Battery Pack Holding Structure for Device Component Protection
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Solution Overview
Problem
Existing battery pack structures risk damaging device components when a load is applied to the case due to direct contact with the device component.
Innovation Solution
A battery pack design featuring a holding member with specific fixing and connecting portions that allows the device component to be held at a distance from the opposing wall, enabling the component to displace away from the wall when a load is applied, thus preventing contact and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the device component is held close to the mounting surface to reduce space, then the battery pack size is reduced, but the device component is vulnerable to damage when load is applied to the case
Solution Approach 1:
The holding member is designed with elastic deformation capability, transforming from a static structure to a dynamic one that can adapt to external loads. When load is applied to the case, the holding member deforms elastically to displace the device component away from the opposing wall, preventing damage while maintaining compact dimensions.
Solution Approach 2:
The elastic holding member is pre-configured to provide cushioning protection before any load is applied. The inherent elasticity of the holding member creates a buffer zone that activates automatically when external forces are applied, protecting the device component without requiring additional protective structures.
2Reliability
If additional reinforcing members are added to protect the device component, then the device component protection is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The holding member serves multiple functions simultaneously: it holds the device component in position, provides elastic cushioning protection against loads, and maintains compact packaging. This multi-functionality eliminates the need for separate reinforcing members, reducing structural complexity while improving protection.
Solution Approach 2:
The protective function previously requiring separate reinforcing members is merged into the holding member itself. The holding member combines the positioning and protection functions in a single integrated component, simplifying the overall structure and reducing the number of parts.
3Reliability
If the case is made larger to provide clearance between the device component and opposing wall, then the device component protection is improved, but the battery pack size increases
Solution Approach 1:
Instead of providing static clearance space, the solution uses dynamic displacement capability. The elastic holding member allows the device component to move away from the opposing wall only when needed (under load), maintaining compact case dimensions while providing protection through active displacement rather than passive spacing.
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
The design effectively suppresses damage to device components by allowing them to move away from the opposing wall under load, without increasing the size of the case or requiring additional reinforcing members.
Implementation Method 1
When a load that deforms the opposing wall such that the opposing wall bulges toward the device component acts on the opposing wall, the holding member is deformed such that the device component is displaced in a direction in which the device component is spaced away from the opposing wall
Data Source
AI summary
The battery pack includes a battery stack, a holding member, a device component, and a case. The case has opposing walls facing the device component. The holding member has a pair of fixing portions, a holding portion, and a pair of connecting portions. Holding member, when the load for deforming the opposing wall so that the opposing wall bulges toward the device component acts on the opposing wall, the device component is deformed so as to displace in a direction away from the opposing wall.