CN206389256U - Permagnetic synchronous motor is straight, oblique extremely integral rotor punching and permagnetic synchronous motor - Google Patents
Permagnetic synchronous motor is straight, oblique extremely integral rotor punching and permagnetic synchronous motor Download PDFInfo
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- CN206389256U CN206389256U CN201621451607.2U CN201621451607U CN206389256U CN 206389256 U CN206389256 U CN 206389256U CN 201621451607 U CN201621451607 U CN 201621451607U CN 206389256 U CN206389256 U CN 206389256U
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Abstract
This application discloses permagnetic synchronous motor is straight, tiltedly extremely integral rotor punching and permagnetic synchronous motor, wherein rotor punching includes axis hole, and the side wall of axis hole has p keyway, p is N approximate number, wherein, the mechanical angle of first keyway is 0 °, and the mechanical angle of i-th of keyway isWherein, 2≤i≤p, a are mechanical angle of the stator shared by per groove,The application is by setting p keyway so that rotor punching not only can be suitably used for straight pole structure but also can be suitably used for oblique pole structure, and the rotor punching of the application completes skewed-rotor according to keyway differential seat angle, it is only necessary to a secondary mould, saves mould and man-hour.
Description
Technical field
The utility model is related to machine field, and in particular to permagnetic synchronous motor is straight, oblique extremely integral rotor punching and forever
Magnetic-synchro motor.
Background technology
Motor is a kind of equipment for converting electrical current into mechanical energy.It is to use the power on coil (namely stator winding) production
Raw rotating excitation field simultaneously acts on rotor formation electro-magnetic motor force rotation torque.Motor is divided into direct current generator and friendship by using power supply difference
Motor is flowed, the motor in power system is largely alternating current generator, can be synchronous motor either asynchronous machine (motor stator
Rotational speed of magnetic field does not keep synchronous speed with rotor rotary rpm).Motor is mainly made up of stator with rotor, and electrified wire is in magnetic field
The direction of movement under force is relevant with magnetic induction line (magnetic direction) direction with the sense of current, motor operation principle be magnetic field to electric current by
The effect of power, rotates motor.
In recent years, rare earth permanent-magnet synchronization motor is as energy-conserving product, with small volume, power density be big, lightweight, efficiency
The advantages of height, good output, obtained application is more and more extensive.Permanent magnet is introduced in the rotor of permagnetic synchronous motor, its
Magnetic structure complexity is various, and it is more complicated than common electric machine more to calculate analysis, and due to the presence of permanent magnet so that the gas of motor
Gap field waveform is no longer sine wave, but has the flat-topped wave of one fixed width, and the higher hamonic wave of motor also increases a lot.In order to
Make the air-gap field waveform of motor close to sine wave, eliminate or reduction higher hamonic wave, motor typically using skewed stator slot or turns
The method of sub tiltedly pole, to reduce higher hamonic wave.When electric machine iron core length is shorter, and (general oblique 1 stator scouring machine when needing skewed slot
Tool angle), the copper factor of stator is often very high, and difficulty is brought to motor wire-inserting, now needs the structure for carrying out skewed-rotor
Realize.During skewed-rotor, existing way is that rotor punching as needed opens many secondary moulds, is repeatedly loaded and unloaded when punching
Mould, the structure of existing rotor punching causes the machining period for realizing skewed-rotor long, less efficient and open up many secondary moulds
Cost is higher.
Utility model content
The utility model is in view of the above-mentioned problems, propose that permagnetic synchronous motor is straight, tiltedly extremely integral rotor punching and permanent magnetism
Synchronous motor.When solving prior art and realizing skewed-rotor, efficiency is low and the problem of high cost.
The technical scheme that the utility model is taken is as follows：
A kind of permagnetic synchronous motor is straight, oblique extremely integral rotor punching, and the rotor punching is M groove N poles rotor punching, described
Rotor punching includes punching body, and punching body includes axis hole, and the side wall of axis hole has p keyway, and p is N approximate number, wherein,
The mechanical angle of first keyway is 0 °, and the mechanical angle of i-th of keyway isWherein, 2≤i≤p, a are fixed
Mechanical angle of the son shared by per groove,
In the application, one of median plane of keyway passes through the axis of rotor punching, and the mechanical angle of i-th of keyway refers to
Be i-th keyway need around punching body axis rotation (corresponding keyway need to be rotated along same direction) how much degree ability and the
One keyway is overlapped.
In the application, M is number of stator slots, and M does not have absolute value requirement in design of electrical motor and manufacture, more only with
The preferable value of number of poles N match ratios；N is rotor number of poles, and N values are even number (such as 2.4.6.8...).
When motor uses oblique pole structure, for the ease of layering and the design of angle, typically it is layered according to rotor number of poles,
Design the anglec of rotation.By setting p keyway so that rotor punching not only can be suitably used for straight pole structure but also can be suitably used for oblique pole structure,
When rotor punching is laminated as straight pole in use, only the first keyway of multiple rotor punchings need to align with rotating shaft keyway
, when rotor punching as oblique pole in use, rotor punching is divided into p groups, wherein first keyway of the first group rotor punching
Align and laminated with the keyway of rotating shaft, i-th of keyway of the i-th group rotor punching aligns with the keyway of rotating shaft to be laminated, its
In, 2≤i≤p, this completes the operation of the oblique pole of rotor.The rotor punching of the application is completed according to keyway differential seat angle
Skewed-rotor, it is only necessary to a secondary mould, saves mould and man-hour.
Furthermore, the angle of skewed-rotor rotation is
Furthermore, as N >=6, the number of keyway is equal to 1/2nd series, i.e. p=N/2.
Furthermore, the series N of rotor punching is equal to the number p of keyway.
When motor pole number is more, and rotor internal diameter is smaller, keyway is arranged to p=N/2, is turned by reducing fluting number to improve
The mechanical strength of sub- punching；When motor internal diameter is larger, N number of keyway can be set.
Disclosed herein as well is a kind of permagnetic synchronous motor, including rotor, the rotor includes above-mentioned permanent magnet synchronous electric
Machine is straight, oblique extremely integral rotor punching.
Furthermore, the rotor is straight pole rotor, and rotor also includes rotating shaft, and rotating shaft is provided with keyway, and rotating shaft passes through
The first keyway being arranged on the flat key and rotor punching on keyway is fixed on the positioning.
Furthermore, the rotor is skewed pole rotor, and rotor also includes rotating shaft, and rotating shaft is provided with keyway, keyway and set
Flat key is equipped with, the rotor punching is divided into p groups, wherein first keyway of the first group rotor punching and the flat key of rotating shaft coordinate folded
Rotating shaft is pressed into, i-th of keyway of the i-th group rotor punching and the flat key of rotating shaft, which coordinate, to be laminated into rotating shaft, wherein, 2≤i≤p.
The beneficial effects of the utility model are：When motor uses oblique pole structure, for the ease of layering and the design of angle,
Typically it is layered according to rotor number of poles, designs the anglec of rotation.By setting p keyway so that rotor punching both can be suitably used for straight pole
Structure can be suitably used for oblique pole structure again, when rotor punching as straight pole in use, only need to be by the first keyway of multiple rotor punchings
Align and laminated with rotating shaft keyway, when rotor punching as oblique pole in use, rotor punching is divided into p groups, wherein
First keyway of one group rotor punching aligns with the keyway of rotating shaft to be laminated, and i-th of keyway of the i-th group rotor punching is with turning
The keyway alignment of axle is laminated, wherein, 2≤i≤p, this completes the operation of the oblique pole of rotor.The rotor of the application
Punching completes skewed-rotor according to keyway differential seat angle, it is only necessary to a secondary mould, saves mould and man-hour.
Brief description of the drawings：
Fig. 1 is that the utility model permagnetic synchronous motor is straight, tiltedly extremely integral rotor punching schematic diagram.
Each reference is in figure：
1st, the first keyway；2nd, the second keyway；3rd, key-groove；4th, the 4th keyway；5th, punching body；6th, axis hole.
Embodiment：
With reference to each accompanying drawing, the utility model is described in detail.
As shown in figure 1, a kind of permagnetic synchronous motor is straight, oblique extremely integral rotor punching, rotor punching is that M groove N poles rotor is rushed
Piece, rotor punching includes punching body 5, and punching body 5 includes axis hole 6, and the side wall of axis hole has p keyway, and p is N approximate number,
Wherein, the mechanical angle of first keyway 1 is 0 °, and the mechanical angle of i-th of keyway isWherein, 2≤i≤p,
A is mechanical angle of the stator shared by per groove,
In the present embodiment, rotor punching is the pole rotor punching of 48 groove 8, i.e. M=48, N=8, during practice, when N >=6
When, the number of keyway can be arranged to 1/2nd series, i.e. N/2, and when motor internal diameter is larger, the number of keyway can also
Series is set equal to, is specifically arranged to how many, is determined according to actual conditions.In the present embodiment, the side wall of axis hole 6 has N/
2 keyways, i.e., 4 keyways, respectively the first keyway 1, the second keyway 2, the keyway 4 of key-groove 3 and the 4th.
From formula, the mechanical angle A of the second keyway 2 is 91.875 °, and the mechanical angle B of key-groove 3 is
183.75 °, the mechanical angle C of the 4th keyway 4 is that one of median plane of keyway in 275.625 °, the present embodiment passes through rotor
The axis of punching, the mechanical angle of i-th of keyway refers to i-th of keyway needs turn clockwise how many around punching body axis
Degree is just overlapped with the first keyway.
In the present embodiment, stator is per groove mechanical angleI.e. a=7.5 °, skewed-rotor rotation angle beI.e. the oblique polar angle degree of rotor is 5.625 mechanical angles.
The present embodiment rotor punching is by setting p keyway so that rotor punching not only can be suitably used for straight pole structure but also can be applicable
In oblique pole structure, when rotor punching as straight pole in use, only need to by the first keyway of multiple rotor punchings with rotating shaft keyway
Alignment is laminated, when rotor punching as oblique pole in use, rotor punching is divided into p groups, wherein the first group rotor punching
First keyway align and laminated with the keyway of rotating shaft, i-th of keyway of the i-th group rotor punching aligns with the keyway of rotating shaft
Laminated, wherein, 2≤i≤p, this completes the operation of the oblique pole of rotor.The rotor punching of the present embodiment is according to key
Angle of the v-groove difference completes skewed-rotor, it is only necessary to a secondary mould, saves mould and man-hour.
Embodiment 2
Present embodiment discloses a kind of permagnetic synchronous motor, including rotor, rotor is the permagnetic synchronous motor of embodiment 1
Directly, oblique extremely integral rotor punching.In the present embodiment, rotor is straight pole rotor, and rotor also includes rotating shaft, and rotating shaft is provided with key
Groove, rotating shaft is fixed on the positioning by the first keyway being arranged on the flat key and rotor punching on keyway.
Embodiment 3
Present embodiment discloses a kind of permagnetic synchronous motor, including rotor, rotor is the permagnetic synchronous motor of embodiment 1
Directly, oblique extremely integral rotor punching.In the present embodiment, rotor is skewed pole rotor, and rotor also includes rotating shaft, and rotating shaft is provided with key
Flat key is provided with groove, keyway, rotor punching is divided into p groups, wherein first keyway of the first group rotor punching and putting down for rotating shaft
Key, which coordinates, to be laminated into rotating shaft, and i-th of keyway of the i-th group rotor punching and the flat key cooperation of rotating shaft are laminated into rotating shaft, wherein, 2≤i
≤p。
Preferred embodiment of the present utility model is the foregoing is only, not thereby patent protection of the present utility model is limited
Scope, the equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are made, is directly or indirectly used in it
The technical field of his correlation, is similarly included in protection domain of the present utility model.
Claims (7)
1. a kind of permagnetic synchronous motor is straight, oblique extremely integral rotor punching, it is characterised in that the rotor punching is M groove N poles rotor
Punching, the rotor punching includes punching body, and punching body includes axis hole, and the side wall of axis hole has p keyway, and p is N pact
Number, wherein, the mechanical angle of first keyway is 0 °, and the mechanical angle of i-th of keyway isWherein, 2≤i≤
P, a are mechanical angle of the stator shared by per groove,
2. permagnetic synchronous motor as claimed in claim 1 is straight, oblique extremely integral rotor punching, it is characterised in that skewed-rotor revolves
Turn angle be
3. permagnetic synchronous motor as claimed in claim 1 is straight, oblique extremely integral rotor punching, it is characterised in that as N >=6, key
The number of groove is equal to 1/2nd series, i.e. p=N/2.
4. permagnetic synchronous motor as claimed in claim 1 is straight, oblique extremely integral rotor punching, it is characterised in that rotor punching
Series N is equal to the number p of keyway.
5. a kind of permagnetic synchronous motor, it is characterised in that including rotor, the rotor includes such as Claims 1 to 4 any one
Described permagnetic synchronous motor is straight, oblique extremely integral rotor punching.
6. permagnetic synchronous motor as claimed in claim 5, it is characterised in that the rotor is straight pole rotor, rotor also includes
Rotating shaft, rotating shaft is provided with keyway, and rotating shaft is positioned by the first keyway being arranged on the flat key and rotor punching on keyway
It is fixed.
7. permagnetic synchronous motor as claimed in claim 5, it is characterised in that the rotor is skewed pole rotor, rotor also includes
Rotating shaft, rotating shaft is provided with keyway, keyway and is provided with flat key, and the rotor punching is divided into p groups, wherein the first group rotor punching
First keyway and the flat key of rotating shaft, which coordinate, to be laminated into rotating shaft, and i-th of keyway of the i-th group rotor punching and the flat key of rotating shaft coordinate
Laminate into rotating shaft, wherein, 2≤i≤p.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621451607.2U CN206389256U (en) | 2016-12-28 | 2016-12-28 | Permagnetic synchronous motor is straight, oblique extremely integral rotor punching and permagnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621451607.2U CN206389256U (en) | 2016-12-28 | 2016-12-28 | Permagnetic synchronous motor is straight, oblique extremely integral rotor punching and permagnetic synchronous motor |
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| CN206389256U true CN206389256U (en) | 2017-08-08 |
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| CN201621451607.2U Active CN206389256U (en) | 2016-12-28 | 2016-12-28 | Permagnetic synchronous motor is straight, oblique extremely integral rotor punching and permagnetic synchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533104A (en) * | 2016-12-28 | 2017-03-22 | 卧龙电气集团股份有限公司 | Straight and oblique pole integrated rotor punching plate of permanent magnet synchronous motor and permanent magnet synchronous motor |
| CN109193982A (en) * | 2018-08-31 | 2019-01-11 | 重庆众泰新能源汽车技术研究院有限公司 | A kind of motor mistake pole rotor |
-
2016
- 2016-12-28 CN CN201621451607.2U patent/CN206389256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533104A (en) * | 2016-12-28 | 2017-03-22 | 卧龙电气集团股份有限公司 | Straight and oblique pole integrated rotor punching plate of permanent magnet synchronous motor and permanent magnet synchronous motor |
| CN109193982A (en) * | 2018-08-31 | 2019-01-11 | 重庆众泰新能源汽车技术研究院有限公司 | A kind of motor mistake pole rotor |
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