CN112564330B - Multi-rotor motor stator core structure - Google Patents
Multi-rotor motor stator core structure Download PDFInfo
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- CN112564330B CN112564330B CN202011550661.3A CN202011550661A CN112564330B CN 112564330 B CN112564330 B CN 112564330B CN 202011550661 A CN202011550661 A CN 202011550661A CN 112564330 B CN112564330 B CN 112564330B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 136
- 239000008358 core component Substances 0.000 claims abstract description 35
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical group [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 136
- 239000000470 constituent Substances 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 abstract description 106
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000005291 magnetic effect Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
Abstract
The invention discloses a multi-rotor motor stator core structure, which comprises a core component A, a core component B, a core component C and stator teeth D; one iron core component A and two iron core components B form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure; or one iron core component A and two iron core components C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure; or the iron core assembly A, the iron core assembly B and the iron core assembly C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure; or more than three stator teeth D are spliced to form the multi-rotor motor stator core structure. The invention can greatly improve the power density and torque density of the traditional motor at present, improve the utilization rate of iron core materials and motor space, and provide a new thought for motor design.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a stator core structure of a multi-rotor motor.
Background
At present, the stator core structure (shown in figure 1) of the conventional inner rotor motor at home and abroad is formed by stamping silicon steel sheets into fixed sizes and then laminating or pressing soft magnetic composite materials; shown in fig. 1 and 2: sequence 1 is a stator tooth, sequence 2 is a stator slot, sequence 3 is an air gap surface (a surface of the motor adjacent to a rotor permanent magnet through an air gap), and sequence 4 is a stator fixing surface (matching with other mechanical surfaces to fix an iron core); the motor products at home and abroad have various designs on the number of stator teeth (same as the number of stator slots) or have partial adjustment and modification on partial detail size, but the whole appearance is not changed greatly.
The axial magnetic flux double-rotor motor frequently appeared in recent years represents a great advantage in terms of power density (power/weight) of the motor, and the iron core structure is shown in fig. 3: the sequence 5 and the sequence 6 are air gap surfaces (2 air gap surfaces, so that the double-rotor can be manufactured), the sequence 7 and the sequence 8 are coil winding surfaces, and the sequence 7, the opposite surface thereof, the sequence 8 and the opposite surface thereof jointly form stator teeth for winding coils; the method is subject to the problem that the iron core production process is poor, and the existing production materials tend to incline towards SMC (soft magnetic composite soft magnetic composite material); and the magnetic permeability of the SMC is lower, so that the improvement of the motor performance is limited.
Problems and disadvantages of the prior art solutions are as follows:
1. the stator iron cores of the inner rotor motor and the outer rotor motor shown in the attached drawings 1 and 2 are traditional motor products, and the common problems are that: under the same heat dissipation condition, the power density is lower, and the use amount of the ferromagnetic material is large.
2. In the stator core of the axial magnetic flux double-rotor motor shown in the figure 3, the production difficulty of the core is high, the production manufacturability of windings is poor, and the production cost of the motor is multiplied.
Disclosure of Invention
The invention aims at the problems, overcomes the defects of the prior art, and provides a stator core of a multi-rotor motor; the invention can greatly improve the power density and torque density of the traditional motor at present, improve the utilization rate of iron core materials and motor space, and provide a new thought for motor design.
In order to achieve the above purpose, the present invention adopts the following technical scheme.
The invention relates to a multi-rotor motor stator core structure, which is characterized in that: comprises an iron core constituent A, an iron core constituent B, an iron core constituent C and stator teeth D; one iron core component A and two iron core components B form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure;
or one iron core component A and two iron core components C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure;
or the iron core assembly A, the iron core assembly B and the iron core assembly C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure;
or more than three stator teeth D are spliced to form the multi-rotor motor stator core structure.
As a preferable mode of the invention, the iron core constituent body a comprises an iron core a main body part and an iron core a winding fixed block, wherein the iron core a winding fixed block is connected with the middle part of one side of the iron core a main body part; an iron core A splicing column is arranged on the iron core A winding fixing block, and an iron core A column embedded groove is arranged on the iron core A main body part on the other side opposite to the iron core A winding fixing block.
Further, the main body part of the iron core A comprises an outer curved surface of the iron core A, an inner curved surface of the iron core A and an splicing surface of the iron core A.
Further, the iron core A winding fixing block comprises a first iron core A winding fixing surface, a second iron core A winding fixing surface, a third iron core A winding fixing surface and a fourth iron core A winding fixing surface.
In another preferred embodiment of the present invention, the core structure B includes an outer curved surface of the core B, a joint surface of the core B, and an inner curved surface of the core B, and the core structure B has a main body portion that matches a longitudinal cross-sectional profile of the main body portion of the core a of the core structure a.
In another preferred embodiment of the present invention, the core constituent C is provided with a first stator pole piece and a second stator pole piece, and the shape of the joint surface of the core constituent C and the core constituent a is identical to the shape of the longitudinal section of the main body of the core a of the core constituent a.
As another preferable scheme of the invention, the stator tooth D comprises a stator tooth D main body part and a stator tooth D winding fixed block, wherein the stator tooth D winding fixed block is connected to the middle part of one side of the stator tooth D main body part; the stator tooth D splicing column is arranged on the stator tooth D winding fixed block, and the stator tooth D column embedded groove is arranged on the main body part of the stator tooth D on the other side opposite to the stator tooth D winding fixed block.
As another preferable scheme of the invention, the stator tooth D main body part comprises a first stator tooth D air gap surface, a second stator tooth D air gap surface, a third stator tooth D air gap surface and a fourth stator tooth D air gap surface, and the stator tooth D winding fixing block comprises a first stator tooth D winding fixing surface, a second stator tooth D winding fixing surface, a third stator tooth D winding fixing surface and a fourth stator tooth D winding fixing surface.
As another preferable scheme of the invention, the stator core structure also comprises stator teeth E, and more than three stator teeth E are spliced to form a three-rotor motor stator core structure; the stator teeth E comprise a stator teeth E main body part and stator teeth E winding fixed blocks, and the stator teeth E winding fixed blocks comprise a first stator teeth E winding fixed block and a second stator teeth E winding fixed block; the first stator tooth E winding fixed block and the second stator tooth E winding fixed block are arranged on two sides of the main body part of the stator tooth E.
As another preferable scheme of the invention, a first stator tooth E air gap surface outside gap, a second stator tooth E air gap surface outside gap, a first stator tooth E air gap surface inside gap and a second stator tooth E air gap surface inside gap are arranged on the main body part of the stator tooth E; the gaps in the air gap surfaces of the two adjacent stator teeth E form an air gap surface internal composite gap, and the connecting surfaces of the winding fixing blocks of the two adjacent stator teeth E are fixing block splicing surfaces; the space adjacent to the winding wound on the stator tooth E winding fixing block at the inner side of the composite notch in the air gap surface is the mounting position of the follow-up stator bracket.
The invention has the beneficial effects of.
Compared with the domestic prior technical scheme, the multi-rotor motor stator core structure provided by the invention has the following advantages:
1. the invention breaks through the design confinement of the traditional motor iron core, improves the utilization rate of ferromagnetic materials to the maximum extent, and can greatly improve the performance of the motor under the same volume; the power density of the motor is increasingly required in the market, and the invention is expected to provide a new solution for the application fields of high power, low cost and low weight.
2. The invention provides a novel structure of the multi-rotor stator core, overturns the design and production modes of the traditional motor, provides a novel design thought of the motor, and provides a novel expansion direction for the development of the multi-rotor motor with wide prospect.
3. Compared with a double-rotating axial flux motor, the double-rotor axial flux motor breaks through: the limitation of the motor power cannot be increased by increasing the axial length of the iron core; the stator core structure can increase the output power of radial magnetic flux by increasing the length of the core, so the stator core structure has obvious advantages compared with a dual-rotor axial magnetic flux motor.
4. If the SMC soft magnetic material is applied to the motor, the motor structure is not changed, and the motor structure is applicable to a formed winding (flat copper wire), so that the flexibility of motor design and production is further improved, and a new solution is provided for a high-power density motor.
Drawings
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description is presented by way of example only and is not intended to limit the invention.
Fig. 1 is a schematic diagram of a conventional stator core structure of a conventional inner rotor motor.
Fig. 2 is a schematic diagram of a conventional stator core structure of an external rotor motor.
Fig. 3 is a schematic diagram of a stator core structure of a conventional axial-flux dual-rotor motor.
Fig. 4 is a schematic perspective view of an angle of the core structure a according to the present invention.
Fig. 5 is a schematic perspective view of another angle of the core structure a of the present invention.
Fig. 6 is a schematic plan view of the core structure B of the present invention.
Fig. 7 is a schematic perspective view of the core structure B of the present invention.
Fig. 8 is a schematic view of an explosion structure of an angle-spliced type of one core structure a and two core structures B according to the present invention.
Fig. 9 is a schematic view of an explosion structure of another angle of the two core components B and one core component a according to the present invention.
Fig. 10 is a schematic view showing a structure of a splicing system of one angle between one core structure a and two core structures B according to the present invention.
Fig. 11 is a schematic view showing another angle splicing structure of one core structure a and two core structures B according to the present invention.
Fig. 12 is a schematic plan view of the core structure C of the present invention.
Fig. 13 is a schematic perspective view of the core structure C of the present invention.
Fig. 14 is a perspective view of an angle of the stator tooth D according to the present invention.
Fig. 15 is a schematic perspective view of another angle of the stator tooth D of the present invention.
Fig. 16 is a schematic perspective view showing an angle at which a plurality of stator teeth D of the present invention are spliced into an entire stator core structure.
Fig. 17 is a schematic perspective view of another angle of the present invention in which a plurality of stator teeth D are spliced into the entire stator core structure.
Fig. 18 is a schematic view of the position of the rear winding of the hidden part stator teeth.
Fig. 19 is a schematic plan view of a stator tooth E of a stator core structure of a three-rotor motor according to an embodiment of the present invention.
Fig. 20 is a schematic perspective view of a stator tooth E of a stator core structure of a three-rotor motor according to an embodiment of the present invention.
Fig. 21 is a schematic structural diagram of a splicing manner of a plurality of stator teeth E of a stator core structure of a three-rotor motor according to an embodiment of the present invention.
Fig. 22 is a schematic overall plan view of a three-rotor motor stator core structure in accordance with an embodiment of the present invention.
Fig. 23 is an overall perspective view of a three-rotor motor stator core structure according to an embodiment of the present invention.
The labels in fig. 1 to 3: 1 is a stator tooth, 2 is a stator groove, 3 is an air gap surface, 4 is a stator fixing surface,
5 and 6 are air gap surfaces, and 7 and 8 are coil winding surfaces;
marked in fig. 4 to 18: 9 is the outer curved surface of the iron core A, 10 is the splicing surface of the iron core A, and 11 is the first iron core
The A winding fixing surface 12 is a second iron core A winding fixing surface, 13 is a third iron core A winding fixing surface, 14 is a fourth iron core A winding fixing surface, 15 is an iron core A inner curved surface, 16 is an iron core A splicing column, 17 is an iron core A column embedded groove, 18 is an iron core A main body part, 19 is an iron core A winding fixing block, 20 is an iron core B outer curved surface, 21 is an iron core B splicing surface, 22 is an iron core B inner curved surface, 23 is a first stator pole shoe, 24 is a second stator pole shoe, 25 is a first stator tooth D air gap surface, 26 is a second stator tooth D air gap surface, 27 is a third stator tooth D air gap surface, 28 is a first stator tooth D winding fixed surface, 29 is a second stator tooth D winding fixed surface, 30 is a third stator tooth D winding fixed surface, 31 is a fourth stator tooth D winding fixed surface, 32 is a fourth stator tooth D air gap surface, 33 is a stator tooth D cylinder embedded groove, 34 is a stator tooth D spliced pole, 35 is a first formed integral iron core structure end surface air gap surface, 36 is a formed integral iron core structure outer diameter air gap surface, 37 is a formed integral iron core structure inner diameter air gap surface, 38 is a second formed integral iron core structure end surface air gap surface, and 39 is a winding;
the labels in fig. 19 to 23: 40 is the gap out of plane of the first stator tooth E, 41 is the first stator tooth E
The gap in-plane notch 42 is a second stator tooth E gap in-plane notch, 43 is a second stator tooth E gap out-of-plane notch, 44 is a first stator tooth E winding fixed block, 45 is a second stator tooth E winding fixed block, 46 is a fixed block splicing surface, 47 is an air gap in-plane composite notch, and 48 is a random stator bracket mounting position.
Detailed Description
Referring to the drawings, the invention relates to a multi-rotor motor stator core structure, which comprises a core component A, a core component B, a core component C and stator teeth D; one iron core component A and two iron core components B form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure; or one iron core component A and two iron core components C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure; or the iron core assembly A, the iron core assembly B and the iron core assembly C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure; or more than three stator teeth D are spliced to form the multi-rotor motor stator core structure.
As shown in fig. 4 and 5, the core assembly a includes a core a main body portion 18, a core a winding fixing block 19, and the core a winding fixing block 19 is connected to a middle portion of one side of the core a main body portion 18; an iron core A splicing column 16 is arranged on the iron core A winding fixed block 19, and an iron core A column embedded groove 17 is arranged on the iron core A main body part 18 at the other side opposite to the iron core A winding fixed block 19; further, the main body part 18 of the iron core A comprises an outer curved surface 9 of the iron core A, an inner curved surface 15 of the iron core A and a splicing surface 10 of the iron core A; the iron core A winding fixing block 19 comprises a first iron core A winding fixing surface 11, a second iron core A winding fixing surface 12, a third iron core A winding fixing surface 13 and a fourth iron core A winding fixing surface 14.
As shown in fig. 6 and 7, the core structure B includes a core B outer curved surface 20, a core B joint surface 21, and a core B inner curved surface 22, and the core structure B main body portion conforms to the longitudinal section profile of the core a main body portion 18 of the core structure a.
As shown in fig. 12 and 13, the core component C is provided with a first stator pole piece 23 and a second stator pole piece 24, and the shape of the joint surface of the core component C and the core component a matches the shape of the longitudinal section of the core a main body 18 of the core component a.
As shown in fig. 14 and 15, the stator tooth D includes a stator tooth dbody portion and a stator tooth dback fixing block, and the stator tooth dback fixing block is connected to a middle portion of one side of the stator tooth dbody portion; the stator tooth D splicing column 34 is arranged on the stator tooth D winding fixed block, and the stator tooth D column embedded groove 33 is arranged on the main body part of the stator tooth D on the other side opposite to the stator tooth D winding fixed block; the stator tooth D main body part comprises a first stator tooth D air gap surface 25, a second stator tooth D air gap surface 26, a third stator tooth D air gap surface 27 and a fourth stator tooth D air gap surface 32, and the stator tooth D winding fixing block comprises a first stator tooth D winding fixing surface 28, a second stator tooth D winding fixing surface 29, a third stator tooth D winding fixing surface 30 and a fourth stator tooth D winding fixing surface 31.
As shown in fig. 19, 20, 22 and 23, the stator core structure further includes stator teeth E, and more than three stator teeth E are spliced to form a three-rotor motor stator core structure; the stator teeth E comprise a stator teeth E main body part and stator teeth E winding fixed blocks, and the stator teeth E winding fixed blocks comprise a first stator teeth E winding fixed block 44 and a second stator teeth E winding fixed block 45; the first stator tooth E winding fixed block 44 and the second stator tooth E winding fixed block 45 are arranged on two sides of the main body part of the stator tooth E; the main body part of the stator tooth E is provided with a first stator tooth E air gap surface external notch 40, a second stator tooth E air gap surface external notch 43, a first stator tooth E air gap surface internal notch 41 and a second stator tooth E air gap surface internal notch 42; the gap in the air gap surface of two adjacent stator teeth E forms an air gap in-plane composite gap 47, and the connecting surface of the winding fixed blocks of two adjacent stator teeth E is a fixed block splicing surface 46; the space adjacent to the winding wound on the stator tooth E winding fixing block inside the air gap surface inner synthesis notch 47 is a follow-up stator bracket mounting position 48.
The stator winding is wound on or formed around a rectangular iron core A winding fixing block 19 with a first iron core A winding fixing surface 11, a second iron core A winding fixing surface 12, a third iron core A winding fixing surface 13 and a fourth iron core A winding fixing surface 14 or a rectangular stator tooth D winding fixing block with a first stator tooth D winding fixing surface 28, a second stator tooth D winding fixing surface 29, a third stator tooth D winding fixing surface 30 and a fourth stator tooth D winding fixing surface 31; the axis of the stator winding is parallel to the tangent line of the inner diameter and the outer diameter of the cylinder formed by the whole stator core structure; or has smaller angle difference with tangent line of the inner diameter and the outer diameter of the cylinder (the angle difference is less than or equal to 15 degree)
The entire stator core structure shown in fig. 16 and 17 has a plurality of air gap surfaces, respectively: an outer diameter air gap surface 36 of the integral core structure, an inner diameter air gap surface 37 of the integral core structure, an end surface air gap surface 35 of the integral core structure of the first of the two end surfaces of the core, and an end surface air gap surface 38 of the integral core structure of the second of the two end surfaces of the core; wherein: one or two air gap surface functions (adjacent to the rotor permanent magnet through an air gap to perform electromechanical energy conversion) can be changed into a mechanical fixing surface, a radiating surface and the like; namely: it is within the scope of this invention to use only 2 or 3 of the 4 air gap surfaces shown above.
The specific description is as follows: the curved surfaces shown by the outer curved surface 9 of the iron core A and the outer curved surface 20 of the iron core B are spliced into continuous surfaces, and after being spliced by a plurality of stator teeth, the continuous surfaces are spliced into an outer diameter air gap surface 36 of the integral iron core structure.
The specific description is as follows: the curved surfaces shown by the inner curved surface 15 of the iron core A and the inner curved surface 22 of the iron core B are spliced into continuous surfaces, and after being spliced by a plurality of stator teeth, the continuous surfaces are spliced into an integral iron core structure inner diameter air gap surface 37.
The outer diameter air gap surface 36 of the integral iron core structure and the inner diameter air gap surface 37 of the integral iron core structure are used as mechanical fixing surfaces and radiating surfaces, so that the manufacturability and the radiating effect of the motor can be greatly improved.
The specific description is as follows: the core A splicing column 16 and the core A column embedded groove 17 provide a solution for splicing two stator teeth, the stator tooth D column embedded groove 33 and the stator tooth D splicing column 34 are the splicing solutions between two other stator teeth, the splicing solutions of the stator teeth are many, the stator tooth structures shown in figures 19 and 20 have no splicing positioning surfaces, and other fixture fixtures can be used for realizing splicing positioning in assembly.
The specific description is as follows: the positions and functions of the stator core structures where the core structure B and the core structure C are located are the same, and the difference is that: the iron core component B can be formed by stamping and laminating silicon steel sheets, and the iron core component C is added with the first stator pole shoe 23 and the second stator pole shoe 24, so that the iron core component B is difficult to be formed by stamping and laminating the silicon steel sheets, and is required to be manufactured by adopting an SMC material.
The specific description is as follows: the present invention is not limited to the iron core manufacturing material, namely: soft magnetic materials such as silicon steel sheets, SMC and the like can realize the content of the invention; in particular: the structures shown in fig. 11 and fig. 15 are two cases for realizing the invention by selecting silicon steel sheets and SMC materials.
The specific description is as follows: in fig. 14 and 15, there is specifically illustrated a case of manufacturing stator teeth of a multi-rotor stator core using SMC material, in which: the first stator tooth D air gap surface 25, the second stator tooth D air gap surface 26, the third stator tooth D air gap surface 27 and the fourth stator tooth D air gap surface 32 are all air gap surfaces; the rectangular stator tooth D winding fixed block surrounded by four planes pointed by the first stator tooth D winding fixed surface 28, the second stator tooth D winding fixed surface 29, the third stator tooth D winding fixed surface 30 and the fourth stator tooth D winding fixed surface 31 can be used as a winding installation fixed plane; a plurality of stator teeth D shown in fig. 14 and 15 may be spliced into a complete multi-rotor motor stator core structure.
The specific description is as follows: the fixation between each stator tooth of the multi-rotor motor stator core structure and between the windings 39 and the stator teeth can adopt the scheme of epoxy resin encapsulation so as to increase the strength and the insulation performance of the whole structure.
The specific description is as follows: the stator core structure of the multi-rotor motor only covers the structural characteristics and winding characteristics of the stator core structure; the stator is irrelevant to the basic groove matching and stator groove type and tooth shape of the stator.
The specific description is as follows: fig. 19 and 20 illustrate an embodiment of a stator tooth of a stator core structure of a three-rotor motor according to the present invention, wherein the first stator tooth E air-gap out-of-plane notch 40 and the second stator tooth E air-gap out-of-plane notch 43 are notches formed by two adjacent air-gap surfaces, and the notches can be any shape and size, compared to the stator tooth D in fig. 15.
The specific description is as follows: stator teeth E and attachment of the three-rotor motor stator core structure shown in fig. 19 and 20
In fig. 15, the gap surface of the first stator tooth E is 2 gaps of the gap surface of the second stator tooth E, and the gap surface of the second stator tooth E is 41, and the gap shape can be any shape and size.
The specific description is as follows: the planes of the winding fixing blocks of the stator teeth E shown in fig. 19 are the same as those of the rectangular stator teeth D winding fixing blocks surrounded by the four planes of the first stator teeth D winding fixing surface 28, the second stator teeth D winding fixing surface 29, the third stator teeth D winding fixing surface 30 and the fourth stator teeth D winding fixing surface 31 in the stator teeth D of fig. 15: for placing the motor windings; each plane shown by the winding fixed block of the stator tooth E can be triangle, rectangle, trapezoid or ellipse, and the above shapes are spliced; and, whether to add the fillets and chamfers shown in the sequence 45 is within the protection scope of the invention.
The specific description is as follows: compared with the stator tooth D in the stator core structure of the three-rotor motor shown in the figures 19 and 20, the stator tooth E of the stator core structure of the three-rotor motor shown in the figures 19 and 20 is formed by replacing a rectangular stator tooth D winding fixed block surrounded by four planes of a first stator tooth D winding fixed surface 28, a second stator tooth D winding fixed surface 29, a third stator tooth D winding fixed surface 30 and a fourth stator tooth D winding fixed surface 31 with a first stator tooth E winding fixed block 44 and a second stator tooth E winding fixed block 45 which are separated at two sides of the stator tooth; the functions of the stator teeth are consistent after the stator teeth are spliced; i.e. whatever the part used to house the motor windings is distributed over the stator teeth, is within the scope of the invention.
The specific description is as follows: the stator core structure of the multi-rotor motor comprises a plurality of independent stator teeth D (figure 15), and can also be manufactured into a stator tooth D assembly with an integral structure from 2 or more stator teeth D, and then the stator teeth D assembly is spliced into a complete stator core structure; fig. 21 shows a combination of 3 stator teeth E shown in fig. 20, which is an integrally formed part, and a complete motor core structure is formed by a plurality of parts shown in fig. 20: as shown in fig. 22 and 23.
In addition, the invention can realize the multi-rotor function by forming a combination by 2, 3, 4 or a plurality of independent stator teeth, and no matter what parts are formed by the stator teeth, the invention is within the protection scope of the invention.
The specific description is as follows: fig. 22 and 23 illustrate a three-rotor motor stator with stator teeth E of fig. 19 and 20 spliced together
The overall schematic diagram of the sub-iron core structure, wherein the air gap in-plane composite notch 47 is a notch formed by splicing the first stator tooth E air gap in-plane notch 41 and the second stator tooth E air gap in-plane notch 42 of two adjacent stator teeth E, the notch can be used for the purposes of motor winding outgoing lines, wiring, fixing a stator iron core and the like, and the space inside the air gap in-plane composite notch 47, which is adjacent to a motor winding, can be used for installing a random stator bracket, namely a random stator bracket installation position 48, so that the heat conduction efficiency of the winding to the outside can be increased.
It should be understood that the foregoing detailed description of the present invention is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention may be modified or substituted for the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.
Claims (6)
1. A multi-rotor motor stator core structure; the method is characterized in that: comprises an iron core constituent A, an iron core constituent B, an iron core constituent C and stator teeth D; one iron core component A and two iron core components B form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure;
or one iron core component A and two iron core components C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure;
or the iron core assembly A, the iron core assembly B and the iron core assembly C form one stator tooth, and more than three stator teeth are spliced to form the multi-rotor motor stator core structure;
or more than three stator teeth D are spliced to form the multi-rotor motor stator core structure;
the iron core component A comprises an iron core A main body part and an iron core A winding fixed block, wherein the iron core A winding fixed block is connected to the middle part of one side of the iron core A main body part; an iron core A splicing column is arranged on the iron core A winding fixing block, and an iron core A column embedded groove is arranged on the iron core A main body part on the other side opposite to the iron core A winding fixing block;
the iron core component B comprises an iron core B outer curved surface, an iron core B splicing surface and an iron core B inner curved surface, and the longitudinal section outline of the main body part of the iron core component B is consistent with that of the main body part of the iron core A of the iron core component A;
the iron core constituent C is provided with a first stator pole shoe and a second stator pole shoe, and the splicing surface appearance of the iron core constituent C and the iron core constituent A is consistent with the longitudinal section appearance of the iron core A main body part of the iron core constituent A;
the stator tooth D comprises a stator tooth D main body part and a stator tooth D winding fixed block, and the stator tooth D winding fixed block is connected to the middle part of one side of the stator tooth D main body part; the stator tooth D splicing column is arranged on the stator tooth D winding fixed block, and the stator tooth D column embedded groove is arranged on the main body part of the stator tooth D on the other side opposite to the stator tooth D winding fixed block.
2. A multi-rotor motor stator core structure according to claim 1, wherein: the main body part of the iron core A comprises an outer curved surface of the iron core A, an inner curved surface of the iron core A and an splicing surface of the iron core A.
3. A multi-rotor motor stator core structure according to claim 1, wherein: the iron core A winding fixing block comprises a first iron core A winding fixing surface, a second iron core A winding fixing surface, a third iron core A winding fixing surface and a fourth iron core A winding fixing surface.
4. A multi-rotor motor stator core structure according to claim 1, wherein: the stator tooth D main body part comprises a first stator tooth D air gap surface, a second stator tooth D air gap surface, a third stator tooth D air gap surface and a fourth stator tooth D air gap surface, and the stator tooth D winding fixing block comprises a first stator tooth D winding fixing surface, a second stator tooth D winding fixing surface, a third stator tooth D winding fixing surface and a fourth stator tooth D winding fixing surface.
5. A multi-rotor motor stator core structure according to claim 1, wherein: the stator core structure also comprises stator teeth E, and more than three stator teeth E are spliced to form a three-rotor motor stator core structure; the stator teeth E comprise a stator teeth E main body part and stator teeth E winding fixed blocks, and the stator teeth E winding fixed blocks comprise a first stator teeth E winding fixed block and a second stator teeth E winding fixed block; the first stator tooth E winding fixed block and the second stator tooth E winding fixed block are arranged on two sides of the main body part of the stator tooth E.
6. The multi-rotor motor stator core structure of claim 5, wherein: the main body part of the stator tooth E is provided with a first stator tooth E air gap surface external notch, a second stator tooth E air gap surface external notch, a first stator tooth E air gap surface internal notch and a second stator tooth E air gap surface internal notch; the gaps in the air gap surfaces of the two adjacent stator teeth E form an air gap surface internal composite gap, and the connecting surfaces of the winding fixing blocks of the two adjacent stator teeth E are fixing block splicing surfaces; the space adjacent to the winding wound on the stator tooth E winding fixing block at the inner side of the composite notch in the air gap surface is the mounting position of the follow-up stator bracket.
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