JPH0752776A - Anti-lock brake controller - Google Patents

Abstract

PURPOSE:To simplify a job for wiring connecting operation by unitizing a printed circuit board, having a motor drive circuit capable of electrical connection to a motor via a coupler installed in a cover and a coil drive circuit to be electrically connected to each coil and being stored and set up in the cover, as an electrical unit. CONSTITUTION:Each connecting terminal 73 of respective coils 43 is connected to a coil drive circuit 131 of a printed circuit board 127 secured onto a receiving part 121a. In addition, an electronic control unit 26, a motor drive circuit 130 and the coil drive circuit 131 on the printed circuit board 127 are electrically connected with two connecting terminals 81 and 81 of a coupler 801 on one side as power inputting use. Likewise, the connecting terminals 81 of the coupler 801 on the other are electrically connected to this electronic control unit 26 as signal inputting use. Moreover, the motor drive circuit 130 on the printed circuit board 127 is connected even to the connecting terminal 81 of another coupler 802, and a cord ranging to a motor 22 is connected to this coupler 802.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing in which a base end of a guide cylinder having a non-magnetic portion in an intermediate portion is connected to a valve housing, and a fixing member fixed to either one side of the guide cylinder in an axial direction. A core, a movable core that is spring-biased in a direction away from the fixed core and is housed in a guide cylinder, and a valve body that is continuously mounted to the movable core and that can be seated on a valve seat provided in the valve housing. A plurality of normally-open solenoid valves each including a coil wound around a bobbin surrounding the guide cylinder, and a yoke that covers at least a part of the coil and magnetically couples both ends of the guide cylinder, Normally closed solenoid valve,
The return pump and the motor connected to the return pump are
The present invention relates to an antilock brake control device that is commonly arranged on a base body, a motor drive circuit is electrically connected to a motor, and a coil drive circuit is electrically connected to each coil.

[0002]

2. Description of the Related Art Conventionally, such an apparatus has been disclosed in, for example, Japanese Patent Laid-Open No. Hei 2
It is already known from the publication of -216354.

[0003]

SUMMARY OF THE INVENTION In the above conventional one,
The normally open solenoid valve and the normally closed solenoid valve are configured to be attached to the base body after completion of assembly, and the performance as an antilock brake control device with each solenoid valve assembled to the base body after completion of individual performance inspection It is necessary to perform the inspection, and the performance inspection becomes complicated. Also, it is necessary to electrically connect the coil drive circuit to each coil after the assembly of the normally open solenoid valve and the normally closed solenoid valve to the base is completed. Wiring connection work becomes complicated.

The present invention has been made in view of the above circumstances, and provides an antilock brake control device capable of improving the performance inspection efficiency and the assembly work efficiency and simplifying the wiring connection work. With the goal.

[0005]

To achieve the above object, according to the present invention, the housing of each normally open solenoid valve and each normally closed solenoid valve has a guide tube protruding from one surface of the base body. A base plate fitted to the base body and fastened to the one surface of the base body to sandwich each housing between the base body; and a bobbin which is assembled to the base plate so that a protruding portion of the guide tube from the base plate can be inserted. Electrical connection to the motor is possible through the coil wound around the bobbin, the yoke assembled to the substrate, the cover that covers the bobbin, the coil, and the yoke and is attached to the substrate, and the coupler provided in the cover. A motor drive circuit and a printed circuit board that is housed in a cover and has a coil drive circuit electrically connected to each coil are unitized as an electrical unit.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an antilock brake device for a four-wheel vehicle will be described below with reference to the drawings.

1 to 9 show an embodiment of the present invention. FIG. 1 is a hydraulic circuit diagram of an antilock brake device for a vehicle, and FIG. 2 is a vertical side view of the antilock brake control device. 2 is a sectional view taken along line 2-2 in FIG. 3, FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG. 2, FIG. 4 is an enlarged vertical sectional view of a normally open solenoid valve, and FIG. 5 is a normally closed solenoid valve. Enlarged vertical sectional view, FIG. 6 is a vertical sectional side view of the anti-lock brake control device before assembly,
7 is a cross-sectional view of the base body taken along line 7-7 of FIG. 2, FIG. 8 is a cross-sectional view of line 8-8 of FIG. 3, and FIG. 9 is a cross-sectional view of line 9-9 of FIG.

First, in FIG. 1, the tandem type master cylinder M is provided with a pair of output ports 12 and 13 for outputting a braking fluid pressure according to the depression of the brake pedal 11, a left front wheel brake B _FL and a right rear wheel. A proportional pressure reducing valve 14 _R connected to the brake B _RR , a right front wheel brake B _FR , and a proportional pressure reducing valve 14 _L connected to the left rear wheel brake B _RL ,
An antilock brake control device 15 is provided between the output ports 12 and 13.

This anti-lock brake control device 15
Is the front left wheel brake B_FL, Right rear wheel brake B_RR, Right front wheel
Brake B_FRAnd left rear wheel brake B_RLIndividually correspond to
4 normally open solenoid valves V_OFL, V_ORR, V_OFR, V_ORL
And each normally open solenoid valve V_OFL~ V _ORLConnected in parallel to
4 check valves to be continued 17_FL, 17_RR, 17_FR, 1
7_RLAnd each wheel brake B_FL~ B_RLIndividually correspond to
4 normally closed solenoid valves V _CFL, V_CRR, V_CFR, V_CRL
And left front wheel brake B_FLAnd right rear wheel brake B _RRSide
Rabini right front wheel brake B_FRAnd left rear wheel brake B_RL~ side
A pair of reservoirs 19 respectively corresponding to₁, 19
₂And both reservoirs 19₁, 19₂Intake valve 20₁, 20
₂Pair of return pumps 21 connected via₁, 21₂
And double return pump 21₁, 21₂Common to 22
And double return pump 21₁, 21₂Discharge valve 23₁, 23
₂A pair of dampers 24 connected via₁, 24₂When,
Output ports 12 and 13 of the master cylinder M and the front
Both dampers 24₁, 24₂Ori that are respectively interposed between
Fiss 25₁, 25₂And each normally open solenoid valve V_OFL~ V_OR
LAnd each normally closed solenoid valve V_CFL~ V_CRLDemagnetization / excitation of
Electronic control unit for switching control (hereinafter referred to as ECU)
And 26.

The _normally open solenoid valve V _OFL is a master cylinder M.
The _normally open solenoid valve V _ORR is provided between the one output port 12 and the left front wheel brake B _FL, and
And a proportional pressure reducing valve 14 _R connected to the right rear wheel brake B _RR , the _normally open solenoid valve V _OFR is provided between the other output port 13 of the master cylinder M and the right front wheel brake B _FR . The normally open solenoid valve V _ORL is interposed between the proportional pressure reducing valve 14 connected to the output port 13 and the left rear wheel brake B _RL.
It is installed between _L and. Check valves 17 _{FL to} 17 _{RL
Are the} normally open solenoid valves V _{OFL to} V so that only the flow of hydraulic fluid from the corresponding wheel brakes B _{FL to} B _RL is allowed.
Connected in parallel to the _ORL .

The normally closed solenoid valve V _CFL is the left front wheel brake B _FL.
And the reservoir 19 ₁ , the normally closed solenoid valve V _CRR is between the proportional pressure reducing valve 14 _R and the reservoir 19 ₁ , the normally closed solenoid valve V _{CF R} is between the right front wheel brake B _FR and the reservoir 19 ₂ , and is also normally closed. The closed solenoid valve V _CRL is provided between the proportional pressure reducing valve 14 _L and the reservoir 19 ₂ .

Such anti-lock brake control device
According to No. 15, there is a possibility that each wheel will not lock.
When normally braking, each normally open solenoid valve V_OFL~ V_ORLDisappears
The valve is open in the magnetic state, and each normally closed solenoid valve V
_CFL~ V_CRLIs demagnetized and is closed. But
Output from one output port 12 of the master cylinder M
The brake fluid pressure to be applied is the normally open solenoid valve V_OFLLeft front wheel through
Brake B_FLActing on the normally open solenoid valve V_ORROh
And proportional pressure reducing valve 14_RRight rear wheel brake B via _RRMade by
And the other output port 13 of the master cylinder M
The braking fluid pressure output from the_OFRThrough
Front right wheel brake B_FRActing on the normally open solenoid valve V
_ORLAnd proportional pressure reducing valve 14_LLeft rear wheel brake B via
_RLAct on.

At the time of anti-lock control when the wheel is about to enter the locked state during braking, the normally open solenoid valve corresponding to the wheel that is about to enter the locked state among the _normally open solenoid valves V _{OFL to} V _ORL. Is excited to close the valve, and at the same time, of the normally closed solenoid valves V _{CFL to} V _CRL , the normally closed solenoid valves corresponding to the wheels are excited and opened. Then, a part of the brake fluid pressure is released to the reservoir 19 ₁ or 19 ₂ and reduced. When the brake fluid pressure is maintained, the normally open solenoid valves V _{OFL to} V _ORL are excited to close the valve, and the normally closed solenoid valves V _{CFL to} V _CRL are demagnetized to maintain the closed state. Of course, when increasing the braking fluid pressure, deenergize the normally open solenoid valves V _{OFL to} V _ORL and open them, and demagnetize the normally closed solenoid valves V _{CFL to} V _CRL to keep them closed. Good.

The motor 22 which drives the pair of return pumps 21 ₁ and 21 ₂ in common is operated during the antilock control, and the reservoirs 19 ₁ and 19 2 are operated.
_The hydraulic fluid released to ₂ is returned from the pumps 21 ₁ and 21 ₂ to the dampers 24 ₁ and 24 ₂ and the orifices 25 ₁ and 25 _2.
And is returned to the upstream side of each normally open solenoid valve V _{OFL to} V _ORL . Therefore, the depression amount of the brake pedal 11 in the master cylinder M does not increase by the amount released to the reservoirs 19 ₁ and 19 ₂ , and the return pumps 21 ₁ and
The pulsation of the hydraulic fluid sent from 21 ₂ is caused by the dampers 24 ₁ , 2
4 ₂ and the orifices 25 ₁ and 25 ₂ dampen, and the pulsation is not transmitted to the brake pedal 11.

An EC for controlling demagnetization / excitation of each normally open solenoid valve V _{OFL to} V _ORL and each normally closed solenoid valve V _{CFL to} V _CRL
The detection signals of the wheel speed sensors 27 _FL , 27 _RR , 27 _FR and 27 _RL that individually detect the wheel speeds of the respective wheels in order to determine whether or not the wheels are about to enter the locked state are input to U26. And the hand brake lever 2
A detection signal of a handbrake detection sensor 29 that detects whether or not 8 is operated is input, and a notification device 30 such as a lamp that is activated by the ECU 26 when in the antilock control state is connected to the ECU 26.

2 and 3, the antilock brake control device 15 is provided with a metal base 34 formed in a block shape. The base 34 has four _normally open solenoid valves V _OFL , V _ORR , V _OFR , and V _ORL are arranged in parallel, and four normally closed solenoid valves V _CFL ,
V _CRR , V _CFR and V _CRL are the _normally open solenoid valves V _OFL ~
They are arranged in parallel in the V _ORL array direction.

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 .

Referring to FIG. 4, in the normally open solenoid valve V _OFL , the base end of the bottomed cylindrical guide cylinder 35 _O is the valve housing 36 _O.
37 _O and a guide tube 35 _O
Fixed core 38 _O fixed to the base end side of the fixed core 38
_The movable core 39 is spring-biased in a direction away from _O and is housed in the guide cylinder 35 _O , and is continuously connected to the movable core 39 so that it can be seated on the valve seat 40 provided in the valve housing 37 _O. a valve body 41, a coil 43 which is wound around the bobbin 42 surrounding the guide tube 35 _O, and a yoke 44 that magnetically couples the ends of the guide tube 35 _O over a portion of the coil 43 Prepare

The valve housing 36 _O is formed by caulking a bottomed cylindrical body 45 made of magnetic metal and a valve housing main body 46 _O partially fitted in the bottomed cylindrical body 45. The outer surface shape is formed into a stepped cylindrical shape. Moreover, a valve chamber 47 is formed between the valve housing main body 46 _O and the bottomed cylindrical body 45. The guide tube 35 _O is made of a magnetic metal through a cylindrical portion 45 b integrally provided on the bottomed cylindrical body 45 via a step portion 45 a and a non-magnetic portion 48 formed in a cylindrical shape by a non-magnetic material. The bottomed cylindrical portion 49 is coaxially connected in series. Therefore, the housing 37 _O is formed by coaxially connecting the valve housing 36 _O with the base end of the guide cylinder 35 _O via the step portion 45 a.

The valve housing 36_OIs one of the base 34
Fitting recess 50 provided on the surface 34a _OAnd the step 45
a is substantially flush with one surface 34a of the base 34
Mated. This fitting recess 50_OIs the valve housing 36
_OLarge-diameter portion 50 for fitting the bottomed cylindrical body 45 of_OAAnd
Housing subject 46_OSmall diameter part 50 for fitting_OBAnd step
It has a cylindrical body with a bottom.
A large diameter portion 50 is provided on the outer surface of 45._OAA ring that elastically contacts the inner surface of the
The large-diameter portion 50 while the seal member 51 of FIG._OAof
An annular filter 52 mounted between the inner surface and the inner surface is mounted.
The valve housing main body 46_O50 on the outer surface of_OBof
An annular seal member 53 that elastically contacts the outer surface _OIs installed
It

On the other hand, the base 34 is provided with a passage 54 that opens at a position eccentric to the inner end closed portion of the fitting recess 50 _O and coaxial passages 55 and 56 that communicate with the valve chamber 47 through the filter 52. .

The valve housing main body 46 _O has its valve chamber 4
7 is a cylindrical valve seat member 58 having a tapered valve seat 40 and a valve hole 57 opening in the center of the valve seat 40.
And a throttle member 59 communicating with the valve hole 57 are fitted and fixed, and a filter 60 _O interposed between the throttle member 59 and the passage 54 is mounted. Check valve 1
7 _FL is the valve seat member 5 between the valve chamber 47 and the filter 60 _O.
8 and the throttle member 59 in parallel with each other, the valve housing main body 4
It is installed at 6 _O.

The fixed core 38 _O is fitted and fixed to the end portion of the guide cylinder 35 _{O on} the valve housing 36 _O side. Further, in the valve chamber 47, the bottomed cylindrical body 45 and the valve housing main body 46 _O
A bearing member 61 is sandwiched therebetween, and a bearing member 62 is fitted and fixed to the tip end side of the guide cylinder 35 _O, that is, the bottomed cylindrical portion 49. The movable core 39 faces the fixed core 38 _O and is accommodated in the guide cylinder 35 _O so as to be movable in the axial direction. A rod 63 _O coaxially fixed to the movable core 39 so as to penetrate the fixed core 38 _O coaxially and axially movably and slidably supported at both ends by bearing members 61 and 62 is coaxially fixed,
A rod 63 _O is provided between the fixed core 38 _O and the movable core 39.
Is contracted, and the movable core 39 is biased by the spring 64 in a direction away from the fixed core 38 _O. A hemispherical valve element 41 that can be seated on the valve seat 40 is provided at one end of the rod 63 _O in the valve chamber 47. Moreover, the movable core 39 has a through hole 6 for allowing the working fluid to flow therethrough.
5 is drilled over the entire axial length.

By the way, all the normally open solenoid valves V _{OFL to} V _ORL and all the normally closed solenoid valves V _{CF L} are housed in the housing 37 _O with the valve housing 36 _O fitted in the fitting recess 50 _O. ~ V _CRL common substrate 66 on one surface 34 of the base 34
By being fastened to a, it will be fixed to the base 34. The substrate 66 is formed of a rigid magnetic metal into a rectangular flat plate shape, and is fastened to the one surface 34a of the base 34 by a plurality of, for example, eight bolts 68. Moreover the substrate 66, the normally open electromagnetic valve V _{OF L} ~V
_ORL guide cylinder 35 _O ... and each normally closed solenoid valve V _CFL
8 guide holes 35 _{C of} V _CRL (see FIG. 5) are inserted, and each guide cylinder 35 is provided.
_{By O,} 35 through holes 67 ... in the substrate 66 are inserted respectively to the corresponding _C is secured to one surface 34a of the base 34 abuts against the step portion 45a of the housing 37 _O, housing 37 _O is the base 34 The guide tube 35 _O of the housing 37 _O is fixed and is projected from the substrate 66 in this state.

The bobbin 42 is a base plate 66 of the guide tube 35 _O.
Is formed of synthetic resin in a cylindrical shape surrounding the protruding portion from the coil 43 on the outer circumference of the bobbin 42.
Is wound.

The yoke 44 is used for all _normally open solenoid valves V _OFL.
To V _{ORL, which} are common to the bobbin 42 of each normally open solenoid valve V _{OFL to} V _{ORL on} the side opposite to the substrate 66, and the outer edge of the contact plate 44 a. A support plate portion 44b, one end of which is connected to the right angle, and a mounting plate portion 44c, which is connected to the other end of the support plate portion 44b at the right angle so as to extend on the opposite side of the contact plate portion 44a. And is formed of magnetic metal, and the mounting plate portion 44c has a pair of screw members 7
It is attached to the substrate 66 by 0, 70. Thus, with the yoke 44 attached to the board 66, the bobbins 22 ... Of the _normally open solenoid valves V _{OFL to} V _ORL are connected to the board 66 and the yoke 4.
It will be sandwiched between the contact plate portion 44a of No. 4 and the contact plate portion 44a.

Moreover, the contact plate portion 44a of the yoke 44 is
Hole 71 for inserting the tip of each guide tube 35 _O , 35 _C
Are provided, and notches 72 that are connected to the holes 71 are provided, and the notches 72 are provided with a pair of connection terminals 73 and 73 that are connected to the coil 43 and project from the bobbin 42. To be done.

The normally closed electromagnetic valve V _CFL ~V _CRL is a number of its components is intended to be identical to the normally open electromagnetic valves V _OFL ~V _ORL, normally open electromagnetic valves V _OFL ~ 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.

[0029] In FIG. 5, the normally closed electromagnetic valves V _CFL is bottomed cylindrical guide tube 35 _C of the proximal valve housing 36 _C
37 _C and a guide tube 35 _C
Fixed core 38 _C fixed to the base end side of the fixed core 38
_The movable core 39 is spring-biased in a direction away from _C and is housed in the guide cylinder 35 _C , and is continuously connected to the movable core 39 so that the valve seat 40 provided on the valve housing 37 _C can be seated. a valve body 41, a coil 43 which is wound around the bobbin 42 surrounding the guide tube 35 _C, and a yoke 44 that magnetically couples the ends of the guide tube 35 _C over a portion of the coil 43 Prepare

The valve housing 36 _C has a bottomed cylindrical body 45.
And a valve housing main body 46 _C partly fitted in the bottomed cylindrical body 45 are caulked and coupled, and the outer surface shape thereof is formed into a stepped cylindrical shape. The guide cylinder 35 _C is formed by connecting a fixed core 38 _C to a cylindrical portion 45 b provided on the bottomed cylindrical body 45 via a non-magnetic portion 48 formed in a cylindrical shape by a non-magnetic material. The housing 37 _C is formed by coaxially connecting the base end of the guide cylinder 35 _{C to} the valve housing 36 _C via the step portion 45 a.

The valve housing 36_CIs one of the base 34
Fitting recess 50 provided on the surface 34a _CAnd the step 45
a is substantially flush with one surface 34a of the base 34
Fitted, the fitting recess 50_CIs the valve housing 36_Cof
Large-diameter portion 50 into which the bottomed cylindrical body 45 is fitted_CAAnd the valve house
46_CSmall diameter part 50 for fitting_CBAnd through the step
Then, it is provided coaxially. On the outer surface of the bottomed cylindrical body 45,
Large diameter part 50_CARing-shaped seal member 5 that elastically contacts the inner surface of the
1, the bottomed cylindrical body 45 and the valve how
And the valve chamber 47 formed between the main body 46c
An annular filter 52 interposed between the passages 56 is attached,
Main valve housing 46_C50 on the outer surface of_CBExterior of
An annular sealing member 53 that elastically contacts the_CIs installed.

A valve seat member 58 having a valve seat 40 and a valve hole 57 in a valve chamber 47, and a throttle member 59 communicating with the valve hole 57 are fitted and fixed to the valve housing main body 46 _C , and are fitted together. filter is interposed between the passage 74 provided eccentrically to the closed end of the recess 50 _C and the stop member 59 60 _C
Is installed.

The movable core 39 having the through hole 65 is fixed.
Core 38_CFacing the guide tube 35 _CAxial movement possible
And the movable core 39 has one end fixed to the movable core 39.
38 _CIs movably supported in the axial direction and the other end is
A rod 63 supported by a bearing member 61 so as to be movable in the axial direction.
_CIs fixed coaxially, and the fixed core 38_CAnd movable core 3
Rod 63 between 9_CThe spring 64 surrounding the
It The movable core 39 is fixed by the spring 64._C
Is biased by a spring in a direction away from
63_CHas a hemispherical valve body 41 that can be seated on the valve seat 40.
It is provided.

Such a normally closed solenoid valve V_CFL~ V_CRLof
Housing 37_CIs the normally open solenoid valve V_OFL~ V_ORL
Housing 37_OIn the same manner as in
It is fixed to the base 34 by tightening it on one surface 34a.
Housing 37 in that state _CGuide tube 35_CIs based
It is projected from the plate 66.

The bobbin 42 surrounding the protruding portion of the guide cylinder 35 _C from the base plate 66 is a _normally open solenoid valve V _{OFL to} V _OFL.
The yoke 44 having the same shape as the yoke 44 on the _ORL side is _attached to the substrate 66. That is, all normally closed solenoid valves V
_The coil 43 is wound around the bobbin 42 by being sandwiched between the contact plate portion 44a of the yoke 44 attached to the substrate 66 and the substrate 66 in common with _{CFL to} V _CRL .

Referring also to FIG. 6, all normally open solenoid valves V _{OFL to} V _ORL and all normally closed solenoid valves V _{CFL to} V FL.
The coil 43 of the _CRL, the bobbin 42 around which the coils 43 are respectively wound, and the pair of yokes 44, 44 are assembled to the substrate 66 as constituent elements of the electrical unit 75. The substrate 66 is attached to the base 34 by being fastened to the one surface 34a of the base 34. Moreover, when the base plate 66 is fastened to the one surface 34a, the guide cylinder 3 of each of the normally open solenoid valves V _{OFL to} V _ORL .
5 _O and the guide cylinder 35 _O in each of the normally closed solenoid valves V _{CFL to} V _CRL are inserted into the bobbins 42 ... And the holes 71.

The electric component unit 75 is provided with a synthetic resin cover 120 for covering the bobbins 42 around which the coils 43 are wound and the yokes 44, 44.
Is attached to the substrate 66. This cover 120 has a cover body 121, one end of which is attached to the substrate 66 by a screw member 77 ...
It is formed in a box shape from the cover body 121 and the lid body 122 which is fastened to the cover body 121 with the screw member 123 so as to close the other end.

On the cover 120, for example, a pair of couplers 80 ₁ and 80 ₂ are provided, a cover body 121 and a lid body 1.
It is fixedly provided so as to be sandwiched between 22 and these couplers 80 ₁ and 80 ₂ are provided with a plurality of connection terminals 81, 81, respectively.

By the way, the electrical unit 75 is connected to the motor 2
2, a motor drive circuit 130 for driving the coil 2, a coil drive circuit 131 for driving each coil 43, and an ECU 26 for controlling both the drive circuits 130, 131. , 131 and E
The CU 26 is arranged on a printed circuit board 127 fixedly housed in the cover 120. That is, the cover 120
The cover 121 is provided with receiving portions 121a, 121a which extend inward, and the printed circuit board 127 is fixed onto the receiving portion 121a by a plurality of screw members 128.

A motor drive circuit for driving the motor 22.
Path 130 includes printed circuit board 127 including relay 126.
Composed on. In addition, the coil drive circuit 131
For example, they are arranged in pairs corresponding to each coil 43 ...
Multiple sets of electrical elements 124 ₁…, 124₂… And trout
Normally open, connected to one output port 12 of the cylinder M
Type solenoid valve V_OFL, V_ORRAnd normally closed solenoid valve V_CFL, V
_CRR125 compatible with₁And master cylinder
Normally open solenoid valve V connected to the other output port 13 of M
_OFR, V_ORLAnd normally closed solenoid valve V_CFR, V_CRLCorresponding to
Relay 125₂On the printed circuit board 127 with
It is composed. Thus, the pair of electrical elements 1
24₁, 124₂Are connected in series and are parallel to the coil 43.
Column-connected, which has a surge prevention function
Is. Also relay 125₁, 125₂Is an excessive current
For preventing the coil 43 from being broken due to the flow of current
Is.

The connection terminals 73 of the coils 43 are connected to the coil drive circuit 131 of the printed circuit board 127 fixed on the receiving portion 121a in this way, and the ECU 26 and the motor drive circuit 130 on the printed circuit board 127 are connected. and coil drive circuit 131, one of the couplers 80 ₁ of the connection terminals 81, 81 ... are electrically connected as a power supply input, further ECU26 is the connecting terminal 81 the one coupler 80 ₁ for the signal input ... Are electrically connected. Further, the motor drive circuit 13 on the printed circuit board 127
0 is also connected to the connection terminals 81 ... Of the other coupler 80 ₂ , and the cord connected to the motor 22 is connected to this coupler 80 ₂ .

In FIGS. 7, 8 and 9, the base body 34
Is a housing 37 for each normally open solenoid valve V _{OFL to} V _{OR L.}
With _O valve housing 36 in ... _O ... four fitting recesses 50 _O to fit each ... are provided in parallel, a housing 37 _C of the normally closed electromagnetic valves V _CFL ~V _CRL
... and four fitting recesses 50 _C to fit each ... are arranged in parallel to the each fitting recess 50 _O ... the array direction of the valve housing 36 _C ... to the, from the fitting recess 50 _O ... sequence positions Also, on the outer side, a pair of recesses 83 ₁ and 83 ₂ having a relatively large diameter and opening to the one surface 34a of the base 34 are provided, and on the outer side of the arrangement position of the fitting recesses 50 _C ...
A pair of recesses 84 ₁ and 84 ₂ having a relatively large diameter and opening on one surface 34 a of the base 34 are provided, and the recesses 83 ₁ and 8
The inner diameters of 3 ₂ ; 84 ₁ and 84 ₂ are set to be the same.

The base 34 has a pair of input ports 85 ₁ and 85 ₂ individually connected to the pair of output ports 12 and 13 (see FIG. 1) of the master cylinder M, and an input port 85 _1.
The normally open electromagnetic valves V _OFL, a passage 86 ₁ providing communication in the passage 54 of the V _ORR, an input port 85 _{and second} normally open electromagnetic valves V _OFR, is a passage 86 ₂ providing communication in the passage 54 of the V _ORL provided . Also on one side of the base 34, the wheel brakes _{B FL, B RR, B FR} , and connected thereto an output port _{87 FL, 87 RR, 87 FR} , 87 RL are provided separately for B _RL,
The output ports 87 _{FL to} 87 _RL are each normally open solenoid valve V.
_{It is communicated} individually with the passage 55 of _OFL- V _ORL . Further, the base 34 has a passage 74 for the normally closed solenoid valves V _CFL and V _CRR .
A passage 88 ₁ leading to the normally closed electromagnetic valves V _CFR, and a passageway 88 ₂ leading to V _CRL passage 74 is provided.

The damper 24 _1, 24 ₂ includes a base 34, fixedly clamped closure plate 89 ... in the recesses 83 _1, which is between the substrate 66 which is fastened to one surface 34a of the base member 34, 83 ₂
Is closed oil-tightly, and the damper chambers 90 ... Defined by the recesses 83 ₁ and 83 ₂ and the closing plates 89 are connected to the master cylinder M through the orifices 25 ₁ and 25 ₂ . It will be communicated with the output ports 12 and 13.

The reservoirs 19 ₁ and 19 ₂ have passages 88 ₁ and
The storage chambers 91 that communicate with the base 88 ₂ are formed between the bases 34 and the storage chambers 91, respectively, and the pistons 92 that are slidably and oil-tightly fitted into the recesses 84 ₁ and 84 ₂ are tightened on the one surface 34 a of the base 34. It is composed of the base plate 66 and the return springs 93, which are compressed between the mounted pistons.

Between the arrangement positions of the normally open solenoid valves V _{OFL to} V _ORL and between the normally closed solenoid valves V _{CFL to} V _CRL , the base portion 34 is located at the central portion along the arrangement direction of the electric component unit 75 side. A bottomed storage hole 94 opened on the opposite side is formed, and an output shaft 95 of the motor 22 attached to the other surface 34b of the base body 34 is coaxially inserted into the storage hole 94.
A cam member 96 having an outer surface having a circumferentially different distance from the axis of the output shaft 95 is fixed to the output shaft 95 in the housing hole 94.

The base 34 includes _normally open solenoid valves V _{OFL to} V OF.
A pair of mounting holes 97 ₁ extending in the arrangement direction of the _ORL and the normally closed electromagnetic valves V _CFL ~V _{CR L} open to an inner surface of the receiving hole 94, 97 ₂ are provided, the return pump 21
₁ , _{1 1 2} are arranged in the mounting holes 97 ₁ , 97 ₂ so as to be driven by the cam member 96.

[0048] Thus by the pump 21 _1, 21 ₂ back is fitted into the mounting holes 97 _1, 97 _2, the pump housing 98 _1, 98 ₂ fixed, by sliding the tip to the cam member 96 piston 9 to form a pump chamber 100 _1, 100 ₂ between the pump housing 98 _1, 98 ₂ with the slidably fitted in the pump housing 98 _1, 98 ₂
9 ₁ and 99 ₂ .

Also, the pump housing 98₁, 98₂And
And piston 99₁, 99₂In the reservoir 19₁, 19
₂88 communicating with₁, 88₂Inhalation path 1 that always leads to
01 ₁, 101₂Is provided and the piston 99₁，
99₂In the pump room 100 ₁, 100₂When the volume of
Open the valve to the suction passage 101₁, 101₂The pump room 100
₁, 100₂Intake valve 20 to communicate with₁, 20₂Installed
To be done.

Further, in the pump housings 98 ₁ and 98 ₂ , discharge passages 103 ₁ and 103 ₂ which communicate with the damper chambers 90 and 90 of the dampers 24 ₁ and 24 ₂ and communicate with the passages 102 ₁ and 102 ₂ provided in the base body 34. And the discharge valves 23 ₁ and 23 _{2 that} are opened when the volumes of the pump chambers 100 ₁ and 100 ₂ are reduced to communicate the discharge passages 103 ₁ and 103 ₂ with the pump chambers 100 ₁ and 100 ₂ .

Next, the operation of this embodiment will be described. In each of the normally open solenoid valves V _OFL , V _ORR , V _OFR , and V _ORL , the fixed core 38 _O to the guide cylinder 35 _O are cylindrical by exciting the coil 43. A magnetic flux reaching the fixed core 38 _O via the portion 45 b, the substrate 66, the yoke 44, the bottomed cylindrical portion 49 of the guide cylinder 35 _O , and the movable core 39 is generated, and the movable core 39 is attracted to the fixed core 38 _O side. The valve element 41 is seated on the valve seat 40 to close the valve hole 57. In each of the normally closed solenoid valves V _CFL , V _CRR , V _CFR , and V _CRL , the coil 43 is excited to move the fixed core 38 _C to the yoke 4
4, the substrate 66, through the cylindrical portion 45b and the movable core 39 of the guide cylinder 35 _C magnetic flux is generated leading to the fixed core 38 _C, the valve element 41 is a valve seat by the movable core 39 is attracted to the fixed core 38 _C side The valve hole 57 is opened apart from 40.

Such an anti-lock brake control device
15, each solenoid valve V_OFL, V _ORR, V_OFR, V
_ORL, V_CFL, V_CRR, V_CFR, V_CRLAt Hauge
37_O…, 37_C... is the fixed core 38_O…, 38_C
... is fixed and the movable core 39 is housed respectively.
Fitting recess 50 of the base body 34 in the opened state_O…, 50_CTo ...
Mated. Further, the bobbin 42 ..., The bobbin 42 ...
Coil 43, pair of yokes 44, 44, motor
Motor drive circuit 130 for driving 22 and each coil
Coil drive circuit 131 for driving 43 ...
ECU 2 for controlling both drive circuits 130 and 131
The electrical equipment unit 75 formed by unitizing 6 is the base 3
4 is attached to one surface 34a of each housing 37_O
…, 37_CGuide tube 35 of_O…, 35_C… Is Denso Uni
Each bobbin 42 ... Therefore
Each housing 3 containing an actuating element that operates mechanically
7_O…, 37_CThe above-mentioned operation with the ...
Perform element performance check and sealability check.
And an electrical unit 75 including electrical elements,
Each housing 37_O…, 37_CSexually separated from ...
Since it is possible to check the performance,
Efficiency improves and quality control becomes easy. Moreover,
Wiring connection when assembling the electrical unit 75 to the base 34
No work is required, and the coupler 8 provided on the cover 76
0₁, 80₂Wiring is completed simply by connecting to
Assembly workability is improved.

The board 66, which is a constituent element of the electrical unit 75, includes the housings 37 _O , 37 _C, ...
It also functions to be fixed to each housing 3
Since no special parts for fixing 7 _O ..., 37 _C ... To the base 34 are required, the number of parts can be reduced.

Moreover, all _normally open solenoid valves V _{OFL to} V _ORL
Since one yoke 44 is fastened to the substrate 66 in common with all the normally closed solenoid valves V _{CFL to} V _CRL , one yoke 44 is fastened to the substrate 66 in common. Can contribute to the reduction of In addition to it,
Normally open solenoid valve V _OFL 〜 V _ORL side and normally closed solenoid valve V _CFL 〜
By separating the yokes 44, 44 from the V _CRL side,
Normally open solenoid valves V _{OFL to} V _ORL and normally closed solenoid valves V _CFL
When the coil 43 is excited or demagnetized on the one hand to V _CRL , it is possible to prevent the malfunction of the solenoid valve due to the fact that it is transmitted to the other.

Each of the yokes 44, 44 sandwiches the bobbin 42, around which the coil 43 is wound, between the yoke 66 and the substrate 66, and the substrate 66 becomes the step portion 45a of each of the housings 37 _O , 37 _C. It is a close contact. Thus the guide tube 35 over a portion of the coil 43 ... _O ..., 35 _C ... yoke 4 proximal and that between tip portion for magnetically coupling
It is possible to prevent rattling of the yokes 44, 44 along the axial direction while avoiding an excessive load applied to the yokes 4, 44, and to stabilize the magnetic characteristics.

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.

[0057]

As described above, according to the present invention, the housings of the normally open solenoid valves and the normally closed solenoid valves are fitted to the base body with the guide cylinder protruding from one surface of the base body. A substrate that is fastened to the one surface and holds each housing between the substrate and the base body, a bobbin that is assembled to the substrate such that a protruding portion of the guide cylinder from the substrate can be inserted, and a coil that is wound around the bobbin. , A yoke assembled to the substrate, a cover that covers the bobbin, the coil and the yoke and is attached to the substrate, and a motor drive circuit and each coil that can be electrically connected to the motor through a coupler provided on the cover. The printed circuit board, which has an electrically connected coil driving circuit and is housed and arranged in the cover, is unitized as an electric component unit, so that each housing having mechanically operated actuating elements is housed. Ring a can be performed performance check and sealing check of the actuating element in a state assembled to the substrate, also the electrical unit containing electrical components,
The performance check can be performed in a state where it is separated from each housing, which improves the efficiency of the performance check and facilitates quality control. Furthermore, it is provided on the cover of the electrical unit when it is assembled to the base of the electrical unit. The wiring connection work can be completed only by performing the wiring connection work to the coupler, and the workability can be improved by simplifying the wiring connection work.

[Brief description of drawings]

FIG. 1 is a hydraulic circuit diagram of a vehicle anti-lock brake device.

2 is a vertical cross-sectional side view of the anti-lock brake control device, which is a cross-sectional view taken along line 2-2 of FIG.

FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.

FIG. 4 is an enlarged vertical sectional view of a normally open solenoid valve.

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

FIG. 6 is a vertical sectional side view of the anti-lock brake control device before assembly.

7 is a cross-sectional view of the base body taken along line 7-7 of FIG.

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

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

[Explanation of symbols]

15 ... Anti-lock brake controller 21 ₁ , 21 ₂ ... Return pump 22 ... Motor 34 ... Base 34a ... One surface 35 _C , 35 _O ... Guide tube 36 _C , 36 _O ..Valve housing 37 _C , 37 _O ... Housing 38 _C , 38 _O ... Fixed core 39 ... Movable core 40 ... Valve seat 41 ... Valve body 42 ... Bobbin 43 ... Coil 44 ... Yoke 48 ... Non-magnetic part 66 ... Board 75 ... Electrical equipment unit 80 ₂ ... Coupler 120 ... Cover 127 ... Printed board 130 ... Motor drive circuit 131. ..Coil drive circuits V _CFL , V _CFR , V _CRL , V _CRR ... Normally closed solenoid valves V _OFL , V _OFR , V _ORL , V _ORR ... Normally open solenoid valves

Claims (1)

[Claims] 1. A guy having a non-magnetic part (48) in an intermediate part.
Do cylinder (35_O, 35 _C) Has a valve housing (3
6_O, 36_C) And a housing (37_O，
37_C) And a guide tube (35_O, 35_C) Axial direction
A fixed core (38_O, 38_C)
And the fixed core (38_O, 38_C) Away from
The guide tube (35_O, 35_C)
Movable core (39) and the valve housing (36_O, 3
6_CIt is possible to sit on the valve seat (40) provided in
A valve body (41) connected to the movable core (39) and a guide
Tube (35_O, 35_C) Wrapped around a bobbin (42)
Coil (43) and at least the coil (43)
Also cover a part of the guide tube (35_O, 35_C) Both ends
And a yoke (44) for magnetically coupling the parts, respectively.
Multiple normally open solenoid valves (V_OFL, V_OFR, V_ORL, V
_ORR) And a normally closed solenoid valve (V_CFL, V_CFR, V_{CR L}，
V_CRR) And the return pump (21₁, 21₂) And the return
Pump (21₁, 21₂) Connected to a motor (22)
Are arranged in common on the base body (34), and the motor (22)
A motor drive circuit (130) is electrically connected to each
A coil drive circuit (130) is electrically connected to the coil (43).
In the anti-lock brake control device connected to
Each normally open solenoid valve (V_OFL, V_OFR, V_ORL, V_ORR) Oh
And each normally closed solenoid valve (V_CFL, V_CFR, V_CRL，
V_CRR) Housing (37_O, 37 _C) Is the guide tube
(35_O, 35_C) Is one surface (34a) of the substrate (34)
Of the base body (34) by fitting the base body (34)
Each housing (3) is fastened to the one surface (34a).
7_O, 37_C) Sandwiching the substrate) with the substrate (34)
(66) and the guide tube (35_O, 35_C) Board
Substrate (66) with projecting portion from (66) insertable
Bobbin (42) assembled to the bobbin (42)
The coil (43) to be wound and the substrate (66) are assembled.
Yoke (44), bobbin (42), coil (4)
3) and yoke (44) are covered and it attaches to a board | substrate (66).
And a cover (120) that can be worn
Kea coupler (80₂) To the motor (22)
And a motor drive circuit (130) that can be electrically connected to
Coil drive circuit electrically connected to each coil (43)
Located in the cover (120) with a passage (131)
The printed circuit board (127) is connected to the electrical unit (7
5) Antilo characterized by being unitized as
Brake control device.