89 results about "Moving magnet" patented technology

The invention discloses a high-precision linear vibration feedback motor system, and relates to the technical field of precise electromagnetic driving, and the system comprises a core driving module which is a moving magnet type linear motor of a Halbach array magnetic circuit structure, and is integrated with a multi-physics field sensing unit; the dynamic parameter tracking module is used for acquiring a reed rigidity coefficient, a damping coefficient and a magnetic constant in real time when the motor runs, and establishing a dynamic displacement model based on a recursive least square method; a double-closed-loop control framework is adopted, an inner loop adopts field-oriented control, and an outer loop is based on model prediction control; the aging prediction unit activates a temperature rise compensation algorithm when the accumulated number of vibration times is greater than a set threshold value; the self-adaptive calibration engine is used for injecting a sweep frequency excitation signal when the system is started, and automatically compensating individual difference parameters according to the harmonic peak offset; and the digital twin mapping unit is used for establishing a real-time mapping relationship between the physical parameters of the motor and the virtual model, and dynamically correcting the model parameters by comparing the actual displacement with the model displacement.

The invention belongs to the technical field of medical instruments, and discloses a magnetic coupling sealing intervention pump which comprises a motor, a first supporting seat, a driving magnetic ring, a driven magnetic ring, an impeller and a first connecting shaft, and the first supporting seat is fixed to the outer wall of the motor in a sealed mode to form a first assembling cavity; the output shaft and the driving magnetic ring are coaxially and fixedly arranged and are both arranged in the first assembling cavity in a sealed mode, and the output shaft rotates to drive the driving magnetic ring to rotate synchronously. The bottom of the first connecting shaft is fixed to the first supporting base, the impeller is rotationally connected with the first connecting shaft, and the driven magnetic ring is fixed to the lower end of the impeller and drives the impeller to rotate synchronously through magnetic torque generated by coupling of the driven magnetic ring and the driving magnetic ring. Rotation of the output shaft of the motor is transmitted to the impeller through magnetic coupling transmission between the driving magnetic ring and the driven magnetic ring, so that direct mechanical connection and sealing structures are not needed between the output shaft of the motor and the impeller, the leakage problem possibly caused by mechanical sealing in a traditional pump is avoided, and the sealing performance and reliability of the intervention pump are improved.

The design method of the non-linear term offset moving-magnet vibrator meets the following conditions: (1) a moving-magnet vibrator body comprises an outer cylinder, a vibration transmission sheet, a stator assembly and a rotor assembly; and (2) the mover assembly is subjected to electromagnetic acting force of pushing force and pulling force in pairs at the same time and presents a push-pull type structural characteristic, so that linear terms in the acting force borne by the mover assembly are overlapped and become larger, and non-linear terms in the acting force borne by the mover assembly are partially or completely counteracted and are reduced, so that the linear terms in the acting force borne by the mover assembly are reduced, and the linear terms in the acting force borne by the mover assembly are reduced. And obtaining the moving magnet type vibrator with the counteracted nonlinear term.

The application relates to a double-side coupling axial nutational magnetic speed reducer and a working method thereof. The speed reducer comprises a box, an input shaft is arranged at the left end of the box, a rotating disc is arranged at the right side in the box, a nutational disc is arranged in the box and rotates with the input shaft, first and second nutational magnetic gears are arranged at the left and right end faces of the nutational disc respectively, a fixed magnetic gear is arranged at the left end of the box and is magnetically coupled with the first nutational magnetic gear, and a movable magnetic gear is arranged at the left end face of the rotating disc and is magnetically coupled with the second nutational magnetic gear. The double-side coupling axial nutational magnetic speed reducer can realize few-pole difference, has simple structure, large transmission ratio and high transmission efficiency, the axial forces generated by the axial magnetic gears on the two sides can be effectively offset, the service life of bearings is prolonged, the axial force is small, and transmission is stable.

The embodiment of the utility model provides a moving magnet type mouse wheel mechanism, which comprises a bearing unit, a wheel and a magnetic conductive piece, the bearing unit is provided with a first mounting piece and at least one second mounting piece, the wheel is arranged on the first mounting piece and can rotate, a plurality of magnetic poles are radially and sequentially distributed on the circumference of the wheel, and the polarities of the adjacent magnetic poles are opposite to each other; the magnetic conductive part is arranged on the second installation part, the magnetic conductive part faces the rolling wheel and is separated from the rolling wheel by a certain distance, the magnetic conductive part faces the magnetic poles in a non-contact mode, the size of a body of the magnetic conductive part is smaller than the size of two adjacent magnetic poles, and when the rolling wheel rotates, intermittent strong and weak magnetic restoring force can be generated between the magnetic poles and the magnetic conductive part. The joint of two adjacent magnetic poles of the roller is located at the extending position of the center line of the magnetic conductive piece.

The invention provides an intraoperative dynamic positioning system and method based on a magnetic sensor array and a composite magnetic field, and the system comprises a composite excitation handle which is internally and non-coaxially integrated with a static magnetic source and a dynamic magnetic source, and generates a non-axisymmetric static and dynamic composite magnetic field; the self-adaptive sensing array is provided with a plurality of magnetic sensing nodes and is used for synchronously acquiring magnetic field signals; and the navigation processing terminal is used for processing the signal and resolving the pose. According to the method, static magnetic and dynamic magnetic components are obtained through synchronous acquisition and frequency domain decoupling; the method comprises the following steps: fitting the position and direction of a handle by utilizing a static magnetic component, and solving a rotation angle around a shaft by taking the position and direction as initial values and combining a dynamic magnetic component to realize full six-degree-of-freedom positioning; and finally, obtaining the navigation pose of the instrument tip through filtering mapping. According to the invention, full-attitude, high-precision and strong-interference-resistance intraoperative dynamic positioning is realized, and the problems of precision degradation and visual lag of traditional electromagnetic positioning in a metal environment are solved.

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

The invention relates to the technical field of planar motors, in particular to a stator unit for a moving magnetic planar magnetic suspension motor and the motor. The stator unit comprises a plurality of basic units, the first coil unit, the second coil unit and the position sensor unit in each basic unit form an n * n square matrix, and n is an integer greater than 1; the first coil units and the position sensor units on any odd-numbered rows or odd-numbered columns of the n * n square matrix are alternately arranged; the position sensor units and the second coil units are alternately arranged on any even-numbered rows or even-numbered columns of the n * n square matrix, and the coil direction of the first coil units is perpendicular to the coil direction of the second coil units. The motor comprises the stator unit, and the stator unit and the motor break through the constraint of a traditional cable, replace a laser interferometer scheme of a traditional moving-magnet planar motor, and simultaneously support the pose measurement of a plurality of rotors in a single oversized working plane.

The invention discloses an intelligent bracelet structure convenient to adjust and wear and a use method thereof.The intelligent bracelet structure comprises a dial plate body, a rubber sleeve is arranged on the outer side of the dial plate body, a through hole is formed in the side wall of the rubber sleeve, a second extension plate is arranged on the periphery of the top end of the rubber sleeve, and four insertion grooves are symmetrically formed in the two sides of the rubber sleeve; and four limiting holes are symmetrically formed in the other two side walls of the rubber sleeve. The beneficial effects are that through the design of the rubber sleeve, the extension plate II, the slot, the limiting hole and the limiting column, the periphery of the dial plate body can be surrounded, the rubber sleeve can be designed into various colors, and the attractiveness of the dial plate body is ensured under the condition that the periphery of the dial plate body is prevented from being collided and worn; and through cooperation with surrounding of a stainless steel woven belt on a second mounting column, a forward moving magnet on a guide plate can be attracted to the stainless steel woven belt, by adjusting the attraction position of a powerful magnet, the device can rapidly adjust the size of the bracelet, and rapid wearing or taking off is facilitated.

The invention relates to a moving magnet type motor. The present invention provides a moving magnet type motor comprising: a fixed voice coil coupled to a frame; a moving magnet assembly movably coupled to the frame and operable to move relative to the fixed coil, the moving magnet assembly including a magnet and a flux concentrating member, the magnet and the flux concentrating member defining a gap within which the fixed coil is positioned; and an actuation surface coupled to the moving magnet assembly, and wherein movement of the moving magnet assembly drives movement of the actuation surface along a translating axis.

A magnetic levitation centrifugal pump, including a volute, stator magnetic ring and a rotor; the volute has a levitation cavity, a medium inlet and a medium outlet, the rotor is located inside the levitation cavity, the stator magnetic ring are fixed to the volute, and the rotor includes a rotor body and dynamic magnetic ring located on the rotor body; the dynamic magnetic ring and the stator magnetic ring are coaxial with each other and are nested, to limit the radial positions of the rotor body and the volute; magnet steel assemblies are further fixed at the rotor body, each magnet steel assembly includes N first magnet steels arranged along the circumferential direction, and magnetic poles of all the first magnet steels are arranged in a staggered manner; two ends of the volute are also encapsulated with driving coil assemblies.

The utility model relates to the technical field of faucets, in particular to a bathtub faucet assembly which comprises a faucet body, a pipe body, a column block, a movable rod, a floating block, a movable magnet ring and a fixed magnet ring, the top end of the pipe body is communicated with the interior of the faucet body, a through hole is formed in the side face of the bottom of the pipe body, the column block is located in the pipe body, and a clamping block is formed at the bottom of the column block. A limiting cavity capable of being matched with the column block is formed in the faucet body, the movable rods are located on the left side and the right side in the pipe body, the middles of the movable rods are hinged to the pipe body and can rotate, clamping blocks are formed at the top ends of the movable rods and can clamp the clamping blocks, and the floating block is located in the pipe body and can move. The fixed magnet ring is fixedly installed in the pipe body and repels the movable magnet ring, the floating block capable of changing along with the water level of the bathtub is arranged in the pipe body, the column block and the limiting cavity are matched based on feedback of the floating block to the water level so that water flow can be cut off, and the problem that after the bathtub is full of water, the faucet still continuously discharges water, and consequently water resources are wasted is solved.

The application relates to the technical field of generator testing, in particular to a dynamic-magnetic linear generator mutual-load pneumatic coupling test method, which obtains performance parameters of a to-be-tested motor through a pneumatic coupling mode, omits an intermediate transmission mechanism, and can jointly adjust a test frequency through inflation pressure and a variable-frequency driver, can adjust the oscillation stroke ratio of two motor movers through the area ratio of coupling pistons, can truly simulate the working condition of a linear motor in a free-piston Stirling generator, and can obtain more sufficient test data; in addition, the two linear motors are arranged to form a symmetrical structure test platform, and through transformation of a driving motor and the to-be-tested motor, the test data can be compared, so that the consistency of a prototype development and production can be verified.

This utility model belongs to the field of linear motor assembly technology, specifically relating to an auxiliary device for installing the stator of a moving magnet linear motor. It includes a linear motor, a support mechanism, and an adjustment mechanism. The linear motor includes a motor base, a motor top cover, a lower coil stator, a guide rail, a magnet mover, and an upper coil stator. The motor top cover is connected to the motor base, and the upper coil stator is installed at the bottom of the motor top cover. The lower coil stator is installed inside the motor base, and the guide rail is installed on top of the motor base. The magnet mover is positioned between the upper and lower coil stators and cooperates with the guide rail. An adjustment mechanism is installed on the support mechanism and connected to the motor top cover. The adjustment mechanism moves in conjunction with the support mechanism to adjust the distance between the upper coil stator and the magnet mover. The adjustment mechanism is used to adjust the position of the upper coil stator in the horizontal plane to achieve the installation of the linear motor. This utility model can prevent magnet collision and damage during installation, ensuring installation accuracy.

The utility model provides a quick disc frock of loading of card belongs to frock clamp technical field, the utility model provides a quick disc frock of loading of card, including disc body, the upper end surface of disc body is adsorption surface, and the adsorption surface is used to place work piece, and the inside of disc body is equipped with magnetic attraction device and rotating roller, and the magnetic attraction device includes fixed magnet group and moving magnet group, and fixed magnet group is fixed in disc body, and moving magnet group is equipped on the moving plate in disc body, and one side of moving plate is equipped with rack, and rotating roller is equipped with tooth, and tooth is engaged with rack, and rotating roller is provided with the jack, is used for inserting the plug post to rotate rotating roller, when needing to adsorb work piece, first, work piece is placed to adsorption surface, after through inserting the plug post into the jack, rotates the plug post, can rotate rotating roller, can control moving plate to shift, adsorb work piece to adsorption surface, after processing, reverse plug post, moving plate resets, no longer adsorbs work piece.

The three-degree-of-freedom micro-vibration isolator with stiffness and damping adaptive cooperative regulation belongs to the technical field of precision vibration isolation, and can realize three-degree-of-freedom near full-band vibration isolation performance under variable load. It comprises an upper plate, a base plate and three sets of low-frequency vibration isolation dampers connected between the upper plate and the base plate; the negative stiffness damping regulator in the low-frequency vibration isolation damper utilizes a multi-layer axial array of equal-section magnetic ring arrays with vertical magnetization between adjacent layers to construct a single-side high magnetic density excitation magnetic field, and coaxially nests the vertical magnetization permanent magnet ring array and the moving magnet ring array to generate high negative stiffness characteristics, and coaxially nests the coil to generate high damping characteristics; by real-time sensing the changes of the vibration isolation load mass or the excitation frequency, the size of the current in the energized coil is adjusted to generate a precisely controllable excitation magnetic flux, match the negative stiffness and damping requirements of near full-band vibration isolation, and achieve multi-directional, near full-band and high-performance vibration isolation effect.

The utility model relates to a rigidity-adjustable composite air spring, which belongs to the technical field of air springs, and comprises a sealing ring, a sealing bearing, an anti-collision rubber pad, an upper electrified coil, a support piston rod, a cylinder barrel, an annular permanent magnet, a locking nut, a lower electrified coil and a membrane type air spring, and the annular permanent magnet is mounted at the support piston rod through the locking nut. According to the air spring, the characteristic that the rigidity of the electromagnetic spring can be changed to be positive and negative is utilized, so that the total rigidity of the air spring which is connected in parallel is reduced to be nearly zero under low frequency and small displacement, the effect of filtering low frequency vibration is achieved, the total rigidity is further improved under large displacement, the effect of improving the bearing capacity is achieved, and the service life of the air spring is prolonged. And compared with an existing electromagnetic composite air spring, the movable magnet does not penetrate through the interior of the static magnet, it is guaranteed that the size of the movable magnet can be as large as possible, and therefore the rigidity of the electromagnetic spring has a larger adjusting range.

The application relates to a mechanism for outputting energy generated by magnetic interaction, which comprises a shell, a fixed magnet fixed in the shell, a moving assembly arranged in the shell, a magnetic pole direction adjusting assembly installed on the moving assembly, and a moving magnet installed on the magnetic pole direction adjusting assembly; the magnetic pole direction adjusting assembly is used for adjusting the directions of two poles of the moving magnet during movement of the moving magnet; the moving magnet cooperates with the fixed magnet and is used for driving the moving assembly to reciprocate along the length direction of the two poles of the fixed magnet on the side of the fixed magnet which is not in the pole direction during the process of repelling between the same poles and attracting between different poles. The mechanism for outputting energy generated by magnetic interaction can reduce energy loss of magnetic force doing negative work by timely adjusting the pole direction of the moving magnet during interaction between the moving magnet and the fixed magnet, so that the magnetic interaction can fully accumulate energy and then the energy can be output.

The application discloses a flexible membrane moving-magnetic driving type blood pump, which comprises a pump shell, a moving-magnetic driving device and a wave transmission assembly arranged in the pump shell, wherein the moving-magnetic driving device comprises a stator assembly and a rotor assembly; the wave transmission assembly comprises a flow channel component forming a wave transmission flow channel, and a flexible membrane arranged in the wave transmission flow channel is connected with the rotor assembly through a rigid diaphragm, so that the rotor assembly drives the flexible membrane to vibrate in the wave transmission flow channel under the electromagnetic driving effect of the stator assembly, and the flexible membrane generates a wave motion, thereby making the blood flowing into the pump shell and the flow channel component to have a wave pumping effect with physiological characteristics. The application realizes the wave transmission of the blood, makes the blood flow have the pulsation physiological characteristics, is stable and reliable in operation, is not prone to faults, is low in cost and is suitable for promotion.

According to the Hall position measurement optimization method of the moving-magnet type magnetic suspension planar motor, the magnetic field characteristics of a Halbach permanent magnet array are combined, an orthogonal Hall array is adopted to obtain a magnetic induction intensity signal, and a cascade delay elimination algorithm is introduced to suppress harmonic distortion, so that the displacement calculation precision is improved. A time delay signal elimination method is a method for eliminating signal interference caused by time delay, a harmonic signal is effectively eliminated by carrying out time delay processing on a voltage signal and combining the voltage signal with an original signal, and meanwhile the integrity of a fundamental component can be reserved. The signal is delayed by a quarter of a period by using the voltage quantity under the alpha and beta coordinate systems, and is combined with the original signal. In the process, a harmonic component in the signal can be eliminated, and a fundamental component is ensured not to be influenced by delay attenuation, so that a phase error caused by harmonic waves can be effectively avoided. Experimental results show that harmonic waves can be effectively filtered out.

The utility model relates to commodity display stand technical field, concretely is a screen product turntable, include: base, base includes mounting panel, and the transmission shaft is rotationally installed in the mounting panel centre, drive component, drive component includes power source, and power source passes through the lifting structure and is installed at the mounting panel bottom surface, turntable, and the transmission shaft top of turntable is clamped, is used for bearing commodity. The utility model, utilize magnetic coupler and connect power source output shaft and transmission shaft, realize zero contact transmission, reduce working noise, no contact transmission, can be convenient for operator to stop turntable rotation display details at any time, will not influence power source work, will not heat, through change driven magnetic ring and insert the depth of initiative magnetic ring, change transmission torque, can adapt to different weight commodity, transmission structure is simple and need not maintain.

An energy conversion system including moving magnets, having a first tank, a combustion chamber, a gas turbine and a compressor. The energy conversion system also has a second tank and an electromotive force generator, the latter being connected at a first end to the second tank and at a second end to the first tank, and comprising a first solenoid, a second solenoid, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, an eighth valve, a first magnet and a second magnet. The first magnet is able to slide between two ends of the first solenoid, while the second magnet is able to slide between two ends of the second solenoid.

The application belongs to the technical field of new energy and specifically relates to a Rubik's cube array type piezoelectric energy harvester. The device comprises a support structure, a flow-induced vibration module, a piezoelectric module and a magnetic vibration module. The support structure comprises an m-maze frame and a top seat, and a plurality of vibration bluff body assemblies are arranged in the m-maze frame and in multiple directions. A piezoelectric sheet is arranged on a hollow cantilever beam, and the hollow cantilever beam is connected to the top seat and the vibration bluff body assembly. The magnetic vibration module comprises a moving magnet and a fixed magnet, and the two form a magnetic coupling effect, so that the vibration bluff body assembly superimposes magnetic vibration on the basis of flow-induced vibration, and drives the piezoelectric sheet to deform and output electric energy. The application can reduce the flow rate at which vibration starts, broaden the working frequency band and improve the energy harvesting efficiency in a multi-directional fluid environment.

A moving magnet motor system including a cylinder having a cylindrical axis and a rider disposed within the cylinder, wherein the rider moves longitudinally along the cylindrical axis within the cylinder. The moving magnet motor system further including a coil configured to generate an electromagnetic field, a magnet ring support structure affixed to the rider and a magnetic ring affixed to the magnet ring support structure and comprising a plurality of magnets configured to interact with the magnetic field generated by the coil to impart linear force to the rider. The moving magnet motor system further includes one or more ferromagnetic rods extending parallel to the cylindrical axis wherein the ferromagnetic rod(s) are configured to minimize or offset a bearing side load.

The application discloses a magnetic suspension friction-electromagnetic hybrid type in-vivo implant power generation device, and belongs to the technical field of biomedical energy sources. The device is composed of a biocompatible shell, a magnetic suspension vibration subsystem, a coil and a friction nano power generation unit. The magnetic suspension vibration subsystem is composed of two same first magnets fixed on the upper and lower parts of the shell and a suspension vibrator in which a second magnet is embedded, and the vibrator is suspended by using magnetic repulsion. The device can passively collect mechanical energy generated by human body movement, and can be actively driven by an external variable magnetic field, so that the suspension vibrator moves, thereby exciting the friction power generation unit (a friction layer and an electrode layer) and the electromagnetic power generation unit (an induction coil and a moving magnet) to generate electric energy. The application combines the advantages of friction power generation and electromagnetic power generation, has the characteristics of high energy collection efficiency, good reliability, long service life and active energy supply, and effectively solves the problem of continuous power supply of implantable devices.

The utility model discloses a kind of direct-drive gravity energy storage devices of moving magnet, belong to gravity energy storage technical field, comprising: direct-drive conveying system and energy storage unit;Direct-drive conveying system includes alternating current network, energy storage converter, direct-drive motor unit and several secondary mover carriers, energy storage converter one end is electrically connected with alternating current network, and the other end is electrically connected with direct-drive motor unit through direct current bus;The device is through direct-drive conveying system and energy storage unit and carries out efficient bidirectional conversion to electric energy and potential energy, realizes multiple movers simultaneous movement, improves the space efficiency ratio of gravity energy storage;And compared with traditional energy storage mode, remove the superfluous movement intermediate mechanism, reduce unnecessary parts and connection, effectively save installation space, reduce maintenance difficulty and cost, so that it can be applied in more extensive site conditions.

The utility model discloses a direct current contactor, including the casing, the casing top is fixed with the ceramic cover, and the ceramic cover top is fixed with the outgoing end, the casing is vertically passed to have the push rod, and the push rod top is fixed with the moving piece, and the compression spring is installed between the moving piece and the casing top surface, the push rod bottom is connected with the moving magnet, and the coil frame that is wound with the electromagnetic coil is installed to the moving magnet outer periphery, and the static magnet is installed above the moving magnet. The utility model keeps the closing, need not to give the coil power supply continuously, saves the energy, and the direct current contactor is not easy to make the temperature heat failure of causing, when the opening, electromagnetic repulsion and spring reaction force open together, in the overstroke, the opening force is bigger, and the contactor contact obtains higher rigid separation speed, and the opening speed is faster.

The invention provides a magnetically-driven active movement capsule robot which comprises a capsule shell, a center crankshaft, a left side connecting rod, a right side connecting rod, a left side rake, a right side rake, a fixed magnet and a movable magnet, the fixed magnet and the movable magnet are radial magnetizing magnets, the fixed magnet is fixed in the capsule shell, and the movable magnet is fixed in the capsule shell. The movable magnet is installed in the capsule shell, the movable magnet can rotate and axially move, the movable magnet is fixedly connected with the center crankshaft, and the center crankshaft is installed in the capsule shell. The magnetically-driven capsule robot capable of actively moving has the beneficial effects that the magnetically-driven capsule robot capable of actively moving has an active shifting-in movement function, and a narrow part can be actively shifted aside when an intestinal tract deforms, so that a cavity channel with a more sufficient space is formed.

The invention belongs to the technical field of lead bonding, and particularly relates to an ultrasonic lead bonding mechanism and a bonding device.The bonding mechanism comprises a base, a fixing base, a movable magnetor, a swing arm, a transducer and a ceramic nozzle, the fixing base is installed on the base, the swing arm is rotationally connected to the fixing base, the transducer is installed on the swing arm, and the ceramic nozzle is connected to the movable magnetor. A ceramic nozzle is mounted on the transducer; the moving magnet motor comprises a moving magnet assembly and two stator assemblies, the moving magnet assembly is arranged between the two stator assemblies, the moving magnet assembly is connected with the swing arm, and the two stator assemblies are connected with the base; the swing arm is driven to rotate through the moving magnetic motor, so that the transducer and the ceramic nozzle are linked to swing, and the ceramic nozzle is used for welding a workpiece; when the moving magnetic motor drives the ceramic nozzle to move, the moving magnetic assembly of the moving part is free of a cable, interference of resistance of the cable on movement of the ceramic nozzle can be avoided, the stator assembly can reduce heat productivity, and heat dissipation is facilitated.

A photovoltaic frame staggered small parallel segment notch width dimension auxiliary measurement tool is characterized in that a notch is a notch with parallel segments I and II oppositely formed on the inner side of an opening, and the notch comprises a transverse plate and a vertical plate which are perpendicular to each other, and a bottom block arranged at a right angle position formed by the intersection of the transverse plate and the vertical plate; the magnet I is embedded in a first concave hollow part of the transverse plate; the moving plate is movably arranged on the transverse plate; the moving magnet can be adsorbed on the moving plate; the middle moving block is movably arranged on the moving plate; the upper surface of the bottom block is perpendicular to the vertical plate, the side surface of the bottom block is perpendicular to the transverse plate, the free end of the stopper rod is used for measuring the width size of the notch, the magnet I and the magnet II can be attracted to the moving plate and the middle moving block respectively, and the moving plate is arranged to be separated from the bottom block in the mode that a hollow part is arranged between the moving plate and the middle moving block.