CN104079085A - Motor and sine stator - Google Patents
Motor and sine stator Download PDFInfo
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- CN104079085A CN104079085A CN201410326324.4A CN201410326324A CN104079085A CN 104079085 A CN104079085 A CN 104079085A CN 201410326324 A CN201410326324 A CN 201410326324A CN 104079085 A CN104079085 A CN 104079085A
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Abstract
The invention relates to a single phase or three phases including an alternating current synchronous motor stator, an alternating current asynchronous motor stator and the like, in particular to a motor and a sine stator. A plurality of teeth 5 and a plurality of teeth 4 are circumferentially arranged at intervals, the width of bodies of the teeth 5 is larger than that of bodies of the teeth 4 by two or more times, the motor sine stator is formed by arranging the teeth 5 serving as the main parts and the left and right teeth 4 serving as the auxiliary parts, three-tooth pole cambered surface air gaps are distributed according to the sine law, but the total cross section of an iron core is kept unchangeable, the polar distance becomes short, the end of a stator coil becomes short, the resistance of the coil is small, the loss is reduced, motor output and efficiency are increased, wire rods are saved, and wire inserting and connecting are easy to conduct in a labor saving mode. Thus, the effect of five harmonics, seven harmonics and other harmonic magnetic potentials on the motor is further reduced, the performance and the torque of the motor are improved, and the motor sine stator has good energy saving and emission reducing effects.
Description
Technical field
This technology relates to alternating current machine field, especially ac synchronous motor, AC induction motor stator.
Background technology
In current AC single phase motor, relate to the stators such as single phase alternating current (A.C.) synchronous machine, single-phase alternating current asynchronous machine, its motor stator has same entity, and rotor comprises winding-type, mouse-cage type, permanent-magnet type etc.Impartial groove and tooth are distributing respectively in its motor stator core circle, in groove, place two-phase symmetric winding, its general principle is in the stator core slot of equal distribution, to be embedded with spatially the two-phase winding of 90 ° of electrical degrees each other in circle, when energising, wherein one make to produce two-phase rotating magnetic field on stator core by electric capacity, rotor driven rotates.
In current three phase alternating current motor, relate to three-phase ac synchronous motor, ac three-phase asynchronous motor etc., its motor stator structure has same entity, and rotor comprises winding-type, mouse-cage type, permanent-magnet type etc., impartial groove and tooth are distributing respectively in its motor stator core circle, in groove, place three-phase symmetric winding, its general principle is in the stator core slot of equal distribution, to be embedded with spatially the three-phase coil of 120 ° of electrical degrees each other in circle, when energising, make to produce three phase rotating field on stator core, rotor driven rotates.
Electric machine designer tries hard to harmonic carcellation magnetic potential to be used as important content design in the time of design motor.At present the technology main manifestations of harmonic carcellation magnetic potential is stator, rotor winding: comprise on single, double stacked winding, concentric distributed winding, the distributed winding of fractional-slot or rotor core shape is sinusoidal shape, object makes air gap electromotive force ripple be sinusoidal shape.Although eliminate a certain amount of harmonic magnetic potential in the time adopting the distributed winding of above-mentioned correspondence, also bring that groove tooth is more, increases of slot ripples amount, wire winding complexity, end winding is long, magnetic flux leakage increases and resistance reactance increases the impact that electric efficiency, power, torque is produced to decline.And that micromachine often operates in the time implementing distributed winding technical scheme is more difficult.Here it is, and micromachine power factor (PF) is put forward not high reason.
Summary of the invention
For existing motor Shortcomings, the invention provides the sinusoidal stator technical scheme of a kind of motor, by changing motor stator core arc shape, make that pole span shortens, polar arc face air gap distributes similar in appearance to being sinusoidal rule changes shape, after energising, magnetic potential of air gap forms similar in appearance to sine wave, thereby torque and the electric property, the particularly requirement of micro ac motor offset of sinusoidal magnetic potential ripple that have improved single-phase or three phase alternating current motor in stator core machinery aspect more can be accomplished.This kind of technical scheme has while can be applicable to switch in the alternating-current motor stator that produces rotating magnetic field feature.
Please refer to Fig. 1, a kind of motor and sinusoidal stator, 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 each tooth 5 tooth bodies with tooth 4, some groove associations between several teeth 5, tooth 4 and groove area equate, tooth 5 tooth body width are the more than two times or two times of tooth 4 tooth body width.
Because the watt level of motor is different, tooth 5 tooth body width, tooth 4 tooth body width are just determined according to power of motor size shape.
Between stator 9 winding iron core magnetic poles in the technical program and rotor 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 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 the little two ends of intermediate air gap air gap is large, that is: gradually air gap is become to large by sinusoidal rule in two ends taking the tooth 5 tooth body axle neutral lines to the left and right as line of demarcation along tooth 5 cambered surfaces, tooth 4 cambered surface air gaps are even air gap and are a bit larger tham tooth 5 cambered surface two ends air gaps.
The embedding method of single coil is that pole span one is holding taking tooth 4, tooth 5, tooth 4 three teeth as a utmost point across four, one mutually in some single coils connect into a phase winding, every phase winding connects into respectively some to the polar-symmetric magnetic pole of N/S, and every every utmost point iron core in is mutually 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.
Described a kind of motor and sinusoidal stator can be internal stator or external stator.
Described a kind of motor and sinusoidal stator profile can be square or circular.
Described a kind of motor and sinusoidal stator can be single-phase stator or threephase stator.
Please refer to Fig. 2, described a kind of motor and sinusoidal stator are single-phase, 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 each tooth 5 tooth bodies with tooth 4, some A phase grooves 6, 7 associations of B phase groove are in several teeth 5, between tooth 4 and groove area equate, tooth 5 tooth body width are the more than two times or two times of tooth 4 tooth body width, every every utmost point iron core in is mutually main by tooth 5 respectively, left and right tooth 4 is that auxiliary three teeth rearrange 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 tooth composition A phase core magnetic poles 11 are embedded in 7 li of B phase grooves with adjacent B phase winding 2 and are holding tooth 4, tooth 5, tooth 4 three teeth compositions B phase core magnetic poles 22 and on locus 90 ° of electrical degrees each other.
Described a kind of motor and sinusoidal stator are single-phase, are wound with excitation winding or permanent magnet on rotor wherein, are single phase alternating current (A.C.) synchronous machine.Single phase alternating current (A.C.) synchronous machine can be used as single-phase AC motor, also can be used as single-phase alternator use.
Described a kind of motor and sinusoidal stator are single-phase, and rotor is wherein squirrel-cage, are single phase alternating current (A.C.) asynchronous induction machine.
Load motor generally need to just have staring torque with electric capacity phase-splitting.
Please refer to Fig. 3, described a kind of motor and sinusoidal stator are three-phase, 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 each tooth 5 tooth bodies with tooth 4, some A phase grooves 6, B phase groove 7,8 associations of C phase groove between several teeth 5, tooth 4 and groove area equate, tooth 5 tooth body width are the more than two times or two times of tooth 4 tooth body width, and every every utmost point iron core in is mutually 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.
A phase winding 1 is embedded in 6 li of A phase grooves and is holding tooth 4, tooth 5, tooth 4 three teeth composition 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 composition B phase core magnetic poles 22 and adjacent C phase winding 3 and be embedded in respectively 8 li of C phase grooves and holding tooth 4, tooth 5, tooth 4 three teeth and form C phase core magnetic poles 33 120 ° of electrical degrees each other on locus.
Described a kind of motor and sinusoidal stator are three-phase, are wound with excitation winding or permanent magnet on rotor wherein, are three-phase ac synchronous motor.Three-phase ac synchronous motor can be used as three-phase alternating-current motor, also can be used as threephase alternator use.
Described a kind of motor and sinusoidal stator are three-phase, and rotor is wherein squirrel-cage, are phase asynchronous induction machine.
In the described a kind of motor and sinusoidal stator that comprise single-phase or three-phase, 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 when coil electricity is also close to sinusoidal waveform.Increase tooth 5 tooth bodies, dwindle tooth 4 tooth body width, on the one hand 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 only three teeth of the number of teeth of composition stator one utmost point, from motor on the whole, the stator slot number of teeth is fewer, and groove tooth utilance increases, and teeth groove harmonic content is just fewer, and loss will further reduce; On the other hand, the groove number of rotor is by corresponding minimizing, and the copper in rotor or aluminium sectional area just can increase, and rotor resistance reduces.From certain meaning, save the energy.
Adopt a kind of motor and the sinusoidal stator technical scheme advantage of single-phase or three-phase to be: 1. every mutually every utmost point is taking tooth 5 as main, left and right tooth 4 as auxiliary three teeth rearrange and mechanical polar arc face air gap is sinusoidal rule distribution shape, there is good sinusoidal wave mmf wave, than the existing single-phase or three phase electric machine of same specification, the groove number of teeth reduces relatively, and the minimizing of the groove number of teeth will reduce tooth portion harmonic wave electromotive force and improve copper factor; Adopting tooth 5 tooth body width is the more than two times or two times of tooth 4 tooth body width, makes an extremely total iron core magnetic close constant and pole span shortens, and stator coil end length diminishes relatively, and coil resistance is little, loss reduces, and motor is exerted oneself, efficiency increases.Therefore, the impact of the additional moment that basic elimination 5 times, 7 times and other harmonic magnetic potential produce on motor, not only saved wire rod but also rule, wiring is simply laborsaving, performance, the torque of motor are improved, there is good effects of energy saving and emission reduction, especially on micromachine implement more simple and convenient, act on larger, better effects if.2. coil rule is simple, can use coil inserting apparatus embed wholly, reduces manual operation intensity.
Brief description of the drawings
Fig. 1 is a kind of motor and sinusoidal stator deployed configuration schematic diagram.
Fig. 2 is that a kind of motor and sinusoidal stator single-phase capacitance start quaternary structure principle, embodiment schematic diagram.
Fig. 3 is a kind of motor and sinusoidal stator three-phase and quadrupole structural principle, embodiment schematic diagram.
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, the 11st, A phase core magnetic pole, the 12nd, air gap, the 22nd, B phase core magnetic pole, the 33rd, C phase core magnetic pole.
Embodiment (one)
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Please refer to Fig. 2, a kind of motor and sinusoidal stator are single-phase, and number of magnetic poles is four utmost points, have 16 tooth 16 grooves, and material is high magnetic conduction silicon steel sheet or silicon steel sheet.
16 grooves are divided into eight A phase grooves 6, eight B phase grooves 7 and groove area and equate, are embedded with respectively A phase winding 1, B phase winding 2 in groove.
16 teeth are divided into eight teeth 5, eight teeth 4 are arranged by circle-shaped alternate intervals, and the circular arc distance between each 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, taking tooth 5 tooth body width as 8mm, tooth 4 tooth body width design for 3mm.
Polar arc face air gap 14 between described stator 9 winding iron core magnetic poles and rotor 10 is non-homogeneous air gap, is similar in appearance to the air gap changing by sinusoidal rule.Wherein, tooth 5 cambered surfaces are the mechanical configurations cambered surfaces that change by sinusoidal rule, and tooth 5 cambered surface air gaps are sinusoidal gradual change air gap, and that is: intermediate air gap minimum, two ends air gap maximum become large by air gap in two ends taking tooth 5 tooth body axis as line of demarcation along tooth 5 cambered surfaces to the left and right gradually; Tooth 4 cambered surface air gaps are even air gap, slightly larger than tooth 5 cambered surface air gaps.
The embedding method of single coil is that pole span one is holding taking tooth 4, tooth 5, tooth 4 three teeth as a utmost point across four, and four single coils connect into a phase winding, and every phase winding connects into respectively symmetrical N/S/N/S magnetic pole.
A phase winding 1 is embedded in 6 li of eight A phase grooves and is holding four A phase core magnetic poles 11 of tooth 4, tooth 5, tooth 4 three teeth compositions 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 22,90 ° of electrical degrees each other on locus.
Four A phase core magnetic poles 11, four B phase core magnetic pole 22 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.
Described a kind of motor and sinusoidal stator are single-phase, wherein, rotor can be squirrel-cage or permanent-magnet formula or excitation Wound-rotor type any one.
Adopt this kind of technical scheme, can also make single-phase: 8 groove two utmost point alternating current machines, 24 groove sextupole alternating current machines, 32 groove ends of the earth alternating current asynchronous, synchronous machine etc.
Embodiment (two)
Please refer to Fig. 3, a kind of motor and sinusoidal stator are three-phase, and number of magnetic poles is four utmost points, 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 between each tooth 5 tooth bodies and the tooth 4 tooth body axle neutral lines is apart from equating, tooth 5 tooth body width are the more than two times or two times of tooth 4 tooth body width.
In this example, taking tooth 5 tooth body width as 6mm, tooth 4 tooth body width design for 2.6mm.
Every utmost point polar arc face air gap 14 between described stator 9 and rotor 10 is non-homogeneous air gap, is similar in appearance to the air gap changing by sinusoidal rule.Wherein, tooth 5 cambered surfaces are the mechanical configurations cambered surfaces that change by sinusoidal rule, and tooth 5 cambered surface air gaps are sinusoidal gradual change air gap, and that is: intermediate air gap minimum, two ends air gap maximum become large by air gap in two ends taking tooth 5 tooth body axis as line of demarcation along tooth 5 cambered surfaces to the left and right gradually; Tooth 4 cambered surface air gaps are even air gap, slightly larger than tooth 5 cambered surface air gaps.
The embedding method of single coil is that pole span one is holding taking tooth 4, tooth 5, tooth 4 three teeth as a utmost point across four, and four single coils connect into a phase winding, and every phase winding connects into respectively symmetrical N/S/N/S magnetic pole.
A phase winding 1 is embedded in 6 li of eight A phase grooves and is holding four A phase core magnetic poles 11 of tooth 4, tooth 5, tooth 4 three teeth compositions 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 composition 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, tooth 4 three teeth and form four C phase core magnetic poles 33,120 ° 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.
Described a kind of motor and sinusoidal stator are three-phase, wherein, rotor can be squirrel-cage or permanent-magnet formula or excitation Wound-rotor type any one.
Described here refers to identical concept taking tooth 5 as main, left and right tooth 4 as auxiliary three teeth rearrange a utmost point and rearrange a utmost point with tooth 4, tooth 5, tooth 4 three teeth.
Adopt this kind of technical scheme, can also make three-phase: 12 groove two utmost point alternating current machines, 36 groove sextupole alternating current machines, 48 groove ends of the earth alternating current asynchronous, synchronous machine etc.
Described a kind of motor and sinusoidal stator, comprise single-phase, three-phase, can be widely used in the power set, electrical control of various device.Such as various alternating current motors, alternating current generator for power set, AC servo motor etc. for electrical control.
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 of the present invention all belongs to the scope of protection of the invention.
Claims (5)
1. a motor and sinusoidal stator, comprise stator and rotor, there are several impartial teeth and association groove and in groove, are embedded with two-phase or three phase windings, it is characterized in that: described stator (9) is that several teeth (5) equate by the circular arc distance between circle-shaped alternate intervals arrangement and tooth (5) tooth body and tooth (4) the tooth body axle neutral line with tooth (4), some equal groove associations are between tooth (5) and tooth (4) and in impartial groove, be embedded with two-phase or three phase windings, every phase winding connects into respectively the polar-symmetric magnetic pole of some N/S, 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, described rotor (10) is squirrel-cage or permanent-magnet formula or field winding type.
2. a kind of motor according to claim 1 and sinusoidal stator, is characterized in that: described two-phase winding is that A phase winding (1) is embedded in inner tooth (4), tooth (5), tooth (4) three teeth composition A phase core magnetic poles (11) and the adjacent B phase winding (2) of holding of A phase groove (6) and is embedded in the inner tooth (4), tooth (5), tooth (4) three teeth of holding of B phase groove (7) and forms B phase core magnetic poles (22) 90 ° of electrical degrees each other in phase place.
3. a kind of 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 tooth composition A phase core magnetic poles (11) 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 tooth composition B phase core magnetic poles (22) 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 compositions C phase core magnetic poles (33) 120 ° of electrical degrees each other in phase place.
4. according to a kind of motor and sinusoidal stator described in claim 1 or 2 or 3, it is characterized in that: described tooth (5) cambered surface is the mechanical configurations cambered surface changing by sinusoidal rule, tooth (5) cambered surface air gap is the sinusoidal gradual change air gap that intermediate air gap is little, two ends 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.
5. according to a kind of motor and sinusoidal stator described in claim 1 or 2 or 3 or 4, 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.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326324.4A CN104079085A (en) | 2014-07-08 | 2014-07-08 | Motor and sine stator |
| 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 |
| 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 |
| 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 |
|---|---|---|---|
| CN201410326324.4A CN104079085A (en) | 2014-07-08 | 2014-07-08 | Motor and sine stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104079085A true CN104079085A (en) | 2014-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410326324.4A Pending CN104079085A (en) | 2014-07-08 | 2014-07-08 | Motor and sine stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104079085A (en) |
Cited By (5)
| 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 |
| CN106208428A (en) * | 2015-05-27 | 2016-12-07 | 德昌电机(深圳)有限公司 | Motor core and preparation method thereof |
| CN106300752A (en) * | 2016-09-08 | 2017-01-04 | 广东工业大学 | A kind of the copper factor three-phase double-layer overlapped method around sine windings such as determine |
| CN107681800A (en) * | 2017-10-31 | 2018-02-09 | 上海电气风电集团有限公司 | A kind of machine winding |
| CN108206595A (en) * | 2016-12-20 | 2018-06-26 | 郑州宇通客车股份有限公司 | A kind of permanent magnet motor stator and magneto |
-
2014
- 2014-07-08 CN CN201410326324.4A patent/CN104079085A/en active Pending
Cited By (7)
| 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 |
| CN106208428A (en) * | 2015-05-27 | 2016-12-07 | 德昌电机(深圳)有限公司 | Motor core and preparation method thereof |
| CN106300752A (en) * | 2016-09-08 | 2017-01-04 | 广东工业大学 | A kind of the copper factor three-phase double-layer overlapped method around sine windings such as determine |
| CN106300752B (en) * | 2016-09-08 | 2018-11-02 | 广东工业大学 | A kind of method of the copper factors three-phase double-layer overlappeds such as determination around sine windings |
| CN108206595A (en) * | 2016-12-20 | 2018-06-26 | 郑州宇通客车股份有限公司 | A kind of permanent magnet motor stator and magneto |
| CN108206595B (en) * | 2016-12-20 | 2023-08-11 | 宇通客车股份有限公司 | Permanent magnet motor |
| CN107681800A (en) * | 2017-10-31 | 2018-02-09 | 上海电气风电集团有限公司 | A kind of machine winding |
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Application publication date: 20141001 |