KR100427971B1 - An electromagnetic valve - Google Patents

An electromagnetic valve Download PDF

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Publication number
KR100427971B1
KR100427971B1 KR10-2000-0050317A KR20000050317A KR100427971B1 KR 100427971 B1 KR100427971 B1 KR 100427971B1 KR 20000050317 A KR20000050317 A KR 20000050317A KR 100427971 B1 KR100427971 B1 KR 100427971B1
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South Korea
Prior art keywords
valve
plunger
solenoid valve
magnetic
hardness
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KR10-2000-0050317A
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Korean (ko)
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KR20010091855A (en
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기시모토다쓰마
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미쓰비시덴키 가부시키가이샤
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603Multiple-way valves
    • F16K31/0624Lift valves
    • F16K31/0634Lift valves with fixed seats positioned between movable valve members
    • F16K31/0637Lift valves with fixed seats positioned between movable valve members with ball shaped valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

슬라이딩의 저해를 발생하는 원인으로 되는 자성분을 슬라이딩부분으로 끌어들이는 것을 방지하는 동시에 코스트 저감을 도모한다.It is possible to prevent the magnetic components which cause the inhibition of sliding from being drawn to the sliding portion and to reduce the cost.

전자장치의 구동에 의해 플런저(5)와 함께 동작하는 밸브(6)의 부재로서, 비자성이고 경도가 높아지는 처리를 한 부재를 사용한다.As the member of the valve 6 which operates together with the plunger 5 by the driving of the electronic device, a member which is nonmagnetic and has a high hardness treatment is used.

Description

전자 밸브{AN ELECTROMAGNETIC VALVE}Solenoid valve {AN ELECTROMAGNETIC VALVE}

본 발명은, 기름의 흐름을 제어하고, 클러치를 동작시키는 유압회로 중에서 사용되는 전자 밸브에 관한것으로 특히 차량용 변속기의 유압제어용 전자 밸브에 관한것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve used in a hydraulic circuit for controlling the flow of oil and operating a clutch, and more particularly to a solenoid valve for hydraulic control of a vehicle transmission.

도 2 는 종래로부터 사용되고 있는 상시 폐쇄형 3방향 듀티 구동 전자 밸브를 표시하는 단면도이고, OFF 상태를 표시하고있다. 이 종래의 전자 밸브는 자기회로를 구성하는 고정 철심(자성재)인 코어(31), 케이스(32), 프랜지(33), 가이드(34) 및 가동철심인 플런저(35)를 갖고 플런저(35)에 접속 또는 접촉하며, 플런저(35)와 함께 동작하는 가동 밸브인 밸브(36)를 구비하고 있다.Fig. 2 is a sectional view showing a normally closed three-way duty driving solenoid valve conventionally used, and showing an OFF state. This conventional solenoid valve has a core 31, a case 32, a flange 33, a guide 34, and a plunger 35, which is a movable iron core, constituting a magnetic circuit, and having a plunger 35. The valve 36 which is a movable valve which connects to or contacts with) and operates with the plunger 35, is provided.

또, 밸브(36)를 보유하는 밸브부는, 밸브시트(37), 통로의 전환을 하는 볼(38), 볼(38)의 동작을 보조하는 스프링(39) 및 각 부품을 보존하고 있는 하우징(40)으로 구성되고, 밸브(36)의 동작에 의해 통로의 전환을 한다.The valve portion holding the valve 36 includes a valve seat 37, a ball 38 for switching passages, a spring 39 for assisting the operation of the ball 38, and a housing for storing the respective parts ( 40, the passage is switched by the operation of the valve 36.

이 전자 밸브는 제어기기로부터 출력된 신호가, 터미널(41)로부터 보빈(42)의 외주에 권선된 코일(43)에 전류가 인가됨으로써, 코일(43)에 자기력이 생기고, 볼(38)측에 설치된 스프링(39) 및 플런저(35)측에 설치된 스프링(44)의 밸런스 하중 이상이 되면, 플런저(35)는 가이드(34)측에 흡인되고 동작한다. 이 동작에 의해 입력포트(45)로부터 들어온 제어매체는 밸브시트(37)와 볼(38)의 시트부가 열리고, 출력포트(46)와 접속된다(ON 상태이다).The solenoid valve generates a magnetic force on the coil 43 by applying a current from the terminal 41 to the coil 43 wound around the bobbin 42 from the terminal 41. When the load is equal to or greater than the balance load between the spring 39 provided on the side and the spring 44 provided on the plunger 35 side, the plunger 35 is attracted to the guide 34 side and operates. By this operation, the control medium coming in from the input port 45 opens the seat of the valve seat 37 and the ball 38 and is connected to the output port 46 (it is ON).

전류가 차단되면, 흡인력이 없어지므로 스프링(39)의 복귀력에 의해 볼(38), 밸브(36), 플런저(35)가 눌려지고 입력포트(45)와 출력포트(46)가 차단되며, 츨력포트(46)와 배출포트(47)가 열리고 출력포트(46)의 기름이 배출된다(OFF 상태이다).When the current is cut off, since the suction force is lost, the ball 38, the valve 36, the plunger 35 are pressed by the return force of the spring 39, and the input port 45 and the output port 46 are blocked. The output port 46 and the discharge port 47 are opened and the oil of the output port 46 is discharged (it is in an OFF state).

또 입력포트(45)와 출력포트(46)간 및 출력포트(46)와 배출포트(47)간에는 각각 유압회로의 차단을 위해 0 링(48),(49)이 설치되어 있다. 50 은 커버이다.In addition, 0 rings 48 and 49 are provided between the input port 45 and the output port 46 and between the output port 46 and the discharge port 47 to block the hydraulic circuit, respectively. 50 is a cover.

또 밸브(36)의 재료로서, 내구성을 고려하고 고경도(자성)재인 마르텐사이트계 스테인레스에 전체 담금질을 한 것을 사용하고 있다.In addition, as the material of the valve 36, the thing which fully quenched to martensitic stainless steel which is durability and considers high hardness (magnetic) material is used.

도 3 은 종래의 다른 전자 밸브를 표시하는 단면도이고 이 전자 밸브는 밸브(36)의 재질로서 도 2 에 표시된 것과 같이 내구성을 고려하고 고경도(자성)인 마르텐사이트계 스테인레스에 전체 담금질을 한 것을 사용하고 있다.FIG. 3 is a cross-sectional view showing another conventional solenoid valve. The solenoid valve is a material of the valve 36, which is totally quenched in martensitic stainless steel of high hardness (magnetic) in consideration of durability as shown in FIG. I use it.

또, 가이드(34)와 밸브(36) 사이에 비자성재의 슬라이딩 부재를 사용한 부시(51)를 설치함으로써 가이드(34)와 밸브(36)의 자기회로를 차단하여 철분의 흡착에 의해 슬라이딩 불량의 개선 및 자기 효율을 향상시킨 것이다.In addition, by providing a bush 51 using a non-magnetic sliding member between the guide 34 and the valve 36, the magnetic circuits of the guide 34 and the valve 36 are cut off to prevent sliding failure by adsorption of iron powder. Improvement and magnetic efficiency.

종래의 전자 밸브는 이상과 같이 구성되어 있고 자기 회로중인 밸브는 내구성을 고려해서 부재의 경도를 올릴 필요가 있었으나, 경도를 올릴 수 있는 재료는 마르텐사이트 조직을 갖고 있으므로 자성체가 된다. 그리고 밸브가 자성을 띠우면, 장기 사용에서는 오일중에 부유하는 철분을 흡착하고 밸브와 고정 철심인 가이드 사이에 철분이 들어가 밸브와 가이드가 동작되지 않는다는 문제가 있었다.The conventional solenoid valve is constituted as described above, and the valve in the magnetic circuit needs to increase the hardness of the member in consideration of durability. However, the material capable of increasing the hardness has a martensite structure and thus becomes a magnetic body. When the valve is magnetic, there is a problem that in the long-term use, the iron is adsorbed in the oil and iron enters between the valve and the guide which is a fixed iron core so that the valve and the guide do not operate.

이경우 도 3 에 표시한 바와같이 비자성의 부시를 설치하는것도 생각할 수 있으나, 코스트가 비싸진다는 문제점이 있었다.In this case, it is conceivable to install a nonmagnetic bush as shown in Fig. 3, but there is a problem that the cost is high.

본 발명은 상기와같은 문제점을 해결하기위해 된것으로 밸브의 경도를 높이는 동시에 비자성재를 사용함으로써 부시의 폐지가 가능해지고, 코스트의 억제를 할 수 있는 전자 밸브를 제공하는것을 목적으로하고 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a solenoid valve capable of suppressing the bush by increasing the hardness of the valve and using a nonmagnetic material.

본 발명의 청구항 1 에 관한 전자 밸브는, 보빈의 외주에 권선된 코일과, 이 코일에 통전함으로써 이동하는 플런저와, 이 플런저와 함께 동작하는 밸브와, 이 밸브에 의해 개폐되는 밸브시트로 되는 것으로, 밸브를 경도가 높아지는 처리를 한 비자성재로 구성한 것이다.The solenoid valve of Claim 1 becomes a coil wound around the outer periphery of a bobbin, the plunger which moves by energizing this coil, the valve which operates with this plunger, and the valve seat opened and closed by this valve, The valve is made of a nonmagnetic material that has been treated to increase its hardness.

본 발명의 청구항 2 에 관한 전자 밸브는 밸브시트를 경도가 높아지는 처리를 한 비자성재로 구성한 것이다.The solenoid valve which concerns on Claim 2 of this invention consists of a nonmagnetic material which processed the valve seat | seat to raise hardness.

도 1 은 본 발명의 실시의 형태 1 에 의한 전자 밸브를 표시하는 단면도.BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows the solenoid valve by Embodiment 1 of this invention.

도 2 는 종래의 전자 밸브를 표시하는 단면도.2 is a cross-sectional view showing a conventional solenoid valve.

도 3 은 종래의 전자 밸브를 표시하는 단면도.3 is a cross-sectional view showing a conventional solenoid valve.

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

5 : 플런저 12 : 보빈5: plunger 12: bobbin

6 : 밸브 13 : 코일6: valve 13: coil

7: 밸브시트7: valve seat

실시의 형태 1Embodiment 1

이하, 본 발명의 한 실시의 형태를 도면에 따라 설명한다. 도 1 은 본 발명의 실시의 형태 1 에 의한 전자 밸브를 표시하는 단면도이고, 도면에서 본 실시 형태에 의한 전자 밸브는 자기회로를 구성하는 고정 철심(자성재)인 코어(1), 케이스(2), 프랜지(3), 가이드(4) 및 가동 철심인 플런저(5)를 갖고 플런저(5)에 접속 또는 접촉하며 플런저(5)와 함께 동작하는 가동밸브인 밸브(6)를 구비하고 있다.EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described according to drawing. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which shows the solenoid valve by Embodiment 1 of this invention, In the figure, the solenoid valve which concerns on this embodiment is the core 1 and case 2 which are the fixed iron cores (magnetic materials) which comprise a magnetic circuit. ), A flange (3) having a flange (3), a guide (4) and a plunger (5) which is a movable iron core and connected to or in contact with the plunger (5) and operating together with the plunger (5).

밸브(6)를 보유하는 밸브부는 밸브시트(7), 통로의 전환을 하는 볼(8), 볼(8)의 동작을 보조하는 스프링(9) 및 각 부품을 보존하는 하우징(10)으로 구성되고 밸브(6)의 동작에 의해 통로의 전환을 한다.The valve portion holding the valve 6 consists of a valve seat 7, a ball 8 for switching passages, a spring 9 for assisting the operation of the ball 8, and a housing 10 for retaining each part. The passage is switched by the operation of the valve 6.

이 전자 밸브는, 제어기기로부터 출력된 신호가 터미널(11)로부터 보빈(12)의 외주에 권선된 코일(13)에 전류가 인가됨으로써 코일(13)에 자기력이 발생하고 볼(8)측에 설치된 스프링(9), 플런저(5)측에 설치된 스프링(14)의 밸런스 하중 이상이 되면 플런저(5)는 가이드측(4)에 흡인되어 동작한다. 이 동작에 의해 입력포트(15)로부터 들어온 제어매체는 밸브시트(7)와 볼(8)의 시트부가 열리고 출력포트(16)와 접속된다(ON 상태이다).This solenoid valve generates a magnetic force on the coil 13 by applying a current to the coil 13 wound from the terminal 11 to the outer periphery of the bobbin 12 from the controller 11, and generates a magnetic force on the ball 8 side. The plunger 5 is attracted to the guide side 4 and operates when it becomes more than the balance load of the spring 9 provided and the spring 14 provided in the plunger 5 side. By this operation, the control medium coming in from the input port 15 opens the seat of the valve seat 7 and the ball 8 and is connected to the output port 16 (it is ON).

전류가 차단되면, 흡인력이 없어지므로 스프링(9)의 하중에 의해 볼(8), 밸브(6), 플런저(5)가 눌려지고, 입력포트(15)와 출력포트(16)가 차단되며, 출력포트(16)와 배출포트(17)가 열리고, 출력포트(16)의 기름이 배출된다(OFF 상태이다). 또, 입력포트(15)와 출력포트(16)간 및 출력포트(16)와 배출포트(17)간에는 각각 유압회로의 차단을 위해 0 링(18),(19)이 설치되어 있다. 20은 커버이다.When the current is cut off, the suction force is lost, so that the ball 8, the valve 6, the plunger 5 are pressed by the load of the spring 9, and the input port 15 and the output port 16 are cut off, The output port 16 and the discharge port 17 open, and the oil of the output port 16 is discharged (it is in an OFF state). In addition, between the input port 15 and the output port 16, and between the output port 16 and the discharge port 17, 0 rings 18 and 19 are provided for interrupting the hydraulic circuit, respectively. 20 is a cover.

본 실시형태에서는 또 밸브(6)로서 고경도 바자성재를 사용한것이고 이로인해 내구성등은 동등하나 종래 장치에 비하면 부시를 폐지하는것이 가능해지므로 구조가 간략화되는 것이다. 자기 회로중에 사용하는 가동철심인 플런저(5)와 접촉 또는 접속됨으로써 가동하는 가동밸브인 밸브(6)로서 비자성재의 재료에 경도를 올리는 열처리를 실시한 것을 사용한다.In the present embodiment, a high hardness bazaar is used as the valve 6, and thus the durability and the like are the same. However, the structure can be simplified since the bush can be closed as compared with the conventional apparatus. As the valve 6 which is a movable valve which operates by contacting or being connected with the plunger 5 which is a movable iron core used in a magnetic circuit, the thing which performed the heat processing which raises hardness to a nonmagnetic material is used.

비자성재료로, 경도를 올린것으로는 고 망강비자성강에 대해서는 고오베 제강제 PCD 18, 즉 일본국 특개소 61-238943 호 공보에 제시된 것이 있다.Non-magnetic materials, such as those with increased hardness, are listed in Kobe Steelmaking PCD 18, Japanese Patent Laid-Open No. 61-238943, for high-magnetic non-magnetic steels.

열처리는 이온 침탄이라 불리우고 진공용기 중에서 질화처리를 하며 부품 표면의 단화피막을 제거한 후 침탄 처리온도까지 승온하고 케리어가스와 메탄 또는 프로판 가스등의 CH계 가스를 도입함으로써 침탄처리를 하는 것이 있다.Heat treatment is called ion carburizing, nitriding in vacuum vessel, removing the shoe coating on the surface of the part, heating up to the carburizing temperature, and carburizing treatment by introducing CH gas such as carrier gas and methane or propane gas.

또 다른 재료로는 비자성 스테인레스 SUS 303, 304 등의 부재에 질화처리를 한 부품을 사용해도 된다.As another material, a part subjected to nitriding on a member such as nonmagnetic stainless steel SUS 303 or 304 may be used.

이상과 같이 밸브(6)의 재질로서 고경도 비자성재를 사용하고 구조의 간소화를 도모하며 작동에 의한 변형을 방지하고, 종래의 경도가 있는 자성재를 사용하지 않음으로써, 내구성을 같게한채로 구조를 간소화해서 코스트를 내릴 수가 있다.As described above, by using a high hardness non-magnetic material as the material of the valve 6, to simplify the structure, to prevent deformation due to the operation, and to use the magnetic material of the conventional hardness, the structure with the same durability The cost can be reduced by simplifying

이 실시의 형태의 전자밸브는 이상 설명한 바와 같이 구성되어 있고 가동 철심과 함께 동작하는 부품에 비자성재를 사용하였으므로, 슬라이딩의 저해를 발생하는 자성분을 슬라이딩부분으로 끌어드리는 일이 없고, 종래와 같은 내구성을 갖고 있으면서 코스트 저감이 가능해진다.Since the solenoid valve of this embodiment is constructed as described above and a nonmagnetic material is used for the component operating together with the movable iron core, the magnetic component that causes the inhibition of sliding is not attracted to the sliding portion. Cost reduction is possible while having durability.

실시의 형태 2Embodiment 2

상기 실시의 형태 1 에서는, 밸브(6)의 재질로서 고경도 비자성재를 사용한것을 표시하였으나, 밸브시트(7)의 재질로서 고경도 비자성재를 사용할 수도 있다. 이로써, 밸브시트(7)에 붙을 가능성이 있는 철분도 흡착하는 일이 없으므로 더욱 철분에 대한 성능이 향상된다.In the first embodiment, a high hardness nonmagnetic material is used as the material of the valve 6, but a high hardness nonmagnetic material may be used as the material of the valve seat 7. As a result, since the iron which may adhere to the valve seat 7 is not adsorbed, the performance with respect to iron is further improved.

본 발명의 청구항 1에 관한 전자밸브에 의하면 보빈의 외주에 권선된 코일과, 이 코일에 통전함으로써 이동하는 플런저와 이 플런저와 함께 동작하는 밸브와, 이 밸브에 의해 개폐되는 밸브시트로 된 것으로서 밸브를 경도가 높아지는 처리를 한 비자성재로 구성하였으므로 슬라이딩의 저해를 발생하는 자성분을 슬라이등부분으로 끌어드리는 일이 없고 종래와 같은 내구성을 가지면서 코스트 저감을 가능하게 한다.According to the solenoid valve of Claim 1 of this invention, the coil wound on the outer periphery of a bobbin, the plunger which moves by energizing this coil, the valve which operates with this plunger, and the valve seat opened and closed by this valve, Since it is composed of a non-magnetic material subjected to a process of increasing the hardness, it is possible to reduce the cost while maintaining the durability as in the prior art, without attracting the magnetic component that causes the inhibition of sliding to the slice back part.

본 발명의 청구항 2 에 관한 전자 밸브에 의하면 밸브시트를 경도가 높아지는 처리를 한 비자성재로 구성하였으므로, 철분이 밸브시트에 흡착하는 일이 없어진다.According to the solenoid valve of Claim 2 of this invention, since the valve seat was comprised from the nonmagnetic material which processed the hardness, iron adsorb | sucks to a valve seat.

Claims (2)

보빈의 외주에 권선된 코일과, 이 코일에 통전함으로써 이동하는 플런저와, 이 플런저와 함께 동작하는 밸브와, 이 밸브에 의해 개폐되는 밸브시트로된 전자 밸브에서, 상기 밸브를 경도가 높아지는 처리를 한 비자성재로 구성한것을 특징으로하는 전자 밸브.In the solenoid valve consisting of a coil wound around the bobbin, a plunger moving by energizing the coil, a valve operating with the plunger, and a valve seat opened and closed by the valve, the hardness of the valve is increased. Solenoid valve, characterized in that composed of a nonmagnetic material. 제 1항에 있어서,The method of claim 1, 밸브시트를 경도가 높아지는 처리를 한 비자성재로 구성한것을 특징으로하는 전자 밸브.Solenoid valve characterized in that the valve seat is made of a non-magnetic material treated with a high hardness.
KR10-2000-0050317A 2000-03-16 2000-08-29 An electromagnetic valve KR100427971B1 (en)

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