CN104092345A - Three-phase brushless direct current motor and sine stator - Google Patents
Three-phase brushless direct current motor and sine stator Download PDFInfo
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Abstract
According to the technical scheme of a three-phase brushless direct current motor and a sine stator, a plurality of teeth 5 and teeth 4 are arranged circumferentially at intervals, and the width of the body of each tooth 5 is two or more times the width of the body of each tooth 4; iron core magnetic poles are respectively formed by three teeth with a tooth 5 as the main tooth and a left tooth 4 and a right tooth 4 as auxiliary teeth, and the air gap of a three-tooth pole arc surface is distributed according to a sine law. By means of the magnetic pile sharing among phases of the teeth 4, the function of fusion and connection of magnetic fields of the poles among phases is achieved, and the effect similar to a round rotary magnetic field is generate. Thus, a pulse phenomenon of the motor is further lowered, the motor is started stably, manufacturing cost, noise and energy consumption are lowered, and efficiency and torque are further improved.
Description
Technical field
This technology relates to machine field, especially a kind of three-phase brushless dc motor of electronics commutation.
Background technology
Existing three-phase brushless dc motor is the Yi Ge branch of permagnetic synchronous motor, in its motor stator core circle, is provided with convex tooth, and single double wedge is coiled into a utmost point with enamel covered wire, and salient pole is equal distribution on circle.One phase magnetic pole is for radially a pair of.Be generally that rotor is that 4 salient poles, stators are that 6 salient poles or rotor are that 6 salient poles, stators are 8 salient poles or above double-salient-pole three-phase brushless dc motor, rotor is provided with permanent magnet poles.During energising, by position transducer, electronic commutator, each phase coil on stator is switched in order one by one, the magnetic field that produces three-phase symmetrical on stator core, rotor driven rotation respectively.
Brshless DC motor, due to its broad speed adjustable range and energy-saving effect, is widely used in the every field such as industry, national defence.Its shortcoming has pulsation phenomenon while being motor operation.Its reason has multiple, and main is double-salient-pole reasons in structure, and the electromagnetic torque producing while making motor commutation exists jumping phenomenon, and the natural location torque that on rotor, on permanent-magnet and stator, teeth groove produces etc.Therefore, limited the utilization on high precise equipment.
And the stator core of permagnetic synchronous motor is multi-groove shape, the winding of the inside is distributed winding, and matching used commutation electronic installation, that is: servo controller, makes permagnetic synchronous motor have good sinusoidal mmf wave and speed adjusting performance.Therefore, be widely used on high precise equipment.Although there is fine speed governing operation performance, compare brshless DC motor, its shortcoming is that cost of manufacture is higher, power energy, efficiency are inferior a bit.
The method reducing for three-phase brushless dc motor torque pulsation at present mainly contains following several types on body: the methods such as skewed stator slot or skewed-rotor, fractional-slot, magnetic slot mud, closed slot, slotless winding and increase rotor number of poles or Optimal Control Strategy, but not ideal, also increased to a certain extent cost.
Summary of the invention
For existing three-phase brushless dc motor or permagnetic synchronous motor Shortcomings, the technical program is by changing motor stator shape, makes that pole span shortens, three tooth polar arc face air gaps distribute similar in appearance to being sinusoidal rule changes shape.Change current permanent-magnetic synchronous motor stator one utmost point and need to can reach magnetic potential sinusoidal waveform compared with teeth cells.Utilizing tooth 4 is features total between phase and phase magnetic pole, there is the effect that phase and phase pole field merges handing-over, generation is similar in appearance to the effect of circular rotating field, make three-phase double salient-pole electric machine electromagnetic torque when commutation be unlikely to sudden change, motor operates steadily, reducing noise, efficiency, torque have further raising.
Three-phase brushless dc motor and a sinusoidal stator technical scheme, comprise stator core 9 and rotor permanent magnetic pole 10.Wherein, by hall position sensor, be installed on stator 9 casing Yi Ce collateral branch framves 13 and form the signal sampling part in Three-phase electronic commutation circuit device with rotor-position permanent magnet poles 12.
Please refer to Fig. 1, a kind of three-phase brushless dc motor and sinusoidal stator technical scheme, there are several teeth 5 to equate with the circular arc distance between the tooth 4 tooth body axle neutral lines by circle-shaped alternate intervals arrangement and tooth 5 tooth bodies with tooth 4, some A phase grooves 6,7 associations of B phase groove between several teeth 5, tooth 4 and groove area equate, tooth 5 tooth body width are the more than two times of tooth 4 tooth body width.
Because the watt level of motor is different, tooth 5 tooth body width and tooth 4 tooth body width are just determined according to power of motor size shape.
Stator 9 winding iron core magnetic poles in the technical program and the polar arc face air gap 14 between rotor permanent magnetic pole 10 are non-homogeneous air gap, are similar in appearance to the air gap changing by sinusoidal rule.Wherein, tooth 5 cambered surfaces in stator are the mechanical configurations cambered surfaces that change by sinusoidal rule, tooth 5 cambered surface air gaps are the sinusoidal gradual change air gap that intermediate air gap is little, two ends air gap is large, that is: take the tooth 5 tooth body axle neutral lines becomes air gap large by sinusoidal rule in two ends to the left and right gradually as line of demarcation along tooth 5 cambered surfaces, and tooth 4 cambered surface air gaps are even air gap and are a bit larger tham tooth 5 cambered surface two ends air gaps.
To be pole span one holding across four the embedding method of single coil that to take tooth 4, tooth 5, tooth 4 three teeth be a utmost point, one mutually in some single coils connect into a phase winding, every phase winding connects into respectively some like poles, and every every utmost point iron core in mutually by tooth 4, tooth 5, tooth 4 three teeth, is rearranged respectively and polar arc face air gap is sinusoidal rule distribution shape.
A phase winding 1 is embedded in 6 li of A phase grooves and is holding tooth 4, tooth 5, tooth 4 three teeth and form A phase core magnetic poles 11 and adjacent B phase winding 2 and be embedded in 7 li of B phase grooves and holding tooth 4, tooth 5, tooth 4 three teeth and form B phase core magnetic poles 22 and adjacent C phase winding 3 and be embedded in 8 li of C phase grooves and holding tooth 4, tooth 5, tooth 4 three teeth composition C phase core magnetic poles 33 120 ° of electrical degrees each other on locus.
At tooth 4, tooth 5, tooth 4 three teeth, rearrange one extremely in, tooth 5 is main tooth, tooth 4 is auxiliary tooth for phase and phase magnetic pole has, tooth 5 tooth body width are the more than two times or two times of tooth 4 tooth body width.Increase tooth 5 tooth bodies, dwindle tooth 4 tooth body width, on the one hand pole span is diminished, but an extremely total iron core magnetic is close constant, pole span shortens, and coil is just less, and stator coil end length shortens, and coil resistance is little, loss just reduces; Due to the number of teeth that forms a utmost point three teeth only, from motor on the whole, the stator slot number of teeth is fewer, and teeth groove harmonic content is fewer, and loss will further reduce; Owing to adopting tooth 5, be that master, left and right tooth 4 are that auxiliary three teeth rearrange a utmost point, polar arc face air gap is sinusoidal rule distribution shape, makes the magnetic potential producing in coil electricity closer to sinusoidal waveform.
Three-phase brushless dc motor and a sinusoidal stator, also configure the electronics commutation circuit control device such as three-phase H bridge driver, different as required, can adopt closed loop, also can adopt controlling of open loop.
Every in described stator is multitudinous utmost point formula winding mutually, connects into respectively some N/N or the consistent like pole of S/S isopolarity.
The formation of described a kind of three-phase brushless dc motor can have different number of stator slots and rotor number of poles.
Following table has been listed the corresponding relation of several number of stator slots and rotor number of poles.
| Stator teeth groove number | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 |
| Rotor number of poles | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
Not only only have above-mentioned these corresponding relations, the ratio that can also be three times of rotor numbers of poles according to number of stator slots continues to extend the corresponding relation of stator and rotor.
Described stator 9 iron core width of rebate are 2mm to 3mm.
Described rotor permanent magnetic pole 10 1 utmost point pole spans are (1～0.8) * π D/P, and D is root diameter, and P is number of poles.
Some N/S permanent magnet poles 10 intervals are evenly covered with on rotor core.
Described field spider permanent magnet poles 10 is circular cambered surface, and magnetic pole is radial magnetizing or parallel magnetization, is shaped as a watt shape, is bonded on rotor core.
In order to reduce location torque, stator 9 teeth groove or rotor permanent magnetic pole 10 adopt oblique design.
In order to reduce stator 9 skewed slot degree, on rotor, adopt oblique permanent magnet poles 10.Its stator 9 teeth groove and rotor permanent magnet 10 are oblique, are cross shaped head and skewed slot degree and equate.If when the utmost point polar arc face of rotor permanent magnetic pole 10 one end goes to while intersecting with stator 9 one utmost point polar arc face 2 acute angle points, the maximum spacing 15 between the cambered surface of other end the two poles of the earth is two times of above width of rebate.This is as the reference of rotor skewed slot degree.Also will weigh in addition the impact of stator-rotor iron core length on skewed slot degree, length is longer, and its skewed slot degree is less, otherwise larger.
In order to determine rotor-position, adopt and establish the position that a position transducer is determined rotor in the pole axis neutral line place of 120 ° of electrical degrees each other at three-phase.
Three position transducers are located at respectively the pole axis neutral line place of A phase core magnetic pole 11, B phase core magnetic pole 22, C phase core magnetic pole 33 successively.
Described rotor-position permanent magnet poles 12 and number of pole-pairs coaxial with rotor permanent magnetic pole 10 equate, one utmost point pole span is equal to or less than rotor permanent magnetic pole 10 1 utmost point pole spans and 90 ° of electrical degrees each other on locus.
Not only magnetosensitive position transducer can be determined rotor-position, photosensitive position transducer or utilize the inductance value size on the every phase coil of stator can determine the position of rotor equally.
A phase magnetosensitive position transducer is controlled A phase winding 1, and B phase magnetosensitive position transducer is controlled B phase winding 2, and C phase magnetosensitive position transducer is controlled C phase winding 3.
When rotor rotates, the permanent magnet poles N utmost point and the S utmost point are in turn by hall position sensor H1, H2, H3, thereby three of producing respective rotor position positive with three negative Hall voltages, after amplifying, control field effect transistor conducting, make threephase stator winding switch current in turn.
Described a kind of three-phase brushless dc motor and sinusoidal stator can be internal stator or external stator.
Described a kind of three-phase brushless dc motor and sinusoidal stator profile can be for square or circular.
Described a kind of three-phase brushless dc motor and sinusoidal stator can be motor or generator.
Described a kind of three-phase brushless dc motor and sinusoidal stator can be linear electric motors.
A kind of three-phase brushless dc motor and sinusoidal stator that described Linear motion actuator stator structure can be regarded a rotation as form by radially cutting also generate plane open.
In described a kind of three-phase brushless dc motor and sinusoidal stator, tooth 4, tooth 5, tooth 4 three teeth form a utmost point, three tooth machinery polar arc faces are sinusoidal rule distribution shape, and polar arc face air gap is also sinusoidal rule distribution shape, and the magnetic potential of air gap waveform producing during coil electricity is also close to sinusoidal waveform.Increase tooth 5 tooth bodies, dwindle tooth 4 tooth body width, pole span is shortened, but an extremely total iron core magnetic is close constant, pole span shortens, and coil is just less, and stator coil end length shortens, and coil resistance is little, loss just reduces; Due to the number of teeth that forms a utmost point three teeth only, from motor on the whole, the stator slot number of teeth is fewer, and teeth groove harmonic content is fewer, and loss will further reduce.
In described a kind of three-phase brushless dc motor and sinusoidal stator, tooth 5 is main tooth, and tooth 4 is that auxiliary tooth is also for phase and phase magnetic pole is total.Utilizing tooth 4 is features total between phase and phase magnetic pole, has the effect that phase and phase pole field merges handing-over.Owing to adopting tooth 5, be that master, left and right tooth 4 are that auxiliary three teeth rearrange a utmost point, polar arc face air gap is sinusoidal rule distribution shape, makes the mmf wave producing in coil electricity closer to sine, produces the effect similar in appearance to circular rotating field.
Adopt the technical program advantage to be: 1. every mutually every utmost point take that tooth 5 rearranges as main, left and right tooth 4 as auxiliary three teeth and polar arc face air gap is sinusoidal rule distribution shape, there is good sinusoidal wave mmf wave, utilizing tooth 4 is features total between phase and phase magnetic pole, generation, similar in appearance to the effect in circular magnetic field, has the effect that handing-over is merged in phase and phase magnetic field.Overcome two kinds of deficiencies of brshless DC motor or permagnetic synchronous motor, be integrate two kinds of advantages a kind of three-phase brushless dc motor.2. coil rule is simple, can use coil inserting apparatus embed wholly, reduces manual operation intensity.
Accompanying drawing explanation
Fig. 1 is stator, the rotor deployed configuration schematic diagram of a kind of three-phase brushless dc motor and sinusoidal stator.
Figure 1A is a kind of three-phase brushless dc motor and sinusoidal stator four utmost point embodiment schematic diagrames.
Figure 1B is a kind of three-phase brushless dc motor and sinusoidal stator, rotor four utmost point embodiment schematic diagrames.
Fig. 2 is a kind of three-phase brushless dc motor and sinusoidal stator three-phase H bridge driver electronics commutation main circuit.
Fig. 3 is the motor general assembly structural representation of a kind of three-phase brushless dc motor and sinusoidal stator.
Fig. 4 is the rotor intersection skewed slot deployed configuration schematic diagram of a kind of three-phase brushless dc motor and sinusoidal stator.
In figure: the 1st, A phase winding, the 2nd, B phase winding, the 3rd, C phase winding, the 4th, tooth, the 5th, tooth, the 6th, A phase groove, the 7th, B phase groove, the 8th, C phase groove, the 9th, stator, the 10th, rotor permanent magnetic pole, the 11st, A phase core magnetic pole, the 12nd, rotor-position permanent magnet poles, the 13rd, support, the 14th, air gap, the 15th, spacing, the 22nd, B phase core magnetic pole, the 33rd, C phase core magnetic pole.
Specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Please refer to Fig. 3, a kind of three-phase brushless dc motor motor and sinusoidal stator, comprise stator 9, rotor permanent magnetic pole 10 etc.Wherein, by hall position sensor, be installed on that a side of stator 9 casings is other forms the signal sampling part in Three-phase electronic commutation circuit with rotor-position permanent magnet poles 12.
Please refer to Figure 1A, a kind of threephase switch reluctance motor and sinusoidal stator four utmost point models, have 24 tooth 24 grooves, and material is high magnetic conduction silicon steel sheet or silicon steel sheet.
24 grooves are divided into eight A phase grooves 6, eight B phase grooves 7, eight C phase grooves 8 and groove area and equate, are embedded with respectively A phase winding 1, B phase winding 2, C phase winding 3 in groove.
24 teeth are divided into 5,12 teeth 4 of 12 teeth and arrange by circle-shaped alternate intervals, and the circular arc distance between tooth 5 tooth bodies and the tooth 4 tooth body axle neutral lines equates, tooth 5 tooth body width are the more than two times or two times of tooth 4 tooth body width.
In this example, the tooth 5 tooth body width of take design for 2.6mm as 7mm, tooth 4 tooth body width.
Between described stator 9 winding iron core magnetic poles and rotor permanent magnetic pole 10, polar arc face air gap 14 is non-homogeneous air gap, is similar in appearance to the air gap changing by sinusoidal rule.Wherein, tooth 5 cambered surfaces in stator 9 are the mechanical configurations cambered surfaces that change by sinusoidal rule, tooth 5 cambered surface air gaps are the sinusoidal gradual change air gap that intermediate air gap is little, two ends air gap is large, that is: take the tooth 5 tooth body axle neutral lines becomes air gap large by sinusoidal rule in two ends to the left and right gradually as line of demarcation along tooth 5 cambered surfaces, and tooth 4 cambered surface air gaps are even air gap and are a bit larger tham tooth 5 cambered surface two ends air gaps.
To be pole span one holding tooth 4, tooth 5, tooth 4 three teeth across four to the embedding method of single coil is a utmost point.
A phase winding 1 is embedded in 6 li of eight A phase grooves and is holding tooth 4, tooth 5, tooth 4 three teeth and form four A phase core magnetic poles 11 and adjacent B phase winding 2 and be embedded in 7 li of eight B phase grooves and holding tooth 4, tooth 5, tooth 4 three teeth and form four B phase core magnetic poles 22 and adjacent C phase winding 3 and be embedded in 8 li of eight C phase grooves and holding tooth 4, tooth 5, four C phase core magnetic poles 33 of tooth 4 three teeth compositions 120 ° of electrical degrees each other on locus.
Four A phase core magnetic poles 11, four B phase core magnetic poles 22, four C phase core magnetic pole 33 polar arc faces are that main, left and right tooth 4 is that auxiliary three teeth rearrange and polar arc face air gap is sinusoidal rule distribution shape by tooth 5 respectively.
The formation of described a kind of three-phase brushless dc motor can have some different number of stator slots and rotor number of poles.
Following table has been listed the corresponding relation of several number of stator slots and rotor number of poles.
| Stator teeth groove number | 6 | 12 | 18 | 24 | 30 | 36 | 42 | 48 |
| Rotor number of poles | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
Not only only have above-mentioned these corresponding relations, the ratio that can also be three times of rotor numbers of poles according to number of stator slots continues to extend the corresponding relation of stator and rotor.
Described stator 9 iron core width of rebate are 2mm to 3mm.
Wherein each adopts multitudinous utmost point formula winding to described stator mutually, adopts respectively method in parallel or series connection to connect into N/N/N/N or tetra-like poles of S/S/S/S.Such as, the polarity of four A phase core magnetic poles 11 is all N/N/N/N or the consistent like pole of S/S/S/S polarity, all the other two-phases the like.
Please refer to Fig. 3, on described stator 9 casings, by there being support 13, establish three Hall element H1, H2, H3 on support 13, radially corresponding with three-phase Hall element is rotor-position permanent magnet poles 12.
Be separated by 30 ° each other of mechanical angles of described Hall element H1, H2, H3 three's the axle neutral line, A phase core magnetic pole 11, B phase core magnetic pole 22, the C phase core magnetic pole 33 axle neutral line orientation of 30 ° are consistent each other with the mechanical angle of being separated by.
Described rotor-position permanent magnet poles 12 and number of pole-pairs coaxial with rotor permanent magnetic pole 10 equate, one utmost point pole span is equal to or less than rotor permanent magnetic pole 10 1 utmost point pole spans and 90 ° of electrical degrees each other on locus.Please refer to Figure 1B.
Described rotor permanent magnetic pole 10 1 utmost point pole spans are (1～0.8) * π D/P.D is rotor circular diameter, and P is rotor number of poles.
Described rotor permanent magnetic pole 10 is circular cambered surface, and magnetic pole is parallel magnetization or radial magnetizing, is shaped as a watt shape, is bonded on rotor core.
In order to reduce cogging torque, conventional two kinds of methods, the oblique or oblique utmost point of rotor permanent magnetic pole 10 of stator 9 teeth groove.
Please refer to Fig. 4, another kind of method is that described stator 9 teeth groove and rotor 10 permanent magnets are oblique, are cross shaped head and skewed slot degree and equate.If when a utmost point polar arc face rotation of rotor permanent magnetic pole 10 one end is extremely intersected with stator 9 one utmost point polar arc face 2 acute angle points, the maximum spacing 15 between the cambered surface of other end the two poles of the earth is two times of above width of rebate.This is as the reference of rotor skewed slot degree.Also will weigh in addition the impact of stator-rotor iron core length on skewed slot degree, length is longer, and its skewed slot degree is less, otherwise larger.
Please refer to Fig. 2, described a kind of three-phase brushless dc motor and sinusoidal stator adopt three-phase H bridge driver closed loop or open loop electronics commutation circuit device to control.
A phase magnetosensitive position transducer is controlled A phase winding 1, and B phase magnetosensitive position transducer is controlled B phase winding 2, and C phase magnetosensitive position transducer is controlled C phase winding 3.
Described here take tooth 5 and as main, left and right tooth 4 as auxiliary three teeth, rearrange a utmost point and with tooth 4, tooth 5, tooth 4 three teeth, rearrange a utmost point and refer to identical concept.
Described a kind of three-phase brushless dc motor and sinusoidal stator are widely used, and versatility is stronger, can be used for the automation control area such as industry, national defence, as servomotor, and electric vehicle motor, various blower fans etc.
It should be noted that: the different motor of various numbers of poles has the Best Point of its work.
It should be noted that: this described embodiment is project optimization of the present invention, but invention is not limited in embodiment, any improvement, replacement or conversion under flesh and blood all belongs to the scope of protection of the invention.
Claims (9)
1. a three-phase brushless dc motor and sinusoidal stator, comprise the three-phase stator core winding of 120 ° of electric angles each other, the electronics such as p-m rotor and position transducer thereof commutation device, it is characterized in that: described rotor is provided with some N/S rotor permanent magnetic pole (10) and rotor-position permanent magnet poles 12 to parallel magnetization or radial magnetizing, described stator (9) has several teeth (5) to arrange by circle-shaped alternate intervals with tooth (4) and tooth (5) tooth body equates with the circular arc distance between tooth (4) the tooth body axle neutral line, some equal groove associations are between tooth (5) and tooth (4) and in impartial groove, be embedded with three phase windings, every phase winding connects into respectively some N/N or S/S utmost point like pole and on pole core, is provided with three-phase position transducer, every utmost point iron core in every phase winding is respectively by tooth (4), tooth (5), tooth (4) three teeth rearrange and polar arc face air gap is sinusoidal rule distribution shape, wherein, every phase winding number of poles is that 1/2nd or stator (9) the groove number of rotor permanent magnetic pole (10) number of poles is three times of rotor permanent magnetic pole (10) number of poles, that is: the stator slot number of teeth and rotor number of poles have following corresponding relation,
2. a kind of three-phase brushless dc motor according to claim 1 and sinusoidal stator, it is characterized in that: three described phase windings are that A phase winding (1) is embedded in the inner tooth (4) that holding of A phase groove (6), tooth (5), tooth (4) three teeth form A phase core magnetic pole (11) and are embedded in the inner tooth (4) that holding of B phase groove (7) with adjacent B phase winding (2), tooth (5), tooth (4) three teeth form B phase core magnetic pole (22) and are embedded in the inner tooth (4) that holding of C phase groove (8) with adjacent C phase winding (3), tooth (5), tooth (4) three teeth form spatially 120 ° of electrical degrees each other of C phase core magnetic poles (33).
3. a kind of three-phase brushless dc motor according to claim 1 and 2 and sinusoidal stator, it is characterized in that: described tooth 5 cambered surfaces are the mechanical configurations cambered surfaces that change by sinusoidal rule, tooth (5) cambered surface air gap is the sinusoidal gradual change air gap that the little two ends of intermediate air gap air gap is large, and tooth (4) cambered surface air gap is even air gap and is a bit larger tham tooth (5) cambered surface two ends air gap.
4. according to a kind of three-phase brushless dc motor and sinusoidal stator described in claim 1 or 2 or 3, it is characterized in that: described tooth (5) tooth body width is the more than two times or two times of tooth (4) tooth body width.
5. a kind of three-phase brushless dc motor according to claim 1 and sinusoidal stator, is characterized in that: described rotor permanent magnetic pole (10) one utmost point pole spans are (1～0.8) * π D/P.
6. a kind of three-phase brushless dc motor according to claim 1 and sinusoidal stator, it is characterized in that: described rotor-position permanent magnet poles 12 and number of pole-pairs coaxial with rotor permanent magnetic pole 10 equate, one utmost point pole span is equal to or less than rotor permanent magnetic pole 10 1 utmost point pole spans and 90 ° of electrical degrees each other on locus.
7. a kind of three-phase brushless dc motor according to claim 1 and sinusoidal stator, is characterized in that: described stator (9) teeth groove and rotor permanent magnetic pole (10), for oblique, be cross shaped head and skewed slot degree and equate.
8. a kind of three-phase brushless dc motor according to claim 1 and 2 and sinusoidal stator, is characterized in that: three described phase windings are multitudinous utmost point formula winding, and every phase winding connects into respectively the like pole that polarity is consistent, that is: some N/N utmost points or some S/S utmost points.
9. a kind of three-phase brushless dc motor according to claim 1 and sinusoidal stator, it is characterized in that: described three-phase position transducer is hall position sensor H1, H2, H3,120 ° of electrical degrees each other on locus, its hall position sensor H1, H2, the H3 axle neutral line and locus each other A phase core magnetic pole (11), the B phase core magnetic pole (22) of 120 ° of electrical degrees, the axle neutral line orientation of C phase core magnetic pole (33) is consistent.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326325.9A CN104092345A (en) | 2014-07-08 | 2014-07-08 | Three-phase brushless direct current motor and sine stator |
| CN201420744756.2U CN204258453U (en) | 2014-07-08 | 2014-12-02 | A kind of stator and accordingly brshless DC motor and three-phase switch reluctance machine |
| CN201410719607.5A CN104410177B (en) | 2014-07-08 | 2014-12-02 | A kind of stator and its corresponding brshless DC motor and three-phase switch reluctance machine |
| PCT/CN2015/082402 WO2016004823A1 (en) | 2014-07-08 | 2015-06-25 | Stator, brushless direct current motor, three-phase switch reluctance motor and shaded pole motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326325.9A CN104092345A (en) | 2014-07-08 | 2014-07-08 | Three-phase brushless direct current motor and sine stator |
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| CN104092345A true CN104092345A (en) | 2014-10-08 |
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| CN201410326325.9A Pending CN104092345A (en) | 2014-07-08 | 2014-07-08 | Three-phase brushless direct current motor and sine stator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753289A (en) * | 2015-03-19 | 2015-07-01 | 广东威灵电机制造有限公司 | Motor |
| WO2016004823A1 (en) * | 2014-07-08 | 2016-01-14 | 顾明 | Stator, brushless direct current motor, three-phase switch reluctance motor and shaded pole motor |
| CN107534326A (en) * | 2015-06-17 | 2018-01-02 | 三菱电机株式会社 | Permasyn morot |
-
2014
- 2014-07-08 CN CN201410326325.9A patent/CN104092345A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016004823A1 (en) * | 2014-07-08 | 2016-01-14 | 顾明 | Stator, brushless direct current motor, three-phase switch reluctance motor and shaded pole motor |
| CN104753289A (en) * | 2015-03-19 | 2015-07-01 | 广东威灵电机制造有限公司 | Motor |
| CN107534326A (en) * | 2015-06-17 | 2018-01-02 | 三菱电机株式会社 | Permasyn morot |
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Application publication date: 20141008 |