CN209896884U - Sectional type permanent magnet synchronous motor rotor - Google Patents
Sectional type permanent magnet synchronous motor rotor Download PDFInfo
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- CN209896884U CN209896884U CN201920415463.2U CN201920415463U CN209896884U CN 209896884 U CN209896884 U CN 209896884U CN 201920415463 U CN201920415463 U CN 201920415463U CN 209896884 U CN209896884 U CN 209896884U
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Abstract
The utility model discloses a sectional permanent magnet synchronous motor rotor, which comprises a rotating shaft, a sectional rotor iron core, a rotor pressing plate and a rotor pressing sleeve; the rotor comprises a plurality of segmented rotor cores, a rotor pressing plate and a rotor pressing sleeve, wherein the segmented rotor cores are arranged and combined on a rotating shaft in a certain arrangement mode, the two ends of each segmented rotor core tightly press the segmented rotor cores through the rotor pressing plate, and the rotor pressing sleeve is arranged on the rotor pressing plate on one side. The utility model discloses simple structure, with low costs, easily production adopt the plastics packing to reduce the quantity that the magnet steel glued in the production process, effectually avoided the magnet steel to glue the unbalance amount that not fill full production, guaranteed the effective fixed of magnet steel, avoid the uncontrollable of motor performance.
Description
Technical Field
The utility model relates to the field of electric machines, concretely relates to sectional type PMSM rotor.
Background
The existing structure of the permanent magnet synchronous motor rotor generally adopts a structure that a permanent magnet is arranged on an integral rotor iron core, and magnetic steel glue is added between a gap between the permanent magnet and the iron core to fix magnetic steel; along with the improvement of the rotating speed of the motor and the improvement of the power density, more and more permanent magnet synchronous motors adopt a rotor oblique pole mode to optimize the motor tooth harmonic wave and the cogging torque, so that only a sectional type permanent magnet synchronous motor rotor structure can be adopted, but the process for fixing the rotor by the sectional type rotor and the magnetic steel adhesive is very complicated and is not fully filled, the unbalance of the rotor is increased, the rotor dynamic balance efficiency is reduced, the magnetic steel fixing cannot be guaranteed, and the performance controllability of the motor is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sectional type PMSM rotor of simple structure, with low costs, easily production.
The utility model adopts the technical proposal that: a sectional permanent magnet synchronous motor rotor comprises a rotating shaft, a sectional rotor iron core, a rotor pressing plate and a rotor pressing sleeve; the rotor comprises a plurality of segmented rotor cores, a rotor pressing plate and a rotor pressing sleeve, wherein the segmented rotor cores are arranged and combined on a rotating shaft in a certain arrangement mode, the two ends of each segmented rotor core tightly press the segmented rotor cores through the rotor pressing plate, and the rotor pressing sleeve is arranged on the rotor pressing plate on one side.
Furthermore, the segmented rotor core consists of a rotor core, rotor magnetic steel and a plastic filling piece; the rotor magnetic steel is V-shaped and annularly distributed at the outer edge of the rotor iron core; the plastic filling parts are filled in the middle and two ends of the rotor magnetic steel.
Furthermore, the rotor core is formed by laminating the rotor punching sheets.
Furthermore, a process installation positioning boss and a positioning notch are arranged on the rotor punching sheet; the positioning bosses are arranged on the side surfaces of the two ends of the rotor magnetic steel; the positioning notch is arranged below the middle part of the rotor magnetic steel.
Furthermore, the plastic filling piece is provided with an installation positioning feature matched with the rotor punching sheet.
Furthermore, a certain gap is reserved between the plastic filling piece and the rotor punching sheet and between the plastic filling piece and the rotor magnetic steel.
Further, the axial dimension of the plastic filling piece is smaller than the axial length of the rotor core.
The utility model has the advantages that: the utility model can produce the segmented rotor core independently in production, and is easy to operate and produce; the plastic filling piece is adopted in the production process, so that the using amount of the magnetic steel glue can be reduced, the unbalance caused by insufficient filling of the magnetic steel glue is effectively avoided, the effective fixation of the magnetic steel is ensured, and the uncontrollable performance of the motor is avoided.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a segmented core structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a plastic filling member according to an embodiment of the present invention;
fig. 4 is a schematic view of a rotor sheet according to an embodiment of the present invention;
FIG. 5 is a partial enlarged view of the rotor sheet of the present invention;
in the figure: the rotor comprises a rotor core, a rotating shaft 1, a segmented rotor core 2, a rotor pressing plate 3, a rotor pressing sleeve 4, a rotor core 5, rotor magnetic steel 6, magnetic steel glue 7, a first plastic filling piece 8-1, a second plastic filling piece 8-2, a rotor punching piece 9, a positioning boss 10 and a positioning notch 11.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the scope of the present invention is not limited to the following description.
As shown in fig. 1, a segmented permanent magnet synchronous motor rotor is composed of a rotating shaft 1, a segmented rotor core 2, a rotor pressing plate 3 and a rotor pressing sleeve 4. Wherein rotor pressing plate 3 installs both ends about pivot 1, and segmentation rotor core 3 is installed on pivot 1 according to certain permutation and combination, is located rotor pressing plate 3's centre, and rotor pressure cover 4 is installed on the rotor pressing plate 3 of one side, prevents segmentation rotor core 3 axial displacement.
As shown in fig. 2, the segmented rotor core 2 is composed of a rotor core 5, rotor magnetic steels 6, magnetic steel glue 7 and plastic filling pieces 8; the rotor magnetic steel 6 is distributed at the outer edge of the rotor iron core 5 in a V-shaped annular shape, and the V-shaped opening of the rotor magnetic steel 6 faces outwards. The rotor magnetic steel 6 is arranged in a magnetic steel groove of the rotor iron core 5, magnetic steel glue 7 is coated in the magnetic steel groove, the joints of the two ends and the middle part of the rotor magnetic steel 6 are filled with a first plastic filling part 8-1 and a second plastic filling part 8-2, and the axial size of the plastic filling parts is smaller than the axial length of the rotor iron core 5, as shown in fig. 3.
As shown in fig. 4 and 5, the rotor core 5 is formed by laminating rotor laminations 9, and the rotor laminations 9 are provided with positioning bosses 10 and positioning notches 11, wherein the positioning bosses 10 are arranged on the side faces of two ends of the rotor magnetic steel 6; and the positioning notch 11 is arranged below the middle part of the rotor magnetic steel 6. The first plastic filling piece 8-1 and the second plastic filling piece 8-2 are provided with positioning features matched with the rotor punching sheet 9. Certain gaps are reserved between the first plastic filling part 8-1 and the second plastic filling part 8-2 and the rotor punching sheet 9 and the rotor magnetic steel 6, and the gap distance is less than or equal to 3 mm.
The sectional rotor core 2 is installed according to the following procedures: firstly, coating magnetic steel glue 7 in a magnetic steel groove of a rotor core 5, then installing a rotor magnetic steel 6 and a plastic filling piece 8 in a corresponding groove, removing redundant magnetic steel glue, heating and curing, and then assembling the segmented rotor.
Claims (7)
1. The utility model provides a sectional type PMSM rotor which characterized in that: the rotor comprises a rotating shaft, a segmented rotor iron core, a rotor pressing plate and a rotor pressing sleeve; the rotor comprises a plurality of segmented rotor cores, rotor pressing plates and rotor pressing sleeves, wherein the segmented rotor cores are arranged on a rotating shaft, the two ends of each segmented rotor core are tightly pressed through the rotor pressing plates, and the rotor pressing sleeves are arranged on the rotor pressing plates on one sides.
2. The segmented permanent magnet synchronous motor rotor according to claim 1, characterized in that: the segmented rotor core consists of a rotor core, rotor magnetic steel and a plastic filling piece; the rotor magnetic steel is V-shaped and annularly distributed at the outer edge of the rotor iron core; the plastic filling parts are filled in the middle and two ends of the rotor magnetic steel.
3. The segmented permanent magnet synchronous motor rotor according to claim 1, characterized in that: the rotor core is formed by laminating rotor punching sheets.
4. The segmented PMSM rotor of claim 3, wherein: the rotor punching sheet is provided with a process installation positioning boss and a positioning notch; the positioning bosses are arranged on the side surfaces of the two ends of the rotor magnetic steel; the positioning notch is arranged below the middle part of the rotor magnetic steel.
5. The segmented PMSM rotor of claim 2, wherein: the plastic filling piece is provided with an installation positioning feature matched with the rotor punching sheet.
6. The segmented PMSM rotor of claim 2, wherein: and a certain gap is reserved between the plastic filling piece and the rotor punching sheet and between the plastic filling piece and the rotor magnetic steel.
7. The segmented PMSM rotor of claim 2, wherein: the axial dimension of the plastic filling piece is smaller than the axial length of the rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415463.2U CN209896884U (en) | 2019-03-29 | 2019-03-29 | Sectional type permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415463.2U CN209896884U (en) | 2019-03-29 | 2019-03-29 | Sectional type permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209896884U true CN209896884U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920415463.2U Active CN209896884U (en) | 2019-03-29 | 2019-03-29 | Sectional type permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
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| CN (1) | CN209896884U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404309A (en) * | 2020-03-25 | 2020-07-10 | 宁波依诺汽车电子有限公司 | Miniature new energy automobile pump permanent magnet direct current motor |
| CN112039239A (en) * | 2020-09-07 | 2020-12-04 | 珠海格力电器股份有限公司 | Rotor pressing plate for permanent magnet synchronous motor and permanent magnet synchronous motor |
| CN113691043A (en) * | 2020-05-19 | 2021-11-23 | 中车株洲电力机车研究所有限公司 | Permanent magnet motor rotor structure suitable for automatic manufacturing, manufacturing method and permanent magnet motor |
| CN116404777A (en) * | 2023-03-01 | 2023-07-07 | 天蔚蓝电驱动科技(江苏)有限公司 | Rotor without main magnetic bridge and manufacturing method of rotor |
-
2019
- 2019-03-29 CN CN201920415463.2U patent/CN209896884U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404309A (en) * | 2020-03-25 | 2020-07-10 | 宁波依诺汽车电子有限公司 | Miniature new energy automobile pump permanent magnet direct current motor |
| CN111404309B (en) * | 2020-03-25 | 2022-08-16 | 杨建才 | Miniature new energy automobile pump permanent magnet direct current motor |
| CN113691043A (en) * | 2020-05-19 | 2021-11-23 | 中车株洲电力机车研究所有限公司 | Permanent magnet motor rotor structure suitable for automatic manufacturing, manufacturing method and permanent magnet motor |
| CN112039239A (en) * | 2020-09-07 | 2020-12-04 | 珠海格力电器股份有限公司 | Rotor pressing plate for permanent magnet synchronous motor and permanent magnet synchronous motor |
| CN116404777A (en) * | 2023-03-01 | 2023-07-07 | 天蔚蓝电驱动科技(江苏)有限公司 | Rotor without main magnetic bridge and manufacturing method of rotor |
| CN116404777B (en) * | 2023-03-01 | 2024-03-05 | 天蔚蓝电驱动科技(江苏)有限公司 | Rotor without main magnetic bridge and manufacturing method of rotor |
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