CN202798216U - Hybrid rotor reluctance motor - Google Patents
Hybrid rotor reluctance motor Download PDFInfo
- Publication number
- CN202798216U CN202798216U CN 201220425686 CN201220425686U CN202798216U CN 202798216 U CN202798216 U CN 202798216U CN 201220425686 CN201220425686 CN 201220425686 CN 201220425686 U CN201220425686 U CN 201220425686U CN 202798216 U CN202798216 U CN 202798216U
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- China
- Prior art keywords
- permanent magnet
- motor
- salient pole
- rotor
- rotor core
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Abstract
The utility model belongs to the motor field and relates to a hybrid rotor reluctance motor which can relieve the problem of large torque ripple of the reluctance motor effectively. The reluctance motor comprises a motor rotor and a motor stator, wherein a coil winding is arranged on the motor stator. The motor is characterized in that the motor rotor comprises a rotor core which is in a sectional structure along the axial direction, the rotor core is divided into permanent magnet sections and salient pole sections, a plurality of sheet-shaped permanent magnets are uniformly attached to a cylindrical surface of the rotor core at the permanent magnet sections along the peripheral direction, salient poles are uniformly attached to the outer circumference of the rotor core at the salient pole sections, and the permanent magnet sections and the salient pole sections are arranged alternately. The permanent magnet sections and the salient pole sections hybrid motor rotor structure is adopted for the motor, therefore the motor can generate larger output torque under the same current, the volume of the motor can be reduced, the motor winding current and temperature rise can be reduced, the efficiency can be improved, the service life can be prolonged, the torque ripple of the motor is reduced simultaneously due to the permanent magnet section structure, and therefore the motor is more stable with smaller vibration and noise under high rotation speed operation.
Description
Technical field
The utility model belongs to machine field, relates to a kind of mixed rotor, torque is large, stationarity is good reluctance motor of adopting.
Technical background
Traditional reluctance motor arranges coil windings at magnetic pole of the stator, and rotor adopts salient-pole structure, and general rotor adopts silicon steel sheet to make, and does not establish permanent magnet on the rotor.Utilize the rotor with salient pole structure to cause the inhomogeneous motor that makes of magnetic circuit to produce larger reluctance torque, in the motor operation course, torque ripple is larger.
Such as CN102118072A patent document record a kind of from the speedup permanent magnet direct driving motor of bulletin in Patent Office of the People's Republic of China on July 26th, 2011, this motor comprises motor stator and rotor; Described motor stator comprises stator core, armature winding, stator pole shoes in the embedding stator core wire casing and the permanent magnet that is installed on the stator pole shoes surface that is provided with wire casing; Described rotor comprises rotor core and rotor with salient pole; Be provided with air gap between motor stator and the rotor.This device arranges magnet structure at motor stator, and rotor adopts traditional salient pole type structure, can't solve the large problem of torque ripple that the rotor with salient pole structure is brought.
Summary of the invention
The purpose of this utility model is to cause the large problem of torque ripple for traditional magnetic resistance motor rotor structure, and a kind of reluctance motor of mixed rotor is provided, and has reduced the torque ripple of reluctance motor.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of mixed rotor reluctance motor, comprise rotor and motor stator, motor stator is provided with coil windings, described rotor comprises rotor core, rotor core is segmentation structure vertically, comprises permanent magnet segments and salient pole section, and some flaky permanent magnets along the circumferential direction evenly have been sticked on the permanent magnet segments rotor core cylinder, salient pole section rotor core outer shroud evenly is provided with salient pole on week, permanent magnet segments and salient pole section alternative arrangement.Rotor core adopts the structure of permanent magnet segments and salient pole section alternative arrangement, and the relative salient-pole structure thickness of the magnet structure of permanent magnet segments rotor core is little, has reduced the torque ripple of motor, makes motor more steady when high rotating speed operation, and less vibration and noise are arranged.And magnet structure makes motor just can reach larger torque under identical electric current, can reduce the volume of motor, reduces motor winding current and temperature rise, raises the efficiency, and prolongs electrical machinery life.
As preferably, the segmentation of the both sides of described rotor core is the salient pole section.Both sides arrange the salient pole section can form protection to the permanent magnet segments permanent magnet at middle part.
As preferably, the permanent magnet of described each permanent magnet segments is the even number sheet, and permanent magnet pole is along rotor core circumferencial direction alternative arrangement.
As preferably, the salient pole number on the described salient pole section rotor core is identical with the permanent magnet number of permanent magnet segments, and salient pole aligns one by one with permanent magnet.
As preferably, the external diameter of the permanent magnet outer surface of described permanent magnet segments is consistent with the external diameter of salient pole section salient pole end face.Each Duan Junneng of rotor keeps having than small air gap with motor stator.
As preferably, the radius of described permanent magnet segments rotor core is greater than the radius of salient pole section rotor core.The thickness of permanent magnet is much smaller than the height of salient pole, and this also is the main cause that permanent magnet segments can reduce torque ripple, therefore, guarantee that the permanent magnet external diameter is consistent with the external diameter of salient pole, needs the radius of permanent magnet segments rotor core greater than the radius of salient pole section rotor core.
As preferably, the identical length of each permanent magnet segments of described rotor core and salient pole section with.
As preferably, described rotor core is three-stage structure, comprises both sides two salient pole sections and middle permanent magnet segments.
The motor rotor construction that the utility model adopts salient pole section and permanent magnet segments to mix, make motor under same current, can produce larger output torque, can reduce the volume of motor, reduce motor winding current and temperature rise, raise the efficiency, prolong the effect of electrical machinery life, simultaneously the permanent magnet segments Structure Decreasing torque ripple of motor, make motor more steady when high rotating speed operation, less vibration and noise are arranged.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the schematic diagram of the utility model motor rotor construction.
Fig. 3 is the utility model rotor core salient pole segment structure schematic diagram.
Fig. 4 is the utility model rotor core permanent magnet segments structural representation.
Among the figure: 1. motor stator, 2. rotor core, 3. salient pole, 4. permanent magnet, 5. armature spindle, 23. salient pole sections, 24. permanent magnet segments.
Embodiment
Also by reference to the accompanying drawings the utility model is further specified below by specific embodiment.
Embodiment: a kind of three sections mixed rotor type reluctance motors, as shown in Figure 1.This reluctance motor comprises motor stator 1 and rotor, is arranged with coil windings on the motor stator 1.As shown in Figure 2, rotor rotor core 2, rotor core are set on the motor shaft 5.Rotor core 2 aligns with motor stator 1.Rotor core 2 is divided into three sections of equal length vertically, is respectively 5 salient pole sections 23 and the middle permanent magnet segments 24 of both sides.As shown in Figure 3, the salient pole section of rotor core 2 evenly is provided with the salient pole 3 of rectangular toothed on 23 ring weeks; As shown in Figure 4, evenly pasting the permanent magnet 4 that is provided with sheet on permanent magnet segments 24 circumference of rotor core 2, arranges in the pole piece spacing of permanent magnet.As shown in Figure 1, the thickness of permanent magnet 4 is less than salient pole 3 height, and the rotor core diameter of permanent magnet segments 24 is greater than the diameter of salient pole section 23 rotor cores 2, and the permanent magnet 4 outer surface external diameters of permanent magnet segments are consistent with the salient pole 3 end face external diameters of salient pole section.And the one by one alignment identical with permanent magnet quantity of the salient pole quantity of each section.The ratio of the salient pole of single hop or permanent magnet quantity and number of stator slots is 2:3, and single hop salient pole quantity is 8 in this example.
The thickness of permanent magnet is much smaller than the height of salient pole, so permanent magnet segments can effectively reduce torque ripple, makes motor more steady when high rotating speed operation, and less vibration and noise are arranged.And magnet structure makes motor just can reach larger torque under identical electric current, can reduce the volume of motor, reduces motor winding current and temperature rise, raises the efficiency, and prolongs electrical machinery life.
Claims (8)
1. mixed rotor reluctance motor, comprise rotor and motor stator, motor stator is provided with coil windings, it is characterized in that: described rotor comprises rotor core, rotor core is segmentation structure vertically, comprises permanent magnet segments and salient pole section, and some flaky permanent magnets along the circumferential direction evenly have been sticked on the permanent magnet segments rotor core cylinder, salient pole section rotor core outer shroud evenly is provided with salient pole on week, permanent magnet segments and salient pole section alternative arrangement.
2. a kind of mixed rotor reluctance motor according to claim 1, it is characterized in that: the segmentation of the both sides of described rotor core is the salient pole section.
3. a kind of mixed rotor reluctance motor according to claim 1, it is characterized in that: the permanent magnet of described each permanent magnet segments is the even number sheet, permanent magnet pole is along rotor core circumferencial direction alternative arrangement.
4. according to claim 1 and 2 or 3 described a kind of mixed rotor reluctance motors, it is characterized in that: the salient pole number on the described salient pole section rotor core is identical with the permanent magnet number of permanent magnet segments, and salient pole aligns one by one with permanent magnet.
5. a kind of mixed rotor reluctance motor according to claim 1, it is characterized in that: the external diameter of the permanent magnet outer surface of described permanent magnet segments is consistent with the external diameter of salient pole section salient pole end face.
6. according to claim 1 and 2 or 3 or 5 described a kind of mixed rotor reluctance motors, it is characterized in that: the radius of described permanent magnet segments rotor core is greater than the radius of salient pole section rotor core.
7. it is characterized in that according to claim 1 and 2 or 3 or 5 described a kind of mixed rotor reluctance motors: the identical length of each permanent magnet segments of described rotor core and salient pole section with.
8. according to claim 1 and 2 or 3 or 5 described a kind of mixed rotor reluctance motors, it is characterized in that: described rotor core is three-stage structure, comprises both sides two salient pole sections and middle permanent magnet segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425686 CN202798216U (en) | 2012-08-27 | 2012-08-27 | Hybrid rotor reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425686 CN202798216U (en) | 2012-08-27 | 2012-08-27 | Hybrid rotor reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798216U true CN202798216U (en) | 2013-03-13 |
Family
ID=47825389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220425686 Expired - Fee Related CN202798216U (en) | 2012-08-27 | 2012-08-27 | Hybrid rotor reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972725A (en) * | 2017-05-25 | 2017-07-21 | 上海鼎特电器有限公司 | A kind of single-phase permanent type switched reluctance machines and its control method |
-
2012
- 2012-08-27 CN CN 201220425686 patent/CN202798216U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972725A (en) * | 2017-05-25 | 2017-07-21 | 上海鼎特电器有限公司 | A kind of single-phase permanent type switched reluctance machines and its control method |
| CN106972725B (en) * | 2017-05-25 | 2023-09-12 | 上海鼎特电器有限公司 | Single-phase permanent magnet type switch reluctance motor and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |