Connection Module Wire Fixing Reinforcement
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Solution Overview
Problem
Existing bus bar module designs are prone to damage from external forces due to flexural deformation and have reduced rigidity, especially when wires are drawn out, as they are only supported at one end and often feature cutouts or holes that compromise their structural integrity.
Innovation Solution
A connection module with a wire fixing portion that includes an extension portion and a reinforcing portion continuous with the protector body, providing additional support and rigidity by branching reinforcing portions from the extension end, and utilizing a binding member through strategically sized insertion holes for secure wire bundling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the wire fixing portion is supported at only one end and extends from an end portion of the housing member, then the structure is simplified and easier to manufacture, but the wire fixing portion may be damaged due to flexural deformation when external force is applied to the drawn-out wires
Solution Approach 1:
The patent transitions from a one-end supported wire fixing portion to a structure where the wire fixing portion is supported at both ends by extending it through the housing member. This dimensional change in support configuration resolves the contradiction by providing structural strength while maintaining manufacturing simplicity through the through-hole design.
Solution Approach 2:
The patent employs a composite structure where the wire fixing portion integrates the housing member material with reinforced sections. The through-hole configuration creates a composite support system that combines the housing structure with the wire fixing portion, enhancing strength without significantly complicating manufacturing.
2Reliability
If a cutout or hole is provided for wrapping a binding band, then the wire bundle can be securely fixed, but the configuration further reduces rigidity of the wire fixing portion
Solution Approach 1:
The patent segments the wire fixing portion into distinct functional zones: a through-hole section for structural support and rigidity, and a designated wrapping section with cutouts for binding band attachment. This segmentation allows the structure to maintain overall rigidity while providing localized flexibility for wire securing.
Solution Approach 2:
The patent applies local quality by providing cutouts or holes only in specific regions of the wire fixing portion where binding bands need to be wrapped, while maintaining solid, rigid structure in other areas. This localized modification ensures wire security without compromising the overall rigidity of the wire fixing portion.
3Ease of operation
If the extension portion is made longer to facilitate wire drawing, then wire installation becomes easier, but the extension portion becomes more susceptible to external forces and potential damage
Solution Approach 1:
The patent resolves this contradiction by changing the support configuration from one-end to two-end support through the through-hole design. This allows the extension portion to maintain adequate length for easy wire installation while the second support point prevents excessive movement and reduces susceptibility to external forces.
Solution Approach 2:
The patent introduces the housing member's through-hole structure as an intermediary support element. This intermediary provides additional support to the wire fixing portion, enabling it to extend sufficiently for easy wire installation while protecting it from external forces through the dual support configuration.
Data Source
AI summary
A connection module to be attached to a power storage element group having a plurality of power storage elements includes a plurality of bus bars each connecting electrode terminals of adjacent power storage elements, a wire bundle that is a bundle of wires for transmitting information, and an insulating protector that holds the plurality of bus bars. The insulating protector includes a protector body that insulates the bus bars from each other and a wire fixing portion provided at a position of the protector body at which the wires are drawn out, and the wire fixing portion includes an extension portion to which the wire bundle is to be fixed and that extends from an end portion of the protector body in a direction in which the wire bundle is drawn out, and a reinforcing portion that is continuous with the extension portion and the protector body.