CN115877103A - Device for testing thermoelectric device - Google Patents
Device for testing thermoelectric device Download PDFInfo
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- CN115877103A CN115877103A CN202211557148.6A CN202211557148A CN115877103A CN 115877103 A CN115877103 A CN 115877103A CN 202211557148 A CN202211557148 A CN 202211557148A CN 115877103 A CN115877103 A CN 115877103A
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- 239000012528 membrane Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 229920001721 polyimide Polymers 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 4
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Abstract
The application relates to the technical field of thermoelectric device power generation performance testing, and provides a device for testing a thermoelectric device, which comprises a frame, a heat source, a cold source and a cold end adjusting film. The heat source is arranged on the frame and is provided with a hot end contact surface; the cold source is arranged on the frame and is provided with a refrigerating surface facing the hot end contact surface; the cold end adjusting film is arranged on the refrigerating surface, the thermoelectric device is arranged between the hot end contact surface and the cold end adjusting film, and the cold end adjusting film is used for increasing the thermal resistance of the cold source. The application provides a device for testing thermoelectric device can simulate out thermoelectric device's cold junction temperature.
Description
Technical Field
The application relates to the technical field of thermoelectric device power generation performance testing, in particular to a device for testing a thermoelectric device.
Background
The thermoelectric generator such as a radioisotope generator has a wide application environment in the fields of deep space, underwater, polar exploration and the like, and the decay heat of the radioisotope is converted into electric energy by adopting a thermoelectric device, so that the thermoelectric device is used as a key element of the thermoelectric generator and needs to be tested to check the output and the service life of the thermoelectric generator in the internal environment of the thermoelectric generator. The cold source in the related art is difficult to simulate the cold end temperature of the thermoelectric device, such as above 200 ℃.
Disclosure of Invention
In view of the above, embodiments of the present application are directed to providing an apparatus for testing a thermoelectric device, which can simulate a temperature of a cold end of the thermoelectric device.
In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:
the embodiment of the application discloses a device for testing a thermoelectric device, including:
a frame;
the heat source is arranged on the frame and is provided with a hot end contact surface;
the cold source is arranged on the rack and is provided with a refrigerating surface facing the hot end contact surface;
and the cold end adjusting film is arranged on the refrigerating surface, the thermoelectric device is arranged between the hot end contact surface and the cold end adjusting film, and the cold end adjusting film is used for increasing the thermal resistance of the cold source.
In one embodiment, the cold end conditioning membrane is a polyimide membrane and/or a polytetrafluoroethylene conditioning membrane.
In one embodiment, the cold end adjusting films are multiple in number, and the cold end adjusting films are sequentially stacked.
In an embodiment, at least some of the cold end conditioning films are of unequal thickness.
In one embodiment, the device includes a hot side conditioning film disposed on the hot side contact surface for reducing a thermal resistance of the heat source.
In one embodiment, the number of the hot end adjusting films is multiple, and the hot end adjusting films are stacked in sequence.
In one embodiment, at least some of the hot end conditioning films are unequal in thickness.
In one embodiment, the device includes a pressurizing assembly, a placing groove for placing the thermoelectric device is formed on the hot end contact surface, the pressurizing assembly is movably arranged on the frame and connected with the cold source, and the pressurizing assembly can drive the cold source to be close to the thermoelectric device.
In one embodiment, the pressurizing assembly is located above the cold source, and the heat source is located below the cold source.
In one embodiment, the pressurizing assembly comprises:
pushing the plate;
the thrust bearing is arranged on the push plate;
the elastic piece is positioned between the push plate and the cold source;
the lead screw, the one end of lead screw with thrust bearing connects, the frame is formed with the screw hole, the lead screw with screw hole screw-thread fit rotates the lead screw is in order to drive the push pedal is close to or keeps away from the elastic component, the elastic component can drive the cold source is close to the thermoelectric device.
In one embodiment, the heat source comprises:
a housing formed with an opening and a heat insulating chamber, the opening communicating with the heat insulating chamber;
the soaking box is arranged in the heat insulation cavity, a hot end contact surface is formed on the side surface, facing the opening, of the soaking box, and part of the thermoelectric device extends out of the opening;
the heating rod penetrates through the shell and extends into the interior of the soaking box.
In one embodiment, the heat source comprises an insulating block filled in the insulating cavity to wrap the soaking box.
In one embodiment, the heat source comprises a support member, and the support member is supported on one side of the soaking box far away from the hot end contact surface.
The embodiment of the application discloses a device for testing a thermoelectric device, the cold source adjusting film is arranged on the refrigerating surface of the cold source, so that the thermal resistance of the cold source can be increased, and the cold source cannot be quickly transmitted to the cold end of the thermoelectric device due to the existence of the cold end adjusting film; on the other hand, the temperature of the cold source can be fixed at one temperature, so that the operation of heating and cooling the cold source is reduced, time and labor are saved, and the cost is low; on the other hand, the heat source and the cold source are arranged to obtain the output performance of the thermoelectric device under different temperature differences, and data support is provided for checking the output and service life of the thermoelectric device in the actual service environment in the thermoelectric generator.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for testing a thermoelectric device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of the housing of FIG. 1;
FIG. 3 is a schematic view of the pressing assembly shown in FIG. 1;
FIG. 4 is a schematic structural diagram of the cold source in FIG. 1, wherein the elastic member is located in the mounting groove and the cold end adjusting film is disposed on the cooling surface;
fig. 5 is a schematic structural view of the heat source in fig. 1, in which a hot end regulating film is disposed on a hot end contact surface.
Description of the reference numerals
An apparatus 100; a frame 1; a mounting cavity 1a; an upper plate 11; a nut 11a; a lower plate 12; a chute 12a; a connecting column 13; an elastic ring 14; a heat source 2; a hot side contact face 2a; a housing 21; an opening 21a; a heat insulating chamber 21b; a placement groove 21c; a soaking box 22; a heating rod 23; a heat insulating block 24; a support 25; a cold source 3; a refrigerating surface 3a; a base body 31; a liquid inlet 31a; a liquid outlet 31b; an upper cover 32; mounting grooves 32a; the guide posts 321; a cold end regulation membrane 4; a hot end regulating film 5; a housing 6; a closed cavity 6a; a slide rail 6a1; a pressurizing assembly 7; a push plate 71; a thrust bearing 72; an elastic member 73; a lead screw 74; a linear bearing 75; a guide bearing 76; a thermoelectric device 200.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
The present application will be described in further detail with reference to the following drawings and specific embodiments. In the description of the embodiments of the present application, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
Referring to fig. 1 to 5, an apparatus 100 includes a frame 1, a heat source 2, a heat sink 3, and a cold-end conditioning film 4.
A heat source 2 is arranged on the frame 1, the heat source 2 having a hot side contact surface 2a. The heat source 2 is for providing heat.
The cold source 3 is arranged on the frame 1, and the cold source 3 is provided with a refrigerating surface 3a facing the hot end contact surface 2a. The temperature of the cold source 3 is lower than that of the heat source 2, and there is a temperature difference between the heat source 2 and the cold source 3.
The cold end adjusting film 4 is arranged on the refrigerating surface 3a, the thermoelectric device 200 is arranged between the hot end contact surface 2a and the cold end adjusting film 4, and the cold end adjusting film 4 is used for increasing the thermal resistance of the cold source 3.
The two ends of the thermoelectric device 200 along the heat conduction direction are respectively a cold end and a hot end, the cold end is in contact connection with the cold end adjusting film 4, and the hot end is in contact connection with the hot end contact surface 2a.
In the embodiment, the cold source 3 adjusting film is arranged on the refrigerating surface 3a of the cold source 3, so that the thermal resistance of the cold source 3 can be increased, and the cold source 3 cannot be quickly transmitted to the cold end of the thermoelectric device 200 due to the existence of the cold end adjusting film 4, so that on one hand, the heat transfer efficiency between the cold end of the thermoelectric device 200 and the cold source 3 can be reduced, so that the temperature gradient is improved, then, the cold end temperature of the thermoelectric device 200 can be accurately controlled, different working temperatures of the cold end of the thermoelectric device 200 can be contained, and the reliability is high; on the other hand, the temperature of the cold source 3 can be fixed at one temperature, so that the operation of heating and cooling the cold source 3 is reduced, time and labor are saved, and the cost is low; on the other hand, the heat source 2 and the cold source 3 can obtain the output performance of the thermoelectric device 200 under different temperature differences, and data support is provided for checking the output and service life of the thermoelectric device 200 in the actual service environment in the thermoelectric generator.
In one embodiment, the cold end conditioning membrane 4 is a polyimide membrane and/or a teflon conditioning membrane. Illustratively, the cold-end conditioning membrane 4 may be a polyimide membrane; the cold end adjusting membrane 4 can also be a polytetrafluoroethylene adjusting membrane; of course, the cold end adjusting film 4 may be a polyimide film or a polytetrafluoroethylene adjusting film, and specifically, the materials with different thermal conductivities are selected according to the cold end temperature of the analog thermoelectric device 200.
In one embodiment, the number of the cold end adjusting films 4 is plural, and the plural cold end adjusting films 4 are stacked in sequence. In this way, by stacking an appropriate number of cold-end adjustment films 4 on the cooling surface 3a, the cold-end temperature of the thermoelectric device 200 can be accurately controlled to cover different cold-end operating temperatures to expand the database of the test of the thermoelectric device 200.
In an embodiment, at least some of the plurality of cold end conditioning membranes 4 are not equal in thickness. Thus, by providing the cold-end regulation film 4 of different thickness on the cooling surface 3a, the thermal resistance of the heating source 2 can be increased, so that the cold-end temperature of the thermoelectric device 200 can reach the target temperature.
Exemplarily, to the cold junction temperature of simulation steam device is at 200 ℃ as an example, and 2 temperatures of heat source are 800 ℃, and 3 temperatures of cold source are 45 ℃, and the hot junction of thermoelectric device 200 absorbs the heat and transmits to the cold junction, adjusts membrane 4 through the cold junction that sets up different quantity and thickness and can reduce the heat to the transmission of cold source 3, like this, alright with the cold junction temperature that makes thermoelectric device 200 keeps at 200 ℃.
In one embodiment, the device 100 includes a hot side conditioning membrane 5, the hot side conditioning membrane 5 being disposed on the hot side contact surface 2a, the hot side conditioning membrane 5 being configured to reduce the thermal resistance of the heat source 2. Thus, by arranging the hot end regulating film 5 on the hot end contact surface 2a, the heat conduction of the hot end of the heat source 2 and the thermoelectric device 200 can be enhanced, so that the hot end temperature of the thermoelectric device 200 is closer to the temperature of the heat source 2, the loss of heat is reduced, and the accuracy of the test is ensured.
In one embodiment, the hot end adjusting film 5 is made of graphite. In this way, by providing the hot end adjustment film 5 of a suitable material, the material of the hot end of the thermoelectric device 200 is made uniform to match the thermal conductivity, and the heat loss is reduced.
In one embodiment, the number of the hot end adjustment films 5 is plural, and the plural hot end adjustment films 5 are stacked in sequence. Thus, by providing the appropriate hot side conditioning film 5 on the hot side contact surface 2a, the hot side temperature of the thermoelectric device 200 can be precisely controlled to cover different hot side operating temperatures to expand the database for testing the thermoelectric device 200.
In one embodiment, at least some of the hot end conditioning films 5 are not equal in thickness. Thus, by providing the hot-side conditioning film 5 of an appropriate thickness on the hot-side contact surface 2a, the thermal resistance of the heat source 2 can be reduced, and thus the hot-side temperature of the thermoelectric device 200 can be brought to the target temperature.
In one embodiment, referring to fig. 1, the apparatus 100 includes a housing 6 and a vacuum pump, the housing 6 forms a sealed cavity 6a, the rack 1 is disposed in the sealed cavity 6a, the vacuum pump is communicated with the sealed cavity 6a, and the vacuum pump is used for adjusting the vacuum degree in the sealed cavity 6 a. Illustratively, the housing 6 may be a cylindrical structure of stainless steel. Therefore, different vacuum degrees and atmosphere atmospheres can be adjusted through the vacuum pump according to the real service environment of the thermoelectric device 200, so that the output performance of the thermoelectric device 200 under different vacuum degrees and different atmosphere atmospheres can be tested, and data support is provided for checking the output and service life of the thermoelectric device 200 in the actual service environment in the thermoelectric generator.
In an exemplary embodiment, the housing 6 is provided with an electrical through flange, an air path through flange and a cooling through flange, so that not only the electrical communication operation of the cold source 3, the heat source 2 and other components can be ensured, but also the sealing performance of the housing 6 can be maintained.
In an exemplary embodiment, referring to fig. 1 and 2, the rack 1 includes an upper plate 11, a lower plate 12 and connecting columns 13, the number of the connecting columns 13 is not limited, for example, 4 connecting columns may be provided, the upper plate 11 and the lower plate 12 may be made of a high-strength aluminum alloy, the connecting columns 13 are connected between the upper plate 11 and the lower plate 12 to jointly enclose the installation cavity 1a, and the heat source 2 and the cold source 3 are located in the installation cavity 1a, so that a stable supporting environment may be provided for testing the thermoelectric device 200.
In an exemplary embodiment, referring to fig. 1, an elastic ring 14 is sleeved on the connecting column 13, so that the pressure assembly can be adjusted more conveniently.
In one embodiment, referring to fig. 1, 3 and 5, the apparatus 100 includes a pressing member 7, the hot side contact surface 2a is formed with a slot 21c for placing the thermoelectric device 200, and the pressing member 7 is movably disposed on the frame 1 and connected to the heat sink 3. Illustratively, in one embodiment, one of the rack 1 and the sealed cavity 6a is formed with a slide rail 6a1, the other of the rack 1 and the sealed cavity 6a is formed with a slide groove 12a, the slide groove 12a is slidably engaged with the slide rail 6a1, for example, the lower plate 12 is formed with a slide groove 12a, the slide rail 6a1 is formed on the inner wall of the sealed cavity 6a, and the slide groove 12a is slidably engaged with the slide rail 6a1, so that the rack 1 can be conveniently pulled out to install and remove the thermoelectric device 200, and parts such as the heat source 2 and the cold source 3 can be conveniently repaired. In some embodiments, the lower plate 12 is formed with a sliding rail 6a1, and the inner wall of the closed cavity 6a is formed with a sliding groove 12a, and the sliding groove 12a is slidably engaged with the sliding rail 6a 1.
The pressurizing assembly 7 can bring the cold source 3 close to the thermoelectric device 200. Therefore, the cold source 3 is driven to be close to the thermoelectric device 200 through the pressurizing assembly 7 so as to apply pressure to the thermoelectric device 200, so that the output performance of the thermoelectric device 200 under different pressures can be simulated, and data support is provided for checking the output and service life of the thermoelectric device 200 in the actual service environment in the thermoelectric generator.
In one embodiment, referring to fig. 1, the pressure applying component 7 is located above the cold source 3, and the heat source 2 is located below the cold source 3. Here, the cold end of the thermoelectric device 200 may be compressed by the gravity of the cold source 3, and then the cold end is pressurized, so that the pressurizing assembly 7 pressurizes the thermoelectric device 200 downward, thereby reducing the structural strength of the pressurizing assembly 7; on the other hand, the downward pressing can improve the accurate control of the pressure and facilitate the operation of a user.
In one embodiment, referring to fig. 1 and 3, the pressing assembly 7 includes a pushing plate 71, a thrust bearing 72, an elastic member 73, and a screw 74. The thrust bearing 72 is provided on the push plate 71. Illustratively, the location of the thrust bearing 72 is not limited, and the thrust bearing 72 may be disposed in a central region of the push plate 71, for example. The elastic member 73 is positioned between the push plate 71 and the cool source 3. Illustratively, the elastic member 73 may be a spring. One end of the screw rod 74 is connected with the thrust bearing 72, a threaded hole is formed in the frame 1, the screw rod 74 is in threaded fit with the threaded hole, the screw rod 74 is rotated to drive the push plate 71 to be close to or far away from the elastic piece 73, and the elastic piece 73 can drive the cold source 3 to be close to the thermoelectric device 200. Illustratively, the nut 11a is mounted on the upper plate 11, such as a T-shaped nut 11a, a threaded hole is formed in the nut 11a, the type of the screw rod 74 is not limited, for example, the screw rod 74 may be a T-shaped screw rod 74, one end of the screw rod 74 is inserted into the threaded hole, and the other end of the screw rod 74 is rotatably connected to the push plate 71 through the thrust bearing 72, so that one end of the screw rod 74 is rotated to push the push plate 71 to press the cold end of the thermoelectric device 200 through the elastic element 73 and the cold source 3, and thus, on one hand, the magnitude of the applied pressure can be accurately controlled and the adjustment is accurate by adopting a thread fit manner; on the other hand, the actual service environment of the thermoelectric device 200 in the thermoelectric generator can be simulated through the elastic part 73, the test is accurate, and the data is reliable; on the other hand, the cold source 3 and the pressurizing assembly 7 are separately designed, so that the elastic member 73 can be conveniently replaced, and the maintenance is more convenient.
In an exemplary embodiment, referring to fig. 4, a plurality of mounting grooves 32a are formed on a side of the cold source 3 facing the push plate 71, the number of the elastic members 73 is not limited, one elastic member 73 can be selected from one mounting groove 32a for mounting, a part of the elastic member 73 is located in the mounting groove 32a, and the rest of the elastic member 73 is located outside the mounting groove 32a, so that the elastic members 73 with corresponding specifications and numbers can be mounted according to the actual service pressure of the thermoelectric device 200, so as to simulate the pressure environment of the thermoelectric device 200 in the isotope temperature difference power generation to the maximum extent, and the test data is accurate and the reliability is high.
For example, in one embodiment, the material of the push plate 71 can be a high-strength aluminum alloy.
For example, in an embodiment, referring to fig. 1 to 3, the pressing assembly 7 includes linear bearings 75, the linear bearings 75 are disposed on the outer edge of the push plate 71, for example, the number of the linear bearings 75 is not limited, such as 4, and 4 linear bearings 75 can be disposed at 4 corners of the push plate 71. The connecting column 13 is inserted into the linear bearing 75. Thus, when the rotating screw rod 74 pushes the push plate 71, the push plate 71 can move along the guiding direction between the linear bearing 75 and the connecting column 13, the precision is high, and the transmission is smooth.
In an exemplary embodiment, referring to fig. 1 and 4, the cold source 3 includes a base 31, an upper cover 32 and a liquid cooling medium, a liquid inlet 31a, a liquid outlet 31b and a liquid cooling tank opening 21a to the upper cover 32 are formed in the base 31, both the liquid inlet 31a and the liquid outlet 31b are communicated with the liquid cooling tank, the upper cover 32 covers the liquid cooling tank to form a liquid cooling channel, the liquid cooling medium enters the liquid cooling channel from the liquid inlet 31a and flows out from the liquid outlet 31b after releasing energy to maintain temperature, a side of the base 31 away from the upper cover 32 is a cooling surface 3a, and the upper cover 32 is formed with an installation groove 32a for installing the elastic element 73. Like this, with cold source 3 design split type, can reduce cold source 3's the design degree of difficulty, cost of maintenance is lower.
In one embodiment, the liquid cooling channel is in a continuous winding structure. For example, the liquid cooling channel may be in a "return" structure or a spiral structure, so as to increase the liquid cooling path and improve the heat exchange efficiency.
For example, in an embodiment, referring to fig. 1, fig. 3 and fig. 4, the upper lid 32 is formed with guiding pillars 321, the number of the guiding pillars 321 is not limited, for example, the number of the guiding pillars 321 may be 4,4 guiding pillars 321 may be disposed at 4 corners of the upper lid 32. The pressurizing assembly 7 includes a guide bearing 76, the guide bearing 76 is disposed between the thrust bearing 72 and the linear bearing 75 of the push plate 71, the number of the guide bearings 76 is not limited, for example, the number of the guide bearings 76 is 4, which corresponds to the number of the guide posts 321, and the guide posts 321 penetrate through the guide bearing 76. Therefore, when the push plate 71 approaches the cold source 3, pressure can be applied to the upper cover 32 along the guiding direction of the guide post 321 and the guide bearing 76, the movement is smooth, and the application of force is uniform.
In one embodiment, referring to fig. 1 and 5, the heat source 2 includes a housing 21, a soaking box 22, and a heating rod 23. The housing 21 has an opening 21a and a heat insulating chamber 21b, and the opening 21a communicates with the heat insulating chamber 21 b. For example, the housing 21 may be manufactured in any manner, such as integral molding; or be formed by splicing split type heat insulation materials, so that the design difficulty of the shell 21 can be reduced. The material of the housing 21 may be a heat insulating material to prevent heat in the housing 21 from radiating to the cold end of the thermoelectric device 200, and improve the stability of the temperature of the cold end of the thermoelectric device 200, so that the heat flow paths of the hot end and the cold end of the thermoelectric device 200 are consistent with the actual service environment.
The soaking box 22 is disposed in the heat insulating chamber 21b, a hot end contact surface 2a is formed on a side surface of the soaking box 22 facing the opening 21a, and a part of the thermoelectric device 200 protrudes from the opening 21a. For example, the soaking box 22 may be made of a metal such as tungsten having excellent high-temperature strength and high thermal conductivity, so that the soaking effect may be improved, and when the hot end insertion opening 21a of the thermoelectric device 200 is in contact with the hot end contact surface 2a, the hot end of the thermoelectric device 200 may be brought closer to the target temperature, thereby improving the accuracy of the test data. The heating rod 23 extends through the housing 21 into the interior of the soaking box 22. Therefore, the design of the plug-in heating rod 23 is adopted, so that the replacement can be convenient, the design is simple, and the cost is lower.
For example, in an embodiment, the heating rod 23 may be heated electrically.
In one embodiment, referring to fig. 5, the heat source 2 includes a heat insulation block 24, and the heat insulation block 24 is filled in the heat insulation cavity 21b to wrap the soaking box 22. Illustratively, the insulation blocks 24 may be made of a foam-like material. Thus, by filling the heat insulating cavity 21b with the heat insulating block 24, the heat dissipation of the soaking box 22 can be reduced to ensure that the hot end temperature of the thermoelectric device 200 reaches the target temperature.
In one embodiment, referring to fig. 5, the heat source 2 includes a support 25, and the support 25 is supported on the side of the soaking box 22 away from the hot side contact surface 2a. Illustratively, the shape of the support 25 is not limited, and may be, for example, a tube. In this way, when the pressurizing assembly 7 applies pressure to the thermoelectric device 200, the thermoelectric device 200 can be prevented from shaking due to the sinking of the soaking box 22 by the support of the support 25, so as to improve the stability of the test of the thermoelectric device 200.
In an exemplary embodiment, the material of the supporting member 25 may be zirconia or other materials with high strength, high temperature resistance and low thermal conductivity, so that the heat transfer from the soaking box 22 to the supporting member 25 is reduced, the heat loss is reduced, and the supporting strength of the soaking box 22 is improved.
The above description is only a preferred embodiment of the present application, and is not intended to limit the present application, and it is obvious to those skilled in the art that various modifications and variations can be made in the present application. All changes, equivalents, modifications, etc. that come within the spirit and scope of the disclosure are intended to be embraced therein.
Claims (13)
1. An apparatus for testing a thermoelectric device, comprising:
a frame;
the heat source is arranged on the frame and is provided with a hot end contact surface;
the cold source is arranged on the rack and is provided with a refrigerating surface facing the hot end contact surface;
and the cold end adjusting film is arranged on the refrigerating surface, the thermoelectric device is arranged between the hot end contact surface and the cold end adjusting film, and the cold end adjusting film is used for increasing the thermal resistance of the cold source.
2. The device of claim 1 wherein the cold end conditioning membrane is a polyimide membrane and/or a polytetrafluoroethylene conditioning membrane.
3. The device according to claim 1, characterized in that said cold end conditioning membranes are in a plurality, a plurality of which are superposed one upon the other.
4. The apparatus of claim 3 wherein at least some of said plurality of cold end conditioning membranes are of unequal thickness.
5. The device of claim 1, comprising a hot side conditioning membrane disposed on the hot side contact surface for reducing a thermal resistance of the heat source.
6. The device according to claim 5, wherein the number of the hot end regulating films is plural, and plural ones of the hot end regulating films are stacked in sequence.
7. The device of claim 6, wherein at least some of the thicknesses of a plurality of the hot end conditioning films are not equal.
8. The device of claim 1, wherein the device comprises a pressurizing assembly, a placing groove for placing the thermoelectric device is formed on the hot end contact surface, the pressurizing assembly is movably disposed on the frame and connected to the cold source, and the pressurizing assembly is capable of driving the cold source to approach the thermoelectric device.
9. The device of claim 8, wherein the pressurizing assembly is positioned above the cold source and the hot source is positioned below the cold source.
10. The apparatus of claim 8, wherein the pressurizing assembly comprises:
pushing the plate;
the thrust bearing is arranged on the push plate;
the elastic piece is positioned between the push plate and the cold source;
the lead screw, the one end of lead screw with thrust bearing connects, the frame is formed with the screw hole, the lead screw with screw hole screw-thread fit rotates the lead screw is in order to drive the push pedal is close to or keeps away from the elastic component, the elastic component can drive the cold source is close to the thermoelectric device.
11. The apparatus of claim 1, wherein the heat source comprises:
a housing formed with an opening and a heat insulating chamber, the opening communicating with the heat insulating chamber;
the soaking box is arranged in the heat insulation cavity, a hot end contact surface is formed on the side surface, facing the opening, of the soaking box, and part of the thermoelectric device extends out of the opening;
the heating rod penetrates through the shell and extends into the interior of the soaking box.
12. The apparatus of claim 11, wherein the heat source comprises an insulation block filled in the insulation cavity to wrap the soaking box.
13. The apparatus of claim 11, wherein the heat source comprises a support supported on a side of the soaking cartridge remote from the hot end contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211557148.6A CN115877103B (en) | 2022-12-06 | 2022-12-06 | Device for testing thermoelectric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211557148.6A CN115877103B (en) | 2022-12-06 | 2022-12-06 | Device for testing thermoelectric device |
Publications (2)
| Publication Number | Publication Date |
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| CN115877103A true CN115877103A (en) | 2023-03-31 |
| CN115877103B CN115877103B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211557148.6A Active CN115877103B (en) | 2022-12-06 | 2022-12-06 | Device for testing thermoelectric device |
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