CN216530782U - Rotor assembly of disc type motor and disc type motor - Google Patents
Rotor assembly of disc type motor and disc type motor Download PDFInfo
- Publication number
- CN216530782U CN216530782U CN202122951950.0U CN202122951950U CN216530782U CN 216530782 U CN216530782 U CN 216530782U CN 202122951950 U CN202122951950 U CN 202122951950U CN 216530782 U CN216530782 U CN 216530782U
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- Prior art keywords
- magnetic
- rotor core
- rotor
- motor
- rotor assembly
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- 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
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- 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
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a rotor assembly of a disc type motor and the disc type motor, which comprises a rotor core and a plurality of brick-shaped magnetic shoes, wherein the rotor core is provided with a plurality of magnetic steel grooves distributed at intervals along the circumferential direction, a central hole is dug in the center of the rotor core, the magnetic steel grooves are communicated with the central hole, the magnetic shoes are nested in the magnetic steel grooves, and the magnetic steel grooves are distributed along a radial line S or are inclined at an angle alpha with the radial line S, and the disc type motor is characterized in that: the length L1 of magnetic shoe is greater than the length L2 in magnetic steel groove, and this structure is arranged under the unchangeable condition of rotor core height and thickness, can further improve the motor and gather magnetic effect, improves the torque density of motor, and the volume is light little, greatly reduced motor cost.
Description
The technical field is as follows:
the utility model relates to a rotor assembly of a disc type motor and the disc type motor.
Background art:
the axial magnetic field disc type permanent magnet synchronous motor in the prior art is increasingly applied due to high power density, light weight and small volume, for example, the axial magnetic field disc type permanent magnet synchronous motor is applied to a traction motor of a new energy automobile. In the existing motor structure, most rotor magnetic steel arrangement adopts a surface-mounted magnetic steel structure axial magnetic field, and a small part adopts an SPOKE magnetic gathering magnetic pole structure, but the current disk motor adopting the SPOKE structure has the following problems: at present, the disk type motor rotor adopting the SPOKE structure has the advantages that the height of a rotor core is close to that of a magnetic shoe, the magnetism gathering effect needs to be improved, the height of the rotor core needs to be improved, the thickness and the weight of the rotor core are increased, the size of the motor is made, the cost is high, and the market competitiveness of the motor is reduced.
The utility model content is as follows:
the utility model aims to provide a rotor assembly of a disc type motor and the disc type motor, which can solve the technical problems that the height of a rotor core is close to that of a magnetic shoe, the magnetic gathering effect needs to be improved, the height of the rotor core needs to be improved, the thickness and the weight of the rotor core are increased, the size and the cost of the motor are high, and the market competitiveness of the motor is reduced in the prior art.
The purpose of the utility model is realized by the following technical scheme.
The utility model aims to provide a rotor assembly of a disc type motor, which comprises a rotor core and a plurality of brick-shaped magnetic shoes, wherein the rotor core is provided with a plurality of magnetic steel grooves which are distributed at intervals along the circumferential direction, the center of the rotor core is dug to form a center hole, the magnetic steel grooves are communicated with the center hole, the magnetic shoes are nested in the magnetic steel grooves, and the magnetic steel grooves are distributed along a radial line S or are inclined at an angle alpha with the radial line S, and the rotor assembly is characterized in that: the length L1 of the magnetic shoe is larger than the length L2 of the magnetic steel slot.
The inner end of the magnetic shoe protrudes out of the inner side wall of the rotor core and extends into the central hole.
The outer ends of the magnetic shoes protrude out of the outer side wall of the rotor core and extend to the outside of the rotor core.
The axial height L3 of the magnetic shoe is larger than the axial height L4 of the rotor core.
At least one end of the magnetic shoe axially extends out of the end face of the rotor core.
The angle α mentioned above ranges from 0 to 30 degrees.
The rotor core is made of SMC materials or silicon steel sheets.
The length L5 of the magnetic shoe protruding from the inner side wall of the rotor core and extending into the central hole does not exceed 1/5 of the length L1 of the whole magnetic shoe.
A disc motor comprising a stator assembly and a rotor assembly, characterized in that: the rotor assembly is the rotor assembly of the disc type motor.
Compared with the prior art, the utility model has the following effects:
1) the utility model provides a rotor subassembly of disk motor, includes rotor core and the massive magnetic shoe of a plurality of bricks, is equipped with a plurality of magnet steel grooves along circumference interval distribution on the rotor core, and the center of rotor core has dug out the centre bore, and the magnet steel groove communicates with the centre bore, and the magnetic shoe nestification is in the magnet steel groove, and the magnet steel groove along radial line S overall arrangement or with radial line S an angle alpha of slope, its characterized in that: the length L1 of magnetic shoe is greater than the length L2 in magnetic steel groove, and this structure is arranged under the unchangeable condition of rotor core height and thickness, can further improve the motor and gather magnetic effect, improves the torque density of motor, and the volume is light little, greatly reduced motor cost.
2) Other advantages of the present invention are described in detail in the examples section.
Description of the drawings:
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is an exploded view of a first embodiment of the present invention;
FIG. 3 is a side view of a first embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic structural diagram according to an embodiment of the present invention;
FIG. 6 is a perspective view of a second embodiment of the present invention;
FIG. 7 is an exploded view of a second embodiment of the present invention;
FIG. 8 is a side view of a second embodiment of the present invention;
FIG. 9 is a cross-sectional view A-A of FIG. 3;
fig. 10 is a schematic structural diagram provided in the second embodiment of the present invention.
The specific implementation mode is as follows:
the present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 5, the rotor assembly of a disc motor provided in this embodiment includes a rotor core 1 and a plurality of brick-shaped magnetic shoes 2, the rotor core 1 is provided with a plurality of magnetic steel slots 11 distributed at intervals along the circumferential direction, a central hole 10 is dug out at the center of the rotor core 1, the magnetic steel slots 11 are communicated with the central hole 10, the magnetic shoes 2 are nested in the magnetic steel slots 11, and the magnetic steel slots 11 are arranged along the radial line S, which is characterized in that: the length L1 of magnetic shoe 2 is greater than the length L2 of magnetic steel groove 11, and this structure is arranged under the unchangeable condition of rotor core height and thickness, can further improve the motor and gather magnetic effect, improves the torque density of motor, and is small in size, greatly reduced motor cost.
The inner end 21 of the magnetic shoe 2 protrudes out of the inner side wall 12 of the rotor core 1 and extends into the central hole 10, so that the magnetic gathering effect of the motor can be improved, and the torque density of the motor can be improved.
The outer end 22 of the magnetic shoe 2 protrudes out of the outer side wall 13 of the rotor core 1 and extends to the outside of the rotor core 1, so that the magnetic gathering effect of the motor can be improved, and the torque density of the motor can be improved.
The axial height L3 of the magnetic shoe 2 is greater than the axial height L4 of the rotor core 1, so that the magnetic concentration effect of the motor can be further improved, and the torque density of the motor can be improved.
At least one end of the magnetic shoe 2 axially extends out of the end face 100 of the rotor core 1, so that the magnetic gathering effect of the motor can be improved, and the torque density of the motor can be improved.
The rotor core 1 is made of SMC material or silicon steel sheet.
The length L5 of the magnetic shoe 2 protruding from the inner side wall 12 of the rotor core 1 into the central hole 10 does not exceed 1/5 of the length L1 of the entire magnetic shoe 2.
Example two:
as shown in fig. 6 to 10, the rotor assembly of a disc motor provided in this embodiment includes a rotor core 1 and a plurality of brick-shaped magnetic shoes 2, the rotor core 1 is provided with a plurality of magnetic steel slots 11 distributed at intervals along the circumferential direction, a central hole 10 is dug out at the center of the rotor core 1, the magnetic steel slots 11 are communicated with the central hole 10, the magnetic shoes 2 are nested in the magnetic steel slots 11, and the magnetic steel slots 11 are arranged along an angle α of inclination of a radial line S, which is characterized in that: the length L1 of magnetic shoe 2 is greater than the length L2 of magnetic steel groove 11, and this structure is arranged under the unchangeable condition of rotor core height and thickness, can further improve the motor and gather magnetic effect, improves the torque density of motor, and is small in size, greatly reduced motor cost.
The inner end 21 of the magnetic shoe 2 protrudes out of the inner side wall 12 of the rotor core 1 and extends into the central hole 10, so that the magnetic gathering effect of the motor can be improved, and the torque density of the motor can be improved.
The outer end 22 of the magnetic shoe 2 protrudes out of the outer side wall 13 of the rotor core 1 and extends to the outside of the rotor core 1, so that the magnetic gathering effect of the motor can be improved, and the torque density of the motor can be improved.
The axial height L3 of the magnetic shoe 2 is greater than the axial height L4 of the rotor core 1, so that the magnetic concentration effect of the motor can be further improved, and the torque density of the motor can be improved.
At least one end of the magnetic shoe 2 axially extends out of the end face 100 of the rotor core 1, so that the magnetic gathering effect of the motor can be improved, and the torque density of the motor can be improved.
The angle α mentioned above ranges from 0 degree to 30 degrees.
The rotor core 1 is made of SMC material or silicon steel sheet.
The length L5 of the magnetic shoe 2 protruding from the inner side wall 12 of the rotor core 1 into the central hole 10 does not exceed 1/5 of the length L1 of the entire magnetic shoe 2.
Example three:
a disc motor comprising a stator assembly and a rotor assembly, characterized in that: the rotor assembly is the rotor assembly of the disc motor according to the first embodiment or the second embodiment.
The above embodiments are only preferred embodiments of the present invention, but the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, simplifications, which are made without departing from the spirit and principle of the present invention, are all equivalent replacements within the protection scope of the present invention.
Claims (9)
1. The utility model provides a rotor subassembly of disk motor, includes rotor core (1) and the massive magnetic shoe (2) of a plurality of bricks, is equipped with a plurality of magnetic steel grooves (11) along circumference interval distribution on rotor core (1), and the center of rotor core (1) has dug out centre bore (10), and magnetic steel groove (11) and centre bore (10) intercommunication, and magnetic shoe (2) nestification is in magnetic steel groove (11) the inside, and magnetic steel groove (11) along radial line S overall arrangement or with an angle alpha of radial line S slope, its characterized in that: the length L1 of the magnetic shoe (2) is larger than the length L2 of the magnetic steel groove (11).
2. A rotor assembly for a disc motor according to claim 1, wherein: the inner end (21) of the magnetic shoe (2) protrudes out of the inner side wall (12) of the rotor core (1) and extends into the central hole (10).
3. A rotor assembly for a disc motor according to claim 2, wherein: the outer end (22) of the magnetic shoe (2) protrudes out of the outer side wall (13) of the rotor core (1) and extends to the outside of the rotor core (1).
4. A rotor assembly for a disc motor according to claim 1, 2 or 3, wherein: the axial height L3 of the magnetic shoe (2) is larger than the axial height L4 of the rotor core (1).
5. A rotor assembly for a disc motor according to claim 4, wherein: at least one end of the magnetic shoe (2) axially extends out of the end face (100) of the rotor core (1).
6. A rotor assembly for a disc motor according to claim 5, wherein: the angle alpha ranges from 0 to 30 degrees.
7. A rotor assembly for a disc motor according to claim 6, wherein: the rotor iron core (1) is made of SMC material or silicon steel sheet.
8. A rotor assembly for a disc motor according to claim 1, 2 or 3, wherein: the length L5 of the magnetic shoe (2) which protrudes out of the inner side wall (12) of the rotor core (1) and extends into the central hole (10) does not exceed 1/5 of the length L1 of the whole magnetic shoe (2).
9. A disc motor comprising a stator assembly and a rotor assembly, characterized in that: the rotor assembly is a rotor assembly of a disc motor according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122951950.0U CN216530782U (en) | 2021-11-29 | 2021-11-29 | Rotor assembly of disc type motor and disc type motor |
| PCT/CN2022/079844 WO2023092891A1 (en) | 2021-11-29 | 2022-03-09 | Rotor assembly of disc motor, and disc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122951950.0U CN216530782U (en) | 2021-11-29 | 2021-11-29 | Rotor assembly of disc type motor and disc type motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216530782U true CN216530782U (en) | 2022-05-13 |
Family
ID=81463975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122951950.0U Active CN216530782U (en) | 2021-11-29 | 2021-11-29 | Rotor assembly of disc type motor and disc type motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN216530782U (en) |
| WO (1) | WO2023092891A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024148673A1 (en) * | 2023-01-09 | 2024-07-18 | 中山大洋电机股份有限公司 | Disc-type electric motor with alternate pole structure and high torque density |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499701A (en) * | 2008-10-23 | 2009-08-05 | 沈阳工业大学 | Novel transverse magnetic flux permanent magnet motor |
| WO2014082839A2 (en) * | 2012-11-30 | 2014-06-05 | Arcelik Anonim Sirketi | A spoke permanent magnet rotor |
| EP2869433B1 (en) * | 2013-10-30 | 2016-09-21 | SC BMEnergy SRL | Axial flux permanent magnet electrical machine with magnetic flux concentration |
| CN204652188U (en) * | 2015-03-05 | 2015-09-16 | 腾达电动科技镇江有限公司 | For the disk permanent magnet generator of generating set |
| CN206195496U (en) * | 2016-10-08 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and permanent -magnet machine |
| CN112564345A (en) * | 2019-09-26 | 2021-03-26 | 广东威灵电机制造有限公司 | Rotor and motor |
-
2021
- 2021-11-29 CN CN202122951950.0U patent/CN216530782U/en active Active
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2022
- 2022-03-09 WO PCT/CN2022/079844 patent/WO2023092891A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024148673A1 (en) * | 2023-01-09 | 2024-07-18 | 中山大洋电机股份有限公司 | Disc-type electric motor with alternate pole structure and high torque density |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023092891A1 (en) | 2023-06-01 |
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