KR960013544B1 - Compensation apparatus of the motor eccentricity - Google Patents

Compensation apparatus of the motor eccentricity Download PDF

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Publication number
KR960013544B1
KR960013544B1 KR1019930014819A KR930014819A KR960013544B1 KR 960013544 B1 KR960013544 B1 KR 960013544B1 KR 1019930014819 A KR1019930014819 A KR 1019930014819A KR 930014819 A KR930014819 A KR 930014819A KR 960013544 B1 KR960013544 B1 KR 960013544B1
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KR
South Korea
Prior art keywords
eccentricity
gap
assembly
rotor assembly
stator assembly
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Application number
KR1019930014819A
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Korean (ko)
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KR950004687A (en
Inventor
김형수
Original Assignee
엘지전자 주식회사
구자홍
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Priority to KR1019930014819A priority Critical patent/KR960013544B1/en
Publication of KR950004687A publication Critical patent/KR950004687A/en
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Publication of KR960013544B1 publication Critical patent/KR960013544B1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/17Stator cores with permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

This invention relates to the apparatus wherein an assembled body is fixed to keep a given interval between the casing(1) and the rotating axis(3), and the magnets(6a, 6b) are installed on the position which the assembled body and rotating axis are corresponding each other so as to compensate the off-center of the interval(C) by the repulsion of same poles.

Description

전동기의 간극 편심 보상 장치Gap eccentricity compensation device of electric motor

제1도는 종래 전동기의 개략 단면 구성도.1 is a schematic cross-sectional configuration diagram of a conventional electric motor.

제2도는 제1도의 A-A'선에 대한 부분확대 단면도.2 is a partially enlarged cross-sectional view taken along line AA ′ of FIG. 1.

제3도는 본 발명이 적용된 전동기의 전체 단면 구성도.3 is an overall cross-sectional view of the electric motor to which the present invention is applied.

제4도는 제3도의 B-B'선에 대한 부분확대 단면도.4 is a partially enlarged cross-sectional view taken along line B-B 'of FIG.

제5도는 본 발명의 작용 설명도.5 is an explanatory view of the operation of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2 : 고정자 조립체 4 : 회전자 조립체2 stator assembly 4 rotor assembly

6a,6b : 마그네트 21,41 : 고정자, 회전자코어6a, 6b: Magnet 21,41: Stator, rotor core

22,42 : 코일 슬롯22,42: coil slot

본 발명은 전동기의 간극 편심 보상 장치에 관한 것으로, 각 구성품의 가공 및 조립공차에 기인하는 고정자 조립체와 회전자 조립체간의 간극 편심을 자력에 의해 보상함으로써 전동기의 고효율과 저소음을 적극적으로 구현할 수 있도록 한 것이다.The present invention relates to a device for compensating gap eccentricity of an electric motor, and by actively compensating for gap eccentricity between a stator assembly and a rotor assembly due to machining and assembling tolerance of each component by magnetic force, it is possible to actively implement high efficiency and low noise of the motor. will be.

일반적인 전동기는 제1도에 예시한 바와 같이, 케이싱(1)과, 케이싱(1)의 내주면에 고정설치되어 자속을 발생하는 고정자 조립체(2)와, 상기 케이싱(1)에 지지된 회전축(3)의 외면에 고정설치되어 자속과의 상호작용에 의해 회전력을 발생하는 회전자 조립체(4)로 구성되어 있다.As illustrated in FIG. 1, a general electric motor includes a casing 1, a stator assembly 2 fixed to an inner circumferential surface of the casing 1 to generate magnetic flux, and a rotating shaft 3 supported by the casing 1. It is composed of a rotor assembly (4) is fixed to the outer surface of the) generates a rotational force by interaction with the magnetic flux.

상기 고정자 조립체(2)와 회전자 조립체(4)는 각각 제2도에서와 같이, 코어(21,41)의 코일 슬롯(22,42)에 절연지(5a,5b)로 보호된 코일(23,43)을 내장시킨 구성으로 이루어지며, 고정자 조립체(2)와 회전자 조립체(4)사이에서 소정의 간극(C)이 유지되도록 설치되어 있다.The stator assembly 2 and the rotor assembly 4 each have a coil 23, protected by insulating paper 5a, 5b in the coil slots 22, 42 of the cores 21, 41, as shown in FIG. 2. 43, and is provided so that a predetermined gap C is maintained between the stator assembly 2 and the rotor assembly 4.

이러한 전동기에서의 문제점은 상기 간극(C)에 의해 전동기 자체의 효율 저하와 소음이 발생된다는 점이다.The problem with this motor is that the clearance C causes noise reduction and the efficiency of the motor itself.

상기 간극(C)은 고정자 조립체(2)와 회전자 조립체(4)가 접촉되지 않는 범위내에서 가능한한 작을수록 바람직함은 주지와 가등나, 케이싱(1)과 회전축(3)은, 고정자 조립체(2) 및 회전자 조립체(4)를 제작하는 과정에서 허용 범위의 가공 공차가 발생됨은 물론 이들의 조립 과정에서도 필연적으로 공차가 발생되므로 결국 고정자 조립체(2)와 회전자 조립체(4)는 동심도를 유지하지 못함으로써 간극(C)의 불균일 즉 편심을 유발하게 된다.It is preferable that the gap C is as small as possible within the range in which the stator assembly 2 and the rotor assembly 4 are not in contact with each other. However, the casing 1 and the rotation shaft 3 are preferably the stator assembly. In the manufacturing process of the rotor assembly 4 and the machining tolerances in the allowable range, as well as inevitably occur during the assembly process, the stator assembly 2 and the rotor assembly 4 have concentricity. Failure to maintain causes unevenness of the gap C, ie eccentricity.

이러한 간극(C)의 편심은 고정자 조립체(2)와 회전자 조립체(4)의 접촉 및 전기적 소음을 유발하는 주요인을 제공하게 되며, 이에따라 일반적으로 간극(C)을 0.2-1mm 정도로 넓게 설정하고 있으나, 이 경우에는 전동기의 효율이 극도로 저하되는 문제점이 발생된다.This eccentricity of the gap (C) provides a main cause of contact and electrical noise between the stator assembly (2) and the rotor assembly (4), accordingly, the gap (C) is generally set to 0.2-1mm wide In this case, there is a problem that the efficiency of the motor is extremely reduced.

따라서 본 발명에서는 고정자 조립체와 회전자 조립체의 제작, 조립과정에서 발생하는 편심을 동극끼리 반발하는 자성으로 보상함으로써 전동기의 효율을 극대화 함과 동시에 소음을 최소화할 수 있게 된 각극 편심 보상 장치를 제공함에 그 목적이 있다.Accordingly, the present invention provides an angular pole eccentric compensation device that can maximize the efficiency of the motor and minimize the noise by compensating the eccentricity generated during the manufacturing and assembly of the stator assembly and the rotor assembly with the magnetic repulsion. The purpose is.

이하에서 상기 목적을 효과적으로 달성하는 본 발명의 바람직한 실시예를 종래와 동일한 부분, 부재에 대해 동일 부재 부호를 부여한 첨부 도면에 의해 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention which effectively achieve the above object will be described in detail with reference to the accompanying drawings in which like parts and members are assigned the same members.

제3도는 본 발명이 적용된 전동기를 나타낸 것으로, 고정자 조립체(2)와 회전자 조립체(4)의 서로 대향하는 위치에 동극끼리 근접되도록 마그네트(6a,6b)를 설치하여서 된 것이다.3 shows an electric motor to which the present invention is applied, and is provided by installing magnets 6a and 6b such that the poles are close to each other at opposite positions of the stator assembly 2 and the rotor assembly 4.

상기 마그네트(6a,6b)는 제4도에서와 같이 코일 슬롯(22,42)의 내측에 고정되는 걸림부(6a',6b')를 형성하여 분리 방지되도록 설치한 것으로 도시하였으나, 이외의 다양한 고정 방법이 강구될 수 있음은 물론이며, 어떠한 경우이든 서로 반발할 수 있도록 설치되어야 한다.The magnets 6a and 6b are shown to be installed to prevent separation by forming catches 6a 'and 6b' fixed inside the coil slots 22 and 42 as shown in FIG. Of course, the fixing method can be taken, and in any case, it must be installed to be able to repel each other.

이와같은 본 발명은 고정자 조립체(2)와 회전자 조립체(4) 및 케이싱(1), 회전축(3)의 제작, 조립 과정에서 편심이 발생하여 고정자 조립체(2)와 회전자 조립체(4)간의 간극(C) 불균형이 유발됨은 전기와 같다.As described above, in the manufacturing and assembling of the stator assembly 2, the rotor assembly 4, the casing 1, and the rotation shaft 3, eccentricity occurs between the stator assembly 2 and the rotor assembly 4. The gap (C) imbalance is caused by electricity.

다만, 본 발명에서는 고정자 조립체(2)와 회전자 조립체(4)에 형성된 코일 슬롯(22,42)의 개구부(24,44)에 마그네트(6a,6b)가 설치되어 간극(C)의 편심을 보상하게 된다.However, in the present invention, the magnets 6a and 6b are installed in the openings 24 and 44 of the coil slots 22 and 42 formed in the stator assembly 2 and the rotor assembly 4, thereby preventing the eccentricity of the gap C. To compensate.

즉, 고정자 조립체(2)에 설치된 마그네트(6a)와 회전자 조립체(4)에 설치된 마그네트(6b)는 제5도에서와 같이 동극끼리 근접되도록 설치되어 있으므로 양 마그네트(6a,6b)는 동극 반발력에 의해 서로 f,f'측으로 반발하게 되며, 이때 고정자 조립체(2)는 케이싱(1)에 고정설치되어 있으므로 회전자 조립체(4)가 고정된 회전축(3)의 유극(shaft play)측으로 반발력이 작용하게 됨으로써 회전축(3)을 중심으로한 고정자 조립체(2)와 회전자 조립체(4)의 간극(C) 편심을 보상하게 된다.That is, the magnets 6a provided in the stator assembly 2 and the magnets 6b provided in the rotor assembly 4 are installed to have their poles close to each other as shown in FIG. 5, so that both magnets 6a and 6b have the same polar repulsive force. Repulsion to each other by f, f 'side, the stator assembly (2) is fixed to the casing (1), so the repulsive force toward the shaft play side of the rotating shaft (3) to which the rotor assembly (4) is fixed This acts to compensate for the gap C eccentricity between the stator assembly 2 and the rotor assembly 4 about the rotation axis 3.

이와같은 본 발명에 의하면, 고정자 조립체(2)와 회전자 조립체(4)의 간극(C) 편심을 마그네트(6a,6b)의 동극 반발력에 의해 균일한 동심도를 유지하도록 보상하게 되므로, 전동기의 주요특성 즉, 고효율과 저소음을 구현할 수 있게 된다.According to the present invention, the gap (C) eccentricity between the stator assembly (2) and the rotor assembly (4) is compensated to maintain a uniform concentricity by the same polar repulsive force of the magnets (6a, 6b), the main motor That is, high efficiency and low noise can be realized.

Claims (1)

케이싱(1)과 회전축(3)에 소정의 간극(C)을 유지하도록 설치되는 고정자 조립체(2)와 회전자 조립체(4)의 서로 근접 대응하는 위치에, 동극 반발력에 의해 상기 간극(C)의 편심을 보상하도록 마그네트(6a,6b)를 설치하여서 된 것을 특징으로 하는 전동기의 간극 편심 보상 장치.The gap C is formed by the same polar repulsion force at a position corresponding to each other of the stator assembly 2 and the rotor assembly 4 provided to maintain a predetermined gap C on the casing 1 and the rotation shaft 3. The gap eccentricity compensation device of the electric motor, characterized in that the magnet (6a, 6b) is provided to compensate for the eccentricity of.
KR1019930014819A 1993-07-31 1993-07-31 Compensation apparatus of the motor eccentricity KR960013544B1 (en)

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Application Number Priority Date Filing Date Title
KR1019930014819A KR960013544B1 (en) 1993-07-31 1993-07-31 Compensation apparatus of the motor eccentricity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930014819A KR960013544B1 (en) 1993-07-31 1993-07-31 Compensation apparatus of the motor eccentricity

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KR950004687A KR950004687A (en) 1995-02-18
KR960013544B1 true KR960013544B1 (en) 1996-10-07

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KR1019930014819A KR960013544B1 (en) 1993-07-31 1993-07-31 Compensation apparatus of the motor eccentricity

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