Manufacturing method of heat conducting device

• US 10,663,231 B2
• Filed: 06/06/2017
• Issued: 05/26/2020
• Est. Priority Date: 06/08/2016
• Status: Active Grant

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: Tan, Li-Kuang, Lin, Shih-Kang
• Primary Examiner(s): Vaughan, Jason L
• Application Number:
  US15/615,140
• Publication Number:
  US 20170356694A1
• Time in Patent Office: 1,085 Days
• CPC Class Codes: B23P 15/26 heat exchangers or the like making heat exchangers by methods covered by other subclasses B21D53/02
• CPC Class Codes: F28D 15/0233 the conduits having a particular shape, e.g. non-circular cross-section, annular F28D15/0241, F28D15/0266 take precedence
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: F28D 15/0275 Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
• CPC Class Codes: F28D 15/046 characterised by the material or the construction of the capillary structure
• CPC Class Codes: H01L 21/4882 Assembly of heatsink parts
• CPC Class Codes: H01L 23/3672 Foil-like cooling fins or heat sinks being part of lead-frames H01L23/49568
• CPC Class Codes: H01L 23/3736 Metallic materials H01L23/3732, H01L23/3733, H01L23/3735, H01L23/3737, H01L23/3738 take precedence
• CPC Class Codes: H01L 23/427 Cooling by change of state, e.g. use of heat pipes by liquefied gas H01L23/445
• CPC Class Codes: Y10T 29/49353 Heat pipe device making
• CPC Class Codes: Y10T 29/49359 Cooling apparatus making, e.g., air conditioner, refrigerator

Abstract

A manufacturing method of a heat conducting device includes following steps: providing a first plate, which includes a plate body and at least a heat conducting element, wherein the plate body has at least an inserting end disposed corresponding to the heat conducting element and defining a tube, and the heat conducting element is mounted at the tube; providing a second plate, which has a first opening end; disposing a first wick structure on an internal wall of the heat conducting element and a bottom surface of the plate body; disposing a second wick structure on an internal wall of the second plate; and connecting the plate body to the first opening end so as to connect the first plate and the second plate to form a chamber. Accordingly, the heat conducting device has a higher heat conducting efficiency.

Claims

1. A manufacturing method of a heat conducting device, comprising steps of:

providing a first plate, wherein the first plate comprises a plate body and at least a heat conducting element, the plate body has at least an inserting end disposed corresponding to the heat conducting element and defining a tube, and the heat conducting element is mounted at the tube;

providing a second plate, wherein the second plate has a first opening end;

providing a mold, wherein a shape of the mold corresponds to a shape of the first plate;

disposing a first wick structure on a surface of the mold;

inserting the mold with the first wick structure to the heat conducting element of the first plate;

disposing the first wick structure on an internal wall of the heat conducting element and a bottom surface of the plate body through the mold; and

removing the mold;

disposing a second wick structure on an internal wall of the second plate; and

connecting the plate body to the first opening end so as to connect the first plate and the second plate to form a chamber.

2. The manufacturing method of claim 1, wherein the heat conducting element is a heat pipe or a temperature plate.

3. The manufacturing method of claim 1, wherein the first plate is integrally formed as one piece.

4. The manufacturing method of claim 1, wherein the heat conducting element has a second opening end, and the manufacturing method further comprises a step of:

inserting the second opening end of the heat conducting element into an inner side of the tube.

5. The manufacturing method of claim 1, wherein the heat conducting element has a second opening end, and the manufacturing method further comprises a step of:

inserting the second opening end of the heat conducting element on an outer side of the tube.

6. The manufacturing method of claim 1, wherein a size of an inner side of the first opening end is substantially the same as a size of the plate body.

7. The manufacturing method of claim 1, wherein thicknesses of the plate body and the first wick structure are substantially the same as a distance between the first opening end and the second wick structure.

8. The manufacturing method of claim 1, wherein the first wick structure is connected to the second wick structure.

9. The manufacturing method of claim 1, wherein before the step of connecting the first plate and the second plate to form the chamber, the manufacturing method further comprises steps of:

providing at least a supporting member; and

disposing the supporting member between the second wick structure of the second plate and the first wick structure of the plate body.

10. The manufacturing method of claim 9, wherein the supporting member has a structure the same as the first wick structure or the second wick structure.

11. The manufacturing method of claim 1, wherein the heat conducting element is connected to the plate body by sintering or welding.

12. The manufacturing method of claim 1, wherein the first plate and the second plate are connected by sintering or welding.

13. The manufacturing method of claim 1, further comprising steps of:

providing a plurality of fins; and

assembling the fins to the heat conducting element.

14. The manufacturing method of claim 1, further comprising steps of:

vacuuming the chamber; and

filling a working fluid in the chamber.