CN104034753B - Method for detecting heat dissipating property of metal heat dissipation device and testing device thereof - Google Patents
Method for detecting heat dissipating property of metal heat dissipation device and testing device thereof Download PDFInfo
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- CN104034753B CN104034753B CN201410286343.9A CN201410286343A CN104034753B CN 104034753 B CN104034753 B CN 104034753B CN 201410286343 A CN201410286343 A CN 201410286343A CN 104034753 B CN104034753 B CN 104034753B
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 161
- 239000002184 metal Substances 0.000 title claims abstract description 161
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 140
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 239000006185 dispersion Substances 0.000 claims description 42
- 238000010438 heat treatment Methods 0.000 claims description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 37
- 229910052802 copper Inorganic materials 0.000 claims description 37
- 239000010949 copper Substances 0.000 claims description 37
- 239000010410 layer Substances 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 28
- 230000005855 radiation Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000004458 analytical method Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 239000011449 brick Substances 0.000 claims description 10
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
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- 238000000926 separation method Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 7
- 230000000704 physical effect Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 20
- 238000000465 moulding Methods 0.000 description 20
- 229910045601 alloy Inorganic materials 0.000 description 19
- 229910000861 Mg alloy Inorganic materials 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 4
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- 229910000838 Al alloy Inorganic materials 0.000 description 3
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- 238000011105 stabilization Methods 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 238000007493 shaping process Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a method for detecting the heat dissipating property of a metal heat dissipation device and a testing device thereof. The method is characterized in that a detected heat dissipation device is arranged in a cavity, a heated end of the detected heat dissipation device is attached with a steady temperature-controllable heat source to raise the temperature of the heat dissipation device, an airflow cooling heat-dissipating device with controllable temperature and adjustable flow rate is arranged at the heat dissipation part of the heat dissipation device, and the temperature of airflows flowing through the heat dissipation device and heated by the heat dissipation device is recorded; when the heat dissipation device is heated and cooled stably, the temperature of the stably heated airflows represents the comprehensive heat dissipation property of the heat dissipation device, that is, the higher the stable temperature of the heated air flows is, the better of the comprehensive heat dissipation property of the heat dissipation device is under the constant heat source with the same temperature and the same cooling condition, therefore, the comprehensive heat dissipation property of the heat dissipation device is represented and estimated; according to the method, the complex heat dissipating process and the contribution of the physical property parameters of the heat dissipating metal and the structural characteristics of the heat dissipation device to the heat dissipating property of the heat dissipation device are comprehensively considered.
Description
Technical field
The present invention relates to a kind of material heat dispersion assessment and method of testing and device, more particularly to a kind of heat dissipation metal
The heat dispersion method of testing of material and device, are applied to device cooling technique field.
Background technology
Developing rapidly now with electronic product, the quick popularization of led Display Technique and all kinds of integrated chip power
Continuous increase, heat dissipation problem had become as an important problem, becomes the bottleneck that electronic product development is difficult to break through.
And at this stage, for radiating original paper test also and imperfection, research both domestic and external at present is concentrated mainly on material thermal conductivity
In the measurement of measurement and thermal diffusion coefficient, but the Thermal Synthetic Testing Platform for multi-form radiating element does not also have
The very professional research and development of system.In the middle of actual application, by the combination property of people's often device deeply concerned,
And the not such theoretical value of thermal conductivity.But at present for laboratory, research and development department and detection department, not one kind side
Method and device can be used for detecting and assess various for manufacturing heat sinks electronic products part, metal or radiating element finished product
Comprehensive heat dispersion.
Content of the invention
In order to solve prior art problem, it is an object of the invention to overcoming the shortcomings of that prior art exists, provide one kind
The method of detection heat dissipation metal device heat dispersion and its test device, using the analogy method similar to practical situation, will answer
Miscellaneous radiation processes, the physical parameter of heat radiating metal and the architectural feature of radiating element etc. consider, by specified point
Temperature survey, thus reach characterize and assessment radiating element comprehensive heat dispersion.
To achieve the above object of the invention, the design of the invention is:
Detected radiating element is placed in a cavity so as to heating end is fitted with a temperature-controllable steady thermal source makes to dissipate
Thermal device temperature raises, and given radiating element radiator portion one temperature-controllable flow adjustable air-flow cooling radiating element, with
Shi Jilu flows through radiating element the gas flow temperature being heated by radiating element, when radiating element is heated and reaches stable with cooling,
Characterize the comprehensive heat dispersion quality of radiating element by the height of heated airflow temperature when stablizing, that is, in identical temperature constant
Under thermal source and equal cooling condition, during heated airflow temperature stabilization, the comprehensive heat dispersion of the more high then radiating element of temperature is better.Cause
This, the present invention can realize sign and assess the purpose of the comprehensive heat dispersion of radiating element.
The design created according to the invention described above, the present invention adopts following technical proposals:
A kind of method of detection heat dissipation metal device heat dispersion, heat dissipation metal device to be measured is placed in the cavity of closing
Interior, so that the heating end of heat dissipation metal device to be measured is fitted with the steady thermal source of temperature-controllable, make heat dissipation metal device to be measured
Temperature raises, then with temperature-controllable and the adjustable air-flow of flow cools down radiating element by the radiator portion of heat dissipation metal device to be measured
It is connected, so that the heat that the radiator portion of heat dissipation metal device to be measured distributes is collected by air-flow cooling radiating element completely, simultaneously
Record flows through heat dissipation metal device to be measured the gas flow temperature by heat dissipation metal device to be measured heating, when heat dissipation metal device to be measured
Be heated when reaching stable with cooling, the comprehensive of heat dissipation metal device to be measured is characterized by the height of heated airflow temperature when stablizing
Close heat dispersion.
As currently preferred technical scheme, record flows through heat dissipation metal device to be measured and by heat dissipation metal device to be measured
During the gas flow temperature of heating, using the heating end being respectively arranged at heat dissipation metal device to be measured and colling end, nearby flow area is divided
The temperature data that the temperature acquisition point of not setting obtains.
The temperature that the controlled steady thermal source of said temperature produces is preferably adjustable in the range of 30 ~ 500 DEG C.
In the cavity of closing, area of space preferably near heat dissipation metal device radiator portion to be measured, air-flow cools down
The gas flow temperature that radiator passes through heat dissipation metal device radiator portion to be measured is preferably adjustable in the range of 10 ~ 50 DEG C, and makes
Obtain air flow rate preferably adjustable in the range of 50 ~ 150l/h.
Heat dissipation metal device to be measured preferably employs fin or the metal bar for manufacturing radiating element.
Implement the method testing device that the present invention detects heat dissipation metal device heat dispersion, including the device cavity of closing
With temperature analysis detecting system, device cavity by heat insulation wall be divided into two parts heat obstruct separate space, formed left chamber
Body and right-hand member cavity, heat dissipation metal device to be measured is placed in device cavity, and make heat dissipation metal device to be measured heating end and
Radiator portion is located in left end cavity and right end chamber body respectively, and temperature analysis detecting system is by thermal source, temperature sensor and data
Acquisition and recording analyser is constituted, and thermal source is located in the cavity space at heating end place of heat dissipation metal device to be measured, metal to be measured
The heating end of radiating element and thermal source fit, and so that the temperature of heat dissipation metal device to be measured is raised, temperature sensor at least includes
Two, one of temperature sensor is arranged in left chamber body, and other in which temperature sensor is arranged in right end chamber body,
Measure the heating end of heat dissipation metal device to be measured and the temperature of radiator portion respectively, in left chamber body, thermal source adopts a series of
Resistance wire, the heat that resistance wire generates passes through to copper coin radiation transmission, then passes through copper coin being heated to heat dissipation metal device to be measured
End carry out conduction of heat, the heat insulation wall between left end cavity and right-hand member cavity is made up of zirconium oxide brick bat or ceramic material, every
The embedded groove being matched with heat dissipation metal device peripheral shape to be measured and size is dug on hot body of wall, by heat dissipation metal device to be measured
Closely knit embedded heat insulation wall, temperature analysis detecting system also includes air-flow cooling radiator, dissipating heat dissipation metal device to be measured
Heat part is connected with air-flow cooling radiator, makes the heat that the radiator portion of heat dissipation metal device to be measured distributes completely by air-flow
Cooling radiating element is collected, and air-flow cooling radiator includes air flow rate control device and air-flow temperature control equipment, air-flow stream
Amount control device major control controls from outside from the outside flow flowing into the air-flow in right end chamber body, airflow temperature-control device
Flow into the temperature of the air-flow in right end chamber body, temperature analysis detecting system also includes controller, controller controls thermal source to produce
Temperature is adjustable, and controller also controls air flow rate control device and air-flow temperature control equipment simultaneously respectively, flows through gold to be measured
The gas flow temperature belonging to the radiator portion of radiating element is adjustable, and makes air flow rate adjustable.
As the improved technology scheme of the present invention, said apparatus cavity is formed by left end cavity and right-hand member cavity Moveable assembled
Assembled moving cavity, left end cavity carry heat insulation wall closed fixed cavity, below left end cavity equipped with slip lead
Wheel can move on guide rail, and right-hand member cavity is open type fixed cavity, particularly as follows: when performing a test, by mobile left
End cavity, to open right-hand member cavity, carries out the installation of heat dissipation metal device to be measured, embeds insulated wall in heat dissipation metal device to be measured
After body, the left end cavity fixing heat dissipation metal device to be measured is moved right and docks with right-hand member cavity, and pass through tightening nut
Lid gives hold-down ring and sealing ring and sets pressure so that sealing ring passes through deformation, by the heat insulation wall side of left end cavity and
The edge of opening locking of right-hand member cavity, makes left end cavity and right-hand member cavity combine；Upon completion of the test, by unscrewing spiral shell
Female lid carries out release to hold-down ring and sealing ring, opens right-hand member cavity by mobile left end cavity, carries out heat dissipation metal to be measured
The dismounting of device and replacing.
As the improvement of technique scheme, in right-hand member cavity, air flow rate control device is successively by airflow line, air-flow
Valve and pneumatic pump are formed by connecting, and the gas outlet of airflow line is connected with the air inlet on right-hand member cavity, and right-hand member cavity also sets
There is air vent, on the airflow line pipeline of right-hand member cavity, be additionally provided with vortex-shedding meter, the signal output of vortex-shedding meter
End is connected with controller, and controller controls, by controlling draught damper and pneumatic pump, the radiating flowing through heat dissipation metal device to be measured
Partial air flow rate, airflow temperature-control device adopt temperature controlled water bath groove, gas enter pneumatic pump before, by temperature control water
Bath carries out temperature adjustment in advance to gas.
As the improvement of technique scheme, it is additionally provided with least double layer of metal grid screen in right end chamber body, when being surveyed
During examination, the air-flow in airflow line input right end chamber body, after whole metal gate grid shunt, flows through heat dissipation metal to be measured
The radiator portion of device, makes air-flow be heated by heat dissipation metal device to be measured, measures the radiator portion temperature of heat dissipation metal device to be measured
The temperature sensor of degree is arranged between the metal gate grid of adjacent layer, when the radiator portion flowing through heat dissipation metal device to be measured
When gas flow temperature is constant, controller controls thermal source to stop energy supply, and controls closing temperature controlled water bath groove attemperating unit and pneumatic pump, from
And terminate to test.
As the improvement of technique scheme, the air vent in the cavity wall of right-hand member cavity is near left end cavity and right-hand member
Arrange at the separation of cavity.
As the improvement of technique scheme, right-hand member cavity have one be located remotely from opening air inlet and 4
Air vent, wherein air inlet diameter are 30 ~ 100mm, and the orthogonal thereto symmetry arrangement of 4 air vents, diameter of outlet is air inlet
/ 2nd of diameter.
The spacing of adjacent two-layer above-mentioned metal gate grid is preferably 50 ~ 100mm, the thickness of monolayer above-mentioned metal gate grid
It is preferably 10 ~ 50mm, the above-mentioned metal gate grid of each layer is all preferably disposed at the position of air inlet 100 ~ 200mm.
The cavity perisporium of above-mentioned left end cavity and right-hand member cavity is preferably sandwiched between refractory layer and low by double-layer stainless steel layer
The ceramic wool of thermal conductivity or magnesia brick are constituted, and wherein stainless steel layer thickness is preferably 0.5 ~ 2mm, and the thickness of wherein refractory layer is preferably
30 ~ 50mm, is preferably coated with the coating of high temperature resistant lower thermal conductivity in right end chamber body.
Preferably on the heating end of heat dissipation metal device to be measured with the binding face of copper coin, apply last layer heat-conducting silicone grease, make the two
Closely heat conduction connects.
The inside diameter of above-mentioned left end cavity and right-hand member cavity is preferably the circular cavity of 250 ~ 400mm, wherein right end chamber
The circular cavity overall length of body is preferably 750 ~ 1000mm.
The thickness of above-mentioned copper coin is preferably 5 ~ 10mm.
The thickness of above-mentioned heat insulation wall is preferably 5 ~ 10mm.
The present invention compared with prior art, has and obviously projects substantive distinguishing features and remarkable advantage as follows:
1. the present invention is under identical temperature constant thermal source and equal cooling condition, according to temperature during heated airflow temperature stabilization
Degree is more high, and the better principle of the comprehensive heat dispersion of radiating element carries out the comprehensive heat dispersion measurement of material, is achieved in table
Seek peace and assess the comprehensive heat dispersion of radiating element, this method has considered the radiation processes of complexity, the thing of heat radiating metal
The contribution to radiating element heat dispersion such as architectural feature of property parameter and radiating element；
2. apparatus of the present invention test platform system is applied to the comprehensive heat dispersion assessment work to different radiating products,
There is modular operation, operation sequence is easy, the simple advantage of experiment equipment；
3. the present invention adopts the analogy method similar to practical situation, by complicated radiation processes, the physical property of heat radiating metal
Architectural feature of parameter and radiating element etc. considers, by the temperature survey to specified point, thus reaching extremely fast
Characterize and assess the comprehensive heat dispersion of radiating element；
4., disclosed by the invention is widely suitable to the screening to Novel heat dissipation material for the laboratory, detection department is for radiating element
, for unlike material, the radiating element of different shaping carries out the quick inspection of heat dispersion for the assessment of heat dispersion and design department
Survey thus optimization design.
Brief description
Fig. 1 is the structural representation of the embodiment of the present invention one test device.
Fig. 2 is the sectional view of the a-a line along along Fig. 1.
Specific embodiment
Details are as follows for the preferred embodiments of the present invention:
Embodiment one:
In the present embodiment, referring to Fig. 1 and Fig. 2, a kind of test device of detection heat dissipation metal device heat dispersion, including
The device cavity of closing and temperature analysis detecting system, device cavity is divided into the independence of two parts heat obstruct by heat insulation wall 10
Space, forms left end cavity 1 and right-hand member cavity 2, heat dissipation metal device 12 to be measured is placed in device cavity, and makes metal to be measured
The heating end of radiating element 12 and radiator portion are located in left end cavity 1 and right-hand member cavity 2 respectively, temperature analysis detecting system by
Thermal source 8, temperature sensor 21 and data acquiring and recording analyser 22 are constituted, and thermal source 8 is located at being subject to of heat dissipation metal device 12 to be measured
In the cavity space that hot junction is located, the heating end of heat dissipation metal device 12 to be measured and thermal source 8 fit, and make metal heat sink to be measured
The temperature of part 12 raises, and temperature sensor 21 includes two, and one of temperature sensor 21 is arranged in left end cavity 1, its
In another temperature sensor 21 be arranged in right-hand member cavity 2, measure respectively heat dissipation metal device 12 to be measured heating end and dissipate
The temperature of hot part, in left end cavity 1, thermal source 8 adopts a series of resistance wires, and the heat that resistance wire generates passes through to copper coin 9
Radiation transmission, then conduction of heat, left end cavity 1 and right end chamber are carried out to the heating end of heat dissipation metal device 12 to be measured by copper coin 9
Heat insulation wall 10 between body 2 is made up of zirconium oxide brick bat or ceramic material, has dug and dissipate with metal to be measured on heat insulation wall 10
The embedded groove that thermal device 12 peripheral shape and size match, by closely knit for heat dissipation metal device 12 to be measured embedded heat insulation wall 10,
Temperature analysis detecting system also includes air-flow cooling radiator, and the radiator portion of heat dissipation metal device 12 to be measured is cooled down with air-flow
Radiator is connected, and so that the heat that the radiator portion of heat dissipation metal device 12 to be measured distributes is received by air-flow cooling radiating element completely
Collection, air-flow cooling radiator includes air flow rate control device and air-flow temperature control equipment, and the gas wherein constituting air-flow can
Think the gas of various different atmospheres, air-flow in outside inflow right-hand member cavity 2 for the air flow rate control device major control
Flow, airflow temperature-control device controls from the outside temperature flowing into the air-flow in right-hand member cavity 2, and temperature analysis detecting system is also
Including controller, controller controls the temperature that thermal source 8 produces adjustable, and controller also controls air flow rate control device simultaneously respectively
With air-flow temperature control equipment, the gas flow temperature flowing through the radiator portion of heat dissipation metal device 12 to be measured is adjustable, and makes to bring about the desired sensation
Stream flow is adjustable.In the present embodiment, the built-in temperature-controllable steady heat of left end cavity 1 of the detection platform system of test device
Source 8, is that copper coin 9 center arranges a temperature sensor 21, by this by for many resistance wire energy supplies, heating one piece of copper coin 9
Copper coin 9 temperature that records of temperature sensor 21 at place is compared thus big to adjust the power supplying resistance wire with setting value
Little, to realize copper coin 9 becomes a controlled steady thermal source, and the temperature of copper coin 9 is adjustable.It is to be measured that the present embodiment device can detect
Heat dissipation metal device 12 can be will to be used for manufacturing all kinds of metal bars of radiating element it is also possible to be designed to variously-shaped dissipating
Backing, for the heat dispersion of the heat dissipation metal material used by laboratory and detection department detection and assessment various electronic products.
In the present embodiment, referring to Fig. 1 and Fig. 2, device cavity is formed by left end cavity 1 and right-hand member cavity 2 Moveable assembled
Assembled moving cavity, left end cavity 1 carry heat insulation wall 10 closed fixed cavity, below left end cavity 1 equipped with cunning
Dynamic guide wheel 6 can move on guide rail 7, and right-hand member cavity 2 is open type fixed cavity, particularly as follows: when performing a test, passes through
Mobile left end cavity 1, to open right-hand member cavity 2, carries out the installation of heat dissipation metal device 12 to be measured, in heat dissipation metal device to be measured
After 12 embedded heat insulation walls 10, it is right with right-hand member cavity 2 that the left end cavity 1 fixing heat dissipation metal device 12 to be measured is moved right
Connect, and give hold-down ring 4 and sealing ring 3 setting pressure so that sealing ring 3 passes through deformation by tightening nut lid 5, by left end
The edge of opening locking of heat insulation wall 10 side of cavity 1 and right-hand member cavity 2, makes left end cavity 1 and 2 groups of right-hand member cavity be combined in one
Rise；Upon completion of the test, release is carried out to hold-down ring 4 and sealing ring 3 by loosening nut lid 5, by mobile left end cavity 1
To open right-hand member cavity 2, to carry out dismounting and the replacing of heat dissipation metal device 12 to be measured.
In the present embodiment, referring to Fig. 1, in right-hand member cavity 2, air flow rate control device is successively by airflow line 16, gas
Stream valve 18 and pneumatic pump 19 are formed by connecting, and the gas outlet of airflow line 16 is connected with the air inlet 14 on right-hand member cavity 2, right-hand member
Air vent 15 is additionally provided with cavity 2, on airflow line 16 pipeline of right-hand member cavity 2, is being additionally provided with vortex-shedding meter 17, whirlpool
The signal output part of street effusion meter 17 is connected with controller, and controller is by controlling draught damper 18 and pneumatic pump 19 come controlling stream
The air flow rate of the radiator portion through heat dissipation metal device 12 to be measured, airflow temperature-control device adopts temperature controlled water bath groove 20, gas
Body, before entering pneumatic pump 19, carries out temperature adjustment by temperature controlled water bath groove 20 to gas in advance.In the present embodiment, referring to
Fig. 1, the adjustable air-flow of temperature-controllable flow in right-hand member cavity 2 passes through to open pneumatic pump 19, and gas flows through and is dipped in temperature controlled water bath
After the airflow line of groove 20, enter test chamber to cool down heat dissipation metal device 12 to be measured, wherein pass through draught damper 18 and vortex street
Effusion meter 17 is come to carry out monitoring and the control of air flow rate, the temperature of temperature controlled water bath groove 20 be by thermoelectric semiconductor and to be placed in
The temperature sensor 21 of the monitoring gas flow temperature in right-hand member cavity 2 being regulated and controled so that entering in right-hand member cavity 2
Gas flow temperature and flow are adjustable, and the gas wherein constituting air-flow can be the gas of various different atmospheres.
In the present embodiment, referring to Fig. 1, it is additionally provided with double layer of metal grid screen 13 in right-hand member cavity 2, when being tested
When, the air-flow in airflow line 16 input right-hand member cavity 2, after whole metal gate grid 13 shunt, flows through metal to be measured and dissipates
The radiator portion of thermal device 12, makes air-flow be heated by heat dissipation metal device 12 to be measured, measures dissipating of heat dissipation metal device 12 to be measured
The temperature sensor 21 of hot portion temperature is arranged between the metal gate grid 13 of adjacent layer, when flowing through heat dissipation metal device to be measured
When the gas flow temperature of 12 radiator portion is constant, controller controls thermal source 8 to stop energy supply, and controls closing temperature controlled water bath groove 20 temperature
Control device and pneumatic pump 19, thus terminate to test.
In the present embodiment, referring to Fig. 1, air vent 15 in the cavity wall of right-hand member cavity 2, near left end cavity 1 He
Arrange at the separation of right-hand member cavity 2；Right-hand member cavity 2 have one be located remotely from opening air inlet 14 and 4 air vents
15, the wherein a diameter of 30mm of air inlet 14, and the orthogonal thereto symmetry arrangement of 4 air vents 15, a diameter of air inlet 14 of air vent 15
/ 2nd of diameter；The spacing of adjacent double layer of metal grid screen 13 is 50mm, and the thickness of single-layer metal grid screen 13 is
10mm, each layer metal gate grid 13 is all arranged at the position of air inlet 14200mm.
In the present embodiment, referring to Fig. 1 and Fig. 2, the cavity perisporium of left end cavity 1 and right-hand member cavity 2 is by double-layer stainless steel
Layer is sandwiched between refractory layer and the ceramic wool of lower thermal conductivity is constituted, and wherein stainless steel layer thickness is 2mm, the wherein thickness of refractory layer
For 50mm, in right-hand member cavity 2, it is coated with the coating of high temperature resistant lower thermal conductivity；Heating end and copper in heat dissipation metal device 12 to be measured
Apply last layer heat-conducting silicone grease 11 on the binding face of plate 9, so that the two tight heat conduction is connected；Left end cavity 1 and the inside of right-hand member cavity 2
The circular cavity overall length of the circular cavity of a diameter of 400mm, wherein right-hand member cavity 2 is 1000mm, equipped with cunning below left end cavity 1
Dynamic guide wheel 6 can move left and right on guide rail 7, and right-hand member cavity 2 is fixing end, opens test by mobile left end cavity 1 flat
Platform system, carries out the installation of heat dissipation metal device 12 to be measured；The thickness of copper coin 9 is 10mm；The thickness of heat insulation wall 10 is 10mm.
In the present embodiment, the difference different heat dissipation metal device to be measured of the consistent material of two kinds of configuration designs of test and comparison
12 comprehensive heat dispersion, one of which material is magnesium alloy heat radiation piece, and another kind of material is aluminum alloy heat sink.Referring to figure
1 and Fig. 2, using the method for the detection heat dissipation metal device heat dispersion of the present embodiment test device, analog radiator part is in reality
Work in the working environment of border, and characterized by measurement specified temp and assess the comprehensive heat dispersion of radiating element, this side
Method has considered the radiation processes of complexity, and the physical parameter of heat radiating metal and the architectural feature of radiating element etc. are to radiator
The contribution of part heat dispersion；Concrete operation step is as follows:
A. unclamp the nut cap 5 of locking left end cavity 1 and right-hand member cavity 2, left end cavity 1 be moved to the left certain distance,
It is easy to be fixed on magnesium alloy heat radiation piece to be measured on the constant temperature copper coin 9 of the temperature-controllable on the heat insulation wall 10 of left end cavity 1,
Particularly as follows: the embedded left end cavity 1 of 5mm thick oxidized zirconium brick bat of the groove that matches with magnesium alloy heat radiation piece periphery will be dug, make detection
In the left end cavity 1 of system the copper coin 9 of constant temperature and right-hand member cavity 2 be separated by so that the heat of copper coin 9 all pass through magnesium alloy scattered
Backing is delivered in right-hand member cavity 2, applies last layer on the binding face near the copper coin 9 of the heating surface of magnesium alloy heat radiation piece simultaneously
Then magnesium alloy heat radiation piece is embedded in and to be matched with magnesium alloy heat radiation piece periphery on heat-resisting zirconium oxide brick bat by heat-conducting silicone grease 11
In groove, so that magnesium alloy heat radiation piece is fitted with copper coin 9, this ensure that the conduction of heat between magnesium alloy heat radiation piece and copper coin 9；
B. the left end cavity 1 fixing magnesium alloy heat radiation piece is moved right, dock with right-hand member cavity 2, and by screwing
Nut cap 5 gives hold-down ring 4 and sealing ring 3 certain pressure so that left end cavity 1 and right-hand member cavity 2 are locked by sealing ring 3 deformation
Tightly；
C. open data acquiring and recording analyser 22, so that each temperature sensor 21 is started working；
D. the attemperating unit of temperature controlled water bath groove 20 is opened, the temperature of setting temperature controlled water bath groove 20 is 25 DEG C, opens air-flow
Pump 19, and by adjusting draught damper 18, air flow rate is adjusted to 100l/h；
E. it is the resistance wire energy supply in left end cavity 1, make copper coin 9 reach the constant temperature being 150 DEG C heating magnesium alloy
Fin；
F. observe and record in right-hand member cavity 2 and flow through magnesium alloy heat radiation piece simultaneously after twice metal gate grid 13 shunts
The gas flow temperature being heated by magnesium alloy heat radiation piece, when this temperature constant, stops for resistance wire energy supply, treating that copper coin 9 temperature is less than
When 40 DEG C, closed gas flow pump 19, so that left end cavity 1 and right-hand member cavity 2 is separated, open test platform system, by magnesium alloy heat radiation
Piece takes off, and changes aluminum alloy heat sink, subsequently with detection magnesium alloy heat radiation piece identical operation before, treats to be radiated by aluminium alloy
When the gas flow temperature of piece heating is constant, stop as resistance wire energy supply, when copper coin 9 temperature is less than 40 DEG C, closing temperature controlled water bath groove
20 attemperating units and pneumatic pump 19, complete to test.
The present embodiment by compare the fin of two kinds of same moulding unlike materials identical be heated with cooling condition under, when
Fin is heated when reaching stable with the state of cooling, and the height of heated airflow temperature radiates come the synthesis to characterize both fin
Performance quality, that is, the comprehensive heat dispersion of heated airflow temperature more high then explanation fin is better, judges such that it is able to quick
Both which is better and which is worse, it is to avoid the consideration of the many factors such as the specific heat capacity of fin material, heat conductivity, surface film thermal conductance.
The present embodiment detects that the method for heat dissipation metal device heat dispersion is that detected radiating element is placed in a cavity, so that metal is dissipated
Thermal device heating end and a temperature-controllable steady thermal source fit and so that radiating element temperature is raised, more given radiating element radiating part
A point temperature-controllable flow adjustable air-flow cooling radiating element, simultaneously record flow through radiating element and heated by radiating element
Gas flow temperature, when radiating element is heated and reaches stable with cooling, is characterized scattered by the height of heated airflow temperature when stablizing
The comprehensive heat dispersion quality of thermal device, i.e. heated airflow temperature stabilization under identical temperature constant thermal source and equal cooling condition
The comprehensive heat dispersion of the more high then radiating element of Shi Wendu is better, is achieved in characterizing and assess the comprehensive thermal diffusivity of radiating element
Can, this method has considered radiation processes, the physical parameter of heat radiating metal and the architectural feature of radiating element of complexity
Deng the contribution to radiating element heat dispersion.
Enforcement two:
The present embodiment is essentially identical with embodiment one, is particular in that:
The present embodiment detects that the method for heat dissipation metal device heat dispersion can help design department to optimize the design of fin.
The present embodiment heat dissipation metal to be measured device 12 is related to the moulding comparing two same alloy materials, surface area is consistent, moulding is different
One alloy heat-sink piece and moulding two alloy heat-sink piece, specific operation process is as follows:
A. unclamp the nut cap 5 of locking left end cavity 1 and right-hand member cavity 2, left end cavity 1 be moved to the left certain distance,
It is easy to moulding one alloy heat-sink piece is fixed on the constant temperature copper coin 9 of the temperature-controllable on the heat insulation wall 10 of left end cavity 1, tool
Body is: will dig the embedded left end cavity 1 of 8mm thick oxidized zirconium brick bat of the groove that matches with moulding one alloy heat-sink piece periphery, makes inspection
In the left end cavity 1 of examining system, the copper coin 9 of constant temperature is separated by so that the heat of copper coin 9 all passes through moulding one with right-hand member cavity 2
Alloy heat-sink piece is delivered in right-hand member cavity 2, simultaneously in the binding face of the copper coin 9 of the heating surface near moulding one alloy heat-sink piece
Upper painting last layer heat-conducting silicone grease 11, then by moulding one alloy heat-sink piece be embedded on heat-resisting zirconium oxide brick bat with moulding one alloy
In the groove that fin periphery matches, so that moulding one alloy heat-sink piece is fitted with copper coin 9, this ensure that moulding one alloy dissipates
Conduction of heat between backing and copper coin 9；
B. the left end cavity 1 fixing moulding one alloy heat-sink piece is moved right, dock with right-hand member cavity 2, and pass through
Tightening nut lid 5 gives hold-down ring 4 and sealing ring 3 certain pressure so that sealing ring 3 deforms left end cavity 1 and right end chamber
Body 2 is locked；
C. open data acquiring and recording analyser 22, so that each temperature sensor 21 is started working；
D. the attemperating unit of temperature controlled water bath groove 20 is opened, the temperature of setting temperature controlled water bath groove 20 is 15 DEG C, opens air-flow
Pump 19, and by adjusting draught damper 18, air flow rate is adjusted to 80l/h；
E. it is the resistance wire energy supply in left end cavity 1, make copper coin 9 reach the constant temperature being 100 DEG C heating moulding one
Alloy heat-sink piece；
F. observe and record in right-hand member cavity 2 and flow through moulding one alloy heat-sink after twice metal gate grid 13 shunts
Piece the gas flow temperature by the heating of moulding one alloy heat-sink piece, when this temperature constant, stop for resistance wire energy supply, treating copper coin 9
When temperature is less than 40 DEG C, closed gas flow pump 19, so that left end cavity 1 and right-hand member cavity 2 is separated, open test platform system, will make
Type one alloy heat-sink piece takes off, and changes moulding two alloy heat-sink piece, subsequently identical with detection moulding one alloy heat-sink piece before
Operation, when the gas flow temperature of two alloy heat-sink pieces heating styling is constant, stop for resistance wire energy supply, treating that copper coin 9 temperature is low
When 40 DEG C, close temperature controlled water bath groove 20 attemperating unit and pneumatic pump 19, complete to test.
The present embodiment by compare moulding one and moulding two alloy heat-sink piece identical be heated with cooling condition under, work as radiating
Piece is heated when reaching stable with the state of cooling, the height of the heated airflow temperature synthesis to characterize both different shaping fin
Heat dispersion quality, that is, the comprehensive heat dispersion of heated airflow temperature more high then explanation fin is better, such that it is able to quick
Which is better and which is worse, thus quickly drawing optimized design to judge both.
Above in conjunction with accompanying drawing, the embodiment of the present invention is illustrated, but the invention is not restricted to above-described embodiment, acceptable
The purpose of the innovation and creation according to the present invention makes multiple changes, under all spirit and principle according to technical solution of the present invention
The change made, modification, replacement, combination, simplifying, all should be equivalent substitute mode, as long as meeting the goal of the invention of the present invention, only
To detect the method for heat dissipation metal device heat dispersion and its know-why of test device and inventive concept without departing substantially from the present invention,
Broadly fall into protection scope of the present invention.
Claims (17)
1. a kind of method of detection heat dissipation metal device heat dispersion, test device includes device cavity and the temperature analysis closed
Detecting system, described device cavity is divided into the separate space of two parts heat obstruct by heat insulation wall (10), forms left end cavity
(1) and right-hand member cavity (2), heat dissipation metal device (12) to be measured is placed in described device cavity, and makes metal heat sink to be measured
The heating end of part (12) and radiator portion are located in described left end cavity (1) and described right-hand member cavity (2) respectively, and described temperature is divided
Analysis detecting system is made up of thermal source (8), temperature sensor (21) and data acquiring and recording analyser (22), described thermal source (8) position
In heat dissipation metal device (12) to be measured heating end be located cavity space in, the heating end of heat dissipation metal device (12) to be measured with
Described thermal source (8) fits, and so that the temperature of heat dissipation metal device (12) to be measured is raised, described temperature sensor (21) at least includes
Two, one of described temperature sensor (21) is arranged in described left end cavity (1), temperature sensing described in other in which
Device (21) is arranged in described right-hand member cavity (2), measures heating end and the radiator portion of heat dissipation metal device (12) to be measured respectively
Temperature it is characterised in that: in described left end cavity (1), described thermal source (8) adopt a series of resistance wires, described resistance wire
The heat generating passes through to copper coin (9) radiation transmission, then passes through described copper coin (9) being heated to heat dissipation metal device (12) to be measured
End carries out conduction of heat, the heat insulation wall (10) between described left end cavity (1) and described right-hand member cavity (2) by zirconium oxide brick bat or
Ceramic material is constituted, and has dug and heat dissipation metal device (12) peripheral shape to be measured and size phase on described heat insulation wall (10)
The embedded groove joined, by closely knit for heat dissipation metal device (12) to be measured embedded described heat insulation wall (10), described temperature analysis detection system
System also includes air-flow cooling radiator, and the radiator portion of heat dissipation metal device (12) to be measured is cooled down radiator phase with described air-flow
Connect, so that the heat that the radiator portion of heat dissipation metal device (12) to be measured distributes is collected by air-flow cooling radiating element completely, institute
State air-flow cooling radiator and include air flow rate control device and air-flow temperature control equipment, described air flow rate control device master
Control from the outside flow flowing into the air-flow in described right-hand member cavity (2), described airflow temperature-control device controls from outside
Flow into the temperature of the air-flow in described right-hand member cavity (2), described temperature analysis detecting system also includes controller, described controller
Control the temperature that described thermal source (8) produces adjustable, described controller also control respectively simultaneously described air flow rate control device and
Described airflow temperature-control device, the gas flow temperature flowing through the radiator portion of heat dissipation metal device (12) to be measured is adjustable, and makes
Obtain air flow rate adjustable, heat dissipation metal device to be measured is placed in the cavity of closing, makes the heating end of heat dissipation metal device to be measured
Fit with the steady thermal source of temperature-controllable, so that the temperature of heat dissipation metal device to be measured is raised, then by heat dissipation metal device to be measured
Radiator portion with temperature-controllable and flow adjustable air-flow cooling radiating element be connected, make heat dissipation metal device to be measured dissipate
The heat that heat part distributes is collected by air-flow cooling radiating element completely, and record flows through heat dissipation metal device to be measured and treated simultaneously
Survey heat dissipation metal device heating gas flow temperature, when heat dissipation metal device to be measured be heated reach stable with cooling when, by steady
The height of timing heated airflow temperature is characterizing the comprehensive heat dispersion of heat dissipation metal device to be measured.
2. according to claim 1 detection heat dissipation metal device heat dispersion method it is characterised in that: record flow through to be measured
Heat dissipation metal device during by the gas flow temperature of heat dissipation metal device to be measured heating, using being respectively arranged at metal heat sink to be measured
The heating end of part and the temperature data of the colling end temperature acquisition point acquirement that nearby flow area is respectively provided with.
3. according to claim 1 or claim 2 detection heat dissipation metal device heat dispersion method it is characterised in that: described temperature
The temperature that controlled steady thermal source produces is adjustable in the range of 30 ~ 500 DEG C.
4. according to claim 1 or claim 2 detection heat dissipation metal device heat dispersion method it is characterised in that: closing
In cavity, area of space near described heat dissipation metal device radiator portion to be measured, described air-flow cooling radiator makes to flow
Gas flow temperature through heat dissipation metal device radiator portion to be measured is adjustable in the range of 10 ~ 50 DEG C, and make air flow rate 50 ~
Adjustable in the range of 150l/h.
5. according to claim 1 or claim 2 detection heat dissipation metal device heat dispersion method it is characterised in that: metal to be measured
Radiating element is fin or the metal bar for manufacturing radiating element.
6. a kind of method testing device implementing detection heat dissipation metal device heat dispersion described in claim 1, including closing
Device cavity and temperature analysis detecting system, described device cavity by heat insulation wall (10) be divided into two parts heat obstruct only
Vertical space, forms left end cavity (1) and right-hand member cavity (2), heat dissipation metal device (12) to be measured is placed in described device cavity,
And make the heating end of heat dissipation metal device (12) to be measured and radiator portion be located at described left end cavity (1) and described right end chamber respectively
In body (2), described temperature analysis detecting system is by thermal source (8), temperature sensor (21) and data acquiring and recording analyser (22)
Constitute, described thermal source (8) is located in the cavity space at heating end place of heat dissipation metal device (12) to be measured, heat dissipation metal to be measured
The heating end of device (12) is fitted with described thermal source (8), so that the temperature of heat dissipation metal device (12) to be measured is raised, described temperature
Sensor (21) at least includes two, and one of described temperature sensor (21) is arranged in described left end cavity (1), wherein
Another described temperature sensor (21) is arranged in described right-hand member cavity (2), measures heat dissipation metal device (12) to be measured respectively
Heating end and radiator portion temperature it is characterised in that: in described left end cavity (1), described thermal source (8) adopt a series of
Resistance wire, the heat that described resistance wire generates passes through to copper coin (9) radiation transmission, then by described copper coin (9) to metal to be measured
The heating end of radiating element (12) carries out conduction of heat, the heat insulation wall between described left end cavity (1) and described right-hand member cavity (2)
(10) it is made up of zirconium oxide brick bat or ceramic material, described heat insulation wall (10) has dug and heat dissipation metal device (12) to be measured
The embedded groove that peripheral shape and size match, by closely knit for heat dissipation metal device (12) to be measured embedded described heat insulation wall (10),
Described temperature analysis detecting system also includes air-flow cooling radiator, by the radiator portion of heat dissipation metal device (12) to be measured and institute
State air-flow cooling radiator to be connected, make the heat that the radiator portion of heat dissipation metal device (12) to be measured distributes completely cold by air-flow
But radiating element is collected, and described air-flow cooling radiator includes air flow rate control device and air-flow temperature control equipment, described
Air flow rate control device major control is from the outside flow flowing into the air-flow in described right-hand member cavity (2), described gas flow temperature
Control device controls from the outside temperature flowing into the air-flow in described right-hand member cavity (2), and described temperature analysis detecting system is also wrapped
Include controller, described controller controls the temperature that described thermal source (8) produces adjustable, described controller also controls described simultaneously respectively
Air flow rate control device and described airflow temperature-control device, flow through the radiator portion of heat dissipation metal device (12) to be measured
Gas flow temperature is adjustable, and makes air flow rate adjustable.
7. according to claim 6 test device it is characterised in that: described device cavity is by described left end cavity (1) and institute
State right-hand member cavity (2) Moveable assembled and form assembled moving cavity, described left end cavity (1) carries described heat insulation wall (10)
Closed fixed cavity, below described left end cavity (1) equipped with sliding wheel (6) can move on guide rail (7), described
Right-hand member cavity (2) is open type fixed cavity, particularly as follows: when performing a test, to be opened by mobile described left end cavity (1)
Described right-hand member cavity (2), carries out the installation of heat dissipation metal device (12) to be measured, embeds described in heat dissipation metal device (12) to be measured
After heat insulation wall (10), the left end cavity (1) fixing heat dissipation metal device (12) to be measured is moved right and described right end chamber
Body (2) docks, and gives hold-down ring (4) and sealing ring (3) setting pressure so that described sealing ring by tightening nut lid (5)
(3) pass through deformation, by the opening of described heat insulation wall (10) side of described left end cavity (1) and described right-hand member cavity (2)
Edge is locked, and so that described left end cavity (1) and described right-hand member cavity (2) is combined；Upon completion of the test, by unscrewing
State nut cap (5) and release is carried out to hold-down ring (4) and sealing ring (3), to be opened by mobile described left end cavity (1) described
Right-hand member cavity (2), carries out dismounting and the replacing of heat dissipation metal device (12) to be measured.
8. according to claim 6 or 7 test device it is characterised in that: in described right-hand member cavity (2), described air flow rate
Control device is formed by connecting by airflow line (16), draught damper (18) and pneumatic pump (19) successively, described airflow line (16)
Gas outlet is connected with the air inlet (14) on described right-hand member cavity (2), and described right-hand member cavity (2) is additionally provided with air vent
(15), on described airflow line (16) pipeline of described right-hand member cavity (2), it is being additionally provided with vortex-shedding meter (17), described whirlpool
The signal output part of street effusion meter (17) is connected with described controller, described controller pass through control described draught damper (18) and
Pneumatic pump (19) is controlling the air flow rate of the radiator portion flowing through heat dissipation metal device (12) to be measured, described airflow temperature-control
Device adopts temperature controlled water bath groove (20), gas before entering pneumatic pump (19), by described temperature controlled water bath groove (20) to gas
Carry out temperature adjustment in advance.
9. according to claim 8 test device it is characterised in that: be additionally provided with least two-layer in described right-hand member cavity (2)
Metal gate grid (13), when performing a test, inputs the air-flow in described right-hand member cavity (2) from described airflow line (16) and passes through
All after described metal gate grid (13) shunting, flow through the radiator portion of heat dissipation metal device (12) to be measured, make air-flow to be measured
Heat dissipation metal device (12) heats, and measures the described temperature sensor of the radiator portion temperature of heat dissipation metal device (12) to be measured
(21) it is arranged between the described metal gate grid (13) of adjacent layer, when the radiator portion flowing through heat dissipation metal device (12) to be measured
Gas flow temperature constant when, described controller controls described thermal source (8) to stop energy supply, and controls the described temperature controlled water bath groove of closing
(20) attemperating unit and described pneumatic pump (19), thus terminate to test.
10. according to claim 8 test device it is characterised in that: described in the cavity wall of described right-hand member cavity (2)
Air vent (15), is arranged at the separation of described left end cavity (1) and described right-hand member cavity (2).
11. according to claim 8 test device it is characterised in that: described right-hand member cavity (2) has one and is located remotely from out
Mouthful end described air inlet (14) and 4 described air vents (15), a diameter of 30 ~ 100mm of wherein said air inlet (14), and
The orthogonal thereto symmetry arrangement of 4 described air vents (15), two points of a diameter of described air inlet (14) diameter of described air vent (15)
One of.
12. according to claim 8 test device it is characterised in that: described in adjacent two-layer between metal gate grid (13)
Away from for 50 ~ 100mm, the thickness of metal gate grid (13) described in monolayer is 10 ~ 50mm, and the described metal gate grid (13) of each layer all sets
It is placed at the position of described air inlet (14) 100 ~ 200mm.
13. according to claim 6 or 7 test device it is characterised in that: described left end cavity (1) and described right-hand member cavity
(2) cavity perisporium is sandwiched between refractory layer by double-layer stainless steel layer and the ceramic wool of lower thermal conductivity or magnesia brick are constituted, wherein not
Rust steel layer thickness is 0.5 ~ 2mm, and the wherein thickness of refractory layer is 30 ~ 50mm, is coated with high temperature resistant low in described right-hand member cavity (2)
The coating of thermal conductivity.
14. according to claim 6 or 7 test device it is characterised in that: in the heating end of heat dissipation metal device (12) to be measured
Apply last layer heat-conducting silicone grease (11) with the binding face of described copper coin (9), so that the two tight heat conduction is connected.
15. according to claim 6 or 7 test device it is characterised in that: described left end cavity (1) and described right-hand member cavity
(2) inside diameter is the circular cavity of 250 ~ 400mm, the circular cavity overall length of wherein said right-hand member cavity (2) is 750 ~
1000mm.
16. according to claim 6 or 7 test device it is characterised in that: the thickness of described copper coin (9) be 5 ~ 10mm.
17. according to claim 6 or 7 test device it is characterised in that: the thickness of described heat insulation wall (10) be 5 ~
10mm.
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| CN105606389B (en) * | 2016-02-17 | 2018-05-01 | 江西理工大学 | A kind of radiator performance automatic detection device |
| CN106289838A (en) * | 2016-08-01 | 2017-01-04 | 浙富控股集团股份有限公司 | A kind of ventilation and heat test-bed and test method thereof |
| CN107966469A (en) * | 2016-10-20 | 2018-04-27 | 英业达科技有限公司 | Radiator and its test system |
| CN107085008A (en) * | 2017-05-08 | 2017-08-22 | 深圳市时维智能装备有限公司 | A kind of method for exciting solid body heat radiation characteristic and identification servicing unit |
| CN107167493A (en) * | 2017-06-02 | 2017-09-15 | 上海大学 | The device of material heat dispersion is measured under additional physical field |
| CN108645612B (en) * | 2018-07-12 | 2020-01-21 | 博特换热系统（江苏)有限公司 | Detection apparatus for automobile engine radiator heat dispersion |
| CN111141781B (en) * | 2018-11-06 | 2022-08-19 | 中车株洲电力机车研究所有限公司 | Test method and system for heat impedance of radiator |
| CN112649184A (en) * | 2020-12-22 | 2021-04-13 | 青岛海尔空调电子有限公司 | Method and device for testing heat dissipation capacity of radiator and test box |
| CN113432898A (en) * | 2021-05-13 | 2021-09-24 | 天津电气科学研究院有限公司 | Multipoint crimping type temperature measurement copper block of radiator, performance testing device and testing method |
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