What are the common faults of waterproof connectors?
Common faults of waterproof connectors include: poor contact of connectors, short circuits between wires, open circuits, grounding, etc.
The reasons are as follows:
1) Natural damage
The use of the water-proof connecting wire harness exceeds the service life, which causes the wire to age, the insulation layer is broken, and the mechanical strength is significantly reduced, causing short circuits, open circuits, and grounding between the wires, causing the wire harness to burn out. The wiring harness terminal is oxidized and deformed, resulting in poor contact, etc., which may cause the electrical equipment to fail to work normally.
2) The wiring harness is damaged due to the failure of electrical equipment
When the electrical equipment of the waterproof cable is overloaded, short-circuited, grounded, and other faults, the wiring harness may be damaged.
3) Human failure
When assembling the waterproof connector or repairing auto parts, metal objects crush the wire bundle and break the insulation layer of the wire bundle; the position of the wire bundle is improper; the lead position of the electrical equipment is connected incorrectly; the positive and negative leads of the battery are connected reversely; At times, random connection, random cutting of wiring harness wires, etc., can cause abnormal operation of electrical equipment and even burn the wiring harness.
As the structure of the waterproof cable is becoming more and more diversified, new structures and application areas are constantly emerging, and it is difficult to solve the classification and naming problems with a fixed model. However, some basic classifications are still valid.
According to the functions of internal and external connections, the interconnection level is divided into five levels:
1. Internal connection of chip package
2. The IC package pins are connected to the PCB. Typical connector IC socket.
3. The printed circuit is connected to the wire or the printed circuit board. Typical connectors for printed circuit connectors.
4. Bottom plate and connection. Typical connector for cabinet connector.
5. The connection between equipment and equipment. The typical product is a circular connector.
The specifications of the connecting wire are classified according to the International Electrotechnical Commission (IEC). For example, electronic equipment belongs to the category of connectors and electromechanical components: Specification level: Subcategory of category: Connector Circular connector type: YB type circular connector variety: yb3470 specification .
In the management of waterproof connectors in my country, connectors, switches, keyboards, etc. are collectively referred to as electrical connector components, while electrical connector components and relays are collectively referred to as electromechanical components.
