Many people will ask what kind of connector does the battery need? Can't you press the slot directly? Why is there a special battery connector.

The following series will explain the structure and some knowledge of battery connectors:

The basic structure of the battery connector includes: ① contact ② insulator ③ housing ④ accessories

1. The contact point of the battery connector is the core of the connector that performs the electrical connection function. The contact pair is generally composed of positive contact piece and negative contact piece.

The positive contact part is a rigid part, and the shape is cylindrical (round pin), square column (square pin) or flat (insert). Positive contacts are usually made of brass and phosphor bronze.

The negative contact part is the jack, which is the key part of the contact pair. When inserting the pin, the elastic deformation depends on the elastic structure, and the elastic force is in close contact with the positive contact part to complete the connection. The structural forms of jack include column (slot, shrink mouth), tuning fork, cantilever beam (longitudinal slot), folding (longitudinal slot, Figure 9), box (square jack), hyperbolic spring jack, etc.

2. The battery connector insulator is often referred to as the base plate or plug plate. Its function is to arrange the contacts according to the required position and space to ensure the insulation performance between the contacts and the shell. Good insulation resistance, withstand voltage performance and workability are the basic requirements for selecting insulating materials to be processed into insulators.

3. The shell, also known as the shell, is the outer cover of the connector, which provides mechanical protection for the built-in insulating mounting plate and the locking device, and is calibrated when inserting the plug and socket to fix the connector on the device.