CN114322192B - Control method and device for noise reduction of air conditioner, air conditioner and storage medium - Google Patents

Abstract

This application relates to the technical field of smart home appliances, and discloses a control method for noise reduction of an air conditioner, including: when the air conditioner is turned on, controlling the start of the vacuum pump; obtaining the exhaust temperature or pressure of the compressor; Air temperature or exhaust pressure, control the running speed of the motor of the vacuum pump. When the air-conditioning system is just running and the compressor is running unstable and the noise is loud, the exhaust temperature or pressure of the compressor gradually increases, and the power of the vacuum pump can be increased to quickly evacuate, thereby achieving a good noise reduction effect; when the exhaust temperature or pressure of the compressor is gradually stable and the noise is low, the power of the vacuum pump is gradually reduced at this time, so that the noise reduction effect can be satisfied and the energy consumption of the vacuum pump can also be reduced. The application also discloses an air conditioner noise reduction device, an air conditioner and a storage medium.

Description

Control method, device, air conditioner and storage medium for noise reduction of air conditioner

technical field

The present application relates to the technical field of smart home appliances, for example, to a control method and device for noise reduction of an air conditioner, an air conditioner and a storage medium.

Background technique

The compressor is the core component of the air-conditioning system, the power component of the air-conditioning system, and plays an important role in the cold coal cycle process. Compressors are divided into fixed-frequency compressors and variable-frequency compressors. The frequency of variable-frequency compressors can be adjusted according to needs during the working process. Whether it is a fixed-frequency compressor or an inverter compressor, when the air conditioner is started and running, the compressor is in an unsteady state, and vibration will occur during its working process, and the vibration will produce a lot of noise , especially the inverter air conditioner, the torque of the compressor is relatively large, and the vibration is even greater during operation. Thereby causing great trouble to the user.

In order to solve the problem that the noise reduction effect of the existing compressor noise reduction device is poor, the prior art discloses a noise reduction device for an air conditioner compressor. There is a gap formed between the periphery of the machine and the outer surface of the compressor, and the top of the casing is formed with a first through hole for the pipeline connected to the compressor to pass through; the vacuum pump communicates with the gap and is used to pump the gap vacuum. Therefore, a vacuum zone is constructed around the compressor, and noise cannot be transmitted outward through the vacuum zone.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in related technologies:

After the air conditioner is turned on, the vacuum pump keeps vacuuming at the set power to reduce noise. When the compressor runs at a stable frequency or in energy-saving mode, there is no loud noise. At this time, the vacuum pump is still working continuously and consumes less energy. high.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a control method, device, air conditioner and storage medium for noise reduction of an air conditioner, which can control the power of the vacuum pump according to the actual operation of the compressor, and effectively reduce the noise of the vacuum pump while satisfying the noise reduction effect. energy consumption.

In some embodiments, a control method for noise reduction of an air conditioner, the air conditioner includes: a compressor; a casing, which is arranged on the periphery of the compressor and forms a gap with the outer surface of the compressor; a vacuum pump, communicated with the gap for vacuuming the gap;

The control method includes: controlling the start of the vacuum pump when the air conditioner is turned on; obtaining the discharge temperature or pressure of the compressor; and controlling the operating speed of the motor of the vacuum pump according to the discharge temperature or pressure of the compressor.

In some embodiments, a device for noise reduction of an air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the method described in any of the above-mentioned embodiments when running the program instructions. A control method for noise reduction of an air conditioner.

In some embodiments, an air conditioner includes a device for reducing noise of the air conditioner.

In some embodiments, a storage medium stores program instructions, and when the program instructions are run, execute the control method for noise reduction of an air conditioner described in any of the above embodiments.

The control method, device, air conditioner and storage medium for air conditioner noise reduction provided by the embodiments of the present disclosure can achieve the following technical effects:

In order to reduce the energy consumption of the vacuum pump, the rotational speed of the motor in the vacuum pump is controlled according to the discharge temperature of the compressor or the discharge pressure of the compressor. When the air-conditioning system is just running and the compressor is running unstable and the noise is loud, the exhaust temperature or pressure of the compressor gradually increases, and the power of the vacuum pump can be increased to quickly evacuate, thereby achieving a good noise reduction effect; when the exhaust temperature or pressure of the compressor is gradually stable and the noise is low, the power of the vacuum pump is gradually reduced at this time, so that the noise reduction effect can be satisfied and the energy consumption of the vacuum pump can also be reduced.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

FIG. 1 is a schematic structural diagram of a noise reduction device provided by an embodiment of the present disclosure;

Fig. 2 is a schematic diagram of a control method for noise reduction of an air conditioner provided by an embodiment of the present disclosure;

3 is a schematic diagram of a method for controlling the operating speed of a vacuum pump motor according to the exhaust temperature or exhaust pressure of a compressor provided by an embodiment of the present disclosure;

Fig. 4 is a schematic diagram of another control method for noise reduction of an air conditioner provided by an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of a method for controlling the operation setting duration of the vacuum pump according to the operating frequency of the compressor provided by an embodiment of the present disclosure;

Fig. 6 is a schematic diagram of a device for controlling an air conditioner provided by an embodiment of the present disclosure;

Reference signs:

10. Shell; 11. The first protective pipe section; 12. The second through hole; 13. Screw seat;

100: processor; 101: memory; 102: communication interface; 103: bus.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

The term "correspondence" may refer to an association relationship or a binding relationship, and the correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

In the embodiments of the present disclosure, smart home appliances refer to home appliances formed by introducing microprocessors, sensor technologies, and network communication technologies into home appliances. They have the characteristics of intelligent control, intelligent perception, and intelligent applications. Relying on the application and processing of modern technologies such as the Internet of Things, the Internet, and electronic chips, for example, smart home appliances can realize remote control and management of smart home appliances by users by connecting electronic devices.

An air conditioning system generally consists of two parts: an indoor unit and an outdoor unit, wherein the outdoor unit is provided with a compressor, an outdoor heat exchanger and a throttling device, and the indoor unit is provided with an indoor heat exchanger. When the air conditioner is running in cooling mode, the refrigerant discharged from the compressor passes through the outdoor heat exchanger, throttling device and indoor heat exchanger in turn, and finally returns to the compressor for recompression. When the air conditioner is running in heating mode, the refrigerant discharged from the compressor passes through the indoor heat exchanger, throttling device and outdoor heat exchanger in turn, and finally returns to the compressor for recompression.

In the above process, the compressor is the main power source of the refrigerant circulation system. Therefore, whether it is cooling or heating, the compressor will vibrate during its working process, and the vibration will produce a lot of noise, especially when it is just started. Compressors or compressors that operate at high frequencies produce more noise, causing great distress to users.

As shown in Figure 1, the present embodiment provides a noise reduction device, including a casing 10, the casing 10 is set on the periphery of the compressor and forms a gap with the outer surface of the compressor; the vacuum pump communicates with the gap, and uses To vacuum the gap. By setting a vacuum pump communicating with the gap to evacuate the gap before the compressor works, a vacuum zone can be constructed around the compressor, so that even if the compressor vibrates and generates noise, the noise cannot pass through the vacuum zone. pass, so as to achieve a good noise reduction effect.

In this embodiment, a first through hole is formed on the top of the casing 10 for the pipelines and wires connected to the compressor to pass through, and the first through hole is used for the exhaust pipe, suction pipe and The wiring of the compressor passes through; the edge of the first through hole protrudes outward to form a first protective pipe section 11, the first protective pipe section 11 is higher than the top surface of the casing 10, and its inner diameter is the same as the exhaust pipe of the compressor, The suction pipe and so on are suitable.

In this embodiment, the vacuum pump is connected to the inner side wall of the casing 10, or, connected to the outside of the casing 10. A second through hole 12 is formed on the side wall of the casing 10, the edge of the second through hole 12 can protrude inward to form a second protective pipe section, and the exhaust port of the vacuum pump is connected to the second through hole 12 by means of a hose Furthermore, the air inlet of the vacuum pump communicates with the gap to discharge the air in the gap, so that a vacuum environment can be constructed around the compressor. Wherein, in order to facilitate the installation of the casing 10 , a screw seat 12 is provided at the bottom of the casing 10 .

In some embodiments, when the air conditioning system receives the start signal, the controller controls the compressor to be in a standby state first, and the compressor will not make noise at this time; the controller controls the vacuum pump to start working, and the compressor and the casing The gap is vacuumed to create a vacuum environment around the compressor, and then the controller controls the compressor to start, and the air conditioning system starts to work. In this way, the noise generated by the operation of the compressor cannot be transmitted through the air, thereby achieving the purpose of noise reduction of the compressor.

In some embodiments, as shown in FIG. 2 , an embodiment of the present disclosure provides a control method for noise reduction of an air conditioner, including:

S10: when the air conditioner is turned on, the processor 100 controls the vacuum pump to start;

S20: Obtain the discharge temperature or discharge pressure of the compressor;

S30: The processor 100 controls the operating speed of the motor of the vacuum pump according to the exhaust temperature or the exhaust pressure of the compressor.

When the air conditioner is turned on, since the compressor is running at a low load, the compressor runs at a low frequency. At this time, the compressor is in an unsteady state, and the torque of the compressor is relatively large, which causes the compressor to vibrate and generate noise. Therefore, when the air conditioning system is just running, the compressor runs unstable and makes a lot of noise, and the vacuum pump is controlled to start to reduce noise. With the gradual increase of the exhaust temperature or exhaust pressure of the compressor, the motor speed of the vacuum pump will increase, thereby increasing the power of the vacuum pump, and the vacuum can be pumped quickly, thereby achieving a good noise reduction effect; when the compressor The exhaust gas temperature is gradually stable and the noise is small, at this time, the operating speed of the motor is gradually reduced. In this way, the noise reduction effect can be satisfied and the energy consumption of the vacuum pump can also be reduced.

Optionally, the processor 100 controls the operating speed of the motor of the vacuum pump according to the discharge temperature or pressure of the compressor. Among them, the operating mode of the air conditioner is different, and the exhaust temperature or exhaust pressure requirements are also different; for this reason, the accurate acquisition of the exhaust temperature or exhaust pressure of the compressor affects the operating speed of the motor of the vacuum pump. In this embodiment, the air conditioner is provided with a temperature sensor or a pressure sensor for monitoring the discharge of the compressor. The temperature sensor or the pressure sensor is electrically connected to the processor 100 and sends the compressor's discharge temperature signal or discharge temperature signal to the processor 100 in real time. air pressure signal.

In some embodiments, the higher the discharge temperature of the compressor or the higher the discharge pressure, the faster the rotation speed of the motor of the vacuum pump.

In this embodiment, the air conditioning system has multiple noise reduction levels L, and each noise reduction level corresponds to the rotational speed n of the motor in the vacuum pump. For example, the air conditioning system has 10 noise reduction levels L, and L can be level 1, level 2, level 3, level 4, level 5, level 6, level 7, level 8, level 9 and level 10. Optionally, as the noise reduction level increases, the rotational speed of the motor gradually increases.

In this embodiment, when the demand for cooling or heating is large, here, the operating speed of the motor of the vacuum pump is controlled by the exhaust temperature of the compressor, and the compressor needs to increase the exhaust temperature of the refrigerant. At this time, the compressor is always It is a high-load operation, the torque of the compressor is relatively large, the air-conditioning system turns on the 7-level noise reduction, and the motor runs at the seventh speed. When the demand for cooling or heating decreases, the air-conditioning system will turn on the second level of noise reduction, and the motor will run at the second speed, which can not only meet the noise reduction effect but also reduce the energy consumption of the vacuum pump.

Optionally, as shown in FIG. 3, the processor 100 controls the operating speed of the motor of the vacuum pump according to the exhaust temperature or exhaust pressure of the compressor, including:

S21: When the exhaust temperature of the compressor is greater than or equal to the first preset temperature, or the exhaust pressure of the compressor is greater than or equal to the first preset pressure, determine that the motor speed of the vacuum pump is the first operating speed;

S22: The processor 100 controls the motor of the vacuum pump to run at a first rotational speed.

Optionally, the value range of the first preset temperature is 65°C to 75°C;

In this embodiment, the motor speed of the vacuum pump depends on the value range of the first preset temperature. For example, the first preset temperature is 65°C, the speed of the motor runs at the fourth speed, and the air conditioning system is at level 4 noise reduction; the first preset temperature is 70°C, the speed of the motor runs at the fifth speed, and the air conditioning system is at level 5 Level 1 noise reduction; the first preset temperature is 75°C, the speed of the motor runs at the sixth speed, and the air conditioning system is 6 levels of noise reduction.

In this embodiment, the discharge temperature of the compressor is higher than the first preset temperature, and the motor speed of the vacuum pump needs to be increased to the target speed to meet the purpose of noise reduction, that is, the motor of the vacuum pump runs at the first speed.

Optionally, the value range of the first preset pressure is 2.5Mpa to 2.6Mpa, and the adjustment method of the motor speed is the same as the adjustment method according to the exhaust gas temperature, which will not be repeated here.

In this embodiment, the noise reduction level of the air-conditioning system can be changed according to the user's actual usage requirements, and then the motor speed of the vacuum pump can be changed.

Optionally, as shown in FIG. 4 , an embodiment of the present disclosure provides another control method for noise reduction of an air conditioner, including:

S31: When the air conditioner is turned on, the processor 100 controls the vacuum pump to start;

S32: Obtain the discharge temperature or discharge pressure of the compressor;

S33: the processor 100 controls the operating speed of the motor of the vacuum pump according to the exhaust temperature or the exhaust pressure of the compressor;

S34: Obtain the operating frequency of the compressor;

S35: The processor 100 controls the set duration of operation of the vacuum pump according to the operating frequency of the compressor.

In this embodiment, the operating speed and operating time of the vacuum pump are controlled through the exhaust temperature or pressure of the compressor and the operating frequency of the compressor, which can further reduce the energy consumption of the vacuum pump.

In this embodiment, the discharge temperature or pressure of the compressor can also adjust the operating frequency of the compressor, thereby controlling the set duration of operation of the vacuum pump.

In this embodiment, if the operating frequency of the compressor is always unstable, the vacuum pump needs to work continuously to ensure that the noise of the compressor will not be transmitted to the external environment. However, when the operating frequency of the compressor is stable, the The exhaust temperature or exhaust pressure reduces the speed of the vacuum pump motor, gradually reducing the power of the vacuum pump.

However, when the compressor is running at a stable frequency, the rotation speed of the vacuum pump is reduced. In order to further reduce the energy consumption of the vacuum pump, the vacuum pump can also be directly turned off.

In some embodiments, the operating frequency of the compressor is gradually increased to a set frequency or gradually decreased to a set frequency, and the vacuum pump is controlled to run for a first set duration.

In this embodiment, according to the needs of the user, the operating frequency of the compressor is gradually increased. After increasing to a certain frequency, the operating frequency of the user is met, and the operating frequency of the compressor gradually tends to a stable frequency. The working time of the vacuum pump is the time when the operating frequency of the compressor gradually increases to a stable frequency. At this time, the temperature and pressure of the refrigerant in the air conditioning system also tend to be stable, and the noise generated by the compressor is small. At this time, the vacuum pump can be turned on closure.

In this embodiment, the operating frequency of the compressor decreases gradually. After decreasing to a certain frequency, the operating frequency of the compressor gradually tends to a stable frequency, and the vacuum pump can also be turned off.

Optionally, as shown in FIG. 5, the processor 100 controls the set duration of operation of the vacuum pump according to the operating frequency of the compressor, including:

S41: the compressor runs at the set first operating frequency and continues to run for the first preset time, and determines that the vacuum pump is turned off;

S42: The processor 100 adjusts the vacuum pump to an off state.

In this embodiment, the running time of the vacuum pump depends on the running frequency of the compressor and the continuous running time of the compressor at the running frequency. Exemplarily, the value range of the first operating frequency is 30 Hz to 60 Hz. The first preset duration may be 10 minutes, 15 minutes or 20 minutes.

In this embodiment, if the operating frequency of the compressor is 40 Hz and continues to run for 15 minutes, the torque of the compressor is smaller than when the compressor was just started, and the noise is smaller, indicating that the operating frequency of the compressor is stable. Because the doors and windows are generally closed when the air conditioner is running, the noise of the compressor can hardly be transmitted to the indoor side, so the noise generated does not affect the user, and the vacuum pump is turned off to reduce the energy consumption of the vacuum pump.

In this embodiment, the first operating frequency of the compressor and the first preset duration must be satisfied simultaneously to turn off the vacuum pump. Among them, the running time of the vacuum pump can also be changed according to the actual needs of users to ensure that the purpose of noise reduction is met.

In some embodiments, the vacuum pump is controlled to be turned off when the air conditioner operates in a comfort mode, an energy saving mode or a sleep mode.

In this embodiment, when the air conditioner operates in a comfort mode, an energy-saving mode or a sleep mode, the operating frequency of the compressor is stable and the load is relatively small. At this time, the torque of the compressor is smaller, and the vibration is smaller during operation, so the noise generated does not affect the user.

Here, take the air conditioner running in sleep mode as an example. For example, there is a sleep mode button on the remote control of the air conditioner, and the user can start the sleep mode by pressing the button, or the user can also use the To realize the opening of the sleep mode, wherein, the client can be an APP installed on a mobile terminal, and the mobile terminal includes but is not limited to a mobile phone, a tablet computer, and the like. The vacuum pump is controlled to be turned off by acquiring the frequency of the compressor, or the processor 100 directly controls the vacuum pump to be turned off in sleep mode, so that energy consumption of the vacuum pump is reduced and cooling and heating effects of the air conditioner are ensured.

As shown in FIG. 6 , an embodiment of the present disclosure provides an apparatus for noise reduction of an air conditioner, including a processor (processor) 100 and a memory (memory) 101 . Optionally, the device may further include a communication interface (Communication Interface) 102 and a bus 103 . Wherein, the processor 100 , the communication interface 102 , and the memory 101 can communicate with each other through the bus 103 . Communication interface 102 may be used for information transfer. The processor 100 may call the logic instructions in the memory 101 to execute the control method for noise reduction of an air conditioner in the above embodiments.

In addition, the above logic instructions in the memory 101 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.

As a computer-readable storage medium, the memory 101 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes the program instructions/modules stored in the memory 101 to execute functional applications and data processing, that is, to realize the control method for noise reduction of the air conditioner in the above-mentioned embodiments.

The memory 101 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a non-volatile memory.

An embodiment of the present disclosure provides an air conditioner, including the device for reducing noise of an air conditioner described in any one of the above embodiments.

An embodiment of the present disclosure provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned control method for noise reduction of an air conditioner.

The above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc. A medium that can store program code, or a transitory storage medium.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, procedural, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well unless the context clearly indicates otherwise . Similarly, the term "and/or" as used in this application is meant to include any and all possible combinations of one or more of the associated listed ones. Additionally, when used in this application, the term "comprise" and its variants "comprises" and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element. Herein, what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other. For the method, product, etc. disclosed in the embodiment, if it corresponds to the method part disclosed in the embodiment, then the relevant part can refer to the description of the method part.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraints of the technical solution. Said artisans may implement the described functions using different methods for each particular application, but such implementation should not be regarded as exceeding the scope of the disclosed embodiments. The skilled person can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. 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 may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the disclosure. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific agreement between different operations or steps. order. For example, two consecutive operations or steps may, in fact, be performed substantially concurrently, or they may sometimes be performed in the reverse order, depending upon the functionality involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Claims (8)

1. A control method for noise reduction of an air conditioner, the air conditioner comprising:

a compressor;

a cover case which is arranged at the periphery of the compressor and forms a gap with the outer surface of the compressor;

the vacuum pump is communicated with the gap and is used for vacuumizing the gap;

the control method comprises the following steps:

when the air conditioner is started, controlling the vacuum pump to start;

acquiring the exhaust temperature or exhaust pressure of the compressor and the operating frequency of the compressor;

controlling the operation rotating speed and the operation set time of a motor of the vacuum pump according to the exhaust temperature or the exhaust pressure of the compressor and the operation frequency of the compressor;

under the condition that the operation frequency of the compressor is unstable, controlling the vacuum pump to continuously operate, and controlling the operation rotating speed of a motor of the vacuum pump according to the exhaust temperature or the exhaust pressure of the compressor;

and under the condition that the operating frequency of the compressor is stable, controlling to reduce the operating rotating speed of a motor of the vacuum pump or controlling to close the vacuum pump.

2. The control method according to claim 1, wherein the higher the discharge temperature or the discharge pressure of the compressor is, the faster the motor speed of the vacuum pump is.

3. The control method according to claim 2, wherein controlling the operation rotation speed of the motor of the vacuum pump according to the discharge temperature or discharge pressure of the compressor comprises:

and controlling the motor of the vacuum pump to run at a first rotation speed when the exhaust temperature of the compressor is greater than or equal to a first preset temperature or the exhaust pressure of the compressor is greater than or equal to a first preset pressure.

4. The control method according to claim 1, wherein the case where the operation frequency of the compressor is stable includes:

the compressor is operated at a set first operating frequency and continuously operated for a first preset period of time.

5. The control method according to claim 1, wherein the vacuum pump is controlled to be turned off in the case where the air conditioner is operated in a comfort mode, an energy saving mode, or a sleep mode.

6. An apparatus for air conditioner noise reduction comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for air conditioner noise reduction of any one of claims 1 to 5 when the program instructions are executed.

7. An air conditioner comprising the device for air conditioner noise reduction according to claim 6.

8. A storage medium storing program instructions which, when executed, perform the control method for air conditioner noise reduction of any one of claims 1 to 5.