Manufacturing method of vapor chamber

Patent metadata

Field	Value
Publication number	US-10112272-B2
Application number	US-201615052880-A
Country	US
Kind code	B2
Filing date	Feb 25, 2016
Priority date	Feb 25, 2016
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A manufacturing method of vapor chamber includes steps of: providing a first board body and a second board body; using mechanical processing to form a hooked section structure on one face of the first board body; using mechanical processing to form a hook section structure on one face of the second board body; and correspondingly mating the first and second board bodies with each other to make the hook section and the hooked section contact and hook and connect with each other and sealing the periphery of the first and second board bodies and vacuuming the first and second board bodies and filling therein a working fluid. According to the manufacturing method, the vapor chamber is manufactured without any additional support structure, but is still free from the problem of thermal expansion. Also, the vapor chamber can be thinned and lightweight.

First claim

What is claimed is:

1. A manufacturing method of vapor chamber, comprising steps of:
providing a first board body and a second board body;
using mechanical processing to form a hooked section structure on one face of the first board body, the hooked section structure being defined as a capillary structure layer;
using mechanical processing to form a hook section structure as a support structure on one face of the second board body; and
correspondingly mating the first and second board bodies with each other to form a chamber, and make the hook section and the hooked section contact and hook and connect with each other and sealing the periphery of the first and second board bodies and vacuuming the first and second board bodies and filling therein a working fluid, so as to form a vapor chamber with a vacuum chamber and sealed periphery, such that the hook section contacts, hooks and connects with the hooked section to provide a drag effect for the first and second board bodies to avoid a thermal expansion problem taking place when the vapor chamber is heated.

2. The manufacturing method of vapor chamber as claimed in claim 1 , wherein the mechanical processing is selected from a group consisting of planing/milling processing, embossing processing, shoveling/filing processing and laser processing.

3. The manufacturing method of vapor chamber as claimed in claim 1 , wherein the hooked section is composed of multiple loop bodies.

4. A manufacturing method of vapor chamber, comprising steps of:
providing a first hoard body and a second hoard body;
pre-making a hooked section structure and a hook section structure, the hooked section structure being defined as a capillary structure layer, the hook section structure defined as a support structure;
respectively attaching the hooked section structure and the hook section structure to one face of the first board body and one face of the second hoard body and overlaying the hooked section structure and the hook section structure on the first board body and the second board body; and
correspondingly mating the first and second board bodies with each other to form a chamber, and make the hook section and the hooked section contact and hook and connect with each other and sealing the periphery of the first and second board bodies and vacuuming the first and second board bodies and filling therein a working fluid, so as to form a vapor chamber with a vacuum chamber and sealed periphery, such that the hook section contacts, hooks and connects with the hooked section to provide a drag effect for the first and second board bodies to avoid a thermal expansion problem taking place when the vapor chamber is heated.

5. The manufacturing method of vapor chamber as claimed in claim 4 , wherein the attachment manner is selected from a group consisting of welding, diffusion bonding, adhesion, ultrasonic bonding, gluing and lamination.

6. The manufacturing method of vapor chamber as claimed in claim 4 , wherein the hooked section structure is composed of multiple loop bodies.

Assignees

• Asia Vital Components Co Ltd

Inventors

• Yang Hsiu-Wei
• Chang Fu-Kuei

Classifications

• B23P2700/09

  Heat pipes · CPC title

• B23P15/26 Primary

  heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)} · CPC title

• F28D15/046

  characterised by the material or the construction of the capillary structure · CPC title

• F28F13/003

  by using permeable mass, perforated or porous materials (F28F13/18 takes precedence) · CPC title

• G06F1/20

  Cooling means · CPC title