Sealed waterproof connector
By designing a sealed waterproof connector, using male and female plug-in mating and a split shell structure, the problem of insufficient waterproof performance of power connectors in high humidity environments is solved, achieving high-efficiency waterproof performance and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-20
AI Technical Summary
Existing power connectors are not waterproof in high humidity environments, making them prone to liquid leakage and short circuits. There is a lack of systematic and integrated improvement measures.
Design a sealed waterproof connector that uses male and female plug-in mating, and utilizes a ring seal and a split shell structure, combined with a limiting part and detachable connectors, to ensure a waterproof barrier and structural stability after mating.
It significantly improves the waterproof performance and reliability of connectors in high humidity environments, prevents liquid leakage, enhances the ease of assembly and maintenance of the structure, and meets the requirements for long-term use in complex environments.
Smart Images
Figure CN224021133U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrical connectors, and more particularly to a sealed, waterproof connector. Background Technology
[0002] Power connectors are widely used in electronic equipment, industrial control, and other fields, playing a vital role in modern electrical systems by enabling reliable connections between circuits. With the increasing demand for power transmission and technological advancements, various functional connectors are emerging, among which waterproof performance has become an indispensable key indicator in special scenarios. Especially in outdoor environments or other high-humidity environments, connectors with good protective capabilities are crucial for ensuring electrical safety and extending product lifespan.
[0003] For similar applications, common solutions on the market currently include using rubber sleeves to cover the interface area, adding independent waterproof covers, or optimizing the materials of contact parts to improve overall airtightness. Other methods include designing specialized multi-layered shielding structures or using adhesives to fill gaps to enhance resistance to water intrusion. However, these traditional measures often focus on single-dimensional improvements and lack a systematic, integrated approach.
[0004] While existing technologies can improve the moisture-proof performance of products under normal conditions to some extent, they are still insufficient when faced with extreme weather or prolonged immersion. In particular, after the male and female connectors are connected, it is difficult to form an absolutely reliable sealed barrier between them, which can lead to problems such as liquid leakage along the joint surface and causing short circuits. This obviously cannot fully meet the high standards required by real-world application scenarios. Utility Model Content
[0005] To improve the waterproof performance of power connectors in high humidity environments, this application provides a sealed waterproof connector. The technical solution adopted is as follows:
[0006] A sealed waterproof connector includes a male connector and a female connector; the male connector and the female connector are inserted and mated to achieve a conductive connection;
[0007] The male connector includes a first housing and a male terminal disposed inside the first housing; the first housing has a plug end; the female connector includes a second housing and a female terminal disposed inside the second housing, the second housing has a socket end, the plug end and the socket end are plugged in and engaged; the female terminal enters the first housing from the plug end and is electrically connected to the male terminal;
[0008] The second housing is also provided with a first sealing element, which is annular and its periphery abuts against the inner wall of the second housing; when the male and female connectors are plugged in, the plug end abuts against the first sealing element to achieve a waterproof seal between the male and female connectors.
[0009] By adopting the above technical solution, when the male and female connectors are mated, the first sealing element can form an effective waterproof barrier during the insertion of the male connector into the female connector, ensuring that the connector maintains good waterproof performance in high humidity environments. This design significantly improves the overall sealing performance and reliability of the connector, solving the problem of insufficient waterproof performance of traditional connectors in harsh environments.
[0010] Preferably, the second housing includes an outer shell and an inner shell, the plug end is inserted into the inner shell, the inner shell is inserted into the outer shell, and the inner shell and the outer shell are detachably connected by a connector; the periphery of the first sealing member abuts against the inner wall of the outer shell; a limiting part is provided on the inner wall of the outer shell, and the limiting part and the inner shell abut against two opposite end faces of the first sealing member to fix the first sealing member.
[0011] By adopting the above technical solution, the plug-in fit of the outer shell and the detachable connection method improves the assembly convenience and maintainability of the structure; the first sealing element is clamped and fixed by the limiting part and the inner shell, ensuring its stable position in the second shell, thereby enhancing the waterproof sealing effect when the male and female plugs are plugged in.
[0012] Preferably, the connector includes a boss on the inner shell and a groove on the outer shell, wherein the boss and the groove engage in a snap-fit relationship.
[0013] By adopting the above technical solution, the snap-fit between the boss and the groove enables rapid assembly and reliable connection between the inner and outer shells, simplifying the manufacturing process while ensuring structural stability. This design not only facilitates disassembly and maintenance but also effectively prevents the inner shell from loosening or falling off under external forces, further improving the overall reliability of the connector.
[0014] Preferably, a limiting strip is provided on the outer side wall of the inner shell, and a limiting groove corresponding to the limiting strip is provided on the inner wall of the outer shell.
[0015] By adopting the above technical solution, the cooperation between the limiting strip and the limiting groove can prevent the inner shell from rotating relative to the outer shell, thereby ensuring the stable assembly between the inner shell and the outer shell and further enhancing the overall structural stability of the connector.
[0016] Preferably, a guide is provided on the side wall of the plug end, and a guide groove that mates with the guide is provided on the inner wall of the inner shell.
[0017] By adopting the above technical solution, the cooperation between the guide and the guide groove can ensure that the male and female connectors have the correct insertion direction when plugged in, effectively avoiding connection failure or damage caused by mis-plugging.
[0018] Preferably, both the first housing and the second housing have wiring terminals, and a second sealing element is provided at the wiring terminals, with a wire through hole provided on the second sealing element.
[0019] By adopting the above technical solution, the second seal can effectively prevent moisture from seeping into the connector from the terminal, ensuring that the wires can still maintain good sealing when passing through the wire hole, thereby further improving the waterproof performance of the entire connector.
[0020] Preferably, the male and female connectors are detachably connected by a connecting component, which includes a buckle and a locking head, respectively disposed on the male and female connectors, and the buckle and locking head engage in a locking mechanism.
[0021] By adopting the above technical solution, the male and female connectors can be detachably connected via a connecting component. Specifically, a snap-fit and a locking head are respectively located on the male and female connectors, and the connection is completed through a snap-fit engagement. This design is not only easy to operate, but also ensures a secure connection between the male and female connectors, while facilitating installation and disassembly by the user.
[0022] Preferably, the male plug has a socket and the female plug has a pin, the pin being inserted into the socket; a snap-fit spring is also provided in the socket, the snap-fit spring being able to abut against the pin.
[0023] By adopting the above technical solution, the male plug is equipped with a socket and the female plug with pins, and the pins are engaged with the sockets to achieve rapid connection between the male and female plugs, improving connection efficiency while ensuring connection reliability. Furthermore, the snap-fit spring can tightly abut against the pins, effectively enhancing the stable connection between the male and female plugs.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. The male and female connectors achieve a waterproof seal after insertion through the first sealing element, which significantly improves the waterproof performance of the connector in high humidity environments and effectively prevents short circuit failure caused by liquid leakage;
[0026] 2. The second housing adopts a split design of outer shell and inner shell and is fixed with the limiting part to fix the first sealing element, which ensures assembly stability and improves the reliability of the overall structure;
[0027] 3. A second seal and a wire hole are provided at the terminal to further enhance the overall sealing performance of the connector and meet the stringent requirements for long-term use in complex environments. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the sealed waterproof connector in the embodiments of this application;
[0029] Figure 2 This is an exploded view of the sealed waterproof connector in the embodiments of this application;
[0030] Figure 3 This is a cross-sectional view of the male head in an embodiment of this application;
[0031] Figure 4 This is a cross-sectional view of the female head in an embodiment of this application;
[0032] Figure 5 This is a schematic diagram of the fit between the plate end and the male connector in an embodiment of this application.
[0033] The following labels are used in the attached diagram: 1. Male connector; 11. First housing; 111. Plug end; 112. Guide; 12. Male terminal; 121. Socket; 2. Female connector; 21. Second housing; 211. Socket end; 212. Outer shell; 213. Inner shell; 214. Limiting part; 215. Limiting strip; 216. Limiting groove; 217. Guide groove; 22. Female terminal; 221. Pin; 23. First seal; 24. Connector; 241. Boss; 242. Groove; 3. Second seal; 4. Connecting assembly; 41. Snap-on; 42. Clip; 5. Plate end. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0035] The sealed waterproof connector provided in this application embodiment refers to... Figure 1 and Figure 2 The sealed waterproof connector consists of two parts: a male connector 1 and a female connector 2. Male connector 1 and female connector 2 are inserted together to achieve a conductive connection. Specifically:
[0036] Reference Figure 3 The male connector 1 includes a first housing 11 and a male terminal 12 disposed inside the first housing 11. One end of the first housing 11 serves as a plug end 111 for insertion into and mating with the female connector 2, and the other end serves as a wiring terminal for threading a wire and electrically connecting the wire to the male terminal 12. The female connector 2 consists of a second housing 21 and a female terminal 22. One end of the second housing 21 is configured as a socket end 211, and the other end also serves as a wiring terminal. The plug end 111 of the first housing 11 and the socket end 211 of the second housing 21 can be plugged in and mated, thereby realizing the electrical connection between the male terminal 12 and the female terminal 22.
[0037] Furthermore, refer to Figure 4The second housing 21 consists of an outer shell 212 and an inner shell 213. Both the inner shell 213 and the outer shell 212 are made of engineering plastic, possessing good insulation properties and toughness, and ensuring sufficient rigidity to withstand external impacts. The inner shell 213 and the outer shell 212 are interlocked and detachably connected via a connector 24. Specifically, the connector 24 includes a boss 241 on the inner shell 213 and a groove 242 on the outer shell 212, with the boss 241 and the groove 242 engaging.
[0038] In addition, a limiting strip 215 is provided on the outer side wall of the inner shell 213, and a limiting groove 216 corresponding to the limiting strip 215 is provided on the inner wall of the outer shell 212 to prevent relative rotation of the inner shell 213 within the outer shell 212, thereby ensuring stable assembly between the inner shell 213 and the outer shell 212 and further enhancing the overall structural stability of the connector.
[0039] To ensure waterproofing between the male connector 1 and the female connector 2, an annular first sealing element 23 is installed between the outer shell 212 and the inner shell 213. The first sealing element 23 is a rubber ring, with its periphery tightly fitted to the inner wall of the outer shell 212. A limiting part 214 is provided on the inner wall of the outer shell 212, which is positioned opposite to the end of the inner shell 213. The rubber ring is located between the limiting part 214 and the inner shell 213, allowing the inner shell 213 and the limiting part 214 to hold both ends of the first sealing element 23, ensuring that it will not easily shift or deform, thus affecting the sealing effect. When the male connector 1 is fully inserted into the female connector 2, the plug end 111 will tightly abut against the surface of the first sealing element 23, thereby establishing a tight waterproof interface to prevent external moisture from invading the connector.
[0040] To further enhance anti-detachment and waterproof performance, a connecting component 4 can be installed between the male connector 1 and the female connector 2. This component includes a buckle 41 and a locking head 42, which are respectively fixed to the male connector 1 and the female connector 2. For example, the buckle 41 is fixed to the outer surface of the female connector 2, while the locking head 42 is located on the outer surface of the male connector 1, and vice versa. The buckle 41 and the locking head 42 effectively achieve a stable connection between the male connector 1 and the female connector 2, while also allowing for their detachability.
[0041] Furthermore, the male plug has a socket 121, and the female plug has pins 221. After the male plug 1 and the female plug 2 are inserted, the pins 221 can engage with the socket 121, enabling quick connection between the male plug 1 and the female plug 2, improving connection efficiency while ensuring connection reliability. A snap-fit spring is also provided inside the socket 121, which can tightly abut against the pins 221, thereby effectively enhancing the stable connection between the female plug and the male plug.
[0042] Furthermore, the wiring terminals of the first housing 11 and the second housing 21 are configured as outlets to facilitate wiring operations. A dedicated second seal 3 is provided at the wiring terminals. The wires used to connect to the male terminal 12 or the female terminal 22 pass through the second seal 3, allowing the second seal 3 to provide a waterproof seal to the wiring terminals. Specifically, the second seal 3 can be a rubber ring with a wire hole, or it can be a sealant block formed after potting.
[0043] Therefore, compared with traditional products, the sealed waterproof connector design in this embodiment significantly improves the problem of insufficient waterproof performance and is suitable for various complex usage scenarios.
[0044] In a preferred embodiment of this application, the female connector 2 can also be replaced by the board end 5, so that the male connector 1 is connected to the board end 5. The board end 5 has a similar structure to the female connector 2, and also has a first housing 11, a female terminal 22 and a first sealing member 23. The first housing 11 is also composed of an inner shell 213 and an outer shell 212. The board end 5 is mainly used to connect to the PCB circuit board, thereby serving as a cable plug for the PCB circuit board.
[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A sealed waterproof connector, characterized in that: It includes a male connector (1) and a female connector (2); the male connector (1) and the female connector (2) are plugged in to achieve a conductive connection; The male connector (1) includes a first housing (11) and a male terminal (12) disposed inside the first housing (11); the first housing (11) has a plug end (111); the female connector (2) includes a second housing (21) and a female terminal (22) disposed inside the second housing (21); the second housing (21) has a socket end (211); the plug end (111) and the socket end (211) are plugged in and engaged; the female terminal (22) enters the first housing (11) through the plug end (111) and is electrically connected to the male terminal (12); The second housing (21) is also provided with a first sealing element (23), which is arranged in a ring and its periphery abuts against the inner wall of the second housing (21); when the male head (1) and the female head (2) are inserted and matched, the plug end (111) abuts against the first sealing element (23) to achieve a waterproof seal between the male head (1) and the female head (2).
2. The sealed waterproof connector according to claim 1, characterized in that: The second housing (21) includes an outer shell (212) and an inner shell (213). The plug end (111) is inserted into the inner shell (213), and the inner shell (213) is inserted into the outer shell (212). The inner shell (213) and the outer shell (212) are detachably connected by a connector (24). The periphery of the first sealing member (23) abuts against the inner wall of the outer shell (212). A limiting part (214) is provided on the inner wall of the outer shell (212). The limiting part (214) and the inner shell (213) abut against the two opposite end faces of the first sealing member (23) to fix the first sealing member (23).
3. The sealed waterproof connector according to claim 2, characterized in that: The connector (24) includes a boss (241) on the inner shell (213) and a groove (242) on the outer shell (212), wherein the boss (241) and the groove (242) are engaged.
4. The sealed waterproof connector according to claim 2, characterized in that: The inner shell (213) is also provided with a limiting strip (215) on the outer side wall, and the outer shell (212) is provided with a limiting groove (216) corresponding to the limiting strip (215) on the inner wall.
5. The sealed waterproof connector according to claim 2, characterized in that: A guide (112) is provided on the side wall of the plug end (111), and a guide groove (217) that cooperates with the guide (112) is provided on the inner wall of the inner shell (213).
6. The sealed waterproof connector according to claim 1, characterized in that: Both the first housing (11) and the second housing (21) have wiring terminals, and a second sealing element (3) is provided at the wiring terminal. The second sealing element (3) has a wire hole.
7. The sealed waterproof connector according to claim 1, characterized in that: The male connector (1) and the female connector (2) are detachably connected by a connecting component (4). The connecting component (4) includes a buckle (41) and a locking head (42). The buckle (41) and the locking head (42) are respectively provided on the male connector (1) and the female connector (2), and the buckle (41) and the locking head (42) are engaged.
8. The sealed waterproof connector according to claim 1, characterized in that: The male connector (1) has a socket (121), and the female connector (2) has a pin (221). The pin (221) is inserted into the socket (121). A snap-fit spring is also provided in the socket (121), and the snap-fit spring can abut against the pin (221).