CN111386001A

CN111386001A - Vapor chamber with liquid pipe inside

Info

Publication number: CN111386001A
Application number: CN201811627461.6A
Authority: CN
Inventors: 赖耀惠
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-07-07

Abstract

The present invention provides a Vapor Chamber (Vapor Chamber) having a liquid pipe therein, comprising: the shell forms a cavity in the interior, and the shell is provided with an upper shell part and a lower shell part; the first capillary material is provided with an upper capillary material and a lower capillary material, the upper capillary material is arranged on the lower surface of the upper shell part, the lower capillary material is arranged on the upper surface of the lower shell part, and the upper capillary material and the lower capillary material are both positioned in the chamber; a liquid pipe part horizontally extends in the chamber, the liquid pipe is provided with an inlet and an outlet which both extend out of the shell, and liquid enters from the inlet and is discharged from the outlet; the second capillary material is arranged on the outer pipe wall of the liquid pipe and is positioned in the cavity, the top of the second capillary material is contacted with the upper capillary material, and the bottom of the second capillary material is contacted with the lower capillary material; and an actuating fluid. The temperature-equalizing plate can improve the heat dissipation effect.

Description

Vapor chamber with liquid pipe inside

Technical Field

The present invention relates to a heat dissipation device, and more particularly, to a Vapor Chamber (Vapor Chamber) having a liquid pipe therein and combining a Vapor Chamber and a liquid cooling structure.

Background

Taiwan patent No. M500919 discloses a water-cooling heat dissipation device and a water-cooling head thereof, which includes a temperature-uniforming plate, a heat-conducting column and a housing. The heat conducting column extends from the surface of the temperature equalizing plate, the housing covers the temperature equalizing plate to form a water cooling cavity, the heat conducting column is located in the water cooling cavity, the two ends of the housing are respectively provided with a water inlet and a water outlet, then liquid (generally water) is added into the water cooling cavity, the temperature equalizing effect of the temperature equalizing plate is utilized, and the heat energy of the temperature equalizing plate is taken away by the liquid in the water cooling cavity, so that the dual effects of temperature equalizing and liquid cooling are achieved.

However, in the prior art, the heat dissipation effect is achieved only by the liquid cooling effect of the water cooling cavity, and the water cooling cavity is disposed above the upper plate body of the temperature-uniforming plate, so that the upper plate body of the temperature-uniforming plate cannot be provided with heat dissipation fins, and the overall structure is only a heat dissipation source of the water cooling cavity. In addition, if the radiating fins are required to be additionally arranged, the radiating fins can only be arranged on the surface of the shell of the water cooling cavity and cannot be directly arranged on the temperature equalizing plate. These two disadvantages make the aforementioned prior art poor heat dissipation.

Disclosure of Invention

The main objective of the present invention is to provide a Vapor Chamber (Vapor Chamber) having a liquid pipe therein, wherein the liquid pipe for liquid cooling is disposed in the Vapor Chamber, so that the heat exchange can be directly performed on the working liquid in the Vapor Chamber, thereby improving the heat dissipation effect of the Vapor Chamber.

Another objective of the present invention is to provide a Vapor Chamber (Vapor Chamber) having a liquid pipe therein, which can provide a space above the Vapor Chamber to arrange the heat dissipation fins under the liquid cooling effect, so as to increase the heat dissipation effect.

In order to achieve the above object, the present invention provides a Vapor Chamber (Vapor Chamber) having a liquid pipe therein, comprising: a shell, a cavity is formed in the shell, and the shell is provided with an upper shell part and a lower shell part; the first capillary material is provided with an upper capillary material and a lower capillary material, the upper capillary material is arranged on the lower surface of the upper shell part and is positioned in the cavity, and the lower capillary material is arranged on the upper surface of the lower shell part and is positioned in the cavity; a liquid pipe extending horizontally partially in the chamber, the liquid pipe having two ends defining one end as an inlet and the other end as an outlet, the inlet and the outlet extending outside the housing for a liquid to enter from the inlet and to exit from the outlet; the second capillary material is arranged on the outer pipe wall of the liquid pipe and positioned in the cavity, the top of the second capillary material is contacted with the upper capillary material, and the bottom of the second capillary material is contacted with the lower capillary material; and an actuating fluid filled into the chamber, the actuating fluid being adsorbed in the first and second capillary members.

In one embodiment, the tube is curved to meander within the chamber.

In one embodiment, the liquid tube is S-shaped and meanders in the chamber.

In one embodiment, the liquid pipe forms an S-shaped reciprocating serpentine shape in the chamber by a combination of a plurality of curved sections and a plurality of straight sections, and one curved section is connected between two straight sections; in addition, the two straight sections connected to one bending section are in a state that the farther away the bending section is, the closer the straight sections are to each other.

In one embodiment, the cross section of the liquid pipe in the extending direction is narrow at the left and right sides and wide at the top and bottom.

In one embodiment, a portion of the length of the liquid pipe connected to the inlet is defined as a connection section, a portion of the length of the liquid pipe connected to the outlet is also defined as a connection section, the two connection sections have a predetermined length and have circular cross sections, the two connection sections are located in the chamber, and the second capillary material is not disposed on the outer wall of the two connection sections.

In an embodiment, the upper housing portion and the lower housing portion are integrally formed by connecting two arc-shaped sidewalls, and are in a flat tubular structure, two end caps are respectively disposed at two ends of the flat tubular structure to form the chamber, wherein one of the end caps has two through holes, and the inlet and the outlet of the liquid pipe pass through the two through holes and extend out of the housing; the inner wall surfaces of the two arc-shaped side walls are provided with arc-shaped capillary materials which are connected with the upper capillary material and the lower capillary material.

In one embodiment, the second capillary material is not in contact with the two end caps and is spaced apart from the two end caps by a predetermined distance.

In an embodiment, the upper housing is a plate, the lower housing is also a plate, the upper housing and the lower housing are two independent components, four sidewalls are respectively extended downward and outward around the upper housing, the lower housing covers the four sidewalls of the upper housing to form the chamber therein, one of the sidewalls has two through holes, and the inlet and the outlet of the liquid pipe pass through the two through holes and extend out of the housing.

In one embodiment, the second capillary material is not in contact with the four sidewalls but is separated from the four sidewalls by a predetermined distance.

Therefore, the Vapor Chamber (Vapor Chamber) with the liquid pipe inside can directly cool the actuating liquid inside the Vapor Chamber, and can further provide a space on the upper part of the Vapor Chamber to arrange the heat dissipation fins under the effect of liquid cooling, so that the heat dissipation effect can be further improved after the heat dissipation fins are arranged.

Drawings

Fig. 1 is a perspective view of a first preferred embodiment of the present invention.

Fig. 2 is a schematic perspective exploded view of the first preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view taken along the direction 3-3 in fig. 1.

Fig. 4 is a schematic cross-sectional view taken in the direction 4-4 of fig. 1.

FIG. 5 is a schematic view of a liquid tube of the first preferred embodiment of the present invention arranged in a curved configuration in different forms.

Fig. 6 is a schematic view illustrating the liquid pipe of the first preferred embodiment of the present invention arranged in a linear shape.

FIG. 7 is a schematic view illustrating a usage status of the first preferred embodiment of the present invention.

Fig. 8 is a perspective view of a second preferred embodiment of the present invention.

FIG. 9 is a schematic cross-sectional view of a second preferred embodiment of the present invention.

Wherein, the reference numbers:

10 vapor chamber with liquid tube inside

11 casing

111 upper shell part

112 lower shell part

113,114 arc side wall

12 chamber

13 first capillary material

131 upper capillary material

132 lower capillary material

133,134 arc capillary material

14 heat sink fin

15 liquid pipe

151 inlet

152 outlet port

153,154 connection segment

155 curved segment

156 straight section

17 second capillary material

18,19 end caps

191,192 perforation

L liquid

H heat source

20 vapor chamber with liquid tube inside

211 upper shell part

212 lower shell part

213 side wall

214,215 perforation

22 chamber

25 liquid pipe

251 inlet

252 outlet

27 second capillary material

Detailed Description

To illustrate the technical features of the present invention in detail, the following preferred embodiments are described in conjunction with the drawings, in which:

referring to fig. 1 to 4, a vapor chamber (vapor chamber)10 with a liquid pipe therein according to a first preferred embodiment of the present invention includes: a housing 11, a first capillary material 13, a liquid pipe 15 and a second capillary material 17, wherein:

the housing 11 is made of copper, and has an upper shell 111, a lower shell 112, and two arc-shaped sidewalls 113,114 located at two sides of the upper shell 111 and the lower shell 112, the upper shell 111, the lower shell 112, and the two arc-shaped sidewalls 113,114 are integrally formed to be a flat tube structure, two ends of the flat tube structure are respectively disposed and then matched with two

end caps

18,19 to form a chamber 12, wherein one end cap 19 has two through

holes

191, 192.

The first capillary material 13 is formed by sintering copper powder, and has an upper capillary material 131 and a lower capillary material 132, the upper capillary material 131 is disposed on the lower surface of the upper shell 111, the lower capillary material 132 is disposed on the upper surface of the lower shell 112, and the upper capillary material 131 and the lower capillary material 132 of the first capillary material 13 are sintered copper powder. In the embodiment of the present disclosure, an arc capillary material 133,134 is respectively disposed on the inner wall surface of the two arc sidewalls 113,114, and the two arc capillary materials 133,134 are connected to the upper capillary material 131 and the lower capillary material 132, and during actual manufacturing, the two arc capillary materials 133,134 can be integrally sintered with the upper capillary material 131 and the lower capillary material.

The liquid pipe 15 is a copper pipe, which defines one end as an inlet 151 and the other end as an outlet 152, the inlet 151 and the outlet 152 extend out of the housing 11 through the two through holes 191,192 of the end cap 19, a portion of the length of the liquid pipe 15 connected to the inlet 151 defines a connection section 153, a portion of the length of the liquid pipe 15 connected to the outlet 152 defines a connection section 154, the two connection sections 153,154 have predetermined lengths, the two connection sections 153,154 are located in the chamber 12, and a liquid L can enter from the inlet 151 and can be discharged from the outlet 152; in addition, the liquid pipe 15 is a combination of a plurality of curved sections 155 and a plurality of straight sections 156, and the curved section 155 is connected between the two straight sections 156, and the chamber 12 forms an S-shaped reciprocating serpentine shape, and the curved sections 155 are not in contact with the two end caps 18 and 19 and are spaced apart from each other by a predetermined distance, however, the liquid pipe 15 is not limited to the S-shaped reciprocating serpentine shape, and may be other curved shapes (as shown in fig. 5), and may be other shapes (as shown in fig. 6), which still belong to the technical scope of the present invention.

In addition, for the liquid pipe 15, the space inside the chamber 12 and the space occupied by the liquid pipe 15 itself can be evenly distributed between the two straight sections 156 connected to the curved section 155 in a state that the farther from the curved section 155, the closer to each other, as shown in fig. 3. As shown in fig. 4, the cross section of the liquid pipe 15 in the extending direction is narrow on the left and right sides and wide on the top and bottom. In addition, as shown in FIG. 3, the two connecting sections 153,154 are circular in cross-section.

The second capillary material 17 is also sintered by copper powder, the second capillary material 17 is disposed on the outer wall of the liquid pipe 15 and located in the chamber 12, the top of the second capillary material 17 contacts the upper capillary material 131, the bottom of the second capillary material 17 contacts the lower capillary material 132, the outer wall of the two connecting sections 153,154 does not have the second capillary material 17, and the second capillary material 17 does not contact the two

end caps

18,19 because the plurality of bent sections 155 of the liquid pipe 15 do not contact the two

end caps

18,19 and are separated by a predetermined distance, so that the liquid pipe 15 does not divide the chamber 12 into too many small spaces, and the space remains open for the passage of the steam-driven liquid as described later.

The chamber 12 is filled with a working fluid (not shown) such as pure water, which is adsorbed to the first and second

capillary materials

13 and 17, and this adsorption state is difficult to show in the figure, and the working fluid is not shown in the figure because it is a conventional element.

The structure of the present invention is explained above, and the operation state of the present invention is explained next.

Referring to fig. 7, the assembly is performed before operation, and the lower surface of the lower housing portion 112 contacts a heat source H, which may be a microprocessor, an integrated circuit, a radio frequency device, or other device or module that generates heat energy. A heat sink 14 is disposed on the upper surface of the upper housing 111 to provide heat dissipation. In addition, the liquid pipe 15 is connected to a pipe body at the inlet 151 and the outlet 152 respectively, so that the liquid L is introduced into the inlet 151 and then is discharged from the outlet 152, and the liquid L may be water or oil or other liquid, in the embodiment of the present disclosure, water.

When the present invention is used, the heat energy of the heat source H is transferred to the chamber 12 through the lower casing part 112, the liquid working fluid absorbed in the lower capillary 132 is heated and evaporated to become a vapor working fluid, and enters the chamber 12, wherein a part of the vapor working fluid contacts the upper capillary 131, and another part of the vapor working fluid contacts the second capillary 17.

When the vaporous working fluid contacts the upper capillary 131, the upper shell 111 disposed on the upper capillary 131 directly contacts the plurality of heat dissipation fins 14, so the temperature of the upper capillary 131 is low, and the vaporous working fluid contacts the upper capillary 131 and then is condensed into liquid working fluid and adsorbed. Since the second capillary material 17 is in contact with the upper capillary material 131 and the lower capillary material 132, the liquid actuating fluid can rapidly flow back to the lower capillary material 132 by capillary action and is ready to be evaporated by heat. In addition, the liquid working fluid adsorbed on the upper capillary material 131 can also flow back to the lower capillary material 132 through the two arc-shaped

capillary materials

133 and 134.

When the vapor working fluid contacts the second capillary material 17, because the second capillary material 17 is disposed on the outer wall of the liquid pipe 15, and the liquid L flows through the liquid pipe 15 to provide a heat dissipation effect, the temperature of the second capillary material 17 is low, the vapor working fluid contacts the second capillary material 17, is cooled and condensed into the liquid working fluid, and is absorbed in the liquid working fluid, and the liquid working fluid rapidly flows back to the lower capillary material 132 through the capillary action.

In view of the above, the liquid pipe 15 is disposed in the housing 11, and the liquid L circulates in the liquid pipe 15, and the liquid pipe 15 can be regarded as a first heat dissipation source; in the present invention, the heat sink fins 14 can be installed outside the housing 11, and the heat sink fins 14 can be regarded as a second heat sink. Because the prior art only has one heat dissipation source of the water cooling cavity, compared with the prior art, the invention can have two heat dissipation sources and has better heat dissipation effect compared with the prior art.

Furthermore, the liquid pipe 15 for water cooling provided by the present invention is directly meandered in the chamber 12, and the heat dissipation fins 14 can be disposed on the housing 11, and the heat dissipation fins 14 can be directly contacted with the temperature equalization plate of the present invention, so that the present invention can provide direct heat dissipation effect for the heat dissipation fins 14, compared with the prior art in which the heat dissipation fins are only disposed on the housing of the water cooling chamber. Therefore, the present invention directly cools the actuating fluid inside the temperature-uniforming plate 10 through the fluid pipe 15, and further provides a space above the temperature-uniforming plate 10 to arrange the heat dissipation fins 14 under the effect of the fluid cooling, so that the heat dissipation effect can be further improved after arranging the heat dissipation fins 14.

In addition, the liquid pipe 15 can provide a supporting effect between the upper shell portion 111 and the lower shell portion 112 of the housing 11 by the structure that the first capillary material 13 contacts with the second capillary material 17.

Referring to fig. 8 and fig. 9, a Vapor Chamber (Vapor Chamber)20 with a liquid tube therein according to a second preferred embodiment of the present invention is generally similar to the first embodiment, except that:

the upper housing portion 211 is a plate, the lower housing portion 212 is also a plate, the upper housing portion 211 and the lower housing portion 212 are two independent components, four sidewalls 213 are respectively extended downward and outward around the upper housing portion 211, the lower housing portion 212 covers the four sidewalls 213 of the upper housing portion 211 to form the chamber 22 therein, and one of the sidewalls 213 has two through

holes

214, 215. The liquid pipe 25 passes through the two through holes 214,215, and the inlet 251 and the outlet 252 are located outside the sidewall 213.

The second capillary 27 is not in contact with the four sidewalls 213 and is spaced apart from the sidewalls by a predetermined distance.

The rest of the structure and the effect achieved by the second embodiment are similar to those of the first embodiment, and will not be described again.

The above description of the case and capillary material made of copper or copper powder is only exemplary, and other materials such as aluminum, stainless steel or other materials known to be used as the case and capillary material of the vapor chamber are also within the technical scope of the present invention.

The present invention is capable of other embodiments, and various changes and modifications may be made 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 chamber having a liquid conduit therein, comprising:

a shell, a cavity is formed in the shell, and the shell is provided with an upper shell part and a lower shell part;

the first capillary material is provided with an upper capillary material and a lower capillary material, the upper capillary material is arranged on the lower surface of the upper shell part and is positioned in the cavity, and the lower capillary material is arranged on the upper surface of the lower shell part and is positioned in the cavity;

a liquid pipe extending horizontally partially in the chamber, the liquid pipe having two ends defining one end as an inlet and the other end as an outlet, the inlet and the outlet extending outside the housing for a liquid to enter from the inlet and to exit from the outlet;

the second capillary material is arranged on the outer pipe wall of the liquid pipe and positioned in the cavity, the top of the second capillary material is contacted with the upper capillary material, and the bottom of the second capillary material is contacted with the lower capillary material; and

an actuating fluid filled in the chamber, the actuating fluid being absorbed in the first and second capillary materials.

2. The vapor chamber of claim 1, wherein the tube is curved to meander within the chamber.

3. The vapor chamber of claim 2, wherein the tube is serpentine back and forth in an S-shape within the chamber.

4. The vapor chamber of claim 3, wherein the liquid tube is formed in the chamber in an S-shaped reciprocating serpentine shape by a combination of a plurality of curved sections and a plurality of straight sections, and a curved section is connected between two straight sections; in addition, the two straight sections connected to one bending section are in a state that the farther away the bending section is, the closer the straight sections are to each other.

5. The vapor chamber plate of claim 1, wherein the cross section of the liquid pipe extending direction is narrow at left and right sides and wide at top and bottom.

6. The vapor chamber of claim 1, wherein a portion of the length of the liquid pipe connected to the inlet is defined as a connection section, a portion of the length of the liquid pipe connected to the outlet is also defined as a connection section, the two connection sections have a predetermined length and are circular in cross section, the two connection sections are located in the chamber, and the second capillary material is not disposed on the outer tube walls of the two connection sections.

7. The vapor chamber plate as claimed in claim 1, wherein the upper housing portion and the lower housing portion are integrally formed by connecting two curved sidewalls at two sides thereof to form a flat tube structure, two end caps are respectively disposed at two ends of the flat tube structure to form the chamber, one of the end caps has two through holes, and the inlet and the outlet of the liquid pipe extend out of the housing through the two through holes; the inner wall surfaces of the two arc-shaped side walls are provided with arc-shaped capillary materials which are connected with the upper capillary material and the lower capillary material.

8. The vapor chamber with a liquid pipe inside according to claim 7, wherein the second capillary material is not in contact with the end caps and is spaced apart from the end caps by a predetermined distance.

9. The vapor chamber of claim 1, wherein the upper housing portion is a plate, the lower housing portion is a plate, the upper housing portion and the lower housing portion are two separate components, the upper housing portion and the lower housing portion are respectively provided with four sidewalls extending downward and outward, the lower housing portion covers the four sidewalls of the upper housing portion to form the chamber therein, one of the sidewalls has two through holes, and the inlet and the outlet of the liquid pipe are extended out of the housing through the two through holes.

10. The vapor chamber with a liquid pipe inside according to claim 9, wherein the second capillary material is spaced apart from the four sidewalls without contacting the four sidewalls.