CN116054456B - 72-slot 8-pole continuous wave winding and motor - Google Patents
72-slot 8-pole continuous wave winding and motor Download PDFInfo
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- CN116054456B CN116054456B CN202310339164.6A CN202310339164A CN116054456B CN 116054456 B CN116054456 B CN 116054456B CN 202310339164 A CN202310339164 A CN 202310339164A CN 116054456 B CN116054456 B CN 116054456B
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- 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
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- 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
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- 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
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Abstract
The invention provides a 72-slot 8-pole continuous wave winding and a motor, wherein the 72-slot 8-pole continuous wave winding is obtained by adopting three-phase parallel flat wires to pass through 6 layers of 72 slots layer by layer along the circumferential direction; the U-phase winding, the V-phase winding and the W-phase winding are formed by winding three branch flat wires; in the U-phase winding, a first branch, a second branch and a third branch are formed by winding 6 layers of 72 slot positions through winding by flat wires according to a first winding mode, a second winding mode and a third winding mode respectively; the V-phase winding rotates for 3 slots along the increasing direction of the slots relative to the U-phase winding to obtain the V-phase winding; the W-phase winding rotates for 6 slots along the increasing direction of the slots relative to the U-phase winding. The winding has the advantages that the end part does not need to be welded after being formed, the height of the end part is lower, the torque density of the same length is higher, and the like; the three parallel branches have balanced potential, so that the motor efficiency can be improved; the structure is simple and compact, and the manufacturability is good.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a 72-slot 8-pole continuous wave winding and a motor.
Background
Because the flat wire motor can obviously improve the slot filling rate and the motor efficiency of the motor, more and more flat wire motors are applied to new energy automobile driving systems, at present, the existing motor using flat wires mostly adopts hairpin windings, namely a plurality of hairpin windings penetrate into slots of a stator core according to a certain arrangement mode to form windings of a required single-phase motor or multi-phase motor, and the winding mode has the problems of too many welding spots, difficult control of welding quality, poor process manufacturability and higher realization of automatic production cost.
Therefore, the existing flat wire motor has the problems of complex process, high production cost and low processing efficiency, and in order to solve the problems, the invention provides a novel 72-slot 8-pole continuous wave winding.
Disclosure of Invention
Based on the expression, the invention provides a 72-slot 8-pole continuous wave winding and a motor, which are used for solving the technical problems of complex process, high production cost and low processing efficiency of a flat wire motor in the prior art.
The technical scheme for solving the technical problems is as follows:
in a first aspect, the present invention provides a 72 slot 8 pole continuous wave winding comprising: the three-phase parallel flat wire is adopted to pass through 6 layers of 72 slots layer by layer along the circumferential direction to obtain;
the three phases are U-phase, V-phase and W-phase, and the U-phase winding, the V-phase winding and the W-phase winding are formed by winding three branch flat wires;
in the U-phase winding, a first branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a first winding mode, a second branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a second winding mode, and a third branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a third winding mode;
the V-phase winding rotates for 3 slots along the increasing direction of the slots relative to the U-phase winding to obtain the V-phase winding;
the W-phase winding is rotated by 6 slots along the increasing direction of the slots relative to the U-phase winding.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the first winding mode, the second winding mode and the third winding mode are respectively and sequentially winding the three flat wires from the first starting point, the second starting point and the third starting point of the layer 1 to the layer 6 in a cross-layer manner according to the current flow direction, and reversely winding the three flat wires from the layer 6 to the first end point, the second end point and the third end point of the layer 1; the span of the tri-flat wire between two adjacent stator slots of the same layer is 9;
the first starting point, the second starting point and the third starting point are sequentially separated by a groove.
In a second aspect, the present invention also provides an electric machine comprising: a rotor and a 72 slot 8 pole continuous wave winding as claimed in any one of the first aspects; the rotor is rotatable relative to the 72 slot 8-pole continuous wave winding.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
the 72-slot 8-pole continuous wave winding provided by the invention is obtained by adopting the three-phase parallel flat wire to pass through 6 layers of 72 slots layer by layer along the circumferential direction, any one phase winding in the three-phase winding is provided with three-branch flat wires, the three-branch flat wires respectively pass through the 6 layers of 72 slots layer by layer according to the sequence of current flowing through the slots to form the 8-pole 72-slot continuous wave winding, a novel continuous wave winding mode is provided, and compared with the existing hairpin winding, the novel continuous wave winding mode has the advantages that the formed end part does not need to be welded, the lower end part height is realized, the torque density of the same length is higher, and the like; in addition, the three parallel branches of the winding have balanced potential, so that the additional loss caused by circulation can be avoided, and the motor efficiency is improved; meanwhile, the armature winding is a radial inlet wire, and compared with an axial inlet wire, the armature winding has a simpler and more compact winding structure, has good process manufacturability and is convenient for realizing automatic manufacturing.
Further, the motor provided by the invention comprises the 72-slot 8-pole continuous wave winding, so that the motor at least has all technical effects of the 72-slot 8-pole continuous wave winding, and the description is omitted herein.
Drawings
FIG. 1 is a graph of in-slot conductor patterns of a 72 slot 8-pole continuous wave winding provided by an embodiment of the present invention;
fig. 2 is a U-phase first-branch winding connection diagram when a flat wire of three-phase parallel three-branch is wound around 6 layers of 72 slots in the first embodiment of the present invention;
fig. 3 is a U-phase second branch winding wiring diagram when a flat wire of three parallel three branches of three phases is wound around 6 layers of 72 slots in the first embodiment of the present invention;
fig. 4 is a U-phase third-branch winding connection diagram when a flat wire of three-phase parallel three-branch is wound around 6 layers of 72 slots in the first embodiment of the present invention;
fig. 5 is a wiring diagram of a U-phase first branch winding when a flat wire with three parallel three branches is wound around 6 layers of 72 slots in the second embodiment of the present invention;
fig. 6 is a U-phase second branch winding wiring diagram when a flat wire of three parallel three branches of three phases is wound around 6 layers of 72 slots in the second embodiment of the present invention;
fig. 7 is a U-phase third-branch winding connection diagram when a flat wire with three parallel three branches is wound around 6 layers of 72 slots in the second embodiment of the present invention;
FIG. 8 is a schematic view of a single continuous wave winding after molding according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a formed single-phase three-branch continuous wave winding according to an embodiment of the present invention.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided to illustrate the present invention, but are not intended to limit the scope of the present invention.
In a first aspect, an embodiment of the present invention provides a 72-slot 8-pole continuous wave winding, including: the three-phase parallel flat wire is adopted to pass through 6 layers of 72 slots layer by layer along the circumferential direction to obtain; the three phases are U phase, V phase and W phase, and the U phase winding, the V phase winding and the W phase winding are all formed by winding three branch flat wires.
In the U-phase winding, a first branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a first winding mode, a second branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a second winding mode, and a third branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a third winding mode;
the V-phase winding rotates for 3 slots along the increasing direction of the slots relative to the U-phase winding to obtain the V-phase winding;
the W-phase winding rotates for 6 slots along the increasing direction of the slots relative to the U-phase winding.
Further, the first winding mode, the second winding mode and the third winding mode are that the three flat wires are respectively wound from the first starting point, the second starting point and the third starting point of the 1 st layer to the 6 th layer in a crossing manner according to the current flow direction, and are reversely wound from the 6 th layer to the first end point, the second end point and the third end point of the 1 st layer; the span of the tri-flat wire between two adjacent stator slots of the same layer is 9;
the first starting point, the second starting point and the third starting point are sequentially separated by a groove.
Specifically, the first winding manner, the second winding manner, and the third winding manner are divided into:
the first winding mode comprises the following steps: the flat wire is wound at 9 slots at intervals sequentially from a first starting point of a layer 1 and then passes out to a layer 2, a starting point of the layer 2 is wound to a layer 3 in a staggered manner along the circumferential direction, 9 slots at intervals sequentially on the layer 3 are wound and then passes out to a layer 4, a starting point of the layer 4 is wound to a layer 5 in a staggered manner along the circumferential direction, 9 slots at intervals sequentially on the layer 5 are wound and then passes out to a layer 6, a starting point of the layer 6 is wound reversely along the circumferential direction and then passes out to a layer 5 at intervals sequentially, a starting point of the layer 5 is wound to a layer 4 in a staggered manner along the circumferential direction, 9 slots at intervals sequentially on the layer 4 are wound and then passes out to a layer 3, a starting point of the layer 3 is wound to a layer 2 in a staggered manner along the circumferential direction and then passes out to a layer 1 at intervals sequentially on the layer 2;
the second winding mode comprises the following steps: the flat wire is wound at 9 slots in sequence from a second starting point of the 1 st layer and then passes out to the 2 nd layer, the starting point of the 2 nd layer is wound to the 3 rd layer in a staggered manner along the circumferential direction, the 9 slots in sequence are wound on the 3 rd layer and then passes out to the 4 th layer, the starting point of the 4 th layer is wound to the 5 th layer in a staggered manner along the circumferential direction, the 9 slots in sequence are wound on the 5 th layer and then passes out to the 6 th layer, the starting point of the 6 th layer is wound at 9 slots in sequence and then passes out to the 5 th layer in a reversed manner along the circumferential direction, the starting point of the 5 th layer is wound to the 4 th layer in a reversed manner along the circumferential direction, the 9 slots in sequence are wound on the 4 th layer in a staggered manner and then passes out to the 3 rd layer, the starting point of the 3 rd layer is wound to the 2 nd layer in a reversed manner along the circumferential direction, the 9 slots in sequence are wound on the 2 nd layer in a staggered manner and then passes out to the 1 st layer;
the third winding mode comprises the following steps: the flat wire passes through the layer 2 after being wound by 9 slots at intervals sequentially from the third starting point of the layer 1, the starting point of the layer 2 is firstly staggered and wound to the layer 3 along the circumferential direction, the starting point of the layer 3 passes through the layer 4 after being wound by 9 slots at intervals sequentially, the starting point of the layer 4 is firstly staggered and wound to the layer 5 along the circumferential direction, the starting point of the layer 6 passes through the layer 6 after being wound by 9 slots at intervals sequentially, the starting point of the layer 5 passes through the layer 5 after being wound by 9 slots at intervals sequentially along the circumferential direction, the starting point of the layer 5 passes through the layer 3 after being wound by 9 slots at intervals sequentially along the circumferential direction, the starting point of the layer 3 passes through the layer 2 after being wound by 9 slots at intervals, and the starting point of the layer 3 passes through the layer 1 after being wound by 9 slots at intervals sequentially along the circumferential direction.
As shown in fig. 1, the winding provided in the embodiment of the present invention has 6 layers of slots, taking a three-phase parallel three-branch flat wire passing through 6 layers of 72 slots as an example, the pole number is 8, and xy is defined as the y layer of the x slot, where x e [1, 72], y e [ a, f ], a-f are 1-6 layers of numbers of conductors in the slots, for example: 1a is the layer a of the 1 st stator slot, 1-48 in the table are the sequence of the flowing of the marked current in the slot, wherein the number 1 is the position where the branch current starts to flow in, i.e. U+, the number 48 is the position where the branch current finally flows out, i.e. U-, the arrow line represents the running of the flat wire, and the arrow direction is the torsion direction. AA is a U-phase first branch, AB is a U-phase second branch, and AC is a U-phase third branch. The following description is made in connection with specific embodiments:
embodiment one:
in the three-branch winding, the corresponding branch number is 3;
as shown in fig. 2, winding connection routes from u+ to U-in the first branch of the U-phase winding are sequentially: 10 a-19 a-28 a-37 a-46 a-55 a-64 a-1 b-11 c-20 c-29 c-38 c-47 c-56 c-65 c-2 d-12 e-21 e-30 e-39 e-48 e-57 e-66 e-3 f-64 f-55 f-46 f-37 f-28 f-19 f-10 f-1 e-65 d-56 d-47 d-38 d-29 d-20 d-11 d-2 c-66 b-57 b-48 b-39 b-30 b-21 b-12 b-3 a. The branch current flows in from 10a and out from 3 a.
The single continuous wave winding formed by winding the single flat wire through the first branch is shown in fig. 8, which is only an example, and does not limit the specific shape of the flat wire, and does not affect the protection scope of the present invention.
As shown in fig. 3, winding connection routes from u+ to U-in the second branch of the U-phase winding are sequentially: 11a, 20a, 29a, 38a, 47a, 56a, 65a, 2b, 12c, 21c, 30c, 39c, 48c, 57c, 66c, 3d, 10e, 19e, 28e, 37e, 46e, 55e, 64e, 1f, 65f, 56f, 47f, 38f, 29f, 20f, 11f, 2e, 66d, 57d, 48d, 39d, 30d, 21d, 12d, 3c, 64b, 55b, 46b, 37b, 28b, 19b, 10b, 1 a. The branch current flows in from 11a and out from 1 a.
As shown in fig. 4, winding connection routes from u+ to U-in the third leg of the U-phase winding are sequentially: 12 a-21 a-30 a-39 a-48 a-57 a-66 a-3 b-10 c-19 c-28 c-37 c-46 c-55 c-64 c-1 d-11 e-20 e-29 e-38 e-47 e-56 e-65 e-2 f → 66 f- & gt 57 f- & gt 48 f- & gt 39 f- & gt 30 f- & gt 21 f- & gt 12 f- & gt 3 e- & gt 64 d- & gt 55 d- & gt 46 d- & gt 37 d- & gt 28 d- & gt 19 d- & gt 10 d- & gt 1 c- & gt 65 b- & gt 56 b- & gt 47 b- & gt 38 b- & gt 29 b- & gt 20 b- & gt 11 b- & gt 2a; the branch current flows in from 12a and out from 2 a.
Taking the U-phase first branch as an example, taking AA 1-AA 24 as independent continuous wave winding sections and AA 25-AA 48 as independent continuous wave winding sections for the U-phase first branch AA, and connecting the AA24 and the AA25 in a welding mode, a bus bar mode and the like. The second branch AB and the third branch AC are identical.
The single-phase continuous wave winding formed by winding the three flat wires of the U-phase three branches through the first branch, the second branch and the third branch is shown in fig. 9, and is only used as an example herein, and the specific shape of the flat wires is not limited, so that the protection scope of the invention is not affected.
The winding mode of the V-phase winding is obtained by rotating the U-phase winding for 3 slots along the increasing direction of the slot number, namely, a first branch flows in (13 a) from the a-th slot of the No. 13 slot and flows out (6 a) from the a-th slot of the No. 6 slot, a second branch flows in (14 a) from the a-th slot of the No. 14 slot and flows out (4 a) from the a-th slot of the No. 4 slot, a third branch flows in (15 a) from the a-th slot of the No. 15 slot and flows out (5 a) from the f-th slot of the No. 5 slot, and the corresponding winding is performed by a person skilled in the art according to the content, so that the detailed connection route is not necessary.
The winding method of the W-phase winding is that the U-phase winding is obtained by rotating 6 slots along the increasing direction of the slot number, namely, a first branch flows in (16 a) from the a layer of the slot number 16 and finally flows out (9 a) from the a layer of the slot number 9, a second branch flows in (17 a) from the a layer of the slot number 17 and finally flows out (7 a) from the a layer of the slot number 7, a third branch flows in (18 a) from the a layer of the slot number 18 and finally flows out (8 a) from the a layer of the slot number 8, and the corresponding winding is performed by a person skilled in the art according to the content, so that the detailed connecting route is not redundant.
Example two
In the three-branch winding, the corresponding branch number is 3;
as shown in fig. 5, winding connection routes from u+ to U-in the first branch of the U-phase winding are sequentially: 10 a-19 a-28 a-37 a-46 a-55 a-64 a-1 b-12 c-21 c-30 c-39 c-48 c-57 c-66 c-3 d-11 e-20 e-29 e-38 e-47 e-56 e-65 e-2 f-64 f-55 f-46 f-37 f-28 f-19 f-10 f-1 e-66 d-57 d-48 d-39 d-30 d-21 d-12 d-3 c-65 b-56 b-47 b-38 b-29 b-20 b-11 b-2 a. The branch current flows in from 10a and out from 2 a.
As shown in fig. 6, the winding connection routes from u+ to U-in the second branch of the U-phase winding are in order: 11a, 20a, 29a, 38a, 47a, 56a, 65a, 2b, 10c, 19c, 28c, 37c, 46c, 55c, 64c, 1d, 12e, 21e, 30e, 39e, 48e, 57e, 66e, 3f, 65f, 56f, 47f, 38f, 29f, 20f, 11f, 2e, 64d, 55d, 46d, 37d, 28d, 26d, 10d, 1c, 66b, 57b, 48b, 39b, 30b, 21b, 12b, 3 a. The branch current flows in from 11a and out from 3 a.
As shown in fig. 7, winding connection routes from u+ to U-in the third leg of the U-phase winding are sequentially: 12 a-21 a-30 a-39 a-48 a-57 a-66 a-3 b-11 c-20 c-29 c-38 c-47 c-56 c-65 c-2 d-10 e-19 e-28 e-37 e-46 e-55 e-64 e-1 f → 66 f- & gt 57 f- & gt 48 f- & gt 39 f- & gt 30 f- & gt 21 f- & gt 12 f- & gt 3 e- & gt 65 d- & gt 56 d- & gt 47 d- & gt 38 d- & gt 29 d- & gt 20 d- & gt 11 d- & gt 2 c- & gt 64 b- & gt 55 b- & gt 46 b- & gt 37 b- & gt 28 b- & gt 19 b- & gt 10 b- & gt 1 a. The branch current flows in from 12a and out from 1 a.
The winding mode of the V-phase winding is obtained by rotating the U-phase winding for 3 slots along the increasing direction of the slot number, namely, a first branch flows in (13 a) from the a-th slot of the No. 13 slot and flows out (5 a) from the a-th slot of the No. 5 slot, a second branch flows in (14 a) from the a-th slot of the No. 14 slot and flows out (6 a) from the a-th slot of the No. 6 slot, a third branch flows in (15 a) from the a-th slot of the No. 15 slot and flows out (4 a) from the f-th slot of the No. 4 slot, and the corresponding winding is performed by a person skilled in the art according to the content, so that the detailed connection route is not necessary.
The winding method of the W-phase winding is that the U-phase winding is obtained by rotating 6 slots along the increasing direction of the slot number, namely, a first branch flows in (16 a) from the a-th layer of the slot number 16 and finally flows out (8 a) from the a-th layer of the slot number 8, a second branch flows in (17 a) from the a-th layer of the slot number 17 and finally flows out (9 a) from the a-th layer of the slot number 9, a third branch flows in (18 a) from the a-th layer of the slot number 18 and finally flows out (7 a) from the a-th layer of the slot number 7, and the corresponding winding is performed by a person skilled in the art according to the content, so that the detailed connecting route is not redundant.
Compared with the traditional hairpin motor, the armature winding has the advantages of no need of welding at the end after forming, lower end height, higher torque density of the same length and the like, and is good in process manufacturability and suitable for batch production.
In a second aspect, an embodiment of the present invention further provides an electric machine, including: a rotor and a 72 slot 8 pole continuous wave wound winding as in any of the embodiments of the first aspect; the rotor is rotatable relative to the 72 slot 8-pole continuous wave winding.
Because the motor adopts the 72-slot 8-pole continuous wave winding described in the above embodiment, the specific structure of the 72-slot 8-pole continuous wave winding refers to the above embodiment, and because the motor adopts all the technical schemes of all the above embodiments, the motor has at least all the beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated here.
In the description of the present specification, the description with reference to the term "particular example" or "some examples" or the like means 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 embodiments of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. A 72 slot 8 pole continuous wave winding comprising: the three-phase parallel flat wire is adopted to pass through 6 layers of 72 slots layer by layer along the circumferential direction to obtain;
the three phases are U-phase, V-phase and W-phase, and the U-phase winding, the V-phase winding and the W-phase winding are formed by winding three branch flat wires;
in the U-phase winding, a first branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a first winding mode, a second branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a second winding mode, and a third branch is formed by winding a flat wire through 6 layers of 72 slot positions according to a third winding mode; the span of the tri-flat wire between two adjacent stator slots of the same layer is 9; the starting point of the first branch, the starting point of the second branch and the starting point of the third branch are sequentially separated by a slot;
the V-phase winding rotates for 3 slots along the increasing direction of the slots relative to the U-phase winding to obtain the V-phase winding;
the W-phase winding rotates for 6 slots along the increasing direction of the slots relative to the U-phase winding to obtain the W-phase winding;
when the flat wire with three parallel three branches is adopted to pass through 6 layers of 72 slots, the pole number is 8, and the branch number is 3; defining xy as the y layer of the x slot position, wherein x is 1, 72, y is a, f, a-f are 1-6 layer numbers of conductors in the slot, a is a layer in the slot;
the first winding mode is as follows:
10 a-19 a-28 a-37 a-46 a-55 a-64 a-1 b-11 c-20 c-29 c-38 c-47 c-56 c-65 c-2 d-12 e-21 e-30 e-39 e-48 e-57 e-66 e-3 f-64 f-55 f-46 f-37 f-28 f-19 f-10 f-1 e-65 d-56 d-47 d-38 d-29 d-20 d-11 d-2 c-66 b-57 b-48 b-39 b-30 b-21 b-12 b-3 a. The branch current flows in from 10a, and flows out from 3a;
the second winding mode is as follows:
11a, 20a, 29a, 38a, 47a, 56a, 65a, 2b, 12c, 21c, 30c, 39c, 48c, 57c, 66c, 3d, 10e, 19e, 28e, 37e, 46e, 55e, 64e, 1f, 65f, 56f, 47f, 38f, 29f, 20f, 11f, 2e, 66d, 57d, 48d, 39d, 30d, 21d, 12d, 3c, 64b, 55b, 46b, 37b, 28b, 19b, 10b, 1 a. The branch current flows in from 11a, and 1a flows out;
the third winding mode is as follows:
12 a-21 a-30 a-39 a-48 a-57 a-66 a-3 b-10 c-19 c-28 c-37 c-46 c-55 c-64 c-1 d-11 e-20 e-29 e-38 e-47 e-56 e-65 e-2 f → 66 f- & gt 57 f- & gt 48 f- & gt 39 f- & gt 30 f- & gt 21 f- & gt 12 f- & gt 3 e- & gt 64 d- & gt 55 d- & gt 46 d- & gt 37 d- & gt 28 d- & gt 19 d- & gt 10 d- & gt 1 c- & gt 65 b- & gt 56 b- & gt 47 b- & gt 38 b- & gt 29 b- & gt 20 b- & gt 11 b- & gt 2a; the branch current flows in from 12a, and 2a flows out;
in the first winding mode, 10 a-3 f are independent continuous wave winding sections, 64 f-3 a are independent continuous wave winding sections, and 3f and 64f are connected through welding or bus bars;
in the second winding mode, 10 a-1 f are independent continuous wave winding sections, 65 f-1 a are independent continuous wave winding sections, and 1f and 65f are connected through welding or bus bars;
in the third winding mode, 12 a-2 f are independent continuous wave winding sections, 66 f-2 a are independent continuous wave winding sections, and 2f and 66f are connected through welding or bus bars.
2. An electric machine, comprising: a rotor and a 72 slot 8 pole continuous wave winding as defined in claim 1; the rotor is rotatable relative to the 72 slot 8-pole continuous wave winding.
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| CN117097053B (en) * | 2023-10-19 | 2023-12-26 | 博格华纳汽车零部件（武汉）有限公司 | 72-slot 6-pole 4-branch hairpin type flat wire armature winding and motor |
| CN117097051B (en) * | 2023-10-20 | 2024-01-02 | 博格华纳汽车零部件（武汉）有限公司 | 72-slot 6-pole 2-branch hairpin type flat wire armature winding and motor |
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