CN107300478B - Test platform for dynamic characteristics of SVG heat pipe radiator and application method thereof - Google Patents
Test platform for dynamic characteristics of SVG heat pipe radiator and application method thereof Download PDFInfo
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- CN107300478B CN107300478B CN201710701466.8A CN201710701466A CN107300478B CN 107300478 B CN107300478 B CN 107300478B CN 201710701466 A CN201710701466 A CN 201710701466A CN 107300478 B CN107300478 B CN 107300478B
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- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 40
- 230000008859 change Effects 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 230000035772 mutation Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 230000009191 jumping Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 5
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
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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
Abstract
The invention discloses a test platform for dynamic characteristics of SVG heat pipe radiator and an application method thereof, wherein the test platform comprises a temperature control air duct, a wind tunnel, a control unit and a controllable voltage stabilizing source, a temperature measuring module is arranged in the temperature control air duct, a controlled heat source is arranged on the temperature control air duct, a controllable fan is arranged at an air inlet of the wind tunnel, the test platform can rapidly and accurately simulate the working condition of sudden fault cargo load mutation, and the temperature and wind quantity parameters in the test platform are obtained in real time by the control unit; the application method of the test platform can simulate the load abrupt change of the SVG heat pipe radiator, and automatically acquire various curves of the dynamic characteristics of the SVG heat pipe radiator, including a first test temperature T of a single controlled heat source heating test 1 A first rotational speed v of a single-controlled fan acceleration test 1 Time change curve of (a), test actual measurement voltage U of controlled heat source and controlled fan linkage test 2 Second rotational speed v 2 The time change curves of the two are used for quickly determining the advantages and disadvantages of the dynamic characteristics of the tested heat pipe radiator.
Description
Technical Field
The invention relates to a SVG heat pipe radiator testing technology, in particular to a testing platform for dynamic characteristics of a SVG heat pipe radiator and an application method thereof, which are used for rapidly determining the advantages and disadvantages of the dynamic characteristics of the tested heat pipe radiator.
Background
At present, a water cooling type heat dissipation mode is adopted for the SVG with large capacity, and a water cooling system has potential safety hazard for the normal operation of the SVG. Forced air cooling is an ideal cooling mode for large-capacity SVG. In a forced air cooling system, a heat pipe radiator is a core part in a heat dissipation system. The mode has high heat dissipation efficiency and good reliability, and is safer to normal operation of SVG. For high-power SVG, sudden faults or sudden changes of load are very easy to cause the instantaneous rise of the heating value of the power module, and whether the heat rising sharply in the SVG can be timely radiated or not is required for the dynamic performance of the heat pipe radiator. The dynamic performance of a heat pipe radiator is therefore an important indicator for high capacity SVG heat pipe radiators. However, most of the performance test platforms of the current heat pipe radiators pay attention to the steady-state performance of the heat pipe radiators, and the dynamic performance of the heat pipe radiators is not paid attention to.
The test platform for the dynamic performance of the heat pipe is partially researched by a small number of universities and scientific research institutions at home and abroad, and the test platform for the performance of the heat pipe is mainly composed of an air duct, an air tunnel, an adjustable fan and a measuring module, but has the following defects: 1) Because two indexes of the current mainstream for measuring the performance of the heat pipe are the temperature difference of each pipe when the heat pipe is stably heated and the temperature rise of the heat pipe after the heat pipe is stably heated, the test platform aims at testing the static performance of the heat pipe radiator and cannot test the response speed of the heat pipe radiator when facing suddenly increased heat; 2) When the sudden fault is simulated, if the heating value of the heat source is manually and continuously adjusted, the sudden change of the heating value is difficult to realize, so that the sudden fault condition cannot be simulated; 3) In practical application, when the SVG faces sudden load change or sudden failure, the fan needs to adjust the air intake in order to protect the device, so that a system is needed to control the air intake and the heat productivity in a linkage manner during testing, and the air intake and the heat productivity can be displayed, but a similar control device is not added in the current testing platform. Therefore, for the working characteristics of a high-capacity SVG heat pipe radiator, a device and a method for measuring heat pipe radiator, which are capable of accurately simulating sudden load change, automatic, interactive and simple to operate, are needed.
Disclosure of Invention
The invention aims to solve the technical problems: aiming at the problems in the prior art, the test platform for the dynamic characteristics of the SVG heat pipe radiator and the application method thereof are provided, the test platform for the dynamic characteristics of the SVG heat pipe radiator can quickly and accurately simulate the working condition of sudden fault cargo load mutation, and the temperature and air quantity parameters in the test platform are obtained in real time in a control unit; the application method of the test platform can simulate the load abrupt change of the SVG heat pipe radiator, and automatically acquire various curves of the dynamic characteristics of the SVG heat pipe radiator, including a first test temperature T of a single controlled heat source heating test 1 A first rotational speed v of a single-controlled fan acceleration test 1 Time change curve of (a), test actual measurement voltage U of controlled heat source and controlled fan linkage test 2 Second rotational speed v 2 The time change curves of the two can identify the merits of the SVG heat pipe radiator.
In order to solve the technical problems, the invention adopts the following technical scheme:
on the one hand, the invention provides a test platform for dynamic characteristics of SVG heat pipe radiators, which comprises a temperature control air duct, an air tunnel, a control unit and a controllable voltage stabilizing source, wherein the temperature control air duct and the air tunnel are mutually connected in a sealing way, a first temperature measuring module and a second temperature measuring module are arranged in the temperature control air duct, a controlled heat source is arranged on the temperature control air duct at a position, where the heat pipe radiator to be tested is placed, of the temperature control air duct, the heat pipe radiator to be tested is positioned in the temperature control air duct and is arranged between the first temperature measuring module and the second temperature measuring module, a controllable fan is arranged at an air inlet of the air tunnel, a rectifying plate and an air volume metering module are arranged in the air tunnel, the output ends of the first temperature measuring module, the second temperature measuring module and the air volume metering module are respectively connected with the input end of the control unit, and the control end of the controlled heat source is connected with the control output end of the control unit through the controllable voltage stabilizing source, and the control end of the controllable fan is connected with the control output end of the control unit.
Preferably, the area of the temperature control air duct, where the heat pipe radiator to be measured is placed, is a structure formed by three metal plates, the cross section of which is in a shape like a Chinese character kou, one side of the structure is provided with an opening, a substrate for placing the heat pipe radiator to be measured is arranged at the opening at one side of the structure, and the heating part of the controlled heat source is arranged at the outer side of the substrate.
Preferably, a heat-conducting silicone grease is arranged between the controlled heat source and the substrate.
Preferably, the air quantity metering module is arranged between the rectifying plates.
Preferably, the control unit comprises an upper computer, a lower computer, a frequency converter and a DC/DC controller, wherein the lower computer is respectively connected with the upper computer, the frequency converter and the DC/DC controller, the output end of the frequency converter is connected with the control end of the controllable fan, and the output end of the DC/DC controller is connected with the control end of the controllable voltage stabilizing source.
Preferably, the control unit further comprises an ambient temperature sensor, and the output end of the ambient temperature sensor is connected with the lower computer.
On the other hand, the invention also provides an application method of the test platform for dynamic characteristics of the SVG heat pipe radiator, which comprises the following implementation steps:
1) The control unit pre-controls the controllable voltage stabilizing source to output initial voltage U 0 To the controlled heat source so that the controlled heat source is at an initial voltage U 0 The SVG heat pipe radiator to be tested is heated by corresponding output power, the control unit detects the heating temperature of the SVG heat pipe radiator to be tested through the second temperature measuring module, and the initial temperature T is recorded after the temperature is stable 0 The method comprises the steps of carrying out a first treatment on the surface of the Skipping to execute the step 2) when the mutation test is needed;
2) The control unit increases the output voltage of the controllable voltage stabilizing source through the PI regulator until the output voltage of the controllable voltage stabilizing source reaches the preset abrupt change test voltage U 1 Recording a first test temperature T of the second temperature measuring module in a test process 1 Generating a first test temperature T 1 Outputting and jumping to execute the step 3);
3) The control unit detects the controllable fanThe initial rotating speed v of the controllable fan is obtained 0 Maintaining the output voltage of the controllable voltage stabilizing source as the abrupt test voltage U 1 The control unit increases the rotating speed of the controllable fan through the PI regulator until the temperature output by the second temperature measuring module is equal to the initial temperature T 0 Recording a first rotating speed v of the controllable fan in the test process 1 Generates a first rotation speed v 1 And outputting the time change curve of (2);
4) The control unit outputs a temperature equal to the initial temperature T by the second temperature measuring module 0 To the aim, the rotating speed of the controllable fan is increased through the PI regulator, and the output voltage of the controllable voltage stabilizing source is reduced through the PI regulator until the rotating speed of the controllable fan is restored to the initial rotating speed v 0 And the output voltage of the controllable voltage stabilizing source drops to the initial voltage U 0 Recording the test actual measurement voltage U of the controllable voltage stabilizing source in the test process 2 Second rotating speed v of controllable fan in test process 2 Generating a test actual measurement voltage U 2 Second rotational speed v 2 And outputting the time change curves of the two.
The test platform for the dynamic characteristics of the SVG heat pipe radiator has the following advantages: the invention comprises a temperature control air duct, an air tunnel, a control unit and a controllable voltage stabilizing source, wherein the temperature control air duct and the air tunnel are in sealing connection, a first temperature measuring module and a second temperature measuring module are arranged in the temperature control air duct, a controlled heat source is arranged on the temperature control air duct and positioned in a region where a heat pipe radiator to be tested is arranged, the heat pipe radiator to be tested is positioned in the temperature control air duct and is arranged between the first temperature measuring module and the second temperature measuring module, a controllable fan is arranged at an air inlet of the air tunnel, a rectifying plate and an air volume metering module are arranged in the air tunnel, the output ends of the first temperature measuring module, the second temperature measuring module and the air volume metering module are respectively connected with the input end of the control unit, the control end of the controlled heat source is connected with the control output end of the control unit through the controllable voltage stabilizing source, the control end of the controllable fan is connected with the control output end of the control unit, the control unit can rapidly and accurately simulate the abrupt fault load mutation working condition through the structure, and the temperature and the air volume parameters in the test platform can be rapidly and accurately obtained in real time by the control unit to determine the dynamic characteristics of the heat pipe radiator to be tested.
The application method of the test platform for the dynamic characteristics of the SVG heat pipe radiator has the following advantages: the application method of the test platform for the dynamic characteristics of the SVG heat pipe radiator can simulate the load abrupt change of the SVG heat pipe radiator, automatically acquire various curves of the dynamic characteristics of the SVG heat pipe radiator, and comprises a first test temperature T of a single controlled heat source heating test 1 A first rotational speed v of a single-controlled fan acceleration test 1 Time change curve of (a), test actual measurement voltage U of controlled heat source and controlled fan linkage test 2 Second rotational speed v 2 The time change curves of the two have the advantages of comprehensive functions and high reliability, and the rotating speed of the controllable fan is regulated through the PI regulator, and the output voltage of the controllable voltage stabilizing source is regulated through the PI regulator, so that the overshoot of the controllable fan and the controllable voltage stabilizing source is ensured, good protection effects on the controllable fan and the controllable voltage stabilizing source can be achieved, and the controllable fan and the controllable voltage stabilizing source are ensured to have longer service lives; the first test temperature T of the single controlled heat source heating test obtained by the application method of the test platform of the dynamic characteristics of the SVG heat pipe radiator of the embodiment 1 A first rotational speed v of a single-controlled fan acceleration test 1 Time change curve of (a), test actual measurement voltage U of controlled heat source and controlled fan linkage test 2 Second rotational speed v 2 The time change curves of the two can quickly and effectively measure the dynamic performance of the heat pipe radiator to be measured under the condition of abrupt load change.
Drawings
Fig. 1 is a schematic diagram of a frame structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of a controlled heat source mounting structure according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a curve obtained in an embodiment of the present invention.
Legend description: 1. a temperature control air duct; 11. a first temperature measurement module; 12. the second temperature measuring module; 13. a controlled heat source; 14. a substrate; 2. wind tunnel; 20. a controllable fan; 21. a rectifying plate; 22. the air quantity metering module; 3. a control unit; 31. an upper computer; 32. a lower computer; 33. a frequency converter; 34. a DC/DC controller; 35. an ambient temperature sensor; 4. a controllable regulated voltage source.
Detailed Description
As shown in fig. 1, the test platform for dynamic characteristics of the SVG heat pipe radiator according to this embodiment includes a temperature control air duct 1, an air duct 2, a control unit 3 and a controllable voltage stabilizing source 4, where the temperature control air duct 1 and the air duct 2 are connected in a sealing manner, a first temperature measuring module 11 and a second temperature measuring module 12 are disposed in the temperature control air duct 1, a controlled heat source 13 is disposed on a region where the heat pipe radiator to be tested is disposed on the temperature control air duct 1, the heat pipe radiator to be tested is disposed in the temperature control air duct 1 and between the first temperature measuring module 11 and the second temperature measuring module 12, a controllable fan 20 is disposed at an air inlet of the air duct 2, a rectifying plate 21 and an air volume metering module 22 are disposed in the air duct 2, output ends of the first temperature measuring module 11, the second temperature measuring module 12 and the air volume metering module 22 are respectively connected to an input end of the control unit 3, and a control end of the controlled heat source 13 is connected to a control output end of the control unit 3 through the controllable voltage stabilizing source 4, and a control end of the controllable fan 20 is connected to a control output end of the control unit 3. The test platform for dynamic characteristics of the SVG heat pipe radiator of the embodiment can realize step change of the output heat of the controlled heat source 13, and the maximum power of the controlled heat source 13 is not lower than 6kW. The test platform for dynamic characteristics of the SVG heat pipe radiator of the present embodiment can also control the rotation speed of the controllable fan 20 according to the air volume and temperature closed loop linkage measured by the air volume metering module 22, and the rotation speed of the controllable fan 20 can be adjusted by an experimenter through the upper computer 31.
As shown in fig. 2, the temperature control air duct 1 is in a structure formed by three metal plates with a cross section of a shape like a Chinese character kou and an opening at one side, a substrate 14 for placing the heat pipe radiator to be tested is arranged at the opening at one side, and a heating component of the controlled heat source 13 is arranged at the outer side of the substrate 14. The heat pipe radiator to be measured is placed in the region of the temperature control air duct 1 where the heat pipe radiator to be measured is placed, and the substrate 14 is attached to the heating part of the controlled heat source 13, so that the heat of the heating part is well transferred to the substrate 14. In this embodiment, a heat conductive silicone grease is provided between the controlled heat source 13 and the substrate 14, so that heat of the heat-generating portion is further transferred to the substrate 14 well.
As shown in fig. 1, the air volume metering module 22 is disposed between the rectifying plates 21. In this embodiment, the rectifying plates 21 are arranged in two groups, and the two groups are placed in parallel with each other in the wind tunnel 2, and the air volume metering module 22 is arranged between the two groups of rectifying plates 21.
As shown in fig. 1, the control unit 3 includes an upper computer 31, a lower computer 32, a frequency converter 33 and a DC/DC controller 34, the lower computer 32 is respectively connected with the upper computer 31, the frequency converter 33 and the DC/DC controller 34, the output end of the frequency converter 33 is connected with the control end of the controllable fan 20, and the output end of the DC/DC controller 34 is connected with the control end of the controllable voltage stabilizing source 4. In this embodiment, the upper computer 31 is a user interface based on a WINDOWS system, and communicates with the lower computer 32. The lower computer 32 is composed of a single chip microcomputer as a main body and is respectively connected with a frequency converter 33 and a DC/DC controller 34. The first temperature measuring module 11 and the second temperature measuring module 12 are thermocouples, the temperatures measured by the first temperature measuring module 11 and the second temperature measuring module 12 are fed back to the lower computer 32 in the control unit 3, the rotating speed of the controllable fan 20 is controlled by the frequency converter 33, the output frequency of the frequency converter 33 is controlled by the lower computer 32, and the data measured by the air quantity measuring module 22 are fed back to the lower computer 32. The test platform for dynamic characteristics of the SVG heat pipe radiator of the embodiment has two modes: (1) a coordinated adjustment mode; (2) The independent adjustment mode can be selected by a tester in the interface of the upper computer 31 to be singly or jointly executed.
As shown in fig. 1, the control unit 3 further includes an ambient temperature sensor 35, and an output end of the ambient temperature sensor 35 is connected to the lower computer 32, so as to detect an ambient temperature and display an output as an experimental reference through the upper computer 31.
In this embodiment, the controllable voltage stabilizing source 4 is composed of a chopper circuit structure, the output voltage is 0-500 v, the output current is 0-120 a, and the duty ratio is controlled by the DC/DC controller 34.
As an example of single or combined execution of the two modes, i.e., the linkage adjustment mode and the independent adjustment mode, the implementation steps of the application method of the test platform for the dynamic characteristics of the SVG heat pipe radiator in this embodiment include:
1) The control unit 3 controls the controllable voltage stabilizing source 4 to output an initial voltage U in advance 0 To the controlled heat source 13 such that the controlled heat source 13 is at an initial voltage U 0 The SVG heat pipe radiator to be tested is heated by the corresponding output power, the control unit 3 detects the heating temperature of the SVG heat pipe radiator to be tested through the second temperature measuring module 12 and records the initial temperature T after the temperature is stable 0 The method comprises the steps of carrying out a first treatment on the surface of the Skipping to execute the step 2) when the mutation test is needed;
2) The control unit 3 increases the output voltage of the controllable voltage stabilizing source 4 through the PI regulator until the output voltage of the controllable voltage stabilizing source 4 reaches the preset abrupt change test voltage U 1 Recording the first test temperature T of the second temperature measuring module 12 in the test process 1 Generating a first test temperature T 1 Outputting and jumping to execute the step 3);
3) The control unit 3 detects the rotation speed of the controllable fan 20 to obtain the initial rotation speed v of the controllable fan 20 0 Keeping the output voltage of the controllable voltage stabilizing source 4 as the abrupt test voltage U 1 The control unit 3 increases the rotating speed of the controllable fan 20 through the PI regulator until the temperature output by the second temperature measuring module 12 is equal to the initial temperature T 0 The first rotation speed v of the controllable fan 20 during the test is recorded 1 Generates a first rotation speed v 1 And outputting the time change curve of (2);
4) The temperature output by the control unit 3 through the second temperature measuring module 12 is equal to the initial temperature T 0 To this end, the rotational speed of the controllable fan 20 is increased by the PI regulator and the output voltage of the controllable regulated power supply 4 is simultaneously reduced by the PI regulator until the rotational speed of the controllable fan 20 returns to the initial rotational speed v 0 And the output voltage of the controllable voltage stabilizing source 4 drops to the initial voltage U 0 Recording the test actual measurement voltage U of the controllable voltage stabilizing source 4 in the test process 2 And a second rotational speed v of the controllable fan 20 during the test 2 Generating a test actual measurement voltage U 2 Second rotational speed v 2 And outputting the time change curves of the two.
The curves obtained in this embodiment are shown in fig. 3, where the x-axis is the time T, the y-axis T is the temperature detected by the second temperature measurement module 12, U is the voltage output by the controllable voltage stabilizing source 4, and v is the rotation speed of the controllable fan 20. Referring to fig. 3, it can be seen that the experimental step design continuity of the application method steps 2) to 4) of the test platform for dynamic characteristics of the SVG heat pipe radiator in this embodiment is good, so that the test efficiency can be effectively improved, and the test energy consumption can be saved.
The application method of the test platform for the dynamic characteristics of the SVG heat pipe radiator of the embodiment can simulate the load abrupt change of the SVG heat pipe radiator, automatically acquire various curves of the dynamic characteristics of the SVG heat pipe radiator, and comprises a first test temperature T of a single controlled heat source heating test 1 A first rotational speed v of a single-controlled fan acceleration test 1 Time change curve of (a), test actual measurement voltage U of controlled heat source and controlled fan linkage test 2 Second rotational speed v 2 The time change curves of the two have the advantages of comprehensive functions and high reliability, and the rotating speed of the controllable fan 20 is regulated through the PI regulator, and the output voltage of the controllable voltage stabilizing source 4 is regulated through the PI regulator, so that the overshoot of the controllable fan 20 and the controllable voltage stabilizing source 4 is ensured, a good protection effect can be achieved on the controllable fan 20 and the controllable voltage stabilizing source 4, and the controllable fan 20 and the controllable voltage stabilizing source 4 are ensured to have longer service lives. The first test temperature T of the single controlled heat source heating test obtained by the application method of the test platform of the dynamic characteristics of the SVG heat pipe radiator of the embodiment 1 A first rotational speed v of a single-controlled fan acceleration test 1 Time change curve of (a), test actual measurement voltage U of controlled heat source and controlled fan linkage test 2 Second rotational speed v 2 The time change curves of the two can quickly and effectively measure the dynamic performance of the heat pipe radiator to be measured under the condition of abrupt load change.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. An application method of a test platform for dynamic characteristics of SVG heat pipe radiators is characterized in that: the test platform for dynamic characteristics of the SVG heat pipe radiator comprises a temperature control air duct (1), an air duct (2), a control unit (3) and a controllable voltage stabilizing source (4), wherein the temperature control air duct (1) and the air duct (2) are in sealing connection with each other, a first temperature measuring module (11) and a second temperature measuring module (12) are arranged in the temperature control air duct (1), a controlled heat source (13) is arranged on the temperature control air duct (1) in a region where the heat pipe radiator to be tested is arranged, the heat pipe radiator to be tested is arranged in the temperature control air duct (1) and between the first temperature measuring module (11) and the second temperature measuring module (12), a controllable fan (20) is arranged at an air inlet of the air duct (2), a rectifying plate (21) and an air volume metering module (22) are arranged in the air duct (2), output ends of the first temperature measuring module (11), the second temperature measuring module (12) and the air volume metering module (22) are respectively connected with an input end of the control unit (3), and a control end of the controlled heat source (13) is connected with the control end of the control unit (3) through the controllable fan (20); the application method comprises the following steps:
1) The control unit (3) controls the controllable voltage stabilizing source (4) to output the initial voltage U in advance 0 To the controlled heat source (13) such that the controlled heat source (13) is at an initial voltage U 0 The SVG heat pipe radiator to be tested is heated by corresponding output power, the control unit (3) detects the heating temperature of the SVG heat pipe radiator to be tested through the second temperature measuring module (12) and records the initial temperature T after the temperature is stable 0 The method comprises the steps of carrying out a first treatment on the surface of the Skipping to execute the step 2) when the mutation test is needed;
2) The control unit (3) increases the output voltage of the controllable voltage stabilizing source (4) through the PI regulator until the output voltage of the controllable voltage stabilizing source (4) reaches the preset abrupt change test voltage U 1 Recording a first test temperature T of the second temperature measuring module (12) during the test 1 Raw, give birth toFirst test temperature T 1 Outputting and jumping to execute the step 3);
3) The control unit (3) detects the rotating speed of the controllable fan (20) to obtain the initial rotating speed v of the controllable fan (20) 0 Maintaining the output voltage of the controllable voltage stabilizing source (4) as the abrupt test voltage U 1 The control unit (3) increases the rotating speed of the controllable fan (20) through the PI regulator until the temperature output by the second temperature measuring module (12) is equal to the initial temperature T 0 Recording a first rotational speed v of the controllable fan (20) during the test 1 Generates a first rotation speed v 1 And outputting the time change curve of (2);
4) The control unit (3) uses the temperature output by the second temperature measuring module (12) to be equal to the initial temperature T 0 To this end, the rotational speed of the controllable fan (20) is increased by means of a PI regulator, and the output voltage of the controllable regulated power supply (4) is reduced by means of the PI regulator until the rotational speed of the controllable fan (20) returns to the initial rotational speed v 0 And the output voltage of the controllable voltage stabilizing source (4) drops to an initial voltage U 0 Recording the test actual measurement voltage U of the controllable voltage stabilizing source (4) in the test process 2 And a second rotational speed v of the controllable fan (20) during the test 2 Generating a test actual measurement voltage U 2 Second rotational speed v 2 And outputting the time change curves of the two.
2. The method for applying the test platform for dynamic characteristics of the SVG heat pipe radiator according to claim 1, wherein the method comprises the following steps: the temperature control air duct (1) is provided with a substrate (14) for placing the heat pipe radiator to be tested, the region where the heat pipe radiator to be tested is placed is a structure formed by three metal plates, the cross section of the structure is in a shape like a Chinese character kou, one side of the structure is provided with an opening, the opening at one side of the structure is provided with a substrate (14) for placing the heat pipe radiator to be tested, and a heating part of the controlled heat source (13) is arranged on the outer side of the substrate (14).
3. The method for applying the test platform for dynamic characteristics of the SVG heat pipe radiator according to claim 1, wherein the method comprises the following steps: and heat conduction silicone grease is arranged between the controlled heat source (13) and the substrate (14).
4. The method for applying the test platform for dynamic characteristics of the SVG heat pipe radiator according to claim 1, wherein the method comprises the following steps: the air quantity metering module (22) is arranged between the rectifying plates (21).
5. The method for applying the test platform for dynamic characteristics of the SVG heat pipe radiator according to claim 1, wherein the method comprises the following steps: the control unit (3) comprises an upper computer (31), a lower computer (32), a frequency converter (33) and a DC/DC controller (34), wherein the lower computer (32) is respectively connected with the upper computer (31), the frequency converter (33) and the DC/DC controller (34), the output end of the frequency converter (33) is connected with the control end of the controllable fan (20), and the output end of the DC/DC controller (34) is connected with the control end of the controllable voltage stabilizing source (4).
6. The method for applying the test platform for dynamic characteristics of the SVG heat pipe radiator according to claim 5, wherein the method comprises the steps of: the control unit (3) further comprises an ambient temperature sensor (35), and the output end of the ambient temperature sensor (35) is connected with the lower computer (32).
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|---|---|---|---|---|
| KR20080113631A (en) * | 2007-06-25 | 2008-12-31 | 엘지전자 주식회사 | Heat transfer testing apparatus of heat sink and method |
| CN102331439A (en) * | 2011-09-29 | 2012-01-25 | 王加龙 | Test device for radiating property of cooler |
| CN204027800U (en) * | 2014-07-01 | 2014-12-17 | 哈尔滨电机厂有限责任公司 | gas cooler performance testing device |
| CN207036455U (en) * | 2017-08-16 | 2018-02-23 | 国网湖南省电力公司 | A kind of test platform of SVG heat-pipe radiators dynamic characteristic |
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2017
- 2017-08-16 CN CN201710701466.8A patent/CN107300478B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080113631A (en) * | 2007-06-25 | 2008-12-31 | 엘지전자 주식회사 | Heat transfer testing apparatus of heat sink and method |
| CN102331439A (en) * | 2011-09-29 | 2012-01-25 | 王加龙 | Test device for radiating property of cooler |
| CN204027800U (en) * | 2014-07-01 | 2014-12-17 | 哈尔滨电机厂有限责任公司 | gas cooler performance testing device |
| CN207036455U (en) * | 2017-08-16 | 2018-02-23 | 国网湖南省电力公司 | A kind of test platform of SVG heat-pipe radiators dynamic characteristic |
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