一种防错位防水三芯圆形连接器
By designing a misalignment-proof and waterproof three-core circular connector, and employing specific structures and sealing designs for the plug and socket housings, the problems of incorrect insertion and poor waterproofing of electric hydrofoil connectors have been solved, achieving high misalignment prevention, waterproofing, high safety, high flexibility of use, and high structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUJIANG YIDU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing connectors for electric hydrofoils are prone to problems during the insertion process, such as incorrect insertion direction, misalignment, deformation or bent pins due to forced insertion, and poor waterproof performance, especially when used in aquatic environments where the rubber ring is easily damaged.
A three-core circular connector designed to prevent misalignment and provide waterproof protection is employed. It features a plug shell and a socket shell structure. By setting a protective shell and a sealing ring on the plug shell, positioning protrusions and positioning grooves are used for limiting and fixing. Combined with sealing gaskets and annular grooves, multiple layers of waterproof protection are provided to ensure that the plug and socket are aligned and plugged in. The inner wall of the socket is provided with rounded corners and a '品'-shaped distribution to improve the smoothness and stability of the plugging.
It achieves excellent anti-misalignment effect, improves the waterproof performance of the connector, enhances the stability and safety of the mating, reduces the risk of short circuit and leakage, and improves the flexibility of use and the stability of the structure.
Smart Images

Figure CN224520291U_ABST
Abstract
Claims
1. A misinsertion-proof waterproof three-core round connector comprising a socket housing (1) and a plug housing (2), characterized in that: A plurality of plug protrusions (3) are installed on the bottom surface of the plug housing (2), and a protective housing (4) is installed around all the plug protrusions (3); positioning ribs (5) are provided on the inner side wall of the protective housing (4), and a plurality of uniformly distributed sealing rings (6) are installed on the outer side surface of the protective housing (4); a plurality of socket recesses (7) that cooperate with the plug protrusions (3) are provided in the middle of the top surface of the plug housing (2), and an annular groove (8) that cooperates with the protective housing (4) is provided around all the socket recesses (7), and a positioning groove (9) that cooperates with the positioning rib (5) is provided on the inner side wall of the annular groove (8) close to the central axis of the plug housing (2); a sealing gasket (10) is installed on the top surface of the socket housing (1).
2. The waterproof three-core round connector of claim 1, wherein: A chamfer is provided at the top port of the inner side wall of each socket recess (7).
3. The anti-misalignment and waterproof three-core circular connector according to claim 1, characterized in that: There are three plug protrusions (3) and three socket recesses (7).
4. The waterproof three-core round connector of claim 3, wherein: The three plug protrusions (3) are distributed in a "pin" shape; the three socket recesses (7) are also distributed in a "pin" shape.
5. The waterproof three-core round connector of claim 1, wherein: An annular card slot (11) is provided at the position corresponding to each sealing ring (6) on the outer side surface of the protective housing (4).
6. The waterproof three-core round connector of claim 1, wherein: A through groove (12) is provided between every two adjacent socket recesses (7).
7. The waterproof three-core round connector of claim 1, wherein: A code is provided at the position corresponding to each plug protrusion (3) on the bottom surface of the plug housing (2); a code is also provided at the position corresponding to each socket recess (7) on the bottom surface of the socket housing (1).
8. The waterproof three-core round connector of claim any one of claims 1 to 7, wherein: Connection through grooves are provided at the four corners of the top surface of the socket housing (1), and positioning bolts are provided in each connection through groove; connection through grooves that cooperate with the positioning bolts are also provided at the four corners of the sealing gasket (10).