Electronic Component Unit Case Structure for Shorter Bus Bars

Solution Overview

Problem

Existing electronic component units face challenges with lengthy and heavy bus bars that restrict connection positions, leading to reduced flexibility and increased weight.

Innovation Solution

The integration of a case with a case body and separate wall bodies allows bus bars to penetrate through gaps, enabling shorter and lighter designs with adjustable connection positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the bus bar bypasses the case, then the connection position flexibility is improved, but the bus bar length and weight increase

Engineering Contradiction:

Improveconnection position flexibilityVSAvoidbus bar weight

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The case is divided into a case body and a separate wall body, creating a gap between them. This segmentation allows the bus bar to penetrate through the gap rather than bypassing the entire case, thereby reducing bus bar length and weight while maintaining connection flexibility through adjustable gap positioning.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The gap between the case body and wall body acts as an intermediary passage for the bus bar. This intermediary structure enables the bus bar to pass through the case in a controlled manner, achieving both shortened length and flexible connection positions by adjusting where the gap is located.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the bus bar bypasses the case, then the connection position flexibility is improved, but the bus bar length increases

Engineering Contradiction:

Improveconnection position flexibilityVSAvoidbus bar length

Core Design Contradiction:

Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The case is divided into a case body and a separate wall body, creating a gap between them. This segmentation allows the bus bar to penetrate through the gap rather than bypassing the entire case, thereby reducing bus bar length and weight while maintaining connection flexibility through adjustable gap positioning.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The gap between the case body and wall body acts as an intermediary passage for the bus bar. This intermediary structure enables the bus bar to pass through the case in a controlled manner, achieving both shortened length and flexible connection positions by adjusting where the gap is located.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Strength

If the wall body is attached to the case body, then the structural integrity is improved, but the manufacturing complexity increases

Engineering Contradiction:

Improvecase structural integrityVSAvoidcase manufacturing complexity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The case is divided into a case body and a separate wall body that can be manufactured independently and then attached together. This segmentation allows each part to be manufactured separately using standard processes, and the attachment creates the necessary gap for bus bar penetration, balancing structural integrity with manufacturing ease.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250234471A1Electronic component unit and manufacturing method thereof

Publication Date: 2025.07.17 HONDA MOTOR CO LTD

AI summary

An electronic component unit integrates a plurality of electronic components. The electronic component unit includes, a plurality of electronic components, a case that accommodates the plurality of electronic components, a mold material with which an inside of the case is filled and that seals the plurality of electronic components, and at least one bus bar connected to each of the electronic components. The case includes a case body that supports the plurality of electronic components, and at least one wall body formed separately from the case body and attached to the case body, and the bus bar penetrates through a gap between the case body and the wall body.