Mainboard Mounting Mechanism Tray Sliding Rod Assembly
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Solution Overview
Problem
The existing mainboard mounting mechanisms in electronic devices, such as servers, occupy a large space due to the placement of handles, making it difficult to layout the mainboard effectively.
Innovation Solution
A mainboard mounting mechanism that includes a tray slidably arranged in the chassis box, a positioning post, and a rotatable rod assembly. The rod assembly drives the tray to slide towards the positioning post for disengagement and away from it for engagement, allowing for efficient use of space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two handles are placed on the mainboard for sliding operation, then the sliding operation of the mainboard is facilitated, but a large space on the mainboard is occupied making layout more difficult
Solution Approach 1:
The handle function is extracted from the mainboard and relocated to the tray. The tray includes a handle that extends from its side wall, allowing users to operate the sliding mechanism without occupying space on the mainboard itself. This separation resolves the contradiction by maintaining ease of operation while preserving mainboard layout space.
Solution Approach 2:
The tray serves as an intermediary component between the user and the mainboard. Instead of directly manipulating the mainboard, users interact with the tray's handle, which then drives the sliding motion through the rod assembly. This intermediary approach facilitates operation while keeping the mainboard area clear for component placement.
2Area of moving object
If a rod assembly is used to drive the tray for engagement and disengagement, then the space occupation is reduced, but the device complexity increases
Solution Approach 1:
The rod assembly utilizes dynamic transformation between linear and rotational motion. The rod can rotate relative to the tray, transforming the sliding motion into rotational movement for engagement/disengagement. This dynamic mechanism achieves compact space utilization while maintaining operational simplicity through motion transformation rather than adding complex mechanical components.
Solution Approach 2:
The rod assembly serves multiple functions: it connects the tray to the positioning post, enables both engagement and disengagement operations, and provides structural support. This multi-functionality reduces the need for separate components, thereby limiting space occupation while managing complexity through functional integration.
3Ease of operation
If the tray is made slidable in the accommodating space, then the mainboard can be easily engaged and disengaged, but the stability of the mainboard mounting is reduced
Solution Approach 1:
The positioning post is pre-positioned in the mounting area before the tray arrives. When the tray slides into place, the rod assembly automatically engages with the positioning post, ensuring precise alignment and stable mounting. This preliminary positioning action guarantees stability while maintaining ease of engagement through the sliding mechanism.
Solution Approach 2:
The sliding tray mechanism is self-locking through the rod assembly's interaction with the positioning post. When the tray reaches the engaged position, the rod assembly automatically locks into place without requiring additional fastening actions. This self-service feature provides stable mounting while keeping the engagement process simple and tool-free.
Data Source
AI summary
A mainboard mounting mechanism is provided for use with a chassis box, the chassis box defining an accommodating space, the mainboard mounting mechanism including: a tray; a positioning post, positioned in the mounting area; and a rod assembly, rotatably connected to the tray, wherein the rod assembly drives the tray to slide toward the positioning post so as for the mainboard to be at a disengagement position, and the rod assembly drives the tray to slide away from the positioning post for the mainboard to be at an engagement position.