CN108496295A - Rotor, motor and the method for manufacturing rotor - Google Patents
Rotor, motor and the method for manufacturing rotor Download PDFInfo
- Publication number
- CN108496295A CN108496295A CN201780008373.5A CN201780008373A CN108496295A CN 108496295 A CN108496295 A CN 108496295A CN 201780008373 A CN201780008373 A CN 201780008373A CN 108496295 A CN108496295 A CN 108496295A
- Authority
- CN
- China
- Prior art keywords
- rotor
- slot
- circumferential surface
- laminated core
- closure elements
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0012—Manufacturing cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0018—Applying slot closure means in the core; Manufacture of slot closure means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
Abstract
In order to be constituted the rotor (100) of motor (101) in a manner of simple and is inexpensive,And herein in order to realize small skin effect losses and realize big pull-out torque since zigzag leakage is small,It proposes and constructs the rotor (100) with substantially cylindrical laminated core (102),Laminated core has the lamination of (A) layering in an axial direction,Wherein,In laminated core (102) slot (103) that substantially axially (A) extends is opened up out along the circumferential surface (104) of laminated core (102),At least some of described slot is by the way that radially (R) extends out to the leakage field gap (108) of circumferential surface (104) since the slot (103) and openly constructed towards the circumferential surface (104) respectively,And wherein,In leakage field gap (108) by axially direction (A) extend and shape-ordinatedly make at least partly the slot (103) towards circumferential surface (104) it is closed in a manner of accommodate non-conductive and non-magnetic closure elements (110).It also proposed the motor (101) with such rotor (100) and the method for manufacturing such rotor (100).
Description
Technical field
The present invention relates to a kind of rotors for motor.The invention further relates to a kind of motors with such rotor.This
Outside, the present invention relates to the methods of rotor as a kind of manufacture or the motor with such rotor.
Background technology
Known a kind of cage rotor of induction machine from 10 2,005 030 797 A1 of document DE, in order to improve sense
Answer the peripheral speed of motor, cage rotor be configured to in the slot of cage rotor at profile bar, at profile bar quilt
It is embodied as hollow, and is axially protruded in end surface side.Each slot can be multiple at profile bar with being inserted into mutually.At profile bar
At least axially end outstanding either can fill copper or aluminium for two at the cavity between profile bar with casting die, while
At casting short-circuited conducting sleeve on the axially projecting end of profile bar.Due to hollow at profile bar, the quality and inertia of cage rotor subtract
Small, the centrifugal force thus occurred wherein reduces.Slot is constructed with radially outer line of rabbet joint gap, that is to say, that can
To be semi-open.It can be equipped with axially extending gap at profile bar, made it possible in casting process together to line of rabbet joint gap
It casts.But can also be configured at profile bar it is closed, to be cast into profile bar time slot gap keep it is not cast.
From 10 2,010 043 384 A1 of document DE it is known it is a kind of include the cylindricality cage rotor for having laminated core
(or cage rotor,) asynchronous machine, laminated core have axial stratification lamination, wherein
There is the slot substantially axially extended in laminated core.Slot is preferably tapered to axis respectively, and at least some of slot
It is radially outward open and there is leakage field gap.It is inserted into relatively high conductivity in the radial outer region of slot
Item, particularly copper bar, cross section are matched with the cross section of slot at least partly.Thus to be located at trench bottom and copper bar lower part it
Between volume carry out radial seal；In order to manufacture the cage rotor for being provided with copper bar and aluminium diecasting, injected into the volume
Preferably conductive material, i.e. aluminium is simultaneously simultaneously selectively additionally formed short-circuited conducting sleeve.It is being intended to as a result, for filling the volume
Press casting procedure in, sealing should be realized outward, without attachment device for sealing leakage field gap.Pass through the gas from motor
These leakage field gaps of gap arrival slot, zigzag leakage reduce, thus fatefully influence cage rotor leakage inductance, and by
This can generate positive influences to the operation action of motor, especially increase pull-out torque.
As a result, especially when rotor is to be constructed be include the laminated core with radially outward open slot, and this
Open slot, the leakage field gap extended through between the circumferential surface of rotor and slot should be kept not in laminated core a bit
When material containing conductor, the manufacture of the short-circuit type mouse cage of the cage rotor for previously described type is according to above-mentioned text
It offers and always needs two-step method, wherein in the first step, it is necessary to a part for conductor material be used as and be installed to slot at profile bar
In, and can just be cast in the second step.Here, when being insert molded item, particularly copper bar, it is necessary to special to sealing
Not carefully because die-casting material, here be aluminium, be that can also be poured into small gap with high-pressure casting and at this.Although
By filling leakage field gap with the conductor material such as copper or aluminium for not influencing its magnetic conductivity, but deposited in the region in leakage field gap
In the case of an electrical conductor, in motor operation, electric current is particularly concentrated there due to kelvin effect, and leads to short circuit
Electrical piano power loss in the short-circuit type mouse cage of formula rotor increases.
Invention content
The technical problem to be solved by the present invention is to be further improved the rotor of motor so that it can be with simple and low
The mode of cost manufactures, and has small skin effect losses herein, and has high step-out since zigzag leakage is small
Torque.
Above-mentioned technical problem is solved by a kind of rotor of motor, which is configured to have substantially cylindrical fold
Piece iron core, laminated core have the lamination being layered in an axial direction, wherein are opened along the circumferential surface of laminated core in laminated core
The slot substantially axially extended is set out, at least some of described slot since the slot by radially extending outwardly respectively
It is openly constructed towards the circumferential surface to the leakage field gap of circumferential surface, and wherein, with axially in leakage field gap
Side upwardly extends and so that the slot is accommodated towards the closed mode of circumferential surface at least partly non-conductive
And non-magnetic closure elements.
Here, cylindrical design is preferably interpreted as cylinder design, the i.e. design of cylinder type and shape.It is substantially cylindrical
Design herein indicate have and accurate cylinder body shape there is no or only small deviation profile design.To be inclined as follows
Difference is known as small, and radially and/or axially size of the deviation relative to rotor in the sense that mathematical concept is small, such as ruler
Very little at least 5 times smaller than the radially and/or axially size of rotor, preferably small at least 10 times of gap.In addition, here, when truncation is justified
When cone-shaped occurs being more than 1/10th difference of one of radius between its maximum radius and least radius, there are truncated cones
The laminated core of shape is also fallen into the range of term " substantially cylindrical laminated core ".Radius is herein always from the rotation of rotor
Shaft starts to measure.
The axial direction of the extending direction of rotary shaft previously given rotor herein.There is accurate cylinder design in rotor
In the case of, the cylinder also with its side surface on the one hand extend in the axial direction, on the other hand it is perpendicular, along
Extend on the circumferencial direction of tangent rotor with side surface.Here, when axial direction extends along the side surface of truncated cones,
Also term " axial direction " is simplifiedly used.It in this sense, further will be basic in the sense that the term defined in front
On the slot that is orientated on the circumferencial direction of motor in the axial direction or rotatably, be known as the slot axially extended, i.e. axial
Slot.Slot in the laminated core of rotor preferably just extends in the axial direction, i.e., is extended parallel to the rotary shaft of rotor.
In being deformed at one, the slot around rotary shaft rotation is preferably extended with constant with distance radially of the axis of rotation.However, just turning
For the axial dimension of son, slot is smaller along rotation, i.e. torsion of the circumferencial direction of rotor in the whole length of rotor, preferably
It is at least 5 times small, it is particularly preferably small an order of magnitude, i.e. at least 10 times small.In an alternative variation, slot is along truncated cones
Side surface extends.For simplicity, below being configured with this rotation or prolong along the side surface of truncated cones
In the case of the slot stretched, also always by its it is machine-direction oriented be known as extend in the axial direction.Therefore, by rotor or laminated core
End in the axial direction, i.e. in the direction of the axis of rotation be known as its axial end portion.
For the sake of completeness, it is once again emphasized that, the radial direction of rotor is extended in a manner of being orthogonally away from rotary shaft.Circle
Circumferential direction is assumed that in fixed point on rotor when rotor is rotated around the direction that rotary shaft moves.It will accurately or substantially
On circumference table is known as by the rotor or the surface of laminated core of the description of the side surface of cylinder, particularly cylinder or truncated cones
Face.
In rotor constructed according to the invention, a leakage field gap in leakage field gap is by two between each two slot
It is separated from each other in rotor tooth axially and radially just upwardly extending, being formed in laminated core, rotor tooth has in longitudinal end
Portion side, i.e. along the circumferential surface of rotor positioning and make rotor tooth end side it is closed, form the pole shoe on boundary.
Term " closing of the shape cooperation of closure elements " is construed to it and abuts leakage field gap in a sealing manner here
Boundary, i.e. wall.Herein preferably, but not necessarily, closure elements abut against this along the entire extension of the wall in leakage field gap
On a little walls, that is, cover entire wall.Closure elements have by slot closed task in radial directions, and as one in these walls
Part is when being uncovered, especially ought the wall in leakage field gap when properly installed there is the radial dimension bigger than closure elements or prolong
When stretching, also according to the construction complete task.
With the lamination of the rotor of the material manufacture preferably by very well magnetic conduction on the contrary, closure elements are using non-magnetic
Material is constituted.As a result, in rotor or when equipped with the motor operation of rotor, flux concentrating is avoided in leakage field gap, on the contrary,
Magnetic flux is transferred from leakage field gap and is directly redirect in the opposite stator tooth of motor from rotor tooth, and thereby increasing can be by
The power and and then increase its pull-out torque that motor applies.Motor with rotor according to the present invention is thereby configured to be used for
Export torque and the power of bigger.
But closure elements be also configured to it is nonconducting, to which it in operation cannot leading from the rotor being arranged in slot
Body receives electric current.Closure elements be arranged in rotor in the area of space near its circumferential surface, in this region there
The conductor of extension is due to kelvin effect particularly aggregate current.Then occurs extra high power attenuation there.This passes through electricity
The closure elements of insulation prevent.
The present invention is so that can the rotor of motor be built in a manner of simple and is inexpensive, and realize herein small
Skin effect losses and realize big pull-out torque since zigzag leakage is small.As will be described below, it especially also borrows
The preferable configuration of the present invention is helped further to be shown specifically, the invention allows to be manufactured in a particularly advantageous manner with these
The rotor of characteristic, the rotor are configured to the conductor of with casting the, particularly direct die casting in slot.
The favorable structure of the present invention is pointed out in the description.
According to a preferred development of rotor according to the present invention, closure elements are with force closure (kraftschl ü ssig)
Mode is connect with the boundary in leakage field gap, also referred to as wall.Closure elements are especially contained in leakage field gap in a manner of force closure
In；Particularly preferred closure elements are at least almost completely filled with leakage field gap herein.In order to form force closure, closure elements are advantageously
Equipped with the retaining component of protuberance, fold either angle type or shape, it is inserted into the state of correct installation (especially embedding
Close, push-in etc.) to these retaining components at least almost in complementary receiving element.In particular, these retaining components and design
Be configured to closure elements being introduced into leakage field gap for complementary receiving element, and be used for herein it is to be performed at least
Push-in substantially in the axial direction keeps it chimeric etc..For example, it is preferable to in the side at least almost extended on axial direction
Formula, closure elements are equipped at least one fixing protuberance and/or fixing fold etc. and the wall in leakage field gap is equipped with mutual with it
Mend matched recess.Other than force closure formula connects, the also formation pair such as at least one fixing protuberance and/or fixing fold
The sealing of slot, therefore be advantageously combined with each other shape cooperation and force closure.The degree of force closure is especially considering that as following
It may also be noticed that the preferably fabricated of the conductor in slot is determined by metal casting method, particularly die cast metal, so as to especially
It is subject to the pressure to work during manufacturing rotor, but is also subjected to the centrifugal force to work in rotor operation.
In another preferred embodiment of rotor according to the present invention, closure elements utilize heatproof and/or heat conduction, excellent
Choosing at least almost with metal equally heat conduction material construct.It must select the temperature tolerance of the material of closure elements so that closing
Element can at least bear the temperature to work during rotor manufacture and rotor operation.It is especially considering that as said further below
It is bright that temperature tolerance is selected to the preferably fabricated of the conductor in slot by metal casting method, that is, the use of the material of closure elements
Temperature at least corresponds to cast temperature.It is preferred that with the comparable capacity of heat transmission of metal, particularly preferably at least nearly equalize laminated core
The capacity of heat transmission the capacity of heat transmission, enabling in the conductor in making slot by metal casting legal system, around at least almost
Equably dissipate the conductor from casting process heat and and then it is equably cooled down, thus reduce and thermal stress and keep away
Exempt to form crack.As a result, in rotor operation, the power attenuation occurred in the rotor is also improved especially via air gap to calmly
The dissipation of son.
In an advantageous extension of rotor according to the present invention, closure elements are constructed using ceramic material.This material
In a particularly advantageous manner by outstanding electrical and magnetic insulation performance and mechanical and calorific intensity and shape stability and good
The capacity of heat transmission is combined, and can be manufactured in a manner of simple and is inexpensive, and being capable of very well mass disposal.In root
In a particularly preferred extension according to the rotor of the present invention, closure elements are using as the salic material of ceramic material
Construction, wherein special cost advantage is obtained by the material that can be obtained and handle in a manner of simple and is inexpensive.
According to an Advantageous embodiments of rotor according to the present invention, the conductor material structure by casting is accommodated in slot
At electric conductor；Especially electric conductor is contained in such a way that at least almost shape coordinates in slot；It is preferred that electric conductor passes through casting
Process is particularly preferably molded in slot by press casting procedure.It can be formed and can be matched from different slot cross sections by casting
A variety of conductor designs, so as to realize high slot fill factor.It is preferred that conductor is passed through metal casting method, particularly preferably gold
Belong to casting die to be directly casted into the slot of laminated core, wherein slot and closure elements form casting shape, particularly preferably pressure together
Cast shape.For this purpose, the height machinery of laminated core and closure elements is close with calorific intensity and its interconnection and relative to each other
It seals extremely important.In particular, the fixing of closure elements and protuberance, fold either angled type or shape provisioned in it
In element and laminated core at least almost (retaining component is inserted into institute for complementary receiving element with these retaining components
State in receiving element) it is designed for this high machinery and calorific intensity.Also particularly advantageously, closure elements have with
The similar capacity of heat transmission of laminated core, because this makes it possible to dissipate as homogeneously as possible in casting process or later around
The process heat being concomitantly introduced into the conductor material heated for casting, that is, make leading for casting as homogeneously as possible around
Body cools down, as already described.Thermal stress and cracking initiation as caused by it are prevented as a result, and improve workpiece, i.e. this
In be conductor quality.
In a preferred development of rotor according to the present invention, accommodate live conductor in slot, electric conductor be determined and
It is determined and the conductor mouse cage designed for being used in asynchronous machine designed for being formed.It can particularly advantageously be retouched with front
The mode according to the present invention stated constructs the simple design of this conductor mouse cage of asynchronous machine.Here, especially for
The conductor made of casting or die casting in slot, can also simply manufacture short-circuited conducting sleeve together, be led preferably by for manufacturing
The same casting of body or press casting procedure, that is to say, that in a common manufacturing step together one-piece manufacture conductor and
Short-circuited conducting sleeve.
Technical problem mentioned above is also solved by a kind of motor, particularly asynchronous machine, and the feature of the motor exists
In the rotor of previously described type according to the present invention, particular in that being configured to the rotor of cage rotor.Thus, it is possible to
Enough construction and manufacture simplified and motor is carried out in such a way that cost is lower, while improving electric property and magnetic property, that is, it carries
High power reduces power attenuation, and especially increases its pull-out torque in the case of asynchronous machine.
Technical problem mentioned above is also by a kind of for manufacturing the motor especially for previously described type
The method of the rotor constructed according to previously described mode solves, and the method includes following methods step：
Substantially cylindrical laminated core is manufactured, laminated core has the lamination being layered in an axial direction, wherein in lamination iron
The slot substantially axially extended is opened up out along the circumferential surface of laminated core in the heart, at least some of described slot is by dividing
The leakage field gap for not extending out to circumferential surface since the slot radially is openly constructed towards the circumferential surface,
Almost on axial direction, at least one closure elements are at least especially being inserted at least one slot extremely
In a few leakage field gap,
Especially by die cast metal method, to by the way that at least one closure elements are inserted at least one leakage field gap
And closed at least one slot casting conductive material, especially conductive metal material, the preferably material containing aluminium and/or copper.
Make it possible to be manufactured in a manner of simple, inexpensive with previously described advantageous operation according to the method for the present invention
The rotor of the motor of characteristic.In addition, by according to the method for the present invention advantageously manufacture with high slot fill factor, one
Formula, shape-ordinatedly fill up the conductor of the profile of slot cross section completely.The characteristic of single type also allows for particularly simply
It is manufactured.Especially it is possible to which cancelling will be previously inserted at profile bar etc. in slot.By closure elements, manufacture is not only simplified
Process, but also obtain rotor and the in turn advantageous electric and magnetic energy of motor.The simplification of manufacture also helps manufacturing process
Automation, previously described all manufacturing steps thus can also be especially executed on axially mounted direction, wherein successively
Carry out layering, the insertion of closure elements and the introducing of founding materials of lamination.Preferably, all manufacturing steps can be such as
It is executed in single workpiece receiving portion, lamination is layered and is adjusted first in the workpiece receiving portion, then installation envelope
Element is closed, finally into the casting of column conductor；It is particularly preferred that the workpiece receiving portion can be by casting or die tool or one portion
Divide and is formed.
Description of the drawings
In the accompanying drawings, identical reference numeral is arranged to consistent element in all figures, and omits to these elements
Repeated description.
Fig. 1 show in open slot with conductor asynchronous machine rotor example reproduce, along with
A segment (Ausbruch) in the cross section that the section plane that rotary shaft extends vertically passes through the rotor of motor is substantially
Schematic diagram,
It is being reproduced Fig. 2 shows the example of the rotor for the asynchronous machine with conductor in the closed slot, along with
The section plane that rotary shaft extends vertically by a segment in the cross section with rotor and the motor of stator substantially
Schematic diagram, and
Fig. 3 show for it is open, by the closed slot of closure elements in conductor asynchronous machine rotor
Example reproduce, along the section plane extended vertically with rotary shaft pass through the implementation of the rotor according to the present invention of motor
The general diagram of a segment in the cross section of example.
The diagram reproduced in the accompanying drawings and the embodiment of the present invention are described below in detail.
Specific implementation mode
In Fig. 1, the laminated core of the rotor 51 of motor 50, particularly asynchronous machine is indicated with reference numeral 52, this is folded
In cross section of the piece iron core with the section plane that is extended vertically along the unshowned rotary shaft with rotor 51 by rotor 51
The general diagram of a segment reproduce, the rotary shaft of rotor 51 is located at outside the segment of the reproduction.The lamination iron of rotor 51
The heart 52 is by the direction A of rotary shaft, i.e. by being formed in the lamination for the axial direction higher slice for perpendicularly entering into plotting planes.It is folded
The lamination of piece iron core 52 is extended parallel to above-mentioned section plane, that is, rotor 51, be orthogonally away from rotor 51
Comprehensively extend on the R of direction radially of the axis of rotation.It opens up out in laminated core 52 and is put down on A in the axial direction, thus with drawing
Open slot 53 on radial direction R that face, i.e. section plane essentially perpendicularly extend, in rotor 51, slot 53 is along rotor 51
Circumferential coordinates U be arranged in rotor 51 below circumferential surface 54 in a uniformly distributed manner, that is, be arranged in laminated core 52
Boundary (Berandung) inside, the boundary by the circumferential surface, rotate around the axis of rotation symmetrically and at least almost
Cylindrically formed at least nearly constant radiuses of the circumferential coordinates U along rotor 51.By laminated core 52 between slot 53
The rotor tooth 55 with pole shoe 56 is formed, pole-face 57 extends along the circumferential surface 54 of rotor 51 and is turned into circumferential surface
54.There are one leakage field gaps 58 (Streuschlitz) for tool between the pole shoe 56 that each two is directly adjacent to each other, and turn in correlation
The slot 53 extended between sub- tooth 55 is led in leakage field gap 58.With conductor 59, the rotor cage of asynchronous machine in particular here59 filling slot 53 of strip conductor and leakage field gap 58.The portion of conductor 59 extended in leakage field gap 58
60 are divided to be located at this in region with the big current density formed due to kelvin effect when motor 50 is run.As a result,
There is big power attenuation in the part 60, keeps the efficiency of motor 50 impaired.
Fig. 2 shows pass through with rotor 71 and stator along the section plane extended vertically with the rotary shaft that do not describe
The general diagram of 81 motor 70, particularly a segment in the cross section of asynchronous machine, that is to say, that rotary shaft and into
And axial direction A is vertical with plotting planes.Rotor 71 is again with the lamination iron being made of the lamination of A higher slices in the axial direction
The heart 72, wherein the lamination of laminated core 72 is extended parallel to section plane, that is to say, that rotor 71, be orthogonally away from
Comprehensively extend on the R of direction radially of the axis of rotation of rotor 71.A in the axial direction is opened up out in the laminated core 72 of rotor 71
It is extending above and essentially perpendicularly with plotting planes or section plane in turn however complete on the radial direction R of rotor 71 at this time
The slot 73 of face closure.Slot 73 is arranged in circumference table in rotor 71 in a uniformly distributed manner along the circumferential coordinates U of rotor 71
The lower section of face 74, that is, be arranged in the inside on the boundary of laminated core 72, the boundary by the circumferential surface, rotate around the axis of rotation pair
Claim ground and is at least almost cylindrically formed at least nearly constant radiuses of the circumferential coordinates U along rotor 71.In slot 73
Between the rotor tooth 75 with pole shoe 76 formed by laminated core 72, pole-face 77 extends simultaneously along the circumferential surface 74 of rotor 71
And it is turned into circumferential surface 74.
Conductor 79, every in 79 filling slot 73 of strip conductor of the rotor cage of asynchronous machine in particular here is used respectively
One.Because slot 73 is also closed towards the circumferential surface 74 of rotor 71, therefore pole shoe 76 and the directly seamlessly transition of its pole-face 77
To each other, to form the part 80 of laminated core 72 between the circumferential surface 74 and slot 73 of rotor 71, these parts 80 are not
Included in conductor 79, that is to say, that non-conductive.It as a result, will not be due to collecting skin when motor 70 is run in these parts 80
Effect generates electric current, certainly without increased current density.As a result, in these parts with rotor 71 in turn of laminated core 72
Emergent power is not lost in 80, and the efficiency of motor 70 is not damaged on this point.
However, due to the direct seamless mutual transition of pole shoe 76 and its pole-face 77, laminated core 72 and and then turn
Magnetic conduction connection is formed in the part 80 between the circumferential surface 74 and slot 73 of rotor 71 of son 71.It is run as a result, in motor 70
When, be likely to occur leakage magnetic flux, also referred to as zigzag leakage in these parts 80, due to the zigzag leakage so that motor 70,
Especially the pull-out torque of asynchronous machine reduces.About its diagram, also illustrate in fig. 2 along it is mentioned with do not describe
The section plane that rotary shaft extends vertically passes through a piece in the cross section of motor 70, particularly the stator 81 of asynchronous machine
Section.Stator 81 has laminated core 82, and the laminated core 72 with rotor 71 is comparably by the folded of A higher slices in the axial direction
Piece forms, wherein the lamination of the laminated core 82 of stator 81 equally with section plane or plotting planes parallelly, it is that is complete
Extend on the radial direction R of rotor 71 to face, is also the radial direction side of stator 81 in the radial direction R of rotor 71 on this point
To.It opens up out on A in the axial direction and and then hangs down substantially with plotting planes or section plane in the laminated core 82 of rotor 81
Slot 83 directly extending, being opened towards rotor 71 on radial direction R.Circumferential surface of the slot 83 in stator 81 with rotor 71
74 opposite ground and separatedly, circumferentially coordinate U to be to be evenly distributed on the circumference of stator 81 by air gap 84
Mode arrange.The stator tooth 85 with pole shoe 86 is formed by laminated core 82 between slot 83, the pole-face 87 of pole shoe 86 with
The mode that the circumferential surface 74 of rotor 71 is opposite extends along the circumference of stator 81.In the slot 83 of stator 81 arrange stator around
The conductor 89 of group.
In diagram according to fig. 2, the magnetic line of force of the magnetic flux formed when motor 70 is run is substantially schematically depicted
90.The magnetic line of force 90 runs through stator tooth 85, and is reached in rotor 71 via air gap 84 along its pole-face 87 across its pole shoe 86, and
And it is reached in rotor tooth 75 along the pole-face 77 of the pole shoe 76 of rotor 71 there.Here, one of magnetic flux or its magnetic line of force 90
Divide and is turned to since the laminated core 72 of rotor 71 forms the part 80 of magnetic conduction connection between slot 73 and circumferential surface 74.With attached
The part for the magnetic flux or its magnetic line of force that icon note 91 indicates forms the leakage magnetic flux of through part 80, also referred to as zigzag leakage,
It is reduced due to the zigzag leakage with the maximum achievable torque of the motor 70 of discribed structure type, in asynchronous machine
In also referred to as pull-out torque (Kippmoment).
Now, the embodiment of the present invention is reproduced with substantially schematical diagram in figure 3, along with do not draw again
A piece in the cross section that the section plane that rotary shaft extends vertically passes through the rotor according to the present invention 100 of motor 101
Describe in section.In particular, Fig. 3 shows the example of the rotor 100 of asynchronous machine 101.Rotor 100 is configured to have cylindrical
Laminated core 102, laminated core 102 are configured to the lamination that is layered in an axial direction, i.e., on A in the axial direction, i.e. with drawing
The lamination that plane or section plane are vertically layered each other, to which lamination extends in plotting planes or in parallel therewith.
In laminated core, circumferentially surface 104, are the rotor 100 being vertically oriented with plotting planes or laminated core herein
102 cylindrical side opens up out the slot 103 substantially axially extended.Slot 103 is configured to by respectively in radial side
Outward, i.e. separate rotary shaft extended to since slot 103 on R circumferential surface 104, open towards the circumferential surface 104
Leakage field gap 108.By each two along vertical with axial direction A and along the rotor tangent with circumferential surface 104
Slot 103 adjacent 100 circumferencial direction U, is respectively formed the boundary of rotor 100 or the rotor tooth 105 of laminated core 102.Every
Pole shoe 106 is formed on a rotor tooth 105 between each two leakage field gap 108.The pole-face 107 of pole shoe 106 is along rotor 100
Circumferential surface 104 extends and is turned into circumferential surface 104.
In leakage field gap 108, to extend on axially direction A and with 106 force closure of pole shoe and here
Slot 103 is especially shape-ordinatedly set to be accommodated towards 104 closed mode of circumferential surface completely non-conductive and non-magnetic
Closure elements 110.Force closure and shape cooperation between closure elements 110 and pole shoe 106 pass through the fixing of crowned member
Part 111 generates, and retaining component 111 is molded in a manner of extending in the axial direction on closure elements 110.Retaining component 111
In receiving element 112 being fitted to groove-like, complementally being formed with retaining component 111, in pole shoe 106 towards leakage field gap
Receiving element 112 is opened up out in 108 boundary, i.e. in the wall in leakage field gap 108.Pass through retaining component 111 and receiving element 112
Axial orientation, be here protuberance and groove axial orientation, in order to be installed, closure elements 110 can simply edge
Axial direction A is pushed into leakage field gap 108, is closed, and slot 103 is thus made to be complete shape on radial direction R
Coordinate and force closure, and forms the closing of the stabilization of slot 103 towards circumferential surface 104 in this way.It can also select
The connection etc. of accordion is set between retaining component 111 and receiving element 112 to selecting property, as long as this connection is configured to protect
Card slot 103 is completely enclosed towards circumferential surface 104 and absorbs the power being radially directed.
Equal arrangement of conductors 109, conductor 109 fill the slot 103 in form-fit fashion in each slot 103.For this purpose, logical
Metal casting method, particularly die casting are crossed, 110 closed slot of closure elements is directly preferably being passed through by the material of cupric and/or aluminium
Conductor is manufactured in 103.This preferred system in view of conductor 109 by metal casting method, particularly die cast metal in slot 103
It makes, the degree of retaining component 111 and 112 combination with one another formula shape of receiving element cooperation and force closure is determined, so as to hold
By the pressure occurred during manufacturing process.In addition, using temperature-resistant material, particularly utilizing ceramic material, preferably at low cost, resistance to
High temperature and the aluminium oxide of high mechanical strength formation closure elements 110.
Closure elements 110 make it possible to cast conductor 109 in slot 103 as a result, and herein will not introduce conductor material
In leakage field gap 108.In this manufacturing method and this construction of conductor 109, leakage field gap 108 keeps non-conductive and not
Magnetic conduction, thus motor 101 is at runtime with small loss and big pull-out torque.In particular, thus, it is possible to particularly well
Manufacture the conductor mouse cage of the rotor of asynchronous machine.The conductor is particularly simple constituted one-piece, however can also more than one piece
It constitutes, such as by being inserted into conductor molded part in the forward slot 103 of casting likes.The manufacture and used material energy
It is enough to be handled in a manner of simple and is inexpensive.
Reference numerals list
50 motors
51 50 rotor
52 51 laminated core
51 slot in 53 52
54 51,52 circumferential surface
55 51,52 rotor tooth
56 55 pole shoe
57 56 pole-face
Leakage field gap in 58 52
Conductor in 59 53,58
59 part in 60 58
70 motors
71 70 rotor
72 71 laminated core
71 slot in 73 72
74 71,72 circumferential surface
75 71,72 rotor tooth
76 75 pole shoe
77 76 pole-face
Conductor in 79 73
72 part between 80 73 and 74
81 70 stator
82 81 laminated core
81 slot in 83 82
Air gap between the 74 of 84 71 and the 87 of 81
85 81,82 stator tooth
86 85 pole shoe
87 86 pole-face
Conductor in 89 83
The magnetic line of force of magnetic flux in 90 71,81
Zigzag leakage in 91 80
100 101 rotor
101 motors
102 100 laminated core
100 slot in 103 102
104 100,102 circumferential surface
105 100,102 rotor tooth
106 105 pole shoe
107 106 pole-face
Leakage field gap in 108 102
Conductor in 109 103
Closure elements in 110 108
111 110 retaining component
The receiving element in 102 in 112 108 wall
The axial direction of A 51,71,100
The radial direction of R 51,71,100
The circumferencial direction of U 51,71,100
Claims (9)
1. one kind being used for the rotor (100) of motor (101), it is configured to that there is substantially cylindrical laminated core (102), lamination
Iron core has the lamination of (A) layering in an axial direction, wherein along the circumferential surface of laminated core (102) in laminated core (102)
(104) open up out the slot (103) that substantially axially (A) extends, at least some of described slot by respectively radially (R) from
The leakage field gap (108) that the slot (103) starts to extend out to circumferential surface (104) is open towards the circumferential surface (104)
Ground constructs, and wherein, to extend on axially direction (A) and at least partly contoured is matched in leakage field gap (108)
Closing ground makes the slot (103) accommodate non-conductive and non-magnetic closure elements towards circumferential surface (104) closed mode
(110)。
2. rotor (100) according to claim 1,
It is characterized in that,
Closure elements (110) in a manner of force closure with the contour connection in leakage field gap (108).
3. the rotor (100) according to one or more of the claims,
It is characterized in that,
Material of the closure elements (110) using heatproof and/or heat conduction, preferably at least almost with metal equally heat conduction constructs.
4. the rotor (100) according to one or more of the claims,
It is characterized in that,
Closure elements (110) are constructed using ceramic material.
5. the rotor (100) according to one or more of the claims,
It is characterized in that,
Closure elements (110) are constructed using salic material.
6. the rotor (100) according to one or more of the claims,
It is characterized in that,
The electric conductor (109) being made of the conductor material cast, especially electric conductor (109) are accommodated in the slot (103)
It is contained in the slot (103) in such a way that at least almost shape coordinates, preferably electric conductor (109) passes through casting process, spy
The not preferably molding in the slot (103) by press casting procedure.
7. the rotor (100) according to one or more of the claims,
It is characterized in that,
Live conductor (109) is accommodated in the slot (103), electric conductor, which is determined and is configured to be formed, is determined and constructs use
In the conductor mouse cage used in asynchronous machine (101).
8. a kind of motor (101), particularly asynchronous machine (101),
It is characterized in that,
Rotor (100) according to one or more of the claims,
Especially it is configured to the rotor (100) of cage rotor.
9. it is a kind of for manufacture be especially motor (101) for being constructed according to claim 8 according to the claims 1 to
The method of the rotor (100) of one or more of 7 constructions,
It is characterized in that following methods step：
Substantially cylindrical laminated core (102) is manufactured, laminated core has the lamination of (A) layering in an axial direction, wherein folded
In piece iron core (102) slot that substantially axially (A) extends is opened up out along the circumferential surface (104) of laminated core (102)
(103), at least some of described slot is by the way that radially (R) extends out to circumferential surface since the slot (103) respectively
(104) leakage field gap (108) is openly constructed towards the circumferential surface (104),
Almost on axial direction (A), at least one closure elements (110) are at least especially being inserted at least one slot
At least one leakage field gap in,
Especially by die cast metal method, to by the way that at least one closure elements (110) are inserted at least one leakage field gap
(108) closed at least one slot (103) casting conductive material, especially conductive metal material, preferably contain aluminium and/or copper in
Material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016201048.4A DE102016201048A1 (en) | 2016-01-26 | 2016-01-26 | Rotor, electric machine and method of manufacture |
| DE102016201048.4 | 2016-01-26 | ||
| PCT/EP2017/050499 WO2017129407A1 (en) | 2016-01-26 | 2017-01-11 | Rotor, electrical machine and method for producing a rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108496295A true CN108496295A (en) | 2018-09-04 |
Family
ID=57777659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780008373.5A Pending CN108496295A (en) | 2016-01-26 | 2017-01-11 | Rotor, motor and the method for manufacturing rotor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3408923A1 (en) |
| CN (1) | CN108496295A (en) |
| DE (1) | DE102016201048A1 (en) |
| WO (1) | WO2017129407A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082608A (en) * | 2019-11-26 | 2020-04-28 | 华北电力大学 | Machining method for high-voltage high-power cage type motor rotor copper bar harmonic elimination groove |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022208672A1 (en) | 2022-08-22 | 2024-02-22 | Volkswagen Aktiengesellschaft | Rotor for an asynchronous machine with cooling channels, asynchronous machine and motor vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE711184C (en) * | 1937-04-01 | 1941-09-26 | Aeg | Process for the production of runner of electrical machines with cast runner winding and half-open grooves |
| CN103858320A (en) * | 2011-06-10 | 2014-06-11 | 汉斯约格·塞瓦尔德 | Locking key |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19526509A1 (en) * | 1995-07-20 | 1997-01-23 | Still Gmbh | Electrical machine |
| DE102004015243B4 (en) * | 2004-03-29 | 2008-03-20 | Siemens Ag | Electric machine with deck slides |
| DE102005030797A1 (en) | 2005-06-29 | 2007-01-04 | Siemens Ag | Squirrel cage of an induction machine |
| US7936103B2 (en) * | 2007-11-21 | 2011-05-03 | General Electric Company | Methods for fabricating a wedge system for an electric machine |
| DE102010043384A1 (en) | 2010-11-04 | 2012-05-10 | Siemens Aktiengesellschaft | Asynchronous machine e.g. power converter-fed asynchronous machine has copper rods having high electrical conductivity, which are arranged within radial outer portions of grooves tapered along axial direction of bundle of laminations |
| DE102011106480A1 (en) * | 2011-06-14 | 2012-12-20 | Voith Patent Gmbh | asynchronous |
| DE102011086181A1 (en) * | 2011-11-11 | 2013-05-16 | Robert Bosch Gmbh | Slot closure element for sealing groove opening of machine element e.g. stator of rotatory electric machine e.g. synchronous machine, has plane segments connected to each other in single plane, having predetermined angle |
| DE102013218822A1 (en) * | 2013-09-19 | 2015-03-19 | Robert Bosch Gmbh | Slot closure for electrical machines |
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2016
- 2016-01-26 DE DE102016201048.4A patent/DE102016201048A1/en not_active Withdrawn
-
2017
- 2017-01-11 WO PCT/EP2017/050499 patent/WO2017129407A1/en active Application Filing
- 2017-01-11 EP EP17700253.2A patent/EP3408923A1/en not_active Withdrawn
- 2017-01-11 CN CN201780008373.5A patent/CN108496295A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE711184C (en) * | 1937-04-01 | 1941-09-26 | Aeg | Process for the production of runner of electrical machines with cast runner winding and half-open grooves |
| CN103858320A (en) * | 2011-06-10 | 2014-06-11 | 汉斯约格·塞瓦尔德 | Locking key |
Non-Patent Citations (2)
| Title |
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| BACHER J ET AL: "A field plot of a turbo generator with a massive rotor on the basis of the actual current distributions during a sudden short circuit", 《IEEE SERVICE CENTER》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082608A (en) * | 2019-11-26 | 2020-04-28 | 华北电力大学 | Machining method for high-voltage high-power cage type motor rotor copper bar harmonic elimination groove |
| CN111082608B (en) * | 2019-11-26 | 2020-11-24 | 华北电力大学 | Machining method for high-voltage high-power cage type motor rotor copper bar harmonic elimination groove |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3408923A1 (en) | 2018-12-05 |
| DE102016201048A1 (en) | 2017-07-27 |
| WO2017129407A1 (en) | 2017-08-03 |
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