JPH0573377U - Solenoid valve device - Google Patents

Abstract

(57) [Abstract] [Purpose] A housing formed in a cylindrical shape with a non-magnetic body interposed in the middle, a fixed core fixed to the housing, and a movable housing housed in the housing 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 a housing to exert a suction force for sucking the movable core toward the fixed core side are mounted on a common base, the number of parts can be reduced and To facilitate coil assembly. A coil assembly assembly 64 common to a plurality of solenoid valve constituting units 25 _O and 25 _C is formed by integrally molding a plurality of coils 24 with a synthetic resin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention has a cylindrical housing having a non-magnetic material in the middle, a fixed core fixed to the housing, a movable core facing the fixed core and housed in the housing, and a movable core. The present invention relates to a solenoid valve device in which a plurality of solenoid valve constituent units having a coil surrounding a housing for exerting a suction force for sucking the magnet to the fixed core side are mounted on a common base.

[0002]

[Prior Art]

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

[0003]

[Problems to be solved by the device]

 In the above conventional type, multiple coils are individually separated corresponding to the solenoid valve constituent units, the number of parts is large, and it is necessary to assemble coils individually in each housing during assembly, which is complicated. is there.

The present invention has been made in view of such circumstances, and an object thereof is to provide an electromagnetic valve device in which the number of parts is reduced and the assembly is facilitated.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a coil assembly assembly common to a plurality of solenoid valve constituting units is formed by integral molding of a plurality of coils with synthetic resin.

[0006]

【Example】

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

1 to 7 show a first embodiment of the present invention. FIG. 1 is a vertical sectional front view of a solenoid valve device, which is a sectional view taken along line 1-1 of FIGS. 2 and 3. 1 is a plan view taken in the direction of arrow 2 in FIG. 1, FIG. 3 is a bottom view taken in the direction of arrow 3 in FIG. 1, FIG. 4 is a sectional view taken along line 4-4 of FIG. 1, FIG. 5 is a sectional view taken along line 5-5 of FIG. 2 is an enlarged sectional view taken along line 6-6 of FIG. 2, and FIG. 7 is a sectional view taken along line 7-7 of FIG.

1 to 5, this solenoid valve device is used for an antilock brake device for a vehicle, and is formed in a rectangular block shape from a lightweight and nonmagnetic metal such as an aluminum alloy. Base 10 and an oil passage block 11 which is formed of a lightweight aluminum alloy into a rectangular block shape and is connected to the lower surface of the base 10. An oil passage block 11 formed of magnetic metal is connected to the upper surface of the base 10. A casing 13 including a cover plate 12 is provided.

The cover plate 12 is fastened to the base plate 10 with four bolts 16 screwed to the base plate 10, and the base plate 10 and the cover plate 12 penetrate the base plate 10 and are screwed to the oil passage block 11. The bolt 15 is fastened to the oil passage block 11. Further, between the base plate 10 and the cover plate 12, a gasket 14 formed in a thin plate shape with rubber, paper, synthetic resin or the like is interposed.

In the oil passage block 11 of the casing 13, the right front wheel brake input ports 17 are arranged in a line._FR, Output port 18 for the right front wheel brake_FR, And the release port 19 and the input ports 17 for the left and right rear wheel brakes in line_ROutput port 18 for left and right rear wheel brakes_RAnd the left front wheel brake input port 17 lined up_FLAnd output port 18 for left front wheel brake_FLAnd each input port 17_FR, 17_R, 17 _FL And each output port 18_FR, 18_R, 18_FLAre set as positions that correspond to each other. On the other hand, the casing 13 has an input port 17 for the right front wheel brake._FRAnd output port 18_FRNormally open solenoid valve V that can switch between open and closed_OFRAnd the output port 18 for the right front wheel brake_FRNormally closed solenoid valve V capable of switching between shutoff and communication between the release port 19 and the release port 19_CFRAnd the left and right rear wheel brake input ports 17_RAnd output port 18_RNormally open solenoid valve V that can switch between open and closed_ORAnd the left and right rear wheel brake output ports 18_RNormally closed solenoid valve V capable of switching between disconnection and communication between the release port 19 and the release port 19_CRAnd input port 17 for left front wheel brake_FLAnd output port 18_FLNormally open solenoid valve V that can switch between open and closed_OFLAnd the output port 18 for the left front wheel brake _FL Normally closed solenoid valve V capable of switching between disconnection and communication between the release port 19 and the release port 19_CFLAnd are installed.

The normally open solenoid valves V _OFR , V _OR and V _OFL have basically the same configuration, and the normally closed solenoid valves V _CFR , V _CR and V _CFL have basically the same configuration. Since it has a configuration, the normally open solenoid valves V _OFR , V _OR , and V _OFL will be referred to below as the normally open solenoid valves V _OFR , and the normally closed solenoid valves V _CFR , V _CR , and V _CFL. The detailed configuration of the normally closed solenoid valve V _CFR will be described.

In FIG. 6, the _normally open solenoid valve V _OFR has a cylindrical housing 21 with a non-magnetic body 20 in the middle, a fixed core 22 fixed to the housing 21, and a fixed core 22. The movable core 23 housed in the housing 21 so as to face the housing 21, and the coil 24 surrounding the housing 21 to exert a suction force for sucking the movable core 23 toward the fixed core 22 side. It is equipped with a solenoid valve constituting unit 25 _O fitted and held between the solenoid valves, is made of magnetic metal in common to all solenoid valves V _OFR , V _OR , V _OFL , V _CFR , V _CR , and V _CFL , and is in the middle of the housing 21. The bottom plate 26 that is magnetically coupled to the portion and the lid plate 12 are magnetically coupled to each other via a cover 27 ₁ that is formed of magnetic metal and has an arc-shaped cross section that surrounds approximately half the circumference of the coil 24.

A recess 28 is provided on the upper surface of the base _plate 10 in common to all the solenoid valves V _OFR , V _OR , V _OFL , V _CFR , V _CR , and V _CFL , and each _normally- open solenoid valve V _OFR. , V _OR , and V _OFL , respectively, a large-diameter mounting hole 29 opening to the bottom surface of the recess 28, a small-diameter mounting hole 30 coaxially connected to the large-diameter mounting hole 29 via a step, and a small-diameter mounting hole 30. The base plate 10 is provided with a connection hole 31 communicating with the right front wheel brake input port 17 _FR of the oil passage block 11 and connected to the base 10 in the eccentric position. To be done.

The housing 21 is fitted into the large-diameter mounting hole 29 and the small-diameter mounting hole 30 via a pair of seal members 33 and 34, and an annular chamber 35 is provided between the housing 21 and the step between the mounting holes 29 and 30. The stepped cylindrical body 36 made of magnetic metal and the cylindrical body 37 made of magnetic metal are coupled to each other via the non-magnetic body 20 formed in a cylindrical shape. A closing member 38 made of magnetic metal is fitted and fixed to the upper end of the cylindrical body 37 via a sealing member 39, and a valve seat 40 having a valve hole 40 communicating with the connection hole 31 is formed in the lower part of the stepped cylindrical body 36. The member 41 is fitted and fixed. The fixed core 22 is caulked and fixed to the upper part of the stepped cylindrical body 36 by utilizing a caulking recess 42 provided on a side portion of the stepped cylindrical body 36. A bearing member 43 is fixed between 41 and the fixed core 22 near the fixed core 22. Thus, a valve chamber 44 is formed between the bearing member 43 and the valve seat member 41, and the valve chamber 44 communicates with the annular chamber 35.

A movable core 23 is housed in the housing 21 between the closing member 38 and the fixed core 22. A rod 45 is coaxially fixed to the movable core 23, the rod 45 having one end slidably supported by a bearing member 43 and penetrating the fixed core 22 coaxially and movably in the axial direction. The closing member 38 is slidably fitted. Moreover, a spring 46 surrounding the rod 45 is contracted between the fixed core 22 and the movable core 23, and the movable core 23 is biased by the spring 46 in a direction away from the fixed core 22.

Moreover, a spherical valve element 47 capable of opening and closing the valve hole 40 is fixed to one end of the rod 45 in the valve chamber 44, and the valve element 47 is a valve hole in the normal state when the coil 24 is in the demagnetized state. By opening 40, the connection hole 31, that is, the right front wheel brake input port 17 _FR is connected to the annular chamber 35.

The normally closed solenoid valves V _CFR , V _CR , and V _CFL have many of the same constituent elements as the normally open solenoid valves V _OFR , V _OR , and V _OFL. The same components as those of the type solenoid valves V _OFR , V _OR , and V _OFL are designated by the same reference numerals, and the configuration of the normally closed solenoid valve V _CFR will be described below.

The normally closed solenoid valve V _CFR includes a cylindrical housing 21 having a non-magnetic body 20 in an intermediate portion thereof, a fixed core 48 fixed to the housing 21, and a housing 21 facing the fixed core 48. It has a movable core 23 housed therein, and a coil 24 surrounding the housing 21 to exert a suction force for sucking the movable core 23 to the fixed core 22 side. A bottom plate 26 and a cover plate 12 which are provided with a solenoid valve constituting unit 25 _C to be held and are magnetically coupled to an intermediate portion of the housing 21 are provided with a cover 27 ₁ made of magnetic metal and having an arc-shaped cross section. It is magnetically coupled.

A large-diameter mounting hole 49 opening to the bottom surface of the recess 28 at a position corresponding to each of the normally closed solenoid valves V _CFR , V _CR , and V _CFL , and coaxially via a step in the large-diameter mounting hole 49. The base 10 is provided with a continuous small-diameter mounting hole 50 and a connection hole 51 that communicates with the small-diameter mounting hole 50 at an eccentric position and communicates with the release port 19 of the oil passage block 11. A filter 52 is attached to the.

A fixed core 48 is fitted and fixed to the upper end portion of the cylindrical body 37 of the housing 21 via a seal member 53, and a valve hole 40 communicating with the connection hole 51 is formed in the lower portion of the stepped cylindrical body 36. The valve seat member 41 included therein is fitted and fixed. Further, a bearing member 43 forming a valve chamber 44 with the valve seat member 41 is fixed in the stepped cylindrical body 36, and an annular chamber 54 formed between the housing 21 and the base 10 is the valve chamber. 44.

The movable core 23 is housed in the housing 21 between the fixed core 48 and the bearing member 43. A rod 45, one end of which is slidably supported by a bearing member 43, is coaxially fixed to the movable core 23, and the other end of the rod 45 is slidable by a bearing member 55 provided on a fixed core 48. Supported by. Further, a spring 46 surrounding the rod 45 is contracted between the bearing member 55 and the movable core 23, and the movable core 23 is biased by the spring 46 in a direction away from the fixed core 48.

Moreover, a spherical valve body 47 capable of opening and closing the valve hole 40 is fixed to one end of the rod 45 in the valve chamber 44, and the valve body 47 is a valve hole in the normal state when the coil 24 is in the demagnetized state. 40 is closed to disconnect the connection hole 51, that is, the opening port 19 from the annular chamber 54.

By the way, between the normally open solenoid valve V _OFR side and normally closed solenoid valve V _CFR side annular chambers 35 and 54, the normally open solenoid valve V _OR side and the normally closed solenoid valve V _CR side annular chamber. The annular chambers 35 and 54, and the annular chambers 35 and 54 on the normally open solenoid valve V _OFL side and the normally closed solenoid valve V _CFL side are communicated with each other via a communication passage 56 provided in the base 10. The communication passages 56 are respectively connected to the connection holes 57 provided in the board 10 so that the input ports 18 _FR , 18 _R , and 18 _FL are not connected to each other. Each is installed. Further, the lower portions of the small-diameter mounting holes 50 corresponding to the normally closed solenoid valves V _CFR , V _CR , and V _CFL are communicated with each other via a communication passage 59 provided in the base plate 10. One end communicates with a connection hole 51 communicating with the release port 19.

Referring also to FIG. 7, the solenoid valve constituting unit 25 _O in each of the _normally open solenoid valves V _OFR , V _OR and V _OFL includes an operating portion assembly 60 _O and the operating portion assembly 60 _O. And a coil assembly 61 that is fitted so as to be able to be removed. And Thus, operating portion assembly 6 0 _O is fixed core 22, the closure member 38, the valve seat member 41 and the housing 21 to the bearing member 43 is fixed, the rod 45 having the valve body 47 to the tip is fixed The movable core 23 and the spring 46 are housed, and the coil assembly 61 is formed into a cylindrical shape by molding the coil 24 wound around the bobbin 63 with synthetic resin. The coil assembly 61 is formed with a fitting hole 62 into which the non-magnetic body 20 and the cylindrical body 37 of the actuating section assembly 60 _O are removably fitted.

Further the normally closed electromagnetic valves V _CFR, V _CR, magnet valve unit in V _CFL 25 _C, the operating portion and the assembly 60 _C, co connecting or disconnecting allow fitting the actuating portion assembly 60 _C And an il assembly 61. Thus, in the operating portion assembly 60 _C , the rod 45 having the valve body 47 at the tip is fixed in the housing 21 in which the fixed core 48, the closing member 38, the valve seat member 41 and the bearing member 43 are fixed. The movable core 23 and the rod 46 that have been assembled are housed therein, and the non-magnetic body 20 and the cylindrical body 37 of the actuating unit assembly 60 _C are removably fitted into the fitting hole 62 of the coil assembly 61. R.

Moreover, the coil assembly 61 of each solenoid valve V _OFR , V _OR , V _OFL , V _CFR , V _CR , and V _CFL is further molded into the recess 28 of the base 10 as a coil assembly assembly 64 by molding. It is integrated into almost the corresponding shape. The normally open electromagnetic valves V _OFR, V _OR, the normally closed electromagnetic valve V _CFR with three covers 27 ₁ corresponding to the V _OFL is integrated, V _CR, Three cover 27 ₁ corresponding to the V _CFL Both sets of cover 27 ₁ are integrated and are inserted between the outer surface of the coil assembly assembly 64 and the inner surface of the recess 28, respectively. Thus, the pair of lead wires 65 and 66 extending from each coil assembly 61 are gathered on the side where each cover 27 ₁ does not exist, that is, in the center of the coil assembly assembly 64, and the ends of the coil assembly assembly 64 are gathered. A lead-out portion 64a provided in the portion is pulled out to the outside, and the end portions of the lead wires 65 and 66 are connected to a common coupler 67. Thus, the upper portion of the base 10 is provided with a notch 10a communicating with the recess 28 for fitting the drawer 64a.

The bottom plate 26 has six holes 68 for fitting the respective housings 21 into contact with the entire bottom surface of the recess 28, and the lower end of each cover 27 ₁ has a bottom plate 26. Is contacted with the upper surface of the peripheral portion of the.

By the way, the height of each cover 27 ₁ is such that the upper surface of the cover 27 ₁ comes into contact with the gasket 14 when the cover plate 12 is fastened to the base plate 10 via the gasket 14, It is set to such an extent that the tightening force can be prevented from acting on the cover 27 ₁ . Thus, the rattling of the cover 27 ₁ is prevented.

Next, the operation of the first embodiment will be described. Each normally open solenoid valve V_OFR, V_OR , V_OFLThen, by exciting the coil 24, the fixed core 22 to the stepped cylindrical body 36, the bottom plate 26, the cover 27₁, The lid plate 12, the closing member 38, and the movable core 23 generate a magnetic flux that reaches the fixed core 22, and the movable core 23 is attracted to the fixed core 22 side, so that the valve body 47 closes the valve hole 40. . In addition, each normally closed solenoid valve V_CFR, V _CR , V_CFLThen, by exciting the coil 24, the fixed core 48 moves to the cover plate 12 and the cover 27.₁, The bottom plate 26, the stepped cylindrical body 36, and the movable core 23 generate a magnetic flux that reaches the fixed core 48, and the movable core 23 is attracted to the fixed core 48 side, so that the valve body 47 opens the valve hole 40. Become.

In such a solenoid valve device, the solenoid valve constituting unit 25 _O in each of the _normally open solenoid valves V _OFR , V _OR , and V _OFL has an operating portion assembly 60 _O , and the operating portion assembly 60 _O is inserted and removed. is a coil assembly 61. which can fitted, also the normally closed electromagnetic valves V _CFR, V _CR, magnet valve unit in V _CFL 25 _C is 0 and _C operating portion assembly 6, the operation Since the subassembly 60 _C is composed of the coil assembly 61 that is detachably fitted, when there is an abnormality in the housing 21 and the coil 24 side is normal, the normal coil 24 side is replaced. It is possible to replace only the housing 21 side, that is, only the operating part assemblies 60 _O and 60 _C as they are.

Further, a plurality of coil assemblies 61 are integrated as a coil assembly assembly 64 by molding a synthetic resin, which not only enables reduction of the number of parts, but also each operating part assembly 60 _O. , 60 _C are fitted to the base 10 and the coil assembly 64 is inserted into the recess 28 of the base 10, so that the assembling work is simplified. However, since the cover 27 ₁ is formed in an arcuate cross section so that the lead wires 65, 66 from the coil assembly 61 can be pulled out laterally, the lead wires 65, 66 from each coil assembly 61, 66 can be collectively pulled out from the coil assembly assembly 64, the structure for pulling out the lead wires 65, 66 can be simplified, and the structure of the connecting portion of the lead wires 65, 66 can be simplified. Become.

Furthermore, since the tightening force does not act on each cover 27 ₁ when tightening the cover plate 12 to the base 10, the magnetic characteristics of the cover 27 ₁ can be stably maintained, and accordingly, each solenoid valve V ₁ can be maintained. _{It is possible} to stabilize the operation of _OFR , V _OR , V _OFL , V _CFR , V _CR and V _CFL .

FIG. 8 shows a second embodiment of the present invention, in which parts corresponding to those of the first embodiment are designated by the same reference numerals.

The base 10 ′ is common to the _normally- open solenoid valves V _OFR , V _OR , and V _OFL in which the solenoid assembly 50 _O and the coil assembly 61 constitute a solenoid valve constituting unit 25 _O , respectively. In addition, the recess 28 _O is provided, and the solenoid valve component unit 25 _C is composed of the operating portion assembly 60 _C and the coil assembly 61, respectively, and is commonly used for the normally closed solenoid valves V _CFR , V _CR , and V _CFL. And a recess 28 _C is provided. Further, a coil assembly assembly 64 _O formed by molding the coil assemblies 61 of the normally open solenoid valves V _OFR , V _OR and V _OFL , and the coil assemblies of normally closed V _CFR , V _CR and V _CFL. A coil assembly assembly 64 _C formed by molding 61 is fitted into the recesses 28 _O and 28 _C , respectively.

Further, when the lid plate 12 (see FIG. 1) is fastened to the base plate 10 ′, it has a dimension such that a tightening force does not act, and individually covers the outer circumference of each coil assembly 61 and has an arc cross section. The cover 27 ₂ is inserted between the inner surfaces of the recesses 28 _O and 28 _C and the coil assemblies 61. Moreover, each cover 27 ₂ is formed in an arc shape that is open outward, and the lead wires 65 and 66 from each coil assembly 61 are located inside the recesses 28 _O and 28 _C. It is gathered outside of and is pulled out to the outside.

According to the second embodiment as well, when there is an abnormality in the housing 21 and the coil 24 side is normal, the normal coil 24 side is left as it is and the housing 21 side, that is, the operating part assemblies 60 _O , 60. Only _C can be exchanged. Further, when there is an abnormality on the coil 24 side, it is possible to replace the coil assembly aggregates 64 _O and 64 _C without changing the operating part assemblies 60 _O and 60 _C.

Further, since the cover 27 ₂ has a shape in which the lead wires 65, 66 from the coil assembly 61 can be pulled out to the side, the lead wires 65, 66 can be collectively pulled out and the lead wires can be pulled out. The structure for drawing out 65, 66 to the outside can be simplified, and the structure of the connecting portion of the lead wires 65, 66 becomes simple.

Further, since the tightening force does not act on each cover 27 ₂ , the magnetic characteristics of the cover 27 ₂ can be stably maintained as in the first embodiment.

FIG. 9 and FIG. 10 show a third embodiment of the present invention, and the portions corresponding to the respective embodiments described above are designated by the same reference numerals.

A coil that can be fitted with the operating portion assemblies 60 _O and 60 _C of the solenoid valve constituent units 25 _O and 25 _C of the solenoid valves V _OFR , V _OR , V _OFL , V _CFR , V _CR and V _CFL , respectively. The rule assembly assembly 64 ′ is covered with a cover assembly 70 in which six arc-shaped covers 27 ₃ individually corresponding to the respective coil assemblies 61 are integrated, and the bottom plate 26 is attached to the cover assembly 70. Are integrated. Thus, the cover assembly 70 and the bottom body 26 are integrally formed by press molding.

Further, the lead wires 65 and 66 from each coil assembly 61 penetrate the cover plate 12 and are drawn out upward.

[0042] According to the third embodiment, than the cover 27 ₃ and the bottom plate 26 are integrated, the number of parts can be further reduced.

Further, in the above embodiment, the cover plate 12 and the housing 21 are magnetically coupled so as to cover a part of the coil 24 with the covers 27 ₁ , 27 ₂ , 27 ₃ and the bottom plate 26. by forming the base 10, 10 'by magnetic metal, it is also possible to omit the cover 2 7 _1, 27 _2, 27 ₃ and a bottom plate 26.

Further, the coupler 67 may not be provided in the coil assembly assembly 64.

[0045]

[Effect of the device]

 As described above, according to the present invention, since a coil assembly assembly common to a plurality of solenoid valve constituent units is formed by integrally molding a plurality of coils with synthetic resin, the number of parts can be reduced and the coil can be reduced. Can be easily assembled.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a solenoid valve device according to a first embodiment, which is a sectional view taken along line 1-1 of FIGS. 2 and 3. FIG.

FIG. 2 is a plan view taken along arrow 2 of FIG.

FIG. 3 is a bottom view taken along the arrow 3 in FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

6 is an enlarged sectional view taken along line 6-6 of FIG.

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

FIG. 8 is a sectional view corresponding to FIG. 7 of the second embodiment.

FIG. 9 is a sectional view corresponding to FIG. 6 of the third embodiment.

FIG. 10 is a perspective view of a cover and a bottom plate.

[Explanation of symbols]

10, 10 '... Base 12 ... Lid plate 20 ... Non-magnetic material 21 ... Housing 22, 48 ... Fixed core 23・ ・ ・ Movable core 24 ・ ・ ・ ・ ・ ・ Coil 25 _O , 25 _C・ ・ ・ ・ ・ ・ Solenoid valve configuration unit 64, 64 _O , 64 _C , 64 ' body

Claims (1)

[Scope of utility model registration request] 1. A housing (21) formed in a cylindrical shape with a non-magnetic body (20) interposed in the middle, fixed cores (22, 48) fixed to the housing (21), and fixed cores (22). The movable core (23) housed in the housing (21) facing the movable core (22, 48), and the housing (21) so as to exert a suction force for sucking the movable core (23) toward the fixed core (22, 48). A plurality of solenoid valve constituting units (25 _O , 25 _C ) each having a coil (24) surrounding (1) are attached to a common base (10),
A coil assembly assembly (64, 64 _O , 64 _C , 6) common to a plurality of solenoid valve constituent units (25 _O , 25 _C ) by integrally molding a plurality of coils (24) with synthetic resin.
4 ') is formed.