Electromagnetic Valve Buffering Structure for Return Noise Reduction
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Solution Overview
Problem
The existing electromagnetic valves experience return noise due to collisions between the iron core assembly and the sleeve during operation.
Innovation Solution
The electromagnetic valve incorporates a buffer member and a first spring, where the buffer member is positioned between the sleeve's bottom portion and the first spring, which is located in the hole of the iron core assembly. This configuration allows the iron core assembly to contact the buffer member during upward movement, reducing the collision force and subsequent noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the iron core assembly directly contacts the sleeve bottom portion, then the structure is simple, but return noise is generated due to collision
Solution Approach 1:
The buffer member is introduced as an intermediary component between the iron core assembly and the sleeve bottom portion. This buffer member absorbs the collision impact during the iron core's upward movement, effectively reducing return noise without requiring fundamental structural changes to the electromagnetic valve.
Solution Approach 2:
The buffer member is pre-installed at the bottom portion of the sleeve to provide cushioning in advance. When the iron core assembly moves upward and contacts the buffer member, the pre-positioned buffer absorbs the impact energy, preventing direct collision noise before it can be generated.
2Ease of operation
If the buffer member is fixed by the first spring, then installation is convenient, but the buffer member requires additional components
Solution Approach 1:
The first spring is placed within the hole portion of the iron core assembly, creating a nested structure. The buffer member is then positioned between the spring and the sleeve bottom portion. This nesting arrangement allows the buffer member to be conveniently installed and fixed by the spring without requiring separate mounting structures or modifications to other valve components.
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 introduction of the buffer member and first spring effectively reduces the return noise generated by the electromagnetic valve by damping the collision between the iron core assembly and the sleeve, while also simplifying the installation process without altering the structure of other valve components.
Implementation Method 1
one end of the first spring is in contact with the buffer member... when the electromagnetic valve is deenergized, the iron core assembly may first is in contact with the buffer during upward movement
Implementation Method 2
the buffer member is located between the bottom of the sleeve and the iron core assembly... slowing down the collision between the iron core assembly and the bottom, which is beneficial to reducing the return noise
Data Source
AI summary
Disclosed is an electromagnetic valve, comprising an iron core assembly, a sleeve, a first spring, and a cushioning member. Part of the iron core assembly is located on the inner circumference of the sleeve, the sleeve comprises a bottom, the bottom is located at one end of the sleeve in the axial direction of the sleeve, the iron core assembly comprises a hole portion, the hole portion has a hole, the hole has an opening facing the bottom in the iron core assembly, and at least part of the first spring is located in the hole; in the axial direction of the sleeve, part of the cushioning member is located between the bottom and the first spring, one end of the cushioning member is in contact with the bottom, one end of the first spring is in contact with the cushioning member.