Segmented Electromagnetic Switch Assembly for Reversible Maintenance
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Solution Overview
Problem
The existing electromagnetic switching devices have a high mutual dependence between components, leading to the entire assembly or product being discarded if a malfunction is found, causing delays and inefficiencies in the manufacturing process due to irreversible assembly steps.
Innovation Solution
The electromagnetic switching device is designed with separable components, allowing only the defective part to be exchanged during assembly, featuring a case with a fixed contact point assembly, a coil terminal assembly, and a shaft assembly that can be easily coupled and decoupled, enabling the reuse of other subcomponents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components are completely coupled through irreversible assembly steps (laser welding, epoxy coating), then structural strength and reliability are improved, but the entire assembly must be discarded if a malfunction is found, causing loss of time and resources
Solution Approach 1:
The electromagnetic switching device is divided into independent assemblies (shaft assembly, coil terminal assembly, fixed contact point assembly) that can be separately manufactured and assembled. The shaft assembly with movable core and movable contact point can be detached from the coil terminal assembly, allowing defective components to be replaced without discarding the entire device.
Solution Approach 2:
The design enables recovery of functional components by discarding only the defective part. The separable shaft assembly allows the movable core, movable contact point, and return spring to be recovered and reused in a new assembly, reducing material waste and manufacturing costs.
2Stability of the object's composition
If components are completely coupled through irreversible assembly steps, then structural stability is improved, but production delays occur if a problem is caused in one of the entire processes
Solution Approach 1:
The device is segmented into independently manufacturable assemblies that can be produced in parallel. The shaft assembly can be manufactured separately from the coil terminal assembly, allowing different production lines to work simultaneously without sequential dependencies, thus reducing production delays.
Solution Approach 2:
Assemblies are pre-manufactured and tested independently before final assembly. The shaft assembly can be pre-assembled with the movable core and contact points, and the coil terminal assembly can be prepared separately, allowing quality issues to be detected and resolved before final integration, preventing production delays.
3Manufacturing precision
If irreversible assembly steps (laser welding, epoxy coating) are used to couple components, then manufacturing precision is improved, but the entire assembly must be discarded if a malfunction is found after combining components
Solution Approach 1:
The device is divided into modular assemblies that maintain manufacturing precision through controlled connections. The shaft assembly connects to the coil terminal assembly through a coupling structure that preserves alignment and positioning accuracy while enabling disassembly, thus maintaining both precision and manufacturing flexibility.
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 design allows for the continuous use of other assemblies by exchanging only the defective component, reducing waste and minimizing production delays by enabling reversible assembly and disassembly of the subcomponents.
Implementation Method 1
the electric actuator 30 may include a coil 31 for generating electromagnetic force
Implementation Method 2
a return spring 35 for applying elastic force to the movable core 33
Implementation Method 3
A wipe spring 50, which applies an elastic force to the movable contact point 40
Data Source
Figure 1
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AI summary
Disclosed is an electromagnetic switching device (100). The electromagnetic switching device includes a case (200) defining an outer appearance; a fixed contact point assembly (300) received in the case and including a fixed contact point (320); a coil terminal assembly (500) detachably coupled to one side of the fixed contact point assembly and including a coil (511); and a shaft assembly (400) detachably inserted into the coil terminal assembly, wherein the shaft assembly includes a shaft (410) movable in the coil terminal assembly.