CN107991116B - 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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- CN107991116B CN107991116B CN201711200177.6A CN201711200177A CN107991116B CN 107991116 B CN107991116 B CN 107991116B CN 201711200177 A CN201711200177 A CN 201711200177A CN 107991116 B CN107991116 B CN 107991116B
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- temperature
- radiator
- heat source
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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
Abstract
The present invention disclose it is a kind of based on dot matrix heat source radiator performance assessment with areal calculation platform, belong to LED radiator design field.Temperature, humidity and the air velocity of simulated environment are controlled come overall balance by blower, 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 several 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 and temperature sensor send a signal to PC main control platform；PC main control platform is monitored in real time the temperature of every activation heat source and is fitted the relation curve of hot source temperature Yu radiator area to be measured using fin cladding process.It is fitted the present invention is based on convection environment accurate simulation LED radiation processes chip temperature real time monitoring and 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 technique
Raising of the LED with power, the increasing of integration density are also all the more severe to the challenge of its mating cooling system.Mesh
Before, the design method about LED radiator is usually empirical estimation method or analogue simulation method, and empirical estimation method compares dependence
The experience and computing capability of designer, there are biggish uncertain subjective factors, and analogue simulation method is due to model and reality
Situation is unavoidable to cause result there are large error (and there is no evident regularities for error size) there are many differences, because
This can not be directly as the final reference of design.
Summary of the invention
Have the defects that biggish uncertain subjective factor and many differences, the present invention provide one to solve the prior art
Radiator performance assessment and areal calculation platform of the kind based on dot matrix heat source.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source, it includes blower, heating tube, moisture
Import, heat simulation system, radiator to be measured, hot wet wind sensor and PC master control platform, heat simulation system is by several arrays
Junior unit composition, 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 blower, 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 and temperature sensor send a signal to PC master control platform；
PC master control platform is monitored in real time the temperature of every activation heat source and is fitted using fin cladding process warm at heat source
The relation curve of degree and radiator area to be measured.
By adopting the above technical scheme, required temperature, heat under the conditions of humidity air are tested and fitted using radiator to be measured
The relation curve of source temperature and radiator area to be measured is referred to as fansink designs；Assessment calculates existing radiator specified
Temperature, the temperature of every activation heat source in the heat-sinking capability (such as convection coefficient) and real-time monitoring test under the conditions of humidity air
Degree.
Further, the stepper motor of heat simulation system bottom passes through integrated motor control single-chip microcontroller and PC master control platform
Connection, and the steering and speed including stepper motor are controlled by the instruction of PC master control platform sending.
Further, according to the actual situation, power of heat source and arrangement and environmental condition are set, PC master control platform passes through
Fin method is covered successively to test and obtain hot source temperature and radiator face to be measured using heat-insulating material on radiator to be measured
Long-pending data point fits curvilinear equation further according to data point, and acquires existing radiator by given temperature upper limit
Minimum heat face.
Further, PC master control platform combines hot wet wind sensor COMPREHENSIVE CALCULATING to go out under current humidity, temperature and wind speed
There is effective convection coefficient of radiator.
The utility model has the advantages that
1. can be by adjusting humidity, temperature, the most of routine of wind speed accurate simulation is on the influential environmental condition of heat dissipation.
2. array simulates heat source and supports shape and changed power.
3. covering fin mode by heat-insulating material changes radiating surface, reduces compared to slotting wing mode and generate interval station ring
Section.
4. simulation heat source is integrated with heat production and thermocouple Dual module.
Detailed description of the invention
Fig. 1 is the structural schematic 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 Yu radiator area to be measured；
Fig. 7 is the curve synoptic diagram that PC master control platform is shown in the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
A kind of radiator performance assessment and areal calculation platform based on dot matrix heat source of the present invention, as shown in Figs. 1-2, it is wrapped
Include blower 1, heating tube 2, moisture import 3, heat simulation system 4, radiator to be measured 5, hot wet wind sensor 6 and PC master control platform
7, by the blower 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 institute
Showing, the stepper motor 43 of 4 bottom of heat simulation system can be connect by integrated motor control single-chip microcontroller 8 with PC master control platform 7,
And steering and the speed etc. instructed to control stepper motor 43 issued by PC master control platform 7), as shown in figure 3, rotating in the forward direction
With the relational graph of motor control signal and duration when reversely rotating；
As shown in Fig. 2, hot wet wind sensor 6 is sent a signal to temperature sensor 42
PC master control platform 7；
As shown in figure 4, heat simulation system 4 is made of several 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, simulating a kind of 8 heat source (black
Small cube) heat situation, rectangular region is the radiator to be measured 5 contacted with heat source.It therefore can in entire working platform
Real time monitoring draws out the curve that the temperature of every activation heat source changes over time.
According to the actual situation, power of heat source and arrangement and environmental condition are set, it can be by radiator 5 to be measured
Fin method is successively covered using heat-insulating material 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 dispersed and enough then results are more accurate), then fits curve as shown in FIG. 6 according to data point
Equation, and the minimum heat face of existing radiator is acquired by given temperature upper limit 120 as shown in fig. 7, additionally can be with
Go out at current humidity temperature and wind speed to have effective convection coefficient of radiator in conjunction with hot 6 COMPREHENSIVE CALCULATING of wet wind sensor.
Limiting the scope of the invention, those skilled in the art should understand that, in technical solution of the present invention
On the basis of, the various modifications or variations that can be made by those skilled in the art with little creative work still of the invention
Within protection scope.
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 blower
(1), heating tube (2), moisture import (3), heat simulation system (4), radiator to be measured (5), hot wet wind sensor (6) and PC are total
It controls platform (7), the heat simulation system (4) is made of several array junior units, and each unit includes thermal modules (41) and temperature
It spends sensor (42), and each unit includes activation and do not activate two states；
It is controlled and is simulated come overall balance by the blower (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) and temperature sensor (42) send a signal to PC master control platform (7)；
The PC master control platform (7) is monitored in real time the temperature of every activation heat source and is fitted at heat source using fin cladding process
The relation curve of temperature and radiator to be measured (5) area.
2. the radiator performance assessment and areal calculation platform, feature according to claim 1 based on dot matrix heat source exists
In: the stepper motor (43) of heat simulation system (4) bottom passes through integrated motor control single-chip microcontroller (8) and PC master control platform
(7) it connects, and steering and speed including stepper motor (43) is controlled by the instruction of PC master control platform (7) sending.
3. the radiator performance assessment and areal calculation platform, feature according to claim 1 or 2 based on dot matrix heat source
Be: according to the actual situation, setting power of heat source and arrangement and environmental condition, the PC master control platform (7) by
It surveys on radiator (5) and covers fin method successively using heat-insulating material to test and obtain hot source temperature and radiator to be measured (5)
The data point of area fits curvilinear equation further according to data point, and acquires existing radiator by given temperature upper limit
Minimum heat face.
4. the radiator performance assessment and areal calculation platform, feature according to claim 3 based on dot matrix heat source exists
In: hot wet wind sensor (6) COMPREHENSIVE CALCULATING of PC master control platform (7) combination goes out under current humidity, temperature and wind speed to have scattered
Effective convection coefficient of hot device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN107991116A CN107991116A (en) | 2018-05-04 |
| CN107991116B true CN107991116B (en) | 2019-11-15 |
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| CN114076689B (en) * | 2020-08-20 | 2023-09-05 | 株洲中车奇宏散热技术有限公司 | Temperature rise detection method and equipment for heat pipe radiator |
| CN112595752B (en) * | 2021-03-02 | 2021-05-18 | 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 |
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| CN101936817A (en) * | 2009-06-30 | 2011-01-05 | 富准精密工业(深圳)有限公司 | Fastening device for use in radiator performance test and method for fastening radiator with heat source |
| CN102175714A (en) * | 2010-12-23 | 2011-09-07 | 烟台富耐克散热器有限公司 | Heat radiator and fan performance testing system |
| CN103175672B (en) * | 2013-02-28 | 2015-08-19 | 山东大学 | A kind of construction machinery radiator air tunnel and using method thereof simulating dust storm impact |
| CN103630851B (en) * | 2013-12-09 | 2015-12-30 | 天津工大瑞工光电技术研究院有限公司 | A kind of LED radiating module entire thermal resistance measuring method and measuring system |
| CN204758311U (en) * | 2015-06-05 | 2015-11-11 | 天津徊达科技有限公司 | CPU radiator capability test system |
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Granted publication date: 20191115 Termination date: 20211127 |