KR890005916Y1 - Brushless motor - Google Patents

Brushless motor Download PDF

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Publication number
KR890005916Y1
KR890005916Y1 KR2019860018961U KR860018961U KR890005916Y1 KR 890005916 Y1 KR890005916 Y1 KR 890005916Y1 KR 2019860018961 U KR2019860018961 U KR 2019860018961U KR 860018961 U KR860018961 U KR 860018961U KR 890005916 Y1 KR890005916 Y1 KR 890005916Y1
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KR
South Korea
Prior art keywords
stator
brushless motor
permanent magnet
rotor
motor
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Application number
KR2019860018961U
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Korean (ko)
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KR880010791U (en
Inventor
조두만
Original Assignee
삼성전자부품주식회사
임경춘
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Priority to KR2019860018961U priority Critical patent/KR890005916Y1/en
Publication of KR880010791U publication Critical patent/KR880010791U/en
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Publication of KR890005916Y1 publication Critical patent/KR890005916Y1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Abstract

내용 없음.No content.

Description

브러시리스 모우터Brushless motor

제1도는 본 고안의 단면도.1 is a cross-sectional view of the present invention.

제2도는 제1도의 A-A선 개략단면도이다.2 is a schematic cross-sectional view taken along the line A-A of FIG.

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

1 : 영구자석 2 : 하우징1: permanent magnet 2: housing

3 : 축 4 : 고정자3: axis 4: stator

5 : 부시 6 : 베이스판5: bush 6: base plate

7 : 환상규소강판 8 : 위상감지용홀소자7: annular silicon steel sheet 8: phase sensing hall element

9 : 위치감지용홀소자 10 : PCB9: position sensing hole element 10: PCB

11 : 폴마그네트11: pole magnet

본 고안은 브러시를 갖지 않은 브러시리스 모우터에 관한 것으로 특히, 고정자의 코아를 플라스틱 사출물로 형성시킨 브러시리스 모우터에 관한 것이다.The present invention relates to a brushless motor having no brush, and more particularly to a brushless motor in which the core of the stator is formed of a plastic injection molding.

일반적으로, 브러시리스 모우터는 일반모우터의 고정자와 회전자를 뒤바꿔 놓은 구조로 되어있는데, 전기 기계적 노이즈가 작고 고속도 특성이 뛰어나 퍼스컴의 프로피디스크장치, 레코드, 플레이어, VTR, 정지화상 기록장치 등의 전자기기나 프린터, 전동타이프라이터등의 사무기기, 정보기기등에 사용되고 있으며, 특히 우주산업에 사용되는 특수기기에도 이용되는등 광범위에 걸쳐 사용되고 있다.In general, the brushless motor has a structure in which the stator and the rotor of the general motor are inverted, and the electromechanical noise is small and the high speed characteristics are excellent, thereby allowing the personal computer's profile disk device, recorder, player, VTR, and still image recording device. It is used in office equipment and information equipment such as electronic devices, printers, and electric typewriters, and is widely used in special equipment used in the aerospace industry.

한편, 브러시리스 모우터의 원리는 회전자에는 영구자석을 사용하고 고정자에는 전기자도체를 사용함으로써 영구자석과 철심사이에 생기는 힘으로 이루어진 토오크를 얻게 되는데, 이때 모우터에는 위치감지기 및 위상감지기가 설치되어 회전자의 위치를 검출하고, 토오크각이 항상가 되는 위치에 고정자계가 형성되도록 전기자 권선에 흐르는 전류를 절환시켜 주게되어 있다.On the other hand, the principle of the brushless motor is to use a permanent magnet for the rotor and the armature conductor for the stator to obtain a torque consisting of the force generated between the permanent magnet and the iron core, where the position sensor and phase detector are installed in the motor The position of the rotor, and the torque angle is always The current flowing through the armature winding is switched so that the stator field is formed at the position where.

즉, 상기 감지기들을 통해 영구자석의 자기신호를 전기신호로 변환시켜 전자회로로 제어함으로서 회전자의 속도를 일정한 속도로 제어하고, 또한 토오크각이 항상인 회전자계를 얻을 수 있게되는 것이다.That is, by controlling the electronic signal by converting the magnetic signal of the permanent magnet into an electrical signal through the detectors, the speed of the rotor is controlled at a constant speed, and the torque angle is always It is possible to obtain a rotating magnetic field.

그런데, 상기와 같은 원리로 작동하게 되는 종래의 브러시리스 모우터는 고정자코아에다 직접 권선을 해놓기 때문에 고정자코아의 모서리부분에 자속이 몰리게 되는 자속몰림현상이 발생하게 되며, 이러한 자속몰림현상을 방지하기 위해서 고정자에다 보극을 설치하거나 폴슈우(Pole Shoe)를 제작해야 하기 때문에 고정자코아의 금형을 특수하게 제작하여야하고, 또한 권선작업을 함에 있어서도 고정밀도의 권선기를 이용해야만 하는 문제점이 있었다.By the way, the conventional brushless motor which operates on the principle as described above causes a magnetic flux drooping phenomenon in which magnetic flux is gathered at the corners of the stator core because the winding is directly made on the stator core, and thus preventing the magnetic flux drooping phenomenon. In order to install the poles on the stator or to manufacture pole shoe (Pole Shoe) in order to make a special mold of the stator core, and also in the winding work there was a problem that must use a high-precision winding machine.

이에, 본 고안에서는 상기와 같은 문제점을 해결하기 위하여 모우터의 고정자코아를 플라스틱사출물로 형성시켜 줌으로써 자속몰림현상을 방지하고 모우터의 중량을 가볍게하며, 특히 원가를 절감할 수 있는 브러시리스 모우터를 제공하는데 그 목적이 있다.In this invention, in order to solve the above problems, by forming the stator core of the motor as a plastic injection to prevent magnetic flux drift phenomenon, light weight of the motor, in particular, brushless motor that can reduce the cost The purpose is to provide.

이하, 본 고안의 구성 및 작용효과를 예시된 도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation of the present invention will be described in detail based on the illustrated drawings.

본 고안은 회전자용 영구자석(1)을 하우징(2)을 통해 축(3)과 연결시키고, 고정자(4)는 부시(5)를 통해 베이스판(6)과 결합시키되 상기 고정자(4)는 플라스틱을 사출하여 형성시켜주면서 그 내측에는 환상규소강판(7)을 부착시켜주는 한편, 상기 베이스판(6)위에는 위치감지용 홀소자(8)와 위상감지용 홀소자(9)가 설치된 PCB(10)를 부착시키고, 상기 하우징(2)의 일측에는 폴마그네트(11)를 설치해 농은 구조로 되어있다.The present invention connects the rotor permanent magnet (1) with the shaft (3) through the housing (2), the stator (4) is coupled to the base plate (6) through the bush (5), but the stator (4) While the plastic is injected and formed, the annular silicon steel sheet 7 is attached to the inside thereof, while the base plate 6 is provided with a PCB having a position sensing hall element 8 and a phase sensing hall element 9. 10) is attached, the pole magnet 11 is provided on one side of the housing (2), and the farm is structured.

상기와 같은 구조로 된 본 고안은 고정자(4)를 플라스틱 사출물로 형성시켜줌으로써 자속몰림 현상을 방지하는 동시에 권선작업을 용이하게 할 수 있다.The present invention having the structure as described above can facilitate the winding operation while preventing the magnetic flux droop phenomenon by forming the stator (4) with a plastic injection molding.

한편, 제1,2도를 통하여 본 고안 브러시리스 모우터의 동작원리에 대해 설명하면, 고정자(4)에 권선된 코일에 전류가 흐르면 전류의 방향에 따라 자장이 형성되고, 상기 고정자(4)의 일측코일에서 나오는 자속은 제2도의 화살표시와 같이 영구자석(1)을 통하여 타측코일로 들어가서 환상규소강판(7)을 통하여 다시 일측코일로 들어가는 자로를 형성시키게 되며, 이때 고정자(4)의 코일은 영구자석(1)으로 부터 발생되는 자속에 의해 힘을 받게되는데, 즉 영구자석(1)의 자극으로부터 발생하는 자속과 코일에 의한 자속이 서로 작용하면서 반발력 또는 흡인력을 발생시켜 고정자(4)가 회전력을 받게된다.On the other hand, when the operation principle of the brushless motor of the present invention through the first and second degrees will be described, when a current flows in the coil wound on the stator 4, a magnetic field is formed in the direction of the current, the stator (4) The magnetic flux coming from one side coil of the magnetic pole enters the other coil through the permanent magnet (1) as shown by the arrow of FIG. 2 and forms a magnetic path entering the one side coil again through the annular silicon steel sheet (7). The coil is subjected to the force by the magnetic flux generated from the permanent magnet (1), that is, the magnetic flux generated from the magnetic pole of the permanent magnet (1) and the magnetic flux by the coil acts together to generate a repulsive force or suction force to stator (4) Will receive torque.

한편, 고정자(4)측에 발생하는 힘의 반력은 회전자가 발생하는 자속에 생기고, 결국 그 용출구인 영구자석 회전자에 힘이 발생하게 되어 회전자가 회전하게 된다.On the other hand, the reaction force of the force generated on the stator 4 side is generated in the magnetic flux generated by the rotor, and the force is generated in the permanent magnet rotor, which is its elution outlet, so that the rotor rotates.

이때, 상기 위치감지용 홀소자(8)는 회전자인 영구자석(1)의 회전에 따른 폴마그네트(10)의 자장을 검출하여 펄스신호를 발생시켜 줌으로써 전자회로를 통해 회전자의 속도 변동을 방지하는 것이며, 또한 고정자(4)의 중심부내측에 부착시킨 환상규소강판(7)은 영구자석(1)과 고정자(4) 사이에 자로를 형성시켜 주는 역할을 한다.At this time, the position detecting hall element 8 detects the magnetic field of the pole magnet 10 according to the rotation of the permanent magnet 1, which is the rotor, to generate a pulse signal to prevent the speed variation of the rotor through the electronic circuit In addition, the annular silicon steel sheet 7 attached to the inner side of the center of the stator (4) serves to form a magnetic path between the permanent magnet (1) and the stator (4).

상기와 같이 본 고안은 모우터의 고정자(4)를 플라스틱으로 사출시키고 자로형성을 위해 환상규소강판(7)을 설치시킴으로써 종래 고정자코아로 인해 발생되던 자속몰림 현상을 방지하고, 고정자(4)의 권선을 용이하게 할 수 있으며, 특히 모우터의 코아제작시 원가를 절감할 수 있는 효과가 있다.As described above, the present invention prevents the magnetic flux droop caused by the stator core by injecting the stator 4 of the motor into plastic and installing the annular silicon steel sheet 7 to form the magnetic path, and the stator 4 The winding can be facilitated, and in particular, the cost can be reduced when the motor is co-fabricated.

Claims (1)

회전자에는 영구자석을 사용하고, 고정자에는 전기자도체를 사용하여 영구자석과 고정자코아 사이에 생기는 힘으로 구동되게 되는 브러시리스 모우터에 있어서, 상기 모우터의 고정자(4)는 플라스틱 사출물로 되면서 그 내측에 환상규소강판(7)이 부착되어진 것을 특징으로 하는 브러시리스 모우터.In the brushless motor, which is driven by a force generated between the permanent magnet and the stator core by using a permanent magnet for the rotor and an armature conductor for the stator, the stator 4 of the motor is made of a plastic injection molding. Brushless motor, characterized in that the annular silicon steel sheet (7) is attached to the inside.
KR2019860018961U 1986-11-29 1986-11-29 Brushless motor KR890005916Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860018961U KR890005916Y1 (en) 1986-11-29 1986-11-29 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860018961U KR890005916Y1 (en) 1986-11-29 1986-11-29 Brushless motor

Publications (2)

Publication Number Publication Date
KR880010791U KR880010791U (en) 1988-07-28
KR890005916Y1 true KR890005916Y1 (en) 1989-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860018961U KR890005916Y1 (en) 1986-11-29 1986-11-29 Brushless motor

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KR880010791U (en) 1988-07-28

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