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

Abstract

The application discloses an air conditioner, a control method and device thereof and a storage medium, and relates to the technical field of air conditioners. The application obtains the current operation mode of the air conditioner and air adjustment requirements corresponding to at least one target air conditioner indoor unit, and then determines a target heat exchange strategy of the air conditioner according to the air conditioner adjustment requirements, adjusts the connection state of each switching device according to the current operation mode of the air conditioner and the target heat exchange strategy, realizes the switching of temperature control of a single room and temperature control of multiple rooms under different heat exchange functions, improves the energy efficiency of the operation process of the air conditioner, and avoids the technical problems that the air conditioner cannot realize the switching of temperature change of a single functional space and temperature change of multiple functional spaces and has low energy efficiency in the prior art.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more particularly to air conditioners, air conditioner control methods, devices and storage media. Background Technology

[0002] During operation, the refrigerant temperature in the refrigerant pipes of a multi-split air conditioner is similar. The compressor will deliver the refrigerant to the heat exchangers in each room. If the heat exchange load of each room differs greatly, it will operate at a higher power consumption in order to meet the needs of all users, resulting in energy waste in the operation of the air conditioner. In other words, multi-split air conditioners cannot simultaneously achieve temperature switching between single-function and multi-function spaces, resulting in lower energy efficiency.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main objective of this invention is to provide a control method for an air conditioner, which aims to solve the technical problems of existing air conditioners being unable to achieve temperature switching between single-function and multi-function spaces, resulting in low energy efficiency.

[0005] To achieve the above objectives, the present invention provides an air conditioner, the air conditioner comprising: an outdoor unit and at least two indoor units, wherein the outdoor unit is connected to each indoor unit respectively;

[0006] The outdoor unit of the air conditioner includes at least a compressor, an outdoor heat exchanger, a first reversing device, and a second reversing device. The compressor includes an exhaust port, a first suction port, and a second suction port.

[0007] Each indoor air conditioning unit includes at least a first indoor heat exchanger and a second indoor heat exchanger.

[0008] The first reversing device includes a first port, a second port, a third port, a fourth port, a fifth port, and a sixth port. The first port is connected to the first air intake, the second port is connected to the first end of the outdoor heat exchanger, the third port is connected to the second air intake, the fourth port is connected to the first end of the first indoor heat exchanger, the fifth port is connected to the exhaust port, and the sixth port is connected to the third port of the second reversing device.

[0009] The first selector of the second reversing device is connected to the first end of the first indoor heat exchanger, the second selector is connected to the first end of the first indoor heat exchanger in another air conditioning unit, the third selector is connected to the second end of the second indoor heat exchanger in another air conditioning unit, and the fourth selector is connected to the second end of the second indoor heat exchanger.

[0010] Optionally, the exhaust port, the first reversing device, and the second end of the outdoor heat exchanger are all connected to the second end of the first indoor heat exchanger and the first end of the second indoor heat exchanger in each air conditioning unit.

[0011] Optionally, at least one electronic expansion valve is provided between the second end of the outdoor heat exchanger and the second end of the first indoor heat exchanger in each air conditioning unit and the first end of the second indoor heat exchanger.

[0012] The one or more technical solutions proposed in this application have at least the following technical effects: By providing a first reversing device and a second reversing device in the outdoor unit of the air conditioner, both the first reversing device and the second reversing device can be connected to different indoor heat exchangers in different rooms, so that when the air conditioner is running, the switching between the connection state of the first reversing device and the second reversing device can be achieved, thereby improving the energy efficiency of the air conditioner during operation and avoiding the technical problem of low energy efficiency in the prior art where the air conditioner cannot achieve the switching between the temperature of a single-function space and the temperature of a multi-function space.

[0013] This invention provides a control method for an air conditioner, the method comprising the following steps:

[0014] The current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target indoor air conditioner unit are obtained, wherein the target indoor air conditioner unit is an indoor air conditioner unit with air conditioning requirements.

[0015] Determine the target heat exchange strategy based on the aforementioned air conditioning requirements;

[0016] Adjust the connection status of each switching device according to the current operating mode and the target heat exchange strategy.

[0017] Optionally, adjusting the connectivity state of each switching device according to the current operating mode and the target heat exchange strategy includes:

[0018] Adjust the connection state of the second switching device according to the target heat exchange strategy;

[0019] Adjust the connection status of the first commutator according to the current operating mode.

[0020] Optionally, adjusting the connectivity state of the second commutator according to the target heat exchange strategy includes:

[0021] When the target heat exchange strategy is the first heat exchange strategy, the first and fourth ports, and the second and third ports of the second switching device are controlled to be turned on.

[0022] When the target heat exchange strategy is the second heat exchange strategy, the first port, the second port, the third port and the fourth port of the second switching device are controlled to be turned on.

[0023] When the target heat exchange strategy is the third heat exchange strategy, the first port and the second port of the second commutation device are controlled to be turned on.

[0024] Optionally, adjusting the connection state of the first commutator according to the current operating mode includes:

[0025] When the air conditioner is in heating mode, the fifth port of the first reversing device is connected to the fourth port and the sixth port respectively.

[0026] The second port controlling the first commutation device is connected to the first port and the third port respectively.

[0027] Optionally, the control method for the air conditioner further includes:

[0028] When the air conditioner is running in cooling mode, the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first commutation device are connected.

[0029] Optionally, determining the target heat exchange strategy based on the air conditioning requirements includes:

[0030] Obtain the number of the target air conditioner indoor units;

[0031] The air conditioning requirement difference is determined based on the quantity and the air conditioning requirements of each target indoor air conditioning unit;

[0032] The target heat exchange strategy is determined based on the difference in air conditioning demand and / or the quantity.

[0033] Optionally, determining the air conditioning requirement difference based on the quantity and the air conditioning requirements of each target indoor air conditioning unit includes:

[0034] When the number equals the target threshold, the air conditioning demand difference is determined based on the air conditioning demand of each target indoor air conditioning unit;

[0035] The air conditioning requirement difference is determined based on the quantity and the air conditioning requirements of each target indoor air conditioning unit;

[0036] The difference in air conditioning requirements is determined based on the first air conditioning requirement and the second air conditioning requirement.

[0037] Optionally, determining the target heat exchange strategy based on the difference in air conditioning demand and / or the quantity includes:

[0038] When the difference in air conditioning demand is greater than a preset threshold, the target heat exchange strategy is the first heat exchange strategy;

[0039] When the difference in air conditioning demand is less than or equal to a preset threshold, the target heat exchange strategy is the second heat exchange strategy.

[0040] When the quantity is less than the target threshold, the target heat exchange strategy is the third heat exchange strategy.

[0041] Optionally, after obtaining the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target indoor unit, the method further includes:

[0042] Determine the target indoor heat exchanger and the corresponding target electronic expansion valve for the target air conditioner indoor unit;

[0043] Open the target electronic expansion valve.

[0044] Optionally, the air conditioning requirements include at least one of temperature conditioning requirements, humidity conditioning requirements, and user status conditioning requirements.

[0045] Furthermore, to achieve the above objectives, the present invention also proposes a control device for an air conditioner, the control device comprising:

[0046] The acquisition module is used to acquire the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target air conditioning indoor unit, wherein the target air conditioning indoor unit is an air conditioning indoor unit with air conditioning requirements;

[0047] The determination module is used to determine the target heat exchange strategy based on the air conditioning requirements;

[0048] The adjustment module is used to adjust the connection status of each switching device according to the current operating mode and the target heat exchange strategy.

[0049] In addition, to achieve the above objectives, the present invention also proposes a storage medium storing a control program for an air conditioner, wherein the control program for the air conditioner, when executed by a processor, implements the steps of the control method for the air conditioner as described above.

[0050] The one or more technical solutions proposed in this application have at least the following technical effects: This application obtains the current operating mode of the air conditioner and the air adjustment requirements corresponding to at least one target indoor air conditioner unit, and then determines the target heat exchange strategy of the air conditioner according to the air conditioner adjustment requirements. According to the current operating mode of the air conditioner and the target heat exchange strategy, the connection state of each reversing device is adjusted respectively, thereby realizing the switching between single-room temperature control and multi-room temperature control under different heat exchange functions. This improves the energy efficiency of the air conditioner during operation and avoids the technical problem in the prior art that the air conditioner cannot realize the switching between single-function space temperature change and multi-function space temperature change, resulting in low energy efficiency. Attached Figure Description

[0051] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0052] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of the structure of an embodiment of the air conditioner of the present invention;

[0054] Figure 2 This is a schematic diagram of the refrigerant flow direction in multi-room control under the heating mode of an embodiment of the air conditioner of the present invention;

[0055] Figure 3 This is a schematic diagram of the refrigerant flow direction controlled in a single room under heating mode in an embodiment of the air conditioner of the present invention;

[0056] Figure 4 This is a schematic diagram of the refrigerant flow direction in the heating mode of an embodiment of the air conditioner of the present invention.

[0057] Figure 5 This is a schematic diagram of the refrigerant flow direction in multi-room control under the cooling mode of an embodiment of the air conditioner of the present invention;

[0058] Figure 6 This is a schematic diagram of the refrigerant flow direction controlled in a single room under the cooling mode of an embodiment of the air conditioner of the present invention;

[0059] Figure 7 This is a schematic diagram of the refrigerant flow direction in the cooling mode of an embodiment of the air conditioner of the present invention when only one side is in operation;

[0060] Figure 8 This is a flowchart illustrating the first embodiment of the control method for an air conditioner according to the present invention;

[0061] Figure 9 This is a flowchart illustrating the second embodiment of the control method for an air conditioner according to the present invention;

[0062] Figure 10 This is a flowchart illustrating the third embodiment of the control method for an air conditioner according to the present invention;

[0063] Figure 11 This is a structural block diagram of the first embodiment of the control device for the air conditioner of the present invention;

[0064] Figure 12 This is a schematic diagram of the structure of an air conditioner in the hardware operating environment involved in the embodiments of the present invention.

[0065] Explanation of icon numbers:

[0066]

[0067]

[0068] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0069] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0070] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0071] This application provides an air conditioner, see reference. Figure 1 The air conditioner includes: an outdoor unit and at least two indoor units. The outdoor unit is connected to each indoor unit, and each indoor unit is installed in a different area. In this embodiment and subsequent embodiments, two rooms are used as an example, and each room has one indoor unit installed.

[0072] The outdoor unit of the air conditioner in this embodiment includes at least a compressor 1, an outdoor heat exchanger 3, a first reversing device 2, and a second reversing device 23. The compressor 1 is a double-suction single-row compressor 1, which includes at least an exhaust port, a first suction port b1, and a second suction port b2. The first suction port b1 and the second suction port b2 are both used to recover the refrigerant of the indoor unit of the air conditioner in a room. In addition, the compressor 1 in this application can be provided with two compression chambers, and each compression chamber can be provided with a corresponding suction port and an exhaust port. The exhaust port of the compressor 1 can be connected to the fifth port of the first reversing device 2.

[0073] Each room's indoor air conditioning unit includes at least a first indoor heat exchanger and a second indoor heat exchanger, forming a dual evaporator or dual condenser in a single room to improve the heat exchange capacity of the indoor environment and meet the user's heat exchange needs.

[0074] The first reversing device 2 includes a first port, a second port, a third port, a fourth port, a fifth port, and a sixth port. The first port is connected to the first suction port b1 of the compressor 1, the second port is connected to the second end of the outdoor heat exchanger 3, the third port is connected to the second suction port b2 of the compressor 1, the fourth port is connected to the first end of the first indoor heat exchanger, the fifth port is connected to the exhaust port of the compressor 1, and the sixth port is connected to the third port of the second reversing device 23.

[0075] Furthermore, the first reversing device 2 may also include a first four-way valve 21 and a second four-way valve 22. The first selector end of the first four-way valve 21 corresponds to the first port of the first reversing device 2, that is, it is connected to the first suction port b1 of the compressor 1; the second selector end of the first four-way valve 21 corresponds to the second port of the first reversing device 2, and the second selector end of the first four-way valve 21 is connected to the fourth selector end of the second four-way valve 22; the third selector end of the first four-way valve 21 corresponds to the fifth port of the first reversing device 2, that is, it is connected to the discharge port of the compressor 1; the fourth selector end of the first four-way valve 21 corresponds to the sixth port of the first reversing device 2, that is... The second four-way valve 22 is connected to the third port of the first four-way valve 23; the first selector of the second four-way valve 22 corresponds to the third port of the first four-way valve 2, that is, it is connected to the second suction port b2 of the compressor 1; the second selector of the second four-way valve 22 corresponds to the fourth port of the first four-way valve 2, that is, it is connected to the first end of the first indoor heat exchanger; the third selector of the second four-way valve 22 corresponds to the fifth port of the first four-way valve 2, that is, it is connected to the exhaust port of the compressor 1; the fourth selector of the second four-way valve 22 corresponds to the second port of the first four-way valve 2, that is, it forms the second port of the first four-way valve 2 with the second selector of the first four-way valve 21.

[0076] The first selector terminal of the second reversing device 23 is connected to the first end of the first indoor heat exchanger, the second selector terminal is connected to the first end of the first indoor heat exchanger in another air conditioning unit, the third selector terminal is connected to the second end of the second indoor heat exchanger in another air conditioning unit, and the fourth selector terminal is connected to the second end of the second indoor heat exchanger. The second reversing device 23 can be a four-way valve or other multi-way valves that can achieve the same or similar functions. This embodiment does not impose specific limitations on this.

[0077] The compressor 1's exhaust port, the first reversing device 2, and the outdoor heat exchanger 3 are connected in series to form an outdoor heat exchange path. The second end of the outdoor heat exchange path, i.e., the second end of the outdoor heat exchanger, is connected to the second end of the first indoor heat exchanger and the first end of the second indoor heat exchanger in each air conditioner unit. This is to enable differentiated output of the air conditioner units in different rooms when the heat exchange load of each air conditioner unit is large, thereby achieving the purpose of energy saving in air conditioner operation.

[0078] In addition, the outdoor heat exchanger 3 in the air conditioner, the first indoor heat exchanger and the second indoor heat exchanger in each room are each equipped with at least one electronic expansion valve, so as to control the rooms that do not require heat exchange to not participate in the heat exchange action.

[0079] In this embodiment, the air conditioner is suitable for the first heat exchange strategy in heating mode. This is achieved by controlling the first and fourth ports, and the second and third ports of the second commutation device 23 to be connected, and by controlling the fifth port of the first commutation device 2 to be connected to the fourth and sixth ports respectively, and by controlling the second port of the first commutation device 2 to be connected to the first and third ports respectively. (Refer to...) Figure 2 At this time, after the refrigerant in compressor 1 comes out of the exhaust port, it is divided into two paths through the first four-way valve 21 and the second four-way valve 22. The first path is split in the second reversing device 23. One path flows directly through the first indoor heat exchanger in air conditioner unit A, and the other path flows through the second indoor heat exchanger in the same air conditioner unit A through the second reversing device 23. The second path is also split in the second reversing device 23. One path flows through the first indoor heat exchanger in another air conditioner unit B, and the other path flows through the second reversing device 23 through the second indoor heat exchanger in another air conditioner unit B. After flowing out of each indoor heat exchanger, the refrigerant merges and returns to the outdoor heat exchanger 3. It is then split at the first reversing device 2, that is, split into two paths through the first four-way valve 21 and the second four-way valve 22, returning to compressor 1 from the first suction port b1 and the second suction port b2 of compressor 1, respectively.

[0080] In this embodiment, the air conditioner is adapted to the second heat exchange strategy in heating mode. This is achieved by controlling the first and second ports, the third port, and the fourth port of the second commutation device 23 to be connected, and controlling the fifth port of the first commutation device 2 to be connected to the fourth and sixth ports respectively, and controlling the second port of the first commutation device 2 to be connected to the first and third ports respectively. (Refer to...) Figure 3After the refrigerant in compressor 1 exits from the exhaust port, it is divided into two paths through the first four-way valve 21 and the second four-way valve 22. The first path is split in the second reversing device 23. One path flows directly through the first indoor heat exchanger in air conditioner unit A, and the other path flows through the second reversing device 23 through the second indoor heat exchanger in air conditioner unit B. Similarly, the second path is split in the second reversing device 23. One path flows through the first indoor heat exchanger in air conditioner unit B, and the other path flows through the second reversing device 23 through the second indoor heat exchanger in air conditioner unit A. After exiting each indoor heat exchanger, the refrigerant flows back to the outdoor heat exchanger 3 and is split at the first reversing device 2, that is, through the first four-way valve 21 and the second four-way valve 22, and returns to compressor 1 from the first suction port b1 and the second suction port b2, respectively.

[0081] In this embodiment, the air conditioner is applicable to the third heat exchange strategy in heating mode, i.e., when only one indoor unit of the air conditioner has a heating demand. It controls the first and second ports of the second reversing device 23 to be connected, and controls the fifth port of the first reversing device 2 to be connected to the fourth and sixth ports respectively, and controls the second port of the first reversing device 2 to be connected to the first and third ports respectively. (Refer to...) Figure 4 After the refrigerant in compressor 1 exits from the exhaust port, it is divided into two paths through the first four-way valve 21 and the second four-way valve 22. The first path is split in the second reversing device 23. One path flows directly through the first indoor heat exchanger in an air conditioner indoor unit A, and the second path flows through the second indoor heat exchanger in air conditioner indoor unit A. After flowing out of each indoor heat exchanger, the flow merges back to the outdoor heat exchanger 3, and is split at the first reversing device 2, that is, split into two paths through the first four-way valve 21 and the second four-way valve 22, returning to compressor 1 from the first suction port b1 and the second suction port b2 of compressor 1, respectively.

[0082] In this embodiment, the air conditioner is suitable for the first heat exchange strategy in cooling mode. This is achieved by controlling the first and fourth ports, and the second and third ports of the second commutation device 23 to be connected, and by controlling the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first commutation device 2 to be connected. (Refer to...) Figure 5After the refrigerant in compressor 1 exits from the exhaust port, it is connected to the first four-way valve 21 and the second four-way valve 22 respectively, and then they are combined to connect to the outdoor heat exchanger 3. After passing through the outdoor electronic expansion valve 4, the refrigerant is split in the function switching module and goes to the indoor heat exchangers of different air conditioning units. In the indoor unit, it is split into two paths. One path goes through the indoor electronic expansion valve to the first heat exchanger and finally returns to the suction port of compressor 1. The other path goes through the indoor electronic expansion valve to the second heat exchanger. In the function switching module, the refrigerant flows through the fourth switching pipeline and is switched to the first switching pipeline when it passes through the third four-way valve. In the function switching module, it merges with the previous path and finally returns to the suction port of compressor 1. The indoor unit is also divided into two paths. One path goes through the indoor electronic expansion valve to the first heat exchanger and finally returns to the compressor 1 suction port. The other path goes through the indoor electronic expansion valve to the second heat exchanger. In the function switching module, the second switching pipeline flows through the third four-way valve and switches to the third switching pipeline. In the function switching module, it merges with the previous path and finally returns to the compressor 1 suction port.

[0083] In this embodiment, the air conditioner is suitable for the first heat exchange strategy in heating mode. This is achieved by controlling the first and second ports, the third port, and the fourth port of the second commutation device 23 to be connected, and by controlling the second and fifth ports, the first port and the sixth port, and the third port and the fourth port of the first commutation device 2 to be connected. (Refer to...) Figure 6 After the refrigerant in compressor 1 exits from the exhaust port, it is connected to the first four-way valve 21 and the second four-way valve 22 respectively, and then they are combined to connect to the outdoor heat exchanger 3. After passing through the outdoor electronic expansion valve 4, the refrigerant is split in the function switching module and goes to the indoor heat exchangers of different air conditioning units. In air conditioning unit A and air conditioning unit B, it is further split into two paths. The first path in air conditioning unit A goes to the first indoor heat exchanger through the indoor electronic expansion valve, and merges with the refrigerant flowing out of the first path in air conditioning unit B. Then it returns to the suction port of compressor 1 through the first reversing device 2. The second path in air conditioning unit A goes to the first indoor heat exchanger through the indoor electronic expansion valve, and merges with the refrigerant flowing out of the second path in air conditioning unit B. Then it returns to the suction port of compressor 1 through the first reversing device 2.

[0084] In this embodiment, the air conditioner is suitable for the first heat exchange strategy in heating mode. This is achieved by controlling the first and second ports of the second commutation device 23 to be connected, and by controlling the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first commutation device 2 to be connected. (Refer to...) Figure 7After the refrigerant in compressor 1 comes out of the exhaust port, it is connected to the first four-way valve 21 and the second four-way valve 22 respectively, and then they are combined into one place to connect to the outdoor heat exchanger 3. After passing through the outdoor electronic expansion valve 4, the refrigerant is split in the function switching module and goes to the indoor heat exchanger of different air conditioning indoor units. In air conditioning indoor unit A, it is split into two paths. One path returns from the first port and the second port of the second reversing device 23 to the first reversing device 2, and then returns to the suction port of compressor 1. The other path returns directly to the first reversing device 2 and then to the suction port of compressor 1.

[0085] This embodiment incorporates a first reversing device and a second reversing device in the outdoor unit of the air conditioner. Both devices can be connected to different indoor heat exchangers in different rooms. This allows the air conditioner to switch between single-function and multi-function temperature control by changing the connection status of the first and second devices during operation. This improves the energy efficiency of the air conditioner and avoids the technical problem of low energy efficiency in existing air conditioners, which cannot achieve temperature switching between single-function and multi-function spaces.

[0086] Based on this, embodiments of the present invention provide a control method for an air conditioner, referring to... Figure 8 , Figure 8 This is a flowchart illustrating the first embodiment of a control method for an air conditioner according to the present invention.

[0087] In this embodiment, the control method for the air conditioner includes the following steps:

[0088] Step S10: Obtain the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target indoor air conditioner unit, wherein the target indoor air conditioner unit is an indoor air conditioner unit with air conditioning requirements.

[0089] It should be noted that the executing entity of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, personal computer, mobile phone, etc., or an electronic device or air conditioner that can realize the above functions. The following uses the controller of a multi-split air conditioner as an example to describe this embodiment and the following embodiments.

[0090] It should be understood that the current operating mode of the air conditioner in this embodiment includes, but is not limited to, cooling mode, heating mode, and defrosting mode. The refrigerant flow in the air conditioner's refrigerant pipes differs depending on the air conditioner's operating mode. For example, in heating mode, the refrigerant first flows from the exhaust port of compressor 1 through each indoor heat exchanger to condense, thereby heating the indoor environment. Then, it undergoes evaporation through the outdoor heat exchanger to obtain a vapor-liquid mixture of refrigerant, which flows back to the suction port of compressor 1 to participate in the next compression heat exchange. In cooling mode, the refrigerant first flows from the exhaust port of compressor 1 through the outdoor heat exchanger to condense, releasing a large amount of heat carried in the refrigerant. Then, it undergoes evaporation through each indoor heat exchanger to absorb heat from the room, obtaining a vapor-liquid mixture of refrigerant, which flows back to the suction port of compressor 1 to participate in the next compression heat exchange.

[0091] It is understandable that the target air conditioner indoor unit refers to the air conditioner indoor unit that has air conditioning needs. It is usually determined by the difference between the set air parameters and the current operating parameters. In addition, in order to avoid misjudgment caused by the air conditioner being in a standard shutdown state, this embodiment can determine whether the air conditioner indoor unit has set operating parameters and whether there is an operating adjustment need, thereby reducing misjudgment.

[0092] In this embodiment and subsequent embodiments, the air conditioning requirements include, but are not limited to, at least one of the following: temperature adjustment requirements, humidity adjustment requirements, and user status adjustment requirements.

[0093] In practice, for an indoor air conditioner with a set temperature, the air conditioning requirement can be determined by judging the difference between the current indoor temperature and the set temperature; for an air conditioner with a set humidity, the air conditioning requirement can also be determined by judging the difference between the set enthalpy value and the target enthalpy value set by the system.

[0094] User status adjustment needs refer to the air conditioning needs of people in each room based on the information collected from systems equipped with cameras, radar, heart rate detection devices, such as heart rate watches worn by the human body, which can identify the age or physical condition of the people.

[0095] Furthermore, after obtaining the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target indoor unit, the method further includes:

[0096] Determine the target indoor heat exchanger and the corresponding target electronic expansion valve for the target air conditioner indoor unit;

[0097] Open the target electronic expansion valve.

[0098] In practice, in order to save energy and meet the user's air conditioning needs, this embodiment can open each target indoor heat exchanger with air conditioning needs and the corresponding target electronic expansion valve to facilitate the subsequent refrigerant flow and improve heat exchange efficiency.

[0099] Step S20: Determine the target heat exchange strategy based on the air conditioning requirements.

[0100] It should be noted that this embodiment addresses the problem that air conditioners cannot switch between temperature regulation in single-function and multi-function spaces. If there are significant differences in user comfort levels in the rooms where each air conditioner unit is located, the air conditioner can be controlled to meet the large differences in comfort levels between the two rooms while achieving differentiated output capabilities for different rooms, thus achieving energy saving. Conversely, if there are small differences in user comfort levels in the rooms where each air conditioner unit is located, the air conditioner can be controlled to meet the comfort levels of similar users while achieving energy-saving operation with dual evaporation temperatures.

[0101] Step S30: Adjust the connection status of each switching device according to the current operating mode and the target heat exchange strategy.

[0102] It is worth noting that the first reversing device 2 in this embodiment is mainly used to control whether the refrigerant from the compressor 1 flows through the outdoor heat exchanger 3 first or the indoor heat exchanger first. Therefore, when controlling the connection state of the first reversing device 2 in this embodiment, it can be determined according to the current operating mode of the air conditioner. It is mainly used to control whether the refrigerant of a single pipeline flows through all the heat exchangers in a single room or flows through one heat exchanger in each of multiple rooms, so as to realize the temperature control function of multiple rooms. When controlling the second reversing device 23, the specific connection state can be determined according to the predetermined target heat exchange strategy.

[0103] This application obtains the current operating mode of the air conditioner and the air conditioning demand corresponding to at least one target indoor unit, and then determines the target heat exchange strategy of the air conditioner based on the air conditioner's adjustment demand. According to the current operating mode of the air conditioner and the target heat exchange strategy, the connection state of each commutation device is adjusted respectively, realizing the switching between single-room temperature control and multi-room temperature control under different heat exchange functions. This improves the energy efficiency of the air conditioner during operation and avoids the technical problem of low energy efficiency in the prior art, which is that the air conditioner cannot realize the switching between temperature change in single-function space and temperature change in multi-function space.

[0104] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 9 Step S30, the control method for the air conditioner further includes the following steps:

[0105] Step S301: Adjust the connection state of the second commutation device according to the target heat exchange strategy.

[0106] It should be noted that, under different connection states, the second reversing device 23 can cause the refrigerant from the same pipeline to flow through the indoor heat exchanger in the same room, or the refrigerant from the same pipeline to flow through the indoor heat exchangers in different rooms, thereby realizing the switching between single-room temperature control and multi-room temperature control under different heat exchange functions.

[0107] Further, adjusting the connectivity state of the second commutator according to the target heat exchange strategy includes:

[0108] When the target heat exchange strategy is the first heat exchange strategy, the first and fourth ports, and the second and third ports of the second switching device are controlled to be turned on.

[0109] When the target heat exchange strategy is the second heat exchange strategy, the first port, the second port, the third port and the fourth port of the second switching device are controlled to be turned on.

[0110] When the target heat exchange strategy is the third heat exchange strategy, the first port and the second port of the second commutation device are controlled to be turned on.

[0111] In specific implementation, in order to meet the air conditioning needs of users in different rooms with large differences and to achieve the purpose of energy-saving operation of air conditioners, this embodiment can connect the first port and the fourth port, the second port and the third port of the second reversing device 23 so that the refrigerant output by the compressor 1 can be diverted so that the refrigerant in the same pipeline can flow only through the indoor heat exchanger in the same room, thereby improving the heat exchange capacity of the room with greater air conditioning needs.

[0112] In order to meet the air conditioning needs of users in different rooms with small differences and achieve the purpose of energy-saving operation of air conditioners, this embodiment can connect the first port, the second port, the third port and the fourth port of the second reversing device 23 so that the refrigerant output by the compressor 1 can be diverted so that the refrigerant in the same pipeline can flow through the indoor heat exchangers in different rooms, thereby reducing the workload of the air conditioner to control each space individually.

[0113] Step S302: Adjust the connection state of the first commutator 2 according to the current operating mode.

[0114] It is understandable that the connection state of the first reversing device 2 directly affects the refrigerant flow direction at the compressor 1 exhaust port, whether it flows through the outdoor heat exchanger 3 first or the indoor heat exchanger first. The refrigerant flow direction varies depending on the operating mode. Therefore, in this embodiment, the connection state of the first reversing device 2 can be adjusted according to the current operating mode of the air conditioner to meet the normal operating requirements of the air conditioner.

[0115] Further, adjusting the connection state of the first commutator 2 according to the current operating mode includes:

[0116] When the air conditioner is in heating mode, the fifth port of the first reversing device 2 is connected to the fourth port and the sixth port respectively;

[0117] The second port of the first commutation device 2 is connected to the first port and the third port respectively.

[0118] Furthermore, the control method for the air conditioner also includes:

[0119] When the air conditioner is running in cooling mode, the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first commutation device 2 are connected.

[0120] In a specific implementation, if the air conditioner is operating in a single heating mode, the refrigerant flow direction should be compressor 1 exhaust port - outdoor heat exchanger 3 - indoor heat exchanger - compressor 1 suction port. Therefore, the fifth port of the first reversing device 2 can be connected to the fourth port and the sixth port respectively; the second port of the first reversing device 2 can be connected to the first port and the third port respectively, so that the refrigerant output by the compressor 1 can be divided into two paths through the first reversing device 2 and flow through different indoor heat exchangers for heating.

[0121] If the air conditioner is running in single cooling mode, the refrigerant flow should be compressor 1 exhaust port - indoor heat exchanger - outdoor heat exchanger 3 - compressor 1 suction port. Therefore, the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first reversing device 2 can be connected so that the refrigerant output by compressor 1 can be gathered in the outdoor heat exchanger 3 through the first reversing device 2, and then divided into two paths, flowing through different indoor heat exchangers for cooling, and then flowing back to the first reversing device 2, and then divided into two paths to flow back to the two suction ports of compressor 1.

[0122] This embodiment adjusts the connection state of the second reversing device according to the target heat exchange strategy and adjusts the connection state of the first reversing device according to the current operating mode to realize the refrigerant flow direction of the air conditioner under different air conditioning needs and improve the operating energy efficiency of the air conditioner.

[0123] Based on the second embodiment of this application, in the third embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 10 Step S20, the control method for the air conditioner further includes the following steps:

[0124] Step S201: Obtain the number of the target air conditioner indoor units.

[0125] It should be noted that the number of target air conditioning indoor units can be determined based on the operating identifiers in each air conditioning indoor unit. Any air conditioning indoor unit with set air conditioning parameters can be identified as a target air conditioning indoor unit with air conditioning adjustment requirements.

[0126] Step S202: Determine the air conditioning requirement difference based on the quantity and the air conditioning requirements of each target indoor air conditioning unit.

[0127] It is understood that the air conditioning demand difference refers to the difference in air conditioning demand between different rooms, such as the difference in set temperature or set humidity between different rooms. This embodiment does not impose specific limitations on this.

[0128] Further, determining the air conditioning requirement difference based on the quantity and the air conditioning requirements of each target indoor air conditioning unit includes:

[0129] When the number equals the target threshold, the air conditioning demand difference is determined based on the air conditioning demand of each target indoor air conditioning unit;

[0130] When the number exceeds the target threshold, the air conditioning needs of each target indoor air conditioning unit are classified to obtain the first air conditioning needs and the second air conditioning needs.

[0131] The difference in air conditioning requirements is determined based on the first air conditioning requirement and the second air conditioning requirement.

[0132] The target threshold can be 2, and this embodiment does not impose any specific restrictions on it.

[0133] In practice, if there are only two target air conditioning indoor units, the air conditioning demand of the indoor units in these two rooms can be directly calculated to obtain the difference in air conditioning demand. Taking temperature as an example, for instance, if the set temperature of room A is 20 degrees Celsius and the set temperature of room B is 15 degrees Celsius, then the difference in air conditioning demand is 5 degrees Celsius.

[0134] If the target number of indoor air conditioning units is three or more, you can first analyze the set temperature of each room and divide them into two groups. Group similar set temperatures into the same group, that is, divide all rooms into two categories of rooms, and then determine the set temperature difference ΔTs between the two categories of rooms.

[0135] Step S203: Determine the target heat exchange strategy based on the difference in air adjustment demand and / or the quantity.

[0136] Further, determining the target heat exchange strategy based on the difference in air conditioning demand and / or the quantity includes:

[0137] When the difference in air conditioning demand is greater than a preset threshold, the target heat exchange strategy is the first heat exchange strategy;

[0138] When the difference in air conditioning demand is less than or equal to a preset threshold, the target heat exchange strategy is the second heat exchange strategy.

[0139] When the quantity is less than the target threshold, the target heat exchange strategy is the third heat exchange strategy.

[0140] In the specific implementation, if the difference in air conditioning demand ΔTs is greater than the preset threshold, it means that the comfort needs of the people in the two rooms are quite different and it is necessary to implement a strategy of varying evaporation temperature in different rooms. Then the system controls the connection state of the second reversing device 23 according to the first heat exchange strategy to meet the comfort needs of the two rooms while achieving differentiated output capabilities for different rooms, thereby achieving the goal of energy saving.

[0141] If the difference in air conditioning demand ΔTs is less than or equal to a preset threshold, the system determines that the comfort needs of the people in the two rooms are similar and that a variable evaporation temperature strategy for the same room is required. The system then controls the connection state of the second reversing device 23 according to the first heat exchange strategy to satisfy comfort while ensuring that the coil temperature of the first indoor heat exchanger and the coil temperature of the second indoor heat exchanger of the same indoor unit are different, thereby achieving energy-saving operation of the air conditioner.

[0142] If the number of indoor air conditioning units requiring air conditioning energy is 1, then only the first and second ports of the second reversing device 23 are controlled to be turned on, so that the indoor air conditioning unit requiring air conditioning energy is started.

[0143] This embodiment obtains the number of target air conditioning indoor units; determines the air conditioning demand difference based on the number and the air conditioning demand of each target air conditioning indoor unit; and determines the target heat exchange strategy based on the air conditioning demand difference and / or the number, so as to meet the air conditioning demand of each air conditioning indoor unit while achieving energy-saving operation.

[0144] This application also provides a control device for an air conditioner; please refer to [reference needed]. Figure 11 The control device of the air conditioner includes:

[0145] The acquisition module 10 is used to acquire the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target air conditioning indoor unit, wherein the target air conditioning indoor unit is an air conditioning indoor unit with air conditioning requirements.

[0146] The determination module 20 is used to determine the target heat exchange strategy based on the air conditioning requirements.

[0147] The adjustment module 30 is used to adjust the connection status of each switching device according to the current operating mode and the target heat exchange strategy.

[0148] In one embodiment, the adjustment module 30 is further configured to adjust the connectivity state of the second reversing device according to the target heat exchange strategy; and adjust the connectivity state of the first reversing device according to the current operating mode.

[0149] In one embodiment, the adjustment module 30 is further configured to control the first and fourth ports, and the second and third ports of the second reversing device to be connected when the target heat exchange strategy is the first heat exchange strategy; control the first and second ports, and the third and fourth ports of the second reversing device to be connected when the target heat exchange strategy is the second heat exchange strategy; and control the first and second ports of the second reversing device to be connected when the target heat exchange strategy is the third heat exchange strategy.

[0150] In one embodiment, the adjustment module 30 is further configured to, when the air conditioner is operating in heating mode, control the fifth port of the first reversing device to connect to the fourth port and the sixth port respectively; and control the second port of the first reversing device to connect to the first port and the third port respectively.

[0151] In one embodiment, the adjustment module 30 is further configured to control the connection between the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first commutation device when the air conditioner is operating in cooling mode.

[0152] In one embodiment, the determining module 20 is further configured to obtain the number of the target air conditioning indoor units; determine the air conditioning demand difference based on the number and the air conditioning demand of each target air conditioning indoor unit; and determine the target heat exchange strategy based on the air conditioning demand difference and / or the number.

[0153] In one embodiment, the determining module 20 is further configured to: determine an air conditioning demand difference based on the air conditioning demand of each target air conditioning indoor unit when the quantity equals the target threshold; determine the air conditioning demand difference based on the quantity and the air conditioning demand of each target air conditioning indoor unit; and determine the air conditioning demand difference based on the first air conditioning demand and the second air conditioning demand.

[0154] In one embodiment, the determining module 20 is further configured to, when the difference in air conditioning demand is greater than a preset threshold, specify the target heat exchange strategy as a first heat exchange strategy; and when the difference in air conditioning demand is less than or equal to the preset threshold, specify the target heat exchange strategy as a second heat exchange strategy.

[0155] In one embodiment, the acquisition module 10 is further configured to determine the target indoor heat exchanger and the corresponding target electronic expansion valve corresponding to the target air conditioner indoor unit; and to open the target electronic expansion valve.

[0156] In one embodiment, the acquisition module 10 is further configured to include at least one of the following: air conditioning requirements, humidity requirements, and user status requirements.

[0157] This application obtains the current operating mode of the air conditioner and the air conditioning demand corresponding to at least one target indoor unit, and then determines the target heat exchange strategy of the air conditioner based on the air conditioner's adjustment demand. According to the current operating mode of the air conditioner and the target heat exchange strategy, the connection state of each commutation device is adjusted respectively, realizing the switching between single-room temperature control and multi-room temperature control under different heat exchange functions. This improves the energy efficiency of the air conditioner during operation and avoids the technical problem of low energy efficiency in the prior art, which is that the air conditioner cannot realize the switching between temperature change in single-function space and temperature change in multi-function space.

[0158] The beneficial effects of the air conditioner control device provided in this application are the same as those of the air conditioner control method provided in the above embodiments, and other technical features in the air conditioner control device are the same as those disclosed in the above embodiments, and will not be repeated here.

[0159] This application provides an air conditioner, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the control method of the air conditioner in the first embodiment described above.

[0160] The following is for reference. Figure 12 The diagram illustrates a structural schematic of an air conditioner suitable for implementing embodiments of this application. The air conditioner in these embodiments may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 12 The air conditioner shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0161] like Figure 12As shown, the air conditioner may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the air conditioner. The processing device 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the air conditioner to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows an air conditioner with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0162] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0163] The air conditioner provided in this application, employing the control method of the air conditioner in the above embodiments, can solve the technical problem of air conditioner control. Compared with the prior art, the beneficial effects of the air conditioner provided in this application are the same as the beneficial effects of the control method of the air conditioner provided in the above embodiments, and other technical features of this air conditioner are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0164] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0165] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0166] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the air conditioner control method of the above embodiments.

[0167] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0168] The aforementioned computer-readable storage medium may be included in the air conditioner; or it may exist independently and not be installed in the air conditioner.

[0169] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the air conditioner, cause the air conditioner to control itself.

[0170] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0171] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0172] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0173] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the air conditioner described above, and is capable of solving the technical problem of air conditioner control. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the control method of the air conditioner provided in the above embodiments, and will not be repeated here.

[0174] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the air conditioner control method described above.

[0175] The computer program product provided in this application can solve the technical problem of air conditioner control. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the air conditioner control method provided in the above embodiments, and will not be repeated here.

[0176] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An air conditioner, characterized in that, The air conditioner includes: an outdoor unit and at least two indoor units, wherein the outdoor unit is connected to each indoor unit, and the at least two indoor units include indoor unit A and indoor unit B. The outdoor unit of the air conditioner includes at least a compressor, an outdoor heat exchanger, a first reversing device, and a second reversing device. The compressor includes an exhaust port, a first suction port, and a second suction port. Each indoor air conditioning unit includes at least a first indoor heat exchanger and a second indoor heat exchanger. The first reversing device includes a first port, a second port, a third port, a fourth port, a fifth port, and a sixth port. The first port is connected to the first air intake, the second port is connected to the first end of the outdoor heat exchanger, the third port is connected to the second air intake, the fourth port is connected to the first end of the first indoor heat exchanger in the air conditioner indoor unit A, the fifth port is connected to the exhaust port, and the sixth port is connected to the third port of the second reversing device. The first port of the second reversing device is connected to the first end of the first indoor heat exchanger in the air conditioner indoor unit A, the second port is connected to the first end of the first indoor heat exchanger in the air conditioner indoor unit B, the third port is connected to the second end of the second indoor heat exchanger in the air conditioner indoor unit B, and the fourth port is connected to the second end of the second indoor heat exchanger in the air conditioner indoor unit A.

2. The air conditioner as described in claim 1, characterized in that, The second end of the outdoor heat exchanger is connected to the second end of the first indoor heat exchanger and the first end of the second indoor heat exchanger in each air conditioning unit.

3. The air conditioner as described in claim 1, characterized in that, At least one electronic expansion valve is provided between the second end of the outdoor heat exchanger and the second end of the first indoor heat exchanger in each air conditioning unit and the first end of the second indoor heat exchanger.

4. A control method for an air conditioner, characterized in that, The control method for the air conditioner is applied to the air conditioner as described in any one of claims 1-3 above, and the control method for the air conditioner includes: The current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target indoor air conditioner unit are obtained, wherein the target indoor air conditioner unit is an indoor air conditioner unit with air conditioning requirements. Determine the target heat exchange strategy based on the aforementioned air conditioning requirements; Adjust the connectivity of each switching device according to the current operating mode and the target heat exchange strategy.

5. The control method for an air conditioner as described in claim 4, characterized in that, The step of adjusting the connectivity status of each switching device according to the current operating mode and the target heat exchange strategy includes: Adjust the connection state of the second switching device according to the target heat exchange strategy; Adjust the connection status of the first reversing device according to the current operating mode.

6. The control method for an air conditioner as described in claim 5, characterized in that, The step of adjusting the connectivity state of the second commutator according to the target heat exchange strategy includes: When the target heat exchange strategy is the first heat exchange strategy, the first and fourth ports, and the second and third ports of the second switching device are controlled to be turned on. When the target heat exchange strategy is the second heat exchange strategy, the first port, the second port, the third port and the fourth port of the second switching device are controlled to be turned on. When the target heat exchange strategy is the third heat exchange strategy, the first port and the second port of the second switching device are controlled to be turned on.

7. The control method for an air conditioner as described in claim 5, characterized in that, The step of adjusting the connectivity state of the first commutator according to the current operating mode includes: When the air conditioner is operating in heating mode, the fifth port of the first reversing device is connected to the fourth port and the sixth port respectively. The second port controlling the first commutation device is connected to the first port and the third port, respectively.

8. The control method for an air conditioner as described in claim 5, characterized in that, The control method for the air conditioner further includes: When the air conditioner is running in cooling mode, the second and fifth ports, the first and sixth ports, and the third and fourth ports of the first commutation device are connected.

9. The control method for an air conditioner as described in claim 4, characterized in that, The step of determining the target heat exchange strategy based on the air conditioning requirements includes: Obtain the number of the target air conditioner indoor units; The air conditioning requirement difference is determined based on the quantity and the air conditioning requirements of each target indoor air conditioning unit; The target heat exchange strategy is determined based on the difference in air conditioning demand and / or the quantity.

10. The control method for an air conditioner as described in claim 9, characterized in that, The step of determining the air conditioning demand difference based on the quantity and the air conditioning demand of each target indoor air conditioning unit includes: When the number equals the target threshold, the air conditioning demand difference is determined based on the air conditioning demand of each target indoor air conditioning unit; When the number exceeds the target threshold, the air conditioning needs of each target indoor air conditioning unit are classified to obtain the first air conditioning needs and the second air conditioning needs. The difference in air conditioning requirements is determined based on the first air conditioning requirement and the second air conditioning requirement.

11. The control method for an air conditioner as described in claim 9, characterized in that, The step of determining the target heat exchange strategy based on the difference in air conditioning demand and / or the quantity includes: When the difference in air conditioning demand is greater than a preset threshold, the target heat exchange strategy is the first heat exchange strategy; When the difference in air conditioning demand is less than or equal to a preset threshold, the target heat exchange strategy is the second heat exchange strategy. When the quantity is less than the target threshold, the target heat exchange strategy is the third heat exchange strategy.

12. The control method for an air conditioner as described in claim 4, characterized in that, After obtaining the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target indoor air conditioning unit, the method further includes: Determine the target indoor heat exchanger and the corresponding target electronic expansion valve for the target air conditioner indoor unit; Open the target electronic expansion valve.

13. The control method for an air conditioner as described in any one of claims 4-12, characterized in that, The air conditioning requirements include at least one of the following: temperature adjustment requirements, humidity adjustment requirements, and user status adjustment requirements.

14. A control device for an air conditioner, characterized in that, The air conditioner includes the air conditioner according to any one of claims 1 to 3; The control device for the air conditioner includes: The acquisition module is used to acquire the current operating mode of the air conditioner and the air conditioning requirements corresponding to at least one target air conditioning indoor unit, wherein the target air conditioning indoor unit is an air conditioning indoor unit with air conditioning requirements; The determination module is used to determine the target heat exchange strategy based on the air conditioning requirements. The adjustment module is used to adjust the connection status of each switching device according to the current operating mode and the target heat exchange strategy.

15. A storage medium, characterized in that, The storage medium stores a control program for an air conditioner, which, when executed by a processor, implements the control method for an air conditioner as described in any one of claims 4 to 13.

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