CN207300942U - A kind of testing device for heat transferring performance of flat-plate type micro heat pipe - Google Patents
A kind of testing device for heat transferring performance of flat-plate type micro heat pipe Download PDFInfo
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- CN207300942U CN207300942U CN201621233375.3U CN201621233375U CN207300942U CN 207300942 U CN207300942 U CN 207300942U CN 201621233375 U CN201621233375 U CN 201621233375U CN 207300942 U CN207300942 U CN 207300942U
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Abstract
The utility model is a kind of testing device for heat transferring performance of flat-plate type micro heat pipe, and device includes operatively flat-plate type micro heat pipe, heating unit, condensing unit, fluid injection and vacuum extractor and temperature information harvester；Operatively flat-plate type micro heat pipe includes aluminum alloy frame, and transparent upper clamp plate, lower clamp plate, has the copper base of capillary structure, rubber washer and fastening bolt composition；Heating unit has adjustable voltage source, electrical bar, heat block and thermostat composition；Cooling device is made of constant temperature water tank and cooling block；Temperature signal collection device is then acquired each several part temperature of operatively micro heat pipe by thermocouple and its follow-up signal acquisition system.The utility model has the advantage of can carry out disassembly and assembly to the capillary structure of flat-plate heat pipe at any time, it is only necessary to which the capillary structure that flat-plate heat pipe just can be replaced by simple step realizes the heat transfer property test of multigroup flat-plate heat pipe；The precision for due to error caused by the factors such as other welding qualities, improving test can more be reduced by only replacing its capillary structure.
Description
Technical field
The utility model is used for adopting heat pipes for heat transfer performance detection field, more particularly to a kind of replaceable micro heat pipe internal capillary
The flat-plate type micro heat pipe testing device for heat transferring performance of structure.
Background technology
Super large-scale integration integrated level is high, can be small with heat dissipation area, and chip temperature significantly rises, and result in high
Heat flow density.The types of cooling such as traditional air-cooled and water cooling can not be met the requirements, thus the serious shadow of heat dissipation problem of electronic device
Its functional reliability and service life are rung, it is to restrict it to continue one of key issue of development to become.Traditional liquid-sucking core heat pipe
Due to volume it is fragile greatly the problems such as, it is difficult to meet high reliability and micromation requirement.Based on Working fluid phase changing heat transfer theory
Micro heat pipe is the effective way for solving the problems, such as chip cooling, small and can be with the tablet low-grade fever that better contact with of heat dissipation object
Pipe is the main flow direction of micro heat pipe development, and the flat-plate type micro heat pipe with gradient structure surface wet can significantly increase micro heat pipe
Working medium reflux capability, significant increase heat dissipation performance.
Among the developmental research of research tablet type micro heat pipe and the tablet type micro heat pipe with gradient wetting surface, need
Study the capillary structure of different wetting performance or the capillary structure of different wetting capability gradient distribution passes tablet type micro heat pipe
The influence of hot property, but at present the detection platform of micro heat pipe heat transfer property be substantially merely able to carried out fluid injection and encapsulation into
Product micro heat pipe carries out the test of heat transfer property.And for tablet type micro heat pipe, its method for packing is not perfect yet at present, packaging technology
It is relatively complicated.Lack at present in the test device of micro heat pipe it is a kind of can be directly to intact capillary knot be processed in copper base
Heat transfer property detection device of the structure in flat-plate type micro heat pipe, and in the micro heat pipe detection platform of Metal Substrate, mostly lack to micro-
The flow regime of liquid refrigerant is detected in heat pipe, but its analysis of Working fluid flow state for flat-plate type micro heat pipe heat conductivility
In play the role of it is especially prominent.
Therefore, it is necessary to provide a kind of welding that need not be complicated to micro heat pipe progress and injection process, and can facilitate
Replacing and grasping for liquid refrigerant flow regime in micro heat pipe can be observed at any time is carried out to the capillary structure inside micro heat pipe
Make formula flat-plate type micro heat pipe testing device for heat transferring performance.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, proposition is a kind of to carry out complexity to micro heat pipe
The capillary structure of inner wall, need to only be carried out the micro heat pipe that simple mechanical package just can be detected by welding and injection process
Testing device for heat transferring performance.
The another object of the utility model be to provide one kind quick and precisely can easily measure to different-shape and
Startup time, maximal heat transfer power, thermal resistance and the Working fluid flow shape of the flat-plate type micro heat pipe of the capillary structure of different wetting performance
The test device of condition.
The purpose of this utility model is achieved through the following technical solutions：
A kind of testing device for heat transferring performance of flat-plate type micro heat pipe includes operatively flat-plate type micro heat pipe, heating unit, condensation
Device, fluid injection and vacuum extractor and temperature signal collection device；Operatively flat-plate type micro heat pipe includes aluminum alloy frame, thoroughly
Bright upper clamp plate, lower clamp plate, has the copper base of capillary structure, rubber washer and fastening bolt composition；Heating unit has pressure-adjustable
Power supply, electrical bar, heat block and thermostat composition；Cooling device is made of constant temperature water tank and cooling block；Temperature signal collection
Device is then acquired each several part temperature of operatively micro heat pipe by thermocouple and its follow-up signal acquisition system.
The operatively flat-plate heat pipe, its by bolt successively by transparent upper clamp plate, rubber washer, aluminum alloy frame,
Rubber washer, the copper base with capillary structure, lower clamp plate connect.Aluminum alloy frame side is provided with aperture, for being inserted into
And fixed thermocouple and connection quick coupling, easy to the connection with subsequently vacuumizing circuit and liquid injection system.
The heating unit controls the power of electrical bar by pressure-adjustable AC power, and realizes electrical bar by temperature controller
Constant temperature warming.
The cooling device provides the recirculated cooling water of steady temperature to realize condensation block by constant temperature water tank to condensation block
Thermostatic control.
The vacuum extractor vacuum meter, small ball is with vacuum pump group into the component passes through above-mentioned quick coupling and low-grade fever
Pipe is attached, and carries out vacuumize process to operatively flat-plate heat pipe by vacuum pump, inside heat pipe is observed by vacuum meter
Vacuum, ball valve is closed when reaching the vacuum of needs and realizes the sealing of operatively micro heat pipe.
The priming device is made of small ball and graduated syringe, and the syringe can be by fast by repacking
Quick coupling connects with one end of ball valve, and the other end of ball valve is connected by quick coupling with operatively flat-plate type micro heat pipe, is passed through
Scale in syringe determine working medium amount number, open ball valve when irrigating working medium, treat to close ball valve after working medium perfusion, it is real
The sealing of existing operatively micro heat pipe.
A kind of heat transfer property test method of flat-plate type micro heat pipe, this method are：Heat block and condensation block are together fixed on
On heat-insulating shield base, and operatively flat-plate heat pipe is fixed on condensing on block by heat block by fastening bolt, in order to strengthen
Its contact with operatively flat-plate type micro heat pipe, heat-conducting silicone grease is scribbled in the place that heat block, condensation block are contacted with flat-plate heat pipe.
Priming device and vacuum extractor are attached by quick coupling and operatively flat-plate type micro heat pipe, completed to micro heat pipe
Working medium irrigates the ball valve with closing pumped vacuum systems and liquid injection system after vacuumizing, and micro heat pipe is in the state of sealing, and
The detection implemented by the vacuum meter in pumped vacuum systems to the vacuum inside micro heat pipe and vapour pressure, by thermocouple
In insertion aluminum alloy frame and bend thermocouple probe and be that it is in contact with the copper base with capillary structure, pass through what is built
Signal acquiring system monitors each several part temperature of micro heat pipe in real time, and measures the micro heat pipe of micro heat pipe most with this
Big heat output and thermal resistance, working medium that can be to micro heat pipe under a power by the transparent upper clamp plate of operatively flat-plate type micro heat pipe
Flow condition is observed, and the spiral shell of operatively flat-plate type micro heat pipe can be unclamped after the heat transfer property measurement of one group of micro heat pipe of completion
Bolt, replaces its copper base with capillary structure, and repeating the above process just can be without by the cumbersome step pair such as welded encapsulation
Multigroup test that heat transfer property is carried out with different capillary structure copper base micro heat pipes.
Compared with prior art, the utility model has the following advantages：
(1) the utility model may not need by the process welded and encapsulated directly on copper base in flat-plate type micro heat pipe
The performance of capillary structure is tested.Test process is simple and convenient efficiently.
(2) numerous experimental groups only needs to replace the copper base with capillary structure, does not replace each component in micro heat pipe,
It can save due to the influence during welded encapsulation and the processing and manufacturing of low-grade fever tube cover plate to micro heat pipe heat transfer property, exclude real
Error during testing.
(3) steam inside micro heat pipe can also be pressed into by vacuum meter in addition to equipped with temperature acquisition system in device
Row detection, and being detected in real time to micro heat pipe internal working medium by transparent upper cover plate in real time, can preferably probe into not
With influence of the capillary structure to micro heat pipe heat transfer property.
Brief description of the drawings
Fig. 1 flat-plate type micro heat pipe testing device for heat transferring performance structure diagrams.
Fig. 2 is operatively flat-plate type micro heat pipe structure diagram.
In Fig. 1：1. operatively flat-plate type micro heat pipe；2. heating unit；3. cooling device；4. temperature signal collection system
System；21. heat block；31. condense block；41. data collecting card；18. thermocouple.
In fig. 2：11. lower clamp plate；12. the copper base with capillary structure；13. rubber washer；14. transparent upper clamp plate；
15. fastening bolt；16. quick coupling；17. aluminum alloy frame；.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment：
A kind of testing device for heat transferring performance of flat-plate type micro heat pipe, includes operatively flat-plate type micro heat pipe 1, adds as shown in Figure 1
Thermal 2, condensing unit 3, fluid injection and vacuum extractor and temperature signal collection device 4；Operatively flat-plate type micro heat pipe
Structure includes aluminum alloy frame 17 as shown in Figure 2, and transparent upper clamp plate 14, lower clamp plate 11, has the copper base 12 of capillary structure, rubber
Rubber gasket 13 and fastening bolt 15 form；Heating unit is by adjustable voltage source 22, electrical bar, heat block 12 and thermostat group
Into；Cooling device is made of constant temperature water tank 32 and condensation block 31；Temperature signal collection device then passes through thermocouple 18 and its data
Capture card 41 is acquired each several part temperature of operatively micro heat pipe.
Comprised the following steps using this flat-plate type micro heat pipe testing device for heat transferring performance：
(1) by fastening bolt 15 successively by transparent upper clamp plate 14, rubber washer 13, aluminum alloy frame 17, rubber washer
13rd, the copper base 12 with capillary structure, the connection of lower clamp plate 11 are fixed.Aluminium alloy side is inserted into thermocouple 18 and quick coupling 16
Frame side, for detecting flat-plate heat pipe various places inside temperature and connection priming device and vacuum extractor, bends thermocouple 18
Probe, can be contacted with copper base, complete operatively flat-plate heat pipe assembling.
(2) priming device and vacuum extractor are connected in operatively flat-plate heat pipe by quick coupling, open note
The ball valve of liquid device, ball valve sealing heat pipe is closed after injecting quantitative working medium, is opened vacuum extractor ball valve and is started to vacuumize, passes through
Vacuum inside vacuum meter observation micro heat pipe, closes its ball valve after micro heat pipe reaches suitable vacuum, completes to low-grade fever
The fluid injection of pipe and vacuumize.
(3) above-mentioned completion fluid injection is installed to the operatively flat-plate type micro heat pipe 1 vacuumized equipped with heat block 21 and cold
It is fixed in the platform of grumeleuse 31 and by bolt to it, heat block 21 and condensation block 31 and operatively flat-plate type micro heat pipe 1
Heat-conducting silicone grease is scribbled on the surface of contact.
(4) start heating unit 2, cooling device 3 and temperature signal collection device 4, set the coolant water temperature of constant temperature water tank
Spend micro heat pipe in the hot-fluid observed temperature signal acquiring system for changing micro heat pipe evaporator section for 15 ° of adjusting voltage controller power sources 22 everywhere
Temperature change, show that the heat pipe of flat-plate type micro heat pipe starts the performances such as time, isothermal performance, maximal heat transfer power and thermal resistance.And lead to
The mobility status for crossing observer liquid refrigerant draws the reason for changing flat-plate type micro heat pipe heat conductivility, completes one group of micro heat pipe heat transfer
The measurement of performance.
(5) unclamp fastening bolt 15 and replace its copper base 12 with capillary structure, repeat above-mentioned (1)-(4) step pair
Lower panel is tested.
Claims (2)
- A kind of 1. testing device for heat transferring performance of flat-plate type micro heat pipe, it is characterised in that：Operatively flat-plate type micro heat pipe（1）Bottom one End and heating unit（2）Connection, the other end and condensing unit（3）Connection, fluid injection and vacuum extractor pass through quick coupling (16) Connection, temperature signal collection device (4) are connected by thermocouple (18)；The structure of operatively flat-plate type micro heat pipe, by fastening spiral shell Bolt (15) successively by transparent upper clamp plate (14), rubber washer (13), aluminum alloy frame (17), rubber washer (13), there is capillary The copper base (12) of structure, lower clamp plate (11) connection are fixed；Heating unit is by adjustable voltage source (22) and electrical bar, heat block (21) and thermostat is connected；Cooling device is connected by constant temperature water tank (32) with cooling block (31) by hose；Temperature is believed Number harvester then believes each several part temperature of operatively micro heat pipe by connecting data collecting card (41) by thermocouple (18) Number it is acquired.
- 2. the testing device for heat transferring performance of a kind of flat-plate type micro heat pipe according to claim 1, it is characterised in that described to grasp The fastening bolt can be unclamped to the copper base with capillary structure by making the copper base with capillary structure of formula flat-plate type micro heat pipe It is replaced, its heat transfer property just can be tested without carrying out welding encapsulation to copper base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233375.3U CN207300942U (en) | 2016-11-14 | 2016-11-14 | A kind of testing device for heat transferring performance of flat-plate type micro heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233375.3U CN207300942U (en) | 2016-11-14 | 2016-11-14 | A kind of testing device for heat transferring performance of flat-plate type micro heat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207300942U true CN207300942U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621233375.3U Active CN207300942U (en) | 2016-11-14 | 2016-11-14 | A kind of testing device for heat transferring performance of flat-plate type micro heat pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596629A (en) * | 2016-12-14 | 2017-04-26 | 广东工业大学 | Heat transfer performance testing apparatus of flat-plate micro heat pipe |
| CN109406574A (en) * | 2019-01-10 | 2019-03-01 | 广东工业大学 | A kind of flat-plate heat pipe test device and system |
-
2016
- 2016-11-14 CN CN201621233375.3U patent/CN207300942U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596629A (en) * | 2016-12-14 | 2017-04-26 | 广东工业大学 | Heat transfer performance testing apparatus of flat-plate micro heat pipe |
| CN109406574A (en) * | 2019-01-10 | 2019-03-01 | 广东工业大学 | A kind of flat-plate heat pipe test device and system |
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