Bus Bar Module Ribs Prevent Insulating Cover Displacement
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Solution Overview
Problem
The existing bus bar module designs do not adequately prevent exposure of columnar electrodes and bus bars due to displacement of insulating covers relative to bus bar cases during assembly, which can occur when the lock mechanism is unlocked, leading to potential electrical hazards.
Innovation Solution
The design incorporates a pair of ribs extending from the inner surface of insulating covers, which contact the inner surfaces of bus bar cases, preventing relative displacement and ensuring the lock mechanism remains engaged, thereby preventing exposure of the electrodes and bus bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lock mechanism is used to engage insulating covers with bus bar cases, then the insulating covers can be securely attached, but the engagement may be released due to deformation of connecting members, causing displacement and exposure of electrodes and bus bars
Solution Approach 1:
The patent applies beforehand cushioning by designing the ribs to extend beyond the engagement portion, creating a protective structure that prevents displacement before it can occur. The ribs act as a mechanical stop that limits the maximum displacement of the insulating cover, cushioning against the harmful effect of connecting member deformation and preventing exposure of electrodes and bus bars.
Solution Approach 2:
The patent implements preliminary anti-action by using the ribs to preemptively counteract the displacement force caused by connecting member deformation. The ribs create a preliminary mechanical constraint that opposes the tendency of the insulating cover to displace, thereby preventing the lock mechanism from releasing and avoiding exposure of live components.
2Adaptability or versatility
If insulating covers are connected using flexible connecting members, then assembly flexibility is improved, but deformation of connecting members can cause displacement of insulating covers relative to bus bar cases
Solution Approach 1:
The ribs provide beforehand cushioning by creating a mechanical limit that prevents excessive displacement caused by connecting member deformation. This cushioning effect maintains position stability while allowing the flexible connecting members to provide assembly flexibility, as the ribs only engage when displacement exceeds the safe threshold.
Solution Approach 2:
The patent applies local quality by providing ribs only at specific locations where displacement prevention is most critical. The ribs are positioned to engage with the bus bar case at key points, creating localized constraints that maintain overall position stability without compromising the flexibility provided by the connecting members in other areas.
Data Source
AI summary
A bus bar module includes: a plurality of bus bar cases each housing a bus bar; a first engagement portion provided to one of the plurality of bus bar cases; a first connecting member having flexibility and connecting the plurality of bus bar cases; a plurality of insulating covers covering openings of the plurality of bus bar cases, the insulating covers including a second engagement portion to be engaged with the first engagement portion; a second connecting member having flexibility and connecting the plurality of insulating covers; and a pair of ribs provided to extend downward from an inner surface of each of the insulating covers located adjacent to each other.