CN115566818A - Stator core assembly, stator assembly and driving motor - Google Patents
Stator core assembly, stator assembly and driving motor Download PDFInfo
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- CN115566818A CN115566818A CN202211273360.XA CN202211273360A CN115566818A CN 115566818 A CN115566818 A CN 115566818A CN 202211273360 A CN202211273360 A CN 202211273360A CN 115566818 A CN115566818 A CN 115566818A
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- stator core
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- 238000004804 winding Methods 0.000 claims description 28
- 230000005389 magnetism Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
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- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2798—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the stator face a rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of driving motors, and discloses a stator core assembly, a stator assembly and a driving motor, wherein the stator core assembly comprises a first stator end plate, a second stator end plate and a plurality of stator cores; the first stator end plate and the second stator end plate are arranged oppositely; a plurality of stator core presss from both sides between first stator end plate and the second stator end plate, and around the regional interval arrangement in the center of first stator end plate and second stator end plate, and every stator core passes through first fixed knot structure on the first stator end plate and the second location structure cooperation location on the second stator end plate. The stator core assembly can be conveniently assembled, simplifies the manufacturing process and is beneficial to torque transmission.
Description
Technical Field
The invention relates to the technical field of driving motors, in particular to a stator core assembly, a stator assembly and a driving motor.
Background
In axial field machines, conventional stator cores come in two forms:
1. a conventional stator core represented by YASA has a structure as shown in fig. 1. This structure has the following drawbacks: from the aspect of process, in order to realize the molding of the flat wire winding 013, due to the existence of pole shoes at two ends, the stator core 011 and the stator core 012 cannot be made into a whole, and if the stator core 011 and the stator core 012 are made into a whole, the flat wire winding cannot be installed;
2. the structure of the stator core represented by the hub is shown in fig. 2, the stator core 021 and the stator core 022 are formed by pressing SMC soft magnetic material, a groove is arranged between the stator core 021 and the stator core 022, and the stator core 023 is embedded in the middle of the groove. This structure has the same drawbacks: in order to realize the forming of the flat wire winding from the aspect of process, the stator core cannot be made into a whole due to the existence of the pole shoes at the two ends, and all the stator cores 021, 022 and 023 can be assembled only after the flat wire winding is installed, otherwise, the flat wire winding cannot be installed.
Disclosure of Invention
The invention provides a stator core assembly, a stator assembly and a driving motor.
In order to achieve the purpose, the invention provides the following technical scheme:
a stator core assembly comprises a first stator end plate, a second stator end plate and a plurality of stator cores; wherein, the first and the second end of the pipe are connected with each other,
the first stator end plate and the second stator end plate are arranged oppositely, and each of the first stator end plate and the second stator end plate comprises a central area, a middle area arranged around the central area and an edge area arranged around the middle area;
the plurality of stator cores are clamped between the middle areas of the first stator end plate and the second stator end plate, and are arranged at intervals around the center areas of the first stator end plate and the second stator end plate;
wherein, first stator end plate orientation one side of stator core have with a plurality of first fixed knot of stator core one-to-one constructs, second stator end plate orientation one side of stator core have with a plurality of second fixed knot of a plurality of stator core one-to-one constructs, every stator core is through corresponding first fixed knot constructs and second fixed knot constructs the cooperation location.
Among the above-mentioned stator core assembly, a plurality of stator core presss from both sides between the middle zone of first stator end plate and second stator end plate, and center region interval arrangement around first stator end plate and second stator end plate, every stator core can be fixed a position through the cooperation of the first fixed knot structure on the first stator end plate and the second fixed knot structure on the second stator end plate, above-mentioned stator core's structure can be an overall structure, need not set up the pole shoe at both ends, can directly realize the coiling of flat line winding on the stator core, can conveniently assemble, simplify the preparation technology, stator core is direct fixed through the centre gripping of first stator end plate and second stator end plate simultaneously, be favorable to transmitting the moment of torsion.
Optionally, a central region and a middle region of the first stator end plate protrude toward the plurality of stator cores, and the first fixing structure is a first fixing groove or a first protrusion located in the middle region of the first stator end plate and engaged with an end of the stator core;
the central area and the middle area of the second stator end plate face a plurality of stator core protrusions, and the second fixing structure is located in the middle area of the second stator end plate and is in a second fixing groove or a second protrusion matched with the end portion of the stator core.
Optionally, the material of the first stator end plate and the second stator end plate is a magnetically permeable material.
Optionally, a first magnetism isolating groove is formed between every two adjacent first fixing structures on one side, facing the stator core, of the first stator end plate; and a second magnetic isolation groove is formed between every two adjacent second fixing structures on one side of the second stator end plate, which faces the stator core.
Optionally, the distance from the bottom of the first magnetism isolating groove to the side, away from the stator core, of the first stator end plate is less than or equal to 1mm, and the distance from the bottom of the second magnetism isolating groove to the side, away from the stator core, of the second stator end plate is less than or equal to 1mm; alternatively, the first and second electrodes may be,
and the materials on the inner walls of the first magnetism isolating groove and the second magnetism isolating groove are not magnetic.
Optionally, the material of the first stator end plate and the second stator end plate is a steel plate.
Optionally, each stator core is formed by laminating a plurality of magnetic conductive sheets arranged along the central region toward the edge region.
Optionally, the magnetic conductive sheet is made of a high-permeability silicon steel sheet.
The embodiment of the invention also provides a stator assembly which comprises any one of the stator core assemblies provided in the technical scheme, a flat wire winding component, a shell, a power lead-out wire component and a bearing support; wherein the content of the first and second substances,
the flat wire winding assembly comprises a plurality of windings which correspond to the plurality of stator cores one by one, and each winding is wound on the corresponding stator core;
the bearing support penetrates through the central regions of the first stator end plate and the second stator end plate, and the side wall of the bearing support is in sealing fit with the first stator end plate and the second stator end plate;
the shell is arranged around the flat wire winding assembly, the shell is in sealing fit with the edge area of the first stator end plate and the edge area of the second stator end plate, the shell, the first stator end plate, the second stator end plate and the bearing support enclose a sealed cavity, and a wiring hole for communicating the sealed cavity with the outside is formed in the shell;
the power lead-out wire subassembly includes many power leads, many power leads pass through the wiring hole stretches into in the sealed cavity.
The embodiment of the invention also provides a driving motor, which comprises the stator assembly provided by the technical scheme, a first rotor, a second rotor, a bearing and a rotating shaft; wherein the content of the first and second substances,
the first rotor is positioned on one side, away from the stator core, of the first stator end plate;
the second rotor is positioned on one side of the second stator end plate, which is far away from the stator core;
the bearing penetrates through the bearing support, and the outer side wall of the bearing is fixedly connected with the bearing support;
the rotating shaft penetrates through the first rotor, the second rotor and the bearing, and the side wall of the rotating shaft is fixedly connected with the inner side wall of the first rotor, the second rotor and the bearing.
Drawings
Fig. 1 is a schematic structural diagram of a stator core in the prior art;
FIG. 2 is a schematic structural diagram of a stator core in the prior art;
fig. 3 is a schematic structural diagram of a stator core assembly according to an embodiment of the present invention;
fig. 4 is an exploded view of a stator core assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first stator end plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second stator end plate according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a stator core according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a stator assembly according to an embodiment of the present invention;
FIG. 9 is an exploded view of a stator assembly according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a driving motor according to an embodiment of the present invention;
fig. 11 is an exploded view of a driving motor according to an embodiment of the present invention.
An icon:
11-a first stator end plate; 111-a first via; 112-a first fixed structure; 1121 — first fixing groove; 113-a first magnetism isolating groove; 12-a second stator end plate; 121-a second via; 122-a second fixed structure; 1221-a second fixing groove; 123-a second magnetism isolating groove; 2-a stator core; 21-magnetic conductive sheet; 3-a flat wire winding assembly; 31-a winding; 4-bearing support; 5-a shell; 51-wiring holes; 6-a power takeoff assembly; 61-a sealing plate; 62-a power outlet; 71-a first rotor; 72-a second rotor; 8-a bearing; 9-a rotating shaft; 100-a stator core assembly; 200-a stator assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3 and 4, the present invention provides a stator core assembly, which includes a first stator end plate 11, a second stator end plate 12, and a plurality of stator cores 2; wherein the content of the first and second substances,
the first stator end plate 11 and the second stator end plate 12 are arranged oppositely, and the first stator end plate 11 and the second stator end plate 12 respectively comprise a central area, a middle area arranged around the central area and an edge area arranged around the middle area; as shown in fig. 4, the first stator end plate 11 has a center region A1, a middle region B1, and an edge region C1, and the second stator end plate 12 has a center region A2, a middle region B2, and an edge region C2;
the plurality of stator cores 2 are sandwiched between the middle area A1 of the first stator end plate 11 and the middle area A2 of the second stator end plate 12, and the plurality of stator cores 2 are arranged at intervals around the central areas of the first stator end plate 11 and the second stator end plate 12;
wherein, first stator end plate 11 has a plurality of first fixed knot construct 112 with a plurality of stator core 2 one-to-one towards one side of stator core 2, and second stator end plate 12 has a plurality of second fixed knot construct 122 with a plurality of stator core 2 one-to-one towards one side of stator core 2, and every stator core 2 is fixed a position through the first fixed knot construct 112 and the second fixed knot construct 122 cooperation that correspond.
In the stator core assembly provided in the above embodiment of the present invention, the plurality of stator cores 2 are sandwiched between the middle region of the first stator end plate 11 and the middle region of the second stator end plate 12, and are arranged at intervals around the center regions of the first stator end plate 11 and the second stator end plate 12, each stator core may be positioned by matching the first fixing structure on the first stator end plate and the second fixing structure on the second stator end plate, the structure of the stator core may be an integral structure, and pole shoes at both ends are not required to be provided, and the stator core 2 may be directly wound with a flat wire winding, which may facilitate assembly and simplify a manufacturing process, and meanwhile, the stator core 2 is directly clamped and fixed by the first stator end plate 11 and the second stator end plate 12, which is beneficial to torque transmission.
Specifically, as shown in fig. 4 and 5, the central region A1 and the middle region B1 of the first stator end plate 11 are protruded toward the plurality of stator cores 2, and the first fixing structure 112 may be a first fixing groove 1121 or a first protrusion which is located in the middle region B1 of the first stator end plate 11 and is fitted to an end of the stator core 2; as shown in fig. 4 and 6, the central region A2 and the middle region B2 of the second stator end plate 12 are protruded toward the plurality of stator cores 2, and the second fixing structure 122 may be a second fixing groove 1221 or a second protrusion located in the middle region B2 of the second stator end plate 12 and engaged with an end of the stator core 2. For example, as shown in fig. 3 and 4, the first stator end plate and the second stator end plate may clamp the plurality of stator cores along the arrangement direction of the first stator end plate and the second stator end plate, one end of the stator core may be engaged with the first fixing groove or the first protrusion on the first stator end plate, and the other end may be engaged with the second fixing groove or the second protrusion on the second stator end plate, so as to position the stator core.
In the embodiment of the invention, the first stator end plate and the second stator end plate can be made of magnetic conductive materials, so that the first stator end plate and the second stator end plate can conduct magnetism, and the output performance of the motor can be improved. Specifically, the first stator end plate and the second stator end plate may be made of steel plates, or may also be made of soft magnetic material SMC, which is not limited herein and may be selected according to actual situations. And when first stator end plate 11 and second stator end plate 12 are the steel sheet, steel sheet mechanical properties and electromagnetic properties are all higher than soft magnetic material, can improve the mechanical properties and the electromagnetic properties of stator core assembly, are favorable to stator structure's arranging.
Specifically, the material of the first stator end plate 11 and the second stator end plate 12 may be high permeability low carbon steel, cold rolled or hot rolled silicon steel electrical steel, or the like, or may be other materials, which is not limited herein.
Alternatively, the first stator end plate 11 and the second stator end plate 12 may be configured as a non-magnetic structure, for example, by replacing carbon fiber or glass fiber materials, which may enhance the mechanical strength of the first stator end plate 11 and the second stator end plate 12 compared to the soft magnetic material SMC.
In the embodiment of the present invention, when the material of the first stator end plate 11 and the second stator end plate 12 is a magnetic conductive material, as shown in fig. 4, 5 and 6, a first magnetic isolation slot 113 may be formed between every two adjacent first fixing structures 112 on a side of the first stator end plate 11 facing the stator core 2, and a second magnetic isolation slot 123 is formed between every two adjacent second fixing structures 122 on a side of the second stator end plate 12 facing the stator core 2. The first magnetism isolating groove 113 and the second magnetism isolating groove 123 can isolate the magnetic induction lines of two adjacent poles, and reduce the magnetic leakage of the stator magnetic field at the position.
Specifically, in order to cut off the magnetic induction lines, the thicknesses of the first stator end plate 11 and the second stator end plate 12 at the first magnetism isolating groove 113 and the second magnetism isolating groove 123 need to be thin, wherein the distance from the bottom of the first magnetism isolating groove 113 to the side of the first stator end plate far away from the stator core may be set to be less than or equal to 1mm, and the distance from the bottom of the second magnetism isolating groove 123 to the side of the second stator end plate far away from the stator core may be set to be less than or equal to 1mm, so that the thicknesses of the first stator end plate 11 and the second stator end plate 12 at the first magnetism isolating groove and the second magnetism isolating groove are as thin as possible. The first magnetic isolation groove 113 may directly penetrate the first stator end plate 11, and the second magnetic isolation groove 123 may directly penetrate the second stator end plate 12.
Optionally, in order to block the magnetic induction lines, the material at the inner walls of the first magnetism isolating groove and the second magnetism isolating groove is not magnetic. For example, the first and second magnetism isolating grooves 113 and 123 are made to be naturally non-magnetic by means of heat treatment, and the leakage flux of the stator magnetic field at the position is reduced by the first and second magnetism isolating grooves 113 and 123.
In the embodiment of the present invention, as shown in fig. 7, each stator core may be formed by laminating a plurality of magnetic conductive sheets 21 arranged along the central region toward the edge region, so as to improve the magnetic conductivity of the stator core.
Specifically, the plurality of magnetic conductive sheets 21 in the stator core 2 may be assembled together by welding, dotting, self-adhesive sheet or glue bonding, or the like before lamination.
Specifically, the material of the magnetic conductive sheet 21 may be a high magnetic conductive silicon steel sheet, or may also be a soft magnetic material SMC.
The plurality of stator cores may be disposed around central regions of the first and second stator end plates at equal intervals.
An embodiment of the present invention further provides a stator assembly, as shown in fig. 8 and fig. 9, including any one of the stator core assemblies 100 provided in the above technical solutions.
Specifically, as shown in fig. 8 and 9, the stator assembly further includes a flat wire winding assembly 3, a housing 5, a power lead-out wire assembly 6, and a bearing support 4; wherein the content of the first and second substances,
the flat wire winding assembly 3 includes a plurality of windings 31 corresponding to the plurality of stator cores 2 one to one, and each winding 31 is wound on the corresponding stator core 2; the flat wire winding assembly 3 is made of conductive metal and is wound in a specific mode;
the bearing support 4 penetrates through the central areas of the first stator end plate 11 and the second stator end plate 12, and the side wall of the bearing support 4 is in sealing fit with the first stator end plate 11 and the second stator end plate 12; wherein, the central area of the first stator end plate can be provided with a first through hole 111, the central area of the second stator end plate can be provided with a second through hole 121, the bearing support 4 can be in sealing fit with the first stator end plate and the second stator end plate by penetrating through the first through hole 111 and the second through hole 121, and the bearing support 4 can support the outer ring of the bearing in the driving motor and support the rotor;
the shell 5 is arranged around the flat wire winding assembly 3, the shell 5 is in sealing fit with the edge area C1 of the first stator end plate 11 and the edge area C2 of the second stator end plate 12, the shell 5, the first stator end plate 11, the second stator end plate 12 and the bearing support 4 enclose a sealed cavity, and the shell 5 is provided with a wiring hole 51 for communicating the sealed cavity with the outside; wherein, the casing 5 can be provided with an oil inlet and an oil outlet, which can realize the circulation of cooling oil.
The power lead-out wire assembly 6 may include a plurality of power leads 62, the plurality of power leads 62 extending into the sealed cavity through the wire connection hole 51; the power outgoing line 62 is used for transmitting alternating current of the flat wire winding assembly 3, and the alternating current is introduced into the flat wire winding assembly 3, so that a rotating magnetic field of the stator can be realized. The power lead-out wire 6 further includes a sealing plate 61 for sealing the wire connection hole 51.
Among the above-mentioned stator assembly, first stator end plate 11, second stator end plate 12, casing 5 and bearing support 4 can cooperate and form a sealed chamber, compare with the technical scheme that oil-cooled motor need set up the sealing specially among the prior art and just can seal, first stator end plate 11 and second stator end plate 12 can play sealed effect as the monoblock end plate, and then can cancel the setting of sealing, fill the coolant oil in sealed intracavity, flat line winding subassembly 3 and stator core 2 can soak in the coolant oil, form an oily formula stator assembly, compare with natural cooling's technical scheme among the prior art, the cooling capacity is stronger.
The embodiment of the present invention further provides a driving motor, as shown in fig. 10 and fig. 11, including any one of the stator assemblies 200 provided in the above technical solutions.
Specifically, as shown in fig. 10 and 11, the driving motor further includes a first rotor 71, a second rotor 72, a bearing 8, and a rotating shaft 9; wherein the first rotor 71 may be located at a side of the first stator end plate 11 away from the stator core 2; the second rotor 72 may be located on a side of the second stator end plate 12 remote from the stator core 2; the bearing 8 can penetrate through the bearing support 4, and the outer side wall of the bearing 8 is fixedly connected with the bearing support 4; the rotating shaft 9 may penetrate through the first rotor 71, the second rotor 72 and the bearing 8, and a side wall of the rotating shaft 9 may be fixedly connected with inner side walls of the first rotor 71, the second rotor 72 and the bearing 8.
In the driving motor, a first rotor 71 and a second rotor 72 are used for generating torque, and permanent magnets are arranged in the first rotor 71 and the second rotor 72 and are induced with a rotating magnetic field of a stator assembly to generate output torque; the rotating shaft 9 is used for outputting the torque of the first rotor 71 and the second rotor 72, and the rotating shaft 9 fixes the first rotor 71 and the second rotor 72 into a whole; the bearing 8 is used to support the first rotor 71 and the second rotor 72.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A stator core assembly is characterized by comprising a first stator end plate, a second stator end plate and a plurality of stator cores;
the first stator end plate and the second stator end plate are arranged oppositely, and each of the first stator end plate and the second stator end plate comprises a central area, a middle area arranged around the central area and an edge area arranged around the middle area;
the plurality of stator cores are clamped between the middle areas of the first stator end plate and the second stator end plate, and are arranged at intervals around the center areas of the first stator end plate and the second stator end plate;
wherein, first stator end plate orientation one side of stator core have with a plurality of first fixed knot of stator core one-to-one construct, second stator end plate orientation one side of stator core have with a plurality of second fixed knot of a plurality of stator core one-to-one construct, every stator core is through corresponding first fixed knot constructs and second fixed knot constructs the cooperation location.
2. The stator core assembly of claim 1, wherein the central region and the middle region of the first stator end plate are raised toward the plurality of stator cores, and the first fixing structure is a first fixing groove or a first protrusion located in the middle region of the first stator end plate and engaged with an end of the stator core;
the central area and the middle area of the second stator end plate face a plurality of stator core protrusions, and the second fixing structure is located in the middle area of the second stator end plate and is in a second fixing groove or a second protrusion matched with the end portion of the stator core.
3. The stator core assembly of claim 1 wherein the material of the first stator end plate and the second stator end plate is a magnetically conductive material.
4. The stator core assembly of claim 3 wherein a first magnetism isolating slot is provided between every two adjacent first fixing structures on a side of the first stator end plate facing the stator core; and a second magnetic isolation groove is formed between every two adjacent second fixing structures on one side of the second stator end plate, which faces the stator core.
5. The stator core assembly of claim 4, wherein the distance between the bottom of the first flux barrier slot and the side of the first stator end plate away from the stator core is less than or equal to 1mm, and the distance between the bottom of the second flux barrier slot and the side of the second stator end plate away from the stator core is less than or equal to 1mm; alternatively, the first and second electrodes may be,
and the materials on the inner walls of the first magnetism isolating groove and the second magnetism isolating groove are not magnetic.
6. The stator core assembly of claim 3 wherein the material of the first and second stator end plates is sheet steel.
7. The stator core assembly of any one of claims 1-6 wherein each of said stator cores is laminated with a plurality of flux plates arranged along said central region toward said edge region.
8. The stator core assembly of claim 7 wherein the magnetically permeable sheet is a high magnetically permeable silicon steel sheet.
9. A stator assembly comprising the stator core assembly of any of claims 1-8, further comprising a flat wire winding assembly, a housing, a power takeoff wire assembly, and a bearing support; wherein, the first and the second end of the pipe are connected with each other,
the flat wire winding assembly comprises a plurality of windings which are in one-to-one correspondence with the plurality of stator cores, and each winding is wound on the corresponding stator core;
the bearing support penetrates through the central regions of the first stator end plate and the second stator end plate, and the side wall of the bearing support is in sealing fit with the first stator end plate and the second stator end plate;
the shell is arranged around the flat wire winding assembly, the shell is in sealing fit with the edge area of the first stator end plate and the edge area of the second stator end plate, the shell, the first stator end plate, the second stator end plate and the bearing support enclose a sealed cavity, and a wiring hole for communicating the sealed cavity with the outside is formed in the shell;
the power lead-out wire assembly comprises a plurality of power leads, and the power leads extend into the sealing cavity through the wiring holes.
10. A drive motor comprising the stator assembly of claim 9, further comprising a first rotor, a second rotor, a bearing, and a shaft; wherein the content of the first and second substances,
the first rotor is positioned on one side, away from the stator core, of the first stator end plate;
the second rotor is positioned on one side, far away from the stator core, of the second stator end plate;
the bearing penetrates through the bearing support, and the outer side wall of the bearing is fixedly connected with the bearing support;
the rotating shaft penetrates through the first rotor, the second rotor and the bearing, and the side wall of the rotating shaft is fixedly connected with the inner side wall of the first rotor, the second rotor and the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211273360.XA CN115566818A (en) | 2022-10-18 | 2022-10-18 | Stator core assembly, stator assembly and driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211273360.XA CN115566818A (en) | 2022-10-18 | 2022-10-18 | Stator core assembly, stator assembly and driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115566818A true CN115566818A (en) | 2023-01-03 |
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ID=84746858
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| CN202211273360.XA Pending CN115566818A (en) | 2022-10-18 | 2022-10-18 | Stator core assembly, stator assembly and driving motor |
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