WO2024066365A1

WO2024066365A1 - Variable shunt noise reduction control method and system for air conditioner, and air conditioner

Info

Publication number: WO2024066365A1
Application number: PCT/CN2023/092744
Authority: WO
Inventors: 吕科磊; 赵凯强
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: 2022-09-30
Filing date: 2023-05-08
Publication date: 2024-04-04
Also published as: CN115435408A

Abstract

A variable shunt noise reduction control method and system for an air conditioner, and an air conditioner. The variable shunt noise reduction control method for an air conditioner comprises: acquiring the carrier frequency of an air conditioner control board and the motor modal frequency of an air conditioner compressor; and adjusting the motor modal frequency when a frequency difference between the motor modal frequency and the carrier frequency of the control board reaches a preset resonance value, such that the frequency difference is different from the preset resonance value, and in response to the adjustment of the motor modal frequency, controlling a shunting mode of the air conditioner.

Description

Air conditioner variable shunt noise reduction control method, system and air conditioner

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 2022112157450, filed on September 30, 2022, and entitled “Air Conditioner Variable Split Noise Reduction Control Method, System and Air Conditioner”, which is incorporated herein by reference in its entirety.

Technical Field

The present application relates to the technical field of air conditioning, and in particular to a variable shunt noise reduction control method and system for an air conditioner, and an air conditioner.

Background technique

An air conditioner is a device that can achieve cooling or heating. It is generally composed of components such as a compressor, condenser, throttle valve and evaporator to form a cooling or heating cycle loop, and is centrally controlled by a computer board to achieve cyclic cooling or heating.

At present, when the air conditioner is running at low frequency, when the computer board carrier frequency is close to the compressor motor modal frequency, it is easy to cause the compressor motor to resonate and generate electromagnetic noise, which seriously affects the user experience.

Summary of the invention

The present application provides a variable shunt noise reduction control method, system and air conditioner for an air conditioner, which can reduce or even eliminate electromagnetic noise, and can ensure stable operation of the air conditioner, effectively improving the user experience.

The present application provides a variable shunt noise reduction control method for an air conditioner, comprising:

Obtain the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

When the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, the motor modal frequency is adjusted so that the frequency difference is different from the resonance preset value, and in response to adjusting the motor modal frequency, the diversion mode of the air conditioner is controlled.

According to a variable shunt noise reduction control method for an air conditioner provided in the present application, the step of adjusting the motor modal frequency so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the motor modal frequency so that the frequency difference is different from the resonance preset value.

According to a variable shunt noise reduction control method for an air conditioner provided by the present application, in response to adjusting the motor modal frequency, the step of controlling the shunt mode of the air conditioner specifically includes:

In cooling mode, the motor modal frequency is increased to control the air conditioner to operate in a single-channel split mode;

In the heating mode, the motor modal frequency is reduced and the air conditioner is controlled to operate in the multi-way split mode.

According to a variable shunt noise reduction control method for an air conditioner provided in the present application, in response to adjusting the motor modal frequency, the step of controlling the shunt mode of the air conditioner also includes: obtaining the current operating ambient temperature of the air conditioner, and determining whether the air conditioner operates in cooling mode or heating mode based on the ambient temperature.

According to a variable shunt noise reduction control method for an air conditioner provided by the present application, after the step of controlling the shunt mode of the air conditioner, the method further includes:

Obtaining the exhaust temperature of the air conditioner compressor;

The opening of the air conditioner throttle valve is adjusted according to the exhaust temperature of the air conditioner compressor.

According to a variable split noise reduction control method for an air conditioner provided in the present application, the step of adjusting the opening of the air conditioner throttle valve according to the exhaust temperature of the air conditioner compressor specifically includes: comparing the exhaust temperature of the compressor with the target temperature, and adjusting the opening of the throttle valve according to the comparison result to keep the exhaust temperature of the compressor at the target temperature.

According to a variable shunt noise reduction control method for an air conditioner provided in the present application, when the frequency difference between the motor modal frequency and the carrier frequency of the computer board does not reach a preset resonance value, the air conditioner is controlled to maintain operation in the current state.

The present application also provides an air conditioner variable split noise reduction control system, comprising:

An acquisition module, used to acquire the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

The control module is used to adjust the motor modal frequency when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, so that the frequency difference is different from the resonance preset value, and control the diversion mode of the air conditioner in response to adjusting the motor modal frequency.

The present application also provides an air conditioner, comprising: the above-mentioned variable shunt noise reduction control system for the air conditioner.

The present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned variable shunt noise reduction control method for the air conditioner when executing the program.

The variable shunt noise reduction control method, system and air conditioner provided by the present application obtain the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor, and when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, adjust the motor modal frequency so that the frequency difference is different from the resonance preset value, thereby avoiding the resonance of the compressor motor and reducing electromagnetic noise; and in response to adjusting the motor modal frequency, controlling the shunt mode of the air conditioner, the air conditioner can be operated in a stable state to ensure the heat exchange effect of the air conditioner. Therefore, the present application can reduce or even eliminate electromagnetic noise, and can ensure the stable operation of the air conditioner, effectively improving the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of the structure of a variable flow splitter provided by the present application;

FIG2 is a schematic diagram of the structure of a heat exchanger provided in the present application;

FIG3 is a flow chart of a variable flow split noise reduction control method for an air conditioner provided in the present application;

FIG4 is a second flow chart of the variable shunt noise reduction control method for an air conditioner provided by the present application;

FIG5 is a schematic diagram of the structure of a variable shunt noise reduction control system for an air conditioner provided by the present application;

FIG. 6 is a schematic diagram of the structure of an electronic device provided in the present application.

Reference numerals:

1: reversing valve; 101: first communication port; 102: second communication port;

103: third communication port; 104: fourth communication port; 2: first flow diversion pipeline;

3: second diversion pipeline; 4: heat exchange pipeline; 5: one-way valve; 6: acquisition module;

7: control module; 801: processor; 802: communication interface; 803: memory;

804: Communication bus.

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 drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

In the description of the embodiments of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

In order to better understand the split mode of the air conditioner, the split mode of the air conditioner is first described with reference to FIG. 1 and FIG. 2 .

According to one embodiment of the present application, as shown in FIG. 1 and FIG. 2 , a variable flow divider device is provided in the outdoor heat exchanger of the air conditioner, and the variable flow divider device includes: a reversing valve 1, a first flow divider pipeline 2, a second flow divider pipeline 3 and at least two heat exchange pipelines 4. Among them, the first flow divider pipeline 2 is connected to the second flow divider pipeline 3 through at least two heat exchange pipelines 4; the first flow divider pipeline 2 and the second flow divider pipeline 3 are both provided with a main pipeline and a plurality of branch pipelines, and a one-way valve 5 can be provided in some of the branch pipelines as needed.

The reversing valve 1 is a two-position four-way reversing valve, and is provided with a first communication port 101, a second communication port 102, a third communication port 103 and a fourth communication port 104. The reversing valve 1 has a first position and a second position. The first communication port 101 is connected to the refrigerant inlet, and the third communication port 103 is connected to the refrigerant outlet.

The air conditioner of the present application has a variable flow splitting state and a fixed flow splitting state through a variable flow splitting device. In the variable flow splitting state, the refrigerant in the heat exchanger of the air conditioner adjusts the flow splitting state; in the fixed flow splitting state, the refrigerant in the heat exchanger of the air conditioner is fixed.

The diversion state is divided into single-way diversion and multi-way diversion. In the multi-way diversion mode, the refrigerant in the outdoor heat exchanger of the air conditioner works in multi-way diversion. In the single-way diversion mode, the refrigerant in the outdoor heat exchanger of the air conditioner works in a single way. That is to say, in the variable diversion state, the air conditioner switches between the single-way diversion mode and the multi-way diversion mode, and in the fixed diversion state, the air conditioner is fixed to the single-way diversion mode or the multi-way diversion mode.

In the multi-way flow diversion mode, the reversing valve 1 is in the first position, the first connecting port 101 is connected to the second connecting port 102, and the third connecting port 103 is connected to the fourth connecting port 104. At this time, the second connecting port 102 is connected to the first diversion pipeline 2, and the fourth connecting port 104 is connected to the second diversion pipeline 3. The refrigerant at the refrigerant inlet enters from the first diversion pipeline 2, is diverted in the branch pipeline of the first diversion pipeline 2, enters each heat exchange pipeline 4 to exchange heat with the air, and then enters the main pipeline of the second diversion pipeline 3 through the branch pipeline, and finally passes through the fourth connecting port 104 and the third connecting port 103, and is discharged from the refrigerant outlet, realizing heat exchange through multiple pipelines.

In the single-channel shunt mode, the reversing valve 1 is in the second position, the first communication port 101 is connected to the fourth communication port 104, and the third communication port 103 is connected to the second communication port 102. At this time, the second communication port 102 is connected to the second shunt pipeline 3, and the fourth communication port 104 is connected to the first shunt pipeline 2. The refrigerant at the refrigerant inlet enters from the second shunt pipeline 3. Since a one-way valve 5 is provided in part of the pipeline in the first shunt pipeline 2, the refrigerant flow in the pipeline is blocked by the one-way valve 5, and the refrigerant can only be discharged by heat exchange in part of the heat exchange pipeline 4, and the heat exchange pipeline can be reduced at this time.

In a specific example, two heat exchange pipelines 4 are taken as examples, namely the first heat exchange pipeline and the second heat exchange pipeline. The first branch pipeline 2 and the second branch pipeline 3 are each provided with a main pipeline and two branch pipelines, and a check valve 5 is provided in one branch pipeline of the first branch pipeline 2.

In the multi-way flow diversion mode, the reversing valve 1 is in the first position, the first communication port 101 is connected to the second communication port 102, and the third communication port 103 is connected to the fourth communication port 104. The second connecting port 102 is connected to the first branch pipeline 2, and the fourth connecting port 104 is connected to the second branch pipeline 3. The refrigerant at the refrigerant inlet enters from the first branch pipeline 2, is branched in the branch pipeline of the first branch pipeline 2, enters the first heat exchange pipeline and the second heat exchange pipeline respectively to exchange heat with the air, and then enters the main pipeline through the branch pipeline of the second branch pipeline 3, and finally passes through the fourth connecting port 104 and the third connecting port 103, and is discharged from the refrigerant outlet, realizing simultaneous heat exchange of the two pipelines.

In the single-way flow splitting mode, the reversing valve 1 is in the second position, the first communication port 101 is connected to the fourth communication port 104, and the third communication port 103 is connected to the second communication port 102. At this time, the second communication port 102 is connected to the second flow splitting pipeline 3, and the fourth communication port 104 is connected to the first flow splitting pipeline 2. The refrigerant at the refrigerant inlet enters from the second flow splitting pipeline 3. Since the one-way valve 5 is provided in the branch pipeline in the first flow splitting pipeline 2, under its blocking effect, the refrigerant can only be discharged by heat exchange in the first heat exchange pipeline, and heat exchange is only performed through one heat exchange pipeline at this time.

The variable shunt noise reduction control method, system and air conditioner of the present application are described below in conjunction with Figures 3 to 6.

According to an embodiment of the present application, as shown in FIG. 3 , the variable split noise reduction control method for an air conditioner provided by the present application mainly includes the following steps.

S100: Acquire the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor.

When the air conditioner is running at a low frequency, when the computer board carrier frequency is close to the compressor motor modal frequency, it is easy to cause the compressor motor to resonate and generate electromagnetic noise. Therefore, it is necessary to monitor the computer board carrier frequency and the compressor motor modal frequency in real time.

S200. When the frequency difference between the compressor motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, adjust the motor modal frequency so that the frequency difference is different from the resonance preset value, and control the shunt mode of the air conditioner in response to adjusting the motor modal frequency.

When the compressor motor modal frequency is close to the carrier frequency of the computer board, the compressor motor resonates and generates electromagnetic noise. At this time, the electromagnetic noise can be reduced by changing the compressor motor modal frequency to avoid the resonance phenomenon. And after adjusting the compressor motor modal frequency, the compressor load will change, and the heat exchange effect will change accordingly. At this time, by adjusting the air conditioner's diversion mode, the air conditioner can be operated in a stable state to ensure the air conditioner's heat exchange effect.

Therefore, the variable shunt noise reduction control method for the air conditioner provided in the present application obtains the air conditioner The carrier frequency of the computer board of the air conditioner and the motor modal frequency of the air conditioner compressor are adjusted, and when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, the motor modal frequency is adjusted to make the frequency difference different from the resonance preset value, thereby avoiding the resonance of the compressor motor and reducing electromagnetic noise; and in response to adjusting the motor modal frequency, the air conditioner's shunt mode is controlled, so that the air conditioner can operate in a stable state and ensure the heat exchange effect of the air conditioner. Therefore, the present application can reduce or even eliminate electromagnetic noise, and can ensure the stable operation of the air conditioner, effectively improving the user experience.

According to one embodiment of the present application, the step of adjusting the motor modal frequency so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the motor modal frequency so that the frequency difference is different from the resonance preset value. The resonance preset value can be understood as the set frequency difference when the motor modal frequency and the carrier frequency of the computer board are close to each other and resonance is generated, and can be specifically designed according to the actual working conditions of the air conditioner.

According to one embodiment of the present application, in response to adjusting the motor modal frequency, the step of controlling the split mode of the air conditioner specifically includes:

In cooling mode, the motor modal frequency is increased to control the air conditioner to operate in single-way shunt mode; in heating mode, the motor modal frequency is reduced to control the air conditioner to operate in multi-way shunt mode.

It should be noted that the pipes and pipe lengths through which the heat exchanger currently flows are the same when cooling or heating. However, in reality, the refrigerant state on the inside of the pipe, the heat exchange temperature difference between the inside of the pipe and the environment, the refrigerant flow rate, the pressure drop, the heat transfer coefficient, etc. are all different for heat exchangers, especially heat pump heat exchangers, when cooling and heating.

When the heat exchanger is used as a condenser, the gaseous refrigerant is continuously liquefied along the flow direction of the refrigerant, and the liquid refrigerant increases and increases until it is completely converted into liquid refrigerant at the outlet. According to the principle of continuity of flow, the mass flow rate of the refrigerant is constant along the flow direction of the refrigerant, while the specific volume of the gaseous refrigerant is more than ten times that of its liquid state. Taking R410A refrigerant as an example, the specific volume of saturated vapor at 40°C is 0.01003m ³ /kg, and the specific volume of saturated liquid is 0.00106m ³ /kg. The specific volume of the gaseous state is 9.5 times that of the liquid state, which means that the density of the liquid state is 9.5 times that of the gaseous state. Since the volume of the refrigerant is greatly reduced after liquefaction, the refrigerant flow rate will be greatly reduced. The refrigerant flow rate at the outlet section is low, and the heat transfer coefficient is also low. Therefore, the optimal heat exchange effect cannot be achieved. Therefore, when the heat exchanger is used as a condenser, in order to improve the heat exchange effect, the subcooling degree can be increased, because the subcooling section of the condenser After the increase, the space occupied by the liquid refrigerant increases, the number of flow paths occupied by the saturated section and the superheated section decreases, the total pressure drop of the condenser decreases, the flow rate decreases, the heat transfer coefficient increases, and the heat exchange capacity increases. Therefore, the fewer the refrigeration flow paths, the better the refrigeration effect. In the refrigeration mode, when the motor modal frequency of the compressor is increased, the load increases. At this time, by controlling the air conditioner to run in the single-channel shunt mode, the heat exchange operation effect of the air conditioner can be effectively improved, and matching can be achieved, thereby ensuring the current operation stability of the air conditioner and improving the user experience.

Moreover, when the heat exchanger is used as an evaporator, the refrigerant flows in the opposite direction. As the heat exchange proceeds, the refrigerant changes from liquid to gas and its volume continues to increase. In a constant cross-sectional area, the flow rate will become larger and larger. At the same time, too high a flow rate will cause the refrigerant flow pressure loss to increase, offsetting part of the heat exchange performance.

When heating at low temperature, the heat exchanger acts as an evaporator, and the inside of the tube is low-temperature and low-pressure refrigerant. Due to structural limitations, the air volume is unevenly distributed. The position with small air volume absorbs the external heat slowly, and frost will form first. After frosting, the heat transfer with the outdoor unit will become slower, and the vicious cycle will make the frost thicker and thicker, and the heating capacity will be seriously attenuated. Therefore, when the outdoor unit heat exchanger is used as an evaporator, the flow path cannot be too long. If it is too long, the pressure drop will be greater. The lower the temperature, the more serious the frost. The number of flow paths should be increased as much as possible to reduce the pressure drop and make the temperature of each flow path uniform. Therefore, the more heating flow paths, the better the heating effect. In the heating mode, when the motor modal frequency of the compressor is reduced, the heat exchange effect will be poor. At this time, by controlling the air conditioner to run in the multi-way shunt mode, the heating capacity of the air conditioner can be effectively increased, and the stability of the heating effect of the air conditioner can be ensured, thereby ensuring the user experience.

According to one embodiment of the present application, in response to adjusting the motor modal frequency, the step of controlling the diversion mode of the air conditioner also includes: obtaining the current operating ambient temperature of the air conditioner, and determining whether the air conditioner operates in cooling mode or heating mode according to the ambient temperature.

For example, when the outdoor environment is in winter with a relatively low temperature, the air conditioner is controlled to operate in a heating mode, and when the outdoor environment is in summer with a relatively high temperature, the air conditioner is controlled to operate in a cooling mode.

According to one embodiment of the present application, after the step of controlling the diversion mode of the air conditioner, it also includes: obtaining the exhaust temperature of the air conditioner compressor; adjusting the opening of the air conditioner throttle valve according to the exhaust temperature of the air conditioner compressor to ensure the stability of the current operation of the air conditioner.

Among them, the opening of the air conditioner throttle valve is adjusted according to the exhaust temperature of the air conditioner compressor. The steps specifically include: comparing the exhaust temperature of the compressor with the target temperature, and adjusting the opening of the throttle valve and the refrigeration capacity according to the comparison result so that the exhaust temperature of the compressor is maintained at the target temperature. The target temperature can be designed according to different needs of users without special restrictions.

The present application can further ensure the operating stability of the air conditioner by adjusting the throttle valve after controlling the diversion mode of the air conditioner, thereby effectively improving the user experience.

According to one embodiment of the present application, when the frequency difference between the motor modal frequency and the carrier frequency of the computer board does not reach the resonance preset value, the air conditioner is controlled to maintain the current state without any processing.

The variable split noise reduction control method for the air conditioner of the present application is further described below with reference to a specific example, as shown in FIG4 , and generally includes:

(1) The air conditioner starts running;

(2) Detect the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

(3) Determine whether the frequency difference between the compressor motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value. If not, no processing is performed; if yes, proceed to the next step;

(4) Increase or decrease the motor modal frequency so that the frequency difference is different from the resonance preset value to avoid resonance;

(5) Control diversion mode;

(6) Adjust the throttle valve opening to ensure stable operation of the air conditioner.

The variable shunt noise reduction control system for an air conditioner provided in the present application is described below. The variable shunt noise reduction control system for an air conditioner described below and the control method described above can be referenced to each other.

According to an embodiment of the present application, as shown in FIG. 5 , the present application also provides a variable shunt noise reduction control system for an air conditioner, which mainly includes: an acquisition module 6 and a control module 7. The acquisition module 6 is used to acquire the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor; the control module 7 is used to adjust the motor modal frequency when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, so that the frequency difference is different from the resonance preset value, and in response to adjusting the motor modal frequency, control the shunt mode of the air conditioner.

The variable shunt noise reduction control system for air conditioners provided in the present application monitors the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor in real time through the acquisition module 6, and controls The control module 7 adjusts the motor modal frequency to avoid the compressor motor resonance and reduce electromagnetic noise; and the air conditioner's shunt mode is controlled by the control module 7, so that the air conditioner can operate in a stable state and ensure the heat exchange effect of the air conditioner. Therefore, the control system of the present application can reduce or even eliminate the electromagnetic noise of the air conditioner, ensure the stable operation of the air conditioner, and improve the user experience.

According to one embodiment of the present application, the present application also provides an air conditioner, including the variable split noise reduction control system of the air conditioner of the above embodiment.

According to an embodiment of the present application, as shown in FIG. 6 , the present application further provides an electronic device, which may include: a processor 801, a communication interface 802, a memory 803 and a communication bus 804, wherein the processor 801, the communication interface 802 and the memory 803 communicate with each other through the communication bus 804. The processor 801 may call the logic instructions in the memory 803 to execute the variable shunt noise reduction control method of the air conditioner, which method includes: obtaining the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor; when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, adjusting the motor modal frequency so that the frequency difference is different from the resonance preset value, and in response to adjusting the motor modal frequency, controlling the shunt mode of the air conditioner.

In addition, the logic instructions in the above-mentioned memory 803 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that 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, the computer program can be stored in a non-transitory computer readable storage medium, when the computer program is executed by a processor, the computer can execute the variable split noise reduction control method of the air conditioner provided by the above methods, the method includes: obtaining the air conditioner computer board The carrier frequency and the motor modal frequency of the air conditioner compressor; when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, the motor modal frequency is adjusted so that the frequency difference is different from the resonance preset value, and the shunt mode of the air conditioner is controlled in response to the adjustment of the motor modal frequency.

On the other hand, the present application also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the variable shunt noise reduction control method for an air conditioner provided by the above-mentioned methods, the method comprising: obtaining the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor; when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, adjusting the motor modal frequency so that the frequency difference is different from the resonance preset value, and controlling the shunt mode of the air conditioner in response to adjusting the motor modal frequency.

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

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

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

Claims

A variable shunt noise reduction control method for an air conditioner, comprising:

Obtain the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

When the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, the motor modal frequency is adjusted so that the frequency difference is different from the resonance preset value, and in response to adjusting the motor modal frequency, the diversion mode of the air conditioner is controlled.
According to the variable shunt noise reduction control method for an air conditioner according to claim 1, the step of adjusting the motor modal frequency so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the motor modal frequency so that the frequency difference is different from the resonance preset value.
According to the variable shunt noise reduction control method for an air conditioner according to claim 2, wherein, in response to adjusting the motor modal frequency, the step of controlling the shunt mode of the air conditioner specifically comprises:

In cooling mode, the motor modal frequency is increased to control the air conditioner to operate in a single-channel split mode;

In the heating mode, the motor modal frequency is reduced and the air conditioner is controlled to operate in the multi-way split mode.
According to the variable shunt noise reduction control method for an air conditioner according to claim 3, wherein, in response to adjusting the motor modal frequency, the step of controlling the shunt mode of the air conditioner further comprises: obtaining the current operating ambient temperature of the air conditioner, and determining whether the air conditioner operates in cooling mode or heating mode according to the ambient temperature.
The variable shunt noise reduction control method for an air conditioner according to any one of claims 1 to 4, wherein after the step of controlling the shunt mode of the air conditioner, the method further comprises:

Obtaining the exhaust temperature of the air conditioner compressor;

The opening of the air conditioner throttle valve is adjusted according to the exhaust temperature of the air conditioner compressor.
According to the variable split noise reduction control method of the air conditioner according to claim 5, the step of adjusting the opening of the air conditioner throttle valve according to the exhaust temperature of the air conditioner compressor specifically comprises: comparing the exhaust temperature of the compressor with the target temperature, and adjusting the opening of the throttle valve according to the comparison result so that the exhaust temperature of the compressor is maintained at the target temperature. temperature.
According to the variable shunt noise reduction control method for an air conditioner according to any one of claims 1-4, when the frequency difference between the motor modal frequency and the carrier frequency of the computer board does not reach a preset resonance value, the air conditioner is controlled to maintain operation in the current state.
An air conditioner variable split noise reduction control system, comprising:

An acquisition module, used to acquire the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

The control module is used to adjust the motor modal frequency when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, so that the frequency difference is different from the resonance preset value, and control the diversion mode of the air conditioner in response to adjusting the motor modal frequency.
An air conditioner comprises the variable split noise reduction control system for the air conditioner as claimed in claim 8.
An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the variable split noise reduction control method for an air conditioner as described in any one of claims 1 to 7 is implemented.