CN206135568U - Built -in permanent magnetism damping, synchronous machine that makes an uproar falls - Google Patents
Built -in permanent magnetism damping, synchronous machine that makes an uproar falls Download PDFInfo
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- CN206135568U CN206135568U CN201621223499.3U CN201621223499U CN206135568U CN 206135568 U CN206135568 U CN 206135568U CN 201621223499 U CN201621223499 U CN 201621223499U CN 206135568 U CN206135568 U CN 206135568U
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- half tooth
- tooth
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- stator
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Built -in permanent magnetism damping, synchronous machine that makes an uproar falls relates to the motor damping, falls the field of making an uproar. The vibration and the noise that have effectively restrained current built -in PMSM. The shipside delivery supplies two sets of schemes, and just two sets of schemes are improved the tooth portion on the stator, and every tooth portion is divided into half preceding tooth, later half tooth, scheme no. 1: the radian of the tooth top circular arc of half preceding tooth and the tooth top circular arc of later half tooth is different. Scheme no. 2: there is the saltus step in the radial height of half preceding tooth and later half tooth juncture. The central point of every tooth portion put correspond the air gap the width be greater than the width of every tooth portion air gap that arbitrary one end corresponds. The utility model discloses the mainly used motor drive field.
Description
Technical field
The utility model is related to motor vibration damping, noise reduction field.
Background technology
Energy problem is one of Important Problems that current countries in the world pay attention in again.China has released one after another a series of policies
The use advocated energetically and promote new forms of energy with measure.Some high-quality performances that magneto is possessed, no matter from volume,
In performance, still taking cost into account, certain superiority is all highlighted, therefore it is favored by all trades and professions further.Closely
In the past few years, used as a kind of novel energy conversion equipment, controllability is good, speed-regulating range width, simple structure, power density for magneto
It is high, reliable and stable, the military equipments such as Aero-Space, naval vessels ship are not only widely applied to, while also continually throwing further
Enter in the middle of the civil equipments such as automobile, household electrical appliances, medical treatment, traffic.
Either it is used on military or civilian, magneto is the same with the motor of other traditional types, runs at it
Vibration and noise can be all produced in journey.For military equipment, these vibrations and noise can significantly cut down its disguised and peace
Quan Xing, for civil equipment, influences whether the comfortableness and durability of equipment again, while can also affect its work people nearby
The operating efficiency and healthy of member.
Therefore the vibration and noise reducing of magneto is had great importance always in terms of motor research.For permanent-magnet synchronous
The noise of motor is mainly caused by electric and magnetic oscillation, and radial electromagnetic force is the main cause for causing vibration, so reducing electromagnetism
Power can effectively suppress vibration and the noise of motor.
Utility model content
The utility model is in order to effectively suppress the vibration noise problem of existing built-in permagnetic synchronous motor, there is provided in a kind of
Put formula permanent magnet vibration damping, noise reduction synchronous motor.
This kind of built-in type permanent-magnet synchronization noise reduction motor includes the following two kinds scheme：
Scheme one：
Built-in type permanent-magnet vibration damping, noise reduction synchronous motor, it includes stator and rotor, stator sleeve in the outside of rotor, the two
Coaxially, and there is air gap therebetween, the addendum circle arc corresponding to each teeth portion on stator, with the radial centre lines of its teeth portion
For boundary, two parts are divided into, and the position corresponding to two parts addendum circle arc is respectively defined as：First half tooth and later half tooth, first half
Tooth, later half tooth are arranged in the counterclockwise direction successively, and the addendum circle arc of first half tooth is different with the radian of the addendum circle arc of later half tooth.
When the direction of rotation of rotor is counter clockwise direction, the radian of the addendum circle arc of first half tooth is more than the tooth top of later half tooth
The radian of circular arc.
When the direction of rotation of rotor is clockwise direction, the radian of the addendum circle arc of first half tooth is less than the tooth top of later half tooth
The radian of circular arc.
Described internal rotor is circumferentially arranged multiple permanent magnet troughs, the corresponding position in two ends of permanent magnet trough be every
Magnetic bridge, opens up fluted every the rotor lateral wall corresponding to magnetic bridge.
Scheme two：
Built-in type permanent-magnet vibration damping, noise reduction synchronous motor, it includes stator and rotor, stator sleeve in the outside of rotor, the two
Coaxially, and there is air gap therebetween, each teeth portion on stator includes first half tooth and later half tooth, and first half tooth, later half tooth are successively
Arrange in the counterclockwise direction, and there is saltus step in the radial height of first half tooth and later half tooth intersection.
The width of air gap corresponding to the center of each described teeth portion is more than gas corresponding to any one end of each teeth portion
The width of gap.
Described internal rotor is circumferentially arranged multiple permanent magnet troughs, the corresponding position in two ends of permanent magnet trough be every
Magnetic bridge, opens up fluted every the rotor lateral wall corresponding to magnetic bridge.
The beneficial effect that the utility model brings is to improve radial electromagnetic force suffered by stator tooth.On the one hand footpath is reduced
To the amplitude of electromagnetic force, the electric and magnetic oscillation and noise of motor are reduced；On the other hand stator tooth uniform force is made, before reducing,
The probability of later half tooth unbalance stress.The vibration noise of motor is effectively reduced on the whole.
The utility model proposes rotor notching construction design, plant mode of grooving can suppress permanent magnet brow leakage, improve
Main flux utilization rate.And avoid to the optimization process every magnetic bridge shape itself, simpler convenience.
The utility model proposes two kinds of optimization design structures to stator teeth, without being slotted to stator tooth
In the case of, you can the vibration noise of motor is reduced, groove is backed down with stator tooth and has been reached identical effect of optimization, effectively reduced
Cogging torque.It is simpler feasible during reality processing.
The utility model proposes two kinds of optimization design structures to stator teeth in, due to the tooth top line position after optimization
Deviate original sub- tooth top line position, it actually also form a kind of non-homogeneous gap structure, can improve air-gap field waveform,
Slot ripples content is reduced, the torque pulsation of motor is reduced.
Description of the drawings
Fig. 1 is the three dimensional structure diagram of internal permanent magnet synchronous motor in prior art；
Fig. 2 is the two-dimensional structure schematic diagram of Fig. 1；
Fig. 3 is the two-dimensional structure schematic diagram of the built-in type permanent-magnet noise reduction synchronous motor described in specific embodiment one；
Fig. 4 is in Fig. 3 III partial enlarged drawing；
Fig. 5 is the two-dimensional structure schematic diagram of the built-in type permanent-magnet noise reduction synchronous motor described in specific embodiment five；
Fig. 6 is in Fig. 3 II partial enlarged drawing；
Fig. 7 is the three dimensional structure diagram of rotor；
Fig. 8 is the two-dimensional structure schematic diagram of rotor.
Specific embodiment
Specific embodiment one：Referring to Fig. 3 and Fig. 4 explanation present embodiments, the built-in type permanent-magnet described in present embodiment
Vibration damping, noise reduction synchronous motor, it includes stator 1 and rotor 2, and stator 1 is enclosed within the outside of rotor 2, and the two is coaxial, and therebetween
There is air gap, the addendum circle arc corresponding to each teeth portion 1-1 on stator 1, the radial centre lines with its teeth portion 1-1 are drawn as boundary
It is divided into two parts, and the position corresponding to two parts addendum circle arc is respectively defined as：First half tooth 1-1-1 and later half tooth 1-1-2, it is front
Half tooth 1-1-1, later half tooth 1-1-2 arrange in the counterclockwise direction successively, the addendum circle arc of first half tooth 1-1-1 and later half tooth 1-1-2
Addendum circle arc radian it is different.
Present embodiment, built-in type permanent-magnet vibration damping described in the utility model, noise reduction synchronous motor mainly include stator 1 and turn
Son 2, wherein the structure for optimizing has stator teeth 1-1, by each teeth portion 1-1 of internal permanent magnet synchronous motor of the prior art
Corresponding addendum circle arc, is divided into two parts, and the position corresponding to two parts addendum circle arc is respectively defined as：First half tooth 1-
1-1 and later half tooth 1-1-2, the addendum circle arc of first half tooth 1-1-1 is different with the radian of the addendum circle arc of later half tooth 1-1-2 so as to
Reduce the stress of each teeth portion 1-1, reduce the stress of motor, mitigate motor oscillating, so as to carry out noise reduction, and existing skill to motor
Internal permanent magnet synchronous motor in art is referring specifically to Fig. 1 and Fig. 2.
The size of gaps that the utility model changes under stator tooth can change magnetic resistance size in the region, to reduce stator tooth
Suffered radial electromagnetic force size and improve its distribution situation, reach the effect for suppressing vibration noise
Specific embodiment two：Referring to Fig. 3 and Fig. 4 explanation present embodiments, present embodiment and specific embodiment one
The difference of described built-in type permanent-magnet noise reduction synchronous motor is, when the direction of rotation of rotor 2 is counter clockwise direction, first half tooth
The radian of addendum circle arc of the radian of the addendum circle arc of 1-1-1 more than later half tooth 1-1-2.
In present embodiment, when rotor 2 direction of rotation (i.e.：The positive direction of magnetic field rotating) for counter clockwise direction when, edge
The direction, in each teeth portion 1-1 on stator, always first half tooth 1-1-1 first contacts magnetic field, therefore when magnetic field turns over the one of stator
During individual teeth portion 1-1, the first half tooth 1-1-1 of the stator is more than later half tooth 1-1-2 by the time of air gap magnetic fields, therefore by first half
The radian of the addendum circle arc of tooth 1-1-1 is designed to the radian of the addendum circle arc more than later half tooth 1-1-2, reduces first half tooth 1-1-1
Stress, so as to carry out noise reduction, vibration damping to motor.
Specific embodiment three：Present embodiment and the built-in type permanent-magnet noise reduction synchronous motor described in specific embodiment one
Difference be, when rotor 2 direction of rotation be clockwise direction when, after the radian of the addendum circle arc of first half tooth 1-1-1 is less than
The radian of the addendum circle arc of half tooth 1-1-2.
In present embodiment, when rotor 2 direction of rotation (i.e.：The positive direction of magnetic field rotating) for clockwise direction when, edge
The direction, in each teeth portion 1-1 on stator, always later half tooth 1-1-2 first contacts magnetic field, therefore when magnetic field turns over the one of stator
During individual teeth portion 1-1, the later half tooth 1-1-2 of the stator is more than first half tooth 1-1-1 by the time of air gap magnetic fields, therefore will be later half
The radian of the addendum circle arc of tooth 1-1-2 is designed to the radian of the addendum circle arc more than first half tooth 1-1-1, reduces later half tooth 1-1-2
Stress, so as to carry out noise reduction, vibration damping to motor.
Specific embodiment four：Present embodiment, present embodiment and concrete reality are illustrated referring to Fig. 3, Fig. 4, Fig. 7 and Fig. 8
The difference for applying the built-in type permanent-magnet noise reduction synchronous motor described in mode one, two or three is circumferentially to set inside described rotor 2
Multiple permanent magnet troughs 2-1 are equipped with, the corresponding position in two ends of permanent magnet trough 2-1 is every magnetic bridge, every the rotor 2 corresponding to magnetic bridge
Lateral wall opens up fluted 2-2.
Present embodiment, on the corresponding lateral wall of rotor 2, opens up fluted 2-2, and groove 2-2 shapes can be semicircle
Groove or half elliptic groove, this mode of grooving can suppress permanent magnet brow leakage, improve main flux utilization rate.
Because groove 2-2 affects, air gap is also in non-homogeneous point under each teeth portion 1-1 on the stator 1 along rotating square
Cloth, the size of gaps of each teeth portion 1-1 on stator 1 can change magnetic resistance size in the region, to reduce footpath suffered by stator tooth
To electromagnetic force size and improve its distribution situation, reach the effect for suppressing vibration noise.Rotor structure is optimized simultaneously, it is right
On two ends of magnetic bridge, the corresponding lateral wall of rotor 2, fluted 2-2 is opened up, reduced every magnetic bridge width to increase every magnetic
The magnetic saturation degree of bridge, makes the magnetic resistance increase of magnetic bridge position, and permanent magnet brow leakage is limited with this, improves the utilization of main flux
Rate, keeps motor magnetic property and output torque constant, and reduces the torque ripple of motor.
Specific embodiment five：Referring to Fig. 5 and Fig. 6 explanation present embodiments, the built-in type permanent-magnet described in present embodiment
The difference of noise reduction synchronous motor is that it includes stator 1 and rotor 2, and stator 1 is enclosed within the outside of rotor 2, and the two is coaxial, and two
There is air gap between person, each teeth portion 1-1 on stator 1 include first half tooth 1-1-1 and later half tooth 1-1-2, first half tooth 1-1-1,
Later half tooth 1-1-2 arranges in the counterclockwise direction successively, and the radial height of first half tooth 1-1-1 and later half tooth 1-1-2 intersections is deposited
In saltus step.
Present embodiment, in prior art, the air gap corresponding to each teeth portion 1-1 is uniform so that each teeth portion
The diverse location stress on 1-1 tops is different, and the utility model will have gradient between first half tooth 1-1-1 and later half tooth 1-1-2, from
And change each teeth portion 1-1 on stator 1, the stress of the crossover position between first half tooth 1-1-1 and later half tooth 1-1-2.
There is saltus step in the radial height of first half tooth 1-1-1 and later half tooth 1-1-2 intersections, saltus step height can be according to teeth portion 1-
1 size reasonable is arranged.
Specific embodiment six：Referring to Fig. 5 and Fig. 6 explanation present embodiments, present embodiment and specific embodiment five
The difference of described built-in type permanent-magnet noise reduction synchronous motor is, air gap corresponding to the center of described each teeth portion 1-1
Width more than air gap corresponding to any one end of each teeth portion 1-1 width.
Specific embodiment seven：Referring to Fig. 7 and Fig. 8 explanation present embodiments, present embodiment and specific embodiment five
Or the difference of the built-in type permanent-magnet noise reduction synchronous motor described in six is, the inside of described rotor 2 is circumferentially arranged have it is multiple forever
Magnet slot 2-1, the corresponding position in two ends of permanent magnet trough 2-1 is, every magnetic bridge, to open up every the lateral wall of rotor 2 corresponding to magnetic bridge
Fluted 2-2.
Present embodiment, on the corresponding lateral wall of rotor 2, opens up fluted 2-2, and groove 2-2 shapes can be semicircle
Groove or half elliptic groove, this mode of grooving can suppress permanent magnet brow leakage, improve main flux utilization rate.
Because groove 2-2 affects, air gap is also in non-homogeneous point under each teeth portion 1-1 on the stator 1 along rotating square
Cloth, the size of gaps of each teeth portion 1-1 on stator 1 can change magnetic resistance size in the region, to reduce footpath suffered by stator tooth
To electromagnetic force size and improve its distribution situation, reach the effect for suppressing vibration noise.Rotor structure is optimized simultaneously, it is right
On two ends of magnetic bridge, the corresponding lateral wall of rotor 2, fluted 2-2 is opened up, reduced every magnetic bridge width to increase every magnetic
The magnetic saturation degree of bridge, makes the magnetic resistance increase of magnetic bridge position, and permanent magnet brow leakage is limited with this, improves the utilization of main flux
Rate, keeps motor magnetic property and output torque constant, and reduces the torque ripple of motor.
Claims (7)
1. built-in type permanent-magnet vibration damping, noise reduction synchronous motor, it includes stator (1) and rotor (2), and stator (1) is enclosed within rotor (2)
Outside, the two is coaxial, and there is air gap therebetween, it is characterised in that corresponding to each teeth portion (1-1) on stator (1)
Addendum circle arc, the radial centre lines with its teeth portion (1-1) are divided into two parts as boundary, and corresponding to two parts addendum circle arc
Position is respectively defined as：First half tooth (1-1-1) and later half tooth (1-1-2), first half tooth (1-1-1), later half tooth (1-1-2) edge successively
Counterclockwise arrange, the addendum circle arc of first half tooth (1-1-1) is different with the radian of the addendum circle arc of later half tooth (1-1-2).
2. built-in type permanent-magnet vibration damping according to claim 1, noise reduction synchronous motor, it is characterised in that when the rotation of rotor (2)
Turn direction for counter clockwise direction when, the addendum circle arc of the radian of the addendum circle arc of first half tooth (1-1-1) more than later half tooth (1-1-2)
Radian.
3. built-in type permanent-magnet vibration damping according to claim 1, noise reduction synchronous motor, it is characterised in that when the rotation of rotor (2)
Turn direction for clockwise direction when, the addendum circle arc of the radian of the addendum circle arc of first half tooth (1-1-1) less than later half tooth (1-1-2)
Radian.
4. built-in type permanent-magnet vibration damping according to claim 1,2 or 3, noise reduction synchronous motor, it is characterised in that described turns
Sub (2) inside is circumferentially arranged multiple permanent magnet troughs (2-1), and the corresponding position in two ends of permanent magnet trough (2-1) is every magnetic
Bridge, opens up fluted (2-2) every rotor (2) lateral wall corresponding to magnetic bridge.
5. built-in type permanent-magnet vibration damping, noise reduction synchronous motor, it includes stator (1) and rotor (2), and stator (1) is enclosed within rotor (2)
Outside, the two is coaxial, and there is air gap therebetween, it is characterised in that each teeth portion (1-1) on stator (1) includes first half
Tooth (1-1-1) and later half tooth (1-1-2), first half tooth (1-1-1), later half tooth (1-1-2) are arranged in the counterclockwise direction successively, and front
There is saltus step in the radial height of half tooth (1-1-1) and later half tooth (1-1-2) intersection.
6. built-in type permanent-magnet vibration damping according to claim 5, noise reduction synchronous motor, it is characterised in that each described tooth
Width of the width of air gap corresponding to the center in portion (1-1) more than each teeth portion (1-1) air gap arbitrarily corresponding to one end.
7. built-in type permanent-magnet vibration damping according to claim 5 or 6, noise reduction synchronous motor, it is characterised in that described rotor
(2) it is internal it is circumferentially arranged have multiple permanent magnet troughs (2-1), the corresponding position in two ends of permanent magnet trough (2-1) be every magnetic bridge,
Open up fluted (2-2) every rotor (2) lateral wall corresponding to magnetic bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621223499.3U CN206135568U (en) | 2016-11-14 | 2016-11-14 | Built -in permanent magnetism damping, synchronous machine that makes an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621223499.3U CN206135568U (en) | 2016-11-14 | 2016-11-14 | Built -in permanent magnetism damping, synchronous machine that makes an uproar falls |
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| Publication Number | Publication Date |
|---|---|
| CN206135568U true CN206135568U (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621223499.3U Expired - Fee Related CN206135568U (en) | 2016-11-14 | 2016-11-14 | Built -in permanent magnetism damping, synchronous machine that makes an uproar falls |
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| CN (1) | CN206135568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329748A (en) * | 2016-11-14 | 2017-01-11 | 哈尔滨理工大学 | Built-in permanent magnet vibration reduction and noise reduction synchronous motor |
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2016
- 2016-11-14 CN CN201621223499.3U patent/CN206135568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329748A (en) * | 2016-11-14 | 2017-01-11 | 哈尔滨理工大学 | Built-in permanent magnet vibration reduction and noise reduction synchronous motor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20181114 |