CN110556953B - Stator module and motor - Google Patents

Stator module and motor Download PDF

Info

Publication number
CN110556953B
CN110556953B CN201810551859.XA CN201810551859A CN110556953B CN 110556953 B CN110556953 B CN 110556953B CN 201810551859 A CN201810551859 A CN 201810551859A CN 110556953 B CN110556953 B CN 110556953B
Authority
CN
China
Prior art keywords
slot
layer
winding
span
stator
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
Application number
CN201810551859.XA
Other languages
Chinese (zh)
Other versions
CN110556953A (en
Inventor
陈园辉
游斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201810551859.XA priority Critical patent/CN110556953B/en
Priority to PCT/CN2019/089306 priority patent/WO2019228458A1/en
Publication of CN110556953A publication Critical patent/CN110556953A/en
Application granted granted Critical
Publication of CN110556953B publication Critical patent/CN110556953B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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. Stator module includes stator core and stator winding, and stator core has a plurality of stator slots, and a plurality of stator slots distribute along stator core's circumferential direction, all have r slot layers in every stator slot, and r slot layers are arranged along stator core's radial direction. The first winding part comprises a first span section to a sixth span section, and the second winding part comprises a seventh span section to a twelfth span section. Each phase of the second winding of the stator winding comprises a third winding part and a fourth winding part which are connected end to end, the third winding part comprises a thirteenth span section to an eighteenth span section, and the fourth winding part comprises a nineteenth span section to a twenty-fourth span section. According to the stator assembly disclosed by the invention, the stator winding adopts a plug wire type forming mode, the arrangement mode is simple and convenient to realize, and a user can conveniently adjust a circuit.

Description

Stator module and motor
Technical Field
The invention relates to the technical field of motors, in particular to a stator assembly and a motor.
Background
In the related art, the armature of the rotating electrical machine is connected in a wave winding manner, that is, from the outermost layer to the innermost layer, and then in a reverse direction to the outermost layer. The armature connection mode and the implementation mode have the advantages that the types of the flat wire armatures needing to be manufactured are too many, both axial ends of the flat wire armatures need to be welded, the number of welding points is large, and in addition, the flat wires are difficult to accurately fix after being off-line, so that the production cost is high, and the difficulty of the manufacturing process is large. From the aspect of electrical connection, the wave winding mode has the advantages that the voltage difference between different layers in the same groove is high, and when the wave winding mode is used under high voltage, the layers are easy to break down, 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 stator assembly has the advantages of simple structure and high reliability.
The invention also provides a motor which is provided with the stator assembly.
The invention also provides a stator assembly which has the advantages of simple structure and high reliability.
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 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, the stator slots are respectively a 1 st slot, a 2 nd slot, …, an ith slot, …, an nth slot, … and a 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 radial outer side of the stator core; the first winding part is used for constructing an initial section of the first winding, and the second winding part is used for constructing a termination section of the first winding; in the first winding portion, an ith slot nth layer is a starting end of the first winding portion, an (i-24) th slot nth layer is a terminating end of the first winding portion, the first winding portion includes first to sixth spans from the ith slot nth layer to the ith slot nth layer, the first span is from the ith slot nth layer to the ith slot nth layer, and a winding wire reciprocates between the ith slot and the (i-6) th slot and is wound from a radially outer side to a radially inner side of the stator core in the first span; the second span section is from the ith slot a layer to the (i-5) th slot a layer; an a-th layer from an (i-5) th slot to an (i-11) th slot is a third step in which a winding wire reciprocates between the (i-5) th slot and the (i-11) th slot and the winding wire is wound from a radially inner side to a radially outer side of the stator core; a fourth step from the (i-11) th layer to the (i-11) th a layer, in which a winding wire reciprocates between the (i-11) th slot and the (i-17) th slot and the winding wire is wound from a radially outer side to a radially inner side of the stator core; the (i-11) th groove a layer and the (i-18) th groove a layer are fifth spans; the a-th layer from the (i-18) th slot and the r-th layer from the (i-24) th slot are sixth jumps in which windings reciprocate between the (i-18) th slot and the (i-24) th slot and are wound from the radially inner side to the radially outer side of the stator core; in the second winding portion, an (i-24) th slot r layer is a starting end of the second winding portion, an (i-42) th slot second outer layer is a terminating end of the second winding portion, the second winding portion includes a seventh span to a twelfth span, the (i-24) th slot r layer to the (i-24) th slot a layer is a seventh span, and in the seventh span, a winding wire is wound to and fro between the (i-24) th slot and the (i-30) th slot and from a radially outer side to a radially inner side of the stator core; the eighth hop from the (i-24) th slot level a to the (i-29) th slot level a; the (i-29) th slot (a) th layer to the (i-35) th slot (r) th layer is the ninth span within which the winding reciprocates between the (i-29) th slot and the (i-35) th slot and the winding is wound from the radially inner side to the radially outer side of the stator core; the layer a from the (i-35) th slot to the (i-35) th slot is a tenth jump section in which a winding reciprocates between the (i-35) th slot and the (i-41) th slot and the winding is wound from a radially outer side to a radially inner side of the stator core; an eleventh span from the (i-35) th groove layer a to the (i-42) th groove layer a; an a-th layer from the (i-42) th slot to the (i-42) th slot sub-outer layer is a twelfth jump section in which a winding wire reciprocates between the (i-42) th slot and the i-th slot and the winding wire is wound from a radially inner side to a radially outer side of the stator core; the ith groove is an initial groove of the first winding, and the outermost layer of the initial groove of the first winding is connected with a first outgoing line; 5 stator slots are arranged between the termination slot of the first winding and the initial 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 third winding part and a fourth winding part which are connected end to end, the third winding part is constructed into an initial section of the second winding, and the fourth winding part is constructed into a termination section of the second winding; in the third winding portion, the (n-47) th slot r layer is a starting end of the third winding portion, the (n-23) th slot r layer is a terminating end of the third winding portion, the third winding portion includes thirteenth to eighteenth spans from the (n-47) th slot r layer to the (n-47) th slot a layer is a thirteenth span in which a winding wire is wound to and fro between the (n-47) th slot and the (n-5) th slot from a radially outer side to a radially inner side of the stator core; the fourteenth span is from the (n-47) th groove layer a to the (n-6) th groove layer a; the (n-6) th slot (a) th layer to the (n-12) th slot (r) th layer is the fifteenth jump section in which the winding wire reciprocates between the (n-6) th slot and the (n-12) th slot and the winding wire is wound from the radially inner side to the radially outer side of the stator core; a sixteenth jump from the (n-12) th slot (r) th layer to the (n-12) th slot (a) th layer, in which a winding wire reciprocates between the (n-12) th slot and the (n-18) th slot and the winding wire is wound from a radially outer side to a radially inner side of the stator core; the seventeenth span is from the (n-12) th groove a layer to the (n-17) th groove a layer; the (n-17) th slot a-th layer to the (n-23) th slot r-th layer are the eighteenth jump section in which the winding wire reciprocates between the (n-17) th slot and the (n-23) th slot and is wound from the radially inner side to the radially outer side of the stator core; in the fourth winding portion, an (n-23) th slot r layer is a starting end of the fourth winding portion, an (n-41) th slot sub-outer layer is a terminating end of the fourth winding portion, the fourth winding portion includes nineteenth to twenty-fourth spans, an a layer from the (n-23) th slot r layer to the (n-23) th slot is a nineteenth span, and a winding wire reciprocates between the (n-23) th and (n-29) th slots and is wound from a radially outer side to a radially inner side of the stator core in the nineteenth span; the twentieth span is from the (n-23) th groove a-th layer to the (n-30) th groove a-th layer; the (n-30) th slot a-th layer to the (n-36) th slot r-th layer are the twenty-first spans in which the winding wire reciprocates between the (n-30) th slot and the (n-36) th slot and the winding wire is wound from the radially inner side to the radially outer side of the stator core; the layer a from the (n-36) th slot to the (n-36) th slot is a twenty-second step, and in the twenty-second step, the winding is reciprocated between the (n-36) th slot and the (n-42) th slot and wound from the radial outer side to the radial inner side of the stator core; the twenty-third span is from the (n-36) th groove a layer to the (n-41) th groove a layer; the twenty-fourth step section from the (n-41) th slot a-th layer to the (n-41) th slot sub-outer layer, in which the winding wire reciprocates between the (n-41) th slot and the (n-47) th slot and the winding wire is wound from the radially inner side to the radially outer side of the stator core; the (n-47) th groove is an initial groove of the second routing wire, and the outermost layer of the initial groove of the second routing wire is connected with a second outgoing wire; 5 stator slots are arranged between the termination slot of the second winding and the initial 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.
According to the stator assembly of the embodiment of the invention, in the winding process, the pitches of the plurality of spans are set to be different from those of other spans, 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 circuit windings can be realized, the internal circulation of the stator winding can be inhibited, the low temperature rise effect is achieved, the circulation can be inhibited, the harmonic electromagnetic excitation generated by the circulation can be inhibited, and the vibration and the noise of the motor during the operation can be greatly inhibited.
According to some embodiments of the invention, n ═ i.
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.
In some embodiments of the present invention, the conductor segments include a first-type conductor segment, a second-type conductor segment, and a third-type conductor segment, a pitch between the first in-slot portion and the second in-slot portion of the first-type conductor segment is (y-1) of the stator slots, a pitch between the first in-slot portion and the second in-slot portion of the second-type conductor segment is y of the stator slots, and a pitch between the first in-slot portion and the second in-slot portion of the third-type conductor segment is (y +1) of the stator slots, where y is an integer and y is z/2 p.
In some examples of the invention, the first conductor segments are located at the second, eighth, seventeenth and twenty-third spans, the first in-slot portions of the first conductor segments are located at the innermost layer of one of the stator slots, and the second in-slot portions of the first conductor segments are located at the innermost layer of another one of the stator slots.
In some examples of the invention, the second type of conductor segment is located at the first span, the third span, the fourth span, the sixth span, the seventh span, the ninth span, the tenth span, the twelfth span, the thirteenth span, the fifteenth span, the sixteenth span, the eighteenth span, the nineteenth span, the twenty-first span, the twenty-second span, the twenty-fourth span; the conductor segments of the second type include conductor segments of the same layer and conductor segments of different layers, the first in-slot portions of the conductor segments of the same layer are located at outermost layers of one of the stator slots, the second in-slot portions are located at outermost layers of another one of the stator slots, or the first in-slot portions of the conductor segments of the same layer are located at innermost layers of one of the stator slots, the second in-slot portions are located at innermost layers of another one of the stator slots, the first in-slot portions of the conductor segments of different layers are located at intermediate slot layers of one of the stator slots, the second in-slot portions are located at intermediate slot layers of another one of the stator slots, and the different layers cross over.
In some examples of the invention, the conductor segments of the third type are located at the fifth, eleventh, fourteenth, twentieth spans, the first in-slot portions of the conductor segments of the third type are located at the innermost layer of one of the stator slots, and the second in-slot portions of the conductor segments of the third type are located at the innermost layer of another one of the stator slots.
An electric machine according to an embodiment of the invention comprises a stator assembly as described above.
According to the motor provided by the embodiment of the invention, in the winding process, the pitches of the plurality of spans are set to be different from those of other spans, 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 circuit windings can be realized, the internal circulation of the stator winding can be inhibited, the low-temperature rise effect is achieved, the circulation can be inhibited, the harmonic electromagnetic excitation generated by the circulation can be inhibited, and the vibration and the noise of the motor during operation can be greatly inhibited.
According to the stator assembly provided by the embodiment of the invention, the stator assembly 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/(2 p), the number of parallel branches is a, and a is not more than q, the stator assembly comprises a stator core and a stator winding, the stator core is provided with 48 stator slots, the 48 stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, a plurality of stator slots are respectively a 1 st slot, a 2 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 c-th layer, a d-th layer, an e-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 used for constructing a starting section of the first winding part, and the second winding part is used for constructing a termination section of the first winding; in the first winding part, the 1 st slot fth layer is the starting end of the first winding part, and the 25 th slot fth layer is the terminating end of the first winding part; the first winding portion includes first to sixth spans, the first span being from the 1 st slot (f) th layer to the 1 st slot (a) th layer, and within the first span, a winding wire reciprocates between the 1 st slot and the 43 th slot and is wound from a radially outer side to a radially inner side of the stator core; the second span segment is from the 1 st slot a layer to the 44 th slot a layer; the layer a from the 44 th slot to the 38 th slot is the third step section in which the winding wire 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 fourth step from the 38 th layer f to the 38 th layer a, in which the winding wire reciprocates between the 38 th slot and the 32 nd slot and the winding wire is wound from the radially outer side to the radially inner side of the stator core; the 38 th groove a layer and the 31 st groove a layer are the fifth span section; a sixth step from the 31 st slot, the a th layer and the 25 th slot, the winding reciprocating between the 31 st slot and the 25 th slot and winding from the radial inner side to the radial outer side of the stator core in the sixth step; in the second winding part, the 25 th layer of the slot is the starting end of the second winding part, and the 7 th second outer layer of the slot is the terminal end of the second winding part; the second winding portion includes seventh to twelfth spans; the seventh step is from the 25 th slot (f) th layer to the 25 th slot (a) th layer, and in the seventh step, the winding wire reciprocates between the 25 th slot and the 19 th slot and is wound from the radially outer side to the radially inner side of the stator core; the eighth span is from the 25 th slot layer a to the 20 th slot layer a; the nth step from the 20 th slot to the 14 th slot is the ninth step, and in the ninth step, the winding is reciprocated between the 20 th slot and the 14 th slot and wound from the radial inner side to the radial outer side of the stator core; the tenth step is from the 14 th slot (f) th layer to the 14 th slot (a) th layer, and in the tenth step, the winding wire reciprocates between the 14 th slot and the 8 th slot and is wound from the radially outer side to the radially inner side of the stator core; the eleventh span is from the 14 th slot, layer a, to the 7 th slot, layer a; the twelfth jump from the 7 th slot a-th layer to the 7 th slot sub-outer layer, in which the winding reciprocates between the 7 th slot and the 1 st slot and is wound from the radially inner side to the radially outer side of the stator core; the 1 st groove is an initial groove of the first winding, and the outermost layer of the initial groove of the first winding is connected with a first outgoing line; 5 stator slots are arranged between the termination slot of the first winding and the initial 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 third winding part and a fourth winding part which are connected end to end, the third winding part is constructed into an initial section of the second winding, and the fourth winding part is constructed into a termination section of the second winding; in the third winding part, the 2 nd slot fth layer is the starting end of the third winding part, and the 26 th slot fth layer is the terminating end of the third winding part; the third winding portion includes thirteenth through eighteenth spans; the thirteenth jump from slot 2, layer f to slot 2, layer a, within which the winding reciprocates between slot 2 and slot 44 and the winding from the radially outer side to the radially inner side of the stator core; the fourteenth span is from the 2 nd slot (a) th layer to the 43 rd slot (a) th layer; the fifteenth step is from the 43 rd slot a-th layer to the 37 th slot f-th layer, and in the fifteenth step, the winding is reciprocated between the 43 th slot and the 37 th slot and wound from the radial inner side to the radial outer side of the stator core; the sixteenth step from the 37 th slot (f) th layer to the 37 th slot (a) th layer is that in which the winding reciprocates between the 37 th slot and the 31 st slot and is wound from the radially outer side to the radially inner side of the stator core; the seventeenth span is from the 37 th groove layer a to the 32 th groove layer a; the layer f from the 32 th slot a to the 26 th slot is the eighteenth jump section in which the winding wire reciprocates between the 32 th slot and the 26 th slot and is wound from the radially inner side to the radially outer side of the stator core; in the fourth winding part, the 26 th slot fth layer is the starting end of the fourth winding part, and the 8 th slot secondary outer layer is the terminal end of the fourth winding part; the fourth winding portion includes nineteenth to twenty-fourth spans, the nineteenth span being the layer a from the 26 th slot to the 26 th slot, within which a winding wire reciprocates between the 26 th and 20 th slots and is wound from a radially outer side to a radially inner side of the stator core; the twentieth span is from the 26 th slot a layer to the 19 th slot a layer; the f-th layer from the 19 th slot to the 13 th slot is the twenty-first step in which the winding wire reciprocates between the 19 th slot and the 13 th slot and is wound from the radially inner side to the radially outer side of the stator core; the second slot No. f is the twenty-second step from the 13 th slot No. a to the 13 th slot No. a, and the winding wire reciprocates between the 13 th slot and the 7 th slot and is wound from the radially outer side to the radially inner side of the stator core in the twenty-second step; the twenty-third span is from the 13 th slot layer a to the 8 th slot layer a; the second outer layer from the 8 th slot to the 8 th slot is the twenty-fourth spanning section, and in the twenty-fourth spanning section, the winding wire reciprocates between the 8 th slot and the 2 nd slot and is wound from the radial inner side to the radial outer side of the stator core, wherein the 2 nd slot is an initial slot of the second winding wire, and the outermost layer of the initial slot of the second winding wire is connected with a second outgoing wire; 5 stator slots are arranged between the termination slot of the second winding and the initial 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.
According to the stator assembly of the embodiment of the invention, in the winding process, the pitches of the plurality of spans are set to be different from those of other spans, 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 circuit windings can be realized, the internal circulation of the stator winding can be inhibited, the low temperature rise effect is achieved, the circulation can be inhibited, the harmonic electromagnetic excitation generated by the circulation can be inhibited, and the vibration and the noise of the motor during the operation can be greatly inhibited.
Drawings
FIG. 1 is a winding diagram of a first winding of a stator assembly according to an embodiment of the present invention;
FIG. 2 is a winding diagram of a second winding of a stator assembly according to an embodiment of the present invention;
fig. 3 is a structural schematic view of a stator core of a stator assembly according to an embodiment of the present invention.
Reference numerals:
the stator core 10, the stator slots 100, the slot layers 101,
the first routing line 200 is a first routing line,
a first winding portion 210, a first span 211, a second span 212, a third span 213, a fourth span 214, a fifth span 215, a sixth span 216, a first lead 217,
a second winding portion 220, a seventh span 221, an eighth span 222, a ninth span 223, a tenth span 224, an eleventh span 225, a twelfth span 226, a first star point line 227,
the second routing line 300 is provided on the first routing line,
a third winding portion 310, a thirteenth span 311, a fourteenth span 312, a fifteenth span 313, a sixteenth span 314, a seventeenth span 315, an eighteenth span 316, a second outgoing line 317,
a fourth winding portion 320, a nineteenth span 321, a twentieth span 322, a twenty-first span 323, a twenty-second span 324, a twenty-third span 325, a twenty-fourth span 326, and a second dotted line 327.
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.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to the stator assembly provided by the embodiment of the invention, the stator assembly is suitable for a z-slot 2 p-pole m-phase motor, the number of slots of each pole and each phase is q-z/m/(2 p), the number of parallel branches is a, and a is less than or equal to q. It should be explained here that z is the number of stator slots 100, 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.
As shown in fig. 1 to 3, the stator assembly includes a stator core 10 and a stator winding, the stator core 10 has a plurality of stator slots 100, the plurality of stator slots 100 are distributed along a circumferential direction of the stator core 10, in the circumferential direction of the stator core 10, the plurality of stator slots 100 are respectively a 1 st slot, a 2 nd slot, …, an i-th slot, …, an n-th slot, … and a z-th slot, each stator slot 100 has r slot layers 101 therein, and the r slot layers 101 are respectively an a-th layer, a b-th layer, …, a j-th layer, … and an r-th layer in a direction from a radial inner side to an outer side of the stator core 10.
As shown in fig. 1, the first winding part 200 of each phase of the stator winding includes a first winding portion 210 and a second winding portion 220 connected end to end, the first winding portion 210 configures a start section of the first winding 200, and the second winding portion 220 configures an end section of the first winding 200. In the first winding portion 210, the ith slot nth layer is a start end of the first winding portion 210, the (i-24) th slot nth layer is a termination end of the first winding portion 210, the first winding portion 210 includes first to sixth spans 211 to 216, the ith slot nth layer from the ith slot nth layer to the ith slot nth layer is the first span 211, and in the first span 211, the winding wire reciprocates between the ith slot and the (i-6) th slot and is wound from a radially outer side to a radially inner side of the stator core 10. From the ith slot level a to the (i-5) th slot level a is a second hop section 212. The a-th layer from the (i-5) th slot to the (i-11) th slot is a third step 213, and the winding wire reciprocates between the (i-5) th slot and the (i-11) th slot and is wound from the radially inner side to the radially outer side of the stator core 10 in the third step 213. The (i-11) th to (i-11) th layers are fourth steps 214, and in the fourth steps 214, the winding wire is reciprocated between the (i-11) th slot and the (i-17) th slot and wound from the radially outer side to the radially inner side of the stator core 10. The (i-11) th slot level a and the (i-18) th slot level a are the fifth hop 215. The a-th layer from the (i-18) th slot and the r-th layer from the (i-24) th slot are sixth jumps 216, and within the sixth jumps 216, the windings reciprocate between the (i-18) th slot and the (i-24) th slot and are wound from the radially inner side to the radially outer side of the stator core 10.
As shown in fig. 1, in the second winding portion 220, the (i-24) th slot r layer is the starting end of the second winding portion 220, the (i-42) th slot second outer layer is the terminating end of the second winding portion 220, the second winding portion 220 includes seventh spans 221 to 226, the (i-24) th slot r layer to the (i-24) th slot a layer is the seventh span 221, and in the seventh span 221, the winding wire is reciprocated between the (i-24) th slot and the (i-30) th slot and wound from the radially outer side to the radially inner side of the stator core 10. From the (i-24) th slot, layer a, to the (i-29) th slot, layer a, is an eighth hop 222. The a-th layer from the (i-29) th slot to the (i-35) th slot is a ninth span 223, and in the ninth span 223, the winding reciprocates between the (i-29) th slot and the (i-35) th slot and is wound from the radially inner side to the radially outer side of the stator core 10. The layer f from the (i-35) th slot to the (i-35) th slot is a tenth jump 224, and within the tenth jump 224, the winding reciprocates between the (i-35) th slot and the (i-41) th slot and is wound from the radially outer side to the radially inner side of the stator core 10. From the (i-35) th groove a-th layer to the (i-42) th groove a-th layer is an eleventh span 225. The a-th layer from the (i-42) th slot to the (i-42) th slot sub-outer layer is a twelfth jump 226, and the winding wire reciprocates between the (i-42) th slot and the i-th slot and is wound from the radially inner side to the radially outer side of the stator core 10 within the twelfth jump 226.
The ith slot is an initial slot of the first routing wire 200, and the outermost layer of the initial slot of the first routing wire 200 is connected to the first outgoing wire 217. There are 5 stator slots 100 between the termination slot of the first winding 200 and the initial slot of the first winding 200, and the second outer layer of the termination slot of the first winding 200 is connected to the first star point line 227.
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. 3, and when "+" is between i and x, "" slots are counted in the clockwise direction shown in fig. 3. 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. 3; 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. 3.
As shown in fig. 2, each phase of the second routing wire 300 of the stator winding includes a third winding portion 310 and a fourth winding portion 320 connected end to end, the third winding portion 310 configuring a start section of the second routing wire 300, and the fourth winding portion 320 configuring a termination section of the second routing wire 300. In the third winding portion 310, the (n-47) th slot r layer is a starting end of the third winding portion 310, the (n-23) th slot r layer is a terminating end of the third winding portion 310, the third winding portion 310 includes thirteenth to eighteenth spans 311 to 316, the (n-47) th slot r layer to the (n-47) th slot a layer is a thirteenth span 311, and in the thirteenth span 311, the winding wire reciprocates between the (n-47) th and (n-5) th slots and is wound from a radially outer side to a radially inner side of the stator core 10. The fourteenth span 312 runs from the (n-47) th slot level a to the (n-6) th slot level a. The a-th layer from the (n-6) -th slot to the (n-12) -th slot is a fifteenth jump 313, and in the fifteenth jump 313, the winding reciprocates between the (n-6) -th slot and the (n-12) -th slot and is wound from the radially inner side to the radially outer side of the stator core 10. The nth layer from the (n-12) th slot to the (n-12) th slot is a sixteenth jump 314, and within the sixteenth jump 314, the winding reciprocates between the (n-12) th slot and the (n-18) th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The seventeenth hop 315 is from the (n-12) th groove a layer to the (n-17) th groove a layer. The (a) th layer from the (n-17) th slot to the (n-23) th slot is an eighteenth jump 316, and the winding wire reciprocates between the (n-17) th slot and the (n-23) th slot and is wound from the radially inner side to the radially outer side of the stator core 10 within the eighteenth jump 316.
As shown in fig. 2, in the fourth winding portion 320, the (n-23) th slot r layer is the starting end of the fourth winding portion 320, the (n-41) th slot sub-outer layer is the terminating end of the fourth winding portion 320, the fourth winding portion 320 includes nineteenth to twenty-fourth spans 321 to 326, the a-th layer from the (n-23) th slot r layer to the (n-23) th slot a layer is the nineteenth span 321, and in the nineteenth span 321, the winding wire reciprocates between the (n-23) th and (n-29) th slots and is wound from the radially outer side to the radially inner side of the stator core 10. From the (n-23) th groove, layer a, to the (n-30) th groove, layer a, is the twentieth span 322. The a-th layer from the (n-30) th slot to the (n-36) th slot is a twenty-first jump 323, and within the twenty-first jump 323, the winding reciprocates between the (n-30) th slot and the (n-36) th slot and is wound from the radially inner side to the radially outer side of the stator core 10. The nth layer from the (n-36) th slot to the (n-36) th slot is a twenty-second step 324, and within the twenty-second step 324, the winding is reciprocated between the (n-36) th slot and the (n-42) th slot and wound from the radially outer side to the radially inner side of the stator core 10. The a-th layer from the (n-36) th groove to the (n-41) th groove is a twenty-third span 325. The a-th slot from the (n-41) th slot to the (n-41) th slot sub-outer layer is a twenty-fourth step 326, and in the twenty-fourth step 326, the winding wire reciprocates between the (n-41) th slot and the (n-47) th slot and is wound from the radially inner side to the radially outer side of the stator core 10.
Among them, the (n-47) th slot is an initial slot of the second routing line 300, and the outermost layer of the initial slot of the second routing line 300 is connected to the second lead-out line 317. There are 5 stator slots 100 between the termination slot of the second routing wire 300 and the initial slot of the second routing wire 300, and the second star point line 327 is connected to the second outer layer of the termination slot of the second routing wire 300.
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 counted to the "n- \ + th" slot, wherein when "-" is needed between n and x, "" slots are counted in the counterclockwise direction shown in fig. 3, and when "+" is needed between n and x, "" slots are counted in the clockwise direction shown in fig. 3. For example, when it is necessary to count up to the "n-6" th slot, where "-" is present between n and 6, the "6" slots are counted in the counterclockwise direction shown in fig. 3; for another example, when the number of "n + 7" th slots is required, wherein "+" is provided between n and 7, the number of "7" slots is counted along the clockwise direction shown in fig. 3.
According to the stator assembly of the embodiment of the invention, in the winding process, the pitches of the plurality of spans are set to be different from those of other spans, so that the potential vector of the stator slot 100 can be balanced, the potential phase angle difference of the slot moment angle can be restrained, the potential balance among circuit windings can be realized, the internal circulation of the stator winding can be restrained, the low temperature rise effect can be realized, the harmonic electromagnetic excitation generated by the circulation can be restrained while the circulation is restrained, and the vibration and the noise of the motor during the operation can be greatly restrained.
Comparing fig. 1 and 2, n-i is shown, according to some embodiments of the present invention. Therefore, the first winding 200 and the second winding 300 of each phase can be arranged more compactly and reasonably, the winding structure of the stator winding can be optimized, and the working performance of the stator winding can be improved.
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 weld-connected at a weld end. The conductor section is simple in structure, convenient to form, few in required equipment, easy to produce in batches, capable of enabling the welding end to be located on the same side of the stator core 10 and convenient to weld. Stator winding adopts plug wire formula shaping mode, and the mode of arranging is simple, convenient realization, and only one end has the welding point, and welding process is simple, and the user of also being convenient for adjusts the circuit, and in addition, because the ripples is different around the mode, the flat line voltage difference between the adjacent cell layer in the same inslot is little, can effectively reduce the motor insulation and puncture the risk to can improve the reliability of motor.
As shown in fig. 1-2, in some embodiments of the present invention, 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 100, 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 100, and 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 100, wherein y is an integer and y is z/2 p. For example, y may be 6. Therefore, winding can be achieved through the first conductor section, the second conductor section and the third conductor section, the conductor sections are few in types, the forming process is convenient to achieve, required equipment is few, and batch production is easy. And the cross mixed winding is realized by changing the span of the inner coil, so that the current circulation is avoided, and the problems of unbalanced voltage and power imbalance of two paths are solved. In addition, the conductor sections are multiple, potential vectors of the phase separation grooves are balanced through long-short distance change, potential phase angle difference of groove moment angles is restrained, finally, potential balance among circuits is achieved, circulation inside the winding can be restrained, and the low temperature rise effect is achieved.
As shown in fig. 1-2, in some examples of the invention, the first type conductor segments are located at the second span 212, the eighth span 222, the seventeenth span 315 and the twenty third span 325, the first in-slot portions of the first type conductor segments are located at the innermost layer of one stator slot 100 and the second in-slot portions of the first type conductor segments are located at the innermost layer of another stator slot 100. Therefore, the coil span is changed to carry out cross mixed winding, so that current circulation is avoided, and the problems of unbalance of two paths of voltage and power imbalance are solved.
As shown in fig. 1-2, in some examples of the invention, the second type of conductor segment is located at a first span 211, a third span 213, a fourth span 214, a sixth span 216, a seventh span 221, a ninth span 223, a tenth span 224, a twelfth span 226, a thirteenth span 311, a fifteenth span 313, a sixteenth span 314, an eighteenth span 316, a nineteenth span 321, a twenty-first span 323, a twenty-second span 324, and a twenty-fourth span 326. The conductor segments of the second type comprise conductor segments of the same layer and conductor segments of different layers, the first in-slot portions of the conductor segments of the same layer being located outermost in one stator slot 100 and the second in-slot portions being located outermost in another stator slot 100, or the first in-slot portions of the conductor segments of the same layer being located innermost in one stator slot 100 and the second in-slot portions being located innermost in another stator slot 100, the first in-slot portions of the conductor segments of different layers being located in an intermediate slot layer 101 of one stator slot 100 and the second in-slot portions being located in an intermediate slot layer 101 of another stator slot 100, and the different layers spanning. Therefore, the coil span is changed to carry out cross mixed winding, so that current circulation is avoided, and the problems of unbalance of two paths of voltage and power imbalance are solved.
As shown in fig. 1-2, in some examples of the invention, the conductor segments of the third type are located in the fifth span 215, the eleventh span 225, the fourteenth span 312 and the twentieth span 322, the first in-slot portions of the conductor segments of the third type are located in the innermost layer of one stator slot 100 and the second in-slot portions of the conductor segments of the third type are located in the innermost layer of another stator slot 100. Therefore, the coil span is changed to carry out cross mixed winding, so that current circulation is avoided, and the problems of unbalance of two paths of voltage and power imbalance are solved.
The motor comprises the stator assembly.
According to the motor of the embodiment of the invention, in the winding process, the pitches of the plurality of spans are set to be different from those of other spans, so that the potential vector of the stator slot 100 can be balanced, the potential phase angle difference of the slot moment angle can be restrained, the potential balance among circuit windings can be realized, the internal circulation of the stator winding can be restrained, the low temperature rise effect can be achieved, the harmonic electromagnetic excitation generated by the circulation can be restrained while the circulation is restrained, and the vibration and the noise of the motor during the operation can be greatly restrained.
According to the stator assembly provided by the embodiment of the invention, the stator assembly is suitable for a z-slot 2 p-pole m-phase motor, the number of slots of each pole and each phase is q-z/m/(2 p), the number of parallel branches is a, and a is less than or equal to q. It should be explained here that z is the number of stator slots 100, 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.
As shown in fig. 1 to 3, the stator assembly includes a stator core 10 and a stator winding, the stator core 10 has 48 stator slots 100, the 48 stator slots 100 are distributed along a circumferential direction of the stator core 10, in the circumferential direction of the stator core 10, the plurality of stator slots 100 are respectively a 1 st slot, a 2 nd slot, …, and a 48 th slot, each stator slot 100 has 6 slot layers 101, and the 6 slot layers 101 are respectively an a-th layer, a b-th layer, a c-th layer, a d-th layer, an e-th layer, and an f-th layer in a direction from a radial inner side to an outer side of the stator core 10.
As shown in fig. 1, the first winding part 200 of each phase of the stator winding includes a first winding portion 210 and a second winding portion 220 connected end to end, the first winding portion 210 configures a start section of the first winding 200, and the second winding portion 220 configures an end section of the first winding 200. In the first winding portion 210, the 1 st slot fth layer is a start end of the first winding portion 210, and the 25 th slot fth layer is a termination end of the first winding portion 210. The first winding portion 210 includes first to sixth spans 211 to 216, the f-th layer from the 1 st slot to the a-th layer from the 1 st slot being the first span 211, and the winding wire reciprocates between the 1 st slot and the 43 th slot and is wound from the radially outer side to the radially inner side of the stator core 10 within the first span 211. The a-th layer from the 1 st slot to the 44 th slot is a second span 212. The layer a from the 44 th slot to the 38 th slot is a third step 213, and in the third step 213, the winding wire 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 10. The fourth step 214 is formed from the 38 th layer f to the 38 th layer a, and in the fourth step 214, the winding wire reciprocates between the 38 th slot and the 32 nd slot and is wound from the radially outer side to the radially inner side of the stator core 10. The 38 th slot a-th layer and the 31 st slot a-th layer are fifth spans 215. The a-th layer from the 31 st slot and the f-th layer from the 25 th slot are sixth steps 216, and in the sixth steps 216, the winding is reciprocated between the 31 st slot and the 25 th slot and wound from the radially inner side to the radially outer side of the stator core 10.
As shown in fig. 1, in the second winding portion 220, the 25 th slot fth layer is the starting end of the second winding portion 220, and the 7 th slot second outer layer is the terminating end of the second winding portion 220. The second winding portion 220 includes seventh to twelfth spans 221 to 226. The layer f from the 25 th slot to the 25 th slot is a seventh jump 221, and in the seventh jump 221, the winding reciprocates between the 25 th slot and the 19 th slot and is wound from the radially outer side to the radially inner side of the stator core 10. From the 25 th slot, layer a, to the 20 th slot, layer a, is an eighth hop 222. The f-th layer from the 20 th slot a-th layer to the 14 th slot is a ninth span 223, and in the ninth span 223, the winding reciprocates between the 20 th slot and the 14 th slot and is wound from the radially inner side to the radially outer side of the stator core 10. The layer f from the 14 th slot to the 14 th slot is a tenth jump 224, and in the tenth jump 224, the winding wire reciprocates between the 14 th slot and the 8 th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The eleventh span 225 runs from the 14 th groove a-th layer to the 7 th groove a-th layer. The a-th layer from the 7 th slot to the 7 th slot is a twelfth jump 226, and in the twelfth jump 226, the winding reciprocates between the 7 th slot and the 1 st slot and is wound from the radially inner side to the radially outer side of the stator core 10.
The 1 st slot is an initial slot of the first routing wire 200, and an outermost layer of the initial slot of the first routing wire 200 is connected to the first outgoing wire 217. There are 5 stator slots 100 between the termination slot of the first winding 200 and the initial slot of the first winding 200, and the second outer layer of the termination slot of the first winding 200 is connected to the first star point line 227.
As shown in fig. 2, each phase of the second routing wire 300 of the stator winding includes a third winding portion 310 and a fourth winding portion 320 connected end to end, the third winding portion 310 configuring a start section of the second routing wire 300, and the fourth winding portion 320 configuring a termination section of the second routing wire 300. In the third winding portion 310, the 2 nd slot fth layer is a start end of the third winding portion 310, and the 26 th slot fth layer is a termination end of the third winding portion 310. Third winding portion 310 includes thirteenth through eighteenth spans 311 through 316. The layer f from the 2 nd slot to the 2 nd slot is a thirteenth jump 311, and in the thirteenth jump 311, the winding reciprocates between the 2 nd slot and the 44 th slot and is wound from the radially outer side to the radially inner side of the stator core 10. The a-th layer from the 2 nd slot a-th layer to the 43 rd slot a-th layer is a fourteenth span 312. The layer a from the 43 th slot to the 37 th slot is a fifteenth jump 313, and in the fifteenth jump 313, the winding 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 10. The layer f from the 37 th slot to the 37 th slot is a sixteenth jump 314, and in the sixteenth jump 314, the winding reciprocates between the 37 th slot and the 31 st slot and is wound from the radially outer side to the radially inner side of the stator core 10. The seventeenth hop 315 is from the 37 th slot a-th layer to the 32 th slot a-th layer. The layer f from the 32 th slot a to the 26 th slot is an eighteenth jump 316, and in the eighteenth jump 316, the winding wire reciprocates between the 32 th slot and the 26 th slot and is wound from the radially inner side to the radially outer side of the stator core 10.
As shown in fig. 2, in the fourth winding portion 320, the 26 th slot fth layer is a start end of the fourth winding portion 320, and the 8 th slot sub-outer layer is a termination end of the fourth winding portion 320. The fourth winding portion 320 includes nineteenth to twenty-fourth spans 321 to 326, the nineteenth span 321 from the f-th layer of the 26 th slot to the a-th layer of the 26 th slot, and the winding wire reciprocates between the 26 th and 20 th slots and is wound from the radially outer side to the radially inner side of the stator core 10 within the nineteenth span 321. From the 26 th slot, layer a, to the 19 th slot, layer a, is a twentieth hop 322. The ith layer from the 19 th slot to the fth layer from the 19 th slot is a twenty-first step 323, and in the twenty-first step 323, the winding wire reciprocates between the 19 th slot and the 13 th slot and is wound from the radially inner side to the radially outer side of the stator core 10. The layer f from the 13 th slot to the 13 th slot is a twenty-second step 324, and in the twenty-second step 324, the winding is reciprocated between the 13 th slot and the 7 th slot and wound from the radially outer side to the radially inner side of the stator core 10. From the 13 th slot, layer a, to the 8 th slot, layer a, is a twenty-third hop 325. The a-th layer from the 8 th slot to the 8 th slot is a twenty-fourth spanning section 326, and in the twenty-fourth spanning section 326, the winding wire reciprocates between the 8 th slot and the 2 nd slot and is wound from the radial inner side to the radial outer side of the stator core 10, wherein the 2 nd slot is an initial slot of the second routing wire 300, and the outermost layer of the initial slot of the second routing wire 300 is connected to the second lead wire 317. There are 5 stator slots 100 between the termination slot of the second routing wire 300 and the initial slot of the second routing wire 300, and the second star point line 327 is connected to the second outer layer of the termination slot of the second routing wire 300.
According to the stator assembly of the embodiment of the invention, in the winding process, the pitches of the plurality of spans are set to be different from those of other spans, so that the potential vector of the stator slot 100 can be balanced, the potential phase angle difference of the slot moment angle can be restrained, the potential balance among circuit windings can be realized, the internal circulation of the stator winding can be restrained, the low temperature rise effect can be realized, the harmonic electromagnetic excitation generated by the circulation can be restrained while the circulation is restrained, and the vibration and the noise of the motor during the operation can be greatly restrained. In addition, the stator winding adopts a plug wire type forming mode, the arrangement mode is simple and convenient to realize, only one end of the stator winding is provided with a welding point, the welding process is simple, a user can adjust the circuit conveniently, in addition, the voltage difference of flat wires between adjacent groove layers 101 in the same groove is small due to different wave winding modes, the insulation breakdown risk of the motor can be effectively reduced, and the reliability of the motor can be improved.
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 (9)

1. The stator assembly 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 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 a 1 st slot, a 2 nd slot, …, an ith slot, …, an nth slot, … and a 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;
the stator winding is characterized in that each phase of first winding of the stator winding comprises a first winding part and a second winding part which are connected end to end, the first winding part constructs a starting section of the first winding, and the second winding part constructs a termination section of the first winding;
in the first winding portion, an ith slot nth layer is a starting end of the first winding portion, an (i-24) th slot nth layer is a terminating end of the first winding portion, the first winding portion includes first to sixth spans from the ith slot nth layer to the ith slot nth layer, the first span is from the ith slot nth layer to the ith slot nth layer, and a winding wire reciprocates between the ith slot and the (i-6) th slot and is wound from a radially outer side to a radially inner side of the stator core in the first span; the second span section is from the ith slot a layer to the (i-5) th slot a layer; an a-th layer from an (i-5) th slot to an (i-11) th slot is a third step in which a winding wire reciprocates between the (i-5) th slot and the (i-11) th slot and the winding wire is wound from a radially inner side to a radially outer side of the stator core; a fourth step from the (i-11) th layer to the (i-11) th a layer, in which a winding wire reciprocates between the (i-11) th slot and the (i-17) th slot and the winding wire is wound from a radially outer side to a radially inner side of the stator core; the (i-11) th groove a layer and the (i-18) th groove a layer are fifth spans; the a-th layer from the (i-18) th slot and the r-th layer from the (i-24) th slot are sixth jumps in which windings reciprocate between the (i-18) th slot and the (i-24) th slot and are wound from the radially inner side to the radially outer side of the stator core;
in the second winding portion, an (i-24) th slot r layer is a starting end of the second winding portion, an (i-42) th slot second outer layer is a terminating end of the second winding portion, the second winding portion includes a seventh span to a twelfth span, the (i-24) th slot r layer to the (i-24) th slot a layer is a seventh span, and in the seventh span, a winding wire is wound to and fro between the (i-24) th slot and the (i-30) th slot and from a radially outer side to a radially inner side of the stator core; the eighth hop from the (i-24) th slot level a to the (i-29) th slot level a; the (i-29) th slot (a) th layer to the (i-35) th slot (r) th layer is the ninth span within which the winding reciprocates between the (i-29) th slot and the (i-35) th slot and the winding is wound from the radially inner side to the radially outer side of the stator core; the layer a from the (i-35) th slot to the (i-35) th slot is a tenth jump section in which a winding reciprocates between the (i-35) th slot and the (i-41) th slot and the winding is wound from a radially outer side to a radially inner side of the stator core; an eleventh span from the (i-35) th groove layer a to the (i-42) th groove layer a; an a-th layer from the (i-42) th slot to the (i-42) th slot sub-outer layer is a twelfth jump section in which a winding wire reciprocates between the (i-42) th slot and the i-th slot and the winding wire is wound from a radially inner side to a radially outer side of the stator core;
the ith groove is an initial groove of the first winding, and the outermost layer of the initial groove of the first winding is connected with a first outgoing line; 5 stator slots are arranged between the termination slot of the first winding and the initial 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 third winding part and a fourth winding part which are connected end to end, the third winding part is constructed into an initial section of the second winding, and the fourth winding part is constructed into a termination section of the second winding;
in the third winding portion, the (n-47) th slot r layer is a starting end of the third winding portion, the (n-23) th slot r layer is a terminating end of the third winding portion, the third winding portion includes thirteenth to eighteenth spans from the (n-47) th slot r layer to the (n-47) th slot a layer is a thirteenth span in which a winding wire is wound to and fro between the (n-47) th slot and the (n-5) th slot from a radially outer side to a radially inner side of the stator core; the fourteenth span is from the (n-47) th groove layer a to the (n-6) th groove layer a; the (n-6) th slot (a) th layer to the (n-12) th slot (r) th layer is the fifteenth jump section in which the winding wire reciprocates between the (n-6) th slot and the (n-12) th slot and the winding wire is wound from the radially inner side to the radially outer side of the stator core; a sixteenth jump from the (n-12) th slot (r) th layer to the (n-12) th slot (a) th layer, in which a winding wire reciprocates between the (n-12) th slot and the (n-18) th slot and the winding wire is wound from a radially outer side to a radially inner side of the stator core; the seventeenth span is from the (n-12) th groove a layer to the (n-17) th groove a layer; the (n-17) th slot a-th layer to the (n-23) th slot r-th layer are the eighteenth jump section in which the winding wire reciprocates between the (n-17) th slot and the (n-23) th slot and is wound from the radially inner side to the radially outer side of the stator core;
in the fourth winding portion, an (n-23) th slot r layer is a starting end of the fourth winding portion, an (n-41) th slot sub-outer layer is a terminating end of the fourth winding portion, the fourth winding portion includes nineteenth to twenty-fourth spans, an a layer from the (n-23) th slot r layer to the (n-23) th slot is a nineteenth span, and a winding wire reciprocates between the (n-23) th and (n-29) th slots and is wound from a radially outer side to a radially inner side of the stator core in the nineteenth span; the twentieth span is from the (n-23) th groove a-th layer to the (n-30) th groove a-th layer; the (n-30) th slot a-th layer to the (n-36) th slot r-th layer are the twenty-first spans in which the winding wire reciprocates between the (n-30) th slot and the (n-36) th slot and the winding wire is wound from the radially inner side to the radially outer side of the stator core; the layer a from the (n-36) th slot to the (n-36) th slot is a twenty-second step, and in the twenty-second step, the winding is reciprocated between the (n-36) th slot and the (n-42) th slot and wound from the radial outer side to the radial inner side of the stator core; the twenty-third span is from the (n-36) th groove a layer to the (n-41) th groove a layer; the twenty-fourth step section from the (n-41) th slot a-th layer to the (n-41) th slot sub-outer layer, in which the winding wire reciprocates between the (n-41) th slot and the (n-47) th slot and the winding wire is wound from the radially inner side to the radially outer side of the stator core;
the (n-47) th groove is an initial groove of the second routing wire, and the outermost layer of the initial groove of the second routing wire is connected with a second outgoing wire; 5 stator slots are arranged between the termination slot of the second winding and the initial 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.
2. The stator assembly of claim 1 wherein n ═ i.
3. 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.
4. The stator assembly according to claim 3, wherein the conductor segments comprise a first type of conductor segment, a second type of conductor segment, and a third type of conductor segment, a pitch between the first in-slot portions and the second in-slot portions of the first type of conductor segment is (y-1) of the stator slots, a pitch between the first in-slot portions and the second in-slot portions of the second type of conductor segment is y of the stator slots, and a pitch between the first in-slot portions and the second in-slot portions of the third type of conductor segment is (y +1) of the stator slots, wherein y is an integer and y is z/2 p.
5. The stator assembly according to claim 4, wherein said first conductor segment is located at said second span, said eighth span, said seventeenth span, and said twenty-third span, said first in-slot portion of said first conductor segment is located at an innermost layer of one of said stator slots, and said second in-slot portion of said first conductor segment is located at an innermost layer of another of said stator slots.
6. The stator assembly of claim 4, wherein the second type of conductor segment is located at the first span, the third span, the fourth span, the sixth span, the seventh span, the ninth span, the tenth span, the twelfth span, the thirteenth span, the fifteenth span, the sixteenth span, the eighteenth span, the nineteenth span, the twenty-first span, the twenty-second span, the twenty-fourth span; the conductor segments of the second type include conductor segments of the same layer and conductor segments of different layers, the first in-slot portions of the conductor segments of the same layer are located at outermost layers of one of the stator slots, the second in-slot portions are located at outermost layers of another one of the stator slots, or the first in-slot portions of the conductor segments of the same layer are located at innermost layers of one of the stator slots, the second in-slot portions are located at innermost layers of another one of the stator slots, the first in-slot portions of the conductor segments of different layers are located at intermediate slot layers of one of the stator slots, the second in-slot portions are located at intermediate slot layers of another one of the stator slots, and the different layers cross over.
7. The stator assembly according to claim 4, wherein said conductor segments of said third type are located at said fifth span, said eleventh span, said fourteenth span, said twentieth span, said first in-slot portions of said conductor segments of said third type are located at an innermost layer of one of said stator slots, and said second in-slot portions of said conductor segments of said third type are located at an innermost layer of another of said stator slots.
8. An electrical machine comprising a stator assembly according to any of claims 1-7.
9. The stator assembly 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, and a is not more than q, the stator assembly comprises a stator core and a stator winding, the stator core is provided with 48 stator slots, the 48 stator slots are distributed along the circumferential direction of the stator core, in the circumferential direction of the stator core, a plurality of stator slots are respectively a 1 st slot, a 2 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 layer, a b layer, a c layer, a d layer, an e layer and an f layer from the radial inner side to the outer side of the stator core;
the stator winding is characterized in that each phase of first winding of the stator winding comprises a first winding part and a second winding part which are connected end to end, the first winding part constructs a starting section of the first winding part, and the second winding part constructs a termination section of the first winding;
in the first winding part, the 1 st slot fth layer is the starting end of the first winding part, and the 25 th slot fth layer is the terminating end of the first winding part; the first winding portion includes first to sixth spans, the first span being from the 1 st slot (f) th layer to the 1 st slot (a) th layer, and within the first span, a winding wire reciprocates between the 1 st slot and the 43 th slot and is wound from a radially outer side to a radially inner side of the stator core; the second span segment is from the 1 st slot a layer to the 44 th slot a layer; the layer a from the 44 th slot to the 38 th slot is the third step section in which the winding wire 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 fourth step from the 38 th layer f to the 38 th layer a, in which the winding wire reciprocates between the 38 th slot and the 32 nd slot and the winding wire is wound from the radially outer side to the radially inner side of the stator core; the 38 th groove a layer and the 31 st groove a layer are the fifth span section; a sixth step from the 31 st slot, the a th layer and the 25 th slot, the winding reciprocating between the 31 st slot and the 25 th slot and winding from the radial inner side to the radial outer side of the stator core in the sixth step;
in the second winding part, the 25 th layer of the slot is the starting end of the second winding part, and the 7 th second outer layer of the slot is the terminal end of the second winding part; the second winding portion includes seventh to twelfth spans; the seventh step is from the 25 th slot (f) th layer to the 25 th slot (a) th layer, and in the seventh step, the winding wire reciprocates between the 25 th slot and the 19 th slot and is wound from the radially outer side to the radially inner side of the stator core; the eighth span is from the 25 th slot layer a to the 20 th slot layer a; the nth step from the 20 th slot to the 14 th slot is the ninth step, and in the ninth step, the winding is reciprocated between the 20 th slot and the 14 th slot and wound from the radial inner side to the radial outer side of the stator core; the tenth step is from the 14 th slot (f) th layer to the 14 th slot (a) th layer, and in the tenth step, the winding wire reciprocates between the 14 th slot and the 8 th slot and is wound from the radially outer side to the radially inner side of the stator core; the eleventh span is from the 14 th slot, layer a, to the 7 th slot, layer a; the twelfth jump from the 7 th slot a-th layer to the 7 th slot sub-outer layer, in which the winding reciprocates between the 7 th slot and the 1 st slot and is wound from the radially inner side to the radially outer side of the stator core;
the 1 st groove is an initial groove of the first winding, and the outermost layer of the initial groove of the first winding is connected with a first outgoing line; 5 stator slots are arranged between the termination slot of the first winding and the initial 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 third winding part and a fourth winding part which are connected end to end, the third winding part is constructed into an initial section of the second winding, and the fourth winding part is constructed into a termination section of the second winding;
in the third winding part, the 2 nd slot fth layer is the starting end of the third winding part, and the 26 th slot fth layer is the terminating end of the third winding part; the third winding portion includes thirteenth through eighteenth spans; the thirteenth jump from slot 2, layer f to slot 2, layer a, within which the winding reciprocates between slot 2 and slot 44 and the winding from the radially outer side to the radially inner side of the stator core; the fourteenth span is from the 2 nd slot (a) th layer to the 43 rd slot (a) th layer; the fifteenth step is from the 43 rd slot a-th layer to the 37 th slot f-th layer, and in the fifteenth step, the winding is reciprocated between the 43 th slot and the 37 th slot and wound from the radial inner side to the radial outer side of the stator core; the sixteenth step from the 37 th slot (f) th layer to the 37 th slot (a) th layer is that in which the winding reciprocates between the 37 th slot and the 31 st slot and is wound from the radially outer side to the radially inner side of the stator core; the seventeenth span is from the 37 th groove layer a to the 32 th groove layer a; the layer f from the 32 th slot a to the 26 th slot is the eighteenth jump section in which the winding wire reciprocates between the 32 th slot and the 26 th slot and is wound from the radially inner side to the radially outer side of the stator core;
in the fourth winding part, the 26 th slot fth layer is the starting end of the fourth winding part, and the 8 th slot secondary outer layer is the terminal end of the fourth winding part; the fourth winding portion includes nineteenth to twenty-fourth spans, the nineteenth span being the layer a from the 26 th slot to the 26 th slot, within which a winding wire reciprocates between the 26 th and 20 th slots and is wound from a radially outer side to a radially inner side of the stator core; the twentieth span is from the 26 th slot a layer to the 19 th slot a layer; the f-th layer from the 19 th slot to the 13 th slot is the twenty-first step in which the winding wire reciprocates between the 19 th slot and the 13 th slot and is wound from the radially inner side to the radially outer side of the stator core; the second slot No. f is the twenty-second step from the 13 th slot No. a to the 13 th slot No. a, and the winding wire reciprocates between the 13 th slot and the 7 th slot and is wound from the radially outer side to the radially inner side of the stator core in the twenty-second step; the twenty-third span is from the 13 th slot layer a to the 8 th slot layer a; the twenty-fourth step section from the 8 th slot a-th layer to the 8 th slot sub-outer layer, in which the winding wire reciprocates between the 8 th slot and the 2 nd slot and is wound from the radially inner side to the radially outer side of the stator core,
the 2 nd groove is an initial groove of the second routing wire, and the outermost layer of the initial groove of the second routing wire is connected with a second outgoing wire; 5 stator slots are arranged between the termination slot of the second winding and the initial 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.
CN201810551859.XA 2018-05-31 2018-05-31 Stator module and motor Active CN110556953B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201810551859.XA CN110556953B (en) 2018-05-31 2018-05-31 Stator module and motor
PCT/CN2019/089306 WO2019228458A1 (en) 2018-05-31 2019-05-30 Stator assembly and electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810551859.XA CN110556953B (en) 2018-05-31 2018-05-31 Stator module and motor

Publications (2)

Publication Number Publication Date
CN110556953A CN110556953A (en) 2019-12-10
CN110556953B true CN110556953B (en) 2021-10-22

Family

ID=68698715

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810551859.XA Active CN110556953B (en) 2018-05-31 2018-05-31 Stator module and motor

Country Status (2)

Country Link
CN (1) CN110556953B (en)
WO (1) WO2019228458A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112928836B (en) * 2021-01-25 2022-06-21 中国第一汽车股份有限公司 Pin winding type stator and motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353431A1 (en) * 1999-12-14 2003-10-15 Mitsubishi Denki Kabushiki Kaisha Alternator
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
CN105634169A (en) * 2016-01-19 2016-06-01 锦州汉拿电机有限公司 Automobile generator stator assembly employing three-phase multi-slot flat copper wire
CN105680600A (en) * 2014-12-03 2016-06-15 现代自动车株式会社 Stator winding pattern for hairpin drive motor
CN107026525A (en) * 2012-01-19 2017-08-08 日立汽车系统株式会社 Electric rotating machine and the vehicle with the electric rotating machine
CN207265764U (en) * 2017-09-20 2018-04-20 中国第一汽车股份有限公司 A kind of stator of winding electric machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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
US6979926B2 (en) * 2002-06-12 2005-12-27 Denso Corporation Sequentially joined-segment coil for rotary electrical machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353431A1 (en) * 1999-12-14 2003-10-15 Mitsubishi Denki Kabushiki Kaisha Alternator
CN107026525A (en) * 2012-01-19 2017-08-08 日立汽车系统株式会社 Electric rotating machine and the vehicle with the electric rotating machine
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
CN105680600A (en) * 2014-12-03 2016-06-15 现代自动车株式会社 Stator winding pattern for hairpin drive motor
CN105634169A (en) * 2016-01-19 2016-06-01 锦州汉拿电机有限公司 Automobile generator stator assembly employing three-phase multi-slot flat copper wire
CN207265764U (en) * 2017-09-20 2018-04-20 中国第一汽车股份有限公司 A kind of stator of winding electric machine

Also Published As

Publication number Publication date
WO2019228458A1 (en) 2019-12-05
CN110556953A (en) 2019-12-10

Similar Documents

Publication Publication Date Title
CN110556952B (en) Stator module and motor
CN110556954B (en) Stator assembly and motor
CN110556932B (en) Stator module and motor
CN110235342B (en) Stator for an electric machine
US11271446B2 (en) Stator winding method and stator core winding
US11404927B2 (en) Stator
US20180091006A1 (en) Stator assemblies for three phase dynamoelectric machines and related winding methods
CN112583166A (en) Motor stator winding and stator and motor using same
CN112821624A (en) Stator for an electrical machine having conductors with varying cross-sectional shapes
CN113169610A (en) Electric machine
CN110556953B (en) Stator module and motor
CN110556938B (en) Stator assembly and motor
CN110784039B (en) Stator assembly and motor with same
CN110556935B (en) Stator assembly and motor
CN110556956B (en) Stator assembly and motor with same
CN110556933B (en) Stator module and motor
CN110556937B (en) Stator assembly and motor
CN110971040B (en) Stator assembly and motor with same
CN110556957B (en) Stator assembly and motor
CN110556934B (en) Stator assembly and motor with same
CN211351845U (en) Stator for an electric machine
CN110556936B (en) Stator assembly and motor
CN110556955B (en) Stator assembly and motor
CN112583167A (en) Motor stator winding and stator and motor using same
CN220732474U (en) Stator winding, stator 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