KR20060114971A - Vacuum pressure switch - Google Patents

Vacuum pressure switch Download PDF

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Publication number
KR20060114971A
KR20060114971A KR1020050037213A KR20050037213A KR20060114971A KR 20060114971 A KR20060114971 A KR 20060114971A KR 1020050037213 A KR1020050037213 A KR 1020050037213A KR 20050037213 A KR20050037213 A KR 20050037213A KR 20060114971 A KR20060114971 A KR 20060114971A
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KR
South Korea
Prior art keywords
cover
pressure switch
vacuum pressure
housing
ground plate
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KR1020050037213A
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Korean (ko)
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KR101076737B1 (en
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이선일
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주식회사 월드전자기술
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Priority to KR1020050037213A priority Critical patent/KR101076737B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/502—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position the action of the contact pressure spring becoming active only after engagement of the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/058—Actuators to avoid tilting or skewing of contact area or actuator

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Push-Button Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

A vacuum pressure switch is provided to reduce an electric noise by improving contact reliability thereof and to reduce a manufacturing cost by reducing a size of the vacuum pressure switch. A cover(110) has an engaging hole(111) formed on a center portion. A rubber(120) is inserted in the cover and has a protrusion(121) inserted in the engaging hole. A ground unit(130) is inserted in the rubber and has a ground plate cover(1310) and a ground plate(1320). A compressed spring(140) contacts the ground plate at one end. A housing(160) receives the compressed spring, and is engaged with the cover. A contact pin(150) has a center pin(1510) detachably engaged to the housing and a side pin(1520) vertically engaged to the housing.

Description

진공압력스위치{Vacuum pressure switch}Vacuum pressure switch

도 1은 종래의 진공압력스위치를 나타낸 단면도,1 is a cross-sectional view showing a conventional vacuum pressure switch,

도 2는 본 발명의 실시예에 따른 진공압력스위치의 분리사시도,2 is an exploded perspective view of a vacuum pressure switch according to an embodiment of the present invention;

도 3은 도 2에 도시된 진공압력스위치의 조립단면도,3 is an assembled cross-sectional view of the vacuum pressure switch shown in FIG.

도 4는 도 2에 도시된 진공압력스위치의 작동상태를 나타내는 단면도이다.4 is a cross-sectional view showing an operating state of the vacuum pressure switch shown in FIG.

<도면의 주요주부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100... 진공압력스위치 110... 커버100 ... vacuum pressure switch 110 ... cover

111... 결합홀 120... 러버111 ... engagement hole 120 ... rubber

121... 돌출부 130... 접지유닛121 ... protrusion 130 ... grounding unit

131... 삽입돌출부 1310... 접지판커버131 ... Insertion protrusion 1310 ... Ground plate cover

1320... 접지판 140.. 압력스프링1320 ... ground plate 140 ... pressure spring

150... 접속핀 1510... 중앙핀150 ... connection pin 1510 ... center pin

1520... 사이드핀 160... 하우징1520 ... side pin 160 ... housing

본 발명은 스위치에 관한 것으로서, 보다 상세하게는 유체의 특정 압력값의 검출 결과를 전기적인 신호로 변환시키는 진공압력스위치에 관한 것이다.The present invention relates to a switch, and more particularly, to a vacuum pressure switch for converting a detection result of a specific pressure value of a fluid into an electrical signal.

일반적으로 진공압력스위치는 조정된 스프링에 의해 지지되고 있는 다이어프램(Diaphragm)이나 피스톤이 유체의 압력 크기에 따라 변화하는 변위량을 검출하고, 이를 이용하여 전기적신호를 보내는 것을 말한다.In general, a vacuum pressure switch refers to a diaphragm or piston supported by an adjusted spring that detects an amount of displacement that varies with the pressure of a fluid, and sends an electrical signal using the same.

이러한, 진공압력스위치로서 종래에는 도 1에 도시된 바와 같은 구조가 일반적으로 채용되었다. 도면을 참조하면, 진공압력스위치(10)는, 하우징(11)과, 이 하우징(11)내에서 압력변화에 따라 이동하며 통전되는 이동판(12)과, 상기 이동판(12)을 지지하여 탄성복원력을 제공하는 스프링(13) 및 상기 하우징(11)에 관통결합되고 전원과 직렬연결된 제1 및 제2고정핀(14, 15)을 포함한다.As such a vacuum pressure switch, a structure as shown in Fig. 1 is generally employed. Referring to the drawings, the vacuum pressure switch 10 supports the housing 11, the moving plate 12 that is energized while moving in response to the pressure change in the housing 11, and the moving plate 12. It includes a spring 13 for providing an elastic restoring force and the first and second fixing pins (14, 15) connected in series with the power source and coupled to the housing (11).

상기한 바와 같은 구조의 종래의 진공압력스위치(10)는 하우징(11)내에 압력의 변화에 따라 상기 이동판(12)이 승강 이동하게 되며, 이 때 상기 이동판(12)의 승강에 따라 상기 제1 및 제2고정핀(14, 15)와 전기적으로 단락 및 통전을 하게 됨으로써 전기적신호를 보내게 된다. In the conventional vacuum pressure switch 10 having the above-described structure, the movable plate 12 moves up and down in response to a change in pressure in the housing 11, and at this time, the movable plate 12 moves up and down. By electrically shorting and energizing the first and second fixing pins 14 and 15, an electrical signal is transmitted.

그런데, 이러한 종래의 진공압력스위치(10)는 전기적인 신호를 받기 위해서는 상기 이동판(12)과 상기 제1 및 제2고정핀(14, 15)에 동시에 통전이 되어야 하는데, 상기한 바와 같은 종래의 진공압력스위치(10)는 전기적으로 통전되기 위한 다수개의 접점이 동시에 접촉되어야 하기 때문에, 상기 이동판(12)이 경사지게 승강하는 경우가 발생할 때에는 접촉이 불량하게 되어 통전이 어려워지게 된다.However, the conventional vacuum pressure switch 10 must be energized simultaneously with the moving plate 12 and the first and second fixing pins 14 and 15 in order to receive an electrical signal. Since the vacuum pressure switch 10 of the plurality of contacts to be electrically energized must be contacted at the same time, when the movable plate 12 is raised and lowered inclined, the contact becomes poor and it becomes difficult to conduct electricity.

본 발명은 상기의 문제점을 해결하기 위하여 창출된 것으로서, 접촉신뢰성을 향상시켜 전기적노이즈(Noise) 줄일 수 있도록 그 구조를 개선시킨 진공압력스위치를 제공하는 것을 그 목적으로 한다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum pressure switch having an improved structure so as to improve contact reliability and reduce electrical noise.

본 발명의 다른 목적 및 장점들은 하기에 설명될 것이며, 본 발명의 실시예에 의해 알게 될 것이다. 또한, 본 발명의 목적 및 장점들은 특허청구범위에 나타낸 수단 및 조합에 의해 실현될 수 있다.Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

상기한 목적을 달성하기 위한 본 발명의 진공압력스위치는, 중앙에 결합홀이 형성된 커버와, 상기 커버의 내측으로 삽입되고, 상기 커버의 결합홀에 삽입되는 돌출부를 구비한 러버와, 상기 러버의 내측으로 삽입되는 접지판커버와, 상기 접지판커버의 내측에 결합하고 통전이 가능한 접지판을 포함하며, 상기 러버의 내측으로 삽입되는 접지유닛과, 일측이 상기 접지유닛의 접지판과 접촉하며, 통전이 가능한 압력스프링과, 상기 압력스프링이 내측으로 삽입되고, 상기 커버와 결합하는 하우징 및 일단이 상기 접지판과 접촉이 가능하도록 노출되고, 상기 하우징에 대하여 수직으로 착탈가능하게 결합된 중앙핀과, 일단이 상기 압력스프링과 접촉하고, 상기 하우징에 대하여 수직으로 결합된 사이드핀을 포함하는 접속핀을 구비하는 것을 특징으로 한다. The vacuum pressure switch of the present invention for achieving the above object is a rubber having a cover having a coupling hole formed in the center, a protrusion which is inserted into the cover and is inserted into the coupling hole of the cover, A ground plate cover inserted into the ground plate, a ground plate coupled to the inside of the ground plate cover and capable of conducting electricity, a grounding unit inserted into the rubber, and one side of the grounding plate of the grounding unit, A pressure spring capable of energizing, a central pin inserted into the pressure spring, a housing coupled to the cover, and a central pin exposed at one end thereof so as to be in contact with the ground plate, and detachably coupled perpendicularly to the housing; And a connection pin having one end in contact with the pressure spring and including a side pin coupled perpendicularly to the housing. .

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

이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어나 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각해서 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Prior to this, it should not be construed as being limited to the terms or words used in the specification and claims, nor to the common or dictionary meanings, and that the inventors will properly interpret the concept of terms in order to best explain their invention in the best way possible. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

따라서, 본 명세서에 개재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서, 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments shown in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, at the time of the present application, these can be replaced It should be understood that there may be various equivalents and variations in the range.

도 2는 본 발명의 바람직한 실시예에 따른 진공압력스위치의 분리사시도이다.2 is an exploded perspective view of a vacuum pressure switch according to a preferred embodiment of the present invention.

도면을 참조하면, 본 발명의 바람직한 실시예에 따른 진공압력스위치(100)는, 중앙에 결합홀(111)이 형성된 커버(110)와, 상기 커버(110)의 내측으로 삽입되고 상기 결합홀(111)에 삽입되는 돌출부(121)를 구비한 러버(120) 및 상기 커버(110)와 결합하는 하우징(160)을 포함한다.Referring to the drawings, the vacuum pressure switch 100 according to the preferred embodiment of the present invention, the cover 110 is formed with a coupling hole 111 in the center, and inserted into the cover 110 and the coupling hole ( A rubber 120 having a protrusion 121 inserted into the 111 and a housing 160 coupled to the cover 110 are included.

또한, 본 발명의 바람직한 실시예에 따른 진공압력스위치(100)는, 상기 러버(120)의 내측으로 삽입되는 접지유닛(130)과, 일측이 상기 접지유닛(130)의 접지판(1320)과 접촉하며, 통전이 가능한 압력스프링(140) 및 상기 하우징(160)에 수직으로 관통결합된 접속핀(150)을 포함한다.In addition, the vacuum pressure switch 100 according to a preferred embodiment of the present invention, the ground unit 130 is inserted into the rubber 120, one side of the ground plate 1320 and the ground unit 130 and And a contact spring 150 penetrating and vertically coupled to the housing and the pressure spring 140 which is in contact with electricity.

여기서, 상기 접지유닛(130)은, 상기 러버(120)의 내측으로 삽입되는 접지판커버(1310)와, 상기 접지판커버(1310)의 내측에 결합하고 통전이 가능한 접지판(1320)을 포함한다.Here, the ground unit 130 includes a ground plate cover 1310 inserted into the rubber 120 and a ground plate 1320 that is coupled to the inner side of the ground plate cover 1310 and is energized. do.

덧붙여, 상기 접속핀(150)은, 일단이 상기 접지판(1320)과 접촉이 가능하도 록 노출되고, 상기 하우징(160)에 대하여 수직으로 착탈가능하게 결합된 중앙핀(1510)과, 일단이 상기 압력스프링(140)과 접촉하고, 상기 하우징(160)에 대하여 수직으로 결합된 사이드핀(1520)을 포함한다.In addition, the connection pin 150 is exposed at one end so as to be in contact with the ground plate 1320, and has a central pin 1510 detachably coupled vertically with respect to the housing 160. And a side pin 1520 in contact with the pressure spring 140 and coupled perpendicularly to the housing 160.

도 3은 도 2에 도시된 진공압력스위치의 조립단면도를 나타낸 도면이며, 도 4는 도 2에 도시된 진공압력스위치의 작동상태를 나타낸 단면도이다.3 is a cross-sectional view illustrating an assembly cross-sectional view of the vacuum pressure switch illustrated in FIG. 2, and FIG. 4 is a cross-sectional view illustrating an operating state of the vacuum pressure switch illustrated in FIG. 2.

먼저 도 3을 참조하면, 본 발명의 바람직한 실시예에 따른 진공압력스위치(100)는, 상기 커버(110)와 상기 하우징(160)이 결합하게 되며, 여기서 상기 커버(110)와 하우징(160)의 내부에는 상기 러버(120)와, 접지판커버(1310)와 접지판(1320)을 포함하는 접지유닛(130)과, 상기 접지판(1320)과 접촉하여 복원력을 제공하는 압력스프링(140) 및 접속핀(150)이 결합되어 수용되어 있다.First, referring to FIG. 3, in the vacuum pressure switch 100 according to the preferred embodiment of the present invention, the cover 110 and the housing 160 are coupled to each other, where the cover 110 and the housing 160 are combined. Inside the rubber 120, a grounding unit 130 including a ground plate cover 1310 and a ground plate 1320, and the pressure spring 140 to provide a restoring force in contact with the ground plate 1320 And the connecting pin 150 is coupled and accommodated.

구체적으로 살펴보면, 상기 커버(110)에는 상기 결합홀(111)에 대응하여 상기 러버(120)의 돌출부(121)가 삽입이 되며, 상기 접지판(1320)이 내측으로 삽입된 접지판거버(1310)는 삽입돌출부(131)가 상기 러버의 돌출부(121) 내측으로 끼워지면서 상기 러버(120)의 내측으로 삽입된다.Specifically, the cover 110 is inserted into the protrusion 121 of the rubber 120 corresponding to the coupling hole 111, the ground plate gerber 1310, the ground plate 1320 is inserted inward. The insertion protrusion 131 is inserted into the rubber 120 while being inserted into the protrusion 121 of the rubber.

한편, 상기 하우징(160)에는, 착탈이 가능하게 결합된 중앙핀(1510)과, 고정결합된 사이드핀(1520)이 수직으로 결합되어 있으며, 상기 중앙핀(1510)과 사이드핀(1520)은 통전이 가능한 재질로서, 일단이 원판형의 핀헤드를 구비한 봉형상이다. 여기에서, 상기 중앙핀(1510)은 상기 접지판(1320)과 이격되어 있으며, 상기 사이드핀(1520)은 상기 압력스프링(140)과 접촉되어 있다.On the other hand, the housing 160, the center pin 1510 is detachably coupled to the fixed side pin 1520 is vertically coupled, the center pin 1510 and the side pins 1520 are As a material which can be energized, one end is a rod-shape provided with the disk-shaped pin head. Here, the center pin 1510 is spaced apart from the ground plate 1320, and the side pin 1520 is in contact with the pressure spring 140.

도 4는 상기한 진공압력스위치의 작동상태를 나타낸 단면도로서, 도면을 참 조하면, 압력이 떨어져 상기 러버(120)가 수축하게 되면, 이에 따라서 상기 접지유닛(130)과 압력스프링(140)도 하강하게 되며, 이렇게 되면, 상기 접지판(1320)에 대하여 이격되어 있던 중앙핀(1510)의 핀헤드에 상기 접지판(1320)이 접촉하게 된다. 이에 따라 상기 진공압력스위치(100)는 중앙핀(1510), 접지판(1320), 압력스프링(140), 사이드핀(1520)의 순서로 통전하게 된다.Figure 4 is a cross-sectional view showing the operating state of the vacuum pressure switch, referring to the drawing, when the pressure is reduced and the rubber 120 shrinks, accordingly, the ground unit 130 and the pressure spring 140 also In this case, the ground plate 1320 is in contact with the pin head of the central pin 1510 which is spaced apart from the ground plate 1320. Accordingly, the vacuum pressure switch 100 is energized in the order of the center pin 1510, the ground plate 1320, the pressure spring 140, the side pin 1520.

상기한 바와 같이 본 발명의 바람직한 실시예에 따른 진공압력스위치(100)에 의하면, 종래의 제1 및 제2고정핀(14, 15)을 통해 통전되었던 구조와는 달리, 압력스프링(140)의 하단측에 사이드핀(1520)을 항상 접촉시키고, 중앙의 중앙핀(1510)을 통해서만 상기 접지판(1320)이 접촉하도록 하여 통전시킴으로써, 접지판(1320)이 기울어진 상태로 하강할때 발생할 수 있는 통전의 불량을 감소시키고, 접점이 다수개인 것에 따른 접촉불량을 개선하여 진공압력스위치(100)의 전기적 접촉신뢰성을 향상시킴으로써 이에 따른 전기적노이즈를 줄일 수 있다.According to the vacuum pressure switch 100 according to the preferred embodiment of the present invention as described above, unlike the structure that was energized through the conventional first and second fixing pins (14, 15), of the pressure spring 140 The side pin 1520 is always in contact with the bottom side, and the ground plate 1320 is energized so that the ground plate 1320 is in contact only through the center pin 1510 in the center, which may occur when the ground plate 1320 is inclined. It is possible to reduce the electrical noise by reducing the failure of the current, and improve the electrical contact reliability of the vacuum pressure switch 100 by improving the contact failure according to the number of contacts.

상술한 바와 같이 본 발명의 진공압력스위치는 접촉신뢰성을 향상시켜 전기적노이즈를 줄일 수 있으며, 또한 전체 진공압력스위치의 크기를 줄였기 때문에, 제작비 절감에 따른 경제적인 효과를 제공할 수 있다. As described above, the vacuum pressure switch of the present invention can reduce electrical noise by improving contact reliability, and can also provide an economical effect due to a reduction in manufacturing cost since the size of the entire vacuum pressure switch is reduced.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 특허청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (1)

중앙에 결합홀이 형성된 커버와;A cover having a coupling hole formed in the center thereof; 상기 커버의 내측으로 삽입되고, 상기 커버의 결합홀에 삽입되는 돌출부를 구비한 러버와;A rubber inserted into the cover and having a protrusion inserted into the coupling hole of the cover; 상기 러버의 내측으로 삽입되는 접지판커버와, 상기 접지판커버의 내측에 결합하고 통전이 가능한 접지판을 포함하며, 상기 러버의 내측으로 삽입되는 접지유닛과;A grounding plate which is inserted into the rubber and a grounding plate which is coupled to the inner side of the grounding plate cover and is energized, and which is inserted into the rubber; 일측이 상기 접지유닛의 접지판과 접촉하며, 통전이 가능한 압력스프링과;A pressure spring on one side of which is in contact with the ground plate of the ground unit; 상기 압력스프링이 내측으로 삽입되고, 상기 커버와 결합하는 하우징; 및A housing inserted into the pressure spring and coupled to the cover; And 일단이 상기 접지판과 접촉이 가능하도록 노출되고, 상기 하우징에 대하여 수직으로 착탈가능하게 결합된 중앙핀과, 일단이 상기 압력스프링과 접촉하고, 상기 하우징에 대하여 수직으로 결합된 사이드핀을 포함하는 접속핀을 구비하는 것을 특징으로 하는 진공압력스위치.A central pin, the one end of which is exposed to be in contact with the ground plate and detachably coupled vertically with respect to the housing, and the side pin, which is in contact with the pressure spring, and which is vertically coupled to the housing; A vacuum pressure switch comprising a connecting pin.
KR1020050037213A 2005-05-03 2005-05-03 Vacuum pressure switch KR101076737B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160007975A (en) 2014-07-10 2016-01-21 두얼메카닉스 주식회사 Vacuum Pressure Switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160007975A (en) 2014-07-10 2016-01-21 두얼메카닉스 주식회사 Vacuum Pressure Switch

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