Energy Storage Spacer Layout for Short-Circuit Insulation
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Solution Overview
Problem
Conventional energy storage apparatuses have a risk of short-circuiting between the energy storage device and the side member due to vibrations or impacts, which can lead to unsafe conditions.
Innovation Solution
The energy storage apparatus includes a spacer with a spacer main body portion and a side member with a side main body portion, where the spacer has a protruding portion that extends further than the electrode terminal and the side member's protruding portion, enhancing electrical insulation and reducing the likelihood of short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the side member is arranged close to the energy storage device to reduce space, then the compactness is improved, but the risk of short circuit increases due to vibration or impact
Solution Approach 1:
The patent introduces a spacer as an intermediary component positioned between the side member and the energy storage device. This spacer includes a protruding portion that extends further than both the side member's protruding portion and the electrode terminal, creating a physical barrier that prevents direct contact while maintaining compact arrangement. The spacer acts as a mediator that preserves both compactness and electrical insulation reliability.
2Strength
If the upper flange is arranged in the vicinity of the electrode terminal to secure the energy storage device, then the fixation strength is improved, but the possibility of short circuit between the flange and electrode terminal increases under vibration or impact
Solution Approach 1:
The spacer serves as an intermediary insulating component positioned between the side member's protruding portion (which provides fixation) and the electrode terminal. The spacer's protruding portion extends beyond both components, ensuring that the fixation function is maintained while electrical insulation is preserved, preventing short circuits under vibration or impact conditions.
Solution Approach 2:
The spacer protrudes in the third direction (intersecting both the first direction of the energy storage device and the second direction of the side member), creating a three-dimensional spatial separation. This dimensional approach allows the side member to maintain fixation strength while the spacer's extension in the perpendicular dimension ensures electrical insulation distance is maintained.
Data Source
AI summary
An energy storage apparatus includes an energy storage device including a case, a spacer including a spacer main body portion arranged on a first side in a first direction of the energy storage device, and a side member including a side main body portion arranged on a first side in a second direction intersecting the first direction of the energy storage device.