Refrigerator and operation control method thereof

Abstract

The invention discloses a refrigerator and an operation control method of the refrigerator, a distance sensor is arranged on the refrigerator and used for detecting the distance between a door body and a box body of the refrigerator, and in the closing process of the door body, the distance, detected by the distance sensor, between the door body and the box body is obtained in real time; calculating the current closing speed of the door body according to the change of the distance; and when the current closing speed is larger than a preset speed threshold value, the draught fan is controlled to operate according to a preset rotating speed value, and air is supplied to the interior of the refrigerator body till the door body is closed. By the adoption of the refrigerator, the door closing force of the user can be recognized by calculating the closing speed of the door body, when it is recognized that the door closing force of the user is too large, air buffering is formed in the refrigerator, the vibration amplitude and door closing noise generated by door closing are reduced, and the storage quality of food materials and the use experience of the user are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator and an operation control method of the refrigerator. Background Art

[0002] With the development of economy and the improvement of people's living standard, refrigerator has already become the indispensable household appliance in people's daily life. In daily life, when the user finishes using the refrigerator, usually the user will casually throw the refrigerator door to close it.

[0003] However, the inventors have discovered that the prior art has at least the following problems: when users close the refrigerator door, they sometimes use too much force, which causes a certain vibration to the refrigerator body at the moment the door is closed, causing an adverse effect on the storage environment of the food in the refrigerator, thereby reducing the storage quality of the food in the refrigerator, and a loud, sudden noise is emitted at the moment the door is closed, which may accidentally scare the elderly or children in the home, giving users a bad user experience. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a refrigerator and a refrigerator operation control method, which can form an air buffer inside the refrigerator when it is identified that the user's door closing force is too large, reduce the vibration amplitude and door closing noise generated by closing the door, and improve the storage quality of food and the user's experience.

[0005] To achieve the above object, an embodiment of the present invention provides a refrigerator, comprising:

[0006] Box;

[0007] A door body, arranged at the opening of the box body, for realizing opening or closing of the box body;

[0008] A distance sensor is provided on the box body and is used to detect the distance between the door body and the box body;

[0009] A fan, disposed in the box, for supplying air to the inside of the box;

[0010] Controller for:

[0011] During the closing process of the door body, the distance between the door body and the box body detected by the distance sensor is acquired in real time;

[0012] Calculating the current closing speed of the door body according to the change of the distance;

[0013] When the current closing speed is greater than a preset speed threshold, the fan is controlled to operate at a preset speed value to supply air to the interior of the box until the door is closed.

[0014] As an improvement of the above solution, the preset speed value is a preset maximum operating speed of the fan.

[0015] As an improvement of the above solution, the refrigerator further includes:

[0016] A sound player, arranged on the box, for playing preset sound information;

[0017] The controller is also used for:

[0018] When the current closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed.

[0019] As an improvement of the above solution, when the closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed, including:

[0020] When the current closing speed is greater than a preset speed threshold, according to a preset correspondence between the closing speed and the playing volume, the playing volume corresponding to the current closing speed of the door body is obtained as the target playing volume;

[0021] The sound player is controlled to start, and the preset sound information is played according to the target playing volume until the door is closed.

[0022] As an improvement to the above solution, the preset sound information is set in the following manner:

[0023] According to a preset correspondence between a refrigerator model and a noise amplitude, determining a noise amplitude generated when the refrigerator door is closed as a target noise amplitude;

[0024] Determine the reverse waveform music corresponding to the target noise amplitude and generate the preset sound information.

[0025] As an improvement to the above solution, the preset sound information is set in the following manner:

[0026] Receiving a sound information setting instruction input by a user; wherein the sound information setting instruction includes the sound information set by the user;

[0027] The preset sound information is generated according to the sound information setting instruction.

[0028] As an improvement of the above solution, the distance sensor is a radar sensor.

[0029] An embodiment of the present invention further provides an operation control method of a refrigerator, the refrigerator comprising:

[0030] Box;

[0031] A door body, arranged at the opening of the box body, for realizing opening or closing of the box body;

[0032] A distance sensor is provided on the box body and is used to detect the distance between the door body and the box body;

[0033] A fan, disposed in the box, for supplying air to the inside of the box;

[0034] The method comprises:

[0035] During the closing process of the door body, the distance between the door body and the box body detected by the distance sensor is acquired in real time;

[0036] Calculating the current closing speed of the door body according to the change of the distance;

[0037] When the current closing speed is greater than a preset speed threshold, the fan is controlled to operate at a preset speed value to supply air to the interior of the box until the door is closed.

[0038] As an improvement of the above solution, the refrigerator further includes:

[0039] A sound player, arranged in the box, for playing preset sound information;

[0040] The controller is also used for:

[0041] When the current closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed.

[0042] As an improvement of the above solution, when the closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed, including:

[0043] When the current closing speed is greater than a preset speed threshold, according to a preset correspondence between the closing speed and the playing volume, the playing volume corresponding to the current closing speed of the door body is obtained as the target playing volume;

[0044] The sound player is controlled to start, and the preset sound information is played according to the target playing volume until the door is closed.

[0045] Compared with the prior art, the refrigerator and the operation control method of the refrigerator disclosed in the present invention detect the distance between the door body and the refrigerator body by setting a distance sensor, so that in the closing process of the refrigerator door body, the current closing speed of the door body is calculated according to the change of the distance between the door body and the refrigerator body. When it is detected that the closing speed of the current door body is large, it is considered that the user's closing force is large, and the door body will generate a large vibration amplitude and noise at the moment of closing. By controlling the fan to run at a high speed before the door body is closed, the air volume is instantly increased, so that the inside of the box can instantly increase the gas, so that at the moment of closing the door body, due to the high gas content in the box, a certain air buffer is generated for the door body, the vibration amplitude generated by the door body when closing the door is reduced, and the noise at the moment of closing the door body is effectively reduced, and the influence of the closing vibration on the food storage environment in the refrigerator is also reduced, the storage quality of the food is improved, and the user's experience is improved. In addition, the present invention can reuse the existing human body sensing sensor on the refrigerator as the distance sensor, realize the recognition of the door closing speed without the need to add an additional distance sensor, improve the utilization rate of the original sensor of the refrigerator, and reduce the production cost of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a first structural schematic diagram of a refrigerator provided by an embodiment of the present invention;

[0047] Figure 2 is a second structural schematic diagram of a refrigerator in an embodiment of the present invention;

[0048] Figure 3 is a schematic diagram of the installation position of the distance sensor in an embodiment of the present invention;

[0049] Figure 4 is a schematic diagram of the working principle of the distance sensor in an embodiment of the present invention;

[0050] Figure 5 is a schematic diagram of a first working process of a controller of a refrigerator in an embodiment of the present invention;

[0051] Figure 6 is a third structural schematic diagram of a refrigerator in an embodiment of the present invention;

[0052] Figure 7 is a fourth structural schematic diagram of a refrigerator in an embodiment of the present invention;

[0053] Figure 8 is a schematic diagram of a second working process of a controller of a refrigerator in an embodiment of the present invention;

[0054] Fig. 9 is a schematic diagram of a third working process of the controller of the refrigerator in an embodiment of the present invention;

[0055] Fig.10It is a flow chart of a refrigerator operation control method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0057] See also Figure 1 , is a first structural schematic diagram of a refrigerator provided by an embodiment of the present invention, and an embodiment of the present invention provides a refrigerator 10, including a box body 11 and a door body 12, wherein the door body 12 is disposed at the opening of the box body 11, and is used to realize opening or closing of the box body 11. Optionally, the door body 12 may be in the form of a flat door, a sliding door, or a drawer-type door body, which is not specifically limited herein.

[0058] At least one storage chamber, such as a refrigerator and / or a freezer, is formed in the housing 11 for storing items that need to be kept fresh or frozen. The refrigerator also includes a refrigeration system for performing refrigeration operations of the refrigerator.

[0059] It should be noted that the refrigerator performs refrigeration operation through the refrigeration system, provides cold energy to be transmitted to the storage chamber, so that the storage chamber is maintained at a constant low temperature state. Specifically, the refrigeration system of the refrigerator described in the embodiment of the present invention is composed of a compressor, a condenser, a drying filter, a capillary tube, and an evaporator, and the working structure of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process.

[0060] The compression process is as follows: plug in the power cord of the refrigerator, and when the box needs to be cooled, the compressor starts to work, and the low-temperature, low-pressure refrigerant is sucked into the compressor, compressed into high-temperature, high-pressure superheated gas in the compressor cylinder, and then discharged into the condenser; the condensation process is as follows: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, the temperature continues to drop, and is gradually cooled to a saturated vapor at room temperature and high pressure, and further cooled to a saturated liquid, and the temperature no longer drops. The temperature at this time is called the condensation temperature. The pressure of the refrigerant remains almost unchanged during the entire condensation process; the throttling process is as follows: the condensed refrigerant saturated liquid flows into the capillary after the moisture and impurities are filtered out by the drying filter, and the refrigerant is throttled and depressurized through it, and the refrigerant becomes a wet vapor at room temperature and low pressure; the evaporation process is as follows: it then begins to absorb heat and vaporize in the evaporator, which not only reduces the temperature of the evaporator and its surroundings, but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant coming out of the evaporator returns to the compressor again, repeating the above process, transferring the heat in the refrigerator to the air outside the box, and achieving the purpose of refrigeration.

[0061] Further, see Figure 2 , is a second structural schematic diagram of a refrigerator in an embodiment of the present invention, wherein the refrigerator 10 further includes a distance sensor 13, a fan 14 and a controller 15.

[0062] The distance sensor 13 is disposed on the box body 11, and is used to detect the distance between the door body 12 and the box body 11. Preferably, the distance sensor 13 is a radar sensor, preferably a microwave radar sensor.

[0063] A microwave sensor is a sensor that uses microwave signals to detect the position and motion of an object. It usually consists of a transmitter and a receiver. The transmitter transmits microwave signals, and then the receiver receives these signals and converts them into electrical signals. When an object enters the detection range of the sensor, the microwave signal will be absorbed or reflected by the object, which will affect the signal received by the receiver, so that it can be used to detect the position and motion of the object.

[0064] In the prior art, the microwave radar sensor is set as a human body sensing sensor to detect whether there is a user in a certain sensing area in front of the refrigerator. When the microwave radar sensor detects a person, it sends a signal to the refrigerator control panel, and can light up the refrigerator display screen and control the refrigerator lights according to the human sensing signal. In the embodiment of the present invention, the microwave radar sensor is reused to detect the distance between the door body 12 and the box body 11 after the door body 12 of the refrigerator is opened, and no additional sensor needs to be installed, which saves the production cost of the refrigerator.

[0065] In the embodiment of the present invention, the door body 12 is taken as a double swing door as an example. Figure 3, is a schematic diagram of the installation position of the distance sensor in an embodiment of the present invention. The microwave radar sensor is installed in the middle position of the box body 11, that is, between the two doors. When the refrigerator is closed, the distance sensor can send a detection signal from the gap between the two doors, thereby sensing whether there is an obstacle in front of the refrigerator.

[0066] See also Figure 4 , is a schematic diagram of the working principle of the distance sensor in an embodiment of the present invention. In the embodiment of the present invention, the microwave radar sensor forms a fan-shaped detection area by sending a detection signal, which is used to detect obstacles within the detection area and detect whether there are human activities in the detection area. At the same time, it can also detect the position of the refrigerator door 12.

[0067] It should be noted that, in order to distinguish whether the obstacle detected by the microwave radar sensor is a door body or a human body, the distinction can be made by whether the detected obstacle is located on the preset door body movement route. Of course, the distinction can also be made in other ways, which are all foreseeable and implementable by technical personnel in this field based on existing technical means and do not affect the beneficial effects achieved by the present invention.

[0068] Furthermore, the microwave radar sensor obtains the distance between the door body 12 and the box body 11 according to the detected position of the door body 12 , and generates a corresponding feedback signal to send to the controller 15 .

[0069] It should be noted that the distance sensor 13 may also be other forms of sensors, such as an infrared light sensor, etc., as long as it can realize the function of detecting the distance between the door body 12 and the box body 11, and it does not constitute a limitation to the present invention.

[0070] Furthermore, a fan 14 is disposed in the box 11 for supplying air to the interior of the box 11 .

[0071] Optionally, the fan 14 may be a fan component originally provided at the air outlet of the compartment of the refrigerator, and no additional provision is required, thus saving the production cost of the refrigerator.

[0072] Furthermore, the controller 15 is connected to the distance sensor 13 and the fan 14 respectively, and can receive the distance information sent by the distance sensor 13, and implement the issuance of control instructions to the fan 14 to control the operating state of the fan 14. Figure 5 , is a schematic diagram of a first working process of a controller of a refrigerator in an embodiment of the present invention, wherein the controller 15 is used to execute steps S11 to S13:

[0073] S12, during the closing process of the door body, obtaining in real time the distance between the door body and the box body detected by the distance sensor;

[0074] S13, calculating the current closing speed of the door body according to the change of the distance;

[0075] S14. When the current closing speed is greater than a preset speed threshold, the fan is controlled to operate at a preset speed value to supply air to the interior of the box until the door is closed.

[0076] In the embodiment of the present invention, the controller 15 detects the open state and the closed state of the door body 12 in real time. Figure 6 , is a third structural diagram of a refrigerator in an embodiment of the present invention. In the embodiment of the present invention, the refrigerator 10 further includes a door switch sensor 16, which is used to detect the state of the door 12 and output a corresponding state signal. The controller 15 is also connected to the door switch sensor 16, and determines the state of the door 12 by receiving the state signal sent by the door switch sensor 16 in real time.

[0077] When the controller 15 detects that the door body 12 changes from an open state to a closed state, the controller 15 obtains the distance L between the door body 12 and the box body 11 detected by the distance sensor 13 in real time, and calculates the closing speed V of the door body 12 according to the time change and the detected door body distance change. According to the proportional relationship between the closing speed V and the force exerted on the door body when it is closed, the user's door closing force can be identified.

[0078] In the embodiment of the present invention, a speed threshold V is preset. s to characterize the magnitude of the user's closing force. s When the closing speed V≤V s It indicates that the force the door body bears when closing is small or normal, that is, the user's door closing force is normal, the vibration amplitude of the door body at the moment of closing is small, and the noise emitted is small.

[0079] It should be noted that when the closing speed of the door is too fast, it means that the user closes the door with great force, and the vibration generated is also large, which will have an adverse effect on the storage environment of food in the refrigerator.

[0080] Therefore, after the controller 15 calculates the current closing speed V of the door body 12, when it determines that V>V s, a corresponding control instruction is sent to the fan 14 to control the operating state of the fan 14, so that the fan 14 runs at a preset speed value, thereby blowing air into the box 11, so that the gas inside the box 11 can be instantly increased. Until the door 12 is completely closed, the fan 14 is controlled to restore the original operating state. When it is determined that V≤V s When the controller 15 does not process the operating status of the fan 14.

[0081] Preferably, the preset speed value is a preset maximum operating speed of the fan.

[0082] Specifically, when it is detected that the current closing speed of the door body 12 is V>V s When the door 12 is closed, the controller 15 determines the current operating status of the fan 174. If the fan 14 has not started running, the controller 15 controls the fan 14 to start running and rotate according to the preset maximum speed value. If the fan 14 is running, the current speed value of the fan 14 is adjusted, and the fan 14 is controlled to rotate according to the preset maximum speed value until the door body 12 is completely closed, and then the fan 14 is controlled to restore its original state.

[0083] By adopting the technical means of the embodiment of the present invention, a distance sensor is set to detect the distance between the door body and the refrigerator box body, so that during the closing process of the refrigerator door body, the current closing speed of the door body is calculated according to the change of the distance between the door body and the refrigerator box body. When it is detected that the current closing speed of the door body is large, it is considered that the user's closing force is large, and the door body will generate a large vibration amplitude and noise at the moment of closing. By controlling the fan to run at a high speed before the door body is closed, the air volume is instantly increased, so that the inside of the box body can instantly increase the gas, so that at the moment of closing the door body, due to the high gas content in the box body, a certain air buffer is generated for the door body, reducing the vibration amplitude of the door body when closing the door, effectively reducing the noise at the moment of closing the door body, and reducing the impact of the closing vibration on the food storage environment in the refrigerator, improving the storage quality of the food, and improving the user's experience. In addition, the present invention can reuse the existing human body sensing sensor on the refrigerator as the distance sensor, realize the recognition of the door closing speed without the need to add an additional distance sensor, improve the utilization rate of the original sensor of the refrigerator, and reduce the production cost of the refrigerator.

[0084] As a preferred embodiment, see Figure 7 , is a fourth structural diagram of a refrigerator in an embodiment of the present invention. The embodiment of the present invention is further implemented on the basis of any of the above embodiments, and the refrigerator also includes: a sound player 17, which is arranged on the box body 11 and is used to play preset sound information.

[0085] Specifically, the sound player 17 is disposed on the box body 11 , and the sound player 17 is used to start running and play preset sound information according to relevant control instructions.

[0086] Optionally, the preset sound information may be a preset music signal, or a preset voice prompt tone, etc., which is not specifically limited here.

[0087] Optionally, the sound player 17 can be configured as a buzzer or a speaker, or other forms of sound players, which will not affect the beneficial effects of the present invention.

[0088] Then, see Figure 8 , is a schematic diagram of a second working process of a controller of a refrigerator in an embodiment of the present invention,

[0089] The controller is also used to execute step S14:

[0090] S14. When the current closing speed is greater than a preset speed threshold, control the sound player to play preset sound information until the door is closed.

[0091] It should be noted that the refrigerator door will produce a certain amount of noise at the moment of closing. When the door closes too quickly, it means that the user closes the door with great force, and the noise generated is also great, which will cause a bad user experience.

[0092] Therefore, in the embodiment of the present invention, after the controller 15 calculates the current closing speed V of the door body 12, when it is determined that V>V s , a corresponding control instruction is sent to the sound player 17 to control the sound player 17 to start running and play the preset sound information until the door body 12 is completely closed, and then the sound player 17 is controlled to stop running. s When the controller 15 does not control the sound player 17.

[0093] By adopting the technical means of the embodiment of the present invention, a sound player is set on the refrigerator. When the door closing speed is high, the sound player is controlled to play preset sound information to cover the noise generated at the moment the door closes, thereby reducing the impact on the user and effectively improving the user experience.

[0094] As a preferred embodiment, see Fig. 9 , is a third working flow diagram of the controller of the refrigerator in the embodiment of the present invention. The embodiment of the present invention is further implemented on the basis of the above embodiment. Step S14, that is, when the closing speed is greater than the preset speed threshold, the sound player is controlled to play the preset sound information until the door is closed, specifically including steps S141 to S142:

[0095] S141, when the current closing speed is greater than a preset speed threshold, according to a preset correspondence between the closing speed and the playing volume, obtaining the playing volume corresponding to the current closing speed of the door body as the target playing volume;

[0096] S142, controlling the sound player to start, and playing the preset sound information at the target playing volume until the door is closed.

[0097] In an embodiment of the present invention, different door closing speeds represent different door closing forces, and different door closing forces represent different degrees of noise generated at the moment the door closes, that is, they represent the need for sound information of different volumes to cover. Therefore, a correspondence between the closing speed and the playback volume is constructed and stored in advance through simulation and testing. In the correspondence, the closing speed and the playback volume are positively correlated, that is, the greater the closing speed, the greater the playback volume; the smaller the closing speed, the smaller the playback volume.

[0098] During the application process, the controller 15 determines that the current closing speed of the door body 12 is V>V s When the door is closed, the corresponding relationship between the closing speed and the playing volume is called, and the playing volume corresponding to the current closing speed V is found and obtained as the target playing volume. Then, the sound player 17 is controlled to start and play the preset sound information at the target playing volume until the door is closed.

[0099] By adopting the technical means of the embodiment of the present invention, when the door closing speed is too fast, different volume levels are used to play sound information according to the closing speed, thereby effectively covering the noise generated at the moment of door closing and improving the user experience.

[0100] Preferably, the embodiment of the present invention optimizes the setting method of the preset sound information.

[0101] In one implementation, the preset sound information is set in the following manner:

[0102] According to a preset correspondence between a refrigerator model and a noise amplitude, determining a noise amplitude generated when the refrigerator door is closed as a target noise amplitude;

[0103] Determine the reverse waveform music corresponding to the target noise amplitude and generate the preset sound information.

[0104] In the embodiment of the present invention, the noise amplitude generated by the refrigerator door at the moment of closing is related to the structure of the refrigerator. The embodiment of the present invention tests the noise amplitude generated by refrigerators of different models at the moment of closing the door by conducting door closing tests on refrigerators of different models, thereby constructing the corresponding relationship between the preset refrigerator model and the noise amplitude.

[0105] During the application process, the corresponding target noise amplitude is determined according to the model of the refrigerator and the corresponding relationship between the preset refrigerator model and the noise amplitude, and music with reverse waveform amplitude is constructed according to the target noise amplitude to generate the preset sound information.

[0106] By adopting the technical means of the embodiment of the present invention, the waveform of the preset sound information is opposite to the amplitude of the noise generated when the refrigerator door is closed, thereby effectively covering the door closing noise and improving the user experience.

[0107] In another embodiment, the preset sound information is set in the following manner:

[0108] Receiving a sound information setting instruction input by a user; wherein the sound information setting instruction includes the sound information set by the user;

[0109] The preset sound information is generated according to the sound information setting instruction.

[0110] In the embodiment of the present invention, the preset sound information can be obtained by user customization, and the user can set the corresponding music ringtone as the preset sound information according to his / her own preferences. The user can input the sound information setting instruction through the human-computer interaction module of the refrigerator, thereby inputting the music ringtone preferred by the user into the refrigerator, so as to generate the preset sound information.

[0111] By adopting the technical means of the embodiments of the present invention and setting the sound information according to the user's preference requirements, on the one hand, the function of reducing the door closing noise can be achieved, and on the other hand, the user's preference can be catered to and the user's usage experience can be improved.

[0112] The embodiment of the present invention further provides an operation control method of a refrigerator, which is applied to a refrigerator, and the refrigerator comprises:

[0113] Box;

[0114] A door body, arranged at the opening of the box body, for realizing opening or closing of the box body;

[0115] A distance sensor is provided on the box body and is used to detect the distance between the door body and the box body;

[0116] A fan, disposed in the box, for supplying air to the inside of the box;

[0117] See Fig.10 , is a flow chart of a refrigerator operation control method provided by an embodiment of the present invention, the method comprising steps S21 to S23:

[0118] S21, during the closing process of the door body, obtaining in real time the distance between the door body and the box body detected by the distance sensor;

[0119] S22, calculating the current closing speed of the door body according to the change of the distance;

[0120] S23. When the current closing speed is greater than a preset speed threshold, the fan is controlled to operate at a preset speed value to supply air to the interior of the box until the door is closed.

[0121] Preferably, the preset speed value is a preset maximum operating speed of the fan.

[0122] By adopting the technical means of the embodiment of the present invention, a distance sensor is set to detect the distance between the door body and the refrigerator box body, so that during the closing process of the refrigerator door body, the current closing speed of the door body is calculated according to the change of the distance between the door body and the refrigerator box body. When it is detected that the current closing speed of the door body is large, it is considered that the user's closing force is large, and the door body will generate a large vibration amplitude and noise at the moment of closing. By controlling the fan to run at a high speed before the door body is closed, the air volume is instantly increased, so that the inside of the box body can instantly increase the gas, so that at the moment of closing the door body, due to the high gas content in the box body, a certain air buffer is generated for the door body, reducing the vibration amplitude of the door body when closing the door, effectively reducing the noise at the moment of closing the door body, and reducing the impact of the closing vibration on the food storage environment in the refrigerator, improving the storage quality of the food, and improving the user's experience. In addition, the present invention can reuse the existing human body sensing sensor on the refrigerator as the distance sensor, realize the recognition of the door closing speed without the need to add an additional distance sensor, improve the utilization rate of the original sensor of the refrigerator, and reduce the production cost of the refrigerator.

[0123] As a preferred embodiment, the refrigerator further includes:

[0124] A sound player, arranged on the box, for playing preset sound information;

[0125] Then after step S22, the method further comprises step S24:

[0126] S24. When the current closing speed is greater than a preset speed threshold, control the sound player to play preset sound information until the door is closed.

[0127] By adopting the technical means of the embodiment of the present invention, a sound player is set on the refrigerator. When the door closing speed is high, the sound player is controlled to play preset sound information to cover the noise generated at the moment the door closes, thereby reducing the impact on the user and effectively improving the user experience.

[0128] As a preferred embodiment, when the closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed, comprising:

[0129] When the current closing speed is greater than a preset speed threshold, according to a preset correspondence between the closing speed and the playing volume, the playing volume corresponding to the current closing speed of the door body is obtained as the target playing volume;

[0130] The sound player is controlled to start, and the preset sound information is played according to the target playing volume until the door is closed.

[0131] As an optional implementation manner, the preset sound information is set in the following manner:

[0132] According to a preset correspondence between a refrigerator model and a noise amplitude, determining a noise amplitude generated when the refrigerator door is closed as a target noise amplitude;

[0133] Determine the reverse waveform music corresponding to the target noise amplitude and generate the preset sound information.

[0134] As another optional implementation, the preset sound information is set in the following manner:

[0135] Receiving a sound information setting instruction input by a user; wherein the sound information setting instruction includes the sound information set by the user;

[0136] The preset sound information is generated according to the sound information setting instruction.

[0137] It should be noted that the operation control method of a refrigerator provided in an embodiment of the present invention is identical to all process steps executed by a controller of a refrigerator in the above embodiment, and the working principles and beneficial effects of the two correspond one to one, so they will not be described in detail.

[0138] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0139] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: Box; A door body, arranged at the opening of the box body, for realizing opening or closing of the box body; A distance sensor is provided on the box body and is used to detect the distance between the door body and the box body; A fan, disposed in the box, for supplying air to the inside of the box; Controller for: During the closing process of the door body, the distance between the door body and the box body detected by the distance sensor is acquired in real time; Calculating the current closing speed of the door body according to the change of the distance; When the current closing speed is greater than a preset speed threshold, the fan is controlled to operate at a preset speed value to supply air to the interior of the box until the door is closed.

2. The refrigerator according to claim 1, characterized in that: The preset speed value is the preset maximum operating speed of the fan.

3. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises: A sound player, arranged on the box, for playing preset sound information; The controller is also used for: When the current closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed.

4. The refrigerator according to claim 3, characterized in that: When the closing speed is greater than a preset speed threshold, controlling the sound player to play preset sound information until the door body is closed, comprises: When the current closing speed is greater than a preset speed threshold, according to a preset correspondence between the closing speed and the playing volume, the playing volume corresponding to the current closing speed of the door body is obtained as the target playing volume; The sound player is controlled to start, and the preset sound information is played according to the target playing volume until the door is closed.

5. The refrigerator according to claim 3 or 4, characterized in that: The preset sound information is set in the following way: According to a preset correspondence between a refrigerator model and a noise amplitude, determining a noise amplitude generated when the refrigerator door is closed as a target noise amplitude; Determine the reverse waveform music corresponding to the target noise amplitude and generate the preset sound information.

6. The refrigerator according to claim 3 or 4, characterized in that: The preset sound information is set in the following way: Receiving a sound information setting instruction input by a user; wherein the sound information setting instruction includes the sound information set by the user; The preset sound information is generated according to the sound information setting instruction.

7. The refrigerator according to claim 1, characterized in that: The distance sensor is a radar sensor.

8. A refrigerator operation control method, characterized in that: The refrigerator comprises: Box; A door body, arranged at the opening of the box body, for realizing opening or closing of the box body; A distance sensor is provided on the box body and is used to detect the distance between the door body and the box body; A fan, disposed in the box, for supplying air to the inside of the box; The method comprises: During the closing process of the door body, the distance between the door body and the box body detected by the distance sensor is acquired in real time; Calculating the current closing speed of the door body according to the change of the distance; When the current closing speed is greater than a preset speed threshold, the fan is controlled to operate at a preset speed value to supply air to the interior of the box until the door is closed.

9. The refrigerator operation control method according to claim 8, characterized in that: The refrigerator further comprises: A sound player, arranged in the box, for playing preset sound information; The controller is also used for: When the current closing speed is greater than a preset speed threshold, the sound player is controlled to play preset sound information until the door body is closed.

10. The refrigerator operation control method according to claim 9, characterized in that: When the closing speed is greater than a preset speed threshold, controlling the sound player to play preset sound information until the door body is closed, comprises: When the current closing speed is greater than a preset speed threshold, according to a preset correspondence between the closing speed and the playing volume, the playing volume corresponding to the current closing speed of the door body is obtained as the target playing volume; The sound player is controlled to start, and the preset sound information is played according to the target playing volume until the door is closed.

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