CN212649211U - Flat wire conductor stator winding of two branches and motor - Google Patents
Flat wire conductor stator winding of two branches and motor Download PDFInfo
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- CN212649211U CN212649211U CN202021388654.3U CN202021388654U CN212649211U CN 212649211 U CN212649211 U CN 212649211U CN 202021388654 U CN202021388654 U CN 202021388654U CN 212649211 U CN212649211 U CN 212649211U
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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
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
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- Windings For Motors And Generators (AREA)
Abstract
The utility model provides a flat wire conductor stator winding and motor of two branches, wherein include the flat wire conductor stator winding of two branches, including stator body, stator slot, flat wire conductor, tip conductor, wherein: the z stator slots are arranged on the stator body; 2n layers of flat wire conductors are arranged in the stator slots; 2n layers of flat wire conductors positioned in different stator slots are connected with each other by end conductors to form a winding; every n layers of flat wire conductors are connected by end conductors to form a branch. The utility model provides a flat wire conductor stator winding of two branches, which solves the problem of unbalanced branch in the motor of the existing flat wire winding mode through the structure of a stator body, a stator slot, a flat wire conductor and an end conductor; the two branch circuits formed by using a flat wire winding mode are equal in resistance, high in winding coefficient, low in winding harmonic content, full in material utilization, small in end part and wide in market application value.
Description
Technical Field
The utility model relates to the technical field of electric machines, in particular to flat wire conductor stator winding and motor of two branches.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law.
In traditional motor manufacturing, mostly adopt the most traditional round wire winding mode because of it can satisfy multiple wire winding design needs, but this kind of wire winding mode groove fullness rate is not high, and the tip is great, and material utilization rate hangs down to become the bottleneck of round wire winding development always. In order to solve the above problem, a motor using a flat wire winding method has been developed, and a conventional motor using a flat wire winding method, such as a motor stator and a motor disclosed in chinese patent publication No. CN206164230U, published as 2017.05.10, includes: the stator core is provided with a plurality of stator teeth which are arranged along the circumferential direction of the stator core at intervals, and the stator slot is defined between every two adjacent stator teeth; the motor stator adopts a flat wire winding, and a plurality of layers of flat wire conductors are arranged in each stator slot, so that the slot filling rate of a flat wire winding mode is high, the efficiency and the power density of the motor are greatly improved, and meanwhile, the heat dissipation level of the flat wire motor is higher than that of a round wire motor due to the close combination of the flat wire conductors.
However, the above patent does not solve the problem of the unbalanced branch caused by the flat wire winding method.
SUMMERY OF THE UTILITY MODEL
For the unbalanced problem of branch road in the motor of mentioning current use flat wire winding mode among the solution above-mentioned background art, the utility model provides a pair of flat wire conductor stator winding of two branch roads, including stator body, stator slot, flat wire conductor, end conductor, wherein:
the z stator slots are arranged on the stator body; 2n layers of flat wire conductors are arranged in the stator slots; 2n layers of flat wire conductors positioned in different stator slots are connected with each other by end conductors to form a winding; every n layers of flat wire conductors are connected by end conductors to form a branch.
Furthermore, the wire inlet ends of the windings are located on the innermost layer close to the inner diameter of the stator body, and the wire outlet ends are located on the outermost layer close to the outer diameter of the stator body.
Furthermore, the flat wire conductors at the two ends of the winding are two adjacent layers.
Further, the winding is formed by wave winding.
The utility model also provides a motor, according to as above arbitrary the flat wire conductor stator winding of two branches, including the rotor, wherein: the number of pole pairs of the rotor is p, and z/2p is an integer.
Further, the winding is a three-phase winding comprising two branches.
Further, each leg of each phase of the winding occupies 6p slots in space.
Furthermore, the positions of the n layers of flat wire conductors contained in each branch are uniformly distributed.
Further, the end conductor spans are z/2p, z/2p +1, z/2p-1, z/2p + 2.
Further, the winding factor is sin [ (z/2p-1)/z/2p ]. times sin (1/12. times.360 °)/(z/6p)/sin (360. times.p/z/2).
The utility model provides a flat wire conductor stator winding of two branches, which solves the problem of unbalanced branch in the motor of the existing flat wire winding mode through the structure of a stator body, a stator slot, a flat wire conductor and an end conductor; the purpose that two branch resistances formed by using a flat wire winding mode are equal is achieved.
The utility model also provides an adopt the flat wire conductor stator winding's of above-mentioned two branch roads motor, not only can great efficiency and the power density who promotes the motor, still improved the heat dissipation level of motor simultaneously and can not have the unbalanced problem of each branch road in the motor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a stator punching sheet and a flat wire conductor provided by the present invention;
fig. 2 is a schematic structural diagram of a winding part according to the present invention;
fig. 3 is a schematic diagram of the number of the flat wire conductor in the development diagram of the 01-slot winding provided by the present invention;
fig. 4 is a schematic connection diagram of a branch of phase a provided by the present invention;
fig. 5 is a schematic connection diagram of all the branches of phase a provided by the present invention;
fig. 6 is a schematic diagram of the three-phase winding according to the present invention.
Reference numerals:
100 stator body 110 stator slot 120 flat wire conductor
130 end conductor
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Moreover, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "couple" or "couples" and the like are not restricted to physical or mechanical connections, but may include electrical connections, optical connections, and the like, whether direct or indirect.
In the present invention, the parameter z represents the number of stator slots; the parameter n represents the number of layers of the flat wire conductors on each branch circuit; the parameter p is the number of pole pairs of the rotor.
The utility model provides a flat wire conductor stator winding of two branches, including stator body 100, stator slot 110, flat wire conductor 120, end conductor 130, wherein: z stator slots 110 are provided on the stator body 100; 2n layers of flat wire conductors 120 are arranged in the stator slots 110; the 2n layers of flat wire conductors 120 located in different stator slots 110 are connected to each other by end conductors 130 to form a winding; each n layers of flat wire conductors 120 are connected by end conductors 130 to form a branch.
In specific implementation, as shown in fig. 1, 2 and 3, the stator includes a stator body 100, a stator slot 110, a flat wire conductor 120, and an end conductor 130, wherein: z stator slots 110 are provided on the stator body 100; the z stator slots 110 begin with sequence numbers 01, 02, 03 … through z counterclockwise from the slot at the far right of the horizontal.
2n layers of flat wire conductors 120 are arranged in the stator slots 110; the 2n layers of flat wire conductors 120 located in different stator slots 110 are connected to each other by end conductors 130 to form a winding; each n layers of flat wire conductors 120 are connected by end conductors 130 to form a branch; the flat wire conductor 120 is a, b, c, d, e, f, … in the order from the stator inner diameter to the stator outer diameter.
Preferably, the wire inlet ends of the windings are all located at the innermost layer close to the inner diameter of the stator body 100, and the wire outlet ends are located at the outermost layer close to the outer diameter of the stator body 100.
Preferably, the flat wire conductors 120 at both ends of the winding are two adjacent layers.
Preferably, the winding is wave wound.
In specific implementation, the winding adopts wave winding; the winding method can reduce the material consumption.
The utility model also provides a motor, according to as above arbitrary the flat wire conductor stator winding of two branches, including the rotor, wherein:
the number of pole pairs of the rotor is p, and z/2p is an integer.
Preferably, the winding is a three-phase winding comprising two branches.
Preferably, each leg of each phase of the winding occupies 6p slots in space.
In specific implementation, each branch of each phase of the winding occupies 6p slot positions in space, so that the winding is equivalent to a lap winding short-distance winding method, the harmonic content of the winding is less, and the winding coefficient is high.
Preferably, the positions of the n layers of flat wire conductors 120 included in each branch are evenly distributed.
In specific implementation, the positions of the n layers of flat line conductors 120 included in each branch are uniformly distributed, so as to ensure the balance of each branch.
Preferably, the end conductors 130 span z/2p, z/2p +1, z/2p-1, z/2p + 2.
Preferably, the winding factor is sin [ (z/2p-1)/z/2p ]. times sin (1/12. times.360 °)/(z/6p)/sin (360. times.p/z/2).
The utility model provides a specific embodiment does: taking n 6, z 48, p 4 as an example, as shown in fig. 4, the wire is fed from the 02-slot-a layer, the end conductor 130 spans z/2p-1 5, the 02-slot-a layer conductor is connected to the 07-slot-b layer conductor, the end conductor 130 spans z/2p +1 is changed to 7, the 07-slot-b layer conductor is connected to the 14-slot-a layer conductor, a span-changing connection is completed, then the 5-and 7-span connection is repeated, the 14-slot-a layer conductor is connected to the 19-slot-b layer conductor, the 19-slot-b layer conductor is connected to the 26-slot-a layer conductor, the 26-slot-a layer conductor is connected to the 31-slot-b layer conductor, the 31-slot-b layer conductor is connected to the 38-slot-a layer conductor, the 38-slot-a layer conductor is connected to the 43-slot-b layer conductor, the winding is wound once along the stator, the winding returns to the 02-slot, in order to enable the winding to continue and form a short-distance effect, the 5, 7 span connection is then repeated, connecting the 01 slot a layer conductor to the 06 slot b layer conductor, the 06 slot b layer conductor to the 13 slot a layer conductor, the 13 slot a layer conductor to the 18 slot b layer conductor, the 18 slot b layer conductor to the 25 slot a layer conductor, the 25 slot a layer conductor to the 30 slot b layer conductor, the 30 slot b layer conductor to the 37 slot a layer conductor, and the 37 slot a layer conductor to the 42 slot b layer conductor, where the winding has been wound two revolutions along the stator, traversing the a, b layers of the flat wire conductor 120 of the stator slot 110, and the winding will return to the 01 slot. In order to traverse the winding through the c, d layers of the flat wire conductor 120 of the stator slot 110, the winding will be connected to the 02 slot, the 42 slot b layer conductor to the 02 slot c layer conductor, the 02 slot c layer conductor to the 07 slot d layer conductor, the 07 slot d layer conductor to the 14 slot c layer conductor, the 14 slot c layer conductor to the 19 slot d layer conductor, the 19 slot d layer conductor to the 26 slot c layer conductor, the 26 slot c layer conductor to the 31 slot d layer conductor, the 31 slot d layer conductor to the 38 slot c layer conductor, the 38 slot c layer conductor to the 43 slot d layer conductor, the winding having been wound three times around the stator, the winding will return to the 02 slot, the 43 slot d layer conductor to the 01 slot c layer conductor, and then repeat the 5, 7 span connection pattern, the 01 slot c layer conductor to the 06 slot d layer conductor, the 06 slot d layer conductor to the 13 slot c layer conductor, connecting 13 slot c layer conductors to 18 slot d layer conductors, 18 slot d layer conductors to 25 slot c layer conductors, 25 slot c layer conductors to 30 slot d layer conductors, 30 slot d layer conductors to 37 slot c layer conductors, and 37 slot c layer conductors to 42 slot d layer conductors, where the winding has been wound around the stator, traversing the a, b, c, d layers of the flat wire conductor 120 of the stator slot 110, the winding will return to 01 slot, and the winding will connect to 02 slot in order to be able to traverse the winding through the e, f layers of the flat wire conductor 120 of the stator slot 110. Connecting 42 slot d layer conductors to 02 slot e layer conductors, connecting 02 slot e layer conductors to 07 slot f layer conductors, connecting 07 slot f layer conductors to 14 slot e layer conductors, connecting 14 slot e layer conductors to 19 slot f layer conductors, connecting 19 slot f layer conductors to 26 slot e layer conductors, connecting 26 slot e layer conductors to 31 slot f layer conductors, connecting 31 slot f layer conductors to 38 slot e layer conductors, connecting 38 slot e layer conductors to 43 slot f layer conductors, the winding having been wound five times along the stator, the winding will return to the slot 02, connecting 43 slot f layer conductors to 01 slot e layer conductors, and then repeating the 5, 7 span connection pattern, connecting 01 slot e layer conductors to 06 slot f layer conductors, 06 slot f layer conductors to 13 slot e layer conductors, connecting 13 slot e layer conductors to 18 slot f layer conductors, 18 slot f layer conductors to 25 slot e layer conductors, connecting 25 slot e layer conductors to 30 slot f layer conductors, 30 slot f layer conductors to 37 slot e layer conductors, and connecting 37 slot e layer conductors to 42 slot f layer conductors, wherein the winding has been wound six times along the stator, the a, b, c, d, e, f layers, 42 slot f layers of the stator slot 110 flat wire conductors 120 are outlet terminals, and the 02 slot a layer is inlet terminals, wherein the traversed stator slot 110 flat wire conductors 120 and the end conductors 130 form a branch of phase a.
The winding mode of the other branch of the phase a is shown in fig. 5, the inlet end of the other branch of the phase a is a layer a with 08 slots, and the outlet end is a layer f with 48 slots. The two branches are connected in parallel to form an A-phase winding.
The winding mode of the two branches of the phase B is shown in FIG. 6, the inlet ends of the two branches of the phase B are respectively a layer a with 06 slots and a layer a with 12 slots, the outlet ends are respectively a layer f with 46 slots and a layer f with 04 slots; the winding principle of the two branch lines of the phase C is similar to that of the phase A, the inlet ends of the two branch lines of the phase C are respectively a layer a with 10 grooves and a layer a with 16 grooves, the outlet ends of the two branch lines of the phase C are respectively a layer f with 02 grooves and a layer f with 08 grooves, and the winding principle of the phase B and the phase C is similar to that of the phase A, and is not repeated.
Although terms such as stator body, stator slots, flat wire conductors, end conductors, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A two-branch flat wire conductor stator winding, comprising a stator body (100), stator slots (110), flat wire conductors (120), end conductors (130), wherein:
z of said stator slots (110) are provided on said stator body (100); 2n layers of flat wire conductors (120) are arranged in the stator slots (110); the 2n layers of flat wire conductors (120) positioned in different stator slots (110) are connected with each other by end conductors (130) to form a winding; each n layers of flat wire conductors (120) are connected by an end conductor (130) to form a branch; the wire inlet ends of the windings are located on the innermost layer close to the inner diameter of the stator body (100), and the wire outlet ends of the windings are located on the outermost layer close to the outer diameter of the stator body (100).
2. The two-limb flat wire conductor stator winding of claim 1, wherein: the flat wire conductors (120) at the two ends of the winding are two adjacent layers.
3. The two-limb flat wire conductor stator winding of claim 1, wherein: the winding adopts wave winding.
4. An electrical machine, a two branch flat wire conductor stator winding according to any of claims 1-3, comprising a rotor, wherein:
the number of pole pairs of the rotor is p, and z/2p is an integer.
5. The electric machine of claim 4, wherein: the winding is a three-phase winding comprising two branches.
6. The electric machine of claim 5, wherein: each leg of each phase of the winding occupies 6p slots in space.
7. The electric machine of claim 5, wherein: the positions of the n layers of flat wire conductors (120) contained in each branch are uniformly distributed.
8. The electric machine of claim 4, wherein: the end conductors (130) span z/2p, z/2p +1, z/2p-1, z/2p + 2.
9. The electric machine of claim 4, wherein: the winding factor is sin [ (z/2p-1)/z/2p ]. sjn (1/12. times.360 °)/(z/6p)/sin (360. times.p/z/2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020957869 | 2020-05-29 | ||
| CN2020209578696 | 2020-05-29 |
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| CN212649211U true CN212649211U (en) | 2021-03-02 |
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| CN202010679580.7A Pending CN111917211A (en) | 2020-05-29 | 2020-07-15 | Flat wire conductor stator winding of two branches and motor |
| CN202021388654.3U Active CN212649211U (en) | 2020-05-29 | 2020-07-15 | Flat wire conductor stator winding of two branches and motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917211A (en) * | 2020-05-29 | 2020-11-10 | 厦门势拓御能科技有限公司 | Flat wire conductor stator winding of two branches and motor |
| CN113422453A (en) * | 2021-05-14 | 2021-09-21 | 华为技术有限公司 | Six-phase flat wire wave winding structure, six-phase motor, power assembly and vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115694022A (en) * | 2021-07-23 | 2023-02-03 | 蔚然（南京）动力科技有限公司 | Flat wire wave winding and multi-phase motor |
| CN114552810B (en) * | 2022-01-21 | 2023-08-01 | 浙江零跑科技股份有限公司 | Stator assembly, motor with same and vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206164230U (en) * | 2016-10-31 | 2017-05-10 | 长城汽车股份有限公司 | Motor stator and motor |
| CN208849571U (en) * | 2018-09-18 | 2019-05-10 | 华域汽车电动系统有限公司 | 48 8 layers of slot flat type copper wire current balance type winding |
| CN110971043A (en) * | 2018-09-29 | 2020-04-07 | 王丽 | Six-layer flat copper wire winding structure |
| CN110086279A (en) * | 2019-05-24 | 2019-08-02 | 浩夫尔动力总成（上海）有限公司 | A kind of flat type copper wire driving motor armature winding structure that multilayer is equidistant |
| CN111917211A (en) * | 2020-05-29 | 2020-11-10 | 厦门势拓御能科技有限公司 | Flat wire conductor stator winding of two branches and motor |
-
2020
- 2020-07-15 CN CN202010679580.7A patent/CN111917211A/en active Pending
- 2020-07-15 CN CN202021388654.3U patent/CN212649211U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917211A (en) * | 2020-05-29 | 2020-11-10 | 厦门势拓御能科技有限公司 | Flat wire conductor stator winding of two branches and motor |
| CN113422453A (en) * | 2021-05-14 | 2021-09-21 | 华为技术有限公司 | Six-phase flat wire wave winding structure, six-phase motor, power assembly and vehicle |
| CN113422453B (en) * | 2021-05-14 | 2022-10-28 | 华为数字能源技术有限公司 | Six-phase flat wire wave winding structure, six-phase motor, power assembly and vehicle |
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| CN111917211A (en) | 2020-11-10 |
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