CN214756011U - Double-rotor motor - Google Patents
Double-rotor motor Download PDFInfo
- Publication number
- CN214756011U CN214756011U CN202120879099.2U CN202120879099U CN214756011U CN 214756011 U CN214756011 U CN 214756011U CN 202120879099 U CN202120879099 U CN 202120879099U CN 214756011 U CN214756011 U CN 214756011U
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- motor
- outer rotor
- dual
- 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.)
- Active
Links
Images
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a double-rotor motor, which is rotatably arranged at two ends of a fixed shaft by arranging a bearing assembly, a stator assembly is fixedly connected at the middle part of the fixed shaft, a passing part which is symmetrically arranged is arranged on a stator tooth, the passing part is arranged at one side of the stator tooth close to an inner rotor and an outer rotor, a cable passes through the passing part and winds the passing part on the stator tooth to form a winding, the outer surface of the inner rotor is provided with an inner rotor magnetic yoke, the inner rotor magnetic yoke is alternately provided with inner rotor permanent magnets which are arranged corresponding to the stator tooth and have the same quantity, the inner surface of the outer rotor is provided with an outer rotor magnetic yoke, the outer rotor magnetic yoke is alternately provided with outer rotor permanent magnets which are arranged corresponding to the stator tooth and have the same quantity, thereby forming a motor with two air gaps and two rotors, compared with a single-rotor motor, the volume and the quality of the winding on the stator can be equal to or be increased by two times, and simultaneously, the number of teeth of the stator magnetic circuits is kept equal, and the power of the motor is increased under the condition of not reducing the energy efficiency.
Description
Technical Field
The utility model relates to a field of obtaining mechanical energy through the energy of switching magnetic field and electrostatic field especially relates to a birotor motor.
Background
Along with the continuous popularization of clean energy use, high torque motors receive more and more attention, and the power loss is caused due to higher harmonics in the existing motors, so that the motor torque is low, and the working efficiency is low.
Therefore, it is necessary to provide a motor having high operating efficiency and high torque.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at: a motor having a double rotor structure and having high operating efficiency is provided.
To achieve one or a part or all of the above or other objects, the present invention provides a dual rotor motor,
the method comprises the following steps: the motor comprises a stator component, an inner rotor, an outer rotor, a fixed shaft, a bearing component and an end cover, wherein the end cover, the fixed shaft and the outer rotor enclose to form an inner sealed space of the motor;
the end covers are rotatably arranged at two ends of the fixed shaft through bearing assemblies, and the stator assembly is fixedly connected to the middle of the fixed shaft;
the stator assembly comprises stator teeth, windings and a stator end cover, the stator end cover is fixedly connected with the fixed shaft, the stator teeth are provided with passing parts which are symmetrically arranged, and cables pass through the passing parts and are wound on the stator teeth to form the windings;
the outer surface of the inner rotor is provided with an inner rotor magnetic yoke, and the inner rotor magnetic yoke is alternately provided with inner rotor permanent magnets which are arranged correspondingly to the stator teeth and are equal in number;
and the inner surface of the outer rotor is provided with an outer rotor magnetic yoke, and the outer rotor magnetic yoke is alternately provided with outer rotor permanent magnets which are arranged correspondingly to the stator teeth and are equal in number.
Optionally, the inner rotor permanent magnet is bonded to the inner rotor magnetic yoke, and the outer rotor permanent magnet is bonded to the outer rotor magnetic yoke.
Optionally, the outer surface of the through part is provided with through slots for spacing the stator teeth.
Optionally, the stator teeth are provided with mounting holes distributed circumferentially at portions between the through portions for mounting the stator end cover, and the mounting holes are arranged in a staggered manner with the through portions.
Optionally, the stator end cover is of a disk-shaped structure as a whole, and slots arranged opposite to the windings are uniformly arranged at the edge of the stator end cover.
Optionally, the middle part of the stator end cover protrudes outwards to form a stator cantilever, and the stator cantilever is connected with the fixed shaft.
Optionally, openings are uniformly distributed between the stator cantilever and the slot along the circumferential direction of the stator end cover.
Optionally, the rotor further comprises a hub, wherein the hub is sleeved outside the outer rotor and is fixedly connected with the end cover.
Optionally, the end cover is of a disk-shaped structure with a middle portion arched, and a plurality of groups of fixing holes for fixedly connecting the inner rotor and/or the outer rotor are arranged at the edge of the end cover.
Optionally, the bearing assembly comprises at least two sets of ball bearings and spherical plain bearings, the ball bearings being disposed between two of the spherical plain bearings.
Implement the utility model discloses, will have following beneficial effect:
the motor is characterized in that bearing assemblies are arranged at two ends of a fixed shaft in a rotating mode, stator assemblies are fixedly connected to the middle of the fixed shaft, end covers are arranged at two ends of the fixed shaft through the bearing assemblies, the stator end covers are fixedly connected with the fixed shaft, the stator teeth are provided with passing parts which are symmetrically arranged, the passing parts are positioned on one sides, close to an inner rotor and an outer rotor, of the stator teeth, cables penetrate through the passing parts and are wound on the stator teeth to form windings, an inner rotor magnetic yoke is arranged on the outer surface of the inner rotor on each stator tooth, inner rotor permanent magnets which are equal in number and are arranged corresponding to the stator teeth are alternately arranged on the inner rotor magnetic yoke, an outer rotor magnetic yoke is arranged on the inner surface of the outer rotor, and outer rotor permanent magnets which are equal in number and are arranged corresponding to the stator teeth are alternately arranged on the outer rotor magnetic yoke, so that the motor with two air gaps and two rotors is formed, and simultaneously, the number of teeth of the stator magnetic circuits is kept equal, and the power of the motor is increased under the condition of not reducing the energy efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an isometric view of one embodiment of a dual rotor motor of the present invention;
fig. 2 is a cross-sectional view of an embodiment of the dual rotor motor of the present invention;
fig. 3 is an exploded view of an embodiment of the dual rotor motor of the present invention;
fig. 4 is a front view of an embodiment of the dual rotor motor stator assembly, inner rotor, and outer rotor of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
fig. 6 is a schematic view of the stator teeth of the dual-rotor motor of the present invention.
In the figure: 1-a stator assembly; 11-stator teeth; 111-a pass through; 1111-through grooves; 112-mounting holes; 12-a winding; 13-a stator end cap; 131-a stator cantilever; 132-opening a hole; 2-an inner rotor; 21-inner rotor yoke; 211-inner rotor permanent magnets; 3-an outer rotor; 31-an outer rotor yoke; 311-outer rotor permanent magnets; 4, fixing a shaft; 5-a bearing assembly; 51-ball bearings; 52-knuckle bearing; 6-end cover; 7-hub.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as … … according to upper, lower, left, right, front and back) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
FIG. 1 is an axial view of an embodiment of the dual rotor motor of the present invention, FIG. 2 is a cross-sectional view of an embodiment of the dual rotor motor of the present invention, FIG. 3 is an exploded view of an embodiment of the dual rotor motor of the present invention, FIG. 4 is a front view of an embodiment of the dual rotor motor stator assembly, inner rotor, outer rotor of the present invention, fig. 5 is the enlargements of a department in fig. 4, fig. 6 is the utility model discloses the schematic diagram of birotor motor stator tooth, refer to fig. 1 to fig. 6, the birotor motor is including whole discoid stator module 1 that is, inner rotor 2, outer rotor 3, fixed axle 4, bearing assembly 5 and end cover 6, end cover 6 passes through bearing assembly 5 and installs the both ends at fixed axle 4, fixed axle 4 wears to establish and is connected with end cover 6 rotation in bearing assembly 5, stator module 1 fixed connection is at the middle part of fixed axle 4 to be located between the both ends cover 6. Stator module 1 includes stator tooth 11, winding 12 and stator end cover 13, and stator end cover 13 and fixed axle 4 rigid coupling are equipped with through portion 111 that appears the symmetry and set up on stator tooth 11, and through portion 111 is located one side that is close to inner rotor 2 and outer rotor 3 on stator tooth 11, and the cable passes through portion 111 and establishes on stator tooth 11 and form winding 12. Through-grooves 1111 for spacing stator teeth 11 are provided on the outer surface of the through-portion 111, and the stator teeth 11 are spaced apart by inserting a spacer member into the through-grooves 1111.
Preferably, the portion of stator tooth 11 located between passing portions 111 is provided with mounting holes 112 distributed circumferentially for mounting stator end cover 13, and mounting holes 112 and passing portions 111 are arranged in a staggered manner, so that stator assembly 1 is compact and reasonable in structure on the premise of ensuring the structural strength of stator tooth 11.
The outer surface of the inner rotor 2 is provided with an inner rotor yoke 21, and the inner rotor yoke 21 is alternately provided with inner rotor permanent magnets 211 which are arranged corresponding to the stator teeth 11 and have the same number. Outer rotor yoke 31 is provided on the inner surface of outer rotor 3, and outer rotor permanent magnets 311 of the same number as stator teeth 11 are alternately provided on outer rotor yoke 31. Thereby make the utility model discloses a motor forms has two air gaps, and the motor of two rotors compares with the motor of single rotor, the utility model discloses a volume and the quality of winding 12 on the motor stator module 1 can equal or increase the twice, and the number of teeth that can also keep stator magnetic circuit simultaneously equals for increase motor power under the condition that does not reduce energy efficiency.
Preferably, the inner rotor permanent magnet 211 is bonded to the inner rotor yoke 21, and the outer rotor permanent magnet 311 is bonded to the outer rotor permanent magnet 311, so that the inner rotor permanent magnet 211 and the outer rotor permanent magnet 311 are connected conveniently, and the magnetic field strength of the inner rotor permanent magnet 211 and the magnetic field strength of the outer rotor permanent magnet 311 are not affected even if the inner rotor permanent magnet 211 and the outer rotor permanent magnet 311 are connected through bonding, thereby ensuring the high-efficiency and stable operation of the dual-rotor motor.
Preferably, stator end cover 13 is whole to be discoid structure to evenly be provided with in the edge of stator end cover 13 and be the fluting that sets up relatively with winding 12, the motor of being convenient for on the one hand flows at the course of the work, makes the heat that motor work produced scatter and disappear fast, and the design of on the other hand trompil 132 can reduce stator end cover 13's quality, reduces the motor and overcomes the energy loss that self weight brought, thereby improves the effective utilization of electric energy.
Preferably, the middle part of the stator end cover 13 protrudes outwards to form a stator cantilever 131, and the stator cantilever 131 is fixedly connected with the fixed shaft 4, so that the inner rotor 2 and the outer rotor 3 drive the end cover 6 to rotate by using the fixed shaft 4 as a rotating shaft.
Preferably, the open pores 132 are uniformly distributed between the stator cantilever 131 and the slot along the circumferential direction of the stator end cover 13, and the arrangement of the open pores 132 can obviously reduce the weight of the stator end cover 13, reduce the energy loss caused by the self weight of the stator end cover 13, and further improve the effective utilization rate of electric energy.
Preferably, the dual-rotor motor further comprises a hub 7, the hub 7 is sleeved and connected outside the outer rotor 3 and is tightly connected with the end cover 6, and the two end covers 6 clamp the hub 7 between the two. Specifically, the hub 7 is a circular ring structure with a concave middle part, and the cross section of the hub is arranged in a concave shape.
Preferably, the end cover 6 is a disk-shaped structure with a middle arch, and a plurality of groups of fixing holes for fixedly connecting the inner rotor 2 are arranged at the edge of the end cover 6. In another embodiment, the end cover 6 is a disk-shaped structure with a middle arch, and a plurality of sets of fixing holes for fixedly connecting the outer rotor 3 are arranged at the edge of the end cover 6.
Preferably, the bearing assembly 5 comprises two sets of ball bearings 51 and knuckle bearings 52, the ball bearings 51 are used for supporting the end cover 6 and enabling the end cover 6 to be reliable in high-speed rotation relative to the fixed shaft 4, and the knuckle bearings 52 are arranged so that the inner rotor 2 and the outer rotor 3 can rotate relative to the fixed shaft 4 within a range of 360 degrees to have a certain adjustment space, and further, a certain flexible buffer space is formed between the hub 7 and the fixed shaft 4.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A dual rotor motor, comprising: the motor comprises a stator component, an inner rotor, an outer rotor, a fixed shaft, a bearing component and an end cover, wherein the end cover, the fixed shaft and the outer rotor enclose to form an inner sealed space of the motor;
the end covers are rotatably arranged at two ends of the fixed shaft through bearing assemblies, and the stator assembly is fixedly connected to the middle of the fixed shaft;
the stator component comprises stator teeth, windings and a stator end cover, the stator end cover is fixedly connected with the fixed shaft, the stator teeth are provided with passing parts which are symmetrically arranged, the passing parts are positioned on one sides of the stator teeth, which are close to the inner rotor and the outer rotor, and cables pass through the passing parts and are wound on the stator teeth to form the windings;
the outer surface of the inner rotor is provided with an inner rotor magnetic yoke, and the inner rotor magnetic yoke is alternately provided with inner rotor permanent magnets which are arranged correspondingly to the stator teeth and are equal in number;
and the inner surface of the outer rotor is provided with an outer rotor magnetic yoke, and the outer rotor magnetic yoke is alternately provided with outer rotor permanent magnets which are arranged correspondingly to the stator teeth and are equal in number.
2. The dual rotor motor of claim 1, wherein the inner rotor permanent magnets are bonded to the inner rotor yoke and the outer rotor permanent magnets are bonded to the outer rotor yoke.
3. The double-rotor motor according to claim 1, wherein an outer surface of the through portion is provided with through grooves for spacing the stator teeth.
4. The dual-rotor motor as claimed in claim 1, wherein the portions of the stator teeth between the through portions are provided with circumferentially distributed mounting holes for mounting the stator end covers, the mounting holes being offset from the through portions.
5. The dual rotor motor as claimed in claim 1, wherein the stator cover has a disk-shaped structure as a whole, and slots are uniformly formed at an edge of the stator cover so as to be opposed to the windings.
6. The dual-rotor motor as claimed in claim 5, wherein a middle portion of the stator cover is protruded outwardly to form a stator cantilever, and the stator cantilever is coupled to the fixed shaft.
7. The dual-rotor motor of claim 6, wherein openings are uniformly distributed between the stator cantilever and the slot along the circumferential direction of the stator end cover.
8. The dual-rotor motor as claimed in claim 1, further comprising a hub fitted around the outer rotor and fastened to the end cap.
9. The birotor motor of claim 1, wherein the end cap is a disk-shaped structure with a central part arched, and a plurality of sets of fixing holes for fixedly connecting the inner rotor and/or the outer rotor are provided at the edge of the end cap.
10. The dual rotor motor as claimed in claim 1, wherein the bearing assembly includes at least two sets of ball bearings and knuckle bearings, the ball bearings being disposed between the two knuckle bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120879099.2U CN214756011U (en) | 2021-04-25 | 2021-04-25 | Double-rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120879099.2U CN214756011U (en) | 2021-04-25 | 2021-04-25 | Double-rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214756011U true CN214756011U (en) | 2021-11-16 |
Family
ID=78613974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120879099.2U Active CN214756011U (en) | 2021-04-25 | 2021-04-25 | Double-rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214756011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362465A (en) * | 2022-01-11 | 2022-04-15 | 郑余德 | Co-coil double-rotor permanent magnet motor |
-
2021
- 2021-04-25 CN CN202120879099.2U patent/CN214756011U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362465A (en) * | 2022-01-11 | 2022-04-15 | 郑余德 | Co-coil double-rotor permanent magnet motor |
| CN114362465B (en) * | 2022-01-11 | 2024-01-16 | 郑余德 | Common-coil double-rotor permanent magnet motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8288916B2 (en) | Composite electromechanical machines with uniform magnets | |
| US8188633B2 (en) | Integrated composite electromechanical machines | |
| CN102624108B (en) | Stator for axial clearance type motor and axial clearance type motor | |
| CN214756011U (en) | Double-rotor motor | |
| CN214544057U (en) | Double-rotor motor | |
| CN102624115B (en) | End play type motor and rotor thereof | |
| CN212462899U (en) | Stator core, stator core assembly, motor and high-speed fan | |
| JPS635177A (en) | Generator using hydraulic force | |
| CN216794817U (en) | Inner and outer stator double-air gap permanent magnet synchronous motor | |
| CN111864955A (en) | Stator module and motor | |
| CN213243781U (en) | Disk generator | |
| CN213937572U (en) | Permanent-magnet hollow coil generator | |
| CN102263457B (en) | Brushed motor | |
| CN214124971U (en) | Motor rotor subassembly and motor | |
| CN211701635U (en) | Stator and motor | |
| CN207994879U (en) | Motor and food cooking machine | |
| CN209389893U (en) | A kind of birotor permanent magnetic synchronous electric motor rotor fixed structure | |
| CN207994876U (en) | Motor and food cooking machine | |
| CN214756010U (en) | Outer rotor brushless motor with double-rotor structure | |
| CN217240422U (en) | Rotor punching sheet of permanent magnet synchronous motor, motor rotor and permanent magnet synchronous motor | |
| CN214281051U (en) | Claw-pole rotor hybrid stepping motor | |
| CN212811401U (en) | Micro motor rotor and micro motor with same | |
| CN218829659U (en) | Magnetic suspension brushless motor | |
| CN218102737U (en) | Stator structure of magnetic driving device | |
| CN214154174U (en) | Energy-saving motor without slot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220418 Address after: No.8, Huaxin Road, science and Technology Park, Beichen economic and Technological Development Zone, Tianjin Patentee after: Houhua (Tianjin) Power Technology Co.,Ltd. Address before: 518000 17g, Nanshan District Free Trade Center, Shenzhen City, Guangdong Province Patentee before: SHENZHEN GREENTEST TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |