JP2019056472A - solenoid valve - Google Patents

Abstract

To provide a solenoid valve that enables work for fixing a solenoid part to a valve body to be performed easily.SOLUTION: A solenoid valve 1 includes: a solenoid part 10 for moving a shaft part 11 through excitation of a coil 29; a valve body 50 located on a front side of the solenoid part 10 and having a spool 52 movable together with the shaft part 11; and a fixing plate part 70 located between the solenoid part 10 and the valve body 50 to fix the solenoid part 10 to the valve body 50. The solenoid part 10 includes the shaft part 11, a core 17, a bobbin 25, a coil 29, and a housing 30 for housing these elements. The housing 30 includes a swaging part 32 protruded from a front side end. The fixing plate part 70 includes: a central hole part 73; and a fixing part 79 located on a radial outer side of the central hole part 73 to fix the fixing plate part 70 to the valve body 50. Since the swaging part 32 penetrates through a mounting hole part 75a and is bent in the radial direction, the housing 30 is fixed to the fixing plate part 70.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a solenoid valve.

  2. Description of the Related Art Conventionally, an electromagnetic valve that performs hydraulic control of a hydraulic circuit connected to an automatic transmission of a vehicle such as an automobile is known. For example, Patent Document 1 discloses an electromagnetic valve having a solenoid part that moves a shaft by excitation of a coil, and a valve body that is positioned on one side in the axial direction of the solenoid part and has a spool that can move as the shaft moves. Disclosed.

  The solenoid part described in Patent Document 1 includes a shaft centering on a central axis extending in the axial direction, a core (fixed core) positioned on the outer side in the radial direction of the shaft, and positioned on the outer side in the radial direction of the shaft. A plunger (movable core) that moves in the axial direction with respect to the core, a bobbin that covers a radially outer side surface of the core (fixed core), a coil wound around the bobbin, a shaft, a core (fixed core), A bottomed cylindrical housing that houses a plunger (movable core), a bobbin, and a coil, and has a bottom on the other side in the axial direction.

  The solenoid part is fixed to the valve body by crimping one end (clamping part) in the axial direction of the housing to the other end in the axial direction of the valve body.

JP 2011-1112076 A

  The solenoid part described in Patent Document 1 has a coupler part that is integrally molded with a bobbin. The coupler portion is positioned on the outer side in the radial direction of the housing on one axial side of the housing and extends toward the valve body side, and is disposed at an adjacent position on the outer side in the radial direction of the caulking portion of the housing. For this reason, when caulking the caulking part of the housing to the valve body with the caulking jig, since the coupler part is provided, the caulking jig is hardly brought into contact with the caulking part, and the workability of the caulking work is reduced. .

  An object of the present invention is to provide an electromagnetic valve that can be easily fixed to fix a solenoid portion to a valve body.

  An exemplary first invention of the present application includes: a solenoid part that moves a shaft part by excitation of a coil; and a valve body that is positioned on one side in the axial direction of the solenoid part and has a spool that can move as the shaft part moves. A fixing plate portion that is positioned between the solenoid portion and the valve body and fixes the solenoid portion to the valve body, and the solenoid portion includes the shaft portion and a radial direction of the shaft portion. An outer core, a bobbin disposed radially outside the core, the coil wound around the bobbin, the shaft portion, the core, the bobbin, and the coil are accommodated on the other side in the axial direction. A bottomed cylindrical housing having a bottom portion, the housing having a caulking portion projecting from one axial end portion to one axial direction, and the fixing plate portion extending in the axial direction. Central hole through And a mounting hole portion that is located radially outside the central hole portion and into which the caulking portion is inserted, and that is located radially outside the mounting hole portion, and the fixing plate portion is inserted through a fixing member. An electromagnetic valve that is fixed to the fixing plate portion when the caulking portion passes through the mounting hole and is bent in a radial direction. It is.

  According to the first exemplary invention of the present application, it is possible to provide an electromagnetic valve that can be easily fixed to fix the solenoid portion to the valve body.

It is sectional drawing of the solenoid valve which concerns on 1st Embodiment. It is a perspective view of the housing of the solenoid part which concerns on 1st Embodiment. It is sectional drawing of the solenoid part corresponded to the VV arrow of FIG. FIG. 5A is a perspective view of a fixing plate portion that fixes the solenoid portion, and FIG. 5B is an enlarged view of the mounting hole portion. It is the perspective view which looked at the solenoid valve which concerns on the modification of 1st Embodiment from the pump body side. It is the perspective view which looked at the solenoid valve which concerns on the modification of 1st Embodiment from the solenoid part side.

  Hereinafter, an electromagnetic valve according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, an electromagnetic valve that controls an automatic transmission mounted on a vehicle such as an automobile will be described. Moreover, in the following drawings, in order to make each structure easy to understand, the actual structure may be different from the scale and number in each structure.

  In the drawings, an XYZ coordinate system is appropriately shown as a three-dimensional orthogonal coordinate system. In the XYZ coordinate system, the Z-axis direction is a direction parallel to the other axial direction of the central axis J shown in FIG. The X-axis direction is a direction parallel to the short direction of the solenoid valve shown in FIG. 1, that is, the vertical direction in FIG. The Y-axis direction is a direction orthogonal to both the X-axis direction and the Z-axis direction.

  In the following description, the positive side (+ Z side) in the Z-axis direction is referred to as “rear side”, and the negative side (−Z side) in the Z-axis direction is referred to as “front side”. The rear side and the front side are simply names used for explanation, and do not limit the actual positional relationship and direction. Unless otherwise specified, a direction parallel to the central axis J (Z-axis direction) is simply referred to as “axial direction”, a radial direction centered on the central axis J is simply referred to as “radial direction”, and the central axis J The circumferential direction centered on the axis, that is, the circumference of the central axis J (θ direction) is simply referred to as “circumferential direction”.

  In this specification, “extending in the axial direction” means not only extending in the axial direction (Z-axis direction) but also extending in a direction inclined by less than 45 ° with respect to the axial direction. Including. Further, in this specification, the term “extend in the radial direction” means 45 ° with respect to the radial direction in addition to the case where it extends strictly in the radial direction, that is, the direction perpendicular to the axial direction (Z-axis direction) Including the case of extending in a tilted direction within a range of less than.

[First embodiment]
<Overall configuration>
FIG. 1 is a cross-sectional view of a solenoid valve according to the first embodiment. As shown in FIG. 1, the electromagnetic valve according to the present embodiment includes a solenoid unit 10, a valve body 50, and a fixed plate unit 70. The solenoid unit 10 and the valve body 50 are disposed along the axial direction. The solenoid unit 10 moves the shaft unit 11 by exciting the coil 29. The valve body 50 has a spool 52 that is located on one side (front side) in the axial direction of the solenoid unit 10 and is movable along with the movement of the shaft unit 11. A lower valve body (not shown) is connected to the negative side (lower side) of the valve body 50 in the X-axis direction. The lower valve body has, for example, a plurality of shift valves, accumulators, and input / output ports. The lower valve body regulates pressure oil supplied from a hydraulic pump (not shown) and sends the pressure oil to the valve body. The valve body sends the regulated pressure oil to the automatic transmission via the spool 52.

  The fixed plate portion 70 is located between the solenoid portion 10 and the valve body 50, and fixes the solenoid portion 10 to the valve body 50 via the fixed plate portion 70. Hereinafter, each constituent member will be described in detail.

<Solenoid part 10>
As shown in FIG. 1, the solenoid portion 10 includes a shaft portion 11, a core 17, a yoke 21, a bobbin 25, a coil 29, and a housing 30.

(Housing 30)
FIG. 2 is a perspective view of the housing 30 of the solenoid unit 10 according to the first embodiment. As shown in FIGS. 1 and 2, the housing 30 is made of a magnetic metal material, and has a bottomed cylindrical shape having a bottom portion 30a on the other axial side (rear side). That is, the housing 30 has a bottomed cylindrical shape having a bottom portion 30a that covers the rear side of the cylindrical portion. The housing 30 has a caulking portion 32 that protrudes from one end in the axial direction to one side (front side) in the axial direction. In the present embodiment, three caulking portions 32 are provided at the front end portion of the housing 30 at equal intervals in the circumferential direction. That is, the caulking portion 32 is positioned at an angle of 120 degrees with another caulking portion 32 adjacent to the front side end portion of the housing 30. The caulking portion 32 has a predetermined length in the circumferential direction and has an arc shape.

  The details of the circumferential length Ls, radial length Ts (thickness), and axial length Hs (height) of the caulking portion 32 will be described later.

  A circumferential end 30b on one side (front side) in the axial direction of the housing 30 between the caulking portions 32 adjacent in the circumferential direction extends on the same plane. For this reason, when the caulking portion 32 passes through the mounting hole portions 75a, 75b, and 75c and is bent in the radial direction, the end surface of the peripheral end portion 30b is on the other side (rear side) in the axial direction of the fixed plate portion 70. ) In contact with the surface 70a. The caulking portion 32 is inserted into the attachment holes 75 a, 75 b, 75 c (see FIG. 4 a) and is caulked to fix the housing 30 to the fixed plate portion 70. Details of the mounting holes 75a, 75b, and 75c will be described later.

  FIG. 3 is a cross-sectional view of the solenoid portion corresponding to the VV arrow in FIG. As shown in FIGS. 2 and 3, a notch 35 is provided between the caulking portions 32 adjacent to each other on the front side of the housing 30 in the circumferential direction. The notch 35 has a quadrangular shape when viewed from the radially outer side to the inner side direction. A terminal 26 integrally molded with the bobbin 25 protrudes from the notch 35. The terminal 26 extends radially outward from the front side end of the bobbin 25 and passes through the notch 35, and is located on the radially outer side of the housing 30 and on the rear side of the terminal extension 26a. And a terminal main body portion 26b extending to the rear side connected to the end portion. The terminal body 26b has a terminal hole 26b1 that is open at the rear end and is recessed toward the front. A terminal (not shown) that is electrically connected to the coil 29 is provided in the terminal hole 26b1.

(Shaft 11)
As shown in FIG. 1, the shaft portion 11 includes a plunger 11a and a shaft portion 11b. The plunger 11 a is located on the radially outer side of the shaft portion 11 b and moves in the axial direction with respect to the core 17. The shaft portion 11b is attached to the central axis portion of the plunger 11a.

  In the present embodiment, the shaft portion 11b is made of a metal material, extends through the plunger 11a, and extends from both sides in the axial direction of the plunger 11a. The shaft portion 11 b extending from the plunger 11 a to both sides in the axial direction is supported via a slide bearing 18 inserted in the through hole 17 a in the core 17 and a slide bearing 19 provided in the small diameter hole portion 21 c of the yoke 21. Details of the core 17 and the yoke 21 will be described later.

  The plunger 11 a is fixed to the shaft portion 11 b and moves in the axial direction with respect to the core 17. In the present embodiment, the plunger 11a is made of a magnetic material and is fixed to the central portion in the axial direction of the shaft portion 11b. The plunger 11a is cylindrical and has a through hole 11a1 penetrating in the axial direction. The shaft 11b is passed through the through hole 11a1. For this reason, the plunger 11a and the shaft part 11b are integrated, and the shaft 11b moves with the movement of the plunger 11a.

(Core 17)
The core 17 is located on the radially outer side of the shaft portion 11b. In the present embodiment, the core 17 is made of a magnetic material, and is disposed on the front side of the shaft portion 11 b and fixed in the housing 30. The core 17 includes a disk-shaped large-diameter portion 17b that contacts the inner surface 30c of the housing 30, a small-diameter portion 17c that extends from the rear side surface of the large-diameter portion 17b to the rear side and has a smaller diameter than the large-diameter portion 17b, Have The large diameter portion 17b and the small diameter portion 17c are positioned on the same axis. A radially outer side surface 17c1 of the small diameter portion 17c is fitted and fixed to the inner surface 25a of the bobbin 25. The rear end of the small diameter portion 17c has a convex portion 17c2 whose width in the radial direction becomes narrower toward the rear side. When the coil 29 is energized, the convex portion 17c2 concentrates magnetic lines extending from the convex portion 17c2 to the plunger 11a side, and increases the force for pulling the plunger 11a to the front side.

  A through hole 17a penetrating in the axial direction is provided at the center of the core 17 in the axial direction. The shaft portion 11b is passed through the slide bearing 18 disposed in the through hole 17a. The slide bearing 18 is cylindrical, and the shaft portion 11b is supported by the slide bearing 18 so as to be movable in the axial direction. On the rear side of the small-diameter portion 17c, a housing portion 17c3 that is open on the rear side and is recessed toward the front side is provided. The housing portion 17c3 has a circular shape when viewed from the rear side. The accommodating part 17c3 can insert the front side of the plunger 11a with the movement of the plunger 11a.

  A cylindrical collar 37 is mounted between the rear-side radial outer end of the small-diameter portion 17 c of the core 17 and the front-side radial outer end of the yoke 21. The collar 37 connects the core 17 and the yoke 21 with a gap.

(Yoke 21)
The yoke 21 is located on the radially outer side of the plunger 11a. In the present embodiment, the yoke 21 has a bottomed cylindrical shape centered on the central axis J with the front side opened and the bottom 21a on the rear side. The yoke 21 has a large-diameter hole 21b that accommodates the plunger 11a and a small-diameter hole 21c that is connected to the rear side of the large-diameter hole 21b and has a smaller diameter than the large-diameter hole 21b. The large-diameter hole 21b and the small-diameter hole 21c are circular when viewed from the front side. The inner diameter of the large-diameter hole portion 21b is slightly larger than the outer diameter of the plunger 11a. Therefore, the plunger 11a can move in the axial direction in the large-diameter hole 21b. A cylindrical slide bearing 19 is disposed in the small diameter hole 21c. The shaft portion 11 b is passed through the slide bearing 19. For this reason, the shaft portion 11b extending from both axial sides of the plunger 11a with the plunger 11a in the center is supported by the slide bearings 18 and 19. That is, the shaft portion 11b is movable in the axial direction while being supported at both ends.

(Bobbin 25)
The bobbin 25 covers the radially outer side surface 17 c 1 of the core 17. In the present embodiment, the bobbin 25 is made of resin and covers the radially outer side surfaces 17c1 and 21d of the core 17 and the yoke 21. The bobbin 25 includes a cylindrical portion 25b and flange portions 25c that are provided on both sides in the axial direction of the cylindrical portion 25b and project outward in the radial direction. A coil 29 is wound around the cylindrical portion 25b. The rear flange portion 25c contacts the bottom portion 30a of the housing 30 and the front flange portion 25c contacts the rear surface of the large diameter portion 17b of the core 17. The bobbin 25 around which the coil 29 is wound is integrally molded with resin together with the terminal 26 (see FIG. 3).

(Coil 29)
The coil 29 is wound around the bobbin 25. In the present embodiment, the coil 29 is wound in the circumferential direction along the outer circumferential surface on the radially outer side of the cylindrical portion 25 b of the bobbin 25. Both ends of the coil 29 are electrically connected to terminals provided on the terminal 26 (see FIG. 3). The coil 29 wound around the bobbin 25 is integrally formed with resin together with the terminal 26.

<Fixing plate part 70>
4a is a perspective view of the fixing plate portion 70 for fixing the solenoid portion 10, and FIG. 4b is an enlarged view of the mounting hole portions 75a, 75b, and 75c. As shown in FIGS. 1 and 4a, the fixed plate portion 70 is made of metal and has a rectangular shape extending in the Y-axis direction. The fixed plate portion 70 has a central hole portion 73 that penetrates in the axial direction, mounting hole portions 75a, 75b, and 75c that are positioned radially outside the central hole portion 73 and into which the caulking portion 32 is inserted, and mounting hole portions. A fixing portion 79 that is positioned on the radially outer side of 75a, 75b, and 75c and fixes the fixing plate portion 70 to the valve body 50 via a fixing member 81; The inner diameter of the central hole 73 is larger than the outer shape of the shaft portion 11 b and further larger than the outer shape of the spool 52 provided in the valve body 50.

  Three attachment holes 75a, 75b, and 75c are provided on the outer side in the radial direction of the central hole 73 at equal intervals in the circumferential direction. That is, for example, the attachment hole 75a is positioned at an angle of 120 degrees with another attachment hole 75b adjacent in the circumferential direction. As shown in FIG. 4b, the mounting holes 75a, 75b, 75c are elongated holes that have a predetermined length in the circumferential direction (circumferential length Lh) and are curved in an arc shape in the circumferential direction with respect to the central axis J. It is. When the caulking portions 32 of the solenoid portion 10 are set at unequal intervals, the mounting holes 75a, 75b, and 75c also have unequal intervals in the circumferential direction on the outer side in the radial direction of the central hole 73. Three will be provided. In that case, the caulking portion 32 cannot be inserted into the mounting hole only at a position defined in the circumferential direction of the central hole 73, and mounting at an incorrect position in the circumferential direction of the central hole 73 can be prevented. Become.

  The caulking portion 32 is inserted into the mounting hole portions 75a, 75b, and 75c. Since the attachment hole portions 75a, 75b, and 75c have the same shape, the relationship between the attachment hole portion 75a and the caulking portion 32 will be described below. 2 and 4b, the circumferential length Lh of the attachment hole 75a is longer than the circumferential length Ls of the caulking portion 32. Further, the radial length Th of the attachment hole 75a is longer than the radial length Ts (thickness) of the caulking portion 32. For this reason, the crimping part 32 can be inserted in the attachment hole part 75a. Further, the axial length H (height) of the caulking portion 32 is such that, as shown in FIGS. 1 and 3, the caulking portion 32 passes through the attachment hole portion 75a and is bent in the radial direction. The shaft portion 11b passing through the central hole portion 73 provided in the fixed plate portion 70 has such a length that a gap 83 is generated at the distal end portion of the caulking portion 32. In the present embodiment, the case where three attachment hole portions 75a, 75b, and 75c are provided is shown, but four or more may be provided corresponding to the number of caulking portions 32.

  As shown in FIGS. 1 and 4a, the fixing portion 79 is located on the plus side and the minus side in the X-axis direction with respect to the three mounting holes 75a, 75b, and 75c arranged in the circumferential direction with respect to the central axis J. Two fixing holes 79a are provided. These fixing hole portions 79 a are located on the radially outer side of the housing 30 of the solenoid portion 10. Therefore, when the bolt 81a is used as the fixing member 81, the fixing plate portion is formed by screwing the shaft portion 81a1 of the bolt 81a into the female screw portion 53b provided in the valve body 50 through the fixing hole 79a. 70 can be fixed to the valve body 50. In this case, since the fixing hole 79a is located on the outer side in the radial direction of the housing 30, the housing 30 does not get in the way when the bolt 81a is fastened with a fastening jig, for example, a screwdriver, so that the bolt 81a can be easily fastened. Can be done. The fixing member 81 is not limited to a bolt. The fixing member 81 may be a fixing bracket, a rivet or the like.

<Valve body 50>
As shown in FIG. 1, the valve body 50 is provided with a plurality of oil passages serving as oil passages. Further, a spool hole 51 connected to a plurality of oil passages is provided in the valve body 50. The spool hole 51 penetrates the valve body 50 in the axial direction. A spool 52 is inserted into the spool hole 51. In the present embodiment, four oil passages 55 are connected to the spool hole 51.

  The spool 52 has a columnar shape, and includes a large diameter portion 52a having an outer diameter substantially equal to the inner diameter of the spool hole 51, and a small diameter portion 52b having an outer diameter smaller than the large diameter portion 52a. As the material of the spool 52, for example, a metal such as aluminum having a magnetic permeability different from that of oil is used.

  A blocking member 57 that closes the opening on the front side of the spool hole 51 is inserted into the end portion on the one side (front side) in the axial direction of the spool hole 51. A compression spring 60 is disposed between the closing member 57 and the front side end of the spool 52. For this reason, the spool 52 is biased to the rear side by the compression spring 60.

  The valve body 50 has an attachment portion 53 that fixes the fixing portion 79 of the fixing plate portion 70. In the present embodiment, the attachment portion 53 is positioned on the plus side and the minus side in the X-axis direction on the rear side of the valve body 50. The attachment portion 53 has a flat portion 53a extending in the X-axis direction at the rear end portion. The flat surface portion 53a is provided with a female screw portion 53b that extends from the position facing the fixing hole 79a of the fixing plate portion 70 to the front side and can be screwed into the bolt 81a.

  In the valve body 50, the fixed plate portion 70 is fixed to the mounting portion 53, and the fixed plate portion 70 side is opened and recessed toward one side in the axial direction, and the crimped portion 32 is crimped to the fixed plate portion 70. It has the accommodating part 62 which accommodates. In this embodiment, the accommodating part 62 is circular when viewed from the rear side. The inner diameter of the accommodating portion 62 is larger than the outer diameter of the housing 30. Moreover, the axial direction depth of the accommodating part 62 is larger than the axial direction length of the crimping part 32 bent in the central axis direction. For this reason, the caulking part 32 can be accommodated in the accommodating part 62 without the caulking part 32 that is bent coming into contact with the accommodating part 62.

<Action and effect of solenoid valve>
Next, the operation and effect of the electromagnetic valve 1 will be described. As shown in FIG. 1, when the coil 29 of the solenoid unit 10 of the solenoid valve 1 is excited, the plunger 11a is attracted to the core 17 side. For this reason, the shaft part 11b which fixes the plunger 11a moves to the front side together with the plunger 11a. When the shaft portion 11b moves, the shaft portion 11b moves against the bias of the compression spring 60. Accordingly, the spool 52 that contacts the shaft portion 11b moves to the front side. On the other hand, when the coil 29 of the solenoid unit 10 is in a non-excited state, the plunger 11 a loses the attractive force from the core 17. For this reason, the spool 52 moves to the front side by the urging force of the compression spring 60 directed to the front side. As the spool 52 moves, the shaft portion 11b and the plunger 11a of the solenoid portion 10 also move to the front side.

(1) Here, in the housing 30 of the solenoid valve 1 according to the present embodiment, the caulking portion 32 passes through the mounting holes 75a, 75b, and 75c and is bent in the radial direction. Fixed to. Here, when the caulking portion 32 is caulked to the fixed plate portion 70, there is no obstacle such as the valve body 50 on the side where the caulking portion 32 protrudes from the fixed plate portion 70. For this reason, the crimping jig | tool which crimps the crimping part 32 to the fixed board part 70 can crimp the crimping part 32, without being obstructed by an obstruction. For this reason, the workability | operativity of a crimping operation | work can be improved.

(2) Moreover, when the plunger 11a moves in the axial direction with respect to the core 17, the shaft portion 11b attached to the central axis portion of the plunger 11a can be moved in the axial direction.

(3) Further, since the caulking portion 32 is tilted toward the shaft portion 11 and the housing 30 is fixed to the fixing plate portion 70, the caulking portion 32 is tilted radially outward with respect to the shaft portion 11. As compared with the above, the position of the fixing portion 79 can be arranged at a position adjacent to the housing 30 of the solenoid portion 10. For this reason, the enlargement of the valve body 50 can be suppressed.

(4) Further, each of the caulking portion 32 and the mounting hole portions 75a, 75b, and 75c is provided in three or more and is equally arranged in the circumferential direction. For this reason, if the crimping part 32 is crimped with respect to the fixed plate part 70, a crimping force will act equally toward the axial part 11 side. Therefore, the shift | offset | difference (eccentricity) of the axial part 11 with respect to the central axis of the spool 52 of the valve body 50 can be suppressed.

(5) Further, as the caulking portion 32 penetrates through the mounting holes 75a, 75b, and 75c, as shown in FIG. 1 and FIG. The end surface of the portion 30 b contacts the side surface 70 a on the other axial side of the fixed plate portion 70. For this reason, when the caulking portion 32 is caulked to the fixed plate portion 70, an increase in the inclination of the housing 30 with respect to the fixed plate portion 70 can be suppressed.

(6) Moreover, the valve body 50 has the attaching part 53 to which the fixing part 79 of the fixing plate part 70 is fixed, as shown in FIG. Further, the valve body 50 includes an accommodating portion 62 that accommodates the caulking portion 32 that is crimped to the fixing plate portion 70 in a state where the fixing portion 79 is fixed to the attachment portion 53. For this reason, in the state where the fixing portion 79 is attached to the attachment portion 53, the caulking portion 32 protruding from the fixing plate portion 70 is accommodated in the accommodating portion 62, so that the caulking portion 32 contacts the valve body 50. There is no fear. Therefore, the fixing portion 79 can be firmly fixed to the attachment portion 53.

[Modification of First Embodiment]
(Modification in which a plurality of hole groups 72 are provided)
In the electromagnetic valve 1 according to the first embodiment shown in FIG. 1, one solenoid part 10 is fixed to the valve body 50 via a fixing plate part 70. However, it is not limited to this structure, for example, as shown in FIG.5 and FIG.6, the some solenoid part 10 can also be fixed to the fixed board part 70 (modification 1).

  FIG. 5 is a perspective view of the electromagnetic valve 1 according to a modification of the first embodiment as viewed from the valve body 50 side. FIG. 6 is a perspective view of the electromagnetic valve 1 according to a modification of the first embodiment as viewed from the solenoid unit 10 side. The fixed plate portion 70 extends in a direction orthogonal to the central axis J. Further, as shown in FIG. 4a, the fixed plate portion 70 includes a hole portion group 72 including a central hole portion 73 and attachment hole portions 75a, 75b, and 75c provided in the fixed plate portion 70 with respect to one solenoid portion 10. Have multiple. The plurality of hole groups 72 are provided in the fixed plate portion 70 with intervals along the direction in which the fixed plate portion 70 extends. The fixed plate portion 70 includes a plurality of solenoid portions 10 in which the solenoid portion 10 is fixed to each of the plurality of hole groups 72. The fixed plate portion 70 to which the plurality of solenoid portions 10 are fixed is fixed to the valve body 50 to complete the electromagnetic valve 1 (see FIGS. 5 and 6).

  In this modification, the plurality of hole groups 72 are provided in the fixed plate portion 70 with intervals along the direction in which the fixed plate portion 70 extends. Here, when the caulking portion 32 is caulked to the fixed plate portion 70, there is no obstacle such as the valve body 50 on the side where the caulking portion 32 protrudes from the fixed plate portion 70. For this reason, the crimping jig | tool which crimps the crimping part 32 to the fixed board part 70 can crimp the crimping part 32, without being obstructed by an obstruction. For this reason, it is possible to provide the solenoid valve 1 with good workability in attaching the plurality of solenoid parts 10 to the fixed plate part 70.

(Modification regarding arrangement of mounting holes in adjacent hole group)
As shown in FIG. 4 a, a plurality of mounting hole portions 75 a, 75 b, 75 c of the hole group 72 are provided on the radially outer side of the central hole portion 73 provided in the fixed plate portion 70 with a circumferential interval. . In addition, a pair of a plurality of mounting hole portions 75 a, 75 b, 75 c of one hole group 72 provided adjacent to the fixed plate portion 70 is arranged in a direction intersecting with the extending direction of the fixed plate portion 70. One attachment hole 75c of the plurality of attachment holes 75a, 75b, 75c of the other hole group 72 may be located in the region 78 between the attachment holes 75a, 75b. In the present embodiment, eight hole groups 72 are provided in the fixed plate portion 70 (Modification 2).

  In this modification, one attachment of a plurality of attachment holes 75a, 75b, 75c of the other hole group 72 is provided in a region 78 between the pair of attachment holes 75a, 75b of one hole group 72. The hole 75b is located. For this reason, the enlargement of the solenoid valve 1 can be suppressed by bringing the adjacent housings 30 close to each other.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary. These embodiments and modifications thereof are included in the scope and gist of the invention, and at the same time, are included in the names of claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Solenoid valve 10 Solenoid part 11 Shaft part 11a Plunger 11b Shaft part 17 Core 25 Bobbin 29 Coil 30 Housing 30a Bottom part 30b Peripheral wall part 32 Clamping part 50 Valve body 52 Spool 53 Mounting part 62 Storage part 70 Fixing plate part 70a Surface 72 Hole Part group 73 Central hole 75a, 75b, 75c Mounting hole 78 Region 79 Fixed part

Claims (8)

A solenoid that moves the shaft by exciting the coil;
A valve body that is located on one side in the axial direction of the solenoid part and has a spool that can move with the movement of the shaft part;
A fixing plate portion positioned between the solenoid portion and the valve body, and fixing the solenoid portion to the valve body;
Have
The solenoid part is
The shaft portion;
A core located on the radially outer side of the shaft portion;
A bobbin disposed radially outside the core;
The coil wound around the bobbin;
A bottomed cylindrical housing that houses the shaft, the core, the bobbin, and the coil, and has a bottom on the other side in the axial direction;
Have
The housing has a caulking portion that protrudes from one end in the axial direction to one side in the axial direction,
The fixed plate portion is
A central hole penetrating in the axial direction;
A mounting hole that is located radially outside the central hole and into which the crimped portion is inserted;
A fixing portion that is located on the radially outer side of the mounting hole portion and fixes the fixing plate portion to the valve body via a fixing member;
Have
The housing is an electromagnetic valve that is fixed to the fixed plate portion by the caulking portion passing through the attachment hole portion and being bent in a radial direction. The shaft portion is
A plunger located radially outside the shaft portion and moving in the axial direction relative to the core;
A shaft portion attached to a central axis portion of the plunger;
The solenoid valve according to claim 1, comprising: 3. The solenoid valve according to claim 1, wherein the caulking portion protruding from the attachment hole portion is tilted toward the shaft portion side and the housing is fixed to the fixing plate portion. The solenoid valve according to any one of claims 1 to 3, wherein each of the caulking portion and the attachment hole portion is provided with three or more, and is equally disposed in a circumferential direction. The circumferential end portion on one side in the axial direction of the housing between the caulking portions adjacent to each other in the circumferential direction is such that the caulking portion penetrates the mounting hole portion, so that the end surface of the circumferential end portion is the fixing plate portion. The electromagnetic valve according to claim 4, wherein the electromagnetic valve is in contact with the other surface in the axial direction. The valve body has an attachment portion to which the fixing portion of the fixing plate portion is fixed,
The valve body accommodates the caulking portion that is open on the fixing plate portion side and is depressed toward one side in the axial direction and is caulked to the fixing plate portion in a state where the fixing portion is fixed to the mounting portion. The solenoid valve according to any one of claims 1 to 5, further comprising a housing portion. The fixed plate portion extends in a direction orthogonal to the axial direction,
The fixed plate portion is
A plurality of hole groups each including the central hole portion and the attachment hole portion provided in the fixed plate portion with respect to one solenoid portion;
The plurality of hole groups are provided in the fixed plate portion with an interval along a direction in which the fixed plate portion extends,
The solenoid valve according to any one of claims 1 to 6, wherein the fixed plate portion includes a plurality of solenoid portions in which the solenoid portion is fixed to each of the plurality of hole groups. A plurality of the mounting hole portions of the hole group are provided at intervals in the circumferential direction on the radially outer side of the central hole portion provided in the fixed plate portion,
A region between a pair of mounting holes arranged in a direction intersecting with the direction in which the fixing plate part extends among a plurality of mounting hole parts of the one hole group provided adjacent to the fixing plate part. The solenoid valve according to claim 7, wherein one of the plurality of mounting hole portions of the other hole group is positioned inside.

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