Wiring harness bonding structure of new energy electric vehicle
The line bundle fastening structure for new energy electric vehicles uses a screw bolt with a limiting plate and nut to encase the terminal, addressing exposure issues and enhancing corrosion resistance through zinc-nickel alloy and copper-tin plating, ensuring continuous protection.
Patent Information
- Application Number
- CN202422253330.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The existing wire harness ground structure cannot effectively prevent corrosion and oxidation in new energy electric vehicles, resulting in the grounding components being vulnerable to damage.
The bolt head, bolt rod, ground nut and brass tin-plated iron terminals are designed by the design of the limiting plate and the opening to isolate the corrosive medium, and the fixed with threaded connection and convex welding to ensure that the ground terminal is isolated from the outside.
Effectively prevent corrosive media such as water and air from contacting the ground terminals, improve the corrosion resistance and oxidation resistance of the ground components and extend the service life.
Smart Images

Figure CN223109326U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wire harness grounding, in particular to a wire harness grounding structure for a new energy electric vehicle. Background Art
[0002] The existing wire harness grounding method is to use bolts to fix the wire harness grounding terminal on the body back welding nut, and the grounding structure is directly exposed to the air, which cannot play a continuous anti-corrosion and anti-oxidation role.
[0003] Therefore, a wire harness grounding structure for a new energy electric vehicle is proposed. Summary of the Invention
[0004] The purpose of the utility model is to provide a wire harness grounding structure for a new energy electric vehicle to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A wire harness grounding structure for a new energy electric vehicle, including a bolt head, a bolt rod portion is installed at the center of one side of the bolt head, an annular limiting plate is installed on one side of the bolt head, a placement portion is provided between the limiting plate and the bolt rod portion, a grounding terminal is installed inside the placement portion, and a grounding nut is threadedly connected to the bolt rod portion.
[0006] Preferably: The limiting plate is provided with an opening portion.
[0007] Preferably: A convex plate is installed on one side of the grounding terminal, a wire harness is connected to the convex plate, and the convex plate is located inside the opening portion.
[0008] Preferably: The grounding terminal is annular and sleeved outside the bolt rod portion.
[0009] Preferably: The outer diameter of the grounding nut is the same as the outer diameter of the placement portion.
[0010] Preferably: The outer side of the bolt head is convex welded on the vehicle body.
[0011] Preferably: The bolt head, the bolt rod portion and the grounding nut are made of galvanized nickel alloy material, and the grounding terminal is made of brass plated with tin.
[0012] Compared with the prior art, the beneficial effect of the utility model is that the mutual cooperation of the grounding nut, the limiting plate and the bolt head effectively prevents water, air or other corrosive media from contacting the grounding terminal, reduces the corrosion speed of the grounding component, and plays a role in continuously ensuring the corrosion resistance and oxidation resistance of the grounding component. Brief Description of the Drawings
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] In the figure: 1. Bolt head; 2. Limiting plate; 3. Opening; 4. Bolt rod part; 5. Placing part; 6. Grounding nut; 7. Grounding terminal; 8. Convex plate. Specific implementation mode
[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.
[0016] Embodiment
[0017] Please refer to Figure 1 , the present invention provides a technical solution: a grounding structure for a harness of a new energy electric vehicle, including a bolt head 1, a bolt rod part 4 is installed at the center of one side of the bolt head 1, a ring-shaped limiting plate 2 is installed on one side of the bolt head 1, and a placing part 5 is provided between the limiting plate 2 and the bolt rod part 4. A grounding terminal 7 is installed inside the placing part 5, and a grounding nut 6 is threadedly connected to the bolt rod part 4.
[0018] As Figure 1 shown: an opening 3 is provided on the limiting plate 2, a convex plate 8 is installed on one side of the grounding terminal 7, a wire harness is connected to the convex plate 8, and the convex plate 8 is located inside the opening 3; through the above settings, the convex plate 8 can install the wire harness more conveniently and quickly and fix the wire harness. Then, after the grounding terminal 7 is placed inside the placing part 5, the convex plate 8 is located inside the opening 3, thereby restricting the position of the grounding terminal 7.
[0019] As Figure 1 shown: the grounding terminal 7 is annular and sleeved outside the bolt rod part 4; through the above settings, the grounding terminal 7 is sleeved outside the bolt rod part 4, so that the grounding terminal 7 cannot fall off.
[0020] As Figure 1 shown: the outer diameter of the grounding nut 6 is the same as the outer diameter of the placing part 5; through the above settings, the grounding nut 6, the limiting plate 2 and the bolt head 1 cooperate with each other, so that the grounding terminal 7 can be completely covered and isolated from external corrosive media.
[0021] As Figure 1 shown: the outside of the bolt head 1 is convex welded to the vehicle body.
[0022] As Figure 1 shown: the bolt head 1, the bolt rod part 4 and the grounding nut 6 are made of galvanized nickel alloy material, and the grounding terminal 7 is made of brass tin plating; through the above settings, the corrosion resistance is better.
[0023] Working principle: First, the bolt rod part 4 and the ground nut 6 are thread-assembled and then projection-welded to the vehicle body. Then, the vehicle body is painted. Next, in the general assembly workshop, the ground nut 6 is removed. After the ground terminal 7 assembled with the wire harness is placed outside the bolt rod part 4, the convex plate 8 is taken out from the opening part 3 of the limit plate 2, and then the ground terminal 7 is pressed inside the placement part 5 with the ground nut 6.
[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A grounding structure for a wiring harness of a new energy electric vehicle, including a bolt head (1), characterized in that: One side center of the bolt head (1) is provided with a bolt rod part (4). One side of the bolt head (1) is provided with an annular limiting plate (2). A placing part (5) is arranged between the limiting plate (2) and the bolt rod part (4). An earthing terminal (7) is installed inside the placing part (5). An earthing nut (6) is threadedly connected to the bolt rod part (4).
2. The grounding structure of the wiring harness of a new energy electric vehicle according to claim 1, wherein: An opening part (3) is provided on the limiting plate (2).
3. The grounding structure of a new energy electric vehicle harness according to claim 2, characterized in that: One side of the earthing terminal (7) is provided with a convex plate (8). A wire harness is connected to the convex plate (8). The convex plate (8) is located inside the opening part (3).
4. A grounding structure for a harness of a new energy electric vehicle according to claim 1, characterized in that: The earthing terminal (7) is annular and sleeved on the outer side of the bolt rod part (4).
5. A grounding structure for a wiring harness of a new energy electric vehicle according to claim 1, characterized in that: The outer diameter of the earthing nut (6) is the same as the outer diameter of the placing part (5).
6. The grounding structure of a new energy electric vehicle harness according to claim 1, characterized in that: The outer side of the bolt head (1) is projection welded on the vehicle body.
7. A grounding structure for a harness of a new energy electric vehicle according to claim 1, characterized in that: The bolt head (1), the bolt rod part (4) and the earthing nut (6) are made of a zinc-nickel alloy material, and the earthing terminal (7) is made of brass plated with tin.