Video Headset Fluid Cooling for Balanced Weight Distribution
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Solution Overview
Problem
Conventional video headsets face issues with excessive heat generation leading to discomfort, hardware damage, and increased weight due to passive and active heat dissipation methods, which are inefficient and uncomfortable for users.
Innovation Solution
A fluid-based cooling system with a closed loop conduit redirects heat from the frontal portion of the headset to a thermal control mechanism at the rear, using a fluid to dissipate heat away from the user's face, reducing the need for passive and active elements in the front and improving weight distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat sinks and fans are added to the XR device to dissipate heat, then heat dissipation effectiveness is improved, but weight increases and user comfort deteriorates
Solution Approach 1:
The patent extracts the heat dissipation function from the XR device by relocating heat sinks and fans to the goggle assembly. The fluid-based cooling system transfers heat from the XR device through conduits to the goggle assembly where dissipation occurs, separating the heat generation location from the heat dissipation location. This resolves the contradiction by maintaining effective heat dissipation while reducing weight in the XR device.
Solution Approach 2:
The patent introduces a fluid-based cooling system as an intermediary between the XR device and the external environment. The fluid circulates through conduits, absorbing heat from the XR device and transporting it to the goggle assembly for dissipation. This intermediary mechanism enables effective heat transfer without requiring heavy dissipation components in the XR device itself.
2Temperature
If heat sinks and fans are added to the XR device to dissipate heat, then heat dissipation effectiveness is improved, but user comfort deteriorates due to heated air contacting the user's forehead
Solution Approach 1:
The patent extracts the heat dissipation location from the XR device and relocates it to the goggle assembly. By positioning heat sinks and fans in the goggle assembly rather than the XR device, the system dissipates heat away from the user's forehead, eliminating the harmful thermal contact while maintaining effective heat dissipation.
Solution Approach 2:
The patent inverts the conventional approach by placing heat dissipation components in the goggle assembly rather than the XR device. This reversal of the heat dissipation location changes the direction of heat flow relative to the user's face, dissipating heat to the environment rather than directing it toward the user's forehead.
3Temperature
If heat dissipation elements are placed in the XR device, then heat dissipation is effective, but weight distribution becomes unbalanced and user comfort decreases
Solution Approach 1:
The patent extracts heat dissipation elements from the XR device and relocates them to the goggle assembly. This redistribution places heavier components in the goggle assembly rather than concentrating weight in the XR device, creating a more balanced weight distribution that improves user comfort and reduces strain on the user's face.
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
The fluid-based cooling system effectively reduces heat dissipation directly from the user's face, minimizing discomfort and weight, while allowing for balanced weight distribution and reduced noise and vibration, enhancing user comfort and headset performance.
Implementation Method 1
a fluid-based cooling system comprising a closed loop conduit through which fluid moves from the XR device in the frontal portion of the harness to a thermal control mechanism in a rear portion of the harness
Implementation Method 2
the thermal control mechanism is secured in the rear portion and configured to dissipate heat transferred from the XR device through the closed loop conduit
Data Source
AI summary
In a video headset, a video display inside an extended reality (XR) device is controlled by electronic circuits that generate heat while executing software applications for displaying content on the video display. The XR device includes heat dissipation technology to dissipate heat generated by the electronic circuits. The video headset includes a fluid-based cooling system comprising a closed loop conduit through which fluid moves from the XR device in the frontal portion of the harness to a thermal control mechanism in a rear portion of the harness, adjacent to the back of a user's head and then back to the XR device. In this regard, heat dissipation elements may be relocated from the XR device to the thermal control mechanism. to redirect heat to the rear portion, shift some of the noise and vibration to the rear portion and improve the weight distribution of the video headset.