Oil-gas and circuit isolated condition monitoring device for oil-immersed transformer

Abstract

Disclosed in the present invention is an oil-gas and circuit isolated condition monitoring device for an oil-immersed transformer, the condition monitoring device comprising a housing, wherein an isolation seat is disposed on one side of the housing, and an isolation cavity is formed in the isolation seat; a control module is disposed in the isolation cavity, and the isolation cavity is in communication with an inner cavity of the housing via a connection cavity; a float assembly, which is movable up and down, is provided in the inner cavity of the housing, and a detection assembly is provided on the float assembly; and a leading-out terminal of the control module is located in the connection cavity and electrically connected to the detection assembly. By providing the isolation seat, an electrical control installation area and an oil-gas monitoring area are completely isolated to form relatively independent spaces, so that the control module is spatially isolated from the inner cavity of the housing. Wiring between the control module and the detection assembly is performed within the connection cavity, reducing the contact area between a wiring area and oil-gas. Even when the housing contains a high content of oil-gas, the control module is not affected, thereby improving the operational safety of the control module.

Description

Oil and gas and circuit isolated oil immersed transformer state monitoring device TECHNICAL FIELD

[0001] The present application relates to the field of transformer equipment, in particular to an oil and gas and circuit isolated oil immersed transformer state monitoring device. BACKGROUND

[0002] The oil level, oil pressure and oil temperature of the oil immersed transformer are monitored by the oil level meter, and the control module of the oil level meter is built in the cavity, which is in contact with the oil gas of the oil immersed transformer. In addition, when the oil immersed transformer is refueled from the oil filling hole of the oil level meter, the control module is easily soaked in oil, which affects the components on the control module, and may cause short circuit and fire of the control module, and the fire spreads rapidly in the oil gas environment.

[0003] Therefore, the prior art still needs to be improved and improved. SUMMARY

[0004] In view of the shortcomings of the prior art, the purpose of the present application is to provide an oil and gas and circuit isolated oil immersed transformer state monitoring device, which can highly isolate the control module from the oil gas and improve the safety.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] An oil and gas and circuit isolated oil immersed transformer state monitoring device, comprising a shell, a isolation seat is arranged on one side of the shell, a isolation cavity is arranged in the isolation seat, a control module is arranged in the isolation cavity, the isolation cavity is communicated with the inner cavity of the shell through a connecting cavity, a float assembly which can move up and down is arranged in the inner cavity of the shell, a detection assembly is arranged on the float assembly, and the outgoing line end of the control module is located in the connecting cavity and is electrically connected with the detection assembly.

[0007] The oil and gas and circuit isolated oil immersed transformer state monitoring device, wherein the shell comprises a mounting shell and a monitoring shell, the mounting shell is located on the top of the monitoring shell, a wiring cavity is formed in the mounting shell, the connecting cavity is provided with an incoming line port and an outgoing line port at two ends respectively, the incoming line port is located at the bottom of the isolation cavity, the outgoing line port is located at the cavity wall of the wiring cavity, and the opening directions of the incoming line port and the outgoing line port are perpendicular to each other, and an activity cavity is formed in the monitoring shell, and the float assembly is located in the activity cavity.

[0008] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the connecting cavity is provided with a clamping groove, the clamping groove is provided with a switching plate, the switching plate divides the connecting cavity into a sealed cavity and an outlet cavity, the sealed cavity is provided with a glue filling layer, the outlet end is located in the sealed cavity, and the outlet end is electrically connected with the switching plate.

[0009] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the connecting cavity is provided with a clamping groove, the clamping groove is provided with a switching plate, the switching plate divides the connecting cavity into a sealed cavity and an outlet cavity, the sealed cavity is provided with a glue filling layer, the outlet end is located in the sealed cavity, and the outlet end is electrically connected with the switching plate.

[0010] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the control module is provided with a display unit, the isolation cavity is provided with an isolation lens at the cavity opening, and the periphery of the isolation lens is detachably connected with the cavity opening of the isolation cavity through a compression ring, and the isolation lens is provided with a transparent observation area corresponding to the position of the display unit; the activity cavity is provided with a reach sensor, and the reach sensor is electrically connected with the control module.

[0011] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the periphery of the compression ring is provided with an external thread, and the cavity opening of the isolation cavity is provided with an internal thread threadedly connected with the external thread.

[0012] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the float assembly comprises a sliding rod, the top of the sliding rod is provided with an identification block, the bottom of the sliding rod extends downwardly to the lower portion of the activity cavity, and the extension end of the sliding rod is provided with a floating block; the bottom of the monitoring shell is provided with a guide seat slidably connected with the sliding rod, and the monitoring shell is provided with at least one observation window corresponding to the position of the identification block.

[0013] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the guide seat comprises a guide sleeve and an end cover, the end cover is arranged at the cavity opening of the activity cavity, the guide sleeve is arranged on the end cover, the guide sleeve is provided with a sliding hole slidably connected with the sliding rod, and the both ends of the sliding hole extend outwardly to form an extension sleeve.

[0014] The oil and gas circuit isolation type oil immersed transformer state monitoring device, the top of the shell is provided with a pressure relief valve, and the bottom of the pressure relief valve is threadedly connected with the shell.

[0015] The oil-gas and circuit isolation type oil-immersed transformer state monitoring device, the isolation seat is internally provided with a wireless communication module electrically connected with the control module, and the bottom of the isolation seat is provided with at least one communication interface. Advantages:

[0016] The oil-gas and circuit isolation type oil-immersed transformer state monitoring device is provided with an isolation seat, so that the electric control installation area and the oil-gas monitoring area are completely separated, and the two form relatively independent spaces, the control module can be spatially isolated from the inner cavity of the shell, the control module and the detection assembly complete wiring in the connecting cavity, the contact area of the wiring area with oil gas is reduced, even if the shell contains high content of oil gas, the control module will not be affected, and the safety of the control module during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a schematic diagram of the overall structure of the oil-gas and circuit isolation type oil-immersed transformer state monitoring device provided by the present application;

[0018] Fig. 2 is a sectional view of Fig. 1 in the A-A direction;

[0019] Fig. 3 is a sectional view of Fig. 1 in the B-B direction;

[0020] Fig. 4 is a schematic diagram of the disassembled structure of the shell in the oil-gas and circuit isolation type oil-immersed transformer state monitoring device provided by the present application;

[0021] Fig. 5 is a schematic diagram of the overall structure of the shell in the oil-gas and circuit isolation type oil-immersed transformer state monitoring device provided by the present application;

[0022] Fig. 6 is a sectional view of Fig. 5 in the C-C direction.

[0023] Main element symbol explanation: 1-shell, 11-installation shell, 12-monitoring shell, 13-wiring cavity, 14-movable cavity, 15-middle cylinder, 16-inner sleeve, 17-wire outlet groove, 18-guide seat, 181-guide sleeve, 182-end cover, 19-observation window, 2-isolation seat, 21-isolation cavity, 22-connecting cavity, 23-adapter plate, 24-sealing cavity, 25-wire outlet cavity, 3-control module, 4-float assembly, 41-sliding rod, 42-identification block, 43-floating block, 5-isolation lens, 6-pressing ring, 7-pressure relief valve, 8-communication interface. DETAILED DESCRIPTION

[0024] The application provides an oil-gas and circuit isolated oil-immersed transformer state monitoring device, in order to make the purpose, technical scheme and effect of the application more clear and definite, the application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

[0025] In the description of the application, it should be understood that the orientation or positional relationship indicated by the terms "middle", "inner side", "outer side" and the like is the orientation or positional relationship of the application based on the drawings, and is only for the convenience of describing the application and simplifying the description. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0026] Please refer to FIG. 1 to FIG. 6, the application provides an oil-gas and circuit isolated oil-immersed transformer state monitoring device, including a shell 1, one side of the shell 1 is provided with an isolation seat 2, the isolation seat 2 is provided with an isolation cavity 21, the control module 3 is arranged in the isolation cavity 21, the isolation cavity 21 is communicated with the inner cavity of the shell 1 through the connecting cavity 22, the inner cavity of the shell 1 is provided with a float assembly 4 which can move up and down, the float assembly 4 is provided with a detection assembly, the outgoing line end of the control module 3 is located in the connecting cavity 22, and the outgoing line end is electrically connected with the detection assembly.

[0027] In actual use, the device is installed and fixed on the oil injection hole of the oil-immersed transformer, the float assembly 4 is used to monitor the oil level in the oil-immersed transformer, the user can judge the change of the oil level by observing the suspension of the float assembly 4, while measuring the oil level, the oil temperature and oil pressure of the oil-immersed transformer are measured by the detection assembly, and the oil temperature signal and oil pressure signal are fed back to the control module 3, the oil consumption state of the oil-immersed transformer is sent to the user in real time by the control module 3; and the electric control installation area and the oil-gas monitoring area are completely separated by setting the isolation seat 2, so that they form relatively independent spaces, the control module 3 can be spatially isolated from the inner cavity of the shell 1, the control module 3 and the detection assembly are connected in the connecting cavity 22, reducing the contact area between the wiring area and the oil-gas, even if the shell 1 contains high content of oil-gas, it will not affect the control module 3, improving the safety of the control module 3 in use.

[0028] It should be noted that the control module 3 can be a controller composed of chips such as existing STM32 master chip, ESP32 master chip, nRF52 master chip, etc., the specific structure and working principle are all prior art, which will not be described here. The control module 3 is connected with the terminal equipment of the user to realize communication connection, so as to realize data interaction, the terminal equipment can be existing mobile phones, computers, tablet computers and the like, which will not be described here.

[0029] In one embodiment, the detection assembly comprises a temperature detection unit and an oil pressure monitoring unit; the temperature detection unit can be a temperature probe, which can adopt a thermistor, an infrared probe, etc.; the oil pressure detection unit can be a pressure sensor.

[0030] As shown in FIGS. 1-6, further, the shell 1 comprises a mounting shell 11 and a monitoring shell 12, the mounting shell 11 is located on the top of the monitoring shell 12; a wiring cavity 13 is formed in the mounting shell 11, two ends of the wiring cavity 22 are respectively provided with an inlet and an outlet, the inlet is located at the bottom of the isolation cavity 21, the outlet is located at the cavity wall of the wiring cavity 13, and the opening directions of the inlet and the outlet are perpendicular to each other; a movable cavity 14 is formed in the monitoring shell 12, the float assembly 4 is located in the movable cavity 14; by designing the mounting shell 11 and the monitoring shell 12 separately, the wiring area and the monitoring area can be relatively independent, which is convenient for installation and maintenance; the wiring cavity 13 makes the access and exit of the wire more orderly, and the opening directions of the inlet and the outlet of the wiring cavity 22 are set to be perpendicular to each other, which helps to reduce the interference between the wires, improve the convenience and safety of wiring, and make it difficult for oil and gas to pass through the wiring cavity 22, thereby reducing the risk of oil and gas entering the isolation cavity 21; the inlet is located at the bottom of the isolation cavity 21, and the outlet is located at the cavity wall of the wiring cavity 13, which helps to save space and make the internal structure of the shell 1 more compact; the float assembly 4 moves up and down in the movable cavity 14 according to the change of the oil level, which can realize real-time monitoring of liquid or gas and ensure the accuracy and reliability of monitoring; the design of the movable cavity 14 in the monitoring shell 12 enables the float assembly 4 to move freely therein, thereby improving the stability of the entire shell 1 and the sensitivity of monitoring.

[0031] Further, as shown in FIGS. 1-6, the connecting cavity 22 is provided with a clamping groove, and the clamping groove is provided with an adapter plate 23, which separates the connecting cavity 22 into a sealed cavity 24 and a wire outlet cavity 25. The sealed cavity 24 is provided with a glue filling layer, and the wire outlet end is located in the sealed cavity 24 and electrically connected with the adapter plate 23. The detection assembly is provided with a wiring end electrically connected with the adapter plate 23. The clamping groove and the adapter plate 23 arranged in the connecting cavity 22 can effectively separate the connecting cavity 22 into the sealed cavity 24 and the wire outlet cavity 25 to form two relatively independent spaces, cooperating with the isolation cavity 21 and the wiring cavity 13 to form multi-level isolation. The glue filling layer in the sealed cavity 24 can provide good sealing effect to prevent oil and gas from entering, thereby protecting the control module 3 from damage. The wire outlet end is located in the sealed cavity 24, ensuring the stability and durability of the wire outlet end. At the same time, the electrical connection between the wire outlet end and the adapter plate 23 ensures the reliability of signal transmission. In addition, the adapter plate 23 also plays a role in isolating oil and gas to prevent oil and gas from entering the sealed cavity 24. The wiring end of the detection assembly is electrically connected with the adapter plate 23, which reduces the assembly difficulty of the detection assembly and the control module 3. The adapter plate 23 and the wiring end complete the connection, so that the signal can be accurately and correctly transmitted from the detection assembly to other circuit parts, improving the performance and stability of the entire system.

[0032] In one embodiment, the wiring end is provided with a wiring terminal, and the wiring end is connected with the adapter plate 23 through the wiring terminal. The plug-in connection improves the assembly efficiency of the device.

[0033] Further, as shown in FIGS. 1-6, a middle cylinder 15 is arranged between the wiring cavity 13 and the movable cavity 14, and an inner sleeve 16 is detachably connected to the middle cylinder 15. The top of the inner sleeve 16 extends into the wiring cavity 13, and at least one wire outlet groove 17 is arranged on the top of the inner sleeve 16. The middle cylinder 15 arranged between the wiring cavity 13 and the movable cavity 14 and the detachable inner sleeve 16 can effectively isolate the wiring cavity 13 and the movable cavity 14 to prevent direct contact between them, thereby reducing the wear or interference that may be caused by the movement of the movable cavity 14. The top of the inner sleeve 16 extends into the wiring cavity 13 and is provided with the wire outlet groove 17, which helps to neatly guide and fix the wires, avoiding messy wires, improving the neatness and safety of the wiring, and at the same time, forming a certain height difference to reduce the risk of oil and gas entering the wiring cavity 13. In addition, the detachable design of the inner sleeve 16 facilitates the maintenance and replacement of the wires, increasing the flexibility and service life of the equipment.

[0034] As shown in FIG. 1 to FIG. 6, further, the control module 3 is provided with a display unit, the cavity mouth of the isolation cavity 21 is provided with an isolation lens 5, and the periphery of the isolation lens 5 is detachably connected with the cavity mouth of the isolation cavity 21 through a compression ring 6. The isolation lens 5 is provided with a transparent observation area at a position corresponding to the display unit; the control module 3 is provided with a display unit, which can facilitate the user to intuitively view the oil level condition and judge whether the oil level is normal. If the suspension position of the float assembly 4 is abnormal, an abnormal signal is fed back to the control module 3, and the oil level abnormal problem is intuitively displayed through the display unit. The cavity mouth of the isolation cavity 21 is provided with an isolation lens 5, which can effectively prevent external dust, water vapor and other pollutants from entering the inside of the isolation cavity 21, and protect the internal electronic components from damage. The periphery of the isolation lens 5 is detachably connected with the cavity mouth of the isolation cavity 21 through the compression ring 6, which facilitates the user to easily replace the isolation lens 5 when needed, and improves the convenience of maintenance. The isolation lens 5 is provided with a transparent observation area at a position corresponding to the display unit, so that the user can clearly observe the information on the display unit even in the case of covering the isolation lens 5, and ensures the use efficiency and user experience of the equipment.

[0035] As shown in FIG. 1 to FIG. 6, further, the periphery of the compression ring 6 is provided with an external thread, and the cavity mouth of the isolation cavity 21 is provided with an internal thread threadedly connected with the external thread; the assembly difficulty between the compression ring 6 and the isolation cavity 21 can be reduced through the threaded connection, and the efficiency of the device during assembly is improved.

[0036] As shown in FIG. 1 to FIG. 6, further, the float assembly 4 includes a slide rod 41, the top of the slide rod 41 is provided with an identification block 42, the bottom of the slide rod 41 extends to the lower part of the movable cavity 14, and the extending end of the slide rod 41 is provided with a floating block 43; the bottom of the monitoring shell 12 is provided with a guide seat 18 which is in sliding connection with the slide rod 41, and the monitoring shell 12 is provided with at least one observation window 19 corresponding to the position of the identification block 42; a reach sensor is arranged in the movable cavity 14, and the reach sensor is in electrical connection with the control module 3; by arranging the identification block 42 on the top of the slide rod 41, the position change of the slide rod 41 can be more accurately monitored, thereby improving the monitoring accuracy of the whole system, and the observation window 19 is arranged on the monitoring shell 12, which facilitates the user to observe the movement state of the identification block 42 and intuitively observe the oil level state in the transformer; the bottom of the slide rod 41 extends to the lower part of the movable cavity 14 and is provided with the floating block 43, which helps the slide rod 41 to move stably in the movable cavity 14 and reduces the measurement error caused by unstable movement; the reach sensor is arranged in the movable cavity 14, which can automatically monitor the position of the slide rod 41, and after being in electrical connection with the control module 3, the automatic monitoring and control process can be realized, through the electrical connection between the reach sensor and the control module 3, the system can monitor and respond to the position change of the slide rod 41 in real time, thereby improving the operation reliability of the whole system.

[0037] As shown in FIG. 1 to FIG. 6, further, the guide seat 18 includes a guide sleeve 181 and an end cover 182, the end cover 182 is arranged at the cavity opening of the movable cavity 14, the guide sleeve 181 is arranged on the end cover 182, a sliding hole which is in sliding connection with the slide rod 41 is arranged in the guide sleeve 181, and the two end openings of the sliding hole extend outward to form extending sleeves; the sliding connection between the guide sleeve 181 and the slide rod 41 ensures the accurate guidance of the slide rod 41 in the guide seat 18, and reduces the deviation and shaking in the movement process; the end cover 182 is arranged at the cavity opening of the movable cavity 14, and is used in combination with the guide sleeve 181 to provide stable support for the slide rod 41, thereby avoiding the structural deformation caused by vibration or external force; the two end openings of the sliding hole in the guide sleeve 181 extend outward to form extending sleeves, which can disperse the stress concentration generated when the slide rod 41 contacts the guide sleeve 181, thereby reducing the abrasion and prolonging the service life of the guide seat 18; due to the structural design of the guide sleeve 181 and the end cover 182, the guide seat 18 is more convenient and faster to maintain or replace, thereby reducing the maintenance cost and time, and the stability and accuracy of the guide seat 18 can ensure the stability of the movement of the slide rod 41, thereby improving the operation safety in the use process.

[0038] As shown in FIGS. 1-6, further, the top of the shell 1 is provided with a pressure relief valve 7, and the bottom of the pressure relief valve 7 is threadedly connected with the shell 1; by setting the pressure relief valve 7 as a detachable structure, the user can conveniently supplement oil to the transformer, directly supplement oil to the transformer by using the inner cavity of the shell 1 as an oil guiding channel, and during the oil supplementing process, since the control module 3 is externally arranged in the isolation seat 2, the control module 3 will not be eroded by the oil, and the two are not in contact with each other, thereby reducing the risk of damage to the control module 3.

[0039] As shown in FIGS. 1-6, further, the isolation seat 2 is provided with a wireless communication module electrically connected with the control module 3, and the bottom of the isolation seat 2 is provided with at least one communication interface 8; by the wireless communication module, the flexibility and expansibility of the system are improved, a plurality of wireless communication protocols can be supported, so that the device can communicate with different types of external devices; by the communication interface 8 at the bottom, wired connection can be conveniently performed, thereby providing a backup communication mode for occasions where wireless signal coverage is not available or unstable.

[0040] In one embodiment, the wireless communication module can be an existing Bluetooth module, WiFi module, etc., and the specific structure and working principle are all prior art, which will not be described here.

[0041] In summary, by setting the isolation seat 2, the electric control installation area and the oil and gas monitoring area are completely separated, so that the two form relatively independent spaces, the control module 3 can be spatially isolated from the inner cavity of the shell 1, the control module 3 and the detection assembly complete wiring in the connecting cavity 22, the contact area of the wiring area with oil and gas is reduced, even if the shell 1 contains high content of oil and gas, the control module 3 will not be affected, and the safety of the control module 3 during use is improved.

[0042] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the present application, and all these changes or replacements shall belong to the protection scope of the appended claims of the present application.

Claims

1. An oil-immersed transformer condition monitoring device for isolating oil and gas from electrical circuits, characterized by, The utility model provides a kind of water level monitor, including shell, the one side of the shell is provided with isolation seat, isolation cavity is provided in the isolation seat, control module is provided in the isolation cavity, the isolation cavity is communicated with the inner cavity of the shell by connecting cavity, the inner cavity of the shell is provided with the float assembly that can be up and down, and detection assembly is provided on the float assembly, the outgoing line end of the control module is located in the connecting cavity, and the outgoing line end is electrically connected with the detection assembly.

2. The oil gas and electric circuit isolated oil immersed transformer condition monitoring device according to claim 1, characterized in that, The shell includes a mounting shell and a monitoring shell, the mounting shell is located on the top of the monitoring shell, a wiring cavity is formed in the mounting shell, the connecting cavity is provided with a wire inlet and a wire outlet at two ends respectively, the wire inlet is located at the bottom of the isolation cavity, the wire outlet is located at the cavity wall of the wiring cavity, and the opening direction of the wire inlet and the wire outlet is perpendicular to each other, and the float assembly is located in the movable cavity in the monitoring shell.

3. The oil-immersed transformer condition monitoring device with oil and electric circuit isolation according to claim 1, characterized in that, A clamping groove is arranged in the connecting cavity, and an adapter plate is arranged in the clamping groove, the adapter plate separates the connecting cavity into a sealed cavity and a wire outlet cavity, a glue filling layer is arranged in the sealed cavity, the wire outlet end is located in the sealed cavity, and the wire outlet end is electrically connected with the adapter plate, and the detection assembly is provided with a wiring end, which is electrically connected with the adapter plate.

4. The oil gas isolated oil immersed transformer condition monitoring device according to claim 2, characterized in that, A middle tube is arranged between the wiring cavity and the movable cavity, an inner sleeve is detachably connected to the middle tube, the top of the inner sleeve extends into the wiring cavity, and at least one wire outlet groove is arranged at the top of the inner sleeve.

5. The oil gas isolated oil immersed transformer condition monitoring device according to claim 1, characterized in that, A display unit is arranged on the control module, an isolation lens is arranged at the cavity opening of the isolation cavity, and the periphery of the isolation lens is detachably connected to the cavity opening of the isolation cavity through a compression ring, and a transparent observation area is arranged on the isolation lens corresponding to the position of the display unit.

6. The oil gas isolated oil immersed transformer condition monitoring device according to claim 5, characterized in that, An outer thread is arranged at the periphery of the compression ring, and an inner thread is arranged at the cavity opening of the isolation cavity and is threadedly connected with the outer thread.

7. The oil gas isolated oil immersed transformer condition monitoring device according to claim 2, characterized in that, The float assembly includes a sliding rod, an identification block is arranged at the top of the sliding rod, the bottom of the sliding rod extends downwardly into the movable cavity, and a floating block is arranged at the extension end of the sliding rod, a guide seat is arranged at the bottom of the monitoring shell and is slidably connected with the sliding rod, at least one observation window is arranged at the monitoring shell corresponding to the position of the identification block, and a reach sensor is arranged in the movable cavity and is electrically connected with the control module.

8. The oil gas isolated oil immersed transformer condition monitoring device according to claim 7, characterized in that, The guide seat includes a guide sleeve and an end cover, the end cover is arranged at the cavity opening of the movable cavity, the guide sleeve is arranged on the end cover, a sliding hole is arranged in the guide sleeve and is slidably connected with the sliding rod, and the two end holes of the sliding hole extend outwardly to form an extension sleeve.

9. The oil gas and electric circuit isolated oil immersed transformer condition monitoring device according to claim 1, characterized in that, A pressure relief valve is arranged at the top of the shell, and the bottom of the pressure relief valve is threadedly connected with the shell.

10. The oil gas isolated oil immersed transformer condition monitoring device according to claim 1, characterized in that, A wireless communication module is arranged in the isolation seat and is electrically connected with the control module, and at least one communication interface is arranged at the bottom of the isolation seat.

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