Elastic Deformable Device for Board Vibration Damping

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Solution Overview

Problem

Electronic devices with case-side board holders experience board shaking due to vehicle vibrations, leading to unusual noise generation.

Innovation Solution

Incorporating deformable devices on the board that elastically deform to contact the case or cover, securing the board in a fixed state within the storage space, thereby preventing shaking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the gap of the case-side board holder is formed to be larger than a thickness of a board to ensure insertion, then the board can be held even in the presence of manufacturing variations, but the board may shake due to vehicle vibration to generate an unusual noise

Engineering Contradiction:
Improveadaptability to manufacturing variationsVSAvoidboard shaking and noise generation
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the physical state of the board holder by introducing an elastic deformable portion that can dynamically adjust its shape. This elastic portion deforms elastically in response to board insertion and vibration, changing from a rigid structure to a flexible one that maintains contact with the board, thereby preventing board shaking and noise generation while accommodating manufacturing variations

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention makes the board holder dynamic by incorporating an elastic deformable portion that can change its shape in response to external forces. The elastic portion deforms during board insertion and continues to deform elastically under vehicle vibration, maintaining adaptive contact with the board to prevent shaking, thus transforming a static rigid structure into a dynamic flexible one

Inventive Principle:
Principle #15Dynamics

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 deformable devices effectively stabilize the board, eliminating unusual noise caused by vibrations and ensuring efficient assembly and stable holding during operation.

Implementation Method 1

The board has at least one deformable device formed on an end side of the board and configured to be elastically deformable in a direction orthogonal to the mounting surface

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

the deformable device comes into contact with the case or the cover in a state of being elastically deformed to hold the board in a fixed state

Methodology Applied
Scientific EffectElastic contact force: Elasticity

Data Source

PatentUS11051420B1Electronic device
Publication Date: 2021.06.29 SHINDENGEN ELECTRIC MANUFACTURING CO LTD
  • US11051420B1 patent drawing
  • US11051420B1 patent drawing
  • US11051420B1 patent drawing

AI summary

An electronic device includes a board having a mounting surface for an electronic component, a case having an opening for insertion of the board into the case and configured to house the board inserted through the opening, and a cover fixed to the case so as to close the opening. The board also has at least one deformable device formed on an end side of the board and configured to be elastically deformable in a direction orthogonal to the mounting surface. The deformable device comes into contact with the case or the cover in a state of being elastically deformed to hold the board in a fixed state in a storage space formed through fixation of the cover to the case when the board is housed in the storage space.