CN113432898A - Multipoint crimping type temperature measurement copper block of radiator, performance testing device and testing method - Google Patents
Multipoint crimping type temperature measurement copper block of radiator, performance testing device and testing method Download PDFInfo
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- CN113432898A CN113432898A CN202110520104.5A CN202110520104A CN113432898A CN 113432898 A CN113432898 A CN 113432898A CN 202110520104 A CN202110520104 A CN 202110520104A CN 113432898 A CN113432898 A CN 113432898A
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- 238000012360 testing method Methods 0.000 title claims abstract description 78
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 53
- 239000010949 copper Substances 0.000 title claims abstract description 53
- 238000009529 body temperature measurement Methods 0.000 title claims description 31
- 238000002788 crimping Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000009413 insulation Methods 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010998 test method Methods 0.000 abstract 1
- 238000011056 performance test Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 238000003466 welding Methods 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
- G01K17/08—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature
- G01K17/10—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device based upon measurement of temperature difference or of a temperature between an inlet and an outlet point, combined with measurement of rate of flow of the medium if such, by integration during a certain time-interval
-
- 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
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a multipoint compression joint type temperature measuring copper block of a radiator, a performance testing device and a testing method. The invention has scientific and reasonable design, can comprehensively test multiple technical indexes of mechanical strength, flow resistance, thermal resistance and temperature equalization characteristic of the radiator, and has simple water path connection, convenient operation of the test method and high test precision.
Description
Technical Field
The invention belongs to the technical field of radiator performance testing, and particularly relates to a multipoint crimping type temperature measuring copper block of a radiator, a performance testing device and a testing method.
Background
With the rapid development of industrial power systems, various MVA-level large-capacity power electronic devices are in the process of metallurgy, locomotive electric traction, large ship electric propulsion and power plant generator excitation systems. The total losses are also at least between a few tens and a few hundreds of kilowatts. Because the interior of the power switch device is usually formed by connecting a plurality of silicon wafers in parallel, the heat flow density of the power switch device is mostly more than 20W/cm when the power switch device is used2Therefore, the heat dissipation performance, the temperature equalization characteristic and the mechanical strength of the heat sink are very important for the safe operation of the heat sink, and are important problems to be solved in the application of large-capacity power electronic devices.
However, the general radiator testing method is not strict enough for a radiator with high heat flow density, firstly, the mode of adopting the power of an external power supply does not consider the heat dissipation amount radiated to the air and the outside in the middle link, and the temperature measuring point is directly buried in the radiator, so that the surface of the radiator is damaged, and the thermal resistance of the heat conducting layer on the surface of the radiator is neglected, which can cause the measured thermal resistance of the radiator to be lower than an actual value, so that the testing result is separated from the application of the actual value, and the heat dissipation performance of the radiator can not be accurately reflected.
The testing device and the testing method for the heat dissipation performance, the mechanical strength and the flow resistance of the radiator are designed, and the multipoint temperature measurement copper block is designed, so that the technical indexes of the heat dissipation performance, the flow resistance, the thermal resistance, the temperature equalizing characteristic and the like of the radiator can be efficiently and accurately tested.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multipoint crimping type temperature measuring copper block of a radiator, a performance testing device and a testing method, which can efficiently and accurately test the mechanical characteristics, thermal resistance, flow resistance and temperature equalization characteristics of the radiator, and have the advantages of convenience and rapidness in testing and high testing precision.
The technical problem to be solved by the invention is realized by the following technical scheme:
the utility model provides a radiator multiple spot crimping formula temperature measurement copper billet which characterized in that: the temperature measuring device comprises a temperature measuring copper block body, wherein a plurality of temperature measuring holes are formed in the copper block body, heat insulation cushion blocks are arranged inside the temperature measuring holes, temperature measuring chips are coaxially arranged in the heat insulation cushion blocks, miniature springs are sleeved outside the temperature measuring chips, the top ends of the miniature springs are welded with the temperature measuring chips, the bottom ends of the miniature springs are embedded into the heat insulation cushion blocks, the top ends of the temperature measuring chips extend out of the miniature springs and are in surface contact with a radiator, and the bottom ends of the temperature measuring chips extend out of an outgoing line groove formed in the back of the copper block body through wires.
And the distances from the plurality of temperature measuring holes to the center of the copper block body are different.
And the heat insulation cushion block comprises a first section and a second section, the diameter of the first section is the same as that of the temperature measuring hole, and the diameter of the second section is slightly smaller than that of the first section.
The utility model provides a radiator capability test device including temperature measurement copper billet which characterized in that: including first apron, first heat insulating board, first heat source, temperature measurement copper billet, radiator, temperature measurement copper billet, second heat source, second heat insulating board, pressure steel sheet, pressure gauge, spring and the second apron that sets gradually from bottom to top, the screw thread is worn to adorn and is provided with the bracing piece between first apron and the second apron, be provided with apron fixation nut on the bracing piece, spring end with second apron fixed connection, the temperature measurement copper billet all is connected to the temperature inspection device who sets up on the bracing piece through the wire.
And a first spherical mandril and a first steel plate are arranged between the first cover plate and the first heat insulation plate, and a second spherical mandril and a second steel plate are arranged between the spring and the pressure gauge.
A method for testing the performance of a radiator is characterized by comprising the following steps: the method comprises the following steps:
s1, mounting the radiator to be tested to a radiator performance testing device, and screwing down a cover plate fixing nut arranged on a second cover plate to enable a spring to tightly press a second steel plate until the pressure of the pressure gauge reaches a rated pressure value;
s2, connecting the radiator performance testing device with a water inlet pipeline testing system, wherein the radiator is connected with a water inlet pipeline quick-insert valve and a water outlet pipeline quick-insert valve in the water channel testing system and is connected with a water storage tank, a water pump and a flowmeter in the water channel testing system in series to form a loop, and the radiator performance testing device is connected completely;
s3, starting a water pump, adjusting a water inlet control valve and a water outlet control valve in the waterway test system to enable the flow rate to reach a rated test flow rate, electrifying a first heat source and a second heat source to enable the first heat source and the second heat source to generate heat, taking away the heat transferred by the first heat source and the second heat source to a radiator by cooling water, and finally achieving heat balance;
in the test process, the water resistance characteristic of the radiator is calculated according to the measurement values of the first flowmeter, the second flowmeter and the water pressure meter;
calculating the heat resistance of the radiator and the temperature equalizing characteristics of a plurality of temperature measuring holes on a temperature measuring copper block by using the measurement values of the first flowmeter, the second flowmeter, the water inlet pipe thermometer, the water outlet pipe thermometer and the PT100 temperature polling instrument;
and S4, after the test is finished, removing the radiator performance testing device, removing the radiator, observing the deformation and surface indentation of the radiator, and inspecting the mechanical characteristics of the radiator.
The invention has the advantages and beneficial effects that:
1. the performance testing device for the radiator can comprehensively test multiple technical indexes of mechanical strength, flow resistance, thermal resistance and temperature equalization characteristic of the radiator.
2. The radiator performance testing device has the advantages of convenient operation and high testing precision.
3. According to the radiator performance testing device, the first spherical ejector rod and the first steel plate are arranged between the first cover plate and the first heat insulation plate, the second spherical ejector rod and the second steel plate are arranged between the spring and the pressure gauge, and therefore, objects in the middle area can be guaranteed to be parallel all the time even if some eccentricity occurs in installation, and therefore the tested radiator is guaranteed to be stressed uniformly.
4. According to the radiator performance testing device, the distances from the plurality of temperature measuring holes to the center of the copper block body are different, so that the temperature equalization characteristic of the tested radiator can be conveniently inspected.
5. According to the radiator performance testing device, the heat insulation cushion block is arranged in the temperature measuring hole, the temperature measuring chip is coaxially arranged in the heat insulation cushion block, the miniature spring is sleeved outside the temperature measuring chip, the top end of the miniature spring is welded with the temperature measuring chip, the bottom end of the miniature spring is embedded into the heat insulation cushion block, the top end of the temperature measuring chip extends out of the miniature spring and is in contact with the radiator, the bottom end of the temperature measuring chip extends out of the lead-out wire groove arranged at the back of the first temperature measuring copper block/the second temperature measuring copper block through the lead and is connected to the temperature inspection device, temperature testing can be carried out on the radiator without damaging the surface of the radiator, heat conduction of the peripheral environment can be reduced through the multipoint temperature measuring copper blocks and the heat insulation cushion block, the surface temperature of the radiator can be measured more accurately, and the temperature equalizing characteristic of the radiator can be verified.
6. According to the radiator performance testing device, the heat insulation cushion block comprises the first section and the second section, the diameter of the first section is the same as that of the temperature measuring hole, the diameter of the second section is slightly smaller than that of the first section, so that the heat insulation cushion block is convenient to install and position, the equivalent size of an air gap reserved between the heat insulation cushion block and the surrounding temperature measuring copper blocks is very small, air convection cannot be caused, the heat conduction of the surrounding copper blocks can be further reduced by utilizing the high heat resistance characteristic of static air, a good heat insulation effect is achieved, and the accurate temperature measurement is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a waterway test system according to the present invention;
FIG. 2 is a schematic structural diagram of a heat sink performance testing apparatus according to the present invention;
FIG. 3 is a front view of the temperature measuring copper block of the present invention;
FIG. 4 is a rear view of the temperature measuring copper block of the present invention;
FIG. 5 is a partial enlarged view of a temperature measuring hole of the temperature measuring copper block according to the present invention.
Description of the reference numerals
1-a water storage tank, 2-a water inlet pipe, 3-a water inlet control valve, 4-a first flowmeter, 5-a water inlet pipe thermometer, 6-a second flowmeter, 7-a water inlet pipe fast-plug valve, 8-a water pressure gauge, 9-a radiator performance testing device, 10-a water outlet pipe fast-plug valve, 11-a water outlet pipe thermometer, 12-a water pump, 13-a water outlet control valve, 14-a water outlet pipe, 15-a cover plate fixing nut, 16-a second cover plate, 17-a pressure steel plate, 18-a second steel plate, 19-a spring, 20-a pressure gauge, 21-a second spherical ejector rod, 22-a second heat insulation plate, 23-a second heat source, 24-PT100 polling instrument, 25-a support rod, 26-a first heat source, 27-a first temperature measuring copper block, 28-a first spherical ejector rod, 29-a first heat insulation plate, 30-a first steel plate, 31-a first cover plate, 32-a radiator, 33-a second temperature measurement copper block, 34-a temperature measurement hole, 35-an outgoing line groove, 36-a temperature measurement chip, 37-a micro spring, 38-a heat insulation cushion block and 39-a temperature measurement copper block body.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
A multipoint crimping temperature measurement copper block of a radiator is innovative in that: including temperature measurement copper billet body 39, be provided with a plurality of temperature measurement holes 34 on the copper billet body, the inside thermal-insulated cushion 38 that is provided with of temperature measurement hole, the coaxial temperature measurement chip 36 that is provided with in the thermal-insulated cushion, the outside suit miniature spring 37 of temperature measurement chip, miniature spring top with the welding of temperature measurement chip, the bottom embedding thermal-insulated cushion, the temperature measurement chip top is stretched out miniature spring and with radiator 32 surface contact, the bottom is stretched out through the wire draw-out wire way 35 that copper billet body back set up.
The distances from the plurality of temperature measuring holes to the center of the copper block body are different, so that the temperature equalizing characteristic of the measured radiator can be conveniently inspected.
The thermal-insulated cushion includes first section and second section, the diameter of first section with the temperature measurement hole is the same, the diameter of second section slightly is less than first section, not only can be convenient for install and fix a position, simultaneously and all around the temperature measurement copper billet leave the air gap size equivalent between very little, can not arouse the air convection, utilize the high thermal resistance characteristic of static air, can further reduce copper billet body heat conduction all around, play good thermal-insulated effect, guarantee that the temperature measurement is accurate.
The multipoint crimping type temperature measuring copper block of the radiator can test the temperature of the radiator without damaging the surface of the radiator, and the multipoint temperature measuring copper block and the heat insulation cushion block can reduce the heat conduction of the peripheral environment, so that the surface temperature of the radiator can be measured more accurately, and the temperature equalization characteristic of the radiator can be verified.
A radiator performance testing device is characterized in that: including first apron 31, first heat insulating board 29, first heat source 26, first temperature measurement copper billet 27, radiator, second temperature measurement copper billet 33, second heat source 23, second heat insulating board 22, pressure steel sheet 17, pressure gauge 20, spring 19 and the second apron 16 that set gradually from bottom to top, the screw thread is worn to adorn and is provided with bracing piece 25 between first apron and the second apron, be provided with apron fixation nut 15 on the bracing piece, the spring tip with second apron fixed connection, the temperature measurement copper billet all is connected to the PT100 that sets up on the bracing piece through the wire and patrols and examines appearance 24.
A first spherical mandril 28 and a first steel plate 30 are arranged between the first cover plate and the first heat insulation plate, and a second spherical mandril 21 and a second steel plate 18 are arranged between the spring and the pressure gauge, so that objects in the middle area can be always parallel even if some eccentricities occur in the installation, and the uniform stress of the tested radiator is ensured.
When performance test is carried out, the test device needs to be connected to a waterway test system, the waterway test system comprises a water storage tank 1, a radiator performance test device, a water inlet pipe 2 and a water outlet pipe 14, the water storage tank is communicated with the radiator performance test device through the water inlet pipe and the water outlet pipe, a water inlet control valve 3, a water pump 12, a water inlet pipe thermometer 5 and a water inlet pipe quick-plugging valve 7 are sequentially arranged on the water inlet pipe, a water outlet pipe quick-plugging valve 10, a water outlet pipe thermometer 11, a first flowmeter 4, a second flowmeter 5 and a water outlet control valve 13 which are connected in parallel are sequentially arranged on the water outlet pipe, the water inlet pipe quick-plugging valve and the water outlet pipe quick-plugging valve are both connected to the radiator performance test device 9, and a water pressure gauge 8 is arranged between the water inlet pipe and the water outlet pipe;
the number of the water inlet pipe quick-insertion valves and the water outlet pipe quick-insertion valves is determined according to the specification of the radiator, so that the connection of radiators with different specifications is facilitated, and the application range is wide.
The number of the flow meters is determined according to the specification and the test range of the radiator, and the reading precision of the water flow is improved.
A performance test method of a radiator performance test device comprises the following test steps:
s1, mounting the radiator to be tested to a radiator performance testing device, and screwing down a cover plate fixing nut arranged on a second cover plate to enable a spring to tightly press a second steel plate until the pressure of the pressure gauge reaches a rated pressure value;
s2, connecting the radiator performance testing device with a water inlet pipeline testing system, wherein the radiator is connected with a water inlet pipeline quick-insert valve and a water outlet pipeline quick-insert valve in the water channel testing system and is connected with a water storage tank, a water pump and a flowmeter in the water channel testing system in series to form a loop, and the radiator performance testing device is connected completely;
s3, starting a water pump, adjusting a water inlet control valve and a water outlet control valve in the waterway test system to enable the flow rate to reach a rated test flow rate, electrifying a first heat source and a second heat source to enable the first heat source and the second heat source to generate heat, taking away the heat transferred by the first heat source and the second heat source to a radiator by cooling water, and finally achieving heat balance;
in the test process, the water resistance characteristic of the radiator is calculated according to the measurement values of the first flowmeter, the second flowmeter and the water pressure meter;
calculating the heat resistance of the radiator and the temperature equalizing characteristics of a plurality of temperature measuring holes on a temperature measuring copper block by using the measurement values of the first flowmeter, the second flowmeter, the water inlet pipe thermometer, the water outlet pipe thermometer and the PT100 polling instrument;
and S4, after the test is finished, removing the radiator performance testing device, removing the radiator, observing the deformation and surface indentation of the radiator, and inspecting the mechanical characteristics of the radiator.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (6)
1. The utility model provides a radiator multiple spot crimping formula temperature measurement copper billet which characterized in that: the temperature measuring device comprises a temperature measuring copper block body, wherein a plurality of temperature measuring holes are formed in the copper block body, heat insulation cushion blocks are arranged inside the temperature measuring holes, temperature measuring chips are coaxially arranged in the heat insulation cushion blocks, miniature springs are sleeved outside the temperature measuring chips, the top ends of the miniature springs are welded with the temperature measuring chips, the bottom ends of the miniature springs are embedded into the heat insulation cushion blocks, the top ends of the temperature measuring chips extend out of the miniature springs and are in surface contact with a radiator, and the bottom ends of the temperature measuring chips extend out of an outgoing line groove formed in the back of the copper block body through wires.
2. The heat sink multipoint crimping temperature measuring copper block of claim 1, wherein: the distances from the plurality of temperature measuring holes to the center of the copper block body are different.
3. The heat sink multipoint crimping temperature measuring copper block of claim 1, wherein: the heat insulation cushion block comprises a first section and a second section, the diameter of the first section is the same as that of the temperature measuring hole, and the diameter of the second section is slightly smaller than that of the first section.
4. A heat radiator performance testing device comprising the temperature-measuring copper block of claim 1, characterized in that: including first apron, first heat insulating board, first heat source, temperature measurement copper billet, radiator, temperature measurement copper billet, second heat source, second heat insulating board, pressure steel sheet, pressure gauge, spring and the second apron that sets gradually from bottom to top, the screw thread is worn to adorn and is provided with the bracing piece between first apron and the second apron, be provided with apron fixation nut on the bracing piece, spring end with second apron fixed connection, the temperature measurement copper billet all is connected to the temperature inspection device who sets up on the bracing piece through the wire.
5. The heat sink performance testing apparatus of claim 1, wherein: a first spherical ejector rod and a first steel plate are arranged between the first cover plate and the first heat insulation plate, and a second spherical ejector rod and a second steel plate are arranged between the spring and the pressure gauge.
6. A performance testing method of the heat sink performance testing apparatus according to claim 4, characterized in that: the method comprises the following steps:
s1, mounting the radiator to be tested to a radiator performance testing device, and screwing down a cover plate fixing nut arranged on a second cover plate to enable a spring to tightly press a second steel plate until the pressure of the pressure gauge reaches a rated pressure value;
s2, connecting the radiator performance testing device with a water inlet pipeline testing system, wherein the radiator is connected with a water inlet pipeline quick-insert valve and a water outlet pipeline quick-insert valve in the water channel testing system and is connected with a water storage tank, a water pump and a flowmeter in the water channel testing system in series to form a loop, and the radiator performance testing device is connected completely;
s3, starting a water pump, adjusting a water inlet control valve and a water outlet control valve in the waterway test system to enable the flow rate to reach a rated test flow rate, electrifying a first heat source and a second heat source to enable the first heat source and the second heat source to generate heat, taking away the heat transferred by the first heat source and the second heat source to a radiator by cooling water, and finally achieving heat balance;
in the test process, the water resistance characteristic of the radiator is calculated according to the measurement values of the first flowmeter, the second flowmeter and the water pressure meter;
calculating the heat resistance of the radiator and the temperature equalizing characteristics of a plurality of temperature measuring holes on a temperature measuring copper block by using the measurement values of the first flowmeter, the second flowmeter, the water inlet pipe thermometer, the water outlet pipe thermometer and the PT100 temperature polling instrument;
and S4, after the test is finished, removing the radiator performance testing device, removing the radiator, observing the deformation and surface indentation of the radiator, and inspecting the mechanical characteristics of the radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110520104.5A CN113432898A (en) | 2021-05-13 | 2021-05-13 | Multipoint crimping type temperature measurement copper block of radiator, performance testing device and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110520104.5A CN113432898A (en) | 2021-05-13 | 2021-05-13 | Multipoint crimping type temperature measurement copper block of radiator, performance testing device and testing method |
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| CN113432898A true CN113432898A (en) | 2021-09-24 |
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Application publication date: 20210924 |