Control Board Closing Disk Housing Hole for Helium Retention
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Solution Overview
Problem
Current disk devices face challenges in reducing rotational resistance and maintaining airtightness while allowing for efficient communication and power supply, particularly with the use of low-density gases like helium, due to the design limitations of the housing and connector configurations.
Innovation Solution
The implementation of a disk device design where a control board, instead of being solely external, is integrated within the housing to close a through-hole, allowing for reduced size and increased helium retention, with electronic components like CPUs and ICs mounted on this board to assist in data recording and reproduction, and wireless communication capabilities to minimize physical connections and size constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a through-hole is formed in the housing for communication and power supply, then communication and power supply are enabled, but airtightness is compromised and helium leakage occurs
Solution Approach 1:
The connector is nested within the control board structure, with the control board serving as both the sealing element and the mounting platform for the connector. This integration allows the connector to be housed within the board's thickness, eliminating the need for external through-holes while maintaining communication capabilities through the sealed housing.
Solution Approach 2:
The patent merges the sealing function and the communication function into a single integrated structure. The control board simultaneously serves as the seal that maintains airtightness and as the platform that houses the connector for communication, eliminating the trade-off between these two requirements.
2Volume of stationary object
If a control circuit board is located outside the housing and connected by a connector, then communication is enabled, but the device size increases and helium retention is reduced
Solution Approach 1:
The control board is nested within the housing, with the connector embedded in the board. This nested arrangement eliminates external protrusions and reduces the overall device volume while maintaining all necessary functions including communication and sealing.
Solution Approach 2:
The patent combines the control board location from external to internal, merging the functions of sealing, control, and communication into a single integrated internal structure. This eliminates the need for external connectors and reduces the device footprint.
3Device complexity
If electronic components are mounted on an external control board, then control operations are enabled, but the overall device complexity and size increase
Solution Approach 1:
The patent merges the control board with the sealing structure, creating a single component that performs both sealing and control functions. This integration reduces the number of separate parts and simplifies the overall device structure while maintaining all necessary control capabilities.
Solution Approach 2:
The control board is designed to serve multiple functions simultaneously: it acts as the seal for maintaining airtightness, provides the mounting platform for electronic components, and houses the connector for communication. This multi-functionality reduces the need for separate components and simplifies the device structure.
Data Source
AI summary
According to one embodiment, a disk device includes a housing including a hole, a magnetic disk, a control board closing the hole, and an electronic component. The electronic component is mounted on the control board, and assists a control operation for recording and reproducing information on and from the magnetic disk.