Solenoid valve manifold

Abstract

The solenoid valve manifold (10) includes a connecting member (70), which is integrally formed with a base (71) by means of a first connecting portion (80) and a second connecting portion (90). The first connecting portion (80) is configured to electrically connect a first conductive member (52) to a circuit board (41), and the second connecting portion (90) is configured to electrically connect a second conductive member (62) to a circuit board (41). The base (71) has a through hole (72), and the base portion (30) has two locking protrusions (46). The base (71) is configured such that when the two locking protrusions (46) are inserted into the inside of the through hole (72), the base (71) can elastically deform in a direction intersecting the insertion direction. The connecting member (70) is configured to be mounted on the base portion (30) by means of the portion around the through hole (72) in the base portion (71) and two locking protrusions (46).

Description

Technical Field

[0001] This disclosure relates to a solenoid valve manifold. Background Technology

[0002] For example, as disclosed in Patent Document 1, the solenoid valve manifold may include a main valve section, a first pilot solenoid valve, a second pilot solenoid valve, a control section, and a base section. The main valve section has a first pilot pressure chamber and a second pilot pressure chamber. By supplying and discharging pilot fluid to the first pilot pressure chamber and the second pilot pressure chamber respectively, the main valve section switches the connection between multiple ports.

[0003] The first pilot solenoid valve and the second pilot solenoid valve are integrated and arranged side by side. The first pilot solenoid valve has a first solenoid section. The first pilot solenoid valve supplies and discharges pilot fluid to the first pilot pressure chamber. The second pilot solenoid valve has a second solenoid section. The second pilot solenoid valve supplies and discharges pilot fluid to 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 section. The second pilot solenoid valve has a second conductive member. The second conductive member is electrically connected to the second solenoid section.

[0004] The control unit has a circuit board. The circuit board controls the actuation of the first pilot solenoid valve and the second pilot solenoid valve. The base unit also has the control unit. The base unit has a first connecting part and a second connecting part. The first connecting part allows a first conductive member to be inserted and connected, electrically connecting the first conductive member to the circuit board. The second connecting part allows a second conductive member to be inserted and connected, electrically connecting the second conductive member to the circuit board. The insertion direction of the first conductive member into the first connecting part is the same as the insertion direction of the second conductive member into the second connecting part.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2020-186781 Summary of the Invention

[0008] The technical problem to be solved by the invention

[0009] In such a solenoid valve manifold, when the relative positions of the first connecting part and the second connecting part deviate from a predetermined position, it becomes difficult to insert and connect the first conductive member and the second conductive member to the first connecting part and the second connecting part, respectively. Therefore, it is desirable to be able to easily insert and connect the first conductive member and the second conductive member to the first connecting part and the second connecting part, respectively, and to achieve miniaturization of the solenoid valve manifold.

[0010] Technical solutions adopted to solve technical problems

[0011] This disclosure discloses a solenoid valve manifold comprising a main valve section, a first pilot solenoid valve, a second pilot solenoid valve, a control section, and a base section. The main valve section is configured to have a first pilot pressure chamber and a second pilot pressure chamber, and switches the connection between multiple ports by supplying and discharging pilot fluid into and from the first and second pilot pressure chambers, respectively. The first pilot solenoid valve is configured to have a first solenoid section and supply and discharge pilot fluid into and from the first pilot pressure chamber. The second pilot solenoid valve is configured to have a second solenoid section and supply and discharge pilot fluid into and from the second pilot pressure chamber. The control section has a circuit board configured to control the actuation of the first and second pilot solenoid valves. The base section houses the control section. The first and second pilot solenoid valves are integrated and arranged side-by-side. 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. A first connecting portion and a second connecting portion are provided in the base portion. The first connecting portion is configured to allow the first conductive member to be inserted and connected, and to electrically connect the first conductive member to the circuit board. The second connecting portion is configured to allow the second conductive member to be inserted and connected, and to electrically connect the second conductive member to the circuit board. The insertion direction of the first conductive member into the first connecting portion is the same as the insertion direction of the second conductive member into the second connecting portion. The solenoid valve manifold includes a connecting member, which has a flat base. The first connecting portion and the second connecting portion are integrated with the base. The base has a through hole that extends through the base in the thickness direction. The base portion has two locking protrusions. The base is configured such that when the two locking protrusions are inserted into the inside of the through hole, the base can elastically deform in a direction intersecting the insertion direction. The connecting member is configured such that it is engaged with the two locking protrusions by the portion around the through hole in the base, thereby being mounted on the base portion. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the solenoid valve manifold representing an embodiment.

[0013] Figure 2 It is Figure 1 A partially enlarged cross-sectional view of the solenoid valve manifold.

[0014] Figure 3 Viewed from the second side of the base Figure 2 A top view of the connecting components of the solenoid valve manifold.

[0015] Figure 4 yes Figure 3 A three-dimensional view of the connecting components.

[0016] Figure 5 It means Figure 3 A cross-sectional view of the connecting components installed on the base.

[0017] Figure 6 It means Figure 3 A cross-sectional view of the connecting components installed on the base. Detailed Implementation

[0018] The following is based on Figures 1-6 An embodiment of the solenoid valve manifold will be described.

[0019] <Solenoid valve manifold 10>

[0020] like Figure 1 As shown, the solenoid valve manifold 10 includes a solenoid valve 11. The solenoid valve 11 includes a main valve section 12, a first pilot solenoid valve 50, and a second pilot solenoid valve 60. Therefore, the solenoid valve manifold 10 includes a main valve section 12, a first pilot solenoid valve 50, and a second pilot solenoid valve 60. The solenoid valve 11 is a double-spindle type pilot-operated solenoid valve. The solenoid valve manifold 10 includes a control section 40 and a base section 30.

[0021] <Main Valve Section 12>

[0022] The main valve section 12 has a valve housing 13. The valve housing 13 is a rectangular block. The valve housing 13 has a valve body 14, a first connecting block 15, and a second connecting block 16. The valve body 14 is a rectangular block. The first connecting block 15 is connected to the first end of the valve body 14 along its long side. The second connecting block 16 is connected to the second end of the valve body 14 along its long side. The valve body 14 has a main body facing surface 14a facing the base section 30.

[0023] The valve housing 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 along the long side of the valve body 14. The first end of the spool valve hole 17 opens toward the first end face of the valve body 14 along the long side. The second end of the spool valve hole 17 opens toward the second end face of the valve body 14 along the long side. Therefore, the spool valve hole 17 penetrates the valve body 14 along the long side.

[0024] The solenoid valve 11 has a spool 18. The spool 18 is housed within a spool bore 17. The spool 18 is housed within the spool bore 17 with its axial direction aligned with the axial direction of the spool bore 17. The spool 18 is housed in a manner that allows it to move back and forth within the spool bore 17.

[0025] 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 in this embodiment is a 5-port solenoid valve. (The supply port P, first output port A, second output port B, first discharge port R1, and second discharge port R2 are listed.)

[0026] Discharge port R2 is formed in valve body 14. Supply port P, first output port A, second output port B, first discharge port R1 and second discharge port R2 are respectively connected to slide valve hole 17.

[0027] Starting from the first end along the long side of the valve body 14 and moving towards the second end, the following ports are arranged in sequence: first discharge port R1, first output port A, supply port P, second output port B, and second discharge port R2. The first end of each of the supply port P, first output port A, second output port B, first discharge port R1, and second discharge port R2 communicates with the slide valve orifice 17. The second end of each of the supply port P, first output port A, second output port B, first discharge port R1, and second discharge port R2 opens towards the opposite surface 14a of the valve body 14.

[0028] The solenoid valve 11 has a first piston 19 and a second piston 20. The first piston 19 is in the shape of a circular plate. The first piston 19 is connected to the first end of the spool valve core 18. The first piston 19 and the spool valve core 18 move integrally. The second piston 20 is in the shape of a circular plate. The second piston 20 is connected to the second end of the spool valve core 18. The second piston 20 and the spool valve core 18 move integrally.

[0029] A first piston receiving recess 21 with a circular hole is formed in the first connecting block 15. A first piston 19 that can move back and forth is received in the first piston receiving recess 21. A first pilot pressure chamber 22 is divided by the first piston receiving recess 21 and the first piston 19. Therefore, the main valve section 12 has a first pilot pressure chamber 22. Pilot fluid is supplied to or discharged from the first pilot pressure chamber 22.

[0030] A second piston receiving recess 23 with a circular hole is formed in the second connecting block 16. A second piston 20 that can move back and forth is received in the second piston receiving recess 23. A second pilot pressure chamber 24 is divided by the second piston receiving recess 23 and the second piston 20. Therefore, the main valve section 12 has a second pilot pressure chamber 24. Pilot fluid is supplied to or discharged from the second pilot pressure chamber 24.

[0031] <Base section 30>

[0032] The base portion 30 has a manifold block 31. The manifold block 31 is rectangular. The manifold block 31 has a placement surface 31a. A solenoid valve 11 is mounted on the placement surface 31a. The long side of the manifold block 31 is aligned with the long side of the valve housing 13.

[0033] 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 toward the placement surface 31a.

[0034] The end of the supply flow path 32 that opens towards the placement surface 31a is connected to the supply port P. The end of the first output flow path 33 that opens towards the placement surface 31a is connected to the first output port A. The end of the second output flow path 34 that opens towards the placement surface 31a is connected to the second output port B. The end of the first discharge flow path 35 that opens towards the placement surface 31a is connected to the first discharge port R1. The end of the second discharge flow path 36 that opens towards the placement surface 31a is connected to the second discharge port R2.

[0035] The end of the supply flow path 32 opposite to the placement surface 31a is connected to a fluid supply source (not shown) via, for example, a pipe. The ends of the first output flow path 33 and the second output flow path 34 opposite to the placement surface 31a are respectively connected to a fluid pressure device (not shown) via, for example, a pipe. The ends of the first discharge flow path 35 and the second discharge flow path 36 opposite to the placement surface 31a are connected to the atmosphere via, for example, a pipe.

[0036] The solenoid valve manifold 10 has an annular gasket 37. The gasket 37 is, for example, a thin plate. The gasket 37 seals between the valve body 14 of the solenoid valve 11 and the manifold block 31.

[0037] <Control Section 40>

[0038] 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. The circuit board 41 is supplied with power from an external control device, such as a programmable logic controller (PLC) not shown. The circuit board 41 is built into the manifold block 31. The circuit board 41 controls the actuation of the first pilot solenoid valve 50 and the second pilot solenoid valve 60 respectively.

[0039] <First pilot solenoid valve 50>

[0040] The first pilot solenoid valve 50 has a first solenoid section 51. The first pilot solenoid valve 50 supplies and discharges pilot fluid to the first pilot pressure chamber 22. When 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) as pilot fluid to the first pilot pressure chamber 22. Conversely, when the voltage application from the circuit board 41 to the first solenoid section 51 is stopped, the first pilot solenoid valve 50 stops supplying compressed fluid from the fluid supply source to the first pilot pressure chamber 22. Furthermore, the first pilot solenoid valve 50 discharges the pilot fluid within the first pilot pressure chamber 22 to the atmosphere.

[0041] <Second pilot solenoid valve 60>

[0042] The second pilot solenoid valve 60 has a second solenoid section 61. The second pilot solenoid valve 60 supplies and discharges pilot fluid to the second pilot pressure chamber 24. When 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. Conversely, when the voltage application from the circuit board 41 to the second solenoid section 61 is stopped, the second pilot solenoid valve 60 stops supplying compressed fluid from the fluid supply source to the second pilot pressure chamber 24. Furthermore, the second pilot solenoid valve 60 discharges the pilot fluid within the second pilot pressure chamber 24 to the atmosphere.

[0043] The first pilot solenoid valve 50 and the second pilot solenoid valve 60 are integrated with each other and arranged side by side. Specifically, the first pilot solenoid valve 50 and the second pilot solenoid valve 60 are located on the side of the first connecting block 15 opposite to the valve body 14. The first pilot solenoid valve 50 and the second pilot solenoid valve 60 are arranged side by side with respect to the first connecting block 15.

[0044] <Position 1 and Position 2 of Slide Valve Core 18>

[0045] The spool valve 18 can switch between a first position and a second position. For example, it is set to apply voltage from the circuit board 41 to the first solenoid section 51 and stop applying voltage from the circuit board 41 to the second solenoid section 61. Then, compressed fluid supplied 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. In this way, the spool valve 18 moves toward the second piston receiving recess 23. As a result, the spool valve 18 switches to the first position, in which the supply port P is connected to the first output port A and the second output port B is connected to the second discharge port R2. When the spool valve 18 is switched to the first position, the supply port P and the second output port B are blocked, and the first output port A and the first discharge port R1 are also blocked.

[0046] Furthermore, for example, the voltage application from the circuit board 41 to the first solenoid section 51 is stopped, and the voltage application from the circuit board 41 to the second solenoid section 61 is performed. Then, compressed fluid supplied from the fluid supply source is supplied as pilot fluid to the second pilot pressure chamber 24 by means of 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 means of the first pilot solenoid valve 50. In this way, the spool valve 18 moves toward the first piston receiving recess 21. As a result, the spool valve 18 switches to the second position, in which the supply port P is connected to the second output port B, and the first output port A is connected to the first discharge port R1. When the spool valve 18 is switched to the second position, the supply port P and the first output port A are blocked, and the second output port B and the second discharge port R2 are also blocked.

[0047] In this way, the first pilot solenoid valve 50 supplies and discharges pilot fluid to the first pilot pressure chamber 22, and the second pilot solenoid valve 60 supplies and discharges pilot fluid to the second pilot pressure chamber 24. The spool valve 18 then moves back and forth within the spool valve orifice 17 between the first and second positions. By switching the spool valve 18 between the first and second positions, the connection between the ports can be switched. Therefore, the main valve section 12 can switch the connection between multiple ports by supplying and discharging pilot fluid to the first pilot pressure chamber 22 and the second pilot pressure chamber 24 respectively. Figure 1 This indicates that the slide valve core 18 is in the second position.

[0048] <First conductive component 52>

[0049] like Figure 2As shown, the first pilot solenoid valve 50 has a first conductive member 52. 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 forms a positive line, and the other of the two first conductive members 52 forms a negative line. Each first conductive member 52 is, for example, columnar.

[0050] <First cylindrical portion 53>

[0051] 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 end of one of the two first conductive members 52 opposite to the first solenoid portion 51, that is, the front end. The first cylindrical portion 53 is cylindrical. The front end of each first conductive member 52 protrudes outward from 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 front end of each first conductive member 52. The first pilot solenoid valve 50 is disposed on the base portion 30, wherein the opening of the first cylindrical portion 53 opens toward the base portion 30. Therefore, the front end of each first conductive member 52 extends toward the base portion 30.

[0052] 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 gasket 54 is mounted in the first mounting groove 53a. The first lip gasket 54 is made of rubber. The first lip gasket 54 is annular.

[0053] <Second conductive component 62>

[0054] 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 forms a positive line, and the other of the two second conductive members 62 forms a negative line. Each second conductive member 62 is, for example, columnar.

[0055] <Second cylindrical portion 63>

[0056] 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 end of one of the two second conductive members 62 opposite to the second solenoid portion 61, i.e., the front end. The second cylindrical portion 63 is cylindrical. The front end of each second conductive member 62 protrudes outward from 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 front end of each second conductive member 62. The second pilot solenoid valve 60 is disposed on a base portion 30, wherein the opening of the second cylindrical portion 63 opens toward the base portion 30. Therefore, the front end of each second conductive member 62 extends toward the base portion 30.

[0057] The axial direction of the second cylindrical portion 63 is the same as that of the first cylindrical portion 53. The extending direction of the front end of each second conductive member 62 is the same as that of the front end of each first conductive member 52.

[0058] 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 gasket 64 is mounted in the second mounting groove 63a. The second lip gasket 64 is made of rubber. The second lip gasket 64 is annular.

[0059] <Connecting Component 70>

[0060] The solenoid valve manifold 10 includes a connecting member 70. The connecting member 70 has a base 71, a first connecting portion 80, and a second connecting portion 90. The connecting member 70 is disposed on the base portion 30. Therefore, the first connecting portion 80 and the second connecting portion 90 are provided on the base portion 30. The connecting member 70 is constructed by integrating the first connecting portion 80 and the second connecting portion 90 with the base 71.

[0061] <Base 71>

[0062] like Figure 3 and Figure 4 As shown, the base 71 is flat. More specifically, the base 71 is thin plate-shaped. The base 71 is made of resin. When viewed from above in the thickness direction, the base 71 is rectangular plate-shaped. The base 71 has a first surface 711 and a second surface 712. The first surface 711 is the surface located at the first end in the thickness direction of the base 71. The first surface 711 is flat. The second surface 712 is the surface located at the second end 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.

[0063] The base 71 has two long side edges 71a extending along the long side direction X1 of the base 71, and two short side edges 71b extending along the short side direction W1 of the base 71. The two long side edges 71a extend parallel to each other. The two short side edges 71b extend parallel to each other. One of the two short side edges 71b connects the two long side edges 71a to each other at the first end in the long side direction X1. The other of the two short side edges 71b connects the two long side edges 71a to each other at the second end in the long side direction X1. Each of the two long side edges 71a has a curved portion 71c. The two curved portions 71c are curved into an arc shape such that they are concave in a direction approaching each other at the center of the corresponding long side edge 71a.

[0064] <Through Hole 72>

[0065] 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 in the center of the base 71. When viewed from the thickness direction of the base 71, the through hole 72 is rectangular in shape. The long side of the through hole 72 is aligned with the long side X1 of the base 71. When viewed from the thickness direction of the base 71, the through hole 72 is sandwiched between two curved portions 71c in the short side W1 direction of the base 71. Therefore, each curved portion 71c is recessed from its corresponding long side edge 71a toward the through hole 72 and bends into an arc shape. By forming two curved portions 71c in the base 71, the area around the through hole 72 in the base 71 can easily elastically deform in the short side W1 direction of the base 71.

[0066] The base 71 has extension holes 73 and 74. Extension hole 73 extends along the long side direction X1 of the base 71 and splits into two branches at the first end of the long side direction of the through hole 72. Extension hole 74 extends along the long side direction X1 of the base 71 and splits into two branches at the second end of the long side direction of the through hole 72. By forming extension holes 73 and 74 in the base 71, the area around the through hole 72 in the base 71 can more easily elastically deform in the short side direction W1 of the base 71.

[0067] <First connecting part 80>

[0068] like Figure 2 As shown, the first connecting portion 80 has a first terminal receiving portion 81 and a first connecting terminal 82. (As indicated...) Figure 4 As shown, the first terminal receiving portion 81 is cylindrical and protrudes from the first surface 711 of the base 71. The first terminal receiving portion 81 is, for example, rectangular cylindrical. The first terminal receiving portion 81 is positioned closer to the first end of the base 71 in the long side direction than the through hole 72 in the first surface 711 of the base 71. When the base 71 is viewed from above in the thickness direction, the first terminal receiving portion 81 is adjacent to the through hole 72 in the long side direction of the base 71.

[0069] like Figure 2As shown, the first terminal receiving portion 81 has two first terminal receiving chambers 83. The two first terminal receiving chambers 83 are arranged side by side in a direction perpendicular to the axial direction of the first terminal receiving portion 81. The two first terminal receiving chambers 83 are separated by a part of the first terminal receiving portion 81, namely a first partition wall 84. Each first terminal receiving chamber opens toward the second surface 712 of the base 71 through a corresponding first terminal insertion hole 85 formed in the base 71. Two first conductive member insertion holes 86 are formed on the front end surface of the first terminal receiving portion 81. Each first terminal receiving chamber 83 opens toward the front end surface of the first terminal receiving portion 81 through the corresponding first conductive member insertion hole 86.

[0070] The first connecting portion 80 has two first connecting terminals 82. Each of the two first connecting terminals 82 is housed in a corresponding first terminal housing chamber 83. Each first connecting terminal 82 allows a first conductive member 52 to be inserted and connected, the first conductive member 52 passing through a first conductive member insertion hole 86 and inserted into the first terminal housing chamber 83. Therefore, each first connecting terminal 82 is housed in its corresponding first terminal housing chamber 83 in such a manner that the first conductive member 52, which passes through the first conductive member insertion hole 86 and is inserted into the first terminal housing chamber 83, can be inserted and connected to the first connecting terminal 82.

[0071] The end of each first connecting terminal 82 opposite to the first conductive member 52 passes through the corresponding first terminal insertion hole 85 and is electrically connected to the circuit board 41. Therefore, each first connecting terminal 82 electrically connects the corresponding first conductive member 52 to the circuit board 41. Thus, the first connecting portion 80 allows the first conductive member 52 to be inserted and connected, and electrically connects the first conductive member 52 to the circuit board 41.

[0072] <Second connecting part 90>

[0073] The second connecting portion 90 has a second terminal receiving portion 91 and a second connecting terminal 92. For example... Figure 4 As shown, the second terminal housing 91 is cylindrical and protrudes from the first surface 711 of the base 71. The second terminal housing 91 is, for example, rectangular cylindrical. The second terminal housing 91 is positioned closer to the second end of the base 71 in the long side direction than the through hole 72 in the first surface 711 of the base 71. When the base 71 is viewed from above in the thickness direction, the second terminal housing 91 is adjacent to the through hole 72 in the long side direction of the base 71.

[0074] like Figure 2As shown, the second terminal receiving portion 91 has two second terminal receiving chambers 93. The two second terminal receiving chambers 93 are arranged side by side in a direction perpendicular to the axial direction of the second terminal receiving portion 91. The two second terminal receiving chambers 93 are separated by a part of the second terminal receiving portion 91, namely a second partition wall 94. Each second terminal receiving chamber opens toward the second surface 712 of the base 71 through a corresponding second terminal insertion hole 95 formed in the base 71. Two second conductive member insertion holes 96 are formed on the front end surface of the second terminal receiving portion 91. Each second terminal receiving chamber 93 opens toward the front end surface of the second terminal receiving portion 91 through the corresponding second conductive member insertion hole 96.

[0075] The second connecting portion 90 has two second connecting terminals 92. Each of the two second connecting terminals 92 is housed in a corresponding second terminal housing 93. Each second connecting terminal 92 allows a second conductive member 62, which passes through the second conductive member insertion hole 96 and is inserted into the second terminal housing 93, to be inserted and connected. Therefore, each second connecting terminal 92 is housed in its corresponding second terminal housing 93 in such a manner that a second conductive member 62, which passes through the second conductive member insertion hole 96 and is inserted into the second terminal housing 93, can be inserted and connected to the second connecting terminal 92.

[0076] The end of each second connection terminal 92 opposite to the second conductive member 62 passes through the corresponding second terminal insertion hole 95 and is electrically connected to the circuit board 41. Therefore, each second connection terminal 92 electrically connects the corresponding second conductive member 62 to the circuit board 41. Therefore, the second connection portion 90 allows the second conductive member 62 to be inserted and connected, and electrically connects the second conductive member 62 to the circuit board 41.

[0077] <Installation Wall Part 42>

[0078] like Figure 2 and Figure 5 As shown, the base portion 30 has a mounting wall portion 42. The mounting wall portion 42 is for mounting the connecting member 70. 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 the 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 the surface opposite to the outer surface 42a, i.e., the surface for mounting the connecting member 70.

[0079] <Connection Port 43>

[0080] like Figure 2As shown, the base portion 30 has a first connection port 43. The first connection port 43 passes through the mounting wall portion 42. A first terminal receiving portion 81 is disposed inside the first connection port 43. Therefore, a first connecting portion 80 is disposed inside the first connection port 43. A first cylindrical portion 53 is inserted into the first connection port 43. At this time, the first terminal receiving portion 81 is inserted inside the first cylindrical portion 53. Therefore, the first pilot solenoid valve 50 has a first cylindrical portion 53, and the first connecting portion 80 is inserted into the inside of the first cylindrical portion 53. A first lip gasket 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 gasket 54 seals the first cylindrical portion 53 and the first connection port 43.

[0081] <Second Connection Port 44>

[0082] The base portion 30 has a second connection port 44. The second connection port 44 passes through the mounting wall portion 42. A second terminal receiving portion 91 is disposed inside the second connection port 44. Therefore, a second connection portion 90 is disposed inside the second connection port 44. A second cylindrical portion 63 is inserted into the second connection port 44. At this time, the second terminal receiving portion 91 is inserted inside the second cylindrical portion 63. Therefore, the second pilot solenoid valve 60 has a second cylindrical portion 63, and the second connection portion 90 is inserted into the inside of the second cylindrical portion 63. A second lip gasket 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 gasket 64 seals the space between the second cylindrical portion 63 and the second connection port 44.

[0083] <Insertion direction Z1>

[0084] When the first cylindrical portion 53 is inserted into the inside of the first connection port 43, each first conductive member 52 passes through the first conductive member insertion hole 86 and is inserted into the first terminal receiving chamber 83, thereby connecting to the first connecting terminal 82. Thus, each first conductive member 52 is connected to the first connecting portion 80. Furthermore, when the second cylindrical portion 63 is inserted into the inside of the second connection port 44, each second conductive member 62 passes through the second conductive member insertion hole 96 and is inserted into the second terminal receiving chamber 93, thereby connecting to the second connecting terminal 92. Thus, each second conductive member 62 is connected to the second connecting portion 90.

[0085] The insertion direction of each first conductive member 52 into the first connecting portion 80 is the same as the insertion direction of each second conductive member 62 into the second connecting portion 90. Furthermore, in the following description, the "insertion direction of each first conductive member 52 into the first connecting portion 80" and the "insertion direction of each second conductive member 62 into the second connecting portion 90" may sometimes be simply referred to as "insertion direction Z1".

[0086] <Prominent Part 45>

[0087] The base portion 30 has a protrusion 45. The protrusion 45 is columnar. The protrusion 45 protrudes from the mounting wall portion 42. Figure 5 As shown, when viewed from the thickness direction of the base 71, the protrusion 45 is rectangular in shape. The protrusion 45 has two long sides 45a and two short sides 45b, wherein the two long sides 45a extend along the long side direction of the protrusion 45, and the two short sides 45b extend along the short side direction of the protrusion 45. The two long sides 45a extend parallel to each other. The two short sides 45b extend parallel to each other. One of the two short sides 45b connects the two long sides 45a to each other at the first end along the long side direction. The other short side 45b connects the two long sides 45a to each other at the second end along the long side direction.

[0088] <Cardigan Protrusion 46>

[0089] The base portion 30 has two locking protrusions 46. The two locking protrusions 46 protrude from the two long side surfaces 45a of the protrusion 45, respectively. Therefore, the two long side surfaces 45a are the two side surfaces of the protrusion 45 on which the two locking protrusions 46 protrude, respectively.

[0090] like Figure 6 As shown, the side surfaces 46a of the two locking protrusions 46 are formed as inclined surfaces, which are inclined such that they are further away from each other the further away from the front end of the protrusion 45. Each locking protrusion 46 has a stepped surface 46b. The stepped surface 46b connects the end edge of the side surface 46a of the locking protrusion 46 opposite to the front end of the protrusion 45 to the long side surface 45a of the protrusion 45. The stepped surface 46b is perpendicular to the long side surface 45a of the protrusion 45. The two locking protrusions 46 can be locked with the portion around the through hole 72 in the base 71. The first surface 711 of the base 71 faces the inner surface 42b of the mounting wall portion 42.

[0091] <Guide Surface 75>

[0092] The through hole 72 has two guide surfaces 75. When the two locking protrusions 46 are inserted into the inside of the through hole 72, the two guide surfaces 75 guide the side surfaces 46a of the corresponding locking protrusions 46 respectively. The two guide surfaces 75 are inclined surfaces, which are inclined in such a way that the further away from the surface of the base 71 that faces the mounting wall 42, that is, the first surface 711, is from each other, the closer they are to each other.

[0093] <Relationship between connecting member 70 and base part 30>

[0094] like Figure 5 and Figure 6As shown, with the long side direction of the through hole 72 aligned with the long side direction of the protrusion 45, the connecting member 70 is positioned on the base portion 30 such that two locking protrusions 46 are inserted into the inner side of the through hole 72. At this time, the thickness direction of the base portion 71 is aligned with the insertion direction Z1. When the two locking protrusions 46 are inserted into the inner side of the through hole 72, the base portion 71 can elastically deform in the direction intersecting the insertion direction Z1. Specifically, when the two locking protrusions 46 are inserted into the inner side of the through hole 72, the portion of the base portion 71 surrounding the through hole 72 easily elastically deforms in the short side direction W1 of the base portion 71.

[0095] When the two locking protrusions 46 pass through the through hole 72, the portion around the through hole 72 in the base 71 returns to its original shape before elastic deformation. Furthermore, the portion around the through hole 72 in the base 71 engages with the stepped surfaces 46b of the two locking protrusions 46. Thus, by engaging the portion around the through hole 72 in the base 71 with the two locking protrusions 46, the connecting member 70 is mounted on the base 30. When mounted on the base 30, the connecting member 70 is only allowed to move slightly in the long side direction X1 and the short side direction W1 of the base 71.

[0096] [The Role of the Implementation Method]

[0097] Next, the function of this embodiment will be explained.

[0098] The connecting member 70 is mounted on the base portion 30, wherein the connecting member 70 is integrally formed by the first connecting portion 80 and the second connecting portion 90 with the base portion 71. Therefore, the problem of the relative position between the first connecting portion 80 and the second connecting portion 90 deviating from the predetermined position will not occur. Therefore, the first conductive member 52 and the second conductive member 62 can be easily inserted and connected to the first connecting portion 80 and the second connecting portion 90, respectively.

[0099] For example, when voltage is applied from circuit board 41 to the first solenoid section 51 and the application of voltage from circuit board 41 to the second solenoid section 61 is stopped, the slide valve core 18 switches to the first position. When the slide valve core 18 switches to the first position, 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 pressurized fluid from the fluid pressure device is discharged to the outside via the second discharge flow path 36 via the second output flow path 34, the second output port B, and the second discharge port R2.

[0100] On the other hand, such as Figure 1As shown, for example, when the voltage applied from the circuit board 41 to the first solenoid section 51 is stopped, and the voltage applied from the circuit board 41 to the second solenoid section 61 is applied, the slide valve core 18 switches to the second position. When the slide valve core 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 pressurized fluid from the fluid pressure device is discharged to the outside via the first discharge flow path 35 via the first output flow path 33, the first output port A, and the first discharge port R1.

[0101] [Effects of the Implementation Method]

[0102] The above implementation method can achieve the following effects.

[0103] (1) The connecting member 70 is installed on the base portion 30, wherein the connecting member 70 is integrally formed by the first connecting portion 80 and the second connecting portion 90 and the flat base portion 71. In this way, the problem of the relative position between the first connecting portion 80 and the second connecting portion 90 deviating from the predetermined position will not occur. Therefore, the first conductive member 52 and the second conductive member 62 can be easily inserted and connected to the first connecting portion 80 and the second connecting portion 90, respectively.

[0104] Furthermore, when the two locking protrusions 46 are inserted into the inside of the through hole 72, the base 71 can elastically deform in a direction intersecting the insertion directions of the first conductive member 52 and the second conductive member 62 toward the first connecting portion 80 and the second connecting portion 90, respectively. Therefore, in order to install the connecting member 70 onto the base portion 30, it is not necessary to provide, for example, an elongated plate-shaped locking protrusion on the connecting member 70 that can lock into the recess of the base portion 30.

[0105] For example, when an elongated plate-shaped locking protrusion is provided on the connecting member 70, a certain length of the locking protrusion is required to allow for elastic deformation. Therefore, the size of the solenoid valve manifold 10 becomes larger due to the need to ensure sufficient space for the locking protrusion. However, in this embodiment, the connecting member 70 is mounted to the base portion 30 by engaging with the two locking protrusions 46 around the through hole 72 in the base 71. Therefore, since the connecting member 70 can be mounted to the base portion 30 even without the elongated plate-shaped locking protrusion, the size of the solenoid valve manifold 10 can be miniaturized. In this way, the first conductive member 52 and the second conductive member 62 can be easily inserted and connected to the first connecting portion 80 and the second connecting portion 90, respectively. Furthermore, the size of the solenoid valve manifold 10 can be miniaturized.

[0106] (2) The side surfaces 46a of the two locking protrusions 46 are inclined surfaces, which are inclined such that the further away from the front end of the protrusion 45, the further apart they are from each other. The two guide surfaces 75 of the through hole 72 are inclined surfaces, which are inclined such that the further away from the face of the mounting wall portion 42 in the base 71, the closer they are to each other. Thus, when the two locking protrusions 46 are inserted into the inside of the through hole 72, each guide surface 75 of the through hole 72 guides the side surface 46a of the corresponding locking protrusion 46. Therefore, since the two locking protrusions 46 can be easily inserted into the inside of the through hole 72, the connecting member 70 can be easily installed on the base portion 30.

[0107] (3) A rubber first lip gasket 54 is provided between the outer peripheral surface of the first cylindrical portion 53 and the inner peripheral surface of the first connecting port 43, which seals the first cylindrical portion 53 and the first connecting port 43. A rubber second lip gasket 64 is provided between the outer peripheral surface of the second cylindrical portion 63 and the inner peripheral surface of the second connecting port 44, which seals the second cylindrical portion 63 and the second connecting port 44. In this way, the 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 the elastic deformation of the first lip gasket 54 and the second lip gasket 64. Therefore, it is easier to insert and connect the first conductive member 52 and the second conductive member 62 to the first connecting portion 80 and the second connecting portion 90, respectively.

[0108] [Example of Change]

[0109] Furthermore, the above-described embodiments can also be modified as follows. The above-described embodiments and the following modifications can be combined and implemented with each other within the scope of technical inconsistency.

[0110] In this embodiment, the two locking protrusions 46 may not protrude from the two long sides 45a of the protrusion 45, but rather from the two short sides 45b of the protrusion 45. In this case, when the two locking protrusions 46 are inserted into the inside of the through hole 72, the portion around the through hole 72 in the base 71 elastically deforms in the long side direction X1 of the base 71. That is, the base 71 only needs to be able to elastically deform the portion around the through hole 72 in the base 71 in a direction intersecting the insertion direction Z1 when the two locking protrusions 46 are inserted into the inside of the through hole 72. As long as the portion around the through hole 72 in the base 71 is locked with the two locking protrusions 46, the connecting member 70 is installed on the base 30.

[0111] In this embodiment, the side surfaces 46a of the two locking protrusions 46 may not be inclined surfaces that are further apart from each other the farther away from the front end of the protrusion 45. For example, the side surfaces 46a of the two locking protrusions 46 may be flat surfaces that extend in the same direction as the protrusion direction of the mounting wall portion 42 of the protrusion 45. In this case, the two guide surfaces 75 of the through hole 72 may also be inclined surfaces that are not inclined surfaces that are closer to each other the farther away from the base 71 facing the mounting wall portion 42. For example, the two guide surfaces 75 of the through hole 72 may be flat surfaces that extend in the same direction as the thickness direction of the base 71.

[0112] In this 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. This gasket can also be used to seal the space 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 also be a structure without the first lip gasket 54 and the second lip gasket 64.

[0113] • In this embodiment, the number of the first conductive member 52 is not particularly limited.

[0114] • In this embodiment, the number of the second conductive member 62 is not particularly limited.

[0115] • In this embodiment, the first pilot solenoid valve 50 may also be a structure that does not have the first cylindrical portion 53.

[0116] • In this embodiment, the second pilot solenoid valve 60 may also be a structure that does not have the second cylindrical portion 63.

[0117] • In the embodiments, the base 71 may also be a structure without the extension holes 73 and 74.

[0118] • In this embodiment, the shape of the protrusion 45 is not particularly limited. The shape of the through hole 72 can also be appropriately changed to match the shape of the protrusion 45.

[0119] In this embodiment, the solenoid valve 11 may, for example, be a four-port solenoid valve that omits the second discharge port R2. In short, the solenoid valve 11 only needs to have at least one discharge port. Alternatively, the solenoid valve 11 may also be a three-port solenoid valve having a supply port, an output port, and a discharge port.

[0120] As used in this specification, the term "ring-shaped" refers to any structure that is formed in a ring shape overall. The shape of "ring-shaped" includes, but is not limited to, circles, ellipses, and polygons with acute or obtuse angles. Similarly, the term "cylindrical" refers to any structure with a cross-sectional shape that is circular, elliptical, or polygonal with acute or obtuse angles, but is not limited to.

Claims

1. A solenoid valve manifold comprising a main valve section, a first pilot solenoid valve, a second pilot solenoid valve, a control section, and a base section. The main valve section is configured to have a first pilot pressure chamber and a second pilot pressure chamber, and to switch the connection between multiple ports by supplying and discharging pilot fluid to the first pilot pressure chamber and the second pilot pressure chamber respectively. The first pilot solenoid valve is configured to have a first solenoid section and to supply and discharge pilot fluid to the first pilot pressure chamber. The second pilot solenoid valve is configured to have a second solenoid section and to supply and discharge pilot fluid to the second pilot pressure chamber. The control unit has a circuit board configured to control the actuation of the first pilot solenoid valve and the second pilot solenoid valve. The base portion has the control unit. The first pilot solenoid valve and the second pilot solenoid valve are integrated together and arranged side by side. 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. The base portion is provided with a first connecting portion and a second connecting portion. The first connecting portion is configured to allow the first conductive member to be inserted and connected, and to electrically connect the first conductive member to the circuit board. The second connecting portion is configured to allow the second conductive member to be inserted and connected, and to electrically connect the second conductive member to the circuit board. The insertion direction of the first conductive member into the first connecting portion is the same as the insertion direction of the second conductive member into the second connecting portion. The solenoid valve manifold includes a connecting member, the connecting member having a flat base, and the first connecting portion and the second connecting portion being integrated with the base. The base has a through hole that extends through the base in the thickness direction. The base portion has two locking protrusions. The base is configured such that when the two locking protrusions are inserted into the inside of the through hole, the base can elastically deform in a direction intersecting the insertion direction. The connecting member is configured to be mounted on the base portion by means of the portion surrounding the through hole in the base and the two locking protrusions.

2. The solenoid valve manifold as described in claim 1, wherein, The base portion has a mounting wall and a columnar protrusion. The mounting wall is for mounting the connecting member. The protrusion protrudes from the mounting wall portion. The two locking protrusions protrude from two sides of the protrusion, respectively. The sides of the two locking protrusions are inclined surfaces, and these inclined surfaces are inclined in such a way that the further away from the front end of the protrusion, the further away from each other. The through hole has two guide surfaces. When the two locking protrusions are inserted into the inside of the through hole, the two guide surfaces guide the side surfaces of the two locking protrusions respectively. The two guide surfaces are inclined surfaces, and the inclined surfaces are inclined in such a way that the surfaces of the base facing the mounting wall are closer to each other the further away from the base.

3. The solenoid valve manifold as described in claim 1 or claim 2, wherein, The first pilot solenoid valve has a first cylindrical portion surrounding the first conductive member, and the first connecting portion is inserted into the inside of the first cylindrical portion. The second pilot solenoid valve has a second cylindrical portion surrounding the second conductive member, and the second connecting portion is inserted into the inside of the second cylindrical portion. The base portion has a first connection port and a second connection port. The first connecting portion is disposed inside the first connecting port, and the first cylindrical portion is inserted into the first connecting port. The second connecting portion is disposed inside the second connecting port, and the second cylindrical portion is inserted into the second connecting port. A first rubber lip gasket is provided between the outer peripheral surface of the first cylindrical portion and the inner peripheral surface of the first connecting port. The first lip gasket is configured to seal between the first cylindrical portion and the first connecting port. A second rubber lip gasket is provided between the outer peripheral surface of the second cylindrical part and the inner peripheral surface of the second connection port. The second lip gasket is configured to seal the second cylindrical part and the second connection port.

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