CN203489758U

CN203489758U - Heat pipe structure

Info

Publication number: CN203489758U
Application number: CN201320591627.XU
Authority: CN
Inventors: 杨修维; 张富贵
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2014-03-19
Anticipated expiration: 2023-09-24

Abstract

The utility model relates to a heat pipe structure. The heat pipe structure comprises a pipe body and a reticulate body, wherein the pipe body is provided with a cavity; the cavity is provided with a first side, a second side and working fluid; the first side and the second side are provided with a first groove set and a second groove set respectively; the intersection of the first groove set and the wall face of the first side is provided with a first contact portion; the intersection of the second groove set and the wall face of the second side is provided with a second contact portion; the reticulate body is arranged in the cavity and is attached to the first contact portion and the second contact portion, and therefore the thickness of a heat pipe is decreased by a large margin, and the manufacturing cost can be lowered.

Description

Heat pipe structure

Technical field

The present invention relates to a kind of heat pipe structure, espespecially a kind ofly make more slimming of heat pipe, and reduce the heat pipe structure of manufacturing cost.

Background technology

Therefore heat pipe, the pyroconductivity on it is apparent is several times to tens times left and right of the metals such as copper, aluminium and suitable excellence, is that with element, quilt is applied to various hot countermeasure correlation machines as cooling.From shape, heat pipe can be divided into the heat pipe of round tube shape, the heat pipe of flat shape.Part to be cooled for the e-machine of cooling CPU etc., based on being easily installed on part to be cooled and can obtaining the viewpoint of broader contact area, and along with miniaturization, the save space of cooling body, in the situation of using the cooling body of heat pipe, also require the slimming of this heat pipe, conventionally should use plane (plate) or thin type heat pipe.

At inside heat pipe, be provided with space (chamber) and be used as the stream of working fluid, and be contained in the working fluid in this space (chamber), via the phase change of evaporation, condensation etc. and movement etc., and carry out hot transfer.Next the action of detailed explanation heat pipe, this heat pipe possesses cavity (chamber) portion of sealing, by the phase change that is contained in the working fluid of this cavity (chamber) portion, carries out hot transfer with moving.

Therefore, industry adopts heat pipe as the element of far-end heat conduction, heat pipe is arranged in radiating fin, utilize the low boiling hydraulic fluid of inside heat pipe filling in heat-generating electronic elements place (evaporation ends) heat absorption evaporation, the working fluid that is steam moves to radiating fin, at radiating fin place, (condensation end) is passed to radiating fin by the heat of heat-generating electronic elements generation, and recycling radiator fan is taken away the heat on radiating fin, completes the heat radiation to electronic component.

The manufacture method of heat pipe is by utilizing the center bar of a tool to carry out filling metal powder in a hollow tube, and the mode by sintering forms a capillary structure layer in this hollow tube inwall by this metal dust, this body vacuumized insert working fluid last tube sealing thereafter, and because of the demand of the slimming of electronic equipment, and heat pipe compacting need be made to thin (plate) type.

Prior art pass through by a heat pipe flatten make flat tabular, so as to meeting the demand of slimming, heat pipe will be made into slim is primarily after heat pipe is filled out to powder sintering, this heat pipe to be flattened and becomes flat, after inserting working fluid, finally carry out tube sealing thereafter, or be first the body of heat pipe to be pressed into flat-shaped, filling out powder sintering operation thereafter, but very narrow because flattening rear body internal chamber, therefore cause and fill out powder job execution and be difficult for and puzzlement, and because will having concurrently simultaneously, supports and capillary force conduction use the capillary structure in heat pipe, in too narrow space, effect is limited.

Another person, the steam channel of inside heat pipe will be because of the excessive narrow steam-condensate circulating that affects, and this processing procedure and structure are very inappropriate.

Therefore prior art has following shortcoming:

The processing of slimming heat pipe is difficult for;

Destructible capillary structure in hot pipe;

Manufacturing cost is higher.

Summary of the invention

Therefore,, for solving the shortcoming of above-mentioned prior art, main purpose of the present invention is that a kind of heat pipe structure of realizing heat pipe slimming and reducing manufacturing cost is provided.

For reaching above-mentioned purpose, the present invention proposes a kind of heat pipe structure, comprise: a body, there is a chamber, this chamber has one first side and one second side and a working fluid, described first and second side wall surface is arranged with one first groups of slots and one second groups of slots, and this first and second groups of slots and this first and second side wall surface intersection have respectively one first contact site and one second contact site; One reticulate body, is located in aforementioned cavity, is sticked mutually with at least one contact site of aforementioned first and second contact site.

Described first and second groups of slots is to extend axially to be arranged at this first and second side wall surface.

This chamber has more one the 3rd side and one the 4th side, and described first and second side is mutually corresponding, and described third and fourth side is mutually corresponding and connect respectively aforementioned first and second side, and described first and second groups of slots is not extended and is arranged at described third and fourth side.

These grooves of described the first groups of slots, select triangular in shape and semicircle and column type and ohm font wherein arbitrary.

These grooves of described the second groups of slots, select triangular in shape and semicircle and column type and ohm font wherein arbitrary.

Described reticulate body is that wire netting and fleece are wherein arbitrary.

By heat pipe structure of the present invention, design, not only simple in structure and more slimming, in addition, because processing procedure is simple and using reticulate body, as capillary structure, can save the volume restrictions of using center bar to do capillary structure, so as to reaching more slimming, make heat pipe integral thickness thinner, and more reduce its manufacturing cost and yield rate.

Accompanying drawing explanation

Fig. 1 is the three-dimensional cutaway view of the first embodiment of heat pipe structure of the present invention;

Fig. 2 is the cutaway view of the second embodiment of heat pipe structure of the present invention;

Fig. 3 is the cutaway view of the 3rd embodiment of heat pipe structure of the present invention;

Fig. 4 is the flow chart of steps of heat pipe structure manufacture method the first embodiment of the present invention; Fig. 5 is the flow chart of steps of heat pipe structure manufacture method the second embodiment of the present invention; Fig. 6 is the flow chart of steps of heat pipe structure manufacture method the 3rd embodiment of the present invention.

Symbol description

Heat pipe structure 1

Body 11

Chamber 111

The first side 111a

The second side 111b

The 3rd side 111c

The 4th side 111d

The first groups of slots 112

The second groups of slots 113

The first contact site 114

The second contact site 115

Reticulate body 12

Working fluid 2

The working fluid 21 of liquid state

The working fluid 22 of steam state

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:

Characteristic in above-mentioned purpose of the present invention and structure thereof and function, will be explained according to appended graphic preferred embodiment.

The invention provides and refer to Fig. 1, is the three-dimensional cutaway view of the first embodiment of heat pipe structure of the present invention, and as shown in the figure, described heat pipe structure 1, comprises: a body 11, a reticulate body 12;

Described body 11 has a chamber 111, this chamber 111 has one first side 111a and one second side 111b and a working fluid 2, described first and second side 111a, 111b wall are arranged with one first groups of slots 112 and one second groups of slots 113, this first and second groups of slots 112,113 and this first and second side 111a, 111b wall intersection have respectively one first contact site 114 and one second contact site 115, and described first and second groups of slots 112,113 extends axially and is arranged at this first and second side 111a, 111b wall.

This chamber 111 has more one the 3rd side 111c and one the 4th side 111d, described first and second side 111a, 111b are mutually corresponding, described third and fourth side 111c, 111d are mutually corresponding, and connecting respectively aforementioned first and second side 111a, 111b, described first and second groups of slots 112,113 is not extended and is arranged at described third and fourth side 111c, 111d.

It is wherein arbitrary that described reticulate body 12 can be braiding structure body or honeycomb structure body or how much stereo formation bodies, it is located in aforementioned cavity 111, directly contact and be sticked with at least one or both sides of aforementioned first and second contact site 114,115, the best of the present invention is affixed in the second groups of slots 113 of the second side 111b, and described reticulate body 12 is that wire netting and fleece are wherein arbitrary in addition.

These grooves of described first and second groups of slots 112,113 select triangular in shape and semicircle and column type and ohm font wherein arbitrary, the present embodiment is usingd triangle as explanation embodiment, but does not regard it as and be limited.

Refer to Fig. 2, cutaway view for the second embodiment of heat pipe structure of the present invention, as shown in the figure, the present embodiment part-structure is identical with aforementioned the first embodiment, therefore will repeat no more at this, only the present embodiment and aforementioned the first embodiment do not exist together for these groove semicirculars in shape of described first and second groups of slots 112,113 and column type and ohm font wherein arbitrary, the present embodiment is usingd ohm font as explanation but is not regarded it as and be limited.

Refer to Fig. 3, cutaway view for the 3rd embodiment of heat pipe structure of the present invention, as shown in the figure, the present embodiment part-structure is identical with aforementioned the first embodiment, therefore will repeat no more at this, only the present embodiment and aforementioned the first embodiment do not exist together for these groove semicirculars in shape of described first and second groups of slots 112,113 and column type and ohm font wherein arbitrary, first groups of slots 112 of the present embodiment is an ohm font, described the second groups of slots semicircular in shape 113.

The heat pipe structure disclosing by aforementioned first, second and third embodiment, can replace by reticulate body intrinsic powder sintered, and then significantly reduce the thickness of heat pipe integral body, realize the heat pipe structure of more slimming, and pass through the first groups of slots 112 as steam channel, the second groups of slots 113 is strengthened capillary abilities and can more be strengthened the efficiency of steam-condensate circulating.

Another person, still possesses steam channel though heat pipe is made to slimming, makes that steam-condensate circulating in heat pipe is sustainable is not subject to that space is narrow to be affected.

Moreover, the setting of first and second groups of slots 112,113 and this reticulate body 12 is converted to the working fluid 22 of steam state after can making liquid working fluid 21 evaporate in this chamber 111, this first groups of slots 112 can be used as steam channel makes the working fluid 22 of steam state spread in this first groups of slots 112, the working fluid 22 of last steam state in this first groups of slots 112 or first and second contact site 114,115 condensations collect and be converted to liquid working fluid 21, and because dripping under Action of Gravity Field in this reticulate body 12 and the interior repetition steam-condensate circulating of the second groups of slots 113.

Refer to Fig. 4, for the flow chart of steps of heat pipe structure manufacture method the first embodiment of the present invention, please also refer to Fig. 1,2,3, as shown in the figure, described heat pipe structure manufacture method, comprises the following step:

S1 a: body and a reticulate body are provided;

Body 11 and a reticulate body 12 of one hollow are provided, described body 11 can be selected two ends to be open shape or select one end to be at least the body 11 of open shape, this body 11 for a kind of heat conduction good conductor as copper material and aluminium material or its alloy of organizing mutually wherein arbitrary, the present embodiment is usingd copper material as explanation embodiment but is not regarded it as and be limited.

Described reticulate body 12 is that wire netting and fleece are wherein arbitrary, and the present embodiment is usingd wire netting as explanation but do not regarded it as and be limited.

S2: axially offer at least one groove in this body internal chamber wall;

In the internal chamber 111 of this body 11 along this body 11 axially, by the mode of machining, offer at least one groove (the first groups of slots 112 and the second groups of slots 113).

S3: aforementioned reticulate body is inserted to aforementioned cavity;

Aforementioned reticulate body 12 is inserted in the chamber 111 of this body 11, this reticulate body 12 can doubling Huo Juan district mode correspondence in a tubular form be inserted in this chamber 111.

S4: this body is added to compacting and be flat;

The body 11 of by machining, internal chamber 111 having been inserted to reticulate body 12 is together with the operation of pressurizeing of this reticulate body 12, until this body 11 is flat, described machining is that punch process and rotary rolling mill are wherein arbitrary.

S5: vacuumize and insert hydraulic fluid and tube sealing operation.

Finally for the aforementioned flat-shaped body 11 of having made, vacuumize, insert the operations such as working fluid and tube sealing.

Refer to Fig. 5, for the flow chart of steps of heat pipe structure manufacture method the second embodiment of the present invention, please also refer to Fig. 1,2,3, as shown in the figure, described heat pipe structure manufacture method, comprises the following step:

S1 a: body and a reticulate body are provided;

S2: axially offer at least one groove in this body internal chamber wall;

S3: aforementioned reticulate body is inserted to aforementioned cavity;

S4: this body is added to compacting and be flat;

S5: vacuumize and insert hydraulic fluid and tube sealing operation.

The present embodiment is identical with aforementioned the first embodiment partial content, therefore will repeat no more not existing together for described step S4 of the present embodiment and aforementioned the first embodiment only at this: this body is added to be pressed into have more a step after this step of flat:

S6: this body and this reticulate body are carried out to sintering work;

For adding the body 11 and the reticulate body 12 that are pressed into flat, together carry out sintering work, make described body 11 and this reticulate body 12 more combine closely.

Refer to Fig. 6, for the flow chart of steps of heat pipe structure manufacture method the 3rd embodiment of the present invention, please also refer to Fig. 1,2,3, as shown in the figure, described heat pipe structure manufacture method, comprises the following step:

S1 a: body and a reticulate body are provided;

S2: axially offer at least one groove in this body internal chamber wall;

S3: aforementioned reticulate body is inserted to aforementioned cavity;

S4: this body is added to compacting and be flat;

S5: vacuumize and insert hydraulic fluid and tube sealing operation.

S7: this body and this reticulate body are carried out to diffusion bond operation;

For adding the body 11 and the reticulate body 12 that are pressed into flat, together carry out diffusion bond operation, make described body 11 and this reticulate body 12 more combine closely.

By heat pipe structure of the present invention and manufacture method thereof, not only can improve this shortcoming of volume restrictions of using center bar to do capillary structure, the person of entering more can make heat pipe reach more slimming, makes heat pipe integral thickness thinner, and reduces its manufacturing cost.

Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention, any person skilled in the art person, without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, so protection scope of the present invention is worked as with standard that claims are decided to be.

Claims

1. a heat pipe structure, comprises:

One body, there is a chamber, this chamber has one first side and one second side and a working fluid, described first and second side wall surface is arranged with one first groups of slots and one second groups of slots, and this first and second groups of slots and this first and second side wall surface intersection have respectively one first contact site and one second contact site;

One reticulate body, is located in aforementioned cavity, is sticked mutually with at least one contact site of aforementioned first and second contact site.

2. heat pipe structure as claimed in claim 1, described first and second groups of slots, extends axially and is arranged at this first and second side wall surface.

3. heat pipe structure as claimed in claim 1, wherein this chamber has more one the 3rd side and one the 4th side, described first and second side is mutually corresponding, described third and fourth side is mutually corresponding and connect respectively aforementioned first and second side, and described first and second groups of slots is not extended and is arranged at described third and fourth side.

4. heat pipe structure as claimed in claim 1, these grooves of described the first groups of slots, select triangular in shape and semicircle and column type and ohm font wherein arbitrary.

5. heat pipe structure as claimed in claim 1, these grooves of described the second groups of slots, select triangular in shape and semicircle and column type and ohm font wherein arbitrary.

6. heat pipe structure as claimed in claim 1, described reticulate body is that wire netting and fleece are wherein arbitrary.