Adjustable PCB Fixing Device with Sliding Holes
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Solution Overview
Problem
Existing PCB fixing devices face challenges in accurately assembling printed circuit boards (PCBs) due to dimensional and positioning errors, particularly when dealing with PCBs of various sizes, leading to time-consuming and difficult adjustments.
Innovation Solution
A PCB fixing device featuring sliding holes and movable fixing members that adjust to fit the edges of the PCB, allowing for precise positioning and easy correction of coupling errors, accommodating different PCB sizes and structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed PCB fixing structure (PEM nut and screw) is used, then the structure is simple and easy to manufacture, but assembly becomes difficult when dimensional or positioning errors occur
Solution Approach 1:
The fixing member is designed with a movable structure that can slide along the sliding hole in the case. This dynamic adjustment capability allows the fixing member to compensate for dimensional and positioning errors between the PCB hole and the case, making assembly easier while maintaining manufacturing simplicity.
2Device complexity
If a fixed PCB fixing structure is used, then the device complexity is low, but adjustment of dimensional or positioning errors is time-consuming and difficult
Solution Approach 1:
The movable fixing member can be quickly adjusted along the sliding hole to accommodate dimensional or positioning errors, significantly reducing the time required for adjustment compared to fixed structures that require complete disassembly and repositioning.
Solution Approach 2:
The sliding hole is pre-formed in the case at a position corresponding to the PCB edge, providing a built-in adjustment mechanism that eliminates the need for time-consuming post-assembly adjustments.
3Device complexity
If a fixed PCB fixing structure is used, then the structure is simple, but adaptability to PCBs of various sizes is poor
Solution Approach 1:
The movable fixing member can be positioned at different locations along the sliding hole to accommodate PCBs of various sizes. This dynamic positioning capability provides adaptability to different PCB dimensions while maintaining a simple overall structure.
Solution Approach 2:
The sliding hole design serves multiple functions: it provides a fixed reference point, enables adjustable positioning for different PCB sizes, and maintains structural simplicity. This multi-functionality achieves versatility without increasing complexity.
Data Source
AI summary
A PCB fixing device includes a case having a plurality of sliding holes spaced apart from each other, and a plurality of fixing members engaged with and movable along the sliding holes, and configured to couple with edges of a PCB to fix the PCB to the case. Accordingly, the position of the PCB fixing device can be adjusted according to the size of the PCB by moving the fixing member along the sliding hole. The PCB fixing device is applicable to PCBs of various sizes and structures, and can reduce loss resulting from a change in the specification of a PCB.