Integrated Bus Bar for Motor Switchgear Connection
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Solution Overview
Problem
Existing connecting devices for electric motors to electronic switchgear units require multiple conducting components and complex assembly processes, leading to increased costs and space requirements, while also lacking efficient integration of signal conducting units.
Innovation Solution
A connecting device utilizing a linear bus bar with a bowed first interface for crimping the drive current line and a second interface for a clamping or plug-in connection to the electronic switchgear unit, integrated with a housing element for stabilization and insulation, and optionally incorporating a signal conducting unit, reducing the number of components and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple conducting components (cable lugs, copper terminal blocks, copper bolts) are used to connect electric motor to control unit, then reliable electrical connection is achieved, but device complexity and assembly complexity increase
Solution Approach 1:
The patent combines multiple separate conducting components (cable lugs, terminal blocks, bolts) into a single integrated bus bar structure that performs all connection functions. The bus bar includes integrated connection elements for electrical contact and mechanical fastening, eliminating the need for separate components while maintaining reliable electrical connection.
Solution Approach 2:
The bus bar is designed as a multi-functional component that simultaneously provides electrical conduction, mechanical support, and connection fastening. It includes multiple connection elements that can engage with different types of terminals and housing structures, making it a universal connector that replaces multiple specialized components.
2Reliability
If multiple conducting components and assembly elements are used, then secure electrical connection is achieved, but assembly complexity and production costs increase
Solution Approach 1:
The patent integrates multiple assembly functions into a single bus bar component that can be installed in one operation. The bus bar includes pre-formed connection elements and mounting features that allow simultaneous electrical connection and mechanical fastening, reducing assembly steps and production complexity.
3Reliability
If multiple plugs and seals are used for connection, then reliable electrical and sealing connection is achieved, but space requirements and production costs increase
Solution Approach 1:
The patent integrates sealing functionality directly into the bus bar structure and housing connection elements. The bus bar and housing form an integrated sealed assembly that eliminates the need for separate plugs and seals, reducing space requirements while maintaining sealing reliability.
Data Source
AI summary
A connecting device may electrically connect an electric motor to an electronic switchgear unit. The connecting device may include a bus bar that has a first interface, a second interface, and a linear section therebetween, where the first interface is bowed in a direction at least partially transverse to a longitudinal direction of the linear section of the bus bar. The first interface may be configured to electrically connect to at least one line that conducts a drive current of the electric motor through a crimp connection, and the second interface may be configured to electrically connect to the electronic switchgear unit.