JP3149809B2 - Solenoid valve device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve device having a plurality of solenoid valves for controlling hydraulic pressures in a plurality of control oil passages opened at predetermined intervals on a predetermined mounting surface of a housing. Things.

[0002]

2. Description of the Related Art When a solenoid valve device having a plurality of solenoid valves for controlling hydraulic pressures in a plurality of control oil passages opened at predetermined intervals on a predetermined mounting surface of a housing, a solenoid is used. And a plurality of solenoid valves having a valve main body operated thereby are fixed to the housing in a state where one end thereof is fitted into the opening of the control oil passage.

[0003]

However, according to the above-mentioned conventional solenoid valve device, since a plurality of solenoid valves are mounted on the housing, the number of components is large, and there is a limit to downsizing. In particular, when a plurality of solenoid valves for hydraulic control are mounted on a valve body of an automatic transmission for a vehicle, cost reduction and downsizing are greatly demanded, and the above-mentioned disadvantages become remarkable.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electromagnetic valve device which has a small number of parts and can be downsized.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the present invention is to control hydraulic pressures in a plurality of control oil passages which are opened at predetermined intervals on a predetermined mounting surface of a housing. An electromagnetic valve device having a plurality of electromagnetic valves for performing
A first opposed wall having a first through hole formed therein and in close contact with the mounting surface of the housing ; and a second through hole facing the first opposed wall with a predetermined space therebetween and concentric with the first through hole. Formed
A second opposing wall that is, those a pair of first opposing wall and a second opposed wall and interconnected walls for connecting the yoke member of U-shaped cross section, to (b) the second opposing wall Second formed
One end is inserted into the opening of the plurality of control oil passages or the opening of the oil passage that supplies the original pressure through the first through hole formed at the predetermined interval in the first opposed wall while being inserted from the through hole. respectively fitting, the other end the second opposing wall
Of the control oil passage and the original pressure
The control port and the
And high pressure side port and drain port provided at the other end
A plurality of valve body having an over preparative, and a plurality of annular solenoid for controlling each of the plurality of the valve body inside the (c) the yoke member is to contain.

[0006]

According to the above configuration, the second opposing wall of the yoke member closely contacting the mounting surface of the housing is formed.
One end of each of the plurality of valve bodies supplies the opening or the original pressure of the plurality of control oil passages through the first through holes formed at predetermined intervals in the first opposed wall while being inserted through the two through holes. And a plurality of annular solenoids that respectively control the plurality of valve bodies are provided inside the yoke member, so that the yoke member is formed as one component and the number of components is reduced. At the same time, the yoke member does not need to be arranged between the valve bodies, so that the electromagnetic valve device can be downsized.

[0007]

Preferably, the opening of the oil passage for supplying the original pressure has a smaller diameter than the opening of the control oil passage and is located at the center of the opening, and One end of the main body is fitted, a high-pressure port for receiving the original pressure is opened at one end of the valve main body, and the other end of the valve main body is made to penetrate through the second opposing wall, and a drain is formed. A port is opened, and the control oil passage is selectively communicated with the high-pressure port or the drain port in response to the operation of the solenoid. In this way, each solenoid valve can function as a three-way valve.

Preferably, the yoke member is fixed to the housing by press-fitting one end of the valve body into an opening or a fitting hole of the housing. In this case, there is an advantage that a component for fixing the yoke member and each valve body is not required.

Preferably, the solenoid valve device further comprises a synthetic resin bobbin supporting the plurality of annular solenoids, and a synthetic resin connector having a plurality of terminals connected to the plurality of annular solenoids. , A synthetic resin cover member for covering the second opposed wall, and the synthetic resin bobbin, synthetic resin connector and synthetic resin cover member are integrally formed by injection molding. In this case, there is an advantage that the number of components can be further reduced as compared with a case where the synthetic resin bobbin, the synthetic resin connector, and the synthetic resin cover member are molded separately.

Preferably, a lead wire extending from the annular solenoid to a predetermined connector is fitted and fixed to a surface of the synthetic resin cover member on which the synthetic resin bobbin is erected. A groove is formed. With this configuration, the lead wires drawn from each of the plurality of annular solenoids are fitted and fixed in the grooves, so that the number of components for preventing interference between the lead wires can be reduced. There are advantages.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

1 and 2, a valve body 10 of a hydraulic control circuit, which is a part of a housing of an automatic transmission for a vehicle, has a pair of mounting surfaces 12 at right angles to each other as shown in FIG. , 14 are provided, and an electromagnetic valve device 17 including two electromagnetic valves 15, 16 is mounted on the pair of mounting surfaces 12, 14. On one of the pair of mounting surfaces 12, 14, openings (22, 2) of a plurality of (two in this embodiment) control oil passages 18, 20 are provided.
The solenoid valve device 17 controls the control oil pressure in the control oil passages 18 and 20, respectively. In the valve body 10,
Line oil passages 26 and 28 for introducing hydraulic oil having a relatively high original pressure
The openings 30 and 32 of the line oil passages 26 and 28 are opened at concentric positions in the openings 22 and 24.

The yoke member 34 is a member made of a magnetic material such as silicon steel for forming a part of a magnetic circuit.
A first opposing wall 36 closely contacted with the mounting surface 12 of the valve body 10, one side edge of a second opposing wall 38 opposing one side edge of the first opposing wall 36 across a predetermined space; A cross section is formed in a U-shape from a connecting wall 40 that connects the pair of first opposing walls 36 and the second opposing wall 38 to each other. The first opposed wall 36 is formed with two stepped holes 42 and 44 having a center-to-center distance A, and the second opposed wall 38 is concentric with the stepped holes 42 and 44. In addition, through holes 46 and 48 having a diameter larger than those of the stepped holes 42 and 44 are formed.

The valve bodies 50 and 52 are connected to the high pressure side ports 54 and
Elongated one end portions 58 and 60 each having an open end surface
And short tubular other ends 66, 68 having drain ports 62, 64 opened to the end faces, and a solid large diameter portion located between the one ends 58, 60 and the other ends 66, 68. 70,
72, and is provided with stepped cylindrical shaft members 74 and 76 made of a non-magnetic material such as stainless steel. The flange portions 9 of the shaft members 74 and 76
At 0 and 92, annular first core members 78 and 80 made of a magnetic material and fitted into the stepped holes 42 and 44 are fitted with the one ends 58 and 60 with a predetermined gap B therebetween. Have been. The predetermined gap B between the inner peripheral surfaces of the first core members 78 and 80 and the outer peripheral surfaces of the one end portions 58 and 60 functions as a control port that communicates with the control oil passages 18 and 20.
Further, annular stopper members 86 and 88 made of a non-magnetic material and fitted inside the second core members 82 and 84 made of a magnetic material such as silicon steel are fitted to the other ends 66 and 68. ing.

The shaft members 74 and 76 have flange portions 90 and 92 projecting radially at one end portions 58 and 60 of the large-diameter portions 70 and 72, and the high-pressure port 5
The high-pressure side opening / closing ports 94 and 96 communicating with the outer peripheral surfaces of the large-diameter portions 70 and 72 and opening near the flange portions 90 and 92 and the drain ports 62 and 64 and having the large-diameter. The outer peripheral surfaces of the parts 70 and 72 and the other end parts 66 and 68
Drain-side opening / closing ports 98 and 100 are provided at side positions. The large-diameter portions 70 and 72 are brought into contact with the flange portions 90 and 92 and the stopper members 86 and 88, respectively, so that the movement stroke is determined.
The tubular valve elements 106 and 108 made of a magnetic material, which are urged so as to abut the 6, 88, respectively, are slidably fitted.

The annular solenoids 110 and 112 are composed of cylindrical bobbins 114 and 116 made of synthetic resin and solenoid coils 118 and 120 each formed of a conductive wire such as an enamel wire wound around the outer peripheral surface of each of the bobbins 114 and 116. The two valve bodies 50 and 52 are provided inside the yoke member 34 having a U-shaped cross section.
By being disposed in the through hole 116, they are positioned around the two valve bodies 50 and 52, respectively. The outer peripheral surfaces of the second core members 82 and 84 are liquid-tightly fitted to the inner peripheral surfaces of annular projections provided on the end surfaces of the bobbins 114 and 116 on the second facing wall 38 side by O-rings. The space between the end faces of the first and second opposed walls 36 and 114 and the first opposed wall 36 is also sealed in a liquid-tight manner by an O-ring, and the mounting face 1 between the first opposed wall 36 and the valve body 10 is mounted.
2 between the second core members 82 and 84 and the stopper members 86 and 88, and between the stopper members 86 and 88 and the other end portions 66 and 68, respectively. They are fitted in a liquid-tight manner by press fitting or the like.

The large diameter portions 70, 7 of the shaft members 74, 76
2, the inner peripheral surfaces of the bobbins 114 and 116, the first core members 78 and 80, the second core members 82 and 84, and the stopper members 86 and 88 are liquid-tight annular spaces, each of which is a tubular valve. Valve chambers for accommodating the daughters 106 and 108 are formed, and the valve chambers are formed through cutouts formed in the inner peripheral surfaces of the first core members 78 and 80, a gap B functioning as a control port, and openings 22 and 24, respectively. And are connected to the control oil passages 18 and 20, respectively.

Accordingly, when the solenoids 110 and 112 are not excited, as shown in FIGS.
108 is brought into contact with the stopper members 86, 88 to close the drain-side opening / closing ports 98, 100 and open the high-pressure-side opening / closing ports 94, 96, so that the control oil passages 20, 22 are connected to the line oil passages 26, 28. Connected. However, in the excited state of the solenoids 110 and 112, the tubular valve elements 106 and 1
08 is the first against the urging force of the springs 102 and 104
The high-pressure-side opening / closing ports 94 and 96 are closed by being brought into contact with the core members 78 and 80, and the drain-side opening / closing ports 98,
Since 100 is opened, the control oil passages 20 and 22 are communicated with the drain ports 62 and 64.

The pair of side plates 122 and 124 and the top plate 126 are protective plates of the electromagnetic valve device 17 and are well known together with a synthetic resin connector 128, such as bolting and fitting. It is fixed to the valve body 10 by fixing means (not shown).

The solenoid valve device 1 configured as described above
7 is assembled as follows. First, as shown in FIG. 3, the yoke member 34 is fixed to the first opposing wall 36 so that the openings 22 and 24 and the stepped holes 42 and 44 are concentric.
Are mounted on the mounting surface 14 in a state of being brought into close contact with the mounting surface 12. Next, solenoids 110 and 112, which are formed by winding solenoid coils 118 and 120 around bobbins 114 and 116 in advance, are located inside the yoke member 34 and the central axes of the solenoids 110 and 112 have openings 22 and 24, respectively.
It is arranged to be concentric with. First core members 78, 8
0 is previously fitted to the flange portions 90 and 92 by press fitting or the like, and the second core members 82 and 84 and the stopper members 8 are fitted.
The shaft members 74 and 76 in which the front and rear members 6 and 88 are fitted into the other end portions 66 and 68 by press fitting or the like are inserted into the through holes 46 and 4.
8 and the other ends 66, 68
One end portions 58 and 60 are press-fitted into the openings 30 and 32, respectively, until the end surface thereof is flush with the outer side surface of the second opposed wall 38. Then, the side plates 122 and 124, the upper plate 126, and the connector 128 are attached.

As described above, according to the present embodiment, the through holes or stepped portions formed at the predetermined interval A in the first opposing wall 36 of the yoke member 34 which is in close contact with the mounting surface 12 of the valve body 10. Through the holes 42 and 44, the plurality of valve bodies 5
One ends 58, 60 of the first and second fittings 0, 52 are fitted into fitting holes, that is, openings 30, 32, which have smaller diameters than the openings 22, 24 in the openings 22, 24 of the control oil passages 18, 20, respectively. A plurality of annular solenoids 11 for controlling a plurality of valve bodies 50 and 52 inside the member 34
Since the yoke member 34 is provided as a single component, the number of components is reduced because the yoke member 34 is formed as a single component, and the yoke member does not need to be disposed between the valve bodies 50 and 52. The size can be reduced.

According to the present embodiment, the openings 30,
Reference numeral 32 denotes openings of the line oil passages 26 and 28 for supplying the original pressure, and high-pressure side ports 54 and 56 for receiving the original pressure are opened at the end faces of the one end portions 58 and 60 of the valve bodies 50 and 52. The other ends 66, 68 of the valve bodies 50, 52 are the second
Drain port 6
2 and 64 are opened, and the control oil passages 18 and 20 are selectively communicated with the high pressure side ports 54 and 56 or the drain ports 62 and 64 in response to the operation of the solenoids 110 and 112. There is an advantage that the valves 15, 16 can function as three-way valves.

In this embodiment, the yoke member 34 is
One end 58, 60 of the valve body 50, 52 is the valve body 1
Since the solenoid valve device 17 is fixed to the housing of the valve body 10 by press-fitting into the openings (fitting holes) 30 and 32 of the zero, the yoke member 34 and the valve bodies 50 and 52. There is an advantage that components for fixing are unnecessary.

Further, according to the present embodiment, the first opposing wall 36
Since the diameters of the through holes 46 and 48 of the second opposed wall 38 are formed larger than the diameters of the stepped holes 42 and 44,
The first core members 78 and 80 are previously fitted to the flange portions 90 and 92 by press fitting or the like, and the second core members 82 and 84 are fitted.
And shaft members 74, 7 in which stopper members 86, 88 are fitted in the other end portions 66, 68 by press fitting or the like.
6 can be inserted through the through holes 46, 48, so that the one end 58, 60 is opened 30 until the end surface of the other end 66, 68 is flush with the outer surface of the second opposed wall 38. , 32 has the advantage that assembly is simple and easy.

According to the present embodiment, the solenoid valve device 17
The overall size is reduced, and the protruding lengths of the one end portions 58, 60 of the valve bodies 50, 52 are shortened, so that there is an advantage that the oil passage is shortened and the responsiveness of the solenoid valves 15, 16 is improved.

Incidentally, a plurality of solenoid valves conventionally provided on the valve body 10 are configured as shown in FIG. 4, for example. In FIG. 4, each solenoid valve 130 is configured by projecting an oil passage component 136 fitted into an opening of the valve body 10 from one end of a cylindrical yoke member 134 that accommodates a solenoid 132. The valve body 10 is fixed by the fixing bracket 138.
Therefore, the number of parts is large, and the whole is large and expensive.

In the present embodiment, the mounting surface 12 of the valve body 10 and the yoke member 34 are made liquid-tight by being brought into close contact with each other, but they are fitted into the openings 22 and 24 in a liquid-tight manner. The protrusions may be provided to project from the first core members 78 and 80. Further, the one end portions 58 and 60 of the valve bodies 50 and 52 are press-fitted into openings (fitting holes) 30 and 32 of the valve body 10 so that the valve body 5 is fitted.
The valve bodies 0, 52 are fixed to the valve body 10 (part of the housing). One ends 58, 60 of the valve bodies 50, 52 are connected to the openings 22, 24 of the control oil passages 18, 20, respectively.
The valve bodies 50 and 52 may be fixed to the valve body 10 by being fitted into the valve body 10.

Next, another embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 5, the valve body 150 of the hydraulic control circuit is a part of the housing of the vehicular automatic transmission.
6 and 7, a mounting surface 152 and a mounting frame 154 projecting perpendicularly from the mounting surface 152 are provided. The mounting surface 152 surrounded by the mounting frame 154 has
An electromagnetic valve device 156 of this embodiment including a plurality of (four in this embodiment) electromagnetic valves described below having the same configuration is attached. On the mounting surface 152, four control oil passages (only the control oil passage 158 is shown in FIG. 7) are opened at openings 160, 162, 164, and 166 at a predetermined center interval C, respectively. The solenoid valve device 1
Reference numeral 56 controls the hydraulic pressures of the four control oil passages 158 and the like. In the valve body 150, a line oil passage for guiding hydraulic oil having a relatively high original pressure has openings 16 concentric with the openings 160 and the like of the four control oil passages 158 and the like.
Openings are provided at 8, 170, 172 and 174 (four places in total).

The yoke member 176 is an elongated member made of a magnetic material such as silicon steel for forming a part of a magnetic circuit, and is a first opposing wall closely contacted with the mounting surface 152 of the valve body 150. 178, a second opposed wall 180 opposed to the first opposed wall 178 with a predetermined space therebetween, one side edge of the pair of first opposed walls 178 and a second opposed wall 180
A cross section is formed in a U-shape from a connection wall 182 that connects the one side edge to each other. The first opposed wall 178 includes
Four equal-diameter through holes 184, 1 with a center-to-center spacing of C
86, 188 and 190 are formed in series, and the second opposing wall 180 is
8, through holes 192, 193, 194 and 195 concentric with and the same diameter as each of the through holes 184 and the like.
Are formed.

In order to protect the four solenoid valves 196, 197, 198 and 199 housed inside the mounting frame 154, a cover member 200 made of a synthetic resin having a generally flat plate shape is provided at an upper end opening of the mounting frame 154. The cover member 200 is fixed by well-known fixing means (not shown) such as bolting or fitting. The cover member 200 has a rectangular plate-like groove having a rectangular cross section into which the second opposing wall 180 is fitted. 202, and four through holes 204, 206,
208 and 210 are formed. One end of the cover member 200 has four metal terminals 2 for supplying power to the four solenoid valves 196 and the like.
A connector 220 made of synthetic resin integrally including 12, 214, 216 and 218 as inserts so as not to be detached is integrally formed.

Each of the four solenoid valves 196 and the like
Valve bodies 222, 224, 226 and 228, and annular solenoids 230, which control the respective valve bodies 222, etc.
232, 234 and 236, respectively. The configuration of the four valve bodies 222 and the like are the same, and the four solenoids 230 and the like are equivalent to each other. Therefore, the valve body 222 and the solenoid 230 that controls the valve body 222 will be representatively described.

The solenoid 230 is connected to the cover member 20.
A bobbin 238 made of a synthetic resin having a cylindrical shape and having the through-hole 204 of the cover member 200 erected on the back surface of the cover member 200 and extending along the axis thereof, and an enamel wire wound around the outer peripheral surface of the bobbin 238. The valve body 222 includes an annular solenoid coil 240 made of a conductive wire (enamel wire in this embodiment), and inside the through-hole 204 of the cover member 200 inside the yoke member 176 having a U-shaped cross section. By being arranged, it is located around the valve body 222. The solenoid 2
The bobbins 32, 234 and 236 are
8, is set up on the back surface of the cover member 200,
The four bobbins 238 and the like are formed at a predetermined interval C from each other. The cover member 200 and the connector 220
The four bobbins 238 and the like are integrally formed with each other by injection molding using a synthetic resin.

The valve body 222 includes a tubular member 244 fitted into the opening 160 of the control oil passage 158, and a long tubular end portion 24 having a high-pressure port 246 opened at an end face.
8, a short end 252 having a drain port 250 opened at the end face, and one end 248 and the other end 25 thereof.
2 and a solid large-diameter portion 254 and a stepped cylindrical shaft member 256 made of a non-magnetic material such as stainless steel. One end 248 of the shaft member 256 has an opening 168 of the line oil passage.
The valve body 15
It is attached to 0. The other end portion 252 has a cylindrical core member 258 made of a magnetic material such as silicon steel, and an annular stopper member 260 made of a nonmagnetic material and disposed at an enlarged diameter portion of a through hole of the core member 258. And are fitted.

The shaft member 256 has a large diameter portion 2
A high-pressure opening / closing port 264 communicating with the high-pressure port 246 and opening on the outer peripheral surface of the large-diameter portion 254 near the flange 262; The drain port 25
0 and the outer peripheral surface of the large diameter portion 254 and the other end 2
And a drain-side opening / closing port 266 that opens at the position on the 52nd side. The large diameter portion 254 has a flange 26
2 and the stopper member 260 are respectively brought into contact with each other, so that the movement stroke is determined.
A tubular valve element 270 made of a magnetic material, which is urged to abut against the stopper member 260 by 68, is slidably fitted.

The core member 258 is provided with the O-ring 272 so that the outer surface of the core member 258 and the inner surface of the through hole 242 of the bobbin 238 maintain liquid tightness.
0 through hole 192 and the through hole 20 of the cover member 200.
4 are fitted together. The O-ring 274 also seals the space between the end surface of the bobbin 238 on the first facing wall 178 side and the first facing wall 178 and the space between the through hole 204 of the cover member 200 and the tubular member 244. Is kept. Further, the other end 252 is connected to the core member 25.
8 is fitted in a liquid-tight manner by press fitting or the like.

The outer peripheral surface of the large diameter portion 254 and one end 248 of the shaft member 256, the inner peripheral surface of the through hole 242 of the bobbin 238, the end surface of the core member 258 on the large diameter portion 254 side, and the stopper member 260 The end face of the large diameter portion, the tubular member 244 and the opening 16 of the control oil passage 158
0 indicates that the tubular valve element 27 is a liquid-tight annular space.
0 is formed, and the valve chamber communicates with the control oil passage 158 at the bottom of the opening 160. In the non-excited state of the solenoid 230, as shown in FIGS. 5 and 7, the urging force of the spring 268 causes the tubular valve element 270 to contact the flange portion 262, thereby closing the high pressure side opening / closing port 264 and opening / closing the drain side. Since the opening 266 is opened, the control oil passage 158 is communicated with the drain port 250. However, solenoid 2
30, the tubular valve element 270 is
8, the high-pressure side opening / closing port 264 is opened and the drain-side opening / closing port 266 is closed, so that the control oil passage 158 is connected to the opening 168 of the line oil passage. Be communicated.

FIG. 8 is a sectional view taken along the line KK of FIG. As is clear from FIG. 8, the bobbin 23 of the cover member 200
On the surface on the side where 8 and the like are erected, four wires extending from the vicinity of each of the bobbins 238 and the like to the vicinity of the four terminals 212 and the like of the connector 220 (the locations indicated by Q in FIG. 8). Grooves 276, 278, 280 and 282 are formed respectively. Solenoid coil 240, etc., which is a conductive wire (enameled wire) wound around solenoid 230, etc. (total 4
) Are connected to lead wires 284, 286, 28, respectively.
8 and 290, which are fitted and fixed in the grooves 276, 278, 280 and 282, respectively. In this embodiment, the lead wires 284 and the like are fixed to the inside of the grooves 276 and the like by an adhesive (not shown) so as to be inseparable.

FIG. 9 is an enlarged perspective view showing the vicinity of the portion indicated by Q in FIG. The lead wires 284 etc. respectively fitted and led into the grooves 276 etc.
12 and so on. At the time of this connection, protrusions 292 and 294 are provided so that each lead wire can be easily led to the corresponding terminal.

The lead wires 296, 298, 300 and 302 at the other end of the solenoid coil 240 or the like which is a conductor (enamel wire) wound around the solenoid 230 or the like.
As shown in FIG. 10 (a sectional view taken along line LL in FIG. 8), an annular groove 306 formed coaxially with the projection 304 on the cylindrical surface of the cylindrical projection 304 provided on the cover member 200. And is fixed in a state of being electrically connected to the pipe 308 by a metal pipe 308 fitted on the outer peripheral surface of the projection 304. This electrical continuity is achieved, for example, by making a mechanical contact by caulking the pipe 308 at the caulking portion 310 or by welding each lead wire to the pipe 308 by so-called fusing. Fusing means melting an alloy sprayed on a contact portion of at least one of two members to be welded (here, a lead wire and a pipe) with the other, and welding these two members. Melting of the sprayed alloy is performed, for example, by applying a current to the alloy. The pipe 308 and the projection 304 may be auxiliaryly fixed to each other by screwing or the like. Since the pipe 308 is press-fitted into the fitting hole 310 formed in the mounting frame 154, the lead wire 296 and the like are electrically connected to the mounting frame 154. To apply a current to each of the solenoids 230 and the like, a voltage may be applied between the corresponding terminals 212 and the like and the valve body 150. At this time, by selecting a terminal to which a voltage is applied in an arbitrary combination, it is possible to allow a current to flow through each solenoid in an arbitrary combination.

The electromagnetic valve device 1 configured as described above
56 is assembled as follows. First, the solenoid coils 240 and the like (total of four bobbins 238 and the like)
Are wound to form four solenoids 230 and the like. Lead wires 284 and the like of each solenoid coil 240 and the like are fitted and fixed in the corresponding grooves 276 and the like, and are fixed to the corresponding terminals 212 and the like of the connector 220. Connected. Also, the lead wire 29 of each solenoid coil 240 etc.
In the present embodiment, 6 and the like are wound around an annular groove 306 formed in the circumferential direction on the outer peripheral surface of the projection 304 as shown in FIG. 11A, and as shown in FIG. The projection 304 and the pipe 308 are fitted with each other, and FIG.
As shown in FIG. 11D, after the pipe 308 is swaged at the swaged portion 312 as shown in FIG. 11C and the lead 296 and the pipe 308 are brought into mechanical contact with the inside of the swaged portion 312 as shown in FIG. , The pipe 308 is fitted in the fitting hole 31 formed in the mounting frame 154 of the valve body 150.
0 and is grounded via the mounting frame 154. A notch 314 is provided in the pipe 308 to prevent the lead 296 or the like from being cut between the pipe 308 and the fitting hole 310.

Next, after the second opposing wall 180 of the yoke member 176 is fitted in the groove 202 formed in the cover member 200, the first opposing wall 178 is
The cover member 200 is in close contact with the mounting surface 152 of the
Is attached to the attachment frame 154. Subsequently, the control oil passage 1
The tubular member 2 such as the valve body 222 is inserted into the opening 160 such as 58.
44 (four in total) are press-fitted. Further, after one end portion 248 of the shaft member 256 (four in total) is fitted to the opening 168 of the line oil passage at a depth D, the shaft member 256
A tubular valve element 270 (four in total) is fitted to the above, and a spring 268 (four in total) is disposed around the tubular valve element 296 and the like. Thereafter, the shaft member 256 is inserted into the through holes of the core members 258 (four in total) into which the stopper members 260 are fitted.
Is press-fitted.

As described above, according to this embodiment, the yoke member 17 that is in close contact with the mounting surface 152 of the valve body 150
6 through the through-holes 184 formed in the first opposing wall 178 at a predetermined center-to-center interval C.
One end 248 (four in total) of the valve body 22 and the like is fitted to the opening 168 of the line oil passage which is the oil passage for supplying the original pressure, and the periphery of the plurality of valve bodies 222 and the like inside the yoke member 176. Is provided with a plurality of annular solenoids 230 and the like provided on the yoke member 1 respectively.
Since the number of components is reduced because 76 is a single component, the size of the solenoid valve device 156 can be reduced because the yoke member 176 need not be disposed between the valve bodies 222 and the like.

The solenoid valve device 156 of this embodiment has
Two annular solenoids 230 (solenoid coil 2
Bobbin 238 to support (by supporting 40 etc.)
And a connector 220 having a terminal 212 and the like connected to each of the solenoids 230 and the like, and a cover member 200 for covering the second opposing wall 180.
38 and the like, the connector 220 and the cover member 200 are integrally formed by injection molding. In this case, there is an advantage that the number of parts can be reduced as compared with the case where the bobbin 238, the connector 220, etc., and the cover member 200 are formed as separate bodies.

On the surface of the cover member 200 on which the bobbin 238 and the like are erected, a lead wire 284 drawn from the solenoid 230 and the like to the terminal 212 and the like of the connector 220 is provided.
A groove 276 and the like for fitting and fixing the like are formed,
Since the lead wire 284 drawn out of the solenoid 230 etc. is fitted and fixed in the groove 276 etc., the number of components required for preventing interference between the lead wire 284 etc. can be reduced. There are advantages.

In this embodiment, one end 248 of the shaft member 256 such as the valve body 222 is connected to the valve body 15.
The valve body 222 is fixed to the valve body 150 by being press-fitted into the opening 168 of the line oil passage 0 (part of the housing).
However, the valve body 222 and the like may be fixed to the valve body 150 by being fitted into the opening 160 and the like of the control oil passage 158 and the like.

In this embodiment, the projections 292 are used to more reliably prevent the leads 284 and the like from coming into contact with each other and the leads 284 and the like from coming into contact with terminals other than the terminal 212 to which they are to be connected. In addition to the above, more projections may be provided. Instead of providing such protrusions 292 and the like, the grooves 276 and the like may be extended to the vicinity of the terminals 212 and the like.

In this embodiment, the lead wire 284 and the like are fixed in the groove 276 and the like so as not to be detached by the adhesive, but the lead wire 284 and the like are literally fitted into the groove 276 and the like (for example, The lead wire 284 or the like may be covered with a coating of vinyl or the like, and the coating may be irremovably fitted into the groove 276 or the like.) In a state where the lead wire 284 or the like is inside the groove 276 or the like, the groove 276 or the like is used. It may be fixed irremovably by pouring a filler into the container.

In this embodiment, the groove 276 and the like are provided for each lead wire 284.
Each of the leads may be fitted into the groove of the book such that the leads are not electrically connected to each other (for example, a plurality of leads having a coating of vinyl or the like may be fitted with an adhesive in one groove). May be fixed).

Next, still another embodiment of the present invention will be described with reference to the drawings.

The solenoid valve device of this embodiment is shown in FIGS.
1 includes four solenoid valves attached to the same valve body as the above-described embodiment shown in FIG. 1 and having the same valve body. The cover member 320 has a generally flat plate shape and one end of the cover member 320. A connector 322 for supplying power to each of the provided solenoid valves, and an annular solenoid 32 for controlling a valve body (not shown) of each of the four solenoid valves
The cylindrical bobbins 332, 334, 336 and 338 which support 4,326, 328 and 330 are shown in FIG.
As shown in (front view) and FIG. 13 (left side view), they are integrally formed by injection molding of a synthetic resin. However, in the present embodiment, at the time of the injection molding, generally strip-shaped metal plates 340, 342, 344, and 346 are used.
And 348 (five in total) are integrally molded into the connector 322 as inserts.

One end of the metal plate 340 or the like is connected to the connector 3
There are 22 terminals. Metal plates 340, 342, 34
The other ends of 4 and 346 (4 in total) are exposed to the outside near the four bobbins 332 and the like, respectively.
A solenoid coil 35 formed by winding a conductive wire (also in this embodiment, an enameled wire as in the previous embodiment) around the four bobbins 332 and the like.
0, 352, 354, and 356 are electrically connected to lead wires 358, 360, 362, and 364, respectively. The metal plate 348 is exposed to the outside near the four bobbins 332 and the like (total of four places), and is electrically connected to the lead wires 366, 368, 370 and 372 at the other end of the solenoid coil 350 and the like. Connected. Electrical conduction between each metal plate and the lead wire is performed by mechanical connection between each metal plate and each corresponding lead wire, fusing, soldering, and the like. The connection portion between the metal plate and each conductive wire may be bent so that each lead wire is irremovably inserted.

The yoke member 374 in this embodiment has a first opposing wall 376 and a second
It has a U-shaped cross section including the opposing wall 378 and the connecting wall 380. The second opposing wall 378 is a cover member 3
The cover member 32 is inserted into the flat groove 382 formed in the cover 20.
And through holes 384, 386, 388 and 390 formed to penetrate the bobbin 332 and the like, respectively, and through holes 392, 394, 3 formed in the first opposed wall 376.
96 and 398 are fitted so as to be concentric with each other.

As described above, the bobbin 332 for supporting the four annular solenoids 324 and the like of this embodiment, the connector 322 having the metal plate 340 and the like connected to each solenoid 324 and the like, and the second opposed wall And a cover member 320 that covers the bobbin 332.
The connector 322 and the cover member 320 are integrally formed by injection molding. In this case, there is an advantage that the number of components can be reduced as compared with the case where the bobbin 332 and the like, the connector 322 and the like, and the cover member 320 are molded separately.

While some embodiments of the present invention have been described with reference to the drawings, the present invention can be applied to other embodiments.

For example, the solenoid valve devices of the above-described embodiments each include two or four solenoid valves.
Three or five or more solenoid valves may be included.

The present invention can be variously modified without departing from the gist thereof.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line II of FIG. 2, showing an electromagnetic valve device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the solenoid valve device of the embodiment of FIG.

3 is a view for explaining an assembling process of the solenoid valve device of the embodiment of FIG. 1, showing a state in which a yoke member is mounted on a mounting surface of a valve body.

FIG. 4 is a sectional view showing a conventional solenoid valve.

FIG. 5 is a front view (partially sectional view) showing an electromagnetic valve device according to another embodiment of the present invention.

FIG. 6 is a plan view of the solenoid valve device of the embodiment of FIG.

7 is a cross-sectional view of the solenoid valve device of the embodiment of FIG.

8 is a sectional view of the solenoid valve device of the embodiment of FIG.

9 is an enlarged perspective view of a portion indicated by Q in FIG. 8 of the solenoid valve device of the embodiment of FIG. 5;

FIG. 10 is a sectional view taken along line LL of FIG. 8 of the solenoid valve device of the embodiment of FIG. 5;

11 is a view showing a method of assembling the portion shown in FIG. 10 of the solenoid valve device according to the embodiment of FIG. 5;

FIG. 12 is a front view showing a part of a solenoid valve device according to still another embodiment of the present invention.

FIG. 13 is a left side view of FIG.

[Description of sign]

10: Valve body (housing) 15, 16: Solenoid valve 17: Solenoid valve device 18, 20: Control oil passage 22, 24: Opening 30, 32: Opening (fitting hole) 34: Yoke member 36: First opposed wall 38: second opposed wall 40: connecting wall 42, 44: stepped hole (through hole) 50, 52: valve body 110, 112: solenoid 150: valve body (housing) 152: mounting surface 156: solenoid valve device 158: Control oil passages 160, 162, 164, 166: opening (opening of control oil passage) 168, 170, 172, 174: opening (opening of oil passage for supplying original pressure) 176: yoke member 178: first opposed wall 180 : Second opposed wall 182: connecting wall 184, 186, 188, 190: through hole 196, 197, 198, 199: solenoid valve 200: cover member (synthetic resin cover member) 2 0: connector (synthetic resin connector) 222, 224, 226, 228: valve body 230, 232, 234, 236: solenoid 238: bobbin (synthetic resin bobbin) 276, 278, 280, 282: groove 284, 286 288, 290: lead wire 320: cover member (synthetic resin cover member) 322: connector (synthetic resin connector) 324, 326, 328, 330: solenoid 332, 334, 336, 338: bobbin (synthetic resin bobbin) 358, 360, 362, 364: Lead wire 374: Yoke member 376: First opposed wall 378: Second opposed wall 380: Connecting wall 392, 394, 396, 398: Through hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F16K 31/06 F16H 61/00 F16H 63/02

Claims (3)

(57) [Claims] 1. A solenoid valve device comprising: a plurality of solenoid valves for controlling hydraulic pressures in a plurality of control oil passages opened at predetermined intervals on a predetermined mounting surface of a housing, wherein A first opposed wall formed with a first through hole formed at an interval and closely contacting the mounting surface of the housing; and a first opposed wall facing the first opposed wall with a predetermined space therebetween and concentric with the first through hole.
A yoke member having a U-shaped cross section, comprising: a second opposed wall having a second through hole formed therein; and a connecting wall interconnecting the pair of the first opposed wall and the second opposed wall . 2 Inserted from the second through hole formed in the opposing wall
Together are, through the first through-hole formed at the predetermined intervals in the first opposing wall, the one end portion to the opening of the oil passage for supplying an opening or source pressure control oil path of the plurality of are respectively fitted , The other end is fitted into the second through hole of the second opposing wall.
And the opening of the control oil passage and the opening of the oil passage for supplying the original pressure.
A control port and a high pressure side port respectively communicating with
A plurality of valve bodies having a drain port provided at the other end; and a plurality of annular solenoids for controlling the plurality of valve bodies inside the yoke member. Solenoid valve device. 2. The electromagnetic valve device, comprising: a synthetic resin bobbin supporting the plurality of annular solenoids; a synthetic resin connector having a plurality of terminals connected to the plurality of annular solenoids; A synthetic resin cover member for covering the opposing wall, and the synthetic resin bobbin,
The electromagnetic valve device according to claim 1, wherein the synthetic resin connector and the synthetic resin cover member are integrally formed by injection molding. 3. A groove for fitting and fixing a lead wire drawn from the annular solenoid to a predetermined connector is formed on a surface of the synthetic resin cover member on which the synthetic resin bobbin is erected. Claim 1 or 2
Solenoid valve device.