CN212278005U - Flat copper wire winding structure with 3 slots per pole per phase and motor - Google Patents
Flat copper wire winding structure with 3 slots per pole per phase and motor Download PDFInfo
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- CN212278005U CN212278005U CN202020776769.3U CN202020776769U CN212278005U CN 212278005 U CN212278005 U CN 212278005U CN 202020776769 U CN202020776769 U CN 202020776769U CN 212278005 U CN212278005 U CN 212278005U
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Abstract
A flat copper wire winding structure with 3 slots per pole per phase and a motor belong to the technical field of motors. The winding structure comprises three-phase winding structures distributed in at least 4 winding layers, and each phase of winding structure consists of 3 winding branches; the starting ends of the 3 winding branches are distributed in three adjacent continuous stator slots, and the terminal ends of the 3 winding branches are distributed in three adjacent continuous stator slots; two sides of each winding element of the winding branch are alternately distributed in the odd winding layers and the even winding layers. The motor comprises the winding structure. The utility model discloses be convenient for realize automatic plug wire, be convenient for connect, simplify the connecting wire technology, conveniently connect each winding branch road with the help of public female arranging, can satisfy the balance of each winding branch road.
Description
Technical Field
The utility model belongs to the technical field of the motor, especially, relate to a flat type copper wire winding structure and motor that every utmost point every looks slot number is 3.
Background
In the long run, miniaturization and high speed are the main development trends of new energy automobile motors, and miniaturization necessarily requires that the power density of the motors is greatly improved. The flat copper wire winding can improve the slot filling rate of the motor, so that the resistance value is reduced, the thermal resistance between the winding and the iron core is reduced, and the power density of the motor is improved.
The difference of the flat copper wire motor and the round copper wire motor lies in the cross-sectional area and the forming mode of the copper wire, and the flat wire is beneficial to the improvement of the full rate of the motor slot and improves the power and the torque density of the motor. Meanwhile, the flat copper wire has the limitation that the number of turns of each phase of winding in series of the motor is selectable to be small, because the number of turns of each phase of winding in series can only be adjusted by the number of parallel branches after the number of slots of the flat copper wire motor and the number of conductors of each slot are determined. In order to satisfy the balance of each branch, the number of parallel branches is also limited by the number of slots, the number of pole pairs and the conductor per slot. In addition, in order to improve the vibration noise of the motor, the number of slots per pole and phase of the motor is desirably made as large as possible, but the number of branches of the winding is also required to be increased to match the better output performance of the motor.
The invention patent application CN201911000279.2 discloses a 72-slot 6-layer flat copper wire hybrid winding structure and a motor applying the winding structure, and specifically discloses that the winding structure comprises a three-phase hybrid winding structure distributed in at least 6 winding layers, each phase of the hybrid winding structure is composed of 2 winding branches, each winding branch is composed of a plurality of winding elements uniformly distributed in each winding layer, and adjacent winding elements are formed and alternately distributed in the same slot and adjacent slots. The winding structure is only suitable for winding 72 stator slots, and each phase of winding branches is 2.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that prior art exists, proposed every utmost point every looks slot number be 3 flat copper wire winding structure and motor, to prior art's not enough, conveniently with the help of each winding branch road of public female row connection, be convenient for realize automatic plug wire, be convenient for connect, simplify the connecting wire technology.
The utility model discloses a can realize through following technical scheme:
the utility model relates to a flat copper wire winding structure with 3 slots per pole per phase, which comprises a three-phase winding structure distributed in at least 4 winding layers, wherein each phase winding structure is composed of 3 winding branches; the starting ends of the 3 winding branches are distributed in three adjacent continuous stator slots, and the terminal ends of the 3 winding branches are distributed in three adjacent continuous stator slots; two sides of each winding element of the winding branch are alternately distributed in the odd winding layers and the even winding layers.
The utility model can wind flat copper wire winding based on the structure that the number of slots of each phase of each pole is 3, such as 72 stator slots, 8 pairs of poles; or 144 stator slots, 16 antipoles. In the technical scheme, two sides of the winding element of each winding branch are alternately distributed in the odd and even layers of winding layers, and the starting end or the terminal end of each winding branch is distributed in the adjacent continuous stator slot, so that the balance of each branch winding can be met.
Preferably, the starting ends of the 3 winding branches are connected in parallel, and the terminal ends of the 3 winding branches are connected in parallel; the starting ends of the 3 winding branches are connected with the terminals of the 3 winding branches through a common bus bar.
Preferably, the winding elements in the winding branches are distributed in 2N winding layers, wherein N is more than or equal to 2.
Preferably, the leading end of the winding branch is located in the innermost winding layer or the outermost winding layer.
Preferably, the outlet end of the winding branch is a U-shaped wire.
Preferably, the leading-out wire ends of the winding branches comprise 4 pitches, and the pitches are 8, 9, 10 and 11 respectively.
Preferably, the pitches of the welding ends of the winding branches are equal.
Preferably, the winding elements in each winding branch are distributed in the odd winding layer and the even winding layer of 1 stator slot under the first N pole, and are distributed in the odd winding layer and the even winding layer of the adjacent stator slot or the 1 stator slot apart under the first S pole, and the winding branches are circularly formed according to the rule.
The motor comprises the flat copper wire winding structure with the number of slots per phase of each pole being 3.
The utility model discloses following beneficial effect has:
the utility model relates to a flat copper wire winding structure and a motor with 3 slots per pole per phase, which can satisfy the balance of each branch and is suitable for the structure with 3 slots per pole per phase; the automatic wiring is convenient to realize, and each winding branch is convenient to connect with the help of a common bus bar.
Drawings
Fig. 1 is an expanded schematic view of a flat copper wire winding structure of 3 slots per phase per pole according to the present invention, in which 72 slots and 6 layers of winding layers are taken as an example;
FIG. 2 is a schematic diagram of the connection of the 1 st winding branch of the U-phase of the flat copper wire in FIG. 1;
FIG. 3 is a schematic diagram of the connection of the 2 nd winding branch of the U-phase of the flat copper wire in FIG. 1;
fig. 4 is a schematic diagram of the connection of the 3 rd winding branch of the U-phase flat copper wire in fig. 1.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
The utility model relates to a flat copper wire winding structure that every utmost point every looks slot number is 3, including the three-phase winding structure who distributes in 4 at least layers of winding layers, every looks winding structure comprises 3 winding branch roads. The starting ends of the 3 winding branches are distributed in three adjacent continuous stator slots, and the terminal ends of the 3 winding branches are distributed in three adjacent continuous stator slots. Two sides of each winding element of the winding branch are alternately distributed in the odd winding layers and the even winding layers. The starting ends of the 3 winding branches are connected in parallel, and the terminal ends of the 3 winding branches are connected in parallel. The starting ends of the 3 winding branches are connected with the terminals of the 3 winding branches through a common bus bar. The winding elements in the winding branch are distributed in 2N layers of winding layers, and N is larger than or equal to 2, and can be distributed in 4 layers, 6 layers, 8 layers and other winding layers.
Each winding branch comprises an outgoing line end and a welding end. The leading-out wire end of the winding branch is a U-shaped wire which comprises 4 pitches which are respectively 8, 9, 10 and 11. And the leading-out wire end of the winding branch is positioned on the innermost winding layer or the outermost winding layer. When the outgoing line end is positioned on the outermost winding layer, each winding branch is conveniently connected by means of a common bus bar. In addition, the pitches of the welding ends of the winding branches are equal, so that automatic wire plugging is convenient to realize.
During winding, the winding elements in each winding branch are distributed in all odd winding layers and even winding layers of 1 stator slot under the first N pole, and are distributed in all odd winding layers and even winding layers of adjacent stator slots or every 1 stator slot under the first S pole, and a winding branch is formed according to the rule in a circulating mode. Or the winding elements in each winding branch are distributed in the odd winding layer or the even winding layer of 1 stator slot under the first N pole, and are distributed in the adjacent stator slot or the odd winding layer or the even winding layer separated by 1 stator slot under the first S pole, and the winding branches are circularly formed according to the rule.
Fig. 1-4 show examples of three-phase winding structures distributed in 72 slots, 6 layers, 8 pole windings. Each phase winding structure comprises 3 winding branches, and each winding branch is formed by connecting a plurality of winding elements. The starting ends of the 3 legs of the U-phase, V-phase, W-phase are each sequentially arranged in 3 adjacent stator slots, and the terminal ends (i.e., X, Y, Z) of the 3 legs of the U-phase, V-phase, W-phase are each sequentially arranged in 3 adjacent stator slots. Taking U-phase as an example, 3 branches of U-phase include 3 starting ends and 3 terminal ends, 3 starting ends U1, U2 and U3 are sequentially arranged in adjacent stator slots, 3 terminal ends X1, X2 and X3 are sequentially arranged in adjacent stator slots, and the same holds true for V-phase and W-phase. U1, U2 and U3 are connected in parallel, X1, X2 and X3 are connected in parallel, and finally the connection is carried out through a common busbar to form a U-phase winding. In order to connect all the branch circuits by means of the common bus bar, the star point line end and the outgoing line end of each winding branch circuit are arranged on the outermost winding layer.
Take U-phase stacked winding as an example (V, W phase is similar to U phase and will not be described here):
each winding branch of the U-phase is formed by 24 winding elements connected in series. The 1 st winding branch is wound from the position of U1 in FIG. 2 and finally output to the three-phase center point from the position of X1. The number of the groove through which the 1 st winding branch is connected in series is as follows: 1 (1), (2) → 1 (3) → 10 (4) → 1 (5) → 10 (6) → 19 (6) → 10 (5) → 19 (4) → 10 (3) → 19 (2) → 10 (1) → 20 (1) → 29 (2) → 20 (3) → 29 (4) → 20 (5) → 29 (6) → 38 (6) → 29 (29) → 38 (5) → 38 (4) → 29 (3) ((38) ((2) → 29 (1) → 38) ((1) → 66 (3) → 66 (66) → 66 (6) → 66) → 6) ((6) → 47) ((6) → 6) ()) (3) → 6) ((3) → 66) ((6) ()) (57) → 6) → 38 (1) ((3) → 66) ((3) → 66) ((6) ()) (3) → 6.
The 2 nd winding branch enters from the position of U2 in FIG. 3, and finally outputs the value of the three-phase center point from the position of X2. The number of the groove through which the 2 nd winding branch is connected in series is as follows: 2 (1), (11), (2) → 2 (3) → 11 (4) → 2 (5) → 11 (6) → 20 (6) → 11 (5) → 20 (4) → 11 (3) → 20 (2) → 11 (1) → 19 (1) → 28 (2) → 19 (3) → 28 (4) → 19 (5) → 28 (6) → 37 (6) → 28 (5) → 37 (4) → 28 (3) ((2) → 28 (1) → 39 (1) → 48) (2) → 39 (3) → 48) (65) → 65 (6) → 48 (6) → 48) ((5) → 5) ((6) ()) (6) → 6) ((6) → 6) (6) → 6) ((6) ()) (6) → 6) ((6) → 6) ((6) →) 6) ((6) ()) (6) → 39 (6).
The 3 rd winding branch enters from the position of U3 in FIG. 4, and finally outputs the value of the three-phase center point from the position of X3. The number of the groove through which the 3 rd winding branch is connected in series is as follows: 3 (1), (2) → 3 (3) → 12 (4) → 3 (5) → 12 (6) → 21 (6) → 12 (5) → 21 (4) → 12 (3) → 21 (2) → 12 (1) → 21 (1) → 30 (2) → 21 (3) → 30 (4) → 21 (5) → 30 (6) → 39 (6) → 30 (5) → 39 (4) → 64 (30) (3) ((39) ((2) → 30 (1) → 37 (1) → 46) (2) → 46 (4) → 37 (5) → 64) ((6) → 64) ((1) → 64) ((6) → 64) ((1) ((6)) (64) → 64) ((1) → 64) ((1) ((4) → 64) ((1) ()) (64) → 64).
Here, 13 (2) indicates the conductor position of 2 winding layers in the 13 slots. The corresponding starting slot and ending slot numbers of the 3 winding branches are distributed as follows: u1 for 1 (1), X1 for 66 (1); u2 for 2 (1), X2 for 65 (1); u3 for 3 (1), X3 for 64 (1); u1, U2 and U3 are connected in parallel, X1, X2 and X3 are connected in parallel, and finally the connection is carried out through a common busbar, so that the finished U-phase winding is formed.
The remaining V-and W-phase windings are symmetrically and uniformly distributed on the circumference, which is not illustrated here.
The utility model also provides a motor, it includes above-mentioned winding structure. The motor is used for new energy automobiles, the power density of the automobile motor is high, the size is small, and the miniaturization of the automobiles is easy to realize.
It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The purpose of the utility model is completely and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.
Claims (9)
1. The flat copper wire winding structure with the number of slots of each phase of each pole being 3 is characterized by comprising three-phase winding structures distributed in at least 4 layers of winding layers, wherein each phase of winding structure is formed by 3 winding branches; the starting ends of the 3 winding branches are distributed in three adjacent continuous stator slots, and the terminal ends of the 3 winding branches are distributed in three adjacent continuous stator slots; two sides of each winding element of the winding branch are alternately distributed in the odd winding layers and the even winding layers.
2. The structure of claim 1, wherein the starting ends of 3 winding branches are connected in parallel, and the terminal ends of 3 winding branches are connected in parallel; the starting ends of the 3 winding branches are connected with the terminals of the 3 winding branches through a common bus bar.
3. The flat copper wire winding structure with the number of slots per pole and phase being 3 according to claim 1, wherein the winding elements in the winding branches are distributed in 2N winding layers, N is more than or equal to 2.
4. The flat copper wire winding structure with the number of slots per pole and phase being 3 according to claim 1, wherein the outgoing line end of the winding branch is located at the innermost winding layer or the outermost winding layer.
5. The structure of claim 1, wherein the outlet end of the winding branch is a U-shaped wire.
6. The structure of claim 1, wherein the outgoing line ends of the winding branches comprise 4 pitches, and the pitches are 8, 9, 10 and 11 respectively.
7. The structure of claim 1, wherein the pitch of the welding ends of the winding legs is equal.
8. The structure of claim 1, wherein the winding elements in each winding branch are distributed in odd and even winding layers of 1 stator slot under the first N pole, and are distributed in odd and even winding layers of adjacent stator slots or 1 stator slot apart under the first S pole, and are cycled according to the law to form a winding branch.
9. An electrical machine comprising a 3 per pole per phase slot flat copper wire winding configuration according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020776769.3U CN212278005U (en) | 2020-05-12 | 2020-05-12 | Flat copper wire winding structure with 3 slots per pole per phase and motor |
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| CN202020776769.3U CN212278005U (en) | 2020-05-12 | 2020-05-12 | Flat copper wire winding structure with 3 slots per pole per phase and motor |
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| CN212278005U true CN212278005U (en) | 2021-01-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678990A (en) * | 2020-12-24 | 2022-06-28 | 上海汽车集团股份有限公司 | Stator winding connection method, stator and motor |
| JP2022121413A (en) * | 2021-02-08 | 2022-08-19 | ジン－ジン エレクトリック テクノロジーズ カンパニー リミテッド | stator assembly and motor |
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2020
- 2020-05-12 CN CN202020776769.3U patent/CN212278005U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678990A (en) * | 2020-12-24 | 2022-06-28 | 上海汽车集团股份有限公司 | Stator winding connection method, stator and motor |
| CN114678990B (en) * | 2020-12-24 | 2024-01-05 | 上海汽车集团股份有限公司 | Stator winding connection method, stator and motor |
| JP2022121413A (en) * | 2021-02-08 | 2022-08-19 | ジン－ジン エレクトリック テクノロジーズ カンパニー リミテッド | stator assembly and motor |
| JP7281568B2 (en) | 2021-02-08 | 2023-05-25 | ジン－ジン エレクトリック テクノロジーズ カンパニー リミテッド | stator assembly and motor |
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