# US 7,464,463 B2 · Method for making a heat dissipating device

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- Number: US 7,464,463 B2
- Document ID: US7464463B2
- Status: Granted
- Kind: B2
- Application number: 11/219,557
- Filed: 2005-09-02
- Published: 2006-09-28
- Granted: 2008-12-16
- Earliest claimed: 2005-03-28
- Assignees: Asia Vital Components Co., Ltd.
- Inventors: Jao-Ching Lin; Pei-Pei Ding; Hsiu-Wei Yang; Wen-Hwa Yu; Yen-Wen Chen
- Web page: https://patentgrep.com/patent/US7464463B2

## CPC

- H10W 40/73: for cooling by change of state
- B23P 15/26: heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)}
- F28D 15/0283: {Means for filling or sealing heat pipes}
- H10W 40/037: {Assembling together parts thereof}
- B23P 2700/10: Heat sinks
- F28D 15/0233: {the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence)}
- F28D 15/046: {characterised by the material or the construction of the capillary structure}
- Y10T 29/49353: Heat pipe device making
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q)
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method for making a heat dissipating device includes the steps of: mounting an elastically deformable member on a container body in such a manner that the elastically deformable member covers a periphery of an opening in the container body and that the elastically deformable member cooperates with the container body to define a cavity in fluid communication with an inner space in the container body through the opening; vacuuming the inner space in such a manner that air in the inner space is drawn through the opening and the cavity to the outside of the container body; filling the inner space with a predetermined amount of a working fluid through the opening and the cavity; and forming a sealing mechanism that functions to isolate the inner space from the opening.

## Claims

### Claim 1

A method for making a heat dissipating device, comprising:
preparing a container body that defines an inner space therein and that is formed with an opening in fluid communication with the inner space, the container body being provided with a wick structure mounted in the inner space;
mounting an elastically deformable member on the container body in such a manner that the elastically deformable member covers a periphery of the opening and that the elastically deformable member cooperates with the container body to define a cavity in fluid communication with the inner space through the opening, wherein the elastically deformable member has a funnel-shaped part that is attached to the container body to form the cavity, and a hollow connecting part that extends from the funnel-shaped part and that is adapted to be connected to a vacuuming device;
vacuuming the inner space in such a manner that air in the inner space is drawn through the opening and the cavity to the outside of the container body and that the elastically deformable member is elastically contracted due to vacuuming of the cavity, thereby forming a sealing effect at a juncture between the elastically deformable member and the periphery of the opening;
filling the inner space with a predetermined amount of a working fluid through the opening and the cavity;
forming a sealing mechanism that functions to isolate the inner space from the opening;
wherein the formation of the sealing mechanism is conducted by pressing a portion of an upper wall of the container body twoard a lower wall of the container body in such a manner that the depressed portion of the upper wall is in sealing contact with the lower wall; and
wherein the pressing of the upper wall of the container body is conducted by a depressing device, the depressing device including opposite upper and lower pressing members, the lower pressing member being disposed to abut against the lower wall of the container body, the upper pressing member having an annular outer part that is disposed to abut against the upper wall of the container body and that defines an accommodating space therein, and an inner tube that is surrounded by the annular outer part and that defines a fluid path therein for fluid communication with the cavity, the elastically deformable member being mounted in the accommodating space in such a manner that the connecting part is securely sleeved on the inner tube and that the funnel-shaped part diverges downwardly from a lower end of the inner tube to cover the periphery of the opening in the container body when the upper pressing member is disposed on the container body.

### Claim 2 (depends on 1)

The method of claim 1, further comprising sealing the opening with a sealing material after forming the depressed portion and removal of the upper pressing member together with the elastically deformable member from the container body.