Intel Corporation

Microsoft Technology Licensing, LLC

Gavin Donald Stanley

Michael T Crocker

Douglas Lea Heirich

Sridhar Canumalla

Tzu-Yuan Lin

Brian Joseph Toleno

Sravan Kuman Reddy Gondipalli

Daniel P Carter

Alfonsus Dibianto Lunardhi

Kazimierz L Kozyra

John Michael Link

Sravan Kumar Reddy Gondipalli

Examples are disclosed that relate to methods, computing devices, and head-mounted display (HMD) devices for regulating a surface temperature of a device. In one example, a method comprises determining the surface temperature of a surface of the device, determining an energy accumulator value indicating cumulative energy received by a user via the surface of the device, and using a dynamic temperature limit function to calculate a temperature limit as a function of the energy accumulator value. The method also comprises comparing the surface temperature to the temperature limit. When the surface temperature has not reached the temperature limit, the method comprises incrementing the energy accumulator value. When the surface temperature has reached the temperature limit, the method comprises initiating a thermal mitigation action to cool the surface.

Regulating device surface temperature

A system for increasing the temperature of a display element includes a heat source configured to perform a user experience function independent of generating heat. The system also includes a thermally conductive element that is coupled to the heat source and is positioned proximate to the display element, forming a thermally conductive path between the heat source and the display element. A method for increasing the temperature of a display element includes generating heat by operating a heat source to perform a user experience function independent of generating heat, and dispersing the heat from the heat source to the display element via a thermally conductive path formed by a thermally conductive element coupled to the heat source and positioned proximate to the display element.

Anti-fogging HMD utilizing device waste heat

Techniques disclosed herein relate to using thermally conductive textiles for heat dissipation from wearable electronic devices. An exemplary thermally conductive textile may be constructed from an elasticated band for encircling a body part of a user (e.g., a user's head) and one or more thermally conductive wires that are affixed to the elasticated band in a wave pattern. The thermally conductive wires being arranged in the wave pattern allows for the thermally conductive wires to freely stretch and contract as forces are exerted on the elasticated band. Thus, the thermally conductive textile described herein exhibit elastic properties that are predominantly governed by the elasticated band while also exhibiting thermal properties that are predominantly governed by the thermally conductive wires. The thermally conductive textiles may also include locking fibers to restrict deformation of the wave pattern of the thermally conductive wires.

Thermally conductive textiles for heat dissipation from wearable electronic devices

Devices having multiple layers of paint for enhanced thermal performance. Individual paint-layers have specific properties within specific wavelength-ranges. An exemplary device includes an emissive outer layer that has a high emissivity in a first wavelength-range to increase thermal radiation and a high transmittance in a second wavelength-range to reduce solar gain. Underneath the emissive outer layer is a color matching layer that has a high transmittance in the second wavelength-range and absorbs at least some visible light. Underneath the color matching layer is a reflective sublayer that has a high reflectivity in the second wavelength-range. EM radiation within the second wavelength-range passes through the emissive outer layer and color matching layer before being reflected by the reflective sublayer back into the atmosphere. Thus, solar gain is reduced due to the solar energy within the second wavelength range being reflected off of the device&#x2014;rather than absorbed as thermal energy.

Wearable electronic devices having multiple layers of electromagnetic spectrum specific paint for enhanced thermal performance

Techniques disclosed herein relate to exploiting photovoltaic effects to improve the thermal management capabilities for wearable electronic devices. In an exemplary embodiment, a wearable electronic device includes photovoltaic cells disposed over a housing assembly that encloses heat-emitting electronic components. The photovoltaic cells block solar radiation from reaching an exterior surface of the housing assembly&#x2014;thereby reducing the solar gain thereof. Electrical energy that is generated by the photovoltaic cells is utilized in some manner that is determined to be currently appropriate based on various current-state factors of the wearable electronic device. For example, the wearable electronic device may include a thermal management engine that modulates the flow of current from the photovoltaic cells based on a current power demand of the wearable electronic device, a current charge level of a battery of the wearable electronic device, and/or a current temperature at one or more sensors of the wearable electronic device.

Photovoltaic powered thermal management for wearable electronic devices

A heat dissipation device is provided. The heat dissipation device includes an integrated heat spreader and a base plate coupled to the integrated heat spreader, wherein the base plate comprises a plurality of metal pellets to dissipate heat from the integrated heat spreader.

Metal injection molded heat dissipation device

According to some embodiments, a method and system are provided to receive an airflow at a blower fan via an axial fan, and expel the airflow via a blower fan. The blower fan comprises a hub associated with an axis of rotation, and the axial fan comprises the hub.

Blower fan for low profile environment

A heat dissipation device is provided. The heat dissipation device includes an integrated heat spreader and a base plate coupled to the integrated heat spreader, wherein tile base plate comprises a plurality of metal pellets to dissipate heat from the integrated heat spreader.

According to some embodiments, an apparatus may comprise a cold plate comprising a plurality of fins and an impeller comprising a plurality of blades. An output fluid velocity angle defined by the plurality of fins may be aligned to an impeller inlet velocity angle. The impeller inlet velocity angle may be based on an operational speed of the plurality of blades and an angle of the plurality of blades with respect to a center of the impeller.

Growing community of inventors

Puyallup, WA, United States of America

Gavin Donald Stanley