Sliding PCB Mount With Tool-Free Casing Engagement
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Solution Overview
Problem
The installation and removal of detachable circuit board modules in electronic devices require tools, increasing inconvenience for consumers, and vary in screw count and hole positions by specification, complicating operations.
Innovation Solution
A detachably fixing device with a base, circuit board carrying plate, and sliding plate, where the carrying plate slides non-parallel to the base, allowing the engaging portion to protrude and engage with the casing frame, enabling tool-free installation and removal of circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws and tools are used to install circuit board modules, then the connection strength and stability are improved, but the ease of operation and convenience for consumers deteriorate
Solution Approach 1:
The fixing device is segmented into multiple components: a base fixed to the circuit board, a sliding plate with engaging portions, and a carrying plate. This segmentation allows the engaging portions to protrude outward for secure connection while enabling tool-free operation through simple sliding motion for installation and removal.
Solution Approach 2:
The sliding plate is designed to slide relative to the base, transitioning between retracted and protruding positions. This dynamic mechanism allows the engaging portions to extend for secure connection during operation while retracting for easy installation and removal without tools, resolving the contradiction between connection strength and ease of operation.
2Adaptability or versatility
If multiple screws and hole positions are used for different circuit board specifications, then the adaptability is improved, but the device complexity and operation difficulty increase
Solution Approach 1:
The sliding plate with its engaging portions serves multiple functions: it provides secure connection for different circuit board specifications, enables tool-free operation, and simplifies the fixing mechanism to a single sliding component rather than multiple screws at different positions. This universal design accommodates various circuit board types while maintaining simplicity.
Solution Approach 2:
The invention extracts the fastening function from multiple screws and hole positions and consolidates it into a single sliding plate with engaging portions. This extraction simplifies the device by removing the need for multiple fastening points while maintaining adaptability to different circuit board specifications through the sliding mechanism.
Data Source
AI summary
A detachably fixing device includes a base, a circuit board carrying plate, and a sliding plate. The circuit board carrying plate is slidably disposed on the base in a first direction and has a carrying plate linkage portion. The sliding plate is slidably disposed on the base in a second direction. The first direction and the second direction are non-parallel. The sliding plate has a sliding plate linkage portion mechanically connected with the carrying plate linkage portion, and an engaging portion. The circuit board carrying plate is operable to move to make the sliding plate slide outward relative to the base to make the engaging portion protrude from the base. An electronic apparatus casing includes a casing frame and the detachably fixing device. The detachably fixing device is detachably disposed on the casing frame. The engaging portion is separably engaged with an engaging structure of the casing frame.