CN209767266U - High-slot-filling-rate concentrated winding brushless motor stator - Google Patents
High-slot-filling-rate concentrated winding brushless motor stator Download PDFInfo
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- CN209767266U CN209767266U CN201920206269.3U CN201920206269U CN209767266U CN 209767266 U CN209767266 U CN 209767266U CN 201920206269 U CN201920206269 U CN 201920206269U CN 209767266 U CN209767266 U CN 209767266U
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Abstract
The utility model aims to disclose a high groove filling factor concentrated winding brushless motor stator, which comprises a yoke part iron core and a plurality of tooth part iron cores, wherein the tooth part iron cores are distributed at the inner side of the yoke part iron core along the circumference, the outer sides of the tooth part iron cores are provided with insulating material layers, and the adjacent insulating material layers of the tooth part iron cores are respectively and alternately provided with a first coil or a second coil; compared with the prior art, first coil or second coil direct mount are on tooth portion iron core and along circumference distribution in turn inboard at yoke portion iron core, and make full use of inslot effective area has solved the clearance problem between two adjacent windings to winding offline or installation requirement, has effectively improved the groove fullness rate of motor, has created the condition, realizes for the improvement of motor power density or efficiency the utility model aims at.
Description
Technical Field
The utility model relates to a special lifting device, in particular to winding brushless motor stator is concentrated to high groove fullness rate.
Background
The existing brushless motor with concentrated windings (see fig. 1) has the advantages of short winding end, simple winding process and the like, but because of the requirement of the winding process, enough gaps need to be reserved between three-phase windings of the motor to complete the winding or installation of the coil.
For larger power brushless motors, this gap will limit the increase in motor power density.
Therefore, there is a particular need for a high slot fill ratio concentrated winding brushless motor stator that solves the above-mentioned problems of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a winding brushless motor stator is concentrated to high groove fullness rate, to prior art's not enough, effectively solved the clearance problem between two adjacent windings to winding offline or installation requirement, effectively improved the groove fullness rate of motor, created the condition for the improvement of motor power density or efficiency.
The utility model provides a technical problem can adopt following technical scheme to realize:
The utility model provides a high groove filling factor concentrated winding brushless motor stator, its characterized in that, it includes yoke portion iron core and a plurality of tooth portion iron core, tooth portion iron core distributes along the circumference yoke portion iron core is inboard, tooth portion iron core's the outside is provided with insulating material layer, and is adjacent install first coil or second coil respectively in turn on tooth portion iron core's the insulating material layer.
In an embodiment of the present invention, the first coil is directly wound with a flat copper wire conductor or directly wound with a round copper wire.
In an embodiment of the present invention, the second coil is directly wound with a flat copper wire conductor or directly wound with a round copper wire.
In an embodiment of the present invention, the first coil and the second coil are coils of concentrated winding and have the same number of turns, the number of layers of the first coil and the second coil along the outward layers of the tooth core is different, and after the first coil and the second coil are alternately distributed along the circumference, the effect of fully utilizing the effective area in the groove is achieved.
In an embodiment of the present invention, the inner side of the yoke core is distributed with a plurality of inverted trapezoidal grooves, one section of the tooth core is provided with a trapezoidal protrusion matched with the inverted trapezoidal groove of the yoke core in size, and the yoke core and the trapezoidal matching oblique edge of the tooth core are matching contact surfaces.
In an embodiment of the present invention, the elastic pin is installed on the yoke iron core and the tooth iron core, and the elastic force of the elastic pin generates a pretightening force between each tooth iron core and the yoke iron core, thereby ensuring that all the tooth iron cores are firmly installed on the yoke iron core.
The utility model discloses a high full rate of groove concentrated winding brushless motor stator, compared with prior art, first coil or second coil direct mount are on tooth portion iron core and distribute in turn at yoke portion iron core inboard along the circumference, and make full use of inslot effective area has solved the clearance problem between two adjacent windings to winding downline or installation requirement, has effectively improved the full rate of groove of motor, has created the condition for the improvement of motor power density or efficiency, realizes the utility model aims at.
The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.
Drawings
Fig. 1 is a schematic structural diagram of a conventional brushless motor stator;
Fig. 2 is a schematic structural diagram of the high slot filling rate concentrated winding brushless motor stator according to the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Examples
As shown in fig. 2, the high slot filling factor concentrated winding brushless motor stator of the present invention includes a yoke core 10 and a plurality of tooth cores 20, the tooth cores 20 are circumferentially distributed on the inner side of the yoke core 10, the outer side of the tooth cores 20 is provided with an insulating material layer 50, and the insulating material layer 50 of the adjacent tooth cores 20 is alternately provided with a first coil 30 or a second coil 40.
in the present embodiment, the first coil 30 is directly wound with a flat copper wire conductor or directly wound with a round copper wire; the second coil 40 is directly wound with a flat copper wire conductor or a round copper wire.
In this embodiment, the first coil 30 and the second coil 40 are concentratedly wound coils and have the same number of turns, the number of the coil layers of the first coil 30 and the second coil 40 along each outward layer of the tooth core 20 is different, and the first coil 30 and the second coil 40 are alternately distributed along the circumference, so that the effect of fully utilizing the effective area in the slot is achieved.
In this embodiment, a plurality of inverted trapezoidal grooves are distributed on the inner side of the yoke core 10, a trapezoidal protrusion matched with the inverted trapezoidal groove of the yoke core 10 in size is provided at one section of the tooth core 20, and the trapezoidal matching oblique side of the yoke core 10 and the tooth core 20 is a matching contact surface.
In this embodiment, the elastic pins 60 are installed on the yoke cores 10 and the tooth cores 20, and the elastic force of the elastic pins 60 generates a pre-tightening force between each tooth core 20 and the yoke core 10, thereby ensuring that all the tooth cores 20 are firmly installed on the yoke core 10.
the utility model discloses a when high groove fullness concentrated winding brushless motor stator installs, insulating material layer 50 is installed earlier on tooth portion iron core 20, then directly winds first coil 30 or second coil 40 on tooth portion iron core 20 that has insulating material layer 50, and with the frock will install that wire-wound tooth portion iron core 20 is along the supplementary fixed back of circumference together from axial directly installed in yoke portion iron core 10.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high groove filling factor concentrated winding brushless motor stator, its characterized in that, it includes yoke portion iron core and a plurality of tooth portion iron core, tooth portion iron core distributes along the circumference yoke portion iron core is inboard, tooth portion iron core's the outside is provided with insulating material layer, and is adjacent install first coil or second coil respectively in turn on tooth portion iron core's the insulating material layer.
2. The high slot fill ratio concentrated winding brushless motor stator of claim 1, wherein the first coil is wound directly with flat copper wire conductors or directly with round copper wires.
3. The high slot fill ratio concentrated winding brushless motor stator of claim 1, wherein the second coil is wound directly with flat copper wire conductors or directly with round copper wires.
4. The high slot fill factor concentrated winding brushless motor stator of claim 1, wherein the first coil and the second coil are concentrated winding coils and have equal number of turns, and the number of layers of the first coil and the second coil along each outward layer of the tooth core is different.
5. The high slot fill ratio concentrated winding brushless motor stator of claim 1, wherein a plurality of inverted trapezoidal grooves are distributed on the inner side of the yoke core, a section of the tooth core is provided with a trapezoidal protrusion matched with the inverted trapezoidal grooves of the yoke core in size, and the trapezoidal matching oblique edges of the yoke core and the tooth core are matching contact surfaces.
6. The high slot fill ratio concentrated winding brushless motor stator of claim 1, wherein elastic pins are installed on the yoke core and the tooth core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206269.3U CN209767266U (en) | 2019-02-18 | 2019-02-18 | High-slot-filling-rate concentrated winding brushless motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206269.3U CN209767266U (en) | 2019-02-18 | 2019-02-18 | High-slot-filling-rate concentrated winding brushless motor stator |
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| Publication Number | Publication Date |
|---|---|
| CN209767266U true CN209767266U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920206269.3U Active CN209767266U (en) | 2019-02-18 | 2019-02-18 | High-slot-filling-rate concentrated winding brushless motor stator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818444A (en) * | 2019-02-18 | 2019-05-28 | 浙江龙芯电驱动科技有限公司 | A kind of high copper factor concentratred winding brushless motor stator |
-
2019
- 2019-02-18 CN CN201920206269.3U patent/CN209767266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818444A (en) * | 2019-02-18 | 2019-05-28 | 浙江龙芯电驱动科技有限公司 | A kind of high copper factor concentratred winding brushless motor stator |
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