Refrigerator and light brightness adjusting method thereof

Abstract

According to the refrigerator and the lamplight brightness adjusting method thereof, in the food material taking process of a user, when it is detected that the user takes food materials on a top shelf, the lamplight brightness of the top of the refrigerator is adjusted, the height of the user is estimated through microwave human sensing of the refrigerator, and the lamplight brightness at the position the same as the height when the user opens the refrigerator is adjusted according to the height of the user; the stimulation of lamplight to user eyes in the refrigerator using process of a user is reduced, and the user experience is improved. By adopting the embodiment of the invention, the light brightness of the side lamp and the top of the refrigerator can be dynamically adjusted according to the food material taking operation of the user, and the stimulation of the light of the refrigerator to eyes is reduced.

Description

Technical Field

[0001] The invention relates to refrigerator control technology, and in particular to a refrigerator and a method for adjusting the brightness of its light. Background Art

[0002] A lighting lamp is installed inside the refrigerator. The light is on when the refrigerator door is open and off when the refrigerator door is closed. When the user uses the refrigerator, it is inevitable that the user will look directly into the light inside the refrigerator when taking food. In addition, due to the light installed in the refrigerator, in order to increase the brightness inside the box, the light is usually operated at a higher brightness. When the human eye looks directly at the light, it will irritate the eyes, thus affecting the user experience and eye health. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a refrigerator and a method for adjusting the brightness of the light thereof, which can dynamically adjust the brightness of the side lights and top lights of the refrigerator according to the height of the human body and the operation of the user to take food, thereby reducing the stimulation of the refrigerator light to the eyes.

[0004] To achieve the above object, an embodiment of the present invention provides a refrigerator, comprising:

[0005] A box body, wherein at least one storage room is formed in the box body, and at least one ceiling light is installed on the top of the storage room;

[0006] A door, used for opening and closing the storage room;

[0007] A first detection device is provided in the storage chamber near the top of the refrigerator, and is used to detect whether there is an object close to the first detection device;

[0008] A door opening and closing sensor is provided at the box door and is used to detect the opening and closing status of the box door;

[0009] The controller is configured as:

[0010] When the door opening and closing sensor detects that the door corresponding to any storage room is opened, the detection data transmitted by the first detection device is acquired;

[0011] When the detection data indicates that an object is detected approaching the first detection device, reducing the brightness of the ceiling light in the current storage room;

[0012] When the detection data indicates that no object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is kept unchanged.

[0013] As an improvement of the above solution, the first detection device is a temperature sensor or an infrared sensor.

[0014] As an improvement of the above solution, at least one side light is installed on the side wall in the storage chamber, and the refrigerator further comprises:

[0015] A second detection device, disposed on the door, for detecting the height of a user within a preset range of the refrigerator;

[0016] Then, the controller is further configured to:

[0017] Acquire the user height detected by the second detection device;

[0018] Determine whether there is a target side light in the storage room of the refrigerator that is within a preset height difference range from the user's height;

[0019] If there is a target side light, and the door opening and closing sensor detects that the door of the storage room where the target side light is located is opened, the brightness of the target side light is reduced.

[0020] As an improvement of the above solution, the controller is further configured as follows:

[0021] When the second detection device detects that there are at least two users within the preset range, the height of the user closest to the refrigerator is obtained.

[0022] As an improvement of the above solution, the second detection device is a microwave human sensing sensor.

[0023] To achieve the above object, an embodiment of the present invention further provides a method for adjusting the brightness of a refrigerator light. At least one ceiling light is installed on the top of a storage compartment of the refrigerator. A first detection device is provided at a position near the top of the storage compartment. The first detection device is used to detect whether an object is approaching. A door opening and closing sensor is provided at the door of the refrigerator for detecting the opening and closing status of the door. Then, the method for adjusting the brightness of a refrigerator light includes:

[0024] When the door opening and closing sensor detects that the door corresponding to any storage room is opened, the detection data transmitted by the first detection device is acquired;

[0025] When the detection data indicates that an object is detected approaching the first detection device, reducing the brightness of the ceiling light in the current storage room;

[0026] When the detection data indicates that no object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is kept unchanged.

[0027] As an improvement of the above solution, the first detection device is a temperature sensor or an infrared sensor.

[0028] As an improvement of the above solution, at least one side light is installed on the side wall of the storage chamber, and the refrigerator further includes a second detection device provided on the door, and the second detection device is used to detect the height of a user within a preset range of the refrigerator; then, the method further includes:

[0029] Acquire the user height detected by the second detection device;

[0030] Determine whether there is a target side light in the storage room of the refrigerator that is within a preset height difference range from the user's height;

[0031] If there is a target side light, and the door opening and closing sensor detects that the door of the storage room where the target side light is located is opened, the brightness of the target side light is reduced.

[0032] As an improvement of the above solution, the method further includes:

[0033] When the second detection device detects that there are at least two users within the preset range, the height of the user closest to the refrigerator is obtained.

[0034] As an improvement of the above solution, the second detection device is a microwave human sensing sensor.

[0035] Compared with the prior art, the refrigerator and the method for adjusting the light brightness thereof disclosed in the present invention can adjust the light brightness on the top of the refrigerator when it is detected that the user is taking food from the top shelf during the process of taking food, thereby reducing the stimulation of the light on the user's eyes during the user's use of the refrigerator and improving the user experience. In addition, the user's height is estimated by the refrigerator microwave sensor, and the light brightness at the same height position when the refrigerator is opened is adjusted according to the user's height. By adopting the embodiment of the present invention, the brightness of the side lights and the top lights of the refrigerator can be dynamically adjusted according to the user's operation of taking food, thereby reducing the stimulation of the refrigerator light on the eyes. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the external structure of a refrigerator provided by an embodiment of the present invention;

[0037] Figure 2 is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention;

[0038] Figure 3 is a schematic structural diagram of a refrigeration system in a refrigerator provided by an embodiment of the present invention;

[0039] Figure 4 is a schematic diagram of the internal structure of another refrigerator provided by an embodiment of the present invention;

[0040] Figure 5 is a schematic diagram of microwave human induction detection provided by an embodiment of the present invention;

[0041] Figure 6 is a schematic diagram of the connection between the controller and other hardware devices provided by an embodiment of the present invention;

[0042] Figure 7 is a first working flow diagram of a controller provided by an embodiment of the present invention;

[0043] Figure 8 is a second working flow diagram of the controller provided by an embodiment of the present invention;

[0044] Fig. 9 is a third working flow diagram of the controller provided in an embodiment of the present invention;

[0045] Fig.10 The present invention provides a flowchart of a method for adjusting the brightness of refrigerator lights.

[0046] Among them, 100, refrigerator; 1, compressor; 2, evaporator; 3, capillary; 4, condenser; 101, first detection device; 102, second detection device; 103, shelf; 104, ceiling light; 105, side light. DETAILED DESCRIPTION

[0047] 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.

[0048] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] The terms "first", "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] See also Figure 1 , Figure 1 1 is a schematic diagram of the external structure of a refrigerator 100 provided in an embodiment of the present invention. The refrigerator 100 of this embodiment is approximately rectangular in shape. The refrigerator includes a box body defining a storage space and a plurality of door bodies arranged at the opening of the box body, wherein the door body includes a door body shell located outside the box body, a door body liner located inside the box body, an upper end cover, a lower end cover, and an insulation layer located between the door body shell, the door body liner, the upper end cover, and the lower end cover; usually, the insulation layer is filled with foam. The box body is provided with a chamber, wherein the chamber includes a component storage chamber for placing components in the refrigerator, such as a press cabin, etc., and also includes a storage space for storing food, etc.

[0052] See also Figure 2 , Figure 2 : is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention. The storage space can be divided into multiple storage rooms. The storage rooms can be configured as refrigerators and freezers according to different uses. They can also include variable temperature rooms, vacuum drawers, moisturizing drawers, etc. Each storage room corresponds to one or more door bodies, for example, Figure 1 The upper storage room is provided with a double-opening door body. The door body can be pivotally arranged at the opening of the box body, and can also be opened in a drawer-like manner to achieve drawer-like storage. The refrigerator door is provided with a display screen, which is used to display prompt information and receive user touch operations.

[0053] See also Figure 3 , Figure 3The schematic diagram of the structure of the refrigeration system in the refrigerator provided by the embodiment of the present invention, the refrigeration system includes a compressor 1, an evaporator 2, a drying filter (not shown in the figure), a capillary tube 3, a condenser 4 and a gas-liquid separator (not shown in the figure). The working process of the refrigeration system includes a compression process, a condensation process, a throttling process and an evaporation process. The compression process is: plug in the power cord of the refrigerator, when the contacts of the thermostat are connected, the compressor 1 starts to work, and the low-temperature and low-pressure refrigerant is sucked into the compressor 1, and is compressed into a high-temperature and high-pressure superheated gas in the cylinder of the compressor 1 and then discharged into the condenser 4; the condensation process is: the high-temperature and high-pressure refrigerant gas dissipates heat through the condenser 4, the temperature continues to drop, and is gradually cooled to a saturated vapor of normal temperature and high pressure, and is further cooled to a saturated liquid, and the temperature no longer drops. The temperature at this time is called the condensation temperature, and the pressure of the refrigerant remains almost unchanged during the entire condensation process; the throttling process is as follows ... The process is as follows: the condensed refrigerant saturated liquid is filtered through a drying filter to remove moisture and impurities and then flows into the capillary 3, through which it is throttled and depressurized, and the refrigerant becomes wet steam at room temperature and low pressure; the evaporation process is as follows: the wet steam at room temperature and low pressure begins to absorb heat and vaporize in the evaporator 2, which not only reduces the temperature of the evaporator 2 and its surroundings, but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant coming out of the evaporator 2 passes through the gas-liquid separator and returns to the compressor 1 again, repeating the above process to transfer the heat in the refrigerator to the air outside the box, thereby achieving the purpose of refrigeration.

[0054] See also Figure 4 , Figure 4 It is a schematic diagram of the internal structure of another refrigerator provided in an embodiment of the present invention, and takes the refrigerator compartment as an example for explanation. The interior of the refrigerator compartment is provided with a first detection device 101, a shelf 103, a ceiling light 104 and a side light 105.

[0055] The first detection device 101 is a temperature sensor or an infrared sensor. The first detection device 101 is arranged at a position near the top of the refrigerator in the storage room, and is used to detect whether there is an object approaching the first detection device 101. When the first detection device 101 is a temperature sensor, when a person's hand reaches the top shelf 103 and approaches the first detection device 101, the local temperature will rise. At this time, the temperature sensor can be used to determine that the user is taking food from the top shelf. At this time, the detection data of the first detection device 101 is that an object is detected to be close to the first detection device 10, otherwise the detection data of the first detection device 101 is that no object is detected to be close to the first detection device 10. When the first detection device is an infrared sensor, when a person's hand reaches the top shelf 103 and approaches the first detection device 101, the infrared rays emitted by the infrared sensor are blocked. At this time, it can be determined that the user is taking food from the top shelf. At this time, the detection data of the first detection device 101 is that an object is detected to be close to the first detection device 10, otherwise the detection data of the first detection device 101 is that no object is detected to be close to the first detection device 10.

[0056] There is at least one shelf 103 in the refrigerator, and the shelf 103 is used to place items. There should be a set distance between two adjacent shelves. The inside of the refrigerator storage compartment may be provided with a clamping portion for placing the shelf 103, and the shelf 103 can be placed at different heights in the storage compartment according to the position of the clamping portion.

[0057] The ceiling light 104 is installed on the top of the refrigerator. At least one ceiling light 104 is provided on the top of the refrigerator. The number and position of the ceiling lights 104 can be preset before leaving the factory according to the size of the refrigerator, and are not specifically limited here. The default brightness of the ceiling light 104 can be adjusted by the user or adjusted by default before leaving the factory, and are not specifically limited here.

[0058] The side lights 105 are installed on the side walls of the storage room. At least one side light 105 is installed on the side walls of the storage room. The number and position of the side lights 105 can be pre-set before leaving the factory according to the size of the refrigerator, and are not specifically limited here. Some refrigerators install side lights on the bottom shelf, and some install side lights on the middle or top shelf. The default brightness of the side lights 105 can be adjusted by the user or adjusted by default before leaving the factory, and are not specifically limited here.

[0059] Furthermore, the refrigerator is also provided with a second detection device 102, which is provided on the door and is used to detect the height of a user within a preset range of the refrigerator. For example, the second detection device 102 is a microwave human sensor, and the preset range is 2m. The sensing range of the microwave human sensor is a sector-shaped sphere centered on the human sensor, as shown in the side view. Figure 5 As shown in the figure, when different users A and B move from far away from the refrigerator to close to the refrigerator, the energy and waveform fed back to the microwave human sensing antenna are different. Based on these differences and combined with the test data, the range of human height can be roughly estimated, so that the user's height is judged to be H.

[0060] See also Figure 6 , Figure 6 It is a connection diagram of the controller provided in an embodiment of the present invention and the remaining hardware devices. The controller described in the embodiment of the present invention is respectively connected to the first detection device 101, the second detection device 102, the ceiling light 104 and the side light 105. The controller can control the start and stop of the first detection device 101 and the second detection device 102. The controller can also control the start and stop of the ceiling light 104 and the side light 105, and adjust the brightness of the ceiling light 104 and the side light 105.

[0061] Specifically, the controller described in the embodiment of the present invention is configured as follows: when the door opening and closing sensor detects that the door corresponding to any storage room is opened, the detection data transmitted by the first detection device is obtained; when the detection data shows that an object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is reduced; when the detection data shows that no object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is kept unchanged.

[0062] For example, see Figure 7 , Figure 7 It is the first working flow diagram of the controller provided by the embodiment of the present invention, and the controller is configured to execute steps S11 to S15. After the refrigerator door is opened, when the user wants to take food from the top shelf, when the hand reaches the top shelf, when approaching the first detection device, the local temperature will rise (or the infrared rays will be blocked). At this time, it can be determined that the user wants to take the food from the top shelf of the refrigerator, and the user's sight will also look up with the gesture. The user's eyes will see the refrigerator ceiling light, so the brightness of the refrigerator top light is reduced (it does not affect the light intensity of finding food, the default light brightness is L, then the adjusted brightness is the original 0.7L, and the light brightness changes gradually during the process) to prevent the light from irritating the eyes when the user looks up. Further, after reducing the brightness of the ceiling light, until the detection data of the first detection device is that no object is detected approaching the first detection device, after a period of time (such as 5s, in case the user checks the storage status of the top shelf of the refrigerator after taking the food), the default light brightness L is restored, or when the refrigerator door is detected to be closed, the ceiling light is turned off.

[0063] Specifically, the controller described in the embodiment of the present invention is also configured to: obtain the user height detected by the second detection device; determine whether there is a target side light in the storage room of the refrigerator that is within a preset height difference range with the user height; if there is a target side light, and the door opening and closing sensor detects that the door of the storage room where the target side light is located is opened, reduce the brightness of the target side light.

[0064] For example, see Figure 8 , Figure 8 It is the second working flow chart of the controller provided by an embodiment of the present invention, and the controller is also configured to execute steps S21 to S25. When the second detection device detects a user within its detection range, the user height H is obtained, and then it is detected whether there is a side light at a position within the height difference range with the user's height H (different refrigerator models and functions are different. According to the functional characteristics, some refrigerators install side lights on the bottom shelf, and some install side lights in the middle or top shelf), and the height difference is 10cm. If there is no side light, no processing is performed. If there is a side light, when the user opens the refrigerator door, the brightness of the side light within the height difference range is reduced (for example, if the default light brightness is L, it is reduced to 0.7L, and the light brightness changes gradually during the process), so as to reduce the impact of the side light at this position on the human eye during the door opening process, and the other side lights maintain the default light brightness. Furthermore, after reducing the brightness of the side light, the side light is turned off until it is detected that the refrigerator door is closed.

[0065] Specifically, the controller is further configured to: when the second detection device detects that there are at least two users within the preset range, obtain the height of the user closest to the refrigerator.

[0066] For example, see Fig. 9 , Fig. 9 is a third working flow chart of the controller provided by an embodiment of the present invention. After executing step S21, the controller is further used to execute steps S211 to S213. After executing steps S211 to S213, the controller continues to execute step S22. When the second detection device detects at least two user heights, it means that there are at least two users within the detection range of the second detection device. At this time, the user height of the user closest to the refrigerator shall prevail.

[0067] Compared with the prior art, the refrigerator disclosed in the present invention can adjust the brightness of the light on the top of the refrigerator when it is detected that the user is taking food from the top shelf during the process of taking food, thereby reducing the stimulation of the light on the user's eyes during the use of the refrigerator and improving the user experience. In addition, the user's height is estimated through the refrigerator microwave sensor, and the brightness of the light at the same height position when the refrigerator is opened is adjusted according to the user's height. By adopting the embodiment of the present invention, the brightness of the side lights and the top lights of the refrigerator can be dynamically adjusted according to the user's operation of taking food, thereby reducing the stimulation of the refrigerator light on the eyes.

[0068] See also Fig.10 , Fig.10 The present invention provides a flowchart of a method for adjusting the light brightness of a refrigerator provided by an embodiment of the present invention. The method for adjusting the light brightness of a refrigerator provided by an embodiment of the present invention is implemented by a controller in a refrigerator. At least one ceiling light is installed on the top of a storage compartment of the refrigerator. A first detection device is provided at a position near the top of the refrigerator in the storage compartment. The first detection device is used to detect whether an object is approaching. A door opening and closing sensor is provided at the door of the refrigerator for detecting the opening and closing status of the door. Then, the method for adjusting the light brightness of a refrigerator includes:

[0069] S1. When the door opening and closing sensor detects that the door corresponding to any storage room is opened, acquiring detection data transmitted by the first detection device;

[0070] S2. When the detection data indicates that an object is approaching the first detection device, reducing the brightness of the ceiling light in the current storage room;

[0071] S3. When the detection data indicates that no object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is kept unchanged.

[0072] Specifically, the first detection device is a temperature sensor or an infrared sensor.

[0073] For example, after the refrigerator door is opened, when the user wants to take food from the top shelf, when the hand reaches the top shelf, the local temperature will rise (or the infrared rays will be blocked) when approaching the first detection device. At this time, it can be determined that the user wants to take food from the top shelf of the refrigerator. The user's line of sight will also look up with the gesture, and the user's eyes will see the refrigerator ceiling light, so the brightness of the refrigerator top light is reduced (it does not affect the light intensity for searching for food, the default light brightness is L, then the adjusted brightness is the original 0.7L, and the light brightness changes gradually during the process) to prevent the light from irritating the user's eyes when looking up. Further, after reducing the brightness of the ceiling light, until the detection data of the first detection device shows that no object is detected approaching the first detection device, after a period of time (such as 5s, in case the user checks the storage status of the top shelf of the refrigerator after taking the food), the default light brightness L is restored, or when the refrigerator door is detected to be closed, the ceiling light is turned off.

[0074] Specifically, at least one side light is installed on the side wall in the storage room, and the refrigerator also includes a second detection device provided on the door, and the second detection device is used to detect the height of a user within a preset range of the refrigerator; then, the method also includes: obtaining the user height detected by the second detection device; determining whether there is a target side light in the storage room of the refrigerator that is within a preset height difference range with the user height; if there is a target side light, and the door opening and closing sensor detects that the door of the storage room where the target side light is located is opened, reducing the brightness of the target side light.

[0075] Specifically, the second detection device is a microwave human detection sensor.

[0076] Exemplarily, when the second detection device detects a user within its detection range, the user's height H is obtained. At this time, it is detected whether there is a side light at a position within the height difference range with the user's height H (different refrigerator models and functions have differences. According to functional characteristics, some refrigerators install side lights on the bottom shelf, and some install side lights on the middle or top shelf). The height difference is 10cm. If there is no side light, no processing is done. If there is a side light, when the user opens the refrigerator door, the brightness of the side light within the height difference range is reduced (for example, if the default light brightness is L, it is reduced to 0.7L, and the light brightness changes gradually during the process), so as to reduce the impact of the side light at this position on the human eye during the door opening process, and the other side lights maintain the default light brightness. Furthermore, after reducing the brightness of the side light, the side light is turned off until it is detected that the refrigerator door is closed.

[0077] Specifically, the method further includes: when the second detection device detects that there are at least two users within the preset range, acquiring the height of the user closest to the refrigerator.

[0078] Exemplarily, when the second detection device detects at least two user heights, it means that there are at least two users within the detection range of the second detection device. At this time, the user height of the user closest to the refrigerator is used as the basis.

[0079] Compared with the prior art, the method for adjusting the light brightness of a refrigerator disclosed in the present invention adjusts the light brightness of the top of the refrigerator when it is detected that the user is taking food from the top shelf during the process of taking food, thereby reducing the stimulation of the light on the user's eyes during the user's use of the refrigerator and improving the user experience. In addition, the user's height is estimated by the refrigerator microwave sensor, and the light brightness at the same height position when the refrigerator is opened is adjusted according to the user's height. By adopting the embodiment of the present invention, the brightness of the side lights and the top lights of the refrigerator can be dynamically adjusted according to the user's operation of taking food, thereby reducing the stimulation of the refrigerator light on the eyes.

[0080] 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: A box body, wherein at least one storage room is formed in the box body, and at least one ceiling light is installed on the top of the storage room; A door, used for opening and closing the storage room; A first detection device is provided in the storage chamber near the top of the refrigerator, and is used to detect whether there is an object close to the first detection device; A door opening and closing sensor is provided at the box door and is used to detect the opening and closing status of the box door; The controller is configured as: When the door opening and closing sensor detects that the door corresponding to any storage room is opened, the detection data transmitted by the first detection device is acquired; When the detection data indicates that an object is detected approaching the first detection device, reducing the brightness of the ceiling light in the current storage room; When the detection data indicates that no object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is kept unchanged.

2. The refrigerator according to claim 1, characterized in that: The first detection device is a temperature sensor or an infrared sensor.

3. The refrigerator according to claim 1, characterized in that: At least one side light is installed on the side wall of the storage chamber, and the refrigerator further comprises: A second detection device, disposed on the door, for detecting the height of a user within a preset range of the refrigerator; Then, the controller is further configured to: Acquire the user height detected by the second detection device; Determine whether there is a target side light in the storage room of the refrigerator that is within a preset height difference range from the user's height; If there is a target side light, and the door opening and closing sensor detects that the door of the storage room where the target side light is located is opened, the brightness of the target side light is reduced.

4. The refrigerator according to claim 3, characterized in that: The controller is also configured to: When the second detection device detects that there are at least two users within the preset range, the height of the user closest to the refrigerator is obtained.

5. The refrigerator according to claim 1, characterized in that: The second detection device is a microwave human sensing sensor.

6. A method for adjusting the light brightness of a refrigerator, characterized in that: At least one ceiling light is installed on the top of the storage room of the refrigerator, and a first detection device is provided at a position near the top of the refrigerator in the storage room, and the first detection device is used to detect whether an object is approaching; a door opening and closing sensor is provided at the door of the refrigerator for detecting the opening and closing status of the door; then, the method for adjusting the light brightness of the refrigerator includes: When the door opening and closing sensor detects that the door corresponding to any storage room is opened, the detection data transmitted by the first detection device is acquired; When the detection data indicates that an object is detected approaching the first detection device, reducing the brightness of the ceiling light in the current storage room; When the detection data indicates that no object is detected approaching the first detection device, the brightness of the ceiling light in the current storage room is kept unchanged.

7. The method for adjusting the light brightness of a refrigerator according to claim 6, characterized in that: The first detection device is a temperature sensor or an infrared sensor.

8. The method for adjusting the light brightness of a refrigerator according to claim 6, characterized in that: At least one side light is installed on the side wall of the storage chamber, and the refrigerator further includes a second detection device provided on the door, the second detection device being used to detect the height of a user within a preset range of the refrigerator; then, the method further includes: Acquire the user height detected by the second detection device; Determine whether there is a target side light in the storage room of the refrigerator that is within a preset height difference range from the user's height; If there is a target side light, and the door opening and closing sensor detects that the door of the storage room where the target side light is located is opened, the brightness of the target side light is reduced.

9. The method for adjusting the light brightness of a refrigerator according to claim 8, characterized in that: The method further comprises: When the second detection device detects that there are at least two users within the preset range, the height of the user closest to the refrigerator is obtained.

10. The method for adjusting the light brightness of a refrigerator according to claim 6, characterized in that: The second detection device is a microwave human sensing sensor.

Images