CN105846629A - Radial magnetizing vacuum cleaning motor - Google Patents
Radial magnetizing vacuum cleaning motor Download PDFInfo
- Publication number
- CN105846629A CN105846629A CN201610182736.4A CN201610182736A CN105846629A CN 105846629 A CN105846629 A CN 105846629A CN 201610182736 A CN201610182736 A CN 201610182736A CN 105846629 A CN105846629 A CN 105846629A
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- CN
- China
- Prior art keywords
- rotor
- motor
- rotor yoke
- yoke
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- 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
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- 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
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends 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
Abstract
The invention provides a radial magnetizing vacuum cleaning motor, and belongs to the technical field of vacuum cleaning motor. A first motor rotor yoke and a second motor rotor yoke form a set, the outer side of the first motor rotor yoke and the outer side of the second motor rotor yoke are each provided with a rotor body retainer ring, and a rotor spacer ring is arranged between adjacent two rotor body retainer rings of the two sets of the motor rotor yokes. A rotor shaft snap spring is arranged on the rear portion of a rotor shaft of the motor, motor rotor yoke positioning pins are arranged on the third motor rotor yoke, the fourth motor rotor yoke, the first motor rotor yoke and the second motor rotor yoke, and rotor permanent magnet embedding ports are formed in the third motor rotor yoke, the fourth motor rotor yoke, the first motor rotor yoke and the second motor rotor yoke. Rotor permanent magnets are embedded in the rotor permanent magnet embedding ports. A bearing spring pad is arranged between a ceramic deep groove ball bearing at the rear end of the motor rotor shaft and a rear end cap of the motor, stator punching sheets are arranged between the motor rotor yokes and a motor casing, and stator punching sheet rivets are arranged on the stator punching sheets. The radial magnetizing vacuum cleaning motor is especially applicable to the aerospace field.
Description
Technical field
The present invention relates to the vacuum cleaning motor of a kind of radial magnetizing, belong to vacuum cleaning technical field of motors.
Background technology
Vacuum cleaning motor refers to work under vacuum and can meet the motor of high-cleanness, high requirement.
Vacuum cleaning motor mainly meets the requirement of two aspects, i.e. vacuum and clean two aspects.Vacuum is primarily referred to as electricity
The environment that uses of machine to meet certain vacuum, and motor can normally work in the present context, and motor itself is not to vacuum
Environment impacts.And cleaning here refers in the environment of vacuum, it is necessary to meet certain purity requirements, except dirt
Outside angstrom, also include organic molecule etc..Motor does not interferes with the cleanliness factor of environment during normal use, additionally it is possible to just meeting
Normal job requirement.
So the use of vacuum cleaning motor requires to refer to energy steady operation under ultra-clean, high vacuum environment, in work
During temperature rise is little, cleanliness factor is high, venting rate is low, precision is high, stability is strong, and motor itself will not be to vacuum and clean ring
Border impacts.
At present, both at home and abroad unified call is not had for " vacuum cleaning motor ", but about the research of vacuum motor
Have a lot.
Vacuum motor is Application comparison engineering goods widely in recent years, and its principle and vacuum pump are similar, mainly
Some in structure design are different.The Main way studied in terms of vacuum technique both at home and abroad concentrates on motor, pump in vacuum
Static properties under environment；Motor temperature rise control in the course of the work；The structure of motor internal includes the high pressure leaching of enamel-covered wire
Stain technology；The surface quality of motor and job stability；The aspects such as the selection of vacuum material.
In terms of cleaning, the research done both at home and abroad is concentrated mainly on the application in terms of air purity technique, not very
Altitude is discussed the requirement in terms of cleaning.
Because under vacuum, lack critically important a kind of heat transfer type convection current, so general motor exists
Under vacuum condition, generally there is the problems such as thermal diffusivity is bad.Vacuum cleaning motor is exactly to cleaning on the basis of vacuum motor
Degree has had further requirement.Here purity requirements, in addition to the granules such as gas to be met, dust, also has volatilization
The organic molecules such as the little molecule of oils and fats.
Ultraprecision Machining is merged in specific national scientific development project-inertial confinement laser fusion device (ICF), accurate micro-
Actuation techniques and clean manufacturing technology, need to break through under ultra-clean, fine vacuum and strong electromagnetic radiation, the function of ultraprecise ray machine equipment
Design, clean precision manufactureing and be conveniently detached the difficult problems such as technology.Wherein, vacuum cleaning motor is as the weight in whole engineering project
Want parts, the progress of whole project is played vital effect.High-performance vacuum cleaning motor need to be in ultra-clean, fine vacuum
Carrying out steady operation under environment, range of application is fairly widespread.High performance vacuum cleaning motor temperature rise in the course of the work is little,
Cleanliness factor is high, venting rate is low, precision is high, stability is strong, it is thus possible to the most independently realize specific national scientific development project
Construction task.For current domestic and international market, the Phytron vacuum motor application of Germany is quite extensively and Technical comparing becomes
Ripe, but the costliness that cost is suitable, and the vacuum motor of domestic production the most truly reaches the standard of vacuum products, phase
Close result of study at structure optimization, low-temperature-rise, high stability and cleanliness factor and external ratio also a certain distance, especially strong spoke
Penetrate, the design of motor under the working environment of fine vacuum and ultra-clean and use characteristic correlational study little.And existing very
The requirement of high-cleanness, high seldom followed by empty motor, and has the occasion of purity requirements to be generally not for vacuum environment, high-cleanness
The most do not simultaneously take account of with fine vacuum.
To sum up, vacuum cleaning motor is a kind of being suitable at ultra-clean, the next-generation drive of high vacuum environment needs.Cause
Structure for motor under the conditions of fine vacuum, ultra-clean design and Performance Characteristics research seldom, but the Strategic Demand of country and
The demand that vacuum cleaning motor is done driver by multinomial major scientific projects is very big, for laser-driven inertial confinement fusion matching requirements
Compact conformation, low-temperature-rise, ultra-clean, the use characteristic of high vacuum environment, develop size little, intensity is high, ultra-clean, low-temperature-rise
Vacuum cleaning motor, it appears extremely urgent.
Summary of the invention
The invention aims to solve the problem that above-mentioned prior art exists, i.e. for laser-driven inertial confinement fusion device
The compact conformation of requirement, low-temperature-rise, ultra-clean, the use characteristic of high vacuum environment, develop size little, intensity is high, and ultra-clean is low
The vacuum cleaning motor of temperature rise, it appears extremely urgent problem.And then the vacuum cleaning motor of a kind of radial magnetizing is provided.
It is an object of the invention to be achieved through the following technical solutions:
A kind of vacuum cleaning motor of radial magnetizing, including: before motor case, stator punching rivet, stator punching, motor
End cap, back end cover for motor, carriage spring pad, rotor axis of electric, rotor yoke three, rotor yoke four, rotor yoke are fixed
Position pin, rotor permanent magnet, rotor block back-up ring, rotor intervals ring, rotor yoke one, rotor yoke two, armature spindle jump ring and
Pottery deep groove ball bearing, described motor front end cover is arranged on the front end of motor case, and back end cover for motor is arranged on motor case
Rear end, the main part of rotor axis of electric is arranged in motor case, between rear end and the back end cover for motor of rotor axis of electric by
One ceramic deep groove ball bearing is rotationally connected, by another pottery deep-groove ball between front end and the motor front end cover of rotor axis of electric
Bearing is rotationally connected, and the rotor axis of electric between motor front end cover and back end cover for motor is provided with two groups of rotor yokes, electricity
Machine rotor yoke three and rotor yoke four are one group, and the outside of rotor yoke three and the outside of rotor yoke four are equipped with one
Individual rotor block back-up ring, rotor yoke one and rotor yoke two are one group, the outside of rotor yoke one and rotor yoke
The outside of two is equipped with a rotor block back-up ring, is provided with between rotor between two rotor block back-up rings that two groups of rotor yokes are adjacent
Spacer ring, the rear portion of rotor axis of electric is provided with armature spindle jump ring, rotor yoke three, rotor yoke four, rotor yoke one and
Rotor yoke alignment pin, rotor yoke three, rotor yoke four, rotor yoke one and it is equipped with on rotor yoke two
It is evenly equipped with the embedding mouth of rotor permanent magnet on rotor yoke two, in the embedding mouth of rotor permanent magnet, is provided with rotor permanent magnet, rotor axis of electric
It is provided with carriage spring pad between ceramic deep groove ball bearing and the back end cover for motor of rear end, sets between rotor yoke and motor case
Stator punching, stator punching is had to be provided with stator punching rivet.
Stator punching material is stalloy, and thickness is 0.35mm, and totally 120 laminate and are made, and are connected in by rivet
In casing.
The material of rotor axis of electric is No. 45 steel, rotor axis of electric and rotor yoke, rotor block back-up ring, rotor intervals ring
Linked together by interference fit.
Described rotor permanent magnet is made up of samarium-cobalt alloy magnetic material.
The present invention has following technical effect that
Using ceramic bearing, material itself has high temperature resistant degree 1200 DEG C, and unique oil-free self lubrication characteristic, can be full
Foot use requirement in fine vacuum and ultra clean environment.High temperature resistant bearing is not produced because of the temperature difference between 100 DEG C～800 DEG C
The expansion caused.And oil-free self lubrication can be prevented effectively from the organic contamination using grease etc. to produce environment.
Different from biphase HB type motor, rotor permanent magnet uses unique radial magnetizing, samarium-cobalt alloy magnetic material
Magnetic property is high, and under the special environment such as high temperature, fine vacuum, performance is good, and with multiple magnets separately, heating can be avoided serious, profit
In heat radiation.
Motor all parts connects by the way of cooperation adds spot welding, uses machining and assembly method to ensure connection
Reliability, so the machining accuracy controlling each part is the most important.Avoid using cementing mode, be possible to prevent to bring into organic
Pollute, the use requirement under high-cleanness environment can be met.
Proposing the concept of vacuum cleaning motor, and propose design, the product designed can meet hundred grades
Clean environment requirement, vacuum reaches 10-4Pa, uses in the environment using temperature to be-20 DEG C～+200 DEG C, can meet Gao Zhen
Empty, the use environment of ultra-clean.
Present invention is particularly suitable for aerospace field.
Accompanying drawing explanation
Fig. 1 is the overall structure profile of the vacuum cleaning motor of radial magnetizing of the present invention.
Fig. 2 is the C direction view of Fig. 1.
Fig. 3 is the structural representation of rotor block.
Fig. 4 is the D direction view of Fig. 3.
Fig. 5 is the structural representation of rotor yoke.
Fig. 6 is the E-E sectional view of Fig. 5.
Fig. 7 is the attachment structure schematic diagram of motor case, stator punching and stator punching rivet.
Fig. 8 is the F-F sectional view of Fig. 7.
Fig. 9 is the structural representation of rotor permanent magnet.
Figure 10 is the attachment structure schematic diagram of winding.
Reference in figure, 1 is motor case, and 2 is stator punching rivet, and 3 is stator punching, and 4 is motor front end cover,
5 is back end cover for motor, and 6 is carriage spring pad, and 7 is rotor axis of electric, and 8 is rotor yoke three, and 9 is rotor yoke four, 10
For rotor yoke alignment pin, 11 is rotor permanent magnet, and 12 is rotor block back-up ring, and 13 is rotor intervals ring, and 14 is rotor
Yoke one, 15 is rotor yoke two, and 16 is armature spindle jump ring, and 17 is pottery deep groove ball bearing, and 18 is the embedding mouth of rotor permanent magnet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail: the present embodiment with technical solution of the present invention is being
Implement under premise, give detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
As shown in Fig. 1～Fig. 9, the vacuum cleaning motor of a kind of radial magnetizing involved by the present embodiment, including: motor machine
Shell 1, stator punching rivet 2, stator punching 3, motor front end cover 4, back end cover for motor 5, carriage spring pad 6, rotor axis of electric 7,
Rotor yoke 38, rotor yoke 49, rotor yoke alignment pin 10, rotor permanent magnet 11, rotor block back-up ring 12, rotor
Spacer ring 13, rotor yoke 1, rotor yoke 2 15, armature spindle jump ring 16 and pottery deep groove ball bearing 17, described electricity
Machine drive end bearing bracket 4 is arranged on the front end of motor case 1, and back end cover for motor 5 is arranged on the rear end of motor case 1, rotor axis of electric 7
Main part is arranged in motor case 1, by a ceramic deep-groove ball between rear end and the back end cover for motor 5 of rotor axis of electric 7
Bearing 17 is rotationally connected, and is rotated by another pottery deep groove ball bearing 17 between front end and the motor front end cover 4 of rotor axis of electric 7
Connect, the rotor axis of electric 7 between motor front end cover 4 and back end cover for motor 5 is provided with two groups of rotor yokes, rotor
Yoke 38 and rotor yoke 49 are one group, and the outside of rotor yoke 38 and the outside of rotor yoke 49 are equipped with one
Rotor block back-up ring 12, rotor yoke 1 and rotor yoke 2 15 are one group, the outside of rotor yoke 1 and motor
The outside of rotor yoke 2 15 is equipped with a rotor block back-up ring 12, adjacent two the rotor block back-up rings 12 of two groups of rotor yokes it
Between be provided with rotor intervals ring 13, the rear portion of rotor axis of electric 7 is provided with armature spindle jump ring 16, rotor yoke 38, rotor yoke
49, it is equipped with rotor yoke alignment pin 10, rotor yoke 38, electricity on rotor yoke 1 and rotor yoke 2 15
The embedding mouth of rotor permanent magnet 18, rotor permanent magnet it is evenly equipped with on machine rotor yoke 49, rotor yoke 1 and rotor yoke 2 15
It is provided with rotor permanent magnet 11 in embedding mouth 18, sets between ceramic deep groove ball bearing 17 and the back end cover for motor 5 of rotor axis of electric 7 rear end
Having carriage spring pad 6, be provided with stator punching 3 between rotor yoke and motor case 1, stator punching 3 is provided with stator punching
Rivet 2.
Each 1 of the bearing front and back end of the present embodiment, is connected with front and rear cover respectively, uses ceramic bearing, mainly considers
To heat dissipation problem under vacuum.Rotor yoke structure as shown in Figure 1, Figure 3, has four i.e. two right, and material is electricity
Work pure iron, a pair rotor yoke one disk of composition is also linked together by rotor permanent magnet, and the tooth of two disks staggers
1/2 tooth pitch is installed, and rotor yoke alignment pin plays the effect of location, and centre stays the interval of 2mm for dispelling the heat.Often save motor
50 teeth of rotor yoke, step angle is 1.8 °.In order to increase torque, the rotor yoke pair that the most uniform two joints are identical, centre rotor
Separately, its material is copper to spacer ring, also plays thermolysis simultaneously.Shaft end ring is for the axial location of rotor yoke, simultaneously
Also thermolysis is played.Rotor permanent magnet uses samarium-cobalt alloy magnetic material, and magnetic property is high, at the special environment such as high temperature, fine vacuum
Lower performance is good.The rotor block of a pair connection uses radial magnetizing, and magnetizing direction is contrary, eight, every limit, two each 16 of joints, is inserted in
In rotor yoke.A rotor's check ring has four altogether, and material is aluminium alloy, for rotor yoke and the axial location of permanent magnet, also rises simultaneously
To thermolysis.The material of rotor axis of electric is No. 45 steel, between rotor axis of electric and rotor yoke, rotor block back-up ring, rotor
Spacer ring is linked together by interference fit.
As shown in Figure 7, Figure 8, the stator corresponding with rotor tooth, main pole internal diameter has identical with rotor tooth pitch stator component
Little tooth, interacts at air gap with the magnetic flux of rotor tooth, produces electromagnetic torque, and its air gap is 0.1mm.Stator component mainly by
Stator punching, motor case etc. form.Wherein stator punching is as it is shown in fig. 7, stator punching material is stalloy, and thickness is
0.35mm, totally 120 laminate and are made, and are connected in casing by rivet.
Winding totally eight coils, each coil 32 circle, use high temperature resistant vacuum environment enamel-covered wire, line footpath is 0.5mm (band paint
Skin).
Selecting motor material when, the venting rate of selected material is little, it is necessary to select to meet what cleaning required
Vacuum material, and in order to prevent heating in high vacuum conditions, the heat conductivity of material is good.So motor each several part selects
Copper, aluminium alloy, rustless steel, high temperature resistant vacuum environment enamel-covered wire etc., can meet use requirement.In order to avoid producing solid because of abrasion
Body small particles of pollution, utilizes plasma immersion ion implantation technique, so for important surface surfaces such as (rotate) contacts
Material surface hardness can be increased, improve surface abrasion resistance, the most not change surface roughness simultaneously, high-cleanness environment can be met
Under use.
Use the structure designs such as perforate, thermal symmetry, Multiple level, thermal expansion can be effectively reduced, beneficially the heat radiation of motor.
The above, the only present invention preferably detailed description of the invention, these detailed description of the invention are all based on the present invention
Different implementations under general idea, and protection scope of the present invention is not limited thereto, any are familiar with the art
Technical staff in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should contain the present invention's
Within protection domain.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. the vacuum cleaning motor of a radial magnetizing, it is characterised in that including: motor case (1), stator punching rivet (2),
Stator punching (3), motor front end cover (4), back end cover for motor (5), carriage spring pad (6), rotor axis of electric (7), rotor
Yoke three (8), rotor yoke four (9), rotor yoke alignment pin (10), rotor permanent magnet (11), rotor block back-up ring (12), turn
Sub-spacer ring (13), rotor yoke one (14), rotor yoke two (15), armature spindle jump ring (16) and pottery deep groove ball bearing
(17), described motor front end cover (4) is arranged on the front end of motor case (1), and back end cover for motor (5) is arranged on motor case (1)
Rear end, in the main part of rotor axis of electric (7) is arranged on motor case (1), after the rear end of rotor axis of electric (7) and motor
It is rotationally connected by a ceramic deep groove ball bearing (17) between end cap (5), the front end of rotor axis of electric (7) and motor front end cover
(4) it is rotationally connected, between motor front end cover (4) and back end cover for motor (5) by another pottery deep groove ball bearing (17) between
Being provided with two groups of rotor yokes, rotor yoke three (8) and rotor yoke four (9) on rotor axis of electric (7) is one group, electricity
The outside of machine rotor yoke three (8) and the outside of rotor yoke four (9) are equipped with a rotor block back-up ring (12), rotor yoke
One (14) and rotor yoke two (15) be one group, the outside of rotor yoke one (14) and the outside of rotor yoke two (15)
It is equipped with a rotor block back-up ring (12), is provided with between rotor between two rotor block back-up rings (12) that two groups of rotor yokes are adjacent
Spacer ring (13), the rear portion of rotor axis of electric (7) is provided with armature spindle jump ring (16), rotor yoke three (8), rotor yoke four
(9), it is equipped with rotor yoke alignment pin (10), rotor yoke on rotor yoke one (14) and rotor yoke two (15)
Three (8), it is evenly equipped with rotor permanent magnet on rotor yoke four (9), rotor yoke one (14) and rotor yoke two (15) embedding
Mouth (18), is provided with rotor permanent magnet (11), the ceramic deep-groove ball axle of rotor axis of electric (7) rear end in the embedding mouth of rotor permanent magnet (18)
Holding and be provided with carriage spring pad (6) between (17) and back end cover for motor (5), it is fixed to be provided with between rotor yoke and motor case (1)
Sub-punching (3), stator punching (3) is provided with stator punching rivet (2).
The vacuum cleaning motor of radial magnetizing the most according to claim 1, it is characterised in that stator punching material is silicon steel
Sheet, thickness is 0.35mm, and totally 120 laminate and are made, and are connected in casing by rivet.
The vacuum cleaning motor of radial magnetizing the most according to claim 1, it is characterised in that the material of rotor axis of electric is
No. 45 steel, rotor axis of electric is linked together by interference fit with rotor yoke, rotor block back-up ring, rotor intervals ring.
The vacuum cleaning motor of radial magnetizing the most according to claim 1, it is characterised in that described rotor permanent magnet is by samarium
Cobalt alloy magnetic material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182736.4A CN105846629B (en) | 2016-03-28 | 2016-03-28 | A kind of vacuum cleaning motor of radial magnetizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182736.4A CN105846629B (en) | 2016-03-28 | 2016-03-28 | A kind of vacuum cleaning motor of radial magnetizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846629A true CN105846629A (en) | 2016-08-10 |
| CN105846629B CN105846629B (en) | 2018-09-07 |
Family
ID=56583842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610182736.4A Active CN105846629B (en) | 2016-03-28 | 2016-03-28 | A kind of vacuum cleaning motor of radial magnetizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846629B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111566903A (en) * | 2017-12-21 | 2020-08-21 | 博泽沃尔兹堡汽车零部件欧洲两合公司 | Rotor for an electric motor and electric motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111566903A (en) * | 2017-12-21 | 2020-08-21 | 博泽沃尔兹堡汽车零部件欧洲两合公司 | Rotor for an electric motor and electric motor |
| CN111566903B (en) * | 2017-12-21 | 2023-05-12 | 博泽沃尔兹堡汽车零部件欧洲两合公司 | Rotor for an electric motor and electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846629B (en) | 2018-09-07 |
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