CN220492730U - Stator structure, motor and turbomachine - Google Patents
Stator structure, motor and turbomachine Download PDFInfo
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- CN220492730U CN220492730U CN202322124551.6U CN202322124551U CN220492730U CN 220492730 U CN220492730 U CN 220492730U CN 202322124551 U CN202322124551 U CN 202322124551U CN 220492730 U CN220492730 U CN 220492730U
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Abstract
The present disclosure proposes a stator structure, a motor and a turbomachine, wherein the stator structure comprises: stator core, stator core includes: 3N stator slots uniformly distributed along the circumferential direction of the stator core, wherein stator teeth are formed between adjacent stator slots, and N is an integer greater than 1; and 3N coils, wherein the 3N coils are respectively wound on the 3N stator teeth, gaps are arranged between adjacent coils in the stator slots, and the nth coil and the n+3rd coil distributed along the circumferential direction of the stator core are connected in series, wherein N is an integer of 1 to 3N. In the stator structure, the motor and the turbomachine disclosed by the disclosure, the overlapping part between a plurality of coils at the end part of the stator core is effectively reduced, so that the axial length of the coils is further shortened, and the volume of the stator structure is reduced, thereby avoiding the problem that the volume of the turbomachine is overlarge and enabling the turbomachine to stably realize high-rotation-speed operation.
Description
Technical Field
The present disclosure relates to the field of stator technology, and in particular, to a stator structure, a motor, and a turbomachine.
Background
Turbomachinery (turbomachinery) is a dynamic fluid machine with blades, in which a rotor with blades is rotated at high speed, and in which a force interaction is generated between the blades and the fluid as the fluid flows through a passage between the blades, thereby achieving energy conversion.
Along with the appearance of bearings such as air bearing, electromagnetic bearing, provide the precondition that realizes high rotational speed operation for turbomachine, but the use of air bearing, electromagnetic bearing etc. is higher to the volume requirement of turbomachine, and the great volume of turbomachine is difficult to satisfy the demand of high rotational speed operation.
Disclosure of Invention
The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art.
To this end, it is an object of the present disclosure to provide a stator structure, an electric motor and a turbomachine.
To achieve the above object, a first aspect of the present disclosure provides a stator structure, including: a stator core, the stator core comprising: 3N stator slots uniformly distributed along the circumferential direction of the stator core, wherein stator teeth are formed between adjacent stator slots, and N is an integer greater than 1; the stator comprises 3N coils, wherein 3N coils are respectively wound on 3N stator teeth, gaps are arranged between adjacent coils in the stator slots, the nth coil and the (n+3) th coil distributed along the circumferential direction of the stator core are connected in series, and N is an integer of 1 to 3N.
Optionally, N is 2; the stator comprises 6 coils, a stator core and a stator, wherein the 6 coils are sequentially wound on the 6 stator teeth, the 1 st coil and the 4 th coil distributed along the circumference of the stator core are connected in series, the 2 nd coil and the 5 th coil distributed along the circumference of the stator core are connected in series, and the 3 rd coil and the 6 th coil distributed along the circumference of the stator core are connected in series.
Optionally, a first outgoing line is disposed on a side, away from the n+3th coil, of the nth coil distributed along the circumferential direction of the stator core, a second outgoing line is disposed on a side, close to the n, of the nth coil distributed along the circumferential direction of the stator core, and one side, close to the n+3th coil, of the nth coil distributed along the circumferential direction of the stator core and one side, away from the nth coil, of the nth coil are connected.
Optionally, the 3N stator teeth include: the stator comprises a first stator tooth and a fourth stator tooth, wherein the first stator tooth and the fourth stator tooth are distributed along the circumferential direction of the stator core, and two stator teeth are distributed between the first stator tooth and the fourth stator tooth; the 3N coils include: a first coil wound on the first stator tooth and a fourth coil wound on the fourth stator tooth, and the first coil and the fourth coil are connected in series.
Optionally, the 3N stator teeth further include: a second stator tooth and a fifth stator tooth, wherein the second stator tooth and the fifth stator tooth are distributed along the circumferential direction of the stator core, the second stator tooth is distributed between the first stator tooth and the fourth stator tooth, and the fifth stator tooth is distributed on one side of the fourth stator tooth away from the first stator tooth; the 3N coils further include: the second coil is wound on the second stator tooth, the fifth coil is wound on the fifth stator tooth, and the second coil and the fifth coil are connected in series.
Optionally, the 3N stator teeth further include: a third stator tooth and a sixth stator tooth, wherein the third stator tooth and the sixth stator tooth are distributed along the circumferential direction of the stator core, the third stator tooth is distributed between the second stator tooth and the fourth stator tooth, and the sixth stator tooth is distributed on one side of the fifth stator tooth away from the second stator tooth; the 3N coils include: the third coil is wound on the third stator tooth, the sixth coil is wound on the sixth stator tooth, and the third coil and the sixth coil are connected in series.
Optionally, the coil includes: the plurality of wires are sequentially connected in series and wound on the stator teeth.
A second aspect of the present disclosure provides an electric machine comprising: the stator structure provided by the first aspect of the present disclosure is sleeved on the rotor.
Optionally, when N in the stator structure is 2, the number of magnetic poles of the motor is 2.
A third aspect of the present disclosure provides a turbomachine, comprising: the motor as provided in the second aspect of the present disclosure.
The technical scheme provided by the disclosure can comprise the following beneficial effects:
because 3N coils are respectively wound on 3N stator teeth, each coil is only distributed on one corresponding stator tooth, and therefore the overlapping part between a plurality of coils at the end part of a stator core is effectively reduced, the axial length of the coils is further shortened, and the volume of a stator structure is reduced.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is an expanded schematic view of a stator structure according to a related embodiment;
fig. 2 is a left side view of a stator structure proposed by the related embodiment;
FIG. 3 is an expanded schematic view of a stator structure according to an embodiment of the present disclosure;
FIG. 4 is a top view of a stator structure according to an embodiment of the present disclosure;
FIG. 5 is a left side view of a stator structure according to an embodiment of the present disclosure;
as shown in the figure: s1, a stator core, S11, stator slots, S12 and stator teeth;
s2, a coil;
1. a stator core;
11. a stator groove;
12. stator teeth 121, first stator teeth 122, second stator teeth 123, third stator teeth 124, fourth stator teeth 125, fifth stator teeth 126, sixth stator teeth;
2. a coil, 21, a wire, 22, a first lead, 23, a second lead, 24, a first coil, 25, a second coil, 26, a third coil, 27, a fourth coil, 28, a fifth coil, 29, a sixth coil;
3. a gap.
Detailed Description
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the disclosure include all alternatives, modifications, and equivalents as may be included within the spirit and scope of the appended claims.
As shown in fig. 1 and 2, the related embodiment proposes a stator structure, which includes a stator core S1 and 6 coils S2, the stator core S1 includes 6 stator slots S11 uniformly distributed along the circumferential direction of the stator core S1, and stator teeth S12 are formed between adjacent stator slots S11, wherein the 6 coils S2 are divided into three groups, the three groups are uniformly distributed along the circumferential direction of the stator core S1, and each group includes two coils S2, and two coils S2 of each group are simultaneously wound on 3 stator teeth S12.
The winding mode makes a plurality of overlapping parts between a plurality of coils S2 at the end part of the stator core S1, and the overlapping parts lead to the overlong axial length of the coils S2, so that the volume of a stator structure is overlarge, and when the stator structure is applied to the turbomachine, the turbomachine is difficult to realize high-speed operation due to overlarge volume.
As shown in fig. 3, fig. 4 and fig. 5, the embodiment of the disclosure proposes a stator structure, including a stator core 1 and 3N coils 2, the stator core 1 includes 3N stator slots 11 uniformly distributed along the circumference of the stator core 1, stator teeth 12 are formed between adjacent stator slots 11, wherein N is an integer greater than 1, 3N coils 2 are respectively wound on 3N stator teeth 12, and gaps 3 are provided between adjacent coils 2 in the stator slots 11, and an nth coil 2 and an n+3rd coil 2 distributed along the circumference of the stator core 1 are connected in series, wherein N is an integer from 1 to 3N.
It can be understood that since the n-th coil 2 and the n+3-th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series, the n-th coil 2 and the n+3-th coil 2 form a single-phase winding structure on the stator core 1, and since two coils 2 are spaced between the n-th coil 2 and the n+3-th coil 2 connected in series with each other, a three-phase winding structure is formed on the stator core 1, whereby when the stator structure is applied to a turbomachine, the rotor rotation can be realized under the drive of three-phase electricity, or the output of three-phase electricity can be realized under the rotation of the rotor, thereby realizing the energy conversion.
Wherein, because 3N coils 2 are respectively wound on 3N stator teeth 12 for every coil 2 only distributes on a corresponding stator tooth 12, thereby effectively reduced the overlap portion at stator core 1 tip between a plurality of coils 2, and then shortened the axial length of coil 2, reduced stator structure's volume, from this, when stator structure was applied to turbomachine, avoided the too big problem of turbomachine volume, not only made turbomachine can stably realize high rotational speed operation, but also made turbomachine's layout space more nimble facility.
In addition, due to the fact that the axial length of the coil 2 is shortened, the size of the coil 2 is reduced, heat productivity of the coil 2 is further reduced, thermal resistance between the coil 2 and the stator teeth 12 is further reduced, and heat conduction efficiency of the stator core 1 to the coil 2 is further improved, therefore, the heat-generating problem of the stator structure is effectively controlled, and when the stator structure is applied to the turbomachine, stable high-rotation-speed operation of the turbomachine can be achieved.
It should be noted that, in the related embodiment, the overlapping portion of the end portion of the stator core 1 includes the overlapping portion caused by the series connection between the plurality of coils 2 and the overlapping portion caused by the series connection between the plurality of coils 2 across the plurality of stator teeth 12, and since the safety distance for insulation needs to be left between the coils 2 of each winding, more overlapping portions may cause the axial length of the coils 2 to be too long, whereas in the present embodiment, since there is no problem that the coils 2 cross the plurality of stator teeth 12 in a centralized winding manner, the overlapping portion of the end portion of the stator core 1 includes only the overlapping portion caused by the series connection between the plurality of coils 2, thereby making the axial length of the coils 2 smaller.
The stator core 1 is used for carrying the coil 2 and concentrating the magnetic field on the coil 2, and the specific type of the stator core 1 can be set according to actual needs, which is not limited, and the stator core 1 can include a tooth pressing plate, a positioning rib, a plurality of silicon steel sheets, and the like.
The coil 2 is used for generating a magnetic field under the action of a current or generating a current under the action of a magnetic field, and the specific type of the coil 2 can be set according to actual needs, which is not limited.
N is an integer greater than 1, N is an integer from 1 to 3N, specific values of N and N may be set according to actual needs, which is not limited, and N may be 2, 3, 4, 5, etc., and when N is 2, the numbers of the coil 2, the stator slot 11 and the stator teeth 12 are all 6, then N may be 1, 2, 3, 4, 5, 6, and when N is 3, the numbers of the coil 2, the stator slot 11 and the stator teeth 12 are all 9, then N may be 1, 2, 4, 5, 8, 9, etc.
For example, when n is 1, n+3 is 4, that is, the 1 st coil 2 and the 4 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series; when n is 2, n+3 is 5, namely, the 2 nd coil 2 and the 5 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series; when n is 3, n+3 is 6, namely, the 3 rd coil 2 and the 6 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series; when n is 4, n+3 is 7, that is, the 4 th coil 2 and the 7 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series, and since only 6 coils 2 are distributed along the circumferential direction of the stator core 1, the 7 th coil 2 is the 1 st coil 2, that is, the 4 th coil 2 and the 1 st coil 2 distributed along the circumferential direction of the stator core 1 are connected in series.
The n-th coil 2 and the n+3-th coil 2 may be distributed clockwise along the circumferential direction of the stator core 1, or the n-th coil 2 and the n+3-th coil 2 may be distributed counterclockwise along the circumferential direction of the stator core 1, which is not limited.
As shown in fig. 3 and 4, in some embodiments, N is 2, where 6 coils 2 are sequentially wound on 6 stator teeth 12, the 1 st coil 2 and the 4 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series, the 2 nd coil 2 and the 5 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series, and the 3 rd coil 2 and the 6 th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series.
It will be appreciated that when N is 2, the number of coils 2, stator slots 11 and stator teeth 12 is 6, and N is an integer from 1 to 6, so that when the 1 st coil 2 and the 4 th coil 2 are connected in series, a first phase winding on the stator core 1 is formed, when the 2 nd coil 2 and the 5 th coil 2 are connected in series, a second phase winding on the stator core 1 is formed, and when the 3 rd coil 2 and the 6 th coil 2 are connected in series, a third phase winding on the stator core 1 is formed, thereby realizing the arrangement of the three phase windings on the stator core 1, and when the stator structure is applied to a turbomachine, realizing the rotation of a rotor under the drive of three phase electricity, or the output of three phase electricity under the rotation of the rotor, thereby realizing the energy conversion.
The series connection of the nth coil 2 and the n+3rd coil 2 and the input and output of the single-phase winding after the series connection may be set according to actual needs, which is not limited.
As shown in fig. 3, in some embodiments, a first lead-out wire 22 is provided on a side of an n-th coil 2 distributed along the circumferential direction of the stator core 1 away from an n+3-th coil 2, a second lead-out wire 23 is provided on a side of an n+3-th coil 2 distributed along the circumferential direction of the stator core 1 near the n-th coil 2, and a side of an n+3-th coil 2 distributed along the circumferential direction of the stator core 1 near the n-th coil 2 is connected to a side of an n+3-th coil 2 away from the n-th coil 2.
It can be understood that, since the n-th coil 2 is connected at a side close to the n+3-th coil 2 and a side of the n+3-th coil 2 distant from the n-th coil 2, the n-th coil 2 and the n+3-th coil 2 can be connected in series, thereby forming a single-phase winding on the stator core 1, and since the n-th coil 2 is provided with the first outgoing line 22 at a side distant from the n+3-th coil 2 and the second outgoing line 23 at a side close to the n-th coil 2, the single-phase winding formed by the n-th coil 2 and the n+3-th coil 2 can be input and output electric energy using the first outgoing line 22 and the second outgoing line 23. Thereby, arrangement of the three-phase windings on the stator core 1 is achieved while facilitating input and output of the three-phase windings.
When n is 1, 2, 3, 4, 5, and 6 in this order, the series connection of the 1 st coil 2 and the 4 th coil 2, the series connection of the 2 nd coil 2 and the 5 th coil 2, and the series connection of the 3 rd coil 2 and the 6 th coil 2 are realized, and at the same time, three groups of the first lead wires 22 and the second lead wires 23 are formed, wherein the first lead wires 22 may be used as connection lines of three-phase neutral points, and the second lead wires 23 may also be used as connection lines of three-phase neutral points, which is not limited, and when the first lead wires 22 are used as connection lines of neutral points, the three first lead wires 22 are connected and then connected with the neutral points.
As shown in fig. 4, in some embodiments, the 3N stator teeth 12 include a first stator tooth 121 and a fourth stator tooth 124, the first stator tooth 121 and the fourth stator tooth 124 are distributed along the circumferential direction of the stator core 1, and two stator teeth 12 are distributed between the first stator tooth 121 and the fourth stator tooth 124; the 3N coils 2 include a first coil 24 wound on the first stator teeth 121 and a fourth coil 27 wound on the fourth stator teeth 124, and the first coil 24 and the fourth coil 27 are connected in series.
It can be appreciated that since the first stator teeth 121 and the fourth stator teeth 124 are distributed along the circumferential direction of the stator core 1 and two stator teeth 12 are distributed between the first stator teeth 121 and the fourth stator teeth 124, the first stator teeth 121 can be used as the 1 st stator teeth 12, the fourth stator teeth 124 can be used as the 4 th stator teeth 12, and at the same time, since the first coil 24 is wound on the first stator teeth 121 and the fourth coil 27 is wound on the fourth stator teeth 124, the first coil 24 can be used as the 1 st coil 2, and the fourth coil 27 can be used as the 4 th coil 2. Thus, when the first coil 24 and the fourth coil 27 are connected in series, the first phase winding is formed on the stator core 1.
As shown in fig. 4, in some embodiments, the 3N stator teeth 12 further include a second stator tooth 122 and a fifth stator tooth 125, the second stator tooth 122 and the fifth stator tooth 125 are distributed along the circumferential direction of the stator core 1, and the second stator tooth 122 is distributed between the first stator tooth 121 and the fourth stator tooth 124, and the fifth stator tooth 125 is distributed on a side of the fourth stator tooth 124 away from the first stator tooth 121; the 3N coils 2 further include a second coil 25 wound on the second stator teeth 122 and a fifth coil 28 wound on the fifth stator teeth 125, and the second coil 25 and the fifth coil 28 are connected in series.
It can be appreciated that since the second stator teeth 122 and the fifth stator teeth 125 are distributed along the circumferential direction of the stator core 1 and the second stator teeth 122 are distributed between the first stator teeth 121 and the fourth stator teeth 124, the second stator teeth 122 can be regarded as the 2 nd stator teeth 12, the fifth stator teeth 125 can be regarded as the 5 th stator teeth 12, and at the same time, since the second coil 25 is wound on the second stator teeth 122 and the fifth coil 28 is wound on the fifth stator teeth 125, the second coil 25 can be regarded as the 2 nd coil 2, and the fifth coil 28 can be regarded as the 5 th coil 2. Thus, when the second coil 25 and the fifth coil 28 are connected in series, the second phase winding is formed on the stator core 1.
As shown in fig. 4, in some embodiments, the 3N stator teeth 12 further include third and sixth stator teeth 123 and 126, the third and sixth stator teeth 123 and 126 are distributed along the circumferential direction of the stator core 1, and the third stator teeth 123 are distributed between the second and fourth stator teeth 122 and 124, and the sixth stator teeth 126 are distributed on a side of the fifth stator teeth 125 remote from the second stator teeth 122; the 3N coils 2 include a third coil 26 and a sixth coil 29, the third coil 26 is wound on the third stator tooth 123, the sixth coil 29 is wound on the sixth stator tooth 126, and the third coil 26 and the sixth coil 29 are connected in series.
It can be appreciated that since the third stator teeth 123 and the sixth stator teeth 126 are distributed along the circumferential direction of the stator core 1 with the third stator teeth 123 being distributed between the second stator teeth 122 and the fourth stator teeth 124, the third stator teeth 123 can be regarded as the 3 rd stator teeth 12, the sixth stator teeth 126 can be regarded as the 6 th stator teeth 12, and at the same time, since the third coil 26 is wound on the third stator teeth 123 and the sixth coil 29 is wound on the sixth stator teeth 126, the third coil 26 can be regarded as the 3 rd coil 2, and the sixth coil 29 can be regarded as the 6 th coil 2. Thus, when the third coil 26 and the sixth coil 29 are connected in series, the stator core 1 is provided with the third phase winding.
Thereby, the first coil 24, the second coil 25, the third coil 26, the fourth coil 27, the fifth coil 28, and the sixth coil 29 are sequentially distributed along the circumferential direction of the stator core 1, and three-phase uniformly distributed windings are formed on the stator core 1.
The first stator tooth 121, the second stator tooth 122, the third stator tooth 123, the fourth stator tooth 124, the fifth stator tooth 125, and the sixth stator tooth 126 are all stator teeth 12, and the first coil 24, the second coil 25, the third coil 26, the fourth coil 27, the fifth coil 28, and the sixth coil 29 are all coil 2.
In some embodiments, the coil 2 includes a plurality of wires 21, the plurality of wires 21 being serially connected in turn and wound on the stator teeth 12.
It will be appreciated that the plurality of wires 21 are serially connected in sequence to form the coil 2, so that the overcurrent capacity of the coil 2 is greatly enhanced, and thus, when the stator structure is applied to a turbomachine, stable high-speed operation of the turbomachine can be ensured.
It should be noted that the specific number of the wires 21 may be set according to actual needs, and is not limited thereto, where the gaps 3 should be ensured between the adjacent coils 2 in the stator slots 11 when the wires 21 are set.
The specific type of the wire 21 may be set according to actual needs, and is not limited thereto, and the wire 21 may be a copper wire, for example.
The embodiment of the disclosure also provides a motor which is characterized by comprising a rotor and the stator structure sleeved on the rotor.
It can be understood that the n-th coil 2 and the n+3-th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series, so that the n-th coil 2 and the n+3-th coil 2 form a single-phase winding structure on the stator core 1, and the n-th coil 2 and the n+3-th coil 2 connected in series are separated by two coils 2, so that a three-phase winding structure is formed on the stator core 1, thereby, when the motor is applied to a turbomachine, the stator structure can realize rotor rotation under the drive of three-phase electricity, or realize the output of three-phase electricity under the rotation of the rotor, and further realize energy conversion.
Wherein, because 3N coils 2 are respectively wound on 3N stator teeth 12 for every coil 2 only distributes on a corresponding stator tooth 12, thereby effectively reduced the overlap portion at stator core 1 tip between a plurality of coils 2, and then shortened the axial length of coil 2, reduced stator structure's volume, from this, when the motor was applied to turbo machine, avoided turbo machine too big problem of volume, not only made turbo machine can stably realize high rotational speed operation, but also made turbo machine's arrangement space more nimble facility.
Moreover, due to the fact that the axial length of the coil 2 is shortened, the size of the coil 2 is reduced, the heating value of the coil 2 is further reduced, the thermal resistance between the coil 2 and the stator teeth 12 is further reduced, and the heat conduction efficiency of the stator core 1 to the coil 2 is further improved, therefore, the heating problem of the stator structure is effectively controlled, and when the motor is applied to the turbomachine, stable high-rotation-speed operation of the turbomachine can be achieved.
It should be noted that the specific type of the motor may be set according to actual needs, which is not limited.
The number of poles of the rotor may be set according to actual needs, which is not limited.
In some embodiments, when N in the stator structure is 2, the number of poles of the motor is 2.
It can be understood that when N is 2 and the number of poles of the motor is 2, a 6-slot 2-pole motor structure is formed, thereby meeting the use requirement.
The disclosed embodiments also provide a turbomachine including an electric machine as in the disclosed embodiments.
It can be understood that the n-th coil 2 and the n+3-th coil 2 distributed along the circumferential direction of the stator core 1 are connected in series such that the n-th coil 2 and the n+3-th coil 2 form a single-phase winding structure on the stator core 1, and the n-th coil 2 and the n+3-th coil 2 connected in series are spaced apart by two coils 2 such that a three-phase winding structure is formed on the stator core 1, thereby enabling the turbomachine to stably achieve energy conversion using the motor.
Wherein, because 3N coils 2 are respectively wound on 3N stator teeth 12 for every coil 2 only distributes on a corresponding stator tooth 12, thereby effectively reduced the overlap portion at stator core 1 tip between a plurality of coils 2, and then shortened the axial length of coil 2, reduced stator structure's volume, from this, avoided the too big problem of turbomachine volume, not only made turbomachine can stably realize high rotational speed operation, but also made turbomachine's layout space more nimble facility.
Moreover, due to the fact that the axial length of the coil 2 is shortened, the size of the coil 2 is reduced, the heating value of the coil 2 is further reduced, the thermal resistance between the coil 2 and the stator teeth 12 is further reduced, and the heat conduction efficiency of the stator core 1 to the coil 2 is further improved, therefore, the heating problem of the stator structure is effectively controlled, and stable high-rotation-speed operation of the turbomachine is further achieved.
The specific type of the turbomachine may be set according to actual needs, and the turbomachine may be, for example, an air compressor or the like without limitation.
In the description of the present disclosure, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present disclosure in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., 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 present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.
Claims (10)
1. A stator structure, comprising:
a stator core, the stator core comprising: 3N stator slots uniformly distributed along the circumferential direction of the stator core, wherein stator teeth are formed between adjacent stator slots, and N is an integer greater than 1;
the stator comprises 3N coils, wherein 3N coils are respectively wound on 3N stator teeth, gaps are arranged between adjacent coils in the stator slots, the nth coil and the (n+3) th coil distributed along the circumferential direction of the stator core are connected in series, and N is an integer of 1 to 3N.
2. The stator structure of claim 1, wherein,
the N is 2;
the stator comprises 6 coils, a stator core and a stator, wherein the 6 coils are sequentially wound on the 6 stator teeth, the 1 st coil and the 4 th coil distributed along the circumference of the stator core are connected in series, the 2 nd coil and the 5 th coil distributed along the circumference of the stator core are connected in series, and the 3 rd coil and the 6 th coil distributed along the circumference of the stator core are connected in series.
3. The stator structure according to claim 2, wherein a first lead-out wire is provided on a side of an nth coil which is distributed along a circumferential direction of the stator core, which is away from an (n+3) th coil, a second lead-out wire is provided on a side of an (n+3) th coil which is distributed along a circumferential direction of the stator core, which is close to an (n+3) th coil, and a side of an (n+3) th coil which is away from an (n) th coil are connected.
4. The stator structure of claim 2, wherein,
the 3N stator teeth include: the stator comprises a first stator tooth and a fourth stator tooth, wherein the first stator tooth and the fourth stator tooth are distributed along the circumferential direction of the stator core, and two stator teeth are distributed between the first stator tooth and the fourth stator tooth;
the 3N coils include: a first coil wound on the first stator tooth and a fourth coil wound on the fourth stator tooth, and the first coil and the fourth coil are connected in series.
5. The stator structure of claim 4, wherein,
the 3N stator teeth further include: a second stator tooth and a fifth stator tooth, wherein the second stator tooth and the fifth stator tooth are distributed along the circumferential direction of the stator core, the second stator tooth is distributed between the first stator tooth and the fourth stator tooth, and the fifth stator tooth is distributed on one side of the fourth stator tooth away from the first stator tooth;
the 3N coils further include: the second coil is wound on the second stator tooth, the fifth coil is wound on the fifth stator tooth, and the second coil and the fifth coil are connected in series.
6. The stator structure of claim 5, wherein,
the 3N stator teeth further include: a third stator tooth and a sixth stator tooth, wherein the third stator tooth and the sixth stator tooth are distributed along the circumferential direction of the stator core, the third stator tooth is distributed between the second stator tooth and the fourth stator tooth, and the sixth stator tooth is distributed on one side of the fifth stator tooth away from the second stator tooth;
the 3N coils include: the third coil is wound on the third stator tooth, the sixth coil is wound on the sixth stator tooth, and the third coil and the sixth coil are connected in series.
7. The stator structure according to any one of claims 1 to 6, characterized in that the coil includes:
the plurality of wires are sequentially connected in series and wound on the stator teeth.
8. An electric machine, comprising: a rotor and a stator structure as claimed in any one of claims 1 to 7 sleeved on said rotor.
9. The motor of claim 8, wherein the number of poles of the motor is 2 when N in the stator structure is 2.
10. A turbomachine, comprising: an electrical machine as claimed in claim 8 or 9.
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| CN202322124551.6U CN220492730U (en) | 2023-08-07 | 2023-08-07 | Stator structure, motor and turbomachine |
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| CN202322124551.6U CN220492730U (en) | 2023-08-07 | 2023-08-07 | Stator structure, motor and turbomachine |
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