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

Abstract

The present invention relates to the technical field of air conditioners, and provides a variable shunt noise reduction control method, system and air conditioner for an air conditioner. The variable shunt noise reduction control method for an air conditioner comprises: 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 present invention can reduce or even eliminate electromagnetic noise, and can ensure the stable operation of the air conditioner, effectively improving the user experience.

Description

Technical Field

[0001] The present invention 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 Art

[0002] 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.

[0003] 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

[0004] The present invention provides a variable shunt noise reduction control method and system for an air conditioner, and an air conditioner, which can reduce or even eliminate electromagnetic noise, ensure stable operation of the air conditioner, and effectively improve the user experience.

[0005] The present invention provides a variable shunt noise reduction control method for an air conditioner, comprising:

[0006] Obtain the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

[0007] When the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, the carrier frequency of the computer board is adjusted so that the frequency difference is different from the resonance preset value, and in response to adjusting the carrier frequency of the computer board, the diversion mode of the air conditioner is controlled.

[0008] According to a variable shunt noise reduction control method for an air conditioner provided by the present invention, the step of adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value.

[0009] According to a variable shunt noise reduction control method for an air conditioner provided by the present invention, in response to adjusting the carrier frequency of the computer board, the step of controlling the shunt mode of the air conditioner specifically includes:

[0010] In cooling mode, the carrier frequency of the computer board is increased to control the air conditioner to operate in single-channel split mode;

[0011] In the heating mode, the carrier frequency of the computer board is reduced to control the air conditioner to operate in the multi-way split mode.

[0012] According to a variable shunt noise reduction control method for an air conditioner provided by the present invention, in response to adjusting the carrier frequency of the computer board, 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 according to the ambient temperature.

[0013] According to the present invention, a variable shunt noise reduction control method for an air conditioner further comprises, after the step of controlling the shunt mode of the air conditioner:

[0014] Obtaining the exhaust temperature of the air conditioner compressor;

[0015] The opening of the air conditioner throttle valve is adjusted according to the exhaust temperature of the air conditioner compressor.

[0016] According to a variable split noise reduction control method for an air conditioner provided by the present invention, 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.

[0017] According to a variable shunt noise reduction control method for an air conditioner provided by the present invention, 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.

[0018] The present invention also provides an air conditioner variable shunt noise reduction control system, comprising:

[0019] 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;

[0020] The control module is used to adjust the carrier frequency of the computer board 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 carrier frequency of the computer board.

[0021] The present invention also provides an air conditioner, comprising: the above-mentioned variable shunt noise reduction control system for the air conditioner.

[0022] The present invention also provides an electronic device, comprising 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.

[0023] The variable shunt noise reduction control method, system and air conditioner provided by the present invention 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 carrier frequency of the computer board 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 carrier frequency of the computer board, control the shunt mode of the air conditioner, so that the air conditioner can operate in a stable state and ensure the heat exchange effect of the air conditioner. Therefore, the present invention 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

[0024] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 is a schematic structural diagram of a variable flow splitter provided by the present invention;

[0026] Figure 2 It is a structural schematic diagram of the heat exchanger provided by the present invention;

[0027] Figure 3 This is one of the flow charts of the variable shunt noise reduction control method for an air conditioner provided by the present invention;

[0028] Figure 4 This is the second flow chart of the variable shunt noise reduction control method for the air conditioner provided by the present invention;

[0029] Figure 5 It is a structural schematic diagram of a variable shunt noise reduction control system for an air conditioner provided by the present invention;

[0030] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention.

[0031] Reference numerals:

[0032] 1: reversing valve; 101: first communication port; 102: second communication port;

[0033] 103: third communication port; 104: fourth communication port; 2: first flow diversion pipeline;

[0034] 3: second diversion pipeline; 4: heat exchange pipeline; 5: one-way valve; 6: acquisition module;

[0035] 7: control module; 801: processor; 802: communication interface; 803: memory;

[0036] 804: Communication bus. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the embodiments of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] To better understand the split mode of the air conditioner, first combine Figure 1 and Figure 2 Describe the split mode of the air conditioner.

[0042] According to one embodiment of the present invention, referring to Figure 1 and Figure 2As shown, 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. 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 check valve 5 can be provided in some of the branch pipelines as needed.

[0043] 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.

[0044] The air conditioner of the present invention 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.

[0045] 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.

[0046] 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 by multiple pipelines.

[0047] 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, so the heat exchange pipeline can be reduced.

[0048] 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.

[0049] 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 the first heat exchange pipeline and the second heat exchange pipeline respectively to exchange heat with the air, and then enters the main pipeline from the branch pipeline of the second diversion 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.

[0050] 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.

[0051] Combine the following Figure 3-Figure 6 The invention describes a variable split noise reduction control method and system for an air conditioner and an air conditioner.

[0052] According to one embodiment of the present invention, referring to Figure 3 As shown, the variable shunt noise reduction control method for an air conditioner provided by the present invention mainly includes:

[0053] S100: Acquire the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor.

[0054] 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.

[0055] S200. When the frequency difference between the compressor motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, adjust the carrier frequency of the computer board 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 carrier frequency of the computer board.

[0056] 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.

[0057] Therefore, the variable shunt noise reduction control method for air conditioners provided by the present invention obtains 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, the carrier frequency of the computer board 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 carrier frequency of the computer board, the shunt mode of the air conditioner 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 invention can reduce or even eliminate electromagnetic noise, and can ensure the stable operation of the air conditioner, effectively improving the user experience.

[0058] According to one embodiment of the present invention, the step of adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the carrier frequency of the computer board 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.

[0059] According to one embodiment of the present invention, in response to adjusting the carrier frequency of the computer board, the step of controlling the split mode of the air conditioner specifically includes:

[0060] In cooling mode, the carrier frequency of the computer board is increased to control the air conditioner to operate in single-way shunt mode; in heating mode, the carrier frequency of the computer board is reduced to control the air conditioner to operate in multi-way shunt mode.

[0061] It should be noted that the pipes and pipe lengths through which the current heat exchangers flow 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.

[0062] When the heat exchanger is used as a condenser, the gaseous refrigerant is continuously liquefied along the refrigerant flow direction, and the liquid refrigerant increases and becomes completely converted into liquid refrigerant at the outlet. According to the principle of flow continuity, the mass flow rate of the refrigerant is constant along the refrigerant flow direction, 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 0.01003m³ / kg, and the specific volume of saturated liquid is 0.00106 m³ / 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 degree of subcooling can be increased, because after the subcooling section of the condenser is enlarged, 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 is large, and the heat exchange capacity is large. 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 becomes larger. 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.

[0063] 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.

[0064] 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 diversion 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.

[0065] According to one embodiment of the present invention, in response to adjusting the carrier frequency of the computer board, 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.

[0066] 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.

[0067] According to one embodiment of the present invention, 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.

[0068] 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, adjusting the cooling capacity, and keeping the exhaust temperature of the compressor at the target temperature. The target temperature can be designed according to different needs of users without special restrictions.

[0069] The present invention 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.

[0070] According to one embodiment of the present invention, when the frequency difference between the motor modal frequency and the carrier frequency of the computer board does not reach the preset resonance value, the air conditioner is controlled to maintain the current state without any processing.

[0071] The variable split noise reduction control method for an air conditioner of the present invention is further described below with reference to a specific example. Figure 4 As shown, it generally includes:

[0072] (1) The air conditioner starts running;

[0073] (2) Detect the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor;

[0074] (3) Determine whether the frequency difference between the compressor motor modal frequency and the carrier frequency of the computer board reaches the preset resonance value. If not, no processing is performed; if yes, proceed to the next step;

[0075] (4) Increase or decrease the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value to avoid resonance;

[0076] (5) Control diversion mode;

[0077] (6) Adjust the throttle valve opening to ensure stable operation of the air conditioner.

[0078] The variable shunt noise reduction control system for an air conditioner provided by the present invention is described below. The variable shunt noise reduction control system for an air conditioner described below and the control method described above can be referred to each other.

[0079] According to one embodiment of the present invention, referring to Figure 5 As shown, the present invention 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 carrier frequency of the computer board 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 carrier frequency of the computer board, control the shunt mode of the air conditioner.

[0080] The variable shunt noise reduction control system for air conditioners provided by the present invention 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 adjusts the carrier frequency of the computer board through the control module 7 to avoid the resonance of the compressor motor and reduce electromagnetic noise; and controls the shunt mode of the air conditioner through 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 invention 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.

[0081] According to one embodiment of the present invention, the present invention further provides an air conditioner, comprising: the variable split noise reduction control system of the air conditioner of the above embodiment.

[0082] According to one embodiment of the present invention, referring to Figure 6As shown, the present invention also 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, 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 the resonance preset value, adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value, and in response to adjusting the carrier frequency of the computer board, controlling the shunt mode of the air conditioner.

[0083] In addition, the logic instructions in the above-mentioned memory 803 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk.

[0084] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the variable shunt noise reduction control method of the air conditioner provided by the above-mentioned methods, and the 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 a resonance preset value, adjusting the carrier frequency of the computer board 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 carrier frequency of the computer board.

[0085] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the 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 carrier frequency of the computer board 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 carrier frequency of the computer board.

[0086] 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. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0087] 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, 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.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A variable split noise reduction control method for an air conditioner, It is characterized in that include: Obtain the carrier frequency of the air conditioner computer board and the motor modal frequency of the air conditioner compressor; In the case where the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches a resonance preset value, adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value, and in response to adjusting the carrier frequency of the computer board, controlling the split mode of the air conditioner; The step of adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value; In response to adjusting the carrier frequency of the computer board, the step of controlling the split mode of the air conditioner specifically includes: In cooling mode, the carrier frequency of the computer board is increased to control the air conditioner to operate in single-channel split mode; In the heating mode, the carrier frequency of the computer board is reduced to control the air conditioner to operate in the multi-way split mode.

2. The variable split noise reduction control method for air conditioner according to claim 1, It is characterized in that In response to adjusting the carrier frequency of the computer board, 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 a cooling mode or a heating mode according to the ambient temperature.

3. The variable split noise reduction control method for air conditioner according to claim 1 or 2, It is characterized in that After the step of controlling the air conditioner in the split mode, 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.

4. The variable split noise reduction control method for air conditioner according to claim 3, It is characterized in that 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.

5. The variable split noise reduction control method for air conditioner according to claim 1 or 2, It is characterized in that 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 of operation.

6. A variable shunt noise reduction control system for an air conditioner, It is characterized in that include: 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; a control module, for adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value when the frequency difference between the motor modal frequency and the carrier frequency of the computer board reaches the resonance preset value, and controlling the shunt mode of the air conditioner in response to adjusting the carrier frequency of the computer board; The step of adjusting the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value specifically includes: increasing or decreasing the carrier frequency of the computer board so that the frequency difference is different from the resonance preset value; In response to adjusting the carrier frequency of the computer board, the step of controlling the split mode of the air conditioner specifically includes: In cooling mode, the carrier frequency of the computer board is increased to control the air conditioner to operate in single-channel split mode; In the heating mode, the carrier frequency of the computer board is reduced to control the air conditioner to operate in the multi-way split mode.

7. An air conditioner, It is characterized in that include: The variable split noise reduction control system for an air conditioner as described in claim 6.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, It is characterized in that When the processor executes the program, the variable split noise reduction control method for the air conditioner as described in any one of claims 1 to 5 is implemented.

Images