阅读说明：本技术 控制空调压缩机频率稳定的方法、装置、电子设备 (Method and device for controlling frequency stability of air conditioner compressor and electronic equipment ) 是由 王月亮 吕福俊 张岐军 于 2021-08-13 设计创作，主要内容包括：本发明提供一种控制空调压缩机频率稳定的方法、装置及电子设备。本发明提供一种控制空调压缩机频率稳定的方法包括：预设多个排气保护温度；基于每个排气保护温度预设相应的频率控制信息；获取压缩机的排气温度,当排气温度等于排气保护温度时,执行排气保护温度所相应的频率控制信息；若执行的频率控制信息为一次停机或两次以第一速率降频运转,则开启排气保护模式。本发明提供的控制空调压缩机频率稳定的控制方法,能够减小相邻排气保护温度点之间的温差,从而减小压缩机升降频的幅度,使压缩机在恶劣工况下能够快速达到稳定运行,减小压缩机的噪音,同时,能够增大压缩机保持当前频率运转的温度区间,使压缩机更快地趋于稳定运转。(The invention provides a method and a device for controlling the frequency stability of an air conditioner compressor and electronic equipment. The invention provides a method for controlling the frequency stability of an air conditioner compressor, which comprises the following steps: presetting a plurality of exhaust protection temperatures; presetting corresponding frequency control information based on each exhaust protection temperature; acquiring the exhaust temperature of the compressor, and executing frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature; and if the executed frequency control information is one-time shutdown or two-time down-conversion operation at the first rate, starting an exhaust protection mode. The control method for controlling the frequency stability of the air conditioner compressor can reduce the temperature difference between adjacent exhaust protection temperature points, thereby reducing the frequency increasing and decreasing amplitude of the compressor, enabling the compressor to quickly achieve stable operation under severe working conditions, reducing the noise of the compressor, and simultaneously increasing the temperature interval for keeping the current frequency operation of the compressor, and enabling the compressor to quickly tend to stably operate.)

1. A method for controlling the frequency stability of an air conditioner compressor is characterized by comprising the following steps:

presetting a plurality of exhaust protection temperatures;

presetting corresponding frequency control information based on each exhaust protection temperature;

acquiring the exhaust temperature of a compressor, and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature;

and if the executed frequency control information is one-time shutdown or two-time down-conversion operation at the first rate, starting an exhaust protection mode.

2. The method of claim 1, wherein the step of presetting a plurality of discharge protection temperatures further comprises:

presetting a first exhaust protection temperature, a second exhaust protection temperature, a third exhaust protection temperature, a fourth exhaust protection heat preservation temperature and a fifth exhaust protection temperature;

wherein the first exhaust protection temperature, the second exhaust protection temperature, the third exhaust protection temperature, the fourth exhaust protection temperature and the fifth exhaust protection temperature are sequentially increased in temperature value.

3. The method for controlling the frequency stabilization of the air conditioner compressor according to claim 2, wherein the step of obtaining the discharge temperature of the compressor, and when the discharge temperature is equal to the discharge protection temperature, executing the frequency control information corresponding to the discharge protection temperature further comprises:

when the exhaust temperature is equal to the first exhaust protection temperature, controlling the compressor to perform frequency-up operation;

when the exhaust temperature is equal to the second exhaust protection temperature, controlling a compressor to keep running at the current frequency;

and when the exhaust temperature is equal to the third exhaust protection temperature, controlling the compressor to run down at a second speed.

4. The method of claim 3, wherein the step of controlling the compressor to run down at the second rate when the discharge temperature equals the third discharge protection temperature further comprises:

presetting a sixth exhaust protection temperature, and controlling a compressor to keep running at the current frequency when the exhaust temperature is equal to the sixth exhaust protection temperature;

wherein the sixth exhaust protection temperature is greater than the second exhaust protection temperature and less than the third exhaust protection temperature.

5. The method for controlling the frequency stabilization of the air conditioner compressor according to claim 4, wherein the step of obtaining the discharge temperature of the compressor and executing the frequency control information corresponding to the discharge protection temperature when the discharge temperature is equal to the discharge protection temperature further comprises:

controlling a compressor to run down at the first rate when the discharge temperature is equal to the fourth discharge protection temperature;

when the exhaust temperature is equal to the sixth exhaust protection temperature, controlling a compressor to keep running at the current frequency;

wherein the first rate is greater than the second rate.

6. The method for controlling the frequency stabilization of the air conditioner compressor according to claim 5, wherein the step of obtaining the discharge temperature of the compressor, and when the discharge temperature is equal to the discharge protection temperature, executing the frequency control information corresponding to the discharge protection temperature further comprises:

and when the exhaust temperature is reduced to the first exhaust protection temperature, controlling the frequency-up operation of the compressor.

7. The method for controlling the frequency stabilization of the air conditioner compressor according to any one of claims 2-6, wherein the step of obtaining the discharge temperature of the compressor, and when the discharge temperature is equal to the discharge protection temperature, executing the frequency control information corresponding to the discharge protection temperature further comprises:

and when the exhaust temperature is equal to the fifth exhaust protection temperature, controlling the compressor to stop.

8. The method as claimed in claim 2, wherein the step of turning on the discharge protection mode if the executed frequency control information is one shutdown or two down-frequency operations at the first rate further comprises:

and when the compressor operates at every frequency reduction, the temperature value of the second exhaust protection temperature is preset to be reduced by a preset degree, and the reduced temperature value is determined as the second exhaust protection temperature.

9. An apparatus for controlling frequency stabilization of an air conditioner compressor, comprising:

the first preset module is used for presetting a plurality of exhaust protection temperatures;

a second preset module for presetting corresponding frequency control information based on each exhaust protection temperature;

an acquisition module for acquiring an exhaust temperature, the acquisition module further for acquiring a number of times frequency control information is executed;

the judging module is used for judging whether the exhaust temperature is equal to the exhaust protection temperature or not;

and the control module is used for controlling the compressor to execute frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature, and the control module is also used for starting an exhaust protection mode when the executed frequency control information is one-time shutdown or two-time frequency reduction operation at a first rate.

10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for controlling the frequency stabilization of an air conditioner compressor according to any one of claims 1 to 8 when executing the program.

Technical Field

The invention relates to the technical field of air condition compressors, in particular to a method for controlling the frequency stability of an air condition compressor, a device for controlling the frequency stability of the air condition compressor and electronic equipment.

Background

When the air conditioner operates under abominable operating mode, when compressor exhaust temperature surpassed limit frequency temperature control point, the compressor chance operation of falling the frequence in order to reduce exhaust temperature, after exhaust temperature reduces, compressor operating frequency can rise again, so go on repeatedly and go up and down frequently, and compressor frequency is unstable, can produce great noise, has influenced user's experience.

Disclosure of Invention

The invention provides a method for controlling the frequency stability of an air conditioner compressor, a device for controlling the frequency stability of the air conditioner compressor and electronic equipment, which are used for solving the defect of unstable compressor frequency in the prior art.

The invention provides a method for controlling the frequency stability of an air conditioner compressor, which comprises the following steps: presetting a plurality of exhaust protection temperatures; presetting corresponding frequency control information based on each exhaust protection temperature; acquiring the exhaust temperature of a compressor, and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature; and if the executed frequency control information is one-time shutdown or two-time down-conversion operation at the first rate, starting an exhaust protection mode.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, the step of presetting a plurality of exhaust protection temperatures further comprises the following steps: presetting a first exhaust protection temperature, a second exhaust protection temperature, a third exhaust protection temperature, a fourth exhaust protection heat preservation temperature and a fifth exhaust protection temperature; wherein the first exhaust protection temperature, the second exhaust protection temperature, the third exhaust protection temperature, the fourth exhaust protection temperature and the fifth exhaust protection temperature are sequentially increased in temperature value.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, the step of obtaining the exhaust temperature of the compressor and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature further comprises the following steps: when the exhaust temperature is equal to the first exhaust protection temperature, controlling the compressor to perform frequency-up operation; when the exhaust temperature is equal to the second exhaust protection temperature, controlling a compressor to keep running at the current frequency; and when the exhaust temperature is equal to the third exhaust protection temperature, controlling the compressor to run down at a second speed.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, when the exhaust temperature is equal to the third exhaust protection temperature, the step of controlling the compressor to run down at the second speed further comprises the following steps: presetting a sixth exhaust protection temperature, and controlling a compressor to keep running at the current frequency when the exhaust temperature is equal to the sixth exhaust protection temperature; wherein the sixth exhaust protection temperature is greater than the second exhaust protection temperature and less than the third exhaust protection temperature.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, the step of obtaining the exhaust temperature of the compressor and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature further comprises the following steps: controlling a compressor to run down at the first rate when the discharge temperature is equal to the fourth discharge protection temperature; when the exhaust temperature is equal to the sixth exhaust protection temperature, controlling a compressor to keep running at the current frequency; wherein the first rate is greater than the second rate.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, the step of acquiring the exhaust temperature of the compressor and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature further comprises the following steps: and when the exhaust temperature is reduced to the first exhaust protection temperature, controlling the frequency-up operation of the compressor.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, the step of obtaining the exhaust temperature of the compressor and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature further comprises the following steps: and when the exhaust temperature is equal to the fifth exhaust protection temperature, controlling the compressor to stop.

According to the method for controlling the frequency stability of the air conditioner compressor provided by the invention, if the executed frequency control information is one shutdown or two times of frequency reduction operation at the first rate, the step of starting the exhaust protection mode further comprises the following steps: and when the compressor operates at every frequency reduction, the temperature value of the second exhaust protection temperature is preset to be reduced by a preset degree, and the reduced temperature value is determined as the second exhaust protection temperature.

The invention provides a device for controlling the frequency stability of an air-conditioning compressor, which comprises: the first preset module is used for presetting a plurality of exhaust protection temperatures; a second preset module for presetting corresponding frequency control information based on each exhaust protection temperature; an acquisition module for acquiring an exhaust temperature, the acquisition module further for acquiring a number of times frequency control information is executed; the judging module is used for judging whether the exhaust temperature is equal to the exhaust protection temperature or not; and the control module is used for controlling the compressor to execute frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature, and the control module is also used for starting an exhaust protection mode when the executed frequency control information is one-time shutdown or two-time frequency reduction operation at a first rate.

The invention provides electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and is characterized in that the processor executes the program to realize the method for controlling the frequency stability of the air conditioner compressor.

According to the control method for controlling the frequency stability of the air conditioner compressor, provided by the invention, the temperature difference between adjacent exhaust protection temperature points can be reduced by presetting a plurality of exhaust protection temperatures and presetting frequency control information corresponding to each exhaust protection temperature, so that the frequency increasing and decreasing amplitude of the compressor is reduced, the compressor can rapidly achieve stable operation under severe working conditions, and the noise of the compressor is reduced. By setting the exhaust protection mode, the temperature interval for keeping the compressor to operate at the current frequency can be increased, and the compressor can more quickly tend to operate stably.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a flow chart of a method for controlling the frequency stability of an air conditioner compressor according to the present invention;

FIG. 2 is a logic diagram of the method for controlling the frequency stability of the air conditioner compressor according to the present invention;

FIG. 3 is a schematic structural diagram of an apparatus for controlling the frequency stability of an air conditioner compressor according to the present invention;

FIG. 4 is a schematic structural diagram of an electronic device provided by the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The features of the terms first and second in the description and in the claims of the invention may explicitly or implicitly include one or more of these features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The method and apparatus for controlling the frequency stabilization of the air conditioner compressor according to the present invention will be described with reference to fig. 1 to 4.

As shown in fig. 1, in one embodiment of the present invention, a method for controlling the frequency stabilization of an air conditioner compressor includes the steps of:

step 01: a plurality of exhaust protection temperatures are preset.

Specifically, in the prior art, the number of preset discharge protection temperatures is small, usually two, and when the discharge temperature is equal to the first discharge protection temperature, the compressor is operated at an increased frequency, and when the discharge temperature is equal to the second discharge protection temperature, the compressor is operated at a decreased frequency. After the compressor operates in a frequency reducing mode, the exhaust temperature of the compressor can be reduced, when the exhaust temperature is reduced to the first exhaust protection temperature, the compressor operates in a frequency increasing mode, when the exhaust temperature is equal to the second exhaust protection temperature again, the compressor operates in a frequency reducing mode again, the compressor operates in a frequency increasing mode repeatedly, the frequency increasing and decreasing amplitude of the compressor is large, the frequency is unstable, and large noise is generated. In the embodiment of the invention, a plurality of exhaust protection temperatures are preset, for example, more than three exhaust protection temperatures are preset, so that the temperature difference between adjacent exhaust protection temperatures can be reduced, the frequency increasing and decreasing amplitude of the compressor is reduced, and the frequency is stable.

For example, if 5 exhaust protection temperatures are preset, the temperature values of the 5 exhaust protection temperatures are respectively: 85 ℃, 92 ℃, 98 ℃, 102 ℃ and 110 ℃.

Step 02: the corresponding frequency control information is preset based on each exhaust protection temperature.

Specifically, different frequency control information is preset for different exhaust protection temperatures, and when the exhaust temperature of the compressor reaches the preset exhaust protection temperature, the operation of the compressor can be controlled according to the preset frequency control information.

For example, if the preset exhaust protection temperature is 85 ℃, the corresponding frequency control information is the up-conversion operation of the compressor, if the preset exhaust protection temperature is 92 ℃, the corresponding frequency control information is the operation of the compressor according to the current frequency, if the preset exhaust protection temperature is 102 ℃, the corresponding frequency control information is the down-conversion operation of the compressor.

Step 03: and acquiring the exhaust temperature, and executing frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is greater than the exhaust protection temperature.

Specifically, after the air conditioner is started, the compressor is in frequency-up operation, the exhaust temperature of the compressor can be gradually increased, when the exhaust temperature reaches a first exhaust protection temperature, the compressor can be controlled to work according to the frequency control information corresponding to the exhaust protection temperature, and when the exhaust temperature reaches a second exhaust protection temperature, the compressor can be controlled to work according to the frequency control information corresponding to the exhaust protection temperature.

For example, if the first discharge protection temperature is 85 ℃, and the preset corresponding frequency control information is the frequency increasing operation of the compressor, the frequency increasing operation of the compressor is controlled when the discharge temperature of the compressor reaches 85 ℃, and if the second discharge protection temperature is 92 ℃, the frequency increasing operation of the compressor is controlled according to the current frequency when the discharge temperature of the compressor reaches 92 ℃.

Step 04: and if the executed frequency control information is one-time shutdown or two-time down-conversion operation at the first rate, starting an exhaust protection mode.

Specifically, the frequency control information corresponding to the highest value of the preset exhaust protection temperatures is used for controlling the compressor to stop, and the frequency control information corresponding to the next highest value of the preset exhaust protection temperatures is used for performing frequency reduction operation at a first speed. When the exhaust temperature of the compressor reaches the highest value of the preset exhaust protection temperatures, the compressor is stopped, and the exhaust protection mode is started at the moment.

Or when the exhaust temperature of the compressor reaches the next highest value of the preset exhaust protection temperatures, the compressor operates in a frequency reduction mode at the first rate, after the frequency reduction, the compressor operates in a frequency increase mode when the exhaust temperature is lower, and when the exhaust temperature reaches the next highest value of the preset exhaust protection temperatures again, the compressor operates in a frequency reduction mode at the first rate again, and at the moment, the exhaust protection mode is started. After the exhaust protection mode is started, the compressor keeps the exhaust protection temperature value of the current frequency operation to be reduced by a certain degree every time the compressor operates in a frequency reduction mode until the frequency of the compressor is stable.

According to the control method for controlling the frequency stability of the air conditioner compressor, provided by the invention, the temperature difference between adjacent exhaust protection temperature points can be reduced by presetting a plurality of exhaust protection temperatures and presetting frequency control information corresponding to each exhaust protection temperature, so that the frequency increasing and decreasing amplitude of the compressor is reduced, the compressor can rapidly achieve stable operation under severe working conditions, and the noise of the compressor is reduced. By setting the exhaust protection mode, the temperature interval for keeping the compressor to operate at the current frequency can be increased, and the compressor can more quickly tend to operate stably.

Further, in one embodiment of the present invention, the step of presetting a plurality of exhaust protection temperatures further comprises: presetting a first exhaust protection temperature, a second exhaust protection temperature, a third exhaust protection temperature, a fourth exhaust protection temperature and a fifth exhaust protection temperature; and the temperature values of the first exhaust protection temperature, the second exhaust protection temperature, the third exhaust protection temperature, the fourth exhaust protection temperature and the fifth exhaust protection temperature are sequentially increased.

Specifically, in the present embodiment, there are 5 preset exhaust gas guard temperatures, and each exhaust gas guard temperature is gradually increased. For example, the temperature values of 5 exhaust protection temperatures can be preset as follows: the first exhaust protection temperature is 85 deg.c, the second exhaust protection temperature is 92 deg.c, the third exhaust protection temperature is 98 deg.c, the fourth exhaust protection temperature is 102 deg.c, and the fifth exhaust protection temperature is 110 deg.c.

It can be understood that: the above-mentioned 5 preset exhaust protection temperature values are only one embodiment of the present invention, and the specific values of the exhaust protection temperature may be set separately as needed.

It should be noted that: in this embodiment, the detected discharge temperature is the temperature of the gas discharged after the compressor performs work, so that the detected discharge temperature is the discharge temperature after the compressor adjusts the frequency after a period of time after the compressor adjusts the frequency. For example, when the compressor is in the frequency-up operation, when the discharge temperature reaches the discharge protection temperature, the compressor needs to be controlled to operate in the frequency-down mode, and the discharge temperature will decrease after the compressor operates in the frequency-down mode for a certain time.

As shown in fig. 2, in an embodiment of the present invention, the step of obtaining the discharge temperature of the compressor, and when the discharge temperature is equal to the discharge protection temperature, executing the frequency control information corresponding to the discharge protection temperature further includes: when the exhaust temperature is equal to the first exhaust protection temperature, controlling the compressor to perform frequency-up operation; when the exhaust temperature is equal to the second exhaust protection temperature, controlling the compressor to keep the current frequency running; and controlling the compressor to run down at the second speed when the exhaust temperature is equal to the third exhaust protection temperature.

Specifically, in the present embodiment, the preset corresponding frequency control information is to control the up-conversion operation of the compressor based on the first discharge protection temperature. When the discharge temperature of the compressor is equal to the first discharge protection temperature, for example, the discharge temperature is equal to 85 ℃, the compressor is in frequency-up operation, and the discharge temperature of the compressor is increased accordingly.

Further, in the present embodiment, based on the second discharge protection temperature, the preset corresponding frequency control information maintains the current frequency operation for controlling the compressor. When the discharge temperature of the compressor is equal to the second discharge protection temperature, for example, the discharge temperature is equal to 92 ℃, the compressor keeps the current frequency operation.

Further, in this embodiment, based on the third discharge protection temperature, the preset corresponding frequency control information is to control the compressor to operate down at the second speed. When the compressor maintains the current frequency operation, the compressor is down-cycled at a second rate when the discharge temperature is equal to a third discharge protection temperature, such as a discharge temperature equal to 98 deg.C. At this time, the compressor needs to be down-clocked because the discharge temperature of the compressor is high, the compressor can be down-clocked slowly because the difference between the third discharge protection temperature and the second discharge protection temperature is small, and optionally, the second speed of the compressor can be 10 s/Hz.

Further, after the compressor operates at the second speed, the discharge temperature of the compressor decreases accordingly, and at this time, a sixth discharge protection temperature needs to be preset, and when the discharge temperature of the compressor decreases to the sixth discharge protection temperature, the compressor is controlled to keep operating at the current frequency, specifically, the sixth discharge protection temperature is greater than the second discharge protection temperature and less than the third discharge protection temperature.

Specifically, assuming that the preset sixth exhaust protection temperature is 97 ℃, the frequency control information corresponding to the sixth exhaust protection temperature is used for controlling the compressor to keep the current frequency operation. When the compressor operates at the second speed, the discharge temperature of the compressor is reduced, and when the discharge temperature of the compressor is reduced to 97 ℃, the compressor is controlled to keep operating at the current frequency. Because the exhaust of the compressor has hysteresis, when the compressor keeps the current frequency operation, the exhaust temperature can also be reduced, if the exhaust temperature is more than or equal to the second exhaust protection temperature, the execution is carried out according to the frequency control information of the second exhaust protection temperature, and the compressor keeps the current frequency operation; and if the exhaust temperature is reduced to the first exhaust protection temperature, executing according to the frequency control information of the first exhaust protection temperature, and increasing the frequency of the compressor.

And when the exhaust temperature of the compressor is equal to the fourth exhaust protection temperature, controlling the compressor to run down at a first speed, wherein the first speed is greater than the second speed.

Specifically, in the present embodiment, based on the fourth discharge protection temperature, the preset corresponding frequency control information is to control the compressor to operate down at the first rate. When the exhaust temperature reaches the third exhaust protection temperature, the compressor operates at the second rate, because the exhaust has hysteresis, when the second rate is smaller, the exhaust temperature reaches the fourth exhaust protection temperature, and when the exhaust temperature reaches the fourth exhaust protection temperature, if the exhaust temperature is equal to 102 ℃, the compressor operates at the first rate. At this time, since the discharge temperature of the compressor is high, the compressor needs to be down-converted, since the difference between the fourth discharge protection temperature and the second discharge protection temperature is large, the compressor needs to be down-converted quickly, and alternatively, the first speed of the compressor may be 1 s/Hz.

Further, in the present embodiment, when the compressor is down-operated at the first rate, the compressor is controlled to maintain the current frequency operation when the discharge temperature is lowered to the sixth discharge protection temperature. When the compressor keeps the current frequency operation, the exhaust temperature can also drop to a certain extent due to the hysteresis of the exhaust, if the exhaust temperature drops to the second exhaust protection temperature or stops dropping within the interval that the second exhaust protection temperature is higher than the sixth exhaust protection temperature, then the frequency of the compressor is in a stable state, and the compressor keeps the current frequency operation; if the exhaust temperature is reduced to the first exhaust protection temperature or is higher than the first exhaust protection temperature and lower than the second exhaust protection temperature, the reduction is stopped, and at the moment, the frequency of the compressor is lower, and the frequency needs to be increased to enable the frequency of the compressor to be stable.

As shown in fig. 2, in an embodiment of the present invention, the step of obtaining the discharge temperature of the compressor, and when the discharge temperature is equal to the discharge protection temperature, the step of executing the frequency control information corresponding to the discharge protection temperature further includes: and when the exhaust temperature is equal to the fifth exhaust protection temperature, controlling the compressor to stop.

Specifically, in the present embodiment, the corresponding frequency control information is preset to control the compressor to stop based on the fifth discharge protection temperature. When the discharge temperature of the compressor is too high, the compressor can be controlled to stop when the fifth discharge protection temperature is reached, and optionally, the fifth discharge protection temperature can be 110 ℃ or other temperatures.

As shown in fig. 2, in an embodiment of the present invention, if the executed frequency control information is a first shutdown or a second shutdown at a first rate, the step of starting the exhaust protection mode further includes: and when the compressor operates at every frequency reduction, the temperature value of the preset second exhaust protection temperature is reduced by a preset degree, and the reduced temperature value is determined as the second exhaust protection temperature.

Specifically, during the operation of the compressor, the temperature value of the second discharge protection temperature decreases by a preset degree each time the compressor is down-cycled. For example, if the preset degree is 1 ℃, when the discharge temperature of the compressor reaches the third discharge protection temperature, the compressor performs a frequency reduction operation, at this time, the second discharge protection temperature is decreased from 92 ℃ to 91 ℃, when the discharge temperature reaches the fourth discharge protection temperature, the compressor performs a frequency reduction operation again, at this time, the second discharge protection temperature is decreased from 91 ℃ to 90 ℃. Further, after the compressor is down-converted, if the discharge temperature is low, the compressor is controlled to be up-converted, and when the discharge temperature reaches the third discharge protection temperature again, the compressor is down-converted again, and at this time, the second discharge protection temperature is 89 ℃. Supposing that after the compressor operates in a frequency-reducing mode, the exhaust temperature does not decrease when the exhaust temperature decreases to 93 ℃, at the moment, the frequency of the compressor is stable, the second exhaust protection temperature 89 ℃ at the moment is stored in the system, after the air conditioner is powered on again, when the exhaust temperature of the compressor triggers the exhaust protection mode again, the value of the second exhaust protection temperature is 89 ℃, namely when the exhaust temperature of the compressor reaches 89 ℃, the compressor starts to keep the current frequency to operate, so that the temperature interval for keeping the current frequency operation of the compressor is enlarged, and the compressor can more quickly tend to operate stably.

According to the method for controlling the frequency stability of the air conditioner compressor, provided by the embodiment of the invention, the second exhaust protection temperature is added between the first exhaust protection temperature and the third exhaust protection temperature, so that the temperature difference between the first exhaust protection temperature and the third exhaust protection temperature is reduced, the frequency raising amplitude of the compressor is reduced, and the frequency of the compressor tends to be stable more quickly. The temperature difference between the third exhaust protection temperature and the second exhaust protection temperature is reduced by adding the sixth exhaust protection temperature; the frequency reduction amplitude of the compressor is reduced, so that the frequency of the compressor can quickly tend to be stable, and the noise of the compressor is reduced. Through setting up the exhaust protection mode, increased the compressor and kept the temperature interval of current frequency operation, made the compressor can tend to stable operation more fast.

The embodiment of the invention also provides the air conditioner, and the exhaust pipe of the air conditioner compressor is provided with the temperature sensor to detect the exhaust temperature of the compressor.

The following describes an apparatus for controlling frequency stability of an air conditioner compressor according to the present invention, and the apparatus for controlling frequency stability of an air conditioner compressor described below and the method for controlling frequency stability of an air conditioner compressor described above may be referred to in correspondence with each other.

As shown in fig. 3, the apparatus for controlling the frequency stability of the air conditioner compressor according to the embodiment of the present invention includes: the device comprises a first presetting module 101, a second presetting module 102, an obtaining module 103, a judging module 104 and a control module 105. The first preset module 101 is configured to preset a plurality of exhaust protection temperatures, the second preset module 102 is configured to preset corresponding frequency control information based on each exhaust protection temperature, the obtaining module 103 is configured to obtain an exhaust temperature, the obtaining module 103 is further configured to obtain the number of times of executing the frequency control information, the determining module 104 is configured to determine whether the exhaust temperature is equal to the exhaust protection temperature, the control module 105 is configured to control the compressor to execute the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature, and meanwhile, the control module 105 is further configured to start an exhaust protection mode when the executed frequency control information is one-time shutdown or two-time frequency-reduction operation at a first rate.

Further, the first preset module 101 is further configured to preset a first exhaust protection temperature, a second exhaust protection temperature, a third exhaust protection temperature, a fourth exhaust protection temperature, a fifth exhaust protection temperature, and a sixth exhaust protection temperature.

The determining module 104 is further configured to determine whether the exhaust temperature is equal to a first exhaust protection temperature, a second exhaust protection temperature, a third exhaust protection temperature, a fourth exhaust protection temperature, a fifth exhaust protection temperature, and a sixth exhaust protection temperature.

The control module 105 is further configured to control the compressor to increase in frequency when the discharge temperature is equal to the first discharge protection temperature; when the exhaust temperature is equal to the second exhaust protection temperature, controlling the compressor to keep the current frequency running; when the exhaust temperature is equal to the third exhaust protection temperature, controlling the compressor to run at a second speed in a frequency reduction mode; when the exhaust temperature is equal to the sixth exhaust protection temperature, controlling the compressor to keep the current frequency running; when the exhaust temperature is equal to the fourth exhaust protection temperature, controlling the compressor to run at the first speed in a frequency reduction mode; and when the exhaust temperature is equal to the fifth exhaust protection temperature, controlling the compressor to stop.

Further, in an embodiment of the present invention, the apparatus for controlling the frequency stability of the air conditioner compressor further includes a second preset module and a determining module, wherein the second preset module is configured to preset a reduction degree of the temperature value of the second exhaust protection temperature when the compressor operates at a reduced frequency once. The determination module is used for determining a temperature value of the second exhaust protection temperature when the exhaust protection mode is started.

As shown in fig. 4, an embodiment of the present invention further provides an electronic device, where the electronic device may include: a processor (processor)810, a communication Interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication Interface 820 and the memory 830 communicate with each other via the communication bus 840. The processor 810 may call logic instructions in the memory 830 to perform a method of controlling the frequency stability of the air conditioner compressor.

It should be noted that, when being implemented specifically, the electronic device in this embodiment may be a server, a PC, or other devices, as long as the structure includes the processor 810, the communication interface 820, the memory 830, and the communication bus 840 shown in fig. 4, where the processor 810, the communication interface 820, and the memory 830 complete mutual communication through the communication bus 840, and the processor 810 may call the logic instructions in the memory 830 to execute the above method. The embodiment does not limit the specific implementation form of the electronic device.

In addition, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform a method for controlling air purification provided by the above methods, the method comprising: presetting a plurality of exhaust protection temperatures; presetting corresponding frequency control information based on each exhaust protection temperature; acquiring the exhaust temperature of a compressor, and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature; and if the executed frequency control information is one-time shutdown or two-time down-conversion operation at the first rate, starting an exhaust protection mode.

In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a processor, is implemented to perform the control method for air purification provided above, the method including: presetting a plurality of exhaust protection temperatures; presetting corresponding frequency control information based on each exhaust protection temperature; acquiring the exhaust temperature of a compressor, and executing the frequency control information corresponding to the exhaust protection temperature when the exhaust temperature is equal to the exhaust protection temperature; and if the executed frequency control information is one-time shutdown or two-time down-conversion operation at the first rate, starting an exhaust protection mode.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.