CN106340983A - Built-in tangential type rotor punching sheet of permanent-magnetic motor - Google Patents
Built-in tangential type rotor punching sheet of permanent-magnetic motor Download PDFInfo
- Publication number
- CN106340983A CN106340983A CN201610983088.2A CN201610983088A CN106340983A CN 106340983 A CN106340983 A CN 106340983A CN 201610983088 A CN201610983088 A CN 201610983088A CN 106340983 A CN106340983 A CN 106340983A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- notch
- motor
- rotor punching
- permanent
- 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
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
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- 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)
Abstract
The invention mainly relates to a built-in tangential type rotor punching sheet of a permanent-magnetic motor, and belongs to the technical field of permanent-magnetic motors. The size of a notch of a rotor permanent magnet is adjusted, the proportion of the width of the permanent magnet notch to the thickness of a permanent magnet groove is controlled within the range from 0.6 to 0.8, and the height b from the notch to the external diameter of the rotor is set within the range of 1.5-2.5mm. The rotor punching sheet of such structure reduces a magnetic flux leakage factor and the motor cost, the power density of the motor is improved, the gullet torque is reduced, and the motor performance is improved. The rotor punching sheet is also simple in structure, convenient to process, lower in cost and suitable for popularization and application.
Description
Technical field
The invention belongs to permanent magnet motor technical field, relate generally to a kind of built-in tangential permanent magnetic motor rotor punching sheet.
Background technology
Permanent magnet motor has small volume, many advantages, such as lightweight, dynamic property is steady.In recent years, permanent magnet motor
Research and extension application be subject to people most attention.But, the leakage factor of built-in tangential permanent magnetic electric motor structure is relatively
Greatly, increase motor cost, directly affect the performance of magneto.
Content of the invention
Goal of the invention
In order to solve above-mentioned problem, the invention provides a kind of built-in tangential permanent magnetic motor rotor punching sheet, by adjusting
Whole rotor permanent magnet otch size, to reduce leakage factor, reduces motor cost, improves the power density of motor, reduces
Cogging torque, improves the performance of motor.
Technical scheme
The present invention is achieved through the following technical solutions:
A kind of built-in tangential permanent magnetic motor rotor punching sheet it is characterised in that: permanent magnet trough, permanent magnet trough are had on rotor punching
On have notch, permanent magnet trough and notch are symmetrically uniform along rotor punching circumference；The width a of each notch is along permanent magnet trough
Longitudinal axis are symmetrical；The height b of notch is the distance at permanent magnet notch to rotor diameter.
The ratio of the width l of the width a of notch and permanent magnet trough is between 0.6-0.8.
The height b of notch is 1.5-2.5mm.
Advantage and effect
The invention has the advantages that and beneficial effect:
It is an advantage of the invention that by the adjustment to rotor permanent magnet otch size, reducing leakage factor, reduce motor
Cost, improves the power density of motor, reduces cogging torque, improves the overall performance of motor.
Brief description
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the structure partial enlarged drawing of the present invention.
Fig. 3 is rotor closed configuration magnetic circuit figure.
Fig. 4 is rotor openings structure magnetic circuit figure.
Accompanying drawing 2 description of symbols:
1. rotor punching, 2. permanent magnet trough, 3. notch.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings:
The invention provides a kind of built-in tangential permanent magnetic motor rotor stamping sheet structure.Big by adjusting rotor permanent magnet otch
Little reduce motor cost reducing leakage factor, improve the performance of motor.
Described built-in tangential permanent magnetic motor rotor punching sheet it is characterised in that: permanent magnet trough 2 is had on rotor punching 1, forever
Notch 3 is had on magnet slot 2, permanent magnet trough 2 and notch 3 are symmetrically uniform along rotor punching 1 circumference；The width a of each notch 3
Symmetrical along permanent magnet trough 2 longitudinal axis；The height b of notch 3 is the distance at permanent magnet notch to rotor diameter.So arrange
The leakage factor of built-in structure can be reduced, and then reduce the usage amount of permanent magnet material.
The width l(of the width a of described notch 3 and permanent magnet trough 2 is permanent magnet magnetizing direction thickness) ratio in 0.6-
Between 0.8.So setting can reduce cogging torque and the leakage factor of this built-in structure, so that motor performance is obtained most preferably
Select.
The height b of described notch 3 is 1.5-2.5mm.This setting can meet technological requirement and can reduce leakage factor.
Embodiment:
Wherein a is permanent magnet width of rebate, and b is permanent magnet trough width for the distance height of permanent magnet notch to rotor diameter, l,
When rotor closed configuration magnetic circuit, as shown in figure 3, leakage factor is 1.35；When rotor openings structure magnetic circuit, a/l is 0.6
When, notch to external diameter apart from b for 2mm when, as shown in figure 4, leakage factor be 1.14.Can be opened with rotor permanent magnet groove by comparing
Leakage factor after mouthful reduces, and decreases motor cost, improves the overall performance of motor.
The operation principle of the present invention is as follows:
By the adjustment to rotor permanent magnet otch size, reduce leakage factor, decrease motor cost, improve motor
Power density, reduce cogging torque, improve the overall performance of motor.
Claims (3)
1. a kind of built-in tangential permanent magnetic motor rotor punching sheet it is characterised in that: permanent magnet trough (2) is had on rotor punching (1),
Notch (3) is had on permanent magnet trough (2), permanent magnet trough (2) and notch (3) are symmetrically uniform along rotor punching (1) circumference；Each
The width a of notch (3) is symmetrical along permanent magnet trough (2) longitudinal axis；The height b of notch (3) is to arrive rotor at permanent magnet notch
The distance of external diameter.
2. built-in tangential permanent magnetic motor rotor punching sheet according to claim 1 it is characterised in that: the width a of notch (3)
And the ratio of the width l of permanent magnet trough (2) is between 0.6-0.8.
3. built-in tangential permanent magnetic motor rotor punching sheet according to claim 1 it is characterised in that: the height b of notch (3)
For 1.5-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983088.2A CN106340983A (en) | 2016-11-09 | 2016-11-09 | Built-in tangential type rotor punching sheet of permanent-magnetic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983088.2A CN106340983A (en) | 2016-11-09 | 2016-11-09 | Built-in tangential type rotor punching sheet of permanent-magnetic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106340983A true CN106340983A (en) | 2017-01-18 |
Family
ID=57841752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610983088.2A Pending CN106340983A (en) | 2016-11-09 | 2016-11-09 | Built-in tangential type rotor punching sheet of permanent-magnetic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106340983A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2518688A (en) * | 2013-09-30 | 2015-04-01 | Jaguar Land Rover Ltd | Electric machine and method of operation thereof |
| CN104753214A (en) * | 2013-12-30 | 2015-07-01 | 现代自动车株式会社 | Rotor of interior permanent magnet motor |
| WO2015185847A2 (en) * | 2014-06-05 | 2015-12-10 | Valeo Equipements Electriques Moteur | Flux-concentrating rotor with permanent magnets for rotary electric machine |
| CN105391264A (en) * | 2015-12-21 | 2016-03-09 | 哈尔滨工业大学 | Combination magnetic pole type build-in tangential permanent magnet synchronous motor |
| CN206195497U (en) * | 2016-11-09 | 2017-05-24 | 沈阳工业大学 | Built -in tangential formula permanent -magnet machine rotor punching |
-
2016
- 2016-11-09 CN CN201610983088.2A patent/CN106340983A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2518688A (en) * | 2013-09-30 | 2015-04-01 | Jaguar Land Rover Ltd | Electric machine and method of operation thereof |
| CN104753214A (en) * | 2013-12-30 | 2015-07-01 | 现代自动车株式会社 | Rotor of interior permanent magnet motor |
| WO2015185847A2 (en) * | 2014-06-05 | 2015-12-10 | Valeo Equipements Electriques Moteur | Flux-concentrating rotor with permanent magnets for rotary electric machine |
| CN105391264A (en) * | 2015-12-21 | 2016-03-09 | 哈尔滨工业大学 | Combination magnetic pole type build-in tangential permanent magnet synchronous motor |
| CN206195497U (en) * | 2016-11-09 | 2017-05-24 | 沈阳工业大学 | Built -in tangential formula permanent -magnet machine rotor punching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xiaoyu Inventor after: Sun Ning Inventor after: Chen Lixiang Inventor after: Wang Kaidong Inventor before: Wang Xiaoyu Inventor before: Sun Ning Inventor before: Chen Lixiang |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170118 |