CN205755202U - Heat-sink unit - Google Patents

Abstract

This utility model provides a kind of heat-sink unit, including: a housing and a heat pipe.This housing has a housing cavity and has been installed with a working fluid, and an inwall of this housing cavity is provided with a housing capillary structure.This heat pipe has an open end and a blind end, and a heat pipe chamber is defined between this open end and this blind end and connects, and connects this housing cavity by this open end.The inwall of this heat pipe chamber is provided with a heat tube capillary structure and links this housing capillary structure by the open end capillary of this heat pipe.

Description

Heat-sink unit

[technical field]

This utility model one heat-sink unit, more particularly in the heat-sink unit being applied to heat radiation.

[background technology]

With existing electronic equipment gradually using frivolous as the demand bragged about, therefore each item all must reduce its size therewith, But the heat that the size reduction of electronic equipment is adjoint and produces becomes the major obstacle of electronic equipment and system enhancement performance.So Industry, in order to effectively solve the element radiating problem in electronic equipment, proposes have heat conduction efficiency preferably temperature-uniforming plate the most respectively (Vapor chamber) and heat pipe (Heat pipe), effectively to solve the heat dissipation problem of present stage.

The temperature-uniforming plate (Vapor chamber) housing (or plate body) in square type shape, its enclosure interior chamber wall arranges hair Fine texture, and this enclosure interior is filled with hydraulic fluid, and the side (i.e. evaporating area) of this housing be sticked a heater element (as Central processing unit, north and south bridge wafer, electric crystal, MCU etc.) above adsorb the heat that this heater element is produced, make the work of liquid Liquid produces evaporation and is converted to steam state in the evaporating area of this housing, conducts heat to the condensing zone of this housing, the work of this steam state Making liquid and be condensed into liquid after condensing zone is cooled down, the hydraulic fluid of this liquid is back to steam through gravity or capillary structure again Send out district and continue steam-condensate circulating, effectively to reach the effect of temperature uniforming heat radiation.

The principle of heat pipe (Heat pipe) is identical with temperature-uniforming plate with Theoretical Framework, mainly in the heat pipe of pipe bore Hollow space insert metal dust (or inserting the capillary of woven mesh), and through the mode of sintering in the inwall of this heat pipe Form a ring-type capillary structure, thereafter by this heat pipe evacuation and fill hydraulic fluid, finally close to form heat pipe structure. When hydraulic fluid by evaporation part by thermal evaporation after diffuse to this condensation end, and this hydraulic fluid is steam state in this evaporation part, by this Progressively be converted to liquid by cooling condensation when this condensation end backward diffusion is left in evaporation part, and be back to through capillary structure again This evaporation part.

Relatively temperature-uniforming plate is different from the mode of heat pipe only conduction of heat, and the heat exchange pattern of temperature-uniforming plate is two-dimentional, It is the heat exchange pattern in face, but the heat exchange pattern of heat pipe is one-dimensional heat exchange pattern.

Use both heat transfer units the most more efficiently are that current dealer is required makes great efforts.

[utility model content]

For effectively solving above-mentioned problem, one of this utility model purpose provide a kind of two chamber a housing and One heat pipe, and the capillary structure in the chamber of this housing connects capillary and links the heat radiation list of the capillary structure in the chamber in this heat pipe Unit.

The another object of this utility model is providing a kind of heat-sink unit to include housing and heat pipe, the housing chamber of its middle shell Indoor housing capillary structure thickness adds heat tube capillary structure thickness equal to the thermotube wall thickness of this heat pipe, so that housing hair Fine texture capillary links heat tube capillary structure.

The another object of this utility model can be transmitted from the chamber in a housing in a kind of capillary force of offer or extend to one Chamber in heat pipe so that the hot leaflet unit that the workflow physical ability of cooling is back in housing by capillary force from heat pipe.

For reaching above-mentioned purpose, this utility model provides a kind of heat-sink unit, including: a housing, there is a housing cavity, should Housing cavity content is provided with a housing capillary structure and a working fluid；One heat pipe, has a blind end, an open end and a heat Tube wall, this heat pipe wall has outside one and inside one, defines this open end of heat pipe chamber, a heat pipe capillary knot inside this Structure is located at the inner side of this heat pipe wall and extends to this open end from this heat pipe chamber；Wherein the open end of this heat pipe is plugged in this shell In fluid chamber, this heat pipe chamber connects this housing cavity by this open end, and this heat tube capillary structure is that capillary links this housing Capillary structure.

This housing capillary structure has one first end, this heat tube capillary structure have one second end capillary link this first End.

This housing capillary structure partially or fully defines one first thickness, and this heat pipe wall defines one second thickness, this heat pipe Capillary structure defines one the 3rd thickness, and this first thickness adds the 3rd thickness equal to this second thickness.

This housing cavity has an inner walls and defines one without capillary structure region, and this housing capillary structure is arranged on and keeps away Open in this inner walls without capillary structure region.

This housing has a top side, a bottom side and side side ring and is located between this top side and this bottom side, this housing cavity circle It is scheduled between this top side and this bottom side and this side.

The open end of this heat pipe is plugged in this housing cavity from the side of this housing.

Implementing one, this housing capillary structure partially or fully defines one first thickness, and it is thick that this heat pipe wall defines one second Degree, this heat tube capillary structure defines one the 3rd thickness, and this first thickness adds the 3rd thickness equal to this second thickness.

Implementing one, this housing capillary structure has one first end, and this heat tube capillary structure has one second end capillary even Tie this first end.

Implementing one, this housing cavity has an inner walls and defines one without capillary structure region, and this housing capillary is tied Structure is arranged on to be avoided in this inner walls without capillary structure region.

Implementing one, this housing capillary structure has one first link side and links this inner walls and one first free side To this housing cavity, this first thickness definition is between this first link side and this first free side；This heat tube capillary structure has Having one second link side to link the inner side of this heat pipe wall and one second free side to this heat pipe chamber, this second thickness definition exists Between this second link side and this second free side.

[accompanying drawing explanation]

Following graphic purpose is to make this utility model to be more easily understood, and can encyclopaedize those figures in this article Formula, and make it constitute the some of specific embodiment.Through specific embodiment herein and with reference to corresponding graphic, in order to Explain orally the specific embodiment of this utility model in detail, and in order to illustrate the action principle of utility model.

Fig. 1 is the perspective exploded view of this utility model；

Fig. 2 is the solid combination schematic diagram of this utility model；

Fig. 3 is the section view decomposing schematic representation of this utility model；

Fig. 4 is the section view combination schematic diagram of this utility model；

Fig. 5 figure is the close-up schematic view of the 4th figure；

Fig. 6 is the schematic diagram that this utility model is combined with fins group.

In accompanying drawing, the assembly representated by each sequence number is:

10 housings

101 top sides

102 bottom sides

103 sides

1031 openings

11 housing cavity

112 inner walls

1121 without capillary structure region

114 housing capillary structures

1141 first ends

1143 first link side

1144 first free sides

20 heat pipes

201 blind ends

202 open ends

203 heat pipe wall

Outside 2031

Inside 2032

204 heat pipe chambers

205 heat tube capillary structures

2051 second ends

2053 second link side

2054 second free sides

B1 the first thickness

B2 the second thickness

B3 the 3rd thickness

40 radiating fin groups

401 radiating fins.

[detailed description of the invention]

The above-mentioned purpose of this utility model and structure thereof and characteristic functionally, will give according to the embodiment of institute's accompanying drawings Explanation.

Refer to the perspective exploded view that Fig. 1 is this utility model；Fig. 2 is the solid combination signal of this utility model Figure；Fig. 3 is the section view decomposing schematic representation of this utility model；Fig. 4 is the section view combination schematic diagram of this utility model；Fig. 5 be Fig. 4 it Close-up schematic view.This utility model includes housing 10 and at least one heat pipe 20 as shown in the figure.This housing 10 is flat Heat transmission unit, for example, temperature-uniforming plate or flat plate heat tube, has a bottom side, top side 101, one 102 and side 103 ring sets Between this top side 101 and this bottom side 102.This side 103 offers at least one opening 1031, and the quantity of this opening 1031 coordinates should The quantity of heat pipe 20.

One housing cavity 11 is defined between this top side 101 and this bottom side 102 and this side 103.In this housing cavity 11 An accommodating working fluid (not shown) and a housing capillary structure 114, this working fluid such as but is not limited to pure water, inorganization Compound, alcohols, ketone, liquid metal, cold coal, organic compound or its mixture.This housing cavity 11 has an inner walls 112, this inner walls 112 defines one without capillary structure region 1121 this opening 1031 adjacent, and this housing capillary structure 114 is arranged This avoid this without in the inner walls 112 in capillary structure region 1121, and there is one first end 1141 to tying without capillary Structure region 1121.

This heat pipe 20 has blind end 201, open end 202 and a heat pipe wall 203.This heat pipe wall 203 has one Inside outside 2031 and one 2032, inside this 2032 define a heat pipe chamber 204 be positioned at this blind end 201 and open end 202 it Between and connect this open end 202, a heat tube capillary structure 205 is located at the inner side 2032 of this heat pipe wall 203 and from this heat pipe chamber 204 extend to this open end 202, and have one second end 2051 and be positioned at this open end 202.

The blind end 201 of aforementioned heat pipe 20 such as but is not limited to bending extension and prolongs to top or the level of this housing 10 Stretching, the open end 202 of this heat pipe 20 is plugged in this housing cavity 11 from the side 103 of this housing 10, so that this heat pipe chamber 204 connect this housing cavity 11 by this open end 202, and this heat tube capillary structure 205 capillary links this housing capillary structure 114, that is the first end 1141 capillary of this housing capillary structure 114 links the second end 2051 of this heat tube capillary structure 205.

Aforesaid housing capillary structure 114 have one first link side 1143 link this inner walls 112 and one first from By side 1144 in the face of this housing cavity 11.Aforesaid heat tube capillary structure 205 has one second link side 2053 and links this heat pipe The inner side 2032 of wall 203 and one second free side 2054 are in the face of this heat pipe chamber 204.This housing capillary structure 114 and heat pipe hair Fine texture 205 for example, sintered metal powders opisthosoma or mesh knitted body or groove or bundle stock fiber etc., for having mushy knot Structure is provided that capillary force drives this working-fluid flow.

" capillary link " refers to that the concrete dynamic modulus of this housing capillary structure 114 connects the concrete dynamic modulus of this heat tube capillary structure 205, makes Obtain capillary force to transmit from this heat tube capillary structure 205 or extend to this housing capillary structure 114, and the working fluid cooled down can To be back to this housing capillary structure 114 by this capillary force from this heat tube capillary structure 205 and then to return in housing cavity 11.

Furthermore, this housing capillary structure 114 defines one first thickness B1 in this first link side 1143 and this first freedom Between side 1144, this heat pipe wall 203 define one second thickness B2 outside this 2031 and this inside between 2032, this heat pipe capillary Structure 205 defines one the 3rd thickness B3 and second links between side 2053 and this second free side 2054 at this, and this housing capillary First thickness B1 of structure 114 adds the 3rd thickness of this heat tube capillary structure 205 equal to the second thickness of this heat pipe wall 203 B3, thereby makes this housing capillary structure 114 directly capillary to link with this heat tube capillary structure 205, will not produce thickness not Consistent or high low head problem causes and cannot capillary link.

To be illustrated, although represent the generally first thickness of this housing capillary structure 114 in this diagram implemented B1, but substitute one and implement, it is also possible to and only the first end 1141 of this housing capillary structure 114 is the first thickness B1, remaining Thickness more thin than this first thickness B1, so can reduce the space that housing cavity 11 is occupied by housing capillary structure 114, and This housing capillary structure 114 is made directly capillary to link with this heat tube capillary structure 205.

Please continue to refer to shown in Fig. 6, in the lump referring to figs. 1 to shown in Fig. 5, a radiating fin group 40 is serially connected on this heat pipe 20 And it being positioned at the top of housing 10, radiating fin group 40 includes that plurality of radiating fins 401 is spaced, in helping this heat pipe 20 Working fluid heat radiation.

Therefore, after the working fluid in housing cavity 11 absorbs heat and flashes to gas, flowed by the open end 202 of this heat pipe To this heat pipe chamber 204, then dispelling the heat by this radiating fin group 40, the working fluid after cooling becomes after liquid from this heat Pipe capillary structure 205 is back to this housing capillary structure 114 by capillary force, is then return in this housing cavity 11.

By above setting, this housing capillary structure 114 is made to link with the capillary of this heat tube capillary structure 205, with order The capillary force of this heat pipe chamber 204 and housing cavity 11 can be transmitted mutually or extend.

Only the above, the only the most feasible embodiment of this utility model, such as utilize this utility model above-mentioned Method, shape, structure, device change for it, all should be contained in the interest field of this case.

Claims (5)

1. a heat-sink unit, it is characterised in that including:

One housing, has a housing cavity, and this housing cavity content is provided with a housing capillary structure and a working fluid；

One heat pipe, has a blind end, an open end and a heat pipe wall, and this heat pipe wall has outside one and inside one, inside this Defining this open end of heat pipe chamber, a heat tube capillary structure is located at the inner side of this heat pipe wall and extends from this heat pipe chamber To this open end；

In wherein the open end of this heat pipe is plugged in this housing cavity, this heat pipe chamber connects this housing chamber by this open end Room, this heat tube capillary structure is that capillary links this housing capillary structure；

Described housing capillary structure partially or fully defines one first thickness, and this heat pipe wall defines one second thickness, this heat pipe hair Fine texture defines one the 3rd thickness, and this first thickness adds the 3rd thickness equal to this second thickness.

Heat-sink unit the most according to claim 1, it is characterised in that described housing capillary structure has one first end, should Heat tube capillary structure has one second end capillary and links this first end.

Heat-sink unit the most according to claim 1, it is characterised in that described housing cavity has an inner walls and defines one Region without capillary structure, and this housing capillary structure is arranged on and avoids in this inner walls without capillary structure region.

4. according to the heat-sink unit described in claims 1 to 3 any of which item, it is characterised in that described housing have a top side, One bottom side and side side ring are located between this top side and this bottom side, and this housing cavity is defined in this top side and this bottom side and this side Between.

Heat-sink unit the most according to claim 4, it is characterised in that the open end of described heat pipe is inserted from the side of this housing It is connected in this housing cavity.