72results about How to "Avoid electromagnetic interference" patented technology

An electronic cigarette radio frequency source device comprises a radio frequency function board and a shielding isolation frame fixedly connected to the radio frequency function board. The system function board is fixedly connected to the shielding isolation frame and located on the side, away from the radio frequency function board, of the shielding isolation frame; wherein an accommodating space is formed among the radio frequency function board, the shielding isolation frame and the system function board, a shielding partition plate group is integrally formed on the shielding isolation frame, and the accommodating space is divided by the shielding partition plate group. The accommodating space is divided by the shielding partition plate group, and the accommodating space in the device is divided into a plurality of areas, so that the areas in the accommodating space can effectively avoid mutual electromagnetic interference. The design that the radio frequency function board is located on the side, away from the system function board, of the shielding isolation frame, the containing space is formed among the radio frequency function board, the shielding isolation frame and the system function board, and radio frequency radiation is sealed in the containing space is adopted, so that the electromagnetic compatibility between a circuit on the radio frequency function board and a circuit on the system function board is improved.

The utility model relates to vehicle sensor technical field, and disclose a kind of vehicle over-the-horizon obstacle detection device. Including vehicle body, it is characterized in that, still include: fixed mounting frame, radar signal processing module, millimeter wave radar, the vehicle body bottom is fixedly installed with fixed mounting frame, the inboard of fixed mounting frame is fixedly installed with radar signal processing module, the inboard of fixed mounting frame is fixedly installed with millimeter wave radar, the fixed mounting frame contains frame main body, the frame main body both sides symmetry fixed mounting have steerable wide-angle camera, the steerable wide-angle camera, one end fixed mounting have evenly distributed fifteen mounting frame door, it is favorable to provide impact resistance and anti-deformation mechanical protection, ensure the security of internal precision component under bad road condition, and the mounting frame door installed thereon uses quick release design to facilitate maintenance replacement.

This utility model discloses a rotating card holder with a function to isolate mutual interference between two card signals. It includes two flaps, each rotatably mounted in a receiving groove via a rotating shaft. An anti-interference plate is fixedly installed between the two receiving grooves on the card holder body. A rectangular opening is formed on the surface of each flap, and a leather card holder is fixedly installed within the opening. An elastic locking mechanism is installed on the front side of the card holder body to lock the two flaps. This utility model card holder has two rotatable flaps. When a card is inserted into the card slot near the outer side of the leather card holder, the elastic locking mechanism ensures a stable connection between the flaps and the card holder body, preventing the card from falling out of the card slot. The anti-interference plate absorbs circuit noise and eliminates electromagnetic interference, preventing mutual interference between the signals of the two leather card holders and ensuring that the signals of the inductive cards can be read smoothly.

The invention relates to the technical field of vehicle-mounted communication, in particular to a vehicle-mounted network architecture, a signal transmission method and a vehicle, and the vehicle-mounted network architecture comprises a plurality of area controllers and a vehicle control platform; the plurality of area controllers are all in direct communication connection with the vehicle control platform through a power line, and any area controller is at least in direct communication connection with another area controller through a power line, so that a plurality of transmission paths are arranged between any area controller and the vehicle control platform; and the vehicle control platform is used for determining a target transmission path for signal transmission and / or power transmission according to the state of each transmission path, so that the stability of vehicle-mounted communication and power supply is improved.

The present application relates to the technical field of spacecraft propulsion system, and more particularly to a micro-newton hybrid mode propulsion system and method based on gas working substance. The system comprises a gas storage unit, a gas supply unit, a thruster unit and a propulsion system driving and control unit. The gas storage unit adopts symmetrically arranged high-pressure gas cylinders connected through high-pressure isolation valves, and in combination with the automatic balancing strategy of the control unit, effectively solves the problem of on-orbit centroid drift. The gas supply unit includes parallel cold gas propulsion branches and electric propulsion branches, and each branch adopts a mechanical pressure reducer to eliminate vibration and noise caused by electromagnetic valve action from the source, realizing super-static operation of the system. The propulsion system driving and control unit controls the micro-newton cold gas thruster and the micro-newton electric thruster to work alone or in cooperation according to the distribution strategy based on the thrust critical point, realizing the optimal comprehensive efficiency of high precision and high specific impulse in the full thrust range, and being suitable for ultra-high precision space scientific exploration missions.

The application discloses a device and method for collecting 120-channel I2C data, which comprises a main control board and 24 sub-control boards with the same structure and connected with the CPU of the main control board. After the system is powered on, the main control board groups the 120-channel I2C data to be collected, accesses the I2C data collection of the specified address through the I2C interface of the system, or collects the 120-channel I2C data according to the polling sequence set by the software, collects the temperature, voltage and power information data in each channel of the I2C data, and completes the local reporting or remote reporting, thereby successfully completing the collection and reporting functions and not causing electromagnetic interference to other high-speed signals processed and transmitted in the system. The device has simple structure and low cost. The method is convenient to operate, can avoid the electromagnetic interference of the multi-channel I2C data collection to other signals in the complex circuit system, and can improve the efficiency and quantity of data collection.

The present application relates to the technical field of connector, especially to an electric connector assembly. The electric connector assembly comprises a shell, a PCB adapter plate is arranged in the shell, two or more rows of non-ground cables are electrically and fixedly connected to the PCB adapter plate, two or more rows of connecting pads are arranged on the front and back surfaces of the PCB adapter plate respectively, each row of connecting pads comprises a row of signal pads and ground pads, the core wire of the non-ground cable is electrically and fixedly connected to the signal pad on the front surface, the conductive outer sheath is electrically connected to the ground pad on the front surface, the signal pad and the ground pad on the back surface are used for being electrically connected to the corresponding terminals of a PCB female plate or being electrically connected to the corresponding terminals of an adapter socket and then being electrically connected to the PCB female plate, the PCB adapter plate is internally arranged with a conductive circuit to correspondingly connect the connecting pads on the front and back surfaces of the PCB adapter plate, and the electric connector assembly further comprises a load bottom support which is locked and connected to the shell. The electric connector assembly can realize multi-row high-density wiring and greatly improve the performance of the connector.

The utility model relates to the technical field of medical treatment, in particular to a medical endoscope wireless isolation protection device which comprises a transmitting end and a receiving end. The transmitting end comprises an image sensor module, a high-speed serializer and a millimeter wave wireless transmitting module which are connected in sequence; the receiving end comprises a millimeter wave wireless receiving module, a high-speed deserializer, an image processing unit and a display storage module which are connected in sequence; a traditional copper cable is replaced by millimeter wave wireless transmission, high-speed data transmission is achieved, a physical electrical isolation barrier is established, a ground loop and electromagnetic interference of traditional wired transmission are eliminated, meanwhile, a high-speed serial interface is adopted, the number of data lines is reduced during transmission, and signal attenuation is reduced.

The utility model discloses a plasma generator and refrigeration equipment, the plasma generator comprises an insulation support, and an electromagnetic shielding member and an ionization unit which are arranged on the insulation support, the electromagnetic shielding member and the insulation support are combined to form an electromagnetic shielding cavity, and the ionization unit is arranged in the electromagnetic shielding cavity. The ionization unit comprises at least one group of collector modules and electrode modules which are oppositely arranged at intervals, and the collector modules and the electrode modules are matched to ionize air and generate flowing airflow. According to the utility model, the electromagnetic shielding cavity formed by the electromagnetic shielding member and the insulating support can effectively prevent electromagnetic interference caused to external equipment or parts when the ionization unit works, thereby improving the use safety.

The utility model relates to the technical field of vehicle-mounted electronic equipment, especially relates to a rod-shaped interactive intelligent vehicle-mounted terminal, including terminal main body, it is the core processing and control center installation carrier of entire vehicle-mounted terminal, the interface module is integrated to one side of terminal main body, is used for realizing the access and data interaction of external equipment, the two sides of interface module on terminal main body are provided with mounting ear along the axis symmetry of terminal main body, and mounting hole is set up on mounting ear, is used for cooperation fastener and realizes the fixation of terminal and vehicle-mounted structure, the interface module outside symmetry is provided with connecting assembly, and connecting assembly is provided with connecting rod, connecting rod is outwardly extended in the rod shape, and the end is cooperated and is installed with interactive device, is used for receiving user operation instruction and will instruction transmission to terminal main body, realizes the two -way interaction of user and terminal, the utility model is applicable to the vehicle-mounted intelligent upgrading demand of various passenger cars, commercial vehicle, provides stable, convenient vehicle-mounted interactive experience for the user.

The utility model discloses a remote monitoring device for constructional engineering management, which relates to the technical field of monitoring devices, and comprises a mounting bracket, the side wall of the mounting bracket is fixedly connected with a rain baffle, the bottom of the rain baffle is fixedly connected with a shielding shell through an adjusting mechanism, a supporting plate is inserted in a cavity of the shielding shell, and the supporting plate is fixedly connected with the side wall of the mounting bracket. The bottom of the supporting plate is fixedly connected with a monitoring device, one end of the shielding shell is fixedly connected with a transparent cover through an opening, and the inner wall of the transparent cover is fixedly connected with an electromagnetic shielding coating film. The mounting bracket provided by the utility model is convenient to disassemble, separate and re-mount on the basis of realizing electromagnetic interference prevention on the remote monitoring device, so that the problem that the remote monitoring device for constructional engineering management is easily influenced by electromagnetic interference generated by construction site equipment during use is solved; and rapid disassembly and separation for maintenance and re-installation are not convenient.

This invention relates to the field of spacecraft power technology, and in particular to a space power system with controllable power flow and its control method. It includes a spacecraft primary bus, a power electronic converter with controllable power flow, an energy storage unit, a logic control unit, a load, and a power distribution switch. The positive terminal of the spacecraft primary bus is connected to one end of the power distribution switch and one input terminal of the power electronic converter with controllable power flow. One end of the load is connected to the other end of the power distribution switch. The other input terminal of the power electronic converter with controllable power flow is connected to the other end of the load and the negative terminal of the spacecraft primary bus. The input terminal of the energy storage unit is connected to the output terminal of the power electronic converter with controllable power flow. The logic control unit is used to collect the voltage at the positive and negative terminals of the spacecraft primary bus and the current of the load. This invention features high power density, fast dynamic response, simple circuit structure, and avoids severe electromagnetic interference.

The utility model provides an impedance matcher and electronic equipment, and relates to the technical field of radio frequency. The impedance matcher comprises a shell, an isolation plate, an impedance matching assembly, a control assembly and a fan assembly. The shell is provided with an accommodating cavity. The isolation plate is arranged in the accommodating cavity and is used for isolating the accommodating cavity into a first sub-cavity and a second sub-cavity; the impedance matching assembly is arranged in the first sub-cavity. The control assembly is used for adjusting the matching impedance value of the impedance matching assembly, the fan assembly is at least used for cooling the control assembly, the control assembly and the fan assembly are both arranged in the second sub-cavity, and the control assembly is connected with the impedance matching assembly through an isolation plate. According to the invention, electromagnetic shielding in the impedance matcher can be effectively realized.

The utility model discloses a portable gas monitoring alarm device, including the upper cover, the bottom screw thread seal fixed of upper cover has the intermediate casing, the bottom screw thread seal fixed of intermediate casing has the detection filter cup, the top of upper cover is installed with display component, the inside of upper cover is installed with communication component, the inside top fixed mounting of intermediate casing has the alarm board, the inside intermediate fixed connection of intermediate casing has the battery compartment, the inside assembly of battery compartment has the battery, the outside surface of intermediate casing correspond battery compartment department detachable seal fixed has the storehouse lid, in the utility model, through the screw thread seal connection structure of upper cover, intermediate casing and detection filter cup, realize three -level modularization sealed protection, effectively insulate moisture, dust and corrosive gas invasion, and each functional component is installed in the regional isolation, avoids electromagnetic interference and physical damage, ensures the device in the stable operation in the high -risk environment such as petroleum chemical industry, mine etc.

The utility model discloses a European style electric rear lock with a self-rotation opening function, and relates to the technical field of electric locks. The lock comprises a shell, a bearing positioning piece and an internal transmission system, a gear motor and a rechargeable battery are arranged in the shell, the gear motor drives a gear ring to rotate through a multi-stage gear set, and the gear ring fixes a lock cylinder positioning piece to achieve self-rotation opening of a lock cylinder. The transmission efficiency is optimized and the size of the lock is reduced through precise matching of the gear mounting piece and the bearing positioning piece. The circuit board is integrated with a touch switch, and the decorative plate is lightly touched to trigger unlocking. The rechargeable battery and the gear motor are arranged in a separated cavity mode, electromagnetic interference is avoided, and meanwhile the plug key and the spring are in linkage to provide a power-off emergency mechanical unlocking function. A bearing is fixed in a concave position of the bearing positioning piece, and the lock cylinder positioning piece ensures the axial alignment precision through a positioning hole and a lock cylinder mounting cavity. The intelligent electric lock integrates intelligent operation and efficient transmission, and the problems that a traditional electric lock is large in size, depends on an external power source, and is complex in operation are solved.

This utility model provides a cable tray with rapid cable retraction, including two side support frames. An upper cover plate is detachably connected to the upper part of each side support frame, and a lower cover plate is detachably connected to the lower part of each side support frame. Both the upper cover plate and the lower cover plate are connected to the side support frames via multiple sets of detachable bolts. A receiving unit is provided between the two side support frames for placing cables. A fixing component is provided on one side of the mounting plate, connected to the inner wall of the side support frame, and used to lock the positions of the upper and lower receiving components. This utility model utilizes the fixing component to adjust the distance between the upper and lower receiving components, thereby allowing multiple upper and lower receiving components to receive and fix the cables. Under the action of the upper and lower receiving components, the cables can move quickly with minimal friction, enabling rapid cable retraction.

The utility model discloses a prefabricated cabin of primary and secondary equipment electromagnetic shielding isolation arrangement relates to substation equipment technical field, include: prefabricated cabin shell, the double -deck metal partition that divides the cabin body into primary equipment cabin and secondary equipment cabin and lay in the high -elevation type electrostatic bottom plate of secondary equipment cabin bottom, install primary equipment in the primary equipment cabin, install secondary equipment in secondary equipment cabin, and secondary equipment is fixed on the upper surface of electrostatic bottom plate, the utility model discloses through double -deck metal partition separates primary and secondary equipment cabin, and sets up with electromagnetic shielding function's secondary cable passageway, effectively prevents the influence of electromagnetic interference to secondary equipment. Meanwhile, the high -elevation type electrostatic bottom plate is laid in secondary equipment cabin, avoids static interference, improves the stability and reliability of equipment operation, adopts prefabricated cabin formula structure, and the land area of substation is greatly reduced in intensive design.

The utility model relates to a transformer substation. The transformer substation comprises a transformer substation body, a mounting base, a bearing, a first protection assembly and a second protection assembly. The conductive movable rod is connected and matched with the first baffle assembly, the magnetic piece is arranged on the outer side of the conductive movable rod, and the conductive movable rod is electrically connected with the electromagnetic coil. The second baffle assembly is provided with a storage cavity used for storing magnetorheological fluid, and the electromagnetic coil is electrically connected with the conductive movable rod. The second baffle assembly is used for being in abutting fit with the mounting base so as to prevent external water from entering the position where the bearing assembly is located. The first baffle assembly is wound around the outer side of the second baffle assembly, and the first baffle assembly and the second baffle assembly are oppositely arranged. When the first baffle assembly can move in the direction close to or away from the second baffle assembly under the action of external force, the conductive movable rod can be matched with the magnetic part in a telescopic mode. According to the transformer substation, the anti-collision performance can be dynamically adjusted, excessive interference on the transformer substation body is avoided, and the protection performance is greatly optimized.

This invention discloses an active thermal management system and control method for silicon carbide devices based on aloe vera-inspired stomatal cell microvalves, belonging to the field of active thermal management technology for silicon carbide devices. The active thermal management system includes a hygroscopic phase change working fluid module and a stomatal cell-inspired intelligent control module. The hygroscopic phase change working fluid module includes a heat sink body, a hygroscopic salt solution contained within the heat sink body, and a porous permeable membrane covering the surface of the hygroscopic salt solution for basic passive heat dissipation. The stomatal cell-inspired intelligent control module includes a stomatal cell-inspired microvalves array and a detection and control unit, simulating the diurnal rhythm and stress response mechanism of biological stomata. By adjusting the number of microvalves opening and closing, the water vapor discharge rate is precisely controlled, thereby controlling the heat exchange rate. This invention significantly reduces the average junction temperature of silicon carbide devices and greatly suppresses temperature cycling stress, effectively delaying thermomechanical fatigue failure.

GIS built-in installation structure and measurement method of optical fiber current sensor, the device includes a built-in GIS basin insulator triangular plate mounting base, and a number of consistent polarization maintaining fiber ring and signal transmission unit. The method comprises: 1) using external light source to generate light signal; 2) using polarizer to convert light signal into linearly polarized light; 3) transmitting linearly polarized light through signal transmission unit to polarization maintaining fiber ring, conductor flow in GIS device generates annular magnetic field, polarization maintaining fiber ring under the action of magneto-optic effect makes Faraday rotation of light signal, and the light signal after Faraday rotation is obtained; 4) using coupling analyzer to convert the light signal after Faraday rotation from polarization state change to light intensity change, and the light intensity signal is obtained; 5) using photoelectric detector to convert light intensity signal into electric signal, and the real-time current value of GIS device internal conductor is obtained, and displayed through current data display. The application realizes efficient and reliable integration of sensor and GIS device.

The utility model relates to a VGA male socket connector in the connector technical field, which comprises a hardware shell, a plastic main body and a hardware terminal, the surface of the plastic main body is provided with hardware, one end of the hardware terminal in the horizontal direction is connected with a conductor of a cylindrical structure, one end of the hardware terminal in the vertical direction is in a flat structure, and the other end of the hardware terminal in the vertical direction is connected with the plastic main body. A groove for reducing the surface volume of the hardware terminal is formed in one end of the hardware terminal, which is of a flat structure; the limiting structure is a convex point which is bulged towards one end; according to the utility model, two salient points are respectively stamped on two sides of the hardware shell of the connector through stamping, so that when the connector is assembled with an external mechanism, the distance between the control panel and the connector can be regulated and controlled through the heights of the salient points between the mechanism panel and the connector, that is, when the mechanism panel is locked with the connector, the control panel is locked with the connector through the salient points. And the panel is pressed by the salient points after being contacted with the salient points, so that the panel cannot move forwards any more, and the distance between the panel and the connector is accurately ensured.

This invention discloses a multi-position independently controllable device and method for testing the lifespan of buttons in household appliances. The device includes a movable base, a dual-rotation support mechanism, a lifting adjustment unit, and a multi-cylinder independent testing unit. The dual-rotation structure allows for 180° forward / backward and 90° left / right posture adjustment, with a lifting stroke of 75mm~530mm. Each cylinder is independently equipped with a pressure regulating valve, a solenoid valve, and a counting unit, allowing for individual adjustment of force, frequency, and counting. The power supply system is independently isolated. The method employs upright product clamping, multi-position alignment, and parallel testing of multiple buttons; a single button failure does not affect the overall operation. This invention eliminates the need for inverting the product, realistically simulates usage posture, has a wide range of applications, allows for rapid product changeover, and offers high testing accuracy and efficiency, making it suitable for button lifespan testing in various household appliances.

The application relates to the technical field of refrigerator air pressure switches, in particular to a refrigerator air pressure switch and a refrigerator. The refrigerator air pressure switch comprises a shell, a fixed electrode, a movable electrode and at least one connecting point, the shell has a cavity and is used for being mounted to a cabinet; the fixed electrode is fixedly mounted in the shell and divides the cavity into a first cavity and a second cavity, the second cavity is used for being communicated with the inside of the cabinet; the movable electrode is arranged in the second cavity and comprises a fixed ring and a movable piece, the fixed ring is fixed to the shell, the movable piece is located in the inner ring of the fixed ring and is arranged in a spaced mode with the fixed electrode; the fixed ring and the movable piece are connected through the connecting point; the movable piece can move towards the fixed electrode relative to the fixed ring with the connecting point as the moving point and change the distance between the movable piece and the fixed electrode in response to the pressure change in the second cavity. The application can improve the stability and reliability of the refrigerator air pressure switch in controlling the opening of the door.

The invention provides a submarine cable deformation monitoring system and method. The system comprises a submarine cable, a self-sensing optical cable of an ultra-weak fiber grating, a wavelength demodulation device and a deformation reconstruction device. When the submarine cable is in a straightened state, the wavelength demodulation device is used for acquiring first wavelength information sensed by the self-sensing optical cable of the ultra-weak fiber grating and transmitting the first wavelength information to the deformation reconstruction device; when the submarine cable is in a bending state, the wavelength demodulation device is used for acquiring second wavelength information sensed by the self-sensing optical cable of the ultra-weak fiber grating and transmitting the second wavelength information to the deformation reconstruction device; the deformation reconstruction device is used for determining the first wavelength information as an initial wavelength and determining the second wavelength information as a deformation wavelength; determining bending data of the submarine cable according to the initial wavelength and the deformation wavelength through a preset analysis algorithm; through an inversion reconstruction algorithm, the deformation curve of the submarine cable is generated according to the bending data, and the deformation curve is output, so that the monitoring error of submarine cable deformation is reduced.

The utility model discloses a socket connector, plug connector and connector assembly relate to electric connector technical field, wherein, socket connector includes shell, and the shell is equipped with the insertion slot, female terminal module is equipped with a plurality of, a plurality of female terminal module is side by side arrangement in insertion slot, and every female terminal module includes female end shielding shell and the female terminal body of being arranged in the inside of female end shielding shell, female end shielding shell is equipped with the insertion port, and one end of female terminal body is exposed in insertion port to be inserted with male terminal body, and the inner wall of insertion slot and female end shielding shell interval arrangement form insertion space, and insertion space is used to insert the insertion part of plug connector. The utility model provides technical scheme can realize the simultaneous connection of multiple equipment, reduce the occupied volume of connector, and avoid the electromagnetic interference between multiple female terminal body, ensure signal transmission quality.

The invention discloses a plastic package silicon carbide power semiconductor module, which relates to the technical field of electronic components and comprises a substrate, a silicon carbide wafer, a plastic package body, power pins, signal pins, a fault detection module, a fault communication module and a linkage protection module. The silicon carbide wafer is arranged on the substrate, and the pins are oppositely arranged on different sides; the plastic package body packages internal devices, and all functional modules are integrated on the substrate. The fault detection module captures various fault signals such as over-current and over-voltage signals in a full-dimension mode and converts the signals into electric signals. The fault communication module establishes two-way communication with an external master controller through a special pin, stably transmits fault data and receives a control instruction; and the linkage protection module constructs closed-loop control, synchronously triggers hardware protection and fault feedback, and executes hierarchical processing. Signal interference is avoided through structure optimization, communication reliability and module adaptability are improved, safe and stable operation of the power conversion system is guaranteed, and the power conversion system is suitable for high-frequency and high-voltage scenes such as electric automobiles and photovoltaic power generation.

This utility model relates to the field of connectors, and more particularly to a power signal integrated socket, comprising a core with several copper pins mounted on its inner side. The core includes a threaded connection portion and an integrally formed flange portion at one end of the threaded connection portion. A nut is threadedly connected to the threaded connection portion, and a waterproof gasket is fitted on the outer side of the threaded connection portion between the nut and the flange portion. In this power signal integrated socket, the flat portion of the threaded connection portion mates with a plug slot and a retaining slot, facilitating quick alignment and insertion of the plug. The threaded connection between the threaded connection portion and the nut is simple to operate and reliably fixed. Furthermore, the flange portion fits snugly against the inner wall of the panel, and the nut contacts the outer wall of the panel, achieving stable installation.

The application relates to the technical field of connectors, in particular to a PCB adapter plate and a groundless high-speed cable connector. The groundless high-speed cable connector comprises a PCB adapter plate and two or more rows of groundless cables electrically and fixedly connected to the PCB adapter plate. The front and back surfaces of the PCB adapter plate are respectively provided with two or more rows of connecting pads arranged in a row in the longitudinal direction and arranged side by side in the transverse direction. Each row of connecting pads comprises a row of signal pads and ground pads. The core wires of the groundless cables are electrically and fixedly connected to the signal pads on the front surface, the conductive outer sheath is electrically connected to the ground pads on the front surface, and the signal pads and the ground pads on the back surface are used for abutting and electrically connecting corresponding terminals of an external connector. The PCB adapter plate is internally provided with conductive circuits to correspondingly connect the connecting pads on the front and back surfaces of the PCB adapter plate. The groundless high-speed cable connector can realize multi-row high-density wiring and greatly improve the performance of the connector.

The utility model provides a radio frequency power supply device and electronic equipment, and relates to the technical field of radio frequency. The radio frequency power supply device comprises a shell, an isolation plate assembly, a radio frequency assembly, a power supply assembly and a control assembly. The shell is provided with an accommodating cavity. The isolation plate assembly is arranged in the containing cavity and used for isolating the containing cavity into a first sub-cavity, a second sub-cavity and a third sub-cavity. The radio frequency assembly is arranged in the first sub-cavity. The power supply assembly is arranged in the second sub-cavity. And the control assembly is at least used for controlling the radio frequency assembly to generate radio frequency electric energy and is arranged in the third sub-cavity. The power supply assembly is at least used for providing electric energy for the radio frequency assembly and the control assembly. According to the invention, electromagnetic shielding in the radio frequency power supply device can be effectively realized.

This application provides a ring transmission system, which includes a first transmission line, a second transmission line, a third transmission line, a fourth transmission line, and an optical fiber. The first transmission line includes a first stator that is at least partially spliced ​​together sequentially. The second transmission line is spaced apart from and opposite to the first transmission line along a first direction, and includes a plurality of second stators that are at least partially spliced ​​together sequentially. The third transmission line includes a plurality of third stators that are at least partially spliced ​​together sequentially, with the third stator at the beginning of the transmission direction spliced ​​to the first stator and the third stator at the end of the transmission direction spliced ​​to the second stator. The fourth transmission line is spaced apart from and opposite to the third transmission line along a second direction, and includes a plurality of fourth stators that are at least partially spliced ​​together sequentially, with the fourth stator at the beginning of the transmission direction spliced ​​to the second stator and the fourth stator at the end of the transmission direction spliced ​​to the first stator. The optical fiber connects the first stator, the third stator, the second stator, and the fourth stator in series.