Electrical performance testing device

Abstract

The utility model relates to the technical field of photovoltaics and semiconductors, in particular to an electrical performance testing device which can test the electrical performance of inorganic non-metallic material powder. The electrical performance testing device comprises a heating assembly, a sample loading assembly and an electrical performance data acquisition assembly. The heating assembly is provided with a first containing cavity, and the sample loading assembly is arranged in the first containing cavity. The sample loading assembly is provided with a first conductive part, a second conductive part and a connecting part, the first conductive part, the second conductive part and the connecting part are encircled to form a closed second accommodating cavity, and the second accommodating cavity can accommodate an inorganic non-metallic material powder sample. The inorganic non-metallic material powder sample is in contact with the first conductive part and the second conductive part, and the connecting part is made of an insulating material. The first conductive part and the second conductive part are electrically connected with the positive electrode and the negative electrode of the power supply respectively, and the electrical performance data acquisition assembly is electrically connected with the first conductive part and the second conductive part respectively, so that the electrical performance of the inorganic non-metallic material powder is tested.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of photovoltaic and semiconductor technology, and in particular to an electrical performance testing device. BACKGROUND

[0002] In the manufacturing process of semiconductor products and photovoltaic products, a heat treatment process is one of the indispensable manufacturing processes. At present, the industry usually uses high-temperature equipment to perform the heat treatment process on the products, wherein a hot field assembly of the high-temperature equipment is used to heat the inside of the equipment and the products.

[0003] Inorganic non-metallic material powder has good insulation at room temperature, which can meet the manufacturing application requirements of the hot field assembly. However, as the temperature of the inorganic non-metallic material powder increases, the electrical performance of the inorganic non-metallic material powder may change. Therefore, testing the electrical performance of the inorganic non-metallic material powder and exploring the influence of temperature on the electrical performance of the inorganic non-metallic material powder is of great significance for the selection of manufacturing materials for the hot field assembly of the high-temperature equipment. UTILITY MODEL CONTENT

[0004] Therefore, the present disclosure provides an electrical performance testing device which can test the electrical performance of inorganic non-metallic material powder.

[0005] The present disclosure provides an electrical performance testing device, comprising: a heating assembly having at least one first containing cavity and at least one first opening in communication with the first containing cavity; at least one sample loading assembly capable of entering and exiting the first containing cavity through the first opening, wherein the sample loading assembly has a first conductive part, a second conductive part, and a connecting part connecting the first conductive part and the second conductive part, the first conductive part, the second conductive part, and the connecting part form a closed second containing cavity, and the second containing cavity is configured to contain an inorganic non-metallic material powder sample, wherein the inorganic non-metallic material powder sample is in contact with the first conductive part and the second conductive part, wherein the material of the connecting part is an insulating material, and the first conductive part and the second conductive part are respectively electrically connected to the positive and negative poles of a power supply; and an electrical performance data acquisition assembly electrically connected to the first conductive part and the second conductive part.

[0006] In some embodiments, the electrical performance testing device further comprises: a first thermocouple, the first thermocouple extends into the first containing cavity and is close to or in contact with the sample loading assembly, and the first thermocouple is configured to detect the temperature of the inorganic non-metallic material powder sample; and a temperature data acquisition assembly electrically connected to the first thermocouple.

[0007] In some embodiments, the sample loading assembly comprises: a ring-shaped sidewall forming the connecting portion, both ends of the ring-shaped sidewall having a second opening; two end cap assemblies forming the first and second conductive portions respectively, and detachably connected with both ends of the ring-shaped sidewall respectively, the end cap assemblies being configured to open or close the second openings; wherein, in the case that both of the end cap assemblies close the two second openings respectively, a closed second containing cavity is formed between the ring-shaped sidewall and the two end cap assemblies, the end cap assemblies are in contact with the inorganic non-metal material powder sample, and are electrically connected with the power supply and the electrical performance data acquisition assembly respectively, and the first thermocouple is close to the end cap assemblies.

[0008] In some embodiments, the inner side of the ring-shaped sidewall has a first threaded portion, the first threaded portion being arranged around the ring-shaped sidewall along the circumferential direction of the ring-shaped sidewall; the end cap assembly comprises: a first connecting member having a second threaded portion, the second threaded portion being screwed with the first threaded portion, wherein, in the process of rotating the first connecting member, the first connecting member can move along the extension direction of the ring-shaped sidewall relative to the ring-shaped sidewall; a second connecting member connected with the first connecting member and electrically connected with the power supply and the electrical performance data acquisition assembly respectively.

[0009] In some embodiments, the second connecting member has a third threaded portion, and the electrical performance testing device further comprises: a third connecting member having a fourth threaded portion, the fourth threaded portion being screwed with the third threaded portion, wherein the material of the third connecting member is conductive material; a wire, a first end of the wire being wound around the fourth threaded portion, and a second end of the wire being electrically connected with the power supply and the electrical performance data acquisition assembly respectively.

[0010] In some embodiments, the heating assembly comprises: at least one furnace tube, the furnace tube having the first containing cavity and the first opening; a furnace shell having a third containing cavity configured to contain the furnace tube; a heating member arranged in the third containing cavity and configured to heat the furnace tube; and at least one flange connected with the furnace tube and configured to open or close the first opening respectively.

[0011] In some embodiments, the electrical performance testing device further comprises: at least two heat preservation members arranged in the first containing cavity and located on both sides of the sample loading assembly; wherein the heat preservation members have a through hole, and the second end of the wire can pass through the through hole.

[0012] In some embodiments, the number of furnace tubes is multiple, and the electrical performance testing device further comprises a furnace lining arranged in the third accommodating cavity and having multiple fourth accommodating cavities, and the multiple furnace tubes are respectively arranged in the multiple fourth accommodating cavities; and the heating member is arranged above the furnace lining and connected with the furnace lining.

[0013] In some embodiments, the flange has an air inlet and outlet which can be communicated with a vacuum device to enable the first accommodating cavity to be in a vacuum state.

[0014] In some embodiments, the electrical performance testing device further comprises an electrode assembly, a first end of the electrode assembly extending into the first accommodating cavity and electrically connected with the second end of the lead wire, and a second end of the electrode assembly extending out of the first accommodating cavity and electrically connected with the power supply and the electrical performance data acquisition assembly respectively, wherein the electrode assembly is sealingly connected with the flange.

[0015] The electrical performance testing device provided by the embodiment of the present disclosure uses the sample loading assembly to hold the inorganic non-metal material powder sample, the sample loading assembly has a first conductive part and a second conductive part, the first conductive part and the second conductive part are electrically connected with the positive electrode and the negative electrode of the power supply respectively, the electrical performance data acquisition assembly is electrically connected with the first conductive part and the second conductive part respectively, and in addition, the heating assembly is used to heat the sample loading assembly and the inorganic non-metal material powder sample, so that the electrical performance of the inorganic non-metal material powder sample at different temperatures is tested. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 shows an application scenario schematic diagram of an electrical performance testing device provided by an embodiment of the present disclosure.

[0017] Figure 2 Fig. 2 shows a cross-sectional view of a sample loading assembly and an inorganic non-metal material powder sample provided by an embodiment of the present disclosure.

[0018] Figure 3 Fig. 3 shows an application scenario schematic diagram of an electrical performance testing device provided by another embodiment of the present disclosure.

[0019] Figure 4 Fig. 4 shows a structure schematic diagram of a furnace shell, a furnace tube and a heating member provided by an embodiment of the present disclosure. Figure 3 Fig. 5 shows a partial enlarged view of the electrical performance testing device in the A area.

[0020] Figure 5 Fig. 6 shows a cross-sectional view of a furnace tube and a structure on the furnace tube provided by an embodiment of the present disclosure.

[0021] Figure 6 Fig. 7 shows a cross-sectional view of a furnace tube and a structure on the furnace tube provided by an embodiment of the present disclosure.

[0022] Figure 7A structural schematic diagram of a furnace lining, a heating element, a second thermocouple, a furnace tube and a structure on the furnace tube is shown.

[0023] Figure 8 A structural schematic diagram of a furnace lining, a heating element, a second thermocouple, a furnace tube and a structure on the furnace tube is shown. Figure 7 A sectional view of the structure is shown.

[0024] Reference signs:

[0025] 10, electrical performance testing device; 100, heating assembly; 1001, first accommodating cavity; 1002, first opening; 110, furnace tube; 120, furnace shell; 1201, third accommodating cavity; 130, heating element; 140, flange; 1401, gas inlet and outlet; 200, sample loading assembly; 201, first conductive part; 202, second conductive part; 203, connecting part; 2001, second accommodating cavity; 210, annular side wall; 2110, first threaded part; 2101, second opening; 220, end cover assembly; 2210, first connecting piece; 2211, second threaded part; 2220, second connecting piece; 2221, third threaded part; 300, power supply; 400, electrical performance data acquisition assembly; 500, first thermocouple; 600, temperature data acquisition assembly; 700, third connecting piece; 701, fourth threaded part; 800, wire; 801, first end of the wire; 802, second end of the wire; 900, heat preservation element; 901, through hole; 1000, furnace lining; 1011, fourth accommodating cavity; 1100, electrode assembly; 1200, second thermocouple; 2, inorganic non-metallic material powder sample. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present disclosure.

[0027] Figure 1 An application scenario schematic diagram of the electrical performance testing device provided by an embodiment of the present disclosure is shown. As shown in Figure 1As shown, the electrical performance testing device 10 comprises a heating assembly 100, at least one sample loading assembly 200, and an electrical performance data acquisition assembly 400. The heating assembly 100 has at least one first accommodating cavity 1001 and at least one first opening 1002 communicating with the first accommodating cavity 1001. The sample loading assembly 200 can be put into or taken out of the first accommodating cavity 1001 through the first opening 1002. The sample loading assembly 200 has a first conductive part 201, a second conductive part 202, and a connecting part 203 connecting the first conductive part 201 and the second conductive part 202, and the first conductive part 201, the second conductive part 202, and the connecting part 203 enclose a sealed second accommodating cavity 2001 configured to accommodate the inorganic non-metallic material powder sample 2. The inorganic non-metallic material powder sample 2 is in contact with the first conductive part 201 and the second conductive part 202. The material of the connecting part 203 is an insulating material. The first conductive part 201 and the second conductive part 202 are respectively electrically connected with the positive electrode and the negative electrode of a power supply 300. The electrical performance data acquisition assembly 400 is respectively electrically connected with the first conductive part 201 and the second conductive part 202.

[0028] The electrical performance testing device 10 uses the sample loading assembly 200 to hold the inorganic non-metallic material powder sample 2, the sample loading assembly 200 has the first conductive part 201 and the second conductive part 202, the first conductive part 201 and the second conductive part 202 are respectively electrically connected with the positive electrode and the negative electrode of the power supply 300, the electrical performance data acquisition assembly 400 is respectively electrically connected with the first conductive part 201 and the second conductive part 202, in addition, the heating assembly 100 is used to heat the sample loading assembly 200 and the inorganic non-metallic material powder sample 2, thereby realizing the testing of the electrical performance of the inorganic non-metallic material powder sample 2 at different temperatures.

[0029] Exemplarily, the heating assembly 100 is a tubular structure or other types of structures having the first accommodating cavity 1001 and the first opening 1002.

[0030] Exemplarily, the sample loading assembly 200 can be placed in the first accommodating cavity 1001 or connected with the heating assembly 100.

[0031] Exemplarily, the power supply 300 can be arranged outside or inside the heating assembly 100 and connected or not connected with the heating assembly 100. The power supply 300 can be a constituent assembly of the electrical performance testing device 10 or an external power supply not included in the electrical performance testing device 10. Exemplarily, the electrical performance data acquisition assembly 400 is arranged outside the heating assembly 100 and connected or not connected with the heating assembly 100.

[0032] Exemplarily, the heating assembly 100 can heat the sample loading assembly 200 and the inorganic non-metallic material powder sample 2 to a high-temperature state. Exemplarily, the temperature range of the high temperature is 800℃ or above 1000℃.

[0033] Exemplarily, the material of the connecting portion 203 can be ceramic, plastic, or the like with high-temperature resistance. Exemplarily, the material of the first conductive portion 201 and the second conductive portion 202 is conductive material, which can be metal, graphite, or the like.

[0034] Exemplarily, the electrical property of the inorganic non-metallic material powder sample 2 includes insulation resistance, voltage resistance, breakdown voltage, and the like.

[0035] In some embodiments, as shown in FIG. 1 and FIG. 2, the electrical property testing device 10 further comprises a first thermocouple 500 and a temperature data acquisition assembly 600. The first thermocouple 500 extends into the first accommodating cavity 1001 and is close to or in contact with the sample assembly 200. The first thermocouple 500 is configured to detect the temperature of the inorganic non-metallic material powder sample 2. The temperature data acquisition assembly 600 is electrically connected with the first thermocouple 500. Figure 1 The temperature of the inorganic non-metallic material powder sample 2 is detected by the first thermocouple 500, so as to realize that the electrical property testing device 10 tests the electrical property of the inorganic non-metallic material powder sample 2 at different temperatures. The electrical property data acquisition assembly 400 can acquire the electrical property parameters of the inorganic non-metallic material powder sample 2 at different temperatures, thereby improving the testing accuracy of the electrical property testing device 10 on the electrical property of the inorganic non-metallic material powder sample 2.

[0036] Exemplarily, the temperature data acquisition assembly 600 is arranged outside the heating assembly 100 and is connected with or not connected with the heating assembly 100. Exemplarily, the first thermocouple 500 is detachably connected with the heating assembly 100.

[0037] Exemplarily, the type of the first thermocouple 500 can be B type, S type, J type, N type, K type, or the like.

[0038] In some embodiments, as shown in FIG. 1 and FIG. 2, the electrical property testing device 10 further comprises a first thermocouple 500 and a temperature data acquisition assembly 600. The first thermocouple 500 extends into the first accommodating cavity 1001 and is close to or in contact with the sample assembly 200. The first thermocouple 500 is configured to detect the temperature of the inorganic non-metallic material powder sample 2. The temperature data acquisition assembly 600 is electrically connected with the first thermocouple 500.

[0039] Figure 2 ​As shown, the sample loading assembly 200 includes an annular sidewall 210 and two end cap assemblies 220. The annular sidewall 210 forms the connecting portion 203, and both ends of the annular sidewall 210 have a second opening 2101. The two end cap assemblies 220 form the first conductive portion 201 and the second conductive portion 202, respectively, and are detachably connected to both ends of the annular sidewall 210, respectively. The end cap assemblies 220 are configured to open or close the second openings 2101. In the case where the two end cap assemblies 220 close the two second openings 2101, respectively, a sealed second containing cavity 2001 is formed between the annular sidewall 210 and the two end cap assemblies 220. The end cap assemblies 220 are in contact with the inorganic non-metal material powder sample 2, and are electrically connected to the power supply 300 and the electrical performance data acquisition assembly 400, respectively. The first thermocouple 500 is close to the end cap assemblies 220.

[0040] The sample loading assembly 200 has a simple structure and is easy to disassemble and assemble.

[0041] Exemplarily, the shape of the cross section of the annular sidewall 210 can be a rectangular ring, a circular ring, or other polygonal rings, etc. Exemplarily, the shape of the cross section of the end cap assembly 220 can be a rectangle, a circle, or other polygons, etc.

[0042] In some embodiments, as shown in Figure 1 and Figure 2 The inner side of the annular sidewall 210 has a first threaded portion 2110, which is arranged around the annular sidewall 210 in the circumferential direction of the annular sidewall 210. The end cap assembly 220 includes a first connecting member 2210 and a second connecting member 2220. The first connecting member 2210 has a second threaded portion 2211 that is screwed with the first threaded portion 2110. During the rotation of the first connecting member 2210, the first connecting member 2210 can move along the extension direction of the annular sidewall 210 relative to the annular sidewall 210. The second connecting member 2220 is connected to the first connecting member 2210 and is electrically connected to the power supply 300 and the electrical performance data acquisition assembly 400, respectively.

[0043] The connection mode of the above-mentioned end cap assembly 220 and the annular sidewall 210 is simple and reliable, and is more convenient for disassembling and assembling the sample loading assembly 200.

[0044] Exemplarily, the first connecting member 2210 and the second connecting member 2220 can be an integral structure or a split structure. Figure 2 The first connecting member 2210 and the second connecting member 2220 shown are an integral structure.

[0045] In some embodiments, as shown in Figures 2 to 4As shown, the second connecting member 2220 has a third threaded portion 2221, and the electrical performance testing device 10 further comprises a third connecting member 700 and a wire 800, the third connecting member 700 has a fourth threaded portion 701, and the fourth threaded portion 701 is screwed with the third threaded portion 2221. The material of the third connecting member 700 is conductive material. The first end 801 of the wire is wound on the fourth threaded portion 701, and the second end 802 of the wire is electrically connected with the power supply 300 and the electrical performance data acquisition assembly 400 respectively.

[0046] The wire 800 is used to electrically connect the end cover assembly 220 with the power supply 300 and the electrical performance data acquisition assembly 400, and the connection mode is simple and reliable. In addition, the third connecting member 700 is used to detachably connect the wire 800 with the end cover assembly 220, and the connection mode is simple and reliable, and convenient for disassembly and assembly.

[0047] As shown in Figures 2 to 4 The electrical performance testing device 10 comprises two third connecting members 700 and two wires 800, the two third connecting members 700 are connected with the second connecting members 2220 of the two end cover assemblies 220 respectively, the first ends 801 of the two wires are connected with the fourth threaded portions 701 of the two third connecting members 700 respectively, the second ends 802 of the two wires are electrically connected with the positive and negative poles of the power supply 300 respectively, and the electrical performance data acquisition assembly 400 is electrically connected with the second ends 802 of the two wires respectively.

[0048] Exemplarily, the third connecting member 700 can be a bolt, a screw or other structure with the fourth threaded portion 701. Exemplarily, the material of the third connecting member 700 can be metal, graphite or the like.

[0049] Exemplarily, the wire 800 has high-temperature resistance. Exemplarily, the wire 800 can resist temperature of 800℃ or above 1000℃.

[0050] Figure 3 and Figure 4 The third connecting member 700 is a bolt. Exemplarily, the electrical performance testing device 10 further comprises a nut, the nut is screwed with the fourth threaded portion 701, the first end 801 of the wire is wound on the portion of the fourth threaded portion 701 between the nut and the nut of the bolt, and the nut is locked to limit the first end 801 of the wire, so as to avoid the first end 801 of the wire from falling off.

[0051] In some embodiments, as Figure 3 and Figure 5As shown, the heating assembly 100 comprises at least one furnace tube 110, a furnace shell 120, a heating element 130, and at least one flange 140. The furnace tube 110 has a first accommodating cavity 1001 and a first opening 1002. The furnace shell 120 has a third accommodating cavity 1201 configured to accommodate the furnace tube 110. The heating element 130 is arranged in the third accommodating cavity 1201 and is configured to heat the furnace tube 110. The flange 140 is connected with the furnace tube 110 and is configured to open or close the first opening 1002.

[0052] The sample loading assembly 200 is accommodated by the furnace tube 110, the first opening 1002 of the furnace tube 110 is closed by the flange 140, and the furnace tube 110 is accommodated by the furnace shell 120, so as to realize heat preservation of the furnace tube 110 and improve the heat preservation effect of the electrical performance testing device 10.

[0053] As shown in the example, Figure 3 Both ends of the furnace tube 110 have the first opening 1002, and the two flanges 140 are respectively connected with the two ends of the furnace tube 110 to respectively open or close the two first openings 1002.

[0054] As shown in the example, the end of the first thermocouple 500 electrically connected with the temperature data acquisition assembly 600 passes through the flange 140 and extends out of the first accommodating cavity 1001.

[0055] As shown in the example, Figure 5 A plurality of furnace tubes 110 are arranged in the furnace shell 120, so as to simultaneously test the inorganic non-metal material powder samples 2 in the plurality of furnace tubes 110 and improve the testing efficiency of the electrical performance testing device 10.

[0056] As shown in the example, the heating element 130 is detachably or non-detachably connected with the furnace shell 120. As shown in the example, the heating element 130 is arranged at the top or the bottom of the third accommodating cavity 1201 of the furnace shell 120 or at the top and the bottom, so as to improve the heating uniformity of the heating element 130 on the furnace tube 110. As shown in the example, the heating element 130 is arranged between two adjacent furnace tubes 110, so as to further improve the heating uniformity of the heating element 130 on the furnace tube 110. As shown in the example, the heating element 130 is arranged on the furnace tube 110 and surrounds the furnace tube 110 in the circumferential direction of the furnace tube 110 and extends in the extension direction of the furnace tube 110, so as to further improve the heating uniformity of the heating element 130 on the furnace tube 110. As shown in the example, the heating element 130 can be a heating rod, a heating tube, a heating wire, or other structures with heating function.

[0057] Exemplarily, the material of the furnace tube 110 is an insulating material, which can be ceramic, quartz, or the like with high-temperature resistance.

[0058] In some embodiments, the electrical performance testing device 10 further comprises at least two heat preservation members 900, which are arranged in the first accommodating cavity 1001 and located on both sides of the sample loading assembly 200. The heat preservation member 900 has a through hole 901, and the second end 802 of the lead wire can pass through the through hole 901.

[0059] By arranging the heat preservation member 900 in the first accommodating cavity 1001, the rapid loss of heat in the first accommodating cavity 1001 is avoided, and the heat preservation effect of the electrical performance testing device 10 is further improved.

[0060] Exemplarily, as shown in Figure 6 , one heat preservation member 900 is arranged on each side of the sample loading assembly 200.

[0061] Exemplarily, the material of the heat preservation member 900 is an insulating material, which can be ceramic, plastic, or the like with high-temperature resistance.

[0062] In some embodiments, as shown in Figure 3 , Figure 5 , Figure 7 and Figure 8 , the number of furnace tubes 110 is multiple, and the electrical performance testing device 10 further comprises a furnace lining 1000, which is arranged in the third accommodating cavity 1201 and has multiple fourth accommodating cavities 1011, and the multiple furnace tubes 110 are located in the multiple fourth accommodating cavities 1011, respectively. The heating member 130 is located above the furnace lining 1000 and connected with the furnace lining 1000.

[0063] By using the furnace lining 1000 to accommodate the furnace tubes 110, the furnace tubes 110 are heat preserved, and the heat preservation effect of the electrical performance testing device 10 is further improved.

[0064] Exemplarily, the material of the furnace lining 1000 can be silica brick, high-alumina brick, or the like.

[0065] Exemplarily, as shown in Figure 8 , the multiple heating members 130 are arranged above the furnace lining 1000.

[0066] In some embodiments, as shown in Figure 6 , the flange 140 has an air inlet and outlet 1401, which can be communicated with a vacuum device, so that the first accommodating cavity 1001 can be in a vacuum state.

[0067] The vacuum device is used to extract the gas in the first accommodating cavity 1001, so that the first accommodating cavity 1001 can be in a vacuum state, so as to facilitate the electric performance testing device 10 to test the electric performance of the inorganic non-metal material powder sample 2 in a vacuum environment.

[0068] In some embodiments, as shown in Figure 3 The electric performance testing device 10 further includes an electrode assembly 1100, a first end of the electrode assembly 1100 extends into the first accommodating cavity 1001 and is electrically connected with the second end 802 of the lead wire, a second end of the electrode assembly 1100 extends out of the first accommodating cavity 1001 and is electrically connected with the power supply 300 and the electric performance data acquisition assembly 400 respectively, and the electrode assembly 1100 is sealingly connected with the flange 140.

[0069] The electrode assembly 1100 is used to electrically connect the lead wire 800 with the power supply 300 and the electric performance data acquisition assembly 400, and the connection mode is simple and reliable.

[0070] In addition, if the lead wire 800 is directly connected with the power supply 300 and the electric performance data acquisition assembly 400 through the flange 140, in order to sealingly connect the lead wire 800 with the flange 140, the gap between the lead wire 800 and the flange 140 is usually sealed by gluing. However, under high temperature conditions, the glue between the lead wire 800 and the flange 140 is easy to melt, which causes the first accommodating cavity 1001 to be unable to be in a sealed state all the time. The static sealing mode of sealingly connecting the electrode assembly 1100 with the flange 140 can be applied to high temperature conditions and can make the first accommodating cavity 1001 be in a sealed state all the time.

[0071] Exemplarily, the number of the electrode assembly 1100 is two, the two electrode assemblies 1100 are electrically connected with two lead wires 800 respectively and are electrically connected with the positive and negative electrodes of the power supply 300 respectively, and the electric performance data acquisition assembly 400 is electrically connected with the two electrode assemblies 1100 respectively. Exemplarily, the electrode assembly 1100 is sealingly connected with the flange 140 through a sealing member.

[0072] Exemplarily, as shown in Figure 3 and Figure 8 The electric performance testing device 10 further includes a second thermocouple 1200, the second thermocouple 1200 is arranged in the furnace lining 1000 and is configured to detect the temperature of the furnace lining 1000, so as to facilitate the electric performance testing device 10 to test the electric performance of the inorganic non-metal material powder sample 2 in a certain temperature range.

[0073] In the embodiments of the present disclosure, if not specifically limited, the form of connection can be detachable connection through bolt and nut, screw, buckle, magnetic attraction and the like. In some connections, if there is no special requirement for the form of detachable connection, it can be non-detachable connection through welding, bonding and the like.

[0074] In the description, "one embodiment", "an embodiment", or the like means that the described embodiment can include a particular feature, structure, or characteristic, but every embodiment can not necessarily include the particular feature, structure, or characteristic. In addition, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to effect such feature, structure, or characteristic in connection with an alternative embodiment whether or not explicitly described.

[0075] It should be understood that "on", "above", and "upper" in the present disclosure should be interpreted in the broadest possible way, such that "on" means not only "directly on", but also "on" with intervening features or layers therebetween, and "above" or "upper" includes not only the meaning of "above" or "upper", but also the meaning of "above" or "upper" without intervening features or layers therebetween (i.e., directly on).

[0076] In addition, spatially relative terms, such as "under", "below", "lower", "over", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0077] It should be noted that, in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such process, method, article, or apparatus. Without more limitations, the element defined by the phrase "including a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0078] The above description is merely the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. Any modification, equivalent replacement, and the like made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An electrical performance testing apparatus, characterized by, The electric property testing device comprises: a heating assembly having at least one first accommodating cavity and at least one first opening communicating with the first accommodating cavity; at least one sample loading assembly capable of accessing the first accommodating cavity through the first opening, wherein the sample loading assembly has a first conductive part, a second conductive part, and a connecting part connecting the first conductive part and the second conductive part, the first conductive part, the second conductive part, and the connecting part enclose a sealed second accommodating cavity configured to accommodate an inorganic non-metal material powder sample, wherein the inorganic non-metal material powder sample is in contact with the first conductive part and the second conductive part, and the material of the connecting part is an insulating material, the first conductive part and the second conductive part are respectively electrically connected to the positive electrode and the negative electrode of a power supply; an electric property data acquisition assembly electrically connected to the first conductive part and the second conductive part respectively.

2. The electrical performance test apparatus of claim 1, wherein, Further comprising: a first thermocouple extending into the first accommodating cavity and close to or in contact with the sample loading assembly, the first thermocouple being configured to detect the temperature of the inorganic non-metal material powder sample; a temperature data acquisition assembly electrically connected to the first thermocouple.

3. The electrical performance test apparatus of claim 2, wherein, The sample loading assembly comprises: an annular side wall forming the connecting part, both ends of the annular side wall having a second opening; two end cover assemblies respectively forming the first conductive part and the second conductive part and respectively detachably connected to both ends of the annular side wall, the end cover assemblies being configured to open or close the second openings; wherein, in the case that both of the end cover assemblies respectively close both of the second openings, the annular side wall and the two end cover assemblies form the sealed second accommodating cavity, the end cover assemblies are in contact with the inorganic non-metal material powder sample and are respectively electrically connected to the power supply and the electric property data acquisition assembly, and the first thermocouple is close to the end cover assemblies.

4. The electric property testing device according to claim 3, wherein: an inner side of the annular side wall has a first threaded part arranged around the annular side wall along a circumferential direction of the annular side wall; the end cover assembly comprises: a first connecting member having a second threaded part screwing with the first threaded part, wherein, in the process of rotating the first connecting member, the first connecting member is capable of moving along the extension direction of the annular side wall relative to the annular side wall; a second connecting member connected to the first connecting member and respectively electrically connected to the power supply and the electric property data acquisition assembly.

5. The electrical performance test apparatus of claim 4, wherein, The second connecting member has a third threaded part, and the electric property testing device further comprises: a third connecting member having a fourth threaded part screwing with the third threaded part, wherein the material of the third connecting member is a conductive material; a wire, a first end of the wire being wound around the fourth threaded part, and a second end of the wire being respectively electrically connected to the power supply and the electric property data acquisition assembly.

6. The electrical performance test apparatus of claim 5, wherein, The heating assembly comprises: at least one furnace tube having the first accommodating cavity and the first opening; The furnace shell has a third accommodating cavity configured to accommodate the furnace tube; The heating member is arranged in the third accommodating cavity and configured to heat the furnace tube; The at least one flange is connected with the furnace tube and configured to open or close the first opening.

7. The electrical performance test apparatus of claim 6, wherein, Further comprising: The at least two heat preservation members are arranged in the first accommodating cavity and located on both sides of the sample loading assembly; The heat preservation member has a through hole, and the second end of the lead wire can pass through the through hole.

8. The electrical performance test apparatus of claim 7, wherein, The number of the furnace tube is multiple, and the electrical performance testing device further comprises: The furnace lining is arranged in the third accommodating cavity and has multiple fourth accommodating cavities, and the multiple furnace tubes are respectively located in the multiple fourth accommodating cavities; The heating member is located above the furnace lining and connected with the furnace lining.

9. An electrical performance test apparatus as claimed in any one of claims 6 to 8, wherein, The flange has an air inlet and outlet, which can be communicated with a vacuum device to make the first accommodating cavity in a vacuum state.

10. The electrical performance test apparatus of claim 9, wherein, Further comprising: The electrode assembly has a first end extending into the first accommodating cavity and electrically connected with the second end of the lead wire, and a second end extending out of the first accommodating cavity and electrically connected with the power supply and the electrical performance data acquisition assembly respectively, wherein the electrode assembly is sealingly connected with the flange.

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