WO2013132786A1 - Procédé de séparation des bobinages de moteur électrique - Google Patents

Procédé de séparation des bobinages de moteur électrique Download PDF

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Publication number
WO2013132786A1
WO2013132786A1 PCT/JP2013/001150 JP2013001150W WO2013132786A1 WO 2013132786 A1 WO2013132786 A1 WO 2013132786A1 JP 2013001150 W JP2013001150 W JP 2013001150W WO 2013132786 A1 WO2013132786 A1 WO 2013132786A1
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WO
WIPO (PCT)
Prior art keywords
winding
peeling
conductor
cutting blade
peeled
Prior art date
Application number
PCT/JP2013/001150
Other languages
English (en)
Japanese (ja)
Inventor
渡辺　彰彦
篤史 高野
武彦 長谷川
畑矢　英児
裕午 劉
近藤　憲司
Original Assignee
パナソニック株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to CN201380005385.4A priority Critical patent/CN104067490B/zh
Publication of WO2013132786A1 publication Critical patent/WO2013132786A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/066—Winding non-flat conductive wires, e.g. rods, cables or cords with insulation
    • 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
    • H02K15/0056—Manufacturing winding connections
    • H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals

Definitions

  • the present invention relates to a technique in which an insulating coating at the tip of an insulating coating-coated electric wire whose core wire is covered with at least one layer of insulating coating is peeled off so that the core wire is exposed and joined to other components by soldering.
  • the present invention relates to a method for peeling a winding wound around a stator or the like of an electric motor.
  • copper wire has been mainly selected as the conductor of electric wires used in motors (electric motors).
  • electric motors electric motors
  • the use of electric wires using conductors other than copper has been increasing due to recent soaring copper wires and improvements to the weight reduction of motors.
  • Patent Document 1 a technique for removing an oxide film by ultrasonic waves
  • Patent Document 2 a technique for preventing or removing oxidation using a reducing gas
  • Patent Document 3 a technique for joining by using ultrasonic waves and zinc-based solder together
  • Patent Document 4 a technique for peeling an insulating film in a flux
  • the present invention solves the above-described conventional problems, does not require large-scale equipment, can increase the reliability of joining with other components at low cost, and can be insulated without breaking the wires.
  • an insulating film peeling method for an insulating coated electric wire capable of peeling a film is provided.
  • the winding separation method of the electric motor of the present invention is a method of peeling off the insulating coating at the winding end of the winding wound around the magnetic pole of the stator, and the tension is applied by pulling the winding end.
  • the insulating coating is peeled off by moving the insulating coating peeling device in which the cutting blade rotates.
  • by rotating a plurality of cutting blades to cut the insulating film it can be peeled uniformly and in a short time, and by applying tension to the end of the winding and peeling, preventing disconnection Can do. And, by applying tension, it corrects the distortion and bending of the electric wire and prevents the electric wire from sagging when it is peeled off by the cutting blade. And disconnection can be prevented.
  • FIG. 1 is a partial cross-sectional view of an electric motor according to an embodiment of the present invention.
  • FIG. 2 is a configuration diagram of a stator of the electric motor.
  • FIG. 3 is a cross-sectional view of the electric wire according to the embodiment of the present invention.
  • FIG. 4 is an explanatory diagram of the winding peeling method according to the embodiment of the present invention.
  • FIG. 1 is a structural diagram showing a partial cross section of an electric motor according to an embodiment of the present invention.
  • FIG. 2 is a view showing a specific configuration example of a finished winding product (finished stator product) 17 of the same motor.
  • an example of an electric motor that is mounted for an air conditioner as an electric device and that is a brushless motor for driving a blower fan will be described.
  • an example of soldering connection between a wire conductor and a terminal will be described.
  • the electric motor 2 is configured using a winding in which the insulating coating at the tip of the insulating coating-coated electric wire is peeled off by the winding peeling method of the electric motor of the present invention, as shown in FIG.
  • the electric motor is provided with such a wound product 17.
  • a stator 13 is configured by molding a stator core 1 around which a winding 3 is wound with an insulating resin 7 which is a molding material for integrally molding the mold. .
  • An insulator 2 that insulates the stator core 1 is interposed between the stator core 1 and the winding 3. Further, the winding start line or the winding end line (hereinafter referred to as the winding end 4) is peeled off the insulating coating, applied with soldering flux, and soldered to the terminals 6.
  • the rotor 12 is inserted inside the stator 13 through a gap.
  • the rotor 12 includes a disk-shaped rotating body 11 including the rotor core 8 and a shaft 10 to which the rotating body 11 is fastened so as to penetrate the center of the rotating body 11.
  • the rotor core 8 holds a plurality of permanent magnets 9 in the circumferential direction facing the inner peripheral side of the stator 13.
  • Two bearings 14 that support the shaft 10 are attached to the shaft 10 of the rotor 12.
  • One of the two bearings 14 is fixed to an insulating resin 7 that is integrally molded with the mold, and the other is fixed to a metal bracket 15.
  • the brushless motor incorporates a printed circuit board 16 on which a drive circuit is mounted. After this printed circuit board 16 is electrically joined to the terminal 6, the bracket 15 is press-fitted into the stator 13 to form a brushless motor.
  • FIG. 3 is a cross-sectional view of the electric wire 20 used as the winding 3.
  • the electric wire 20 may have a configuration in which the conductor 18 is covered with the insulating coating 19, and the insulating coating 19 may have a configuration in which the conductor 18 is covered with one or two layers of insulating coating.
  • the structure covered with the multilayer insulation film of three or more layers may be sufficient.
  • the insulating coating 19 is a multilayer, the withstand voltage can be improved, which is advantageous for further miniaturization.
  • an aluminum conductor 18 made of metal is coated with a two-layer insulating coating 19 made of polyester and nylon (so-called PEWN electric wire) is used.
  • PEWN electric wire a two-layer insulating coating 19 made of polyester and nylon
  • the material of the insulating coating 19 may be any of urethane, polyester, and polyimide.
  • FIG. 4 is an explanatory diagram of a winding peeling method according to the embodiment of the present invention.
  • the insulating film peeling device 108 includes a cutting blade 101, a cutting blade rotating device 102, a cutting blade moving device 103, and a tension applying device 104.
  • the cutting blade 101 has a plurality of blades, and peels off the insulating coating 19 on the winding end 4 attached to the inside of the blade by cutting.
  • the cutting blade rotating device 102 rotates the cutting blade 101 in the circumferential direction of the winding end 4.
  • the cutting blade moving device 103 moves the cutting blade 101 in the extending direction of the winding end 4.
  • the tension applying device 104 applies tension to the winding end 4 mounted in the insulating coating film peeling device 108 in the direction of the extended end of the winding end 4.
  • the winding end 4 is passed through the centers of the three cutting blades 101, the cutting blade rotating device 102, and the cutting blade moving device 103, and the tip 4 a of the winding end 4 is connected to the tension applying device 104. Then, tension is applied by the tension applying device 104 to pull the electric wire 20 with a force of 5 MPa or more and 50 MPa or less with respect to the electric wire 20 (more specifically, the conductor 18 of the electric wire 20) in the tension applying direction indicated by an arrow 109. To do.
  • the insulating film peeling device 108 is disposed outside the finished winding product 17 so that the winding end 4 extends in the radial direction of the finished winding product 17.
  • the cutting blade 101 is rotated by the cutting blade rotating device 102, the cutting blade moving device 103 is moved in the direction of the arrow 105 which is the same direction as the tension application direction, and the insulating coating 19 is peeled off. And the conductor part 4b after peeling an insulating film is processed.
  • the conductor 18 of the electric wire 20 preferably has a diameter of 0.15 mm or more and 0.5 mm or less.
  • the insulating coating 19 has a thickness of approximately 0.01 mm to 0.03 mm. Further, when the insulating coating 19 is peeled off, it is preferable that the conductor 18 is peeled from the surface at a depth of 0.001 mm or more and 0.005 mm or less at the same time to form the conductor portion 4b after peeling off the insulating coating. That is, the insulating coating 19 is first peeled off from the winding end 4 of the electric wire 20 by cutting with the cutting blade 101, and this cutting is continued to a little deeper so that the surface of the conductor 18 is also peeled off.
  • the cutting blade 101 is structured to bite into the electric wire 20 when rotated, and the amount of peeling can be adjusted by adjusting the biting stopper.
  • the portion where the insulating film 19 remains (the portion that has not been peeled off) is cut in the vicinity of the tip portion 4a of the winding end portion 4.
  • a flux is applied to the conductor portion 4b after the insulating film is peeled off, soldered to the terminal 6, and molded with the insulating resin 7, whereby the stator 13 is configured.
  • a flux with a solid content of 15%, a viscosity of 4 mPa, a halogen content of 0.08 ⁇ 0.02% is used, and the solder is Sn-3Ag-0.5Cu. did.
  • the rotor 12, the printed circuit board 16, and the bracket 15 were assembled into an electric motor.
  • Example 1 In the content described in the embodiment, the electric wire 20 was used in which the conductor material was aluminum, the conductor diameter was 0.3 mm, the insulating coating 19 was PEWN, and the insulation film thickness was 0.012 mm. Further, a tension of 30 MPa was applied to the conductor of the electric wire in the direction of applying a tension applied to the winding end 4, the cutting blade 101 was rotated at a rotational speed of 1500 r / min, and the insulating coating 19 was peeled off. At this time, the direction 105 in which the cutting blade moves was the same as the tension application direction. Further, the biting prevention stopper of the cutting blade 101 was adjusted so that the conductor 18 was simultaneously peeled by a depth of 0.002 mm. Production of 1000 electric motors was carried out under such conditions, and the disconnection failure rate at the time of insulation coating peeling, the insulation coating remaining failure rate after peeling, and the soldering connection failure rate with the terminals 6 were confirmed.
  • the rotational speed of the cutting blade 101 was 1500 r / min, and the biting prevention stopper of the cutting blade 101 was adjusted so that the conductor 18 was peeled off at a depth of 0.002 mm at the same time.
  • Production of 1000 electric motors was carried out under such conditions, and the disconnection failure rate at the time of insulation coating peeling, the insulation coating remaining failure rate after peeling, and the soldering connection failure rate with the terminals 6 were confirmed.
  • Table 1 shows the results of confirmation between Example 1 and Comparative Example 1.
  • the insulating coating 19 can be peeled without breaking even with a thin aluminum wire having a conductor diameter of 0.3 mm. Furthermore, since the aluminum oxide layer produced
  • the aluminum oxide layer is said to be 0.0005 mm or less.
  • the winding peeling method for an electric motor of the present invention it is possible to provide an insulating film peeling method for an electric wire that can increase the reliability of joining to other components at low cost while improving productivity.
  • the present invention is a method for peeling off the insulating film at the winding end of the winding wound around the magnetic pole of the stator, and the tension is applied by pulling the winding end.
  • the winding film peeling method is characterized in that the insulating film is peeled off by moving an insulating film peeling device in which the cutting blade rotates. Thereby, an insulating film can be peeled without disconnecting an electric wire. Even when aluminum having a strength lower than that of a copper wire or an iron wire is adopted as a conductor of the winding, disconnection when the insulating coating is peeled can be prevented.
  • the moving direction of the insulating film peeling device is the same as the direction in which the tension is applied, it is possible to easily prevent the sagging of the electric wire that occurs when peeling with the cutting blade.
  • the tension is desirably 5 MPa or more and 50 MPa or less with respect to the conductor. If the pressure is less than 5 MPa, it is not possible to correct the distortion or bending of the electric wire or to prevent the electric wire from sagging when it is peeled off by the cutting blade. In addition, the electric wire may be disconnected at a tension greater than 50 MPa.
  • the winding conductor has a diameter of 0.15 mm or more and 0.5 mm or less. If the thickness is less than 0.15 mm, the insulation film is peeled off when the insulating blade is peeled off due to the rotation of the cutting blade, and if the wire is larger than 0.5 mm, the distortion of the wire due to the tension or the bending wrinkle cannot be corrected.
  • the conductor of the winding when stripping the insulation film of the winding, it is desirable to strip the conductor of the winding at the same time from 0.001 mm to 0.005 mm.
  • the conductor part of the winding is peeled off at less than 0.001 mm, the aluminum oxide layer is not completely removed, so that the soldering connection between the conductor part and the terminal or the lead wire cannot be easily performed.
  • winding is simultaneously peeled larger than 0.005 mm, the amount of biting of a cutting blade may become large and may cause a disconnection.
  • the winding separation method for an electric motor of the present invention can be applied to an electric motor such as an air conditioner, and can also be applied to other electric motors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Coil Winding Methods And Apparatuses (AREA)

Abstract

L'invention concerne un procédé de séparation des bobinages d'un moteur électrique qui est un procédé de séparation d'un film isolant sur une partie d'extrémité d'un bobinage qui est enroulé sur un pôle magnétique d'un stator. Ce procédé de séparation de bobinage est caractérisé en ce qu'une partie d'extrémité de bobinage est tirée vers un état tendu, et un dispositif de séparation de film isolant ayant une lame de coupe rotative est déplacé, séparant le film isolant. Il est ainsi possible de séparer le film isolant sans rompre le fil. Même si de l'aluminium, qui est moins résistant qu'un fil de cuivre ou qu'un fil de fer, est employé dans un conducteur de bobinage, il sera possible d'éviter la rupture lorsque le film isolant est en train d'être séparé.
PCT/JP2013/001150 2012-03-06 2013-02-27 Procédé de séparation des bobinages de moteur électrique WO2013132786A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380005385.4A CN104067490B (zh) 2012-03-06 2013-02-27 电动机的绕线剥离方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-048755 2012-03-06
JP2012048755A JP5903580B2 (ja) 2012-03-06 2012-03-06 電動機の巻線剥離方法

Publications (1)

Publication Number Publication Date
WO2013132786A1 true WO2013132786A1 (fr) 2013-09-12

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PCT/JP2013/001150 WO2013132786A1 (fr) 2012-03-06 2013-02-27 Procédé de séparation des bobinages de moteur électrique

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JP (1) JP5903580B2 (fr)
CN (1) CN104067490B (fr)
WO (1) WO2013132786A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3197028B1 (fr) * 2016-01-22 2018-11-21 General Electric Technology GmbH Outil de dénudage de barres conductrices
CN111030391B (zh) * 2020-01-07 2020-11-17 江苏天润达光电科技有限公司 一种废旧电机铜线自动剥离装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121225A (ja) * 1991-10-29 1993-05-18 Tokin Corp 絶縁被膜電線と端子の接続方法
JPH0746801A (ja) * 1993-08-05 1995-02-14 Kato Denshi Kiki Kk リード線の端末処理装置
JP2002101516A (ja) * 2000-07-17 2002-04-05 Nittoku Eng Co Ltd 導電線絶縁被膜の剥離方法および剥離装置
JP2009142096A (ja) * 2007-12-07 2009-06-25 Panasonic Corp モータの製造方法
JP2011234447A (ja) * 2010-04-26 2011-11-17 Nittoku Eng Co Ltd 線材の皮膜剥離装置及びその皮膜剥離方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2752275B2 (ja) * 1991-10-16 1998-05-18 日特エンジニアリング株式会社 線材の被膜剥離方法および装置
JPH1014182A (ja) * 1996-06-26 1998-01-16 Toshiba Corp 固定子コイル製造装置
JP4654068B2 (ja) * 2005-05-24 2011-03-16 日立オートモティブシステムズ株式会社 接合電線と接合電線の加工方法，回転電機の固定子と回転電機の固定子の製造方法及び接合電線製造装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121225A (ja) * 1991-10-29 1993-05-18 Tokin Corp 絶縁被膜電線と端子の接続方法
JPH0746801A (ja) * 1993-08-05 1995-02-14 Kato Denshi Kiki Kk リード線の端末処理装置
JP2002101516A (ja) * 2000-07-17 2002-04-05 Nittoku Eng Co Ltd 導電線絶縁被膜の剥離方法および剥離装置
JP2009142096A (ja) * 2007-12-07 2009-06-25 Panasonic Corp モータの製造方法
JP2011234447A (ja) * 2010-04-26 2011-11-17 Nittoku Eng Co Ltd 線材の皮膜剥離装置及びその皮膜剥離方法

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Publication number Publication date
JP2013187926A (ja) 2013-09-19
CN104067490B (zh) 2017-02-08
CN104067490A (zh) 2014-09-24
JP5903580B2 (ja) 2016-04-13

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