Conductive Module Lid Holding Mechanism for Battery Durability
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Solution Overview
Problem
Conductive modules in vehicles, such as electric automobiles, face durability issues due to repeated opening and closing of the lid body, leading to potential variations in the closed state of the second accommodation chamber, which can result in the second conductive member protruding and compromising the module's functionality.
Innovation Solution
A conductive module design featuring a first and second holding mechanism, which engage with the lid body and hinge body respectively, to maintain the closed position of the second accommodation chamber, ensuring stability even with deterioration of the hinge body over time or due to external factors like vehicle vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a living hinge is used to enable repeated opening and closing of the lid body, then ease of operation is improved, but reliability deteriorates due to durability issues from repeated use and excessive load
Solution Approach 1:
The holding mechanism is divided into multiple components: a holding protrusion on the lid body and a holding groove on the accommodation body. This segmentation allows the holding function to be distributed across separate elements, reducing the stress concentration on the living hinge while maintaining the ability to securely hold the lid body in the closed state.
Solution Approach 2:
The holding protrusion and holding groove act as intermediary elements between the lid body and accommodation body. Instead of relying solely on the living hinge to maintain the closed state, these intermediary features provide an additional mechanical connection that stabilizes the closed position and reduces the burden on the hinge body during repeated operations.
2Device complexity
If only a hinge body is used to connect the lid body to the accommodation body, then device complexity is reduced, but stability of the closed state deteriorates due to variation from durability deterioration
Solution Approach 1:
The connection system is segmented into the hinge body for rotation and the holding protrusion-groove mechanism for stabilization. This segmentation allows each component to perform its specific function: the hinge body enables opening and closing motion while the holding features ensure stable closure, preventing variation even as the hinge deteriorates from repeated use.
Solution Approach 2:
The holding protrusion and holding groove are pre-configured to engage automatically when the lid body reaches the closed position. This preliminary arrangement ensures that the closed state is stabilized in advance, preventing any drift or variation that might occur due to hinge body deterioration from repeated operations or external vibrations.
3Manufacturing precision
If the holding mechanism is arranged on the side opposite to the hinge body, then manufacturing precision is improved, but reliability deteriorates because the closed state varies with hinge body deterioration
Solution Approach 1:
The holding mechanism is positioned in a different spatial dimension relative to the hinge body, specifically on the opposite side. This dimensional arrangement allows the holding protrusion and groove to provide stabilization independent of the hinge body's condition, maintaining consistent closed state positioning even as the hinge deteriorates from repeated use or vibration.
Data Source
AI summary
A conductive module includes a first conductive member electrically connected to at least one electrode terminal of a battery module, a second conductive member electrically connected to the first conductive member and an electrical connection target, and an accommodation member accommodating the first and second conductive members. The accommodation member includes an accommodation body having a first accommodation chamber that accommodates the first conductive member and a second accommodation chamber that accommodates the second conductive member, a lid body closing an opening of the second accommodation chamber such that the second conductive member does not come out of the second accommodation chamber, and a hinge body rotating the lid body, a first holding mechanism holding a side of the lid body opposite to the hinge body at the closing position, and a second holding mechanism holding the hinge body side of the lid body at the closing position.