CN205453440U - Permanent magnet motor - Google Patents
Permanent magnet motor Download PDFInfo
- Publication number
- CN205453440U CN205453440U CN201521098840.2U CN201521098840U CN205453440U CN 205453440 U CN205453440 U CN 205453440U CN 201521098840 U CN201521098840 U CN 201521098840U CN 205453440 U CN205453440 U CN 205453440U
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a permanent magnet motor belongs to the motor field, for solving the low scheduling problem design of present device torque density. The utility model discloses permanent magnet motor includes external stator, internal stator and rotor, and the rotor is located between external stator and the internal stator, wherein, the external stator comprises outer stator core, external stator armature winding and outer stator magnet, the internal stator comprises interior stator core, internal stator armature winding and interior stator magnet, be provided with the abversion pilot trench on being provided with adversion pilot trench, lateral surface on the rotor core's of rotor the medial surface, adversion pilot trench and external rotor inslot are inlayed respectively and are had the permanent magnet, form the inner rotor tooth between two adjacent adversion pilot trenchs, form the external rotor tooth between two adjacent abversion pilot trenchs, external stator armature winding's number of pole -pairs equals just to equal the stator slot with internal stator armature winding's number of pole -pairs and the rotor groove is only poor. The utility model discloses permanent magnet motor has increased the magnetic loading, has improved the torque density who directly drives the motor, wide application range.
Description
Technical field
This utility model relates to machine field, particularly relates to a kind of magneto.
Background technology
Magneto and magnetic gear are integrated by integrated magnetic gear motor, instead of conventional high rate motor and connect gear-box, reduce the volume and weight of whole system, thus improve the efficiency of system.
There are three layers of air gap in this electric machine structure: the air gap that two-layer air gap that magnetic gear adjustable magnetic ring and magnetic gear inner and outer rotors are formed and permanent magnet motor stator and magnetic gear internal rotor are formed, increase complexity and the difficulty of processing of structure, torque density is low.
Utility model content
The purpose of this utility model is to propose a kind of to add magnetic loading, improve the magneto of direct driving motor torque density.
For reaching this purpose, this utility model by the following technical solutions:
A kind of magneto, including external stator, inner stator and rotor, described rotor is between described external stator and inner stator；Wherein, described external stator is made up of external stator core, external stator armature winding and external stator permanent magnet；Described inner stator is made up of inner-stator iron core, inner stator armature winding and inner stator permanent magnet；It is provided with on the medial surface of the rotor core of described rotor on internal rotor groove, lateral surface and is provided with outer rotor groove, in described internal rotor groove and outer rotor groove, be inlaid with permanent magnet respectively；Form internal rotor tooth between adjacent two described internal rotor grooves, between adjacent two described outer rotor grooves, form outer rotor teeth；The quantity of external stator groove and pilot trench decided at the higher level but not officially announced is N1Individual, the quantity of internal rotor groove and outer rotor groove is N2Individual, the number of pole-pairs of external stator armature winding is equal with the number of pole-pairs of inner stator armature winding, is P1=| N1-N2| and N1≠N2。
Particularly, the most cylindrically, described rotor coaxial is set between described external stator and inner stator for described external stator, inner stator and rotor.
Particularly, the medial wall of described external stator is provided with external stator groove, between adjacent two described external stator grooves, forms external stator tooth；On the sidewall of described external stator tooth, evagination forms external tooth boots, and described external tooth boots protrude in described external stator groove；Described external stator groove is partitioned into two parts by described external tooth boots, and described external stator armature winding is arranged on the bottom of described external stator groove, and described external stator permanent magnet is arranged on the peristome of described external stator groove.
Further, the lateral wall of described inner stator is provided with pilot trench decided at the higher level but not officially announced, between adjacent two described pilot trench decided at the higher level but not officially announced, forms inner stator tooth；On the sidewall of described inner stator tooth, evagination forms internal tooth boots, and described internal tooth boots go out to described pilot trench convexity decided at the higher level but not officially announced；Described pilot trench decided at the higher level but not officially announced is partitioned into two parts by described internal tooth boots, and described inner stator armature winding is arranged on the bottom of described pilot trench decided at the higher level but not officially announced, and described inner stator permanent magnet is arranged on the peristome of described pilot trench decided at the higher level but not officially announced.
Further, described inner stator tooth is just arranged by described external stator tooth, and described pilot trench decided at the higher level but not officially announced is just arranged by described external stator groove.
Particularly, the peristome of described external stator groove is narrower than the bottom of described external stator groove；The peristome of described pilot trench decided at the higher level but not officially announced is narrower than the bottom of described pilot trench decided at the higher level but not officially announced.
Particularly, described rotor core is molded with by multiple H-shaped structural integrity；The peristome of described internal rotor groove is narrower than the bottom of described internal rotor groove, and the peristome of described outer rotor groove is narrower than the bottom of described outer rotor groove.
Particularly, it is provided with bolt hole on described internal rotor tooth and/or in outer rotor teeth.
Particularly, described external stator permanent magnet, inner stator permanent magnet and the permanent magnet that is embedded in described internal rotor groove and outer rotor groove magnetize the most in the same direction.
Particularly, described external stator armature winding be connected with inner stator armature winding formation electricity port.
This utility model magneto be the excitatory motor of bimorph transducer-dual permanent-magnet, external stator armature winding number of pole-pairs equal with the number of pole-pairs of inner stator armature winding and the poorest equal to stator slot and rotor slot, by using rotor arrangement between two stators to increase magnetic loading, improve the torque density of direct driving motor；External stator, inner stator and rotor are fitted with permanent magnet, further increase magnetic loading, improve the torque density of direct driving motor.This structure eliminates reduction box, reduces the volume and weight of whole system, eliminates the work such as gear-box periodic maintenance lubrication, has saved maintenance cost；Having lacked one layer of air gap compared with integrated magnetic gear motor, electric machine structure is the most more compact；Use double-stator structure, use two set armature winding, it is possible to reduce the electric current injecting motor.This utility model magneto is applied widely, is particularly suited for low-speed high-torque direct driving occasion, such as wind-power electricity generation, Ship Propeling etc..
Accompanying drawing explanation
Fig. 1 is the structural representation of the magneto that this utility model preferred embodiment provides；
Fig. 2 is the inside and outside star-like figure of stator slot electromotive force that this utility model preferred embodiment provides；
Fig. 3 is armature winding connection figure inside and outside the motor that this utility model preferred embodiment provides；
Fig. 4 is the assembling structural representation of the magneto that this utility model preferred embodiment provides.
Figure is labeled as:
11, external stator core；12, external stator armature winding；13, external stator permanent magnet；14, external stator tooth；15, external tooth boots；21, inner-stator iron core；22, inner stator armature winding；23, inner stator permanent magnet；24, inner stator tooth；25, internal tooth boots；30, rotor core；31, internal rotor groove；32, outer rotor groove；33, bolt hole；34, permanent magnet；41, casing；42, outer baffle ring；43, inner baffle ring；44, rotor end plates；45, rotary supporting part；46, axle；47, clutch shaft bearing；48, the second bearing；49, end cap.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by detailed description of the invention.
Preferred embodiment:
The open a kind of magneto of this preferred embodiment.As it is shown in figure 1, this magneto includes external stator, inner stator and rotor, rotor is between external stator and inner stator.Wherein, external stator is at least made up of external stator core 11, external stator armature winding 12 and external stator permanent magnet 13；Inner stator is at least made up of inner-stator iron core 21, inner stator armature winding 22 and inner stator permanent magnet 23；It is provided with on internal rotor groove 31, lateral surface on the medial surface of the rotor core 30 of rotor and is provided with outer rotor groove 32, in internal rotor groove 31 and outer rotor groove 32, be inlaid with permanent magnet 34 respectively；Form internal rotor tooth between adjacent two internal rotor grooves 31, between adjacent two outer rotor grooves 32, form outer rotor teeth.
This magneto arranges rotor between external stator, inner stator, thus adds magnetic loading, the torque density of raising direct driving motor.
The concrete shape of external stator, inner stator and rotor does not limits, it is preferred that the most cylindrically, rotor coaxial is set between external stator and inner stator and can rotate between external stator and inner stator for external stator, inner stator and rotor.
The medial wall of external stator is provided with external stator groove, between adjacent two external stator grooves, forms external stator tooth 14；On the sidewall of external stator tooth 14, evagination forms external tooth boots 15, protrudes in the outside stator slot of external tooth boots 15；External stator groove is partitioned into two parts by external tooth boots 15, and external stator armature winding 12 is arranged on the bottom of external stator groove, and external stator permanent magnet 13 is arranged on the peristome of external stator groove.
The lateral wall of inner stator is provided with pilot trench decided at the higher level but not officially announced, between adjacent two pilot trench decided at the higher level but not officially announced, forms inner stator tooth 24；On the sidewall of inner stator tooth 24, evagination forms internal tooth boots 25, protrudes in the inside stator slot of internal tooth boots 25；Pilot trench decided at the higher level but not officially announced is partitioned into two parts by internal tooth boots 25, and inner stator armature winding 22 is arranged on the bottom of pilot trench decided at the higher level but not officially announced, and inner stator permanent magnet 23 is arranged on the peristome of pilot trench decided at the higher level but not officially announced.
On the basis of said structure, external stator tooth 14 just internally stator tooth 24 is arranged, and external stator groove just internally stator slot is arranged.External stator permanent magnet 13, inner stator permanent magnet 23 and the permanent magnet 34 being embedded in internal rotor groove 31 and outer rotor groove 32 magnetize the most in the same direction.
The quantity of external stator groove and pilot trench decided at the higher level but not officially announced is N1Individual, the quantity of internal rotor groove 31 and outer rotor groove 32 is N2Individual, when designing motor, the number of pole-pairs of external stator armature winding 12 to be ensured is equal with the number of pole-pairs of inner stator armature winding 22, is P1=| N1-N2| and N1≠N2.Preferably, N1＞ N2, i.e. P1=N1-N2。
External stator armature winding 12 is connected with inner stator armature winding 22 and forms an electric port, it is also possible to is not attached to together, powers the most for it as two electric ports, depending on concrete connection can be according to use demand.
Radially outward to magnetize, external stator armature winding 12 be connected with inner stator armature winding 22 formation one electric port as a example by, to the three-phase symmetrical alternating current that this electricity port injected frequency is f, electric current is ω by producing a speed1Rotating excitation field (be assumed to be counterclockwise), by bidirectional magnetic field mudulation effect, effective harmonic field by rotor driven with ω2Clockwise direction rotate, motor externally exports torque, i.e. motor and is operated in motoring condition.Wherein: ω1=60f/P1, ω2=-P1ω1/N2, negative sign represents that rotor speed is contrary with rotating excitation field speed.In like manner, when rotor is with ω2Clockwise direction when rotating, motor can send, at this electricity port, the alternating current that frequency is f.
Fig. 2 is this preferred embodiment China and foreign countries stator slot, star-like figures of pilot trench electromotive force decided at the higher level but not officially announced；Fig. 3 is interior armature winding and external armature winding connection figure, and wherein, A, B, C, X, Y, Z represent six joints of three windings respectively.In the preferred embodiment, stator slot N1=66, rotor slot N2=62, inside and outside stator armature winding number of pole-pairs is 4, and armature slot number is identical, and two the inside and outside armature slot labels faced are identical, so the inside and outside star-like figure of stator slot electromotive force is identical with inside and outside armature winding connection figure.
On the basis of said structure, the peristome of external stator groove is narrower than the bottom of external stator groove, the peristome of pilot trench decided at the higher level but not officially announced is narrower than the bottom of pilot trench decided at the higher level but not officially announced, and this structure is easy to be fixed in external stator groove by external stator permanent magnet 13, be fixed in pilot trench decided at the higher level but not officially announced by inner stator permanent magnet 23.Wherein, the shape of external stator permanent magnet 13 and/or inner stator permanent magnet 23 is suitable with the shape of corresponding groove respectively.
Correspondingly, rotor core 30 is molded with by multiple H-shaped structural integrity.The peristome of internal rotor groove 31 is narrower than the bottom of internal rotor groove 31, and the peristome of outer rotor groove 32 is narrower than the bottom of outer rotor groove 32, and this structure is easy to be separately fixed in internal rotor groove 31 or outer rotor groove 32 permanent magnet 34.It is provided with bolt hole 33 on internal rotor tooth and/or in outer rotor teeth, is used for wearing bolt.
Fig. 4 show a kind of assembling structure of this utility model magneto.The external stator assembled and inner stator being loaded in casing 41, the termination, side of external stator and inner stator is connected on the boss within casing 41, and the opposite side of external stator is provided with outer baffle ring 42, and the opposite side of inner stator is provided with inner baffle ring 43.Wherein, inner baffle ring 43 is bolted in casing 41.
Rotor is inserted between external stator and inner stator.The termination, side of rotor is provided with rotor end plates 44, and opposite side termination is provided with rotary supporting part 45.Axle 46 is through rotary supporting part 45, and the termination, side of axle 46 is provided with clutch shaft bearing 47, and opposite side termination is provided with the second bearing 48.It is provided with end cap 49 outside second bearing 48, end cap 49 is fixed in casing 41, complete assembling.
Note, above are only preferred embodiment of the present utility model and the know-why used.It will be appreciated by those skilled in the art that this utility model is not limited to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute without departing from protection domain of the present utility model.Therefore, although this utility model being described in further detail by above example, but this utility model is not limited only to above example, in the case of conceiving without departing from this utility model, other Equivalent embodiments more can also be included, and scope of the present utility model is determined by scope of the appended claims.
Claims (10)
1. a magneto, it is characterised in that including external stator, inner stator and rotor, described rotor is between described external stator and inner stator；Wherein,
Described external stator is made up of external stator core (11), external stator armature winding (12) and external stator permanent magnet (13)；
Described inner stator is made up of inner-stator iron core (21), inner stator armature winding (22) and inner stator permanent magnet (23)；
It is provided with on internal rotor groove (31), lateral surface on the medial surface of the rotor core (30) of described rotor and is provided with outer rotor groove (32), in described internal rotor groove (31) and outer rotor groove (32), be inlaid with permanent magnet (34) respectively；Form internal rotor tooth between adjacent two described internal rotor grooves (31), between adjacent two described outer rotor grooves (32), form outer rotor teeth；
The quantity of external stator groove and pilot trench decided at the higher level but not officially announced is N1Individual, the quantity of internal rotor groove (31) and outer rotor groove (32) is N2Individual, the number of pole-pairs of external stator armature winding (12) is equal with the number of pole-pairs of inner stator armature winding (22), is P1=| N1-N2| and N1≠N2。
Magneto the most according to claim 1, it is characterised in that the most cylindrically, described rotor coaxial is set between described external stator and inner stator for described external stator, inner stator and rotor.
Magneto the most according to claim 1, it is characterised in that be provided with external stator groove on the medial wall of described external stator, forms external stator tooth (14) between adjacent two described external stator grooves；On the sidewall of described external stator tooth (14), evagination forms external tooth boots (15), and described external tooth boots (15) are protruded in described external stator groove；Described external stator groove is partitioned into two parts by described external tooth boots (15), described external stator armature winding (12) is arranged on the bottom of described external stator groove, and described external stator permanent magnet (13) is arranged on the peristome of described external stator groove.
Magneto the most according to claim 3, it is characterised in that be provided with pilot trench decided at the higher level but not officially announced on the lateral wall of described inner stator, forms inner stator tooth (24) between adjacent two described pilot trench decided at the higher level but not officially announced；On the sidewall of described inner stator tooth (24), evagination forms internal tooth boots (25), and described internal tooth boots (25) go out to described pilot trench convexity decided at the higher level but not officially announced；Described pilot trench decided at the higher level but not officially announced is partitioned into two parts by described internal tooth boots (25), described inner stator armature winding (22) is arranged on the bottom of described pilot trench decided at the higher level but not officially announced, and described inner stator permanent magnet (23) is arranged on the peristome of described pilot trench decided at the higher level but not officially announced.
Magneto the most according to claim 4, it is characterised in that described inner stator tooth (24) is just arranged by described external stator tooth (14), described pilot trench decided at the higher level but not officially announced is just arranged by described external stator groove.
Magneto the most according to claim 4, it is characterised in that the peristome of described external stator groove is narrower than the bottom of described external stator groove；The peristome of described pilot trench decided at the higher level but not officially announced is narrower than the bottom of described pilot trench decided at the higher level but not officially announced.
7. according to the arbitrary described magneto of claim 1 to 6, it is characterised in that described rotor core (30) is molded with by multiple H-shaped structural integrity；The peristome of described internal rotor groove (31) is narrower than the bottom of described internal rotor groove (31), and the peristome of described outer rotor groove (32) is narrower than the bottom of described outer rotor groove (32).
8. according to the arbitrary described magneto of claim 1 to 6, it is characterised in that be provided with bolt hole (33) on described internal rotor tooth and/or in outer rotor teeth.
9. according to the arbitrary described magneto of claim 1 to 6, it is characterized in that, described external stator permanent magnet (13), inner stator permanent magnet (23) and the permanent magnet (34) being embedded in described internal rotor groove (31) and outer rotor groove (32) magnetize the most in the same direction.
10. according to the arbitrary described magneto of claim 1 to 6, it is characterised in that described external stator armature winding (12) is connected with inner stator armature winding (22) and forms electricity port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521098840.2U CN205453440U (en) | 2015-12-25 | 2015-12-25 | Permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521098840.2U CN205453440U (en) | 2015-12-25 | 2015-12-25 | Permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453440U true CN205453440U (en) | 2016-08-10 |
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ID=56578102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521098840.2U Withdrawn - After Issue CN205453440U (en) | 2015-12-25 | 2015-12-25 | Permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471210A (en) * | 2015-12-25 | 2016-04-06 | 南方科技大学 | Permanent magnet motor |
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2015
- 2015-12-25 CN CN201521098840.2U patent/CN205453440U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471210A (en) * | 2015-12-25 | 2016-04-06 | 南方科技大学 | Permanent magnet motor |
| CN105471210B (en) * | 2015-12-25 | 2018-05-04 | 南方科技大学 | A kind of magneto |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20180504 |
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| AV01 | Patent right actively abandoned |