Electronic Component Socket Impact Absorbing Ground Contact

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Solution Overview

Problem

Existing sockets for electronic components face challenges in absorbing impact and maintaining shield performance, particularly when heavy components are mounted, as curved contact portions lose elasticity and deteriorate shield performance.

Innovation Solution

A socket design featuring through holes with conductive inner walls and a ground contact unit comprising a holding member, a conductive member with an impact absorbing portion and a ground extension portion that slides on the inner wall, allowing for elastic contact and maintaining electrical connection during impacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the contact portion is formed to be curved to absorb vibration or impact, then the shock resistance is improved, but the shield performance deteriorates because soldering for grounding cannot be performed

Engineering Contradiction:
Improveshock resistanceVSAvoidshield performance
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The contact portion is divided into two functional segments: a curved impact absorbing portion that absorbs vibration and impact, and a separate ground extension portion that maintains electrical connection with the shield body. This segmentation allows each part to perform its specific function without compromising the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The ground extension portion acts as an intermediary element that bridges the curved impact absorbing portion and the shield body. It maintains electrical connection even when the impact absorbing portion deforms, ensuring shield performance is not compromised by the curved structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If soldering is performed on the contact portion for grounding, then the shield performance is improved, but the contact portion loses elasticity and cannot absorb vibration or impact

Engineering Contradiction:
Improveshield performanceVSAvoidelasticity
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The contact portion is divided into two functional segments: a curved impact absorbing portion that absorbs vibration and impact, and a separate ground extension portion that maintains electrical connection with the shield body. This segmentation allows each part to perform its specific function without compromising the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The grounding function is extracted from the impact absorbing portion and transferred to the separate ground extension portion. This allows the impact absorbing portion to remain elastic and curved for shock absorption, while the ground extension portion provides reliable electrical connection for shielding.

Inventive Principle:
Principle #2Taking out (Extraction)

3Strength

If a heavy component is mounted on the socket, then the component connection is improved, but the stress on the soldered portion increases and may cause damage

Engineering Contradiction:
Improvecomponent connectionVSAvoidsoldered portion durability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The curved impact absorbing portion is designed to absorb vibration and impact before they reach the soldered portion. This beforehand cushioning protects the soldered portion from damage caused by heavy components and external shocks.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The ground extension portion acts as an intermediary that maintains electrical connection even when the impact absorbing portion deforms under stress from heavy components, ensuring the soldered portion is protected from excessive stress.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 design effectively absorbs impacts while maintaining shield performance by allowing the impact absorbing portion to bend and the ground extension portion to slide, preventing deformation and maintaining reliable contact.

Implementation Method 1

The conductive member has elasticity, and includes an intermediate portion (3a) that is held by the holding member (2), an upper extension portion (3b) that extends upward from the intermediate portion (3a), and a lower extension portion (3c) that extends downward from the intermediate portion (3a)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

an impact absorbing portion (3f) that is formed between the fixed portion (3e) and the intermediate portion (3a) so as to be curved

Methodology Applied
Scientific EffectImpact absorption through bending: Deformation

Implementation Method 3

a ground extension portion (3d) that comes into elastic contact with the inner wall surface of the through hole (1a) so as to be slidable on the inner wall surface of the through hole (1a)

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9368894B2Socket for electronic components
Publication Date: 2016.06.14 ALPS ALPINE CO LTD
  • US9368894B2 patent drawing
  • US9368894B2 patent drawing
  • US9368894B2 patent drawing

AI summary

A socket for electronic components includes a case that includes through holes of which inner wall surfaces have conductivity, and a ground contact unit that is disposed in one of the through holes and is electrically connected to an inner wall surface of the through hole. The ground contact unit includes a holding member that holds a conductive member and is fixed in the through hole. The conductive member has elasticity, and includes an intermediate portion held by the holding member, an upper extension portion extending upward from the intermediate portion, and a lower extension portion extending downward from the intermediate portion. The lower extension portion includes a ground extension portion that comes into elastic contact with the inner wall surface of the through hole, a fixed portion that is fixed to a substrate, and an impact absorbing portion that is formed between the fixed portion and the intermediate portion.