M.2 Module Tray for Autonomous Driving Vibration Resistance
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Solution Overview
Problem
M.2 modules in autonomous driving vehicles are prone to damage due to oscillation and vibration during driving, as existing solutions lack effective methods to reduce the probability of such damage.
Innovation Solution
A tray device with a baseboard, guardrails, and a riser member is designed to increase the stiffness of the M.2 module, providing suspension and preventing pressure on underlying components, featuring adhesive strips for stability and allowing the module to extend beyond lateral edges for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the M.2 module is directly attached to the motherboard, then the device structure is simple and easy to manufacture, but the module is easily damaged due to oscillation and vibration during autonomous driving
Solution Approach 1:
The patent introduces a tray device as an intermediary component between the M.2 module and the motherboard. This tray device includes a baseboard with guardrails that retain the M.2 module, and a riser member that elevates the module above the motherboard surface. The tray device absorbs and mitigates the impact of oscillation and vibration, protecting the M.2 module from damage while maintaining a relatively simple overall structure.
Solution Approach 2:
The riser member introduces a vertical dimension (height) to the mounting structure, elevating the M.2 module above the motherboard surface. This dimensional change creates space that prevents direct contact between the module and the motherboard, thereby reducing the impact of vibrations and oscillations during autonomous driving operations.
2Stability of the object's composition
If the M.2 module is securely retained on the motherboard, then the module stability is improved, but the module is more susceptible to damage from oscillation and vibration
Solution Approach 1:
The tray device serves as a mediator that provides both retention and protection. The guardrails on the baseboard securely retain the M.2 module in position, while simultaneously isolating it from the harmful effects of oscillation and vibration through the elevated mounting structure provided by the riser member.
Solution Approach 2:
The tray device structure, particularly the riser member creating elevation space, acts as a form of beforehand cushioning. It prepares the mounting structure in advance to absorb and mitigate the effects of oscillation and vibration before they can transmit damage to the M.2 module during autonomous driving.
3Volume of moving object
If the baseboard is placed directly on the motherboard, then the device structure is compact, but the baseboard applies heavy pressure on electronic components underneath
Solution Approach 1:
The riser member introduces vertical spacing between the baseboard and the motherboard, moving the baseboard away from the motherboard surface in the vertical dimension. This creates elevation that reduces the contact pressure on underlying electronic components while maintaining overall device compactness through optimized space utilization.
4Adaptability or versatility
If the M.2 module is allowed to extend beyond lateral edges for mounting, then the mounting flexibility is improved, but the module becomes more vulnerable to physical impacts
Solution Approach 1:
The tray device with its baseboard and guardrails acts as an intermediary protective structure. It allows the M.2 module to extend beyond the lateral edges of the baseboard for flexible mounting options, while the guardrails and baseboard structure simultaneously protect the module from physical impacts and vibrations during operation.
Data Source
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AI summary
According to some embodiments, before an M.2 compatible module or device is mounted onto a data processing system that operates an autonomous driving vehicle (ADV), the M.2 module is placed onto a tray device to increase the stiffness of the M.2 module. The tray device containing the M.2 module is then mounted on a board or motherboard of the data processing system. Since the M.2 module is placed on the tray device, the overall stiffness has been significantly increased, which can sustain the physical impact on the M.2 module due to the physical movement and oscillation during the autonomous driving of the ADV. In addition, the tray device also provides suspension effect on the M.2 module during the movement of the ADV. As a result, the M.2 module would not easily damaged during the autonomous driving.