Air conditioner and control method thereof

Abstract

The invention relates to the technical field of air conditioning, in particular to an air conditioner and a control method thereof. The air conditioner comprises at least two air outlet parts, and each air outlet part comprises an air outlet and an indoor heat exchanger. The air conditioner further comprises a flow path control device, and the flow path control device is configured to adjust the flow of refrigerants flowing through all the indoor heat exchangers. The control method comprises the steps that in response to the condition that the air conditioner meets the preset shutdown condition, the indoor heat exchangers corresponding to part of the air outlet parts are closed, part of the air outlet parts are controlled not to discharge air or discharge non-heat-exchange air, meanwhile, the other air outlet parts are not changed, and heat-exchange air is blown out. The purpose that the air conditioner does not stop when reaching the temperature is achieved, frequent starting and stopping of the compressor are avoided, the problem of loud noise caused by discontinuity of sound emitted by the air conditioner is avoided, the service life of the compressor is prolonged, the reliability and safety of the air conditioner are improved, indoor environment temperature fluctuation is reduced, and the indoor environment temperature fluctuation is reduced. The sudden change of the indoor environment temperature is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner and a control method thereof. Background Art

[0002] The double-column air conditioner has two wind columns arranged in parallel, and the air outlets of the two wind columns are arranged opposite to each other. A cross-flow fan and an indoor heat exchanger are arranged in each wind column. The two indoor heat exchangers are arranged in parallel, and the refrigerant flow rate flowing through the two indoor heat exchangers is equal and fixed and cannot be adjusted. At present, when the indoor temperature is close to the user's set temperature, the air conditioner controls the temperature by reducing the frequency, but the compressor operates at the minimum frequency, and the room temperature will still reach the user's set temperature. When the temperature is reached, the compressor stops working, that is, it shuts down. When the room temperature exceeds the set temperature, it restarts and runs. Therefore, the existing air conditioner has the problem of frequent shutdown when the temperature reaches the set temperature, which will cause large temperature fluctuations in the room, loud noise during use, and seriously affect the service life of the compressor, thereby greatly reducing the reliability and safety of the air conditioner and reducing the user's experience. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioner and a control method thereof that overcome the above problems or at least partially solve the above problems, aiming to solve the problem of frequent temperature-reaching shutdown of existing two-column air conditioners, so as to achieve the purpose of improving user experience.

[0004] In one aspect, the present invention provides a control method for an air conditioner, wherein the air conditioner comprises at least two air outlets, each of which comprises an air outlet and an indoor heat exchanger; the air conditioner further comprises a flow path control device, wherein the flow path control device is configured to adjust the flow rate of a refrigerant flowing through each of the indoor heat exchangers;

[0005] The control method includes: in response to the air conditioner meeting a preset shutdown condition, closing the indoor heat exchangers corresponding to some air outlets, and controlling some air outlets not to blow air or to blow non-heat exchange air, while the remaining air outlets remain unchanged and blow out heat exchange air.

[0006] Optionally, the control method further includes:

[0007] Acquire the indoor environment temperature to obtain a first temperature;

[0008] When the air conditioner is in cooling operation, if the first temperature is continuously lower than the first preset temperature within a first preset time, the compressor is controlled to stop; or

[0009] When the air conditioner is in heating operation, if the first temperature is continuously greater than a second preset temperature within a first preset time, the compressor is controlled to stop.

[0010] Optionally, the first preset temperature is lower than a set temperature of the air conditioner;

[0011] The second preset temperature is greater than a set temperature of the air conditioner.

[0012] Optionally, the control method further includes:

[0013] In response to the compressor operating at the lowest frequency and after a set time, obtaining the indoor ambient temperature to obtain a second temperature;

[0014] It is determined whether the air conditioner meets a preset shutdown condition according to the second temperature.

[0015] Optionally, judging whether the air conditioner meets a preset shutdown condition according to the second temperature includes:

[0016] When the air conditioner is in cooling operation, if the second temperature is lower than a set temperature of the air conditioner, it is determined that the air conditioner meets a preset shutdown condition; or

[0017] When the air conditioner is in heating operation, if the second temperature is greater than a set temperature of the air conditioner, it is determined that the air conditioner meets a preset shutdown condition.

[0018] Optionally, the control method further includes:

[0019] In response to the air conditioner being started, acquiring the indoor environment temperature to obtain a third temperature;

[0020] Determining whether the third temperature meets a preset condition;

[0021] If so, the compressor is controlled to operate at the lowest frequency.

[0022] Optionally, the determining whether the third temperature satisfies a preset condition includes:

[0023] When the air conditioner is in cooling operation, if the third temperature is lower than a third preset temperature and the third preset temperature is higher than a set temperature of the air conditioner, it is determined that the air conditioner meets the preset condition; or

[0024] When the air conditioner is in heating operation, if the third temperature is greater than a fourth preset temperature and the fourth preset temperature is less than a set temperature of the air conditioner, it is determined that the air conditioner meets a preset condition.

[0025] Optionally, the flow control device includes a plurality of electronic expansion valves, and each indoor heat exchanger is connected in series with the electronic expansion valve; or

[0026] The flow path control device comprises a plurality of electronic stop valves, and each indoor heat exchanger is connected in series with the electronic stop valve.

[0027] Optionally, there are two air outlets;

[0028] Both air outlets are arranged vertically; or

[0029] The two air outlets are both arranged horizontally.

[0030] On the other hand, the present invention provides an air conditioner, including a control device, the control device including a memory and a processor, the memory storing a control program, and the control program, when executed by the processor, is used to implement the control method of the air conditioner as described in any one of the above items.

[0031] In the control method of the air conditioner of the present invention, the refrigerant flow of each of the indoor heat exchangers can be adjusted by the flow control device, so that the heat exchange of each indoor heat exchanger can be adjusted. When the air conditioner meets the preset shutdown condition, the heat exchanger corresponding to some of the air outlets is closed, which can significantly reduce the cooling capacity or heating capacity of the air conditioner, thereby effectively avoiding or delaying the phenomenon of temperature shutdown. Therefore, the present invention can achieve the purpose of the air conditioner reaching the temperature without stopping, avoid the frequent start and stop of the compressor, and avoid the problem of high noise caused by the discontinuity of the sound emitted by the air conditioner, improve the service life of the compressor and the reliability and safety of the air conditioner, reduce the indoor ambient temperature fluctuation, avoid the indoor ambient temperature from being hot and cold, and improve the user experience. In addition, the control method of the present invention has the beneficial effect of simple control program and easy execution. In addition, the present invention solves the problem of homogenization of the air supply function of the two air outlets of the existing double-column air conditioner, and can realize the differentiated needs of users for the cooling capacity or heating capacity of the two air outlets, thereby meeting the diversified air supply needs of users.

[0032] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0034] Figure 1 is a schematic flow chart of a method for controlling an air conditioner according to an embodiment of the present invention;

[0035] Figure 2 is a schematic flow chart of a method for controlling an air conditioner according to another embodiment of the present invention;

[0036] Figure 3is a schematic flow chart of a method for controlling an air conditioner according to another embodiment of the present invention;

[0037] Figure 4 is a schematic flow chart of a control method for an air conditioner during cooling operation according to another embodiment of the present invention;

[0038] Figure 5 is a schematic flow chart of a control method for an air conditioner in heating operation according to another embodiment of the present invention;

[0039] Figure 6 1 is a schematic working principle diagram of an air conditioner in a cooling mode according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] Refer to the following Figures 1 to 6 To describe the control method of the air conditioner and the air conditioner of the embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0041] Unless otherwise clearly specified and limited, the terms "control method", "installation", "connection", "connection", "fixation", "coupling" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0042] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] Figure 1 is a schematic flow chart of a method for controlling an air conditioner according to an embodiment of the present invention, and Figure 2-6 The present invention provides a control method for an air conditioner. The air conditioner includes an indoor unit 10, the indoor unit 10 includes at least two air outlets, each of which includes an air outlet and an indoor heat exchanger 11; the air conditioner also includes a flow path control device, the flow path control device is configured to adjust the flow of refrigerant flowing through each of the indoor heat exchangers.

[0044] like Figure 1 As shown, the control method of the air conditioner includes the following steps: in response to the air conditioner meeting the preset shutdown condition, the indoor heat exchanger corresponding to some air outlets is closed, and some air outlets are controlled not to discharge air, while the other air outlets remain unchanged and blow out heat exchange air. In some alternative embodiments, the control method of the air conditioner includes the following steps: in response to the air conditioner meeting the preset shutdown condition, the indoor heat exchanger corresponding to some air outlets is closed, and some air outlets are controlled not to discharge air, while the other air outlets remain unchanged and blow out heat exchange air.

[0045] Specifically, the indoor unit can have two, three or four air outlets, and the number of air outlets can be designed according to the shape of the indoor unit or the main push function. The indoor heat exchangers of each air outlet are arranged in parallel. For example: if there are two air outlets, when the air conditioner meets the preset shutdown conditions, the indoor heat exchanger corresponding to one of the air outlets is partially closed, and the air outlet is controlled not to blow air or to blow non-heat exchange air, while the other air outlet remains unchanged and blows out heat exchange air.

[0046] In this embodiment, the refrigerant flow of each of the indoor heat exchangers can be adjusted by the flow control device, so that the heat exchange amount of each indoor heat exchanger can be adjusted, so that the cooling capacity or heating capacity of the air conditioner can be adjusted. When the air conditioner meets the preset shutdown condition, the heat exchanger corresponding to some of the air outlets is closed, which can significantly reduce the cooling capacity or heating capacity of the air conditioner, thereby effectively avoiding or delaying the phenomenon of temperature shutdown. Therefore, the present invention can achieve the purpose of the air conditioner reaching the temperature without stopping, avoid the frequent start and stop of the compressor, and avoid the problem of high noise caused by the discontinuity of the sound emitted by the air conditioner, improve the service life of the compressor and the reliability and safety of the air conditioner, reduce the fluctuation of the indoor ambient temperature, avoid the sudden change of the indoor ambient temperature, and improve the user experience. In addition, the control method of the present invention has the beneficial effect of simple control program and easy execution. In addition, the present invention solves the problem of homogenization of the air supply function of the two air outlets of the existing double-column air conditioner, and can realize the differentiated needs of users for the cooling capacity or heating capacity of the two air outlets, thereby meeting the diversified air supply needs of users.

[0047] In some optional embodiments of the present invention, each air outlet is a split structure. In some alternative embodiments, each air outlet is an integrated structure.

[0048] In some optional embodiments of the present invention, each air outlet is distributed in the horizontal direction; correspondingly, each air outlet is distributed in the horizontal direction, and each indoor heat exchanger 11 is distributed in the horizontal direction. In some alternative embodiments, each air outlet is distributed in the vertical direction; correspondingly, each air outlet is distributed in the vertical direction, and each indoor heat exchanger 11 is distributed in the vertical direction. The distribution of the air outlet can be designed according to the shape of the indoor unit or the main push function.

[0049] like Figure 2 As shown, in some optional embodiments of the present invention, the control method includes the following steps: in response to the air conditioner satisfying a preset shutdown condition, closing the indoor heat exchanger corresponding to some air outlets, and controlling some air outlets to not blow air or to blow non-heat exchange air, while the remaining air outlets remain unchanged and blow out heat exchange air; obtaining the indoor ambient temperature to obtain a first temperature; when the air conditioner is in cooling operation, if the first temperature continues to be lower than the first preset temperature within a first preset time, controlling the compressor to shut down.

[0050] Specifically, when the air conditioner is in cooling operation, if the first temperature continues to be lower than the first preset temperature within the first preset time, it means that the operation of closing the heat exchanger corresponding to some air outlets has failed to regulate the indoor temperature or the regulation effect is poor; at this time, controlling the compressor to stop can reduce the impact of the indoor temperature being lower than the set temperature of the air conditioner on the user's experience.

[0051] Furthermore, in some optional embodiments of the present invention, the first preset temperature is less than the set temperature of the air conditioner. For example, the first preset temperature = the set temperature of the air conditioner - 1°C, or the first preset temperature = the set temperature of the air conditioner - 2°C.

[0052] like Figure 2 As shown, in some optional embodiments of the present invention, the control method includes the following steps: in response to the air conditioner satisfying a preset shutdown condition, closing the indoor heat exchanger corresponding to some air outlets, and controlling some air outlets to not blow air or to blow out non-heat exchange air, while the remaining air outlets remain unchanged and blow out heat exchange air; obtaining the indoor ambient temperature to obtain a first temperature; when the air conditioner is in heating operation, if the first temperature continues to be greater than the second preset temperature within a first preset time, controlling the compressor to shut down.

[0053] Specifically, when the air conditioner is in heating mode, if the first temperature continues to be greater than the second preset temperature within the first preset time, it means that the operation of closing the heat exchanger corresponding to some air outlets has failed to regulate the indoor temperature or the regulation effect is poor; at this time, controlling the compressor to stop can reduce the impact of the indoor temperature being higher than the set temperature of the air conditioner on the user's experience.

[0054] Further, in some optional embodiments of the present invention, the second preset temperature is greater than the set temperature of the air conditioner. For example: the second preset temperature = the set temperature of the air conditioner + 1°C, or the second preset temperature = the set temperature of the air conditioner + 2°C.

[0055] Further, in some optional embodiments of the present invention, the first preset time is 5 to 15 minutes (for example, 5 minutes, 6 minutes, 8 minutes, 10 minutes, 12 minutes or 10 minutes). Preferably, the first preset time is 10 minutes.

[0056] like Figure 3 As shown, in some optional embodiments of the present invention, the control method also includes the following steps: in response to the compressor running at the lowest frequency and after a set time, obtaining the indoor ambient temperature to obtain a second temperature; judging whether the air conditioner meets the preset shutdown condition based on the second temperature.

[0057] Specifically, the set time is 5 to 10 minutes (for example, 5 minutes, 6 minutes, 8 minutes or 10 minutes). After the compressor runs at the lowest frequency for the set time, the indoor ambient temperature is obtained to obtain a second temperature; and whether the air conditioner meets the preset shutdown condition is determined according to the second temperature.

[0058] like Figure 3 As shown, in some optional embodiments of the present invention, judging whether the air conditioner meets the preset shutdown condition based on the second temperature includes: when the air conditioner is running in cooling mode, if the second temperature is lower than the set temperature of the air conditioner, it is determined that the air conditioner meets the preset shutdown condition.

[0059] like Figure 3 As shown, in some optional embodiments of the present invention, judging whether the air conditioner meets the preset shutdown condition based on the second temperature includes: when the air conditioner is running in heating mode, if the second temperature is greater than the set temperature of the air conditioner, it is determined that the air conditioner meets the preset shutdown condition.

[0060] The control method further includes the following steps: in response to the air conditioner being started, acquiring the indoor ambient temperature to obtain a third temperature; determining whether the third temperature meets a preset condition; and if so, controlling the compressor to operate at a minimum frequency.

[0061] Further, if the third temperature does not meet the preset condition, the compressor is controlled to operate at the original frequency, and the air conditioner is controlled to operate at the original mode.

[0062] In some optional embodiments of the present invention, the determination of whether the third temperature meets the preset conditions includes: when the air conditioner is in cooling operation, if the third temperature is less than a third preset temperature, and the third preset temperature is greater than the set temperature of the air conditioner, it is determined that the air conditioner meets the preset conditions.

[0063] Specifically, when the air conditioner is in cooling operation, if the set temperature < the third temperature < the third preset temperature, it is determined that the air conditioner meets the preset condition. For example: the third preset temperature = the set temperature of the air conditioner + 1°C; or, the third preset temperature = the set temperature of the air conditioner + 2°C. In this embodiment, during cooling operation, before the indoor ambient temperature reaches the set temperature, the compressor is controlled to operate at the lowest frequency, which can reduce the cooling capacity of the air conditioner, thereby delaying or preventing the indoor temperature from reaching the set temperature.

[0064] In some optional embodiments of the present invention, the determination of whether the third temperature meets the preset conditions includes: when the air conditioner is in heating mode, if the third temperature is greater than a fourth preset temperature, and the fourth preset temperature is lower than the set temperature of the air conditioner, it is determined that the air conditioner meets the preset conditions.

[0065] Specifically, when the air conditioner is in cooling operation, if the fourth preset temperature < the third temperature < the set temperature, it is determined that the air conditioner meets the preset condition. For example: the fourth preset temperature = the set temperature of the air conditioner - 1°C; or, the fourth preset temperature = the set temperature of the air conditioner - 2°C. In this embodiment, during heating operation, before the indoor ambient temperature reaches the set temperature, the compressor is controlled to operate at the lowest frequency, which can reduce the heating capacity of the air conditioner, thereby delaying or preventing the indoor temperature from reaching the set temperature.

[0066] like Figure 4 As shown, in some optional embodiments of the present invention, when the air conditioner is in cooling operation, the control method of the air conditioner includes the following steps:

[0067] Step S11, in response to the air conditioner being started, obtaining the indoor ambient temperature to obtain a third temperature.

[0068] Step S12, determining whether the third temperature is less than a third preset temperature.

[0069] Step S13: If yes, control the compressor to operate at the lowest frequency.

[0070] Step S14, acquiring the indoor ambient temperature to obtain a second temperature.

[0071] Step S15, determining whether the second temperature is less than the set temperature of the air conditioner.

[0072] Step S16: If yes, close the indoor heat exchangers corresponding to some of the air outlets, and control some of the air outlets not to blow air or to blow non-heat exchange air, while the remaining air outlets remain unchanged and blow out heat exchange air.

[0073] Step S17, determining whether the first temperature is continuously lower than the first preset temperature within the first preset time.

[0074] Step S18, if yes, control the compressor to stop; if no, return to step S16.

[0075] In this embodiment, the third preset temperature = the set temperature + 1°C; the first preset time is 10 minutes; the first preset temperature = the set temperature - 1°C.

[0076] like Figure 5 As shown, in some optional embodiments of the present invention, when the air conditioner is in heating operation, the control method of the air conditioner includes the following steps:

[0077] Step S21, in response to the air conditioner being started, obtaining the indoor ambient temperature to obtain a third temperature.

[0078] Step S22, determining whether the third temperature is greater than a fourth preset temperature.

[0079] Step S23: If yes, control the compressor to operate at the lowest frequency.

[0080] Step S24, obtaining the indoor environment temperature to obtain a second temperature.

[0081] Step S25, determining whether the second temperature is greater than the set temperature of the air conditioner.

[0082] Step S26: If yes, close the indoor heat exchangers corresponding to some of the air outlets, and control some of the air outlets not to blow air or to blow non-heat exchange air, while the remaining air outlets remain unchanged and blow out heat exchange air.

[0083] Step S17, determining whether the first temperature is continuously greater than the second preset temperature within the first preset time.

[0084] Step S18, if yes, control the compressor to stop; if no, return to step S16.

[0085] In this embodiment, the fourth preset temperature = the set temperature - 1°C; the first preset time is 10 minutes; and the second preset temperature = the set temperature + 1°C.

[0086] like Figure 6As shown, in some optional embodiments of the present invention, the flow control device includes a plurality of electronic expansion valves, and each indoor heat exchanger is connected in series with the electronic expansion valve.

[0087] Specifically, the electronic expansion valve 12 is configured to adjust the refrigerant flow through the indoor heat exchanger 11 by controlling the opening. The electronic expansion valve 12 controls the refrigerant flow of the indoor heat exchanger 11 and can be closed to fully open in units of one coil drive step. Each electronic expansion valve 12 can be controlled independently.

[0088] In some other optional embodiments of the present invention, the flow control device includes a plurality of electronic stop valves, and each indoor heat exchanger is connected in series with the electronic stop valve.

[0089] Specifically, the electronic stop valve is configured to control the on and off of the indoor heat exchanger 11. Each electronic stop valve can be controlled independently.

[0090] In some optional embodiments of the present invention, the indoor unit includes two air outlets, and both air outlets are vertically arranged.

[0091] In some optional embodiments of the present invention, the indoor unit includes two air outlets, and both air outlets are arranged horizontally.

[0092] The present invention also provides an air conditioner, comprising a control device, the control device comprising a memory and a processor, the memory storing a control program, and the control program, when executed by the processor, is used to implement the air conditioner control method described in any of the above embodiments.

[0093] like Figure 6 As shown, in some optional embodiments of the present invention, the air conditioner includes an indoor unit 10 and an outdoor unit 20. The indoor unit 10 includes two air outlets, each of which includes an air outlet, an indoor fan 13 and an indoor heat exchanger 11. The outdoor unit includes a compressor 23, an outdoor heat exchanger 21 and a four-way valve 22. The two indoor heat exchangers 11 are arranged in parallel, and the two indoor heat exchangers 11 are respectively a first indoor heat exchanger and a second indoor heat exchanger. The flow control device includes two electronic expansion valves 12, and the two electronic expansion valves 12 are respectively connected in series with the corresponding indoor heat exchangers 11. The electronic expansion valve 12 is connected in series with the indoor heat exchanger 11, and the refrigerant flow in the indoor heat exchanger is controlled by the electronic expansion valve 12, and the execution action is stable and reliable. In some alternative embodiments, the flow control device includes a plurality of electronic stop valves, and each indoor heat exchanger is connected in series with an electronic stop valve.

[0094] In some optional embodiments of the present invention, the indoor unit includes two air outlets, and both air outlets are vertically arranged.

[0095] In some optional embodiments of the present invention, the indoor unit includes two air outlets, and both air outlets are arranged horizontally.

[0096] Furthermore, when the two air outlets are arranged vertically, the two air outlets are arranged symmetrically about a vertical reference plane extending forward and backward. When the two air outlets are arranged horizontally, the two air outlets are arranged symmetrically about a horizontal reference plane. The symmetrically arranged air outlets make the air conditioner look stable and in line with the aesthetic taste of the Chinese people.

[0097] Furthermore, the two air outlets are arranged at intervals to form an air induction interval between the two air outlets. When the two air outlets discharge air forward, the air in the air induction interval is driven forward by the negative pressure, so that the air is mixed with the air blown out by the two air outlets, and during cooling, the air outlet temperature is lowered, so that the wind is not too "hard" and the effect of "soft" wind is produced.

[0098] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises at least two air outlets, each of which comprises an air outlet and an indoor heat exchanger; the air conditioner further comprises a flow path control device, the flow path control device being configured to adjust the flow of refrigerant flowing through each of the indoor heat exchangers; The control method includes: in response to the air conditioner meeting a preset shutdown condition, closing the indoor heat exchangers corresponding to some air outlets, and controlling some air outlets not to blow air or to blow non-heat exchange air, while the remaining air outlets remain unchanged and blow out heat exchange air.

2. The control method according to claim 1, characterized in that: The control method also includes: Acquire the indoor environment temperature to obtain a first temperature; When the air conditioner is in cooling operation, if the first temperature is continuously lower than the first preset temperature within a first preset time, the compressor is controlled to stop; or When the air conditioner is in heating operation, if the first temperature is continuously greater than a second preset temperature within a first preset time, the compressor is controlled to stop.

3. The control method according to claim 2, characterized in that: The first preset temperature is lower than the set temperature of the air conditioner; The second preset temperature is greater than a set temperature of the air conditioner.

4. The control method according to claim 1, characterized in that: The control method further comprises: In response to the compressor operating at the lowest frequency and after a set time, obtaining the indoor ambient temperature to obtain a second temperature; It is determined whether the air conditioner meets a preset shutdown condition according to the second temperature.

5. The control method according to claim 4, characterized in that: The step of judging whether the air conditioner meets a preset shutdown condition according to the second temperature includes: When the air conditioner is in cooling operation, if the second temperature is lower than a set temperature of the air conditioner, it is determined that the air conditioner meets a preset shutdown condition; or When the air conditioner is in heating operation, if the second temperature is greater than a set temperature of the air conditioner, it is determined that the air conditioner meets a preset shutdown condition.

6. The control method according to claim 1, characterized in that: The control method further comprises: In response to the air conditioner being started, acquiring the indoor environment temperature to obtain a third temperature; Determining whether the third temperature meets a preset condition; If yes, the compressor is controlled to operate at the lowest frequency.

7. The control method according to claim 6, characterized in that: The determining whether the third temperature satisfies a preset condition includes: When the air conditioner is in cooling operation, if the third temperature is lower than a third preset temperature and the third preset temperature is higher than a set temperature of the air conditioner, it is determined that the air conditioner meets the preset condition; or When the air conditioner is in heating operation, if the third temperature is greater than a fourth preset temperature and the fourth preset temperature is less than a set temperature of the air conditioner, it is determined that the air conditioner meets a preset condition.

8. The control method according to claim 1, characterized in that: The flow path control device comprises a plurality of electronic expansion valves, each indoor heat exchanger is connected in series with the electronic expansion valve; or The flow path control device comprises a plurality of electronic stop valves, and each indoor heat exchanger is connected in series with the electronic stop valve.

9. The control method according to claim 1, characterized in that: There are two air outlets; Both air outlets are arranged vertically; or The two air outlets are both arranged horizontally.

10. An air conditioner, characterized in that: The invention comprises a control device, wherein the control device comprises a memory and a processor, wherein a control program is stored in the memory, and when the control program is executed by the processor, it is used to implement the control method of the air conditioner according to any one of claims 1 to 9.

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