JPH087175Y2 - Assembly with multiple solenoid valves - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field The present invention relates to an assembly having a plurality of solenoid valves incorporated into, for example, an antilock braking system of a vehicle.

(Prior Art) Conventionally, as an assembly having such a plurality of solenoid valves, for example, a plurality of solenoid valves and a pair of first and second solenoid valves whose communication or cutoff is independently controlled by each solenoid valve are known. A base in which the fluid passages are provided in the same number as the solenoid valves, a magnet shell component element integrally formed with a plurality of magnet shells accommodating the respective solenoid valves, and a cover plate, and a plurality of solenoid valves and There is one in which a magnet outer cylinder component is fastened between a base and a cover plate to form a switching valve assembly (Japanese Patent Laid-Open No. 63-96378).

(Problem to be Solved by the Invention) However, in the above-mentioned conventional technique, when assembling the switching valve assembly, a plurality of electromagnetic valves are separately mounted at predetermined positions on the base, and then the magnet outer cylinders are mounted. Since the magnet outer cylinder constituent element must be placed on the base so as to house each solenoid valve, there is a problem that the number of assembling steps is large and the assembling work is complicated. Further, in the above-mentioned conventional technique, each magnet outer cylinder of the magnet outer cylinder constituent element serves both as a frame for forming a magnetic path for the solenoid valve and a frame for holding the solenoid valve. However, there is a problem in that the magnetic attraction force generated in each of the adjacent electromagnetic valves housed in is adversely affected.

The present invention has been made by paying attention to such a conventional problem, and the number of assembling steps is small, the assembling work is easy, the assembling workability is good, and the magnetic attraction force generated by each adjacent solenoid valve is generated. It is an object of the present invention to provide an assembly having a plurality of solenoid valves that does not adversely affect the performance and prevents creep due to the fastening force of the resin case that is held between the base and the pressing plate and fastened to the base. I am trying.

(Means for Solving the Problems) In order to achieve the above object, an assembly having a plurality of solenoid valves according to the present invention is independent of each solenoid valve on a base on which a plurality of solenoid valves are mounted. In an assembly having the same number of solenoid valves as a pair of first and second fluid passages whose communication or shutoff is controlled by a plurality of solenoid valves, the compartments for accommodating and retaining the plurality of solenoid valves and the shaft portion of the bolt are A resin case having a plurality of insertion holes to be inserted, and inserted into each of the insertion holes,
A metal tube having an axial length substantially the same as the axial length of each of the insertion holes and a pressing plate having a bolt hole that matches each of the insertion holes of the case are provided, and the case includes the base and the pressing plate. It is fastened to the base by bolts inserted in the bolt holes and the metal tubes in a state of being sandwiched between them.

(Operation) Then, in the above-mentioned assembly, when assembling this, it is sufficient to place the resin case in which each solenoid valve is stored and held in each storage chamber in advance on the base, that is, a plurality of solenoid valves are mounted on the base in a predetermined manner. This eliminates the need for the cumbersome work of placing each solenoid valve in the position separately and then placing the case that houses each solenoid valve on the base.In addition, the resin case is sandwiched between the base and the holding plate. Since the bolts inserted into the bolt holes and the metal tubes are fastened to the base, the case facilitates the positioning work of the solenoid valve and the metal tubes with the holding plate and the base. Further, since each solenoid valve is housed in each storage chamber partitioned by the resin case, there is no adverse effect on the magnetic attraction generated by each adjacent solenoid valve. In addition, the resin case is fastened to the base with bolts inserted into the bolt holes and the metal tube in a state of being sandwiched between the base and the pressing plate, and the axial length of each metal tube is Since the axial length of each insertion hole is substantially the same, each metal tube receives a part of the tightening force of each bolt.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a front view showing in partial cross section an assembly having a plurality of solenoid valves according to one embodiment. This assembly is incorporated into the vehicle's anti-lock braking system. This system controls the pressure in the wheel cylinder of a hydraulic anti-lock brake device (not shown) so that the wheel slip ratio is within a predetermined range when the vehicle is suddenly braked. is there.

As shown in FIGS. 1 and 2, the assembly includes three solenoid valves 1 to 3 and the solenoid valves 1 to 3 mounted thereon, and each solenoid valve 1 to 3 independently connects or disconnects. A pair of pressure source side fluid passages (first fluid passages) 4 and load side fluid passages (second fluid passages) 5 of which the number is the same as that of solenoid valves, and a modulator body 7 (base) of the modulator 6; and a resin case 8 for housing held in each of the electromagnetic valves 1-3 the storage chamber 8 _{1-8 3} which is divided and clamped has been modulator body between the pressing plate 9 the casing 8 is a modulator body 7 It is configured to be fastened to 7 with a plurality of bolts 10. A reservoir tank 11 is placed on the holding plate 9, and the tank 11 is attached to the modulator body 7 by bolts 12.
It is concluded with.

Each pressure source side fluid passage 4 is connected to an accumulator (not shown), and each load side fluid passage 5 is connected to an antilock control chamber (not shown) of the modulator 6. Each of the solenoid valves 1 to 3 is a normally closed solenoid valve (in-valve) that controls communication between the pressure source side fluid passage 4 and the load side fluid passage 5.
And the load side fluid passage 5 and the return port 11a of the reservoir tank 11
Each has a built-in solenoid valve (out valve) of the normally open type that controls communication.

As shown in FIGS. 3 and 4, each of the solenoid valves 1 to 3 includes a cylindrical coil unit 20 containing a coil and a valve unit 30 containing the in valve and the out valve. 30 to coil unit 20
The two units 20 and 30 are fixed by caulking. On the outer peripheral surface of each coil unit 20, a socket 21 having a terminal electrically connected to the coil is integrally formed, and each coil unit 20 is for forming a magnetic path that covers the entire outer periphery thereof. The metal frames 22, 22 are fitted together (see FIG. 4). An inlet side passage communicating with the pressure source side fluid passage 4 is provided at the lower end portion 30a of each valve unit 30, and an outlet side passage communicating with the return port 11a of the reservoir tank 11 is provided at the upper end portion 30b thereof. (See Figure 2). The lower end portions 30a are fitted to the mounting portions 4a of the pressure source side fluid passage 4, and the upper end portions 30b are fitted to the mounting recessed portions 11b of the reservoir tank 11 via O-rings.

Engaging claws 23 project from both sides of each socket 21. Each socket 21 has three connection cords 13.
Plugs 19 each holding one end of each are inserted (see FIGS. 2 and 3). Each of the three connection cords 13 is connected to a collective coupler 15 through a collective tube 14 made of resin. The three collecting tubes 14 are inserted through a thick collecting tube 16 made of resin. The collective coupler 15 is connected to a control device (not shown) provided on the vehicle body side.

The resin case 8, as shown in FIG. 5 and FIG. 6, having said storage chamber 8 _{1-8 3} therein, the upper end portion 30b of the respective valve unit 30 is inserted through a top wall 8a three has an insertion hole 8b ₁ ~8b _3, is and integrally formed such that the metal tubes 17 (see Figure 1) has four insertion holes 8c for inserting has to be. Each metal tube 17 has an axial length substantially the same as the axial length of each insertion hole 8c of the case 8, and also has an insertion hole 17a through which the shaft portion of the bolt 10 is inserted (first See figure).

Of the four insertion holes 8c, the one on the right side in FIG.
The two insertion holes 8c, 8c are provided on a line passing through the center of the insertion hole 8b _{3 on} the right side, and the two insertion holes 8c, 8c on the left side of the same figure are located at the center of the insertion hole 8b _{1 on} the left side. It is provided on the line that passes through. That is, the four insertion holes 8c are provided at positions where the case 8 can be effectively fastened with a small number of bolts. Further, the presser plate 9 has three insertion holes 9a (see FIG. 2) through which the upper end portions 30b of the respective solenoid valves 1 to 3 are inserted, and four bolt holes corresponding to the four insertion holes 8c. 9b (see FIG. 1).

A clamp portion 18 is integrally provided on one side surface of the case 8 for fixing the collecting tube 16 pulled out from the inside of the case 8 as shown in FIGS. 2 and 3. The clamp portion 18 is composed of a belt portion 18a wound around the collecting tube 16 and a stop hole 18b for inserting and stopping the belt portion 18a (see FIGS. 2, 5, and 6). Further, the wall portion 8d forming the respective receiving chamber 8 _{1-8 3} cases 8, locking hole 8e for engaging the engaging claw 23 of the respective socket 21 is provided.

When assembling the assembly having the above configuration, first,
The valve unit 30 of each solenoid valve 1 to 3 is previously inserted into the insertion hole 20a of the coil unit 20, and both units 20 and 30 are fixed by caulking. until the engaging claw 23 is engaged with each locking hole 8e of the case 8, placed in each accommodating chambers 8 _{1-8 3} cases 8 (Figure 2, see FIGS. 7 and 8). In this way, each solenoid valve 1
3 to ₃ are stored and held in the storage chambers 8 ₁ to 8 3 of the case 8.

Next, each plug 19 is inserted into the socket 21 of each solenoid valve 1 to 3 held in the case 8, and the collecting tube 16 is fixed to the case 8 by the belt 18a of the clamp portion 18 (see FIGS. 2 and 3). ).

Next, each of the solenoid valves 1 to 3 held in the case 8 is mounted on the modulator body 7 such that its lower end 30a is fitted to the mounting portion 4a of the modulator body 7.

Next, the insertion holes 9a of the holding plate 9 are fitted to the upper end portions 30b of the valve units 30 protruding upward from the respective insertion holes 8b of the case 8, and the shaft portions of the bolts 10 are attached to the bolts of the holding plate 8. Insert the holes 9b into the insertion holes 17a of the metal tubes 17 that have been inserted into the insertion holes 8c of the case 8 in advance,
Tighten the bolt 10. As a result, the case 8 is clamped between the modulator body 7 and the holding plate 9 and fastened to the modulator body 7.

Next, the reservoir tank 11 is placed on the holding plate 9 so that the mounting recess 11b is fitted to the upper end 30b of each valve unit 30, and the reservoir tank 11 is fastened to the modulator body 7 by bolts 12, This completes the assembly of the assembly.

(Effects of the Invention) As described in detail above, when assembling a plurality of solenoid valves, a resin case in which each solenoid valve is stored and held in each storage chamber in advance may be placed on the base, that is, the above-mentioned conventional example. Since the complicated work of separately mounting multiple solenoid valves at predetermined positions on the base as in the above is not necessary, and the case facilitates the positioning work of the solenoid valve and the metal tube with the holding plate and the base. Assembling work is easy and the assembly workability is good. Further, since each solenoid valve is housed in each compartment where the resin case is partitioned, there is no adverse effect on the magnetic attraction force generated in each adjacent solenoid valve as in the prior art.
Further, the resin case is clamped between the base and the pressing plate, and is fastened to the base by the bolts inserted in the bolt holes and the metal tube, and the axial length of each metal tube is Since the axial length of each insertion hole is substantially the same, each metal tube receives a part of the tightening force of each bolt. Therefore, the tightening force acting on the resin case clamped between the base and the pressing plate and fastened to the base is reduced, and deformation such as creep of the resin case due to the tightening force can be prevented.

[Brief description of drawings]

FIG. 1 is a view showing a main part of an assembly having a plurality of solenoid valves according to an embodiment of the present invention. FIG. 2 is a view taken in the direction of arrow II in FIG. 2, and FIG. 2 shows an assembly according to one embodiment. FIG. 3 is a perspective view showing a state where a plurality of solenoid valves are housed in a resin case, FIG. 4 is an exploded perspective view showing the solenoid valves, and FIG.
FIG. 6 is a perspective view showing a resin case, FIG. 6 is a view taken in the direction of arrow VI of FIG. 5, and FIG. 7 is a front view showing a state in which a plurality of solenoid valves are housed in a resin case in a partial cross section. FIG. 8 is a partially enlarged plan view of FIG. 7. 1 to 3 ... Solenoid valve, 4 ... Pressure source side fluid passage (first fluid passage), 5 ... Load side fluid passage (second fluid passage), 8 ...
… Resin case, 8 ₁ to 8 ₃ …… Storage room, 8c …… Insertion hole, 9
...... Presser plate, 9b ...... Bolt hole, 10 ...... Bolt, 17
...... Metal tube.

Front page continuation (72) Inventor Yoichi Sugimoto 1-4-1 Chuo, Wako-shi, Saitama, Ltd., Honda R & D Co., Ltd. (72) Inventor, Yoshinori Tanaka, Ueda City, Nagano 840 Kokubu, Nisshin Kogyo Co., Ltd. (72) Inventor Shohachi Setoguchi 3700 Shita Naka Wadayama, Sadohara-cho, Miyazaki-gun, Miyazaki Prefecture Roppu Honda Co., Ltd. Inside the lock (56) References Actual flat 1-176276 (JP, U) Actual flat 2-60780 (JP, U) Actual flat 1-165382 (JP, U) Actual public 60-32409 (JP, Y2 )

Claims (1)

[Scope of utility model registration request] 1. A set in which the same number of pairs of first and second fluid passages as the solenoid valves are provided on a base plate on which a plurality of solenoid valves are mounted and whose connection or blocking is controlled independently from each solenoid valve. In a three-dimensional space, a resin case having a plurality of compartments for accommodating and holding the plurality of solenoid valves and a plurality of insertion holes through which the shafts of the bolts are inserted, and the resin cases that are inserted into the respective insertion holes. A metal tube having an axial length substantially the same as the axial length and a pressing plate having a bolt hole matching each of the insertion holes of the case were provided, and the case was sandwiched between the base and the pressing plate. An assembly having a plurality of solenoid valves, characterized in that, in this state, the bolts are inserted into the bolt holes and the metal tubes to be fastened to the base.