Energy Storage Apparatus Adhesive Fixation
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Solution Overview
Problem
Conventional energy storage apparatuses face challenges in firmly fixing energy storage devices to the outer case, particularly under external vibrations or impacts, which can lead to damage and disconnection.
Innovation Solution
The energy storage apparatus employs a configuration with multiple adhesive layers to securely adhere the energy storage device between the outer case and an insulating member, ensuring firm fixation by using a first adhesive layer between the insulating member and the energy storage device, and a second adhesive layer between the insulating member and the outer case, with optional third and fourth adhesive layers for additional stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single adhesive layer is used to fix the energy storage device to the outer case, then the device can be assembled with simple structure, but the fixation strength is insufficient under external vibrations or impacts
Solution Approach 1:
The single adhesive layer is divided into multiple adhesive layers (first adhesive layer between the energy storage device and insulating member, second adhesive layer between the insulating member and outer case). This segmentation allows each adhesive layer to perform specific fixation functions, significantly improving the overall fixation strength under external vibrations or impacts while maintaining reasonable structural complexity.
2Reliability
If multiple adhesive layers are added to improve fixation, then the fixation strength increases, but the device complexity increases
Solution Approach 1:
The insulating member serves as an intermediary element between the energy storage device and the outer case. The first adhesive layer fixes the insulating member to the energy storage device, while the second adhesive layer fixes the insulating member to the outer case. This intermediary approach distributes the fixation function across multiple interfaces, improving reliability without excessive complexity.
3Stability of the object's composition
If the insulating member is firmly fixed to prevent movement, then the energy storage device is securely held, but adhesive layers may be exposed or short-circuiting may occur
Solution Approach 1:
The harmful functions (adhesive exposure and electrical conduction) are extracted from the insulating member by using a dedicated sealing member. The sealing member is disposed between the insulating member and the outer case, specifically preventing adhesive layers from being exposed to the external environment and preventing short-circuiting between adjacent energy storage devices, while allowing the insulating member to maintain firm fixation for position stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively prevents movement and disconnection of the energy storage devices, enhancing their fixation to the outer case and maintaining gas-tightness, while minimizing the risk of adhesive layer exposure and preventing short-circuiting or heat transfer between devices.
Implementation Method 1
a first adhesive layer by which the insulating member and the energy storage device are adhered to each other
Implementation Method 2
a second adhesive layer by which the insulating member and the side wall are adhered to each other
Data Source
AI summary
An energy storage apparatus including: an outer case having a bottom wall and a side wall; an energy storage device; an insulating member disposed at a position where the energy storage device is sandwiched between the bottom wall and the insulating member; a first adhesive layer which makes the insulating member and the energy storage device adhere to each other; and a second adhesive layer which makes the insulating member and the side wall adhere to each other.