CN110233529A - Rotor of motor and motor - Google Patents
Rotor of motor and motor Download PDFInfo
- Publication number
- CN110233529A CN110233529A CN201910595009.4A CN201910595009A CN110233529A CN 110233529 A CN110233529 A CN 110233529A CN 201910595009 A CN201910595009 A CN 201910595009A CN 110233529 A CN110233529 A CN 110233529A
- Authority
- CN
- China
- Prior art keywords
- rotor
- motor
- exciting force
- magnetic
- ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000004088 simulation Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- H02K1/27—Rotor cores with permanent magnets
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a rotor of a motor and the motor, the rotor of the motor comprises: the rotor body is provided with a plurality of magnetic steel grooves; the magnetic steel is arranged in the magnetic steel groove; the thickness of magnet steel is T, the magnetic bridge width between magnet steel N, S interelectrode is B, wherein, L equals B/2, then the ratio L/T between L and T is: 0.5-1. According to the simulation analysis result, when the L/T is 0.5-1, the 36 frequency multiplication electromagnetic exciting force and the 72 frequency multiplication electromagnetic exciting force of the motor are both smaller, so that the 36 frequency multiplication electromagnetic exciting force and the 72 frequency multiplication electromagnetic exciting force of the motor can be effectively reduced by enabling the L/T to be 0.5-1, and further the noise of the motor is effectively reduced.
Description
Technical field
The present invention relates to power drive technical fields, and in particular to a kind of rotor and motor of motor.
Background technique
As energy-saving and environment-friendly concept is more more and more universal, welcome of the new-energy automobile increasingly by market, electric drive is made
For one ring of key of new-energy automobile energy conversion, there is very big influence to the comfort of new-energy automobile.
For new energy vehicle without the masking effect of engine, electric drive and electric-control system noise become Main Noise Sources, with
Development of the driving motor towards directions such as wide range speed control section, higher revolving speed, lightweights, reduce electro-magnetic exciting force, and then reduce
The noise of motor becomes the generally pursuit of industry.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome the electro-magnetic exciting force of motor in the prior art it is larger,
The biggish defect of noise, to provide the rotor and motor of a kind of motor that can reduce electro-magnetic exciting force, reduce noise.
The present invention provides a kind of rotor of motor, comprising:
Rotor body is equipped with multiple magnetic slots；
Multiple magnet steel are set in the corresponding magnetic slot；The magnet steel with a thickness of T, N, S interpolar of the magnet steel
Magnetic bridge width is B, wherein L=B/2, then the ratio L/T between L and T are as follows: 0.5-1.
Ratio L/T between L and T are as follows: 0.6-0.8.
Ratio L/T between L and T are as follows: 0.6-0.65.
Ratio L/T between L and T are as follows: 0.65-0.75.
The rotor be power be 150kW-200kW motor rotor.
The rotor be power be 200kW motor rotor.
T=8mm, L 5mm-9mm.
The rotor is the rotor of magneto.
The rotor is the rotor of embedded magneto.
The present invention also provides a kind of motors, including above-mentioned rotor.
Technical solution of the present invention has the advantages that
1. the rotor of motor provided by the invention, comprising: rotor body is equipped with multiple magnetic slots；Multiple magnet steel, be set to pair
In the magnetic slot answered；The magnet steel with a thickness of T, the magnetic bridge width of N, S interpolar of the magnet steel is B, wherein L=B/
2, then the ratio L/T between L and T are as follows: 0.5-1.According to simulation analysis as a result, when L/T be 0.5-1 when, 36 frequencys multiplication of motor and
The electro-magnetic exciting force of 72 frequencys multiplication is smaller, therefore, by the present invention in that L/T is 0.5-1,36 frequencys multiplication of motor can be effectively reduced
And 72 frequency multiplication electro-magnetic exciting force, and then effective noise reduction is carried out to motor.
2. the rotor of motor provided by the invention, the ratio L/T between L and T are as follows: 0.6-0.8.It in this way can be more efficient
Ground reduces by 36 frequencys multiplication of motor and the electro-magnetic exciting force of 72 frequencys multiplication, and then carries out significantly more efficient noise reduction to motor.
3. the rotor of motor provided by the invention, the ratio L/T between L and T are as follows: 0.6-0.65.In this way can more added with
Effect ground reduces the electro-magnetic exciting force of 36 frequencys multiplication of motor.
4. the rotor of motor provided by the invention, the ratio L/T between L and T are as follows: 0.65-0.75.In this way can more added with
Effect ground reduces the electro-magnetic exciting force of 72 frequencys multiplication of motor.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic front view of the rotor of the motor provided in the first embodiment of the invention；
Fig. 2 is the partial structure diagram of rotor shown in FIG. 1；
Fig. 3 is the simulation analysis schematic diagram between the L/T and exciting force density of the rotor of embedded magneto；
Description of symbols:
1- rotor body, 2- magnet steel, 3- magnetic slot.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
As shown in Figure 1-Figure 3, the present embodiment provides a kind of rotors of motor, including rotor body 1 and multiple magnet steel 2.
Rotor body 1 is equipped with multiple magnetic slots 3.
Each magnet steel 2 is respectively arranged in corresponding magnetic slot 3；Magnet steel 2 with a thickness of T, the magnetic bridge of N, S interpolar of magnet steel 2
Width is B, wherein L=B/2, then the ratio L/T between L and T are as follows: 0.5-1.
Simulation analysis according to Fig.3, is as a result, wherein exciting force density is directly proportional to exciting force, when L/T is 0.5-1
When, 36 frequencys multiplication of motor and the electromagnetic exciting force density of 72 frequencys multiplication are smaller, so, simulation analysis result shown in Fig. 3 can be with
It obtains, when L/T is 0.5-1,36 frequencys multiplication of motor and the electro-magnetic exciting force of 72 frequencys multiplication are smaller, and therefore, the present embodiment passes through
Make L/T 0.5-1,36 frequencys multiplication of motor and the electro-magnetic exciting force of 72 frequencys multiplication can be effectively reduced, and then motor is carried out effective
Noise reduction.Specifically, L/T can be the arbitrary value in 0.5-1, for example, it may be 0.5, being also possible to 1. can also be 0.9
Deng.
Further, according to Fig.3, simulation analysis is as a result, in order to more efficiently reduce by 36 frequencys multiplication of motor
And 72 frequency multiplication electro-magnetic exciting force, and then significantly more efficient noise reduction is carried out to motor, the ratio between the present embodiment preferred L and T
L/T are as follows: 0.6-0.8.Specifically, L/T can be the arbitrary value in 0.6-0.8, for example, it may be 0.6, it is also possible to 0.8, also
It can be 0.7 etc..
Simulation analysis according to Fig.3, is as a result, work as the electromagnetic exciting for needing more efficiently to reduce by 36 frequencys multiplication of motor
When power, ratio L/T that can further preferably between L and T are as follows: 0.6-0.65.Specifically, it can be 0.65 or 0.61 etc..
Simulation analysis according to Fig.3, is as a result, work as the electromagnetic exciting for needing more efficiently to reduce by 72 frequencys multiplication of motor
When power, ratio L/T that can further preferably between L and T are as follows: 0.65-0.75.Specifically, it can be 0.75 or 0.71 etc..
In the present embodiment, rotor be power be 150kW-200kW motor rotor.For example, rotor is also possible to function
Rate is the rotor of the motor of 150kW, 180kW or 200kW.When rotor be power be 200kW motor rotor, when T=8mm,
It is preferred that L is 5mm-9mm.As disposable embodiment, rotor is also possible to motor of the power outside 150kW-200kW range
Rotor.
In the present embodiment, rotor is the rotor of embedded magneto.As disposable embodiment, rotor can also
Think the rotor of other magnetoes.
The present embodiment also provides a kind of motor, including above-mentioned rotor.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of rotor of motor characterized by comprising
Rotor body (1) is equipped with multiple magnetic slots (3)；
Multiple magnet steel (2) are set in the corresponding magnetic slot (3)；The magnet steel (2) with a thickness of T, the magnet steel (2)
N, the magnetic bridge width of S interpolar is B, wherein L=B/2, then the ratio L/T between L and T are as follows: 0.5-1.
2. the rotor of motor according to claim 1, which is characterized in that the ratio L/T between L and T are as follows: 0.6-0.8.
3. the rotor of motor according to claim 2, which is characterized in that the ratio L/T between L and T are as follows: 0.6-0.65.
4. the rotor of motor according to claim 2, which is characterized in that the ratio L/T between L and T are as follows: 0.65-0.75.
5. the rotor of motor according to claim 1, which is characterized in that the rotor is that power is 150kW-200kW
The rotor of motor.
6. the rotor of motor according to claim 5, which is characterized in that the rotor is the motor that power is 200kW
Rotor.
7. the rotor of motor according to claim 6, which is characterized in that T=8mm, L 5mm-9mm.
8. the rotor of motor according to claim 1, which is characterized in that the rotor is the rotor of magneto.
9. the rotor of motor according to claim 8, which is characterized in that the rotor is turning for embedded magneto
Son.
10. a kind of motor, which is characterized in that including multiple rotors of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595009.4A CN110233529A (en) | 2019-07-03 | 2019-07-03 | Rotor of motor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595009.4A CN110233529A (en) | 2019-07-03 | 2019-07-03 | Rotor of motor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110233529A true CN110233529A (en) | 2019-09-13 |
Family
ID=67856680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910595009.4A Pending CN110233529A (en) | 2019-07-03 | 2019-07-03 | Rotor of motor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110233529A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000050546A (en) * | 1998-07-23 | 2000-02-18 | Aichi Emerson Electric Co Ltd | Rotor of permanent magnet motor |
| CN104485762A (en) * | 2014-11-18 | 2015-04-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor of permanent magnet synchronous motor and permanent magnet synchronous motor provided with same |
| CN106410999A (en) * | 2016-10-26 | 2017-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor having motor rotor and compressor |
| CN107529682A (en) * | 2017-07-18 | 2018-01-02 | 广州市昊志机电股份有限公司 | A kind of high-speed electric main shaft permagnetic synchronous motor of broad and constant power speed adjustable range |
| CN208209644U (en) * | 2018-06-20 | 2018-12-07 | 广东美芝制冷设备有限公司 | Magneto and compressor |
| CN109104012A (en) * | 2017-06-21 | 2018-12-28 | 上海海立电器有限公司 | Motor rotor, motor and DC frequency-changeable compressor |
| CN209823532U (en) * | 2019-07-03 | 2019-12-20 | 珠海格力电器股份有限公司 | Rotor of motor and motor |
-
2019
- 2019-07-03 CN CN201910595009.4A patent/CN110233529A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000050546A (en) * | 1998-07-23 | 2000-02-18 | Aichi Emerson Electric Co Ltd | Rotor of permanent magnet motor |
| CN104485762A (en) * | 2014-11-18 | 2015-04-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor of permanent magnet synchronous motor and permanent magnet synchronous motor provided with same |
| CN106410999A (en) * | 2016-10-26 | 2017-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor having motor rotor and compressor |
| CN109104012A (en) * | 2017-06-21 | 2018-12-28 | 上海海立电器有限公司 | Motor rotor, motor and DC frequency-changeable compressor |
| CN107529682A (en) * | 2017-07-18 | 2018-01-02 | 广州市昊志机电股份有限公司 | A kind of high-speed electric main shaft permagnetic synchronous motor of broad and constant power speed adjustable range |
| CN208209644U (en) * | 2018-06-20 | 2018-12-07 | 广东美芝制冷设备有限公司 | Magneto and compressor |
| CN209823532U (en) * | 2019-07-03 | 2019-12-20 | 珠海格力电器股份有限公司 | Rotor of motor and motor |
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| PB01 | Publication | ||
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