JPH076574U - Solenoid valve device - Google Patents

Abstract

(57) [Abstract] [Purpose] A housing having a guide cylinder, a fixed core on one end side of the guide cylinder, a movable core housed in the guide cylinder, and a coil wound around a bobbin surrounding the guide cylinder. In a solenoid valve device in which a plurality of solenoid valve constituent units each having a solenoid valve are mounted on a common base, and each coil is connected to a conductor on a wiring board common to each solenoid valve constituent unit, the assemblability is improved and wiring is performed. It is possible to prevent the continuity of the connection between the substrate and the coil from being impaired. A fitting protrusion 63a provided on one of the bobbins 63 and a wiring board 66 is fitted into a fitting recess 71 provided on the other, inserted into the wiring board 66, and attached to the coil 35. The wiring board 66 and the coil 35 wound around each bobbin 63 are embedded in a mold portion 68 made of a synthetic resin in a state where the continuous connection terminals are connected to the conductor 74.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is directed to a housing having a guide cylinder extending in a cylindrical shape with a non-magnetic portion interposed, a fixed core fixed to one end of the guide cylinder, and a movable core housed in the guide cylinder facing the fixed core. And a plurality of solenoid valve constituent units each having a coil wound around a bobbin surrounding the guide tube are mounted on a common base, and each coil is connected to a conductor on a wiring board common to each solenoid valve constituent unit. Solenoid valve device.

[0002]

[Prior art]

 Conventionally, such a device is known, for example, from Japanese Examined Patent Publication No. 3-38466.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional one, the wiring board is arranged separately from each solenoid valve constituent unit, and after mounting each solenoid valve constituent unit to the base, It is hard to say that the workability of assembly is excellent because the connection is made. 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.

The present invention has been made in view of the above circumstances, and provides an electromagnetic valve device in which the assemblability is improved and the continuity of the connection between the wiring board and the coil is prevented from being impaired. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 To achieve the above object, according to the present invention, a circular fitting protrusion or a circular fitting recess is coaxially provided on the wiring board side of each bobbin, and the wiring board has a circular fitting protrusion. A plurality of fitting recesses or circular fitting projections are provided, and a plurality of insertion holes for inserting the connection terminals connected to the coil are provided. Each fitting projection is fitted in each fitting recess and each insertion hole. The wiring board and the plurality of coils wound around each bobbin are embedded in a mold part made of synthetic resin in a state where the connection terminals respectively inserted in the holes are connected to the conductors.

[0006]

【Example】

 An embodiment 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 a solenoid valve device, FIG. 2 is a view taken along line 2-2 of FIG. 1, and FIG. 6 is a vertical sectional view of the normally open electromagnetic valve, FIG. 5 is a vertical sectional view of the normally closed electromagnetic valve, FIG. 6 is a side view of the wiring section assembly, and FIG. 7 is FIG. 7 is a sectional view taken along line 7-7, FIG. 8 is a sectional view taken along line 8-8 of FIG. 7, and FIG. 9 is a partial perspective view of the mold assembly.

First, in FIG. 1, FIG. 2 and FIG. 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 the normally open electromagnetic valves V _OFL arranged in correspondence with the left rear wheel brake device, V _ORR, V _OFR, and V _ORL, their normally open electromagnetic valves _{V OFL, V ORR, V OFR} , separately V _ORL Normally-closed solenoid valves V _CFL , V _CRR , V _CFR , and V _CRL arranged in line with each other.

The base 21 formed of magnetic metal in a block shape has four brake device side connection ports 25 individually connected to each brake device._FL, 25_RR, 25_FR, 25_RL And a pair of master cylinder side connection ports 26 connected to a pair of output ports of a tandem master cylinder (not shown).₁, 26₂And a reservoir side connection port 27 connected to a reservoir (not shown). Thus, the normally open solenoid valve V_OFLIs the breaker device side connection port 25_FLAnd master cylinder side connection port 26₁The normally closed solenoid valve V_CFLIs the brake device side connection port 25_FLIt is possible to switch between communication and cutoff between the reservoir side connection port 27 and the reservoir side connection port, and a normally open solenoid valve V_ORRIs the brake device side connection port 25_RRAnd master cylinder side connection port 26₁The normally closed solenoid valve V can be switched between open and closed._CRRIs the brake device side connection port 25_RRIt is possible to switch between communication and cutoff between the reservoir side connection port 27 and the reservoir side connection port, and the normally open solenoid valve V_OFRIs the brake device side connection port 25_FRAnd master cylinder side connection port 26₂The normally closed solenoid valve V can be switched between open and closed. _CFR Is the brake device side connection port 25_FRIt is possible to switch the connection and disconnection between the reservoir side connection port 27 and the reservoir side connection port 27_ORLIs the brake device side connection port 25_RLAnd master cylinder side connection port 26₂The normally closed solenoid valve V can be switched between open and closed._CRLIs the brake device side connection port 25_RLIt is possible to switch between communication and cutoff between the reservoir side connection port 27.

The normally open solenoid valves V _OFL , V _ORR , V _OFR , and V _ORL have basically the same configuration, and the normally closed solenoid valves V _CFL , V _CRR , V _CFR , and V _{CRL are the same.} Since they have basically the same configuration, the normally open solenoid valves V _OFL , V _ORR , V _OFR , and V _ORL will be referred to as the normally open solenoid valve V _OFL , and the normally closed solenoid valve V will be described below. _{CFL, V CRR, V CF R} , for V _CRL by the normally closed electromagnetic valves V _CFL, explaining the detailed structure.

In FIG. 4, a normally open solenoid valve V_OFLIs a housing 31 having a cylindrical guide tube 30._O, A fixed core 32 fixed to one end of the guide cylinder 30_O, Fixed core 32 _O The movable core 33 and the fixed core 32, which are housed in the guide cylinder 30 facing each other_OAnd, the movable core 33 is fixed against the spring 34 compressed between the movable core 33 and the spring force of the spring 34._OSolenoid valve component unit 36 having a coil 35 surrounding the guide cylinder 30 so as to exert a magnetic attraction force to the side, and a cylindrical yoke 37 surrounding the coil 35_oEquipped with each solenoid valve V_OFL, V_ORR, V_OFR, V_ORL, V_CFL , V_CRR, V_CFR, V_CRLCommon magnetic metal pressing plate 22 and housing 31_O Are magnetically coupled to each other, and the pressing plate 22 is fastened to the base 21 by a plurality of, for example, eight bolts 24.

The housing 31 _O has a stepped cylindrical valve housing 38 _O made of magnetic metal, and a guide cylinder 30 coaxially coupled to the valve housing 38 _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 that} are coaxially connected to each other. An annular groove 41 is provided on the outer surface of the medium diameter portion 38 _OB. To be The guide tube 30 is formed of a non-magnetic material into a cylindrical shape, and is also formed of a magnetic material into a cylindrical shape in a non-magnetic portion 39 which is coaxially connected to the large diameter portion 38 _OA with a step. It is composed of a magnetic portion 40 coaxially connected to the non-magnetic portion 39.

On the other hand, at the bottom of the base 21, the housing 31_OValve housing 38 at _O Large diameter part 38_OALarge diameter fitting hole 42 for fitting the valve housing 38_OMedium diameter part 38_OBA medium diameter fitting hole 43 having an inner surface surrounding the valve housing 38_OSmall diameter part 38_OCSmall diameter fitting hole 44 for fitting the_OAnd are provided stepwise from the bottom, and the passage 45_OIs the master cylinder side connection port 26₁Be communicated to. Also, the large diameter portion 38_OAAn annular seal member 46 that contacts the inner surface of the large diameter fitting hole 42 is attached to the_OCAn annular seal member 47, which contacts the inner surface of the small-diameter fitting hole 44, is attached to this. Further valve housing 38_OMedium diameter part 38_OBA filter 48 that covers the annular groove 41 is attached to the annular groove 49._FLBe communicated to.

In the guide cylinder 30, the valve housing 38_OA closing member 50 is fitted and fixed via a seal member 51 to the end portion on the side separated from. Also the valve housing 38_OThe valve housing 38 is_OThrough the filter 52 mounted on the upper part of the passage 45_OA valve seat member 54 having a valve hole 53 communicating with is fitted and fixed. Moreover, the valve housing 38_OA cylindrical fixed core 32 is formed by fitting a part of the cylindrical fixed core 32 into the non-magnetic portion 39 of the guide cylinder 30._OIs fixed to the fixed core 32._OThe valve housing 38 by opening the outer end into the annular groove 41._OMedium diameter part 38_OBUsing the plurality of caulking recesses 57 radially provided on the valve housing 38_OIt is fixed by crimping. Furthermore, the valve housing 38_OInside the valve seat member 54 and the fixed core 32_OFixed core 32 between _O A bearing member 58 is fixed to the side, and a valve chamber 59 communicating with the annular groove 41 is formed between the bearing member 58 and the valve seat member 54.

[0015] Between the closing member 50 and the fixed core 32 _O in the housing 31 _O, the movable core 3 3 are housed. The movable core 33 is coaxially fixed with a rod 60 that coaxially and axially movably penetrates the fixed core 32 _O and has one end slidably supported by a bearing member 58. The ends are slidably fitted to the closure member 50. However, a 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 spring-biased by the spring 34 in a direction away from the fixed core 32 _O. .

A hemispherical valve body 61 capable of opening and closing the valve hole 54 is provided at one end of the rod 60 in the valve chamber 59, and the valve body 61 is normally provided with the valve hole 53 when the coil 35 is in a demagnetized state. Is opened to connect the passage 45 _O, that is, the master cylinder side connection port 26 ₁ to the annular groove 41, that is, the brake device side connection port 25 _FL .

[0017] The upper portion of the valve housing 38 _O in the housing 31 _O, the differential pressure valve 6 2 to be opened 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, It is arranged so as to bypass the valve hole 53.

The coil 35 is wound around a cylindrical bobbin 63 surrounding the guide cylinder 30, and one end surface of the bobbin 63 is brought into contact with the end surface of the large diameter portion 38 _OA of the valve housing 38 _O. . A small-diameter cylindrical fitting projection 63a is coaxially and integrally provided at the other end of the bobbin 63.

Most of the components of the normally closed solenoid valves V _CFL , V _CRR , V _CFR and V _CRL are the same as those of the normally open solenoid valves V _OFL , V _ORR , V _OFR and V _ORL. The same components as those of the normally open solenoid valves V _OFL , V _ORR , V _OFR , and 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_CFLIs a housing 31 having a guide tube 30. _C , A fixed core 32 fixed to one end of the guide cylinder 30_C, Fixed core 32_CA movable core 33 and a fixed core 32, which are housed in the guide cylinder 30 so as to face each other._CThe spring 34 contracted between the movable core 33 and the movable core 33 is fixed to the fixed core 32 against the spring force of the spring 34._CA solenoid valve constituting unit 36 having a coil 35 surrounding the guide cylinder 30 to exert a suction force to the side, and a cylindrical yoke 37 surrounding the coil 35._CAnd the housing 31 via the yoke 37._CAnd the pressing plate 22 is magnetically coupled.

The housing 31 _C has a stepped cylindrical valve housing 38 _C made of magnetic metal, and a guide cylinder 30 coaxially coupled to the valve housing 38 _C. 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 which} are coaxially connected to each other. An annular groove 41 is provided on the outer surface of the medium diameter portion 38 _CB. To be The guide cylinder 30 is formed of a non-magnetic material into a cylindrical shape, and is also formed of a magnetic material into a cylindrical shape in a non-magnetic portion 39 that is coaxially connected to the large diameter portion 38 _CA with a step. It is composed of a magnetic portion 40 coaxially connected to the non-magnetic portion 39.

On the other hand, at the bottom of the base 21, the housing 31_CValve housing 38 at _C Large diameter part 38_CALarge diameter fitting hole 42 for fitting the valve housing 38_CMedium diameter part 38_CBA medium diameter fitting hole 43 having an inner surface surrounding the valve housing 38_CSmall diameter part 38_CCSmall diameter fitting hole 44 for fitting the_CAnd are provided stepwise from the bottom, and the passage 45_CCommunicates with the reservoir side connection port 27. Also, the large diameter portion 38_CAAn annular seal member 46 that comes into contact with the inner surface of the large diameter fitting hole 42 is attached to the small diameter portion 38._CCAn annular seal member 47 that contacts the inner surface of the small-diameter fitting hole 44 is attached to the. Further valve housing 38_CMedium diameter part 38_CBA filter 48 that covers the annular groove 41 is attached to the annular groove 49._FLBe communicated to.

A fixed core 32 _C formed in the shape of a bottomed cylinder is fitted and fixed to the end of the guide cylinder 30 on the side separated from the valve housing 38 _O. Also the upper part of the valve housing 38 _C the 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 housings 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.

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

A hemispherical valve body 61 capable of opening and closing the valve hole 54 is provided at one end of the rod 60 in the valve chamber 59, and the valve body 61 normally has the valve hole 53 when the coil 35 is in a demagnetized state. To close the passage 45 _C, that is, the reservoir side connection port 27 from the annular groove 41, that is, the brake device side connection port 25 _FL .

Each normally open solenoid valve V_OFL, V_ORR, V_OFR, V_ORLSolenoid valve component unit in 36_OAmong them, the valve housing 38 provided with the filters 48, 52, the seal members 46, 47, the valve seat member 54, the bearing member 58 and the differential pressure valve 62._OA housing 31 formed by connecting a guide cylinder 30 closed by a closing member 50 to the_O, The housing 31 _O Fixed core 32 fixed to_O, Fixed core 32_OA fixed core 32 and a movable core 33 in which a rod 60 having a valve body 61 that can be seated on a valve seat member 54 is fixedly housed in_OThe spring 34, which is contracted between the movable core 33 and housed in the guide cylinder 30, is provided in the operating portion assembly 64._OAre unitized as. Normally closed solenoid valve V_CFL, V_CRR, V_CFR, V_CRLAmong them, the valve housing 38 provided with the filters 48, 52, the seal members 46, 47, the valve seat member 54 and the bearing member 58._CA housing 31 in which a guide cylinder 30 is connected to_C, The housing 31_CCore 32 fitted and fixed to the guide cylinder 30 of_C, Fixed core 32_CA movable core 33, which is housed in the guide cylinder 30 so as to oppose thereto, and on which a rod 60 having a valve body 61 that can be seated on a valve seat member 54 is fixedly mounted, and a fixed core 32._CThe ridge 34 that is contracted between the movable core 33 and housed in the guide cylinder 30 is provided with the operating portion assembly 64._CAre each unitized.

The operating portion assemblies 64 _O, ..., 64 _C ... Corresponding to the operating portion assemblies 64 _O , 64 _C , respectively, are provided with large-diameter fitting holes 42 coaxially provided in the base body 21. The small-diameter fitting hole 43 and the small-diameter fitting hole 44 are fitted together.

On the other hand, the magnet valve units 36 _O, 36 _C components serving coil 35 and the yoke 37, all magnet valve units 36 _O ..., 36 _C ... unitized as a common wiring portion assembly 65 Each of the operating portion assemblies 64 _O, ..., 64 _C ... Is fitted in the wiring portion assembly 65 in a removable manner.

With reference to FIG. 6, FIG. 7 and FIG. 8 together, the wiring part assembly 65 includes a plurality of coils 35 ... Wound on the bobbin 63, a plurality of yokes 37. V _CFL , V_CRR, V_CFR, V_CRL, V_CFL, V_CRR, V_CFR, V_CRL, Which are common to the coils 35, and a plurality of collars 67, which are made of metal and have rigidity for inserting the plurality of bolts 24 for fastening the pressing plate 22 to the base body 21, respectively. It is integrally embedded in a mold portion 68 made of synthetic resin, and is formed in a thin rectangular block shape.

Referring also to FIG. 9, wiring board 66 is provided with a plurality of circular fitting recesses 71 ... As fitting recesses for fitting fitting protrusions 63a of bobbins 63. , Eight pairs of insertion holes 72, 72 formed in a pair of arcs on both sides of the fitting holes 71, and two collars 67, 67 out of the eight collars 67. A pair of insertion holes 73, 73 for insertion, and eight pairs of insertion holes 79, 79 for inserting eight pairs of connection terminals 35a, 35a connected to the coil 35 are formed.

On the other hand, the operating portion assembly 64 of each of the yokes 37 ..._O…, 64 _C A pair of cutouts 37a, 37a are provided on the one diameter line at the end opposite to the cutouts 37a, 37a. It is formed so as to have a shape to be inserted into 72 ... Moreover, on the side opposite to the coils 35, the wiring board 66 is provided with eight pairs of lead frames 74, 74 ... As conductors, each pair being connected to each coil 35. The notches 37a, 37a are provided corresponding to the wiring portions of the lead frames 74, 74 ... Further, the wiring board 66 is preliminarily provided with a plurality of protrusions 75 ... For locking the lead frames 74, 74 ... To define the wiring portions of the lead frames 74, 74. , The wiring work of the lead frames 74, 74 ... To the wiring board 66 is facilitated by utilizing the projections 75.

Meanwhile, one ends of all the lead frames 74, 74 ... Are gathered at the central portion on one side of the wiring board 66, and are arranged in two rows of eight columns so as to project laterally from the wiring board 66. To be done. Moreover, the projecting ends of the lead frames 74 ... Are twisted by 90 degrees in order to function as the connection terminals 74a.

When manufacturing the wiring part assembly 65, a molding assembly 76 as shown in FIG. 9 is prepared. The molding assembly 76 and the wiring board 66 are provided to prevent surges. Electrical elements such as a plurality of diodes 76, etc., which are arranged on the wiring board 66 corresponding to the respective coils 35, a plurality of lead frames 74, ... arranged on the wiring board 66, and the bobbin 63, respectively. The coil 35 is wound and the plurality of yokes 37 are formed. The coils 35 are positioned on the wiring board 66 by inserting the fitting protrusions 63a of the bobbins 63 around which the coils 35 are wound into the fitting holes 71, respectively. Moreover, by inserting the connecting terminals 35a, 35a ... Into the insertion holes 79, 79 ..., The rotation of each bobbin 63 around the axis is prevented. Further, the respective yokes 37 ... Are attached to the wiring board 66 by inserting their ends into the insertion holes 72. .. are connected to the corresponding lead frames 74 by soldering or the like to form a molding assembly 76.

The mold assembly 76 and the plurality of collars 67 are inserted into a mold and integrally molded with a synthetic resin so that the mold assembly 76 and the respective collars 67. The space between them is filled with the mold part 68, and the wiring part assembly 65 in the form of a rectangular block is formed so that both ends of each yoke 37 are flush with both surfaces of the mold part 68. A plurality of holes 80 ... Which are continuous with the inner surface of the bobbins 63 ... Moreover, at the time of the molding, a rectangular tubular coupler 68a surrounding the connection terminals 74a of all the lead frames 74 is integrally formed on the molding portion 68.

The guide cylinders 30 ... In the respective operation unit assemblies 64 _O ..., 64 _C ... Are inserted into / removed from the bobbins 63 ... And the holes 80 ... It is possible to be fitted.

Further, the axial length of each collar 67 in the wiring assembly 65 is set to be slightly larger than the length of each bobbin 63 and each yoke 37, that is, the thickness of the molded portion 68.

Next, the operation of the first embodiment will be described. Each normally open solenoid valve V_OFL, V_{OR R} , V_OFR, V_ORLThen, by exciting the coil 35, the fixed core 32_OKaraben housing 38_OThe fixed core 32 through the yoke 37, the pressing plate 22, the magnetic portion 40 of the guide cylinder 30 and the movable core 33._OTo the fixed core 32._OThe valve body 61 closes the valve hole 53 by being sucked to the side. In addition, each normally closed solenoid valve V_CFL, V_CRR, V_CFR, V_CRLThen, by exciting the coil 35, the fixed core 32_CTo press plate 22, yoke 37, valve housing 38_CAnd the fixed core 32 via the movable core 33._CMagnetic flux is generated and the movable core 33 moves to the fixed core 32. _C The valve body 61 opens the valve hole 53 by being sucked to the side.

In such a solenoid valve device, the solenoid valve constituting units 36 _O and 36 _C in the respective solenoid valves V _OFL , V _ORR , V _OFR , V _ORL , V _CFL , V _CRR , V _CFR and V _CRL are operated. Since the subassembly 64 _O and 64 _C and the wiring subassembly 65 into which the operating subassembly 64 _O and 64 _C are removably fitted are provided, each of the operating subassembly 64 is attached to the base 21. _The solenoid valve device is constructed by assembling the wiring part assembly 65 with the _O ..., 64 _C ... Assembled.

That is, each operating unit assembly 64_O…, 64_C, And the wiring section assembly 65 can be individually checked for performance, and the operation section assembly 64 after the performance check is completed._O…, 64_C, And the wiring part assembly 65 can be used to assemble the solenoid valve device, which facilitates quality control and improves workability in assembly. Moreover, each operating unit assembly 64_O…, 64_CCheck the sealability of those 64 _O …, 64_CCan be performed with the base body 21 assembled, so that good sealing performance can be ensured even after the wiring part assembly solid body 65 is assembled, and each operating part assembly 64 can be secured._O…, 64_CBy further assembling the wiring part assembly 65 in a state where the wiring part assembly 65 is assembled to the base 21, the positioning of the wiring part assembly 65 is easy.

The wiring part assembly 65 is an integrated unit in a state where the coils 35 and the lead frame 74 of the wiring board 66 are connected to each other, and connection work is performed when the solenoid valve device is assembled. It is not necessary to carry out the above operation, and therefore, grease or the like does not adhere to the connecting portion, so that the conductivity of the connecting portion can be secured and the assembling property can be improved. The positions of the bobbins 63 ... with respect to the wiring board 66 are determined by fitting the fitting protrusions 35a protruding from the bobbins 63 into the fitting holes 71 provided in the wiring board 66. Since the connection terminals 35a, 35a connected to the coil 35 are inserted into the insertion holes 79, 79 provided in the wiring board 66, the bobbins 63 ... It is not necessary to provide the above parts.

The wiring portion assembly 65 is sandwiched between the base plate 21 and the pressing plate 22 which is fastened to the base body 21 by a plurality of bolts 24. The attaching force can be received by the rigid collar 67, and a large load does not act on each of the yokes 37 and the guide cylinder 30. Therefore, the magnetic characteristics of each of the yokes 37 and the guide cylinder 30. Will not be adversely affected.

Further, the coupler 68a is integrally provided on the mold portion 68 of the wiring portion assembly 65, and the connection terminals 74a ... By twist forming of the lead frames 74 ... Are arranged so as to face the inside of the coupler 68a. As a result, the connection cord is not exposed from the wiring part assembly 65, and therefore a fixing means for the connection cord is not required, which can contribute to a reduction in the number of parts.

FIG. 10 shows a second embodiment of the present invention. Circular fitting recesses 63b are coaxially provided on the wiring board 66 'side of each bobbin 63' ... A plurality of circular fitting protrusions 81 are provided on the.

Also according to the second embodiment, by fitting the fitting projections 81 into the fitting recesses 63b, the bobbins 63 '... Are positioned on the wiring board 66' with certainty.

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 modifications can be made without departing from the present invention described in the scope of claims for utility model registration. It is possible to make design changes.

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

[0047]

[Effect of device]

 As described above, according to the present invention, a circular fitting protrusion or a circular fitting recess is coaxially provided on the wiring board side of each bobbin, and the wiring board has a circular fitting recess. Portions or circular fitting protrusions are provided, and a plurality of insertion holes for inserting the connection terminals connected to the coil are provided. When each fitting protrusion is fitted in each fitting recess, each insertion hole is formed. Since the wiring board and the coils wound around each bobbin are embedded in the molded part made of synthetic resin with the connection terminals inserted in the respective parts connected to the conductors, positioning and rotation prevention are ensured. Each coil can be attached to the wiring board and connected to the conductor, and by embedding it in the mold part in that state, the work of connecting the coil and the conductor is unnecessary at the time of assembling. Improving workability It is possible, it is possible to prevent the grease or the like is deposited with the connecting portion between the coil and the conductor to ensure the continuity of the connection.

[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 partial perspective view of a mold assembly.

FIG. 10 is a sectional view corresponding to FIG. 4 of the second embodiment.

[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 39 ... Non-magnetic part 63, 63 '... Bobbin 63a, 81 ... Fitting projection 63b ... Fitting recess 66, 66' ... Wiring board 68 ... Mold part 71 ... Fitting hole as fitting recess 74 ... Lead frame as conductor

Claims (1)

[Scope of utility model registration request] 1. A housing (31 _C ) having a guide tube (30) extending cylindrically with a non-magnetic portion (39) interposed.
31 _0), a fixed core fixed to one end of the guide tube _{(30) (32 C, 32} O), the fixed core (32 _C, 32
_The movable core (33) that is housed in the guide cylinder (30) facing the _O ) and the bobbin (6) that surrounds the guide cylinder (30).
A plurality of magnet valve unit having a coil (35) which is wound around _{3,63 ') (36 C, 36} O) are mounted on a common base (21), each coil (35) is solenoid valves The wiring board (6) common to the constituent units (36 _C , 36 _O ).
6, 66 ') is connected to the conductor (74) on the wiring board (6, 6') of each bobbin (63, 63 ').
6, 66 ') side is provided with a circular fitting protrusion (63a) or a circular fitting recess (63b) coaxially, and the wiring board (66, 66') is provided with a circular fitting recess. (71) or a plurality of circular fitting protrusions (81) and a connecting terminal (35) connected to the coil (35).
A plurality of insertion holes (79) through which a) is inserted are provided, and each fitting protrusion (63a, 81) is provided with each fitting recess (71, 63).
b) and the connection terminals (35a) inserted into the insertion holes (79) and connected to the conductors (74), the wiring board (66, 66 ') and the bobbins (6).
An electromagnetic valve device, wherein a plurality of coils (35) wound around 3, 63 ') are embedded in a mold portion (68) made of synthetic resin.