Waterproof charging connector with lock catch function
The waterproof charging connector, with its D-shaped structure and elastic lever arm buckle design, solves the problems of easy removal and insufficient waterproof performance of existing charging connectors, thereby improving reliability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU CUSMADE ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-08
AI Technical Summary
Existing charging connectors lack locking functionality, making them easy to pull out due to accidental force. Furthermore, they are difficult to identify the foolproof position in non-coaxial structures and lack waterproof performance.
A waterproof charging connector with a locking function was designed, using a D-shaped female and male connector, combined with an elastic lever arm structure and a sealing ring to achieve locking and sealing effects.
It improves the reliability and waterproof performance of the connector, facilitates plugging and unplugging identification, and avoids safety hazards caused by misoperation.
Smart Images

Figure CN224217780U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of charging connectors, and particularly relates to a waterproof charging connector with a locking function. Background Technique
[0002] At present, electric two-wheelers at home and abroad are mainly powered by lithium batteries. The charging mode of lithium batteries is generally divided into two types: directly charging the battery by a charger or charging the battery through a charging port on the vehicle frame.
[0003] The inventor found that at least the following problems in the prior art have not been solved. The commonly used charging connectors on the market mainly have the following problems or deficiencies:
[0004] 1. Most connectors are of the straight plug and unplug type. After mating, there is no locking function, and when the charging head cable is subjected to an accidental force, the plug is easily pulled out of the socket.
[0005] 2. Most male and female charging connectors are circular. When in a non-coaxial structure, it is necessary to identify the anti-fooling position.
[0006] 3. After the male and female connectors are inserted, there is no waterproof function in the mating.
[0007] Therefore, we propose a waterproof charging connector with a locking function, which can solve the above problems. Content of the Utility Model
[0008] The purpose of the utility model is to provide a waterproof charging connector with a locking function, which solves the problems raised in the background technique.
[0009] To achieve the above purpose, the utility model provides the following technical scheme: A waterproof charging connector with a locking function, including a female end threaded panel connector and a male end wire end connector. One end of the female end threaded panel connector is provided with a cavity, and the cavity of the female end threaded panel connector is in a "D" shape. One end of the male end wire end connector is provided with a positioning member, and the outer shape of the positioning member of the male end wire end connector is in a "D" shape. It also includes a fixing mechanism for fixedly connecting the female end threaded panel connector and the male end wire end connector. The fixing mechanism includes an elastic force arm structure and a window.
[0010] As an optional scheme of the technical scheme of this application, a positioning member flange is arranged on the outer side of the female end threaded panel connector. The window is贯穿 opened at the upper end of the positioning member flange. The elastic force arm structure is fixedly connected above the positioning member of the male end connector, and a locking point is arranged at the front end of the elastic force arm of the elastic force arm structure.
[0011] As an optional scheme of the technical scheme of this application, the window is in a "square" shape, and the locking point corresponds to the window.
[0012] As an optional solution to the technical solution of this application, the rear end of the elastic arm of the elastic arm structure is provided with a protruding force-applying pressing structure, and the locking point is matched with the size of the window.
[0013] As an optional solution to the technical solution of this application, the cavity of the female threaded panel connector is provided with a female left half and a female right half, and the positioning component of the male wire connector is provided with a male left half and a male right half.
[0014] As an optional embodiment of the technical solution of this application, the left half of the female portion is equipped with a power pin and a signal jack; the right half of the female portion is equipped with a female power jack and a female signal jack; the inner side of the left half of the male portion is equipped with a male power pin and a male signal pin, and the inner side of the right half of the male portion is equipped with a male power jack and a male signal pin.
[0015] As an optional solution to the technical solution of this application, a plastic partition is provided between the male left half and the male right half, and the female left half and the female right half correspond to the male left half and the male right half, respectively.
[0016] As an optional solution to the technical solution of this application, a D-shaped sealing ring is fitted on the positioning component of the male end connector, and the outer side of the sealing ring is in contact with the inner wall of the cavity of the female end threaded panel connector.
[0017] As an optional solution to the technical solution of this application, the outer side of the female threaded panel connector away from the cavity is provided with a threaded structure, and a nut is helically connected to the outer side of the threaded structure.
[0018] As an optional solution to the technical solution of this application, the cavity of the female threaded panel connector is matched with the size of the positioning part of the male wire connector.
[0019] Compared with existing technologies, the beneficial effects of this utility model are as follows: the elastic snap-fit structure effectively improves the reliability of male and female connector mating. The D-shaped cavity structure makes it easy for users to identify and quickly insert and remove the connector. The sealing ring on the male end provides a sealed and waterproof performance when mating with the female connector, improving product reliability. Furthermore, the design of the male and female connectors being of the same body effectively solves the hidden danger of personnel accidentally coming into contact with both male and female live parts simultaneously. This connector design is more conducive to market promotion and application. Attached Figure Description
[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0021] Figure 1This is a front view of a waterproof charging connector with a locking function according to this utility model;
[0022] Figure 2 This is a schematic diagram of the female threaded panel connector of a waterproof charging connector with locking function according to this utility model.
[0023] Figure 3 This is a schematic diagram of the internal cavity of a waterproof charging connector with a locking function according to this utility model.
[0024] Figure 4 This is a schematic diagram of the male wire connector of a waterproof charging connector with a locking function according to this utility model.
[0025] Figure 5 This is a schematic diagram of a positioning component for a waterproof charging connector with a locking function according to the present invention;
[0026] Figure 6 This is a schematic diagram showing the connection between the locking point and the window of a waterproof charging connector with a locking function according to this utility model.
[0027] In the diagram: 1. Female threaded panel connector; 1-11. Cavity; 1-12. Left half of the female connector; 1-13. Right half of the female connector; 1-14. Positioning flange; 1-141. Window; 1-15. Threaded structure; 1-2. Female power socket; 1-3. Power pin; 1-4. Female signal socket; 1-5. Nut; 2. Male wire connector; 2-1. Positioning element; 2-12. Right half of the male connector; 2-13. Left half of the male connector; 2-14. Elastic lever structure; 2-141. Locking point; 2-142. Force-applying pressing structure; 2-15. Plastic partition; 2-2. Male power pin; 2-3. Male power socket; 2-4. Male signal pin; 2-5. Sealing ring. Detailed Implementation
[0028] Please see Figures 1-6This utility model provides a technical solution: a waterproof charging connector with a locking function, including a female threaded panel connector 1 and a male wire connector 2. One end of the female threaded panel connector 1 has a cavity 1-11, which is D-shaped. One end of the male wire connector 2 has a positioning element 2-1, also D-shaped, and the cavity 1-11 of the female threaded panel connector 1 is sized to match the positioning element 2-1 of the male wire connector 2. A D-shaped sealing ring 2-5 is fitted onto the positioning element 2-1 of the male wire connector 2, with the outer side of the sealing ring 2-5 fitting against the inner wall of the cavity 1-11 of the female threaded panel connector 1. A threaded structure 1-15 is provided on the outer side of the female threaded panel connector 1 away from the cavity 1-11, and a nut 1-5 is screwed onto the outer side of the threaded structure 1-15.
[0029] In this technical solution, both the cavity 1-11 of the female threaded panel connector 1 and the positioning element 2-1 of the male wire connector 2 have a D-shaped structure, which makes it easy for end consumers to quickly identify the mating. The positioning element 2-1 of the male wire connector 2 is provided with a D-shaped sealing ring 2-5. When the male and female connectors are mated, the sealing ring 2-5 and the inner wall of the cavity 1-11 of the female threaded panel connector 1 form a sealing and waterproof effect.
[0030] In this embodiment, a fixing mechanism for fixing the female threaded panel connector 1 and the male wire connector 2 is provided. The fixing mechanism includes an elastic lever arm structure 2-14 and a window 1-141. A positioning flange 1-14 is provided on the outer side of the female threaded panel connector 1. The window 1-141 is opened through the upper end of the positioning flange 1-14 and is in the shape of a "U". The elastic lever arm structure 2-14 is fixedly connected above the male connector positioning member 2-1. The front end of the elastic lever arm of the elastic lever arm structure 2-14 is provided with a locking point 2-141, which corresponds to the window 1-141 and the size of the locking point 2-141 matches that of the window 1-141. The rear end of the elastic lever arm of the elastic lever arm structure 2-14 is provided with a protruding force-applying pressing structure 2-142.
[0031] In this technical solution, a window 1-141 is opened through the upper end of the positioning flange 1-14. The elastic lever arm structure 2-14 is fixedly connected above the male connector positioning part 2-1. The front end of the elastic lever arm of the elastic lever arm structure 2-14 is provided with a locking point 2-141. Pressing the force-applying pressing structure 2-142 at the rear end of the elastic lever arm structure 2-14 can align the locking point 2-141 with the window 1-141. Then, releasing the force-applying pressing structure 2-142 allows the locking point 2-141 to be inserted into the window 1-141. When the female threaded panel connector 1 and the male wire connector 2 are mated, a locking function is formed.
[0032] In this embodiment, the cavity 1-11 of the female threaded panel connector 1 is provided with a female left half 1-12 and a female right half 1-13. The female left half 1-12 is equipped with a power pin 1-3 and a signal jack 1-4; the female right half 1-13 is equipped with a female power jack 1-2 and a female signal jack 1-4. The positioning member 2-1 of the male wire connector 2 is provided with a male left half 2-13 and a male right half 2-12. The male left half 2-13 is equipped with a male power pin 2-2 and a male signal pin 2-4 on its inner side, and the male right half 2-12 is equipped with a male power jack 2-3 and a male signal pin 2-4 on its inner side. A plastic partition 2-15 is provided between the male left half 2-13 and the male right half 2-12. The female left half 1-12 and the female right half 1-13 correspond to the male left half 2-13 and the male right half 2-12, respectively.
[0033] In this technical solution, the female threaded panel connector 1 and the male wire connector 2 are of the same type. The positive terminal of the female threaded panel connector 1 is a socket structure and the negative terminal is a pin structure; the positive terminal of the male wire connector 2 is a pin structure and the negative terminal is a socket structure, which can effectively prevent personnel from accidentally touching the live positive and negative terminals at the same time.
[0034] When a waterproof charging connector with a locking function is used, both the cavity 1-11 of the female threaded panel connector 1 and the positioning element 2-1 of the male wire connector 2 have a D-shaped structure, which facilitates quick identification and mating by end consumers. The positioning element 2-1 of the male wire connector 2 is equipped with a D-shaped sealing ring 2-5. When the male and female connectors are mated, the sealing ring 2-5 and the inner wall of the cavity 1-11 of the female threaded panel connector 1 form a waterproof seal. A window 1-141 is provided through the upper end of the positioning element flange 1-14. An elastic lever arm structure 2-14 is fixedly connected above the male connector positioning element 2-1. The elastic lever arm structure 2-14 has a front elastic lever arm... The end is equipped with a locking point 2-141. Pressing the force-applying pressing structure 2-142 at the rear end of the elastic lever structure 2-14 aligns the locking point 2-141 with the window 1-141. Then, releasing the force-applying pressing structure 2-142 allows the locking point 2-141 to be inserted into the window 1-141. When the female threaded panel connector 1 and the male wire connector 2 are mated, a locking function is formed. The female threaded panel connector 1 and the male wire connector 2 are of the same male and female structure. The positive terminal of the female threaded panel connector 1 is a socket structure, and the negative terminal is a pin structure; the positive terminal of the male wire connector 2 is a pin structure, and the negative terminal is a socket structure. This effectively prevents personnel from accidentally touching the live positive and negative terminals at the same time.
Claims
1. A waterproof charging connector with a locking function, comprising a female threaded panel connector (1) and a male wire connector (2), characterized in that, One end of the female threaded panel connector (1) is provided with a cavity (1-11). The cavity (1-11) of the female threaded panel connector (1) is in a "D" shape. One end of the male wire end connector (2) is provided with a positioning member (2-1). The outer shape of the positioning member (2-1) of the male wire end connector (2) is in a "D" shape. There is also a fixing mechanism for fixedly connecting the female threaded panel connector (1) and the male wire end connector (2). The fixing mechanism includes an elastic force arm structure (2-14) and a window (1-141).
2. A waterproof charging connector with locking function according to claim 1, characterized in that: A positioning member flange (1-14) is provided on the outside of the female threaded panel connector (1). The window (1-141) is penetratingly opened at the upper end of the positioning member flange (1-14). The elastic force arm structure (2-14) is fixedly connected above the positioning member of the male connector (2-1). A locking point (2-141) is provided at the front end of the elastic force arm of the elastic force arm structure (2-14).
3. A waterproof charging connector with a locking function according to claim 2, characterized in that: The window (1-141) is in a "square" shape. The locking point (2-141) corresponds to the window (1-141).
4. A waterproof charging connector with a locking function according to claim 3, characterized in that: A protruding force application pressing structure (2-142) is provided at the rear end of the elastic force arm of the elastic force arm structure (2-14). The locking point (2-141) and the window (1-141) are matched in size.
5. A waterproof charging connector with a locking function according to claim 4, characterized in that: A female left half part (1-12) and a female right half part (1-13) are respectively arranged inside the cavity (1-11) of the female threaded panel connector (1). A male left half part (2-13) and a male right half part (2-12) are respectively arranged on the positioning member (2-1) of the male wire end connector (2).
6. A waterproof charging connector with a locking function according to claim 5, characterized in that: A power pin (1-3) and a signal jack (1-4) are installed on the female left half part (1-12); a female power jack (1-2) and a female signal jack (1-4) are installed on the female right half part (1-13); a male power pin (2-2) and a male signal pin (2-4) are installed inside the male left half part (2-13), and a male power jack (2-3) and a male signal pin (2-4) are installed inside the male right half part (2-12).
7. A waterproof charging connector with a locking function according to claim 6, characterized in that: A plastic partition (2-15) is provided between the male left half part (2-13) and the male right half part (2-12). The female left half part (1-12) and the female right half part (1-13) respectively correspond to the male left half part (2-13) and the male right half part (2-12).
8. A waterproof charging connector with locking function according to claim 1, characterized in that: A D-shaped sealing ring (2-5) is sleeved on the positioning member (2-1) of the male wire end connector (2). The outer side of the sealing ring (2-5) is in contact with the inner wall of the cavity (1-1)1 of the female threaded panel connector (1).
9. A waterproof charging connector with locking function according to claim 1, characterized in that: A threaded structure (1-1)5 is provided on the outside of the end of the female threaded panel connector (1) far from the cavity (1-11). A nut (1-5) is spirally connected to the outside of the threaded structure (1-15).
10. A waterproof charging connector with a locking function according to claim 1, characterized in that: The cavity (1-11) of the female threaded panel connector (1) and the positioning member (2-1) of the male wire end connector (2) are matched in size.