1. The utility model provides a miniaturized air conditioning cabinet assembly for car which characterized in that includes:

the air inlet assembly (1) is provided with an air inlet, and a blower cavity is formed in the air inlet assembly (1);

the air-blowing device comprises a flow channel shell (6), wherein a plurality of air outlets are formed in the flow channel shell (6), a heat exchange air channel (15) and a plurality of air outlet channels which are arranged separately from each other are formed in the flow channel shell (6), the heat exchange air channel (15) is communicated with the air blower cavity, each air outlet channel can be communicated with the heat exchange air channel (15), and the number of the air outlet channels is the same as that of the air outlets and corresponds to that of the air outlets one by one;

the blower assembly (2), the blower assembly (2) locates in the said blower cavity;

the heat exchanger assembly (4) and the PTC electric heating assembly (5) are both arranged in the heat exchange air duct (15), and the heat exchanger assembly (4) and the PTC electric heating assembly (5) are respectively and independently controlled;

the air blower assembly (2) drives airflow to enter the heat exchange air duct (15) from the air inlet, the airflow is cooled by cooling liquid flowing into the heat exchanger assembly (4), and then the airflow flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air duct (15), so that refrigeration of the passenger compartment is realized;

the air blower assembly (2) drives air flow to enter the heat exchange air duct (15) from the air inlet, the air flow is dehumidified by cooling liquid flowing into the heat exchanger assembly (4), then is heated by the PTC electric heating assembly (5), and then flows out to the corresponding air outlet through an air outlet channel communicated with the heat exchange air duct (15), so that dehumidifying and heating of the passenger compartment are realized;

the air blower assembly (2) drives air flow to enter the heat exchange air duct (15) from the air inlet, the air flow is dehumidified by cooling liquid flowing into the heat exchanger assembly (4), and then flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air duct (15), so that dehumidification of the passenger compartment is realized;

the blower assembly (2) drives airflow to enter the heat exchange air duct (15) from the air inlet, and the airflow is heated by cooling liquid flowing into the heat exchanger assembly (4) and then heated by the PTC electric heating assembly (5);

the air blower assembly (2) drives air flow to enter the heat exchange air duct (15) from the air inlet, and the air flow is heated only by cooling liquid flowing into the heat exchanger assembly (4), so that heating of a passenger compartment is realized;

the blower assembly (2) drives airflow to enter the heat exchange air duct (15) from the air inlet, and the airflow is heated only by the PTC electric heating assembly (5) to realize heating of a passenger compartment; or

The blower assembly (2) drives airflow to enter the heat exchange air duct (15) from the air inlet, and the airflow passes through the heat exchanger assembly (4) and the PTC electric heating assembly (5) to realize ventilation of the passenger compartment.

2. The air conditioning cabinet assembly as set forth in claim 1, wherein the communication state between each of the air outlet passages and the heat exchange air duct (15) is independently controlled by a corresponding damper assembly.

3. The air conditioning cabinet assembly of claim 1, wherein a speed governor for adjusting the rotational speed of the blower assembly (2) is further mounted on the flow passage housing (6).

4. The air conditioning cabinet assembly according to claim 1, wherein when the air flow in the heat exchanging air duct (15) needs to be heated, the cooling liquid flows into the heat exchanger assembly (4) after being heated by the water heating PTC electric heating assembly (5);

when the air flow in the heat exchange air duct (15) needs to be cooled, cooling liquid flows into the heat exchanger assembly (4) after being cooled by a battery cooler;

when the air flow needs to be dehumidified, cooling liquid is cooled by a battery cooler and then flows into the heat exchanger assembly (4), and the temperature of the cooling liquid for dehumidifying the air flow in the heat exchange air duct (15) is higher than that of the cooling liquid for cooling the air flow in the heat exchange air duct (15).

5. The air conditioning cabinet assembly of claim 2, wherein the plurality of air outlets comprise: a blowing surface air port (8), a defrosting air port (10), a blowing foot air port (12) and a rear blowing air outlet (14);

a plurality of air-out passageways include: a blowing surface air outlet channel communicated with the blowing surface air port (8), a defrosting air outlet channel communicated with the defrosting air port (10), a blowing foot air outlet channel communicated with the blowing foot air port (12) and a post-blowing air outlet channel communicated with the post-blowing air outlet (14);

the plurality of damper assemblies includes: the defrosting air door structure comprises a face blowing air door assembly (7) arranged in a face blowing air outlet channel, a defrosting air door assembly (9) arranged in a defrosting air outlet channel, a foot blowing air door assembly (11) arranged in a foot blowing air outlet channel and a rear blowing air door assembly (13) arranged in a rear blowing air outlet channel.

6. A control method of an air conditioner for a vehicle, applied to the miniaturized air conditioning box assembly for the vehicle of any one of claims 1 to 5, comprising:

when detecting that a user has a passenger compartment refrigeration demand, the blower assembly (2) drives airflow entering the heat exchange air duct (15), the airflow enters the heat exchanger assembly (4) for refrigeration through cooling liquid, and then the airflow flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air duct (15);

when a user is detected to have the requirement of dehumidifying and heating the passenger compartment, the blower assembly (2) drives airflow entering the heat exchange air channel (15), the airflow is dehumidified by cooling liquid entering the heat exchanger assembly (4), is heated by the PTC electric heating assembly (5), and flows out to the corresponding air outlet through an air outlet channel communicated with the heat exchange air channel (15);

when a user is detected to have a passenger compartment dehumidification demand, the air blower assembly (2) drives air flow entering the heat exchange air channel (15), the air flow is dehumidified by cooling liquid entering the heat exchanger assembly (4), and then the air flow flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air channel (15);

when a user is detected to have a passenger compartment heating demand, the blower assembly (2) drives airflow entering the heat exchange air channel (15), the airflow is heated by the water heating PTC electric heating assembly (5), then flows into cooling liquid in the heat exchanger assembly (4) to be heated, and then flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air channel (15); the air blower assembly (2) drives air flow entering the heat exchange air duct (15), the air flow is heated by the water heating PTC electric heating assembly (5), then the cooling liquid flowing into the heat exchanger assembly (4) and the PTC electric heating assembly (5) are heated together, and then the air flow flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air duct (15); or the blower assembly (2) drives airflow to enter the heat exchange air duct (15) from the air inlet, and the airflow is heated only by the PTC electric heating assembly (5), so that heating of the passenger compartment is realized;

the temperature of the cooling liquid entering the heat exchanger assembly (4) for dehumidifying the air flow is higher than the temperature of the cooling liquid entering the heat exchanger assembly (4) for refrigerating the air flow; the cooling liquid entering the heat exchanger assembly (4) for dehumidifying the air flow and the cooling liquid for refrigerating the air flow are both cooled by a battery cooler;

when the ventilation requirement of the passenger compartment of a user is detected, the blower assembly (2) drives airflow to enter the heat exchange air duct (15) from the air inlet, and the airflow passes through the heat exchanger assembly (4) and the PTC electric heating assembly (5) to realize the ventilation of the passenger compartment.

7. An automobile, characterized by comprising the miniaturized air conditioning case assembly for an automobile of any one of claims 1 to 6.

Background

With the continuous development of electric vehicles, artificial intelligence and new momentum, more and more electric vehicles are provided with new technical parts such as an ultra-large screen, head-up display, an electric air outlet, a vehicle machine and a fragrance in the vehicle. The riding comfort of the passengers is also continuously optimized, such as the queen seat proposed in recent years. On the other hand, in order to reduce the power consumption of air-conditioning heating, the efficient heat pump air-conditioning technology is also applied in the automobile industry on a large scale. The added new technology, new functions and heat pump air conditioner continuously occupy the limited space in the vehicle. Current traditional air-conditioning box installs in the well lower part and the lower right part space of instrument board, and the face tuber pipe of blowing of configuration, blow foot tuber pipe and defrosting tuber pipe and run through whole instrument board below, the installation of restriction instrument board new technology part and the vice space of driving queen seat. In view of the above, it is desirable to provide a small-sized air conditioning box.

The volume requirement of the automobile air conditioner is smaller and smaller, but related functions cannot be reduced, such as the conventional values of the air conditioner, such as the refrigerating capacity, the heating capacity, the air volume, the noise value and the like, cannot be lower than the conventional values; therefore, the space structure and other structures inside the automobile air conditioner need to be optimized to meet the requirements of customers. Therefore, designing an automobile air conditioner with reasonable spatial arrangement to meet the requirements of customers is an urgent technical problem to be solved.

Disclosure of Invention

The invention aims to solve the problems of overlarge air conditioner box volume, complex flow channel and the like, and provides an automobile air conditioner box assembly for simplifying parts of an air conditioner box, an automobile air conditioner control method and an automobile, wherein related functions cannot be reduced, and conventional values of some air conditioners such as refrigerating capacity, heating capacity, dehumidification, air volume, noise value and the like cannot be lower than conventional values.

The technical scheme of the invention is as follows:

the invention provides a small-sized air conditioning box assembly for an automobile, which comprises:

the air inlet assembly is provided with an air inlet, and a blower cavity is formed in the air inlet assembly;

the air blower comprises a flow channel shell, a heat exchange air channel and a plurality of air outlet channels, wherein a plurality of air outlets are formed in the flow channel shell, the heat exchange air channel and the plurality of air outlet channels are formed in the flow channel shell and are arranged separately from each other, the heat exchange air channel is communicated with a blower cavity, each air outlet channel can be communicated with the heat exchange air channel, and the number of the air outlet channels is the same as that of the air outlets and corresponds to that of the air outlets one by one; a blower assembly disposed within the blower cavity;

the heat exchanger assembly and the PTC heater assembly are both arranged in the heat exchange air channel, and the heat exchanger assembly and the PTC electric heating assembly are respectively and independently controlled;

the air blower assembly drives airflow to enter the heat exchange air duct from the air inlet, the airflow is cooled by cooling liquid flowing into the heat exchanger assembly and then flows out to the corresponding air outlet through an air outlet channel communicated with the heat exchange air duct, and refrigeration of the passenger compartment is realized;

the air blower assembly drives airflow to enter the heat exchange air duct from the air inlet, the airflow is dehumidified by cooling liquid flowing into the heat exchanger assembly, then is heated by the PTC electric heating assembly, and then flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air duct, so that dehumidifying and heating of the passenger compartment are realized;

the air blower assembly drives air flow to enter the heat exchange air duct from the air inlet, the air flow is dehumidified by cooling liquid flowing into the heat exchanger assembly and then flows out to the corresponding air outlet through an air outlet channel communicated with the heat exchange air duct, and dehumidification of the passenger compartment is achieved;

the air blower assembly drives air flow to enter the heat exchange air duct from the air inlet, and the air flow is heated by the cooling liquid flowing into the heat exchanger assembly and then heated by the PTC electric heating assembly;

the air blower assembly drives air flow to enter the heat exchange air duct from the air inlet, and the air flow is heated only by the cooling liquid flowing into the heat exchanger assembly, so that heating of a passenger compartment is realized;

the blower assembly drives airflow to enter the heat exchange air duct from the air inlet, and the airflow is heated only by the PTC electric heating assembly, so that heating of a passenger compartment is realized; or

The blower assembly drives airflow to enter the heat exchange air duct from the air inlet, and the airflow passes through the heat exchanger assembly and the PTC electric heating assembly to realize ventilation of the passenger compartment.

Preferably, the communication state between each air outlet channel and the heat exchange air duct is independently controlled by a corresponding air door assembly.

Preferably, a speed regulator for regulating the rotating speed of the blower assembly is further mounted on the runner housing.

Preferably, when the air flow in the heat exchange air duct needs to be heated, the cooling liquid flows into the heat exchanger assembly after being heated by the water heating PTC electric heating assembly;

when the air flow in the heat exchange air duct needs to be cooled, cooling liquid flows into the heat exchanger assembly after being cooled by a battery cooler;

when the air flow needs to be dehumidified, cooling liquid is cooled by the battery cooler and then flows into the heat exchanger assembly, and the temperature of the cooling liquid for dehumidifying the air flow in the heat exchange air duct is higher than the temperature of the cooling liquid for cooling the air flow in the heat exchange air duct.

Preferably, the plurality of air outlets comprise: a face blowing air port, a defrosting air port, a foot blowing air port and a back blowing air outlet;

a plurality of air-out passageways include: the defrosting air outlet channel is communicated with the defrosting air outlet, the foot blowing air outlet channel is communicated with the foot blowing air outlet, and the rear blowing air outlet channel is communicated with the rear blowing air outlet;

the plurality of damper assemblies includes: the defrosting air door assembly is arranged in the defrosting air-out channel, the foot air door assembly is arranged in the foot air-out channel, and the rear air door assembly is arranged in the rear air-out channel.

The invention also provides a control method of the vehicle air conditioner, which is applied to the miniaturized air conditioner box assembly for the vehicle and comprises the following steps:

when detecting that a user has a passenger compartment refrigeration requirement, the blower assembly drives airflow entering the heat exchange air duct to refrigerate through cooling liquid entering the heat exchanger assembly, and then the airflow flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air duct;

when the passenger compartment heating requirement of a user is detected, the blower assembly drives airflow entering the heat exchange air channel, the airflow is heated by the water heating PTC electric heating assembly and then flows into cooling liquid in the heat exchanger assembly for heating, and then the airflow flows out to a corresponding air outlet through an air outlet channel communicated with the heat exchange air channel; the air blower assembly drives air flow to enter the heat exchange air duct from the air inlet, and the air flow is heated only by the cooling liquid flowing into the heat exchanger assembly, so that heating of a passenger compartment is realized; or the blower assembly drives airflow to enter the heat exchange air duct from the air inlet, and the airflow is heated only by the PTC electric heating assembly, so that heating of the passenger compartment is realized;

the temperature of the cooling liquid entering the heat exchanger assembly for dehumidifying the air flow is higher than that of the cooling liquid entering the heat exchanger assembly for refrigerating the air flow; cooling liquid entering the heat exchanger assembly for dehumidifying the air flow and cooling the air flow by the battery cooler;

when the ventilation requirement of the passenger compartment of the user is detected, the blower assembly drives airflow to enter the heat exchange air duct from the air inlet, and the airflow passes through the heat exchanger assembly and the PTC electric heating assembly to realize ventilation of the passenger compartment.

The invention also provides an automobile comprising the miniaturized air conditioning box assembly for the automobile.

The invention has the beneficial effects that:

the heat pump air conditioner box assembly has the advantages that internal parts of the traditional heat pump air conditioner box assembly are reduced, an air flow channel of the air conditioner box is optimized, and particularly an evaporator assembly and a temperature air door assembly are omitted. Compare traditional air-conditioning box assembly, reduced the volume of air-conditioning box by a wide margin, simplified HVAC internal flow channel, practiced thrift purchasing cost, reduced air-conditioning box assembly weight. After the volume of the air conditioning box is reduced, the arrangement position of the air conditioning box in a passenger compartment can be relatively flexible, and meanwhile, more installation space is reserved for new technology.

Drawings

FIG. 1 is a perspective view of a small air conditioning box assembly for an automobile according to the present invention;

FIG. 2 is an isometric view of a compact air conditioning case assembly structure for an automobile according to the present invention;

FIG. 3 is a schematic view of the internal structure of the small air conditioning box assembly for an automobile according to the present invention;

FIG. 4 is a schematic view of a heat exchanger assembly in the small air conditioning box assembly for an automobile according to the present invention;

FIG. 5 is a schematic diagram of the operating principle of the air conditioning system of the present invention;

FIG. 6 is a schematic view of the operation of the air conditioning system of the present invention in a heating mode;

fig. 7 is a schematic view illustrating the operation principle of the air conditioning system in the cooling mode, the dehumidifying mode and the heating and dehumidifying mode.

Detailed Description

The invention will be described in detail below with reference to the system schematic shown in the drawing. However, these embodiments are not intended to limit the present invention, and those skilled in the art may make structural, method, or functional changes according to these embodiments, such as adding other air outlets, changing mode movement mechanisms, and the like, which are all included in the scope of the present invention.

As shown in fig. 1 to 3, the miniaturized air conditioning cabinet assembly with simplified components of the present invention includes an air intake assembly 1, a blower assembly 2, a speed regulator 3 for adjusting the rotation speed of the blower assembly 2, a heat exchanger assembly 4, a PTC electric heater assembly 5, a flow channel housing 6, a face blowing damper assembly 7, a face blowing air outlet 8, a defrosting damper assembly 9, a defrosting air outlet 10, a foot blowing damper assembly 11, a foot blowing air outlet 12, a rear blowing damper assembly 13, and a rear blowing air outlet 14.

A blower cavity is formed in the air inlet assembly 1; a heat exchange air duct 15 and a plurality of air outlet channels are formed in the flow channel shell 6, and the heat exchange air duct 15 is communicated with the blower cavity; the plurality of air outlet channels can be communicated with the heat exchange air channel 15 through corresponding air door assemblies, that is, the communication state (communication or non-communication) between each air outlet channel and the heat exchange air channel 15 is controlled through the corresponding air door assemblies.

The blowing surface air outlet 8, the defrosting air outlet 10, the blowing pin air outlet 12 and the post-blowing air outlet 14 are respectively and correspondingly communicated with the blowing surface air outlet channel, the defrosting air outlet channel, the blowing pin air outlet channel and the post-blowing air outlet channel.

The blower assembly 2 is arranged in the blower cavity, the speed regulator 3, the heat exchanger assembly 4 and the PTC electric heater assembly 5 are arranged at the air inlet end of the heat exchange air duct 15, and the face blowing air door assembly 7, the defrosting air door assembly 9, the foot blowing air door assembly 11 and the rear blowing air door assembly 13 are respectively arranged at the tail end of the heat exchange air duct 15 and correspond to the front of the face blowing air outlet 8, the defrosting air outlet 10, the foot blowing air outlet 12 and the rear blowing air outlet 14. The specific installation mode of the speed regulator 3, the heat exchanger assembly 4, the PTC electric heater assembly 5 and each air door assembly in the heat exchange channel can refer to the related means in the prior art.

The heat exchanger assemblies 4 are arranged in front of the PTC electric heater assemblies 5 in the heat exchange air duct 15 and are arranged in parallel with each other. Thus, the air flow is first passed through the heat exchanger assembly 4 and then through the PTC electric heater assembly 5.

Fig. 4 is a schematic view of a heat exchanger assembly 4 in the small air conditioning box assembly for an automobile according to the present invention. The heat exchanger assembly 4 includes a liquid flow path inlet 21 and a liquid flow path outlet 22, and an air flow path 23. Cold water or hot water may be passed through the liquid flow path inlet 21 to the liquid flow path outlet 22. When cold water passes from the liquid flow passage inlet 21 to the liquid flow passage outlet 22, the air in the heat exchange air duct 15 exchanges heat with the cold water, and refrigeration and dehumidification of the passenger compartment of the whole vehicle are realized. When hot water passes from the liquid flow channel inlet 21 to the liquid flow channel outlet 22, the air in the heat exchange channel exchanges heat with the hot water, and heating of the whole vehicle is achieved.

The heat exchanger assembly realizes air temperature change through the heat convection of liquid and air; the PTC electric heater realizes the heating of air through the heat convection between the electric heating element and the air; the mode air door assembly adjusts the position of the air door through the actuator, so that air passes through the air door assemblies at different positions and is introduced into different air outlet assemblies to realize air volume distribution, the PTC electric heater is arranged after the air is exhausted from the heat exchanger assembly, and the heat exchanger assembly and the electric heating PTC assembly are arranged in parallel.

As shown in fig. 3, which is an internal structure and an operation schematic diagram of the present invention in different operation modes, in a refrigeration and dehumidification mode, air is introduced into a heat exchange air duct 15 in a flow channel housing 6 through an air blower assembly 2, and sequentially passes through a heat exchanger assembly 4 through which cold water passes and a PTC electric heater assembly 5 which does not operate, so as to cool or dehumidify the air, and then the air is guided by air door assemblies (a face blowing air door assembly 7, a defrost air door assembly 9, a foot blowing air door assembly 11, and a back blowing air door assembly 13) arranged in each air outlet channel and is conveyed to each air outlet (a face blowing air outlet 8, a defrost air outlet 10, a foot blowing air outlet 12, and a back blowing air outlet 14), so as to realize refrigeration or dehumidification of a passenger compartment.

As shown in fig. 3, in the dehumidification and heating mode of the present invention, air is introduced into the heat exchange air duct 15 of the flow channel housing 6 through the blower assembly 2, sequentially passes through the heat exchanger assembly 4 through which cold water passes, and water vapor in the air is dehumidified after meeting condensation on the surface of the heat exchanger assembly 4, and is heated by the PTC electric heater assembly 5, and then the air is guided by the air door assemblies (the face blowing air door assembly 7, the defrost air door assembly 9, the foot blowing air door assembly 11, and the rear blowing air door assembly 13) arranged in the air outlet channels and is conveyed to the air outlets (the face blowing air outlet 8, the defrost air outlet 10, the foot blowing air outlet 12, and the rear blowing air outlet 14), so as to realize heating and dehumidification of the passenger compartment.

As shown in fig. 3, in the heating mode, air is introduced into the heat exchange air duct 15 of the flow channel housing 6 through the blower assembly 2, and sequentially passes through the heat exchanger assembly 4 through which hot water passes, the air is heated through the heat exchanger assembly 4, and if the heating cannot meet the heating requirement (i.e., the temperature of the coolant detected by the heating intake water temperature sensor in fig. 5 cannot reach the preset temperature), the air needs to be heated for the second time through the working PTC electric heater assembly 5, and then is conveyed to each air outlet (the blowing surface air outlet 8, the defrosting air outlet 10, the blowing foot air outlet 12, and the post-blowing air outlet 14) through the guidance of the air door assemblies (the blowing surface air door assembly 7, the defrosting air door assembly 9, the blowing foot air door assembly 11, and the post-blowing air door assembly 13) arranged in each air outlet channel, so as to realize the heating of the passenger compartment.

In this embodiment, in the heating mode, air is introduced into the heat exchange air duct 15 of the flow channel housing 6 through the blower assembly 2, and may be heated only through the heat exchanger assembly 4 through which hot water passes (at this time, the PTC electrical heating assembly 5 is not started), or heated only through the PTC electrical heater assembly 5 (at this time, a heating water pump associated with the heat exchanger assembly 4 is not started, so that the cooling liquid cannot enter the heat exchanger assembly 4).

On the other hand, in the heating mode, air is introduced into the flow channel housing 6 through the blower assembly 2, and sequentially passes through the heat exchanger assembly 4 through which hot water passes, the air is heated through the heat exchanger assembly 4, at this time, if the heating can meet the heating requirement (namely, when the temperature of the cooling liquid detected by the heating water inlet temperature sensor in fig. 5 can reach the preset temperature), the air passes through the PTC electric heater assembly 5 which does not work, and is then conveyed to each air port (the blowing surface air outlet 8, the defrosting air outlet 10, the blowing foot air outlet 12 and the post-blowing air outlet 14) through the guidance of the air door assemblies (the blowing surface air door assembly 7, the defrosting air door assembly 9, the blowing foot air door assembly 11 and the post-blowing air door assembly 13) arranged in each air outlet channel, so as to realize the heating of the passenger compartment.

In this embodiment, in the passenger compartment ventilation mode, the blower assembly 2 drives the airflow to enter the heat exchange air duct 15 from the air inlet, and the airflow passes through the heat exchanger assembly 4 and the PTC electrical heating assembly 5, so as to realize the passenger compartment ventilation. At this time, the PTC electrical heating assembly 5 is not started; the heating water pump related to the heat exchanger assembly 4 is not started, so that the cooling liquid cannot enter the heat exchanger assembly 4, and the air flow only enters the passenger compartment to ventilate the passenger compartment.

In order to achieve these functions, it is necessary that the cooling fluid introduced into the heat exchanger assembly 4 be either cooled or hot water. Referring to fig. 5, in this embodiment, a three-way water valve is arranged between a coolant outlet end of the heat exchanger assembly 4, the battery cooler giller and the water heating PTC electrical heating assembly, the three-way water valve is a one-inlet two-outlet valve, wherein a water inlet end a of the three-way water valve is communicated with a water outlet end of the heat exchanger assembly 4, a water outlet end B of the three-way water valve is communicated with the water heating PTC electrical heating assembly, a water outlet end C of the three-way water valve is communicated with a coolant inlet end of the battery cooler giller, the coolant outlet end of the battery cooler giller and the water outlet end of the water heating PTC electrical heating assembly are both connected to a water inlet side of a water pump, and the water outlet side of the water pump is connected to a water inlet side of the heat exchanger assembly; in addition, the connection relationship between the battery cooler and the existing compressor, condenser, cooling fan, electronic expansion valve, etc. is similar to the prior art. By means of the control of the three-way water valve, the outlet water of the heat exchanger assembly enters the water heating PTC electric heating assembly to be heated or is cooled by the battery cooler, so that hot water and cold water can be introduced into the heat exchanger assembly, and an evaporator assembly and a temperature air door in the prior art can be eliminated.

As shown in fig. 6, when the passenger compartment needs heating, the water pump is started, and after the liquid is heated by the water heating PTC electric heating assembly, the liquid flows into the heat exchange core through the water pump, flows out to the three-way water valve through the hot air core of the heat exchanger assembly, and flows back to the water heating PTC electric heating assembly through the port B of the three-way water valve. As shown in fig. 7, when refrigeration is needed, the water pump is started, the compressor is started, the cooling fan is started, the cooling liquid (hot water) is cooled by the battery cooler and then becomes cold water, the cold water is pumped into the warm air core body of the heat exchanger assembly through the water pump, and the cold air is sent to the passenger compartment through the blower assembly, so that refrigeration is achieved. And cold water flows out of the warm air core body and flows back to the battery cooler Chiller through a port C of the three-way water valve for circulating refrigeration. Similarly, when dehumidification is needed, as shown in fig. 7, when refrigeration is needed, the water pump is started, the compressor is started, the cooling fan is started, cooling liquid (hot water) is cooled by the battery cooler and then becomes cold water, the cold water is pumped into the warm air core body of the heat exchanger assembly through the water pump, and cold air is sent to the passenger compartment through the air blower assembly to realize dehumidification. In the dehumidification and cooling modes, the direction of the cooling liquid in the air conditioning system is consistent with that of the refrigerant, and the difference is that the cooling temperature of the battery cooler chiller on the cooling liquid in the cooling mode is lower than that of the battery cooler chiller in the dehumidification mode or the initial heating mode.

The above scheme of this embodiment, it has cancelled the commonly used evaporimeter assembly in the air-conditioning case, only has the warm braw core of a heat exchanger assembly. The warm air core body of the heat exchanger assembly can realize heating, dehumidification and cooling of air through the change of the water temperature flowing inside.

In addition, in the embodiment, in order to realize the miniaturized air-conditioning box, a temperature air door in the traditional air-conditioning box is omitted, and the temperature change of the air outlet is realized by controlling the water temperature of the warm air core body of the heat exchanger assembly and the PTC electric heater.