Wearable device with heat transfer pathway

Patent metadata

Field	Value
Publication number	US-2025147336-A1
Application number	US-202519012480-A
Country	US
Kind code	A1
Filing date	Jan 7, 2025
Priority date	Feb 29, 2016
Publication date	May 8, 2025
Grant date	—

Abstract

A wearable device is disclosed according to one embodiment. The wearable device can include an eyewear body, onboard electronic components, a thermal coupling and a heat transfer device. The eyewear body can be configured for wearing by a user to hold one or more optical elements mounted on the eyewear body within a field of view of the user. The onboard electronic components can be carried by the eyewear body at a first portion of the eyewear body and can comprise a heat source that generates heat during electrically powered operation thereof. The thermal coupling can be thermally coupled to the heat transfer device at a second portion of the eyewear body. The elongate heat transfer device can be disposed within the eyewear body and can be thermally coupled to the heat source and the thermal coupling. The heat transfer device can extend lengthwise between the heat source and the thermal coupling to transfer heat from the heat source to the thermal coupling.

First claim

What is claimed is:

1 . A wearable device comprising:
an eyewear body configured for wearing by a user to hold one or more optical elements mounted on the eyewear body within a field of view of the user; temples for supporting the eyewear body when worn by the user; onboard electronic components carried by one or both of the eyewear body and at least one of the temples, wherein one or more of the onboard electronic components generates heat during electrically powered operation thereof; an elongate heat transfer device thermally coupled to the one or more of the onboard electronic components to transfer heat away therefrom to another portion of the eyewear body or the at least one of the temples.

2 . The wearable device of claim 1 , wherein the elongate heat transfer device is disposed within the eyewear body, and wherein the elongate heat transfer device is configured to transfer heat from the one or more of the onboard electronic components to an interface with the at least one of the temples.

3 . The wearable device of claim 1 , wherein the onboard electronic components are carried by the eyewear body and the elongate heat transfer device extends longitudinally rearward toward the at least one of the temples.

4 . The wearable device of claim 3 , wherein the elongate heat transfer device extends across a hinge assembly that connects the at least one of the temples to the eyewear body to transfer heat from the eyewear body to the at least one of the temples.

5 . The wearable device of claim 3 , wherein the elongate heat transfer device extends lengthwise across the eyewear body between the one or more of the onboard electronic components and a second end portion of the eyewear body that extends longitudinally rearward to interface with a second elongate temple.

6 . The wearable device of claim 5 , further comprising a first thermal coupling thermally coupled to the elongate heat transfer device at one of a first end portion or a second end portion of the eyewear body, wherein the first thermal coupling comprises one or more of a heat sink, a core wire, and a heat pipe.

7 . The wearable device of claim 5 , wherein the elongate heat transfer device comprises a core wire that forms part of a structural eyewear bodywork for at least part of the eyewear body.

8 . The wearable device of claim 7 , further comprising a second core wire located in at least one of the temples, and wherein the second core wire forms a part of a structural eyewear bodywork of the at least one of the temples.

9 . The wearable device of claim 8 , further comprising a thermal coupling thermally coupled to the second core wire and the core wire and transferring heat from the core wire of the eyewear body to the second core wire of the at least one of the temples.

10 . The wearable device of claim 1 , wherein the elongate heat transfer device comprises a heat pipe having a wick extending along at least a portion of a lateral length thereof, the heat pipe configured to carry a working fluid that is evaporated to a vapor at a first lateral end portion thereof by the heat from the one or more of the onboard electronic components and direct the vapor to a second lateral end portion thereof where the vapor condenses back to the working fluid and is absorbed by the wick.

11 . A pair of smart glasses, the smart glasses comprising:
an eyewear body configured to hold one or more optical elements, the eyewear body having a first lateral portion disposed to a first side of the one or more optical elements and an opposing second lateral portion disposed to a second side of the one or more optical elements; a first temple connected to the eyewear body at the first lateral portion by a first articulated joint; onboard electronic components carried by one or both of the eyewear body and the first temple, wherein one or more of the onboard electronic components generates heat during electrically powered operation thereof; and an elongate heat transfer device thermally coupled to the one or more of the onboard electronic components to transfer heat away therefrom; wherein at least a portion of the heat transferred by the elongate heat transfer device is passed to the first articulated joint.

12 . The smart glasses of claim 11 , wherein at least a portion of the heat transferred by the elongate heat transfer device is passed to one of the first temple or the eyewear body.

13 . The smart glasses of claim 11 , wherein the elongate heat transfer device extends laterally along the eyewear body from the first lateral portion of the eyewear body to a second lateral portion of the eyewear body, wherein the elongate heat transfer device is thermally coupled to the one or more of the onboard electronic components at the first lateral portion and configured to transfer the heat from the one or more of the onboard electronic components to the second lateral portion of the eyewear body.

14 . The smart glasses of claim 11 , further comprising a thermal coupling that comprises at least a first portion of the first articulated joint, the thermal coupling having a second lateral portion that forms a rearward facing portion of the eyewear body arranged to generally interface with a forward facing portion of the first temple when worn by user, wherein the thermal coupling configured to conduct the heat away from the eyewear body across the first articulated joint to the first temple.

15 . The smart glasses of claim 14 , wherein the thermal coupling comprises one or more of a heat sink, a core wire, and a heat pipe.

16 . The smart glasses of claim 14 , further comprising:
a second temple connected to the eyewear body at the second lateral portion by a second articulated joint; and a second thermal coupling comprising least a first portion of the second articulated joint, the second thermal coupling having a second portion carried by the eyewear body and arranged to generally interface an end portion of the second temple, the second thermal coupling configured to conduct the heat away from the elongate heat transfer device across the second articulated joint to the second temple.

17 . The smart glasses of claim 11 , wherein the elongate heat transfer device comprises a core wire configured to form part of a structural eyewear bodywork for at least part of the eyewear body.

18 . The smart glasses of claim 11 , wherein the elongate heat transfer device comprises a heat pipe having a wick extending along at least a portion of a lateral length thereof, the heat pipe configured to carry a working fluid that is evaporated to a vapor at a first lateral end portion thereof by the heat from the one or more of the onboard electronic components and direct the vapor to a second lateral end portion thereof where the vapor condenses back to the working fluid and is absorbed by the wick.

19 . The smart glasses of claim 11 , wherein the one or more of the onboard electronic components are located in the first temple.

20 . The smart glasses of claim 17 , wherein the first temple has a core wire forming part of a structural eyewear bodywork for at least part of the first temple, wherein the core wire comprises a heat sink configured to transfer the heat from the one or more of the onboard electronic components.

Assignees

• Snap Inc

Inventors

• Ashwood Andrea

Classifications

• A45C11/04

  Spectacle cases; Pince-nez cases · CPC title

• G02C5/001 Primary

  specially adapted for particular purposes, not otherwise provided for or not fully classifiable according to technical characteristics, e.g. therapeutic glasses · CPC title

• G02C5/22 Primary

  Hinges (pivotal connection in general F16C11/00) · CPC title

• G02C5/143

  having special ear pieces · CPC title

• H05K7/20445

  the coupling element being an additional piece, e.g. thermal standoff · CPC title