Wire harness plugging terminal

Abstract

The utility model discloses a wire harness plug terminal, which comprises a plug section and a wiring section which are arranged at an angle, the plug section is of a cylindrical structure and is divided into a left elastic body and a right elastic body through slots, a plurality of axially extending semi-conical raised lines are distributed on the outer surface at intervals in the circumferential direction, and the profile of the cross section of the plug section is gradually reduced and transited from a semi-circular base to a conical top. According to the terminal, the dependence of a traditional cylindrical structure on a high-precision size is changed through the raised line design, and the processing cost is reduced; the semi-conical raised lines increase the contact area with the female end, reduce the contact resistance and improve the conductivity; the elastic body formed by slotting can adaptively adjust the contact pressure with the female end, thereby ensuring the stable electrical connection, effectively avoiding the problems of poor contact and looseness, and improving the reliability and stability of the electrical connection.

Description

Technical Field

[0001] This utility model relates to the field of terminal technology, specifically to a wire harness plug-in terminal. Background Technology

[0002] In the field of wire harness connection technology, wire harness connectors, as key components for achieving electrical connections, are widely used in many fields such as automobiles and electronic equipment. Their performance directly affects the stability and reliability of electrical systems. Currently, most common wire harness connector segments adopt a simple cylindrical structure, which requires extremely strict dimensional accuracy when mating with the female terminal.

[0003] On the one hand, the high-precision dimensional requirements necessitate the use of more sophisticated processing equipment and techniques, which undoubtedly increases processing costs significantly. On the other hand, during actual assembly, due to factors such as tolerance matching, the contact stability between the cylindrical plug-in section and the female end is difficult to guarantee, easily leading to problems such as poor contact and loosening, which in turn affects the reliability of the electrical connection and may even cause electrical faults. Therefore, there is an urgent need for a wire harness plug-in terminal structure that can reduce precision requirements and processing costs while ensuring the stability of the electrical connection. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a wire harness plug-in terminal.

[0005] The technical solution adopted by this utility model is: a wire harness plug-in terminal, including a plug-in section and a wiring section, wherein the plug-in section and the wiring section are arranged at an angle;

[0006] The plug-in section has a cylindrical structure and is divided into a left elastic body and a right elastic body by slotting.

[0007] The outer surface of the plug segment has multiple axially extending protrusions distributed circumferentially. The protrusions are semi-conical three-dimensional structures that gradually shrink from bottom to top, and their cross-sectional profile gradually transitions from a semi-circular base to a cone apex.

[0008] Furthermore, the top of the plug segment is provided with a tapered segment and a spherical portion, the diameter of which gradually decreases from the bottom to the top.

[0009] Furthermore, the surface slope of the semi-conical protrusion is 0.2°-0.8°, and the ratio of its axial extension length L to the insertion section length L1 is 0.7≤L / L1≤0.95.

[0010] Furthermore, the slot is composed of a wide gap portion and a narrow gap portion, wherein the width of the wide gap portion is 1.5-2.5 times that of the narrow gap portion.

[0011] Furthermore, fitting grooves are provided on both side walls of the wide gap portion, and a supporting elastic body is provided between the fitting grooves. The supporting elastic body has an elastic force that pushes the left and right elastic bodies outward.

[0012] Furthermore, the supporting elastomer is a polymeric elastic material.

[0013] Furthermore, the included angle between the plug segment and the wiring segment is 80-110 degrees.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting circumferentially spaced and axially extending protrusions on the outer surface of the insertion section, the reliance on high-precision dimensions of traditional cylindrical structures is changed. Compared with existing technologies, it is no longer necessary to rely on high-precision machining equipment and complex processes to ensure mating dimensions, effectively reducing processing costs and improving production efficiency.

[0016] 2. The convex strip adopts a semi-conical three-dimensional structure that gradually tapers from bottom to top. This special shape design allows it to form a tighter and more stable connection when in contact with the female end, increasing the contact area, reducing contact resistance, improving conductivity, and making it easier to insert into the female end for convenient mating.

[0017] 3. The plug section is divided into a left elastic body and a right elastic body by slotting. The elastic deformation of the left and right elastic bodies can adaptively adjust the pressure between the protrusion and the female end, further ensuring that the protrusion is stably electrically connected to the female end. This effectively avoids problems such as poor contact and loosening caused by tolerance fit and other factors, and greatly improves the reliability and stability of the electrical connection.

[0018] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a side view of the present invention.

[0022] Figure 1-2 In the middle: 1. Plug-in section; 2. Wiring section; 3. Slot; 4. Left elastic body; 5. Right elastic body; 6. Raised strip; 7. Semi-circular base; 8. Conical top; 9. Conical section; 10. Spherical part; 11. Wide gap part; 12. Narrow gap part; 13. Fitting groove; 14. Supporting elastic body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] This utility model provides a wire harness plug-in terminal.

[0026] In this embodiment, refer to Figure 1-2 The wire harness connector includes a connector segment 1 and a wiring segment 2, wherein the connector segment and the wiring segment are arranged at an angle.

[0027] The plug section 1 is a cylindrical structure, and the plug section is divided into a left elastic body 4 and a right elastic body 5 by a slot 3;

[0028] The outer surface of the plug section has multiple axially extending protrusions 6 distributed circumferentially. The protrusions 6 are semi-conical three-dimensional structures that gradually shrink from bottom to top, and their cross-sectional profile gradually transitions from a semi-circular base 7 to a cone apex 8.

[0029] In the above technical solution, by setting the plug-in section and the wiring section at an angle, the overall layout is optimized, which facilitates the realization of electrical connections in different directions within a limited space. The plug-in section adopts a cylindrical structure and is slotted to form left and right elastic bodies. Utilizing the principle of elastic deformation, the elastic body can adaptively adjust the contact pressure with the female end when plugged in. The semi-conical convex strips distributed circumferentially on the outer surface can produce a wedging effect during the insertion of the female end, increasing the friction and contact tightness with the female end, while facilitating the plugging and mating with the female end.

[0030] The bottom of this application is a plug-in section located at one end of the wiring section, and the other end is the top, as shown in the attached figure.

[0031] Specifically, the top of the plug segment is provided with a tapered segment 9 and a spherical portion 10, and the diameter of the tapered segment and the spherical portion gradually decreases from the bottom to the top.

[0032] In this embodiment, a tapered section and a spherical part with gradually decreasing diameter are provided at the top of the insertion section. Based on the guiding principle, the tapered section and the spherical part can play a guiding role when inserting the female end, reducing the insertion resistance and making the insertion process smoother. This effectively reduces the operation difficulty and the required insertion force when inserting the terminal into the female end, and improves the assembly efficiency.

[0033] Specifically, the surface slope of the semi-conical protrusion is 0.2°-0.8°, and the ratio of its axial extension length L to the insertion section length L1 is 0.7≤L / L1≤0.95.

[0034] In this embodiment, the surface slope of the semi-conical protrusion is controlled between 0.2° and 0.8°. This angle range ensures that the protrusion generates a suitable wedging force when inserted into the female end, ensuring a tight connection, while avoiding excessive angle that would make insertion difficult. The axial extension length L of the protrusion and the length L1 of the insertion segment are kept in a ratio of 0.7 ≤ L / L1 ≤ 0.95, which makes the protrusion distributed reasonably on the insertion segment, ensuring sufficient contact area while maintaining the overall structural strength of the insertion segment.

[0035] The appropriate ridge angle and length distribution of the convex strips ensure a tight and stable connection between the terminal and the female end, improving conductivity. At the same time, it optimizes the insertion and removal experience and ensures that the plug section is not easily damaged during long-term use, extending the service life of the terminal.

[0036] Specifically, the slot is composed of a wide gap portion 11 and a narrow gap portion 12, wherein the width of the wide gap portion is 1.5-2.5 times that of the narrow gap portion.

[0037] In this embodiment, the combination of wide and narrow gaps enhances the elasticity and adaptability of the elastomer, enabling the terminal to better adapt to female terminals of different specifications, further improving the reliability of electrical connections and reducing connection problems caused by insufficient elasticity or excessive deformation.

[0038] Specifically, fitting grooves 13 are provided on both side walls of the wide gap portion, and a supporting elastic body 14 is provided between the fitting grooves 13. The supporting elastic body has an elastic force that pushes the left elastic body and the right elastic body outward.

[0039] In this embodiment, the fitting groove on the sidewall of the wide gap portion is provided with a supporting elastomer. The elastic force of the supporting elastomer to push the left and right elastomers outward further enhances the contact pressure between the elastomer and the female end. Moreover, during insertion and extraction, it can help the elastomer quickly recover its deformation and maintain a stable contact state.

[0040] Specifically, the supporting elastomer is a polymeric elastic material.

[0041] In this embodiment, a polymeric elastic material is selected as the supporting elastomer. This material possesses excellent elasticity, wear resistance, and corrosion resistance, enabling it to maintain stable elastic properties over long periods in various complex working environments, thus ensuring effective support for the elastomer. Examples include thermoplastic polyurethane, fluorosilicone rubber, and liquid silicone rubber.

[0042] Specifically, the included angle between the plug segment and the wiring segment is 80-110 degrees.

[0043] In this embodiment, the included angle between the plug segment and the wiring segment is set at 80-110 degrees. The angle can be adjusted by those skilled in the art according to different usage scenarios. A suitable included angle can ensure flexible wiring in a limited space and ensure stable electrical connection between the plug segment and the wiring segment, avoiding stress concentration or loose connection caused by improper angle.

[0044] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A wire harness connector terminal, characterized in that: It includes a plug section and a wiring section, wherein the plug section and the wiring section are arranged at an angle; The plug-in section has a cylindrical structure and is divided into a left elastic body and a right elastic body by slotting. The outer surface of the plug segment has multiple axially extending protrusions distributed circumferentially. The protrusions are semi-conical three-dimensional structures that gradually shrink from bottom to top, and their cross-sectional profile gradually transitions from a semi-circular base to a cone apex.

2. The wire harness connector terminal according to claim 1, characterized in that: The top of the plug section is provided with a tapered section and a spherical portion, and the diameter of the tapered section and the spherical portion gradually decreases from the bottom to the top.

3. The wire harness connector terminal according to claim 1, characterized in that: The surface slope of the semi-conical protrusion is 0.2°-0.8°, and the ratio of its axial extension length L to the insertion section length L1 is 0.7≤L / L1≤0.

95.

4. The wire harness connector terminal according to claim 1, characterized in that: The slot is composed of a wide gap portion and a narrow gap portion, wherein the width of the wide gap portion is 1.5-2.5 times that of the narrow gap portion.

5. The wire harness connector terminal according to claim 4, characterized in that: The wide gap portion has fitting grooves on both side walls, and a supporting elastic body is provided between the fitting grooves. The supporting elastic body has an elastic force that pushes the left and right elastic bodies outward.

6. The wire harness connector terminal according to claim 5, characterized in that: The supporting elastomer is a polymeric elastic material.

7. The wire harness plug-in terminal according to claim 4, characterized in that: The included angle between the plug section and the wiring section is 80-110 degrees.

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