High-temperature superconducting flux pinning guiding traction device for pure electric vehicle

Abstract

A high-temperature superconducting magnetic flux pinning guiding traction device for a pure electric vehicle is equivalent to a linear motor, a hidden electromagnetic long track is arranged at the lower end of a road surface of a road which is charged while driving, the hidden electromagnetic long track is equivalent to a long stator of the linear motor, and a high-temperature superconducting device is arranged at the front end of a chassis of the pure electric vehicle and is equivalent to a short rotor of the linear motor. The hidden electromagnetic long track is composed of a plurality of independent control driving units of the same specification, a superconducting coil is arranged at the lower end of the high-temperature superconducting device and moves forwards close to the reflection type proximity switches, the independent control driving units generate a movable electromagnetic field after being powered on, and the movable electromagnetic field induces the superconducting coil. The front wheels of the pure electric vehicle are in a magnetic suspension state of a magnetic flux pinning effect, the moving electromagnetic field attracts the superconducting coil to move forwards, the vehicle-mounted motor automatically charges the vehicle-mounted lithium battery pack under the traction of external force and the intelligent control of the vehicle-mounted central controller, and the road is charged while the pure electric vehicle runs, so that the passing of any motor vehicle is not affected.

Description

Technical Field

[0001] The invention relates to a high-temperature superconducting material applied to energy-saving and consumption-reducing technology of pure electric vehicles and a magnetic suspension electric vehicle technology, more precisely, to a high-temperature superconducting magnetic flux pinning guide traction device of a pure electric vehicle. Background Art

[0002] At present, the development of pure electric vehicles in my country has been rapid, and it has opened up the international electric vehicle market with its product advantages of low price and good quality; however, the defects of pure electric vehicles such as short driving range, long charging time and inconvenient charging still exist. Lithium battery packs are the main part of pure electric vehicles. The defects of lithium battery packs such as large usage, high cost, large space occupied in the car and increased weight of the car have not been better solved so far.

[0003] The Chinese Patent Gazette discloses an invention application document named "A device for charging while driving an electric vehicle" with application number "2024106653448". Charging while driving an electric vehicle can well solve the charging problem and long-distance driving problem of pure electric vehicles, and can effectively reduce the use of lithium battery packs and reduce the cost of pure electric vehicles. It is an ideal driving and charging solution. However, "A device for charging while driving an electric vehicle" has certain defects. The defect is that the active electromagnetic track raised from the road surface is a dedicated lane for pure electric vehicles to charge while driving, and other vehicles cannot pass freely. The active electromagnetic track raised on the road surface is not compatible with the road, which occupies road resources and increases the road cost of charging pure electric vehicles.

[0004] At present, the industrialization of high-temperature superconductors in my country is constantly improving, and the downstream applications of high-temperature superconducting products are also continuously opening up. The application of liquid nitrogen-cooled high-temperature superconducting materials in maglev trains is in the experimental stage. The automatic suspension and automatic guidance functions of high-temperature superconducting maglev trains are based on the flux pinning effect generated between the high-temperature superconductor and the permanent magnetic track. The high-temperature superconductor is a type-II superconductor in a mixed state. The resistance of the high-temperature superconductor is zero at extremely low temperatures, and the current continuously exists in the superconducting coil. The flux pinning effect of the high-temperature superconductor makes the high-temperature superconductor magnetically suspended above the permanent magnetic track fixed and not easy to fall off. The application of this important feature is of great significance.

[0005] Although the application of high-temperature superconducting technology in maglev electric vehicles is still in its infancy, it is feasible to use the flux pinning effect of high-temperature superconductors in maglev electric vehicles. If high-temperature superconducting technology can solve the charging problems and long-distance driving problems of pure electric vehicles, and can effectively reduce the use of lithium battery packs and further reduce the cost of pure electric vehicles, then maglev electric vehicle technology will definitely be the direction of high-quality development of pure electric vehicles. Summary of the invention

[0006] In order to enhance the downstream applications of high-temperature superconductor products, to overcome the defects of existing pure electric vehicle charging-while-driving technology, and to promote the high-quality development of pure electric vehicles, the present invention discloses a pure electric vehicle high-temperature superconducting flux pinning guide traction device using high-temperature superconducting materials.

[0007] The pure electric vehicle high temperature superconducting flux pinning guide traction device comprises a pure electric vehicle, an on-board motor, an on-board lithium battery pack, an on-board central controller, a charging while driving road, a hidden electromagnetic long track, an electromagnetic track unit, an I-shaped iron core track, an independent control drive unit, an electromagnetic coil, a track circuit board, a DC chopper module, a reflective proximity switch, an infrared communication receiving head, a positive power transmission copper bar, a negative power transmission copper bar, an infrared communication transmitting strip, an inner electric speed regulating pedal, an outer electric speed regulating pedal, an inner speed regulating sensor, an outer speed regulating sensor, a high temperature superconducting block material, a liquid nitrogen insulation box, a liquid nitrogen refrigerator, a parallel four-side elevator and a medium voltage DC power supply station, characterized in that: the pure electric vehicle high temperature superconducting flux pinning traction device is equivalent to a linear motor, and the lower end of the road surface of the charging while driving road is provided with A hidden electromagnetic long track is arranged, which is equivalent to the long stator of the linear motor. A high-temperature superconducting device is arranged at the front end of the chassis of the pure electric vehicle, which is equivalent to the short mover of the linear motor. The hidden electromagnetic long track is composed of multiple independent control drive units of the same specification. A superconducting coil is arranged at the lower end of the high-temperature superconducting device. The superconducting coil moves forward close to multiple reflective proximity switches of the multiple independent control drive units. After the multiple independent control drive units are energized, a mobile electromagnetic field is generated, which induces the superconducting coil. The front wheels of the pure electric vehicle are in a magnetic suspension state of the magnetic flux pinning effect, and the mobile electromagnetic field attracts the superconducting coil to move forward. Under the external force traction of the hidden electromagnetic long track and the intelligent control of the on-board central controller, the on-board motor of the pure electric vehicle can automatically charge the on-board lithium battery pack.

[0008] The charging-while-driving highway is based on existing ordinary highways and expressways as well as all highways inside and outside the city, and a hidden electromagnetic long track is directly installed under the straight lanes, left-turn lanes and right-turn lanes of various highways; the hidden electromagnetic long track is a hidden traction guide track buried under the road surface, the width of the hidden electromagnetic long track is about 30 cm, the height is about 5 cm, and the length is the length of the charging-while-driving highway; on the road surface of the asphalt highway, a long track groove is excavated with a cutting machine and a chiseling tool, the length of the long track groove is the length of the charging-while-driving highway, the width is slightly larger than the width of the hidden electromagnetic long track, and the depth is equal to the height of the hidden electromagnetic long track. The hidden electromagnetic long track is placed at the bottom of the long track groove, and the hidden electromagnetic long track A groove-shaped transparent shell is provided on the surface of the road, which is made of high-strength transparent plastic. Asphalt mixture is filled between the groove-shaped transparent shell and the long track groove. The upper plane of the groove-shaped transparent shell and the upper plane of the asphalt mixture are consistent with the plane of the asphalt road. The groove-shaped transparent shell is tightly attached to the hidden electromagnetic long track, which has the protective effect of preventing rain erosion and rolling damage; the groove-shaped transparent shell is conducive to the transmission of photoelectric signals between the liquid nitrogen insulation box and the hidden electromagnetic long track, and the groove-shaped transparent shell forms a transparent long line mark parallel to the driving and charging highway, which is different from the road surface in color; the driving and charging highway is compatible with ordinary roads and expressways as well as all roads inside and outside the city. Pure electric vehicles share road resources with all other motor vehicles, and the driving and charging highway does not affect the passage of any motor vehicle.

[0009] A parallel four-sided lift is provided at the front lower end of the chassis of the pure electric vehicle, a movable frame is provided at the lower end of the parallel four-sided lift, a reduction motor is provided at the front end of the movable frame, a liquid nitrogen insulation box is installed at the lower end of the movable frame, the liquid nitrogen insulation box is provided with a square cover plate, a square outer shell is provided at the lower end of the square cover plate, a square inner chamber is provided in the middle of the liquid nitrogen insulation box, and in order to ensure good heat preservation of the square inner chamber, an insulating upper vacuum chamber, a lower vacuum chamber, a front vacuum chamber, a rear vacuum chamber, a left vacuum chamber and a right vacuum chamber are provided between the square outer shell and the square inner chamber; a square-shaped high-temperature superconducting block is bonded to the bottom of the square inner chamber with AB glue, a square-shaped liquid nitrogen evaporator is provided above the high-temperature superconducting block, and the liquid nitrogen evaporator is tightly combined with the high-temperature superconducting block, which is beneficial to For heat conduction, a high-pressure liquid nitrogen pipe and a low-pressure suction pipe are arranged at the upper end of the liquid nitrogen evaporator, and the high-pressure liquid nitrogen pipe and the low-pressure suction pipe are led out through the upper vacuum chamber and the pipe holes on the square cover plate; the liquid nitrogen refrigerator comprises a nitrogen compressor, a liquid nitrogen condenser and a cooling fan, a nitrogen compressor is arranged at the front upper end of the chassis, a liquid nitrogen condenser is arranged at the front end of the nitrogen compressor, a cooling fan is arranged between the high-pressure output pipe of the nitrogen compressor and the liquid nitrogen condenser, a high-pressure output pipe of the nitrogen compressor is connected to the input end of the liquid nitrogen condenser, and the nitrogen compressor outputs high-pressure hot nitrogen with a pressure greater than 100Mpa into the liquid nitrogen condenser when working, and the high-pressure hot nitrogen of the liquid nitrogen condenser is cooled by the cooling fan to become liquid nitrogen, and the liquid nitrogen enters the liquid nitrogen evaporator through the high-pressure liquid nitrogen pipe and the capillary tube for evaporation and refrigeration, and the liquid nitrogen evaporator The output end is connected to the low-pressure input end of the nitrogen compressor; the refrigeration temperature of the liquid nitrogen evaporator is below minus 196 degrees Celsius, and the connection surface between the liquid nitrogen evaporator and the high-temperature superconducting block in close contact has good heat conduction, so that the cooling temperature of the high-temperature superconducting block is minus 196 degrees Celsius. The resistance of the high-temperature superconducting block at minus 196 degrees Celsius is zero, and it becomes a superconducting coil; the electromagnetic coil of the hidden electromagnetic long track generates an electromagnetic field in the vertical direction after being energized. After the hidden electromagnetic long track approaches the superconducting coil, the induced current of the electromagnetic field-induced superconducting coil continues to exist in the superconducting coil. When the electromagnetic field of the electromagnetic coil reaches a certain intensity, the superconducting coil generates a strong magnetic field of vertical pinning flux, which makes the high-temperature superconducting block magnetically suspended on the hidden electromagnetic long track. The high-temperature superconducting block is placed above the hidden electromagnetic long track and is fixed at a certain distance. This is the state of the magnetic flux pinning effect between the high-temperature superconducting block and the hidden electromagnetic long track. Under the action of external force, the magnetic flux pinning effect between the high-temperature superconducting block and the hidden electromagnetic long track has both repulsive magnetic force and attractive magnetic force. When the external force makes the high-temperature superconducting block approach the hidden electromagnetic long track, it is a repulsive magnetic force. When the external force makes the high-temperature superconducting block leave the hidden electromagnetic long track, it is an attractive magnetic force. The high-temperature superconducting pinning flux traction pure electric vehicle device designs the electromagnetic field of the hidden electromagnetic long track as a mobile electromagnetic field. The mobile electromagnetic field uses the magnetic flux pinning effect of the high-temperature superconducting block to pull the superconducting coil, thereby achieving the purpose of pulling and guiding the pure electric vehicle by the pinning flux effect.

[0010] A strip slot frame is provided at the center line of the bottom of the shell of the liquid nitrogen insulation box. The strip slot frame is longitudinal. The upper end of the strip slot frame is supported on the bottom center line of the high-temperature superconducting block material. An infrared communication transmitting strip is provided in the strip slot at the lower end of the strip slot frame. The infrared communication transmitting strip is composed of multiple closely arranged infrared communication transmitting heads. The output ends of multiple identical infrared communication transmitting heads are connected in parallel to the input end of the central controller.

[0011] An inner electric speed regulating pedal is provided at the right foot position of the driver in the driving cab of the pure electric vehicle, an outer electric speed regulating pedal is provided to the right of the inner electric speed regulating pedal, an inner speed regulating sensor is provided at the lower end of the inner electric speed regulating pedal, and an outer speed regulating sensor is provided at the lower end of the outer electric speed regulating pedal. The inner and outer speed regulating sensors are respectively connected to the inner input end and the outer input end of the on-board central controller. When the driver steps on the inner electric speed regulating pedal, the pure electric vehicle operates in the inner electric mode, and the inner electric speed regulating signal controls the on-board motor through the on-board central controller. In the inner electric mode, the original inner electric driving function of the pure electric vehicle remains unchanged; when the driver steps on the outer electric speed regulating pedal, the pure electric vehicle operates in the outer electric mode, and the outer electric speed regulating signal turns on the power supply of the reduction motor through the on-board central controller, the reduction motor drives the movable frame, the liquid nitrogen incubator descends, and the bottom of the liquid nitrogen incubator approaches multiple reflective proximity switches of the hidden electromagnetic long track. The multiple reflective proximity switches output switch trigger signals to the trigger ends of multiple DC chopper modules respectively, turning on A DC power supply for multiple electromagnetic coils; an external electric speed regulation signal outputs a modulation signal to the input end of an infrared communication transmitter bar through a vehicle-mounted central controller, and the infrared communication transmitter bar transmits an infrared speed regulation signal. The infrared communication receiver bar can receive the infrared speed regulation signal only after the infrared communication transmitter bar approaches multiple infrared communication receiver heads of a hidden electromagnetic long track. Multiple infrared speed regulation signals are respectively input to the speed regulation ends of multiple DC chopper modules, and multiple DC chopper modules output speed regulation DC voltages to multiple electromagnetic coils. Multiple electromagnetic coils respectively generate multiple electromagnetic fields in vertical directions that follow the movement of a liquid nitrogen incubator, and multiple identical electromagnetic fields synthesize a mobile electromagnetic field. The mobile electromagnetic field induces a superconducting coil to generate a powerful superconducting current, and the superconducting current generates a powerful electromagnetic field with a magnetic flux pinning effect. The mobile electromagnetic field pulls the powerful electromagnetic field of the high-temperature superconducting block material to drive the pure electric vehicle forward. The rear wheel of the pure electric vehicle drives the on-board motor, and the on-board motor reversely charges the on-board lithium battery pack, so as to achieve the purpose of charging while the pure electric vehicle is driving.

[0012] The hidden electromagnetic long track is composed of a plurality of electromagnetic track units of the same model connected together, the electromagnetic track unit is provided with an I-shaped iron core track, the length of the I-shaped iron core track is 10 meters, the width is less than 30 cm, and the height is about 5 cm. The I-shaped iron core track is provided with a strip bottom plate, the upper end of the strip bottom plate is provided with a plurality of equally divided iron core columns of the same specification, the upper end of the iron core column is provided with a plurality of flat teeth of the same specification, and the plurality of flat teeth are provided with equally divided tooth gaps between the plurality of flat teeth. The strip bottom plate, the plurality of iron core columns and the plurality of flat teeth are integrally cast into an I-shaped iron core track, the periphery of the plurality of iron core columns forms a plurality of coil slots, and the plurality of coil slots are all wound with electromagnetic coils with the same number of turns and the same direction; a negative pole transmission copper bar is provided at the upper left end of the strip bottom plate, the length of the negative pole transmission copper bar is 10 meters, and the negative pole transmission copper bar is connected to the strip bottom plate with a plurality of left screws; a strip bottom plate is provided at the upper right end The track circuit board is connected to the strip bottom plate with multiple right screws, multiple DC chopper modules are welded at the lower right end of the track circuit board, and the track circuit board and multiple DC chopper modules form a DC chopper module. The positive transmission copper bus is welded at the upper right end of the track circuit board. The length of the positive transmission copper bus is 10 meters, and multiple module lead welding points are arranged on the track circuit board at the right end of the positive transmission copper bus. When multiple electromagnetic track units are docked and installed, the front and rear ends of the multiple positive transmission copper buses are welded as a whole, and the front and rear ends of the multiple negative transmission copper buses are welded as a whole. There are multiple equally divided medium-voltage DC power supply stations near the driving and charging highway. The positive output line of the medium-voltage DC power supply of the power supply station is welded to the corresponding positive transmission copper bus through an underground cable, and the negative output line of the medium-voltage DC power supply of the power supply station is welded to the corresponding negative transmission copper bus through an underground cable.

[0013] The electromagnetic track unit is provided with a plurality of independent control drive units of the same specification, and the independent control drive units are composed of a circuit connection of a horizontally corresponding electromagnetic coil, a DC chopper module, a reflective proximity switch, an infrared communication receiving head, a positive power transmission copper bus and a negative power transmission copper bus. At a horizontally corresponding position, the head end wire of the electromagnetic coil is welded to the negative power transmission copper bus, and the tail end wire of the electromagnetic coil is welded to the corresponding module lead welding point, and the output end of the corresponding DC chopper module is connected through the module lead welding point. The power supply ends of the plurality of DC chopper modules are all connected to the positive power transmission copper bus, and the grounding ends of the plurality of DC chopper modules are connected to the strip bottom plate through the track circuit board and a plurality of right screws; the right part of the plurality of tooth gaps is provided with A reflective proximity switch, wherein the upper end plane of the reflective proximity switch is consistent with the upper end plane of the flat tooth; the reflective proximity switch of the independent control drive unit is located at the rear end of the corresponding electromagnetic coil, and the output line of the reflective proximity switch is welded on the corresponding module lead welding, and is connected to the trigger end of the corresponding DC chopper module through the module lead welding point; an infrared communication receiving head is provided in the middle of multiple tooth gaps, and the upper end plane of the infrared communication receiving head is consistent with the upper end plane of the flat tooth; the infrared communication receiving head of the independent control drive unit is located at the rear end of the corresponding electromagnetic coil, and the output line of the infrared communication receiving head is welded on the corresponding module lead welding, and is connected to the speed regulation end of the corresponding DC chopper module through the module lead welding point.

[0014] When the pure electric vehicle enters the driving and charging highway in the inner electric mode, first the center line of the chassis is located at the transparent long line mark. After the right foot releases the inner electric speed control pedal, the right foot steps on the outer electric speed control pedal, the outer speed control sensor outputs a trigger signal to the central controller, and the pure electric vehicle automatically switches to the outer electric mode. The central controller controls the reduction motor to drive the movable frame of the parallel 4-side elevator to drop into place, and the uniform air gap between the lower end face of the liquid nitrogen insulation box and the road surface is about 1 cm; the center line of the chassis of the pure electric vehicle is located on the hidden electromagnetic long track for driving. Within the length range of the lower end face of the liquid nitrogen insulation box, corresponding to the multiple reflective proximity switches on the hidden electromagnetic long track, there will always be 4-5 reflective proximity switches close to the lower end face of the liquid nitrogen insulation box, and the 4-5 reflective proximity switches are all turned on, and the reflective proximity switches outside the lower end face of the insulation box are all in the cut-off state. The 4-5 reflective proximity switches output trigger signals to the trigger ends of the corresponding DC chopper modules respectively, and the 4-5 independent control drives The power of the driving unit is turned on; when the center line of the vehicle chassis is located at the transparent long line mark, the infrared communication transmitting bar at the lower end of the liquid nitrogen insulation box corresponds to the multiple infrared communication receiving heads of the hidden electromagnetic long track, and the coverage range of the infrared communication transmitting bar is close to 4-5 infrared communication receiving heads. The 4-5 infrared communication receiving heads all receive the voltage regulation signal, and the infrared communication receiving heads outside the range of the infrared communication transmitting bar do not receive the voltage regulation signal. The 4-5 infrared communication receiving heads output the voltage regulation signal to the corresponding speed regulation end of the DC chopper module, and at the same time, the power supply of the 4-5 independent control drive units is regulated. The speed regulation voltage output by the 4-5 DC chopper modules is proportional to the foot-stepping amplitude of the external electric speed regulation pedal, and the speed regulation voltage output by the 4-5 DC chopper modules is respectively sent to the corresponding electromagnetic coils; the flat teeth of the 4-5 electromagnetic coils respectively induce planar electromagnetic fields with the same polarity and strength, and the 4-5 planar magnetic fields are synthesized into a moving electromagnetic field in the vertical direction, and the moving electromagnetic field moves forward with the liquid nitrogen insulation box;The high-temperature superconducting block cooled by the liquid nitrogen evaporator becomes a superconducting coil. The superconducting coil generates a strong magnetic field of superconducting current under the induction of the moving electromagnetic field. A flux pinning effect is generated between the strong magnetic field of superconducting current and the moving electromagnetic field. The magnetic levitation force of the flux pinning between the superconducting coil and the 4-5 flat plate teeth causes the superconducting coil to be magnetically suspended and fixed at a certain height above the 4-5 flat plate teeth. The width of the superconducting coil is equal to the width of the 4-5 flat plate teeth, and the length of the superconducting coil is less than the length of the 4-5 flat plate teeth. The lower end face of the liquid nitrogen insulation box moving forward approaches the 4-5 reflective proximity switches. Under the control of the 4-5 reflective proximity switches, the moving electromagnetic field moves forward, and the positions of the front and rear ends of the superconducting coil always lag behind the positions of the front and rear ends of the moving electromagnetic field. The attraction of the flux pinning between the superconducting coil and the 4-5 flat plate teeth causes the moving electromagnetic field in front of the superconducting coil to attract the superconducting coil to move forward, and the left and right ends of the superconducting coil automatically align with the left end of the 4-5 flat plate teeth. The right end is aligned, the superconducting coil is automatically guided on the track of the hidden electromagnetic long track, and the magnetic levitation force between the superconducting coil and 4-5 flat teeth makes the front end of the pure electric vehicle in a magnetic levitation state; the hidden electromagnetic long track supports the liquid nitrogen insulation box, the liquid nitrogen insulation box supports the parallel 4-side elevator, and the parallel 4-side elevator supports the front end of the pure electric vehicle. The front wheel of the pure electric vehicle is about 5cm away from the road surface. The magnetic levitation distance between the bottom of the liquid nitrogen insulation box and the upper end of the hidden electromagnetic long track is about 5cm, so that the front wheel of the pure electric vehicle is in a magnetic levitation traction state. The pure electric vehicle is automatically guided on the hidden electromagnetic long track. The steering wheel of the pure electric vehicle loses its function. The driver only needs to pay attention to controlling the speed. If an assisted driving function is provided, the pure electric vehicle can travel in an artificial intelligence unmanned driving state; the magnetic levitation force between the superconducting coil and the hidden electromagnetic long track is a repulsive magnetic force, and the traction and guiding force between the superconducting coil and the hidden electromagnetic long track are attractive magnetic forces. ;

[0015] The traction of the outer electric power of a pure electric vehicle is proportional to the amplitude of the outer electric speed regulating pedal. Stepping on the outer electric speed regulating pedal can control the speed of the pure electric vehicle. The front end of the electric vehicle automatically follows the trajectory of the hidden electromagnetic long track in the magnetic levitation state, and automatically guides it to a straight or turning state; in the outer electric mode, the traction of the pure electric vehicle drives the rear wheel through the friction between the road surface and the rear wheel, and the rear wheel drives the on-board motor, and the on-board motor automatically back charges the on-board lithium battery pack through the on-board central controller. The flexible braking back charging function of the pure electric vehicle causes a certain resistance to the rear wheel; conversely, when the pure electric vehicle is traveling on an ordinary road, the inner electric speed regulating pedal is stepped on. In the inner electric mode, the pure electric vehicle relies on the on-board lithium battery pack for power supply, and the on-board motor drives the rear wheels of the pure electric vehicle; the braking functions in the inner and outer electric modes are the same.

[0016] Furthermore, the parallel four-sided lift is installed at the front lower end of the vehicle chassis, the front end of the vehicle chassis is welded with a front left shaft sleeve seat and a front right shaft sleeve seat, and the rear ends of the front left shaft sleeve seat and the front right shaft sleeve seat are welded with a rear left shaft sleeve seat and a rear right shaft sleeve seat, and the specifications of the four shaft sleeve seats are the same, the inner circle of the shaft sleeves of the front left shaft sleeve seat and the front right shaft sleeve seat are loosely fitted to install the driving long shaft, the left end of the driving long shaft is tightly fitted to install the front left rocker arm, and the right end of the driving long shaft is tightly fitted to install the front right rocker arm; the inner circle of the shaft sleeves of the rear left shaft sleeve seat and the rear right shaft sleeve seat are loosely fitted to install the linkage long shaft, the left end of the linkage long shaft is tightly fitted to install the rear left rocker arm, and the right end of the linkage long shaft is tightly fitted to install the rear right rocker arm; The specifications of the four rocker arms are the same. The four rocker arms are drooping in a free state. The lower ends of the four rocker arms are provided with shaft holes of the same specifications. The inner circles of the shaft holes of the front left rocker arm and the front right rocker arm are loosely fitted to install the front frame shaft, and the inner circles of the shaft holes of the rear left rocker arm and the rear right rocker arm are loosely fitted to install the rear frame shaft; the movable frame is provided with a left rod and a right rod, the inner ends of the left and right rods are respectively welded to the front rod and the rear rod, the front end of the left and right rods are welded to the front frame shaft, and the rear end of the left and right rods is welded to the rear frame shaft. The left rod, the right rod, the front rod, the rear rod, the front frame shaft and the rear frame shaft constitute a movable frame, and a liquid nitrogen insulation box is installed at the lower ends of the front rod and the rear rod.

[0017] Furthermore, a reduction motor is provided at the left front end of the parallel four-sided lift, and the reduction motor is fixed in the motor slot of the vehicle chassis, and the driving shaft of the reduction motor is the same driving shaft as the driving long axis; when the driving shaft of the reduction motor rotates clockwise, it drives the four rocker arms and the movable frame to rotate clockwise to a horizontal state, and the liquid nitrogen insulation box rises to the highest position; when the driving shaft of the reduction motor rotates counterclockwise, it drives the four rocker arms and the movable frame to rotate counterclockwise to a vertical state, and the liquid nitrogen insulation box descends to the lowest position; an upper proximity switch sensor is provided at the position of the vehicle chassis corresponding to the rear end of the lower right side rod, and the output end of the upper proximity switch sensor is connected to the central The upper input end of the controller; a sensor bracket is provided at the position of the vehicle chassis corresponding to the rear right rocker arm, and a lower proximity switch sensor is installed at the lower end of the sensor bracket, and the output end of the lower proximity switch sensor is connected to the lower input end of the central controller; when the right lower side rod approaches the upper proximity switch sensor, the upper proximity switch sensor outputs a trigger signal to turn off the power of the reduction motor through the central controller, and the right lower side rod rises to form a straight line with the rear right rocker arm; when the front end of the current right rocker arm approaches the lower proximity switch sensor, the lower proximity switch sensor outputs a trigger signal to turn off the power of the reduction motor through the central controller, and the right lower side rod descends to form a right angle with the front right rocker arm.

[0018] Furthermore, the reflective proximity switch has a short-range position sensing function. When the parallel distance between the lower end surface of the liquid nitrogen insulation box and the road surface is less than 5 cm, the reflective proximity switch is turned on at the front end portion vertically corresponding to the liquid nitrogen insulation box, and the reflective proximity switch is turned off at the rear end portion vertically away from the liquid nitrogen insulation box. When the parallel distance between the lower end surface of the liquid nitrogen insulation box and the road surface is greater than 6 cm, the multiple reflective proximity switches covered by the liquid nitrogen insulation box are all turned off. The length of the liquid nitrogen insulation box is less than the length of 5 flat plate teeth. When the liquid nitrogen insulation box is located between the first flat tooth at the front end of the liquid nitrogen insulation box and the fifth flat tooth at the rear end of the liquid nitrogen insulation box, the reflective proximity switch at the front end of the first flat tooth and the reflective proximity switch at the rear end of the fifth flat tooth are both cut off, and the second, third, fourth and fifth reflective proximity switches covered by the liquid nitrogen insulation box are close to the bottom of the liquid nitrogen insulation box. The first, second, third and fourth flat teeth covered by the liquid nitrogen insulation box all generate vertical electromagnetic fields, and the electromagnetic fields of the four flat teeth are The occasion becomes a moving electromagnetic field, and the moving electromagnetic field approaches the high-temperature superconducting block to become a superconducting coil. The superconducting coil generates a superconducting current strong magnetic field. The position of the length range of the liquid nitrogen incubator lags behind the positions of the length ranges of the first, second, third and fourth flat teeth. Therefore, the position of the superconducting current strong magnetic field length range lags behind the position of the moving electromagnetic field length range. The attraction of magnetic flux pinning between the superconducting current strong magnetic field and the moving electromagnetic field pulls the superconducting coil forward. When the front end of the liquid nitrogen incubator approaches the first reflective proximity switch and turns it on, the flat teeth at the front end of the first reflective proximity switch generate an electromagnetic field in a vertical direction. When the rear end of the liquid nitrogen incubator leaves the fifth reflective proximity switch and turns it off, the electromagnetic field of the fourth flat tooth disappears, and the moving electromagnetic field moving forward continues to pull the superconducting coil forward. No matter how the front and rear positions between the liquid nitrogen incubator and the hidden electromagnetic long track change, the position of the superconducting current strong magnetic field length range always lags behind the position of the moving electromagnetic field length range, and the attraction of magnetic flux pinning always pulls the superconducting coil forward.

[0019] Further, the liquid nitrogen insulated box is made of high-strength plastic, the liquid nitrogen insulated box is provided with a square cover plate, a square inner chamber is provided in the middle of the lower end of the square cover plate, a square shell is provided at the lower end of the square cover plate, a frame connecting edge is provided at the upper end of the four sides of the square shell, the frame connecting edge is consistent in size with the square cover plate, four sealing grooves are provided between the frame connecting edge and the square cover plate, four sealing rings are provided in the four sealing grooves, four connecting screws are provided at the four corners of the frame connecting edge and the square cover plate, the four connecting screws combine and install the frame connecting edge and the square cover plate, the four connecting screws fasten the frame connecting edge and the square cover plate to the lower ends of the front side rod and the rear side rod, and the four sealing rings provide sealing protection for the vacuum chambers of various parts of the liquid nitrogen insulated box; in order to increase the high-temperature superconducting block material In order to strengthen the force during traction, guidance and magnetic levitation, a left support plate and a right support plate are provided at the upper end of the square inner cavity, and the left support plate and the right support plate are connected to the square cover plate. The high-temperature superconducting block is bonded to the lower end of the square inner cavity with AB glue and integrated with the square inner cavity. The strip groove frame at the center line of the bottom of the outer shell is supported on the center line of the bottom of the high-temperature superconducting block. In order to shorten the distance between the high-temperature superconducting block and the hidden electromagnetic long track, the spacing distance of the lower vacuum cavity between the high-temperature superconducting block and the bottom of the square outer shell is smaller than the distance between the upper vacuum cavity, the left vacuum cavity, the right vacuum cavity, the front vacuum cavity and the rear vacuum cavity, and the upper vacuum cavity, the left vacuum cavity, the right vacuum cavity, the front vacuum cavity and the rear vacuum cavity are connected to each other. In order to facilitate the vacuum pumping of the vacuum cavity, an exhaust valve is provided at the front end of the square outer shell.

[0020] Furthermore, the hidden electromagnetic long track is composed of a plurality of electromagnetic track units of the same model connected together, the length of the electromagnetic track unit is 10 meters, and for the transmission of photoelectric signals and the protection of the electromagnetic track unit, the surface of the electromagnetic track unit is provided with a groove-shaped transparent shell, the length of the groove-shaped transparent shell is 10 meters, and the groove-shaped transparent shell seals and packages the I-shaped iron core track, a plurality of electromagnetic coils, a plurality of reflective proximity switches and a plurality of infrared communication receiving heads of the electromagnetic track unit, and the lower end of the groove-shaped transparent shell is provided with a left sealing edge and a right sealing edge, the left sealing edge is installed between the negative pole transmission copper busbar and the strip bottom plate, and the right sealing edge is installed between the positive pole transmission copper busbar and the strip bottom plate. When multiple electromagnetic track units are connected and installed The butt joints of the front and rear ends of the trough-shaped transparent shell are welded as a whole; the upper spaces of the negative transmission copper busbar and the positive transmission copper busbar are filled with asphalt mixture, the upper plane of the asphalt mixture and the upper plane of the trough-shaped transparent shell are consistent with the plane of the asphalt road, the asphalt mixture and the asphalt road surface are fused as a whole, and the hidden electromagnetic long track and the asphalt road surface are firmly formed as an integral plane. Because the I-shaped iron core track has a large load-bearing strength, the hidden electromagnetic long track can withstand the crushing of heavy vehicles; the electromagnetic track unit is provided with a straight type and a curved type. The hidden electromagnetic long track of the straight route adopts the connection of multiple straight electromagnetic track units, and the hidden electromagnetic long track of the turning route adopts the connection of multiple curved electromagnetic track units.

[0021] The benefits of the pure electric vehicle high-temperature superconducting flux pinning guide traction device are: for the green development of energy conservation and environmental protection, it is an irresistible trend for new energy vehicles to completely replace fuel vehicles, among which the high-quality development of pure electric vehicles is particularly important. The use of the pinning flux effect of high-temperature superconducting materials to pull and guide pure electric vehicles can effectively solve the charging problem and long-distance driving problem of pure electric vehicles, effectively reduce the use of charging piles, and effectively reduce the use of lithium battery packs, thereby further reducing the cost of pure electric vehicles; the hidden electromagnetic long track structure is simple, firm, easy to produce, easy to install, and low in cost; the plane of the hidden electromagnetic long track is consistent with the plane of the road, does not affect the basic function and mechanical strength of the road, and does not affect the passage of any vehicle; the high-temperature superconducting pinning flux traction pure electric vehicle device can enable pure electric vehicles to travel long distances, can reduce weight and reduce costs, the front wheels of the pure electric vehicle are automatically guided in the magnetic suspension state, which is conducive to the realization of unmanned driving of artificial intelligence, the application of the hidden electromagnetic long track is conducive to promoting the development of emerging industries of energy conservation and environmental protection, and the high-temperature superconducting pinning flux traction pure electric vehicle device is conducive to promoting the high-quality development of pure electric vehicles, and at the same time is conducive to promoting the application of high-temperature superconducting downstream products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the rear view structural diagram of the electric mode inside the high-temperature superconducting flux pinning guide traction device of a pure electric vehicle.

[0023] Figure 2 This is the right view structural diagram of the electric mode in the high-temperature superconducting flux pinning guide traction device of a pure electric vehicle.

[0024] Figure 3 This is the rear view structure diagram of the high-temperature superconducting flux pinning guide traction device for a pure electric vehicle in electric mode.

[0025] Figure 4 This is the electrical schematic diagram of the high-temperature superconducting flux pinning guide traction device for pure electric vehicles.

[0026] Figure 5 This is the right view structural diagram of the external electric mode of the high-temperature superconducting flux pinning guide traction device for pure electric vehicles.

[0027] Figure 6 This is the right view structural diagram of the traction principle of the high-temperature superconducting flux pinning guide traction device for pure electric vehicles. DETAILED DESCRIPTION

[0028] exist Figure 1-Figure 6In the charging-while-driving highway, the existing ordinary highways and expressways as well as all highways inside and outside the city are used as the basis, and hidden electromagnetic long tracks are directly installed under the straight lanes, left-turn lanes and right-turn lanes of various highways; the hidden electromagnetic long track is a hidden traction guide track buried under the road surface, the width of the hidden electromagnetic long track is about 30 cm, the height is about 5 cm, and the length is the length of the charging-while-driving highway; on the road surface of the asphalt highway, a long track groove is excavated with a cutting machine and a chiseling tool, the length of the long track groove is the length of the charging-while-driving highway, the width is slightly larger than the width of the hidden electromagnetic long track, and the depth is equal to the height of the hidden electromagnetic long track. The hidden electromagnetic long track is placed at the bottom of the long track groove, and the hidden electromagnetic long track A groove-shaped transparent shell 1 is provided on the surface of the road, and the groove-shaped transparent shell is made of high-strength transparent plastic. Asphalt mixture 2 is filled between the groove-shaped transparent shell and the long track groove. The upper plane of the groove-shaped transparent shell and the upper plane of the asphalt mixture are consistent with the plane of the asphalt road. The groove-shaped transparent shell is tightly attached to the hidden electromagnetic long track, which has the protective effect of preventing rain erosion and rolling damage; the groove-shaped transparent shell is conducive to the transmission of photoelectric signals between the liquid nitrogen insulation box and the hidden electromagnetic long track, and the groove-shaped transparent shell forms a transparent long line mark parallel to the driving and charging road, which is different from the road surface in color; the driving and charging road is compatible with ordinary roads and highways as well as all roads inside and outside the city. Pure electric vehicles share road resources with all other motor vehicles, and the driving and charging road does not affect the passage of any motor vehicle.

[0029] A parallel four-sided lift is provided at the front lower end of the chassis 3 of the pure electric vehicle, a movable frame 4 is provided at the lower end of the parallel four-sided lift, a reduction motor 5 is provided at the front end of the movable frame, a liquid nitrogen insulation box is installed at the lower end of the movable frame, the liquid nitrogen insulation box is provided with a square cover plate 6, a square outer shell 7 is provided at the lower end of the square cover plate, a square inner chamber 8 is provided in the middle of the liquid nitrogen insulation box, and an insulating upper vacuum chamber 9, a lower vacuum chamber 10, a front vacuum chamber 11, a rear vacuum chamber 12, a left vacuum chamber 13 and a right vacuum chamber 14 are provided between the square outer shell and the square inner chamber for good heat preservation of the square inner chamber; the bottom of the square inner chamber is bonded with AB glue A square-shaped high-temperature superconducting block 15 is provided above the high-temperature superconducting block. A square-shaped liquid nitrogen evaporator 16 is provided above the high-temperature superconducting block. The liquid nitrogen evaporator is tightly combined with the high-temperature superconducting block, which is conducive to heat conduction. A high-pressure liquid nitrogen pipe 17 and a low-pressure suction pipe 18 are provided at the upper end of the liquid nitrogen evaporator. The high-pressure liquid nitrogen pipe and the low-pressure suction pipe are led out through the upper vacuum chamber and the pipe holes on the square cover plate. The liquid nitrogen refrigerator includes a nitrogen compressor, a liquid nitrogen condenser and a cooling fan. A nitrogen compressor 19 is provided at the front upper end of the chassis. A liquid nitrogen condenser 20 is provided at the front end of the nitrogen compressor. A cooling fan 21 is provided between the nitrogen compressor and the liquid nitrogen condenser. The high-pressure output pipe 22 of the compressor is connected to the input end of the liquid nitrogen condenser. When the nitrogen compressor is working, it outputs high-pressure hot nitrogen with a pressure greater than 100Mpa to the liquid nitrogen condenser. The high-pressure hot nitrogen in the liquid nitrogen condenser is cooled by the cooling fan to become liquid nitrogen. The liquid nitrogen enters the liquid nitrogen evaporator through the high-pressure liquid nitrogen pipe and the capillary tube for evaporation and refrigeration. The output end of the liquid nitrogen evaporator is connected to the low-pressure input end of the nitrogen compressor. The refrigeration temperature of the liquid nitrogen evaporator is below minus 196 degrees Celsius. The connection surface between the liquid nitrogen evaporator and the high-temperature superconducting block in close contact has good heat conduction, so that the cooling temperature of the high-temperature superconducting block is minus 196 degrees Celsius. Celsius, the resistance of the high-temperature superconducting block at minus 196 degrees Celsius is zero, and it becomes a superconducting coil; after the electromagnetic coil of the hidden electromagnetic long track is energized, a vertical electromagnetic field is generated. After the hidden electromagnetic long track approaches the superconducting coil, the induced current of the electromagnetic field-induced superconducting coil continues to exist in the superconducting coil. When the electromagnetic field of the electromagnetic coil reaches a certain intensity, the superconducting coil generates a vertical pinning magnetic flux strong magnetic field, which makes the high-temperature superconducting block magnetically suspended above the hidden electromagnetic long track and fixed at a certain distance. This is the state of magnetic flux pinning effect between the high-temperature superconducting block and the hidden electromagnetic long track;Under the action of external force, the magnetic flux pinning effect between the high-temperature superconducting block and the hidden electromagnetic long track has both repulsive magnetic force and attractive magnetic force. When the external force makes the high-temperature superconducting block approach the hidden electromagnetic long track, it is a repulsive magnetic force. When the external force makes the high-temperature superconducting block leave the hidden electromagnetic long track, it is an attractive magnetic force. The high-temperature superconducting pinning magnetic flux traction pure electric vehicle device designs the electromagnetic field of the hidden electromagnetic long track as a mobile electromagnetic field. The mobile electromagnetic field uses the magnetic flux pinning effect of the high-temperature superconducting block to pull the superconducting coil, so as to achieve the purpose of pulling and guiding the pure electric vehicle by the pinning magnetic flux effect. ;

[0030] A strip slot frame 23 is provided at the center line of the bottom of the shell of the liquid nitrogen insulation box. The strip slot frame is longitudinal, and the upper end of the strip slot frame is supported on the bottom center line of the high-temperature superconducting block. An infrared communication transmitting strip 24 is provided in the strip slot at the lower end of the strip slot frame. The infrared communication transmitting strip is composed of multiple closely arranged infrared communication transmitting heads 25, and the output ends of multiple identical infrared communication transmitting heads are connected in parallel to the input end of the central controller 26.

[0031] An inner electric speed regulating pedal 27 is provided at the right foot position of the driver in the driving room of the pure electric vehicle, an outer electric speed regulating pedal 28 is provided to the right side of the inner electric speed regulating pedal, an inner speed regulating sensor 29 is provided at the lower end of the inner electric speed regulating pedal, and an outer speed regulating sensor 30 is provided at the lower end of the outer electric speed regulating pedal. The inner and outer speed regulating sensors are respectively connected to the inner input end and the outer input end of the on-board central controller. When the driver steps on the inner electric speed regulating pedal, the pure electric vehicle works in the inner electric mode, and the inner electric speed regulating signal controls the on-board motor through the on-board central controller. In the inner electric mode, the original inner electric driving function of the pure electric vehicle remains unchanged; when the driver steps on the outer electric speed regulating pedal, the pure electric vehicle works in the outer electric mode, and the outer electric speed regulating signal turns on the power supply of the reduction motor through the on-board central controller, the reduction motor drives the movable frame, the liquid nitrogen incubator descends, and the bottom of the liquid nitrogen incubator approaches multiple reflective proximity switches 31 of the hidden electromagnetic long track, and the multiple reflective proximity switches output switch trigger signals to trigger multiple DC chopper modules 32 respectively. end, turn on the DC power supply of multiple electromagnetic coils 33; the external electric speed regulation signal outputs a modulation signal to the input end of the infrared communication transmitter through the on-board central controller, and the infrared communication transmitter transmits the infrared speed regulation signal. After the infrared communication transmitter approaches the multiple infrared communication receiving heads 34 of the hidden electromagnetic long track, the infrared communication receiving head can receive the infrared speed regulation signal, and the multiple infrared speed regulation signals are respectively input to the speed regulation ends of the multiple DC chopper modules, and the multiple DC chopper modules output speed regulation DC voltages to the multiple electromagnetic coils. The multiple electromagnetic coils respectively generate multiple electromagnetic fields in the vertical direction that follow the movement of the liquid nitrogen incubator, and the multiple identical electromagnetic fields synthesize a mobile electromagnetic field. The mobile electromagnetic field induces the superconducting coil to generate a strong superconducting current, and the superconducting current generates a strong electromagnetic field with a magnetic flux pinning effect. The mobile electromagnetic field pulls the strong electromagnetic field of the high-temperature superconducting block to drive the pure electric vehicle forward, and the rear wheel of the pure electric vehicle drives the on-board motor, and the on-board motor reversely charges the on-board lithium battery pack, so as to achieve the purpose of charging while the pure electric vehicle is driving.

[0032] The hidden electromagnetic long track is composed of a plurality of electromagnetic track units of the same model connected together, the electromagnetic track unit is provided with an I-shaped iron core track, the length of the I-shaped iron core track is 10 meters, the width is less than 30 cm, and the height is about 5 cm. The I-shaped iron core track is provided with a strip bottom plate 35, and the upper end of the strip bottom plate is provided with a plurality of equally divided iron core columns 36 of the same specification, and the upper end of the iron core column is provided with a plurality of flat plate teeth 37 of the same specification, and the plurality of flat plate teeth are provided with equally divided tooth gaps between the plurality of flat plate teeth. The strip bottom plate, the plurality of iron core columns and the plurality of flat plate teeth are integrally cast into an I-shaped iron core track, and the periphery of the plurality of iron core columns forms a plurality of coil slots, and the plurality of coil slots are all wound with electromagnetic coils 33 with the same number of turns and the same direction; a negative pole transmission copper bar 38 is provided at the upper left end of the strip bottom plate, and the length of the negative pole transmission copper bar is 10 meters, and the negative pole transmission copper bar is connected to the strip bottom plate with a plurality of left screws 39; a track is provided at the upper right end of the strip bottom plate Circuit board 40, the track circuit board and the strip bottom plate are connected by multiple right screws 41, multiple DC chopper modules 32 are welded at the right lower end of the track circuit board, the track circuit board and the multiple DC chopper modules form a DC chopper module, the positive transmission copper bus 42 is welded at the right upper end of the track circuit board, the length of the positive transmission copper bus is 10 meters, and multiple module lead welding points 43 are arranged on the track circuit board at the right end of the positive transmission copper bus; when multiple electromagnetic track units are docked and installed, the front and rear ends of the multiple positive transmission copper buses are welded as a whole, and the front and rear ends of the multiple negative transmission copper buses are welded as a whole; multiple equally divided medium-voltage DC power supply stations 44 are arranged near the driving and charging highway, the positive output line 45 of the medium-voltage DC power supply of the power supply station is welded to the corresponding positive transmission copper bus through an underground cable, and the negative output line 46 of the medium-voltage DC power supply of the power supply station is welded to the corresponding negative transmission copper bus through an underground cable.

[0033] The electromagnetic track unit is provided with a plurality of independent control drive units of the same specification, and the independent control drive units are composed of a circuit connection of a horizontally corresponding electromagnetic coil, a DC chopper module, a reflective proximity switch, an infrared communication receiving head, a positive power transmission copper bus and a negative power transmission copper bus. At a horizontally corresponding position, the head end wire of the electromagnetic coil is welded to the negative power transmission copper bus, and the tail end wire of the electromagnetic coil is welded to the corresponding module lead welding point, and the output end of the corresponding DC chopper module is connected through the module lead welding point. The power supply ends of the plurality of DC chopper modules are all connected to the positive power transmission copper bus, and the grounding ends of the plurality of DC chopper modules are connected to the strip bottom plate through the track circuit board and a plurality of right screws; the right part of the plurality of tooth gaps is provided with a reflective The reflective proximity switch 31 is consistent with the upper end plane of the flat tooth; the reflective proximity switch of the independent control drive unit is located at the rear end of the corresponding electromagnetic coil, and the output line of the reflective proximity switch is welded on the corresponding module lead welding, and is connected to the trigger end of the corresponding DC chopper module through the module lead welding point; an infrared communication receiving head 34 is provided in the middle of the plurality of tooth gaps, and the upper end plane of the infrared communication receiving head is consistent with the upper end plane of the flat tooth; the infrared communication receiving head of the independent control drive unit is located at the rear end of the corresponding electromagnetic coil, and the output line of the infrared communication receiving head is welded on the corresponding module lead welding, and is connected to the speed regulation end of the corresponding DC chopper module through the module lead welding point.

[0034] When the pure electric vehicle enters the driving and charging highway in the inner electric mode, first the center line of the chassis is located at the transparent long line mark. After the right foot releases the inner electric speed control pedal, the right foot steps on the outer electric speed control pedal, the outer speed control sensor outputs a trigger signal to the central controller, and the pure electric vehicle automatically switches to the outer electric mode. The central controller controls the reduction motor to drive the movable frame of the parallel 4-side elevator to drop into place, and the uniform air gap between the lower end face of the liquid nitrogen insulation box and the road surface is about 1 cm; the center line of the chassis of the pure electric vehicle is located on the hidden electromagnetic long track for driving. Within the length range of the lower end face of the liquid nitrogen insulation box, corresponding to the multiple reflective proximity switches on the hidden electromagnetic long track, there will always be 4-5 reflective proximity switches close to the lower end face of the liquid nitrogen insulation box, and the 4-5 reflective proximity switches are all turned on, and the reflective proximity switches outside the lower end face of the insulation box are all in the cut-off state. The 4-5 reflective proximity switches output trigger signals to the trigger ends of the corresponding DC chopper modules respectively, and the 4-5 independent control drives The power of the driving unit is turned on; when the center line of the vehicle chassis is located at the transparent long line mark, the infrared communication transmitting bar at the lower end of the liquid nitrogen insulation box corresponds to the multiple infrared communication receiving heads of the hidden electromagnetic long track, and the coverage range of the infrared communication transmitting bar is close to 4-5 infrared communication receiving heads. The 4-5 infrared communication receiving heads all receive the voltage regulation signal, and the infrared communication receiving heads outside the range of the infrared communication transmitting bar do not receive the voltage regulation signal. The 4-5 infrared communication receiving heads output the voltage regulation signal to the corresponding speed regulation end of the DC chopper module, and at the same time, the power supply of the 4-5 independent control drive units is regulated. The speed regulation voltage output by the 4-5 DC chopper modules is proportional to the foot-stepping amplitude of the external electric speed regulation pedal, and the speed regulation voltage output by the 4-5 DC chopper modules is respectively sent to the corresponding electromagnetic coils; the flat teeth of the 4-5 electromagnetic coils respectively induce planar electromagnetic fields with the same polarity and strength, and the 4-5 planar magnetic fields are synthesized into a moving electromagnetic field in the vertical direction, and the moving electromagnetic field moves forward with the liquid nitrogen insulation box;The high-temperature superconducting block cooled by the liquid nitrogen evaporator becomes a superconducting coil. The superconducting coil generates a strong magnetic field of superconducting current under the induction of the moving electromagnetic field. A magnetic flux pinning effect is generated between the strong magnetic field of superconducting current and the moving electromagnetic field. The magnetic levitation force of the magnetic flux pinning between the superconducting coil and the 4-5 flat plate teeth causes the superconducting coil to be magnetically suspended and fixed at a certain height above the 4-5 flat plate teeth. The width of the superconducting coil is equal to the width of the 4-5 flat plate teeth, and the length of the superconducting coil is less than the length of the 4-5 flat plate teeth. The lower end face of the liquid nitrogen insulation box moving forward approaches the 4-5 reflective proximity switches. Under the control of the 4-5 reflective proximity switches, the moving electromagnetic field moves forward, and the positions of the front and rear ends of the superconducting coil always lag behind the positions of the front and rear ends of the moving electromagnetic field. The attraction of the magnetic flux pinning between the superconducting coil and the 4-5 flat plate teeth causes the moving electromagnetic field in front of the superconducting coil to attract the superconducting coil to move forward, and the left and right ends of the superconducting coil automatically align with the 4-5 flat plate teeth. The left and right ends of the electric vehicle are aligned, and the superconducting coil is automatically guided on the track of the hidden electromagnetic long track. The magnetic levitation force between the superconducting coil and 4-5 flat teeth makes the front end of the pure electric vehicle in a magnetic levitation state; the hidden electromagnetic long track supports the liquid nitrogen incubator, the liquid nitrogen incubator supports the parallel 4-side elevator, and the parallel 4-side elevator supports the front end of the pure electric vehicle. The front wheel of the pure electric vehicle is about 5cm away from the road surface. The magnetic levitation distance between the bottom of the liquid nitrogen incubator and the upper end of the hidden electromagnetic long track is about 5cm, so that the front wheel of the pure electric vehicle is in a magnetic levitation traction state. The pure electric vehicle is automatically guided on the hidden electromagnetic long track. The steering wheel of the pure electric vehicle loses its function. The driver only needs to pay attention to controlling the speed. If an automatic driving mode is set, the pure electric vehicle is in an artificial intelligence unmanned driving state; the magnetic levitation force between the superconducting coil and the hidden electromagnetic long track is a repulsive magnetic force, and the traction and guiding force between the superconducting coil and the hidden electromagnetic long track are attractive magnetic forces. ;

[0035] The traction of the outer electric power of a pure electric vehicle is proportional to the amplitude of the outer electric speed regulating pedal. Stepping on the outer electric speed regulating pedal can control the speed of the pure electric vehicle. The front end of the electric vehicle automatically follows the trajectory of the hidden electromagnetic long track in the magnetic levitation state, and automatically guides it to a straight or turning state; in the outer electric mode, the traction of the pure electric vehicle drives the rear wheel through the friction between the road surface and the rear wheel, and the rear wheel drives the on-board motor, and the on-board motor automatically back charges the on-board lithium battery pack through the on-board central controller. The flexible braking back charging function of the pure electric vehicle causes a certain resistance to the rear wheel; conversely, when the pure electric vehicle is traveling on an ordinary road, the inner electric speed regulating pedal is stepped on. In the inner electric mode, the pure electric vehicle relies on the on-board lithium battery pack for power supply, and the on-board motor drives the rear wheels of the pure electric vehicle; the braking functions in the inner and outer electric modes are the same.

[0036] The parallel four-sided lift is installed at the front lower end of the vehicle chassis, the front end of the vehicle chassis is welded with a front left shaft sleeve seat 47 and a front right shaft sleeve seat 48, and the rear ends of the front left shaft sleeve seat and the front right shaft sleeve seat are welded with a rear left shaft sleeve seat 49 and a rear right shaft sleeve seat 50. The specifications of the four shaft sleeve seats are the same. The inner circle of the shaft sleeves of the front left shaft sleeve seat and the front right shaft sleeve seat are loosely fitted to install a driving long shaft 51, the left end of the driving long shaft is tightly fitted to install a front left rocker arm 52, and the right end of the driving long shaft is tightly fitted to install a front right rocker arm 53; the inner circle of the shaft sleeves of the rear left shaft sleeve seat and the rear right shaft sleeve seat are loosely fitted to install a linkage long shaft 54, the left end of the linkage long shaft is tightly fitted to install a rear left rocker arm 55, and the right end of the linkage long shaft is tightly fitted to install a rear right rocker arm 56 ; The specifications of the four rocker arms are the same. The four rocker arms are drooping in a free state. The lower ends of the four rocker arms are provided with shaft holes of the same specifications. The inner circles of the shaft holes of the front left rocker arm and the front right rocker arm are loosely fitted to install the front frame shaft 57, and the inner circles of the shaft holes of the rear left rocker arm and the rear right rocker arm are loosely fitted to install the rear frame shaft 58; The movable frame is provided with a left rod 59 and a right rod 60, and the inner ends of the left and right rods are respectively welded with a front side rod 61 and a rear side rod 62, the front ends of the left and right rods are welded with the front frame shaft, and the rear ends of the left and right rods are welded with the rear frame shaft, the left rod, the right rod, the front side rod, the rear rod, the front frame shaft and the rear frame shaft constitute a movable frame, and a liquid nitrogen insulation box is installed at the lower ends of the front side rod and the rear side rod.

[0037] The left front end of the parallel four-side lift is provided with a reduction motor, which is fixed in the motor slot of the vehicle chassis, and the driving shaft of the reduction motor is the same as the driving long axis; when the driving shaft of the reduction motor rotates clockwise, it drives the four rocker arms and the movable frame to rotate clockwise to a horizontal state, and the liquid nitrogen insulation box rises to the highest position; when the driving shaft of the reduction motor rotates counterclockwise, it drives the four rocker arms and the movable frame to rotate counterclockwise to a vertical state, and the liquid nitrogen insulation box descends to the lowest position; an upper proximity switch sensor 63 is provided at the position of the vehicle chassis corresponding to the rear end of the right lower side rod, and the output end of the upper proximity switch sensor is connected to the central controller Upper input end; a sensor bracket 64 is provided at the position of the vehicle chassis corresponding to the rear right rocker arm, and a lower proximity switch sensor 65 is installed at the lower end of the sensor bracket, and the output end of the lower proximity switch sensor is connected to the lower input end of the central controller; when the right lower side rod approaches the upper proximity switch sensor, the upper proximity switch sensor outputs a trigger signal to turn off the power of the reduction motor through the central controller, and the right lower side rod rises to form a straight line with the rear right rocker arm; when the front end of the current right rocker arm approaches the lower proximity switch sensor, the lower proximity switch sensor outputs a trigger signal to turn off the power of the reduction motor through the central controller, and the right lower side rod descends to form a right angle with the front right rocker arm.

[0038] The reflective proximity switch has a short-distance position sensing function. When the parallel distance between the lower end surface of the liquid nitrogen insulation box and the road surface is less than 5 cm, the reflective proximity switch is turned on at the front end portion vertically corresponding to the liquid nitrogen insulation box, and the reflective proximity switch is turned off at the rear end portion vertically away from the liquid nitrogen insulation box. When the parallel distance between the lower end surface of the liquid nitrogen insulation box and the road surface is greater than 6 cm, the multiple reflective proximity switches covered by the liquid nitrogen insulation box are all turned off. When the length of the liquid nitrogen insulation box is less than the length of 5 flat teeth, the liquid nitrogen insulation box is turned off. When the incubator is located between the first flat tooth at the front end of the liquid nitrogen incubator and the fifth flat tooth at the rear end of the liquid nitrogen incubator, the reflective proximity switch at the front end of the first flat tooth and the reflective proximity switch at the rear end of the fifth flat tooth are both cut off, and the second, third, fourth and fifth reflective proximity switches under the cover of the liquid nitrogen incubator close to the bottom of the liquid nitrogen incubator are all turned on, and the first, second, third and fourth flat teeth under the cover of the liquid nitrogen incubator all generate vertical electromagnetic fields, and the electromagnetic fields of the four flat teeth are synthesized. To move the electromagnetic field, the moving electromagnetic field approaches the high-temperature superconducting block material to become a superconducting coil, and the superconducting coil generates a superconducting current strong magnetic field. The position of the liquid nitrogen incubator length range lags behind the positions of the first, second, third and fourth flat-plate teeth length ranges, so the position of the superconducting current strong magnetic field length range lags behind the position of the moving electromagnetic field length range, and the attraction of magnetic flux pinning between the superconducting current strong magnetic field and the moving electromagnetic field pulls the superconducting coil forward. When the front end of the liquid nitrogen incubator approaches the first reflective proximity switch and turns it on, the flat-plate teeth at the front end of the first reflective proximity switch generate an electromagnetic field in a vertical direction. When the rear end of the liquid nitrogen incubator leaves the fifth reflective proximity switch and turns it off, the electromagnetic field of the fourth flat-plate teeth disappears, and the moving electromagnetic field moving forward continues to pull the superconducting coil forward. No matter how the front and rear positions between the liquid nitrogen incubator and the hidden electromagnetic long track change, the position of the superconducting current strong magnetic field length range always lags behind the position of the moving electromagnetic field length range, and the attraction of magnetic flux pinning always pulls the superconducting coil forward.

[0039] The liquid nitrogen insulation box is made of high-strength plastic. The liquid nitrogen insulation box is provided with a square cover plate 6. A square inner chamber 7 is provided in the middle of the lower end of the square cover plate. A square shell 8 is provided at the lower end of the square cover plate. A frame connecting edge 66 is provided at the upper end of the four sides of the square shell. The frame connecting edge is consistent in size with the square cover plate. Four square sealing grooves are provided between the frame connecting edge and the square cover plate. Four square sealing rings 67 are provided in the four square sealing grooves. Four connecting screws 68 are provided at the four corners of the frame connecting edge and the square cover plate. The four connecting screws combine and install the frame connecting edge and the square cover plate. The four connecting screws fasten the frame connecting edge and the square cover plate to the lower ends of the front side rod and the rear side rod. The four square sealing rings provide sealing protection for the vacuum chambers of various parts of the liquid nitrogen insulation box. In order to increase the high-temperature superconducting block in In order to improve the stress strength during traction, guidance and magnetic suspension, a left support plate 69 and a right support plate 70 are provided at the upper end of the square inner cavity, and the left support plate and the right support plate are connected to the square cover plate. The high-temperature superconducting block is bonded to the lower end of the square inner cavity with AB glue and integrated with the square inner cavity. The strip groove frame at the center line of the bottom of the shell is supported on the center line of the bottom of the high-temperature superconducting block. In order to shorten the distance between the high-temperature superconducting block and the hidden electromagnetic long track, the spacing distance of the lower vacuum cavity between the high-temperature superconducting block and the bottom of the square shell is smaller than the distance between the upper vacuum cavity, the left vacuum cavity, the right vacuum cavity, the front vacuum cavity and the rear vacuum cavity. The upper vacuum cavity, the left vacuum cavity, the right vacuum cavity, the front vacuum cavity and the rear vacuum cavity are connected to each other. In order to facilitate the vacuum chamber to be evacuated, an exhaust valve 71 is provided at the front end of the square shell.

[0040] The hidden electromagnetic long track is composed of a plurality of electromagnetic track units of the same model connected together, the length of the electromagnetic track unit is 10 meters, for the transmission of photoelectric signals and the protection of the electromagnetic track unit, the surface of the electromagnetic track unit is provided with a groove-shaped transparent shell 1, the length of the groove-shaped transparent shell is 10 meters, the groove-shaped transparent shell seals and packages the I-shaped iron core track, a plurality of electromagnetic coils, a plurality of reflective proximity switches and a plurality of infrared communication receiving heads of the electromagnetic track unit, the lower end of the groove-shaped transparent shell is provided with a left sealing edge 72 and a right sealing edge 73, the left sealing edge is installed between the negative pole transmission copper busbar and the strip bottom plate, the right sealing edge is installed between the positive pole transmission copper busbar and the strip bottom plate, when the plurality of electromagnetic track units are connected and installed, The butt joints of the front and rear ends of the trough-shaped transparent shell are welded as a whole; the upper spaces of the negative transmission copper busbar and the positive transmission copper busbar are filled with asphalt mixture 2, the upper plane of the asphalt mixture and the upper plane of the trough-shaped transparent shell are consistent with the plane of the asphalt road, the asphalt mixture and the asphalt road surface are fused as a whole, and the hidden electromagnetic long track and the asphalt road surface are firmly formed as an integral plane. Because the I-shaped iron core track has a large load-bearing strength, the hidden electromagnetic long track can withstand the crushing of heavy vehicles; the electromagnetic track unit is provided with a straight type and a curved type. The hidden electromagnetic long track of the straight route adopts the connection of multiple straight electromagnetic track units, and the hidden electromagnetic long track of the turning route adopts the connection of multiple curved electromagnetic track units.

Claims

1. A pure electric vehicle high temperature superconducting flux pinning guide traction device, comprising a pure electric vehicle, an on-board motor, an on-board lithium battery pack, an on-board central controller, a charging road while driving, a hidden electromagnetic long track, an electromagnetic track unit, an I-shaped iron core track, an independent control drive unit, an electromagnetic coil, a track circuit board, a DC chopper module, a reflective proximity switch, an infrared communication receiving head, a positive power transmission copper bar, a negative power transmission copper bar, an infrared communication transmitting bar, an inner electric speed regulating pedal, an outer electric speed regulating pedal, an inner speed regulating sensor, an outer speed regulating sensor, a high temperature superconducting block, a liquid nitrogen insulation box, a liquid nitrogen refrigerator, a parallel four-side elevator and a medium voltage DC power supply station, characterized in that: The pure electric vehicle high-temperature superconducting flux pinning guide traction device is equivalent to a linear motor. A hidden electromagnetic long track is arranged at the lower end of the road surface of the driving and charging highway, and the hidden electromagnetic long track is equivalent to the long stator of the linear motor. A high-temperature superconducting device is arranged at the front end of the chassis of the pure electric vehicle, and the high-temperature superconducting device is equivalent to the short mover of the linear motor. The hidden electromagnetic long track is composed of a plurality of independent control drive units of the same specification. A superconducting coil is arranged at the lower end of the high-temperature superconducting device. The superconducting coil moves forward near a plurality of reflective proximity switches of the plurality of independent control drive units. After the plurality of independent control drive units are energized, a mobile electromagnetic field is generated. The mobile electromagnetic field induces the superconducting coil. The front wheels of the pure electric vehicle are in a magnetic suspension state of the flux pinning effect. The mobile electromagnetic field attracts the superconducting coil to move forward. Under the external force traction of the hidden electromagnetic long track and the intelligent control of the on-board central controller, the on-board motor of the pure electric vehicle can automatically charge the on-board lithium battery pack. The charging-while-driving highway is based on existing ordinary highways and expressways as well as all highways inside and outside the city, and a hidden electromagnetic long track is directly installed under the straight lanes, left-turn lanes and right-turn lanes of various highways; the hidden electromagnetic long track is a hidden traction guide track buried under the road surface, the width of the hidden electromagnetic long track is about 30 cm, the height is about 5 cm, and the length is the length of the charging-while-driving highway; on the road surface of the asphalt highway, a long track groove is excavated with a cutting machine and a chiseling tool, the length of the long track groove is the length of the charging-while-driving highway, the width is slightly larger than the width of the hidden electromagnetic long track, and the depth is equal to the height of the hidden electromagnetic long track. The hidden electromagnetic long track is placed at the bottom of the long track groove, and the surface of the hidden electromagnetic long track is A groove-shaped transparent shell (1) is provided on the surface, the groove-shaped transparent shell is made of high-strength transparent plastic, asphalt mixture (2) is filled between the groove-shaped transparent shell and the long track groove, the upper end plane of the groove-shaped transparent shell and the upper end plane of the asphalt mixture are consistent with the plane of the asphalt road, the groove-shaped transparent shell is closely attached to the hidden electromagnetic long track, and has the protective effect of preventing rain erosion and rolling damage; the groove-shaped transparent shell is conducive to the transmission of photoelectric signals between the liquid nitrogen insulation box and the hidden electromagnetic long track, and the groove-shaped transparent shell forms a transparent long line mark parallel to the driving and charging road and different in color from the road surface; the driving and charging road is compatible with ordinary roads and expressways as well as all roads inside and outside the city, pure electric vehicles share road resources with all other motor vehicles, and the driving and charging road does not affect the passage of any motor vehicle; A parallel four-sided lift is provided at the front lower end of a chassis (3) of a pure electric vehicle, a movable frame (4) is provided at the lower end of the parallel four-sided lift, a reduction motor (5) is provided at the front end of the movable frame, a liquid nitrogen insulation box is installed at the lower end of the movable frame, the liquid nitrogen insulation box is provided with a square cover plate (6), a square outer shell (7) is provided at the lower end of the square cover plate, a square inner chamber (8) is provided in the middle of the liquid nitrogen insulation box, and in order to ensure good heat preservation of the square inner chamber, an insulating upper vacuum chamber (9), a lower vacuum chamber (10), a front vacuum chamber (11), a rear vacuum chamber (12), a left vacuum chamber (13) and a right vacuum chamber (14) are provided between the square outer shell and the square inner chamber; the square A square high-temperature superconducting block (15) is bonded to the bottom of the inner chamber with AB glue. A square liquid nitrogen evaporator (16) is provided above the high-temperature superconducting block. The liquid nitrogen evaporator and the high-temperature superconducting block are tightly combined, which is conducive to heat conduction. A high-pressure liquid nitrogen pipe (17) and a low-pressure suction pipe (18) are provided at the upper end of the liquid nitrogen evaporator. The high-pressure liquid nitrogen pipe and the low-pressure suction pipe are led out through the upper vacuum chamber and the pipe holes on the square cover plate. The liquid nitrogen refrigerator comprises a nitrogen compressor, a liquid nitrogen condenser and a cooling fan. A nitrogen compressor (19) is provided at the front upper end of the vehicle chassis. A liquid nitrogen condenser (20) is provided at the front end of the nitrogen compressor. A cooling fan (21) is provided in the chamber, a high-pressure output pipe (22) of the nitrogen compressor is connected to the input end of the liquid nitrogen condenser, and the nitrogen compressor outputs high-pressure hot nitrogen with a pressure greater than 100 MPa to the liquid nitrogen condenser when in operation. The high-pressure hot nitrogen in the liquid nitrogen condenser is cooled by the cooling fan to become liquid nitrogen, and the liquid nitrogen enters the liquid nitrogen evaporator through the high-pressure liquid nitrogen pipe and the capillary tube for evaporation and refrigeration, and the output end of the liquid nitrogen evaporator is connected to the low-pressure input end of the nitrogen compressor; the refrigeration temperature of the liquid nitrogen evaporator is below minus 196 degrees Celsius, and the closely contacting connection surface between the liquid nitrogen evaporator and the high-temperature superconducting block has good heat conduction, so that the cooling temperature of the high-temperature superconducting block is At minus 196 degrees Celsius, the resistance of the high-temperature superconducting block at minus 196 degrees Celsius is zero, and it becomes a superconducting coil; when the electromagnetic coil of the hidden electromagnetic long track is energized, a vertical electromagnetic field is generated. When the hidden electromagnetic long track approaches the superconducting coil, the electromagnetic field of the electromagnetic coil induces the induced current of the superconducting coil to continue to exist in the superconducting coil. When the electromagnetic field of the electromagnetic coil reaches a certain intensity, the superconducting coil generates a vertical pinning magnetic flux strong magnetic field, which makes the high-temperature superconducting block magnetically suspended above the hidden electromagnetic long track and fixed at a certain distance. This is the state of magnetic flux pinning effect between the high-temperature superconducting block and the hidden electromagnetic long track; Under the action of external force, the magnetic flux pinning effect between the high-temperature superconducting block and the hidden electromagnetic long track has both repulsive magnetic force and attractive magnetic force. When the external force makes the high-temperature superconducting block approach the hidden electromagnetic long track, it is a repulsive magnetic force. When the external force makes the high-temperature superconducting block leave the hidden electromagnetic long track, it is an attractive magnetic force. The high-temperature superconducting pinning magnetic flux traction pure electric vehicle device designs the electromagnetic field of the hidden electromagnetic long track as a mobile electromagnetic field. The mobile electromagnetic field uses the magnetic flux pinning effect of the high-temperature superconducting block to pull the superconducting coil, thereby achieving the purpose of pulling and guiding the pure electric vehicle by the pinning magnetic flux effect. A strip-shaped slot frame (23) is provided at the center line of the bottom of the shell of the liquid nitrogen insulation box. The strip-shaped slot frame is longitudinal. The upper end of the strip-shaped slot frame is supported at the center line of the bottom of the high-temperature superconducting block. An infrared communication transmitting strip (24) is provided in the strip-shaped slot at the lower end of the strip-shaped slot frame. The infrared communication transmitting strip is composed of a plurality of closely arranged infrared communication transmitting heads (25). The output ends of the plurality of identical infrared communication transmitting heads are connected in parallel to the input end of the central controller (26); In a pure electric vehicle driving room, an inner electric speed regulating pedal (27) is provided at the position of the driver's right foot, an outer electric speed regulating pedal (28) is provided to the right of the inner electric speed regulating pedal, an inner speed regulating sensor (29) is provided at the lower end of the inner electric speed regulating pedal, and an outer speed regulating sensor (30) is provided at the lower end of the outer electric speed regulating pedal. The inner and outer speed regulating sensors are respectively connected to the inner input end and the outer input end of the vehicle-mounted central controller. When the driver steps on the inner electric speed regulating pedal, the pure electric vehicle operates in an inner electric mode, and the inner electric speed regulating signal passes through the vehicle-mounted central controller to control the vehicle-mounted motor. In the inner electric mode, the original inner electric driving function of the pure electric vehicle remains unchanged; when the driver steps on the outer electric speed regulating pedal, the pure electric vehicle operates in an outer electric mode, and the outer electric speed regulating signal passes through the vehicle-mounted central controller to turn on the power supply of the reduction motor, the reduction motor drives the movable frame, the liquid nitrogen incubator descends, and the bottom of the liquid nitrogen incubator approaches a plurality of reflective proximity switches (31) of the hidden electromagnetic long track. The plurality of reflective proximity switches output switch trigger signals to a plurality of DC chopper modules (31). 2) trigger end, turn on the DC power supply of multiple electromagnetic coils (33); the external electric speed control signal outputs a modulation signal to the input end of the infrared communication transmitter through the on-board central controller, the infrared communication transmitter transmits the infrared speed control signal, and the infrared communication receiver can receive the infrared speed control signal only after the infrared communication transmitter approaches the multiple infrared communication receiving heads (34) of the hidden electromagnetic long track, and the multiple infrared speed control signals are respectively input to the speed control ends of multiple DC chopper modules, and the multiple DC chopper modules output speed control DC voltages to the multiple electromagnetic coils, and the multiple electromagnetic coils respectively generate multiple electromagnetic fields in the vertical direction that follow the movement of the liquid nitrogen insulation box, and the multiple identical electromagnetic fields synthesize a moving electromagnetic field, and the moving electromagnetic field induces the superconducting coil to generate a strong superconducting current, and the superconducting current generates a strong electromagnetic field with a magnetic flux pinning effect, and the moving electromagnetic field pulls the strong electromagnetic field of the high-temperature superconducting block material to drive the pure electric vehicle to move forward, and the rear wheel of the pure electric vehicle drives the on-board motor, and the on-board motor reversely charges the on-board lithium battery pack, so as to achieve the purpose of charging while the pure electric vehicle is driving; The hidden electromagnetic long track is composed of a plurality of electromagnetic track units of the same model connected together, wherein the electromagnetic track unit is provided with an I-shaped iron core track, the length of the I-shaped iron core track is 10 meters, the width is less than 30 cm, and the height is about 5 cm. The I-shaped iron core track is provided with a strip bottom plate (35), the upper end of the strip bottom plate is provided with a plurality of equally divided iron core columns (36) of the same specification, the upper end of the iron core columns is provided with a plurality of flat plate teeth (37) of the same specification, and the plurality of flat plate teeth are provided with equally divided tooth gaps between the plurality of flat plate teeth. The strip bottom plate, the plurality of iron core columns, and the plurality of flat plate teeth are integrally cast into the I-shaped iron core track, the periphery of the plurality of iron core columns forms a plurality of coil slots, and the plurality of coil slots are all wound with electromagnetic coils (33) with the same number of turns and the same direction; a negative pole transmission copper bar (38) is provided at the upper left end of the strip bottom plate, the length of the negative pole transmission copper bar is 10 meters, and the negative pole transmission copper bar is connected to the strip bottom plate by a plurality of left screws (39); a track circuit is provided at the upper right end of the strip bottom plate The track circuit board and the strip bottom plate are connected by a plurality of right screws (41); a plurality of DC chopper modules (32) are welded to the right lower end of the track circuit board; the track circuit board and the plurality of DC chopper modules form a DC chopper module; a positive power transmission copper bar (42) is welded to the right upper end of the track circuit board; the length of the positive power transmission copper bar is 10 meters; a plurality of module lead welding points (43) are arranged on the track circuit board at the right end of the positive power transmission copper bar; when a plurality of electromagnetic track units are butt-jointed and installed, the front and rear ends of the plurality of positive power transmission copper bars are welded as a whole; the front and rear ends of the plurality of negative power transmission copper bars are welded as a whole; a plurality of equally divided medium-voltage DC power supply stations (44) are arranged near the driving and charging highway; the positive output lines (45) of the medium-voltage DC power supply of the power supply station are welded to the corresponding positive power transmission copper bar through underground cables; and the negative output lines (46) of the medium-voltage DC power supply of the power supply station are welded to the corresponding negative power transmission copper bar through underground cables; The electromagnetic track unit is provided with a plurality of independent control drive units of the same specification, the independent control drive units are composed of a circuit connection of a corresponding electromagnetic coil, a DC chopper module, a reflective proximity switch, an infrared communication receiving head, a positive power transmission copper bar and a negative power transmission copper bar, at a corresponding position in the horizontal direction, the head end wire of the electromagnetic coil is welded to the negative power transmission copper bar, the tail end wire of the electromagnetic coil is welded to the corresponding module lead welding point, and the output end of the corresponding DC chopper module is connected through the module lead welding point, the power supply ends of the plurality of DC chopper modules are connected to the positive power transmission copper bar, and the ground ends of the plurality of DC chopper modules are connected to the strip bottom plate through the track circuit board and a plurality of right screws; the right part of the plurality of tooth gaps is provided with a reflective proximity switch (31), and the upper end plane of the reflective proximity switch is consistent with the upper end plane of the flat tooth; The reflective proximity switch of the independent control drive unit is located at the rear end of the corresponding electromagnetic coil, the output line of the reflective proximity switch is welded on the corresponding module lead welding, and is connected to the trigger end of the corresponding DC chopper module through the module lead welding point; an infrared communication receiving head (34) is provided in the middle of the plurality of tooth gaps, and the upper end plane of the infrared communication receiving head is consistent with the upper end plane of the flat tooth; the infrared communication receiving head of the independent control drive unit is located at the rear end of the corresponding electromagnetic coil, the output line of the infrared communication receiving head is welded on the corresponding module lead welding, and is connected to the speed regulating end of the corresponding DC chopper module through the module lead welding point; When the pure electric vehicle enters the driving and charging highway in the inner electric mode, first the center line of the chassis is located at the transparent long line mark. After the right foot releases the inner electric speed control pedal, the right foot steps on the outer electric speed control pedal, the outer speed control sensor outputs a trigger signal to the central controller, and the pure electric vehicle automatically switches to the outer electric mode. The central controller controls the reduction motor to drive the movable frame of the parallel 4-side elevator to drop into place, and the uniform air gap between the lower end face of the liquid nitrogen insulation box and the road surface is about 1 cm; the center line of the chassis of the pure electric vehicle is located on the hidden electromagnetic long track for driving. Within the length range of the lower end face of the liquid nitrogen insulation box, corresponding to the multiple reflective proximity switches on the hidden electromagnetic long track, there will always be 4-5 reflective proximity switches close to the lower end face of the liquid nitrogen insulation box, and the 4-5 reflective proximity switches are all turned on, and the reflective proximity switches outside the lower end face of the insulation box are all in the cut-off state. The 4-5 reflective proximity switches output trigger signals to the corresponding trigger ends of the DC chopper modules, and the 4-5 independent control drives The power of the unit is turned on; when the center line of the vehicle chassis is located at the transparent long line mark, the infrared communication transmitting bar at the lower end of the liquid nitrogen insulation box corresponds to the multiple infrared communication receiving heads of the hidden electromagnetic long track, the coverage range of the infrared communication transmitting bar is close to 4-5 infrared communication receiving heads, and the 4-5 infrared communication receiving heads all receive the voltage regulation signal, and the infrared communication receiving heads outside the range of the infrared communication transmitting bar cannot receive the voltage regulation signal, and the 4-5 infrared communication receiving heads output the voltage regulation signal to the corresponding speed regulation end of the DC chopper module respectively, and at the same time, the power supply of 4-5 independent control drive units is regulated, and the speed regulation voltage output by the 4-5 DC chopper modules is proportional to the foot pedal amplitude of the external electric speed regulation pedal, and the speed regulation voltage output by the 4-5 DC chopper modules is respectively sent to the corresponding electromagnetic coils; the flat teeth of the 4-5 electromagnetic coils respectively induce planar electromagnetic fields with the same polarity and strength, and the 4-5 planar electromagnetic fields become moving electromagnetic fields in the vertical direction, and the moving electromagnetic fields move forward with the liquid nitrogen insulation box;The high-temperature superconducting block cooled by the liquid nitrogen evaporator becomes a superconducting coil. The superconducting coil generates a strong magnetic field of superconducting current under the induction of the moving electromagnetic field. A flux pinning effect is generated between the strong magnetic field of superconducting current and the moving electromagnetic field. The magnetic levitation force of the flux pinning between the superconducting coil and the 4-5 flat plate teeth makes the superconducting coil magnetically suspended and fixed at a certain height above the 4-5 flat plate teeth. The width of the superconducting coil is equal to the width of the 4-5 flat plate teeth, and the length of the superconducting coil is less than the length of the 4-5 flat plate teeth. The lower end face of the liquid nitrogen insulation box moving forward approaches the 4-5 reflective proximity switches. Under the control of the 4-5 reflective proximity switches, the moving electromagnetic field moves forward. The positions of the front and rear ends of the superconducting coil always lag behind the positions of the front and rear ends of the moving electromagnetic field. The attraction of the flux pinning between the superconducting coil and the 4-5 flat plate teeth makes the moving electromagnetic field in front of the superconducting coil attract the superconducting The coil moves forward, and the left and right ends of the superconducting coil are automatically aligned with the left and right ends of the 4-5 flat teeth. The superconducting coil is automatically guided on the track of the hidden electromagnetic long track. The magnetic levitation force between the superconducting coil and the 4-5 flat teeth puts the front end of the pure electric vehicle in a magnetic levitation state; the hidden electromagnetic long track supports the liquid nitrogen insulation box, the liquid nitrogen insulation box supports the parallel 4-side elevator, the parallel 4-side elevator supports the front end of the pure electric vehicle, the front wheel of the pure electric vehicle is about 5cm away from the road surface, and the magnetic levitation distance between the bottom surface of the liquid nitrogen insulation box and the upper end surface of the hidden electromagnetic long track is about 5cm, so that the front wheel of the pure electric vehicle is in a magnetic levitation traction state, the pure electric vehicle is automatically guided on the hidden electromagnetic long track, the steering wheel of the pure electric vehicle loses its function, and the driver only needs to pay attention to controlling the speed. If an assisted driving function is provided, the pure electric vehicle can travel in an artificial intelligence unmanned driving state; The magnetic levitation force between the superconducting coil and the hidden electromagnetic long track is a repulsive magnetic force, and the traction and guiding force between the superconducting coil and the hidden electromagnetic long track is an attractive magnetic force; The traction of the outer electric power of a pure electric vehicle is proportional to the amplitude of the outer electric speed regulating pedal. Stepping on the outer electric speed regulating pedal can control the speed of the pure electric vehicle. The front end of the electric vehicle automatically follows the trajectory of the hidden electromagnetic long track in the magnetic levitation state, and automatically guides it to a straight or turning state; in the outer electric mode, the traction of the pure electric vehicle drives the rear wheel through the friction between the road surface and the rear wheel, and the rear wheel drives the on-board motor, and the on-board motor automatically back charges the on-board lithium battery pack through the on-board central controller. The flexible braking back charging function of the pure electric vehicle causes a certain resistance to the rear wheel; conversely, when the pure electric vehicle is traveling on an ordinary road, the inner electric speed regulating pedal is stepped on. In the inner electric mode, the pure electric vehicle relies on the on-board lithium battery pack for power supply, and the on-board motor drives the rear wheels of the pure electric vehicle; the braking functions in the inner and outer electric modes are the same.

2. The high temperature superconducting flux pinning guide traction device for pure electric vehicles according to claim 1, characterized in that: The parallel four-side lift is installed at the front lower end of the vehicle chassis, the front end of the vehicle chassis is welded with a front left shaft sleeve seat (47) and a front right shaft sleeve seat (48), and the rear ends of the front left shaft sleeve seat and the front right shaft sleeve seat are welded with a rear left shaft sleeve seat (49) and a rear right shaft sleeve seat (50), the specifications of the four shaft sleeve seats are the same, the shaft sleeve inner circle of the front left shaft sleeve seat and the front right shaft sleeve seat is loosely fitted to install the driving long shaft (51), the left end of the driving long shaft is tightly fitted to install the front left rocker arm (52), and the right end of the driving long shaft is tightly fitted to install the front right rocker arm (53); the shaft sleeve inner circle of the rear left shaft sleeve seat and the rear right shaft sleeve seat is loosely fitted to install the linkage long shaft (54), the left end of the linkage long shaft is tightly fitted to install the rear left rocker arm (55), and the right end of the linkage long shaft is tightly fitted to install the rear right rocker arm (56); the specifications of the four rocker arms are the same, the four rocker arms are drooping in a free state, the lower ends of the four rocker arms are provided with shaft holes of the same specifications, the inner circles of the shaft holes of the front left rocker arm and the front right rocker arm are loosely fitted to install the front frame shaft (57), and the inner circles of the shaft holes of the rear left rocker arm and the rear right rocker arm are loosely fitted to install the rear frame shaft (58); the movable frame is provided with a left rod (59) and a right rod (60), the inner ends of the left and right rods are respectively welded with a front side rod (61) and a rear side rod (62), the front ends of the left and right rods are welded with the front frame shaft, and the rear ends of the left and right rods are welded with the rear frame shaft. The left rod, the right rod, the front side rod, the rear rod, the front frame shaft and the rear frame shaft constitute the movable frame, and the lower ends of the front side rod and the rear side rod are installed with a liquid nitrogen insulation box.

3. The high temperature superconducting magnetic flux pinning guide traction device for pure electric vehicles according to claim 1, characterized in that: The left front end of the parallel four-sided lift is provided with a reduction motor, which is fixed in a motor slot of the vehicle chassis, and the driving shaft of the reduction motor is the same as the driving long shaft; when the driving shaft of the reduction motor rotates clockwise, it drives the four rocker arms and the movable frame to rotate clockwise to a horizontal state, and the liquid nitrogen insulation box rises to the highest position; when the driving shaft of the reduction motor rotates counterclockwise, it drives the four rocker arms and the movable frame to rotate counterclockwise to a vertical state, and the liquid nitrogen insulation box descends to the lowest position; an upper proximity switch sensor (63) is provided at a position of the vehicle chassis corresponding to the rear end of the right lower side rod, and the output end of the upper proximity switch sensor is connected to the upper An input end; a sensor bracket (64) is provided at a position of the vehicle chassis corresponding to the rear right rocker arm, a lower proximity switch sensor (65) is installed at the lower end of the sensor bracket, and an output end of the lower proximity switch sensor is connected to a lower input end of the central controller; when the right lower side bar approaches the upper proximity switch sensor, the upper proximity switch sensor outputs a trigger signal that passes through the central controller to turn off the power of the reduction motor, and the right lower side bar rises to form a straight line with the rear right rocker arm; when the front end of the current right rocker arm approaches the lower proximity switch sensor, the lower proximity switch sensor outputs a trigger signal that passes through the central controller to turn off the power of the reduction motor, and the right lower side bar descends to form a right angle with the front right rocker arm.

4. The high temperature superconducting magnetic flux pinning guide traction device for pure electric vehicles according to claim 1, characterized in that: The reflective proximity switch has a short-distance position sensing function. When the parallel distance between the lower end surface of the liquid nitrogen insulation box and the road surface is less than 5 cm, the reflective proximity switch is turned on at the front end portion vertically corresponding to the liquid nitrogen insulation box, and the reflective proximity switch is turned off at the rear end portion vertically away from the liquid nitrogen insulation box. When the parallel distance between the lower end surface of the liquid nitrogen insulation box and the road surface is greater than 6 cm, the multiple reflective proximity switches covered by the liquid nitrogen insulation box are all turned off. When the length of the liquid nitrogen insulation box is less than the length of 5 flat teeth, the liquid nitrogen insulation box is turned off. When the incubator is located between the first flat tooth at the front end of the liquid nitrogen incubator and the fifth flat tooth at the rear end of the liquid nitrogen incubator, the reflective proximity switch at the front end of the first flat tooth and the reflective proximity switch at the rear end of the fifth flat tooth are both cut off, and the second, third, fourth and fifth reflective proximity switches under the cover of the liquid nitrogen incubator close to the bottom of the liquid nitrogen incubator are all turned on, and the first, second, third and fourth flat teeth under the cover of the liquid nitrogen incubator all generate vertical electromagnetic fields, and the electromagnetic fields of the four flat teeth are synthesized. To move the electromagnetic field, the moving electromagnetic field approaches the high-temperature superconducting block material to become a superconducting coil, and the superconducting coil generates a superconducting current strong magnetic field. The position of the liquid nitrogen incubator length range lags behind the positions of the first, second, third and fourth flat-plate teeth length ranges, so the position of the superconducting current strong magnetic field length range lags behind the position of the moving electromagnetic field length range, and the attraction of magnetic flux pinning between the superconducting current strong magnetic field and the moving electromagnetic field pulls the superconducting coil forward. When the front end of the liquid nitrogen incubator approaches the first reflective proximity switch and turns it on, the flat-plate teeth at the front end of the first reflective proximity switch generate an electromagnetic field in a vertical direction. When the rear end of the liquid nitrogen incubator leaves the fifth reflective proximity switch and turns it off, the electromagnetic field of the fourth flat-plate teeth disappears, and the moving electromagnetic field moving forward continues to pull the superconducting coil forward. No matter how the front and rear positions between the liquid nitrogen incubator and the hidden electromagnetic long track change, the position of the superconducting current strong magnetic field length range always lags behind the position of the moving electromagnetic field length range, and the attraction of magnetic flux pinning always pulls the superconducting coil forward.

5. The high temperature superconducting magnetic flux pinning guide traction device for pure electric vehicles according to claim 1, characterized in that: The liquid nitrogen insulation box is made of high-strength plastic. The liquid nitrogen insulation box is provided with a square cover plate (6). A square inner chamber (7) is provided in the middle of the lower end of the square cover plate. A square outer shell (8) is provided at the lower end of the square cover plate. A frame connecting edge (66) is provided at the upper end of four sides of the square outer shell. The frame connecting edge is consistent in size with the square cover plate. Four square sealing grooves are provided between the frame connecting edge and the square cover plate. Four square sealing rings (67) are provided in the four square sealing grooves. Four connecting screws (68) are provided at four corners of the frame connecting edge and the square cover plate. The four connecting screws are used to combine and install the frame connecting edge and the square cover plate. The four connecting screws are used to fasten the frame connecting edge and the square cover plate to the lower ends of the front side rod and the rear side rod. The four square sealing rings provide sealing protection for the vacuum chambers of various parts of the liquid nitrogen insulation box. In order to increase the high-temperature superconducting The force strength of the block material during traction, guidance and magnetic suspension is improved. A left support plate (69) and a right support plate (70) are provided at the upper end of the square inner chamber. The left support plate and the right support plate are connected to the square cover plate. The high-temperature superconducting block material is bonded to the lower end of the square inner chamber with AB glue to be integrated with the square inner chamber. The strip-shaped slot frame at the center line of the bottom of the shell is supported at the center line of the bottom of the high-temperature superconducting block material. In order to shorten the distance between the high-temperature superconducting block material and the hidden electromagnetic long track, the spacing distance of the lower vacuum chamber between the high-temperature superconducting block material and the bottom of the square shell is smaller than the distance between the upper vacuum chamber, the left vacuum chamber, the right vacuum chamber, the front vacuum chamber and the rear vacuum chamber. The upper vacuum chamber, the left vacuum chamber, the right vacuum chamber, the front vacuum chamber and the rear vacuum chamber are interconnected. In order to facilitate the exhaust of the vacuum chamber, an exhaust valve (71) is provided at the front end of the square shell.

6. The high temperature superconducting flux pinning guide traction device for pure electric vehicles according to claim 1, characterized in that: The hidden electromagnetic long track is composed of a plurality of electromagnetic track units of the same model connected together, the length of the electromagnetic track unit is 10 meters, and for the transmission of photoelectric signals and the protection of the electromagnetic track unit, the surface of the electromagnetic track unit is provided with a groove-shaped transparent shell (1), the length of the groove-shaped transparent shell is 10 meters, the groove-shaped transparent shell seals and packages the I-shaped iron core track, a plurality of electromagnetic coils, a plurality of reflective proximity switches and a plurality of infrared communication receiving heads of the electromagnetic track unit, and the lower end of the groove-shaped transparent shell is provided with a left sealing edge (72) and a right sealing edge (73), the left sealing edge is installed between the negative pole transmission copper busbar and the strip bottom plate, and the right sealing edge is installed between the positive pole transmission copper busbar and the strip bottom plate, and the plurality of electromagnetic track units are connected and installed. When the asphalt mixture is connected to the asphalt road surface, the butt joints at the front and rear ends of the trough-shaped transparent shell are welded as a whole; the upper end spaces of the negative power transmission copper bar and the positive power transmission copper bar are filled with asphalt mixture (2); the upper end plane of the asphalt mixture and the upper end plane of the trough-shaped transparent shell are both consistent with the asphalt road surface; the asphalt mixture and the asphalt road surface are fused as a whole; the hidden electromagnetic long track and the asphalt road surface are firmly formed as an integral plane; because the I-shaped iron core track has a large load-bearing strength, the hidden electromagnetic long track can withstand the rolling of heavy vehicles; the electromagnetic track unit is provided with a straight type and a curved type; the hidden electromagnetic long track of the straight route adopts the connection of multiple straight electromagnetic track units, and the hidden electromagnetic long track of the turning route adopts the connection of multiple curved electromagnetic track units.

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