222 results about "Micromotor" patented technology

The invention belongs to the technical field of micro-nano, and particularly relates to a drug-loaded microalgae motor and a preparation method and application thereof, and the drug-loaded microalgae motor comprises a polydopamine / ferroferric oxide / chlamydomonas reinhardtii micromotor and a drug loaded on the polydopamine / ferroferric oxide / chlamydomonas reinhardtii micromotor, the drug is combined with catechol groups on the surface of polydopamine in the polydopamine / ferroferric oxide / chlamydomonas reinhardtii micromotor through covalent bonds; the medicine is an anti-cancer medicine or an anti-inflammatory medicine. The microalgae motor has the characteristics of simple preparation method, good material biocompatibility, high biodegradability and the like. The polydopamine / ferroferric oxide / chlamydomonas reinhardtii drug-loaded micromotor prepared by the invention has the characteristic of self-driving in intestinal juice, so that the polydopamine / ferroferric oxide / chlamydomonas reinhardtii drug-loaded micromotor can target an intestinal disease part under the guidance of an external magnetic field to improve the treatment effect and reduce the side effect of a drug, thereby expanding the application space of a micro-nano motor in the field of biomedicine.

The invention relates to the technical field of pan-tilt motor control, in particular to an intelligent control method for an unmanned aerial vehicle pan-tilt stability augmentation micro motor. Synchronously acquiring operation parameter time sequence data, image data, flight attitude data, environment wind speed, pan-tilt motor power and rotating speed of the unmanned aerial vehicle; constructing a state fluctuation index (based on operation parameter time sequence data) and a flight attitude deviation degree (fusing wind speed change and flight attitude deviation), and further generating a wind resistance capability index to evaluate the influence degree of the environment on the unmanned aerial vehicle; meanwhile, on the basis of the change characteristics of the parting attitude data, the compensation effect of the pan-tilt motor is quantified by combining the image fuzziness, the power of the motor and the rotating speed fluctuation; finally, PID parameters are dynamically optimized based on double indexes of the wind resistance and the compensation effect, scene adaptation of a pan-tilt motor control strategy is achieved, the stability of the unmanned aerial vehicle is improved in a complex wind field, and the image data quality is guaranteed.

The invention discloses a two-phase-driven piezoelectric traveling wave micro-motor structure and a preparation method, and belongs to the field of micro-motors, the two-phase-driven piezoelectric traveling wave micro-motor structure comprises piezoelectric ceramic films arranged in partitions, upper electrodes arranged in partitions and lower electrodes arranged in partitions, and in corresponding partitions, the upper electrodes and the lower electrodes of the corresponding partitions are connected with the corresponding piezoelectric ceramic films respectively; the polarization characteristics of the piezoelectric ceramic films can be the same or different; when the same conditions are met, the first piezoelectric ceramic film is connected with an upper electrode and a sin signal, the lower electrode is connected with GND, the second piezoelectric ceramic film is connected with an upper electrode and a cos signal, the lower electrode is connected with GND, the third piezoelectric ceramic film is connected with an upper electrode and a GND, the lower electrode is connected with a sin signal, the fourth piezoelectric ceramic film is connected with an upper electrode and a GND, and the lower electrode is connected with a cos signal; the wiring of the four piezoelectric films in one period is the same, and the arrays in other periods are repeated and are the same in sequence. The size and power consumption of the driving circuit are reduced, and batch manufacturing is easy.

The invention belongs to the technical field of biological medicines and micro-nano motors, and particularly relates to a self-driven micro-motor system for treating helicobacter pylori gastritis and a preparation method of the self-driven micro-motor system. A self-driven micro-motor system with an active targeting function is constructed, the drug coated on the PLGA layer can be any substance with antibacterial activity or capable of promoting gastric mucosa repair, and the drug loading capacity and the sustained release time can be adjusted by adjusting the thickness of the PLGA interlayer. The selection of the enteric coating layer mainly considers the good electrostatic targeting property and pH response release property of the enteric coating layer, and various types of enteric coatings can be selected to adjust pH nodes released by the shell.

The utility model relates to a hollow cup winding structure, a micro motor and a power device. All turns in the same winding are connected in series head to tail through a first wiring element to form a first wiring structure, and the head end and the tail end of the first wiring structure of the same phase line are connected in series head to tail through a second wiring element to form a second wiring structure, and then one end of each second wiring structure is electrically connected together through the second wiring element, and the other end of each second wiring structure is electrically connected to the outside through the second wiring element. By electrically connecting different wire ends to the first wiring element and the second wiring element respectively, the electrical connection of the wire ends can be transferred to the external space to avoid operation in a small space, and can also avoid connection defects such as cold soldering.

The invention discloses a portable fan based on a three-phase micromotor, the portable fan comprises a power supply circuit, a controller, a drive axle circuit and the three-phase micromotor, the power supply circuit comprises a rechargeable battery, and the power supply circuit is connected with a power supply end of the controller and a power supply bus of the drive axle circuit; a driving pin of the controller is connected with a driven end of the drive axle circuit, three output ends of the drive axle circuit are connected with three electrodes of the three-phase micromotor, and the controller is used for outputting a driving signal to drive the drive axle circuit to generate three-phase alternating current of sine waves to drive the three-phase micromotor to start, stop or regulate the speed. The drive axle circuit is directly controlled by the controller, so that a drive chip of the drive axle circuit is omitted, and the cost is saved; on the other hand, compared with square wave driving, three-phase current driving based on smoother sine waves greatly reduces noise and power consumption of the three-phase micromotor, and the cruising ability is improved.

The invention relates to the technical field of food detection, and discloses a food heavy metal detector and a use method thereof.The food heavy metal detector comprises a rack, a detection unit is installed on the rack, a test tube rack is rotationally connected to the interior of the rack, a plurality of detection tubes are installed in the test tube rack, and a composite discharging assembly is arranged in the rack; the composite discharging assembly comprises two micromotors which are symmetrically installed on the outer surface of the rack, the test tube rack rotates, the test tube rack rotates and vibrates at the same time through a telescopic rod under the action of a balancing weight, so that the discharging purpose is achieved, through the synergistic effect of rotation and vibration, the discharging efficiency is improved, and the working efficiency is improved. The liquid in the detection tube can be more effectively discharged, the liquid can be gathered towards the bottom of the detection tube by rotation under the action of centrifugal force, the surface tension of the liquid and the possible local attachment state can be further broken by vibration, the liquid can flow out more smoothly, and the discharging efficiency and thoroughness are improved.

The invention belongs to the field of automatic assembly, and provides automatic assembly equipment for micromotors, which comprises a spiral conveying mechanism provided with a feeding area and an orienting area, the feeding area is used for sequentially conveying a plurality of shells into the orienting area in a horizontal posture, and the orienting area is used for orienting the shells; the opening end of the shell is adjusted to the back side of the moving direction of the shell through the orientation area; and the position adjusting mechanism is arranged on one side of the positioning area, and the position adjusting mechanism is used for adjusting the opening end of the shell to be vertically upward. Compared with the prior art, the automatic assembly line has the advantages that seamless connection from raw material supply to finished product output is achieved by integrating a plurality of automatic mechanisms, manual intervention is not needed in the whole process, the product assembly takt time is shortened, the overall assembly efficiency is improved, the production cost and the manual labor intensity can be effectively reduced, and the production efficiency is improved. Each part can be accurately installed in place, and the overall quality and reliability of the product are improved.

The utility model discloses a wear-resistant micromotor gear plate, which comprises a mounting plate, two sides of the top of the mounting plate are fixedly connected with clamping plates, one side of the mounting plate is fixedly connected with a connecting convex plate, the surface of the mounting plate is provided with a protective layer, the top of the mounting plate is provided with a main shaft hole in a penetrating manner, and the main shaft hole is fixedly connected with the clamping plates. A ventilation hole facilitating heat dissipation of the motor is formed in the top of the mounting plate and located between the main shaft hole and the clamping plate in a penetrating mode, and insertion holes are formed in the top of the mounting plate and located on the periphery of the main shaft hole in a penetrating mode. According to the wear-resistant micromotor gear plate, through the arrangement of the protective layer, the wear-resistant layer can greatly improve the wear resistance of the gear plate, reduce the wear of the gear plate and prolong the service life of the gear plate, and the insulating layer can enable the mounting plate to have better insulativity, so that the safe use of a motor is ensured, and meanwhile, the possible electrochemical corrosion of the gear plate is effectively avoided; and the service life of the motor is further prolonged.

The invention belongs to the field of biological refining of grease, and particularly relates to a grease degumming method based on a phospholipase micromotor reactor. The invention discloses an enzymatic degumming method of edible vegetable oil, algal oil and animal fat, which aims at the pain points of low degumming efficiency, long time consumption, easy enzyme inactivation and difficult recovery of the traditional enzymatic degumming, designs core-shell mesoporous silica microspheres, adopts an emulsion method to respectively graft alkyl and alkylamine on two sides of the microspheres, constructs a Janus carrier with asymmetric chemical environment, and improves the degumming efficiency of the edible vegetable oil, the algal oil and the animal fat. And immobilizing phospholipase A1, A2, B or C through physical adsorption to prepare the phospholipase micromotor reactor. In the degumming process, a micromotor cooperates with an interface activation-enhanced mass transfer-dynamic self-cleaning mechanism, self-driven movement in an interface micro-scale range is realized by virtue of a substrate concentration gradient, the enzyme activity and stability of phospholipase are remarkably improved, and efficient degumming of grease is realized. The method is high in oil yield, green in process and suitable for industrial popularization.

The invention relates to the technical field of electronic component packaging materials, and discloses an epoxy powder composition for a micromotor, a preparation method and application, the composition comprises solid bisphenol A epoxy resin, polyfunctionality epoxy resin with functionality greater than 2, crystalline epoxy resin, an anhydride curing agent, a curing accelerator, a filler and an adhesion promoter, and other auxiliary agents such as a flexibilizer, a pigment and the like. Through the synergistic effect of specific components, the defects in the prior art are overcome, and the composition is high in curing speed and high in heat resistance; the cured coating is high in hardness, good in toughness and strong in adhesive force to a metal base material, and can effectively resist winding impact and cold and hot impact without cracking; the powder has excellent recycling performance in electrostatic fluidized bed coating, stability of coating parameters of an automatic production line can be guaranteed, and the powder utilization rate is remarkably increased; and meanwhile, the product meets the environmental protection requirements of no halogen, RoHS2.0 and the like.

The invention discloses a micromotor resonance risk analysis method and system, belongs to the technical field of micromotor manufacturing, analyzes and diagnoses the resonance risk of a micromotor by combining electromagnetic excitation simulation, modal simulation and sound physical quantity acquisition, and is used for avoiding the frequency band where the micromotor generates resonance and reducing noise. And the design of a micromotor mounting structure is guided, the equipment investment cost is low, and the application range is wide.

The invention discloses an intelligent glassware storage cabinet with recognition, classification and detection functions, and relates to the technical field of experimental facilities, the intelligent glassware storage cabinet comprises a glassware storage unit, a recognition and detection unit, an object taking and conveying unit and a control unit, and the glassware storage unit is installed in a storage cabinet body. The profiling groove of the memory sponge lining of the glass instrument storage unit is matched with instruments of the same type and multiple specifications, the pressing assembly achieves dynamic pressing through the micromotor and the pressure sensor, and the complexity of manually replacing a mold is avoided. The recognition and detection unit fuses a visual camera and a four-way ultrasonic detection module, accurate judgment of instrument types is achieved through visual recognition, an ultrasonic probe scans the interior of the instrument from the front, back, left and right faces, and hidden damage such as microcracks can be detected. The object taking conveying unit conveying belt achieves efficient linkage of a storage area and an object taking area, the object taking time of a single instrument is greatly shortened, the concentrated object taking efficiency of instruments of multiple specifications is improved, and the wrong taking rate is reduced.

The invention belongs to the technical field of linear ultrasonic motors, and particularly relates to a linear micro motor stator structure, a preparation method thereof and a micro motor. According to the technical scheme, the linear micro motor stator structure comprises an elastic substrate, and at least one side of the elastic substrate is connected with a piezoelectric film; the friction head protrudes out of the surface and is connected with the piezoelectric film or the elastic substrate; and the thickness of the piezoelectric film is less than 10 microns. According to the linear micro motor stator structure, the preparation method thereof and the micro motor, a standing wave linear motor is designed and prepared based on a piezoelectric film, low-voltage and high-torque output is achieved, meanwhile, a rotary micro motor structure is provided based on the arc-shaped micro motor stator structure, and thin compact terminal application is met.

The present invention belongs to the field of micromotor technology and discloses an integrated device for pressing carbon crystals and attaching damping strips to micromotors. The device includes a workbench equipped with a rotating mechanism, a brush holder, a carbon crystal pressing mechanism, a damping strip attaching mechanism, a detection mechanism, and a discharge mechanism. The brush holder, carbon crystal pressing mechanism, damping strip attaching mechanism, detection mechanism, and discharge mechanism are sequentially arranged around the rotating mechanism. The device can automate the installation of carbon crystals onto the brush holder and the attachment of damping strips to the brush holder, thereby improving production efficiency.

The invention discloses an intelligent control method and system for a clock micromotor, and relates to the technical field of intelligent control, and the method comprises the steps: obtaining the environment temperature, the gravity angle value and the standing time of the clock micromotor, taking the environment temperature, the gravity angle value and the standing time as orthogonal variables, constructing a multi-dimensional friction load tree, and according to the multi-dimensional friction load tree, carrying out the intelligent control of the clock micromotor. The method comprises the following steps: obtaining a reference driving pulse width, calculating a time difference value between an actual back electromotive force zero-crossing moment and a theoretical back electromotive force zero-crossing moment, outputting the time difference value as a load residual error, storing the load residual error according to a time sequence to form a historical load residual error sequence, and obtaining a trend correction factor according to the historical load residual error sequence; compensating the reference driving pulse width through the trend correction factor, generating a target driving pulse width, outputting a driving waveform to a coil of a clock micromotor according to the target driving pulse width, controlling the operation of a rotor, updating a historical load residual error sequence according to a real-time load residual error, and improving the travel time precision, battery endurance and mechanical life of the clock.

The utility model relates to the technical field of detection devices, specifically a stamping part notch detection device for micro-motor stamping parts processing, including a base plate and a pair of support plates, a pair of load-bearing rods are fixedly connected to the top of the base plate, and a mounting plate is fixedly connected to the end of the load-bearing rod away from the base plate, and a plurality of laser emitters are arranged at the bottom of the mounting plate. Through the coordinated use of the laser emitter, the first signal receiving module, the second signal receiving module and the third signal receiving module, if only the first signal receiving module receives the laser signal, it means that the laser corresponding to the second signal receiving module is blocked, and the width of the notch of the workpiece is too short. If both the first signal receiving module and the second signal receiving module receive the laser signal, it means that the notch of the workpiece meets the standard. If both the first signal receiving module, the second signal receiving module and the third signal receiving module receive the signal, it means that the width of the notch of the workpiece is too long.

The utility model relates to the technical field of beauty appliances, in particular to an orbiculus oculi scar shortening device which comprises a columnar shell, a piston column sleeve horizontally extending out is arranged at the top of the columnar shell, a piston column is slidably installed in the piston column sleeve, and the end, extending out of the outside, of the piston column is connected with a massage head. The end, away from the massage head, of the piston column is hinged to a connecting rod through a far-end hinge column, the end, away from the piston column, of the connecting rod is hinged to a sliding block through a near-end hinge column, and the sliding block is slidably installed on an eccentric wheel and controlled by a micro motor fixedly installed on the eccentric wheel. According to the utility model, through the accurate vibration of the massage head, the orbiculus oculi muscle is relaxed, the blood circulation of the eye muscle is promoted, and the scar and crow's feet can be relieved.

This invention relates to the field of non-contact biosignal processing technology, providing a method, device, electronic device, and storage medium for determining psychological state assessment parameters. The method includes: inputting millimeter-wave radar signals into a psychological state assessment model to obtain psychological state assessment parameters; the psychological state assessment model includes a physiological feature extraction module, a micromotor feature extraction module, a multimodal feature fusion module, and a psychological state inference module. This invention reconstructs electrocardiogram waveforms through the physiological feature extraction module to obtain detailed physiological features, extracts micromotor features through the micromotor feature extraction module, and integrates features reflecting internal physiological changes and external behavioral manifestations through the multimodal feature fusion module. This forms a more comprehensive and multidimensional fused feature set for comprehensive analysis by the psychological state inference module, greatly improving the comprehensiveness and accuracy of psychological state assessment in unconstrained daily environments.

The utility model discloses an automatic three-blade feeding mechanism, which relates to the technical field of micromotor three-blade feeding and specifically comprises a mounting seat and a stand column, a platform frame is mounted at the top end of the stand column, and a front positioning pin inserting mechanism, a progressive pin inserting mechanism and a material taking pin inserting mechanism are respectively mounted at the bottom of the platform frame; the material taking and pin inserting mechanism is located in the middle of the platform frame, and the progressive pin inserting mechanism is located between the front positioning pin inserting mechanism and the material taking and pin inserting mechanism. The automatic feeding device is suitable for feeding three blades of a micro motor and feeding brush sheet roll materials of the micro motor, orderly progressive feeding of the three-blade roll materials can be achieved through alternate cooperation of the front positioning pin inserting mechanism and the progressive pin inserting mechanism, feeding stability and feeding speed are guaranteed, the automatic material taking operation of the three blades is achieved through cooperation of the material taking pin inserting mechanism, and production efficiency is improved. And each three-blade is independently taken down from the strip coil one by one, so that adhesion among materials can be avoided, manual intervention for troubleshooting is reduced, and the automation degree of equipment is improved.

The disclosure presents a shaftless, brushless motor for rotating any optical or sensing element (e.g., a lens or mirror) at a distal end of a waveguide that also delivers electromagnetic radiation (e.g., light). Herein, the waveguide itself functions as the axle on which rotating components rotate, thereby avoiding blind spots and overcoming limitations in existing “micromotors”. The shaftless, distally driven motor significantly reduces motor size, while extremely small inertial loads and bearing sizes allow for high pitch cylindrical scanning with longitudinal velocity uniformity.

The invention discloses a fully automatic intelligent detection device for withstand voltage between segments of a micro motor commutator; it belongs to the technical field of withstand voltage detection devices between segments of a commutator; its technical points include a frame, an oscillating material automatic input module and an automatic withstand voltage test module between segments are arranged on the frame, a material conveying module is arranged on the frame between the discharge end of the oscillating material automatic input module and the feed end of the automatic withstand voltage test module between segments, the material conveying module comprises a first transverse conveying mechanism and a second transverse conveying mechanism arranged on the frame, the first transverse conveying mechanism and the second transverse conveying mechanism are arranged at intervals up and down, and the conveying directions are perpendicular to each other; the invention aims to provide a fully automatic intelligent detection device for withstand voltage between segments of a micro motor commutator, which has a compact structure, a high degree of automation and a good use effect; it is used for withstand voltage detection between segments of a micro motor commutator.

The utility model discloses an electric power-assisted crutch which comprises a crutch body, a telescopic frame is installed on the top of the crutch body, adjusting rods are movably connected to the left end and the right end of the top of the telescopic frame, and armpit supports are installed on the tops of the adjusting rods. A micromotor is installed at the top of an inner cavity of the crutch body, an output shaft of the micromotor is connected with a lead screw, the surface of the lead screw is sleeved with a main supporting rod in a threaded mode, and a hollow cavity used in cooperation with the lead screw and the main supporting rod is formed in the crutch body. The multifunctional crutch has the advantage of being adjustable in length, and the problems that in the using process of an existing crutch, the using length of the crutch is inconvenient to adjust, a user of the crutch is affected to stand up and sit down, the using flexibility of the crutch is reduced, and the comfort degree and walking stability of the user are affected are solved.

The utility model belongs to the technical field of micromotors, and particularly relates to a motor casing not easy to fall off, which comprises a casing main body, the bottom of the casing main body is fixedly connected with a trapezoidal supporting block, the bottom of the trapezoidal supporting block is fixedly connected with a wiring terminal, and the wiring terminal is fixedly connected with a connecting rod. Copper sheets are fixedly connected to the front side and the rear side of the wiring terminal, first U-shaped plates are arranged on the front side and the rear side of the trapezoidal supporting block in an attached mode, and first rubber blocks are bonded to the inner walls of the first U-shaped plates. According to the motor shell not easy to fall off, through cooperation of a trapezoidal supporting block, a first U-shaped plate, a first rubber block, a strip-shaped hole, a cylinder, a strip-shaped groove, a limiting support and a spring, a user can fix the first rubber block to a wiring terminal, the first rubber block is made to press a welding spot on a copper sheet, and at the moment, the first rubber block is fixed to the wiring terminal; and the lead welded on the copper sheet is not easy to loosen or fall off through the pressing force, so that the copper sheet and the lead are fixed more firmly.

The utility model relates to an automobile actuator gear driving mechanism which comprises a micromotor, a worm, a worm gear, a first transmission gear, a second transmission gear and an output gear, the worm is fixedly arranged on an output shaft of the micromotor, the worm gear is in meshed transmission with the worm, the first transmission gear is in meshed transmission with the worm gear, and the second transmission gear is in meshed transmission with the output gear. The second transmission gear is in meshing transmission with the first transmission gear, and the output gear is in meshing transmission with the second transmission gear; the output gear comprises a plastic central rotating shaft and a powder metallurgy gear ring arranged on the plastic central rotating shaft; the actuator can integrate different circuit board assemblies (the potentiometer circuit board assembly, the Hall switch circuit board assembly and the 3D Hall circuit board assembly), so that switching of angle control modes of the actuator is achieved, and the actuator has the advantages of being small in size, high in universality, low in development cost, short in development period and the like. The gear driving mechanism is suitable for a large-torque (more than 5N. M) automobile actuator.

The invention discloses a needleless injection device for tumor drug injection and an injection method of the needleless injection device. The needleless injection device comprises an injection mechanism and an atomization mechanism arranged below the injection mechanism. The injection mechanism comprises an outer shell, a pushing assembly arranged on the inner side of the outer shell and a plurality of power sources arranged at the bottom of the outer shell. The power source is mainly used for providing power for the device. The pushing assembly is mainly used for pushing high-speed injection of medicine. The atomization mechanism comprises a medicine kettle, an atomization piece fixedly connected to the interior of the medicine kettle and a negative pressure piece arranged on one side of the atomization piece. The medicine pot is in threaded connection with the bottom of the outer shell, the negative-pressure part is arranged on the atomization part, and the bottom of the negative-pressure part is fixedly connected with a micromotor; therefore, the safety, the convenience and the comfort degree of medicine delivery are improved.

A dental treatment apparatus according to the present invention includes a drive unit that includes a micromotor, a motor driver, and the like, a controller, and a root canal length measurement circuit. The controller controls the cutting tool to be held at a head forward driven in a direction of cutting of an object to be cut. The controller also controls the cutting tool to be reverse driven in a direction reverse to forward rotation drive when the cutting tool is forward driven and the root canal length measurement circuit detects a tip end of the cutting tool reaching a reference position. The controller further carries out a fail-safe control when the cutting tool is reverse driven and the root canal length measurement circuit detects movement of the tip end of the cutting tool toward a root apex position.

The utility model discloses a micro-motor rotor skewed slot structure, comprising a rotor iron core which is formed by a plurality of iron core sheets which rotate and are laminated along the axial direction of the rotor iron core. The iron core sheet comprises a punching sheet yoke part and a punching sheet tooth part, the punching sheet tooth part is of a T-shaped structure, and the side wall, far away from the punching sheet yoke part, of the punching sheet tooth part is provided with a transition cambered surface; a winding chute is formed between two adjacent rows of punching sheet tooth parts in the rotor iron core; and an included angle is formed between the central axis of the winding chute and the central axis of the shaft hole. Compared with a straight groove structure, the winding skewed slot can reduce the static friction force of the rotor of the micromotor during operation, reduce the loss, and further improve the operation efficiency and performance of the micromotor; when a magnetic field passes through the transition cambered surface on the side wall of the punching sheet tooth part, the transition cambered surface enables a magnetic field conduction path to become smoother, so that the resistance of magnetic field conduction is reduced, and the operation efficiency of the micromotor is effectively improved.

The invention provides a preparation method of a charging pile electronic lock motor, which comprises the following steps: S1, preparing a micromotor and a reduction gearbox, and arranging an absolute value encoder at the output end of the micromotor; s2, providing a high-definition pinhole camera device, and preparing a face recognition system and / or a fingerprint recognition system; s3, a main control circuit board communicating with the cloud server is prepared, data transmitted by the face recognition system and / or the fingerprint recognition system is sent to the user intelligent mobile terminal, the user intelligent mobile terminal can carry out charging confirmation according to the received sent data and a power supply access signal transmitted by the vehicle-mounted computer, a confirmation signal is formed, and charging is carried out according to the confirmation signal. And the cloud server receives the confirmation signal sent by the household intelligent mobile terminal and sends a formal charging start signal to the charging pile. The intelligent charging gun comprises the intelligent motor prepared by the method, and the stability and the reliability of charging connection and the effectiveness and the accuracy of billing are improved.

The utility model discloses a manual electronic variable speed controller of an inner variable speed hub and a bicycle, which comprise a micro-motor running device, a key indicating instrument device and a power supply device, and the micro-motor running device is fixed at one end of the axis of the inner variable speed hub; the micro-motor running device comprises a shell main body, a micro-motor lower cover, a movable conversion lever and a micro-motor, the key indicating instrument device is fixed on a handlebar of the bicycle, the key indicating instrument device comprises a key upper cover, a key lower cover and a circuit board, the key indicating instrument device is connected with the micro-motor, and the circuit board is connected with the micro-motor. And the power supply device is fixed on a frame of the bicycle and is electrically connected with the micromotor running device and the key indicating instrument device respectively. The manual electronic variable-speed controller of the inner variable-speed hub is advanced in design, compact in structure and convenient to use, so that a rider can realize speed change and gear shifting only by lightly pressing a key, the fatigue of the rider can be relieved, and the riding comfort is improved.