IP Library Granted Patent US 6,968,890
Granted Patent B1
US 6,968,890 · App. 10/460,629 · Granted Nov 29, 2005

Heat sink

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Quick Facts
Patent No.
US 6,968,890
App. No.
10/460,629
Granted
Nov 29, 2005
Kind
B1
Abstract

In one exemplary embodiment of the present invention, a heat sink having an embedded heat pipe and fins attached to opposite sides of the base plate. In an alternative embodiment, the base plate includes a main heat pipe and auxiliary heat pipes coupled to the main heat pipe. The fins are aligned with the auxiliary heat pipes.

Claims (20)

1. A heat sink, comprising:

a main heat pipe;

a plurality of auxiliary heat pipes coupled to said main heat pipe;

a wrap-around plate that covers said main heat pipe and said plurality of auxiliary heat pipes; and

a plurality of fins coupled to opposite sides of said wrap-around plate and aligned with said plurality of auxiliary heat pipes, wherein pairs of auxiliary heat pipes disposed near opposite sides of said wrap-around plate are aligned along a length of said main heat pipe.

2. A heat sink, comprising:

a main heat pipe;

a plurality of auxiliary heat pipes coupled to said main heat pipe;

a wrap-around plate that covers said main heat pipe and said plurality of auxiliary heat pipes; and

a plurality of fins coupled to opposite sides of said wrap-around plate and aligned with said plurality of auxiliary heat pipes, wherein pairs of auxiliary heat pipes disposed near opposite sides of said wrap-around plate are aligned along a length of said main heat pipe, and wherein each auxiliary heat pipe has a diameter that is less than a diameter of said main heat pipe.

3. A heat sink, comprising:

a main heat pipe;

a plurality of auxiliary heat pipes coupled to said main heat pipe;

a wrap-around plate that covers said main heat pipe and said plurality of auxiliary heat pipes; and

a plurality of fins coupled to opposite sides of said wrap-around plate and aligned with said plurality of auxiliary heat pipes, wherein pairs of auxiliary heat pipes disposed near opposite sides of said wrap-around plate are aligned along a length of said main heat pipe, and wherein each fin is aligned with each auxiliary heat pipe along a flow length.

4. A heat sink, comprising:

a main heat pipe;

a plurality of auxiliary heat pipes coupled to said main heat pipe;

a wrap-around plate that covers said main heat pipe and said plurality of auxiliary heat pipes; and

a plurality of fins coupled to opposite sides of said wrap-around plate and aligned with said plurality of auxiliary heat pipes, wherein pairs of auxiliary heat pipes disposed near opposite sides of said wrap-around plate are aligned along a length of said main heat pipe and each auxiliary heat pipe has a diameter that is less than a diameter of said main heat pipe, and wherein each auxiliary heat pipe has an end portion that wraps partially around said main heat pipe.

Assignments (2)
CHANGE OF NAME Recorded Oct 1, 2007
From: APPLE COMPUTER, INC.
To: APPLE INC.
Reel/Frame 019943/0173 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2003
From: GHANTIWALA, NAYANA V.
To: APPLE COMPUTER, INC.
Reel/Frame 014181/0378 →