CN113364158B - Motor stator and motor convenient for processing outer circular surface and processing and assembling process thereof - Google Patents
Motor stator and motor convenient for processing outer circular surface and processing and assembling process thereof Download PDFInfo
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- CN113364158B CN113364158B CN202110569041.2A CN202110569041A CN113364158B CN 113364158 B CN113364158 B CN 113364158B CN 202110569041 A CN202110569041 A CN 202110569041A CN 113364158 B CN113364158 B CN 113364158B
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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
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a motor stator convenient for processing an outer circular surface, which comprises a stator core, wherein an insulating layer is arranged on the outer surface of the stator core, a metal shell is arranged on the outer surface of the insulating layer, and the insulating layer, the stator core and the metal shell are integrally injection molded by adopting a metal insert injection molding process. Also disclosed is a motor based on the motor stator. In addition, a motor machining and assembling process is also disclosed. According to the invention, the stator core and the metal shell are taken as inserts to be placed in a die, and the insulating layer integrated with the stator core and the metal shell is formed through an injection molding process, so that the stator core is double-insulated, and the safety requirements are met. Meanwhile, the metal shell is positioned on the outermost layer, so that the outer circular surface of the stator is convenient to finish, the concentricity of the inner hole and the outer circular surface of the stator can be accurately controlled, the air gap value required between the stator and the rotor is further obtained, and meanwhile, the quality problem of mechanical interference between the stator and the rotor is not easy to occur.
Description
Technical Field
The invention belongs to the field of motor equipment, and particularly relates to a motor stator, a motor and a processing and assembling process thereof, wherein the motor stator and the motor are convenient for processing an outer circular surface.
Background
In order to ensure power density and efficiency, the air gap between the stator and the rotor of a high-voltage brushless motor, especially a miniature high-voltage switched reluctance motor, is generally 0.2mm-0.35mm, and the axial length of the high-voltage brushless motor is generally more than 60mm, which results in extremely high concentricity requirements for the stator and the rotor in the assembly process. In addition, because of the requirement of safety regulation, the stator and the rotor are all required to be made of double insulation structures, the double insulation structure of the stator in the prior art is generally made by coating insulation materials on the outer surface of the stator, or by adding a circle of insulation materials between the outer circle of the stator and the motor shell, and although the measures solve the double insulation problem of the stator, the air gap uniformity between the stator and the rotor is influenced. Specifically, if the mode of coating insulating materials on the outer surface of the stator is adopted, because the general insulating materials are made of organic polymer materials, concentricity of an inner hole of the stator and an outer circular surface of the stator is difficult to control in a finish machining mode, so that the concentricity of a central axis of the inner hole of the stator and the central axis of the motor bracket cannot meet the precision requirement when the stator is assembled with the motor bracket, and the rotor is matched with a bearing chamber of the motor bracket through a bearing, so that the concentricity of an outer circle of the rotor and the inner hole of the stator is difficult to control, and a required uniform air gap value is difficult to obtain. If the mode of arranging insulating materials between the outer circle of the stator and the motor shell is adopted, the problems are still existed, the inner circle of the insulating materials is difficult to be matched with the outer circle of the stator in a finish machining mode, in addition, the assembly process steps are required to be added, and errors are easy to accumulate. In the prior art, the concentricity of the stator and the rotor cannot be accurately controlled, and the designed air gap between the stator and the rotor is very small, so that mechanical interference (commonly called iron wiping or bore sweeping) between the stator and the rotor occurs during use, and the high-voltage brushless motor belongs to the quality problem.
In addition, in the case of obtaining a small air gap as much as possible, since the gap between the stator and the rotor is small, it is required that the stator cannot be radially offset with respect to the rotor during long-term operation, otherwise mechanical interference between the stator and the rotor is easily caused, and the motor is disabled. However, in the prior art, because the strength of the insulating layer of the organic polymer material outside the stator is relatively small, the organic polymer material is easy to locally deform relative to the stator under the action of external force, so that the stator is radially offset, and the stator and the rotor may be mechanically interfered.
Disclosure of Invention
The invention aims to provide a motor stator and a motor convenient for processing an outer circular surface and a processing and assembling process thereof, which can effectively solve the problem that the outer circular surface of the stator is difficult to finish to ensure the high concentricity of the inner ring and the outer ring of the stator in order to meet the double insulation requirement in the prior art, further can improve the concentricity of the stator and the rotor, and ensure that a required uniform small air gap can be obtained between the stator and the rotor.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a motor stator convenient to outer disc processing, includes stator core, stator core surface is equipped with the insulating layer, the insulating layer surface is equipped with metal casing, the insulating layer adopts metal insert injection molding technology to mould plastics as an organic wholely with stator core and metal casing.
Preferably, the stator core includes a yoke portion and a tooth portion, the insulation layer includes an end plate insulation layer, a bracket insulation layer and a winding insulation layer, the end plate insulation layer covers upper and lower end surfaces of the yoke portion, the bracket insulation layer covers an outer ring surface of the yoke portion, and the winding insulation layer covers both side surfaces of the tooth portion and an inner ring surface of the yoke portion. According to the structure of the stator core, the insulating layer formed by injection molding comprises an end plate insulating layer, a bracket insulating layer and a winding insulating layer, so that the insulating layer can be covered in place except for the inner ring surface of the stator core, and the double-insulation safety rule requirement is met.
Preferably, the metal shell surrounds the stator core, the metal shell is provided with two circles, and an annular open slot is formed in a bracket insulating layer between the two circles of the metal shell. The annular open slot is arranged, so that the use of materials of the metal shell and the insulating layer can be effectively reduced, and the material cost is reduced; on the other hand, the heat dissipation effect of the stator can be improved.
Preferably, the support insulating layers at two sides of the annular open groove are respectively provided with an annular bulge along the radial direction, and the outer circular surface of the annular bulge is flush with the outer circular surface of the metal shell. On one hand, the annular bulge can completely isolate the metal shell from the stator core, so that the insulation effect is ensured; on the other hand, the injection molding connection area of the metal shell and the insulating layer is increased, and the connection stability of the metal shell and the insulating layer can be improved.
Preferably, a plurality of reinforcing ribs are uniformly arranged in the annular opening groove along the circumferential direction. This increases the strength of the insulating layer while maintaining the above-described advantageous effects.
Preferably, the upper surface of one circle of metal shell positioned above is flush with the upper surface of the insulating layer, and the lower surface of the other circle of metal shell positioned below is flush with the lower surface of the insulating layer. Thus, the subsequent finishing operation on the metal shell is convenient, and in addition, for the metal shell with the same size, the material use of the insulating layer can be correspondingly reduced by arranging the metal shell at the upper end part and the lower end part (because the size of the annular open slot can be designed to be larger), so that the production cost is reduced.
Preferably, the strength of the metal shell is greater than the strength of the insulating layer. Therefore, the metal shell is not easy to deform under the action of external force, so that the strength and rigidity of the whole structure are increased, radial deflection of the stator can be avoided, mechanical interference between the stator and the rotor is avoided, and the running stability of the equipment is maintained.
In order to solve the technical problems, the invention also adopts the following technical scheme: the motor comprises a stator, a rotor and a motor support, wherein the stator is fixedly connected to the motor support, the rotor is rotationally connected to the motor support, and the stator is a motor stator which is convenient for processing an outer circular surface and is in any one of the technical schemes. Because the motor adopts the stator in the scheme, the concentricity of the stator and the rotor can be accurately controlled, and the required air gap value between the stator and the rotor is further obtained, so that the motor has higher motor power density and efficiency, and the application range and the use stability of the motor are effectively enlarged.
In order to solve the technical problems, the invention also adopts the following technical scheme: a motor machining and assembling process comprises the following steps:
s10: manufacturing a stator core and a metal shell;
s20: placing and positioning a stator core and a metal shell as inserts in an injection mold;
s30: using an injection molding material with insulativity to extrude into an injection mold, and forming an insulation layer integrated with the stator core and the metal shell through an injection molding process;
s40: clamping the inner ring surface of the stator core for positioning, and then carrying out finish turning and/or fine grinding on the outer ring surface of the metal shell to manufacture a motor stator;
s50: and fixedly mounting the motor stator on a motor bracket, and rotatably mounting the motor rotor on the motor bracket through a motor shaft.
Preferably, step S31 is further included between steps S30 and S40: and carrying out finish turning and/or finish grinding on the inner ring surface of the stator core. Further improves the concentricity of the inner ring of the stator and the outer ring of the rotor, and obtains the required uniform air gap value.
Compared with the prior art, the invention has the following beneficial effects: the stator core and the metal shell are used as inserts to be placed in a die, and an insulating layer integrated with the stator core and the metal shell is formed through an injection molding process, namely, the insulating layer, the stator core and the metal shell are molded into a whole through the injection molding process, so that the structure is stable in connection, the stator core is double-insulated, and the safety requirements are met. Meanwhile, the metal shell is positioned on the outermost layer, namely the outermost layer of the stator is made of metal, so that the outer circular surface of the stator is convenient to finish (finish turning or finish grinding or matching of two machining modes), the concentricity of an inner hole and an outer circle of the stator can be accurately controlled, further the subsequent assembly operation is convenient, the concentricity of an inner circle of the stator and an outer circle of a rotor can be accurately controlled, the uniform air gap value required between the stator and the rotor is convenient to obtain, the air gap value is small enough to improve the power of a motor, and meanwhile, the quality problem of mechanical interference between the stator and the rotor is difficult to occur.
Drawings
A schematic structural diagram of a motor stator that facilitates processing of an outer circumferential surface is provided in the first embodiment of fig. 1;
an exploded view of a motor stator for facilitating the processing of an outer circumferential surface is provided in the first embodiment of fig. 2;
a cross-sectional view of a motor stator that facilitates machining of an outer circumferential surface is provided in the first embodiment of fig. 3;
fig. 4 provides a cross-sectional view of a motor according to a second embodiment.
The stator comprises a stator core, a yoke part, a tooth part, an insulating layer, an end plate insulating layer, a bracket insulating layer, an annular open groove, an annular protrusion, a winding insulating layer, a metal shell, a motor bracket, a rotor, a motor shaft, a bearing, an air gap and a heat dissipation fan blade.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. In addition, the meaning of "plurality" in the present invention means at least two, for example, two, three, etc., unless otherwise specifically defined.
Embodiment one: as shown in fig. 1, the motor stator convenient for processing the outer circular surface provided by the embodiment comprises a stator core 1, wherein an insulating layer 2 is arranged on the outer surface of the stator core 1, a metal shell 3 is arranged on the outer surface of the insulating layer 2, the insulating layer 2 and the stator core 1 and the metal shell 3 are integrally injection-molded by adopting a metal insert injection molding process, specifically, the stator core 1 and the metal shell 3 are taken as inserts to be placed in an injection mold, and the insulating layer 2 integrated with the stator core 1 and the metal shell 3 is formed by the injection molding process, so that the structural connection is stable, and meanwhile, the stator core 1 is double-insulated, so that the safety requirements are met. In addition, because the metal shell 3 is located in the outermost layer, namely the outermost layer of the motor stator is made of metal, the outer circular surface of the stator is convenient to finish (finish turning or finish machining or matching of two machining modes), the concentricity of an inner hole and an outer circle of the stator can be accurately controlled, the subsequent assembly operation is convenient, the strength and the rigidity of the integral structure of the stator are enhanced, the concentricity of an inner circle of the stator and an outer circle of a rotor can be accurately controlled, the uniform air gap value needed between the stator and the rotor is convenient to obtain, the air gap value is small enough to improve the power of the motor, and meanwhile, the quality problem of mechanical interference of the stator and the rotor is difficult to occur.
As shown in fig. 2 and 3, the stator core 1 in the present embodiment includes the yoke 10 and the tooth 11, the insulating layer 2 includes the end plate insulating layer 20, the bracket insulating layer 21, and the winding insulating layer 22, the end plate insulating layer 20 covers the upper and lower end faces of the yoke 10, the bracket insulating layer 21 covers the outer ring face of the yoke 10, and the winding insulating layer 22 covers both side faces of the tooth 11 and the inner ring face of the yoke 10. Thus, according to the structure of the stator core 1, the insulation layer 2 formed by injection molding comprises the end plate insulation layer 20, the bracket insulation layer 21 and the winding insulation layer 22, so that the insulation layer 2 can cover in place except the inner ring surface of the stator core 1, and the double-insulation safety requirement is met.
The metal casing 3 in this embodiment is disposed around the stator core 1, the metal casing 3 has two rings, and the annular opening groove 210 is provided on the bracket insulating layer 21 between the two rings of metal casings 3. The annular open slot 210 can effectively reduce the use of materials of the metal shell 3 and the insulating layer 2 and reduce the material cost on one hand; on the other hand, the heat dissipation effect of the stator can be improved. Further, in this embodiment, the support insulating layers 21 on both sides of the annular opening groove 210 are provided with annular protrusions in the radial direction, and it is understood that the annular protrusions may be integrally formed during injection molding, and the outer circumferential surface of the annular protrusions is flush with the outer circumferential surface of the metal housing 3. On one hand, the annular bulge can completely isolate the metal shell 3 from the stator core 1, so that the insulation effect is ensured; on the other hand, the arrangement increases the injection molding connection area of the metal shell 3 and the insulating layer 2, and can improve the connection stability of the metal shell 3 and the insulating layer 2. In addition, in order to secure the strength of the insulating layer 2, a plurality of reinforcing ribs (not shown) may be uniformly provided in the circumferential direction in the annular open groove 210, so that the strength of the insulating layer 2 can be increased while maintaining the above-described advantageous effects.
For facilitating subsequent finishing, in this embodiment, the upper surface of the upper ring of metal shell 3 is flush with the upper surface of the insulating layer 2, and the lower surface of the lower ring of metal shell 3 is flush with the lower surface of the insulating layer 2, and in addition, for the metal shells 3 with the same size, the use of materials of the insulating layer 2 can be correspondingly reduced (because the size of the annular opening slot 210 can be designed to be larger) by arranging the metal shells 3 at the upper end and the lower end, so that the production cost is reduced.
In this embodiment, the strength of the metal shell 3 is larger than that of the insulating layer 2, and of course, the strength of the metal material is generally larger than that of the insulating layer 2, so that a wide selection range is provided for material selection. The advantages of this arrangement are that: the metal shell 3 has high strength and rigidity, is not easy to deform under the action of external force, and can avoid causing radial deflection of the stator, thereby avoiding causing mechanical interference between the stator and the rotor and keeping the running stability of the equipment.
Embodiment two: the embodiment provides a motor, as shown in fig. 4, the motor includes a motor stator, a motor rotor 5 and a motor support 4, the motor stator is fixedly connected on the motor support 4 through bolts, the motor rotor 5 is fixedly connected on a motor shaft 6, both ends all are equipped with bearing chambers around the motor support 4, the bearing chambers are equipped with bearings 7, the front and back ends of the motor shaft 6 are respectively connected on the bearings 7 at corresponding sides in a rotating way, an air gap 8 is provided between the stator and the motor rotor 5, and a heat dissipation fan blade 9 is also arranged inside the motor. The stator is the motor stator which is convenient for processing the outer circular surface and provided by the embodiment. Because the motor adopts the stator in the scheme, the concentricity of the stator and the rotor can be accurately controlled, and the required air gap value between the stator and the motor rotor 5 is further obtained, so that the motor has higher motor efficiency, and the application range and the use stability of the motor are effectively enlarged.
Embodiment III: the present embodiment provides a motor machining and assembling process, which is described with reference to the motor in fig. 4, and includes the following steps:
s10: manufacturing a stator core 1 and a metal shell 3; in this embodiment, the silicon steel sheet is manufactured by stamping, and then the silicon steel sheet is laminated and pressed into the stator core 1 by the fastener, and the metal housing 3 is manufactured by adopting a die casting process, it will be understood that the metal housing 3 can also be manufactured by adopting processes such as stretching, powder metallurgy, extrusion and the like.
S20: placing and positioning the stator core 1 and the metal shell 3 as inserts in an injection mold;
s30: using an injection molding material with insulation to extrude into an injection mold, and forming an insulation layer 2 integrated with the stator core 1 and the metal shell 3 through an injection molding process; in this embodiment, the stator core 1, the metal housing 3 and the insulating layer 2 are integrally formed by an injection molding process by extruding an injection molding material in a molten state and having insulating properties into a mold cavity of an injection mold.
S40: clamping the inner ring surface of the stator core 1 for positioning, and then carrying out finish turning and/or finish grinding on the outer ring surface of the metal shell 3 to manufacture a motor stator; in this embodiment, the outer surface of the metal housing 3 is first finish machined, and then it is determined whether to perform finish machining or not according to the required air gap value.
S50: the motor stator is fixedly mounted to the motor support 4, and the motor rotor 5 is rotatably mounted to the motor support 4 via the motor shaft 6. It will be appreciated that in this step, the end face of the motor support 4 is also required to be finished to ensure good stability, but this step is performed in a manner known in the art and will not be described in detail.
Further, step S31 may be added between steps S30 and S40: and turning the inner ring surface of the stator core 1. Therefore, the concentricity of the inner ring of the stator and the outer ring of the rotor can be further improved, and a more accurate air gap value is obtained.
According to the motor machining and assembling process, the stator iron core 1 and the metal shell 3 are used as inserts to be placed into an injection mold, the insulating layer 2 integrated with the stator iron core 1 and the metal shell 3 is formed through the injection molding process, namely, the insulating layer 2, the stator iron core 1 and the metal shell 3 are molded into a whole through the injection molding process, the structural connection is stable, meanwhile, the stator iron core 1 is double-insulated, and the safety requirement is met. The metal shell 3 positioned at the outermost layer is subjected to finish machining (finish turning machining or finish machining or matching of two machining modes), so that compared with the insulating material coated on the outer surface of the stator core 1 in the prior art, the metal is more convenient to carry out finish machining operation, the concentricity of an inner hole and an outer circle of the stator can be accurately controlled, the subsequent assembly operation is facilitated, the concentricity of an inner circle and an outer circle of a rotor of the stator can be accurately controlled, the air gap value required between the stator and the rotor is conveniently obtained, and meanwhile, the quality problem of mechanical interference between the stator and the rotor is not easy to occur.
The above embodiments are merely examples of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present invention are included in the scope of the present invention.
Claims (6)
1. The utility model provides a motor stator convenient to outer disc processing, includes stator core, its characterized in that: the outer surface of the stator core is provided with an insulating layer, the outer surface of the insulating layer is provided with a metal shell, and the insulating layer, the stator core and the metal shell are molded into a whole by adopting a metal insert injection molding process; the stator core comprises a yoke part and a tooth part, wherein the insulating layer comprises an end plate insulating layer, a bracket insulating layer and a winding insulating layer, the end plate insulating layer covers the upper end face and the lower end face of the yoke part, the bracket insulating layer covers the outer ring face of the yoke part, and the winding insulating layer covers the side faces of the two sides of the tooth part and the inner ring face of the yoke part; the metal shell is arranged around the stator core, the metal shell is provided with two circles, and an annular open slot is formed in a bracket insulating layer between the two circles of the metal shell; the upper surface of one circle of metal shell positioned above is flush with the upper surface of the insulating layer, the lower surface of the other circle of metal shell positioned below is flush with the lower surface of the insulating layer, the metal shell is positioned at the outermost layer, the bracket insulating layers at two sides of the annular opening groove are all provided with annular bulges along the radial direction, and the outer circular surfaces of the annular bulges are flush with the outer circular surfaces of the metal shells; the metal shells are respectively arranged at the two axial ends of the insulating layer of the bracket.
2. A motor stator for facilitating the processing of an outer circular surface as defined in claim 1, wherein: and a plurality of reinforcing ribs are uniformly arranged in the annular opening groove along the circumferential direction.
3. A motor stator for facilitating the processing of an outer circular surface as defined in claim 1, wherein: the strength of the metal shell is greater than that of the insulating layer.
4. The utility model provides a motor, includes stator, rotor and motor support, stator fixed connection is on the motor support, the rotor rotates to be connected on the motor support, its characterized in that: the stator is a motor stator which is convenient for processing an outer circular surface according to any one of claims 1 to 3.
5. A motor machining and assembling process, characterized in that the motor comprises a stator, wherein the stator is a motor stator which is convenient for machining an outer circular surface and is disclosed in any one of claims 1 to 3; the process comprises the following steps:
s10: manufacturing a stator core and a metal shell;
s20: placing and positioning a stator core and a metal shell as inserts in an injection mold;
s30: using an injection molding material with insulativity to extrude into an injection mold, and forming an insulation layer integrated with the stator core and the metal shell through an injection molding process;
s40: clamping the inner ring surface of the stator core for positioning, and then carrying out finish turning and/or fine grinding on the outer ring surface of the metal shell to manufacture a motor stator;
s50: and fixedly mounting the motor stator on a motor bracket, and rotatably mounting the motor rotor on the motor bracket through a motor shaft.
6. A motor process assembly as set forth in claim 5 wherein: the step S31 is further included between the steps S30 and S40: and carrying out finish turning and/or finish grinding on the inner ring surface of the stator core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110569041.2A CN113364158B (en) | 2021-05-25 | 2021-05-25 | Motor stator and motor convenient for processing outer circular surface and processing and assembling process thereof |
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| CN202110569041.2A CN113364158B (en) | 2021-05-25 | 2021-05-25 | Motor stator and motor convenient for processing outer circular surface and processing and assembling process thereof |
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| CN113364158B true CN113364158B (en) | 2023-09-05 |
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| CN116742849B (en) * | 2023-08-16 | 2023-12-15 | 浙江奥思伟尔电动科技有限公司 | Oil-cooled oriented silicon steel motor stator and assembly method thereof |
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| CN104143863A (en) * | 2013-05-10 | 2014-11-12 | 发那科株式会社 | Stator of electric motor including resin injected by injection molding |
| CN104113165A (en) * | 2013-07-17 | 2014-10-22 | 广东威灵电机制造有限公司 | Motor temperature controller fixing structure and motor to which fixing structure is applied |
| CN203504328U (en) * | 2013-09-12 | 2014-03-26 | 杭州松下马达有限公司 | Insulator for plastic-packaged motor stator assembly and plastic-packaged motor |
| CN104135101A (en) * | 2014-07-14 | 2014-11-05 | 刘军 | Brushless plastic motor and manufacturing method thereof |
| CN105634180A (en) * | 2014-10-09 | 2016-06-01 | 建准电机工业股份有限公司 | Inner rotor motor |
| CN105846564A (en) * | 2015-01-30 | 2016-08-10 | 德昌电机(深圳)有限公司 | Motor and stator structure thereof |
| CN205595951U (en) * | 2015-04-28 | 2016-09-21 | 日本电产株式会社 | Air supply device and dust collector |
| CN109997294A (en) * | 2016-11-28 | 2019-07-09 | 松下知识产权经营株式会社 | Motor |
| CN106602753A (en) * | 2016-12-29 | 2017-04-26 | 中山大洋电机股份有限公司 | Stator assembly and manufacturing method thereof |
| CN210167878U (en) * | 2019-07-16 | 2020-03-20 | 瑞智精密股份有限公司 | Stator structure of motor |
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|---|---|
| CN113364158A (en) | 2021-09-07 |
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Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
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