KR20040035392A - Control valve using shape memory alloy - Google Patents

Control valve using shape memory alloy Download PDF

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Publication number
KR20040035392A
KR20040035392A KR1020020064522A KR20020064522A KR20040035392A KR 20040035392 A KR20040035392 A KR 20040035392A KR 1020020064522 A KR1020020064522 A KR 1020020064522A KR 20020064522 A KR20020064522 A KR 20020064522A KR 20040035392 A KR20040035392 A KR 20040035392A
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KR
South Korea
Prior art keywords
shape memory
valve
memory alloy
valve seat
control valve
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KR1020020064522A
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Korean (ko)
Inventor
윤명준
Original Assignee
주식회사 마스타테크론
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Priority to KR1020020064522A priority Critical patent/KR20040035392A/en
Publication of KR20040035392A publication Critical patent/KR20040035392A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic

Abstract

PURPOSE: A control valve using a shape memory alloy is provided to reduce the manufacturing cost by simplifying the structure, prevent noise, and improve reliability. CONSTITUTION: In a control valve using a shape memory alloy, outlets(9) and a bracket(2) are installed on the top of a housing(1), and the housing is formed with an inlet on a side. A guide plate(3) and a support plate(4) are installed inside the housing. A guide bush(11) is installed to a position of the guide plate corresponding to the outlet, and a valve rod(5) with a valve seat(6) is inserted in the guide bush and is slid vertically. A shape memory spring(7) made of a shape memory alloy material is installed between the valve seat and the guide plate. A compression spring(8) is elastically installed to the lower part of the guide bush. Rubber packings(10) are installed on the valve seat. A control part and a power supply part are installed to the lower space of the support plate. The valve rod and the power supply part are connected by a power wire(12).

Description

형상기억합금을 이용한 콘트롤밸브{Control Valve Using Shape Memory Alloy}Control Valve Using Shape Memory Alloy

본 발명의 기체나 액체의 유입 및 유출을 조절하는 콘트롤 밸브에 관한 것으로, 특히 온도의 변화에 따라 인장 또는 압축되는 형상기억 스프링에 의해 밸브가 개폐되도록 하므로서 그 구조를 단순화하고, 소음을 방지하며, 신뢰성을 향상시킨 형상기억합금을 이용한 콘트롤밸브에 관한 것이다.The present invention relates to a control valve for controlling the inflow and outflow of a gas or a liquid of the present invention. In particular, the valve is opened and closed by a shape memory spring that is tensioned or compressed according to a change in temperature, thereby simplifying the structure and preventing noise. The present invention relates to a control valve using a shape memory alloy with improved reliability.

일반적으로, 밸브는 관속을 흐르는 기체 또는 액체의 유입 및 유출을 조절하는 유압 장치의 하나로서 그 기능에 따라 여러 가지 구조를 가진다.In general, the valve is one of hydraulic devices for controlling the inflow and outflow of gas or liquid flowing through the pipe, and has a variety of structures depending on its function.

이러한 밸브는 수동 조작과 자동 조작에 의해 작동되는데, 최근에는 유압 장치가 정밀하게 제작되면서, 하나의 유압 장치에 많은 밸브가 설치되므로, 수동 조작 밸브 보다는 자동 조작 밸브가 더 많이 사용되고 있다.These valves are operated by manual operation and automatic operation. In recent years, since hydraulic devices are manufactured precisely, many valves are installed in one hydraulic device, and thus, automatic operation valves are used more than manual operation valves.

자동 조작 밸브는 보통 모터나 솔레노이드를 구동원으로 하여 조작된다.Automatic control valves are usually operated with a motor or solenoid as the drive source.

종래의 콘트롤 밸브는 외부의 힘을 동력원으로 하여 밸브 유로가 개방 또는 폐쇄된다.In the conventional control valve, the valve flow path is opened or closed by using an external force as a power source.

즉, 밸브 로드를 외부에서 당기면 스프링이 수축하면서 밸브 시트가 유로를 개방하고, 당기는 힘이 해제되면 스프링의 복원력에 의해 밸브 시트가 유로를 폐쇄하는 것이다.In other words, when the valve rod is pulled from the outside, the valve seat opens the flow path while the spring contracts, and when the pulling force is released, the valve seat closes the flow path by the restoring force of the spring.

이때, 외부에서 당기는 힘을 공급하기 위해 종래에는 모터와 솔레노이드를이용하였다.At this time, in order to supply the pulling force from the outside conventionally used a motor and a solenoid.

그러나 상기와 같은 종래의 콘트롤 밸브는 그 구조가 복작하여 제작비용이 많이 소요될 뿐만 아니라, 각 부품간의 마찰음 등으로 소음이 많이 발생하고, 정확한 개폐작동이 이루어지지 않아 신뢰성이 저하되는 문제점이 있었다.However, the conventional control valve as described above has a problem in that its structure is complicated and not only takes a lot of manufacturing cost, but also generates a lot of noise due to frictional noise between the parts, and the accurate opening and closing operation is not performed to reduce reliability.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서,The present invention has been made to solve the above problems,

밸브가 전자제어부에 의한 온도변화에 따라 인장 또는 압축되는 형상기억 스프링에 의해 개폐되도록 구성하므로서,The valve is configured to be opened and closed by a shape memory spring that is tensioned or compressed in accordance with the temperature change by the electronic control unit,

그 구조를 단순화하여 제작비용을 절감시킴은 물론, 소음을 방지하고, 신뢰성을 향상시킨 형상기억합금을 이용한 콘트롤밸브를 제공함에 본 발명의 목적이 있다.It is an object of the present invention to provide a control valve using a shape memory alloy to simplify the structure, reduce manufacturing costs, prevent noise, and improve reliability.

도 1 은 본 발명의 단면도.1 is a cross-sectional view of the present invention.

도 2 는 본 발명의 작동상태를 도시한 단면도.2 is a cross-sectional view showing an operating state of the present invention.

도 3 은 본 발명의 작동설명도로서, 도3a는 일측 배출구만 개방된 상태를 도시한 것이고, 도3b는 타측의 배출구만을 개방한 상태를 도시한 것이다.3 is an explanatory view of the operation of the present invention, Figure 3a shows a state in which only one outlet is opened, Figure 3b shows a state in which only the other outlet opening.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 하우징2 : 브라켓1 Housing 2 Bracket

3 : 가이드판4 : 지지판3: guide plate 4: support plate

5 : 밸브로드6 : 밸브시트5: valve rod 6: valve seat

7 : 형상기억 스프링8 : 압축스프링7: Shape memory spring 8: Compression spring

9 : 배출구10 : 고무패킹9: outlet 10: rubber packing

11 : 가이드부시12 : 전원선11: guide bush 12: power line

13 : 유입구13: inlet

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명의 단면도이다.1 is a cross-sectional view of the present invention.

상면에 배출구(9)와 브라켓(2)을 설치하고, 일측면에 유입구(13)를 형성한 하우징(1)의 내부에 가이드판(3)과 지지판(4)을 상하이격설치하고, 가이드판(3)의배출구(9)와 일치되는 위치에 가이드부시(11)를 설치하고 이에 밸브시트(6)가 구비된 밸브로드(5)를 삽입하여 상하슬라이딩되게 하고, 밸브시트(6)와 가이드판(3) 사이에는 형상기억합금재로 된 형상기억 스프링(7)을 설치하고, 가이드부시(11)의 하부에는 압축스프링(8)을 탄설하고, 밸브시트(6)의 상면에는 고무패킹(10)을 설치하며, 지지판(4)의 하부 공간에는 제어부와 전원부를 설치하고, 밸브로드(5)와 전원부를 전원선(12)으로 연결한 것이다.A discharge plate 9 and a bracket 2 are installed on the upper surface, and the guide plate 3 and the support plate 4 are shanghai-installed inside the housing 1 having the inlet 13 formed on one side thereof. The guide bush 11 is installed at the position coinciding with the outlet 9 of (3), and the valve rod 5 having the valve seat 6 is inserted therein so as to slide up and down, and the valve seat 6 and the guide. A shape memory spring 7 made of a shape memory alloy material is installed between the plates 3, a compression spring 8 is installed in the lower part of the guide bush 11, and a rubber packing is formed on the upper surface of the valve seat 6. 10), the control unit and the power supply unit is installed in the lower space of the support plate 4, the valve rod 5 and the power supply unit is connected to the power line 12.

이하, 본 발명의 작용을 설명한다.The operation of the present invention will be described below.

본 발명의 콘트롤 밸브를 기체나 유체가 유입 또는 유출되는 유로상에 설치하면, 지지판(4)의 하부공간에 설치된 제어부에 의해 밸브의 개폐가 제어되는 것인데, 밸브의 차단시에는 도 2의 도시와 같이 제어부에서 전원부를 작동시켜 전원선(12)을 통해 밸브로드(5)를 가열시키고, 밸브로드(5)가 가열되면서 형상기억합금 소재로 된 형상기억 스프링(7)이 가열되면서 인장된다.When the control valve of the present invention is installed on a flow path through which gas or fluid flows in or out, the opening and closing of the valve is controlled by a control unit installed in the lower space of the support plate 4. As described above, the control unit operates the power supply unit to heat the valve rod 5 through the power supply line 12, and as the valve rod 5 is heated, the shape memory spring 7 made of the shape memory alloy material is stretched while being heated.

형상기억 스프링(7)이 인장되면 밸브로드(5)와 밸브시트(6)가 가이드부시(11)하측에 설치된 압축스프링(8)을 압축시키면서 상승하고, 밸브시트(6)가 배출구(9)에 밀착되어 배출구(9)를 차단시키는 것이다.When the shape memory spring 7 is tensioned, the valve rod 5 and the valve seat 6 are raised while compressing the compression spring 8 installed under the guide bush 11, and the valve seat 6 is discharged. It is in close contact with the outlet 9 to block.

이때, 밸브시트(6)의 상면에 설치된 고무패킹(10)에 의해 밸브시트(6)가 배출구(9)에 밀착시 수밀성이 향상되어 배출구(9)를 보다 확실하게 차단시킬 수 있는 것이다.At this time, when the valve seat 6 is in close contact with the outlet 9 by the rubber packing 10 provided on the upper surface of the valve seat 6, the water tightness can be blocked more reliably.

이와 같이 차단되어 있던 밸브를 다시 개방시에는 제어부가 전원부로부터 발생하는 전원을 차단시키므로서, 밸브로드(5)의 온도를 하강시키면서 동시에 형상기억 스프링(7)의 온도를 하강시켜 형상기억 스프링(7)을 다시 압축시키므로서 압측스프링(8)의 탄발력에 의해 밸브로드(5)가 하강하여 원래의 상태로 복귀됨과 동시에 배출구(9)로부터 밸브시트(6)가 분리되어 배출구(9)가 개방되는 것이다.When the valve, which has been blocked in this way, is opened again, the control unit cuts off the power generated from the power supply unit, while simultaneously lowering the temperature of the valve rod 5 while lowering the temperature of the shape memory spring 7 to form the shape memory spring 7. ), The valve rod 5 is lowered and returned to its original state by the elastic force of the pressure spring 8, and the valve seat 6 is separated from the outlet 9, and the outlet 9 is opened. Will be.

본 발명에서 가이드판(3)에 설치된 가이드부시(11)는 밸브로드(5)가 상하 승강작동을 원활하게 할 수 있도록 가이드함은 물론, 하우징(1) 내부의 유체나 기체가 외부로 유출되는 것을 방지할 수 있는 것이다.In the present invention, the guide bush 11 installed on the guide plate 3 guides the valve rod 5 to smoothly move up and down, as well as the fluid or gas inside the housing 1 to flow out. This can be prevented.

상기와 같은 본 발명의 콘트롤밸브는 그 상태에 따라 제어부의 제어에 의해 배출구(9)의 개폐상태가 달라지게 되는데 초기상태에서는 도1의 도시와 같이 양측의 배출구(9)가 모두 개방되어 있다가 동작중에는 도3a 또는 도3b의 도시와 같이 일측 배출구(9)만 개방되거나 도2의 도시와 같이 양측 배출구(9)를 모두 차단되게 작동시키므로서 콘트롤밸브의 역할을 수행할 수 있는 것이다.According to the control valve of the present invention as described above, the opening and closing state of the outlet 9 is changed by the control of the controller. In the initial state, as shown in FIG. 1, both outlets 9 of both sides are opened. During operation, only one side outlet 9 may be opened as shown in FIG. 3A or 3B, or both side outlets 9 may be blocked as shown in FIG. 2 to serve as a control valve.

한편, 본 발명의 형상기억 스프링(7)의 재료로 사용되는 형상기억합금(Shape Memory Alloy : SMA)이란 고온에서 성형한 것을 실온에서 변형을 시켜도 열을 가하면 순간적으로 원래의 성형시의 형상으로 복원되는 성질을 가진 합금을 말하며, 이러한 성질을 갖는 합금으로는 티탄-니켈 합금이나 알루미늄 합금 등이 있다.On the other hand, shape memory alloy (SMA) used as the material of the shape memory spring 7 of the present invention is instantaneously restored to its original shape when heat is applied even if it is deformed at room temperature even if it is deformed at room temperature. It refers to an alloy having a property, such as a titanium-nickel alloy or an aluminum alloy.

이와 같이 본 발명은 제어부에 의한 온도변화로 형상기억 스프링(7)을 인장 또는 압축시켜 배출구(9)를 개폐시키므로서 개폐작동을 보다 정확히하여 신뢰성을 향상시키고, 구조를 단순화하며, 소음의 발생을 방지할 수 있는 것이다.As described above, the present invention improves reliability by simplifying the opening and closing operation by squeezing or compressing the shape memory spring 7 to open or close the outlet 9 by temperature change by the controller, thereby improving reliability, simplifying the structure, and generating noise. It can be prevented.

상기와 같이 본 발명은 밸브가 전자제어부에 의한 온도변화에 따라 인장 또는 압축되는 형상기억 스프링에 의해 개폐되도록 구성하므로서,As described above, the present invention is configured such that the valve is opened and closed by a shape memory spring that is tensioned or compressed according to a temperature change by the electronic control unit.

그 구조를 단순화하여 제작비용을 절감시킴은 물론, 소음을 방지하고, 신뢰성을 향상시킨 것이다.The structure is simplified to reduce manufacturing costs, to prevent noise, and to improve reliability.

Claims (1)

상면에 배출구(9)와 브라켓(2)을 설치하고, 일측면에 유입구(13)를 형성한 하우징(1)의 내부에 가이드판(3)과 지지판(4)을 상하이격설치하고, 가이드판(3)의 배출구(9)와 일치되는 위치에 가이드부시(11)를 설치하고 이에 밸브시트(6)가 구비된 밸브로드(5)를 삽입하여 상하슬라이딩되게 하고, 밸브시트(6)와 가이드판(3) 사이에는 형상기억합금재로 된 형상기억 스프링(7)을 설치하고, 가이드부시(11)의 하부에는 압축스프링(8)을 탄설하고, 밸브시트(6)의 상면에는 고무패킹(10)을 설치하며, 지지판(4)의 하부 공간에는 제어부와 전원부를 설치하고, 밸브로드(5)와 전원부를 전원선(12)으로 연결함을 특징으로 하는 형상기억합금을 이용한 콘트롤밸브.A discharge plate 9 and a bracket 2 are installed on the upper surface, and the guide plate 3 and the support plate 4 are shanghai-installed inside the housing 1 having the inlet 13 formed on one side thereof. The guide bush 11 is installed at a position coinciding with the outlet 9 of (3), and the valve rod 5 having the valve seat 6 is inserted therein so as to slide up and down, and the valve seat 6 and the guide. A shape memory spring 7 made of a shape memory alloy material is installed between the plates 3, a compression spring 8 is installed in the lower part of the guide bush 11, and a rubber packing is formed on the upper surface of the valve seat 6. 10), the control valve and the power supply unit is installed in the lower space of the support plate (4), the control valve using a shape memory alloy, characterized in that connecting the valve rod (5) and the power supply line by the power line (12).
KR1020020064522A 2002-10-22 2002-10-22 Control valve using shape memory alloy KR20040035392A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51153833U (en) * 1975-06-02 1976-12-08
KR890009054Y1 (en) * 1986-11-15 1989-12-15 Shim Jong Sob Gas gun
KR940003763Y1 (en) * 1991-07-11 1994-06-09 주식회사 기아기공 Arrangement for controlling electric motor
US5588717A (en) * 1994-07-15 1996-12-31 Daewoo Electronic Co., Ltd. Valve utilizing shape memory alloys and an anti-lock brake system with the valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51153833U (en) * 1975-06-02 1976-12-08
KR890009054Y1 (en) * 1986-11-15 1989-12-15 Shim Jong Sob Gas gun
KR940003763Y1 (en) * 1991-07-11 1994-06-09 주식회사 기아기공 Arrangement for controlling electric motor
US5588717A (en) * 1994-07-15 1996-12-31 Daewoo Electronic Co., Ltd. Valve utilizing shape memory alloys and an anti-lock brake system with the valve

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