CN205693465U - A kind of permanent magnet machine rotor of high reluctance torque - Google Patents
A kind of permanent magnet machine rotor of high reluctance torque Download PDFInfo
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- CN205693465U CN205693465U CN201620589323.3U CN201620589323U CN205693465U CN 205693465 U CN205693465 U CN 205693465U CN 201620589323 U CN201620589323 U CN 201620589323U CN 205693465 U CN205693465 U CN 205693465U
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Abstract
The utility model discloses the permanent magnet machine rotor of a kind of high reluctance torque, including the ferrum core built up by stalloy, it is distributed along iron core circumference and organizes permanent magnet trough more, permanent magnet trough is built with permanent magnet, form multiple magnetic pole and polarity is N, S is alternately distributed, described permanent magnet is strip, the permanent magnet quantity of each magnetic pole is two, the permanent magnet of two strips is the V-type distribution of outward opening, between two permanent magnets, angle is 90 °～180 °, two permanent magnets are arranged symmetrically in pole center line both sides, and it is located remotely from rotor magnetic pole center, position near rotor outer circle week, air magnetic barrier it is provided with between two permanent magnets, described air magnetic barrier connects formation cavity with permanent magnet trough, it is provided with magnetic bridge in described air magnetic barrier.The technical solution of the utility model improves magnetic resistance of motor torque, compared with the motor of V-type magnet structure rotor in employing prior art, exports the permanent magnet consumption in the case of identical torque and decreases 25%, and the efficiency of motor does not reduces, and simple in construction.
Description
Technical field
This utility model belongs to technical field of motors, is specifically related to the permanent magnet machine rotor of a kind of high reluctance torque.
Background technology
Internal permanent magnet synchronous motor mainly by using high magnetic characteristics permanent magnet to improve motor performance, generally uses dilute
Great soil group permanent magnet, such as neodymium iron boron.In order to improve torque density, internal permanent magnet synchronous motor typically uses V-type permanent magnet to tie
Structure, and permanent magnet consumption is big.Owing to rare earth is non-renewable resources, and being state key strategic materials, it is expensive, limit
Make the extensive application of V-type internal permanent magnet synchronous motor, therefore, reduced by the reluctance torque improving permagnetic synchronous motor
Permanent magnet consumption is then particularly important.
Prior art Patent CN103404001 A proposes a kind of electro-motor, and its rotor uses at two V-type permanent magnets
Between the magnetic shielding space that interpolar cuts off is set, and this spatial form mainly presents trapezoidal, and then adjusts magnetic flux density
And effectively utilize permanent-magnet torque and reluctance torque, reduce permanent magnet consumption, but rotor strength is low, be unfavorable for motor fortune at a high speed
OK, rotor manufacturability is poor, is unfavorable for batch production.
Summary of the invention
For technical problem present in above-mentioned prior art, this utility model provides the permanent magnetism of a kind of high reluctance torque
Rotor, to solve, the permanent magnet usage amount of internal permanent magnet synchronous motor of the prior art is big, be not suitable for high-speed cruising
The problem poor with manufacturability.In conjunction with Figure of description, the technical solution of the utility model is as follows:
The permanent magnet machine rotor of a kind of high reluctance torque, including the iron core built up by stalloy, is distributed along iron core circumference
Organizing permanent magnet trough, permanent magnet trough, built with permanent magnet, forms multiple magnetic pole and polarity is that N, S are alternately distributed, described permanent magnetism more
Body is strip, and the permanent magnet quantity of each magnetic pole is two, and the permanent magnet of two strips is the V-type distribution of outward opening, two
Between permanent magnet, angle is 90 °～180 °, and two permanent magnets are arranged symmetrically in pole center line both sides, and are located remotely from rotor magnetic
Center, pole and the position near rotor outer circle week, be provided with air magnetic barrier, described air magnetic barrier and permanent magnetism between two permanent magnets
The connection of body groove forms cavity, is provided with magnetic bridge within described air magnetic hinders.
A kind of permanent magnet machine rotor of high reluctance torque, wherein, minimum range D between said two permanent magnet >=4mm.
The permanent magnet machine rotor of a kind of high reluctance torque, wherein, the described air magnetic barrier arranged between two permanent magnets is
Hexagon.
The permanent magnet machine rotor of a kind of high reluctance torque, wherein, the pole center line position at described air magnetic barrier has
Magnetic bridge.
Further, described magnetic bridge is one or two.
Compared with prior art, the beneficial effects of the utility model are:
Application the technical solution of the utility model, improves magnetic resistance of motor torque, with V-type permanent magnet in employing prior art
The motor of construction rotor is compared, and exports the permanent magnet consumption in the case of identical torque and decreases 25%, and the efficiency of motor does not reduces
Rotor structure intensity is high, is suitable for high speed operation of motor；Motor process is good, it is adaptable to batch production.
Accompanying drawing explanation
Fig. 1 is tradition V-type magnet structure rotor schematic diagram.
Fig. 2 is the structural representation of the permanent magnet machine rotor of high reluctance torque of the present utility model.
Fig. 3 is that the rotor punching structure after the permanent magnet machine rotor of high reluctance torque of the present utility model removes permanent magnet shows
It is intended to.
In figure:
1-rotor, 2-rotor core, 3-permanent magnet trough, 4a-permanent magnet A, 4b-permanent magnet B, 5-air magnetic hinders, 6-
Magnetic bridge.
Detailed description of the invention
In order to further illustrate the technical solution of the utility model, in conjunction with Figure of description, concrete reality of the present utility model
Execute mode as follows:
As in figure 2 it is shown, the utility model discloses the permanent magnet machine rotor of a kind of high reluctance torque, described rotor 1
Including a rotor core 2, described rotor core 2 is fallen into by stalloy.It is evenly distributed with along the circumference of described rotor core 2
8 groups of permanent magnet trough 3, described permanent magnet trough 3 is V-shaped.Described permanent magnet trough 3 is built with permanent magnet, the permanent magnet number of each magnetic pole
Amount is two, respectively permanent magnet A4a and permanent magnet B4b, forms multiple magnetic pole and polarity is that N, S are alternately distributed.Said two
Permanent magnet is strip, and structure is the most identical, and two described permanent magnets are V-shaped along the direction of permanent magnet trough 3 is arranged on permanent magnet trough 3
In, and between two permanent magnets, angle is 90 °～180 °.Described permanent magnet A4a and permanent magnet B4b is arranged symmetrically in pole center
Line both sides, and it is positioned at distance rotor magnetic pole centrage remote position, near rotor outer circle week.Two described permanent magnets it
Between also set up air magnetic barrier 5, described air magnetic barrier 5 be hexagon, and air magnetic barrier 5 connects with permanent magnet trough 3 and forms a cavity.
As it is shown on figure 3, the air magnetic between described permanent magnet A4a and permanent magnet B4b is additionally provided with a magnetic bridge 6, institute in hindering 5
Stating magnetic bridge 6 is one, is positioned on pole center line.Additionally, described magnetic bridge 6 can also be two, it is symmetrically arranged at pole center line
Both sides.
As depicted in figs. 1 and 2, minimum range D between two described permanent magnets is more than V-type permanent magnet of the prior art
Minimum range D' between two permanent magnets of construction rotor, and minimum range D between said two permanent magnet >=4mm.
The foregoing is only the preferred embodiment of technical solutions of the utility model, can not be used for limiting this utility model,
For a person skilled in the art, this utility model can have reasonably change and change.All in essence of the present utility model
Within god and principle, any amendment of being made, equivalent etc., within should be included in protection domain of the present utility model.
Claims (4)
1. a permanent magnet machine rotor for high reluctance torque, including the iron core built up by stalloy, is distributed along iron core circumference
Organizing permanent magnet trough, permanent magnet trough, built with permanent magnet, forms multiple magnetic pole and polarity is that N, S are alternately distributed more, it is characterised in that:
Described permanent magnet is strip, and the permanent magnet quantity of each magnetic pole is two, and the permanent magnet of two strips is the V of outward opening
Type is distributed, and between two permanent magnets, angle is 90 °～180 °, and two permanent magnets are arranged symmetrically in pole center line both sides, and position
In away from rotor magnetic pole center and near the position in rotor outer circle week, between two permanent magnets, it is provided with air magnetic barrier, described sky
Gas magnetic barrier connects formation cavity with permanent magnet trough, is provided with magnetic bridge within described air magnetic hinders.
Rotor the most according to claim 1, it is characterised in that:
Minimum range D between said two permanent magnet >=4mm.
Rotor the most according to claim 1, it is characterised in that:
The described air magnetic barrier arranged between two permanent magnets is hexagon.
Rotor the most according to claim 1, it is characterised in that:
Described magnetic bridge is positioned at air magnetic barrier centre position, and quantity is one or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620589323.3U CN205693465U (en) | 2016-06-16 | 2016-06-16 | A kind of permanent magnet machine rotor of high reluctance torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620589323.3U CN205693465U (en) | 2016-06-16 | 2016-06-16 | A kind of permanent magnet machine rotor of high reluctance torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693465U true CN205693465U (en) | 2016-11-16 |
Family
ID=57428942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620589323.3U Active CN205693465U (en) | 2016-06-16 | 2016-06-16 | A kind of permanent magnet machine rotor of high reluctance torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205693465U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787318A (en) * | 2016-12-28 | 2017-05-31 | 卧龙电气集团股份有限公司 | Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor |
| CN110380537A (en) * | 2019-07-22 | 2019-10-25 | 宁波华表机械制造有限公司 | A kind of motor rotor punching sheet and permanent magnet drive motor rotor block and permanent magnet drive motor |
| US11223251B2 (en) | 2017-06-27 | 2022-01-11 | Schaeffler Technologies AG & Co. KG | Permanent magnet energized motor with rotatable bar magnets |
-
2016
- 2016-06-16 CN CN201620589323.3U patent/CN205693465U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787318A (en) * | 2016-12-28 | 2017-05-31 | 卧龙电气集团股份有限公司 | Permagnetic synchronous motor p-m rotor punching and permagnetic synchronous motor |
| US11223251B2 (en) | 2017-06-27 | 2022-01-11 | Schaeffler Technologies AG & Co. KG | Permanent magnet energized motor with rotatable bar magnets |
| CN110380537A (en) * | 2019-07-22 | 2019-10-25 | 宁波华表机械制造有限公司 | A kind of motor rotor punching sheet and permanent magnet drive motor rotor block and permanent magnet drive motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |