JP2019100401A - Valve device - Google Patents

Abstract

To provide a valve device which enables improvement of accuracy of grasping an axial position of a spool valve.SOLUTION: A valve device includes: a spool valve 30 having a first portion 32 arranged along a center axis extending in an axial direction and a second portion 33 extending from the first portion to one axial side; an oil passage body 20 having an oil passage 10a in which oil flows and a spool hole 23 which opens to at least the one axial side and extends in the axial direction and in which the spool valve is disposed so as to be movable in the axial direction; a magnet 50 fixed to the spool valve; a magnetic sensor 41 which is attached to the oil passage body and detects a magnetic field of the magnet; an elastic member 70 which is disposed at the one axial side of the first portion in the spool hole and applies an elastic force acting to the other axial side to the first portion; and a support member 71 attached to the oil passage body and supporting a one axial side end part of the elastic member in the spool hole.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a valve device.

  Spool valves provided in the oil passage body are known. For example, Patent Document 1 describes a spool valve provided in a discharge amount switching device of an oil pump.

JP, 2016-183579, A

  In the above-described spool valve, a magnet may be attached to the spool valve, and the axial position of the spool valve may be detected by detecting the magnetic field of the magnet with a magnetic sensor. However, in this case, when the spool valve rotates around the axis, the magnet rotates with the spool valve, so that the magnetic field of the magnet detected by the magnetic sensor may change. As a result, even when the axial position of the spool valve does not actually change, the position information of the spool valve detected by the magnetic sensor changes, and the axial position of the spool valve is accurately grasped I could not do it.

  An object of the present invention is to provide a valve device which can improve the accuracy of grasping the position of the spool valve in the axial direction in view of the above-mentioned circumstances.

  One aspect of the valve device of the present invention is a spool valve having a first portion disposed along an axially extending central axis, and a second portion extending axially from the first portion, and an oil An oil passage body having an oil passage body and an oil passage body having an opening extending axially at least one side in the axial direction and having the spool hole in which the spool valve is axially movably disposed, and fixed to the spool valve A magnet, a magnetic sensor attached to the oil passage body, which detects the magnetic field of the magnet, and an axial direction one side of the first portion in the spool hole, the first portion being directed to the other side in the axial direction And a support member attached to the oil passage body and supporting an end of the elastic member on one side in the axial direction in the spool hole. That. The second portion has an opposing portion that faces the support member in the circumferential direction of the central axis and can be in contact with the support member.

  According to one aspect of the present invention, there is provided a valve device capable of improving the accuracy of grasping the axial position of the spool valve.

FIG. 1 is a perspective view showing a part of the valve device of the first embodiment. FIG. 2 is an exploded perspective view showing a part of the valve device of the first embodiment. FIG. 3 is a view showing a part of the valve device of the first embodiment, and is a cross-sectional view taken along the line III-III in FIG. FIG. 4 is a view showing a part of the valve device of the first embodiment, and is a cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is a cross-sectional view showing a part of a valve device of a modified example of the first embodiment. FIG. 6 is a perspective view showing a part of the valve device of the second embodiment.

  In each figure, the Z-axis direction is the vertical direction Z. The X-axis direction is the horizontal direction X in the horizontal direction orthogonal to the vertical direction Z. The Y-axis direction is an axial direction Y orthogonal to the left-right direction X in the horizontal direction orthogonal to the vertical direction Z. The positive side in the vertical direction Z is called "upper side" and the negative side is called "lower side". The positive side of the axial direction Y is called "front side" and the negative side is called "rear side". The front side corresponds to one side in the axial direction, and the rear side corresponds to the other side in the axial direction. The upper side, the lower side, the front side, the rear side, the up and down direction, and the left and right direction are simply names for describing the relative positional relationship of each part, and the actual arrangement relationship etc. is an arrangement indicated by these names. It may be an arrangement relation etc. other than the relation etc.

First Embodiment
The valve device 10 of the present embodiment shown in FIGS. 1 and 2 is, for example, a control valve mounted on a vehicle. The valve device 10 includes an oil passage body 20, a spool valve 30, a magnet 50, a sensor module 40, an elastic member 70, and a support member 71.

  As shown in FIG. 3, the oil passage body 20 has an oil passage 10 a in which oil flows. The portion of the oil passage 10a indicated in FIG. 3 is a part of a spool hole 23 described later. In each figure, for example, a state in which a part of the oil passage body 20 is cut out is shown. As shown in FIG. 1, the oil passage body 20 has a lower body 21 and an upper body 22. Although not shown, the oil passage 10a is provided, for example, in both the lower body 21 and the upper body 22.

  The lower body 21 has a lower body body 21a and a separate plate 21b disposed to overlap the upper side of the lower body body 21a. In the present embodiment, the upper surface of the lower body 21 corresponds to the upper surface of the separate plate 21 b and is orthogonal to the vertical direction Z. The upper body 22 is disposed to overlap the upper side of the lower body 21. The lower surface of the upper body 22 is orthogonal to the vertical direction Z. The lower surface of the upper body 22 is in contact with the upper surface of the lower body 21, that is, the upper surface of the separate plate 21b.

  As shown in FIG. 3, the upper body 22 has a spool hole 23 extending in the axial direction Y. In the present embodiment, the cross-sectional shape orthogonal to the axial direction Y of the spool hole 23 is a circular shape centering on the central axis J. The central axis J extends in the axial direction Y. The radial direction centered on the central axis J is simply referred to as “radial direction”, and the circumferential direction centered on the central axis J is simply referred to as “circumferential direction”.

  The spool hole 23 opens at least on the front side. In the present embodiment, the rear end of the spool hole 23 is closed. That is, the spool hole 23 is a hole that is open on the front side and has a bottom. The spool holes 23 may be opened on both sides in the axial direction Y, for example. At least a part of the spool hole 23 constitutes a part of the oil passage 10 a in the oil passage body 20.

  The spool hole 23 has a spool hole main body 23a and an introduction hole 23b. Although illustration is omitted, an oil passage 10a provided in a portion of the oil passage body 20 other than the spool hole 23 is opened on the inner peripheral surface of the spool hole main body 23a. The inner diameter of the introduction hole 23b is larger than the inner diameter of the spool hole body 23a. The introduction hole portion 23b is connected to the front end of the spool hole main body 23a. The introduction hole portion 23 b is an end portion on the front side of the spool hole 23 and opens on the front side.

  The upper body 22 has through holes 22 a and 22 b at the front end of the upper body 22. The through hole 22a penetrates the upper body 22 in the vertical direction Z from the upper surface of the upper body 22 to the inner peripheral surface of the introduction hole 23b. The through hole 22 b penetrates the upper body 22 in the vertical direction Z from the lower surface of the upper body 22 to the inner peripheral surface of the introduction hole 23 b. That is, the through hole 22 b corresponds to a through hole extending in the vertical direction Z from the lower surface of the upper body 22 to the inner peripheral surface of the spool hole 23. As shown in FIG. 2, the through holes 22 a and the through holes 22 b are circular when viewed from the upper side. The through holes 22a and the through holes 22b overlap with each other as viewed from the upper side.

  As shown in FIG. 3, the through hole 22 b has a large diameter portion 22 c and a small diameter portion 22 d. The large diameter portion 22 c is a portion having a bottom surface 22 e that is recessed upward from the lower surface of the upper body 22. The bottom surface 22 e is a surface that faces downward and is orthogonal to the vertical direction Z. The small diameter portion 22d extends from the bottom surface 22e to the inner peripheral surface of the spool hole 23, and is a portion having a smaller inner diameter than the large diameter portion 22c.

  As shown in FIG. 1, the portion of the upper body 22 where the spool hole 23 is provided protrudes above the other portions of the upper body 22. The upper surface of the front end of the projecting portion is a semi-circular curved surface that is convex upward. The through hole 22a opens at the upper end of the semicircular curved surface. The lower body main body 21a, the separate plate 21b and the upper body 22 are each a single member, for example. The lower body body 21a, the separate plate 21b and the upper body 22 are made of nonmagnetic material.

  As shown in FIG. 3, the spool valve 30 extends in an axial direction Y intersecting the vertical direction Z. The spool valve 30 is attached to the oil passage body 20. The spool valve 30 is disposed movably in the axial direction Y inside the spool hole 23. In the present embodiment, the spool valve 30 is, for example, a single member made of metal. The spool valve 30 has a spool valve main body portion 31, a magnet fixing portion 32 and a projecting portion 33.

  The spool valve main body portion 31 moves in the axial direction Y in the spool hole main body 23a to open and close the opening of the oil passage 10a opened to the inner peripheral surface of the spool hole main body 23a. Although not shown, a frontward force is applied to the rear end of the spool valve body 31 from an oil hydraulic pressure or a drive device such as a solenoid actuator. The spool valve body 31 has a plurality of large diameter portions 31 a and a plurality of small diameter portions 31 b. Each part of the spool valve 30 has a cylindrical shape extending in the axial direction Y centering on the central axis J.

  The plurality of large diameter portions 31 a and the plurality of small diameter portions 31 b are alternately and continuously arranged from the large diameter portion 31 a connected to the rear end of the magnet fixing portion 32 toward the rear side. The outer diameter of the large diameter portion 31a is larger than the outer diameter of the small diameter portion 31b. The outer diameter of the large diameter portion 31a is substantially the same as the inner diameter of the spool hole body 23a, and is slightly smaller than the inner diameter of the spool hole body 23a. The large diameter portion 31a is movable in the axial direction Y while sliding with respect to the inner peripheral surface of the spool hole body 23a. The large diameter portion 31 a functions as a valve portion that opens and closes the opening of the oil passage 10 a that opens to the inner peripheral surface of the spool hole main body 23 a.

  The magnet fixing portion 32 is connected to the end of the spool valve body 31 in the axial direction Y. More specifically, the rear end portion of the magnet fixing portion 32 is connected to the front end portion of the large diameter portion 31 a which is disposed on the front side among the plurality of large diameter portions 31 a. The magnet fixing portion 32 is disposed movably in the axial direction Y inside the introduction hole portion 23b. The outer diameter of the magnet fixing portion 32 is larger than the outer diameter of the large diameter portion 31a. The outer diameter of the magnet fixing portion 32 is substantially the same as the inner diameter of the introduction hole 23 b and slightly smaller than the inner diameter of the introduction hole 23 b.

  The magnet fixing portion 32 is movable in the axial direction Y while sliding with respect to the inner peripheral surface of the introduction hole 23 b. That is, the magnet fixing portion 32 has a sliding portion which can move in the axial direction Y while sliding with respect to the inner peripheral surface of the spool hole 23. In the present embodiment, the sliding portion is the entire magnet fixing portion 32. The radially outer edge portion of the rear surface of the magnet fixing portion 32 can contact the step surface facing the front side in the step generated between the spool hole body 23a and the introduction hole portion 23b. Thereby, the spool valve 30 can be prevented from moving rearward from the position where the magnet fixing portion 32 and the step surface shown in FIG. 3 contact each other, and the final end position of the spool valve 30 can be determined.

  The magnet fixing portion 32 has a first recess 32 a that is recessed radially inward from the outer peripheral surface of the magnet fixing portion 32. As described above, in the present embodiment, since the entire magnet fixing portion 32 corresponds to the sliding portion, the first recess 32 a is recessed inward in the radial direction from the outer peripheral surface of the sliding portion. In FIG. 3, the first recess 32 a is recessed downward from the upper end portion of the magnet fixing portion 32. The inner side surface of the first recess 32 a includes a pair of surfaces facing in the axial direction Y.

  As shown in FIG. 2, the protrusion 33 extends from the magnet fixing portion 32 to the front side. The protrusion 33 is disposed on one side in the left-right direction relative to the central axis J. The protrusion 33 has a semi-cylindrical shape that extends in the axial direction Y and is convex on one side in the left-right direction. That is, the protrusion 33 has a semicircular shape that is convex to one side in the left-right direction when viewed along the axial direction Y. In FIG. 2, one side in the left-right direction is the positive side of the X axis.

  In the present specification, “semicircular shape” may be a shape obtained by cutting a part of a circle by a straight line, that is, a shape composed of an arc and a chord, and the central angle of the arc is an angle other than 180 °. The shape may be In the shape of the protrusion 33 of the present embodiment viewed in the axial direction Y, the central angle of the arc is smaller than 180 °.

  The projecting portion 33 is disposed radially inward of the outer peripheral surface of the magnet fixing portion 32. As shown in FIG. 4, the side surface of the protrusion 33 is disposed radially inward of the inner peripheral surface of the introduction hole 23 b. As shown in FIG. 3, the front end of the protrusion 33 is disposed on the front side of the through holes 22 a and 22 b. The projecting portion 33 projects to the front side relative to the support member 71 through one side in the left-right direction of the support member 71.

  As shown in FIG. 2, the projecting portion 33 has an opposing portion 34 which is a flat surface orthogonal to the radial direction of the central axis J. The facing portion 34 extends from the end surface on the front side of the magnet fixing portion 32 to the front side. The facing portion 34 is a rectangular surface long in the axial direction Y. The facing portion 34 is a side surface on the central axis J side among the side surfaces of the projecting portion 33 in the left-right direction X. In FIG. 2, the facing portion 34 is a side surface of the protrusion 33 on the negative side of the X axis. As shown in FIG. 4, the facing portion 34 faces the inner circumferential surface of the introduction hole 23 b in the radial direction via a gap. The facing portion 34 corresponds to a chord in a semicircular shape in which the projecting portion 33 is viewed along the axial direction Y.

  In the present embodiment, the combined portion of the spool valve body portion 31 and the magnet fixing portion 32 corresponds to a first portion disposed along the central axis J extending in the axial direction Y. The protrusion 33 corresponds to a second portion extending from the first portion in the axial direction to one side, that is, the front side.

  As shown in FIG. 2, the magnet 50 has a substantially rectangular parallelepiped shape. The upper surface of the magnet 50 is, for example, a surface curved in an arc shape along the circumferential direction. As shown in FIG. 3, the magnet 50 is accommodated in the first recess 32 a and fixed to the magnet fixing portion 32. Thereby, the magnet 50 is fixed to the spool valve 30. The magnet 50 is fixed, for example, by an adhesive. The radially outer side surface of the magnet 50 is, for example, positioned radially inward of the outer peripheral surface of the magnet fixing portion 32. The radially outer surface of the magnet 50 opposes the inner circumferential surface of the introduction hole 23 b in the radial direction with a gap.

  As described above, the magnet fixing portion 32 in which the first recess 32 a is provided is a sliding portion that moves while sliding with respect to the inner peripheral surface of the spool hole 23. Therefore, the outer peripheral surface of the magnet fixing portion 32 and the inner peripheral surface of the spool hole 23 are in contact with each other or face each other through a slight gap. As a result, foreign matter such as metal pieces contained in the oil does not easily enter the first recess 32a. Therefore, it can suppress that foreign substances, such as a metal piece contained in oil, adhere to the magnet 50 accommodated in the 1st recessed part 32a.

  The sensor module 40 has a housing 42 and a magnetic sensor 41. That is, the valve device 10 includes the housing 42 and the magnetic sensor 41. The housing 42 accommodates the magnetic sensor 41. As shown in FIG. 1, the housing 42 is, for example, a rectangular box shape that is flat in the vertical direction Z. The housing 42 is fixed to a flat surface of the upper surface of the upper body 22 located on the rear side of the semicircular curved surface on which the through hole 22 a is provided.

  As shown in FIG. 3, the magnetic sensor 41 is fixed to the bottom of the housing 42 inside the housing 42. Thereby, the magnetic sensor 41 is attached to the oil passage body 20 via the housing 42. The magnetic sensor 41 detects the magnetic field of the magnet 50. The magnetic sensor 41 is, for example, a Hall element. The magnetic sensor 41 may be a magnetoresistive element.

  When the position of the magnet 50 in the axial direction Y changes with the movement of the spool valve 30 in the axial direction Y, the magnetic field of the magnet 50 passing through the magnetic sensor 41 changes. Therefore, by detecting the change of the magnetic field of the magnet 50 by the magnetic sensor 41, the position of the magnet 50 in the axial direction Y, that is, the position of the spool valve 30 in the axial direction Y can be detected.

  The magnetic sensor 41 and the magnet 50 overlap in the vertical direction Z. That is, at least a part of the magnet 50 overlaps the magnetic sensor 41 in a direction parallel to the vertical direction Z in the radial direction. Therefore, the magnetic sensor 41 can easily detect the magnetic field of the magnet 50. Therefore, the sensor module 40 can detect displacement of the spool valve 30 in the axial direction Y more accurately.

  In the present specification, “at least a part of the magnet radially overlaps with the magnetic sensor” means that at least a part of the position where the spool valve to which the magnet is directly fixed moves in the axial direction, At least a part of the magnet may be radially overlapped with the magnetic sensor. That is, for example, when the spool valve 30 is displaced in the axial direction Y from the position of FIG. 3, the magnet 50 may not overlap with the magnetic sensor 41 in the vertical direction Z. In the present embodiment, a part of the magnet 50 overlaps the magnetic sensor 41 in the vertical direction Z at any position as long as the spool valve 30 moves in the axial direction Y.

  As shown in FIG. 2, the support member 71 has a cylindrical shape extending in a direction intersecting the axial direction Y. In the present embodiment, the support member 71 extends in the vertical direction Z orthogonal to the axial direction Y. As shown in FIG. 3, the support member 71 is attached to the oil passage body 20. The support member 71 is passed through the through hole 22 b. The support member 71 has an extending portion 71a and a hooking portion 71b.

  The extending portion 71 a extends in the vertical direction Z. As shown in FIGS. 1 and 3, the extension 71 a is inserted into the inside of the introduction hole 23 b through the through hole 22 b. The upper end portion of the extending portion 71a is inserted into the through hole 22a. Thus, the support member 71 extends in the direction intersecting the axial direction Y and penetrates the inside of the spool hole 23. The extension part 71a closes a part of the opening on the front side of the introduction hole 23b.

  The hooking portion 71 b is connected to the lower end of the extending portion 71 a. The hooking portion 71 b is a lower end portion of the support member 71. The outer diameter of the hooking portion 71b is larger than the outer diameter of the extending portion 71a. The outer diameter of the hooking portion 71b is larger than the inner diameter of the small diameter portion 22d. As shown in FIGS. 3 and 4, the hooking portion 71 b is inserted into the large diameter portion 22 c. The hooking portion 71 b is a portion disposed to face the lower side of the bottom surface 22 e. Thereby, it can suppress that the hook part 71b moves upward.

  As shown in FIG. 3, the support member 71 is disposed on the front side of the elastic member 70. Thus, the support member 71 supports the front end of the elastic member 70 in the spool hole 23. As shown in FIG. 4, the support member 71 overlaps the central axis J as viewed in the axial direction Y. Therefore, the center of the elastic member 70 can be supported by the support member 71, and the elastic member 70 can be stably supported. Further, as described above, since the support member 71 penetrates the inside of the spool hole 23, the portion of the support member 71 that supports the elastic member 70 can be enlarged in the radial direction. Thereby, the elastic member 70 can be supported more stably. In the present embodiment, the extending portion 71 a of the support member 71 is viewed along the axial direction Y and overlaps the central axis J. In the present embodiment, the center of the support member 71 in the left-right direction X is disposed at the same position as the center of the introduction hole 23 b in the left-right direction X.

  As shown in FIG. 3, the support member 71 receives an elastic force directed to the front side from the elastic member 70, and the extension portion 71 a is pressed against the front side portion of the inner peripheral surfaces of the through holes 22 a and 22 b. The support member 71 is rotatable around the axis of the support member 71. In the present embodiment, the axis of the support member 71 extends in the vertical direction Z.

  In the present embodiment, the support member 71 is inserted through the through hole 22b and the introduction hole 23b from the opening of the through hole 22b opened on the lower surface of the upper body 22 before the upper body 22 and the lower body 21 are overlapped. The through holes 22a are inserted. The upper body 22 and the lower body 21 are stacked and combined in the vertical direction Z, whereby the hooking portion 71 b inserted in the large diameter portion 22 c is supported from the lower side by the upper surface of the lower body 21. Thus, the support member 71 can be attached to the oil passage body 20.

  As described above, according to the present embodiment, since the through hole 22 b is provided on the lower surface of the upper body 22, the support member 71 passing through the through hole 22 b can be supported from the lower side by the lower body 21. 71 can be suppressed from moving downward. Further, since the hooking portion 71b is disposed to face the lower side of the bottom surface 22e, it is possible to suppress the support member 71 from moving upward. Therefore, the support member 71 can be prevented from moving in the vertical direction Z and coming off from the oil passage body 20.

  The elastic member 70 is a coil spring extending in the axial direction Y. The elastic member 70 is disposed in the spool hole 23 on the front side of the magnet fixing portion 32, that is, on the front side of the first portion of the spool valve 30. The projecting portion 33 is passed through the inside of the elastic member 70. Therefore, the elastic member 70 can be supported from the inside by the projection 33. Thus, the elastic member 70 can be prevented from moving in the radial direction and shifting in position.

  The rear end of the elastic member 70 contacts the front end face of the magnet fixing portion 32. The front end of the elastic member 70 contacts the support member 71. More specifically, the front end of the elastic member 70 contacts the extension 71a.

  The front end of the elastic member 70 is supported by the support member 71, whereby the elastic member 70 applies a rearward elastic force to the first portion of the spool valve 30. Therefore, for example, the axial direction of the spool valve 30 at a position where the force applied from the driving device such as oil pressure or solenoid actuator applied to the rear end of the spool valve 30 balances the elastic force of the elastic member 70 The position of Y can be maintained. Thus, by changing the force applied to the rear end of the spool valve 30, the position in the axial direction Y of the spool valve 30 can be changed, and the opening and closing of the oil passage 10a inside the oil passage body 20 can be performed. Can be switched.

  In the present embodiment, the support member 71 not only functions as a member that supports the elastic member 70 from the front side, but also functions as a rotation stop member of the spool valve 30. As shown in FIG. 4, the support member 71 and the facing portion 34 face each other in the circumferential direction. In the present specification, "a certain two parts are circumferentially opposed" includes that both of a certain two parts are located on one imaginary circle along the circumferential direction and are opposed to each other. The support member 71 and the facing portion 34 can contact each other. In other words, the facing portion 34 faces the support member 71 in the circumferential direction of the central axis J and can contact the support member 71.

  Therefore, according to the present embodiment, for example, when the facing portion 34 tries to rotate around the central axis J, the facing portion 34 contacts the support member 71. Thereby, the rotation of the facing portion 34 is suppressed by the support member 71, and the rotation of the spool valve 30 about the central axis J is suppressed. Therefore, it can suppress that the position of the magnet 50 fixed to the spool valve 30 shifts | deviates to the circumferential direction. Therefore, when the position of the spool valve 30 in the axial direction Y does not change, it is possible to suppress the change of the position information of the spool valve 30 detected by the magnetic sensor 41. Thereby, the precision which grasps | ascertains the position of the axial direction Y of the spool valve 30 can be improved. In FIG. 4, the facing portion 34 makes line contact with the support member 71 from the upper end portion of the facing portion 34 to the lower end portion of the facing portion 34.

  In addition, since the rotation of the spool valve 30 can be suppressed by the support member 71 that supports the front end of the elastic member 70, it is not necessary to separately provide a rotation stop member. Thereby, the rotation of the spool valve 30 can be suppressed while suppressing the increase in the number of parts of the valve device 10.

  Further, according to the present embodiment, the facing portion 34 is a flat surface orthogonal to the radial direction of the central axis J. Therefore, it is easy to make the opposing part 34. Further, according to the present embodiment, the projecting portion 33 has a semicircular shape in which the facing portion 34 corresponds to a chord when viewed along the axial direction Y. Therefore, the facing portion 34 can be more easily formed by cutting out a part of the cylindrical spool valve 30.

  Further, according to the present embodiment, the magnet 50 is fixed to the magnet fixing portion 32 connected to the end of the spool valve main body 31 in the axial direction Y. Therefore, the magnet 50 can be provided in a portion of the spool valve 30 that opens and closes the opening of the oil passage 10 a that opens in the inner peripheral surface of the spool hole 23, that is, the portion other than the spool valve body 31. Therefore, for example, as in the present embodiment, by making the outer diameter of the magnet fixing portion 32 larger than the outer diameter of the spool valve main body 31, the magnet 50 fixed to the magnet fixing portion 32 is disposed more radially outward It's easy to do. Thereby, the magnet 50 can be easily disposed close to the magnetic sensor 41, and the position detection accuracy of the spool valve 30 by the magnetic sensor 41 can be improved.

  Further, according to the present embodiment, the support member 71 is rotatable around the axis of the support member 71. Therefore, when the spool valve 30 moves in the axial direction Y, the support member 71 in contact with the facing portion 34 rotates around the axis of the support member 71. Thereby, it can suppress that the opposing part 34 and the supporting member 71 rub, and it can suppress that the movement of the axial direction Y of the spool valve 30 is inhibited.

  When assembling the valve device 10 of the present embodiment, the operator first inserts the spool valve 30 into the spool hole 23. After placing the elastic member 70 through the projection 33 and placing the elastic member 70 in the spool hole 23, the worker inserts the support member 71 from the lower surface of the upper body 22 into the through holes 22a and 22b and presses the elastic member 70 from the front side. . At this time, the support member 71 receives a force directed to the front side from the elastic member 70 and is pressed against the inner peripheral surfaces of the through holes 22a and 22b, so that the support members 71 are suppressed from dropping downward from the through holes 22a and 22b. Here, according to the present embodiment, there is no member inserted from the lower surface of the upper body 22 other than the support member 71. Therefore, even when the lower surface of the upper body 22 is directed downward, it is possible to suppress the component from falling downward. As a result, when assembling the valve device 10, there is no need to reverse the oil passage body 20 in the vertical direction Z or the like, and the valve device 10 can be easily assembled. Thereafter, the operator superimposes the upper body 22 on the upper side of the lower body 21. Thus, the worker assembles the valve device 10.

(Modification)
As shown in FIG. 5, in the valve device 110 of the present modification, the first portion of the spool valve 130 has a second recess 135 that is recessed rearward from the front end of the first portion. The first portion of the spool valve 130 is a portion where the spool valve body 31 and the magnet fixing portion 32 are combined. The second recess 135 corresponds to a recess that is recessed from the end on one axial side of the first portion to the other axial side. The second recess 135 is recessed rearward from the front end of the magnet fixing portion 32 and extends to the spool valve main body 31. Although illustration is omitted, the inner edge of the second recess 135 has a circular shape centering on the central axis J when viewed from the front side.

  At least a portion of the elastic member 170 is disposed in the second recess 135. Therefore, at least a part of the elastic member 170 can be overlapped with the first portion of the spool valve 130 in the radial direction, and the dimension of the valve device 110 in the axial direction Y can be easily reduced. In the present modification, the rear portion of the elastic member 170 is disposed in the second recess 135. The rear end of the elastic member 170 contacts the bottom of the second recess 135.

  The protrusion 133 has a third recess 133 a that is recessed in the left-right direction from the facing portion 134. The third recess 133 a extends in the axial direction Y. The third recess 133 a extends from the front end of the protrusion 133 to the rear end of the protrusion 133. Thereby, the opposing portion 134 is divided in the vertical direction Z by the third concave portion 133a. Although the illustration is omitted, the inner side surface of the third recess 133 a is arc-shaped as viewed along the axial direction Y, and overlaps the inner peripheral surface of the second recess 135. A portion on one side in the left-right direction of the front end of the elastic member 170 is inserted into the third recess 133a.

Second Embodiment
As shown in FIG. 6, in the valve device 210 of the present embodiment, the projecting portion 233 of the spool valve 230 has a plate shape extending in the axial direction Y. The plate surface of the protrusion 233 is orthogonal to the left-right direction X. The protrusion 233 extends forward from the center of the magnet fixing portion 32 in the left-right direction X. The surfaces on both sides in the left-right direction of the protruding portion 233 are facing portions 234, respectively.

  The support member 271 has a plate shape whose plate surface is parallel to the left-right direction X. The support member 271 has an extending portion 271a and a hooking portion 271b. The extending portion 271a extends in the vertical direction Z. The extending portion 271a has a rectangular shape elongated in the vertical direction Z as viewed from the front side. The plate surface of the extending portion 271a is orthogonal to the axial direction Y. The hooking portion 271b is bent forward from the lower end of the extending portion 271a. The hooking portion 271b is inserted into the large diameter portion 22c of the through hole 22b.

  The support member 271 has a slit 271 c penetrating the support member 271 in the axial direction Y. The slit 271 c penetrates the extending portion 271 a in the axial direction Y. The slits 271 c extend in the vertical direction Z. The slit 271 c opens upward. By providing the slits 271 c, the upper portion of the extending portion 271 a is bifurcated. Thus, the support member 271 is provided with a pair of column portions 271 d extending in the vertical direction Z and facing each other in the lateral direction X with a gap.

  The protrusion 233 as a second portion is passed through the slit 271c. As a result, the pair of column portions 271 d opposes the opposing portion 234, and the rotation of the spool valve 230 is suppressed. In addition, the opposing portion 234 of the projecting portion 233 can be supported by both lateral side surfaces of the slit 271 c. Thus, it is possible to suppress the spool valve 230 from shifting in the left-right direction X, and to stabilize the movement of the spool valve 230 in the axial direction Y.

  The present invention is not limited to the above-described embodiment, and other configurations can be adopted. The configuration of the facing portion is not particularly limited as long as it is circumferentially opposed to the support member and in contact with the support member. The facing portion may be a curved surface. The shape of the protrusion as the second part is not particularly limited as long as it has the opposite part. A plurality of protrusions as the second portion may be provided. The support member may extend in a direction other than the direction orthogonal to the axial direction among the directions intersecting the axial direction.

  Further, the configuration of the magnet is not particularly limited. The magnet may, for example, be annular and be fitted to the spool valve. The magnet may be configured by combining a plurality of magnets. In addition, if the magnetic field of the magnet can be detected by the magnetic sensor, the magnetic sensor and the magnet may not overlap in the radial direction.

  Moreover, in the above-mentioned embodiment, although the spool hole which an oil-path body has was set as the structure provided in an upper body, it is not restricted to this. Spool holes may be provided in the lower body. The separate plate may not be provided. The oil passage body may not be divided into the upper body and the lower body. Further, the axial direction in which the central axis J extends may intersect without being perpendicular to the vertical direction Z, or may be parallel to the vertical direction Z.

  The oil passage body may have an oil passage body and a sensor attachment member that is separate from the oil passage body and attached to the oil passage body. The magnetic sensor 41 is attached to the sensor attachment member. The sensor attachment member is, for example, a front portion of the above-described upper body 22 to which the sensor module 40 is fixed. That is, the front portion of the upper body 22 described above may be configured as a separate member and attached to the oil passage body. In this configuration, the oil passage body has a portion of the upper body 22 other than the sensor attachment member, and the lower body 21. In this configuration, the spool hole 23 is provided across the oil passage body and the sensor attachment member. In this case, the introduction hole 23 b is provided in the sensor attachment member. Therefore, the magnet 50 is accommodated in the portion of the spool hole 23 provided in the sensor attachment member. According to this configuration, the configuration of the introduction hole 23b in which the magnet 50 is accommodated can be easily changed only by replacing the sensor attachment member.

  Moreover, the use of the valve apparatus of embodiment mentioned above is not specifically limited, You may mount other than a vehicle. Moreover, each said structure can be combined suitably in the range which does not contradiction mutually.

  10, 110, 210: valve device, 10a: oil passage, 20: oil passage body, 21: lower body, 22: upper body, 22b: through hole, 22c: large diameter portion, 22d: small diameter portion, 22e: bottom surface, Reference Signs List 23 spool hole 30, 130, 230 spool valve 31 spool valve main body (first portion) 32 magnet fixing portion (first portion) 33, 233 protrusion (second portion) 34 , 134, 234: magnetic member, 70: 170 elastic member, 71, 271: supporting member, 135: second concave portion (concave portion), 271 c: slit, J: central axis, Y ... axial direction, Z ... vertical direction

Claims (9)

A spool valve having a first portion disposed along an axially extending central axis and a second portion extending axially to one side from the first portion;
An oil passage through which oil flows, and an oil passage body having a spool hole which is open in at least one axial direction and extends in the axial direction, and in which the spool valve is axially movably disposed;
A magnet fixed to the spool valve;
A magnetic sensor attached to the oil passage body and detecting a magnetic field of the magnet;
An elastic member disposed on one side in the axial direction of the first portion in the spool hole and applying an elastic force directed to the other side in the axial direction to the first portion;
A support member attached to the oil passage body and supporting an end of the elastic member on one side in the axial direction in the spool hole;
Equipped with
The said 2nd part is a valve apparatus which has an opposing part which opposes the said supporting member and the circumferential direction of the said central axis, and can contact the said supporting member.   The valve device according to claim 1, wherein the support member extends in a direction intersecting with the axial direction, penetrates the inside of the spool hole, and overlaps with the central axis when viewed in the axial direction.   The valve device according to claim 1, wherein the elastic member is a coil spring through which the second portion passes.   The valve device according to any one of claims 1 to 3, wherein the facing portion is a flat surface orthogonal to the radial direction of the central axis.   The valve device according to claim 4, wherein the second portion has a semicircular shape in which the facing portion corresponds to a chord when viewed in the axial direction.   The valve device according to any one of claims 1 to 5, wherein the support member has a cylindrical shape extending in a direction intersecting with the axial direction and is rotatable around an axis of the support member. The support member has a slit axially penetrating the support member,
The valve device according to any one of claims 1 to 5, wherein the second portion is in the form of a plate that passes through the slit. The elastic member is a coil spring,
The first portion has a recess that is recessed from the end on one axial side of the first portion to the other axial side,
The valve device according to any one of claims 1 to 7, wherein at least a part of the elastic member is disposed in the recess. The support member extends in the vertical direction intersecting the axial direction,
The oil passage body is
And the lower body,
An upper body disposed on the upper side of the lower body;
Have
The spool hole is provided in the upper body,
The upper body has a through hole extending in the vertical direction from the lower surface of the upper body to the inner peripheral surface of the spool hole,
The support member is passed through the through hole,
The through hole is
A large-diameter portion having a bottom surface and being recessed upward from the lower surface of the upper body;
A small diameter portion extending from a bottom surface of the large diameter portion to an inner peripheral surface of the spool hole and having a smaller inner diameter than the large diameter portion;
Have
The valve device according to any one of claims 1 to 8, wherein the support member has a portion disposed to face the lower side of the bottom surface of the large diameter portion.

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