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60results about How to "Not easy to demagnetize" patented technology
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Aroma massage magnet therapy moxibustion rod
InactiveCN101632620AWith high temperature resistanceNot easy to demagnetizeDevices for heating/cooling reflex pointsElectrotherapyMedicineMassage
The invention provides an aroma massage magnet therapy moxibustion rod which comprises a moxibustion head component, a connection component, a screw joint, an outer pipe, an inner pipe, a swath shrinking clamp component, a thrusting component, a push button and a sealing cover, wherein the moxibustion head component comprises a moxibustion head which is internally provided with a magnetic ring; the moxibustion head component and the connection component are magnetically connected, and the magnetic connection enables the moxibustion head component and the connection component to be simultaneously rolled and plugged; the connection component is connected with the upper part of the screw joint through threads; the lower part of the screw joint is connected with the upper end of the outer pipe through a thread; the swath shrinking clamp component and the thrusting component are tightly matched and connected; the push button passes through a vertical elongated push button slide way hole on the wall of the outer pipe and a vertical elongated push button slide way hole on the wall of the inner pipe and is connected with the thrusting component. The aroma massage magnet therapy moxibustion rod realizes safety, small size, simplicity, convenience and multiple functions, saves swaths and has inimitable advantages compared with the same products of the prior art.
Owner:温宗金
Isotropic bonded NdFeB magnet and magnetic roller consisting of same
ActiveCN101673606AHigh energy productImprove remanencePermanent magnetsInorganic material magnetismMetallurgyRare earth
The invention relates to a magnetic roller used in a laser printer and a copier. An isotropic bonded NdFeB magnet used by the magnetic roller contains rare earth permanent magnetic powder and adhesive resin, wherein the rare earth permanent magnetic powder is a mixture of NdFeB magnetic powder and ferrit magnetic powder, and the formed magnet has the length of between 210 and 910mm. When the isotropic bonded NdFeB magnet is used to replace one or more ferrit permanent magnet poles in the magnetic roller, because the bonded NdFeB magnet has stronger magnetic performance than ferrit magnets, a strong magnetic filed can be formed on an outer surface taking the bonded NdFeB magnet as a pole so as to provide stronger magnetic filed adsorptive power, contribute to the size distribution of multiple kinds of color matching powder, and reduce the grey back of copying and printing to contribute to clear imaging.
Owner:上海三环磁性材料有限公司 +1
Rotor, axial gap type motor, driving method of motor, compressor
InactiveCN101107762ASmall torqueIncrease working pointMagnetic circuit rotating partsMagnetic circuit stationary partsMotor driveReverse salient
A rotor, an axial gap type motor comprising the rotor having reverse salient polarities and rotatable around a prescribed axis, a motor driving method, and a compressor. A plurality of magnets (12a, 12b) are annularly disposed on a substrate (11) with their polarities set symmetrical about a shaft hole (10). For example, the magnets (12a, 12b) present N-poles and S-poles on their stator side (toward you from paper surface). The plurality of magnetic substances (13a, 13b) are disposed vertically to the rotating axis direction, more specifically, extendedly between the magnets (12a, 12b).
Owner:DAIKIN IND LTD
Ball float type liquidometer with vernier display
ActiveCN105277258AIncrease stiffnessGuaranteed measurement accuracyLevel indicators by floatsFloat chamberRolling-element bearing
The invention relates to a ball float type liquidometer with vernier display. The ball float type liquidometer comprises a ball float chamber and a ferromagnetic spherical floating ball arranged therein, a vernier outside the ball float chamber, a calibrated scale and a vernier guide rail. The vernier comprises magnetic steel, a frame and a rolling system which is horizontally fixed and sleeved in the frame; the rolling system comprises rolling wheels which are provided with radial grooves along a circumferential surface, rolling bearings and shafts; the magnetic steel is disposed between the ball float chamber and the frame and is fixed outside one side surface close to the ball float chamber on the frame, and the magnetic pole of the magnetic steel is right oriented towards the floating ball; the vernier guide rail is sleeved in the frame and is disposed between the magnetic steel and the rolling system; and the rolling system enables the rolling wheels to roll vertically along the vernier guide rail at groove positions through a magnetic coupling force between the magnetic steel and the floating ball. The ball float type liquidometer is simple and scientific in structure, reliable in application performance, easy to manufacture and low in cost, reduces defects in the prior art and effectively meets needs in correlation fields.
Owner:DALIAN JIAXIN ELECTROMECHANICAL INSTR CO TD
Superstrong magnetic coating and preparation method thereof
InactiveCN110684390AExpand the scope of applicationGlass transition temperature riseMagnetic paintsPolyurea/polyurethane coatingsComposite materialDefoaming Agents
The invention relates to the field of coatings, and discloses a superstrong magnetic coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 30-50 parts of film-forming resin, 50-450 parts of permanent magnet powder, 30-50 parts of diluents, 1-3 parts of a defoaming agent, 3-5 parts of a coupling agent and 3-10 parts of a toughening agent. The preparation method includes the following steps that magnetizing operation is performed on the permanent magnetic powder; primary stirring operation is performed on the permanent magnetic powder, the diluent, the defoaming agent, the coupling agent, the toughening agent and part amount of the film-forming resin to enable the raw materials to be mixed uniformly to obtain mixed liquid; andsecondary stirring operation is performed on the mixed liquid and the remaining amount of the film-forming resin to enable the raw materials to be mixed uniformly to obtain the superstrong magnetic coating. The coating has higher magnetic powder content and higher magnetic absorption performance, can attract hard magnetic materials such as magnets, and can attract soft magnetic materials such as iron, cobalt and nickel, and the application range of magnetic coatings is greatly expanded.
Owner:广东东明新材科技有限公司
Mixed-type permanent magnetic pole rotor
PendingCN107516953AImprove utilizationNot easy to demagnetizeMagnetic circuit rotating partsElectric machineryMagnetic poles
The invention discloses a mixed-type permanent magnetic pole rotor. The permanent magnetic pole rotor comprises a rotor core, n poles are arranged on the rotor core, each pole has three pieces of magnetic steel, the magnetic steel on each pole is arranged as the combination of a V shape and a horizontal stroke shape, the horizontal stroke shape stands for 1 piece of magnetic steel C and a radial magnetic field, the V shape stands for 2 pieces of magnetic steel D and a tangential magnetic field, and the N and S orientations of the magnetic steel corresponding to the adjacent poles are opposite. According to the mixed-type permanent magnetic pole rotor, the shortcomings of the rotor structure of the radial magnetic field of the magnetic steel and the rotor structure of the magnetic steel tangential field are combined, and the two rotor structure forms are applied simultaneously to the same type of motors, the shortcomings are complemented, and the external characteristics of the overall motor are improved.
Owner:安徽栋霖电气有限公司
Rotor And Brushless Motor
ActiveCN103812242ANot easy to demagnetizeMagnetic circuit rotating partsManufacturing dynamo-electric machinesBrushless motorsMagnetic poles
A rotor includes a first rotor core, a second rotor core, a field magnet, and a detected portion. The first rotor core includes a first core base and a plurality of first claw-shaped magnetic pole portions. The second rotor core includes a second core base and a plurality of second claw-shaped magnetic pole portions. The first and second core bases face to each other, and the first and second claw-shaped magnetic pole portions are alternately arranged in the circumferential direction. The field magnet is located between the first and second core bases in the axial direction. The field magnet has the first claw-shaped magnetic pole portion function as a first magnetic pole and has the second claw-shaped magnetic pole portion function as a second magnetic pole. A detected portion, which generates a magnetic flux, is arranged at an outer axial end surface of the first rotor core.
Owner:DENSO CORP
Built-in hybrid permanent magnet motor
ActiveCN108808910AIncrease profitImproved rotor flux pathMagnetic circuit rotating partsElectric machinePermanent magnet motor
The invention discloses a built-in hybrid permanent magnet motor. V-shaped grooves (2) are formed in the circumferential direction of a rotor (2); each side of the V-shaped groove is divided into an upper rectangular structure and a lower rectangular structure; the two rectangular structures are divided into a large rectangular structure (8) and a small rectangular structure (7); permanent magnetsmade of ferrite and neodymium iron boron are arranged in the grooves separately; Z-shaped reinforcing ribs (5) are arranged at the bottoms of the V-shaped grooves; a horizontal line-shaped groove (3)is formed between each V-shaped groove and the outer edge of the rotor; a neodymium-iron-boron permanent magnet (4) is placed in each horizontal line-shaped groove; a vertical magnetizing mode is adopted for all the permanent magnets; the V-shaped grooves and the horizontal line-shaped grooves form a group of groove structures; and a sickle-shaped magnetic isolation bridge (6) is arranged betweenthe two groups of groove structures. According to the built-in hybrid permanent magnet motor, the permanent magnet structures with different materials are arranged asymmetrically, so that the utilization rate, the output torque and efficiency of the permanent magnets of the motor are improved, and the torque pulsation is lowered.
Owner:JIANGSU UNIV
Permanent magnet generator rotor
InactiveCN101640442AReduce weightReduce moment of inertiaMagnetic circuit rotating partsManufacturing stator/rotor bodiesWind drivenElectrical polarity
The invention discloses a permanent magnet generator rotor which comprises a barrel-shaped magnet yoke, a magnet yoke table, tegular permanent magnets, a wheel spoke and a rotating shaft, wherein thepermanent magnets and the magnet yoke are fastened on the barrel-shaped magnet yoke by non-magnetic stainless steel bolts, the permanent magnets are arranged at the outermost edge of the rotor, and the polarities of the permanent magnets are alternatively arranged along the circumference. The magnet yoke table reduces the magnetic-flux leakage between the adjacent magnets and improves the utilization ratio of the permanent magnets. The rotor has reasonable magnetic circuit design, simple structure, convenient installation and less permanent magnet consumption, and is especially suitable for large-size wind-driven generators with low rotating speeds.
Owner:深圳市煜亚磁性器材有限公司
Modified magnetic nanoparticle, preparation method thereof, non-polar solvent-based magnetic liquid, and preparation method and application of magnetic liquid
InactiveCN111063500AEasy to prepareEasy to operateMaterial nanotechnologySilicaMagnetic liquidsSol-gel
The invention discloses a modified magnetic nanoparticle, a preparation method thereof, a non-polar solvent-based magnetic liquid, and a preparation method and an application of the magnetic liquid. The preparation method of the modified magnetic nanoparticle comprises the following steps: preparing a Fe3O4 magnetic nanoparticle; carrying out a sol-gel reaction on the Fe3O4 magnetic nanoparticle and a silicon source to obtain a silica-coated magnetic nanoparticle, mixing the silica-coated magnetic nanoparticle with ethanol and ammonia water, and uniformly stirring under a 20-75 DEG C water bath condition to obtain a magnetic mixed solution; and adding a modifying solution into the magnetic mixed solution at a certain speed, and carrying out a modification reaction. The modified magnetic nanoparticle is uniform in particle size and morphology distribution and controllable in particle size, has good dispersity in polar solvents and non-polar solvents, can form a photonic crystal structure, has good magnetic properties, optical properties and chemical stability, can be used for preparing photonic crystals, electronic paper and the like, and has a huge application prospect in the fields of electronics, optics, chemical engineering and the like.
Owner:SUN YAT SEN UNIV
Permanent magnet type magneto-rheological vibration isolator with adjustable rigidity damping
PendingCN110273963ANot easy to demagnetizeNot easy to magnetizeSpringsNon-rotating vibration suppressionMagnetic currentEngineering
The invention discloses a permanent magnet type magneto-rheological vibration isolator with adjustable rigidity damping. The magneto-rheological vibration isolator comprises a magnetism isolation component, two rigidity adjusting components with the same structure and two damping adjusting components with the same structure; the magnetic isolation component specifically comprises a magnetic isolation base, a cross magnetic isolation plate and an outer sleeve, wherein the cross magnetic isolation plate is fixed on the magnetic isolation base, the outer sleeve is arranged outside the cross magnetic isolation plate, the cross magnetic isolation plate is used for dividing the magnetic isolation component into four independent regions, the independent regions of the two opposite angles are the rigidity adjusting components, and the damping adjusting components are arranged in two independent regions adjacent to the rigidity adjusting components. According to the permanent magnet type magneto-rheological vibration isolator with adjustable rigidity damping, and permanent magnet materials with relatively large difference are formed by utilizing the two magnetic properties of a neodymium-iron-boron and a aluminum-nickel-cobalt to form a hybrid permanent magnet, and a controllable magnetic field is provided for the two magnetic sensitive viscoelastic materials, and therefore, a magnetic field with an adjustable size can be superimposed on the basis of a constant magnetic field by combining the characteristics of the two materials.
Owner:GUANGDONG POWER GRID CO LTD +1
Magnetic silica filler, magnetic affinity filler and preparation method and application of magnetic affinity filler
InactiveCN109865496AEvenly dispersedGuaranteed uniformityOther chemical processesSolid sorbent liquid separationMicrosphereSilicon dioxide
The invention relates to the technical field of magnetic nano materials, and particularly relates to a preparation method of magnetic silica filler. The preparation method comprises the following steps: taking porous high-molecular polymer microspheres as a template, introducing Fe3O4 magnetic nanoparticles in situ, carrying out a sol-gel reaction on a silicon source, then oxidizing the magnetic Fe3O4 in situ to be gamma-Fe2O3, and carrying out high-temperature calcining to prepare magnetic silica filler magnetic silicon dioxide microspheres. The magnetic silicon dioxide filler magnetic silicon dioxide microspheres prepared by the method is controllable in particle size and pore size, the magnetic particles are gamma-Fe2O3 and are uniformly dispersed in a silicon dioxide skeleton structure. The magnetic silica filler is further applied, and heparin modification is carried out on the magnetic silica filler to prepare magnetic affinity filler which can be used for separating and purifying antithrombin III.
Owner:PEKING UNIV SHENZHEN GRADUATE SCHOOL
Magnetic writing control method for magnetic strip read/write device
InactiveCN101393611AHigh magnetic recording signal qualityImprove read rateDigitally marking record carriersCo-operative working arrangementsSoftware systemReader writer
The invention discloses a method for control magnetic writing of a magnetic stripe reader-writer, which comprises the following steps: firstly, driving a write head by the writing current of a writing low diamagnetic medium when the magnetic stripe reader-writer receives a magnetism writing command, wherein the magnetic stripe reader-writer is in a low diamagnetic magnetism writing state; secondly, identifying a swiped magnetic card or bankbook, wherein if the identification result is the bankbook, the write head is also driven by the writing current of the writing low diamagnetic medium, and the magnetic stripe reader-writer is in the low diamagnetic magnetism writing state, and if the identification result is the magnetic card, the write head is driven by the writing current of a writing high diamagnetic medium, and the magnetic stripe reader-writer is switched to be in a high diamagnetic magnetism writing state; and thirdly, reading magnetic stripe information of the magnetic card or the bankbook by a reading head and comparing the magnetic stripe information with system write data, wherein if the magnetic stripe information is in accordance with the system write data, the magnetism writing work is finished, but if the magnetic stripe information is not in accordance with the system write data, the magnetism writing operation is performed again by swiping the magnetic card or the bankbook, and the operation can be performed repeatedly until the magnetism writing is successful. The method can be applied to the prior software systems of banks and is compatible with the prior magnetic stripes used by the banks.
Owner:SHENZHEN NANTIAN DONGHUA TECH
Automatic glass scrubbing device
The invention belongs to the field of A47L1 / 00 and particularly discloses an automatic glass scrubbing device. The automatic glass scrubbing device comprises a cleaning brush and further comprises an air cylinder, a piston, a push rod, a first magnetic part, a second magnetic part and sliding rails fixed to the left side and the right side of glass. The cleaning brush is arranged on the sliding rails in a sliding manner. The piston is arranged in the air cylinder in a sliding manner. Fluoro trichloromethane is arranged between the piston and the bottom of the air cylinder. The upper end of the push rod is fixed to the cleaning brush, and the lower end of the push rod is fixed to the piston. The first magnetic part and the second magnetic part are fixed to the upper end and the lower end of glass correspondingly. The cleaning brush is provided with an iron block capable of being attracted to the first magnetic part and the second magnetic part. According to the scheme, by means of the fluoro trichloromethane and the character that the environment temperature changes, no extra power device is needed, cleaning of the glass can be achieved, energy is saved, and in addition, operation is convenient.
Owner:CHONGQING CONGBO ENERGY SAVING GLASS CO LTD
An axial magnetic field permanent magnet motor combined magnetization type permanent magnet built-in rotor
ActiveCN111541325BNot easy to demagnetizeThe salient pole effect is obviousMagnetic circuit rotating partsPermanent magnet rotorElectric machinery
Owner:NANJING UNIV OF SCI & TECH
Mixed-excitation magnetic pole structure
InactiveCN102420511ASmall negative torqueEasy to installMagnetic circuit rotating partsSynchronous motorsMagnetic polesMagnetization
The invention discloses a mixed-excitation magnetic pole structure, which comprises a core magnetic pole, a coil winding and a permanent magnet, wherein the coil winding is wound on the core magnetic pole; the permanent magnet is arranged in the core magnetic pole; the magnetization direction of the permanent magnet is the centerline direction of the coil winding or the core magnetic pole; and a distance L between the permanent magnet and the pole face of the core magnetic pole is more than zero. After current in a coil is cut off, a residual induced magnetic field can tend to be zero within a shorter time under the action of the permanent magnet, so that a larger current cutting-off angle can be obtained; a motor using the magnetic pole structure has higher average torque and slighter vibration; in addition, the magnetic pole structure is easy to manufacture and mount, and the permanent magnet is difficult to demagnetize and long in service life.
Owner:何嘉颖
Preparation method of paper with magnetic characteristics
InactiveCN102587215AHave magnetic propertiesStrong magnetic propertiesSpecial paperPaper/cardboardHandwritingPapermaking
The invention provides a preparation method of paper with magnetic characteristics, in particular to the paper with the magnetic characteristics, which is prepared by filling magnetic inorganic materials into the cell cavities of paper pulp fibers. The preparation method comprises the following steps of: firstly, smelting boron oxide, aluminum oxide, silicon oxide rare metal oxide and the like serving as raw materials at a high temperature to prepare magnetic inorganic material grains; and then, by utilizing a papermaking process, filling the magnetic inorganic material grains into cell cavities so as to prepare the paper with the magnetic characteristics. The paper prepared by the invention belongs to a renewable resource and has the magnetic characteristics including magnetic responding, magnetic recording and the like, so that the paper can be applied to special paper products needing special identification, such as invoice paper, packaging paper and handwriting paper. In the paper preparation process, special equipment is not needed, the operation is simple and the industrial production is easy to realize; and the magnetism is permanent so that the paper is not easy to degauss and cannot be counterfeited easily.
Owner:SHAANXI UNIV OF SCI & TECH
Straight seam automatic welding device
ActiveCN109396702AEasy to operateNo deviationWelding/cutting auxillary devicesAuxillary welding devicesSoldering gunEngineering
The invention belongs to the field of welding devices, and particularly discloses a straight seam automatic welding device. The straight seam automatic welding device comprises a machine frame and a welding structure; the machine frame is provided with a workbench; the middle of the workbench is provided with a strip-shaped groove, the strip-shaped groove coincides with the moving direction of a welding gun, and a positioning plate is located in the strip-shaped groove and can slide up and down along the strip-shaped groove; the two sides of the workbench are provided with pushing mechanisms correspondingly; two side parts of the positioning plate are provided with slide grooves, and each slide groove is internally and slidably connected with a slide rod; the positioning plate is providedwith a cavity, and a vertical column is arranged in the cavity; the upper portion of the vertical column is rotationally connected with an electro-conductive first ring and an electro-conductive second electro-conductive; the slide rods are connected with the first ring / the second ring through connection rods; the surfaces, abutting against each other, of the first ring and the second ring are provided with insulating layers, and the insulating layers of the first ring and the second ring are provided with electro-conductive sections; and the workbench is internally provided with a control structure for controlling the positioning plate to move downwards, and the first ring and the second ring are located in a circuit of the control structure. The straight seam automatic welding device canachieve automatic aligning during welding, and manual operation is reduced.
Owner:CHONGQING SHANGZE ELECTROMECHANICAL
Liquid-cooled permanent magnet coupler
InactiveCN104052239ANot easy to demagnetizeReduce noiseDynamo-electric gearsCooling/ventillation arrangementMagnetic disksMagnet
The invention provides a liquid-cooled permanent magnet coupler. The liquid-cooled permanent magnet coupler comprises two groups of magnetic disks which are arranged oppositely. Conductive disks are compressed tightly on the opposite surfaces of the magnetic disks through a mould pressing technology. The surfaces, close to the magnetic disks, of the conductive disks are provided with cooling liquid flow channels, liquid grooves, liquid inlet holes and liquid outlet holes are formed in the magnetic disks, the liquid grooves are communicated with the liquid inlet holes, cooling liquid enters the liquid inlet holes under the effect of centrifugal force after entering the liquid grooves though a cooling oil pipe, and the liquid inlet holes and the liquid outlet holes are communicated with the cooling liquid flow channels. Through the liquid-cooled permanent magnet coupler, heat generated on the conductive disks by eddy currents can be taken away timely, the temperature of the conductive disks and the temperature of the magnetic disks can be controlled to be at a low degree, and magnets are not prone to demagnetization. Thus, noise generated when equipment runs is reduced.
Owner:SUZHOU SIFURUI ENERGY SAVING TRANSMISSION TECH
Float-type liquidometer with vernier display function
InactiveCN105091986ASimple structureReduce weightLevel indicators by floatsMagnetic tension forceMagnetic poles
The invention relates to a float-type liquidometer with the vernier display function. The float-type liquidometer comprises a float chamber, a float inside the float chamber, a vernier outside the float chamber, a guide rail and a dividing rule. The vernier is a piece of disc-shaped or cylindrical magnetic steel, the axis of the vernier is parallel to the ground, and the magnetic poles of the vernier are located in the direction of the central axis. Under the magnetic action between the floater and the vernier, the circumferential surface of the vernier makes rolling contact with the outer wall of the float chamber. The guide rail comprises two parallel tracks perpendicular to the ground. The tracks are oppositely arranged on the outer sides of the two axial end faces of the vernier and attached to the end faces of the vernier so that the vernier can roll up and down along the outer wall of the float chamber between the tracks under the magnetic action. The float-type liquidometer with the vernier display function is further provided with a closed vernier chamber adjacent to the float chamber. The liquidometer has the advantages of being simple in structure, reliable to use, convenient to maintain, low in manufacturing cost and wide in application range.
Owner:DALIAN CONSERVATION SCI & TECH CO LTD
Hybrid stepping motor with U-shaped permanent magnets embedded into stator
ActiveCN107769510AIncrease profitIncrease magnetic fluxMagnetic circuit stationary partsPhysicsSmall teeth
Owner:CHANGZHOU DINGS ELECTRICAL & MECHANICAL
Amphibious high-current switch
InactiveCN110957163AImprove sealingExtended service lifeMagnetic/electric field switchesEngineeringCurrent switch
The invention discloses an amphibious high-current switch, which comprises a contact base (1), a switch shell (2), a switch knob (3) and a switch turncap (4), and is characterized in that: a separatedswitch contact (11) is arranged at the bottom of the contact base (1), and an integrated switch contact (5), a magnet seat (6), two permanent magnets (61) and a contact seat upper cover (7) are arranged in the contact base (1); the contact base (1) is arranged at the bottom of the switch shell (2); the switch shell (2) is also provided with a sealing ring (21); and the switch knob (3) is fixed inside the upper end of the switch shell (2) through the switch turncap (4), and the bottom of the switch knob (3) is also provided with a magnet seat (31) and four permanent magnets (311). The structure is statically sealed only by an O-shaped ring, and pressure compensation is designed, so that the closing and opening of the switch are not influenced by water depth, and the use is safe and reliable; the permanent magnet in the switch is not easy to demagnetize, and the service life is long; and moreover, the switch is not easily interfered by an external magnetic field, has a state maintainingcapability, and can directly pass through a large current.
Owner:750 TEST SITE OF CHINA SHIPBUILDING IND CORP
Current transformer magnetic material
The invention discloses a current transformer magnetic material, which is prepared from the following raw materials in parts by weight: 5 to 9 parts of graphene, 15 to 18 parts of epoxy resin, 3 to 7 parts of iron trioxide, 9 to 12 parts of modified clay, 10 to 15 parts of polyacrylic ester resin, 2 to 5 parts of lubricating agents, 5 to 8 parts of glycerol, 3 to 6 parts of poly(arylene ether nitrile), 2 to 4 parts of manganese oxide, 1 to 5 parts of cobaltic oxide and 6 to 9 parts of carbonic acid materials. The current transformer magnetic material has the advantages that high elasticity, high tensility and good high-temperature-resistant performance are realized; the magnetism is enhanced; the demagnetizing cannot easily occur; more importantly, good energy-saving and environment-friendly effects are achieved, and the like.
Owner:安徽华能集团电器有限公司
Permanent magnet and manufacturing method thereof
InactiveCN103667872AQuality improvementNot easy to demagnetizeMagnetic materialsIron powderPermalloy
A permanent magnet comprises: 20-50 parts of iron powder, 15-20 parts of permalloy powder, 5-10 parts of mild steel powder, 2-6 parts of cemented carbide powder, 12-19 parts of aluminium magnesium alloy powder, and 1-3 parts of metal zirconium powder. The manufacture method comprises: uniformly mixing the iron powder, the permalloy powder, the mild steel powder, the cemented carbide powder, the aluminium magnesium alloy powder, and the metal zirconium powder, and placing the mixture in a mould with a set shape; implementing orientation regulation of the alloy powder by applying an alternating magnetic field with a constant amplitude and 50Hz of frequency on the outer side of the mould, and slightly shocking the mould while regulation to help the powder to turn; and carrying out compression moulding. The permanent magnet provided by the method has advantages of good quality, and not easy demagnetization and failure, and can better guarantee production and life.
Owner:苏永龙
Tumor magnetic field restraining and treating device
InactiveCN110339482AStable rotationStrong magnetismElectrotherapyInductances/transformers/magnets manufactureAbnormal tissue growthDrive motor
The invention discloses a tumor magnetic field restraining and treating device. The tumor magnetic field restraining and treating device comprises a treating bed, a housing arranged at a bed head position of the treating bed, a driving motor arranged in the housing and a permanent magnet, wherein the permanent magnet is arranged on the right side of the driving motor, in the housing, and is cylindrical; a rotating shaft is arranged at a cylindrical shaft center of the permanent magnet; a shaft hole which cooperates with the rotating shaft is formed in one end of the inner part of the housing;the driving motor is fixedly connected with one end relative to the shaft hole, of the housing; and the cross section of the housing adopts a rounded rectangular cylindrical structure. The tumor magnetic field restraining and treating device disclosed by the invention is simple in structure and stable in operation; besides, a patient can receive magnetotherapy on the bed, and the using is convenient; and the permanent magnet is manufactured by high-performance neodymium- iron- boron materials, so that the tumor magnetic field restraining and treating device has excellent magnetic performance and favorable mechanical characteristics, and is notable in magnetotherapy effects.
Owner:QINGDAO TUMOR HOSPITAL
Efficient tricycle driving system
ActiveCN112087083AHigh positioning accuracyCompact structureCyclesAssociation with control/drive circuitsElectric machineControl theory
The invention discloses an efficient tricycle driving system which comprises a motor on a tricycle frame and a driver used for controlling the motor to drive and operate, the motor adopts a salient pole permanent magnet synchronous motor beneficial to flux weakening control and comprises a stator assembly and a rotor assembly which are in electromagnetic induction connection, and the stator assembly comprises a stator iron core and a winding. The rotor assembly comprises a rotor iron core and permanent magnet steel. The speed regulation range of the salient pole permanent magnet synchronous motor is improved through flux weakening control of the salient-pole permanent magnet synchronous motor, and meanwhile, the torque of the salient pole permanent magnet synchronous motor is improved by increasing the number of turns of a coil of a single winding; and the invention has the advantages of wide speed regulation range, compact structure, light weight, high position precision, large torqueand the like.
Owner:WUXI SINE POWER TECH CO LTD
Hybrid stepping motor with stator embedded with strip-shaped permanent magnets
InactiveCN112054611ASimple structureReduce difficultyMagnetic circuit rotating partsMagnetic circuit stationary partsPole pieceElectric machine
The invention relates to a hybrid stepping motor with a stator embedded with strip-shaped permanent magnets, which comprises a rotor, a rotor iron core and a rotor rotating shaft, and the rotor overlays the rotor iron core, the rotor rotating shaft is arranged in the rotor iron core, and gears are uniformly distributed on the outer circumference of the rotor; the stator comprises a stator iron core, a stator winding, a permanent magnet and a casing, wherein magnetic poles are distributed at the inner periphery of the stator core, small teeth with the same tooth pitch as a gear on the rotor areuniformly distributed on a pole shoe of each magnetic pole, and a pole body of each magnetic pole is provided with a phase stator winding; the permanent magnet grooves are formed in the yoke part ofthe stator core and are used for placing the strip-shaped permanent magnets; and the permanent magnets are arranged at intervals of one magnetic pole and are arranged alternately according to a certain sequence.
Owner:常州铁道高等职业技术学校
Float type liquid level gauge with vernier display
ActiveCN105277258BSimple structureOvercoming the difficulty of reading numerical valuesLevel indicators by floatsCouplingMagnetic poles
The invention relates to a ball float type liquidometer with vernier display. The ball float type liquidometer comprises a ball float chamber and a ferromagnetic spherical floating ball arranged therein, a vernier outside the ball float chamber, a calibrated scale and a vernier guide rail. The vernier comprises magnetic steel, a frame and a rolling system which is horizontally fixed and sleeved in the frame; the rolling system comprises rolling wheels which are provided with radial grooves along a circumferential surface, rolling bearings and shafts; the magnetic steel is disposed between the ball float chamber and the frame and is fixed outside one side surface close to the ball float chamber on the frame, and the magnetic pole of the magnetic steel is right oriented towards the floating ball; the vernier guide rail is sleeved in the frame and is disposed between the magnetic steel and the rolling system; and the rolling system enables the rolling wheels to roll vertically along the vernier guide rail at groove positions through a magnetic coupling force between the magnetic steel and the floating ball. The ball float type liquidometer is simple and scientific in structure, reliable in application performance, easy to manufacture and low in cost, reduces defects in the prior art and effectively meets needs in correlation fields.
Owner:DALIAN JIAXIN ELECTROMECHANICAL INSTR CO TD
Preparation method of high temperature resistance radiation orientation or multi-pole orientation neodymium iron boron annular magnet
InactiveCN108133820AImprove intrinsic coercive forceNot easy to demagnetizeMagnetic materialsPermanent magnet manufactureRare-earth elementTemperature resistance
The embodiment of the invention discloses a preparation method for a high temperature resistance radiation orientation or multi-pole orientation neodymium iron boron annular magnet. The method comprises the following steps that the surface of the radiation orientation or multi-pole orientation neodymium iron boron annular magnet is coated with a coating material containing heavy rare earth elements, and heavy rare earth element treatment is performed on the coated neodymium iron boron annular magnet; then, aging treatment is performed; gas quenching treatment is performed on the neodymium ironboron annular magnet obtained after aging treatment; then anti-oxidation treatment is performed on the surface, and the high temperature resistance radiation orientation or multi-pole orientation neodymium iron boron annular magnet is obtained. According to the method, the surface of the neodymium iron boron annular magnet is coated with heavy rare earth elements, permeation treatment is performed, the heavy rare earth elements can permeate the crystal boundary of the neodymium iron boron annular magnet, the intrinsic coercive force of the radiation orientation or multi-pole orientation neodymium iron boron annular magnet is improved, the neodymium iron boron annular magnet is not likely to be demagnetized under the high temperature, and the high temperature resistance of the radiation orientation or multi-pole orientation neodymium iron boron annular magnet is improved.
Owner:GANZHOU NEW RADIAL MAGNETICS CO LTD GANZHOU CITY
Eye brightening device and energy bar matched with eye brightening device
InactiveCN104107508AImprove eyesightSimple structureElectrotherapyDevices for pressing relfex pointsNoseEngineering
The invention relates to an eye brightening device comprising a spectacle frame, wherein spectacle legs are arranged at two ends of the spectacle frame; round holes are formed in the spectacle frame; nose pads are arranged between the round holes; a regulating caliper is arranged at the middle part of the spectacle frame; a rotary knob for regulating a focal distance is also arranged on the regulating caliper; a magnetic core is arranged on the inner part of each round hole; each magnetic core is cylindrical; a permanent magnet is arranged on the inner part of each magnetic core; screw threads are arranged on the outer surface of each magnetic core; the magnetic cores are fixedly arranged in the round holes by virtue of two tightening and fixing rings; an inwards-sunken eye hole is formed in the rear end of each magnetic core; and the front end of each magnetic core is a plane. The eye brightening device disclosed by the invention has the beneficial effects that the eye brightening device is simple in structure, is convenient and fast to use, can be used for effectively improving the eyesight of eyes, and has a plurality of advantages of high magnetic property, difficulty in demagnetization, simplicity in operation and firmness and durability.
Owner:田成伟
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