KR920007513Y1 - Control resistor for moter speed - Google Patents

Control resistor for moter speed Download PDF

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Publication number
KR920007513Y1
KR920007513Y1 KR2019900020770U KR900020770U KR920007513Y1 KR 920007513 Y1 KR920007513 Y1 KR 920007513Y1 KR 2019900020770 U KR2019900020770 U KR 2019900020770U KR 900020770 U KR900020770 U KR 900020770U KR 920007513 Y1 KR920007513 Y1 KR 920007513Y1
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South Korea
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circuit
motor
resistor
circuit board
heat sink
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KR2019900020770U
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Korean (ko)
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KR920013515U (en
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이우용
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동아전기부품 주식회사
이우용
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/08Cooling, heating or ventilating arrangements
    • H01C1/084Cooling, heating or ventilating arrangements using self-cooling, e.g. fins, heat sinks
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/14Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C17/00Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/065Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/003Thick film resistors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/0241Structural association of a fuse and another component or apparatus

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

내용 없음.No content.

Description

모우터의 회전속도 조정용 저항기Resistor for adjusting motor speed

제1도는 본 고안의 사용일예를 나타낸 개략도.1 is a schematic view showing an example of use of the present invention.

제2도는 본 고안의 일예를 나타낸 도면으로 (a)는 본 고안의 전면측을 보인 사시도, (b)는 동도(同도)의 I-I선 방향에 따른 수직단면도.2 is a view showing an example of the subject innovation (a) is a perspective view showing the front side of the subject innovation, (b) is the same figure Vertical cross-sectional view along the II line direction of FIG.

제3도는 본 고안의 적용된 저항회로도.3 is an applied resistance circuit diagram of the present invention.

제4도는 본 고안의 다른 예를 나타낸 도면으로 (a)는 본 고안의 후면측을 보인 사시도, (b)는 동도(同)의 II-II선 방향에 따른 수직단면도이다.Figure 4 is a view showing another example of the subject innovation (a) is a perspective view showing the back side of the subject innovation, (b) is the same figure Vertical cross-sectional view along the II-II line of).

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

1 : 저항기 2 : 기판(基板)1 resistor 2 substrate

4 : 방열판체 8 : 방열휜(FIN)4: heat sink 8: heat dissipation fin (FIN)

10 : 회로기판 12 : 모울딩부10: circuit board 12: molding unit

14 : 회로단락 유도부 C : 저항회로부14: circuit short induction part C: resistance circuit part

본 고안은 모우터의 회전속도(R. P. M)조정용 저항기, 더욱 상세하게는 저항기의 일부위에 일정온도에서 단락되는 단락유도부를 형성하여, 모우터 결합으로 인한 과열시 단락유도부로 하여금 신속히 단락되게하여 과열로 인해 모우터 및 주변기기들이 소손(燒損)되는 일이 없도록 하는 모우터의 회전속도 조정용 저항기에 관한 것이다.The present invention provides a resistor for adjusting the motor's rotational speed (RP M), more specifically, a short-circuit induction part which is shorted at a predetermined temperature on a part of the resistor, which causes the short-circuit induction part to be quickly short-circuited when overheated due to the motor coupling. The present invention relates to a resistor for adjusting the rotational speed of a motor so that the motor and peripherals are not burned out.

기존 모우터의 회전속도 조정용 저항기는, 모우터가 작동중 기계적 결합으로 구속시 그 모우터측으로 인가되는 전원을 신속히 차단해주는 단락수단이 갖추어져 있지를 않아서, 계속 저항기의 저항회로를 통해 모우터측으로 인가되는 전원으로 인하여 모우터에 과부하가 걸리게 되어 과열원인이며, 이때문에 모우터가 소손(燒損)되거나 또는 기타 주변기기들까지에도 악영향을 미치게 한다고 하는 문제가 있다.Conventional motor speed regulating resistor is not equipped with short circuit means to quickly shut off the power applied to the motor when the motor is constrained by mechanical coupling during operation, so it is continuously applied to the motor through the resistor circuit of the resistor. Due to the power supply, the motor is overloaded, which causes overheating, which causes the motor to be burned out or other peripherals.

본 고안은 상기 결점들을 해소키 위하여 개량 고안한 것으로, 모우터의 기계적 결함시 전원이 인가되는 저항회로 일부위를 신속히 단락되게하여, 모우터에 격심한 과부하가 걸리는 일이 없도록 함과 아울러 주변기기에도 전연 악영향을 주지 않도록 한 잇점을 제공함에 목적이 있다.The present invention is designed to solve the above-mentioned shortcomings, and in case of mechanical failure of the motor, a short circuit on a part of the resistance circuit to which power is applied can be prevented, so that the motor is not severely overloaded and the peripheral device is also applied. Its purpose is to provide the advantage of not adversely affecting all of the time.

즉, 본 고안은 상기 목적을 달성키위하여 통상구조를 갖는 모우터의 회전속도 조정용 저항기에 있어서, 단자가 입설된 기판(基板) 상중앙에는 이면에 방열휜이 형성된 방열판체를 착설하여, 그 방열판체의 전면에는 회로기판을 부착하고, 그 회로기판에 실크인쇄된 저항회로부를 알루미나로 피복하는 모울딩부를 형성하되, 그 저항회로 일부위를 비 모울딩된 개방부로 하여 일정온도에서 단락되는 회로단락 유도부로 형성하며, 모우터 결함으로 인한 과열시 회로단락 유도부가 신속히 단락되게 하여 모우터의 소손이 없도록 한것이다.That is, in order to achieve the above object, the present invention provides a resistor for adjusting a rotational speed of a motor having a conventional structure, and a heat sink having a heat sink is formed on the rear surface of the substrate on which the terminal is placed. A circuit board is attached to the front surface of the sieve, and a molding part is formed on the circuit board to cover the silk printed resistive circuit part with alumina, and a circuit shorted at a predetermined temperature by using a non-molded opening part of the resistive circuit part. It is formed by the induction part, and the short circuit of the circuit short when the overheat is caused by the motor defect so that there is no damage of the motor.

또한, 상기 회로단락 유도부를 방열판체에도 설치가능케 한것이다.In addition, the circuit short guide portion can be installed on the heat sink body.

이하, 첨부된 도면에 의거 본 고안의 실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

다음 실시예에 의거 본 고안이 결코 한정되는 것은 아니다.The present invention is by no means limited to the following examples.

제2도(a), (b)는 본 고안의 일실시예를 나타낸 것이다. 도면부호(1)은 본 고안의 저항기를 지시한 것으로, 저부변에 후술하는 연결단자(T1)∼(T4)의 하우징(6)을 갖추고 있는 기판(基板)(2) 상면중앙에는 이면에 다수개의 방열휜(8)이 요설된 방열판체(4)를 입설하여, 그 방열판체(4)의 전면에는 회로기판(10)을 부착하였다.Figure 2 (a), (b) shows an embodiment of the present invention. Reference numeral 1 denotes a resistor of the present invention, and on the bottom surface of the substrate 2, which has a housing 6 of connection terminals T1 to T4 described later, The heat sink plate 4 in which the two heat sinks 8 were arranged was placed, and the circuit board 10 was attached to the front surface of the heat sink plate 4.

상기 회로기판(10) 외측으로 실크인쇄된 모우터(M) 회전속도 조정용 저항회로부(C)상에는 알루미나로 전체를 덮도록 모울딩하여 모울딩부(12)를 형성하되, 그 저항회로(C)의 일부위를 비(非) 모울딩된 개방부로 하여 일정온도(대략 80℃이상)에서 용융되어져 단락되게한 회로단락유도부(14)로 형성한 것이다. 한편 상기 저항기(1)의 회로기판(10)에 인쇄된 저항회로부(C)는 제3도에 표시한 바와 같이, 모우터(M)의 회전속도를 4단으로 조정할 수 있도록 구성되어 있으며, 그 저항회로부(C)에는 모우터(M)와 속도조절 선택스위치(SW)측으로 연결접속되는 상기한 연결단자(T1)∼(T4)의 상단부위가 접속된다.On the resistance circuit part C for adjusting the rotation speed of the motor M, which is silk printed to the outside of the circuit board 10, the molding part 12 is formed by forming a molding part 12 so as to cover the whole with alumina, and the resistance circuit C It is formed as a circuit short guide part 14 which is melted at a predetermined temperature (approximately 80 ° C. or more) and short-circuited by using a non-molded opening partly. On the other hand, the resistance circuit portion C printed on the circuit board 10 of the resistor 1 is configured to adjust the rotational speed of the motor M in four stages, as shown in FIG. An upper end portion of the above-described connection terminals T1 to T4 connected to the resistance circuit portion C is connected to the motor M and the speed control selector SW side.

참고로, 상기 저항회로부(C)에 적용된 저항치는 대략 2.4±10%범위내에서 정해지고, 1단에서 4단으로 갈수록 저항치는 작은 값으로 설정된다. 이러한 저항치는 고정된 값은 아니고, 항시 변형가능하다.For reference, the resistance value applied to the resistance circuit portion C is approximately 2.4. It is set within the range of ± 10%, and the resistance value is set to a smaller value from 1 to 4 steps. This resistance is not a fixed value and can always be modified.

이와 같은 구성으로, 본원고안은 제1도에 표시한 바와 같이 모우터(M) 및 회전속도조정 선택스위치(SW)에 각각 접속되어져 사용되는 것으로, 본 고안 저항기(1)는 선택스위치(SW)으로 하여금 1단 저속에서 4단 고속까지 모우터(M)의 회전속도를 가변할 수가 있다. 모우터(M)의 회전속도조정은 선택스위치(SW) 변환에 따라 저항회로부(C)에 채용된 각 저항치에 의해 결정된다. 즉, 저항치가 클수록 모우터(M)측으로 인가되는 전압 및 전류가 적게되어 회전속도는 저속으로 된다. 따라서, 선택스위치(SW)로 하여금 원하는 단(段)을 선택함에 의해, 저항회로부(C)의 이미 설정된 저항치로 하여금 모우터(M)측에 인가되는 전압을 억제시킴으로 인해서 모우터(M)의 회전속도를 조정하면서 구동되게 할시, 예기치않은 일로 모우터(M)에 기계적 결함이 발생되어 모우터(M)의 회전이 구속을 받게 될 경우, 계속 모우터(M)측으로 인가되는 전압으로 모우터(M)에는 부하가 걸리게되어 과열이 발생됨과 아울러 이때 제1도에 표시한 바와같이, 모우터(M)에 접속된 저항기(1)에 까지도 과열영향이 미치게되는 바, 방열판체(4)의 방열휜(8)에 의해서 일부 방열은 되지만, 계속되는 열을 완전 방열치 못하게되어, 종래에는 모우터(M)는 물론이고 저항기(1)까지도 과열로 인해 소손된다고하는 문제가 있었다. 그러나, 본원고안은 회로기판(10)에 형성한 회로단락 유도부(14)로 하여금 과열이 심하기 전에 사전 단락되어지게하여 모우터(M)측으로의 전원공급을 중단시키기 때문에, 모우터(M)나 저항기(1)의 회로기판(10) 자체가 손상되는 일이 없게 된다. 회로단락 유도부(14)가 일정온도(대략 80℃이상)에서 쉽게 단락되는 이유는, 회로기판(10)에 실크인쇄된 저항회로부(C)가 내식성이 크고 연화점이 높으며 단열성이 우수한 알루미나(자기류)로 완전 밀폐되어 외부공기와는 접촉이 안되게끔 완전 차단되어 있는 반면, 회로단락 유도부(14)의 저항회로부(C)일부위는 회로인쇄부위가 협소하여 형성되어 외부공기와 항시 접촉되는 개방상태로 이루어져 있기 때문애, 모우터(M) 결합으로 인한 과열영향을 받으면 대기중으로 노출된 회로단락 유도부(14)는 연소에 필요하게 작용되는 공기의 영향으로 외부와 차단된 다른 부위에 비하여 쉽게 집중적으로 용융되어 단락되어지게 되는 것이다. 상기 회로단락 유도부(14)는 제2도(a)의 위치가 아닌 어느 위치라도 무방하며, 가능한 외기와 쉽게 접할 수 있는 위치이며 보다 바람직하다. 제4도 (a),(b)는 본 고안의 다른 실시예를 나타낸 것으로, 상기 실시예와 동일 부분에 대해서는 동일부호로 표시하였다.With this configuration, the present application is used by being connected to the motor M and the rotational speed adjustment selection switch SW, respectively, as shown in FIG. 1, and the resistor 1 of the present invention has a selection switch SW. It is possible to change the rotational speed of the motor M from the first stage low speed to the fourth stage high speed. The rotational speed adjustment of the motor M is determined by each resistance value employed in the resistance circuit portion C in accordance with the selection switch SW conversion. That is, the larger the resistance value, the lower the voltage and current applied to the motor M side, and the rotation speed becomes low. Therefore, by selecting the desired stage by the selector switch SW, the previously set resistance value of the resistance circuit portion C suppresses the voltage applied to the motor M side of the motor M. When driving while adjusting the rotational speed, if a mechanical defect occurs in the motor M due to unexpected work, and the rotation of the motor M is constrained, the motor is continuously applied to the motor M side. The load is applied to (M) and overheating occurs. At this time, as shown in FIG. 1, the overheating influence also occurs on the resistor 1 connected to the motor M. Part of the heat dissipation is performed by the heat dissipation fan 8, but it is impossible to completely dissipate the subsequent heat, and conventionally, there is a problem that the resistor M as well as the motor M is burned out due to overheating. However, the present application causes the circuit short guide portion 14 formed on the circuit board 10 to be shorted before severe overheating so that the power supply to the motor M is stopped. The circuit board 10 itself of the resistor 1 is not damaged. The short circuit induction part 14 is easily shorted at a constant temperature (about 80 ° C. or more) because the resistance circuit part C silk-printed on the circuit board 10 has high corrosion resistance, high softening point, and excellent thermal insulation. Is completely closed to prevent contact with external air, while a portion of the resistance circuit part C of the circuit short induction part 14 is formed in a narrow circuit printing part to be in open contact with external air at all times. Because of this, the circuit short induction part 14 exposed to the atmosphere when melted by the overheating effect of the motor (M) is easily concentrated intensively compared to other parts blocked from the outside due to the effect of air that is required for combustion. Will be short-circuited. The circuit short guide portion 14 may be any position other than the position of FIG. 2 (a), and may be easily contacted with outside air as much as possible. 4 (a) and 4 (b) show another embodiment of the present invention, and the same parts as those of the above embodiment are denoted by the same reference numerals.

제4도는 상기 일실시예의 회로기판(10) 자체에 알루미나를 모울딩 함에 의해 회로단락 유도부(14)를 형성되게 한 것과는 달리, 그 회로기판(10') 전면에 실크인쇄된 저항회로부(C') 전체를 모울딩하지 않고 그대로 나둔 반면에 방열판체(4')의 일부위를 천공(Heat Sink Hole)함에 의해, 회로기판(10')의 이면부가 대기중으로 노출되게 한 회로단락 유도부(14')를 형성한 것으로, 모우터(M) 결함으로 인한 과열시 그 회로단락 유도부(14')에 있는 회로기판(10')의 전면에 협소하게 인쇄된 회로가 방열판체(4')에 의해 완전 밀폐되어 외기와 차단되게한 상태로 있는 부위보다는, 용융에 필요한 촉매작용을 하는 공기와 보다 많은 접촉으로 인해 연소효과를 높이어 보다 집중적으로 신속히 용융되게 유도하는 것이다.4 shows that the circuit short guide portion 14 is formed by molding alumina on the circuit board 10 itself according to the embodiment, whereas the resistor circuit portion C ′ is silk printed on the entire surface of the circuit board 10 '. ) The circuit short guide portion 14 'which exposes the back surface of the circuit board 10' to the atmosphere by heat-heating a portion of the heat sink 4 'without leaving the entire mold. In the case of overheating due to a motor (M) defect, a narrowly printed circuit on the front surface of the circuit board 10 'in the circuit short guide portion 14' is completely completed by the heat sink 4 '. Rather than being enclosed and blocked from outside air, more contact with the catalyzing air required for melting increases the combustion effect, leading to more concentrated and faster melting.

이와같이, 본원고안은 모우터 기계적 결함시 저항기에 형성한 회로단락 수단으로 하여금 신속히 단락되게하여 모우터는 물론, 그 주변기기들까지도 과부하로 부터 보호하였다고하는 우수한 특장(持長)이 있는 것이다.As described above, the present application has an excellent feature that a short circuit means formed in a resistor in the case of a motor mechanical failure causes a short-circuit to protect the motor and its peripherals from overload.

Claims (2)

모우터(M)의 회전속도를 조정함에 사용하는 통상구조의 저항기에 있어서, 수개의 단자(T1)∼(T4)가 착설된 기판(基板)(2) 중앙상면에는 이면측에 방열휜(M)이 형성된 방열판체(4)를 입설하여, 그 방열판체(4)의 전면에는 회로기판(10)을 부착하고, 회로기판(10)의 저항회로부(C)를 알루미나로 피복하는 모울딩부(12)를 형성하되, 그 회로 일부위가 비(非) 모울딩되는 개방부로 하여 소정온도에서 용융의는 회로단락 유도부(14)를 형성케하며, 모우터(M) 결함으로 과열시 상기 회로단락 유도부(14)가 즉시 단락되게 하여 모우터의 소손이 발생치않도륵 한 것을 특징으로 하는 모우터의 회전속도 조정용 저항기.In a resistor of a conventional structure used to adjust the rotational speed of the motor M, heat radiation is applied to the rear surface side of the center upper surface of the substrate 2 on which several terminals T1 to T4 are mounted. ) Is formed, the heat sink plate (4) is formed, and the front surface of the heat sink plate 4 is attached to the circuit board 10, the molding unit 12 for covering the resistance circuit portion (C) of the circuit board 10 with alumina ), But a part of the circuit is a non-molded opening to form a circuit short guide part 14 at a predetermined temperature, and the circuit short guide part is overheated due to a motor (M) defect. A resistor for adjusting the rotational speed of a motor, characterized in that (14) is short-circuited immediately so that the motor is not burned out. 제1항에 있어서, 비모울딩된 저항회로부(C')를 갖는 회로기판(10')이 차설된 상기 방열판체(4')의 후면 일부위를 천공하여 회로단락 유도부(14')로 형성함을 특징으로 하는 저항기.2. The circuit board of claim 1, wherein a circuit board 10 'having a non-molded resistance circuit portion C' is formed as a circuit short guide portion 14 'by drilling a portion of the rear surface of the heat sink 4' on which the heat sink body 4 'is provided. Resistor characterized in that.
KR2019900020770U 1990-12-24 1990-12-24 Control resistor for moter speed KR920007513Y1 (en)

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KR920007513Y1 true KR920007513Y1 (en) 1992-10-15

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