CN107991116A - A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source - Google Patents
A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source Download PDFInfo
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- CN107991116A CN107991116A CN201711200177.6A CN201711200177A CN107991116A CN 107991116 A CN107991116 A CN 107991116A CN 201711200177 A CN201711200177 A CN 201711200177A CN 107991116 A CN107991116 A CN 107991116A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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Abstract
The present invention discloses a kind of radiator performance assessment based on dot matrix heat source and areal calculation platform, belongs to LED radiator design field.Temperature, humidity and the air velocity of simulated environment are controlled come overall balance by wind turbine, heating tube, moisture import and hot wet wind sensor；Be pivoted by the stepper motor of heat simulation system bottom control simulation random wind to；Heat simulation system is made of some array junior units, and each unit includes thermal modules and temperature sensor, and each unit includes activation and do not activate two states；Hot wet wind sensor sends a signal to PC main control platforms with temperature sensor；PC main control platforms are monitored in real time every temperature for activating heat source and the relation curve of hot source temperature and radiator area to be measured are fitted using fin cladding process.The present invention is monitored in real time based on convection environment accurate simulation LED radiation processes chip temperature and is fitted with the relation curve of heat dissipation area.
Description
Technical field
The invention belongs to LED radiator design field, it is especially a kind of based on dot matrix heat source radiator performance assessment with
Areal calculation platform.
Background technology
LED is also all the more severe with the raising of power, the increasing of integration density, the challenge to its supporting cooling system.Mesh
Before, the design method on LED radiator is usually empirical estimation method, or analogue simulation method, empirical estimation method compare dependence
The experience and computing capability of designer, there are larger uncertain subjective factor, and analogue simulation method is due to model and reality
Situation is unavoidable to cause result there are many differences there are large error (and error size does not have evident regularity), because
This can not be directly as the final reference of design.
The content of the invention
To solve the prior art there are the defects of larger uncertain subjective factor and many differences, the present invention provides one
Radiator performance assessment and areal calculation platform of the kind based on dot matrix heat source.
To achieve the above object, the present invention uses following technical proposals：
A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source, it includes wind turbine, heating tube, moisture
Import, heat simulation system, radiator to be measured, hot wet wind sensor and PC main control platforms, heat simulation system is by some arrays
Junior unit forms, and each unit includes thermal modules and temperature sensor, and each unit includes activation and do not activate two states；
The temperature, wet of simulated environment is controlled come overall balance by wind turbine, heating tube, moisture import and hot wet wind sensor
Degree and air velocity；
Be pivoted by the stepper motor of heat simulation system bottom control simulation random wind to；
Hot wet wind sensor sends a signal to PC main control platforms with temperature sensor；
PC main control platforms are monitored in real time every temperature for activating heat source and are fitted using fin cladding process warm at heat source
The relation curve of degree and radiator area to be measured.
Using above-mentioned technical proposal, tested using radiator to be measured and fit required temperature, it is hot under the conditions of humidity air
The relation curve of source temperature and radiator area to be measured is referred to as fansink designs；Assessment calculates existing radiator and is specifying
Temperature, heat-sinking capability (such as convection coefficient) under the conditions of humidity air and in real time in monitoring test every activation heat source temperature
Degree.
Further, the stepper motor of heat simulation system bottom passes through integrated motor control single chip computer and PC master control platforms
Connection, and the instruction sent by PC master control platforms controls steering and the speed including stepper motor.
Further, according to actual conditions, power of heat source and arrangement and environmental condition are set, PC main control platforms pass through
Fin method is covered to test and obtain hot source temperature and radiator face to be measured using heat-insulating material successively on radiator to be measured
Long-pending data point, curvilinear equation is fitted further according to data point, and tries to achieve existing radiator by given temperature upper limit
Minimum heat face.
Further, PC main control platforms go out under current humidity, temperature and wind speed with reference to hot wet wind sensor COMPREHENSIVE CALCULATING
There is effective convection coefficient of radiator.
Beneficial effect：
1. can be most of conventional on the influential environmental condition of heat dissipation by adjusting humidity, temperature, wind speed accurate simulation.
2. array simulation heat source supports shape and changed power.
3. covering fin mode by heat-insulating material changes radiating surface, reduce compared to slotting wing mode and produce interval station ring
Section.
4. simulation heat source is integrated with heat production and thermocouple Dual module.
Brief description of the drawings
Fig. 1 is the structure diagram of profile portion of the present invention；
Fig. 2 is the schematic diagram of control section of the present invention；
Fig. 3 is step motor control signal schematic representation in the present invention；
Fig. 4 is heat simulation system schematic diagram in the present invention；
Fig. 5 is the schematic diagram that the present invention changes radiating surface using fin cladding process；
Fig. 6 is the graph of relation that the present invention fits hot source temperature and radiator area to be measured；
Fig. 7 is the curve synoptic diagram that PC main control platforms are shown in the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
The present invention a kind of radiator performance assessment and areal calculation platform based on dot matrix heat source, as shown in Figs. 1-2, it is wrapped
Include wind turbine 1, heating tube 2, moisture import 3, heat simulation system 4, radiator to be measured 5, hot wet wind sensor 6 and PC main control platforms
7, by the wind turbine 1, heating tube 2, moisture import 3 and hot wet wind sensor 6 come overall balance control simulated environment temperature,
Humidity and air velocity；
It is pivoted by the stepper motor 43 of 4 bottom of heat simulation system to control simulation random wind to (such as Fig. 2 institutes
Showing, the stepper motor 43 of 4 bottom of heat simulation system can be connected by integrated motor control single chip computer 8 with PC master controls platform 7,
And steering and the speed of the instruction sent by PC master controls platform 7 to control stepper motor 43 etc.), as shown in figure 3, rotating forward
Motor control signal and the graph of a relation of duration during with reversely rotating；
As shown in Fig. 2, hot wet wind sensor 6 sends a signal to PC main control platforms 7 with temperature sensor 42；
As shown in figure 4, heat simulation system 4 is made of some array junior units, each unit includes thermal modules 41 and temperature
Sensor 42 is spent, and each unit includes activation and do not activate two states；As shown in figure 4, simulate a kind of 8 heat source (black
Blockage) heat situation, rectangular region is the radiator to be measured 5 that is contacted with heat source.Therefore can in whole working platform
Real time monitoring draws out the curve that the temperature of every activation heat source changes over time.
According to actual conditions, power of heat source and arrangement and environmental condition are set, can be by radiator 5 to be measured
Fin method is covered using heat-insulating material successively as shown in figure 5, to test and obtain hot source temperature and 5 area of radiator to be measured
Data point (data point is more scattered and at most result enough is more accurate), then fits curve as shown in Figure 6 according to data point
Equation, and the minimum heat face of existing radiator is tried to achieve as shown in fig. 7, additionally can be with by given temperature upper limit 120
Go out current humidity temperature and effective convection coefficient of existing radiator under wind speed with reference to hot 6 COMPREHENSIVE CALCULATING of wet wind sensor.
Limiting the scope of the invention, those skilled in the art should understand that, in technical scheme
On the basis of, the various modifications or variations that can be made by those skilled in the art with little creative work is still the present invention's
Within protection domain.
Claims (4)
1. a kind of radiator performance assessment and areal calculation platform based on dot matrix heat source, it is characterised in that：It includes wind turbine
(1), heating tube (2), moisture import (3), heat simulation system (4), radiator to be measured (5), hot wet wind sensor (6) and PC master
Platform (7) is controlled, the heat simulation system (4) is made of some array junior units, and each unit includes thermal modules (41) and temperature
Sensor (42) is spent, and each unit includes activation and do not activate two states；
Controlled and simulated come overall balance by the wind turbine (1), heating tube (2), moisture import (3) and hot wet wind sensor (6)
Temperature, humidity and the air velocity of environment；
Be pivoted by the stepper motor (43) of heat simulation system (4) bottom control simulation random wind to；
The hot wet wind sensor (6) sends a signal to PC main control platforms (7) with temperature sensor (42)；
The PC main control platforms (7) are monitored in real time every temperature for activating heat source and are fitted using fin cladding process at heat source
Temperature and the relation curve of radiator to be measured (5) area.
2. the radiator performance assessment according to claim 1 based on dot matrix heat source exists with areal calculation platform, its feature
In：The stepper motor (43) of heat simulation system (4) bottom passes through integrated motor control single chip computer (8) and PC master control platforms
(7) connect, and steering and the speed including stepper motor (43) are controlled by instruction that PC master controls platform (7) is sent.
3. radiator performance assessment and areal calculation platform, its feature according to claim 1 or 2 based on dot matrix heat source
It is：According to actual conditions, power of heat source and arrangement and environmental condition are set, the PC main control platforms (7) are by treating
Survey on radiator (5) and cover fin method successively using heat-insulating material to test and obtain hot source temperature and radiator to be measured (6)
The data point of area, curvilinear equation is fitted further according to data point, and tries to achieve existing radiator by given temperature upper limit
Minimum heat face.
4. the radiator performance assessment according to claim 3 based on dot matrix heat source exists with areal calculation platform, its feature
In：The PC main control platforms (7) go out scattered under current humidity, temperature and wind speed with reference to hot wet wind sensor (6) COMPREHENSIVE CALCULATING
Effective convection coefficient of hot device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711200177.6A CN107991116B (en) | 2017-11-27 | 2017-11-27 | A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source |
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| CN201711200177.6A CN107991116B (en) | 2017-11-27 | 2017-11-27 | A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source |
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| CN107991116A true CN107991116A (en) | 2018-05-04 |
| CN107991116B CN107991116B (en) | 2019-11-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595752A (en) * | 2021-03-02 | 2021-04-02 | 湖大科瑞（江苏）检测技术有限公司 | Heat dissipation plate performance test system |
| CN113092151A (en) * | 2021-04-07 | 2021-07-09 | 南京艾德恒信科技有限公司 | Dot-matrix heat source simulation device |
| CN114076689A (en) * | 2020-08-20 | 2022-02-22 | 株洲中车奇宏散热技术有限公司 | Heat pipe radiator temperature rise detection method and heat pipe radiator detection equipment |
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| CN103175672A (en) * | 2013-02-28 | 2013-06-26 | 山东大学 | Construction machinery radiator air tunnel capable of simulating wind and sand impact and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114076689A (en) * | 2020-08-20 | 2022-02-22 | 株洲中车奇宏散热技术有限公司 | Heat pipe radiator temperature rise detection method and heat pipe radiator detection equipment |
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| CN113092151A (en) * | 2021-04-07 | 2021-07-09 | 南京艾德恒信科技有限公司 | Dot-matrix heat source simulation device |
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| CN107991116B (en) | 2019-11-15 |
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