Circuit board connection structure and mobile terminal

Abstract

The invention discloses a circuit board connection structure and a mobile terminal. The circuit board connection structure comprises a circuit board and a flexible printed circuit board. Spring sheets are arranged on the circuit board. The flexible printed circuit board comprises a base material layer, a copper foil layer, a weld disc and a conductive layer. The copper foil layer is arranged on the base material layer. The weld disc is arranged on the copper foil layer. The conductive layer is laminated on the weld disc. The conductive layer is abutted against the spring sheets, thereby achieving electrical connection between the weld disc and the spring sheets. According to the invention, by arranging the conductive layer on the weld disc and abutting the conductive layer against the spring sheets, electrical connection between the weld disc and the spring sheets can be ensured, thereby achieving electrical conduction between the flexible printed circuit board and the circuit board; and a damage which easily occurs to the weld disc caused by a direct contact between the spring sheets and the weld disc can be avoided. In addition, the conductive layer is additionally arranged on the weld disc directly, so when there are spring sheets corresponding to the weld disc, a problem of a bad contact caused by errors and omissions which easily occur when the weld disc is abutted against the spring sheets one by one can be avoided, and reliability of the electrical connection between the flexible printed circuit and the circuit board is ensured.

Description

technical field [0001] The invention relates to the communication field, in particular to a circuit board connection structure and a mobile terminal. Background technique [0002] At present, the flexible circuit board is usually in pressure contact with the elastic piece on the circuit board through the soldering pad provided thereon, so as to realize the electrical connection and conduction between the flexible circuit board and the circuit board. However, due to the hard texture of the shrapnel, the pads on the flexible circuit board are small in size and soft in texture. Therefore, when the pads are in pressure contact with the shrapnel, the pads are easily damaged by the pressing force of the shrapnel. Thus affecting the normal use of the flexible circuit board. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present invention is to provide a circuit board connection structure and a mobile terminal that prevent pads fro...

AI Technical Summary

Problems solved by technology

However, due to the hard texture of the shrapnel, the pads on the flexible circuit board are small in size and soft in texture. Therefore, when the pads are in pressure contact with the shrapnel, the pads are easily damaged by the pressing force of the shrapnel. Thus affecting the normal use of the flexible circuit board

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