JP5558789B2 - Solenoid valve device - Google Patents

Description

  The present invention relates to a solenoid valve device.

2. Description of the Related Art Conventionally, there has been known a method in which a hydraulic control of a hydraulic circuit leading to an automatic transmission of a vehicle such as an automobile is performed by a linear solenoid valve.
Generally, a linear solenoid valve has a valve body with a solenoid part attached to one end, a spool that is pressed in one direction by electromagnetic thrust generated in the solenoid part, and is fitted in a valve hole provided in the valve body. And an adjustment plug fixed to a mounting hole formed at the other end of the valve body, and a return spring that is contracted between the adjustment plug and the spool and urges the spool in a direction opposite to the electromagnetic thrust. (For example, refer to Patent Document 1).
The set load of the valve spring is adjusted by the press-fitting depth of the adjusting plug into the valve body, and the output hydraulic pressure output from the spool is adjusted by adjusting the set load of the return spring. Such a set load adjustment is performed when the linear solenoid valve is assembled.

  Conventionally, in hydraulic control (shift control) of an automatic transmission, generally, a plurality of linear solenoid valves as described above are used, and at the time of shift control, each shift stage is established so that the shift stage in which shift determination is made is established. Excitation, de-excitation, and current control of the linear solenoid valve are executed.

JP 2001-124231 A

  By the way, a switching valve for switching the fluid path and other components are interposed between each linear solenoid valve and the automatic transmission as an external device. For this reason, the adjustment of the set load, which is performed at the time of assembling the linear solenoid valve, is performed by predicting the final output pressure of the pressure fluid supplied to the automatic transmission via the switching valve and the constituent members. For this reason, it was difficult to manage the final output pressure.

  In addition, each linear solenoid valve, switching valve, and other components are generally arranged at different locations using the empty space around the automatic transmission in the engine room of the automobile. The liquid path resistance from each linear solenoid valve to the automatic transmission also varied. For this reason, adjustment and management of the final output pressure of the pressure fluid are complicated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an electromagnetic valve device that can easily adjust and manage the final output pressure of a pressurized fluid supplied to an external device and can adjust the output pressure with high accuracy. .

In order to solve the above-described problem, an electromagnetic valve device according to the present invention includes an upper body and a lower body, which are divided into upper and lower parts, and an integrated body in which a plurality of valves are integrated, and is formed between the upper body and the lower body. An intermediate valve is provided on the other side surface of the upper body, and a plurality of linear solenoid valves are attached to the upper body as the valve on the one side surface, and the other side surface is opposite to the one side surface side. A plurality of directional control valves are attached to the side, and the lower body has, as the valves, a plurality of shift valves for switching the flow of pressure fluid output from the plurality of linear solenoid valves, and a plurality of accumulators When, and a input-output port unit which input and output ports are formed by arranging a plurality of the plurality of accumulators are formed projecting from the lower body impact Characterized in that provided on the portion.

According to this solenoid valve device, as a valve, a plurality of linear solenoid valves are attached to one side and a plurality of directional control valves are attached to the other side, and a plurality of shift valves are provided. The lower valve body with multiple accumulators and input / output ports is unitized to form a solenoid valve device. This improves the flow of pressure fluid, improves the operating response of each valve, and assembles parts. It is possible to improve the performance.
According to this electromagnetic valve device, a plurality of linear solenoid valves, a plurality of direction switching valves, a plurality of shift valves, a plurality of accumulators, and an input / output port unit are arranged in an integrated manner on the upper body and the lower body. Therefore, it is possible to output the output pressure of the pressure fluid output from the electromagnetic valve device as a final output pressure supplied to an automatic transmission or the like as an external device mounted on an automobile or the like, for example. Become. Therefore, in the solenoid valve device, the final output pressure of the pressure fluid supplied to the external device can be adjusted and managed, and the advantage that the final output pressure is easily adjusted and managed is obtained.
In addition, since the pressure fluid output from the solenoid valve device can be directly supplied to the external device, the output pressure can be adjusted with high accuracy, and the external device can be controlled with high accuracy.
In addition, since the plurality of accumulators are provided in a protruding portion that is formed to protrude from the lower body, for example, an electromagnetic valve device is attached to a device such as an automatic transmission in an engine room of an automobile through the lower body. In some cases, the electromagnetic valve device can be mounted so that the protruding portion fits inside the device such as an automatic transmission, and the portion protruding outside the device such as the automatic transmission can be reduced. A solenoid valve device can be arranged. As a result, space can be saved and layout can be improved.

  Further, according to the present invention, each of the plurality of linear solenoid valves includes a pressure adjusting unit that adjusts an output pressure of the pressure fluid, and the pressure adjusting unit controls the pressure fluid supplied to an external device through the output port. It is preferable to adjust the final output pressure.

According to this solenoid valve device, the final output pressure of the pressure fluid supplied to the external device through the output port can be adjusted by adjusting the pressure adjusting units provided in the plurality of linear solenoid valves, respectively. The advantage is that it is easy to adjust and manage.
In addition, by adjusting each of the pressure adjusting sections, it is possible to accurately adjust the output pressure of the pressure fluid supplied to the external device, and thus the external device can be accurately controlled with the electromagnetic valve device.

Further, the present invention is the outer wall of the front Symbol protrusions, it is preferable to a structure in which ribs along the projecting direction of the projecting portion is formed.

According to this electromagnetic valve device, the rigidity of the protrusion provided with the accumulator can be secured, and an accumulator having a capacity can be suitably provided .

  According to the present invention, it is possible to obtain an electromagnetic valve device that can easily adjust and manage the final output pressure of the pressure fluid supplied to the external device and can adjust the output pressure with high accuracy.

It is the perspective view which looked at the solenoid valve device concerning one embodiment of the present invention from the upper body side. It is the perspective view which similarly looked at the solenoid valve apparatus from the lower body side. It is a top view of a solenoid valve device. It is a bottom view of a solenoid valve device. It is a side view of a solenoid valve device. It is a bottom view of an upper body. It is a top view of a lower body. It is sectional drawing which shows the structure of a linear solenoid valve. It is explanatory drawing which showed a part of lower body side in the cross section. It is a perspective view which shows the attachment state to an external apparatus. FIG. 3 is a hydraulic circuit diagram showing a part of the hydraulic pressure circuit of the electromagnetic valve device, in a state where output hydraulic pressure is acting on one external device. FIG. 5 is a hydraulic circuit diagram showing a part of the hydraulic circuit of the electromagnetic valve device and in a state where output hydraulic pressure is acting on the other external device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the present embodiment, an electromagnetic valve device that controls an automatic transmission mounted on a vehicle such as an automobile will be described as an external device. However, the present invention is not intended to limit external devices, systems, and the like that are controlled by the electromagnetic valve device.

(Schematic configuration of solenoid valve device)
The electromagnetic valve device 10 is a device that controls an automatic transmission 100 (see FIG. 10, the same applies hereinafter) mounted on a vehicle such as an automobile, and basically, as shown in FIG. A substantially rectangular parallelepiped body 12 in which an oil passage (liquid passage) through which pressure oil (oil) flows is formed, a plurality of linear solenoid valves 14 (14a to 14d), a plurality of three-way valves (direction switching valves) 16 (16a). 16c) and a plurality of shift valves 17a, 17b and other valve mechanisms, a plurality of accumulators 18 (18a-18c) and an input / output port unit 20 (see FIG. 2).
In other words, in the electromagnetic valve device 10 of the present embodiment, a plurality of components that are originally interposed between the plurality of linear solenoid valves 14 a to 14 d and the automatic transmission 100 are integrated together in the body 12. And assembled as an assembly. Therefore, there is no need to provide a component between the solenoid valve device 10 and the automatic transmission 100, and thus the pressure output from the input / output port unit 20 (see FIG. 2) of the solenoid valve device 10 is reduced. The oil output pressure can be the final output pressure of the pressure oil supplied to the automatic transmission 100.

The body 12 includes an upper body 12a and a lower body 12b that are divided into upper and lower parts, and these are stacked one above the other. The upper body 12a has a plurality of linear solenoid valves 14a to 14d attached to one side surface 22a orthogonal to the axis of the body 12 (longitudinal direction of the body 12), and is opposite to the one side surface 22a. A plurality of three-way valves 16a to 16c are attached to the other side surface 22b.
The lower body 12b has a plurality of shift valves 17a and 17b (see FIG. 9) provided therein, and accumulators 18a to 18c and an input / output port section 20 (see FIG. 2) are provided on the lower surface. ing.

  As shown in FIG. 2, between the upper body 12a and the lower body 12b, an oil passage R1 formed in the upper body 12a (see FIG. 6, the same applies hereinafter) and an oil passage R2 formed in the lower body 12b ( A flat plate-like intermediate plate 12c is provided to partially communicate with FIG.

  As shown in FIG. 10, such a solenoid valve device 10 is attached to, for example, a side wall 101 of an automatic transmission 100 disposed in an engine room with a bolt (not shown) and supplied from a hydraulic pump 105 serving as a hydraulic supply source. The final output pressure supplied to the clutch (not shown) provided in the automatic transmission 100 is output by adjusting the pressure oil. In the present embodiment, a mounting hole 102 is formed in the side wall 101 of the automatic transmission 100, and the lower body 12 b (see FIG. 1 and the like) of the electromagnetic valve device 10 is inserted into the automatic transmission 100 through the mounting hole 102. In this way, it is fixed to the side wall 101. Details of mounting will be described later.

Hereinafter, each part of the electromagnetic valve device 10 will be described.
<Upper body>
As shown in FIGS. 1 and 3, linear solenoid valves 14a to 14d and three-way valves 16a to 16c are alternately arranged on the upper surface of the upper body 12a along the longitudinal direction of the upper body 12a (the axial direction of the body 12). Linear solenoid valves 14a to 14d are attached in parallel so that the housing 31 protrudes from one side 22a which is the short direction of the upper body 12a (the direction orthogonal to the axial direction of the body 12). Three-way valves 16a to 16c are attached so that the housing 41 protrudes from the side surface 22b.

A plurality of flange portions 24 that open in a circular shape protrude from the one side surface 22 a, and a spool attachment hole 26 is provided inside the flange portion 24. The spool attachment hole 26 is formed so as to penetrate through the central convex portion 33 of the upper body 12a to the other side surface 22b (see FIG. 9), and is a blocking member 64 (with respect to the end side hole portion on the other side surface 22b. It is blocked by press-fitting (see FIGS. 8 and 9). Here, the central convex portion 33 functions as a valve body of the linear solenoid valves 14a to 14d.
In the present embodiment, four linear solenoid valves 14a to 14d are illustrated, but the present invention is not limited to this, and a plurality of linear solenoid valves 14 may be provided.
On one side surface 22a, a housing 31 containing a linear solenoid portion 30 (see FIG. 8) described later is mounted on the side of the flange portion 24.

  As shown in FIG. 3, a three-way valve mounting hole 40 is provided on the other side surface 22b. The three-way valve attachment hole 40 is formed as a blocking hole that terminates in the central convex portion 33 of the upper body 12a. Here, inside each three-way valve mounting hole 40, a valve body including a valve body (not shown) of the three-way valves 16a to 16c is inserted through the opening, and the side of the other side surface side 22b. The housing 41 in which a solenoid portion (not shown) is accommodated is attached so as to protrude.

Further, as shown in FIGS. 3 and 4, bolt insertion holes 36 for attaching the electromagnetic valve device 10 to the side wall 101 (see FIG. 10) of the automatic transmission 100 are provided at a predetermined interval on the peripheral edge of the upper body 12 a. A plurality are formed.
As shown in FIG. 6, a plurality of oil passages R <b> 1 are formed in the upper body 12 a so as to be exposed on the lower surface. The linear solenoid valves 14a to 14d and the three-way valves 16a to 16c are connected through the plurality of oil passages R1. When the shift control is performed on the automatic transmission 100, the linear solenoid valves 14a to 14d are energized and de-energized. Or current control is performed, and pressure oil flows through each oil passage R1.
Part of the oil passage R1 communicates with an oil passage R2 (see FIG. 7) provided in the lower body 12b through a communication hole (not shown) provided in the intermediate plate (see FIG. 2).

(Linear solenoid valve)
Since the plurality of linear solenoid valves 14a to 14d have the same configuration, the linear solenoid valve 14a will be described as an example here.
As shown in FIG. 8, the linear solenoid valve 14a is formed integrally with the upper body 12a and a housing 31 that is formed into a bottomed cylindrical shape with a magnetic metal material, for example, and in which the linear solenoid part 30 is housed. And a valve body 44 provided with a valve operating portion 60 therein.

  The linear solenoid unit 30 includes a coil assembly 50 housed in the housing 31, a cylindrical yoke 44 a that is integrally formed with the housing 31 and disposed inside the coil assembly 50, and an inner side of the coil assembly 50. A fixed core 46 is disposed along the axial direction and is disposed with a predetermined clearance with the cylindrical yoke 44a, and a movable core 48 is disposed so as to be displaceable inside the cylindrical yoke 44a.

The coil assembly 50 includes a coil bobbin 51 formed of a resin material and having flanges at both ends along the axial direction, and a coil 52 wound around the coil bobbin 51.
Note that the coil assembly 50 may be constituted by a bobbinless without the coil bobbin 51.

  Between the housing 31 and the coil 52, a resin sealing body 54 in which the outer peripheral surface of the coil 52 is molded is provided. The resin sealing body 54 includes a coupler portion 56 connected to the coil 52 and is made of resin. It is integrally formed with the material. The coupler unit 56 is provided with a terminal terminal 56 a that is electrically connected to the coil 52. The movable core 48 is formed by a cylindrical body through which the shaft 58 passes through the center.

  In such a linear solenoid unit 30, an exciting action is generated by turning on a power supply (not shown) and causing a current to flow through the coil 52, and the movable core 48 is integrally displaced toward the fixed core 46 by this exciting action. . Thereby, the spool 28 accommodated in the valve body 44 can be operated (advanced / retracted operation). As a result, the electromagnetic thrust proportional to the current value flowing through the coil 52 can be transmitted to the spool 28 by the movable core 48 to operate the spool 28.

  The valve operating unit 60 slides in the axial direction along a valve body 44 (upper body 12a) provided with an inlet port 60a, an outlet port 60b, a drain port 60c, and a breathing port 60d, and a space inside the valve body 44. And a spool 28 provided as possible. The spool 28 abuts on the tip of the shaft 58 fixed to the movable core 48 of the linear solenoid portion 30, and slides inside the valve body 44 by being pressed by the shaft 58 by sliding of the movable core 48.

The inlet port 60a receives the line pressure from the hydraulic pump 105 (see FIG. 10) input via the input / output port section 20 (see FIG. 2, the same applies hereinafter) of the lower body 12b (see FIG. 2, the same applies hereinafter). The oil passage R2 of the lower body 12b is inputted from the oil passage R1 of the upper body 12a through a communication hole (not shown) of the intermediate plate 12c.
The output hydraulic pressure output from the outlet port 60b flows through the oil passage R1 to the oil passage R2 of the lower body 12b through the shift valve 17a, the accumulator 18a, and the like (see FIG. 9), and from the input / output port section 20 to the automatic transmission. 100 is supplied.

The oil (fluid) discharged from the drain port 60c is returned to an oil reservoir or the like (not shown) through the oil passage R1 and the like.
Further, the breathing port 60d discharges oil introduced and led out between the breathing chamber 60e and the inside of the housing 31 (functioning as lubricating oil for the housing 31) in response to the advance / retreat operation of the movable core 48. ing. The fluid discharged through the breathing port 60d is returned into the automatic transmission 100.
In this embodiment, although it demonstrated using pressure oil, it is not limited to this, For example, it is possible to use the pressure fluid containing compressed air etc. as a working medium.

  Further, the inlet port 60a and the outlet port 60b communicate with each other on the outer peripheral surface of the spool 28 corresponding to the displacement position of the spool 28, or the outlet port 60b and the drain port 60c communicate with each other. An annular recess 28a is formed.

  Further, as shown in FIG. 8, the valve operating unit 60 includes a closing member 64 that closes the terminal side hole of the valve body 44 facing one end of the spool 28 to form a damper oil chamber 62, A return spring 66 is provided which is contracted between the closing member 64 and returns the spool 28 to the original position. A sealing ring 68 is provided on the outer peripheral surface of the closing member 64 to hold the press-fitting site liquid-tight or air-tight through an annular groove.

The closing member 64 functions as a pressure adjusting unit that adjusts the output pressure of the pressure oil output from the linear solenoid valve 14a, and the output pressure of the pressure oil can be adjusted by adjusting the press-fitting amount of the closing member 64. ing.
As described above, the electromagnetic valve device 10 includes a plurality of linear solenoid valves 14a to 14d, a valve mechanism such as a plurality of three-way valves 16a to 16c and a plurality of shift valves 17a and 17b, and a plurality of accumulators. 18a to 18c (refer to FIG. 2) and input / output port section 20 (refer to FIG. 2) are provided, and the output pressure of the pressure oil output from the linear solenoid valve 14a is passed through these components. This is the output pressure of the electromagnetic valve device 10 taken out from the input / output port unit 20. Therefore, regulating the pressure of the closing member 64 is not limited to simply adjusting the output pressure of the pressure oil output from the linear solenoid valve 14a, but directly adjusts the output pressure of the pressure oil output from the solenoid valve device 10. Adjustment, that is, the final output pressure of the pressure oil finally supplied to the automatic transmission 100 is directly adjusted.
Thereby, the final output pressure of the pressure oil supplied to the automatic transmission 100 can be accurately obtained by adjusting the press-fitting amount of the closing member 64.

  In addition, an orifice 70 is provided below the damper oil chamber 62. By providing the damper oil chamber 62, a suitable vibration damping function (oil vibration function) can be exhibited.

(3-way valve)
The plurality of three-way valves 16a to 16c have a known structure and are configured identically. In the three-way valves 16a to 16c, a bolt 78 is inserted into a mounting stay 76 fixed to the outer peripheral surface of the housing 41, and the bolt 78 is screwed into a fixing hole (not shown) formed on the other side surface 22b of the upper body 12a. It is fixed by joining. A coupler portion 42 is provided on the outer periphery of the housing 41.

<Lower body>
As shown in FIG. 9, the lower body 12b is fixed to the lower surface of the upper body 12a via the intermediate plate 12c. As described above, the plurality of shift valves 17a and 17b are provided therein, and the accumulator is disposed on the lower surface. 18a to 18c and an input / output port section 20 are provided (see FIG. 2).
An oil passage R2 is provided on the upper surface of the lower body 12b so as to face the oil passage R1 of the upper body 12a. A plurality of oil passages R2 are formed, and some of them communicate with the oil passage R1 on the upper body 12a side through the intermediate plate 12c.
As shown in FIG. 10, such a lower body 12 b is formed in the automatic transmission 100 through an attachment hole 102 formed in the side wall 101 when the electromagnetic valve device 10 is fixed to the side wall 101 of the automatic transmission 100. The whole is inserted and arranged.

  As shown in FIG. 9, each of the shift valves 17a and 17b includes a valve body 88 that switches between a communication state and a non-communication state between the oil passages R2, and a spring 90 that presses the valve body 88 in one direction. Prepare. A pilot hydraulic pressure signal is input to the shift valve 17a (17b) from the three-way valve 16a (16b). At the time of input, the valve body 88 is displaced in the axial direction against the spring force of the spring 90. The shift valve 17a (17b) is switched from the set state (initial state) to the operating state.

The plurality of accumulators 18a to 18c are juxtaposed in a projecting portion 18A projecting downward from the lower portion of the lower body 12b so that the axis thereof is perpendicular to the axis of the body 12, and the linear solenoid valve 14a ( 14b, 14c) exerts a damper function for removing the pulsation of the pressure oil output.
Since the plurality of accumulators 18a to 18c have the same configuration, the accumulator 18a will be described as an example here.
The accumulator 18a has a bottomed mounting hole 91 that opens on the lower surface of the protrusion 18A. A piston 92 and a spring 93 are mounted in the mounting hole 91, and the lower end opening of the mounting hole 91 is a spring 93. It is closed by a closing plate 94 that also serves as a receiving part. The closing plate 94 is fixed with bolts 95.

The piston 92 is urged toward the bottom of the mounting hole 91 by a spring 93, and hydraulic pressure flows from the oil passage R2 through a communication hole (not shown) formed in the bottom (upper surface) of the mounting hole 91. It moves to the closing plate 94 side. In this way, the piston 92 moves toward the closing plate 94, thereby forming a chamber (not shown) for storing pressure oil between the bottom of the mounting hole 91 and the piston 92.
In the accumulator 18a, a communication hole (not shown) formed in the mounting hole 91 is formed at the bottom of the mounting hole 91, so that the pressure oil flows directly into the chamber from the oil passage R2, thereby responsiveness. Smoothing of pressurized oil is possible.
In the present embodiment, as shown in FIG. 4, the accumulator 18 b disposed in the middle in the axial direction of the lower body 12 b is provided on both sides of the three accumulators 18 a to 18 c when viewed from the lower surface of the lower body 12 b. The accumulators 18a and 18c are provided so as to be biased in the lateral direction of the lower body 12b. Thereby, size reduction of the protrusion part 18A in a longitudinal direction is achieved in the structure where the accumulators 18a to 18c are arranged in parallel in the longitudinal direction of the lower body 12b.

As shown in FIGS. 1, 2, 4, and 5, ribs 19 are integrally formed on the outer wall (peripheral wall) of the protrusion 18 </ b> A along the protrusion direction of the protrusion 18 </ b> A (the vertical direction of the lower body 12 b). Has been. Each of the ribs 19 has a substantially triangular shape in a side view in which the upper side is wider than the lower side. As shown in FIG. 4, two ribs 19 are provided on each side in the longitudinal direction of the projecting portion 18A. Is provided. Among these, the two ribs 19 are formed on the side of the boss portion 18d provided on the protruding portion 18A.
The accumulators 18 a to 18 c are provided so that the axis thereof is orthogonal to the axis of the body 12, but the present invention is not limited to this, and the accumulators 18 a to 18 c may be provided parallel to the axis of the body 12. You may provide so that the axis line of the accumulator 18a-18c may be set to the angle used as an acute angle.

The input / output port portion 20 has a plurality of input ports 21 and a plurality of output ports 22 and is formed on the lower surface of the lower body 12b on the side of the protruding portion 18A. Each input port 21 and each output port 22 communicate with an oil passage R2 formed in the lower body 12b.
Such an input / output port section 20 can be connected to a connection port (not shown) provided in the mounting hole 102 (see FIG. 10) of the automatic transmission 100. The line pressure from the hydraulic pump 105 (see FIG. 10) of the automatic transmission 100 is introduced into the input port 21, and the line pressure introduced from the output port 22 is automatically adjusted to a predetermined pressure. Pressure oil to be supplied to hydraulic operation parts of a plurality of clutches (not shown) provided in the transmission 100 is derived.

  The electromagnetic valve device 10 according to the present embodiment is basically configured as described above. Next, the function and effect will be described with reference to the hydraulic circuits of FIGS. 11 and 12.

  In the hydraulic circuit shown in FIG. 11, the line pressure is connected to the inlet port 60a of the linear solenoid valve 14a and the first port 114 of the three-way valve 16a via a first oil passage 112a that branches from the middle. The outlet port 60b of the linear solenoid valve 14a is connected to the introduction port 116 of the shift valve 17a via the second oil passage 112b, and an accumulator 18a is provided in the middle of the second oil passage 112b.

  Further, the second port 118 of the three-way valve 16a is connected to the pilot port 120 of the shift valve 17a via the third oil passage 112c. Furthermore, the orifice 70 communicating with the damper oil chamber 62 (see FIG. 8) of the linear solenoid valve 14a is connected to an oil reservoir (not shown) via the fourth oil passage 112d, and the drain port 82 of the three-way valve 16a. Is connected to an oil reservoir (not shown) through a fifth oil passage 112e.

  The line pressure supplied to the inlet port 60a of the linear solenoid valve 14a is changed via the outlet port 60b according to the pressure regulation degree of the linear solenoid valve 14a corresponding to the current value supplied to the linear solenoid unit 30. 2 derived from the oil passage 112b.

  In such a hydraulic (hydraulic) circuit, as shown in FIG. 11, in the set state (initial state) of the shift valve 17a in which the valve body 88 is not displaced, it is derived from the outlet port 60b of the linear solenoid valve 14a. After the pressurized oil is introduced into the shift valve 17a via the second oil passage 112b, it is supplied to the hydraulic operating part of one clutch (not shown) connected to the predetermined output port 106, and the one clutch is engaged. It becomes a state.

On the other hand, when pressure oil is supplied from the second port 118 of the three-way valve 16a to the pilot port 120 of the shift valve 17a via the third oil passage 112c, the valve body 88 of the shift valve 17a is displaced. Switch from set state (initial state) to operating state.
As shown in FIG. 12, in the operating state of the shift valve 17a, the pressure oil introduced from the outlet port 60b of the linear solenoid valve 14a passes through a predetermined other output port 22 ( The other clutch (not shown) connected to the hydraulic actuator of FIG. 2 is engaged, and the other clutch is engaged.

  As described above, in this embodiment, the line pressure introduced from the predetermined input port 21 (see FIG. 2) includes the linear solenoid valve 14a, the three-way valve 16a, the shift valve 17a, the accumulator 18a, and the like in the body 12. In the state, the pressure oil adjusted to a desired pressure and adjusted with high accuracy can be supplied to the automatic transmission 100 from a predetermined output port 22 (see FIG. 2).

Here, the output adjustment of the pressure oil derived from the output port 22 of the input / output port unit 20 of the electromagnetic valve device 10 will be described.
The pressure oil output adjustment can be performed by the solenoid valve device 10 alone before the solenoid valve device 10 is attached to the automatic transmission 100.
Specifically, the pressure oil output is adjusted while supplying a predetermined line pressure to the input port 21 of the input / output port portion 20 of the electromagnetic valve device 10 and to the linear solenoid portion 30 of the linear solenoid valves 14a to 14d. Then, a predetermined current is supplied, and the pressure of the pressure oil output from the output port 22 is measured. At this time, as the line pressure to be supplied, the same pressure may be supplied to each input port 21, or a pressure corresponding to the configuration of the automatic transmission 100 may be supplied to each input port 21.

When a predetermined current is supplied to the linear solenoid section 30, the spool 28 is operated with an electromagnetic thrust proportional to the current value flowing through the coil 52 as described above, and the line pressure is output from the inlet port 60a to the outlet port 60b. The The pressure oil output from the outlet port 60b is output from the output port 22 of the input / output port unit 20 through the shift valve 17a and the accumulator 18a through the oil passage R1.
Then, the pressure of the pressure oil derived from the predetermined output port 22 is measured, and the press-fitting amount of the closing member 64 provided in the corresponding linear solenoid valve 14a (14b to 14d) is adjusted. Thereafter, when the pressure of the pressure oil reaches a predetermined pressure, the adjustment of the press-fitting amount of the closing member 64 is finished.

As described above, by adjusting the press-fitting amount of the closing member 64, the pressure oil output from the linear solenoid valve 14a is not simply adjusted, but the shift valve 17a connected to the outlet port 60b side of the linear solenoid valve 14a. The pressure oil output through the accumulator 18a can be adjusted, and the final pressure of the pressure oil finally supplied from the electromagnetic valve device 10 to the automatic transmission 100 can be directly adjusted.
Such adjustment is performed for each of the linear solenoid valves 14a to 14d. As a result, the final pressure of the pressure oil output from each output port 22 can be directly adjusted, and highly accurate pressure adjustment is possible.

  According to the electromagnetic valve device 10 of this embodiment described above, a plurality of linear solenoid valves 14a to 14d are attached to one side 22a as various valves, and a plurality of three-way valves 16a to 16c are attached to the other side 22b. The solenoid valve device 10 is configured by unitizing the worn upper body 12a and the lower body 12b having a plurality of shift valves 17a and 17b and a plurality of accumulators 18a to 18c and an input / output port unit 20. As a result, the flowability of the pressure oil is increased, and the operation responsiveness of each valve can be improved and the parts assemblability can be improved.

According to the electromagnetic valve device 10, the upper body 12a and the lower body 12b are provided with a plurality of linear solenoid valves 14a to 14d, a plurality of three-way valves 16a to 16c, a plurality of shift valves 17a and 17b, and a plurality of accumulators 18a. 18c and the input / output port unit 20 can be arranged in an integrated manner, so that the pressure oil pressure output from the electromagnetic valve device 10 can be output as the final pressure supplied to the automatic transmission 100. It becomes possible.
Therefore, in the solenoid valve device 10, the final pressure of the pressure oil supplied to the automatic transmission 100 can be adjusted and managed, and the advantage that the final pressure is easily adjusted and managed is obtained.

  In addition, since the pressure oil output from the solenoid valve device 10 can be directly supplied to the automatic transmission 100, the pressure of the pressure oil can be adjusted with high accuracy, and the automatic transmission 100 can be accurately adjusted. Can be controlled.

  Further, the electromagnetic valve device 10 is provided with integrated components including the linear solenoid valves 14a to 14d for outputting the final pressure to the automatic transmission 100, so that the automatic transmission 100 side It is not necessary to provide these components, and it is not necessary to provide an oil passage or the like for connecting these components on the automatic transmission 100 side. Therefore, the configuration on the automatic transmission 100 side can be simplified. In addition, since it is not necessary to form an oil passage that connects the components to the side wall 101 or the like of the automatic transmission 100, the structure of the side wall 101 can be simplified correspondingly, and the thickness can be reduced. As a result, the cost can be reduced.

Further, since the oil passage R1 formed in the upper body 12a is formed so as to be exposed on the lower surface of the upper body 12a, it can be easily formed from the lower surface of the upper body 12a, and the formation is simple. Similarly, since the oil passage R2 formed in the lower body 12b is formed so as to be exposed on the upper surface of the lower body 12b, it can be easily formed from the upper surface of the lower body 12b, and the formation is simple. .
Further, since the oil passage R1 and the oil passage R2 are located on the mating surfaces of the upper body 12a and the lower body 12b, they can be easily communicated with each other, and the intermediate plate 12c is interposed. The required oil passages R1 and R2 can be easily communicated with each other. Accordingly, the layout of the oil passages R1 and R2 can be easily set, and the degree of freedom in design is high.

Each of the plurality of linear solenoid valves 14 a to 14 d includes a closing member 64 that adjusts the pressure of the pressure oil, and the closing member 64 determines the final pressure of the pressure oil supplied to the automatic transmission 100 through the output port 22. Since it is adjustable, the final pressure of the hydraulic oil supplied to the automatic transmission 100 through the output port 22 can be adjusted by adjusting the closing members 64 provided in the plurality of linear solenoid valves 14a to 14d, The advantage is that the final pressure is easily adjusted and managed.
In addition, the pressure of the pressure oil supplied to the automatic transmission 100 can be accurately adjusted by adjusting each of the closing members 64, whereby the automatic transmission 100 is accurately controlled by the electromagnetic valve device 10. be able to.

Moreover, since the rib 19 along the protrusion direction of protrusion part 18A is formed in the outer wall of protrusion part 18A which encloses accumulator 18a-18c, it is possible to ensure the rigidity of protrusion part 18A provided with accumulators 18a-18d. The accumulators 18a to 18d having a capacity can be suitably provided.
Further, in the present embodiment, the electromagnetic valve device 10 can be attached to the automatic transmission 100 so that the protrusion 18A is accommodated in the automatic transmission 100, so that there are few portions protruding outside the automatic transmission 100. Thus, the space around the automatic transmission 100 in the engine room can be saved. As a result, the layout can be improved.

As mentioned above, although embodiment which concerns on this invention was described, this invention is not limited to these, The appropriate change implementation according to the main point of invention is possible.
For example, in the hydraulic circuit 110 shown in FIGS. 11 and 12, the case where the line pressure introduced from the predetermined input port 21 is supplied to the linear solenoid valve 14a and the three-way valve 16a is illustrated. The line pressure introduced from another predetermined input port 21 is adjusted to a desired pressure by another linear solenoid valve 14b (14c, 14d), and then the three-way valves 16a to 16c and the shift You may make it derive | lead-out directly with respect to the hydraulic action part of another clutch from other linear solenoid valves 14b (14c, 14d), without passing through valve 17a, 17b.

DESCRIPTION OF SYMBOLS 10 Solenoid valve apparatus 12 Body 12a Upper body 12b Lower body 12c Intermediate | middle plate 14 (14a-14d) Linear solenoid valve 16 (16a-16c) Three-way valve (direction switching valve)
17a, 17b Shift valve 18 (18a-18c) Accumulator 18A Protruding portion 19 Rib 20 Input / output port portion 21 Input port 22 Output port 22a One side surface 22b Other side surface 64 Closure member (pressure adjusting portion)
100 automatic transmission

Claims (3)

An electromagnetic valve device in which an integrated body in which a plurality of valves are integrated is formed from an upper body and a lower body divided vertically, and an intermediate plate is interposed between the upper body and the lower body,
The upper body has a plurality of linear solenoid valves attached to the one side surface as the valve, and a plurality of directional control valves attached to the other side surface opposite to the one side surface,
The lower body has, as the valve, a plurality of shift valves that switch the flow of the pressure fluid output from the plurality of linear solenoid valves, and an input that includes a plurality of accumulators, a plurality of input ports, and a plurality of input ports. An output port section ,
The solenoid valve device according to claim 1, wherein the plurality of accumulators are provided in a protruding portion formed protruding from the lower body . Each of the plurality of linear solenoid valves includes a pressure adjusting unit that adjusts an output pressure of the pressure fluid,
The electromagnetic valve device according to claim 1, wherein the pressure adjusting unit adjusts a final output pressure of a pressure fluid supplied to an external device through the output port. The outer wall of the front Symbol protrusions, the solenoid valve device according to claim 1 or claim 2, characterized in that ribs along the projecting direction of the projecting portion is formed.

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