The cage-style terminal consists of three parts: the terminal, the connecting piece, and the spring piece. After riveting the terminal and the connecting piece together, the spring piece is attached to the connecting piece.

Cage terminal has the characteristics of high shock resistance, short wiring time, coupled with its heat resistance, corrosion resistance, is widely used in the field of electrical connection in the world. However, there are also some problems in the actual use of cage spring terminal, terminal burning failure often occurs, the main phenomenon is terminal burning, melting and so on.