Battery Cell Stack Film-Guided Mounting Without Frame Deformation
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Solution Overview
Problem
Existing methods for mounting a battery cell stack to a frame, such as a U-shaped frame, often result in frame deformation or reduced space utilization due to the need for external force application or creation of gaps between the frame and the battery cell stack.
Innovation Solution
An apparatus and method utilizing two films attached to the frame and the battery cell stack, allowing the battery cell stack to be mounted along these films into the frame without deforming the frame, and ensuring optimal space utilization by eliminating gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery cell stack is inserted into the U-shaped frame by applying external force to deform the side cover outward, then the battery cell stack can be mounted to the frame, but the frame may be permanently deformed and distorted
Solution Approach 1:
The patent applies preliminary action by pre-forming grooves in the side covers before assembly. These grooves are created in advance to guide and accommodate the battery cell stack during insertion, eliminating the need to deform the side covers during mounting. This resolves the contradiction by enabling easy mounting through pre-prepared structural features rather than forceful deformation.
2Ease of operation
If a predetermined space is formed between the U-shaped frame and the battery cell stack to facilitate mounting, then the battery cell stack can be easily mounted, but the space utilization of the battery module decreases and the total volume increases
Solution Approach 1:
The grooves are pre-formed in the side covers to match the dimensions of the battery cell stack exactly. This preliminary structuring allows the stack to be inserted directly into the grooves without requiring additional clearance or spacing, achieving both easy mounting and optimal space utilization simultaneously.
Solution Approach 2:
The patent applies local quality by creating grooves with specific dimensions and shapes in particular locations (the side covers) that are tailored to fit the battery cell stack. This localized structural modification enables precise fitting and eliminates the need for overall increases in frame dimensions or clearance spaces.
3Volume of moving object
If the inner length of the U-shaped frame is made identical or extremely similar to the entire length of the battery cell stack to maximize space utilization, then space utilization is high, but the battery cell stack cannot be inserted without deforming the frame
Solution Approach 1:
By pre-forming grooves in the side covers that precisely accommodate the battery cell stack, the patent enables the frame's inner length to be exactly matched to the stack's length without requiring deformation during assembly. The grooves are created in advance to provide the necessary insertion path and structural accommodation.
Data Source
AI summary
An apparatus mounts a battery cell stack to a frame that includes a base cover and a pair of side covers respectively extending from both ends of the base cover. The apparatus includes a support member to support the battery cell stack, and two films, wherein one side of each of the two films is respectively attachable to one of the pair of side covers of the frame, and another side of each of the two films is respectively attachable to one of two side surfaces of the battery cell stack, wherein, when the support member and the frame move toward each other, the two films are movable into the frame, and the battery cell stack is movable along the two films to be mounted to the frame.