Anti-drawing wiring harness ground terminal

Abstract

An anti-drawing wire harness ground terminal comprises a wire harness crimping part, the wire harness crimping part comprises a supporting plate and crimping plates oppositely arranged on the two sides of the width of the supporting plate, a plurality of rows of anti-falling blocks are arranged on the supporting plate in the front-back direction in the length direction, and each row of anti-falling blocks comprises a plurality of anti-falling blocks. The anti-falling blocks in the two adjacent rows of anti-falling blocks are arranged in a staggered mode in the width direction of the supporting plate, the anti-falling blocks in the two adjacent rows of anti-falling blocks are arranged in a front-and-back centering mode, and gaps between the multiple rows of anti-falling blocks are arranged in the mode that wire cores of wire harnesses can penetrate through the gaps. According to the utility model, through the plurality of anti-falling blocks arranged on the supporting plate and the special arrangement mode of the plurality of anti-falling blocks, the contact area of the wire core and the wire harness crimping part is increased, so that the wire core of the wire harness is effectively fixed when passing through, the displacement of the wire core caused by vehicle vibration and the like is prevented, the stability of the wire core on the wire harness crimping part is enhanced, and the service life of the wire core is prolonged. Therefore, the drawing resistance of the wire harness is improved, the stability of electric connection is ensured, and other faults are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wiring harness design, in particular to a wiring harness grounding terminal which is resistant to pulling out. Background Art

[0002] A wiring harness is a component that is formed by crimping the grounding terminal with the core and insulation layer of the wire and cable, and then plastic-pressing the insulator on the outside or adding a metal shell to bundle the wires to form a connecting circuit. The wiring harness can be directly or indirectly connected to the vehicle body through the grounding terminal. During use, the wiring harness may be dragged, and its stress-bearing part is mainly concentrated on the connection between the wiring harness and the grounding terminal. Therefore, there are certain requirements for the location of the grounding terminal crimping the wiring harness during design.

[0003] For example, a negative wire grounding terminal and automobile with patent application number CN201420132713.9 has designed the crimping part of the wire harness core, and the crimping part of the wire harness core includes a wiring arm at the bottom and two raised structures connected to both sides of the wiring arm and extending upward, wherein the bottom surface is an arc-shaped structure. When in use, the wire harness core is first placed on the arc-shaped structure, and then the wire harness core is crimped and fixed by squeezing the raised structures on both sides of the arc-shaped structure. However, although this structure can crimp and fix the wire harness, during use, the wire harness may be dragged, and the crimping part of the wire harness core is subjected to a large pulling force. Since its arc-shaped structure is relatively smooth, its anti-pulling ability is weak, resulting in the wire harness possibly breaking free from the crimping part due to vibration and other reasons, causing the wire harness core to detach from the crimping part, resulting in electrical connection failure or other hidden faults. Utility Model Content

[0004] In order to solve the technical problem in the above-mentioned background technology that the bottom surface of the grounding terminal crimping the wiring harness is a smooth arc structure, and the wiring harness may break free from the arc structure due to vibration and other reasons, causing electrical connection failure or other faults, the utility model provides a pull-out resistant wiring harness grounding terminal.

[0005] The technical solution of this utility model is as follows:

[0006] A pull-out resistant wire harness grounding terminal comprises a wire harness crimping portion and a fixed installation portion, the fixed installation portion is used to connect to a car body, the wire harness crimping portion comprises a support plate and crimping plates arranged on both sides of its width. When in use, the wire harness core is first placed on the support plate, and then a crimping tool is used to crimp the two crimping plates to the support plate, and the wire harness core is fixed on the wire harness crimping portion to complete the crimping work between the wire harness and the wire harness grounding terminal.

[0007] As the core technical concept of the utility model, several rows of anti-slip blocks are provided on the length direction of the support plate, each row of anti-slip blocks includes several anti-slip blocks, the anti-slip blocks in two adjacent rows of anti-slip blocks are staggered along the width direction of the support plate, the anti-slip blocks in two adjacent rows of anti-slip blocks are arranged in the front and rear positions, and the gaps between the several rows of anti-slip blocks are set to allow the wire cores of the wire harness to pass through, and these anti-slip blocks are used to increase the contact area with the wire cores of the wire harness, so that the wire cores of the wire harness are effectively fixed when passing through, preventing the displacement of the wire cores due to vehicle vibration and other reasons, thereby improving the pulling resistance of the wire harness.

[0008] As described above, in a pull-out resistant wiring harness grounding terminal, the front end spacing between two adjacent anti-detachment blocks in the same row is greater than the rear end spacing, and the wire core is arranged to pass from front to back, so that the wire harness core can more easily pass through the gap between the anti-detachment blocks from front to back, thereby simplifying the installation process.

[0009] As a preferred embodiment of the pull-out resistant wiring harness grounding terminal as described above, the anti-detachment block is a triangular column structure, which provides good stability and load-bearing capacity for the wiring harness crimping part.

[0010] Further preferably, the root of the anti-detachment block is a chamfered structure, and the corners of the anti-detachment block are all chamfered structures, which reduces stress concentration, avoids material fatigue and fracture, and the thickness of the root of the anti-detachment block is greater than the thickness of its end, thereby improving the structural strength of the anti-detachment block and enhancing its tensile strength.

[0011] Furthermore, the anti-slip block has an inclination to facilitate the smooth passage of the wire core. At the same time, during the manufacturing process, the anti-slip block with an inclination can be more easily separated from the mold, which not only reduces mold wear, but also avoids material fatigue and breakage, thereby extending the service life of the anti-slip block.

[0012] In order to improve the reliability of the wire harness crimping structure, the anti-slip block can be formed by stamping, and the depth shall not exceed 1.5 times the thickness of the support plate. The stamping process can ensure the shape and dimensional accuracy of the anti-slip block, and can ensure the reliability of the stamping structure of the anti-slip block. At the same time, compared with other manufacturing methods, the stamping process can produce a large number of anti-slip blocks with extremely high consistency in a short time, and can effectively reduce costs during large-scale production.

[0013] Furthermore, the specifications of the plurality of anti-slip blocks are the same, and the uniform specifications of the anti-slip blocks reduce the manufacturing cost, facilitate the control of the qualified rate, and facilitate mass production.

[0014] Furthermore, the distance between any two adjacent anti-slip blocks is not less than 1 / 2 of the thickness of the support plate, which reduces the processing difficulty and improves the production efficiency.

[0015] In the above-mentioned pull-out-resistant wiring harness grounding terminal, the support plate is a rectangular sheet structure / an arc-shaped sheet structure with an opening facing the crimping plate to meet the requirements of different types of wiring harnesses or installation environments.

[0016] The beneficial effects of the pull-out resistant wiring harness grounding terminal of the utility model are:

[0017] (1) By setting a number of anti-slip blocks on the support plate and the special arrangement of the anti-slip blocks, the contact area between the wire core and the crimping part of the wire harness is increased, so that the wire core of the wire harness is effectively fixed when passing through, preventing the displacement of the wire core due to vehicle vibration and other reasons, and enhancing the stability of the wire core in the crimping part of the wire harness, thereby improving the pulling resistance of the wire harness, ensuring the stability of the electrical connection, and reducing the occurrence of other faults;

[0018] (ii) The design of the structure and arrangement of the anti-detachment block fully considers factors such as the structural strength, durability, ease of use and manufacturing cost of the anti-detachment block, making it particularly suitable for automobiles or other electronic systems that require high-reliability connections. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 This is a schematic diagram of the structure of a pull-out resistant wiring harness grounding terminal of the utility model;

[0021] Figure 2 for Figure 1 A top view of the middle support plate;

[0022] Figure 3 for Figure 2 AA cross-section diagram of ;

[0023] The components represented by the reference numerals in the figure are:

[0024] 1. Wire harness crimping portion; 11. Support plate; 111. Opening; 112. Anti-slip block; 12. Crimping plate; 2. Fixed installation portion. DETAILED DESCRIPTION

[0025] Combination Figure 1 As shown, the present embodiment provides a pull-out resistant wire harness grounding terminal, including a wire harness crimping portion 1 and a fixed mounting portion 2, the fixed mounting portion 2 is provided with a through hole, and is connected to the vehicle body through the through hole, the wire harness crimping portion 1 includes a support plate 11 and crimping plates 12 relatively arranged on both sides of its width, when in use, first place the wire harness core on the support plate 11, and then use a crimping tool to crimp the two crimping plates 12 to the support plate 11, fix the wire harness core on the wire harness crimping portion 1, and complete the crimping work between the wire harness and the wire harness grounding terminal.

[0026] Combination Figure 2As the core technical concept of the present invention, several rows of anti-slip blocks 112 are provided on the support plate 11 along the length direction, and each row of anti-slip blocks 112 includes several anti-slip blocks 112. The anti-slip blocks 112 in two adjacent rows of anti-slip blocks 112 are staggered along the width direction of the support plate 11, and the anti-slip blocks 112 in two adjacent rows of anti-slip blocks 112 are arranged in the front and rear positions. The gaps between the several rows of anti-slip blocks 112 are set to allow the wire cores of the wiring harness to pass through, and the contact area with the wire cores of the wiring harness is increased by these anti-slip blocks 112, so that the wire cores of the wiring harness are effectively fixed when passing through, and the displacement of the wire cores caused by vehicle vibration and other reasons is prevented, thereby improving the pulling resistance of the wiring harness.

[0027] In this embodiment, the support plate 11 is a rectangular sheet structure. It should be noted that the support plate 11 can also be an arc-shaped sheet structure with the opening 111 arranged toward the crimping plate 12 to meet the requirements of different types of wiring harnesses or installation environments.

[0028] As a further preferred embodiment, the front end spacing between two adjacent anti-slip blocks 112 in the same row of anti-slip blocks 112 is greater than the rear end spacing, and the wire core is configured to pass from front to back, so that the wire core of the wiring harness can more easily pass through the gap between the anti-slip blocks 112 from front to back, thereby simplifying the installation process.

[0029] For the structure of the anti-drop block 112, combined with Figure 2 and Figure 3 Specifically:

[0030] The anti-slip block 112 is a triangular column structure, which provides good stability and load-bearing capacity for the wire harness crimping part 1 .

[0031] The root of the anti-slip block 112 is a chamfered structure, and the corners of the anti-slip block 112 are all chamfered structures, which reduces stress concentration and avoids material fatigue and fracture. In addition, the thickness of the root of the anti-slip block 112 is greater than the thickness of its end, which improves the structural strength of the anti-slip block 112 and enhances its tensile strength.

[0032] The anti-slip block 112 has an inclination to facilitate the smooth passage of the wire core. At the same time, during the manufacturing process, the anti-slip block 112 with an inclination can be more easily separated from the mold, which not only reduces mold wear, but also avoids material fatigue and breakage, thereby extending the service life of the anti-slip block 112.

[0033] The specifications of the plurality of anti-slip blocks 112 are all the same. The uniform specifications of the anti-slip blocks 112 reduce the manufacturing cost, facilitate the control of the qualified rate, and facilitate mass production.

[0034] The distance between any two adjacent anti-slip blocks 112 is not less than 1 / 2 of the thickness of the support plate 11, which reduces the processing difficulty and improves the production efficiency.

[0035] The anti-slip block 112 is formed by stamping, and the side of the support plate 11 facing away from the anti-slip block 112 has an opening 111, and the depth of the opening 111 does not exceed 1.5 times the thickness of the support plate 11. The stamping process can ensure the shape and dimensional accuracy of the anti-slip block 112, and can ensure the reliability of the stamping structure of the anti-slip block 112. At the same time, compared with other manufacturing methods, the stamping process can manufacture a large number of anti-slip blocks 112 with extremely high consistency in a short time, and can effectively reduce costs during large-scale production.

[0036] The utility model discloses a wire harness grounding terminal which is resistant to pull-out. By means of a plurality of anti-slip blocks 112 arranged on a support plate 11 and a special arrangement of the plurality of anti-slip blocks 112, the contact area between the wire core and the wire harness crimping portion 1 is increased, so that the wire harness core is effectively fixed when passing through, and displacement of the wire core caused by vehicle vibration and the like is prevented, and the stability of the wire core in the wire harness crimping portion 1 is enhanced, thereby improving the pull-out resistance of the wire harness, ensuring the stability of the electrical connection, and reducing the occurrence of other faults. At the same time, the design of the structure and arrangement of the anti-slip blocks 112 fully considers the structural strength, durability, ease of use and manufacturing cost of the anti-slip blocks 112, making them particularly suitable for automobiles or other electronic systems which require high-reliability connections.

Claims

1. A wire harness grounding terminal with a pulling resistance, comprising a wire harness crimping portion (1), wherein the wire harness crimping portion (1) comprises a support plate (11) and crimping plates (12) arranged on both sides of the width thereof, characterized in that : The support plate (11) is provided with a plurality of rows of anti-slip blocks along the length direction, and each row of anti-slip blocks includes a plurality of anti-slip blocks (112); The anti-slip blocks (112) in two adjacent rows of anti-slip blocks are arranged alternately along the width direction of the support plate (11), the anti-slip blocks (112) in two adjacent rows of anti-slip blocks are arranged in a front-to-back central position, and the gaps between the rows of anti-slip blocks are arranged to allow the wire cores of the wire harness to pass through.

2. The pull-out resistant wiring harness grounding terminal according to claim 1, characterized in that: The front end spacing of two adjacent anti-slipping blocks (112) in the same row of anti-slipping blocks is greater than the rear end spacing, and the wire core is arranged to pass from front to back.

3. The pull-out resistant wiring harness grounding terminal according to claim 2, characterized in that: The anti-fall-off block (112) is a triangular column structure.

4. The pull-out resistant wiring harness grounding terminal according to claim 3, characterized in that: The root of the anti-slip block (112) is a rounded structure.

5. The pull-out resistant wiring harness grounding terminal according to claim 4, characterized in that: The corners of the anti-slip blocks (112) are all rounded structures.

6. The pull-out resistant wiring harness grounding terminal according to claim 5, characterized in that: The anti-dropping block (112) has an inclination.

7. The pull-out resistant wiring harness grounding terminal according to claim 6, characterized in that: The thickness of the root of the anti-slip block (112) is greater than the thickness of the end thereof.

8. The pull-out resistant wiring harness grounding terminal according to any one of claims 1 to 7, characterized in that: The anti-dropping block (112) is formed by stamping, and its depth does not exceed 1.5 times the thickness of the support plate (11).

9. The pull-out resistant wiring harness grounding terminal according to claim 8, characterized in that: The support plate (11) is a rectangular sheet structure / an arc-shaped sheet structure with an opening disposed toward the crimping plate (12).

10. The pull-out resistant wiring harness grounding terminal according to claim 9, characterized in that: The distance between any two adjacent anti-slip blocks (112) is not less than 1 / 2 of the thickness of the support plate (11).

Images