Connector Hooking Structure for Easy Alignment Without Rattling
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Solution Overview
Problem
The existing connector designs face difficulties in attaching the outer conductor and housing due to the need for precise alignment of guide rails, leading to either poor contact or rattling issues.
Innovation Solution
A connector design featuring a hooking portion on the outer conductor and a hooked portion on the housing with a rib-shaped contact surface, allowing for easy attachment while avoiding gaps and excessive contact resistance, and utilizing a protrusion and guide surface for smooth alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the guide rail of the coding housing and the guide rail of the plug body are press-fitted to each other in close contact, then the positional relationship is precisely maintained, but the attachment work becomes significantly difficult
Solution Approach 1:
The guide rail structure is divided into multiple segments: a guide rail on the housing, a guide rail on the outer conductor, and a separate positioning protrusion on the inner conductor. This segmentation allows each component to be attached independently with appropriate tolerances, avoiding the need for strict alignment between all guide rails while maintaining overall positional accuracy through the combined action of these segmented elements.
2Ease of manufacture
If a gap is formed between the guide rails, then the attachment work becomes easier, but the coding housing rattles with respect to the plug body
Solution Approach 1:
A positioning protrusion on the inner conductor acts as an intermediary element that fills the gap between the guide rails. This protrusion engages with a corresponding recess in the housing to provide lateral positioning and prevent rattling, while allowing the guide rails themselves to have manufacturing tolerances and small gaps that facilitate easier attachment.
3Measurement precision
If the guide rails are strictly aligned, then the positional relationship is precise, but the attachment process becomes significantly difficult
Solution Approach 1:
The inner conductor is equipped with a positioning protrusion that preliminarily establishes the correct lateral position before the outer conductor and housing are fully assembled. This preliminary positioning action guides the subsequent attachment process, allowing the guide rails to be attached with normal tolerances without requiring strict alignment, thereby simplifying the overall attachment process while maintaining precision.
Data Source
AI summary
A connector includes an electrically conductive outer conductor 12 surrounding an inner conductor 11 via an insulating inductor 13, and an electrically insulating housing 14 to be coupled to the outer conductor 12. The outer conductor 12 includes a hooking portion 35 at a front end portion thereof, and the housing 14 includes a hooked portion 57 at a rear end portion thereof. A rear surface of the hooking portion 35 opposes a front surface of the hooked portion 57. The rear surface of the hooking portion 35 includes a rib-shaped contact portion 36 that can come into contact with the front surface of the hooked portion 57.