JP7064288B2 - Vehicle brake fluid pressure control device - Google Patents

Description

The present invention relates to a configuration of a control device that controls anti-lock braking of a vehicle.

As a brake fluid pressure control device, for example, there is a technique such as Japanese Patent No. 5082780 (hereinafter referred to as Patent Document 1). In the brake fluid pressure control device disclosed in Patent Document 1, pin-shaped terminals project upward from the housing.

Since the pin terminal protrudes upward, the tip of the pin terminal bends when an article is brought into contact with it. If the tip bends, the repair work to correct this bend will be added, and the manufacturing cost will increase.

While it is required to reduce the manufacturing cost, a structure that reduces the possibility that the pin terminal is bent is desired.

Japanese Patent No. 5082780

An object of the present invention is to provide a structure in a vehicle brake control device in which the terminals are difficult to bend even when the terminals protrude from the peripheral wall portion of the housing.

The invention according to claim 1 is a substrate on which a brake liquid passage is formed, an electromagnetic valve that opens and closes the brake liquid passage, an electromagnetic coil that drives the electromagnetic valve, and a control that controls the electromagnetic valve and the electromagnetic coil. In a vehicle brake hydraulic pressure control device having a substrate, the solenoid valve, the electromagnetic coil, and a housing for accommodating the control substrate.
The housing covers a peripheral wall portion having openings formed on the front side and the back side, a substrate accommodating portion formed by the peripheral wall portion for accommodating the control board, a connector portion, and a connector portion attached to the housing to cover the control board. With a cover,
The control board is fixed to a pin-shaped terminal and
The peripheral wall portion is formed with a mounting portion for mounting the cover.
The terminal and the control board protrude from the mounting portion and
A protrusion is formed on the mounting portion so as to project to either the front side or the back side of the opening .
The protruding portion is a fixing portion for fixing the cover.
The fixing portion is characterized in that it protrudes from the terminal .

The invention according to claim 2 is characterized in that the fixing portion has an engaging hole on which a protrusion provided on the cover is hooked.

According to claim 1, the pin-shaped terminal can be protected by a protruding portion (fixed portion) formed in the mounting portion. That is, it is possible to reduce the possibility of bending the pin-shaped terminal during assembly without enlarging the housing or reducing the board mounting area.

In addition, claim 1 eliminates the need to provide a protruding portion that protects the pin-shaped terminals, in addition to the fixing portion that fixes the cover.
It is preferable that the fixing portion of claim 2 has an engaging hole on which the protrusion of the cover is hooked.

It is a basic block diagram of the brake fluid pressure control device for a vehicle corresponding to 2 systems which concerns on this invention. It is sectional drawing of the brake fluid pressure control device for a vehicle corresponding to 2 systems. It is an enlarged view of the main part of a housing and a cover. It is a side view of the housing with the cover removed.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings shall be viewed in the direction of the reference numerals.

As shown in FIG. 1, the vehicle brake hydraulic pressure control device 10 corresponding to two systems has a first master cylinder 12 that pressurizes the hydraulic fluid and generates hydraulic pressure in response to the operation of the brake lever 11, and a front wheel brake caliper 14. The first inlet, which is an assembly component and a normally open electromagnetic valve, provided between the first reservoir 13 that temporarily stores the hydraulic fluid released from the side, the first master cylinder 12, and the front wheel brake caliper 14. The control valve 15, the first outlet control valve 16 which is an assembly part and a normally closed electromagnetic valve, and the assembly part which sucks the hydraulic fluid stored in the first reservoir 13 and returns it to the first master cylinder 12 side. A first pump 17, a second master cylinder 22 that pressurizes the hydraulic fluid in response to the operation of the brake pedal 21 to generate hydraulic pressure, and a hydraulic fluid that has escaped from the rear wheel brake caliper 24 side are temporarily stored. The second reservoir 23, the second inlet control valve 25, which is an assembly component and a normally open electromagnetic valve provided between the second master cylinder 22 and the rear wheel brake caliper 24, and the assembly component, which is a normally closed type. The second outlet control valve 26, which is an electromagnetic valve, the second pump 27, which is an assembly component that sucks the hydraulic fluid stored in the second reservoir 23 and returns it to the second master cylinder 22 side, and the first and second pumps. A motor 29 that drives the pumps 17 and 27, and a control device 30 that controls the drive of the motor 29 and controls the opening and closing of the first and second inlet control valves 15 and 25 and the first and second outlet control valves 16 and 26. , The brake fluid passages A1, B1, C1, D1, E1 of the first system provided on the substrate 40 and flowing the brake fluid, and A2, B2, C2, D2, E2 of the second system are provided.

Here, the brake fluid passage A1 is a fluid passage from the inlet port 12P to the first inlet control valve 15, and the brake fluid passage B1 is a fluid passage from the first inlet control valve 15 to the outlet port 14P. Further, the brake fluid passage C1 is a fluid passage from the brake fluid passage B1 to the first reservoir 13, and the brake fluid passage D1 is a fluid passage from the first reservoir 13 to the first pump 17. Further, the brake fluid passage E1 is a fluid passage from the first pump 17 to the brake fluid passage A1. Since the explanations of the brake fluid passages A2, B2, C2, D2, and E2 are duplicated, the description thereof will be omitted.

A suction valve 31 is provided on the suction side of the first and second pumps 17 and 27, and a discharge valve 32 is provided on the discharge side, respectively.
Further, the substrate 40 has an inlet port 12P to which a liquid passage (brake pipe) extending from the first master cylinder 12 is connected, and an inlet port 22P to which a liquid passage (brake pipe) extending from the second master cylinder 22 is connected. It is provided with an outlet port 14P to which a liquid passage (brake pipe) extending to the front wheel brake caliper 14 is connected, and an outlet port 24P to which a liquid passage (brake pipe) extending to the rear wheel brake caliper 24 is connected.

Next, the operation of the vehicle brake fluid pressure control device 10 will be described. Since the operation of the first system from the brake lever 11 to the front wheel brake caliper 14 and the second system from the brake pedal 21 to the rear wheel brake caliper 24 are the same, only the first system will be described.

ABS non-operating state: When there is no concern that the front wheels will lock, the control device 30 stops the first pump 17, opens the first inlet control valve 15, and closes the first outlet control valve 16. When the brake lever 11 is operated to the braking side in this state, the hydraulic pressure is increased in the first master cylinder 12, and this hydraulic pressure is transmitted to the front wheel brake caliper 14 via the first inlet control valve 15.

ABS (decompression mode): When the front wheels are about to lock, the control device 30 closes the first inlet control valve 15 and opens the first outlet control valve 16. The hydraulic pressure in the front wheel brake caliper 14 is released to the first reservoir 13 via the first outlet control valve 16. This reduces the brake fluid pressure of the front wheel brake caliper 14.

ABS (retained mode): The control device 30 closes both the first inlet control valve 15 and the first outlet control valve 16. As a result, the brake fluid pressure of the front wheel brake caliper 14 is kept constant.

ABS (pressure boosting mode): When the brake fluid pressure is boosted, the control device 30 opens the first inlet control valve 15 and closes the first outlet control valve 16. As a result, the hydraulic pressure generated in the master cylinder 12 is transmitted to the front wheel brake caliper 14. This increases the brake fluid pressure of the front wheel brake caliper 14.

As shown in FIG. 2, the housing 36 includes a peripheral wall portion 84 having openings formed on the front side and the back side, a substrate accommodating portion 85 accommodating a control board 99, a connector portion 37 (FIG. 4), and a housing 36. It includes a cover 38 that is attached and covers the control board 99. A solenoid valve 15 as a first inlet control valve and a solenoid valve 16 as a first outlet control valve are attached to the substrate 40, a first reservoir 13 is built in, brake fluid passages A1, C1 and the like are provided, and a brake is provided. A first pump 17 is provided between the liquid passage A1 and the brake fluid passage C1.

About half of the solenoid valve 15 and the solenoid valve 16 project from the substrate 40 in the axial length, and these projecting portions are housed in the housing 36. The solenoid valve 15 and the solenoid valve 16 each include a driving solenoid coil 33.
A control board 99 is arranged in the housing 36 and in the vicinity of the solenoid valve 15 and the solenoid valve 16, and the control board 99 and the solenoid coil 33 are electrically connected by terminals 91.
A cover 38 is attached to the housing 36. Further, the motor 29 is attached to the substrate 40 with screws 29a.

As shown in FIG. 3, the projecting portion 36e is formed so as to project from the housing 36 toward the cover 38 side. The protruding portion 36e is provided in the mounting portion 36a in which the groove 36c for accommodating the insertion convex portion 38a of the cover 38 is formed. The protruding portion 36e fixes the cover 38 (to be exact, temporarily fixed at the time of adhesive fixing). Hereinafter, the protruding portion 36e is referred to as a fixed portion 36e.
The fixing portion 36e is a portal member extending from the mounting portion 36a toward the cover 38 side. Since the protrusion 38e provided on the cover 38 is hooked on the square hole (engagement hole) 36f of the fixing portion 36e, it is fixed (temporarily fixed).

As shown in FIG. 4, with the control board 99 attached to the terminal 98, the fixed portion 36e protrudes toward the cover side (upper side of the drawing) of the control board 99 so as to be higher than the electrical components such as the terminal 98. I let you.

Since the fixed portion 36e protrudes from the control board 99 toward the cover side, the article from the outside hits the fixed portion 36e and does not hit the pin-shaped terminal 98. Therefore, it is possible to reduce the possibility that the pin-shaped terminal 98 is bent before the cover is attached.

Although the drawings are omitted, the present invention can also be applied to the vehicle brake fluid pressure control device 10 corresponding to one system.

Although the present invention is suitable for motorcycles, it can also be applied to tricycles and may be applied to general vehicles.

The present invention is suitable for motorcycles.

10 ... Vehicle brake fluid pressure control device, 15, 16, 25, 26 ... Solenoid valve, 33 ... Electromagnetic coil, 36 ... Housing, 36a ... Housing side mounting portion that abuts on the substrate, 36c ... Groove, 36e ... Protruding portion (Fixed part, portal member), 36f ... Square hole (engagement hole), 37 ... Connector part, 38 ... Cover, 38a ... Insertion convex part, 38e ... Projection, 40 ... Base, 84 ... Peripheral wall part, 85 ... Board Accommodating part, 98 ... pin-shaped terminal, 99 ... control board, A1, B1, C1, D1, E1, A2, B2, C2, D2, E2 ... brake fluid path.

Claims (2)

The substrate on which the brake liquid passage is formed, the solenoid valve that opens and closes the brake fluid passage, the solenoid coil that drives the solenoid valve, the solenoid valve and the control board that controls the solenoid coil, the solenoid valve, and the said. In a vehicle brake hydraulic pressure control device having a solenoid coil and a housing for accommodating the control board.
The housing covers a peripheral wall portion having openings formed on the front side and the back side, a substrate accommodating portion formed by the peripheral wall portion for accommodating the control board, a connector portion, and a connector portion attached to the housing to cover the control board. With a cover,
The control board is fixed to a pin-shaped terminal and
The peripheral wall portion is formed with a mounting portion for mounting the cover.
The terminal and the control board protrude from the mounting portion and
A protrusion is formed on the mounting portion so as to project to either the front side or the back side of the opening .
The protruding portion is a fixing portion for fixing the cover.
A vehicle brake fluid pressure control device, characterized in that the fixed portion protrudes from the terminal . The vehicle brake fluid pressure control device according to claim 1, wherein the fixing portion has an engaging hole on which a protrusion provided on the cover is hooked.

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