Connector Guide Transition Hole Enables Blind Mating
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Solution Overview
Problem
Existing connectors for high-speed signal backplanes face reliability issues due to deformation damage of elastic sheets caused by large tolerances between male and female pins, limiting their ability to implement blind-mating and affecting electrical connections.
Innovation Solution
The connector design includes a female pin with a guide transition hole and pin bar extending-out hole that guides the male pin's insertion, reducing elastic sheet damage and enabling blind-mating, while eliminating the need for guide pins or holes on the board, thus improving layout density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional plug-in connector with elastic sheet is used, then electrical connection is achieved, but deformation damage of elastic sheet occurs when tolerance exceeds ±0.1 mm, affecting reliability
Solution Approach 1:
The guide transition hole is designed to preliminarily guide the male pin into the correct position before the elastic sheet engagement. This preliminary guiding action ensures that even when tolerance exceeds ±0.1 mm, the male pin is already aligned properly before contacting the elastic sheet, preventing deformation damage and maintaining connection reliability
Solution Approach 2:
The guide transition hole acts as an intermediary structure between the male pin and the elastic sheet. It mediates the alignment process by providing a transitional path that guides the male pin into correct positioning, thereby protecting the elastic sheet from direct impact of misalignment and preventing deformation
2Ease of operation
If guide pins or guide pin holes are added to improve alignment, then blind-mating capability is enhanced, but layout area of the board increases, reducing layout density
Solution Approach 1:
The guiding function is merged into the existing female pin structure through the guide transition hole and pin bar extending-out hole. Instead of adding separate guide pins or guide holes that would occupy additional board area, the guiding functionality is combined with the connector's existing components, thereby enhancing blind-mating capability without increasing layout area
Solution Approach 2:
The female pin structure is given multiple functions: it serves both as the electrical connection component and as the guiding component through the guide transition hole and pin bar extending-out hole. This multi-functionality eliminates the need for separate guide structures, achieving blind-mating capability while maintaining compact layout
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the reliability of electrical connections by correctly guiding the male pin's insertion, reducing elastic sheet damage and allowing for blind-mating, while increasing layout density by eliminating the need for guide pins or holes on the board.
Implementation Method 1
the male pin is inserted into the female pin, and is in contact with an elastic sheet of the female pin, so as to implement a conductive connection
Data Source
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AI summary
This application relates to the field of IT device technologies, and discloses a connector and an IT device. The connector includes a female pin and a male pin, where the female pin includes a first elastic sheet seat and an elastic sheet, the first elastic sheet seat is provided with a first seat hole, a pin bar extending-out hole, and a guide transition hole communicated with the first seat hole and the pin bar extending-out hole; and the elastic sheet is assembled inside the first seat hole; and the male pin includes a base and a pin bar fastened to the base, where the pin bar includes a large-diameter part and a small-diameter part, the large-diameter part is used to fit a clamping portion of the elastic sheet, and the small-diameter part is used to fit the pin bar extending-out hole. A guide transition hole and a pin bar extending-out hole of a first elastic sheet seat achieve a guiding function for insertion of a pin bar. Even though a tolerance between a male pin and a female pin is relatively large, an insertion direction of the pin bar of the male pin can be correctly guided, thereby reducing damage to an elastic sheet and improving reliability of an electrical connection. Therefore, blind-mating can be implemented. In addition, a guide pin or a guide pin hole does not need to be designed on a board, which reduces a layout area of the board and effectively improves layout density of the board.