A new wiring harness connector structure
By using a split-type male and female terminal structure and insulating heat shrink tubing, the complexity and compatibility issues of the low-voltage wire harness sheath terminal crimping process are solved, achieving high temperature resistance, reliable sealing, and cost control, thereby reducing the cost of the wire harness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI RUILU TECH CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-29
AI Technical Summary
The existing low-voltage wire harness sheath terminal crimping process is complex, resulting in increased costs, low compatibility, insufficient high-temperature resistance, poor sealing reliability, and difficulties in weight reduction and cost control.
The male and female terminals adopt a split design, eliminating the need for a protective sleeve. They use a male terminal locking mechanism and a female terminal locking mechanism in conjunction, along with an external insulating heat shrink tubing, to achieve a mating connection between the male and female terminals. A wire harness identification area is set on the insulating heat shrink tubing.
It reduces the complexity of wire harness crimping process, improves wire harness compatibility and high temperature resistance, ensures sealing reliability, and achieves lightweighting and cost control.
Smart Images

Figure CN224305049U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness connection, and specifically to a novel wire harness connector structure. Background Technology
[0002] As vehicles become increasingly electrified and intelligent, the number of functions required is also increasing, leading to a greater number of low-voltage wiring harnesses within the vehicle and battery pack. These harnesses need to be interconnected through multiple sheaths, and the sheaths come from a wide variety of manufacturers with low compatibility. Furthermore, the quality of these sheaths varies, and the lack of standardized design criteria significantly reduces the reliability and durability of electrical connections.
[0003] The complexity of the current low-voltage wire harness sheath terminal crimping process directly leads to a surge in wire harness costs. Due to the characteristics of the material and structure of the low-voltage wire harness sheath, low-voltage wire harnesses also face many problems such as environmental compliance pressure, insufficient high-temperature resistance, contradictions in lightweighting, defects in sealing reliability, and cost control dilemmas.
[0004] At present, a novel wire harness connector structure is proposed to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to provide a novel wire harness connector structure. It adopts a split design with male and female mating terminals and a sheathless design, reducing the complexity of the wire harness crimping process and significantly lowering the cost of low-voltage wire harnesses. Simultaneously, the external high-temperature resistant protective film effectively isolates high temperatures and achieves a high sealing level. This invention also solves problems related to high temperature resistance, reliable sealing, lightweight design, and cost control.
[0006] The technical solution of this utility model is as follows:
[0007] A novel wire harness connector structure includes a male terminal and a female terminal. The male terminal is provided with a male terminal locking mechanism, and the female terminal is provided with a female terminal locking mechanism. The male terminal locking mechanism is pluggably disposed within the female terminal locking mechanism. Insulating heat shrink tubing is provided on the outside of both the male terminal and the female terminal.
[0008] Further specifying, the male terminal locking mechanism is disposed on the outer circumferential surface of the male terminal, the male terminal locking mechanism is trapezoidal, and a plurality of slots are evenly arranged on the outer circumferential surface of the male terminal locking mechanism. The female terminal locking mechanism is installed at the end of the female terminal close to the male terminal locking mechanism, the female terminal locking mechanism is hollow tubular, and a trapezoidal connector is disposed inside. A through hole is disposed in the middle of the trapezoidal connector. The size and shape of the trapezoidal connector match the male terminal locking mechanism. A plurality of locking pieces are evenly arranged on the inner sidewall of the through hole of the trapezoidal connector. The number, position and angle of the locking pieces correspond to the slots. When the male terminal locking mechanism is engaged in the female terminal locking mechanism, the locking pieces are engaged in the slots.
[0009] Further specifying, the insulating heat shrink tubing on the male terminal covers the male terminal locking mechanism and is located within the female terminal locking mechanism, and the insulating heat shrink tubing on the female terminal covers both the female terminal and the female terminal locking mechanism.
[0010] Furthermore, the insulating heat shrink tubing is provided with a wire harness marking area.
[0011] The advantages of this utility model over the current technology are as follows:
[0012] 1. The design of male and female terminals for plug-in connection eliminates the need for sheaths, reduces the crimping process of terminals, and improves the compatibility of wire harness plug-in.
[0013] 2. Each heat shrink tubing has a wire harness identification area to facilitate the identification of different wire harnesses. Attached Figure Description
[0014] Figure 1 A three-dimensional structural diagram of multiple wire harness connector structures forming a wire harness connection assembly;
[0015] Figure 2 This is a schematic diagram of the female terminal and the female terminal locking mechanism of this utility model;
[0016] Figure 3 This is a schematic diagram of the male terminal and the male terminal locking mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram showing the mating of the male and female terminals of this utility model;
[0018] Figure 5 This is a three-dimensional structural diagram of the present invention.
[0019] The markings in the diagram correspond to: 1-male terminal, 2-female terminal, 3-male terminal locking mechanism, 4-slot, 5-female terminal locking mechanism, 6-trapezoidal connector, 7-insulating heat shrink tubing, 8-wire harness, and 9-adhesive tape protective layer. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example
[0021] like Figures 1-5 As shown, a novel wire harness connector structure includes a male terminal 1 and a female terminal 2. A male terminal locking mechanism 3 is provided on the outer circumferential surface of the male terminal 1. The male terminal locking mechanism 3 is trapezoidal, and a plurality of slots 4 are evenly provided on the outer circumferential surface of the male terminal locking mechanism 3. A female terminal locking mechanism 4 is provided at one end of the female terminal 2 near the male terminal locking mechanism 3. The female terminal locking mechanism 4 is a hollow tube, and a trapezoidal snap-fit device 6 is provided inside it. A through hole is provided in the middle of the trapezoidal snap-fit device. The size and shape of the trapezoidal snap-fit device 6 match the male terminal locking mechanism 3. A plurality of locking pieces (not shown in the figure) are evenly provided on the inner sidewall of the through hole of the trapezoidal snap-fit device 6. The number, position and angle of the locking pieces correspond to the slots 4. When the male terminal locking mechanism 3 is engaged in the female terminal locking mechanism 5, the locking pieces are engaged in the slots 4.
[0022] Insulating heat shrink tubing 7 is provided on the outside of both male terminal 1 and female terminal 2. The insulating heat shrink tubing 7 on male terminal 1 covers male terminal locking mechanism 3 and is located inside female terminal locking mechanism 5. The insulating heat shrink tubing 7 on female terminal 2 covers female terminal 2 and female terminal locking mechanism 5. A wire harness identification area is provided on the insulating heat shrink tubing 7 on the outside of male terminal 1 and female terminal 2 to mark the number and function of wire harness 8.
[0023] In use, an insulating heat-shrink tubing 7 is wrapped around the male terminal 1, and the male terminal locking mechanism 3 is inserted into the female terminal locking mechanism 5. That is, the locking piece on the female terminal locking mechanism 5 is engaged in the slot 4 of the male terminal locking mechanism 3 to ensure the pull-out force of the terminal. When the male terminal 1 and the female terminal 2 of the wire harness 8 are mated, wire harness 8 with a small difference in outer diameter should be selected. After the male terminal 1 and the female terminal 2 are inserted together, the insulating heat-shrink tubing 7 is heat-shrinked to form a wire harness connector structure. Several new wire harness connector structures are assembled together to form a wire harness connection assembly. The wire harness connection assembly is wrapped with a protective tape layer 9 for further protection.
[0024] The above provides a detailed description of a novel wire harness connector structure provided by this utility model. The description of the specific embodiments is only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the scope of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A novel wire harness connector structure, characterized in that: It includes a male terminal (1) and a female terminal (2). The male terminal (1) is provided with a male terminal locking mechanism (3), and the female terminal (2) is provided with a female terminal locking mechanism (5). The male terminal locking mechanism (3) is pluggably disposed in the female terminal locking mechanism (5). Insulating heat shrink tubing (7) is provided on the outside of both the male terminal (1) and the female terminal (2).
2. The novel wire harness connector structure according to claim 1, characterized in that: The male terminal locking mechanism (3) is set on the outer circumferential surface of the male terminal (1). The locking mechanism of the male terminal (1) is trapezoidal. Several slots (4) are evenly arranged on the outer circumferential surface of the male terminal locking mechanism (3). The female terminal locking mechanism (5) is installed on the end of the female terminal (2) near the male terminal locking mechanism (3). The female terminal locking mechanism (5) is hollow tubular and has a trapezoidal connector (6) inside. A through hole is provided in the middle of the trapezoidal connector (6). The size and shape of the trapezoidal connector (6) match the male terminal locking mechanism (3). Several locking pieces are evenly arranged on the inner side wall of the through hole of the trapezoidal connector (6). The number, position and angle of the locking pieces correspond to the slots (4). When the male terminal locking mechanism (3) is engaged in the female terminal locking mechanism (5), the locking pieces are engaged in the slots (4).
3. The novel wire harness connector structure according to claim 2, characterized in that: The insulating heat shrink tube (7) on the male terminal (1) covers the male terminal locking mechanism (3) and is located inside the female terminal locking mechanism (5). The insulating heat shrink tube (7) on the female terminal (2) covers the female terminal (2) and the female terminal locking mechanism (5).
4. The novel wire harness connector structure according to claim 1, characterized in that: The insulating heat shrink tubing (7) is provided with a wire harness marking area.