KR930022069A - Pressure sensor - Google Patents

Pressure sensor Download PDF

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Publication number
KR930022069A
KR930022069A KR1019920006099A KR920006099A KR930022069A KR 930022069 A KR930022069 A KR 930022069A KR 1019920006099 A KR1019920006099 A KR 1019920006099A KR 920006099 A KR920006099 A KR 920006099A KR 930022069 A KR930022069 A KR 930022069A
Authority
KR
South Korea
Prior art keywords
electrode plate
housing
deformation
pcb
pressure sensor
Prior art date
Application number
KR1019920006099A
Other languages
Korean (ko)
Other versions
KR950008830B1 (en
Inventor
은탁
김호학
Original Assignee
조명래
광덕금속공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 조명래, 광덕금속공업 주식회사 filed Critical 조명래
Priority to KR1019920006099A priority Critical patent/KR950008830B1/en
Priority to JP5086478A priority patent/JP2600049B2/en
Publication of KR930022069A publication Critical patent/KR930022069A/en
Application granted granted Critical
Publication of KR950008830B1 publication Critical patent/KR950008830B1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

본 발명은 R-C 발진회로로 세탁조내의 수위변화에 따른 압력변화를 측정할수 있도록 PCB의 고정전극판과 변형전극판 간인이 콘덴서의 용량변화에 의해 발진주파수의 변화로 출력시켜 정확히 세탁물의 수위상태를 측정할 수 있는, 세탁조의 외부튜브에 설치되는 하우징(2)내에 순차적으로 고정전극판이고 제어회로의 부품과 원형동판의 고정전극이 앞뒤로 형성되는 PCB(8), 탄성체이고 스프링과 가변전극으로서의 기능을 갖는 변형전극판(7), 상기 PCB(8)의 상단을 상기 하우징(2)에 견고히 지지하고 상기 변형전극판(7)의 하단을 지지해 주는 스톱퍼(3)및, 세탁조의 수위에 의한 압력이 가해진 힘으로 변환되어 상기 변형전극판(7)에 변형을 유발시키는 다이어프램(5)과 푸셔(4)등이 설치되고, 이 하우징(2)내에 설치된 PCB(8)의 외부단자가 홈(9)을 통해 인출되는 한편 멤브레인(11)을 매개로 구멍(10)이 형성된 윗덮개(1)가 하우징(2)에 결합되면서 세탁조의 튜브가 끼워질 아랫덮개(6)가 결합된 압력센서장치.The present invention accurately measures the water level by washing the output between the fixed electrode plate and the deformation electrode plate of the PCB as a change in the oscillation frequency by the change of the capacitor capacity so that the pressure change according to the water level change in the washing tank by the RC oscillation circuit. In the housing (2) which is installed in the outer tube of the washing tank, which can be fixed to the PCB (8) in which the fixed electrode of the control circuit and the fixed electrode of the circular copper plate is formed back and forth, the elastic body and functions as a spring and a variable electrode Stopper 3 having firmly supporting the deformation electrode plate 7, the upper end of the PCB 8 to the housing 2 and the lower end of the deformation electrode plate 7, and the pressure of the washing tank. The diaphragm 5, the pusher 4, and the like, which are converted into the applied force and cause deformation in the deformation electrode plate 7, are installed, and the external terminal of the PCB 8 installed in the housing 2 is provided with a groove 9. As long as it is withdrawn Pressure sensor device coupled to the lower cover (6) to be fitted with the tube of the washing tub while the upper cover (1) having a hole (10) formed through the piece membrane (11) is coupled to the housing (2).

Description

압력 센서장치Pressure sensor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예에 관한 압력센서장치를 도시해 놓은 분리사시도.1 is an exploded perspective view showing a pressure sensor device according to an embodiment of the present invention.

제2도는 제1도에 도시된 압력센서장치가 결합된 단면도.2 is a cross-sectional view of the pressure sensor device shown in FIG.

제3도는 제2도에 도시된 변형전극판을 도시해 놓은 평면도.3 is a plan view showing the modified electrode plate shown in FIG.

Claims (6)

세탁조의 외부튜브에 설치되는 하우징(2)내에 순차적으로 고정전극판이 제어회로의 부품과 원형동판의 고정전극이 앞뒤로 형성되는 PCB(8), 탄성체이고 스프링과 가변전극으로서의 기능을 갖는 변형전극판(7), 상기 PCB(8)의 상단을 상기 하우징(2)에서 견고히 지지하고 상기 변형전극판(7)의 하단을 지지해 주는 스톱퍼(3)및, 세탁조의 수위에 의한 압력이 가해진 힘으로 변환되어 상기 변형전극판(7)에 변형을 유발시키는 다이어프램(5)과 푸셔(4) 등이 설치되고, 이 하우징(2)내에 설치된 PCB(8)의 외부단자가 홈(9)을 통해 인출되는 한편 멤브레인(11)을 매개로 구멍(10)이 형성된 윗덮개(1)가 하우징(2)에 결합되면서 세탁조의 튜브가 끼워질 아랫덮개(6)가 결합된 것을 특징으로 하는 압력센서 장치.In the housing (2) to be installed on the outer tube of the washing tank, the fixed electrode plate is a PCB (8) in which the fixed electrode of the control circuit and the fixed copper plate are formed back and forth, a deformation electrode plate having an elastic body and functions as a spring and a variable electrode ( 7) a stopper (3) which firmly supports the upper end of the PCB (8) in the housing (2) and supports the lower end of the deformation electrode plate (7), and converts the force to the pressure applied by the water level of the washing tank And a diaphragm 5, a pusher 4, etc. are installed in the deformation electrode plate 7, and the external terminal of the PCB 8 installed in the housing 2 is drawn out through the groove 9. On the other hand, the pressure sensor device, characterized in that the upper cover (1) having a hole (10) formed through the membrane (11) is coupled to the housing (2) and the lower cover (6) to which the tubes of the washing tub are fitted. 제1항에 있어서, 고정전극판의 PCB(8)와 변형전극판(7) 사이가 상기 다이어프램(5)에 의해 캐패시턴스가 변화한 것을 특징으로 하는 압력 센서장치.The pressure sensor device according to claim 1, wherein a capacitance is changed between the PCB (8) of the fixed electrode plate and the deformation electrode plate (7) by the diaphragm (5). 제1항에 있어서, 상기 스톱퍼(3)가 하우징(2)에서 견고히 지지하는 돌출편(12)과 변형전극판(7)의 하단을 지지해 주는 돌출편(12)이 지그자그로 해서 다수개가 원주를 따라 상하로 돌출된 것을 특징으로 하는 압력 센서장치.According to claim 1, wherein the stopper (3) is a projection piece 12 which firmly supports in the housing (2) and a plurality of projection pieces 12 for supporting the lower end of the deformation electrode plate (7) are zigzag Pressure sensor device characterized in that protruded up and down along the circumference. 제1항에 있어서, 상기 변형전극판(7)이 탄성체로서 변형이 유발되는 암(14)과 이암(14)사이에 설치되는 날개(15)로 이루어진 것을 특징으로 하는 압력 센서장치.The pressure sensor device according to claim 1, wherein the deformation electrode plate (7) is composed of a wing (15) installed between the arm (14) and the arm (14) where deformation is induced as an elastic body. 제1항에 있어서, 상기 하우징(2)상단에 멤브레인(11)이 윗덮개(1)로 내부에 설치된 것을 특징으로 하는 압력센서장치.The pressure sensor device according to claim 1, wherein a membrane (11) is installed inside the upper cover (1) at the upper end of the housing (2). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920006099A 1992-04-13 1992-04-13 Pressure sensor KR950008830B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019920006099A KR950008830B1 (en) 1992-04-13 1992-04-13 Pressure sensor
JP5086478A JP2600049B2 (en) 1992-04-13 1993-04-13 Washing machine water level control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920006099A KR950008830B1 (en) 1992-04-13 1992-04-13 Pressure sensor

Publications (2)

Publication Number Publication Date
KR930022069A true KR930022069A (en) 1993-11-23
KR950008830B1 KR950008830B1 (en) 1995-08-08

Family

ID=19331679

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920006099A KR950008830B1 (en) 1992-04-13 1992-04-13 Pressure sensor

Country Status (1)

Country Link
KR (1) KR950008830B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101309634B1 (en) * 2012-04-02 2013-09-17 주식회사 뉴인스 A industrial guage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101309634B1 (en) * 2012-04-02 2013-09-17 주식회사 뉴인스 A industrial guage

Also Published As

Publication number Publication date
KR950008830B1 (en) 1995-08-08

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