CN110535316B - Outer rotor horseshoe-shaped winding permanent magnet motor - Google Patents
Outer rotor horseshoe-shaped winding permanent magnet motor Download PDFInfo
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- CN110535316B CN110535316B CN201910922833.6A CN201910922833A CN110535316B CN 110535316 B CN110535316 B CN 110535316B CN 201910922833 A CN201910922833 A CN 201910922833A CN 110535316 B CN110535316 B CN 110535316B
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- 238000004804 winding Methods 0.000 title claims abstract description 45
- 230000017525 heat dissipation Effects 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005426 magnetic field effect Effects 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
- H02K1/143—Stator cores with salient poles consisting of C-shaped cores of the horse-shoe type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses an outer rotor horseshoe-shaped winding permanent magnet motor which comprises a stator unit, a rotor unit and a shell end cover, wherein the stator unit is connected with the shell end cover, the stator unit is arranged in the rotor unit, a motor shaft is connected with the rotor unit, and the motor shaft is rotationally connected with the shell end cover. The permanent magnet motor has the advantages that the composite magnetic circuit structure is provided by designing the mounting structure of the windings on the stator, so that the torque density and the power density of the permanent magnet motor are improved, the weight is reduced, the stator assembly is subjected to a vacuum encapsulation scheme, the heat dissipation effect is improved, and the high torque density is excellent.
Description
Technical Field
The invention relates to an outer rotor horseshoe-shaped winding permanent magnet motor, and belongs to the technical field of permanent magnet motors.
Background
Compared with the traditional electric excitation motor, the permanent magnet motor has the advantages of simple and compact structure, high operation reliability, small volume, light weight, low loss, high efficiency, high control precision and the like. The shape and the size of the permanent magnet motor are not similar to the conventional induction motor, and the permanent magnet motor has the remarkable advantages of flexibility, diversity and the like. And thus receives a great deal of attention from various industries, both industrial and civil.
Disclosure of Invention
The invention provides an outer rotor horseshoe-shaped winding permanent magnet motor, which adopts a horseshoe-shaped stator core and has the specific technical scheme that:
the outer rotor horseshoe-shaped winding permanent magnet motor comprises a stator unit, a rotor unit and a shell end cover, wherein the stator unit is connected with the shell end cover, the stator unit is arranged in the rotor unit, a motor shaft is connected with the rotor unit, and the motor shaft is rotationally connected with the shell end cover;
The stator unit is an annular stator surrounded by a plurality of horseshoe-shaped stators, the openings of all the horseshoe-shaped stators face outwards, the horseshoe-shaped stators are formed by stacking silicon steel sheets, stator windings are wound on two legs of the horseshoe-shaped stators to form a horseshoe-shaped stator core, a magnetic field at one end of a U-shaped winding of the horseshoe-shaped stator core is defined as an N pole, and a magnetic field at the other end of the U-shaped winding of the horseshoe-shaped stator core is defined as an S pole; the end part of each leg of the horseshoe-shaped stator core is fixed with an iron core frame, and a gap is reserved between two iron core frames on each horseshoe-shaped stator core; gaps are reserved between two adjacent iron core frames on every two adjacent horseshoe-shaped stator cores forming the annular stator, and N poles and S poles of every two adjacent horseshoe-shaped stator cores forming the annular stator are alternately arranged;
The shell end cover comprises a connecting end cover and an assembling sleeve, and the assembling sleeve is vertically arranged on the plate surface of the connecting end cover; the assembly sleeve is inserted into the annular stator, the stator unit and the shell end cover are subjected to vacuum casting by adopting epoxy resin, and are solidified and molded, so that the stator core, the winding and the shell end cover form an integral stator assembly;
The motor shaft is inserted into the assembly sleeve and is rotationally connected with the assembly sleeve through at least one bearing, and one end of the motor shaft protrudes out of the assembly sleeve;
The rotor unit comprises a rotor yoke and a plurality of magnets adhered to the inner surface of the rotor yoke, wherein the magnets are arranged in two rings corresponding to the ring-shaped stator, and the magnets positioned on the same circumference are alternately arranged with N poles and S poles; gaps are reserved between adjacent magnets positioned on the same circumference, and the number of the magnets and the number of the U-shaped windings are set according to the number of the slot pole matches of any conventional permanent magnet motor; the rotor yoke is barrel-shaped, a connecting flange is arranged at the center of the barrel bottom in the rotor yoke, the rotor yoke is sleeved outside the stator unit, and the connecting flange is connected with the end part of the motor shaft.
The principle of the outer rotor horseshoe-shaped winding permanent magnet motor is that a horseshoe-shaped stator winding utilizes the principle that a magnetic field at one end of a U-shaped winding is N, and the magnetic field at the other end is necessarily S-pole, and makes full use of the principle, and two ends of N-S poles are simultaneously placed in an air gap magnetic field. Therefore, the motor forms an axial magnetic flux shunt and a radial magnetic flux shunt, the magnetic field effect is greatly utilized, the conventional motor stator yoke part is not needed, and the torque density and the power density of the permanent magnet motor are increased. And when two adjacent windings of the stator are electrified at a certain time, N-S/N-S stator magnetic poles are formed, and the two pairs of N-S/N-S magnetic poles correspond to adjacent magnetic steels N-S/N-S on the rotor.
For the optimization of the technical scheme of the invention, the iron core frame is a square plate, and holes for inserting the legs of the horseshoe-shaped stator iron core are formed in the square plate. The iron core frame is made of magnetic conduction materials and is made of a No. 45 steel plate or a Q235 steel plate or a Q195 steel plate. Because each horseshoe-shaped stator core is an independent unit, the horseshoe-shaped stator core is fixed on the core frame, the core frames are made of magnetic conductive materials and have magnetism gathering effect, and each core frame N-S cannot short circuit a magnetic circuit and needs to be separated, so that a gap is reserved between every two adjacent core frames.
For the optimization of the technical scheme of the invention, the magnet is stuck on the inner surface of the rotor yoke part by adopting magnetic steel glue.
For the technical scheme of the invention, the connecting end cover and the assembling sleeve are of an integrated structure.
For the optimization of the technical scheme of the invention, a heat dissipation and ventilation notch is arranged on the barrel bottom of the rotor yoke.
In the technical scheme of the invention, a dustproof structure is arranged between the rotor yoke and the connecting end cover, the dustproof structure is a labyrinth groove arranged on the end face of the connecting end cover, and a barrel opening of the rotor yoke is inserted into the labyrinth groove to form labyrinth dustproof.
Compared with the prior art, the invention has the beneficial effects that:
The permanent magnet motor is designed on the mounting structure of the winding on the stator, and a composite magnetic circuit structure is provided, so that the torque density and the power density of the permanent magnet motor are improved, the weight is reduced, the stator assembly is subjected to a vacuum encapsulation scheme, the heat dissipation effect is improved, and the high torque density is achieved.
1. And a concentrated winding mode is adopted, so that copper materials are saved, and copper consumption is greatly reduced.
2. The horseshoe iron core is adopted, and the iron core is formed by laminating or bonding silicon steel sheets, so that the consumption of silicon steel sheet materials is reduced.
3. The horseshoe-shaped iron core is adopted, one end of the horseshoe-shaped iron core is provided with the N pole, the other end of the horseshoe-shaped iron core is provided with the S pole, and the two ends of the horseshoe-shaped iron core are wound with coils, so that the horseshoe-shaped iron core has double magnetism gathering effect and high utilization rate.
4. The horseshoe iron core is adopted, so that the stator loss is low, the magnetic circuit is greatly shortened, and the loss is reduced.
5. The horseshoe iron core utilizes both axial magnetic circuit and radial magnetic circuit, and belongs to a hybrid magnetic circuit permanent magnet motor.
6. The horseshoe iron core can be made into multipole, is suitable for application in low-speed high-torque occasions, and can greatly reduce the weight of the whole machine.
Drawings
Fig. 1 is a schematic structural view of a horseshoe-shaped stator core.
Fig. 2 is a schematic diagram of an analog motor forming an axial flux shunt.
Fig. 3 is a schematic diagram of a simulated motor forming radial flux shunts.
Fig. 4 is a schematic diagram of adjacent two horseshoe-shaped stator core windings energized to form an N-S/N-S stator pole.
FIG. 5 is a schematic diagram of two pairs of N-S/N-S poles of FIG. 4 corresponding to adjacent magnets N-S/N-S on the rotor.
Fig. 6 is a schematic view of the core frame forming a ring.
Fig. 7 is an overall schematic diagram of an outer rotor horseshoe-type winding permanent magnet motor.
Fig. 8 is a cross-sectional view of fig. 7.
Fig. 9 is an assembled schematic view of the stator unit and the rotor unit.
Fig. 10 is a perspective view of fig. 9.
Detailed Description
In order to make the contents of the present invention more comprehensible, the present invention is further described with reference to fig. 1 to 10 and the detailed description below.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
According to the horseshoe-shaped stator winding of the outer rotor horseshoe-shaped winding permanent magnet motor shown in fig. 1, 2 and 3, the magnetic field at one end of the U-shaped winding is N, the magnetic field at the other end is necessarily the S pole principle, and the principle is fully utilized, so that the two ends of the N-S poles are simultaneously placed in the air gap magnetic field. Therefore, the motor forms an axial magnetic flux shunt and a radial magnetic flux shunt, the magnetic field effect is greatly utilized, the conventional motor stator yoke part is not needed, and the torque density and the power density of the permanent magnet motor are increased.
According to fig. 4 and 5, each winding adjacent to the stator is energized at a time to form N-S/N-S stator poles, and the two pairs of N-S/N-S poles are aligned with adjacent magnets N-S/N-S on the rotor.
The N horseshoe-shaped stator cores are fixed on the iron core frame, and as each horseshoe-shaped stator core is an independent unit and is fixed on the iron core frame, the frames are made of magnetic conductive materials and have magnetism gathering effect, and a magnetic circuit cannot be short-circuited between each frame N-S, and the frames need to be separated, as shown in fig. 2, 3 and 6.
If 18 horseshoe-shaped stator cores are adopted, the rotor is formed by splicing 16-pole magnetic steels, so that an 18U/16P-type permanent magnet motor model is formed; the invention is not limited to 18U/16P; the number of the slot pole matching of the conventional three-phase permanent magnet motor can be arbitrary, such as: 9U/8P;12U/10P;36U/24P;36U/32P, etc., and will not be described in detail; meanwhile, the invention is not limited to three phases, and is also applicable to permanent magnet motors with five phases, six phases and nine phases. The specific summary is described herein using an 18U/16P type configuration for ease of illustration only.
Example 1
As shown in fig. 7,8,9 and 10, in embodiment 1, 18 horseshoe-shaped stator cores and rotors are formed by splicing 16-pole magnetic steels, so as to form an 18U/16P-type permanent magnet motor model, and detailed description is given.
As shown in fig. 7 and 8, an outer rotor horseshoe-type winding permanent magnet motor comprises a stator unit, a rotor unit and a housing end cover 4, wherein the stator unit is connected with the housing end cover 4, the stator unit is installed in the rotor unit, a motor shaft 8 is connected with the rotor unit, and the motor shaft 8 is rotatably connected with the housing end cover 4.
As shown in fig. 9 and 10, the stator unit is an annular stator surrounded by a plurality of horseshoe-shaped stators 1, the openings of all the horseshoe-shaped stators 1 face outwards, the horseshoe-shaped stators 1 are stacked by silicon steel sheets, stator windings 2 are wound on two legs of the horseshoe-shaped stators 1 to form a horseshoe-shaped stator core, and a magnetic field at one end of a U-shaped winding of the horseshoe-shaped stator core is defined as an N pole, and a magnetic field at the other end of the U-shaped winding is defined as an S pole; the end part of each leg of the horseshoe-shaped stator core is fixed with an iron core frame 3, and a gap is reserved between the two iron core frames 3 on each horseshoe-shaped stator core; a gap is left between the adjacent two core frames 3 on each adjacent two horseshoe-shaped stator cores constituting the annular stator, and the N poles and S poles of each adjacent two horseshoe-shaped stator cores constituting the annular stator are alternately arranged.
As shown in fig. 8, the casing end cover 4 comprises a connecting end cover and an assembling sleeve, and the assembling sleeve is vertically arranged on the plate surface of the connecting end cover; the assembly sleeve is inserted into the annular stator, the stator unit and the shell end cover 4 are vacuum cast by epoxy resin, and are solidified and molded, so that the stator core, the winding and the shell end cover 4 form an integral stator assembly. The connecting end cover and the assembling sleeve of the shell end cover 4 are of an integrated structure.
As shown in fig. 8, the motor shaft 8 is inserted into the fitting sleeve and rotatably connected to the fitting sleeve through two bearings 7, and one end of the motor shaft 8 protrudes out of the fitting sleeve.
In embodiment 1, the core frame 3 is a square plate, and holes for inserting the legs of the horseshoe-shaped stator core are formed in the square plate. The iron core frame 3 is made of magnetic conduction materials and is made of a No. 45 steel plate or a Q235 steel plate or a Q195 steel plate. Because each horseshoe-shaped stator core is an independent unit, the horseshoe-shaped stator core is fixed on the core frame, the core frames are made of magnetic conductive materials and have magnetism gathering effect, and each core frame N-S cannot short circuit a magnetic circuit and needs to be separated, so that a gap is reserved between every two adjacent core frames.
In the embodiment 1, 18 horseshoe-shaped stator cores and magnetic collecting plate frames are independent, 18 horseshoe-shaped stator cores and magnetic collecting plate frames are assembled around a shell end cover 4 to form a circumferential stator assembly, and a stator unit and the shell end cover 4 are vacuum-cast by adopting epoxy resin with high heat conductivity and high insulation performance and are solidified and molded, so that the stator cores, windings and the shell end cover 4 form a whole stator assembly;
the epoxy resin with high heat conductivity and high insulating property is an outsourcing part, and the two-component epoxy footnote mixture of the Elantas 5262 produced and sold by Ai Lunda s in Germany is preferably adopted in the embodiment, and the horseshoe-shaped stator iron core, the winding and the shell end cover 4 are integrated to form the stator assembly.
As shown in fig. 8, 9 and 10, the rotor unit includes a rotor yoke 5 and a plurality of magnets 6 attached to an inner surface of the rotor yoke 5, the magnets 6 are provided in two rings corresponding to the ring-shaped stator, and the magnets 6 located on the same circumference are alternately arranged in N-pole and S-pole; gaps are reserved between adjacent magnets 6 positioned on the same circumference, and the number of the magnets 6 and the number of the U-shaped windings are set according to the number of the slot poles of any conventional permanent magnet motor; the rotor yoke 5 is barrel-shaped, a connecting flange is arranged at the center of the barrel bottom in the rotor yoke 5, the rotor yoke 5 is sleeved outside the stator unit, and the connecting flange is connected with the end part of the motor shaft 8.
The magnet 6 is stuck on the inner surface of the rotor yoke 5 by magnetic steel glue. The magnetic steel glue is an outsourcing part, and preferably, the magnetic steel glue is the le tai 326.
As shown in fig. 7, a heat dissipation and ventilation notch is formed in the tub bottom of the rotor yoke 5.
In embodiment 1, if the working condition environment is good, the outer rotor horseshoe-shaped winding permanent magnet motor is free of dust and powder, the motor can be opened, a dustproof structure is not required to be added, and the open type heat dissipation is good. If the working condition requires water and dust prevention, the device needs to be made into a fully closed type.
In general, in unmanned aerial vehicles, an external rotor motor requires a large short-time power and is not used for a long time, so that the motor is made into an open structure. And in industrial applications, generally, are of closed construction.
In embodiment 1, a dustproof structure is provided between the rotor yoke 5 and the connection end cover, the dustproof structure is a labyrinth groove provided on the end face of the connection end cover, and the bung hole of the rotor yoke 5 is inserted into the labyrinth groove to form labyrinth dustproof.
The present invention is not related in part to or implemented in part by the prior art.
While the invention has been described in the context of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and variations apparent to those skilled in the art.
Claims (7)
1. The utility model provides an external rotor horseshoe-shaped winding permanent magnet machine, includes stator unit and rotor unit, its characterized in that: the motor is characterized by further comprising a shell end cover (4), wherein the stator unit is connected with the shell end cover (4), the stator unit is arranged in the rotor unit, a motor shaft (8) is connected with the rotor unit, and the motor shaft (8) is rotationally connected with the shell end cover (4);
The stator unit is an annular stator surrounded by a plurality of horseshoe-shaped stators (1), the openings of all the horseshoe-shaped stators (1) face outwards, the horseshoe-shaped stators (1) are formed by stacking silicon steel sheets, stator windings (2) are wound on two legs of the horseshoe-shaped stators (1) to form a horseshoe-shaped stator core, a magnetic field at one end of a U-shaped winding of the horseshoe-shaped stator core is defined as an N pole, and a magnetic field at the other end of the U-shaped winding of the horseshoe-shaped stator core is defined as an S pole; an iron core frame (3) is fixed at the end part of each leg of the horseshoe-shaped stator core, and a gap is reserved between the two iron core frames (3) on each horseshoe-shaped stator core; gaps are reserved between two adjacent iron core frames (3) on every two adjacent horseshoe-shaped stator cores forming the annular stator, and N poles and S poles of every two adjacent horseshoe-shaped stator cores forming the annular stator are alternately arranged;
The shell end cover (4) comprises a connecting end cover and an assembling sleeve, and the assembling sleeve is vertically arranged on the plate surface of the connecting end cover; the assembly sleeve is inserted into the annular stator, the stator unit and the shell end cover (4) are subjected to vacuum casting by adopting epoxy resin, and are solidified and molded, so that the stator core, the winding and the shell end cover (4) form an integral stator assembly;
the motor shaft (8) is inserted into the assembly sleeve and is rotationally connected with the assembly sleeve through at least one bearing, and one end of the motor shaft (8) protrudes out of the assembly sleeve;
The rotor unit comprises a rotor yoke (5) and a plurality of magnets (6) adhered to the inner surface of the rotor yoke (5), wherein the magnets (6) are arranged in two rings corresponding to the ring-shaped stator, and the magnets (6) positioned on the same circumference are alternately arranged with N poles and S poles; gaps are reserved between adjacent magnets (6) positioned on the same circumference, and the number of the magnets (6) and the number of the U-shaped windings are set according to the number of the slot pole matches of any conventional permanent magnet motor; the rotor yoke (5) is barrel-shaped, a connecting flange is arranged at the center position of the barrel bottom in the rotor yoke (5), the rotor yoke (5) is sleeved outside the stator unit, and the connecting flange is connected with the end part of the motor shaft (8).
2. The outer rotor horseshoe-type winding permanent magnet machine of claim 1, wherein: the iron core frame (3) is a square plate, and holes for inserting the legs of the horseshoe-shaped stator iron core are formed in the square plate.
3. The outer rotor horseshoe-type winding permanent magnet machine of claim 2, wherein: the iron core frame (3) is made of magnetic conduction materials and is made of a No. 45 steel plate or a Q235 steel plate or a Q195 steel plate.
4. The outer rotor horseshoe-type winding permanent magnet machine of claim 1, wherein: the magnet (6) is stuck on the surface of the rotor yoke part (5) by magnetic steel glue.
5. The outer rotor horseshoe-type winding permanent magnet machine of claim 1, wherein: the connecting end cover and the assembling sleeve are of an integrated structure.
6. The outer rotor horseshoe-type winding permanent magnet machine of claim 1, wherein: a heat dissipation and ventilation notch is arranged on the barrel bottom of the rotor yoke part (5).
7. The outer rotor horseshoe-type winding permanent magnet machine of claim 1, wherein: a dustproof structure is arranged between the rotor yoke (5) and the connecting end cover, the dustproof structure is a labyrinth groove arranged on the end face of the connecting end cover, and a bung hole of the rotor yoke (5) is inserted into the labyrinth groove to form labyrinth dustproof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910922833.6A CN110535316B (en) | 2019-09-27 | 2019-09-27 | Outer rotor horseshoe-shaped winding permanent magnet motor |
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| CN201910922833.6A CN110535316B (en) | 2019-09-27 | 2019-09-27 | Outer rotor horseshoe-shaped winding permanent magnet motor |
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| CN110535316A CN110535316A (en) | 2019-12-03 |
| CN110535316B true CN110535316B (en) | 2024-06-25 |
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| CN210518076U (en) * | 2019-09-27 | 2020-05-12 | 南京合工动力科技有限公司 | Outer rotor horseshoe type winding permanent magnet motor |
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| JP2005510991A (en) * | 2001-04-30 | 2005-04-21 | シュヴェリッケ−ラドベルスキー，ウーテ | Electric synchronous machine with annular winding |
| CN102624183A (en) * | 2012-03-27 | 2012-08-01 | 山东大学 | Permanent-magnet axial-magnetic-field brushless motor and assembling method thereof |
| JP6687521B2 (en) * | 2013-11-20 | 2020-04-22 | 戴珊珊ＤＡＩ， Ｓｈａｎｓｈａｎ | AC permanent magnet switch reluctance motor |
| DE102015117081A1 (en) * | 2015-10-07 | 2017-04-13 | Minebea Co., Ltd. | Rotor body for an electric motor and synchronous reluctance motor |
| CN105471216A (en) * | 2015-12-31 | 2016-04-06 | 天津飞旋科技研发有限公司 | Hall permanent magnet brushless high-speed direct current motor for vacuum molecular pump |
| CN106169850A (en) * | 2016-07-19 | 2016-11-30 | 合肥学院 | Bipolarity electrical excitation transverse magnetic flux synchronous motor |
| CN110120729A (en) * | 2018-02-06 | 2019-08-13 | 上海富田电气技术有限公司 | A kind of radial magnetic field stator with no yoke Double-rotor disc permanent magnet synchronous motor |
| CN108631531B (en) * | 2018-04-25 | 2020-03-31 | 江苏大学 | Hybrid excitation switch reluctance hub motor for electric automobile |
| CN109861484A (en) * | 2019-04-08 | 2019-06-07 | 合肥学院 | Stator permanent magnetic type bipolarity magneticfocusing Transverse Flux Permanent Magnetic Synchronous Machine |
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| CN210518076U (en) * | 2019-09-27 | 2020-05-12 | 南京合工动力科技有限公司 | Outer rotor horseshoe type winding permanent magnet motor |
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