CN108512320A - Stator core and electric rotating machine - Google Patents
Stator core and electric rotating machine Download PDFInfo
- Publication number
- CN108512320A CN108512320A CN201810538349.9A CN201810538349A CN108512320A CN 108512320 A CN108512320 A CN 108512320A CN 201810538349 A CN201810538349 A CN 201810538349A CN 108512320 A CN108512320 A CN 108512320A
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- tooth
- auxiliary tank
- punching
- stator core
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- 238000004080 punching Methods 0.000 claims abstract description 130
- 210000000515 tooth Anatomy 0.000 claims abstract description 91
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
-
- 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 present invention proposes a kind of stator core and electric rotating machine, wherein stator core includes：The stator punching of multiple stackings, stator punching includes circumferentially distributed multiple stator tooths, two adjacent stator tooths, which enclose, to be set to form stator slot, and two adjacent stator tooths have angular pitch, stator tooth includes radially teeth portion and tooth boot portion successively from outside to inside, multiple tooth boot portions, which are enclosed, sets the centre bore to form stator punching, gap between two adjacent tooth boot portions limits the notch of corresponding stator slot, wherein, auxiliary tank is offered on the inner wall of part tooth boot portion on stator punching, in a stack, at least two stator punchings circumferentially deflect setting, and deflection angle is angular pitch.Technical solution through the invention can reduce the lowest spatial order component of radial electromagnetic force wave, to achieve the purpose that reduce the vibration noise of motor.
Description
Technical field
The present invention relates to motor fields, in particular to a kind of stator core and a kind of electric rotating machine.
Background technology
In the related technology, motor is widely used in motor-driven various productions as important energy conversion device
In machinery and equipment, electric rotating machine includes motor stator and rotor, and the rotor of setting within the compressor is general
Using cantilever design, due to only by unilateral bearing support, in rotor installation process, needing through the toolings tune such as clearance gauge
Whole air gap.
In order to reduce Gas-gap Magnetic Field Resonance Wave, rotor outer circle arc is provided off structure, then makes periphery and the stator of rotor
Inner circumferential between correspondence be point-to-area relationship, cause to be difficult adjustment air gap precision.
Invention content
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of stator cores.
A further object of the present invention is to provide a kind of electric rotating machine.
To achieve the goals above, the embodiment of first aspect present invention proposes a kind of stator core, including：Multiple heaps
Folded stator punching, stator punching include circumferentially distributed multiple stator tooths, and two adjacent stator tooths, which enclose, to be set to form stator
Slot, and two adjacent stator tooths have angular pitch, stator tooth more radially from outside to inside successively including teeth portion and tooth boot portion
A tooth boot portion, which is enclosed, sets the centre bore to form stator punching, and the gap between adjacent two tooth boot portions limits corresponding stator slot
Notch, wherein offer auxiliary tank on the inner wall of the part tooth boot portion on stator punching, in a stack, at least two stators
Punching circumferentially deflects setting, and deflection angle is angular pitch.
In the technical scheme, it carries out laminating generation stator core using a form of multiple stator punchings, the stator
Multiple stator tooths being circumferentially arranged are provided in punching, each stator tooth, which corresponds to, has teeth portion and tooth boot portion, in part tooth boot portion
Inner wall on open up auxiliary tank, and for the stator punching that any two laminates, circumferentially there is deviation angle, deviation angle
Angular pitch between i.e. two adjacent stator tooths passes through the stator to offset on the basis of satisfaction opens up auxiliary tank demand
Punching is overlapped, so that the auxiliary tank on the stator punching of offset is in different orientation, and then is realized only with one kind
The stacking demand of diversified forms can be realized in the stator punching of specification, on the one hand, since radial component makes stator core generate
Vibration deformation is the main source of electromagnetic noise, by opening up auxiliary tank in the tooth boot portion of part, even if in the outer of rotor
When correspondence between week and the inner circumferential of motor stator is point-to-area, remain to by improving stator slot to improve radial electromagnetic force
The order of wave reduces the deformation of stator core, and then reduces the lowest spatial order component of radial electromagnetic force wave, is reduced with reaching
The purpose of the vibration noise of motor.
It is understood that angular pitch is the angle between two adjacent symmetrical center lines for customizing teeth, angle is big
The result that small is 360 ° divided by the quantity of stator tooth obtains.Wherein, the quantity of stator tooth can be 6,9 or 12 etc..
In addition, the stator core in above-described embodiment provided by the invention can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that the inner wall correspondence of 2/3 tooth boot portion opens up auxiliary tank on stator punching；It is fixed
Include multigroup auxiliary tank in sub- punching, each group of auxiliary tank includes two adjacent first auxiliary tanks, between every group of auxiliary tank between
Every there are one the full tooth of stator, the full tooth of stator is the stator tooth that auxiliary tank is not arranged.
It in the technical scheme, can be with since the quantity of stator tooth on each stator punching is usually 3 multiple
The tooth boot portion that 1/3 is chosen on each stator punching opens up auxiliary tank, and be spaced between these auxiliary tanks two be not arranged it is auxiliary
It helps the stator tooth of slot uniformly to open up, when stacking, is arranged by deviating stator punching, 3 stator punchings can be made to project
Just circumferential equally distributed multiple auxiliary tanks are formed on face, the inner wall relative to 2/3 tooth boot portion on stator punching corresponds to
The mode for opening up auxiliary tank is meeting the improvement demand to stator slot, is simplifying preparation process.
In the above-mentioned technical solutions, it is preferable that the inner wall correspondence of 1/3 tooth boot portion opens up auxiliary tank on stator punching；Phase
There are two the full teeth of stator at interval between two adjacent auxiliary tanks, and the full tooth of stator is the stator tooth that auxiliary tank is not arranged.
It in the technical scheme, can be with since the quantity of stator tooth on each stator punching is usually 3 multiple
The tooth boot portion that 2/3 is chosen on each stator punching opens up auxiliary tank, and these auxiliary tanks are circumferentially uniformly opened in pairs
If being spaced a stator tooth that auxiliary tank is not arranged between each group of auxiliary tank, when stacking, by the way that stator punching offset is set
It sets, so that two stator punchings form circumferential equally distributed multiple auxiliary tanks just on the projection surface, to meet to stator slot
Improvement demand.
In the above-mentioned technical solutions, it is preferable that stator tooth is symmetrical structure, opposite for the auxiliary tank on each stator tooth
It is symmetrical arranged in the symmetrical center line of stator tooth.
In the technical scheme, symmetrical center line is all had for each stator tooth, stator tooth is configured to axial symmetry
Auxiliary tank is configured to relative to the symmetrical axis of symmetrical centre by structure by the way that auxiliary tank to be opened in symmetrical center line
Symmetrical structure, on the one hand, be conducive to make the tactical ruleization of auxiliary tank to be arranged, to promote auxiliary work(of the auxiliary tank to stator slot
Can, the fitness of slot is improved, on the other hand, can also promote the convenience of auxiliary tank preparation.
In any of the above-described technical solution, it is preferable that auxiliary tank semi-circular groove, rectangular slot, dovetail groove and vee gutter
In any one or arbitrary two kinds of combination.
In the technical scheme, by limiting the shape of auxiliary tank, it is convenient on the one hand can to ensure to prepare, on the other hand,
Than using being compared before auxiliary tank, the efficiency for weakening tooth socket pulsation can be promoted after the auxiliary tank of the above structure of use.
Preferably, auxiliary tank is radially formed by trapezoidal combined with rectangle from outside to inside, and uses in angle
Round-corner transition.
In any of the above-described technical solution, it is preferable that the width of notch is W1, and the radial width of tooth boot portion is H1, auxiliary
The width of slot is W2, and the radial depth capacity of auxiliary tank is H2, wherein
In the technical scheme, by limiting the ratio range of W2 and W1 and the ratio range of H2 and H1, on the one hand,
The optimization for realizing the size of auxiliary tank, to reduce the lowest spatial order component of radial electromagnetic force wave, another party to greatest extent
Face can also prevent auxiliary tank since the air gap of radial dimension and the excessive generation of width dimensions is excessive, be increased with caused magnetic resistance
Add and influences motor operation efficiency.
As a preferred embodiment, W2 is identical as W1, H2 is identical as H1.
In any of the above-described technical solution, it is preferable that multiple stator punchings are in an axial direction from top to bottom in the same direction successively
The angle of deflection angular pitch is laminated.
In the technical scheme, as a kind of embodiment being specifically superimposed, multiple stator punchings can be along clockwise
Direction is laminated after deflecting an angular pitch successively counterclockwise under upper or from bottom to up, in stator punching
For the inner wall of upper 2/3 tooth boot portion corresponds to the scheme for opening up auxiliary tank, adjacent three pieces stator punching is one group, i.e., the 4th
Stator punching is identical as the position of first stator punching, and the inner wall of 1/3 tooth boot portion on stator punching is corresponded to and is opened up
For the scheme of auxiliary tank, likewise, adjacent three pieces stator punching is one group, i.e. the 4th stator punching and first stator
The identical one side in position of punching, the circumferential direction for realizing auxiliary tank is uniformly distributed, on the other hand, is also beneficial to reduce radial load lowest empty
Between order component.
In any of the above-described technical solution, it is preferable that further include：Multigroup stator punching section, each group of stator punching section packet
Multiple stator punchings are included, and correspondence is set the auxiliary tank on multiple stator punchings in each group of stator punching section one by one in an axial direction
It sets, wherein multigroup stator punching section in an axial direction docked successively in the same direction from top to bottom by the angle of deflection angular pitch.
In the technical scheme, the embodiment being specifically superimposed as another kind, by multiple deviation angles being continuously arranged
Identical stator punching is spent as one group of punching section, and the inner wall of 2/3 tooth boot portion on stator punching is corresponded to and opens up auxiliary
The scheme of the slot or inner wall of 1/3 tooth boot portion corresponds to the scheme of auxiliary tank of opening up on stator punching, can be according to the angle of offset
Degree is divided into three groups of punching sections, and three groups of punching sections are then carried out docking superposition, is equally reached the vibration noise for reducing motor
Purpose.
The embodiment of second aspect of the present invention proposes a kind of electric rotating machine, including：The technical side of first aspect present invention
The stator core that case proposes and the winding being set around on stator core；Rotor is arranged assembling with the centre bore of motor stator.
In the technical scheme, it is overlapped by the stator punching to offset, so that auxiliary on the stator punching of offset
It helps slot to be in different orientation, and then realizes the stacking need that diversified forms can be realized only with a kind of stator punching of specification
It asks, on the one hand, since the vibration deformation that radial component makes stator core generate is the main source of electromagnetic noise, by part
Auxiliary tank is opened up in tooth boot portion, even if the correspondence between the periphery of rotor and the inner circumferential of motor stator is point-to-area
When, it remains to, by improving stator slot to improve the order of radial electromagnetic force wave, reduce the deformation of stator core, and then reduce radial
The lowest spatial order component of electromagnetic force wave, to achieve the purpose that reduce the vibration noise of motor.
In the above-mentioned technical solutions, it is preferable that the rotor cross section profile vertical with axis is by a plurality of opposite centre bore
Circumferentially head and the tail connecting structure is formed for eccentric eccentric arc and the isocentric circular arc concentric with centre bore.
In the technical scheme, in order to reduce Gas-gap Magnetic Field Resonance Wave, by the rotor cross section profile vertical with axis by
Circumferentially head and the tail connecting structure is formed the circular arc and the circular arc concentric with centre bore of a plurality of opposite centre bore bias, on the one hand,
In conjunction with the setting of auxiliary tank, be conducive to further decrease Gas-gap Magnetic Field Resonance Wave, on the other hand, by least the one of stator core
The second stator punching of end setting, can make to realize that face face is corresponding between stator core and the outer wall of rotor to greatest extent, from
And be conducive to using the toolings such as clearance gauge adjustment gas, and then the concentricity between stator core and rotor is promoted, to reach adjustment
Air gap precision and the purpose for reducing electromagnetic noise.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 show the first of stator core according to an embodiment of the invention to dimensional structure diagram；
Fig. 2 shows stator core according to an embodiment of the invention second to dimensional structure diagram；
Fig. 3 shows the planar structure schematic diagram of the first stator punching according to an embodiment of the invention；
Fig. 4 shows the dimensional structure diagram of the first stator punching according to an embodiment of the invention；
Fig. 5 shows the planar structure schematic diagram of the second stator punching according to an embodiment of the invention；
Fig. 6 shows the dimensional structure diagram of the second stator punching according to an embodiment of the invention；
Fig. 7 shows the planar structure schematic diagram of electric rotating machine according to an embodiment of the invention；
Fig. 8 shows the planar structure schematic diagram of rotor according to an embodiment of the invention.
Wherein, the correspondence in Fig. 1 to Fig. 8 between reference numeral and component names is：
10 stator cores, 102 first stator punchings, 104 second stator punchings, 1,022 first teeth portion, 1,024 first tooth boots
Portion, 1,026 first auxiliary tanks, 1,042 second teeth portion, 1,044 second tooth boot portions, 1,046 second auxiliary tanks, 20 rotors, 202 is same
Heart circular arc, 204 eccentric arcs, 206 magnetic slots, 208 axis holes.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to the stator core of Fig. 1 to Fig. 8 descriptions according to some embodiments of the invention.
As shown in Figures 1 and 2, stator core 10 according to an embodiment of the invention, including：The stator of multiple stackings rushes
Piece, stator punching include circumferentially distributed multiple stator tooths, and two adjacent stator tooths, which enclose, to be set to form stator slot, and two
It includes radially teeth portion and tooth boot portion successively from outside to inside that adjacent stator tooth, which has angular pitch, stator tooth, and multiple tooth boot portions are enclosed
If forming the centre bore of stator punching, the gap between adjacent two tooth boot portions limits the notch of corresponding stator slot,
In, auxiliary tank is offered on the inner wall of the part tooth boot portion on stator punching, in a stack, at least two stator punchings are circumferentially
Deflection setting, and deflection angle is angular pitch.
In this embodiment, using a form of multiple stator punchings laminate and generate stator core 10, the stator
Multiple stator tooths being circumferentially arranged are provided in punching, each stator tooth, which corresponds to, has teeth portion and tooth boot portion, in part tooth boot portion
Inner wall on open up auxiliary tank, and for the stator punching that any two laminates, circumferentially there is deviation angle, deviation angle
Angular pitch between i.e. two adjacent stator tooths passes through the stator to offset on the basis of satisfaction opens up auxiliary tank demand
Punching is overlapped, so that the auxiliary tank on the stator punching of offset is in different orientation, and then is realized only with one kind
The stacking demand of diversified forms can be realized in the stator punching of specification, on the one hand, since radial component makes stator core 10 generate
Vibration deformation be electromagnetic noise main source, by opening up auxiliary tank in the tooth boot portion of part, even if in rotor
When correspondence between periphery and the inner circumferential of motor stator is point-to-area, remain to by improving stator slot to improve radial electromagnetism
The order of Reeb reduces the deformation of stator core 10, and then reduces the lowest spatial order component of radial electromagnetic force wave, to reach
Reduce the purpose of the vibration noise of motor.
It is understood that angular pitch is the angle between two adjacent symmetrical center lines for customizing teeth, angle is big
The result that small is 360 ° divided by the quantity of stator tooth obtains.Wherein, the quantity of stator tooth can be 6,9 or 12 etc..
In addition, the stator core 10 in above-described embodiment provided by the invention can also have following additional technical feature：
As shown in Figure 3 and Figure 4, according to one embodiment of the application, stator punching is to be opened up with the first auxiliary tank
The stator tooth of first stator punching 102 of mode, the first stator punching 102 includes radially the first teeth portion successively from outside to inside
1022 and first tooth boot portion 1024, the first auxiliary tank 1026 is offered on the inner wall of at least one first tooth boot portion 1024.
The inner wall correspondence of 2/3 tooth boot portion opens up auxiliary tank thereon；Include multigroup auxiliary tank on stator punching, each group auxiliary
It includes two adjacent first auxiliary tanks 1026 to help slot, is spaced between every group of auxiliary tank there are one the full tooth of stator, the full tooth of stator is
The stator tooth of auxiliary tank is not set.
It in this embodiment, can be since the quantity of stator tooth on each stator punching is usually 3 multiple
The tooth boot portion that 1/3 is chosen on each stator punching opens up auxiliary tank, and is spaced two between these auxiliary tanks and auxiliary is not arranged
The stator tooth of slot uniformly opens up, and when stacking, is arranged by deviating stator punching, 3 stator punchings can be made on perspective plane
Upper to form circumferential equally distributed multiple auxiliary tanks just, the inner wall relative to 2/3 tooth boot portion on stator punching, which corresponds to, to be opened
If the mode of auxiliary tank, is meeting the improvement demand to stator slot, simplifying preparation process.
As shown in figs. 5 and 6, according to another embodiment of the application, stator punching is to be opened with second of auxiliary tank
If the second stator punching 104 of mode, the stator tooth of the second stator punching 104 includes radially the second teeth portion successively from outside to inside
1042 and second tooth boot portion 1044, the second auxiliary tank 1046 is offered on the inner wall of at least one second tooth boot portion 1044.
The inner wall correspondence of 1/3 tooth boot portion opens up auxiliary tank on second stator punching 104；Between two adjacent auxiliary tanks
There are two the full teeth of stator at interval, and the full tooth of stator is the stator tooth that auxiliary tank is not arranged.
It in this embodiment, can be since the quantity of stator tooth on each stator punching is usually 3 multiple
The tooth boot portion that 2/3 is chosen on each stator punching opens up auxiliary tank, and these auxiliary tanks circumferentially uniformly open up in pairs,
It is spaced a stator tooth that auxiliary tank is not set between each group of auxiliary tank, when stacking, is arranged by deviating stator punching,
So that two stator punchings form circumferential equally distributed multiple auxiliary tanks just on the projection surface, stator slot is changed with meeting
Kind demand.
In the above embodiment, it is preferable that stator tooth be symmetrical structure, for the auxiliary tank on each stator tooth relative to
The symmetrical center line of stator tooth is symmetrical arranged.
In this embodiment, symmetrical center line is all had for each stator tooth, stator tooth is configured to axial symmetry knot
Auxiliary tank is configured to relative to the symmetrical axis pair of symmetrical centre by structure by the way that auxiliary tank to be opened in symmetrical center line
Claim structure, on the one hand, be conducive to make the tactical ruleization of auxiliary tank to be arranged, to promote miscellaneous function of the auxiliary tank to stator slot,
The fitness of slot is improved, on the other hand, can also promote the convenience of auxiliary tank preparation.
In any of the above-described embodiment, it is preferable that in auxiliary tank semi-circular groove, rectangular slot, dovetail groove and vee gutter
Any one or arbitrary two kinds of combination.
In this embodiment, by limiting the shape of auxiliary tank, it is convenient on the one hand can to ensure to prepare, and on the other hand, adopts
Than using being compared before auxiliary tank, the efficiency for weakening tooth socket pulsation can be promoted after the auxiliary tank of above structure.
Preferably, auxiliary tank is radially formed by trapezoidal combined with rectangle from outside to inside, and uses in angle
Round-corner transition.
The second auxiliary opened up on the first auxiliary tank 1026 and the second stator punching 104 that first stator punching 102 opens up
The shape of slot 1046 is identical.
As shown in figure 3, in any of the above-described embodiment, it is preferable that the width of notch is W1, and the radial width of tooth boot portion is
The width of H1, the first auxiliary tank 1026 are W2, and the radial depth capacity of the first auxiliary tank 1026 is H2,
As shown in figure 5, the width of the second auxiliary tank 1046 is also to be W2, the radial depth capacity of the second auxiliary tank 1046
For H2,
In this embodiment, by limiting the ratio range of W2 and W1 and the ratio range of H2 and H1, on the one hand, real
The optimization for having showed the size of the first auxiliary tank 1026, to reduce the lowest spatial order component of radial electromagnetic force wave to greatest extent,
On the other hand, it can also prevent the first auxiliary tank 1026 since the air gap of radial dimension and the excessive generation of width dimensions is excessive,
With caused magnetic resistance increases and influences motor operation efficiency.
In this embodiment, by limiting the ratio range of W3 and W1 and the ratio range of H3 and H1, on the one hand, real
The optimization for having showed the size of the second auxiliary tank 1046, to reduce the lowest spatial order component of radial electromagnetic force wave to greatest extent,
On the other hand, it can also prevent the second auxiliary tank 1046 since the air gap of radial dimension and the excessive generation of width dimensions is excessive,
With caused magnetic resistance increases and influences motor operation efficiency.
As a preferred embodiment, W3, W2 are identical as W1, H3, H2 are identical as H1.In any of the above-described embodiment
In, it is preferable that the angle of deflection angular pitch is laminated multiple stator punchings successively in the same direction from top to bottom in an axial direction.
As shown in Figure 1, in this embodiment, as a kind of embodiment being specifically superimposed, multiple stator punchings can be with
Laminated after deflecting an angular pitch successively under upper or from bottom to up clockwise or counterclockwise, for
For the inner wall of 2/3 tooth boot portion corresponds to the scheme for opening up the first auxiliary tank 1026 on stator punching, the punching of adjacent three pieces stator
Piece is one group, i.e. the 4th stator punching is identical as the position of first stator punching.
In addition, for the inner wall correspondence of 1/3 tooth boot portion opens up the scheme of auxiliary tank on stator punching, equally
, adjacent three pieces stator punching is one group, i.e. the 4th stator punching one side identical as the position of first stator punching,
The circumferential direction for realizing auxiliary tank is uniformly distributed, on the other hand, is also beneficial to reduce radial load lowest spatial order component.
In any of the above-described embodiment, it is preferable that further include：Multigroup stator punching section, each group of stator punching section include
Multiple stator punchings, and correspondence is set the auxiliary tank on multiple stator punchings in each group of stator punching section one by one in an axial direction
It sets, wherein multigroup stator punching section in an axial direction docked successively in the same direction from top to bottom by the angle of deflection angular pitch.
In this embodiment, the embodiment being specifically superimposed as another kind, by multiple deviation angles being continuously arranged
Identical stator punching corresponds to the inner wall of 2/3 tooth boot portion on stator punching and opens up auxiliary tank as one group of punching section
Scheme or the inner wall of 1/3 tooth boot portion corresponds to the scheme of auxiliary tank of opening up on stator punching, can be according to the angle of offset
It is divided into three groups of punching sections, three groups of punching sections is then subjected to docking superposition, is equally reached the vibration noise for reducing motor
Purpose.
As illustrated in figs. 7 and 8, electric rotating machine according to an embodiment of the invention, including：What any of the above-described embodiment proposed
Stator core 10 and the winding being set around on stator core 10；Rotor 20 is arranged assembling with the centre bore of motor stator.
It is overlapped by the stator punching to offset, so that the auxiliary tank on the stator punching of offset is in different sides
Position, and then realize the stacking demand that diversified forms can be realized only with a kind of stator punching of specification, on the one hand, due to diameter
The vibration deformation for making stator core 10 generate to component is the main source of electromagnetic noise, auxiliary by being opened up in the tooth boot portion of part
Slot is helped, even if the correspondence between the periphery of rotor and the inner circumferential of motor stator is point-to-area, is remained to by changing
Kind stator slot reduces the deformation of stator core, and then reduce radial electromagnetic force wave most to improve the order of radial electromagnetic force wave
Low spatial order component, to achieve the purpose that reduce the vibration noise of motor.
In the above embodiment, it is preferable that the cross section profile vertical with axis of rotor 20 is by a plurality of opposite centre bore
Circumferentially head and the tail connecting structure is formed for eccentric eccentric arc 204 and the isocentric circular arc 202 concentric with centre bore.
As shown in figure 8, rotor is by multiple rotor iron core laminated formation, the outer profile of each rotor core by it is a plurality of not
The circular arc head and the tail connection composition of concentric, includes the isocentric circular arc 202 concentric with axis hole 208, and eccentric eccentric arc 204
Deng in addition, being further opened with the magnetic slot 206 for housing magnet steel.
In this embodiment, in order to reduce Gas-gap Magnetic Field Resonance Wave, by the cross section profile vertical with axis of rotor 20 by
Circumferentially head and the tail connecting structure is formed the circular arc and the circular arc concentric with centre bore of a plurality of opposite centre bore bias, on the one hand,
In conjunction with the setting of auxiliary tank 1026, be conducive to further decrease Gas-gap Magnetic Field Resonance Wave, on the other hand, by stator core 10
At least the second stator punching 104 is arranged in one end, can make real to greatest extent between stator core 10 and the outer wall of rotor 20
Existing face face corresponds to, and to be conducive to adjust gas using toolings such as clearance gauges, and then is promoted same between stator core 10 and rotor
Heart degree, to achieve the purpose that adjust air gap precision and reduce electromagnetic noise.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as indicating
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be can
Dismantling connection, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In description of the invention, it is to be understood that the instructions such as term "upper", "lower", "left", "right", "front", "rear"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, specific direction must be had, with specific azimuth configuration and operation by not indicating or implying the indicated device or unit,
It is thus impossible to be interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of stator core, which is characterized in that including：
The stator punching of multiple stackings, the stator punching include circumferentially distributed multiple stator tooths, two adjacent described
Stator tooth, which encloses, to be set to form stator slot, and two adjacent stator tooths have angular pitch, and the stator tooth is radially from outer
To it is interior include teeth portion and tooth boot portion successively, multiple tooth boot portions enclose the centre bore for setting and forming the stator punching, adjacent two
Gap between a tooth boot portion limits the notch of the corresponding stator slot,
Wherein, auxiliary tank, in a stack, at least two are offered on the inner wall of the part tooth boot portion on the stator punching
The stator punching circumferentially deflects setting, and deflection angle is the angular pitch.
2. stator core according to claim 1, which is characterized in that
The inner wall correspondence of 2/3 tooth boot portion opens up the auxiliary tank on the stator punching；
Wherein, include multigroup auxiliary tank on the stator punching, auxiliary tank described in each group includes two adjacent described first
Auxiliary tank, there are one the full tooth of stator, the full tooth of stator is that the described of the auxiliary tank is not arranged at interval between every group of auxiliary tank
Stator tooth.
3. stator core according to claim 1, which is characterized in that
The inner wall correspondence of 1/3 tooth boot portion opens up the auxiliary tank on the stator punching；
There are two the full tooth of stator, the full tooth of stator is that the auxiliary tank is not arranged at interval between two adjacent auxiliary tanks
The stator tooth.
4. stator core according to claim 1, which is characterized in that
The stator tooth is symmetrical structure, pair for the auxiliary tank on each stator tooth relative to the stator tooth
Claim center line symmetrical setting.
5. stator core according to claim 4, which is characterized in that
Any one in the auxiliary tank semi-circular groove, rectangular slot, dovetail groove and vee gutter.
6. stator core according to claim 1, which is characterized in that
The width of the notch is W1, and the radial width of the tooth boot portion is H1, and the width of the auxiliary tank is W2, the auxiliary
The radial depth capacity of slot is H2,
Wherein,
7. the stator core according to any one of claim 2 to 6, which is characterized in that
The angle that multiple stator punchings deflect the angular pitch successively in the same direction from top to bottom in an axial direction is laminated.
8. the stator core according to any one of claim 2 to 6, which is characterized in that further include：
Multigroup stator punching section, stator punching section described in each group include multiple stator punchings, and fixed described in each group
The auxiliary tank on multiple stator punchings in sub- punching section is correspondingly arranged one by one in an axial direction,
Wherein, multigroup stator punching section deflect successively in the same direction from top to bottom in an axial direction the angle of the angular pitch into
Row docking.
9. a kind of electric rotating machine, which is characterized in that including：
Motor stator includes such as stator core described in any item of the claim 1 to 8 and on stator core as described in being set around
Winding；
Rotor is arranged assembling with the centre bore of the motor stator.
10. electric rotating machine according to claim 9, which is characterized in that
The rotor cross section profile vertical with axis by a plurality of relatively described centre bore bias eccentric arc and with
Circumferentially head and the tail connecting structure is formed the concentric isocentric circular arc of the centre bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538349.9A CN108512320A (en) | 2018-05-30 | 2018-05-30 | Stator core and electric rotating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538349.9A CN108512320A (en) | 2018-05-30 | 2018-05-30 | Stator core and electric rotating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108512320A true CN108512320A (en) | 2018-09-07 |
Family
ID=63401889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810538349.9A Pending CN108512320A (en) | 2018-05-30 | 2018-05-30 | Stator core and electric rotating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108512320A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531692A (en) * | 2018-11-14 | 2019-03-29 | 宁波极航电器有限公司 | A kind of plastics manufacture punching deburring all-in-one machine |
| CN109732709A (en) * | 2019-02-01 | 2019-05-10 | 杭州精锋园林工具有限公司 | Hard alloy tooth top square tooth type chain saw and control method |
| CN112448491A (en) * | 2020-11-03 | 2021-03-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator core, stator structure, motor, compressor and electric appliance with same |
| WO2022110305A1 (en) * | 2020-11-30 | 2022-06-02 | 安徽美芝精密制造有限公司 | Stator core, stator, permanent magnet synchronous electric motor, compressor, and refrigeration apparatus |
| FR3128073A1 (en) | 2021-10-12 | 2023-04-14 | Nidec Psa Emotors | Stator of rotating electric machine |
| FR3128074A1 (en) | 2021-10-12 | 2023-04-14 | Nidec Psa Emotors | Stator of rotating electric machine |
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| CN103746473A (en) * | 2014-01-13 | 2014-04-23 | 广东美芝精密制造有限公司 | Motor for compressor and compressor with motor |
| CN105846558A (en) * | 2015-01-15 | 2016-08-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and compressor |
| CN107579612A (en) * | 2017-08-30 | 2018-01-12 | 广东威灵电机制造有限公司 | Rotor punching, rotor core and motor |
| CN208571728U (en) * | 2018-05-30 | 2019-03-01 | 广东威灵电机制造有限公司 | Stator core and rotating electric machine |
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| JP2009065833A (en) * | 2008-12-26 | 2009-03-26 | Mitsubishi Electric Corp | Laminated core and manufacturing method thereof |
| CN103746473A (en) * | 2014-01-13 | 2014-04-23 | 广东美芝精密制造有限公司 | Motor for compressor and compressor with motor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531692A (en) * | 2018-11-14 | 2019-03-29 | 宁波极航电器有限公司 | A kind of plastics manufacture punching deburring all-in-one machine |
| CN109732709A (en) * | 2019-02-01 | 2019-05-10 | 杭州精锋园林工具有限公司 | Hard alloy tooth top square tooth type chain saw and control method |
| CN112448491A (en) * | 2020-11-03 | 2021-03-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator core, stator structure, motor, compressor and electric appliance with same |
| WO2022110305A1 (en) * | 2020-11-30 | 2022-06-02 | 安徽美芝精密制造有限公司 | Stator core, stator, permanent magnet synchronous electric motor, compressor, and refrigeration apparatus |
| FR3128073A1 (en) | 2021-10-12 | 2023-04-14 | Nidec Psa Emotors | Stator of rotating electric machine |
| FR3128074A1 (en) | 2021-10-12 | 2023-04-14 | Nidec Psa Emotors | Stator of rotating electric machine |
| WO2023062306A2 (en) | 2021-10-12 | 2023-04-20 | Nidec Psa Emotors | Stator for a rotating electric machine |
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