Double side printed wiring board

Abstract

The invention discloses a double side printed wiring board. The double side printed wiring board includes a wiring board body; left and right sides of the wiring board body are provided with upper fixation frames and lower fixation frames; an upper connection frame and a lower connection frame are respectively disposed above the upper fixation frames and below the lower fixation frames; an intermediate heat dissipation device is disposed between the upper fixation frames on the left and right sides of the wiring board body; the intermediate heat dissipation device is disposed between the lowerfixation frames on the left and right sides of the wiring board body; external heat dissipation devices are mounted on the upper connection frame and the lower connection frame; a structure is simple, construction is clear and easy to understand, and the fixation frames and the connection frames outside the wiring board body of the invention are detachably installed to facilitate installation ofthe wiring board body; the wiring board body is placed on the innermost side of a whole body, and protective properties are good; and a double-layer wiring board generates more heat during operation,the outside of the wiring board body is provided with the intermediate heat dissipation devices and the external heat dissipation devices for heat dissipation, efficient heat dissipation of heat dissipation board bodies is achieved by rotation of blades driven by separately water flow circularly flowing in a cooling pipe, heat dissipation boards and micro motors, and the service life is improved.

Description

technical field [0001] The invention relates to the field of double-sided circuit boards, in particular to a double-sided printed circuit board. Background technique [0002] With the development of high technology, people need electronic products with high performance, small size and many functions, which promotes the development of printed circuit board manufacturing to be light, thin, short and small, with limited space, more functions, higher wiring density and larger aperture. Small. From 1995 to 2005, the minimum hole diameter of mechanical drilling batch capacity dropped from 0.4mm to 0.2mm, or even smaller. The metallized hole diameter is also getting smaller and smaller. The quality of the metallized holes on which the interconnection between layers depends is directly related to the reliability of printed boards. Double-sided circuit boards have higher practicability, but double-sided circuit boards will generate more heat during use, especially under long-term ...

AI Technical Summary

Problems solved by technology

Double-sided circuit boards have higher practicability, but double-sided circuit boards will generate more heat during use, especially under long-term working conditions, traditional double-sided circuit boards have short service life and poor heat dissipation , therefore, there is a need for a double-sided printed circuit board with excellent heat dissipation

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