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Motor stator convenient for excircle surface processing, motor and processing and assembling process thereof

A technology of motor stator and outer circular surface, applied in electromechanical devices, manufacturing stator/rotor body, electrical components, etc., can solve problems such as high concentricity, achieve uniform air gap value, stable structural connection, and easy assembly and operation.

Pending Publication Date: 2021-09-07
ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a motor stator, a motor and its processing and assembly process that are convenient for machining the outer circle surface, which can effectively solve the difficulty in finishing the outer circle surface of the stator in order to meet the double insulation requirements in the prior art to ensure the inner and outer rings of the stator. The problem of high concentricity can improve the concentricity of the stator and the rotor, and ensure that the required uniform small air gap can be obtained between the stator and the rotor

Method used

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  • Motor stator convenient for excircle surface processing, motor and processing and assembling process thereof
  • Motor stator convenient for excircle surface processing, motor and processing and assembling process thereof
  • Motor stator convenient for excircle surface processing, motor and processing and assembling process thereof

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Embodiment 1

[0029] Embodiment one: if figure 1As shown, the motor stator provided by this embodiment is convenient for processing the outer surface, including a stator core 1, an insulating layer 2 is provided on the outer surface of the stator core 1, a metal shell 3 is provided on the outer surface of the insulating layer 2, and a metal shell 3 is provided on the outer surface of the insulating layer. 2 and the stator core 1 and the metal shell 3 are injection molded as a whole by metal insert injection molding process. Specifically, the stator core 1 and the metal shell 3 are put into the injection mold as inserts, and the stator core 1 and the stator core are formed through the injection molding process. The insulating layer 2 integrated with the iron core 1 and the metal shell 3 has a stable structural connection, and at the same time, the stator core 1 is double-insulated to meet safety requirements. In addition, since the metal shell 3 is located on the outermost layer, that is, th...

Embodiment 2

[0034] Embodiment 2: This embodiment provides a motor, such as Figure 4 As shown, the motor includes a motor stator, a motor rotor 5 and a motor bracket 4, the motor stator is fixedly connected to the motor bracket 4 by bolts, the motor rotor 5 is fixedly connected to the motor shaft 6, and the front and rear ends of the motor bracket 4 are provided with Bearing chamber, bearing chamber is provided with bearing 7, and the front and rear ends of motor shaft 6 are respectively rotatably connected on the bearing 7 of the corresponding side, has air gap 8 between stator and motor rotor 5, and it is also provided with cooling wind vane 9 inside. Wherein, the stator is a motor stator which is provided by the above-mentioned embodiment and is convenient for machining the outer circle. Since the motor adopts the stator in the above scheme, the concentricity between the stator and the rotor can be precisely controlled, and then the required air gap value between the stator and the mot...

Embodiment 3

[0035] Embodiment 3: This embodiment provides a motor processing and assembly process, combining Figure 4 The motor in , the motor processing and assembly process includes the following steps:

[0036] S10: Make the stator core 1 and the metal shell 3; in this embodiment, the silicon steel sheet is made by stamping, and then the stator core 1 is made by laminating the silicon steel sheet through fasteners, and the metal shell 3 is made by die-casting process, of course It can be understood that the metal shell 3 can also be made by stretching, powder metallurgy, extrusion and other processes.

[0037] S20: placing the stator core 1 and the metal casing 3 as inserts and positioning them in the injection mold;

[0038] S30: Extrude the insulating injection molding material into the injection mold, and form the insulating layer 2 integrated with the stator core 1 and the metal shell 3 through the injection molding process; in this embodiment, extruding the molten injection mold...

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Abstract

The invention discloses a motor stator convenient for excircle surface processing. The motor stator comprises a stator iron core, an insulating layer is arranged on the outer surface of the stator iron core, a metal shell is arranged on the outer surface of the insulating layer, and the insulating layer, the stator iron core and the metal shell are integrated through injection molding by adopting a metal insert injection molding process. The invention further discloses a motor based on the motor stator. In addition, the invention also discloses a processing and assembling technology of the motor. According to the invention, the stator core and the metal shell are put into a mold as inserts, the insulating layer integrated with the stator core and the metal shell is formed through the injection molding process, the stator core obtains double insulation, and the safety requirement is met. Meanwhile, as the metal shell is located in the outermost layer, the outer circle face of the stator can be conveniently subjected to finish machining, the concentricity of the inner hole and the outer circle of the stator can be accurately controlled, then the air gap value needed between the stator and the rotor is obtained, and meanwhile the quality problem of mechanical interference between the stator and the rotor is not prone to occurring.

Description

technical field [0001] The invention belongs to the field of motor equipment, and in particular relates to a motor stator, a motor and a processing and assembling process for facilitating the processing of an outer circular surface. Background technique [0002] For high-voltage brushless motors, especially miniature high-voltage switched reluctance motors, in order to ensure power density and efficiency, the air gap between the stator and the rotor is generally 0.2mm-0.35mm, and its axial length is generally greater than 60mm, which leads to During the assembly process, the concentricity of the stator and rotor is extremely demanding. In addition, due to the requirements of safety regulations, both the stator and the rotor need to adopt a double-insulation structure. In the prior art, the double-insulation structure of the stator is generally made by coating the outer surface of the stator with insulating materials, or the outer circle of the stator is connected with the mo...

Claims

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Application Information

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IPC IPC(8): H02K1/14H02K1/18H02K3/34H02K15/02
CPCH02K1/146H02K1/185H02K3/345H02K15/02Y02T10/64
Inventor 邵利陆楣
Owner ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD