Electromagnetic valve manifold

Abstract

To improve an assembling property of an electromagnetic manifold.SOLUTION: A solenoid valve 11 is provided with a first projecting portion 56 and a second projecting portion 66. A base portion 30 is provided with a first recessed portion 87 guiding the first projecting portion 56, and a second recessed portion 97 guiding the second projecting portion 66. A first solenoid valve side connector 55 is inserted into a first insertion port 43 without interfering with a periphery of the first insertion port 43 in the base portion 30, and is connected to a first base side connector portion 80, as the first projecting portion 56 is guided to the first recessed portion 87 and the second projecting portion 66 is guided to the second recessed portion 97. A second solenoid valve side connector portion 65 is inserted into a second insertion port 44 without interfering a periphery of the second insertion port 44 in the base portion 30, and is connected to a second base side connector portion 90, as the first projecting portion 56 is guided to the first recessed portion 87 and the second projecting portion 66 is guided to the second recessed portion 97.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a solenoid valve manifold.

Background Art

[0002] For example, as disclosed in Patent Document 1, a solenoid valve manifold includes a solenoid valve, a control unit, and a base unit. The solenoid valve has a solenoid part. The solenoid valve has a solenoid valve side connector part. The solenoid valve side connector part is electrically connected to the solenoid part. The control unit has a circuit board. The circuit board controls the drive of the solenoid valve. The base unit has a control unit. A base side connector part is provided in the base unit. The base side connector part is connected to the solenoid valve side connector part and electrically connects the solenoid valve side connector part and the circuit board. The base unit has an insertion port. The insertion port arranges the base side connector part inside and the solenoid valve side connector part is inserted therein. Then, when the solenoid valve side connector part inserted into the insertion port is connected to the base side connector part, the solenoid valve side connector part and the circuit board are electrically connected via the base side connector part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in such a solenoid valve manifold, when connecting the solenoid valve side connector part to the base side connector part, the solenoid valve side connector part may interfere with the periphery of the insertion port in the base unit. Therefore, it is desired to improve the assemblability of the solenoid valve manifold.

Means for Solving the Problems

[0005] The solenoid valve manifold for solving the above problems includes a solenoid valve having a solenoid part, a control unit having a circuit board for controlling the drive of the solenoid valve, and a base part having the control unit. The solenoid valve has a solenoid valve side connector part electrically connected to the solenoid part. The base part is provided with a base side connector part to which the solenoid valve side connector part is connected and which electrically connects the solenoid valve side connector part and the circuit board. The base part is a solenoid valve manifold that arranges the base side connector part inside and has an insertion port into which the solenoid valve side connector part is inserted. One of the solenoid valve and the base part is provided with a convex part, and the other of the solenoid valve and the base part is provided with a concave part for guiding the convex part in the same direction as the insertion direction of the solenoid valve side connector part with respect to the insertion port. When the convex part is guided by the concave part, the solenoid valve side connector part is inserted into the insertion port without interfering with the periphery of the insertion port in the base part and is connected to the base side connector part.

[0006] In the above solenoid valve manifold, the solenoid valve side connector part may have a conductive member electrically connected to the solenoid part and a cylindrical part that surrounds the conductive member and into which the base side connector part is inserted inside. When the convex part is guided by the concave part, the cylindrical part is inserted into the insertion port without interfering with the base side connector part, and the conductive member is connected to the base side connector part.

[0007] In the above solenoid valve manifold, the mouth of the concave part is wider than the back side in the insertion direction of the convex part with respect to the concave part. When the convex part is guided to a position deeper than the mouth of the concave part with respect to the concave part, the solenoid valve side connector part may be positioned at a position where the cylindrical part does not interfere with the base side connector part.

[0008] In the electromagnetic valve manifold, the tip of the convex portion in the insertion direction with respect to the concave portion is thinner than the portion on the base end side of the tip, and when the portion on the base end side of the convex portion in the electromagnetic valve side connector portion is guided with respect to the concave portion, it is preferable that the cylindrical portion is positioned at a position where it does not interfere with the base side connector portion.

[0009] In the electromagnetic valve manifold, the electromagnetic valve is fixed to the base portion by bolts, a bolt insertion hole through which the bolts are inserted is formed in the electromagnetic valve, a female screw hole into which the bolts are screwed is formed in the base portion, a gasket is interposed between the electromagnetic valve and the base portion, and it is preferable that the relative positions of the bolt insertion hole and the female screw hole coincide with each other as the convex portion is guided into the concave portion.

[0010] In the electromagnetic valve manifold, it is preferable that the concave portion has a holding portion for holding the convex portion.

Advantages of the Invention

[0011] According to this invention, it is possible to improve the assemblability of the electromagnetic valve manifold.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiment for Carrying Out the Invention

[0013] Hereinafter, an embodiment in which a solenoid valve manifold is embodied will be described with reference to FIGS. 1 to 9. <Basic Configuration of Solenoid Valve Manifold> As shown in FIG. 1, the solenoid valve manifold 10 includes a solenoid valve 11. The solenoid valve 11 includes a main valve part 12, a first pilot solenoid valve 50, and a second pilot solenoid valve 60. The solenoid valve 11 is a pilot-type solenoid valve of double solenoid type. Further, the solenoid valve manifold 10 includes a control unit 40 and a base part 30.

[0014] The main valve part 12 has a valve casing 13. The valve casing 13 is in the shape of a long rectangular block. The valve casing 13 has a valve body 14, a first connection block 15, and a second connection block 16. The valve body 14 is in the shape of a long rectangular block. The first connection block 15 is connected to the first end in the longitudinal direction of the valve body 14. The second connection block 16 is connected to the second end in the longitudinal direction of the valve body 14. The valve body 14 has a main body facing surface 14a facing the base part 30.

[0015] The valve casing 13 has a spool valve hole 17. The spool valve hole 17 is formed in the valve body 14. The spool valve hole 17 is in the shape of a circular hole. The spool valve hole 17 extends in the longitudinal direction of the valve body 14. The first end of the spool valve hole 17 opens to the first end face in the longitudinal direction of the valve body 14. The second end of the spool valve hole 17 opens to the second end face in the longitudinal direction of the valve body 14. Therefore, the spool valve hole 17 penetrates the valve body 14 in the longitudinal direction.

[0016] The solenoid valve 11 has a spool valve 18. The spool valve 18 is accommodated in the spool valve hole 17. The spool valve 18 is accommodated in the spool valve hole 17 with the axial direction of the spool valve 18 being coincident with the axial direction of the spool valve hole 17. The spool valve 18 is accommodated in the spool valve hole 17 so as to be reciprocally movable therein.

[0017] The solenoid valve 11 has a supply port P, a first output port A, a second output port B, a first discharge port R1, and a second discharge port R2. Therefore, the solenoid valve 11 of the present embodiment is a five-port solenoid valve. The supply port P, the first output port A, the second output port B, the first discharge port R1, and the second discharge port R2 are formed in the valve body 14. The supply port P, the first output port A, the second output port B, the first discharge port R1, and the second discharge port R2 communicate with the spool valve hole 17 respectively.

[0018] The first discharge port R1, the first output port A, the supply port P, the second output port B, and the second discharge port R2 are arranged in this order along the longitudinal direction of the valve body 14 from the first end to the second end. The first ends of the supply port P, the first output port A, the second output port B, the first discharge port R1, and the second discharge port R2 communicate with the spool valve hole 17 respectively. The second ends of the supply port P, the first output port A, the second output port B, the first discharge port R1, and the second discharge port R2 open to the main body facing surface 14a of the valve body 14.

[0019] The solenoid valve 11 has a first piston 19 and a second piston 20. The first piston 19 is disc-shaped. The first piston 19 is connected to the first end of the spool valve 18. The first piston 19 moves integrally with the spool valve 18. The second piston 20 is disc-shaped. The second piston 20 is connected to the second end of the spool valve 18. The second piston 20 moves integrally with the spool valve 18.

[0020] A circular hole-shaped first piston accommodation recess 21 is formed in the first connection block 15. The first piston 19 is reciprocally accommodated in the first piston accommodation recess 21. And the first pilot pressure acting chamber 22 is partitioned by the first piston accommodation recess 21 and the first piston 19. Pilot fluid is supplied and discharged to / from the first pilot pressure acting chamber 22.

[0021] A circular hole-shaped second piston accommodation recess 23 is formed in the second connection block 16. The second piston 20 is reciprocally accommodated in the second piston accommodation recess 23. And the second pilot pressure acting chamber 24 is partitioned by the second piston accommodation recess 23 and the second piston 20. Pilot fluid is supplied and discharged to / from the second pilot pressure acting chamber 24.

[0022] The base portion 30 has a manifold block 31. The manifold block 31 is in the shape of a long rectangular block. The manifold block 31 has a mounting surface 31a. The solenoid valve 11 is mounted on the mounting surface 31a. The longitudinal direction of the manifold block 31 coincides with the longitudinal direction of the valve casing 13.

[0023] The manifold block 31 has a supply passage 32, a first output passage 33, a second output passage 34, a first discharge passage 35, and a second discharge passage 36. The supply passage 32, the first output passage 33, the second output passage 34, the first discharge passage 35, and the second discharge passage 36 open to the mounting surface 31a.

[0024] The end portion on the mounting surface 31a side in the supply flow path 32 communicates with the supply port P. The end portion on the mounting surface 31a side in the first output flow path 33 communicates with the first output port A. The end portion on the mounting surface 31a side in the second output flow path 34 communicates with the second output port B. The end portion on the mounting surface 31a side in the first discharge flow path 35 communicates with the first discharge port R1. The end portion on the mounting surface 31a side in the second discharge flow path 36 communicates with the second discharge port R2.

[0025] The end portion on the side opposite to the mounting surface 31a in the supply flow path 32 is connected to a fluid supply source (not shown) via, for example, piping or the like. The end portion on the side opposite to the mounting surface 31a in the first output flow path 33 and the end portion on the side opposite to the mounting surface 31a in the second output flow path 34 are respectively connected to fluid pressure devices (not shown) via, for example, piping or the like. The end portion on the side opposite to the mounting surface 31a in the first discharge flow path 35 and the end portion on the side opposite to the mounting surface 31a in the second discharge flow path 36 communicate with the atmosphere via, for example, piping or the like.

[0026] The solenoid valve manifold 10 includes an annular gasket 37. The gasket 37 is, for example, in a thin plate shape. The gasket 37 is interposed between the valve body 14 of the solenoid valve 11 and the manifold block 31. Therefore, the gasket 37 is interposed between the solenoid valve 11 and the base portion 30. The gasket 37 seals the space between the valve body 14 of the solenoid valve 11 and the manifold block 31.

[0027] As shown in FIG. 2, the solenoid valve 11 is fixed to the base portion 30 by bolts 38. Bolt insertion holes 38h through which the bolts 38 are inserted are formed in the valve casing 13 of the solenoid valve 11. Two bolt insertion holes 38h are formed in the valve casing 13. In FIG. 2, only one bolt insertion hole 38h is shown for the sake of illustration.

[0028] The base portion 30 is formed with female screw holes 39. Bolts 38 are screwed into the female screw holes 39. Two female screw holes 39 are formed on the mounting surface 31a of the manifold block 31. Each female screw hole 39 is formed around the gasket 37 on the mounting surface 31a of the manifold block 31. And each bolt 38 inserted through each bolt insertion hole 38h is screwed into each female screw hole 39, whereby the solenoid valve 11 is fixed to the base portion 30 in a state of being mounted on the mounting surface 31a.

[0029] As shown in FIG. 1, the control unit 40 is built into the manifold block 31. Therefore, the base portion 30 has the control unit 40. The control unit 40 has a circuit board 41. Power is supplied to the circuit board 41 from an external control device such as a programmable logic controller (PLC) (not shown), for example. The circuit board 41 is built into the manifold block 31. The circuit board 41 controls the driving of each of the first pilot solenoid valve 50 and the second pilot solenoid valve 60. Therefore, the circuit board 41 controls the driving of the solenoid valve 11.

[0030] The solenoid valve 11 has a first solenoid portion 51 and a second solenoid portion 61 as solenoid portions. The first pilot solenoid valve 50 has the first solenoid portion 51. The first pilot solenoid valve 50 supplies and discharges pilot fluid to and from the first pilot pressure working chamber 22. When a voltage is applied from the circuit board 41 to the first solenoid portion 51, the first pilot solenoid valve 50 supplies compressed fluid from a fluid supply source (not shown) to the first pilot pressure working chamber 22 as pilot fluid. On the other hand, when the application of the voltage from the circuit board 41 to the first solenoid portion 51 is stopped, the first pilot solenoid valve 50 stops the supply of the compressed fluid from the fluid supply source to the first pilot pressure working chamber 22. And the first pilot solenoid valve 50 discharges the pilot fluid in the first pilot pressure working chamber 22 to the atmosphere.

[0031] The second pilot solenoid valve 60 has a second solenoid section 61. The second pilot solenoid valve 60 supplies and discharges pilot fluid to and from the second pilot pressure chamber 24. When a voltage is applied from the circuit board 41 to the second solenoid section 61, the second pilot solenoid valve 60 supplies compressed fluid from the fluid supply source to the second pilot pressure chamber 24 as pilot fluid. On the other hand, when the application of voltage from the circuit board 41 to the second solenoid section 61 is stopped, the second pilot solenoid valve 60 stops the supply of compressed fluid from the fluid supply source to the second pilot pressure chamber 24. Then, the second pilot solenoid valve 60 discharges the pilot fluid in the second pilot pressure chamber 24 to the atmosphere.

[0032] The spool valve 18 is switchable between a first position and a second position. For example, assume that a voltage is being applied from the circuit board 41 to the first solenoid section 51 and the application of voltage from the circuit board 41 to the second solenoid section 61 has been stopped. Then, the first pilot solenoid valve 50 supplies compressed fluid from the fluid supply source to the first pilot pressure chamber 22 as pilot fluid. On the other hand, the second pilot solenoid valve 60 discharges the pilot fluid in the second pilot pressure chamber 24 to the atmosphere. As a result, the spool valve 18 moves toward the second piston accommodation recess 23. Consequently, the spool valve 18 switches to the first position where the supply port P communicates with the first output port A and the second output port B communicates with the second discharge port R2. Also, when the spool valve 18 switches to the first position, the connection between the supply port P and the second output port B is blocked, and the connection between the first output port A and the first discharge port R1 is blocked. Thereby, the fluid supplied to the supply port P is output to the fluid pressure device via the first output port A and the first output flow path 33. Then, the pressure fluid from the fluid pressure device is discharged to the outside from the second discharge flow path 36 via the second output flow path 34, the second output port B, and the second discharge port R2.

[0033] Also, for example, assume that the application of voltage from the circuit board 41 to the first solenoid section 51 is stopped, and the application of voltage from the circuit board 41 to the second solenoid section 61 is being performed. Then, the compressed fluid from the fluid supply source is supplied as pilot fluid to the second pilot pressure chamber 24 by the second pilot solenoid valve 60. On the other hand, the pilot fluid in the first pilot pressure chamber 22 is discharged to the atmosphere by the first pilot solenoid valve 50. As a result, the spool valve 18 moves toward the first piston housing recess 21. As a result, the spool valve 18 switches to the second position where the supply port P communicates with the second output port B and the first output port A communicates with the first discharge port R1. Further, when the spool valve 18 switches to the second position, the connection between the supply port P and the first output port A is blocked, and the connection between the second output port B and the second discharge port R2 is blocked. As a result, the fluid supplied to the supply port P is output to the fluid pressure device via the second output port B and the second output flow path 34. And the pressure fluid from the fluid pressure device is discharged to the outside from the first discharge flow path 35 via the first output flow path 33, the first output port A, and the first discharge port R1.

[0034] In this way, the supply and discharge of the pilot fluid to and from the first pilot pressure chamber 22 in the first pilot solenoid valve 50 and the supply and discharge of the pilot fluid to and from the second pilot pressure chamber 24 in the second pilot solenoid valve 60 are performed. Thereby, the spool valve 18 reciprocates within the spool valve hole 17 between the first position and the second position. And by switching the spool valve 18 between the first position and the second position, the communication between the ports is switched. Therefore, the main valve section 12 switches the communication between a plurality of ports by supplying and discharging the pilot fluid to and from the first pilot pressure chamber 22 and the second pilot pressure chamber 24 respectively. In FIG. 1, a state where the spool valve 18 is located at the second position is shown.

[0035] The first pilot solenoid valve 50 and the second pilot solenoid valve 60 are arranged side by side in an integrated state with each other. Specifically, the first pilot solenoid valve 50 and the second pilot solenoid valve 60 are located on the side opposite to the valve body 14 in the first connection block 15. The first pilot solenoid valve 50 and the second pilot solenoid valve 60 are arranged side by side with respect to the first connection block 15. The first pilot solenoid valve 50 and the second pilot solenoid valve 60 are integrated with the first connection block 15. Therefore, the first pilot solenoid valve 50 and the second pilot solenoid valve 60 are integrally provided on the main valve portion 12.

[0036] The solenoid valve 11 has a protruding portion 25. The protruding portion 25 is a portion where a part of the first pilot solenoid valve 50 and a part of the second pilot solenoid valve 60 protrude toward the base portion 30 side from the main body facing surface 14a of the valve body 14 in the solenoid valve 11.

[0037] As shown in FIG. 2, the protruding portion 25 has a first side surface 25a and a second side surface 25b. The first side surface 25a and the second side surface 25b are side surfaces respectively located in the juxtaposition direction of the first pilot solenoid valve 50 and the second pilot solenoid valve 60 in the protruding portion 25. The first side surface 25a is the side surface on the first pilot solenoid valve 50 side. The second side surface 25b is the side surface on the second pilot solenoid valve 60 side. The first side surface 25a and the second side surface 25b protrude toward the base portion 30 side from the main body facing surface 14a.

[0038] <Solenoid valve side connector portion> As shown in FIG. 3, the solenoid valve 11 has a first solenoid valve side connector portion 55 and a second solenoid valve side connector portion 65 as solenoid valve side connector portions. The first pilot solenoid valve 50 has the first solenoid valve side connector portion 55. The first solenoid valve side connector portion 55 has a first conductive member 52 as a conductive member and a first cylindrical portion 53 as a cylindrical portion. The first conductive member 52 is electrically connected to the first solenoid portion 51. The first pilot solenoid valve 50 has two first conductive members 52. One of the two first conductive members 52 constitutes a positive electrode line, and the other of the two first conductive members 52 constitutes a negative electrode line. Each first conductive member 52 is, for example, columnar.

[0039] The first cylindrical portion 53 surrounds the two first conductive members 52. Specifically, the first cylindrical portion 53 surrounds the tip portions, which are the ends of the two first conductive members 52 on the side opposite to the first solenoid portion 51. The first cylindrical portion 53 is cylindrical. The tip of each first conductive member 52 is located inside the first cylindrical portion 53. The axial direction of the first cylindrical portion 53 is the same as the extending direction of the tip portions of the respective first conductive members 52. The first pilot solenoid valve 50 is arranged with respect to the base portion 30 such that the opening of the first cylindrical portion 53 faces the base portion 30 side. Therefore, the tip portions of the respective first conductive members 52 face the base portion 30 side. Each first conductive member 52 and the first cylindrical portion 53 protrude from the front end surface of the protruding portion 25.

[0040] A first mounting groove 53a is formed on the outer peripheral surface of the first cylindrical portion 53. The first mounting groove 53a is annular. A first lip packing 54 is mounted in the first mounting groove 53a. The first lip packing 54 is made of rubber. The first lip packing 54 is annular.

[0041] The second pilot solenoid valve 60 has a second solenoid valve side connector portion 65. The second solenoid valve side connector portion 65 has a second conductive member 62 as a conductive member and a second cylindrical portion 63 as a cylindrical portion. The second conductive member 62 is electrically connected to the second solenoid portion 61. The second pilot solenoid valve 60 has two second conductive members 62. One of the two second conductive members 62 constitutes a positive electrode line, and the other of the two second conductive members 62 constitutes a negative electrode line. Each second conductive member 62 is, for example, columnar.

[0042] The second cylindrical portion 63 surrounds the two second conductive members 62. Specifically, the second cylindrical portion 63 surrounds the tip portions, which are the ends of the two second conductive members 62 on the side opposite to the second solenoid portion 61. The second cylindrical portion 63 is cylindrical. The tip of each second conductive member 62 is located inside the second cylindrical portion 63. The axial direction of the second cylindrical portion 63 is the same as the extending direction of the tip portions of the second conductive members 62. The second pilot solenoid valve 60 is arranged with respect to the base portion 30 such that the opening of the second cylindrical portion 63 faces the base portion 30 side. Therefore, the tip portions of the second conductive members 62 face the base portion 30 side. Each second conductive member 62 and the second cylindrical portion 63 protrude from the tip surface of the protruding portion 25.

[0043] The axial direction of the second cylindrical portion 63 is the same as the axial direction of the first cylindrical portion 53. And the extending direction of the tip portions of the second conductive members 62 is the same as the extending direction of the tip portions of the first conductive members 52. The first cylindrical portion 53 and the second cylindrical portion 63 are arranged side by side in the side-by-side arrangement direction of the first pilot solenoid valve 50 and the second pilot solenoid valve 60. Therefore, the side-by-side arrangement direction of the first solenoid valve side connector portion 55 and the second solenoid valve side connector portion 65 coincides with the side-by-side arrangement direction of the first pilot solenoid valve 50 and the second pilot solenoid valve 60.

[0044] On the outer peripheral surface of the second cylindrical portion 63, a second mounting groove 63a is formed. The second mounting groove 63a is annular. A second lip packing 64 is mounted in the second mounting groove 63a. The second lip packing 64 is made of rubber. The second lip packing 64 is annular.

[0045] <Base side connector portion> The solenoid valve manifold 10 includes a connector member 70. The connector member 70 is provided on the base portion 30. The connector member 70 has a base portion 71. Further, the connector member 70 has a first base side connector portion 80 and a second base side connector portion 90 as base side connector portions. Accordingly, on the base portion 30, a first base side connector portion 80 and a second base side connector portion 90 as base side connector portions are provided. The connector member 70 is formed by integrating the first base side connector portion 80 and the second base side connector portion 90 with the base portion 71.

[0046] As shown in FIG. 4, the base portion 71 is flat plate-shaped. The base portion 71 is thin plate-shaped. The base portion 71 is made of resin. In plan view, the base portion 71 is rectangular plate-shaped. The base portion 71 has a through hole 72. The through hole 72 penetrates the base portion 71 in the thickness direction. The through hole 72 is located at the center of the base portion 71. In plan view, the through hole 72 has a rectangular hole shape. The longitudinal direction of the through hole 72 coincides with the longitudinal direction of the base portion 71.

[0047] As shown in FIG. 3, the first base-side connector portion 80 has a first terminal housing portion 81 and a first connection terminal 82. The first terminal housing portion 81 is cylindrical and projects from the base portion 71. The first terminal housing portion 81 has two first terminal housing chambers 83. Each of the first terminal housing chambers 83 is arranged side by side in a direction orthogonal to the axial direction of the first terminal housing portion 81. Both of the first terminal housing chambers 83 are separated by a first partition wall 84 which is a part of the first terminal housing portion 81. Each first terminal housing chamber opens to the surface of the base portion 71 on the side opposite to the first terminal housing portion 81 through each first terminal insertion hole 85 formed in the base portion 71. Further, two first conductive member insertion holes 86 are formed in the tip surface of the first terminal housing portion 81. Each first terminal housing chamber 83 opens to the tip surface of the first terminal housing portion 81 through each first conductive member insertion hole 86.

[0048] The first base-side connector portion 80 has two first connection terminals 82. Each of the first connection terminals 82 is housed in each of the first terminal housing chambers 83. Each first conductive member 52 inserted into each first terminal housing chamber 83 through each first conductive member insertion hole 86 can be inserted and connected to each first connection terminal 82. Therefore, each first connection terminal 82 is housed in each first terminal housing chamber 83 so that each first conductive member 52 inserted into each first terminal housing chamber 83 through each first conductive member insertion hole 86 can be inserted and connected. In this way, each first conductive member 52 is connected to the first base-side connector portion 80.

[0049] Further, the end portion of each first connection terminal 82 on the side opposite to the first conductive member 52 is electrically connected to the circuit board 41 through each first terminal insertion hole 85. Therefore, each first connection terminal 82 electrically connects each first conductive member 52 and the circuit board 41. Therefore, the first base-side connector portion 80 is connected to the first solenoid valve-side connector portion 55 and electrically connects the first solenoid valve-side connector portion 55 and the circuit board 41.

[0050] The second base-side connector portion 90 has a second terminal housing portion 91 and a second connection terminal 92. The second terminal housing portion 91 is cylindrical and protrudes from the base portion 71. The second terminal housing portion 91 has two second terminal housing chambers 93. Each of the second terminal housing chambers 93 is arranged side by side in a direction orthogonal to the axial direction of the second terminal housing portion 91. Both of the second terminal housing chambers 93 are separated by a second partition wall 94 which is a part of the second terminal housing portion 91. Each second terminal housing chamber opens to the surface of the base portion 71 on the side opposite to the second terminal housing portion 91 through each second terminal insertion hole 95 formed in the base portion 71. Further, two second conductive member insertion holes 96 are formed in the tip surface of the second terminal housing portion 91. Each second terminal housing chamber 93 opens to the tip surface of the second terminal housing portion 91 through each second conductive member insertion hole 96.

[0051] The second base-side connector portion 90 has two second connection terminals 92. Each of the second connection terminals 92 is housed in each of the second terminal housing chambers 93. Each of the second conductive members 62 inserted into each second terminal housing chamber 93 through each second conductive member insertion hole 96 can be inserted and connected to each second connection terminal 92. Therefore, each second connection terminal 92 is housed in each second terminal housing chamber 93 so that each of the second conductive members 62 inserted into each second terminal housing chamber 93 through each second conductive member insertion hole 96 can be inserted and connected. In this way, each of the second conductive members 62 is connected to the second base-side connector portion 90.

[0052] Also, the end portions of each second connection terminal 92 on the side opposite to the second conductive member 62 are electrically connected to the circuit board 41 through each second terminal insertion hole 95. Therefore, each second connection terminal 92 electrically connects each second conductive member 62 and the circuit board 41. Therefore, the second base-side connector portion 90 is connected to the second solenoid valve-side connector portion 65 and electrically connects the second solenoid valve-side connector portion 65 and the circuit board 41.

[0053] As shown in FIG. 2, the base portion 30 has a fitting recess 47. The fitting recess 47 is formed on the mounting surface 31a. The protruding portion 25 can be fitted into the fitting recess 47. The fitting recess 47 has a bottom surface 47a, a first inner surface 47b, and a second inner surface 47c. The bottom surface 47a is in the shape of a flat surface. The bottom surface 47a extends parallel to the mounting surface 31a. The first inner surface 47b and the second inner surface 47c extend in a direction orthogonal to the bottom surface 47a. The first inner surface 47b and the second inner surface 47c extend from the bottom surface 47a. The first inner surface 47b and the second inner surface 47c are continuous with the mounting surface 31a. The first inner surface 47b and the second inner surface 47c connect the bottom surface 47a and the mounting surface 31a. The first inner surface 47b faces the first side surface 25a of the protruding portion 25. The second inner surface 47c faces the second side surface 25b of the protruding portion 25.

[0054] As shown in FIG. 3, the base portion 30 has a mounting wall portion 42. A connector member 70 is attached to the mounting wall portion 42. The outer surface of the mounting wall portion 42 is the bottom surface 47a of the fitting recess 47. The inner surface of the mounting wall portion 42 is a surface on the opposite side of the bottom surface 47a of the fitting recess 47 and is a mounting surface 42b to which the connector member 70 is attached. The mounting surface 42b is in the shape of a flat surface.

[0055] The base portion 30 has a first insertion port 43 as an insertion port. The first insertion port 43 penetrates the mounting wall portion 42. The first insertion port 43 opens to the bottom surface 47a of the fitting recess 47. The first insertion port 43 disposes the first terminal housing portion 81 inside. Accordingly, the first insertion port 43 disposes the first base-side connector portion 80 inside. A first cylindrical portion 53 is inserted into the first insertion port 43. Accordingly, a first solenoid valve-side connector portion 55 is inserted into the first insertion port 43. The first terminal housing portion 81 is inserted inside the first cylindrical portion 53. Accordingly, the first base-side connector portion 80 is inserted inside the first cylindrical portion 53. A first lip packing 54 is provided between the outer peripheral surface of the first cylindrical portion 53 and the inner peripheral surface of the first insertion port 43. The first lip packing 54 seals between the first cylindrical portion 53 and the first insertion port 43.

[0056] The base portion 30 has a second insertion port 44 as an insertion port. The second insertion port 44 penetrates the mounting wall portion 42. The second insertion port 44 opens to the bottom surface 47a of the fitting recess 47. The first insertion port 43 and the second insertion port 44 are arranged side by side in the juxtaposition direction of the first pilot solenoid valve 50 and the second pilot solenoid valve 60. Therefore, the juxtaposition direction of the first insertion port 43 and the second insertion port 44 coincides with the juxtaposition direction of the first pilot solenoid valve 50 and the second pilot solenoid valve 60.

[0057] The second insertion port 44 has the second terminal accommodating portion 91 arranged inside. Therefore, the second insertion port 44 has the second base side connector portion 90 arranged inside. A second cylindrical portion 63 is inserted into the second insertion port 44. Therefore, a second solenoid valve side connector portion 65 is inserted into the second insertion port 44. The second terminal accommodating portion 91 is inserted inside the second cylindrical portion 63. Therefore, the second base side connector portion 90 is inserted inside the second cylindrical portion 63. A second lip packing 64 is provided between the outer peripheral surface of the second cylindrical portion 63 and the inner peripheral surface of the second insertion port 44. The second lip packing 64 seals between the second cylindrical portion 63 and the second insertion port 44.

[0058] The base portion 30 has a protruding wall 45. The protruding wall 45 is columnar. The protruding wall 45 protrudes from the mounting wall portion 42. As shown in FIG. 4, the protruding wall 45 is rectangular in a plan view. The base portion 30 has a pair of locking protrusions 46. Each locking protrusion 46 protrudes from the protruding wall 45 respectively. The periphery of the through hole 72 in the base portion 71 can be locked to the pair of locking protrusions 46.

[0059] The base 71 is elastically deformable when the pair of locking protrusions 46 are inserted inside the through-hole 72. Specifically, when the pair of locking protrusions 46 are inserted inside the through-hole 72, the periphery of the through-hole 72 in the base 71 is easily elastically deformed in the short side direction of the base 71. And when the through-hole 72 gets over the pair of locking protrusions 46, the periphery of the through-hole 72 in the base 71 returns to the original shape before the elastic deformation, and the periphery of the through-hole 72 in the base 71 locks to the pair of locking protrusions 46.

[0060] In this way, the connector member 70 is attached to the base portion 30 by the periphery of the through-hole 72 in the base 71 being locked to the pair of locking protrusions 46. Note that the connector member 70 is allowed a slight movement in each of the longitudinal direction and the short side direction of the base 71 in the state of being attached to the base portion 30.

[0061] As shown in FIG. 3, when the first cylindrical portion 53 is inserted inside the first insertion port 43, each first conductive member 52 is inserted into each first terminal accommodation chamber 83 through each first conductive member insertion hole 86 and is inserted and connected to each first connection terminal 82. In this way, the first solenoid valve side connector portion 55 is connected to the first base side connector portion 80. Also, when the second cylindrical portion 63 is inserted inside the second insertion port 44, each second conductive member 62 is inserted into each second terminal accommodation chamber 93 through each second conductive member insertion hole 96 and is inserted and connected to each second connection terminal 92. In this way, the second solenoid valve side connector portion 65 is connected to the second base side connector portion 90.

[0062] The insertion direction of the first solenoid valve side connector portion 55 with respect to the first insertion port 43 and the insertion direction of the second solenoid valve side connector portion 65 with respect to the second insertion port 44 are the same direction. Note that in the following description, the "insertion direction of the first solenoid valve side connector portion 55 with respect to the first insertion port 43" and the "insertion direction of the second solenoid valve side connector portion 65 with respect to the second insertion port 44" may be simply described as "insertion direction Z1".

[0063] <Convex portion and concave portion> As shown in FIG. 5, the solenoid valve 11 is provided with a first convex portion 56 and a second convex portion 66 as convex portions. The first convex portion 56 and the second convex portion 66 are provided on the protruding portion 25. The first convex portion 56 protrudes from the first side surface 25a of the protruding portion 25. The second convex portion 66 protrudes from the second side surface 25b of the protruding portion 25. The first convex portion 56 and the second convex portion 66 are in the shape of a quadrangular prism extending in the insertion direction Z1. The end surfaces of the first convex portion 56 and the second convex portion 66 on the base portion 30 side protrude more than the tip surface of the protruding portion 25.

[0064] As shown in FIGS. 5 and 6, the base portion 30 is provided with a first concave portion 87 and a second concave portion 97 as concave portions. The first concave portion 87 is formed on the first inner surface 47b. The first concave portion 87 opens to the first inner surface 47b and the placement surface 31a. The first convex portion 56 is inserted into the first concave portion 87. The insertion direction of the first convex portion 56 with respect to the first concave portion 87 is the same as the insertion direction Z1. The first concave portion 87 guides the first convex portion 56 in the same direction as the insertion direction Z1.

[0065] The second concave portion 97 is formed on the second inner surface 47c. The second concave portion 97 opens to the second inner surface 47c and the placement surface 31a. The second convex portion 66 is inserted into the second concave portion 97. The insertion direction of the second convex portion 66 with respect to the second concave portion 97 is the same as the insertion direction Z1. The second concave portion 97 guides the second convex portion 66 in the same direction as the insertion direction Z1.

[0066] As shown in FIG. 7, the second concave portion 97 has a bottom surface 97a, a first straight surface 97b, a first tapered surface 97c, a second straight surface 97d, and a second tapered surface 97e. The bottom surface 97a is the surface located deepest in the insertion direction of the second convex portion 66 with respect to the second concave portion 97 in the second concave portion 97. The bottom surface 97a is continuous with the bottom surface 47a of the fitting recess 47. The bottom surface 97a is located on the same plane as the bottom surface 47a of the fitting recess 47.

[0067] The first straight surface 97b is continuous with the bottom surface 97a. The first straight surface 97b extends in a direction orthogonal to the bottom surface 97a. The first straight surface 97b extends along the side surface of the second convex portion 66. The first tapered surface 97c is continuous with the edge portion of the first straight surface 97b on the side opposite to the bottom surface 97a. The first tapered surface 97c is a surface that slopes such that the second recess 97 widens as it moves away from the first straight surface 97b. The second straight surface 97d is continuous with the edge portion of the first tapered surface 97c on the side opposite to the first straight surface 97b. The second straight surface 97d extends parallel to the first straight surface 97b.

[0068] The second tapered surface 97e is continuous with the edge portion of the second straight surface 97d on the side opposite to the first tapered surface 97c. The second tapered surface 97e slopes such that the second recess 97 widens as it moves away from the second straight surface 97d. The second tapered surface 97e is continuous with the mounting surface 31a. Thus, the second tapered surface 97e is the surface located at the very mouth of the insertion direction of the second convex portion 66 into the second recess 97 in the second recess 97. In this way, the second recess 97 is wider at the mouth than at the back side in the insertion direction of the second convex portion 66 into the second recess 97.

[0069] Note that the relationship between the first convex portion 56 and the first recess 87 is substantially the same as the relationship between the second convex portion 66 and the second recess 97. Therefore, similar to the second recess 97, the first recess 87 is also wider at the mouth than at the back side in the insertion direction of the first convex portion 56 into the first recess 87. In FIG. 7, details of the relationship between the first convex portion 56 and the first recess 87 are omitted, such as by using the same reference numerals. Note that the first recess 87 only needs to be wider at the mouth than at the back side in the insertion direction of the first convex portion 56 into the first recess 87. The first recess 87 of the present embodiment has a configuration in which, for example, as shown in FIG. 5, the first tapered surface 97c and the second straight surface 97d are omitted.

[0070] As shown in FIGS. 8 and 9, when assembling the solenoid valve 11 to the base portion 30, the first convex portion 56 is guided by the first concave portion 87, and the second convex portion 66 is guided by the second concave portion 97. When the first convex portion 56 is inserted into the mouth of the first concave portion 87 and the second convex portion 66 is inserted into the mouth of the second concave portion 97, the first cylindrical portion 53 has not yet been inserted into the first insertion port 43, and the second cylindrical portion 63 has not yet been inserted into the second insertion port 44. Therefore, the first convex portion 56 and the second convex portion 66 are designed to be inserted into the first concave portion 87 and the second concave portion 97, respectively, before the first cylindrical portion 53 and the second cylindrical portion 63 are inserted into the first insertion port 43 and the second insertion port 44, respectively. And when the first convex portion 56 is guided to the inner side of the first concave portion 87 from the mouth and the second convex portion 66 is guided to the inner side of the second concave portion 97 from the mouth, the first cylindrical portion 53 is inserted into the first insertion port 43 and the second cylindrical portion 63 is inserted into the second insertion port 44.

[0071] As shown in FIG. 9, for example, in a state where the second convex portion 66 is in contact with the second concave portion 97, the first convex portion 56 is not in contact with the first concave portion 87. At this time, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30, and the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30. Also, for example, in a state where the first convex portion 56 is in contact with the first concave portion 87, the second convex portion 66 is not in contact with the second concave portion 97. Also at this time, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30, and the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30.

[0072] When the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the first terminal accommodating portion 81 as the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97. Then, each first conductive member 52 is inserted into each first terminal accommodating chamber 83 through each first conductive member insertion hole 86 and is inserted and connected to each first connection terminal 82. Thus, when the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the first base side connector portion 80. Then, each first conductive member 52 is connected to the first base side connector portion 80.

[0073] When the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the second terminal accommodating portion 91 as the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97. Then, each second conductive member 62 is inserted into each second terminal accommodating chamber 93 through each second conductive member insertion hole 96 and is inserted and connected to each second connection terminal 92. Thus, when the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the second base side connector portion 90. Then, each second conductive member 62 is connected to the second base side connector portion 90.

[0074] Therefore, when the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the first solenoid valve side connector portion 55 is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30. Then, the first solenoid valve side connector portion 55 is connected to the first base side connector portion 80. Also, when the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the second solenoid valve side connector portion 65 is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30. Then, the second solenoid valve side connector portion 65 is connected to the second base side connector portion 90.

[0075] When the first electromagnetic valve side connector portion 55 is positioned such that the first convex portion 56 is guided deeper than the mouth portion into the first concave portion 87 and the second convex portion 66 is guided deeper than the mouth portion into the second concave portion 97, the first cylindrical portion 53 is positioned at a position where it does not interfere with the first base side connector portion 80. When the second electromagnetic valve side connector portion 65 is positioned such that the first convex portion 56 is guided deeper than the mouth portion into the first concave portion 87 and the second convex portion 66 is guided deeper than the mouth portion into the second concave portion 97, the second cylindrical portion 63 is positioned at a position where it does not interfere with the second base side connector portion 90.

[0076] Further, as the first convex portion 56 is guided into the first concave portion 87 and the second convex portion 66 is guided into the second concave portion 97, the relative positions of the respective bolt insertion holes 38h and the respective female screw holes 39 are made to coincide.

[0077] [Operation of the Embodiment] Next, the operation of this embodiment will be described. When connecting the first electromagnetic valve side connector portion 55 to the first base side connector portion 80 and the second electromagnetic valve side connector portion 65 to the second base side connector portion 90, the first convex portion 56 is guided into the first concave portion 87 and the second convex portion 66 is guided into the second concave portion 97. Along with this, the first electromagnetic valve side connector portion 55 is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30. Specifically, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30. Further, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the first base side connector portion 80, and each first conductive member 52 is connected to the first base side connector portion 80.

[0078] Further, the second solenoid valve side connector portion 65 is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30. Specifically, the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30. Further, the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the second base side connector portion 90, and each second conductive member 62 is connected to the second base side connector portion 90. Therefore, the first solenoid valve side connector portion 55 is smoothly connected to the first base side connector portion 80, and the second solenoid valve side connector portion 65 is smoothly connected to the second base side connector portion 90.

[0079] In addition, when each first conductive member 52 is connected to the first base side connector portion 80 and each second conductive member 62 is connected to the second base side connector portion 90, slight movement of the connector member 70 in the longitudinal direction and the short transverse direction of the base portion 71 is allowed. Thereby, the connection of each first conductive member 52 to the first base side connector portion 80 and the connection of each second conductive member 62 to the second base side connector portion 90 are facilitated.

[0080] [Effects of Embodiment] In the above embodiment, the following effects can be obtained. (1) The solenoid valve 11 is provided with a first convex portion 56 and a second convex portion 66. The base portion 30 is provided with a first concave portion 87 for guiding the first convex portion 56 and a second concave portion 97 for guiding the second convex portion 66. As the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the first solenoid valve side connector portion 55 is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30. Then, the first solenoid valve side connector portion 55 is connected to the first base side connector portion 80. Also, as the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the second solenoid valve side connector portion 65 is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30. Then, the second solenoid valve side connector portion 65 is connected to the second base side connector portion 90. Therefore, the first solenoid valve side connector portion 55 can be smoothly connected to the first base side connector portion 80, and the second solenoid valve side connector portion 65 can be smoothly connected to the second base side connector portion 90. Thus, the assemblability of the solenoid valve manifold 10 can be improved.

[0081] (2) As the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the first base side connector portion 80. Then, each first conductive member 52 is connected to the first base side connector portion 80. As the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the second base side connector portion 90. Then, each second conductive member 62 is connected to the second base side connector portion 90. According to this, the first solenoid valve side connector portion 55 can be smoothly connected to the first base side connector portion 80, and the second solenoid valve side connector portion 65 can be smoothly connected to the second base side connector portion 90. Thus, the assemblability of the solenoid valve manifold 10 can be further improved.

[0082] (3) The mouth of the first recess 87 is wider than the inner side in the insertion direction of the first convex portion 56 with respect to the first recess 87. According to this, it is possible to facilitate the insertion of the first convex portion 56 into the first recess 87. The mouth of the second recess 97 is wider than the inner side in the insertion direction of the second convex portion 66 with respect to the second recess 97. According to this, it is possible to facilitate the insertion of the second convex portion 66 into the second recess 97. The first solenoid valve side connector portion 55 is positioned at a position where the first cylindrical portion 53 does not interfere with the first base side connector portion 80 when the first convex portion 56 is guided to the inner side rather than the mouth with respect to the first recess 87 and the second convex portion 66 is guided to the inner side rather than the mouth with respect to the second recess 97. The second solenoid valve side connector portion 65 is positioned at a position where the second cylindrical portion 63 does not interfere with the second base side connector portion 90 when the first convex portion 56 is guided to the inner side rather than the mouth with respect to the first recess 87 and the second convex portion 66 is guided to the inner side rather than the mouth with respect to the second recess 97. Therefore, even if the mouths of the first recess 87 and the second recess 97 are widened, the first cylindrical portion 53 can be inserted into the first insertion port 43 without interfering with the first base side connector portion 80. And each first conductive member 52 can be connected to the first base side connector portion 80. Also, even if the mouths of the first recess 87 and the second recess 97 are widened, the second cylindrical portion 63 can be inserted into the second insertion port 44 without interfering with the second base side connector portion 90. And each second conductive member 62 can be connected to the second base side connector portion 90. Thus, it is possible to further improve the assemblability of the solenoid valve manifold 10.

[0083] (4) As the first convex portion 56 is guided by the first recess 87 and the second convex portion 66 is guided by the second recess 97, the relative positions of the respective bolt insertion holes 38h and the respective female screw holes 39 coincide. According to this, when screwing each bolt 38 inserted through each bolt insertion hole 38h into each female screw hole 39, it is possible to avoid problems such as each bolt 38 interfering with the gasket 37.

[0084] [Modification Example] Incidentally, the above-described embodiment can be implemented with the following modifications. The above-described embodiment and the following modification examples can be implemented in combination with each other within a technically consistent range.

[0085] · As shown in FIG. 10, the second recess 97 may have a holding portion 97f. The holding portion 97f holds the second convex portion 66. The holding portion 97f is, for example, a protrusion protruding from a pair of opposing surfaces on the first straight surface 97b of the second recess 97, and each holding portion 97f holds the second convex portion 66 inserted into the second recess 97 by sandwiching it.

[0086] According to this, the second convex portion 66 is held by the holding portion 97f. Therefore, after the first solenoid valve side connector portion 55 is connected to the first base side connector portion 80 and the second solenoid valve side connector portion 65 is connected to the second base side connector portion 90, it is possible to suppress the solenoid valve 11 from detaching from the base portion 30. Incidentally, the first recess 87 may also have a holding portion 97f. The holding portion 97f of the first recess 87 holds the first convex portion 56.

[0087] · As shown in FIG. 11, for example, the mouth of the second recess 97 may not be wider than the back side in the insertion direction of the second convex portion 66 into the second recess 97. And the tip portion 66a of the second convex portion 66 in the insertion direction into the second recess 97 may be thinner than the portion on the base end side of the tip portion 66a.

[0088] According to this, it is possible to facilitate the insertion of the second convex portion 66 into the second concave portion 97. When a portion on the base end side of the second convex portion 66 with respect to the tip end portion 66a is guided with respect to the second concave portion 97, the first cylindrical portion 53 is positioned at a position where it does not interfere with the first base side connector portion 80 in the first solenoid valve side connector portion 55. When a portion on the base end side of the second convex portion 66 with respect to the tip end portion 66a is guided with respect to the second concave portion 97, the second cylindrical portion 63 is positioned at a position where it does not interfere with the second base side connector portion 90 in the second solenoid valve side connector portion 65. Therefore, even if the tip end portion 66a in the insertion direction of the second convex portion 66 with respect to the second concave portion 97 is thinner than the portion on the base end side of the tip end portion 66a, the first cylindrical portion 53 is inserted into the first insertion port 43 without interfering with the first base side connector portion 80. And each first conductive member 52 can be connected to the first base side connector portion 80. Also, even if the tip end portion 66a in the insertion direction of the second convex portion 66 with respect to the second concave portion 97 is thinner than the portion on the base end side of the tip end portion 66a, the second cylindrical portion 63 is inserted into the second insertion port 44 without interfering with the second base side connector portion 90. And each second conductive member 62 can be connected to the second base side connector portion 90. Thus, the assemblability of the solenoid valve manifold 10 can be further improved.

[0089] Note that the first concave portion 87 does not necessarily have to be wider at the mouth than at the back side in the insertion direction of the first convex portion 56 with respect to the first concave portion 87. And the first convex portion 56 may also have a tip end portion in the insertion direction with respect to the first concave portion 87 that is thinner than the portion on the base end side of the tip end portion.

[0090] ·In the embodiment, for example, a convex portion may be provided on the base portion 30, and a concave portion for guiding the convex portion in the same direction as the insertion direction Z1 may be provided in the solenoid valve 11. In short, it is sufficient that a convex portion is provided on one of the solenoid valve 11 and the base portion 30, and a concave portion is provided on the other of the solenoid valve 11 and the base portion 30.

[0091] · In the embodiment, the first solenoid valve side connector portion 55 may not have the first cylindrical portion 53. Also, the second solenoid valve side connector portion 65 may not have the second cylindrical portion 63. Even in this case, as the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, each first conductive member 52 may be inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30. And each first conductive member 52 may be connected to the first base side connector portion 80. Further, as the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, each second conductive member 62 may be inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30. And each second conductive member 62 may be connected to the second base side connector portion 90.

[0092] · In the embodiment, the first concave portion 87 may not have the first tapered surface 97c and the second straight surface 97d omitted, and may have a configuration having a bottom surface 97a, a first straight surface 97b, a first tapered surface 97c, a second straight surface 97d, and a second tapered surface 97e like the second concave portion 97.

[0093] · In the embodiment, the second concave portion 97 may have a configuration in which the first tapered surface 97c and the second straight surface 97d are omitted. · In the embodiment, the mouth of the first concave portion 87 may not be wider than the back side in the insertion direction of the first convex portion 56 into the first concave portion 87. Also, the mouth of the second concave portion 97 may not be wider than the back side in the insertion direction of the second convex portion 66 into the second concave portion 97.

[0094] · In the embodiment, as the first convex portion 56 is guided by the first concave portion 87 and the second convex portion 66 is guided by the second concave portion 97, the relative positions of each bolt insertion hole 38h and each female screw hole 39 do not necessarily have to coincide.

[0095] · In the embodiment, an annular gasket may be provided between the first pilot solenoid valve 50 and the second pilot solenoid valve 60 and the base portion 30. And the gasket may seal between the first pilot solenoid valve 50 and the second pilot solenoid valve 60 and the base portion 30. In this case, the solenoid valve manifold 10 may be configured not to include the first lip packing 54 and the second lip packing 64.

[0096] Thus, even if a gasket is provided between the first pilot solenoid valve 50 and the second pilot solenoid valve 60 and the base portion 30, the first solenoid valve side connector portion 55 is inserted into the first insertion port 43 without interfering with the gasket. Also, the second solenoid valve side connector portion 65 is inserted into the second insertion port 44 without interfering with the gasket. Therefore, it is possible to avoid a sealing failure between the first pilot solenoid valve 50 and the second pilot solenoid valve 60 and the base portion 30.

[0097] · In the embodiment, for example, only one convex portion may be provided on the solenoid valve 11, and only one concave portion for guiding the convex portion in the same direction as the insertion direction Z1 may be provided on the base portion 30. At this time, when the convex portion is a quadrangular prism, the concave portion may be, for example, a quadrangular hole-shaped recess formed in the mounting surface 31a. In short, as the convex portion of the first solenoid valve side connector portion 55 is guided by the concave portion, it is inserted into the first insertion port 43 without interfering with the periphery of the first insertion port 43 in the base portion 30 and connected to the first base side connector portion 80. Also, as the convex portion of the second solenoid valve side connector portion 65 is guided by the concave portion, it is inserted into the second insertion port 44 without interfering with the periphery of the second insertion port 44 in the base portion 30 and connected to the second base side connector portion 90.

[0098] · In the embodiment, the number of the first conductive members 52 is not particularly limited. · In the embodiment, the number of the second conductive members 62 is not particularly limited. ·In the embodiment, the solenoid valve 11 had the first solenoid valve side connector portion 55 and the second solenoid valve side connector portion 65, but it is not limited thereto. For example, it may be configured to have only one solenoid valve side connector portion. In this case, the solenoid valve side connector portion has one cylindrical portion, a conductive member electrically connected to the first solenoid portion 51, and a conductive member electrically connected to the second solenoid portion 61. And one cylindrical portion surrounds each conductive member. And only one base side connector portion is provided on the base portion 30.

[0099] ·In the embodiment, the solenoid valve 11 may be a single solenoid type pilot solenoid valve. In this case, the solenoid valve 11 has only one solenoid valve side connector portion. And only one base side connector portion is provided on the base portion 30.

[0100] ·In the embodiment, the solenoid valve 11 may be, for example, a 4-port solenoid valve in which the second discharge port R2 is omitted. In short, the solenoid valve 11 only needs to have at least one discharge port. Also, the solenoid valve 11 may be a 3-port solenoid valve having a supply port, an output port, and a discharge port.

Explanation of reference numerals

[0101] 10…Electromagnetic valve manifold, 11…Electromagnetic valve, 30…Base part, 37…Gasket, 38…Bolt, 38h…Bolt insertion hole, 39…Female screw hole, 40…Control part, 41…Circuit board, 43…First insertion port as an insertion port, 44…Second insertion port as an insertion port, 51…First solenoid part as a solenoid part, 52…First conductive member as a conductive member, 53…First cylindrical part as a cylindrical part, 55…First electromagnetic valve side connector part as an electromagnetic valve side connector part, 56…First convex part as a convex part, 61…Second solenoid part as a solenoid part, 62…Second conductive member as a conductive member, 63…Second cylindrical part as a cylindrical part, 65…Second electromagnetic valve side connector part as an electromagnetic valve side connector part, 66…Second convex part as a convex part, 66a…Tip part, 80…First base side connector part as a base side connector part, 87…First concave part as a concave part, 97f…Holding part, 90…Second base side connector part as a base side connector part, 97…Second concave part as a concave part.

Claims

1. A solenoid valve having a solenoid section, a control unit having a circuit board for controlling the drive of the solenoid valve, and a base section having the control unit, wherein the solenoid valve has a solenoid valve side connector section electrically connected to the solenoid section, the base section is provided with a base side connector section to which the solenoid valve side connector section is connected and which electrically connects the solenoid valve side connector section and the circuit board, the base section is a solenoid valve manifold that arranges the base side connector section inside and has an insertion port into which the solenoid valve side connector section is inserted, a convex portion is provided on one of the solenoid valve and the base section, a concave portion for guiding the convex portion in the same direction as the insertion direction of the solenoid valve side connector section into the insertion port is provided on the other of the solenoid valve and the base section, the solenoid valve side connector section is inserted into the insertion port without interfering with the periphery of the insertion port in the base section as the convex portion is guided into the concave portion, and is connected to the base side connector section, and is characterized in that it is a solenoid valve manifold.

2. The solenoid valve side connector section, a conductive member electrically connected to the solenoid section, and a cylindrical portion that surrounds the conductive member and into which the base side connector section is inserted inside, wherein the cylindrical portion is inserted into the insertion port without interfering with the base side connector section as the convex portion is guided into the concave portion, and the conductive member is connected to the base side connector section, and is characterized in that it is the solenoid valve manifold according to claim 1.

3. the mouth of the concave portion is wider than the back side in the insertion direction of the convex portion into the concave portion, the solenoid valve side connector section is positioned at a position where the cylindrical portion does not interfere with the base side connector section when the convex portion is guided to a position deeper than the mouth with respect to the concave portion, and is characterized in that it is the solenoid valve manifold according to claim 2.

4. the tip of the convex portion in the insertion direction with respect to the concave portion is thinner than the portion on the base end side of the tip, the solenoid valve side connector section is positioned at a position where the cylindrical portion does not interfere with the base side connector section when the portion on the base end side of the convex portion with respect to the tip is guided with respect to the concave portion, and is characterized in that it is the solenoid valve manifold according to claim 2.

5. The electromagnetic valve is fixed to the base portion by bolts. The electromagnetic valve is formed with bolt insertion holes through which the bolts are inserted. The base portion is formed with female screw holes into which the bolts are screwed. A gasket is interposed between the electromagnetic valve and the base portion. The electromagnetic valve manifold according to claim 1, wherein as the convex portion is guided into the concave portion, the relative positions of the bolt insertion hole and the female screw hole coincide.

6. The electromagnetic valve manifold according to claim 1, wherein the concave portion has a holding portion for holding the convex portion.

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