JP2566726Y2 - Solenoid valve device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a housing having a guide tube extending cylindrically with a non-magnetic portion interposed, a fixed core fixed to one end of the guide tube, and a guide tube opposed to the fixed core. A plurality of solenoid valve constituent units each having a movable core housed therein and a coil surrounding a guide cylinder to exert a magnetic attraction force for attracting the movable core to the fixed core side are mounted on a common base, and each coil is mounted on a common base. Is connected to a conductor on a wiring board.

[0002]

2. Description of the Related Art Conventionally, such a device is, for example,
It is known from JP-A-38466.

[0003]

However, in the above-described conventional device, the wiring board is provided separately from each of the solenoid valve constituent units, and after the respective solenoid valve constituent units are attached to the base body. Since each coil is connected to the wiring board, it is difficult to say that the assembling workability is excellent.
In addition, grease or the like used when assembling each solenoid valve constituent unit to the base may adhere to the connection between each coil and the wiring board, and the conductivity of the connection may be impaired. Further, in the above-mentioned conventional device, a lead wire or a printed wiring is used as a conductor on a wiring board, and such a conductor has a relatively small current capacity, and thus has a limit in the magnetic attraction force obtained by a coil. .

The present invention has been made in view of such circumstances, and aims at improving the assemblability, preventing the conductivity of a connection portion between a wiring board and a coil from being impaired, and further increasing a relatively large current. It is an object of the present invention to provide an electromagnetic valve device in which the magnetic attraction force is increased by allowing the air to flow.

[0005]

In order to achieve the above-mentioned object, according to the invention of claim 1, each coil corresponds to one of the coils.
A plurality of separately formed leads made of conductive strips
Conductors in a laminated state where the frames are spaced apart from each other.
Disposed on a wiring board Te, they lead frame and distribution <br/> line board, pieces to a plurality of lead frames on said circuit board
A plurality of separately connected coils are embedded in a synthetic resin mold to form a wiring assembly.
Is done .

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIGS. 1 to 10 show a first embodiment of the present invention. FIG. 1 is a front view of a solenoid valve device, FIG. 2 is a view taken on line 2-2 of FIG. 1, and FIG. 1, 3 is a longitudinal sectional view of a normally open solenoid valve, FIG. 5 is a longitudinal sectional view of a normally closed solenoid valve, FIG. 6 is a side view of a wiring assembly, and FIG. 7 is a wiring assembly. FIG. 8 is a vertical sectional view of a three-dimensional body, taken along a line 7-7 in FIG. 8, and FIG.
9 is a sectional view taken along line 8-8, FIG. 9 is a sectional view taken along line 9-9 in FIG.
0 is a partial perspective view of the molding assembly.

1, 2, and 3, this solenoid valve device is used for an anti-lock brake device of a four-wheeled vehicle, and includes a left front wheel brake device, a right rear wheel brake device, and a right front wheel brake device. Normally open solenoid valves V _OFL and V
_ORR , V _OFR , V _ORL, and normally closed solenoid valves V _CFL , V _CRR , V _CFR , V _CRL arranged individually corresponding to the normally open solenoid valves V _OFL , V _ORR , V _OFR , V _ORL. And

On a base 21 formed of a magnetic metal in a block shape, four brake device side connection ports 25 _FL , 25 _RR , 25 _FR , 2 which are individually connected to each brake device.
5 _RL , a pair of master cylinder side connection ports 26 ₁ and 26 ₂ connected to a pair of output ports of a tandem type master cylinder (not shown), and a reservoir side connection port 27 connected to a reservoir (not shown). Thus to normally open electromagnetic valve V _OFL is capable of switching communication and interruption between the connection brake device side connection port 25 _FL and the master cylinder side port 26 _1, the normally closed electromagnetic valves V _CFL brake device side connection port 25 _FL and a switchable communication and blocking between the reservoir-side connection port 27, normally open electromagnetic valve V _ORR are capable of switching communication and interruption between the brake device side connection port 25 _RR and the master cylinder-side connection port 26 ₁ And
The normally closed solenoid valve V _CRR is connected to the brake device side connection port 25 _RR.
And the communication between the reservoir-side connection port 27 and the _normally- open solenoid valve V _OFR can be switched between the brake device-side connection port 25 _FR and the master cylinder-side connection port 26 _2.
Switching between communication and cutoff between normally closed solenoid valve V _CFR
Is capable of switching communication and interruption between the brake device side connection port 25 _FR and the reservoir side connecting port 27, normally open electromagnetic valve V _ORL is between the brake device side connection port 25 _RL and the master cylinder-side connection port 26 ₂ Communication and cutoff can be switched, and the normally closed solenoid valve V _CRL can switch between communication and cutoff between the brake device side connection port 25 _RL and the reservoir side connection port 27.

Each normally open solenoid valve V _OFL , V _ORR , V _OFR ,
V _ORL has basically the same configuration, and the normally closed solenoid valves V _CFL , V _CRR , V _CFR , and V _CRL have basically the same configuration. Type solenoid valve V
_OFL , V _ORR , V _OFR , and V _ORL are controlled by a normally-open solenoid valve V _OFL and a normally-closed solenoid valve V _CFL , V _CRR , V
The detailed configuration of _CFR and V _CRL will be described using a normally closed solenoid valve V _CFL .

In FIG. 4, a normally open solenoid valve V _OFL has a housing 31 _O having a cylindrical guide tube 30, a fixed core 32 _O fixed to one end of the guide tube 30, and a fixed core 32 _O opposed to the fixed core 32 _O. The movable core 33 and the fixed core 32 _O accommodated in the guide cylinder 30 and the spring 34 contracted between the movable core 33, and the movable core 33 is attracted to the fixed core 32 _O side against the spring force of the spring 34. And a coil 35 surrounding the guide cylinder 30 so as to exert a magnetic attraction force.
And a solenoid valve component unit 36 _o having a cylindrical yoke 37 surrounding the solenoid valves V _OFL , V _ORR , V _OFR ,
A holding plate 22 made of a magnetic metal common to V _ORL , V _CFL , V _CRR , V _CFR , and V _CRL is magnetically coupled to the housing 31 _O, and the holding plate 22 includes a plurality of, for example, eight bolts 24.
Is fastened to the base 21.

The housing 31 _O has a stepped cylindrical valve housing 38 _O made of a magnetic metal and the valve housing 3 _O.
And a guide cylinder 30 coaxially coupled to 8 _O. The valve housing 38 _O has a large-diameter portion 38 _OA , a middle-diameter portion 38 _OB and a small-diameter portion 38 _OC coaxially connected, and an annular groove 41 is provided on the outer surface of the middle-diameter portion 38 _OB . The guide cylinder 30 is formed of a non-magnetic material in a cylindrical shape, and is formed in a cylindrical shape with a magnetic material in a non-magnetic portion 39 which is coaxially connected to the large-diameter portion 38 _{OA so as} to form a step. And a magnetic part 40 coaxially connected to the magnetic part 39.

Meanwhile, the lower portion of the base body 21, a large径嵌Goana 42 fitting the large-diameter portion 38 _OA of the valve housing 38 _O in the housing 31 _O, wherein the valve housing 38 _O
Medium diameter fitting hole 43 having an inner surface surrounding medium diameter portion 38 _OB
, A small-diameter fitting hole 44 for fitting the small-diameter portion 38 _OC of the valve housing 38 _O , and a passage 45 _O are provided in steps from the bottom in order from the bottom, and the passage 45 _O is connected to the master cylinder side connection port 26 ₁ . Communicated. The large-diameter portion 38 _OA is provided with an annular seal member 46 that contacts the inner surface of the large-diameter fitting hole 42, and the small-diameter portion 38 _OC is an annular seal member 47 that contacts the inner surface of the small-diameter fitting hole 44. Is attached. Further, a filter 48 for covering the annular groove 41 is mounted on the middle diameter portion 38 _OB of the valve housing 38 _O. An annular chamber 49 formed between the filter 48 and the middle diameter fitting hole 43 is provided on the brake device side. It communicates with the connecting port 25 _FL.

In the guide cylinder 30, the valve housing 38 _O
A sealing member 50 is provided at the end on the side remote from the sealing member 5.
1 and fitted and fixed. Also, the valve housing 38 _O
The upper part of the inner valve seat member 54 having a valve hole 53 communicating with the passage 45 _O through the filter 52 mounted on the upper part of the valve housing 38 _O is fitted, it is fixed. Moreover the valve in the lower part of the housing 38 in _O, the non-magnetic portion 39 of the guide tube 30
A cylindrical fixed core 32 _O is fitted by partially fitting the inside thereof, and the fixed core 32 _O has an outer end opened in the annular groove 31 and has a medium diameter portion 38 _OB of the valve housing 38 _O. It is caulked to the valve housing 38 _O using a plurality of caulking recess 57 provided radially. Bearing member 58 is fixed to the fixed core 32 _O closer between further valve housing 38 _O in the valve seat member 54 and the fixed core 32 _O, is between the bearing member 58 and the valve seat member 54 a valve which communicates with the annular groove 41 A chamber 59 is formed.

[0015] Between the closing member 50 and the fixed core 32 _O in the housing 31 _O, the movable core 33 is accommodated. The movable core 33 is coaxially fixed with a rod 60 which penetrates the fixed core 32 _O coaxially and movably in the axial direction and has one end slidably supported by a bearing member 58.
Is slidably fitted to the closing member 50. Moreover Between the fixed core 32 _O and the movable core 33 are compressed state a spring 34 surrounding the rod 60, the movable core 33 is spring-biased in a direction away from the fixed core 32 _O by the spring 34.

One end of the rod 60 in the valve chamber 59 has a valve hole 5
A hemispherical valve body 61 capable of opening and closing the valve 4 is provided. The valve body 61 normally opens the valve hole 53 and opens the passage 45 _O, that is, the master cylinder side connection port 26 ₁ when the coil 35 is in the demagnetized state. The annular groove 41 communicates with the brake device side connection port _25FL .

[0017] The upper portion of the valve housing 38 _O in the housing 31 _O, differential pressure valve 62 which opens when the fluid pressure in the annular groove 41 is higher than the predetermined value than the fluid pressure in the passage 45 _O side, the valve It is arranged so as to bypass the hole 53.

The coil 35 is wound around a cylindrical bobbin 63 surrounding the guide cylinder 30.
One end face of which abuts the end face of the large-diameter portion 38 _OA in the valve housing 38 _O. The other end of the bobbin 63 has a small-diameter cylindrical portion 63 extending to be flush with the outer end of the guide cylinder 30.
a is provided integrally.

Normally closed solenoid valves V _CFL , V _CRR , V _CFR , V
_{The CRL} has many of its components identical to the above-described normally-open solenoid valves V _OFL , V _ORR , V _OFR , V _ORL, and the _normally- open solenoid valves V _OFL , V _ORR , V _OFR , The same components as those of V _ORL are _denoted by the same reference numerals, and the configuration of the normally closed solenoid valve V _CFL will be described below.

In FIG. 5, a normally closed solenoid valve V _CFR includes a housing 31 _C having a guide cylinder 30, a fixed core 32 _C fixed to one end of the guide cylinder 30, and a guide cylinder opposed to the fixed core 32 _C. the movable core 33 housed in 30, the spring 3 is mounted under compression between the fixed core 32 _C and the movable core 33
4, the coil 35 surrounding the guide tube 30 so as to exert a suction force for attracting the movable core 33 to the fixed core 32 _C side against the spring force of the spring 34, and a cylindrical yoke 37 surrounding the coil 35 an electromagnetic valve arrangement unit 36 _C with the housing 31 _C and the pressing plate 22 via the yoke 37 are magnetically coupled.

[0021] Housing 31 _C includes a valve housing 38 _C stepped cylindrical made of a magnetic metal, the valve housing 3
And a guide tube 30 which is coupled coaxially to 8 _C. The valve housing 38 _C is the large-diameter portion 38 _CA, medium diameter 38 _CB and the small-diameter portion 38 _CC is those formed by coaxially connected to the annular groove 41 is provided on the outer surface of the intermediate-diameter portion 38 _CB. The guide cylinder 30 is formed of a non-magnetic material in a cylindrical shape, and is formed in a cylindrical shape with a magnetic material on a non-magnetic portion 39 which is coaxially connected to the large-diameter portion 38 _CA at a step. And a magnetic part 40 coaxially connected to the magnetic part 39.

On the other hand, the lower portion of the base body 21, a large径嵌Goana 42 fitting the large-diameter portion 38 _CA of the valve housing 38 _C in the housing 31 _C, the valve housing 38 _C
Medium diameter fitting hole 43 having an inner surface surrounding _CB 38
, A small-diameter fitting hole 44 for fitting the small-diameter portion 38 _CC of the valve housing 38 _C , and a passage 45 _C are provided in steps from the bottom in order from the bottom, and the passage 45 _C is connected to the reservoir-side connection port 2.
7 is communicated. The large-diameter portion 38 _CA is provided with an annular seal member 46 that contacts the inner surface of the large-diameter fitting hole 42, and the small-diameter portion 38 _CC is an annular seal member 47 that contacts the inner surface of the small-diameter fitting hole 44. Is attached. Furthermore the diameter 38 _CB in the valve housing 38 _C is mounted a filter 48 which covers the annular groove 41, annular chamber 49 is a brake device side, which is formed between the middle径嵌Goana 43 and the filter 48 It communicates with the connecting port 25 _FL.

In the guide cylinder 30, the valve housing 38 _O
The ends of the spaced side from the fixed core 32 _C is formed in a bottomed cylindrical shape is fitted, it is fixed. Valve housing 38
At the top of the _C valve seat member 54 having a valve hole 53 communicating with the passage 45 _C through a filter 52 mounted on the upper part of the valve housing 38 _C is fitted and secured. Also the valve housing 38 in _C, the bearing member 58 to form a valve chamber 59 communicating with the annular groove 41 between the valve seat member 54 is fixed.

[0024] Between the fixed core 32 _C and the bearing member 58 in the housing 31 _C, the movable core 33 is accommodated. The movable core 33, the rod 60 the other end is inserted into the fixed core 32 in the _C one end is slidably supported by the bearing member 58 is coaxially fixed. Moreover, the fixed core 32
Between _C and the movable core 33 are compressed state a spring 34 surrounding the rod 60, the movable core 33 is spring-biased in a direction away from the fixed core 32 _C by the spring 34.

One end of the rod 60 in the valve chamber 59 has a valve hole 5
4 openable semi-spherical valve body 61 is provided a valve body 61 is generally annular groove passageway 45 _C ie reservoir-side connection port 27 to close the valve hole 53 at the time that the coil 35 is demagnetized 41, that is, the connection from the brake device side connection port _25FL .

Each normally open solenoid valve V _CFL , V _CRR , V _CFR ,
The filters 48 and 52, the seal members 46 and 47, and the valve seat member 5 of the solenoid valve constituent unit 36 _O in the V _CRL
4. The guide cylinder 30 closed by the closing member 50 in the valve housing 38 _O provided with the bearing member 58 and the differential pressure valve 62
Are connected to each other, and the housing 31 _O
The fixed core 32 _O fixed to _O is housed in the guide tube 30 so as to face the fixed core 32 _O and the valve seat member 54
A movable core 33 on which a rod 60 having a valve body 61 that can be seated is fixedly mounted, and a spring 3 contracted between the fixed core 32 _O and the movable core 33 and housed in the guide cylinder 30.
4 are respectively unitized as a working unit assembly 64 _O. Also, normally closed solenoid valves V _CFL , V _CRR , V _CFR , V
Of the _CRL , filters 48 and 52, sealing members 46 and 4
7. A housing 31 _C formed by coupling a guide cylinder 30 to a valve housing 38 _C provided with a valve seat member 54 and a bearing member 58, and a fixed core 32 _C fitted and fixed to the guide cylinder 30 of the housing 31 _O. , the valve seat member 54 while being accommodated in the guide cylinder 30 to face the fixed core 32 _C
A movable core 33 to which a rod 60 having a valve body 61 which can be seated is fixedly mounted, and a spring 3 contracted between the fixed core 32 _C and the movable core 33 and housed in the guide cylinder 30.
4 are respectively unitized as a working unit assembly 64 _C.

Thus, each of the operating portion assemblies 64 _O , 64 _C.
Are fitted respectively in the large-diameter fitting hole 42, the medium-diameter fitting hole 43, and the small-diameter fitting hole 44 provided coaxially on the base 21 corresponding to the operating portion assemblies 64 _O and 64 _C , respectively. Will be.

On the other hand, each solenoid valve component unit 36 _O , 36
_The coil 35 and the yoke 37, which are the components of _C , are unitized as a wiring assembly 65 common to all the solenoid valve configuration units 36 _O , 36 _C. , Each operating part assembly 64 _O …, 64 _C
Are fitted so that they can be inserted and removed.

Referring to FIGS. 6 to 9 together, the wiring assembly 65 includes a plurality of coils 35... Wound around a bobbin 63, a plurality of yokes 37.
_CRR, V _ORR, V _CRL, and the common wiring board 66 ₁ to the coil 35 ... of V _ORL, the electromagnetic valves _{V CFL, V OFL, V CFR} ,
The wiring board 66 ₂ is commonly used for the V _OFR coils 35.
The wiring board 66 ₂ laminated on the substrate ₂ and the holding plate 22
A plurality of collars 6 made of a metal having rigidity for allowing a plurality of bolts 24 for fastening to 1 to pass therethrough.
7 are integrally embedded in a molded portion 68 made of a synthetic resin, and are formed in a thin rectangular block shape.

The wiring boards 66 ₁ and 66 ₂ have a plurality of circular insertion holes 71 for inserting the cylindrical portions 63a of the bobbins 63, respectively, and circular arcs on both sides of the insertion holes 71. Eight pairs of insertion holes 72 ₁ , 7 each formed in a pair
2 ₂ … and 2 colors 6 out of 8 colors 67…
A pair of insertion holes 73, 73 for inserting the holes 7, 67 are formed.

On the other hand, each yoke 3 formed in a cylindrical shape
7 are provided with a pair of notches 37a, 37a on one diameter line at the end opposite to the end of the operating part assemblies 64 _O , 64 _C, and the notches 37a, 37a are notches. 37a, the portion remaining after the formation of the 37a is the insertion hole 7
2 ₁ , 72 _2, ... Are formed.

On one wiring board 66 ₁ , the coil 35
On the side opposite to ... the solenoid valves V _CRR , V _ORR , V _CRL , V
4 pairs each connected to each coil 35 of the _ORL
A set of lead frames 74, 74 ... is arranged, on the opposite side of the coil 35 ... and the second wiring substrate 66 _2, the solenoid valves _{V CFL, V OFL, V CFR} , each coil of the V _OFR 35 ...
4 sets of lead frames 7 each connected to the
4, 74... Are provided. Thus, the lead frame 74
Are formed as a strip by punching a copper alloy plate or a brass plate.
a, 37a are provided corresponding to the wiring portions of the lead frames 74, 74... on the wiring boards 66 ₁ , 66 ₂ .
Therefore, the lead frames 74 are disposed on the two wiring boards 66 ₁ and 66 ₂ to be stacked, respectively, so that the lead frames 74 are embedded in the mold section 68 in a stacked state with an interval therebetween.

The wiring route of each lead frame 74 to both wiring boards 66 ₁ , 66 ₂ is the same as that of both wiring boards 66 ₁ , 66 ₂ .
66 ₂ is intended to be set to be symmetrical position when the set to face each other, by doing so, it is possible to reduce the type of lead frame 74 to be bent along a wiring route, reducing the number of parts Can be contributed to.

The wiring boards 66 ₁ , 66 ₂ are provided with a plurality of projections 75 for locking the lead frames 74, 74. Are provided, and their projections 75 ...
., Wiring work of the lead frames 74, 74... To the wiring boards 66 ₁ , 66 ₂ becomes easy. Moreover projections 75 ... is one of the wiring board 66 _2, used not only in order to define the space between the wiring substrate 66 _1, 66 _2, one of the wiring board 66 _{and second} projections 75 ... at least part of the By fitting into a positioning hole (not shown) provided in the other wiring board 66 ₁ , both wiring boards 6
6 _1, it can also be used to define a 66 _second relative position.

By the way, each of the lead frames 74, 74.
The end, the wiring board 66 _1, 66 is intended to be set to one side of the _2, two sets of the lead frame that are collectively arranged in a two-stage units of four columns 74, 74 ... wiring board 66 _1, 66
It protrudes sideways from ₂ .

In manufacturing the wiring section assembly 65, a molding assembly 76 as shown in FIG. 10 is prepared. The molding assembly 76 includes a plurality of lead frames 74, 74. ₁ wiring board 66 stacked with a 66 _2, a coil 35 ... which are wound respectively on bobbins 63, and a plurality of yokes 37 ... and. Thus, each coil 35...
Are wound around the cylindrical portions 63 of the bobbins 63, respectively.
a are inserted into the insertion holes 71, respectively, thereby assembling them into the wiring boards 66 ₁ , 66 _{2. The} yokes 37 are inserted into the insertion holes 72 at the ends thereof, whereby the wiring boards 66 ₁ , 66 are inserted. Assembled to ₂ .

The molding assembly 76 and the plurality of collars 67 are inserted into a mold and are integrally molded with a synthetic resin, so that the molding assembly 76 and each of the collars 67 are separated from each other. Are filled with the mold part 68, each bobbin 63 ... and each yoke 37
Are formed so that both ends of... Face the both surfaces of the mold portion 68 in a plane, so that a wiring block assembly 65 in a rectangular block shape is formed. Moreover, at the time of the molding, a pair of couplers 68a, 68a formed in a rectangular cylindrical shape so as to surround the connection terminals 74a, which are the ends of two sets of lead frames 74 arranged in two rows of four rows. Are formed integrally with the mold part 68.

The wiring section assembly 6 thus configured
5, each operating part assembly 64 is attached to each bobbin 63.
_O ..., 64 but _C ... guide tube 30 ... I am in it to be fitted in removable from, the operating portion assembly 64 _O ..., 6
In order to facilitate alignment between 4 _C … and each bobbin 63…
On the inner surface of each bobbin 63, a plurality of, for example, four elastic projections 63b are provided at intervals in the circumferential direction, each of which elastically comes into contact with the outer surface of the guide cylinder 30.

Each of the collars 6 in the wiring section assembly 65
The axial length of each bobbin 63 and each yoke 3
.., That is, slightly larger than the thickness of the mold portion 68.

Next, the operation of the first embodiment will be described. Each normally open solenoid valve V _OFL , V _ORR , V _OFR , V _ORL
In, the excitation of the coil 35, the valve housing 38 _O from the stationary core 32 _O, the yoke 37, the presser plate 22, through the magnetic portion 40 and the movable core 33 of the guide cylinder 30 a magnetic flux is generated leading to the fixed core 32 _O, the movable core 33 is a fixed core 32
_The valve body 61 closes the valve hole 53 by being sucked to the _O side. Each normally closed solenoid valve V _CFL , V _CRR , V
_{In the CFR} and V _CRL , the excitation of the coil 35 causes the holding plate 22, the yoke 37, and the valve housing 3 to move from the fixed core 32 _C.
8 through _C and the movable core 33 flux occurs leading to the fixed core 32 _C, the valve element 61 will open the valve hole 53 by the movable core 33 is attracted to the fixed core 32 _C side.

In such a solenoid valve device, each of the solenoid valves V _OFL , V _ORR , V _OFR , V _ORL , V _CFL , V _CRR , V
Solenoid valve component units 36 _O , 36 in _CFR , V _CRL
C is composed of operating part assemblies 64 _O and 64 _C and a wiring part assembly 65 into which the operating part assemblies 64 _O and 64 _C are fitted so that they can be inserted and removed. With the assemblies 64 _O …, 64 _C … assembled, the wiring section assembly 6
By assembling the solenoid valve 5, a solenoid valve device is formed.

That is, each operating part assembly 64 _O ..., 64 _C
, And the wiring section assembly 65 can be checked in a state where they are separated from each other. The operating section assemblies 64 _O , 64 _C, and the wiring section assembly 65 after the performance check are completed. Assemble the solenoid valve device,
Quality control becomes easier and assembly workability is improved. Moreover, since the sealability of each of the operating portion assemblies 64 _O , 64 _C can be checked while the 64 _O , 64 _C , etc. are mounted on the base 21, the wiring portion assembly 6 can be checked.
5 can maintain a good sealing property even after assembly, and each of the operating part assemblies 64 _O , 64 _C.
By further assembling the wiring section assembly 65 in a state where the bobbin 6 is mounted on the bobbin 6 in the wiring section assembly 65, it is easy to position the wiring section assembly 65.
3 are provided with the elastic projections 63b on the inner surface, so that each operating portion assembly 64 _{O with} respect to the wiring portion assembly 65 is provided.
, 64 _C can be easily aligned.

The wiring section assembly 65 includes the coils 35.
Since the lead frames 74 of the wiring boards 66 ₁ and 66 ₂ are connected to each other, they are integrated into a single unit, so that there is no need to perform connection work when assembling the solenoid valve device, and therefore grease or the like adheres to the connection parts. Therefore, it is possible to secure the conductivity of the connection portion and to improve the assemblability.

By using the lead frames 74 composed of conductive strips as the conductors, not only can the current capacity of the conductors be set relatively large, but also the laminated state in which the lead frames 74 are spaced apart from each other. Can be embedded in the mold portion 68, so that the cross-sectional area of each lead frame 74 can be set large in a limited space to further increase the current capacity, thereby increasing the magnetic attraction force. It can greatly contribute. Furthermore, the lead frame 74 has a greater shape-retaining force than the lead wire, and therefore, no displacement occurs due to the pressure of the molten resin when embedded in the molding 68.

The wiring section assembly 65 includes a holding plate 22 which is fastened to the base 21 with a plurality of bolts 24.
However, the tightening force of the bolts 24 can be received by the rigid collars 67, and no large load acts on the yokes 37 and the guide cylinders 30. Therefore, the magnetic properties of the yokes 37 and the guide cylinders 30 are not adversely affected.

Further, the molding section 68 of the wiring section assembly 65
Are provided integrally with each other, and the connection terminals 74a at the ends of the respective lead frames 74 are arranged so as to face the inside of the connection couplers 68a.
There is no need to fix the connection terminals with solder or the like, which not only contributes to a reduction in the number of assembling steps and the number of parts, but also prevents the connection cords from being exposed from the wiring section assembly 65. Therefore, the fixing means is not required, which can contribute to the reduction of the number of parts.

[0047] Figure 11 shows a second embodiment of the present invention, mutually spaced apart so as to dispose the lead frame 74, 74 in a stacked state on one side of a single wiring board 66 ₃ and may, further as in the third embodiment shown in FIG. 12, the lead frame 74 and 74 on both surfaces of the wiring board 66 ₄
May be provided.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various designs can be made without departing from the present invention described in the claims for utility model registration. Changes can be made.

For example, the plurality of collars 67 may not be integrated with the wiring portion assembly 65, and the collars 65 may be fitted into a plurality of holes provided in the wiring portion assembly.

[0050]

[Effect of the Invention] As described above, according to the present invention, the common base
Each coil of multiple solenoid valve components mounted on the body
Of conductive strips formed separately and independently for
Laminated state with several lead frames spaced apart from each other
Are placed on the wiring board as conductors at
And over arm and the wiring substrate, a plurality of coils which are in a state of being connected individually to the plurality of lead frames on the wiring board, are embedded in the molded part made of synthetic resin, wire portion
As an assembly is configured, it can be used for multiple solenoid valve constituent units.
And wiring bases for the solenoid valve component units
Plate and the conductors of the wiring board, which are individually connected to each coil.
Connect multiple lead frames to the solenoid valve device
Before starting, make sure to make a block unit
Therefore , connection work between the coil and the conductor ( lead frame ) is not required at the time of assembling, so that assembling workability can be improved, and grease or the like adheres to the connection portion between each coil and the conductor. Connection, the continuity of the connection portion can be ensured , and the block
Separate the knitted wiring assembly from the valve actuator
In a state where it can be checked independently,
Quality control, inspection and maintenance can be performed efficiently and easily.
You. In addition, from the conductive strip as a conductor to energize each coil
And the effects of using these lead frames
Are arranged on a wiring board in a stacked state,
Space for each lead frame (hence the cross section
Product) as much as possible.
Te, Ru can contribute to an increase in the magnetic attraction force sufficiently large current capacity of the conductors. Furthermore, due to the large shape retention force of the lead frame, misalignment of the lead frame occurs due to the pressure of the molten resin during embedding in the mold part.
It can be avoided effectively .

[Brief description of the drawings]

FIG. 1 is a front view of a solenoid valve device according to a first embodiment.

FIG. 2 is a view taken along line 2-2 of FIG. 1;

FIG. 3 is a view taken in the direction of arrow 3 in FIG. 1;

FIG. 4 is a longitudinal sectional view of a normally-open solenoid valve.

FIG. 5 is a vertical sectional view of a normally closed solenoid valve.

FIG. 6 is a side view of the wiring unit assembly.

FIG. 7 is a vertical sectional view of the wiring section assembly, taken along line 7-7 in FIG. 8;
It is a line sectional view.

FIG. 8 is a sectional view taken along line 8-8 in FIG. 7;

FIG. 9 is a sectional view taken along line 9-9 of FIG. 7;

FIG. 10 is a partial perspective view of the molding assembly.

FIG. 11 is a sectional view of a wiring board according to a second embodiment.

FIG. 12 is a sectional view of a wiring board according to a third embodiment.

[Explanation of symbols]

21 ... base 30 ... guide cylinder 31 _C , 31 _O ... housing 32 _C , 32 _O ... fixed core 33 ... movable core 35 ... coil 36 _C , 36 _O ... electromagnetic Valve constituent unit 39: non-magnetic portion 66 ₁ , 66 ₂ , 66 ₃ , 66 _4: wiring board 68: molded portion 74: lead frame

Claims (1)

(57) [Scope of request for utility model registration] 1. A housing (31 _C ) having a guide cylinder (30) extending cylindrically with a non-magnetic portion (39) interposed therebetween.
31 _0), a fixed core fixed to one end of the guide tube _{(30) (32 C, 32} O), the fixed core (32 _C, 32
_O) to face the guide cylinder (the movable core housed in 30) (33), fixed core (32 _C of the movable core (33),
32 _O) a plurality of magnet valve units (36 and a coil (35) surrounding the guide cylinder (30) in order to exert a magnetic attraction force for attracting the side _C, 36 _O) is a common substrate (2
1), and each coil (35) is connected to a wiring board (66).
₁ , 66 ₂ ; 66 ₃ ; 66 ₄ ) in the solenoid valve device connected to the conductors, each of which is independently formed corresponding to each coil (35).
A plurality of lead frames (74) made of a conductive strip
The wiring board (66) is used as a conductor in a laminated state with a space between them.
₁ , 66 ₂ ; 66 ₃ ; 66 ₄ ), the lead frame (74) and the wiring board (66 ₁ , 66 ₁ , 66 ₃₎ .
66 _2; 66 _3; 66 ₄ and), said wiring substrate (66 _1, 6
6 _2; 66 _3; 66 ₄₎ and a plurality of coils (35) located in the state of being connected individually to the plurality of lead frames (74) on it, embedded in a molded portion made of synthetic resin (68) And a wiring section assembly (65) .