CN111490656A - Novel motor structure - Google Patents
Novel motor structure Download PDFInfo
- Publication number
- CN111490656A CN111490656A CN202010312471.1A CN202010312471A CN111490656A CN 111490656 A CN111490656 A CN 111490656A CN 202010312471 A CN202010312471 A CN 202010312471A CN 111490656 A CN111490656 A CN 111490656A
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- outer rotor
- shaft
- assembly
- 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
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
-
- 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
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
The invention relates to a novel motor structure which comprises a stator assembly, a rotor assembly, a bearing, a sensor and a lip seal. The stator component comprises a stator core, an outer winding coil, an inner winding coil, a stator shaft, a stator end cover and a stator bolt; the rotor assembly comprises an outer rotor assembly and an inner rotor assembly which are rigidly fixed through screws; the outer rotor component comprises an outer rotor iron core, outer rotor magnetic steel, an outer rotor shell and an outer rotor cover; the inner rotor assembly comprises an inner rotor shaft, an inner rotor iron core and inner rotor magnetic steel; a bearing, a sensor and a lip seal are positioned between the rotor assembly and the stator assembly. The novel motor structure provided by the invention has the advantages that interaction output torques are generated between the inner rotor assembly and the inner winding coil and between the outer rotor assembly and the outer winding coil, and the novel motor structure has the advantages of large output torque, compact structure and high space utilization rate.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a novel motor structure.
Background
The motor is a device for realizing mutual conversion of electric energy and mechanical energy, and mainly comprises a rotating motor and a linear motor, wherein the rotating motor comprises an inner rotor motor and an outer rotor motor. The torque of the inner rotor motor is proportional to the volume of the area enclosed by the outer surface of the inner rotor, and the torque of the outer rotor motor is proportional to the volume of the area enclosed by the inner surface of the outer rotor.
Aiming at the application occasions with small motor space size and high torque requirement, the existing single inner rotor or outer rotor is difficult to meet the requirement of output torque.
Disclosure of Invention
In view of this, the invention provides a novel motor structure, which simultaneously comprises an outer rotor assembly and an outer rotor assembly, has high integration level, and is suitable for application occasions with small space size and high torque requirement.
The technical scheme adopted by the invention is as follows:
a novel motor structure comprises a stator assembly, a rotor assembly, a bearing, a sensor and a lip seal;
the stator component comprises a stator core, an outer winding coil, an inner winding coil, a stator shaft, a stator end cover and a stator bolt; the stator shaft and the stator end cover are clamped and fixed through a plurality of bolts, a plurality of grooves are respectively formed in the inner side and the outer side of the stator core and used for embedding outer winding coils in the grooves in the outer side of the stator core, inner winding coils are embedded in the grooves in the inner side, and the inner winding coils and the outer winding coils are connected in series and then led out;
the rotor assembly comprises an outer rotor assembly and an inner rotor assembly; the outer rotor assembly comprises an outer rotor iron core, outer rotor magnetic steel, an outer rotor shell and an outer rotor cover, wherein the outer rotor cover is fixedly arranged on one side of the outer rotor shell, the outer rotor iron core is arranged in the outer rotor shell, and a plurality of outer rotor magnetic steel are arranged along the outer rotor iron core; the inner rotor assembly comprises an inner rotor shaft, an inner rotor iron core and inner rotor magnetic steel, wherein the inner rotor iron core is arranged on the inner rotor shaft, and a plurality of inner rotor magnetic steel are arranged along the inner rotor iron core; an outer rotor shell of the outer rotor assembly and an inner rotor shaft of the inner rotor assembly are rigidly fixed through screws.
A bearing is arranged on one side between the stator shaft and the inner rotor shaft, and a bearing is arranged on the other side; a bearing is arranged between the stator end cover and the inner rotor shaft, and a bearing is arranged between the stator shaft and the outer rotor shell; the stator component and the rotor component can be fixed in the radial direction and the axial direction through the bearing, and meanwhile, the stator component and the rotor component can only move relatively in the same axis;
a sensor is arranged between the stator shaft of the stator component and the inner rotor shaft of the inner rotor component so as to measure the angular position of the rotor component relative to the stator component;
a lip seal is installed between the stator shaft of the stator assembly and the outer rotor cover of the outer rotor assembly, thereby achieving waterproof and dustproof sealing between the stator assembly and the rotor assembly.
Preferably, the plurality of outer rotor magnetic steels are arranged along the inner surface of the outer rotor iron core, and the magnetization directions are alternately distributed along the radius direction; a plurality of inner rotor magnet steels are installed along the outer surface of the inner rotor iron core, and the magnetization directions are alternately distributed along the radius direction.
Further preferably, the number of the outer rotor magnetic steel and the number of the inner rotor magnetic steel are the same, and the number of the slots on the inner side of the stator core is smaller than that of the slots on the outer side of the stator core.
Further preferably, the stator core is clamped and fixed between the stator shaft and the stator end cover through a plurality of bolts.
Further preferably, the outer rotor shell of the outer rotor assembly and the inner rotor shaft of the inner rotor assembly are rigidly fixed by screws.
More preferably, the number of slots on the inner side of the stator core is 30, and the number of slots on the outer side is 48.
Has the advantages that:
1. the invention integrates the outer rotor component and the inner rotor component inside, has high integration level and large output torque, and can be suitable for application occasions with small space size and high torque requirement.
2. The number of the outer rotor magnetic steel and the inner rotor magnetic steel is the same, so that the electrical frequency of the inner winding coil and the electrical frequency of the outer winding coil are the same, the inner winding coil and the outer winding coil can be led out after being connected in series, and the control of a motor is facilitated.
3. The circumference of the inner side of the stator core is smaller than that of the outer side, and the number of the slots of the inner side is smaller than that of the slots of the outer side, so that the structural strength of the stator core is guaranteed, and the stator core is convenient to process and manufacture.
Drawings
FIG. 1 is an axial cross-sectional view of a novel motor construction;
FIG. 2 is a radial cross-sectional view of a novel motor construction;
FIG. 3 is a view of a stator core structure;
FIG. 4 is a view of the stator shaft structure;
FIG. 5 is a view of the stator end cap;
FIG. 6 is an axial cross-sectional view of a stator assembly structure;
FIG. 7 is a radial cross-sectional view of a stator assembly configuration;
FIG. 8 is a cross-sectional axial view of the outer rotor assembly and inner rotor assembly construction;
FIG. 9 is a cross-sectional view in radial cross-section of the outer rotor assembly and inner rotor assembly structure;
fig. 10 is a partial schematic view of the magnetization directions of the outer rotor magnetic steel and the inner rotor magnetic steel.
The numbers in the figures illustrate the following:
1 stator core 2 outer winding coil 3 inner winding coil 4 stator shaft
5 stator end cover 6 stator bolt 7 outer rotor iron core 8 outer rotor magnetic steel
9 outer rotor shell 10 outer rotor cover 11 inner rotor shaft 12 inner rotor iron core
13 inner rotor magnetic steel 14 bearing 15 bearing 16 bearing
17 bearing 18 sensor 19 lip seal
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The present embodiment provides a novel motor structure, as shown in fig. 1-10, including a stator assembly, a rotor assembly, bearings, an angle sensor 18, and a lip seal 19.
The stator assembly comprises a stator core 1 (shown in fig. 3), an outer winding coil 2, an inner winding coil 3, a stator shaft 4 (shown in fig. 4), a stator end cover 5 (shown in fig. 5) and stator bolts 6, wherein the stator core 1 is clamped and fixed between the stator shaft 4 and the stator end cover 5 through the bolts 6, as shown in fig. 6.
The number of the slots on the inner side of the stator core 1 is 30, the number of the slots on the outer side is 48, and the number of the slots is more than that of the slots on the inner side; an outer winding coil 2 is embedded in the outer side of the stator core 1, an inner winding coil 3 is embedded in the inner side of the stator core, as shown in fig. 7, and the inner winding coil and the outer winding coil are connected in series and then led out.
As shown in fig. 8, the rotor assembly includes an outer rotor assembly and an inner rotor assembly; the outer rotor component comprises an outer rotor iron core 7, outer rotor magnetic steel 8, an outer rotor shell 9 and an outer rotor cover 10, the outer rotor cover 10 is fixedly installed on one side of the outer rotor shell 9, the outer rotor iron core 7 is installed in the outer rotor shell 9, and a plurality of outer rotor magnetic steels 8 are installed along the outer rotor iron core 7; the inner rotor assembly comprises an inner rotor shaft 11, an inner rotor iron core 12 and inner rotor magnetic steel 13, wherein the inner rotor iron core 12 is arranged on the inner rotor shaft 11, and a plurality of inner rotor magnetic steels 13 are arranged along the inner rotor iron core 12; the outer rotor shell 9 of the outer rotor assembly and the inner rotor shaft 11 of the inner rotor assembly are rigidly fixed through screws.
As shown in fig. 9, 40 outer rotor magnetic steels 8 are installed along the inner surface of the outer rotor core 7, and the magnetization directions are alternately distributed along the radial direction; the number of the inner rotor magnetic steels 13 is the same as that of the outer rotor magnetic steels 8, the 40 inner rotor magnetic steels 13 are installed along the outer surface of the inner rotor iron core 11, and the magnetization directions are alternately distributed along the radius direction, as shown in fig. 10.
As shown in fig. 1, a bearing 14 is disposed between the stator shaft 4 and the inner rotor shaft 11, and a bearing 15 is disposed on the other side; a bearing 16 is arranged between the stator end cover 5 and the inner rotor shaft 11, and a bearing 17 is arranged between the stator shaft 4 and the outer rotor shell 9; the stator assembly and the rotor assembly can be fixed in the radial direction and the axial direction through the bearings 14, 15, 16 and 17, and meanwhile, the stator assembly and the rotor assembly can only move in a relative rotation mode with the same axis.
As shown in fig. 1, an angle sensor 18 is mounted between the stator shaft 4 of the stator assembly and the inner rotor shaft 11 of the inner rotor assembly to measure the angular position of the rotor assembly relative to the stator assembly.
As shown in fig. 1, a lip seal 19 is installed between the stator shaft 4 of the stator assembly and the outer rotor cover 5 of the outer rotor assembly, thereby achieving a waterproof and dustproof seal between the stator assembly and the rotor assembly.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A novel motor structure is characterized in that: the motor structure comprises a stator assembly, a rotor assembly, a bearing, a sensor (18) and a lip seal (19);
the stator component comprises a stator iron core (1), an outer winding coil (2), an inner winding coil (3), a stator shaft (4), a stator end cover (5) and a stator bolt (6); the stator shaft (4) and the stator end cover (5) clamp and fix the stator core (1), the inner side and the outer side of the stator core (1) are respectively provided with a plurality of grooves for embedding the outer winding coil (2) in the groove on the outer side of the stator core (1), the inner winding coil (3) is embedded in the groove on the inner side, and the inner winding coil and the outer winding coil are connected in series and then led out;
the rotor assembly comprises an outer rotor assembly and an inner rotor assembly; the outer rotor component comprises an outer rotor iron core (7), outer rotor magnetic steel (8), an outer rotor shell (9) and an outer rotor cover (10), the outer rotor cover (10) is fixedly installed on one side of the outer rotor shell (9), the outer rotor iron core (7) is installed in the outer rotor shell (9), and a plurality of outer rotor magnetic steels (8) are installed along the outer rotor iron core (7); the inner rotor assembly comprises an inner rotor shaft (11), an inner rotor iron core (12) and inner rotor magnetic steel (13), wherein the inner rotor iron core (12) is installed on the inner rotor shaft (11), and a plurality of inner rotor magnetic steel (13) are installed along the inner rotor iron core (12); the outer rotor shell 9 of the outer rotor component and the inner rotor shaft 11 of the inner rotor component are rigidly fixed;
a bearing (14) is arranged on one side between the stator shaft (4) and the inner rotor shaft (11), and a bearing (15) is arranged on the other side; a bearing (16) is arranged between the stator end cover (5) and the inner rotor shaft (11), and a bearing (17) is arranged between the stator shaft (4) and the outer rotor shell (9); the stator component and the rotor component can be fixed in the radial direction and the axial direction through bearings (14, 15, 16 and 17), and meanwhile, the stator component and the rotor component can only do relative rotation movement with the same axis;
a sensor (18) is arranged between the stator shaft (4) of the stator component and the inner rotor shaft (11) of the inner rotor component to measure the angular position of the rotor component relative to the stator component;
a lip seal (19) is mounted between the stator shaft (4) of the stator assembly and the outer rotor cover (5) of the outer rotor assembly, thereby achieving a water and dust seal between the stator assembly and the rotor assembly.
2. The novel motor structure of claim 1, wherein: the outer rotor magnetic steels (8) are arranged along the inner surface of the outer rotor iron core (7), and the magnetization directions are alternately distributed along the radius direction.
3. The novel motor structure of claim 2, wherein: a plurality of inner rotor magnet steels (13) are arranged along the outer surface of the inner rotor iron core (11), and the magnetization directions are alternately distributed along the radius direction.
4. A novel motor construction in accordance with claim 3, wherein: the number of the outer rotor magnetic steel (8) is the same as that of the inner rotor magnetic steel (13).
5. A novel motor structure according to claim 1 or 2, characterized in that: the number of the slots on the inner side of the stator core (1) is less than that on the outer side.
6. The novel motor structure of claim 1, wherein: the stator core (1) is clamped and fixed between the stator shaft (4) and the stator end cover (5) through a plurality of bolts (6).
7. The novel motor structure of claim 1, wherein: an outer rotor shell (9) of the outer rotor component and an inner rotor shaft (11) of the inner rotor component are rigidly fixed through screws.
8. The novel motor structure of claim 5, wherein: the number of slots on the inner side of the stator core is 30 and the number of slots on the outer side is 48.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312471.1A CN111490656A (en) | 2020-04-20 | 2020-04-20 | Novel motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312471.1A CN111490656A (en) | 2020-04-20 | 2020-04-20 | Novel motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111490656A true CN111490656A (en) | 2020-08-04 |
Family
ID=71811080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010312471.1A Pending CN111490656A (en) | 2020-04-20 | 2020-04-20 | Novel motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111490656A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436703A (en) * | 2020-12-28 | 2021-03-02 | 齐鲁工业大学 | Double-rotor roller motor |
| CN112838728A (en) * | 2020-12-30 | 2021-05-25 | 顺丰科技有限公司 | Birotor permanent magnet synchronous motor and working method thereof |
| CN114074541A (en) * | 2020-08-17 | 2022-02-22 | 陆继荣 | Special coreless hub motor for electric automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202475198U (en) * | 2012-03-15 | 2012-10-03 | 佛山市顺德区苇源电器有限公司 | Single-phase brushless direct-current motor with birotor structure |
| CN103647381A (en) * | 2013-12-24 | 2014-03-19 | 哈尔滨工业大学 | Iron coreless permanent magnet limited angle motor |
| CN104795950A (en) * | 2015-04-23 | 2015-07-22 | 中国电子科技集团公司第二十一研究所 | Double-magnetic-circuit permanent magnet type limited angle motor |
| CN106655672A (en) * | 2017-03-03 | 2017-05-10 | 福建亚南电机有限公司 | Permanent magnet double-stator-rotor high-torque-density hub motor device |
| CN108365717A (en) * | 2017-01-27 | 2018-08-03 | 丰田自动车株式会社 | Electric rotating machine |
| KR20180089840A (en) * | 2017-02-01 | 2018-08-09 | 선상규 | Two rotors using generators |
-
2020
- 2020-04-20 CN CN202010312471.1A patent/CN111490656A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202475198U (en) * | 2012-03-15 | 2012-10-03 | 佛山市顺德区苇源电器有限公司 | Single-phase brushless direct-current motor with birotor structure |
| CN103647381A (en) * | 2013-12-24 | 2014-03-19 | 哈尔滨工业大学 | Iron coreless permanent magnet limited angle motor |
| CN104795950A (en) * | 2015-04-23 | 2015-07-22 | 中国电子科技集团公司第二十一研究所 | Double-magnetic-circuit permanent magnet type limited angle motor |
| CN108365717A (en) * | 2017-01-27 | 2018-08-03 | 丰田自动车株式会社 | Electric rotating machine |
| KR20180089840A (en) * | 2017-02-01 | 2018-08-09 | 선상규 | Two rotors using generators |
| CN106655672A (en) * | 2017-03-03 | 2017-05-10 | 福建亚南电机有限公司 | Permanent magnet double-stator-rotor high-torque-density hub motor device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074541A (en) * | 2020-08-17 | 2022-02-22 | 陆继荣 | Special coreless hub motor for electric automobile |
| CN112436703A (en) * | 2020-12-28 | 2021-03-02 | 齐鲁工业大学 | Double-rotor roller motor |
| CN112838728A (en) * | 2020-12-30 | 2021-05-25 | 顺丰科技有限公司 | Birotor permanent magnet synchronous motor and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111490656A (en) | Novel motor structure | |
| CN100341230C (en) | Torque motor having a segment design | |
| CN103219823B (en) | A kind of wheel rim drive-type counteraction flyback | |
| CN102868271B (en) | Double-stator rotating linear motor | |
| US20140117790A1 (en) | Rotating electrical machine | |
| WO2021189595A1 (en) | Multi-degree-of-freedom magnetic field modulation-type magnetic screw actuator and integrated design method therefor | |
| CN109067024B (en) | Large-torque micro-vibration magnetic suspension switched reluctance motor | |
| CN108599495B (en) | Disc type double-support double-stator permanent magnet synchronous traction machine | |
| CN104682642A (en) | Two-degree-of-freedom motor | |
| CN102761220A (en) | Magnet-embedded rotary motor | |
| CN211239582U (en) | High-speed direct-current brushless motor for automobile brake system | |
| CN112448492A (en) | Axial and radial omnidirectional flux motor | |
| CN111404341A (en) | Disk type permanent magnet motor applied to crane | |
| CN115313718B (en) | Annular Halbach permanent magnet array axial flux permanent magnet motor | |
| CN216343036U (en) | Magnetic suspension hydrogen circulating pump | |
| CN115833466A (en) | Motor of coaxial integrated magnetic gear speed reducer | |
| CN211830520U (en) | Disk type permanent magnet motor applied to crane | |
| CN211239475U (en) | High-speed magnetic suspension switched reluctance motor | |
| CN202798174U (en) | Novel permanent magnet motor of discrete electromagnet stator structure | |
| CN115411904A (en) | Permanent magnet motor | |
| CN210431046U (en) | Rotor unit of outer rotor motor split type sealing design | |
| CN112821622A (en) | External winding motor | |
| CN108539944B (en) | Disk type permanent magnet synchronous exhaust fan motor | |
| CN208272816U (en) | Disc type dual-gripper double-stator permanent magnet synchro traction machine | |
| CN207320965U (en) | More rotor multiple stators iron-core less motor rotor structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200804 |