CN101349613A - Checking apparatus of heat resistance test device - Google Patents
Checking apparatus of heat resistance test device Download PDFInfo
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- CN101349613A CN101349613A CNA2007100249457A CN200710024945A CN101349613A CN 101349613 A CN101349613 A CN 101349613A CN A2007100249457 A CNA2007100249457 A CN A2007100249457A CN 200710024945 A CN200710024945 A CN 200710024945A CN 101349613 A CN101349613 A CN 101349613A
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- probe
- resistance test
- heat resistance
- thermal resistance
- calibration equipment
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Abstract
The invention discloses a calibration device of a thermal resistance test device, which comprises a heat conducting bottom board, a standard thermal resistance block which is arranged on the heat conducting bottom board, a first probe holding groove is arranged on the bottom surface of the standard thermal resistance block, a second probe holding groove is arranged on one surface of the standard thermal resistance block which is opposite to the bottom surface, a first and a second temperature probes are respectively arranged in the first and the second probe holding grooves, a radiator which is arranged on the standard thermal resistance block, a draught fan which is arranged on the radiator, a controlled power cord which is electrically connected with the draught fan is arranged on the draught fan, a controller which is provided with a first probe connecting portion, a second probe connecting portion, a third probe connecting portion and a third temperature probe, and the first, the second and the third probe connecting portions are respectively connected with the first temperature probe, the second temperature probe and the third temperature probe. The calibration device of a thermal resistance test device can be utilized to check a thermal resistance test device.
Description
[technical field]
The present invention relevant a kind of calibration equipment, the particularly calibration equipment of relevant a kind of apparatus of heat resistance test.
[background technology]
Present apparatus of heat resistance test, especially the apparatus of heat resistance test of the heat sinks electronic products device that in the industry cycle still lacks a kind of precision is used for the verification of the equipment of doing itself, can only between each tester table, do simple contrast test with general heat abstractor, reduce the test error between each test cell whereby, the method has following drawback:
1, test environment such as environment temperature, humidity, tester table causes that by the variations such as thermal power of contact interface the test comparison data are not accurate enough;
2, testing apparatus is not done the verification of unified standard, and test data lacks versatility, and therefore the data of measuring can only be done the contrast use, can not represent real thermal resistance value;
3, different testing apparatuss may be because the method difference of image data, and the architectural feature that may use is different and have a systematic error that does not wait.
In view of this, be necessary to develop a kind of calibration equipment of apparatus of heat resistance test in fact, utilize the calibration equipment of this apparatus of heat resistance test can realize verification, thereby solve apparatus of heat resistance test because above-mentioned former thereby cause the inaccurate problem of test result to apparatus of heat resistance test.
[summary of the invention]
Therefore, the object of the present invention is to provide a kind of calibration equipment of apparatus of heat resistance test, utilize the calibration equipment of this apparatus of heat resistance test can realize verification, thereby solve because the verification of unified standard is not done in test environment influence, testing apparatus, the method difference of different testing apparatus image data causes the inaccurate problems of test result to apparatus of heat resistance test.
For reaching above-mentioned purpose, the calibration equipment of apparatus of heat resistance test of the present invention, this device can be used for the verification to apparatus of heat resistance test, and this device comprises:
One conductive sole plate;
One standard thermal resistance piece is located on the above-mentioned conductive sole plate;
One heating radiator is located on the above-mentioned standard thermal resistance piece;
One fan is located on the above-mentioned heating radiator, and this fan is provided with a controlled source line that electrically connects with it;
One controller which is provided with one first probe connecting portion, one second probe connecting portion, one the 3rd probe connecting portion, one the 3rd temp probe.
Preferably, above-mentioned standard thermal resistance piece bottom surface is provided with one first probe storage tank, be provided with one first temp probe in this first probe storage tank, this standard thermal resistance piece relatively simultaneously is provided with one second probe storage tank in the bottom surface, is provided with one second temp probe in this second probe storage tank
Preferably, the above-mentioned first probe connecting portion is connected with first temp probe, the second probe connecting portion is connected with second temp probe, the 3rd probe connecting portion is connected with the 3rd temp probe.
Preferably, above-mentioned heating radiator bottom is provided with one first convex edge, above-mentioned conductive sole plate top is provided with one second convex edge, and the calibration equipment of apparatus of heat resistance test also comprises a heat-barrier material, and above-mentioned standard thermal resistance piece, first convex edge, second convex edge all are located in this heat-barrier material.
Preferably, above-mentioned heat-barrier material is a glass fibre, and all the thermal resistance than standard thermal resistance piece is little with heating radiator for above-mentioned conductive sole plate.
Compared to prior art, the calibration equipment of apparatus of heat resistance test of the present invention, its equivalent thermal resistance can reach in a period of time on the predefined stationary value, come the verification apparatus of heat resistance test can realize verification with this, thereby solve because the verification of unified standard is not done in test environment influence, testing apparatus, the method difference of different testing apparatus image data causes the inaccurate problems of test result to apparatus of heat resistance test.
For purpose of the present invention, structural attitude and function thereof are had further understanding, conjunction with figs. is described in detail as follows now:
[description of drawings]
Fig. 1 illustrates the three-dimensional assembling assumption diagram of calibration equipment one preferred embodiment of apparatus of heat resistance test of the present invention.
Fig. 2 illustrates the front cut-away view of calibration equipment one preferred embodiment of apparatus of heat resistance test of the present invention.
Fig. 3 illustrates the three-dimensional decomposition chart of calibration equipment one preferred embodiment of apparatus of heat resistance test of the present invention.
Fig. 4 illustrates the partial structurtes figure of calibration equipment one preferred embodiment of apparatus of heat resistance test of the present invention.
[embodiment]
Please consult Fig. 1, Fig. 2, Fig. 3, Fig. 4 jointly, it illustrates the partial structurtes figure into calibration equipment one preferred embodiment of the three-dimensional decomposition chart of calibration equipment one preferred embodiment of the front cut-away view of calibration equipment one preferred embodiment of the three-dimensional assembling assumption diagram of calibration equipment one preferred embodiment of apparatus of heat resistance test of the present invention, apparatus of heat resistance test of the present invention, apparatus of heat resistance test of the present invention, apparatus of heat resistance test of the present invention respectively.
The calibration equipment of apparatus of heat resistance test of the present invention, this device can be used for the verification to apparatus of heat resistance test, and with this preferred embodiment, this device comprises:
One conductive sole plate 1;
One standard thermal resistance piece 2, be located on the above-mentioned conductive sole plate 1, these standard thermal resistance piece 2 bottom surfaces are provided with one first probe storage tank 22, be provided with one first temp probe 5 in this first probe storage tank 22, this standard thermal resistance piece 2 relatively simultaneously is provided with one second probe storage tank 21 in the bottom surface, be provided with one second temp probe 6 in this second probe storage tank 21;
One heating radiator 3 is located on the above-mentioned standard thermal resistance piece 2;
One fan 4 is located on the above-mentioned heating radiator 3, and this fan 4 is provided with a controlled source line 40 that electrically connects with it;
One controller 8, which is provided with one first probe connecting portion 81, one second probe connecting portion 82, one the 3rd probe connecting portion 83, one the 3rd temp probe 7, this first probe connecting portion 81 is connected with first temp probe 5, the second probe connecting portion 82 is connected with second temp probe 6, the 3rd probe connecting portion 83 is connected with the 3rd temp probe 7.
In present embodiment, above-mentioned heating radiator 3 bottoms are provided with one first convex edge 30, above-mentioned conductive sole plate 1 top is provided with one second convex edge 10, and the calibration equipment of this apparatus of heat resistance test also comprises a heat-barrier material 9, and above-mentioned standard thermal resistance piece 2, first convex edge 30, second convex edge 10 all are located in this heat-barrier material.
In present embodiment, above-mentioned heat-barrier material 9 is a glass fibre, and above-mentioned heating radiator 3 has fin, and all the thermal resistance than standard thermal resistance piece is little with heating radiator 3 for above-mentioned conductive sole plate 1.
Wherein, fan 4 is installed on the heating radiator 3 by general fashion, and heating radiator 3 is done the forced convertion heat radiation under the effect of fan 4; Thermal resistance piece 2 and conductive sole plate 1, first temp probe 5 that is provided with between the heating radiator 3, second temp probe 6, the temperature that is used for 2 two faces of measurement standard thermal resistance piece, fan 4 tops are provided with the 3rd temp probe 7, be used for measuring the initial temperature that is blown into heating radiator 3 air, be also referred to as the environment temperature of heating radiator 3, controller 8, be responsible for providing fan 4 power supplys, gather the signal of three temp probes, wherein fan 4 power supplys are controlled sources, the output voltage limited size is in controller 8, electrically connect fans 4 and control fan 4 by controlled source line 40, and then control whole device and in a period of time, reach a predefined stationary value according to the signal of above-mentioned three temp probe collections.Increase by first convex edge 30 on second convex edge 10 and the above-mentioned heating radiator 3 on the above-mentioned conductive sole plate 1, and the setting of above-mentioned heat-barrier material 9, heat-barrier material 9 is a glass fibre herein, all is the precision for whole device.And conductive sole plate 1 is all fine copper with heating radiator 3 material therefors, and the material of standard thermal resistance piece 2 is a fine aluminium.
Ignore the uneven correction factor of material, the thermal resistance of establishing conductive sole plate 1 is R
0, the cross-sectional area of standard thermal resistance piece 2 is A
0, length is X
0, coefficient of heat conductivity is K
0, the temperature difference at its two ends is T
0The temperature difference of heating radiator 3 input ends and environment end is T, and the thermal resistance of heating radiator 3 is Rs, and the calibration equipment entire thermal resistance is Rth, then:
Rs＝(T*X
0)/(K
0*A
0*T
0)；
Rth＝R
0+Rs+X
0/(K
0*A
0)
It is predetermined value that controller 8 makes Rth by the voltage of controlling supply fan 4.Thereby the thermal resistance that realizes whole device is constant.Because the coefficient of heat conductivity difference of same material under different temperatures, so controller 8 also needs the entire thermal resistance of just calibrating whole device by the predetermined variation rule according to the temperature of standard thermal resistance piece 2.
And the calibration equipment of this apparatus of heat resistance test is set at a predetermined thermal resistance, and its thermal resistance is tested obtaining a test thermal resistance on apparatus of heat resistance test to be verified, carry out verification by the comparison of predetermined thermal resistance and test thermal resistance and then to apparatus of heat resistance test to be verified.
Claims (10)
1, a kind of calibration equipment of apparatus of heat resistance test, this device can be used for the verification to apparatus of heat resistance test, it is characterized in that, and this device comprises:
One conductive sole plate;
One standard thermal resistance piece is located on the above-mentioned conductive sole plate;
One heating radiator is located on the above-mentioned standard thermal resistance piece;
One fan is located on the above-mentioned heating radiator, and this fan is provided with a controlled source line that electrically connects with it;
One controller which is provided with one first probe connecting portion, one second probe connecting portion, one the 3rd probe connecting portion, one the 3rd temp probe.
2, the calibration equipment of apparatus of heat resistance test as claimed in claim 1, it is characterized in that, above-mentioned standard thermal resistance piece bottom surface is provided with one first probe storage tank, be provided with one first temp probe in this first probe storage tank, this standard thermal resistance piece relatively simultaneously is provided with one second probe storage tank in the bottom surface, be provided with one second temp probe in this second probe storage tank.
3, the calibration equipment of apparatus of heat resistance test as claimed in claim 2 is characterized in that, this first probe connecting portion is connected with first temp probe, the second probe connecting portion is connected with second temp probe, the 3rd probe connecting portion is connected with the 3rd temp probe.
4, the calibration equipment of apparatus of heat resistance test as claimed in claim 3 is characterized in that, above-mentioned heating radiator bottom is provided with one first convex edge.
5, the calibration equipment of apparatus of heat resistance test as claimed in claim 3 is characterized in that, above-mentioned conductive sole plate top is provided with one second convex edge.
As the calibration equipment of claim 3 or 4 or 5 described apparatus of heat resistance test, it is characterized in that 6, the calibration equipment of apparatus of heat resistance test also comprises a heat-barrier material.
7, the calibration equipment of apparatus of heat resistance test as claimed in claim 6 is characterized in that, above-mentioned standard thermal resistance piece is located in this heat-barrier material.
8, the calibration equipment of apparatus of heat resistance test as claimed in claim 6 is characterized in that, above-mentioned first convex edge is located in this heat-barrier material.
9, the calibration equipment of apparatus of heat resistance test as claimed in claim 6 is characterized in that, above-mentioned second convex edge is located in this heat-barrier material.
10, the calibration equipment of apparatus of heat resistance test as claimed in claim 6 is characterized in that, above-mentioned heat-barrier material is a glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100249457A CN101349613A (en) | 2007-07-16 | 2007-07-16 | Checking apparatus of heat resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100249457A CN101349613A (en) | 2007-07-16 | 2007-07-16 | Checking apparatus of heat resistance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101349613A true CN101349613A (en) | 2009-01-21 |
Family
ID=40268485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100249457A Pending CN101349613A (en) | 2007-07-16 | 2007-07-16 | Checking apparatus of heat resistance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101349613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075820A (en) * | 2014-07-15 | 2014-10-01 | 昆山联德精密机械有限公司 | Automatic temperature measuring device of heat dissipation module |
-
2007
- 2007-07-16 CN CNA2007100249457A patent/CN101349613A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075820A (en) * | 2014-07-15 | 2014-10-01 | 昆山联德精密机械有限公司 | Automatic temperature measuring device of heat dissipation module |
| CN104075820B (en) * | 2014-07-15 | 2017-01-11 | 联德精密材料（中国）股份有限公司 | Automatic temperature measuring device of heat dissipation module |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090121 |