Wire harness connector terminal sheath

By designing a sliding locking structure for the terminal sleeve of the wire harness connector, the problems of easy loss of retaining parts and cumbersome installation were solved, achieving the effects of simplified operation and improved contact stability.

CN224138392UActive Publication Date: 2026-04-17WENZHOU HUIDA ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU HUIDA ELECTRIC CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The retaining parts of existing wire harness connectors are easily lost or the installation process is cumbersome, which affects system stability.

Method used

Design a wire harness connector terminal sleeve that uses a sliding block, support plate, locking post and fixing component to achieve sliding lock fixation between the sleeve and the retainer, avoiding complete separation, simplifying the installation process, and providing constant clamping force through the locking plate and spring to prevent the terminal wire from loosening.

Benefits of technology

It effectively avoids the loss of retaining parts, simplifies the operation process, improves the stability of terminal contact, adapts to wires of different diameters, and enhances system stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224138392U_ABST
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Abstract

The utility model relates to the technical field of electrical connectors, and discloses a wire harness connector terminal sheath which comprises a sheath body, the lower surface of the sheath body is fixedly connected with a fixed frame, the lower surface of the fixed frame is fixedly connected with a sliding frame, the sliding frame is internally provided with a sliding groove, and the sliding groove is internally provided with a wire harness. A sliding block is slidably connected to the inner wall of the sliding frame, the outer wall of the sliding block is slidably connected to the inner wall of the sliding groove, a limiting plate is fixedly connected to the outer wall of one side of the sliding block, a supporting plate is fixedly connected to the outer wall of the other side of the sliding block, and a clamping column is fixedly connected to the upper surface of the supporting plate. According to the utility model, through the mutual cooperation of the sheath body, the fixed frame, the sliding frame, the sliding groove, the sliding block, the limiting plate, the supporting plate and the clamping column, the sheath body and the supporting plate cannot be completely separated, the sheath body can be pushed along the sliding groove during installation, and the effects of avoiding loss and simplifying the operation process are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a terminal sleeve for a wire harness connector. Background Technology

[0002] Wire harness connectors are an indispensable component of electrical systems, and their reliability directly affects the stability of the entire system. With the increasing complexity of electronic devices, the number of terminals on wire harness connectors is constantly increasing, making the design of the sheaths more complex. Existing sheaths are typically used with retainers, which use a push rod inserted into a through-hole in the sheath to limit the terminal and prevent it from coming out.

[0003] A search revealed Chinese patent publication number CN217086963U, which discloses a flame-retardant wiring harness sheath for new energy vehicles. The sheath includes a first sheath tube disposed at the center of the wiring harness and second sheath tubes disposed at both ends of the first sheath tube. The second sheath tubes are positioned corresponding to the wiring harness connection terminals at both ends of the wiring harness. The inner diameter of the second sheath tube is larger than that of the first sheath tube, forming a dumbbell structure. A positioning ring is disposed on the outer wall of the second sheath tube, and a positioning component is disposed on the positioning ring. Both the first and second sheath tubes are sequentially provided with a first waterproof layer, a first flame-retardant layer, a second waterproof layer, and a second flame-retardant layer from the inside out. This flame-retardant wiring harness sheath for new energy vehicles has the advantages of scientific design, ease of use, and good protective effect, making it suitable for use in the field of wiring harness protection for new energy vehicles, reducing wear on the wiring harness, especially at the wiring harness connection points.

[0004] There are two main ways to assemble existing sheaths and retainers: one is to store them completely separately and assemble them temporarily when needed; the other is to pre-assemble them before carrying them. Although the first method avoids the problem of pre-assembly, it is easy to cause incorrect specifications or omissions when carrying them. Although the second method reduces the error when carrying them, it requires removing the retainer before formal assembly, and then reinstalling it after the terminal is inserted. This operation is cumbersome and the retainer is easy to lose. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a wire harness connector terminal sleeve, which aims to improve the problems of easy loss of retainers or cumbersome installation of retainers.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A wire harness connector terminal sleeve includes a sleeve body, a fixing frame fixedly connected to the lower surface of the sleeve body, a sliding frame fixedly connected to the lower surface of the fixing frame, a sliding groove formed inside the sliding frame, a sliding block slidably connected to the inner wall of the sliding frame, the outer wall of the sliding block slidably connected to the inner wall of the sliding groove, a limit plate fixedly connected to one side of the outer wall of the sliding block, a support plate fixedly connected to the other side of the outer wall of the sliding block, a locking post fixedly connected to the upper surface of the support plate, and a fixing component provided on the outer wall of the sleeve body.

[0008] The above technical solution allows the sliding block to slide, which in turn drives the support plate to slide. The limiting plate can limit the sliding block, ensuring its stability. By restricting the support plate within the sliding range of the sliding block, the sheath and retainer are fixed by a sliding lock without needing to be completely separated, thus preventing the retainer from being lost. When the retainer needs to be installed, the support plate can simply be pushed along the sliding groove.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a locking block, the outer wall of which is fixedly connected to the outer wall of the sheath body, and a locking groove is formed inside the locking post, with the outer wall of the locking block set on the inner wall of the locking groove.

[0011] With the above technical solution: when the support plate slides upward, it will also drive the locking post to move upward. Through the plastic elasticity of the locking post, the locking block slides to the inner wall of the slot, achieving the effect of fastening and fixing.

[0012] As a further description of the above technical solution:

[0013] A top plate is fixedly connected to the upper surface of the support plate, and a rotating column is fixedly connected to the inner wall of the top plate.

[0014] Through the above technical solution, the support plate can fix the top plate, and thus fix the rotating column.

[0015] As a further description of the above technical solution:

[0016] A clamping plate is rotatably connected to the outer wall of the rotating column, and a spring is fixedly connected to the inner wall of the top plate. The outer wall of the spring is disposed on the outer wall of the clamping plate.

[0017] The above technical solution allows the spring force to push the card plate to rotate on the outer wall of the rotating column, thereby pressing against the terminal body.

[0018] As a further description of the above technical solution:

[0019] A connecting rod is slidably connected to the inner wall of the fixed frame, and a handle is fixedly connected to one end of the connecting rod.

[0020] The above technical solution allows the connecting rod to slide by pulling the handle.

[0021] As a further description of the above technical solution:

[0022] The other end of the connecting rod is fixedly connected to a second clamping plate, and the outer wall of the second clamping plate is slidably connected to the inner wall of the fixed frame.

[0023] The above technical solution allows the handle to slide along the inner wall of the fixed frame by sliding the connecting rod.

[0024] As a further description of the above technical solution:

[0025] A spring is fixedly connected to the outer wall of the second card plate, and the outer wall of the spring is fixedly connected to the inner wall of the fixed frame.

[0026] Through the above technical solution, spring two can push the card plate two to slide by elastic force.

[0027] As a further description of the above technical solution:

[0028] The sheath body has an insertion hole inside, and a terminal body is provided on the inner wall of the sheath body. The outer wall of the terminal body is provided on the inner wall of the insertion hole, and the outer wall of the terminal body is provided on the outer wall of the first card plate and the second card plate.

[0029] The above technical solution allows the spring force of spring two to push the clamping plate two against the terminal body. The clamping force of clamping plate one and clamping plate two provides a certain clamping force on the terminal body. When it is necessary to release the clamping force, the connecting rod pulls clamping plate two to slide, thereby releasing the clamping force on the terminal body.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, through the mutual cooperation between the sheath body, the fixed frame, the sliding frame, the sliding groove, the sliding block, the limiting plate, the support plate and the locking post, the sheath body and the support plate will not be completely separated. During installation, it can be pushed along the sliding groove, thus avoiding loss and simplifying the operation process.

[0032] 2. In this utility model, through the mutual cooperation of the top plate, rotating column, clamping plate one, spring one, connecting rod, handle, clamping plate two, spring two, insertion hole and terminal body, a constant clamping force is provided to the terminal body, which can not only prevent the terminal wire from loosening and improve contact stability, but also adapt to wires of different diameters and improve adaptability. Attached Figure Description

[0033] Figure 1 This is a perspective view of a wire harness connector terminal sleeve proposed in this utility model;

[0034] Figure 2 This is a partial structural diagram of the retaining post of a wire harness connector terminal sleeve proposed in this utility model;

[0035] Figure 3 This is a partial structural diagram of a clamping plate for a wire harness connector terminal sheath proposed in this utility model;

[0036] Figure 4 This is a partial structural diagram of the card plate of the wire harness connector terminal sleeve proposed in this utility model.

[0037] Legend:

[0038] 1. Sheath body; 2. Fixing frame; 3. Sliding frame; 4. Sliding groove; 5. Sliding block; 6. Limiting plate; 7. Support plate; 8. Locking post; 9. Fixing assembly; 901. Locking block; 902. Locking groove; 10. Top plate; 11. Rotating post; 12. Locking plate one; 13. Spring one; 14. Connecting rod; 15. Handle; 16. Locking plate two; 17. Spring two; 18. Insertion hole; 19. Terminal body. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a wire harness connector terminal sleeve, including a sleeve body 1, a fixing frame 2 fixedly connected to the lower surface of the sleeve body 1, a sliding frame 3 fixedly connected to the lower surface of the fixing frame 2, a sliding groove 4 opened inside the sliding frame 3, a sliding block 5 slidably connected to the inner wall of the sliding frame 3, the outer wall of the sliding block 5 slidably connected to the inner wall of the sliding groove 4, a limit plate 6 fixedly connected to one side of the outer wall of the sliding block 5, a support plate 7 fixedly connected to the other side of the outer wall of the sliding block 5, a locking post 8 fixedly connected to the upper surface of the support plate 7, and a fixing component 9 provided on the outer wall of the sleeve body 1; the fixing component 9 includes a locking block 901, the outer wall of the locking block 901 fixedly connected to the outer wall of the sleeve body 1, a locking groove 902 opened inside the locking post 8, and the outer wall of the locking block 901 disposed on the inner wall of the locking groove 902;

[0041] Specifically, the sheath body 1 provides fixed support for the fixed frame 2, which in turn provides fixed support for the sliding frame 3. The sliding groove 4 also limits the sliding of the sliding block 5, while the limiting plate 6 provides limited support for the sliding block 5. When the support plate 7 is pushed to slide, the sliding block 5 will also slide along the inner wall of the sliding groove 4. The sliding position of the sliding block 5 limits the movement of the support plate 7, preventing the sheath body 1 from completely separating from the retainer and avoiding the loss of the retainer. During installation, the operator does not need to find or install the retainer separately; they only need to push the retainer along the sliding groove 4. This is faster and simplifies the operation process than the traditional "completely separate" assembly method. When the support plate 7 slides upward and merges with the sheath body 1, the locking post 8 also slides upward. Through the plastic elasticity of the locking post 8, the locking block 901 can slide to the inner wall of the locking groove 902 to achieve a fixing effect.

[0042] Reference Figure 1 and Figure 3 A top plate 10 is fixedly connected to the upper surface of the support plate 7, and a rotating column 11 is fixedly connected to the inner wall of the top plate 10; a clamping plate 12 is rotatably connected to the outer wall of the rotating column 11, and a spring 13 is fixedly connected to the inner wall of the top plate 10; the outer wall of the spring 13 is set on the outer wall of the clamping plate 12.

[0043] Specifically, the support plate 7 can provide fixed support for the top plate 10, and the top plate 10 can provide fixed support for the rotating column 11 and the spring 13. The elastic force of the spring 13 can push the clamping plate 12 to move. Due to the limiting of the rotating column 11, the movement of the clamping plate 12 is changed to rotating around the rotating column 11. The movement of the clamping plate 12 can hold the terminal body 19.

[0044] Reference Figure 4 A connecting rod 14 is slidably connected to the inner wall of the fixed frame 2, and a handle 15 is fixedly connected to one end of the connecting rod 14; a second clamping plate 16 is fixedly connected to the other end of the connecting rod 14, and the outer wall of the second clamping plate 16 is slidably connected to the inner wall of the fixed frame 2; a second spring 17 is fixedly connected to the outer wall of the second clamping plate 16, and the outer wall of the second spring 17 is fixedly connected to the inner wall of the fixed frame 2; an insertion hole 18 is opened inside the sheath body 1, and a terminal body 19 is provided on the inner wall of the sheath body 1, and the outer wall of the terminal body 19 is provided on the inner wall of the insertion hole 18. The outer walls of the terminal body 19 are all provided on the outer walls of the first clamping plate 12 and the second clamping plate 16.

[0045] Specifically, the fixed frame 2 supports the connecting rod 14, ensuring its stable sliding. The connecting rod 14, in turn, provides fixed support for the handle 15. When the handle 15 is pulled, it causes the connecting rod 14 to slide, which in turn causes the second clamping plate 16 to slide. When sliding backward, the clamping of the terminal body 19 is released. When the second clamping plate 16 needs to press against the terminal body 19, the spring force of the second spring 17 can push the second clamping plate 16 to slide, thus clamping the terminal body 19. The bidirectional pressing of the terminal body 19 by the first clamping plate 12 and the second clamping plate 16 provides a constant clamping force, which not only prevents the terminal wire from loosening and improves contact stability, but also adapts to wires of different diameters, improving adaptability.

[0046] Working principle: When the sheath is needed, first slide the support plate 7 to the bottom of the inner wall of the sliding groove 4. Then, insert the terminal body 19 into the inner wall of the socket 18 through the opening. Then push the support plate 7 along the sliding groove 4. The locking block 901 is locked into the inner wall of the slot 902 by the locking post 8. This simplifies the operation process. At the same time, the sliding groove 4 limits the support plate 7, so that the support plate 7 cannot be completely separated from the sheath body 1, and the loss of the support plate 7 can be avoided.

[0047] When the terminal body 19 needs to be clamped, the spring 13 can push the clamping plate 12 to rotate on the outer wall of the rotating column 11, providing a pushing force on one side of the terminal body 19. At the same time, the elastic force of the spring 17 can provide a pushing force on the clamping plate 16 on the other side of the terminal body 19, thus achieving the clamping effect. When it is necessary to release the clamping effect, simply pull the handle 15 to drive the connecting rod 14 to slide, which in turn drives the clamping plate 16 to slide away from the outer wall of the terminal body 19, thereby releasing the clamping of the terminal body 19. Through the bidirectional pressing of the clamping plate 12 and the clamping plate 16 on the terminal body 19, a constant clamping force can be provided, which can not only prevent the terminal wire from loosening and improve contact stability, but also adapt to wires of different diameters, thus improving adaptability.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring harness connector terminal boot comprising a boot body (1), characterized in that: A fixed frame (2) is fixedly connected to the lower surface of the sheath body (1), and a sliding frame (3) is fixedly connected to the lower surface of the fixed frame (2). A sliding groove (4) is provided inside the sliding frame (3). A sliding block (5) is slidably connected to the inner wall of the sliding frame (3). The outer wall of the sliding block (5) is slidably connected to the inner wall of the sliding groove (4). A limit plate (6) is fixedly connected to one side of the outer wall of the sliding block (5). A support plate (7) is fixedly connected to the other side of the outer wall of the sliding block (5). A locking post (8) is fixedly connected to the upper surface of the support plate (7). A fixing component (9) is provided on the outer wall of the sheath body (1).

2. A wire harness connector terminal boot according to claim 1, wherein: The fixing component (9) includes a locking block (901), the outer wall of which is fixedly connected to the outer wall of the sheath body (1), and a locking groove (902) is provided inside the locking post (8), and the outer wall of the locking block (901) is set on the inner wall of the locking groove (902).

3. A wire harness connector terminal boot according to claim 2, wherein: The upper surface of the support plate (7) is fixedly connected to a top plate (10), and the inner wall of the top plate (10) is fixedly connected to a rotating column (11).

4. A wire harness connector terminal boot according to claim 3, wherein: The outer wall of the rotating column (11) is rotatably connected to a clamping plate (12), and the inner wall of the top plate (10) is fixedly connected to a spring (13). The outer wall of the spring (13) is set on the outer wall of the clamping plate (12).

5. A wire harness connector terminal boot according to claim 4, wherein: The inner wall of the fixed frame (2) is slidably connected to a connecting rod (14), and one end of the connecting rod (14) is fixedly connected to a handle (15).

6. A wire harness connector terminal boot according to claim 5, wherein: The other end of the connecting rod (14) is fixedly connected to the second card plate (16), and the outer wall of the second card plate (16) is slidably connected to the inner wall of the fixed frame (2).

7. A wire harness connector terminal boot according to claim 6, wherein: The outer wall of the card plate 2 (16) is fixedly connected to the spring 2 (17), and the outer wall of the spring 2 (17) is fixedly connected to the inner wall of the fixed frame (2).

8. A wire harness connector terminal boot according to claim 1, wherein: The sheath body (1) has an insertion hole (18) inside. The inner wall of the sheath body (1) is provided with a terminal body (19). The outer wall of the terminal body (19) is provided on the inner wall of the insertion hole (18). The outer walls of the terminal body (19) are all provided on the outer walls of the first card plate (12) and the second card plate (16).

Citation Information

Patent Citations

  • Flame-retardant wire harness sheath for new energy automobile

    CN217086963U