Ji Jin is a professional engaged in various types of plastic mold design, manufacture and injection molding processing of production-oriented enterprises.
Excellent car wiring harness fixation achieves a certain anti-aging and wear-resistant effect. If the car wiring harness is not fixed properly, due to vibration and the net weight of the car wiring harness itself, it is very easy to age the car wiring harness. It is also very easy to interfere with other auto parts of the car body if the equipment falls off and leads to a short circuit or open circuit fault to increase the equipment failure rate of the car.
The fixed design scheme of the automobile wiring harness is a very important item in the design scheme of the wiring harness layout. The key methods are cable ties, buckles, and brackets.
1. Car wiring harness
Cable ties are the most widely used raw materials for securing safety protection in automotive wiring harnesses, mainly PA66 materials. The main function of the cable tie is to tighten the car wiring harness and make the wiring harness firmly and reliably fix the body sheet metal holes, anchor bolts, thick steel plates, etc., to avoid the wiring harness vibration, movement, or interference with other auto parts and damage the wiring harness.
The round hole type cable ties are generally used in places where the sheet metal is relatively flat and the wiring space is large and the wiring harness is placed gently.
The round hole type cable tie is generally used in the main rod or branch of the car wiring harness. After installation, the round hole type cable tie cannot be rotated casually. It has strong fixing reliability and is generally used in the front cabin of the car. The diameter of the round hole type cable ties is generally 12 × 6 mm and 12 × 7 mm.
The bolt-type cable ties are generally used in places where the sheet metal is thick or the unevenness of the wiring harness is irregular, such as the firewall of the car. The diameter of the bolt-type cable ties is generally 5 mm or 6 mm.
Card plate type cable ties are generally used on the edge of thick steel sheet metal to clamp the sheet metal so that the car wiring harness can be smoothly connected, and in addition, to prevent the edge of the sheet metal from cutting the car wiring harness, it is generally used in the car wiring harness and bumper in the car cab. , Sheet metal thickness is generally 0.8~2.0 mm.
The function of the car buckle is the same as that of the cable tie, all of which is to better fix and maintain the car wiring harness. The main raw materials are PP, PA6, PA66, POM, and so on. Common types of automobile snaps include T-type snaps, L-type snaps, pipe clip snaps, connector snaps, etc.
T-type buckles and L-type buckles are generally used in places where the wiring space of the wiring harness is narrow due to the installation of exterior decorations or where the wiring of the wiring harness itself is not suitable for opening holes, such as the edge of the roof of the car cab, which is generally a round hole or waist. round hole.
Pipe clips are generally used in places that are suitable for opening holes or cannot be opened, such as car engine bodies, which are generally tongue-shaped sheet metal;
The connector buckle is mainly used to cooperate with the connector to fix the connector on the car body. It is generally a round hole, a waist hole or a lock hole. This kind of buckle is more targeted, and generally, a certain kind of buckle is Applicable only to a certain series of connectors.
3. Automotive wiring harness bracket guard plate
The versatility of the car wiring harness bracket guard is not good. The support frame guards designed for different models are also different. The main raw materials are PP, PA6, PA66, POM, ABS, etc., and the development and design costs are generally high.
Automotive wiring harness brackets are generally used to fix connectors, and are generally used where different wiring harnesses are connected;
Automobile wiring harness guards are generally used to fix and maintain wiring harnesses and are generally used on wiring harnesses of automobile engine blocks.
Automotive wiring harnesses should have high and low-temperature resistance, temperature and environmental humidity cyclic transformation resistance, vibration resistance, smoke resistance, and organic solvent resistance in industrial production. Therefore, the external maintenance of automotive wiring harnesses plays a particularly important role. Effective wiring harness external maintenance raw materials and wrapping methods can not only ensure the quality of automotive wiring harnesses but also control costs and improve economic benefits.