CN104115381B - Electrical machine - Google Patents
Electrical machine Download PDFInfo
- Publication number
- CN104115381B CN104115381B CN201280050630.9A CN201280050630A CN104115381B CN 104115381 B CN104115381 B CN 104115381B CN 201280050630 A CN201280050630 A CN 201280050630A CN 104115381 B CN104115381 B CN 104115381B
- Authority
- CN
- China
- Prior art keywords
- rotor
- rotor coil
- coil
- motor
- brush
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
- H02K23/30—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having lap or loop windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
- H02K23/38—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings having winding or connection for improving commutation, e.g. equipotential connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
Abstract
The invention relates to a brush-commutated electrical machine (1), comprising: a rotor (6) having a number of rotor teeth (8); rotor coils (10), which each enclose one or a plurality of the rotor teeth (8); a stator arrangement having stator poles, which have at least one permanent magnet stator pole (4) formed with a permanent magnet (3) and at least one subsequent pole (5) which is not provided with a permanent magnet and are arranged in a subsequent pole arrangement; a commutator having at least one brush pair in order to make contact with a rotor coil group of rotor coils which are connected to each other, wherein in each case the entire inductance of the connected rotor coils (10) is equal to one of the rotor coil group at a first and at a second position of the rotor (6) in relation to the stator arrangement.
Description
Technical field
The present invention relates to brush-commutated motor, wherein stator have series connection pole device.Present invention relates especially to being used for
The winding diagram of the rotor of such a motor.
Background technology
Disclose brush-commutated DC motor with multiple variant forms in the prior art.Especially internal rotor starts
Machine is applied in various fields.
For example internal rotor DC motor is disclosed by document US 4,372,035 and DE 10 2,009 033 623 A1
Typical variant.These documents respectively illustrate the motor with quadrupole stator apparatus, and wherein stator poles pass through two with regard to interior
The rotary shaft of rotor opposite one another, the permanent magnet with identical polar（Permanent magnet-stator poles）With two in series connection pole device
In, be not provided with the pole shoe of permanent magnet（Series connection pole）Constitute.Advantage is such series connection pole device in principle, with respect to motor,
The quantity of permanent magnet decreases, and in described motor, each stator poles forms and has permanent magnet.
Rotor for motor explained above has rotor windings with multiple rotor coils, described rotor coil
Contacted by commutator to be energized.Winding loop implemented into by generally rotor coil, and wherein each winding loop is around two
One or more is arranged in rotor slot between rotor tooth in other words for individual or more than two rotor tooth, and by with brush
To brush spacing arrange commutator segment contact.In order to realize the quick reversal of winding loop it is also possible to pass through two
The commutator segment of individual direct neighbor makes each winding loop short circuit.In order to improve the quantity of the winding loop being energized simultaneously, permissible
It is provided with the multiple brushes pair for contacting commutator segment.Because brush has the arrangement side of the fixation with regard to permanent magnet-stator poles
Formula, these brushes always only contact the winding loop being located at same position range with regard to stator.
For the device of above-mentioned rotor coil, in rotor motion, rotor coil passes through corresponding, simultaneously after its energising
The brush of two adjacent unreal commutator segments of brushing to being short-circuited so that first/temporarily reduce based on voltage induced and produce
Electric current.Position due to brush is fixed, and above-mentioned situation always occurs in the ad-hoc location of rotor coil.So by specific
Brush always makes winding loop be short-circuited in the ad-hoc location of corresponding winding loop.That is, when winding loop exists
In specific position towards stator poles position when, brush makes this winding loop short-circuit federation.
But when using series connection pole device, the rotor that the inductance of rotor coil is disposed thereon according to respective rotor coil
Whether tooth is located in this rotor tooth be aligned permanent magnet-stator poles or the position of series connection pole changes.Be aligned series connection pole
The inductance of rotor coil is significantly greater than directed at the rotor coil of permanent magnet-stator poles based on the poorly efficient size/parameter of air-gap
Inductance.Thus when winding loop at least presses that development trend ground is main to be directed at permanent magnet-stator poles, one group of brush is to making winding
Loop short circuit, and when winding loop at least presses development trend ground main be aligned series connection pole, another group of brush is to making winding return
Short out road.
But the contact of higher inductive impact, and corresponding, connect there is higher inductance（By development trend ground
Towards series connection pole）The commutator brush of winding loop at formed be compared to make that there is relatively low inductance（By development trend ground court
To permanent magnetism magnetic pole iron）Winding loop short circuit the higher spark of commutator brush.Spark forms and promotes commutator wear.Thus
The inconsistent abrasion of brush is produced with respect to the arrangement of rotor coil, the fixed position being electrified stream based on brush.
The brush especially making the rotor coil short circuit of the rotor tooth around be aligned series connection pole thus suffers from more serious abrasion.
Due to inconsistent abrasion, asymmetric touching act is occurred on commutator, so that also occurring not
Expect that the strength occurring stimulates or noise stimulates.
Content of the invention
Thus the task of the present invention is, setting has the motor of series connection pole device, wherein reduces and avoids in other words commutating
The inconsistent abrasion of device brush.
This task is solved by the motor of series connection pole device that is according to claim 1, having stator poles.
Give other advantageous embodiments of the present invention in the dependent claims.
Brush-commutated motor is provided with according to first aspect, described motor includes：
- there is the rotor of multiple rotor tooths；
- respectively around the rotor coil of one or more rotor tooth；
- there are the stator apparatus of stator poles, described stator have at least one permanent magnet utilizing permanent magnet to constitute-
Stator poles are not provided with the series connection pole of permanent magnet with least one, and it is arranged in the device of series connection pole；
- there is the commutator of at least one brush pair, so that the rotor line that contact is made up of the rotor coil of mutually connection
Circle group,
Wherein, the overall inductance of the rotor coil group rotor coil of mutual connection of one of them is respectively the first of rotor
On position and be identical with regard to described stator apparatus in the second place.
Inventive conception is that, each contact brush of the rotor coil group with regard to stator poles in ad-hoc location is changing
To when connection identical or roughly the same inductance.This is directed not only to the inductance of the brush connection by brush pair and is related to
The rotor coil group being short-circuited during adjacent commutator segment is being brushed by each brush.Thus, it is possible to realize symmetrical contact
Behavior, so that commutator segment is worn and torn in other words the even wearing of brush.Thus can avoid due to brush or
Say that wearing and tearing of thin slice is fluctuated and generation, undesirable appearance strength stimulation or noise stimulation.
Additionally, what the described rotor coil of described rotor coil group can be combined with series, parallel or series and parallel
Mode is mutually connected.
According to a kind of embodiment, the rotor coil of rotor coil group is in the position of the described rotor with regard to described stator apparatus
There is when putting the first rotor coil of be aligned series connection pole and the second rotor coil of be aligned permanent magnet-stator poles.
The described the first rotor coil of especially described rotor coil group and described second rotor coil can have difference
Winding direction.
Additionally, the first rotor coil of described rotor coil group and the second rotor coil can be mutually wrong with a misalignment angle
Open, described misalignment angle is equivalent to angle (2k+1) * 360 °/N, wherein k=0,1 ..., N/2-1, and wherein N is equivalent to stator poles
Quantity.
Alternatively, the described the first rotor coil of described rotor coil group and described second rotor coil are with a misalignment angle
Mutually stagger, described misalignment angle is equivalent to angle (2k+1) * 360 ° of N+/- 180 °/M, wherein k=0,1 ..., N/2-1, wherein
N is equivalent to the quantity of stator poles, and M is equivalent to the quantity of rotor tooth.
Can specify, described the first rotor coil and described second rotor coil have the different numbers of turn.
It is furthermore possible to specify, described the first rotor coil and described second rotor coil are around the rotor tooth of varying number.
Brief description
Hereinafter with reference to the accompanying drawings the preferred embodiment of the present invention is described in detail.Accompanying drawing illustrates：
Fig. 1 is the schematic cross sectional view through the motor with series connection pole device；
Fig. 2 is the winding diagram of the rotor coil with two series connection, and described rotor coil is connected to adjacent commutator segment
On；
Fig. 3 is the diagram of the rotor coil group of rotor coil of two series connection, and described rotor coil is mutually wrong with regard to rotor
Open 90 °；
Fig. 4 is the diagram of the rotor coil group of rotor coil in ten pole rotors with series connection；
Fig. 5 is the showing of another kind of connection scheme of the rotor coil group of rotor coil in ten pole rotors with series connection
Figure；
Fig. 6 is the diagram of the rotor coil group of the rotor coil with series connection, the rotor coil of described series connection with commutation
Rotor coil on the opposed side of device connects；And
Fig. 7 is the diagram of the rotor coil group of the rotor coil with series connection, and the rotor coil of described series connection has difference
Winding spacing.
Specific embodiment
Fig. 1 shows motor 1（Motor) schematic cross sectional view, described motor has pole shoe 2, described
Pole shoe is provided with multiple stator poles.It is provided with inner fovea part in the inside of pole shoe 2, rotor 6 rotatably cloth in described inner fovea part
Put on axle.Stator poles are arranged so as on pole shoe 2 so that this stator poles points to the side of the direction of inner fovea part rotor 6 in other words
To.
Stator poles are configured to permanent magnet-stator poles 4 and may be constructed without the series connection pole 5 of permanent magnet 3.Pole shoe 2 preferably by
Permeability magnetic material is constituted, to construct the magnetic connection between permanent magnet-stator poles 4 and series connection pole 5 thus by pole shoe 2（Magnetic
Connect）.But quantity N of stator poles 4,5 is not limited to four, but the quantity of stator poles 4,5 can be set to arbitrarily
One even number.
Rotor 6 has the armature 7 of magnetic conduction, and described armature has multiple rotor tooths 8, has ten in the embodiment illustrated
Rotor tooth, described rotor tooth respectively by rotor windings one or more rotor coil 10 around.The axle of rotor 6 and armature 7
Carry the commutator with multiple commutator segments 11 with axially offsetting, described commutator segment is approximately equivalent to rotor tooth 8
Quantity, in the embodiment illustrated for ten.Commutator segment 11 pass through two, three or more brush 12 many in other words
Individual brush is to contact.The rotor coil of commutator segment 11 and rotor windings in the form of the winding of loop/with loop winding configuration
The rotor coil of rotor windings connects that is to say, that each commutator segment 11 passes through one or more rotor coil and two respectively
Individual adjacent commutator segment 11 connects.
Schematically show rotor coil 10 in fig. 2 to be arranged on two adjacent commutator segments 11.Although institute
In the embodiment illustrating, commutator and rotor tooth 8 are arranged conglobate, but here understands selection straight line to easily facilitate
Commutator segment 11, brush 12, rotor tooth 8 and rotor coil 10 are shown.In shown example, specifically rotor tooth 1 with
Rotor tooth 10 is adjacent, and commutator segment 1 is adjacent with commutator segment 10.
It is provided with the brush 12 of two brushes pair in shown motor 1, by described brush to applying power supply respectively
Voltage, so that the rotor coil group energising respectively for stator coil 10.The positioning fixed by the position of the brush 12 of brush, when
When it is electrified stream, region residing for rotor coil 10 is to determine in other words to be electrified the position of rotor coil 10 of stream.This
Due to generally symmetrically selecting winding diagram so that respectively rotor around one of the width of commutator segment 11 or
There is similar energising situation after the multiple movement step of person.
When fixed in direction series connection pole 5 to making by the second brush of brush centering by the first brush contrast of brush centering
When more rotor coils 10 on the rotor tooth 8 of position are energized, then when motor 1 operates, the brush 12 of the first brush pair is based on
Its higher inductance and suffer from more serious the wearing and tearing of brush 12 than the second brush pair.
Additionally, commutator segment 11 is electrically connected to each other in a proper manner, so that when corresponding brush is to sweeping thereon
Out-of-date, two adjacent commutator segments 11 make one of them energising, stator coil 10 by two commutator segments 11 respectively
Rotor coil group be short-circuited.Thus enable that the rotor coil group of stator coil 10 is short-circuited before reversal, from
And make the voltage being not necessarily referring to induct in rotor coil group apply supply voltage.Due to the arrangement fixing by brush 12
（Mode）The rotor coil group of stator coil 10 is made always to pass through corresponding brush to being short-circuited in same position, based on turning
Subcoil group depends on the inductance of position to form or the like the different abrasions equally causing brush 12 by spark.
Exclude this effect in order to reduce in other words, setting now is by brush to the rotor respectively with identical inductances
Coil group is energized, and makes the rotor coil group short circuit with identical inductances in other words by single brush.Here, such select to turn
The position of the rotor coil 10 of subcoil group is so that its wrapped rotor tooth 8 is overall equally, that is for example with respectively
Identical quantity is associated with permanent magnet-stator poles 4 and series connection pole 5.By this way, all brush 12 contact identicals are totally electric
Sense, so that the abrasion of brush 12 is substantially the same, and thus will not go out when contacting commutator segment 11 by brush 12
Now significantly, the resistance change being produced due to abrasion.
Because permanent magnet-stator poles 4 and series connection pole 5 have different magnetic poles, one or more of strings will be associated with
The winding direction of rotor coil of connection pole and the winding of the rotor coil being associated with one or more of permanent magnet-stator poles
Direction is arranged to contrary.Thus, generate in common energising as exciting magnet magnetic field, the magnetic field with different directions.
In the embodiment illustrated, the rotor coil 10 of rotor coil group is serially connected.Rotor coil group is surpassed
Cross two rotor coils 10 it is also possible to consider for the rotor coil contacting by commutator to carry out parallel connection or using series connection simultaneously
The mode that parallel connection combines.
It is furthermore possible to arrange the rotor coil 10 of Odd number for each rotor coil group, wherein must assure that, by attaching troops to a unit
In the rotor coil 10 of series connection pole 5 with the interconnection of rotor coil 10 that is associated with permanent magnet-stator poles 4 and the overall inductance that draws
Major part is produced by the rotor coil 10 being associated with series connection pole 5 and the rotor coil 10 being associated with permanent magnet-stator poles 4.When turn
Son is implemented around during the motion of stator poles certain distance, so that the rotor coil 10 being associated with series connection pole 4 before is joined now
Belong to permanent magnet-stator poles 4 and be associated with the rotor coil 10 of permanent magnet-stator poles 4 before and be associated with pole 5 of connecting now,
Inductance change should not occur under common situation.If identical rotor coil device is after rotor continues motion by other brushes
To contact, the attachment relationship that rotor coil 10 is associated with stator poles respectively is then contrary.
Preferably, the first rotor coil of the rotor coil group of the rotor coil of cooperating contact and the second rotor coil are such
It is arranged in staggering on rotor so that this first rotor coil and the second rotor coil are equivalent to series connection pole 5 and stator apparatus
Deviation between permanent magnet-stator poles 4, especially adjacent permanent magnet-stator poles 4.Above-mentioned, there is determining of four stator poles
In sub-device, deviation is equivalent to 90 °.Under common situation, deviation is equivalent to 360 °/N, and wherein N is equivalent to determining of series connection pole device
The total number of sub- pole.Generally rotor coil group, the deviation between rotor coil being associated with different types of stator poles can
To be expressed as：
(2k+1) * 360 °/N, wherein k=0,1 ..., N/2-1.
In figure 3, ten dipolar rotors are schematically shown by one of brush to accessible rotor line
The series connection figure of circle 10.By brush pair, it is energized for the rotor coil 10 connected by series connection, wherein first in rotor coil 10
The second rotor coil that rotor coil is associated with one of series connection pole 5 and rotor coil 10 is associated with being adjacent forever
Magnet-stator poles 4.Thus draw the series inductance being equivalent to different single inductance sums.
To rotor coil 10, another brush by brush centering carries out correspondingly cloth to the rotor coil group of contact
Put.By this arrangement of rotor coil 10, when rotor 6 continues rotation, series connection portion passes through the brush of another brush pair
12 are contacted, and wherein subsequently the first rotor coil 10 is associated with permanent magnet-stator poles 4 and the second rotor coil 10 is associated with
Series connection pole 5 is that is to say, that attachment relationship is contrary.Here, the overall inductance in the series connection portion of rotor coil 10 keeps constant.With
This mode, can apply the rotor coil only with identical inductances, so that being not in commutation by brush
The uneven abrasion of brush 12.
If quantity M of the rotor tooth 8 of rotor 6 not in rotor coil group arrangement rotor coil, for 360 °/
The deviation of N, then can also select one to be moved slightly away from deviation in this, for example, be used for the motor with Fig. 1 in figures 4 and 5
Ten Polar armatures of the rotor of quadrupole stator situation such.In the above case said, the calculated, rotor of rotor coil group
Deviation between coil N/M is equivalent to 2.5 rotor tooths/rotor slot.
If quantity M of rotor tooth/rotor slot can not be divided exactly by quantity N of stator poles, wire casing spacing is necessary,
The coil-span of the wherein rotor coil of series connection is corresponding to greater than 360 °/N（See Fig. 4）Or it is less than 360 °/N（See Fig. 5）.Ten
In the case of individual rotor pole, then can arrange rotor coil with 90 ° plus 180 °/M or 90 ° spacing deducting 180 °/M.So
And it is desirable that, around a rotor slot or around the rotor coil more than a rotor tooth together include accurately, be（2k
+ 1) deviation of * 360 °/N.
Figure 6 illustrates an embodiment, described embodiment is with the difference of the embodiment of Fig. 3, in armature 7
, commutator shaft the electrical connection between the rotor coil 10 of rotor coil group is implemented on opposite side.Wherein it is also shown for, the
The number of turn of one rotor coil and the second rotor coil 10 can be different.
As shown in Figure 7 it is also possible to be provided for the different winding spacing of the rotor coil 10 of described two series connection, also
It is to say, the rotor coil 10 of rotor coil group can be around the rotor slot of varying number or rotor tooth 8.
Claims (8)
1. brush-commutated motor（1）, described motor includes：
- there are multiple rotor tooths（8）Rotor（6）；
- respectively around one or more rotor tooth（8）Rotor coil（10）；
- there are the stator apparatus of stator poles, described stator has at least one and utilizes permanent magnet（3）The permanent magnet constituting-fixed
Sub- pole（4）It is not provided with the series connection pole of permanent magnet with least one（5）, it is arranged in the device of series connection pole；
- there is the commutator of at least one brush pair, so that the rotor coil that contact is made up of the rotor coil of mutually connection
Group,
Wherein, the rotor coil of the rotor coil group mutual connection of one of them（10）Overall inductance respectively in described rotor
（6）Primary importance on and the second place on be identical with regard to described stator apparatus, wherein, the rotor of described rotor coil group
Coil（10）In one of rotor coil be aligned in described primary importance series connection pole（5）, and in the described second place
Middle be aligned permanent magnet-stator poles（4）.
2. according to the motor described in claim 1（1）, the rotor coil of wherein said rotor coil group（10）With series, parallel
Or the mode that series and parallel combines mutually is connected.
3. according to the motor described in claim 1（1）, the rotor coil of wherein said rotor coil group（10）In described rotor
（6）A certain position in regard to described stator apparatus have be aligned described series connection pole（5）The first rotor coil（10）And be aligned
Described permanent magnet-stator poles（4）The second rotor coil（10）.
4. according to the motor of claim 3（1）, the first rotor coil of wherein said rotor coil group（10）With the second rotor line
Circle（10）There are different winding directions.
5. according to the motor of claim 3（1）, the first rotor coil of wherein said rotor coil group（10）With the second rotor line
Circle（10）Mutually staggered with a misalignment angle, described misalignment angle is equivalent to angle (2k+1) * 360 °/N, wherein k=0,1
..., N/2-1, wherein N is equivalent to the quantity of stator poles.
6. according to the motor of claim 3（1）, the first rotor coil of wherein said rotor coil group（10）With the second rotor line
Circle（10）Mutually staggered with a misalignment angle, described misalignment angle is equivalent to angle (2k+1) * 360 °/N 180 °/M of +/-, its
Middle k=0,1 ..., N/2-1, wherein N is equivalent to the quantity of stator poles, and M is equivalent to rotor tooth（8）Quantity.
7. according to the motor described in claim 3（1）, wherein said the first rotor coil（10）With described second rotor coil
（10）There are the different numbers of turn.
8. according to the motor described in claim 3（1）, wherein said the first rotor coil（10）With described second rotor coil
（10）Rotor tooth around varying number（8）.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011081035.8 | 2011-08-16 | ||
| DE201110081035 DE102011081035A1 (en) | 2011-08-16 | 2011-08-16 | Electric machine |
| PCT/EP2012/061811 WO2013023819A2 (en) | 2011-08-16 | 2012-06-20 | Electrical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104115381A CN104115381A (en) | 2014-10-22 |
| CN104115381B true CN104115381B (en) | 2017-02-15 |
Family
ID=46331300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280050630.9A Expired - Fee Related CN104115381B (en) | 2011-08-16 | 2012-06-20 | Electrical machine |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101846815B1 (en) |
| CN (1) | CN104115381B (en) |
| DE (1) | DE102011081035A1 (en) |
| WO (1) | WO2013023819A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9425663B2 (en) | 2012-08-17 | 2016-08-23 | Black & Decker Inc. | Distributed winding arrangement for an electric motor |
| JP6047070B2 (en) * | 2013-06-14 | 2016-12-21 | アスモ株式会社 | Armature and method for manufacturing armature |
| CN112825448B (en) * | 2019-11-21 | 2022-11-11 | 李静怡 | Series-parallel excitation direct current motor |
| KR102476318B1 (en) * | 2020-11-06 | 2022-12-13 | 디와이오토 주식회사 | Armature coil winding method of DC motor |
| CN113765278B (en) * | 2021-09-02 | 2023-02-03 | 余姚奥胜电机制造有限公司 | Four-stage motor |
| CN114629277A (en) * | 2022-02-28 | 2022-06-14 | 广东肇庆爱龙威机电有限公司 | Brush direct current motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296343A (en) * | 1979-10-05 | 1981-10-20 | Ambac Industries, Incorporated | Electric motor housing, or the like, with integral pole and methods for making same |
| CN1368783A (en) * | 2001-02-02 | 2002-09-11 | 三菱电机株式会社 | Electric rotating machine |
| CN101584104A (en) * | 2006-10-30 | 2009-11-18 | 株式会社美姿把 | Dc motor armature, dc motor and dc motor armature winding method |
| DE102009033623A1 (en) * | 2008-07-18 | 2010-01-21 | Johnson Electric S.A., La Chaux-De-Fonds | electric motor |
| CN101635494A (en) * | 2008-07-21 | 2010-01-27 | 德昌电机(深圳)有限公司 | Motor rotor and motor having same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5515426B2 (en) * | 2009-05-28 | 2014-06-11 | 日本電産株式会社 | motor |
-
2011
- 2011-08-16 DE DE201110081035 patent/DE102011081035A1/en not_active Withdrawn
-
2012
- 2012-06-20 WO PCT/EP2012/061811 patent/WO2013023819A2/en active Application Filing
- 2012-06-20 CN CN201280050630.9A patent/CN104115381B/en not_active Expired - Fee Related
- 2012-06-20 KR KR1020147006833A patent/KR101846815B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4296343A (en) * | 1979-10-05 | 1981-10-20 | Ambac Industries, Incorporated | Electric motor housing, or the like, with integral pole and methods for making same |
| CN1368783A (en) * | 2001-02-02 | 2002-09-11 | 三菱电机株式会社 | Electric rotating machine |
| CN101584104A (en) * | 2006-10-30 | 2009-11-18 | 株式会社美姿把 | Dc motor armature, dc motor and dc motor armature winding method |
| DE102009033623A1 (en) * | 2008-07-18 | 2010-01-21 | Johnson Electric S.A., La Chaux-De-Fonds | electric motor |
| CN101635494A (en) * | 2008-07-21 | 2010-01-27 | 德昌电机(深圳)有限公司 | Motor rotor and motor having same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011081035A1 (en) | 2013-02-21 |
| WO2013023819A2 (en) | 2013-02-21 |
| KR101846815B1 (en) | 2018-04-10 |
| KR20140053327A (en) | 2014-05-07 |
| WO2013023819A3 (en) | 2014-11-06 |
| CN104115381A (en) | 2014-10-22 |
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