JPH06247270A - Anti-lock brake system hydraulic unit with electronic structured in a single piece - Google Patents

Abstract

PURPOSE:To make large the indoor space and simplify the harness works by furnishing a second seal member to seal the contacting part of the first contact piece with a second contact piece, which is generated by the second seal member tightly contacting the inside surface of a socket housing and the peripheral surface of the connection part for a solenoid valve. CONSTITUTION:An electronic unit 6 is coupled with a hydraulic unit 5, which are fastened together in a single piece by the use of mounting brackets 62A, 62B. Associate with this coupling, corresponding connecting pins in connection with respective coils of solenoid valves 5a come in contact with terminals which are connected with the terminal part of the electronic unit 6. At the same time, the second seal member comes in tight attachment with the peripheral surface of the corresponding solenoid tab and the inside surface of the body part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antilock brake system for an automobile, in which the brake fluid pressure is adjusted to prevent the wheels from being locked during sudden braking or braking on a slippery road surface. The present invention relates to a hydraulic unit in which an electronic unit including an electronic control unit is integrated in an antilock brake system.

[0002]

2. Description of the Related Art As one of systems for improving the safety of an automobile, there is an anti-lock brake system that prevents wheels from locking during sudden braking or braking on a slippery road surface. Recently, as the performance of automobiles has increased, many automobiles employing the above-described anti-lock brake system have been produced.

The conventional anti-lock braking system is
The rotation detectors 1 to 4 as shown in FIGS. 8 and 9, a hydraulic unit 105, an electronic control unit 106, and a relay box 107 are provided.

The rotation detectors 1 to 4 detect the rotation states of the wheels A to D, and are provided for the wheels A to D, respectively. The rotation detection devices 1 to 4 are sensors 1a to 4a.
And sensor rotors 1b to 4b. The sensors 1a to 4a are composed of, for example, permanent magnets, coils, and pole pieces, and are attached to the steering knuckle on the front wheels and to the hub spindle on the rear wheels. On the other hand, the sensor rotor 1b
Reference numerals 4b to 4b are provided on the outer periphery thereof with irregularities (not shown) arranged at equal intervals in the circumferential direction, and are attached to the drive shaft at the front wheels and to the rear hub at the rear wheels. Therefore, the sensor rotors 1b to 4b rotate integrally with the wheels A to D. The sensors 1a to 4a are sensor rotors 1b to 4b.
Wheels A to D
Detects the rotation state of. The rotation detection devices 1 to 4 use detection signals from these sensors 1a to 4a, which will be described later, in an electronic control unit 106.
Send to.

The hydraulic unit 105 is equipped with four solenoid valves 105a to 105d corresponding to each wheel. This hydraulic unit 105 includes an electronic control unit 1 described later.
By controlling the opening and closing of the solenoid valves 105a to 105d based on the control signal sent from 06,
The brake fluid pressure for the wheel cylinders of the wheels A to D is controlled.

The electronic control unit 106 includes the rotation detecting device 1
The input of the detection signals sent from 4 to 4 is to monitor whether or not there is a wheel in the locking direction when the brakes are applied based on the detection signals, and is configured on the printed circuit board. ing. This electronic control unit 106
When there is a wheel determined to be in the locking direction, the hydraulic unit 105 is controlled to reduce the brake fluid pressure to the wheel cylinder of the corresponding wheel, and it is determined that the risk of locking the wheel is avoided. In this case, increase the brake fluid pressure again.

The relay box 107 has built-in relays 107a and 107b for amplifying a control signal given from the electronic control section 106 and giving it to the hydraulic unit 105.

In FIG. 9, 108 is the battery of this automobile which is also the power source of the antilock brake system, 109 is an ignition switch, 110 is a stop lamp switch arranged near the brake pedal,
111 is a stop lamp that forms part of the rear lamp,
Reference numeral 112 is a warning lamp for notifying the abnormality of the antilock brake system, and 113 is a diode provided for turning on the warning lamp 112.

In the conventional anti-lock brake system, as shown in FIG. 8, the hydraulic unit 105 and the relay box 107 are arranged in the engine room, while the electronic control unit 106 is arranged in the room below the seat or in the front panel. It is generally provided. Further, the rotation detection devices 1 to 4 are provided on the wheel portion as described above.

[0010]

Recently, the number of types of electronic control units for automobiles has increased along with the improvement in performance thereof, but it is often required to secure a large indoor space. However, when the electronic control unit 106 is arranged in the room as in the conventional case, the number of long wire harnesses that electrically connect the electronic control unit 106 and the engine room increases, and a large indoor space is secured. There was a problem that it would be difficult to meet the demand.

Further, like the conventional antilock brake system, when the hydraulic unit 105 and the electronic control unit 106 are separately arranged in the engine room and the vehicle compartment, the above-mentioned electric connection is made between them. It is necessary to provide such a wire harness as described above, which has been a problem in improving the productivity of automobiles. In particular, automobiles these days are equipped with many systems that were not available in the past, in addition to the anti-lock brake system, and as a result, the number of wires has increased, making harness work extremely complicated. It is desired to reduce the number of wirings as much as possible for simplification.

The present invention has been made in view of the above circumstances, and the electronic control unit can be integrated with the hydraulic unit in the engine room, thereby increasing the size of the interior space of the automobile and performing the harness work. It is an object of the present invention to provide an electronic unit-integrated hydraulic unit in an antilock brake system that can contribute to simplification of the above.

Another object of the present invention is to easily connect the coil of the solenoid valve of the hydraulic unit to the electronic control section and / or the electric element of the electronic unit, and to secure the inside of this connection section and the electronic unit. An object of the present invention is to provide a hydraulic unit integrated with an electronic unit in an anti-lock brake system capable of sealing.

[0014]

In order to achieve the above-mentioned object, an electronic unit-integrated hydraulic unit in an anti-lock brake system according to a first aspect of the present invention includes a rotation detecting device for detecting a rotation state of each wheel of an automobile and a brake. Based on a detection signal of the rotation detection device, which has a piping port for the liquid, and which controls the opening and closing of the solenoid valve by an electric control signal to control the brake fluid pressure to the wheel cylinder of each wheel. In an antilock brake system including an electronic control unit that generates the control signal that controls the brake fluid pressure so that the wheels do not lock, a tip end portion is provided integrally with a solenoid valve of the hydraulic unit. It projects from the hydraulic unit and contacts the coil of the solenoid valve. A connecting portion for a solenoid valve that is supported by being exposed to the contact portion of the first contact piece that is,
A printed circuit board having the electronic control section and a connection section for connecting another electric element electrically connected to the electronic control section; and a built-in printed circuit board, and the solenoid valve connection section. And an electronic unit housing having a connection part insertion port into which the connector can be inserted, and a tube which is disposed inside the electronic unit and surrounds the solenoid valve connection part inserted into the electronic unit housing through the connection part insertion port. -Shaped socket housing and a first contact piece held by the socket housing, electrically connected to the connection portion of the printed circuit board, and contacting the contact portion of the first contact piece inserted into the electronic housing. Two contact pieces, the inner peripheral surface of the socket housing and the inner wall surface of the peripheral portion of the insertion opening of the electronic unit housing. The first contact member for sealing the inside of the electronic unit housing with the inner peripheral surface of the socket housing and the outer peripheral surface of the solenoid valve connecting portion, thereby bringing the first contact piece and the second contact member into contact with each other. And a second seal member for sealing the contact portion of the piece.

[0015]

In the hydraulic unit integrated with the electronic unit in the antilock brake system according to the first aspect of the present invention, the connecting portion for the solenoid valve integrally provided in the hydraulic unit is inserted into the housing of the electronic unit having the electronic circuit board built therein. By inserting it through the mouth, the first contact piece supported by the solenoid valve connection portion comes into contact with the second contact piece held in the socket housing, so that the coil of the solenoid valve is connected to the printed circuit board. It is electrically connected to the connection part. Further, the first seal member prevents water droplets or the like from entering the electronic unit from between the electronic unit housing and the socket housing. Further, the second sealing member is brought into close contact with both the inner peripheral surface of the socket housing and the outer peripheral surface of the solenoid valve connecting portion as the first contact piece and the second contact piece are brought into contact with each other. By
Water droplets and the like are prevented from entering the contact portion between the first contact piece and the second contact piece.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The antilock brake system shown in FIG. 7 is similar in electrical structure to the conventional antilock brake system shown in FIG. 9 and operates in exactly the same manner. That is, this anti-lock brake system includes rotation detection devices 1 to 4, a hydraulic unit 5, an electronic unit 6 including an electronic control unit 61A, a motor relay 7, a fail safe relay 8 and a diode 9.

In FIG. 7, reference numeral 21 is an automobile battery, 22 is an ignition switch, 23 is a stop lamp switch arranged near the brake pedal, and 2 is a stop lamp switch.
4 is a stop lamp that forms part of the rear lamp, 25
Is a warning lamp to inform you of the abnormality of this anti-lock brake system. The power supply unit 10 including the battery 21 to the warning lamp 25 and the electronic unit 6 are connected by a power supply line 12. In addition, the ground line 1 connected to the power line 12 and the ground terminal (not shown)
3 forms one wire harness with the signal supply line 11 connected to the rotation detection devices 1 to 4 described later, and the connector 15 is connected to the tip of this wire harness.

The rotation detecting devices 1 to 4 are the same as the rotation detecting devices 1 to 4 of the conventional antilock brake system shown in FIGS. 8 and 9. That is, this rotation detection device 1
Reference numerals 4 to 4 are composed of sensors 1a to 4a and sensor rotors 1b to 4b, which detect the rotation state of each wheel of the automobile and send detection signals to the electronic control unit 61A described later via the signal supply line 11. .

1 and 2 show an electronic unit-integrated hydraulic unit according to the present invention in which the hydraulic unit 5, the electronic unit 6, the motor relay 7 and the fail-safe relay 8 of the antilock brake system shown in FIG. 7 are integrated. Shows. This electronic unit-integrated hydraulic unit is provided in the engine room of an automobile.

The hydraulic unit 5 controls the brake fluid pressure for the wheel cylinders by controlling the opening / closing of the four solenoid valves 5a-5d. The opening / closing of the solenoid valves 5a-5d is controlled by the electronic control unit 61.
This is done based on the control signal sent from A. The means for supplying power to the coils of these solenoid valves 5a-5d will be described later. The hydraulic unit 5 further drives a pump (not shown) (not shown) to circulate the brake fluid to a master cylinder (not shown).
e. Power is supplied to the motor 5e by connecting a lead wire of the motor 5e to a terminal portion 6Bb of the electronic unit 6 described later.

As shown in FIG. 6, the housing 51 of the hydraulic unit 5 comprises a housing body 52 and a bottom plate 53.

The housing main body 52 incorporates the pump, a flow control valve that operates in accordance with opening and closing of the solenoid valves 5a to 5d, a brake fluid flow path (both not shown), and the like. In the housing body 52,
Brake fluid piping ports 5A to 5D for wheel cylinders (not shown) are provided on the front surface, and brake fluid piping ports 5E, 5F for brake master cylinders (not shown) are provided on the side surface. Further, on the rear surface of the housing body 52, the motor 5e connected to the plunger pump of the hydraulic unit 5 is provided.

The bottom plate 53 supports the solenoid valves 5a to 5d between itself and the housing body 52.
Solenoid tabs 5ab to 5db penetrating the bottom plate 53 are fixed to the solenoid valves 5a to 5d. Next, these solenoid tabs 5ab to 5db will be described. Since all the solenoid tabs 5ab to 5db have the same configuration, only the solenoid tab 5ab shown in FIG. 3 will be described here.

The solenoid tab 5ab is integrally formed with a resin coating portion for molding the solenoid valve 5a, and the coil 5ac of the solenoid valve 5a is formed.
The connection pin 5aa electrically connected to is inserted. As is clear from this, the solenoid tab 5
The ab is provided integrally with the hydraulic unit 5. The solenoid tab 5ab penetrates the bottom plate 53 together with the connection pin 5aa in the vicinity of the end of the hydraulic unit 5, and projects downward. Solenoid tab 5ab
Has a tubular shape, and the tip of the connecting pin 5aa projects into the hollow of the tubular portion.

As already mentioned, another solenoid tab 5bb
.About.5db and connection pins 5ba to 5da are similarly provided for the solenoid valves 5b to 5d, respectively.

As shown in FIG. 1, the electronic unit 6 includes a printed circuit board 61 and a housing 62. The total length of the electronic unit 6 is set to be equal to or less than the total length of the hydraulic unit 5.

The printed circuit board 61 has an electronic control unit 6 in the antilock brake system shown in FIG.
1A, terminal portions 61Ba to 61Be, and a wiring portion 61C are formed.

The electronic control section 61A is constructed and operates in the same manner as the electronic control section 106 in the conventional antilock brake system.
That is, the electronic control unit 61A calculates the wheel speed and the wheel acceleration / deceleration based on the detection signals sent from the rotation detection devices 1 to 4, estimates the vehicle body speed, and brakes based on these. When it is determined that there is a wheel in the locking direction, the solenoid valves 5a to 5d of the hydraulic unit 5 are controlled to reduce the brake fluid pressure for the wheel cylinder of the corresponding wheel. Further, when the electronic control unit 61A determines that there is no risk of locking of the wheel for which the brake fluid pressure has been reduced as described above, the solenoid valve 5a ...
Controls opening and closing of 5d.

The terminal portions 61Ba to 61Be are arranged on the printed circuit board 61, for example, as shown in FIG.

The terminal portion 61Ba has the signal supply line 11,
It is a terminal portion for connecting the power supply line 12 and the ground line 13 to the electronic unit 6. This terminal portion 61B
Each terminal constituting a is composed of a pin provided upright on the printed circuit board 61, and corresponds to a connector receiver 62c of a housing 62 described later.

The terminal portion 61Bb is a terminal for connecting the power supply lead wire 17 of the motor 5e of the hydraulic unit 5 to the electronic unit 6. This terminal portion 61Bb
Are formed in a printed wiring portion on the printed circuit board 61.

The terminal portion 61Bc is a terminal for connecting the solenoid valves 5a to 5d of the hydraulic unit 5 to the electronic unit 6. The terminal portion 61Bc is also formed in the printed wiring portion on the printed circuit board 61. Further, the solenoid valves 5a to 5d of the hydraulic unit 5 and the terminals of the terminal portion 61Bc corresponding to the solenoid valves 5a to 5d are configured to be equidistant from each other.
Each terminal of the terminal portion 61Bc corresponding to 5d corresponds to each of four solenoid sockets 14 described later.

The terminal portion 61Bd is a terminal for connecting a motor relay 7 described later to the electronic unit 6.
Each terminal constituting the terminal portion 61Bd is a pin provided upright on the printed circuit board 61 and corresponds to a socket 62a described later.

The terminal portion 61Be is a terminal for connecting a fail safe relay 8 described later to the electronic unit 6. Each terminal constituting the terminal portion 61Be is composed of a pin erected on the printed circuit board 61, and corresponds to a socket 62b of a housing 62 described later.

The wiring section 61C includes the electronic control section 61A,
Each of the terminal portions 61Ba to 61Be is connected.

The housing 62 is made of aluminum and is connected to the housing 51 of the hydraulic unit 5 via mounting brackets 62A and 62B. The inside of the housing 62 is hermetically sealed, and the printed circuit board 61 is accommodated below the housing 62 with its surface horizontal.

Further, on the rear surface of the housing 62, resin sockets 62a and 62b for mounting a motor relay 7 and a fail-safe relay 8 which will be described later are embedded. The terminal portion 61Bd is attached to the socket 62a.
Corresponds to the socket 62b, and the terminal portion 6 is attached to the socket 62b.
1Be corresponds.

Further, on the side surface of the housing 62,
Connector connector 6 made of resin to which the connector 15 is coupled
2c is embedded, and the terminal portion 61Ba corresponds to the connector receiver 62c.

On the upper wall of the housing 62, connection pin insertion openings 62d into which the solenoid tabs 5ab to 5db are fitted are formed at positions corresponding to the solenoid tabs 5ab to 5db of the hydraulic unit 5 (FIG. 3). ). A guide 62da formed by bending the peripheral edge of the connection pin insertion opening 62d downward is provided.

The solenoid socket 14 is provided between each connection pin insertion opening 62d and the terminal portion 61Bc on the printed circuit board 61 for each solenoid valve 5a to 5d (however, in FIG. 3). Then, only the solenoid socket 14 corresponding to the solenoid valve 5a is shown). As shown in FIG. 4, the solenoid socket 1
4 is a resin socket housing 141, a connection terminal 1
42, a first seal member 143 and a second seal member 144.

The socket housing 141 is sandwiched between the upper wall surface of the housing 62 of the electronic unit 6 and the printed circuit board 61. As shown in FIG. 4, the socket housing 141 has an outer cylindrical body 141A.
And an inner cylinder body 141B, and the outer cylinder body 141A.
The inner cylindrical body 141B is connected to the inner cylindrical body 141B by an annular partition wall 141C that vertically divides a space formed therebetween.

The outer cylinder body 141A comprises a main body portion 141a and a large diameter portion 141b formed at the upper end of the main body portion 141a. The axial length of the large diameter portion 141b is set to be substantially the same as the length of the guide 62da of the connection pin insertion opening 62d.

On the other hand, the inner cylindrical body 141B has an outer diameter that fits inside the tip of the solenoid tab 5ab formed in a cylindrical shape. Further, the inner cylindrical body 141B is formed with an engaging portion 141c into which a first connecting portion 142A of a connecting terminal 142 described later is fitted and which engages with the first connecting portion 142A.

The connecting terminal 142 is formed by integrating the first connecting portion 142A and the second connecting portion 142B.

The first connecting portion 142A is a contact portion 14 formed on a metal cylindrical body fitted in the inner cylindrical body 141B.
2a, a retaining portion 142b, and an engaging portion 142c. The contact portion 142a is formed by cutting and raising a part of the body inward, and the corresponding connection pin 5aa inserted into the socket housing 141 is formed.
Make elastic contact with ~ 5da. The retaining portion 142b is formed by cutting and raising a part of the body to the outside, and the connection terminal 1 mounted in the socket housing 141.
42 is prevented from coming out of this socket housing 141. The engagement part 142c is provided in a part of the body, and the engagement part 141c is provided on the inner circumference of the inner cylindrical body 141B so as to fix the connection terminal 142 at a predetermined position in the socket housing 141. Engage with.

The first connecting portion 142B corresponds to the first connecting portion 1
42A or the first connecting portion 14
It is fixed integrally to 2A, and the lower end portion is soldered to the terminal portion 61Bc of the printed circuit board 61.

The first seal member 143 is formed in an annular shape by a rubber packing or the like, and is arranged on the inner peripheral side of the large diameter portion 141b of the outer cylindrical body 141A. The first seal member 143 has a guide 62da formed in the large diameter portion 141b and the connection pin insertion opening 62d of the electronic unit 6.
By closely adhering to and, it is possible to prevent water droplets or the like from entering the electronic unit 6 through the connection pin insertion opening 62d.

The second seal member 144 is formed in an annular shape by a rubber packing or the like, and has the partition wall 141C.
Immediately above the inner peripheral surface of the main body 141a of the outer peripheral wall 141A. The second seal member 144 has a corresponding solenoid tab 5 a inside the solenoid socket 14.
When b to 5db are inserted, this solenoid tab 5a
By closely contacting the outer peripheral surface of b to 5db and the inner peripheral surface of the main body portion 141a, a water drop is formed in the space formed by the solenoid tabs 5ab to 5db and the inner cylindrical body 141B, that is, the space in which the connection terminal 142 is arranged. Etc. will be blocked.

The motor relay 7 is provided for amplifying a control signal given from the electronic control unit 6 and turning on / off the motor 5e. As shown in FIG. 1, this motor relay 7 has a terminal 7A. This terminal 7A
Is attached to the socket 62a provided in the housing 62, the terminal portion 61
It is electrically connected to the pin terminals forming Bd.

The fail-safe relay 8 is provided to shut off signals to the solenoid valves 5a to 5d of the hydraulic unit 5 when an abnormality occurs in the antilock brake system. The fail-safe relay 8 has a terminal (not shown) similar to the terminal 7A of the motor relay 7, and this terminal is attached to the socket 62b provided in the housing 62 when the fail-safe relay 8 is mounted. And is electrically connected to the pin terminals forming the terminal portion 61Be.

The diode 9 is connected between the downstream side of the warning lamp 25 and the downstream side of the contact point of the fail safe relay 8 in order to turn on the warning lamp 25 when the connector 15 is not fitted. There is.
In the electronic unit 6, the diode 9 is
By connecting to a terminal portion (not shown) provided on the wiring portion 61C of the printed circuit board 61 by soldering or the like, the predetermined terminal of the electronic control portion 61A and the terminal portion 61Be.
Are provided between the predetermined terminals.

In the electronic unit-integrated hydraulic unit in the antilock brake system constructed as described above, first, the solenoid tabs 5ab to 5db of the solenoid valves 5a to 5d are connected to the corresponding solenoid sockets 14.
The electronic unit 6 is coupled to the hydraulic unit 5 while being inserted into the hydraulic unit 5, and the hydraulic unit 5 and the electronic unit 6 are integrally fixed by the mounting brackets 62A and 62B. As the hydraulic unit 5 and the electronic unit 6 are coupled in this way, the terminal portion 61B of the electronic unit 6 is connected.
The respective connection terminals 142 connected to c are brought into contact with the corresponding connection pins 5aa to 5da connected to the coils of the solenoid valves 5a to 5d corresponding thereto. At the same time, the second seal member 144 causes the corresponding solenoid tab 5a to
The outer peripheral surface of b to 5 db and the inner peripheral surface of the main body portion 141a are in close contact with each other.

Next, the terminal portion 61B of the electronic unit 6
b to the lead wire of the motor 5e, and the socket 62
Motor relay 7 and fail-safe relay 8 on a and 62b
Is attached, and the connector 15 is connected to the connector receiver 62c. This forms the circuit of the antilock brake system shown in FIG.

The electronic unit-integrated hydraulic unit integrated as described above is arranged at the same position as the hydraulic unit 105 in the conventional antilock brake system shown in FIG.

In the anti-lock brake system having the electronic unit-integrated hydraulic unit described above, even if the anti-lock brake system is provided, there is a straddle between the engine room and the room for connecting the hydraulic unit 5 and the electronic unit 6. There is no need to provide a wire harness to

In the hydraulic unit integrated with the electronic unit in the anti-lock brake system, the electronic unit 6 is connected to the hydraulic unit 5 while the solenoid tabs 5ab to 5ad on the hydraulic unit 5 side are connected to the solenoid socket 14 on the electronic unit 6 side. By integrating the electronic unit 6 with the solenoid valves 5a-5
Since the coil of d can be connected to the electronic control unit 61A or the motor relay 7 and the fail-safe relay 8, the work only for connecting these can be omitted.

Moreover, in the above-described electronic unit-integrated hydraulic unit, the solenoid socket 14 is provided with the first seal member 143, so that the solenoid socket 14 is provided.
The connection terminal 142 of the solenoid socket 14 is prevented by preventing water droplets and the like from entering the electronic unit 6 from the disposition part of the solenoid socket 14 and by providing the second seal member 144.
In addition, since water drops and the like are prevented from entering the contact portions with the connection pins 5aa to 5da supported by the corresponding solenoid tabs 5ab to 5ad, in the engine room where there are relatively many water drops and dust. Even when installed in the above place, it is possible to prevent the occurrence of problems due to the intrusion of the water droplets and the like.

Further, in the electronic unit-integrated hydraulic unit, by mounting the relays 7 and 8 in the sockets 62a and 62b provided in the housing 62 of the electronic unit 6, these relays 7 and 8 are connected to the electronic unit 6. The terminals 61Bd and 61Be are connected to each other. Therefore, it is not necessary to connect between the relays 7 and 8 and the hydraulic unit 5 or between the relays 7 and 8 and the electronic control unit 61A on the printed circuit board with a wire harness as in the conventional case, and also in this aspect, the harness work can be simplified. Can be planned.

Further, in the above-mentioned electronic unit-integrated hydraulic unit, the electronic unit 6 is connected to the bottom surface of the hydraulic unit 5 in which the piping ports 5A to 5F are not arranged. It does not interfere with the brake fluid piping for 5. Further, by connecting the electronic unit 6 to the bottom surface of the hydraulic unit 5, as described above, the solenoid valves 5a to 5d of the hydraulic unit 5 and the terminals of the terminal portion 61Bc corresponding to these solenoid valves 5a to 5d are connected. , All solenoid valves 5a to 5d can be equidistant.

In the above embodiment, the electronic control section 61A is used.
The wiring portion 61C and the wiring portion 61C are formed on one printed circuit board 61. However, in the electronic unit integrated hydraulic unit according to the invention, only the electronic control portion 61A is formed on the printed circuit board, and the wiring portion 61C is It may be formed by disposing a bus bar between each of a plurality of insulating plates provided at a predetermined interval. In this case, by bending the terminal of the bus bar, a connecting portion for connecting to the printed circuit board or terminals of electric elements such as the relays 7 and 8 and the connector 15 can be formed in the wiring portion 61C.

Further, in the embodiment, the electronic unit is arranged below the hydraulic unit, but it goes without saying that the present invention can be adopted even when the electronic unit is arranged in front of the hydraulic unit.

[0062]

According to the hydraulic unit integrated with the electronic unit in the anti-lock brake system of claim 1,
Even if the anti-lock brake system is installed, there is no restriction on the expansion of the indoor space, and the harness work when the anti-lock brake system is installed can be simplified and the production efficiency can be improved.

Further, the coil of the solenoid valve of the hydraulic unit and the electronic control section and / or the electronic element can be easily electrically connected, and the work efficiency is improved also in this respect.

Furthermore, the first seal member seals the space between the electronic unit housing and the socket housing, and the second seal member seals the first contact piece supported by the solenoid valve connecting portion and the socket housing. By sealing the connection space with the held second contact piece, even if the electronic unit having the electronic control unit is arranged in the engine room, intrusion of water droplets or the like into the electronic unit, It is possible to reliably prevent intrusion of water droplets or the like into the contact space between the first contact piece and the second contact piece.

[Brief description of drawings]

FIG. 1 is a side view showing an antilock brake system according to the invention.

2 is a rear view of the antilock brake system of FIG. 1. FIG.

FIG. 3 is an enlarged cross-sectional view illustrating a main part of FIG.

FIG. 4 is an enlarged sectional view of a solenoid socket.

FIG. 5 is an explanatory diagram showing an example of arrangement of terminal portions on a printed circuit board.

FIG. 6 is a perspective view of a hydraulic unit.

FIG. 7 is an electrical connection diagram of the anti-lock brake system.

FIG. 8 is an explanatory diagram showing an outline of a conventional antilock brake system.

FIG. 9 is an electrical connection diagram of a conventional antilock brake system.

[Explanation of symbols]

 1 to 4 rotation detection device 5 hydraulic unit 5A to 5F piping port 5aa to 5ad connection pin 5ab to 5db solenoid tab 6 electronic unit 61 printed circuit board 61A electronic control unit 61Ba, 61Bb, 61Bc, 61Bd terminal unit 62 (electronic unit) Housing 14 Solenoid socket 141 Socket housing 142 Connection terminal 143 First sealing member 144 Second sealing member

Claims (1)

[Claims] 1. A wheel of each wheel, comprising a rotation detecting device for detecting a rotation state of each wheel of an automobile, a pipe opening for brake fluid, and controlling opening / closing of a solenoid valve by an electric control signal. Anti-lock including a hydraulic unit for controlling brake fluid pressure for the cylinder, and an electronic control unit for forming the control signal for controlling the brake fluid pressure so as to prevent the wheels from locking based on a detection signal of the rotation detection device In the brake system, a first contact piece that is integrally provided with a solenoid valve of the hydraulic unit and has a tip portion protruding from the hydraulic unit and that has a first contact piece connected to a coil of the solenoid valve is exposed at the contact portion. A solenoid valve connecting part that supports the electronic control part and an electronic control part A printed circuit board having a connecting portion for connecting another electric element connected to the electronic circuit, and an electronic unit containing the printed circuit board and having a connecting portion insertion port into which the solenoid valve connecting portion can be inserted. A housing, a cylindrical socket housing arranged inside the electronic unit and surrounding the solenoid valve connection part inserted into the electronic unit housing through the connection part insertion port, and retained by the socket housing. A second contact piece that is electrically connected to the connection portion of the printed circuit board and that contacts the contact portion of the first contact piece inserted into the electronic housing; The electronic unit housing is provided between the peripheral surface and the inner wall surface of the peripheral portion of the insertion opening of the electronic unit housing. And a first seal member for sealing the inner peripheral surface of the socket housing and the outer peripheral surface of the solenoid valve connecting portion to seal the contact portion of the first contact piece and the second contact piece. A second seal member,
An electronic unit-integrated hydraulic unit in an antilock brake system, further comprising: