Electromagnetic Valve Housing for Easy NO-NC Conversion
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Solution Overview
Problem
Existing electromagnetic valve devices are difficult to convert from normally open (NO) to normally closed (NC) operation, requiring significant modifications to the actuator assembly and involving vulnerable connections that are prone to damage under vibration loads, making flexible adaptation or production conversion challenging and costly.
Innovation Solution
The design incorporates axially flow-conducting channel sections in the valve housing that allow for NC functionality by blocking fluid paths in the de-energized state and opening them upon energization, using a valve slide assembly that is only subjected to thrust forces, eliminating the need for tensile load-bearing connections and allowing for easy conversion between NO and NC modes by replacing the valve housing assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the valve device is designed for normally open operation with a firmly connected valve slide assembly to the armature means, then the connection can withstand tensile loads, but the firm connection (e.g., by gluing) is vulnerable to damage under vibration loads and requires additional connection processes
Solution Approach 1:
The invention extracts the tensile load-bearing function from the connection between the valve slide assembly and the armature means. The valve slide assembly is no longer firmly connected to the armature means but is instead only subjected to thrust forces, eliminating the need for vulnerable tensile load-bearing connections while maintaining operational functionality.
Solution Approach 2:
The invention segments the force transmission paths by introducing a distinct valve housing assembly that provides structural support and guidance for the valve slide assembly. The valve housing bears the tensile loads through its structure rather than through the connection between the valve slide and armature means, separating the functions of force transmission and valve operation.
2Adaptability or versatility
If the valve device is converted from normally open to normally closed operation, then the valve functionality changes, but significant modifications to the actuator assembly are required involving vulnerable connections
Solution Approach 1:
The valve housing assembly is designed as a universal component that can accommodate both normally open and normally closed valve operations. By replacing only the valve housing assembly, the same actuator means can be used for different valve operation modes, eliminating the need for significant modifications to the actuator assembly and reducing device complexity.
Solution Approach 2:
The invention enables dynamic reconfiguration of the valve operation mode by allowing simple replacement of the valve housing assembly. This dynamic adaptability permits the system to switch between normally open and normally closed configurations without permanent modifications, facilitating flexible production conversion and customization.
3Strength
If the valve slide assembly is firmly connected to the armature means, then tensile loads can be withstood, but the connection process (e.g., gluing) is time-consuming and reduces productivity
Solution Approach 1:
The invention removes the requirement for time-consuming connection processes by extracting the tensile load-bearing function from the valve slide assembly connection. The valve slide assembly is designed to be freely movable relative to the armature means, eliminating the need for gluing or other firm connection processes and significantly improving manufacturing efficiency.
Solution Approach 2:
The valve housing assembly acts as an intermediary structure that provides the necessary support and guidance for the valve slide assembly without requiring direct firm connection to the armature means. This intermediary structure enables the valve slide to be easily installed and removed without time-consuming connection processes while maintaining operational integrity.
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 solution enables cost-effective and automated conversion between NO and NC modes with minimal additional effort, reducing manufacturing costs and maintaining the usability of the actuator unit, while avoiding the need for tensile load-bearing connections that are vulnerable to damage.
Implementation Method 1
a stationary coil unit 16... with an electromagnetically generated flux circuit for this armature movement
Implementation Method 2
A compression spring 32 provided in the right-hand end area of the valve slide assembly 28 prestresses the valve slide assembly 28 against the armature means 12, 14
Data Source
Figure 1~4
Figure 5~6
AI summary
The invention relates to an electromagnetic valve device, comprising armature elements (12, 14), which can be moved in an axial direction in response to energization of stationary coil elements (16) in order to actuate a valve slide assembly (28) and which are accommodated together with the coil elements and stationary core elements in an actuator housing (17, 19, 20, 22) preferably as a structural unit and/or module and which assume a pushed-in and/or reacted armature position (Fig. 1) in a deenergized state of the coil elements, wherein, at one axial end, the valve slide assembly (28), which is guided in a valve housing (26), is designed for contacting interaction with the armature elements (14) in a manner not permitting tensile loading and is designed in such a way that a fluid path from a first fluid connection (P) of the valve housing to a second fluid connection (A) of the valve housing can be opened or blocked in accordance with an axial position of the valve slide assembly, wherein the valve housing (26) has at least one axially fluid-conducting channel section (50) on the inside, in particular at an axial end opposite the armature elements, for interaction with the valve slide assembly (28) guided in the valve housing, which channel section is designed in such a way that, in the axial position of the valve slide assembly corresponding to the pushed-in or retracted armature position, the valve slide assembly blocks the fluid path and, in an axial position of the valve slide assembly moved out of the pushed-in or retracted armature position, the valve slide assembly opens the fluid path via the flow-conducting channel section (50).