Conduction Check Inspection Pin Protection Structure
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Solution Overview
Problem
Conventional conduction check apparatuses face issues with the protection board inclining and experiencing bending forces during connector inspection, leading to potential interference, wear, and deformation of inspection pins.
Innovation Solution
A conduction check apparatus design featuring a protection board that slides along a guide pin, with a U-shaped connector setting part and an urging member to prevent tilting and bending, ensuring smooth advancement and retreatment of the protection board, and utilizing a divided link mechanism to absorb dimensional variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the protection board is used as the adjusting plate to cover inspection pins, then the inspection pins are protected from external interference, but the protection board may incline during connector inspection causing interference, wear, and deformation of inspection pins
Solution Approach 1:
A guide pin is introduced as an intermediary component between the protection board and the inspecting part body. The guide pin penetrates through the protection board and is guided by the inspecting part body, serving as a mediator that constrains the protection board's movement and prevents inclination while maintaining the protective function.
Solution Approach 2:
The guide pin structure creates a guided path that ensures the protection board moves along a predetermined trajectory, maintaining equipotential movement conditions. This prevents the protection board from inclining or deviating during insertion and withdrawal, ensuring stable positioning throughout the operation.
2Force
If the protection board is pushed by compression coil springs supported by protrusions, then the protection board can be urged forward, but bending forces may act upon the protection board causing deformation
Solution Approach 1:
The urging function of the compression coil springs is extracted and applied only to the rear surface of the protection board, separate from the guide pin constraint mechanism. This separation allows the springs to provide urging force without creating bending moments, as the guide pin handles the constraint and positioning functions.
Solution Approach 2:
The protection board's functional requirements are segmented into separate components: the guide pin handles constraint and positioning, while the compression coil springs handle only the urging function. This segmentation allows each component to perform its specific function without interfering with the other, preventing bending forces.
3Device complexity
If the protrusions supporting the compression coil springs are in abutment contact during connector inspection, then the structure is compact, but excessive compressive forces may act on the protection board
Solution Approach 1:
The guide pin acts as an intermediary that absorbs and distributes the compressive forces generated during connector inspection. By providing a guided path, the guide pin prevents the transmission of excessive compressive forces to the protection board, even when the structure is compact with abutment contact between protrusions.
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
Prevents tilting and bending of the protection board, reducing interference and wear on inspection pins, allowing for reliable and smooth conduction inspections without excessive compressive forces.
Implementation Method 1
a compression coil spring which is elastically provided between the front surface and the rear surface of the protection board
Implementation Method 2
a guide pin which penetrates the protection board from the front surface toward the rear surface, and a hole through which the guide pin slides
Data Source
AI summary
A conduction check apparatus including an inspection part (4) having a main body (22) having a surface (23a), inspection pins (21) protruded from the surface (23a), a guide pin (8) provided on the surface (23a); and a protection board 6 sliding along the guide pin (8) from a first position to a second position and having a plurality of holes (28). At the first position, the protection board (6) covers a tip of each of the inspection pins (21) and, at the second position, each of the inspection pins (21) jut out from the respective one of the holes (28). The conduction check apparatus includes a connector setting part (3) relatively moving toward the inspection part (4). The protection board (6) moves between the first and the second position during the relative movement.