CN219697384U - Stator assembly with 1 slot number per pole and flat wire motor - Google Patents

Abstract

The utility model provides a stator assembly with the slot number of each phase of each pole being 1 and a flat wire motor, wherein a stator winding comprises a plurality of phase windings arranged on a stator core; m slots are formed in the radial direction of the stator core, and M is more than or equal to 4; the method is characterized in that: the stator winding is 1 in the number of slots of each phase of each pole, and comprises a plurality of phase windings, each phase winding comprises 2 parallel branch windings, each branch winding is sequentially connected by a plurality of conductors in a wave winding manner along the circumferential direction of the stator core, and lead terminals and outgoing line ends of the branch windings of each phase winding are positioned on two radial sides of the stator core. By adopting the winding structure with the number of slots of each pole being 1, the motor has better vibration noise than the concentrated winding, smaller motor size and higher copper filling rate.

Description

Stator assembly with 1 slot number per pole and flat wire motor

Technical Field

The utility model relates to the field of motors, in particular to a stator assembly with the number of slots of each pole and each phase being 1 and a flat wire motor.

Background

The motor is designed to meet specific operating requirements based on the intended application of the motor. Depending on the particular design, the machine will have various performance characteristics. Examples of design features that facilitate operational performance include stator size, rotor size, torque output, efficiency, type and arrangement of windings, number of stator slots, number of poles, number of slots per pole per phase, parallel paths per phase, number of turns, and any other various design parameters that will be recognized by one of ordinary skill in the art.

In the prior art, unbalanced electromagnetic force exists in the concentrated winding, so that vibration noise is large, copper fullness rate of the concentrated winding is low, and motor size is large.

Disclosure of Invention

The utility model provides a stator assembly with 1 slot number per phase per pole and a flat wire motor, and the stator assembly and the flat wire motor have better vibration noise than the concentrated winding by adopting a winding structure with 1 slot number per phase per pole, smaller motor size and higher copper filling rate.

To achieve the above object, according to one aspect of the present utility model, there is provided a stator assembly having a slot number of 1 per pole per phase, comprising:

a stator core having a plurality of slots formed in a radial inner surface thereof and spaced apart in a circumferential direction of the stator core;

and

a stator winding including a plurality of phase windings mounted on the stator core; m slots are formed in the radial direction of the stator core, and M is more than or equal to 4;

the stator winding is 1 in the number of slots of each phase of each pole, and comprises a plurality of phase windings, each phase winding comprises 2 parallel branch windings, each branch winding is sequentially connected by a plurality of conductors in a wave winding manner along the circumferential direction of the stator core, and lead terminals and outgoing line ends of the branch windings of each phase winding are positioned on two radial sides of the stator core.

Further, the lead terminal and the lead-out terminal of each branch winding of each phase winding and the welding end of the phase winding are positioned at one axial side of the stator core.

Further, the inside of the slot corresponding to the plurality of conductors of each branch winding of each phase winding is arranged in M/2 slots of each slot of the stator core, and the M/2 slots of each branch winding are arranged at intervals in the slot.

Further, the slot interior intersections between two adjacent slots in each leg winding are disposed in the slot interior M layers.

Further, the pitch of the plug terminals of the plurality of conductors of each branch winding is the same as the pitch between the two conductors soldered.

Further, the lead end and the outlet end of each branch winding are positioned at two radial sides of the stator core.

Further, the lead end of one of the branch windings and the lead end of the other branch winding of each phase winding are positioned at one radial side of the stator core. Further, the plurality of coil units in the phase winding further comprises a fourth coil unit comprising 2 identical coil groups, each coil group of the fourth coil unit comprising 2 identical conductors.

Further, the fifth coil unit in the phase winding comprises 2 identical coil groups, the pitch of the first conductor of each coil group of the fifth coil unit is M, and the pitch of the second conductor is M-2, wherein N-2 is less than or equal to M and less than or equal to N+2.

According to another aspect of the utility model, there is provided a flat wire electric machine comprising a stator assembly as described above having a slot number of 1 per pole per phase.

By applying the technical scheme of the utility model, the stator assembly with the number of slots per pole and phase of 1 and the flat wire motor are provided, wherein the stator core is provided with a plurality of slots which are formed in the radial inner surface of the stator core and are spaced in the circumferential direction of the stator core; and a stator winding including a plurality of phase windings mounted on the stator core; m slots are formed in the radial direction of the stator core, and M is more than or equal to 4; the stator winding is 1 for every phase slot number of each pole, and this stator winding includes a plurality of phase windings, and every phase winding includes 2 parallel branch windings, and every branch winding is connected along stator core circumference sequential wave winding by a plurality of conductors, and the leading-in terminal and the wire end of each branch winding of every phase winding are located stator core radial both sides, through adopting the winding structure that every phase slot number of each pole is 1, and it is better to compare concentrated winding's realization vibration noise, and the motor size is littleer, and the copper filling rate is higher.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1A is a partially schematic, planar development of a phase winding in accordance with an embodiment of the utility model;

FIG. 1B is a schematic plan view of another portion of a phase winding according to an embodiment of the present utility model;

FIG. 2A is a schematic plan view of a portion of a leg winding of a phase winding in accordance with an embodiment of the present utility model;

FIG. 2B is a schematic plan view of another portion of one leg winding of a phase winding in accordance with an embodiment of the present utility model;

FIG. 3A is a schematic plan view of a portion of a leg winding of a phase winding in accordance with an embodiment of the present utility model;

FIG. 3B is a schematic plan view of another portion of one leg winding of the phase winding in accordance with one embodiment of the present utility model;

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and in the drawings are used for distinguishing between different objects and not for limiting a particular order. The following embodiments of the present utility model may be implemented individually or in combination with each other, and the embodiments of the present utility model are not limited thereto.

The utility model provides a stator assembly with 1 slot number per phase per pole. The pitch is the interval between two groove interiors of the same conductor along the circumferential direction, or the pitch is the sum of the span between the groove interiors corresponding to one groove outer end part of one conductor and the span between the groove interiors corresponding to one groove outer end part of the other conductor; it should be noted that, in the present utility model, the radial inner side of the stator core is a side close to the central axis direction of the stator core, or may be a side far from the central axis direction of the stator core.

Illustratively, as shown in fig. 1A-3B, in an embodiment, a stator assembly having a slot number of 1 per pole per phase comprises: a stator core 20, the stator core 20 having a plurality of slots formed in a radially inner surface of the stator core 20 and spaced apart in a circumferential direction of the stator core 20; and a stator winding 10, the stator winding 10 including a plurality of phase windings mounted on the stator core 20; m slots are formed in the radial direction of the stator core, and M is greater than or equal to 4.

Referring to fig. 1A to 3B, in an embodiment, a stator assembly having a slot number of 1 per pole per phase includes: a stator core 20 having a plurality of slots formed in a radially inner surface of the stator core 20 and spaced apart in a circumferential direction of the stator core 20, the stator core having a plurality of slots 21 uniformly arranged at a rate of 1 per pole per phase, the stator core 20 defining one tooth by two adjacent slots, the stator core 20 forming two end surfaces in an axial direction of the stator core by laminating a plurality of annular magnetic steel plates, other conventional metal plates may be used instead of the magnetic steel plates; the stator winding 10 includes a plurality of phase windings mounted on the stator core 20, and M slots are formed in the radial direction of the stator core, in the first embodiment, M is 8, and M placed therein may be 4, 6, 10, etc., in the present embodiment, the phase windings (may be any one of U-phase windings, V-phase windings, and W-phase windings).

1A-3B, in an embodiment, a stator winding comprises a plurality of phase windings, each phase winding comprises 2 branch windings connected in parallel, each branch winding is sequentially connected in a wave winding manner along the circumferential direction of a stator core by a plurality of conductors, and lead terminals and wire outgoing terminals of the branch windings of each phase winding are positioned on two radial sides of the stator core; further, the lead end and the wire outlet end of each branch winding are positioned at two radial sides of the stator core; further, the lead end of one of the branch windings and the lead end of the other branch winding of each phase winding are positioned at one radial side of the stator core.

Referring to fig. 1A to 3B, in an embodiment, the stator winding includes 3 phase windings, each phase winding includes 2 branch windings connected in parallel, namely, a first branch winding U1-U2, a second branch winding U3-U4, each branch winding is sequentially connected by a plurality of conductors along the stator core circumference, a lead end U1 of the first branch winding of each phase winding is located at a slot outer end of a first conductor connected to a first layer 28 of the stator core in a radial direction of the stator core, the first conductor is located at a first layer 1 and a second layer 2 of the stator core in a stator core circumference sequentially connected by 11 conductors, a thirteenth conductor connected to a third layer 3 and a fourth layer 4 of the stator core is located at a third layer 3 and a fourth layer 11 conductors in a stator core circumference sequentially connected by a thirteenth conductor, a twenty fifth conductor connected to a fifth conductor located at a third layer 5 and a fourth layer 6 of the stator core in a stator core circumference is located at a third layer 11 conductors located at a third layer 8 of the stator core circumference in a third layer, a thirty fifth conductor located at a third layer 7 and a third layer 8 located at a third layer 8 of the stator core in a third layer 8 located at a third layer 8 of the stator core circumference is located at a third layer 8 of the third conductor located at a third layer; the first branch winding is sequentially connected by a plurality of conductors in a wave winding way along the circumferential direction of the stator core, the lead end and the wire outlet end of the branch winding are positioned on a radial first layer and an M-th layer (M is 8 here) of the stator core, the lead end U1 of the branch winding is positioned on the radial 1-th layer of the stator core, and the wire outlet end U2 of the branch winding is positioned on the radial 8-th layer of the stator core; the lead end U3 of the second branch winding of each phase winding is positioned at the outer end part of a groove of a first conductor, the first conductor is positioned at the outer end part of a groove of a radial 8 th layer of a stator core, the radial 8 th layer and the radial 7 th layer of the stator core are sequentially connected with the other 11 conductors in a wave winding manner along the circumferential direction of the stator core, the thirteenth conductor is connected with the other 11 conductors in the radial 6 th layer and the radial 5 th layer of the stator core in a wave winding manner along the circumferential direction of the stator core, the twenty-fifth conductor is connected with the other 11 conductors in the radial 3 rd layer and the radial 4 th layer of the stator core, the thirty-seventh conductor is connected with the other 11 conductors in the radial 1 st layer and the radial 2 nd layer of the stator core in a wave winding manner along the circumferential direction of the stator core, the thirty-seventh conductor is positioned at the radial 1 st layer and the radial 2 nd layer of the stator core, and the outlet end part U4 is connected with the outer end part of the groove of the radial 1 st layer of the stator core in the thirty-eighth conductor; the second branch winding is sequentially connected by a plurality of conductors in a wave winding way along the circumferential direction of the stator core, the lead end and the wire outlet end of the branch winding are positioned on a radial first layer and an M-th layer (M is 8 here) of the stator core, the lead end U3 of the branch winding is positioned on a radial 8 th layer of the stator core, and the wire outlet end U4 of the branch winding is positioned on a radial 1 st layer of the stator core; the lead end U1 of the first branch of the U-phase winding is positioned at the radial layer 1 of the stator core, the lead end U4 of the second branch winding of the phase winding is positioned at the radial layer 1 of the stator core, the lead end U2 of the first branch winding of the U-phase winding is positioned at the radial layer 8 of the stator core, the lead end U3 of the second branch winding of the phase winding is positioned at the radial layer 8 of the stator core, and the lead end of one branch winding and the lead end of the other branch winding of each phase winding are positioned at one radial side of the stator core; the lead ends and the outgoing ends of the two branch windings of each phase winding are positioned at two radial sides of the stator core.

As illustrated in fig. 1A to 3B, in the first embodiment, the lead end and the lead-out end of each leg winding of each phase winding and the welding end of the phase winding are located at one side in the axial direction of the stator core.

Referring to fig. 1A to 3B, in an embodiment, a lead terminal U1 of a first leg winding of a U-phase winding is connected to one of two slot interiors of a first conductor at a slot exterior end portion corresponding to a slot interior of a radial layer 1, layer 28 slot of a stator core; (the turning part of the first conductor is positioned at the other axial side of the stator core and is connected with the two slot interiors, the two outer slot ends of the first conductor are positioned at one axial side of the stator core and are connected with the two slot interiors, the lead end of the first branch winding is positioned at one axial side of the stator core and is connected with one outer slot end of the first conductor, the lead end U2 of the branch winding is connected with one outer slot end corresponding to the inner slot of the forty-eighth conductor, and one of the two slot interiors of the branch winding is positioned at the radial 8 th layer 31 th slot of the stator core; (the turning part of the forty-eighth conductor is positioned at the other side of the axial direction of the stator core and is connected with two groove interiors, the two groove outer ends of the forty-eighth conductor are positioned at one side of the axial direction of the stator core and are connected with two groove interiors, the wire outlet end of the branch winding is positioned at one side of the axial direction of the stator core and is connected with one groove outer end of the forty-eighth conductor, namely, the welding end of the wire outlet end and the wire outlet end of the first branch winding of the U-phase winding are positioned at one side of the axial direction of the stator core, the wire outlet end U3 of the second branch winding of the U-phase winding is connected with one groove outer end of the first conductor corresponding to the groove interior of the first conductor, the turning part of the first conductor is positioned at the other side of the axial direction of the stator core and is connected with two groove interiors, the two groove outer ends of the first conductor are positioned at one side of the axial direction of the stator core, the outlet end U4 of the branch winding is connected with the corresponding outer end part of the groove inside the first layer 31 groove in the radial direction of the stator core, wherein one of the two grooves of the forty-eighth conductor is positioned inside the groove; (the turning part of the forty-eight conductor is positioned at the other side of the axial direction of the stator core and is connected with the two slots, the outer ends of the two slots of the forty-eight conductor are positioned at one side of the axial direction of the stator core and are connected with the two slots, the wire outlet end of the branch winding is positioned at one outer end of one slot of the forty-eight conductor, namely, the welding end of the wire outlet end and the wire outlet end of the second branch winding of the U-phase winding is positioned at one side of the axial direction of the stator core, and the welding end of the wire outlet end and the phase winding of each branch winding of the U-phase winding is positioned at one side of the axial direction of the stator core, and correspondingly, the connection modes of the other phase windings and the U-phase winding are the same, except for being positioned at different slots.

Alternatively, as shown in fig. 2A to 3B, in the embodiment, the slot interiors corresponding to the plurality of conductors of each leg winding of each phase winding are disposed in M/2 slot interiors of each slot of the stator core, and M/2 slot interiors of each leg winding are disposed at intervals in the slot; the inner part of the groove between two adjacent grooves in each branch winding is crosswise arranged in M layers in the groove; the pitch of the plug ends of the plurality of conductors of each branch winding is the same as the pitch between the two conductors that are soldered.

In practice, with reference to fig. 2A to 2B, two slots of a first conductor of a first leg winding of a U-phase winding are located inside a radial 1 st layer slot 28 and a radial 2 nd layer slot 25 of the stator core, the first conductor is connected to a second conductor located inside a radial 1 st layer slot 22 and a radial 2 nd layer slot 19 of the stator core, the second conductor is connected to a third conductor located inside a radial 1 st layer slot 16 and a radial 2 nd layer slot 13 of the stator core, the third conductor is connected to a fourth conductor located inside a radial 1 st layer slot 10 and a radial 2 nd layer slot 7 of the stator core, the fourth conductor is connected to a fifth conductor located inside a radial 1 st layer slot 4 and a radial 2 nd layer slot 1 st layer slot, the fifth conductor is connected to a sixth conductor located inside a radial 1 st layer slot 70 and a radial 2 nd layer 67 of the stator core, the sixth conductor is connected to a seventh conductor, the seventh conductor is positioned in the stator core radial 1 st layer 64 th slot and the 2 nd layer 61 th slot, the seventh conductor is connected with the eighth conductor, the eighth conductor is positioned in the stator core radial 1 st layer 58 th slot and the 2 nd layer 55 th slot, the eighth conductor is connected with the ninth conductor, the ninth conductor is positioned in the stator core radial 1 st layer 52 th slot and the 2 nd layer 49 th slot, the ninth conductor is connected with the tenth conductor, the tenth conductor is positioned in the stator core radial 1 st layer 46 th slot and the 43 rd slot, the tenth conductor is connected with the eleventh conductor, the eleventh conductor is positioned in the stator core radial 1 st layer 40 th slot and the 2 nd layer 37 th slot, the eleventh conductor is connected with the twelfth conductor, the twelfth conductor is positioned in the stator core radial 1 st layer 34 th slot and the 2 nd layer 31 th slot, the twelfth conductor is connected with the thirteenth conductor, the thirteenth conductor is positioned in the stator core radial 3 rd layer 28 th slot and the 4 th layer 25 th slot, the thirteenth conductor is connected with a fourteenth conductor, the fourteenth conductor is positioned in a stator core radial layer 3 slot 22 and a layer 4 slot 19, the fourteenth conductor is connected with a fifteenth conductor, the fifteenth conductor is positioned in a stator core radial layer 3 slot 16 and a layer 4 slot 13, the fifteenth conductor is connected with a sixteenth conductor, the sixteenth conductor is positioned in a stator core radial layer 3 slot 10 and a layer 4 slot 7, the sixteenth conductor is connected with the seventeenth conductor, the seventeenth conductor is positioned in a stator core radial layer 3 slot 4 and a layer 4 slot 1, the fifty-seventh conductor is connected with an eighteenth conductor, the eighteenth conductor is positioned in a stator core radial layer 3 slot 70 and a layer 4 slot 67, the eighteenth conductor is connected with a nineteenth conductor, the nineteenth conductor is positioned in a stator core radial layer 3 slot 64 and a layer 4 slot 61, the nineteenth conductor is connected with a twentieth conductor, the twentieth conductor is positioned in a third layer 58 slot and a fourth layer 55 slot in the radial direction of the stator core, the twentieth conductor is connected with a twenty-first conductor, the ninth conductor is positioned in a third layer 52 slot and a fourth layer 49 slot in the radial direction of the stator core, the twenty-first conductor is connected with a twenty-second conductor, the twenty-second conductor is positioned in a third layer 46 slot and a fourth layer 43 slot in the radial direction of the stator core, the twenty-third conductor is connected with a twenty-third conductor, the twenty-third conductor is positioned in a third layer 40 slot and a fourth layer 37 slot in the radial direction of the stator core, the twenty-fourth conductor is connected with a fourth layer 34 slot and a fourth layer 31 slot in the radial direction of the stator core, the twenty-fourth conductor is connected with a twenty-fifth conductor, the twenty-fifth conductor is positioned in a third layer 28 slot and a fourth layer 25 slot in the radial direction of the stator core, the twenty-fifth conductor is connected with a twenty-sixth conductor, the twenty-sixth conductor is positioned in a radial 5 th layer slot 22 and a radial 6 th layer slot 19 of the stator core, the twenty-sixth conductor is connected with a twenty-seventh conductor, the twenty-seventh conductor is positioned in a radial 5 th layer slot 16 and a radial 6 th layer slot 13 of the stator core, the twenty-seventh conductor is connected with a twenty-eighth conductor, the twenty-eighth conductor is positioned in a radial 5 th layer slot 10 and a radial 6 th layer slot 7 of the stator core, the twenty-eighth conductor is connected with the twenty-ninth conductor, the twenty-ninth conductor is positioned in a radial 5 th layer slot 4 and a radial 6 th layer slot 1 of the stator core, the twenty-ninth conductor is connected with a thirty-first conductor, the thirty-first conductor is positioned in a radial 5 th layer slot 70 and a radial 6 th layer slot 67 of the stator core, the thirty-first conductor is positioned in a radial 5 th layer slot 64 and a radial 6 th layer 61 of the stator core, the thirty-first conductor is connected with a thirty-second conductor which is positioned in a radial 5 th layer slot 58 and a radial 6 th layer slot 55 of the stator core, the thirty-second conductor is connected with a thirty-third conductor which is positioned in a radial 5 th layer slot 52 and a radial 6 th layer slot 49 of the stator core, the thirty-third conductor is connected with a thirty-fourth conductor which is positioned in a radial 5 th layer slot 46 and a radial 6 th layer slot 43 of the stator core, the thirty-fourth conductor is connected with a thirty-fifth conductor which is positioned in a radial 5 th layer slot 40 and a radial 6 th layer slot 37 of the stator core, the thirty-fifth conductor is connected with a thirty-sixth conductor which is positioned in a radial 5 th layer slot 34 and a radial 6 th layer slot 31 of the stator core, the thirty-sixth conductor is connected with a thirty-seventh conductor, the thirty-seventh conductor is located in the stator core radial 7 th 28 th and 8 th 25 th slots, the thirty-seventh conductor is connected to the thirty-eighth conductor, the thirty-eighth conductor is located in the stator core radial 7 th 22 nd and 8 th 19 th slots, the thirty-eighth conductor is connected to the thirty-ninth conductor, the thirty-ninth conductor is located in the stator core radial 7 th 16 th and 8 th 13 th slots, the thirty-ninth conductor is connected to the forty-fourth conductor, the forty-fourth conductor is located in the stator core radial 7 th 10 th and 8 th 7 th slots, the forty-fourth conductor is connected to the forty-first conductor, the forty-first conductor is located in the stator core radial 7 th 4 th and 8 th 1 th slots, the forty-second conductor is connected to the forty-second conductor, the forty-second conductor is located in the stator core radial 7 th 70 th and 8 th 67 th slots, the forty-second conductor is connected to the forty-third conductor, the forty-third conductor is positioned in the stator core radial 7 th layer 64 th slot and the 8 th layer 61 th slot, the forty-third conductor is connected with the forty-fourth conductor, the forty-fourth conductor is positioned in the stator core radial 7 th layer 58 th slot and the 8 th layer 55 th slot, the forty-fourth conductor is connected with the forty-fifth conductor, the forty-fifth conductor is positioned in the stator core radial 7 th layer 52 slot and the 8 th layer 49 th slot, the forty-fifth conductor is connected with the forty-sixth conductor, the forty-sixth conductor is positioned in the stator core radial 7 th layer 46 th slot and the 8 th layer 43 th slot, the forty-sixth conductor is connected with the forty-seventh conductor, the forty-seventh conductor is positioned in the stator core radial 7 th layer 40 slot and the 8 th layer 37 th slot, the forty-seventh conductor is connected with the forty-eighth conductor, and the forty-eighth conductor is positioned in the stator core radial 7 th layer 34 th layer and the 8 th layer 31 th slot; further, the method comprises the steps of, the plurality of conductors of the first branch winding are positioned at the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer of the 1 st slot of the stator core, positioned at the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer of the radial 4 th slot of the stator core, positioned at the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer of the radial 7 th slot of the stator core, positioned at the 1 st layer, the 3 rd layer, the 4 th layer, the 6 th layer and the 8 th layer of the radial 13 th slot of the stator core, positioned at the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer of the radial 16 th slot of the stator core, positioned at the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer of the radial 22 th slot of the stator core, positioned at the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer, positioned at the radial 25 th slot of the stator core, layer 1, layer 3, layer 5, layer 7 in radial slot 28 of stator core, layer 2, layer 4, layer 6, layer 8 in radial slot 31 of stator core, layer 1, layer 3, layer 5, layer 7 in radial slot 34 of stator core, layer 2, layer 4, layer 6, layer 8 in radial slot 37 of stator core, layer 1, layer 3, layer 5, layer 7 in radial slot 43 of stator core, layer 2, layer 4, layer 6, layer 8 in radial slot 46 of stator core, layer 3, layer 5, layer 7, layer 2, layer 4, layer 6, layer 8, layer 2, layer 8, layer 2, layer, the layers 4, 6 and 8 are positioned at the layers 1, 3, 5 and 7 of the radial 58 th slot of the stator core, the layers 2, 4, 6 and 8 of the radial 61 th slot of the stator core, the layers 1, 3, 5 and 7 of the radial 64 th slot of the stator core, the layers 2, 4, 6 and 8 of the radial 67 th slot of the stator core, the layers 1, 3, 5 and 7 of the radial 70 th slot of the stator core, namely the 48 conductors of the first branch winding of the U-phase winding are arranged in the 4 corresponding slots of each slot of the stator core, and the 4 slots of the first branch winding are arranged at intervals in the slots; the pitch of the inserting wire ends of 48 conductors of the first branch winding, which are arranged in the grooves in a crossing manner in adjacent two grooves in the first branch winding, is 3, and the pitch between the corresponding outer end parts of the grooves of the two welded conductors of the first branch winding is 3, namely the pitch of the inserting wire ends of 48 conductors of the first branch winding is the same as the pitch between the two welded conductors.

In practice, with reference to fig. 3A to 3B, two slots of the first conductor of the second leg winding of the U-phase winding are located inside the stator core radial 8 th layer 34 th slot and 7 th layer 37 th slot, the first conductor is connected to the second conductor, the second conductor is located inside the stator core radial 8 th layer 40 th slot and 7 th layer 43 th slot, the second conductor is connected to the third conductor, the third conductor is located inside the stator core radial 8 th layer 46 th slot and 7 th layer 49 th slot, the third conductor is connected to the fourth conductor, the fourth conductor is located inside the stator core radial 8 th layer 52 th slot and 7 th layer 55 th slot, the fourth conductor is connected to the fifth conductor, the fifth conductor is located inside the stator core radial 8 th layer 58 th slot and 7 th layer 61 th slot, the fifth conductor is connected to the sixth conductor, the sixth conductor is located inside the stator core radial 8 th layer 64 th slot and 7 th layer 67 th slot, the sixth conductor is connected with a seventh conductor, the seventh conductor is positioned in a stator core radial layer 70 slot and a 7 th layer 1 slot, the seventh conductor is connected with an eighth conductor, the eighth conductor is positioned in a stator core radial layer 8 slot and a 7 th layer 7 slot, the eighth conductor is connected with a ninth conductor, the ninth conductor is positioned in a stator core radial layer 10 slot and a 7 th layer 13 slot, the ninth conductor is connected with a tenth conductor, the tenth conductor is positioned in a stator core radial layer 8 slot and a 7 th layer 19 slot, the tenth conductor is connected with an eleventh conductor, the eleventh conductor is positioned in a stator core radial layer 22 slot and a 7 th layer 25 slot, the eleventh conductor is connected with a twelfth conductor, the twelfth conductor is positioned in a stator core radial layer 8 slot and a 7 th layer 31 slot, the twelfth conductor is connected with a thirteenth conductor, the thirteenth conductor is positioned in the stator core radial 6 th layer 34 th slot and the 5 th layer 37 th slot, the thirteenth conductor is connected with the fourteenth conductor, the fourteenth conductor is positioned in the stator core radial 6 th layer 40 th slot and the 5 th layer 43 th slot, the fourteenth conductor is connected with the fifteenth conductor, the fifteenth conductor is positioned in the stator core radial 6 th layer 46 th slot and the 5 th layer 49 th slot, the fifteenth conductor is connected with the sixteenth conductor, the sixteenth conductor is positioned in the stator core radial 6 th layer 52 th slot and the 5 th layer 55 th slot, the sixteenth conductor is connected with the seventeenth conductor, the seventeenth conductor is positioned in the stator core radial 6 th layer 58 th slot and the 5 th layer 61 th slot, the fifty-seventh conductor is connected with the eighteenth conductor, the eighteenth conductor is positioned in the stator core radial 6 th layer 64 th slot and the 5 th layer 67 th slot, the eighteenth conductor is connected with the nineteenth conductor, the nineteenth conductor is positioned in the stator core radial 6 th layer 70 th slot and the 5 th layer 1 st slot, the nineteenth conductor is connected with the twentieth conductor, the twentieth conductor is positioned in the stator core radial 6 th layer 4 th slot and the 5 th layer 7 th slot, the twentieth conductor is connected with the twenty first conductor, the ninth conductor is positioned in the stator core radial 6 th layer 10 slot and the 5 th layer 13 th slot, the twenty first conductor is connected with the twenty second conductor, the twenty second conductor is positioned in the stator core radial 6 th layer 16 th slot and the 5 th layer 19 th slot, the twenty second conductor is connected with the twenty third conductor, the twenty third conductor is positioned in the stator core radial 6 th layer 22 slot and the 5 th layer 25 th slot, the twenty third conductor is connected with the twenty fourth conductor, the twenty fourth conductor is positioned in the stator core radial 6 th layer 28 th slot and the 5 th layer 31 th slot, the twenty fourth conductor is connected with the twenty fifth conductor, the twenty-fifth conductor is positioned in the radial 4 th layer slot 34 and the 3 rd layer slot 37 of the stator core, the twenty-fifth conductor is connected with the twenty-sixth conductor, the twenty-sixth conductor is positioned in the radial 4 th layer slot 40 and the 3 rd layer slot 43 of the stator core, the twenty-sixth conductor is connected with the twenty-seventh conductor, the twenty-seventh conductor is positioned in the radial 4 th layer slot 46 and the 3 rd layer slot 49 of the stator core, the twenty-seventh conductor is connected with the twenty-eighth conductor, the twenty-eighth conductor is positioned in the radial 4 th layer slot 52 and the 3 rd layer slot 55 of the stator core, the twenty-eighth conductor is connected with the twenty-ninth conductor, the twenty-ninth conductor is positioned in the radial 4 th layer slot 58 and the 3 rd layer slot 61 of the stator core, the thirty-ninth conductor is connected with the radial 4 th layer slot 64 and the 3 rd layer 67 of the stator core, the thirty-third conductor is connected with the thirty-first conductor, the thirty-first conductor is positioned at the radial 4 th layer 70 th slot and the 3 rd layer 1 st slot of the stator core, the thirty-first conductor is connected with the thirty-second conductor, the thirty-second conductor is positioned at the radial 4 th layer 4 th slot and the 3 rd layer 7 th slot of the stator core, the thirty-second conductor is connected with the thirty-third conductor, the thirty-third conductor is positioned at the radial 4 th layer 10 slot and the 3 rd layer 13 th slot of the stator core, the thirty-third conductor is connected with the thirty-fourth conductor, the thirty-fourth conductor is positioned at the radial 4 th layer 16 th slot and the 3 rd layer 19 th slot of the stator core, the thirty-fourth conductor is connected with the thirty-fifth conductor, the thirty-fifth conductor is connected with the thirty-sixth conductor, the thirty-sixth conductor is positioned at the radial 4 th layer 28 th slot and the 3 rd layer 31 th slot of the stator core, the thirty-sixth conductor is connected with a thirty-seventh conductor, the thirty-seventh conductor is positioned at a 2 nd layer slot 34 and a 1 st layer slot 37 in the radial direction of the stator core, the thirty-seventh conductor is connected with a thirty-eighth conductor, the thirty-eighth conductor is positioned at a 2 nd layer slot 40 and a 1 st layer slot 43 in the radial direction of the stator core, the thirty-eighth conductor is connected with a thirty-ninth conductor, the thirty-ninth conductor is positioned at a 46 nd layer slot 46 and a 1 st layer slot 49 in the radial direction of the stator core, the thirty-ninth conductor is connected with a forty conductor, the forty conductor is positioned at a 52 nd layer slot 52 and a 55 st layer slot 55 in the radial direction of the stator core, the forty conductor is connected with the forty-first conductor, the forty-first conductor is positioned at a 58 nd layer slot 58 and a 61 st layer slot 61 in the radial direction of the stator core, the forty-second conductor is located in the stator core radial direction 2 nd layer 64 th slot and the 1 st layer 67 th slot, the forty-second conductor is connected with the forty-third conductor, the forty-third conductor is located in the stator core radial direction 2 nd layer 70 th slot and the 1 st layer 1 st slot, the forty-third conductor is connected with the forty-fourth conductor, the forty-fourth conductor is located in the stator core radial direction 2 nd layer 4 th slot and the 1 st layer 7 th slot, the forty-fourth conductor is connected with the forty-fifth conductor, the forty-fifth conductor is located in the stator core radial direction 2 nd layer 10 slot and the 1 st layer 13 th slot, the forty-fifth conductor is connected with the forty-sixth conductor, the forty-sixth conductor is located in the stator core radial direction 2 nd layer 16 th slot and the 1 st layer 19 th slot, the forty-sixth conductor is connected with the forty-seventh conductor, the forty-seventh conductor is located in the stator core radial direction 2 nd layer 22 slot and the 1 st layer 25 th slot, the forty-eighth conductor is positioned in the 28 th slot of the 2 nd layer and the 31 st slot of the 1 st layer of radial direction of the stator core; further, the plurality of conductors of the first branch winding are located at 1 st layer, 3 rd layer, 5 th layer, 7 th layer of the 1 st slot of the stator core, located at 2 nd layer, 4 th layer, 6 th layer, 8 th layer of the 4 th slot of the stator core in radial direction, located at 1 st layer, 3 rd layer, 5 th layer, 7 th layer of the 7 th slot of the stator core, located at 2 nd layer, 4 th layer, 6 th layer, 8 th layer of the 10 th slot of the stator core in radial direction, located at 1 st layer, 3 rd layer, 5 th layer, 7 th layer of the 13 th slot of the stator core, located at 2 nd layer, 4 th layer, 6 th layer, 8 th layer of the 1 st layer, 3 rd layer, 5 th layer, 7 th layer of the 19 th slot of the stator core in radial direction, located at 1 st layer, 3 rd layer, 5 th layer, 7 th layer of the stator core in radial direction, located at 2 nd layer, 4 th layer, 6 th layer, 8 th layer, 1 st layer, 3 rd layer, 7 th layer of the stator core in radial direction, the stator core is positioned at the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer of the radial 28 th slot of the stator core, the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer of the radial 31 th slot of the stator core, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer of the radial 34 th slot of the stator core, the 1 st layer, the 3 rd layer, the 5 th layer and the 7 th layer of the radial 37 th slot of the stator core, the 2 nd layer, the 4 th layer, the 6 th layer and the 8 th layer of the radial 40 th slot of the stator core, layer 1, layer 3, layer 5, layer 7 in the radial 43 rd slot of the stator core, layer 2, layer 4, layer 6, layer 8 in the radial 46 th slot of the stator core, layer 1, layer 3, layer 5, layer 7 in the radial 49 th slot of the stator core, layer 2, layer 4, layer 6, layer 8 in the radial 52 th slot of the stator core, layer 1 in the radial 55 th slot of the stator core, the layers 3, 5 and 7 are positioned at the layers 2, 4, 6 and 8 of the radial 58 th slot of the stator core, the layers 1, 3, 5 and 7 of the radial 61 th slot of the stator core, the layers 2, 4, 6 and 8 of the radial 64 th slot of the stator core, the layers 2, 3, 5 and 7 of the radial 67 th slot of the stator core, the layers 2, 4, 6 and 8 of the radial 70 th slot of the stator core, namely the 48 conductors of the second branch winding of the U-phase winding are correspondingly arranged in the 4 slots of each slot of the stator core, and the 4 slots of the second branch winding are arranged at intervals in the slots; the pitch of the inserting wire ends of 48 conductors of the 8-layer second branch winding which are arranged in the grooves in a crossing manner in the adjacent two grooves in the first branch winding is 3, and the pitch between the corresponding outer end parts of the grooves in the two welded conductors of the second branch winding is 3, namely the pitch of the inserting wire ends of 48 conductors of the second branch winding is the same as the pitch between the two welded conductors.

The embodiment also provides a flat wire motor, which adopts the stator assembly with the slot number of 1 per pole and phase.

The motor provided by the embodiment of the utility model comprises the stator winding in the embodiment, so that the motor provided by the embodiment of the utility model also has the beneficial effects described in the embodiment, and the description is omitted herein.

In the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the term "coupled" is to be interpreted broadly, as for example, whether fixedly coupled, detachably coupled, or integrally coupled; the connection may be mechanical connection, electrical connection, direct connection, indirect connection (bus connection) through an intermediate medium, or communication between the two elements. The above-described specific meanings belonging to the present utility model will be understood in detail by those skilled in the art. Finally, it should be noted that the foregoing description is only illustrative of the preferred embodiments of the present utility model and the technical principles employed.

It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (8)

1. A stator assembly having a slot number of 1 per pole per phase comprising:

a stator core having a plurality of slots formed in a radially inner surface thereof and spaced apart in a circumferential direction of the stator core;

and

a stator winding including a plurality of phase windings mounted on the stator core; m slots are formed in the radial direction of the stator core, and M is more than or equal to 4;

the method is characterized in that: the stator winding comprises a plurality of phase windings, each phase winding comprises 2 branch windings which are connected in parallel, each branch winding is connected by a plurality of conductors in a sequential wave winding mode along the circumferential direction of the stator core, and lead ends and wire outlet ends of the branch windings of each phase winding are positioned on two radial sides of the stator core.

2. A stator assembly according to claim 1, wherein the lead and lead terminals of each leg winding of each phase winding and the welded end of the phase winding are located on one axial side of the stator core.

3. A stator assembly according to claim 1, wherein the slot interiors corresponding to the plurality of conductors of each leg winding of each of the phase windings are disposed in M/2 slot interiors of each slot of the stator core, and the M/2 slot interiors of each of the leg windings are disposed at a spacing in the slot.

4. A stator assembly according to claim 1, wherein the number of slots per pole per phase is 1, and wherein the intra-slot intersections between two adjacent slots in each of the leg windings are provided in M layers of slots.

5. A stator assembly according to claim 1, wherein the pitch of the plug ends of the plurality of conductors of each of the leg windings is the same as the pitch between the two conductors of the phase weld.

6. A stator assembly according to claim 1, wherein the number of slots per phase per pole is 1, and wherein the lead and lead terminals of each of the leg windings are located on either radial side of the stator core.

7. A stator assembly according to claim 1, wherein the lead end of one of the leg windings and the lead end of the other leg winding of each of the phase windings are located on one radial side of the stator core.

8. A flat wire electric machine comprising a stator assembly of 1 slot per phase per pole according to any one of claims 1 to 7.