KR930002738Y1 - Brushless dc motor - Google Patents

Brushless dc motor Download PDF

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Publication number
KR930002738Y1
KR930002738Y1 KR2019900019092U KR900019092U KR930002738Y1 KR 930002738 Y1 KR930002738 Y1 KR 930002738Y1 KR 2019900019092 U KR2019900019092 U KR 2019900019092U KR 900019092 U KR900019092 U KR 900019092U KR 930002738 Y1 KR930002738 Y1 KR 930002738Y1
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KR
South Korea
Prior art keywords
width
motor
coil excitation
comparator
hall element
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KR2019900019092U
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Korean (ko)
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KR920013931U (en
Inventor
김영훈
정석태
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만도기계 주시회사
정몽주
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Priority to KR2019900019092U priority Critical patent/KR930002738Y1/en
Publication of KR920013931U publication Critical patent/KR920013931U/en
Application granted granted Critical
Publication of KR930002738Y1 publication Critical patent/KR930002738Y1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

내용 없음.No content.

Description

무정류자 직류전동기(Brushless D.C Motor)Brushless D.C Motor

제1도는 본 고안의 무정류자직류전동기 일부절개 정면도.Figure 1 is a front view of a partial cutaway of the rectifier DC motor of the present invention.

제2도는 본 고안의 코일여자폭조절방법을 나타낸 회로도.2 is a circuit diagram showing a coil excitation width adjusting method of the present invention.

제3도는 본 고안의 코일여자폭조절에 따른 파형도.3 is a waveform diagram according to the coil excitation width control of the present invention.

제4a,b도는 종래의 무정류자직류전동기의 코일여자폭조절장치의 개략구조도.4A and 4B are schematic structural diagrams of a coil excitation width adjusting device of a conventional rectifier DC motor.

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

11 : 본체 12 : 프린트기판11 body 12 printed board

13 : 홀소자 14 : 비교기13: Hall element 14: Comparator

15 : 가변저항기15: variable resistor

본 발명은 무정류자직류전동기에 관한것으로서, 특히 코일의 여자폭을 선택조정하여 코일이용율을 높이므로서 전동기자체의 효율을 향상시킬수 있도록한 무정류자직류전동기에 관한 것이다.The present invention relates to a non-commutator DC motor, and more particularly, to a non-commutator DC motor that can improve the efficiency of the electric motor by increasing the coil utilization rate by selectively adjusting the excitation width of the coil.

종래의 무정류자직류전동기의 코일여자폭을 조절하는 장치로서는 제4도에 도시한 바와같이 전동기본체(1)의 축(2)에 극성검출판(3)을 회동가능하게 축설하되, 극성검출판(3)의 주연부에 및검출부(4)와 빛차단부(3)를 형성하여 전동기본체(1)의 축(2)이 회동함에 따라 이에 축설된 극성검출판(3)이 회동함으로써 극성검출판(3)이 회전자의 위치를 감지하는 극성감지센서(6)로부터 감지하여 회전자의 위치를 감지하는 신호를 발생하도록 구성되었다. 이와같이 코일여자폭의 조정을 본체(1)의 축(2)이 회동함에 따라, 축(2)에 축설된 극성검출판(3)과, 극성감지센서(6)간의 거리를 조정하는 기계적인 구조로 구성하였기 때문에 크기가 커지며 센서를 고가인 광센서를 사용함에 따른 제품코스트의 상승과, 안정성 및 정확도면에서 불안한 요인을 갖는 문제점이 있었다.As a device for adjusting the coil excitation width of a conventional non-commutator DC motor, as shown in FIG. 4, the polarity detecting plate 3 is rotatably arranged on the shaft 2 of the transmission main body 1, and the polarity detecting plate is rotated. At the periphery of (3), the light detecting portion 3 and the light blocking portion 3 are formed so that the shaft 2 of the transmission main body 1 rotates so that the polarity detecting plate 3 stored therein rotates. (3) is configured to generate a signal for detecting the position of the rotor by detecting from the polarity sensor 6 for detecting the position of the rotor. In this way, as the shaft 2 of the main body 1 rotates the coil excitation width, a mechanical structure for adjusting the distance between the polarity detecting plate 3 and the polarity sensing sensor 6 arranged on the shaft 2 is adjusted. Since the size is increased, there is a problem that the rise of the product cost and the unstable factors in terms of stability and accuracy due to the use of an expensive optical sensor.

본 고안은 상기한 종래의 제문제점을 해결하기 위하여 회전자의 위치를 감지하는 홀소자(Hall Element)와 코일여자폭조정을 위한 가변저항기 및 비교기로 이루어진 구동회로를 프린트회로판에 구성하여 코일여자폭조정을 함으로써 제품의 소형화 및 신뢰도를 가일층 향상시킬수 있도록 안출한 것으로서 이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다. 전동기본체(11) 내부의 프린트기판(12)에 제2도에서와 같이 회전자의 위치를 감지하기 위한 센서인 홀소자(13)와 코일여자폭 조정을 하기 위한 기준전압 발생장치인 가변저항기(15)와 상기 홀소자(13) 및 가변저항기(15)의 출력신호를 비교하여 코일여자폭을 결정하는 비교기(14)를 연결하여 구성된 것이다.In order to solve the above-mentioned problems, the present invention comprises a driving circuit composed of a Hall element for detecting the position of the rotor and a variable resistor and a comparator for adjusting the coil excitation width in a printed circuit board to form a coil excitation width. By making adjustments to reduce the size and reliability of the product to further improve the present invention will be described in detail by the accompanying drawings as follows. As shown in FIG. 2, the hall element 13, which is a sensor for detecting the position of the rotor, and the variable resistor, which is a reference voltage generator, for adjusting the coil excitation width, 15) and the comparator 14 for determining the coil excitation width by comparing the output signal of the Hall element 13 and the variable resistor 15 is configured.

이와같이 구성된 본 고안의 회전자의 위치를 감지하기 위해 사용한 홀소자(13)를 영구자석계자의 변화에 대해서 제3도에서와 같은 출력전압을 얻는 (a)와 같은 신호를 비교기(14)의 한쪽 입력단에 연결하고 다른 입력에는 가변저항기(15)를 이용하여 출력폭을 결정하는 가변직류전압(b)을 입력시킨다. 이와같이 연결되어 전동기의 구동시 비교기(14)의 파형을 보면 제3도에서와 같이 원래 홀소자(13) 출력폭이 90°로 기준전압(d)인 것을 본 고안의 가변저항기(15)를 이용하면 출력폭의 직류전압(c)은 원래 출력폭인 기준전압(d) 보다 적게한 경우이고, 출력폭의 직류전압(c′)은 원래 출력폭의 기준전압(d) 보다 크게한 경우등으로 가변시킬수 있는 것이다. 이에 대응한 입력시그날의 출력폭 직류전압(c)에 대응한 출력시그날은 직류전압(E)의 폭으로 가변하고, 입력시그날의 출력폭 직류전압(d)(c′)에 대응하는 출력시그날은 직류전압(f)(g)의 폭으로 가변할수 있는 것이다. 이상 설명한 바와같이 홀소자의 가변저항기 및 비교기를 전동기본체내의 회로기판에 간단한 회로구성으로 종래의 기계식에 의한 검출방식의 문제점을 개선함으로써 제품의 신뢰도 향상 및 소형화를 도모할 수 있는 매우 유용한 고안인 것이다.One side of the comparator 14 receives a signal such as (a) in which the Hall element 13 used to sense the position of the rotor of the present invention configured as described above obtains the output voltage as shown in FIG. It is connected to an input terminal and the other input is inputted with a variable DC voltage b for determining an output width using the variable resistor 15. As shown in FIG. 3, the output width of the original Hall element 13 is 90 ° and the reference voltage d is used as the variable resistor 15 of the present invention. When the direct current voltage (c) of the output width is smaller than the reference voltage (d) which is the original output width, the direct current voltage (c ') of the output width is larger than the reference voltage (d) of the original output width. It can be changed. The output signal corresponding to the output width DC voltage (c) of the input signal corresponding to this varies with the width of the DC voltage (E), and the output signal corresponding to the output width DC voltage (d) (c ') of the input signal is It is possible to vary the width of the DC voltage (f) (g). As described above, the variable resistor and comparator of the Hall element is a very useful design that can improve the reliability and miniaturization of the product by improving the problem of the conventional detection method by a simple circuit configuration on the circuit board in the motor body. .

Claims (1)

전동기본체(11)의 내부에 설치된 프린트기판(12)상에 코일여자폭조절을 영구자석계자의 변화에 따라 출력전압을 얻는 홀소자(13)와 설정전압을 비교하는 비교기(14)를 연결하고, 이 비교기(14)에는 코일여자폭조정을 위한 기준전압발생장치인 가변저항기(15)를 연결하여 코일여자폭을 가변시킬수 있도록 구성됨을 특징으로 하는 무정류자 직류전동기.Connect the comparator 14 comparing the set voltage with the Hall element 13 which obtains the output voltage according to the change of the permanent magnet field on the printed circuit board 12 installed inside the motor body 11. And the comparator 14 is connected to a variable resistor 15, which is a reference voltage generator for adjusting the coil excitation width, so as to vary the coil excitation width.
KR2019900019092U 1990-12-05 1990-12-05 Brushless dc motor KR930002738Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900019092U KR930002738Y1 (en) 1990-12-05 1990-12-05 Brushless dc motor

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Application Number Priority Date Filing Date Title
KR2019900019092U KR930002738Y1 (en) 1990-12-05 1990-12-05 Brushless dc motor

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KR920013931U KR920013931U (en) 1992-07-27
KR930002738Y1 true KR930002738Y1 (en) 1993-05-19

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