CN107026548A - The rotor punching of internal permanent magnet synchronous motor performance can be optimized - Google Patents
The rotor punching of internal permanent magnet synchronous motor performance can be optimized Download PDFInfo
- Publication number
- CN107026548A CN107026548A CN201710369901.1A CN201710369901A CN107026548A CN 107026548 A CN107026548 A CN 107026548A CN 201710369901 A CN201710369901 A CN 201710369901A CN 107026548 A CN107026548 A CN 107026548A
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- China
- Prior art keywords
- hole
- rotor punching
- hook
- magnetic bridge
- synchronous motor
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Links
- 238000004080 punching Methods 0.000 title claims abstract description 36
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
It can optimize the rotor punching of internal permanent magnet synchronous motor performance the present invention relates to a kind of, it includes rotor punching, mounting hole is offered in the center of rotor punching, equally distributed air vent is offered on the rotor punching on the outside of mounting hole, air vent is in crescent, is offered on the rotor punching on the outside of each air vent of correspondence every magnetic bridge hole, hook-type hole is connected with the both ends every magnetic bridge hole, the bill in hook-type hole outwards, hook-type hole with every angle formed by magnetic bridge hole be acute angle.Using the rotor punching of the present invention, the efficiency of motor can be greatly improved, the electromagnetic noise of motor can be reduced in the process of running, makes motor starting currents small, torque is big.
Description
Technical field
The present invention relates to a kind of part of permagnetic synchronous motor, built-in type permanent-magnet can be optimized present invention relates especially to one kind
The rotor punching of synchronous motor performance.
Background technology
Permanent magnetic synchronous motor structure is simple, small volume, lightweight, the small and efficiency high of loss, and it is compared with direct current generator, it
Not the shortcomings of not having the commutator of direct current generator and brush.Compared with asynchronous machine, it is not due to needing idle exciting current, thus
Efficiency high, power factor is high, and torque ratio of inertias is big, and stator current and stator resistance loss reduce, and rotor parameter can be surveyed, controlled
Performance is good；But he is compared with asynchronous machine, also there are the difficult points such as cost height, difficulty in starting.
Because the magnetic field of permagnetic synchronous motor is produced by permanent magnet, so as to avoid passing through exciting current to produce magnetic field
Caused by excitation loss（Copper loss）.
The external characteristics efficiency curve of permagnetic synchronous motor compares asynchronous machine, and its efficiency value in underloading is much higher, this
Be permagnetic synchronous motor in terms of energy-conservation, an advantage maximum compared to asynchronous machine.Because usual motor is in driving load,
Few cases are run in full-load power, because：One side user, in choice of electrical machine, is usually the limit according to load
Operating mode determines power of motor, and the chance that limiting condition occurs is seldom, meanwhile, to prevent from burning electricity in unusual service condition
Machine, the power that user also can be further to motor stays allowance；On the other hand, designer is when designing motor, to ensure motor
Reliability, it will usually on the power level that user requires, further stay certain margin of power, so cause in actual motion
Motor 90% above is being operated in rated power below 70%.Permagnetic synchronous motor remains to keep higher efficiency in light loading district,
Its efficiency is higher than asynchronous machine more than 20%.
One of the motor and electric system component production base of China as whole world maximum, but Chinese motor section
Energy situation allows of no optimist.Current domestic wide variety of YE2 Series Motors efficiency average value is 90.08%；And international superelevation
Imitate motor（IE4）Efficiency average value be 93.3%.Therefore, the electric system efficiency of lifting domestic product is not only to China's warp
Ji is of great advantage, is also beneficial to the sustainable energy supply of international market.
At present, Design of PM Motor efficiency is equivalent or higher than international ultra high efficiency motor（IE4）Efficiency.So rationally
Effective design magneto, the characteristics of preferably magneto efficiency high is played on the basis of saving material.
The rotor punching of conventional permagnetic synchronous motor performance is as shown in figure 1, it is in the center of rotor punching 1 now
Mounting hole 1.1 is offered, equally distributed air vent 1.2 is offered on the rotor punching 1 in the outside of mounting hole 1.1, in correspondence
Offered on the rotor punching 1 in each outside of air vent 1.2 every magnetic bridge hole 1.3, it every magnetic bridge hole 1.3 be vertical bar shaped.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art to improve efficiency, reduction electromagnetism there is provided one kind to make an uproar
Sound can optimize the rotor punching of internal permanent magnet synchronous motor performance.
The technical scheme provided according to the present invention, it is described to optimize the rotor punching of internal permanent magnet synchronous motor performance,
Including rotor punching, mounting hole is offered in the center of rotor punching, is offered on the rotor punching on the outside of mounting hole
Equally distributed air vent, air vent is in crescent, is offered on the rotor punching on the outside of each air vent of correspondence every magnetic bridge
Hole, is connected with hook-type hole at the both ends every magnetic bridge hole, the bill in hook-type hole outwards, hook-type hole with every angle formed by magnetic bridge hole
For acute angle.
The length in the hook-type hole is 17.5 ~ 19.5mm, hook-type hole and rotor punching it is the distance between cylindrical for 1.5 ~
3.5mm, hook-type hole with every corner dimension formed by magnetic bridge hole be 26 ~ 32 °.
The edge in the hook-type hole and hook-type hole pass through circular arc of the radius for 2 ~ 4mm with the junction every magnetic bridge hole
Seamlessly transit.
Using the rotor punching of the present invention, the efficiency of motor can be greatly improved, the electricity of motor can be reduced in the process of running
Magnetic noise.
Brief description of the drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural representation of the present invention.
Embodiment
With reference to specific embodiment, the invention will be further described.
This can optimize the rotor punching of internal permanent magnet synchronous motor performance, including rotor punching 1, in rotor punching 1
Center offers mounting hole 1.1, and equally distributed air vent is offered on the rotor punching 1 in the outside of mounting hole 1.1
1.2, air vent 1.2 is in crescent, is offered on the rotor punching 1 in each outside of air vent 1.2 of correspondence every magnetic bridge hole 1.3,
Be connected with hook-type hole 1.4 at the both ends every magnetic bridge hole 1.3, the bill in hook-type hole 1.4 outwards, hook-type hole 1.4 with every magnetic bridge hole
Angle formed by 1.3 is acute angle.
The length in the hook-type hole 1.4 is 17.5 ~ 19.5mm, hook-type hole 1.4 and rotor punching 1 it is the distance between cylindrical
For 1.5 ~ 3.5mm, hook-type hole 1.4 with every angle formed by magnetic bridge hole 1.3 be 26 ~ 32 °.
At present, common rotor sheet of permanent magnet motor does not have using common every magnetic bridge hole 1.3 every the two ends in magnetic bridge hole 1.3
There is connection hook-type hole 1.4, it makes motor-field by the way that magnetic field concentration point occurs when the magnetic bridge hole 1.3, because magnetic field concentration point
Appearance can cause motor harmonic wave increase so that electric efficiency reduce.The present invention is equal at each both ends every magnetic bridge hole 1.3
Hook-type hole 1.4 is connected, motor-field can be made by occurring without magnetic field concentration point when the magnetic bridge hole 1.3 and hook-type hole 1.4, thus
Improve the efficiency of motor.
And the edge in hook-type hole 1.4 and hook-type hole 1.4 and the junction every magnetic bridge hole 1.3 by radius be 2 ~
4mm circular arc is seamlessly transitted, and it reduces motor harmonic wave, further increases the efficiency of motor.
Using the rotor punching of the present invention, the efficiency of motor can be greatly improved, the electricity of motor can be reduced in the process of running
Magnetic noise.
Claims (3)
1. a kind of can optimize the rotor punching of internal permanent magnet synchronous motor performance, including rotor punching（1）, in rotor punching
（1）Center offer mounting hole（1.1）, in mounting hole（1.1）The rotor punching in outside（1）On offer and be uniformly distributed
Air vent（1.2）, air vent（1.2）In crescent, in each air vent of correspondence（1.2）The rotor punching in outside（1）On open
Provided with every magnetic bridge hole（1.3）, it is characterized in that：Every magnetic bridge hole（1.3）Both ends be connected with hook-type hole（1.4）, hook-type hole
（1.4）Bill outwards, hook-type hole（1.4）With every magnetic bridge hole（1.3）Formed angle is acute angle.
2. the rotor punching of internal permanent magnet synchronous motor performance can be optimized as claimed in claim 1, it is characterized in that：The hook
Shape hole（1.4）Length be 17.5 ~ 19.5mm, hook-type hole（1.4）With rotor punching（1）It is the distance between cylindrical for 1.5 ~
3.5mm, hook-type hole（1.4）With every magnetic bridge hole（1.3）Formed angle is 26 ~ 32 °.
3. the rotor punching of internal permanent magnet synchronous motor performance can be optimized as claimed in claim 1, it is characterized in that：The hook
Shape hole（1.4）Edge and hook-type hole（1.4）With every magnetic bridge hole（1.3）Junction pass through radius be 2 ~ 4mm circle
Arc is seamlessly transitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369901.1A CN107026548A (en) | 2017-05-23 | 2017-05-23 | The rotor punching of internal permanent magnet synchronous motor performance can be optimized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369901.1A CN107026548A (en) | 2017-05-23 | 2017-05-23 | The rotor punching of internal permanent magnet synchronous motor performance can be optimized |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107026548A true CN107026548A (en) | 2017-08-08 |
Family
ID=59528757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710369901.1A Pending CN107026548A (en) | 2017-05-23 | 2017-05-23 | The rotor punching of internal permanent magnet synchronous motor performance can be optimized |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107026548A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916544A (en) * | 2011-08-01 | 2013-02-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor structure, permanent-magnet synchronous motor and variable-frequency compressor |
| CN103280904A (en) * | 2013-05-03 | 2013-09-04 | 苏州和鑫电气股份有限公司 | Double-layer V-shaped built-in permanent magnet motor rotor for electric automobile |
| CN204761190U (en) * | 2015-06-19 | 2015-11-11 | 广东美芝制冷设备有限公司 | Rotor subassembly and rotary compressor who has it |
| CN206850642U (en) * | 2017-05-23 | 2018-01-05 | 中达电机股份有限公司 | The rotor punching of internal permanent magnet synchronous motor performance can be optimized |
-
2017
- 2017-05-23 CN CN201710369901.1A patent/CN107026548A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916544A (en) * | 2011-08-01 | 2013-02-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor structure, permanent-magnet synchronous motor and variable-frequency compressor |
| CN103280904A (en) * | 2013-05-03 | 2013-09-04 | 苏州和鑫电气股份有限公司 | Double-layer V-shaped built-in permanent magnet motor rotor for electric automobile |
| CN204761190U (en) * | 2015-06-19 | 2015-11-11 | 广东美芝制冷设备有限公司 | Rotor subassembly and rotary compressor who has it |
| CN206850642U (en) * | 2017-05-23 | 2018-01-05 | 中达电机股份有限公司 | The rotor punching of internal permanent magnet synchronous motor performance can be optimized |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170808 |