Disk Device Internal Wireless Communication for Sealing
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Solution Overview
Problem
As disk devices like hard disk drives (HDDs) increase in storage capacity, the number of terminals on connectors grows, compromising the sealing performance of the housing by enlarging the connector, substrate, and through-hole, which can lead to gas leakage and design cost increases.
Innovation Solution
Implementing an internal wireless communication system using light, magnetic, or electric fields to transmit data between the magnetic heads and external components, eliminating the need for traditional electrical connectors and reducing the size and complexity of the relay board and connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of terminals on the connector increases to provide higher storage capacity, then the storage capacity is improved, but the sealing performance of the housing deteriorates due to increased size of connector, substrate, and through-hole
Solution Approach 1:
The patent extracts the communication function from the physical connector and relocates it to a wireless communication device positioned inside the housing. This eliminates the need for through-holes and large connectors, thereby maintaining sealing performance while supporting high storage capacity through increased terminal count on the substrate.
Solution Approach 2:
The patent replaces the mechanical electrical connector system with a wireless communication system using electromagnetic fields. This substitution eliminates physical through-holes and large connector structures, preserving housing sealing while enabling high-capacity data transmission between the substrate and external devices.
2Quantity of substance
If the number of terminals on the connector increases, then the storage capacity is improved, but the size of the connector and substrate increases, leading to higher design cost
Solution Approach 1:
The patent extracts the communication function from the physical connector and relocates it to a wireless communication device positioned inside the housing. This eliminates the need for through-holes and large connectors, thereby maintaining sealing performance while supporting high storage capacity through increased terminal count on the substrate.
Solution Approach 2:
The patent uses wireless electromagnetic field communication to replicate the data transmission function previously performed by physical electrical connectors. This allows high-capacity communication without requiring proportionally larger physical structures, reducing design complexity and cost while maintaining storage capacity.
3Ease of operation
If traditional electrical connectors are used for data transmission, then electrical connection is established, but gas leakage occurs through the through-hole and positioning accuracy deteriorates
Solution Approach 1:
The patent replaces the mechanical electrical connector system with a wireless communication system using electromagnetic fields. This substitution eliminates physical through-holes and large connector structures, preserving housing sealing while enabling high-capacity data transmission between the substrate and external devices.
Solution Approach 2:
The patent introduces a wireless communication device as an intermediary inside the housing to perform data transmission. This intermediary enables electrical connection functionality without requiring physical penetration of the housing, thereby preventing gas leakage while maintaining ease of data transmission operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach prevents gas leakage, maintains positioning accuracy, and reduces design costs by downsizing the relay board and connectors, while offering higher data transfer rates compared to electrical communications.
Implementation Method 1
an internal wireless communication device which generates at least either of: an electric signal representing information to be written to the recording medium by the magnetic head, the electric signal corresponding to light, a magnetic field, or an electric field generated by an external wireless communication device; and light, a magnetic field, or an electric field toward the external wireless communication device, the light, the magnetic field, or the electric field corresponding to an electric signal representing information read from the recording medium by the magnetic head
Data Source
AI summary
According to one embodiment, a disk device includes a housing, recording medium, a magnetic head, an internal wireless communication device, and an internal component. The housing has an internal space. The internal wireless communication device generates at least either of: an electric signal representing information to be written to the recording medium, the electric signal corresponding to light, a magnetic field, or an electric field generated by an external wireless communication device; and light, a magnetic field, or an electric field toward the external wireless communication device, the light, the magnetic field, or the electric field corresponding to an electric signal representing information read from the recording medium. The internal component in the internal space is electrically connected to the magnetic head, the internal component that communicates with an external component located outside the housing through the internal wireless communication device and the external wireless communication device.