Refrigerator

Abstract

The utility model relates to the field of household electrical appliances, especially a refrigerator. The refrigerator comprises a freezer box, a drawer assembly, an illumination assembly and a triggering assembly, the freezer box has a freezing compartment inside; the drawer assembly comprises a plurality of drawers movably connected to the freezer box, and the drawers are arranged along the height direction of the refrigerator; the illumination assembly is connected to the freezer box; the triggering assembly comprises a plurality of ultrasonic sensors, the ultrasonic sensors are arranged correspondingly to the plurality of drawers, and the ultrasonic sensors are configured to trigger the illumination assembly to emit light with different brightness in response to the movement of the drawer assembly; along the height direction of the refrigerator, a sound attenuation rib is arranged between adjacent ultrasonic sensors. The advantage lies in that the ultrasonic sensor is arranged to accurately detect the displacement of the drawer, a sound attenuation rib is arranged between the ultrasonic sensors, and the structure of the sound attenuation rib is optimized to prevent mutual interference between adjacent ultrasonic sensors and improve the stability of the triggering assembly.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a refrigerator. Background Technology

[0002] The freezer compartment of a refrigerator is usually located on the bottom of the refrigerator. Users usually have to bend over to take out items, which often blocks the light inside the freezer compartment, making it difficult to see the items in the drawers. Therefore, it is necessary to install a lighting unit in the freezer compartment.

[0003] Conventional freezers use a single light source for their lighting components, resulting in limited illumination intensity. This makes it difficult to achieve a better user experience when the drawers are well-lit, especially in larger freezer compartments with many drawers. Problems arise where the upper drawers are too brightly lit or the bottom drawers are too dimly lit, failing to meet user expectations. Utility Model Content

[0004] In view of the above-mentioned technical problems, this utility model provides a refrigerator.

[0005] A refrigerator includes a freezer body with a freezer compartment inside; a drawer assembly including multiple drawers, all of which are movably connected to the freezer body and housed in the freezer compartment, and arranged along the height direction of the refrigerator; a lighting assembly connected to the freezer body; and a triggering assembly including multiple ultrasonic sensors, which are spaced apart along the height direction of the refrigerator and each corresponds to one of the multiple drawers. The ultrasonic sensors are configured to trigger the lighting assembly to emit light of different brightness in response to movement of the drawer assembly. Sound-absorbing ribs are provided between adjacent ultrasonic sensors along the height direction of the refrigerator.

[0006] This design allows the freezer compartment to maintain a freezing temperature and houses multiple drawers assemblies. These drawers are movably connected to the freezer body and can be pulled out or pushed back in. During drawer movement, an ultrasonic sensor corresponding to each drawer is triggered. This sensor then uses an electrical signal to control an illumination component that emits light of varying brightness. Different drawers moving trigger different ultrasonic sensors, thus allowing the illumination component to emit different lights according to the moving drawer. The ultrasonic sensors are highly accurate, ensuring precise detection of drawer movement. Sound-absorbing ribs effectively block the sound wave paths of adjacent ultrasonic sensors, preventing interference in the confined space. This ensures that each sensor receives only a clear signal reflected from its corresponding drawer, significantly improving the accuracy and reliability of drawer opening / closing detection and laying the foundation for precise, differentiated lighting.

[0007] In one embodiment, the sound-absorbing rib is made of a porous sound-absorbing material.

[0008] In one embodiment, the sound-absorbing rib is provided with a plurality of protrusions, which extend along the length or width direction of the sound-absorbing rib and are arranged alternately.

[0009] In one embodiment, both the sound-absorbing rib and the ultrasonic sensor protrude toward the freezer compartment along the depth direction of the refrigerator, and the protrusion height of the sound-absorbing rib is greater than the protrusion height of the ultrasonic sensor.

[0010] In one embodiment, the triggering component further includes a mounting box, in which the ultrasonic sensor is disposed, the mounting box being detachably connected to the freezer body, the mounting box having an upper side and a lower side along the height direction of the refrigerator, at least one of the upper side and the lower side being connected to the sound-absorbing rib.

[0011] In one embodiment, the sound-absorbing rib is detachably connected to the freezer body.

[0012] In one embodiment, the distance between adjacent ultrasonic sensors along the height direction of the refrigerator is at least 18 cm.

[0013] In one embodiment, the drawer assembly includes three drawers, namely a first drawer, a second drawer, and a third drawer, which are arranged along the height of the refrigerator; the ultrasonic sensor is configured as three, namely a first ultrasonic sensor, a second ultrasonic sensor, and a third ultrasonic sensor, which are respectively arranged in a one-to-one correspondence with the first drawer, the second drawer, and the third drawer.

[0014] In one embodiment, the freezer body includes an air duct plate and a liner, the air duct plate is connected to the liner, the air duct plate has an air outlet, the first ultrasonic sensor and the second ultrasonic sensor are disposed on the air duct plate, and the third ultrasonic sensor is disposed on the liner.

[0015] In one embodiment, the illumination component is connected to the top of the freezer body, and the first ultrasonic sensor, the second ultrasonic sensor and the third ultrasonic sensor are respectively electrically connected to the illumination component;

[0016] The lighting component has a first light, a second light, and a third light with different brightness levels. The first light is triggered by the first ultrasonic sensor, the second light is triggered by the second ultrasonic sensor, and the third light is triggered by the third ultrasonic sensor. The brightness of the third light is greater than that of the second light, and the brightness of the second light is greater than that of the first light.

[0017] Compared to existing technologies, this invention uses ultrasonic sensors to accurately detect drawer displacement. Sound-absorbing ribs are placed between the ultrasonic sensors, and their structure is optimized to prevent interference between adjacent sensors, improving the stability of the triggering component. Furthermore, by determining the displacement of different drawers through the triggering component, different lighting is applied to different drawer layers, achieving uniform lighting and enhancing the user experience. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of one embodiment of the refrigerator provided by this utility model;

[0019] Figure 2 A schematic diagram of the structure of one embodiment of the freezer box provided by this utility model;

[0020] Figure 3 This is a schematic diagram of one embodiment of the lighting component provided by this utility model.

[0021] The symbols in the diagram represent the following meanings:

[0022] 100. Refrigerator; 10. Freezer body; 11. Inner cabinet; 12. Air duct plate; 121. Air outlet; 20. Drawer assembly; 21. First drawer; 22. Second drawer; 23. Third drawer; 30. Lighting assembly; 31. Trigger lever; 32. Base; 33. Light strip; 40. Trigger assembly; 41. First ultrasonic sensor; 42. Second ultrasonic sensor; 43. Third ultrasonic sensor; 44. Sound-absorbing rib; 441. Protrusion. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected to" another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0028] This utility model provides a refrigerator 100, which has a light-emitting component 30 capable of emitting light of different brightness. A trigger component 40 triggers the light-emitting component 30 to emit light of different brightness when different drawers are pulled out, so as to adapt to drawers in multiple different positions such as upper, middle and lower, and make the light more uniform.

[0029] Please see Figures 1-3The refrigerator 100 includes a freezer body 10, a drawer assembly 20, a lighting assembly 30, and a trigger assembly 40. The freezer body 10 has a freezer compartment inside. The drawer assembly 20 includes multiple drawers, which are movably connected to the freezer body 10 and housed in the freezer compartment, and are arranged along the height direction of the refrigerator 100. The lighting assembly 30 is connected to the freezer body 10. The trigger assembly 40 includes multiple ultrasonic sensors, which are spaced apart along the height direction of the refrigerator 100 and are respectively set to correspond one-to-one with multiple drawers. The ultrasonic sensors are configured to trigger the lighting assembly 30 to emit light of different brightness in response to the movement of the drawer assembly 20. Along the height direction of the refrigerator 100, a sound-absorbing rib 44 is provided between adjacent ultrasonic sensors.

[0030] Thus, the freezer compartment has a freezing temperature and houses multiple drawers of the drawer assembly 20. These drawers are movably connected to the freezer body 10 and can be pulled out or pushed back in. During drawer movement, ultrasonic sensors corresponding to each drawer are triggered. These sensors then control the illumination assembly 30 to emit light of varying brightness via electrical signals. Different ultrasonic sensors are triggered when different drawers move, allowing the illumination assembly 30 to emit different lights according to the moving drawers. The ultrasonic sensors are highly accurate, ensuring precise detection of drawer movement. The sound-absorbing ribs 44 effectively block the sound wave paths of adjacent ultrasonic sensors, preventing interference in the confined space. This ensures that each sensor receives only a clear signal reflected from its corresponding drawer, greatly improving the accuracy and reliability of drawer opening / closing detection and providing a foundation for subsequent precise differentiated lighting.

[0031] Specifically, the sound-absorbing rib 44 is made of a porous sound-absorbing material. In this way, by specifically defining the sound-absorbing rib 44 as a porous sound-absorbing material, it is upgraded from a simple sound wave blocking structure to a sound wave energy absorption structure. It can actively consume sound wave energy instead of simply reflecting it, thus eliminating sound wave crosstalk more efficiently. At the same time, it helps to reduce sound wave reflection noise in the room and further optimizes the signal-to-noise ratio of the sensor.

[0032] Furthermore, the sound-absorbing rib 44 is provided with a plurality of protrusions 441, which extend along the length or width direction of the sound-absorbing rib 44 and are staggered. By providing staggered protrusions 441 on the sound-absorbing rib 44, the complexity of the sound wave propagation path and the contact area with the sound-absorbing material are significantly increased. This structure causes the sound waves to undergo multiple reflections and refractions between the protrusions 441, thereby being more fully attenuated and absorbed.

[0033] Along the depth direction of the refrigerator 100, both the sound-absorbing rib 44 and the ultrasonic sensor protrude towards the freezer compartment, and the protrusion height of the sound-absorbing rib 44 is greater than that of the ultrasonic sensor. In this way, the sound-absorbing rib 44 can form an effective physical barrier, allowing it to block the main sound wave cone angle emitted by the sensor and prevent it from directly diffusing into the detection area of ​​adjacent sensors.

[0034] The trigger assembly 40 also includes a mounting box (not shown), in which the ultrasonic sensor is housed. The mounting box is detachably connected to the freezer body 10. The mounting box has an upper side and a lower side along the height direction of the refrigerator 100, and at least one of the upper and lower sides is connected to a sound-dampening rib 44. This achieves modular integration of the trigger assembly 40. During manufacturing, the ultrasonic sensor and the sound-dampening rib 44 can be integrated into a pre-assembleable unit, which not only simplifies the overall assembly process with the refrigerator body 100 and improves production efficiency, but also ensures the accuracy and consistency of the relative position between the sensor and the sound-dampening rib 44, facilitating mass production and maintenance.

[0035] Preferably, sound-absorbing ribs 44 can be provided on both the upper and lower sides of the mounting box to further optimize the suction effect.

[0036] In other embodiments, the sound-dampening rib 44 is detachably connected to the freezer body 10. This improves the maintainability and flexibility of the product. When a sound-dampening rib 44 needs cleaning or replacement due to long-term use, it can be disassembled and installed individually, reducing maintenance costs and allowing the installation position of the sound-dampening rib 44 to be adjusted according to different refrigerator models or layouts.

[0037] Specifically, to further ensure that adjacent ultrasonic sensors do not interfere with each other, the distance between adjacent ultrasonic sensors along the height of the refrigerator 100 is at least 18 cm. This provides an important dimensional basis for avoiding acoustic crosstalk. This distance is a safe value calculated based on the typical ultrasonic sensor beam angle and detection distance, which effectively ensures that the sound field coverage areas of adjacent sensors do not overlap or have minimal overlap within the main detection range, providing fundamental anti-interference protection from a spatial layout perspective.

[0038] For example, in other embodiments, if the size of the refrigerator 100 is large, the distance can also be set to 21cm, 22cm, etc., and is not limited to the endpoint values ​​mentioned above.

[0039] The drawer assembly 20 includes three drawers, namely the first drawer 21, the second drawer 22 and the third drawer 23, which are arranged along the height of the refrigerator 100; three ultrasonic sensors are provided, namely the first ultrasonic sensor 41, the second ultrasonic sensor 42 and the third ultrasonic sensor 43, which are respectively set to correspond one-to-one with the first drawer 21, the second drawer 22 and the third drawer 23.

[0040] Thus, when the first drawer 21 is pulled out, the first ultrasonic sensor 41 is triggered and transmits an electrical signal to the illumination component 30. The illumination component 30 then emits corresponding light based on the movement signal of the first drawer 21. Similarly, when the second drawer 22 and the third drawer 23 are pulled out, the illumination component 30 can emit corresponding light. When the upper drawer is pulled out, the light is relatively weak, and when the lower drawer is pulled out, the light is stronger, thereby providing a uniform lighting effect.

[0041] Furthermore, the freezer body 10 includes an air duct plate 12 and a cabinet liner 11. The air duct plate 12 is connected to the cabinet liner 11, and the air duct plate 12 has an air outlet 121. A first ultrasonic sensor 41 and a second ultrasonic sensor 42 are disposed on the air duct plate 12, and a third ultrasonic sensor 43 is disposed on the cabinet liner 11. In this way, the existing structural features inside the refrigerator 100 are fully utilized for layout. This distribution method flexibly adapts to the shape of the rear space of the refrigerator 100, avoiding the need to occupy a large amount of additional storage space or change the main structure for installing sensors, demonstrating the design's good adaptability and integration to the overall structure.

[0042] In this embodiment, along the height direction of the refrigerator 100, the lighting component 30 is located at the top of the freezer compartment 10, the first drawer 21 is located at the top, the second drawer 22 is located in the middle, and the third drawer 23 is located at the bottom. Therefore, when the first drawer 21 is pulled out, the light emitted by the lighting component 30 is the weakest, while when the third drawer 23 is pulled out, the light emitted by the lighting component 30 needs to be the strongest, and when the second drawer 22 is pulled out, the lighting component 30 emits moderate light.

[0043] Specifically, the illumination component 30 is connected to the top of the freezer body 10, and the first ultrasonic sensor 41, the second ultrasonic sensor 42, and the third ultrasonic sensor 43 are electrically connected to the illumination component 30 respectively. The illumination component 30 has a first light, a second light, and a third light with different brightness. The first light is triggered by the first ultrasonic sensor 41, the second light is triggered by the second ultrasonic sensor 42, and the third light is triggered by the third ultrasonic sensor 43. The brightness of the third light is greater than that of the second light, and the brightness of the second light is greater than that of the first light.

[0044] In this way, by setting up three drawers corresponding one-to-one with three ultrasonic sensors, independent lighting control for drawers of different heights is achieved, allowing the light intensity to be intelligently adjusted according to the drawer's position. This layout significantly improves the uniformity of lighting inside the freezer, especially alleviating the problem of insufficient lighting in the lower layers due to their depth; users can obtain suitable brightness when operating at different heights, reducing visual fatigue, improving user satisfaction and product ergonomics, and making items on each shelf clearly visible, thus solving the pain point that traditional single lighting cannot adequately address lighting needs at different depths.

[0045] In addition, the lighting assembly 30 also includes a trigger lever 31, which extends forward along the depth of the refrigerator 100 and abuts against the door of the refrigerator 100, controlling the working state of the lighting assembly 30. This achieves an intelligent control function of automatically turning on the light when the door is opened and automatically turning off the light when the door is closed. This mechanism further improves energy efficiency, avoids wasting electricity by keeping the light on continuously, and reduces manual operation by the user, enhancing ease of use. The trigger lever 31 has a simple and reliable structure, good durability, and is suitable for high-frequency daily use scenarios. It also prevents the lighting assembly 30 from remaining off even if the trigger assembly 40 located at the rear malfunctions after prolonged use and becomes easily triggered, or if the trigger assembly 40 remains in the triggered state due to the drawer not being fully pushed in, thus preventing continuous lighting due to these abnormal reasons and avoiding wasted electricity.

[0046] Please see Figure 3 The lighting component 30 also includes a base 32 and a light strip 33. The base 32 is installed on the freezer cabinet, and the light strip 33 is embedded in it and can emit a first light, a second light, and a third light.

[0047] Understandably, if the refrigerator 100 is provided with four drawers in other embodiments, a fourth trigger component 40 and a fourth light can be added accordingly, and it is not limited to embodiments with three of each.

[0048] Compared to existing technologies, this invention uses ultrasonic sensors to accurately detect drawer displacement and incorporates sound-absorbing ribs 44 between the ultrasonic sensors. The optimized structure of these ribs prevents interference between adjacent ultrasonic sensors, improving the stability of the triggering component 40. Furthermore, by using the triggering component 40 to determine the displacement of different drawers, different lighting is applied to different drawer layers, achieving uniform lighting and enhancing the user experience.

[0049] The refrigerator 100 can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the refrigerator 100 to perform corresponding operations, thereby realizing intelligent control of the refrigerator 100 and improving the user experience.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A refrigerator characterized by comprising: include The freezer unit (10) has a freezer compartment inside; The drawer assembly (20) includes multiple drawers, all of which are movably connected to the freezer body (10) and housed in the freezer compartment, and are arranged along the height of the refrigerator; Lighting component (30) is connected to the freezer body (10); The triggering component (40) includes multiple ultrasonic sensors, which are spaced apart along the height direction of the refrigerator and are respectively set to correspond one-to-one with multiple drawers. The ultrasonic sensors are configured to trigger the lighting component (30) to emit light of different brightness in response to the movement of the drawer assembly (20). Along the height direction of the refrigerator, a sound-absorbing rib (44) is provided between adjacent ultrasonic sensors.

2. The refrigerator according to claim 1, characterized in that, The sound-absorbing rib (44) is made of porous sound-absorbing material.

3. The refrigerator according to claim 1, characterized in that, The silencing rib (44) is provided with a plurality of protrusions (441), which extend along the length or width of the silencing rib (44) and are arranged in an alternating manner.

4. The refrigerator according to claim 1, characterized in that, Along the depth direction of the refrigerator, both the sound-absorbing rib (44) and the ultrasonic sensor protrude toward the freezer compartment, and the protrusion height of the sound-absorbing rib (44) is greater than the protrusion height of the ultrasonic sensor.

5. The refrigerator according to claim 1, characterized in that, The triggering component (40) also includes a mounting box, in which the ultrasonic sensor is disposed. The mounting box is detachably connected to the freezer body (10). The mounting box has an upper side and a lower side along the height direction of the refrigerator, and at least one of the upper side and the lower side is connected to the sound-absorbing rib (44).

6. The refrigerator according to claim 1, characterized in that, The sound-absorbing rib (44) is detachably connected to the freezer body (10).

7. The refrigerator according to claim 1, characterized in that, Along the height direction of the refrigerator, the distance between adjacent ultrasonic sensors is at least 18 cm.

8. The refrigerator according to claim 1, characterized in that, The drawer assembly (20) includes three drawers, namely a first drawer (21), a second drawer (22) and a third drawer (23), which are arranged along the height of the refrigerator; The ultrasonic sensors are configured as three, namely a first ultrasonic sensor (41), a second ultrasonic sensor (42), and a third ultrasonic sensor (43), and the first ultrasonic sensor (41), the second ultrasonic sensor (42), and the third ultrasonic sensor (43) are respectively configured to correspond one-to-one with the first drawer (21), the second drawer (22), and the third drawer (23).

9. The refrigerator according to claim 8, characterized in that, The freezer body (10) includes an air duct plate (12) and a cabinet liner (11). The air duct plate (12) is connected to the cabinet liner (11). The air duct plate (12) has an air outlet (121). The first ultrasonic sensor (41) and the second ultrasonic sensor (42) are disposed on the air duct plate (12), and the third ultrasonic sensor (43) is disposed on the cabinet liner (11).

10. The refrigerator according to claim 8, characterized in that, The illumination component (30) is connected to the top of the freezer body (10), and the first ultrasonic sensor (41), the second ultrasonic sensor (42) and the third ultrasonic sensor (43) are electrically connected to the illumination component (30) respectively. The lighting component (30) has a first light, a second light and a third light with different brightness. The first light is triggered by the first ultrasonic sensor (41), the second light is triggered by the second ultrasonic sensor (42), and the third light is triggered by the third ultrasonic sensor (43). The brightness of the third light is greater than that of the second light, and the brightness of the second light is greater than that of the first light.

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