Refrigerator cover plate and refrigerator

Abstract

The application relates to the technical field of connecting structures in refrigerators, and provides a refrigerator cover plate and a refrigerator. The refrigerator cover plate comprises a cover plate main body, a hanging lug used for cooperating with a limiting groove on a refrigerator guide rail to support the cover plate main body, the hanging lug comprises a connecting section and a contact part, the connecting section is connected with the side edge of the cover plate main body, the contact part is connected at one end of the connecting section away from the cover plate main body, a free end of the contact part is formed with a contact surface and an avoiding surface, and the contact surface is used for cooperating with the front wall of the limiting groove. The refrigerator cover plate provided by the application can effectively solve the problem that the existing moisturizing cover plate is prone to being stuck with the support structure such as the guide rail and is difficult to normally fall, and the sealing performance in the drawer is improved.

Description

Technical Field

[0001] This application relates to the field of connection structure technology in refrigerators, and more particularly to refrigerator lids and refrigerators. Background Technology

[0002] To preserve the freshness of fruits and vegetables, a drawer in the refrigerator needs to maintain a high humidity environment. Currently, a moisture-retaining cover is used to cover the fruit and vegetable drawer, creating a sealed space to keep it moist. When the drawer is closed, the moisture-retaining cover rests directly on the top surface of the drawer; when the drawer is pulled out, the cover falls down, and the lugs on both sides of the cover engage with the supporting structures on both sides of the drawer (such as the drawer slides), keeping the cover in place.

[0003] However, the existing internal moisturizing cover structure of refrigerators has obvious technical defects, making it difficult to reliably meet the long-term high humidity requirements of fruit and vegetable drawers: the design of the fit between the cover lugs and the guide rails when the drawer is pulled out is unreasonable, and the two ends of the lugs are prone to collision with the guide rails. Moreover, the lugs often fail to fall completely due to friction between the lugs and the guide rails, resulting in improper installation of the cover, which damages the airtightness of the drawer and makes it impossible to maintain a high humidity environment, ultimately affecting the preservation effect of fruits and vegetables. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the related art. To this end, this application proposes a refrigerator cover to solve the problem that existing moisture-retaining covers are prone to getting stuck due to friction with the guide rails and other supporting structures, making it difficult to fall down normally, thereby improving the sealing performance inside the drawer.

[0005] This application also proposes a refrigerator.

[0006] According to a first aspect of this application, a refrigerator cover includes: Cover plate body; The hanging ear is used to cooperate with the limiting groove on the refrigerator guide rail to support the cover body; the hanging ear includes a connecting section and a contact part, the connecting section is connected to the side of the cover body, the contact part is connected to the end of the connecting section away from the cover body, the free end of the contact part forms a contact surface and a clearance surface, and the contact surface is used to cooperate with the front wall of the limiting groove.

[0007] According to one embodiment of this application, the side of the contact portion that connects to the connecting segment forms the connecting surface of the contact portion; In the direction from the connecting surface of the contact portion to the contact surface of the contact portion, the cross-sectional dimension of the free end of the contact portion decreases linearly.

[0008] According to one embodiment of this application, the avoidance surface includes a first connecting slope, the first connecting slope connecting the connecting surface and the contact surface, such that the dimension of the contact surface in a first direction is smaller than that of the connecting surface; or The avoidance surface includes a first connecting slope and a second connecting slope, both of which connect the connecting surface and the contact surface, such that the dimensions of the contact surface in both the first and second directions are smaller than those of the connecting surface.

[0009] According to one embodiment of this application, the first direction is a horizontal direction to reduce the width of the contact surface in the horizontal direction.

[0010] A refrigerator according to a second aspect of this application, the refrigerator comprising: The box body includes a drawer with an opening at the top; the box body also includes the limiting groove. The aforementioned refrigerator cover covers the upper opening of the drawer to form a closed cavity with the drawer.

[0011] According to one embodiment of this application, the limiting groove has an upper opening and a side opening, and the hook extends into the limiting groove through the side opening; The side wall connecting the upper opening and the bottom wall of the limiting groove is inclined, so that the width of the bottom wall of the limiting groove is greater than the width of the upper opening.

[0012] According to one embodiment of this application, a buffer sleeve is also included on the outer periphery of the ear loop.

[0013] According to one embodiment of this application, the bottom wall of the limiting groove is provided with a first magnetic attractor, and the side of the buffer sleeve facing the bottom wall of the limiting groove is provided with a second magnetic attractor. The first magnetic attractor and the second magnetic attractor cooperate to constrain the position of the hanging ear.

[0014] According to one embodiment of this application, a first magnetic element is provided on the side wall of the limiting groove, and a second magnetic element is provided on the surface of the buffer sleeve facing the side wall of the limiting groove. The first magnetic element and the second magnetic element repel each other to drive the ear hook to reset.

[0015] According to one embodiment of this application, along the depth direction of the limiting groove, the height of the first magnetic element is higher than the height of the second magnetic element, so that the hook is constrained to the bottom wall of the limiting groove by the repulsive force of the first magnetic element and the second magnetic element.

[0016] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects: The refrigerator lid of this application reduces the area of ​​the free end of the hanging ears, allowing the contact surface to engage with the front wall of the limiting groove. This reduces the contact area between the hanging ears and the inner wall of the refrigerator (the front wall of the limiting groove), thereby reducing the likelihood of the hanging ears getting stuck due to friction when they contact the front wall of the limiting groove, preventing them from falling properly to the top surface of the drawer. This ensures that the refrigerator lid can always fall normally after the user pulls out the drawer, effectively guaranteeing the airtightness of the moisture-retaining space formed by the drawer and the refrigerator lid, and improving the preservation effect on vegetables and fruits.

[0017] Furthermore, the cross-sectional dimensions of the free end of the contact part decrease linearly, forming a gradient structure, which reduces the contact area. The reduction in contact area reduces the probability of the hanging ears getting stuck due to friction, ensuring that the drawer cover can fall smoothly after being pulled out, thereby stably covering the upper opening of the drawer and providing a guarantee for forming a sealed moisturizing space inside the drawer, helping to maintain the high humidity environment required for fruit and vegetable preservation.

[0018] Furthermore, the sloped transition method is more conducive to stress dispersion and reduces stress concentration compared to a structure that "suddenly shrinks in size". When the first and second connecting slopes work together, the bidirectional gradual change makes the overall force on the contact part more uniform, further reducing the risk of the lug breaking or deforming during long-term use (such as repeated drops, vibration and impact).

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the refrigerator cover provided in the embodiment of this application. Figure 1 .

[0022] Figure 2 yes Figure 1 Enlarged view of the center loop ear Figure 1 (The contact portion includes a first connecting slope).

[0023] Figure 3 yes Figure 1 Enlarged view of the center loop ear Figure 2 (The buffer sleeve has been omitted).

[0024] Figure 4This is a schematic diagram of another structure of the ear provided in the embodiment of this application (the contact part includes a first connecting slope and a second connecting slope).

[0025] Figure 5 This is a schematic diagram of the hook and drawer structure provided in the embodiments of this application. Figure 1 .

[0026] Figure 6 yes Figure 5 Enlarged diagram of the center loop.

[0027] Figure 7 This is a schematic diagram of the hook and drawer structure provided in the embodiments of this application. Figure 2 .

[0028] Figure 8 yes Figure 7 Enlarged diagram of the center loop.

[0029] Figure 9 This is a schematic diagram of the hook and drawer structure provided in the embodiments of this application. Figure 3 (Side view).

[0030] Figure 10 yes Figure 9 Enlarged diagram of the center loop.

[0031] Figure label: 1. Cover body; 2. Hanging lug; 21. Connecting section; 22. Contact part; 221. Free end; 222. Contact surface; 223. Clearance surface; 224. First connecting slope; 225. Second connecting slope; 3. Refrigerator guide rail; 31. Limiting groove; 311. Front wall; 312. Top opening; 313. Side opening; 314. Side wall; 3141. First magnetic component; 315. Bottom wall; 4. Drawer; 5. Buffer sleeve; 51. Second magnetic component. Detailed Implementation

[0032] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0033] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "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 only for the convenience of describing the embodiments of this application 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 limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0035] In the embodiments of 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 is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply 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 that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification, as well as the features of different embodiments or examples. "A plurality of" should be understood as two or more.

[0037] A refrigerator cover according to a first aspect embodiment of this application, such as Figures 1 to 3As shown, the refrigerator cover includes: a cover body 1; a hanging ear 2 for cooperating with the limiting groove 31 on the refrigerator guide rail 3 to support the cover body 1; the hanging ear 2 includes a connecting section 21 and a contact part 22, the connecting section 21 is connected to the side of the cover body 1, the contact part 22 is connected to the end of the connecting section 21 away from the cover body 1, the free end 221 of the contact part 22 forms a contact surface 222 and a clearance surface 223, the contact surface 222 is used to cooperate with the front wall 311 of the limiting groove 31.

[0038] The connecting section 21 can partially extend into the limiting groove 31, and the contact part 22 can be entirely located within the limiting groove 31. Ideally, the contact surface 222 does not contact the front wall 311 of the limiting groove 31 (leaving a gap of 1-2mm); however, during the pulling out of the drawer 4, the drawer 4 may cause the refrigerator cover to move, thereby causing the contact surface 222 to contact, rub against, or even get stuck with the front wall 311 of the limiting groove 31. The hanging ears 2 are provided on both sides of the cover body 1, and the number can be set to 4, that is, two on each side.

[0039] The free end 221 of the contact portion 22 is provided with both a contact surface 222 and a clearance surface 223 to reduce the actual contact area with the front wall 311 of the limiting groove 31. In the prior art, when the lug 2 and the front wall 311 of the limiting groove 31 are engaged, the contact area is too large. When the drawer 4 is pulled out, the lid vibrates or shifts, resulting in significant frictional resistance and the lug 2 is prone to getting stuck and unable to fall normally. In this structure, only the contact surface 222 engages with the front wall 311 of the limiting groove 31, while the clearance surface 223 does not contact the front wall 311. This significantly reduces the contact range between the two, lowers the risk of getting stuck due to frictional resistance, and ensures that the lug 2 can fall smoothly after the drawer 4 is pulled out, so that the lid can always accurately cover the upper opening of the drawer 4.

[0040] The stability of the lid covering the drawer 4 opening is crucial for maintaining a high-humidity environment. The connecting section 21 of the hook 2 is securely connected to the side of the lid body 1, providing reliable support and preventing the lid from tilting or shifting due to unstable support. Simultaneously, the contact part 22, through the precise fit between the contact surface 222 and the front wall 311 of the limiting groove 31, restricts the horizontal displacement of the lid, resulting in a tighter fit between the lid and the upper surface of the drawer 4, reducing gaps in the sealed cavity. When the hook 2 is successfully lowered, the lid and drawer 4 form a complete enclosed space, effectively reducing internal moisture loss and creating a consistently stable high-humidity environment for vegetables and fruits, thus improving preservation.

[0041] The connecting section 21 only needs to achieve a stable connection with the cover plate body 1, and the contact part 22 can be designed separately for the matching requirements with the limiting groove 31, without the need to adjust the overall structure of the hanging ear 2.

[0042] According to one embodiment of this application, the side of the contact portion 22 that connects to the connecting segment 21 forms the connecting surface of the contact portion 22; as shown... Figure 2 As shown, in the direction from the connecting surface of the contact portion 22 to the contact surface 222 of the contact portion 22, the cross-sectional dimension of the free end 221 of the contact portion 22 decreases linearly, that is, the clearance surface 223 is a continuous planar or curved surface.

[0043] The linear reduction in cross-section creates a gradient structure for the contact portion 22, ultimately focusing on the interaction between the contact surface 222 and the front wall 311 of the limiting groove 31, significantly reducing the contact area. In existing technologies, the contact area between the lug 2 and the front wall 311 of the limiting groove 31 is too large. When the drawer 4 is pulled out, causing the cover to vibrate or shift, the lug 2 is prone to jamming due to excessive frictional resistance, preventing it from falling properly. The gradient structure makes the contact surface 222 the sole contact area between the lug 2 and the front wall 311. The reduced contact area decreases the probability of the lug 2 jamming due to friction, ensuring that the cover can fall smoothly after the drawer 4 is pulled out. This stably covers the upper opening of the drawer 4, ensuring a sealed, moisturizing space inside the drawer 4 and helping to maintain the high humidity environment required for fruit and vegetable preservation.

[0044] The linearly decreasing structure provides a natural guiding effect for the engagement of the lug 2 and the limiting groove 31. During assembly, the gradually tapering shape of the contact portion 22 from the connecting surface to the contact surface 222 guides the lug 2 to accurately extend into the limiting groove 31 and form a fit with the front wall 311, reducing the requirements for component alignment accuracy during assembly.

[0045] A linearly decreasing cross-sectional change is more conducive to stress dispersion than a sudden decrease (such as directly setting a protrusion). The cross-sectional dimensions of the connection between the contact part 22 and the connecting section 21 (connecting surface) match those of the connecting section 21. Stress can be evenly transferred to the contact surface 222 through the gradual structure, avoiding the stress concentration phenomenon that is prone to occur in a sudden decrease structure, and reducing the risk of breakage or deformation of the lug 2 during long-term use (such as repeated drops and vibrations). The gradual structure has no obvious sharp edges, which can reduce local wear when the lug 2 and the limiting groove 31 collide slightly, extend the service life of the lug 2 and the limiting groove 31, and ensure that the cover plate can stably perform its moisturizing function for a long time.

[0046] According to one embodiment of this application, such as Figure 2 and Figure 3 As shown, the clearance surface 223 includes a first connecting slope 224, which connects the connecting surface and the contact surface 222, such that the dimension of the contact surface 222 in the first direction is smaller than that of the connecting surface; or, as shown... Figure 4As shown, the clearance surface 223 includes a first connecting slope 224 and a second connecting slope 225. Both the first connecting slope 224 and the second connecting slope 225 connect the connecting surface and the contact surface 222, so that the dimensions of the contact surface 222 in the first direction and the second direction are smaller than those of the connecting surface.

[0047] like Figure 2 and Figure 3 As shown, when the clearance surface 223 only includes the first connecting inclined surface 224, the number of the first connecting inclined surfaces 224 can be two, arranged symmetrically on the left and right, so that the contact surface 222 is centered on the left and right. Figure 4 As shown, when the avoidance surface 223 includes a first connecting slope 224 and a second connecting slope 225, the number of the first connecting slope 224 can be two, arranged symmetrically from left to right, so that the contact surface 222 is centered from left to right; the number of the second connecting slope 225 can be two, arranged symmetrically from top to bottom, so that the contact surface 222 is centered both from top to bottom.

[0048] When the clearance surface 223 only contains the first connecting inclined surface 224, the inclined shape of the inclined surface along the first direction can guide the hanging ear 2 to accurately extend into the limiting groove 31 during assembly, reducing the requirements for the alignment accuracy of the parts; when the first connecting inclined surface 224 and the second connecting inclined surface 225 are set at the same time, the inclined surfaces in the two directions form a bidirectional guide, and even if there are minor machining errors in the limiting groove 31 (such as the position offset of the front wall 311 or the deviation of the groove size), the free end 221 can adapt to the error range through the transition characteristics of the bidirectional inclined surface, ensuring effective cooperation with the front wall 311 of the limiting groove 31.

[0049] Compared to a structure that "suddenly shrinks in size", the sloped transition method is more conducive to stress dispersion and reduces stress concentration. When the first connecting slope 224 and the second connecting slope 225 work together, the bidirectional gradual change makes the contact part 22 more evenly stressed, further reducing the risk of the lug 2 breaking or deforming during long-term use (such as repeated drops, vibration impacts).

[0050] According to one embodiment of this application, the first direction is horizontal to reduce the width of the contact surface 222 in the horizontal direction. The first direction is perpendicular to the second direction, which is vertical.

[0051] The horizontal direction is the primary direction for pulling out drawer 4, and also the core direction for the relative displacement of the cover plate and the hanging lug 2 within the limiting groove 31. Reducing the width of the contact surface 222 in the horizontal direction can significantly reduce the contact area between the hanging lug 2 and the front wall 311 of the limiting groove 31 in the horizontal direction. In the prior art, the horizontal width of the contact surface 222 is too large. When drawer 4 is pulled out, the cover plate easily causes the hanging lug 2 to shift slightly in the horizontal direction, resulting in greater frictional resistance between the contact surface 222 and the front wall 311 of the limiting groove 31, which in turn causes the hanging lug 2 to get stuck when falling vertically. Reducing the width in the horizontal direction shrinks the area of ​​concentrated frictional resistance, reduces frictional interference between the hanging lug 2 and the front wall 311 of the limiting groove 31, ensures that the cover plate can fall smoothly in the vertical direction, stably cover the upper opening of drawer 4, and provide a guarantee for forming a sealed and humidified space inside drawer 4, helping to maintain the high humidity environment required for fruit and vegetable preservation.

[0052] In some cases, curved chamfers can be provided at both ends of the horizontal direction of the contact surface 222. The curvature of the curved chamfers is designed to smoothly connect with the side of the contact part 22. The curved chamfers can eliminate the sharp edges of the contact surface 222 in the horizontal direction, preventing the edge of the lug 2 from rigidly scraping against the front wall 311 of the limiting groove 31 when it shifts in the horizontal direction, further reducing frictional resistance and reducing the risk of jamming; at the same time, the curved structure can disperse the local pressure during contact, reduce edge wear, and extend the service life of the contact surface 222.

[0053] According to a second aspect of this application, a refrigerator includes: a cabinet, a drawer 4 provided inside the cabinet, the drawer 4 having an upper opening; a limiting groove 31 provided inside the cabinet; and the aforementioned refrigerator cover covering the upper opening of the drawer 4 to form a closed cavity with the drawer 4.

[0054] The sealed cavity formed by the refrigerator lid covering the upper opening of drawer 4 is the core foundation for maintaining a high-humidity environment. In the prior art, the refrigerator lid's hanging ears 2 are prone to jamming, resulting in improper installation of the lid and gaps in the sealed cavity, allowing moisture to easily escape. However, the refrigerator provided in this embodiment uses the aforementioned refrigerator lid, where the limiting groove 31 and the hanging ears 2 of the refrigerator lid form a stable fit. This ensures that the lid always falls smoothly and accurately covers the upper opening of drawer 4 after it is pulled out, reducing gaps and improving the airtightness of the sealed cavity. This reduces the diffusion of internal moisture outward, providing a continuously stable high-humidity environment for preserving fruits and vegetables.

[0055] The lid always falls smoothly and precisely covers the top opening of drawer 4 to form a closed cavity. The closed cavity reduces the outflow of moisture from drawer 4 by blocking the flow of air between the inside and outside. When fruits and vegetables are placed in drawer 4, the moisture in the closed cavity is not easily lost, and the humidity is maintained within a range that is conducive to the preservation of fruits and vegetables. This reduces problems such as wilting and deterioration in taste caused by moisture loss, and extends the shelf life of fruits and vegetables.

[0056] The limiting groove 31 provides stable support and positioning reference for the refrigerator cover. When the drawer 4 is pulled out, the hanging ears 2 of the refrigerator cover move along the limiting groove 31. The limiting groove 31 can constrain the displacement direction of the hanging ears 2, preventing the cover from shifting significantly as the drawer 4 is pulled out. At the same time, the cooperation between the limiting groove 31 and the hanging ears 2 reduces the requirements for the alignment accuracy of the components during the installation of the cover. Even if there is a slight deviation in the installation of the drawer 4 inside the cabinet, the limiting groove 31 can still guide the hanging ears 2 to drive the cover to accurately cover the opening of the drawer 4, improving the smoothness of component assembly and use.

[0057] According to one embodiment of this application, such as Figure 5 As shown, a refrigerator guide rail 3 for sliding drawer 4 is provided on the side wall 314 of the cabinet, and a limit groove 31 is provided on the refrigerator guide rail 3.

[0058] According to one embodiment of this application, the limiting groove 31 has an upper opening 312 and a side opening 313, and the hook 2 extends into the limiting groove 31 through the side opening 313; the side wall 314 of the bottom wall 315 connecting the upper opening 312 and the limiting groove 31 is inclined, so that the width of the bottom wall 315 of the limiting groove 31 is greater than the width of the upper opening 312.

[0059] Compared to a vertical sidewall 314, the beveled sidewall 314 significantly reduces the frictional resistance and the probability of jamming during the movement of the lug 2. In the prior art, when the limiting groove 31 of the vertical sidewall 314 contacts the lug 2, it is a rigid "surface-to-surface" fit. When the drawer 4 is pulled out and the lug 2 moves in the groove, the lug 2 is prone to jamming due to dimensional deviations or small foreign objects, preventing the cover from falling smoothly. However, the beveled sidewall 314 makes the inner wall of the limiting groove 31 gradually change shape. When the lug 2 extends into or moves in the groove, the outer peripheral surface of the lug 2 contacts the sidewall 314 in a "line-to-surface" contact manner, reducing the possibility of the lug 2 getting stuck. This ensures that the lug 2 drives the cover to fall stably, allowing the cover to accurately cover the upper opening of the drawer 4, providing a basis for forming a sealed and moisture-retaining space. Furthermore, the bottom wall 315 of the limiting groove 31 is wider than the upper opening 312, making the limiting groove 31 have an overall shape that is "wider at the bottom and narrower at the top". This can, to a certain extent, restrict the hanging ear 2 from coming out of the limiting groove 31 and ensure the reliability of the refrigerator cover installation.

[0060] A smooth fit enhances the airtightness of the closed cavity. The lugs 2 move smoothly within the limiting grooves 31 of the inclined sidewalls 314, ensuring that the cover plate always covers the drawer 4 opening promptly and accurately after the drawer 4 is pushed back, reducing gaps caused by the cover plate not being in place. With improved airtightness of the closed cavity, moisture inside the drawer 4 is less likely to escape, maintaining humidity within a range conducive to fruit and vegetable preservation. This reduces problems such as wilting and decreased taste caused by moisture loss in fruits and vegetables, extends the shelf life of fruits and vegetables, and improves the practical performance of the refrigerator.

[0061] According to one embodiment of this application, such as Figure 2 As shown, the refrigerator lid also includes a buffer sleeve 5 fitted around the outer periphery of the hanging ear 2. The buffer sleeve 5 can be fitted onto the outside of the hanging ear 2 by an interference fit. The buffer sleeve 5 does not obstruct the free end 221 of the hanging ear 2; in other words, the free end 221 of the hanging ear 2 extends out of the buffer sleeve 5. The buffer sleeve 5 can be made of an elastic material, such as silicone or rubber.

[0062] The elastic properties of the buffer sleeve 5 can directly weaken the impact force of the collision between the hanging ear 2 and the side wall 314 of the limiting groove 31. The buffer sleeve 5 absorbs the collision energy through its own deformation, transforming rigid collisions into flexible contact, significantly reducing the noise level generated by the collision, making the refrigerator run more quietly, and improving user comfort.

[0063] The buffer sleeve 5 prevents direct contact between the lug 2 and the side wall 314 of the limiting groove 31, reducing mechanical wear. During long-term operation (such as repeated pulling of the drawer 4 and frequent closing of the cover), rigid contact between the lug 2 and the limiting groove 31 can easily lead to scratches and deformation on their surfaces, affecting the fitting accuracy. The buffer sleeve 5, acting as an isolation layer, transforms direct friction into indirect friction between the buffer sleeve 5 and the limiting groove 31. Furthermore, the buffer sleeve 5 has good wear resistance, slowing down the wear rate of the lug 2 and the side wall 314 of the limiting groove 31, extending their service life, and ensuring long-term stable operation of the structure. After prolonged use, the buffer sleeve 5 can be easily replaced, improving the user experience.

[0064] The buffer sleeve 5 is fitted around the outer periphery of the hanging ear 2, eliminating the need for significant modifications to the original structure of the hanging ear 2 and the limiting groove 31. Functional optimization can be achieved simply by adding components. Whether it is the existing hanging ear 2 structure (including the connecting section 21 and the contact part 22) or the limiting groove 31 of different sizes, the buffer sleeve 5 can be adapted by adjusting its inner diameter and length, reducing the cost and difficulty of technical modification and facilitating upgrades and iterations based on existing refrigerator products.

[0065] According to one embodiment of this application, a first magnetic attractor (not shown in the figure) is provided on the bottom wall 315 of the limiting groove 31, and a second magnetic attractor is provided on the side of the buffer sleeve 5 facing the bottom wall 315 of the limiting groove 31. The first magnetic attractor and the second magnetic attractor cooperate to constrain the position of the hanging ear 2.

[0066] The magnetic attachment effectively constrains the displacement of the hanging ear 2 within the limiting groove 31, reducing unexpected shaking caused by vibration or the pulling of the drawer 4. The attraction between the first and second magnetic attachments stably attaches the hanging ear 2 to the designated position on the bottom wall 315 of the limiting groove 31, reducing the horizontal and vertical movement of the hanging ear 2. This ensures that the hanging ear 2 drives the cover plate to accurately cover the upper opening of the drawer 4, reducing the probability of gaps caused by cover plate misalignment and laying the foundation for maintaining a high-humidity and freshness-preserving environment inside the drawer 4.

[0067] The magnetic attraction helps the hook 2 fall smoothly to the bottom wall 315 of the limiting groove 31, reducing the risk of jamming. When the drawer 4 is pulled out, the cover moves the hook 2 towards the bottom wall 315 of the limiting groove 31 under the action of gravity. If there is slight frictional resistance between the hook 2 and the side wall 314 of the limiting groove 31, the hook 2 may not fall completely. The attraction between the first and second magnetic components can form a downward auxiliary pulling force to help the hook 2 overcome frictional resistance, ensuring that the hook 2 falls stably and avoiding the cover not being installed properly due to the hook 2 suspending. At the same time, the magnetic attraction provides "implicit guidance" for the movement of the hook 2. Even if the hook 2 is slightly tilted during the falling process, the magnetic attraction can guide the hook 2 to correct its position, further improving the smoothness of movement.

[0068] According to one embodiment of this application, such as Figure 10 As shown, a first magnetic element 3141 is provided on the side wall 314 of the limiting groove 31, and a second magnetic element 51 is provided on the surface of the buffer sleeve 5 facing the side wall 314 of the limiting groove 31. The first magnetic element 3141 and the second magnetic element 51 repel each other to drive the ear 2 to reset.

[0069] Magnetic repulsion can actively correct the offset of the hook 2, preventing it from getting stuck. During the pulling of drawer 4, when the cover moves the hook 2 within the limiting groove 31, vibration, friction, and other factors can easily cause the hook 2 to shift to one side. If it cannot return to its original position after shifting, it will cause excessive friction between the hook 2 and the side wall 314 of the limiting groove 31, or even get stuck and unable to fall. However, the repulsive force between the first magnetic component 3141 and the second magnetic component 51 will generate a reverse thrust when the hook 2 shifts, pushing the hook 2 back to the preset position within the limiting groove 31. This active reset can be achieved without relying on external force intervention, ensuring that the hook 2 always moves along the correct trajectory and reducing the risk of getting stuck.

[0070] The precise repositioning of the hook 2 indirectly improves the fit between the lid and the drawer 4 opening. If the hook 2 shifts, the lid will shift accordingly, preventing it from completely covering the drawer 4 opening and creating gaps in the sealed cavity, affecting moisture retention. After the magnetic repulsion drives the hook 2 to reposition, the lid precisely aligns with the top opening of the drawer 4, reducing gaps, enhancing the airtightness of the sealed cavity, slowing moisture loss, and maintaining a stable high-humidity environment for fruit and vegetable preservation, preventing wilting and spoilage due to insufficient humidity.

[0071] The repulsive force reduces the continuous friction between the lug 2 and the side wall 314 of the limiting groove 31. If the lug 2 is in prolonged contact with the side wall 314 after offset, continuous friction will cause wear on the components, affecting the fitting accuracy. The magnetic repulsive force forms an "implicit support" between the lug 2 and the side wall 314, preventing them from sticking together for a long time and reducing frictional loss. At the same time, the magnitude of the repulsive force can be controlled by selecting components with different magnetic strengths, which can ensure the push force required for reset without causing the lug 2 to shake violently during movement due to excessive repulsive force, thus balancing the reset effect and the smoothness of movement.

[0072] According to one embodiment of this application, such as Figure 10 As shown, along the depth direction of the limiting groove 31, the height of the first magnetic element 3141 is higher than the height of the second magnetic element 51, so that the hook 2 is constrained to the bottom wall 315 of the limiting groove 31 by the repulsive force of the first magnetic element 3141 and the second magnetic element 51.

[0073] The repulsive force generated by the height difference effectively pushes the hook 2 to conform to the bottom wall 315 of the limiting groove 31. In the prior art, the hook 2 falls only by gravity. If it encounters slight friction from the side wall 314 of the limiting groove 31 or is obstructed by small foreign objects, it is easy to hover and fail to fully settle, causing the cover to tilt and affecting the sealing of the drawer 4 opening. However, when the first magnetic component 3141 is higher than the second magnetic component 51, the repulsive force generated by the two is not completely horizontal, but forms a downward component along the depth direction of the limiting groove 31. This component, combined with the weight of the hook 2 itself, overcomes the resistance to movement, ensuring that the hook 2 falls stably to the bottom wall 315, avoiding the hovering problem, and providing basic support for the cover to accurately cover the drawer 4 opening.

[0074] The complete placement of the hanging ear 2 reduces the gap between the lid and the drawer 4 opening. The height difference design between the first magnetic component 3141 and the second magnetic component 51, through the repulsive force component, constrains the hanging ear 2 to the bottom wall 315, ensuring that the lid remains horizontal and tightly fitted to the edge of the drawer 4 opening. This enhances the airtightness of the enclosed cavity, reduces moisture loss, and maintains a continuous and stable high-humidity environment for preserving fruits and vegetables, preventing them from wilting and losing their flavor due to humidity fluctuations.

[0075] The repulsive force component guides the hook 2 to move smoothly along the limiting groove 31, reducing the risk of jamming. When the drawer 4 pulls out and moves the hook 2 up and down within the limiting groove 31, the repulsive force component generated by the height difference always forms a "downward guiding force" on the hook 2. Even if the hook 2 deviates slightly due to vibration, this guiding force can still guide the hook 2 to move along the correct trajectory towards the bottom wall 315, avoiding continuous friction between the hook 2 and the side wall 314 of the limiting groove 31. At the same time, the magnitude of the repulsive force component can be controlled by adjusting the height difference of the magnetic component, which can ensure the force to push the hook 2 into place without the hook 2 being obstructed due to excessive repulsive force, thus balancing the stability of placement and the smoothness of movement.

[0076] According to one embodiment of this application, the front wall 311 of the limiting groove 31 is inclined (not shown in the figure); along the downward direction of the depth of the limiting groove 31, the horizontal distance between the front wall 311 of the limiting groove 31 and the contact surface 222 of the contact portion 22 gradually increases linearly. The inclined arrangement of the front wall 311 of the limiting groove 31 can refer to the inclined arrangement of the side wall 314 of the limiting groove 31 to reduce the risk of jamming.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be covered within the scope of the claims of this application.

Claims

1. A refrigerator cover, characterized in that, include: Cover plate body (1); The hanging ear (2) is used to cooperate with the limiting groove (31) on the refrigerator guide rail (3) to support the cover body (1); the hanging ear (2) includes a connecting section (21) and a contact part (22). The connecting section (21) is connected to the side of the cover body (1), and the contact part (22) is connected to the end of the connecting section (21) away from the cover body (1). The free end (221) of the contact part (22) forms a contact surface (222) and a clearance surface (223). The contact surface (222) is used to cooperate with the front wall (311) of the limiting groove (31).

2. The refrigerator cover according to claim 1, characterized in that, The side of the contact portion (22) that is connected to the connecting segment (21) forms the connecting surface of the contact portion (22); In the direction from the connecting surface of the contact portion (22) to the contact surface (222) of the contact portion (22), the cross-sectional dimension of the free end (221) of the contact portion (22) decreases linearly.

3. The refrigerator cover according to claim 2, characterized in that, The clearance surface (223) includes a first connecting ramp (224), which connects the connecting surface and the contact surface (222), such that the dimension of the contact surface (222) in a first direction is smaller than that of the connecting surface; or The avoidance surface (223) includes a first connecting slope (224) and a second connecting slope (225). Both the first connecting slope (224) and the second connecting slope (225) connect the connecting surface and the contact surface (222), such that the dimensions of the contact surface (222) in the first direction and the second direction are smaller than those of the connecting surface.

4. The refrigerator cover according to claim 3, characterized in that, The first direction is horizontal, so as to reduce the width dimension of the contact surface (222) in the horizontal direction.

5. A refrigerator, characterized in that, include: The box body is provided with a drawer (4) inside the box body, and the drawer (4) has an opening at the top; the box body is provided with the limiting groove (31). The refrigerator cover as described in any one of claims 1 to 4 covers the upper opening of the drawer (4) to form a closed cavity with the drawer (4).

6. The refrigerator according to claim 5, characterized in that, The limiting groove (31) has an upper opening (312) and a side opening (313), and the hanging ear (2) extends into the limiting groove (31) through the side opening (313); The side wall (314) of the bottom wall (315) connecting the upper opening (312) and the limiting groove (31) is inclined, so that the width of the bottom wall (315) of the limiting groove (31) is greater than the width of the upper opening (312).

7. The refrigerator according to claim 5, characterized in that, It also includes a buffer sleeve (5) fitted around the outer periphery of the ear (2).

8. The refrigerator according to claim 7, characterized in that, The bottom wall (315) of the limiting groove (31) is provided with a first magnetic suction member, and the side of the buffer sleeve (5) facing the bottom wall (315) of the limiting groove (31) is provided with a second magnetic suction member. The first magnetic suction member and the second magnetic suction member cooperate to constrain the position of the hanging ear (2).

9. The refrigerator according to claim 7, characterized in that, The sidewall (314) of the limiting groove (31) is provided with a first magnetic element (3141), and the surface of the buffer sleeve (5) facing the sidewall (314) of the limiting groove (31) is provided with a second magnetic element (51). The first magnetic element (3141) and the second magnetic element (51) repel each other to drive the ear (2) to reset.

10. The refrigerator according to claim 9, characterized in that, Along the depth direction of the limiting groove (31), the height of the first magnetic element (3141) is higher than the height of the second magnetic element (51) so that the hook (2) is constrained to the bottom wall (315) of the limiting groove (31) by the repulsive force of the first magnetic element (3141) and the second magnetic element (51).

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