CN102111047A - Low-rotating-speed high-torque permanent magnet synchronous motor - Google Patents
Low-rotating-speed high-torque permanent magnet synchronous motor Download PDFInfo
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- CN102111047A CN102111047A CN2009102646830A CN200910264683A CN102111047A CN 102111047 A CN102111047 A CN 102111047A CN 2009102646830 A CN2009102646830 A CN 2009102646830A CN 200910264683 A CN200910264683 A CN 200910264683A CN 102111047 A CN102111047 A CN 102111047A
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Abstract
The invention discloses a low-rotating-speed high-torque permanent magnet synchronous motor. A stator core is fixed and pressed on an inner ring of a motor shell, and consists of two stator end plates and a plurality of stator stampings which are clamped between the two stator end plates and formed by axially overlying, and the stator stampings are connected into a closed ring by using a plurality of silicon steel sheets; a rotor core consists of a plurality of rotor stampings which are formed by axially overlying, and the rotor stampings are connected into a closed ring by using a plurality of silicon steel sheets; the outer surface of the rotor core is provided with a plurality of concave positioning grooves; a plurality of magnetic steels are correspondingly embedded on the concave positioning grooves; a rotor support, the rotor core and the plurality of the magnetic steels are tightly pressed and fixed with one another; and two ends of a rotating shaft extend a motor end cover to form double-spindle-head output. The stator core adopts a multi-sheet connecting mode, so the problem that the motor diameter is limited by the maximum width of the silicon steel sheets is solved. The low-rotating-speed high-torque permanent magnet synchronous motor has high power density, high efficiency and power factor, and high starting torque and running torque, and is suitable for use on accession when the rotating speed is low and the torque range changes a lot.
Description
Technical field
The present invention relates to a kind of motor, especially a kind of slow-speed of revolution large torque moment permanent-magnet synchronous machine.
Background technology
Existing permagnetic synchronous motor mostly is that rotating speed is at 300-3000r/min, when being used in the occasion of the big torque of the slow-speed of revolution, need deceleration device, so just reduced the transmission efficiency of whole system, increased the power consumption of whole system, make the power consumption of whole system increase, increased its operating cost.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of slow-speed of revolution large torque moment permanent-magnet synchronous machine, deceleration device can be need not and the big torque rotation of the slow-speed of revolution can be realized, improved the transmission efficiency under the big torque occasion of the slow-speed of revolution, reduce the operating cost of whole system.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of slow-speed of revolution large torque moment permanent-magnet synchronous machine, comprise electric motor end cap, stationary part and rotor portion, the rotatable stationary part that places of described rotor portion, described stationary part comprises motor housing, stator core and coil, described coil is embedded in the wire casing of described stator core, and described motor housing both sides fixedly cover and state electric motor end cap to some extent; Described rotor portion comprises rotor field spider, rotating shaft, rotor core and some magnet steel, described rotor core is embedded on the groove of described rotor field spider outer surface, described rotating shaft press-fits in the centre bore of rotor field spider, described stator core fixedly press-fits on the inner ring of motor housing, this stator core is by two stator end plates and be clipped on the multi-disc stator punching that axially laminates moulding between this two stator end plate and form, described stator punching is connected into closed ring-like by the multi-disc silicon steel sheet, stator core adopts this kind multi-disc connected mode, solved the restricted problem that motor diameter is subjected to the silicon steel sheet Breadth Maximum; Described rotor core is made up of the multi-disc rotor punching that axially laminates moulding, described rotor punching is connected into closed ring-like by the multi-disc silicon steel sheet, the outer surface of described rotor core is provided with some spill location notchs, described some magnet steel correspondences are embedded on the spill location notch of described rotor core, press fixingly between described rotor field spider, rotor core and the some magnet steel, described rotating shaft two ends are stretched out described electric motor end cap and are formed twin shaft head output.
As a further improvement on the present invention, the structure that described stator core fixedly press-fits on the inner ring of motor housing is: described stationary part also comprises casing internal stop and two stator back-up rings, wherein a stator back-up ring fixedly press-fits in the motor housing of described stator core one side and described stator core one side of backstop all the time, described stator core opposite side is pressed successively and is provided with another stator back-up ring and casing internal stop, and described casing internal stop and motor housing are connected.
As a further improvement on the present invention, be provided with some holding screws, described holding screw is with the fixedly stitching of inner ring of described stator core and described motor housing.
As a further improvement on the present invention, pressing fixing structure between described rotor field spider, rotor core and the some magnet steel is: the axial both sides of described rotor field spider are respectively equipped with rotor silicon steel sheet pressing plate and some hold-down bolts, and described some hold-down bolts are fixed and clamped described rotor field spider, rotor core and some magnet steel between described two rotor silicon steel sheets.
As a further improvement on the present invention, the spill location notch of described rotor core is along the circumferential direction evenly spaced apart.
As a further improvement on the present invention, described magnet steel is the tile shape magnetic pole concentric with described rotor core, offer semicircle keyway on this axial both sides of tile shape magnetic pole rectangular surfaces, the cell wall position of the corresponding described semicircle keyway of the spill location notch of described rotor core forms the card key that protrudes, but described semicircle keyway is just stated the card key in the blocking residence, thereby magnet steel firmly is equipped in the spill location notch of rotor core, to improve the tensile strength of magnet steel, solved with the fixing illusive defective of magnet steel of adhesive methods such as glue.
As a further improvement on the present invention, described electric motor end cap is stretched out at described rotating shaft two ends and the structure that forms twin shaft head output is: the outside, the two ends movable sleeve of the corresponding described electric motor end cap of described rotating shaft is provided with bearing and bearing (ball) cover, this bearing (ball) cover electric motor end cap that is connected, described bearing is located in the bearing (ball) cover.
Motor of the present invention adopts the big width of major diameter, to solve the problem of the torque deficiency that causes owing to underexcitation.
The invention has the beneficial effects as follows: magnet steel is a concentric type tile shape magnetic pole, on the rectangular surfaces of concentric type tile shape magnetic pole both sides, have semicircle keyway, magnet steel firmly is equipped in the spill location notch of rotor core, improved the tensile strength of magnet steel, solved with the fixing illusive defective of magnet steel of adhesive methods such as glue; Stator core adopts the multi-disc ways of connecting, solved the restricted problem that motor diameter is subjected to the silicon steel sheet Breadth Maximum; Cooperate motor to adopt the big width scheme of major diameter also can solve because the problem of the torque deficiency that underexcitation causes, power density of the present invention is big, efficient is high and power factor (PF) is high, noise is low, operate steadily, speed adjusting performance is good, failure rate is low, operation expense is low, detent torque is big and the operation torque is big, and be particularly suitable under the slow-speed of revolution, torque range variation occasion greatly, using, broken through the problem of under the big torque occasion of the slow-speed of revolution, using multi-stage speed-reducing for a long time, reduce the energy consumption of middle transmission, improved the transmission efficiency of whole system.
Description of drawings
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 is the profile of Fig. 1;
Fig. 3 is the generalized section of stationary part of the present invention;
Fig. 4 is the schematic diagram of rotor portion of the present invention;
Fig. 5 is the structural representation of the described magnet steel of this patent;
Fig. 6 is the end view of Fig. 5;
The schematic diagram of Fig. 7 position rotating shaft of the present invention.
Embodiment
Embodiment: a kind of slow-speed of revolution large torque moment permanent-magnet synchronous machine, comprise electric motor end cap 4, stationary part 20 and rotor portion 30, the described rotor portion 30 rotatable stationary parts 20 that place, described stationary part 20 comprises motor housing 5, stator core 6 and coil 12, described coil 12 is embedded in the wire casing of described stator core 6, and described motor housing 5 both sides fixedly cover states electric motor end cap 4 to some extent; Described rotor portion 30 comprises rotor field spider 9, rotating shaft 1, rotor core 8 and some magnet steel 7, described rotor core 8 is embedded on the groove of described rotor field spider 9 outer surfaces, described rotating shaft press-fits in the centre bore of rotor field spider 9, described stator core 6 fixedly press-fits on the inner ring of motor housing 5, this stator core 6 is by two stator end plates 15 and be clipped on the multi-disc stator punching that axially laminates moulding between this two stator end plate and form, described stator punching is connected into closed ring-like by the multi-disc silicon steel sheet, stator core adopts this kind multi-disc connected mode, solved the restricted problem that motor diameter is subjected to the silicon steel sheet Breadth Maximum; Described rotor core 8 is made up of the multi-disc rotor punching that axially laminates moulding, described rotor punching is connected into closed ring-like by the multi-disc silicon steel sheet, the outer surface of described rotor core 8 is provided with some spill location notchs, described some magnet steel 7 correspondences are embedded on the spill location notch of described rotor core 8, press fixingly between described rotor field spider 9, rotor core 8 and the some magnet steel 7, described rotating shaft 1 two ends are stretched out described electric motor end cap 4 and are formed the output of twin shaft head.
The structure that described stator core 6 fixedly press-fits on the inner ring of motor housing 5 is: described stationary part 20 also comprises casing internal stop 13 and two stator back-up rings 16, wherein a stator back-up ring 16 fixedly press-fits in the motor housing 5 of described stator core 6 one sides and described stator core 6 one sides of backstop all the time, described stator core 6 opposite sides are pressed successively and are provided with another stator back-up ring 16 and casing internal stop 13, and described casing internal stop 13 is connected with motor housing 5.
Be provided with some holding screws 14, described holding screw 14 is with the inner ring fixedly stitching of described stator core 6 with described motor housing 5.
Pressing fixing structure between described rotor field spider 9, rotor core 8 and the some magnet steel 7 is: the axial both sides of described rotor field spider 9 are respectively equipped with rotor silicon steel sheet pressing plate 10 and some hold-down bolts 11, and described some hold-down bolts are fixed and clamped described rotor field spider 9, rotor core 8 and some magnet steel 7 between described two rotor silicon steel sheets.
The spill location notch of described rotor core 8 is along the circumferential direction evenly spaced apart.
Described magnet steel 7 is the tile shape magnetic pole concentric with described rotor core 8, offer semicircle keyway 13 on this axial both sides of tile shape magnetic pole rectangular surfaces, the cell wall position of the corresponding described semicircle keyway 13 of the spill location notch of described rotor core 8 forms the card key that protrudes, but the card key is stated in described semicircle keyway 13 proper blocking residences, thereby magnet steel 7 firmly is equipped in the spill location notch of rotor core 8, to improve the tensile strength of magnet steel, solved with the fixing illusive defective of magnet steel of adhesive methods such as glue.
Described electric motor end cap 4 is stretched out at described rotating shaft 1 two ends and the structure that forms the output of twin shaft head is: the outside, the two ends movable sleeve of described rotating shaft 1 corresponding described electric motor end cap 4 is provided with bearing 3 and bearing (ball) cover 2, this bearing (ball) cover 2 electric motor end cap 4 that is connected, described bearing 3 is located in the bearing (ball) cover 2.
Motor of the present invention adopts the big width of major diameter, to solve the problem of the torque deficiency that causes owing to underexcitation.
Patent installation process of the present invention is: at first rotating shaft 1 is pressed on the centre bore of rotor field spider 9, then that closed assembly is good rotor core 8 is mounted in the groove of rotor field spider 9 outer surfaces, magnet steel 7 with some formation concentric type tile shape magnetic poles is installed on the rotor core 8 along the spill location notch afterwards, and with rotor silicon steel sheet pressing plate 10 and hold-down bolt 11 it is compressed, to finish the assembling of rotor portion (Fig. 2).Press-fit a stator back-up ring 16 in motor housing 5, the stator core of then closed assembly being finished 6 press-fits on the motor housing 5, is pressed into stator back-up ring 16, casing internal stop 13 in the outside successively, and welds; Then coil 12 is embedded in the wire casing of stator core 6, after binding is finished, finish the assembling of stationary part (Fig. 3).Rotor portion 30 is packed in the stationary part 20, then electric motor end cap 4 is installed to the installation of finishing motor on the motor housing 5 at the bearing 3 of packing in the rotating shaft 1, bearing (ball) cover 2.
Claims (7)
1. slow-speed of revolution large torque moment permanent-magnet synchronous machine, comprise electric motor end cap (4), stationary part (20) and rotor portion (30), the rotatable stationary part (20) that places of described rotor portion (30), described stationary part (20) comprises motor housing (5), stator core (6) and coil (12), described coil (12) is embedded in the wire casing of described stator core (6), and described motor housing (5) both sides fixedly cover and state electric motor end cap (4) to some extent; Described rotor portion (30) comprises rotor field spider (9), rotating shaft (1), rotor core (8) and some magnet steel (7), described rotor core (8) is embedded on the groove of described rotor field spider (9) outer surface, described rotating shaft press-fits in the centre bore of rotor field spider (9), it is characterized in that: described stator core (6) fixedly press-fits on the inner ring of motor housing (5), this stator core (6) is by two stator end plates (15) and be clipped on the multi-disc stator punching that axially laminates moulding between this two stator end plate and form, and described stator punching is connected into closed ring-like by the multi-disc silicon steel sheet; Described rotor core (8) is made up of the multi-disc rotor punching that axially laminates moulding, described rotor punching is connected into closed ring-like by the multi-disc silicon steel sheet, the outer surface of described rotor core (8) is provided with some spill location notchs, described some magnet steel (7) correspondence is embedded on the spill location notch of described rotor core (8), press fixingly between described rotor field spider (9), rotor core (8) and the some magnet steel (7), described rotating shaft (1) two ends are stretched out described electric motor end cap (4) and are formed the output of twin shaft head.
2. slow-speed of revolution large torque moment permanent-magnet synchronous machine according to claim 1, it is characterized in that: the structure that described stator core (6) fixedly press-fits on the inner ring of motor housing (5) is: described stationary part (20) also comprises casing internal stop (13) and two stator back-up rings (16), wherein a stator back-up ring (16) fixedly press-fits in the motor housing (5) of described stator core (6) one sides and described stator core (6) one sides of backstop all the time, described stator core (6) opposite side is pressed successively and is provided with another stator back-up ring (16) and casing internal stop (13), and described casing internal stop (13) is connected with motor housing (5).
3. slow-speed of revolution large torque moment permanent-magnet synchronous machine according to claim 2 is characterized in that: be provided with some holding screws (14), described holding screw (14) is with the inner ring fixedly stitching of described stator core (6) with described motor housing (5).
4. slow-speed of revolution large torque moment permanent-magnet synchronous machine according to claim 1, it is characterized in that: pressing fixing structure between described rotor field spider (9), rotor core (8) and the some magnet steel (7) is: the axial both sides of described rotor field spider (9) are respectively equipped with rotor silicon steel sheet pressing plate (10) and some hold-down bolts (11), and described some hold-down bolts are fixed and clamped described rotor field spider (9), rotor core (8) and some magnet steel (7) between described two rotor silicon steel sheets.
5. according to claim 1 or 4 described slow-speed of revolution large torque moment permanent-magnet synchronous machines, it is characterized in that: the spill location notch of described rotor core (8) is along the circumferential direction evenly spaced apart.
6. according to claim 1 or 4 described slow-speed of revolution large torque moment permanent-magnet synchronous machines, it is characterized in that: described magnet steel (7) is the tile shape magnetic pole concentric with described rotor core (8), offer semicircle keyway (13) on this axial both sides of tile shape magnetic pole rectangular surfaces, the cell wall position of the corresponding described semicircle keyway of the spill location notch of described rotor core (8) (13) forms the card key that protrudes, described semicircle keyway (13) but just the blocking residence state the card key.
7. slow-speed of revolution large torque moment permanent-magnet synchronous machine according to claim 1, it is characterized in that: described electric motor end cap (4) is stretched out at described rotating shaft (1) two ends and the structure that forms the output of twin shaft head is: the outside, the two ends movable sleeve of the corresponding described electric motor end cap of described rotating shaft (1) (4) is provided with bearing (3) and bearing (ball) cover (2), this bearing (ball) cover (2) electric motor end cap (4) that is connected, described bearing (3) is located in the bearing (ball) cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102646830A CN102111047A (en) | 2009-12-23 | 2009-12-23 | Low-rotating-speed high-torque permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102646830A CN102111047A (en) | 2009-12-23 | 2009-12-23 | Low-rotating-speed high-torque permanent magnet synchronous motor |
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| Publication Number | Publication Date |
|---|---|
| CN102111047A true CN102111047A (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102646830A Pending CN102111047A (en) | 2009-12-23 | 2009-12-23 | Low-rotating-speed high-torque permanent magnet synchronous motor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001437A (en) * | 2011-09-19 | 2013-03-27 | 黄仲钦 | Compound permanent magnet synchronous motor |
| CN108448850A (en) * | 2018-04-17 | 2018-08-24 | 广州通达汽车电气股份有限公司 | Motor and automobile |
| CN109067072A (en) * | 2018-09-18 | 2018-12-21 | 浙江旺得福车业有限公司 | A kind of efficient large torque wheel motor |
| CN111740530A (en) * | 2020-07-08 | 2020-10-02 | 四川宜宾力源电机有限公司 | Water-cooled permanent magnet synchronous motor |
| CN114285224A (en) * | 2021-12-27 | 2022-04-05 | 重庆斯科彼欧科技有限公司 | a hand generator |
| CN114362464A (en) * | 2021-12-30 | 2022-04-15 | 北京理工大学 | Coaxial integrated motor |
-
2009
- 2009-12-23 CN CN2009102646830A patent/CN102111047A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001437A (en) * | 2011-09-19 | 2013-03-27 | 黄仲钦 | Compound permanent magnet synchronous motor |
| CN103001437B (en) * | 2011-09-19 | 2015-01-28 | 黄仲钦 | Compound permanent magnet synchronous motor |
| CN108448850A (en) * | 2018-04-17 | 2018-08-24 | 广州通达汽车电气股份有限公司 | Motor and automobile |
| CN108448850B (en) * | 2018-04-17 | 2024-04-16 | 广州通达汽车电气股份有限公司 | Motor and automobile |
| CN109067072A (en) * | 2018-09-18 | 2018-12-21 | 浙江旺得福车业有限公司 | A kind of efficient large torque wheel motor |
| CN109067072B (en) * | 2018-09-18 | 2023-10-20 | 浙江旺得福车业有限公司 | High-efficiency large-torque wheel motor |
| CN111740530A (en) * | 2020-07-08 | 2020-10-02 | 四川宜宾力源电机有限公司 | Water-cooled permanent magnet synchronous motor |
| CN114285224A (en) * | 2021-12-27 | 2022-04-05 | 重庆斯科彼欧科技有限公司 | a hand generator |
| CN114362464A (en) * | 2021-12-30 | 2022-04-15 | 北京理工大学 | Coaxial integrated motor |
| CN114362464B (en) * | 2021-12-30 | 2023-08-15 | 北京理工大学 | A coaxial integrated motor |
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