Waterproof structure of connector
The connector waterproof structure, which combines upper and lower plastic caps and uses a waterproof ring for compression sealing, solves the problems of high cost and poor waterproof effect of existing connector waterproof structures, achieves high-precision waterproof and dustproof effect, and reduces manufacturing costs.
Patent Information
- Application Number
- CN202422050265.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-08-22
AI Technical Summary
Existing waterproof connector structures are costly to manufacture, have poor waterproof performance, and are difficult to control in terms of manufacturing precision, thus failing to meet the waterproof and dustproof requirements of larger connectors.
The product is covered by a combination of upper and lower plastic covers, and the entire waterproof shell is formed by ultrasonic welding or adhesive bonding. Waterproof rings are set in certain areas to squeeze and seal the shell, which enhances the waterproof and dustproof effect.
This achieves high-precision waterproof and dustproof performance for larger connectors, reduces manufacturing costs, and improves waterproofing.
Smart Images

Figure CN223502260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector structure technology, and in particular to a waterproof connector structure. Background Technology
[0002] A connector is a structure used to provide a detachable electrical connection between circuits or devices. Its primary function is to achieve electrical connection and signal transmission between electronic devices, while also providing additional functions such as mechanical connection, electromagnetic compatibility, and thermal management. The design and manufacture of connectors need to consider various factors to meet the requirements of different application scenarios. In certain special applications, to prevent water and dust from entering the entire device and causing potential hazards such as inability to power on, functional failure, or short circuits, the connector portion needs to be waterproofed and dustproofed. Currently, the industry generally adopts the following practices for waterproofing connectors:
[0003] 1. Metal powder injection molding (MIM) shell + waterproof adhesive + waterproof gasket: This solution is relatively expensive. For some relatively large products, the larger the area, the more difficult it is to control the flatness and warpage of the molded part. The amount of waterproof adhesive used is also large, resulting in lower production efficiency.
[0004] 2. For tray-type products, a waterproof rubber ring is added directly to the tray to prevent interference with the outer casing, achieving a waterproof effect. However, even with the tray removed, there is still a risk of water and dust entering the entire machine.
[0005] Existing waterproof connector structures cannot meet the waterproof requirements of some larger connectors (such as card socket connectors). Therefore, it is necessary to develop a connector waterproof structure with better waterproof and dustproof performance, improve the accuracy of dustproof and waterproof protection, and reduce manufacturing costs. Utility Model Content
[0006] This utility model aims to at least solve the technical problems existing in the prior art, namely, "high manufacturing cost, poor waterproof effect, and difficulty in controlling manufacturing precision of existing waterproof connector structures, which cannot meet the further requirements for waterproof and dustproof protection." To this end, this utility model proposes a waterproof connector structure that, based on a conventional connector, uses an upper and lower plastic cover combination to cover the product from all sides. Partially, it is then firmly bonded using ultrasonic welding or adhesive to achieve a waterproof and dustproof effect. A waterproof ring is added to the socket and pressed against the housing to achieve the same waterproof and dustproof effect.
[0007] A waterproof connector structure according to some embodiments of the present invention is applied to the connector body; characterized in that it includes:
[0008] A waterproof top cover is attached to the top of the connector body and extends to the side wall of the connector body;
[0009] A waterproof lower cover is connected to the bottom of the connector body, and the waterproof lower cover is tightly connected to the waterproof upper cover to enclose the connector body;
[0010] The waterproof top cover and the waterproof bottom cover are provided with waterproof grooves near the ports of the connector body. The waterproof grooves are arranged around the surfaces of the waterproof top cover and the waterproof bottom cover. A waterproof ring is provided in the waterproof grooves, and the waterproof ring is fitted into the waterproof grooves of the waterproof top cover and the waterproof bottom cover. When the connector body is assembled, the waterproof ring comes into contact with the product housing and is deformed by compression.
[0011] According to some embodiments of the present invention, the waterproof upper cover and the waterproof lower cover are tightly connected to form an integral waterproof shell.
[0012] According to some embodiments of the present invention, the waterproof upper cover and the waterproof lower cover are respectively provided with limiting grooves, and the limiting grooves are matched with the contours of the connector body.
[0013] According to some embodiments of the present invention, the outer ring of the limiting groove is provided with a connecting protrusion and a connecting groove that are connected to each other. The connecting groove is provided at the waterproof upper cover, and the connecting protrusion is provided at the waterproof lower cover. When the waterproof upper cover and the waterproof lower cover are connected, the connecting protrusion and the connecting groove are tightly connected.
[0014] According to some embodiments of this utility model, the connecting protrusion and the connecting groove are ultrasonically welded or glued together.
[0015] According to some embodiments of the present invention, the top end face of the limiting groove is higher than the top end face of the connecting groove.
[0016] According to some embodiments of the present invention, the waterproof lower cover is provided with a positioning post, which is protruding perpendicular to the bottom surface of the waterproof lower cover.
[0017] According to some embodiments of the present invention, the bottom of the waterproof cover is provided with a plug groove corresponding to the position of the connector body pin.
[0018] According to some embodiments of this utility model, the ends of the waterproof upper cover and the waterproof lower cover are hollowed out corresponding to the pin areas of the connector body.
[0019] According to some embodiments of this utility model, the ratio of the depth of the waterproof groove to the thickness of the waterproof ring is 0.3 to 0.4.
[0020] The waterproof connector structure according to some embodiments of this utility model has at least the following beneficial effects: the connector body achieves good waterproof and dustproof performance through the wrapping of the waterproof upper cover and the waterproof lower cover, and the action of the waterproof ring and the deformation and compression of the shell. The periphery of the port of the connector body achieves waterproof and dustproof effect through the compression of the waterproof ring. Furthermore, the entire connector body achieves waterproof and dustproof effect through the waterproof upper cover and the waterproof lower cover, effectively reducing manufacturing costs, increasing connection accuracy, and improving waterproof performance.
[0021] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is an exploded view of the waterproof connector structure according to an embodiment of the present invention;
[0024] Figure 2 This is a cross-sectional view of the waterproof connector structure according to an embodiment of this utility model;
[0025] Figure 3 This is a schematic diagram of the waterproof top cover of the connector waterproof structure according to an embodiment of this utility model;
[0026] Figure 4 This is a first schematic diagram of the waterproof lower cover of the connector waterproof structure according to an embodiment of the present utility model;
[0027] Figure 5 This is a second schematic diagram of the waterproof lower cover of the connector waterproof structure according to an embodiment of the present utility model.
[0028] Figure label:
[0029] Connector body 110, waterproof housing 120, waterproof upper cover 210, waterproof lower cover 220, insertion groove 221, positioning post 223, limiting groove 230, connecting protrusion 240, connecting groove 250, waterproof groove 260, waterproof ring 310. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, top, bottom, etc., are based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0034] The following is for reference. Figures 1-5 This invention describes a waterproof connector structure according to an embodiment of the present invention.
[0035] like Figures 1-5 As shown, the waterproof connector structure is mainly used to meet the waterproof requirements of some larger connectors, such as card socket connectors. It is applied to the connector body 110 and includes a waterproof upper cover 210, a waterproof lower cover 220, and a waterproof ring 310.
[0036] Specifically, the waterproof cover 210 is connected to the top of the connector body 110 and extends from the top of the connector body 110 to the side wall of the connector body 110, thus covering the top and sides of the connector body 110.
[0037] The waterproof lower cover 220 is connected to the top of the connector body 110, and the waterproof lower cover 220 is tightly connected to the waterproof upper cover 210, thereby wrapping the connector body 110 around its sides and top and bottom, completely enclosing the connector body 110 inside.
[0038] The waterproof upper cover 210 and waterproof lower cover 220 are provided with waterproof grooves 260 near the ports of the connector body 110. The waterproof grooves 260 surround the surfaces of the waterproof upper cover 210 and waterproof lower cover 220, and a waterproof ring 310 is provided in the waterproof grooves 260 of the waterproof upper cover 210 and waterproof lower cover 220. When the connector body 110 is assembled, the waterproof ring 310 comes into contact with the product housing and is deformed by compression.
[0039] Specifically, after the connector body 110 is assembled, the waterproof ring 310 is compressed by the product shell. The deformation of the waterproof ring 310 under force reduces the gap between the waterproof ring 310 and the shell, thereby preventing external liquid from entering the interior through the contact gap. The waterproof structure of the connector in this embodiment can wrap around the connector body 110 from all sides, thereby improving the connector's waterproof and dustproof capabilities.
[0040] Compared to existing waterproof connector structures, the waterproof connector structure of this invention is designed for use with larger connectors. The waterproof upper cover 210 and waterproof lower cover 220 are designed separately, resulting in higher manufacturing precision and better waterproofing after being wrapped around the connector. The waterproof ring 310, combined with the product housing, compresses and deforms to seal the gap between the connector and the product housing, further enhancing waterproof performance.
[0041] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the waterproof upper cover 210 and the waterproof lower cover 220 are tightly connected to form an integral waterproof housing 120. Specifically, after the waterproof upper cover 210 and the waterproof lower cover 220 are connected to the connector body 110, they form an integral structure, and the connector body 110 is completely enclosed within the waterproof housing 120.
[0042] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the waterproof upper cover 210 and the waterproof lower cover 220 are each provided with a limiting groove 230, which matches the contour of the connector body 110. Specifically, the limiting groove 230 is adaptively adjusted according to the contour of different connector bodies 110 to ensure that the connector body 110 will not wobble when installed in the limiting groove 230, thereby reducing connection gaps, improving installation accuracy, and enhancing waterproof performance.
[0043] In some embodiments of this utility model, such as Figure 3 and Figure 4As shown, the outer ring of the limiting groove 230 is provided with a connecting protrusion 240 and a connecting groove 250 that are connected to each other. The connecting groove 250 is located at the waterproof upper cover 210, and the connecting protrusion 240 is located at the waterproof lower cover 220. When the waterproof upper cover 210 and the waterproof lower cover 220 are connected, the connecting protrusion 240 and the connecting groove 250 are tightly connected.
[0044] Specifically, to further improve the waterproof effect, the outer ring of the limiting groove 230 is formed by the engagement of the connecting protrusion 240 and the connecting groove 250 to form a double partition. In this embodiment, the connecting groove 250 is provided on the end face of the waterproof upper cover 210, and the connecting protrusion 240 is provided on the end face of the waterproof lower cover 220.
[0045] It should be understood that the arrangement of the connecting groove 250 and the connecting protrusion 240 is not the only implementation method. In some other embodiments, the connecting protrusion 240 can also be provided on the end face of the waterproof upper cover 210 and the connecting groove 250 can be provided on the end face of the waterproof lower cover 220, depending on actual production needs. It should be understood that the arrangement of the connecting groove 250 and the connecting protrusion 240 can be flexibly changed without departing from the basic concept of this utility model, and all such changes should be considered within the protection scope defined by this utility model.
[0046] In some embodiments of this utility model, such as Figure 2 As shown, the connecting protrusion 240 and the connecting groove 250 are joined by ultrasonic welding or adhesive bonding. Specifically, after the waterproof upper cover 210 and the waterproof lower cover 220 are fitted onto the connector body 110, the two waterproof covers are tightly connected by ultrasonic welding or adhesive bonding.
[0047] In some embodiments of this utility model, such as Figures 2-4 As shown, the top end face of the limiting groove 230 is higher than the top end face of the connecting groove 250. Specifically, the end face of the limiting groove 230 is higher than the end face of the connecting groove 250, and the two end faces form a height difference, which has a stepped waterproofing effect. Even if the connection between the connecting protrusion 240 and the connecting groove 250 ages and gaps are formed, liquid will not directly enter the limiting groove 230 through the gaps, thus having a buffering effect to temporarily store the liquid.
[0048] In some embodiments of this utility model, such as Figure 2 and Figure 5 As shown, the waterproof lower cover 220 is provided with a positioning post 223, which is protruding perpendicular to the bottom surface of the waterproof lower cover 220. The positioning post 223 of the waterproof lower cover 220 can be positioned and connected with the motherboard. The connection between the pins of the connector body 110 and the motherboard and the positioning post 223 and the motherboard achieve a dual positioning effect.
[0049] In some embodiments of this utility model, such as Figure 4 and Figure 5As shown, a mating groove 221 is provided on the bottom of the waterproof cover 220 at the position corresponding to the pins of the connector body 110. Specifically, the connection gap between the pins of the connector body 110 and the mating groove 221 is sealed with sealant to prevent liquid from entering the interior through the gap.
[0050] Furthermore, such as Figures 1-5 As shown, the ends of the waterproof upper cover 210 and the waterproof lower cover 220 are hollowed out corresponding to the pin areas of the connector body 110. Specifically, the connection pins of the connector body 110 extend from the hollowed-out areas at the ends to connect with the motherboard, and the hollowed-out areas are sealed with adhesive.
[0051] In some embodiments of this invention, the ratio of the depth of the waterproof groove 260 to the thickness of the waterproof ring 310 is 0.3 to 0.4. This prevents the waterproof ring 310 from detaching from the waterproof groove 260 and ensures that the waterproof ring 310 can completely fill the interior of the waterproof groove 260 when it is compressed and deformed against the product shell.
[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A waterproof structure for a connector, applied to the connector body (110); characterized in that, include: A waterproof top cover (210) is attached to the top of the connector body (110) and extends to the side wall of the connector body (110); A waterproof lower cover (220) is connected to the bottom of the connector body (110), and the waterproof lower cover (220) is tightly connected to the waterproof upper cover (210) to cover the connector body (110); The waterproof upper cover (210) and the waterproof lower cover (220) are provided with waterproof grooves (260) near the ports of the connector body (110). The waterproof grooves (260) are arranged around the surfaces of the waterproof upper cover (210) and the waterproof lower cover (220). A waterproof ring (310) is provided in the waterproof grooves (260) of the waterproof upper cover (210) and the waterproof lower cover (220). When the connector body (110) is assembled, the waterproof ring (310) contacts and deforms in contact with the product shell.
2. The waterproof connector structure according to claim 1, characterized in that, The waterproof upper cover (210) and the waterproof lower cover (220) are tightly connected to form an integral waterproof shell (120).
3. The waterproof connector structure according to claim 1, characterized in that, The waterproof upper cover (210) and the waterproof lower cover (220) are respectively provided with limiting grooves (230), and the limiting grooves (230) match the contour of the connector body (110).
4. The waterproof connector structure according to claim 3, characterized in that, The outer ring of the limiting groove (230) is provided with a connecting protrusion (240) and a connecting groove (250) that are connected to each other. The connecting groove (250) is located at the waterproof upper cover (210), and the connecting protrusion (240) is located at the waterproof lower cover (220). When the waterproof upper cover (210) and the waterproof lower cover (220) are connected, the connecting protrusion (240) and the connecting groove (250) are tightly connected.
5. The waterproof connector structure according to claim 4, characterized in that, The connecting protrusion (240) and the connecting groove (250) are joined by ultrasonic welding or adhesive bonding.
6. The waterproof connector structure according to claim 4, characterized in that, The top end face of the limiting groove (230) is higher than the top end face of the connecting groove (250).
7. The waterproof connector structure according to claim 1, characterized in that, The waterproof lower cover (220) is provided with a positioning post (223), which is protruding perpendicular to the bottom surface of the waterproof lower cover (220).
8. The waterproof connector structure according to claim 1, characterized in that, The bottom of the waterproof cover (220) is provided with a plug groove (221) corresponding to the position of the pin of the connector body (110).
9. The waterproof connector structure according to claim 1, characterized in that, The ends of the waterproof upper cover (210) and the waterproof lower cover (220) are hollowed out corresponding to the pin areas of the connector body (110).
10. The waterproof connector structure according to claim 1, characterized in that, The ratio of the depth of the waterproof groove (260) to the thickness of the waterproof ring (310) is 0.3 to 0.4.