Air conditioner compressor startup control method, device and air conditioner

Abstract

The present invention relates to the technical field of air conditioning, and provides an air conditioner compressor startup control method, device and air conditioner, the air conditioner compressor startup control method comprising: obtaining the outdoor ambient temperature; according to the outdoor ambient temperature, controlling the air conditioner compressor to start and operate at the highest frequency of the outer ring temperature limit frequency; wherein the outer ring temperature limit frequency is the limited frequency range of the compressor operation under the current outdoor ambient temperature. The present invention can realize the rapid and safe startup of the air conditioner compressor under different ambient temperatures, effectively protect the compressor, and has the characteristics of safety, reliability, energy saving, etc.

Description

Technical Field

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

[0002] An air conditioner is a device that can achieve cooling or heating, mainly including an indoor unit and an outdoor unit. The outdoor unit is equipped with a compressor, which compresses the refrigerant and circulates it to achieve cyclic cooling or heating. In the related art, when the air conditioner compressor starts running, it starts at a fixed starting frequency. When it is under different outdoor ambient temperature conditions, the compressor is prone to start delay or even failure to start. Long-term use can easily cause damage to the compressor. Summary of the invention

[0003] The present invention provides an air conditioner compressor startup control method, device and air conditioner, which can realize fast and safe startup of the air conditioner compressor under different ambient temperatures, effectively protect the compressor, and have the characteristics of safety, reliability, energy saving, etc.

[0004] The present invention provides an air conditioner compressor startup control method, comprising:

[0005] Get the outdoor ambient temperature;

[0006] According to the outdoor ambient temperature, the compressor of the air conditioner is controlled to start running at the highest frequency of the outer ring temperature limit frequency; wherein the outer ring temperature limit frequency is the limited frequency range of the compressor operation under the current outdoor ambient temperature.

[0007] According to a method for starting and controlling an air conditioner compressor provided by the present invention, the steps of controlling the air conditioner compressor to start and operate at the highest frequency of the external temperature limit frequency according to the outdoor ambient temperature specifically include:

[0008] In response to the outdoor ambient temperature being greater than or equal to the target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit frequency;

[0009] If yes, control the compressor to start running at the current operating power;

[0010] If not, the compressor is controlled to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at a first frequency increase rate, and start running.

[0011] According to a method for starting and controlling an air conditioner compressor provided by the present invention, after controlling the compressor to start and run, the method further comprises the step of controlling the compressor to return oil with a first oil return time.

[0012] According to an air conditioner compressor startup control method provided by the present invention, the first frequency increase rate is 3 to 5 Hz / s; and the first oil return time is 20 to 40 s.

[0013] According to the present invention, a method for controlling the start-up of an air conditioner compressor includes the step of controlling the compressor of the air conditioner to start and operate at the highest frequency of the outer ring temperature limit frequency according to the outdoor ambient temperature, and further includes:

[0014] In response to the outdoor ambient temperature being lower than a target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit frequency;

[0015] If yes, control the compressor to start running at the current operating power;

[0016] If not, controlling the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at a second frequency increase rate, and starting the operation;

[0017] The second frequency increase rate is smaller than the first frequency increase rate.

[0018] According to an air conditioner compressor startup control method provided by the present invention, after controlling the compressor to start running, it also includes the step of controlling the compressor to return oil with a second oil return time, and the second oil return time is longer than the first oil return time.

[0019] According to an air conditioner compressor startup control method provided by the present invention, the second frequency increase rate is 1 to 2 Hz / s; and the second oil return time is 1 to 2 minutes.

[0020] According to the present invention, a method for starting and controlling an air conditioner compressor further comprises the following steps:

[0021] Determining the current operating power type of the compressor according to the outdoor ambient temperature;

[0022] The current operating power types of the compressor include: solar power supply, mains power supply and solar-mains hybrid power supply.

[0023] According to an air conditioner compressor startup control method provided by the present invention, the step of determining the current operating power type of the compressor according to the outdoor ambient temperature specifically includes:

[0024] In response to the outdoor ambient temperature being greater than or equal to the target preset temperature, determining that the current operating power type of the compressor is the solar power supply power or the solar-mains hybrid power supply power;

[0025] In response to the outdoor ambient temperature being lower than a target preset temperature, determining that the current operating power type of the compressor is the mains power supply.

[0026] The present invention also provides an air conditioner compressor startup control device, comprising:

[0027] An acquisition module is used to obtain the outdoor ambient temperature;

[0028] The control module is used to control the compressor of the air conditioner to start running at the highest frequency of the outer ring temperature limit according to the outdoor ambient temperature; wherein the outer ring temperature limit is the limited frequency range of the compressor operation under the current outdoor ambient temperature.

[0029] The present invention also provides an air conditioner, comprising: the above-mentioned air conditioner compressor start-up control device.

[0030] The air conditioner compressor start-up control method, device and air conditioner provided by the present invention obtain the outdoor ambient temperature and control the air conditioner compressor to start and operate at the highest frequency of the outer ring temperature limit according to the outdoor ambient temperature. It can operate at the highest frequency of the outer ring temperature limit corresponding to the outdoor ambient temperature at different outdoor ambient temperatures, thereby achieving rapid and safe starting of the air conditioner compressor, effectively protecting the compressor, and having the characteristics of safety, reliability, energy saving, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is one of the flow charts of the air conditioner compressor startup control method provided by the present invention;

[0033] Figure 2 This is the second flow chart of the air conditioner compressor startup control method provided by the present invention;

[0034] Figure 3 This is the third flow chart of the air conditioner compressor startup control method provided by the present invention;

[0035] Figure 4 It is a structural schematic diagram of the air conditioner compressor startup control device provided by the present invention;

[0036] Figure 5 It is a structural schematic diagram of the electronic device provided by the present invention.

[0037] Reference numerals:

[0038] 110: acquisition module; 120: detection module; 130: control module;

[0039] 210: processor; 220: communication interface; 230: memory;

[0040] 240: Communication bus. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms “first”, “second”, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 embodiment of the present invention. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Combine the following Figure 1-Figure 5 The invention describes an air conditioner compressor startup control method, device and air conditioner.

[0046] First, the structure of the air conditioner is roughly described. The air conditioner includes: an indoor unit and an outdoor unit. The indoor unit includes: indoor fan and indoor heat exchanger and other components. The outdoor unit includes: a compressor, an outdoor fan and an outdoor heat exchanger and other components. An electronic expansion valve is provided between the indoor heat exchanger and the outdoor heat exchanger. The compressor is connected to the indoor heat exchanger and the outdoor heat exchanger respectively to realize the refrigeration or heating cycle. Among them, taking refrigeration as an example, when the air conditioner is started, the high-temperature and high-pressure refrigerant gas generated by the compressor enters the outdoor heat exchanger to release heat and condense into refrigerant liquid. After being throttled by the electronic expansion valve, it becomes a low-temperature and low-pressure liquid, and then enters the indoor heat exchanger for heat absorption and refrigeration. The refrigerant evaporates into gas and is then sent to the compressor for compression, and the cycle continues.

[0047] The following is a description of the air conditioner compressor startup control method according to the first embodiment of the present invention. Figure 1 As shown, it mainly includes:

[0048] S1. Obtain the outdoor ambient temperature.

[0049] S2. According to the outdoor ambient temperature, the compressor of the air conditioner is controlled to start running at the highest frequency of the outer ring temperature limit frequency; wherein the outer ring temperature limit frequency is the limited frequency range of the compressor operation under the current outdoor ambient temperature.

[0050] Specifically, the outdoor ambient temperature can be detected in real time through a temperature sensor arranged on the outdoor unit, and the detected outdoor ambient temperature is sent to the controller. The controller receives the outdoor ambient temperature and processes it, and controls the compressor to start and operate at the highest frequency of the outer ring temperature limit frequency corresponding to the outdoor ambient temperature. This can enable the air conditioner compressor to start quickly and safely under different outdoor ambient temperatures, thereby effectively protecting the compressor.

[0051] According to one embodiment of the present invention, referring to Figure 2 As shown, according to the outdoor ambient temperature, the steps of controlling the compressor of the air conditioner to start running at the highest frequency of the external ambient temperature limit frequency specifically include:

[0052] S201, in response to the outdoor ambient temperature being greater than or equal to the target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit;

[0053] S202: If yes, control the compressor to start running at the current operating power;

[0054] S203: If not, control the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at the first frequency increase rate, and start the operation.

[0055] The embodiment of the present invention determines whether the current operating power of the air conditioner compressor can meet the maximum frequency of the current outer ring temperature limit frequency at a higher ambient temperature. If it can meet the maximum frequency, it is directly started with the current operating power to achieve the purpose of fast and safe startup; if it cannot meet the maximum frequency of the current outer ring temperature limit frequency, it is frequency-increased at the first frequency-increase rate until the maximum frequency of the current outer ring temperature limit frequency is reached to start operation. The present invention can achieve fast and safe startup of the compressor at a higher ambient temperature through frequency-increase design.

[0056] The target preset temperature of the present invention can be designed according to actual working conditions. For example, the target preset temperature can be 25 to 32°C.

[0057] Furthermore, after the compressor is controlled to start running, the method further comprises the following steps:

[0058] S204, controlling the compressor to return oil with a first oil return time.

[0059] During the operation of the compressor, the compressor lubricant is discharged from the compressor along with the refrigerant, and returns to the compressor after circulation. The refrigerant exists in two phases during the system circulation process, namely liquid refrigerant and vapor refrigerant. The lubricant is basically in liquid state. When the refrigerant changes from liquid to vapor state, the lubricant will precipitate from the refrigerant. Under the influence of many factors, they are likely to be stored in a certain component or a certain structural point, resulting in the lubricant being unable to flow back to the compressor smoothly, causing the compressor to lack oil. If the lack of oil is not resolved for a long time, it will lead to insufficient lubrication of the moving parts inside the compressor, dry burning and other faults, which will greatly accelerate the damage of the compressor and cause the air conditioner to fail to operate normally.

[0060] Therefore, the embodiment of the present invention controls the oil return of the compressor for a period of time to increase the oil return amount as much as possible, which can effectively ensure the oil return rate of the compressor and ensure its normal operation, thereby extending the service life of the compressor.

[0061] According to an embodiment of the present invention, the first frequency increase rate is 3-5 Hz / s; and the first oil return time is 20-40 s.

[0062] According to one embodiment of the present invention, referring to Figure 3 As shown, according to the outdoor ambient temperature, the step of controlling the compressor of the air conditioner to start running at the highest frequency of the external ambient temperature limit frequency also includes:

[0063] S205, in response to the outdoor ambient temperature being lower than the target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit;

[0064] S206: If yes, control the compressor to start running at the current operating power;

[0065] S207: If not, control the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at a second frequency increase rate, and start the operation; wherein the second frequency increase rate is less than the first frequency increase rate.

[0066] The embodiment of the present invention determines whether the operating power of the current air conditioner compressor can meet the maximum frequency of the current outer ring temperature limit frequency at a relatively low ambient temperature. If it can meet the maximum frequency, it is directly started with the current operating power to achieve the purpose of rapid and safe startup; if it cannot meet the maximum frequency of the current outer ring temperature limit frequency, it is frequency-increased at the second frequency-increase rate until the maximum frequency of the current outer ring temperature limit frequency is reached to start operation. The present invention can achieve rapid and safe startup of the compressor at a relatively low ambient temperature through frequency-increase design.

[0067] Furthermore, after the compressor is controlled to start running, the method further comprises the following steps:

[0068] S208, controlling the compressor to return oil with a second oil return time, and the second oil return time is longer than the first oil return time.

[0069] When the outdoor ambient temperature is greater than or equal to the target preset temperature, that is, the outdoor temperature is high, the compressor lubricating oil and the liquid refrigerant are miscible, and both can enter the compressor from the oil return hole at a faster speed; when the outdoor ambient temperature is lower than the target preset temperature, that is, the outdoor temperature is low, the compressor lubricating oil return effect is poor, resulting in oil shortage in the compressor.

[0070] Therefore, the embodiment of the present invention controls the oil return of the compressor to last for a period of time, and the second oil return time is longer than the first oil return time, so that the oil return amount can be increased as much as possible under low temperature conditions. This can effectively ensure the oil return rate of the compressor and ensure its normal operation, thereby extending the service life of the compressor.

[0071] According to an embodiment of the present invention, the second frequency increase rate is 1-2 Hz / s; and the second oil return time is 1-2 min.

[0072] Therefore, the air conditioner compressor startup control method provided by the embodiment of the present invention can adapt to different ambient temperatures, realize the rapid and safe startup and operation of the air conditioner compressor under different ambient temperatures, and protect the compressor and extend its service life.

[0073] According to one embodiment of the present invention, the air conditioner compressor startup control method of the present invention further includes the steps of:

[0074] According to the outdoor ambient temperature, determine the current operating power type of the compressor;

[0075] The current operating power types of the compressor include: solar power supply, mains power supply and solar-mains hybrid power supply.

[0076] It can be understood that solar power supply mainly refers to the power supply to the air conditioner through solar photovoltaic panels, and the current operating power of the air conditioner can be detected through MPPT; solar-mains hybrid power supply mainly refers to the power supply through solar energy and mains at the same time. When the current operating power type of the air conditioner is solar power supply or the solar-mains hybrid power supply, the purpose of reducing power loss can be achieved, and the user experience can be effectively improved.

[0077] According to one embodiment of the present invention, the step of determining the current operating power type of the compressor according to the outdoor ambient temperature specifically includes:

[0078] In response to the outdoor ambient temperature being greater than or equal to the target preset temperature, determining that the current operating power type of the compressor is solar power or solar-commercial hybrid power, thereby achieving energy saving;

[0079] In response to the outdoor environment temperature being lower than the target preset temperature, it is determined that the current operating power type of the compressor is mains power, thereby ensuring that the air conditioner compressor starts and operates normally.

[0080] The air conditioner compressor startup control device provided by the present invention is described below. The air conditioner compressor startup control device described below and the air conditioner compressor startup control method described above can be referenced to each other.

[0081] According to an embodiment of the second aspect of the present invention, referring to Figure 4 As shown, the present invention also provides an air conditioner compressor start control device, which mainly includes: an acquisition module 110 and a control module 130. The acquisition module 110 is mainly used to acquire the outdoor ambient temperature; the control module 130 is mainly used to control the compressor of the air conditioner to start and run at the highest frequency of the outer ring temperature limit frequency according to the outdoor ambient temperature; the outer ring temperature limit frequency is the limited frequency range of the compressor operation under the current outdoor ambient temperature.

[0082] The air conditioner compressor start-up control device of the embodiment of the present invention can control the air conditioner compressor to operate at the highest frequency of the outer ring temperature limit corresponding to the outdoor ambient temperature under different outdoor ambient temperatures, thereby achieving rapid and safe start-up of the air conditioner compressor and effectively protecting the compressor.

[0083] According to one embodiment of the present invention, referring to Figure 4As shown, the air conditioner compressor start-up control device of the present invention also includes: a detection module 120, the detection module 120 is used to detect the current operating power of the compressor in response to the outdoor ambient temperature being greater than or equal to the target preset temperature, and to determine whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit; if so, the compressor is controlled to start running with the current operating power through the control module 130; if not, the compressor is controlled to increase the frequency to the maximum frequency of the outer ring temperature limit at a first frequency increase rate through the control module 130, and start running.

[0084] In addition, the detection module 120 is also used to detect the current operating power of the compressor in response to the outdoor ambient temperature being lower than the target preset temperature, and to determine whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit; if so, the control module 130 is used to control the compressor to start running with the current operating power; if not, the control module 130 is used to control the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit at a second frequency increase rate, and start running; wherein the second frequency increase rate is lower than the first frequency increase rate.

[0085] According to an embodiment of the third aspect of the present invention, the present invention further provides an air conditioner, comprising: the air conditioner compressor start control device of the above embodiment. In addition, the type of the air conditioner includes but is not limited to a solar air conditioner.

[0086] The air conditioner of the embodiment of the present invention can realize fast and safe startup under different outdoor ambient temperatures, and has the characteristics of safety, reliability, energy saving, etc.

[0087] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5 As shown, the electronic device may include: a processor 210, a communication interface 220, a memory 230 and a communication bus 240, wherein the processor 210, the communication interface 220 and the memory 230 communicate with each other through the communication bus 240. The processor 210 may call the logic instructions in the memory 230 to execute the air conditioner compressor start control method, the method comprising: obtaining the outdoor ambient temperature; according to the outdoor ambient temperature, controlling the air conditioner compressor to start and operate at the highest frequency of the outer ring temperature limit frequency; wherein the outer ring temperature limit frequency is the limit frequency range of the compressor operation under the current outdoor ambient temperature.

[0088] In addition, the logic instructions in the above-mentioned memory 230 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0089] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the air conditioner compressor start-up control method provided by the above-mentioned methods, the method including: obtaining the outdoor ambient temperature; according to the outdoor ambient temperature, controlling the compressor of the air conditioner to start and operate at the highest frequency of the outer ring temperature limit; wherein the outer ring temperature limit is the limited frequency range of the compressor operation under the current outdoor ambient temperature.

[0090] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the air conditioner compressor start-up control method provided by the above-mentioned methods, the method comprising: obtaining the outdoor ambient temperature; according to the outdoor ambient temperature, controlling the compressor of the air conditioner to start and operate at the highest frequency of the outer ring temperature limit; wherein the outer ring temperature limit is the limited frequency range of the compressor operation under the current outdoor ambient temperature.

[0091] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0092] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for starting and controlling an air conditioner compressor, characterized in that: include: Get the outdoor ambient temperature; According to the outdoor ambient temperature, the compressor of the air conditioner is controlled to start running at the highest frequency of the outer ring temperature limit frequency; wherein the outer ring temperature limit frequency is the limit frequency range of the compressor operation under the current outdoor ambient temperature; According to the outdoor ambient temperature, the step of controlling the compressor of the air conditioner to start running at the highest frequency of the external ambient temperature limit frequency specifically comprises: In response to the outdoor ambient temperature being greater than or equal to the target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit frequency; If yes, control the compressor to start running at the current operating power; If not, control the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at a first frequency increase rate, and start the operation; Also includes the steps: determining the current operating power type of the compressor according to the outdoor ambient temperature; The current operating power types of the compressor include: solar power supply, mains power supply and solar-mains hybrid power supply.

2. The air conditioner compressor startup control method according to claim 1, characterized in that: After controlling the compressor to start running, the method further includes controlling the compressor to return oil with a first oil return time.

3. The air conditioner compressor startup control method according to claim 2, characterized in that: The first frequency increase rate is 3-5 Hz / s; the first oil return time is 20-40 s.

4. The air conditioner compressor startup control method according to claim 2, characterized in that: The step of controlling the compressor of the air conditioner to start and operate at the highest frequency of the outer ring temperature limit frequency according to the outdoor ambient temperature also includes: In response to the outdoor ambient temperature being lower than a target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit frequency; If yes, control the compressor to start running at the current operating power; If not, control the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at a second frequency increase rate, and start the operation; The second frequency increase rate is smaller than the first frequency increase rate.

5. The air conditioner compressor startup control method according to claim 4, characterized in that: After controlling the compressor to start running, the method further includes controlling the compressor to return oil with a second oil return time, and the second oil return time is longer than the first oil return time.

6. The air conditioner compressor startup control method according to claim 5, characterized in that: The second frequency increase rate is 1 to 2 Hz / s; the second oil return time is 1 to 2 minutes.

7. The air conditioner compressor startup control method according to any one of claims 2 to 6, characterized in that: The step of determining the current operating power type of the compressor according to the outdoor ambient temperature specifically comprises: In response to the outdoor ambient temperature being greater than or equal to the target preset temperature, determining that the current operating power type of the compressor is the solar power supply power or the solar-mains hybrid power supply power; In response to the outdoor ambient temperature being less than a target preset temperature, determining that the current operating power type of the compressor is the mains power supply.

8. An air conditioner compressor startup control device, characterized in that: include: An acquisition module is used to obtain the outdoor ambient temperature; A control module, configured to control the compressor of the air conditioner to start running at the highest frequency of the outer ring temperature limit frequency according to the outdoor ambient temperature; wherein the outer ring temperature limit frequency is a limited frequency range of the compressor running at the current outdoor ambient temperature; According to the outdoor ambient temperature, the step of controlling the compressor of the air conditioner to start running at the highest frequency of the external ambient temperature limit frequency specifically comprises: In response to the outdoor ambient temperature being greater than or equal to the target preset temperature, detecting the current operating power of the compressor, and determining whether the current operating power of the compressor can make the operating frequency of the compressor reach the maximum frequency of the outer ring temperature limit frequency; If yes, control the compressor to start running at the current operating power; If not, control the compressor to increase the frequency to the maximum frequency of the outer ring temperature limit frequency at a first frequency increase rate, and start the operation; Also includes the steps: determining the current operating power type of the compressor according to the outdoor ambient temperature; The current operating power types of the compressor include: solar power supply, mains power supply and solar-mains hybrid power supply.

9. An air conditioner, characterized in that: include: The air conditioner compressor startup control device as claimed in claim 8.

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