WO2016004823A1 - Stator, moteur sans balai à courant continu, moteur à réluctance de commutateur triphasé et moteur à bague de déphasage - Google Patents

Stator, moteur sans balai à courant continu, moteur à réluctance de commutateur triphasé et moteur à bague de déphasage Download PDF

Info

Publication number
WO2016004823A1
WO2016004823A1 PCT/CN2015/082402 CN2015082402W WO2016004823A1 WO 2016004823 A1 WO2016004823 A1 WO 2016004823A1 CN 2015082402 W CN2015082402 W CN 2015082402W WO 2016004823 A1 WO2016004823 A1 WO 2016004823A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
rotor
phase winding
small
phase
Prior art date
Application number
PCT/CN2015/082402
Other languages
English (en)
Chinese (zh)
Inventor
顾明
Original Assignee
顾明
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201410326346.0A external-priority patent/CN104079136A/zh
Priority claimed from CN201410326323.XA external-priority patent/CN104079137A/zh
Priority claimed from CN201410326325.9A external-priority patent/CN104092345A/zh
Priority claimed from CN201410326324.4A external-priority patent/CN104079085A/zh
Application filed by 顾明 filed Critical 顾明
Publication of WO2016004823A1 publication Critical patent/WO2016004823A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors

Definitions

  • the invention relates to the field of electric machines, in particular to a stator and a brushless DC motor, a three-phase switched reluctance motor and a shaded pole motor.
  • stator and rotor windings including single and double stacked windings, concentric distributed windings, distributed slots on fractional slots, or the shape of the rotor core is sinusoidal, in order to make the air gap potential wave It is sinusoidal.
  • the invention provides a stator, wherein the stator is changed in shape of the stator core, the pole pitch is shortened and the total magnetic density of one pole is constant, and the air gap of the three-tooth pole arc surface is similar to a sinusoidal distribution, thereby When the motor is running, a circular rotating magnetic field is generated, which reduces the pulsation phenomenon of the motor and makes the motor start smoothly.
  • the invention discloses a stator comprising a large tooth and a small tooth, wherein the large tooth and the small tooth cycle are alternately arranged, and an arc distance between a center line of the adjacent large tooth body and a center line of the small tooth body Similarly, a plurality of slots are associated between the large teeth and the small teeth, and the coils are embedded in the slots to form the core of each phase winding. They are composed of small teeth, large teeth and small teeth, which are arranged in order. There is a common small tooth between each phase winding and its adjacent winding. The tooth surface of the large tooth changes according to the sine law, between the large tooth and the rotor.
  • the large-tooth arc surface air gap is a sinusoidal gradation air gap with small middle and large ends, and the air gap of the small tooth arc surface between the small teeth and the rotor is a uniform air gap and is larger than the air gap at the two ends of the large tooth arc gap.
  • the pole-arc air gap of each phase winding is similar to the sinusoidal distribution.
  • the invention discloses a stator comprising a large tooth and a small tooth, wherein the large tooth and the small tooth cycle are alternately arranged, and an arc distance between a center line of the adjacent large tooth body and a center line of the small tooth body Similarly, a plurality of slots are associated between the large teeth and the small teeth, and the coils are embedded in the slots, so that the iron cores of each phase winding are respectively arranged by small teeth, large teeth and small teeth.
  • the tooth top arc surface of the large tooth is left and right symmetrically chamfered, and the large tooth arc surface air gap between the large tooth and the rotor is small in the middle and large in both ends.
  • the air gap, the small tooth arc gap between the small teeth and the rotor is a uniform air gap and is larger than the air gap at the two ends of the large tooth arc gap.
  • the pole air gap of each phase winding is similar to the sinusoidal distribution.
  • the invention discloses a stator comprising a large tooth and a small tooth, wherein the large tooth and the small tooth cycle are alternately arranged, and an arc distance between a center line of the adjacent large tooth body and a center line of the small tooth body Similarly, a plurality of slots are associated between the large teeth and the small teeth, and the coils are embedded in the slots, so that the iron cores of each phase winding are respectively arranged by small teeth, large teeth and small teeth.
  • the large tooth gap air gap between the large tooth and the rotor is a uniform air gap
  • the small tooth arc surface air gap between the small tooth and the rotor is The uniform air gap is larger than the large tooth arc air gap
  • the pole arc air gap of each phase winding is similar to the sinusoidal distribution.
  • the invention discloses a stator comprising a large tooth and a small tooth, wherein the large tooth and the small tooth cycle are alternately arranged, and an arc distance between a center line of the adjacent large tooth body and a center line of the small tooth body Similarly, a plurality of slots are associated between the large teeth and the small teeth, and the coils are embedded in the slots to form the core of each phase winding. They are respectively arranged by three teeth of small teeth, large teeth and small teeth.
  • the root portions of the large tooth body and the yoke border portion of the four types of stators may be split and assembled, and the root portion of the large tooth body is a convex dovetail tooth and the inner side of the yoke is a concave dovetail side.
  • the slot is closely spliced with convex and concave dovetail shaped slots; the length of the tooth top of the small tooth body is greater than the length of the root curved surface, which is similar to the trapezoidal tooth; the stator processing procedure is to wind the electromagnetic wire first.
  • the convex dovetail teeth at the root of the large tooth are placed in the concave dovetail groove on the inner side of the yoke.
  • the large tooth body width is equal to or larger than the small tooth (2) tooth body width or at least twice the width of the small tooth tooth body.
  • the invention also discloses a brushless DC motor with any of the above stators, further comprising a rotor and an electronic commutation device, wherein the rotor is provided with a plurality of pairs of parallel magnetization or radial magnetization N/S a rotor permanent pole; the commutation device comprising a Hall position sensor and a rotor position permanent pole, the permanent poles of the rotor position being arranged at equal intervals of N/S poles or spaced over the shaft and being identical to the rotor permanent pole
  • the axis has the same number of poles.
  • the slot of the stator and the permanent magnet of the rotor are substantially oblique and intersecting, and the slot of the stator is equal to the slope of the permanent pole of the rotor.
  • the brushless DC motor is a two-phase brushless DC motor
  • the stator includes an A-phase winding and a B-phase winding
  • the A-phase winding and the B-phase winding are spatially 90° apart from each other.
  • the electrical angle, wherein the number of poles per phase is the same as the number of permanent poles of the rotor, that is, the number of the slots is four times the number of permanent poles of the rotor
  • the pole pitch of the permanent pole of the rotor is (0.65-1.0) ⁇ D/P.
  • a further technical solution is that the Hall position sensors of the two-phase brushless DC motor are respectively set The A-phase winding core pole and the B-phase winding core pole axis center line side of each other at a spatial position of 90° electrical angle; the permanent pole of the rotor and the permanent magnetic pole of the rotor position are at an electrical angle of 0° with each other in a spatial position
  • the permanent magnet pole of the rotor also serves as the permanent magnetic pole of the rotor position.
  • the brushless DC motor is a three-phase brushless DC motor
  • the stator includes an A-phase winding, a B-phase winding, and a C-phase winding, the A-phase winding, the B-phase winding, and the The C-phase windings are spatially 120° electrical angles to each other, wherein the number of poles per phase is 1/2 of the number of permanent poles of the rotor, that is, the number of the slots is three times the number of permanent poles of the rotor.
  • the pole pitch of the permanent pole of the rotor is (0.8-1.0) ⁇ D/P.
  • a further technical solution is that the rotor position permanent magnetic pole and the permanent magnet pole of the rotor are at an electrical angle of 90° with each other in a spatial position, and the Hall position sensor is three-phase and 120° electrical angles in a spatial position, respectively set.
  • the Hall position sensor is three-phase and 120° electrical angles in a spatial position, respectively set.
  • the invention also discloses a three-phase switched reluctance motor with any of the above stators, further comprising a rotor and an electronic commutation device, wherein the rotor is provided with a plurality of pairs of salient pole cores, and the phase change device a Hall position sensor and a rotor position permanent magnetic pole; the stator is including an A-phase winding, a B-phase winding, and a C-phase winding, the A-phase winding, the B-phase winding, and the C-phase winding are spatially mutually 120° electrical angle, wherein the number of poles per phase is the same as the number of poles of the salient pole core of the rotor, that is, the number of the slots is six times the number of poles of the salient pole of the rotor, and one pole of the salient pole of the rotor
  • the pole pitch is (0.38-0.42) ⁇ D/P.
  • the slot of the stator and the salient pole core of the rotor are oblique and intersecting, and the slot of the stator is equal to the slope of the salient pole core of the rotor.
  • a further technical solution is that the permanent magnet pole of the rotor position is coaxial with the rotor salient pole core and the pole pair is the same.
  • the rotor pole position of the permanent pole is equal to or smaller than the pole pole of the rotor permanent pole and is in a spatial position. The upper ones are 0° electrical angles.
  • a further technical solution is that the Hall position sensors are three-phase and are mutually in a spatial position.
  • the 120° electrical angle is set at the neutral of the A-phase winding, the B-phase winding, and the C-phase winding.
  • the present invention also discloses a shaded pole motor with any of the above stators, further comprising a rotor and a magnetically permeable ring, the magnetically permeable ring comprising an upper yoke and a lower yoke, the upper yoke
  • the lower yoke is tightly assembled without a gap, and the magnetic permeable ring is symmetrically disposed on the circumference of the stator, and the number of the magnetic permeable rings and the stator pole ratio is 1:1.
  • the stator includes the A-phase winding and the B-phase winding, and the B-phase windings of the A-phase winding are spatially 90° electrical angles with each other;
  • the B-phase winding is a secondary winding; when the B-phase winding is a main winding, the A-phase winding is a secondary winding; the primary winding is a multi-turn coil, and the secondary winding is a single-turn short-circuit coil Or multiple short-circuit coils.
  • the upper yoke is disposed at one end or one end of the stator core and is integrally pressed with the stator, and the upper yoke is pressed against the A-phase large teeth and the B-phase large teeth positions. And an effective side of the A-phase winding coil adjacent to the "back"-shaped yoke and an effective side of the B-phase winding coil, that is, the inner yoke is embedded in the groove One of each of the A-phase winding coil and the B-phase winding coil.
  • a further technical solution is that the brushless DC motor with any of the above stators is any two-phase, three-phase brushless DC linear motor.
  • a further technical solution is that a three-phase switched reluctance motor with any of the above stators is any three-phase switched reluctance linear motor.
  • a further technical solution is that the brushless DC motor with any of the above stators is any two-phase, three-phase brushless DC disk motor.
  • the three-phase switched reluctance motor with any of the above stators is any three-phase switched reluctance disc type motor.
  • the large teeth and the small teeth of the stator of the present invention are alternately arranged, and the magnetic poles of each phase winding core are mainly composed of large teeth, and the left and right small teeth are arranged by auxiliary three teeth, and the air gap of the three teeth is similar to that of
  • the sinusoidal distribution is such that the coil after energization can generate a circular rotating magnetic field, and the fusion of the phase and the same polar magnetic field reduces the pulsation phenomenon of the motor, so that the motor starts smoothly.
  • the width of the large tooth body is twice or more than the width of the small tooth tooth, the large tooth is long, the small tooth is short, and the cross-sectional area of the core of each phase remains unchanged. As the distance becomes shorter, the length of the end portion of the stator coil becomes relatively smaller, the coil resistance is small, the loss is reduced, and the efficiency is increased.
  • the two-phase windings of the two-phase brushless DC motor stator are 90° electrical angles in space, so that the two-phase combined magnetic potential and the permanent magnet potential of the rotor are always at an electrical angle of 90° when energized, and the torque is always kept at a maximum.
  • Figure 1 is a schematic view showing the unfolded structure of the stator of the present invention
  • FIG. 2 is a schematic view showing the assembly structure of the two-phase brushless DC motor of the present invention
  • FIG. 3 is a schematic view showing the assembly structure of a three-phase brushless DC motor or a three-phase switched reluctance motor according to the present invention
  • FIG. 4 is a schematic view showing the unfolding structure of the stator and the rotor cross-slot of the present invention
  • FIG. 5 is a schematic view showing winding of a stator two-phase coil of a two-phase brushless DC motor according to the present invention
  • FIG. 6 is a schematic diagram of a stator and a rotor of a two-phase brushless DC motor according to the present invention
  • Figure 8 is a schematic view showing the winding of a three-phase coil of a three-phase brushless DC motor according to the present invention.
  • Figure 9 is a schematic diagram of the stator and rotor eight poles of the three-phase brushless DC motor of the present invention.
  • FIG. 10 is a main circuit of an electronic commutation of a three-phase H-bridge driver of a three-phase brushless DC motor according to the present invention
  • Figure 11 is a schematic view showing the winding of a three-phase coil of a three-phase switched reluctance motor of the present invention.
  • Figure 12 is a schematic view showing the stator and rotor of the three-phase switched reluctance motor of the present invention.
  • FIG. 13 is a schematic diagram of a three-phase electronic commutation main circuit of the three-phase switched reluctance motor of the present invention.
  • Figure 14 is a schematic view showing the assembly structure of the shaded pole motor of the present invention.
  • Figure 15 is a schematic view showing the assembly of the magnetic flux ring and the stator of the shaded pole motor of the present invention.
  • Figure 16 is a schematic structural view of a magnetic conductive ring of a shaded pole motor of the present invention.
  • Figure 17 is a schematic structural view of an upper yoke of a shaded pole motor of the present invention.
  • Figure 18 is a perspective view of a large tooth of the stator of the present invention.
  • the present invention discloses a stator 9 comprising a large tooth 1 and a small tooth 2, wherein the large tooth 1 and the small tooth 2 are alternately arranged, and adjacent large teeth 1 tooth
  • the circular arc distance between the center line and the center line of the small tooth 2 tooth body is the same, and several tooth grooves 3 are associated between the large tooth 1 and the small tooth 2, and the tooth width of the large tooth 1 is equal to or larger than the small tooth.
  • the width of the tooth body, or at least twice the width of the tooth body of the small tooth 2 is determined according to the power of the motor and the size of the motor, the tooth width of the large tooth 1
  • the width of the small tooth 2 is twice or more than the width of the tooth, and the winding is embedded in the slot 3, and each pole core in each phase winding is respectively a small tooth 2, a large tooth 1 and a small tooth 2
  • the components are arranged in sequence; there is a common small tooth 2 between each phase winding and its adjacent winding, and each phase winding contains a large
  • the tooth 1 and the two small teeth 2 are mainly the large teeth 1 and the left and right small teeth 2 are auxiliary.
  • the large tooth cam surface air gap 5 and the small tooth cam surface air gap 6 of the large tooth 1 and the small tooth 2 are set, so that the pole arc air gap of each phase of the stator 9 is similar to a sinusoidal regular distribution, after being energized
  • the magnetic potential waves generated by the coil 4 are similar to the sinusoidal regular distribution, and there is a common small tooth 2 between each phase winding and its adjacent winding, so that the phase and the same polar magnetic field are fused and merged to produce a circular rotating magnetic field.
  • the motor pulsation phenomenon is reduced, and the motor starts smoothly; since the number of teeth constituting one pole of the stator 9 is only three teeth, the number of slots is relatively reduced compared to the existing single-phase or three-phase motor or multi-phase motor of the same specification, the slot A reduction in the number of teeth will reduce the harmonic potential of the teeth and increase the tank fullness.
  • the large-tooth arc surface air gap 5 and the small-tooth arc surface air gap 6 of the large tooth 1 and the small tooth 2 may be in accordance with the following three types. The situation is set.
  • the scope of protection of the present application is not limited to the manner described below, and any other large and small tooth gap setting of the stator having a pole arc air gap of each phase of the stator 9 similar to a sinusoidal distribution is realized. The methods are all protected by this application.
  • Method 1 The curved surface of the tooth tip of the large tooth 1 changes according to the sinusoidal law, and the air gap 5 of the large tooth surface between the large tooth 1 and the rotor 10 is a sinusoidal gradient air gap with a small middle and a large end, the small tooth 2 and the rotor 10
  • the interdental arc gap air gap 6 is a uniform air gap and is larger than the air gap at both ends of the large tooth arc surface air gap 5.
  • Method 2 The tooth top surface of the large tooth 1 is a left-right symmetric chamfer, and the large-tooth arc surface air gap 5 between the large tooth 1 and the rotor 10 is a small intermediate air gap with large ends, and the small tooth 2 and the rotor 10
  • the interdental arc gap air gap 6 is a uniform air gap and is larger than the air gap at both ends of the large tooth arc surface air gap 5.
  • Manner 3 The large-tooth arc surface air gap 5 between the large tooth 1 and the rotor 10 is a uniform air gap, and the small tooth arc surface air gap 6 between the small tooth 2 and the rotor 10 is a uniform air gap and larger than the large tooth Curved air gap 5.
  • the large teeth 1 are long in length, and the small teeth 2 are short in teeth, so that the cross-sectional area of the core of each phase remains unchanged and the pole pitch becomes shorter, and the length of the end portion of the coil 4 of the stator 9 becomes shorter.
  • the resistance of the coil 4 becomes smaller, The loss is reduced, resulting in an increase in motor efficiency.
  • the small tooth cam surface air gap 6 between the small tooth 2 and the rotor 10 and the large tooth arc surface air gap 5 between the large tooth 1 and the rotor 10 may be uniform air.
  • the gap, and the large tooth cam surface air gap 5 is the same as the small tooth cam surface air gap 6.
  • the root portion of the large tooth 1 and the yoke border portion of the above-mentioned four types of stators can be assembled and assembled.
  • the root portion of the large tooth 1 is a convex dovetail tooth 17 and the inner side of the yoke is concave.
  • the dovetail groove 18 is closely spliced with convex and concave dovetail-shaped cogging; the length of the tooth top of the small tooth 2 tooth body is larger than the length of the tooth root arc surface is similar to the trapezoidal tooth; the stator 9 processing procedure is to take the electromagnetic wire First, the left and right small teeth 2 are wound, and then the convex dovetail teeth 17 at the root of the large tooth 1 are embedded in the concave dovetail groove 18 on the inner side of the yoke.
  • the stator 9 material comprises a high magnetic conductive silicon steel sheet or a silicon steel sheet or a non-metal and high conductivity wire; the stator 9 is an inner stator or an outer stator or a disc stator or a linear stator; the stator 9 has a square or circular shape; The stator 9 is used as a stator of a single-phase or three-phase motor, a multi-phase motor or a generator.
  • the non-metallic material is used as the stator 9 skeleton for the disc motor.
  • the rotor When the stator is used in a single-phase AC motor, the rotor further includes a rotor, the rotor is a squirrel cage type, a winding type, and a permanent magnetic pole type; the stator includes an A phase winding and the B phase winding, and the A phase winding And the B-phase windings are spatially 90° electrical degrees from each other.
  • the rotor When the stator is used as a three-phase AC motor, the rotor further includes a rotor, the rotor is a squirrel-cage type, a winding type, and a permanent magnetic pole type; and the stator includes an A-phase winding, a B-phase winding, and a C-phase winding, The A-phase winding, the B-phase winding, and the C-phase winding are spatially 120° electrical degrees from each other.
  • the rotor When the stator is used in a multi-phase AC motor, the rotor further includes a rotor and a frequency converter, the rotor is a squirrel cage type, a permanent magnetic pole type; and the stator includes any A phase winding, a B phase winding, and a C phase winding.
  • the A-phase winding, the B-phase winding, and the C-phase winding are spatially 120° electrical degrees from each other; or the stator includes any A-phase winding and the B-phase winding, the A-phase winding and the B-phase winding They are spatially 90° electrical angles to each other;
  • the frequency converter is three-phase or two-phase corresponding to the phase of the winding between the phases.
  • a brushless DC motor comprising the stator 9, the rotor 10 and the electronic commutation device according to any one of the embodiments, wherein the rotor 10 is provided with a plurality of pairs of parallel magnetized or radially magnetized N/S rotor permanent magnetic poles.
  • the electronic commutation device includes a Hall position sensor 14 and a rotor position permanent magnetic pole 12, and the rotor position permanent magnetic poles 12 are arranged at the N/S pole alternately spaced or spaced on the rotating shaft to be coaxial with the rotor 10 permanent magnetic poles. And the pole pairs are the same.
  • the permanent magnetic pole of the rotor 10 doubles as the rotor position permanent magnetic pole 12, and the Hall position sensor 14 is mounted on the inner circumference side of the stator 9 core and the permanent magnetic pole of the rotor 10. Form the signal acquisition part, as shown in Figure 2.
  • the Hall position sensor 14 and the rotor position permanent magnetic pole 12 constitute a signal acquisition portion, and the Hall position sensor 14 is mounted on the casing of the stator 9.
  • the bracket 13 is provided at the neutral line of each phase winding of the stator 9, as shown in FIG.
  • the tooth groove 3 of the stator 9 and the permanent magnetic pole of the rotor 10 are obliquely shaped and have a cross shape, and the pitch of the stator 9 and the permanent magnetic pole of the rotor 10 are equal.
  • FIG. 4 when one pole pole surface of the permanent magnet end of the rotor 10 is turned to the one pole pole surface of the stator 9 When the acute angle points intersect, the maximum spacing 15 between the other end two-pole arc surfaces is more than twice the slot width. This is used as a reference for the trough degree of the rotor 9 of the stator 9.
  • the core length of the stator 9 and the rotor 10 is also weighed. The effect on the chute, the longer the length, the smaller the chute should be, and vice versa.
  • the brushless DC motor is a two-phase brushless DC motor
  • the stator 9 includes an A-phase winding and a B-phase winding, and the A-phase winding and the B-phase winding They are spatially 90° electrical angles to each other, wherein the number of poles per phase is the same as the number of permanent poles of the rotor 10, that is, the number of the slots 3 is four times the number of permanent poles of the rotor 10.
  • the 6 is a two-phase brushless DC motor in which the number of slots 3 of the stator 9 is 16, and the number of permanent poles of the rotor 10 is 4.
  • the tooth width of the large tooth 1 of the motor is 8 mm
  • the tooth width of the small tooth 2 is 2.6 mm
  • the polar arc faces of the four A phase core magnetic poles 11 and the four B phase iron core magnetic poles 22 are respectively
  • the large teeth 1 are mainly composed, and the small teeth 2 are arranged in a secondary arrangement, and the pole air gaps are similarly distributed in a sinusoidal manner, and the stator 9 is connected to each phase winding to form a N/S/N/S symmetry.
  • Magnetic pole is a two-phase brushless DC motor in which the number of slots 3 of the stator 9 is 16, and the number of permanent poles of the rotor 10 is 4.
  • the tooth width of the large tooth 1 of the motor is 8 mm
  • the tooth width of the small tooth 2 is 2.6 mm
  • the pole pitch of the permanent magnetic pole of the rotor 10 is (0.65-1.0) ⁇ D/P.
  • D is the diameter of the rotor and P is the number of poles.
  • the slot 3 of the stator 9 has a slot width of 0.2 mm to 3 mm.
  • the two-phase brushless DC motor is controlled by a two-phase H-bridge driver open-loop or closed-loop electronic commutation circuit device.
  • the brushless DC motor is a three-phase brushless DC motor
  • the stator 9 includes an A-phase winding, a B-phase winding, and a C-phase winding, the A-phase winding,
  • the B-phase winding and the C-phase winding are spatially 120° electrical angles with each other, wherein the number of poles per phase is 1/2 of the number of permanent poles of the rotor 10, that is, the stator 9 is 3
  • the number is three times the number of permanent poles of the rotor 10.
  • Fig. 9 shows a three-phase brushless DC motor in which the number of slots 3 of the stator 9 is 24 and the number of permanent poles of the rotor 10 is 8.
  • the large tooth 1 has a tooth width of 7 mm
  • the small tooth 2 has a tooth width of 2.6 mm
  • the arc faces are mainly composed of large teeth 1 and left and right small teeth 2, and the arc gap air gap is similar to the sinusoidal distribution.
  • the stator 9 adopts a datum-type winding for each phase, and is connected in parallel or in series to form four N/N/N/N or S/S/S/S isotropic magnetic poles.
  • the polarities of the four A-phase iron core poles 11 are N/N/N/N or S/S/S/S polarity identical isotropic magnetic poles, and the other two phases are analogous; the rotor 10 permanent magnetic pole
  • the pole pitch of one pole is (0.8-1.0) ⁇ D/P. D is the diameter of the rotor and P is the number of poles.
  • the slot 3 of the stator 9 has a slot width of 0.2 mm to 3 mm.
  • the three-phase brushless DC motor has three Hall position sensors 14, and the Hall position sensors 14 are sequentially disposed on the A-phase core magnetic poles 11 through brackets 13 mounted on the casing of the stator 9.
  • the polar phase of the B-phase core pole 22 and the C-phase core pole 33 are at the neutral line; the rotor position of the permanent pole 12 is coaxial with the permanent pole of the rotor 10 and the pole pair is equal, and the pole pitch is equal to or less than
  • the permanent magnet poles of the rotor 10 are at a pole pitch and are at an electrical angle of 90° to each other in a spatial position.
  • the three-phase brushless DC motor is controlled by a three-phase H-bridge driver closed-loop or open-loop electronic commutation circuit device.
  • a three-phase switched reluctance motor includes the stator 9 of any one of the embodiments, and further includes a rotor 10 and an electronic commutation device, and the rotor 10 is provided with a plurality of pairs of salient pole cores.
  • the rotor 10 has no windings and permanent poles on the salient core; the commutation device includes a Hall position sensor 14 and a rotor position permanent pole 12, the rotor position permanent pole 12 is an independent permanent pole, rotor position
  • the permanent magnetic pole 12 is coaxial with the salient pole core of the rotor 10 and has the same number of pole pairs, and their mutual position
  • the space position sensor 14 and the rotor position permanent magnetic pole 12 constitute a signal acquisition portion, which is disposed in the frame 13 mounted on the casing of the stator 9 at a mutual electrical angle of 0°.
  • the stator 9 is at the neutral line of each phase winding, as shown in Figure 3.
  • the stator 9 is comprised of an A-phase winding and a B-phase winding and a C-phase winding, the A-phase winding, the B-phase winding and the C-phase winding are spatially 120° electrical angles with each other, wherein each phase winding
  • the number of poles is the same as the number of poles of the salient pole of the rotor 10, that is, the number of slots 3 of the stator 9 is six times the number of poles of the salient pole of the rotor 10.
  • Fig. 11 shows a three-phase switched reluctance motor in which the number of the slots 9 of the stator 9 is 24 and the number of poles of the rotor 10 is 4.
  • the large tooth 1 has a tooth width of 6 mm
  • the small tooth 2 has a tooth width of 2.6 mm
  • the pole arc faces of the magnetic poles 33 are mainly composed of the large teeth 1 and the left and right small teeth 2 are auxiliary arrays, and the pole arc air gaps are similarly distributed in a sinusoidal manner, and the stator 9 is connected to each phase winding. Symmetrical N/S/N/S four magnetic poles.
  • the pole pitch of the salient pole core of the rotor 10 is (0.38-0.42) ⁇ D/P.
  • D is the diameter of the rotor and P is the number of poles.
  • the slot 3 of the stator 9 has a slot width of 0.2 mm to 3 mm.
  • the slot 3 of the stator 9 and the salient pole core of the rotor 10 are obliquely shaped and have a cross shape, and the stator 9 has a slot 3 and the rotor 10 has a salient pole core.
  • the slopes are equal.
  • FIG. 4 when one pole pole surface of one end of the salient pole of the rotor 10 is turned to intersect the acute angle of one pole of the stator 9, the other end of the arc is between the arc surfaces.
  • the maximum spacing 15 is more than twice the notch width. This is used as a reference for the trough of the stator 9 rotor 10; it is also necessary to weigh the stator 9 and the rotor 10 core length. The influence of the degree on the chute, the longer the length, the smaller the chute should be, and vice versa.
  • the three-phase switched reluctance motor is also provided with a three-phase electronic commutation circuit control device, which can be controlled by a closed loop or an open loop, depending on the needs.
  • a shaded pole motor comprising the stator 9 of any one of the embodiments, further comprising a rotor 10 and a magnetically permeable ring, as shown in FIG. 16, the magnetically permeable ring comprising an upper yoke 7 and a lower yoke 8 in which the upper yoke 7 and the lower yoke 8 are tightly fitted without a gap, and the magnetically permeable ring is symmetrically disposed on the circumference of the stator 9, the number and the number of the magnetic conductive rings
  • the stator pole ratio is 1:1.
  • the stator includes the A-phase winding and the B-phase winding, and the B-phase windings of the A-phase winding are spatially 90° electrical angles with each other;
  • the winding is a main winding
  • the B-phase winding is a secondary winding
  • the A-phase winding is a secondary winding
  • the primary winding is a multi-turn coil
  • the secondary winding is a single winding ⁇ Short-circuit coil or multi-turn short-circuit coil.
  • the upper yoke 7 is disposed at one end or one end of the stator 9 core and is integrally pressed with the stator.
  • the upper yoke 7 is pressed against the A-phase large teeth 1 and the B-phase large teeth 1 position.
  • the lower yoke 8 is similar to the "back" type of the adjacent one of the A-phase winding coils and an effective side of the A-phase winding coil, that is, the groove 16 is embedded in the groove 16 One side of each of the A-phase winding coil and the B-phase winding coil.
  • Any of the above embodiments can also be applied to a disc motor, including a two-phase, three-phase brushless DC disc motor or a three-phase switched reluctance disc motor. Any of the above embodiments can also be applied to a linear motor, including a two-phase, three-phase brushless DC linear motor or a three-phase switched reluctance linear motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

La présente invention concerne un stator qui comprend une grande dent (1) et une petite dent (2) qui sont disposées périodiquement et en alternance. Les distances d'arc entre les lignes centrales du corps de la grande dent (1) sont égales aux distances d'arc entre les lignes centrales de la petite dent (2) adjacente. Une pluralité de rainures (3) de dent sont disposées entre la grande dent (1) et la petite dent (2). Les surfaces bombées de la partie supérieure de la grande dent (1) se modifient en fonction de la loi des sinus. Un entrefer (5) de la surface bombée de la grande dent entre les grandes dents (1) et un rotor (10) est un entrefer de gradient de sinus, ayant une petite partie médiane et deux grandes extrémités, et un entrefer (6) de la surface bombée de petite dent entre les petites dents (2) et le rotor (10) est un entrefer uniforme et il est supérieur à l'entrefer (5) à chacune des deux extrémités de chaque grande dent. Des bobines (W) sont incorporées dans les rainures (3) de dent pour que les noyaux de fer formant chaque enroulement de phase comprennent respectivement trois dents dans lesquelles une petite dent (2), une grande dent (1) et une petite dent (2) sont disposées séquentiellement. Une petite dent partagée (2) est disposée entre chaque enroulement de phase et son enroulement adjacent et l'entrefer de surface bombée de pôle de chaque enroulement de phase est distribué de manière similaire à la loi des sinus. Un champ magnétique rond rotatif peut être produit et le phénomène de pulsation du moteur peut être réduit.
PCT/CN2015/082402 2014-07-08 2015-06-25 Stator, moteur sans balai à courant continu, moteur à réluctance de commutateur triphasé et moteur à bague de déphasage WO2016004823A1 (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
CN201410326325.9 2014-07-08
CN201410326346.0 2014-07-08
CN201410326324.4 2014-07-08
CN201410326346.0A CN104079136A (zh) 2014-07-08 2014-07-08 一种三相开关磁阻电机及正弦定子
CN201410326323.XA CN104079137A (zh) 2014-07-08 2014-07-08 一种二相无刷直流电机及正弦定子
CN201410326325.9A CN104092345A (zh) 2014-07-08 2014-07-08 一种三相无刷直流电机及正弦定子
CN201410326323.X 2014-07-08
CN201410326324.4A CN104079085A (zh) 2014-07-08 2014-07-08 一种电机及正弦定子
CN201410719607.5 2014-12-02
CN201410719607.5A CN104410177B (zh) 2014-07-08 2014-12-02 一种定子及其相应的无刷直流电机和三相开关磁阻电机

Publications (1)

Publication Number Publication Date
WO2016004823A1 true WO2016004823A1 (fr) 2016-01-14

Family

ID=52647781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/082402 WO2016004823A1 (fr) 2014-07-08 2015-06-25 Stator, moteur sans balai à courant continu, moteur à réluctance de commutateur triphasé et moteur à bague de déphasage

Country Status (2)

Country Link
CN (2) CN104410177B (fr)
WO (1) WO2016004823A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI738096B (zh) * 2019-10-25 2021-09-01 黃柏原 可變定子無刷直流馬達

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410177B (zh) * 2014-07-08 2017-06-16 顾明 一种定子及其相应的无刷直流电机和三相开关磁阻电机
CN104917309A (zh) * 2015-06-25 2015-09-16 顾明 一种定子及其相应的无刷直流、三相开关磁阻和罩极电机
DE102017216075A1 (de) * 2017-09-12 2019-03-14 Robert Bosch Gmbh Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen eines solchen Stators
CN109713818B (zh) * 2018-12-29 2023-12-08 湖南开启时代科技股份有限公司 径向充磁永磁转子倍极式开关磁阻电机
CN110912293A (zh) * 2019-12-09 2020-03-24 珠海格力电器股份有限公司 单相永磁同步电机及具有其的吸尘器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002064949A (ja) * 2000-08-18 2002-02-28 Aichi Emerson Electric Co Ltd 電動機
CN201509142U (zh) * 2009-08-12 2010-06-16 深圳航天科技创新研究院 大极型方波三相无刷永磁直流电动机
CN102223041A (zh) * 2010-04-13 2011-10-19 依必安-派特穆尔芬根股份有限两合公司 电机
CN104079136A (zh) * 2014-07-08 2014-10-01 顾明 一种三相开关磁阻电机及正弦定子
CN104079137A (zh) * 2014-07-08 2014-10-01 顾明 一种二相无刷直流电机及正弦定子
CN104079085A (zh) * 2014-07-08 2014-10-01 顾明 一种电机及正弦定子
CN104092345A (zh) * 2014-07-08 2014-10-08 顾明 一种三相无刷直流电机及正弦定子
CN104410177A (zh) * 2014-07-08 2015-03-11 顾明 一种定子及其相应的无刷直流电机和三相开关磁阻电机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285444A (ja) * 1991-03-12 1992-10-09 Fujitsu General Ltd 電動機の固定子鉄心
JP2007209186A (ja) * 2006-02-06 2007-08-16 Mitsubishi Electric Corp 同期電動機及び同期電動機の製造方法
CN2935612Y (zh) * 2006-06-22 2007-08-15 江苏超力电器有限公司 汽车电动助力转向永磁无刷直流电动机
CN201204536Y (zh) * 2008-04-29 2009-03-04 陈炎平 电动车辆用开关磁阻轮毂电动机
WO2011029230A1 (fr) * 2009-09-11 2011-03-17 深圳航天科技创新研究院 Moteur à courant continu, sans balai et à aimant permanent, comportant une structure à grande et petite denture, et procédé d'assemblage associé
CN103269143A (zh) * 2013-05-06 2013-08-28 德清县金宇达电气有限公司 一种两相无刷直流电机
CN203406763U (zh) * 2013-08-30 2014-01-22 台州指鼎电器有限公司 永磁直流无刷电机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002064949A (ja) * 2000-08-18 2002-02-28 Aichi Emerson Electric Co Ltd 電動機
CN201509142U (zh) * 2009-08-12 2010-06-16 深圳航天科技创新研究院 大极型方波三相无刷永磁直流电动机
CN102223041A (zh) * 2010-04-13 2011-10-19 依必安-派特穆尔芬根股份有限两合公司 电机
CN104079136A (zh) * 2014-07-08 2014-10-01 顾明 一种三相开关磁阻电机及正弦定子
CN104079137A (zh) * 2014-07-08 2014-10-01 顾明 一种二相无刷直流电机及正弦定子
CN104079085A (zh) * 2014-07-08 2014-10-01 顾明 一种电机及正弦定子
CN104092345A (zh) * 2014-07-08 2014-10-08 顾明 一种三相无刷直流电机及正弦定子
CN104410177A (zh) * 2014-07-08 2015-03-11 顾明 一种定子及其相应的无刷直流电机和三相开关磁阻电机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI738096B (zh) * 2019-10-25 2021-09-01 黃柏原 可變定子無刷直流馬達

Also Published As

Publication number Publication date
CN104410177B (zh) 2017-06-16
CN204258453U (zh) 2015-04-08
CN104410177A (zh) 2015-03-11

Similar Documents

Publication Publication Date Title
JP4926107B2 (ja) 回転電機
WO2016004823A1 (fr) Stator, moteur sans balai à courant continu, moteur à réluctance de commutateur triphasé et moteur à bague de déphasage
US11532963B2 (en) Torque tunnel Halbach Array electric machine
KR101255960B1 (ko) 스위치드 릴럭턴스 모터
EP3062426A1 (fr) Moteur sans balais monophasé
JP2013215021A (ja) 電磁誘導装置
US20130069453A1 (en) Mechanically commutated switched reluctance motor
CN105048740A (zh) 一种永磁和变磁阻并列式混合励磁无刷电机
US7638917B2 (en) Electrical rotating machine
US8917004B2 (en) Homopolar motor-generator
CN205178671U (zh) 一种定子及其相应的无刷直流、三相开关磁阻和罩极电机
US10020717B2 (en) Dual stator, flux switching permanent magnet machine
JP6176217B2 (ja) 磁石レス回転電機
US20140375163A1 (en) Electromagnetic Generator
US20100052460A1 (en) Electrical rotating machine
RU2534046C1 (ru) Электрогенератор
KR101614685B1 (ko) 권선계자형 동기 전동기 및 그의 회전자
JP2017204961A (ja) 回転電機
JP2005020885A (ja) ロータリ・リニア直流モータ
JP2017509311A (ja) ハイブリッド電気機械
RU115978U1 (ru) Магнитоэлектрический генератор
US20150180296A1 (en) Winding for a stator element of an electromagnetic motor or generator, comprising at least one single-component, rigid limb, and method for producing same
JP2009171799A (ja) 永久磁石式同期モータ
WO2002082622A1 (fr) Moteur synchrone du type a aimant permanent
CN104917309A (zh) 一种定子及其相应的无刷直流、三相开关磁阻和罩极电机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15819060

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205N DATED 17/03/2017)

122 Ep: pct application non-entry in european phase

Ref document number: 15819060

Country of ref document: EP

Kind code of ref document: A1