Noise reduction method and device of refrigerator and electronic equipment

Abstract

The application provides a noise reduction method and device for a refrigerator and an electronic device, the refrigerator comprising a vacuum motor for vacuumizing, and the noise reduction method comprises the following steps: when a vacuum motor working instruction for starting the vacuum motor is received, it is detected whether the compressor is in a working state; if it is detected that the compressor is in a non-working state, the vacuum motor is controlled to work; or if it is detected that the compressor is in a working state, the rotating speed of the compressor is reduced, and the vacuum motor is controlled to work. The application can reduce the noise of the refrigerator.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a method, device and electronic equipment for noise reduction of a refrigerator. Background Technology

[0002] As society progresses, users' demands for refrigerators are also increasing, hoping that refrigerators can maintain the freshness of food as much as possible. To ensure the freshness of stored food, many refrigerators are equipped with a vacuum module. The vacuum motor in the vacuum module works to create a vacuum, thus ensuring the freshness of the stored food. However, because the vacuum motor vibrates a lot during operation, it generates considerable noise, which negatively impacts the user experience. Summary of the Invention

[0003] The purpose of this application is to provide a method, device, and electronic device for reducing the noise of a refrigerator.

[0004] In some embodiments of this application, a noise reduction method for a refrigerator is provided, the refrigerator including a vacuum motor for vacuuming, characterized in that the noise reduction method includes:

[0005] When a vacuum motor operation command is received to start the vacuum motor, it is checked whether the compressor is in operation.

[0006] If the compressor is detected to be in a non-operating state, then the vacuum motor is controlled to operate; or,

[0007] If the compressor is detected to be in operation, the compressor speed is reduced, and the vacuum motor is activated.

[0008] In some embodiments of this application, the vacuum module containing the vacuum motor is located on the door of the refrigerator.

[0009] In some embodiments of this application, a noise reduction device for a refrigerator is provided, the refrigerator including a vacuum motor for vacuuming, the noise reduction device being configured as follows:

[0010] When a vacuum motor operation command is received to start the vacuum motor, it is checked whether the compressor is in operation.

[0011] If the compressor is detected to be in a non-operating state, then the vacuum motor is controlled to operate; or,

[0012] If the compressor is detected to be in operation, the compressor speed is reduced, and the vacuum motor is activated.

[0013] In some embodiments of this application, a noise reduction electronic device for a refrigerator is provided, comprising: a memory storing computer-readable instructions; and a processor reading the computer-readable instructions stored in the memory to execute the method described in any of the preceding claims.

[0014] In some embodiments of this application, a computer program medium is provided that stores computer-readable instructions, which, when executed by a computer's processor, cause the computer to perform the method described in any of the preceding claims.

[0015] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0016] In this application, while controlling the vacuum motor to operate, the compressor is controlled to remain stationary or operate at a relatively low speed. This method reduces the combined noise from the vacuum motor and the compressor, thereby lowering the overall noise level of the refrigerator during vacuuming. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] In the attached diagram:

[0019] Figure 1 This is a flowchart illustrating a noise reduction method for a refrigerator according to an embodiment of the present disclosure.

[0020] Figure 2 This is a flowchart illustrating a noise reduction method for a refrigerator according to an embodiment of the present disclosure.

[0021] Figure 3 This is a flowchart illustrating a noise reduction method for a refrigerator according to an embodiment of the present disclosure. Detailed Implementation

[0022] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] In the description of this specification, the terms "some embodiments," "one embodiment," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] This application provides a noise reduction method for a refrigerator, the refrigerator including a vacuum motor for vacuuming. The noise reduction method includes:

[0026] When a vacuum motor operation command is received to start the vacuum motor, it is checked whether the compressor is in operation.

[0027] If the compressor is detected to be in a non-operating state, then the vacuum motor is controlled to operate; or,

[0028] If the compressor is detected to be in operation, the compressor speed is reduced, and the vacuum motor is activated.

[0029] In this application, while controlling the vacuum motor to operate, the compressor is controlled to remain stationary or operate at a relatively low speed. This method reduces the combined noise from the vacuum motor and the compressor, thereby lowering the overall noise level of the refrigerator during vacuuming.

[0030] It should be noted that after the vacuum motor is turned on, the compressor status will be continuously monitored during the operation of the vacuum motor. If the compressor, which is in a stationary state, needs to start automatically for a specific reason (such as reaching the preset automatic start time) during the operation of the vacuum motor, the compressor will be controlled to remain stationary; if the compressor, which is at a low speed, needs to automatically increase its speed for a specific reason (such as the temperature of the chamber rising) during the operation of the vacuum motor, the compressor will be controlled to remain at a low speed.

[0031] In some embodiments, the vacuum module containing the vacuum motor is located on the door of the refrigerator.

[0032] In this embodiment, the vacuum module is installed on the refrigerator door. The user can perform a vacuuming operation by manipulating the door. Specifically, the door has a slot for accommodating a bag (e.g., a packaging bag) and an activation button for initiating the vacuuming operation. The user places the bag in the slot and presses the activation button, activating the vacuum motor in the vacuum module to evacuate the bag.

[0033] Figure 1 A flowchart illustrating a noise reduction method for a refrigerator according to some embodiments of this application is shown.

[0034] In this embodiment, upon receiving a command to operate the vacuum motor, the system checks whether the compressor is currently operating. If the compressor is not operating, the system controls the vacuum motor to operate; if the compressor is operating, the system first reduces the compressor's speed before controlling the vacuum motor to operate.

[0035] Specifically, controlling the compressor speed to decrease can be achieved by reducing the compressor speed to the speed required for silent operation. For example, when the compressor operates at 2000 rpm or below, the noise it produces is usually imperceptible to the user. In other words, when the compressor operates at 2000 rpm or below, it is in silent operation mode. In this case, when a vacuum motor operating command is received, if the compressor is already running, the compressor speed can be reduced to 2000 rpm first, and then the vacuum motor can be activated.

[0036] In some embodiments, controlling the vacuum motor to operate includes:

[0037] Determine the vacuum level of the work object being evacuated by the vacuum motor;

[0038] The speed of the vacuum motor is controlled based on the vacuum level, and the speed of the vacuum motor is positively correlated with the vacuum level.

[0039] In this embodiment, the speed of the vacuum motor is controlled according to the vacuum level of the working object.

[0040] Specifically, when controlling the operation of a vacuum motor, the vacuum level of the object being vacuumed is determined. The object being vacuumed refers to the object being evacuated (e.g., a packaging bag being evacuated). The speed of the vacuum motor is then controlled based on this vacuum level, which is positively correlated with the vacuum level (e.g., if the vacuum level is 0.9 atmospheres, the speed is controlled as N1; if the vacuum level is 0.8 atmospheres, the speed is controlled as N2). <N1)。

[0041] In some embodiments, controlling the rotational speed of the vacuum motor based on the vacuum level includes:

[0042] If the vacuum level is higher than the first pressure threshold, the vacuum motor is controlled to operate at the first speed.

[0043] If the vacuum level is lower than or equal to the first pressure threshold and higher than the second pressure threshold, the vacuum motor is controlled to operate at a second speed, wherein the first speed is higher than the second speed.

[0044] If the vacuum level is lower than or equal to the second pressure threshold, the vacuum motor is controlled to stop working, wherein the second pressure threshold is lower than the first pressure threshold.

[0045] In this embodiment, for the control of the vacuum motor's rotational speed, pressure thresholds are set to determine the timing of speed switching, namely a first pressure threshold and a second pressure threshold. The second pressure threshold is lower than the first pressure threshold. Let the first rotational speed be N1, the second rotational speed be N2, and N2... <N1。

[0046] If the vacuum level is higher than the first pressure threshold, control the vacuum motor to operate at speed N1; if the vacuum level is lower than or equal to the first pressure threshold but higher than the second pressure threshold, control the vacuum motor to operate at speed N2; if the vacuum level is lower than or equal to the second pressure threshold, control the vacuum motor to stop operating.

[0047] In some embodiments, controlling the vacuum motor to operate includes:

[0048] Determine the duration of operation of the vacuum motor in this task;

[0049] The speed of the vacuum motor is controlled based on the length of time it has been in operation, and the speed of the vacuum motor is inversely related to the length of time it has been in operation.

[0050] In this embodiment, the speed of the vacuum motor is controlled accordingly based on the working time of the vacuum motor.

[0051] Specifically, when controlling the operation of the vacuum motor, the duration of operation of the vacuum motor in this operation is determined; then, the speed of the vacuum motor is controlled based on the duration of operation, and the speed of the vacuum motor is inversely related to the duration of operation.

[0052] For example: The user places bag A on the vacuum module and presses the start button, causing the vacuum motor to evacuate bag A. If the vacuum motor evacuates bag A for less than 3 seconds, the motor speed is controlled at N1; if the vacuum motor evacuates bag A for 3 seconds but less than 6 seconds, the motor speed is controlled at N2; if the vacuum motor evacuates bag A for 6 seconds, the motor stops operating. N2... <N1。

[0053] After vacuuming bag A, the user places bag B in the vacuum module and presses the start button to activate the vacuum motor to vacuum bag B. When the vacuum motor has been vacuuming bag B for less than 3 seconds, the motor speed is controlled at N1; when the vacuum motor has been vacuuming bag B for 3 seconds but less than 6 seconds, the motor speed is controlled at N2; when the vacuum motor has been vacuuming bag B for 6 seconds, the motor stops operating.

[0054] In some embodiments, if the compressor is detected to be in a non-operating state, the method of controlling the vacuum motor to operate further includes:

[0055] If the vacuum motor is detected to have stopped working, monitor whether a compressor start command has been received.

[0056] If no compressor start command is received, the compressor is kept stationary; or,

[0057] If a compressor start command is received, the compressor will be controlled to operate.

[0058] In this embodiment, for a compressor that is in a non-working state before the vacuum motor starts working, the compressor's status is continuously monitored after the vacuum motor finishes working. If no compressor start command is received, the compressor is controlled to remain stationary; if a compressor start command is received, the compressor is controlled to start working.

[0059] In some embodiments, if the compressor is detected to be in operation, the compressor speed is reduced and the vacuum motor is controlled to operate. The method further includes: if the vacuum motor is detected to have stopped operating, the compressor speed is restored.

[0060] In this embodiment, for a compressor that is in operation before the vacuum motor starts working, the compressor speed is restored after the vacuum motor stops working.

[0061] For example: before the vacuum motor starts working, the compressor operates at a speed of 3800 r / min; when the vacuum motor starts working, the compressor speed is reduced to 2000 r / min; after the vacuum motor finishes working, the compressor speed is restored to 3800 r / min.

[0062] Figure 2 A flowchart illustrating the noise reduction process of a refrigerator according to some embodiments of this application is shown.

[0063] In this embodiment, after the user presses the vacuum module start button, the refrigerator detects whether the compressor is working.

[0064] If the compressor is in operation, reduce the rotation speed of the compressor to 2000r / min, and then control the vacuum motor to operate at rotation speed N1. During the operation of the vacuum motor at rotation speed N1, continuously monitor whether the vacuum degree of its working object is less than or equal to 0.8 atmospheric pressure. If the vacuum degree is not less than or equal to 0.8 atmospheric pressure, control the vacuum motor to continue operating at rotation speed N1; if the vacuum degree is less than or equal to 0.8 atmospheric pressure, control the vacuum motor to reduce speed and switch the rotation speed to N2, where N2 < N1. During the operation of the vacuum motor at rotation speed N2, continuously monitor whether the vacuum degree of its working object reaches 0.65 atmospheric pressure. If the vacuum degree does not reach 0.65 atmospheric pressure, control the vacuum motor to continue operating at rotation speed N2; if the vacuum degree reaches 0.65 atmospheric pressure, control the vacuum motor to stop operating, and control the compressor to switch to the rotation speed before the vacuum motor operated.

[0065] If the compressor is not in operation, control the vacuum motor to operate at rotation speed N1. During the operation of the vacuum motor at rotation speed N1, continuously monitor whether the vacuum degree of its working object is less than or equal to 0.8 atmospheric pressure. If the vacuum degree is not less than or equal to 0.8 atmospheric pressure, control the vacuum motor to continue operating at rotation speed N1; if the vacuum degree is less than or equal to 0.8 atmospheric pressure, control the vacuum motor to reduce speed and switch the rotation speed to N2, where N2 < N1. During the operation of the vacuum motor at rotation speed N2, continuously monitor whether the vacuum degree of its working object reaches 0.65 atmospheric pressure. If the vacuum degree does not reach 0.65 atmospheric pressure, control the vacuum motor to continue operating at rotation speed N2; if the vacuum degree reaches 0.65 atmospheric pressure, control the vacuum motor to stop operating, and then control whether to start the compressor according to whether the compressor meets the starting condition.

[0066] In one embodiment, controlling the operation of the vacuum motor further comprises: if the opening of the compartment door is detected, controlling the compartment fan to stop operating; if the closing of the compartment door is subsequently detected, controlling the compartment fan to resume operation.

[0067] In this embodiment, during the operation of the vacuum motor, whether the compartment fan operates is controlled according to whether the compartment door is opened. Specifically, during the operation of the vacuum motor, if the opening of the compartment door is detected, control the compartment fan to stop operating; if the closing of the compartment door is subsequently detected, control the compartment fan to resume operation.

[0068] For example: during the operation of the vacuum motor, the cold storage compartment fan operates at a rotation speed of 3800r / min in the closed cold storage compartment. A user opens the cold storage compartment door; in this case, when the refrigerator detects that the cold storage compartment door is opened, the refrigerator controls the cold storage compartment fan to stop rotating; then the user closes the cold storage compartment door, in this case, when the refrigerator detects that the cold storage compartment door is closed, the refrigerator controls the cold storage compartment fan to resume operation, still operating at the rotation speed of 3800r / min.

[0069] Figure 3 It shows a noise reduction flow chart of a refrigerator according to some embodiments of the present application.

[0070] In this embodiment, after a user presses a vacuum module start button, the refrigerator detects whether a compressor is operating.

[0071] If the compressor is operating, the rotation speed of the compressor is reduced to 2000 r / min, and then the vacuum motor is controlled to operate at a rotation speed N1. During the operation of the vacuum motor at the rotation speed N1, whether the vacuum degree of the working object thereof is less than or equal to 0.8 atmosphere is continuously monitored. If the vacuum degree is not less than or equal to 0.8 atmosphere, the vacuum motor is controlled to continue operating at the rotation speed N1; if the vacuum degree is less than or equal to 0.8 atmosphere, the vacuum motor is controlled to reduce the speed, and the rotation speed is switched to N2, wherein N2<N1. During the operation of the vacuum motor at the rotation speed N2, whether the vacuum degree of the working object thereof reaches 0.65 atmosphere is continuously monitored. If the vacuum degree does not reach 0.65 atmosphere, the vacuum motor is controlled to continue operating at the rotation speed N2; if the vacuum degree reaches 0.65 atmosphere, the vacuum motor is controlled to stop operating, and the compressor is controlled to switch to the rotation speed before the vacuum motor operates.

[0072] If the compressor is not operating, the vacuum motor is controlled to operate at the rotation speed N1. During the operation of the vacuum motor at the rotation speed N1, whether the vacuum degree of the working object thereof is less than or equal to 0.8 atmosphere is continuously monitored. If the vacuum degree is not less than or equal to 0.8 atmosphere, the vacuum motor is controlled to continue operating at the rotation speed N1; if the vacuum degree is less than or equal to 0.8 atmosphere, the vacuum motor is controlled to reduce the speed, and the rotation speed is switched to N2, wherein N2<N1. During the operation of the vacuum motor at the rotation speed N2, whether the vacuum degree of the working object thereof reaches 0.65 atmosphere is continuously monitored. If the vacuum degree does not reach 0.65 atmosphere, the vacuum motor is controlled to continue operating at the rotation speed N2; if the vacuum degree reaches 0.65 atmosphere, the vacuum motor is controlled to stop operating, and then whether to start the compressor is controlled according to whether the compressor meets the starting condition.

[0073] During the operation of the vacuum motor (whether operating at the rotation speed N1 or the rotation speed N2), whether a compartment door is opened is continuously monitored. If it is detected that the compartment door is opened, a compartment fan is controlled to stop operating; then if it is detected that the compartment door is closed, the compartment fan is controlled to resume operation and switch to the rotation speed before the door was opened.

[0074] In some embodiments, controlling the reduction of the rotation speed of the compressor comprises:

[0075] if it is detected that the compartment door is in a closed state, controlling the compressor to operate at a third rotation speed; or

[0076] If the door of the compartment is detected to be open, the compressor is controlled to operate at a fourth speed, wherein the third speed is higher than the fourth speed.

[0077] In this embodiment, when controlling the compressor speed to decrease, the degree of speed reduction is controlled according to whether the compartment door is open.

[0078] Specifically, when the compressor speed is reduced, if the compartment door is detected to be closed, the compressor is controlled to operate at a third speed; if the compartment door is detected to be open, the compressor is controlled to operate at a fourth speed, wherein the third speed is higher than the fourth speed.

[0079] For example, the compressor's original speed is 4000 r / min. When controlling the compressor speed to decrease, if the refrigerator compartment door is detected to be closed, the compressor speed is controlled to decrease to 2000 r / min; conversely, if the refrigerator compartment door is detected to be open, the compressor speed is controlled to decrease to 1500 r / min.

[0080] In some embodiments, the noise reduction method further includes:

[0081] When the vacuum motor is given a working command, check whether the chamber fan is in working condition;

[0082] If both the compressor and the compartment fan are detected to be in a non-operating state, then the vacuum motor is controlled to operate; or,

[0083] If the compressor or the compartment fan is detected to be in operation, the speed of the compressor or the compartment fan in operation will be reduced accordingly, and the vacuum motor will be controlled to operate.

[0084] In this application, while controlling the vacuum motor to operate, the compartment fan is also controlled to remain stationary or operate at a relatively low speed. This method reduces the combined noise from the vacuum motor and the compartment fan, thereby further reducing the overall noise of the refrigerator during vacuuming.

[0085] Specifically: When a vacuum motor operating command is received, it checks whether the compressor and the refrigerator compartment fan are in operation.

[0086] If both the compressor and the refrigerator compartment fan are not in operation, the compressor and refrigerator compartment fan will be kept stationary, and the vacuum motor will be operated.

[0087] If the compressor is in operation and the refrigerator compartment fan is not in operation, the refrigerator compartment fan will be kept stationary, the compressor speed will be reduced accordingly, and the vacuum motor will be activated.

[0088] If the compressor is not in operation but the refrigerator compartment fan is in operation, the compressor will be kept stationary, the speed of the refrigerator compartment fan will be reduced accordingly, and the vacuum motor will be activated.

[0089] If both the compressor and the refrigerator compartment fan are working, the speed of both the compressor and the refrigerator compartment fan will be reduced accordingly, and the vacuum motor will be controlled to work.

[0090] In some embodiments of this application, a noise reduction device for a refrigerator is provided, the refrigerator including a vacuum motor for vacuuming, the noise reduction device being configured as follows:

[0091] When a vacuum motor operation command is received to start the vacuum motor, it is checked whether the compressor is in operation.

[0092] If the compressor is detected to be in a non-operating state, then the vacuum motor is controlled to operate; or,

[0093] If the compressor is detected to be in operation, the compressor speed is reduced, and the vacuum motor is activated.

[0094] In some embodiments of this application, the device is configured as follows:

[0095] Determine the vacuum level of the work object being evacuated by the vacuum motor;

[0096] The speed of the vacuum motor is controlled based on the vacuum level, and the speed of the vacuum motor is positively correlated with the vacuum level.

[0097] In some embodiments of this application, the device is configured as follows:

[0098] If the vacuum level is higher than the first air pressure threshold, the vacuum motor is controlled to operate at the first speed.

[0099] If the vacuum level is lower than or equal to the first pressure threshold and higher than the second pressure threshold, the vacuum motor is controlled to operate at a second speed, wherein the first speed is higher than the second speed.

[0100] If the vacuum level is lower than or equal to the second pressure threshold, the vacuum motor is controlled to stop working, wherein the second pressure threshold is lower than the first pressure threshold.

[0101] In some embodiments of this application, the device is configured as follows:

[0102] Determine the duration of operation of the vacuum motor in this operation;

[0103] The speed of the vacuum motor is controlled based on the already worked duration, and the speed of the vacuum motor is inversely related to the already worked duration.

[0104] In some embodiments of this application, the device is configured as follows:

[0105] If the vacuum motor is detected to have stopped working, then monitor whether a compressor start command has been received;

[0106] If no compressor start command is received, the compressor is kept stationary; or,

[0107] If a compressor start command is received, the compressor is controlled to operate.

[0108] In some embodiments of this application, the device is configured to restore the compressor speed if the vacuum motor is detected to have stopped working.

[0109] In some embodiments of this application, the device is configured as follows:

[0110] If the compartment door is detected to be closed, the compressor is controlled to operate at the third speed; or,

[0111] If the compartment door is detected to be open, the compressor is controlled to operate at a fourth speed, wherein the third speed is higher than the fourth speed.

[0112] In some embodiments of this application, the device is configured as follows:

[0113] When the vacuum motor operation command is received, it is detected whether the chamber fan is in operation.

[0114] If both the compressor and the compartment fan are detected to be in a non-operating state, then the vacuum motor is controlled to operate; or,

[0115] If the compressor or the compartment fan is detected to be in operation, the speed of the compressor or the compartment fan in operation is reduced accordingly, and the vacuum motor is controlled to operate.

[0116] In some embodiments of this application, a noise reduction electronic device for a refrigerator is provided, including a processor and a memory, wherein the memory stores computer-readable instructions that, when executed by the processor, implement the decondensation method for the refrigerator as described above.

[0117] Furthermore, this application can also be implemented through hardware circuits or hardware circuits combined with software instructions. Therefore, the implementation of this application is not limited to any specific hardware circuit, software, or combination thereof.

[0118] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0119] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, having stored thereon computer-readable instructions that, when executed by a computer's processor, cause the computer to perform the methods described in the above method embodiments.

[0120] According to one embodiment of this disclosure, a program product for implementing the methods in the above-described method embodiments is also provided. This program product may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, a readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0121] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0122] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0123] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0124] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as JAVA and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0125] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0126] Furthermore, although the steps of the method in this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0127] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, mobile terminal, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0128] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A method for noise reduction in a refrigerator, the refrigerator comprising a vacuum motor for vacuuming, characterized in that, The vacuum module containing the vacuum motor is mounted on the refrigerator door, and the door has a slot for accommodating a bag; the noise reduction method includes: When a vacuum motor operation command is received to start the vacuum motor, the compressor is checked to determine if it is in operation in order to evacuate the bag placed in the slot. If the compressor is detected to be in a non-operating state, then the vacuum motor is controlled to operate; or, If the compressor is detected to be in operation, the compressor speed is reduced according to whether the compartment door is open, and the vacuum motor is controlled to work to evacuate the bag placed in the slot. The control of the vacuum motor to operate includes: Determine the duration of operation of the vacuum motor in this operation; The speed of the vacuum motor is controlled based on the already worked duration, and the speed of the vacuum motor is inversely correlated with the already worked duration; The method of controlling the compressor speed reduction based on whether the compartment door is open includes: If the compartment door is detected to be closed, the compressor is controlled to operate at the third speed; or, If the compartment door is detected to be open, the compressor is controlled to operate at a fourth speed, wherein the third speed is higher than the fourth speed.

2. The method according to claim 1, characterized in that, Controlling the operation of the vacuum motor includes: Determine the vacuum level of the work object being evacuated by the vacuum motor; The speed of the vacuum motor is controlled based on the vacuum level, and the speed of the vacuum motor is positively correlated with the vacuum level.

3. The method according to claim 2, characterized in that, Controlling the speed of the vacuum motor based on the vacuum level includes: If the vacuum level is higher than the first air pressure threshold, the vacuum motor is controlled to operate at the first speed. If the vacuum level is lower than or equal to the first pressure threshold and higher than the second pressure threshold, the vacuum motor is controlled to operate at a second speed, wherein the first speed is higher than the second speed. If the vacuum level is lower than or equal to the second pressure threshold, the vacuum motor is controlled to stop working, wherein the second pressure threshold is lower than the first pressure threshold.

4. The method according to claim 1, characterized in that, If the compressor is detected to be in a non-operating state, the method further includes controlling the vacuum motor to operate, and: If the vacuum motor is detected to have stopped working, then monitor whether a compressor start command has been received; If no compressor start command is received, the compressor is kept stationary; or, If a compressor start command is received, the compressor is controlled to operate.

5. The method according to claim 1, characterized in that, If the compressor is detected to be in operation, the compressor speed is reduced and the vacuum motor is controlled to operate. The method also includes: if the vacuum motor is detected to have stopped operating, the compressor speed is restored.

6. The method according to claim 1, characterized in that, The noise reduction method further includes: When the vacuum motor operation command is received, it is detected whether the chamber fan is in operation. If both the compressor and the compartment fan are detected to be in a non-operating state, then the vacuum motor is controlled to operate; or, If the compressor or the compartment fan is detected to be in operation, the speed of the compressor or the compartment fan in operation is reduced accordingly, and the vacuum motor is controlled to operate.

7. A noise reduction device for a refrigerator, characterized in that, The refrigerator includes a vacuum motor for vacuuming, and the vacuum module containing the vacuum motor is located on the door of the refrigerator. The door has a slot for receiving a bag. The noise reduction device is configured as follows: When a vacuum motor operation command is received to start the vacuum motor, the compressor is checked to determine if it is in operation in order to evacuate the bag placed in the slot. If the compressor is detected to be in a non-operating state, then the vacuum motor is controlled to operate; or, If the compressor is detected to be in operation, the compressor speed is reduced according to whether the compartment door is open, and the vacuum motor is controlled to work to evacuate the bag placed in the slot. The control of the vacuum motor to operate includes: Determine the duration of operation of the vacuum motor in this operation; The speed of the vacuum motor is controlled based on the already worked duration, and the speed of the vacuum motor is inversely correlated with the already worked duration; The method of controlling the compressor speed reduction based on whether the compartment door is open includes: If the compartment door is detected to be closed, the compressor is controlled to operate at the third speed; or, If the compartment door is detected to be open, the compressor is controlled to operate at a fourth speed, wherein the third speed is higher than the fourth speed.

8. A noise reduction electronic device for a refrigerator, characterized in that, include: Memory, which stores computer-readable instructions; The processor reads computer-readable instructions stored in memory to execute the method described in any one of claims 1-6.

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