WO2019017251A1 - Électrovanne - Google Patents

Électrovanne Download PDF

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Publication number
WO2019017251A1
WO2019017251A1 PCT/JP2018/026132 JP2018026132W WO2019017251A1 WO 2019017251 A1 WO2019017251 A1 WO 2019017251A1 JP 2018026132 W JP2018026132 W JP 2018026132W WO 2019017251 A1 WO2019017251 A1 WO 2019017251A1
Authority
WO
WIPO (PCT)
Prior art keywords
spool
solenoid valve
stator
holder
solenoid
Prior art date
Application number
PCT/JP2018/026132
Other languages
English (en)
Japanese (ja)
Inventor
直己 西村
清水　聡
惟寛 川戸
Original Assignee
イーグル工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by イーグル工業株式会社 filed Critical イーグル工業株式会社
Priority to JP2019530985A priority Critical patent/JP7068306B2/ja
Publication of WO2019017251A1 publication Critical patent/WO2019017251A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to a solenoid valve, and more particularly to an immersion type solenoid valve used for fluid pressure control of a fluid pressure circuit.
  • a valve portion having a spool housed in a sleeve, a plunger (movable iron core) for driving the spool in the axial direction, and a solenoid molded body in which a coil is covered with resin.
  • a solenoid unit having a solenoid case for accommodating the control oil, which is disposed between the pressure source and the load side of the pump or accumulator, and controls oil whose pressure or flow rate is adjusted by driving the spool to the load side It can be supplied.
  • the oil immersion type solenoid valve disclosed in Patent Document 1 mainly includes a spool valve portion (valve portion) and a solenoid portion, and the solenoid portion has a plunger having a communication hole penetrating in the axial direction, A cylindrical stator core (housing member) for housing a plunger, a solenoid molded body provided on the outer periphery of the stator core and having a coil, and a yoke (solenoid case) for housing the stator core and the solenoid molded body to form a magnetic circuit doing.
  • the yoke has a two-step stepped tubular structure including a yoke cylindrical portion for housing a solenoid molded body and a ring core cylindrical portion to which the stator core is fitted on the rear side of the yoke cylindrical portion.
  • the bottom portion of the ring is provided with a circular recess, and the inner wall of the ring core cylindrical portion is formed with at least one internal breathing path extending radially so as to communicate with the recess provided in the bottom.
  • an external respiratory path having a breathing hole which is continuous with the internal breathing path of the ring core cylindrical portion and opened to the outside of the yoke is formed.
  • the space formed before and after the plunger housed in the cylindrical stator core is in breathable communication with the outside through the communication hole of the plunger, the internal breathing path and the external breathing path, and Hydraulic control can be performed accurately and quickly by causing the hydraulic fluid to breathe outside the yoke in accordance with the movement of the plunger inside.
  • the present invention has been made in view of such problems, and an object of the present invention is to provide a solenoid valve capable of stably performing hydraulic pressure control.
  • the solenoid valve of the present invention With the spool, A sleeve in which the spool is axially movably disposed; A movable core disposed at one end of the spool and moving the spool; A solenoid molded body disposed on the outer periphery of the movable core; A solenoid case for accommodating the movable core and the solenoid molded body; And a cylinder for accommodating the movable iron core in the inner space,
  • the movable iron core is obtained even when the liquid level in the mounting member is lowered or the liquid level is temporarily inclined. Since it is possible to block the fluid inside the cylinder by the weir provided on the opposite side to the spool of the cylinder, the deterioration of the liquid level inside the cylinder is suppressed to prevent the deterioration of the operation of the movable iron core, and the hydraulic pressure control Can be done stably.
  • a spacer may be provided between the crucible and the movable core to axially separate the crucible and the movable core. According to this, the space between the weir provided on the opposite side to the movable iron core spool and the movable iron core is axially separated by the spacer, so that the inside of the cylinder and the opposite side of the movable iron core spool Since the space can be formed between the two, it is possible to leave the fluid on the opposite side of the movable iron spool in the interior of the cylinder when moving to the opposite side of the movable iron spool.
  • the crucible may be a holder detachably attached to the opening of the cylinder. According to this, since the weir is a holder detachably attached to the opening of the cylinder, the maintainability of the inside of the cylinder can be enhanced.
  • the holder may be characterized in that a fluid passage communicating with the outside of the cylinder is provided at the upper part of the surface facing the cylinder. According to this, since the holder is provided with the fluid passage communicating with the outside of the cylinder at the upper part of the surface facing the cylinder, the liquid level in the mounting member is lowered, or the liquid surface is temporarily inclined. Also, the fluid does not easily flow out of the fluid passage of the holder, and the holder can block the fluid inside the cylinder.
  • the movable iron core may be characterized in that a through hole penetrating in the axial direction is provided on the upper side of the radial center. According to this, by providing the through hole extending in the axial direction on the upper side with respect to the radial center of the movable iron core, even when the liquid level in the mounting member is lowered or the liquid level is temporarily inclined, Since the amount of fluid flowing through the through hole of the movable iron core can be suppressed inside the cylinder, it is possible to suppress a drop in the liquid level inside the cylinder.
  • a positioning means which positions the above-mentioned holder and the above-mentioned cylinder in the peripheral direction. According to this, since the holder and the cylindrical body can be positioned and attached in the circumferential direction so that the fluid passage of the holder is disposed at the upper portion by the positioning means, the fluid inside the cylindrical body can be reliably made by the holder. You can stop it.
  • the sleeve is attached to the cylindrical body, and a rod is disposed in the cylindrical body between the movable iron core and one end side of the spool.
  • the rod may be movable inside the cylinder. According to this, in the inside of the cylinder to which the sleeve is attached, the rod is disposed between the movable core and one end side of the spool, and the spool side of the movable core becomes a space in which the movement of the fluid is suppressed. The fluid on the spool side of the movable iron core in the interior of the cylinder is blocked, and the drop in liquid level in the interior of the cylinder can be suppressed.
  • FIG. 2 is a perspective view showing a structure of a stator in a first embodiment.
  • 5 is a perspective view showing the structure of a holder in Embodiment 1.
  • FIG. It is a partially cutaway cross-sectional view showing the on state of the solenoid valve in which the plunger moves to the annular step side of the stator by energization of the coil. It is a partially cutaway sectional view showing the off state of the solenoid valve in the state where the oil level in the valve housing is lowered.
  • the solenoid valve according to the first embodiment will be described with reference to FIGS. 1 to 6.
  • the left side of the drawing of FIG. 1 will be described as the upper side of the solenoid valve
  • the right side of the drawing of FIG. 1 will be described as the lower side of the solenoid valve.
  • the solenoid valve 1 is a spool type solenoid valve, and is used, for example, in a hydraulically controlled device such as an automatic transmission of a vehicle.
  • the solenoid valve 1 is a so-called oil immersion type (immersion type) solenoid valve which is horizontally mounted on a mounting member such as a valve housing (not shown) and immersed in hydraulic oil L (liquid) in the valve housing.
  • FIG. 1 shows a state in which the oil level L1 is maintained at a predetermined height position where the hydraulic oil L in the valve housing immerses the entire solenoid valve 1, and the meshed portion inside the solenoid valve 1 is , And the hydraulic oil L.
  • the solenoid valve 1 is configured such that a valve unit 2 that adjusts the flow rate of fluid as a valve is integrally attached to the solenoid unit 3 as an electromagnetic drive unit.
  • FIG. 1 shows the off state of the solenoid valve 1 in which the coil 34 of the solenoid molded body 31 is not energized.
  • the valve unit 2 includes a sleeve 21 provided with an opening such as an input port and an output port (not shown) connected to a flow passage provided in a valve housing (not shown) on the outer periphery;
  • a spool 22 having a plurality of lands (not shown) received in a fluid-tight manner through the through holes 21a, a coiled spring (not shown) for urging the spool 22 axially to the left, and a retainer 23 for holding the spring. It is done. Since this configuration is a configuration well known as a spool valve, detailed description will be omitted.
  • the sleeve 21, the spool 22 and the retainer 23 are made of materials such as aluminum, iron, stainless steel, and resin.
  • the diameter of the opening 21 b (opening) formed at the axial left end portion of the sleeve 21 is larger than the diameter of the spool 22, whereby the inner peripheral surface of the opening 21 b and the spool in the inside of the sleeve 21
  • An annular space S ⁇ b> 1 is formed between the outer circumferential surface 22 and the outer circumferential surface 22.
  • a breathing hole 21 c (opening) which is a drain port penetrating in the radial direction on the lower side is formed, and the breathing hole 21 c communicates with the space S1.
  • the solenoid unit 3 includes a cup-shaped solenoid case 30 formed of a magnetic metal material such as iron, a solenoid molded body 31 housed in the solenoid case 30, and a stator 32 disposed inside the solenoid molded body 31. (Tube) and are mainly composed.
  • the solenoid case 30 is formed to have a diameter smaller than that of the first accommodation cylinder 30b at the center in the radial direction on the left side in the axial direction of the first accommodation cylinder 30b and the inside of the first accommodation cylinder 30b. It is comprised by the flanged cylindrical shape comprised from the 2nd accommodating cylinder part 30c in which the axial direction left end part of the cylinder part 32a of the stator 32 mentioned later is inserted. Further, in the inside of the solenoid case 30, the inner circumferential surfaces of the first housing cylindrical portion 30b and the second housing cylindrical portion 30c and the outer peripheral surfaces of the solenoid molded body 31 and the cylindrical portion 32a of the stator 32 extend in the radial direction.
  • the respiratory path 33 is formed by separating.
  • the solenoid molded body 31 is formed by molding the coil 34 with the resin 35, and the control voltage is supplied from the connector of the connector portion 35a extending to the outside from the opening 30d provided on the radial direction lower side of the solenoid case 30. It is supplied to the coil 34.
  • the dimension of the opening 30d of the solenoid case 30 in the axial direction is larger than the dimension of the connector 35a of the solenoid molded body 31 in the axial direction, and the gap with the connector 35a inserted into the opening 30d is
  • a breathing path 33 formed inside the solenoid case 30 communicates with the outside via the.
  • the stator 32 is formed in a cylindrical shape with a flange, and a cylindrical portion 32 a in which an annular recess 32 b is formed by forming a thin wall substantially in the center in the axial direction; And a through hole 32d capable of receiving the plunger 4 (movable iron core) and the rod 5 at the radial center of the cylindrical portion 32a.
  • a cylindrical protrusion 32k (positioning means) is provided at the left end in the axial direction of the cylindrical portion 32a in the axial direction, and a holder 37 (a weir) is attached to the cylindrical end 32h.
  • the weir of the present invention means a wall having a space above it, and in the present embodiment, the disk-like holder 37 is a weir and the upper space is described by taking the groove 37d as an example. . Furthermore, the details of the structure of the holder 37 will be described later.
  • the flange portion 32c is provided with a recess 32j which is recessed leftward in the axial direction on the end surface on the right side in the axial direction, and is fixed in a state where the axial left end portion of the sleeve 21 is inserted. Further, the axial direction right end portion of the cylindrical portion 30 a of the solenoid case 30 is crimped to the flange portion 32 c, and the stator 32 and the holder 37 are axially fixed to the solenoid case 30.
  • the through hole 32d constituting the space S2 in the stator 32 is formed with a small diameter at the center in the radial direction on the right side in the axial direction of the first accommodation portion 32e where the plunger 4 is disposed on the left side in the axial direction
  • the second housing portion 32 f in which the rod 5 is disposed is configured in a stepped cylindrical shape.
  • An annular surface portion 32g extending in the radial direction is formed on the right side in the axial direction of the first accommodation portion 32e, and the annular surface portion 32g is continuous with the inner surface of the second accommodation portion 32f at the inner diameter side.
  • An annular protection member 36 formed of a rubber-like elastic body for protecting the plunger 4 from an impact when the axial right end surface of the plunger 4 axially moving in the first accommodation portion 32e contacts the annular surface portion 32g. Is attached.
  • the plunger 4 is formed in a cylindrical shape, and the outer peripheral surface thereof is guided by the inner peripheral surface of the first accommodation portion 32 e so as to be movable in the axial direction. A slight clearance is provided in the radial direction between the outer peripheral surface of the plunger 4 and the inner peripheral surface of the first accommodation portion 32e, so that the plunger 4 can be smoothly moved in the axial direction. . Further, the plunger 4 is provided with a through hole 4a whose center is shifted from the center in the radial direction, and preferably, the through hole 4a which penetrates in the axial direction above the center in the radial direction.
  • the space S2 in the stator 32 is formed such that the space on the axial left side (the holder 37 side) of the plunger 4 and the space on the axial right side (the annular surface portion 32g side) of the plunger 4 are communicated by the through hole 4a. There is.
  • the rod 5 is disposed substantially coaxially with the plunger 4, that is, on an extension of a radial center, and axially movable inside the second accommodation portion 32f.
  • a slight clearance is provided in the radial direction between the outer peripheral surface of the rod 5 and the inner peripheral surface of the second accommodation portion 32f, so that the rod 5 can be smoothly moved in the axial direction.
  • the plunger 4 and the rod 5 are integrally movable, and the tip of the rod 5 on the axial right side (valve portion 2 side) is the end face 22 a of the spool 22 on the axial left side (solenoid portion 3 side) In contact with The end on the axial right side of the rod 5 and the end face 22 a of the spool 22 may be fixed.
  • the holder 37 is formed in a disk shape having substantially the same diameter as the outer diameter of the cylindrical portion 32 a of the stator 32.
  • a cylindrical convex portion 37 b protruding rightward is provided.
  • the convex portion 37 b is formed to have an outer diameter substantially the same as the inner diameter of the through hole 32 d (first accommodation portion 32 e) of the stator 32, and the convex portion 37 b can be inserted into the through hole 32 d of the stator 32.
  • a cylindrical protrusion 37 c having a diameter smaller than that of the protrusion 37 b and projecting to the right in the axial direction is provided at the radial center of the protrusion 37 b.
  • the holder 37 is provided with a substantially L-shaped groove portion 37d (fluid passage) extending in the radial direction from the radial upper side of the convex portion 37b to the outer peripheral portion of the end face 37a.
  • a bottomed insertion hole 37e (positioning means) is formed on the outer diameter of the cylindrical projection 32k of the stator 32 described above.
  • the end face 37 a of the holder 37 and the opening end face 32 h of the stator 32 abut each other, and the projection 32 k of the stator 32 in the insertion hole 37 e of the holder 37
  • the holder 37 and the stator 32 can be positioned in the circumferential direction such that the groove 37 d of the holder 37 is disposed on the radial upper side by inserting and inserting the connector 37.
  • the groove 37 d of the holder 37 is opened radially upward between the opening end surface 32 h of the stator 32, the space S 2 in the stator 32 passes through the groove 37 d of the holder 37.
  • the protrusion 32k of the stator 32 may be inserted into the groove 37d of the holder 37 to position the holder 37 and the stator 32 in the circumferential direction.
  • a magnetic circuit is formed by the solenoid case 30, the stator 32, and the plunger 4 by energizing the coil 34, and a magnetic force is generated between the annular surface portion 32g of the stator 32 and the plunger 4.
  • the plunger 4 can be moved axially to the right toward the annular surface portion 32 g of the stator 32.
  • the axial right end of the rod 5 pushes the end face 22 a on the left side in the axial direction of the spool 22 by integrally moving the rod 5 to the right in the axial direction using the driving force of the plunger 4.
  • the amount of control fluid flowing from the input port (not shown) of the sleeve 21 to the output port can be changed by moving the shaft 22 to the right in the axial direction against the biasing force of a spring (not shown).
  • the plunger 4 is moved to the first accommodation portion 32 e of the stator 32 (space S2). It can be moved axially inside.
  • the hydraulic oil L filling the inside of the first accommodation portion 32 e of the stator 32 passes through the through hole 4 a provided in the plunger 4 and the space on the axial left side (holder 37 side) of the plunger 4 and the axial direction of the plunger 4 It is moving between the space on the right side (ring surface 32g side).
  • the hydraulic oil L in the first accommodation portion 32e of the stator 32 is moved to the breathing hole 21c of the sleeve 21 and the solenoid case 30.
  • the hydraulic oil L in the moving direction of the plunger 4 can be discharged, and the resistance by the hydraulic oil L can be suppressed.
  • the holder 37 is provided at the tip of the first accommodation portion 32e of the stator 32 opposite to the spool 22 of the plunger 4, that is, the open end surface 32h of the stator 32, the valve housing shown in FIGS.
  • the space 37 in the stator 32 (in particular, the first accommodation portion 32e)
  • the hydraulic oil L can be blocked, so that the deterioration of the oil level in the space S2 in the stator 32 can be suppressed, the deterioration of the operability of the plunger 4 can be prevented, and the hydraulic control can be performed stably.
  • the amount of hydraulic oil flowing out from the space S2 in the stator 32 to the space S1 in the sleeve 21 via the clearance between the inner peripheral surface of the second accommodation portion 32f of the stator 32 and the outer peripheral surface of the rod 5 is small. is there.
  • stator 32 axially extends to a substantially bottom portion of the solenoid case 30 so as to accommodate the plunger 4, and in the space S2 in the stator 32, the axial right side of the plunger 4 in the first accommodation portion 32 e (annular surface portion 32g) is substantially closed by the rod 5 disposed in the annular surface portion 32g of the stator 32 and the second accommodation portion 32f, the space in the axial direction right of the plunger 4 in the first accommodation portion 32e of the stator 32
  • the hydraulic oil L is blocked, and the decrease in the oil level of the hydraulic oil L in the space S2 in the stator 32 can be further suppressed.
  • the oil level of the hydraulic oil L in the valve housing decreases (for example, in the case of the oil level L2)
  • the hydraulic oil L in the space S2 in the stator 32 flows from the opening end face 32h of the stator 32 through the breathing path 33 in the solenoid case 30 to the outside from the opening 30d, and the oil in the hydraulic oil L in the space S2 in the stator 32 Due to the reduction of the surface, the operability of the plunger 4 is deteriorated and the hydraulic control becomes unstable.
  • the holder 37 provided on the opening end surface 32h of the stator 32 is provided with a groove portion 37d extending in the radial direction upward in the radial direction, thereby, for example, breathing of the sleeve 21 when the oil level of the hydraulic oil L in the valve housing decreases.
  • the spool 22 of the plunger 4 is discharged by discharging the air to the outside of the stator 32 through the groove 37d of the holder 37. Since the air which has turned around to the opposite side (holder 37 side) can be prevented from staying in the space S2 in the stator 32, the driving of the plunger 4 can be stabilized.
  • the groove 37 d of the holder 37 is formed to open radially upward with respect to the space S 2 in the stator 32, the hydraulic oil L from the groove 37 d of the holder 37 decreases when the oil level of the hydraulic oil L decreases. And the space S2 in the stator 32 is axially closed by the holder 37, and the space S2 in the stator 32 is easily filled with the hydraulic oil L. Since the groove 37d of the holder 37 linearly extends upward in the radial direction, the air mixed in the space S2 in the stator 32 does not stay in the middle of the groove 37d, and the air is outside the stator 32. Can be discharged smoothly.
  • the holder 37 and the stator 32 are positioned in the circumferential direction so that the groove 37d of the holder 37 is disposed radially upward. Therefore, the groove 37d of the holder 37 can be disposed radially upward, and the hydraulic oil L in the space S2 in the stator 32 can be reliably blocked.
  • the holder 37 is detachably attached to the open end face 32 h of the stator 32, the maintainability of the inside of the stator 32 can be enhanced.
  • the holder 37 is provided with the small diameter projecting portion 37c which protrudes to the right in the axial direction from the projecting portion 37b, when the plunger 4 is moved to the opposite side to the spool 22 when the solenoid valve 1 is off. Since it is possible to axially separate between the holder 37 and the end surface on the axial left side of the plunger 4 (see FIGS. 4 and 6), the inside of the stator 32 is moved when moving the plunger 4 to the opposite side to the spool 22.
  • the hydraulic oil L can be easily left in the space S2.
  • the plunger 4 is provided with the through hole 4a penetrating in the axial direction on the upper side with respect to the radial center, the space S2 in the stator 32 when the oil level of the hydraulic oil L in the valve housing decreases. Since the amount of fluid flowing through the through hole 4a of the plunger 4 can be suppressed, the decrease in the oil level of the hydraulic oil L in the space S2 in the stator 32 can be suppressed.
  • FIGS. 7 and 8 a solenoid valve according to a second embodiment will be described with reference to FIGS. 7 and 8.
  • the same reference numerals are given to the same components as the components shown in the above embodiment, and the redundant description will be omitted.
  • the stator 132 is formed in a cylindrical shape with a flange, and vertically below the inner peripheral portion of the end on the left side in the axial direction of the cylindrical portion 132a
  • a bottomed insertion groove 132k (positioning means) which is recessed from the inner diameter side to the outer diameter side and opens in the axial left direction is provided, and a holder 137 (a weir) is attached.
  • the holder 137 is formed in a disk shape having substantially the same diameter as the outer diameter of the cylindrical portion 132a of the stator 132, and the end surface 137a on the right side in the axial direction A cylindrical convex portion 137 b protruding rightward is provided.
  • the convex portion 137 b is formed to have an outer diameter substantially the same as the inner diameter of the through hole 132 d (first accommodation portion 132 e) of the stator 132, and the convex portion 137 b can be inserted into the through hole 132 d of the stator 132.
  • a shallow annular groove 137f is provided in the radial direction.
  • a cylindrical protrusion 137 c having a diameter smaller than that of the protrusion 137 b and projecting to the right in the axial direction is provided at the radial center of the protrusion 137 b.
  • the holder 137 is provided with a substantially L-shaped groove portion 137d (fluid passage) extending in the radial direction from the radial upper side of the convex portion 137b to the outer peripheral portion of the end surface 137a.
  • a projecting portion 137e (positioning means) having a substantially rectangular cross section which protrudes downward in the vertical direction from the outer peripheral portion on the side is provided.
  • the projecting portion 137e is formed to have an outer shape that is substantially the same as the circumferential dimension of the concave insertion groove 132k of the stator 132 described above.
  • the end face 137a of the holder 137 and the opening end face 132h of the stator 132 abut each other, and the projection 137e of the holder 137 is inserted into the insertion groove 132k of the stator 132.
  • the holder 137 and the stator 132 can be positioned in the circumferential direction such that the groove portion 137d of the holder 137 is disposed on the radially upper side by inserting and fitting the through hole from the opening on the axial left side.
  • the holder 137 and the stator 132 can be positioned in the circumferential direction by being guided by two side surfaces in the circumferential direction of the protruding portion 137e, the mounting operation of the holder 137 can be easily performed and the attachment accuracy is good.
  • a gap spaced apart in the radial direction is formed between the protrusion 137e of the holder 137 and the insertion groove 132k of the stator 132, and the gap is in communication with the space S2 in the stator 132 and the protrusion
  • the groove portion 137d communicates with an annular groove 137f provided on the axial left side (end surface 137a side) of the outer peripheral portion of the portion 137b.
  • the hydraulic oil L can be made to turn from the inside of the insertion groove 132k of the stator 132 to the groove portion 137d on the radially upper side via the annular groove 137f, the movement of the plunger 4 to the opposite side to the spool 22 Sometimes, the hydraulic oil L can be easily left in the space S2 in the stator 132.
  • the solenoid valve 1, 101 is a separate holder 37 having grooves 37d, 137d on the radially upper side as a weir for stopping the hydraulic oil L at the open end faces 32h, 132h of the stators 32, 132.
  • 137 is described above, but the invention is not limited thereto, and the weir may be used to block the hydraulic oil in the space in the stator and to circulate the hydraulic oil from the radially upper side to the outside of the stator
  • it may be configured integrally with the stator.
  • grooves 37 d and 137 d are provided in the holders 37 and 137 in the embodiment, the grooves may be provided on the open end surfaces 32 h and 132 h of the stators 32 and 132.
  • a cylinder may be comprised by the inner peripheral space of a solenoid molded object.
  • the spacer for axially separating between the holders 37 and 137 and the end surface on the left side in the axial direction of the plunger 4, it protrudes axially rightward from the convex portions 37 b and 137 b of the holders 37 and 137.
  • the small diameter projecting portions 37c and 137c are provided, the present invention is not limited to this, and the spacer may be provided separately from the holder.
  • Solenoid valve 2 Valve part 3
  • Solenoid part 4 Plunger (movable iron core) 4a through hole 5 rod 21 sleeve 21a through hole 21b opening 21c breathing hole (opening) 22 spool 30 solenoid case 30a cylindrical portion 30b first housing cylindrical portion 30c second housing cylindrical portion 30d opening (opening) 31
  • Solenoid compact 32 132 Stator (cylindrical body) 32a, 132a cylindrical portion 32b annular recessed portion 32c flange portion 32d, 132d through hole 32e, 132e first accommodating portion 32f second accommodating portion 32g annular surface portion 32h, 132h opening end face 32j recessed portion 32k protruding portion (positioning means) 33
  • Respiratory path 34 Coil 37, 137 Holder ( ⁇ ) 37a, 137a end face 37b, 137b convex portion 37c, 137c projecting portion 37d, 137d groove portion (fluid passage) 37e Insertion hole (positioning means) 132

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

Abstract

L'invention concerne une électrovanne qui peut effectuer une commande hydraulique de façon stable. Une électrovanne (1) à immersion comprend : une bobine (22) ; un manchon (21) à l'intérieur duquel la bobine (22) est disposée de manière à pouvoir se déplacer dans la direction axiale ; un noyau de fer (4) mobile qui est disposé au niveau d'une extrémité de la bobine (22) et qui provoque le déplacement de la bobine (22) ; un corps moulé (31) de solénoïde qui est disposé sur la périphérie externe du noyau de fer (4) mobile ; un boîtier (30) de solénoïde qui reçoit le noyau de fer (4) mobile et le corps moulé (31) de solénoïde ; et un corps cylindrique (32) qui reçoit le noyau de fer (4) mobile à l'intérieur d'un espace interne (S2). L'électrovanne (1) est fixée horizontalement à un élément de fixation. Le corps cylindrique (32) est pourvu d'un déversoir (37) au niveau d'une extrémité avant (32h) sur le côté opposé à la bobine (22) du noyau de fer (4).
PCT/JP2018/026132 2017-07-19 2018-07-11 Électrovanne WO2019017251A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019530985A JP7068306B2 (ja) 2017-07-19 2018-07-11 ソレノイドバルブ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-140366 2017-07-19
JP2017140366 2017-07-19

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WO2019017251A1 true WO2019017251A1 (fr) 2019-01-24

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PCT/JP2018/026132 WO2019017251A1 (fr) 2017-07-19 2018-07-11 Électrovanne

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021015136A1 (fr) * 2019-07-22 2021-01-28 株式会社デンソー Électrovanne
JP2021085469A (ja) * 2019-11-28 2021-06-03 株式会社デンソー ソレノイドバルブ

Citations (6)

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JP2006090540A (ja) * 2004-08-26 2006-04-06 Nachi Fujikoshi Corp 電磁弁
JP2014114922A (ja) * 2012-12-12 2014-06-26 Hitachi Automotive Systems Ltd 電磁弁及び締結構造
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