Electronic Housing Guide Structure for PCB-Safe Assembly
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Solution Overview
Problem
The assembly of electronic apparatuses requires vertical flipping of the housing, which can lead to contact between the circuit board and the housing, potentially causing breakage, and involves complex work processes and increased part count.
Innovation Solution
A structure and assembly method that utilize a heat radiation member with a plate-shaped main body, upper and lower circuit boards, and a housing with a guide portion to avoid contact between the lower circuit board and the housing during assembly by inserting the main body portion through a through hole, guided by the housing's guide portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the housing is vertically flipped during assembly, then the assembly process can be completed, but the circuit board may contact the housing and break
Solution Approach 1:
A guide portion is introduced as an intermediary element between the circuit board and the housing. This guide portion guides the circuit board during insertion through the through hole, preventing direct contact between the circuit board and the housing while still allowing the assembly process to proceed without flipping the housing.
2Ease of manufacture
If the housing is vertically flipped during assembly, then the assembly can be completed, but the assembly complexity and space requirements increase
Solution Approach 1:
The guide portion is pre-formed as an integral part of the housing structure before assembly. This preliminary action eliminates the need for complex flipping operations during assembly, as the guide portion automatically guides the circuit board into the correct position through the through hole in a single insertion motion.
3Reliability
If the circuit board is protected from housing contact, then circuit breakage is avoided, but the housing structure becomes more complex
Solution Approach 1:
The guide portion is merged with the housing structure as an integral component rather than a separate protective element. This combining approach provides protection for the circuit board while minimizing additional structural complexity, as the guide portion is formed directly within the housing during manufacturing.
Data Source
AI summary
According to the present disclosure, an electronic apparatus comprises: a heat radiation member including a main body portion having a plate shape; an upper circuit board provided on a front surface portion of the main body portion; a lower circuit board provided on a rear surface portion of the main body portion; and a housing having a bottomed box shape in which the main body portion, the upper circuit board, and the lower circuit board are housed, wherein a guide portion is formed on the housing, and the guide portion guides the main body portion to a position in which contact between the lower circuit board and the housing is avoided when the main body portion is inserted from a through-hole of a wall surface portion of the housing into the housing in a state where the lower circuit board is attached to the main body portion.