Air conditioner control method and device, air conditioner and storage medium

Abstract

The invention discloses an air conditioner control method and device, an air conditioner and a storage medium, and relates to the technical field of air conditioners, and the air conditioner control method comprises the steps that when the air conditioner is in a total heat recovery operation mode, water tank temperature information and electromagnetic valve opening degree information of all indoor unit electromagnetic valves are detected; and circulating refrigerant information is determined according to the water tank temperature information and the electromagnetic valve opening degree information, and refrigerant control over the air conditioner is conducted according to the circulating refrigerant information. In this way, the circulating refrigerant information, namely the condition of the circulating refrigerant amount, is determined based on the temperature of the water tank and the opening degree of the electromagnetic valve in the full-recovery operation mode, so that the heat recovery mode operation is more reliable through self-adaptive refrigerant adjustment; and the capacity and the energy efficiency of refrigerating and heating water are improved by matching the optimal operation refrigerant quantity.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner control method, an air conditioner, and a storage medium. Background Art

[0002] The multi-split one-to-many heat recovery system is equipped with air-conditioning indoor units and hot water tanks. The system operation scenarios are complex, and the requirements for refrigerant circulation volume are different in different operation modes. When operating in cooling + hot water mode, for full heat recovery operation with small cooling demand, the system circulates more refrigerant, resulting in system T2 temperature and exhaust temperature exhaust, excessive supercooling, and lower cooling and hot water production capacity. As the number of refrigeration and air-conditioning indoor units turned on increases, the heat recovery unit will be converted to partial heat recovery. In fact, a large amount of circulating refrigerant is required to maintain stable operation of the system. However, under the current circumstances, the amount of circulating refrigerant cannot be flexibly adjusted.

[0003] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present application is to provide an air conditioner control method, device, air conditioner and storage medium, aiming to solve the technical problem that the amount of circulating refrigerant cannot be flexibly adjusted.

[0005] To achieve the above-mentioned purpose, the present application proposes an air conditioner control method, which is applied to an air conditioner, wherein the air conditioner comprises an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, wherein the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, wherein the hot water module comprises a hot water tank, an indoor unit solenoid valve is arranged between each air conditioner indoor unit and the air conditioner outdoor unit, and an outdoor unit solenoid valve is arranged on the condenser of the air conditioner outdoor unit;

[0006] The air conditioner control method comprises:

[0007] When the air conditioner is in a full heat recovery operation mode, detecting water tank temperature information and solenoid valve opening information of each indoor unit solenoid valve; and

[0008] The circulating refrigerant information is determined according to the water tank temperature information and the solenoid valve opening information, and the refrigerant control of the air conditioner is performed according to the circulating refrigerant information.

[0009] Optionally, when the air conditioner is in the full heat recovery operation mode, before the step of detecting the water tank temperature information and the solenoid valve opening information of each indoor unit solenoid valve, the step further includes:

[0010] Detecting the water tank temperature and condensation temperature of the hot water tank, and calculating the functional requirements of the air conditioner and the water tank;

[0011] determining temperature condition information according to the water tank temperature and the condensation temperature;

[0012] Determine energy requirement information based on the energy requirement inside the air conditioner and the energy requirement inside the water tank; and

[0013] A heat recovery operation mode of the air conditioner is determined according to the temperature condition information and the energy demand condition information.

[0014] Optionally, the air conditioner further comprises a reversing device, the reversing device being used to control the flow direction of the refrigerant, and after the step of determining the heat recovery operation mode of the air conditioner according to the temperature condition information and the energy demand condition information, the step further comprises:

[0015] When the heat recovery operation mode of the air conditioner is a full heat recovery mode, closing the external unit solenoid valve and adjusting the reversing device so that the refrigerant does not flow through the condenser of the external unit of the air conditioner; and

[0016] When the heat recovery operation mode of the air conditioner is a partial heat recovery mode, the external unit solenoid valve is opened, and the reversing device is adjusted so that the refrigerant flows through the condenser of the external unit of the air conditioner.

[0017] Optionally, the step of determining circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information includes:

[0018] Calculate the current superheat and the current subcooling using the water tank temperature information;

[0019] comparing the current superheat with a target superheat, and comparing the current subcooling with the subcooling information; and

[0020] The circulating refrigerant information is determined according to the comparison result and the solenoid valve opening information.

[0021] Optionally, the step of determining the circulating refrigerant information according to the comparison result and the solenoid valve opening information includes:

[0022] Determining the current opening of each internal machine solenoid valve according to the solenoid valve opening information;

[0023] Comparing the current opening with the upper opening value and the lower opening value of the internal machine solenoid valve to obtain an opening comparison result; and

[0024] The circulating refrigerant information is determined according to the comparison result and the opening comparison result.

[0025] Optionally, the air conditioner outdoor unit further includes a condenser solenoid valve, and the step of controlling the refrigerant of the air conditioner according to the circulating refrigerant information includes:

[0026] When the circulating refrigerant information indicates that the circulating refrigerant amount is excessive, controlling the air conditioner to operate in a full heat recovery mode, adjusting the outdoor unit solenoid valve to a target opening, closing the condenser solenoid valve, and storing the refrigerant in the condenser of the air conditioner outdoor unit; and

[0027] During the target time period, when the supercooling and superheating of the air conditioner meet the refrigerant excess exit condition, the external unit solenoid valve and the condenser solenoid valve are closed.

[0028] Optionally, the step of controlling the refrigerant of the air conditioner according to the circulating refrigerant information includes:

[0029] When the circulating refrigerant information indicates that the circulating refrigerant is insufficient, controlling the air conditioner to operate in a partial heat recovery mode, closing the outdoor unit solenoid valve, opening the condenser solenoid valve, and releasing the refrigerant in the outdoor unit of the air conditioner; and

[0030] During the target time period, when the supercooling and superheating of the air conditioner meet the refrigerant shortage exit condition, the external unit solenoid valve and the condenser solenoid valve are closed.

[0031] In addition, to achieve the above-mentioned purpose, the present application also proposes an air conditioner control device, the air conditioner control device comprising:

[0032] An operation detection module, used to detect water tank temperature information and solenoid valve opening information of each indoor unit solenoid valve when the air conditioner is in a full heat recovery operation mode;

[0033] The refrigerant control module is used to determine the circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information, and to perform refrigerant control of the air conditioner according to the circulating refrigerant information.

[0034] In addition, to achieve the above objectives, the present application also proposes an air conditioner, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the air conditioner control method described above.

[0035] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the air conditioner control method described above are implemented.

[0036] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the air conditioner control method described above are implemented.

[0037] One or more technical solutions proposed in this application have at least the following technical effects:

[0038] The solution of the present invention detects the water tank temperature information and the solenoid valve opening information of each indoor solenoid valve when the air conditioner is in the full heat recovery operation mode; and determines the circulating refrigerant information based on the water tank temperature information and the solenoid valve opening information, and performs the refrigerant control of the air conditioner based on the circulating refrigerant information. In this way, the circulating refrigerant information, that is, the amount of circulating refrigerant, is determined based on the water tank temperature and the opening of the solenoid valve in the full recovery operation mode, so that the heat recovery mode operation can be more reliable through adaptive refrigerant regulation, and the optimal operating refrigerant amount is matched to improve the energy efficiency of refrigeration and hot water production. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0041] Figure 1 A flowchart of the first embodiment of the air conditioner control method of the present application is provided;

[0042] Figure 2 A schematic diagram of a system structure provided for an embodiment of an air conditioner control method of the present application;

[0043] Figure 3 A flow chart of the second embodiment of the air conditioner control method of the present application;

[0044] Figure 4 This is a schematic diagram of the module structure of the air conditioner control device according to an embodiment of the present application;

[0045] Figure 5 Schematic diagram of the device structure of the hardware operating environment involved in the air conditioner control method in the embodiment of the present application.

[0046] Description of Figure Numbers:

[0047]

[0048]

[0049] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0051] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0052] The main solution of the embodiment of the present application is: when the air conditioner is in full heat recovery operation mode, the water tank temperature information and the solenoid valve opening information of each indoor unit solenoid valve are detected; and the circulating refrigerant information is determined according to the water tank temperature information and the solenoid valve opening information, and the refrigerant control of the air conditioner is performed according to the circulating refrigerant information.

[0053] In this embodiment, for the convenience of description, the following description is made by taking the identification of the air conditioner as the execution subject.

[0054] Since the existing multi-split one-to-many heat recovery system is equipped with air-conditioning indoor units and hot water tanks, the system operation scenario is complex, and the demand for refrigerant circulation volume is different in different operation modes. When operating in the cooling + hot water making mode, for full heat recovery operation with small cooling demand, the system circulates more refrigerant, resulting in the system T2 temperature and exhaust temperature exhaust, and excessive supercooling, resulting in lower cooling and hot water making capacities. As the number of refrigeration and air-conditioning indoor units turned on increases, the heat recovery unit will be converted to partial heat recovery. In fact, a large amount of circulating refrigerant is required to maintain the stable operation of the system. However, under the current circumstances, the amount of circulating refrigerant cannot be flexibly adjusted.

[0055] The present application provides a solution, through which the circulating refrigerant information, that is, the amount of circulating refrigerant, is determined based on the water tank temperature and the opening of the solenoid valve in the full recovery operation mode. Therefore, through adaptive refrigerant adjustment, the heat recovery mode operation can be made more reliable in different modes, and the optimal operating refrigerant amount is matched to improve the cooling and hot water production capacity and energy efficiency.

[0056] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, an air conditioner, etc. The following takes an air conditioner as an example to illustrate this embodiment and the following embodiments.

[0057] Based on this, the embodiment of the present application provides an air conditioner control method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the air conditioner control method of the present application.

[0058] In this embodiment, the air conditioner control method includes steps S10 to S20:

[0059] Step S10, when the air conditioner is in a full heat recovery operation mode, detecting water tank temperature information and solenoid valve opening information of each indoor unit solenoid valve;

[0060] It should be noted that, refer to Figure 2 , in the solution of this embodiment, is defined as follows: Q c : Air conditioner internal function needs; Q w : Functional requirements in the water tank; MVI valve: external machine solenoid valve (main circuit electronic expansion valve); EVX A / B / C valve: internal machine solenoid valve (air conditioning branch circuit electronic expansion valve); EVX D valve: water tank branch circuit electronic expansion valve; EV1 valve: air conditioning side low pressure solenoid valve; T4: external environment temperature; Tk: water tank temperature; T P : Exhaust temperature of the outdoor unit; T 2B_W : Water tank cold outlet temperature; Tc: Condensation temperature; △T 2B : Actual subcooling (condensing temperature - cooling outlet temperature); △T P : Actual superheat (exhaust temperature - condensing temperature); EXV_step: opening of the air conditioner indoor unit valve. (Take the maximum opening of each air conditioner indoor unit valve); EV2: Condenser solenoid valve (external unit condenser side solenoid valve).

[0061] It should be understood that the scheme of this embodiment proposes a refrigerant control method for the heat recovery mode of the multi-split heat recovery system for refrigeration + hot water production operation, which adjusts the main valve of the outdoor unit and the solenoid valve on the condenser side of the outdoor unit through the exhaust superheat and subcooling, thereby satisfying the adaptive adjustment of the circulating refrigerant amount, solving the conflicting demand problem of different circulating refrigerant amounts in the full heat recovery and partial heat recovery systems, and improving the energy efficiency of hot water production and refrigeration capabilities.

[0062] In the specific implementation, before determining that the air conditioner is in full heat recovery operation mode, it is necessary to judge and adjust the air conditioner operation mode, and then monitor the water tank temperature information and the solenoid valve opening of each indoor unit solenoid valve to determine and adjust the refrigerant amount.

[0063] In a feasible implementation manner, in order to accurately determine whether the heat recovery operation mode of the air conditioner is partial heat recovery or full heat recovery, before step S10, it also includes: detecting the water tank temperature and the condensing temperature of the hot water tank, and calculating the functional demand of the air conditioner and the functional demand of the water tank; determining temperature condition information according to the water tank temperature and the condensing temperature; determining energy demand condition information by combining the functional demand of the air conditioner and the functional demand of the water tank; and determining the heat recovery operation mode of the air conditioner according to the temperature condition information and the energy demand condition information.

[0064] It should be noted that the unit operates in cooling + hot water mode, and the detection system water tank temperature T K , condensation temperature T C Get temperature condition information and calculate the energy required by the air conditioner c And the function in the water tank needs Q w The energy demand is obtained by the energy demand condition information. Finally, the heat recovery operation mode of the air conditioner is determined according to the temperature condition information and the energy demand condition information.

[0065] In a feasible embodiment, in order to accurately perform corresponding operation adjustments after determining the heat recovery operation mode, the air conditioner also includes a reversing device, and the reversing device is used to control the flow direction of the refrigerant. The step of determining the heat recovery operation mode of the air conditioner according to the temperature condition information and the energy demand condition information also includes: when the heat recovery operation mode of the air conditioner is a full heat recovery mode, the outdoor unit solenoid valve is closed, and the reversing device is adjusted so that the refrigerant does not flow through the condenser of the outdoor unit of the air conditioner; and when the heat recovery operation mode of the air conditioner is a partial heat recovery mode, the outdoor unit solenoid valve is opened, and the reversing device is adjusted so that the refrigerant flows through the condenser of the outdoor unit of the air conditioner.

[0066] It should be understood that when TK<50 and Tc<50 and Qc / Qw<3 are satisfied at the same time, the unit operates in full heat recovery mode, the main valve MVI of the outdoor unit condenser is closed, the three-way shut-off valves A and B are together, and the C line is closed; no refrigerant flows through the outdoor unit condenser; the water tank is used as the system condenser to heat water, and the air conditioner indoor unit is used as the evaporator for cooling.

[0067] In the specific implementation, when TK≥50 or Tc≥50 or Qc / Qw≥3 is satisfied, the unit operates in partial heat recovery mode, the main valve MVI of the outdoor unit condenser is opened, and the three-way shut-off valves A and BC are respectively connected to allow refrigerant to flow through the outdoor unit condenser; the water tank and the outdoor unit condenser serve as the system condenser, and the air conditioner indoor unit serves as the evaporator for cooling.

[0068] Step S20, determining circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information, and performing refrigerant control of the air conditioner according to the circulating refrigerant information.

[0069] It should be noted that after determining the water tank temperature information and the solenoid valve opening information, the circulating refrigerant information, that is, the amount of circulating refrigerant, is determined according to the superheat and subcooling. After determining the circulating refrigerant information, corresponding refrigerant control is performed according to the specific circulating refrigerant amount.

[0070] In a feasible implementation, in order to perform corresponding operations when the refrigerant is in excess, step S20 includes: when the circulating refrigerant information indicates that the amount of circulating refrigerant is in excess, controlling the air conditioner to operate in full heat recovery mode, adjusting the outdoor unit solenoid valve to a target opening, closing the condenser solenoid valve, and storing the refrigerant in the condenser of the air conditioner outdoor unit; and within a target time period, when the supercooling and superheating of the air conditioner meet the refrigerant excess exit condition, closing the outdoor unit solenoid valve and the condenser solenoid valve.

[0071] It should be understood that under the heat recovery system, the full heat recovery mode is operated, the outdoor unit condenser is closed and no refrigerant is circulated, and the outdoor unit condenser is used to store excess refrigerant; the solenoid valve EV2 on the outdoor unit condenser side remains closed, and the main valve MVI is opened and maintains the target opening of 50P.

[0072] In the specific implementation, if it is judged that within the target time period, that is, every 5 minutes, the subcooling degree △T2B is less than the target subcooling degree T2B_cool-2; or the superheating degree △TP is greater than the target superheating degree TP_heat+2; or the actual opening degree EXV_step of the air conditioner indoor unit is greater than the lower limit value of the sub-valve EXV_min+20, then the storage of refrigerant is stopped, the main valve MVI is closed, the electromagnetic valve EV2 on the condenser side of the outdoor unit is kept closed, and the hot water refrigerant control is exited. Otherwise, the refrigerant control with more circulating refrigerant is maintained.

[0073] In a feasible implementation manner, in order to perform corresponding control when the refrigerant is insufficient, step S20 includes: when the circulating refrigerant information indicates that the circulating refrigerant is insufficient, controlling the air conditioner to operate in a partial heat recovery mode, closing the outdoor unit solenoid valve, opening the condenser solenoid valve, and releasing the refrigerant in the outdoor unit of the air conditioner; and within the target time period, when the supercooling and superheating of the air conditioner meet the refrigerant shortage exit conditions, closing the outdoor unit solenoid valve and the condenser solenoid valve.

[0074] It should be noted that in the heat recovery system, when the full heat recovery mode is running, the outdoor unit condenser is closed and no refrigerant is circulating. Since the outdoor unit condenser stores refrigerant, the system circulation refrigerant is insufficient, so the refrigerant stored in the air conditioner needs to be released, and the following actions are performed. The main valve MVI state is turned to closed, and the solenoid valve EV2 on the outdoor unit condenser side is opened, so that the outdoor unit condenser is connected to the low pressure, so that the refrigerant in the outdoor unit condenser is released.

[0075] It should be understood that if the supercooling degree △T2B ≥ the target supercooling degree T2B_cool+2 or the superheating degree △TP ≤ the target superheating degree TP_heat-22 or the actual opening degree EXV_step of the air conditioner indoor unit < the lower limit value of the sub-valve EXV_max-20 within every 5 minutes of the target time period, the refrigerant release is stopped, the electromagnetic valve EV2 on the condenser side of the outdoor unit is closed, the main valve MVI remains closed, and the cooling + heating water refrigerant control is exited. Otherwise, the refrigerant control with less circulating refrigerant is maintained.

[0076] This embodiment provides an air conditioner control method, when the air conditioner is in full heat recovery operation mode, the water tank temperature information and the solenoid valve opening information of each indoor unit solenoid valve are detected; and the circulating refrigerant information is determined according to the water tank temperature information and the solenoid valve opening information, and the refrigerant control of the air conditioner is performed according to the circulating refrigerant information. In this way, the circulating refrigerant information, that is, the amount of circulating refrigerant, is determined based on the water tank temperature and the opening of the solenoid valve in the full recovery operation mode, so that the heat recovery mode operation can be more reliable in different modes through adaptive refrigerant regulation, and the optimal operating refrigerant amount is matched to improve the energy efficiency of cooling and hot water production.

[0077] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 , step S10 includes steps S101 to S103:

[0078] Step S101, calculating the current superheat and the current subcooling using the water tank temperature information;

[0079] It should be noted that the detection system operates the water tank cold outlet temperature T 2B_W , exhaust temperature T P And the condensation temperature T C , calculate the current supercooling △T 2B and the current superheat △T P .

[0080] Step S102, comparing the current superheat with the target superheat, and comparing the current subcooling with the subcooling information;

[0081] It should be understood that firstly, the current supercooling ΔT is compared 2B and target supercooling T 2B_cool Size; Reheat △T P and target superheat T P_heat size.

[0082] Step S103, determining circulating refrigerant information according to the comparison result and the solenoid valve opening information.

[0083] It should be understood that after the solenoid valve opening information is determined, the circulating refrigerant information is determined according to different classifications of the results in combination with the comparison of subcooling and superheating.

[0084] In a feasible implementation, in order to accurately determine the circulating refrigerant information, step S103 includes: determining the current opening of each indoor solenoid valve based on the solenoid valve opening information; comparing the current opening with the upper limit opening value and the lower limit opening value of the indoor solenoid valve to obtain an opening comparison result; and determining the circulating refrigerant information based on the comparison result and the opening comparison result.

[0085] In a specific implementation, firstly, the actual opening degree EXV_step of the indoor unit of the air conditioner and the upper and lower limits EXV_max / min of the sub-valve are determined according to the solenoid valve opening degree information.

[0086] It should be noted that if the conditions of △T2B≥T2B_cool, △TP≤TP_heat, and EXV_step≤EXV_min are met at the same time, it is judged that the unit has too much circulating refrigerant, and enters the cooling + hot water refrigerant control, storing the excess refrigerant in the outdoor unit condenser to reduce the amount of circulating refrigerant;

[0087] It should be understood that if the conditions of △T2B<T2B_cool, △TP>TP_heat, and EXV_step≥EXV_max are met at the same time, it is judged that the circulating refrigerant of the unit is too small, and the cooling + hot water refrigerant control is entered, and the refrigerant stored in the outdoor unit condenser is released to increase the circulating refrigerant amount;

[0088] In specific implementation, if other conditions are met, the full heat recovery mode cooling + hot water normal control mode is maintained.

[0089] It should be noted that the target subcooling degree T2B_cool and the target superheat degree TP_heat are related to the temperature of the water tank Tk, and the relationship is shown in Table 1.

[0090] Table 1

[0091]

[0092] The upper limit values ​​of the air conditioning valve EXV_max and EXV_min are related to the ambient temperature T4 and the water tank temperature Tk. The relationship is shown in Table 2 and Table 3:

[0093] Table 2

[0094]

[0095]

[0096] Table 3

[0097]

[0098] This embodiment calculates the current superheat and the current subcooling by using the water tank temperature information; compares the current superheat with the target superheat, and compares the current subcooling with the subcooling information; and determines the circulating refrigerant information according to the comparison result and the solenoid valve opening information. In this way, in order to solve the refrigerant mismatch problem of full heat recovery and partial heat recovery operation in a multi-split heat recovery system, the exhaust superheat and subcooling are used to adjust the main valve of the external unit and the solenoid valve of the external unit condenser, so as to meet the adaptive adjustment of the circulating refrigerant amount of the system.

[0099] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the air conditioner control method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0100] This application also provides an air conditioner control device, please refer to Figure 4 , the air conditioner control device comprises:

[0101] The operation detection module 10 is used to detect the water tank temperature information and the solenoid valve opening information of each indoor unit solenoid valve when the air conditioner is in the full heat recovery operation mode.

[0102] The refrigerant control module 20 is used to determine circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information, and perform refrigerant control of the air conditioner according to the circulating refrigerant information.

[0103] This embodiment detects the water tank temperature information and the solenoid valve opening information of each indoor solenoid valve when the air conditioner is in the full heat recovery operation mode; and determines the circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information, and performs refrigerant control of the air conditioner according to the circulating refrigerant information. In this way, the circulating refrigerant information, that is, the amount of circulating refrigerant, is determined based on the water tank temperature and the opening of the solenoid valve in the full recovery operation mode, so that the heat recovery mode operation can be more reliable in different modes through adaptive refrigerant regulation, and the optimal operating refrigerant amount is matched to improve the energy efficiency of cooling and hot water production.

[0104] In one embodiment, the operation detection module 10 is also used to detect the water tank temperature and condensation temperature of the hot water tank, and calculate the functional demand of the air conditioner and the functional demand of the water tank; determine temperature condition information according to the water tank temperature and the condensation temperature; determine energy demand condition information by combining the functional demand of the air conditioner and the functional demand of the water tank; and determine the heat recovery operation mode of the air conditioner according to the temperature condition information and the energy demand condition information.

[0105] In one embodiment, the operation detection module 10 is also used to close the outdoor unit solenoid valve and adjust the reversing device so that the refrigerant does not flow through the condenser of the outdoor unit of the air conditioner when the heat recovery operation mode of the air conditioner is a full heat recovery mode; and to open the outdoor unit solenoid valve and adjust the reversing device so that the refrigerant flows through the condenser of the outdoor unit of the air conditioner when the heat recovery operation mode of the air conditioner is a partial heat recovery mode.

[0106] In one embodiment, the refrigerant control module 20 is also used to calculate the current superheat and the current subcooling based on the water tank temperature information; compare the current superheat with the target superheat, and compare the current subcooling with the subcooling information; and determine the circulating refrigerant information based on the comparison result and the solenoid valve opening information.

[0107] In one embodiment, the refrigerant control module 20 is also used to determine the current opening of each indoor solenoid valve based on the solenoid valve opening information; compare the current opening with the upper limit opening value and the lower limit opening value of the indoor solenoid valve to obtain an opening comparison result; and determine the circulating refrigerant information based on the comparison result and the opening comparison result.

[0108] In one embodiment, the refrigerant control module 20 is also used to control the air conditioner to operate in a full heat recovery mode, adjust the outdoor unit solenoid valve to a target opening, close the condenser solenoid valve, and store the refrigerant in the condenser of the air conditioner outdoor unit when the circulating refrigerant information indicates that the amount of circulating refrigerant is excessive; and close the outdoor unit solenoid valve and the condenser solenoid valve when the subcooling and superheating of the air conditioner meet the refrigerant excess exit condition within a target time period.

[0109] In one embodiment, the refrigerant control module 20 is also used to control the air conditioner to operate in a partial heat recovery mode, close the outdoor unit solenoid valve, open the condenser solenoid valve, and release the refrigerant in the outdoor unit of the air conditioner when the circulating refrigerant information indicates that the circulating refrigerant is insufficient; and within the target time period, when the supercooling and superheating of the air conditioner meet the refrigerant shortage exit condition, close the outdoor unit solenoid valve and the condenser solenoid valve.

[0110] The air conditioner control device provided by the present application adopts the air conditioner control method in the above embodiment, which can solve the technical problem that the amount of circulating refrigerant cannot be flexibly adjusted. Compared with the prior art, the beneficial effects of the air conditioner control device provided by the present application are the same as the beneficial effects of the air conditioner control method provided by the above embodiment, and other technical features in the air conditioner control device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0111] The present application provides an air conditioner, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the air conditioner control method in the above-mentioned embodiment one.

[0112] Reference below Figure 5 , which shows a schematic diagram of the structure of an air conditioner suitable for implementing the embodiment of the present application. The air conditioner in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The air conditioner shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0113] like Figure 5 As shown, the air conditioner may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the air conditioner are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the air conditioner to communicate with other devices wirelessly or wired to exchange data. Although the figure shows an air conditioner with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided alternatively.

[0114] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0115] The air conditioner provided by the present application adopts the air conditioner control method in the above embodiment, which can solve the technical problem that the amount of circulating refrigerant cannot be flexibly adjusted. Compared with the prior art, the beneficial effects of the air conditioner provided by the present application are the same as the beneficial effects of the air conditioner control method provided by the above embodiment, and other technical features in the air conditioner are the same as the features disclosed in the method of the previous embodiment, which will not be described in detail here.

[0116] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0117] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0118] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the air conditioner control method in the above-mentioned embodiment.

[0119] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0120] The computer-readable storage medium may be included in the air conditioner, or may exist independently without being installed in the air conditioner.

[0121] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the air conditioner, the air conditioner: detects the water tank temperature information and the solenoid valve opening information of each indoor unit solenoid valve when the air conditioner is in the full heat recovery operation mode; and determines the circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information, and performs refrigerant control of the air conditioner according to the circulating refrigerant information.

[0122] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0123] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0124] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0125] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned air conditioner control method, and can solve the technical problem that the amount of circulating refrigerant cannot be flexibly adjusted. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the air conditioner control method provided in the above-mentioned embodiment, and will not be described in detail here.

[0126] The present application also provides a computer program product, including a computer program, which implements the steps of the air conditioner control method as described above when executed by a processor.

[0127] The computer program product provided by this application can solve the technical problem of not being able to flexibly adjust the amount of circulating refrigerant. Compared with the prior art, the beneficial effects of the computer program product provided by this application are the same as the beneficial effects of the air conditioner control method provided by the above embodiment, which will not be repeated here.

[0128] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An air conditioner control method, characterized in that: The air conditioner control method is applied to an air conditioner, the air conditioner comprises an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, the hot water module comprises a hot water tank, an indoor unit solenoid valve is arranged between each air conditioner indoor unit and the air conditioner outdoor unit, and the air conditioner outdoor unit condenser is provided with an outdoor unit solenoid valve; The air conditioner control method comprises: When the air conditioner is in a full heat recovery operation mode, detecting water tank temperature information and solenoid valve opening information of each indoor unit solenoid valve; and The circulating refrigerant information is determined according to the water tank temperature information and the solenoid valve opening information, and the refrigerant control of the air conditioner is performed according to the circulating refrigerant information.

2. The method according to claim 1, characterized in that When the air conditioner is in the full heat recovery operation mode, the step of detecting the water tank temperature information and the solenoid valve opening information of each indoor unit solenoid valve also includes: Detecting the water tank temperature and condensation temperature of the hot water tank, and calculating the functional requirements of the air conditioner and the water tank; determining temperature condition information according to the water tank temperature and the condensation temperature; Determine energy requirement information based on the energy requirement inside the air conditioner and the energy requirement inside the water tank; and A heat recovery operation mode of the air conditioner is determined according to the temperature condition information and the energy demand condition information.

3. The method according to claim 2, characterized in that The air conditioner further includes a reversing device, the reversing device is used to control the flow direction of the refrigerant, and after the step of determining the heat recovery operation mode of the air conditioner according to the temperature condition information and the energy demand condition information, the step further includes: When the heat recovery operation mode of the air conditioner is a full heat recovery mode, closing the external unit solenoid valve and adjusting the reversing device so that the refrigerant does not flow through the condenser of the external unit of the air conditioner; and When the heat recovery operation mode of the air conditioner is a partial heat recovery mode, the external unit solenoid valve is opened, and the reversing device is adjusted so that the refrigerant flows through the condenser of the external unit of the air conditioner.

4. The method according to claim 1, characterized in that The step of determining the circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information comprises: Calculate the current superheat and the current subcooling using the water tank temperature information; comparing the current superheat with a target superheat, and comparing the current subcooling with the subcooling information; and The circulating refrigerant information is determined according to the comparison result and the solenoid valve opening information.

5. The method according to claim 4, characterized in that The step of determining the circulating refrigerant information according to the comparison result and the solenoid valve opening information comprises: Determining the current opening of each internal machine solenoid valve according to the solenoid valve opening information; Comparing the current opening with the upper opening value and the lower opening value of the internal machine solenoid valve to obtain an opening comparison result; and The circulating refrigerant information is determined according to the comparison result and the opening comparison result.

6. The method according to claim 1, characterized in that The air conditioner outdoor unit further includes a condenser solenoid valve, and the step of controlling the refrigerant of the air conditioner according to the circulating refrigerant information includes: When the circulating refrigerant information indicates that the circulating refrigerant amount is excessive, controlling the air conditioner to operate in a full heat recovery mode, adjusting the outdoor unit solenoid valve to a target opening, closing the condenser solenoid valve, and storing the refrigerant in the condenser of the air conditioner outdoor unit; and During the target time period, when the supercooling and superheating of the air conditioner meet the refrigerant excess exit condition, the external unit solenoid valve and the condenser solenoid valve are closed.

7. The method according to claim 1, characterized in that The step of controlling the refrigerant of the air conditioner according to the circulating refrigerant information comprises: When the circulating refrigerant information indicates that the circulating refrigerant is insufficient, controlling the air conditioner to operate in a partial heat recovery mode, closing the outdoor unit solenoid valve, opening the condenser solenoid valve, and releasing the refrigerant in the outdoor unit of the air conditioner; and During the target time period, when the supercooling and superheating of the air conditioner meet the refrigerant shortage exit condition, the external unit solenoid valve and the condenser solenoid valve are closed.

8. An air conditioner control device, characterized in that: The device comprises: An operation detection module, used to detect water tank temperature information and solenoid valve opening information of each indoor unit solenoid valve when the air conditioner is in a full heat recovery operation mode; The refrigerant control module is used to determine the circulating refrigerant information according to the water tank temperature information and the solenoid valve opening information, and to perform refrigerant control of the air conditioner according to the circulating refrigerant information.

9. An air conditioner, characterized in that: The air conditioner comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the air conditioner control method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 7 are implemented.

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