Sealing structure and housing assembly

Abstract

This utility model discloses a sealing structure and housing assembly, relating to the field of sealing components. The sealing structure includes: a connecting seat; a first sealing rib disposed on one side of the connecting seat in a first direction, the first sealing rib having a first end extending along the first direction and away from the connecting seat; and a second sealing rib disposed on the connecting seat, the first sealing rib and the second sealing rib being located on the same side of the connecting seat and spaced apart along a second direction, the first direction being perpendicular to the second direction, the second sealing rib having a second end extending along the first direction and away from the connecting seat, the distance between the first end and the connecting seat being less than the distance between the second end and the connecting seat.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to a sealing structure and housing assembly. Background Technology

[0002] Most consumer electronics products on the market, such as smart wearables and mobile smart electronic products, must meet the IPX7 or higher waterproof rating. The reliability of the waterproof design is usually a key technical challenge to consider during the research and development process. Common waterproof design solutions include silicone ring sealing, applying waterproof adhesive, or foam.

[0003] However, traditional sealing ribs are prone to gaps at the sealing interface due to dimensional deviations, leading to sealing failure. They also have low tolerance for assembly errors, requiring secondary assembly, which increases costs and depends on the precision of manual assembly. Utility Model Content

[0004] The main purpose of this utility model is to provide a sealing structure that aims to solve the technical problems of traditional seals being prone to sealing failure and increased costs.

[0005] To achieve the above objectives, the sealing structure proposed in this utility model includes:

[0006] Connector;

[0007] A first sealing rib is disposed on one side of the connecting seat in a first direction, the first sealing rib having a first end extending along the first direction and away from the connecting seat; and

[0008] A second sealing rib is disposed on the connecting seat. The first sealing rib and the second sealing rib are located on the same side of the connecting seat, and the first sealing rib and the second sealing rib are spaced apart along a second direction. The first direction and the second direction are perpendicular to each other. The second sealing rib has a second end extending along the first direction and away from the connecting seat. The distance between the first end and the connecting seat is less than the distance between the second end and the connecting seat.

[0009] This utility model also proposes a housing assembly, including the sealing structure as described above;

[0010] The upper cover, wherein the sealing structure is disposed on the upper cover; and

[0011] The bottom shell has a cavity, and the top cover is used to seal the cavity. The end of the sealing structure away from the top cover is in sealing contact with the inner wall of the cavity. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 A partial cross-sectional view of an embodiment of the sealing structure provided by this utility model;

[0014] Figure 2 An exploded structural diagram of an embodiment of the housing assembly provided by this utility model;

[0015] Figure 3 A partial cross-sectional structural schematic diagram of an embodiment of the housing assembly provided by this utility model;

[0016] Figure 4 A schematic diagram of the sealing structure in an embodiment of the housing assembly provided by this utility model.

[0017] Explanation of icon numbers:

[0018] 100. Connecting seat; 110. Transition groove;

[0019] 200, First sealing rib; 210, First end;

[0020] 300. Second sealing rib; 310. Second end;

[0021] 10. Top cover; 11. Connecting part; 12. Slot;

[0022] 20. Bottom shell; 21. Cavity.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] In existing technologies, traditional sealing ribs are prone to gaps at the sealing interface due to dimensional deviations, leading to sealing failure. They also have low tolerance for assembly errors, requiring secondary assembly, which increases costs and depends on the precision of manual assembly.

[0028] This utility model proposes a sealing structure.

[0029] Please see Figure 1 In one embodiment of the present invention, the sealing structure includes: a connecting seat 100, a first sealing rib 200, and a second sealing rib 300; wherein, the first sealing rib 200 is disposed on one side of the connecting seat 100 in a first direction, and the first sealing rib 200 has a first end portion 210 extending along the first direction and away from the connecting seat 100; the second sealing rib 300 is disposed on the connecting seat 100, the first sealing rib 200 and the second sealing rib 300 are located on the same side of the connecting seat 100, and the first sealing rib 200 and the second sealing rib 300 are spaced apart along a second direction, the first direction and the second direction are perpendicular to each other, the second sealing rib 300 has a second end portion 310 extending along the first direction and away from the connecting seat 100, and the distance between the first end portion 210 and the connecting seat 100 is less than the distance between the second end portion 310 and the connecting seat 100.

[0030] In this embodiment, it should be noted that, with Figure 1For example, the first direction is horizontal, and the second direction is vertical. Additionally, the sealing structure can be annular or adapted to the shape of different products. The first sealing rib 200 and the second sealing rib 300 are fixedly connected to the same side wall of the connecting seat 100, and the first sealing rib 200 and the second sealing rib 300 are spaced apart in the vertical direction. The first end 210 is the end of the first sealing rib 200 furthest from the connecting seat 100, and the distance between the first end 210 and the connecting seat 100 can be understood as the extension length of the first sealing rib 200. The second end 310 is the end of the second sealing element furthest from the connecting seat 100, and the distance between the second end 310 and the connecting seat 100 can be understood as the extension length of the second sealing rib 300. That is, the extension length of the first sealing rib 200 is less than the extension length of the second sealing rib 300. The first sealing rib 200 and the second sealing rib 300 have different lengths, which can reduce assembly resistance, facilitate installation, and improve the tolerance of assembly errors, adapting to different product seals. By sealing with two layers of sealing ribs, the reliance on manual assembly precision can be reduced, and assembly efficiency can be improved.

[0031] This utility model's technical solution employs a first sealing rib 200 and a second sealing rib 300 arranged side-by-side on one side of the connecting seat 100, with the first sealing rib 200 and the second sealing rib 300 spaced apart. This achieves a double-layer seal, increasing sealing assurance. If the sealing effect of one sealing rib fails, it can be replaced promptly, thus preventing the entire sealing structure from failing to seal. Furthermore, the distance between the first end 210 of the first sealing rib 200 and the connecting seat 100 is smaller than the distance between the second sealing rib 300 and the connecting seat 100. The two sizes of sealing ribs facilitate sealing assembly and avoid gaps at the sealing interface, reducing reliance on manual assembly precision. In addition, during the implementation process, products equipped with this sealing structure were tested and all passed the IPX7 waterproof test, i.e., they withstood a 2-meter water depth for 60 minutes.

[0032] In one embodiment, the connecting seat 100, the first sealing rib 200, and the second sealing rib 300 are integrally formed. In specific implementation, in order to improve the overall strength of the sealing structure, an integral forming method is adopted to obtain the sealing structure.

[0033] Furthermore, the sealing structure is made of an elastic material with a Shore A hardness of 80-95. Specifically, the elastic material can be TPU, with a Shore A hardness of 80-95, giving the sealing structure a certain strength and ensuring its sealing effect, thus improving its lifespan. This waterproof structure has an effective temperature range of -40°C to 95°C, making it adaptable to various environments and maintaining good sealing performance even in harsh conditions.

[0034] In one embodiment, in the first direction, the distance between the first end 210 and the connecting seat 100 is 9mm-1.1mm; in the first direction, the distance between the second end 310 and the connecting seat 100 is 1.0mm-1.2mm.

[0035] In the specific implementation process, as described above, the extension length of the first sealing rib 200 is less than the extension length of the second sealing rib 300, and the two are arranged in a stepped manner in the vertical direction. Specifically, in this embodiment, when the distance between the first end 210 and the connecting seat 100 is 1.0 mm, the corresponding distance between the second end 310 and the connecting seat 100 can be 1.1 mm, which ensures the sealing effect while facilitating disassembly and assembly.

[0036] In one embodiment, the first sealing rib 200 extends a gradually decreasing distance in the second direction from the connecting seat 100 to the first end 210; the second sealing rib 300 extends a gradually decreasing distance in the second direction from the connecting seat 100 to the second end 310.

[0037] In this embodiment, it can be understood that the width is greatest at the end where the first sealing rib 200 connects to the connecting portion 11. This width can be understood as, for example... Figure 1 As shown, the width of the vertically extending length L gradually decreases from the connecting portion 11 to the first end 210. This facilitates installation while maintaining a good sealing effect, and also ensures that the first sealing rib 200 has sufficient strength, so that it always abuts against the surface to be sealed under its own elasticity, maintaining a good sealing effect. Correspondingly, the width of the second sealing rib 300 is greatest at the end connected to the connecting portion 11, and gradually decreases in width towards the second end 310, which will not be described in detail here.

[0038] In one embodiment, a transition groove 110 is provided on the side wall of the connecting seat 100. The transition groove 110 is provided between the first sealing rib 200 and the second sealing rib 300 and on the side of the first sealing rib 200 away from the second sealing rib 300. The inner wall contour of the transition groove 110 is arc-shaped.

[0039] In practical implementation, it is understandable that when the ends of the first sealing rib 200 and the second sealing rib 300 abut against the product to achieve a seal, and during the disassembly and assembly of the corresponding product, the connection between the first sealing rib 200 and the second sealing rib 300 and the connecting part 11 will bend. During repeated disassembly and assembly and during long-term bending, stress concentration may easily lead to breakage. In this embodiment, a transition groove 110 is provided on the side wall of the connecting part 11. When the first sealing rib 200 and the second sealing rib 300 bend, they can be transitioned through the transition groove 110, avoiding stress concentration problems in the first sealing rib 200 and the second sealing rib 300 and improving the life of the sealing assembly.

[0040] Understandably, when the sealing structure is installed on the product, such as when the upper cover 10 is installed on the bottom shell 20 to achieve a seal, the installation proceeds from top to bottom. The first sealing rib 200 and the second sealing rib 300 generally bend upwards. The transition groove 110 is located above the first sealing rib 200 and the second sealing rib 300, providing a better transition. In practical implementation, the radius R of the arc-shaped contour of the inner wall of the transition groove 110 is ≥0.3mm, avoiding stress concentration without affecting the overall strength of the sealing assembly.

[0041] refer to Figures 2 to 4 As shown, this utility model also proposes a housing assembly, which includes a sealing structure as described above, an upper cover 10, and a bottom shell 20. The specific structure of the sealing structure is as described in the above embodiments. Since this housing assembly adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The sealing structure is located on the upper cover 10, and the bottom shell 20 has a cavity 21. The upper cover 10 is used to seal the cavity 21, and the end of the sealing structure away from the upper cover 10 is in sealing contact with the inner wall of the cavity 21.

[0042] In the specific implementation process, the upper cover 10 is used to seal the cavity 21. The sealing structure is located between the upper cover 10 and the bottom shell 20, and is arranged around the upper cover 10, and is adapted to the upper cover 10 and the inner wall of the cavity 21. When the upper cover 10 is installed onto the bottom shell 20, one end of the sealing structure is fixedly connected to the upper cover 10, and the other end is sealed and pressed against the inner wall of the cavity 21, thereby achieving the sealing of the cavity 21.

[0043] refer to Figure 3 As shown, in one embodiment, the upper cover 10 includes a connecting portion 11 extending into the cavity 21, a sealing structure is sleeved on the outer periphery of the connecting portion 11, the connecting portion 11 has a slot 12, the connecting seat 100 of the sealing structure is fixedly disposed in the slot 12, and at least part of the side of the connecting seat 100 having a first sealing rib 200 and a second sealing rib 300 extends to the outside of the slot 12.

[0044] The connecting portion 11 extends into the cavity 21. A groove is formed on the side wall opposite to the side wall of the cavity 21, and the sealing structure is installed in the groove. Specifically, the connecting portion 11 of the sealing structure is fixedly connected to the groove, such as by bonding, injection molding, or other connection methods. This embodiment is not limited, as long as the sealing structure does not fall off. In this embodiment, the connecting portion 11 is fixedly connected to the groove, and the first sealing rib 200 and the second sealing element extend out of the groove, with their ends sealingly abutting against the inner side wall of the cavity 21, preventing gaps between the connecting portion 11 and the inner side wall of the cavity 21 of the bottom shell 20, thereby achieving a seal in the cavity 21.

[0045] In one embodiment, the sealing structure is injection molded to the upper cover 10. In practice, the upper cover 10 is injection molded, and the sealing ring is formed in a groove within the upper cover 10 via double-injection molding, thus achieving the installation of the sealing ring. By employing a double-layer sealing structure, an additional layer of waterproofing is provided, enhancing the waterproof reliability of the housing components. Furthermore, it is easy to disassemble and assemble without affecting the overall waterproof structure or other functions of the device.

[0046] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the inventive concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A seal structure, characterized by, include: Connector; A first sealing rib is disposed on one side of the connecting seat in a first direction, the first sealing rib having a first end extending along the first direction and away from the connecting seat; and A second sealing rib is disposed on the connecting seat. The first sealing rib and the second sealing rib are located on the same side of the connecting seat, and the first sealing rib and the second sealing rib are spaced apart along a second direction. The first direction and the second direction are perpendicular to each other. The second sealing rib has a second end extending along the first direction and away from the connecting seat. The distance between the first end and the connecting seat is less than the distance between the second end and the connecting seat.

2. The seal structure of claim 1, wherein The connecting seat, the first sealing rib, and the second sealing rib are integrally formed.

3. The seal structure of claim 2, wherein, The sealing structure is made of an elastic material with a hardness of Shore A 80-95.

4. The seal structure of claim 1, wherein In the first direction, the distance between the first end and the connecting seat is 9mm-1.1mm; and / or, In the first direction, the distance between the second end and the connecting seat is 1.0mm-1.2mm.

5. The seal structure of claim 1, wherein In the direction from the connecting seat to the first end, the extension distance of the first sealing rib in the second direction gradually decreases; and / or, From the connecting seat to the second end, the extension distance of the second sealing rib in the second direction gradually decreases.

6. The seal structure of claim 1, wherein The side wall of the connecting seat is provided with a transition groove. The transition groove is provided between the first sealing rib and the second sealing rib, and on the side of the first sealing rib away from the second sealing rib. The inner wall contour of the transition groove is arc-shaped.

7. The seal structure of claim 6, wherein The radius R of the arc-shaped profile of the inner wall of the transition groove is ≥0.3mm.

8. A housing assembly characterized by, include: The sealing structure as described in any one of claims 1-7; The sealing structure is disposed on the upper cover; as well as The bottom shell has a cavity, and the top cover is used to seal the cavity. The end of the sealing structure away from the top cover is in sealing contact with the inner wall of the cavity.

9. The housing assembly of claim 8, wherein, The top cover includes a connecting portion extending into the cavity, the sealing structure is sleeved on the outer periphery of the connecting portion, the connecting portion has a slot, the connecting seat of the sealing structure is fixedly disposed in the slot, and at least part of one side of the connecting seat having a first sealing rib and a second sealing rib extends to the outside of the slot.

10. The housing assembly of claim 9, wherein, The sealing structure is injection molded to the upper cover.

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