KR20050108881A - Multi-step resistor having a blower motor protection function from overload - Google Patents

Multi-step resistor having a blower motor protection function from overload Download PDF

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Publication number
KR20050108881A
KR20050108881A KR1020040034103A KR20040034103A KR20050108881A KR 20050108881 A KR20050108881 A KR 20050108881A KR 1020040034103 A KR1020040034103 A KR 1020040034103A KR 20040034103 A KR20040034103 A KR 20040034103A KR 20050108881 A KR20050108881 A KR 20050108881A
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South Korea
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blower motor
resistor
overload
motor
fuse
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KR1020040034103A
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Korean (ko)
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최인섭
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동아전기부품 주식회사
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Priority to KR1020040034103A priority Critical patent/KR20050108881A/en
Publication of KR20050108881A publication Critical patent/KR20050108881A/en

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/50—Joints or other connecting parts
    • E06C7/505—Anchors being adapted to fix a ladder to a vertical structure, e.g. ladder hooks

Abstract

과부하시 블로워모터 보호기능을 갖는 다단 저항기는 저항의 병렬조합에 의한 블로워모터 속도 다단제어시 저항기 과부하로부터 모터를 보호하기 위한 것이다. 본 발명은 저항기내 블로워모터 전원의 양(+)의 단자측에 단락수단으로 퓨즈를 설치하여, 과부하시 히트싱크의 발열에 의해 퓨즈를 오픈시켜 전원을 차단하도록 구성된다. 따라서, 본 발명은 모터 전원의 음(-)의 단자 대신 양(+)의 단자측을 단락시키므로써, 저항이 병렬조합되는 속도 제어에서 과부하시 모터의 전원을 차단하여 모터를 보호할 수 있는 효과를 제공한다.Multi-stage resistors with blower motor protection in case of overload protect the motor from resistor overload during blower motor speed multi-stage control by parallel combination of resistors. The present invention is configured to install a fuse on a positive terminal side of a blower motor power supply in a resistor by a short circuit means, and open the fuse by heat generation of the heat sink in case of overload, thereby shutting off the power supply. Therefore, the present invention short-circuits the positive terminal instead of the negative terminal of the motor power supply, thereby protecting the motor by shutting off the power supply of the motor during overload in speed control in which resistances are combined in parallel. To provide.

Description

과부하시 블로워모터 보호기능을 갖는 다단 저항기{Multi-step resistor having a blower motor protection function from overload}Multi-step resistor having a blower motor protection function from overload}

본 발명은 블로워모터 속도 다단제어용 저항기에 관한 것으로서, 특히 저항기 과부하시 히트싱크의 발열에 의해 퓨즈(fuse)가 오픈(open)되어 모터의 전원을 차단시켜 모터를 보호할 수 있도록 한 과부하시 블로워모터 보호기능을 갖는 다단 저항기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resistor for blower motor speed multi-stage control, and in particular, a blower motor during an overload, in which a fuse is opened by heat generation of a heat sink when the resistor is overloaded, which cuts off the power supply of the motor. A multi-stage resistor having a protective function.

자동차 등의 에어컨이나 히터에는 냉·온풍강제공급수단으로서, 팬 및 팬을 구동하는 블로워모터(Blower Motor)와, 이와 전기적으로 연결되어 블로워모터의 회전속도를 조절함으로써, 송풍량을 다단으로 조절하는 블로워모터 저항기가 설치되어 있다.A blower motor for controlling a fan and a blower motor for driving a fan and a fan as a cold / hot air forced supply means, and electrically connected to the air conditioner or a heater for controlling a blower air in multiple stages. Motor resistors are installed.

도 1a-1b는 종래 블로워모터 저항기의 구성을 나타낸다. 1A-1B show the configuration of a conventional blower motor resistor.

도 1a-1b에 나타낸 바와 같이, 블로워모터(M)(10)의 동작은 속도제어스위치(40)에 의해 속도제어된다. 속도제어스위치(40)는 다수의 접점들(LO,ML,MH,HI)에 접속하고 저항들(R1,R2,R3)을 병렬조합하여 블로워모터(10) 속도를 다단제어한다. 즉, 1단의 경우 속도제어스위치(40)를 최저작동위치(LO)에 고정시키면 블로워모터(10)로 흐르는 전류는 세개의 저항(R1,R2,R3)에 의해 제한되어 흐르게 된다. 2단의 경우 속도제어스위치(40)를 중,저작동위치(ML)에 고정시키면 블로워모터(10)로 흐르는 전류는 두개의 저항(R1,R2)에 의해 제한된다. 3단의 경우 속도제어스위치(40)를 중,고작동위치(MH)에 고정시키면 전류는 하나의 저항(R1)을 통해 전류제한되어 블로워모터(10)로 흐르게 된다. 4단의 경우 속도제어스위치(40)를 중,저작동위치(ML)에 고정시키면서 최저작동위치(LO)와 고작동위치(HI)를 서로 연결하여 저항을 병렬조합하면 전류는 저항()에 의해 제한되고, 5단의 경우 속도제어스위치(40)를 중,고작동위치(MH)에 고정시키면서 중,저작동위치(ML)와 고작동위치(HI)를 서로 연결하여 저항을 병렬조합하면 전류는 저항()에 의해 제한된다. 6단의 경우 속도제어스위치(40)를 중,고작동위치(MH)에 고정시키면서 중,저작동위치(ML)와 고작동위치(HI)를 서로 연결하고 최저작동위치(LO)와 중,고작동위치(MH)를 서로 연결하여 저항을 병렬조합하면 전류는 저항()에 의해 제한되고, 7단의 경우 속도제어스위치(40)를 고작동위치(HI)에 고정시키면 전류제한없이 블로워모터(10)가 최고속도로 작동되도록 전류가 흐르게 된다.As shown in FIGS. 1A-1B, the operation of the blower motor M 10 is speed controlled by the speed control switch 40. The speed control switch 40 is connected to a plurality of contacts LO, ML, MH, HI and multi-stage control of the blower motor 10 by combining the resistors R1, R2, and R3 in parallel. That is, in the case of the first stage, when the speed control switch 40 is fixed to the lowest operating position LO, the current flowing to the blower motor 10 is restricted by three resistors R1, R2, and R3. In the second stage, when the speed control switch 40 is fixed to the middle and low operating positions ML, the current flowing to the blower motor 10 is limited by two resistors R1 and R2. In the third stage, when the speed control switch 40 is fixed to the middle and high operating positions MH, the current is limited through the one resistor R1 and flows to the blower motor 10. In the case of the fourth stage, when the speed control switch 40 is fixed to the middle and low operating positions (ML), and the minimum operating position (LO) and the high operating position (HI) are connected to each other and the resistance is combined in parallel, the current becomes a resistance ( In the case of the fifth stage, the resistance is paralleled by connecting the middle and low operating position (ML) and the high operating position (HI) while fixing the speed control switch 40 to the middle and high operating positions (MH). In combination, the current is Limited by). In the case of the sixth stage, while the speed control switch 40 is fixed to the middle and high operating positions (MH), the middle and low operating positions (ML) and the high operating positions (HI) are connected to each other, and the minimum operating position (LO) and the middle, When the high operating position (MH) is connected to each other and the resistance is combined in parallel, the current In the case of the seventh stage, when the speed control switch 40 is fixed to the high operating position HI, current flows so that the blower motor 10 operates at the maximum speed without current limitation.

속도제어스위치(40)의 고작동위치(HI)와 저항(R1) 사이에는 단락수단으로 퓨즈(FUSE)가 연결되어, 저항기(20) 과부하시 블로워모터(10) 전원의 음(-)의 단자를 단락시켜 전원을 차단한다.A fuse (FUSE) is connected between the high operating position (HI) of the speed control switch (40) and the resistor (R1) by means of a short circuit, so that the negative terminal of the power supply of the blower motor (10) when the resistor (20) is overloaded. Disconnect the power by shorting it.

하지만, 위와 같은 종래 블로워모터 저항기는 퓨즈가 고작동위치(HI)에만 있으므로 모터구속시 단락이 되어도 저항이 병렬조합되는 4, 5 및 6단에서는 단락이 되지 않아 모터에 과부하가 걸려 파손이 되는 문제가 있다.However, in the conventional blower motor resistors as described above, since the fuse is located only at the high operating position (HI), even if a short circuit occurs during motor restraint, the short circuit does not occur in the 4th, 5th and 6th stages where the resistors are combined in parallel so that the motor is overloaded and damaged. There is.

따라서, 본 발명의 목적은 전술한 점을 감안하여 안출된 것으로서, 저항기내 블로워모터 전원의 양(+)단자에 퓨즈를 설치하고 히트싱크의 발열에 의해 퓨즈가 오픈되도록 하여 저항기 과부하시 브로워모터 전원의 양(+)단자를 단락시켜 저항의 병렬조합에 상관없이 과부하로부터 모터를 보호할 수 있도록 하는 과부하시 블로워모터 보호기능을 갖는 다단 저항기를 제공함에 있다.Accordingly, an object of the present invention has been made in view of the above-mentioned point, the fuse motor is installed in the positive terminal of the blower motor power supply in the resistor and the fuse is opened by the heat generation of the heat sink, so that the blower motor power supply when the resistor is overloaded. It is to provide a multi-stage resistor with a blower motor protection function during overload that short-circuits the positive terminal to protect the motor from overload regardless of parallel combination of resistors.

이와 같은 목적을 달성하기 위한 본 발명의 과부하시 블로워모터 보호기능을 갖는 다단 저항기는, 블로워모터 속도를 다단제어하는 저항기에 있어서, 다수의 저항들과, 상기 저항을 병렬조합하여 상기 블로워모터 속도를 다단제어하는 속도제어스위치, 및 과부하시 상기 블로워모터 양(+)의 전원 단자를 단락시키는 퓨즈를 포함한다.In order to achieve the above object, a multi-stage resistor having a blower motor protection function during an overload of the present invention is a resistor for controlling a blower motor speed in multiple stages, wherein the plurality of resistors and the resistor are combined in parallel to adjust the blower motor speed. And a fuse for shorting the blower motor positive (+) power terminal in case of overload.

이하, 첨부한 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 기술하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2a-2b는 본 발명에 따른 과부하시 블로워모터 보호기능을 갖는 다단 저항기의 구성을 보여준다. 도 2a에 보여진 다단 저항기(50)는 다수의 저항들(R1,R2,R3), 저항들(R1,R2,R3) 사이에 인출된 접점들(LO.ML,MH,HI)에 접속되어 블로워모터(10) 속도를 제어하는 속도제어스위치(40), 및 블로워모터(10)의 양(+)의 전원 단자측에 설치되는 단락수단인 퓨즈(FUSE)로 구성된다. 여기에서, 퓨즈(FUSE)는 저항기(50)내 히트싱크의 발열을 이용하여 오픈(open)되도록 적정위치에 설치된다. Figure 2a-2b shows the configuration of a multi-stage resistor having a blower motor protection function during overload according to the present invention. The multi-stage resistor 50 shown in FIG. 2A is connected to a plurality of resistors R1, R2, R3, and the contacts LO.ML, MH, HI drawn between the resistors R1, R2, R3 and blowers. The speed control switch 40 which controls the speed of the motor 10, and the fuse FUSE which is a short circuit means provided in the positive power supply terminal side of the blower motor 10 are comprised. Here, the fuse FUSE is installed at an appropriate position so as to be opened by using the heat generation of the heat sink in the resistor 50.

도 2b는 전원(30) 접속단이 수용되는 다단 저항기(50)의 베이스 플레이트를 보여준다. 도 2b는 도 1b의 종래 저항기(20)의 베이스 플레이트에 전원(30)의 양(+)단자가 접속되기 위한 입출력(IN/OUT)단이 더 형성된다.2B shows the base plate of the multistage resistor 50 in which the power supply 30 connection end is received. FIG. 2B further includes an input / output (IN / OUT) terminal for connecting the positive terminal of the power supply 30 to the base plate of the conventional resistor 20 of FIG. 1B.

도 2에서, 속도제어스위치(40)를 조작하여 최저작동위치(LO)에 고정시키면 블로워모터(10)의 구동전류는 "LO"단자에 입력되고 이는 세개의 저항(R1,R2,R3)을 통해 전류제한되어 블로워모터(10)에 출력되고, 속도제어스위치(40)를 조작하여 중,저작동위치(ML)에 고정시키면 블로워모터(10)의 구동전류는 "ML"단자에 입력되고 이는 두개의 저항(R1,R2)을 통해 전류제한되어 블로워모터(10)로 출력되며, 속도제어스위치(40)를 중,고작동위치(MH)에 고정시키면 전류는 "MH"단자에 입력되고 이는 하나의 저항(R1)을 통해 전류제한되어 블로워모터(10)로 출력되고, 고작동위치(HI)에 고정시키면 전류는 "HI"단자에 입력되어 전류제한없이 블로워모터(10)로 출력되어 블로워모터가 풀스피드로 작동된다. 그 밖에 단자들(LO,ML,MH)을 서로 연결하여 저항이 병렬조합되는 4, 5 및 6단 제어의 경우 블로워모터(10)의 구동전류는 병렬조합된 저항들을 통해 전류제한되어 블로워모터(10)로 출력된다.In Fig. 2, when the speed control switch 40 is manipulated to fix it to the lowest operating position LO, the drive current of the blower motor 10 is input to the "LO" terminal, which causes three resistors R1, R2 and R3 to be applied. When the current is limited and output to the blower motor 10, and the speed control switch 40 is operated to fix the medium and low operating positions ML, the drive current of the blower motor 10 is input to the “ML” terminal. Current is limited through two resistors R1 and R2 and output to the blower motor 10. When the speed control switch 40 is fixed to the middle and high operating positions MH, the current is input to the "MH" terminal. Current is limited through one resistor R1 and output to the blower motor 10. When the motor is fixed at the high operating position HI, the current is input to the “HI” terminal and output to the blower motor 10 without current limitation. The motor is running at full speed. In addition, in the case of 4, 5 and 6 stage control in which the resistors are combined in parallel by connecting the terminals LO, ML, and MH, the driving current of the blower motor 10 is limited by the current through the parallel combined resistors. Outputted as 10).

이때, 저항소자의 온도상승에 의한 발열로 인해 저항기(50)에 과부하가 걸리면 저항기(50)내 히트싱크(미도시)의 발열로 인하여 퓨즈(FUSE)가 오픈(open)된다. 퓨즈(FUSE)가 오픈되면, 주전원(30)과 블로워모터(10) 사이의 양(+) 전원 입출력(IN/OUT)단이 단락되게 되어 블로워모터(10)로의 전원을 차단한다.At this time, if the resistor 50 is overloaded due to the heat generated by the temperature rise of the resistance element, the fuse FUSE is opened due to the heat generation of a heat sink (not shown) in the resistor 50. When the fuse FUSE is open, the positive power input / output (IN / OUT) terminal between the main power supply 30 and the blower motor 10 is short-circuited to cut off power to the blower motor 10.

상술한 바와 같이, 본 발명의 과부하시 블로워모터 보호기능을 갖는 다단 저항기는, 저항기 과부하시 모터전원의 양(+)단을 히트싱크의 발열을 이용하여 퓨즈를 오프시켜 전원을 차단하므로써, 저항의 병렬조합에 의한 속도 제어에 상관없이 저항기 과부하로부터 모터를 보호할 수 있는 효과를 갖는다.As described above, the multi-stage resistor having a blower motor protection function in case of overload of the present invention is applied by turning off the fuse by turning off the fuse by using heat generation of the heat sink when the resistor is overloaded. It can protect the motor from resistor overload regardless of speed control by parallel combination.

도 1a-1b는 종래 블로워모터 속도 다단제어용 저항기를 나타낸 회로도 및 접속판,1a-1b is a circuit diagram and a connection plate showing a conventional blower motor speed multi-stage control resistor,

도 2a-2b는 본 발명에 따른 과부하시 블로워모터 보호기능을 갖는 다단 저항기를 나타내는 회로도 및 접속판.2A-2B are a circuit diagram and a connection board showing a multi-stage resistor having a blower motor protection function during overload according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 블로워모터 20,50 : 저항기10: blower motor 20,50: resistor

30 : 전원 40 : 속도제어스위치30: power supply 40: speed control switch

FUSE : 퓨즈 R1∼R3 : 저항FUSE: Fuse R1 to R3: Resistance

Claims (3)

블로워모터 속도를 다단제어하는 저항기에 있어서,In a resistor for controlling the blower motor speed in multiple stages, 다수의 저항들;Multiple resistors; 상기 저항을 병렬조합하여 상기 블로워모터 속도를 다단제어하는 속도제어스위치; 및A speed control switch for controlling the blower motor speed in multiple stages by combining the resistors in parallel; And 과부하시 상기 블로워모터 양(+)의 전원 단자를 단락시키는 퓨즈를 포함하는 과부하시 블로워모터 보호기능을 갖는 다단 저항기.A multi-stage resistor having a blower motor protection function during an overload including a fuse that short-circuits the positive power terminal of the blower motor when the overload is overloaded. 제 1항에 있어서, 상기 퓨즈는 상기 저항기의 히트싱크 발열을 이용하여 오픈(open)됨을 특징으로 하는 과부하시 블로워모터 보호기능을 갖는 다단 저항기.The multistage resistor of claim 1, wherein the fuse is opened by using a heat sink heat of the resistor. 제 1항에 있어서, 상기 저항기는 상기 속도제어스위치의 접속단자와 양(+)의 전원 입/출력단자를 수용함을 특징으로 하는 과부하시 블로워모터 보호기능을 갖는 다단 저항기.The multistage resistor of claim 1, wherein the resistor accommodates a connection terminal of the speed control switch and a positive power input / output terminal.
KR1020040034103A 2004-05-14 2004-05-14 Multi-step resistor having a blower motor protection function from overload KR20050108881A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811733B1 (en) * 2006-12-13 2008-03-14 동아전기부품 주식회사 Blower motor control structure of air-conditioner
WO2012033793A2 (en) * 2010-09-07 2012-03-15 Williams Kevin R Two speed direct drive drawworks
KR20180022544A (en) * 2016-08-23 2018-03-06 한온시스템 주식회사 Resistance device for a blower motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811733B1 (en) * 2006-12-13 2008-03-14 동아전기부품 주식회사 Blower motor control structure of air-conditioner
WO2012033793A2 (en) * 2010-09-07 2012-03-15 Williams Kevin R Two speed direct drive drawworks
WO2012033793A3 (en) * 2010-09-07 2012-05-31 Williams Kevin R Two speed direct drive drawworks
KR20180022544A (en) * 2016-08-23 2018-03-06 한온시스템 주식회사 Resistance device for a blower motor

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