Electromagnetic valve manifold

Abstract

To easily insert and connect a first conductive member and a second conductive member into a first connector part and a second connector part, and to reduce a size of a physique of a solenoid valve manifold.SOLUTION: A connector member 70 formed by integrating a first connector part 80 and a second connector part 90 to a flat plate-shaped base 71 is attached to a base part 30. Therefore, it is avoided that relative positions of the first connector part 80 and the second connector part 90 are displaced from prescribed positions. When a pair of lock protrusions 46 are inserted into a penetration hole 72, the base 71 can be elastically deformed to a direction intersecting with insertion directions of the first connector part 80 and the second connector part 90 of a first conductive member and a second conductive member. Accordingly, when attaching the connector member 70 to the base part 30, it is not necessary, for example, to form an oblong plate-shaped lock protrusion which can be locked to a recess of the base part 30 at the connector part 70.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 may include a main valve portion, a first pilot solenoid valve, a second pilot solenoid valve, a control unit, and a base portion. The main valve portion has a first pilot pressure chamber and a second pilot pressure chamber. The main valve portion switches the communication between a plurality of ports by supplying and discharging pilot fluid to and from the first pilot pressure chamber and the second pilot pressure chamber, respectively.

[0003] The first pilot solenoid valve and the second pilot solenoid valve are juxtaposed in an integrated state with each other. The first pilot solenoid valve has a first solenoid portion. The first pilot solenoid valve supplies and discharges pilot fluid to and from the first pilot pressure chamber. The second pilot solenoid valve has a second solenoid portion. The second pilot solenoid valve supplies and discharges pilot fluid to and from the second pilot pressure chamber. The first pilot solenoid valve has a first conductive member. The first conductive member is electrically connected to the first solenoid portion. The second pilot solenoid valve has a second conductive member. The second conductive member is electrically connected to the second solenoid portion.

[0004] The control unit has a circuit board. The circuit board controls the driving of each of the first pilot solenoid valve and the second pilot solenoid valve. The base portion has the control unit. The base portion is provided with a first connector portion and a second connector portion. The first connector portion is inserted and connected to the first conductive member and electrically connects the first conductive member and the circuit board. The second connector portion is inserted and connected to the second conductive member and electrically connects the second conductive member and the circuit board. The insertion direction of the first conductive member with respect to the first connector portion and the insertion direction of the second conductive member with respect to the second connector portion are the same direction.

Prior Art Documents

Patent Document

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] By the way, in such a solenoid valve manifold, if the first connector portion and the second connector portion are separate members, the relative position between the first connector portion and the second connector portion may be attached to the base portion in a state where it is deviated from a predetermined position. If the relative position between the first connector portion and the second connector portion is deviated from the predetermined position, it may become difficult to insert and connect the first conductive member and the second conductive member to the first connector portion and the second connector portion, respectively.

[0007] Also, as a means for attaching the first connector portion and the second connector portion to the base portion, it is conceivable to adopt a snap-fit structure. For example, each of the first connector portion and the second connector portion is provided with an elongated plate-shaped locking projection that can be locked to the concave portion of the base portion, and the locking projection is locked to the concave portion of the base portion while being elastically deformed. However, in such a case, since it is necessary to elastically deform the locking projection, it is necessary to secure a certain length of the locking projection. Therefore, since it is necessary to secure an arrangement space for the locking projection, the size of the solenoid valve manifold becomes large. Therefore, it is desired that the first conductive member and the second conductive member can be easily inserted and connected to the first connector portion and the second connector portion, respectively, and further, the size of the solenoid valve manifold can be reduced.

Means for Solving the Problems

[0008] The solenoid valve manifold for solving the above problems has a first pilot pressure working chamber and a second pilot pressure working chamber, and a main valve portion that switches the communication between a plurality of ports by supplying and discharging pilot fluid to and from the first pilot pressure working chamber and the second pilot pressure working chamber respectively, a first pilot solenoid valve having a first solenoid portion and supplying and discharging pilot fluid to and from the first pilot pressure working chamber, a second pilot solenoid valve having a second solenoid portion and supplying and discharging pilot fluid to and from the second pilot pressure working chamber, a control portion having a circuit board for controlling the driving of the first pilot solenoid valve and the second pilot solenoid valve respectively, and a base portion having the control portion, wherein the first pilot solenoid valve and the second pilot solenoid valve are arranged side by side in an integrated state with each other, the first pilot solenoid valve has a first conductive member electrically connected to the first solenoid portion, the second pilot solenoid valve has a second conductive member electrically connected to the second solenoid portion, the base portion is provided with a first connector portion into which the first conductive member is inserted and connected and which electrically connects the first conductive member and the circuit board, and a second connector portion into which the second conductive member is inserted and connected and which electrically connects the second conductive member and the circuit board, the insertion direction of the first conductive member with respect to the first connector portion and the insertion direction of the second conductive member with respect to the second connector portion are in the same direction, and the solenoid valve manifold is provided with a connector member in which the first connector portion and the second connector portion are integrated with a flat base portion, the base portion has a through hole penetrating the base portion in the thickness direction, the base portion has a pair of locking protrusions, the base portion is elastically deformable in a direction intersecting the insertion direction when the pair of locking protrusions are inserted into the inside of the through hole, and the connector member is attached to the base portion by the periphery of the through hole in the base portion being locked by the pair of locking protrusions.

[0009] In the electromagnetic valve manifold, the base portion has a mounting wall portion to which the connector member is attached and a columnar protruding portion protruding from the mounting wall portion. Each of the locking protrusions protrudes from both side surfaces of the protruding portion, and the side surfaces of each of the locking protrusions are inclined surfaces that are inclined so as to be separated from each other as they are separated from the tip side of the protruding portion. The through hole preferably has a pair of guide surfaces that are respectively guided by the side surfaces of the respective locking protrusions when the pair of locking protrusions are inserted inside the through hole, and each of the guide surfaces is an inclined surface that is inclined so as to approach each other as they are separated from the surface on the mounting wall portion side of the base portion.

[0010] In the electromagnetic valve manifold, the first pilot electromagnetic valve has a first cylindrical portion that surrounds the first conductive member and into which the first connector portion is inserted inside. The second pilot electromagnetic valve has a second cylindrical portion that surrounds the second conductive member and into which the second connector portion is inserted inside. The base portion has a first connection port that disposes the first connector portion inside and into which the first cylindrical portion is inserted, and a second connection port that disposes the second connector portion inside and into which the second cylindrical portion is inserted. A first rubber lip packing for sealing between the first cylindrical portion and the first connection port is provided between the outer peripheral surface of the first cylindrical portion and the inner peripheral surface of the first connection port, and a second rubber lip packing for sealing between the second cylindrical portion and the second connection port is provided between the outer peripheral surface of the second cylindrical portion and the inner peripheral surface of the second connection port.

Advantages of the Invention

[0011] According to this invention, the first conductive member and the second conductive member can be easily inserted and connected to the first connector portion and the second connector portion respectively, and furthermore, the size of the electromagnetic valve manifold can be reduced.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0013] Hereinafter, an embodiment in which the electromagnetic valve manifold is embodied will be described with reference to FIGS. 1 to 6. <Electromagnetic valve manifold 10> As shown in FIG. 1, the electromagnetic valve manifold 10 includes an electromagnetic valve 11. The electromagnetic valve 11 includes a main valve portion 12, a first pilot electromagnetic valve 50, and a second pilot electromagnetic valve 60. Therefore, the electromagnetic valve manifold 10 includes the main valve portion 12, the first pilot electromagnetic valve 50, and the second pilot electromagnetic valve 60. The electromagnetic valve 11 is a pilot type electromagnetic valve of a double solenoid type. Further, the electromagnetic valve manifold 10 includes a control unit 40 and a base portion 30.

[0014] <Main valve portion 12> The main valve portion 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 connecting block 15, and a second connecting block 16. The valve body 14 is in the shape of a long rectangular block. The first connecting block 15 is connected to the first end in the longitudinal direction of the valve body 14. The second connecting 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 portion 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 circular. 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] Each 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 coinciding 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.

[0017] Each 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, each solenoid valve 11 of the present embodiment is a 5-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 first end to the second end in the longitudinal direction of the valve body 14 and are formed in the valve body 14. 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] Each 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 housing recess 21 is formed in the first connection block 15. The first piston 19 is reciprocally accommodated in the first piston housing recess 21. Then, the first pilot pressure acting chamber 22 is partitioned by the first piston housing recess 21 and the first piston 19. Therefore, the main valve portion 12 has the first pilot pressure acting chamber 22. Pilot fluid is supplied and discharged to the first pilot pressure acting chamber 22.

[0021] A circular hole-shaped second piston housing recess 23 is formed in the second connection block 16. The second piston 20 is reciprocally accommodated in the second piston housing recess 23. Then, the second pilot pressure acting chamber 24 is partitioned by the second piston housing recess 23 and the second piston 20. Therefore, the main valve portion 12 has the second pilot pressure acting chamber 24. Pilot fluid is supplied and discharged to the second pilot pressure acting chamber 24.

[0022] <Base portion 30> 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 flow path 32, a first output flow path 33, a second output flow path 34, a first discharge flow path 35, and a second discharge flow path 36. The supply flow path 32, the first output flow path 33, the second output flow path 34, the first discharge flow path 35, and the second discharge flow path 36 open to the mounting surface 31a.

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

[0025] The end of the supply flow path 32 on the side opposite to the mounting surface 31a is connected to a fluid supply source (not shown) via, for example, piping or the like. The ends of the first output flow path 33 and the second output flow path 34 on the side opposite to the mounting surface 31a are respectively connected to fluid pressure devices (not shown) via, for example, piping or the like. The ends of the first discharge flow path 35 and the second discharge flow path 36 on the side opposite to the mounting surface 31a 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 seals between the valve body 14 of the solenoid valve 11 and the manifold block 31.

[0027] <Control unit 40> The control unit 40 is built into the inside of the manifold block 31. Therefore, the base unit 30 has the control unit 40. The control unit 40 has a circuit board 41. Electric power from an external control device such as a programmable logic controller (PLC) (not shown) is supplied to the circuit board 41. The circuit board 41 is built into the inside of 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.

[0028] <The first pilot solenoid valve 50> The first pilot solenoid valve 50 has a first solenoid section 51. The first pilot solenoid valve 50 supplies and discharges pilot fluid to and from the first pilot pressure chamber 22. When a voltage is applied from the circuit board 41 to the first solenoid section 51, the first pilot solenoid valve 50 supplies compressed fluid from a fluid supply source (not shown) to the first pilot pressure chamber 22 as pilot fluid. On the other hand, when the application of the voltage from the circuit board 41 to the first solenoid section 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 chamber 22. Then, the first pilot solenoid valve 50 discharges the pilot fluid in the first pilot pressure chamber 22 to the atmosphere.

[0029] <The second pilot solenoid valve 60> 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 a fluid supply source to the second pilot pressure chamber 24 as pilot fluid. On the other hand, when the application of the voltage from the circuit board 41 to the second solenoid section 61 is stopped, the second pilot solenoid valve 60 stops the supply of the 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.

[0030] 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.

[0031] <The first position and the second position of the spool valve 18> The spool valve 18 is switchable between a first position and a second position. For example, it is assumed that a voltage is being applied from the circuit board 41 to the first solenoid unit 51 and the application of voltage from the circuit board 41 to the second solenoid unit 61 has been stopped. Then, the compressed fluid from the fluid supply source is supplied as pilot fluid to the first pilot pressure chamber 22 by the first pilot solenoid valve 50. On the other hand, the pilot fluid in the second pilot pressure chamber 24 is discharged to the atmosphere by the second pilot solenoid valve 60. As a result, the spool valve 18 moves toward the second piston housing 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.

[0032] Also, for example, assume that the application of voltage from the circuit board 41 to the first solenoid unit 51 is stopped, and the application of voltage from the circuit board 41 to the second solenoid unit 61 is being performed. Then, the compressed fluid from the fluid supply source is supplied as pilot fluid to the second pilot pressure working chamber 24 by the second pilot solenoid valve 60. On the other hand, the pilot fluid in the first pilot pressure working 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 accommodation recess 21. Consequently, the spool valve 18 switches to the second position where the supply port P and the second output port B are in communication, and the first output port A and the first discharge port R1 are in communication. Further, when the spool valve 18 switches to the second position, the communication between the supply port P and the first output port A is blocked, and the communication between the second output port B and the second discharge port R2 is blocked.

[0033] In this way, the supply and discharge of the pilot fluid to and from the first pilot pressure working 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 working 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 unit 12 switches the communication between a plurality of ports by supplying and discharging the pilot fluid to and from the first pilot pressure working chamber 22 and the second pilot pressure working chamber 24, respectively. Note that FIG. 1 shows a state where the spool valve 18 is located at the second position.

[0034] <First conductive member 52> As shown in FIG. 2, the first pilot solenoid valve 50 has the first conductive member 52. The first conductive member 52 is electrically connected to the first solenoid unit 51. The first pilot solenoid valve 50 has two first conductive members 52. One of the two first conductive members 52 constitutes the positive electrode line, and the other of the two first conductive members 52 constitutes the negative electrode line. Each first conductive member 52 is, for example, columnar.

[0035] <First cylindrical portion 53> The first pilot solenoid valve 50 has a first cylindrical portion 53. The first cylindrical portion 53 surrounds two first conductive members 52. Specifically, the first cylindrical portion 53 surrounds the tip portions of the two first conductive members 52, which are the ends 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 protrudes outside the first cylindrical portion 53 through the opening of 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.

[0036] 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.

[0037] <Second conductive member 62> The second pilot solenoid valve 60 has a second conductive member 62. 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 the positive electrode line, and the other of the two second conductive members 62 constitutes the negative electrode line. Each second conductive member 62 is, for example, columnar.

[0038] <Second cylindrical portion 63> The second pilot solenoid valve 60 has a second cylindrical portion 63. The second cylindrical portion 63 surrounds two second conductive members 62. Specifically, the second cylindrical portion 63 surrounds the tip portions of the two second conductive members 62, which are the ends 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 protrudes outside the second cylindrical portion 63 through the opening of 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 respective 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 respective second conductive members 62 face the base portion 30 side.

[0039] 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 respective second conductive members 62 is the same as the extending direction of the tip portions of the respective first conductive members 52.

[0040] A second mounting groove 63a is formed on the outer peripheral surface of the second cylindrical portion 63. 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.

[0041] <Connector member 70> The solenoid manifold 10 includes a connector member 70. The connector member 70 has a base portion 71, a first connector portion 80, and a second connector portion 90. The connector member 70 is provided on the base portion 30. Therefore, the base portion 30 is provided with the first connector portion 80 and the second connector portion 90. The connector member 70 is formed by integrating the first connector portion 80 and the second connector portion 90 with the base portion 71.

[0042] <Base portion 71> As shown in FIGS. 3 and 4, the base 71 is flat. The base 71 is thin plate-shaped. The base 71 is made of resin. In plan view, the base 71 is in the shape of a rectangular plate. The base 71 has a first surface 711 and a second surface 712. The first surface 711 is a surface located on one side in the thickness direction of the base 71. The first surface 711 is flat. The second surface 712 is a surface located on the other side in the thickness direction of the base 71. The second surface 712 is flat. The first surface 711 and the second surface 712 extend parallel to each other.

[0043] The base 71 has a pair of long side edges 71a extending in the longitudinal direction X1 of the base 71 and a pair of short side edges 71b extending in the short transverse direction W1 of the base 71. The pair of long side edges 71a extend parallel to each other. The pair of short side edges 71b extend parallel to each other. One of the pair of short side edges 71b connects the first ends of each long side edge 71a in the longitudinal direction X1. The other of the pair of short side edges 71b connects the second ends of each long side edge 71a in the longitudinal direction X1. Each long side edge 71a has a curved portion 71c. Each curved portion 71c is curved in an arc shape so as to be recessed in a direction approaching each other at the central portion of each long side edge 71a.

[0044] <Through hole 72> The base 71 has a through hole 72. The through hole 72 penetrates the base 71 in the thickness direction. The through hole 72 is located at the central portion of the base 71. In plan view, the through hole 72 is in the shape of a rectangular hole. The longitudinal direction of the through hole 72 coincides with the longitudinal direction X1 of the base 71. In plan view, the through hole 72 is sandwiched between both curved portions 71c in the short transverse direction W1 of the base 71. Therefore, each curved portion 71c is curved in an arc shape so as to be recessed from each long side edge 71a toward the through hole 72. And due to the formation of both curved portions 71c in the base 71, the periphery of the through hole 72 in the base 71 is easily elastically deformed in the short transverse direction W1 of the base 71.

[0045] The base 71 has extension holes 73 and 74. The extension hole 73 extends in the longitudinal direction X1 of the base 71 so as to bifurcate from the first end in the longitudinal direction of the through hole 72. The extension hole 74 extends in the longitudinal direction X1 of the base 71 so as to bifurcate from the second end in the longitudinal direction of the through hole 72. And since each of the extension holes 73 and 74 is formed in the base 71, the periphery of the through hole 72 in the base 71 is more easily elastically deformed in the short direction W1 of the base 71.

[0046] <First connector portion 80> As shown in FIG. 2, the first connector portion 80 has a first terminal housing portion 81 and a first connection terminal 82. As shown in FIG. 4, the first terminal housing portion 81 is cylindrical and protrudes from the first surface 711 of the base 71. The first terminal housing portion 81 is, for example, square cylindrical. The first terminal housing portion 81 is disposed closer to the first end in the longitudinal direction of the base 71 than the through hole 72 on the first surface 711 of the base 71. When the base 71 is viewed in plan, the first terminal housing portion 81 is adjacent to the through hole 72 in the longitudinal direction of the base 71.

[0047] As shown in FIG. 2, 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 second surface 712 of the base 71 through each first terminal insertion hole 85 formed in the base 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 connector portion 80 has two first connection terminals 82. Each first connection terminal 82 is respectively accommodated in each first terminal accommodation chamber 83. Each first conductive member 52 inserted into each first terminal accommodation 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 accommodated in each first terminal accommodation chamber 83 so that each first conductive member 52 inserted into each first terminal accommodation chamber 83 through each first conductive member insertion hole 86 can be inserted and connected.

[0049] Also, 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 connector portion 80 has the first conductive member 52 inserted and connected and electrically connects the first conductive member 52 and the circuit board 41.

[0050] <The second connector portion 90> The second connector portion 90 has a second terminal accommodation portion 91 and a second connection terminal 92. As shown in FIG. 4, the second terminal accommodation portion 91 is cylindrical and protrudes from the first surface 711 of the base portion 71. The second terminal accommodation portion 91 is, for example, square cylindrical. The second terminal accommodation portion 91 is disposed closer to the second end in the longitudinal direction of the base portion 71 than the through hole 72 in the first surface 711 of the base portion 71. When the base portion 71 is viewed in plan, the second terminal accommodation portion 91 is adjacent to the through hole 72 in the longitudinal direction of the base portion 71.

[0051] As shown in FIG. 2, the second terminal housing portion 91 has two second terminal housing chambers 93. Each second terminal housing chamber 93 is arranged side by side in a direction orthogonal to the axial direction of the second terminal housing portion 91. Both 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 second surface 712 of the base portion 71 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.

[0052] The second connector portion 90 has two second connection terminals 92. Each second connection terminal 92 is respectively housed in each second terminal housing chamber 93. Each second conductive member 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 second conductive member 62 inserted into each second terminal housing chamber 93 through each second conductive member insertion hole 96 can be inserted and connected.

[0053] Further, the end portion of each second connection terminal 92 on the side opposite to the second conductive member 62 is electrically connected to the circuit board 41 through each second terminal insertion hole 95. Thus, each second connection terminal 92 electrically connects each second conductive member 62 and the circuit board 41. Therefore, the second connector portion 90 electrically connects the second conductive member 62 while the second conductive member 62 is inserted and connected, and the second conductive member 62 and the circuit board 41.

[0054] <Mounting wall portion 42> As shown in FIGS. 2 and 5, the base portion 30 has a mounting wall portion 42. A connector member 70 is attached to the mounting wall portion 42. The mounting wall portion 42 faces the first pilot solenoid valve 50 and the second pilot solenoid valve 60. The mounting wall portion 42 has an outer surface 42a and an inner surface 42b. The outer surface 42a of the mounting wall portion 42 is a surface facing the first pilot solenoid valve 50 and the second pilot solenoid valve 60. The inner surface 42b of the mounting wall portion 42 is a surface on the side opposite to the outer surface 42a and is the surface to which the connector member 70 is attached.

[0055] <First connection port 43> As shown in FIG. 2, the base portion 30 has a first connection port 43. The first connection port 43 penetrates the mounting wall portion 42. The first connection port 43 disposes a first terminal accommodating portion 81 inside. Accordingly, the first connection port 43 disposes a first connector portion 80 inside. A first cylindrical portion 53 is inserted into the first connection port 43. At this time, the first terminal accommodating portion 81 is inserted inside the first cylindrical portion 53. Accordingly, the first pilot solenoid valve 50 has the first cylindrical portion 53 into which the first connector portion 80 is inserted inside. And 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 connection port 43. The first lip packing 54 seals between the first cylindrical portion 53 and the first connection port 43.

[0056] <Second connection port 44> The base portion 30 has a second connection port 44. The second connection port 44 penetrates the mounting wall portion 42. The second connection port 44 disposes a second terminal accommodating portion 91 inside. Accordingly, the second connection port 44 disposes a second connector portion 90 inside. A second cylindrical portion 63 is inserted into the second connection port 44. At this time, the second terminal accommodating portion 91 is inserted inside the second cylindrical portion 63. Accordingly, the second pilot solenoid valve 60 has the second cylindrical portion 63 into which the second connector portion 90 is inserted inside. And 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 connection port 44. The second lip packing 64 seals between the second cylindrical portion 63 and the second connection port 44.

[0057] <Insertion direction Z1> When the first cylindrical portion 53 is inserted inside the first connection 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, each first conductive member 52 is inserted and connected to the first connector portion 80. Further, when the second cylindrical portion 63 is inserted inside the second connection 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, each second conductive member 62 is inserted and connected to the second connector portion 90.

[0058] The insertion direction of each first conductive member 52 with respect to the first connector portion 80 and the insertion direction of each second conductive member 62 with respect to the second connector portion 90 are the same direction. In the following description, the "insertion direction of each first conductive member 52 with respect to the first connector portion 80" and the "insertion direction of each second conductive member 62 with respect to the second connector portion 90" may be simply described as "insertion direction Z1".

[0059] <Protrusion 45> The base portion 30 has a protrusion 45. The protrusion 45 is columnar. The protrusion 45 protrudes from the mounting wall portion 42. As shown in FIG. 5, the protrusion 45 is rectangular in plan view. The protrusion 45 has a pair of long side surfaces 45a extending in the longitudinal direction of the protrusion 45 and a pair of short side surfaces 45b extending in the short direction of the protrusion 45. The pair of long side surfaces 45a extend parallel to each other. The pair of short side surfaces 45b extend parallel to each other. One of the pair of short side surfaces 45b connects the first ends in the longitudinal direction of each long side surface 45a. The other of the pair of short side surfaces 45b connects the second ends in the longitudinal direction of each long side surface 45a.

[0060] <Locking projection 46> The base portion 30 has a pair of locking protrusions 46. Each locking protrusion 46 protrudes from both longitudinal side surfaces 45a of the protruding portion 45 respectively. Therefore, both longitudinal side surfaces 45a are the both side surfaces of the protruding portion 45 from which each locking protrusion 46 protrudes respectively.

[0061] As shown in FIG. 6, the side surface 46a of each locking protrusion 46 is an inclined surface that inclines so as to be separated from each other as it is separated from the tip side of the protruding portion 45. Each locking protrusion 46 has a stepped surface 46b. The stepped surface 46b connects the edge on the opposite side of the tip side of the protruding portion 45 on the side surface 46a of the locking protrusion 46 and the longitudinal side surface 45a of the protruding portion 45. The stepped surface 46b stands up in a direction orthogonal to the longitudinal side surface 45a of the protruding portion 45. The periphery of the through hole 72 in the base portion 71 can be locked to the pair of locking protrusions 46. The first surface 711 of the base portion 71 faces the inner surface 42b of the mounting wall portion 42.

[0062] <Guide surface 75> The through hole 72 has a pair of guide surfaces 75. Each guide surface 75 is guided by the side surface 46a of each locking protrusion 46 when the pair of locking protrusions 46 are inserted into the inside of the through hole 72. Each guide surface 75 is an inclined surface that inclines so as to approach each other as it is separated from the first surface 711 which is the surface on the mounting wall portion 42 side in the base portion 71.

[0063] <Relationship between the connector member 70 and the base portion 30> As shown in FIGS. 5 and 6, the connector member 70 is arranged with respect to the base portion 30 such that the pair of locking protrusions 46 are inserted into the inside of the through hole 72 in a state where the longitudinal direction of the through hole 72 coincides with the longitudinal direction of the protruding portion 45. At this time, the thickness direction of the base portion 71 coincides with the insertion direction Z1. The base portion 71 can be elastically deformed in a direction intersecting the insertion direction Z1 when the pair of locking protrusions 46 are inserted into the inside of the through hole 72. Specifically, when the pair of locking protrusions 46 are inserted into the inside of the through hole 72, the periphery of the through hole 72 in the base portion 71 is easily elastically deformed in the short-side direction W1 of the base portion 71.

[0064] Then, when the through hole 72 gets over the pair of locking protrusions 46, the periphery of the through hole 72 in the base portion 71 returns to the original shape before elastic deformation, and the periphery of the through hole 72 in the base portion 71 locks to the step surface 46b of the pair of locking protrusions 46. 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 portion 71 being locked to the pair of locking protrusions 46. Note that the connector member 70 is allowed a slight movement in the longitudinal direction X1 of the base portion 71 and the short - hand direction W1 of the base portion 71 in the state of being attached to the base portion 30.

[0065] [Operation of the Embodiment] Next, the operation of this embodiment will be described. Since the connector member 70, in which the first connector portion 80 and the second connector portion 90 are integrated with the base portion 71, is attached to the base portion 30, the relative positions of the first connector portion 80 and the second connector portion 90 do not shift from the predetermined positions. Therefore, the first conductive member 52 and the second conductive member 62 can be easily inserted and connected to the first connector portion 80 and the second connector portion 90 respectively.

[0066] For example, when a voltage is applied from the circuit board 41 to the first solenoid portion 51 and the application of voltage from the circuit board 41 to the second solenoid portion 61 is stopped, the spool valve 18 switches to the first position. When the spool valve 18 switches to the first position, the fluid supplied to the supply port P is output to the fluid pressure device through 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 through the second output flow path 34, the second output port B, and the second discharge port R2.

[0067] On the one hand, as shown in FIG. 1, for example, when the application of voltage from the circuit board 41 to the first solenoid unit 51 is stopped and the application of voltage from the circuit board 41 to the second solenoid unit 61 is being performed, the spool valve 18 switches to the second position. When the spool valve 18 switches to the second position, 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. Then, 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.

[0068] [Effects of the Embodiment] The following effects can be obtained in the above embodiment. (1) The connector member 70 in which the first connector portion 80 and the second connector portion 90 are integrated with the flat base portion 71 is attached to the base portion 30. According to this, the relative positions of the first connector portion 80 and the second connector portion 90 do not deviate from the predetermined positions. Therefore, the first conductive member 52 and the second conductive member 62 can be easily inserted and connected to the first connector portion 80 and the second connector portion 90, respectively.

[0069] Furthermore, when the pair of locking protrusions 46 are inserted inside the through holes 72, the base portion 71 can be elastically deformed in a direction intersecting the insertion direction of the first conductive member 52 and the second conductive member 62 into the first connector portion 80 and the second connector portion 90, respectively. Therefore, in order to attach the connector member 70 to the base portion 30, for example, it is not necessary to provide the connector member 70 with an elongated plate-shaped locking protrusion that can be locked to the concave portion of the base portion 30.

[0070] For example, when providing the connector member 70 with an elongated plate-shaped locking projection, since it is necessary to elastically deform the locking projection, it is necessary to secure a certain length for the locking projection. Therefore, since it is necessary to secure a space for arranging the locking projection, the size of the solenoid valve manifold 10 increases. However, the connector member 70 is attached to the base portion 30 by the periphery of the through hole 72 in the base portion 71 being locked by the pair of locking projections 46. Therefore, even if the connector member 70 is not provided with an elongated plate-shaped locking projection, the connector member 70 can be attached to the base portion 30, so that the size of the solenoid valve manifold 10 can be reduced. As described above, the first conductive member 52 and the second conductive member 62 can be easily inserted and connected to the first connector portion 80 and the second connector portion 90, respectively, and furthermore, the size of the solenoid valve manifold 10 can be reduced.

[0071] (2) The side surfaces 46a of the respective locking projections 46 are inclined surfaces that are inclined so as to be separated from each other as they are separated from the tip end side of the protruding portion 45. Each guide surface 75 of the through hole 72 is an inclined surface that is inclined so as to approach each other as it is separated from the surface on the mounting wall portion 42 side in the base portion 71. According to this, when the pair of locking projections 46 are inserted inside the through hole 72, each guide surface 75 of the through hole 72 is guided by the side surface 46a of each locking projection 46. Therefore, since the pair of locking projections 46 are easily inserted inside the through hole 72, the connector member 70 can be easily attached to the base portion 30.

[0072] (3) Between the outer peripheral surface of the first cylindrical portion 53 and the inner peripheral surface of the first connection port 43, a first rubber lip packing 54 for sealing between the first cylindrical portion 53 and the first connection port 43 is provided. Between the outer peripheral surface of the second cylindrical portion 63 and the inner peripheral surface of the second connection port 44, a second rubber lip packing 64 for sealing between the second cylindrical portion 63 and the second connection port 44 is provided. According to this, dimensional tolerances between the first pilot solenoid valve 50 and the second pilot solenoid valve 60 and the base portion 30 can be absorbed by elastic deformation of the first lip packing 54 and the second lip packing 64 respectively. Therefore, the first conductive member 52 and the second conductive member 62 can be more easily inserted and connected to the first connector portion 80 and the second connector portion 90 respectively.

[0073] [Modification example] In addition, the above embodiment can be modified and implemented as follows. The above embodiment and the following modification examples can be implemented in combination with each other within a technically non - conflicting range.

[0074] · In the embodiment, each locking projection 46 does not protrude from both long side surfaces 45a of the protruding portion 45, but may protrude from both short side surfaces 45b of the protruding portion 45, for example. In this case, when the pair of locking projections 46 are inserted inside the through - hole 72, the periphery of the through - hole 72 in the base portion 71 elastically deforms in the longitudinal direction X1 of the base portion 71. In short, the base portion 71 only needs to be elastically deformable in a direction intersecting the insertion direction Z1 when the pair of locking projections 46 are inserted inside the through - hole 72. And the connector member 70 only needs to be attached to the base portion 30 when the periphery of the through - hole 72 in the base portion 71 is locked by the pair of locking projections 46.

[0075] · In the embodiment, the side surfaces 46a of the locking protrusions 46 do not have to be inclined surfaces that are spaced apart from each other as they are spaced apart from the tip side of the protruding portion 45. For example, the side surfaces 46a of the locking protrusions 46 may be flat surfaces extending in the same direction as the protruding direction from the mounting wall portion 42 in the protruding portion 45. In this case, the guide surfaces 75 of the through holes 72 do not have to be inclined surfaces that are inclined so as to approach each other as they are spaced apart from the surface on the mounting wall portion 42 side of the base portion 71. For example, the guide surfaces 75 of the through holes 72 may be flat surfaces extending in the same direction as the thickness direction of the base portion 71.

[0076] · 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 gap between the first pilot solenoid valve 50 and the second pilot solenoid valve 60 and the base portion 30 may be sealed by the gasket. 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.

[0077] · 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 first pilot solenoid valve 50 may be configured not to have the first cylindrical portion 53.

[0078] · In the embodiment, the second pilot solenoid valve 60 may be configured not to have the second cylindrical portion 63. · In the embodiment, the base portion 71 may be configured not to have the extension holes 73 and 74.

[0079] · In the embodiment, the shape of the protruding portion 45 is not particularly limited. And the shape of the through hole 72 may be appropriately changed according to the shape of the protruding portion 45. · In an embodiment, the solenoid valve 11 may be, for example, a 4-port solenoid valve with the second discharge port R2 omitted. The main point is that 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 Signs

[0080] 10… solenoid valve manifold, 12… main valve section, 22… first pilot pressure acting chamber, 24… second pilot pressure acting chamber, 30… base section, 40… control section, 41… circuit board, 42… mounting wall section, 43… first connection port, 44… second connection port, 45… protruding portion, 45a… long side surface as a side surface, 46… locking projection, 46a… side surface, 50… first pilot solenoid valve, 51… first solenoid section, 52… first conductive member, 53… first cylindrical section, 54… first lip packing, 60… second pilot solenoid valve, 61… second solenoid section, 62… second conductive member, 63… second cylindrical section, 64… second lip packing, 70… connector member, 71… base portion, 72… through hole, 75… guide surface, 80… first connector section, 90… second connector section.

Claims

1. A main valve section having a first pilot pressure chamber and a second pilot pressure chamber, and switching communication between a plurality of ports by supplying and discharging pilot fluid to and from the first pilot pressure chamber and the second pilot pressure chamber respectively; A first pilot solenoid valve having a first solenoid section and supplying and discharging pilot fluid to and from the first pilot pressure chamber; A second pilot solenoid valve having a second solenoid section and supplying and discharging pilot fluid to and from the second pilot pressure chamber; A control section having a circuit board for controlling the driving of each of the first pilot solenoid valve and the second pilot solenoid valve; A base section having the control section; and The first pilot solenoid valve and the second pilot solenoid valve are arranged side by side in an integrated state with each other; The first pilot solenoid valve has a first conductive member electrically connected to the first solenoid section; The second pilot solenoid valve has a second conductive member electrically connected to the second solenoid section; On the base section, A first connector section into which the first conductive member is inserted and connected, and electrically connecting the first conductive member and the circuit board; A second connector section into which the second conductive member is inserted and connected, and electrically connecting the second conductive member and the circuit board; are provided, An electromagnetic valve manifold in which the insertion direction of the first conductive member with respect to the first connector section and the insertion direction of the second conductive member with respect to the second connector section are in the same direction; The first connector section and the second connector section are provided with a connector member formed by integrating them with a flat base; The base has a through hole penetrating the base in the thickness direction; The base section has a pair of locking projections; The base is elastically deformable in a direction intersecting the insertion direction when the pair of locking projections are inserted inside the through hole; The electromagnetic valve manifold is characterized in that the connector member is attached to the base section by locking the periphery of the through hole in the base section to the pair of locking projections.

2. The base section, Has an attachment wall section to which the connector member is attached; And a columnar protruding section protruding from the attachment wall section; Each of the locking projections protrudes from both side surfaces of the protruding section respectively. The side surfaces of the respective locking protrusions are inclined surfaces that incline so as to be separated from each other as they are separated from the tip side of the protruding portion. When the pair of locking protrusions are inserted into the inside of the through hole, the through hole has a pair of guide surfaces that are respectively guided by the side surfaces of the respective locking protrusions. The electromagnetic valve manifold according to claim 1, wherein each of the guide surfaces is an inclined surface that inclines so as to approach each other as it is separated from the surface on the mounting wall portion side in the base portion.

3. The first pilot electromagnetic valve has a first cylindrical portion that surrounds the first conductive member and into which the first connector portion is inserted inside. The second pilot electromagnetic valve has a second cylindrical portion that surrounds the second conductive member and into which the second connector portion is inserted inside. The base portion has a first connection port that disposes the first connector portion inside and into which the first cylindrical portion is inserted, and a second connection port that disposes the second connector portion inside and into which the second cylindrical portion is inserted. A first rubber lip packing for sealing between the first cylindrical portion and the first connection port is provided between the outer peripheral surface of the first cylindrical portion and the inner peripheral surface of the first connection port. The electromagnetic valve manifold according to claim 1 or claim 2, wherein a second rubber lip packing for sealing between the second cylindrical portion and the second connection port is provided between the outer peripheral surface of the second cylindrical portion and the inner peripheral surface of the second connection port.

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