CN107131165B - Solenoid valve and pressure fluid control equipment - Google Patents
Solenoid valve and pressure fluid control equipment Download PDFInfo
- Publication number
- CN107131165B CN107131165B CN201611151886.5A CN201611151886A CN107131165B CN 107131165 B CN107131165 B CN 107131165B CN 201611151886 A CN201611151886 A CN 201611151886A CN 107131165 B CN107131165 B CN 107131165B
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- Prior art keywords
- valve
- pressure fluid
- slide
- valve body
- solenoid valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The present invention relates to solenoid valves and pressure fluid to control equipment.Solenoid valve (10) and comprising solenoid valve (10) pressure fluid control equipment (12) include: bobbin (132), electromagnetic coil (134) are wound on the bobbin；Slide core (116) is shifted with the energization and power-off of electromagnetic coil (134)；And tubular element (64), it is used as stationary core, a part of slide core (116) is inserted into the stationary core.First pilot pressure input port (38) is formed in valve body (22), tubular element (64) is accommodated in valve body (22), and the second pilot pressure input port (98) is formed in tubular element (64).At least the first pilot pressure input port (38), and preferably two ports (38,98) extend along the direction for the direction of displacement for being approximately perpendicular to slide core (116).
Description
Technical field
The present invention relates to a kind of solenoid valve and wherein incorporate the pressure fluid control equipment of this solenoid valve.
Background technique
Solenoid valve includes: electromagnetic coil, is wrapped on bobbin；And shell, bobbin and electromagnetic coil are accommodated in
Wherein.Solenoid valve further comprises slide core.By making electromagnetic coil be powered, slide core is shifted from initial position, while coil
Spring is compressed.On the other hand, when the energization of electromagnetic coil stops, as the knot being resiliently biased by coil spring stretching, extension
Fruit, slide core are back to its initial position.
When slide core shifts in this way, valve body is integratedly shifted, and is separated or seated against with valve seat
On valve seat.As a result, solenoid valve is in the valve opening state or valve closing state.
For example, the type solenoid valve and slide valve are incorporated in one as disclosed in Japanese Utility Model bulletin 52-035532
It rises and is used as pressure fluid and control equipment.In this configuration, solenoid valve role is supplied with pilot pressure, for making line
Axis shifts in the inside of slide valve, or pause supply pilot pressure.
Summary of the invention
It is controlled in equipment according to the pressure fluid of Japanese Utility Model bulletin 52-035532, slide valve and solenoid valve are linear
Arrangement uses arranged in series.In this case, the flow path of pressure fluid to the end of solenoid valve more specifically supplies
The flow path for being used as the pilot pressure of the valve chamber from slide valve to solenoid valve to pressure and supply are from the valve chamber of solenoid valve to slide valve
The flow path of pressure fluid of first guide cavity arranged with clustered pattern.In particular, in the case of small size solenoid valve, because of shape
It is limited at the space of each flow path, so the design and processing of flow path are complicated.
The main object of the present invention is to provide a kind of solenoid valve, wherein the design of flow path easy to carry out and wherein
The processing of flow path.
The pressure fluid for wherein incorporating aforementioned electromagnetic valve it is a further object of the present invention to provide one kind controls equipment.
Solenoid valve according to the present invention is characterized in that:
Bobbin, electromagnetic coil are wound around the bobbin；
First stationary core is inserted into the inside of the hollow space of bobbin；
Slide core is inserted into hollow space, and shifts with the energization of the electromagnetic coil and power-off；
Second stationary core, the slide core are inserted into second stationary core；And
Valve body is accommodated in the inside of the second stationary core, and shifts with the displacement of slide core at relationship is followed；
Wherein, the pressure fluid supply passageway for supplying pressure fluid to valve member is formed in the second stationary core,
To extend along the direction for the direction of displacement for being approximately perpendicular to valve body.
In the solenoid valve according to routine techniques, for supplying pressure fluid to the pressure fluid supply passageway of valve member
It is formed to extend along the direction of displacement of slide core.In contrast, in the present invention, pressure fluid supply passageway is along substantially
Extend perpendicular to the direction of the direction of displacement of slide core.Therefore, pressure fluid supply passageway and other flowing roads be can be avoided
The aggregation arrangement of diameter (for example, flow path that pressure fluid is drawn from the valve member of solenoid valve).
In this way, be formed as edge by that will be used to pressure fluid is supplied to the pressure fluid supply passageway of valve member
Be approximately perpendicular to slide core direction of displacement direction extend, the flow path other than pressure fluid supply passageway can
Path by being different from pressure fluid supply passageway is formed.
More specifically, in accordance with the invention it is possible to which the aggregation in narrow space is avoided to arrange multiple flow paths.Therefore,
While the size of solenoid valve can reduce, the design and processing of the flow path around the periphery of solenoid valve are easy to real
It applies.
In addition, the second stationary core is preferably made of component, the component is integrally comprised: flange, abuts bobbin；With
And hollow space, valve member are stored wherein.In this case, compared to as independent component (independent main body) provide flange and
The quantity of the case where hollow space, component are reduced.Thus, by this total amount, it is conducive to assembling solenoid valve, simplifies assembling behaviour
Make.
For example, the solenoid valve constructed in this way, is used by the attachment hole of insertion attachment object.In the situation
Under, the containment member for sealing attachment hole is attached to the side wall of solenoid valve.The quantity of containment member be preferably one individually it is close
Seal component.Thus, the quantity of the component of solenoid valve is further reduced.
In addition, valve body is preferably formed as a region of slide core.In this case, it does not need to provide for valve rod and valve
The independent component of ontology etc..Thus, because the quantity of the component of solenoid valve is further reduced, assembling solenoid valve becomes more to hold
Easily, therefore assembly operation is further simplified.
In addition, another embodiment according to the present invention, provides a kind of pressure fluid control equipment comprising:
Solenoid valve constructs in the above described manner；
Slide valve comprising spool, spool is by elastic component along the direction elastic biasing towards first guide cavity；And
Valve body, slide valve and solenoid valve are arranged therein；
Wherein, pressure fluid supply communication paths are formed in valve body, for that will be pressed by pressure fluid supply passageway
Force flow body is supplied from slide valve to valve member；
Pressure fluid supplies communication paths and is used as pilot pressure supply passageway, supplies first for the first guide cavity relative to slide valve
Pilot power；And
Solenoid valve switches between the connected state and non-interconnected state between the first guide cavity and input port of slide valve.
More specifically, solenoid valve described above is to slide valve supply pressure fluid as pilot pressure.As it does so, by making
Spool shifts in the inside of slide valve, controls the output of pressure fluid.
Equipment is controlled using pressure fluid, it is preferred that the second stationary core is used as the stop part for Resistance level axis.At this
In the case of, stop part is incorporated into not as individual component, therefore, can be to the shifting of spool while simplifying its construction
Position amount setting limitation.
When in conjunction with attached drawing, from being described below, above-mentioned and other purposes, feature and advantage of the invention will become more
Obviously, wherein show the preferred embodiment of the present invention by illustrative example.
Detailed description of the invention
Fig. 1 is constructed to include that the pressure fluid of the solenoid valve of embodiment according to the present invention controls the overall signal of equipment
Property vertical sectional view；
Fig. 2 is to show the general schematic vertical sectional view of the valve opening state of pressure fluid control equipment of Fig. 1；
Fig. 3 be constructed to include the pressure fluid control equipment of solenoid valve according to another embodiment of the present invention totality
The cross-sectional view of diagrammatic vertical；And
Fig. 4 is to show the general schematic vertical sectional view of the valve opening state of pressure fluid control equipment of Fig. 3.
Specific embodiment
The preferred embodiment of solenoid valve according to the present invention is described in detail hereinafter with reference to attached drawing.According to the present embodiment, show
An example as solenoid valve is gone out, solenoid valve is incorporated in so-called box type pressure fluid control devices in this example embodiment
In, pressure fluid control equipment is attached to the engine main body as the engine in Automobile drive source and being capable of integral replacing.
In addition, in the following explanation, for ease of understanding, using in the following description term "lower" and "upper" mean to scheme accordingly
In lower section and top direction, when pressure fluid control equipment be committed to be not intended to be limiting any certain party in actual use
To.
Fig. 1 is constructed to include the general schematic for controlling equipment 12 according to the pressure fluid of the solenoid valve 10 of the present embodiment
Vertical sectional view.Pressure fluid control equipment 12 is inserted into the attachment hole 16 being formed in engine main body 14, is used for for changing
It is mounted on the operating characteristic of the valve-operating system of the engine on automobile.In fig. 1 it is illustrated that being in the pressure of valve closing state
Fluid control devices 12.
In addition to solenoid valve 10, it further includes slide valve 20 and hollow elongated valve body 22 that pressure fluid, which controls equipment 12,.Slide valve
20 and the valve member 24 (being described later on) of solenoid valve 10 be accommodated in the reception hole 26 of the longitudinal direction extension along valve body 22
It is internal.The plate-like recess portion 28 for being sunk or being recessed with disc shaped is formed on the bottom surface inside reception hole 26.
In addition, input port 30, output port 32 and release port 34 are substantially formed in valve in same phase from below
On the side wall of main body 22.Relative to port 30,32,34, the first pilot pressure output port 36 and the first pilot pressure input terminal
Mouth 38 is formed on side wall with about 180 ° of phase difference.The interior section (reception hole 26) of valve body 22 passes through five separate ends
Mouth 30,32,34,36,38 is connected to outside.
Recess portion 40 is formed in this way on the side wall of valve body 22, so that its bottom is in the shape of flat-surface shapes
Formula.Recess portion 40 sink or is recessed towards the side of reception hole 26, is based on the reason, in bottom table on the direction that recess portion 40 is recessed
Gap is formed between face and the inner wall of attachment hole 16.Gap forms the flow path for pressure fluid (for example, hydraulic oil).
Hereinafter, which is referred to as " the first pilot pressure supplies flow path ", is referred to by appended drawing reference 42.
First pilot pressure output port 36 and the first pilot pressure input port 38 are formed in the direction of the recess of recess portion 40
Bottom surface on.
First containment member 44 is mounted on the upper portion of valve body 22.Between valve body 22 and the inner wall of attachment hole 16
Gap sealed by the first containment member 44.In other words, attachment hole 16 is sealed by the first containment member 44.In the present embodiment
In, the sealing for sealing attachment hole 16 is only provided by the first containment member 44.In other words, in addition to the first containment member 44 with
Outside, it is fitted without containment member again on the side wall of valve body 22.
The slide valve 20 that the lower part of valve body 22 is arranged in includes spool 50, and spool 50 is accommodated in the inside of reception hole 26.Line
Axis 50 is made of generally cylindrical hollow body, in generally cylindrical hollow body, by way of integrally combining inside it
Form spring housing 52 and pressure fluid release flow path 54.The internal diameter of spring housing 52 is set greater than pressure fluid release stream
The internal diameter in dynamic path 54.Therefore, step part is formed between spring housing 52 and pressure fluid release flow path 54.
First annular recess portion 56 and the second annular recess 58 are formed on the side wall of spool 50 from below with this sequence.Online
The transverse holes 60 being connected between outwardly and inwardly (the pressure fluid release flow path 54) of axis 50 are formed in corresponding to the second ring
At the position of shape recess portion 58.
In addition, generally cylindrical stud bump 62 is formed on the end surfaces of spool 50 in a manner of protruding outward.Protrusion 62
The rear surface 65 of the tubular element 64 (the second stationary core) of solenoid valve 10 is constituted against (contact), thus spool 50 is blocked
(blocking) and prevent it from shifting further up.In addition, aperture 66 is formed in protrusion 62, abuts and discharged with pressure fluid
Flow path 54 is connected to.
First guide cavity 68 is formed between the upper end face of spool 50 and the rear surface 65 of tubular element 64.Spool 50 along to
Lower direction is supplied to the pressure fluid pressing of first guide cavity 68.
In the spool 50 constituted in the foregoing manner, first coil spring 70 is accommodated in spring housing 52, first coil bullet
The lower end of spring 70 rests against on the bottom surface of plate-like recess portion 28, and the upper end of first coil spring 70 rests against step part
On.Therefore, spool 50 is resiliently biased by first coil spring 70 towards 10 side of solenoid valve.
As shown in Figure 1, in spool 50, input port 30 and first guide cavity 68 be in therebetween be connected to the state being cut off
When lower, the connection between input port 30 and output port 32 is blocked, and output port 32 and release port 34 are positioned to
It communicates with each other.On the other hand, when input port 30 and first guide cavity 68 are in connected state, input port 30 and output port 32
In connection, and output port 32 and release port 34 are located so that being connected to and be cut off (see Fig. 2) therebetween.At this point, guide
Chamber 68 is connected to by aperture 66 with pressure fluid release flow path 54.
Solenoid valve 10 includes: valve member 24, is incorporated in the reception hole 26 of valve body 22；And electromagnetic component 80,
It is arranged in 24 top of valve member and exposes from valve body 22.It the use of solenoid valve 10 is in the present embodiment two way valve.
Tubular element 64 is made of magnetic material and positions and fix relative to valve body 22.Fixed in this way
In the state of position and fixed tubular element 64, tubular element 64 is used as the yoke for electromagnetic component 80, or, in other words, it uses
Make the second stationary core.
The bottom tubular portion 82 (hollow space) of insertion reception hole 26 is formed in tubular element 64 with integral manner,
And it is located near the upper end of tubular portion 82 from side wall larger diameter flange 84 outstanding in an outward direction.More specifically, it manages
Shape component 64 (the second stationary core) is made of a single component, and single component includes tubular portion 82 and flange 84, as it
Region.In addition, upper end face of the rear surface of flange 84 against valve body 22, annular second containment member 86 is between flange 84
Between valve body 22.Thus, by the intervention of the second containment member 86, reception hole 26 is sealed.
Tubular portion 82 is configured to hollow body, is formed along the valve reception hole 88 that the longitudinal direction of tubular portion 82 extends
Inside it.Flat surface portions 90 are processed as even shape from its rear surface along side wall, are formed in tubular portion 82
On.The second pilot pressure output port 92 being connected to valve reception hole 88 is formed in flat surface portions 90.At it in addition to flat
In the region of smooth surface portion 90, the side wall of tubular portion 82 is formed with curved shape along the inner wall of reception hole 26.With this phase
Instead, flat surface portions 90 are flat surface surfaces as described above.Therefore, the state of reception hole 26 is inserted into tubular portion 82
In, the inner wall of flat surface portions 90 and reception hole 26 does not contact.
More specifically, gap is formed between flat surface portions 90 and reception hole 26.This gap is used as second first
Pilot power supplies flow path 94, can realize connection between the second pilot pressure output port 92 and first guide cavity 68.
At the position for being about 180 ° of phase difference relative to flat surface portions 90, the input of the second pilot pressure is formed
Port 98 (pressure fluid supply passageway), the second pilot pressure input port 98 (pressure fluid supply passageway) and the first first pilot
Power input port 38 (pressure fluid supply communication paths) connection.
In this case, both the first pilot pressure input port 38 and the second pilot pressure input port 98 along relative to
The longitudinal direction generally perpendicular direction of valve body 22 and tubular portion 82 extends.More specifically, the first pilot pressure inputs
Port 38 and the second pilot pressure input port 98 are formed as (wide along the transverse direction for the vertical direction being approximately perpendicular in Fig. 1 and Fig. 2
Degree) direction extension.
The internal diameter of valve reception hole 88 is diametrically being risen from below with three-level Sequence Spread.More specifically, valve reception hole 88
Including reduced diameter section 100, mid diameter section 102, conical expansion diameter segment 104 and enlarged diameter section 106.Second pilot pressure is defeated
Inbound port 98 is generally perpendicularly open on minimum reduced diameter section 100.
In addition, valve seat member 110 is pressed into mid diameter section 102.Valve seat member 110 passes through against by reduced diameter section 100
The ring-shaped step formed with mid diameter section 102 is secured in place.The valve opening 112 extended vertically through is formed in valve seat member
In 110.Valve seat 114 is formed at the upper opening of valve opening 112.The valve body 118 of slide core 116 rest against on valve seat 114 and
It is separated with valve seat 114.The distal end of valve body 118 is processed as the general conical shape of the shape corresponding to valve seat 114.
One end of the second pilot pressure output port 92 is open at conical expansion diameter segment 104.Therefore, work as activity
When the valve body 118 of core 116 is rested against on valve seat 114, into connection dissengaged positions (see Fig. 1), in this state the second guide
Connection between pressure input mouth 98 and the second pilot pressure output port 92 is cut off.In contrast, when slide core 116
When valve body 118 is separated with valve seat 114, into connected state (see Fig. 2), the second pilot pressure input port 98 in this state
And the second connection between pilot pressure output port 92 is established.
The lower end of slide core 116 is inserted into enlarged diameter section 106 together with joint member 120, and joint member 120 is by non-magnetic
Property material is made.Via hole passes through for valve body 118, is formed through the bottom surface of joint member 120.Valve chamber 122 by
The upper end face of valve seat member 110 and the rear surface of joint member 120 limit.
The electromagnetic component 80 for constituting solenoid valve 10 includes: generally cylindrical bobbin 132, and hollow space 130 is formed therein；
Electromagnetic coil 134 is wrapped on bobbin 132；And slide core 116 and stationary core 138 (the first stationary core), both of which
It is made and is accommodated in by magnetic material in the hollow space 130 of bobbin 132.
The rear surface of bobbin 132 is by third containment member 140 against the flange 84 of tubular element 64.In bobbin
Sealing is formed by third containment member 140 between 132 and tubular element 64.In addition, the larger diameter flange of joint member 120 is clipped in
Between the upper end face of the tubular portion 82 of bobbin 132 and tubular element 64.
Bobbin 132 is formed from a resin, and is incorporated in shell in the state that electromagnetic coil 134 is wound about
142 inside.More specifically, the lower end of shell 142 is crimped around the upper end of valve body 22, due to this, shell 142
It is supported on valve body 22 together with bobbin 132, the upper end of flange 84 and valve body 22 is covered by shell 142.
The low top surface for opening shell 142 of the upper end face of bobbin 132, annular 4th containment member 144 be arranged in this two
Between a component.Sealing is formed by the 4th containment member 144 between bobbin 132 and shell 142.The formation of outlet port 146
In a part of the side surface of shell 142.The connector 148 being integrally formed with bobbin 132 is prominent from outlet port 146.
The power supply terminal 150 being electrically connected with electromagnetic coil 134 is arranged in the inside of connector 148.
The upper end of stationary core 138 and slide core 116 is inserted into the hollow space 130 of bobbin 132.In slide core 116
Rear surface on, valve body 118 is formed as along prominent towards the direction of valve seat 114, and on it on end surfaces, columnar protrusions
154 are formed as along prominent towards the direction of stationary core 138.
On the other hand, bottom spring reception hole 156 is formed in stationary core 138, and the second coil spring 158 is accommodated in spring
In reception hole 156.More specifically, the lower end of the second coil spring 158 rests against on the upper end face of slide core 116, column
Shape protrusion 154 is inserted into its interior section.On the other hand, the upper end of the second coil spring 158 seats against spring reception hole 156
On top surface.Therefore, the second coil spring 158 is resiliently biased the valve sheet of slide core 116 along the direction towards 114 side of valve seat
Body 118.
It is constructed in the above described manner substantially according to the solenoid valve 10 of the present embodiment.Next, the control of combination pressure fluid is set
Standby 12 operation provides the operation about solenoid valve 10 and the explanation of advantage.
By the way that valve body 22 to be inserted into the attachment hole 16 of engine main body 14, and shell 142 is positioned and is fixed to
Engine main body 14, pressure fluid control equipment 12 are attached to engine main body 14.At this point, attachment hole 16 is by the first containment member
44 sealings.
If electric current does not supply to electromagnetic coil 134, magnetic field is not generated in electromagnetic coil 134.Therefore, attraction
It will not be acted on slide core 116 based on magnetic force.On the other hand, due to the second coil spring 158, elastic force acts on slide core
On 116.By this elastic force, slide core 116 is pressed down on towards 110 side of valve seat member.As a result, valve body 118 rests against
On valve seat 114.More specifically, solenoid valve 10 is in valve closing state.
When solenoid valve 10 is in valve closing state, the elasticity applied by the second coil spring 158 to slide core 116 is inclined
Power is set, slide core 116 is resiliently biased towards 110 side of valve seat member.As a result, the valve body 118 of slide core 116 rests against
Connection on valve seat 114, and between valve opening 112 and valve chamber 122 is cut off.
On the other hand, first guide cavity 68 is connected to release port 34 by flow path, and flow path is by being formed in spool 50
Aperture 66, pressure fluid release flow path 54 and transverse holes 60 in protrusion 62 are constituted.Therefore, first guide cavity 68 becomes to have
Pressure identical with release port 34.
At this point, the elastic force that first coil spring 70 is applied to spool 50 is more than to be applied by the pressure fluid inside first guide cavity 68
To the pressing force of spool 50.As a result, the upper end face of the protrusion 62 of spool 50 is in the rear surface 65 for abutting tubular element 64
Uppermost position in fig-ure.As a result, input port 30 is closed by the major diameter side wall of spool 50, and therefore, input port 30 and output port
Connection between 32 is cut off.On the other hand, output port 32 and release port 34 are by being formed in first annular 56 He of recess portion
Flow path connection between reception hole 26.As a result, in the case where electric current does not supply to electromagnetic coil 134, from (not shown)
The pressure fluid of pressure fluid supply source supply is not introduced into the inside of valve body 22.
In contrast, when electric current supplies the supply of terminal 150 to electromagnetic coil 134 by power, electromagnetic coil 134,
In stationary core 138, magnetic force especially is generated in the flange 84 of tubular element 64 (the second stationary core).Because being caused by this magnetic force
Attraction be more than the second coil spring 158 elastic force, slide core 116 is attracted and shifts upwards towards 138 side of stationary core.
As a result, valve body 118 is integrally shifted with slide core 116 and is separated from valve seat 114.More specifically, solenoid valve 10 is in
Opening state.
As that can be understood from the foregoing that, slide core 116 is shifted along the longitudinal direction of valve body 22 and tubular portion 82.
As a result, the direction that the first pilot pressure input port 38 and the second pilot pressure input port 98 extend is approximately perpendicular to slide core
116 direction of displacement.In addition, the hollow space 130 of the upper end insertion bobbin 132 of slide core 116, under slide core 116
End is inserted into the enlarged diameter section 106 (valve reception hole 88) of tubular element 64 by joint member 120, living during its displacement
The tubular element 64 and joint member 120 that dynamic core 116 is inserted by it guide.
At this point, introducing pressure fluid from input port 30.Just as will be discussed later, this is because when spool 50 shifts
When, the position of first annular recess portion 56 reaches the position for corresponding to input port 30.In addition, the pressure introduced from input port 30
Fluid, which passes through from the first pilot pressure output port 36 and passes through the first pilot pressure, supplies flow path 42, in addition,
After the first pilot pressure input port 38 and the second pilot pressure input port 98, the small straight of valve reception hole 88 is reached
Diameter section 100.
Because reduced diameter section 100 is connected to valve chamber by valve opening 112 as described above, valve body 118 is spaced apart with valve seat 114
122.Thus, after having been supplied to valve chamber 122, pressure fluid passes through the second pilot pressure output port 92 and the second guide
Pressure supplies flow path 94, is supplied to first guide cavity 68.
When the pressing force of the pressure fluid of supply to first guide cavity 68 is more than to be applied to spool 50 by first coil spring 70
When elastic force, spool 50 is pressed downwardly and shifts, and the rear surface of spool 50 is against the bottom surface of reception hole 26.In other words
It says, spool 50 reaches its extreme lower position.At this point, transverse holes 60 are in the position corresponding to 34 position of release port.
As it does so, input port 30 and output port 32 are arranged to by being made of the second annular recess 58 and reception hole 26
Flow path and be connected to, and connection between output port 32 and release port 34 is cut off.More specifically, in valve open shape
In state, the pressure fluid supplied from input port 30 is supplied to first guide cavity 68, while being brought out from output port 32.Supply is extremely
The overpressure fluid of first guide cavity 68 is passing through from aperture 66 and is passing through pressure fluid release flow path 54 and transverse direction
After hole 60, it is brought out from release port 34.
By operating slide valve 20 in the foregoing manner, to switch the port of pressure fluid output, the output quilt of pressure fluid
Control.As a result, it is possible to change the operating characteristic for constituting the valve-operating system of engine in desired manner.
When stopping supplying an electric current to electromagnetic coil 134, magnetic force thereon disappears, while the attraction quilt of slide core 116
Cancel.Therefore, elastic force is applied to slide core 116 by the second coil spring 158, as a result, valve body 118 and slide core 116 1
It rises and is pressed downwardly, to restore state shown in fig. 1.More specifically, valve body 118 rests against on valve seat 114, thus electric
Magnet valve 10 is in valve closing state.
In addition, at this point, the spool 50 that the pressure fluid inside first guide cavity 68 is raised presses.As a result, pressure fluid is
After passing through from aperture 66 and passing through pressure fluid release flow path 54 and transverse holes 60, drawn from release port 34
Out.In addition, remaining pressure fluid is also from release end in the flow path being made of the second annular recess 58 and reception hole 26
Mouth 34 discharges.
The rear surface 65 of protrusion 62 on the upper end face of spool 50 against tubular portion 82.Spool 50 is hindered as a result,
Gear, prevents spool 50 from shifting further up.More specifically, tubular element 64 is used as stop part, prevents appointing for spool 50
What is more than necessary displacement.
Incidentally, in the present embodiment, the first pilot pressure input port 38 and the second pilot pressure input port 98
Flow path of the pressure fluid from the supply of slide valve 20 to solenoid valve 10 is defined, along the displacement for being approximately perpendicular to slide core 116
The direction in direction extends.Based on the reason, or even the case where solenoid valve 10 and the connection of slide valve 20 are without any intervention component
Under, it is arranged with the aggregation that in the present embodiment, can be avoided multiple independent flow paths.As a result, although pressure fluid control
Control equipment 12 is dimensionally reduced and reducing its size in a longitudinal direction, still, for example, the first pilot pressure input terminal
Mouthfuls 38 and second pilot pressure input port 98 and supply pressure fluid to the first guide cavity 68 of slide valve 20 etc. from solenoid valve 10
Flow path be readily able to be made of various corresponding flow paths.
In particular, being connected to the first pilot pressure supply flow path 42 of first guide cavity 68 along longitudinal side according to the present embodiment
To being formed on the side wall of valve body 22.As a result, it is possible to defeated conducive to the first pilot pressure input port 38 and the second pilot pressure
The path of inbound port 98 is designed and the processing of above-mentioned port 38,98.
In this case, the first pilot pressure supply flow path is formed by processing or carrying out chamfering with flat surfaces
42, in a manner of identical with flow surface part 90, further it is conducive to the first pilot pressure input port 38 and the second first pilot
The design and processing in the path of power input port 98.
In addition, the tubular element 64 of the second stationary core of composition includes tubular portion 82 and flange 84 with integral manner.Therefore,
The quantity of component can be reduced.In addition, conducive to the assembling of solenoid valve 10, simplifying assembly operation by this total amount.
In addition, in the present embodiment, the containment member for sealing attachment hole 16 is only provided by the first containment member 44.This
Outside, valve body 118 is arranged on slide core 116, therefore, there is no need to provide the independent component for valve rod and valve body etc..Knot
Features described above is closed, the quantity of the component of solenoid valve 10 (pressure fluid controls equipment 12) can be further decreased.As a result, further
Conducive to the assembling of solenoid valve 10, assembly operation is simplified.
The present invention is not limited to above-described embodiment specifically, can carry out various modifications to embodiment, without departing from this hair
Bright range.
For example, the first pilot pressure supply flow path 42 can be formed in the inside of valve body 22.
In addition, instead of slide core 116, it can be using the slide core for being not provided with valve body 118 thereon.In other words, movable
Core and valve body are capable of forming as independent component.In this case, another component valve rod etc. can be between slide core and valve
Between ontology.In addition, the pressure fluid control equipment comprising solenoid valve can also be configured to triple valve.
As specific example, Fig. 3 and Fig. 4 show another embodiment of pressure fluid control equipment.In addition, in addition to hereafter
By the composition element of description, the composition element that element is substantially identical to pressure fluid control equipment 12, therefore, these yuan are constituted
Part is referred to by same reference numerals, omits the detailed description to this feature.Although in addition, it is given with Fig. 1 and Fig. 2 shows structure
At the identical title of element, for convenience's sake, this element that constitutes is referred to by different appended drawing references.
In the valve body 182 of the pressure fluid control equipment 180 shown in Fig. 3, the first output port 184, input port
186, second output terminal mouth 188 and release port 190 rise to be formed with this sequence from below.In addition, valve member 192 includes:
One valve seat member 196 is accommodated in the valve reception hole 194 of tubular element 193 (the second stationary core)；Second valve seat member 198；
Spherical valve body 200；Valve rod 202；Bearing 204 and guiding piece 206.
When electric current does not supply to electromagnetic coil 208, valve rod 202 is by the rear surface of slide core 210 from the second coil
Spring 212 receives elastic bias force, and valve body 200 is pressed down on by 210 rear surface of slide core, and valve body 200 rests against the
On first valve seat of one valve seat member 196.Therefore, solenoid valve 214 is in valve closing state.At this point, the connection of input port 186 the
Two output ports 188, the first output port 184 are connected to release port 190.
On the other hand, when electric current is supplied to electromagnetic coil 208, slide core 210 is magnetically attracted, as shown in figure 4, movable
The elastic bias force of core 210 and the second coil spring 212 mutually upward displacement instead.Therefore, the reception of valve body 200 has reached small
The pressing force of the pressure fluid of diametric hole 215, from the first valve seat of the first valve seat member 196 separation after, valve body
200 rest against on the second valve seat of the second valve seat member 198.
More specifically, solenoid valve 214 is in the valve opening state.As a result, the second pilot pressure input port 216 passes through the
Valve chamber 218 inside one valve seat member 196 is connected to first guide cavity 220, and therefore, pressure fluid is supplied to first guide cavity 220.
As it does so, constituting the spool 224 of slide valve 222 and the elastic bias force mutually displacement downwards instead of first coil spring 226.
At this point, input port 186 is connected to the first output port 184, second output terminal mouth 188 is connected to release port 190.
Even in above-mentioned other embodiments, the first pilot pressure input port 227 and the second pilot pressure input port
216 extend along the direction for the direction of displacement for being approximately perpendicular to slide core 210.In addition, the sealing structure being arranged on valve body 182
Part is only the first containment member 228.As a result, obtaining effect identical with the effect of above-described embodiment.
Certainly, both solenoid valves 10,214 shown in above-described embodiment can be used alone, as with two slide valves 20,
222 separated individual components.
Claims (4)
1. a kind of pressure fluid controls equipment, the pressure fluid control equipment includes:
Solenoid valve,
Slide valve, the slide valve include spool, and the spool is resiliently biased by elastic component along towards the direction of first guide cavity；And
Valve body, the slide valve and the solenoid valve are arranged in the valve body,
The solenoid valve includes:
Bobbin is wound with electromagnetic coil around the bobbin；
First stationary core, first stationary core are inserted through the inside of the hollow space of the bobbin；
Slide core, the slide core is inserted into the hollow space, and moves with the energization of the electromagnetic coil and power-off
Position；
Second stationary core, the slide core are inserted into second stationary core；And
Valve body, the valve body are incorporated in the inside of second stationary core, and with the displacement of the slide core at
It is shifted with relationship；
Wherein, the pressure fluid supply passageway for supplying pressure fluid to valve member is formed in second stationary core,
To extend along the direction for the direction of displacement for being approximately perpendicular to the valve body,
Pressure fluid supply communication paths are formed in the valve body, for passing through the pressure fluid from the slide valve
The pressure fluid supply passageway is supplied to the valve member；
The pressure fluid supply communication paths are used as pilot pressure supply passageway, for the guide relative to the slide valve
Chamber supplies pilot pressure；And
Connected state and non-interconnected state of the solenoid valve between the first guide cavity and the input port of the valve body it
Between switch over,
Second stationary core is made of the component for integrally comprising following part: flange, and the flange abuts the bobbin；
And hollow space, the valve member are incorporated in the hollow space.
2. pressure fluid according to claim 1 controls equipment, wherein the solenoid valve is inserted into the attached of attachment object
It connects in hole, and the independent containment member for sealing the attachment hole is attached to the side wall of the solenoid valve.
3. pressure fluid according to claim 1 controls equipment, wherein the valve body forms one of the slide core
Region.
4. pressure fluid according to any one of claims 1 to 3 controls equipment, wherein second stationary core is used
Act on the stop part for stopping the spool.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-035965 | 2016-02-26 | ||
| JP2016035965A JP6157666B1 (en) | 2016-02-26 | 2016-02-26 | Pressure fluid control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131165A CN107131165A (en) | 2017-09-05 |
| CN107131165B true CN107131165B (en) | 2019-09-24 |
Family
ID=59272977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611151886.5A Active CN107131165B (en) | 2016-02-26 | 2016-12-14 | Solenoid valve and pressure fluid control equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6157666B1 (en) |
| CN (1) | CN107131165B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691838B (en) * | 2018-07-26 | 2021-08-06 | 江苏军源装备制造有限公司 | Integrated valve |
| JP7308642B2 (en) * | 2019-03-29 | 2023-07-14 | 日立Astemo株式会社 | Flow switching valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4111537A1 (en) * | 1991-04-09 | 1992-10-15 | Rexroth Mannesmann Gmbh | Electrohydraulic pilot controlled four way directional hydraulic valve - ensures closed centre operation by spring action combined with spool ends that locate with stop shoulders contacting bushes |
| CN2219979Y (en) * | 1994-09-29 | 1996-02-14 | 水利部能源部地质勘探机电研究所 | Direct-acting electromagnetic air valve |
| CN1272600A (en) * | 2000-05-12 | 2000-11-08 | 西南交通大学 | High-speed numerical control proportion valve |
| JP2001248753A (en) * | 2000-03-01 | 2001-09-14 | Nok Corp | Solenoid valve |
| CN1995789A (en) * | 2006-01-06 | 2007-07-11 | 株式会社电装 | Solenoid valve |
| CN202140359U (en) * | 2011-06-15 | 2012-02-08 | 毛孟其 | Electromagnetic flow reversing valve |
| CN103511709A (en) * | 2012-06-25 | 2014-01-15 | 株式会社捷太格特 | Solenoid valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56151563U (en) * | 1980-04-11 | 1981-11-13 | ||
| JPH01247877A (en) * | 1988-03-30 | 1989-10-03 | Aisin Seiki Co Ltd | Electromagnetic pressure control valve |
| JP2008032175A (en) * | 2006-07-31 | 2008-02-14 | Shin Caterpillar Mitsubishi Ltd | Fluid-pressure circuit |
-
2016
- 2016-02-26 JP JP2016035965A patent/JP6157666B1/en not_active Expired - Fee Related
- 2016-12-14 CN CN201611151886.5A patent/CN107131165B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4111537A1 (en) * | 1991-04-09 | 1992-10-15 | Rexroth Mannesmann Gmbh | Electrohydraulic pilot controlled four way directional hydraulic valve - ensures closed centre operation by spring action combined with spool ends that locate with stop shoulders contacting bushes |
| CN2219979Y (en) * | 1994-09-29 | 1996-02-14 | 水利部能源部地质勘探机电研究所 | Direct-acting electromagnetic air valve |
| JP2001248753A (en) * | 2000-03-01 | 2001-09-14 | Nok Corp | Solenoid valve |
| CN1272600A (en) * | 2000-05-12 | 2000-11-08 | 西南交通大学 | High-speed numerical control proportion valve |
| CN1995789A (en) * | 2006-01-06 | 2007-07-11 | 株式会社电装 | Solenoid valve |
| CN202140359U (en) * | 2011-06-15 | 2012-02-08 | 毛孟其 | Electromagnetic flow reversing valve |
| CN103511709A (en) * | 2012-06-25 | 2014-01-15 | 株式会社捷太格特 | Solenoid valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107131165A (en) | 2017-09-05 |
| JP6157666B1 (en) | 2017-07-05 |
| JP2017150643A (en) | 2017-08-31 |
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Effective date of registration: 20220110 Address after: Ibaraki Patentee after: Hitachi astemo Co.,Ltd. Address before: Tokyo, Japan Patentee before: KEIHIN Corp. |
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