Electromagnet Coil Terminal Folding for Wire Tying
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electromagnet devices face difficulties in easily tying up lead wires due to close proximity of adjacent coil terminals, which limits the enlargement of tying-up portions and complicates the tying process.
Innovation Solution
The electromagnet device incorporates a spool with a guard portion, where the coil is wound, and a coil terminal is press-fitted into the guard portion, allowing the lead wire to be tied up to a projecting tying-up portion that can be folded towards the guard portion, enabling easier tying and eliminating dead space, with features like inclined surfaces and detour projections to prevent disconnection and enhance yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If coil terminals are arranged in parallel close to each other to reduce device size, then space efficiency is improved, but the tying-up portion cannot be enlarged making wire tying difficult
Solution Approach 1:
The coil terminal is divided into multiple functional portions: a pressing portion for securing the terminal, a tying-up portion for wire attachment, and a folded portion for space optimization. This segmentation allows each portion to perform its specific function optimally while maintaining compact overall dimensions.
Solution Approach 2:
The coil terminal utilizes three-dimensional space by folding the folded portion toward the spool, transforming a linear arrangement into a compact spatial configuration. This allows the tying-up portion to extend in one direction while the folded portion occupies space in another direction, achieving both compactness and operability.
2Productivity
If coil terminals are arranged close together, then space efficiency is improved, but dead space is created and wire tying becomes complicated
Solution Approach 1:
The tying-up portion is designed to extend in a predetermined direction from the pressing portion, allowing the wire tying operation to be performed easily in advance before the folded portion is bent toward the spool. This preliminary configuration simplifies the tying process while maintaining high space efficiency.
Solution Approach 2:
The coil terminal structure transitions from an extended configuration during wire tying to a folded configuration for final assembly. The folded portion can be bent toward the spool after the tying operation, dynamically adapting the structure to different operational stages and reducing dead space.
3Ease of operation
If the tying-up portion is extended to facilitate wire tying, then ease of operation is improved, but device volume increases
Solution Approach 1:
The folded portion of the coil terminal is nested toward the spool body, allowing the terminal structure to occupy minimal external volume while maintaining the necessary extending tying-up portion for wire attachment. This nesting configuration reduces device volume while preserving operational ease.
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
One aspect of the present invention provides an electromagnet device in which work to tie up a lead wire of a coil is easily performed even if adjacent coil terminals are close to each other. The electromagnet device includes: spool 21 including guard portion 23 at at least one end, coil 30 being wound around body portion 24 of spool 21; and coil terminal 33 press-fitted in guard portion 23. A lead wire of coil 30 is tied up to tying-up portion 33b of coil terminal 33 projected from guard portion 23. Tying-up portion 33b is folded toward guard portion 23 of spool 21 after the lead wire of coil 30 is tied up to tying-up portion 33b of coil terminal 33 extending in a direction receding from spool 21.