34 results about "Magnetic potential" patented technology

The invention discloses a method for searching the stroke center position of a rotor and camera module assembly equipment, which are applied to camera module assembly and comprise the following steps: S1, electrifying a motor, and adjusting the gain coefficient of an anti-shake part of the motor to keep the rotor of the motor stable in a no-load state; s2, the rotor is controlled to move to limit positions in the first direction and the second direction, magnetic potential values corresponding to the limit positions are obtained, and a target magnetic potential value corresponding to the stroke center position of the rotor is calculated based on the magnetic potential values of the limit positions; and S3, controlling the mover to move to a position corresponding to the target magnetic potential value, and completing repositioning of the stroke center position, so that gaps between the mover and the lens are uniformly distributed. According to the invention, the stroke center position of the motor rotor is dynamically fitted in real time.

The invention relates to a transformer leakage inductance calculation method and device and computer equipment. The method comprises the following steps: acquiring magnetic induction intensity and vector magnetic potential of any point in an iron core window; obtaining magnetic field energy in an iron core window area based on the magnetic induction intensity and geometric parameters of the iron core window; based on the vector magnetic potential and the cross section size of the winding area, obtaining interaction energy of the current and the vector magnetic potential in the winding area; on the basis of the interaction energy and the magnetic field energy, magnetic leakage energy stored by a unit length winding is obtained; the leakage inductance of the transformer is obtained based on the total leakage flux energy of the winding and the winding current of the low-frequency equivalent circuit, and the total leakage flux energy is obtained through calculation based on the leakage flux energy stored by the winding per unit length and the winding length.

The invention discloses an electric field evaluation method and system based on potential-power transmission line coupling, and relates to the technical field of power system protection, and the method comprises the steps: building a current fluctuation model based on a lightning channel engineering model; hybrid emission of a current element i and a charge element q is adopted based on a current fluctuation model; obtaining a voltage U'under the condition of lossy earth through the induced voltage on each section of line; obtaining a total horizontal voltage based on the voltage under the condition of lossy earth and the voltage under the condition of lossless earth; the electric field is evaluated based on the total horizontal voltage. On the basis of a dipole current model, charge distribution introduction, current generation of magnetic potential and charge generation of potential are combined, the relative positions of charges and current elements can be improved when an electric field channel is discretely simulated by a computer, a near-field electric field can be simulated more accurately, and the simulation precision is improved. Meanwhile, the divergence problem caused by calculation truncation errors can be counteracted when the structure is coupled with a coil type structure, and the accuracy and stability of calculation are improved.

The invention discloses a crawler-type magnetic motor applied to axial closed-circuit and open-circuit magnetic fields. The axially-magnetized annular planetary permanent magnets have the magnetic attraction effect on the inner edge face of the pressure-bearing type oval steel crawler belt, two radial magnetic potential included angles on the upper side and the lower side of the inner edge of the crawler belt are formed, side magnetic poles of the planetary permanent magnets at the lower side included angles are attracted by heteropole permanent magnets, the magnetic field of the planetary permanent magnets is in a closed circuit, the magnetic force on the crawler belt disappears, and the crawler belt is in a follow-up state; the side magnetic pole magnetic field of the planetary permanent magnet at the upper included angle is in an open state, and the outer edge of the large circular section of the track on the side is temporarily fixed at the inner edge of the stator under the attraction of the rotating permanent magnet to form a radial magnetic potential for pulling the circular planetary permanent magnet and the track to roll together along the inner edge of the stator; the closed magnetic action environment causes the crawler belt to roll circularly to drive the output shaft to rotate and output. The device can be widely applied to the fields of transportation, energy construction, energy conservation, environmental protection and the like, is simple in mechanical structure and manufacturing process, and has wide industrial and commercial application values.

This invention relates to the field of geophysical exploration, specifically disclosing a method for identifying geological body boundaries based on adaptive matching of multi-source gravity and magnetic data. The method includes: acquiring gravity and magnetic anomaly data; estimating the equivalent source depth; constructing a depth-response mismatch correction field based on the depth attenuation difference between gravity and magnetic potential fields; compensating for and registering the magnetic anomaly with remanent magnetization and demagnetization offset; constructing an adaptive coupling direction tensor based on the consistency of the local gradient structures of the two fields; performing anisotropic boundary enhancement on the two fields using the principal direction of the adaptive coupling direction tensor as a constraint and the coupling strength as a weight; and iteratively fusing the two fields through mutual verification using the adaptive coupling direction tensor as a constraint and the depth-response mismatch correction field as a weight, outputting the fine spatial location of the geological body boundary and an adaptive confidence evaluation result. This invention achieves adaptive registration and direction constraint enhancement in the depth domain of gravity and magnetic data, effectively improving the accuracy and reliability of geological body boundary identification under complex geological conditions.

The invention discloses a transformer iron core magnetic flux leakage suppression structure and method and a transformer, the structure comprises an iron core web plate clamping piece and a magnetic-force shunting module, the iron core web plate clamping piece is provided with at least one fracture, and the magnetic-force shunting module is installed at the fracture and used for forming a magnetic potential barrier at the fracture and introducing the magnetic potential barrier into a specified channel. According to the method, a magnetic flux leakage path is reconstructed fundamentally, the confinement of a traditional magnetic flux leakage shielding or blocking idea is broken, passive shielding is changed into active dredging and management, the eddy current loss can be remarkably reduced, the problems of local overheating, transformer vibration noise and the like can be effectively restrained, and the energy efficiency and long-term operation reliability of the transformer are improved.

The application relates to the technical field of extreme ultraviolet light generation, in particular to a magnetic levitation potential well coagulation device and a metal droplet coagulation method. The magnetic levitation potential well coagulation device comprises a magnetic potential well generator, a detection sensor and a controller. The magnetic potential well generator is arranged at the downstream of a metal droplet generator, and the magnetic potential well generator is configured to generate a magnetic potential well to generate a force on the metal droplets output by the metal droplet generator, and the force can reduce the movement speed of the metal droplets. The detection sensor is arranged at the downstream of the magnetic potential well generator, and the detection sensor can detect the size of the metal droplets. The detection sensor and the magnetic potential well generator are in communication connection with the controller, and the controller is configured to control the start, the stop and the adjustment of the strength of the magnetic potential well generator according to the detection result of the detection sensor. The metal droplet coagulation method can make the size of the metal droplets meet the generation requirements of extreme ultraviolet light when applied to the above-mentioned magnetic levitation potential well coagulation device.

This invention relates to the field of gravity measurement, aiming to provide a small-sized, high-precision gravimeter based on the principle of antimagnetic levitation. The gravimeter includes a low-frequency magnetic potential trap unit, a levitation oscillator unit, a displacement detection unit, and a cavity enclosure unit. The lens groups of the low-frequency magnetic potential trap unit, the levitation oscillator unit, and the displacement detection unit are all located in the cavity of the innermost insulated shell. This invention provides a measurement environment free from external influences for displacement detection of the levitation oscillator, counteracts adjustments to the vertical frequency in the antimagnetic levitation potential trap, and uses a photoelectric converter to measure voltage fluctuations caused by changes in laser intensity to reflect the motion of the object under test, achieving high-precision gravity measurement. The oscillator uses magnetic levitation and does not have mechanical contact with the environment, avoiding long-term irreversible deformation. It eliminates the need for bulky temperature control and magnetic shielding devices or other auxiliary equipment; therefore, the overall size of the gravimeter is small, easy to move, and inexpensive, facilitating widespread adoption.

The application discloses a kind of earth magnetic field horizontal component representation methods of removing pole singularity, comprising: based on adolf schmidt semi-normalized spherical harmonic theory, the spherical harmonic representation of geomagnetic field magnetic potential function is obtained by spherical harmonic polynomial expansion calculation method;With south pole or north pole as center, mirror center symmetry extension is carried out to great circle on sphere, so that each point on sphere has a mirror point, so that the mirror extension function of geomagnetic field magnetic potential function is obtained;Two-dimensional Fourier expansion is carried out to mirror extension function using double Fourier series, and double coverage function expansion is obtained;Based on double coverage function expansion, the horizontal component of geomagnetic field is calculated, i.e. the spherical gradient of spherical magnetic potential function is calculated.The realization is based on the existing IGRF model magnetic potential expansion coefficient, the magnetic field tangent vector representation is obtained without being polluted by pole problem, and a new modeling idea and calculation method of spherical tangent vector field are provided.

An underwater all-optical six-axis force sensor based on an anti-magnetic suspension principle comprises a low-frequency magnetic potential well unit, a suspension mechanical oscillator unit and a displacement detection unit, and the low-frequency magnetic potential well unit suspends and binds the suspension mechanical oscillator unit in a water medium based on the anti-magnetic suspension principle. The stress motion displacement of the suspension mechanical vibrator unit is converted into a light intensity signal through the displacement detection unit, a stress result is obtained through corresponding calculation, and force sensing is achieved. The force sensor is a suspension oscillator without physical contact, the detection mode is all-optical signal detection based on optical fiber without physical contact, and the force sensor can be directly placed in a water medium to carry out force signal measurement. Compared with an optical fiber underwater acoustic sensor, the anti-magnetic levitation force sensor adopted in the scheme has the advantages of being simple in structure and low in system noise, six-axis force signal measurement can be achieved through a single levitation oscillator, and higher low-frequency underwater acoustic detection sensitivity is achieved.

A tracked external rotor magnetic motor utilizing axial closed-circuit and open-circuit magnetic fields is disclosed. An axially magnetized annular planetary permanent magnet attracts the inner edge of a pressure-bearing elliptical steel track, creating two radial magnetic potential angles on the upper and lower sides of the track's inner edge. At the lower angle, the side poles of the annular permanent magnet are attracted by opposite-pole permanent magnets, resulting in a closed magnetic field that eliminates the magnetic force on the track, causing it to follow the magnet's movement. At the upper angle, the side poles of the annular permanent magnet have an open magnetic field, causing the permanent magnet roller to rotate under the radial magnetic potential, driving the output gear ring wheel. This closed-circuit magnetic effect forms the rotational cycle. This device not only increases the output power density but also compensates for the high friction, power loss, and noise associated with planetary rotation mechanisms. It can be widely applied in transportation, energy construction, energy conservation, and environmental protection. Its simple mechanical structure and manufacturing process make it valuable for broad industrial and commercial applications.

The application provides a kind of stator assembly, motor and vehicle, stator assembly includes stator core and three-phase stator winding;Any one winding includes a parallel branch, a is 1 or 2, and when a is 2, 2 parallel branches are rotationally symmetric in the circumferential direction of stator core;Any one parallel branch contains multiple different span hairpin coils, hairpin coil only contains Z / P, (Z / P+1) and (Z / P-1) three spans, any one winding exists Z / P, (Z / P+1) and (Z / P-1) three span hairpin coils;8 slot layers of the same stator slot only exist hairpin coils of the same phase stator winding in the application. The magnetic field distribution of multiple parallel branches in each winding is the same, the magnetic potential is balanced, the circulating current between the parallel branches is avoided, the efficiency of the flat wire motor is improved, the local temperature rise of the winding is avoided, and the service life of the flat wire motor is prolonged.

The invention discloses a design method of a built-in permanent magnet synchronous motor and a motor obtained by the method, and aims to solve the problems of magnetic field modeling precision and efficiency imbalance, multivariable optimization dimension redundancy and performance index imbalance of the existing motor. According to the method, a stator slotting equivalent air gap magnetic permeability model is constructed through a magnetic potential penetration method, and rapid and accurate calculation of a magnetic field is realized by coupling permanent magnet magnetomotive force harmonic expansion; analyzing a quantitative variable interaction effect in combination with variance, and compressing an experiment dimension from 32768 dimension to 32 dimension through an L32 mixed horizontal orthogonal array; and constructing a multi-performance evaluation system based on entropy weight-TOPSIS. After implementation, the magnetic field calculation efficiency is improved by 92%, and the fundamental wave error is lt; the method has the advantages of high power density and high stability, the calculation resource consumption is reduced by 37%, the motor torque ripple is reduced by 42.7%, the cogging torque is inhibited by 85%, the comprehensive efficiency is improved by 1.5%, and the requirements of high power density and high stability of scenes such as new energy automobile driving and the like can be met.

This application discloses a multi-operating magnetomotive force hybrid excitation linear motor, including an armature primary side, an excitation primary side, and a secondary side located between the armature primary side and the excitation primary side. The armature primary side includes multiple armature teeth, each of which has an armature winding wound on it. The excitation primary side includes multiple excitation teeth, each of which has an excitation winding wound on it, and each excitation tooth is provided with a permanent magnet array. The secondary side includes multiple segmented modulation blocks. The multi-operating magnetomotive force hybrid excitation linear motor provided in this application adopts a split primary structure, which can largely solve the space limitation problem caused by the armature winding and excitation winding being on the same side in hybrid excitation motors of related technologies. It effectively reduces the conflict between electrical and magnetic loads caused by the armature winding and permanent magnets being on the same side, and introduces additional air gap magnetic field working harmonics to compensate for the insufficient average thrust of the traditional alternating pole structure.

This invention provides an analytical method for calculating the cogging torque of an asymmetric magnet structure-embedded permanent magnet motor, belonging to the field of motor design and electromagnetic field analysis. The method includes: based on the principle of constant total magnetic flux, the asymmetric magnet structure is equivalent to a symmetric structure with tangentially and radially distributed permanent magnets, constructing a symmetric rotor topology; then, an improved subdomain model is established, including an air gap subdomain, a permanent magnet subdomain, an air slot subdomain, and a magnetic bridge subdomain; the slotless air gap magnetic flux density distribution is solved using a system of vector magnetic potential general equations; the stator slotting influence coefficient is obtained using a conformal mapping method to correct the slotless air gap magnetic flux density and obtain the true air gap magnetic flux density distribution; finally, the cogging torque is calculated based on the Maxwell stress tensor integral method. This invention enables rapid and accurate calculation of the cogging torque of asymmetric V-type, W-type, and straight-type embedded permanent magnet motors, providing an efficient analytical tool for the initial design and optimization of such motors.

The present application belongs to the field of rail transit technology, and particularly relates to a kind of calculation method and model of hollow coil inductance value of track circuit, for solving the problem that the geometric size of hollow coil itself is larger, if enough far place is selected as the boundary of field, the calculation amount of vector magnetic potential A is very large, the calculation time is long, and the calculation accuracy cannot be guaranteed.The present scheme selects a calculation field for the inductance of hollow coil, and gives the determination method of vector magnetic potential A on the outer boundary, reducing the calculation amount of inductance value.Compared with the prior art, the present application avoids the problem of too large outer boundary, the calculation amount of vector magnetic potential A is small, the calculation is fast, and the calculation accuracy is effectively guaranteed, which contributes to the stability of track circuit and the safe operation of train.

The application discloses a kind of outer rotor wheel hub permanent magnet motor no-load stray magnetic field analytical calculation method, it is related to the calculation method of motor stray magnetic field, comprising the following steps;S1: in two-dimensional polar coordinate system, according to the establishment of motor equivalent model including 7 subdomains according to the magnetization mode of motor structure, and the magnetization intensity expression of permanent magnet is established;S2: with vector magnetic potential as potential function, the control equation of each subdomain is established, and the general solution of the vector magnetic potential of each subdomain is solved;S3: the constraint equation is written by the boundary condition and the interface condition of each subdomain, and the harmonic coefficient is solved;S4: the expression of vector magnetic potential in outer air domain is written, and the partial derivative is calculated to calculate the radial component and tangential component of stray magnetic field.The application can meet the requirements of high precision, fast calculation speed and low cost simultaneously.The calculation efficiency of stray magnetic field is greatly improved;It can be used in the initial design stage of motor prototype.

The invention discloses a polar slot matching optimization method and system for a bidirectional modulation permanent magnet vernier motor, belongs to the technical field of permanent magnet motor design, and aims to solve the problems of low output torque, high harmonic content and large torque pulsation caused by unreasonable polar slot matching of the bidirectional modulation permanent magnet vernier motor. The method comprises the following steps: establishing a complete magnetic field analysis model containing air gap ratio magnetic conductance, permanent magnet magnetic potential, armature magnetic potential and air gap flux density; harmonic components of the permanent magnetic field and the armature magnetic field are analyzed, static harmonic magnetic fields generated by the stator permanent magnets are identified, and the number of pole pairs of at least one static harmonic magnetic field in the armature magnetic field is equal to that of pole pairs of the stator permanent magnets; establishing a constraint condition, wherein a pole slot matching selection principle satisfies one of six equations; and screening and verifying the optimal scheme by combining the engineering constraint that the winding factor is not less than 0.9.

The invention particularly relates to a method for constructing and simplifying an axial force mathematical model of an electric propulsion conical motor of an electric aircraft, which comprises the following steps of: firstly, calculating to obtain quadrature-direct axis magnetic potential distribution by using air gap equivalence and distribution, further solving armature air gap flux density distribution, and equivalently dividing the armature air gap flux density distribution into two surface-mounted motors according to the characteristics of the motors; a magnetic circuit method, an iteration method and boundary conditions are used for solving permanent magnet air gap flux density distribution, and after superposition, an axial force mathematical model is obtained through a Maxwell tensor method; and according to the characteristics of the model, the series operation process and related parameter variables are simplified, so that the model greatly shortens the operation time on the premise of ensuring the calculation accuracy, and a guarantee is provided for the implementation of a subsequent control strategy.

The application belongs to the technical field of permanent magnet motor modeling, and discloses a mathematical modeling method of an asymmetric interior permanent magnet motor, which specifically comprises the following steps: considering that the permanent magnet axis of the asymmetric interior permanent magnet motor is ahead of the maximum reluctance axis by 45 degrees of electric angle, selecting the permanent magnet axis as a reference direct axis, and establishing an air gap distribution function of the asymmetric interior permanent magnet motor; according to the air gap distribution function, successively establishing winding magnetic potential, magnetic density and flux distribution functions under the action of A-phase, B-phase and C-phase currents, and calculating an inductance matrix of the asymmetric interior permanent magnet motor; performing park transformation on the motor model in a three-phase coordinate system to obtain a mathematical model of the asymmetric interior permanent magnet motor in a corresponding dq coordinate system. The application realizes the establishment of the mathematical model of the asymmetric interior permanent magnet motor considering the magnetic axis offset, and provides a model basis for the control method design and operation performance analysis of the asymmetric interior permanent magnet motor with improved torque component utilization.

The invention discloses a novel magnetic flux switching motor with split magnets and an analytical modeling method thereof, the motor comprises a rotor, a stator, stator teeth, stator slots, stator slot permanent magnets, rotor slots and permanent magnets between the stator slots, and each permanent magnet is inserted into an iron core at the middle position and split into two sections of permanent magnets with equal arc angles; the permanent magnets of the stator slots are magnetized radially, and the permanent magnets among the stator slots are magnetized tangentially; the analysis modeling method comprises the following steps: firstly, dividing a motor into sub-domains to be solved, then deducing a vector magnetic potential general solution expression of each sub-domain, solving direct current and harmonic coefficients in the vector magnetic potential general solution expression according to boundary conditions among the sub-domains, and on the basis of the calculated magnetic potential expression, calculating the magnetic potential of the motor. And air-gap magnetic fields under an open-circuit field and an armature reaction field can be respectively obtained, so that the electromagnetic torque can be analyzed and calculated. Compared with a traditional motor structure, the motor has better electromagnetic performance, the analysis result of the method is basically consistent with the finite element result, and the correctness of an analysis model is verified.

A method for determining characteristics of a laminated core transformer and related device, the magnetic characteristics and / or loss characteristics of the laminated core transformer are determined based on an equivalent magnetic circuit model and magnetic induction under a direct current biasing condition. The equivalent magnetic circuit model is generated by equivalent correction of magnetic circuit parameters based on a direct current magnetic potential generated by a direct current component of a winding current when the laminated core transformer is in operation, the magnetic circuit parameters corresponding to an alternating current equivalent magnetic circuit model of a joint area of the laminated core transformer under a condition of no direct current biasing, the alternating current equivalent magnetic circuit model being generated based on a two-dimensional equivalent planar structure of the joint area, a magnetization curve and a core loss curve of a silicon steel sheet material. The equivalent magnetic circuit model can reflect a physical process in which the joint area preferentially enters a nonlinear magnetization region and a magnetic flux path is reconstructed under the action of the direct current biasing. Based on the equivalent magnetic circuit model, the influence of the direct current biasing on the magnetic characteristics and core loss of the laminated core transformer as a whole can be effectively reduced or avoided.

The invention relates to the technical field of marine surveying and mapping, investigation and detection, in particular to a real-time positioning interpretation method on a magnetic field profile of an underwater point magnetic source target object, which comprises the following steps: establishing a marine surveying and mapping space rectangular coordinate system; calculating the induced magnetization intensity and the gravitational potential generated by the point magnetic source at the observation point; determining the relationship between the magnetic potential and the attraction potential; determining the relationship between the magnetic field intensity and the magnetic potential; determining the magnetic field intensity of the point magnetic source according to the total magnetic field intensity in combination with the normal magnetic field intensity; determining an underwater point magnetic source target object magnetic anomaly calculation model; calculating and generating a magnetic anomaly plane contour map, a magnetic anomaly maximum value point coordinate and a magnetic anomaly minimum value point coordinate; according to the geomagnetic inclination angle and based on the corresponding relation between the positioning quantile and the geomagnetic inclination angle, the positioning quantile is determined, and the actual position of the underwater point magnetic source target object is calculated and determined. According to the invention, the corresponding position of the target object on the magnetic field profile can be rapidly and accurately interpreted in real time on a detection site.

The application relates to a reel type electromagnetic elastic absolute stress monitoring device facilitating prefabricated winding, which is used in the field of nondestructive testing of ferromagnetic materials and particularly relates to nondestructive testing of absolute stress of ferromagnetic material components. The device is composed of a winding of multiple coils in series or in parallel, multiple dumbbell-shaped soft magnetic material cores and single or multiple detection elements. The device can be directly assembled on a measured ferromagnetic material component to complete installation without on-site winding, and can be mass-produced in a factory, so that the installation of the sensor can be completed on site, and the device is convenient to disassemble and replace, thereby avoiding the problem of winding difficulty of a concave arc surface in a magnetic core during prefabricated winding. Under pulse or alternating excitation signals, the dumbbell-shaped soft magnetic material core with the winding generates a magnetic potential, and a magnetic flux is generated in the sensor and the measured component, so that the measured component is magnetized, an electric signal is output by the detection element, magnetic characteristic quantities related to absolute stress of the component are obtained according to the electric signal, and nondestructive testing of absolute stress of the ferromagnetic material component is realized.

The invention discloses a permanent magnet operating mechanism and a steady-state position switching method thereof. The permanent magnet operating mechanism comprises a soft magnetic sliding block, a push rod, a supporting frame and a controllable magnetic field unit. The supporting frame is provided with a supporting body and a sliding rail, the sliding rail is arranged on the supporting body, the supporting body is provided with an installation space located below the sliding rail, and the controllable magnetic field unit is arranged in the installation space; the controllable magnetic field unit comprises a permanent magnet array and an auxiliary magnetic regulation and control unit; the permanent magnet array is provided with a plurality of permanent magnets which are arranged at intervals in the extending direction of the sliding rail. The push rod is installed on the sliding rail in a sliding mode, the soft magnetic sliding block is connected with the push rod, and the soft magnetic sliding block is suspended above the permanent magnet array. The auxiliary magnetic regulation and control unit is configured to guide the magnetic potential distribution of the corresponding magnetic potential adsorption sites or adjust the magnetic flux density of the corresponding magnetic potential adsorption sites so as to drive the soft magnetic sliding block to move between the magnetic potential adsorption sites. According to the invention, the complex control requirements of an intermediate transition state, graded operation or multi-station operation can be met.

This invention proposes a method and system for calculating the no-load magnetic field of a surface-mounted permanent magnet synchronous motor with unequal-thickness magnetic poles. Relating to the field of permanent magnet motor magnetic field calculation, the invention divides the solution domain of the surface-mounted permanent magnet synchronous motor into subdomains and determines the basic structural parameters of each subdomain. Using the separation of variables method, based on the basic structural parameters of each subdomain, a general solution expression for the vector magnetic potential containing undetermined coefficients is determined for each subdomain. Based on the general solution expression for the vector magnetic potential in each subdomain, combined with the boundary conditions of adjacent subdomains, the vector magnetic potential in each subdomain is iteratively calculated until the iteration stops, yielding the final vector magnetic potential in each subdomain. Based on the final vector magnetic potential in each subdomain, the no-load magnetic field of the motor is calculated. This invention considers the effects of stator slotting, unequal-thickness permanent magnets, and core saturation, accurately determining the magnetic field of each part of the motor, laying a theoretical foundation for subsequent calculations of motor electromagnetic parameters, motor optimization design, and electromagnetic vibration reduction.

The invention relates to a high-vibration-resistance railway signal relay magnetic circuit system which is used for controlling connection and disconnection of a railway signal relay contact system and achieving signal conversion and transmission. Comprising an armature unit, a fixing unit, a buffer unit, a magnetism maintaining unit, a yoke unit, a contact system support unit, a self-alignment positioning unit, an iron core unit, an iron core fixing module, a buffer unit and a coil unit. The magnetic conduction efficiency of the magnetic circuit system is improved, and the magnetic circuit system has a self-alignment positioning function. By changing the connection structure mode of the yoke unit and the contact system of the magnetic circuit system, the magnetic circuit system does not need to be adjusted after being assembled and the support of the contact system is installed, and the requirement of the magnetic circuit system of the railway signal relay on the mutual parallelism of the armature unit, the yoke unit, the iron core central plane and the contact system can be met.

This invention relates to the field of integrated design of power electronic converters and magnetic components, and discloses an application method of three-phase PFC integrated magnetic technology, including: configuring excitation windings in the independent magnetic circuit branches of the magnetic core so that the excitation currents of each phase differ by a phase angle of 120° on the time axis; establishing a magnetic flux balance path in the common area inside the magnetic core, and forming a virtual magnetic neutral point with equal magnetic potential by utilizing the spatial vector synthesis and instantaneous polarity cancellation of the fundamental magnetic flux; setting a non-uniform magnetoresistive layer between the side column and the middle column to establish a gradient magnetoresistive distribution field, guiding the high-frequency ripple magnetic flux to be constrained within a specific leakage magnetic path, and orthogonally distributed with the main energy conversion path in electromagnetic space. This invention achieves electromagnetic decoupling of the inductance parameters of each phase of the integrated magnetic component by constructing a virtual magnetopotential zero point and orthogonal magnetic circuits, maintaining the independence of dynamic response, eliminating cross-phase parameter disturbances, and reducing the overall volume of the magnetic component.

The invention discloses a manufacturing method for pushing a machine to operate in a magnetic attraction force and magnetic repulsive force mode through magnetic potential energy of a magnet and magnetic potential energy of an electromagnet, and relates to the field of new energy sources, and the magnetic potential energy of the electromagnet and the magnetic potential energy of the magnet are used for driving a connecting rod to move up and down in a magnetic attraction force and magnetic repulsive force mode. The magnetic potential energy of the electromagnet and the magnetic potential energy of the magnet are converted into mechanical energy, so that the whole system is driven to operate by the magnet, the electromagnet, a connecting rod, a crankshaft, a generator, a power supply, a switch, a fixed magnet component, a lead, a power output device and a circuit board (or other devices for controlling the on-off time of the electromagnet); the device comprises a base, a bracket, an electromagnet fixing component, a current regulator (regulating the size of a large amount of electromagnets), a voltage regulator and a pipe. During operation of the system, the magnetic potential energy of the electromagnet and the magnetic potential energy of the magnet are fully utilized, a brand-new energy utilization mode is achieved, energy is saved in the energy conversion process, carbon emission is reduced, and the purposes of energy conservation and emission reduction are achieved, so that compared with an existing internal combustion engine, the energy conservation and emission reduction are achieved. The influence of the internal combustion engine on the environment at various times is greatly reduced, and the national energy-saving and emission-reducing policies and policies are met.

The application discloses an underwater all-optical six-axis force sensor based on the anti-magnetic suspension principle, which comprises a low-frequency magnetic potential well unit, a suspended mechanical oscillator unit and a displacement detection unit. The low-frequency magnetic potential well unit suspends the suspended mechanical oscillator unit in the water medium based on the anti-magnetic suspension principle. The force movement displacement of the suspended mechanical oscillator unit is converted into an optical intensity signal by the displacement detection unit, and the force result is calculated to realize force sensing. The force sensor is a suspended oscillator without physical contact, the detection mode is all-optical signal detection without physical contact based on an optical fiber, and the force signal measurement can be directly carried out in the water medium. Compared with the optical fiber underwater acoustic sensor, the anti-magnetic suspension force sensor has the advantages of simple structure and low system noise, and the six-axis force signal measurement can be realized by a single suspended oscillator, and the underwater acoustic detection sensitivity is higher.