CN110266158A - A kind of assembly technology of brushless motor - Google Patents

A kind of assembly technology of brushless motor Download PDF

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Publication number
CN110266158A
CN110266158A CN201910659386.XA CN201910659386A CN110266158A CN 110266158 A CN110266158 A CN 110266158A CN 201910659386 A CN201910659386 A CN 201910659386A CN 110266158 A CN110266158 A CN 110266158A
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CN
China
Prior art keywords
assembly
rotor
stator
armature spindle
brushless motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910659386.XA
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Chinese (zh)
Other versions
CN110266158B (en
Inventor
杨定兵
杜若飞
曹彦湖
全伟
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Jiangxi Woder Technology Co.,Ltd.
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Jiangxi Warder Technology Co Ltd
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Priority to CN201910659386.XA priority Critical patent/CN110266158B/en
Publication of CN110266158A publication Critical patent/CN110266158A/en
Application granted granted Critical
Publication of CN110266158B publication Critical patent/CN110266158B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • H02K15/028Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots for fastening to casing or support, respectively to shaft or hub
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/16Centering rotors within the stator; Balancing rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The present invention relates to a kind of assembly technologies.A kind of assembly technology of brushless motor, the first step assemble rotor assembly, and wherein rotor assembly assembly includes the assembly of end-cap assembly and the assembly of the rotor with magnet steel;Shell is first heated and is expanded, then place into stator module during installing stator by second step, assembling stator component;Third step installs rotor assembly in stator module;Inductive magnetic steel is assembled to armature spindle by the 4th step.The present invention provides a kind of stability that brushless motor can be effectively ensured, the consistency of motor performance is good, the assembly technology for the small brushless motor that is deteriorated;Solves the rotor that brushless motor existing in the prior art occurs in assembling process or more play, stator module and rotor assembly concentricity are bad, and bad so as to cause the consistency of motor performance, stability is poor, and be deteriorated big technical problem.

Description

A kind of assembly technology of brushless motor
Technical field
The present invention relates to a kind of assembly technology more particularly to a kind of assembly technologies of brushless motor.
Background technique
In modern society, very extensively, brushless motor substantially by shell, stator module and turns for the use of brushless motor Sub-component is constituted.Stator module is installed in shell, then cooperates rotor assembly and stator module.In assembling process, respectively The installation of a component can all influence the service performance of final brushless motor.But in present installation process, in rotor assembly Play above and below middle rotor meeting;In the installation of stator module, the deformation of case inside wire drawing burr;In stator module and rotor assembly In installation process, the concentricity of stator module and rotor assembly can not guarantee, above problem will eventually lead to brushless motor Performance go wrong, stability is poor, is deteriorated big etc..
Summary of the invention
The present invention provides a kind of stability that brushless motor can be effectively ensured, the consistency of motor performance is good, is deteriorated small Brushless motor assembly technology;Solves the rotor that brushless motor existing in the prior art occurs in assembling process or more Play, stator module and rotor assembly concentricity are bad, and bad so as to cause the consistency of motor performance, stability is poor, are deteriorated Big technical problem.
Above-mentioned technical problem of the invention is solved by following technical proposals:
A kind of assembly technology of brushless motor, the first step assemble rotor assembly, and wherein rotor assembly assembly includes end-cap assembly Assembly and the rotor with magnet steel assembly;
End-cap assembly includes end cap, and upper bearing (metal) is equipped on end cap, and rotor includes armature spindle, is first socketed with rotor magnetic on armature spindle Ring magnetizes to rotor magnetic ring, is then equipped with lower bearing;
Rotor after assembly is cooperated with end-cap assembly, in assembling process, end-cap assembly is placed in upper tooling, rotor It is placed in lower tooling, the positioning reference plane installed using the upper and lower end face of upper bearing (metal) respectively as end-cap assembly and rotor, then It operates upper and lower tooling to be assembled, allows armature spindle to wear and connect in upper bearing (metal), guarantee dimensional tolerance control in +/- 0.05mm;
Second step, assembling stator component, wherein stator module assembly includes first forming upper and lower skeleton and coiling after iron core assembly Then stator module is installed in shell by stator module, during installing stator, first heat shell and expand, then Place into stator module;
Third step installs rotor assembly in stator module, and in assembling process, a concentricity is first stretched out on the inside of stator Axis withstands the shaft end portion of armature spindle in advance, then pushes rotor on one side, and concentricity axis moves down on one side, and such rotor is in concentricity Axis guiding under be smoothly fitted into stator, guarantee the concentricity of rotor assembly and stator module;
Inductive magnetic steel is assembled to armature spindle by the 4th step.
When end-cap assembly and rotor are installed, upper and lower tooling is allowed to share a datum level, added up when eliminating assembly Tolerance is pushed end-cap assembly using servo press, and the size of control Assurance of Size armature spindle upper surface to end cap upper surface exists 2.5mm, precision control size, to reduce play gap of the rotor assembly in motor, motor performance is stablized, and consistency is good, Service life stablizes.
When stator module to be packed into shell, after the expansion of shell induction heating, stator freely falling body enters shell, to Elastic conjunction is formed after cooling.Avoiding will lead to case inside wire drawing when interference is pressed between brushless motor stator assembly housing Burr deformation etc., stator module, which also will receive a degree of deformation, causes the performance of motor unstable, inconsistent.To guarantee It is pulled in assembling process without deformation, is deformed substandard products etc..
In assembling process stator assembly and rotor assembly, increase the guiding of predetermined shaft, guarantees that rotor assembly can be smoothly It is fitted into stator module, meanwhile, rotor bearing will not be bruised, and guarantee does not generate Leakage, and be also ensured with one heart Degree is to a very small extent (0.1mm Max).
Preferably, when magnetizing to rotor magnetic ring, first covering upper antimagnetizing in shaft in first step assembling process Isolation set, lower bearing is then socketed on armature spindle.It will be socketed the red copper set as isolation set on armature spindle, can effectively prevent Armature spindle magnetization, in this way in subsequent installation waveform spring, will not be adsorbed by armature spindle, can smoothly be fitted into stator, together When armature spindle will not adsorbing metal clast cause motor or pump block clamping stagnation etc., do not need to increase additional cleaning process, Reduce cost.
Preferably, after installing stator in shell, then installing oil sealing and waveform spring in second step.
Preferably, first withstanding rotor electric machine casing end face pre-pressing, then with pre- apical axis in the assembly process of the 4th step Then axis lower end tests the distance of armature spindle upper surface to electric machine casing upper surface, then passes through induced magnet to motor casing body end The distance value that face requires calculates the stroke of servo press pushing, and such servo press pushes specified stroke common reference face, The dimensional tolerance stack problem in assembling process is eliminated, precise measure control has been reached.Induced magnet end face is to electric machine casing Dimensional tolerance 2+/- 0.1mm of end face, realization are accurately controlled within +/- 0.05mm, and free cumulative limit is small.Induced magnet position It is good to set consistency, motor position signal consistency is good, and motor performance uniformity consistency is good, and the service life stablizes.
Therefore, a kind of assembly technology of brushless motor of the invention has following advantages: in the process of installation various components In, the play of armature spindle is effectively prevented, stator assembly and rotor assembly installs smooth, shell will not be scratched, leakage will not be generated Oily problem, rotor assembly and stator module good concentricity, motor performance are stablized, and defect rate is low, and the service life stablizes, and consistency is good.
Detailed description of the invention
Fig. 1 is the perspective view of end-cap assembly of the invention.
Fig. 2 is the perspective view of rotor assembly of the invention.
Fig. 3 is the perspective view after stator module installation of the invention.
Fig. 4 is the perspective view of brushless motor of the invention.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solution to invention is described in further detail.
Embodiment:
As shown in Fig. 1 and 2 and 3 and 4, a kind of assembly technology of brushless motor, the first step assembles rotor assembly, wherein rotor set Part assembly includes the assembly of end-cap assembly and the assembly of the rotor with magnet steel;End-cap assembly includes end cap 1, is equipped on end cap 1 Upper bearing (metal) 2, rotor include armature spindle 3, are first socketed with rotor magnetic ring 4 on armature spindle 3, magnetize to rotor magnetic ring 4, to turn When sub- magnet ring 4 is magnetized, the red copper set of upper antimagnetizing is first covered in shaft, lower bearing 5 is then socketed on armature spindle 3.
Rotor after assembly is cooperated with end-cap assembly, and in assembling process, end-cap assembly is placed in upper tooling, Rotor is placed in lower tooling, the positioning reference plane installed using the upper and lower end face of upper bearing (metal) respectively as end-cap assembly and rotor, Then it operates upper and lower tooling to be assembled, allows armature spindle to wear and connect in upper bearing (metal), guarantee dimensional tolerance control in +/- 0.05mm It is interior;
Second step, assembling stator component, wherein stator module assembly includes first forming upper and lower skeleton and coiling after iron core assembly Then stator module is installed in shell 6 by stator module 7, during installing stator, first heat shell and expand, so After place into stator module 7, after stator is installed in shell, then oil sealing and waveform spring are installed.
Third step installs rotor assembly in stator module, and in assembling process, one is first stretched out on the inside of stator together Heart degree axis withstands the shaft end portion of armature spindle 3 in advance, then pushes rotor on one side, and concentricity axis moves down on one side, and such rotor exists It is smoothly fitted into stator under the guiding of the axis of concentricity, guarantees the concentricity of rotor assembly and stator module.Rotor assembly installation To after determining in component, fixed using screw-driving.
Inductive magnetic steel 8 is assembled to armature spindle, first withstood electric machine casing end face pre-pressing, then with pre- apical axis by the 4th step Then armature spindle lower end tests the distance of armature spindle upper surface to electric machine casing upper surface, then passes through induced magnet to motor casing The distance value that body end face requires calculates the stroke of servo press pushing, and such servo press pushes specified stroke common reference Face eliminates the dimensional tolerance stack problem in assembling process, has reached precise measure control.

Claims (4)

1. a kind of assembly technology of brushless motor, it is characterised in that:
The first step assembles rotor assembly, and wherein rotor assembly assembly includes the assembly of end-cap assembly and the dress of the rotor with magnet steel Match;
End-cap assembly includes end cap, and upper bearing (metal) is equipped on end cap, and rotor includes armature spindle, is first socketed with rotor magnetic on armature spindle Ring magnetizes to rotor magnetic ring, is then equipped with lower bearing;
Rotor after assembly is cooperated with end-cap assembly, in assembling process, end-cap assembly is placed in upper tooling, rotor It is placed in lower tooling, the positioning reference plane installed using the upper and lower end face of upper bearing (metal) respectively as end-cap assembly and rotor, then It operates upper and lower tooling to be assembled, allows armature spindle to wear and connect in upper bearing (metal), guarantee dimensional tolerance control in +/- 0.05mm;
Second step, assembling stator component, wherein stator module assembly includes first forming upper and lower skeleton and coiling after iron core assembly Then stator module is installed in shell by stator module, during installing stator, first heat shell and expand, then Place into stator module;
Third step installs rotor assembly in stator module, and in assembling process, a concentricity is first stretched out on the inside of stator Axis withstands the shaft end portion of armature spindle in advance, then pushes rotor on one side, and concentricity axis moves down on one side, and such rotor is in concentricity Axis guiding under be smoothly fitted into stator, guarantee the concentricity of rotor assembly and stator module;
Inductive magnetic steel is assembled to armature spindle by the 4th step.
2. a kind of assembly technology of brushless motor according to claim 1, it is characterised in that: in first step assembling process In, when magnetizing to rotor magnetic ring, the isolation set of upper antimagnetizing is first covered in shaft, lower axle is then socketed on armature spindle It holds.
3. a kind of assembly technology of brushless motor according to claim 1 or 2, it is characterised in that: in second step, by stator After installing in shell, then oil sealing and waveform spring are installed.
4. a kind of assembly technology of brushless motor according to claim 1 or 2, it is characterised in that: the assembler of the 4th step In sequence, armature spindle lower end first is withstood electric machine casing end face pre-pressing, then with pre- apical axis, then tests armature spindle upper surface to electricity The distance of casing body upper surface, then servo press is calculated by induced magnet to the distance value that electric machine casing end face requires and is pushed Stroke, such servo press pushes specified stroke common reference face, and the dimensional tolerance stack eliminated in assembling process is asked Topic, has reached precise measure control.
CN201910659386.XA 2019-07-22 2019-07-22 Assembling process of brushless motor Active CN110266158B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910659386.XA CN110266158B (en) 2019-07-22 2019-07-22 Assembling process of brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910659386.XA CN110266158B (en) 2019-07-22 2019-07-22 Assembling process of brushless motor

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CN110266158A true CN110266158A (en) 2019-09-20
CN110266158B CN110266158B (en) 2020-11-03

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203967917U (en) * 2014-06-19 2014-11-26 西安盾安电气有限公司 The horizontal assembling device of a kind of magneto
CN105099041A (en) * 2014-04-22 2015-11-25 德昌电机(深圳)有限公司 Brushless motor, external rotor of brushless motor and manufacture method of external rotor
CN106712413A (en) * 2015-07-17 2017-05-24 胡永健 Motor bearing mounting method and motor
CN107276344A (en) * 2016-04-05 2017-10-20 东芝产业机器系统株式会社 The manufacture device of electric rotating machine and the manufacture method of electric rotating machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099041A (en) * 2014-04-22 2015-11-25 德昌电机(深圳)有限公司 Brushless motor, external rotor of brushless motor and manufacture method of external rotor
CN203967917U (en) * 2014-06-19 2014-11-26 西安盾安电气有限公司 The horizontal assembling device of a kind of magneto
CN106712413A (en) * 2015-07-17 2017-05-24 胡永健 Motor bearing mounting method and motor
CN107276344A (en) * 2016-04-05 2017-10-20 东芝产业机器系统株式会社 The manufacture device of electric rotating machine and the manufacture method of electric rotating machine

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Address after: 335200 glasses Industrial Park, Yujiang County, Yingtan City, Jiangxi Province

Patentee after: Jiangxi Woder Technology Co.,Ltd.

Address before: 335200 glasses Industrial Park, Yujiang County, Yingtan City, Jiangxi Province

Patentee before: Jiangxi Warder Technology Co.,Ltd.

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