CN110556956B - Stator assembly and motor with same - Google Patents
Stator assembly and motor with same Download PDFInfo
- Publication number
- CN110556956B CN110556956B CN201810551310.0A CN201810551310A CN110556956B CN 110556956 B CN110556956 B CN 110556956B CN 201810551310 A CN201810551310 A CN 201810551310A CN 110556956 B CN110556956 B CN 110556956B
- Authority
- CN
- China
- Prior art keywords
- slot
- layer
- stator
- winding
- span
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
- H02K3/16—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a stator assembly and a motor with the same, wherein the upper stator assembly comprises a stator core and a stator winding, the stator core is provided with a plurality of stator slots, the stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, each phase of first winding of the stator winding comprises a plurality of first winding parts which are sequentially connected end to end, and each phase of second winding of the stator winding comprises a plurality of second winding parts which are sequentially connected end to end. Therefore, by arranging the span sections with different spans, the potential vector of the stator slot can be balanced, the potential phase angle difference of the slot moment angle can be inhibited, the potential balance among sub-circuits can be finally realized, the internal circulation of the stator winding can be inhibited, the effect of reducing temperature rise is achieved, the circulation is inhibited, the harmonic electromagnetic excitation generated by the circulation can be inhibited, and the vibration and the noise can be greatly inhibited.
Description
Technical Field
The invention relates to the technical field of motor manufacturing, in particular to a stator assembly and a motor with the same.
Background
In the related technology, the stator assembly of the motor is in a wave winding mode, the outermost layer is wound to the innermost layer through waves, the reverse wave is wound to the outermost layer, the flat wire armature needing to be manufactured is various in types, both axial ends of the flat wire armature need to be welded, welding spots are multiple, and in addition, after the flat wire is off-line, the flat wire armature is difficult to accurately fix, the production cost is high, and the manufacturing process difficulty is large. From the analysis of the electrical connection, the wave winding form is that the voltage difference between different layers in the same groove is high, and the layers are easy to break down under high voltage, so that short circuit is caused, and the motor fails.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention provides a stator assembly which can prevent the circulation phenomenon and the failure of the motor.
The invention further provides a motor which comprises the stator assembly.
The invention also provides a stator assembly.
The stator assembly is suitable for a z-slot 2 p-pole m-phase motor, the number of slots per pole per phase is q-z/m/2 p, the number of parallel branches is a, and a is smaller than or equal to q, the stator assembly comprises a stator core and a stator winding, the stator core is provided with a plurality of stator slots, the stator slots are distributed along the circumferential direction of the stator core, the stator slots are respectively a1 st slot, a2 nd slot, …, an ith slot, …, an nth slot and a … th z-th slot in the circumferential direction of the stator core, each stator slot is provided with r slot layers, and the r slot layers are respectively an a-th layer, a b-th layer, …, a j-th layer, … and an r-th layer from the radial inner side to the outer side of the stator core; each phase of first winding of the stator winding comprises a plurality of first winding parts which are sequentially connected end to end, in the first winding parts, the ith slot and the r layer are the starting ends of the first winding parts, the ith-12 slot and the r layer are the termination ends of the first winding parts, the first winding parts comprise a first span section to a fourth span section, and the first span section is from the ith slot and the r layer to the ith-5 slot and the r layer; the second step is from the ith-5 th slot to the ith +1 st slot, the a layer is a winding, and the winding reciprocates between the ith-5 th slot and the ith-47 th slot and is wound from the radial outer side to the radial inner side of the stator core in the second step; the third span section is from the (i + 1) th groove (a) th layer to the (i-6) th groove (a) th layer; the fourth step is from the i-6 th slot a-th layer to the i-12 th slot r-th layer, and in the fourth step, the winding wire reciprocates between the i-6 th slot and the i-12 th slot and is wound from the radial inner side to the radial outer side of the stator core; in the termination section of the first winding, no winding is wound between the second outer layer of the i-6 th slot and the r-th layer of the i-12 th slot of the fourth spanning section; the starting slot of the first winding is a stator slot opposite to the circumferential direction of the ith slot, the outermost layer of the starting slot of the first winding is connected with a first outgoing line, five stator slots are arranged between the termination slot of the first winding and the starting slot of the first winding, and the secondary outer layer of the termination slot of the first winding is connected with a first star point line; each phase of second winding of the stator winding comprises a plurality of second winding parts which are sequentially connected end to end, in the second winding parts, the nth layer of the (n + 1) th slot is the starting end of the second winding part, the nth layer of the (n-11) th slot is the termination end of the second winding part, the second winding part comprises a fifth span section to an eighth span section, and the nth layer of the (n + 1) th slot to the nth layer of the (n-6) th slot is the fifth span section; the nth layer from the nth-6 th slot to the nth slot is the sixth span, and the winding wire reciprocates between the nth-6 th slot and the nth slot and is wound from the radial outer side to the radial inner side of the stator core in the sixth span; the seventh span is from the nth groove layer a to the nth-5 groove layer a; an nth layer from the nth-5 th slot to the nth-11 th slot is the eighth span, and a winding wire reciprocates between the nth-5 th slot and the nth-11 th slot and is wound from the radial inner side to the radial outer side of the stator core in the eighth span; in the termination section of the second routing line; the starting slot of the second winding is a stator slot opposite to the nth slot in the circumferential direction, the outermost layer of the starting slot of the second winding is connected with a second outgoing line, five stator slots are arranged between the termination slot of the second winding and the starting slot of the second winding, and the secondary outer layer of the termination slot of the second winding is connected with a second star point line.
According to the stator assembly disclosed by the embodiment of the invention, by arranging the span sections with different spans, the potential vector of the stator slot can be balanced, the potential phase angle difference of the slot moment angle is inhibited, the potential balance among sub-circuits is finally realized, the internal circulation of the stator winding can be inhibited, the effect of reducing temperature rise is achieved, the harmonic electromagnetic excitation generated by the circulation can be inhibited while the circulation is inhibited, and the vibration and the noise are greatly inhibited.
According to some embodiments of the invention, i ═ n + 1.
According to some embodiments of the present invention, the stator winding includes a plurality of conductor segments, each of the conductor segments including a bent portion and first and second in-slot portions connected to the bent portion, respectively, the first and second in-slot portions of the plurality of conductor segments located in adjacent layers being welded at welding ends.
According to some embodiments of the invention, the conductor segments comprise conductor segments of a first type, conductor segments of a second type and conductor segments of a third type, the pitch between the first in-slot portions and the second in-slot portions of the conductor segments of the first type being y-1 stator slots, the pitch between the first in-slot portions and the second in-slot portions of the conductor segments of the second type being y stator slots, the pitch between the first in-slot portions and the second in-slot portions of the conductor segments of the third type being y +1 stator slots, wherein y is an integer and y is z/2 p.
According to some embodiments of the invention the first type conductor segments are located within the first and seventh spans, the first in-slot portions of the first type conductor segments being located outermost of one stator slot and the second in-slot portions of the first type conductor segments being located outermost of another stator slot, or the first in-slot portions of the first type conductor segments being located innermost of one stator slot and the second in-slot portions of the first type conductor segments being located innermost of another stator slot.
According to some embodiments of the invention, the conductor segments of the second type are located within a second span, a fourth span, a sixth span and an eighth span, the conductor segments of the second type comprising conductor segments of different layers, the conductor segments of different layers having a first in-slot portion located in a middle slot layer of one stator slot, a second in-slot portion located in a middle slot layer of another stator slot, and different layers spanning.
According to some embodiments of the invention, the conductor segments of the third type are located in a third span and a fifth span, the first in-slot portions of the conductor segments of the third type are located in an innermost layer of one stator slot, the second in-slot portions of the conductor segments of the third type are located in an innermost layer of another stator slot, the first in-slot portions of the conductor segments of the third type are located in an outermost layer of one stator slot, and the second in-slot portions of the conductor segments of the third type are located in an outermost layer of another stator slot.
The motor comprises the stator assembly.
According to a specific embodiment of the invention, the stator assembly is suitable for a z-slot 2 p-pole m-phase motor, the number of slots per pole per phase is q-z/m/(2 p), the number of parallel branches is a, a is less than or equal to q, the stator assembly comprises a stator core and a stator winding, the stator core is provided with 48 stator slots, a plurality of stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, the stator slots are respectively a1 st slot, a2 nd slot, … and a 48 th slot, each stator slot is provided with 6 slot layers, and the 6 slot layers are respectively an a-th layer, a b-th layer, a … and an f-th layer from the radial inner side to the outer side of the stator core; each phase of first winding of the stator winding comprises a plurality of first winding parts which are sequentially connected end to end, in the first winding parts, the 1 st slot f-th layer is the starting end of the first winding part, the 37 th slot f-th layer is the terminating end of the first winding part, the first winding part comprises a first span section to a fourth span section, and the f-th layer from the 1 st slot f-th layer to the 44 th slot f-th layer is the first span section; the second step is from 44 th slot (f) th layer to 2 nd slot (a) th layer, and in the second step, the winding wire reciprocates between the 44 th slot and the 2 nd slot and is wound from the radial outer side to the radial inner side of the stator core; the a layer from the 2 nd slot a layer to the 43 rd slot a layer is the third span section; the f-th layer from the 43 rd slot a-th layer to the 37 th slot is the fourth step section in which the winding wire reciprocates between the 43 th slot and the 37 th slot and is wound from the radially inner side to the radially outer side of the stator core; in the termination section of the first routing line; the f-th layer of the 1 st groove is connected with a first outgoing line, and the secondary outer layer of the 7 th groove is connected with a first star point line; each phase of second routing wire of the stator winding comprises a plurality of second winding parts which are sequentially connected end to end, in the second winding parts, the 2 nd slot f-th layer is the starting end of the second winding part, the 38 th slot f-th layer is the termination end of the second winding part, the second winding part comprises a fifth span section to an eighth span section, and the f-th layer from the 2 nd slot f-th layer to the 43 th slot f-th layer is the fifth span section; the sixth step is from the 43 rd slot (f) th layer to the 1 st slot (a) th layer, and in the sixth step, the winding is reciprocated between the 43 th slot and the 1 st slot and wound from the radial outer side to the radial inner side of the stator core; the seventh span is from the 1 st slot, layer a, to the 44 th slot, layer a; the h layer from the 44 th slot to the 38 th slot is the eighth span in which the winding reciprocates between the 44 th slot and the 38 th slot and is wound from the radially inner side to the radially outer side of the stator core; the 8 th groove is connected with a second outgoing line, and the 2 nd groove is connected with the f-th layer of the second star point line.
According to the stator assembly provided by the embodiment of the invention, by arranging the span sections with different spans, the potential vector of the stator slot can be balanced, the potential phase angle difference of the slot moment angle is inhibited, the potential balance among sub-circuits is finally realized, the internal circulation of the stator winding can be inhibited, the effect of reducing temperature rise is achieved, the harmonic electromagnetic excitation generated by the circulation can be inhibited while the circulation is inhibited, and the vibration and the noise are greatly inhibited.
Drawings
FIG. 1 is a schematic diagram of a first routing line according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first winding portion according to an embodiment of the invention;
FIG. 3 is a second routing line schematic according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a second winding portion according to an embodiment of the invention;
FIG. 5 is a first type of conductor segment according to an embodiment of the present invention, wherein a first type of conductor segment is shown;
FIG. 6 is a first type of conductor segments, showing a second type of conductor segments, in accordance with embodiments of the present invention;
FIG. 7 is a second type of conductor segments, showing a third type of conductor segments, in accordance with embodiments of the present invention;
FIG. 8 is a second type of conductor segments, showing a fourth type of conductor segments, in accordance with embodiments of the present invention;
FIG. 9 is a third type of conductor segment according to an embodiment of the present invention, wherein a fifth type of conductor segment is shown;
FIG. 10 is a third type of conductor segment according to embodiments of the present invention, wherein a sixth type of conductor segment is shown;
fig. 11 is a first routing wire wiring diagram according to an embodiment of the present invention;
FIG. 12 is a second routing wire layout diagram according to an embodiment of the present invention;
FIG. 13 is a multiphase second routing wire wiring diagram in accordance with an embodiment of the present invention;
FIG. 14 is a structural schematic diagram of a stator assembly according to an embodiment of the present invention;
FIG. 15 is an enlarged fragmentary view encircled at A in FIG. 14;
fig. 16 is a top view of a stator winding according to an embodiment of the present invention.
Reference numerals:
a stator assembly 100,
A stator winding 10,
A first winding portion 110,
A first span section 111, a second span section 112, a third span section 113, a fourth span section 114,
A second winding portion 120,
A fifth span 121, a sixth span 122, a seventh span 123, an eighth span 124,
A first lead line 130, a first star point line 140,
A second lead-out line 150, a second star point line 160,
A first conductor segment 171, a first conductor segment 1711, a second conductor segment 1712,
Second type conductor segment 172, third type conductor segment 1721, fourth type conductor segment 1722,
A third type conductor segment 173, a fifth type conductor segment 1731, a sixth type conductor segment 1732,
A bent portion 174, a first in-slot portion 175, a second in-slot portion 176, and a weld end 177.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A stator assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1-16. The stator assembly 100 is suitable for a z-slot 2 p-pole m-phase motor, the number of slots of each pole of each phase is q, z/m/(2p), the number of parallel branches is a, a is less than or equal to q, the stator assembly 100 comprises a stator core and a stator winding 10, the stator core is provided with a plurality of stator slots, the stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, the stator slots are respectively a1 st slot, a2 nd slot, …, an ith slot, …, an nth slot and a … th z-th slot, each stator slot is provided with r slot layers, and the r slot layers are respectively an a-th layer, a b-th layer, …, a j-th layer, … and an r-th layer from the radial inner side to the outer side of the stator core;
as shown in fig. 1, the first winding of each phase of the stator winding 10 includes a plurality of first winding portions 110 connected end to end in sequence, in the first winding portion 110, the ith slot and the r layer are the starting ends of the first winding portions 110, the ith-12 slot and the r layer are the terminating ends of the first winding portions 110, the first winding portion 110 includes a first span section 111 to a fourth span section 114, and the first span section 111 is from the ith slot and the r layer to the ith-5 slot; the layer a from the i-5 th slot to the i +1 th slot is a second span section 112, and in the second span section 112, the winding wire reciprocates between the i-5 th slot and the i-47 th slot and is wound from the radial outer side to the radial inner side of the stator core; a third span section 113 is formed from the (i + 1) th groove layer a to the (i-6) th groove layer a; a fourth step 114 from the (a) th layer of the (i-6) th slot to the (r) th layer of the (i-12) th slot, and in the fourth step 114, the winding wire reciprocates between the (i-6) th slot and the (i-12) th slot and is wound from the radial inner side to the radial outer side of the stator core; the starting slot of the first winding is a stator slot opposite to the circumferential direction of the ith slot, the outermost layer of the starting slot of the first winding is connected with the first outgoing line 130, five stator slots exist between the termination slot of the first winding and the starting slot of the first winding, and the secondary outer layer of the termination slot of the first winding is connected with the first star point line 140.
It should be noted that, in the process of counting the number of slots, when a certain slot needs to be determined, the i-th slot may be used as a starting point, when the number is counted to the "i- \ + th" slot, wherein when "-" is between i and x, "" slots are counted in the counterclockwise direction shown in fig. 1, and when "+" is between i and x, "" slots are counted in the clockwise direction shown in fig. 1. For example, when it is necessary to count up to the "i-11" th slot, where "-" is present between i and 11, the "11" slots are counted in the counterclockwise direction shown in fig. 1; for another example, when the number of the "i + 1" th slots is required, wherein "+" is provided between i and 1, the number of "1" slots is counted along the clockwise direction shown in fig. 1.
As shown in fig. 3, each phase of the second routing wire of the stator winding 10 includes a plurality of second winding portions 120 connected end to end in sequence, in the second winding portion 120, the nth layer of the (n + 1) th slot is the starting end of the second winding portion 120, the nth layer of the (n-11) th slot is the terminating end of the second winding portion 120, the second winding portion 120 includes a fifth span section 121 to an eighth span section 124, and the nth layer of the (n + 1) th slot to the nth layer of the (n-6) th slot is a fifth span section 121; the nth layer from the nth-6 th slot to the nth slot is a sixth span 122, and in the sixth span 122, the winding wire reciprocates between the nth-6 th slot and the nth slot and is wound from the radial outer side to the radial inner side of the stator core; a seventh span 123 from the nth groove layer a to the nth-5 groove layer a; an eighth jump 124 from the (a) th layer of the (n-5) th slot to the (r) th layer of the (n-11) th slot, and a winding reciprocating between the (n-5) th slot and the (n-11) th slot and winding from the radially inner side to the radially outer side of the stator core in the eighth jump 124; the starting slot of the second winding is a stator slot opposite to the nth slot in the circumferential direction, the outermost layer of the starting slot of the second winding is connected with the second outgoing line 150, five stator slots exist between the termination slot of the second winding and the starting slot of the second winding, and the secondary outer layer of the termination slot of the second winding is connected with the second star point line 160.
It should be noted that, in the process of counting the number of slots, when a certain slot needs to be determined, the nth slot may be used as a starting point, when the number is required to be counted to the "n- \ + th" slot, wherein when "-" is between n and x, the "" -number of slots are counted in the counterclockwise direction shown in fig. 1, and when "+" is between n and x, the "" -number of slots are counted in the clockwise direction shown in fig. 1. For example, when it is necessary to count up to the "n-11" th slot, where "-" is present between n and 11, the "11" slots are counted in the counterclockwise direction shown in fig. 1; for another example, when the number of the "n + 1" th slots is required, wherein "+" is provided between n and 1, the number of "1" slots is counted along the clockwise direction shown in fig. 1.
It should be explained here that z is the number of stator slots, m is the number of phases and 2p is the number of poles. For example, z may be 24, 48, 72, etc., the number of phases m may be three, two, or single, and the number of pole pairs p may be 8, 4, etc., and may be set according to a specific motor application.
According to the stator assembly 100 of the embodiment of the invention, the winding manner needs fewer coils, and the arrangement manner is convenient for the first star point line 140 and the second outgoing line 150 to be connected and matched so that the stator assembly 100 can meet the design requirements of different parallel branches. In addition, by arranging the span sections with different spans, the potential vector of the stator slot can be balanced, the potential phase angle difference of the slot moment angle can be inhibited, the potential balance among sub-circuits can be finally realized, the internal circulation of the stator winding 20 can be inhibited, the effect of reducing temperature rise can be achieved, the harmonic electromagnetic excitation generated by the circulation can be inhibited while the circulation is inhibited, and the vibration and the noise can be greatly inhibited.
In some embodiments of the invention, i ═ n + 1.
In some embodiments of the present invention, the stator winding 10 includes a plurality of conductor segments, each of which includes a bent portion 174 and first and second in- slot portions 175 and 176 connected to the bent portion 174, respectively, and the first and second in- slot portions 175 and 176 of the plurality of conductor segments, which are located at adjacent layers, are weld-connected at a weld end 177.
In some embodiments of the present invention, the conductor segments comprise a first type of conductor segment 171, a second type of conductor segment 172 and a third type of conductor segment 173, the pitch between the first in-slot portion 175 and the second in-slot portion 176 of the first type of conductor segment 171 is y-1 stator slots, the pitch between the first in-slot portion 175 and the second in-slot portion 176 of the second type of conductor segment 172 is y stator slots, and the pitch between the first in-slot portion 175 and the second in-slot portion 176 of the third type of conductor segment 173 is y +1 stator slots, where y is an integer and y is z/2 p.
In some embodiments of the invention, the first-type conductor segments 171 are located within the first and seventh spans 111, 123, the first in-slot portions 175 of the first-type conductor segments 171 are located outermost of one stator slot and the second in-slot portions 176 of the first-type conductor segments 171 are located outermost of another stator slot, or the first in-slot portions 175 of the first-type conductor segments 171 are located innermost of one stator slot and the second in-slot portions 176 of the first-type conductor segments 171 are located innermost of another stator slot.
In some embodiments of the present invention, the conductor segments 172 of the second type are located within the second span 112, the fourth span 114, the sixth span 122 and the eighth span 124, the conductor segments 172 of the second type comprise conductor segments of different layers, the conductor segments of different layers are located at the middle slot layer of one stator slot, the first in-slot portion 175 is located at the middle slot layer of another stator slot, and the different layers span.
In some embodiments of the invention, the conductor segments 173 of the third type are located in the third and fifth spans 113 and 121, the first in-slot portions 175 of the conductor segments 173 of the third type are located in the innermost layer of one stator slot, the second in-slot portions 176 of the conductor segments 173 of the third type are located in the innermost layer of another stator slot, or the first in-slot portions 175 of the conductor segments 173 of the third type are located in the outermost layer of one stator slot, and the second in-slot portions 176 of the conductor segments 173 of the third type are located in the outermost layer of another stator slot.
Specifically, the first-type conductor segment 171 includes a first-type conductor segment 1711 and a second-type conductor segment 1712 (refer to fig. 5 and 6), the second-type conductor segment 172 includes a third-type conductor segment 1721 and a fourth-type conductor segment 1712 (refer to fig. 7 and 8), and the third-type conductor segment 173 includes a fifth-type conductor segment 1731 and a sixth-type conductor segment 1732 (refer to fig. 5 and 6).
An electric machine according to an embodiment of the present invention includes the stator assembly 100 described above. This stator module 10010 sets up and installs on the motor, and this stator module 100 can make first lead-out wire 130 and first star point line 140 equipartition put at weld end 177, can make full use of weld end 177's height, also can prevent to produce circulation phenomenon, can prevent that the motor from becoming invalid, and then can guarantee the operational reliability of motor.
According to the stator assembly 100 of one embodiment of the present invention, the stator assembly 100 is suitable for a z-slot 2 p-pole m-phase motor, the number of slots per pole per phase is q ═ z/m/2p, the number of parallel branches is a, a ≦ q, the stator assembly 100 includes a stator core and a stator winding 10, the stator core has 48 stator slots, the stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, the stator slots are respectively a1 st slot, a2 nd slot, …, and a 48 th slot, each stator slot has 6 slot layers, and the 6 slot layers are respectively an a-th layer, a b-th layer, …, and an f-th layer from the radial inside to the outside of the stator core.
Each phase of first winding of the stator winding 10 includes four first winding portions 110 connected end to end in sequence, in the first winding portion 110, the 1 st slot fth layer is the starting end of the first winding portion 110, the 37 th slot fth layer is the terminating end of the first winding portion 110, the first winding portion 110 includes a first span section 111 to a fourth span section 114, and the fth layer from the 1 st slot fth layer to the 44 th slot fth layer is the first span section 111; a second step 112 is formed from the 44 th slot (f) th layer to the 2 nd slot (a) th layer, and in the second step 112, the winding wire reciprocates between the 44 th slot and the 2 nd slot and is wound from the radial outer side to the radial inner side of the stator core; the a-th layer from the 2 nd groove to the 43 rd groove is a third span section 113; the layer a from the 43 th slot to the 37 th slot is a fourth step 114, and in the fourth step 114, the winding wire reciprocates between the 43 th slot and the 37 th slot and is wound from the radially inner side to the radially outer side of the stator core.
The f-th layer of the 1 st groove is connected to the first lead wire 130, and the second outer layer of the 7 th groove is connected to the first star point line 140.
As shown in fig. 1, the winding manner of the first winding of each phase of the stator winding 10 is as follows:
1f->44f->2e->44d->2c->44b->2a->43a->37b->43c->37d->43e->37f->32f->38e->32d->38c->32b->38a->31a->25b->31c->25d->31e->25f->20->26e->20d->26c->20b->26a->19a->13b->19c->13d->19e->13f->8f->14e->8d->14c->8b->14a->7a->1b->7c->1d->7e。
it should be noted that, at the first winding, the first three first winding portions 110 located at the start of the first winding are wound in the same manner, and the first in-slot portions 175 and the second in-slot portions 176 of the conductor segment are wound in the same number of slots at the corresponding spans in the three first winding portions 110.
Each phase of the second routing wire of the stator winding 10 includes a plurality of second winding portions 120 connected end to end in sequence, in the second winding portion 120, the 2 nd slot f-th layer is the starting end of the second winding portion 120, the 38 th slot f-th layer is the terminating end of the second winding portion 120, the second winding portion 120 includes a fifth span section 121 to an eighth span section 124, and the f-th layer from the 2 nd slot f-th layer to the 43 th slot f-th layer is the fifth span section 121; a sixth step 122 is formed from the 43 rd slot (f) th layer to the 1 st slot (a) th layer, and in the sixth step 122, the winding wire reciprocates between the 43 th slot and the 1 st slot and is wound from the radial outer side to the radial inner side of the stator core; a seventh span 123 from the 1 st slot, layer a, to the 44 th slot, layer a; the h layer from the 44 th slot to the 38 th slot is an eighth jump 124, and in the eighth jump 124, the winding is reciprocated between the 44 th slot and the 38 th slot and wound from the radially inner side to the radially outer side of the stator core.
The 8 th slot is connected to the second lead-out wire 150, and the 2 nd slot is connected to the f-th layer 160.
As shown in fig. 3, the winding manner of the second routing wire of each phase of the stator winding 10 is as follows:
2f->43f->1e->43d->1c->43b->1a->44a->38b->44c->38d->44e->38f->31f->37e->31d->37c->31b->37a->32a->26b->32c->26d->32e->26f->19f->25e->19d->25c->19b->25a->20a->14b->20c->14d->20e->14f->7f->13e->7d->13c->7b->13a->8a->2b->8c->2d->8e。
it should be noted that, at the second winding line, the first three second winding portions 120 located at the start of the second winding line are wound in the same manner, and the first in-slot portions 175 and the second in-slot portions 176 of the conductor segment are wound in the same number of slots at the positions of the corresponding spans in the three second winding portions 120.
As shown in fig. 11 to 13, in the stator winding 10, a1, B1, and C1 are first winding lead wires, X1, Y1, and Z1 are star points of the first winding, a2, B2, and C2 are second winding lead wires, and X2, Y2, and Z2 are star points of the second winding.
According to the stator assembly 100 of the embodiment of the invention, the stator winding 10 is in multiple paths, and the conductor segments with different spans are arranged, so that the potential vector of the stator slot can be balanced, the potential phase angle difference of the slot moment angle can be inhibited, the potential balance among the sub-paths can be finally realized, the internal circulation of the stator winding 10 can be inhibited, the effect of reducing the temperature rise can be realized, the circulation can be inhibited, the harmonic electromagnetic excitation generated by the circulation can be inhibited, and the vibration and the noise can be greatly inhibited. Through the cooperation of the stator core and the stator winding 10, the first outgoing line 130 and the first star point line 140 are both arranged at the welding end 177, so that the height of the welding end 177 can be fully utilized, the circulation phenomenon can be prevented, and the failure of the motor can be prevented.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A stator assembly is suitable for a z-slot 2 p-pole m-phase motor, the number of slots per pole per phase is q = z/m/(2p), the number of parallel branches is a, a is less than or equal to q, the stator assembly comprises a stator core and a stator winding, the stator core is provided with a plurality of stator slots, the stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, the stator slots are respectively a1 st slot, a2 nd slot, …, an ith slot, …, an nth slot and a … th z-th slot, each stator slot is provided with r slot layers, and the r slot layers are respectively an a-th layer, a b-th layer, a …, a j-th layer, a … and an r-th layer from the radial inner side to the outer side of the stator core;
the first winding part is characterized in that the first route winding of each phase of the stator winding comprises a plurality of first winding parts which are sequentially connected end to end, in the first winding part, the ith slot and the r layer are the starting ends of the first winding parts, the ith-12 slot and the r layer are the termination ends of the first winding parts, the first winding parts comprise a first span section to a fourth span section, and the first span section is from the ith slot and the r layer to the (i-5) slot and the first span section; the second step section is from the ith-5 th slot to the ith +1 th slot, the ith layer is the second step section, and in the second step section, the winding wire reciprocates between the ith-5 th slot and the ith +1 th slot and is wound from the radial outer side to the radial inner side of the stator core; the third span section is from the (i + 1) th groove (a) th layer to the (i-6) th groove (a) th layer; the fourth step is from the i-6 th slot a-th layer to the i-12 th slot r-th layer, and in the fourth step, the winding wire reciprocates between the i-6 th slot and the i-12 th slot and is wound from the radial inner side to the radial outer side of the stator core;
the starting slot of the first winding is a stator slot opposite to the circumferential direction of the ith slot, the outermost layer of the starting slot of the first winding is connected with a first outgoing line, five stator slots are arranged between the termination slot of the first winding and the starting slot of the first winding, and the secondary outer layer of the termination slot of the first winding is connected with a first star point line;
each phase of second winding of the stator winding comprises a plurality of second winding parts which are sequentially connected end to end, in the second winding parts, the nth layer of the (n + 1) th slot is the starting end of the second winding part, the nth layer of the (n-11) th slot is the termination end of the second winding part, the second winding part comprises a fifth span section to an eighth span section, and the nth layer of the (n + 1) th slot to the nth layer of the (n-6) th slot is the fifth span section; the nth layer from the nth-6 th slot to the nth slot is the sixth span, and the winding wire reciprocates between the nth-6 th slot and the nth slot and is wound from the radial outer side to the radial inner side of the stator core in the sixth span; the seventh span is from the nth groove layer a to the nth-5 groove layer a; an nth layer from the nth-5 th slot to the nth-11 th slot is the eighth span, and a winding wire reciprocates between the nth-5 th slot and the nth-11 th slot and is wound from the radial inner side to the radial outer side of the stator core in the eighth span;
the starting slot of the second winding is a stator slot with the circumferentially opposite n +1 th slot, the outermost layer of the starting slot of the second winding is connected with a second outgoing line, five stator slots are arranged between the termination slot of the second winding and the starting slot of the second winding, the secondary outer layer of the termination slot of the second winding is connected with a second star point line, and n = i.
2. The stator assembly according to claim 1, wherein the stator winding comprises a plurality of conductor segments, each of the conductor segments comprising a bend and first and second in-slot portions connected to the bend, respectively, the first and second in-slot portions of the plurality of conductor segments located at adjacent layers being welded together at weld ends.
3. The stator assembly according to claim 2, characterized in that the conductor segments comprise a first type of conductor segment, a second type of conductor segment and a third type of conductor segment, the pitch between the first in-slot portion and the second in-slot portion of the first type of conductor segment being y-1 stator slots, the pitch between the first in-slot portion and the second in-slot portion of the second type of conductor segment being y stator slots, the pitch between the first in-slot portion and the second in-slot portion of the third type of conductor segment being y +1 stator slots, where y is an integer and y = z/2 p.
4. The stator assembly according to claim 3, characterized in that the conductor segments of the first type are located within the first and seventh spans, the first in-slot portions of the conductor segments of the first type being located outermost of one stator slot and the second in-slot portions of the conductor segments of the first type being located outermost of another stator slot, or the first in-slot portions of the conductor segments of the first type being located innermost of one stator slot and the second in-slot portions of the conductor segments of the first type being located innermost of another stator slot.
5. The stator assembly of claim 3, wherein the conductor segments of the second type are located within a second span, a fourth span, a sixth span, and an eighth span,
the second type conductor segment comprises conductor segments of different layers, the first in-slot part of the conductor segment of the different layer is positioned in the middle slot layer of one stator slot, the second in-slot part is positioned in the middle slot layer of the other stator slot, and the different layers span.
6. The stator assembly according to claim 3, characterized in that the conductor segments of the third type are located at a third span and a fifth span, the first in-slot portions of the conductor segments of the third type being located at the innermost layer of one stator slot and the second in-slot portions of the conductor segments of the third type being located at the innermost layer of another stator slot, or the first in-slot portions of the conductor segments of the third type being located at the outermost layer of one stator slot and the second in-slot portions of the conductor segments of the third type being located at the outermost layer of another stator slot.
7. An electrical machine comprising a stator assembly according to any of claims 1-6.
8. A stator assembly is suitable for a z-slot 2 p-pole m-phase motor, the number of slots per pole per phase is q = z/m/(2p), the number of parallel branches is a, a is less than or equal to q, the stator assembly comprises a stator core and a stator winding, the stator core is provided with 48 stator slots, a plurality of stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, the stator slots are respectively a1 st slot, a2 nd slot, … and a 48 th slot, each stator slot is provided with 6 slot layers, and the 6 slot layers are respectively an a-th layer, a b-th layer, … and an f-th layer from the radial inner side to the outer side of the stator core;
the first winding part is characterized in that the first winding of each phase of the stator winding comprises a plurality of first winding parts which are sequentially connected end to end, in the first winding part, the 1 st slot f-th layer is the starting end of the first winding part, the 37 th slot f-th layer is the termination end of the first winding part, the first winding part comprises a first span section to a fourth span section, and the f-th layer from the 1 st slot f-th layer to the 44 th slot f-th layer is the first span section; the second step is from 44 th slot (f) th layer to 2 nd slot (a) th layer, and in the second step, the winding wire reciprocates between the 44 th slot and the 2 nd slot and is wound from the radial outer side to the radial inner side of the stator core; the a layer from the 2 nd slot a layer to the 43 rd slot a layer is the third span section; the f-th layer from the 43 rd slot a-th layer to the 37 th slot is the fourth step section in which the winding wire reciprocates between the 43 th slot and the 37 th slot and is wound from the radially inner side to the radially outer side of the stator core;
the f-th layer of the 1 st groove is connected with a first outgoing line, and the secondary outer layer of the 7 th groove is connected with a first star point line;
each phase of second routing wire of the stator winding comprises a plurality of second winding parts which are sequentially connected end to end, in the second winding parts, the 2 nd slot f-th layer is the starting end of the second winding part, the 38 th slot f-th layer is the termination end of the second winding part, the second winding part comprises a fifth span section to an eighth span section, and the f-th layer from the 2 nd slot f-th layer to the 43 th slot f-th layer is the fifth span section; the sixth step is from the 43 rd slot (f) th layer to the 1 st slot (a) th layer, and in the sixth step, the winding is reciprocated between the 43 th slot and the 1 st slot and wound from the radial outer side to the radial inner side of the stator core; the seventh span is from the 1 st slot, layer a, to the 44 th slot, layer a; the h layer from the 44 th slot to the 38 th slot is the eighth span in which the winding reciprocates between the 44 th slot and the 38 th slot and is wound from the radially inner side to the radially outer side of the stator core;
the second star point line is connected to the second outer layer of the 8 th groove, and the second outgoing line is connected to the f-th layer of the 2 nd groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551310.0A CN110556956B (en) | 2018-05-31 | 2018-05-31 | Stator assembly and motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551310.0A CN110556956B (en) | 2018-05-31 | 2018-05-31 | Stator assembly and motor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110556956A CN110556956A (en) | 2019-12-10 |
| CN110556956B true CN110556956B (en) | 2021-12-07 |
Family
ID=68734185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810551310.0A Active CN110556956B (en) | 2018-05-31 | 2018-05-31 | Stator assembly and motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110556956B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114337036B (en) * | 2022-02-22 | 2022-11-18 | 小米汽车科技有限公司 | Flat wire stator and motor |
| CN115037068B (en) * | 2022-06-15 | 2023-04-07 | 广东汇天航空航天科技有限公司 | Flat wire stator and motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348274A (en) * | 2013-07-24 | 2015-02-11 | 通用汽车环球科技运作有限责任公司 | Stator assembly with winding sets having hairpins from multiple hairpin layers |
| CN205489877U (en) * | 2016-03-17 | 2016-08-17 | 哈尔滨理工大学 | Asymmetric stator winding of six branch road three -phase alternating current motor branch roads in 360 grooves |
| CN106410995A (en) * | 2015-07-31 | 2017-02-15 | 株式会社电装 | Stator for rotating electric machine |
| JP2017158256A (en) * | 2016-02-29 | 2017-09-07 | 株式会社小松製作所 | Wound structure of rotary electric machine stator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10321956B4 (en) * | 2002-05-15 | 2013-09-12 | Remy Inc. | Windings of rectangular copper hairpins in multiple sets for electrical machines |
-
2018
- 2018-05-31 CN CN201810551310.0A patent/CN110556956B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348274A (en) * | 2013-07-24 | 2015-02-11 | 通用汽车环球科技运作有限责任公司 | Stator assembly with winding sets having hairpins from multiple hairpin layers |
| CN106410995A (en) * | 2015-07-31 | 2017-02-15 | 株式会社电装 | Stator for rotating electric machine |
| JP2017158256A (en) * | 2016-02-29 | 2017-09-07 | 株式会社小松製作所 | Wound structure of rotary electric machine stator |
| CN205489877U (en) * | 2016-03-17 | 2016-08-17 | 哈尔滨理工大学 | Asymmetric stator winding of six branch road three -phase alternating current motor branch roads in 360 grooves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110556956A (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5532319B2 (en) | Stator for rotating electric machine and method for manufacturing the same | |
| CN110556954B (en) | Stator assembly and motor | |
| JP4146379B2 (en) | Rotating electric machine stator | |
| JP5948850B2 (en) | Wave winding of rotating electric machine | |
| JP2011109895A (en) | Stator of electric rotating machine | |
| JP5267595B2 (en) | Rotating electrical machine stator | |
| US20190386533A1 (en) | Stator | |
| CN110556952B (en) | Stator module and motor | |
| US20210351651A1 (en) | Electrical machine | |
| CN110556932B (en) | Stator module and motor | |
| CN110556956B (en) | Stator assembly and motor with same | |
| US20220311298A1 (en) | Motor | |
| CN110556938B (en) | Stator assembly and motor | |
| CN110971040B (en) | Stator assembly and motor with same | |
| CN110556935B (en) | Stator assembly and motor | |
| CN110556934B (en) | Stator assembly and motor with same | |
| JP5704418B2 (en) | Rotating electric machine stator | |
| CN110556957B (en) | Stator assembly and motor | |
| CN110556937B (en) | Stator assembly and motor | |
| CN110971021B (en) | Stator assembly and motor with same | |
| JP6048160B2 (en) | Wave winding of rotating electric machine | |
| JP5163255B2 (en) | Rotating electric machine stator | |
| CN110556955B (en) | Stator assembly and motor | |
| CN110556936B (en) | Stator assembly and motor | |
| CN110556933B (en) | Stator module and motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |