Head-Mounted Display Battery Assembly Integrated Into Guide Rails
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Solution Overview
Problem
Head-mounted displays face challenges in achieving suitable battery life while maintaining a small form factor, functionality, and user comfort, necessitating improved power source options.
Innovation Solution
Integrating batteries into structural components like guide rails for optical modules, which serve as both mechanical and thermal enclosures, reducing weight and complexity while providing power for peak loads and extended use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a larger battery is used to extend battery life, then power capacity increases, but device weight and volume increase
Solution Approach 1:
The battery is integrated into the guide rail structure, merging two previously separate components (battery and guide rail) into a single unified structure. This eliminates the need for a separate battery housing, reducing overall device volume and weight while maintaining adequate power capacity for extended operation
Solution Approach 2:
The guide rail structure serves dual functions: it provides mechanical guidance for the optical module and simultaneously houses the battery for power supply. This multi-functionality reduces the number of separate components needed, thereby reducing overall device weight and volume
2Duration of action of moving object
If a larger battery is used to extend battery life, then power capacity increases, but device volume increases
Solution Approach 1:
The battery is integrated into the guide rail structure, merging two previously separate components (battery and guide rail) into a single unified structure. This eliminates the need for a separate battery housing, reducing overall device volume while maintaining adequate power capacity for extended operation
Solution Approach 2:
The battery is nested within the hollow interior cavity of the guide rail structure, utilizing the existing structural space for dual purposes. This nesting approach allows the battery to be accommodated without increasing the external dimensions of the device
3Duration of action of moving object
If more battery components are added, then power capacity increases, but device complexity increases
Solution Approach 1:
The battery is integrated into the guide rail structure, merging two previously separate components (battery and guide rail) into a single unified structure. This reduces the total number of components and assembly steps, thereby reducing device complexity while maintaining adequate power capacity
Solution Approach 2:
The guide rail structure serves dual functions: it provides mechanical guidance for the optical module and simultaneously houses the battery for power supply. This multi-functionality reduces the number of separate components needed, simplifying the overall device architecture
Data Source
AI summary
A head-mountable device can include an optical module to present visual information to a user, a structure movably attached to the optical module, the structure defining a motion path of the optical module. The structure can include a housing defining an internal volume, and a battery disposed within the internal volume.