Rotary Connector Guide Portions Prevent Harness Short-Circuiting
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Solution Overview
Problem
Conventional rotary connector devices face issues with short-circuiting between superposed flat harnesses due to excessive contact pressure, leading to potential breakage and incorrect electrical operations.
Innovation Solution
The rotary connector device features guide portions along the outer and inner peripheral walls to independently guide and separate flat harnesses, preventing short-circuiting by spacing damaged areas and maintaining a simplified, space-saving design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple flat harnesses are arranged in a superposed manner to increase the number of connection circuits, then the electrical connectivity is improved, but the risk of short-circuiting increases due to excessive contact pressure causing breakage
Solution Approach 1:
The patent divides the guide wall into multiple independent guide portions, with each guide portion dedicated to guiding a specific flat harness. This segmentation prevents the harnesses from interfering with each other and eliminates the risk of short-circuiting while allowing multiple harnesses to be arranged in a superposed manner, thus increasing the number of connection circuits.
2Ease of operation
If guide walls are used to guide multiple flat harnesses, then the harness arrangement is improved, but the device complexity increases
Solution Approach 1:
The guide wall is segmented into multiple guide portions, where each guide portion corresponds to a specific flat harness. This segmentation provides clear guidance for each harness while maintaining a relatively simple overall structure, as the guide portions are integrated into the existing guide wall rather than requiring separate complex guiding mechanisms for each harness.
Data Source
AI summary
A rotary connector device includes one cover having an outer peripheral wall, the other cover having an inner peripheral wall, and a plurality of flat harnesses which are received in a generally annular shape within a space formed by the two covers, and are rotated and bent in accordance with a rotational motion of one of the two covers. There are provided a plurality of guide portions for guiding the plurality of flat harnesses along the outer peripheral wall and/or the inner peripheral wall independently of each other. The plurality of guide portions are spaced from each other in a harness longitudinal direction. The plurality of guide portions are formed respectively at wall portions, extending respectively in contiguous relation to the outer peripheral wall and the inner peripheral wall in peripheral directions thereof, and regions spaced respectively from the wall portions in directions of extending of the wall portions.