Flexible printed circuit board used for vehicle lamp circuit

Abstract

The invention discloses a flexible printed circuit board used for a vehicle lamp circuit in the flexible printed circuit board technology field. The flexible printed circuit board comprises a flexiblebase material plate. The top and the bottom of the flexible base material plate are provided with bonding layers. One side of each bonding layer, which is far away from the flexible base material plate, is provided with a heat conduction layer. One side of the heat conduction layer, which is far away from each bonding layer, is provided with a heat dissipation layer. The inner cavity of a grooveis vertically provided with a metal heat dissipation rod. The other end of the metal heat dissipation rod is connected to the heat conduction layer. The outer wall of the inner cavity of the groove isuniformly provided with honeycomb heat dissipation holes. A heat dissipation cavity is arranged in the heat dissipation layer. One side of the heat dissipation layer, which is far away from the heatconduction layer, is provided with a heat dissipation fin. The two surfaces of the flexible printed circuit board carry out heat dissipation, heat dissipation efficiency is rapid and heat dissipationquality is high; through arranging the heat conduction layer, the heat generated by the flexible base material plate during usage is conducted away and is transmitted into the heat dissipation layer through the metal heat dissipation rod; and a metal heat dissipation wire uniformly disperses the heat and the heat is timely discharged through the heat dissipation fin so that a whole electrical component can be prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of flexible circuit boards, in particular to a flexible circuit board used for vehicle light circuits. Background technique [0002] Flexible circuit boards, also known as "soft boards", are printed circuits made of flexible insulating substrates. Flexible circuits provide excellent electrical performance, can meet the design needs of smaller and higher density mounting, and also help reduce assembly processes and enhance reliability. Flexible circuit boards are the only solution to meet the miniaturization and mobility requirements of electronic products. It can be bent, wound, and folded freely, and can withstand millions of dynamic bendings without damaging the wires. It can be arranged arbitrarily according to the spatial layout requirements, and can be moved and stretched in three-dimensional space, so as to achieve the integration of component assembly and wire connection. The flexible circuit board ...

AI Technical Summary

Problems solved by technology

[0003] Existing flexible circuit boards are used in car light circuits, and the continuous heat generation in the long-term working state is huge. If the heat cannot be dissipated in time, it will cause damage to the entire electronic components. The problem of unsatisfactory heat dissipation of the existing flexible circuit boards may cause It has a serious negative impact on the work, for this reason, we propose a flexible circuit board for car light circuits

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