Electromagnetic Valve Mounting Ring for Secure Vibration Resistance

Solution Overview

Problem

The existing electromagnetic valve units face challenges in ensuring sufficient repulsive force between the housing portion and the shoulder portion, leading to inaccurate attachment and potential detachment during handling or vibration, due to the use of elastic members with either weak or strong clamping forces.

Innovation Solution

An electromagnetic valve unit is designed with an annular elastic member featuring a protruded portion and a deformation portion that is deformable in the axial direction, allowing for secure attachment and preventing detachment by being inserted into a recessed portion of the shoulder portion, ensuring sufficient repulsive force and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the clamping force of the elastic member on the shoulder portion is strengthened, then the attachment accuracy is improved, but the intrinsic stress in the elastic member increases and repulsive force cannot be sufficiently ensured

Engineering Contradiction:

Improveattachment accuracyVSAvoidrepulsive force

Core Design Contradiction:

Manufacturing precisionVSForce

Solution Approach 1:

The elastic member is divided into two functional portions: a first portion that contacts the shoulder portion to provide clamping force for accurate attachment, and a second portion that provides repulsive force to prevent detachment. This segmentation allows each portion to be optimized for its specific function without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the elastic member are given different properties: the first portion has higher clamping force characteristics for secure attachment, while the second portion has higher repulsive force characteristics for preventing detachment. This local differentiation resolves the contradiction by allowing each region to excel at its specific function.

Inventive Principle:

Principle #3Local quality

2Force

If the clamping force of the elastic member on the shoulder portion is weakened, then the intrinsic stress in the elastic member is reduced, but the attachment accuracy deteriorates and detachment may occur during handling or vibration

Engineering Contradiction:

Improveintrinsic stressVSAvoidattachment accuracy

Core Design Contradiction:

ForceVSManufacturing precision

Solution Approach 1:

The elastic member is divided into two functional portions: a first portion that contacts the shoulder portion to provide clamping force for accurate attachment, and a second portion that provides repulsive force to prevent detachment. This segmentation allows each portion to be optimized for its specific function without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the elastic member are given different properties: the first portion has higher clamping force characteristics for secure attachment, while the second portion has higher repulsive force characteristics for preventing detachment. This local differentiation resolves the contradiction by allowing each region to excel at its specific function.

Inventive Principle:

Principle #3Local quality

3Force

If a wave washer with high repulsive force is used, then the repulsive force is sufficient, but the clamping force on the shoulder portion is weak leading to twisting during insertion

Engineering Contradiction:

Improverepulsive forceVSAvoidtwisting stability

Core Design Contradiction:

ForceVSStability of the object's composition

Solution Approach 1:

The elastic member is divided into two functional portions: a first portion that contacts the shoulder portion to provide clamping force for accurate attachment, and a second portion that provides repulsive force to prevent detachment. This segmentation allows each portion to be optimized for its specific function without compromising the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the elastic member are given different properties: the first portion has higher clamping force characteristics for secure attachment, while the second portion has higher repulsive force characteristics for preventing detachment. This local differentiation resolves the contradiction by allowing each region to excel at its specific function.

Inventive Principle:

Principle #3Local quality

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 configuration enables easy and accurate attachment of the electromagnetic valve unit to the housing portion while maintaining sufficient repulsive force, preventing detachment due to vibration or handling, and allowing for compact dimensions and reduced intrinsic stress in the elastic member.

Implementation Method 1

an annular elastic member having an annular deformation portion that is deformable in an axial direction of the electromagnetic valve unit so as not to press the protruded portion in the axial direction

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS12055233B2Electromagnetic valve unit

Publication Date: 2024.08.06 EAGLE INDS

AI summary

An electromagnetic valve unit held so as to be sandwiched between a receiving portion of a housing portion of control equipment and a pressing member includes a shoulder portion to be opposed to the receiving portion of the housing portion and an annular elastic member provided with a protruded portion to be inserted into a recessed portion formed at the shoulder portion. The annular elastic member is further provided with an annular deformation portion that is deformable in the axial direction so as not to press the protruded portion in the axial direction.