KR940005122Y1 - Pct resistor for blower motor - Google Patents
Pct resistor for blower motor Download PDFInfo
- Publication number
- KR940005122Y1 KR940005122Y1 KR92007957U KR920007957U KR940005122Y1 KR 940005122 Y1 KR940005122 Y1 KR 940005122Y1 KR 92007957 U KR92007957 U KR 92007957U KR 920007957 U KR920007957 U KR 920007957U KR 940005122 Y1 KR940005122 Y1 KR 940005122Y1
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- South Korea
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- blower motor
- resistance element
- current
- current control
- ptc
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
Abstract
내용 없음.No content.
Description
제1도는 종래의 블로워모터의 전류제어장치와 모터속도제어 스위치를 도시한 사시도.1 is a perspective view showing a current control device and a motor speed control switch of a conventional blower motor.
제2도는 종래의 블로워모터 전류제어를 설명하기 위한 회로도.2 is a circuit diagram for explaining conventional blower motor current control.
제3도는 PTC저항소자의 온도-저항의 관계를 도시한 다이아그램.3 is a diagram showing a temperature-resistance relationship of a PTC resistance element.
제4도는 종래의 블로워모터 전류제어장치에 사용된 PTC(Positive Temperature Coefficient)저항소자를 도시한 개략도.4 is a schematic diagram showing a positive temperature coefficient (PTC) resistance element used in a conventional blower motor current control apparatus.
제5도는 본 고안의 블로워모터 전류제어장치의 전류제어용 저항소자를 보인 분리사시도.Figure 5 is an exploded perspective view showing a resistance element for controlling the current of the blower motor current control device of the present invention.
제6도는 본 고안의 측단면도.6 is a side cross-sectional view of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 속도제어스위치 2 : 저항어셈블리코일1: Speed control switch 2: Resistor assembly coil
3 : PTC저항소자 4 : 방열판3: PTC resistance element 4: Heat sink
5 : 통기공 6 : 구리 또는 알루미늄외체5: ventilation hole 6: copper or aluminum
7~9 : PTC저항소자 10 : 비전해질용액7 ~ 9: PTC resistance element 10: Non-electrolyte solution
11 : 덮개11: cover
본 고안은 블로워모터(BLower Motor)가 사용되는 가전기기에 있어서, 블로워모터의 속도를 제한하는 장치의 전류제어용 저항소자에 관한 것으로서, 특히 높은 방열계수를 갖도록 함으로써 시스템의 오동작을 방지할수 있도록한 블로워모터 속도에저장치의 전류제어용 저항소자에 관한 것이다.The present invention relates to a resistor for controlling current of a device for limiting the speed of a blower motor in a home appliance in which a blower motor is used, and in particular, a blower capable of preventing malfunction of the system by having a high heat radiation coefficient. The present invention relates to a resistance element for controlling the current of a motor speed lower device.
제1도는 종래의 블로워모터의 전류제어장치 및 모터속도 제어스위치를 도시한 것으로써, 블로워모터의 전류제어장치에 저항 어셈블리코일(2)을 채용하여 사용자가 원하는 모터속도를 제어하도록 하였다.FIG. 1 shows a current control device and a motor speed control switch of a conventional blower motor. The resistor assembly coil 2 is employed in the current control device of the blower motor to control a desired motor speed.
이를 더욱 구체적으로 설명하면, 제2도에 도시된 바와같이 블로워모터의 동작은 속도제어스위치(1)에 의해 제어되는바, 속도제어스위치(1)를 "I" 위치 즉 최저작동위치(L0)에 고정시키면, 블로워모터(M)로 흐르는 전류는 세개의저항코일(R1, R2, R3)에 의해 제한되어 흐르게 되고, 속도제어장치(1)를 "Ⅱ"위치, 즉 중,저 작동위치(ML)에 고정시키면, 블로워모터(M)로 흐르는 전류는 두개의 저항코일(R1, R2)에 의해 제한되며, "Ⅲ"위치, 즉 중, 고 작동위치(MH)에 고정시키면 전류는 하나의 저항코일(R1)을 통해 전류제한되어 블로워모터(M)로 흐르게 되고, "IIII"위치, 즉 고 작동위치(HI)에 고정시키면, 전류제한없이 블로워모터가 최고속도로 작동되도록 전류가 흐르게 된다.More specifically, as shown in FIG. 2, the operation of the blower motor is controlled by the speed control switch 1, and the speed control switch 1 is moved to the "I" position, that is, the lowest operating position L0. When fixed to, the current flowing to the blower motor M is restricted by three resistance coils R 1 , R 2 , and R 3 , and the speed controller 1 is moved to the " II " When fixed in the operating position ML, the current flowing to the blower motor M is limited by two resistance coils R 1 and R 2 and fixed in the "III" position, i.e., the medium and high operating position MH. Then, the current is limited by the current through one resistor coil (R 1 ) and flows into the blower motor (M). Current flows as much as possible.
이와같이된 종래의 블로워모터의 전류제어장치에서 사용되는 저항 어셈블리코일(2)은 니켈-크롬의 합금형으로 되어 있고, 코일 표면에는 납으로 실링(sealing)되어 과열을 방지하도록 하였다.The resistive assembly coil 2 used in the current control device of the conventional blower motor is thus made of an alloy of nickel-chromium, and is sealed with lead on the coil surface to prevent overheating.
그러나 이러한 코일은 120℃이 온도를 초과할 경우, 발열에 의해 실링된 코일외부가 떨어져 나가게 되고 니켈-크롬코일의 과열로 인해 자체단락됨으로써 그 즉시 저항 어셈블리코일(2)가 일체로된 블로워 제어장치를 교체하지 않으면 전체시스템이 오동작하거나 사용이 불가능하게 되고, 아울러 저항 어셈블리코일(2)의 부피로 인해 제품의 경량, 소형화에 한계를 가져오며, 제조공정이 복잡해지고 문제점이 있었다.However, when the coil exceeds 120 ° C., the blower outside the sealed coil is separated by heat and short-circuited due to overheating of the nickel-chromium coil. If it is not replaced, the whole system malfunctions or becomes impossible to use, and the volume of the resistance assembly coil 2 brings a limitation to the light weight and miniaturization of the product, and the manufacturing process is complicated and has problems.
이를 해결하기 위하여, 종래에는 니켈-크롬코일 대신에 제3도에 도시된 정 온도계수 특성을 갖는 PCT(Positive Temperature Coefficient)저항 소자를 이용하는 방법이 개발되었다.In order to solve this problem, a method of using a positive temperature coefficient (PCT) resistive element having positive temperature coefficient characteristics shown in FIG. 3 instead of nickel-chromium coil has been developed.
제4도는 종래의 블로워모터 전류제어장치에 사용된 PCT저항소자를 도시한 개략도로서, PTC저항소자(3)를 방열판(4)중앙에 고정시키고 상기 방열판(4) 전, 후면이 통기되도록 PTC저항소자(3) 주변에 다수의 통기공(5)을 형성하여 PTC저항소자(3)의 발열을 억제하도록 함으로써 방열을 높이도록 하였다.4 is a schematic diagram showing a PCT resistance element used in a conventional blower motor current control device. The PTC resistance element 3 is fixed to the center of the heat sink 4 and the PTC resistance is vented before and after the heat sink 4. A plurality of vent holes 5 are formed around the element 3 to suppress heat generation of the PTC resistance element 3 to increase heat dissipation.
그러나 이는 PTC저항소자가 발열하기 시작하면 열을 외부로 급속히 방출하지 못하게 되어 냉각효과가 충분하게 보장되지 않음으로써, 설정된 전류보다 낮은 전류상태에서 발열되고, 이는 제3도에 도시된 PTC저항소자의 특성효과에 의해 회로의 전원이 차단되는 경우가 발생되었다.However, when the PTC resistance element starts to generate heat, it does not rapidly dissipate heat to the outside and the cooling effect is not sufficiently ensured. Therefore, the PTC resistance element generates heat at a current lower than the set current. Due to the characteristic effect, the circuit power was cut off.
본 고안의 목적은 PTC저항소자에 높은 방열계수를 갖도록 함으로써, 시스템 전체에 안정된 전원을 공급할수 있도록하여 시스템이 오동작되지 않도록 하고, 회로부품이 손상되지 않도록 한것이다.The object of the present invention is to provide a stable power supply to the entire system by having a high heat dissipation coefficient for the PTC resistor, so that the system does not malfunction and the circuit components are not damaged.
본 고안의 다른 목적은 제품의 경량, 소형화에 일조할 수 있고 제조공정의 단순성을 제공할수 있도록 한것이다.Another object of the present invention is to contribute to the light weight and miniaturization of the product and to provide simplicity of the manufacturing process.
상기 목적을 달성하기 위하여, 외곽이 요철면으로 형성되고 상부가 개구된 함체형상의 구리 또는 알루미늄 외체와, 그 내부에 소정간격으로 이격배치된 각 PTC소자와, 상기 외체내부에 충진되는 비전해질 액체와, 상기 외체의 개구부를 복개시키는 덮개로 이루어짐을 특징으로 한다.In order to achieve the above object, the outer shell is formed of an uneven surface and the upper portion of the enclosure-shaped copper or aluminum outer body, each PTC element spaced at a predetermined interval therein, and the non-electrolyte liquid filled in the outer body and It is characterized by consisting of a cover for covering the opening of the outer body.
이하, 첨부된 제5도에 의해 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the attached FIG.
통상의 블로워모터 전류제어장치의 전류제어용 저항소자에 있어서, 냉각효과를 높이기 위해 외곽이 요철면으로 형성되고, 상부가 개구된 함체형상의 구리 또는알루미늄 외체(6)를 형성하고, 그 내부에 PTC저항소자(7~9)를 소정의 간격으로 이격배치되도록 내장시키며, 상기 외체(6)내부에 열전도도가 뛰어난 비전해질용액(10)을 충전시킨 다음, 상기 외체(6) 상부의 개구부를 덮개(11)로 복개시키도록 하여서된 것이다.In the current control resistance element of a blower motor current control device, in order to enhance the cooling effect, an outer surface is formed with an uneven surface, and an enclosure-shaped copper or aluminum outer body 6 having an upper portion is formed, and a PTC is formed therein. The resistors 7 to 9 are disposed to be spaced apart at predetermined intervals, and the non-electrolyte solution 10 having excellent thermal conductivity is filled in the outer body 6, and then the opening of the upper part of the outer body 6 is covered ( 11) to submit to.
이와같이 구성된 본 고안의 작용, 효과를 설명하면 다음과 같다.Referring to the operation, effects of the present invention configured as described above are as follows.
제6도에 도시된 바와같이 통상의 속도제어장치(1)를 조작하여 최저작동위치(Ⅰ)에 고정시키면, 블로워모터의 구동전류는 "L0"단자에 입력되고 이는 세개의 PTC저항소자(7~9)를 통해 전류제한되어 상기 블로워모터에 출력(out)되고, 속도제어스위치(1)를 조작하여 중, 저작동위치(ML)에 고정시키면, 블로워모터의 구동전류는 "ML"단자에 입력되고 이는 두개의 PTC저항소자(8,9)를 통해 전류제한되어 상기 블로워모터도 출력(out)되며, 속도제어스위치(1)를 중,고작동위치(Ⅲ)에 고정시키면, 전류는 "MH"단자에 입력되고 이는 하나의 PTC저항소자(9)를 통해 전류제한되어 상기 블로워모터로 출력되고, 고작동위치(IIII)에 고정시키면 전류는 "HI"단자에 입력되어 전류 제한없이 블로워모터가 풀스피드로 작동된다.As shown in FIG. 6, when the normal speed control device 1 is operated and fixed to the minimum operating position I, the blower motor's driving current is input to the "L0" terminal, which causes three PTC resistance elements (7). 9) the current is limited to the blower motor and outputted to the blower motor. When the speed control switch 1 is operated to fix it at the middle of the masticating position (ML), the drive current of the blower motor is connected to the "ML" terminal. And the current is limited through two PTC resistors 8 and 9 so that the blower motor is also out. When the speed control switch 1 is fixed to the medium and high operating positions III, the current is " MH "terminal, which is limited by the current through one PTC resistance element 9 and output to the blower motor. When the motor is fixed at the high operating position IIII, the current is input to the" HI "terminal and the blower motor without current limitation. Is operated at full speed.
이와같이 동작하는 본 고안은 PTC저항소자를 사용함으로써 온도상승에 의한 발열로 인해 시스템이 오동작하거나, 시스템내부의 부품의 파손되는 것을 방지할수 있고, PTC저항소자의 발열로 인한 전원차단을 방지하기 위하여 PTC소자주변에 높은 끊는점과 비전해질로된 용액을 투입하여 상기 PTC저항소자의 냉각효과를 극대화시킴으로써 PTC소자의 방열계수를 높이도록 하여 이에 의해 PTC저항소자의 소자전이 온도이상 온도가 상승되는 것을 방지할수 있을뿐만 아니라, 시스템 전체에 안정된 전원을 공급할수 있도록 하여 시스템이 오동작되지 않도록 유용한 효과를 제공하는 것이다.The present invention which operates in this way can prevent the system from malfunctioning or damage to the parts inside the system due to the heat generated by the temperature rise by using the PTC resistance element, and to prevent the power cut off due to the heat generation of the PTC resistance element. A solution containing high break point and non-electrolyte is injected around the device to maximize the cooling effect of the PTC resistor, thereby increasing the heat radiation coefficient of the PTC device, thereby preventing the temperature of the PTC resistor from rising above the device transition temperature. In addition, by providing a stable power supply to the entire system to provide a useful effect to prevent the system from malfunctioning.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92007957U KR940005122Y1 (en) | 1992-05-11 | 1992-05-11 | Pct resistor for blower motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92007957U KR940005122Y1 (en) | 1992-05-11 | 1992-05-11 | Pct resistor for blower motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930026578U KR930026578U (en) | 1993-12-28 |
| KR940005122Y1 true KR940005122Y1 (en) | 1994-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92007957U KR940005122Y1 (en) | 1992-05-11 | 1992-05-11 | Pct resistor for blower motor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940005122Y1 (en) |
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1992
- 1992-05-11 KR KR92007957U patent/KR940005122Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR930026578U (en) | 1993-12-28 |
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