CN115940471B - Continuous wave winding armature winding and motor - Google Patents
Continuous wave winding armature winding and motor Download PDFInfo
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- CN115940471B CN115940471B CN202310228894.9A CN202310228894A CN115940471B CN 115940471 B CN115940471 B CN 115940471B CN 202310228894 A CN202310228894 A CN 202310228894A CN 115940471 B CN115940471 B CN 115940471B
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Abstract
The invention provides a continuous wave winding armature winding and a motor, wherein the continuous wave winding armature winding is obtained by adopting three-phase parallel flat wires to pass through 6 layers of 3N multiplied by M slot positions layer by layer along the circumferential direction, M is the pole number, and N is the branch number; the three branch flat wires in the U-phase winding sequentially pass through the 1 st layer to the 6 th layer respectively according to the sequence of current flowing through the slots, and the flat wires in the first branch are wound from a first starting point according to a first winding mode; winding the flat wire in the second branch from a second starting point according to a second winding mode; winding the flat wire in the third branch from a third starting point according to a third winding mode; the V-phase winding rotates N 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 2N 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 continuous wave winding armature 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 continuous wave winding armature winding.
Disclosure of Invention
Based on the expression, the invention provides a continuous wave winding armature 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 continuous wave wound armature winding comprising: the method comprises the steps of (1) winding 6 layers of 3N multiplied by M slot positions layer by layer along the circumferential direction by adopting three-phase parallel flat wires to obtain, wherein M is the pole number, and N is the branch number;
the three phases are a U phase, a V phase and a W phase; in the U-phase winding, the three-branch flat wire sequentially passes through the 1 st layer to the 6 th layer according to the sequence of current flowing in the groove, and the passing mode comprises the following steps: in the first branch, winding the 1 st to 6 th layers according to a first winding mode from a first starting point of the 1 st layer; in the second branch, winding the flat wire from the second starting point of the 1 st layer to the 6 th layer according to a second winding mode; in the third branch, winding the flat wire from the third starting point of the 1 st layer to the 6 th layers according to a third winding mode;
the V-phase winding rotates N 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 2N 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 includes: layer 1: the flat wire is wound by alternately staggering 3N+2 slots and 3N-2 slots one by one from the first starting point of the 1 st layer according to the sequence; layer 2: winding the flat wire from the tail end of the 1 st layer at intervals of 3N slots in sequence; layer 3: the flat wires from the tail end of the layer 2 are wound by alternately staggering 3N-2 slots and 3N+2 slots one by one according to the sequence; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 1 st layer; layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 3 rd layer;
the second winding mode comprises the following steps: layer 1: winding the flat wire from a second starting point of the 1 st layer according to 3N slots at intervals in sequence, wherein the second starting point is 1 slot larger than the first starting point; layer 2: the flat wires from the tail end of the 1 st layer are wound by alternately staggering 3N+2 slots and 3N-2 slots one by one according to the sequence; layer 3: the flat wire from the tail end of the layer 2 is wound according to the same winding mode as the layer 2; layer 4: the flat wires from the tail end of the 3 rd layer are wound by alternately staggering 3N-2 slots and 3N+2 slots one by one according to the sequence; layer 5: the flat wire from the end of the 4 th layer is wound according to the same winding mode as the 4 th layer; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 1 st layer;
the third winding mode comprises the following steps: layer 1: the flat wire is wound by alternately staggering 3N-2 slots and 3N+2 slots from the starting point of the 1 st layer one by one in sequence, wherein the third starting point is 1 slot larger than the second starting point; layer 2: the flat wire from the tail end of the 1 st layer is wound according to the same winding mode as the 1 st layer; layer 3: winding the flat wire from the tail end of the layer 2 at intervals of 3N slots in sequence; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 3 rd layer; layer 5: the flat wires from the tail end of the 4 th layer are wound by alternately staggering 3N+2 slots and 3N-2 slots one by one according to the sequence; layer 6: the flat wire from the 5 th layer end is wound in the same winding manner as the 5 th layer.
Further, 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, wherein x epsilon [1, 72], y epsilon [ a, f ], and winding connection routes from U+ to U-in the first branch of the U-phase winding are as follows: 1a, 12a, 19a, 30a, 37a, 48a, 55a, 66a, 2b, 11b, 20b, 29b, 38b, 47b, 56b, 65b, 3c, 10c, 21c, 28c, 39c, 46c, 57c, 64c, 1d, 12d, 19d, 30d, 37d, 48d, 55d, 66d, 2e, 11e, 20e, 29e, 38e, 47e, 56e, 65e, 3f, 10f, 21f, 28f, 39f, 46f, 57f, 64f;
the winding connection route from U+ to U-in the second branch of the U-phase winding is as follows: 2a, 11a, 20a, 29a, 38a, 47a, 56a, 65a, 1b, 12b, 19b, 30b, 37b, 48b, 55b, 66b, 1c, 12c, 19c, 30c, 37c, 48c, 55c, 66c, 3d, 10d, 21d, 28d, 39d, 46d, 57d, 64d, 3e, 10e, 21e, 28e, 39e, 46e, 57e, 64e, 2f, 11f, 20f, 29f, 38f, 47f, 56f, 65f;
the winding connection route from U+ to U-in the third branch of the U-phase winding is as follows: 3a, 10a, 21a, 28a, 39a, 46a, 57a, 64a, 3b, 10b, 21b, 28b, 39b, 46b, 57b, 64b, 2c, 11c, 20c, 29c, 38c, 47c, 56c, 65c, 2d, 11d, 20d, 29d, 38d, 47d, 56d, 65d, 1e, 12e, 19e, 30e, 37e, 48e, 55e, 66e, 1f, 12f, 19f, 30f, 37f, 48f, 55f, 66f.
Further, the first winding mode includes: layer 1: the flat wire is wound by alternately staggering 3N+2 slots and 3N-2 slots one by one from the first starting point of the 1 st layer according to the sequence; layer 2: winding the flat wire from the tail end of the 1 st layer at intervals of 3N slots in sequence; layer 3: the flat wires from the tail end of the layer 2 are wound by alternately staggering 3N-2 slots and 3N+2 slots one by one according to the sequence; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 3 rd layer; layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 1 st layer;
the second winding mode comprises the following steps: layer 1: winding the flat wire from a second starting point of the 1 st layer according to 3N slots at intervals in sequence, wherein the second starting point is 1 slot larger than the first starting point; layer 2: the flat wires from the tail end of the 1 st layer are wound by alternately staggering 3N+2 slots and 3N-2 slots one by one according to the sequence; layer 3: the flat wire from the tail end of the layer 2 is wound according to the same winding mode as the layer 2; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the layer 2; layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2; layer 6: the flat wire from the 5 th layer end is wound in the same winding manner as the 1 st layer.
The third winding mode comprises the following steps: layer 1: the flat wire is wound by alternately staggering 3N-2 slots and 3N+2 slots from the starting point of the 1 st layer one by one in sequence, wherein the third starting point is 1 slot larger than the second starting point; layer 2: winding the winding wire from the tail end of the 1 st layer according to the same winding mode as the 1 st layer; layer 3: winding the winding wire from the tail end of the layer 2 at intervals of 3N slots in sequence; layer 4: winding the winding wire from the tail end of the 3 rd layer according to the same winding mode as the 3 rd layer; layer 5: winding the winding wire from the tail end of the 4 th layer according to the same winding mode as the 1 st layer; layer 6: the winding from the 5 th layer end is wound in the same manner as the 1 st layer.
Further, when the flat wire with three parallel three branches is adopted to pass through 6 layers of 72 slots, the pole number is 3, and the branch number is 3; defining xy as the y layer of the x slot, wherein x epsilon [1, 72], y epsilon [ a, f ], and winding connection routes from U+ to U-in the first branch of the U-phase winding are as follows: 1a, 12a, 19a, 30a, 37a, 48a, 55a, 66a, 2b, 11b, 20b, 29b, 38b, 47b, 56b, 65b, 3c, 10c, 21c, 28c, 39c, 46c, 57c, 64c, 3d, 10d, 21d, 28d, 39d, 46d, 57d, 64d, 2e, 11e, 20e, 29e, 38e, 47e, 56e, 65e, 1f, 12f, 19f, 30f, 37f, 48f, 55f, 66f;
the winding connection route from U+ to U-in the second branch of the U-phase winding is as follows: 2a, 11a, 20a, 29a, 38a, 47a, 56a, 65a, 1b, 12b, 19b, 30b, 37b, 48b, 55b, 66b, 1c, 12c, 19c, 30c, 37c, 48c, 55c, 66c, 1d, 12d, 19d, 30d, 37d, 48d, 55d, 66d, 1e, 12e, 19e, 30e, 37e, 48e, 55e, 66e, 2f, 11f, 20f, 29f, 38f, 47f, 56f, 65f;
the winding connection route from U+ to U-in the third branch of the U-phase winding is as follows: 3a, 10a, 21a, 28a, 39a, 46a, 57a, 64a, 3b, 10b, 21b, 28b, 39b, 46b, 57b, 64b, 2c, 11c, 20c, 29c, 38c, 47c, 56c, 65c, 2d, 11d, 20d, 29d, 38d, 47d, 56d, 65d, 3e, 10e, 21e, 28e, 39e, 46e, 57e, 64e, 3f, 10f, 21f, 28f, 39f, 46f, 57f, 64f.
In a second aspect, the present invention also provides an electric machine comprising: a rotor and a continuous wave wound armature winding as defined in any one of the first aspects; the rotor is rotatable about an armature winding relative to the continuous wave.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
the continuous wave winding armature winding provided by the invention is obtained by adopting the three-phase parallel flat wire to pass through 6 layers of 3N multiplied by M slots layer by layer along the circumferential direction, any one phase winding of the three-phase winding is provided with three branch flat wires, the three branch flat wires respectively pass through the 1 st layer to the 6 th layer in turn according to the sequence of current flowing through the slots to form the continuous wave winding armature winding, namely, a continuous wave winding mode is provided, and compared with the existing hairpin winding, the continuous wave winding armature winding mode has the advantages that the end part is not required to be welded after being formed, the end part height is lower, 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 continuous wave winding armature winding, so that the motor at least has all technical effects of the continuous wave winding armature winding, and the description is omitted herein.
Drawings
FIG. 1 is a graph of in-slot conductor patterns of a continuous wave wound armature winding provided in an embodiment of the 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, embodiments of the present invention provide a continuous wave wound armature winding comprising: the method comprises the steps of (1) winding 6 layers of 3N multiplied by M slot positions layer by layer along the circumferential direction by adopting three-phase parallel flat wires to obtain, wherein M is the pole number, and N is the branch number; the three phases are U phase, V phase and W phase.
In the U-phase winding, the three-branch flat wire sequentially passes through the 1 st layer to the 6 th layer according to the sequence of current flowing in the groove, and the passing mode comprises the following steps: in the first branch, winding the 1 st to 6 th layers according to a first winding mode from a first starting point of the 1 st layer; in the second branch, winding the flat wire from the second starting point of the 1 st layer to the 6 th layer according to a second winding mode; in the third branch, the flat wire is wound from the third starting point of the 1 st layer according to the third winding manner from the 1 st layer to the 6 th layer.
The V-phase winding rotates N slots along the increasing direction of the slots relative to the U-phase winding.
The W-phase winding rotates for 2N slots along the increasing direction of the slots relative to the U-phase winding.
As shown in fig. 1, the winding provided in the embodiment of the present invention has 6 layers of slots, taking a case that a flat wire of three parallel three branches passes through 6 layers of 72 slots, 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, 1-48 in the table are sequences of marking current flowing through the slots, where numeral 1 is a position where the current of the branch starts to flow, i.e. u+, numeral 48 is a position where the current of the branch finally flows, i.e. U-, the arrow line indicates the routing of the flat wire, and the arrow direction is a twisting direction. AA is a U-phase first branch, AB is a U-phase second branch, and AC is a U-phase third branch.
Embodiment one:
in the three-branch winding, the corresponding branch number N is 3, and in the first branch of the U-phase winding, the winding mode is as follows:
layer 1: the flat wire is wound by alternately staggering 11 slot positions and 9 slot positions from the first starting point of the 1 st layer one by one according to the sequence;
layer 2: winding the flat wire from the tail end of the layer 1 at 9 slots according to the sequence;
layer 3: the flat wires from the tail end of the layer 2 are wound by alternately staggering 7 slots and 11 slots one by one according to the sequence;
layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 1 st layer;
layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2;
layer 6: the flat wire from the 5 th layer end is wound in the same winding manner as the 3 rd layer.
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.
In the second branch of the U-phase winding, the winding mode is as follows:
layer 1: winding the flat wire from a second starting point of the 1 st layer at 9 slots according to the sequence interval, wherein the second starting point is 1 slot larger than the first starting point;
layer 2: the flat wires from the tail end of the 1 st layer are wound by alternately staggering 11 slots and 7 slots one by one according to the sequence;
layer 3: the flat wire from the tail end of the layer 2 is wound according to the same winding mode as the layer 2;
layer 4: the flat wires from the tail end of the 3 rd layer are wound by alternately staggering 7 slots and 11 slots one by one according to the sequence;
layer 5: the flat wire from the end of the 4 th layer is wound according to the same winding mode as the 4 th layer;
layer 6: the flat wire from the 5 th layer end is wound in the same winding manner as the 1 st layer.
In the third branch of the U-phase winding, the winding mode is as follows:
layer 1: the flat wire is wound by alternately staggering 7 slots and 11 slots one by one from the starting point of the 1 st layer according to the sequence, wherein the third starting point is 1 slot larger than the second starting point;
layer 2: the flat wire from the tail end of the 1 st layer is wound according to the same winding mode as the 1 st layer;
layer 3: winding the flat wire from the tail end of the layer 2 at 9 slots according to the sequence;
layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 3 rd layer;
layer 5: the flat wires from the tail end of the 4 th layer are wound by alternately staggering 11 slots and 7 slots one by one according to the sequence;
layer 6: the flat wire from the 5 th layer end is wound in the same winding manner as the 5 th layer.
In a specific example, as shown in fig. 2, the winding connection routes from u+ to U-in the first leg of the U-phase winding are in order: 1a, 12a, 19a, 30a, 37a, 48a, 55a, 66a, 2b, 11b, 20b, 29b, 38b, 47b, 56b, 65b, 3c, 10c, 21c, 28c, 39c, 46c, 57c, 64c, 1d, 12d, 19d, 30d, 37d, 48d, 55d, 66d, 2e, 11e, 20e, 29e, 38e, 47e, 56e, 65e, 3f, 10f, 21f, 28f, 39f, 46f, 57f, 64f; the bypass current flows in from 1a and out from 64f.
As shown in fig. 3, winding connection routes from u+ to U-in the second leg of the U-phase winding are sequentially: 2a, 11a, 20a, 29a, 38a, 47a, 56a, 65a, 1b, 12b, 19b, 30b, 37b, 48b, 55b, 66b, 1c, 12c, 19c, 30c, 37c, 48c, 55c, 66c, 3d, 10d, 21d, 28d, 39d, 46d, 57d, 64d, 3e, 10e, 21e, 28e, 39e, 46e, 57e, 64e, 2f, 11f, 20f, 29f, 38f, 47f, 56f, 65f; the branch current flows in from 2a and out from 65 f.
As shown in fig. 4, winding connection routes from u+ to U-in the third leg of the U-phase winding are sequentially: 3a, 10a, 21a, 28a, 39a, 46a, 57a, 64a, 3b, 10b, 21b, 28b, 39b, 46b, 57b, 64b, 2c, 11c, 20c, 29c, 38c, 47c, 56c, 65c, 2d, 11d, 20d, 29d, 38d, 47d, 56d, 65d, 1e, 12e, 19e, 30e, 37e, 48e, 55e, 66e, 1f, 12f, 19f, 30f, 37f, 48f, 55f, 66f; the bypass current flows in from 3a and out from 66f.
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 (4 a) from the a-th layer of the slot number 4 and finally flows out (67 f) from the f-th layer of the slot number 67, a second branch flows in (5 a) from the a-th layer of the slot number 5 and finally flows out (68 f) from the f-th layer of the slot number 68, a third branch flows in (6 a) from the a-th layer of the slot number 6 and finally flows out (69 f) from the f-th layer of the slot number 69, and the operation is carried out according to the corresponding winding by the person skilled in the art, so that the detailed connecting 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 (7 a) from the a-th layer of the slot number 7, flows out (70 f) from the f-th layer of the slot number 70, a second branch flows in (8 a) from the a-th layer of the slot number 8, flows out (71 f) from the f-th layer of the slot number 71, a third branch flows in (9 f) from the a-th layer of the slot number 9, and flows out (72 f) from the f-th layer of the slot number 72, 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 redundant.
Example two
In the three-branch winding, the corresponding branch number N is 3, and in the first branch of the U-phase winding, the winding mode is as follows:
layer 1: the flat wire is wound by alternately staggering 11 slot positions and 7 slot positions from the first starting point of the 1 st layer one by one according to the sequence;
layer 2: winding the flat wire from the tail end of the layer 1 at 9 slots according to the sequence;
layer 3: the flat wires from the tail end of the layer 2 are wound by alternately staggering 7 slots and 11 slots one by one according to the sequence;
layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 3 rd layer;
layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2;
layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 1 st layer;
in the second branch of the U-phase winding, the winding mode is as follows:
layer 1: winding the flat wire from a second starting point of the 1 st layer at 9 slots according to the sequence interval, wherein the second starting point is 1 slot larger than the first starting point;
layer 2: the flat wires from the tail end of the 1 st layer are wound by alternately staggering 11 slots and 7 slots one by one according to the sequence;
layer 3: the flat wire from the tail end of the layer 2 is wound according to the same winding mode as the layer 2;
layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the layer 2;
layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2;
layer 6: the flat wire from the 5 th layer end is wound in the same winding manner as the 1 st layer.
In the third branch of the U-phase winding, the winding mode is as follows:
layer 1: the flat wire is wound by alternately staggering 7 slots and 11 slots one by one from the starting point of the 1 st layer according to the sequence, wherein the third starting point is 1 slot larger than the second starting point;
layer 2: winding the winding wire from the tail end of the 1 st layer according to the same winding mode as the 1 st layer;
layer 3: winding the winding wire from the tail end of the layer 2 at 9 slots according to the sequence interval;
layer 4: winding the winding wire from the tail end of the 3 rd layer according to the same winding mode as the 3 rd layer;
layer 5: winding the winding wire from the tail end of the 4 th layer according to the same winding mode as the 1 st layer;
layer 6: the winding from the 5 th layer end is wound in the same manner as the 1 st layer.
In a specific example, as shown in fig. 5, the winding connection routes from u+ to U-in the first leg of the U-phase winding are in order: 1a, 12a, 19a, 30a, 37a, 48a, 55a, 66a, 2b, 11b, 20b, 29b, 38b, 47b, 56b, 65b, 3c, 10c, 21c, 28c, 39c, 46c, 57c, 64c, 3d, 10d, 21d, 28d, 39d, 46d, 57d, 64d, 2e, 11e, 20e, 29e, 38e, 47e, 56e, 65e, 1f, 12f, 19f, 30f, 37f, 48f, 55f, 66f; the bypass current flows in from 1a and out from 66f.
As shown in fig. 6, winding connection routes from u+ to U-in the second leg of the U-phase winding are sequentially: 2a, 11a, 20a, 29a, 38a, 47a, 56a, 65a, 1b, 12b, 19b, 30b, 37b, 48b, 55b, 66b, 1c, 12c, 19c, 30c, 37c, 48c, 55c, 66c, 1d, 12d, 19d, 30d, 37d, 48d, 55d, 66d, 1e, 12e, 19e, 30e, 37e, 48e, 55e, 66e, 2f, 11f, 20f, 29f, 38f, 47f, 56f, 65f; the bypass current flows in from 2a and finally out from 65 f.
As shown in fig. 7, winding connection routes from u+ to U-in the third leg of the U-phase winding are sequentially: 3a, 10a, 21a, 28a, 39a, 46a, 57a, 64a, 3b, 10b, 21b, 28b, 39b, 46b, 57b, 64b, 2c, 11c, 20c, 29c, 38c, 47c, 56c, 65c, 2d, 11d, 20d, 29d, 38d, 47d, 56d, 65d, 3e, 10e, 21e, 28e, 39e, 46e, 57e, 64e, 3f, 10f, 21f, 28f, 39f, 46f, 57f, 64f; the bypass current flows in from 3a and finally out from 64f.
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 (4 a) from the a-th layer of the slot number 4 and finally flows out (69 f) from the f-th layer of the slot number 69, a second branch flows in (5 a) from the a-th layer of the slot number 5 and finally flows out (68 f) from the f-th layer of the slot number 68, a third branch flows in (6 a) from the a-th layer of the slot number 6 and finally flows out (67 f) from the f-th layer of the slot number 67, and the operation is carried out according to the corresponding winding by a person skilled in the art, so that the detailed connecting route is not needed.
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 (7 a) from the a-th layer of the slot number 7, flows out (72 f) from the f-th layer of the slot number 72, a second branch flows in (8 a) from the a-th layer of the slot number 8, flows out (71 f) from the f-th layer of the slot number 71, a third branch flows in (9 f) from the a-th layer of the slot number 9, and flows out (70 f) from the f-th layer of the slot number 70, 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 redundant.
The motor of the above embodiment of the present invention is a flat wire continuous wave winding armature winding with the number of poles being 8 and the number of stator slots being 72, and in practical operation, the winding is equally applicable to other stators with the number of slots per phase being 3, for example, winding of a flat wire armature winding with 6 poles 54 slots can be realized by deleting a winding with 18 slots corresponding to 2 poles, so the winding mode of the continuous wave winding armature winding provided by the present invention is not limited to winding of a flat wire armature winding with 8 poles 72 slots. 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 continuous wave wound armature winding as described in any of the embodiments of the first aspect; the rotor is rotatable about an armature winding relative to the continuous wave.
Because the motor adopts the continuous wave winding armature winding described in the above embodiment, and the specific structure of the continuous wave winding armature winding refers to the above embodiment, the motor adopts all the technical solutions of all the above embodiments, so that the motor at least has all the beneficial effects brought by the technical solutions 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 (4)
1. A continuous wave wound armature winding comprising: the method comprises the steps of (1) winding 6 layers of 3N multiplied by M slot positions layer by layer along the circumferential direction by adopting three-phase parallel flat wires to obtain, wherein M is the pole number, and N is the branch number;
the three phases are a U phase, a V phase and a W phase; in the U-phase winding, the three-branch flat wire sequentially passes through the 1 st layer to the 6 th layer according to the sequence of current flowing in the groove, and the passing mode comprises the following steps: in the first branch, winding the 1 st to 6 th layers according to a first winding mode from a first starting point of the 1 st layer; in the second branch, winding the flat wire from the second starting point of the 1 st layer to the 6 th layer according to a second winding mode; in the third branch, winding the flat wire from the third starting point of the 1 st layer to the 6 th layers according to a third winding mode;
the V-phase winding rotates N 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 2N slots along the increasing direction of the slots relative to the U-phase winding to obtain the W-phase winding;
wherein, the first winding mode includes: layer 1: the flat wire is wound by alternately staggering 3N+2 slots and 3N-2 slots one by one from the first starting point of the 1 st layer according to the sequence; layer 2: winding the flat wire from the tail end of the 1 st layer at intervals of 3N slots in sequence; layer 3: the flat wires from the tail end of the layer 2 are wound by alternately staggering 3N-2 slots and 3N+2 slots one by one according to the sequence; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 1 st layer; layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 3 rd layer;
the second winding mode comprises the following steps: layer 1: winding the flat wire from a second starting point of the 1 st layer according to 3N slots at intervals in sequence, wherein the second starting point is 1 slot larger than the first starting point; layer 2: the flat wires from the tail end of the 1 st layer are wound by alternately staggering 3N+2 slots and 3N-2 slots one by one according to the sequence; layer 3: the flat wire from the tail end of the layer 2 is wound according to the same winding mode as the layer 2; layer 4: the flat wires from the tail end of the 3 rd layer are wound by alternately staggering 3N-2 slots and 3N+2 slots one by one according to the sequence; layer 5: the flat wire from the end of the 4 th layer is wound according to the same winding mode as the 4 th layer; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 1 st layer;
the third winding mode comprises the following steps: layer 1: the flat wire is wound by alternately staggering 3N-2 slots and 3N+2 slots from the starting point of the 1 st layer one by one in sequence, wherein the third starting point is 1 slot larger than the second starting point; layer 2: the flat wire from the tail end of the 1 st layer is wound according to the same winding mode as the 1 st layer; layer 3: winding the flat wire from the tail end of the layer 2 at intervals of 3N slots in sequence; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 3 rd layer; layer 5: the flat wires from the tail end of the 4 th layer are wound by alternately staggering 3N+2 slots and 3N-2 slots one by one according to the sequence; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 5 th layer;
or, the first winding mode includes: layer 1: the flat wire is wound by alternately staggering 3N+2 slots and 3N-2 slots one by one from the first starting point of the 1 st layer according to the sequence; layer 2: winding the flat wire from the tail end of the 1 st layer at intervals of 3N slots in sequence; layer 3: the flat wires from the tail end of the layer 2 are wound by alternately staggering 3N-2 slots and 3N+2 slots one by one according to the sequence; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the 3 rd layer; layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 1 st layer;
the second winding mode comprises the following steps: layer 1: winding the flat wire from a second starting point of the 1 st layer according to 3N slots at intervals in sequence, wherein the second starting point is 1 slot larger than the first starting point; layer 2: the flat wires from the tail end of the 1 st layer are wound by alternately staggering 3N+2 slots and 3N-2 slots one by one according to the sequence; layer 3: the flat wire from the tail end of the layer 2 is wound according to the same winding mode as the layer 2; layer 4: the flat wire from the end of the 3 rd layer is wound according to the same winding mode as the layer 2; layer 5: the flat wire from the tail end of the 4 th layer is wound according to the same winding mode as the layer 2; layer 6: the flat wire from the tail end of the 5 th layer is wound according to the same winding mode as the 1 st layer;
the third winding mode comprises the following steps: layer 1: the flat wire is wound by alternately staggering 3N-2 slots and 3N+2 slots from the starting point of the 1 st layer one by one in sequence, wherein the third starting point is 1 slot larger than the second starting point; layer 2: winding the winding wire from the tail end of the 1 st layer according to the same winding mode as the 1 st layer; layer 3: winding the winding wire from the tail end of the layer 2 at intervals of 3N slots in sequence; layer 4: winding the winding wire from the tail end of the 3 rd layer according to the same winding mode as the 3 rd layer; layer 5: winding the winding wire from the tail end of the 4 th layer according to the same winding mode as the 1 st layer; layer 6: the winding from the 5 th layer end is wound in the same manner as the 1 st layer.
2. The continuous wave wound armature winding of claim 1, wherein when 6 layers of 72 slots are wound with a flat wire of three parallel three branches, the number of poles is 8, and the number of branches is 3; defining xy as the y layer of the x slot, wherein x epsilon [1, 72], y epsilon [ a, e ], and winding connection routes from U+ to U-in the first branch of the U-phase winding are as follows: 1a, 12a, 19a, 30a, 37a, 48a, 55a, 66a, 2b, 11b, 20b, 29b, 38b, 47b, 56b, 65b, 3c, 10c, 21c, 28c, 39c, 46c, 57c, 64c, 1d, 12d, 19d, 30d, 37d, 48d, 55d, 66d, 2e, 11e, 20e, 29e, 38e, 47e, 56e, 65e, 3f, 10f, 21f, 28f, 39f, 46f, 57f, 64f;
the winding connection route from U+ to U-in the second branch of the U-phase winding is as follows: 2a, 11a, 20a, 29a, 38a, 47a, 56a, 65a, 1b, 12b, 19b, 30b, 37b, 48b, 55b, 66b, 1c, 12c, 19c, 30c, 37c, 48c, 55c, 66c, 3d, 10d, 21d, 28d, 39d, 46d, 57d, 64d, 3e, 10e, 21e, 28e, 39e, 46e, 57e, 64e, 2f, 11f, 20f, 29f, 38f, 47f, 56f, 65f;
the winding connection route from U+ to U-in the third branch of the U-phase winding is as follows: 3a, 10a, 21a, 28a, 39a, 46a, 57a, 64a, 3b, 10b, 21b, 28b, 39b, 46b, 57b, 64b, 2c, 11c, 20c, 29c, 38c, 47c, 56c, 65c, 2d, 11d, 20d, 29d, 38d, 47d, 56d, 65d, 1e, 12e, 19e, 30e, 37e, 48e, 55e, 66e, 1f, 12f, 19f, 30f, 37f, 48f, 55f, 66f.
3. The continuous wave wound armature winding of claim 1, wherein when 6 layers of 72 slots are wound with a flat wire of three parallel three branches, the number of poles is 3, and the number of branches is 3; defining xy as the y layer of the x slot, wherein x epsilon [1, 72], y epsilon [ a, e ], and winding connection routes from U+ to U-in the first branch of the U-phase winding are as follows: 1a, 12a, 19a, 30a, 37a, 48a, 55a, 66a, 2b, 11b, 20b, 29b, 38b, 47b, 56b, 65b, 3c, 10c, 21c, 28c, 39c, 46c, 57c, 64c, 3d, 10d, 21d, 28d, 39d, 46d, 57d, 64d, 2e, 11e, 20e, 29e, 38e, 47e, 56e, 65e, 1f, 12f, 19f, 30f, 37f, 48f, 55f, 66f;
the winding connection route from U+ to U-in the second branch of the U-phase winding is as follows: 2a, 11a, 20a, 29a, 38a, 47a, 56a, 65a, 1b, 12b, 19b, 30b, 37b, 48b, 55b, 66b, 1c, 12c, 19c, 30c, 37c, 48c, 55c, 66c, 1d, 12d, 19d, 30d, 37d, 48d, 55d, 66d, 1e, 12e, 19e, 30e, 37e, 48e, 55e, 66e, 2f, 11f, 20f, 29f, 38f, 47f, 56f, 65f;
the winding connection route from U+ to U-in the third branch of the U-phase winding is as follows: 3a, 10a, 21a, 28a, 39a, 46a, 57a, 64a, 3b, 10b, 21b, 28b, 39b, 46b, 57b, 64b, 2c, 11c, 20c, 29c, 38c, 47c, 56c, 65c, 2d, 11d, 20d, 29d, 38d, 47d, 56d, 65d, 3e, 10e, 21e, 28e, 39e, 46e, 57e, 64e, 3f, 10f, 21f, 28f, 39f, 46f, 57f, 64f.
4. An electric machine, comprising: a rotor and a continuous wave wound armature winding as claimed in any one of claims 1 to 3; the rotor is rotatable about an armature winding relative to the continuous wave.
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