Electromagnet Device Axial Dimension Reduction
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Solution Overview
Problem
In switch devices where the electromagnet device and main circuit contact sections are coaxially arranged, the axial dimension becomes large due to the coaxial arrangement of the main circuit contact sections, insulating rod, driving rod, contact pressure spring, and open spring, leading to increased size.
Innovation Solution
The open spring and electromagnet are arranged in the same axial region, allowing for a shorter axial length by sharing this space, thus reducing the overall size of the switch device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the main circuit contact sections, insulating rod, driving rod, contact pressure spring, open spring, and electromagnet are all coaxially arranged, then the switch device structure is simplified and transfer loss is reduced, but the axial dimension of the switch device becomes large
Solution Approach 1:
The open spring is positioned inside the axial range of the electromagnet, nesting one component within the spatial envelope of another. This allows the open spring to share the axial space occupied by the electromagnet rather than requiring additional axial length, thereby reducing the overall axial dimension while maintaining the coaxial arrangement's structural simplicity
Solution Approach 2:
Instead of arranging components sequentially along the axial direction, the invention repositions the open spring radially inside the electromagnet's axial range. This dimensional reorganization allows components to overlap in axial projection while being separated radially, effectively utilizing three-dimensional space to reduce the axial footprint
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 shortens the combined length of the electromagnet and open spring, resulting in a more compact switch device design while maintaining operational effectiveness.
Implementation Method 1
an electromagnet device (5) which displaces a movable core (20) with respect to a fixed core (19) by energization to an electromagnetic coil (21)
Data Source
AI summary
In a switch device in which the main circuit contact sections of the switch device, an insulating rod, a driving rod, a contact pressure spring, an open spring, and an electromagnet are all coaxially arranged, a problem exists in that the axial dimension of the switch device becomes large. The present invention has been made to solve the aforementioned problem. An object is to obtain an electromagnet device and a switch device using the electromagnet device, in which shortening the axial dimension of the switch device is achieved by arranging the main circuit contact sections of the switch device, the insulating rod, the driving rod, the contact pressure spring, the open spring, and a part of the electromagnet in the same axial range. Particularly, the open spring and the electromagnet are arranged in the same axial region.