Battery Pack Handle and Dual-Housing Retention Structure
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Solution Overview
Problem
Existing battery packs with a box-mounted structure suffer from batteries easily falling off due to insufficient bearing force at the bottom, affecting normal use and stability.
Innovation Solution
A battery pack design featuring a dual-housing box structure with a handle that includes connecting portions and limiting portions to provide extrusion pressure, ensuring secure accommodation and easy handling of battery cells, and enhancing structural stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a box-mounted structure is used to hold battery cells, then the battery pack provides a contained structure for battery cells, but the bearing force at the bottom of the box is insufficient causing batteries to fall off
Solution Approach 1:
The box is divided into a first box body and a second box body, with the second box body having a bottom wall that can be rotated relative to the first box body. This segmentation allows the bottom wall to dynamically adjust and provide enhanced bearing support for the battery cells, preventing them from falling off while maintaining structural stability.
Solution Approach 2:
The bottom wall of the second box body is designed to be rotatable relative to the first box body, transforming the static box structure into a dynamic one. This dynamic capability allows the bottom wall to adapt to different states (rotated or non-rotated), providing improved bearing force when needed while maintaining structural integrity.
2Force
If the box structure is reinforced to increase bearing force, then batteries are prevented from falling off, but the weight of the battery pack increases
Solution Approach 1:
Instead of statically reinforcing the box structure, the patent employs a dynamic bottom wall that can rotate to provide enhanced bearing force only when needed. This approach increases bearing capability without permanently adding significant weight, as the reinforcement is activated only during specific operational states.
Solution Approach 2:
The bearing force is enhanced by changing the spatial orientation parameter of the bottom wall through rotation, rather than by increasing material quantity or structural thickness. This parameter change allows the same structure to provide different levels of support without proportional weight increase.
3Ease of operation
If a handle is added to improve handling, then usability is improved, but the device complexity increases
Solution Approach 1:
The handle is integrated with the second box body through a connecting structure, merging two functional elements (handle and box) into a unified design. This integration improves handling ease while minimizing the increase in device complexity by sharing structural components and space.
Solution Approach 2:
The connecting structure between the handle and the second box body serves multiple functions: it provides structural support, enables relative movement, and facilitates both carrying and the rotation of the bottom wall. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
Data Source
AI summary
A battery pack and an electrical consumer are provided. The battery pack includes multiple battery cells, box, and a handle. The box includes a first housing and a second housing. The first housing and the second housing together define a first accommodation cavity and at least one second accommodation cavity, and each of the first housing and the second housing is provided with a first limiting portion at a top of each of the at least one second accommodation cavity. The handle includes a handle body, at least one connecting portion, and second limiting portions. The second limiting portions are connected with the handle body and/or the at least one connecting portion, the at least one connecting portion is disposed in the at least one second accommodation cavity respectively.