Battery Wiring Module Cover Locking for Correct Attachment Orientation
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Solution Overview
Problem
Existing battery wiring modules face the risk of erroneous attachment of covers due to improper engagement of engaging portions with non-proper engagement portions, leading to potential misalignment and instability.
Innovation Solution
The battery wiring module incorporates a case body with specific engagement portions and regulation portions that regulate the displacement of engaging portions, ensuring proper orientation and attachment by preventing engagement with incorrect portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cover is formed separately from the case body, then manufacturing and assembly are simplified, but the risk of improper orientation attachment increases
Solution Approach 1:
The asymmetric lengths of the first and second engaging portions provide an inherent orientation guide for the separately formed cover. The longer first engaging portion with its leading end portion that can be regulated by the regulation portion creates a unique configuration that only fits in the correct orientation, ensuring proper attachment orientation while maintaining the manufacturing advantages of a separately formed cover.
Solution Approach 2:
The regulation portion acts as an intermediary element between the first engaging portion and the second engagement portion. It mediates the engagement process by regulating the displacement of the first engaging portion, ensuring that the cover is attached in the correct orientation before any engagement occurs, thus preventing improper orientation attachment.
2Stability of the object's composition
If engaging portions are made longer to improve engagement stability, then attachment security increases, but the risk of engagement with incorrect portions also increases
Solution Approach 1:
The first engaging portion is made longer than the second engaging portion, creating an asymmetric configuration. This asymmetry provides engagement stability through the longer first engaging portion while simultaneously preventing engagement with incorrect portions through the regulation mechanism that acts on the leading end portion of the first engaging portion, thus maintaining both stability and accuracy.
Solution Approach 2:
The regulation portion performs a preliminary action by regulating the displacement of the first engaging portion before it can engage with the second engagement portion. This preliminary regulation ensures that even though the first engaging portion is longer for stability, it cannot engage with incorrect portions, thereby maintaining engagement accuracy while benefiting from the enhanced stability of the longer engaging portion.
Data Source
AI summary
A first cover includes: a cover body portion that covers a wire insertion portion, a first engaging portion that extends from the cover body portion to a case body side, and is engaged with a first engagement portion of the case body, and a second engaging portion that extends from the cover body portion to the case body, and is engaged with a second engagement portion of the case body. A length in an extending direction of the first engaging portion is set longer than a length in an extending direction of the second engaging portion. Moreover, the case body includes a first regulation portion that abuts against a leading end portion in the extending direction of the first engaging portion when the first engaging portion is about to be engaged with the second engagement portion, and regulates displacement of the first engaging portion in an attachment direction.