Thermal insulation test apparatus

Abstract

The present patent relates to the technical field of thermal insulation performance testing, and specifically relates to a thermal insulation test apparatus. The thermal insulation test apparatus provided in the present patent comprises a driving component, which is configured to provide pressure for a sample under test; a thermal insulation component, which has a cavity used for thermal insulation; and a heating component, which is arranged in the cavity, wherein the driving component can push the sample into the cavity, such that the sample can fit with the cavity to form a heating cavity that encloses the heating component therein. Providing the thermal insulation component having the cavity can wrap the sample, such that the sample can partition the cavity to form a heating cavity that encloses the heating component therein, and the heating component heats the sample under a closed condition, thereby ensuring high accuracy of testing.

Description

Thermal insulation testing device TECHNICAL FIELD

[0001] The present patent relates to the technical field of thermal insulation performance testing, in particular to a thermal insulation testing device. BACKGROUND

[0002] The thermal insulation testing device in the prior art usually directly covers the sample on the heating device, and detects the temperature of the two end surfaces of the sample to test the ability of the sample to block a specific high temperature. However, such a device usually has large heat loss, which can cause unstable temperature detection of the sample and thus cause large errors. SUMMARY

[0003] In order to solve or at least partially solve the above technical problems, the present patent provides a thermal insulation testing device, comprising:

[0004] A driving component for providing pressure to the sample to be tested;

[0005] A heat preservation component having a cavity for heat preservation;

[0006] A heating component arranged in the cavity;

[0007] The driving component can push the sample into the cavity, so that the sample can cooperate with the cavity to form a heating cavity enclosing the heating component.

[0008] Further technical solutions can also be that the heat preservation component further comprises:

[0009] A heat preservation shell having an opening arranged thereon, the opening being in communication with the cavity;

[0010] A heat preservation material arranged in the heat preservation shell, the heat preservation material forming the cavity.

[0011] Further technical solutions can also be that the heat preservation material forms a step at the bottom of the cavity, so that the periphery of the sample can abut on the step and form the heating cavity.

[0012] Another technical solution can also be that the heat preservation material protrudes into the cavity, so that the side wall of the cavity formed by the heat preservation material can abut on the side wall of the sample.

[0013] Further technical solutions can also be that the driving component can at least partially extend into the cavity.

[0014] Further technical solutions can also be that the heat preservation shell comprises:

[0015] A first shell body forming a cavity for accommodating the heat preservation material;

[0016] The second shell is placed on top of the first shell, and the second shell has a hollowed-out opening.

[0017] A further technical solution could be that the drive component includes:

[0018] The cold plate assembly is connected to the sample and pushes the sample into the cavity;

[0019] The guide assembly, connected to the cold plate assembly, is used to guide the movement of the cold plate assembly;

[0020] The drive assembly, connected to the cold plate assembly, is used to drive the cold plate assembly to move.

[0021] Further technical solutions could include:

[0022] The first cold plate is connected to the drive assembly and is equipped with a cooling component. The first cold plate is used to close the opening.

[0023] The second cold plate is used to connect with the sample and can extend into the cavity to push the sample into the cavity;

[0024] The third cold plate is placed between the first and second cold plates for heat insulation; the two sides of the third cold plate are connected to the first cold plate at intervals by brackets.

[0025] Further technical solutions could include the following:

[0026] Multiple support pillars are evenly distributed in the gap between the first and third cold plates.

[0027] Further technical solutions could include the following pillars:

[0028] The connecting column is installed on the first cold plate;

[0029] The connecting block has one end threadedly connected to the connecting column and the other end rotatably connected to the third cold plate.

[0030] Compared with existing technologies, this patent has the following technical advantages:

[0031] The use of a cavity-like insulating component encloses the sample, allowing it to isolate the heating element and form a sealed heating chamber. The heating element can only transfer heat through the sample, ensuring high detection accuracy. The heating chamber is located inside the insulating component, meaning external heat cannot easily enter through it, and heat within the chamber is also difficult to dissipate to the outside. This design effectively reduces the impact of external temperature changes on test results, improving detection accuracy and reliability. Attached Figure Description

[0032] In order to more clearly illustrate the embodiments of the present patent, the related drawings will be briefly introduced as follows. It can be understood that the drawings described below are only used to illustrate some embodiments of the present patent, and those skilled in the art can also obtain many other technical features and connection relationships not mentioned in the present text according to the drawings.

[0033] Fig. 1 is a schematic perspective view of a heat insulation testing device according to an embodiment of the present patent;

[0034] Fig. 2 is another schematic view of a heat insulation testing device according to an embodiment of the present patent;

[0035] Fig. 3 is a schematic cross-sectional view of a heat insulation testing device according to an embodiment of the present patent;

[0036] Fig. 4 is another schematic cross-sectional view of a heat insulation testing device according to an embodiment of the present patent;

[0037] Fig. 5 is a schematic cross-sectional view of a heat insulation component of a heat insulation testing device according to an embodiment of the present patent;

[0038] Fig. 6 is another schematic cross-sectional view of a heat insulation component of a heat insulation testing device according to an embodiment of the present patent.

[0039] Legend: A, heat insulation testing device; 1, heating component; 2, heat insulation component; 21, cavity; 22, heat insulation shell; 221, opening; 222, first shell; 223, second shell; 224, heat insulation plate; 23, heat insulation material; 231, step; 24, heating cavity; 3, driving component; 31, cold plate assembly; 311, first cold plate; 3111, cooling component; 312, second cold plate; 313, third cold plate; 314, support column; 3141, connecting column; 3142, connecting block; 32, guide assembly; 33, driving assembly; 4, sample. DETAILED DESCRIPTION

[0040] The present patent will be described in detail below with reference to the drawings.

[0041] Embodiment one

[0042] The test result of the sample 4 in the prior art heat insulation testing device A is affected by many factors such as pressure and heat insulation effect. When the heat insulation effect of the device does not meet the expectation, heat may escape, and the test result may be greatly deviated due to repeated tests, which may cause the test of the temperature of the sample 4 after heat insulation to be inaccurate. In order to solve the above problems, the present embodiment provides a heat insulation testing device A, specifically, as shown in Figs. 1 and 6, the heat insulation testing device A comprises:

[0043] The driving component 3 is used to move the sample 4 to be tested and provide pressure for the sample 4;

[0044] a heat preservation component 2 having a cavity 21 for heat preservation;

[0045] a heating component 1 arranged in the cavity 21;

[0046] The driving component 3 can push the sample 4 into the cavity 21 so that the sample 4 can cooperate with the cavity 21 to form a heating cavity 24 enclosing the heating component 1.

[0047] As shown in FIG. 1 and FIG. 6, the heating component 1 is arranged in the cavity 21, and the sample 4 is mounted on the driving component 3. The driving component 3 is designed to be movable along a straight track so as to send the sample 4 into the cavity 21 of the heat preservation component 2. The sample 4 located in the cavity 21 can block the cavity 21 to form a relatively closed heating cavity 24, and the heating component 1 located in the cavity 21 is enclosed in the heating cavity 24 by the sample 4. In the process of heat insulation test, after the heating component 1 is heated to a set temperature, the driving component 3 pushes the sample 4 into the cavity 21 to enclose the heating component 1 in the heating cavity 24, and the temperature changes of the heating cavity 24 and the other side of the sample 4 relative to the heating cavity 24 within a certain time are detected respectively, so as to obtain the heat insulation capacity of the sample 4 to a specific temperature.

[0048] In the process of heat insulation test, the heat preservation component 2 wraps the sample 4, and the cavity 21 in the heat preservation component 2 is blocked by the sample 4 to form the heating cavity 24. Since the heating cavity 24 is a relatively closed cavity 21 formed by the sample 4 blocking the cavity 21 of the heat preservation component 2, the heating component 1 located in the heating cavity 24 can only transfer heat to the other side of the sample 4 through the sample 4, thereby ensuring high accuracy of detection. In addition, the heating cavity 24 is located inside the heat preservation component 2, which means that external heat is difficult to enter the heating cavity 24 through the heat preservation component 2, and the heat in the heating cavity 24 is also difficult to dissipate to the outside through the heat preservation component 2. This design effectively reduces the influence of external temperature change on the test results, and improves the accuracy and reliability of the detection.

[0049] In this embodiment, the heating component 1 is provided with a temperature detection component for detecting the temperature of the heating component 1. The temperature detection component is arranged near the heating component 1, which can be used to detect the temperature of the heating component 1 and provide signal feedback to the heating component 1, so that the heating component 1 can maintain a specific temperature after being heated. It is worth mentioning that the heating component 1 contacts the hot side of the sample 4 (the side of the sample 4 contacting the heating component 1) during the heat insulation test, and the temperature detection component can detect the temperature of the heating component 1 and the hot side of the sample 4 at the same time during the heat insulation test.

[0050] On the basis of the previous embodiment, at least one temperature detection component can also be arranged on the cold side (the side opposite to the hot side) of the sample 4 to detect the temperature of the cold side of the sample 4 during the heating process, so as to obtain the heat insulation capacity of the sample 4 at a specific temperature in combination with the temperature detected by the temperature detection component arranged on the hot side.

[0051] In an optional embodiment, the hot side (the side of the sample 4 in contact with the heating component 1) and the cold side (the side opposite to the hot side) of the sample 4 can also be provided with a plurality of temperature detection components, respectively, for detecting the temperature of different regions, and the average value of the temperatures detected by the temperature detection components in different regions is taken to obtain a more accurate temperature detection result.

[0052] In other embodiments, a temperature detection component can also be arranged on the heat preservation component 2, which is arranged in a position capable of contacting the hot side of the sample 4 before the sample 4 enters the cavity 21 in the heat preservation component 2, and detects the temperature of the hot side of the sample 4 after the sample 4 is sent into the cavity 21.

[0053] The heat insulation test equipment A arranged as above has the following technical effects:

[0054] 1. The heat preservation component 2 with the cavity 21 can wrap the sample 4, so that the sample 4 can block the cavity 21 to form a heating cavity 24 in which the heating component 1 is enclosed, and the heating component 1 can only transmit heat through the sample 4, thereby ensuring high accuracy of the detection.

[0055] 2. The heating cavity 24 is located inside the heat preservation component 2, which means that external heat is difficult to enter the heating cavity 24 through the heat preservation component 2, and the heat in the heating cavity 24 is also difficult to dissipate to the outside through the heat preservation component 2. This design effectively reduces the influence of external temperature changes on the test results, and improves the accuracy and reliability of the detection.

[0056] Embodiment Two

[0057] This embodiment also discloses a heat insulation test equipment A. This embodiment further improves the first embodiment, and the improvement is that the heat preservation component 2 is further split into a heat preservation shell 22 and a heat preservation material 23. Specifically,

[0058] Referring to FIGS. 1-5, the heat preservation component 2 of the heat insulation test equipment A further comprises:

[0059] The heat preservation shell 22 is provided with an opening 221, and the opening 221 is in communication with the cavity 21;

[0060] The heat preservation material 23 is arranged in the heat preservation shell 22, and the heat preservation material 23 can enclose the cavity 21.

[0061] The heat preservation shell 22 is a box structure, and is filled with the heat preservation material 23 to form a container with heat preservation function. The heat preservation shell 22 is provided with an opening 221 through which the sample 4 can enter, and the opening 221 is in communication with the cavity 21 so that the sample 4 can enter the cavity 21 through the opening 221. The heat preservation material 23 is filled in the heat preservation shell 22, and the heat preservation material 23 can be enclosed into the inner wall of the cavity 21 along the opening 221 of the heat preservation shell 22. The sample 4 can penetrate into the cavity 21 along the inner wall formed by the heat preservation material 23, and the heat preservation material 23 can wrap the sample 4 to perform the heat insulation test.

[0062] In the heat preservation component 2 provided as above, the heat preservation material 23 can not only reduce the energy consumption in the heating process of the heating component 1 and reduce the production cost, but also reduce the radiation and transmission of heat to the surrounding environment, and improve the safety of the heat insulation test equipment A and prolong the service life of the equipment.

[0063] In optional embodiments, the heat preservation material 23 can be selected from an aluminum silicate needle blanket. The temperature range of the aluminum silicate needle blanket is generally between 800 DEG C and 1600 DEG C, and the heat resistance is excellent. The aluminum silicate needle blanket has good ductility, can remain stable at high temperature, is not easy to deform, can maintain the stability of the inner wall shape of the enclosed cavity 21, has good shock resistance, has white color and regular size, is pure and environmentally friendly without any binder.

[0064] In some embodiments, referring to FIGS. 3 to 6, the heat preservation material 23 can form a step 231 at the bottom of the cavity 21, so that the sample 4 can abut on the step 231 and form a heating cavity 24.

[0065] The heat preservation material 23 can be molded into the step 231 surrounding the inner wall of the cavity 21. During the heat insulation test, after the sample 4 is sent into the cavity 21 by the driving component 3, the sample 4 can abut on the step 231, and the bottom surface of the sample 4 and the inner wall of the step 231 can be enclosed to form the heating cavity 24. Through the arrangement of the step 231, after the sample 4 is sent into the cavity 21, the sample 4 can abut on the step 231 under the pressure of the driving component 3 to form the heating cavity 24, and the sealing performance of the heating cavity 24 is ensured, and the high precision of the detection is ensured.

[0066] In some other embodiments, the heat insulation material 23 protrudes into the cavity 21, so that the side wall of the cavity 21 formed by the heat insulation material 23 can abut against the side wall of the sample 4. Specifically, the size of the cavity 21 can be set to be smaller than the size of the sample 4, so that the sample 4 can enter the cavity 21, and the part of the structure of the heat insulation material 23 around the side surface of the cavity 21 abuts against the side surface of the sample 4, which helps the sample 4 to block the cavity 21, so as to form a heating cavity 24 with better airtightness. The temperature error in the heating cavity 24 with good airtightness after the sample 4 is insulated is small and more stable, and the heat insulation capacity of the sample 4 to a specific temperature can be known after measurement.

[0067] For example, the heat insulation material 23 can be selected as an aluminum silicate needle blanket, the aluminum silicate needle blanket is filled in the heat insulation shell 22, and the aluminum silicate needle blanket protrudes inward around a part of the side surface of the inner wall. The protruding side surface can abut against the side surface of the sample 4 and make the sample 4 form a block.

[0068] Embodiment three

[0069] The embodiment also discloses a heat insulation testing device A. The embodiment further improves the second embodiment, and the improvement is that the heat insulation shell 22 is further split into a first shell 222 and a second shell 223, so that the heat insulation shell 22 can be disassembled in a split manner, the heat insulation material 23 can be conveniently replaced, and the maintenance cost is reduced. Specifically, referring to FIG. 1, FIG. 4 and FIG. 5, the heat insulation shell 22 of the heat insulation testing device A comprises:

[0070] The first shell 222 forms a cavity for accommodating the heat insulation material 23.

[0071] The second shell 223 is arranged on the first shell 222, and the second shell 223 is hollow and forms an opening 221.

[0072] In order to conveniently arrange the heat insulation material 23, the heat insulation shell 22 can be further split into the first shell 222 and the second shell 223. The first shell 222 and the second shell 223 are installed together in a detachable manner, and the heat insulation material 23 is arranged between the first shell 222 and the second shell 223.

[0073] The shape of the first shell 222 can be set as a box shape with a box opening, and the first shell 222 forms a cavity inside for arranging the heat insulation material 23. After the heat insulation material 23 is arranged in the first shell 222, the second shell 223 can be arranged on the box opening of the first shell 222, so as to cover the heat insulation material 23 exposed to the box opening of the first shell 222.

[0074] The heat preservation material 23 in the first shell 222 can enclose a cavity 21 in the middle of the first shell 222, which can form a package for the sample 4. In addition, the second shell 223 is hollowed out to form an opening 221, which is in communication with the cavity 21, so that the sample 4 can enter the cavity 21 through the opening 221 for heat insulation testing.

[0075] The heat preservation shell 22 arranged as above encloses the heat preservation material 23 by splitting the heat preservation shell 22 into two parts of the first shell 222 and the second shell 223, which can conveniently adjust the shape of the heat preservation material 23 to more easily enclose the cavity 21 structure without the second shell 223. In addition, after a long time of heat insulation testing, the heat preservation material 23 is inevitably damaged or its heat preservation performance is reduced. After the second shell 223 is removed from the first shell 222, the heat preservation material 23 can be easily replaced, which can reduce maintenance costs and also adjust the shape of the heat preservation material 23 to change different types of cavities 21 to adapt to different types of samples 4. In addition, the second shell 223 is hollowed out to form the opening 221. When different types and sizes of samples 4 need to be tested, the second shell 223 can be replaced with another second shell 223 hollowed out with different size openings 221 to adapt to the size of the sample 4.

[0076] When the heating component 1 is heated, heat is inevitably radiated to the outside through the first shell 222, especially other structural components at the bottom of the first shell 222. To this end, in some other embodiments, a heat insulation structure can be added at the bottom of the first shell 222 to reduce the influence of the heat radiated by the heat preservation shell 22 on other parts. Specifically, referring to FIGS. 1, 3 and 4, the heat preservation shell 22 of the heat insulation testing device A further comprises a heat preservation plate 224, and the first shell 222 is detachably mounted on the heat preservation plate 224.

[0077] The heat preservation shell 22 can further comprise a heat preservation plate 224, which is arranged at the bottom of the heat preservation shell 22, and the first shell 222 is detachably mounted on the heat preservation plate 224, and the heat preservation shell 22 can also be replaced. Specifically, the heat preservation plate 224 can be arranged at the bottom of the first shell 222, and the planar size of the heat preservation plate 224 is greater than the size of the outer wall of the first shell 222, so that the projection view of the first shell 222 on the heat preservation plate 224 can completely fall within the plane of the heat preservation plate 224. The heat preservation plate 224, the first shell 222 and the second shell 223 can all be replaced, to adapt to different types and sizes of samples 4.

[0078] For example, when a new sample 4 with a size larger than the original sample 4 needs to be detected, the cavity 21 size suitable for the original sample 4 will not be suitable for accommodating the new sample 4, and the opening 221 of the first shell 222 will also not be suitable for passing the new sample 4, at this time, the first shell 222 and the second shell 223 can be replaced with the same type of components of other sizes for the new sample 4 to carry out the heat insulation test. When the size of the first shell 222 is larger than the heat preservation plate 224, the heat preservation plate 224 can be replaced at the same time to set a new first shell 222.

[0079] In addition, the heat preservation plate 224 can absorb and insulate a certain amount of heat from the first shell 222 and the heat preservation material 23, so as to prevent the heat of the first shell 222 and the heat preservation material 23 from spreading to other components below the heat preservation plate 224 and causing the components to be damaged by heat, and can reduce the heat diffusion inside the heat preservation component 2.

[0080] Embodiment Four

[0081] The embodiment also discloses a heat insulation test device A. The embodiment further improves the first, second or third embodiment, and the improvement is that the driving component 3 can at least partially extend into the cavity 21.

[0082] As shown in FIGS. 1 and 2, at least part of the driving component 3 can extend into the cavity 21 inside the heat preservation component 2 together with the sample 4, so that the driving component 3 can at least partially close the opening 221 of the cavity 21, so that external heat is difficult to enter the cavity 21 through the opening 221, and the heat in the cavity 21 is also difficult to dissipate to the outside through the opening 221, that is, the heat exchange between the cavity 21 and the outside is reduced, effectively reducing the influence of the change of the outside temperature on the test result, and improving the accuracy and reliability of the detection.

[0083] In some embodiments, as shown in FIGS. 1 and 2, the driving component 3 comprises:

[0084] a cold plate assembly 31 connected with the sample 4 and pushing the sample 4 into the cavity 21;

[0085] a guide assembly 32 connected with the cold plate assembly 31 and used for guiding the movement of the cold plate assembly 31;

[0086] a driving assembly 33 connected with the cold plate assembly 31 and used for driving the movement of the cold plate assembly 31.

[0087] The cold plate assembly 31 is used to connect with the sample 4 and can be driven to move by the driving assembly 33 to push the sample 4 into the cavity 21. Specifically, the cold plate assembly 31 can extend into the cavity 21 to push the sample 4 into the cavity 21 and close the opening 221 of the cavity 21, reducing the heat exchange between the cavity 21 and the outside, effectively reducing the influence of the temperature change of the outside on the test result, improving the accuracy and reliability of the detection. In this embodiment, the cold plate assembly 31 has a heat insulation function, preventing the heat exchange between the cavity 21 and the outside through the cold plate assembly 31, effectively reducing the influence of the temperature change of the outside on the test result, improving the accuracy and reliability of the detection. It should be noted that the cold plate assembly 31 is provided with a temperature detection component for detecting the temperature of the cold plate assembly 31, and when the temperature of the cold plate assembly 31 exceeds the rated temperature, the temperature detection component can feed back the heating component 1 to stop continuing to heat.

[0088] Referring to FIGS. 1 and 2, the cold plate assembly 31 comprises:

[0089] The first cold plate 311 is connected with the driving assembly 33, and the first cold plate 311 is provided with a cooling component 3111, and the first cold plate 311 is used to close the opening 221.

[0090] The second cold plate 312 is used to connect with the sample 4 and can extend into the cavity 21 to push the sample 4 into the cavity 21.

[0091] The third cold plate 313 is arranged between the first cold plate 311 and the second cold plate 312 and is used for heat insulation. The two sides of the third cold plate 313 are connected with the first cold plate 311 through a support.

[0092] Specifically, the size of the first cold plate 311 is larger than that of the heat preservation component 2, so that the first cold plate 311 covers the upper surface of the heat preservation component 2 under the pushing of the driving assembly 33, thereby closing the opening 221 of the cavity 21 and reducing the heat exchange between the cavity 21 and the outside. In addition, in this embodiment, the first cold plate 311 with a large size is used to close the opening 221 of the cavity 21 and is connected with the guiding assembly 32. During the heat insulation test, part of the heat in the cavity 21 can be transferred to the first cold plate 311, so that the temperature difference of the first cold plate 311 before and after the heat insulation test is large, and the first cold plate 311 with a large size is prone to deformation. Therefore, the cooling component 3111 is arranged on the first cold plate 311, and the cooling component 3111 is used to cool the first cold plate 311, so that the temperature of the first cold plate 311 can be relatively stable, the temperature difference of the first cold plate 311 before and after the heat insulation test is reduced, and the deformation of the first cold plate 311 is avoided. Specifically, the cooling component 3111 can be a water-cooled elbow pipe, which is arranged on the first cold plate 311 in the form of multiple rows of serpentine.

[0093] In this embodiment, the cold plate assembly 31 can further include a plurality of temperature detection components, which are arranged on the first cold plate 311, the second cold plate 312 and the third cold plate 313 respectively and detect the temperature of each cold plate.

[0094] In the preferred embodiment, since the second cold plate 312 directly contacts the cold side of the sample 4, the temperature detection component can be arranged on the second cold plate 312, and the temperature of the sample 4 cold side can be measured by detecting the temperature of the second cold plate 312. The second cold plate 312 in this embodiment can be made of a material with good thermal conductivity, such as copper, and the thickness can be set to be relatively thin, so as to enhance the thermal conductivity of the second cold plate 312 and make the temperature detection component more accurately detect the temperature of the surface of the sample 4 through the second cold plate 312.

[0095] In further embodiments, when the temperature of the first cold plate 311, the second cold plate 312 and / or the third cold plate 313 exceeds the rated temperature, the temperature detection component can send a signal to the alarm to issue an alarm, or remind the staff to adjust the equipment through a temperature instrument and the like, thereby improving the safety of the heat insulation test equipment A as a whole.

[0096] As shown in FIG. 3 to FIG. 5, the second cold plate 312 and the third cold plate 313 are sized to fit into the opening 221 of the cavity 21, and both can extend into the cavity 21 and further close the opening 221 of the cavity 21, reducing the heat exchange between the cavity 21 and the outside, effectively reducing the influence of the outside temperature change on the test results, and improving the accuracy and reliability of the detection. In this embodiment, the third cold plate 313 is made of a heat insulation material, which can effectively reduce the heat exchange between the cavity 21 and the outside. In addition, the two sides of the third cold plate 313 are connected with the first cold plate 311 through the supports, so that the first cold plate 311 and the third cold plate 313 can be spaced apart, and the heat transfer between them can be further reduced.

[0097] In this embodiment, the second cold plate 312 is in direct contact with the sample 4, and the temperature detection component for detecting the temperature of the other side of the sample 4 relative to the heating cavity 24 can be arranged on the second cold plate 312. In some more preferred embodiments, the second cold plate 312 can be made of a material with good thermal conductivity, such as copper. The purpose of such arrangement is to enable the second cold plate 312 to better absorb the heat transferred from the heating component 1 through the sample 4, and to play a role of heat equalization, so that the temperature of each region of the sample 4 relative to the other side of the heating cavity 24 is uniform, and thus the temperature measured by the temperature detection component for detecting the temperature of the other side of the sample 4 relative to the heating cavity 24 is more accurate, and the accuracy and reliability of the detection are improved.

[0098] It is worth mentioning that in this embodiment, the side surfaces of the second cold plate 312 and the third cold plate 313 around the periphery can abut against the side walls of the cavity 21, so as to better close the cavity 21 and further reduce the heat exchange between the cavity 21 and the outside.

[0099] Since the third cold plate 313 is connected with the first cold plate 311 only through the supports on the two sides, the driving force of the driving assembly 33 can only be transmitted between the two sides of the third cold plate 313, which may result in uneven stress on the third cold plate 313, causing deformation of the third cold plate 313 and uneven pressure on the sample 4. In addition, the uneven stress on the sample 4 causes differences in the deformation degree of each region of the sample 4, so that the heat insulation performance of each region of the sample 4 is different, which may affect the accuracy and reliability of the detection.

[0100] Therefore, in some preferred embodiments, the cold plate assembly 31 further comprises:

[0101] A plurality of supports 314 are uniformly distributed in the space between the first cold plate 311 and the third cold plate 313.

[0102] By setting the plurality of struts 314 uniformly distributed between the first cold plate 311 and the third cold plate 313, the driving force of the driving assembly 33 can be more uniformly transmitted to the third cold plate 313, preventing the third cold plate 313 from deforming, thereby ensuring that the sample 4 can be uniformly stressed, improving the accuracy and reliability of detection. In addition, in this embodiment, in order to reduce heat transfer, the material of the strut 314 can be a material with a low thermal conductivity, such as polystyrene.

[0103] Referring to FIG. 3, in some other embodiments, in order to further ensure that the sample 4 is uniformly stressed, the strut 314 includes:

[0104] A connecting column 3141 is provided on the first cold plate 311.

[0105] A connecting block 3142 is threadedly connected to one end of the connecting column 3141 and rotationally connected to the other end of the third cold plate 313.

[0106] In this way, by rotating the connecting block 3142, the relative position of the connecting block 3142 on the connecting column 3141 can be adjusted through the threaded connection between the connecting block 3142 and the connecting column 3141, the gap between the third cold plate 313 and the first cold plate 311 can be controlled, and the flatness of the third cold plate 313 can be adjusted, thereby ensuring that the sample 4 is uniformly stressed.

[0107] Finally, it should be noted that those skilled in the art can understand that, in order to enable the reader to better understand the present patent, the embodiments of the present patent propose many technical details. However, even without these technical details and various changes and modifications based on the above embodiments, the technical solutions claimed by the claims of the present patent can be substantially realized. Therefore, in practical applications, various changes can be made to the above embodiments in form and detail without departing from the spirit and scope of the present patent.

Claims

1. A heat shield testing apparatus characterized by, The utility model relates to a sample heating device, comprising: a driving component for providing pressure to a sample to be tested, a heat preservation component having a cavity for heat preservation; a heating component arranged in the cavity; the driving component can push the sample into the cavity so that the sample can cooperate with the cavity to form a heating cavity enclosing the heating component.

2. The insulated test apparatus of claim 1, wherein, The heat preservation component further comprises: a heat preservation shell having an opening arranged thereon, the opening being in communication with the cavity; a heat preservation material arranged in the heat preservation shell, the heat preservation material forming the cavity.

3. The heat shield testing apparatus according to claim 2, wherein The heat preservation material forms a step at the bottom of the cavity so that the periphery of the sample can abut against the step and form the heating cavity.

4. The insulated test apparatus of claim 2, wherein, The heat preservation material protrudes into the cavity so that the side wall of the cavity formed by the heat preservation material can abut against the side wall of the sample.

5. The insulated test apparatus of claim 2, wherein, The driving component can at least partially extend into the cavity.

6. The insulated test apparatus of claim 3, wherein, The heat preservation shell comprises: a first shell forming a cavity for accommodating the heat preservation material; a second shell arranged on the first shell, the second shell being hollow to form the opening.

7. The heat shield testing apparatus of claim 5, wherein The driving component comprises: a cold plate assembly connected to the sample and pushing the sample into the cavity; a guide assembly connected to the cold plate assembly for guiding the movement of the cold plate assembly; a driving assembly connected to the cold plate assembly for driving the movement of the cold plate assembly.

8. The heat shield testing apparatus of claim 7, wherein, The cold plate assembly comprises: a first cold plate connected to the driving assembly, the first cold plate being provided with a cooling component, the first cold plate being used for enclosing the opening; a second cold plate connected to the sample and capable of extending into the cavity to push the sample into the cavity; a third cold plate arranged between the first cold plate and the second cold plate for heat insulation, the two sides of the third cold plate being connected to the first cold plate through a support.

9. The heat shield testing apparatus of claim 8, wherein, The cold plate assembly further comprises: a plurality of supports uniformly distributed in the space between the first cold plate and the third cold plate.

10. The heat shield testing apparatus of claim 9, wherein, The support comprises: a connecting column arranged on the first cold plate; a connecting block threadedly connected to one end of the connecting column and rotationally connected to the other end of the third cold plate.

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