KR100476587B1 - Brazing method of Cu bar type induction motor - Google Patents

Brazing method of Cu bar type induction motor Download PDF

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Publication number
KR100476587B1
KR100476587B1 KR10-1999-0043772A KR19990043772A KR100476587B1 KR 100476587 B1 KR100476587 B1 KR 100476587B1 KR 19990043772 A KR19990043772 A KR 19990043772A KR 100476587 B1 KR100476587 B1 KR 100476587B1
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KR
South Korea
Prior art keywords
end ring
brazing
copper bar
induction motor
torch
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Application number
KR10-1999-0043772A
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Korean (ko)
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KR20010036666A (en
Inventor
이종인
권중록
박정태
이갑재
이정일
김기찬
이준엽
Original Assignee
현대중공업 주식회사
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Publication of KR20010036666A publication Critical patent/KR20010036666A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F05D2230/31—Layer deposition
    • F05D2230/311—Layer deposition by torch or flame spraying
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/34—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter

Abstract

본 발명은 중대형 유도전동기 및 차량용 유도전동기의 브레징(brazing)에 있어서, 특히 회전자의 동바(CU BAR)와 엔드링(ENDRING)을 브레징하는 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of brazing a CU BAR and an ENDRING of a rotor in brazing medium and large induction motors and induction motors for vehicles.

종래에는 엔드링과 동바를 브레징할 경우 엔드링의 밑바닥을 가열하면서 별도의 토치를 사용하여 엔드링 및 동바에 화염을 직접 가하기 때문에 토치화염이 엔드링 및 동바의 접촉부위에 접촉되므로서 브레이징되는 용가재 속으로 가스가 스며들어 기포발생 및 그로 인한 강도저하가 문제가 되었다.Conventionally, when brazing the end ring and the copper bar, the torch flame is brazed as it contacts the end ring and the copper bar by directly applying a flame to the end ring and the copper bar by using a separate torch while heating the bottom of the end ring. The gas infiltrated into the filler metal caused bubbles and the resulting strength degradation.

본 발명은 엔드링의 홈 내부에 잘게 절단된 용가재를 삽입하고 그 위로 동바를 수직으로 세워 엔드링 밑부분에서 가스토치로 가열하여 상기 용가재가 녹아 동바와 엔드링이 브레징되도록 한 방법으로서, 가스토치 화염부분이 용가재에 직접 가열되지 않기때문에 브레징 방법과 견인유도전동기의 시스템 특성상 브레징 부위의 강도저하 방지등 그 신뢰성을 향상시켜 준다. The present invention is a method of inserting a chopped lobster inside the groove of the end ring and vertically up the copper bar to be heated by a gas torch at the bottom of the end ring to melt the filler material so that the copper bar and the end ring are brazed. Since the flame part is not directly heated to the filler metal, the brazing method and the system characteristics of the traction induction motor improve the reliability of the brazing part.

Description

동바 타입 유도전동기의 브레징 방법{Brazing method of Cu bar type induction motor}Brazing method of copper bar type induction motor

본 발명은 중대형 유도전동기 및 차량용 유도전동기의 브레징(brazing)에 있어서, 특히 회전자의 동바(CU BAR)와 엔드링(ENDRING)을 브레징하는 방법에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of brazing a CU BAR and an ENDRING of a rotor in brazing medium and large induction motors and induction motors for vehicles.

종래 동바타입 유도전동기의 브레징방법에 대하여 설명하면, 일정온도로 엔드링 하부를 가열하면서 엔드링부위를 회전시키고, 상기 엔드링과 동바과 결합되는 부위에 별도의 토치를 이용하여 용가재를 모재에 올려부치는 방법으로 브레이징하게 된다.Referring to the conventional brazing method of the copper bar type induction motor, the end ring portion is rotated while heating the lower end ring at a constant temperature, and the filler metal is placed on the base material by using a separate torch at the portion where the end ring and the copper bar are combined. Butch is brazed in a way.

즉, 엔드링부위의 저면에서 토치로 일정온도까지 가열시켜 주면서 엔드링부위를 회전시켜 주고, 이 상태에서 엔드링 부위에 동바를 위치시킨 다음 별도의 토치를 이용하여 용가재(용접봉)를 모재(엔드링부위와 동바)에 올려 부치는 방법으로 브레이징하게 된다.That is, the end ring is rotated while heating the end ring with a torch at the bottom of the end ring. In this state, the copper bar is placed on the end ring, and the base material (end ring) is formed using a separate torch. It will be brazed by placing it on the part and the bar.

그러나, 별도의 토치를 사용하여 엔드링부위에 화염을 직접 가하기 때문에 치화염이 엔드링과 동바의 접촉부위에 접촉되므로서 브레이징되는 용가재 속으로 가스가 스며들어 기포발생 및 그로 인한 강도저하가 문제가 되었다.However, since the flame is applied directly to the end ring by using a separate torch, gas is penetrated into the brazing filler metal as the gingival flame is in contact with the contact area between the end ring and the copper bar. It became.

상기와 같은 문제점을 해결하기 위하여, 본 발명은 엔드링의 홈 내부에 잘게 절단된 용가재를 삽입하고 그 위로 동바를 수직으로 세워 엔드링 밑부분에서 가스토치로 가열하여 상기 용가재가 녹아 동바와 엔드링이 브레징되도록 한 방법으로서, 가스토치 화염부분이 용가재에 직접 가열되지 않기때문에 브레징 방법과 견인유도전동기의 시스템 특성상 브레징 부위의 강도저하 방지등 신뢰성을 향상시켜 준다. In order to solve the above problems, the present invention inserts the finely cut filler material into the groove of the end ring and the copper rod is vertically placed thereon and heated with a gas torch at the bottom of the end ring to melt the filler material so that the copper bar and the end ring As a method of brazing, the gas flame part is not directly heated to the filler metal, which improves reliability, such as the strength of the brazing part and the reduction of strength at the brazing part due to the system characteristics of the traction induction motor.

본 발명 동바 타입 유도전동기의 브레징 방법은, 엔드링(10)의 홈(10a) 내부에 잘게 절단된 용가재(40)를 삽입한 다음, 상기 홈(10a)으로 동바(30)를 수직으로 세우고, 상기 엔드링 밑부분을 가스토치(50)로 가열하여 용가재(40)가 녹아서 엔드링(10)과 동바(30)를 브레이징할수 있도록 한 것을 특징으로 한다.In the brazing method of the copper bar type induction motor of the present invention, inserting the finely cut filler metal 40 into the groove (10a) of the end ring 10, and then vertically up the copper bar (30) with the groove (10a) The bottom portion of the end ring is heated with a gas torch 50 so that the filler metal 40 melts so that the end ring 10 and the copper bar 30 can be brazed.

상기와 같은 동바타입 유도전동기의 브레징방법에 대하여 도 1 및 도 2를 참조하여 설명하면 다음과 같다.The brazing method of the copper bar type induction motor as described above will be described with reference to FIGS. 1 and 2.

먼저, 동바(30)가 세워지는 엔드링(10)의 대응위치에 홈(10a)을 가공하고 그 부분에 용가재(40)를 잘게 절단하여 다수개를 넣게된다.First, the groove 10a is processed at the corresponding position of the end ring 10 on which the copper bar 30 is erected, and the filler metal 40 is finely cut in the portion thereof, thereby inserting a plurality of them.

그런다음 엔드링(10)의 홈(10a)으로 동바(30)를 수직으로 세워두고 엔드링(10)의 밑부분에서 토치(50)로 가열하게 된다. 즉, 가스토치(50)의 화염부분을 용가재(40)에 직접 가열하지 않고 용가재(40)의 홈(10a)이 있는 엔드링(10)의 밑부분을 가열하게 된다.Then, the copper bar 30 is placed vertically with the groove 10a of the end ring 10 and heated with the torch 50 at the bottom of the end ring 10. That is, the bottom portion of the end ring 10 having the groove 10a of the filler metal 40 is heated without directly heating the flame portion of the gas stove 50 to the filler metal 40.

그러면, 엔드링(10)을 회전시키면서 그 가열부분이 일정온도 이상이되면 엔드링(10)의 홈(10a) 내부에 있는 잘게 절단된 용가재(40)가 녹아서 엔드링(10)과 동바(40)를 브레이징시켜 준다.Then, when the heating portion reaches a predetermined temperature or more while rotating the end ring 10, the finely cut filler metal 40 inside the groove 10a of the end ring 10 is melted, and the end ring 10 and the copper bar 40 are melted. Brazing

이상에서 설명한 바와같이, 본 발명은 토치 브레이징시 엔드링 하부를 가열하여 엔드링 자체의 열로써 용가재를 녹여 동바와 엔드링을 브레이징하는 방법을 제공하므로서, 엔드링과 동바가 브레이징되는 부분으로 가스가 스며들거나 기포발생 및 이로 인한 강도저하등의 문제점을 해결하고 브레이징에 대한 신뢰성을 향상시키는 효과가 있다.As described above, the present invention provides a method of melting the filler metal by brazing the copper bar and the end ring by heating the lower end of the end ring when brazing the torch, and heats the end ring itself, thereby allowing the gas to be brazed to the end ring and the copper bar. It is effective in solving problems such as seeping or foaming and resulting strength reduction and improving reliability of brazing.

도 1은 본 발명 동바타입 유도전동기의 브레징구조를 개략적으로 보인 도면.1 is a view schematically showing a brazing structure of a copper bar type induction motor of the present invention.

도 2는 본 발명 동바타입 유도전동기의 브레징 구조의 개략 사시도.Figure 2 is a schematic perspective view of the brazing structure of the present invention copper bar type induction motor.

Claims (1)

유도전동기의 회전자에 브레이징 구조에 있어서,In the brazing structure of the rotor of the induction motor, 동바가 결합되는 엔드링에 홈을 가공하고, 상기 홈으로 잘게 절단된 용가재를 삽입한 다음 그 홈으로 동바를 수직으로 세워두고, 엔드링 밑부분을 가열하여 동바를 엔드링에 브레이징시켜 주는 것을 특징으로 하는 동바 타입 유도전동기의 브레징 방법.Process the groove into the end ring to which the copper bar is coupled, insert the finely cut filler material, and then put the copper bar vertically into the groove, and heats the bottom of the end ring to braze the copper bar to the end ring. Brazing method for a copper rod type induction motor.
KR10-1999-0043772A 1999-10-11 1999-10-11 Brazing method of Cu bar type induction motor KR100476587B1 (en)

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KR100476587B1 true KR100476587B1 (en) 2005-03-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811699A (en) * 2014-12-31 2016-07-27 上海电气集团上海电机厂有限公司 End ring and conduction bar assembly structure of frequency conversion speed regulation motor rotor
CN105798414A (en) * 2014-12-31 2016-07-27 上海电气集团上海电机厂有限公司 Method for brazing gear-shaped end ring and rotor bar
KR20200131386A (en) 2019-05-13 2020-11-24 한국생산기술연구원 Vacuum Brazing Method for Rotor of Motor
US11420280B2 (en) 2019-01-11 2022-08-23 Transportation Ip Holdings, Llc Closed socket brazed joint assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101034585B1 (en) * 2010-07-07 2011-05-12 윤현근 Cover keeping case for truck
CN109834354B (en) * 2019-03-28 2023-12-26 哈尔滨电气动力装备有限公司 Flux-cored brazing method for carbon steel solid magnetic pole and red copper damping ring of synchronous motor and tooling support thereof

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JPS57135659A (en) * 1981-02-12 1982-08-21 Yaskawa Electric Mfg Co Ltd Squirrel cage rotor for motor
JPS5811949U (en) * 1981-07-14 1983-01-25 三菱電機株式会社 squirrel cage rotor
JPH04222446A (en) * 1990-12-25 1992-08-12 Toshiba Corp Squirrel-cage electric rotating machine
JPH08294256A (en) * 1995-04-21 1996-11-05 Toshiba Corp Manufacture of rotor for induction motor
KR19980042261A (en) * 1996-11-15 1998-08-17 기타오카다카시 Rotor of storage cage type induction motor and its manufacturing method
JPH11146614A (en) * 1997-11-06 1999-05-28 Hitachi Ltd Motor rotor and manufacture thereof

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Publication number Priority date Publication date Assignee Title
JPS57135659A (en) * 1981-02-12 1982-08-21 Yaskawa Electric Mfg Co Ltd Squirrel cage rotor for motor
JPS5811949U (en) * 1981-07-14 1983-01-25 三菱電機株式会社 squirrel cage rotor
JPH04222446A (en) * 1990-12-25 1992-08-12 Toshiba Corp Squirrel-cage electric rotating machine
JPH08294256A (en) * 1995-04-21 1996-11-05 Toshiba Corp Manufacture of rotor for induction motor
KR19980042261A (en) * 1996-11-15 1998-08-17 기타오카다카시 Rotor of storage cage type induction motor and its manufacturing method
JPH11146614A (en) * 1997-11-06 1999-05-28 Hitachi Ltd Motor rotor and manufacture thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105811699A (en) * 2014-12-31 2016-07-27 上海电气集团上海电机厂有限公司 End ring and conduction bar assembly structure of frequency conversion speed regulation motor rotor
CN105798414A (en) * 2014-12-31 2016-07-27 上海电气集团上海电机厂有限公司 Method for brazing gear-shaped end ring and rotor bar
CN105798414B (en) * 2014-12-31 2019-04-02 上海电气集团上海电机厂有限公司 A kind of gear shape end ring and rotor bar method for welding
US11420280B2 (en) 2019-01-11 2022-08-23 Transportation Ip Holdings, Llc Closed socket brazed joint assembly
KR20200131386A (en) 2019-05-13 2020-11-24 한국생산기술연구원 Vacuum Brazing Method for Rotor of Motor

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