KR870000273Y1 - Arrangement for starting motor - Google Patents

Arrangement for starting motor Download PDF

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Publication number
KR870000273Y1
KR870000273Y1 KR2019840008317U KR840008317U KR870000273Y1 KR 870000273 Y1 KR870000273 Y1 KR 870000273Y1 KR 2019840008317 U KR2019840008317 U KR 2019840008317U KR 840008317 U KR840008317 U KR 840008317U KR 870000273 Y1 KR870000273 Y1 KR 870000273Y1
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KR
South Korea
Prior art keywords
motor
current
relay
arrangement
field
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KR2019840008317U
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Korean (ko)
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KR860003201U (en
Inventor
박성무
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주식회사금성사
허신구
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Priority to KR2019840008317U priority Critical patent/KR870000273Y1/en
Publication of KR860003201U publication Critical patent/KR860003201U/en
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Publication of KR870000273Y1 publication Critical patent/KR870000273Y1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • Y10S388/903—Protective, e.g. voltage or current limit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/909—Monitoring means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

내용 없음.No content.

Description

모우터 계자전류의 이상 검출 회로Abnormality detection circuit of motor field current

제1도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

제2도는 본 고안의 설명을 위한 계자전류 특성 곡선도.Figure 2 is a field current characteristic curve for the description of the present invention.

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

10 : 전류제한부 MG : 마그네트 스위치10: current limiting part MG: magnet switch

FC : 계자코일 ZD1, ZD2: 제너다이오드FC: Field coil ZD 1 , ZD 2 : Zener diode

PCD1: 발광소자 PC1: 수광소자PCD 1 : Light emitting element PC 1 : Light receiving element

본 고안은 본 출원인이 앞서 제안한 바 있는 실용신안 등록출원 번호 81-5089호를 진보개량하여 승강기용 직류 모우터의 운전효율을 더욱 향상시킬 수 있도록 한 모우터 계자전류의 이상 검출회로에 관한 것이다.The present invention relates to an abnormality detection circuit of a motor field current to improve the operation efficiency of a lift DC motor by improving the utility model registration application No. 81-5089 previously proposed by the present applicant.

종래의 검출방법에 있어서는 하나의 제너다이오드만으로서 전류를 제한하도록 구성되어져 있는 것이여서 제2도에 도시한 바와 같이 공급 계자자전류량에 의하여 온(ON), 오프(OFF)되는 시점(A)이 동일하여 시점(A)부근의 전류치에서는 모우터가 자주 온·오프 상태로 되어 승강기의 운전효율이 크게 저하 될뿐만 아니라 모우터의 수명을 단축시키는 문제점이 있었다.In the conventional detection method, since only one zener diode is configured to limit the current, as shown in FIG. 2, a time point A is turned on and off by the amount of supply field current. In the same way, at the current value near the viewpoint A, the motor is frequently turned on and off, which greatly reduces the operating efficiency of the elevator and has a problem of shortening the life of the motor.

본 고안은 이와같은 점을 감안하여 모우터의 기동 스위치를 온하더라도 계자전류가 적당치 이하에서는 마그네트 스위치가 동작이 안되어 모우터의 전기자에 전원공급이 차단되도록 하고, 일단, 모우터의 전기자에 전원이 인가된 후 모우터의 계자전류가 감소되어 제2도의 시점(B)에 이르게 될때 모우터의 전기자의 공급전원이 차단되도록 하여 운전 효율을 높일 수 있도록 안출한 것으로 이를 첨부도면에 의하여 상술하면 다음과 같다.In view of the above, the present invention, even when the start switch of the motor is turned on, the magnet switch does not operate when the field current is below a suitable value, so that the power supply to the armature of the motor is cut off. After this is applied, when the field current of the motor is reduced to reach the point B of FIG. 2, the power supply of the armature of the motor is cut off so that the operation efficiency can be increased. Same as

전원(E1) 양단에, 모우터 기동스위치(SW1), 릴레이(Ry)의 a접점(RY1) 및 마그네트 스위치(MG)를 직렬로 연결하고, 또한 계자코일 저항(FCR), 계자코일(FC)을 직렬 연결한다.Connect the motor start switch SW 1 , the contact a RY 1 of the relay Ry, and the magnet switch MG in series at both ends of the power supply E 1 , and further, the field coil resistance FCR and the field coil. Connect (FC) in series.

전류 제한부(10)는 릴레이(RY)의 각 a, b접점(RY2), (RY3)에 각각 제너다이오드(ZD1, ZD2)를 직렬 접속하고, 이들은 상호 벙렬접속하여 구성하며, 릴레이 구동부는 공지한 바와 같이 저항(R2, R3), 콘덴서(C1), 다이오드(D1),트랜지스터(TR1, TR2) 및 수광소자(PC1)로 연결 구성한다.The current limiting unit 10 connects the zener diodes ZD 1 and ZD 2 in series with each of the a, b contacts RY 2 and (RY 3 ) of the relay RY, and they are connected in parallel to each other. As is well known, the relay driver includes a resistor R 2 , R 3 , a capacitor C 1 , a diode D 1 , a transistor TR 1 , TR 2 , and a light receiving element PC 1 .

미설명 부호 E2는 릴레이 구동부 공급전원이다. 이와같이 구성된 본 고안의 작용효과를 설명하면 다음가 같다.Reference numeral E 2 is a relay driver power supply. Referring to the effect of the present invention configured as described above is as follows.

제1도에 있어 계자코일(FC)에 정격 전류가 흐르게 되면 계자 코일저항(FCR)에서 검출된 전압은 가변저항(VR1)과 분압용 저항(R1)에 의해 분압되어 상기한 전류 제한부(10)에 인가된다.In FIG. 1, when the rated current flows through the field coil FC, the voltage detected by the field coil resistance FCR is divided by the variable resistor VR 1 and the voltage dividing resistor R 1 to limit the current. Is applied to (10).

이때 릴레이(Ry)는 구동되지 않는 상태이어서 그의 b접점(Ry3)은 접속되어 있으므로, 분배된 전압은 b접점(Ry3) 및 제너다이오드(ZD2)를 통하여 발광소자 (PCD1)를 턴 온시키므로 수광소자(PC1) 온 상태가 되어 트랜지스터(TR1)를 부도통시키므로 트랜지스터(TR2)는 도통하여 릴레이(Ry)는 구동하게 된다.At this time, since the relay Ry is not driven and its b contact Ry 3 is connected, the divided voltage turns on the light emitting device PCD 1 through the b contact Ry 3 and the zener diode ZD 2 . Since the light is turned on, the light-receiving element PC 1 is turned on so that the transistor TR 1 is not conducting. Thus, the transistor TR 2 is turned on to drive the relay Ry.

릴레이(Ry)가 구동되면 이로인하여 그의 a접점(Ry2)는 접속되고, b접점(Ry3)은 개방되어, 이때에는 분베 전압이 a접점(Ry2) 및 제너다이오드(ZD1)를 통하여 상기한 발광소자(PCD1)에 인가되므로, 상기한 회로 동작과 동일하게 릴레이(Ry)는 계속해서 구동상태를 유지하게 되므로 그의 a접점(Ry1)은 접속 상태를 유지한다.This causes the relay Ry to be driven so that its a contact Ry 2 is connected and the b contact Ry 3 is open, whereby the Bunbe voltage is connected via the a contact Ry 2 and the zener diode ZD 1 . Since it is applied to the light emitting device PCD 1 , the relay Ry continues to be driven in the same manner as the above-described circuit operation, and thus, the contact a of Ry 1 maintains the connected state.

이와같은 상태에서 모우터 기동스위치(SW)를 누르게 되면 마그네트 스위치(MG)가 동작하여 모우터의 전기자에 전원이 공급된다.When the motor start switch SW is pressed in this state, the magnet switch MG is operated to supply power to the armature of the motor.

여기에서 제2도는 모우터 계자전류의 상한치와 하한치를 나타낸 것으로, 계자전류가 시점(A)에 이르기전까지는 모우터 기동 스위치(SW)를 온시키고 모우터가 동작하지 않게 되다가 일단 시점(A)이상이되면 제너다이오드(ZD2)가 도통이 되어 모우터가 동작하게 된다.Here, FIG. 2 shows the upper and lower limits of the motor field current. The motor start switch SW is turned on and the motor is not operated until the field current reaches time A. If abnormal, the zener diode (ZD 2 ) is conductive, the motor is operated.

그러다가 이상 상태 발생등으로 인하여 계자전류가 감소하여 낮은 시점(B)이하로 되면 제너다이오드(ZD1)를 도통시키지 못하므로 릴레이(Ry)가 구동을 중단하게 되어 그의 a접점(Ry1)이 개방되므로 모우터는 정지하게 된다.Then, when the field current decreases due to an abnormal state or the like and becomes lower than the low point B, the zener diode ZD 1 cannot be conducted, so the relay Ry stops driving and the contact a 1 Ry 1 is opened. The motor will stop.

이상에서와 같이 동작하는 본 고안은 모우터의 동작 전류를 상한치, 하한치로 구분설정하여 동작시키게 되므로서 모우터의 운전효율 및 수명을 높일뿐만 아니라 정격 전류보다 너무 낮다든지 계자 권선의 단선 유무등도 아울러 검출할 수 있는 효과가 있는 것이다.The present invention, which operates as described above, operates by setting the operating current of the motor into an upper limit value and a lower limit value, thereby increasing the operating efficiency and life time of the motor as well as the presence or absence of disconnection of the field winding or the field current winding. In addition, there is a detectable effect.

Claims (1)

계자 코일의 전류조정용 저항(FCR)에서 검출된 전압을 조정하는 공지한 가변저항(VR1)과 발광소자(PCD1) 사이에 릴레이(Ry)의 a, b접점(Ry2), (Ry3)을 제너다이오드(ZD1), (ZD2)에 각각 직렬 접속하여서 된 전류제 한부(10)를 연결하여서 구성된 모우터 계자 전류의 이상검출 회로.A, b contacts Ry 2 and (Ry 3 ) of the relay Ry between the known variable resistor VR 1 and the light emitting element PCD 1 for adjusting the voltage detected by the current adjusting resistor FCR of the field coil. ) Is an abnormal detection circuit of a motor field current configured by connecting a current limiting unit 10 connected in series with the zener diodes ZD 1 and ZD 2 , respectively.
KR2019840008317U 1984-08-24 1984-08-24 Arrangement for starting motor KR870000273Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019840008317U KR870000273Y1 (en) 1984-08-24 1984-08-24 Arrangement for starting motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019840008317U KR870000273Y1 (en) 1984-08-24 1984-08-24 Arrangement for starting motor

Publications (2)

Publication Number Publication Date
KR860003201U KR860003201U (en) 1986-03-31
KR870000273Y1 true KR870000273Y1 (en) 1987-02-11

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KR2019840008317U KR870000273Y1 (en) 1984-08-24 1984-08-24 Arrangement for starting motor

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KR860003201U (en) 1986-03-31

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