CN204517560U - A kind of electric rotating machine of combining structure - Google Patents
A kind of electric rotating machine of combining structure Download PDFInfo
- Publication number
- CN204517560U CN204517560U CN201520261779.2U CN201520261779U CN204517560U CN 204517560 U CN204517560 U CN 204517560U CN 201520261779 U CN201520261779 U CN 201520261779U CN 204517560 U CN204517560 U CN 204517560U
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- flux
- combining structure
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Abstract
The utility model discloses the electric rotating machine that a kind of axis and radial flux motors are combined, and it mainly comprises rotating shaft, is positioned at the radial flux motors in the middle of rotating shaft, and is positioned at first, second axial-flux electric machine at rotating shaft two ends; Radial flux motors comprises the radial rotor and radial stator iron core that arrange from inside to outside diametrically; First axial-flux electric machine is included in and is axially set in turn in the first axial rotor on the left of radial rotor and the first axial stator is unshakable in one's determination; Second axial-flux electric machine is included in and is axially set in turn in the second axial rotor on the right side of radial rotor and the second axial stator is unshakable in one's determination, radial rotor, the first axial rotor, and the second axial rotor rotates along same described rotating shaft.The utility model utilizes the space below motor End winding, with the addition of two the first axial-flux electric machines and the second axial-flux electric machine at motor both ends, while raising motor torque density, also has good fault-tolerance, improves the reliability of system.
Description
Technical field
The utility model relates to a kind of electric rotating machine, is specifically related to the electric rotating machine that a kind of axis and radial flux motors are combined.
Background technology
Drive motors is as one of the key core parts of electric automobile, and it does one's utmost to pursue the performance of high torque density, high reliability, low speed high torque and invariable power wide range speed control.The performance index of its harshness force motor must systematically consider low speed and high speed performance when designing, to reach good compromise balance.
When drive motors designs, if ensure that having large torque at the low rotational speed exports, so due to its higher back-emf, output performance at a high speed will be limited, although expansion speed can be carried out by weak magnetic, but be still not enough to support the required large range of speeds of electric automobile, and also cannot all keep higher efficiency in the whole range of speeds.
Simultaneously, in order to improve the reliability of motor, a kind of method generally adopted adopts polyphase machine technology, like this when breaking down, polyphase machine can use phase shortage technology to continue to run, but polyphase machine control technology is more complicated, cost is higher, and need larger installing space, and electric automobile is very harsh to space requirement, and then be difficult to obtain extensive use.
Utility model content
For property requirements such as low speed high torque, wide speed adjustable range and high reliability that electric automobile requires, the utility model object is to provide a kind of composition motor structure with higher low speed torque and wider speed adjustable range.
The technical solution of the utility model is achieved in that
The electric rotating machine of combining structure comprises a rotating shaft, is positioned at a radial flux motors in the middle of rotating shaft, and is positioned at the first axial-flux electric machine and second axial-flux electric machine at rotating shaft two ends; Described radial flux motors comprises the radial rotor and radial stator iron core that arrange from inside to outside diametrically, coiling radial stator winding on radial stator iron core; First axial-flux electric machine is included in and is axially set in turn in the first axial rotor on the left of described radial rotor and the first axial stator is unshakable in one's determination, coiling first axial magnetic flux stator winding on the first axial stator iron core; Second axial-flux electric machine is included in and is axially set in turn in the second axial rotor on the right side of described radial rotor and the second axial stator is unshakable in one's determination, coiling second axial magnetic flux stator winding on second axial stator iron core, described radial rotor, described first axial rotor, described second axial rotor rotates along same described rotating shaft.
As preferably, described radial stator iron core is fixed on casing, adopts interference fit hot jacket to enter.
As preferably, described radial rotor built-in ends of the earth radial rotor permanent magnetic steel, magnetizing direction adopts cutting orientation magnetizing.
As preferably, the first axial rotor is included in and is axially set in turn in the first axial magnetic conduction rotor yoke on the left of radial rotor and the first axial rotor permanent magnetic steel.
As preferably, N pole and the S pole of described first axial rotor permanent magnetic steel are intervally arranged.
As preferably, described second axial rotor is included in and is axially set in turn in the second axial rotor permanent magnetic steel on the right side of radial rotor and the second axial magnetic conduction rotor yoke.
As preferably, N pole and the S pole of described second axial rotor permanent magnetic steel are intervally arranged.
As preferably, be provided with first between described radial rotor and the first axial rotor every magnetic baffle plate, be provided with second between described radial rotor and the second axial rotor every magnetic baffle plate.
As preferably, described rotating shaft is fixed in casing, and the front-end and back-end of described casing connect front end housing and rear end cap respectively by bolt; Described front end housing is provided with clutch shaft bearing; Described rear end cap is provided with the second bearing; Described rotating shaft is fixed with between described clutch shaft bearing and the second bearing.
As preferably, described first axial stator iron core is fixed on front end housing, and described second axial stator iron core is fixed on rear end cap, and fixed form selects punching, tapping, or poured with epoxy resin.
The utility model compared with prior art, have the following advantages: the utility model utilizes the space below motor End winding, two the first axial-flux electric machines and the second axial-flux electric machine is with the addition of at motor both ends, when low speed requires larger torque, the radial flux motors of first axial-flux electric machine at two ends, the second axial-flux electric machine and centre is in parallel, jointly outwards provide torque, and then there is higher torque density; When the external world needs to run on higher rotating speed, the radial flux motors of centre is turned off, only by the first axial-flux electric machine, the outside Driving Torque of the second axial-flux electric machine at two ends, now the back-emf of whole system reduces, even without the need to weak magnetic, ensure that high efficiency, thus there is very wide speed adjustable range.
Accompanying drawing explanation
Fig. 1 is the electric rotating machine generalized section of the utility model embodiment;
Fig. 2 is the utility model radial rotor floor map;
Fig. 3 is the utility model axial rotor plane structure chart;
Fig. 4 is the utility model axial rotor three-dimensional structure diagram;
Fig. 5 is the moment of torsion-speed curves schematic diagram of radial flux motors;
Fig. 6 is the moment of torsion-speed curves schematic diagram of axial-flux electric machine;
Fig. 7 is the moment of torsion-speed curves schematic diagram of composition motor.
In figure: 1-rotating shaft; 2-1-clutch shaft bearing; 2-2-second bearing; 3-front end housing; 4-1-first axial stator is unshakable in one's determination; 4-2-second axial stator is unshakable in one's determination; 5-1-first axial magnetic flux stator winding; 5-2-second axial magnetic flux stator winding; 6-1-first axial rotor permanent magnetic steel; 6-2-second axial rotor permanent magnetic steel; The axial magnetic conduction rotor yoke of 7-1-first; The axial magnetic conduction rotor yoke of 7-2-second; 8-1-first is every magnetic baffle plate; 8-2-second is every magnetic baffle plate; 9-radial stator winding; 10-radial stator is unshakable in one's determination; 11-radial rotor; 12-casing; 13-rear end cap; 14-radial rotor permanent magnetic steel.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in accompanying drawing 1 to 7, the electric rotating machine of a kind of combining structure described in the utility model comprises the first axial-flux electric machine and the second axial-flux electric machine that are positioned at a middle radial flux motors and are positioned at two ends.
Described radial flux motors comprises the radial rotor 11 being positioned at centre, is arranged at the radial stator iron core 10 outside radial rotor 11 diametrically, coiling radial stator winding 9 on radial stator iron core 10.Described radial stator iron core 10 is fixed on casing 12, adopts interference fit hot jacket to enter.Described radial rotor 11 built-in radial rotor permanent magnet magnet steel 14, magnetizing direction adopts cutting orientation magnetizing.Refer to Fig. 2, radial rotor 11 described in diagram is ends of the earth structure, but in some other embodiment, can be also such as four poles or sextupole structure, but not as limit.
First axial-flux electric machine comprises the first axial stator 4-1 unshakable in one's determination, is presented axially in the first axial rotor on the right side of the first axial stator 4-1 unshakable in one's determination.Coiling first axial magnetic flux stator winding 5-1 on first axial stator 4-1 unshakable in one's determination.Described first axial rotor comprises and is set in turn in described first axial rotor permanent magnetic steel 6-1 on the right side of the first axial stator 4-1 unshakable in one's determination and the first axial magnetic conduction rotor yoke 7-1.Refer to Fig. 3 and Fig. 4, described first axial rotor permanent magnetic steel 6-1 adopts axial charging, and its N pole and S pole are intervally arranged.
Second axial-flux electric machine comprises the second axial stator 4-2 unshakable in one's determination, is presented axially in the second axial rotor on the left of the second axial stator 4-2 unshakable in one's determination, coiling second axial magnetic flux stator winding 5-2 on the second axial stator 4-2 unshakable in one's determination.Described second axial rotor comprises and is set in turn in the second axial rotor permanent magnetic steel 6-2 on the left of the second axial stator 4-2 unshakable in one's determination and the second axial magnetic conduction rotor yoke 7-2.Described second axial rotor permanent magnetic steel 6-2 adopts axial charging, and its N pole and S pole are intervally arranged.
First is provided with every magnetic baffle plate 8-1 between described radial rotor 11 and the first axial rotor; Described first is axially arranged between described radial rotor 11 and the first axial magnetic conduction rotor yoke 7-1 every magnetic baffle plate 8-1.
Second is provided with every magnetic baffle plate 8-2 between described radial rotor 11 and the second axial rotor; Described second is axially arranged between described radial rotor 11 and the second axial magnetic conduction rotor yoke 7-2 every magnetic baffle plate 8-2.
The front-end and back-end of described casing 12 connect front end housing 3 and rear end cap 13 respectively by bolt; Described front end housing 3 is provided with clutch shaft bearing 2-1; Described rear end cap 13 is provided with the second bearing 2-2; Be fixed with rotating shaft 1 between described clutch shaft bearing 2-1 and the second bearing 2-2, described rotating shaft 1 is arranged along the pivot center of electric rotating machine, described radial rotor 11, described first axial rotor, and the second axial rotor rotates along same described rotating shaft.Described first axial stator 4-1 unshakable in one's determination is fixed on front end housing 3, and described second axial stator 4-2 unshakable in one's determination is fixed on rear end cap 3, and fixed form can be punching, tapping, or poured with epoxy resin.
As shown in Fig. 5,6,7, described radial flux motors adopts and designs based on having higher efficiency under high speed; Described first axial-flux electric machine, described second axial-flux electric machine all adopt and design based on having higher efficiency under high speed; By radial flux motors and axial cooperatively interacting, whole electric system is made all to maintain higher efficiency in wider velocity interval.
The utility model has the following advantages:
1, under given voltage and volume, radial flux motors combines the first axial-flux electric machine, the second axial-flux electric machine, common outwards Driving Torque, larger torque thus can be provided to export, have higher unit volume and exert oneself.
2, under given voltage and volume, when running on high engine speed range, radial flux motors turns off, only the first axial-flux electric machine and the second axial-flux electric machine work independently, cut down the unloaded back-emf of motor, and then make motor can run on higher rotary speed area with higher efficiency.
3, during design, the radial flux motors characteristic for centre more can lay particular emphasis on larger torque and consider to have higher back emf coefficient, select suitable speed range of operation, and then have higher efficiency in this velocity interval; For when the first axial-flux electric machine and the design of the second axial-flux electric machine according to needed for the maximum speed that reaches, design its back emf coefficient, make, in the whole range of speeds, all there is higher efficiency.
4, when a certain motor break down cannot work time, other two motors can be switched and carry out work, there is certain fault-tolerance, thus there is higher reliability.
It should be noted that; above-mentioned left and right; inside and outside position relationship such as grade; only defined to be described clearly; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. an electric rotating machine for combining structure, is characterized in that: comprise rotating shaft, is positioned at a radial flux motors in the middle of rotating shaft, and is positioned at the first axial-flux electric machine and second axial-flux electric machine at rotating shaft two ends; Described radial flux motors comprises the radial rotor and radial stator iron core that arrange from inside to outside diametrically, coiling radial stator winding on radial stator iron core; First axial-flux electric machine is included in and is axially set in turn in the first axial rotor on the left of described radial rotor and the first axial stator is unshakable in one's determination, coiling first axial magnetic flux stator winding on the first axial stator iron core; Second axial-flux electric machine is included in and is axially set in turn in the second axial rotor on the right side of described radial rotor and the second axial stator is unshakable in one's determination, coiling second axial magnetic flux stator winding on second axial stator iron core, described radial rotor, described first axial rotor, described second axial rotor rotates along same described rotating shaft.
2. the electric rotating machine of a kind of combining structure according to claim 1, is characterized in that: described radial stator iron core is fixed on casing, adopts interference fit hot jacket to enter.
3. the electric rotating machine of a kind of combining structure according to claim 1, is characterized in that: described radial rotor built-in ends of the earth radial rotor permanent magnetic steel, and magnetizing direction adopts cutting orientation magnetizing.
4. the electric rotating machine of a kind of combining structure according to claim 1, is characterized in that: described first axial rotor is included in and is axially set in turn in the first axial magnetic conduction rotor yoke on the left of radial rotor and the first axial rotor permanent magnetic steel.
5. the electric rotating machine of a kind of combining structure according to claim 4, is characterized in that: N pole and the S pole of described first axial rotor permanent magnetic steel are intervally arranged.
6. the electric rotating machine of a kind of combining structure according to claim 1, is characterized in that: described second axial rotor is included in and is axially set in turn in the second axial rotor permanent magnetic steel on the right side of radial rotor and the second axial magnetic conduction rotor yoke.
7. the electric rotating machine of a kind of combining structure according to claim 6, is characterized in that: N pole and the S pole of described second axial rotor permanent magnetic steel are intervally arranged.
8. the electric rotating machine of a kind of combining structure according to claim 1, is characterized in that: be provided with first between described radial rotor and the first axial rotor every magnetic baffle plate, is provided with second every magnetic baffle plate between described radial rotor and the second axial rotor.
9. the electric rotating machine of a kind of combining structure according to claim 1, is characterized in that: described rotating shaft is fixed in casing, and the front-end and back-end of described casing connect front end housing and rear end cap respectively by bolt; Described front end housing is provided with clutch shaft bearing; Described rear end cap is provided with the second bearing; Described rotating shaft is fixed with between described clutch shaft bearing and the second bearing.
10. the electric rotating machine of a kind of combining structure according to claim 9, it is characterized in that: described first axial stator iron core is fixed on front end housing, described second axial stator iron core is fixed on rear end cap, and fixed form selects punching, tapping, or poured with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261779.2U CN204517560U (en) | 2015-04-25 | 2015-04-25 | A kind of electric rotating machine of combining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261779.2U CN204517560U (en) | 2015-04-25 | 2015-04-25 | A kind of electric rotating machine of combining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517560U true CN204517560U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520261779.2U Expired - Fee Related CN204517560U (en) | 2015-04-25 | 2015-04-25 | A kind of electric rotating machine of combining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204517560U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528437A (en) * | 2017-10-27 | 2017-12-29 | 山东理工大学 | A kind of composite electromagnetic motor used for electric vehicle |
| WO2018076482A1 (en) * | 2016-10-31 | 2018-05-03 | 广东威灵电机制造有限公司 | Motor |
| CN112713683A (en) * | 2020-12-11 | 2021-04-27 | 珠海格力电器股份有限公司 | Composite magnetic field permanent magnet rotor, manufacturing method thereof, motor rotor and motor |
-
2015
- 2015-04-25 CN CN201520261779.2U patent/CN204517560U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076482A1 (en) * | 2016-10-31 | 2018-05-03 | 广东威灵电机制造有限公司 | Motor |
| CN107528437A (en) * | 2017-10-27 | 2017-12-29 | 山东理工大学 | A kind of composite electromagnetic motor used for electric vehicle |
| CN112713683A (en) * | 2020-12-11 | 2021-04-27 | 珠海格力电器股份有限公司 | Composite magnetic field permanent magnet rotor, manufacturing method thereof, motor rotor and motor |
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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: 20150729 Termination date: 20160425 |