Power supply assembly with fan assembly for electronic device

Patent metadata

Field	Value
Publication number	US-11797065-B2
Application number	US-202017127826-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	May 30, 2017
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

A fan assembly is disclosed. The fan assembly can include a first support frame. The fan assembly can comprise a shaft assembly having a first end coupled with the first support frame and a second end disposed away from the first end. A second support frame can be coupled with the first support frame and disposed at or over the second end of the shaft assembly. An impeller can have fan blades coupled with a hub, the hub being disposed over the shaft assembly for rotation between the first and second support frames about a longitudinal axis. Transverse loading on the shaft assembly can be controlled by the first and second support frames.

First claim

What is claimed is:

1. A wearable electronic device comprising:
a housing configured to be worn by a user, the housing comprising:
a first compartment in which electronic components for operating the wearable electronic device are disposed;
a second compartment in which a battery is disposed, the battery configured to supply power for at least a portion of the wearable electronic device, at least one of the electrical components electrically communicating with another component of the wearable electronic device; and
a connection portion extending between the first and second compartments, the connection portion comprising a channel to provide fluid communication between the first and second compartments,
wherein the first compartment is separated from the second compartment at a location spaced away from the connection portion by a gap to provide thermal separation between the first and second electronic components; and
a thermal mitigation assembly comprising a frame assembly, comprising:
a shaft assembly having a first end and a second end opposite the first end, the first end mechanically supported by a first portion of the frame assembly and a second end mechanically supported by a second portion of the frame assembly,
wherein loading transverse to a longitudinal axis of the shaft assembly is controlled by the frame assembly at the second end of the shaft assembly;
an impeller having fan blades coupled with a hub, the hub coupled with the shaft assembly for rotation within the housing about the longitudinal axis of the shaft assembly; and
wherein the thermal mitigation assembly removes heat generated from one or both of the battery and the electronic components.

2. The wearable electronic device of claim 1 , wherein the electronic components comprise a processor.

3. The wearable electronic device of claim 1 , wherein the first compartment, the second compartment, and the connection portion are filled with a gas.

4. The wearable electronic device of claim 1 , wherein the channel has a side cross-sectional area that is smaller than a cross-sectional area of the first compartment taken along a direction parallel to a maximum dimension of the first compartment.

5. The electronic wearable device of claim 1 , wherein the wearable electronic device comprises an augmented reality device.

6. The wearable electronic device of claim 5 , further comprising a connector configured to connect to a headpiece to be worn by a user.

7. The wearable electronic device of claim 1 , further comprising a clip disposed in the gap between the first and second compartments.

8. The wearable electronic device of claim 1 , wherein the first compartment is provided in a first enclosure of the housing, the second compartment is provided in a second enclosure of the housing, and the first enclosure is supported in a cantilevered manner relative to the second enclosure by the connection portion.

9. The wearable electronic device of claim 1 , wherein the first compartment is provided in a first enclosure of the housing, the second compartment is provided in a second enclosure of the housing, and the first enclosure is connected to the second enclosure solely by the connection portion.

10. The wearable electronic device of claim 1 , wherein the first compartment is provided in a first enclosure of the housing, the second compartment is provided in a second enclosure of the housing, each of the first and second enclosures have a proximal end near the connection portion and a distal end opposite the proximal end, and the distal ends of the first and second enclosures are free ends.

11. The wearable electronic device of claim 1 , wherein the gap extends from an outer periphery of the connection portion radially outward without interruption.

12. The wearable electronic device of claim 1 , wherein the first compartment is provided in a first enclosure of the housing, the second compartment is provided in a second enclosure of the housing, and each of the first and second enclosures are disc-shaped.

13. A portable electronic device comprising:
a housing;
a battery disposed in the housing, the battery configured to supply power for at least a portion of the portable electronic device;
electronic components for operating the portable electronic device, the electronic components disposed in the housing; and
a thermal mitigation assembly comprising a frame assembly, comprising:
a shaft assembly having a first end and a second end opposite the first end, the first end mechanically supported by a first portion of the frame assembly and the second end mechanically supported by a second portion of the frame assembly, wherein loading transverse to a longitudinal axis of the shaft assembly is controlled by the frame assembly at the second end of the shaft assembly;
an impeller having fan blades coupled with a hub, the hub being coupled with the shaft assembly for rotation within the housing about the longitudinal axis of the shaft assembly; and
wherein the thermal mitigation assembly removes heat generated from one or both of the battery and the electronic components.

14. The portable electronic device of claim 13 , wherein the housing comprises a first enclosure and a second enclosure, the electronic components and the thermal mitigation assembly disposed in the first enclosure and the battery disposed in the second enclosure.

15. The portable electronic device of claim 14 , further comprising a connection portion extending between the first and second enclosures, the connection portion comprising a channel to provide fluid communication between the first and second enclosures.

16. The portable electronic device of claim 15 , wherein the first enclosure is separated from the second enclosure at a location spaced away from the connection portion by a gap to provide thermal separation between the battery and the electronic components.

17. The portable electronic device of claim 13 , wherein the shaft assembly comprises a first shaft portion connected to a first frame of the first portion of the frame assembly and a second shaft portion connected to a second frame of the second portion of the frame assembly, the first and second shaft portions disposed at least partially on opposing sides of the hub.

18. The portable electronic device of claim 13 , further comprising a motor configured to impart rotation to the impeller.

19. The portable electronic device of claim 18 , wherein the first portion of the frame assembly comprises the motor.

20. The portable electronic device of claim 13 , wherein the portable electronic device comprises an augmented reality device.

Assignees

• Magic Leap Inc

Inventors

• Aguirre John
• Jin Youlin
• Remsburg Ralph
• Rohena Guillermo Padin
• Rynk Evan Francis
• Pedroza Carlos Julio Suate
• Quartana Jr Gary
• Fraser Bradley
• Awad Haney
• Wheeler William
• Natsume Shigeru

Classifications

• F04D25/062

  Details of the bearings · CPC title

• G06F1/188 Primary

  Mounting of power supply units · CPC title

• F04D25/0613 Primary

  the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator · CPC title

• F04D29/4226

  Fan casings · CPC title

• F04D29/5853

  heat insulation or conduction · CPC title