Exciting Device Terminal Housing Assembly Simplification
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Solution Overview
Problem
Existing electromagnetic connection devices require a complex assembly process for temporarily fixing the extraction ends of the exciting coil to external connecting terminals, leading to low productivity and increased costs.
Innovation Solution
The exciting device features a terminal housing with boss portions and connecting concave portions that allow for easy insertion and soldering of the extraction ends without clamping or hooking, using adhesive and ultrasonic welding for secure fixation, eliminating the need for temporary fixing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the extraction ends are clamped by locking portions and temporarily fixed, then reliable electrical connection is achieved, but assembly process complexity increases and productivity decreases
Solution Approach 1:
The invention extracts the temporary fixing step from the assembly process by designing the terminal housing with built-in positioning structures (protrusions and recesses) that automatically hold the extraction ends in place during soldering, eliminating the need for separate clamping operations
Solution Approach 2:
The invention merges the functions of clamping, positioning, and electrical connection into a single integrated terminal housing structure, where the protrusions and recesses simultaneously provide mechanical constraint and alignment for the extraction ends
2Strength
If multiple fixing pawls and locking portions are used, then mechanical strength is improved, but device complexity increases
Solution Approach 1:
The invention combines multiple fixing functions into a single integrated terminal housing structure with built-in protrusions that perform both positioning and clamping functions, reducing the number of separate components needed
Solution Approach 2:
The terminal housing structure serves multiple functions simultaneously: it provides mechanical strength through its rigid construction, ensures proper positioning via protrusions and recesses, and maintains electrical connection stability, eliminating the need for dedicated separate components for each function
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 simplifies the assembly process, enhances productivity, and reduces costs by eliminating the need for temporary fixing steps, while ensuring reliable electrical and mechanical connections.
Implementation Method 1
an electromagnetic connection device such as an electromagnetic clutch or an electromagnetic brake includes a yoke to guide the magnetic flux of an exciting coil
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A yoke includes an annular groove in which an exciting coil is stored, and a first through hole formed in the bottom of the annular groove. A terminal housing includes a boss portion fitted in the first through hole and a connecting concave portion located on the opposite side of the annular groove with respect to the boss portion. The boss portion includes a second through hole extending in a direction parallel to the center line of the first through hole. An external connecting terminal is buried in the terminal housing. The external includes a coil extraction hole continuing to the second through hole. The extraction end of the exciting coil is soldered to the terminal in a state in which the extraction end is passed through the second through hole and the coil extraction hole.