WO2023071153A1

WO2023071153A1 - Defrosting control method for air conditioner, and air conditioner control apparatus and air conditioner

Info

Publication number: WO2023071153A1
Application number: PCT/CN2022/093296
Authority: WO
Inventors: 尹义金; 矫立涛; 冯景学; 刘帅; 周星宇
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-10-28
Filing date: 2022-05-17
Publication date: 2023-05-04
Also published as: CN114061031A

Abstract

Provided in the present application are a defrosting control method for an air conditioner, and an air conditioner control apparatus and an air conditioner. The defrosting control method for an air conditioner comprises: starting a heating mode of an air conditioner, and when a first outdoor heat exchanger operates, acquiring an initial operation power and the current operation power of a compressor; and when the current operation power is smaller than the initial operation power, controlling the air conditioner to execute a defrosting operation on the first outdoor heat exchanger, and controlling a second outdoor heat exchanger to be started. In the present application, according to a relationship between an initial operation power and the current operation power of a compressor in a heating mode, an air conditioner is controlled to execute a defrosting operation on a first outdoor heat exchanger, and a second outdoor heat exchanger is controlled to be started, so as to continue to deliver heat to an indoor environment. Such a method is simple, and the first outdoor heat exchanger is defrosted without affecting the heating of the indoor environment, thereby preventing the comfort level of a user from being affected by the fluctuations in an indoor environment temperature caused by defrosting the first outdoor heat exchanger, and thus improving the user experience.

Description

Air conditioner defrosting control method, control device and air conditioner

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202111265917.0 and titled "An air conditioner defrosting control method, control device, and air conditioner" filed on October 28, 2021, which is incorporated herein by reference in its entirety .

technical field

The present application relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method, a control device and an air conditioner.

Background technique

With the rapid development of society and the continuous improvement of people's living standards, people's requirements for the quality of life are getting higher and higher. As an important electrical device, air conditioners have gradually entered thousands of households and are used by everyone. Usually the well-known function of the air conditioner is the cooling and heating function. However, when the air conditioner is used in winter, the outdoor opportunity will frost as the air conditioner runs for a long time. Cause damage to the air conditioner compressor and reduce the performance of the air conditioner.

When the air conditioner is running at low temperature for a period of time, it will be severely frosted. At this time, the external unit of the air conditioner needs to be defrosted; However, there is a problem that heat cannot be sent to the room during defrosting, which causes fluctuations in the temperature of the indoor environment and affects user comfort.

Contents of the invention

The present application provides an air conditioner defrosting control method, a control device and an air conditioner, which are used to solve the problem that heat cannot be sent to the room during defrosting in the prior art, which causes fluctuations in the temperature of the indoor environment and affects user comfort.

The present application provides an air conditioner defrosting control method, including: starting the heating mode of the air conditioner, and obtaining the initial operating power and the current operating power of the compressor when the first outdoor heat exchanger is running; If the power is less than the initial operating power, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.

According to the air conditioner defrosting control method provided in this application, when the current operating power is less than the initial operating power, controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and controlling the start of the second outdoor heat exchanger includes : Determine the difference between the adjacent current operating power; in the continuous time, when the difference is in an increasing trend, control the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and control the second outdoor heat exchanger start up.

According to the air conditioner defrosting control method provided in this application, in the continuous time, when the difference is on the increase trend, the air conditioner is controlled to perform the defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start further The method includes: when the difference is increasing and the difference is greater than or equal to a preset power, controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and controlling the second outdoor heat exchanger to start.

According to the air conditioner defrosting control method provided in the present application, controlling the air conditioner to perform the defrosting operation on the first outdoor heat exchanger includes: controlling the heating device to heat the first outdoor heat exchanger.

According to the air conditioner defrosting control method provided in this application, controlling the heating device to heat the first outdoor heat exchanger specifically includes: acquiring the current coil temperature of the first outdoor heat exchanger; temperature, control the heating device to heat the first outdoor heat exchanger with the first preset power; when the coil temperature is greater than or equal to the first preset temperature and less than the second preset temperature , controlling the heating device to heat the first outdoor heat exchanger with a second preset power; when the coil temperature is greater than or equal to the second preset temperature and lower than the frost point temperature, controlling the heating device to use the second preset power Three preset powers heat the first outdoor heat exchanger; wherein the first preset power is greater than the second preset power, and the second preset power is greater than the third preset power.

According to the air conditioner defrosting control method provided in the present application, it further includes: when the defrosting time is less than or equal to the first preset time length, and the coil temperature is greater than or equal to the third preset temperature, controlling the defrosting operation of the air conditioner to turn off or, when the defrosting time is greater than or equal to a second preset duration, the defrosting operation of the air conditioner is controlled to be turned off, wherein the second preset duration is longer than the first preset duration.

According to the air conditioner defrosting control method provided in the present application, when the defrosting time is less than or equal to the first preset duration, and the coil temperature is greater than or equal to the third preset temperature, controlling the defrosting operation of the air conditioner to turn off further includes: When the defrosting time is less than or equal to a third preset time length and the coil temperature is greater than or equal to a fourth preset temperature, control the defrosting operation of the air conditioner to turn off, wherein the third preset time length is shorter than the first preset time length For a set time, the fourth preset temperature is greater than the third preset temperature.

The present application also provides an air conditioner control device, including: an acquisition module: used to acquire the initial operating power and current operating power of the compressor when the air conditioner is in the heating mode and the first outdoor heat exchanger is running; the control module: It is used for controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger and controlling the start of the second outdoor heat exchanger when the current operating power is less than the initial operating power.

The present application also provides an air conditioner, including the above-mentioned air conditioner control device.

The present application also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the air conditioner defrosting as described above in any one of the above is realized. The steps of the control method.

The present application provides an air conditioner defrosting control method, a control device, and an air conditioner. By obtaining the initial operating power and the current operating power of the compressor in the heating mode, the current frosting situation of the first outdoor heat exchanger is known; When the current operating power is less than the initial operating power, the air conditioner is controlled to defrost the first outdoor heat exchanger, and at the same time, the second outdoor heat The heat exchanger is connected to the first outdoor heat exchanger, and the indoor heat exchanger is connected to the second outdoor heat exchanger to continue heating the indoor environment, and then defrost the first outdoor heat exchanger; according to the current The method of controlling the air conditioner to defrost the first outdoor heat exchanger by changing the power of the compressor is simple. It defrosts the first outdoor heat exchanger without affecting the heating of the indoor environment, and avoids the defrosting of the first outdoor heat exchanger. The indoor environment temperature fluctuates due to the defrosting of the device, which affects the comfort of the user and improves the user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are the For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

FIG. 1 is a schematic flow chart of an air-conditioning defrosting control method provided by the present application;

Fig. 2 is a structural schematic diagram of the air-conditioning defrosting system provided by the present application;

FIG. 3 is a schematic structural diagram of the electronic device provided by the present application;

Reference signs:

1: Indoor heat exchanger; 2: The first outdoor heat exchanger; 3: The second outdoor heat exchanger;

4: compressor; 5: heating device.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are part of the embodiments of this application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

An air conditioner defrosting control method, control device and air conditioner provided by the present application will be described below with reference to FIGS. 1 to 3 .

An air conditioner defrosting control method provided in this embodiment includes: Step 100: Start the heating mode of the air conditioner, and obtain the initial operating power and current operating power of the compressor when the first outdoor heat exchanger is running; step 200: When the current operating power is less than the initial operating power, control the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and control the second outdoor heat exchanger to start.

The air conditioner provided in this embodiment includes an indoor heat exchanger, a first outdoor heat exchanger, and a second outdoor heat exchanger. When the air conditioner is started, the indoor heat exchanger is connected to the first outdoor heat exchanger to heat the indoor environment.

Referring to FIG. 1 , the air conditioner defrosting control method provided by this embodiment, step 100, starts the heating mode of the air conditioner, and obtains the initial operating power and current operating power of the compressor when the first outdoor heat exchanger is running; specifically If the heating mode of the air conditioner is turned on, the indoor heat exchanger, the first outdoor heat exchanger, and the compressor form a circulation flow path, and the power monitoring device is used to detect the operating power of the compressor, and obtain the power of the compressor when the air conditioner is just running. , which is the initial operating power P ₀ of the compressor; during the running process, the current operating power of the compressor is detected in real time, which is the current operating power P _n of the compressor.

Further, in step 200, when the current operating power is less than the initial operating power, control the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and control the start of the second outdoor heat exchanger; specifically, the power monitoring device detects the compression in real time. The operating power of the machine, when it is detected that the current operating power P _n of the compressor is lower than the initial operating power P ₀ of the compressor, there is frost on the first outdoor heat exchanger, which hinders the operation of the compressor, and the air conditioner is controlled Perform the defrosting operation on the first outdoor heat exchanger, and control the start of the second outdoor heat exchanger at the same time, and continue to supply heat to the indoor environment, so that the first outdoor heat exchanger that is defrosting does not heat, and the second outdoor heat exchanger that is heating The effect that the heat exchanger does not defrost, that is, the defrosting does not stop.

In this embodiment, by obtaining the initial operating power and current operating power of the compressor in the heating mode, the current frosting situation of the first outdoor heat exchanger is known; when the current operating power is less than the initial operating power, the air conditioner is controlled to One outdoor heat exchanger performs defrosting operation, and at the same time controls the start of the second outdoor heat exchanger to continue to supply heat to the indoor environment; that is, the indoor heat exchanger is disconnected from the first outdoor heat exchanger by controlling the air conditioner, and the indoor heat exchanger The heat exchanger is connected with the second outdoor heat exchanger to continue to heat the indoor environment, and then defrost the first outdoor heat exchanger; this kind of air conditioner is controlled to defrost the first outdoor heat exchanger according to the current compressor power change. The method of defrosting is simple. It defrosts the first outdoor heat exchanger without affecting the heating of the indoor environment, so as to avoid the temperature fluctuation of the indoor environment caused by the defrosting of the first outdoor heat exchanger and affect the comfort of the user. Improve user experience.

On the basis of the above embodiments, when the current operating power is less than the initial operating power, controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and controlling the start of the second outdoor heat exchanger includes: determining the adjacent current operating power In continuous time, when the difference is increasing, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.

Start the heating mode of the air conditioner, and the monitoring device detects the current operating power of the compressor in real time. Specifically, the initial operating power of the compressor is obtained as P ₀ . After 60 minutes, the current operating power of the compressor is obtained as P ₁ . After 70 minutes, the compression The current operating power of the compressor is P ₂ , and the current operating power of the compressor is detected after 80 minutes as P ₃ ; determine the difference between P ₁ and P ₂ ΔP ₁ and the difference between P ₂ and P ₃ ΔP ₂ , in When ΔP ₁ is less than ΔP ₂ , the rate at which the operating power of the compressor decreases gradually increases, and the current frosting of the first outdoor heat exchanger affects the current operating power of the compressor. Frost operation, while controlling the start of the second outdoor heat exchanger to continue to deliver heat to the indoor environment.

In the case where ΔP ₁ is greater than or equal to ΔP ₂ , the rate of reduction of compressor power is gentle at this time, the frost on the first outdoor heat exchanger has little influence on the current operating power of the compressor, and the air conditioner is controlled to the initial state (air conditioner starts operating mode at the time) to run.

This embodiment controls the defrosting operation of the air conditioner according to the decreasing rate of the current operating power of the compressor; that is, in the continuous time, when the difference between adjacent current operating powers is on an increasing trend, the air conditioner is controlled to exchange heat with the first outdoor The controller performs the defrosting operation, controls the second outdoor heat exchanger of the air conditioner to start, and continues to supply heat to the indoor environment; when the current operating power decreases slowly, the impact on the user experience is small, and the air conditioner is controlled to run in the initial state. This control method is simple and efficient, directly controls the defrosting operation of the air conditioner through the operating power of the compressor, reduces the number of defrosting, and can avoid indoor environment fluctuations caused by defrosting the first outdoor heat exchanger, affecting user comfort Spend.

In this embodiment, there is no specific limitation on the time of two adjacent power detections, which can be set according to actual needs.

On the basis of the above-mentioned embodiments, in a continuous time period, when the difference is on an increasing trend, controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and controlling the start of the second outdoor heat exchanger further includes: In the case of an increasing trend and the difference is greater than or equal to the preset power, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.

In a preferred embodiment, the heating mode of the air conditioner is started, the initial operating power of the compressor is P ₀ , the preset power is set to 250W, and the current operating power of the compressor is detected to be P ₄ , P ₅ and P ₆ , determine the difference ΔP ₄ between P ₄ and P ₅ and the difference ΔP ₅ between P ₅ and P ₆ , when ΔP ₄ is less than ΔP ₅ , and both ΔP ₄ and ΔP ₅ are greater than or equal to the preset When the power is set to 250W, the operating power of the compressor decreases rapidly at this time, and the difference between the adjacent current operating power is greater than or equal to 250W, and the frosting of the current first outdoor heat exchanger seriously affects the current operating power of the compressor. , control the air conditioner to perform defrosting operation on the first outdoor heat exchanger, and at the same time control the start of the second outdoor heat exchanger to continue supplying heat to the indoor environment.

When ΔP ₄ is less than ΔP ₅ , and at least one of ΔP ₄ and ΔP ₅ is less than a preset power of 250W, the air conditioner is controlled to run in an initial state.

This embodiment controls the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and controls the second The outdoor heat exchanger is activated and continues to deliver heat to the indoor environment; this control method more accurately controls the defrosting operation of the air conditioner on the first outdoor heat exchanger, which can reduce the frequency of defrosting.

In this embodiment, there is no specific limitation on the preset power, which may be limited according to actual conditions, and it only needs to meet user requirements.

On the basis of the above embodiments, controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger includes: controlling a heating device to heat the first outdoor heat exchanger.

Specifically, the first outdoor heat exchanger and the second outdoor heat exchanger are respectively connected to the heating device, the heating mode of the air conditioner is started, and when the current operating power of the compressor is less than the initial operating power of the compressor, the air conditioner is controlled to be disconnected. The connection between the indoor heat exchanger and the first outdoor heat exchanger, the heating device is controlled to heat the first outdoor heat exchanger, and the frost on the first outdoor heat exchanger absorbs heat and melts; at the same time, the connection between the indoor heat exchanger and the second The outdoor heat exchanger is connected and continues to deliver heat to the indoor environment.

Further, after the second outdoor heat exchanger is started for a period of time and the operating power of the compressor is stable, the power monitoring device starts to continue monitoring the current operating power of the compressor. When the current operating power of the compressor is less than the initial operating power Next, control the air conditioner to disconnect the connection between the indoor heat exchanger and the second outdoor heat exchanger, control the heating device to heat the second outdoor heat exchanger, and the frost on the second outdoor heat exchanger will melt after absorbing heat; The heat exchanger is connected to the first outdoor heat exchanger, and the first outdoor heat exchanger is controlled to continue to deliver heat to the indoor environment. After the current operating power of the compressor is stable, the detection device starts to continue monitoring the current operating power of the compressor. So cycle.

In this embodiment, the heating device generates heat, so that the frost on the first outdoor heat exchanger or the second outdoor heat exchanger absorbs heat and melts, thereby achieving the purpose of defrosting; this control method is simple and can effectively defrost.

In this embodiment, the heating device is not specifically limited, and it may be a solar heating structure or an electric heating structure, and it only needs to heat and defrost the first outdoor heat exchanger or the second outdoor heat exchanger.

On the basis of the above embodiments, controlling the heating device to heat the first outdoor heat exchanger specifically includes: obtaining the current coil temperature of the first outdoor heat exchanger; when the coil temperature is lower than the first preset temperature, Control the heating device to heat the first outdoor heat exchanger with the first preset power; when the coil temperature is greater than or equal to the first preset temperature and less than the second preset temperature, control the heating device to heat the first outdoor heat exchanger with the second preset power. power to heat the first outdoor heat exchanger; when the coil temperature is greater than or equal to the second preset temperature and lower than the frost point temperature, control the heating device to heat the first outdoor heat exchanger with the third preset power ; Wherein the first preset power is greater than the second preset power, and the second preset power is greater than the third preset power.

In a specific embodiment, the first preset temperature is set to -20°C, the second preset temperature is set to -15°C, and the frost point temperature is set to 0°C; the first preset power is 2000W, and the second preset power is 1500W, the third preset power is 1000W; the coil temperature of the first outdoor heat exchanger is detected by the temperature monitoring device, and the coil temperature of the first outdoor heat exchanger is obtained; when the coil temperature is -25°C, At this time, the coil temperature is lower than the first preset temperature -20°C, and the heating device is controlled to heat and defrost the first outdoor heat exchanger with the first preset power of 2000W; when the coil temperature is -18°C At this time, the coil temperature is higher than the first preset temperature -20°C and lower than the second preset temperature -15°C, and the heating device is controlled to heat the first outdoor heat exchanger with the second preset power of 1500W. Defrost; when the coil temperature is detected to be -5°C, and the coil temperature is greater than -15°C and less than the frost point temperature of 0°C, the heating device is controlled to use the third preset power of 1000W for the first The outdoor heat exchanger is used for heating and defrosting.

In this embodiment, by monitoring the coil temperature of the first outdoor heat exchanger, the heating device is controlled to heat and defrost the first outdoor heat exchanger according to the coil temperature; in this control method, the first outdoor heat exchanger is monitored according to the coil temperature. According to the frosting condition of the heater, the heating device is controlled to heat the first outdoor heat exchanger with different powers, which can speed up the defrosting speed, save the defrosting time, rationally utilize resources, and avoid waste.

In this embodiment, there are no specific limitations on the first preset temperature, the second preset temperature, the frost point temperature, the first preset power, the second preset power, and the third preset power, which can be defined according to actual conditions, so that The first preset power is greater than the second preset power, and the second preset power is greater than the third preset power, which only needs to meet user requirements.

On the basis of the above embodiments, the air conditioner defrosting control method provided by this embodiment further includes: when the defrosting time is less than or equal to the first preset duration, and the coil temperature is greater than or equal to the third preset temperature, controlling The defrosting operation of the air conditioner is turned off; or, when the defrosting time is greater than or equal to a second preset duration, the defrosting operation of the air conditioner is controlled to be turned off, wherein the second preset duration is longer than the first preset duration.

In one embodiment, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger. When the defrosting time is 50S and the coil temperature is 10°C, the defrosting time at this time is less than the first preset duration of 60S. , the coil temperature is greater than the third preset temperature by 5°C, it can be known that the current frost on the first outdoor heat exchanger has been cleared or the remaining frost can be cleared by using the residual heat of the coil, and the defrosting operation of the air conditioner is controlled to be turned off; According to the relationship between the defrosting time and the first preset duration, and the relationship between the current coil temperature and the third preset temperature, the defrosting operation of the air conditioner is controlled in time to shut down, so as to avoid wasting resources when starting for a long time.

In another embodiment, when the defrosting time is 20 minutes, the defrosting time at this time is greater than the second preset time length of 15 minutes, and the frost on the first outdoor heat exchanger can be completely removed within 20 minutes, and the air conditioner is controlled to defrost Frost operation is off; this air-conditioning defrosting control method can more thoroughly remove the frost on the first outdoor heat exchanger.

The second preset duration in this embodiment is not specifically limited, and it only needs to completely remove the frost on the first outdoor heat exchanger.

On the basis of the above embodiments, when the defrosting time is less than or equal to the first preset duration, and the coil temperature is greater than or equal to the third preset temperature, controlling the defrosting operation of the air conditioner to turn off further includes: when the defrosting time is less than is equal to the third preset time length, and the coil temperature is greater than or equal to the fourth preset temperature, control the defrosting operation of the air conditioner to turn off, wherein the third preset time length is less than the first preset time length, and the fourth preset temperature is greater than the third preset temperature.

When there is a lot of frost on the first outdoor heat exchanger, the defrosting time is less than or equal to the first preset duration of 60S, and the coil temperature is greater than the third preset temperature of 5°C, the air conditioner is controlled to turn off the defrosting operation , it may not be possible to completely remove the frost on the first outdoor heat exchanger. At this time, there is residual frost on the first outdoor heat exchanger, and the defrosting operation needs to be continued; specifically, when the defrosting time is When the temperature is 18°C, the defrosting time is less than or equal to the first preset time length of 60S, and the coil temperature is greater than or equal to the fourth preset temperature of 15°C, and the defrosting operation of the air conditioner is controlled to be turned off; this method can more effectively control the air conditioner’s effect on the second The frost on the first outdoor heat exchanger should be removed to avoid incomplete removal from affecting the continued use of the first outdoor heat exchanger.

In this embodiment, by detecting the relationship between the coil temperature and the third preset temperature and the fourth preset temperature during different defrosting times, the defrosting operation of the air conditioner is controlled to be closed, which can avoid excessive frosting and defrosting Not thorough.

In this embodiment, there is no specific limitation on the third preset time length and the fourth preset temperature, which can be defined according to user needs, so that the third preset time length is less than the first preset time length, and the fourth preset temperature is greater than the third preset time length. Just preset the temperature.

The air-conditioning control device provided by the present application is described below, and the air-conditioning control device described below and the air-conditioning defrosting control method described above can be referred to in correspondence.

This embodiment also provides an air conditioner control device. The air conditioner control device for operation includes: an acquisition module: used to acquire the initial operating power of the compressor and the current Operating power; control module: used to control the air conditioner to perform a defrosting operation on the first outdoor heat exchanger and control the start of the second outdoor heat exchanger when the current operating power is less than the initial operating power.

This embodiment also provides an air conditioner, including the above-mentioned air conditioner control device, and also includes an air conditioner defrosting system, as shown in Figure 2, specifically including an indoor heat exchanger 1, a compressor 4, a first outdoor heat exchanger 2, The second outdoor heat exchanger 3 and the heating device 5, the indoor heat exchanger 1, the compressor 4, and the first outdoor heat exchanger 2 form a circulating flow path, and the first outdoor heat exchanger 2 and the second outdoor heat exchanger 3 are respectively It is connected to the heating device 5. When the first outdoor heat exchanger 2 is frosted and needs to be defrosted, the control indoor heat exchanger 1 is disconnected from the first outdoor heat exchanger 2, so that the indoor heat exchanger 1 and the second outdoor heat exchanger The two outdoor heat exchangers 3 are connected, and the heating device 5 heats and defrosts the first outdoor heat exchanger 2; The heater 2 is connected, and the heating device 5 heats and defrosts the second outdoor heat exchanger 3 .

Further, the air conditioner provided in this embodiment also includes a temperature monitoring device and a power monitoring device, wherein the temperature monitoring device is used to detect the temperature of the upper coil of the first outdoor heat exchanger 2 and the temperature of the upper coil of the second outdoor heat exchanger 3 According to the coil temperature, the heating device is controlled to heat and defrost the first outdoor heat exchanger 2 or the second outdoor heat exchanger 3 with different heating power. The power monitoring device is used to detect the current operating power of the compressor 4. When the current operating power of the compressor 4 is less than the initial operating power of the compressor 4, the air conditioner is controlled to perform a defrosting mode on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled. The second outdoor heat exchanger is activated and continues to deliver heat to the indoor environment.

FIG. 3 illustrates a schematic diagram of the physical structure of an electronic device. As shown in FIG. 3 , the electronic device may include: a processor (processor) 310, a communication interface (Communications Interface) 320, a memory (memory) 330 and a communication bus 340, Wherein, the processor 310 , the communication interface 320 , and the memory 330 communicate with each other through the communication bus 340 . The processor 310 can call the logic instructions in the memory 330 to execute the defrosting control method of the air conditioner. The method includes: obtaining the initial operating power and Current operating power; when the current operating power is less than the initial operating power, control the air conditioner to perform a defrosting operation on the first outdoor heat exchanger, and control the second outdoor heat exchanger to start.

In addition, the above-mentioned logic instructions in the memory 330 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application is essentially 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, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

On the other hand, the present application also provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer When executing, the computer can execute the air-conditioning defrosting control method provided by the above-mentioned methods, the method includes: in the heating mode of the air-conditioning, when the first outdoor heat exchanger is running, obtain the initial operating power and the current operating power of the compressor power; when the current operating power is less than the initial operating power, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.

In yet another aspect, the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the air-conditioning defrosting control methods provided above, the method includes : In the heating mode of the air conditioner, when the first outdoor heat exchanger is running, obtain the initial operating power and current operating power of the compressor; The heat exchanger performs a defrosting operation, and controls the second outdoor heat exchanger to start.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

The above embodiments are only used to illustrate the present application, but not to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and all should cover within the scope of the claims of this application.

Claims

A defrosting control method for an air conditioner, comprising:

Start the heating mode of the air conditioner, and obtain the initial operating power and current operating power of the compressor when the first outdoor heat exchanger is running;

When the current operating power is less than the initial operating power, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.
The air conditioner defrosting control method according to claim 1, wherein when the current operating power is less than the initial operating power, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to perform a defrosting operation. Heater startup includes:

determining the difference between adjacent said current operating power;

In a continuous time period, when the difference is on an increasing trend, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.
The air conditioner defrosting control method according to claim 2, wherein, in the continuous time, when the difference is on an increasing trend, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to perform a defrosting operation. Heater start further includes:

When the difference is on an increasing trend and the difference is greater than or equal to a preset power, the air conditioner is controlled to perform a defrosting operation on the first outdoor heat exchanger, and the second outdoor heat exchanger is controlled to start.
The air conditioner defrosting control method according to any one of claims 1-3, wherein controlling the air conditioner to perform a defrosting operation on the first outdoor heat exchanger comprises: controlling a heating device to heat the first outdoor heat exchanger.
The air conditioner defrosting control method according to claim 4, wherein controlling the heating device to heat the first outdoor heat exchanger specifically comprises:

Obtain the current coil temperature of the first outdoor heat exchanger;

When the coil temperature is lower than a first preset temperature, controlling the heating device to heat the first outdoor heat exchanger with a first preset power;

When the coil temperature is greater than or equal to the first preset temperature and lower than a second preset temperature, control the heating device to heat the first outdoor heat exchanger with a second preset power;

When the coil temperature is greater than or equal to the second preset temperature and lower than the frost point temperature, control the heating device to heat the first outdoor heat exchanger with a third preset power;

Wherein the first preset power is greater than the second preset power, and the second preset power is greater than the third preset power.
The air-conditioning defrosting control method according to claim 5, further comprising:

When the defrosting time is less than or equal to the first preset duration, and the coil temperature is greater than or equal to the third preset temperature, the defrosting operation of the air conditioner is controlled to be turned off;

Or, when the defrosting time is greater than or equal to a second preset duration, the defrosting operation of the air conditioner is controlled to be turned off, wherein the second preset duration is longer than the first preset duration.
The air conditioner defrosting control method according to claim 6, wherein, in the case that the defrosting time is less than or equal to the first preset duration, and the coil temperature is greater than or equal to the third preset temperature, the defrosting operation of the air conditioner is controlled Closure further includes:

When the defrosting time is less than or equal to a third preset time length and the coil temperature is greater than or equal to a fourth preset temperature, control the defrosting operation of the air conditioner to turn off, wherein the third preset time length is shorter than the first preset time length For a set time, the fourth preset temperature is greater than the third preset temperature.
An air conditioner control device, comprising:

Obtaining module: used to obtain the initial operating power and current operating power of the compressor when the first outdoor heat exchanger is running in the heating mode of the air conditioner;

A control module: used to control the air conditioner to perform a defrosting operation on the first outdoor heat exchanger and control the start of the second outdoor heat exchanger when the current operating power is less than the initial operating power.
An air conditioner, comprising the air conditioner control device according to claim 8.
An electronic device, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein, when the processor executes the program, the computer program according to any one of claims 1 to 7 is realized. The steps of the air-conditioning defrosting control method described in the item.