Double-layer high-strength flexible circuit board with internal reinforcing mechanism

Abstract

The invention relates to the technical field of circuit boards, in particular to a double-layer high-strength flexible circuit board with an internal reinforcing mechanism. The double-layer high-strength flexible circuit board comprises a circuit board, a reinforcing plate and a heat dissipation structure, and the circuit board is adhered to the outer side of the reinforcing plate through an adhesive; the reinforcing plate and the circuit board are fixedly connected to the two sides of the heat dissipation structure through positioning screws; the heat dissipation structure comprises heat-conducting plates, a plurality of uniformly distributed heat-conducting columns protrude from the outer sides of two ends of the heat-conducting plates; the heat-conducting columns penetrate through the reinforcing plate and is connected with the circuit board; and supporting columns are welded between the heat conducting plates. The beneficial effects are that: a reinforcing structure and a heat dissipation structure can be added between the two layers of flexible circuit boards, the strength and toughness of the flexible circuit board can be improved through the reinforcing structure, the protection effect is improved, the heat dissipation effect between the circuit boards can be improved through the heat dissipation structure, the use effect of the circuit boards is prevented from being affected by high temperature, the circuit boards are protected against high-temperature damage, and the heat dissipation structure can also achieve the effect of improving the strength of the circuit boards.

Description

technical field [0001] The invention relates to the technical field of circuit boards, in particular to a double-layer high-strength flexible circuit board with an internal reinforcing mechanism. Background technique [0002] Flexible Printed Circuit (FPC) is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness and good bendability. A double-layer flexible circuit board is a combination of two-layer flexible circuit boards. [0003] Since the double-layer flexible circuit board needs to be installed with electronic components on both sides, the double-sided flexible circuit board cannot add a reinforcing plate on the back to increase the strength and toughness of the circuit board like a single-layer circuit board. The reinforcement structure is added to the inner side of the board, but adding the reinforcement structure from t...

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Problems solved by technology

[0003] Since the double-layer flexible circuit board needs to be installed with electronic components on both sides, the double-sided flexible circuit board cannot add a reinforcing plate on the back to increase the strength and toughness of the circuit board like a single-layer circuit board. The reinforcement structure is added to the inner side of the board, but adding the reinforcement structure from the inner layer will reduce the air permeability and heat dissipation effect of the circuit boards on both sides, resulting in the inability of the circuit board to dissipate heat reason

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