268 results about "Magnetic isolation" patented technology

The invention relates to the technical field of new energy grid connection, in particular to a new energy grid-connected inverter system based on a double-stator synchronous motor interface, which comprises a three-phase inverter and a double-stator synchronous motor, the double-stator synchronous motor comprises a first stator, a rotor and a second stator. Planar air gaps exist between the rotor and the first stator and between the rotor and the second stator. The rotor comprises a first rotor and a second rotor which are rigidly connected, the first rotor is axially adjacent to the first stator, the second rotor is axially adjacent to the second stator, and a magnetic isolation ring is arranged between the first rotor and the second rotor; each of the first stator and the second stator comprises a stator core and an armature winding, the first rotor comprises a first rotor core, an excitation winding and a starting winding, and the second rotor comprises a second rotor core and a permanent magnet. According to the invention, the double-stator configuration can realize voltage transformation and frequency conversion functions, and can solve the problems of reduced power grid inertia, insufficient short-circuit capacity, aggravated broadband oscillation risk and the like caused by grid connection of large-scale new energy through power electronic equipment.

The pressure release valve comprises a shell and a fixing sleeve arranged on the shell, an installation cavity is formed in the shell, an electromagnetic coil assembly is arranged in the installation cavity, the magnetic isolation sleeve is inserted in the installation cavity, the magnetic isolation sleeve is connected between the shell and the fixing sleeve in an abutting mode and isolates the installation cavity, and the electromagnetic coil assembly is arranged in the magnetic isolation sleeve. A movable valve element is arranged on the magnetism isolating sleeve in a sliding mode, and the end of the movable valve element is connected with a sealing piece.

The invention discloses a double-frequency phase independent regulation and control metasurface unit and an application method. The metasurface unit comprises a dielectric substrate; the two sides of the dielectric substrate are covered with a first metal layer and a second metal layer respectively. Each of the first metal layer and the second metal layer comprises a metal patch main body and a phase regulation and control structure, the center of the metal patch main body is provided with a circular hollow, and the phase regulation and control structure is arranged in the circular hollow; the phase regulation and control structure of the first metal layer and the phase regulation and control structure of the second metal layer are in 180-degree rotational symmetry; the double-connecting-ring structure is an axisymmetric structure; an open circular split ring resonator is arranged in the double-connecting-ring structure, and an electromagnetic isolating ring group is arranged in the open circular split ring resonator; according to the invention, 360-degree independent phase control on electromagnetic waves at a low-frequency band and a high-frequency band is realized.

The utility model provides an automatic collection structure and recovery equipment, the automatic collection structure is used for collecting magnetic identification sheets adsorbed on the surface of an object to be detected, and the automatic collection structure comprises a movable seat, and a guide plate, a guide seat and a driving device which are respectively arranged on the same side surface of the movable seat; the guide plate forms a collection channel of the magnetic recognition sheets, the width of the collection channel is gradually reduced from the inlet to the outlet, and the outlet of the collection channel is connected with the inlet of the guide seat; a collecting position is arranged at the end, away from the guide plate, of the guide seat, a driving device and a collecting box are arranged on the two opposite sides of the collecting position respectively, and the driving device is used for pushing the magnetic recognition pieces located on the collecting position into the collecting box so that the magnetic recognition pieces can be separated from the surface of the to-be-detected object, and therefore the magnetic recognition pieces are collected in the collecting box; and the movable seat, the guide plate, the guide seat and the driving end of the driving device are all made of magnetic isolation materials. The automatic collection structure and the recovery equipment provided by the utility model are simple in structure, low in cost and capable of efficiently recovering the magnetic identification sheets.

The invention discloses a subminiature three-coaxial differential self-locking high-temperature-resistant assembly and a connector, and relates to the technical field of radio frequency connectors, the subminiature three-coaxial differential self-locking high-temperature-resistant assembly comprises a shell, an outer shield is arranged in the shell, an outer insulator is arranged on the inner side of the outer shield, and an inner shield is arranged on the inner side of the outer insulator. According to the subminiature three-coaxial differential self-locking high-temperature-resistant assembly and the connector, efficient electromagnetic isolation is formed by the double shielding layers composed of the outer shielding layer and the inner shielding layer and the inner conductor, radio frequency leakage and signal crosstalk can be remarkably inhibited through cooperative use of the structures, the problem that a traditional double-coaxial structure is insufficient in shielding is solved, and meanwhile, the connector is high in reliability. The inner shielding layer and the outer shielding layer of the twisted pair are respectively welded with the inner shielding layer and the outer shielding layer, the continuity of the shielding effect is ensured, the connecting seat is made by sintering glass powder and is provided with a conductive silver powder sealing ring, the stability at high temperature is ensured, good grounding continuity is also provided, and the overall electromagnetic compatibility performance is further enhanced.

The utility model provides a spring needle magnetism isolating connecting device and a glove knitting machine, and belongs to the technical field of knitting machinery. The spring needle magnetism isolating connecting device comprises a spring needle body, a magnetism isolating piece and an attraction piece. One end of the magnetic isolation piece is fixedly connected to the spring needle body, the other end of the magnetic isolation piece is fixedly connected to the attraction piece, the attraction piece can be magnetically attracted to the magnetic bar of the needle selector, and therefore attraction of the spring needle body is completed, the magnetic isolation piece isolates magnetic force emitted by the magnetic bar of the needle selector from the spring needle, and the attraction piece is demagnetized when the spring needle body needs to be loosened. The residual magnetic force of the attraction piece is smaller than the first preset value, the attraction piece cannot affect the spring needle body, the spring needle body can be quickly loosened, the structure is simple, and operation is easy and convenient.

The utility model relates to the technical field of rotor punching sheets, in particular to a rotor punching sheet structure, which comprises a rotor punching sheet and a stator, the stator is arranged on the outer side of the rotor punching sheet, a plurality of groups of V-shaped magnetic steel grooves are arranged on the rotor punching sheet, four V-shaped magnetic steel groove positions are oppositely arranged on the edge of each V-shaped magnetic steel groove, outer diameter air magnetic isolation grooves are arranged at two ends of each V-shaped magnetic steel groove, and the outer diameter air magnetic isolation grooves are arranged in the outer diameter air magnetic isolation grooves. A plurality of V-shaped magnetic steel grooves are formed in the rotor punching sheet, magnetic steel bodies located at linear groove bodies are placed in the V-shaped magnetic steel grooves, an inner magnetic bridge is arranged between every two adjacent V-shaped magnetic steel grooves, a plurality of outer magnetic bridges located on the outer sides of the V-shaped magnetic steel grooves are arranged on the outer side of the rotor punching sheet, and de-weight holes and V-shaped magnetic steel grooves with large openings in pin hole punching sheets are formed in the rotor punching sheet in an annular array mode. The reluctance torque of the motor can be generated, and the output torque of the motor can be increased; the punching sheet body is provided with the air magnetic isolation grooves, the pole radian coefficient of the magnetic pole can be adjusted, and magnetic leakage of the magnetic steel can be reduced.

The utility model discloses a motor magnetism isolating baffle with a quick installation function, which belongs to the technical field of motors and comprises a baffle body, a rotating shaft hole and an installation mechanism, the rotating shaft hole is arranged at the center of the outer wall of the baffle body, and the installation mechanism comprises an annular positioning plate which is sleeved on the outer surface of the baffle body. An annular mounting plate is fixedly connected to the outer wall of the annular positioning plate, a plurality of mounting holes are formed in the outer wall of the annular mounting plate at equal intervals, the baffle body is a motor magnetic isolation baffle, a rotating shaft hole is used for penetrating of a rotating shaft, and the annular mounting plate is conveniently mounted on a motor stator end plate through the mounting holes; and the baffle body is conveniently positioned through the annular positioning plate on the annular mounting plate, so that the baffle body is mounted and fixed, the baffle body is prevented from being directly fixed through bolts, and the mounting convenience and the use safety of the baffle body are improved.

The application discloses a tangential rotor lamination and a rotor structure, and relates to the technical field of permanent magnet motors. The rotor lamination comprises a magnetic isolation hole, which is arranged on a lamination body and has an opening at the bottom; a stainless steel key is arranged in the magnetic isolation hole and above the opening; a first magnetic isolation bridge is arranged on both sides of the magnetic isolation hole and has a structure of being wide at the top and narrow at the bottom; a second magnetic isolation bridge is arranged on both sides of the magnetic isolation hole and connected with the bottom of the corresponding first magnetic isolation bridge, and the cross section of the second magnetic isolation bridge is in a strip shape; a third magnetic isolation bridge is arranged on both sides of the magnetic isolation hole and connected with the bottom of the corresponding second magnetic isolation bridge, and the cross section of the third magnetic isolation bridge is in a strip shape; and a bearing table extending outward is formed between the second magnetic isolation bridge and the third magnetic isolation bridge. In combination with reasonable size design of the magnetic isolation hole and the surrounding structure, the magnetic resistance of the key region is increased and the magnetic circuit distribution is optimized according to the magnetic resistance regulation principle, the magnetic flux passing through the air closed is significantly reduced, and the inter-pole leakage magnetic is greatly reduced.

The present application relates to the technical field of flow control valve, and belongs to a flow control valve without magnetic isolation ring, which comprises a valve body assembly, a fluid passage and a control assembly for controlling the opening and closing of the fluid passage are arranged in the valve body assembly, the fluid passage is arranged in a rotary manner, the control assembly is located at the rotary part of the fluid passage, the control assembly comprises a stop iron, the stop iron is connected to the valve body assembly, a groove structure is arranged on the outside of the stop iron, and a fourth blind hole and a fifth blind hole arranged in a stepped manner are arranged on the inside of the stop iron. Based on the unique electromagnetic structure of the stop iron, the magnetic circuit breaker structure is integrated, and the magnetic circuit structure is optimized. The magnetic field strength at the air gap of the electromagnetic valve is improved to obtain greater electromagnetic force; the lightweight structure design of the electromagnetic valve can obtain faster response speed under the driving of greater electromagnetic force.

A rotor punching sheet structure disclosed by the present invention comprises a support sheet and a magnetic conductive ring, the magnetic conductive ring surrounds the support sheet, the magnetic conductive ring is provided with a plurality of magnet installation grooves, the magnet installation grooves are internally provided with magnet installation structures, and the plurality of magnet installation structures are circumferentially and uniformly distributed by taking the support sheet as a center. The magnet mounting structure comprises a magnetic conduction strip, a first permanent magnet, two second permanent magnets and two magnetic isolation strips, the first permanent magnet is clamped with the side, away from the supporting piece, of the magnetic conduction strip, the second permanent magnets are located on the side, close to the supporting piece, of the first permanent magnet, and the magnetic isolation strips are clamped with the magnetic conduction ring and the magnetic conduction strip. The supporting piece is provided with a plurality of magnetic isolation protruding parts. The beneficial effects of the invention are that the magnetic flux leakage can be effectively reduced, the clamping with the magnetic conductive ring and the magnet installation structure in the circumferential direction can be ensured, the functions of optimizing the magnetic flux path and supporting the structure can be realized, and the motor has important significance for improving the working performance of the motor.

This application relates to the field of automotive radar technology, disclosing an antenna array and an automotive radar. The antenna array includes a substrate, an electromagnetic isolation structure, and a feeding assembly. The substrate is provided with a transmitting part and a receiving part. The transmitting part includes multiple transmitting radiating elements arranged to form a transmitting radiating array. The receiving part includes multiple receiving radiating elements arranged to form a receiving radiating array. The electromagnetic isolation structure is disposed between adjacent radiating elements to suppress electromagnetic coupling between the radiating elements. The feeding assembly is disposed on the substrate and is connected to both the transmitting radiating array and the receiving radiating array. Through the above method, this application embodiment can block the coupling path of electromagnetic waves, thereby improving the overall isolation of the array.

The invention particularly relates to a cable line fault detecting and positioning system for an intelligent power distribution network ring main unit, and relates to the technical field of intelligent power distribution network fault detection. A multi-dimensional feature extraction and intelligent diagnosis module; a health state evaluation module; and a self-adaptive calibration compensation and control module. According to the invention, a passive acquisition mode is combined with steady-state conventional monitoring and transient double-trigger high-speed recording, so that hard fault related data can be accurately captured; the active test mode automatically injects a standard signal at a power grid load trough, flexibly captures soft degradation characteristics such as element aging and parameter drift, and the magnetic isolation design avoids interference to the power grid.

A first blind hole, a second blind hole and a third blind hole are formed in a valve body in the axial direction, a plurality of first through holes are evenly formed in the side wall of the second blind hole, a valve element is installed in the second blind hole in an axial moving mode, and a plurality of second through holes are evenly formed in the side wall of the third blind hole. A first pressure guiding hole, a second pressure guiding hole and a fourth blind hole are sequentially formed in the yoke, the stop iron is fixedly arranged in the yoke through the mounting plate, a second through hole and a fifth blind hole are formed in the stop iron, a magnetic circuit optimization structure is arranged on the outer surface of the stop iron, the armature is arranged in the fifth blind hole, and a film is arranged between the armature and the inner wall of the fifth blind hole. The ejector rod penetrates through the second through hole, the valve seat is assembled in the third blind hole in a sealed mode, and a spring is connected between the side wall of the fourth blind hole and the valve seat. Through the design of a non-magnetic-isolation-ring magnetic circuit and the variable spring, efficient driving, reliable sealing and switch and proportion control integration of the electromagnetic valve are achieved, the structure is compact, and adaptability is high.

The invention discloses a direct-acting electromagnetic valve, and belongs to the technical field of vehicle suspension systems. The electromagnetic valve comprises a valve body assembly, a static magnetic assembly, a valve seat assembly, a movable magnetic assembly and an electromagnetic driving assembly. The key point is that a damping limiting structure is arranged between the peripheral side of the moving magnetic assembly and the inner wall of the valve body assembly. When the electromagnetic valve is powered on and opened, and the movable magnetic assembly moves to the maximum opening position, the damping limiting structure bears the impact force and limits the displacement of the movable magnetic assembly, so that a preset magnetic isolation gap is always kept between the second end of the movable magnetic assembly and the static magnetic assembly. Through non-contact limiting, metal impact noise is eliminated; by means of the constant magnetic isolation gap, long-term stability of electromagnetic force is guaranteed, and the problems that in the prior art, noise is large, the electromagnetic force is attenuated, sealing is poor, and the stroke is not stable are systematically solved.

The utility model discloses an internet-of-things monitoring system for a wind generating set in the technical field of wind power generation detection equipment. The internet-of-things monitoring system comprises a cabin terminal, a tower drum terminal and a double-terminal communication module, the cabin terminal comprises a first shell with a built-in first control mainboard, and a meteorological data interface group is arranged on the surface of the first shell and comprises at least one RS-485 communication interface and two groups of analog input interfaces arranged side by side; the tower drum terminal comprises a second shell with a built-in second control mainboard, the surface of the second shell is provided with an electric power monitoring interface group, and the electric power monitoring interface group comprises a Modbus communication interface and an optical fiber transceiving interface; the double-terminal communication module is connected with the cabin terminal and the tower drum terminal through a magnetic isolation CAN bus communication link. According to the utility model, through a double-terminal distributed architecture, multi-protocol interface integration and magnetic isolation communication design, the reliability, expansibility and maintainability of the wind turbine generator monitoring system are significantly improved, and the situation of data congestion caused by complex working conditions is avoided.

The invention relates to the technical field of motors, in particular to a unit complementary type magnetic flux reverse rotation linear motor which comprises a rotor assembly and a stator assembly, and an air gap is formed between the stator assembly and the rotor assembly. The rotor assembly comprises a plurality of rotors stacked in the axial direction, a plurality of salient pole teeth are evenly distributed on the peripheries of the rotors, and the salient pole teeth of every two adjacent rotors are arranged in a staggered mode. The stator assembly comprises a plurality of annular stator units arranged in the axial direction, and every two adjacent stator units are arranged in a staggered mode. Each stator unit comprises a magnetic isolation block, a stator iron core assembly, a permanent magnet and an armature coil. Natural decoupling of rotation and linear freedom degrees is achieved, the high torque density and the high thrust density can be guaranteed, meanwhile, the manufacturing difficulty is lowered, and the control strategy is simplified.

The invention relates to the field of motors, and discloses a magnetic suspension doubly salient permanent magnet motor, which comprises a rotating assembly, and is characterized in that the rotating assembly comprises a rotor shaft and a stator part arranged at the outer side of the rotor shaft; the radial suspension assembly is arranged on the outer side of the rotor shaft; the axial suspension assembly is arranged on the outer side of the rotor shaft; the permanent magnet is located between the radial suspension assembly and the axial suspension assembly; the equipment combines the characteristics of a magnetic bearing and a doubly salient motor, due to the magnetic isolation effect of the permanent magnets, the armature magnetic field of the motor and the magnetic suspension bearing control magnetic field do not influence each other, independent control of torque and suspension force can be realized without adding a decoupling algorithm, the advantages of no mechanical wear, long service life and the like of the magnetic suspension bearing are exerted, and the magnetic suspension bearing is more stable in performance. And the purposes of low energy consumption and high efficiency of the doubly salient motor are achieved.

The application provides a motor, and belongs to the technical field of motors.The motor comprises a shell, motor windings and a magneto-electric encoder arranged on the inner and outer sides of the shell respectively; the motor further comprises a protection structure arranged between the motor windings and the magneto-electric encoder, and the protection structure is configured to protect the magneto-electric encoder; the protection structure comprises a magnetic isolation part and a heat insulation part; the magnetic isolation part is configured to shield the alternating magnetic field generated by the motor windings from being transmitted to the magneto-electric encoder to protect the magneto-electric encoder, and the heat insulation part is configured to block the heat generated by the motor windings from being transmitted to the magneto-electric encoder to protect the magneto-electric encoder doubly. The protection structure composed of the heat insulation part and the magnetic isolation part can protect the magneto-electric encoder in the motor doubly, and the stability of the motor during operation is improved as a whole.

The invention discloses a dual three-phase asymmetric Halbach array permanent magnet fault-tolerant motor, and belongs to the field of permanent magnet motor design. The stator comprises a stator core, double three-phase centralized windings, armature teeth and fault-tolerant teeth. The rotor comprises a rotor iron core, asymmetric Halbach array permanent magnets and magnetic barriers, the semi-open magnetic barriers with openings facing the air gap side are arranged on the outer circumference of the rotor iron core, and the asymmetric Halbach array permanent magnets are arranged on the iron core in the circumferential direction. The tangential magnetized short permanent magnet is arranged in the magnetic barrier semi-open slot, and the tangential magnetized long permanent magnet extends to the bottom of the magnetic barrier from the magnetic barrier semi-open slot and is partially embedded in the magnetic barrier in the form; and two adjacent magnetic barriers are isolated by a magnetic isolation bridge. The leakage flux path is subjected to shunting regulation and control, so that the end leakage flux of the permanent magnet is reduced, and the effective flux utilization rate and the torque density of the air gap are improved; according to the invention, high torque density and low magnetic flux leakage are considered, the continuous output capability of the motor under a single-phase / multi-phase fault condition is enhanced, and a driving scene with a high reliability requirement is satisfied.

The invention relates to an impact machine temperature control method based on multi-standard dynamic mapping and scene perception. The method comprises the following steps: acquiring original temperature data of a tested device through a preset thermal, electric and magnetic three-in-one isolated temperature acquisition device; and constructing a standard adaptation rule base based on dynamic mapping of the original temperature data, and obtaining a result of matching of multi-source data conversion and a target format through a standard factor algorithm. Performing standardized verification on the data by adopting multi-scale anomaly detection and cross-standard verification; analyzing the characteristics of the test interface through a scene recognition module, generating a scene recognition result, driving a mode switching rule, and outputting scene-adaptive temperature control adjustment data; generating a dynamic temperature control instruction based on an adaptive strategy, and driving a heat flow module through a multi-mode actuator to carry out standard state temperature control on a tested device; multi-standard diagnosis results are generated through an abnormity diagnosis engine, temperature control strategy parameters are dynamically adjusted through an online updating mechanism, and closed-loop control over a temperature control device is achieved.

The embodiment of the invention discloses a clothes processing device which comprises a box body, a clothes containing barrel and a wireless energy transmission structure, the wireless energy transmission structure comprises two wireless energy transmission assemblies, and the two wireless energy transmission assemblies are fixed relative to the box body and the clothes containing barrel respectively; each wireless energy transmission assembly comprises a coil, at least one wireless energy transmission assembly further comprises a magnetic isolation piece, a magnetic isolation groove is formed in the side, facing the other wireless energy transmission assembly, of each magnetic isolation piece, and the coils are located in the magnetic isolation grooves and connected with the magnetic isolation pieces. According to the wireless energy transmission structure, the coil of the wireless energy transmission assembly is located in the magnetic isolation groove of the magnetic isolation piece, the magnetic line of force can be restrained from the peripheral side of the coil and the side, away from the other wireless energy transmission assembly, of the coil, the magnetic line of force is restrained to a greater extent, and the eddy current influence of the magnetic line of force on other devices except the wireless energy transmission structure can be better improved. And the magnetic isolation piece can also be used for realizing a magnetic gathering effect of the wireless energy transmission assembly, so that a magnetic field is concentrated between the coil and a coil of another wireless energy transmission assembly, and the wireless charging efficiency is improved.

The application discloses an electromagnetic valve, which comprises a valve body and a pilot head assembly arranged on the valve body, wherein the pilot head assembly comprises a magnetic isolation sleeve, a static iron core and a dynamic iron core; the dynamic iron core has opposite upper and lower end portions; the lower end portion is provided with a mounting groove; a rubber plug is movably arranged in the mounting groove; the rubber plug can slide along the axial direction of the mounting groove; the rubber plug can be sealingly matched with a valve port; an installation cavity is arranged in the dynamic iron core; the installation cavity penetrates through the upper end portion and the mounting groove; a sliding rod is slidably arranged in the installation cavity; the rubber plug is fixedly connected to the lower end of the sliding rod; a first elastic member is arranged in the installation cavity; the first elastic member is arranged between the sliding rod and the dynamic iron core; and the first elastic member makes the sliding rod always have a movement trend of approaching the static iron core. Through optimization of the action process of the iron core, the action sensitivity of the dynamic iron core is improved, the flow of the valve port is improved through arrangement of the sliding rod, the electromagnetic valve can meet the requirements of large-flow working conditions, and the coil specification or driving power does not need to be increased.

The invention discloses a magnetizing pull direction self-locking type elastic magnetic conductive block, which utilizes magnetic attraction type one-way self-locking mechanisms such as a magnetic conductive one-way spring bolt, a spring bolt reset spring and a magnetic isolation block to realize the pull direction locking function when the elastic magnetic conductive block is magnetized and the two-way unlocking function when the elastic magnetic conductive block is demagnetized. The defect that the pulling-out force of the suction cup is weakened due to sliding of a magnetic conductive block sliding part when an existing elastic magnetic conductive block is magnetized and pulled is overcome, and the magnetic attraction force of the elastic magnetic conductive block array is overlapped to form the overall pulling-out force of the suction cup. The device can be popularized and applied to the occasions of cable-free mooring, lifting appliances and the like in which the sucking disc is mainly pulled and loaded.

The invention provides a motor rotor, a permanent magnet synchronous motor and an air conditioner, the motor rotor comprises rotor baffle rings and a rotor core clamped between the two rotor baffle rings, each magnetic pole of the rotor core is internally provided with a magnetic steel groove, the length extension direction of each magnetic steel groove is vertical to the d axis of the magnetic pole corresponding to the magnetic steel groove in position, and the magnetic steel grooves are arranged in the magnetic steel grooves. Magnetic steel grooves are formed in the rotor iron core, magnetic steel is assembled in each magnetic steel groove, the magnetic steel is magnetized in the radial direction, and at least one end of each magnetic steel groove penetrates through the outer circumferential wall of the rotor iron core to form a spacing groove; and each first limiting magnetic isolation strip is located between the two rotor baffle rings and is inserted into each air isolation groove in a one-to-one correspondence manner. The magnetic resistance of the end area of the magnetic steel can be improved, the magnetic leakage at the two ends of the length of the magnetic steel is effectively reduced, the counter electromotive force of the motor is improved, the efficiency and stability of the motor are improved, and meanwhile the risk of demagnetization of the end of the magnetic steel is reduced.

The application discloses a charging box, which comprises a shell, a battery, a magnetic isolation sheet and a charging coil, the shell comprises a lower shell and a supporting plate, the lower shell and the supporting plate cooperate to form a containing space, and the supporting plate is formed with a recessed area for containing earphones on a side away from the containing space; the battery, the magnetic isolation sheet and the charging coil are sequentially stacked in the containing space along the depth direction of the lower shell, the charging coil is fixed to a side of the magnetic isolation sheet away from the supporting plate, the battery is fixed to a side of the magnetic isolation sheet facing the supporting plate, and a limiting area is arranged on the inner wall surface of the lower shell and limits the magnetic isolation sheet. In the above manner, the application can simplify the mounting mode of the battery and the charging coil, reduce the mounting difficulty of the battery and the charging coil, and further make the charging box more convenient to assemble.

The utility model discloses a rotor punching sheet, a rotor of a motor and a compressor, a plurality of magnet slotted holes are distributed on the rotor punching sheet, and air gap slotted holes are arranged on the rotor punching sheet at each end of each magnet slotted hole in the extending direction towards the outer edge of the rotor punching sheet. A first magnetic isolation bridge is formed between the first edge of the air gap slotted hole and the outer edge of the corresponding position of the rotor punching sheet, a second magnetic isolation bridge is formed between the second edge of the air gap slotted hole and the corresponding end portion of the corresponding magnet slotted hole, and the extension direction of the second magnetic isolation bridge is inclined towards the rotation direction of the rotor punching sheet. A plurality of rotor punching sheets are laminated to form a rotor iron core, and the rotor comprising the rotor iron core is small in wind resistance during rotation and has enough structural strength.

This invention discloses a large-diameter direct-drive permanent magnet synchronous magnetic isolation locking structure, including a rotor hub. Multiple lamination magnetic isolation fixing blocks are sequentially arranged around the periphery of the rotor hub. A triangular portion extends outward from the center of each lamination magnetic isolation fixing block. Laminations are correspondingly arranged on the outer edge of each lamination, and triangular grooves are formed on the inner side of each lamination corresponding to the triangular portion. A placement groove is formed between two adjacent laminations, and a magnet is correspondingly placed in the placement groove. This invention adopts a single-tooth structure, and locking is achieved through the cooperation between the triangular groove on the lamination and the triangular portion on the magnetic isolation fixing block. This design is convenient to install and also safer and more practical.

The application provides a tissue ablation electrode connector and device. The tissue ablation electrode connector comprises a connector, a storage device and a damage element. The connector has a core needle. The storage device is arranged in the connector and is electrically connected with the core needle. The storage device is used for storing anti-fake information. The core needle is used for connecting an information reading device. The information reading device comprises a data reading circuit and a protection circuit connected with each other. The protection circuit is used for placing the storage device and the core needle in a suspended state through optical isolation communication and magnetic isolation power supply, so as to realize high-voltage isolation and protection of the data reading circuit and prevent high-voltage pulse energy from damaging the data reading circuit. The damage element is arranged in the connector and is connected with the storage device. The damage element is used for damaging the storage device, so as to ensure one-time use of the tissue ablation electrode. The application solves the problem that the existing ablation needle body cannot simultaneously ensure anti-fake and one-time use.

An apparatus and a method for facilitating a first frequency filtering and a second frequency filtering together with non-reciprocal frequency conversion for electromagnetic isolation.