CN104079094A - Rotor-core stamped sheet of three-phase frequency-conversion permanent magnet synchronous motor - Google Patents
Rotor-core stamped sheet of three-phase frequency-conversion permanent magnet synchronous motor Download PDFInfo
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- CN104079094A CN104079094A CN201410328176.XA CN201410328176A CN104079094A CN 104079094 A CN104079094 A CN 104079094A CN 201410328176 A CN201410328176 A CN 201410328176A CN 104079094 A CN104079094 A CN 104079094A
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Abstract
The invention relates to a rotor-core stamped sheet of a three-phase frequency-conversion permanent magnet synchronous motor, and belongs to rotor stamped sheets of the three-phase frequency-conversion permanent magnet synchronous motor. The rotor stamped sheet of the three-phase frequency-conversion permanent magnet synchronous motor has the super-high-efficiency and high pull-out torque and can prevent reverse rotation in the starting process. An XY225-4 type frequency-conversion permanent magnet motor can be used, a low-loss rotor stamped sheet formed by punching a silicon steel stamped sheet is provided, starting rod holes are evenly distributed in the outer circumference of the rotor stamped sheet, w-type magnetic steel grooves are evenly distributed in the rotor stamped sheet, magnetic separation bridges A are arranged below starting rods and between the magnetic steel grooves, a magnetic separation bridge B and a magnetic separation bridge C are arranged between two pieces of magnetic steel, stiffness enhancement screw rod holes are formed in the rotor stamped sheet, and a rotor shaft hole is formed in the center of the rotor-core stamped sheet.
Description
Technical field
What three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination of the present invention related to is that a kind of three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination belongs to Ultra-High Efficiency, high pull-out torque, the rotor punching of the three phase variable frequency permanent magnet synchronous motor that can start smoothly, can be used for XY225-4 type frequency conversion permanent magnet motor.
Background technology
Conventional rotor lamination of permanent magnet motor at present, because the design of rotor punching is unreasonable, make the overload capacity of permanent magnet motor on the low side, cause normal generation step-out face scaling loss magneto, under frequency control, magneto operation is stable not, magnet steel be in operation crack and make permanent magnet motor power factor reduce, armature supply increase, stator copper loss increase, Efficiency Decreasing, it is desirable that power savings is owed, and back electromotive force reductions that be in operation, causes meritorious power saving rate decline.
Summary of the invention
The object of the invention is provides a kind of three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination for above-mentioned weak point, three-phase permanent-magnetic synchronous motors (XY225-4) pull-out torque that makes to adopt this rotor punching to be produced is high, efficiency is high, power factor is high, rotor rigidity is good, pole field strength balance motor oscillating is little, also have reasonably unloaded anti-Shen kinetic potential, Gas gap magnetic field saturation characteristic controlled, to for frequency conversion permanent magnet motor except above-mentioned advantage, good stability when load change, power savings is obvious.
A kind of three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination takes following scheme to realize:
Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination, there is rotor punching, the uniform starting bar of the rotor punching excircle hole of low-loss punching silicon-steel, the uniform W shape of rotor punching magnet steel groove, below starting bar and between magnet steel groove, be provided with every magnetic bridge A, between two blocks of magnet steel, be provided with every magnetic bridge B and C, rigidity is set on rotor punching and strengthens screw hole, at rotor-core lamination, central authorities are provided with rotor shaft hatch.
Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination structure has rotor punching body (50W350), the uniform W shape of rotor punching excircle is arranged rectangle magnet steel groove, following in starting bar hole, above magnet steel groove, be provided with every magnetic bridge A, between two radial magnet steel grooves, be designed with every magnetic bridge B, between two magnet steel grooves, be provided with every magnetic bridge C with every magnetic bridge D, on rotor punching body, be provided with rigidity and strengthen screw hole and have rotor shaft hatch, magnet steel groove to be arranged in W shape.
Described rotor punching body diameter is Φ 232-232.05mm.
Described starting bar bore dia is Φ 6.6-6.7mm.
Described starting bar hole is provided with 44.
What between described starting bar hole and magnet steel groove, arrange is 8.6-8.7mm every magnetic bridge A width, and length is 21.9-22.0mm.
The uniform W shape of described rotor punching excircle is arranged 16 of rectangle magnet steel grooves.
Described magnet steel well width is 8.60-8.65mm, and length is 40.2-40.3mm.
Between two described radial magnet steel grooves, be 3.0-3.05mm every magnetic bridge C width, length is 22.2-22.3mm.
Two described magnet steel groove interval magnetic bridge C, width and length are 8.0-8.10mm, corner R=8mm.
Two described magnet steel groove interval magnetic bridge D, width and length are 8.0-8.10mm, corner R=1.0mm.
Described rotor punching, each magnetic pole and magnetic field is independent, can make each magnetic poles mill magnetic line of force of rotor move towards clear, each pole field even intensity, unilateral magnetic force is even, and motor oscillating is little.
Described rigidity strengthens screw hole and is provided with 12, and rigidity strengthens screw hole diameter of phi 6.1-6.15mm, presses close to magnet steel groove firm for 1Cr18Ni9 stainless steel screw rod, and the rigidity Shi Shi Fill that rotor-core lamination had been weakened is already strong.
Described magnet steel trench pattern is W shape, and 4 magnet steel grooves of every utmost point are all independent.
Described rotor punching body adopts low-loss silicon steel sheet 50W350.
50W350 silicon steel sheet, it is a kind of containing the low silicon-iron soft magnetic alloy of carbon electrode, general silicon content 0.5～4.5%.Add silicon can improve resistivity and the maximum permeability of iron, reduce coercive force, core loss (iron loss) and magnetic aging.
When a kind of three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination uses, being sleeved on pressurization on plug by the sheet number of 2 times of core lengths tightens, be assembled into rotor core, after cast aluminium, send into heating furnace heating, after heating by rotor hot jacket on main shaft, with the outer garden of spindle hole positioning car, clear up and check magnet steel groove, the corresponding magnetic links of correct embedding in magnet steel groove, both sides end face is fixed with aluminium lateral plate, verification dynamic balancing on dynamic balancing machine, and after verification is qualified, rotor packs stator into.
Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination of the present invention, pull-out torque is high, efficiency is high, power factor is high, rotor rigidity is good, utmost point magnetic mill strength balance motor oscillating is little to make to adopt the three phase variable frequency permanent magnet synchronous motor (XY225-4 type) that this rotor punching produces, also have rational unloaded back electromotive force, air gap magnetic mill saturation characteristic controlled, to for frequency conversion permanent magnet motor except above-mentioned advantage, good stability when load change, power savings is obvious.
Three phase variable frequency permanent-magnet synchronous motor rotor of the present invention punching, is suitable for XY225-4 type three phase variable frequency permanent magnet synchronous motor.
Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination feature has:
1, multiple spot, every magnetic, reduces the leakage of magnetic field intensity as far as possible
Line of the present invention starts, in the public three-phase rare-earth permanent-magnet synchronous motor rotor punching of variable frequency starting, be designed with 4 of A.B.C.D every magnetic bridge, especially every magnetic bridge B, very crucial to ensureing the uniformity of every pole field intensity.
2, magnet steel groove intensity get is strong Dao Fill
In line startup of the present invention, the public three-phase rare-earth permanent-magnet synchronous motor rotor punching of variable frequency starting, wherein to causing rotor punching rigidity significantly to reduce because 16 magnet steel grooves excavate, rotor core in service distortion causes permanent magnet in magnet steel groove to be squeezed and to ftracture, and has reduced magnet steel magnetic field intensity and makes magneto performance drift.The present invention has designed 12 stainless steel screw holes, makes rotor core rigidity get arrive great Fu Fill strong.
3, frequency control three-phase permanent-magnetic synchronous motors operation stability gets a promotion.
On the three-phase permanent magnet motor rotor punching that general line voltage directly starts, be provided with startup cage, to start used for three-phase permanent-magnetic synchronous motors under line voltage source, generally under variable-frequency governor condition, start permanent magnet synchronous motor, do not need to arrange startup cage, rotor-core lamination of the present invention is still provided with " startup cage ", but this is to play the effect of damping cage, has increased stability in the time that motor running load fluctuates.
4, each magnetic pole and magnetic field strength ratio is compared with balance, and magnetic loss is less, and unilateral magnetic force is minimum.
The magnet steel of the each magnetic pole in rotor punching of the present invention is independently, isolation, causing the magnetic field intensity equilibrium of each magnetic pole, magnetic loss is little, and unilateral magnetic force is minimum, vibrates little when permanent magnet motor operation.
Brief description of the drawings
Below with reference to accompanying drawing, the invention will be further described:
Fig. 1 is three phase variable frequency permanent-magnet synchronous motor rotor lamination structure schematic diagram.
Fig. 2 is the starting bar hole schematic diagram of three phase variable frequency permanent-magnet synchronous motor rotor punching.
Fig. 3 is three phase variable frequency permanent-magnet synchronous motor rotor punching multiple spot magnet isolation tank A schematic diagram.
Fig. 4 is three phase variable frequency permanent-magnet synchronous motor rotor punching multiple spot magnet isolation tank B schematic diagram.
In figure: 1, rotor punching body, 2, starting bar hole, 3, magnet steel groove, 4, every magnetic bridge (A, B, C, D), 5, rigidity strengthens screw hole, 6, rotor shaft hatch.
Embodiment
With reference to accompanying drawing 1～4, the punching of three phase variable frequency permanent-magnet synchronous motor rotor have rotor punching body 1, rotor punching be externally evenly distributed in starting bar hole 2, below starting bar hole 2 the uniform W shape of rotor punching body 1 square shape magnet steel groove 3, in starting bar hole 2 below, magnet steel groove 3 tops arrange every magnetic bridge A, between two radial magnet steel grooves 3, be designed with every magnetic bridge B, between two major parts magnet steel groove, be designed with every magnetic bridge C, on rotor punching, there are 12 rigidity to strengthen screw hole 5, have rotor shaft hatch 6, magnet steel groove becomes W shape.
Described rotor punching body 1 diameter is Φ 134-134.03mm.
Described starting bar hole 2 diameters are Φ 6.0-6.1mm.
Described starting bar hole 2 is provided with 32.
What between described starting bar hole 2 and magnet steel groove 3, arrange is 8.6-8.65mm every magnetic bridge A width, and length is 22.2-22.3mm.
Described magnet steel groove 3 width are 4.3-4.35mm, and length is 22.2-22.3mm.
Between two described radial magnet steel grooves, be 2.8-3.0mm every magnetic bridge C width, length is 22.2-22.3mm.
Two described magnet steel groove interval magnetic bridge C, width and length are 3.80-3.85mm.
Two described magnet steel groove interval magnetic bridge D, width and length are 8.0-8.10mm, corner R=1.0mm.
It is 12-starting bar hole 6.1-6.15mm that described rigidity strengthens screw hole 5.
Described magnet steel groove 3 layouts are W shape, and 4 magnet steel grooves of every utmost point are all independent.
Described rotor punching body 1 adopts low-loss silicon steel sheet 50W350.
50W350 silicon steel sheet, it is a kind of containing the low silicon-iron soft magnetic alloy of carbon electrode, general silicon content 0.5～4.5%.Add silicon can improve resistivity and the maximum permeability of iron, reduce coercive force, core loss (iron loss) and magnetic aging.
Claims (10)
1. a three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination, it is characterized in that: rotor punching, the uniform starting bar of the rotor punching excircle hole with low-loss punching silicon-steel, the uniform W shape of rotor punching magnet steel groove, below starting bar and between magnet steel groove, be provided with every magnetic bridge A, between two blocks of magnet steel, be provided with every magnetic bridge B and C, rigidity is set on rotor punching and strengthens screw hole, at rotor-core lamination, central authorities are provided with rotor shaft hatch.
2. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that described rotor punching diameter is Φ 232-232.05mm.
3. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that described starting bar bore dia is Φ 6.6-6.7mm.
4. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that described starting bar hole is provided with 44, is uniformly distributed along the circumference.
5. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, it is characterized in that arranging between described starting bar hole and magnet steel groove every magnetic bridge A, width is 8.6-8.7mm, length is 21.9-22.0mm.
6. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that described magnet steel well width is 8.60-8.65mm, and length is 40.2-40.3mm.
7. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, between the magnet steel groove of two arranged radiallys described in it is characterized in that, be 3.0-3.05mm every the width of magnetic bridge B, width and length every magnetic bridge C are 8.0-8.10mm, corner R is 8mm, width and length every magnetic bridge D are 8.0-8.10mm, and corner R is 1.0mm.
8. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that described rigidity strengthens 12 of screw holes, presses close to magnet steel groove firm for 1Cr18Ni9 stainless steel screw rod, strong to the rigidity Shi Shi Fill of rotor-core lamination.
9. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that described rotor punching, and each magnetic pole and magnetic field is independent, can make each magnetic poles mill magnetic line of force of rotor move towards clear, each pole field even intensity, unilateral magnetic force is even, and motor oscillating is little.
10. three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination according to claim 1, is characterized in that: rotor punching body adopts low-loss silicon steel sheet 50W350.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328176.XA CN104079094A (en) | 2014-07-11 | 2014-07-11 | Rotor-core stamped sheet of three-phase frequency-conversion permanent magnet synchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328176.XA CN104079094A (en) | 2014-07-11 | 2014-07-11 | Rotor-core stamped sheet of three-phase frequency-conversion permanent magnet synchronous motor |
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| CN104079094A true CN104079094A (en) | 2014-10-01 |
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| CN201410328176.XA Pending CN104079094A (en) | 2014-07-11 | 2014-07-11 | Rotor-core stamped sheet of three-phase frequency-conversion permanent magnet synchronous motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901951A (en) * | 2015-04-23 | 2015-09-09 | 武汉理工大学 | Mobile terminal based cipher data processing and interaction method in Web application |
| CN105743252A (en) * | 2016-05-12 | 2016-07-06 | 张学义 | Production method of combined magnetic pole and invisible magnetic pole wheel hub driving motor rotor |
| CN105896847A (en) * | 2016-05-12 | 2016-08-24 | 张学义 | Method for producing combined permanent magnetic pole hub driven motor rotor |
| CN106452260A (en) * | 2016-11-30 | 2017-02-22 | 江苏久知电机技术有限公司 | Variable frequency driving permanent magnet synchronous motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097166A (en) * | 1990-09-24 | 1992-03-17 | Reuland Electric | Rotor lamination for an AC permanent magnet synchronous motor |
| CN201222669Y (en) * | 2008-05-23 | 2009-04-15 | 江苏安捷机电技术有限公司 | Rotor punching slice for permanent magnet motor |
| CN201985649U (en) * | 2011-04-21 | 2011-09-21 | 江苏安捷机电技术有限公司 | Rotor sheet of 160 rare-earth permanent magnet synchronous motor |
| CN102420478A (en) * | 2011-12-14 | 2012-04-18 | 大连钰霖电机有限公司 | Rotor lamination of permanent magnet motor |
| CN102891555A (en) * | 2012-10-11 | 2013-01-23 | 无锡市亨达电机有限公司 | Dual-purpose three-phase permanent magnet synchronous motor rotor structure for power frequency and frequency conversion control |
| CN204089382U (en) * | 2014-07-11 | 2015-01-07 | 江苏久知电机技术有限公司 | Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination |
-
2014
- 2014-07-11 CN CN201410328176.XA patent/CN104079094A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097166A (en) * | 1990-09-24 | 1992-03-17 | Reuland Electric | Rotor lamination for an AC permanent magnet synchronous motor |
| CN201222669Y (en) * | 2008-05-23 | 2009-04-15 | 江苏安捷机电技术有限公司 | Rotor punching slice for permanent magnet motor |
| CN201985649U (en) * | 2011-04-21 | 2011-09-21 | 江苏安捷机电技术有限公司 | Rotor sheet of 160 rare-earth permanent magnet synchronous motor |
| CN102420478A (en) * | 2011-12-14 | 2012-04-18 | 大连钰霖电机有限公司 | Rotor lamination of permanent magnet motor |
| CN102891555A (en) * | 2012-10-11 | 2013-01-23 | 无锡市亨达电机有限公司 | Dual-purpose three-phase permanent magnet synchronous motor rotor structure for power frequency and frequency conversion control |
| CN204089382U (en) * | 2014-07-11 | 2015-01-07 | 江苏久知电机技术有限公司 | Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901951A (en) * | 2015-04-23 | 2015-09-09 | 武汉理工大学 | Mobile terminal based cipher data processing and interaction method in Web application |
| CN104901951B (en) * | 2015-04-23 | 2017-11-10 | 武汉理工大学 | Code data processing based on mobile terminal and exchange method in a kind of Web applications |
| CN105743252A (en) * | 2016-05-12 | 2016-07-06 | 张学义 | Production method of combined magnetic pole and invisible magnetic pole wheel hub driving motor rotor |
| CN105896847A (en) * | 2016-05-12 | 2016-08-24 | 张学义 | Method for producing combined permanent magnetic pole hub driven motor rotor |
| CN106452260A (en) * | 2016-11-30 | 2017-02-22 | 江苏久知电机技术有限公司 | Variable frequency driving permanent magnet synchronous motor |
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Application publication date: 20141001 |
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