PCB Fixing Structure With Surface-Mounted Quick-Release Clamping
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Solution Overview
Problem
Traditional circuit board fixing methods occupy valuable space and limit flexibility in circuit layout, especially when high system integration and high-speed signals require increased wiring density, as they often necessitate the use of gourd-shaped holes or dual-sided fixation, which restricts the placement of components and circuits.
Innovation Solution
A structural element fixing structure that includes a first fixing element with a shaft and flange, and a second fixing element with a groove and accommodating portion, allowing for a surface-mounted, quick-release mechanism that reduces the space required for fixation, enabling more flexible circuit layout and component placement by fixing the circuit board on one side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fixing methods using screw holes or gourd-shaped holes are used, then the circuit board can be fixed to other structural elements, but the space for circuit layout is reduced and flexibility is limited
Solution Approach 1:
The invention transitions from traditional through-hole fixation (requiring holes penetrating the circuit board) to surface-mounted fixation (attaching the fixing element to the surface of the circuit board). This dimensional change allows the fixing structure to be mounted on the board surface rather than requiring space-consuming holes, thereby preserving circuit layout space while maintaining fixing reliability.
Solution Approach 2:
The fixing element is designed with a nested structure where the second fixing element can be inserted into and clamped onto the first fixing element. The accommodating portion of the second fixing element receives the flange of the first fixing element, creating a compact nested arrangement that reduces overall space requirements while ensuring secure fixation.
2Ease of operation
If gourd-shaped holes are provided for installation and disassembling, then circuit boards can be fixed together, but the opening portions cannot be provided with circuits or parts
Solution Approach 1:
The invention extracts the fixation function from the circuit board itself (by using surface-mounted fixing elements) rather than requiring large gourd-shaped holes to be cut into the board. This extraction allows the previously hole-occupied areas to be reclaimed for circuit and component placement, while the fixation functionality is provided by separate mounting elements attached to the board surface.
3Strength
If dual-sided fixation is used to secure circuit boards, then fixation strength is improved, but the complexity of the fixing structure increases
Solution Approach 1:
The invention merges the fixation functions of multiple components into an integrated assembly. The first fixing element with its flange and the second fixing element with its accommodating portion work together as a unified clamping mechanism, providing strong fixation through their combined action rather than requiring separate dual-sided fixation structures.
Data Source
AI summary
A structural element fixing structure is provided. A flange of a first fixing element is connected with a side surface of a first shaft of the first fixing element. A first structure is fixed on the first fixing element. A second fixing element clamps the flange. An accommodating portion of the second fixing element is connected with a groove portion of the second fixing element. The accommodating portion has an accommodating space configured to accommodate the flange. A second shaft of the second fixing element is connected with the accommodating portion and is on a side of the accommodating portion facing away from the groove portion. A second structure is fixed on the second shaft of the second fixing element. The second fixing element separates the second structure and the first fixing element.