Compressor and control method and device thereof, controller, air conditioner and medium

Abstract

The invention discloses a compressor and a control method and device thereof, a controller, an air conditioner and a medium, and relates to the technical field of air conditioners. The method comprises the steps that under the condition that the air conditioner runs in a refrigeration mode, it is determined that the air conditioner meets a preset frequency adjusting condition, and the running frequency of a compressor is determined according to the exhaust temperature of the compressor. According to the control method, when the exhaust temperature of the compressor is sufficient, the low-frequency operation lower limit is reduced, namely, the compressor is allowed to further reduce the operation frequency, and when the exhaust temperature of the compressor is insufficient, the low-frequency operation lower limit is increased, namely, the operation frequency of the compressor is increased. Therefore, stable operation of the slip sheet can be guaranteed to a certain extent, and abnormal noise of the slip sheet is avoided as far as possible.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a compressor control method, a compressor control device, a computer-readable storage medium, a controller, a compressor and an air conditioner. Background Art

[0002] After the room reaches the set temperature, the air-conditioning compressor will run at a lower frequency. When the air conditioner runs at a low frequency for a long time, the exhaust temperature of the compressor will drop significantly, and the pressure difference between the exhaust pressure and the return air pressure will decrease. This will cause the vane inside the compressor to not work stably at low frequency, and it will float up and down, causing abnormal vane noise. The abnormal vane noise has strong penetrating power and cannot be covered up by sound insulation cotton.

[0003] In the related art, solving the abnormal noise problem by increasing the pressure difference between the exhaust pressure and the return air pressure has certain limitations in mechanism, such as mechanical design limitations, thermal constraints, energy efficiency and power consumption, system stability and reliability, etc. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first purpose of the present invention is to propose a control method for a compressor, which determines that the air conditioner meets the preset frequency adjustment conditions when the air conditioner is operating in the cooling mode, and determines the operating frequency of the compressor according to the exhaust temperature of the compressor. The control method of the present invention reduces the lower limit of low-frequency operation when the exhaust temperature of the compressor is sufficient, that is, allows the compressor to further reduce the operating frequency, and increases the lower limit of low-frequency operation when the exhaust temperature of the compressor is insufficient, that is, increases the operating frequency of the compressor. In this way, the stable operation of the vane can be guaranteed to a certain extent, and the generation of abnormal vane noise can be avoided as much as possible.

[0005] A second object of the present invention is to provide a control device for a compressor.

[0006] A third object of the present invention is to provide a computer-readable storage medium.

[0007] A fourth object of the present invention is to provide a controller.

[0008] A fifth object of the present invention is to provide a compressor.

[0009] A sixth object of the present invention is to provide an air conditioner.

[0010] To achieve the above-mentioned purpose, the first embodiment of the present invention proposes a compressor control method, the method comprising: when the air conditioner is operating in cooling mode, determining that the air conditioner meets the preset frequency adjustment conditions; determining the operating frequency of the compressor according to the exhaust temperature of the compressor.

[0011] According to one embodiment of the present invention, determining that the air conditioner meets the frequency adjustment condition includes: when the air conditioner operates in cooling mode for a duration reaching a first preset time, or the operating frequency of the compressor reaches a first preset frequency, determining that the air conditioner meets the frequency adjustment condition, the first preset frequency being determined based on the operating frequency of the compressor when an abnormal sound occurs in the vane.

[0012] According to one embodiment of the present invention, the operating frequency of the compressor is determined according to the exhaust temperature of the compressor, including: when the exhaust temperature of the compressor is less than or equal to a first exhaust temperature threshold, controlling the compressor to operate at a first preset frequency and continuing for a second preset time; wherein the first exhaust temperature threshold is determined based on the exhaust temperature of the compressor when an abnormal sound occurs in the vane.

[0013] According to one embodiment of the present invention, determining the operating frequency of the compressor based on the exhaust temperature of the compressor also includes: when the exhaust temperature of the compressor is greater than a second exhaust temperature threshold, controlling the compressor to operate at a second preset frequency; wherein the second exhaust temperature threshold is greater than the first exhaust temperature threshold, and the second preset frequency is less than the first preset frequency.

[0014] According to one embodiment of the present invention, determining the operating frequency of the compressor based on the exhaust temperature of the compressor also includes: when the exhaust temperature of the compressor is greater than a first exhaust temperature threshold and less than or equal to a second exhaust temperature threshold, keeping the operating frequency of the compressor unchanged.

[0015] According to an embodiment of the present invention, the control method further comprises: adjusting the opening of the electronic expansion valve of the outdoor unit, and / or adjusting the rotation speed of the outdoor fan.

[0016] According to an embodiment of the present invention, adjusting the opening of the electronic expansion valve of the outdoor unit includes: reducing the opening of the electronic expansion valve and limiting the upper limit of the opening of the electronic expansion valve.

[0017] According to one embodiment of the present invention, adjusting the rotation speed of the outdoor fan includes: controlling the outdoor fan to operate at a preset minimum rotation speed.

[0018] To achieve the above-mentioned purpose, the second aspect of the embodiment of the present invention proposes a control device for a compressor, including: a first determination module, used to determine whether the air conditioner meets the preset frequency adjustment conditions when the air conditioner is operating in a cooling mode; a second determination module, used to determine the operating frequency of the compressor according to the exhaust temperature of the compressor.

[0019] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium on which a compressor control program is stored. When the compressor control program is executed by a processor, the aforementioned compressor control method is implemented.

[0020] To achieve the above objectives, the fourth aspect of the present invention proposes a controller, including a memory, a processor, and a compressor control program stored in the memory and executable on the processor. When the processor executes the compressor control program, the aforementioned compressor control method is implemented.

[0021] To achieve the above objectives, the fifth aspect of the present invention proposes a compressor, including a memory, a processor, and a compressor control program stored in the memory and executable on the processor. When the processor executes the compressor control program, the aforementioned compressor control method is implemented.

[0022] To achieve the above-mentioned purpose, a sixth aspect of the present invention provides an air conditioner, comprising the aforementioned controller, or the aforementioned compressor, or the aforementioned compressor control device.

[0023] According to the compressor and its control method, device, controller, air conditioner and medium of the embodiment of the present invention, when the air conditioner is running in cooling mode, it is determined that the air conditioner meets the preset frequency adjustment condition, and the operating frequency of the compressor is determined according to the exhaust temperature of the compressor. The control method of the present invention reduces the lower limit of low-frequency operation when the exhaust temperature of the compressor is sufficient, that is, allows the compressor to further reduce the operating frequency, and increases the lower limit of low-frequency operation when the exhaust temperature of the compressor is insufficient, that is, increases the operating frequency of the compressor. In this way, the stable operation of the vane can be guaranteed to a certain extent, and the generation of abnormal vane noise can be avoided as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flowchart of a compressor control method according to some embodiments of the present invention;

[0025] Figure 2 is a flow chart of a compressor control method according to some other embodiments of the present invention;

[0026] Figure 3 is a block diagram of a compressor control device according to some embodiments of the present invention;

[0027] Figure 4 is a block diagram of a controller according to some embodiments of the present invention;

[0028] Figure 5 is a block diagram of a compressor according to some embodiments of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following describes in detail a compressor and a control method, device, controller, air conditioner and medium according to embodiments of the present invention with reference to the accompanying drawings.

[0031] Figure 1 FIG. 1 is a flow chart of a method for controlling a compressor according to some embodiments of the present invention. Figure 1 The control method of the compressor in the embodiment of the present application may include the following steps:

[0032] S110, when the air conditioner is operating in a cooling mode, determining whether the air conditioner meets a preset frequency adjustment condition.

[0033] Specifically, after the air conditioner has been running in cooling mode for a period of time, the compressor of the air conditioner will run at a relatively low frequency, and the exhaust temperature of the compressor will be greatly reduced, causing the vanes inside the compressor to not work stably at low frequency, resulting in abnormal vane noise. Therefore, when the air conditioner is running in cooling mode, it is necessary to determine whether the air conditioner meets the preset frequency adjustment conditions. When the air conditioner meets the preset frequency adjustment conditions, the compressor frequency is adjusted, for example, the compressor is controlled to run at a frequency that does not generate abnormal vane noise, thereby avoiding the generation of abnormal vane noise to a certain extent. When the air conditioner does not meet the preset frequency adjustment conditions, there is no need to adjust the compressor frequency.

[0034] S120, determining the operating frequency of the compressor according to the exhaust temperature of the compressor.

[0035] Specifically, the abnormal sound of the sliding vane is easy to occur when the exhaust temperature is low, but it is not easy to occur when the exhaust temperature is high. Therefore, when it is determined that the air conditioner meets the preset frequency adjustment conditions, the exhaust temperature of the compressor is obtained. For example, the exhaust temperature of the compressor can be detected and obtained by a temperature sensor set at the exhaust port or pipeline of the compressor, and the operating frequency of the compressor is determined according to the exhaust temperature of the compressor.

[0036] For example, if the exhaust temperature of the compressor is detected to be low, it means that the air conditioner may produce abnormal vane noise at this time, and the compressor is controlled to operate at a frequency that will not produce abnormal vane noise. If the exhaust temperature of the compressor is detected to be high, it means that the probability of the air conditioner producing abnormal vane noise is low at this time, and the operating frequency of the compressor can be further reduced according to control requirements.

[0037] The control method of the present invention reduces the lower limit of low-frequency operation when the exhaust temperature of the compressor is sufficient, that is, allows the compressor to further reduce the operating frequency, and increases the lower limit of low-frequency operation when the exhaust temperature of the compressor is insufficient, that is, increases the operating frequency of the compressor. In this way, the stable operation of the vane can be guaranteed to a certain extent, and the generation of abnormal vane noise can be avoided as much as possible.

[0038] In some embodiments, determining that the air conditioner meets the frequency adjustment condition includes: when the air conditioner operates in cooling mode for a duration reaching a first preset time, or the operating frequency of the compressor reaches a first preset frequency, determining that the air conditioner meets the frequency adjustment condition, and the first preset frequency is determined based on the operating frequency of the compressor when an abnormal sound occurs in the vane.

[0039] Specifically, whether the air conditioner meets the preset frequency adjustment condition can be determined by judging whether the air conditioner has been running in the cooling mode for a first preset time, or judging whether the operating frequency of the compressor has reached a first preset frequency. The first preset frequency refers to the operating frequency of the air conditioner without generating abnormal sound of the sliding vane, and can be determined based on the operating frequency of the compressor when the sliding vane generates abnormal sound. The first preset time is determined according to the actual situation, and no specific limitation is made here.

[0040] For example, if the air conditioner operates in cooling mode for a duration of a first preset time, or the operating frequency of the compressor reaches a first preset frequency, it means that the operating frequency of the air conditioner compressor is already relatively low and there is a high possibility of vane noise. In this case, it is determined that the air conditioner meets the frequency adjustment conditions and it is necessary to determine the operating frequency of the compressor based on the exhaust temperature of the compressor. Otherwise, it is determined that the air conditioner does not meet the frequency adjustment conditions and it is not necessary to determine the operating frequency of the compressor based on the exhaust temperature of the compressor.

[0041] In some embodiments, determining the operating frequency of the compressor according to the exhaust temperature of the compressor includes: when the exhaust temperature of the compressor is less than or equal to a first exhaust temperature threshold, controlling the compressor to operate at a first preset frequency and continue for a second preset time; wherein the first exhaust temperature threshold is determined based on the exhaust temperature of the compressor when the vane makes an abnormal sound. wherein the first preset frequency is greater than the minimum operating frequency allowed by the compressor, and the second preset time is determined according to actual conditions, and no specific restrictions are made here.

[0042] For example, if the exhaust temperature of the compressor is less than or equal to the first exhaust temperature threshold, it means that the exhaust temperature of the air conditioner compressor is low at this time, and it is very likely to produce abnormal vane noise. In this case, the compressor is controlled to operate at a first preset frequency, that is, the compressor is controlled to operate at a frequency that will not produce abnormal vane noise, and lasts for a second preset time.

[0043] In some embodiments, determining the operating frequency of the compressor based on the exhaust temperature of the compressor also includes: when the exhaust temperature of the compressor is greater than a second exhaust temperature threshold, controlling the compressor to operate at a second preset frequency; wherein the second exhaust temperature threshold is greater than the first exhaust temperature threshold, and the second preset frequency is less than the first preset frequency.

[0044] For example, if the exhaust temperature of the compressor is greater than the second exhaust temperature threshold, it means that the exhaust temperature of the compressor is high at this time and the probability of generating abnormal vane noise is low. The operating frequency of the compressor can be further reduced according to the control requirements, that is, the compressor can be controlled to operate at a frequency lower than the first preset frequency, for example, the compressor can be controlled to operate at the second preset frequency.

[0045] In summary, if the exhaust temperature of the compressor is less than or equal to the first exhaust temperature threshold, the compressor needs to be controlled to run at the first preset frequency (a frequency that does not produce abnormal vane noise) for the second preset time, and the operating frequency of the air conditioner compressor is not allowed to be further reduced. In this way, not only the vane noise is improved, but also the exhaust temperature is helped to increase. If the exhaust temperature of the compressor is greater than the second exhaust temperature threshold, the compressor operating frequency is allowed to be further reduced. If the exhaust temperature of the compressor is less than or equal to the first exhaust temperature threshold, the compressor is controlled to run at the first preset frequency, but the compressor operating frequency needs to be further reduced according to the control requirements. At this time, the exhaust temperature of the compressor needs to be increased until it is greater than the second exhaust temperature threshold, and the compressor operating frequency is allowed to be further reduced.

[0046] In some embodiments, determining the operating frequency of the compressor based on the exhaust temperature of the compressor also includes: when the exhaust temperature of the compressor is greater than a first exhaust temperature threshold and less than or equal to a second exhaust temperature threshold, maintaining the operating frequency of the compressor unchanged.

[0047] For example, if after controlling the compressor to run at the first preset frequency for a period of time, it is detected that the exhaust temperature of the compressor is greater than the first exhaust temperature threshold and less than or equal to the second exhaust temperature threshold, the compressor is controlled to continue to run at the first preset frequency. If after controlling the compressor to run at the second preset frequency for a period of time, it is detected that the exhaust temperature of the compressor is greater than the first exhaust temperature threshold and less than or equal to the second exhaust temperature threshold, the compressor is controlled to continue to run at the second preset frequency.

[0048] In some embodiments, the control method further includes: adjusting the opening of the electronic expansion valve of the outdoor unit, and / or adjusting the rotation speed of the outdoor fan.

[0049] Specifically, after determining that the air conditioner meets the preset frequency adjustment conditions, when controlling the compressor to operate at a first preset frequency or when controlling the compressor to operate at a second preset frequency, the opening of the electronic expansion valve of the outdoor unit can be adjusted, or the speed of the outdoor fan can be adjusted, or both the opening of the electronic expansion valve of the outdoor unit and the speed of the outdoor fan can be adjusted at the same time to increase the exhaust temperature of the compressor.

[0050] In some embodiments, adjusting the opening of the electronic expansion valve of the outdoor unit includes: reducing the opening of the electronic expansion valve and limiting the upper limit of the opening of the electronic expansion valve.

[0051] Specifically, the smaller the opening of the outdoor unit's electronic expansion valve, the less refrigerant flow through the electronic expansion valve, and the higher the compressor's exhaust temperature. Therefore, reducing the opening of the electronic expansion valve can increase the compressor's exhaust temperature.

[0052] In addition, it is also necessary to limit the upper limit of the opening of the electronic expansion valve, which can to a certain extent avoid the excessive opening of the electronic expansion valve, which will cause the exhaust temperature of the compressor to decrease and produce abnormal noise from the sliding vane.

[0053] In some embodiments, adjusting the rotation speed of the outdoor fan includes: controlling the outdoor fan to operate at a preset minimum rotation speed.

[0054] Specifically, the lower the speed of the outdoor fan, the lower the wind speed of the outdoor fan, the higher the refrigerant temperature, and the higher the exhaust temperature of the compressor. Therefore, controlling the outdoor fan to run at a preset minimum speed can increase the exhaust temperature of the compressor.

[0055] In this way, by adjusting the opening of the electronic expansion valve of the outdoor unit and / or adjusting the speed of the outdoor fan, the exhaust temperature of the compressor is increased, which is beneficial to controlling the stable operation of the vane and improving the abnormal noise of the vane when the compressor runs at a lower frequency.

[0056] In addition, when the outdoor temperature is low, the exhaust temperature is often at a low level due to the influence of the outdoor temperature. At this time, adding multiple exhaust temperature improvement control strategies cannot solve the problem of low-frequency vane noise. Therefore, under low outdoor temperature conditions, if the exhaust temperature of the compressor is detected to be less than or equal to the first exhaust temperature threshold, the compressor is controlled to operate at the first preset frequency, and the vane of the compressor at this frequency can operate more stably, thus avoiding abnormal vane noise to a certain extent.

[0057] As a specific example, the control method of the compressor in the embodiment of the present application may further include the following steps:

[0058] S201, the air conditioner operates in cooling mode.

[0059] S202, determining whether the air conditioner meets the preset frequency adjustment condition. If yes, executing S204; otherwise, executing S203.

[0060] For example, whether the air conditioner meets the preset frequency adjustment condition can be determined by judging whether the air conditioner has been running in the cooling mode for a first preset time or judging whether the operating frequency of the compressor has reached a first preset frequency.

[0061] S203, keep the original control algorithm running.

[0062] S204, reducing the opening of the electronic expansion valve of the outdoor unit, and / or controlling the outdoor fan to run at a preset minimum speed.

[0063] S205, determining whether the exhaust temperature of the compressor is less than or equal to a first exhaust temperature threshold. If yes, executing S206; otherwise, executing S203.

[0064] S206, controlling the compressor to operate at a first preset frequency and continuing for a second preset time.

[0065] S207, judging whether the exhaust temperature of the compressor is greater than a second exhaust temperature threshold. If yes, executing S208; otherwise, executing S206.

[0066] S208, controlling the compressor to operate at a second preset frequency.

[0067] To sum up, the control method of the present invention reduces the low-frequency operation lower limit when the exhaust temperature of the compressor is sufficient, that is, allows the compressor to further reduce the operating frequency; and increases the low-frequency operation lower limit when the exhaust temperature of the compressor is insufficient, that is, increases the operating frequency of the compressor. In this way, the stable operation of the vane can be guaranteed to a certain extent, and the generation of abnormal vane noise can be avoided as much as possible; since the difference between the bottom temperature of the compressor and the middle temperature of the condenser is proportional to the exhaust temperature of the compressor, and the lower the frequency, the lower the speed of reduction of the difference between the bottom temperature of the compressor and the middle temperature of the condenser, the present invention determines the low-frequency operation lower limit of the compressor according to the exhaust temperature of the compressor, which can ensure that the difference between the bottom temperature of the compressor and the middle temperature of the condenser at low frequency is large to a certain extent, thereby improving the reliability of the air conditioner.

[0068] In addition, the exhaust temperature of the compressor can be increased by adjusting the opening of the electronic expansion valve of the outdoor unit and / or adjusting the speed of the outdoor fan, which is conducive to controlling the stable operation of the vane and improving the abnormal sound of the vane when the compressor runs at a lower frequency. When the outdoor temperature is low, the exhaust temperature is often at a low level due to the influence of the outdoor temperature. At this time, adding a variety of exhaust temperature increase control strategies cannot solve the problem of low-frequency vane sound. Therefore, under low outdoor temperature conditions, if it is detected that the exhaust temperature of the compressor is less than or equal to the first exhaust temperature threshold, the compressor is controlled to run at the first preset frequency, and the vane of the compressor at this frequency can run more stably, avoiding abnormal vane sound as much as possible.

[0069] Corresponding to the above embodiments, the present application also proposes a control device for a compressor.

[0070] Reference Figure 3 The compressor control device 300 includes: a first determination module 310 and a second determination module 320 .

[0071] The first determination module 310 is used to determine whether the air conditioner meets the preset frequency adjustment condition when the air conditioner is running in the cooling mode. The second determination module 320 is used to determine the operating frequency of the compressor according to the exhaust temperature of the compressor.

[0072] According to one embodiment of the present invention, the first determination module 310 is specifically used to determine that the air conditioner meets the frequency adjustment condition when the air conditioner operates in cooling mode for a first preset time or the operating frequency of the compressor reaches a first preset frequency, and the first preset frequency is determined based on the operating frequency of the compressor when an abnormal sound occurs in the vane.

[0073] According to one embodiment of the present invention, the second determination module 320 is specifically used to control the compressor to operate at a first preset frequency and for a second preset time when the exhaust temperature of the compressor is less than or equal to a first exhaust temperature threshold; wherein the first exhaust temperature threshold is determined based on the exhaust temperature of the compressor when abnormal noise occurs in the vane.

[0074] According to one embodiment of the present invention, the second determination module 320 is also used to control the compressor to operate at a second preset frequency when the exhaust temperature of the compressor is greater than a second exhaust temperature threshold; wherein the second exhaust temperature threshold is greater than the first exhaust temperature threshold, and the second preset frequency is less than the first preset frequency.

[0075] According to an embodiment of the present invention, the second determination module 320 is further configured to keep the operating frequency of the compressor unchanged when the exhaust temperature of the compressor is greater than the first exhaust temperature threshold and less than or equal to the second exhaust temperature threshold.

[0076] According to one embodiment of the present invention, the opening degree of the electronic expansion valve of the outdoor unit is adjusted, and / or the rotation speed of the outdoor fan is adjusted.

[0077] According to an embodiment of the present invention, the opening degree of the electronic expansion valve is controlled to be reduced, and the upper limit of the opening degree of the electronic expansion valve is limited.

[0078] According to one embodiment of the present invention, the outdoor fan is controlled to operate at a preset minimum speed.

[0079] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the compressor control method are also applicable to the compressor control device of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0080] The control device of the present invention reduces the lower limit of low-frequency operation when the exhaust temperature of the compressor is sufficient, that is, allows the compressor to further reduce the operating frequency, and increases the lower limit of low-frequency operation when the exhaust temperature of the compressor is insufficient, that is, increases the operating frequency of the compressor. In this way, the stable operation of the vane can be guaranteed to a certain extent, and the generation of abnormal vane noise can be avoided as much as possible.

[0081] Corresponding to the above embodiments, the present application also proposes a computer-readable storage medium.

[0082] The computer-readable storage medium of the present application stores a compressor control program thereon, and the compressor control program implements the aforementioned compressor control method when executed by a processor.

[0083] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the compressor control method are also applicable to the computer-readable storage medium of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0084] Corresponding to the above embodiments, the present application also proposes a controller.

[0085] See also Figure 4 As shown, the controller 400 of the present application includes a memory 410, a processor 420, and a compressor control program stored in the memory 410 and executable on the processor 420. When the processor 420 executes the compressor control program, the aforementioned compressor control method is implemented.

[0086] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the compressor control method are also applicable to the controller of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0087] Corresponding to the above embodiments, the present application also proposes a compressor.

[0088] See also Figure 5As shown, the compressor 500 of the present application includes a memory 510, a processor 520, and a compressor control program stored in the memory 510 and executable on the processor 520. When the processor 520 executes the compressor control program, the aforementioned compressor control method is implemented.

[0089] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the compressor control method are also applicable to the compressor of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0090] Corresponding to the above embodiments, the present application also proposes an air conditioner.

[0091] The air conditioner of the present application includes the aforementioned controller 400, or the aforementioned compressor 500, or the aforementioned compressor control device 300.

[0092] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the compressor control method are also applicable to the controller of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0093] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0094] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some 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.

[0096] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0097] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling a compressor, characterized in that: The method comprises: When the air conditioner is operated in a cooling mode, determining that the air conditioner meets a preset frequency adjustment condition; The operating frequency of the compressor is determined according to the exhaust temperature of the compressor.

2. The control method according to claim 1, characterized in that: Determining that the air conditioner meets the frequency adjustment condition includes: When the air conditioner operates in cooling mode for a first preset time or the operating frequency of the compressor reaches a first preset frequency, it is determined that the air conditioner meets the frequency adjustment condition, and the first preset frequency is determined based on the operating frequency of the compressor when an abnormal sound occurs in the sliding vane.

3. The control method according to claim 1, characterized in that: Determining the operating frequency of the compressor according to the exhaust temperature of the compressor includes: When the exhaust temperature of the compressor is less than or equal to a first exhaust temperature threshold, the compressor is controlled to operate at a first preset frequency and last for a second preset time; wherein the first exhaust temperature threshold is determined based on the exhaust temperature of the compressor when an abnormal sound occurs in the sliding vane.

4. The control method according to claim 1, characterized in that: Determining the operating frequency of the compressor according to the exhaust temperature of the compressor also includes: When the exhaust temperature of the compressor is greater than a second exhaust temperature threshold, the compressor is controlled to operate at a second preset frequency; wherein the second exhaust temperature threshold is greater than the first exhaust temperature threshold, and the second preset frequency is less than the first preset frequency.

5. The control method according to claim 4, characterized in that: Determining the operating frequency of the compressor according to the exhaust temperature of the compressor also includes: When the exhaust temperature of the compressor is greater than the first exhaust temperature threshold and less than or equal to the second exhaust temperature threshold, the operating frequency of the compressor is kept unchanged.

6. The control method according to any one of claims 1 to 5, characterized in that: The method further comprises: The opening of the electronic expansion valve of the outdoor unit is adjusted, and / or the rotation speed of the outdoor fan is adjusted.

7. The control method according to claim 6, characterized in that: Adjust the opening of the electronic expansion valve of the outdoor unit, including: The opening degree of the electronic expansion valve is controlled to be reduced, and the upper limit of the opening degree of the electronic expansion valve is limited.

8. The control method according to claim 6, characterized in that: Adjust the speed of the outdoor fan, including: The outdoor fan is controlled to run at a preset minimum speed.

9. A compressor control device, characterized in that: include: A first determination module, configured to determine, when the air conditioner is operating in a cooling mode, that the air conditioner satisfies a preset frequency adjustment condition; The second determination module is used to determine the operating frequency of the compressor according to the exhaust temperature of the compressor.

10. A computer-readable storage medium, characterized in that: A compressor control program is stored thereon, and when the compressor control program is executed by a processor, a compressor control method according to any one of claims 1-8 is implemented.

11. A controller, characterized in that: The invention comprises a memory, a processor and a control program of a compressor which is stored in the memory and can be run on the processor. When the processor executes the control program of the compressor, the control method of the compressor according to any one of claims 1 to 8 is implemented.

12. A compressor, characterized in that: The invention comprises a memory, a processor and a control program of a compressor which is stored in the memory and can be run on the processor. When the processor executes the control program of the compressor, the control method of the compressor according to any one of claims 1 to 8 is implemented.

13. An air conditioner, characterized in that: Includes the controller as claimed in claim 11, or the compressor as claimed in claim 12, or the control device for the compressor as claimed in claim 9.

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