CN206283341U - The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability - Google Patents
The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability Download PDFInfo
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- CN206283341U CN206283341U CN201621186162.XU CN201621186162U CN206283341U CN 206283341 U CN206283341 U CN 206283341U CN 201621186162 U CN201621186162 U CN 201621186162U CN 206283341 U CN206283341 U CN 206283341U
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- permanent magnet
- rotor
- motor
- magnetic pole
- self
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Abstract
The utility model discloses a kind of rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability, the lamination structure includes rotor magnetic pole, permanent magnet trough, permanent magnet, interpolar fluting and is arranged on the equally distributed groove of permanent magnet trough bottom；Punching number of poles is more than or equal to 2, and every magnetic pole permanent magnet trough and permanent magnet number are more than or equal to 1；Magnetic pole angle is 0.75 ~ 0.8 times of 360/2p, and p is the number of pole-pairs of motor；It is one section of circular arc with rotor punching decentraction that rotor magnetic pole is cylindrical, and its radius is（0.89~0.93）× R, R are rotor punching exradius；In permanent magnet insertion permanent magnet trough, slotted with interpolar between adjacent rotor pole.
Description
Technical field
The utility model is related to electric motors, specifically a kind of to have self-starting ability and the outstanding runnability of work frequency conversion
High performance-price ratio rotor sheet of permanent magnet motor structure.
Background technology
Magneto is different with the method for operation by starting, and is generally divided into asynchronous starting permanent magnet synchronous motor（With from
Kinetic force）And variable frequency speed-adjusting permanent magnet synchronous motor.Current both motors are using different rotor punching structures, it is necessary to two sets
Mould, is more expensive to manufacture, and the production cycle is long, and corresponding cost of labor is also high, is unfavorable for the cost efficiency of enterprise.
High-Performance Asynchronous starting permanent-magnet synchronous motor must simultaneously meet starting quality factor high and high efficiency, high power
Factor, therefore rotor cage groove and permanent magnet are required for enough design spaces, as shown in figure 3, traditional lamination structure is past
Toward such design requirement cannot be met, iron core can only be lengthened to meet design requirement, so result in motor cost increase, led
Marketing is caused to be limited by selling at exorbitant prices.
If traditional asynchronous starting permanent magnet synchronous motor directly regards frequency control motor application, due to its rotor knot
Structure often leads to magnetic flux and forms closed magnetic circuit by pole shoe, motor excessively saturation is caused, so as to reduce the overload capacity of motor.
The content of the invention
Goal of the invention
The purpose of this utility model is to provide a kind of magneto for taking into account work frequency conversion performance with self-starting ability to turn
Sub- punching, to solve the problems, such as to be proposed in above-mentioned background technology.
Technical scheme
The utility model is achieved through the following technical solutions：
A kind of rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability, the lamination structure includes rotor
Magnetic pole, permanent magnet trough, permanent magnet, interpolar fluting and it is arranged on the equally distributed groove of permanent magnet trough bottom；Punching number of poles is big
In equal to 2, every magnetic pole permanent magnet trough and permanent magnet number are more than or equal to 1；Magnetic pole angle a is 0.75 ~ 0.8 times of 360/2p, and p is
The number of pole-pairs of motor；It is one section of circular arc with rotor punching decentraction that rotor magnetic pole is cylindrical, and its radius is（0.89~0.93）× R,
R is rotor punching exradius；In permanent magnet insertion permanent magnet trough, slotted with interpolar between adjacent rotor pole.
The quantity for being arranged on the equally distributed groove of permanent magnet trough bottom is the integral multiple of number of poles；Groove top the widest part is groove
Bottom most it is narrow go out 3 ~ 4 times of width.
Rising for closure is formed when the equally distributed groove of permanent magnet trough bottom is as self-starting rotor, after the groove cast aluminium
Dynamic basket structure, makes motor have self-starting ability.
When the equally distributed groove of permanent magnet trough bottom is as variable-frequency motor rotor, the groove not cast aluminium, as the logical of motor
Air holes and lightening hole.
When permanent magnet trough and permanent magnet are set to 1 in each rotor magnetic pole, the both sides of permanent magnet trough are respectively provided with circular arc；Often
When permanent magnet trough and permanent magnet are set to 2 in individual rotor magnetic pole, the side near interpolar fluting is provided with circular arc, near magnetic pole
The side in center is provided with boss；When permanent magnet trough and permanent magnet number are more than 3 in each rotor magnetic pole, near interpolar fluting
Two permanent magnet troughs are being provided with boss near the side in magnetic pole center, and circular arc is provided with the side slotted near interpolar, remaining
The both sides of permanent magnet trough are provided with boss；Projection width in 1.0 ~ 3.0mm, with rotor punching external diameter distance in 0.8 ~ 1.5mm.
The depth of groove of interpolar fluting is 2 ~ 2.5 times of permanent magnetism body thickness.
Advantage and effect
The utility model has the following advantages that and beneficial effect：
1st, the utility model rotor structure, can be shared with a set of punching asynchronous starting and permanent magnet motor and frequency control motor,
Both mold materials cost and human cost had been saved, the construction cycle had been shortened again, reduced seriation punching specification quantity, can be effective
Reduce enterprise's items cost.
2nd, the equally distributed groove of permanent magnet trough bottom, use is more also more flexible, during as self-starting rotor,
The groove is cage grooves, and the starting basket structure of closure is formed after cast aluminium, forms the self-starting ability of motor.As variable-frequency motor rotor
When, the groove not cast aluminium, as the air vent and lightening hole of motor.
3rd, the equally distributed groove of permanent magnet trough bottom, compared with traditional structure, its design space is bigger, can be also by excellent
Change design grooved size, improve the starting performance of motor, it is not necessary to starting and runnability are taken into account using lengthening mode unshakable in one's determination again, can
Effectively reduce the weight and cost of motor.
4th, it is one section of circular arc with rotor punching decentraction that magnetic pole is cylindrical, and its radius is（0.89~0.93）× R, R are rotor
Punching exradius.Permanent magnet trough is being provided with boss structure near two grooves of interpolar near the side in magnetic pole center, is close to
The permanent magnet trough in magnetic pole center is provided with boss structure in the both sides of groove.In 1.0 ~ 3.0mm, it is rushed projection width apart from magnetic pole
Piece external diameter distance is in 0.8 ~ 1.5mm.Interpolar sets groove structure, and depth of groove is 2 ~ 2.5 times of permanent magnetism body thickness.Can effectively protect
The sine of motor-field is demonstrate,proved, motor harmonic loss is reduced, increases the overload capacity of motor, improve the runnability of motor.
Brief description of the drawings
Fig. 1 is the utility model rotor punching figure.
Fig. 2 is the utility model punching partial enlarged drawing.
Fig. 3 is conventional asynchronous starting motor rotor punching figure.
Description of reference numerals：
1- rotor magnetic poles, 2- permanent magnet troughs, 3- interpolars fluting, the equally distributed groove of 4- permanent magnet troughs bottom, a- magnetic poles
Angle, 5- boss, 6- traditional motor permanent magnet grooves, 7- cage grooves, 8- circular arcs.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings：
The utility model proposes a kind of rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability, such as
Shown in Fig. 1, the lamination structure includes rotor magnetic pole 1, permanent magnet trough 2, permanent magnet, interpolar fluting 3 and is arranged on permanent magnet trough
The equally distributed groove 4 of bottom；Punching number of poles is more than or equal to 2, and every magnetic pole permanent magnet trough and permanent magnet number are more than or equal to 1；Magnetic
Polar angle degree a is 0.75 ~ 0.8 times of 360/2p, and p is the number of pole-pairs of motor；Rotor magnetic pole 1 is cylindrical to be and rotor punching decentraction
One section of circular arc, its radius is（0.89~0.93）× R, R are rotor punching exradius；In permanent magnet insertion permanent magnet trough 2, phase
There is interpolar fluting 3 between adjacent rotor magnetic pole 1.The pole embrace and air-gap field of motor is more optimized, effectively reduce
Gas-gap Magnetic Field Resonance Wave content, reduces motor harmonic loss and vibration noise.
The quantity for being arranged on the equally distributed groove 4 of permanent magnet trough bottom is the integral multiple of number of poles；Groove top the widest part is
Groove bottom most it is narrow go out 3 ~ 4 times of width.Can so make rotor magnetic field symmetrical, and keep rotor magnetic close in zone of reasonableness
Within, it is to avoid circulation is produced in the stator windings because magnetic field is asymmetric.
When the equally distributed groove 4 of permanent magnet trough bottom is as self-starting rotor, closure is formed after the groove cast aluminium
Basket structure is started, makes motor that there is self-starting ability.
When the equally distributed groove 4 of permanent magnet trough bottom is as variable-frequency motor rotor, the groove not cast aluminium, as the logical of motor
Air holes and lightening hole.
As shown in Fig. 2 when permanent magnet trough and permanent magnet are set to 1 in each rotor magnetic pole, the both sides of permanent magnet trough are equal
Circular arc 8 is set；When permanent magnet trough and permanent magnet are set to 2 in each rotor magnetic pole, the side near interpolar fluting is provided with
Circular arc 8, the side near magnetic pole center is provided with boss 5；Permanent magnet trough and permanent magnet number are more than 3 in each rotor magnetic pole
When, two permanent magnet troughs 2 near interpolar fluting are being provided with boss 5 near the side in magnetic pole center, near interpolar fluting
Side be provided with circular arc 8, the both sides of remaining permanent magnet trough are provided with boss 5.
Projection width in 1.0 ~ 3.0mm, with rotor punching external diameter distance in 0.8 ~ 1.5mm.So can be in limited rotor magnetic
More permanent magnets are placed in the space of pole, motor performance is improved, while ensureing that motor flux leakage is smaller, permanent magnet is produced more effectively
Magnetic flux.
The depth of groove of interpolar fluting 3 is 2 ~ 2.5 times of permanent magnetism body thickness.Motor quadrature axis reactance so can be effectively adjusted,
Increase the overload capacity of motor.
Embodiment 1：
A kind of rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability, as depicted in figs. 1 and 2, should
Lamination structure includes rotor magnetic pole, permanent magnet trough, permanent magnet, interpolar fluting and is arranged on being uniformly distributed for permanent magnet trough bottom
Groove.Punching number of poles is 4 poles, and every magnetic pole permanent magnet trough and permanent magnet number are 3 pieces, and magnetic pole angle is the 0.75 ~ 0.8 of 360/2p
Times, p is the number of pole-pairs of motor, and it is one section of circular arc with rotor punching decentraction that magnetic pole is cylindrical, and its radius is（0.89~0.93）×
R, R are rotor punching exradius, are arranged on the equally distributed groove of permanent magnet trough bottom.
As shown in figure 1, for requirement of the load to motor starting performance, optimization design permanent magnet trough bottom is uniformly distributed
Flute profile, the present embodiment slot number use 28 grooves, groove profile uses convex slot, to meet starting performance, while making rotor magnetic circuit
Magnetic is close to be reasonably distributed, and runnability is excellent.Compared with traditional structure, electric machine iron core is long to shorten 8% to this example, and permanent magnet consumption subtracts
Few 28.7%, the effective material cost reduction by 15% of motor.
It is one section of circular arc with rotor punching decentraction that magnetic pole is cylindrical, and its radius is（0.89~0.93）× R, such as Fig. 2 institutes
Show, interpolar sets groove structure, depth of groove is 2 ~ 2.5 times of permanent magnetism body thickness, can effectively be reduced as frequency control motor
Harmonic content, reduce harmonic loss, improve motor overload capacity, reduce motor operating current.Started with conventional asynchronous and rushed
Piece directly applies to frequency control motor and compares, and performance is more excellent.
In sum, rotor sheet of permanent magnet motor structure of the present utility model, can be with a set of punching asynchronous starting and permanent magnet electricity
Machine and frequency control motor are shared, and have both saved mold materials cost and human cost, and the construction cycle is shortened again, reduce series
Change punching specification quantity, can effectively reduce enterprise's items cost.The material cost compared with traditional structure asynchronous starting and permanent magnet motor
More than 15% can be saved, it is more excellent to be applied to performance with conventional asynchronous starting motor stamping.
Embodiment of the present utility model is only schematically to be illustrated using 4 pole rotor structures, not to this practicality
New limitation, the utility model can be used in the case of all numbers of poles and rotor structure.
Claims (6)
1. a kind of rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability, it is characterised in that：The punching knot
Structure includes rotor magnetic pole（1）, permanent magnet trough（2）, permanent magnet, interpolar fluting（3）And it is arranged on the uniform of permanent magnet trough bottom
The groove of distribution（4）；Punching number of poles is more than or equal to 2, and every magnetic pole permanent magnet trough and permanent magnet number are more than or equal to 1；Magnetic pole angle（a）
It it is 0.75 ~ 0.8 times of 360/2p, p is the number of pole-pairs of motor；Rotor magnetic pole（1）Cylindrical is a section with rotor punching decentraction
Circular arc, its radius is（0.89~0.93）× R, R are rotor punching exradius；Permanent magnet is embedded in permanent magnet trough（2）In, it is adjacent
Rotor magnetic pole（1）Between with interpolar fluting（3）.
2. the rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability according to claim 1, it is special
Levy and be：It is arranged on the equally distributed groove of permanent magnet trough bottom（4）Quantity for number of poles integral multiple；Groove top the widest part is
Groove bottom most it is narrow go out 3 ~ 4 times of width.
3. the rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability according to claim 1 and 2, its
It is characterised by：The equally distributed groove of permanent magnet trough bottom（4）During as self-starting rotor, closure is formed after the groove cast aluminium
Starting basket structure, make motor that there is self-starting ability.
4. the rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability according to claim 1 and 2, its
It is characterised by：The equally distributed groove of permanent magnet trough bottom（4）During as variable-frequency motor rotor, the groove not cast aluminium, as motor
Air vent and lightening hole.
5. the rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability according to claim 1, it is special
Levy and be：When permanent magnet trough and permanent magnet are set to 1 in each rotor magnetic pole, the both sides of permanent magnet trough are respectively provided with circular arc（8）；
When permanent magnet trough and permanent magnet are set to 2 in each rotor magnetic pole, the side near interpolar fluting is provided with circular arc（8）, lean on
The side in nearly magnetic pole center is provided with boss（5）；When permanent magnet trough and permanent magnet number are more than 3 in each rotor magnetic pole, it is close to
Two permanent magnet troughs of interpolar fluting（2）The side in magnetic pole center is being provided with boss（5）, near the one of interpolar fluting
Side is provided with circular arc（8）, the both sides of remaining permanent magnet trough are provided with boss（5）；Projection width is rushed in 1.0 ~ 3.0mm with rotor
Piece external diameter distance is in 0.8 ~ 1.5mm.
6. the rotor sheet of permanent magnet motor that work frequency conversion performance is taken into account with self-starting ability according to claim 1, it is special
Levy and be：Interpolar is slotted（3）Depth of groove be 2 ~ 2.5 times of permanent magnetism body thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186162.XU CN206283341U (en) | 2016-11-04 | 2016-11-04 | The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186162.XU CN206283341U (en) | 2016-11-04 | 2016-11-04 | The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206283341U true CN206283341U (en) | 2017-06-27 |
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ID=59082266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186162.XU Withdrawn - After Issue CN206283341U (en) | 2016-11-04 | 2016-11-04 | The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206283341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411005A (en) * | 2016-11-04 | 2017-02-15 | 沈阳工业大学 | Permanent magnet motor rotor punching sheet with self-starting ability and frequency conversion performance |
-
2016
- 2016-11-04 CN CN201621186162.XU patent/CN206283341U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411005A (en) * | 2016-11-04 | 2017-02-15 | 沈阳工业大学 | Permanent magnet motor rotor punching sheet with self-starting ability and frequency conversion performance |
| CN106411005B (en) * | 2016-11-04 | 2018-10-16 | 沈阳工业大学 | The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20181016 |