Power Transmission Sensor Wiring Between Rotating Elements
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Solution Overview
Problem
Existing power transmission devices face challenges in arranging an oil temperature sensor without increasing the size of the case, as the sensor must be submerged in oil while its connector section remains out of the oil, complicating the layout of the electrical wire routing.
Innovation Solution
The electrical wire is routed to pass between rotating elements and is connected to a connector section at the top of the case, allowing the sensor to be positioned without enlarging the case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the oil temperature sensor is arranged inside the case submerged in oil, then the sensor can detect oil temperature, but the connector section cannot be connected to another terminal without increasing the case size
Solution Approach 1:
The electrical wire is routed vertically through the case along the axis of rotation, utilizing the vertical dimension to connect the sensor at the bottom to the connector section at the top, avoiding the need to expand the horizontal case dimensions
Solution Approach 2:
The connector section is extracted from the oil-submerged region and positioned at the top of the case, separating the electrical connection function from the sensor detection function in space
2Ease of operation
If the electrical wire is routed to connect the sensor to the connector section, then electrical connection is achieved, but the case size increases
Solution Approach 1:
The electrical wire routing utilizes the vertical dimension of the case, passing between rotating elements along the axis of rotation, thereby achieving electrical connection without increasing the horizontal footprint of the case
Data Source
AI summary
A power transmission device includes a power transmission mechanism having a plurality of rotating elements, a case that houses the power transmission mechanism, a sensor disposed at a bottom of the case, and an electrical wire that electrically connects the sensor and a connector section. As viewed from a direction of an axis of rotation of the power transmission mechanism, the electrical wire is routed to pass between the plurality of rotating elements to a top of the case, with the connector section being disposed at the top of the case.