CN203326754U - Rotor structure and asynchronous start permanent magnetic synchronous motor having rotor structure - Google Patents
Rotor structure and asynchronous start permanent magnetic synchronous motor having rotor structure Download PDFInfo
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- CN203326754U CN203326754U CN2013203739641U CN201320373964U CN203326754U CN 203326754 U CN203326754 U CN 203326754U CN 2013203739641 U CN2013203739641 U CN 2013203739641U CN 201320373964 U CN201320373964 U CN 201320373964U CN 203326754 U CN203326754 U CN 203326754U
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Abstract
The utility model discloses a rotor structure and an asynchronous start permanent magnetic synchronous motor having the rotor structure. The rotor structure comprises a main core, a shaft hole arranged at a central area of the main core, multiple conductor grooves arranged along an outer circumference area of the main core and multiple magnetic steel grooves which are arranged at areas among the conductor grooves and the shaft hole and are close to the conductor grooves, wherein two ends of each magnetic steel groove symmetrically extends along a direction of the shaft hole to form magnetic isolation grooves. The asynchronous start permanent magnetic synchronous motor having the rotor structure realizes miniaturization of a motor, reduces integral volume of the motor, reduces weight, saves cost and reduces machine room dimensions, and thereby the asynchronous start permanent magnetic synchronous motor having the rotor structure has advantages of compact structure, high reliability, convenient manufacturing, high efficiency, high material utilization rate, great torque, long service life and low manufacturing cost.
Description
Technical field
The present invention relates to a kind of efficient asynchronous starting permanent magnet synchronous motor for elevator traction machine, be specially the rotor structure that this synchronous motor has.
Background technology
What traditional elevator traction machine motor adopted is the external rotor variable frequency adjustable-speed motor, because the particularity of its structure makes the whole volume of motor large, weight is higher, and overload capacity is low, cost savings are limited, in installation process, needs larger rotary space to make the machine room size also become large thereupon.
Summary of the invention
The object of the present invention is to provide for the rotor structure of synchronous motor and the asynchronous starting permanent magnet synchronous motor with this rotor structure, make motor there is the self-starting ability, and speed governing good stability, efficiency is high, overload capacity strengthens, and the motor overall weight is compared the external rotor variable frequency adjustable-speed motor with volume much smaller.
Above-mentioned purpose is achieved through the following technical solutions:
Rotor structure, it is characterized in that: include main core, be formed with the axis hole that is arranged on main core central area, a plurality of conductor slots along main core outer perimeters region division, be arranged in a plurality of magnet steel grooves that are close to conductor slot in zone between conductor slot and axis hole, the two ends of described magnet steel groove are extended magnet isolation tank are arranged towards axis hole direction symmetry.
Described magnet isolation tank and magnet steel groove are interconnected, the formed extension of this magnet isolation tank forms isolation to the magnetic field of each self-forming between adjacent magnet steel groove, can turn around from stator in each magnetic field after walking around magnet isolation tank, take full advantage of the magnetic field acting of magnet steel, improved the efficiency of motor.
Described conductor slot number is N*P, and N is natural number, and P is electromotor series, and magnet steel groove number is P.
Described conductor slot is open outward opening grooved.
By cast aluminium, rotor dispersing sheet is cast as to cast-aluminum rotor after the rotor dispersing sheet overlapping that described rotor is good by punching press is good.
Its magnet steel groove " N " utmost point of described rotor is that the magnet steel of unifying polarity by polylith is in series, and adjacent magnet steel groove " S " utmost point is also that the magnet steel of unifying polarity by polylith is in series, and after whole rotor magnetic steel installs, " N " " S " is the integer decile.
Magnet steel in described magnet steel groove is arranged in groove by embedded mode, less than every magnetic space-filling casting glue, can avoid magnet steel directly to contact with air, avoid as far as possible oxidation and the vibrations of magnet steel, can extend the useful life of magnet steel and the useful life of motor.
A kind of asynchronous starting permanent magnet synchronous motor, include main shaft, front end housing, bearing, junction box assembly, rotor, stator core, support, rear end cap and encoder, rotor is arranged on main shaft by bearing, rotor and stator core pass through front end housing, rear end cap, support and junction box assembly link together and are bolted, having refilled encoder on main shaft fixes by bolt and rear end cap, it is characterized in that: described rotor, include main core, be formed with the axis hole that is arranged on main core central area, a plurality of conductor slots along main core outer perimeters region division, be arranged in a plurality of magnet steel grooves that are close to conductor slot in zone between conductor slot and axis hole, the two ends of described magnet steel groove are extended magnet isolation tank are arranged towards axis hole direction symmetry.
Adopt the asynchronous starting permanent magnet synchronous motor of said structure, there is following advantage:
1, loss is little, efficiency is high, power is high;
2, volume is little, lightweight, stock utilization is high, simple in structure, can extend motor useful life, and has easily manufactured characteristics;
3, the electromotor overload ability is strong, and anti-stall ability is strong.
4, the shape and size of motor can be versatile and flexible.
The accompanying drawing explanation
Fig. 1 is rotor structure sectional drawing schematic diagram of the present invention;
Fig. 2 is A indication position enlarged drawing in Fig. 1;
Fig. 3 is a kind of example electric motor structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, 2, rotor structure, include main core 1, be formed with the axis hole 2 that is arranged on main core 1 central area, a plurality of conductor slots 3 along main core 1 outer perimeters region division, be arranged in a plurality of magnet steel grooves 4 that are close to conductor slot 3 in zone between conductor slot 3 and axis hole 2, the two ends of described magnet steel groove 4 are extended magnet isolation tank 5 are arranged towards axis hole 2 direction symmetries, magnet isolation tank 5 is interconnected with magnet steel groove 4, and this formed extension of magnet isolation tank 5 forms isolation to the magnetic field of each self-forming between adjacent magnet steel groove 4.The leakage field arranged rotor of magnet isolation tank 5 has very big improvement.Were it not for magnet isolation tank 5, the magnetic field that magnet steel forms so is exactly the formation loop, two ends oneself of magnet steel groove, with stator, does not interact and loses, magnet isolation tank 5 has been arranged, turning around from stator in magnetic field after walking around magnet isolation tank 5, takes full advantage of the magnetic field acting of magnet steel, improved the efficiency of motor.
As shown in Figure 1, conductor slot 3 numbers are N*P, and N is natural number, and P is electromotor series, and the number of magnet steel groove 4 is P.The grooved of conductor slot 3 is open outward opening, the existence of conductor slot 3 is equivalent to a starting winding, make motor there is the self-starting ability, and improve the electromotor overload ability, when electromotor overload is about to out-of-step operation to a certain extent, the mouse cage winding that conductor slot 3 forms can be withdrawn into rotor the regulation rotating speed, prevents the motor out-of-step operation.
As shown in Figure 1, 2, its magnet steel groove " N " utmost point of rotor is that the magnet steel of unifying polarity by polylith is overrided to form, and adjacent magnet steel groove " S " utmost point is also that the magnet steel of unifying polarity by polylith is overrided to form, and after whole rotor magnetic steel installs, " N " " S " is the integer decile.Magnet steel in magnet steel groove 4 are arranged in groove by embedded mode, less than every magnetic space-filling casting glue, can avoid magnet steel directly to contact with air, avoid as far as possible the oxidation of magnet steel, can extend the useful life of magnet steel and the useful life of motor.
Rotor in the present invention is that rotor dispersing sheet overlapping that punching press is good is cast as cast-aluminum rotor by cast aluminium by rotor dispersing sheet after good.Because magnet steel is embedded in rotor inner structure compactness, the high occasion that goes for higher rotation speed of rotor strength.The punching stock utilization of said structure can significantly promote, and can reduce the volume and weight of motor for the equal-wattage motor, has saved material, meets the requirement that national energy-saving reduces discharging, the stable row and the fail safe that have also improved motor speed adjusting simultaneously.
As shown in Figure 3, for a kind of asynchronous starting permanent magnet synchronous motor for elevator traction machine, this synchronous motor has above-mentioned rotor structure, include main shaft 11, front end housing 12, deep groove ball bearing 13, junction box assembly 14, rotor 15, stator core 16, support 17, rear end cap 18, self-aligning bearing 19 and encoder 20, rotor 15 is by bearing 13, 19 are arranged on main shaft 11, rotor 15 and stator core 17 are by front end housing 12, rear end cap 18, support 17 and junction box assembly 14 link together and are bolted, refilled encoder 20 on main shaft 11 fixing by bolt and rear end cap 18.
The asynchronous starting permanent magnet synchronous motor that possesses rotor structure of the present invention, realized motor miniaturization, make the overall volume of motor dwindle, weight saving, saved cost, the machine room size reduces and dwindles, and therefore has compact conformation, reliability is high, easily manufactured, efficiency is high and stock utilization is high, torque is large, the life-span is long, the characteristics of low cost of manufacture.
The above, it is only better embodiment of the present invention, not invention is done to any pro forma restriction, every foundation know-why of the present invention, to any simple modification made for any of the above embodiments, equivalent variations or modification, still belongs in the scope of technical solution of the present invention.
Claims (8)
1. rotor structure, it is characterized in that: include main core, be formed with the axis hole that is arranged on main core central area, a plurality of conductor slots along main core outer perimeters region division, be arranged in a plurality of magnet steel grooves that are close to conductor slot in zone between conductor slot and axis hole, the two ends of described magnet steel groove are extended magnet isolation tank are arranged towards axis hole direction symmetry.
2. rotor structure as claimed in claim 1, it is characterized in that: described magnet isolation tank and magnet steel groove are interconnected, the formed extension of this magnet isolation tank forms isolation to the magnetic field of each self-forming between adjacent magnet steel groove, can turn around from stator in each magnetic field after walking around magnet isolation tank.
3. rotor structure as claimed in claim 1, it is characterized in that: described conductor slot number is N*P, and N is natural number, and P is electromotor series, and magnet steel groove number is P.
4. rotor structure as claimed in claim 3, it is characterized in that: described conductor slot is open outward opening grooved.
5. rotor structure as claimed in claim 1, is characterized in that: after the rotor dispersing sheet overlapping that described rotor is good by punching press is good, by cast aluminium, rotor dispersing sheet is cast as to cast-aluminum rotor.
6. rotor structure as claimed in claim 1, it is characterized in that: its magnet steel groove " N " utmost point of described rotor is that the magnet steel of unifying polarity by polylith is in series, adjacent magnet steel groove " S " utmost point is also that the magnet steel of unifying polarity by polylith is in series, and after whole rotor magnetic steel installs, " N " " S " is the integer decile.
7. rotor structure as claimed in claim 1 is characterized in that: the magnet steel in described magnet steel groove is arranged in groove by embedded mode, less than every magnetic space-filling casting glue.
8. the asynchronous starting permanent magnet synchronous motor with rotor structure as claimed in claim 1, include main shaft, front end housing, bearing, junction box assembly, rotor, stator core, support, rear end cap and encoder, rotor is arranged on main shaft by bearing, rotor and stator core pass through front end housing, rear end cap, support and junction box assembly link together and are bolted, having refilled encoder on main shaft fixes by bolt and rear end cap, it is characterized in that: described rotor, include main core, be formed with the axis hole that is arranged on main core central area, a plurality of conductor slots along main core outer perimeters region division, be arranged in a plurality of magnet steel grooves that are close to conductor slot in zone between conductor slot and axis hole, the two ends of described magnet steel groove are extended magnet isolation tank are arranged towards axis hole direction symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203739641U CN203326754U (en) | 2013-06-27 | 2013-06-27 | Rotor structure and asynchronous start permanent magnetic synchronous motor having rotor structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203739641U CN203326754U (en) | 2013-06-27 | 2013-06-27 | Rotor structure and asynchronous start permanent magnetic synchronous motor having rotor structure |
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| CN203326754U true CN203326754U (en) | 2013-12-04 |
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| CN2013203739641U Expired - Fee Related CN203326754U (en) | 2013-06-27 | 2013-06-27 | Rotor structure and asynchronous start permanent magnetic synchronous motor having rotor structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337922A (en) * | 2013-06-27 | 2013-10-02 | 信质电机股份有限公司 | Rotor structure for synchronous motor and asynchronous-startup permanent-magnet synchronous motor with rotor structure |
| CN105490419A (en) * | 2016-01-26 | 2016-04-13 | 尚勤贵 | Rotor of self-starting permanent magnet synchronous motor used for three-phase asynchronous motor |
| CN110165806A (en) * | 2019-05-21 | 2019-08-23 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of brake system permanent magnetic brushless rotor core structure |
-
2013
- 2013-06-27 CN CN2013203739641U patent/CN203326754U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337922A (en) * | 2013-06-27 | 2013-10-02 | 信质电机股份有限公司 | Rotor structure for synchronous motor and asynchronous-startup permanent-magnet synchronous motor with rotor structure |
| CN105490419A (en) * | 2016-01-26 | 2016-04-13 | 尚勤贵 | Rotor of self-starting permanent magnet synchronous motor used for three-phase asynchronous motor |
| CN110165806A (en) * | 2019-05-21 | 2019-08-23 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of brake system permanent magnetic brushless rotor core structure |
| CN110165806B (en) * | 2019-05-21 | 2024-05-14 | 尼得科凯宇汽车电器(江苏)有限公司 | Permanent magnet brushless motor rotor core structure for braking system |
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| 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: 20131204 Termination date: 20170627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |