Battery Pack Circuit Breaker Cover for Fast Sealed Access
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Solution Overview
Problem
Conventional battery packs require complex structures for protecting safety devices like circuit breakers, which hinder quick access during emergencies, and are prone to ingress of foreign matter such as dust and water which deteriorate battery performance.
Innovation Solution
A battery pack design with a cover member that can be quickly opened and closed, featuring a circuit breaker cover section with spring portions and hooking mechanisms for easy access, and includes sealing members to prevent dust and water ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a complicated cover structure is used to protect the circuit breaker from external environment, then waterproof and dustproof performance is improved, but the time required to access the circuit breaker in emergency situations increases
Solution Approach 1:
The cover member is divided into a first cover portion and a second cover portion that can be selectively opened. The second cover portion specifically covers the circuit breaker and can be quickly opened to expose it, while the first cover portion maintains the overall sealed structure. This segmentation allows rapid access to the circuit breaker without compromising the waterproof and dustproof protection of the entire battery pack.
2Ease of operation
If a simple cover structure is used for quick access, then ease of operation is improved, but protection from external environment deteriorates
Solution Approach 1:
The second cover portion is nested within or integrated with the first cover portion, forming a multi-layer protective structure. The first cover portion provides the primary sealed enclosure, while the second cover portion is positioned to specifically protect the circuit breaker area. This nested configuration allows the simpler second cover to be quickly opened while the first cover maintains environmental protection.
3Strength
If additional tools are required to open the cover, then structural integrity is improved, but ease of operation deteriorates
Solution Approach 1:
The cover member incorporates a manual opening mechanism that allows users to open the second cover portion directly without requiring additional tools. The design includes features such as movable portions or release mechanisms that can be actuated by hand, enabling tool-free access to the circuit breaker while maintaining adequate structural integrity through the overall cover design.
Data Source
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AI summary
A battery pack according to one embodiment of the present disclosure comprises: a battery cell stack in which a plurality of battery cells are stacked; a pack case which includes an opening portion whose at least one surface is opened, and in which the battery cell stack is housed; a circuit breaker(CB) member which is located between the battery cell stack and the opening portion, and is electrically connected to the battery cell stack; and a cover member which covers the opening portion, wherein the cover member includes a through hole through which the circuit breaker member is exposed to the outside, and a circuit breaker cover section that opens and closes the through hole.