Testing device

Abstract

The utility model discloses a testing device, which comprises a first heat-conducting plate, a second heat-conducting plate, a heating plate, a first thermodetector and a second thermodetector, the first heat-conducting plate, the second heat-conducting plate and the heating plate are sequentially arranged, the first heat-conducting plate and the second heat-conducting plate are detachably connected to form a testing cavity, and the testing cavity is used for filling heat-conducting glue. The first thermodetector is arranged in the test cavity and connected with the first heat-conducting plate, and the second thermodetector is arranged in the test cavity and connected with the second heat-conducting plate, so that the first heat-conducting plate can be connected with or separated from the second heat-conducting plate, the first heat-conducting plates with different sizes can be replaced conveniently, and the thickness of the test cavity can be adjusted conveniently; therefore, the heat-conducting performance of the heat-conducting glue with different thicknesses can be tested, the situation that only the heat-conducting glue with one thickness can be tested is avoided, meanwhile, different heat-conducting glue is replaced to test the performance, and the testing universality of the testing device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field especially relates to a test device. BACKGROUND

[0002] With the development of technology, test device is applied to industry, and a layer of heat-conducting glue needs to be coated between the liquid-cooled lower box and the battery module to improve the heat-conducting efficiency, and the test device is used for testing the heat-conducting performance of the heat-conducting glue.

[0003] In the prior art, the existing test device comprises a first heat-conducting plate, a second heat-conducting plate and a test piece, the first heat-conducting plate is fixed to the second heat-conducting plate, a test cavity is formed between the first heat-conducting plate and the second heat-conducting plate, the test cavity is used for filling the heat-conducting glue, and the test piece is used for testing the temperature of the first heat-conducting plate and the second heat-conducting plate, but the first heat-conducting plate cannot be disassembled relative to the second heat-conducting plate, the thickness of the test cavity cannot be adjusted, and only one kind of thickness of the heat-conducting glue can be tested, resulting in poor test versatility of the existing test device. SUMMARY

[0004] One purpose of the utility model is to provide a test device, which aims to solve the technical problem that the thickness of the test cavity cannot be adjusted, only one kind of thickness of the heat-conducting glue can be tested, and the test versatility of the existing test device is poor.

[0005] To achieve the above purpose, a scheme provided by the utility model is as follows: a test device is used for testing the heat-conducting performance of heat-conducting glue, and comprises a first heat-conducting plate, a second heat-conducting plate, a heating plate, a first temperature meter and a second temperature meter, the first heat-conducting plate, the second heat-conducting plate and the heating plate are sequentially arranged, the first heat-conducting plate and the second heat-conducting plate are detachably connected to form a test cavity, the test cavity is used for filling the heat-conducting glue, the first temperature meter is arranged in the test cavity and connected with the first heat-conducting plate, and the second temperature meter is arranged in the test cavity and connected with the second heat-conducting plate.

[0006] Optionally, the first heat-conducting plate comprises a first base and a first enclosing part, the first enclosing part is arranged on one side of the first base facing the second heat-conducting plate, the first enclosing part is connected with the second heat-conducting plate, and the first base, the first enclosing part and the second heat-conducting plate jointly enclose the test cavity.

[0007] Optionally, the second heat-conducting plate is provided with a second limiting groove facing the first heat-conducting plate, and the first base is inserted into the second limiting groove.

[0008] Optionally, the second heat-conducting plate comprises a second base and a second enclosing part, the second enclosing part is arranged on a side of the second base facing the first heat-conducting plate, the second enclosing part is connected with the first heat-conducting plate, and the second base, the second enclosing part and the first heat-conducting plate jointly enclose the test cavity.

[0009] Optionally, the first heat-conducting plate is provided with a first limiting groove facing the second heat-conducting plate, and the second base is inserted into the first limiting groove.

[0010] Optionally, the first heat-conducting plate is provided with a first positioning groove in communication with the test cavity on a side of the first heat-conducting plate facing the second heat-conducting plate, the first positioning groove extends from an edge of the first heat-conducting plate to a middle of the first heat-conducting plate, and the first temperature meter is arranged in the first positioning groove; and / or

[0011] the second heat-conducting plate is provided with a second positioning groove in communication with the test cavity on a side of the second heat-conducting plate facing the first heat-conducting plate, the second positioning groove extends from an edge of the second heat-conducting plate to a middle of the second heat-conducting plate, and the second temperature meter is arranged in the second positioning groove.

[0012] Optionally, the first heat-conducting plate is provided with a plurality of first convex points on a side of the first heat-conducting plate facing the second heat-conducting plate, and the plurality of first convex points are arranged in an array and spaced from each other; and / or

[0013] the second heat-conducting plate is provided with a plurality of second convex points on a side of the second heat-conducting plate facing the first heat-conducting plate, and the plurality of second convex points are arranged in an array and spaced from each other.

[0014] Optionally, the test device further comprises a plurality of gaskets, the plurality of gaskets are arranged between the first heat-conducting plate and the second heat-conducting plate to space the first heat-conducting plate and the second heat-conducting plate to form the test cavity.

[0015] Optionally, the test device further comprises a limiting sheet, the limiting sheet is connected with the gasket and abuts against an outer peripheral surface of the first heat-conducting plate and an outer peripheral surface of the second heat-conducting plate, respectively.

[0016] Optionally, the test device further comprises a thermostat, and the first heat-conducting plate, the second heat-conducting plate, the heating plate, the first temperature meter and the second temperature meter are arranged in the thermostat.

[0017] The test device has the following beneficial effects:

[0018] The utility model provides a test device for a kind of, test device includes first heat conduction plate, second heat conduction plate, heating plate, first temperature gauge and second temperature gauge, first heat conduction plate, second heat conduction plate, heating plate are sequentially arranged, and first heat conduction plate and second heat conduction plate are detachably connected to form test cavity, test cavity is used to fill heat-conducting adhesive, first temperature gauge is arranged in test cavity and is connected with first heat conduction plate, and second temperature gauge is arranged in test cavity and is connected with second heat conduction plate, so that first heat conduction plate can be connected or separated from second heat conduction plate, so that the first heat conduction plate of different size is replaced, in turn, the thickness of test cavity is adjusted, to fill the heat-conducting adhesive of different thickness, so as to realize the heat conduction performance of the heat-conducting adhesive of different thickness, avoid only testing the heat-conducting adhesive of one thickness, and simultaneously, the heat-conducting adhesive of different size is replaced to test performance, improve the test versatility of test device. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structure shown in these drawings without creative labor for those skilled in the art.

[0020] Fig. 1 It is the assembly structure schematic drawing of test device provided by the first embodiment of the utility model;

[0021] Fig. 2 It is the exploded structure schematic drawing of test device provided by the first embodiment of the utility model;

[0022] Fig. 3 It is another state structure exploded structure schematic drawing of test device provided by the first embodiment of the utility model;

[0023] Fig. 4 It is the assembly structure schematic drawing of test device provided by the second embodiment of the utility model;

[0024] Fig. 5 It is the assembly structure schematic drawing of test device provided by the fourth embodiment of the utility model;

[0025] Fig. 6 It is the assembly structure schematic drawing of test device provided by the fifth embodiment of the utility model;

[0026] Fig. 7 It is the exploded structure schematic drawing of test device provided by the fifth embodiment of the utility model.

[0027] EXPLANATION OF DRAWINGS:

[0028] 100, test device;

[0029] 10, first heat-conducting plate; 10a, test cavity; 10b, first limiting groove; 10c, first positioning groove; 11, first base; 12, first enclosing part;

[0030] 20, second heat-conducting plate; 20a, second limiting groove; 20b, second positioning groove; 21, second base; 22, second enclosing part;

[0031] 30, heating plate;

[0032] 40, first temperature meter;

[0033] 50, second temperature meter;

[0034] 60, gasket;

[0035] 70, limiting sheet. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to the drawings Figs. 1-7 The embodiment of the present application provides a test device 100 applied to a test device 100 for testing the heat-conducting performance of heat-conducting glue.

[0038] Please refer to the drawings Figs. 1-2 In the embodiment of the present application, the test device 100 includes a first heat-conducting plate 10, a second heat-conducting plate 20, a heating plate 30, a first temperature meter 40 and a second temperature meter 50. The first heat-conducting plate 10, the second heat-conducting plate 20 and the heating plate 30 are arranged in sequence, so that the first heat-conducting plate 10, the second heat-conducting plate 20 and the heating plate 30 are arranged in sequence from top to bottom. The first heat-conducting plate 10 and the second heat-conducting plate 20 are detachably connected to form a test cavity 10a, and the test cavity 10a is used to fill heat-conducting glue. The first heat-conducting plate 10 can be connected to or separated from the second heat-conducting plate 20, so that different sizes of the first heat-conducting plate 10 can be replaced, and the thickness of the test cavity 10a can be adjusted to fill heat-conducting glue of different thicknesses, so as to test the heat-conducting performance of heat-conducting glue of different thicknesses, and avoid testing only heat-conducting glue of one thickness. At the same time, different heat-conducting glue is replaced to test the performance, and the test versatility of the test device 100 is improved.

[0039] Please refer to the drawings Figs. 1-2The heating plate 30 heats the second heat-conducting plate 20 to adjust the temperature of the second heat-conducting plate 20. The first temperature meter 40 is arranged in the test cavity 10a and connected with the first heat-conducting plate 10 to test the temperature of the first heat-conducting plate 10. The second temperature meter 50 is arranged in the test cavity 10a and connected with the second heat-conducting plate 20 to test the temperature of the second heat-conducting plate 20, so that the temperature of the first heat-conducting plate 10 and the temperature of the second heat-conducting plate 20 are obtained by the first temperature meter 40 and the second temperature meter 50 respectively.

[0040] During the test, when the heat-conducting glue fills the test cavity 10a, the first temperature meter 40 and the second temperature meter 50 respectively measure the temperatures of the first heat-conducting plate 10 and the second heat-conducting plate 20, and record the temperature rise change values of the first heat-conducting plate 10 and the second heat-conducting plate 20 for 5-10 minutes. The measurement interval time is 1s, and the maximum temperature difference value and the average temperature difference value of the first heat-conducting plate 10 and the second heat-conducting plate 20 are obtained. By comparing the maximum temperature difference values and the average temperature difference values of different heat-conducting glue thicknesses, the appropriate heat-conducting glue thickness is determined. The greater the temperature difference value, the worse the heat-conducting performance of the heat-conducting glue, and the smaller the temperature difference value, the better the heat-conducting performance of the heat-conducting glue.

[0041] Please refer to the accompanying drawings Fig. 3 The first heat-conducting plate 10 includes a first base 11 and a first enclosing part 12, and the first enclosing part 12 is arranged on the side of the first base 11 facing the second heat-conducting plate 20, and the first enclosing part 12 is protruded from the first base 11 towards the second heat-conducting plate 20. So that the surface of the first base 11 facing the second heat-conducting plate 20 and the surface of the first enclosing part 12 facing the second heat-conducting plate 20 form a height difference. The first enclosing part 12 is connected with the second heat-conducting plate 20, and the first base 11, the first enclosing part 12 and the second heat-conducting plate 20 jointly enclose to form the test cavity 10a. The test cavity 10a is used to fill the heat-conducting glue, so as to change the thickness of the test cavity 10a by replacing the height difference between the surface of the first base 11 facing the second heat-conducting plate 20 and the surface of the first enclosing part 12 facing the second heat-conducting plate 20, so as to fill the heat-conducting glue with different thicknesses. Thus, the heat-conducting performance of the heat-conducting glue with different thicknesses can be tested, avoiding the test of only one thickness of heat-conducting glue, and improving the test versatility of the test device 100. At the same time, different heat-conducting glues are replaced to test the performance, which improves the test versatility of the test device 100.

[0042] Please refer to the accompanying drawings Fig. 3, the second heat-conducting plate 20 is provided with a second limiting groove 20a facing the first heat-conducting plate 10, the second limiting groove 20a is recessed from top to bottom of the second heat-conducting plate 20, and the outer contour of the first base 11 is matched with the inner contour of the second limiting groove 20a. The first base 11 is inserted into the second limiting groove 20a, so that the inner side wall of the second limiting groove 20a limits the position of the first base 11, prevents the first base 11 from moving in the left-right direction relative to the second heat-conducting plate 20, avoids changing the width of the test cavity 10a, ensures that the width of the filled heat-conducting glue is unchanged, and improves the test precision of the test device 100.

[0043] Please refer to the accompanying drawings Fig. 4 In the second embodiment, the second heat-conducting plate 20 includes a second base 21 and a second enclosing part 22, the second enclosing part 22 is arranged on the side of the second base 21 facing the first heat-conducting plate 10, the second enclosing part 22 is protruded from the second base 21 towards the first heat-conducting plate 10, so that the surface of the second base 21 facing the first heat-conducting plate 10 and the surface of the second enclosing part 22 facing the first heat-conducting plate 10 form a height difference. The second enclosing part 22 is connected with the first heat-conducting plate 10, and the second base 21, the second enclosing part 22 and the first heat-conducting plate 10 jointly enclose to form a test cavity 10a. The test cavity 10a is used for filling heat-conducting glue, so as to change the thickness of the test cavity 10a by replacing the height difference between the surface of the second base 21 facing the first heat-conducting plate 10 and the surface of the second enclosing part 22 facing the first heat-conducting plate 10, so as to fill heat-conducting glue of different thicknesses. Thus, the heat-conducting performance of heat-conducting glue of different thicknesses can be tested, the test device 100 can only test heat-conducting glue of one thickness is avoided, and the test versatility of the test device 100 is improved. At the same time, different heat-conducting glue is replaced to test the performance, and the test versatility of the test device 100 is improved.

[0044] Please refer to the accompanying drawings Fig. 4 , the first heat-conducting plate 10 is provided with a first limiting groove 10b facing the second heat-conducting plate 20, the first limiting groove 10b is recessed from bottom to top of the first heat-conducting plate 10, and the outer contour of the second base 21 is matched with the inner contour of the first limiting groove 10b. The second base 21 is inserted into the first limiting groove 10b, so that the inner side wall of the first limiting groove 10b limits the position of the second base 21, prevents the second base 21 from moving in the left-right direction relative to the first heat-conducting plate 10, avoids changing the width of the test cavity 10a, ensures that the width of the filled heat-conducting glue is unchanged, and improves the test precision of the test device 100.

[0045] Please refer to the accompanying drawings Fig. 3, the first heat-conducting plate 10 is provided with a first positioning groove 10c on the side facing the second heat-conducting plate 20, the first positioning groove 10c is recessed from the lower surface of the first heat-conducting plate 10, the first positioning groove 10c extends from the edge of the first heat-conducting plate 10 to the middle of the first heat-conducting plate 10, and the first temperature meter 40 is arranged in the first positioning groove 10c, so that the first temperature meter 40 is connected to the first heat-conducting plate 10 through the first positioning groove 10c, and the first temperature meter 40 can measure the temperature of the whole first heat-conducting plate 10, the position accuracy of the first temperature meter 40 relative to the first heat-conducting plate 10 is ensured, and the temperature measurement effect of the first temperature meter 40 is improved. Part of the first temperature meter 40 is exposed outside the first heat-conducting plate 10, so that the staff can observe the test temperature of the first temperature meter 40 relative to the first heat-conducting plate 10.

[0046] Please refer to the accompanying drawings Fig. 3 , the second heat-conducting plate 20 is provided with a second positioning groove 20b on the side facing the first heat-conducting plate 10, the second positioning groove 20b is recessed from the upper surface of the second heat-conducting plate 20, the second positioning groove 20b extends from the edge of the second heat-conducting plate 20 to the middle of the second heat-conducting plate 20, and the second temperature meter 50 is arranged in the second positioning groove 20b, so that the second temperature meter 50 is connected to the second heat-conducting plate 20 through the second positioning groove 20b, and the second temperature meter 50 can measure the temperature of the whole second heat-conducting plate 20, the position accuracy of the second temperature meter 50 relative to the second heat-conducting plate 20 is ensured, and the temperature measurement effect of the second temperature meter 50 is improved. Part of the second temperature meter 50 is exposed outside the second heat-conducting plate 20, so that the staff can observe the test temperature of the second temperature meter 50 relative to the second heat-conducting plate 20.

[0047] In the third embodiment, the first heat-conducting plate 10 is provided with a plurality of first protrusions on the side facing the second heat-conducting plate 20, the first protrusions are protruded downward from the lower surface of the first heat-conducting plate 10, and the plurality of first protrusions are arranged in an array with a spacing between each other, so that the first heat-conducting plate 10 can increase the holding force of the first heat-conducting plate 10 relative to the second heat-conducting plate 20 through the plurality of first protrusions, and the connection stability between the first heat-conducting plate 10 and the second heat-conducting plate 20 is improved.

[0048] The second heat-conducting plate 20 is provided with a plurality of second protrusions on the side facing the first heat-conducting plate 10, the second protrusions are protruded upward from the upper surface of the second heat-conducting plate 20, and the plurality of second protrusions are arranged in an array with a spacing between each other, so that the second heat-conducting plate 20 can increase the holding force of the second heat-conducting plate 20 relative to the first heat-conducting plate 10 through the plurality of second protrusions, and the connection stability between the second heat-conducting plate 20 and the first heat-conducting plate 10 is improved.

[0049] Please refer to the accompanying drawings Fig. 5In the fourth embodiment, the testing device 100 further comprises a plurality of spacers 60, which are arranged between the first heat-conducting plate 10 and the second heat-conducting plate 20 to space the first heat-conducting plate 10 and the second heat-conducting plate 20 to form the testing cavity 10a. The thickness of the testing cavity 10a is adjusted by arranging the plurality of spacers 60 to fill the heat-conducting glue of different thicknesses. Thus, the heat-conducting performance of the heat-conducting glue of different thicknesses can be tested, and the testing device 100 can test only one thickness of the heat-conducting glue, thereby improving the testing versatility of the testing device 100. Meanwhile, the testing performance of different heat-conducting glues is improved, thereby improving the testing versatility of the testing device 100.

[0050] The distance between the first heat-conducting plate 10 and the second heat-conducting plate 20 is adjusted by stacking the different spacers 60 in the up-down direction in sequence, thereby adjusting the thickness of the testing cavity 10a to fill the heat-conducting glue of different thicknesses. Thus, the heat-conducting performance of the heat-conducting glue of different thicknesses can be tested, and the testing device 100 can test only one thickness of the heat-conducting glue, thereby improving the testing versatility of the testing device 100.

[0051] Alternatively, the distance between the first heat-conducting plate 10 and the second heat-conducting plate 20 is adjusted by replacing the spacers 60 of different thicknesses, thereby adjusting the thickness of the testing cavity 10a to fill the heat-conducting glue of different thicknesses. Thus, the heat-conducting performance of the heat-conducting glue of different thicknesses can be tested, and the testing device 100 can test only one thickness of the heat-conducting glue, thereby improving the testing versatility of the testing device 100.

[0052] Please refer to the accompanying drawings Figs. 6-7 In the fifth embodiment, the testing device 100 further comprises a limiting sheet 70, which is arranged outside the spacer 60. The limiting sheet 70 is arranged perpendicularly to the spacer 60, and the limiting sheet 70 and the spacer 60 are connected and abut the outer circumferential surface of the first heat-conducting plate 10 and the outer circumferential surface of the second heat-conducting plate 20, respectively. Thus, the limiting sheet 70 limits the position of the spacer 60 relative to the first heat-conducting plate 10 or the second heat-conducting plate 20, thereby ensuring the position accuracy of the spacer 60 relative to the first heat-conducting plate 10 or the second heat-conducting plate 20. The position of the spacer 60 relative to the width of the first heat-conducting plate 10 or the width of the second heat-conducting plate 20 is prevented from being changed, thereby ensuring the width of the testing cavity 10a is unchanged, and improving the testing accuracy of the testing device 100.

[0053] In the sixth embodiment, the testing device 100 further comprises a thermostat. The first heat-conducting plate 10, the second heat-conducting plate 20, the heating plate 30, the first temperature meter 40, and the second temperature meter 50 are all assembled in the thermostat. Thus, the temperature of the first heat-conducting plate 10 and the second heat-conducting plate 20 during the testing process is ensured, and the first heat-conducting plate 10 and the second heat-conducting plate 20 are prevented from being affected by the outside environment and changing in temperature, thereby ensuring the testing accuracy of the testing device 100.

[0054] During testing, the first heat-conducting plate 10 is detached relative to the second heat-conducting plate 20 to fill the test cavity 10a, the first heat-conducting plate 10 is connected to the second heat-conducting plate 20, and the heating plate 30 heats the second heat-conducting plate 20 for 5-10 min. Then the first heat-conducting plate 10, the second heat-conducting plate 20, the heating plate 30, the first temperature meter 40 and the second temperature meter 50 are placed in a thermostat. The first temperature meter 40 and the second temperature meter 50 record the temperature rise change values of the first heat-conducting plate 10 and the second heat-conducting plate 20 respectively. The measurement interval time is 1 s, and the maximum temperature difference value and the average temperature difference value of the first heat-conducting plate 10 and the second heat-conducting plate 20 are obtained. By comparing the maximum temperature difference values and the average temperature difference values of different thicknesses of the heat-conducting glue, the appropriate thickness of the heat-conducting glue is determined. When the temperature difference value is larger, the heat-conducting performance of the heat-conducting glue is poorer, and when the temperature difference value is smaller, the heat-conducting performance of the heat-conducting glue is better.

[0055] The utility model discloses the beneficial effect lies in:

[0056] The utility model provides a kind of test device 100 applied to, test device 100 includes first heat-conducting plate 10, second heat-conducting plate 20, heating plate 30, first temperature meter 40 and second temperature meter 50, first heat-conducting plate 10, second heat-conducting plate 20, heating plate 30 are sequentially arranged, and test cavity 10a is formed between first heat-conducting plate 10 and second heat-conducting plate 20 and can be detached connection, test cavity 10a is used to fill heat-conducting glue, first temperature meter 40 is arranged in test cavity 10a and is connected with first heat-conducting plate 10, and second temperature meter 50 is arranged in test cavity 10a and is connected with second heat-conducting plate 20, so that first heat-conducting plate 10 can be connected or separated from second heat-conducting plate 20, so that different sizes of first heat-conducting plate 10 can be replaced, and then the thickness of test cavity 10a is adjusted, to fill the heat-conducting glue of different thickness, so that the heat-conducting performance of the heat-conducting glue of different thickness is tested, avoid only testing the heat-conducting glue of one thickness, and simultaneously, different heat-conducting glue is replaced to test performance, improve the test versatility of test device 100.

[0057] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0058] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a middle element.

[0059] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0060] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the utility model concept of the present application is included in the patent protection scope of the present application.

Claims

1. A testing apparatus for testing the thermal conductivity of thermally conductive adhesives, characterized in that, include: A first heat-conducting plate, a second heat-conducting plate, a heating plate, a first thermometer, and a second thermometer are arranged sequentially. The first heat-conducting plate and the second heat-conducting plate are detachably connected to form a test cavity, which is filled with thermally conductive adhesive. The first thermometer is disposed in the test cavity and connected to the first heat-conducting plate, and the second thermometer is disposed in the test cavity and connected to the second heat-conducting plate.

2. The testing apparatus according to claim 1, characterized in that, The first heat-conducting plate includes a first base and a first enclosure portion. The first enclosure portion is disposed on the side of the first base facing the second heat-conducting plate. The first enclosure portion and the second heat-conducting plate are connected. The first base, the first enclosure portion, and the second heat-conducting plate together enclose the test cavity.

3. The testing apparatus according to claim 2, characterized in that, The second heat-conducting plate has a second limiting groove facing the first heat-conducting plate, and the first base is inserted into the second limiting groove.

4. The testing apparatus according to claim 1, characterized in that, The second heat-conducting plate includes a second base and a second enclosure. The second enclosure is disposed on the side of the second base facing the first heat-conducting plate. The second enclosure and the first heat-conducting plate are connected. The second base, the second enclosure, and the first heat-conducting plate together enclose the test cavity.

5. The testing apparatus according to claim 4, characterized in that, The first heat-conducting plate has a first limiting groove facing the second heat-conducting plate, and the second base is inserted into the first limiting groove.

6. The testing apparatus according to any one of claims 1 to 5, characterized in that, The first heat-conducting plate has a first positioning groove on the side facing the second heat-conducting plate that communicates with the test cavity. The first positioning groove extends from the edge of the first heat-conducting plate toward the middle of the first heat-conducting plate, and the first thermometer is assembled in the first positioning groove. and / or The second heat-conducting plate has a second positioning groove on the side facing the first heat-conducting plate that communicates with the test cavity. The second positioning groove extends from the edge of the second heat-conducting plate toward the middle of the second heat-conducting plate, and the second thermometer is assembled in the second positioning groove.

7. The testing apparatus according to any one of claims 1 to 5, characterized in that, The first heat-conducting plate has a plurality of first protrusions on its side facing the second heat-conducting plate, and the plurality of first protrusions are arranged in an array at intervals; and / or The second heat-conducting plate has multiple second protrusions on its side facing the first heat-conducting plate, and the multiple second protrusions are arranged in an array with intervals between them.

8. The testing apparatus according to any one of claims 1 to 5, characterized in that, The testing device also includes multiple gaskets, which are disposed between the first heat-conducting plate and the second heat-conducting plate to form the test cavity by spacing between the first heat-conducting plate and the second heat-conducting plate.

9. The testing apparatus according to claim 8, characterized in that, The testing device further includes a limiting piece, which is connected to the gasket and abuts against the outer peripheral surface of the first heat-conducting plate and the outer peripheral surface of the second heat-conducting plate, respectively.

10. The testing apparatus according to any one of claims 1 to 5, characterized in that, The testing device also includes a constant temperature chamber, in which the first heat-conducting plate, the second heat-conducting plate, the heating plate, the first thermometer, and the second thermometer are all assembled.

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