Electronic Device Cable Assembly Heat Dissipation
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Solution Overview
Problem
The existing methods for assembling photoelectric conversion modules face issues with positional deviation of heat conduction sheets, leading to reduced workability and yield, and require consideration of heat generated by the photoelectric conversion unit, which affects the module's heat radiation performance.
Innovation Solution
An electronic device with a cable assembly that includes a circuit substrate, an electrical connector, a heat conducting sheet, and a three-part metal housing structure where the heat conducting sheet is accommodated between the housings to prevent positional deviation and enhance heat radiation, with the cable thermally connected to the housings for efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the electrical connector and substrate are pushed into the metal case from an opening, then the assembly process is simple, but the heat conduction sheets may deviate from their correct positions
Solution Approach 1:
The metal case is divided into three separate parts (first metal case, second metal case, third metal case) that are assembled in sequence. This segmentation allows the heat conduction sheets to be positioned and fixed between the first and second metal cases before the third metal case is attached, preventing positional deviation while maintaining assembly simplicity.
2Temperature
If the entire module is designed considering heat generation, then heat radiation performance is improved, but the device complexity increases
Solution Approach 1:
The heat conduction sheets are merged with the metal case structure, where the inner surfaces of the second and third metal cases serve as heat dissipation surfaces. This integration achieves effective heat radiation without requiring separate heat sink components, thereby improving temperature control while avoiding increased device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents positional deviation of heat conducting sheets during assembly and achieves high heat radiation performance by thermally connecting the cable and metal housings, ensuring reliable and efficient heat dissipation from the electronic device.
Implementation Method 1
a heat conducting sheet disposed in at least a portion of the circuit substrate... The heat conducting sheet is accommodated in an accommodation space... so as to come into contact with at least one of the second metal housing and the third metal housing
Implementation Method 2
The cable and the first metal housing are thermally connected to each other
Data Source
AI summary
The electronic device with cable includes a circuit substrate provided with a heat generating element mounted thereon, an electrical connector connected to one end of the circuit substrate, a cable that is connected to the other end of the circuit substrate, heat conducting sheets and disposed in the circuit substrate, a first metal housing including an accommodation portion accommodating the electrical connector and a pair of wall portions communicating with the accommodation portion, a second metal housing fitted to the first metal housing so as to cover a one-side opening of the pair of wall portions, and a third metal housing fitted to the second metal housing so as to cover the other-side opening of the pair of wall portions. The cable and the first metal housing are thermally connected to each other.