Rotating Electric Machine Sensor Lead Wire Guide Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing method for attaching a thermistor sensor to a rotating electric machine is cumbersome and prone to separation due to the need for pressing sensor wiring into a snap piece, which affects workability.
Innovation Solution
A rotating electric machine design that includes a guide mechanism for the lead wire, with multiple bent portions to maintain its state and prevent separation, ensuring secure attachment of the thermistor sensor between coils without additional fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensor wiring is pressed into a snap piece for fixation, then the thermistor sensor can be attached to the rotating electric machine, but the workability deteriorates due to the cumbersome pressing operation and risk of separation
Solution Approach 1:
The invention extracts the snap piece component from the attachment structure and replaces it with a guide mechanism formed by grooves on the stator yoke. This eliminates the need for separate fixation components and complex pressing operations, thereby improving workability while maintaining attachment reliability through the integrated groove structure that guides and secures the lead wire naturally.
2Ease of operation
If the lead wire is drawn out of the stator without guidance, then the sensor element can be inserted between coils, but the lead wire may separate or become misaligned during assembly
Solution Approach 1:
The invention introduces grooves formed on the stator yoke as an intermediary structure between the lead wire and the stator body. These grooves act as a guide mechanism that mediates the positioning of the lead wire during assembly, ensuring stable positioning without requiring additional fixation components. The grooves naturally guide the lead wire into the correct position and maintain its stability throughout the assembly process.
Data Source
AI summary
Workability during attachment of a sensor element to a rotating electric machine is improved. A semiconductor element functioning as a sensor element for detecting temperatures of concentrated winding coils is inserted between two concentrated winding coils adjacent to each other in a plurality of the concentrated winding coils. One end of a lead wire is connected to the semiconductor element, while the other end of the lead wire is drawn out of a stator. The lead wire has a plurality of bent portions. A hook regulates an extending direction of the lead wire drawn out of the stator such that a bent state of the bent portions of the lead wire is maintained.