CN111988951A

CN111988951A - Capillary supporting structure of temperature equalizing plate

Info

Publication number: CN111988951A
Application number: CN201910436932.3A
Authority: CN
Inventors: 王证都; 廖邦宏; 王健名
Original assignee: Chaun Choung Technology Corp
Current assignee: Nidec Chaun Choung Technology Corp
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-11-24

Abstract

A capillary supporting structure of a temperature equalizing plate comprises a plate-shaped shell and a capillary supporting plate arranged in the plate-shaped shell, wherein the capillary supporting plate is divided into an upper layer part and a lower layer part by the thickness of the capillary supporting plate, the upper layer part forms an upper supporting part and an upper naked hollow part which are arranged adjacent to each other on the capillary supporting plate in a first direction, the lower layer part forms a lower supporting part and a lower naked hollow part which are arranged adjacent to each other on the capillary supporting plate in a second direction, and capillary channels are arranged on the upper supporting part and the lower supporting part. Therefore, the effect of capillary and support in the temperature-uniforming plate can be provided simultaneously under the requirement of thinning.

Description

Capillary supporting structure of temperature equalizing plate

Technical Field

The present invention relates to a heat transfer structure, and more particularly, to a capillary support structure of a vapor chamber.

Background

Due to the demand for thinner 3C electronic products, elements such as temperature equalization plates, which are used as internal heat dissipation and heat transfer elements, are also required to be thinner. However, in a typical vapor chamber, in addition to the thickness of the upper and lower plate bodies, it is important that the vapor space inside the vapor chamber is sufficient, and conventionally, a support structure is usually provided in the vapor space to ensure the existence of the vapor space and avoid affecting the heat exchange effect inside the vapor chamber.

However, under the above-mentioned requirement of thinning, many of the vapor chambers have a thinner thickness and no supporting structure for the vapor space inside the vapor chambers. Thus, the vapor space is often in a vacuum state, so that the excessively thin plate body cannot bear the external pressure and is recessed inwards, and the existence of the vapor space is influenced.

Disclosure of Invention

The primary objective of the present invention is to provide a capillary support structure for a vapor chamber, which can be disposed in the vapor chamber and provide both capillary and support effects.

In order to achieve the above object, the present invention provides a capillary support structure of a temperature equalization plate, comprising a plate-shaped housing and a capillary support plate disposed in the plate-shaped housing, wherein the capillary support plate is divided into an upper layer portion and a lower layer portion by its thickness, the upper layer portion forms an upper support portion and an upper empty portion arranged adjacent to each other on the capillary support plate in a first direction, the lower layer portion forms a lower support portion and a lower empty portion arranged adjacent to each other on the capillary support plate in a second direction, and the upper support portion and the lower support portion are both provided with capillary channels.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1 is an exploded perspective view of the present invention;

FIG. 2 is an enlarged detail view of section A of FIG. 1;

FIG. 3 is a perspective assembly view of the present invention;

FIG. 4 is an enlarged detail view of portion B of FIG. 3;

FIG. 5 is a schematic plan view of the present invention;

FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 5;

fig. 7 is a cross-sectional view of fig. 5 taken along line 7-7.

Wherein the reference numerals

Plate-shaped housing 1

Base plate 10

Top plate 11

Capillary support plate 2

Upper support part 200 of upper part 20

Upper bare hollow 201 capillary channel 202

Lower section 21 lower support 210

Lower bare hollow 211 capillary channel 212

Frame edge 22

Detailed Description

For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description, and are not intended to limit the invention.

Please refer to fig. 1 and fig. 2, which are a schematic exploded view of the present invention and an enlarged detail view of a portion a of fig. 1, respectively. The invention provides a capillary supporting structure of a temperature-uniforming plate, which comprises a plate-shaped shell 1 and a capillary supporting plate 2 arranged in the plate-shaped shell 1; wherein:

The plate-shaped casing 1 can be divided into a bottom plate 10 and a top plate 11, and after the capillary support plate 2 is clamped up and down, three layers of plates are attached and sealed by processing such as electric welding, and the capillary support plate 2 can be sealed in the plate-shaped casing 1 and subjected to vacuum cavitation.

As shown in fig. 3 and 4, the capillary support plate 2 may be a metal plate, such as a copper plate, disposed in the plate-shaped housing 1, and a frame 22 may be formed at an outer periphery thereof, so that the bottom plate 10 and the top plate 11 are clamped on the frame 22 of the capillary support plate 2 and can be sealed in the plate-shaped housing 1 when sealing is performed. The capillary support plate 2 can be fabricated by processes such as etching to form the following structure: the capillary support plate 2 is divided into an upper portion 20 and a lower portion 21 by the thickness of the capillary support plate 2, the upper portion 20 forms an upper support portion 200 and an upper bare portion 201 arranged adjacent to each other on the capillary support plate 2 in a first direction, the lower portion 21 forms a lower support portion 210 and a lower bare portion 211 arranged adjacent to each other on the capillary support plate 2 in a second direction, and the upper support portion 200 and the lower support portion 210 are both provided with

capillary channels

202 and 212.

Referring to fig. 5 and 6, in more detail, the upper portion 20 exceeds the thickness of the capillary support plate 2 by more than half, and the lower portion 21 also exceeds the thickness of the capillary support plate 2 by more than half; thus, the upper and

lower layers

20 and 21 can maintain the overlapped portion of the upper and

lower supports

200 and 210 to form the integral state of the capillary support plate 2. In addition, the

capillary channels

202 and 212 on the upper and lower supporting

portions

200 and 210 may also be configured as grooves respectively matching with the first direction and the second direction, so that the working fluid (not shown) sealed in the accommodating space 100 can be spread or distributed on the plate surface of the plate-shaped housing 1 by performing capillary action along the first or second direction, thereby achieving the effect of uniform heat transfer.

As shown in fig. 5 and 7, since the first direction and the second direction are staggered on the projection of the plate surface of the plate-shaped shell 1, the upper empty portion 201 of the upper portion 20 of the capillary support sample 2 overlaps with the lower empty portion 211 of the lower portion 21, and the overlapped portions thereof form a vapor space directly communicating the bottom plate 10 and the top plate 11 of the plate-shaped shell 1, so as to maintain the vapor flow smoothly and without obstruction within the shortest distance (i.e., the thickness of the capillary support plate 2), thereby facilitating the heat exchange of the temperature equalization plate and ensuring the function and effect thereof. Particularly, the present invention can effectively maintain the existence of the vapor space and prevent the occurrence of problems such as the concave of the plate-like casing 1, under the precondition that the upper part 20 of the capillary support plate 2 is attached to the inner surface of the top plate 11 and the lower part 21 is attached to the inner surface of the bottom plate 10.

Therefore, the capillary supporting structure of the temperature equalization plate can be obtained by the above structural composition.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A vapor plate capillary support structure, comprising:

a plate-shaped housing; and

the capillary supporting plate is arranged in the plate-shaped shell and is divided into an upper layer part and a lower layer part by the thickness of the capillary supporting plate, the upper layer part forms an upper supporting part and an upper naked hollow part which are arranged adjacently with each other on the capillary supporting plate in a first direction, the lower layer part forms a lower supporting part and a lower naked hollow part which are arranged adjacently with each other on the capillary supporting plate in a second direction, and the upper supporting part and the lower supporting part are both provided with capillary channels.

2. The vapor plate capillary support structure of claim 1, wherein the plate-like housing has a bottom plate and a top plate.

3. The capillary support structure of claim 2, wherein the capillary support plate has a rim formed on the outer periphery thereof, and the bottom plate and the top plate are clamped to the rim of the capillary support plate and sealed.

4. The vapor plate capillary support structure of claim 1, wherein the capillary support plate is a metal plate.

5. The vapor chamber capillary support structure of claims 1 or 4, wherein the capillary support plate is formed by etching.

6. The vapor plate capillary support structure of claim 1, wherein the upper layer portion exceeds more than half of the thickness of the capillary support plate.

7. The vapor plate capillary support structure of claim 1 or 6, wherein the lower layer portion exceeds more than half of the thickness of the capillary support plate.

8. The capillary support structure of claim 1, wherein the capillary channels of the upper and lower support members are configured as grooves corresponding to the first and second directions, respectively.

9. The vapor chamber capillary support structure of claim 1, wherein the first direction and the second direction are staggered with respect to each other in a projection of a plate surface of the plate-shaped housing.