Modular Terminal Block Bus Bar Assembly for Versatile Mounting
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Solution Overview
Problem
Existing terminal block designs lack versatility and suffer from degraded assembling operability due to limited flexibility in accommodating different shapes and configurations, particularly when connecting to complex electric devices like inverters.
Innovation Solution
A terminal block unit featuring a bus bar unit with resin molded portions supporting bus bars in a non-contact state, allowing for easy assembly and replacement, and bolts for secure fastening to terminal metal fittings, enabling flexible configuration and improved handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plurality of second conductive members are configured as one component by using a covering member, then degradation of assembling operability is suppressed, but versatility is limited when the overall shape needs to be different
Solution Approach 1:
The bus bar unit is divided into multiple individual bus bars (first bus bar, second bus bar, etc.) that can be independently configured and assembled. Each bus bar can have different shapes and connection hole positions, allowing versatility while maintaining assembly simplicity through modular construction
Solution Approach 2:
The terminal block unit is designed with universal features including standardized terminal metal fittings, common fastening methods using bolts, and flexible bus bar configurations that can accommodate different connection requirements. The resin molded portion provides universal support for various bus bar arrangements
2Ease of operation
If a resin molded portion is used to integrally support bus bars, then assembling operability is improved, but heat dissipation may be affected
Solution Approach 1:
The resin molded portion provides localized support only where needed for assembly stability, rather than completely enclosing the bus bars. This allows heat dissipation in other areas while maintaining assembling operability through integral support at critical locations
Solution Approach 2:
The resin molded portion acts as an intermediary that facilitates assembly by providing integral support, while the exposed portions of the bus bars maintain direct thermal pathways for heat dissipation. The resin serves as a mediator between assembly requirements and thermal management needs
Data Source
AI summary
A terminal block unit includes a plurality of terminal metal fittings, a terminal block main body configured to hold the plurality of terminal metal fittings, a bas bar unit including a plurality of bus bars each having both end portions in which a first connection hole and a second connection hole to be connected to an electric device are formed, and a plurality of bolts configured to fasten any one of the plurality of bas bars to each of the plurality of terminal metal fittings. The bas bar unit includes a resin molded portion configured to integrally support a part of each of the plurality of bus bars in a non-contact state, and another part of each of the plurality of bus bars at which the resin molded portion is not provided is an exposed portion.