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

Abstract

The application discloses an air conditioner control method and device, an air conditioner and a storage medium. The air conditioner control method comprises the following steps: after the air conditioner is started in a heating mode, a first electromagnetic valve is opened when the temperature of the inlet end of the heat exchange flow path of the outdoor heat exchanger triggers the opening condition of the first electromagnetic valve; after the first electromagnetic valve is opened, the first interval duration between the current closing of the first electromagnetic valve and the next opening of the first electromagnetic valve is determined according to the temperature of the inlet end of the heat exchange flow path when the first electromagnetic valve is closed, and the first electromagnetic valve is opened after the first interval duration; and / or, the first duration of the next opening of the first electromagnetic valve is determined according to the temperature of the inlet end of the heat exchange flow path when the first electromagnetic valve is closed. The application can adjust the interval time and / or the duration of the opening of the first electromagnetic valve according to the temperature of the inlet end of the heat exchange flow path of the outdoor heat exchanger, and then defrost the outdoor heat exchanger in time and effectively when the outdoor heat exchanger is frosted.

Description

TECHNICAL FIELD

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

[0002] The azeotropic refrigerant is a refrigerant composed of two or more than two substances. Due to the different boiling points of the components, one component evaporates first and the other component evaporates later during evaporation, and the reverse occurs during condensation, resulting in temperature change during phase change at constant pressure, that is, the temperature glide phenomenon of non-azeotropic refrigerant during evaporation or condensation. When the air conditioner is in heating mode, due to the temperature glide phenomenon, the temperature difference between the refrigerant inlet and outlet of the outdoor heat exchanger is too large, that is, the temperature of the refrigerant inlet is low and the temperature of the refrigerant outlet is high, which causes the refrigerant inlet to easily frost and freeze, resulting in a decrease in the working efficiency of the outdoor heat exchanger. SUMMARY

[0003] The main purpose of the embodiments of the present application is to provide an air conditioner control method and device, an air conditioner and a storage medium, which aims to improve the technical problem that the outdoor heat exchanger is prone to frost and ice due to the temperature glide of non-azeotropic mixed refrigerant in the prior art.

[0004] The embodiments of the present application provide an air conditioner control method for controlling an air conditioner, the air conditioner comprising a compressor and an outdoor heat exchanger, a bypass branch being connected between the compressor and the outdoor heat exchanger, the outdoor heat exchanger having at least one heat exchange flow path, a first electromagnetic valve being arranged on the bypass branch, the air conditioner using a non-azeotropic mixed refrigerant, the air conditioner control method comprising:

[0005] After the air conditioner is started in heating mode, the first electromagnetic valve is opened when the temperature at the inlet end of the heat exchange flow path of the outdoor heat exchanger triggers the opening condition of the first electromagnetic valve;

[0006] After the first electromagnetic valve is opened, the first interval duration between the next time the first electromagnetic valve is opened and the current time the first electromagnetic valve is closed is determined according to the temperature at the inlet end of the heat exchange flow path when the first electromagnetic valve is closed, and the first electromagnetic valve is opened after the first interval duration is elapsed;

[0007] And / or, the first duration for the next time the first electromagnetic valve is opened is determined according to the temperature at the inlet end of the heat exchange flow path when the first electromagnetic valve is closed, and the first duration is opened when the first electromagnetic valve is opened next time.

[0008] In some embodiments of the present application, the first interval duration between the next time the first electromagnetic valve is opened and the current time the first electromagnetic valve is closed is determined according to the temperature at the inlet end of the heat exchange flow path when the first electromagnetic valve is closed, comprising:

[0009] determining a first adjustment amount according to the inlet temperature of the heat exchange flow path and an outdoor temperature;

[0010] determining the first interval duration according to a first base duration and the first adjustment amount.

[0011] In some embodiments of the present application, the determining of the first adjustment amount according to the inlet temperature of the heat exchange flow path and the outdoor temperature comprises:

[0012] when the inlet temperature of the heat exchange flow path is greater than a first temperature and less than a second temperature, determining the first adjustment amount as 0;

[0013] when the inlet temperature of the heat exchange flow path is less than or equal to the first temperature or the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, determining a first adjustment coefficient according to the outdoor temperature;

[0014] determining the first adjustment amount according to the first adjustment coefficient and the inlet temperature of the heat exchange flow path.

[0015] In some embodiments of the present application, the determining of the first duration for next time opening the first electromagnetic valve according to the inlet temperature of the heat exchange flow path when the first electromagnetic valve is closed comprises:

[0016] determining a second adjustment amount according to the inlet temperature of the heat exchange flow path and an outdoor temperature;

[0017] determining the first duration according to a second base duration and the second adjustment amount.

[0018] In some embodiments of the present application, the determining of the second adjustment amount according to the inlet temperature of the heat exchange flow path and the outdoor temperature comprises:

[0019] when the inlet temperature of the heat exchange flow path is greater than a first temperature and less than a second temperature, determining the second adjustment amount as 0;

[0020] when the inlet temperature of the heat exchange flow path is less than or equal to the first temperature or the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, determining a second adjustment coefficient according to the outdoor temperature;

[0021] determining the second adjustment amount according to the second adjustment coefficient and the inlet temperature of the heat exchange flow path.

[0022] In some embodiments of the present application, the opening of the first electromagnetic valve after the inlet temperature of the heat exchange flow path of the outdoor heat exchanger triggers the first electromagnetic valve opening condition comprises:

[0023] When the inlet end temperature of the heat exchange flow path is determined to be less than or equal to the first temperature, it is determined that the inlet end temperature of the heat exchange flow path triggers the first electromagnetic valve opening condition, and the first electromagnetic valve is opened.

[0024] In some embodiments of the present application, the air conditioner control method further comprises:

[0025] When the outdoor temperature is greater than or equal to the set temperature, the first electromagnetic valve is closed.

[0026] In some embodiments of the present application, an air conditioner control device is also provided, comprising:

[0027] An acquisition module is configured to acquire an inlet end temperature of a heat exchange flow path of an outdoor heat exchanger;

[0028] A determination module is configured to determine whether the inlet end temperature of the heat exchange flow path triggers a first electromagnetic valve opening condition;

[0029] A control module is configured to, after the air conditioner is started in a heating mode, open the first electromagnetic valve when the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger triggers the first electromagnetic valve opening condition; determine, after the first electromagnetic valve is opened, a first interval duration between the next time the first electromagnetic valve is opened and the current time the first electromagnetic valve is closed according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve is closed, and open the first electromagnetic valve after the first interval duration; and determine a first duration for the next time the first electromagnetic valve is opened according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve is closed, and open the first electromagnetic valve for the first duration.

[0030] In some embodiments of the present application, an air conditioner is also provided, comprising a compressor, an outdoor heat exchanger, a memory, and a processor, a bypass branch is connected between the compressor and the outdoor heat exchanger, the bypass branch is used to deliver refrigerant in the compressor to a heat exchange branch of the outdoor heat exchanger, a first electromagnetic valve is arranged on the bypass branch and can control the bypass branch to be turned on and closed, the air conditioner uses non-azeotropic mixed refrigerant, the memory stores a computer program, and the processor is used to run the computer program in the memory to execute the steps in the above-mentioned air conditioner control method.

[0031] In some embodiments of the present application, a storage medium is also provided, the storage medium stores a computer program, and the computer program is loaded and executed by a processor to execute the steps in the above-mentioned air conditioner control method.

[0032] The embodiment of the present application provides an air conditioner control method, device, air conditioner and storage medium, the air conditioner control method is used for controlling the air conditioner, a bypass branch is communicated between a compressor and an outdoor heat exchanger, and after a first electromagnetic valve on the bypass branch is triggered to open, the opening interval time and / or the continuous time length of the first electromagnetic valve are adjusted according to the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger after the first electromagnetic valve is closed, so that the outdoor heat exchanger is defrosted in time and effectively when the outdoor heat exchanger is frosted due to the non-azeotropic refrigerant temperature glide, and meanwhile, the first electromagnetic valve is prevented from being opened too much to affect the heating performance of the air conditioner when the outdoor heat exchanger does not need to be defrosted. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0034] Figure 1 The flowchart of the air conditioner control method of one embodiment of the present application;

[0035] Figure 2 The structural schematic diagram of the air conditioner control device of one embodiment of the present application;

[0036] Figure 3 The structural schematic diagram of the air conditioner of one embodiment of the present application;

[0037] Figure 4 The connection structure schematic diagram of the compressor and the outdoor heat exchanger of the air conditioner of one embodiment of the present application.

[0038] The drawings show that: 10, air conditioner control device; 100, acquisition module; 200, judgment module; 300, control module; 400, outdoor heat exchanger; 410, bypass branch; 411, first electromagnetic valve; 500, compressor; 601, processor; 602, memory; 603, power supply; 604, input unit. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0040] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the direction indications will also change accordingly.

[0041] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, if the present application has a description of "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. For example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0043] As Figures 1-4 As shown in the figure, the present application provides an air conditioner control method for controlling an air conditioner, the air conditioner comprising a compressor 500 and an outdoor heat exchanger 400, a bypass branch 410 connected between the compressor 500 and the outdoor heat exchanger 400, at least one heat exchange flow path provided in the outdoor heat exchanger 400, the bypass branch 410 for delivering refrigerant in the compressor 500 to the outdoor heat exchanger 400, a first electromagnetic valve 411 provided on the bypass branch 410 and capable of controlling the bypass branch 410 to be turned on and off, and the air conditioner using non-azeotropic mixed refrigerant, the air conditioner control method comprising:

[0044] S100, after the air conditioner is started in heating mode, the first electromagnetic valve 411 is opened after the temperature at the inlet end of the heat exchange flow path of the outdoor heat exchanger 400 triggers the opening condition of the first electromagnetic valve 411.

[0045] Wherein, when the first electromagnetic valve 411 is opened, the bypass branch 410 is conducted, and the high-temperature refrigerant in the compressor 500 can enter the outdoor heat exchanger 400 through the bypass branch 410; when the first electromagnetic valve 411 is closed, the bypass branch 410 is closed, and the high-temperature refrigerant in the compressor 500 cannot enter the outdoor heat exchanger 400 through the bypass branch 410.

[0046] Wherein, the inlet end temperature of the heat exchange flow path is generally the temperature near the inlet of the heat exchange flow path, such as the temperature sensor can be arranged at the first U-shaped pipe section of the heat exchange pipe close to the inlet, and then the inlet end temperature of the heat exchange flow path is obtained.

[0047] Generally, when the inlet end temperature of the heat exchange flow path is less than or equal to 0℃, the inlet end temperature of the heat exchange flow path triggers the first electromagnetic valve 411 opening condition.

[0048] Wherein, due to the characteristics of the non-azeotropic refrigerant, when the temperature glide occurs, the tube temperature of the entire heat exchange flow path generally gradually increases from the inlet to the outlet, that is, the inlet end temperature of the heat exchange flow path is the lowest, therefore, it is necessary to determine whether the outdoor heat exchanger 400 needs to be defrosted according to the inlet end temperature of the heat exchange flow path.

[0049] S200, after the first electromagnetic valve 411 is opened, according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, the first interval duration of the next time the first electromagnetic valve 411 is opened and the current time the first electromagnetic valve 411 is closed is determined, and the first electromagnetic valve 411 is opened after the first interval duration.

[0050] Wherein, after the air conditioner is started in heating mode, the inlet end temperature of the heat exchange flow path triggers the first opening of the first electromagnetic valve 411, and after the first electromagnetic valve 411 is opened for the first time, the opening time of the first electromagnetic valve 411 is determined according to the inlet end temperature of the heat exchange flow path, that is, the first interval duration of the next time the first electromagnetic valve 411 is opened and the current time the first electromagnetic valve 411 is closed is determined according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed.

[0051] Wherein, according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, the first interval duration of the next time the first electromagnetic valve 411 is opened and the current time the first electromagnetic valve 411 is closed is determined, generally, the lower the inlet end temperature of the heat exchange flow path, the shorter the first interval duration, and the higher the inlet end temperature of the heat exchange flow path, the longer the first interval duration.

[0052] And / or, S300, according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, the first duration of the next time the first electromagnetic valve 411 is opened is determined, and the first duration is opened when the first electromagnetic valve 411 is opened next time.

[0053] The longer the first duration is, the longer the opening duration of the first electromagnetic valve is, and the defrosting effect on the outdoor heat exchanger is better. Therefore, the opening duration of the first electromagnetic valve 411 can be adaptively adjusted according to the frosting condition of the outdoor heat exchanger.

[0054] The control method of the air conditioner can simultaneously adopt S200 and S300, or only one of S200 and S300 can be adopted according to the situation.

[0055] It can be understood that the air conditioner control method connects a bypass branch 410 between the compressor 500 and the outdoor heat exchanger 400, and adjusts the interval time and / or duration of the opening of the first electromagnetic valve 411 according to the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger 400 after the opening condition of the first electromagnetic valve 411 on the bypass branch 410 is triggered, so as to timely and effectively defrost the outdoor heat exchanger 400 when the outdoor heat exchanger 400 is frosted, and avoid opening the first electromagnetic valve too much when the outdoor heat exchanger 400 does not need to be defrosted, thereby affecting the heating performance of the air conditioner.

[0056] In some embodiments, S200 determines the first interval duration between the next opening of the first electromagnetic valve 411 and the current closing of the first electromagnetic valve 411 according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, including:

[0057] S210 determines the first adjustment amount according to the inlet end temperature of the heat exchange flow path and the outdoor temperature.

[0058] The first adjustment amount is determined according to the outdoor temperature and the inlet end temperature of the heat exchange flow path, and can directly affect the first interval duration.

[0059] S220 determines the first interval duration according to the first basic duration and the first adjustment amount.

[0060] The air conditioner is in the initial stage of operation within a preset duration after the air conditioner is started in the heating mode, and the temperature glide phenomenon of the non-azeotropic refrigerant has less influence on the coil of the outdoor heat exchanger 400. Therefore, the first basic duration is generally longer, and is generally 10 minutes.

[0061] The first interval duration is , the first basic duration is , and the first adjustment amount is h; then the first interval duration .

[0062] The first interval duration is , and the first adjustment amount is h. The unit of the first interval duration is minute.

[0063] In some embodiments, S210 determines the first adjustment amount according to the inlet end temperature of the heat exchange flow path and the outdoor temperature, including:

[0064] S211, when the temperature at the inlet end of the heat exchange flow path is greater than the first temperature and less than the second temperature, it is determined that the first adjustment amount is 0.

[0065] The first temperature is generally 0°C, and the second temperature is 4.

[0066] Specifically, when the temperature when the first electromagnetic valve 411 is closed is greater than 0°C and less than 4°C, such as 2°C, it is determined that the first adjustment amount is 0, that is, h = 0, and the first interval duration is the first basic duration.

[0067] S212, when the temperature at the inlet end of the heat exchange flow path is less than or equal to the first temperature or the temperature at the inlet end of the heat exchange flow path is greater than or equal to the second temperature, the first adjustment coefficient is determined according to the outdoor temperature.

[0068] The first adjustment coefficient is , The value of the first adjustment coefficient is related to the outdoor temperature and the temperature at the inlet end of the heat exchange flow path. Generally, the controller of the air conditioner stores a plurality of outdoor temperature ranges, and each temperature range corresponds to a different first adjustment coefficient. For the same outdoor temperature range, the temperature at the inlet end of the heat exchange flow path less than or equal to the first temperature and the temperature at the inlet end of the heat exchange flow path greater than or equal to the second temperature correspond to different first adjustment coefficients.

[0069] The corresponding relationship table of the first adjustment coefficient and the outdoor temperature can be referred to the following table:

[0070]

[0071] The first adjustment coefficient is The first adjustment coefficient is The temperature at the inlet end of the heat exchange flow path of the outdoor heat exchanger 400, The outdoor temperature, The first temperature, The second temperature; generally, = 0°C, 4°C.

[0072] S213, the first adjustment amount is determined according to the first adjustment coefficient and the temperature at the inlet end of the heat exchange flow path.

[0073] The first adjustment amount is determined according to the first adjustment coefficient and the temperature at the inlet end of the heat exchange flow path, which includes:

[0074] When the temperature at the inlet end of the heat exchange flow path is less than or equal to the first temperature, the first difference between the temperature at the inlet end of the heat exchange flow path and the first temperature is determined, and the first adjustment amount is determined according to the first difference and the first adjustment coefficient.

[0075] Specifically, i.e. .

[0076] When the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, a second difference between the inlet temperature of the heat exchange flow path and the second temperature is determined, and a first adjustment amount is determined according to the second difference and a first adjustment coefficient.

[0077] Specifically: i.e. .

[0078] For example, when the outdoor temperature is 5°C and the inlet temperature of the heat exchange flow path is -1°C, = -1, h = -1 * | -1 - 0 | = -1, and the first interval duration is: = 10 - 1 = 9, i.e. the first interval duration is 9 minutes.

[0079] For example, when the outdoor temperature is -5°C and the inlet temperature of the heat exchange flow path is 6°C, = 1, h = 1 * | 6 - 4 | = 2, and the first interval duration is: = 10 + 2 = 12, i.e. the first interval duration is 12 minutes.

[0080] In some embodiments, when it is determined that the first interval duration is less than the first standard duration, the first electromagnetic valve 411 is fully opened, and after the first interval duration, the inlet temperature of the heat exchange flow path is determined again, and the above steps are repeatedly executed. For example, the first standard duration is 0.5 minutes, the first duration is 1 minute, and when it is determined that the first interval duration is 0.4 minutes, the first electromagnetic valve 411 is continuously fully opened, and after 1 minute, the inlet temperature of the heat exchange flow path is determined again to determine the first interval duration. If it is continuously determined that the first interval duration is 0.4 minutes, the above steps are repeatedly executed.

[0081] Generally, the first standard duration and the first duration are time data pre-stored in the air conditioner controller.

[0082] In some embodiments, the air conditioner control method further comprises:

[0083] In some embodiments, S300, according to the inlet temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, a first duration for next time opening the first electromagnetic valve 411 is determined, comprising:

[0084] S310, according to the inlet temperature of the heat exchange flow path and the outdoor temperature, a second adjustment amount is determined.

[0085] The second adjustment amount is determined according to the outdoor temperature and the inlet temperature of the heat exchange flow path, and can directly affect the first duration for opening the first electromagnetic valve 411.

[0086] S320, determining the first duration according to the second base duration and the second adjustment amount.

[0087] Generally, the second base duration is shorter, and is generally 20 seconds.

[0088] The first duration is , the second base duration is , and the second adjustment amount is m; then the first duration is .

[0089] The first adjustment coefficient is , and the second adjustment coefficient is . The unit of the first adjustment coefficient and the second adjustment coefficient is second.

[0090] In some embodiments, S310, determining the second adjustment amount of the second duration according to the inlet temperature of the heat exchange flow path and the outdoor temperature, comprises:

[0091] S311, when the inlet temperature of the heat exchange flow path is greater than the first temperature and less than the second temperature, determining the second adjustment amount as 0.

[0092] Generally, the first temperature is 0℃, and the second temperature is 4℃.

[0093] That is, when the temperature when the first electromagnetic valve 411 is closed is greater than 0℃ and less than 4℃, such as 2℃, the second adjustment amount is determined as 0, that is, m=0, and the first duration is the second base duration.

[0094] S312, when the inlet temperature of the heat exchange flow path is less than or equal to the first temperature or the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, determining the second adjustment coefficient according to the outdoor temperature.

[0095] The second adjustment coefficient is , The value of the second adjustment coefficient is related to the outdoor temperature and the inlet temperature of the heat exchange flow path. Generally, the controller of the air conditioner stores a plurality of outdoor temperature ranges, and each temperature range corresponds to a different second adjustment coefficient. For the same outdoor temperature range, the inlet temperature of the heat exchange flow path less than or equal to the first temperature and the inlet temperature of the heat exchange flow path greater than or equal to the second temperature correspond to different second adjustment coefficients.

[0096] The corresponding relationship table of the second adjustment coefficient and the outdoor temperature can refer to the following table:

[0097]

[0098] The first adjustment coefficient is , the inlet temperature of the heat exchange flow path of the outdoor heat exchanger 400 is , and the outdoor temperature is . is the first temperature, is the second temperature; generally, = 0℃, 4℃

[0099] S313, determining the second adjustment amount according to the second adjustment coefficient and the inlet temperature of the heat exchange flow path.

[0100] Wherein, determining the second adjustment amount according to the second adjustment coefficient and the inlet temperature of the heat exchange flow path comprises:

[0101] When the inlet temperature of the heat exchange flow path is less than or equal to the first temperature, determining a first difference between the inlet temperature of the heat exchange flow path and the first temperature, and then determining the second adjustment amount according to the first difference and the second adjustment coefficient.

[0102] Specifically, that is, .

[0103] When the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, determining a second difference between the inlet temperature of the heat exchange flow path and the second temperature, and then determining the second adjustment amount according to the second difference and the second adjustment coefficient.

[0104] Specifically, that is, .

[0105] For example, when the outdoor temperature is 5℃ and the inlet temperature of the heat exchange flow path is -1℃, = 1, m = 1 * |-1-0| = 1, so the first duration is: = 20+1 = 21, that is, the first duration is 21 seconds.

[0106] For example, when the outdoor temperature is -5℃ and the inlet temperature of the heat exchange flow path is 6℃, = -1, m = -1 * |-1-0| = -1, so the first duration is: = 20-1 = 19, that is, the first duration is 19 seconds.

[0107] In some embodiments, when it is determined that the first duration is less than the second standard duration, the first electromagnetic valve 411 is closed, and after a second duration interval, the first duration is determined again according to the inlet temperature of the heat exchange flow path, and if the first duration is determined again to be less than the second standard duration, the above steps are repeated. For example, the second standard duration is 3 seconds, the second duration is 1 minute, when the first duration is determined to be 2 seconds, the first electromagnetic valve 411 is closed, and after 1 minute interval, the first duration is determined again according to the inlet temperature of the heat exchange flow path, and if the first duration is determined again to be 2 seconds, the above steps are repeated.

[0108] The second standard time length and the second time length are time data pre-stored in the controller of the air conditioner.

[0109] That is, the opening first duration of the first electromagnetic valve 411 is continuously adjusted by the inlet end temperature of the heat exchange flow path and the outdoor temperature, which can ensure that the coil of the outdoor heat exchanger 400 avoids frosting, and at the same time, when the high-temperature refrigerant of the compressor 500 does not need to be turned on for a long time, the opening first duration of the first electromagnetic valve 411 is shortened, thereby avoiding affecting the heating performance of the air conditioner.

[0110] In some embodiments, S100, after the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger 400 triggers the opening condition of the first electromagnetic valve 411, the first electromagnetic valve 411 is opened, comprising:

[0111] When it is determined that the inlet end temperature of the heat exchange flow path is less than or equal to the first temperature, it is determined that the inlet end temperature of the heat exchange flow path triggers the opening condition of the first electromagnetic valve 411, and the first electromagnetic valve 411 is opened.

[0112] The first temperature is 0°C, and when the inlet end temperature of the heat exchange flow path is less than or equal to 0°C, it means that the inlet end temperature of the heat exchange flow path is at a temperature that is more prone to frosting, and thus the first electromagnetic valve 411 needs to be opened.

[0113] In some embodiments, the air conditioner control method further comprises:

[0114] S400, when the outdoor temperature is greater than or equal to the set temperature, the first electromagnetic valve 411 is closed.

[0115] The set temperature is a temperature pre-stored in the controller of the air conditioner, and the set temperature is generally consistent with the composition of the non-azeotropic refrigerant temperature. It can be understood that the minimum temperature of the non-azeotropic refrigerant temperature glide can be determined according to the composition of the non-azeotropic refrigerant, and after the minimum temperature of the non-azeotropic refrigerant temperature glide is determined, the set temperature can be determined.

[0116] For example, the minimum temperature of the non-azeotropic refrigerant temperature glide in the air conditioner is -7°C, and the set temperature is 10°C. At this time, the minimum inlet end temperature of the heat exchange flow path is -7°C, but when the outdoor temperature is 10°C, the outdoor heat exchanger will slow down the frosting speed or not frost without opening the first electromagnetic valve.

[0117] In some embodiments, the application further provides an air conditioner control device 10, comprising an acquisition module 100, a judgment module 200 and a control module 300. The acquisition module 100 is configured to acquire an inlet temperature of a heat exchange flow path of an outdoor heat exchanger 400. The judgment module 200 is configured to judge whether the inlet temperature of the heat exchange flow path triggers a first electromagnetic valve 411 opening condition. The control module 300 is configured to, after the air conditioner is started in a heating mode, if the inlet temperature of the heat exchange flow path of the outdoor heat exchanger 400 triggers the first electromagnetic valve 411 opening condition, open the first electromagnetic valve 411 for a first set time length. The control module 300 is further configured to, after the first electromagnetic valve 411 is opened, determine a first interval time length between the next time the first electromagnetic valve 411 is opened and the current time the first electromagnetic valve 411 is closed according to the inlet temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, and open the first electromagnetic valve 411 after the first interval time length is elapsed. The control module is further configured to determine a first duration time length of the next time the first electromagnetic valve 411 is opened according to the inlet temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, and open the first electromagnetic valve 411 for the first duration time length.

[0118] The acquisition module 100 can be a temperature sensor, which is generally arranged near the inlet of the heat exchange flow path, and is configured to acquire the inlet temperature of the heat exchange flow path.

[0119] In some embodiments, the application further provides an air conditioner, which can comprise a processor 601 with one or more processing cores, a memory 602 with one or more computer readable storage media, a power supply 603 and an input unit 604, etc. The air conditioner further comprises a compressor 500 and an outdoor heat exchanger 400, and a bypass branch 410 is connected between the compressor 500 and the outdoor heat exchanger 400, the bypass branch 410 is configured to deliver refrigerant in the compressor 500 to a heat exchange branch of the outdoor heat exchanger 400, and the bypass branch 410 is provided with a first electromagnetic valve 411 which can control the bypass branch 410 to be turned on and closed. The air conditioner uses non-azeotropic mixed refrigerant, and those skilled in the art can understand that the structure of the above-mentioned air conditioner does not constitute a limitation on the air conditioner, and can comprise more or fewer components, or combine certain components, or different component arrangements. Wherein:

[0120] The processor 601 is a controller of the air conditioner, which connects various parts of the air conditioner through various interfaces and lines, executes various functions of the air conditioner and processes data by running or executing software programs and / or modules stored in the memory 602 and calling data stored in the memory 602, thereby monitoring the air conditioner as a whole. Optionally, the processor 601 can include one or more processing cores; preferably, the processor 601 can integrate an application processor 601 and a modem processor 601, wherein the application processor 601 mainly processes operating systems, user interfaces and computer programs, and the modem processor 601 mainly processes wireless communication. It can be understood that the above-mentioned modem processor 601 can also not be integrated into the processor 601.

[0121] The memory 602 can be used to store software programs and modules, and the processor 601 executes various functions and data processing by running the software programs and modules stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store operating systems, computer programs required by at least one function (such as sound playing function, image playing function, etc.), etc.; the data storage area can store data created according to the use of the server, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device. Accordingly, the memory can also include a memory controller to provide the processor 601 with access to the memory.

[0122] The air conditioner also includes a power supply 603 for supplying power to various components, and preferably the power supply 603 can be logically connected to the processor 601 through a power management system, thereby realizing functions such as management of charging, discharging and power consumption management through the power management system. The power supply can also include one or more direct current or alternating current power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, etc. Any components.

[0123] The air conditioner can also include an input unit 604, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0124] Although not shown, the air conditioner can also include a display unit, etc., which will not be described here. In particular, in the present embodiment, the processor 601 in the air conditioner will load one or more executable files corresponding to the processes of the computer programs into the memory 602 according to the following instructions, and run the computer programs stored in the memory 602 by the processor 601 to execute the following steps:

[0125] If the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger 400 triggers the opening condition of the first electromagnetic valve 411 after the air conditioner is started in the heating mode, the first electromagnetic valve 411 is opened for a first set time length;

[0126] After the first electromagnetic valve 411 is opened, the first interval time length between the next opening of the first electromagnetic valve 411 and the current closing of the first electromagnetic valve 411 is determined according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, and the first electromagnetic valve 411 is opened after the first interval time length is elapsed.

[0127] By performing the above steps, the interval time of the opening of the first electromagnetic valve 411 is adjusted according to the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger 400, and thus the defrosting of the outdoor heat exchanger 400 is timely and effectively performed when the outdoor heat exchanger 400 is frosted, and meanwhile the opening of the outdoor heat exchanger 400 is avoided to be too much when the outdoor heat exchanger 400 does not need to be defrosted, so as to affect the heating performance of the air conditioner.

[0128] Those skilled in the art can understand that all or part of the steps in any one of the above embodiments can be completed by a computer program or by a computer program controlling related hardware, which can be stored in a computer readable storage medium and loaded and executed by the processor 601.

[0129] In some embodiments, the present application also provides a storage medium storing a computer program, which is loaded and executed by a processor to perform the following steps;

[0130] If the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger 400 triggers the opening condition of the first electromagnetic valve 411 after the air conditioner is started in the heating mode, the first electromagnetic valve 411 is opened for a first set time length;

[0131] After the first electromagnetic valve 411 is opened, the first interval time length between the next opening of the first electromagnetic valve 411 and the current closing of the first electromagnetic valve 411 is determined according to the inlet end temperature of the heat exchange flow path when the first electromagnetic valve 411 is closed, and the first electromagnetic valve 411 is opened after the first interval time length is elapsed.

[0132] By performing the above steps, the interval time of the opening of the first electromagnetic valve 411 is adjusted according to the inlet end temperature of the heat exchange flow path of the outdoor heat exchanger 400, and thus the defrosting of the outdoor heat exchanger 400 is timely and effectively performed when the outdoor heat exchanger 400 is frosted, and meanwhile the opening of the outdoor heat exchanger 400 is avoided to be too much when the outdoor heat exchanger 400 does not need to be defrosted, so as to affect the heating performance of the air conditioner.

[0133] As will be appreciated by one of ordinary skill in the art, any reference to storage, memory, database or other medium can include non-volatile and / or volatile storage. Non-volatile storage can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile storage can include random access memory (RAM), or external cache memory. By way of illustration, and not limitation, RAM is available in many forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), Rambus direct memory access (RDMA), and Rambus dynamic RAM (RDRAM), etc.

[0134] The steps in the air conditioner control method of any one of the embodiments provided by the present application can be executed by the computer program stored in the storage medium, and thus the beneficial effects of the air conditioner control method of any one of the embodiments provided by the present application can be achieved. Details are described above, and thus will not be repeated here.

[0135] The specific implementation of each operation can refer to the above embodiments, and thus will not be repeated here.

[0136] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can refer to the detailed description of other embodiments above, and thus will not be repeated here.

[0137] The above is only optional embodiments of the present application, and thus does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made based on the content of the present application, is included in the patent protection scope of the present application.

Claims

1. An air conditioning control method, characterized in that, For controlling an air conditioner, the air conditioner includes a compressor and an outdoor heat exchanger, a bypass branch is connected between the compressor and the outdoor heat exchanger, the outdoor heat exchanger has at least one heat exchange flow path, the bypass branch is used to deliver refrigerant from the compressor to the heat exchange branch of the outdoor heat exchanger, a first solenoid valve is provided on the bypass branch, the air conditioner uses a non-azeotropic refrigerant mixture, and the air conditioning control method includes: After the air conditioner is turned on in heating mode, the first solenoid valve is opened after the temperature at the inlet end of the heat exchange flow path triggers the opening condition of the first solenoid valve. After the first solenoid valve is opened, the first interval between the next opening of the first solenoid valve and the current closing of the first solenoid valve is determined based on the inlet temperature of the heat exchange flow path when the first solenoid valve is closed, and the first solenoid valve is opened after the first interval has elapsed. And / or, after opening the first solenoid valve, determine the first duration for opening the first solenoid valve again based on the inlet temperature of the heat exchange flow path when the first solenoid valve is closed, and open the first solenoid valve for the first duration the next time it is opened.

2. The air conditioning control method according to claim 1, characterized in that, Based on the inlet temperature of the heat exchange flow path when the first solenoid valve is closed, determine the first interval between the next opening of the first solenoid valve and the current closing of the first solenoid valve, including: The first adjustment amount is determined based on the inlet temperature of the heat exchange flow path and the outdoor temperature; The first interval duration is determined based on the first base duration and the first adjustment amount.

3. The air conditioning control method according to claim 2, characterized in that, Based on the inlet temperature of the heat exchange flow path and the outdoor temperature, a first adjustment amount is determined, including: When the inlet temperature of the heat exchange flow path is greater than the first temperature and less than the second temperature, the first adjustment amount is determined to be 0. When the inlet temperature of the heat exchange flow path is less than or equal to the first temperature or the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, a first adjustment coefficient is determined based on the outdoor temperature. The first adjustment amount is determined based on the first adjustment coefficient and the inlet temperature of the heat exchange flow path.

4. The air conditioning control method according to claim 1, characterized in that, Based on the inlet temperature of the heat exchange flow path when the first solenoid valve is closed, determine the first duration for the next opening of the first solenoid valve, including: The second adjustment amount is determined based on the inlet temperature of the heat exchange flow path and the outdoor temperature; The first duration is determined based on the second base duration and the second adjustment amount.

5. The air conditioning control method according to claim 4, characterized in that, The second adjustment amount is determined based on the inlet temperature of the heat exchange flow path and the outdoor temperature, including: When the inlet temperature of the heat exchange flow path is greater than the first temperature and less than the second temperature, the second adjustment amount is determined to be 0. When the inlet temperature of the heat exchange flow path is less than or equal to the first temperature or the inlet temperature of the heat exchange flow path is greater than or equal to the second temperature, a second adjustment coefficient is determined based on the outdoor temperature. The second adjustment amount is determined based on the second adjustment coefficient and the inlet temperature of the heat exchange flow path.

6. The air conditioning control method according to claim 1, characterized in that, After the inlet temperature of the heat exchange flow path of the outdoor heat exchanger triggers the opening condition of the first solenoid valve, the first solenoid valve is opened, including: When it is determined that the inlet temperature of the heat exchange flow path is less than or equal to the first temperature, the inlet temperature of the heat exchange flow path is determined to trigger the opening condition of the first solenoid valve, and the first solenoid valve is opened.

7. The air conditioning control method according to claim 1, characterized in that, Air conditioning control methods also include: When the outdoor temperature is greater than or equal to the set temperature, the first solenoid valve is closed.

8. An air conditioning control device, characterized in that, For controlling an air conditioner, the air conditioner includes a compressor and an outdoor heat exchanger, a bypass branch is connected between the compressor and the outdoor heat exchanger, the outdoor heat exchanger has at least one heat exchange flow path, the bypass branch is used to deliver refrigerant from the compressor to the heat exchange branch of the outdoor heat exchanger, a first solenoid valve is provided on the bypass branch, the air conditioner uses a non-azeotropic refrigerant mixture, and the air conditioning control device includes: The acquisition module is used to acquire the inlet temperature of the heat exchange flow path of the outdoor heat exchanger; The judgment module is used to determine whether the inlet temperature of the heat exchange flow path triggers the opening condition of the first solenoid valve. The control module is configured to: after the air conditioner is turned on in heating mode, open the first solenoid valve after the inlet temperature of the heat exchange flow path of the outdoor heat exchanger triggers the opening condition of the first solenoid valve; determine a first interval between the next opening of the first solenoid valve and the current closing of the first solenoid valve based on the inlet temperature of the heat exchange flow path when the first solenoid valve is closed, and open the first solenoid valve after the first interval has elapsed; and determine a first duration for the next opening of the first solenoid valve based on the inlet temperature of the heat exchange flow path when the first solenoid valve is closed, and open the first solenoid valve for the first duration when the first solenoid valve is opened again.

9. An air conditioner, characterized in that, The air conditioner includes a compressor, an outdoor heat exchanger, a memory, and a processor. A bypass branch is connected between the compressor and the outdoor heat exchanger. The bypass branch is used to deliver refrigerant from the compressor to the heat exchange branch of the outdoor heat exchanger. A first solenoid valve is provided on the bypass branch to control the opening and closing of the bypass branch. The air conditioner uses a non-azeotropic refrigerant mixture. The memory stores a computer program. The processor is used to run the computer program in the memory to perform the steps of the air conditioning control method according to any one of claims 1-7.

10. A storage medium, characterized in that, The storage medium stores a computer program, which is executed and loaded by a processor to perform the steps of the air conditioning control method according to any one of claims 1-7.

Images