CN104079095A - Three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting - Google Patents
Three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting Download PDFInfo
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- CN104079095A CN104079095A CN201410328677.8A CN201410328677A CN104079095A CN 104079095 A CN104079095 A CN 104079095A CN 201410328677 A CN201410328677 A CN 201410328677A CN 104079095 A CN104079095 A CN 104079095A
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to a three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting. The three-phase permanent-magnet synchronous motor rotor punching sheet is an iron core punching sheet which is super-ultra-high in efficiency and suitable for a rotor of a high pull-out torque three-phase rare-earth permanent magnet synchronous motor and a rotor of a variable-frequency and variable-speed motor three-phase permanent magnet synchronous motor, and is used for a permanent magnet synchronous motor with a 132 base. The three-phase permanent-magnet synchronous motor rotor punching sheet is provided with a rotor punching sheet body made of a low-loss silicon steel sheet in a punching mode. Starting rod holes are evenly distributed on the outer circumference of the rotor punching sheet body, and W-shaped magnetic steel grooves are evenly formed in the rotor punching sheet body. A magnetic isolation bridge A is arranged between the lower portions of the starting rods and the magnetic steel grooves, and a magnetic isolation bridge B and a magnetic isolation bridge C are arranged between every two adjacent magnetic steel grooves. Rigidity reinforced screw holes and rotor shaft holes are formed in the rotor punching sheet body.
Description
Technical field
What line of the present invention started, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting is related is that a kind of line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, belong to super Ultra-High Efficiency, the public core stamping of rotor of high pull-out torque three-phase rare-earth permanent-magnet synchronous motor and frequency control three-phase permanent-magnetic synchronous motors, for the permanent magnet synchronous motor of 132 supports.
Background technology
Conventional rotor lamination of permanent magnet motor, because the design of rotor punching is unreasonable, makes the overload capacity of permanent magnet motor on the low side at present, causes normal generation step-out and scaling loss magneto; Under variable-frequency governor, magneto operation is stable not; Magnet steel is in operation and cracks and permanent magnet motor power factor is reduced, and armature supply increases, and stator copper loss increases, and Efficiency Decreasing, power savings are owed declines that is in operation of desirable and electromotive force, cause meritorious power saving rate decline.
Summary of the invention
The object of the invention is provides a kind of line to start for above-mentioned weak point, the public three-phase rare-earth permanent-magnet synchronous motor rotor punching of variable frequency starting, the line that is a kind of novelty starts, the three-phase rare-earth permanent-magnet synchronous motor rotor punching that variable frequency starting is public, three-phase permanent-magnetic synchronous motors (XY132-4) pull-out torque that adopts this rotor punching to produce is high, efficiency is high, power factor is high, rotor rigidity is good, pole field strength balance motor oscillating is little, also has rational unloaded back electromotive force, air-gap field saturation characteristic is controlled, to for frequency conversion permanent magnet motor except above-mentioned advantage, good stability during load change, power savings is obvious.
A kind of line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting takes following scheme to realize:
A kind of line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, the rotor punching body with low-loss punching silicon-steel, the external circumference uniform distribution starting bar of rotor punching hole, the uniform W shape of rotor punching body magnet steel groove, below starting bar hole and between magnet steel groove, be provided with every magnetic bridge A, between two magnet steel grooves, be provided with every magnetic bridge B and C, rigidity be set on rotor punching body and strengthen screw hole and rotor shaft hatch.
Three phase variable frequency permanent-magnet synchronous motor rotor iron-core lamination structure has rotor punching body (50W350), the uniform starting bar of rotor punching excircle hole, starting bar hole is provided with 32, diameter is ￠ 6.0～6.1mm, below starting bar hole, rotor punching body is uniform apart from shape square shape 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 provided with every magnetic bridge B, between two magnet steel grooves, be provided with every magnetic bridge C, on rotor punching, 12 rigidity strengthen screw hole, rotor punching body 1 middle part has been provided with rotor shaft hatch, magnet steel groove becomes W shape to arrange.
Described rotor punching body diameter is Φ 134～134.03mm.
Described starting bar bore dia is Φ 6.0～6.1mm.
Described startup thick stick hole is provided with 32, circumference uniform distribution.
What between described startup thick stick hole and magnet steel groove, arrange is 8.6～8.65mm every magnetic bridge A width, and length is 22.2～22.3mm.
Described magnet steel well width is 4.3～4.35mm, and length is 22.2～22.3mm.
Between two described radial magnet steel grooves, every magnetic bridge C width, be 2.8～3.0mm, length is 22.2～22.3mm.
Two described magnet steel groove interval magnetic bridge C, width and length are 3.80-～3.85mm.
It is 12 that described rigidity strengthens screw hole, and diameter is Φ 6.1～6.15mm, and described rigidity strengthens screw hole and is provided with 12, presses close to magnet steel groove fastening for 1Cr18Niq stainless steel screw rod, and the rigidity that rotor iron core lamination had been weakened is already implemented auxiliary strong.
Described rotor punching body, each magnetic pole and magnetic field is independent, can make each magnetic pole and magnetic field magnetic line of force of rotor move towards clear, each pole field even intensity, unilateral magnetic force is even.
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.
Line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting is sleeved on pressurization on plug by the sheet number of 2 times of core lengths while using and tightens, be assembled into rotor core, after cast aluminium, send into heating furnace heating, after heating by rotor hot jacket on main shaft, with spindle hole positioning car cylindrical, 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.
Line of the present invention starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, make the three-phase permanent-magnetic synchronous motors (XY132 type) that adopts this rotor punching to produce, pull-out torque is high, and efficiency is high, power factor (PF) is high, rotor rigidity is good, and pole field strength balance motor oscillating is little, also has rational unloaded back electromotive force, Gas gap magnetic field saturation characteristic is controlled, to on frequency conversion permanent magnet motor except above-mentioned advantage, good stability during load change, power savings is obvious.Three-phase permanent-magnetic synchronous motors rotor punching of the present invention, is suitable for XY132 line and starts three-phase permanent-magnetic synchronous motors, also applicable to variable frequency starting three-phase permanent-magnetic synchronous motors.
The line of novelty starts, the public three-phase rare-earth permanent-magnet synchronous motor rotor punching of variable frequency starting, and its invention feature has:
1, multiple spot, every magnetic, reduces the leakage of magnetic field intensity as far as possible
Line of the present invention starts, be designed with A, B in the public three-phase rare-earth permanent-magnet synchronous motor rotor punching of variable frequency starting, 4 of C, D be every magnetic bridge, especially every magnetic bridge B, very crucial to guaranteeing the uniformity of every pole field intensity.
2, magnet steel groove intensity obtains reinforcement
Line of the present invention starts, the public three-phase permanent-magnetic synchronous motors rotor sheet 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 obtain significantly reinforcement.
3, frequency control three-phase permanent-magnetic synchronous motors operation stability gets a promotion
The startup cage of rotor punching design of the present invention is 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, start cage due to inoperative, so on frequency control three-phase permanent-magnetic synchronous motors rotor punching, do not design starting bar hole.
Rotor punching of the present invention, for frequency control three-phase frequency-conversion speed-regulation permanent magnet motor, can make permanent magnet motor start-up cage performance damping cage function, and when load change, operation is very stable.
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 each magnetic pole in rotor punching of the present invention is independently, isolation, the magnetic field intensity that causes each magnetic pole is balanced, and magnetic loss is little, and unilateral magnetic force is minimum, vibrates little during permanent magnet motor operation.
Accompanying drawing explanation
Below with reference to accompanying drawing, the invention will be further described
Fig. 1 is that line starts, the public three-phase permanent-magnetic synchronous motors rotor punching structure of variable frequency starting schematic diagram.
Fig. 2 is that Fig. 1 line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting C partial enlarged drawing.3 is magnet steel groove, C be between two magnet steels every magnetic bridge.
Fig. 3 is that Fig. 1 line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting D partial enlarged drawing.3 is magnet steel groove, D be between two magnet steels every magnetic bridge.
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, 2, 3, line starts, the public three-phase permanent-magnetic synchronous motors rotor punching structure of variable frequency starting has rotor punching body 1, rotor punching body 1 excircle is evenly equipped with starting bar hole 2, the uniform W shape of rotor punching body 1 magnet steel groove 3 below starting bar hole 2, following in starting bar hole 2, magnet steel groove 3 tops arrange every magnetic bridge A, between two radial magnet steel grooves, be provided with every magnetic bridge B, between two major parts magnet steel groove, be provided with every magnetic bridge C, on rotor punching body 1, be provided with 12 rigidity and strengthen screw hole 5, rotor punching body 1 middle part has been provided with rotor shaft hatch 6, 3 one-tenth W shapes of magnet steel groove.
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, circumference uniform distribution.
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, every magnetic bridge C width, be 2.8～3.0mm, length is 22.2～22.3mm.
Two described magnet steel groove interval magnetic bridge C, width and length are 3.80～3.85mm.
It is 12 that described rigidity strengthens screw hole 5, and diameter is Φ 6.1～6.15mm, and described rigidity strengthens screw hole and is provided with 12, presses close to magnet steel groove fastening for 1Cr18Niq stainless steel screw rod, and the rigidity that rotor iron core lamination had been weakened is already implemented auxiliary strong.
Described rotor punching body 1, each magnetic pole and magnetic field is independent, can make each magnetic pole and magnetic field magnetic line of force of rotor move towards clear, each pole field even intensity, unilateral magnetic force is even.
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.
Claims (10)
- A line start, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, it is characterized in that: the rotor punching body with low-loss punching silicon-steel, the external circumference uniform distribution starting bar of rotor punching hole, the uniform W shape of rotor punching body magnet steel groove, below starting bar hole and between magnet steel groove, be provided with every magnetic bridge A, between two magnet steel grooves, be provided with every magnetic bridge B and C, rigidity be set on rotor punching body and strengthen screw hole and rotor shaft hatch.
- 2. line startup according to claim 1, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, is characterized in that: described rotor punching body diameter is Φ 134～134.03 ㎜.
- 3. line startup according to claim 1, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, is characterized in that described starting bar bore dia is Φ 6.0～6.1 ㎜.
- 4. line startup according to claim 1, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, is characterized in that: described starting bar hole is provided with 32, circumference uniform distribution.
- Line according to claim 1 start, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, it is characterized in that: between described starting bar hole and magnet steel groove, arrange every magnetic bridge A, width is 8.60～8.65 ㎜, length is 22.2～22.3 ㎜.
- 6. line startup according to claim 1, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, is characterized in that: described magnet steel slot length is 22.2～22.3 ㎜ magnet steel well width 4.3～4.35 ㎜.
- Line according to claim 1 start, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, it is characterized in that: the width every magnetic bridge B between the magnet steel groove of two described arranged radiallys is 2.8～3.0 ㎜, every width and the length of magnetic bridge C, be 3.80～3.85 ㎜.
- Line according to claim 1 start, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, it is characterized in that: described rigidity strengthens screw hole and is provided with 12, for 1Cr18Niq stainless steel screw rod, press close to magnet steel groove fastening, the rigidity of rotor iron core lamination is implemented auxiliary strong.
- Line according to claim 1 start, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, it is characterized in that: described rotor punching body, each magnetic pole and magnetic field is independent, can make each magnetic pole and magnetic field magnetic line of force of rotor move towards clear, each pole field even intensity, unilateral magnetic force is even.
- 10. line startup according to claim 1, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting, is characterized in that: rotor punching body adopts low-loss silicon steel sheet 50W350.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328677.8A CN104079095A (en) | 2014-07-11 | 2014-07-11 | Three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328677.8A CN104079095A (en) | 2014-07-11 | 2014-07-11 | Three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting |
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| Publication Number | Publication Date |
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| CN104079095A true CN104079095A (en) | 2014-10-01 |
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| CN201410328677.8A Pending CN104079095A (en) | 2014-07-11 | 2014-07-11 | Three-phase permanent-magnet synchronous motor rotor punching sheet suitable for both line starting and variable frequency starting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534334A (en) * | 2015-07-15 | 2018-01-02 | 三菱电机株式会社 | Rotor, motor, compressor and refrigerating and air-conditioning |
| CN110720169A (en) * | 2017-06-05 | 2020-01-21 | 株式会社丰田自动织机 | Rotor structure of motor |
| CN111525717A (en) * | 2020-06-02 | 2020-08-11 | 华育昌(肇庆)智能科技研究有限公司 | Signal feedback rare-earth permanent magnet synchronous motor rotor |
| CN111934456A (en) * | 2020-09-19 | 2020-11-13 | 浙江西菱股份有限公司 | Embedded permanent magnet variable frequency motor rotor |
Citations (5)
| 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 |
| 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 |
| CN204046296U (en) * | 2014-07-11 | 2014-12-24 | 江苏久知电机技术有限公司 | Line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting |
-
2014
- 2014-07-11 CN CN201410328677.8A patent/CN104079095A/en active Pending
Patent Citations (5)
| 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 |
| 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 |
| CN204046296U (en) * | 2014-07-11 | 2014-12-24 | 江苏久知电机技术有限公司 | Line starts, the public three-phase permanent-magnetic synchronous motors rotor punching of variable frequency starting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534334A (en) * | 2015-07-15 | 2018-01-02 | 三菱电机株式会社 | Rotor, motor, compressor and refrigerating and air-conditioning |
| CN107534334B (en) * | 2015-07-15 | 2019-06-21 | 三菱电机株式会社 | Rotor, motor, compressor and refrigerating and air-conditioning |
| CN110720169A (en) * | 2017-06-05 | 2020-01-21 | 株式会社丰田自动织机 | Rotor structure of motor |
| CN111525717A (en) * | 2020-06-02 | 2020-08-11 | 华育昌(肇庆)智能科技研究有限公司 | Signal feedback rare-earth permanent magnet synchronous motor rotor |
| CN111934456A (en) * | 2020-09-19 | 2020-11-13 | 浙江西菱股份有限公司 | Embedded permanent magnet variable frequency motor rotor |
| CN111934456B (en) * | 2020-09-19 | 2021-07-27 | 浙江西菱股份有限公司 | Embedded permanent magnet variable frequency motor rotor |
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Application publication date: 20141001 |