Motor Compressor Electric Part Fixing Structure
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Solution Overview
Problem
The existing electric part fixing structure for motor-driven compressors is cumbersome and difficult to assemble due to limited substrate hole sizes, making it challenging to pass multiple leads through their corresponding holes.
Innovation Solution
An electric part fixing structure that includes a plastic guide member with guide holes to facilitate the positioning and passage of leads, combined with a leaf spring for secure fixation without screws, reducing assembly complexity and improving cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If leads are passed through holes in the substrate to mount the electric part, then the substrate can be fixed to the cooling member, but the work for mounting the substrate becomes troublesome and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-forming guide holes in the substrate at appropriate positions before mounting the electric part. These guide holes are prepared in advance to receive the leads, eliminating the need to manually pass leads through the substrate during assembly. This preliminary preparation significantly reduces mounting time and complexity while maintaining proper lead positioning.
2Manufacturing precision
If the substrate hole size is limited to fit the leads, then the substrate can be precisely positioned, but it becomes difficult to pass multiple leads through their corresponding holes
Solution Approach 1:
The patent applies segmentation by dividing the substrate into multiple regions with individually positioned guide holes. Each guide hole is separately formed at the precise location where a lead needs to pass through. This segmented approach allows each hole to be optimally positioned for its specific lead while maintaining manufacturing precision, and enables multiple leads to pass through their respective holes without interference.
3Reliability
If screws are used to fix the electric part to the cooling member, then the fixation is secure, but the assembly structure becomes complex and costly
Solution Approach 1:
The patent applies the extraction principle by removing the screws from the assembly structure. Instead of using traditional screw fixation to secure the electric part to the cooling member, the invention extracts this fastening element and replaces it with a simplified structure where the substrate with guide holes serves as the mounting platform. This eliminates the need for separate fasteners while maintaining secure fixation through the integrated substrate design.
4Adaptability or versatility
If multiple leads are routed through the substrate, then electrical connections can be established, but the assembly process becomes cumbersome and difficult
Solution Approach 1:
The patent applies preliminary action by pre-forming multiple guide holes in the substrate at the appropriate positions before assembly. These guide holes are prepared in advance to receive and guide the leads through the substrate. This preliminary preparation allows multiple leads to be easily routed through their designated holes during assembly, maintaining electrical connection capability while significantly simplifying the assembly process compared to manual lead routing.
Data Source
AI summary
An electric part fixing structure for a motor-driven compressor includes an electric part having a plurality of leads and a guide member for positioning the leads. The guide member is made of a plastic and has a guide hole through which the lead is passed.