CN104300754B - Simple-structure magnetic powder cast double-side rotor motor - Google Patents
Simple-structure magnetic powder cast double-side rotor motor Download PDFInfo
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- CN104300754B CN104300754B CN201410546835.7A CN201410546835A CN104300754B CN 104300754 B CN104300754 B CN 104300754B CN 201410546835 A CN201410546835 A CN 201410546835A CN 104300754 B CN104300754 B CN 104300754B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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Abstract
The invention provides a simple-structure magnetic powder cast double-side rotor motor. The simple-structure magnetic powder cast double-side rotor motor comprises a stator, rotors, a rotating shaft, bearings and a Hall element. The stator is composed of an upper magnetic pole, a lower magnetic pole, a coil rack and a stator winding, and the two ends of the stator are provided with more than two protruding asymmetric magnetic poles. The upper magnetic pole and the lower magnetic pole are fixed to the coil rack. The upper magnetic pole and the lower magnetic pole are of the same structure and are both integrated pieces formed by die-casting composite nanocrystalline. One coil is arranged and wound around the coil rack. The two rotors are arranged at the two ends of the stator. Each rotor is composed of a base body and a permanent magnet. The two bearings are fixedly installed on the upper magnetic pole and the lower magnetic pole of the stator respectively. The Hall element is arranged on the upper magnetic pole or the lower magnetic pole of the stator. The rotating shaft is connected with the two rotors and the two bearings in an interference fit mode. The structure and a driving circuit of the simple-structure magnetic powder cast double-side rotor motor are simple, the direction of the magnetic field is the axial direction, the magnetic pole utilization rate is high, the working reliability is high, much labor cost can be saved, and a special motor can be made conveniently with the motor.
Description
The application is Application No. 201210420753.9, filing date on October 29th, 2012, and invention and created name is the divisional application of the application for a patent for invention of " magnetic powder casting mold mold bilateral rotor motor ".
Technical field
The present invention relates to alternating current generator technical field, particularly to the permanent magnet AC motor of the double-sided rotors structure of magnetic powder casting mold.
Background technology
Alternating current generator includes stator and rotor.At present, the stator of AC magnetoelectric machine the most all uses stalloy to build up structure, and its structure can not use die casting mode molding；The magnetic pole of rotor mostly is permanent magnetic steel；Next pole pair of ordinary circumstance answers a coil windings, a usual motor to have 3 or more than 3 winding coils, needs to use substantial amounts of copper and ferrum, relatively costly；Meanwhile, having several winding to be accomplished by several full bridge driving circuit, drive circuit is relative complex；During motor manufacturing, operation is more, installs more complicated, wastes time and energy；The structure of rotor generally uses internal rotor or outer-rotor structure, and magnetic direction is radially, because structure limits, it is difficult to make such as elongated special type motor；Operationally, coil windings, by certain sequential increase control signal, is disadvantageous in that magnetic pole does not has electric current to flow through sometimes to current magneto, and magnetic pole utilization rate is the highest.
Summary of the invention
It is an object of the invention to: overcome deficiency of the prior art, there is provided the magnetic pole of the stator of a kind of composite nanocrystalline die cast, on soft iron material matrix the rotor of the permanent magnetic ring of bonded neodymium-iron-boron material, only set a winding, the motor of magnetic powder casting mold double-sided rotors structure at stator two ends is located at by two rotors, this motor is relatively easy than conventional permanent magnet motor structure, it is easy to manufacture and assemble, saves material and human cost.
The technical scheme is that the magnetic powder casting mold mold bilateral rotor motor of the simple in construction of the present invention, including stator, rotor, rotating shaft, bearing and Hall element, above-mentioned bearing includes upside bearing and lower side bearing, and it is structurally characterized in that: above-mentioned stator includes magnetic pole, lower magnetic pole, winding frame and stator winding；The center of upper magnetic pole is provided with the axis hole of upward and downward；Upper magnetic pole is identical with lower magnetic pole structure, all for the brilliant or integral piece of composite nanocrystalline die cast by composite magnetic powder；Rotor includes upside rotor and the downside rotor that structure is identical；Upside rotor includes matrix and the permanent magnetism magnetic pole being fixedly mounted on matrix；The center of the matrix of upside rotor is provided with the axis hole of upward and downward；Rotating shaft is steel strip rod-shaped cylindrical body part；
Above-mentioned upside bearing is fixedly mounted on the upper magnetic pole of stator, and lower side bearing is fixedly mounted on the lower magnetic pole of stator；Hall element is fixedly mounted on upper magnetic pole or the lower magnetic pole of stator；The upper magnetic pole of stator and lower magnetic pole are fixedly mounted on winding frame, and stator winding is wrapped on winding frame；
Above-mentioned upside rotor is oppositely arranged with the upper magnetic pole of stator by its permanent magnetism magnetic pole, downside rotor is oppositely arranged with the lower magnetic pole of its permanent magnetism magnetic pole Yu stator and upside rotor the most corresponding with the S pole of the permanent magnetism magnetic pole of downside rotor respectively with the N pole of its permanent magnetism magnetic pole in the way of be arranged on the two ends up and down of stator；
Above-mentioned rotating shaft sequentially passes through the upside axis hole of rotor, upside bearing, the axis hole of upper magnetic pole, the axis hole of lower magnetic pole, lower side bearing and the axis hole of downside rotor from top to bottom；Rotating shaft is connected so that interference fit is fixing with rotor and bearing；
The upper magnetic pole of above-mentioned stator includes all-in-one-piece magnetic core and the asymmetric magnetic pole of projection；Magnetic core includes the superposed oblate trunk portion of all-in-one-piece and is positioned at the cylinder body of bottom；The center of oblate trunk portion is provided with axle bearing mount portion；Above-mentioned axis hole is arranged on the axis of magnetic core and its internal diameter is more bigger than the external diameter of rotating shaft；Protruding asymmetric magnetic pole at least provided with more than 2, on the neighboring, upper end of the oblate trunk portion that protruding asymmetric magnetic pole is uniformly set at magnetic core.
The material of the matrix of the upside rotor of above-mentioned rotor is electrician's soft iron；Matrix be shaped as oblate cylinder；Its diameter is suitable with the diameter of the oblate trunk portion of the magnetic core of the upper magnetic pole of stator；The permanent magnetism magnetic pole of above-mentioned upside rotor is the many magnetic poles permanent magnetic ring made with neodymium iron boron；Magnet ring glueds joint with matrix；The most alternate N pole and S pole permanent magnetism magnetic pole it is provided with, the N pole permanent magnetism magnetic pole on magnet ring and 2 times of the asymmetric pole number of projection of the upper magnetic pole that number sum is stator of S pole permanent magnetism magnetic pole on magnet ring；
The winding frame of above-mentioned stator is plastics integral piece；Winding frame includes annular portion, lower annular portion and cylinder body；Upper annular portion is identical with the shape and structure of lower annular portion；Cylinder body is the cylinder of hollow, and its internal diameter matches with the external diameter of the cylinder body of the magnetic core of the upper magnetic pole of stator；Its upper and lower height approximates 2 times of the upward and downward height of the cylinder body of the magnetic core of magnetic pole；Upper annular portion is identical with the internal diameter of cylinder body with the internal diameter of the through hole in the middle of lower annular portion；Upper annular portion and lower annular portion are linked into an integrated entity by the cylinder body of winding frame；
The upper magnetic pole of above-mentioned stator is inserted in the cylinder body of winding frame from the top down by the cylinder body of its magnetic core；Lower magnetic pole is inserted in the cylinder body of winding frame from bottom to top by the cylinder body of its magnetic core；Upper magnetic pole and lower magnetic pole are in close contact in the cylinder body of winding frame, and the asymmetric magnetic pole of projection of the asymmetric magnetic pole of projection of upper magnetic pole and lower magnetic pole is the most symmetrical；Upper magnetic pole and lower magnetic pole are solidified as a whole after dipping lacquer processes with winding frame.
The present invention has a positive effect: the magnetic pole of the stator composite nanocrystalline die cast of the magnetic powder casting mold mold bilateral rotor motor of the simple in construction of (1) present invention, composite nanocrystalline is distributed more widely in nature, cost is less than stalloy, composite nanocrystalline magnetic property is higher than stalloy, magnetic resistance is more than stalloy, and performance is better than stalloy；Replacing stalloy with composite nanocrystalline, the motor of equal-wattage can save the resource such as ferrum and copper in a large number, reduces the material cost of motor.(2) the magnetic powder casting mold mold bilateral rotor motor motor of the simple in construction of the present invention is provided only with a winding coil, and bobbin also plays a part to install magnetic pole of the stator, is beneficial to manufacture and install；Magnetic direction is axially, and magnetic pole utilization rate is high, it is only necessary to a full bridge driving circuit simplifies, and reduces the manufacturing cost of motor further, and the reliability of motor is improved.(3) present invention is by the improvement in structure, can manufacture the special type motors such as the less elongated motor of rotary inertia and Ultra-thin electric machine, meet some special requirements.(4) motor of the present invention is relatively easy than conventional permanent magnet motor structure, it is easy to manufactures and assembles, and can more save human cost.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the motor of the present invention；
Fig. 2 is the structural representation of the upper magnetic pole of the stator in Fig. 1, and in figure, dash area is protruding asymmetric magnetic pole；Figure also show the Hall element being arranged on stator；
Fig. 3 is that the A-A of Fig. 2 is to sectional view；
Fig. 4 is the structural representation of the lower magnetic pole of the stator in Fig. 1；In figure, dash area is protruding asymmetric magnetic pole；Together with Fig. 4 with Fig. 2, also show the corresponding relation when mounted of the asymmetric magnetic pole of projection on the upper magnetic pole of stator and lower magnetic pole；
Fig. 5 is that the B-B of 4 is to sectional view；
Fig. 6 is two rotors and rotating shaft annexation schematic diagram；
Fig. 7 is the C direction view of Fig. 6；
Fig. 8 is the D direction view of Fig. 6；Together with Fig. 8 with Fig. 7, it is shown that the position corresponding relation of permanent magnetism magnetic pole on two rotors during installation；
Fig. 9 is the schematic block circuit diagram driving controller of motor shown in Fig. 1；
Figure 10 is the control waveform diagram that employing PWM mode controls the operating current of motor shown in Fig. 1；
Figure 11 a～11f is the operation principle schematic diagram of motor shown in Fig. 1.
Reference in above-mentioned accompanying drawing is as follows:
Stator 1, upper magnetic pole 11, magnetic core 11-1, oblate trunk portion 11-1-1, cylinder body 11-1-2, axis hole 11-1-3, protruding asymmetric magnetic pole 11-2, lower magnetic pole 12, magnetic core 12-1, oblate trunk portion 12-1-1, cylinder body 12-1-2, axis hole 12-1-3, protruding asymmetric magnetic pole 12-2, winding frame 13, upper annular portion 13-1, lower annular portion 13-2, cylinder body 13-3, stator winding 14
Rotor 2, upside rotor 21, matrix 21-1, magnet ring 21-2, axis hole 21-3, downside rotor 22, matrix 22-1, magnet ring 22-2, axis hole 21-3,
Rotating shaft 3,
Bearing 4, upside bearing 41, lower side bearing 42,
Hall element 5.
Detailed description of the invention
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings.
(embodiment 1)
Seeing Fig. 1, see Fig. 2, the magnetic powder casting mold mold bilateral rotor motor of the simple in construction of the present embodiment, by omitting unillustrated pedestal in stator 1, rotor 2, rotating shaft 3, bearing 4, Hall element 5 and figure and shell forms.Rotating shaft 3 is steel strip rod-shaped cylindrical body part.Bearing 4 is ball bearing.
Stator 1 is made up of upper magnetic pole 11, lower magnetic pole 12, winding frame 13 and stator winding 14.Rotor 2 is provided with 2, is distinguished as upside rotor 21 and downside rotor 22 by upper and lower position.Bearing 4 is provided with 2, is distinguished as upside bearing 41 and lower side bearing 42 by upper and lower position.
Seeing Fig. 2 and Fig. 3, the upper magnetic pole 11 of stator 1 is made up of all-in-one-piece magnetic core 11-1 and projection asymmetric magnetic pole 11-2.Magnetic core 11-1 is made up of with the cylinder body 11-1-2 being positioned at bottom superposed oblate trunk portion 11-1-1 of all-in-one-piece, and the center of oblate trunk portion 11-1-1 is provided with axle bearing mount portion；Oblate trunk portion 11-1-1 and cylinder body 11-1-2 coaxial line, axis common both it is the axis of magnetic core 11-1；The axis of magnetic core 11-1 is provided with the axis hole 11-1-3 that internal diameter is more bigger than the external diameter of rotating shaft 3；On the neighboring, upper end of oblate trunk portion 11-1-1 that the projection asymmetric magnetic pole 11-2 of upper magnetic pole 11 is arranged on magnetic core 11-1, it is connected with oblate trunk portion 11-1-1 one；The number of protruding asymmetric magnetic pole 11-2 is at least provided with more than 2, and particular number can be arranged as required to, and each projection asymmetric magnetic pole 11-2 is uniformly set on the neighboring, upper end of oblate trunk portion 11-1-1.In the present embodiment, the number of protruding asymmetric magnetic pole 11-2 is 4.Protruding asymmetric magnetic pole 11-2's is asymmetric, it is to be achieved by arranging an inclined-plane in the upper end of protruding asymmetric magnetic pole 11-2 towards a side directions, and the direction on the inclined-plane on the upper surface of each projection asymmetric magnetic pole 11-2 is consistent, its effect is to ensure that rotor rotates the most in the same direction when driving electric current commutation.
Seeing Fig. 4 and Fig. 5, the structure of the lower magnetic pole 12 of stator 1 is identical with the structure of upper magnetic pole 11.
The upper magnetic pole 11 of stator 1 and lower magnetic pole 12 are all for the integral piece by composite nanocrystalline material die cast.
Still seeing Fig. 1, the winding frame 13 of stator 1 is plastics integral piece.Winding frame 13 is made up of upper annular portion 13-1, lower annular portion 13-2 and cylinder body 13-3.Upper annular portion 13-1 is identical with the shape and structure of lower annular portion 13-2, and cylinder body 13-3 is the cylinder of hollow, and its internal diameter matches with the external diameter of the cylinder body 11-1-2 of the magnetic core 11-1 of the upper magnetic pole 11 of stator 1；Its upper and lower height approximates 2 times of the upward and downward height of the cylinder body 11-1-2 of the magnetic core 11-1 of magnetic pole 11.Upper annular portion 13-1 is identical with the internal diameter of cylinder body 13-3 with the internal diameter of the through hole in the middle of lower annular portion 13-2.Upper annular portion 13-1 and lower annular portion 13-2 are linked into an integrated entity by the cylinder body 13-3 of winding frame 13.
Form on the outer wall of the cylinder body 13-3 that stator winding 14 is wrapped in winding frame 13 by copper wire.
Upper magnetic pole 11 is inserted in the cylinder body 13-3 of winding frame 13 from the top down by the cylinder body 11-1-2 of its magnetic core 11-1；Lower magnetic pole 12 is inserted in the cylinder body 13-3 of winding frame 13 from bottom to top by the cylinder body 12-1-2 of its magnetic core 12-1；On upper magnetic pole 11 and lower magnetic pole 12 are in close contact and make in the cylinder body 13-3 of winding frame 13 after the projection asymmetric magnetic pole 11-2 of magnetic pole 11 and the projection asymmetric magnetic pole 12-2 symmetry the most one by one of lower magnetic pole 12, again upper magnetic pole 11 and lower magnetic pole 12 are carried out dipping lacquer process with winding frame 13, make magnetic pole 11 and lower magnetic pole 12 be integrally fixed with winding frame 13, thus constitute complete stator 1.
Seeing Fig. 6 to Fig. 8, the upside rotor 21 of rotor 2 is made up of matrix 21-1 and the permanent magnetism magnetic pole being fixedly mounted on matrix 21-1.In the present embodiment, many magnetic poles permanent magnetic ring 21-2 that permanent magnetism magnetic pole is preferably made with NdFeB material.The material of matrix 21-1 is electrician's soft iron；Matrix 21-1 is shaped as oblate cylinder；Its diameter is suitable with the diameter of oblate trunk portion 11-1-1 of the magnetic core 11-1 of the upper magnetic pole 11 of stator 1；The center of matrix 21-1 is provided with the manhole of the upward and downward that the external diameter of internal diameter and rotating shaft 3 adapts, as the axis hole 21-1-1 of upside rotor 21 with rotating shaft 3 socket.The most alternate N pole and the permanent magnetism magnetic pole of S pole it is provided with on magnet ring 21-2.N pole permanent magnetism magnetic pole on magnet ring 21-2 and 2 times of the projection asymmetric magnetic pole 11-2 number of the upper magnetic pole 11 that number sum is stator 1 of S pole permanent magnetism magnetic pole.In the present embodiment, the most alternate on magnet ring 21-2 it is provided with N0, N1, N2, N3 totally 4 N poles and S0, S1, S2, S3 totally 4 S pole.Magnet ring 21-2 seccotine glueds joint the periphery of lower surface being fixed on matrix 21-1, integral with matrix 21-1 is connected.
The material of the downside rotor 21 of rotor 2 is identical with upside rotor 21 with structure.
During installation, make the N pole on the magnet ring 21-2 of upside rotor 21 or S pole the most corresponding with the S pole on the magnet ring 22-2 of downside rotor 22 and N pole respectively, namely on the straight line that the same of upward and downward is parallel with the axis of rotating shaft 3, and upside rotor 21 relative with the projection asymmetric magnetic pole 12-2 of the lower magnetic pole 12 of stator 1 upward by the magnet ring 22-2 of its magnet ring 21-2, downside rotor 22 relative with the projection asymmetric magnetic pole 11-2 of the upper magnetic pole 11 of stator 1 down in the way of install.
Still see Fig. 1, on the axle bearing mount portion of oblate trunk portion 11-1-1 that the upside bearing 41 of bearing 4 is fixedly mounted on the magnetic core 11-1 of the upper magnetic pole 11 of stator 1；On the axle bearing mount portion of oblate trunk portion 12-1-1 that the lower side bearing 42 of bearing 4 is fixedly mounted on the magnetic core 12-1 of the lower magnetic pole 12 of stator 1.
Seeing Fig. 2, Hall element 5 is provided with 1, and in the present embodiment, the preferred model of Hall element 5 is the switching Hall components of BD3144.On the upper surface of oblate trunk portion 11-1-1 that Hall element 5 can be fixedly mounted on the magnetic core 11 of the upper magnetic pole 11 of stator 1；On the end face of oblate trunk portion 12-1-1 that Hall element 5 also can be fixedly mounted on the magnetic core 12-1 of the lower magnetic pole 12 of stator 1；In the present embodiment, on the upper surface of oblate trunk portion 11-1-1 that Hall element 5 is preferably fixedly mounted to the magnetic core 11 of the upper magnetic pole 11 of stator 1.Fixed form the present embodiment of Hall element 5 preferably employs seccotine and glueds joint fixing.
Still see Fig. 1, when the magnetic powder casting mold mold bilateral rotor motor of the simple in construction of the present embodiment assembles, rotating shaft 3 sequentially passes through the axis hole 22-1-1 of the matrix 22-1 of the axis hole 12-1-3 of the magnetic core 12-1 of the axis hole 11-1-3 of the magnetic core 11-1 of the upper magnetic pole 11 of the axis hole 21-1-1 of the matrix 21-1 of the upside rotor 21 of rotor 2, upside bearing 41, stator 1, lower magnetic pole 12, lower side bearing 42 and downside rotor 22 from top to bottom, rotating shaft 3 is interference fit with the fixed form of rotor 2 and bearing 4, thus is connected by each parts；Again its pedestal with motor and shell are installed and be connected thus complete the assembling of motor.
Seeing Fig. 9 and Figure 10, the driving controller of the magnetic powder casting mold mold bilateral rotor motor of the simple in construction of the present embodiment is mainly made up of power supply, microprocessor, drive circuit and power circuit.Its mode driving motor to work is: detected the position of rotor 2 by Hall element 5, electrical switch is used to commutate, because the phase place of rotor can accurately be measured, the optimal drive point of motor can be searched out by controlling the angle of flow, make motor be obtained in that the work efficiency of maximum；Its speed regulating method is by controlling driving pulse bandwidth or adding pwm signal and reach the purpose of speed governing, it is also possible to by changing Dead Time speed governing.
Seeing Figure 11 a～11f, operation principle and the process of the magnetic powder casting mold mold bilateral rotor motor of the simple in construction of the present embodiment are the most following:
See Figure 11 a, it is assumed that the A side of stator is N pole when stator winding is passed through forward current, then B side is exactly S pole, and now motor is in steady statue, between stator and the rotor of motor, there is no relative motion；
The first step, is shown in Figure 11 b, and when being passed through reverse current, the A side of stator becomes S pole, and B side becomes N pole, and now, magnetic pole of the stator polarity is identical with rotor permanent magnet magnet ring polarity, will produce repulsion；Local repulsion close to rotor is big, and at this moment rotor is by the active force in a direction as indicated with an arrow, and rotor will rotate along the direction of arrow；During rotating, the adjacent opposite pole (A side N1, B side S1) on rotor attracts mutually with magnetic pole of the stator, and one pushes away, and one is drawn, and accelerates rotor and arrives position shown in Figure 11 c；
Second step, the position signalling that motor drive controller is sent according to Hall element judges the position that rotor is arrived, and before rotor will arrive position shown in Figure 11 c, cuts off reverse current, through one section of Dead Time, rotor stably arrives Figure 11 c position under effect of inertia；Adding forward current again, at this moment the A side magnetic pole of stator becomes N pole, and B side magnetic pole becomes S pole, as illustrated in fig. 11d；All identical with rotor magnetic ring polarity, produce repulsion drive rotor and rotate to the direction of arrow reducing repulsion, during rotating, adjacent opposite pole (A side N2, B side S2) on rotor attracts mutually with magnetic pole of the stator, and one pushes away, one is drawn, and accelerates rotor and arrives position shown in Figure 11 e；
3rd step, changes the sense of current again, and rotor will continue on the direction of arrow and rotate；By stator winding alternately adds forward and reverse electric current, stator converts the polarity of both sides magnetic pole accordingly, and rotor is rotated continuously by unidirectional power all the time；Through 8 forward and reverse electric currents, motor rotates a circle.
(embodiment 2)
Magnetic powder other aspects of casting mold mold bilateral rotor motor of the simple in construction of the present embodiment are same as in Example 1, difference is: the permanent magnetism magnetic pole of the upside rotor 21 of rotor 2 is permanent-magnet magnetic steel column, and the number of permanent-magnet magnetic steel column is 2 times of the projection asymmetric magnetic pole 11-2 number of the upper magnetic pole 11 of stator 1.Permanent-magnet magnetic steel column includes N pole permanent-magnet magnetic steel column and S pole permanent-magnet magnetic steel column；The surrounding of the lower surface of the matrix 21-1 of upside rotor 21 is uniformly provided with the magnetic pole installing hole identical with the number of permanent-magnet magnetic steel column, and the magnetic polarity of each permanent-magnet magnetic steel column permanent-magnet magnetic steel column that relative set is in the magnetic pole installing hole of matrix 21-1 and adjacent respectively is contrary；Namely each permanent-magnet magnetic steel column is arranged according to N pole, mode the most alternate for S in other words,.Each permanent-magnet magnetic steel column lower surface concordant with the lower surface of upside rotor 21.Each permanent-magnet magnetic steel column can use splicing fixing with the secure fit mode of the magnetic pole installing hole of matrix 21-1, it would however also be possible to employ interference fit is fixed.The structure of the downside rotor 22 of rotor 2 is identical with the structure of upside rotor 21.
Above example is the explanation of the detailed description of the invention to the present invention; rather than limitation of the present invention; person skilled in the relevant technique is without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain the technical scheme of corresponding equivalent, the technical scheme of the most all equivalents all should be included into the scope of patent protection of the present invention.
Claims (1)
1. the magnetic powder casting mold mold bilateral rotor motor of a simple in construction, including stator (1), rotor (2), rotating shaft (3), bearing (4) and Hall element (5), described bearing (4) includes upside bearing (41) and lower side bearing (42), it is characterised in that: described stator (1) includes magnetic pole (11), lower magnetic pole (12), winding frame (13) and stator winding (14)；The center of upper magnetic pole (11) is provided with the axis hole (11-1-3) of upward and downward；Upper magnetic pole (11) is identical with lower magnetic pole (12) structure, all for the integral piece by composite nanocrystalline die cast；Rotor (2) includes upside rotor (21) and the downside rotor (22) that structure is identical；Upside rotor (21) includes matrix (21-1) and the permanent magnetism magnetic pole being fixedly mounted on matrix (21-1)；The center of the matrix (21-1) of upside rotor (21) is provided with the axis hole (21-1-1) of upward and downward；Rotating shaft (3) is steel strip rod-shaped cylindrical body part；
Described upside bearing (41) is fixedly mounted on the upper magnetic pole (11) of stator (1), and lower side bearing (42) is fixedly mounted on the lower magnetic pole (12) of stator (1)；Hall element (5) is fixedly mounted on upper magnetic pole (11) or the lower magnetic pole (12) of stator (1)；The upper magnetic pole (11) of stator (1) and lower magnetic pole (12) are fixedly mounted on winding frame (13), and stator winding (14) is wrapped on winding frame (13)；
Described upside rotor (21) is oppositely arranged with the upper magnetic pole (11) of stator (1) by its permanent magnetism magnetic pole, downside rotor (22) is oppositely arranged with the lower magnetic pole (12) of its permanent magnetism magnetic pole Yu stator (1) and upside rotor (21) the most corresponding with the S pole of the permanent magnetism magnetic pole of downside rotor (22) respectively with the N pole of its permanent magnetism magnetic pole in the way of be arranged on the two ends up and down of stator (1)；
Described rotating shaft (3) sequentially passes through axis hole (21-1-1), upside bearing (41), the axis hole (11-1-3) of upper magnetic pole (11), the axis hole of lower magnetic pole (12), lower side bearing (42) and the axis hole of downside rotor (22) of upside rotor (21) from top to bottom；Rotating shaft (3) is connected so that interference fit is fixing with rotor (2) and bearing (4)；
The upper magnetic pole (11) of described stator (1) includes all-in-one-piece magnetic core (11-1) and the asymmetric magnetic pole of projection (11-2)；Magnetic core (11-1) includes the superposed oblate trunk portion of all-in-one-piece (11-1-1) and is positioned at the cylinder body (11-1-2) of bottom；The center of oblate trunk portion (11-1-1) is provided with axle bearing mount portion；The axis hole (11-1-3) of described upper magnetic pole (11) is arranged on the axis of magnetic core (11-1) and its internal diameter is more bigger than the external diameter of rotating shaft (3)；Protruding asymmetric magnetic pole (11-2) arranges more than 2, and protruding asymmetric magnetic pole (11-2) is uniformly set on the neighboring, upper end of oblate trunk portion (11-1-1) of magnetic core (11-1)；
The material of the matrix (21-1) of the upside rotor (21) of described rotor (2) is electrician's soft iron；Matrix (21-1) be shaped as oblate cylinder；Its diameter is suitable with the diameter of the oblate trunk portion (11-1-1) of the magnetic core (11-1) of the upper magnetic pole (11) of stator (1)；The permanent magnetism magnetic pole of described upside rotor (21) is the many magnetic poles permanent magnetic ring (21-2) made with neodymium iron boron；Magnet ring (21-2) glueds joint with matrix (21-1)；The most alternate N pole and S pole permanent magnetism magnetic pole it is provided with, the N pole permanent magnetism magnetic pole on magnet ring (21-2) and 2 times of projection asymmetric magnetic pole (11-2) number of the upper magnetic pole (11) that number sum is stator (1) of S pole permanent magnetism magnetic pole on magnet ring (21-2)；
The winding frame (13) of described stator (1) is plastics integral piece；Winding frame (13) includes annular portion (13-1), lower annular portion (13-2) and cylinder body (13-3)；Upper annular portion (13-1) is identical with the shape and structure of lower annular portion (13-2)；Cylinder body (13-3) is the cylinder of hollow, and its internal diameter matches with the external diameter of the cylinder body (11-1-2) of the magnetic core (11-1) of the upper magnetic pole (11) of stator (1)；Its upper and lower height approximates 2 times of the upward and downward height of the cylinder body (11-1-2) of the magnetic core (11-1) of magnetic pole (11)；Upper annular portion (13-1) is identical with the internal diameter of cylinder body (13-3) with the internal diameter of the through hole in the middle of lower annular portion (13-2)；Upper annular portion (13-1) and lower annular portion (13-2) are linked into an integrated entity by the cylinder body (13-3) of winding frame (13)；
The upper magnetic pole (11) of described stator (1) is inserted from the top down by the cylinder body (11-1-2) of its magnetic core (11-1) in the cylinder body (13-3) of winding frame (13)；Lower magnetic pole (12) is inserted from bottom to top by the cylinder body of its magnetic core in the cylinder body (13-3) of winding frame (13)；Upper magnetic pole (11) and lower magnetic pole (12) are in close contact in the cylinder body (13-3) of winding frame (13), and the asymmetric magnetic pole of projection of the asymmetric magnetic pole of the projection (11-2) of upper magnetic pole (11) and lower magnetic pole (12) is the most symmetrical；Upper magnetic pole (11) and lower magnetic pole (12) are solidified as a whole after dipping lacquer processes with winding frame (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546835.7A CN104300754B (en) | 2012-10-29 | 2012-10-29 | Simple-structure magnetic powder cast double-side rotor motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210420753.9A CN102969851B (en) | 2012-10-29 | 2012-10-29 | Magnetic powder casting mold bilateral rotor motor |
| CN201410546835.7A CN104300754B (en) | 2012-10-29 | 2012-10-29 | Simple-structure magnetic powder cast double-side rotor motor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210420753.9A Division CN102969851B (en) | 2012-10-29 | 2012-10-29 | Magnetic powder casting mold bilateral rotor motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300754A CN104300754A (en) | 2015-01-21 |
| CN104300754B true CN104300754B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410546835.7A Expired - Fee Related CN104300754B (en) | 2012-10-29 | 2012-10-29 | Simple-structure magnetic powder cast double-side rotor motor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105024521B (en) * | 2015-08-21 | 2018-02-02 | 常州工学院 | A kind of rotary magnetic power propeller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984709A (en) * | 1974-02-25 | 1976-10-05 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Miniature electric motor |
| CN1216173A (en) * | 1997-01-24 | 1999-05-05 | 早坂茂昭 | Dynamo-electric machine and generator and motor wherein the machine is used |
| CN101183821A (en) * | 2006-11-16 | 2008-05-21 | 富士通将军股份有限公司 | Axial air gap type electric motor |
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2012
- 2012-10-29 CN CN201410546835.7A patent/CN104300754B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3984709A (en) * | 1974-02-25 | 1976-10-05 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Miniature electric motor |
| CN1216173A (en) * | 1997-01-24 | 1999-05-05 | 早坂茂昭 | Dynamo-electric machine and generator and motor wherein the machine is used |
| CN101183821A (en) * | 2006-11-16 | 2008-05-21 | 富士通将军股份有限公司 | Axial air gap type electric motor |
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| CN104300754A (en) | 2015-01-21 |
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