Cylinder penetrating part with short circuit prevention isolation structure

Abstract

The utility model relates to the technical field of automobile accessories. A cylinder penetrating piece with a short circuit prevention isolation structure comprises a cylinder penetrating piece body, and the cylinder penetrating piece body comprises a sleeve part and a threading part which are sequentially connected from front to back in the axial direction. The outer wall of the sleeve part is provided with a positioning protrusion extending outwards in the radial direction. The threading part is provided with a through hole through which a wire passes; a blind hole with an opening in the rear end is formed in the threading part; and an anti-short-circuit isolation structure is fixed on the axial end face of the threading part, the anti-short-circuit isolation structure is located in the sleeve part, the anti-short-circuit isolation structure comprises a separation part used for separating the adjacent penetrating holes, the separation part is located between the adjacent penetrating holes, and the axial length of the separation part does not exceed the axial length of the sleeve part. According to the utility model, physical separation of the adjacent wires is realized by additionally arranging the separation part, and the risk that the wire core exposed areas of the adjacent wires are connected in series with circuits is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to cylinder penetration parts. Background Technology

[0002] Existing cylinder guide components have wire holes through which the wire harness passes. These existing components simply have wire holes, separating adjacent wire harnesses. However, there are areas on the wire harness where the wire core is exposed. If this exposed area extends beyond the wire hole, there is a risk of cross-contamination. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides a cylinder through-hole component with a short-circuit isolation structure to solve at least one of the above technical problems.

[0004] To achieve the above objectives, this utility model provides a cylinder insert with a short-circuit protection and isolation structure, characterized in that it includes a cylinder insert body, the cylinder insert body including a sleeve portion and a wire insert portion connected sequentially from front to back along the axial direction;

[0005] The outer wall of the sleeve portion is provided with a positioning protrusion extending radially outward;

[0006] The threading section has a through hole for passing the wire through;

[0007] The threading part is provided with a blind hole with an opening at the rear end;

[0008] The axial end face of the threading part is fixed with a short-circuit isolation structure. The short-circuit isolation structure is located inside the sleeve part, and the short-circuit isolation structure includes a partition for separating adjacent holes. The partition is located between adjacent holes, and the axial length of the partition does not exceed the axial length of the sleeve part.

[0009] This invention achieves physical separation between adjacent conductors by adding a separator, thus avoiding the risk of circuit connection in the exposed areas of the conductor cores of adjacent conductors.

[0010] More preferably, the perforation is provided with ten perforations, including eight external perforations arranged at equal intervals along the circumference and two internal perforations arranged vertically, wherein the internal perforations are located inside the circular area enclosed by the center of the external perforations;

[0011] The partition includes an outer partition for separating adjacent outer perforations and an inner partition for separating two inner perforations.

[0012] The three outer partitions located at the top are connected by an inverted V-shaped upper connecting partition, forming an upper W-shaped structure;

[0013] The three outer partitions located at the bottom are connected by a V-shaped lower connecting partition, forming a lower W-shaped structure.

[0014] It facilitates the separation of adjacent perforations.

[0015] More preferably, the inner partition has vertically arranged extensions on its left and right sides, with the extensions facing the two ends of the upper connecting partition and the lower connecting partition.

[0016] More preferably, the perforation includes a first conical hole, a first circular hole, a second conical hole, and a second circular hole connected sequentially from front to back along the axial direction;

[0017] The axial length of the first circular hole is greater than the axial length of the second circular hole;

[0018] The inner diameter of the first circular hole is larger than the inner diameter of the second circular hole;

[0019] The inner diameter of the first tapered hole decreases from front to back;

[0020] The inner diameter of the second tapered hole decreases from front to back.

[0021] More preferably, the outer wall of the cylinder body is fixed with a first waterproof rubber ring and a second waterproof rubber ring along the axial direction from front to back.

[0022] More preferably, the outer wall of the cylinder body is provided with an annular limiting groove for engaging the retaining spring.

[0023] More preferably, the wire includes a first wire portion, a crimp terminal, and a second wire portion connected sequentially along the axial direction;

[0024] The front end of the crimp terminal is crimped to the insulating outer layer and the core of the first conductor portion, and the second conductor portion is crimped to the rear end of the crimp terminal.

[0025] The front end of the crimp terminal is located outside the through hole, and the front end of the crimp terminal does not extend beyond the front end of the partition.

[0026] More preferably, the sleeve portion is filled with insulating adhesive, which permeates the perforation.

[0027] Ensure the perforation area is waterproof and oil-proof.

[0028] More preferably, the material of the cylinder insert body is PPS+GF.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] When this utility model is used, the short-circuit isolation structure at the perforation point prevents short circuits at the exposed cores of adjacent conductors. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the front end structure of a specific embodiment 1 of the present utility model;

[0032] Figure 2 This is a half-sectional structural diagram of a specific embodiment 1 of the present utility model;

[0033] Figure 3 This is a structural schematic diagram from another perspective of a specific embodiment 1 of this utility model;

[0034] Figure 4 This is a schematic diagram of the wire structure in specific embodiment 1 of this utility model;

[0035] Figure 5 This is a cross-sectional view of a specific embodiment 1 of the present utility model.

[0036] In the diagram: 1 is the sleeve part, 2 is the wire threading part, 21 is the outer through hole, 22 is the inner through hole, 23 is the blind hole, 31 is the outer partition part, 32 is the inner partition part, 33 is the lower connecting partition part, 34 is the upper connecting partition part, 41 is the first wire part, 42 is the crimp terminal, 43 is the second wire part, 221 is the first conical hole, 222 is the first round hole, 223 is the second conical hole, and 224 is the second round hole. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] See Figures 1 to 5 Specific Embodiment 1: A cylinder insert with a short-circuit protection structure includes a cylinder insert body, which includes a sleeve portion 1 and a wire-passing portion 2 connected sequentially from front to back along the axial direction; the outer wall of the sleeve portion 1 is provided with a positioning protrusion extending radially outward; the wire-passing portion 2 has a through hole for passing a wire; the wire-passing portion 2 has a blind hole 23 with a rear end opening; a short-circuit protection structure is fixed to the axial end face of the wire-passing portion 2, the short-circuit protection structure is located inside the sleeve portion 1, and the short-circuit protection structure includes a partition portion for separating adjacent through holes, the partition portion is located between adjacent through holes, and the axial length of the partition portion does not exceed the axial length of the sleeve portion 1. This utility model achieves physical separation of adjacent wires by adding a partition portion, avoiding the risk of series circuitry in the exposed areas of adjacent wire cores. By providing a blind hole, the weight of the product is reduced, while facilitating the ejection of the ejector rod during processing and molding. At least one blind hole is provided between adjacent through holes.

[0039] The device has ten perforations, including eight outer perforations 21 arranged at equal angular intervals along the circumference and two inner perforations 22 arranged vertically. The inner perforations 22 are located inside the circular area enclosed by the centers of the outer perforations 21. The device includes outer dividing parts 31 for separating adjacent outer perforations 21 and inner dividing parts 32 for separating two inner perforations 22. The three upper outer dividing parts 31 are connected by an inverted V-shaped upper connecting dividing part 34, forming an upper W-shaped structure; the three lower outer dividing parts 31 are connected by a V-shaped lower connecting dividing part 33, forming a lower W-shaped structure. This facilitates the separation of adjacent perforations. The front end face of the sleeve part is provided with an outer marker for identifying the outer perforations. The front end face of the threading part is provided with an inner marker for identifying the inner perforations.

[0040] The inner partition 32 has vertically arranged extensions on its left and right sides, which connect to the upper and lower ends of the partition. The perforation includes a first tapered hole 221, a first circular hole 222, a second tapered hole 223, and a second circular hole 224 connected sequentially from front to back along the axial direction; the axial length of the first circular hole 222 is greater than the axial length of the second circular hole 224; the inner diameter of the first circular hole 222 is greater than the inner diameter of the second circular hole 224; the inner diameter of the first tapered hole 221 decreases from front to back; the inner diameter of the second tapered hole 223 decreases from front to back.

[0041] The outer wall of the cylinder body is fixed with a first waterproof rubber ring and a second waterproof rubber ring along the axial direction from front to back.

[0042] The outer wall of the cylinder body is provided with an annular limiting groove for engaging the retaining spring.

[0043] The conductor includes a first conductor portion 41, a crimp terminal 42, and a second conductor portion 43 connected sequentially along the axial direction. The front end of the crimp terminal 42 is crimped to the insulating outer layer and the core of the first conductor portion 41, and the second conductor portion 43 is crimped to the rear end of the crimp terminal 42. The front end of the crimp terminal 42 is located outside the perforation and does not extend beyond the front end of the partition portion. The sleeve portion 1 is filled with insulating glue, which penetrates the perforation to ensure a waterproof and oil-proof barrier at the perforation. The crimp terminal is partially fixed within the perforation. The rear end of the crimp terminal is located within the perforation.

[0044] The body of the cylinder insert is made of PPS+GF.

[0045] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A cylinder-penetrating component with a short-circuit protection and isolation structure, characterized in that, It includes a cylinder threading body, the cylinder threading body comprising a sleeve portion and a threading portion connected sequentially from front to back along the axial direction; The outer wall of the sleeve portion is provided with a positioning protrusion extending radially outward; The threading section has a through hole for passing a wire through; The threading part is provided with a blind hole with an opening at the rear end; The axial end face of the threading part is fixed with a short-circuit isolation structure. The short-circuit isolation structure is located inside the sleeve part, and the short-circuit isolation structure includes a partition for separating adjacent holes. The partition is located between adjacent holes, and the axial length of the partition does not exceed the axial length of the sleeve part.

2. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 1, characterized in that: The perforation is provided in ten parts, including eight external perforations arranged at equal intervals along the circumference and two internal perforations arranged vertically. The internal perforations are located inside the circular area enclosed by the center of the external perforations. The partition includes an outer partition for separating adjacent external perforations and an inner partition for separating two internal perforations. The three outer partitions located at the top are connected by an inverted V-shaped upper connecting partition, forming an upper W-shaped structure; The three outer partitions located at the bottom are connected by a V-shaped lower connecting partition, forming a lower W-shaped structure.

3. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 2, characterized in that: The inner partition has vertically arranged extensions on its left and right sides, with the extensions facing the two ends of the upper connecting partition and the lower connecting partition.

4. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 1, characterized in that: The perforation includes a first tapered hole, a first round hole, a second tapered hole, and a second round hole connected sequentially from front to back along the axial direction; The axial length of the first circular hole is greater than the axial length of the second circular hole; The inner diameter of the first circular hole is larger than the inner diameter of the second circular hole; The inner diameter of the first tapered hole decreases from front to back; The inner diameter of the second tapered hole decreases from front to back.

5. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 1, characterized in that: The outer wall of the cylinder body is fixed with a first waterproof rubber ring and a second waterproof rubber ring along the axial direction from front to back.

6. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 1, characterized in that: The outer wall of the cylinder insert body is provided with an annular limiting groove for engaging the retaining spring.

7. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 1, characterized in that: The conductor includes a first conductor portion, a crimp terminal, and a second conductor portion connected sequentially along the axial direction; The front end of the crimp terminal is crimped to the insulating outer layer and the core of the first conductor portion, and the second conductor portion is crimped to the rear end of the crimp terminal; The front end of the crimp terminal is located outside the through hole, and the front end of the crimp terminal does not extend beyond the front end of the partition.

8. A cylinder-penetrating component with a short-circuit protection and isolation structure according to claim 1, characterized in that: The sleeve portion is filled with insulating adhesive, which permeates the perforation.

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