refrigerator

Abstract

This utility model discloses a refrigerator, relating to the field of air conditioning, for improving refrigerator performance. The refrigerator includes a cabinet, a door, and at least one first light strip assembly. The door is rotatably mounted on the cabinet. The first light strip assembly is installed on at least one side of the door; the brightness of the first light strip assembly is adjustable; a second light strip assembly is arranged on the door. When the door is open, the light from the first light strip assembly is directed towards the interior of the cabinet. By incorporating the first light strip assembly, this refrigerator significantly improves its lighting effect, enabling it to provide illumination for users even in dark environments, saving energy and reducing energy consumption; furthermore, it illuminates the interior of the refrigerator when the door is open, enhancing the lighting effect.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning, specifically to a refrigerator. Background Technology

[0002] With the rapid development of smart home technology, refrigerators, as an important component of home appliances, are constantly being optimized in terms of function and design. Traditional refrigerator ambient lighting is mainly used for decoration and aesthetic enhancement, typically located on the front of the refrigerator. However, this design fails to fully display the refrigerator's overall outline in dark environments and lacks functionality. To compensate for this deficiency, the design of adding light strips to the sides has emerged. This design not only continues the aesthetic function but also provides outline visibility in dark environments, further enhancing the refrigerator's practicality and user experience.

[0003] The inventors discovered that the existing technology has at least the following problems: the existing ambient light always-on mode leads to increased energy consumption, which is not conducive to energy conservation and environmental protection, and its function is limited. Utility Model Content

[0004] This utility model proposes a refrigerator to enrich its lighting function.

[0005] This utility model embodiment provides a refrigerator, including:

[0006] Box;

[0007] A door, rotatably mounted on the enclosure; and

[0008] At least one first light strip assembly is installed on at least one side of the cabinet door; the brightness of the first light strip assembly is adjustable; wherein, when the cabinet door is open, the illumination direction of the first light strip assembly is directed toward the interior of the cabinet.

[0009] In some embodiments, the first light strip assembly includes:

[0010] The first mounting section includes a first mounting slot;

[0011] The first light strip is installed inside the first mounting slot; and

[0012] The first light-diffusing strip is installed in the first mounting groove and covers the first light strip.

[0013] In some embodiments, the refrigerator further includes:

[0014] At least one second light strip assembly is disposed on the door; the brightness of the second light strip assembly is adjustable.

[0015] In some embodiments, the second light strip assembly includes:

[0016] The second mounting section includes a second mounting slot;

[0017] The second light strip is installed inside the second mounting slot; and

[0018] The second light-diffusing strip is installed in the second mounting groove and covers the second light strip.

[0019] In some embodiments, the refrigerator further includes:

[0020] The control circuit includes a controller electrically connected to the first LED strip assembly and / or the second LED strip assembly to control the brightness of the first LED strip assembly and / or the second LED strip assembly.

[0021] In some embodiments, the first light strip assembly includes a first mode, a second mode, and a third mode;

[0022] When the first light strip assembly is in the first mode, the first light strip assembly is illuminated; when the first light strip assembly is in the second mode, the first light strip assembly is illuminated, and the brightness is higher than the brightness of the first light strip assembly in the first mode; when the first light strip assembly is in the third mode, the first light strip assembly is turned off; and / or,

[0023] The second light strip assembly includes a fourth mode, a fifth mode, and a sixth mode;

[0024] When the second light strip assembly is in the fourth mode, the second light strip assembly is lit; when the second light strip assembly is in the fifth mode, the second light strip assembly is turned off; when the second light strip assembly is in the sixth mode, the second light strip assembly is lit, and the brightness is higher than the brightness of the second light strip assembly in the fourth mode.

[0025] In some embodiments, the control circuit further includes:

[0026] A sensor, installed on the door, is configured to be triggered when it detects that the distance between the user and the refrigerator is less than a set distance;

[0027] The controller is communicatively connected to the sensor to control the first light strip assembly to turn on in the first mode and / or the second light strip assembly to turn on in the fourth mode after the sensor is triggered.

[0028] In some embodiments, the sensor includes millimeter-wave radar.

[0029] In some embodiments, the set distance is 1.5m to 2.5m.

[0030] In some embodiments, the refrigerator further includes:

[0031] A cable management box, including a receiving cavity for installing cables, the cable management box being mounted on the cabinet door; and

[0032] A wire harness box includes a mounting cavity, the wire harness box being mounted on the housing; one end of the wiring box is located in the mounting cavity, and the wiring box is configured to be movable relative to the mounting cavity;

[0033] The control circuit also includes:

[0034] A proximity switch is fixedly installed on the inner wall of the mounting cavity; the proximity switch is electrically connected to the controller; and

[0035] A non-contact triggering component is fixedly installed in the wiring box so as to move with the wiring box;

[0036] The proximity switch cooperates with the non-contact triggering component so that the proximity switch is triggered when the non-contact triggering component is detected.

[0037] Wherein, after the sensor is triggered and the proximity switch is triggered, the controller controls the first light strip assembly to turn on in the second mode.

[0038] In some embodiments, the non-contact triggering component includes a magnet.

[0039] In some embodiments, the magnet is made of neodymium iron boron magnet.

[0040] In some embodiments, the brightness of the first light strip assembly in the first mode is lower than the brightness of the first light strip assembly in the second mode.

[0041] The refrigerator provided by the above technical solution includes a first light strip component with adjustable brightness. When a user approaches the refrigerator and the door is not opened, the first light strip component is illuminated, significantly improving the refrigerator's lighting effect and enabling it to provide illumination for the user even in dark environments. When the user opens the refrigerator compartment door, the first light strip component switches to a high-brightness second mode, with the illumination directed towards the inside of the refrigerator. This avoids glare and effectively illuminates the interior, reducing blind spots and allowing the user to clearly see the inside of the refrigerator when taking out or putting in items. When the user moves away from the refrigerator, the first light strip component is turned off, which is both energy-saving and environmentally friendly, effectively reducing the refrigerator's energy consumption. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0043] Figure 1 A schematic diagram of the refrigerator structure provided for an embodiment of this utility model.

[0044] Figure 2 This is a top view of the refrigerator door in a slightly open state, as provided in an embodiment of the present invention.

[0045] Figure 3 A schematic diagram of the structure of the first (or) second light strip assembly provided in the embodiment of this utility model.

[0046] Figure 4 This is a top view of the refrigerator door in the open state according to an embodiment of the present invention.

[0047] Figure 5 This is a side view sectional diagram of the refrigerator door provided in an embodiment of the present invention.

[0048] Figure 6 A method for controlling the brightness of a refrigerator light strip provided in an embodiment of this utility model.

[0049] Figure 7 A logic diagram of a refrigerator light strip brightness control method provided in an embodiment of this utility model.

[0050] Figure label:

[0051] 1. Cabinet; 2. Cabinet door; 3. First LED strip assembly; 4. Second LED strip assembly; 5. Control circuit; 7. Wiring box; 8. Wiring harness box; 9. Wiring;

[0052] 31. First mounting section; 311. First mounting groove; 32. First light strip; 33. First light diffuser strip;

[0053] 41. Second mounting section; 411. Second mounting slot; 42. Second light strip; 43. Second light diffuser strip;

[0054] 50. Sensor; 51. Proximity switch; 52. Non-contact triggering component;

[0055] 71. Reception cavity; 81. Installation cavity. Detailed Implementation

[0056] The following is combined with Figures 1 to 7The technical solutions provided by this utility model will be described in more detail below. The descriptions of exemplary embodiments are merely illustrative and are in no way intended to limit this disclosure or its application or use. This disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make this disclosure thorough and complete, and to fully express the scope of this disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0057] The terms “first,” “second,” and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as “including” or “contains” mean that the element preceding the word covers the element listed after the word, and do not exclude the possibility of covering other elements as well.

[0058] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0059] All terms used in this disclosure, including technical or scientific terms, have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0060] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment shall be considered part of the specification.

[0061] The dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Common structural elements or elements of the same kind are given the same reference numerals in the various drawings, and repeated descriptions of them are omitted where appropriate.

[0062] This embodiment of the invention provides a refrigerator, including a cabinet 1, a door 2, and at least one first light strip assembly 3. The door 2 is rotatably mounted on the cabinet 1. The first light strip assembly 3 is mounted on at least one side of the door 2. The brightness of the first light strip assembly 3 is adjustable. When the door 2 is open, the light from the first light strip assembly 3 is directed towards the interior of the cabinet 1.

[0063] Taking two first light strip assemblies 3 as an example, the length direction of each first light strip assembly 3 is parallel to the height direction of the refrigerator. See also Figure 5 As shown, the first light strip assembly 3 is embedded inside the refrigerator door 2, and the refrigerator door 2 is in the recessed area corresponding to the installation of the first light strip assembly 3. When the refrigerator door 2 is open, the light from the first light strip assembly 3 is directed towards the interior of the refrigerator. The open state of the refrigerator door 2 means that the refrigerator door 2 is opened according to usage habits, either to its maximum angle or to an angle where items can be retrieved. Figure 4 The arrow in the diagram indicates the direction of illumination from the first light strip assembly 3 when the door 2 is opened to its maximum angle.

[0064] In other embodiments, the refrigerator further includes at least one second light strip assembly 4. For example, four second light strip assemblies 4 are provided, with the length direction of each second light strip assembly 4 parallel to the width direction of the refrigerator. The second light strip assemblies 4 are arranged on the doors 2, specifically on each drawer door at the bottom of the refrigerator. The brightness of the second light strip assemblies 4 is adjustable. The first light strip assembly 3 and the second light strip assembly 4 can be fixed by magnetic attraction, adhesive, or other methods, which are more convenient for installation and facilitate future replacement and maintenance.

[0065] The cabinet 1 has a rectangular structure with internal refrigeration and freezing chambers for storing items. It is made of high-strength foam insulation material, which has good thermal insulation performance. The cabinet door 2 is rotatably mounted to the front opening of the cabinet 1 via hinges. The inside of the cabinet door 2 has storage compartments for placing small items, and the edges of the cabinet door 2 are fitted with sealing strips to ensure the airtightness of the cabinet 1 when the cabinet door 2 is closed.

[0066] The first LED strip assembly 3 has three operating modes: mode 1, mode 2, and mode 3. In mode 1, the first LED strip assembly 3 is illuminated at low brightness. In mode 2, the first LED strip assembly 3 is illuminated at high brightness. In mode 3, the first LED strip assembly 3 is off and does not emit light.

[0067] When the distance between the user and the refrigerator is less than a set distance, and the user approaches the refrigerator, the first light strip assembly 3 operates in the first mode. The set distance is, for example, 1.5m to 2.5m. When the user opens the refrigerator, the first light strip assembly 3 switches to the second mode. When the user moves away from the refrigerator, the first light strip assembly 3 is in the third mode, i.e., off and does not emit light.

[0068] There are two first light strip components 3. Taking the user's perspective when facing the refrigerator as a reference, one first light strip component 3 is located at the upper right of the refrigerator, corresponding to the right side of the refrigerator compartment; the other first light strip component 3 is located at the upper left of the refrigerator, corresponding to the left side of the refrigerator compartment.

[0069] The two first light strip components 3 have the same control logic and can be controlled by the same set of control components.

[0070] The refrigerator's crisper compartment has two doors: a first door and a second door. The first door is the right door, and the second door is the left door. When the right door is opened, the first LED strip assembly 3 on the right side is powered on, emitting light to provide ample illumination for items on the right side of the refrigerator, allowing users to quickly find the desired items. When the left door is opened, the first LED strip assembly 3 on the left side is powered on, emitting light to provide ample illumination for items on the left side of the refrigerator, also allowing users to quickly find the desired items.

[0071] Optionally, the refrigerator has five doors, two of which are French doors corresponding to the refrigerator compartment. The other three doors serve as doors to the freezer / fresh food compartment below the refrigerator compartment. Second LED strip components 4 are positioned on the freezer / fresh food compartment doors 2; specifically, one second LED strip component 4 can be installed on the top and bottom edges of each of the three drawers.

[0072] The second LED strip assembly 4 has three operating modes: mode four, mode five, and mode six. In mode four, the second LED strip assembly 4 is illuminated at a low brightness. In mode five, the second LED strip assembly 4 is off and does not emit light. When the second LED strip assembly 4 is in mode six, it is illuminated, and the brightness is higher than that of the second LED strip assembly 4 in mode four.

[0073] When a user approaches the refrigerator, the second light strip component 4 is simultaneously powered on and turns on in the fourth mode. In the fourth mode, the brightness of the second light strip component 4 is the same as that of the first light strip component 3 in the first mode. This mainly serves to alert the user and prevent the user from bumping into the refrigerator in the dark.

[0074] This refrigerator significantly improves its lighting effect by incorporating a first light strip assembly 3 and a second light strip assembly 4. This allows the refrigerator to provide illumination even in dark environments. When the user opens the refrigerator compartment door 2, the first light strip assembly 3 switches to a high-brightness second mode, reducing blind spots and ensuring the user can clearly see the interior of the refrigerator when retrieving items. When the user is away from the refrigerator, both the first light strip assembly 3 and the second light strip assembly 4 are off, saving energy and reducing the refrigerator's energy consumption.

[0075] In some embodiments, the first LED strip assembly 3 includes a first mounting portion 31, a first LED strip 32, and a first light-diffusing strip 33. The first mounting portion 31 includes a first mounting groove 311. The first LED strip 32 is mounted inside the first mounting groove 311. The first light-diffusing strip 33 is mounted inside the first mounting groove 311 and covers the first LED strip 32.

[0076] In some embodiments, the first mounting portion 31 is a long strip structure made of ABS engineering plastic, which has good toughness and strength. It includes a first mounting groove 311, which is arranged along the length of the first mounting portion 31. The cross-section of the first mounting groove 311 is U-shaped, and inwardly protruding snap-fit ​​portions are provided on both side walls of the groove for fixing the first light strip 32 and the first light-diffusing strip 33. Taking the installation of the first light strip assembly 3 onto the housing 1 as an example, the first light strip assembly 3 is detachably connected to the housing 1. The first mounting portion 31 is fixed to the inner wall of the housing 1 by screws, and bolts pass through the mounting holes at both ends of the first mounting portion 31 to connect with the housing 1.

[0077] The first light strip 32 uses an LED light strip or other light-emitting body structure. The LED light strip includes multiple LED beads connected in series, a flexible circuit board, and an external insulating protective layer. The LED beads are evenly soldered onto the flexible circuit board, and the insulating protective layer is made of transparent silicone material, which has waterproof and moisture-proof properties. The first light strip 32 is installed inside the first mounting slot 311, and one end of its flexible circuit board is connected to a power connector, which is connected to the power line inside the refrigerator to provide power. Of course, the first light strip 32 can also obtain power in other ways.

[0078] The first light-diffusing strip 33 is made of polycarbonate material and is elongated, with its cross-section matching the first mounting groove 311. The surface of the first light-diffusing strip 33 is either frosted or glossy. The first light-diffusing strip 33 is installed in the first mounting groove 311 and covers the first light strip 32. The first light-diffusing strip 33 is fixed by the snap-fit ​​parts on both sides of the first mounting groove 311, and its length is consistent with the length of the first mounting groove 311, which can scatter and homogenize the light emitted by the first light strip 32.

[0079] When the door 2 is opened, the first light strip 32 is powered on, and the LED beads emit light. The light is first scattered and homogenized by the first light-diffusing strip 33 before being projected onto the corresponding area inside the refrigerator and the surrounding area. The first light strip assembly 3 installed on the left side of the cabinet 1 can evenly illuminate the left side and the slightly left center of the cabinet 1 after light diffusing; the first light strip assembly 3 installed on the right side of the door 2 can evenly illuminate the corresponding area inside the cabinet 1 on the right side of the door 2, avoiding light spots and uneven brightness caused by direct light from the LED beads, allowing users to see the items more clearly.

[0080] In other embodiments, the material of the first mounting part 31 is not limited to ABS engineering plastic; it can also be made of aluminum alloy, formed by extrusion, which has higher strength and better heat dissipation performance, suitable for situations where the first light strip 32 has a higher power. An adhesive layer is provided on the bottom and sidewalls of the first mounting groove 311 to fix the first light strip 32 and the first light-diffusing strip 33 by adhesive bonding. The first light strip 32 can also be a COB light strip, which has a more uniform light-emitting surface and higher brightness. The material of the first light-diffusing strip 33 can be replaced with acrylic, which has higher light transmittance and can also achieve a good light-diffusing effect.

[0081] The above technical solution includes a first light strip assembly 3 with a first light-diffusing strip 33, which makes the illumination of the first light strip 32 almost free of light spots and uneven brightness, thus improving the uniformity of illumination; the installation between the first mounting part 31, the first light strip 32 and the first light-diffusing strip 33 is firm and not easy to fall off, thus extending the service life of the light strip; the first light strip assembly 3 has three different modes, effectively taking into account the overall improvement of the lighting quality inside the refrigerator, making it convenient for users to quickly and accurately take and put away items, improving the user experience, alerting users in dark environments, preventing users from bumping into the refrigerator, saving energy and reducing energy consumption, and other needs.

[0082] In some embodiments, the second light strip assembly includes a second mounting portion 41, a second light strip 42, and a second light-diffusing strip 43. The second mounting portion 41 includes a second mounting groove 411; the second light strip 42 is mounted inside the second mounting groove 411; and the second light-diffusing strip 43 is mounted inside the second mounting groove 411 and covers the second light strip 42.

[0083] In some embodiments, the refrigerator further includes a control circuit 5, which is electrically connected to the first light strip assembly 3 and / or the second light strip assembly 4 to control the brightness of the first light strip assembly 3 and / or the second light strip assembly 4.

[0084] Taking the use of two different control circuits 5 to control the first LED strip assembly 3 and the second LED strip assembly 4 respectively as an example, the first control circuit 5 is electrically connected to the first LED strip assembly 3 to control the brightness of the first LED strip assembly 3. The second control circuit 5 is electrically connected to the second LED strip assembly 4 to control the brightness of the second LED strip assembly 4. The first control circuit 5 and the first LED strip assembly 3 will be introduced below.

[0085] The first control circuit 5 includes a first controller, a first brightness adjustment module, a first power management module, and a first signal receiving module. The first controller uses an existing chip as its control core, responsible for receiving and processing various signals and issuing corresponding control commands. The first brightness adjustment module includes an adjustable resistor and a driver chip, which can change the output current according to the commands of the first controller, thereby adjusting the brightness of the light strip assembly. The first power management module is connected to the refrigerator's internal power supply, providing a stable operating voltage for the first light strip assembly 3. The first signal receiving module can receive signals from the door 2 switch and signals indicating whether a user is approaching the refrigerator, and controls the first light strip assembly 3 to operate in different modes based on the received signals.

[0086] The output of the first control circuit 5 is connected to the power interface of the first light strip assembly 3 via a wire.

[0087] In the first mode, when a user approaches the refrigerator and door 2 is not opened, only the sensor is triggered. The sensor sends a signal to the first signal receiving module, which can receive the signal via Bluetooth, WiFi, or other methods. The first signal receiving module transmits the signal to the first controller, which then sends a command to the first brightness adjustment module. The first brightness adjustment module outputs a corresponding current, and the first light strip assembly 3 emits light according to the brightness set in the first mode. The user can send different brightness commands to the first controller via the first brightness adjustment button or touch key on the refrigerator control panel. The first controller controls the brightness adjustment module to change the output current, achieving multi-level brightness adjustment of the first light strip assembly 3. For example, in the first mode, the first light strip assembly 3 has three levels, from dimmest to brightest.

[0088] In the second mode, when the user approaches the refrigerator and the door 2 is open, the proximity switch 51 sends a signal to the first signal receiving module, which can receive the signal via Bluetooth, WiFi, or other methods. The first signal receiving module transmits the signal to the controller, which then sends a command to the first brightness adjustment module. The first brightness adjustment module outputs a corresponding current, and the first light strip assembly 3 illuminates according to the brightness set in the second mode. The user can send different brightness commands to the first controller via the first brightness adjustment button or touch key on the refrigerator control panel. The first controller controls the first brightness adjustment module to change the output current, achieving multi-level brightness adjustment of the first light strip assembly 3. For example, in the second mode, the first light strip assembly 3 has five levels from dimmest to brightest. When the first light strip assembly 3 is in the second mode, it is illuminated, and its brightness is higher than that in the first mode.

[0089] In the third mode, the user is not near the refrigerator, the signal receiving module does not receive a signal, and the first light strip component 3 does not light up.

[0090] The second control circuit 5 and the second light strip assembly 4 will be introduced below.

[0091] The second control circuit 5 can be implemented in the same way as the first control circuit, including a second controller, a second brightness adjustment module, a second power management module, and a second signal receiving module. The second controller uses an existing chip as its control core, responsible for receiving and processing various signals and issuing corresponding control commands. The second brightness adjustment module includes an adjustable resistor and a driver chip, which can change the output current according to the commands of the second controller, thereby adjusting the brightness of the second light strip assembly 4. The second power management module is connected to the refrigerator's internal power supply, providing a stable operating voltage for the second light strip assembly 4. The second signal receiving module detects whether a user is approaching the refrigerator and controls the second light strip assembly 4 to be in different modes based on the received signal.

[0092] The output of the second control circuit 5 is connected to the power interface of the second light strip assembly 4 via a wire.

[0093] In the fourth mode, when a user approaches the refrigerator, the proximity switch 51 sends a signal to the second signal receiving module, which can receive the signal via Bluetooth, Wi-Fi, or other methods. The second signal receiving module transmits the signal to the controller, which then sends a command to the second brightness adjustment module. The second brightness adjustment module outputs a corresponding current, and the second light strip assembly 4 emits light according to the brightness set in the fourth mode. The user can send different brightness commands to the second controller via the second brightness adjustment button or touch key on the refrigerator control panel. The second controller controls the second brightness adjustment module to change the output current, achieving multi-level brightness adjustment of the first light strip assembly 3. For example, in the fourth mode, the second light strip assembly 4 has three levels, from dimmest to brightest.

[0094] In the fifth mode, the user is not near the refrigerator, the signal receiving module does not receive a signal, and the second light strip component 4 does not light up.

[0095] The above technical solution enables flexible adjustment of the first light strip assembly 3 and the second light strip assembly 4 through the control circuit 5. Users can select the appropriate brightness according to the usage scenario and personal habits, avoiding the problems of excessively strong light causing glare or excessively dim light making it difficult to see. Secondly, the automatic control of the start and stop of the first light strip assembly 3 and the second light strip assembly 4 in conjunction with the opening and closing status of the cabinet door 2 reduces unnecessary energy consumption, making it more energy-efficient and environmentally friendly. Furthermore, the multiple alternative implementation methods allow the control circuit 5 to adapt to different cost budgets and functional requirements, enhancing the market adaptability of the product. Finally, it improves the user's interactive experience with the refrigerator, making the use of the refrigerator more intelligent and user-friendly.

[0096] In some embodiments, the control circuit 5 includes a sensor mounted on the door 2, configured to be triggered when it detects that the distance between the user and the refrigerator is less than a set distance. The controller is communicatively connected to the sensor to control the first light strip assembly 3 to turn on in a first mode and / or the second light strip assembly 4 to turn on in a fourth mode after the sensor is triggered.

[0097] The sensor can specifically be a millimeter-wave radar, which is installed on the upper-middle part of the outer surface of the enclosure door 2. Its structure includes an antenna module, an RF front-end, a signal processing module, and a power supply module. The antenna module is responsible for transmitting and receiving millimeter-wave signals, the RF front-end amplifies and mixes the signals, the signal processing module uses a dedicated radar signal processor to analyze and calculate the received echo signals, and the power supply module provides a stable operating voltage for the entire radar sensor.

[0098] This millimeter-wave radar is designed to be triggered when it detects that the distance between the user and the refrigerator is less than a set distance (e.g., 1.5–2.5 meters). When a person approaches the refrigerator, the millimeter-wave signal emitted by the antenna module is reflected back after encountering the body. The reflected signal is received by the antenna module and transmitted to the radio frequency front end, where it is processed and sent to the signal processing module. The signal processing module calculates the real-time distance between the person and the refrigerator by analyzing parameters such as signal propagation time and frequency changes. When the distance is less than the set distance, it outputs a trigger signal.

[0099] The controller and sensor are connected via wires to receive the sensor's trigger signal. After the sensor is triggered, the controller controls the first LED strip assembly 3 to turn on in a first mode, which is a low-brightness illumination mode. Simultaneously, the controller can also control the second LED strip assembly 4 to turn on in a fourth mode, which is also a low-brightness illumination mode. Optionally, at least one of the first LED strip assembly 3 and the second LED strip assembly 4 can use a flashing mode.

[0100] Millimeter-wave radar has stronger environmental adaptability, and can accurately detect people approaching even in darkness or in bad weather, ensuring the reliability of triggering; its detection range is wide and its accuracy is high, which can more accurately determine the distance between people and refrigerators, improving the accuracy of triggering.

[0101] In some embodiments, the refrigerator further includes a wiring box 7 and a wiring harness box 8. The wiring box 7 includes a receiving cavity 71 for installing wiring and is mounted on the door 2. The wiring harness box 8 includes a mounting cavity 81 and is mounted on the cabinet 1. The position of the wiring harness box 8 is fixed and does not change with the opening and closing of the refrigerator door. One end of the wiring box 7 is located in the mounting cavity 81, and the wiring box 7 is configured to be movable relative to the mounting cavity 81. The wiring box 7 changes position with the opening and closing of the refrigerator door, triggering a proximity switch 51 by changing its position.

[0102] The control circuit 5 also includes a proximity switch 51 and a non-contact triggering component 52. The proximity switch 51 is fixedly mounted on the inner wall of the mounting cavity 81; the proximity switch 51 is electrically connected to the controller. The non-contact triggering component 52 is fixedly mounted in the wiring box 7 to move with the wiring box 7. The proximity switch 51 cooperates with the non-contact triggering component 52 so that the proximity switch 51 is triggered when the non-contact triggering component 52 is detected. After the sensor is triggered and the proximity switch 51 is triggered, the controller controls the first light strip assembly 3 to turn on according to the second mode. In some embodiments, the non-contact triggering component 52 includes a magnet. In some embodiments, the magnet is made of neodymium iron boron magnet.

[0103] The wiring box 7 and the wire harness box 8 work together to protect the wiring and trigger the proximity switch 51 by changing the position of the wiring box 7.

[0104] The wiring box 7 is made of engineering plastics such as ABS and has a long, narrow structure. Inside, there is a rectangular cavity 71 for accommodating wiring, capable of holding wires connecting electrical components such as the door 2 light strip and sensors. One end of the wiring box 7 is closed, while the other end is open, allowing wiring to easily enter and exit. The wiring box 7 is mounted to the inner edge of the door 2 via a hinged component, specifically on the side where the door 2 connects to the refrigerator body 1. When the refrigerator door is closed, the length of the wiring box 7 is aligned with the depth of the door 2.

[0105] The wiring harness box 8 can also be made of engineering plastics such as ABS. It has an internal mounting cavity 81, the size of which is larger than the size of the insertion end of the wiring box 7, providing space for the movement of the wiring box 7. The wiring harness box 8 is fixedly installed on the side wall of the cabinet 1 near the hinge of the door 2 by screws and other fasteners. The position of the wiring harness box 8 is fixed and will not change with the opening and closing of the refrigerator door.

[0106] The wiring box 7 is configured to be movable relative to the mounting cavity 81. When the refrigerator door 2 is opened, the door 2 moves the wiring box 7 outward, and the portion of the wiring box 7 located inside the mounting cavity 81 gradually decreases; when the refrigerator door 2 is closed, the door 2 moves the wiring box 7 inward, and the portion of the wiring box 7 located inside the mounting cavity 81 gradually increases.

[0107] A proximity switch 51, which is an inductive proximity switch, is installed on the inner wall of the mounting cavity 81 of the wiring harness box 8. When the refrigerator door 2 is closed, the non-contact triggering component on the wiring box 7 is aligned with the proximity switch 51 on the inner wall of the mounting cavity 81, and the proximity switch 51 recognizes that the door is closed. When the refrigerator door 2 is opened to a certain angle, the wiring box 7 moves a certain distance out of the mounting cavity 81, offsetting from the proximity switch 51, and the door opens. Based on the state of the proximity switch 51, the activation of the refrigerator's internal lighting or other functions can be controlled.

[0108] The wiring box 7 and the wire harness box 8 provide good protection for the wiring between the door 2 and the cabinet 1, preventing the wiring from being pulled or worn during the opening and closing of the door, and extending the service life of the wiring. The wiring box 7 changes position with the opening and closing of the door and triggers the proximity switch 51, realizing automated control based on the door status and improving the intelligence level of the refrigerator.

[0109] The proximity switch 51 and the non-contact triggering component 52 work together to identify the open and closed state of the refrigerator door 2.

[0110] The proximity switch 51 is fixedly installed in the middle of the inner side wall of the mounting cavity 81 of the wire harness box 8, and is electrically connected to the first controller and the second controller described above through wires, so that the detection signal can be transmitted to the first controller and the second controller.

[0111] The non-contact triggering component 52 is fixedly installed at one end of the wiring box 7 inside the mounting cavity 81. In this embodiment, it is a magnet, made of neodymium iron boron magnet, which has strong magnetic force. The magnet is connected to the wiring box 7 by adhesive or clips and can move synchronously with the movement of the wiring box 7.

[0112] When the refrigerator door 2 is opened, the wiring box 7 drives the magnet to move from the mounting cavity 81 of the wiring harness box 8 to the outside. As the distance between them increases, when the magnet moves out of the detection range of the proximity switch 51, the proximity switch 51 can no longer detect the magnet. The proximity switch 51 sends a signal to the first controller and the second controller that the door 2 is closed at this time. When the refrigerator door 2 is closed, the wiring box 7 drives the magnet to move into the mounting cavity 81 and close to the proximity switch 51. The proximity switch 51 sends a signal to the first controller and the second controller that the door 2 is open at this time.

[0113] Upon receiving a signal that a sensor (such as millimeter-wave radar) has been triggered, and simultaneously receiving a signal that the refrigerator door 2 has been opened via proximity switch 51, the first controller controls the first light strip assembly 3 to turn on in the second mode. The second mode is set to a medium-high brightness mode, meaning that the first light strip assembly 3 provides sufficient illumination for the interior of the refrigerator.

[0114] The non-contact triggering component 52 and the proximity switch 51 work together in a non-contact manner, avoiding wear caused by mechanical contact, extending the service life of the components, and providing high triggering sensitivity and strong reliability. A neodymium iron boron magnet is used as the triggering component, ensuring stable magnetic force and stable detection by the proximity switch 51. The first controller needs to simultaneously receive signals from both the sensor and the proximity switch 51 indicating that the refrigerator door 2 is open before controlling the first light strip assembly 3 to open in the second mode, avoiding false triggering, saving energy, and making the control of the first light strip assembly 3 more intelligent.

[0115] In some embodiments, the brightness of the first light strip assembly 3 in the first mode is lower than the brightness of the first light strip assembly 3 in the second mode.

[0116] The first and second modes are suitable for different scenarios, and by setting different brightness levels, they can meet the lighting needs of different scenarios.

[0117] The first mode primarily alerts the user to the location of the refrigerator. In this mode, the brightness of the first light strip component 3 is relatively low, for example, set to 30% to 40% of its rated brightness. This brightness is sufficient for the user to accurately identify the refrigerator's location in a dark environment when not near the refrigerator door 2, thus preventing potential danger.

[0118] The first mode primarily illuminates the items inside the refrigerator, indicating their location to the user. In the second mode, the brightness of the first light strip assembly 3 is higher, for example, set to 70% to 100% of its rated brightness. This brightness is sufficient for the user to accurately identify the location of items inside the refrigerator even in a dark environment when opening the refrigerator door 2.

[0119] In terms of technical performance, the low brightness setting in the first mode and the high brightness setting in the second mode enable on-demand lighting adjustment, avoiding energy waste when the user does not open the door and providing sufficient light when the door is open, thus improving energy efficiency. The significant difference in brightness allows users to intuitively perceive the refrigerator's working status, enhancing the convenience of human-computer interaction. The different brightness values ​​and implementation methods provide more flexibility in product design, adapting to the usage habits and needs of different user groups, further enhancing the product's practicality and competitiveness.

[0120] See Figure 6 and Figure 7 This utility model embodiment provides a method for controlling the brightness of a refrigerator light strip, based on the refrigerator implementation described in the above embodiment. It is used to precisely adjust the brightness of the refrigerator light strip, specifically adjusting the brightness of the first light strip assembly 3 and the second light strip assembly 4. The method includes the following steps:

[0121] Step S100: Determine if a user is near the refrigerator provided by any of the technical solutions of this utility model. This step, by detecting the distance between the user and the refrigerator, provides a basis for judgment for the subsequent control of the first light strip assembly 3 and the second light strip assembly 4.

[0122] This is achieved using sensors (such as millimeter-wave radar) installed on the refrigerator door 2. The millimeter-wave radar's signal transmitter continuously emits millimeter-wave signals around the refrigerator, while the millimeter-wave radar's receiver receives the echo signals reflected by the user in real time. The millimeter-wave radar's signal processing unit analyzes the echo signals to calculate the real-time distance between the user and the refrigerator.

[0123] In step S200, if a user approaches the refrigerator, the first light strip assembly 3 of the refrigerator is turned on in the first mode and / or the second light strip assembly 4 is turned on in the fourth mode; if no user approaches the refrigerator, the first light strip assembly 3 and / or the second light strip assembly 4 of the refrigerator are turned off.

[0124] When the distance between the user and the refrigerator is less than or equal to a set value, it is determined that a user is approaching the refrigerator. The sensor sends a control signal to the first controller and the second controller so that the first light strip assembly 3 lights up in the first mode and the second light strip assembly 4 lights up in the fourth mode.

[0125] If necessary, when the user opens the freezer compartment of the refrigerator, i.e. the lower drawer, the second light strip assembly 4 can be turned on in the sixth mode, with at least one second light strip assembly 4 pointing towards the inside of the opened drawer to illuminate the items inside.

[0126] The sensor has a preset distance threshold for when a user approaches, i.e., a set value (for example, 1.5m to 2.5m). The sensor's signal processing unit compares the real-time calculated distance with the set value: if the real-time distance is less than the set value, it is determined that "a user is approaching", and the sensor's signal processing unit sends a trigger signal to the first controller and the second controller through the communication interface; if the real-time distance is greater than or equal to the set value, it is determined that "no one is approaching".

[0127] The above technical solution enables more precise on-demand lighting: by detecting the user's proximity in real time, the first light strip component 3 and the second light strip component 4 are only turned on when a user is present, and turned off when no one is present, avoiding unnecessary energy consumption. This is more energy-efficient and intelligent than the traditional "lights up when the door is open and turns off when the door is closed" mode. Furthermore, this method can adapt to different ambient light, temperatures, and user habits, improving the product's versatility.

[0128] In some embodiments, after step S200 described above, the refrigerator light strip brightness control method further includes the following steps:

[0129] Step S300: Determine whether the refrigerator door 2 has been opened.

[0130] If a user approaches the refrigerator, the status of the door 2 is further determined, providing a basis for the subsequent switching of the first light strip component 3 to a second mode with higher brightness.

[0131] In step S400, if the door 2 is opened, the first light strip assembly 3 of the refrigerator is turned on in the second mode. In the first mode, the brightness of the first light strip assembly 3 is lower than that in the second mode.

[0132] In some embodiments, a proximity switch 51 and a non-contact triggering component 52 are used to determine whether the refrigerator door 2 is open: when the proximity switch 51 detects the non-contact triggering component 52, the door 2 is determined to be closed. Specifically, when the magnetic force between the proximity switch 51 and the non-contact triggering component 52 is at its maximum, the door 2 is determined to be closed. When the proximity switch 51 does not detect the non-contact triggering component 52, the door 2 is determined to be open. Specifically, when the magnetic force between the proximity switch 51 and the non-contact triggering component 52 is at its minimum, the door 2 is determined to be open.

[0133] Based on the judgment result of step S300, when the refrigerator door 2 is opened, the first light strip assembly 3 is switched from the first mode to the second mode with higher brightness to meet the user's high-brightness lighting needs when taking out and putting in items.

[0134] When the first controller receives a signal from the proximity switch 51 that the cabinet door 2 has been opened, and the first light strip assembly 3 has previously been in the first mode due to sensor triggering, the controller sends a control signal to the drive circuit of the first light strip assembly 3 to switch to the second mode.

[0135] In the second mode, the first light strip assembly 3 illuminates with higher brightness. The increased luminous intensity of the LED beads in the first light strip assembly 3, after being homogenized by the first light-diffusing strip 33, provides more ample lighting for the interior of the refrigerator, making it easier for users to clearly see and retrieve items.

[0136] In the various embodiments described above, the refrigerator may further include a photosensor to determine the brightness of the surrounding environment. During the day, the first light strip assembly 3 and the second light strip assembly 4 may remain off when a user approaches the refrigerator, only illuminating when the user opens the refrigerator door 2.

[0137] See Figure 7 The following section introduces a specific control logic.

[0138] Each of the two doors of the refrigerator's crisper compartment is equipped with a proximity switch 5 and a corresponding non-contact triggering component 52, i.e., a magnet. When the crisper compartment door 2 is closed, the magnetic force between the proximity switch 51 and the non-contact triggering component 52 is at its maximum. Based on the magnetic force, the door 2 is closed.

[0139] When sensor 50 detects that someone is approaching the refrigerator and the distance is less than a set value, sensor 50 sends out a corresponding detection signal, and the first light strip assembly 3 and the second light strip assembly 4 light up in ambient light mode, that is, the first light strip assembly 3 lights up in the first mode and the second light strip assembly 4 lights up in the fourth mode to show the outline of the refrigerator and prevent people from bumping into the refrigerator.

[0140] When sensor 50 detects that someone has left the refrigerator, sensor 50 sends out a corresponding detection signal, and the first light strip assembly 3 and the second light strip assembly 4 are turned off.

[0141] If the user does not leave but opens the refrigerator door 2, as the refrigerator door 2 gradually opens, the distance between the proximity switch 51 and the non-contact trigger component 52 gradually increases, and the magnetic force between them gradually decreases. Based on the magnetic force between the proximity switch 51 and the non-contact trigger component 52, it can be determined that the door 2 has been opened. The proximity switch 51 sends a corresponding control signal, the first light strip assembly 3 illuminates in the second mode, and the second light strip assembly 4 remains in the fourth mode.

[0142] After the user retrieves their items and closes the locker door 2, the first light strip assembly 3 switches to the first mode. The second light strip assembly 4 remains in the fourth mode.

[0143] When the user leaves the refrigerator after taking the items, the sensor 50 sends a corresponding detection signal, and the first light strip assembly 3 and the second light strip assembly 4 turn off.

[0144] The aforementioned technical solution achieves precise matching of lighting needs. By judging the state of door 2, it provides higher brightness when door 2 is open to meet the user's need for a clear view during operation, and maintains lower brightness when door 2 is closed, balancing energy saving and pre-observation functions, making it more intelligent than a single brightness mode. In addition, automatic mode switching improves ease of use. After door 2 is opened, it automatically switches to the second mode, eliminating the need for manual brightness adjustment by the user, reducing operation steps, and is especially suitable for use when handling items with both hands.

[0145] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0146] In the description of this utility model, each technical feature may be combined with other technical features where feasible.

[0147] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A refrigerator characterized by comprising: include: Box (1); The door (2) is rotatably mounted on the box body (1); as well as At least one first light strip assembly (3) is installed on at least one side of the door (2); the brightness of the first light strip assembly (3) is adjustable; wherein, when the door (2) is open, the illumination direction of the first light strip assembly (3) is directed toward the interior of the box (1).

2. The refrigerator according to claim 1, characterized in that, The first light strip assembly (3) includes: The first mounting part (31) includes a first mounting slot (311); The first light strip (32) is installed inside the first mounting slot (311); and The first light-diffusing strip (33) is installed in the first mounting groove (311) and covers the first light strip (32).

3. The refrigerator according to claim 1, characterized in that, Also includes: At least one second light strip assembly (4) is arranged in the door (2); The brightness of the second light strip assembly (4) is adjustable.

4. The refrigerator according to claim 3, characterized in that, The second light strip assembly (4) includes: The second mounting part (41) includes a second mounting slot (411); The second light strip (42) is installed inside the second mounting slot (411); and The second light-diffusing strip (43) is installed in the second mounting groove (411) and covers the second light strip (42).

5. The refrigerator according to claim 3, characterized in that, Also includes: The control circuit (5) includes a controller electrically connected to the first light strip assembly (3) and / or the second light strip assembly (4) to control the brightness of the first light strip assembly (3) and / or the second light strip assembly (4).

6. The refrigerator according to claim 5, characterized in that, The first light strip assembly (3) includes a first mode, a second mode, and a third mode; When the first light strip assembly (3) is in the first mode, the first light strip assembly (3) is lit; when the first light strip assembly (3) is in the second mode, the first light strip assembly (3) is lit, and the brightness is higher than the brightness of the first light strip assembly (3) in the first mode; when the first light strip assembly (3) is in the third mode, the first light strip assembly (3) is turned off; and / or, The second light strip assembly (4) includes a fourth mode, a fifth mode, and a sixth mode; When the second light strip assembly (4) is in the fourth mode, the second light strip assembly (4) is lit; when the second light strip assembly (4) is in the fifth mode, the second light strip assembly (4) is turned off; when the second light strip assembly (4) is in the sixth mode, the second light strip assembly (4) is lit, and the brightness is higher than the brightness of the second light strip assembly (4) in the fourth mode.

7. The refrigerator according to claim 6, characterized in that, The control circuit (5) further includes: A sensor (50) is installed on the door (2) and is configured to be triggered when it detects that the distance between the user and the refrigerator is less than a set distance; The controller is communicatively connected to the sensor (50) to control the first light strip assembly (3) to turn on in the first mode and / or the second light strip assembly (4) to turn on in the fourth mode after the sensor (50) is triggered.

8. The refrigerator according to claim 7, characterized in that, The sensor (50) includes a millimeter-wave radar.

9. The refrigerator according to claim 7, characterized in that, The set distance is 1.5m to 2.5m.

10. The refrigerator according to claim 7, characterized in that, Also includes: The wiring box (7) includes a receiving cavity (71) for installing wiring, and the wiring box (7) is installed on the door (2); as well as A wire harness box (8) includes a mounting cavity (81) and is mounted on the housing (1); one end of a wiring box (7) is located in the mounting cavity (81) and the wiring box (7) is configured to be movable relative to the mounting cavity (81); The control circuit (5) further includes: A proximity switch (51) is fixedly installed on the inner wall of the mounting cavity (81); the proximity switch (51) is electrically connected to the controller; and A non-contact triggering component (52) is fixedly installed in the wiring box (7) to move with the wiring box (7); The proximity switch (51) cooperates with the non-contact triggering component (52) so that the proximity switch (51) is triggered when the non-contact triggering component (52) is detected; The controller controls the first light strip assembly (3) to open in the second mode after the sensor is triggered and the proximity switch (51) is triggered.

11. The refrigerator according to claim 10, characterized in that, The non-contact triggering component (52) includes a magnet.

12. The refrigerator according to claim 11, characterized in that, The magnet is made of neodymium iron boron magnet.

13. The refrigerator according to claim 6, characterized in that, In the first mode, the brightness of the first light strip assembly (3) is lower than that in the second mode.

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