1. A wire controller for a floor heating air conditioner comprises at least one outdoor unit, a plurality of water modules and a plurality of floor heating coils, wherein the water modules are combined and then respectively connected with the floor heating coils and the outdoor unit; each water module is in communication connection with the outdoor unit, and the wire controller is in communication connection with each water module respectively;

when the line controller is started, the line controller is respectively communicated with the water modules, collects the quantity of all the water modules and controls the water modules with the first percentage of the quantity of all the water modules to be started;

the first ratio is in the range of 0.5-1.

2. The line controller of claim 1, wherein the line controller collects system addresses of the water modules and arranges them in order;

when the wire controller is started for the first time, the water modules with the first proportion, which are positioned at the front end or the rear end of the series of system addresses, are controlled to be started, and the starting time of each water module is timed.

3. The line controller according to claim 2, wherein when the line controller is not started for the first time, the water modules with the first ratio and the shorter startup time are controlled to be started, and the startup time of each water module is accumulated;

and when the water modules with the same starting time length appear in the water module starting control, controlling the water modules with smaller or larger system addresses to be started preferentially.

4. The line controller according to claim 3, wherein the water modules respectively detect return water temperatures thereof;

the line controller acquires the return water temperature of each water module at regular time, and calculates the average return water temperature of the return water temperature of each water module in a starting state;

setting a variable load temperature; judging whether the difference between the average return water temperature obtained at present and the average return water temperature obtained last time is greater than the variable load temperature; when the number of the water modules is larger than the first percentage, controlling to close at least one water module so that the number of the water modules in the opening state is not larger than the second percentage of the total number of the water modules;

the first duty ratio is greater than the second duty ratio.

5. The line controller of claim 4, wherein a load increment is set; when the difference between the average return water temperature obtained currently and the average return water temperature obtained last time is larger than the load-changing temperature, judging whether the difference between the average return water temperature obtained currently and the average return water temperature obtained last time is larger than the load-changing temperature plus the load-changing increment or not; if so, closing at least one water module to enable the number of the water modules in the opening state to be the minimum operation number.

6. The line controller according to claim 5, wherein when the number of the water modules that are turned on is the second percentage of the minimum operating number, the total number of the water modules, or the first percentage of the total number of the water modules, it is determined whether a difference between the average return water temperature currently obtained and the average return water temperature obtained last time is less than the varying load temperature; if the number of the water modules is judged to be the second percentage, the first percentage and the total percentage of all the water modules, at least one water module is started, and the number of the started water modules accounts for the second percentage, the first percentage and the total percentage of all the water modules.

7. The line controller according to claim 5, wherein when the number of the water modules that are turned on is the second percentage of the minimum operating number, the total number of the water modules, or the first percentage of the total number of the water modules, it is determined whether a difference between the average return water temperature currently obtained and the average return water temperature obtained last time is less than the varying load temperature; if so, starting at least one water module to enable the number of the started water modules to account for the second, first and third proportions of all the water modules;

the third ratio is greater than the first ratio.

8. The indoor unit of claim 7, wherein when the number of the opened water modules is a first ratio of the total number of the water modules and the difference between the currently obtained average return water temperature and the last obtained average return water temperature is smaller than the load-varying temperature, it is determined whether the difference between the currently obtained average return water temperature and the last obtained return water temperature is smaller than the load-varying temperature minus the load-varying incremental value; if yes, increasing and opening at least one water module to enable the number of the water modules in the opening state to be equal to the number of all the water modules.

9. The line controller according to claim 8, wherein when the number of the water modules that are turned on is all, a third ratio of all the water modules, and a second ratio of the total water modules, it is determined whether a difference between the average return water temperature currently obtained and the average return water temperature obtained last time is greater than the varying load temperature; if yes, controlling to close at least one water module, and enabling the number of the opened water modules to be the third proportion, the first proportion and the minimum number of the total water modules.

10. The line controller according to any one of claims 1 to 9, wherein the decimal average of the number of the water modules that are turned on during calculation is carried to an integer.

Background

A water supply module for ground heating air conditioner can make up for a plurality of water modules, and the maximum capacity of extension water supply module satisfies the heating demand in small and medium projects especially villa etc. than great place.

When the water supply module uses a plurality of water modules to carry out module combination, each current water module respectively with the line controller communication connection who corresponds, control it through each line controller that corresponds and open or close, to opening, closing and adjusting temperature of ground heating air conditioner control, control complicacy and can't carry out overall control to each water module, cause the energy extravagant and user experience to feel relatively poor.

Disclosure of Invention

In order to solve the problems of energy waste and poor user experience in the prior art, the invention provides the controller, which is in communication connection with the water modules respectively by utilizing the multi-split function of the controller, and performs overall control on the opening and closing of the water modules so as to achieve the purposes of system stability and energy conservation and improve the user experience.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a wire controller for a floor heating air conditioner, wherein the floor heating air conditioner comprises at least one outdoor unit, a plurality of water modules and a plurality of floor heating coils, and the water modules are combined and then respectively connected with the floor heating coils and the outdoor unit; each water module is in communication connection with the outdoor unit, and the line controller is in communication connection with each water module respectively;

when the line controller is started, the line controller is respectively communicated with the water modules, collects the quantity of all the water modules and controls the water modules with the first percentage of the quantity of all the water modules to be started;

the first ratio is in the range of 0.5-1.

In one embodiment, the line controller collects system addresses of the water modules and arranges the system addresses in order;

when the wire controller is started for the first time, the water modules with the first proportion, which are positioned at the front end or the rear end of the series of system addresses, are controlled to be started, and the starting time of each water module is timed.

In one embodiment, when the line controller is not started for the first time, the water modules with the first ratio and shorter starting time are controlled to be started, and the starting time of each water module is accumulated;

and when the water modules with the same starting time length appear in the water module starting control, controlling the water modules with smaller or larger system addresses to be started preferentially.

In one embodiment, the water modules respectively detect return water temperatures thereof;

the line controller acquires the return water temperature of each water module at regular time, and calculates the average return water temperature of the return water temperature of each water module in a starting state;

setting a variable load temperature; judging whether the difference between the average return water temperature obtained at present and the average return water temperature obtained last time is greater than the variable load temperature; when the number of the water modules is larger than the first percentage, controlling to close at least one water module so that the number of the water modules in the opening state is not larger than the second percentage of the total number of the water modules;

the first duty ratio is greater than the second duty ratio.

In one embodiment, a load change increment is set; when the difference between the average return water temperature obtained currently and the average return water temperature obtained last time is larger than the load-changing temperature, judging whether the difference between the average return water temperature obtained currently and the average return water temperature obtained last time is larger than the load-changing temperature plus the load-changing increment or not; if so, closing at least one water module to enable the number of the water modules in the opening state to be the minimum operation number.

In an embodiment, when the number of the opened water modules is the minimum operating number, the second percentage of the total number of the water modules, or the first percentage of the total number of the water modules, whether the difference between the currently acquired average return water temperature and the previously acquired average return water temperature is smaller than the variable load temperature is judged; if the number of the water modules is judged to be the second percentage, the first percentage and the total percentage of all the water modules, at least one water module is started, and the number of the started water modules accounts for the second percentage, the first percentage and the total percentage of all the water modules.

In an embodiment, when the number of the opened water modules is the minimum operating number, the second percentage of the total number of the water modules, or the first percentage of the total number of the water modules, whether the difference between the currently acquired average return water temperature and the previously acquired average return water temperature is smaller than the variable load temperature is judged; if so, starting at least one water module to enable the number of the started water modules to account for the second, first and third proportions of all the water modules;

the third ratio is greater than the first ratio.

In an embodiment, when the number of the opened water modules is a first ratio of the total number of the water modules, and the difference between the currently acquired average return water temperature and the last acquired average return water temperature is smaller than the load-changing temperature, whether the difference between the currently acquired average return water temperature and the last acquired return water temperature is smaller than the load-changing temperature minus the load-changing increment is judged; if yes, increasing and opening at least one water module to enable the number of the water modules in the opening state to be equal to the number of all the water modules.

In an embodiment, when the number of the opened water modules is all, the third ratio of all the water modules is occupied, and the second ratio of the total water modules is occupied, whether the difference between the currently acquired average return water temperature and the average return water temperature acquired last time is greater than the variable load temperature is judged; if yes, controlling to close at least one water module, and enabling the number of the opened water modules to be the third proportion, the first proportion and the minimum number of the total water modules.

In some embodiments, the decimal average of the number of the water modules is carried to an integer.

Compared with the prior art, the technical scheme of the invention has the following technical effects:

according to the wire controller for the floor heating air conditioner, the water module occupying at least the first proportion is controlled to be started to ensure the water pressure of the hot water loop when the floor heating air conditioner is started, so that the water conservancy balance of the hot water loop is ensured, the heating effect can be quickly achieved when the floor heating coil is started initially, and the user experience is improved; in addition, the balance of the flow of the water path is ensured at the initial stage of starting the floor heating air conditioner, the actual operation flow of the branch and the main pipe of the hot water loop is consistent with the design flow as much as possible, the tail end of each floor heating coil is free from obvious undercurrent and overcurrent, the heat exchange efficiency of the water path, the air conditioner heat pump system and the tail end floor heating coil is improved, and the energy is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a floor heating air conditioning system in an embodiment of a wire controller for a floor heating air conditioner of the present invention;

FIG. 2 is a flow chart of an embodiment of a drive-by-wire controller according to the present invention;

FIG. 3 is a schematic diagram of the control logic of an embodiment of a drive-by-wire controller according to the present invention;

fig. 4 is a schematic diagram of a control logic of another embodiment of a line controller according to the present invention.

Reference numerals:

1. a wire controller; 2. a floor heating coil pipe; 3. combining water modules; 31. a water module; 4. an outdoor unit; 5. a heat exchanger; 6. a water inlet pipe; 7. a water return pipe; 8. a refrigerant pipe; t is_nThe current acquired average backwater temperature; t is_n-1The average return water temperature obtained last time; a. a load-varying temperature; b. and (5) load change and increment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships that are used in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In an embodiment, referring to fig. 1, 2, 3 and 4, the invention discloses a wire controller 1 for a floor heating air conditioner. The floor heating air conditioner comprises a plurality of floor heating coils 2, a plurality of water modules 31, a heat exchanger 5 and at least one outdoor unit 4.

Each water module 31 forms a water module combination 3; each floor heating coil 2 is connected with a water module combination 3; the water module combination 3 is connected with the heat exchanger 5 to form a hot water loop. The water module combination 3 provides a channel from the heat exchanger 5 to each floor heating coil 2.

The heat exchanger 5 is connected with the outdoor unit 4 through a refrigerant pipe 8 to form a cycle of a heat pump system.

The line controller 1 is in communication connection with each water module 31 respectively, and controls each water module 31 to be turned on or turned off. Each water module 31 is in communication connection with the outdoor unit 4, and controls the outdoor unit 4 to be turned on or turned off.

When the line controller 1 is started, performing handshake communication with each water module 31 and judging whether the communication with each water module 31 is normal; if the line controller 1 judges that the communication between the line controller and each water module 31 is normal, the system addresses of the water modules 31 and the total number of the water modules 31 are collected, the water modules 31 with the first percentage of the total number of the water modules 31 are controlled to be opened, the water pressure of a hot water loop is ensured, the water conservancy balance of the hot water loop is further ensured, and the hot water in the hot water loop is circulated efficiently.

The first ratio is in the range of 0.5 to 1.

The embodiment not only ensures that the floor heating air conditioner efficiently supplies heat for rooms where the floor heating coils 2 are located at the initial starting stage, but also improves the user experience; in addition, due to the efficient circulation of the hot water loop, the heat exchange efficiency of the hot water loop and the heat pump system of the outdoor unit 4 in the heat exchanger 5 is improved, the efficiency of the floor heating air conditioner is further improved, and energy is saved.

In an embodiment, referring to fig. 1, fig. 2, fig. 3 and fig. 4, when the line controller 1 is powered on, it obtains the system address of each water module 31 and sorts the system addresses after determining that the communication connection with each water module 31 is normal.

Then, whether the line controller 1 is started up for the first time is judged; when the line controller 1 is started for the first time, the water module 31 with the first ratio at the front end or the rear end of the sequence of each system address is controlled to be started, and the starting time length of each started water module 31 is timed.

When the line controller 1 is not started for the first time, the water modules 31 with the first percentage smaller in starting time duration are controlled to be started, and the starting time duration of each water module 31 is accumulated.

When the water modules 31 with the same power-on duration appear in the power-on control of the water modules 31, the water modules 31 with smaller or larger system addresses are preferentially started.

Preferably, the system addresses of the water modules 31 are arranged in a descending order, and the water module 31 with the first ratio of the smaller system address at the front end is controlled to be started when the line controller 1 is started for the first time.

Preferably, when the line controller 1 is not started for the first time, the water module 31 with the first proportion and the shorter starting time duration is controlled to be started; when each water module 31 with shorter startup time comprises a plurality of water modules 31 with equal startup time, the line controller 1 controls the water module 31 with a smaller system address to be started preferentially; when the water modules 31 with the shorter startup duration have the water modules 31 with the same startup duration and the number of the water modules 31 with the shorter startup duration exceeds the first percentage of the total number of the water modules 31, the line controller 1 controls the water modules 31 with the smaller system address to be started preferentially.

The drive-by-wire 1 of this embodiment ensures the operating rate of each water module 31, preventing a certain water module 31 from failing or being blocked due to non-opening for a long time.

In an embodiment, referring to fig. 1, 2, 3 and 4, each water module 31 includes a water inlet pipe 6 and a water return pipe 7, and the temperature of each water return pipe 7 is cyclically detected to obtain the water return temperature of each water module 31.

The line controller 1 obtains the return water temperature of each water module 31 after controlling each water module 31 to be opened, and calculates the average return water temperature of the return water temperatures of each opened water module 31.

And setting a timer and judging whether the timer finishes timing.

When the timer finishes timing, the line controller 1 acquires the return water temperature of each opened water module 31 again, and calculates the average return water temperature of the return water temperature of each opened water module 31.

Setting a variable load temperature a; when the line controller 1 controls the water module 31 with the first proportion to be opened, the currently acquired average return water temperature T is judged_nAnd the average return water temperature T obtained last time_n-1Whether the difference is greater than the load variation temperature a; if so, at least one water module 31 is turned off so that the number of water modules 31 in the on state is not greater than a second fraction of the total water modules 31. The second duty ratio is less than the first duty ratio.

The line controller 1 of this embodiment reduces according to the rate of fall of return water temperature, and the control reduces the opening rate of water module 31, reduces the consumption when satisfying the heat supply demand, the energy can be saved.

In one embodiment, referring to fig. 1, 2, 3 and 4, a variable load increment b is set; when the line controller 1 controls the water module 31 with the first ratio to be opened, and the average return water temperature T obtained currently_nAnd the average return water temperature T obtained last time_n-1When the difference is greater than the variable load temperature a, the currently acquired average backwater temperature T is judged_nAnd the average return water temperature T obtained last time_n-1Whether the difference is greater than the sum of the variable load temperature a and the variable load increment b; when the current average backwater temperature T is obtained_nAnd the average return water temperature T obtained last time_n-1When the difference is greater than the sum of the variable load temperature a and the variable load increment b, closing at least one water module 31 to enable the number of the water modules 31 in the opening state to be the minimum opening number; when the current average backwater temperature T is obtained_nAnd the average return water temperature T obtained last time_n-1When the difference is greater than the load change temperature a and less than the sum of the load change temperature a and the load change increment b, the at least one water module 31 is turned off such that the number of water modules 31 in the on state is equal to a second percentage of the total number of water modules 31.

When the reduction rate of the return water temperature is further reduced, the line controller 1 of the embodiment controls to further reduce the opening number of the water modules 31, which is beneficial to energy conservation.

Of course, the line controller 1 may obtain all the return water temperatures when obtaining the return water temperatures of the water modules 31, and only the average return water temperature is calculated for the return water temperatures of the opened water modules 31. Or only the return water temperature of the opened water module 31 may be obtained, and the average return water temperature may be calculated.

Preferably, the number of the water modules 31 of the water module combination 3 is not more than 6, and the minimum opening number of the water modules 31 is 1. The first proportion is 50%; the second percentage is 25%. When the number of the total water modules 31 is an odd number, the line controller 1 controls the water modules 31 of 50% of the number of the total water modules 31 plus 1 to be turned on when turning on the machine.

In one embodiment, referring to fig. 1, 2 and 3, the water module is turned on31 is a first ratio of the total number of water modules 31, and the currently acquired average return water temperature T_nAnd the average return water temperature T obtained last time_n-1When the difference is less than the load change temperature a, all the water modules 31 are turned on.

In one embodiment, referring to fig. 1, 2 and 4, when the number of water modules 31 that are turned on is a first ratio of the total number of water modules 31, the average water return temperature T is currently obtained_nAnd the average return water temperature T obtained last time_n-1When the difference is less than the load change temperature a, at least one water module 31 is additionally started, so that the number of the water modules 31 in the starting state is not less than the third percentage of the number of all the water modules 31.

The third ratio is greater than the first ratio.

In one embodiment, referring to fig. 1, 2 and 4, when the number of water modules 31 that are turned on is a first ratio of the total number of water modules 31, the average water return temperature T is currently obtained_nAnd the average return water temperature T obtained last time_n-1When the difference is less than the variable load temperature a, the currently acquired average backwater temperature T is continuously judged_nAnd the average return water temperature T obtained last time_n-1Whether the difference is less than the load-varying temperature a minus the load-varying increment b; when the judgment result is yes, increasing and opening at least one water module 31, and enabling the number of the water modules 31 in the opening state to be equal to the number of all the water modules 31; and if not, increasing to open at least one water module 31 to enable the number of the water modules 31 in the open state to be a third ratio of the number of all the water modules 31.

Preferably, the third ratio is 75%.

In an embodiment, referring to fig. 1, fig. 2 and fig. 3, in the operation process of the floor heating air conditioner, when the line controller 1 controls the opening number of the water modules 31 to be the minimum opening number or the second ratio of the total number of the water modules 31 to the number of the opened water modules 31, the timer finishes timing, obtains the average water return temperature of the opened water modules 31, and judges the current average water return temperature and the average water return temperature T obtained last time_n-1Whether the difference is less than the variable load temperature a; if the temperature is less than the variable load temperature a, at least one of the two is startedThe individual water modules 31 make the number of water modules 31 turned on a second ratio, the first ratio, of the number of total water modules 31.

In an embodiment, referring to fig. 1, 2 and 4, in the operation process of the floor heating air conditioner, when the line controller 1 controls the opening number of the water modules 31 to be the minimum opening number, or the second percentage of the total number of the water modules 31 to be the number of the opened water modules 31, or the third percentage of the total number of the water modules 31 to be the number of the opened water modules 31, the timer finishes timing, obtains the average return water temperature of the opened water modules 31, and judges the current average return water temperature and the average return water temperature T obtained last time_n-1Whether the difference is less than the variable load temperature a; and if the load change temperature is lower than the load change temperature a, starting at least one water module 31 to enable the number of the started water modules 31 to be the second proportion, the first proportion and the total number of the water modules 31.

In an embodiment, referring to fig. 1, fig. 2 and fig. 3, in the operation process of the floor heating air conditioner, when the line controller 1 controls the opening number of the water modules 31 to be all open, the timer finishes timing, the average return water temperature of the open water modules 31 is obtained, and the current average return water temperature and the average return water temperature T obtained last time are determined_n-1Whether the difference is greater than the load variation temperature a; if the judgment is yes, at least one water module 31 is closed so that the number of the opened water modules 31 is the first ratio of the total number of the water modules 31.

In an embodiment, referring to fig. 1, fig. 2 and fig. 4, in the operation process of the floor heating air conditioner, when the line controller 1 controls the opening number of the water modules 31 to be fully opened or the number of the opened water modules 31 to be a third ratio of the total number of the water modules 31, the timer finishes timing, obtains the average return water temperature of the opened water modules 31, and judges the current average return water temperature and the average return water temperature T obtained last time_n-1Whether the difference is greater than the load variation temperature a; and if the variable load temperature is higher than the variable load temperature a, closing at least one water module 31 to enable the number of the opened water modules 31 to be the third ratio and the first ratio of the total number of the water modules 31.

In one embodiment, the value range of the variable load temperature a is 1-5 ℃; the value range of the variable load increment b is 1-5 ℃. Further preferably, the value of the variable load temperature a is 1 ℃; the variable load increment b is 1 DEG C

In one embodiment, the decimal numbers that occur when calculating the second, first and third fractions of the total number of water modules 31 are all carried to integers.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.