Granted Patent B2

US 12,683,431 · App. 17/998,471 · Granted Jul 14, 2026

Inventors: Mojan Sohi (Redwood City, CA); Veera Venkata Siva Nagesh Polu (Sunnyvale, CA); Igor Markovsky (Campbell, CA)

Assignee: Google LLC

H02J50/005H02J50/70H02J50/80

Abstract

Claims (42)

1 . A mobile computing device, comprising:

one or more processors;

a battery; and

a device enclosure that at least partially encloses the mobile computing device, wherein at least one portion of the device enclosure defines an enclosure wall having a thickness and comprises:

at least one first element defining an exterior surface of the enclosure wall;

at least one insulative element integrated with the at least one first element to form a composite structure, wherein the at least one insulative element includes at least one electrically insulative material; and

a wireless charging module embedded within the at least one insulative element such that the wireless charging module is positioned within the thickness of the enclosure wall, wherein the wireless charging module is configured to inductively couple with an external charging device to induce a current in the wireless charging module, and wherein the current is used to charge the battery of the mobile computing device.

2 . The mobile computing device of claim 1 ,

wherein the at least one portion of the device enclosure is made of a composite resin in which the at least one first element, the at least one insulative element, and the wireless charging module are included, and

wherein the at least one first element includes one or more of at least one conductive element having at least one electrically conductive material, at least one insulative element having at least one electrically insulative material, or any combination thereof.

3 . The mobile computing device of claim 1 , wherein the at least one portion of the device enclosure further comprises:

at least one shielding element that performs electronic shielding for the wireless charging module.

4 . The mobile computing device of claim 3 , wherein the at least one shielding element comprises particles of a shielding material dispersed within the at least one insulative element.

5 . The mobile computing device of claim 3 , wherein the at least one shielding element comprises one or more sheet layers of a shielding material that are positioned adjacent to the wireless charging module.

6 . The mobile computing device of claim 1 , wherein the at least one portion of the device enclosure further comprises:

at least one contact element that is coupled to the wireless charging module, wherein the at least one contact element is configured to electrically couple the wireless charging module to the mobile computing device, wherein at least a portion of the at least one contact element is exposed on an inner surface of the enclosure wall opposite the exterior surface to one or more components located inside of the device enclosure.

7 . The mobile computing device of claim 6 , wherein the composite structure defines a recessed region defined within the thickness of the enclosure wall, and wherein at least a portion of the wireless charging module is exposed on the inner surface of the enclosure wall opposite the exterior surface to the one or more components located inside of the device enclosure.

8 . The mobile computing device of claim 6 , wherein at least a portion of the at least one first element or the at least one insulative element separates the wireless charging module from the inner surface of the enclosure wall.

9 . The mobile computing device of claim 1 , wherein the at least one portion of the device enclosure further comprises:

at least one thermal spreading element that is configured to transfer heat away from the wireless charging module.

10 . The mobile computing device of claim 9 , wherein the at least one thermal spreading element comprises at least a portion of the at least one first element, and wherein the wireless charging module is positioned between the portion of the at least one first element and a portion of the insulative element.

11 . The mobile computing device of claim 1 ,

wherein the at least one insulative element comprises one or more sheet layers of glass fiber having one or more boundaries that overlap or interlock with one or more sheet layers of the at least one first element to form the composite structure, and

wherein at least one of the one or more sheet layers of glass fiber is positioned above the wireless charging module.

12 . The mobile computing device of claim 1 , wherein a portion of the at least one insulative element separates a portion of the wireless charging module from a portion of the at least one first element.

13 . The mobile computing device of claim 1 , wherein the mobile computing device comprises one of a smartphone, a smartwatch, or a wireless headphone unit.

14 . A device enclosure, comprising:

an enclosure wall having a thickness; and

a plurality of portions that at least partially enclose a mobile computing device, wherein at least one portion of the plurality of portions comprises:

at least one first element defining an exterior surface of the enclosure wall;

at least one insulative element integrated with the at least one first element to form a composite structure, wherein the at least one insulative element includes at least one electrically insulative material; and

a wireless charging module embedded within the at least one insulative element such that the wireless charging module is positioned within the thickness of the enclosure wall, wherein the wireless charging module is configured to inductively couple with an external charging device to induce a current in the wireless charging module, and wherein the current is used to charge a battery of the mobile computing device.

15 . The device enclosure of claim 14 ,

wherein the at least one portion of the device enclosure is made of a composite resin in which the at least one first element, the at least one insulative element, and the wireless charging module are included, and

wherein the at least one first element includes one or more of at least one conductive element having at least one electrically conductive material, at least one insulative element having at least one electrically insulative material, or any combination thereof.

16 . The device enclosure of claim 14 , wherein the at least one portion of the device enclosure further comprises:

at least one shielding element that performs electronic shielding for the wireless charging module.

17 . The device enclosure of claim 16 , wherein the at least one shielding element comprises particles of a shielding material dispersed within the at least one insulative element.

18 . The device enclosure of claim 16 , wherein the at least one shielding element comprises one or more sheet layers of a shielding material that are positioned adjacent to the wireless charging module.

19 . The device enclosure of claim 14 , wherein the at least one portion of the device enclosure further comprises:

at least one contact element that is coupled to the wireless charging module, wherein the at least one contact element is configured to electrically couple the wireless charging module to the mobile computing device, wherein at least a portion of the at least one contact element is exposed on an inner surface of the enclosure wall opposite the exterior surface to one or more components located inside of the device enclosure.

20 . The device enclosure of claim 19 , wherein the composite structure defines a recessed region defined within the thickness of the enclosure wall, and wherein at least a portion of the wireless charging module is exposed on the inner surface of the enclosure wall opposite the exterior surface to the one or more components located inside of the device enclosure.

Assignments (1)

Continuity (2)

References Cited (22)