Battery Duct Holding Structure Using Busbar Lock Mechanism
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Solution Overview
Problem
The existing duct holding structure for battery assembly bodies is complex, increases component size, and is prone to deformation due to high-temperature gas discharge, leading to gas leakage.
Innovation Solution
A duct holding structure that utilizes a lock mechanism between the insulating resin duct and the busbar module, eliminating the need for additional components and enhancing the holding force, preventing deformation by direct locking and efficient space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a cover member is used to hold the duct, then the duct deformation can be suppressed, but the component size and complexity increase
Solution Approach 1:
The busbar module is designed to integrate both the busbar holding function and the duct holding function. The side walls of the busbar module directly engage with the duct through locking structures, eliminating the need for a separate cover member. This merging of functions reduces component complexity while maintaining duct stability and preventing deformation.
2Stability of the object's composition
If a cover member is used to hold the duct, then the duct deformation can be suppressed, but the attachment ease is lowered
Solution Approach 1:
The busbar module integrates duct holding functionality into its side walls, which already attach to the battery assembly body. The locking structures (protrusions and recesses) enable direct attachment of the duct to the busbar module, simplifying the attachment process compared to using a separate cover member that would require additional mounting steps.
Data Source
AI summary
A duct holding structure includes insulating resin busbar modules (11a, 11b) which are attached to a battery assembly body (2) in which plural batteries (1) are arranged and connected to each other in series, and hold busbars (9) each of which connects electrodes of adjoining ones of the batteries (1); and an insulating resin duct (3) which is attached to the battery assembly body (2) while covering gas vents that are formed through an electrode surface (6) from which the electrodes of the batteries (1) project. The duct (3) and the busbar modules (11a, 11b) are provided with lock mechanisms (23) which lock the busbar modules (11a, 11b) on the duct (3).