KR900003068Y1 - Level detecting system - Google Patents

Level detecting system Download PDF

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Publication number
KR900003068Y1
KR900003068Y1 KR2019870003826U KR870003826U KR900003068Y1 KR 900003068 Y1 KR900003068 Y1 KR 900003068Y1 KR 2019870003826 U KR2019870003826 U KR 2019870003826U KR 870003826 U KR870003826 U KR 870003826U KR 900003068 Y1 KR900003068 Y1 KR 900003068Y1
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KR
South Korea
Prior art keywords
water level
water
level detection
sensor
relay
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KR2019870003826U
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Korean (ko)
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KR880018367U (en
Inventor
서순기
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삼성전자 주식회사
한형수
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Priority to KR2019870003826U priority Critical patent/KR900003068Y1/en
Publication of KR880018367U publication Critical patent/KR880018367U/en
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Publication of KR900003068Y1 publication Critical patent/KR900003068Y1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/18—Indicating, recording or alarm devices actuated electrically

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

내용 없음.No content.

Description

수위 검출 센서Water level detection sensor

제1도는 종래의 식기세척기의 수위 검출 장치도.1 is a water level detection device of a conventional dishwasher.

제2도는 종래의 세탁기의 수압에 따른 수위 검출 장치도.2 is a water level detection device according to the water pressure of a conventional washing machine.

제3도는 본 고안의 수위 검출장치의 수위검출 센서의 종 단면도.3 is a longitudinal cross-sectional view of the water level detection sensor of the water level detecting device of the present invention.

제4도는 종래 수위검출 장치의 회로도이다.4 is a circuit diagram of a conventional water level detection device.

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

30 : 동선 31 : 비닐커버30: copper wire 31: vinyl cover

32 : 페라이트커버 40 : 수위검출부32: ferrite cover 40: water level detector

41 : 릴레이구동부 42 : 릴레이41: relay driver 42: relay

본 고안은 가정에서 사용되는 식기세척기 및 세탁에 있어서 수위를 감지하는 장치의 수위검출센서에 관한 것이다.The present invention relates to a water level sensor of the device for detecting the water level in the dishwasher and laundry used in the home.

종전의 식기세척기와 세탁기 등의 수위검출을 하는 방법으로는 플루트(Float)스위치를 이용하는 방법과 수위에 따른 압력으로 수위를 검출하는 방법이 있다.Conventional methods for detecting the level of a dishwasher and a washing machine include a method using a float switch and a method of detecting the level by pressure according to the level.

즉, 전자의 방법으로는 제1도에 도시된 바와 같이, 물위에 표류되게 하는 플루트(10)에 의해 샤프트(shaft)(11)에 의해 고정회전되게 하는 레벨(12)이 물의 높낮이에 따라 마이크로스위치(13)가 온/오프되게 하므로써 수위를 검출하는 방법이다.That is, in the former method, as shown in FIG. 1, the level 12, which is fixedly rotated by the shaft 11 by the flute 10, which is allowed to drift on the water, is determined by the height of the water. It is a method of detecting the water level by causing the switch 13 to be turned on / off.

후자는, 세탁기에 있어 수압에 따른 수위 검출방법으로서 제2도와 같이 수위의 높낮이에 따라 호스(20)안에 부유에 따른 수압에 의해 벨로즈(Bellows)(22)가 동작되어 마이크로스 스위치(23)를 온/오프 시킴으로써 수위를 검출하는 방법이다.The latter is a method of detecting the water level according to the water pressure in the washing machine, and according to the height of the water level as shown in FIG. The water level is detected by turning on / off.

이와 같은 종래의 수위검출장치는 모두 기계식으로 모터의 회전에 따른 요동으로 스위치가 오동작하는 문제가 있었고, 플루트를 이용한 수위검출장치에서는 플루트를 만들기 위한 작업공정이 늘어나고 설치 또한 복잡하여 설치에 다른 공간이 필요로 하기 때문에 소형화하기가 불가능하고 자동화가 어려운 결점이 있었다.The conventional water level detection device has a problem that the switch malfunctions due to the rotation of the motor in the mechanical manner, and in the water level detection device using the flute, the work process for making the flute is increased and the installation is complicated, so that there is another space for installation. Because of the necessity, it was impossible to miniaturize and difficult to automate.

이러한 결점을 해결하기 위해 종래에는 수위검출센서에서 물의 도전성에 의한 원리로 수위를 검출하고, 이에 따라 릴레이를 구동하여 부하, 즉 솔레노이드 밸브 등을 제어하도록 하는 수위검출장치가 사용된다. 그러나 이때 수위검출센서로서는 구리 등과 같은 동선이 사용될 수 있는데 도전효과와 장기간 사용을 위해 물 또는 공기와의 접촉으로 인한 산화방지가 될 필요가 있다.In order to solve this drawback, a water level detection device is conventionally used to detect a water level based on the principle of water conductivity in a water level detection sensor, and accordingly drive a relay to control a load, that is, a solenoid valve. However, at this time, copper wires such as copper may be used as the water level detection sensor, and it is necessary to prevent oxidation due to contact with water or air for long-term use.

본 고안의 목적은 상기한 수위검출장치에서의 사용을 위한 수위검출센서를 제공하는 것이다.An object of the present invention is to provide a water level detection sensor for use in the above-described water level detection device.

이하 첨부된 도면에 의거하여 본 고안의 실시예를 상술한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제3도는 본 고안에 다른 수위검출센서의 종단면도로서, 동선(30)의 상단부에는 전극의 산화현상을 방지하기 위해 비닐커버(31)를 착설하고, 동선(30)하단부에는 산화방지용인 산화절(Fe2 o3)이 주성분인 도전성 페라이트(Ferrite)캡(32)을 착설하여 동선(30)이 공기 또는 물에 접촉되지 않도록 차단시킨다.Figure 3 is a longitudinal cross-sectional view of the water level detection sensor according to the present invention, the plastic cover 31 is installed on the upper end of the copper wire 30 to prevent the oxidation of the electrode, the oxidation section for preventing oxidation in the lower end of the copper wire 30 A conductive ferrite cap 32 having Fe 2 o 3 as its main component is installed to block the copper wire 30 from contacting air or water.

이와 같은 구성의 수위검출센서는 두 개가 이격착설되어 물에 접촉되면 물의 도전성에 의해 두 센서가 스위칭된다.When two water level detection sensors of such a configuration are spaced apart and contacted with water, the two sensors are switched by the conductivity of the water.

제4도는 본 고안센서를 사용한 회로도로서, 수위검출부(40)에서 센서의 스위칭에 따라 수위검출신호에 의해 동작되는 릴레이구동부(41)는 저항(R1-R3)과 트랜지스터(Q1,Q2)로 구성되는데, 수위검출부(40)에서 센서A,B가 물에 의해 스위칭되면 스위칭용 트랜지스터(Q1)가 도통되면서 릴레이구동용 트랜지스터(Q2)가 연속 도통된다.4 is a circuit diagram using the sensor of the present invention, wherein the relay driver 41 operated by the water level detection signal according to the switching of the sensor in the water level detection unit 40 includes resistors R1-R3 and transistors Q1 and Q2. When the sensors A and B are switched by the water in the water level detection unit 40, the switching transistor Q1 is conducted while the relay driving transistor Q2 is continuously connected.

이때 릴레이(42)가 동작됨에 따라 릴레이스위치가 온 되어서 부하(솔레노이드밸브)(43)에 하이레벨의 수위검출신호가 인가된다.At this time, as the relay 42 operates, the relay switch is turned on, and a high level water level detection signal is applied to the load (solenoid valve) 43.

이에 따라 솔레노이드 밸브가 동작하여서 급수를 차단시키고, 수위검출부(40)의 동선 A,B이 물에 떨어져서 도전되지 않으면 릴레이구동부(41)는 동작되지 않아 릴레이(42)의 접점도 복귀되면서 재급수가 이루어진다.Accordingly, when the solenoid valve is operated to shut off the water supply, and the copper wires A and B of the water level detection unit 40 do not fall to the water and are not electrically conductive, the relay driving unit 41 is not operated so that the contact point of the relay 42 is also returned and the water is supplied again. Is done.

이상과 같이 본 고안의 센서 사용으로 산화방지가 실현되므로 도전효과가 지속되고 장기간 사용이 가능하다.As mentioned above, since the oxidation prevention is realized by using the sensor of the present invention, the conductive effect is maintained and the long-term use is possible.

Claims (1)

물의 도전성을 이용하여 물이 센서(A,B)에 접촉됨을 감지하는 수위검출부(40)와, 이 검출부로 부터의 신호에 따라 릴레이를 제어하는 릴레이구동부(41)와, 이 릴레이구동부(41)에 연결된 부하(13)를 갖는 수위검출장치에 있어서, 상기한 수위검출부(40)의 센서는 동선(30)의 상단부에 비닐커버(31)를 착설하고, 그 동선(30)의 하단부에는 산화철이 주성분인 페라이트(32)캡을 착설하여 구성된 것을 특징으로 하는 수위 검출센서.A water level detector 40 for detecting that water is in contact with the sensors A and B using the conductivity of the water, a relay driver 41 for controlling the relay in accordance with a signal from the detector, and the relay driver 41 In the water level detecting device having a load 13 connected to the sensor, the sensor of the water level detecting unit 40 installs a vinyl cover 31 at the upper end of the copper wire 30, and iron oxide is disposed at the lower end of the copper wire 30. Water level detection sensor, characterized in that the main component ferrite (32) is installed by the cap.
KR2019870003826U 1987-03-25 1987-03-25 Level detecting system KR900003068Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870003826U KR900003068Y1 (en) 1987-03-25 1987-03-25 Level detecting system

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Application Number Priority Date Filing Date Title
KR2019870003826U KR900003068Y1 (en) 1987-03-25 1987-03-25 Level detecting system

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KR880018367U KR880018367U (en) 1988-10-28
KR900003068Y1 true KR900003068Y1 (en) 1990-04-12

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KR2019870003826U KR900003068Y1 (en) 1987-03-25 1987-03-25 Level detecting system

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