Integrated Bus Bar Assembly for Rotating Electrical Machine
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Solution Overview
Problem
Conventional controller-included rotating electrical machines have a high number of parts and complex assembly steps due to discrete power supply terminal assemblies and bus bar installations.
Innovation Solution
A controller-included rotating electrical machine design that integrates a power supply terminal-included bus bar assembly with resin-secured bus bars, reducing the number of parts and assembly steps by eliminating the need for additional fasteners and simplifying the connection of bus bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a discrete power supply terminal assembly and separate bus bar installation are used, then reliable electrical connection is achieved, but the number of parts and assembly steps increase
Solution Approach 1:
The patent combines the power supply terminal and bus bars into a single integrated power supply terminal-included bus bar assembly. The bus bars are fixedly retained by a resin member within the assembly, and the power supply terminal is joined to one of the bus bars, creating a unified structure that reduces part count while maintaining reliable electrical connections for the inverter and rectifier circuits
2Ease of manufacture
If multiple separate assemblies are used for power terminals and bus bars, then flexible installation is achieved, but production time increases
Solution Approach 1:
The bus bars are pre-fixed within the power supply terminal-included bus bar assembly using a resin member before final installation. This preliminary fixation of the bus bars to the assembly structure eliminates the need for separate bus bar installation steps during final assembly, reducing production time while maintaining installation flexibility
Data Source
AI summary
A controller-included rotating electrical machine is provided which includes a rotating electrical machine and a controller. The controller 11 is equipped with a power supply terminal-included bus bar assembly and bus bar assemblies. The power supply terminal-included bus bar assembly has bus bars which are fixedly retained by resin and electrically wire a power modules and also includes a power supply terminal connecting with one of the bus bars. Specifically, the power supply terminal is installed in the power supply terminal-included bus bar assembly along with the bus bars, thereby resulting in decreased number of parts and production steps of the controller-included rotating electrical machine as compared with a conventional structure equipped with a power supply terminal and bus bars which are fabricated as assemblies and a power supply terminal installed in another assembly.