WO2016076188A1 - ソレノイドバルブ装置 - Google Patents
ソレノイドバルブ装置 Download PDFInfo
- Publication number
- WO2016076188A1 WO2016076188A1 PCT/JP2015/081139 JP2015081139W WO2016076188A1 WO 2016076188 A1 WO2016076188 A1 WO 2016076188A1 JP 2015081139 W JP2015081139 W JP 2015081139W WO 2016076188 A1 WO2016076188 A1 WO 2016076188A1
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- WO
- WIPO (PCT)
- Prior art keywords
- solenoid
- solenoid valve
- armature
- sleeve
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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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
- F16K31/0613—Sliding valves with cylindrical slides
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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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
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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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated 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
- F16K31/02—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/128—Encapsulating, encasing or sealing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
Definitions
- the present invention relates to a solenoid valve device, and more particularly to a solenoid valve device used for hydraulic control of a hydraulic circuit.
- a solenoid having a valve portion having a spool housed in a sleeve, an armature that drives the spool in the axial direction, and a solenoid case that houses a solenoid molded body covered with resin. Is provided between a pressure source of a pump or an accumulator and a load, and a control oil whose pressure and flow rate are adjusted by driving a spool is known.
- This solenoid valve device can move the armature quickly, but since the distance between the space in which the armature is accommodated and the outside is short, fluid enters and exits from the outside via the breathing hole when the armature is driven. However, there is a problem that the contaminant enters the space accommodated in the armature. In view of this, there has been proposed a structure in which a breathing path communicating with a space in which an armature is accommodated is provided in the solenoid case, and the breathing path is formed long to make it difficult for contaminants to enter the space in which the armature is accommodated. (For example, see Patent Document 1)
- the solenoid valve body is attached to the mounting hole of the valve body so that the valve body and the solenoid case of the solenoid valve body are in contact, and the breathing hole is directly exposed to the outside. It is structured so as to increase the distance between the space in which the armature is accommodated and the outside. When such a structure is adopted, it is possible to reduce the entry of contamination into the space in which the armature is accommodated by forming a long breathing path.
- the solenoid valve device has a solenoid valve body in the mounting hole of the valve body.
- the present invention has been made paying attention to such a problem, and an object of the present invention is to provide a solenoid valve device that can move the armature quickly and can more reliably suppress the entry of contamination.
- the solenoid valve device of the present invention provides: A spool, a sleeve in which the spool is axially movable, a valve portion movable by the spool, an armature for moving the spool, and a solenoid portion disposed on the outer periphery of the armature.
- a solenoid valve body comprising: a solenoid molded body disposed; and a solenoid case that houses the armature and the solenoid molded body; A valve body having a mounting hole into which the sleeve of the solenoid valve body is inserted; A solenoid valve device comprising: The solenoid valve body is A breathing hole that penetrates the sleeve in the radial direction and communicates the space formed between the armature and the spool to the outside when at least the armature is in a predetermined region, on the solenoid portion side of the sleeve.
- the solenoid valve main body is provided with an annular sealing means interposed around the sleeve in a mode in which a passage between the breathing hole and the first opening of the solenoid valve main body is secured and the passage between the breathing hole and the outside is blocked. And the valve body are fixed. According to this feature, since the first opening and the breathing hole are sealed to the outside by the annular sealing means, the space formed between the armature and the spool is communicated with the breathing path via the breathing hole.
- the fluid in the space is surely moved to the outside through the breathing path and the second opening, and the resistance by the fluid is small and the armature can be moved quickly.
- the annular sealing means so as to surround the sleeve, not only can the contact pressure per unit area between the solenoid valve body and the valve body of the annular sealing means be maintained at a high level, but also a high restoring force can be obtained. Even if vibration occurs due to movement of the armature, etc., there is almost no possibility of a gap between the solenoid valve main body and the valve body, and a space in which a fluid including contamination is formed between the armature and the spool. Can be prevented from entering.
- the annular sealing means is an annular body having an inner diameter larger than an outer diameter of the sleeve and an inner diameter larger than an insertion hole of the valve body. According to this feature, a space having a diameter larger than the insertion hole of the valve body can be secured on the annular sealing means, the sleeve, and the wall surface of the valve body, and this space increases the flow space of the fluid, and the contamination valve body. Prevent entry into the body.
- the shape of the annular sealing means is an annular shape that is continuous in the circumferential direction. According to this feature, the force generated by the vibration of the solenoid valve main body can be received evenly distributed in the circumferential direction, and the resilience is excellent.
- the annular sealing means is an elastic sealing member. According to this feature, the sealing means can be surely sealed by the elastic force of the elastic sealing member, and is hardly affected by vibration or the like by the elastic restoring force.
- the annular sealing means is a convex portion that protrudes from the end surface on the valve portion side of the solenoid case and contacts the outer surface of the valve body. According to this feature, since the annular sealing means is a convex portion provided on the end face of the solenoid case, the structure is simple, and the sealing structure can be configured only by attaching the solenoid valve body to the valve body. It can be done and there are few operations such as positioning, and it is excellent in assembling.
- the breathing hole is provided at a position where at least a part thereof overlaps the annular sealing means in the axial direction. According to this feature, since at least a part of the breathing hole faces the annular sealing means, the buffer function exhibited by the sealed space can be effectively exhibited during breathing.
- FIG. 1 is a perspective view illustrating a solenoid valve main body in Embodiment 1.
- FIG. 1 is a cross-sectional view of a solenoid valve device taken along line AA in Embodiment 1.
- FIG. It is a perspective view which shows the sleeve and solenoid case which comprise the solenoid valve main body of Example 1.
- FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the respiratory path of the solenoid valve apparatus of Example 1, (a) is a front view which cuts and shows a solenoid case and a valve body, (b) is a top view which cuts and shows a solenoid case and a valve body.
- (C) is a sectional view taken along line BB
- (d) is a sectional view taken along line CC. It is a figure explaining the respiratory path of the solenoid valve apparatus of Example 2, and is a figure which shows the front view shown by notching a solenoid case and a valve body.
- FIG. 2 the left side of FIG. 2 is the bottom (lower) of the solenoid valve body and the right side of the paper is the head (upper).
- the solenoid valve main body 3 is a spool type solenoid valve, and is used for an apparatus controlled by hydraulic pressure such as an automatic transmission of a vehicle. As shown in FIGS. 2 and 4, the solenoid valve main body 3 incorporated in the valve body 2 is called a solenoid valve device 1.
- the solenoid valve body 3 is configured such that a valve portion 5 that adjusts the flow rate of fluid as a valve is integrally attached to a solenoid portion (linear solenoid) 10 as an electromagnetic drive portion. Details of the attachment of the valve unit 5 will be described later.
- the valve unit 5 includes a sleeve 6 provided with an opening such as an input port 6a (FIG. 1) connected to a flow path (not shown) provided in the valve body 2 on the outer periphery and an output port (not shown), and the sleeve 6
- a spool 7 having a plurality of lands 7a housed in a liquid-tight manner in the through-hole 6b (FIG. 3), a coiled spring 8 for urging the spool 7 downward in the axial direction, and a retainer 9 for holding the spring 8 has been. Since this configuration is well known as a spool valve, a detailed description thereof will be omitted.
- the sleeve 6, the spool 7, and the retainer 9 are made of a material such as aluminum, iron, stainless steel, or resin.
- the end portion of the sleeve 6 is formed in a stadium shape including a pair of straight lines and a pair of arcs when viewed from the axial direction, and is formed along both sides of the cylinder along the axial direction.
- the axial cut surfaces 6f and 6f, the radial cut surfaces 6g and 6g formed along the radial direction, and the slit 6d formed in the circumferential direction are formed at locations away from the end surface of the end portion where the axial cut surface 6f is formed. ing.
- the collar 6c is formed at the end
- the arc-shaped engagement surface 6e is formed on the inner diameter side of the slit 6d
- the shaft cut surface 6f has a substantially H-shaped surface.
- a breathing hole 6h penetrating in the radial direction is formed in the shaft cut surface 6f, and the breathing hole 6h communicates with the through hole 6b.
- the lower end portion of the spool 7 has a small-diameter protruding portion 7 b that protrudes into the through hole of the center post 33, is provided on the spring 8 side of the protruding portion 7 b, and abuts on the upper end surface of the center post 33
- a notch 7d extending in the radial direction is formed on the outer periphery of the shoulder 7c.
- the solenoid unit 10 mainly includes a solenoid case 11, a solenoid molded body 12 accommodated in the solenoid case 11, a movable part 30 accommodated in the solenoid molded body 12, and an end plate 36 fixed to the solenoid case 11 by caulking. It is configured.
- the solenoid case 11 has a cup shape in which a pipe-shaped cylindrical portion 11b is connected to a disk-shaped plate portion 11a.
- the disc-shaped plate portion 11a is formed with a stadium-shaped opening 11d (first opening, engagement hole) including a linear portion 11e and an arc portion 11f whose outer shape is slightly larger than the end of the sleeve 6 at the center.
- a notch 11g into which the connector part 16 is inserted is formed at the end of the cylindrical part 11b.
- the solenoid molded body 12 is formed by integrally molding a coil 13 and a lower plate 14 with a resin 15, and the control voltage is applied from the connector of the connector portion 16 that extends to the outside of the solenoid case 11. Is to be supplied.
- the coil 13 generates a magnetic field corresponding to the control voltage, and generates an axial driving force (magnetic attractive force) in the armature 34 by this magnetic field. With the driving force, the spool 7 is moved in the axial direction against the biasing force of the spring 8 through the armature 34 and the rod 35.
- the movable portion 30 is provided on the inner peripheral side of the solenoid molded body 12, and an annular side ring 31, a ring-shaped spacer 32, and a center post 33 in which a flange extending in the radial direction on the bottom side is formed in order from the bottom side.
- the armature 34 is disposed on the inner periphery of the side ring 31 so as to be movable in the axial direction
- the rod 35 is disposed on the inner periphery of the center post 33 so as to be movable in the axial direction.
- the armature 34 and the rod 35 are movable together. Note that the armature 34 may directly abut against the spool 7 (in this case, the rod 35 is unnecessary).
- the retainer 9 is caulked and fixed to the sleeve 6, and then the valve portion 5 is assembled by inserting the spring 8 and the spool 7 into the sleeve 6.
- the collar 6c of the sleeve 6 is inserted into the opening 11d of the solenoid case 11, and the sleeve 6 is rotated 90 degrees around the axis at the position where the slit 6d corresponds to the opening 11d, whereby the straight portion 11e of the opening 11d is formed in the slit 6d.
- the sleeve 6 and the solenoid case 11 are prevented from coming off in a state of being sandwiched (the state shown in FIG. 1).
- the outer diameter of the engaging surface 6e formed by the inner circumferential surface of the slit 6d and the distance between both straight portions 11e, 11e of the opening 11d are substantially equal. In the state shown in FIG. 1, both straight portions 11e, 11e The inner surface and the engaging surface 6e are partially in contact.
- the solenoid molded body 12 is inserted into the solenoid case 11, the substantially stadium-shaped recess 12a (FIG. 4 (d)) is fitted to the stadium-shaped flange 6c of the cross section of the sleeve 6, and the upper surface of the lower plate 14 is connected to the collar 6c. It contacts the lower surface of Next, when the movable portion 30 is inserted into the solenoid molded body 12, the shoulder portion of the center post 33 comes into contact with the lower surface on the inner peripheral side of the lower plate 14, and the upper end surface of the lower plate 14 is below the shoulder portion 7c of the spool 7. Abutting against the end face, the spool 7 is slightly moved in the axial direction against the urging force of the spring 8. Finally, the solenoid valve body 3 is assembled by caulking and fixing the end plate 36 to the bottom of the solenoid case 11. In this state (FIG. 2), the spool 7 is urged downward by the spring 8.
- the solenoid valve device 1 is assembled by mounting the valve portion 5 of the solenoid valve body 3 in the mounting hole 2 a provided in the valve body 2.
- An O-ring 40 annular sealing means, elastic sealing member
- the O-ring 40 is sandwiched between the valve body 2 and the solenoid case 11, whereby an annular space B1 formed around the sleeve 6 (a part of the space B described later) is hermetically sealed.
- a method of press-fitting and fixing to the mounting hole 2 a of the valve body 2 (not shown) and a method of caulking and fixing a part of the valve body 2 to the sleeve 7 can be mentioned.
- the spool 7 When the magnetic attraction force by the coil 13 is relatively weakened, the spool 7 is moved to the solenoid portion 10 side by the biasing force of the spring 8, and the shoulder portion 7 c of the spool 7 comes into contact with the upper end surface of the center post 33 and the spool 7. The movement of the armature 34 and the rod 35 are further moved to the end plate 36 side, and a gap is formed between the upper end of the rod 35 and the lower end of the protruding portion 7b of the spool 7 (shown in FIG. 2). Status.).
- the breathing hole 6h communicates with the space A in which the armature 34 and the rod 35 are accommodated via a notch 7d formed in the spool 7, and when the spool 7 is moved to the solenoid unit 10 side ( Even when not energized, the space A and the breathing hole 6h are connected so as to communicate with each other.
- the breathing hole 6h formed in the sleeve 6 includes the upper surface of the solenoid molded body 10, the side surface of the opening 11d of the solenoid case 11, the outer periphery of the sleeve 6, the upper surface of the solenoid case 11, the outer surface of the valve body 2, and the O It communicates with a space B surrounded by the inner peripheral surface of the ring 40.
- the space B1 is a part of the space B and is a space surrounded by the outer periphery of the sleeve 6, the upper surface of the solenoid case 11, the outer surface of the valve body 2, and the inner peripheral surface of the O-ring 40.
- the solenoid molded body 12 has convex portions 15a and 15b in which a resin 15 protrudes in a substantially C shape on the upper end side, and a substantially stadium-shaped concave portion 12a formed on the inner side.
- the radial grooves 12b and 12c formed in the left-right direction in FIG. 4D are formed (the lower plate 14 is exposed at the positions where the recesses 12a and the radial grooves 12b and 12c are formed).
- axial grooves 12d and 12e are formed on the side surface of the solenoid molded body 12 and the side surface of the lower plate 14 so as to communicate with the radial grooves 12b and 12c and extend rearward in the axial direction.
- a circumferential groove 12f is formed that circulates the outer periphery of the body 12 along the circumferential direction and communicates with the opening 11h (second opening).
- the opening 11h is a gap formed between the notched portion 11g of the solenoid case 11 into which the connector portion 16 is fitted and the solenoid molded body 11, and this gap communicates with the outside.
- Axial grooves 31c and 31d extending along the axis are formed.
- a chamfered portion 12g is formed at the outer peripheral corner portion of the end surface on the end plate 36 side of the solenoid molded body 12, and thereby, a circumferential groove formed so as to circulate around the outer periphery between the side ring 31 and the outer peripheral corner portion. 12h is formed.
- the circumferential grooves 12h communicate with the axial grooves 31c and 31d and communicate with the opening 11h of the solenoid case 11 at a position shifted by about 90 °. That is, the space C on the end plate 36 side of the armature 34 (the space in the central opening of the side ring 31) is the radial grooves 31a and 31b, the axial grooves 31c and 31d, and the circumferential groove 12h formed in the side ring 31.
- the solenoid case 11 communicates with the outside of the solenoid valve body 3 through the opening 11h.
- the notches 7d, the breathing holes 6h, the radial grooves 12b and 12c, the axial grooves 12d and 12e, and the circumferential grooves 12f are used as a fluid path for communicating the space A in which the armature 34 and the rod 35 are accommodated with the opening 11h. It forms the main path through which most passes.
- the respiratory path is a path from the space A to the opening 11h, and the respiratory path is a path (groove) in the solenoid case 11 among the respiratory paths.
- a space B1 (a part of the space B) formed between the inner periphery of the O-ring 40 and the outer periphery of the sleeve 6 and formed by branching from the main path in the radial direction is formed. ing.
- the notch 7d formed in the spool 7 communicates with the breathing opening 6h, and the space A communicates with the opening 11h via the breathing path.
- the notch 7d has an inner diameter slightly above the breathing port 6h of the sleeve 6 from the lowest position (non-energized) of the spool 7 position. It is an area up to a small position. It should be noted that the spool 7 is in this region when the solenoid valve body 3 is in a normal use state.
- the armature 34 When the control power is supplied from the non-energized state, the armature 34 is sucked by the center post 33 and moved so as to approach the valve unit 5, so that the armature 34 moves the spool 7 toward the retainer 9, The fluid in the space A is quickly discharged to the outside, and the responsiveness of the solenoid valve main body 3 can be improved. Further, when the power supplied to the coil 13 is stopped or reduced and the armature 34 moves in a direction away from the valve unit 5, the fluid can be quickly flowed into the space A from the outside via the breathing path. Also in this case, the responsiveness of the solenoid valve body 3 can be improved.
- the two axial grooves 12d and 12e formed on the outer periphery of the solenoid molded body 12 are formed and installed so that their respective center angles are shifted by 90 ° with respect to the opening 11h of the solenoid case 11, and the circumferential grooves 12f are formed.
- the breathing path from the space A to the opening 11h is ensured to be as long and complex as possible.
- the radial grooves 31a and 31b and the axial grooves 31c and 31d formed in the side ring 31 are also formed and installed so that their center angles are shifted from each other by 90 ° with respect to the opening 11h.
- the notch 7d and the breathing hole 6h preferably have a channel cross-sectional area of about 0.2 to 2.1 mm 2, for example.
- Such a flow passage cross-sectional area improves the responsiveness of the solenoid valve main body 3 as described above, and the flow resistance when the fluid flows in and out due to the small flow passage cross-sectional area moves the armature 34.
- a space B1 having a diameter larger than that of the mounting hole 2a of the valve body 2 can be secured at a location surrounded by the O-ring 40, the sleeve 7 and the valve body 2, and this space B1 increases the fluid circulation space. Prevents contamination from entering the valve body.
- the breathing hole 6h faces the space B1 formed in an annular shape in a direction intersecting the flow direction of the fluid flowing from the breathing hole 6h, which is the main path, to the radial groove 12b.
- the direction of the flow of the fluid to be changed changes in the vicinity of the breathing hole 6h, but since there is a space B1 formed in an annular shape at that position, the contamination is easily captured in the space formed in the annular shape. It is easily held in the space B1 by static electricity or the like.
- annularly formed space B1 is provided in the vicinity of the breathing hole 6h, when the armature 34 moves, a fluid is transiently transferred to and from the space A (initial movement of the armature 34). It functions as a buffer to be supplied, can operate the armature 34 quickly, and can suppress the vibration of the fluid. This effect is more pronounced when the fluid is a compressible gas.
- the end of the sleeve 6 and the opening 11d of the solenoid case 11 are formed into a stadium shape, the end of the sleeve 6 is inserted into the opening 11d, and the sleeve 6 is rotated 90 degrees around the axis at a position corresponding to the opening 11d.
- the sleeve 6 and the solenoid case 11 are prevented from being detached from each other in a state where the straight portion 11e of the opening 11d is sandwiched between the slits 6d, so that the sleeve 6 can be attached to the solenoid case 11 with a simple configuration. .
- the breathing hole 6h is provided in the shaft cut surface 6f, that is, in the short diameter portion of the end portion of the sleeve 6, the engagement allowance of the engaging surface 6e can be sufficiently increased without the breathing hole 6h interfering with the engaging surface 6e.
- the axial cut surface 6f is a straight portion, it is easy to process the breathing hole 6h and can be arranged with high accuracy. Further, a long distance from the breathing hole 6h to the outside in the radial direction, that is, a wide space ( B1) can be secured.
- the opening 11h communicating with the outside is formed by the connector portion 16 and the notch portion 11g, it is not necessary to provide another opening for breathing in the solenoid portion 3.
- the opening 11 d and the breathing hole 6 h are sealed with respect to the outside through the gap between the outer surface of the valve body 2 and the upper surface of the solenoid case 11 by the O-ring 40, they are formed between the armature 34 and the spool 6.
- the space A is communicated with the breathing passages 12b, 12c, 12d, 12e, and 12f through the breathing hole 6h, and when the armature 34 moves, the fluid in the space A is exposed to the outside through the breathing route and the opening 11h. Therefore, the armature 34 can be moved quickly.
- the O-ring 40 is disposed so as to surround the sleeve 6, even if the contact pressure per unit area becomes higher than that in the case of surface contact and the contact pressure per unit area increases, and vibration occurs due to the movement of the armature 34, the solenoid case 11. There is almost no possibility of a gap between the valve body 2 and the valve body 2, and it is possible to prevent the fluid including contamination from entering the space A formed between the armature 34 and the spool 7.
- the O-ring 40 Since the O-ring 40 has a shape having an inner diameter larger than the outer diameter of the sleeve 7, the O-ring 40 seals between the solenoid case 11 and the valve body 2 at a position separated from the sleeve 7 in the radial direction. Since the force generated by the vibration of the valve body 3 is received at a position distant from the sleeve 6 in the radial direction, a gap is hardly generated between the solenoid case 11 and the valve body 2.
- the O-ring 40 has an annular shape that is continuous in the circumferential direction, the force generated by the vibration of the solenoid valve body 3 can be evenly distributed. Further, since the O-ring 40 is used, it can be surely sealed.
- the breathing hole 6h is a small-diameter portion at the end of the sleeve 6, and is provided at a position at least partially overlapping the opening 11d in the axial direction, so that the solenoid valve main body 3 does not increase in length in the axial direction. Can be configured.
- a solenoid valve device according to the second embodiment will be described with reference to FIG.
- an annular convex portion 11k (in the circumferential direction) that protrudes from the valve portion side end surface of the solenoid case 11 and contacts the outer surface of the valve body 2 is provided.
- An annular sealing means) is different. The description of the same configuration as that of the first embodiment is omitted.
- the structure is simple.
- the sealing structure can be configured only by attaching the solenoid valve main body 3 to the valve body 2, and there is less work for positioning and the like, and the assemblability is excellent compared to the case where other members such as the O-ring 40 are used.
- the inner diameters of the O-ring 40 and the convex portion 11k are both larger than the outer diameter of the sleeve 6, but both diameters may be the same.
- the solenoid valve is fixed with the O-ring 40 fixed to the outer periphery of the sleeve 6. Since the main body 3 may be assembled to the valve body 2, the assemblability is excellent.
- the shape is not limited to the groove but may be a tube, for example.
- the passage provided in the solenoid case has been described as a combination of the radial direction, the axial direction, and the circumferential direction as the extending direction, but it may be long and complicated, for example, extending in the spiral direction. You may combine what to do.
- the breathing hole 6h and the radial groove 12b are arranged at the same angle as viewed in the circumferential direction.
- the breathing hole 6h may be shifted 90 ° in the circumferential direction and disposed above or below in FIG. 4A.
- the fluid needs to pass about 1/4 of the annular space B1, so that the breathing path can be further lengthened.
- the grooves 12b and 12c are arranged at an equal angle with respect to the breathing hole 6h, the fluid can be allowed to flow almost evenly in both the grooves 12b and 12c.
- the O-ring is used in the description for the member that achieves the sealing structure, not only the O-ring but also an elastic sealing member such as a square ring or other sealing members may be used.
- Solenoid valve apparatus 1 Solenoid valve apparatus 2 Valve body 2a Mounting hole 3 Solenoid valve main body 5 Valve part 6 Sleeve 6d Slit 6h Breathing hole 7 Spool 7d Notch 10 Solenoid part 11 Solenoid case 11d Opening (1st opening) 11h opening (second opening) 11k convex part (annular sealing means) 12 solenoid molded body 12b, 12c radial groove (breathing path) 12d, 12e Axial groove (breathing path) 12f Circumferential groove (breathing path) 34 Armature 40 O-ring (annular sealing means, elastic sealing member) A space
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
スプールと、内部に前記スプールが軸方向に移動可能に配置されるスリーブと、前記スプールによって移動可能なバルブ部と、前記スプールを移動させるアーマチャと、前記アーマチャの外周に配置され内部にソレノイド部が配されるソレノイド成形体と、前記アーマチャ及び前記ソレノイド成形体を収容するソレノイドケースと、を具備するソレノイドバルブ本体と、
前記ソレノイドバルブ本体の前記スリーブが挿入される取付孔を有するバルブボディと、
を備えたソレノイドバルブ装置であって、
前記ソレノイドバルブ本体は、
前記スリーブの前記ソレノイド部側には、当該スリーブを径方向に貫通し、少なくとも前記アーマチャが所定の領域にあるときに前記アーマチャと前記スプールとの間に形成される空間を外部に連通させる呼吸孔と、
前記バルブ部側に臨んで外部に開放された第1開口と、
外部に開放された第2開口と、
一端が前記第1開口に連通されるとともに他端が第2開口に連通される前記ソレノイドケース内の呼吸路と、を備えるとともに、
前記ソレノイドバルブ本体の呼吸孔と前記第1開口との通路を確保するとともに、該呼吸孔と外部との通路を遮断する態様で、前記スリーブの周囲に環状密封手段を介在させて前記ソレノイドバルブ本体と前記バルブボディとを固定した
ことを特徴としている。
この特徴によれば、環状密封手段により第1開口及び呼吸孔が外部に対して密封されているため、アーマチャとスプールとの間に形成される空間が呼吸孔を介して呼吸路に連通されることとなり、アーマチャが移動する際に当該空間の流体は呼吸路及び第2開口を介して外部に確実に移動させられ、流体による抵抗は小さくアーマチャを迅速に移動させることができる。そして環状密封手段がスリーブを取り囲むように配置されていることにより、この環状密封手段のソレノイドバルブ本体とバルブボディとの単位面積当りの接触圧を高い状態に維持できるだけでなく、高い復元力が得られることになり、アーマチャの移動などによって振動が生じても、ソレノイドバルブ本体とバルブボディとの間に隙間が生じる虞はほとんど無く、コンタミを含む流体がアーマチャとスプールとの間に形成される空間に侵入することを抑制することができる。
この特徴によれば、環状密封手段、スリーブ、そしてバルブボディの壁面にバルブボディの挿入穴よりも径の大きな空間を確保できることになり、この空間が流体の流通空間を増加させ、コンタミのバルブボディ本体への侵入を防止する。
この特徴によれば、ソレノイドバルブ本体の振動等により生じる力を円周方向に均等に分散させて受けることができ、復元性に優れる。
この特徴によれば、密封手段が弾性密封部材の持つ弾性力により確実な密封が可能なばかりか、弾性復元力により振動などの影響を受け難い。
この特徴によれば、環状密封手段がソレノイドケースのバルブ部側端面に設けた凸部であるため、構造が簡単であり、かつソレノイドバルブ本体をバルブボディに取り付けるのみで密封構造を構成することができ、位置決め等の作業が少なく組立性に優れる。
この特徴によれば、呼吸孔の少なくとも一部が環状密封手段に臨むため、呼吸の際に密封空間が奏するバッファ機能を効果的に発揮させることができる。
2 バルブボディ
2a 取付孔
3 ソレノイドバルブ本体
5 バルブ部
6 スリーブ
6d スリット
6h 呼吸孔
7 スプール
7d 切り欠き
10 ソレノイド部
11 ソレノイドケース
11d 開口(第1開口)
11h 開口(第2開口)
11k 凸部(環状密封手段)
12 ソレノイド成形体
12b、12c 径方向溝(呼吸路)
12d、12e 軸方向溝(呼吸路)
12f 周方向溝(呼吸路)
34 アーマチャ
40 Oリング(環状密封手段、弾性密封部材)
A 空間
Claims (6)
- スプールと、内部に前記スプールが軸方向に移動可能に配置されるスリーブと、前記スプールによって移動可能なバルブ部と、前記スプールを移動させるアーマチャと、前記アーマチャの外周に配置され内部にソレノイド部が配されるソレノイド成形体と、前記アーマチャ及び前記ソレノイド成形体を収容するソレノイドケースと、を具備するソレノイドバルブ本体と、
前記ソレノイドバルブ本体の前記スリーブが挿入される取付孔を有するバルブボディと、
を備えたソレノイドバルブ装置であって、
前記ソレノイドバルブ本体は、
前記スリーブの前記ソレノイド部側には、当該スリーブを径方向に貫通し、少なくとも前記アーマチャが所定の領域にあるときに前記アーマチャと前記スプールとの間に形成される空間を外部に連通させる呼吸孔と、
前記バルブ部側に臨んで外部に開放された第1開口と、
外部に開放された第2開口と、
一端が前記第1開口に連通されるとともに他端が第2開口に連通される前記ソレノイドケース内の呼吸路と、を備えるとともに、
前記ソレノイドバルブ本体の呼吸孔と前記第1開口との通路を確保するとともに、該呼吸孔と外部との通路を遮断する態様で、前記スリーブの周囲に環状密封手段を介在させて前記ソレノイドバルブ本体と前記バルブボディとを固定した
ことを特徴とするソレノイドバルブ装置。 - 前記環状密封手段は、前記スリーブの外径よりも大きな内径を有するとともに、前記バルブボディの挿入穴よりも大きな内径を有する環状体であることを特徴とする請求項1に記載のソレノイドバルブ装置。
- 前記環状密封手段の形状は、周方向に連続する円環状であることを特徴とする請求項1又は2に記載のソレノイドバルブ装置。
- 前記環状密封手段は、弾性密封部材であることを特徴とする請求項1乃至3のいずれかに記載のソレノイドバルブ装置。
- 前記環状密封手段は、前記ソレノイドケースのバルブ部側端面から突出され、前記バルブボディの外表面に当接される凸部であることを特徴とする請求項1乃至3のいずれかに記載のソレノイドバルブ装置。
- 前記呼吸孔は、少なくともその一部が軸方向において前記環状密封手段と重なる位置に設けられることを特徴とする請求項1乃至5のいずれかに記載のソレノイドバルブ装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15859575.1A EP3220027B1 (en) | 2014-11-13 | 2015-11-05 | Solenoid valve device |
| JP2016559002A JP6505745B2 (ja) | 2014-11-13 | 2015-11-05 | ソレノイドバルブ装置 |
| US15/522,070 US20170314700A1 (en) | 2014-11-13 | 2015-11-05 | Solenoid valve device |
| CN201580058424.6A CN107076330A (zh) | 2014-11-13 | 2015-11-05 | 电磁阀装置 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014231062 | 2014-11-13 | ||
| JP2014-231062 | 2014-11-13 |
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| WO2016076188A1 true WO2016076188A1 (ja) | 2016-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2015/081139 Ceased WO2016076188A1 (ja) | 2014-11-13 | 2015-11-05 | ソレノイドバルブ装置 |
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| Country | Link |
|---|---|
| US (1) | US20170314700A1 (ja) |
| EP (1) | EP3220027B1 (ja) |
| JP (1) | JP6505745B2 (ja) |
| CN (1) | CN107076330A (ja) |
| WO (1) | WO2016076188A1 (ja) |
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| JP7490323B2 (ja) | 2019-09-24 | 2024-05-27 | イーグル工業株式会社 | スプールバルブ |
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| JP7152227B2 (ja) | 2018-09-13 | 2022-10-12 | イーグル工業株式会社 | ソレノイドバルブ |
| JP2021009939A (ja) * | 2019-07-02 | 2021-01-28 | 株式会社デンソー | ソレノイド |
| JP2021145099A (ja) * | 2020-03-13 | 2021-09-24 | 株式会社不二越 | 電磁アクチュエータ |
| JP7376794B2 (ja) | 2020-03-13 | 2023-11-09 | 株式会社不二越 | 電磁アクチュエータ |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6505745B2 (ja) | 2019-04-24 |
| JPWO2016076188A1 (ja) | 2017-08-24 |
| EP3220027A4 (en) | 2018-07-25 |
| US20170314700A1 (en) | 2017-11-02 |
| EP3220027B1 (en) | 2019-07-17 |
| EP3220027A1 (en) | 2017-09-20 |
| CN107076330A (zh) | 2017-08-18 |
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