JP6873379B2 - Vehicle brake fluid pressure control device - Google Patents

Description

The present invention relates to a vehicle brake fluid pressure control device.

As a brake fluid pressure control device, for example, there is a technique such as Japanese Patent Application Laid-Open No. 2016-97895 (hereinafter referred to as Patent Document 1). In the brake fluid pressure control device disclosed in Patent Document 1, a housing for accommodating the control substrate is attached to one surface of a substantially rectangular substrate.

For example, in such a brake fluid pressure control device, the substrate and the housing are sealed with a sealing material or the like.
In order to ensure the sealing property, one surface of the substrate is about the same size as the mounting portion (contact portion) of the housing.

In recent years, it has been desired to reduce the weight of the brake fluid pressure control device, but it is difficult to reduce the weight of the substrate with the configuration as in Patent Document 1.
However, as the weight of the vehicle is required to be reduced, a brake fluid pressure control device for the vehicle that can achieve the weight reduction while ensuring the sealing property with the housing is desired.

Japanese Unexamined Patent Publication No. 2016-97895

An object of the present invention is to provide a brake fluid pressure control device for a vehicle, which can reduce the weight while ensuring the sealing property with the housing.

The invention according to claim 1 is a vehicle brake fluid pressure control device including a substrate on which a brake fluid path is formed and a housing attached to one surface of the substrate.
The substrate includes a main body portion on which the brake fluid path is formed, and a bulging portion formed on one side end portion on at least one side surface of the main body portion.
The housing is attached to the main body and the bulge,
The housing includes a peripheral wall portion in which one side abuts on one surface of the substrate, a substrate accommodating portion provided on the other side of the peripheral wall portion, and a connector portion protruding from the substrate accommodating portion toward the substrate side.
The bulging portion is provided on the side surface of the main body portion closest to the connector portion of the housing .

The invention according to claim 2 is the brake fluid pressure control apparatus for a vehicle according to claim 1 Symbol placement,
The main body is characterized in that one system of the brake fluid passages is formed.

The invention according to claim 3 is the brake fluid pressure control apparatus for a vehicle according to claim 1 or claim 2 Symbol placement,
A motor is attached to the one surface of the main body, and the motor is housed in the housing.

According to the configuration of claim 1, by providing the bulging portion in the main body portion, a housing larger than the main body portion can be attached to the substrate. That is, by providing the bulging portion, it is possible to secure the sealing surface with the housing while reducing the weight of the main body portion in which the brake fluid path is formed, and as a result, the weight of the entire vehicle brake control device is reduced. Can be planned.

In addition, according to the configuration of claim 1 , the bulging portion can be provided by effectively utilizing the space between the side surface of the substrate and the connector portion.

According to the configuration of claim 2 , the weight of the main body can be further reduced as one system of brake fluid passages.

According to the third aspect , the motor can be accommodated in the space inside the housing, and the weight of the vehicle brake control device as a whole can be further reduced.

It is a basic block diagram of the brake fluid pressure control device for a vehicle corresponding to 1 system which concerns on this invention. It is a top view of the brake fluid pressure control device for a vehicle. FIG. 2 is a sectional view taken along line 3-3 of FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the vehicle brake hydraulic pressure control device 10B is released from the master cylinder 12 that pressurizes the hydraulic fluid and generates hydraulic pressure in response to the operation of the brake lever 11 and the front wheel brake caliper 14 side. A reservoir 13 that temporarily stores the hydraulic fluid, an inlet control valve 15 that is a normally open solenoid valve and an outlet control valve 16 that is a normally closed solenoid valve provided between the master cylinder 12 and the front wheel brake caliper 14. A pump 17 that sucks the hydraulic fluid stored in the reservoir 13 and returns it to the master cylinder 12 side, a motor 29B that drives the pump 17, and drive control of the motor 29B and opening / closing control of the inlet control valve 15 and the outlet control valve 16. The control device 30B and the brake fluid passages A1, B1, C1, D1 and E1 provided on the base 40B for flowing the brake fluid are provided.

Here, the brake fluid passage A1 is a fluid passage from the inlet port 12P to the inlet control valve 15, and the brake fluid passage B1 is a fluid passage from the 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 reservoir 13, and the brake fluid passage D1 is a fluid passage from the reservoir 13 to the pump 17. Further, the brake fluid path E1 is a fluid path from the pump 17 to the brake fluid path A1.

Next, the operation of the vehicle brake fluid pressure control device 10B will be described.
-ABS non-operating state: When there is no concern that the front wheels will lock, the pump 17 is stopped, the inlet control valve 15 is opened, and the outlet control valve 16 is closed by the control device 30B. When the brake lever 11 is operated to the braking side in this state, the hydraulic pressure is increased by the master cylinder 12, and this hydraulic pressure is transmitted to the front wheel brake caliper 14 via the inlet control valve 15.

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

ABS (retained mode): The control device 30B closes both the inlet control valve 15 and the 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 30B opens the inlet control valve 15 and closes the 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 pressure of the front wheel brake caliper 14.

FIG. 2 is a plan view of the vehicle brake control device, and FIG. 3 is a sectional view taken along line 3-3 of FIG.
As shown in FIG. 2, the housing 36B has openings formed on the front side and the back side, and is provided on the peripheral wall portion 84 in which one side abuts on the substrate 40B and on the other side of the peripheral wall portion 84 to control the housing 36B. A substrate accommodating portion 85 for accommodating the substrate 99 and a connector portion 37 projecting from the substrate accommodating portion 85 toward the substrate 40B are provided.
As shown in FIG. 3, the solenoid valve 15 as an inlet control valve and the solenoid valve 16 as an outlet control valve include a solenoid coil 33. The electromagnetic coil 33 includes a yoke portion 86 having a flat side surface 86a.
The peripheral wall portion 84 has a quadrangular shape and includes a chamfered portion 88 having at least one chamfered portion. Inside the peripheral wall portion 84, two solenoid valves 15 and 16, electromagnetic coils 33 and 33, and a motor 29B are housed. A containment chamber 89 is provided.

The solenoid valves 15 and 16 are housed in the storage chamber 89 so that the side surface 86a of the yoke portion 86 and the chamfered portion 88 face each other. The distance between the adjacent yoke portions 86, 86 can be widened. As a result, the distance between the terminals 91 and 91 extending from the electromagnetic coils 33 and 33 is widened, the area of the yoke portion 86 is increased, the magnetic path area of the yoke portion 86 can be secured, and the housing 36B and the base 40B are downsized. Can be planned.

Further, by chamfering the peripheral wall portion 84 of the housing 36B, the clamp seat 97 at the time of processing can be provided on the base 40B portion protruding from the peripheral wall portion 84 without increasing the size of the base 40B.

As shown in FIG. 2, in a vehicle brake fluid pressure control device 10B including a base 40B and a housing 36B attached to one surface of the base 40B, the base 40B is a main body 128 and a main body 128. It is composed of a canopy-shaped bulging portion 129 that bulges sideways in order to increase the seal width from at least one side surface. The main body 128 is provided with a housing mounting surface 128a to which the housing 36B is mounted, and similarly, the bulging portion 129 is provided with a housing mounting surface 129a to which the housing 36B is mounted.
The housing 36B is attached to the main body 128 and the bulge 129 by receiving the flange portion 92 on the housing 36B side at the housing mounting surface 129a of the bulging portion 129 and the housing mounting surface 128a of the main body 128. I did.

As is clear from FIG. 2, the bulging portion 129 locally protrudes from the main body portion 128 like an eave. Rather than projecting the main body 128 as a whole, it is possible to reduce the thickness of the base 40B by the volume S2 shown by the imaginary line.
That is, by providing the bulging portion 129, it is possible to secure a sealing surface with the housing 36B while reducing the weight of the main body portion 128 of the base 40B, and as a result, the entire vehicle brake fluid pressure control device 10B can be secured. The weight can be reduced.

The bulging portion 129 may be provided on any of the four side surfaces of the main body portion 128 of the base 40B, but in the embodiment, the bulging portion 129 is provided on the side surface of the main body portion 128 closest to the connector portion 37 of the housing 36B. With this configuration, the bulging portion 129 can be provided by effectively utilizing the space between the connector portion 37 and the base 40B.

In this embodiment, the bulging portion 129 is provided on the base 40B of the vehicle brake fluid pressure control device corresponding to one system, but it may be provided on the base of the vehicle brake fluid pressure control device corresponding to two systems. ..

Further, in addition to the housing 36B for accommodating the motor 29B, the housing 36B not accommodating the motor 29B may be received by the main body portion 128 and the bulging portion 129.
However, when applied to the housing 36B for accommodating the motor 29B as in the present embodiment, it is possible to further reduce the size of the vehicle brake fluid pressure control device 10B as a whole while promoting the effective use of the space in the housing 36B. ..

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.

10B ... Vehicle brake fluid pressure control device, 36B ... Housing, 40B ... Base, 85 ... Peripheral wall, 86 ... Board storage, 128 ... Main body, 128a, 129a ... Housing mounting surface, 129 ... Swelling, A1, B1, C1, D1, E1 ... Brake fluid path.

Claims (3)

A vehicle brake fluid pressure control device including a substrate on which a brake fluid path is formed and a housing attached to one surface of the substrate.
The substrate includes a main body portion on which the brake fluid path is formed, and a bulging portion formed on one side end portion on at least one side surface of the main body portion.
The housing is attached to the main body and the bulge,
The housing includes a peripheral wall portion in which one side abuts on one surface of the substrate, a substrate accommodating portion provided on the other side of the peripheral wall portion, and a connector portion protruding from the substrate accommodating portion toward the substrate side.
A vehicle brake fluid pressure control device , wherein the bulging portion is provided on a side surface of the main body portion, which is closest to the connector portion of the housing. In the brake fluid pressure control apparatus for a vehicle according to claim 1 Symbol placement,
A vehicle brake fluid pressure control device characterized in that one system of the brake fluid passages is formed in the main body portion. In the brake fluid pressure control apparatus for a vehicle according to claim 1 or claim 2 Symbol placement,
A vehicle brake fluid pressure control device, characterized in that a motor is mounted on the one surface of the main body portion, and the motor is housed in the housing.

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