CN208736220U - A kind of heat pipe - Google Patents
A kind of heat pipe Download PDFInfo
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- CN208736220U CN208736220U CN201821040592.XU CN201821040592U CN208736220U CN 208736220 U CN208736220 U CN 208736220U CN 201821040592 U CN201821040592 U CN 201821040592U CN 208736220 U CN208736220 U CN 208736220U
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- tube body
- evaporator section
- heat pipe
- heat
- capillary structure
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Abstract
The utility model discloses a kind of heat pipe, including tube body, there is sealed chamber in tube body, working media is filled in sealed chamber, the inner wall of tube body is equipped with capillary structure layer；Tube body includes condensation segment and evaporator section, and evaporator section is flat, and evaporator section includes that upper and lower capillary structure layer is bonded the heat source area being integrated.In the above manner, capillary structure is integrated the tube body in evaporator section heat source area at fitting up and down in the utility model, the thickness of heat pipe evaporator section can be reduced, and it can avoid evaporator section caused by steam pressure and expand, to which heat pipe evaporator section is relatively thin, heat resistanceheat resistant expansion character is excellent, good heat-transfer, and cheap.
Description
Technical field
The utility model relates to heat transfer unit (HTU)s, and in particular to a kind of heat pipe.
Background technique
Heat pipe is the heat transfer element that heat transfer is realized by the phase transformation of therein working fluid.In the evaporation of heating heat pipe
End, the working fluid in tube core are taken away heat by thermal evaporation, which is the evaporation latent heat of working fluid, and steam is from center
Channel flows to the condensation end of heat pipe, condenses into liquid, while releasing latent heat, under the action of capillary force, liquid reflux to evaporation
End.A closed circulation is completed in this way, so that a large amount of heat is passed to condensation end from fire end.
The heat dissipation of LED automobile head lamp needs to make two sheet lasers as far as possible close to reflector focus to meet light distribution requirements, therefore
Opposite heat tube thickness requirement is very thin (1.5mm or less), simultaneously because the high temperature of working environment also requires heat pipe to have very strong anti-expansion
Deformation performance.
Traditional flattening heat pipe section is rectangle made of being flattened as cylindrical type, at high temperature due to the work of inner vapor pressure
With meeting dilatancy, influences to contact, to influence heat-transfer effect, or even bad chip can be squeezed.Traditional solution is to increase heat
The pipe wall thickness of pipe, to increase anti-expansion character.While conventional heat pipe is flattened, steam channel also reduces simultaneously, thus shadow
Ring steam-condensate circulating and heat transmission.Therefore, ultra-thin conflicting between the two with heat power for conventional heat pipe, nothing
Method accomplishes to make the best of both worlds.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of heat pipe, and the heat pipe evaporator section is very thin, heat resistanceheat resistant expansion
It has excellent performance, good heat-transfer, and cheap.
The technical scheme adopted by the utility model is a kind of heat pipe, including tube body, the tube body is interior to have seal chamber
Room, the sealed chamber is interior to be filled with working media, and the inner wall of the tube body is equipped with capillary structure layer, and the tube body includes cold
Solidifying section and evaporator section, the evaporator section is flat, and the evaporator section includes that upper and lower capillary structure layer is bonded the heat being integrated
Source region.
According to one specific embodiment of the utility model, the evaporator section is located at one end of the tube body.
According to one specific embodiment of the utility model, the evaporator section is equipped with evaporation channel, the evaporation channel with it is described
Sealed chamber connection.
According to one specific embodiment of the utility model, the evaporator section is located at the middle part of the tube body, the condensation section
In the both ends of the tube body.
According to one specific embodiment of the utility model, the evaporator section is equipped with evaporation channel, and the evaporation channel is connected to institute
State sealed chamber.
According to one specific embodiment of the utility model, the circumferentially hollow connection seal chamber in the heat source area of the evaporator section
Room.
According to one specific embodiment of the utility model, the heat source area with a thickness of 0.4-1.5mm.
According to one specific embodiment of the utility model, the capillary structure layer is sintering copper mesh layers or sintered copper bisque.
According to one specific embodiment of the utility model, the condensation segment is cylinder.
According to one specific embodiment of the utility model, the tube body is copper pipe.
According to one specific embodiment of the utility model, the working media is water, methanol or ammonium hydroxide.
The advantageous effects of the utility model are: the utility model provides a kind of heat pipe, evaporator section heat source in the heat pipe
Capillary structure layer is integrated the tube body in area at fitting up and down, can reduce the thickness of heat pipe evaporator section, and pass through the capillary in heat source area
Structure sheaf, which is bonded intensity, can avoid the expansion of evaporator section caused by steam pressure, so that heat pipe evaporator section is very thin, heat resistanceheat resistant expansion character
It is excellent, good heat-transfer, and it is cheap.
Detailed description of the invention
Illustrate the technical scheme in the embodiment of the utility model in order to clearer, it below will be to required in embodiment description
Attached drawing to be used briefly describes.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model heat pipe；
Fig. 2 is the cross section structure schematic diagram of II-II line along Fig. 1；
Fig. 3 is the cross section structure schematic diagram of III-III line along Fig. 1；
Fig. 4 is the manufacturing process structural schematic diagram of one embodiment of the utility model heat pipe.
Specific embodiment
It is carried out with reference to embodiments with technical effect of the attached drawing to the design of the utility model, specific structure and generation clear
Chu is fully described by, to fully understand the purpose of this utility model, scheme and effect.It is understood that described herein
Specific embodiment is only used for explaining the utility model, rather than the restriction to the utility model.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The descriptions such as upper and lower, left and right used in the utility model are only each composition portion of the utility model in opposite figure
Divide for mutual alignment relation, and term " includes " and " having " and their any deformations, it is intended that covering is non-exclusive
Include.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant
Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit
Ground and implicitly understand, the features in the embodiments and the embodiments of the present application can be mutual group in the absence of conflict
It closes.
It is the structural schematic diagram of one embodiment of the utility model heat pipe also referring to Fig. 1, Fig. 2 and Fig. 3, Fig. 1, Fig. 2 is
The cross section structure schematic diagram of II-II line along Fig. 1, Fig. 3 are the cross section structure schematic diagrams of III-III line along Fig. 1.
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment heat pipe includes tube body 10, and tube body 10 can be good by thermal conductivity such as copper, aluminium
Metal material be made, a sealed chamber 13 is formed in tube body 10, mainly as steam diffusion admittance.Filling in sealed chamber 13
There is working media 14, is usually evacuated in sealed chamber 13 or close to vacuum, so that working media 14 is by thermal evaporation,
Working media 14 can be the low-boiling liquid such as water, methanol, ammonium hydroxide.
The inner wall of tube body 10 is equipped with capillary structure layer 15, and capillary structure layer 15 is flowed mainly as 14 liquid of working media
Channel.In the present embodiment, capillary structure layer 15 is sintering capillary structure layer, is concretely sintered copper mesh layers or sintered copper bisque,
15 thermal conductivity of capillary structure layer is good and flow resistance is small, can guide working media flow, swimmingly with enhancing radiating efficiency.In addition,
Capillary structure layer 15 can also be other structures, such as can be woven and be formed by copper, stainless steel or composite material bunch.
As shown in Figures 2 and 3, tube body 10 includes condensation segment 11 and evaporator section 12, and evaporator section 12 is flat, and evaporator section
12 include that upper and lower capillary structure layer 15 is bonded the heat source area 121 being integrated.Specifically, the condensation segment 11 of heat pipe and evaporator section 12 divide
Set on the both ends of tube body 10, and the heat source area 121 of evaporator section 12 is located at the middle part of 12 tube body of evaporator section, and thickness is generally 0.4-
1.5mm；Heat source area 121 is circumferentially with the evaporation channel 122 being connected to sealed chamber 13, in order to the stream of vapour-liquid in tube body 10
Logical circulation and heat transmission.
The fitting of capillary structure layer 15 is integrated the tube body in heat source area 121 up and down, on the one hand can reduce heat pipe evaporator section 12
Thickness keeps it thinner；On the other hand, it can avoid steam pressure by the fitting intensity of 121 capillary structure layer 15 of heat source area to cause
Evaporator section expansion.
In use, when the heat source area 121 of evaporator section 12 and heat source contact, capillary structure layer 15 has biggish
Endotherm area and good conductivity of heat, so that heat is quickly passed to working media 14, the heat absorption evaporation of working media 14, phase transformation
At steam state, the circumferential evaporation channel 122 in heat source area 121 is then flowed by the hole inside capillary structure layer, then be diffused into close
Chamber 13 is sealed, and then is transferred to condensation segment 11, heat is discharged in condensation segment 11 and condenses into liquid, then pass through capillary structure layer 15
Liquid working media " drawing " is gone back to the heat source area 121 of evaporator section 12 by capillary force, phase transformation circulation is then carried out, so that heat is quick
Ground passes, and completes the heat dissipation to heat source.
In the present embodiment, evaporator section 12 is located at one end of tube body 10, and heat source area 121 is located at 12 tube body of evaporator section thereon
Middle part, 121 tube body of heat source area is circumferentially provided with the evaporation channel 122 being connected to sealed chamber 13, so as to make heat source area 121
14 fluid of working media in capillary structure layer 15 absorbs heat after evaporation, around diverging flow, steam flowing in sealed chamber 13
Property is good, and radiating efficiency can be improved.
In other embodiments, evaporator section 12 can also be set to the middle part of tube body 10, and condensation segment 11 is divided into the two of tube body 10
End, 10 inner cavity chamber of tube body can be divided into two sealed chambers 13 by the heat source area 121 of evaporator section 12；Or 12 two sides of evaporator section
Chamber sealing.Specifically, heat source area 121 can be set to the middle part of 12 tube body of evaporator section, and evaporator section 12 is equipped with connection two
Two evaporation channels 122 of side cavity；Or heat source area 121 can be set to the side of 12 tube body of evaporator section, the other side is equipped with connection
The evaporation channel 122 of 12 liang of side cavities of evaporator section.And the case where 10 one end of tube body is located at for evaporator section 12, heat source area 121
It can be using similar setting.
In addition, can also arrange adiabatic section between evaporator section and condensation segment according to using needs.
In one embodiment, 12 tube body of evaporator section is flat structure, and 11 tube body of condensation segment can be set as cylindrical, thus
The contact area of heat dissipation can be increased, improve radiating efficiency.In other embodiments, 11 tube body of condensation segment can also be as the case may be
It is set as other shapes.
The utility model heat pipe is fabricated by specific manufacturing method, referring specifically to asking Fig. 4, Fig. 4 to be that this is practical
The manufacturing process structural schematic diagram of one embodiment of new heat pipe.The manufacturing method of the present embodiment heat pipe specifically comprises the following steps:
1) a hollow tube body is provided.Tube body can be made of the good metal material of the thermal conductivity such as copper, aluminium, and tube body usually selects
With round tube, but it can according to circumstances select square tube or other shapes tube body.In the present embodiment, tube body selects circular copper pipe, such as Fig. 4
In shown in (I).
2) capillary structure layer is set in the inside of tube body.
Specifically, necking down processing first is carried out to tube body, i.e., reduced the diameter of tube body one end, in order to subsequent by center
Aligning arbor is positioned when stick insertion tube body carries out filling out powder, thus usually tube body one end is contracted to internal diameter less than or equal to center
The outer diameter of stick.After processing is completed, intracorporal processing fragment is managed in removal, and cleaning removes the spots such as water in wall, oil film and washing solvent,
And dry, necking down tube body is obtained, as shown in (II) in Fig. 3.
One center bar is provided, is inserted into inside round tube, is positioned using the neck reduced on tube body, such as (III) institute in Fig. 3
Show；Then capillary structure raw material is taken to be filled in the gap between center bar and tube body.Wherein, copper can be selected in capillary structure raw material
The metal-powders such as powder.Filling process can shake powder on vibration powder machine by vibration powder machine, by capillary structure raw material be filled into center bar with
Between tube wall.Then vacuum atmosphere sintering furnace can be used to be sintered tube body under 900-1050 degrees celsius, until capillary structure
Raw material is integrated with inboard wall of tube body sintering.It finally extracts center bar out, forms capillary structure layer on the inner wall of tube body.
3) determine that the condensation segment of tube body, the heat source area of evaporator section and evaporator section, the tube body in heat source area impose machining
The flat of upper and lower capillary structure layer fitting is made, is then sintered heat source area tube body until the capillary structure layer sintering being bonded up and down
It is integrated, as shown in (IV) in Fig. 3.
4) working media is injected into tube body, then is vacuumized, sealed.Specifically, tube body big end can be pressed from both sides first with mold
Flat sealing, as shown in (V) in Fig. 3；And the suitable working media of injection in backward tube body, then vacuumize and degasification；Finally, can
Instantaneously melt degasification head using argon arc welding, to achieve the purpose that sealing, as shown in (VI) in Fig. 3, obtains finished product heat pipe.
In other embodiments, necking down process can also be cancelled, and by the way that location structure or its other party are arranged on center bar
Formula, so that center bar can be accurately positioned using center bar when filling out powder setting capillary structure layer on the inner wall of tube body.
Certainly, in other embodiments, can also pre-fabricated capillary structure, then by sintering or other modes be fixed to pipe
On internal wall, so as to form capillary structure layer on inboard wall of tube body.
By heat pipe obtained by above method, the capillary structure layer up and down of heat source area tube body fits into one on evaporator section
Body, can reduce the thickness of heat pipe evaporator section, and can avoid evaporator section caused by steam pressure and expand, thus heat pipe evaporator section compared with
Thin, heat resistanceheat resistant expansion character is excellent, good heat-transfer, and cheap, is bonded production requirement.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by described claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (10)
1. a kind of heat pipe, which is characterized in that including tube body, there is sealed chamber, filling in the sealed chamber in the tube body
There is working media, the inner wall of the tube body is equipped with capillary structure layer, and the tube body includes condensation segment and evaporator section, the evaporation
Section is flat, and the evaporator section includes that upper and lower capillary structure layer is bonded the heat source area being integrated.
2. heat pipe according to claim 1, which is characterized in that the evaporator section is located at one end of the tube body.
3. heat pipe according to claim 2, which is characterized in that the evaporator section is equipped with evaporation channel, the evaporation channel
It is connected to the sealed chamber.
4. heat pipe according to claim 1, which is characterized in that the evaporator section is located at the middle part of the tube body, described cold
Solidifying section is located at the both ends of the tube body.
5. heat pipe according to claim 4, which is characterized in that the evaporator section is equipped with evaporation channel, the evaporation channel
It is connected to the sealed chamber.
6. heat pipe according to claim 1, which is characterized in that the heat source area with a thickness of 0.4-1.5mm.
7. heat pipe according to claim 1, which is characterized in that the capillary structure layer is sintering copper mesh layers or sintered copper powder
Layer.
8. heat pipe according to claim 1, which is characterized in that the condensation segment is cylinder.
9. heat pipe according to claim 1, which is characterized in that the tube body is copper pipe.
10. heat pipe according to any one of claims 1 to 7, which is characterized in that the working media is water, methanol or ammonia
Water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821040592.XU CN208736220U (en) | 2018-07-03 | 2018-07-03 | A kind of heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821040592.XU CN208736220U (en) | 2018-07-03 | 2018-07-03 | A kind of heat pipe |
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| Publication Number | Publication Date |
|---|---|
| CN208736220U true CN208736220U (en) | 2019-04-12 |
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ID=66024840
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821040592.XU Active CN208736220U (en) | 2018-07-03 | 2018-07-03 | A kind of heat pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981434A (en) * | 2018-07-03 | 2018-12-11 | 火丁智能照明（珠海）有限公司 | A kind of heat pipe and its manufacturing method |
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2018
- 2018-07-03 CN CN201821040592.XU patent/CN208736220U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981434A (en) * | 2018-07-03 | 2018-12-11 | 火丁智能照明（珠海）有限公司 | A kind of heat pipe and its manufacturing method |
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