CN210246573U - Double-stator motor - Google Patents
Double-stator motor Download PDFInfo
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- CN210246573U CN210246573U CN201921615032.7U CN201921615032U CN210246573U CN 210246573 U CN210246573 U CN 210246573U CN 201921615032 U CN201921615032 U CN 201921615032U CN 210246573 U CN210246573 U CN 210246573U
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- yoke
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Abstract
The utility model provides a double-stator motor, which comprises an inner stator, an outer stator and a rotor; the rotor is sleeved at the clearance between the outer surface of the inner stator and the inner surface of the outer stator with a clearance; the outer stator comprises an outer stator magnetic yoke, outer stator teeth and an outer stator winding; the inner stator comprises an inner stator magnet yoke, inner stator teeth and an inner stator winding; the inner stator yoke is integrally connected with the outer stator yoke to form a stator yoke which can support the inner stator teeth, the inner stator winding, the outer stator teeth and the outer stator winding. The utility model discloses save the positioner of inner stator fixing base and inside and outside stator, not only simplified motor structure, it is more convenient to make the assembly of two stator motors, has increaseed the cavity of inner stator hole moreover and has walked the line area, makes things convenient for the cavity to walk the line, has still increased the heat radiating area of inner stator in addition.
Description
Technical Field
The utility model belongs to the technical field of the motor, especially, relate to a double stator motor.
Background
In the traditional double-stator motor, the inner stator needs to be supported and fixed by a fixed seat, so that the hollow aperture of an inner hole is reduced, and wiring is difficult; the inner stator and the outer stator are completely independent, the installation needs accurate positioning, and the assembly is complex; the fixed seat is inserted into the inner hole of the inner stator and is connected with the shell, so that the hollow wiring area in the inner hole of the inner stator is reduced, wiring is difficult, the contact area of the inner stator and the fixed seat is small, and heat dissipation is difficult.
SUMMERY OF THE UTILITY MODEL
To the technical current situation of above-mentioned two stator motors, the utility model provides a two stator motors, its simple structure is favorable to the heat dissipation of inner stator winding and inner stator cavity to walk the line.
The utility model provides a technical scheme is: a double-stator motor comprises an inner stator, an outer stator and a rotor; the rotor is sleeved at the gap between the outer surface of the inner stator and the inner surface of the outer stator, and a gap exists between the rotor and the outer surface of the inner stator and between the rotor and the inner surface of the outer stator;
the outer stator comprises an outer stator iron core and an outer stator winding, the outer stator iron core comprises an outer stator magnetic yoke and a plurality of outer stator teeth, and the outer stator winding is wound on each outer stator tooth;
the inner stator comprises an inner stator iron core and an inner stator winding, the inner stator iron core comprises an inner stator magnetic yoke and a plurality of inner stator teeth, and the inner stator winding is wound on each inner stator tooth;
the method is characterized in that: the inner stator yoke is integrally connected with the outer stator yoke to form a stator yoke which can support the inner stator teeth, the inner stator winding, the outer stator teeth and the outer stator winding.
Stator yoke material is not limited, considers that the technology difficulty is added in silicon steel sheet processing, as preferred, the utility model discloses well stator yoke adopts the suppression of iron-based Soft Magnetic Composite (SMC) magnetic to form.
In one implementation, the stator yoke is provided with a slot-like structure into which each outer stator tooth is inserted and a slot-like structure into which each inner stator tooth is inserted.
Preferably, the stator magnetic yoke is provided with a hole-shaped structure, and the leading-out ends of the outer stator winding and the inner stator winding are welded on the circuit board through the hole-shaped structure.
Preferably, the corresponding phase sequence of the outer stator winding and the inner stator winding in the radial direction is the same.
The connection mode of the inner stator winding and the outer stator winding is not limited, the inner stator winding and the outer stator winding can be connected in series to increase the motor output and can also independently supply power, the outer stator mainly provides the motor output, and the inner stator provides a damping effect.
The rotor is a single-side bearing support structure or a double-side bearing support structure.
In a traditional double-stator motor, a rotor is formed by pasting outer rotor magnetic steel and inner rotor magnetic steel on a yoke part of the rotor. The thickness of the rotor yoke is limited by magnetic saturation and a machining process and is large. The rotor is heavy, occupies a large volume, and limits the power density and the torque density of the motor. The utility model discloses in, as preferred, the annular structure that the rotor adopted the magnetic powder suppression to form magnetizes and forms NS multipolar magnetic ring in turn, because the rotor is directly done to the magnetic ring, has saved the rotor yoke, has alleviateed rotor weight, has saved the shared space of rotor.
Compared with the prior art, the utility model discloses the internal stator yoke in with two stator motors links as an organic wholely with outer stator yoke, the stator yoke of formation an organic whole form, can support interior stator tooth, the internal stator winding, outer stator tooth and outer stator winding, the positioner of internal stator fixing base and inside and outside stator has been saved, not only simplified motor structure, make two stator motor convenient assembling, and make two stator motors can do littleer, and the line area is walked to the cavity that has increaseed the internal stator, make things convenient for the cavity to walk the line, the heat radiating area of internal stator has still been increased in addition.
Drawings
Fig. 1 is an axial structural schematic diagram of a double-stator motor in an embodiment of the present invention.
Fig. 2 is a radial structure sectional view of a double-stator motor according to an embodiment of the present invention.
Fig. 3 is a schematic view of a stator yoke structure of a double-stator motor according to an embodiment of the present invention.
Fig. 4 is a side view of fig. 3.
Fig. 5 is an axial cross-sectional view of fig. 3.
Fig. 6 is a schematic view of a rotor magnetic pole of a double-stator motor according to an embodiment of the present invention.
The reference numerals in fig. 1 to 6 are: the motor comprises a rotating shaft 1, a rotor 2, an outer stator tooth iron core 3, an outer stator winding 4, an inner stator tooth iron core 5, an inner stator winding 6, a stator magnet yoke 7, a circuit board 8, a lead-out terminal 9, a groove-shaped structure for inserting outer stator teeth 7-1, a groove-shaped structure for inserting inner stator teeth 7-2, a hole-shaped structure for leading out wires of the outer stator winding 7-3 and a hole-shaped structure for leading out wires of the inner stator winding 7-4.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, which are intended to facilitate the understanding of the present invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the double-stator motor is an inner and outer stator integrated structure, and includes a rotating shaft 1, a rotor 2, outer stator teeth 3, an outer stator winding 4, inner stator teeth 5, an inner stator winding 6, a stator yoke 7, a circuit board 8, and a leading-out terminal 9.
As shown in fig. 3, the stator yoke 7 is an integrated structure, and includes an inner stator yoke and an outer stator yoke, which can support the inner stator teeth, the inner stator winding, the outer stator teeth, and the outer stator winding.
In this embodiment, the outer stator teeth 3 and the inner stator teeth 5 are both composed of 3m pieces of small iron core teeth, and m is an integer. The outer stator winding 4 is wound around each outer stator tooth 3, and the inner stator winding 6 is wound around each inner stator tooth 5.
In this embodiment, the corresponding phase sequences of the outer stator winding 4 and the inner stator winding 6 in the radial direction are the same. The inner stator winding is connected with the outer stator winding in series.
In the embodiment, the stator magnetic yoke is provided with a groove-shaped structure 7-1 for inserting each outer stator tooth and a groove-shaped structure 7-2 for inserting each inner stator tooth.
In the implementation, the stator magnet yoke is also provided with a hole-shaped structure 7-3 for the outer stator winding to be led out and a hole-shaped structure 7-4 for the inner stator winding to be led out. The leading-out end 9 of the outer stator winding penetrates through the hole-shaped structure 7-3 to be welded on the circuit board 8, and the leading-out end 9 of the inner stator winding penetrates through the hole-shaped structure 7-4 to be welded on the circuit board 8.
In this embodiment, the stator yoke is formed by pressing SMC magnetic powder.
In this embodiment, the rotor is a single-side bearing support structure. As shown in fig. 6, the rotor is formed by pressing magnetic powder and has a ring structure, and is magnetized to form a multi-pole magnetic ring with NS alternating.
The above-mentioned embodiment is to the technical solution of the present invention has been described in detail, it should be understood that the above is only the specific embodiment of the present invention, not used for limiting the present invention, any modification, supplement or similar mode replacement etc. that the principle scope of the present invention is in should be included in the protection scope of the present invention.
Claims (8)
1. A double-stator motor comprises an inner stator, an outer stator and a rotor;
the rotor is sleeved at the gap between the outer surface of the inner stator and the inner surface of the outer stator, and a gap exists between the rotor and the outer surface of the inner stator and between the rotor and the inner surface of the outer stator;
the outer stator comprises an outer stator iron core and an outer stator winding, the outer stator iron core comprises an outer stator magnetic yoke and a plurality of outer stator teeth, and the outer stator winding is wound on each outer stator tooth;
the inner stator comprises an inner stator iron core and an inner stator winding, the inner stator iron core comprises an inner stator magnetic yoke and a plurality of inner stator teeth, and the inner stator winding is wound on each inner stator tooth;
the method is characterized in that: the inner stator yoke is integrally connected with the outer stator yoke to form a stator yoke which can support the inner stator teeth, the inner stator winding, the outer stator teeth and the outer stator winding.
2. A double stator electric machine as claimed in claim 1, wherein: the stator magnetic yoke is provided with a groove-shaped structure for inserting each outer stator tooth and a groove-shaped structure for inserting each inner stator tooth.
3. A double stator electric machine as claimed in claim 1, wherein: the stator magnet yoke is provided with a hole-shaped structure, and leading-out ends of the outer stator winding and the inner stator winding penetrate through the hole-shaped structure to be welded on the circuit board.
4. A double stator electric machine as claimed in claim 1, wherein: the corresponding phase sequence of the outer stator winding and the inner stator winding in the radial direction is the same.
5. A double stator electric machine as claimed in claim 1, wherein: the inner stator winding is connected with the outer stator winding in series, or the inner stator winding and the outer stator winding are independently powered.
6. A double stator electric machine as claimed in any one of claims 1 to 5, wherein: the rotor is a single-side bearing support structure or a double-side bearing support structure.
7. A double stator electric machine as claimed in any one of claims 1 to 5, wherein: the rotor is formed by pressing magnetic powder and is magnetized to form an NS alternative annular structure.
8. A twin stator electric machine as defined in claim 7 wherein: the rotor is a single-side bearing support structure or a double-side bearing support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615032.7U CN210246573U (en) | 2019-09-26 | 2019-09-26 | Double-stator motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615032.7U CN210246573U (en) | 2019-09-26 | 2019-09-26 | Double-stator motor |
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| Publication Number | Publication Date |
|---|---|
| CN210246573U true CN210246573U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921615032.7U Active CN210246573U (en) | 2019-09-26 | 2019-09-26 | Double-stator motor |
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| CN (1) | CN210246573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601478A (en) * | 2019-09-26 | 2019-12-20 | 中国科学院宁波材料技术与工程研究所 | Double-stator motor |
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2019
- 2019-09-26 CN CN201921615032.7U patent/CN210246573U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601478A (en) * | 2019-09-26 | 2019-12-20 | 中国科学院宁波材料技术与工程研究所 | Double-stator motor |
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