CN207399748U - Heat pipe for conductive heat dissipation device - Google Patents
Heat pipe for conductive heat dissipation device Download PDFInfo
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- CN207399748U CN207399748U CN201721530998.1U CN201721530998U CN207399748U CN 207399748 U CN207399748 U CN 207399748U CN 201721530998 U CN201721530998 U CN 201721530998U CN 207399748 U CN207399748 U CN 207399748U
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- flow channel
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- dissipation device
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Abstract
The utility model provides a kind of heat pipe for conductive heat dissipation device, including water inlet pipe, outlet pipe, coldplate and multiple tube bodies, adjacent first flow and second flow channel are provided in coldplate, first flow and second flow channel sequentially pass through first pair of plate, connecting plate and second pair of plate, one end of microchannel pore is connected by the first opening with second flow channel, the other end of microchannel pore is connected by the second opening with second flow channel, phase-change working substance circulates in the second flow channel and multiple microchannel pores, coolant is flowed into the first flow by the water inlet pipe and is flowed out by the outlet pipe, to take away the heat of the phase-change working substance.It exchanges heat in this way, phase-change working substance can only be realized by the outer wall of second flow channel with the coolant in first flow, so as to reduce the thermal resistance between phase-change working substance and coolant, increases heat transfer coefficient, improve heat transfer efficiency.The heat of phase power device can be pulled away in time, so as to ensure that the normal operating temperature of power device.
Description
Technical field
The utility model belongs to the technical field of heat management more particularly to a kind of heat pipe for conductive heat dissipation device.
Background technology
In fields such as electric vehicle, industrial electronic, consumer electronics, computer room, data servers, equipment or device are in work
Substantial amounts of heat can be generated when making, if this heat cannot scatter away in time, can make the temperature of equipment or environment temperature it is continuous on
It rises, high temperature can seriously affect operation stability and the service life of equipment, it is therefore desirable to carry out various heat managements so that equipment is suitable
It works within the temperature range of conjunction.Heat management includes heat transfer and heat dissipation, and one of which heat transfer unit (HTU) is porous heat pipe.Porous heat
Pipe is a kind of heat-transfer device, is not a kind of radiator, in terms of heat pipe is applied to heat dissipation, it is necessary in the heat dissipation of heat pipe
End is installed by certain radiator.
It is typically to paste heat conductive silica gel in radiating end to be bonded with cooled plate in the prior art, by cold in cooled plate
The heat of heat pipe is passed by but the cycling of liquid.There are larger thermal resistances for this mode so that the efficiency of heat dissipation substantially reduces, and is
Improving radiating efficiency needs to increase the area of cooled plate or increases the flow of liquid.
Utility model content
Technical problem to be solved in the utility model is：Pass through for the radiating end and cooled plate of heat pipe in the prior art
Heat conductive silica gel stickup is big there are thermal resistance, and the low technological deficiency of radiating efficiency provides a kind of heat pipe for conductive heat dissipation structure.
In order to solve the above technical problems, the utility model embodiment provides a kind of heat pipe for conductive heat dissipation device, including water inlet
Pipe, outlet pipe, coldplate and multiple tube bodies are provided with adjacent first flow and second flow channel in the coldplate；
The coldplate includes first pair of plate, second pair of plate and connecting plate, the first flow and second flow channel and wears successively
First pair of plate, connecting plate and second pair of plate are crossed, multiple first openings, institute are provided on the downside surface of first pair of plate
It states and multiple second openings is provided on the downside surface of second pair of plate, multiple first openings and multiple second openings one
One corresponds to, one end insertion first opening of the tube body, corresponding second opening of other end insertion of the tube body；
Be formed with multiple microchannel pores in the tube body, one end of the microchannel pore by the described first opening with it is described
Second flow channel connects, and the other end of the microchannel pore is connected by the described second opening with the second flow channel, phase-change working substance
Circulate in the second flow channel and multiple microchannel pores, coolant by the water inlet pipe flow into the first flow and by
The outlet pipe outflow, to take away the heat of the phase-change working substance.
Optionally, first pair of plate, second pair of plate and connecting plate are integrally formed.
Optionally, the multiple fluid channels separated by multiple barriers are formed in the first flow.
Optionally, multiple barriers are arranged in parallel, and multiple fluid channels are vertical with the second flow channel.
Optionally, the first flow is arranged on the outside of the second flow channel.
Optionally, the water inlet pipe is arranged on the described one end of first pair of backboard from the connecting plate, and the outlet pipe is set
One end close to the water inlet pipe on the described one end of second pair of backboard from the connecting plate, first pair of plate is put to be provided with
For closing the first baffle of the second flow channel, it is provided with to seal close to one end of the outlet pipe on second pair of plate
Close the second baffle of the second flow channel.
Optionally, the tube body includes the first vertical section, the second vertical section and is arranged on first vertical section and second
Horizontal segment between vertical section, first vertical section are plugged in first opening, and second vertical section is plugged on institute
It states in the second opening.
Optionally, first opening is the first stepped groove, and First terrace is formed on the inner wall of first stepped groove,
First stepped groove is connected to the second flow channel, the first vertical section sealing be plugged in first stepped groove and with
The First terrace abuts；
Second opening forms second step face for the second stepped groove on the second stepped groove inner wall, and described second
Stepped groove is connected to the second flow channel, and the second vertical section sealing is plugged in second stepped groove and with described second
Step surface abuts.
Optionally, the horizontal segment of multiple tube bodies is concordantly set.
Optionally, it is provided on the downside of the connecting plate and fills column, the column that fills is connected with the second flow channel, described
Column is filled after the completion of the phase-change working substance fills from outer closures.
The heat pipe for conductive heat dissipation device that the utility model embodiment provides, be provided in coldplate adjacent first flow and
Second flow channel, first flow and second flow channel sequentially pass through first pair of plate, connecting plate and second pair of plate, one end of microchannel pore and lead to
It crosses the first opening to connect with second flow channel, the other end of microchannel pore is connected by the second opening with second flow channel, phase-change working substance
Circulate in the second flow channel and multiple microchannel pores, coolant by the water inlet pipe flow into the first flow and by
The outlet pipe outflow, to take away the heat of the phase-change working substance.In this way, phase-change working substance only passes through the outer wall of second flow channel
It realizes and exchanges heat with the coolant in first flow, so as to reduce the thermal resistance between phase-change working substance and coolant, increase heat transfer
Coefficient improves heat transfer efficiency.The heat liquid band that can be cooled in time for the power device that phase-change working substance absorbs is walked, so as to protect
The normal operating temperature of power device has been demonstrate,proved, has extended its service life.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram for the heat pipe for conductive heat dissipation device that one embodiment of the utility model provides；
Fig. 2 is the schematic diagram of its coldplate of the heat pipe for conductive heat dissipation device of one embodiment of the utility model offer；
Fig. 3 is the schematic diagram of its tube body of the heat pipe for conductive heat dissipation device of one embodiment of the utility model offer；
Fig. 4 is the schematic cross-section of its tube body of the heat pipe for conductive heat dissipation device of one embodiment of the utility model offer；
Fig. 5 is that the schematic diagram for heat pipe for conductive heat dissipation device its coldplate that one embodiment of the utility model provides is (another to regard
Angle)；
Fig. 6 is the enlarged drawing at a in Fig. 5；
Fig. 7 is the enlarged drawing at b in Fig. 5.
Reference numeral in specification is as follows：
1st, water inlet pipe；
2nd, outlet pipe；
3rd, coldplate；31st, first flow；311st, barrier；312nd, fluid channel；32nd, second flow channel；33rd, first pair of plate；332、
First stepped groove；333rd, First terrace；34th, second pair of plate；342nd, the second stepped groove；343rd, second step face；35th, connect
Plate；351st, column is filled；36th, second baffle；
4th, tube body；41st, microchannel pore；42nd, the first vertical section；43rd, the second vertical section；44th, horizontal segment.
Specific embodiment
The technical issues of in order to solve the utility model, technical solution and advantageous effect are more clearly understood, below
With reference to accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figures 1 to 7, one embodiment of the utility model provide heat pipe for conductive heat dissipation device, including water inlet pipe 1,
Outlet pipe 2, coldplate 3 and multiple tube bodies 4 are provided with adjacent first flow 31 and second flow channel 32, institute in the coldplate 3
Coldplate 3 is stated to wear successively including first pair of plate, 33, second pairs of plates 34 and connecting plate 35, the first flow 31 and second flow channel 32
First pair of plate 33, connecting plate 35 and second pair of plate 34 are crossed, multiple are provided on the downside surface of first pair of plate 33
One opening, is provided with multiple second openings on the downside surface of second pair of plate 34, one end insertion of the tube body 4 described the
One opening, corresponding second opening of other end insertion of the tube body 4.As shown in figure 4, it is formed in the tube body 4 more
A microchannel pore 41, one end of the microchannel pore 41 is connected by the described first opening with the second flow channel 32, described micro-
The other end of access opening 41 is connected by the described second opening with the second flow channel 32, and phase-change working substance is in the second flow channel 32
And circulation, coolant flow into the first flow 31 and by the water outlet by the water inlet pipe 1 in multiple microchannel pores 41
Pipe 2 flows out, to take away the heat of the phase-change working substance.
Above-mentioned phase-change working substance is a kind of phase-change material, the characteristic with low boiling point, the high coefficient of heat transfer, to pass through vaporization
The heat of absorbed power device, and pass through liquidation exothermic reaction, the heat of power device is quickly exported.The phase-change working substance is selected from
Ethylene glycol, acetone, methanol, refrigerant (R134a, R410A etc.), the mixture of one or more of which in ammonia.Coolant is
Water or anti-icing fluid etc..
In one embodiment, described first pair of plate, 33, second pairs of plates 34 and connecting plate 35 are integrally formed.
In some other embodiment, described first pair of plate, 33, second pairs of plates 34 and connecting plate 35 can also be individually into
After type, it is integrally connected by the way of welding.
In one embodiment, as shown in Fig. 2, the fluid channel that formation is separated by multiple barriers 311 in the first flow 31
312, multiple barriers 311 are arranged in parallel, and multiple fluid channels 312 are vertical with the second flow channel 32.Multiple miniflows
The setting in road 312 reduces the temperature difference of coolant in first flow 31, makes the temperature of the coolant in the first flow 31
It reaches unanimity, so as to reduce the heat transfer of coolant itself, increases the heat transfer coefficient between coolant and phase-change working substance,
Improve heat transfer efficiency.
In one embodiment, the first flow 31 is arranged on the outside of the second flow channel 32, so as to make coolant
The heat of the phase-change working substance of absorption can be shed in time, in this way, the heat of phase-change working substance is outwardly passed step by step by coolant
It passs, so as to enhancing heat transfer, improves heat transfer efficiency.
However, in some other embodiment, the second flow channel 32 is arranged on the outside of the first flow 31, this
When, when power device is contacted with the first flow 31, a part for the heat of power device is directly taken away by coolant, and one
It is taken away again by coolant after being absorbed by phase-change working substance part.
As shown in Figure 1, the water inlet pipe 1 is arranged on one end that first pair of plate 33 deviates from the connecting plate 35, it is described
Outlet pipe 2 is arranged on one end that second pair of plate 34 deviates from the connecting plate 35, goes out on first pair of plate 33 described in
The first baffle that one end of water pipe 2 is provided with to close the second flow channel 32 (is not shown in figure, structure and second baffle phase
Seemingly), it is provided with to close the second gear of the second flow channel 32 close to one end of the outlet pipe 2 on second pair of plate 34
Plate 36, so as to make to form the phase-change working substance space of closing in the second flow channel 32.In this way, the water inlet pipe 1 and it is described go out
Water pipe 2 can be connected directly with the coldplate 3, eliminate the connection water inlet pipe 1 and the outlet pipe 2 and the coldplate
3 intermediate device makes structure compacter.
In a preferred embodiment, as shown in figure 4, the tube body 4 includes the first vertical section 42, the second vertical section 43 and sets
The horizontal segment 44 between 42 and second vertical section 43 of the first vertical section is put, first vertical section 42 is plugged on described
In one opening, second vertical section 43 is plugged in second opening.
In one embodiment, as shown in Figures 5 to 7, described first it is open as the first stepped groove 332, first ladder
Forming First terrace 333 on the inner wall of slot 332, first stepped groove 332 is connected to the second flow channel 32, and described first
The sealing of vertical section 42 is plugged in first stepped groove 332 and is abutted with the First terrace 333, and second opening is
Second stepped groove 342 forms second step face 343 on second stepped groove, 342 inner wall, and second stepped groove 342 connects
To the second flow channel 32, the sealing of the second vertical section 43 be plugged in second stepped groove 342 and with described second
Terrace 343 abuts.The horizontal segment 44 of multiple tube bodies 4 is concordantly set, to form the accommodating space of power device.
When above-mentioned heat pipe for conductive heat dissipation device is used cooperatively with power device, the horizontal segment 44 is hot junction, described the
One vertical section 42 and the second vertical section 43 are cold end, and power device is contacted with the horizontal segment 44, and the phase-change working substance absorbs work(
The heat of rate device undergoes phase transition (liquid becomes gaseous state), and the phase-change working substance after phase transformation reduces due to its density by the horizontal segment
44 rise to the second flow channel 32 or vertical through described second by the horizontal segment 44 through first vertical section 42 flowing
43 flowing of section rises to the second flow channel 32.In this way, the phase-change working substance after vaporization in the second flow channel 32 with described the
Heat exchange occurs for the coolant in one runner 31, so that the heat of the phase-change working substance after vaporization is pulled away.Heat occurs with coolant
The phase-change working substance of exchange is liquid by gaseous state variation, and is dropped back into the horizontal segment 44, again the heat of absorbed power device,
Self-loopa of the phase-change working substance between cold end and hot junction is realized according to this.The heat pipe for conductive heat dissipation device of the present embodiment, not only dissipates
Hot area increases, but also since the presence of two sections of cold ends (the first vertical section 42, the second vertical section 43) is so that phase-change working substance
It is also improved in the flow rate of the phase-change working substance enclosure space, so that heat exchange efficiency greatly improves.
In a preferred embodiment, as shown in figure 4, the microchannel pore 41 is dentation, dentalation can be described micro-
In the case of the aperture of access opening 41 is not increased, the contact area of increase phase-change working substance and the microchannel pore 41 further carries
Rise heat conduction efficiency.On the other hand, the dentalation of the madial wall of the microchannel pore 41 is similar to capillary structure so that described
Microchannel pore 41 forms similar pore, and it is vertical by first vertical section 42 and second to be conducive to the phase-change working substance after liquefaction
Section 43 is back to the horizontal segment 44, to form Xun Huan.
Above-mentioned heat pipe for conductive heat dissipation device, phase-change working substance stream in multiple microchannel pores 41 and second flow channel 32
It is dynamic, in this way, increasing the space of phase-change working substance Xun Huan, phase-change working substance and the heat exchange area of coolant are added, so as to increase
Heat exchange efficiency.
As shown in Figure 1, the downside of the connecting plate 35, which is provided with, fills column 351, the column 351 that fills leads to the connection
Road connects, described to fill column 351 after the completion of the phase-change working substance fills from outer closures.
The heat pipe for conductive heat dissipation device that above-described embodiment provides is provided with adjacent first flow and second in coldplate
Road, first flow and second flow channel sequentially pass through first pair of plate, connecting plate and second pair of plate, one end of microchannel pore and pass through first
Opening is connected with second flow channel, and the other end of microchannel pore is connected by the second opening with second flow channel, and phase-change working substance is described
Circulation in second flow channel and multiple microchannel pores, coolant by the water inlet pipe flow into the first flow and by it is described go out
Water pipe flows out, to take away the heat of the phase-change working substance.In this way, phase-change working substance only can be with first by the outer wall of second flow channel
Coolant in runner realizes heat exchange, so as to reduce the thermal resistance between phase-change working substance and coolant, increases heat transfer coefficient, carries
High heat transfer efficiency.The heat liquid band that can be cooled in time for the power device that phase-change working substance absorbs is walked, so as to ensure that work(
The normal operating temperature of rate device, extends its service life.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of heat pipe for conductive heat dissipation device, which is characterized in that described including water inlet pipe, outlet pipe, coldplate and multiple tube bodies
Adjacent first flow and second flow channel are provided in coldplate；
The coldplate includes first pair of plate, second pair of plate and connecting plate, and the first flow and second flow channel sequentially pass through institute
First pair of plate, connecting plate and second pair of plate are stated, is provided with multiple first openings on the downside surface of first pair of plate, described the
Multiple second openings are provided on the downside surface of two pairs of plates, multiple first openings and multiple second openings one are a pair of
Should, one end insertion first opening of the tube body, corresponding second opening of other end insertion of the tube body；
Multiple microchannel pores are formed in the tube body, one end of the microchannel pore passes through the described first opening and described second
Flow passage, the other end of the microchannel pore are connected by the described second opening with the second flow channel, and phase-change working substance is in institute
Circulation in second flow channel and multiple microchannel pores is stated, coolant flows into the first flow and by described by the water inlet pipe
Outlet pipe flows out, to take away the heat of the phase-change working substance.
2. heat pipe for conductive heat dissipation device as described in claim 1, which is characterized in that first pair of plate, second pair of plate and company
Fishplate bar is integrally formed.
3. heat pipe for conductive heat dissipation device as described in claim 1, which is characterized in that be formed in the first flow by multiple
Multiple fluid channels that barrier separates.
4. heat pipe for conductive heat dissipation device as claimed in claim 3, which is characterized in that multiple barriers are arranged in parallel, and more
A fluid channel is vertical with the second flow channel.
5. heat pipe for conductive heat dissipation device as described in claim 1, which is characterized in that the first flow is arranged on described second
The outside of runner.
6. heat pipe for conductive heat dissipation device as described in claim 1, which is characterized in that the water inlet pipe is arranged on described first pair
The one end of backboard from the connecting plate, the outlet pipe is arranged on the described one end of second pair of backboard from the connecting plate, described
It is provided with to close the first baffle of the second flow channel close to one end of the water inlet pipe on first pair of plate, described second pair
One end on plate close to the outlet pipe is provided with to close the second baffle of the second flow channel.
7. heat pipe for conductive heat dissipation device as described in claim 1, which is characterized in that the tube body includes the first vertical section, the
Two vertical sections and the horizontal segment being arranged between first vertical section and the second vertical section, first vertical section are plugged on institute
It states in the first opening, second vertical section is plugged in second opening.
8. heat pipe for conductive heat dissipation device as claimed in claim 7, which is characterized in that first opening is the first stepped groove,
First terrace is formed on the inner wall of first stepped groove, first stepped groove is connected to the second flow channel, and described the
The sealing of one vertical section is plugged in first stepped groove and is abutted with the First terrace；
Second opening is the second stepped groove, and second step face, second ladder are formed on the second stepped groove inner wall
Slot is connected to the second flow channel, the second vertical section sealing be plugged in second stepped groove and with the second step
Face abuts.
9. heat pipe for conductive heat dissipation device as claimed in claim 7, which is characterized in that the horizontal segment of multiple tube bodies is put down
It is neat to set.
10. heat pipe for conductive heat dissipation device as described in claim 1, which is characterized in that be provided with and fill on the downside of the connecting plate
Column is filled, the column that fills is connected with the second flow channel, and the column that fills seals after the completion of the phase-change working substance fills from outside
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530998.1U CN207399748U (en) | 2017-11-15 | 2017-11-15 | Heat pipe for conductive heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721530998.1U CN207399748U (en) | 2017-11-15 | 2017-11-15 | Heat pipe for conductive heat dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207399748U true CN207399748U (en) | 2018-05-22 |
Family
ID=62323617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721530998.1U Active CN207399748U (en) | 2017-11-15 | 2017-11-15 | Heat pipe for conductive heat dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207399748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864595A (en) * | 2017-11-15 | 2018-03-30 | 深圳市迈安热控科技有限公司 | Heat pipe for conductive heat dissipation device |
| CN113451679A (en) * | 2020-03-27 | 2021-09-28 | 比亚迪股份有限公司 | Cooling system |
-
2017
- 2017-11-15 CN CN201721530998.1U patent/CN207399748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864595A (en) * | 2017-11-15 | 2018-03-30 | 深圳市迈安热控科技有限公司 | Heat pipe for conductive heat dissipation device |
| CN113451679A (en) * | 2020-03-27 | 2021-09-28 | 比亚迪股份有限公司 | Cooling system |
| CN113451679B (en) * | 2020-03-27 | 2022-11-11 | 比亚迪股份有限公司 | Cooling system |
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