CN204190516U - A kind of coreless permanent magnet motor - Google Patents
A kind of coreless permanent magnet motor Download PDFInfo
- Publication number
- CN204190516U CN204190516U CN201420700405.1U CN201420700405U CN204190516U CN 204190516 U CN204190516 U CN 204190516U CN 201420700405 U CN201420700405 U CN 201420700405U CN 204190516 U CN204190516 U CN 204190516U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- motor shaft
- motor
- positioning strip
- coreless
- 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.)
- Expired - Fee Related
Links
- 239000000696 magnetic material Substances 0.000 claims abstract description 12
- 230000035699 permeability Effects 0.000 claims abstract description 12
- 241000397426 Centroberyx lineatus Species 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000011218 segmentation Effects 0.000 abstract description 7
- 230000005662 electromechanics Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 description 3
- 229910001021 Ferroalloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model provides a kind of coreless permanent magnet motor, comprise motor shaft, rotor and surrounding rotor and with rotor, there is the stator in gap, motor shaft adopts permeability magnetic material to make, and rotor comprises multiple permanent magnet, and permanent magnet is installed on the outer surface of motor shaft along the axis of motor shaft.The coreless permanent magnet motor that the utility model provides, motor shaft adopts permeability magnetic material to make, without the need to using iron core, permanent magnet is directly installed on the surface of motor shaft, makes permanent magnet motor structure simple, thus reduces the cost of magneto, and weight is lighter, electric machine rotation inertia can be reduced, reduce electromechanics time constant, and then improve the response time of motor; Adopt positioning strip, permanent magnet is reliably fixed on the outer surface of motor shaft; Axis along motor shaft arranges multiple positioning strip and multiple permanent magnet, can realize axial segmentation and install, more convenient during installation and maintenance.
Description
Technical field
The utility model relates to a kind of magneto, particularly relates to a kind of coreless permanent magnet motor.
Background technology
Usual permanent magnet machine rotor is all cored, and permanent magnet is arranged on rotor core surface or inner, and rotor is installed on motor shaft again.This permanent magnet motor structure is complicated, and cost is high.
Summary of the invention
The utility model provides a kind of coreless permanent magnet motor, and motor shaft adopts permeability magnetic material to make, and permanent magnet is directly installed on the surface of motor shaft, makes permanent magnet motor structure simple, thus reduces the cost of magneto.
The coreless permanent magnet motor that the utility model provides, comprise motor shaft, rotor and surrounding rotor and with rotor, there is the stator in gap, motor shaft adopts permeability magnetic material to make, and rotor comprises multiple permanent magnet, and permanent magnet is installed on the outer surface of motor shaft along the axis of motor shaft.
Motor shaft adopts permeability magnetic material, and such as iron, steel or ferroalloy make, and without the need to using iron core, permanent magnet is directly installed on the surface of motor shaft, make permanent magnet motor structure simple, thus reduce the cost of magneto, and weight is lighter.
Further, permanent magnet is installed on the outer surface of motor shaft along the axis of motor shaft by positioning strip.
Further, the cross section of positioning strip comprises the first shape and the second shape.
Further, the outer surface of motor shaft arranges the first location notch vertically, the first form fit of the first location notch and positioning strip side, for positioning strip being fixed on the outer surface of motor shaft; The outer surface of the second shape of positioning strip opposite side and the second shape of adjacent positioning strip, motor shaft forms the second location notch, for permanent magnet being fixed on the outer surface of motor shaft.
The coreless permanent magnet motor that the utility model provides, adopts the first shape of positioning strip side to coordinate with the first location notch, positioning strip is fixed on the outer surface of motor shaft; The outer surface of the second shape of positioning strip opposite side and the second shape of adjacent positioning strip, motor shaft forms the second location notch, for permanent magnet being reliably fixed on the outer surface of motor shaft.
Further, positioning strip and motor shaft are formed in one, and the second shape that adjacent positioning strip protrudes from motor shaft outer surface forms the second location notch, permanent magnet is fixed on the outer surface of motor shaft.
Further, permanent magnet is bar shaped or block shape.Further, the outer surface of motor shaft is the face of cylinder or prismatic surface.The coreless permanent magnet motor that the utility model provides, the outer surface of motor shaft is the face of cylinder or prismatic surface, makes the permanent magnet adhered shape of axle outer surface and bar shaped or block shape, improves the reliability of motor.
Further, the axis along motor shaft arranges one or more positioning strip.The coreless permanent magnet motor that the utility model provides, the axis along motor shaft arranges multiple positioning strip, can axial segmentation install, more convenient during installation and maintenance.
Further, the axis along motor shaft arranges one or more permanent magnet.The coreless permanent magnet motor that the utility model provides, the axis along motor shaft arranges multiple permanent magnet, can axial segmentation install, more convenient during installation and maintenance.
The coreless permanent magnet motor that the utility model provides has following beneficial effect:
(1) motor shaft adopts permeability magnetic material to make, without the need to using iron core, permanent magnet is directly installed on the surface of motor shaft, make permanent magnet motor structure simple, thus reduce the cost of magneto, and weight is lighter, can reduce electric machine rotation inertia, reduce electromechanics time constant, and then improve the response time of motor;
(2) adopt positioning strip, permanent magnet is reliably fixed on the outer surface of motor shaft, thus improve motor reliability of operation;
(3) axis along motor shaft installs multiple positioning strip and multiple permanent magnet, can realize axial segmentation and install, more convenient during installation and maintenance.
Accompanying drawing explanation
Fig. 1 is the front view that the permanent magnet of the coreless permanent magnet motor of an embodiment of the present utility model is installed on motor shaft surface;
Fig. 2 is the end view that the permanent magnet of the coreless permanent magnet motor shown in Fig. 1 is installed on motor shaft surface;
Fig. 3 is the side-looking explosive view that the permanent magnet of the coreless permanent magnet motor shown in Fig. 1 is installed on motor shaft surface;
Fig. 4 is the cutaway view of a kind of positioning strip of the coreless permanent magnet motor shown in Fig. 1;
Fig. 5 is the cutaway view of the another kind of positioning strip of the coreless permanent magnet motor shown in Fig. 1.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to following examples.
As shown in Figure 1, the coreless permanent magnet motor of the present embodiment, comprises motor shaft 1, rotor and surrounding rotor and has the stator (not shown) in gap with rotor.
Motor shaft 1 adopts permeability magnetic material to make, and rotor comprises multiple permanent magnet 2, and permanent magnet 2 is installed on the outer surface of motor shaft 1 along the axis of motor shaft 1.
Motor shaft 1 adopts permeability magnetic material to make, without the need to using iron core, permanent magnet 2 is directly installed on the surface of motor shaft 1, make permanent magnet motor structure simple, thus reduce the cost of magneto, and weight is lighter, can reduce electric machine rotation inertia, reduce electromechanics time constant, and then improve the response time of motor.
As shown in Figure 2 and Figure 3, permanent magnet 2 is installed on the outer surface of motor shaft 1 along the axis of motor shaft 1 by positioning strip 3.
As shown in Figure 4, the cross section of positioning strip comprises the first shape 31 and the second shape 32, first shape 31 is swallow-tail form, and the second shape 32 is the swallow-tail form relative with the swallow-tail form of the first shape 31.
As shown in Figure 3, the outer surface of motor shaft 1 arranges the first location notch 11 vertically, the cross section of the first location notch 11 is swallow-tail form, and the first location notch 11 coordinates with the swallow-tail form of the first shape 31 of positioning strip 3 side, for positioning strip 3 being fixed on the outer surface of motor shaft 1; The outer surface of the swallow-tail form of the second shape 32 of positioning strip 3 opposite side and the second shape 32 of adjacent positioning strip 3, motor shaft 1 forms the second location notch, for permanent magnet 2 being fixed on the outer surface of motor shaft 1.
Adopt said structure, positioning strip 3 reliably can be fixed on the outer surface of motor shaft 1 by the swallow-tail form of the first shape 31; Permanent magnet 2 reliably can be fixed on the outer surface of motor shaft 1 by the second location notch simultaneously, thus improves motor reliability of operation.
Positioning strip 3 adopts structure as shown in Figure 5 in another embodiment, and the first shape 31 is circular, and the second shape 32 is rectangle, and the cross section of corresponding first location notch 11 is circular.
First shape 31 can also adopt other shapes such as rectangle, as long as positioning strip 3 reliably can be fixed on the outer surface of motor shaft 1.
Positioning strip 3 can adopt permeability magnetic material or macromolecular material.In the present embodiment, positioning strip 3 adopts steel to do; In another embodiment, positioning strip 3 adopts engineering plastics to make.
In addition, positioning strip 3 and motor shaft 1 also can be one-body molded, the permeability magnetic material identical with motor shaft is adopted to make, such as iron, steel, ferroalloy etc., the second shape 32 that adjacent positioning strip 3 protrudes from motor shaft 1 outer surface forms the second dovetail groove, permanent magnet 2 is fixed on the outer surface of motor shaft 1.
Permanent magnet 2 is bar shaped or block shape.In the present embodiment, permanent magnet 2 for cross section be the strip of month shape.
The outer surface of motor shaft 1 is the face of cylinder or prismatic surface.
Axis along motor shaft 1 arranges one or more positioning strip 3.In the present embodiment, the axis along motor shaft 1 arranges multiple positioning strip 3, can axial segmentation install, more convenient during installation and maintenance.
Axis along motor shaft 1 arranges one or more permanent magnet 2.In the present embodiment, the axis along motor shaft 1 arranges multiple permanent magnet 2, can axial segmentation install, more convenient during installation and maintenance.
The coreless permanent magnet motor that the utility model provides, motor shaft adopts permeability magnetic material to make, without the need to using iron core, permanent magnet is directly installed on the surface of motor shaft, makes permanent magnet motor structure simple, thus reduces the cost of magneto, and weight is lighter, electric machine rotation inertia can be reduced, reduce electromechanics time constant, and then improve the response time of motor; Adopt positioning strip, permanent magnet is reliably fixed on the outer surface of motor shaft; Axis along motor shaft installs multiple positioning strip and multiple permanent magnet, can realize axial segmentation and install, more convenient during installation and maintenance.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection range of claims.
Claims (10)
1. a coreless permanent magnet motor, comprise motor shaft, rotor and with described rotor, there is the stator in gap around described rotor, it is characterized in that, described motor shaft adopts permeability magnetic material to make, described rotor comprises multiple permanent magnet, and described permanent magnet is installed on the outer surface of described motor shaft along the axis of described motor shaft.
2. coreless permanent magnet motor as claimed in claim 1, is characterized in that, described permanent magnet is installed on the outer surface of described motor shaft along the axis of described motor shaft by positioning strip.
3. coreless permanent magnet motor as claimed in claim 2, it is characterized in that, the cross section of described positioning strip comprises the first shape and the second shape.
4. coreless permanent magnet motor as claimed in claim 3, it is characterized in that, the outer surface of described motor shaft arranges the first location notch vertically, the first form fit of described first location notch and described positioning strip side, for described positioning strip being fixed on the outer surface of described motor shaft; The outer surface of the second shape of described positioning strip opposite side and the second shape of adjacent positioning strip, described motor shaft forms the second location notch, for described permanent magnet being fixed on the outer surface of described motor shaft.
5. coreless permanent magnet motor as claimed in claim 3, it is characterized in that, described first shape is swallow-tail form, circle or rectangle, and described second shape is swallow-tail form or rectangle.
6. coreless permanent magnet motor as claimed in claim 3, it is characterized in that, described positioning strip and described motor shaft are formed in one.
7. coreless permanent magnet motor as claimed in claim 1, it is characterized in that, described permanent magnet is bar shaped or block shape.
8. coreless permanent magnet motor as claimed in claim 1, it is characterized in that, the outer surface of described motor shaft is the face of cylinder or prismatic surface.
9. coreless permanent magnet motor as claimed in claim 1, it is characterized in that, the axis along described motor shaft arranges one or more positioning strip.
10. coreless permanent magnet motor as claimed in claim 1, it is characterized in that, the axis along described motor shaft arranges one or more permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700405.1U CN204190516U (en) | 2014-11-20 | 2014-11-20 | A kind of coreless permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700405.1U CN204190516U (en) | 2014-11-20 | 2014-11-20 | A kind of coreless permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190516U true CN204190516U (en) | 2015-03-04 |
Family
ID=52622486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420700405.1U Expired - Fee Related CN204190516U (en) | 2014-11-20 | 2014-11-20 | A kind of coreless permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190516U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762960A (en) * | 2016-04-21 | 2016-07-13 | 济南科亚电子科技有限公司 | Motor rotor and low voltage brushless servo motor |
| CN110048575A (en) * | 2019-05-17 | 2019-07-23 | 陈益广 | A kind of composite construction p-m rotor suitable for high-speed permanent magnetic synchronous motor |
-
2014
- 2014-11-20 CN CN201420700405.1U patent/CN204190516U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762960A (en) * | 2016-04-21 | 2016-07-13 | 济南科亚电子科技有限公司 | Motor rotor and low voltage brushless servo motor |
| CN110048575A (en) * | 2019-05-17 | 2019-07-23 | 陈益广 | A kind of composite construction p-m rotor suitable for high-speed permanent magnetic synchronous motor |
| CN110048575B (en) * | 2019-05-17 | 2021-12-31 | 陈益广 | Composite structure permanent magnet rotor suitable for high-speed permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Patentee after: SHANGHAI HIGHLY ELECTRICAL APPLIANCES Co.,Ltd. Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 888 Patentee before: SHANGHAI HITACHI ELECTRICAL APPLICANCES Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 |