KR100192227B1 - Emi shielding circuit for car blower motor - Google Patents

Emi shielding circuit for car blower motor Download PDF

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Publication number
KR100192227B1
KR100192227B1 KR1019960007346A KR19960007346A KR100192227B1 KR 100192227 B1 KR100192227 B1 KR 100192227B1 KR 1019960007346 A KR1019960007346 A KR 1019960007346A KR 19960007346 A KR19960007346 A KR 19960007346A KR 100192227 B1 KR100192227 B1 KR 100192227B1
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South Korea
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blower motor
noise
electromagnetic
terminal
conductor
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KR1019960007346A
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Korean (ko)
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KR970065196A (en
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김귀주
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류종열
아시아자동차공업주식회사
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0064Earth or grounding circuit

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

본 발명은 승용차용 블로워모타 전자파차폐회로에 관한 것으로서 더 자세하게는 차량에 탑재되어 실내를 냉난방을 위해 운영하는 블로워모타에 차폐회로를 연결하여 전도되는 전자파노이즈에 의해 타 전기전자류의 기능 장애 및 각종 설비등에 영향을 끼치지 않도록 하여 승원의 안전사고가 미연에 방지되는 회로구성에 관한 것이다.The present invention relates to a blower motor electromagnetic shielding circuit for a passenger car, and more particularly, it is mounted on a vehicle and connected with a shielding motor to a blower motor operating for cooling and heating the room. The present invention relates to a circuit configuration in which safety accidents of occupants are prevented without affecting the facilities.

Description

승용차용 블로워모타 전자파차폐회로Blower motor electromagnetic shielding circuit for passenger cars

제1도는 종래의 블로워모타의 회로구성도.1 is a circuit configuration diagram of a conventional blower motor.

제2도는 본 발명의 회로구성도.2 is a circuit diagram of the present invention.

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

1 : 3단필터 2 : 열전도체1: three-stage filter 2: thermal conductor

3 : 전류유도체 4 : 차폐철판3: current conductor 4: shielded iron plate

5 : 모타속도조절기 NF : 노이즈필터5: Motor speed controller NF: Noise filter

본 발명은 승용차용 블로워모타 전자파차폐회로에 관한 것으로서 더 자세하게는 차량에 탑재되어 실내를 냉난방을 위해 운영하는 블로워모타에 차폐회로를 연결하여 전도되는 전자파노이즈에 의해 타 전기전자류의 기능장애 및 각종설비등에 영향을 끼치지 않도록 하여 승원의 안전사고가 미연에 방지되는 회로구성에 관한 것이다.The present invention relates to a blower motor electromagnetic shielding circuit for a passenger car, and more particularly, a functional impairment of various electric and electronic devices by a electromagnetic wave that is connected to a blower motor mounted on the vehicle and operated for cooling and heating the room. The present invention relates to a circuit configuration in which safety accidents of occupants are prevented without affecting the facilities.

통상적으로 차량의 장착되어 있는 에어콘이나 히터유니트의 히터 블로워모타를 구동시에 전도되는 전자파노이즈로 인해 타 장비비 및 기기의 정상동작에 악영향을 끼치게 되는데 차량 및 항공기의 각종 전자, 전기적 계기류나 보안장치와 엔진 제어기등에 혼입되어 영향을 주게되면 계기판의 지침이 동요되거나 제어기의 오동작에 의해 운행중인 차량이나 항공기에 치명적인 사고의 위험을 발생은 물론 장시간 주행시에는 전자파로 인해 운전자에게 피로감을 더해주게 되며 운전자의 신체적 리듬을 깨트리게 되고 심지어 인체에 치명적인 병을 가져주는 일예를 흔히 볼수 있어 선진국의 각 나라마다 전자파노이즈에 대한 규제범위를 정하여 실행하고 있다.Normally, electromagnetic waves that are conducted when driving a heater blower motor of an air conditioner or a heater unit of a vehicle adversely affect other equipment costs and the normal operation of the equipment. Various electronic, electrical instruments, security devices, and engines of vehicles and aircrafts When mixed and influenced by the controller, the instructions of the instrument panel may be disturbed or the malfunction of the controller may cause a fatal accident to the vehicle or aircraft in operation, as well as the fatigue of the driver due to electromagnetic waves when driving for a long time. It is not uncommon to see an example of breaking a disease and even causing a fatal disease to a human body, and each country of the developed country sets and enforces the scope of regulation on electromagnetic noise.

위와 같은 전자파를 제거하기 위해 발명한 종래의 차량에 사용되는 블로워모타장치에 대한 전자파노이즈 감쇄회로는 제1도에서 보는 바와 같이 히터장치의 블로워모타(M)로부터 방사되어 전도되는 전자파노이즈중에서 고주파대역의 전자파노이즈를 흡수시켜 임피던스를 낮추는 관통형콘덴서(C1)(C2)를 블로워모타(M)의 양측에 접속하고, 관통형콘덴서(C1)(C2)의 다음단에 연결시켜 고주파대역의 잔여 전자파노이즈를 다수개의 코일(L1)(L2)과 세라믹콘덴서(C3-C5)로 이루어진 노이즈필터(NF)로 필터링함으로써 차폐하여 감쇄시키며, 상기의 흡수 및 차폐소자에서 차단되지 않은 전자파노이즈의 광대역의 전자파노이즈는 도선이 1회이상 감겨 열에너지로 변환시키는 열전도체(2)를 통해 흡수 및 차폐시켜 차체로 흘려보내어 방사되어 전도되는 전자파노이즈를 배제시켜 상기의 각 소자들은 차체로 접지함으로 전자파노이즈가 열변환되도록 구성되어 있다.The electromagnetic noise attenuation circuit for the blower motor device used in the conventional vehicle invented to remove the electromagnetic waves is a high frequency band in the electromagnetic wave radiated and conducted from the blower motor (M) of the heater device as shown in FIG. The through-type capacitors (C1) and (C2), which absorb electromagnetic noise of the device and lower the impedance, are connected to both sides of the blower motor (M), and are connected to the next stages of the through-type capacitors (C1) and (C2), thereby remaining electromagnetic waves in the high frequency band The noise is shielded and attenuated by filtering with a noise filter (NF) consisting of a plurality of coils (L1) (L2) and ceramic capacitors (C3-C5), and the electromagnetic wave of the broadband of electromagnetic waves not blocked by the absorption and shielding elements. Noise is absorbed and shielded through the heat conductor 2, which the conductor is wound one or more times, and converted into heat energy. Claim to have been configured such that the electromagnetic noise conversion by each device of the heat are grounded to the vehicle body.

위와 같이 구성된 종래의 히터장치에 대한 전자파노이즈 감쇄회로는 히터장치의 블로워모타(M)내부에 구성된 브러쉬 및 요크코일에서 전자파노이즈가 발생되고, 블로워모타(M)로부터 도선을 통해 전도되는 전자파노이즈는 블로워모타(M)의 양측에 구성된 관통형콘덴서(C1)(C2)를 통과하면서 고주파대역의 전자파노이즈가 흡수하게 되는데 흡수된 전자파노이즈는 차체로 각각 바이패스(bypass)되어 소멸되고, 상기의 관통형콘덴서(C1)(C2)는 블로워모타(M)에 최대한 가깝게 삽입시켜 전자파노이즈의 임피던스를 낮추고 흡수된다.The electromagnetic noise reduction circuit for the conventional heater device configured as described above generates electromagnetic noise from the brush and yoke coil configured inside the blower motor (M) of the heater device, and the electromagnetic noise conducted through the wire from the blower motor (M) is The electromagnetic wave noise of the high frequency band is absorbed while passing through the through-type capacitors (C1) and (C2) formed on both sides of the blower motor (M). The absorbed electromagnetic noise is bypassed by the vehicle body and disappeared. The type capacitors C1 and C2 are inserted as close as possible to the blower motor M to lower the impedance of the electromagnetic noise and are absorbed.

또한 관통형콘덴서(C1)(C2)의 다음단에 다수개의 코일(L1)(L2)와 세라믹콘덴서(C3-C5)로 직·병렬로 이루어진 노이즈필터(NF)에서는 고주파대역의 잔여 전자파노이즈를 필터링시키는데 전자파노이즈의 감쇄량이 큰 차폐재를 사용함으로써 감쇄작용을 하게되며, 노이즈필터(1)에서 인출된 도선을 열전도체(2)에 1회이상 감음으로 전도되는 광대역의 전자파노이즈를 열변환시켜 열에너지로 방출시키며 열전도체(2)를 페라이트코어를 사용하여 1회이상 통과하는 도선을 따라 전도되는 전자파노이즈는 열전도체(2)의 흡수 및 차폐작용에 의해 열에너지로 변환되어 차체로 방출하게 된다. 이와 같이 하여 차량에 탑재되어 난방을 위한 히터유니트의 블로워모타(M)로부터 발생하여 전도되는 전자파노이즈를 상기의 흡수 및 차폐소자를 다단으로 연결하여 접속함으로써 여타 부품이나 전자장치 및 보안부품등의 주요장치에 끼칠 우려가 있는 악 영향을 배제시켜 발생가능한 안전사고로부터 인적·물적피해를 방지시켜 안전한 운행을 도모하고자 하였다.In addition, in the noise filter NF composed of a plurality of coils L1, L2 and ceramic capacitors C3-C5 in series and parallel to the next stage of the through-type capacitors C1 and C2, the residual electromagnetic waves in the high frequency band are removed. Attenuating action is performed by using a shielding material having a large attenuation amount of electromagnetic wave noise for filtering, and thermally converts the electromagnetic wave noise of the broadband conducted by winding the conductor wire drawn out from the noise filter 1 to the thermal conductor 2 or more times to heat energy. Electromagnetic waves, which are emitted and conducted along the conducting wire passing through the heat conductor 2 more than once using a ferrite core, are converted into heat energy by the absorption and shielding action of the heat conductor 2 and emitted into the vehicle body. In this way, the electromagnetic wave noise generated from the blower motor (M) of the heater unit for heating and conducting is connected to the absorber and shielding element in multiple stages, thereby connecting other components, electronic devices, and security parts. It aimed to promote safe operation by preventing human and material damages from possible safety accidents by excluding the negative influences that may affect the equipment.

그러나 종래의 히터유니트에 대한 전자파노이즈 감쇄회로는 블로워모타에서부터 도선을 통해 전도되는 전자파노이즈가 일부분이 제거되지 않은 채 열전도체의 페라이트코아에서 직접차체로 빠져나오면서 각종 전자기기에 영향을 주게되어 완전하게 전자파를 흡수하지 않은 채 방출시키는 문제점이 있다.However, the electromagnetic noise attenuation circuit for the conventional heater unit is completely blown out of the ferrite core of the thermal conductor to the vehicle body without any part of the electromagnetic noise conducted through the conductor from the blower motor, thus affecting various electronic devices. There is a problem of emitting electromagnetic waves without absorbing them.

본 발명은 이와 같은 종래의 제반 문제점을 해결하기 위해 안출한 것으로서 그 목적은 블로워모타로부터 발생되는 전자파를 외부로 빠져나오지 않도록 하여 전자파노이즈에 의한 안전사고를 방지할 수 있도록 하는 데 있다.The present invention has been made to solve the above-mentioned conventional problems, and its object is to prevent the electromagnetic accident generated by the blower motor to escape to the outside to prevent safety accidents caused by electromagnetic noise.

상기와 같은 목적을 달성하고자 본 발명은 블로워모타의 양단자에 세라믹콘덴서를 병렬로 연결시키고, 상기 세라믹콘덴서와 블로워모타의 양극(+)단에 관통형콘덴서를 연결시키며, 상기 관통형콘덴서에 병렬로 코일과 세라믹콘덴서를 직병렬로 구성한 3단필터를 연결시키고, 상기 3단필터의 양극(+)단자와 블로워모타의 음극(-)단자를 열전도체를 연결시키며, 상기 열전도체의 출력단에는 길게 연장시킨 전류유도체의 양(+,-)단자를 꼰형상으로 길게 연장시켜 다수개의 직렬로 저항을 연결하여 블로워모타의 속도를 제어하는 모타속도조절기를 연결시킴을 특징으로 한다.In order to achieve the above object, the present invention connects ceramic capacitors in parallel to both terminals of the blower motor, and connects the through-type capacitor to the positive (+) ends of the ceramic capacitor and the blower motor, and parallel to the through-type capacitor. Connect a three-stage filter composed of a parallel coil and a ceramic capacitor in series, connect the positive terminal of the three-stage filter with the negative terminal of the blower motor, and connect the thermal conductor to the output terminal of the thermal conductor. It extends the positive (+,-) terminal of the extended current conductor in the shape of a braid and connects a motor speed controller to control the speed of the blower motor by connecting a plurality of resistors in series.

이하 첨부된 도면에 의해 본 발명의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention with reference to the accompanying drawings in detail.

본 발명은 다수개의 저항을 직렬로 연결하여 각 저항의 중간접점에 리드회선을 빼내서 스위치에 의해 전원을 보내 블로워모타(M)의 회전속도를 조절하는 모타속도조절기(5)와, 상기의 블로워모타(M)의 양단자에 세라믹콘덴서(C1∼C4)를 병렬로 연결시키고, 상기 세라믹콘덴서(C1∼C4)와 블로워모타(M)의 양극(+)단에 관통형콘덴서(C5)를 연결시키며, 상기 관통형콘덴서(C5)에 코일(L1∼L4)과 세라믹콘덴서(C6,C7)을 직병렬로 구성한 3단필터(1)를 연결시키고, 상기 3단필터(1)의 양극(+)단자와 블로워모타(M)의 음극(-)단자를 열전도체(2)를 연결시키며 출력단에는 길게 연장시킨 전류유도체(3)의 양(+,-)단자를 꼰형상으로 길게 연장시켜 다수개의 직렬로 저항을 연결시킨 모타속도조절기(5)가 구비된 차폐회로를 특징으로 한다.The present invention connects a plurality of resistors in series, pulls out a lead line at an intermediate contact of each resistor, sends a power supply by a switch, and adjusts the rotation speed of the blower motor (M), and the blower motor described above. The ceramic capacitors (C1 to C4) are connected in parallel to both terminals of (M), and the through capacitors (C5) are connected to the anode (+) ends of the ceramic capacitors (C1 to C4) and the blower motor (M). And a three-stage filter (1) in which the coils (L1 to L4) and ceramic capacitors (C6, C7) are formed in series and in parallel with the through-type capacitor (C5), and the anode (+) of the three-stage filter (1). The negative terminal (-) of the terminal and blower motor (M) connects the thermal conductor (2), and the output terminal has a plurality of series by extending the positive (+,-) terminal of the current conductor (3) extended in a long shape. It characterized by a shielding circuit provided with a motor speed regulator (5) connected to the resistance.

이와 같이 구성된 본 발명의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above in detail.

본 발명은 차량의 히터장치와 에어콘장치 및 블로워모타로부터 방사되는 전자파에 의한 전파간섭 사고발생을 줄이기위해 전자파차폐회로를 제2도에서 보는 바와 같이 차량내에 탑재된 블로워모타(M)를 구동하기 위해 스위치를 온(ON)하게 되면 블로워모타(M)의 내부에 브러쉬 및 요크코일에서 전자파 노이즈가 발생하게 되면서 차폐 및 흡수시키는 차폐철판(4)에 밀봉되어 방사되는 것을 차단시키게 되는데 이때 블로워모타(M)의 몸체 브러쉬 양단에 다수개의 세라믹콘덴서(C1∼C4)를 병렬로 나란히 연결시켜 블로워모타(M)로 부터 전도되는 고주파노이즈를 감쇄하며 블로워모타(M)의 양극(+)단자에 연결된 관통형콘덴서(C5)는 전자파노이즈의 임피던스를 최대한 억제하면서 흡수하게 된다.The present invention is to drive the blower motor (M) mounted in the vehicle as shown in Figure 2 to reduce the interference interference caused by electromagnetic waves radiated from the heater device and air conditioner of the vehicle and the blower motor When the switch is turned on, electromagnetic noise is generated from the brush and the yoke coil inside the blower motor (M), and the shield is shielded and shielded from the shielded steel plate (4) to shield and absorb the blower motor (M). A plurality of ceramic capacitors (C1 to C4) are connected to both ends of the body brush in parallel to reduce the high frequency noise conducted from the blower motor (M), and the through type connected to the anode (+) terminal of the blower motor (M). The capacitor C5 absorbs the electromagnetic wave noise while suppressing the impedance as much as possible.

또한, 관통형콘덴서(C5)의 다음단에는 다수개의 코일(L1∼L4)과 세라믹 콘덴서(C6∼C7)를 직렬 또는 병렬로 연결시킨 3단자필터(1)를 구성하여 고주파 대역의 잔여 전자파노이즈를 필터링 시킴과 동시에 일부분의 전자파 노이즈를 열전도체(2)로 보내며 나머지의 일부분 전자파노이즈는 각 소자로부터 접지되어 차체로 연결시킨 접지단자 및 접지선에 연결시켜 전자파를 유도함으로 접지선에 따라 흐르면서 저항 및 방사노이즈를 흡수하게 된다.In addition, a three-terminal filter (1) in which a plurality of coils (L1 to L4) and ceramic capacitors (C6 to C7) are connected in series or in parallel to the next stage of the through-type capacitor (C5) constitutes a residual electromagnetic wave of a high frequency band. At the same time, it transmits a part of electromagnetic noise to the heat conductor (2), and a part of the remaining electromagnetic noise is connected to the ground terminal and the ground line connected to the vehicle body by grounding from each element and induces electromagnetic waves, which flows along the ground line to resist and radiate. It will absorb noise.

열전도체(2)는 3단자필터(1)의 다음단에 연결되며 블로워모타(M)의 음극(-)단자와 연결시키면서 코일을 3회 이상 감아 사용하므로 광대역의 전도노이즈를 열변환하여 차폐시키게 되며 본 발명에서는 열전도체(2)를 페라이트코어를 사용하고 있으며, 열전도체(2)로 유출되는 잔여 전자파노이즈를 완전히 흡수하기 위해 다음단에 전류유도체(3)를 복수번 꼼과 동시에 최대한 길게 연장시키는데 이것은 전류유도체(3)의 특성을 이용하여 내부에 유도되어 흐르는 잔여 전자파노이즈를 차폐시켜 흡수하게 되며 모타속도조절기(5)는 전류유도체(3)의 양극(+)단자에 연결시켜 전원인가로부터 모타의 속도를 원하는 만큼 회전시키기 하도록 저항을 직렬로 연결시킨후 각 저항단자 사이에서 로드회선을 이끌어내어 스위치가 접점됨에 따라 속도가 변환된다.The thermal conductor 2 is connected to the next stage of the three-terminal filter 1, and the coil is wound three or more times while being connected to the negative terminal of the blower motor (M) to shield the thermal conduction noise by converting the broadband. In the present invention, the ferrite core is used as the heat conductor 2, and the current conductor 3 is extended as long as possible at the same time in order to completely absorb the residual electromagnetic noise flowing out of the heat conductor 2. This uses the characteristics of the current inductor (3) to absorb and absorb the residual electromagnetic noise flowing inside the motor speed regulator (5) is connected to the positive terminal of the current inductor (3) from the power supply After connecting the resistors in series to rotate the motor speed as desired, the load circuit is drawn between each resistor terminal and the speed is changed as the switch contacts.

이와 같이 본 발명은 블로워모타의 양단에 세라믹콘덴서를 병렬로 연결시켜 전자파 노이즈를 흡수시키며 관통형콘덴서에서 나오는 전자파노이즈를 3단자필터에 의해 필터링시킨후 열전도체로 열에너지로 변환하여 전류유도체에 흘러보냄으로써 전도성 전자파노이즈가 완전히 흡수되어 차량의 전기 및 전자류의 장치등에 악영향을 차단함으로서 차량운행 도중 블로워모타의 전자파노이즈로 인해 가능한 안전사고를 미연에 방지함과 동시에 전자파노이즈로 인한 운전자 신체리듬을 보호하게 되어 전자파노이즈를 억제시키는 다양한 국제 규격조건에 적극 대처할 수 있는 효과를 얻는다.As described above, the present invention absorbs electromagnetic noise by connecting ceramic capacitors in parallel to both ends of the blower motor, filters the electromagnetic noise from the through-type capacitor by a three-terminal filter, and converts the thermal energy into a thermal conductor and flows it into the current conductor. By completely absorbing the conductive electromagnetic noise, it blocks the adverse effects on the electric and electronic devices of the vehicle, thereby preventing possible accidents caused by the blower motor's electromagnetic noise while driving the vehicle and protecting the driver's body rhythm caused by the electromagnetic noise. The effect is to actively cope with various international standard conditions that suppress electromagnetic noise.

상기에서 살펴본 바와 같이 본 발명은 차량의 블로워모타에서 발생되는 전자파노이즈를 억제하여 장해사고를 방지하게 된다.As described above, the present invention prevents an accident by suppressing electromagnetic noise generated in a blower motor of a vehicle.

Claims (1)

블로워모타(M)의 양단자(+,-)에 세라믹콘덴서(C1∼C4)를 병렬로 연결시킨후 블로워모타(M)의 양극(+)단에 관통형콘덴서(C5)를 연결시키며, 상기 관통형콘덴서(C5)의 양극(+)단자에 3단필터(1)를 코일(L1∼L4)와 세라믹콘덴서(C6,C7)병렬로 연결시키고, 상기 3단자필터의 양극(+)단자와 블로워모타(M)의 음극(-)단자에 열전도체(2)를 연결시키며, 상기 열전도체(2)의 출력단에는 꼰형상을 함과 동시에 길게 연장시킨 전류유도체(4)를 연결하고, 다수개의 직렬로 저항을 연결하여 블로워모타의 속도를 제어하는 모타속도조절기(5)를 연결시킴을 특징으로 하는 승용차용 블로워모타 전자파차폐회로.After connecting ceramic capacitors (C1 to C4) in parallel to both terminals (+,-) of the blower motor (M), and connecting the through-type capacitor (C5) to the anode (+) of the blower motor (M), the The three-stage filter 1 is connected to the coil L1 to L4 and the ceramic capacitors C6 and C7 in parallel with the positive terminal of the through-type capacitor C5, and the positive terminal of the three-terminal filter The heat conductor 2 is connected to the negative terminal (-) of the blower motor (M). The output terminal of the heat conductor 2 is connected to a current conductor 4 extending in length while being braided. Blower motor electromagnetic shielding circuit for passenger cars, characterized in that for connecting the motor speed regulator (5) for controlling the speed of the blower motor by connecting a resistor in series.
KR1019960007346A 1996-03-19 1996-03-19 Emi shielding circuit for car blower motor KR100192227B1 (en)

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KR1019960007346A KR100192227B1 (en) 1996-03-19 1996-03-19 Emi shielding circuit for car blower motor

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KR100192227B1 true KR100192227B1 (en) 1999-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906412B1 (en) 2009-01-06 2009-07-09 임재익 Electromagnetic wave remover for an electric heater

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100310008B1 (en) * 1999-09-30 2001-09-29 류정열 electronic wave intercepting divice of blowmotor for vehicles
KR20010111547A (en) * 2000-06-12 2001-12-19 신영주 Blower motor for preventing electromagnetic waves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906412B1 (en) 2009-01-06 2009-07-09 임재익 Electromagnetic wave remover for an electric heater

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