Electromagnetic Valve Unit Elastic Mounting for Secure Attachment
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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 high clamping force.
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
Engineering 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 repulsive force between the housing portion and the shoulder portion cannot be sufficiently ensured
Solution Approach 1:
The elastic member is divided into two functional portions: a first portion that clamps the shoulder portion to ensure attachment accuracy, and a second portion that provides repulsive force against the housing portion. This segmentation allows each portion to be optimized for its specific function without compromising the other.
Solution Approach 2:
Different portions of the elastic member are given different properties: the first portion has high clamping force characteristics to secure the shoulder portion accurately, while the second portion has high elasticity characteristics to provide sufficient repulsive force. This local differentiation resolves the contradiction between attachment accuracy and repulsive force.
2Force
If the clamping force of the elastic member on the shoulder portion is weakened, then the repulsive force is improved, but the electromagnetic valve unit becomes twisted during insertion
Solution Approach 1:
The elastic member is segmented into a first portion for clamping the shoulder portion to prevent twisting during insertion, and a second portion for providing repulsive force. This allows the clamping function to be maintained independently from the repulsive force generation.
Solution Approach 2:
The first portion of the elastic member is designed with high clamping force properties to stabilize the electromagnetic valve unit during insertion and prevent twisting, while the second portion is designed with high elasticity to provide repulsive force. This local quality differentiation resolves the contradiction between stability and repulsive force.
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 a balanced circumferential holding force.
Implementation Method 1
an annular deformation portion that is deformable in the axial direction of the electromagnet valve unit so as not to press the protruded portion in the axial direction
Data Source
AI summary
An electromagnetic valve unit is 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.