Reinforced Board-to-Board Socket for Ultra-Low Height Connectors
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Solution Overview
Problem
Conventional board-to-board connector assemblies are unable to meet the high requirements for structural strength and current transmission capacity, particularly in ultra-low height and high-pitch configurations, which are necessary for modern consumer electronics.
Innovation Solution
A board-to-board socket design that includes a socket body, socket terminals, and a socket reinforcing member. The reinforcing member features a main body part, lateral peripheral wall covering parts, and an elastic arm part with a contact arm and contact convex part, which work together to protect the socket from damage and ensure reliable contact during insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the connector height is reduced to meet ultra-low height requirements (0.6 mm), then the space requirement is improved, but the structural strength deteriorates
Solution Approach 1:
The connector is divided into multiple functional parts: a socket body, a separate reinforcing member, and an elastic arm part. The reinforcing member is inserted into the socket body to provide additional structural support without increasing the overall connector height, thus resolving the contradiction between compact size and structural strength.
Solution Approach 2:
The reinforcing member is nested within the socket body structure. The reinforcing member fits into the socket body's internal cavity, allowing the stronger structure to be contained within the existing external dimensions, maintaining ultra-low height while improving structural strength.
2Area of stationary object
If the pitch between terminals is reduced to 0.25 mm, then the space utilization is improved, but the manufacturing precision requirement worsens
Solution Approach 1:
The elastic arm part is designed with specific local properties including an inclined connecting arm and a contact arm part with a contact convex part. These localized structural features provide natural guidance and positioning during assembly, reducing the need for high manufacturing precision across the entire connector while achieving the required 0.25 mm pitch.
3Power
If the connector is designed for high current transmission capacity, then the current transmission capability is improved, but the device complexity worsens
Solution Approach 1:
The elastic arm part features an asymmetric design with an inclined connecting arm that transitions to a vertically bending contact arm part. This asymmetric structure optimizes the current transmission path and mechanical engagement without requiring additional components, achieving high current capacity while maintaining relatively simple device complexity.
4Reliability
If the elastic arm part is made more robust to prevent damage, then the reliability is improved, but the ease of manufacture worsens
Solution Approach 1:
The elastic arm part is designed as a dynamic component with inherent elasticity, featuring an inclined connecting arm and a contact arm part that can flex during assembly. This dynamic design provides self-protection against damage through elastic deformation while maintaining ease of manufacture through a single-piece stamped construction that integrates the protective functionality into the basic structure.
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
The proposed socket design enhances the structural strength and current transmission capacity of board-to-board connectors, effectively addressing the limitations of conventional designs by providing robust protection and reliable electrical connections in compact, high-density applications.
Implementation Method 1
The elastic arm part includes: an inclined connecting arm formed by bending and extending obliquely downward from the lateral peripheral wall covering parts, a contact arm part formed by bending vertically from the inclined connecting arm
Data Source
AI summary
Provided is a board-to-board socket, comprising a socket body, a socket terminal, and a socket reinforcing member; said socket body comprises a bottom wall, socket side walls formed by protruding upward from two longitudinal ends of the bottom wall, socket guide parts formed at two lateral ends of the socket body, and an island part; the socket guide part comprises a plug guide part receiving cavity, a longitudinal peripheral wall, and a pair of lateral peripheral walls; the socket reinforcing member comprises a main body part covering surface of the longitudinal peripheral wall, lateral peripheral wall covering parts which extend from two longitudinal sides of the main body part in the lateral direction and cover the lateral peripheral walls, a protection part formed by bending and extending inward from top ends of the lateral peripheral wall covering parts, and an elastic arm part continuously extending from the protection part.