Grounding terminal with multiple contact points
By designing grounding terminals with multiple contact points, using the elastic deformation contact arm to multi-point contact with the conductive sheet, and combining the sliding connection between the movable hook and the conductive track, the problems of difficult molding and poor contact stability of the traditional grounding terminal are solved, and the stability of high current transmission and the compact design of the connector are achieved.
Patent Information
- Application Number
- CN202422479382.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The conventional electrically conductive sheet and grounding terminal electrical connection structure are difficult to form, inconvenient assembly, few contact points, poor contact stability, and difficult to achieve stable transmission of large currents.
Design a grounding terminal with multiple contact points. By setting two elastically deformed contact arms on the terminal body, they are in close contact with the two side walls of the conductive socket of the conductive sheet, forming a stable multi-point contact conduction, and slidingly clamping the conductive track with the movable and fixed hooks to reduce space occupation.
The number and stability of the contact points between the ground terminal and the conductive sheet are improved, ensuring the stability of high current transmission, and at the same time, the compact design and operational convenience of the connector are achieved.
Smart Images
Figure CN223273532U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a track type wiring connector, in particular to a grounding terminal with multiple contact points. Background Art
[0002] A grounding terminal is provided in the track-type wiring connector. One side of the grounding terminal is hooked with the conductive track through a guide rail positioning hook to achieve electrical conduction, and the guide rail positioning hook of the grounding terminal can slide along the extension direction of the conductive track to achieve position adjustment. A wiring structure is also provided in the track-type wiring connector. The wiring structure generally consists of a conductive plate and a conductive spring to clamp the wire to achieve wiring, and the conductive plate and the grounding terminal are electrically connected. The traditional conductive plate and grounding terminal electrical connection structure is formed in one piece. This structure is difficult to form and inconvenient to assemble; therefore, the conductive plate and the grounding terminal are designed as a separate plug-in conductive structure, that is, a conductive socket is designed on the conductive plate, and a plug is designed on the grounding terminal. During assembly, the plug of the grounding terminal is inserted into the conductive socket of the conductive plate, and conduction is achieved through the close contact between the side wall of the plug and the side wall of the conductive socket. The current grounding terminal plug has few contact points with the conductive socket on the conductive plate, and the contact stability is poor, which is not conducive to the transmission of large currents and has poor transmission stability. Utility Model Content
[0003] In order to overcome the above-mentioned defects, the utility model provides a grounding terminal with multiple contact points, which effectively increases the number of contact points and contact stability between the grounding terminal and the conductive sheet, is conducive to the transmission of large currents, and has stable signal transmission.
[0004] The utility model adopts a technical solution to solve its technical problems: a grounding terminal with multiple contact points, including a terminal body and a guide rail positioning hook, the guide rail positioning hook is integrally formed on the terminal body, the guide rail positioning hook can be slidably clamped on the conductive rail located on one side of the terminal body along the extension direction of the guide rail, and at least one terminal contact piece is integrally formed on the other side of the terminal body, the terminal contact piece is formed with a first contact arm and a second contact arm spaced apart along its width direction, the first contact arm and the second contact arm can respectively generate elastic deformation along the width direction of the terminal contact piece, and a stop step protruding along the width direction of the terminal contact piece is formed on at least one side wall of the first contact arm and the second contact arm, the first contact arm and the second contact arm of the terminal contact piece can be simultaneously inserted into the conductive socket of the conductive piece of the track connector, the first contact arm and the second contact arm respectively elastically press against the two opposite inner side surfaces of the conductive socket of the conductive piece to form electrical conduction, and the stop steps on the first contact arm and the second contact arm stop the surface of the conductive piece to limit the insertion depth direction of the conductive piece.
[0005] As a further improvement of the present invention, the free ends of the first contact arm and the second contact arm of the terminal contact piece facing away from the terminal body are connected together, so that the terminal contact piece forms a frame-shaped structure with a hollow center.
[0006] As a further improvement of the present invention, the width of the hollow structure in the middle of the terminal contact piece at both ends along the length direction of the terminal contact piece is greater than the middle width, and the stop step is arranged opposite to the middle part of the hollow structure with a smaller width.
[0007] As a further improvement of the present invention, the side surfaces of the free end of the first contact arm and the free end of the second contact arm that are away from each other are both formed with chamfered structures.
[0008] As a further improvement of the present invention, a slope is formed on at least one of the left side of the first contact arm and the right side of the second contact arm, and the slope extends from the free ends of the first contact arm and the second contact arm toward the roots of the first contact arm and the second contact arm to the position of the stop step, and the slope causes the width of the terminal contact piece to gradually decrease from the free end toward the stop step.
[0009] As a further improvement of the present invention, a section of the side of the first contact arm away from the second contact arm from the stop step position toward the free end is a slope, and a section of the side of the second contact arm away from the first contact arm from the stop step position toward the free end is a straight surface parallel to the extension direction of the terminal contact piece, the stop step on the side of the first contact arm away from the second contact arm is a branch-like structure protruding outward from the side of the first contact arm, and the stop step on the side of the second contact arm away from the first contact arm is a step structure formed when the free end of the side of the second contact arm is closer to the first contact arm than the root.
[0010] As a further improvement of the present invention, two bilaterally symmetrical terminal contact pieces are formed at intervals on the terminal body, and the second contact arms of the two terminal contact pieces are close to each other.
[0011] As a further improvement of the present invention, an arc-shaped concave structure is formed at the roots of the side walls of the two terminal contact pieces that are away from each other.
[0012] As a further improvement of the present invention, the guide rail positioning hook includes a movable end hook and a fixed end hook that are integrally formed with the terminal body and have a cantilever structure. The free end of the fixed end hook forms a hook-shaped structure, and the hook-shaped structure and a side surface of the terminal body together form an L-shaped gap that matches the bent flange structure of the conductive track. The bent flange structure on one side of the conductive track can be slidably inserted into the L-shaped gap. A protrusion that can stop the side wall of the bent flange structure on the other side of the conductive track facing away from the terminal body is formed on the side wall of the movable end hook facing the fixed end hook. The movable end hook is also provided with an operating handle for pulling its elastic deformation so that the protrusion disengages from the conductive track.
[0013] As a further improvement of the present invention, the roots of the movable end hook and the fixed end hook are both located on the other side wall of the terminal body, and the movable end hook and the fixed end hook respectively bypass the two ends of the terminal body and go toward one side of the terminal body.
[0014] The beneficial effects of the present invention are as follows: the present invention designs the terminal contact piece into two elastically deformable contact arms, and the two elastic contact arms are in close contact with the two side walls of the conductive socket on the conductive piece to form a stable multi-point contact conduction. The present application sets two terminal contact pieces of this type on each terminal body, which greatly increases the number of contact points between the grounding terminal and the conductive piece, and can ensure stable conduction and signal transmission between the grounding terminal and the conductive piece, which is conducive to the transmission of large currents. The movable end hook and the fixed end hook of the guide rail positioning hook of the present invention are wrapped around from the other side of the terminal body to one side of the terminal body, reducing the space occupied on one side of the terminal body, and making full use of the space between the other side of the terminal body and the conductive piece, which is conducive to the compact design of the rail-type wiring connector, and the movable end hook has better elasticity and is more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is the main view of the utility model;
[0016] Figure 2 for Figure 1 Enlarged view of part A in the middle;
[0017] Figure 3 It is the principle diagram of the conductive sheet structure;
[0018] Figure 4 This is a three-dimensional diagram of the assembly state of the utility model and the conductive sheet;
[0019] Figure 5 This is a front view of the utility model in an assembled state with the conductive sheet;
[0020] Figure 6 This is a top view of the assembly state of the utility model and the conductive sheet. DETAILED DESCRIPTION
[0021] Embodiment: A grounding terminal with multiple contact points includes a terminal body 1 and a guide rail positioning hook, wherein the guide rail positioning hook is integrally formed on the terminal body 1, and the guide rail positioning hook can be slidably clamped on a conductive track located on one side of the terminal body 1 along the extension direction of the guide rail. The other side of the terminal body 1 is integrally formed with at least one terminal contact piece 2, and the terminal contact piece 2 is formed with a first contact arm 21 and a second contact arm 22 spaced apart along its width direction. The first contact arm 21 and the second contact arm 22 can respectively generate elastic deformation along the width direction of the terminal contact piece 2, and the ... A stop step 23 protruding along the width direction of the terminal contact piece 2 is formed on the side wall of at least one of the contact arms 21 and the second contact arm 22. The first contact arm 21 and the second contact arm 22 of the terminal contact piece 2 can be simultaneously inserted into the conductive socket 31 of the conductive piece 3 of the track connector. The first contact arm 21 and the second contact arm 22 are respectively elastically pressed against the two opposite inner side surfaces of the conductive socket 31 of the conductive piece 3 to form electrical conduction. The stop steps 23 on the first contact arm 21 and the second contact arm 22 stop on the surface of the conductive piece 3 to limit the depth direction of the insertion of the conductive piece 3.
[0022] When in use, the grounding terminal and the conductive sheet 3 are fixed in the plastic body of the connector. A plurality of positioning holes 11 are provided on the terminal body 1 of the grounding terminal for fixing the position in the plastic body of the connector. The terminal contact pieces 2 of the grounding terminal are inserted into the conductive socket 31 of the conductive sheet 3 one by one. The distance between the side walls of the first contact arm 21 and the second contact arm 22 on the terminal contact piece 2 that are away from each other is greater than the width of the conductive socket 31. Therefore, the side walls of the first contact arm 21 and the second contact arm 22 that are away from each other are respectively tightly connected to the two opposite side walls of the conductive socket 31 to achieve stable double-contact point conduction, and maintain a stable contact state for a long time. After assembly, the connector is installed on the conductive rail, and the guide rail positioning hook of the grounding terminal clamps the conductive rail to achieve electrical contact and conduction with the conductive rail, and can slide along the conductive rail to change its position.
[0023] The free ends of the first and second contact arms 21, 22 of the terminal contact piece 2, facing away from the terminal body 1, are connected together, forming a hollowed-out frame-shaped structure. This structure increases the overall strength of the first and second contact arms 21, 22 of the terminal contact piece 2 while also providing elasticity at the contact areas between the first and second contact arms 21, 22 and the conductive socket 31 of the conductive piece 3.
[0024] The hollow structure in the middle of the terminal contact piece 2 is wider at both ends along its length than in the middle, and the stop step 23 is positioned directly opposite the narrower middle portion of the hollow structure. This structure effectively ensures stable contact between the terminal contact piece 2 and the sidewalls of the conductive socket 31 of the conductive piece 3, preventing plastic deformation of the conductive portion of the terminal contact piece 2 in contact with the sidewalls of the conductive socket 31 after prolonged use.
[0025] The free ends of the first contact arm 21 and the second contact arm 22 are both formed with chamfered structures 24 , which are opposite to each other. The chamfered structures 24 facilitate smooth insertion of the terminal contact piece 2 into the conductive insertion hole 31 of the conductive piece 3 .
[0026] A slope 25 is formed on at least one of the left side of the first contact arm 21 and the right side of the second contact arm 22. The slope 25 extends from the free ends of the first and second contact arms 21, 22 toward the bases of the first and second contact arms 21, 22 to the stop step 23. The slope 25 gradually decreases the width of the terminal contact piece 2 from the free end toward the stop step 23. This structure ensures that after the terminal contact piece 2 is inserted into the conductive insertion hole 31 of the conductive piece 3, the conductive piece 3 automatically slides toward the stop step 23 of the terminal contact piece 2 and remains stably in this position without moving up and down, thereby improving contact stability.
[0027] The side of the first contact arm 21 away from the second contact arm 22, from the stop step 23 toward the free end, is a sloped surface 25. The side of the second contact arm 22 away from the first contact arm 21, from the stop step 23 toward the free end, is a straight surface 26 parallel to the extension direction of the terminal contact piece 2. The stop step 23 on the side of the first contact arm 21 away from the second contact arm 22 is a branch-like structure protruding outward from this side of the first contact arm 21. The stop step 23 on the side of the second contact arm 22 away from the first contact arm 21 is a step structure formed with the free end of this side of the second contact arm 22 closer to the first contact arm 21 than the root. The branch-like stop step 23 can provide more stable support for the conductive piece 3. The step-like stop step 23 occupies less space, which facilitates the compact design of multiple terminal contact pieces 2 of the grounding terminal.
[0028] The terminal body 1 is provided with two symmetrical terminal contact pieces 2 spaced apart from each other, with the second contact arms 22 of the two terminal contact pieces 2 being close to each other. The two symmetrically arranged terminal contact pieces 2 can provide four stable contact points, ensuring stable multi-point conduction between the conductive piece 3 and the ground terminal. More terminal contact pieces 2 can also be designed on the terminal body 1, depending on the actual space and structure.
[0029] The two terminal contact pieces 2 have arc-shaped concave structures 27 formed at their bases on the sidewalls facing away from each other. This structure allows the terminal contact pieces 2 to swing left and right elastically through the arc-shaped concave structures 27 at their bases, adapting to positional and dimensional deviations of the two conductive sockets 31 on the conductive piece 3.
[0030] The guide rail positioning hook includes a movable end hook 4 and a fixed end hook 5 that are integrally formed with the terminal body and have a cantilever structure. The free end of the fixed end hook 5 forms a hook-shaped structure. The hook-shaped structure and a side surface of the terminal body together form an L-shaped gap 51 that matches the bent flange structure of the conductive track. The bent flange structure on one side of the conductive track can be slidably inserted into the L-shaped gap. A protrusion 41 that can stop the side wall of the bent flange structure on the other side of the conductive track facing away from the terminal body is formed on the side wall of the movable end hook 4 facing the fixed end hook 5. The movable end hook 4 is also provided with an operating handle 42 for pulling its elastic deformation so that the protrusion 41 disengages from the conductive track. After the connector is installed on the conductive track, the fixed end hook 5 of the grounding terminal maintains a stable plug-in state with the bent flange of one side wall of the conductive track, and the movable end hook 4 of the grounding terminal maintains a stable plug-in contact state with the conductive track during normal use. When disassembling the connector, the movable end hook 4 can be opened by pulling the operating handle 42, and then the connector can be removed from the conductive track.
[0031] The roots of the movable end hook 4 and the fixed end hook 5 are both located on the other side wall of the terminal body. The movable end hook 4 and the fixed end hook 5 respectively go around the two ends of the terminal body to one side of the terminal body.
[0032] The roots of the movable end hook 4 and the fixed end hook 5 are designed on the other side wall of the terminal body. The free ends of the movable end hook 4 and the fixed end hook 5 bypass the terminal body and reach one side of the terminal body to achieve connection with the conductive track. This structure makes full use of the gap between the grounding terminal and the conductive sheet 3, which is beneficial to reducing the overall height of the connector and making the movable end hook 4 more elastic and easier to operate.
Claims
1. A grounding terminal with multiple contact points, comprising a terminal body (1) and a guide rail positioning hook, wherein the guide rail positioning hook is integrally formed on the terminal body, and the guide rail positioning hook is capable of sliding along the extension direction of the guide rail and is clamped on a conductive track located on one side of the terminal body, characterized in that: At least one terminal contact piece (2) is integrally formed on the other side of the terminal body, and the terminal contact piece is formed with a first contact arm (21) and a second contact arm (22) spaced apart along its width direction, the first contact arm and the second contact arm can respectively generate elastic deformation along the width direction of the terminal contact piece, and a stop step (23) protruding along the width direction of the terminal contact piece is formed on at least one side wall of the first contact arm and the second contact arm, the first contact arm and the second contact arm of the terminal contact piece can be simultaneously inserted into the conductive socket (31) of the conductive piece (3) of the track connector, the first contact arm and the second contact arm respectively elastically press against the two opposite inner sides of the conductive socket of the conductive piece to form electrical conduction, and the stop steps on the first contact arm and the second contact arm stop on the surface of the conductive piece to limit the insertion depth direction of the conductive piece.
2. The multi-contact grounding terminal according to claim 1, characterized in that: The free ends of the first contact arm and the second contact arm of the terminal contact piece facing away from the terminal body are connected together, so that the terminal contact piece forms a frame-shaped structure with a hollow center.
3. The multi-contact grounding terminal according to claim 2, characterized in that: The width of the hollow structure in the middle of the terminal contact piece at both ends along the length direction of the terminal contact piece is greater than the width in the middle, and the stop step is arranged opposite to the middle part of the hollow structure with a smaller width.
4. The multi-contact grounding terminal according to claim 1 or 2, characterized in that: The side surfaces of the free end of the first contact arm and the free end of the second contact arm that are away from each other are both formed with chamfered structures (24).
5. The multi-contact grounding terminal according to claim 1 or 2, characterized in that: A slope (25) is formed on at least one of the left side of the first contact arm and the right side of the second contact arm, and the slope extends from the free ends of the first contact arm and the second contact arm toward the roots of the first contact arm and the second contact arm to the position of the stop step, and the slope causes the width of the terminal contact piece to gradually decrease from the free end toward the stop step.
6. The multi-contact grounding terminal according to claim 5, characterized in that: A section of the side of the first contact arm away from the second contact arm from the stop step position toward the free end is an inclined surface, and a section of the side of the second contact arm away from the first contact arm from the stop step position toward the free end is a straight surface (26) parallel to the extension direction of the terminal contact piece, the stop step on the side of the first contact arm away from the second contact arm is a branch-like structure protruding outward from the side of the first contact arm, and the stop step on the side of the second contact arm away from the first contact arm is a step structure formed by the free end of the side of the second contact arm being closer to the first contact arm than the root.
7. The multi-contact grounding terminal according to claim 6, characterized in that: Two bilaterally symmetrical terminal contact pieces are formed on the terminal body at intervals, and the second contact arms of the two terminal contact pieces are close to each other.
8. The multi-contact grounding terminal according to claim 7, characterized in that: The roots of the side walls of the two terminal contact pieces that are away from each other are formed with an arc-shaped concave structure (27).
9. The multi-contact grounding terminal according to claim 1, characterized in that: The guide rail positioning hook comprises a movable end hook (4) and a fixed end hook (5) which are integrally formed with the terminal body and have a cantilever structure. The free end of the fixed end hook forms a hook-shaped structure. The hook-shaped structure and a side surface of the terminal body together form an L-shaped gap (51) that matches the bent flange structure of the conductive track. The bent flange structure on one side of the conductive track can be slidably inserted into the L-shaped gap. A protrusion (41) that can stop the side wall of the bent flange structure on the other side of the conductive track facing away from the terminal body is formed on the side wall of the movable end hook facing the fixed end hook. The movable end hook is also provided with an operating handle (42) for pulling its elastic deformation so that the protrusion is separated from the conductive track.
10. The multi-contact grounding terminal according to claim 9, characterized in that: The roots of the movable end hook and the fixed end hook are both located on the other side wall of the terminal body, and the movable end hook and the fixed end hook respectively go around the two ends of the terminal body to one side of the terminal body.