1. A quick refrigerating plant of cold chain air conditioner, its characterized in that includes:

an outdoor unit arranged outside the cold chain compartment, a first indoor unit and a second indoor unit which are arranged in the cold chain compartment and connected with the outdoor unit, a control device connected with the first indoor unit, the second indoor unit and the outdoor unit,

the cold chain compartment is also internally provided with a first acquisition device for acquiring the air humidity in the cold chain compartment, and the control device is connected with the first acquisition device; and when the air humidity in the cold chain compartment is greater than a first preset value, the control device controls the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively.

2. A cold chain air conditioning quick refrigeration unit as claimed in claim 1, comprising:

the refrigerating device also comprises a first control system which is connected with the first indoor unit and the outdoor unit and is used for controlling the working mode of the first indoor unit, and a second control system which is connected with the second indoor unit and the outdoor unit and is used for controlling the working mode of the second indoor unit, wherein the first control system and the second control system are connected with the controller.

3. A quick refrigerating method of a cold chain air conditioner is applied to the quick refrigerating device of the cold chain air conditioner, and is characterized by comprising the following steps:

acquiring the air humidity in the cold chain compartment;

judging whether the air humidity is greater than a first preset value or not;

and when the judgment result is yes, controlling the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively.

4. The rapid cooling method for a cold-chain air conditioner according to claim 3, wherein when the determination result is yes, controlling the first indoor unit and the second indoor unit to operate simultaneously in different modes respectively specifically comprises:

when the air humidity is larger than a first preset value, controlling the first indoor unit to operate in a cooling mode, and controlling the second indoor unit to operate in a dehumidification mode;

judging whether the temperature of the copper pipe of the first indoor unit is less than a second preset value,

when the judgment result is yes, controlling the first indoor unit to operate in a defrosting mode, and controlling the second indoor unit to operate in a refrigerating mode;

judging whether the temperature of the copper pipe of the second indoor unit is lower than a second preset value or not;

and when the judgment result is yes, controlling the first indoor unit to operate in a cooling mode, and controlling the second indoor unit to operate in a defrosting mode.

5. The rapid cooling method for a cold-chain air conditioner according to claim 4, wherein the rapid cooling method for a cold-chain air conditioner further comprises:

and when the temperature of the copper pipe of the first indoor unit or the temperature of the copper pipe of the second indoor unit is greater than a second preset value, controlling the first indoor unit or the second indoor unit to be switched from a defrosting mode to a dehumidifying mode.

6. The cold air-conditioning quick refrigerating method according to claim 3, wherein the cold chain air-conditioning quick refrigerating method further comprises:

and when the air humidity is less than a third preset value or the air temperature is less than a fourth preset value, controlling the first indoor unit and the second indoor unit to simultaneously operate in the same mode.

7. A cold chain air conditioner rapid refrigerating system is characterized by comprising:

an acquisition unit; the device is used for acquiring the air humidity in the cold chain compartment;

a judgment unit; judging whether the air humidity is greater than a first preset value or not;

a control unit; and when the judgment result is yes, controlling the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively.

8. The cold chain air conditioner rapid cooling system of claim 7, wherein said control unit further comprises:

the first processing subunit is used for controlling the first indoor unit to operate in a refrigeration mode and the second indoor unit to operate in a dehumidification mode when the air humidity is greater than a first preset value;

a first judging subunit, configured to judge whether the temperature of the copper pipe of the first indoor unit is lower than a second preset value,

the second processing subunit is used for controlling the first indoor unit to operate in a defrosting mode and the second indoor unit to operate in a refrigerating mode when the temperature of the copper pipe of the first indoor unit is smaller than a second preset value;

the second judgment subunit is used for judging whether the temperature of the copper pipe of the second indoor unit is less than a second preset value;

and the third processing subunit is used for controlling the first indoor unit to operate in a refrigeration mode and the second indoor unit to operate in a defrosting mode when the temperature of the copper pipe of the second indoor unit is less than a second preset value.

9. A terminal device, comprising:

a memory for storing a computer program;

a processor for implementing the steps of the cold-chain air conditioner rapid cooling method as claimed in any one of claims 3 to 6 when executing the computer program.

10. A computer-readable storage medium storing a computer program, characterized in that,

the computer program when executed by a processor implements the steps of the cold chain air conditioner rapid cooling method as claimed in any one of claims 3-6.

Background

The development of modern society, food's kind is more and more abundant, and the preservation method is also diversified, and common preservation method includes normal atmospheric temperature preservation, low temperature preservation, vacuum preservation etc. wherein low temperature preservation just needs to establish a low temperature confined environment, and the freezer is born just so.

With the development of the logistics industry, cold chain transportation is also an indispensable part of the food transportation industry. The existing cold chain air conditioner is integrated like a refrigerator or has an indoor unit and an outdoor unit. Carry out the heat exchange with indoor air and refrigerant through the heat exchanger and reach the purpose that reduces the room temperature, current cold chain case because humidity is great, when carrying out quick refrigeration, the copper pipe of indoor set frosts easily, reduces the heat transfer effect to cause the slow problem of refrigeration speed.

Disclosure of Invention

The embodiment of the invention provides a quick refrigerating device of a cold chain air conditioner, and aims to solve the problems that the conventional cold chain air conditioner is easy to frost and low in refrigerating speed when quick refrigeration is carried out.

The embodiment of the invention provides a quick refrigerating device of a cold chain air conditioner, which comprises an outdoor unit arranged outside a cold chain chamber, a first indoor unit and a second indoor unit which are arranged in the cold chain chamber and connected with the outdoor unit, and a control device connected with the first indoor unit, the second indoor unit and the outdoor unit, wherein a first collecting device used for collecting the air humidity in the cold chain chamber is also arranged in the cold chain chamber, and the control device is connected with the first collecting device; and when the air humidity in the cold chain compartment is greater than a first preset value, the control device controls the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively.

Furthermore, the refrigeration device further comprises a first control system connected with the first indoor unit and the outdoor unit and used for controlling the working mode of the first indoor unit, and a second control system connected with the second indoor unit and the outdoor unit and used for controlling the working mode of the second indoor unit, wherein the first control system and the second control system are connected with the controller.

The embodiment of the invention provides a quick refrigerating method of a cold chain air conditioner, which is applied to the quick refrigerating device of the cold chain air conditioner and comprises the following steps: acquiring the air humidity in the cold chain compartment; judging whether the air humidity is greater than a first preset value or not; and when the judgment result is yes, controlling the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively.

Further, when the determination result is yes, controlling the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively specifically includes: when the air humidity is larger than a first preset value, controlling the first indoor unit to operate in a cooling mode, and controlling the second indoor unit to operate in a dehumidification mode; judging whether the temperature of the copper pipe of the first indoor unit is smaller than a second preset value or not, and controlling the first indoor unit to operate in a defrosting mode and the second indoor unit to operate in a refrigerating mode when the judgment result is yes; judging whether the temperature of the copper pipe of the second indoor unit is lower than a second preset value or not; and when the judgment result is yes, controlling the first indoor unit to operate in a cooling mode, and controlling the second indoor unit to operate in a defrosting mode.

Still further, the cold chain air conditioner rapid refrigerating method further comprises the following steps: and when the temperature of the copper pipe of the first indoor unit or the temperature of the copper pipe of the second indoor unit is greater than a second preset value, controlling the first indoor unit or the second indoor unit to be switched from a defrosting mode to a dehumidifying mode.

Still further, the cold chain air conditioner rapid refrigerating method further comprises the following steps: and when the air humidity is less than a third preset value or the air temperature is less than a fourth preset value, controlling the first indoor unit and the second indoor unit to simultaneously operate in the same mode.

The invention provides a rapid refrigerating system of a cold chain air conditioner, which comprises: an acquisition unit; the device is used for acquiring the air humidity in the cold chain compartment; a judgment unit; judging whether the air humidity is greater than a first preset value or not; a control unit; and when the judgment result is yes, controlling the first indoor unit and the second indoor unit to respectively operate in different modes.

Still further, the control unit further includes: the first processing subunit is used for controlling the first indoor unit to operate in a refrigeration mode and the second indoor unit to operate in a dehumidification mode when the air humidity is greater than a first preset value; the first judgment subunit is used for judging whether the temperature of the copper pipe of the first indoor unit is smaller than a second preset value, and the second processing subunit is used for controlling the first indoor unit to operate in a defrosting mode and the second indoor unit to operate in a refrigerating mode when the temperature of the copper pipe of the first indoor unit is smaller than the second preset value; the second judgment subunit is used for judging whether the temperature of the copper pipe of the second indoor unit is less than a second preset value; and the third processing subunit is used for controlling the first indoor unit to operate in a refrigeration mode and the second indoor unit to operate in a defrosting mode when the temperature of the copper pipe of the second indoor unit is less than a second preset value.

The present invention provides a terminal device, including: a memory for storing a computer program; and the processor is used for realizing the steps of the quick refrigeration method of the cold-chain air conditioner when executing the computer program.

The invention provides a computer storage medium, and the computer program is executed by a processor to realize the steps of the quick refrigeration method of the cold-chain air conditioner.

Compared with the prior art, the embodiment of the invention has the following beneficial effects: the rapid refrigeration system of the embodiment comprises an outdoor unit arranged outside a cold chain compartment, a first indoor unit and a second indoor unit which are arranged in the cold chain compartment and connected with the outdoor unit, and a control device connected with the first indoor unit, the second indoor unit and the outdoor unit, wherein a first collecting device used for collecting the air humidity in the cold chain compartment is also arranged in the cold chain compartment, and the control device is connected with the first collecting device; when the air humidity in the cold chain compartment is higher than a first preset value, the control device controls the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively, so that dehumidification and refrigeration are realized, the problem that a cold chain air conditioner is easy to frost in the rapid refrigeration process is solved, and the refrigeration speed and the efficiency are higher under the condition of the same capacity.

Drawings

Fig. 1 is a block diagram of a rapid cooling device of a cold chain air conditioner according to a first embodiment of the present invention;

fig. 2 is a block diagram of a cold chain air conditioner rapid refrigerating apparatus according to a second embodiment of the present invention;

fig. 3 is another block diagram of the cold chain air conditioner fast refrigerating apparatus according to the second embodiment of the present invention;

fig. 4 is a flowchart of a rapid cooling method of a cold chain air conditioner according to a third embodiment of the present invention;

fig. 5 is a flowchart of a rapid cooling method of a cold chain air conditioner according to a fourth embodiment of the present invention;

fig. 6 is a block diagram of a rapid cooling system of a cold-chain air conditioner according to a sixth embodiment of the present invention;

fig. 7 is a block diagram of a terminal device according to an eighth embodiment of the present invention.

Description of the reference numerals

10. An outdoor unit; 11. a compressor;

20. a first indoor unit; 21. a second acquisition device; 22. a first evaporator;

30. a second indoor unit; 31. a third acquisition device; 32. a second evaporator;

40. a control device; 41. a first control system; 411. a first four-way valve; 412. a first fan; 42. a second control system; 421. a second four-way valve; 422. a second fan;

50. a cold chain compartment; 51. a first acquisition device; 52. and a fourth acquisition device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a quick refrigerating device of a cold chain air conditioner, which comprises an outdoor unit 10 arranged outside a cold chain compartment 50, a first indoor unit 20 and a second indoor unit 30 which are arranged in the cold chain compartment 50 and connected with the outdoor unit 10, and a control device 40 connected with the first indoor unit 20, the second indoor unit 30 and the outdoor unit 10, wherein a first collecting device 51 used for collecting the air humidity in the cold chain compartment 50 is also arranged in the cold chain compartment 50, and the control device 40 is connected with the first collecting device 51. When the air humidity in the cold chain compartment 50 is greater than the first preset value, the control device 40 controls the first indoor unit 20 and the second indoor unit 30 to operate simultaneously in different modes respectively, so that dehumidification and refrigeration are realized, the problem that a cold chain air conditioner is easy to frost in the rapid refrigeration process is solved, and under the condition of the same capacity, the refrigeration speed is higher, and the efficiency is higher.

Example one

Referring to fig. 1, the present embodiment provides a rapid cooling device for a cold chain air conditioner, including:

the indoor unit is arranged outside the cold chain compartment 50, the first indoor unit 20 and the second indoor unit 30 which are arranged in the cold chain compartment 50 and connected with the outdoor unit 10, the control device 40 which is connected with the first indoor unit 20, the second indoor unit 30 and the outdoor unit 10, the cold chain compartment 50 is also internally provided with a first collecting device 51 for collecting the air humidity in the cold chain compartment 50, and the control device 40 is connected with the first collecting device 51; the control device 40 controls the first indoor unit 20 and the second indoor unit 30 to simultaneously operate in different modes when the humidity of the air in the cold chain compartment 50 is greater than a first preset value.

In the present embodiment, the first collecting device 51 is a humidity sensor provided in the cold chain compartment 50. The first preset value is an air humidity value at which the cold chain compartment 50 of the system is easily frosted in the cooling mode, for example, the first preset value is 50%. When the air humidity in the cold chain compartment 50 is greater than the first preset value, the first indoor unit 20 is controlled to operate in the cooling mode, and the second indoor unit 30 is controlled to operate in the dehumidification mode.

The first indoor unit 20 and the second indoor unit 30 of the present embodiment operate in different modes simultaneously, and compared to the existing first indoor unit and the existing second indoor unit both operating in a cooling mode, the cooling device of the present embodiment can achieve the function of cooling while dehumidifying.

Further, after a period of operation, when it is detected that the first indoor unit 20 has a frosting condition, the first indoor unit 20 is controlled to be switched from the cooling mode to the defrosting mode, and the second indoor unit 30 is controlled to be switched from the dehumidification mode to the cooling mode. After defrosting is completed, the first indoor unit 20 is switched from the defrosting mode to the dehumidifying mode.

In the rapid cooling device for a cold-chain air conditioner of the present embodiment, when the first indoor unit 20 has a frosting condition, the operation mode of the first indoor unit 20 is switched from the cooling mode to the defrosting mode, and meanwhile, the operation mode of the second indoor unit 30 is switched from the dehumidifying mode to the cooling mode. The first indoor unit 20 and the second indoor unit 30 are operated in different modes, respectively, to prevent the first indoor unit 20 from frosting during cooling.

Furthermore, when it is detected that the second indoor unit 30 has frosting, the first indoor unit 20 is controlled to switch from the dehumidification mode to the cooling mode, and the second indoor unit 30 is controlled to switch from the cooling mode to the defrosting mode. This is repeated in sequence until the temperature in the cold chain box 50 is lowered to the preset temperature. After defrosting is completed, the second indoor unit 30 is switched from the defrosting mode to the dehumidifying mode.

In the rapid cooling device for a cold-chain air conditioner of the present embodiment, when the second indoor unit 30 has a frosting condition, the operation mode of the first indoor unit 20 is switched from the dehumidification mode to the cooling mode, and meanwhile, the operation mode of the second indoor unit 30 is switched from the cooling mode to the defrosting mode. The first indoor unit 20 and the second indoor unit 30 are operated in different modes, respectively, to prevent the second indoor unit 30 from frosting during cooling.

It is understood that in other embodiments, when the air humidity in the cold chain compartment 50 is greater than the first preset value, the first indoor unit 20 can be controlled to operate in the dehumidification mode, and the second indoor unit 30 can be controlled to operate in the cooling mode. After the indoor unit operates for a period of time, when the second indoor unit or the first indoor unit frosts, the operation modes of the first indoor unit 20 and the second indoor unit 30 are switched; to prevent the first and second indoor units 20 and 30 from frosting.

According to the quick refrigerating device of the cold-chain air conditioner, when the air humidity in the cold-chain compartment is larger than the first preset value, the first indoor unit and the second indoor unit are controlled by the control device to respectively operate in different modes, so that dehumidification and refrigeration are realized, the problem that the cold-chain air conditioner is easy to frost in the quick refrigerating process is solved, and under the condition of the same capacity, the refrigerating speed is higher, and the efficiency is higher.

Example two

Referring to fig. 2 and 3, on the basis of the first embodiment, the present embodiment provides a rapid cooling device for a cold-chain air conditioner, which further includes a first control system 41 connected to the first indoor unit 20 and the outdoor unit 10 for controlling the operation mode of the first indoor unit 20, and a second control system 42 connected to the second indoor unit 30 and the outdoor unit 10 for controlling the operation mode of the second indoor unit 30, wherein the first control system 41 and the second control system 42 are connected to the controller 40.

In this embodiment, the first control system 41 includes a first four-way valve 411 connected to the first indoor unit 20 and the outdoor unit 10, and a first switch connected to the first fan 412 and controlling the speed of the first fan 412.

The second control system 42 includes a second four-way valve 421 connected to the second indoor unit 20 and the outdoor unit 10, and a second switch connected to the second fan 422 for controlling the speed of the second fan 422.

The first four-way valve 411 and the second four-way valve 421 are individually connected to the compressor 11 of the outdoor unit 10, and the refrigerants of the first indoor unit 20 and the second indoor unit 30 are adjusted by the first four-way valve 411 and the second four-way valve 412, so that the first indoor unit 20 and the second indoor unit 30 are controlled to simultaneously operate in different modes. And controls the speeds of the first fan 412 and the second fan 422 through the first switch and the second switch.

Further, the first indoor unit 20 and the second indoor unit 30 are respectively provided with a second collecting device 21 and a third collecting device 31 for collecting the temperature of the copper pipe.

In this embodiment, the second sampling device 21 is a temperature sensor disposed on a copper pipe of the first evaporator 22 of the first indoor unit 20, and the third sampling devices 31 are temperature sensors disposed on a copper pipe of the second evaporator 32 of the second indoor unit 30.

When the air humidity is greater than the first preset value, the first four-way valve 411 controls the first indoor unit 20 to operate in a cooling mode, and the second four-way valve 421 controls the second indoor unit 30 to operate in a dehumidifying mode.

After the operation is performed for a period of time, when the temperature of the copper pipe of the first indoor unit 20 is lower than the second preset value, it indicates that the copper pipe of the first indoor unit 20 is frosted, at this time, the first indoor unit 20 is controlled to operate in a heating and defrosting mode by the first four-way valve 411, and the second indoor unit 30 is controlled to operate in a cooling mode by the second four-way valve 421, so that the problem of frosting of the copper pipe when the first indoor unit 20 operates in the cooling mode is prevented.

When the temperature of the copper pipe of the second indoor unit 30 is lower than the second preset value, it indicates that the copper pipe of the second indoor unit 30 is frosted, the second indoor unit 30 is controlled to operate in a heating mode by the second four-way valve 421, and the first indoor unit 20 operates in a cooling mode by the first four-way valve 411, so as to prevent the problem that the copper pipe is frosted when the second indoor unit 30 operates in the cooling mode.

In this embodiment, the second predetermined value is 0 ℃, when the temperature of the copper tube is lower than 0 ℃, it indicates that the copper tube is frosted, and when the temperature of the copper tube is higher than 0 ℃, it indicates that the defrosting is completed.

After the first indoor unit 20 or the second indoor unit 30 starts the heating and defrosting mode, once the temperature of the corresponding copper pipe is detected to be higher than the second preset value, it indicates that defrosting is completed, and the first indoor unit 20 or the second indoor unit 30 is controlled to be switched from the defrosting mode to the dehumidifying mode to operate.

In this embodiment, when the humidity of the air in the cold chain compartment 50 is greater than the first preset value, the first indoor unit 20 and the second indoor unit 30 are controlled to operate in different modes, and according to the relationship between the temperature of the copper pipe corresponding to the first indoor unit 20 and the second indoor unit 30 and the second preset value, the first indoor unit 20 and the second indoor unit 30 are controlled to switch the corresponding operation modes, and the first indoor unit 20 and the second indoor unit 30 are controlled to operate in different modes all the time, so that the functions of dehumidification and refrigeration are realized.

In a preferred embodiment, the cold chain air-conditioning quick refrigerating device further comprises a fourth collecting device 52 which is arranged in the cold chain compartment 50 and is used for collecting the temperature of the air in the cold chain compartment 50.

Further, when the air humidity is lower than the third preset value or the air temperature is lower than the fourth preset value, the first indoor unit 20 and the second indoor unit 30 are controlled to simultaneously operate in the same mode.

In the present embodiment, when the air humidity is lower than the third preset value or the air temperature is lower than the fourth preset value, the first indoor unit 20 and the second indoor unit 30 are controlled to simultaneously operate in the cooling mode to rapidly reduce the temperature in the cold chain compartment 50 to the preset temperature.

In this embodiment, the third preset value is the air humidity value set by the system, which is not easy to frost in the cooling condition. For example, the third preset value has an air humidity of 30%. The fourth preset value can be set according to the requirements of cold chain food, for example, the fourth preset value can be set to minus 5 degrees to 10 degrees. The preset temperature is a temperature required for storing food in the cold chain compartment 50 and is set by a user as required.

According to the quick refrigerating device of the cold-chain air conditioner, the first indoor unit and the second indoor unit are controlled to operate in different modes respectively by combining the air humidity in the cold-chain compartment and the temperatures of copper pipes of the first indoor unit and the second indoor unit through the two independent four-way valves, when the air humidity in the cold-chain compartment reaches a preset value or the temperature in the cold-chain compartment falls to the preset value, the first indoor unit and the second indoor unit are controlled to operate simultaneously in the same mode, namely the refrigerating mode, dehumidification and refrigeration are achieved, the problem that the cold-chain air conditioner is prone to frosting in the quick refrigerating process is solved, the refrigerating speed is higher under the condition of the same capacity, and the defrosting effect is improved.

EXAMPLE III

The embodiment provides a rapid refrigerating method of a cold-chain air conditioner, which is applied to the rapid refrigerating device of the cold-chain air conditioner and comprises the following steps,

in S201, the air humidity inside the cold chain compartment 50 is acquired;

in the present embodiment, the air humidity is acquired by a humidity sensor provided in the cold chain compartment 50.

In S202, determining whether the air humidity is greater than a first preset value;

in S203, if the determination result is yes, the first indoor unit 20 and the second indoor unit 30 are controlled to operate simultaneously in different modes.

In the present embodiment, the air humidity in the cold chain compartment 50 is obtained by the first collecting device 51, wherein the first collecting device 51 is a humidity sensor disposed in the cold chain compartment 50.

The first preset value is a humidity value at which the cold chain compartment 50 of the system is easily frosted in the cooling mode, for example, the first preset value is 50%. When the air humidity in the cold chain compartment 50 is greater than the first preset value, the first indoor unit 20 is controlled to operate in the cooling mode, and the second indoor unit 30 is controlled to operate in the dehumidification mode.

The first indoor unit 20 and the second indoor unit 30 of the present embodiment respectively operate in different modes, and compared to the existing first indoor unit and the existing second indoor unit both operating in a cooling mode, the cooling device of the present embodiment can realize the function of cooling while dehumidifying.

Further, after a period of operation, when it is detected that the first indoor unit 20 has a frosting condition, the first indoor unit 20 is controlled to be switched from the cooling mode to the defrosting mode, and the second indoor unit 30 is controlled to be switched from the dehumidification mode to the cooling mode. After defrosting is completed, the first indoor unit 20 is switched from the defrosting mode to the dehumidifying mode.

In the rapid cooling method of the cold-chain air conditioner of the present embodiment, when the first indoor unit 20 is frosted, the operation mode of the first indoor unit 20 is switched from the cooling mode to the defrosting mode, and meanwhile, the operation mode of the second indoor unit 30 is switched from the dehumidifying mode to the cooling mode. The first indoor unit 20 and the second indoor unit 30 are operated in different modes, respectively, to prevent the first indoor unit 20 from frosting during cooling.

Furthermore, when it is detected that the second indoor unit 30 has frosting, the first indoor unit 20 is controlled to switch from the dehumidification mode to the cooling mode, and the second indoor unit 30 is controlled to switch from the cooling mode to the defrosting mode. This is repeated in sequence until the temperature in the cold chain box 50 is lowered to the preset temperature. After defrosting is completed, the second indoor unit 30 is switched from the defrosting mode to the dehumidifying mode.

In the rapid cooling method of the cold-chain air conditioner of the present embodiment, when the second indoor unit 30 is frosted, the operation mode of the first indoor unit 20 is switched from the dehumidification mode to the cooling mode, and meanwhile, the operation mode of the second indoor unit 30 is switched from the cooling mode to the defrosting mode. The first indoor unit 20 and the second indoor unit 30 are operated in different modes, respectively, to prevent the second indoor unit 30 from frosting during cooling.

It is understood that in other embodiments, when the air humidity in the cold chain compartment 50 is greater than the first preset value, the first indoor unit 20 can be controlled to operate in the dehumidification mode, and the second indoor unit 30 can be controlled to operate in the cooling mode. After the indoor unit operates for a period of time, when the second indoor unit or the first indoor unit frosts, the operation modes of the first indoor unit 20 and the second indoor unit 30 are switched; to prevent the first and second indoor units 20 and 30 from frosting.

According to the quick refrigeration method of the cold chain air conditioner, when the humidity in the cold chain compartment is larger than the first preset value, the first indoor unit and the second indoor unit are controlled to simultaneously operate in different modes respectively, dehumidification and refrigeration are achieved, the problem that the cold chain air conditioner is prone to frosting in the quick refrigeration process is solved, and under the condition of the same capacity, the refrigeration speed is higher, and the efficiency is higher.

Example four

On the basis of the third embodiment, the invention further provides a quick refrigeration method for a cold-chain air conditioner, wherein S201 and S202 are as in the third embodiment and are not described herein again. If the result is yes, controlling the first indoor unit 20 and the second indoor unit 30 to operate simultaneously in different modes specifically includes:

in S301, when the air humidity is greater than the first preset value, the first indoor unit 20 is controlled to operate in the cooling mode, and the second indoor unit 30 is controlled to operate in the dehumidification mode.

In the embodiment of the present invention, the first preset value is an air humidity value which is easy to frost under the refrigeration condition, for example, the air humidity is 50%. The air humidity is more than 50 percent and is easy to frost when being refrigerated. The first indoor unit 20 is controlled to operate in a cooling mode and the second indoor unit 30 is controlled to operate in a dehumidifying mode. In other embodiments, the first indoor unit 20 may be controlled to operate in a dehumidification mode, and the second indoor unit 30 may be controlled to operate in a cooling mode.

In S302, it is determined whether the temperature of the copper tube of the first indoor unit 20 is less than a second preset value.

In the embodiment of the present invention, the temperature of the copper tube of the first indoor unit is obtained by the temperature sensor arranged on the copper tube of the evaporator 22 of the first indoor unit 20.

In S303, when the determination result is yes, the first indoor unit 20 is controlled to operate in the defrosting mode, and the second indoor unit 30 is controlled to operate in the cooling mode;

in the embodiment of the present invention, the second preset value is 0 degrees, and the frosting phenomenon occurs when the refrigeration is performed. When the temperature of the copper pipe of the first indoor unit 20 is lower than the second preset value, it indicates that the copper pipe of the first indoor unit 20 is frosted, and at this time, the first indoor unit 20 may be controlled to start the heating and defrosting mode, and at the same time, the second indoor unit 30 may be controlled to operate in the cooling mode.

In S304, it is determined whether the temperature of the copper pipe of the second indoor unit 30 is lower than a second preset value;

in the embodiment of the present invention, the temperature of the copper pipe of the second indoor unit 30 is obtained by the temperature sensor arranged on the copper pipe of the evaporator 32 of the second indoor unit 30.

In S305, if the determination result is yes, the first indoor unit 20 is controlled to operate in the cooling mode, and the second indoor unit 30 is controlled to operate in the defrosting mode.

In the embodiment of the present invention, when the temperature of the copper pipe of the second indoor unit 30 is lower than the second preset value, which indicates that the copper pipe of the second indoor unit 30 is frosted, the second indoor unit 30 is controlled to operate in the heating mode, and the first indoor unit 20 operates in the cooling mode.

In this embodiment, the second predetermined value is 0 ℃, when the temperature of the copper tube is lower than 0 ℃, it indicates that the copper tube is frosted, and when the temperature of the copper tube is higher than 0 ℃, it indicates that the defrosting is completed.

After the heating defrosting mode is started, once the temperature of the corresponding copper pipe is detected to be higher than a second preset value, which indicates that defrosting is completed, the first indoor unit 20 or the second indoor unit 30 is controlled to operate in a dehumidification mode.

In this embodiment, the first indoor unit 20 switches to operate in the cooling mode, the defrosting mode, and the dehumidifying mode, the cooling mode, and the defrosting mode sequentially switch to operate in the second indoor unit 30; the steps are repeated so as to realize dehumidification and refrigeration.

According to the quick refrigeration method of the cold-chain air conditioner, when the air humidity in the cold-chain compartment is larger than the first preset value, the first indoor unit and the second indoor unit are controlled to simultaneously operate in different modes respectively, and the first indoor unit and the second indoor unit are controlled to switch the operation modes by combining the relation between the temperature of the copper pipes of the first indoor unit and the second preset value, so that dehumidification and refrigeration are achieved, the problem that the cold-chain air conditioner is prone to frosting in the quick refrigeration process is solved, the refrigeration speed is higher under the condition of the same capacity, and the defrosting effect is improved.

EXAMPLE five

On the basis of the third or fourth embodiment, this embodiment provides a method for rapidly cooling a cold-chain air conditioner, where the method further includes:

and when the air humidity is less than the third preset value or the air temperature is less than the fourth preset value, controlling the first indoor unit 20 and the second indoor unit 30 to simultaneously operate in the same mode.

In this embodiment, the third preset value is a humidity value set by the system and not prone to frost formation in a cooling condition, for example, the third preset value is 30%. The fourth preset value can be set according to the user requirement, for example, the fourth preset value can be set to be minus 5 degrees to 10 degrees.

When the air humidity is lower than the third preset value, which indicates that the humidity in the cold chain compartment 50 is not easily frosted, the first indoor unit 20 and the second indoor unit 30 are controlled to simultaneously start the cooling mode, so that the temperature in the cold chain compartment 50 is rapidly reduced to the preset temperature. Or when the air temperature in the cold chain compartment 50 is lower than the fourth preset value, it indicates that the temperature in the cold chain compartment 50 has decreased, and at this time, the frost is not easily formed, and the refrigeration mode can be simultaneously started to quickly decrease the temperature in the cold chain compartment 50 to the preset temperature.

According to the rapid refrigeration method of the cold-chain air conditioner, when the humidity in the cold-chain compartment is larger than a first preset value, the first indoor unit and the second indoor unit are controlled to simultaneously operate in different modes, the first indoor unit and the second indoor unit are controlled to switch the operation modes by combining the relation between the temperature of copper pipes of the first indoor unit and the second preset value until the air humidity in the cold-chain compartment 50 is lower than a third preset value or the temperature in the cold-chain compartment 50 is lower than a fourth preset value, the first indoor unit and the second indoor unit both operate in the refrigeration mode, dehumidification and refrigeration are achieved, the problem that the cold-chain air conditioner is prone to frosting in the rapid refrigeration process is solved, the refrigeration speed is higher under the condition of the same capacity, and the defrosting effect is improved.

EXAMPLE six

The embodiment of the present invention further provides a rapid refrigeration system of a cold-chain air conditioner, where the rapid refrigeration system 400 of a cold-chain air conditioner includes,

an acquisition unit 410; for obtaining the air humidity inside the cold chain compartment 50;

in this embodiment, the first collecting unit is a humidity sensor disposed in the cold chain compartment 50 to obtain the real-time humidity in the cold chain compartment 50.

A judgment unit 420; the air humidity detection device is used for judging whether the air humidity is larger than a first preset value or not;

a control unit 430; and is used for controlling the first indoor unit 20 and the second indoor unit 30 to operate simultaneously in different modes respectively when the judgment result is yes.

In the present embodiment, the first collecting device 51 is a humidity sensor provided in the cold chain compartment 50. The first preset value is a humidity value at which the cold chain compartment 50 of the system is easily frosted in the cooling mode, for example, the first preset value is 50%. When the humidity of the air in the cold chain compartment 50 is greater than the first preset value, the control unit 430 controls the first indoor unit 20 to operate in the cooling mode and controls the second indoor unit 30 to operate in the dehumidification mode.

The first indoor unit 20 and the second indoor unit 30 of the present embodiment operate in different modes simultaneously, and compared to the existing first indoor unit and the existing second indoor unit both operating in a cooling mode, the cooling device of the present embodiment can achieve the function of cooling while dehumidifying.

Further, after a period of operation, when it is detected that the first indoor unit 20 has a frosting condition, the first indoor unit 20 is controlled to be switched from the cooling mode to the defrosting mode, and the second indoor unit 30 is controlled to be switched from the dehumidification mode to the cooling mode. After defrosting is completed, the first indoor unit 20 is switched from the defrosting mode to the dehumidifying mode.

In the rapid cooling system of the cold-chain air conditioner of the present embodiment, when the first indoor unit 20 has a frosting condition, the operation mode of the first indoor unit 20 is switched from the cooling mode to the defrosting mode, and meanwhile, the operation mode of the second indoor unit 30 is switched from the dehumidifying mode to the cooling mode. The first indoor unit 20 and the second indoor unit 30 are operated in different modes, respectively, to prevent the first indoor unit 20 from frosting during cooling.

Furthermore, when it is detected that the second indoor unit 30 has frosting, the first indoor unit 20 is controlled to switch from the dehumidification mode to the cooling mode, and the second indoor unit 30 is controlled to switch from the cooling mode to the defrosting mode. This is repeated in sequence until the temperature in the cold chain box 50 is lowered to the preset temperature. After defrosting is completed, the second indoor unit 30 is switched from the defrosting mode to the dehumidifying mode.

In the rapid cooling system of the cold-chain air conditioner of the present embodiment, when the second indoor unit 30 has a frosting condition, the operation mode of the first indoor unit 20 is switched from the dehumidification mode to the cooling mode, and meanwhile, the operation mode of the second indoor unit 30 is switched from the cooling mode to the defrosting mode. The first indoor unit 20 and the second indoor unit 30 are operated in different modes, respectively, to prevent the second indoor unit 30 from frosting during cooling.

It is understood that in other embodiments, when the air humidity in the cold chain compartment 50 is greater than the first preset value, the first indoor unit 20 can be controlled to operate in the dehumidification mode, and the second indoor unit 30 can be controlled to operate in the cooling mode. After the indoor unit operates for a period of time, when the second indoor unit or the first indoor unit frosts, the operation modes of the first indoor unit 20 and the second indoor unit 30 are switched; to prevent the first and second indoor units 20 and 30 from frosting.

According to the rapid refrigeration system of the cold-chain air conditioner, when the air humidity in the cold-chain compartment is larger than the first preset value, the control unit controls the first indoor unit and the second indoor unit to simultaneously operate in different modes respectively, so that dehumidification and refrigeration are realized, the problem that the cold-chain air conditioner is easy to frost in the rapid refrigeration process is solved, and the refrigeration speed and the efficiency are higher under the condition of the same capacity.

EXAMPLE seven

On the basis of the sixth embodiment, the present embodiment further provides a rapid cooling system of a cold-chain air conditioner, where the control unit includes:

the first processing subunit is used for controlling the first indoor unit 20 to operate in a cooling mode and the second indoor unit 30 to operate in a dehumidification mode when the air humidity is greater than a first preset value;

a first judging subunit, configured to judge whether the temperature of the copper pipe of the first indoor unit 20 is lower than a second preset value,

the second processing subunit is used for controlling the first indoor unit 20 to operate in a defrosting mode and the second indoor unit 30 to operate in a cooling mode when the temperature of the copper pipe of the first indoor unit 20 is less than a second preset value;

the second judging subunit is configured to judge whether the temperature of the copper pipe of the second indoor unit 30 is lower than a second preset value;

and the third processing sub-unit is used for controlling the first indoor unit 20 to operate in a cooling mode and the second indoor unit 30 to operate in a defrosting mode when the temperature of the copper pipe of the second indoor unit 30 is less than a second preset value.

Further, the control unit further includes:

a third judging subunit, configured to judge whether the air humidity is lower than a third preset value or whether the air temperature is lower than a fourth preset value,

and a fourth processing subunit, configured to control both the first indoor unit 20 and the second indoor unit 30 to operate in the cooling mode when the air humidity is less than the third preset value or the air temperature is less than the fourth preset value.

According to the cold chain air conditioner rapid refrigeration system provided by the embodiment of the invention, when the air humidity in the cold chain compartment is higher than a first preset value, the first indoor unit and the second indoor unit are controlled to simultaneously operate in different modes respectively, and the first indoor unit and the second indoor unit are controlled to switch the operation modes by combining the relation between the temperature of copper pipes of the first indoor unit and the second preset value until the air humidity in the cold chain compartment is lower than a third preset value or the temperature in the cold chain compartment is lower than a fourth preset value, the first indoor unit and the second indoor unit simultaneously operate in the same mode, namely the refrigeration mode, so that dehumidification and refrigeration are realized, the problem that the cold chain air conditioner is easy to frost in the rapid refrigeration process is solved, the refrigeration speed is higher under the condition of the same capacity, and the defrosting effect is improved.

Example eight

An embodiment of the present invention provides a terminal, where the terminal 500 includes: a processor 510, a memory 520, and a computer program, such as a cold chain air conditioner fast cooling method program, stored in and executable on the processor. And when the processor executes the computer program, the steps in the embodiment of the quick refrigeration method of the cold-chain air conditioner are realized.

Illustratively, a computer program can be partitioned into one or more modules, which are stored in memory and executed by a processor to implement the present invention. One or more of the modules may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program in the terminal.

Those skilled in the art will appreciate that the above description of the terminal is by way of example only and is not intended to be limiting, and that the terminal may include more or less components than those described, or some components may be combined, or different components may include, for example, input and output devices, network access devices, buses, etc.

The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the terminal, and various interfaces and lines connecting the various parts of the overall terminal.

The memory may be used to store computer programs and/or modules, and the processor may implement various functions of the terminal by operating or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid state storage device.

Example nine

On the basis of the seventh embodiment, the embodiment of the present invention provides a computer-readable storage medium, and the terminal-integrated module/unit may be stored in the computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, all or part of the functions of the units in the system according to the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the functions of the steps of the above embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer memory, Read-only memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.