Air conditioner control method and system, medium, electronic equipment and air conditioner

Abstract

The invention relates to the technical field of air conditioners, particularly provides an air conditioner control method and system, a medium, electronic equipment and an air conditioner, and aims to solve the problem that the air conditioner cannot ensure continuous heating of an indoor unit when an outdoor unit is defrosted. In order to achieve the purpose, the air conditioner control method comprises the steps that in response to a defrosting instruction, based on control over the connection state of a first four-way valve and a second four-way valve and the opening and closing state of a first control valve and a second control valve, an outdoor unit is switched from a heating mode to a first defrosting mode or a second defrosting mode; if the first defrosting mode is started, the first outdoor unit heat exchanger conducts defrosting, and the indoor unit conducts heating continuously; and if the second defrosting mode is started, the second outdoor unit heat exchanger conducts defrosting, and the indoor unit conducts heating continuously. The effect that the indoor unit continuously heats while the outdoor unit defrosts is achieved, and the indoor temperature experience is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and specifically provides an air conditioner control method, system, medium, electronic equipment and air conditioner. Background Art

[0002] When the outdoor environment is cold and the air conditioner is used for indoor heating, it is easy for frost to form on the outdoor unit heat exchanger, which will increase energy consumption, reduce heating efficiency, and even make the air conditioner unable to work normally.

[0003] When there is a lot of frost on the outdoor unit of an existing air conditioner, the indoor unit is often switched to cooling mode, so that the outdoor unit acts as a condenser, thereby raising its temperature to achieve the purpose of defrosting; at the same time, the indoor unit fan and the indoor unit air outlet are turned off to prevent cold air from entering the room.

[0004] However, the defrosting process in the prior art usually lasts about 10 minutes, during which the indoor unit cannot heat or blow hot air, which still affects the indoor temperature perception; and when the temperature of the outdoor unit is lower, defrosting is required more frequently, and the indoor heating is frequently shut down, resulting in a very poor user experience.

[0005] Accordingly, the art requires a new air conditioner control solution to solve the above problems. Summary of the invention

[0006] In order to overcome the above-mentioned defects, the present invention is proposed to provide an air conditioner control method, system, medium, electronic device and air conditioner to solve or at least partially solve the technical problem that the air conditioner cannot ensure continuous heating of the indoor unit when the outdoor unit is defrosted.

[0007] In a first aspect, the present invention provides an air conditioner control method, wherein the air conditioner comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a first outdoor unit heat exchanger, a second outdoor unit heat exchanger and a compressor; the air conditioner is provided with a first four-way valve and a second four-way valve, a first control valve is provided on a pipeline connecting the first four-way valve to the indoor unit, and a second control valve is provided on a pipeline connecting the second four-way valve to the indoor unit, wherein the first four-way valve and the first control valve are used to jointly control the first outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the second four-way valve and the second control valve are used to jointly control the second outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the method comprises:

[0008] In response to a defrost instruction, the outdoor unit switches from a heating mode to a first defrost mode or a second defrost mode based on control of the connection states of the first four-way valve and the second four-way valve and the opening and closing states of the first control valve and the second control valve;

[0009] If the first defrost mode is turned on, the first outdoor unit heat exchanger is defrosted and the indoor unit continues to heat; if the second defrost mode is turned on, the second outdoor unit heat exchanger is defrosted and the indoor unit continues to heat.

[0010] In a technical solution of the above-mentioned air conditioner control method, when the indoor unit is in the heating mode, a refrigerant passage is formed between the exhaust port of the compressor and the indoor unit, when the first four-way valve is powered on and the first control valve is opened, a refrigerant passage is formed between the first outdoor unit heat exchanger and the air inlet of the compressor, when the first four-way valve is powered off and the first control valve is closed, a refrigerant passage is formed between the exhaust port of the compressor and the first outdoor unit heat exchanger; when the second four-way valve is powered on and the second control valve is opened, a refrigerant passage is formed between the second outdoor unit heat exchanger and the air inlet of the compressor, when the second four-way valve is powered off and the second control valve is closed, a refrigerant passage is formed between the exhaust port of the compressor and the second outdoor unit heat exchanger; the method comprises:

[0011] When the first defrost mode is turned on, the first four-way valve is powered off, the second four-way valve is powered on, the first control valve is closed, and the second control valve is opened;

[0012] When the second defrost mode is turned on, the first four-way valve is powered on, the second four-way valve is powered off, the first control valve is opened, and the second control valve is closed.

[0013] In a technical solution of the above air conditioner control method, the outdoor unit is switched from the heating mode to the first defrost mode or the second defrost mode, and the method further includes:

[0014] When the outdoor unit is in the heating mode, the first four-way valve is powered on, the second four-way valve is powered on, the first control valve is opened, and the second control valve is opened.

[0015] In a technical solution of the above air conditioner control method, the outdoor unit is further provided with a first defrost sensor and a second defrost sensor, which are respectively used to collect temperature values ​​of the first outdoor unit heat exchanger and the second outdoor unit heat exchanger; the method further includes:

[0016] Based on the temperature value data collected by the first defrost sensor and the second defrost sensor, determining whether the first outdoor unit heat exchanger and the second outdoor unit heat exchanger have reached a preset defrost temperature value;

[0017] If the first defrost sensor reaches the defrost temperature value first, the first defrost mode is turned on;

[0018] If the second defrost sensor reaches the defrost temperature value first, the second defrost mode is turned on.

[0019] In a technical solution of the above air conditioner control method, after the outdoor unit is switched from the heating mode to the first defrost mode or the second defrost mode, the method further includes:

[0020] After the first defrost mode or the second defrost mode is completed, determining whether to continue defrosting;

[0021] If yes, re-acquire the temperature value data collected by the first defrost sensor and the second defrost sensor, and return to the step of "determining whether the first outdoor unit heat exchanger and the second outdoor unit heat exchanger have reached the preset defrost temperature value based on the temperature value data collected by the first defrost sensor and the second defrost sensor";

[0022] If not, the defrosting is finished and the outdoor unit returns to the heating mode.

[0023] In a technical solution of the above air conditioner control method, the method further includes, based on controlling the connection state of the first four-way valve and the second four-way valve, making the outdoor unit operate in a cooling mode:

[0024] When the outdoor unit is in cooling mode, the first four-way valve is controlled to be de-energized, the second four-way valve is controlled to be de-energized, the first control valve is opened, and the second control valve is opened.

[0025] In a second aspect, the present invention provides an air conditioner control system, the air conditioner comprising an outdoor unit and an indoor unit, the outdoor unit comprising a first outdoor unit heat exchanger, a second outdoor unit heat exchanger and a compressor; the air conditioner is provided with a first four-way valve and a second four-way valve, a first control valve is provided on a pipeline connecting the first four-way valve to the indoor unit, and a second control valve is provided on a pipeline connecting the second four-way valve to the indoor unit, wherein the first four-way valve and the first control valve are used to jointly control the first outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the second four-way valve and the second control valve are used to jointly control the second outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the system comprises:

[0026] An instruction acquisition module is used to acquire a defrost instruction for the outdoor unit to switch from a heating mode to a first defrost mode or a second defrost mode;

[0027] The defrost control module controls the first outdoor unit heat exchanger to defrost and the indoor unit continues to heat if the first defrost mode is turned on; and controls the second outdoor unit heat exchanger to defrost and the indoor unit continues to heat if the second defrost mode is turned on.

[0028] In a third aspect, a computer-readable storage medium is provided, in which a plurality of program codes are stored, wherein the program codes are suitable for being loaded and run by a processor to execute the air conditioner control method described in any one of the technical solutions of the above-mentioned air conditioner control method.

[0029] In a fourth aspect, an electronic device is provided, which includes a processor and a memory, wherein the memory is suitable for storing multiple program codes, and the program codes are suitable for being loaded and run by the processor to execute the air conditioner control method described in any one of the technical solutions of the above-mentioned air conditioner control method.

[0030] In a fifth aspect, an air conditioner is provided, comprising an air conditioner body and the above-mentioned air conditioner control system and / or the above-mentioned electronic device.

[0031] The above one or more technical solutions of the present invention have at least one or more of the following Beneficial effects:

[0032] In the technical solution for implementing the present invention, based on the control of the connection status of the first four-way valve and the second four-way valve and the opening and closing status of the first control valve and the second control valve, the outdoor unit is switched from the heating mode to the first defrost mode or the second defrost mode, so that the indoor unit continues to heat while the outdoor unit is defrosting, thereby optimizing the indoor temperature experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In addition, similar numbers in the figures are used to represent similar components, among which:

[0034] Figure 1 is a flow chart of main steps of an air conditioner control method according to an embodiment of the present invention;

[0035] Figure 2 is a structural schematic diagram of an air conditioner according to a first embodiment of the present invention;

[0036] Figure 3 is a structural schematic diagram of an air conditioner according to a second embodiment of the present invention;

[0037] Figure 4 is a structural schematic diagram of an air conditioner according to a third embodiment of the present invention;

[0038] Figure 5 is a structural schematic diagram of an air conditioner according to a fourth embodiment of the present invention;

[0039] Figure 6 is a detailed flow chart of the steps of an air conditioner control method according to an embodiment of the present invention;

[0040] Figure 7 is a main structural block diagram of an air conditioner control system according to an embodiment of the present invention;

[0041] Figure 8 It is a main structural block diagram of an electronic device for executing the air conditioner control method of the present invention.

[0043] Reference numerals list :

[0044] 1: compressor; 2: oil separator;

[0045] 3a: first four-way valve; 3b: first outdoor unit heat exchanger; 3c: first defrost sensor; 3d: first outdoor unit electronic expansion valve; 3e: first control valve;

[0046] 4a: second four-way valve; 4b: second outdoor unit heat exchanger; 4c: second defrost sensor; 4d: second outdoor unit electronic expansion valve; 4e: second control valve;

[0047] 7: Gas-liquid separator;

[0048] 8: first indoor unit; 8a: first indoor unit electronic expansion valve; 8b: first indoor unit heat exchanger;

[0049] 9: second indoor unit; 9a: second indoor unit electronic expansion valve; 9b: second indoor unit heat exchanger;

[0050] 10: outdoor unit; 11: liquid pipe; 12: gas pipe;

[0051] 71: instruction acquisition module; 72: defrost control module;

[0052] 800: electronic device; 801: processor; 802: memory; 803: program code. DETAILED DESCRIPTION

[0053] Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0054] In the description of the present invention, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, and memories, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware, or a combination of the two. Non-temporary computer-readable storage media include any suitable medium that can store program codes, such as a magnetic disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, and the like. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The term "at least one A or B" or "at least one of A and B" has a similar meaning to "A and / or B", and may include only A, only B, or A and B. The singular terms "one" and "the" may also include plural forms.

[0055] In order to ensure that the indoor unit of the air conditioner continues to heat when the outdoor unit is defrosting, the present invention provides an air conditioner control method.

[0056] The air conditioner control method of the present invention is applied to the air conditioner. Figure 2-5 The structural diagram of the air conditioner is shown.

[0057] like Figure 2-5 As shown, the air conditioner includes an outdoor unit 10 and indoor units 8 and 9, and the outdoor unit 10 includes a first outdoor unit heat exchanger 3b, a second outdoor unit heat exchanger 4b and a compressor 1; the air conditioner is provided with a first four-way valve 3a and a second four-way valve 4a, a first control valve 3e is provided on the pipeline connecting the first four-way valve 3a to the indoor units 8 and 9, and a second control valve 4e is provided on the pipeline connecting the second four-way valve 4a to the indoor units 8 and 9, wherein the first four-way valve 3a and the first control valve 3e are used to jointly control the first outdoor unit heat exchanger 3b to be selectively connected to the air inlet or exhaust port of the compressor 1; the second four-way valve 4a and the second control valve 4e are used to jointly control the second outdoor unit heat exchanger 4b to be selectively connected to the air inlet or exhaust port of the compressor 1.

[0058] For example, in the outdoor unit 10, the first outdoor heat exchanger 3b and the second outdoor heat exchanger 4b may be divided up and down as shown in the figure, or may be divided left and right, or in other division forms.

[0059] See attached Figure 1 , Figure 1 FIG. 1 is a flow chart of the main steps of an air conditioner control method according to an embodiment of the present invention. Figure 1As shown, the air conditioner control method in the embodiment of the present invention mainly includes the following steps S11 to S12.

[0060] Step S11, in response to a defrost instruction, based on controlling the connection status of the first four-way valve and the second four-way valve and the opening and closing status of the first control valve and the second control valve, the outdoor unit switches from a heating mode to a first defrost mode or a second defrost mode.

[0061] Furthermore, when the indoor units 8 and 9 are in the heating mode, a refrigerant passage is formed between the exhaust port of the compressor 1 and the indoor units 8 and 9; when the first four-way valve 3a is powered on (ON) and the first control valve 3e is opened (OPEN), a refrigerant passage is formed between the first outdoor unit heat exchanger 3b and the air inlet of the compressor 1; when the first four-way valve 3a is powered off (OFF) and the first control valve 3e is closed (CLOSE), a refrigerant passage is formed between the exhaust port of the compressor 1 and the first outdoor unit heat exchanger 3b; when the second four-way valve 4a is powered on (ON) and the second control valve 4e is opened (OPEN), a refrigerant passage is formed between the second outdoor unit heat exchanger 4b and the air inlet of the compressor 1; when the second four-way valve 4a is powered off (OFF) and the second control valve 4e is closed (CLOSE), a refrigerant passage is formed between the exhaust port of the compressor 1 and the second outdoor unit heat exchanger 4b.

[0062] In one embodiment, the outdoor unit switches from a heating mode to a first defrost mode or a second defrost mode, and the method further includes: when the outdoor unit 10 is in a heating mode, controlling the first four-way valve 3a to be powered on (ON), the second four-way valve 4a to be powered on (ON), the first control valve 3e to be opened (OPEN), and the second control valve 4e to be opened (OPEN).

[0063] Please refer to the attached Figure 2 , Figure 2 1 is a schematic diagram of the structure of the air conditioner according to the first embodiment of the present invention. In this embodiment, the outdoor unit 10 is in the heating mode, and the indoor units 8 and 9 are also in the heating mode.

[0064] In other embodiments of the present invention, the number of indoor units is not limited to 2 in the example, and can be set to one or more as needed. Among them, some indoor units can be in the off state, and the indoor units in the on state can all be in the heating mode.

[0065] The first defrost mode is an operation mode in which the first outdoor heat exchanger 3b is defrosted, and the second defrost mode is an operation mode in which the second outdoor heat exchanger 4b is defrosted.

[0066] Step S12: if the first defrost mode is turned on, the first outdoor unit heat exchanger is defrosted and the indoor unit continues to heat; if the second defrost mode is turned on, the second outdoor unit heat exchanger is defrosted and the indoor unit continues to heat.

[0067] Furthermore, the method comprises:

[0068] When the first defrost mode is turned on, the first four-way valve 3a is controlled to be OFF, the second four-way valve 4a is controlled to be ON, the first control valve 3e is closed (CLOSE), and the second control valve 4e is opened (OPEN).

[0069] Please refer to the attached Figure 3 , Figure 3 1 is a schematic diagram of the structure of the air conditioner according to the second embodiment of the present invention. In this embodiment, the outdoor unit 10 is in the first defrosting mode, while the indoor units 8 and 9 are in the heating mode.

[0070] When the first defrost mode is running, the refrigerant passes through the compressor 1 and becomes a high-temperature and high-pressure gas. After leaving the exhaust port of the compressor 1 and passing through the oil separator 2, it flows into two paths to the first outdoor unit heat exchanger 3b and the air pipe 12 respectively. Among them, the refrigerant in the air pipe 12 passes through the indoor unit heat exchanger (the first indoor unit heat exchanger 8b and the second indoor unit heat exchanger 9b in the figure), passes through the liquid pipe 11, and merges with the refrigerant passing through the first outdoor unit heat exchanger 3b at point M. After the merger, the refrigerant passes through the second outdoor unit heat exchanger 4b and the gas-liquid separator 7 in turn and then returns to the air inlet of the compressor 1, forming a refrigerant cycle.

[0071] Among them, since the first four-way valve 3a is controlled to be powered off (OFF), the first control valve 3e is closed (CLOSE), and part of the refrigerant flows into the first outdoor unit heat exchanger 3b after passing through the first four-way valve 3a; since the second four-way valve 4a is controlled to be powered on (ON), the second control valve 4e is opened (OPEN), and part of the refrigerant flows into the air pipe 12 after passing through the second four-way valve 4a; on the other hand, the liquid refrigerant flowing out of the second outdoor unit heat exchanger 4b flows into the gas-liquid separator 7 after passing through the second four-way valve 4a.

[0072] At this time, the first outdoor heat exchanger 3b serves as a condenser, and the second outdoor heat exchanger 4b serves as an evaporator; the first indoor heat exchanger 8b and the second indoor heat exchanger 9b serve as condensers.

[0073] When the second defrost mode is turned on, the first four-way valve 3a is powered on (ON), the second four-way valve 4a is powered off (OFF), the first control valve 3e is opened (OPEN), and the second control valve 4e is closed (CLOSE).

[0074] Please refer to the attached Figure 4 , Figure 41 is a schematic diagram of the structure of the air conditioner according to the third embodiment of the present invention. In this embodiment, the outdoor unit 10 is in the second defrosting mode, while the indoor units 8 and 9 are in the heating mode.

[0075] When the second defrost mode is running, the refrigerant passes through the compressor 1 and becomes a high-temperature and high-pressure gas. After leaving the exhaust port of the compressor 1 and passing through the oil separator 2, it flows into two paths to the second outdoor unit heat exchanger 4b and the air pipe 12 respectively. Among them, the refrigerant in the air pipe 12 passes through the indoor unit heat exchanger (the first indoor unit heat exchanger 8b and the second indoor unit heat exchanger 9b in the figure), passes through the liquid pipe 11, and merges with the refrigerant passing through the second outdoor unit heat exchanger 4b at point M. After the merger, the refrigerant passes through the first outdoor unit heat exchanger 3b and the gas-liquid separator 7 in turn and then returns to the air inlet of the compressor 1, forming a refrigerant cycle.

[0076] Among them, since the first four-way valve 3a is controlled to be powered on (ON), the first control valve 3e is opened (OPEN), and part of the refrigerant flows into the air pipe 12 after passing through the first four-way valve 3a; since the second four-way valve 4a is controlled to be powered off (OFF), the second control valve 4e is closed (CLOSE), and part of the refrigerant flows into the second outdoor unit heat exchanger 4b after passing through the second four-way valve 4a; on the other hand, the liquid refrigerant flowing out of the first outdoor unit heat exchanger 3b flows into the gas-liquid separator 7 after passing through the first four-way valve 3a.

[0077] At this time, the second outdoor heat exchanger 4b serves as a condenser, and the first outdoor heat exchanger 3b serves as an evaporator; the first indoor heat exchanger 8b and the second indoor heat exchanger 9b serve as condensers.

[0078] Furthermore, in order to ensure the safe operation of the air conditioner, the air conditioner is further provided with a plurality of electronic expansion valves, including a first outdoor unit electronic expansion valve 3d and a second outdoor unit electronic expansion valve 4d provided in the outdoor unit 10, a first indoor unit electronic expansion valve 8a provided in the first indoor unit 8, and a second indoor unit electronic expansion valve 9a provided in the second indoor unit 9. Stop valves may also be provided on the gas pipe 12 and the liquid pipe 11.

[0079] In one embodiment, the first control valve 3e and the second control valve 4e are electronic expansion valves.

[0080] In one embodiment, the method further includes, based on controlling the connection state of the first four-way valve and the second four-way valve, making the outdoor unit operate in a cooling mode. Figure 5 , Figure 5 1 is a schematic diagram of the structure of an air conditioner according to a fourth embodiment of the present invention. In this embodiment, the outdoor unit 10 is in cooling mode, while the indoor units 8 and 9 are in cooling mode.

[0081] When the outdoor unit is in cooling mode, the first four-way valve 3a is controlled to be OFF, the second four-way valve 4a is controlled to be OFF, the first control valve 3e is opened (OPEN), and the second control valve 4e is opened (OPEN).

[0082] When operating in cooling mode, the refrigerant passes through the compressor 1 and becomes a high-temperature and high-pressure gas. After leaving the exhaust port of the compressor 1 and passing through the oil separator 2, it flows into two paths respectively to the first outdoor unit heat exchanger 3b and the second outdoor unit heat exchanger 4b. The refrigerant converges at point M. After the convergence, the refrigerant passes through the indoor unit heat exchanger (the first indoor unit heat exchanger 8b and the second indoor unit heat exchanger 9b in the figure), the gas-liquid separator 7 in turn, and then returns to the air inlet of the compressor 1, forming a refrigerant cycle.

[0083] Among them, since the first four-way valve 3a is controlled to be powered off (OFF), the first control valve 3e is opened (OPEN), and part of the refrigerant flows into the first outdoor unit heat exchanger 3b after passing through the first four-way valve 3a; since the second four-way valve 4a is controlled to be powered off (OFF), the second control valve 4e is opened (OPEN), part of the refrigerant flows into the second outdoor unit heat exchanger 4b after passing through the second four-way valve 4a; on the other hand, the refrigerant flowing out of the indoor units 8 and 9 flows into the gas-liquid separator 7 after passing through the first four-way valve 3a and the second four-way valve 4a respectively.

[0084] Furthermore, in one embodiment, the outdoor unit is further provided with a first defrost sensor and a second defrost sensor, which are used to collect temperature values ​​of the first outdoor unit heat exchanger and the second outdoor unit heat exchanger respectively; the method further comprises:

[0085] Based on the temperature value data collected by the first defrost sensor and the second defrost sensor, determining whether the first outdoor unit heat exchanger and the second outdoor unit heat exchanger have reached a preset defrost temperature value;

[0086] If the first defrost sensor reaches the defrost temperature value first, the first defrost mode is turned on;

[0087] If the second defrost sensor reaches the defrost temperature value first, the second defrost mode is turned on.

[0088] In a technical solution of the above air conditioner control method, after the outdoor unit is switched from the heating mode to the first defrost mode or the second defrost mode, the method further includes:

[0089] After the first defrost mode or the second defrost mode is completed, determining whether to continue defrosting;

[0090] If yes, re-acquire the temperature value data collected by the first defrost sensor and the second defrost sensor, and return to the step of "determining whether the first outdoor unit heat exchanger and the second outdoor unit heat exchanger have reached the preset defrost temperature value based on the temperature value data collected by the first defrost sensor and the second defrost sensor";

[0091] If not, the defrosting is finished and the outdoor unit returns to the heating mode.

[0092] Exemplarily, in one embodiment, the determination of whether to continue defrosting may be based on the defrost program that has been run. If the first defrost mode and the second defrost mode have been run in this defrost, there is no need to continue defrosting; otherwise, defrosting needs to continue.

[0093] Based on the above steps S11-S12, based on the control of the connection status of the first four-way valve and the second four-way valve and the opening and closing status of the first control valve and the second control valve, the outdoor unit is switched from the heating mode to the first defrost mode or the second defrost mode, so as to achieve the effect of continuous heating of the indoor unit while the outdoor unit is defrosting, thereby optimizing the indoor temperature experience.

[0094] In order to fully explain the air conditioner control method, the present invention also provides an embodiment. Figure 6 .

[0095] Figure 6 FIG. 1 is a detailed flow chart of the air conditioner control method according to an embodiment of the present invention; Figure 6 As shown, the air conditioner control method includes the following steps S61 to S69.

[0096] Step S61, determine whether the outdoor unit is in heating mode; if so, execute step S63; if not, execute step S62, and no defrosting is required.

[0097] Step S63: collecting temperature data T of the first outdoor heat exchanger based on the first defrost sensor and the second defrost sensor. def1 and the temperature value data T of the second outdoor unit heat exchanger def2 .

[0098] Step S64, determine T def1 or T def2 First reach the preset defrost temperature value T def-tar .

[0099] If T def1 First reach the preset defrost temperature value T def-tar , then execute step S65:

[0100] Step S65, setting the first four-way valve: OFF, the second four-way valve: ON, the first control valve: CLOSE, and the second control valve: OPEN.

[0101] Step S66: the first outdoor unit heat exchanger is defrosted, and the indoor unit continues heating.

[0102] If T def2 First reach the preset defrost temperature value T def-tar , then execute step S67:

[0103] Step S67, setting the first four-way valve: ON, the second four-way valve: OFF, the first control valve: OPEN, and the second control valve: CLOSE.

[0104] Step S68: The second outdoor unit heat exchanger is defrosted and the indoor unit continues heating.

[0105] After the above step S66 or step S68 is completed, step S69 is executed to determine whether it is necessary to continue defrosting.

[0106] If so, the process returns to step S63, and after the outdoor unit heat exchanger is alternately defrosted, the defrosting ends; if not, the defrosting ends directly.

[0107] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be performed in such an order. They can be performed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present invention.

[0108] Furthermore, the present invention also provides an air conditioner control system.

[0109] The air conditioner includes an outdoor unit and an indoor unit, the air conditioner includes an outdoor unit and an indoor unit, the outdoor unit includes a first outdoor unit heat exchanger, a second outdoor unit heat exchanger and a compressor; the air conditioner is provided with a first four-way valve and a second four-way valve, a first control valve is provided on the pipeline connecting the first four-way valve to the indoor unit, and a second control valve is provided on the pipeline connecting the second four-way valve to the indoor unit, wherein the first four-way valve and the first control valve are used to jointly control the first outdoor unit heat exchanger to be selectively connected to the air inlet or exhaust port of the compressor; the second four-way valve and the second control valve are used to jointly control the second outdoor unit heat exchanger to be selectively connected to the air inlet or exhaust port of the compressor.

[0110] See attached Figure 7 , Figure 7 FIG. 1 is a main structural block diagram of an air conditioner control system according to an embodiment of the present invention. Figure 7As shown, the air conditioner control system in the embodiment of the present invention mainly includes a command acquisition module 71 and a defrost control module 72. In some embodiments, the command acquisition module 71 and the defrost control module 72 can be combined into one module. In some embodiments, the command acquisition module 71 can be configured to obtain a defrost instruction for the outdoor unit to switch from a heating mode to a first defrost mode or a second defrost mode. The defrost control module 72 can be configured to control the first outdoor unit heat exchanger to defrost if the first defrost mode is turned on, and the indoor unit continues to heat; if the second defrost mode is turned on, the second outdoor unit heat exchanger is controlled to defrost, and the indoor unit continues to heat.

[0111] In one implementation, the description of the specific implementation functions can refer to step S11-step S12.

[0112] The air conditioner control system is used to execute Figure 1 The air conditioner control method embodiment shown in the figure has similar technical principles, technical problems solved and technical effects produced. Technicians in this technical field can clearly understand that for the convenience and conciseness of description, the specific working process and related instructions of the air conditioner control system can refer to the contents described in the embodiment of the air conditioner control method, which will not be repeated here.

[0113] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the air conditioner control system of the present invention, the physical devices corresponding to these modules can be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of each module in the figure is only schematic.

[0114] Those skilled in the art will appreciate that the various modules in the air conditioner control system can be adaptively split or merged. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

[0115] It is understood by those skilled in the art that the present invention implements all or part of the processes in the method of the above embodiment, and can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium that can carry the computer program code. It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media do not include electric carrier signals and telecommunication signals.

[0116] Furthermore, the present invention also provides a computer-readable storage medium. In a computer-readable storage medium embodiment according to the present invention, the computer-readable storage medium can be configured to store a program for executing the air conditioner control method of the above method embodiment, and the program can be loaded and run by the processor to implement the above air conditioner control method. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The computer-readable storage medium can be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present invention is a non-temporary computer-readable storage medium.

[0117] Furthermore, the present invention also provides an electronic device. Figure 8 , Figure 8 It is a main structural block diagram of an electronic device for executing the air conditioner control method of the present invention.

[0118] like Figure 8 As shown, in an electronic device embodiment according to the present invention, the electronic device includes a processor 801 and a memory 802, the memory 802 can be configured to store a program code 803 for executing the air conditioner control method of the above method embodiment, and the processor 801 can be configured to execute the program code 803 in the memory 802, the program code 803 including but not limited to the program code 803 for executing the air conditioner control method of the above method embodiment. For ease of explanation, only the part related to the embodiment of the present invention is shown, and for the specific technical details not disclosed, please refer to the method part of the embodiment of the present invention.

[0119] Furthermore, the present invention also provides an air conditioner, comprising an air conditioner body and the above-mentioned air conditioner control system and / or the above-mentioned electronic device.

[0120] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0121] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An air conditioner control method, characterized in that: The air conditioner comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a first outdoor unit heat exchanger, a second outdoor unit heat exchanger and a compressor; the air conditioner is provided with a first four-way valve and a second four-way valve, a first control valve is provided on a pipeline connecting the first four-way valve to the indoor unit, and a second control valve is provided on a pipeline connecting the second four-way valve to the indoor unit, wherein the first four-way valve and the first control valve are used to jointly control the first outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the second four-way valve and the second control valve are used to jointly control the second outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the method comprises: In response to a defrost instruction, the outdoor unit switches from a heating mode to a first defrost mode or a second defrost mode based on control of the connection states of the first four-way valve and the second four-way valve and the opening and closing states of the first control valve and the second control valve; If the first defrost mode is turned on, the first outdoor unit heat exchanger is defrosted and the indoor unit continues to heat; if the second defrost mode is turned on, the second outdoor unit heat exchanger is defrosted and the indoor unit continues to heat.

2. The method according to claim 1, characterized in that When the indoor unit is in heating mode, a refrigerant passage is formed between the exhaust port of the compressor and the indoor unit; when the first four-way valve is powered on and the first control valve is opened, a refrigerant passage is formed between the first outdoor unit heat exchanger and the air inlet of the compressor; when the first four-way valve is powered off and the first control valve is closed, a refrigerant passage is formed between the exhaust port of the compressor and the first outdoor unit heat exchanger; when the second four-way valve is powered on and the second control valve is opened, a refrigerant passage is formed between the second outdoor unit heat exchanger and the air inlet of the compressor; when the second four-way valve is powered off and the second control valve is closed, a refrigerant passage is formed between the exhaust port of the compressor and the second outdoor unit heat exchanger; the method comprises: When the first defrost mode is turned on, the first four-way valve is powered off, the second four-way valve is powered on, the first control valve is closed, and the second control valve is opened; When the second defrost mode is turned on, the first four-way valve is powered on, the second four-way valve is powered off, the first control valve is opened, and the second control valve is closed.

3. The method according to claim 2, characterized in that The outdoor unit is switched from a heating mode to a first defrost mode or a second defrost mode, and the method further includes: When the outdoor unit is in the heating mode, the first four-way valve is powered on, the second four-way valve is powered on, the first control valve is opened, and the second control valve is opened.

4. The method according to any one of claims 1 to 3, characterized in that The outdoor unit is also provided with a first defrost sensor and a second defrost sensor, which are used to collect temperature values ​​of the first outdoor unit heat exchanger and the second outdoor unit heat exchanger respectively; the method further includes: Based on the temperature value data collected by the first defrost sensor and the second defrost sensor, determining whether the first outdoor unit heat exchanger and the second outdoor unit heat exchanger have reached a preset defrost temperature value; If the first defrost sensor reaches the defrost temperature value first, the first defrost mode is turned on; If the second defrost sensor reaches the defrost temperature value first, the second defrost mode is turned on.

5. The method according to claim 4, characterized in that After the outdoor unit is switched from the heating mode to the first defrost mode or the second defrost mode, the method further includes: After the first defrost mode or the second defrost mode is completed, determining whether to continue defrosting; If yes, then reacquire the temperature value data collected by the first defrost sensor and the second defrost sensor, and return to the step "based on the temperature value data collected by the first defrost sensor and the second defrost sensor, determine whether the first outdoor unit heat exchanger and the second outdoor unit heat exchanger have reached the preset defrost temperature value"; If not, the defrosting is finished and the outdoor unit returns to the heating mode.

6. The method according to claim 2, characterized in that The method further includes, based on controlling the connection state of the first four-way valve and the second four-way valve, causing the outdoor unit to operate in a cooling mode: When the outdoor unit is in cooling mode, the first four-way valve is controlled to be de-energized, the second four-way valve is controlled to be de-energized, the first control valve is opened, and the second control valve is opened.

7. An air conditioner control system, characterized in that: The air conditioner comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a first outdoor unit heat exchanger, a second outdoor unit heat exchanger and a compressor; the air conditioner is provided with a first four-way valve and a second four-way valve, a first control valve is provided on a pipeline connecting the first four-way valve to the indoor unit, and a second control valve is provided on a pipeline connecting the second four-way valve to the indoor unit, wherein the first four-way valve and the first control valve are used to jointly control the first outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the second four-way valve and the second control valve are used to jointly control the second outdoor unit heat exchanger to be selectively connected to an air inlet or an air outlet of the compressor; the system comprises: An instruction acquisition module is used to acquire a defrost instruction for the outdoor unit to switch from a heating mode to a first defrost mode or a second defrost mode; The defrost control module controls the first outdoor unit heat exchanger to defrost and the indoor unit continues to heat if the first defrost mode is turned on; and controls the second outdoor unit heat exchanger to defrost and the indoor unit continues to heat if the second defrost mode is turned on.

8. A computer-readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the air conditioner control method according to any one of claims 1 to 6.

9. An electronic device comprising a processor and a memory, wherein the memory is suitable for storing a plurality of program codes, wherein: The program code is suitable for being loaded and run by the processor to execute the air conditioner control method according to any one of claims 1 to 6.

10. An air conditioner, characterized in that: It comprises an air conditioner body and the air conditioner control system according to claim 7 and / or the electronic device according to claim 9.

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