JPH08152076A - Solenoid valve device - Google Patents

Abstract

(57) [Abstract] [Purpose] A housing having a guide cylinder, a fixed core fixed to one end side in the guide cylinder, a movable core facing the fixed core and housed in the guide cylinder, and a guide cylinder. In a solenoid valve device in which a plurality of solenoid valve constituent units having surrounding coils are attached to a common base, and each coil is connected to a conductor, the assemblability is improved and the connection between the conductor and the coil is conducted. In addition to preventing the loss of productivity, the number of manufacturing steps is reduced. [Structure] A plurality of coils 35 and a plurality of conductors 7 held by a temporary holding member 75 made of a non-conductive material and connected to corresponding coils 35 in a state where their mutual positions are predetermined.
4 and 4 are embedded in a mold portion 68 made of synthetic resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing having a cylindrical guide cylinder, a fixed core fixed to one end of the guide cylinder, and a movable core housed in the guide cylinder so as to face the fixed core. The present invention relates to a solenoid valve device in which a plurality of solenoid valve constituent units each having a coil surrounding a guide cylinder are attached to a common base, and each coil is connected to a conductor.

[0002]

2. Description of the Related Art Conventionally, such a device is disclosed in Japanese Patent Publication No.
It is known from JP-A-38466 and JP-A-6-213350.

[0003]

[Problems to be Solved by the Invention] Japanese Patent Publication No. 3-384
In the one disclosed in Japanese Patent Publication No. 66, the wiring board on which the conductor is arranged is arranged separately from each solenoid valve constituent unit, and after mounting each solenoid valve constituent unit to the base body,
Since each coil is connected to the wiring board, it cannot be said that the workability in assembling is excellent. Further, grease or the like used when assembling each solenoid valve constituent unit to the base body may adhere to the connection portion between each coil and the wiring board, which may impair the conductivity of the connection portion.

Therefore, in the solenoid valve device disclosed in Japanese Patent Laid-Open No. 6-213350, a wiring board and a plurality of coils connected to conductors on the wiring board are molded of synthetic resin. The wiring part assembly is embedded in the portion to improve the workability of assembling and prevent the continuity of the connection part from being impaired. However, the conductors placed on the wiring board
Positioning is performed on the wiring board by locking the protrusions protruding from the wiring board, and the work of placing each conductor on the wiring board during molding with synthetic resin is complicated and the number of manufacturing steps must be increased. It has been eliminated, and it is desirable to reduce the number of manufacturing steps.

The present invention has been made in view of the above circumstances, and is manufactured after improving the assemblability and preventing the electrical continuity of the connecting portion between the wiring board, the conductor and the coil from being impaired. It is an object of the present invention to provide a solenoid valve device that reduces man-hours.

[0006]

In order to achieve the above object, the invention according to claim 1 has a housing having a cylindrical guide cylinder, a fixed core fixed to one end side in the guide cylinder, and a fixed core. A solenoid valve device in which a plurality of solenoid valve constituent units having a movable core that faces the core and is housed in the guide tube and a coil that surrounds the guide tube are mounted on a common base, and each coil is connected to a conductor. In the mold part, a plurality of coils and a plurality of conductors, which are held by a temporary holding member made of a non-conductive material and are connected to corresponding coils in a state where their mutual positions are predetermined, are made of synthetic resin. It is characterized by being embedded in.

According to a second aspect of the present invention, a housing having a cylindrical guide cylinder, a fixed core fixed to one end side in the guide cylinder, and a movable core housed in the guide cylinder facing the fixed core. In a solenoid valve device in which a plurality of solenoid valve constituent units having a core and a coil surrounding the guide cylinder are attached to a common base, and each coil is connected to a conductor,
Wiring board common to each solenoid valve constituent unit, a plurality of coils, and a temporary holding member made of a non-conductive material are arranged on the wiring board in such a manner that their mutual positions are predetermined and held. And a plurality of conductors connected to the coil are embedded in a mold portion made of synthetic resin.

[0008]

According to the structure of the first aspect, it is not necessary to connect the coils and the conductors when assembling the solenoid valve device, and the connecting portions of the coils and the conductors are in the mold part, so that the grease can be obtained. And the like can be prevented from adhering to the connection portion, and the positioning of the conductors relative to each other is performed by the temporary holding member, so that workability at the time of molding can be improved.

Further, according to the above-mentioned structure of the present invention, it is unnecessary to connect each coil and the conductor at the time of assembling the solenoid valve device, and the connecting portion of each coil and the conductor exists in the mold portion. Positioning of the conductors on the wiring board can be prevented by preventing grease etc. from adhering to the connection part, and furthermore, when the conductors are arranged on the wiring board, the conductors are positioned by the temporary holding member. Easy to place.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 9 show a first embodiment of the present invention, FIG. 1 is a front view of an electromagnetic valve device, and FIG. 2 is FIG.
2-2 line arrow view, FIG. 3 is an arrow view of FIG. 1, FIG. 4 is a vertical cross-sectional view of the normally open solenoid valve, and FIG. 5 is a vertical cross-sectional view of the normally closed solenoid valve.
6 is a side view of the wiring part assembly, FIG. 7 is a sectional view taken along line 7-7 of FIG. 6, FIG. 8 is a sectional view taken along line 8-8 of FIG. 7, and FIG. 9 shows a state in which the conductor is held by a temporary holding member. FIG.

First, in FIGS. 1, 2 and 3, this solenoid valve device is used for an anti-lock brake device of a four-wheel vehicle, and includes a left front wheel brake device, a right rear wheel brake device, and a right front wheel brake device. And _normally open solenoid valves V _OFL , V that line up corresponding to the left rear wheel braking device
_ORR , V _OFR , V _ORL and normally closed solenoid valves V _CFL , V _CRR , V _CFR , and V _CRL which are arranged corresponding to the normally open solenoid valves V _OFL , V _ORR , V _OFR , and V _ORL , respectively. With.

Block-shaped nonmagnetic metal
Four bases 21 are individually connected to each braking device.
Brake device side connection port 25_FL, 25_RR, 25_FR,
25 _RLAnd a pair of tandem master cylinders not shown
Connection of a pair of master cylinders connected to the output ports of
Port 26₁, 26₂Connected to a reservoir not shown
A reservoir side connection port 27 is provided. Thus
Normally open solenoid valve V_OFLIs the brake device side connection port 25_FL
And master cylinder side connection port 26₁Communication / interruption between
It can be switched on and off, and is a normally closed solenoid valve V_CFLIs the brake equipment
Storage side connection port 25_FLAnd reservoir side connection port 27
It is possible to switch between open and closed, and a normally open solenoid valve V_ORR
Is the brake device side connection port 25_RRAnd Master Sillin
Da side connection port 26₁It is possible to switch between communication and disconnection between
Normally closed solenoid valve V_CRRIs the connection port 2 on the brake device side
5_RRAnd connection / disconnection between the reservoir side connection port 27
Switchable, normally open solenoid valve V_OFRIs the brake device side
Connection port 25_FRAnd master cylinder side connection port 2
6₂The normally closed solenoid valve V can be switched between open and closed.
_CFRIs the brake device side connection port 25_FRAnd reservoir
It is possible to switch between communication and disconnection between the side connection ports 27.
Open type solenoid valve V_ORLIs the brake device side connection port 25_RLOh
And master cylinder side connection port 26₂Communication / interruption between
Can be switched to a normally closed solenoid valve V_CRLIs the braking device
Side connection port 25_RLAnd between the reservoir side connection port 27
It is possible to switch between communication and disconnection.

Each of the normally open solenoid valves V _OFL , V _ORR , V _OFR ,
The 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 normally open solenoid valves V _OFL , and normally closed solenoid valves V _CFL , V _CRR , and V _CF.
The detailed configuration of _R and V _CRL will be described using a normally closed solenoid valve V _CFL .

[0015] In FIG. 4, the normally open electromagnetic valves V _OFL, the housing 31 _O having a cylindrical guide tube 30, fixed core 32 _O fixed to one end of the guide tube 30, opposed to the stationary core 32 _O The movable core 33 is housed in the guide cylinder 30, the fixed core 32 _O and the spring 34 compressed between the movable core 33, and the movable core 33 against the spring force of the spring 34.
The coil 35 surrounding the guide cylinder 30 so as to exert a magnetic attraction force for attracting the magnet to the fixed core 32 _O side, and the coil 3
5 is provided with a solenoid valve constituting unit 36 _o having a cylindrical magnetic path forming member 37 surrounding the solenoid valve 5, and each solenoid valve V _OFL , V _ORR ,
The magnetic metal holding plate 22 and the housing 31 _O, which are common to V _OFR , V _ORL , V _CFL , V _CRR , V _CFR , and V _CRL , are magnetically coupled via the magnetic path forming member 37, and the holding plate 2
2 is fastened to the base 21 by a plurality of, for example, eight bolts 24.

The housing 31 _O includes a stepped cylindrical valve housing 38 _O made of magnetic metal and the valve housing 3 _O.
The guide cylinder 30 is coaxially connected to 8 _O. The valve housing 38 _O includes a large diameter portion 38 _OA , a medium diameter portion 38 _OB, and a small diameter portion 38 _OC coaxially connected to each other, and an annular groove 41 is provided on the outer surface of the medium diameter portion 38 _OB . The guide tube 30 is in the non-magnetic portion 39 in which the is fitted to the large-diameter portion 38 fitting recess 55 provided at the lower central portion of the _OA is formed into a cylindrical shape by a non-magnetic material, a cylindrical a magnetic material Portion 4 formed in a ring shape and coaxially connected to the non-magnetic portion 39
It consists of 0 and.

On the other hand, at the bottom of the base 21, the housing
Gu 31_OValve housing 38 at _OLarge diameter part 38_OATo
The large-diameter fitting hole 42 to be fitted and the valve housing 38_O
Medium diameter part 38_OBMedium-diameter fitting hole 43 having an inner surface surrounding the
And valve housing 38_OSmall diameter part 38_OCSmall to fit
Diameter fitting hole 44 and passage 45_OAnd the steps from the bottom
Provided without a passage 45_OIs the connection port on the master cylinder side.
26₁Be communicated to. Also, the large diameter portion 38_OAIs large
The annular seal member 46 that contacts the inner surface of the radial fitting hole 42 is
Installed, small diameter part 38_OCContact the inner surface of the small diameter fitting hole 44.
An annular seal member 47 to be touched is attached. Furthermore,
Housing 38_OMedium diameter part 38_OBThe flange that covers the annular groove 41.
A filter 48 is installed, and this filter 48 and medium diameter
An annular chamber 49 formed between the fitting hole 43 and the fitting hole 43 has a brake device.
Storage side connection port 25_FLBe communicated to.

In the guide cylinder 30, the valve housing 38_O
A closing member 50 is provided at the end portion on the side separated from the sealing member 5.
It is fitted and fixed via 1. Also the valve housing 38_O
The valve housing 38_OMounted on top of
Passage 45 through filter 52_OHas a valve hole 53 leading to
The valve seat member 54 is fitted and fixed. Moreover, the valve house
38_OThe non-magnetic part 39 of the guide cylinder 30 is provided in the lower part of the inside.
Cylindrical fixed core 32 with a part fitted inside_OIs mated
This fixed core 32_OThe outer end in the annular groove 31
Valve housing 38 open_OMedium diameter part 38_OBRadial to
A plurality of caulking recesses 57 provided in the
Jing 38_OIt is fixed by crimping. Further valve housing
38_OInside the valve seat member 54 and the fixed core 32_OFixed between
Core 32 _OA bearing member 58 is fixed near the
A valve communicating with the annular groove 41 between the material 58 and the valve seat member 54.
A chamber 59 is formed.

A movable core 33 is housed in the housing 31 _O between the closing member 50 and the fixed core 32 _O. The movable core 33 is coaxially fixed with a rod 60 which coaxially and axially movably penetrates the fixed core 32 _O and has one end slidably supported by a bearing member 58.
The other end of is fitted slidably into the closing member 50. Moreover, the spring 34 surrounding the rod 60 is contracted between the fixed core 32 _O and the movable core 33, and the movable core 33 is biased by the spring 34 in a direction away from the fixed core 32 _O.

Inside the valve chamber 59, one end of the rod 60 has a valve hole 5
4 is provided with a hemispherical valve body 61 that can be opened and closed. The valve body 61 opens the valve hole 53 in the normal state when the coil 35 is in the demagnetized state to open the passage 45 _O, that is, the master cylinder side connection port 26 ₁ . It communicates with the annular groove 41, that is, the brake device side connection port 25 _FL .

[0021] 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 surface of the valve housing 38 _{O contacts} the end surface of the large diameter portion 38 _OA of the valve housing 38 _O. At the other end of the bobbin 63, a small-diameter cylindrical portion 63 extending until it is flush with the outer end of the guide cylinder 30.
a is integrally provided.

Normally closed solenoid valves V _CFL , V _CRR , V _CFR and V
_{The CRL} has many of its constituent elements identical to the _normally open solenoid valves V _OFL , V _ORR , V _OFR , and V _ORL, and the _normally open solenoid valves V _OFL , V _ORR , V _OFR , The same components as those of V _ORL are designated 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_CFRIs a moth
Housing 31 having an id tube 30 _C, Of the guide tube 30
Fixed core 32 fixed to one end_C, Fixed core 32_CTo
The movable core 33, which is opposed to and is housed in the guide cylinder 30, is fixed.
Constant core 32_CAnd the spring 3 contracted between the movable core 33
4. The movable core 33 is fixed against the spring force of the spring 34.
32_CGuide cylinder 30 to exert suction force to the side
Coil 35 surrounding and circle surrounding coil 35
Electromagnetic valve constituting unit 3 having cylindrical magnetic path forming member 37
6_CAnd the housing 31 via the magnetic path forming member 37.
_CAnd the pressing plate 22 is magnetically coupled.

The housing 31 _C includes a stepped cylindrical valve housing 38 _C made of magnetic metal, and the valve housing 3
8 _C and a guide cylinder 30 which is coaxially coupled. The valve housing 38 _C comprises a large diameter portion 38 _CA , a medium diameter portion 38 _CB, and a small diameter portion 38 _{CC that} are coaxially connected to each other, and an annular groove 41 is provided on the outer surface of the medium diameter portion 38 _CB . The guide cylinder 30 is formed of a non-magnetic material into a cylindrical shape, and the non-magnetic portion 39, which is coaxially connected to the large diameter portion 38 _CA with a step, is formed of a magnetic material into a cylindrical shape. It is composed of a magnetic portion 40 coaxially connected to the magnetic portion 39.

On the other hand, at the bottom of the substrate 21, the housing
Gu 31_CValve housing 38 at _CLarge diameter part 38_CATo
The large-diameter fitting hole 42 to be fitted and the valve housing 38_C
Medium diameter part 38_CBMedium-diameter fitting hole 43 having an inner surface surrounding the
And valve housing 38_CSmall diameter part 38_CCSmall to fit
Diameter fitting hole 44 and passage 45_CAnd the steps from the bottom
Provided without a passage 45_CIs the reservoir side connection port 2
7 is communicated. Also, the large diameter portion 38_CAHas a large fitting hole
An annular seal member 46 that contacts the inner surface of 42 is attached.
Small diameter part 38_CCContacts the inner surface of the small diameter fitting hole 44.
An annular seal member 47 is attached. More valve house
Gu 38_CMedium diameter part 38_CBA filter that covers the annular groove 41
No. 48 is attached, and this filter 48 and a medium diameter fitting hole
An annular chamber 49 formed between the brake device 43 and the brake device 43
Continued port 25_FLBe communicated to.

In the guide cylinder 30, the valve housing 38 _O
A fixed core 32 _C formed in a bottomed cylindrical shape is fitted and fixed to the end portion on the side separated from. Also the 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. Further, in the valve housing 38 _C , a bearing member 58 is fixed which forms a valve chamber 59 communicating with the annular groove 41 with the valve seat member 54.

The movable core 33 is housed in the housing 31 _C between the fixed core 32 _C and the bearing member 58. A rod 60 having one end slidably supported by a bearing member 58 and the other end inserted into the fixed core 32 _C is coaxially fixed to the movable core 33. Moreover, the fixed core 32
A spring 34 surrounding the rod 60 is contracted between _C and the movable core 33, and the movable core 33 is biased by the spring 34 in a direction away from the fixed core 32 _C.

Inside the valve chamber 59, one end of the rod 60 has a valve hole 5
4 is provided with a hemispherical valve body 61 that can be opened and closed. The valve body 61 closes the valve hole 53 during normal operation when the coil 35 is in the demagnetized state and opens the passage 45 _C, that is, the reservoir side connection port 27 into an annular groove. 41, that is, the brake device side connection port 25 _{FL is} shut off.

Each normally open solenoid valve V_CFL, V_CRR, V_CFR,
V_CRLSolenoid valve component unit 36 in_OOf which
Filter 48, 52, seal members 46, 47, valve seat member 5
4, a valve housing provided with a bearing member 58 and a differential pressure valve 62
Jing 38_OGuide tube 30 closed by the closing member 50
Housing 31 formed by combining_O, The housing 31
_OFixed core 32 fixed to_O, Fixed core 32_OOpposed to
And then housed in the guide cylinder 30 and the valve seat member 54.
A rod 60 having a valve body 61 that can be seated on is fixedly installed.
Movable core 33 and fixed core 32_OAnd movable core
A spring 3 which is contracted between 33 and accommodated in the guide cylinder 30.
4 is an operating unit assembly 64_OEach unitized as
Be done. Normally closed solenoid valve V_CFL, V_CRR, V_CFR, V
_CRLOf which, the filters 48 and 52 and the sealing members 46 and 4
7, valve seat member 54 and bearing member 58
Housing 38_CHousing with a guide tube 30 attached to the
Ring 31_C, The housing 31_OFit in the guide tube 30
Fixed core 32_C, Fixed core 32_COpposed to
And then housed in the guide cylinder 30 and the valve seat member 54.
A rod 60 having a valve body 61 that can be seated on is fixedly installed.
Movable core 33 and fixed core 32_CAnd movable core
A spring 3 which is contracted between 33 and accommodated in the guide cylinder 30.
4 is an operating unit assembly 64_CEach unitized as
Be done.

Thus, the respective operating portion assemblies 64 _O ..., 64 _C ...
Is fitted into a large-diameter fitting hole 42, a medium-diameter fitting hole 43, and a small-diameter fitting hole 44, which are coaxially provided in the base body 21 in correspondence with the operating portion assemblies 64 _O and 64 _C , respectively. Will be.

On the other hand, each solenoid valve constituent unit 36 _O , 36
_A coil 35 and a magnetic path forming member 37, which are components of _C ,
37 is all solenoid valve constituent units 36 _O ..., 36 _C ...
The wiring section assembly 65 is a unit that is common to all the working section assemblies 64.
_O ..., 64 _C ... Are fitted so that they can be inserted and removed.

Referring also to FIGS. 6, 7 and 8,
The wiring portion assembly 65 includes a plurality of coils 35 wound around the bobbin 63, a plurality of magnetic path forming members 37.
A plurality of collars 67 made of a metal having rigidity for inserting a plurality of bolts 24 for fastening the pressing plate 22 to the base body 21, and leads as a plurality of conductors connected to each coil 35. The frames 74 ... Are integrally embedded in a mold portion 68 made of synthetic resin, and are formed in a thin rectangular block shape.

Each magnetic path forming member 3 formed in a cylindrical shape
7 ... Actuator assembly 64_O…, 64 _CThe opposite end
A pair of notches 37a, 37a on one diameter line in the
A pair of coils provided and connected to each coil 35 ...
The eight lead frames 74, 74 ...
So as to be located in the notches 37a, 37a of the members 37 ...
Are arranged.

Referring also to FIG. 9, the lead frames 74, 74 ...
In order to determine the mutual positions, they are held by a plurality of temporary holding members 75, 75, ... Made of a non-conductive material such as synthetic resin.
Moreover, flat plate-like connecting plates 76 that abut against the bobbins 63 are fixedly provided at the end portions of the lead frames 74, 74, respectively. The connecting plates 76, 76 ,. Connection holes 77 through which the connection terminals 35a, 35a, ...

By the way, all the lead frames 74, 7
One end of each of the lead frames 74 is gathered at the central portion on one side of the mold portion 68, and the projecting ends of the lead frames 74 are twisted by 90 degrees to function as the connection terminals 74a.

In producing the wiring assembly 65, the lead frames 74 held by the temporary holding members 75, 75, and the coils 35 wound around the bobbins 63, respectively. , A plurality of magnetic path forming members 37
... and are prepared. Thus, the coils 35 wound around the bobbins 63, the magnetic path forming members 37 surrounding the coils 35, and the temporary holding members 75, 75, and the connection holes 77, 77. Connection terminal 35 inserted through
, and lead frames 74 in the state where the connecting plates 76, 76 ... Are soldered to a, 35a .. are inserted into a mold and integrally molded with synthetic resin, so that each bobbin 63 ... And each magnetic path. The wiring part assembly 65 in the form of a rectangular block is formed such that both ends of the forming members 37 are flush with both surfaces of the mold part 68. Moreover, at the time of the molding, the rectangular tubular coupler 6 is formed so as to surround the connection terminals 74a of all the lead frames 74.
8a is formed integrally with the mold portion 68.

The wiring section assembly 6 thus constructed
5. Each bobbin 63 in FIG.
_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 the alignment between 4 _C ... And each bobbin 63 ...
On the inner surface of each bobbin 63, a plurality of, for example, four elastic protrusions 63b, which elastically contact the outer surface of the guide cylinder 30, are provided at intervals in the circumferential direction.

Further, each collar 6 in the wiring assembly 65
The axial length of 7 is set to be slightly larger than the length of each bobbin 63 and each magnetic path forming member 37, that is, the thickness of the mold portion 68.

Next, the operation of the first embodiment will be described.
Then, each normally open solenoid valve V_OFL, V_{OR R}, V_OFR, V_ORL
Then, by exciting the coil 35, the fixed core 32_OKaraben
Housing 38_O, The magnetic path forming member 37, the pressing plate 22,
After passing through the magnetic portion 40 and the movable core 33 of the guide cylinder 30,
Constant core 32_OThe magnetic flux that reaches the
A 32_OWhen the valve body 61 is sucked to the side,
Will be closed. In addition, each normally closed solenoid valve V_CFL, V
_CRR, V_CFR, V_CRLThen, by exciting the coil 35,
Fixed core 32_CFrom the pressing plate 22, the magnetic path forming member 37,
Valve housing 38 _CAnd the fixed core through the movable core 33
32_CMagnetic flux is generated and the movable core 33 moves to the fixed core 32.
_CThe valve body 61 opens the valve hole 53 by being sucked to the side
Will be.

In such a solenoid valve device, each solenoid valve V _OFL , V _ORR , V _OFR , V _ORL , V _CFL , V _CRR , V
Solenoid valve constituent units 36 _O and 36 in _CFR and V _{CRL
Since C} is composed of the operating unit assemblies 64 _O and 64 _C and the wiring unit assembly 65 into which the operating unit assemblies 64 _O and 64 _C are removably fitted, each operating unit is attached to the base 21. Wiring assembly 6 with the assembly 64 _O , 64 _C assembled.
By assembling 5, the solenoid valve device is constructed.

That is, each operating unit assembly 64_O…, 64_C
... and the wiring section assembly 65 are separated from each other.
You can check the performance of the
Rear actuator assembly 64_O…, 64_C… And wiring part assembly
It is possible to assemble the solenoid valve device using the body 65,
Quality control is easy and assembly workability is improved.
It Moreover, each operating unit assembly 64_O…, 64_C… Seal
Sex check them 64 _O…, 64_C... to the base 21
Since the wiring part assembly 6 can be performed with the wiring part attached,
It is possible to secure good sealability even after assembling 5.
And each operating part assembly 64_O…, 64_C... is the base 21
The wiring part assembly 65 is further assembled in the state where it is assembled to
Position of the wiring assembly 65 by positioning
Each bobbin 6 in the wiring assembly 65 is easy
The elastic protrusions 63b on the inner surface of 3 are provided.
Therefore, each operating part assembly 64 with respect to the wiring part assembly 65_O
…, 64_CAlignment of ... Can be facilitated.

The wiring assembly 65 includes coils 35, ...
The lead frame 74 and the like are connected to form an integrated unit, and there is no need to perform connection work when assembling the solenoid valve device, and therefore grease or the like does not adhere to the connection portion, and the connection portion is not attached. It is possible to secure the electrical continuity and improve the assembling property.

Moreover, each lead frame 74, 74 ...
Since the temporary holding members 75, 75 ... Are molded with the mutual positioning being performed, the wiring section assembly 6 is formed.
5, the complicated work of positioning and arranging the lead frames 74, 74 ... While positioning each lead frame is eliminated, and the connection work between the coils 35, 35 ... And the lead frames 74, 74. It can be reduced.

The wiring portion assembly 65 includes a pressing plate 22 which is fastened to the base 21 with a plurality of bolts 24, and a base 21.
Although it is sandwiched between the bolts 24 and 24, the tightening force of the bolts 24 can be received by the collar 67 having rigidity, and a large load acts on each magnetic path forming member 37 and the guide tube 30. Since there is no such thing, each magnetic path forming member 37
And the magnetic characteristics of the guide cylinder 30 are not adversely affected.

Further, the mold portion 68 of the wiring portion assembly 65.
Is integrally provided with a coupler 68a, and the connection terminals 74a formed by twist forming of the lead frames 74 are arranged so as to face the coupler 68a. Therefore, the connection cord is not exposed from the wiring section assembly 65. Therefore, it is possible to contribute to reduction of the number of parts by eliminating the need for fixing the connecting cord.

FIGS. 10 to 12 show the second embodiment of the present invention, and the portions corresponding to the first embodiment are designated by the same reference numerals.

The wiring portion assembly 65 'includes a plurality of coils 35 wound around the bobbin 63, a plurality of magnetic path forming members 37, and solenoid valves V _CFL , V _CRR , V _CFR and V.
_CRL , V _CFL , V _CRR , V _CFR , and V _CRL coil 35 ...
Common to the wiring board 66 and a plurality of collars 67 made of a metal having rigidity for inserting the plurality of bolts 24 for fastening the pressing plate 22 to the base 21.
And a lead frame 74, which is a plurality of conductors connected to the coils 35, are integrally embedded in a mold portion 68 made of synthetic resin, and formed in a thin rectangular block shape. It

The wiring board 66 has a plurality of circular insertion holes 71 for inserting the cylindrical portions 63a of the bobbins 63, respectively, and a pair of circular arc-shaped holes formed on both sides of the insertion holes 71. .. and a pair of insertion holes 73, 73 for inserting the two collars 67, 67 out of the eight collars 67.

On the other hand, the notches 37a, 37a provided in each of the magnetic path forming members 37 are formed so that the remaining portions due to the formation of the notches 37a, 37a are inserted into the insertion holes 72, respectively. Formed. Moreover, coil 3
On the side opposite to 5, ..., The wiring board 66 has eight pairs of lead frames 7 connected to the respective coils 35.
, 74 are provided, and the notches 37a, 37a of the magnetic path forming member 37 ...
.. are provided corresponding to the wiring portions of the wiring board 66.

The lead frames 74, 74, ... Are held by a plurality of temporary holding members 75, 75 ... To determine the positions of the lead frames 74, 74. The lead frames 74, 74, ..., Which are held by the temporary holding members 75, 75 ... And whose positions are determined relative to each other, are arranged on the wiring board 66.

In manufacturing the wiring assembly 65 ', the wiring board 66, a plurality of electric elements (not shown) such as diodes arranged on the wiring board 66, and the temporary holding members 75, 75. Wiring board 66 in a state of being held by
A plurality of lead frames 74 arranged above, coils 35 wound around bobbin 63, and a plurality of magnetic path forming members 37 are prepared. Thus each coil 3
5, ... Are attached to the wiring board 66 by inserting the cylindrical portions 63a of the bobbins 63 on which the coils 35 are respectively wound into the insertion holes 71.
The magnetic path forming members 37 ... Are assembled to the wiring board 66 by inserting their ends into the insertion holes 72. Further, the lead frames 74, 74 ...
While being held by 5 and placed on the wiring board 66,
The connection terminals 35a, 35a, ... Penetrating through the wiring board 66 and inserted into the connection holes 77, 77, and the connection plates 76, 76, are connected by soldering to be assembled on the wiring board 66.

In this way, the electrical elements assembled on the wiring board 66 and the lead frames 74, 7 are formed.
The bobbin 63, the coil 35, the magnetic path forming member 37, and the plurality of collars 67 are inserted into a mold and integrally molded with a synthetic resin.
A wiring block assembly 65 'having a rectangular block shape is formed.

According to the second embodiment, the wiring section assembly 6
5'is an integrated unit in which each coil 35 is connected to the lead frame 74 on the wiring board 66, and it is not necessary to perform connection work when assembling the solenoid valve device. It is possible to secure the conductivity of the connection portion without adhering grease or the like to the connection portion and to improve the assembling property.

Moreover, each lead frame 74, 74 ...
Since they are arranged on the wiring board 66 with the temporary holding members 75, 75 ... Positioned relative to each other, the lead frames 74, 74 ... The complicated work of positioning and arranging on the coil 66 is not required, and the work of connecting the coils 35, 35 ... And the lead frames 74, 74 ... Is facilitated, and the number of manufacturing steps can be reduced.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible to do.

For example, the plurality of collars 67 and the magnetic path forming members 37 may not be integrated with the wiring portion assembly 65, and the collars 65 and the magnetic path forming portions may be formed in the plurality of holes provided in the wiring portion assembly. The members 37 ... May be fitted together.

[0058]

As described above, according to the first aspect of the present invention, the plurality of coils are held by the temporary holding member made of a non-conductive material, and the mutual positions are dealt with in a predetermined state. Since the plurality of conductors connected to the coil are embedded in the mold part made of synthetic resin, the work of connecting the coil and the conductor is not necessary at the time of assembling, and the assembling workability can be improved. Not only can grease be prevented from adhering to the connection between each coil and the conductor to ensure electrical continuity of the connection, but positioning of each conductor during molding becomes extremely easy, and synthetic resin can be used. It is possible to reduce the number of molding work steps.

According to a second aspect of the invention, a wiring board common to each solenoid valve constituting unit, a plurality of coils,
A mold in which a plurality of conductors, which are held by a temporary holding member made of a non-conductive material and are arranged on the wiring board in a state where their mutual positions are predetermined, and which are connected to corresponding coils, are made of a synthetic resin. Since it is embedded in the part, the work of connecting the coil and the conductor is not required at the time of assembling, and the workability of assembling can be improved, and grease etc. can be applied to the connecting part between each coil and the conductor on the wiring board. Not only can the adhesion be prevented and the continuity of the connection can be ensured, but the positioning and arrangement of each conductor on the wiring board becomes extremely easy during molding, and the man-hours required for molding with synthetic resin can be reduced. Is possible.

[Brief description of drawings]

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

FIG. 2 is a view taken along the line 2-2 of FIG.

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

FIG. 4 is a vertical 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 a wiring part assembly.

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

8 is a sectional view taken along line 8-8 of FIG.

FIG. 9 is a perspective view showing a state where a conductor is held by a temporary holding member.

FIG. 10 is a vertical sectional view of a normally open solenoid valve corresponding to FIG. 4 of the second embodiment.

11 is a vertical cross-sectional view of a normally closed solenoid valve corresponding to FIG.

12 is a vertical cross-sectional view of a wiring part assembly corresponding to FIG.

[Explanation of symbols]

21 ... Base body 30 ... Guide tube 31 _C , 31 _O ... Housing 32 _C , 32 _O ... Fixed core 33 ... Movable core 35 ... Coil 36 _C , 36 _O ... Electromagnetic Valve component unit 66 ... Wiring board 68 ... Mold part 74 ... Lead frame as conductor 75 ... Temporary holding member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Aoki 840 Kokubu, Ueda City, Nagano Prefecture Nisshin Kogyo Co., Ltd.

Claims (2)

[Claims] 1. A housing (31 _C , 31 ₀ ) having a cylindrical guide cylinder (30), a fixed core (32 _C , 32 _O ) fixed to one end of the guide cylinder (30), and a fixed core. Plural solenoid valve constituent units having a movable core (33) facing the cores (32 _C , 32 _O ) and housed in the guide cylinder (30) and a coil (35) surrounding the guide cylinder (30). In a solenoid valve device in which (36 _C , 36 _O ) are attached to a common base body (21) and each coil (35) is connected to a conductor (74), a plurality of coils (35) and a non-conductive material are used. Coil (35) held by a temporary holding member (75) corresponding to each other in a predetermined state of mutual positions.
An electromagnetic valve device, wherein a plurality of conductors (74) connected to are embedded in a mold part (68) made of synthetic resin. 2. A housing (31 _C , ₃₁₀ ) having a cylindrical guide cylinder (30), a fixed core (32 _C , 32 _O ) fixed to one end side in the guide cylinder (30), and a fixed body. Plural solenoid valve constituent units having a movable core (33) facing the cores (32 _C , 32 _O ) and housed in the guide cylinder (30) and a coil (35) surrounding the guide cylinder (30). (36 _C, 36 _O) are mounted on a common base (21), the solenoid valve device in which each coil (35) is connected to the conductor (74), each magnet valve units (36 _C,
36 _O ), a wiring board (66), a plurality of coils (35), and a temporary holding member (75) made of a non-conductive material.
And a plurality of conductors (74) connected to the corresponding coils (35) and made of a synthetic resin. A solenoid valve device, wherein the solenoid valve device is embedded in a portion (68).