Support plate thin cladding

Patent metadata

Field	Value
Publication number	US-11898808-B2
Application number	US-201916708159-A
Country	US
Kind code	B2
Filing date	Dec 9, 2019
Priority date	Apr 18, 2019
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

An electronic device can include a housing and a support component joined to the housing. The support component can include a thermal conduction layer defining a first surface and a second surface opposite the first surface. The support component can also include a first support layer overlying the first surface and a second support layer overlying the second surface. A ratio of the thickness of the thermal conduction layer to the combined thickness of the first support layer and the second support layer can be at least 1.5.

First claim

What is claimed is:

1. An electronic device, comprising:
a housing; and
a support component joined to the housing, the support component comprising:
a thermal conduction layer, the thermal conduction layer comprising a first layer of a first thermally conductive material disposed on a first surface of a second thermally conductive material and a second layer of the first thermally conductive material disposed on a second surface of the second thermally conductive material opposite the first layer of the first thermally conductive material, the second thermally conductive material disposed between the first layer and the second layer of the first thermally conductive material, wherein the first layer of the first thermally conductive material and the second layer of the first thermally conductive material are physically coupled via a portion of the first thermally conductive material extending through the second thermally conductive material; and

a support structure joined to at least one surface of the thermal conduction layer;
a ratio of a thickness of the thermal conduction layer to a thickness of the support structure being at least 1.5.

2. The electronic device of claim 1 , wherein:
the thermal conduction layer defines a first surface and a second surface opposite the first surface; and
the support structure comprises a first support layer overlying the first surface and a second support layer overlying the second surface.

3. The electronic device of claim 2 , wherein the first support layer and the second support layer have a same thickness.

4. The electronic device of claim 1 , wherein a thickness of the support component is between 150 microns and 250 microns.

5. The electronic device of claim 1 , wherein:
the thermal conduction layer comprises copper; and
the support structure comprises steel.

6. The electronic device of claim 1 , wherein the support component has a Young's modulus greater than 100 Gigapascals (GPa).

7. The electronic device of claim 1 , wherein the support component is planar.

8. The electronic device of claim 7 , wherein the support component has an in-plane thermal conductivity of greater than 250 watts per meter-kelvin (W/(m·K)).

9. The electronic device of claim 1 , further comprising a fastener welded to the support component with a weld strength of greater than 10 kilogram-force (kgf) in tension.

10. The electronic device of claim 1 , further comprising a fastener welded to the support component with a weld strength of greater than 20 kgf in shear.

Assignees

• Apple Inc

Inventors

• Meyer Robert F
• Counts William A
• Quinones Michael D
• Shannon Jason P
• Pakula David A

Classifications

• F28F21/02 Primary

  of carbon, e.g. graphite · CPC title

• F28F21/081

  Heat exchange elements made from metals or metal alloys · CPC title

• F28F21/085

  from copper or copper alloys · CPC title

• H05K7/20436

  Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing · CPC title

• H05K7/20472

  Sheet interfaces · CPC title