Modular Electromagnetic Contactor With Separable Upper Bodies
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Solution Overview
Problem
The modularization of electronic contactors is hindered by integral main bodies and separate housings, leading to decreased productivity and user convenience due to difficulties in installing movers and the need for separate blocks for auxiliary contact points.
Innovation Solution
The design features separable upper bodies with stationary contacts and phase-to-phase insulating housings, using a male-female coupling structure for assembly and integrating auxiliary contact points within these housings, eliminating the need for auxiliary blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an integral type main body is used to house the electromagnetic part and contact point part, then structural integrity is maintained, but modularization becomes difficult and productivity decreases
Solution Approach 1:
The contactor body is divided into separable upper bodies and a lower body. The upper bodies can be detached from the lower body, enabling modular assembly and disassembly. This segmentation allows for improved productivity through standardized modular components while maintaining structural integrity during operation.
2Adaptability or versatility
If auxiliary contact points are mounted using separate blocks on the main body, then auxiliary functions are added, but assembly efficiency deteriorates and user convenience decreases
Solution Approach 1:
The auxiliary contact points are integrated directly into the upper bodies rather than being mounted on separate blocks. This merging of functions into the main structural components eliminates the need for additional auxiliary blocks, thereby improving assembly efficiency while maintaining the ability to expand auxiliary contact configurations.
3Reliability
If a separate housing is disposed between the main body and cover, then protection is provided, but difficulty in installing the mover within the body increases
Solution Approach 1:
The housing structure is segmented into upper bodies that can be separated from the lower body. This segmentation creates an open assembly path that facilitates easy installation of the mover and other internal components, while the upper bodies provide the necessary protection when assembled in the final configuration.
4Productivity
If the upper bodies are made separable and coupled through male-female coupling structure, then assembly performance is improved, but structural complexity increases
Solution Approach 1:
The upper bodies are designed with male-female coupling structures that enable simple separable assembly. The coupling mechanism uses straightforward geometric interlocking features that minimize complexity while maximizing assembly performance, allowing for easy manufacturing and maintenance.
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 approach enhances assembly performance and user convenience by allowing for improved modularization and expansion of auxiliary contact points, streamlining the assembly process and enhancing user experience.
Implementation Method 1
a magnetic force generator disposed within the lower body and magnetized by electric power transferred from outside to perform suctioning operation
Implementation Method 2
a first resilient member coupled between the bobbin coil and the movable core and applying compressive force
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is an electronic contactor including: a lower body; a magnetic force generator disposed within the lower body and magnetized by electric power transferred from outside to perform suctioning operation; a crossbar coupled to an upper portion of the magnetic force generator and provided with a movable contact to be lifted or lowered; a pair of separable upper bodies each being provided at one side thereof with a stationary contact and an auxiliary stationary contact and respectively coupled to upper opposite ends of the lower body such that the movable contact and auxiliary movable contacts are placed therein, facing ends of the upper bodies being coupled to each other inside the upper bodies so as to face each other; and a cover coupling upper ends of the upper bodies such that an upper end of the crossbar and the movable contact are exposed.