Anti-corrosion spring wire harness and joint seal structure thereof

By spraying a polytetrafluoroethylene coating onto the outer wall of the wire harness and designing sealing components, the corrosion and sealing problems of the wire harness in special environments were solved, thereby improving corrosion resistance and joint sealing, extending service life, and enhancing structural strength.

CN224328524UActive Publication Date: 2026-06-05JIANGSU LILI ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LILI ELECTRONICS CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing wire harnesses are prone to corrosion in special environments, have insufficient structural strength, and poor sealing at joint connections, which affects their service life and safety.

Method used

The outer wall of the wire harness is coated with polytetrafluoroethylene and designed with a spiral structure. A sealing component is set at the joint, including a sealing shell, an adjustment knob, a sealing sleeve and a sealing ring. Stable sealing is achieved through the cooperation of slide bars, blocks and grooves.

Benefits of technology

It improves the corrosion resistance and structural strength of the wire harness, enhances the sealing of the connectors, extends the service life, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anticorrosive spring wire harness and joint sealing structure thereof, including the wire harness body, the outer wall of wire harness body has been sprayed with the corrosion -resistant layer, and the corrosion -resistant layer is polytetrafluoroethylene coating, and the thickness is 0.1 03mm, wire harness body whole presents helical shape setting, and have the ductility tensile elasticity setting, the one end of wire harness body is electrically connected with the male head, and its other end electrically connected with the female head of adapting to the male head. The utility model discloses through the polytetrafluoroethylene corrosion -resistant coating of spraying on the outer wall of spring wire harness, makes spring wire harness in long -time use can reduce the external environment to the wire harness outer wall's overlooking damage, and then improves the service life of whole spring wire harness, is provided with the sealing assembly in the connecting end of spring wire harness, makes it can seal the junction of wire harness and joint, prevents the damage caused by the bending or adsorbing dust or water in use to the junction.
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Description

Technical Field

[0001] This utility model relates to the field of wire harness application technology, and in particular to an anti-corrosion spring wire harness and its joint sealing structure. Background Technology

[0002] A wire harness is a wiring component that connects various electrical devices in a circuit. It consists of an insulating sheath, terminals, wires, and insulating wrapping materials.

[0003] In some special environments, such as chemical plants and seaside areas, wire harnesses are susceptible to corrosion, which can affect their service life and safety. In addition, wire harnesses may be subjected to external forces such as stretching and bending during use, and if the structural strength is insufficient, they are prone to damage.

[0004] Meanwhile, in the use of existing wire harnesses, the connection points are generally exposed without being sealed, which allows the external environment to interfere with their normal use.

[0005] Therefore, this utility model proposes a corrosion-resistant spring wire harness and its joint sealing structure. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a corrosion-resistant spring wire harness and its joint sealing structure, so as to solve the problems of poor corrosion resistance, insufficient structural strength, tensile strength and sealing at the joint connection of the wire harness in the prior art.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a corrosion-resistant spring wire harness, including a wire harness body, wherein the outer wall of the wire harness body is coated with a corrosion-resistant layer, and the corrosion-resistant layer is a polytetrafluoroethylene coating with a thickness of 0.1-0.3 mm;

[0008] The wire harness body is spirally shaped and has an elastic extension and stretching feature. One end of the wire harness body is electrically connected to a male connector, and the other end is electrically connected to a female connector that is compatible with the male connector.

[0009] By applying the above technical solution to the outer wall of the spring wire harness with a PTFE corrosion-resistant coating, the corrosion resistance of the wire harness during use can be effectively improved, thereby increasing the service life of the entire wire harness. Furthermore, the spiral elastic design allows for extension and stretching operations, improving the convenience of use.

[0010] Meanwhile, a connector sealing structure for a corrosion-resistant spring wire harness is provided, including sealing components respectively sleeved on the outer walls of the male and female connectors. The sealing components include a sealing shell, an adjustment knob rotatably connected to the rear end of the sealing shell, a sealing sleeve threadedly connected to the inner wall of the adjustment knob, and the sealing sleeve extending into the interior of the sealing shell.

[0011] By rotating the adjustment knob, the sealing sleeve with internal thread connection moves on the outer wall of the wire harness, so that one end of it abuts against one end of the male or female connector, and a stable seal is achieved under the interlocking connection of the sealing sleeve and the male or female connector.

[0012] The present invention is further configured such that: a slide bar is symmetrically fixedly connected to the middle position of the inner side wall of the sealing shell, and a locking block is provided on the end face of each slide bar; the outer walls of the male and female heads are provided with slide grooves that match the slide bar; the end face of the slide groove is provided with a locking slot, and the locking block can be engaged and connected to the locking slot.

[0013] The above technical solution facilitates the sliding connection of the sealing shell along the slide groove using the slide bar during installation, and achieves connection and fixation through the locking action of the locking block and the slot.

[0014] The present invention is further configured such that the end faces of the card blocks are all inclined and have elastic properties.

[0015] The above technical solution facilitates the use of the sliding groove to compress the sealing shell during installation, thereby ensuring stable pushing of the sealing shell during installation.

[0016] The present invention is further configured such that: the outer wall of the sealing sleeve is provided with a plurality of adapting holes in the circumferential direction near the end face, and the plurality of adapting holes are all arranged in a rhombus shape.

[0017] The above technical solution allows the sealing sleeve to be squeezed using multiple adapting holes when it is driven and tightened, and to use its squeezed and reset elasticity to form a relative limit fixation with the adjustment knob.

[0018] The present invention is further configured such that: one end of the sealing sleeve is driven to rotate by adjusting the knob and then pressed against the end faces of the male and female heads, while the other end is folded up and its inner wall is tightly wrapped around the outer wall of the wire harness body.

[0019] The above technical solution allows one end of the sealing sleeve to be pressed against the end face of the male or female connector when the sealing sleeve is driven and fixed, thereby fixing the position of the sealing sleeve. At the same time, the folding setting can improve the sealing performance between the end face of the sealing sleeve and the wire harness, and further enhance the positioning effect.

[0020] The present invention is further configured such that a sealing ring is engaged with the inner wall of the sealing sleeve near the end face.

[0021] The above technical solution allows the sealing sleeve to further enhance the seal by using a sealing ring when sealing the wire harness connection, effectively sealing against liquid entering the sealing sleeve port if it is damaged.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. The anti-corrosion spring wire harness and its joint sealing structure proposed in this utility model are made by spraying a polytetrafluoroethylene corrosion-resistant coating on the outer wall of the spring wire harness, which reduces the top-view damage of the wire harness outer wall caused by the external environment during long-term use, thereby improving the service life of the entire spring wire harness.

[0024] 2. The anti-corrosion spring wire harness and its joint sealing structure proposed in this utility model are provided with a sealing component at the connection end of the spring wire harness, which can seal the connection between the wire harness and the joint, and prevent damage caused by bending, dust adsorption or water ingress during use. Attached Figure Description

[0025] Figure 1 This is a first structural diagram of an anti-corrosion spring wire harness and its joint sealing structure according to the present invention;

[0026] Figure 2 This is an exploded view of an anti-corrosion spring wire harness and its joint sealing structure according to the present invention.

[0027] Figure 3 This is a second structural diagram of an anti-corrosion spring wire harness and its joint sealing structure according to the present invention;

[0028] Figure 4 This is a structural diagram of the sealing component in the anti-corrosion spring wire harness and its joint sealing structure of this utility model;

[0029] Figure 5 This is a first exploded view of the sealing component in the anti-corrosion spring wire harness and its joint sealing structure of this utility model;

[0030] Figure 6 This is a second exploded view of the sealing component in the anti-corrosion spring wire harness and its joint sealing structure of this utility model.

[0031] In the diagram: 1. Wire harness body; 2. Male connector; 3. Female connector; 31. Slide groove; 32. Slot; 4. Sealing assembly; 41. Sealing shell; 42. Slide bar; 43. Locking block; 44. Adjustment knob; 45. Sealing sleeve; 451. Adaptation hole; 46. Sealing ring. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0033] like Figures 1-3 As shown, a corrosion-resistant spring wire harness includes a wire harness body 1. The outer wall of the wire harness body 1 is coated with a corrosion-resistant layer, which is a polytetrafluoroethylene (PTFE) coating with a thickness of 0.1-0.3 mm. The wire harness body 1 is arranged in a spiral shape and has an elastic extension and tension setting. One end of the wire harness body 1 is electrically connected to a male connector 2, and the other end is electrically connected to a female connector 3 that is compatible with the male connector 2. The PTFE corrosion-resistant coating on the outer wall of the spring wire harness can effectively improve the corrosion resistance of the wire harness during use, thereby increasing the service life of the entire wire harness. In addition, its spiral elastic setting allows for extension and tension operations, improving the convenience of use.

[0034] like Figures 1-6 As shown, a sealing structure for a corrosion-resistant spring wire harness connector includes a sealing assembly 4 respectively fitted onto the outer walls of the male connector 2 and the female connector 3. The sealing assembly 4 includes a sealing shell 41. Sliding strips 42 are symmetrically fixedly connected to the middle of the inner side wall of the sealing shell 41. Each end face of the sliding strip 42 is provided with a locking block 43. The end face of the locking block 43 is inclined and elastic, so that the sealing shell 41 can be squeezed by the sliding groove 31 when it is installed, thereby facilitating the stable pushing of the sealing shell 41 during installation. The outer walls of the male connector 2 and the female connector 3 are provided with sliding grooves 31 that match the sliding strips 42. The end face of the sliding groove 31 is provided with a locking groove 32, and the locking block 43 can be locked into the locking groove 32, so that the sealing shell 41 can be slidably connected along the sliding groove 31 by the sliding strip 42 when it is installed, and the connection and fixation are achieved by the locking action of the locking block 43 and the locking groove 32.

[0035] An adjusting knob 44 is rotatably connected to the rear end of the sealing shell 41. A sealing sleeve 45 is threadedly connected to the inner wall of the adjusting knob 44, and the sealing sleeve 45 extends into the interior of the sealing shell 41. Rotating the adjusting knob 44 causes the internally threaded sealing sleeve 45 to move on the outer wall of the wire harness, thereby pressing one end of it against one end of the male connector 2 or female connector 3. Stable sealing and fixing are achieved through the engaging connection between the sealing sleeve 45 and the male connector 2 or female connector 3. The outer wall of the sealing sleeve 45 has multiple adapting holes 451 circumferentially opened near the end face, and the multiple adapting holes 451 are all diamond-shaped. This allows the sealing sleeve 45 to be squeezed through the multiple adapting holes 451 when it is driven and pressed, and to use its squeezing and restoring elasticity to cooperate with the adjusting knob 44 to form a phase. For the limiting and fixing, one end of the sealing sleeve 45 is driven by the adjustment knob 44 to press against the end face of the male head 2 and the female head 3, while the other end is folded up. Its inner wall tightly wraps around the outer wall of the wire harness body 1, so that when the sealing sleeve 45 is driven and fixed, one end can press against the end face of the male head 2 or the female head 3, thereby fixing the position of the sealing sleeve 45. At the same time, the folded setting can improve the sealing between the end face of the sealing sleeve 45 and the wire harness and further enhance the positioning effect. The inner wall of the sealing sleeve 45 is engaged with a sealing ring 46 near the end face, so that when the sealing sleeve 45 seals the wire harness connection, it can be further sealed by the sealing ring 46 to effectively seal the liquid that enters when the port of the sealing sleeve 45 is damaged.

[0036] In use, the sealing component 4 is first fitted onto the wire harness, and then the male connector 2 and the female connector 3 are respectively connected to the two ends of the wire harness body 1. Next, the sealing shell 41 slides along the slide groove 31 using the slide bar 42, and is connected and fixed under the action of the locking block 43 and the locking groove 32. Finally, the adjusting knob 44 is rotated to move the internally threaded sealing sleeve 45 on the outer wall of the wire harness, so that one end of it is pressed against one end of the male connector 2 or the female connector 3, and a stable sealing and fixing is achieved under the action of the locking connection between the sealing sleeve 45 and the male connector 2 or the female connector 3.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A corrosion-resistant spring wire harness, comprising a wire harness body (1), characterized in that: The outer wall of the wire harness body (1) is coated with a corrosion-resistant layer, which is a polytetrafluoroethylene coating with a thickness of 0.1-0.3 mm. The wire harness body (1) is spirally arranged and has an elastic extension and stretching function. One end of the wire harness body (1) is electrically connected to a male connector (2), and the other end is electrically connected to a female connector (3) that is compatible with the male connector (2).

2. A joint sealing structure, applied to the corrosion-resistant spring wire harness of claim 1, comprising sealing components (4) respectively sleeved on the outer walls of the male connector (2) and the female connector (3), characterized in that: The sealing assembly (4) includes a sealing shell (41), the rear end of which is rotatably connected to an adjustment knob (44), the inner wall of which is threadedly connected to a sealing sleeve (45), and the sealing sleeve (45) extends into the interior of the sealing shell (41).

3. The joint sealing structure according to claim 2, characterized in that: The inner wall of the sealing shell (41) is symmetrically fixed with a slide bar (42) at the middle position. The end face of the slide bar (42) is provided with a locking block (43). The outer wall of the male head (2) and the female head (3) is provided with a slide groove (31) that matches the slide bar (42). The end face of the slide groove (31) is provided with a locking groove (32), and the locking block (43) can be locked into the locking groove (32).

4. The joint sealing structure according to claim 3, characterized in that: The end faces of the card blocks (43) are all inclined and have elastic features.

5. A joint sealing structure according to claim 3, characterized in that: The outer wall of the sealing sleeve (45) is provided with multiple adapting holes (451) in the circumferential direction near the end face, and the multiple adapting holes (451) are all arranged in a rhombus shape.

6. A joint sealing structure according to claim 5, characterized in that: One end of the sealing sleeve (45) is driven to rotate by the adjustment knob (44) and then pressed against the end face of the male head (2) and the female head (3). The other end is folded up and its inner wall is tightly wrapped around the outer wall of the wire harness body (1).

7. A joint sealing structure according to claim 6, characterized in that: A sealing ring (46) is engaged with the inner wall of the sealing sleeve (45) near the end face.