Vacuum degree detection device, monitoring system and vacuum arc-extinguishing chamber

Abstract

The application discloses a vacuum degree detection device of a vacuum arc-extinguishing chamber, a monitoring system and the vacuum arc-extinguishing chamber. In the vacuum degree detection device of the vacuum arc-extinguishing chamber, a ceramic insulation shell is sealingly fixed on an end face cover plate of the vacuum arc-extinguishing chamber, the ceramic insulation shell is a circular ring structure coaxial with a conductive rod on the end face cover plate, and a through hole in communication with the vacuum arc-extinguishing chamber is arranged in a sealing area formed by the end face cover plate and the ceramic insulation shell. A thermoelectric vacuum sensor is arranged inside the ceramic insulation shell to detect the vacuum degree of the vacuum arc-extinguishing chamber, a cold end is fixed on the end face cover plate, an electrode is supported on the cold end, a thermoelectric arm is supported on the electrode, a hot end is laminated on the thermoelectric arm, a thermal resistance block is laminated on the hot end, and a heating device is laminated on the thermal resistance block.

Description

Technical Field

[0001] This invention belongs to the field of online vacuum degree detection technology for vacuum interrupters, and specifically relates to a vacuum degree detection device, monitoring system, and vacuum interrupter. Background Technology

[0002] Vacuum circuit breakers use vacuum as the arc-extinguishing and insulating medium, offering advantages such as short arc time, low arc energy, minimal contact wear, a high permissible number of breaking cycles, suitability for frequent operation, and long service life. Vacuum circuit breakers are continuously evolving towards miniaturization and higher voltage levels, and their applications in the power sector are becoming increasingly widespread. The high vacuum environment within the arc-extinguishing chamber of a vacuum circuit breaker is a prerequisite for ensuring its excellent performance. Therefore, real-time monitoring of the vacuum level within the arc-extinguishing chamber during operation has become a crucial research area in the field of vacuum circuit breakers.

[0003] The vacuum interrupter manufacturing process employs a single-stage sealing and exhaust process, where the vacuum interrupter is first brazed into several components, and then the exhaust, baking, and brazing sealing processes are completed in a vacuum furnace. During this process, the baking temperature of the vacuum interrupter can reach as high as 800-900℃. Traditional vacuum degree detection methods suffer from limitations in the high-temperature resistance of the detection devices, making it impossible to implant them during the vacuum interrupter's manufacturing process. Furthermore, the lifespan of the detection device is difficult to guarantee in high-temperature environments. Offline detection devices require the vacuum interrupter to be taken out of service before vacuum degree testing can be performed, making real-time monitoring of issues such as slow leaks impossible.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of the present invention, and therefore may contain information that does not constitute prior art known to those skilled in the art in this country. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention proposes a vacuum degree detection device, monitoring system, and vacuum interrupter. A thermoelectric vacuum sensor is used to measure the vacuum degree of the vacuum interrupter. All parts of the thermoelectric vacuum sensor are made of high-temperature resistant materials, solving the problems of traditional detection devices being unable to withstand high temperatures and experiencing reduced detection accuracy at high temperatures. This allows for implantation during the vacuum interrupter's manufacturing process. The main body of the vacuum degree detection device adopts a circular structure, occupying little space and having a wide range of applications, meeting the vacuum degree detection requirements of medium and high voltage vacuum interrupters at voltage levels of 12kV and above. This device has the advantages of online detection, simple implementation, high temperature resistance, and long lifespan, and has promising prospects for industrial applications.

[0006] The objective of this invention is achieved through the following technical solution: a vacuum degree detection device for a vacuum interrupter includes:

[0007] A ceramic insulating shell is sealed and fixed to the end face cover plate of the vacuum interrupter. The ceramic insulating shell is a circular ring structure coaxial with the conductive rod on the end face cover plate. The sealing area formed by the end face cover plate and the ceramic insulating shell has a through hole communicating with the vacuum interrupter.

[0008] A thermoelectric vacuum sensor, disposed inside the ceramic insulating housing to detect the vacuum level of the vacuum interrupter, the thermoelectric vacuum sensor comprising...

[0009] The cold end is fixed to the end face cover plate and heat is transferred to the conductive rod through the end face cover plate to keep the temperature of the cold end of the sensor relatively stable.

[0010] An electrode, which is supported on the cold end;

[0011] A thermoelectric arm, which is supported on the electrode;

[0012] The hot end is stacked on the thermoelectric arm;

[0013] A thermal resistance block, which is stacked on the hot end;

[0014] A heating device, which is stacked on the thermal resistance block.

[0015] The vacuum degree detection device for the vacuum interrupter chamber also includes,

[0016] A conductive sheet, which is electrically connected to the thermoelectric vacuum sensor;

[0017] A wire, which passes through and is soldered to a ceramic insulating shell, is electrically connected to the conductive sheet.

[0018] The wire is a cylindrical wire that connects to the thermoelectric vacuum sensor. It is led out from the ceramic insulating shell and the end cover plate through a ceramic insert, which is welded to the end cover plate.

[0019] In the vacuum interrupter vacuum degree detection device, the thermoelectric vacuum sensor is a ring-shaped structure installed inside a ceramic insulating shell, and it is coaxial with the conductive rod on the end cover plate.

[0020] In the vacuum degree detection device for the vacuum interrupter, the ceramic insulating shell is sealed and fixed to the outer side of the end cover plate away from the vacuum interrupter, and the through hole is provided on the end cover plate.

[0021] In the vacuum degree detection device for the vacuum interrupter, the ceramic insulating shell is sealed and fixed to the inner side of the end cover plate near the vacuum interrupter, and the through hole is provided on the ceramic insulating shell.

[0022] In the vacuum degree detection device for the vacuum interrupter, the end cover plate is either the static cover plate or the dynamic cover plate of the vacuum interrupter.

[0023] A vacuum interrupter monitoring system includes,

[0024] The vacuum degree detection device for the vacuum interrupter chamber;

[0025] A temperature sensor is disposed between the thermal resistance block and the heating device to generate temperature data;

[0026] The sensor receiving module receives the detection signal and temperature data from the vacuum degree detection device.

[0027] A data processing module is connected to the sensor receiving module to generate vacuum data based on the detection signal and adjust the heating temperature of the heating device based on the temperature data;

[0028] A data storage module, connected to the data processing module, is used to receive and store the vacuum level data.

[0029] The data monitoring module is connected to the data processing module. When the vacuum level data exceeds a predetermined threshold, the data monitoring module will issue an alarm.

[0030] In the aforementioned vacuum interrupter monitoring system, the data monitoring module includes a buzzer or an LED light.

[0031] A vacuum interrupter includes,

[0032] The ceramic outer shell has a hollow cylindrical structure.

[0033] A static cover plate, which is sealed and brazed to one end of the ceramic shell;

[0034] A static conductive rod is inserted through the center of the static cover plate;

[0035] A movable cover plate, which is sealed and brazed to the other end of the ceramic housing;

[0036] A movable conductive rod is inserted through the center of the movable cover plate;

[0037] The vacuum degree detection device of the vacuum interrupter is located on the upper or lower surface of the moving or stationary cover plate and is arranged coaxially with the conductive rod.

[0038] A shielding cover is disposed inside the ceramic outer shell.

[0039] Compared with the prior art, the present invention has the following advantages: The vacuum detection device of the present invention is installed on the end cover plate coaxial with the conductive rod, which occupies little space, meets the requirements of miniaturization of the detection device, has a wide range of applications, and does not affect the insulation performance and working performance of the vacuum interrupter. It is suitable for the vacuum degree detection requirements of medium and high voltage vacuum interrupters with voltage levels of 12kV and above; The thermoelectric vacuum sensor can withstand the high temperature during the baking process of the vacuum interrupter, so that the detection device can be embedded in the vacuum interrupter at the factory, without the need for later installation. Attached Figure Description

[0040] Various other advantages and benefits of the present invention will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0041] In the attached diagram:

[0042] Figure 1 This is a schematic diagram of the structure of a vacuum interrupter according to an embodiment of the present invention;

[0043] Figure 2 This is a partially enlarged schematic diagram of a vacuum degree detection device for a vacuum interrupter according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the vacuum degree detection device for a vacuum interrupter according to an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of the thermoelectric vacuum sensor structure of a vacuum degree detection device for a vacuum interrupter according to an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram of the structure of a vacuum interrupter according to an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the installation of a vacuum degree detection device for a vacuum interrupter according to an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram of the structure of a monitoring system according to an embodiment of the present invention.

[0049] The present invention will be further explained below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0050] The following will refer to the attached diagram. Figures 1 to 7 Specific embodiments of the invention will be described in more detail below. While specific embodiments of the invention are shown in the accompanying drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0051] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions are preferred embodiments for carrying out the invention; however, these descriptions are for the purpose of understanding the general principles of the specification and are not intended to limit the scope of the invention. The scope of protection of this invention is determined by the appended claims.

[0052] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings do not constitute a limitation on the embodiments of the present invention.

[0053] To better understand, such as Figures 1 to 7 As shown, the vacuum degree detection device for the vacuum interrupter includes,

[0054] A ceramic insulating shell 11 is sealed and fixed to the end face cover plate of the vacuum interrupter. The ceramic insulating shell 11 is a circular ring structure coaxial with the conductive rod on the end face cover plate. The sealing area formed by the end face cover plate and the ceramic insulating shell 11 has a through hole communicating with the vacuum interrupter.

[0055] A thermoelectric vacuum sensor 13 is disposed inside the ceramic insulating housing 11 to detect the vacuum level of the vacuum interrupter. The thermoelectric vacuum sensor 13 includes...

[0056] The cold end 131 is fixed to the end face cover plate and transfers heat to the conductive rod through the end face cover plate to keep the temperature of the cold end of the sensor relatively stable.

[0057] Electrode 132, which is supported on the cold end 131;

[0058] Thermoelectric arm 133, which is supported on the electrode 132;

[0059] Hot end 134, which is stacked on the thermoelectric arm 133;

[0060] Thermal resistance block 135 is stacked on the hot end 134;

[0061] Heating device 136 is stacked on the thermal resistance block 135.

[0062] In a preferred embodiment of the vacuum degree detection device for the vacuum interrupter, a conductive sheet is further included, which is electrically connected to the thermoelectric vacuum sensor 13.

[0063] A wire 12 passes through and is welded to the ceramic insulating shell 11, and the wire 12 is electrically connected to the conductive sheet.

[0064] In a preferred embodiment of the vacuum degree detection device for the vacuum interrupter, the conductor 12 is a cylindrical conductor 12 disposed on the upper surface of the ceramic insulating shell.

[0065] In a preferred embodiment of the vacuum degree detection device for the vacuum interrupter, the thermoelectric vacuum sensor 13 is a ring-shaped structure disposed inside the ceramic insulating shell 11, and is coaxial with the conductive rod on the end cover plate.

[0066] In a preferred embodiment of the vacuum degree detection device for the vacuum interrupter, the ceramic insulating shell 11 is sealed and fixed to the outer side of the end face cover plate away from the vacuum interrupter, and the through hole is provided on the end face cover plate.

[0067] In a preferred embodiment of the vacuum degree detection device for the vacuum interrupter, the ceramic insulating shell 11 is sealed and fixed to the inner side of the end cover plate near the vacuum interrupter, and the through hole is provided on the ceramic insulating shell 11.

[0068] In a preferred embodiment of the vacuum degree detection device for the vacuum interrupter, the end cover plate is either the static cover plate 2 or the dynamic cover plate 5 of the vacuum interrupter.

[0069] In one embodiment, since the thermoelectric generator in the thermoelectric vacuum sensor includes multiple pairs of thermoelectric arms, its overall thermal resistance is composed of the parallel thermal resistance of the thermoelectric arms and the thermal resistance of the air filling the gaps. When the vacuum level at the location of the thermoelectric generator changes, the thermal resistance of the air filling the gaps changes, thereby causing a change in the thermal resistance of the thermoelectric generator. This change in the overall thermal resistance of the thermoelectric generator alters the temperature distribution of the thermoelectric vacuum sensor, causing a change in the temperature of the hot end of the thermoelectric generator, and consequently, a change in the output voltage of the thermoelectric generator. When the temperature at both ends of the thermoelectric vacuum sensor is constant, the change in vacuum level is the only factor causing a change in the overall thermal resistance of the thermoelectric generator, which in turn causes a change in the output voltage of the thermoelectric generator to generate detection data reflecting the vacuum level, thereby achieving vacuum level identification. Based on this principle, a thermoelectric vacuum sensor can achieve continuous measurement of vacuum levels in the range of 1e5Pa to 1e-2Pa when the thermal resistance block meets the thermal resistance matching principle (i.e., the thermal resistance of the thermal resistance block is the same as that of the thermoelectric generator) and the thermoelectric generator meets the design principle (i.e., the number of thermoelectric arms is as large as possible to ensure that the output voltage of the thermoelectric generator is greater than 500mV under a temperature difference of 200 degrees Celsius); the duty cycle is as low as possible, not exceeding 10%; the Seebeck coefficient of the thermoelectric material is as large as possible, reaching 200μV / K; and the thermal resistance of the thermoelectric arm is as large as possible, with the thermal resistance of a single thermoelectric arm needing to reach at least 400K / W). This enables the measurement of vacuum levels in a vacuum interrupter.

[0070] In one embodiment, a vacuum detection device is installed at the end cover plate of the vacuum interrupter, including a thermoelectric vacuum sensor 13, a ceramic insulator, and a cylindrical wire 12 that passes through and is welded to the ceramic insulator. The thermoelectric vacuum sensor 13 is made in a ring shape and installed coaxially with the conductive rod, and is connected to the wire 12 on the ceramic insulator via a conductive sheet. The ceramic insulator is welded to the end cover plate of the vacuum interrupter to achieve a sealed vacuum environment.

[0071] The thermoelectric vacuum detection device uses a thermoelectric vacuum sensor 13 to detect the vacuum level of the vacuum interrupter. The thermoelectric vacuum sensor 13 comprises a cold junction 131, a hot junction 134, an electrode 132, a thermoelectric arm 133, a thermal resistance block 135, a temperature measuring device, and a heating device 136. All components of the thermoelectric vacuum sensor 13 are made of high-temperature resistant materials, capable of withstanding the high temperatures during assembly, baking, and brazing in the vacuum interrupter manufacturing process. Due to the temperature resistance of the thermoelectric vacuum sensor, it can be assembled with other components of the vacuum interrupter and then subjected to degassing, baking, and brazing sealing in a vacuum furnace. The temperature during this process often reaches 900 degrees Celsius, significantly limiting the factory integration of other vacuum sensors. As a component of the vacuum interrupter, the thermoelectric vacuum sensor does not require changes to the existing process flow and can be factory-installed, facilitating the widespread use of the vacuum interrupter vacuum detection device.

[0072] The ceramic insulating body of the thermoelectric vacuum detection device is used as a ring-shaped insulating shell. The ceramic insulating shell 11 is welded to the end cover plate of the vacuum interrupter, and the thermoelectric vacuum sensor 13 is installed inside the ceramic insulating shell 11. A small hole is opened at the bottom end cover plate of the ceramic insulating shell 11 to communicate with the vacuum interrupter, which on the one hand ensures that the vacuum level of the thermoelectric vacuum sensor 13 and the vacuum interrupter are the same; on the other hand, it minimizes the damage to the original vacuum interrupter structure.

[0073] The cold junction 131 of the thermoelectric vacuum sensor 13 is welded to the end face cover plate of the vacuum interrupter. The end face cover plate of the vacuum interrupter is mostly made of metal and has good thermal conductivity. By welding the cold junction of the thermoelectric vacuum sensor to the end face cover plate, the cold junction 131 can be directly dissipated through the end face cover plate, or a heat dissipation device can be installed on the end face cover plate to dissipate heat from the cold junction 131, thereby maintaining a relatively stable cold junction temperature.

[0074] The vacuum detection signal of the thermoelectric vacuum detection device can be led out through the wire 12 on the ceramic insulator or sent to an external monitoring system through the built-in wireless transmitter.

[0075] The thermoelectric vacuum detection device can be powered by a battery, mains power, or electromagnetic induction.

[0076] In a second implementation scheme, the vacuum detection device can also be structured as follows: the vacuum detection device is installed inside the end face cover of the vacuum interrupter, i.e., located inside the vacuum interrupter. The cold end 131 of the thermoelectric vacuum sensor 13 is in close contact with the end face cover of the vacuum interrupter. Heat dissipation of the cold end 131 is achieved directly through the end face cover, or by adding a heat dissipation device to the end face cover, thus maintaining a relatively stable cold end temperature. A slot is provided at the end face cover for leading out the wire 12, and the slot is sealed with a ceramic insulator. The wire 12 passes through and is welded to the ceramic insulator, achieving insulation between the wire 12 and the end face cover.

[0077] A vacuum interrupter monitoring system includes,

[0078] The vacuum degree detection device 1 of the vacuum interrupter chamber;

[0079] A temperature sensor is disposed between the thermal resistance block 135 and the heating device 136 to generate temperature data;

[0080] The sensor receiving module receives the detection signal and temperature data from the vacuum degree detection device.

[0081] The data processing module is connected to the sensor receiving module to generate vacuum data based on the detection signal and adjust the heating temperature of the heating device 136 based on the temperature data.

[0082] A data storage module, connected to the data processing module, is used to receive and store the vacuum level data.

[0083] The data monitoring module is connected to the data processing module. When the vacuum level data exceeds a predetermined threshold, the data monitoring module will issue an alarm.

[0084] In one embodiment, the monitoring system includes a sensor receiving module, a data processing module, a data storage module, and a data monitoring module. The sensor receiving module receives the detection signal transmitted by the vacuum degree detection device and sends it to the data processing module. The data processing module processes and analyzes the received detection signal to obtain the corresponding vacuum degree. The data processing module transmits the vacuum degree data to the data storage module and the data monitoring module. The data monitoring module controls the display of the vacuum degree and issues an alarm for a decrease in vacuum degree. The data storage module is used to save historical data. The data processing module also processes the temperature signal transmitted from the temperature measuring device and controls the heating device 136 to heat the hot end 134 of the thermoelectric vacuum sensor.

[0085] Reference Figures 2 to 3The ceramic insulating shell 11 is brazed onto the end cover plate 2 of the vacuum interrupter. A small hole communicating with the vacuum interrupter is opened at the end cover plate inside the ceramic insulating shell, ensuring that the vacuum level inside the ceramic insulating shell is consistent with that inside the vacuum interrupter. A circular thermoelectric vacuum sensor is located inside the ceramic insulating shell. A wire is welded through the insulating shell, allowing detection signals and temperature data to be transmitted to an external monitoring system. Figure 4 This is a schematic diagram of a thermoelectric vacuum sensor. The thermoelectric vacuum sensor comprises a cold junction 131, an electrode 132, a thermoelectric arm 133, a hot junction 134, a thermal resistance block 135, and a heating device 136, all fabricated in a ring shape and installed inside a ceramic insulating shell 11, as shown in the diagram. A temperature measuring device can be used, either as a temperature probe or installed between the thermal resistance block and the heating device, to measure the heating temperature. The cold junction of the thermoelectric vacuum sensor is welded to the stationary end cover plate 2 of the vacuum interrupter, and heat is dissipated from the cold junction through the end cover plate. The thermoelectric vacuum sensor transmits signals and provides energy through wires on the ceramic insulating shell. All parts of the thermoelectric vacuum sensor are made of high-temperature resistant materials, capable of withstanding the high temperatures during assembly, baking, and brazing during the manufacturing process of the vacuum interrupter. This allows for factory implantation.

[0086] Reference Figures 5 to 6 The vacuum detection device can also be structured as follows: a thermoelectric vacuum sensor 13 is made into a ring and installed inside the stationary cover plate 2 or the moving cover plate 5 of the vacuum interrupter, i.e., located inside the vacuum interrupter. A ceramic insert 11 is used to seal the vacuum interrupter at the end cover plate. The ceramic insert has evenly spaced circular holes for leading out wires 12, which pass through the holes and are sealed with a ceramic pin. The thermoelectric vacuum sensor is directly installed inside the interrupter, eliminating the need for a ceramic insulating shell for sealing. The cold end of the thermoelectric vacuum sensor in the vacuum detection device is in close contact with the end cover plate of the vacuum interrupter for heat dissipation. The detection signal can be led out through the electrode on the ceramic insert or transmitted wirelessly to an external monitoring system.

[0087] In one embodiment of the vacuum interrupter monitoring system, the data monitoring module includes a buzzer or an LED light.

[0088] A vacuum interrupter includes,

[0089] The ceramic outer shell 4 has a hollow cylindrical structure;

[0090] The static cover plate 2 is sealed and brazed to one end of the ceramic shell 4;

[0091] The static conductive rod 3 passes through the center of the static cover plate 2;

[0092] The movable cover plate 5 is sealed and brazed to the other end of the ceramic shell 4;

[0093] The movable conductive rod 6 passes through the center of the movable cover plate 5;

[0094] The vacuum degree detection device of the vacuum interrupter is located on the upper or lower surface of the moving or stationary cover plate and is arranged coaxially with the conductive rod.

[0095] The shield 7 is located inside the ceramic shell 4.

[0096] In one embodiment, such as Figure 1 As shown, the vacuum interrupter includes a vacuum detection device 1, a stationary cover plate 2, a stationary conductive rod 3, a ceramic shell 4, a movable cover plate 5, a movable conductive rod 6, and a shielding cover 7. The stationary cover plate 2 and the movable cover plate 5 are brazed onto the ceramic shell 4. The vacuum detection device 1 is installed on either the stationary cover plate 2 or the movable cover plate 5.

[0097] The thermoelectric vacuum sensor of this invention is connected to the vacuum interrupter, ensuring that the measured vacuum level reflects the vacuum level inside the interrupter. The vacuum detection signal can be led out through a wire on a ceramic insulator or transmitted wirelessly to an external monitoring system. The external monitoring system analyzes and processes the signal to obtain the vacuum level inside the interrupter, enabling real-time monitoring of the vacuum level. The encapsulation process of the vacuum interrupter requires degassing, baking, and sealing of the components in a vacuum furnace at 800-900℃. This invention uses a high-temperature resistant thermoelectric vacuum sensor for vacuum level detection, allowing for implantation at the factory. It can be used in the field of online monitoring of vacuum interrupter vacuum levels.

[0098] Although embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments and application fields described above. The specific embodiments described above are merely illustrative and instructive, and not restrictive. Those skilled in the art can make many other forms based on the guidance of this specification and without departing from the scope of protection of the claims of the present invention, and all of these are within the scope of protection of the present invention.

Claims

1. A vacuum interrupter monitoring system, characterized in that, It includes, A vacuum degree detection device for a vacuum interrupter, comprising, A ceramic insulating shell is sealed and fixed to the end face cover plate of the vacuum interrupter. The ceramic insulating shell is a circular ring structure coaxial with the conductive rod on the end face cover plate. The sealing area formed by the end face cover plate and the ceramic insulating shell has a through hole communicating with the vacuum interrupter. A thermoelectric vacuum sensor, disposed inside the ceramic insulating housing to detect the vacuum level of the vacuum interrupter, the thermoelectric vacuum sensor comprising... The cold end is fixed to the end face cover plate and transfers heat to the conductive rod through the end face cover plate. An electrode, which is supported on the cold end; A thermoelectric arm, which is supported on the electrode; The hot end is stacked on the thermoelectric arm; A thermal resistance block, which is stacked on the hot end; A heating device, which is stacked on the thermal resistance block; A temperature sensor is disposed between the thermal resistance block and the heating device to generate temperature data; The sensor receiving module receives the detection signal and temperature data from the vacuum degree detection device. A data processing module is connected to the sensor receiving module to generate vacuum data based on the detection signal and adjust the heating temperature of the heating device based on the temperature data; A data storage module, connected to the data processing module, is used to receive and store the vacuum level data. The data monitoring module is connected to the data processing module. When the vacuum level data exceeds a predetermined threshold, the data monitoring module will issue an alarm.

2. The vacuum interrupter monitoring system according to claim 1, wherein, The data monitoring module includes a buzzer or an LED light.

3. The vacuum interrupter monitoring system according to claim 1, wherein, The vacuum degree detection device also includes, A conductive sheet, which is electrically connected to the thermoelectric vacuum sensor; A wire, which passes through and is soldered to a ceramic insulating shell, is electrically connected to the conductive sheet.

4. The vacuum interrupter monitoring system according to claim 3, wherein, The wire is a cylindrical wire that connects to the thermoelectric vacuum sensor. It is led out from the ceramic insulating shell and the end cover plate through a ceramic insert, which is welded to the end cover plate.

5. The vacuum interrupter monitoring system according to claim 1, wherein, The thermoelectric vacuum sensor is a ring-shaped structure housed inside a ceramic insulating shell, and it is coaxial with the conductive rod on the end cover plate.

6. The vacuum interrupter monitoring system according to claim 1, wherein, The ceramic insulating shell is sealed and fixed to the outer side of the end face cover plate away from the vacuum interrupter, and the through hole is provided on the end face cover plate.

7. The vacuum interrupter monitoring system according to claim 1, wherein, The ceramic insulating shell is sealed and fixed to the inner side of the end face cover plate near the vacuum interrupter, and the through hole is provided on the ceramic insulating shell.

8. The vacuum interrupter monitoring system according to claim 1, wherein, The end cover plate is either a static cover plate or a dynamic cover plate of a vacuum interrupter.

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