CN105180695B - Loop heat pipe cooler - Google Patents
Loop heat pipe cooler Download PDFInfo
- Publication number
- CN105180695B CN105180695B CN201510737829.4A CN201510737829A CN105180695B CN 105180695 B CN105180695 B CN 105180695B CN 201510737829 A CN201510737829 A CN 201510737829A CN 105180695 B CN105180695 B CN 105180695B
- Authority
- CN
- China
- Prior art keywords
- gear
- top board
- chamber
- heat pipe
- loop heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses a loop heat pipe cooler, and aims to provide a loop pipe cooler that can prevent working medium from drying up and instable fluctuation, and improve stability and safety during operation of high heating flux devices. An evaporator comprises a closed chamber composed of a housing and a bottom board, the bottom board is provided with a plurality of evaporation grooves which form an evaporation chamber, the upper portion of the closed chamber is separated into an expansion chamber and a compensation chamber via a septum, liquid intake cores are arranged at the periphery of the compensation chamber and between the compensation chamber and the evaporation grooves, a compensation pipe communicating the compensation chamber with the expansion chamber is disposed in the compensation chamber, a top board is arranged in the expansion chamber, the top board is fixedly connected to the septum via a spring, two sides of the top boards are respectively fixed to the housing via bellows, and an expansion modulation mechanism is mounted on the top board. The evaporation chamber is connected to an inlet of a condenser via a steam connecting pipe, and an outlet of the condenser is connected to the compensation chamber via a liquid connecting pipe. The loop heat pipe cooler can improve stability and safety during operation of high heating flux devices.
Description
Technical field
The present invention relates to Thermal Power Engineering technical field, more particularly to a kind of loop that can successfully manage thermal shock and high load capacity
Heat-pipe radiator.
Background technology
With in high-power LED illumination, large server and aerospace field high heat flux device technology fly
Speed development, the heat flow density of single equipment is from original 0.1-10W/cm2Magnitude towards 10-1000/cm2Or even higher amount
Level is doubled and redoubled.Conventional loop heat-pipe radiator belongs to passive type chiller, and its vaporizer is produced merely by wick
Capillary draft maintain the transmittance process that liquid refrigerant is transmitted to transformation interface, tackle small-power radiate when operation stability
Problem is still serious, but when varying load condition or high load capacity operating mode is tackled, and due to heat flow density rapid fluctuation or steeply rises,
Vapor chamber steam pressure head with thermic load increase and rises, when thermic load more than certain value when, conventional loop heat-pipe radiator according to
The circulation drive ram produced by single wick tends not to the operating mode for tackling mutation and the hot-fluid for steeply rising, imbibition
Core can produce dry-cutout phenomenon due to sudden load and the hot-fluid for steeply rising, to the safe and effective of high heat flux device
Operation produces harm.Additionally, heating surface thermic load cannot be matched all the time with circulation industrial quality, the running resistance of system is larger
And be heated the leakage thermal phenomenon towards compensated cavity also can be more serious, therefore its radiating effect and operation stability are not satisfactory, sternly
During weight, or even the operation safety for jeopardizing high heat flux device itself.
The content of the invention
The purpose of the present invention is to be directed to technological deficiency present in prior art, and providing one kind can avoid producing working medium
Dry and erratic fluctuation, lifts the stability of high heat flux device operation and the loop heat pipe radiator of safety.
To realize that the technical scheme that the purpose of the present invention is adopted is：
A kind of loop heat pipe radiator, including condenser and vaporizer, the vaporizer includes being made up of shell and base plate
Closed cavity, be provided with multiple evaporation conduits on the base plate, multiple evaporation conduits composition evaporation cavities, the closing chamber
The top of body is separated into expansion chamber and compensated cavity, the periphery of the compensated cavity and the compensated cavity and the evaporator tank by dividing plate
Wick is provided between road, the compensation intracavity is provided with the compensation pipe of the connection compensated cavity and expansion chamber, the expansion
Intracavity is provided with top board, and the top board is fixedly connected by spring with the dividing plate, and the both sides of the top board pass through respectively ripple
Pipe is fixed with the shell, and expansion governor motion is provided with the top board；The evaporation cavity is by steam connection tube road and institute
The import connection of condenser is stated, the outlet of the condenser is connected by fluid connection tube road with the compensated cavity, forms loop.
Insulation chambers are provided with the inside of the shell.
The expansion governor motion includes push rod, motor, drive mechanism and the leading screw being fixedly connected with the top board, described
Leading screw is threadedly coupled with the push rod, and detection means, the outfan of the detection means are provided with the heating surface of the base plate
It is connected with the electric machine controller, controls the motor and drive the push rod to drive the top board by the expansion drive mechanism
Move up and down.
The push rod both sides are provided with chute, and the shell coordinates with the slide.
The drive mechanism includes first gear, second gear, and the first gear is connected with the output shaft of the motor,
The first gear is engaged with the second gear, and the second gear is fixedly connected with the leading screw, the first gear
With diameter greater than the diameter of the second gear.
The motor, first gear, second gear and leading screw are installed in waterproof casing, and the push rod passes through the waterproof
Casing is fixedly connected with the top board.
The detection means is temperature or pressure transducer.
Compared with prior art, the invention has the beneficial effects as follows：
1st, loop heat pipe radiator of the invention drives phase by the design of expansion chamber, compensated cavity and expansion governor motion
The working medium stored in expansion chamber is aspirated in the corrugated tube of connection and top board extruding, and the working medium for forcing expansion intracavity storage enters compensation
In chamber or force the working medium that suction is located at compensation intracavity to be back to the expansion intracavity, supplement or exclude the circulation in blood circulation
Working medium amount so that the working medium circulation amount in blood circulation all the time with the change of the load of heat or thermic load for putting on heating surface
Speed keeps synchronous change.With this, passive type is controlled by active mode and cools down heat dissipation equipment, overcome conventional heat pipe in high load capacity
Run and in the face of during thermal shock, loop heat pipe evaporator is also easy to produce the technical barrier of dry and erratic fluctuation, to lift height
The stability of heat flow density device operation and safety, and can significantly expand range of application and the field of loop circuit heat pipe.
2nd, the expansion governor motion in loop heat pipe radiator of the invention can be using automatically controlling, by being arranged at
The temperature or pressure-measuring-point of heating surface are stated, the temperature of heating surface or operation pressure in high heat flux device running are obtained in time
Power distributed intelligence, when thermic load produces change or fluctuates, can controlled motor drive and be arranged at top board on expansion chamber, use
Convenient, reliability is high.
Description of the drawings
Fig. 1 show the structural representation of the loop heat pipe radiator of the present invention；
Fig. 2 show the drive part schematic diagram of loop heat pipe radiator.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
The schematic diagram of loop heat pipe radiator of the present invention is as shown in figure 1, including condenser 10 and vaporizer, the vaporizer
Including the closed cavity being made up of shell 1 and base plate 2, multiple evaporation conduits 8, multiple evaporations are provided with the base plate 2
Conduit 8 constitutes evaporation cavity 9, and the top of the closed cavity is separated into expansion chamber 25 and compensated cavity 11, the benefit by dividing plate 20
Repay chamber 11 periphery and the compensated cavity 11 and the evaporation conduit 8 between be provided with wick 5, arrange in the compensated cavity 11
There is the compensation pipe 12 of the connection compensated cavity 11 and expansion chamber 25, top board 14, the top board 14 are installed in the expansion chamber 25
It is fixedly connected with the dividing plate 20 by spring 15, the both sides of the top board 14 are solid with the shell 1 by corrugated tube 13 respectively
It is fixed, expansion governor motion is installed on the top board 14.The steam (vapor) outlet 4 of the evaporation cavity 9 is by steam connection tube road 3 and institute
The import connection of condenser 10 is stated, the outlet of the condenser 10 passes through the liquid on fluid connection tube road 6 and the compensated cavity 11
Import 7 connects, and forms loop.
In order to avoid heat scatters and disappears, the inner side of the shell 1 is provided with insulation chambers 16.
In the present embodiment, the expansion governor motion includes the push rod 23 being fixedly connected with the top board 14, motor 18, passes
Motivation structure and leading screw 19, the leading screw 19 is threadedly coupled with the push rod 23, and detection dress is provided with the heating surface of the base plate 2
26 are put, the outfan of the detection means 26 is connected with the controller of the motor 18, control the motor 18 by the expansion
Drive mechanism drives the push rod 23 to drive the top board 14 to move up and down.In the present embodiment, the detection means 26 is temperature
Or pressure transducer.
In order to improve upper and lower reliability of operation, the both sides of the push rod 23 are provided with chute 24, the shell 1 and the cunning
Groove 24 is slidably matched.
Drive mechanism can adopt various structures.In the present embodiment, its schematic diagram is as shown in Fig. 2 the drive mechanism bag
First gear 21, second gear 22 are included, the first gear 21 is connected with the output shaft of the motor 18, the first gear 21
Engage with the second gear 22, the second gear 22 is fixedly connected with the leading screw 19, the diameter of the first gear 21
More than the diameter of the second gear 22, step-up drive is realized.
The motor 18, first gear 21, second gear 22 and leading screw 19 are installed in waterproof casing 17, the push rod 23
It is fixedly connected with the top board 14 through the waterproof casing 17.
After the thermic load that the external world puts on the heating surface of the base plate 2 works, the loop heat pipe radiator of the present invention is opened
Begin to start and gradually begin setting up stable operation circulation, heating amount is transferred to described by the conduit 8 on the heating surface
The lower surface of wick 5, the applying of thermic load causes working medium in the vapor chamber 9 to produce phase transformation evaporation, produces after phase transformation evaporation
Steam along the conduit 8 enter the steam connection tube road 3, while the thermic load for putting on the heating surface is taken away, phase
Become the steam for producing into the condenser 10 and complete condensation wherein, discharge entrained heat and be re-condensed into liquid
State working medium, the liquid refrigerant after condensation continues the onwards transmission in the fluid connection tube road 6, in the compensated cavity 11.
Because the heating surface of the base plate constantly leaves loop circuit heat pipe with the liquid refrigerant near the wick 5 because phase transformation is evaporated,
In the presence of the capillary draft of the wick 5, the liquid refrigerant in the compensated cavity 11 is towards transformation interface --- and it is described
Conduit 8 is transmitted with the interface of the wick 5, supplements the liquid refrigerant that the vapor chamber 9 is left because of phase transformation evaporation.
When the thermic load for putting on the heating surface gradually increases, phase transformation evaporation rate can be because of heat in the vapor chamber 9
The increase of load and accelerate, and the capillary draft of wick has certain limit.When thermic load increase to a certain extent when, it is general
Logical loop heat pipe radiator can because evaporation rate be more than wick in liquid refrigerant supplement speed cause the vapor chamber 9 and
Dry-out is produced in the wick 5, this is breakneck for the normal operation of heat dissipation equipment.The present invention is by arranging
Expansion chamber 25 and corresponding controlling organization, when the pressure or temperature sensor 26 measure the heating surface temperature rise of the base plate
When very fast, the motor 18 will be driven to drive the first gear 21 to rotate, and drive the second gear 22 to rotate, due to described
Push rod 23 is connected with the leading screw 19, and the push rod 23 is subject to the spacing of the chute 24, in the rotation of the second gear
Under drive, the top board 23 is defined and does linear motion downwards, and the top board 23 will therewith do linear motion downwards, on the top
Under the drive of plate 23, the corrugated tube 13 is extruded working medium in the expansion chamber 25 together with the top board 23, and working medium exists
It is squeezed described in tailing edge and compensates pipe 12 into the compensated cavity 11, compensates and dry up because temperature rises the loop circuit heat pipe for comparatively fast causing
Phenomenon, makes blood circulation possess the working medium circulation amount being adapted with thermic load all the time.
When the thermic load for putting on the baseplate heated face is reduced, temperature or pressure transducer experience corresponding signal
Afterwards, drive the motor 18 to rotate backward, drive second gear 22 to be rotated in the opposite sense by the first gear 21, drive
The top board 23 does and produce therewith in reverse linear ascending motion, the expansion chamber 25 negative pressure and by the compensation pipe 12 from institute
The suction liquid refrigerant of compensated cavity 11 is stated, effective working medium circulation amount is accordingly reduced in blood circulation, makes to possess all the time in circulation line
The working medium circulation amount matched with thermic load, reduces the larger adverse effect of the circulation resistance caused due to interference working medium.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of loop heat pipe radiator, it is characterised in that including condenser and vaporizer, the vaporizer include by shell and
The closed cavity of base plate composition, is provided with multiple evaporation conduits, multiple evaporation conduit composition evaporation cavities, institute on the base plate
The top for stating closed cavity is separated into expansion chamber and compensated cavity, the periphery of the compensated cavity and the compensated cavity and institute by dividing plate
State and wick be provided between evaporation conduit, the compensation intracavity is provided with the compensation pipe of the connection compensated cavity and expansion chamber,
The expansion intracavity is provided with top board, and the top board is fixedly connected by spring with the dividing plate, the both sides difference of the top board
Fixed with the shell by corrugated tube, expansion governor motion is installed on the top board；The evaporation cavity is connected by steam
Pipeline is connected with the import of the condenser, and the outlet of the condenser is connected by fluid connection tube road with the compensated cavity,
Form loop.
2. loop heat pipe radiator according to claim 1, it is characterised in that be provided with thermal insulation on the inside of the shell
Chamber.
3. loop heat pipe radiator according to claim 1 and 2, it is characterised in that the expansion governor motion include with
Push rod, motor, drive mechanism and leading screw that the top board is fixedly connected, the leading screw is threadedly coupled with the push rod, the bottom
Detection means is installed, the outfan of the detection means is connected with the electric machine controller on the heating surface of plate, control is described
Motor drives the push rod to drive the top board to move up and down by the drive mechanism.
4. loop heat pipe radiator according to claim 3, it is characterised in that the push rod both sides are provided with chute, institute
State shell to coordinate with the slide.
5. loop heat pipe radiator according to claim 3, it is characterised in that the drive mechanism include first gear,
Second gear, the first gear is connected with the output shaft of the motor, and the first gear is engaged with the second gear, institute
State second gear to be fixedly connected with the leading screw, the diameter with diameter greater than the second gear of the first gear.
6. loop heat pipe radiator according to claim 5, it is characterised in that the motor, first gear, second gear
It is installed in waterproof casing with leading screw, the push rod is fixedly connected through the waterproof casing with the top board.
7. loop heat pipe radiator according to claim 3, it is characterised in that the detection means is that temperature or pressure are passed
Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737829.4A CN105180695B (en) | 2015-11-04 | 2015-11-04 | Loop heat pipe cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737829.4A CN105180695B (en) | 2015-11-04 | 2015-11-04 | Loop heat pipe cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105180695A CN105180695A (en) | 2015-12-23 |
| CN105180695B true CN105180695B (en) | 2017-04-12 |
Family
ID=54902956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737829.4A Expired - Fee Related CN105180695B (en) | 2015-11-04 | 2015-11-04 | Loop heat pipe cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105180695B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106376219B (en) * | 2016-09-26 | 2017-09-29 | 郑州航空工业管理学院 | Heat abstractor for big data all-in-one |
| CN107036474B (en) * | 2017-06-14 | 2019-05-17 | 天津商业大学 | A kind of rotary loop circuit heat pipe evaporating radiator |
| CN107084636B (en) * | 2017-06-14 | 2019-07-09 | 天津商业大学 | A kind of loop circuit heat pipe evaporating radiator |
| CN108321448B (en) * | 2018-03-05 | 2023-07-28 | 西南交通大学 | Efficient rail transit energy storage thermal management system and thermal management method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013011A (en) * | 2007-02-05 | 2007-08-08 | 中山大学 | Multiple-pass self-regulating loop heat pipe device |
| CN102101350A (en) * | 2010-12-24 | 2011-06-22 | 宁波双林模具有限公司 | Precision mold for small-spiral-angle duplex gear |
| CN103705122A (en) * | 2013-12-30 | 2014-04-09 | 深圳市北鼎晶辉科技股份有限公司 | Water dispenser with cup supporting plate lifting mechanism |
| CN104684245A (en) * | 2015-02-28 | 2015-06-03 | 华为技术有限公司 | Single plate, electronic device and heat dissipation method for single plate |
| CN205102646U (en) * | 2015-11-04 | 2016-03-23 | 天津商业大学 | Loop thermotube heat radiator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100132925A1 (en) * | 2008-12-03 | 2010-06-03 | Donald Carson Lewis | Partable Thermal Heat Pipe |
-
2015
- 2015-11-04 CN CN201510737829.4A patent/CN105180695B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013011A (en) * | 2007-02-05 | 2007-08-08 | 中山大学 | Multiple-pass self-regulating loop heat pipe device |
| CN102101350A (en) * | 2010-12-24 | 2011-06-22 | 宁波双林模具有限公司 | Precision mold for small-spiral-angle duplex gear |
| CN103705122A (en) * | 2013-12-30 | 2014-04-09 | 深圳市北鼎晶辉科技股份有限公司 | Water dispenser with cup supporting plate lifting mechanism |
| CN104684245A (en) * | 2015-02-28 | 2015-06-03 | 华为技术有限公司 | Single plate, electronic device and heat dissipation method for single plate |
| CN205102646U (en) * | 2015-11-04 | 2016-03-23 | 天津商业大学 | Loop thermotube heat radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105180695A (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105180695B (en) | Loop heat pipe cooler | |
| CN107454797B (en) | A kind of pump drive quarter-phase circuit device for high fever stream dissipation from electronic devices | |
| CN104519722B (en) | Control device of liquid cooling and the server with the device | |
| CN103629963B (en) | Multi-scale capillary core flat plate loop heat pipe type heat-dissipation device | |
| CN106954373A (en) | The heat control system that a kind of active two-phase loop is combined with phase-transition heat-storage | |
| WO2008095404A1 (en) | Loop heat pipe device with multi-channel adjusted by itself | |
| CN205680674U (en) | High power electronic chip array heat radiation module | |
| CN103200803A (en) | Loop heat pipe cooling device with pool boiling function | |
| CN102777581B (en) | Wind power generating set heating-cooling device | |
| CN110456893A (en) | A kind of cooling cabinet of enhanced immersion type | |
| CN205102646U (en) | Loop thermotube heat radiator | |
| CN108916163A (en) | Oil tank cooling system and its cooling control method | |
| CN207939940U (en) | A kind of container to be radiated using super heat-conductive pipe | |
| CN207530657U (en) | A kind of linear electric motor primary component of band isolation cooling structure | |
| CN204576313U (en) | The permanent low temperature automatic control device of a kind of electronic equipment | |
| CN116631734A (en) | Efficient heat dissipation oil immersed transformer | |
| CN104613802B (en) | The evaporator and heat abstractor of a kind of loop circuit heat pipe | |
| CN105246302A (en) | Heat pipe radiator | |
| CN115717843A (en) | Loop heat pipe type aircraft equipment cabin heat dissipation device combined with phase change materials | |
| CN2681218Y (en) | Liquid cooling type heat sink | |
| CN101977489A (en) | Cooling device and method for heating elements | |
| CN109149013A (en) | The pump of semiconductor temperature for electric vehicle drives the two-phase circulatory system and its control method | |
| CN213811889U (en) | Gravity circulation type phase change temperature control device | |
| TWM514714U (en) | Heat-dissipating system | |
| CN101022717A (en) | Liquid self-loop composite heat pipe radiating device used for electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20181104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |