Battery Case Structural Body With End Openings
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Solution Overview
Problem
Existing battery case designs for electric and hybrid vehicles face poor workability and interference issues due to the need for restraining jigs to be retracted after battery assembly, which complicates subsequent welding or fastening operations.
Innovation Solution
A battery case structural body with terminal members at both ends and a case body that allows downward embedding of batteries, featuring end openings to avoid jig interference and enable flexible positioning, along with the option for elastic members and specific cross-sectional shapes for enhanced heat dissipation and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper parts of both ends of the battery are restrained by arm-shaped restraining jigs, then the battery can be held and embedded into the battery case, but the workability becomes poor and subsequent welding or fastening operations cannot start unless the restraining jigs are retracted
Solution Approach 1:
The restraining jig is divided into a lower restraining part that remains in place and an upper restraining part that can be separated or retracted. This segmentation allows the lower part to continue providing support while the upper part is removed to enable subsequent welding or fastening operations without requiring complete jig retraction.
Solution Approach 2:
The lower restraining part is designed to be positioned and fixed in advance before the upper restraining part is removed. This preliminary positioning ensures that the battery remains properly held during the embedding process while allowing subsequent access for welding or fastening operations.
2Ease of manufacture
If space is secured for restraining parts of restraining jigs not to interfere with sidewalls, then the battery can be assembled, but the device complexity increases due to space requirements
Solution Approach 1:
The restraining jig design transitions from requiring horizontal clearance to utilizing vertical separation. The lower restraining part operates in the lower dimension space while the upper restraining part can be removed vertically, eliminating the need for lateral clearance between restraining parts and sidewalls.
Solution Approach 2:
Instead of designing the restraining jig to avoid sidewall interference through lateral positioning, the invention inverts the approach by allowing the lower restraining part to be positioned close to sidewalls while the upper restraining part is separated or removed, reversing the traditional spatial arrangement.
Data Source
AI summary
A battery case structural body includes: two terminal members arranged at both ends of a battery; and a case body that holds the battery. The two terminal members includes two engaging parts, each of which is provided to each terminal member. The case body includes: an accommodating part including a frame and accommodating the battery that is downwardly embedded into the frame from above; two end openings, each of which is formed so as to cut at least upper part of the frame and exposes at least a part of each of the two terminal members arranged at both ends of the battery accommodated in the accommodating part; and two engaged parts engaged with the two engaging parts of the two terminal members.