CN201286055Y - Salient pole permanent magnet synchronous motor - Google Patents
Salient pole permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN201286055Y CN201286055Y CNU2008201663666U CN200820166366U CN201286055Y CN 201286055 Y CN201286055 Y CN 201286055Y CN U2008201663666 U CNU2008201663666 U CN U2008201663666U CN 200820166366 U CN200820166366 U CN 200820166366U CN 201286055 Y CN201286055 Y CN 201286055Y
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a permanent magnetism synchronous electric machine structure, especially relates to a salient pole permanent magnetism synchronization non-gear elevator electric motor be applicable to small machinery room or non-machinery room. The salient pole permanent magnetism synchronous electric machine comprises an engine base, a stator and a rotor, the rotor comprises a rotating shaft, a rotor core and permanent magnets, the rotor core a plurality of rotor punching plates which are laminated, the periphery direction of the rotor punching plates are provided with tangential rectangle ports with same number of poles of the electric motor, a port for separating magnetism is arranged between two tangential rectangle ports, the tangential rectangle ports on the rotor punching plates form into mounting holes, the ports for separating magnetism on the rotor punching plates form into bridges for separating magnetism, the permanent magnets are in flat type, inserted into the mounting holes, distributed alternately on N-pole and S-pole which are at the inner circumference of the rotor core, and formed into polygon shape with same number of poles of the electric motor. The utility model is characteristics of simple structures of the permanent magnets, low cost, better speed governing performance, high efficiency and power factor, obvious energy-saving effect, more easily realized magnetism speed multiplying, and more being applicable to the speed change elevator.
Description
Technical field
The utility model relates to a kind of permagnetic synchronous motor structure, especially relates to a kind of salient pole permanent magnetism synchronization gear wheel free elevator motor that is applicable to small room, no machine room.
Technical background
Along with the development of permanent magnetic material and power electronic technology, the application of permanent magnetism synchronization gear wheel free elevator motor is very extensive.At present with the structure of motor based on external rotor, its permanent magnet is a circular arc, and is bonding or be fixed on the rotor block inner surface with pressing plate, stator adopts skewed slot riveted joint mode to fix, as the traction machine structure of patent CN1141775C announcement.The inner rotor core traction machine is also arranged, and permanent magnet is installed dual mode commonly used, adorns the formula rotor structure as the face that patent CN101016137 announces; The permanent magnet of announcing with patent CN2518257Y is inserted in the rotor core internal structure.
The motor of outer-rotor structure is a non salient pole machine, and its speed adjusting performance is very high, but its permanent magnet is outer subsides mode, and permanent magnetic material is a circular arc, and processing cost is higher.And permanent magnet when work contact with air, easy oxidation need be carried out surface treatment, has increased cost.When motor need carry out the weak magnetism speed expansion output-constant operation, need very big weak magnetoelectricity stream, so its expansion speed scope is subjected to the restriction of frequency inverter capacity and electric machine temperature rise.
The inner rotor core motor also is a non salient pole machine when using permanent magnetism dignity assembling structure, and its characteristic is identical with outer-rotor structure.Insert internal rotor in permanent magnet, motor d-axis magnetic circuit is asymmetric with friendship axle magnetic circuit, and motor is the salient pole machine characteristic.The salient pole permanent magnet motor structure has salient pole moment to exist, and can reach 20～40% of rated moment, therefore adopts the salient-pole structure design can improve power of motor density, reduces motor volume, saves cost.
The salient pole type magneto has good weak magnetism speed expansion function, and when motor need move more than normal speed, its weak magnetoelectricity stream that is used for the expansion speed function had increased the salient pole moment of motor output simultaneously, and electric efficiency and power factor can improve greatly.Elevator industry is more and more paid attention to the elevator operational efficiency at present, in order to improve operational efficiency, has developed a kind of speed change elevator.When car full load elevator moves with normal speed, when empty load of motor or underloading, elevator then improves the speed of service, and this moment, traction machine need move at constant output characteristic.Salient pole machine more is applicable to this speed change elevator operation principle.
Chinese patent CN2662525Y discloses a kind of AC permanent-magnet synchronous servo motor, belong to electric motors, mainly comprise front end housing, rotating shaft, casing, stator core, rotor core, magnet steel, cover plate, rear end cap, terminal box, rotor core is laminated by rotor punching or single-casting processes, the magnet steel slotted eye is arranged on the rotor punching, leave the leakage field magnetic circuit between the slotted eye, yoke portion is a main magnetic circuit, and magnet steel inserts in the rotor core slotted eye; Stator core is overrided to form by stator punching, and the iron core cylindrical welds fixing, and keeps the stator core skewed slot within the specific limits.It is sinusoidal waveform that this motor makes the back-emf of motor with simple method, very little cost.Take skewed stator slot, winding for short distance measure simultaneously and adjust the air gap size, can make motor counter potential waveform aberration rate less than 1%.Thereby make with sine-shaped driver and reach best matching effect.But, be not suitable for heavy-duty motor because the leakage field magnetic circuit is arranged in the slotted eye.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model provides a kind of salient pole permagnetic synchronous motor, and this motor has that magnet structure is simple, and power is big, good speed adjustment features, the tangible characteristics of energy-saving effect.
In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:
The salient pole permagnetic synchronous motor, this motor comprises support, stator and rotor, rotor is made of rotating shaft, rotor core and permanent magnet, rotor core is overrided to form by some rotor punchings, upwards be provided with the tangential rectangular opening identical the week of rotor punching with motor pole number, be provided with every the magnetic mouth between two tangential rectangular opening, the tangential rectangular opening on some rotor punchings constitutes installing hole, constituting every magnetic bridge every the magnetic mouth on some rotor punchings; Described permanent magnet is flat, is plugged in the installing hole, and permanent magnet N, S utmost point on the rotor core inner circumferential are alternately distributed, and form the polygonal shape identical with motor pole number.
As preferably, above-mentioned every trapezoidal mouthful or the flute profile mouth that opens wide of magnetic mouth for sealing.Can increase rotor strength every the magnetic mouth with trapezoidal mouthful.
As preferably, above-mentioned permanent magnet is a monoblock or is spliced to form by polylith.
As preferably, above-mentioned permanent magnet adopts NdFeB material, and the upper and lower surface of permanent magnet scribbles anaerobic adhesive respectively.
As preferably, the both ends of above-mentioned rotor core are provided with end plate respectively, two end plate closes rotor cores, and fastening by set bolt.
As preferably, when above-mentioned rotor magnetic pole axis was parallel with motor shaft, stator core adopted skewed slot to handle, and the skewed slot distance is 0.5～1 times of tooth pitch.
As preferably, during tooth of the oblique utmost point of above-mentioned rotor magnetic pole axis apart from the time, stator adopts the straight trough structure.
As preferably, in the a11 angle setting of staggering of same extremely adjacent two permanent magnets, the calculating formula of a11 is as follows:
Wherein: a11 is two angles that permanent magnet staggers, and Z is the stator core slot number, and N is every utmost point permanent magnet quantity.
As preferably, above-mentioned stator winding adopts double-deck short square distributed winding; Slot number cooperates employing integer groove winding, 36 grooves, 6 utmost points, 48 grooves, 8 utmost points or 60 grooves, 10 utmost points; Perhaps slot number cooperates the employing fractional-slot to cooperate 27 grooves, 12 utmost points, 36 grooves, 16 utmost points, 45 grooves, 20 utmost points, 54 grooves, 24 utmost points, 72 grooves, 32 utmost points, 81 grooves, 36 utmost points, 36 grooves, 24 utmost points, 45 grooves, 30 utmost points, 48 grooves, 32 utmost points or 60 grooves, 40 utmost points.
This above-mentioned motor also comprises rear end cap, traction sheave, brake and encoder, and traction sheave is arranged on the front end of rotating shaft, and brake is arranged on the rear end of rotating shaft, and brake is fixed on the rear end cap, and encoder is arranged on the tail end of rotating shaft.
The utility model is that magnet structure is simple owing to having adopted above-mentioned technical scheme, its product characteristics, and cost is low, and back electromotive force is sinusoidal wave, and speed adjusting performance is better; Its salient pole rate can be according to the instructions for use adjustment, so efficient and power factor are higher, and energy-saving effect is higher obviously, and easier realization weak magnetism speed expansion power is applicable to that more the speed change elevator uses.Simultaneously, with respect to the disclosed structure of CN2662525Y, it is bigger that product power of the present utility model can be done.
Description of drawings
Fig. 1 is the utility model complete machine structure schematic diagram.
Fig. 2 is stator, rotor punching notching construction schematic diagram.
Fig. 3 is that the flute profile mouth is every magnetic mouth punching structural representation.
Fig. 4 is that trapezoidal mouth is every magnetic mouth punching structural representation.
Fig. 5 is 20 utmost point motor permanent magnet distributed architecture schematic diagrames.
When Fig. 6 is the straight utmost point, the permanent magnet scheme of installation.
When Fig. 7 is the oblique utmost point, the permanent magnet scheme of installation.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made a detailed explanation.
Embodiment 1:
With reference to accompanying drawing 1, the described salient pole permagnetic synchronous motor of present embodiment, it is an inner rotor core.Mainly form by rotating shaft 1, traction sheave 2, bearing cap 3, bearing 4, support 5, stator core 8, winding 11, rotor core 10, permanent magnet 9, rear end cap 12, brake 14, encoder 15, terminal box 13.Traction sheave 2 is contained in rotating shaft 1 front end, and brake 14 is contained in rotating shaft 1 rear end, and brake 14 is fixed on the back end cover for motor 12.Encoder 15 is installed in main shaft 1 tail end, fixes by the housing of brake 14.Motor stator core 8 is overrided to form by stator punching, and is fitted in support 5 inside after adopting the cramp fastening.Winding coil 11 embeds in the stator slot, adopts the double-deck short distance distributed winding of three-phase.As shown in Figure 1, rotor is made up of rotating shaft 1, rotor core 10, permanent magnet 9, rotor end plates 6 and set bolt 19, and rotor core 10 is overrided to form by some rotor punchings 18.Upwards be provided with the tangential rectangular opening 16 identical the week of rotor punching 18 with motor pole number, be provided with every magnetic mouth 17 between two tangential rectangular opening 16, can be trapezoidal mouthful (as shown in Figure 3) of sealing every magnetic mouth 17, every magnetic mouth 17 also flute profile mouth (as shown in Figure 4) for opening wide.Tangential rectangular opening 16 on some rotor punchings 18 constitutes installing hole, constituting every magnetic bridge every magnetic mouth 17 on some rotor punchings 18.
As shown in Figure 3, Figure 4, permanent magnet 9 is flat, is inserted in the installing hole.Permanent magnet 9 N, S utmost point on the core interior circumference are alternately distributed, and form a polygonal shape identical with motor pole number.Same magnetic pole is spliced by 4 permanent magnets 9, as shown in Figure 5.After permanent magnet 9 inserts in the rotors, rotor core is tightened up with two end plates 6 and set bolt 19.
Use fractional slot winding among this embodiment, stator 45 grooves, 20 magnetic poles of rotor, winding span 1～3.Tooth pitch of skewed stator slot, rotor magnetic pole axis parallel with the electromechanics axle (as shown in Figure 6).Permanent magnet 9 adopts NdFeB material, is coated with anaerobic adhesive in permanent magnet 9 upper and lower surfaces when inserting permanent magnet 9.
Use integer groove winding among this embodiment, stator 36 grooves, 6 magnetic poles of rotor, winding span 1～6.As shown in Figure 7, in the a11 angle setting of staggering of same extremely adjacent two permanent magnets, the value of a11 is 2.5 °.The other technologies feature is shown in embodiment 1.
Claims (10)
1. salient pole permagnetic synchronous motor, this motor comprises support (5), stator and rotor, rotor is made of rotating shaft (1), rotor core (10) and permanent magnet (9), rotor core (10) is overrided to form by some rotor punchings (18), it is characterized in that: upwards be provided with the tangential rectangular opening (16) identical the week of rotor punching (18) with motor pole number, be provided with between two tangential rectangular opening (16) every magnetic mouth (17), tangential rectangular opening (16) on some rotor punchings (18) constitutes installing hole, constituting every magnetic bridge every magnetic mouth (17) on some rotor punchings (18); Described permanent magnet (9) is flat, is plugged in the installing hole, and permanent magnet (9) N, S utmost point on rotor core (10) inner circumferential are alternately distributed, and form the polygonal shape identical with motor pole number.
2. salient pole permagnetic synchronous motor according to claim 1 is characterized in that: every trapezoidal mouthful or the flute profile mouth that open wide of magnetic mouth (17) for sealing.
3. salient pole permagnetic synchronous motor according to claim 1 is characterized in that: permanent magnet (9) is a monoblock or is spliced to form by polylith.
4. salient pole permagnetic synchronous motor according to claim 3 is characterized in that: permanent magnet (9) adopts NdFeB material, and the upper and lower surface of permanent magnet (9) scribbles anaerobic adhesive respectively.
5. according to claim 1 or 3 or 4 described salient pole permagnetic synchronous motors, it is characterized in that: the both ends of rotor core (10) are provided with end plate (6) respectively, two end plates (6) enclosed rotor iron cores (10), and fastening by set bolt (19).
6. salient pole permagnetic synchronous motor according to claim 1 is characterized in that: when the rotor magnetic pole axis was parallel with motor shaft, stator core adopted skewed slot to handle, and the skewed slot distance is 0.5～1 times of tooth pitch.
7. salient pole permagnetic synchronous motor according to claim 1 is characterized in that: during tooth of the oblique utmost point of rotor magnetic pole axis apart from the time, stator adopts the straight trough structure.
8. salient pole permagnetic synchronous motor according to claim 7 is characterized in that: in same extremely adjacent two permanent magnets (9) the a11 angle setting of staggering,
Wherein: a11 is the angle that two permanent magnets (9) stagger, and Z is the stator core slot number, and N is every utmost point permanent magnet (9) quantity.
9. salient pole permagnetic synchronous motor according to claim 1 is characterized in that: stator winding adopts double-deck short square distributed winding; Slot number cooperates employing integer groove winding, 36 grooves, 6 utmost points, 48 grooves, 8 utmost points or 60 grooves, 10 utmost points; Perhaps slot number cooperates the employing fractional-slot to cooperate 27 grooves, 12 utmost points, 36 grooves, 16 utmost points, 45 grooves, 20 utmost points, 54 grooves, 24 utmost points, 72 grooves, 32 utmost points, 81 grooves, 36 utmost points, 36 grooves, 24 utmost points, 45 grooves, 30 utmost points, 48 grooves, 32 utmost points or 60 grooves, 40 utmost points.
10. according to claim 1 or 2 or 3 or 4 or 6 or 7 or 8 or 9 described salient pole permagnetic synchronous motors, it is characterized in that: this motor also comprises rear end cap (12), traction sheave (2), brake (14) and encoder (15), traction sheave (2) is arranged on the front end of rotating shaft (1), brake (14) is arranged on the rear end of rotating shaft (1), brake (14) is fixed on the rear end cap (12), and encoder (15) is arranged on the tail end of rotating shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201663666U CN201286055Y (en) | 2008-10-20 | 2008-10-20 | Salient pole permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201663666U CN201286055Y (en) | 2008-10-20 | 2008-10-20 | Salient pole permanent magnet synchronous motor |
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| Publication Number | Publication Date |
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| CN201286055Y true CN201286055Y (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201663666U Expired - Fee Related CN201286055Y (en) | 2008-10-20 | 2008-10-20 | Salient pole permanent magnet synchronous motor |
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| CN (1) | CN201286055Y (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264947A (en) * | 2013-05-30 | 2013-08-28 | 上海法西驱动技术有限公司 | Iron coreless rare-earth permanent magnetic gearless traction machine |
| 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 |
| CN103337921A (en) * | 2013-06-27 | 2013-10-02 | 信质电机股份有限公司 | Rotor structure for frequency-variable speed-regulating motor and frequency-variable speed-regulating motor with rotor structure |
| CN104065226A (en) * | 2014-06-19 | 2014-09-24 | 浙江中源电气有限公司 | Permanent magnet vector motor |
| CN104393716A (en) * | 2014-12-08 | 2015-03-04 | 北京京仪敬业电工科技有限公司 | Alternating current servo motor assembly process with brake |
| CN104617694A (en) * | 2015-02-11 | 2015-05-13 | 苏州和鑫电气股份有限公司 | Permanent-magnet motor rotor with powerful stepped chute |
| CN106300853A (en) * | 2016-08-12 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | Permanent magnet synchronous motor stator for electric automobile |
| CN106411085A (en) * | 2016-10-20 | 2017-02-15 | 上海应用技术大学 | 3kW ultra-efficient permanent magnet synchronous motor |
| CN106571705A (en) * | 2016-10-20 | 2017-04-19 | 上海应用技术大学 | 30 kW ultra-high-efficiency permanent magnet synchronous motor |
| CN106571724A (en) * | 2016-10-20 | 2017-04-19 | 上海应用技术大学 | 110kw ultra-efficient permanent magnet synchronous motor |
| CN106571723A (en) * | 2016-10-20 | 2017-04-19 | 上海应用技术大学 | 160kW ultra-efficient permanent magnet synchronous motor |
| CN107055284A (en) * | 2017-04-18 | 2017-08-18 | 快意电梯股份有限公司 | Permanent magnet synchronous traction machine with outer rotor |
| CN109534136A (en) * | 2019-01-28 | 2019-03-29 | 张云天 | Low temperature resistant traction machine |
| WO2019196501A1 (en) * | 2018-04-11 | 2019-10-17 | 佛山市顺德区金泰德胜电机有限公司 | Permanent magnet synchronous gearless traction machine |
| CN112087083A (en) * | 2020-09-02 | 2020-12-15 | 无锡赛盈动力科技有限公司 | High-efficient tricycle actuating system |
| CN112242778A (en) * | 2020-09-25 | 2021-01-19 | 中车永济电机有限公司 | High-power high-speed magnetic suspension permanent magnet motor |
-
2008
- 2008-10-20 CN CNU2008201663666U patent/CN201286055Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264947A (en) * | 2013-05-30 | 2013-08-28 | 上海法西驱动技术有限公司 | Iron coreless rare-earth permanent magnetic gearless traction machine |
| 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 |
| CN103337921A (en) * | 2013-06-27 | 2013-10-02 | 信质电机股份有限公司 | Rotor structure for frequency-variable speed-regulating motor and frequency-variable speed-regulating motor with rotor structure |
| CN104065226A (en) * | 2014-06-19 | 2014-09-24 | 浙江中源电气有限公司 | Permanent magnet vector motor |
| CN104393716A (en) * | 2014-12-08 | 2015-03-04 | 北京京仪敬业电工科技有限公司 | Alternating current servo motor assembly process with brake |
| CN104393716B (en) * | 2014-12-08 | 2016-10-05 | 北京京仪敬业电工科技有限公司 | A kind of AC servo motor assembly technology with brake |
| CN104617694A (en) * | 2015-02-11 | 2015-05-13 | 苏州和鑫电气股份有限公司 | Permanent-magnet motor rotor with powerful stepped chute |
| CN106300853B (en) * | 2016-08-12 | 2019-06-21 | 合肥国轩高科动力能源有限公司 | Permanent magnet synchronous motor stator for electric automobile |
| CN106300853A (en) * | 2016-08-12 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | Permanent magnet synchronous motor stator for electric automobile |
| CN106411085A (en) * | 2016-10-20 | 2017-02-15 | 上海应用技术大学 | 3kW ultra-efficient permanent magnet synchronous motor |
| CN106571724A (en) * | 2016-10-20 | 2017-04-19 | 上海应用技术大学 | 110kw ultra-efficient permanent magnet synchronous motor |
| CN106571723A (en) * | 2016-10-20 | 2017-04-19 | 上海应用技术大学 | 160kW ultra-efficient permanent magnet synchronous motor |
| CN106571705A (en) * | 2016-10-20 | 2017-04-19 | 上海应用技术大学 | 30 kW ultra-high-efficiency permanent magnet synchronous motor |
| CN107055284A (en) * | 2017-04-18 | 2017-08-18 | 快意电梯股份有限公司 | Permanent magnet synchronous traction machine with outer rotor |
| CN107055284B (en) * | 2017-04-18 | 2023-11-28 | 快意电梯股份有限公司 | Outer rotor permanent magnet synchronous traction machine |
| WO2019196501A1 (en) * | 2018-04-11 | 2019-10-17 | 佛山市顺德区金泰德胜电机有限公司 | Permanent magnet synchronous gearless traction machine |
| CN109534136A (en) * | 2019-01-28 | 2019-03-29 | 张云天 | Low temperature resistant traction machine |
| CN112087083A (en) * | 2020-09-02 | 2020-12-15 | 无锡赛盈动力科技有限公司 | High-efficient tricycle actuating system |
| CN112242778A (en) * | 2020-09-25 | 2021-01-19 | 中车永济电机有限公司 | High-power high-speed magnetic suspension permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20121020 |