JP5391182B2 - Hydraulic control device - Google Patents

Description

  The present invention relates to a hydraulic pressure control device capable of controlling a brake hydraulic pressure applied to a wheel brake, for example.

  2. Description of the Related Art Conventionally, a hydraulic pressure control device that controls brake hydraulic pressure acting on a wheel cylinder of a wheel brake is known. As this type of hydraulic pressure control device, for example, as disclosed in Patent Literature 1 and Patent Literature 2, a vent hole for ventilating the inside and the outside of the housing is formed in the base body.

  A waterproof ventilation member that prevents the entry and exit of water while allowing the entry and exit of air is attached to the ventilation hole. Further, a communication hole is provided for communicating the internal space of the connector with the interior of the housing.

JP 2008-105628 A JP 2000-168530 A

  However, in the structures disclosed in Patent Documents 1 and 2, although the waterproof ventilation member is provided between the inside of the housing (base) and the outside, the internal space of the connector and the inside of the housing communicate with each other. When the connector is attached or detached, it is necessary to connect the connector so that water does not enter the housing, which causes a problem that the workability becomes complicated. Further, if a waterproof member is separately provided between the connector chamber and the housing chamber, the cost increases.

  The present invention has been made in view of the above points, and improves the ease of assembly when attaching and detaching the connector, and suppresses the cost increase due to the provision of a separate waterproof member, while allowing water to enter the housing. It is an object of the present invention to provide a hydraulic pressure control device capable of blocking.

  The present invention, which has been devised to solve such a problem, includes a base, a housing that is attached to one surface of the base and accommodates electrical components therein, and a connector that is electrically connected to the electrical components. In the hydraulic pressure control device, the housing is provided with a vent hole that ventilates the housing chamber in the housing and the outside, and a communication hole that communicates the housing chamber and the connector chamber in the connector. Each opening of the air hole and the communication hole is covered from the inner side of the housing by a common waterproof ventilation member.

  According to the present invention, since the ventilation hole and the communication hole are covered with the common waterproof ventilation member from the inner side of the housing, both the ventilation hole and the communication hole are simultaneously waterproofed by the single waterproof ventilation member. be able to. Moreover, by ventilating with external space, a housing chamber and a connector chamber can be hold | maintained to atmospheric pressure, and a pressure change can be prevented. As a result, in the present invention, it is possible to suitably prevent water from entering the housing even when the connector is attached / detached while suppressing the increase in cost due to the provision of a separate waterproof member. Can be improved.

  The vent hole may be formed between the peripheral wall portion of the housing in which the electrical component is accommodated and the connector housing forming the connector chamber. In this way, the position of the opening of the ventilation hole facing the external space of the housing can be set to a position where the water is not directly hit by the peripheral wall portion of the housing and the connector housing (sandwiched). Invasion of water from can be avoided as much as possible.

  Furthermore, the waterproof ventilation member is preferably fixed at a position inside the housing and straddling one side surface of the connector housing as viewed from the connector chamber side. In this way, the waterproof ventilation member can be stably fixed to the waterproof ventilation member at a position where it is difficult to directly contact water, and the ventilation hole and the communication hole are efficiently covered with the common waterproof ventilation member. be able to.

  Furthermore, the base body may be fixed to the housing at a position where one side surface of the base body protrudes toward the vent hole. If it does in this way, it will become a labyrinth seal structure by a part of base which projected to the vent hole side. With this labyrinth seal structure, it is possible to effectively prevent water from directly hitting the vent hole and the waterproof vent member.

  Furthermore, it is preferable that a shielding rib extending toward the vent hole is provided on the peripheral wall portion of the housing. If it does in this way, it will become a labyrinth seal structure by the shielding rib extended toward the ventilation hole side. With this labyrinth seal structure, it is possible to effectively prevent water from directly hitting the vent hole and the waterproof vent member.

  Furthermore, the connector has a connector to which a harness is connected, a connector to which the harness is connected, and a connector part that is detachably provided, and either the connector to which the harness is connected or the connector part. Is preferably provided with a shielding flange extending to the vent hole side. If it does in this way, it will become a labyrinth seal structure by the shielding flange extended in the vent hole side. With this labyrinth seal structure, it is possible to effectively prevent water from directly hitting the vent hole and the waterproof vent member.

  According to the present invention, a hydraulic pressure control device capable of improving the assembling property at the time of attaching / detaching the connector and preventing the intrusion of water into the housing while suppressing an increase in cost due to the provision of a separate waterproof member. Is obtained.

1 is an exploded perspective view of a vehicle brake hydraulic pressure control device according to an embodiment of the present invention. It is a longitudinal cross-sectional view of the brake fluid pressure control apparatus for vehicles shown in FIG. (A) is a perspective view of the control housing which comprises the vehicle brake hydraulic pressure control apparatus shown in FIG. 1, (b) is a perspective view of the control housing seen from the opposite side of (a). FIG. 4 is an enlarged longitudinal sectional view taken along line IV-IV in FIG. 3. It is an expanded longitudinal cross-sectional view which shows 2nd Example of a labyrinth seal structure. It is an expanded longitudinal cross-sectional view which shows 3rd Example of a labyrinth seal structure.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, a vehicular brake hydraulic pressure control device (hereinafter referred to as “brake control device”) 10 according to an embodiment of the present invention includes a motorcycle, an automatic tricycle, an all-terrain vehicle (ATV), an automatic four-wheel vehicle. It is suitably used for a vehicle such as a wheeled wheel, and appropriately controls a braking force (brake hydraulic pressure) applied to the vehicle wheel. In the following, an example in which the brake control device 10 is applied to a motorcycle (not shown) will be described, but this is not intended to limit the vehicle on which the brake control device 10 is mounted.

  As shown in FIG. 1, the brake control device 10 basically includes a base body 12 on which various members such as an electromagnetic valve described later are mounted, a motor 14, and a control housing (housing) 16. It is configured as an integrally assembled unit. A seal member 18 is interposed between the base 12 and the control housing 16.

  The seal member 18 may be formed of, for example, a metal gasket, a metal gasket whose surface is coated with a rubber coating, a paper gasket, an elastic member such as rubber, or a liquid sealant made of a silicone-based liquid gasket. . The seal member 18 is sandwiched between the front surface 12b of the base 12 and the peripheral wall portion 20 of the control housing 16, and exhibits a sealing function.

  The motor 14 is assembled to the rear surface 12a along the lateral direction of the base body 12 formed in a substantially rectangular parallelepiped shape, while the control housing 16 is assembled to the front surface 12b of the base body 12 opposite to the rear surface 12a. The electrical parts described later are accommodated.

  As shown in FIG. 2, the motor 14 includes a motor housing 22, a stator (stator) 24, a rotor (rotor) 28 that rotates integrally with the rotating shaft 26 in a predetermined direction, and a commutator (commutator). 30 and a plurality of bearings 32a to 32c that rotatably support the rotating shaft 26. The motor 14 may be a brush motor or a brushless motor.

  Further, the motor 14 is provided with a power feeding portion (motor bus bar) 34 formed of a rod-like body protruding substantially in parallel with the rotation shaft 26. The power feeding section 34 is made of a conductor and has two strip-shaped power feeding pieces 36a, 36b (in FIG. 1, only one of them) whose base end is electrically connected to a motor side connection terminal (not shown). Are disposed on both sides of the insulator 38. When the motor 14 is assembled to the base 12, the leading end of the power feeding part 34 that penetrates the insertion hole 40 of the base 12 is electrically connected to the connection terminal 42 of the control housing 16.

  As shown in FIG. 2, a gap 44 is provided between the insertion hole 40 (inner wall) of the base 12 and the power supply portion 34 of the motor 14. Through this gap 44, a motor chamber 46 in the motor housing 22 and a housing chamber 48 described later in the control housing 16 are provided so as to communicate with each other.

  Returning to FIG. 1, a pair of inlet ports (connection ports) 50, 50 are formed in the left and right upper ends of the rear surface 12 a of the base 12 on which the motor 14 is provided. A pair of outlet ports (connection ports) 52 and 52 are formed in the upper surface 12c of the base 12 so as to open.

  The base body 12 is made of a metal member having a substantially rectangular parallelepiped shape. A fluid passage (not shown) through which a brake fluid as a fluid flows, a rotating shaft accommodation hole 54 of the motor 14, and a power feeding portion 34 of the motor 14 pass through. An insertion hole 40, a pump housing hole 56, and the like are formed. The rotating shaft accommodation hole 54 is a hole with a bottom having a circular cross section that opens on one side surface 12a of the base 12 and accommodates the rotating shaft 26 of the motor 14, the bearings 32b, 32c, and the like (see FIG. 2).

  The pair of pump accommodation holes 56 penetrates from the rotation shaft accommodation hole 54 to the left and right side surfaces of the base body 12 (only the right side surface 12d is shown in FIG. 1), and is formed on both sides of the rotation shaft accommodation hole 54, respectively. The The pair of pump housing holes 56 are arranged coaxially, and are provided so as to extend in the direction of the surface normal (perpendicular direction) with respect to the left and right side surfaces (12d). In this case, a pump (not shown) is assembled through a pair of pump housing holes 56, 56 respectively formed on the left and right side surfaces (12 d) of the base 12. Further, an electromagnetic valve mounting hole (not shown) for mounting the electromagnetic valve 57 is formed in the front surface 12b of the base 12 so as to communicate with the brake fluid flow path.

  As shown in FIG. 1, the base 12 is formed with a pair of housing mounting through holes 58 and a motor mounting hole 60. The housing mounting through-hole 58 is configured by a hole that penetrates from the rear surface 12a to the front surface 12b of the base 12. In this case, the control housing 16 is fixed to the base 12 by fastening the male thread portion of the housing mounting screw 62 inserted through the housing mounting through-hole 58 into the housing fixing hole 20 b described later of the control housing 16.

  The motor mounting hole 60 includes a bottomed hole portion into which the motor mounting screw 66 is screwed. In this case, the motor 14 is fixed to the base 12 by the male screw portion of the motor mounting screw 66 being screwed into the female screw portion formed in the motor mounting hole 60. The housing mounting through hole 58 and the motor mounting hole 60 are disposed so as to straddle the pump housing hole 56 in the vertical direction at a close position that does not interfere with the pump housing hole 56.

  A pipe (not shown) from a hydraulic pressure source such as a master cylinder (not shown) is connected to the inlet ports 50 and 50, and brake fluid is introduced from the hydraulic pressure source. Further, the inlet ports 50 and 50 are provided so as to communicate with the electromagnetic valve mounting hole via a fluid passage (not shown). Pipes (not shown) leading to the wheel brakes are connected to the outlet ports 52 and 52, and the outlet ports 52 and 52 are provided so as to communicate with the electromagnetic valve mounting hole via a fluid passage (not shown).

  A pair of reservoirs (not shown) are connected to the fluid passage of the base 12 through a pipe. This reservoir is discharged from the wheel cylinder side of the wheel brake through the communication passage communicating with the fluid passage of the base body 12 when the electromagnetic valve 57 is opened during the pressure reduction control of the wheel brake. Brake fluid) is temporarily stored.

  As shown in FIG. 1, the control housing 16 includes various electrical components described later, a housing main body 68, and a connector 70. The connector 70 includes a male connector portion (connector portion) 70a provided integrally with the housing main body portion 68, and a female connector portion (connector to which a harness is connected) 70b electrically connected to the male connector 70a. Have.

  In this case, the male connector portion 70a and the female connector portion 70b are integrally fitted to form a connector chamber 86 closed between the male connector housing 71 and the female connector housing 73 (FIG. 4). reference). The control housing 16 also includes a coil assembly 72 attached to the electromagnetic valve 57, a control board 74 (see FIG. 2) for controlling the operation of the electromagnetic valve 57, and the like as electrical components. When the control housing 16 and the base 12 are assembled together, the male connector housing 71 is provided so as to protrude toward the base 12 from the opening 68 a of the peripheral wall 20.

  The housing main body 68 is made of a resin material. As shown in FIG. 3, the housing main body 68 includes a frame portion 75 that forms a substantially rectangular outer frame, a substantially rectangular peripheral wall portion 20 that is coupled to the frame portion 75, and the male connector portion 70a. A flat plate-like wall portion 77 that is provided between the peripheral wall portion 20 and connects the peripheral wall portion 20 and the male connector portion 70a.

  As shown in FIG. 3A, four props 79 that support the control board 74 are bulged and formed on the wall portion 77. Further, as shown in FIG. 4, the wall portion 77 is formed with a vent hole 96 for ventilating the housing chamber 48 in the housing main body portion 68 and the external space. A communication hole 88 that allows the housing chamber 48 and the connector chamber 86 in the connector 70 to communicate with each other is formed in the wall portion 77 adjacent to the vent hole 96.

  The ventilation hole 96 and the communication hole 88 are formed so as to penetrate both the front and back surfaces of the wall 77. The vent hole 96 and the communication hole 88 are formed at positions where the openings in the housing main body 68 are close to each other. As shown in FIG. 4, the wall 77 is formed to be parallel or substantially parallel to the contact surface (housing seal surface) of the housing body 68 connected to the base 12 via the seal member 18. Is done. That is, the inner surface of the wall 77 is provided so as to be parallel to the front surface 12 b of the base 12. Further, as shown in FIG. 1, the wall portion 77 is formed so as to be positioned closer to the base body 12 than the frame portion 75 as a positional relationship between the three portions of the frame portion 75, the wall portion 77, and the peripheral wall portion 20. The peripheral wall portion 20 is formed so as to be positioned closer to the base body 12 than the wall portion 77.

  By providing the vent hole 96 and holding the housing chamber 48 at atmospheric pressure, it is possible to suppress a pressure change (atmospheric pressure change) in the housing chamber 48 caused by a temperature change.

  By providing the communication hole 88 that allows the connector chamber 86 and the housing chamber 48 to communicate with each other, the atmospheric pressure in the connector chamber 86 can be maintained at atmospheric pressure. As a result, deformation of the male connector housing 71 and the female connector housing 73 can be avoided, and good adhesion between the male connector housing 71 and the female connector housing 73 can be maintained.

  Furthermore, since it is possible to prevent the inside of the connector chamber 86 from becoming a negative pressure, for example, an illustration connected to the distal end portion of the wire harness portion 106 (see FIG. 1) extending from the female connector portion 70b to the outside. It is possible to suitably avoid water from entering between the parts such as the wheel speed sensor and the coating of the wire harness portion 106 that are not caused by capillary action.

  The opening of the ventilation hole 96 facing the housing chamber 48 side and the opening of the communication hole 88 facing the housing chamber 48 side are common (single) waterproof ventilation members 98 from the inner side (housing chamber 48 side) of the housing main body 68. It is covered by.

  The waterproof ventilation member 98 has a function of preventing the entry and exit of water while allowing the entry and exit of air. The waterproof ventilation member 98 is made of, for example, a gas-permeable porous film such as Gore-Tex (registered trademark), and can prevent entry of water, dust, and the like from the ventilation hole 96 into the housing chamber 48. In FIG. 3A, the waterproof ventilation member 98 is formed in a circular shape. However, the shape is not limited to this, and may be, for example, a rectangular shape or other complex shapes.

  The waterproof ventilation member 98 is fixed to the planar inner surface of the wall portion 77 from the inside (housing chamber 48 side) of the housing main body 68 through fixing means. Examples of the fixing means for directly fixing the waterproof ventilation member 98 to the wall portion 77 include ultrasonic welding and thermal welding in which the resin of the wall portion 77 is melted by Joule heat that causes an electric current to flow through the electrical resistor (for example, IMPULSE WELDING). ) Etc., the resin portion of the wall 77 can be melted.

  For this reason, the waterproof ventilation member 98 can be directly fixed to the plane of the wall 77 by the anchor effect. Further, as another fixing means, for example, by using a sticky substance such as an adhesive, the waterproof ventilation member 98 may be directly attached to the plane of the wall portion 77 like a sealing member (not shown). Good.

  Thus, by directly fixing the waterproof ventilation member 98 to the wall portion 77, for example, a metal fitting for fixing the waterproof ventilation member 98 to the wall portion 77 becomes unnecessary, and the number of parts is reduced and the manufacturing cost is reduced. Can be reduced.

  The housing main body 68 and the male connector housing 71 are integrally formed of a resin material by a mold device (not shown), and the vent hole 96 and the communication hole 88 can be easily formed by a mold device (not shown).

  As shown in FIG. 4, the housing main body 68 is fixed to the base body 12 so that the air holes 96 are covered with the right side surface 12 d of the base body 12. That is, the housing main body 68 and the base body 12 are located at a position where the right side surface (one side surface) 12d of the base body 12 protrudes from the side surface 20e of the flange portion 20a (the peripheral wall portion 20 side) of the housing main body portion 68 to the air vent 96 side. It is fixed. In this case, a part of the base body 12 that protrudes toward the male connector housing 71 is provided so as to cover (block) the vent hole 96, and the labyrinth seal that prevents the entry of water from the external space into the vent hole 96 as much as possible. Structure 92 results.

  That is, the right side surface 12d of the base 12 is positioned on the male connector portion 70a side with respect to the axis A of the vent hole 96, and the external line and the axis A of the vent hole 96 that vents and the protruding part of the base 12 are over. By being set to wrap, the vent hole 96 is provided to be blocked from the external space. In addition, the labyrinth is constructed by providing a labyrinth structure in which the distance between the right side surface 12d of the base 12 and the one side surface 71a of the male connector housing 71 facing each other is narrower than that of other portions. A seal structure 92 is configured. Note that the right side surface 12d of the base body 12 can exhibit a labyrinth effect only by protruding toward the axis A side of the vent hole 96 without overlapping the axis A of the vent hole 96.

  Returning to FIG. 3, the peripheral wall 20 of the housing main body 68 surrounds the plurality of coil assemblies 72. The peripheral wall 20 is formed with an opening 68a that is connected to the base 12 via a seal member 18 (see FIGS. 1 and 2). The peripheral wall portion 20 is formed with a thick flange portion 20a that protrudes outward. The flange portion 20a is provided with a pair of housing fixing holes 20b into which the housing mounting screws 62 are screwed and a reinforcing rib 20c.

  As shown in FIG. 2, the housing main body 68 is provided with a lid 76 that closes an opening formed on the side opposite to the surface on the base 12 side. Further, the housing main body 68 is provided with a connection terminal 42 into which the distal end portion of the power feeding portion 34 of the motor 14 penetrating the base 12 is inserted and electrically connected.

  As shown in FIG. 3B, the housing fixing hole 20 b is configured by a bush 78 that is insert-molded with respect to the housing main body 68. The bush 78 is made of a metal cylinder, and an internal thread is engraved on the inner peripheral surface of the cylinder. The housing fixing hole 20b is disposed so as to be coaxial with the housing mounting through hole 58 when the control housing 16 is assembled to the base 12.

  Of the pair of housing fixing holes 20b, 20b, the end of the bush 78 (the right-side bush 78 in FIG. 3B) that constitutes one housing fixing hole 20b that is separated from the male connector housing 71 described later. Is closed in the housing body 68. Further, an end portion of a bush 78 (the bush 78 on the left side as viewed in FIG. 3B) constituting the other housing fixing hole 20 b adjacent to the male connector housing 71 described later is a housing chamber 48 in the housing main body 68. It can be communicated with.

  The reinforcing rib 20c is provided so as to extend in a substantially L shape in plan view from the peripheral portion of the housing fixing hole 20b toward the corner portion of the peripheral wall portion 20. Between the reinforcing rib 20c and the peripheral wall portion 20, a lightening hole portion 20d for achieving weight reduction is provided.

  In the housing chamber 48, electrical components such as a coil assembly 72 and a control board 74 are accommodated. The coil assembly 72 includes a solenoid coil configured by winding an electric wire around a bobbin, a movable iron core, a fixed iron core, and the like. The control board 74 has electronic parts such as a semiconductor chip, a capacitor, and a diode mounted on a rectangular board body on which an electronic circuit (not shown) is printed.

  Since the air holes 96 are disposed in the vicinity of the heat generating electronic components mounted on the board body, the heat generated from the heat generating electronic components can be released to the external space through the air holes 96.

  As shown in FIG. 2, the control board 74 is electrically connected to a terminal portion 80 provided on the housing main body 68 by wire bonding 78. The control board 74 is provided so as to control the electromagnetic valve 57, the motor 14, and the like based on detection information obtained from various sensors (not shown) provided in the vehicle, a program stored in advance, and the like.

  As shown in FIG. 1 and FIG. 3B, the male connector portion 70 a has a bottomed cylindrical male connector housing 71 formed integrally with the housing main body portion 68, and toward the female connector portion 70 b side. And a plurality of protruding connector pins 82.

  On the other hand, the female connector portion 70b is electrically connected by inserting a bottomed cylindrical female connector housing 73 detachably provided with the male connector housing 71 and a connector pin 82 of the male connector portion 70a. A pin receiving portion (not shown).

  Further, as shown in FIG. 2, the housing chamber 48 of the housing main body 68 is connected to the motor via a gap 44 formed between the insertion hole 40 (inner wall) of the base 12 and the power feeding portion 34 of the motor 14. It is provided to ventilate (communicate with) the motor chamber 46 in the housing 22. As a result, the housing chamber 48 and the connector chamber 86 are provided so as to communicate with each other through the communication hole 88, and further, the housing chamber 48 and the external space are provided through the vent hole 96. For this reason, the motor chamber 46 in the motor housing 22 is kept at atmospheric pressure by ventilating with the external space.

  Next, a second embodiment of the labyrinth seal structure 92 is shown in FIG. In the labyrinth seal structure 92a according to the second embodiment, a shielding rib 100 extending toward the male connector housing 71 is provided on the flange portion 20a (the peripheral wall portion 20 side) of the housing main body 68. There is a feature. The shielding rib 100 may be provided over the entire surface of the flange portion 20a, or may be provided on a part of the flange portion 20a.

  By setting the axial line A of the ventilation hole 96 and the shielding rib 100 so as to overlap with the external space, the ventilation hole 96 is provided to be blocked from the external space. In other words, the front end surface 100 a of the shielding rib 100 is provided so as to be positioned closer to the male connector portion 70 a than the axis A of the vent hole 96. In addition, the separation distance between the front end surface 100a of the shielding rib 100 extending from the housing main body 68 and facing one another and the one side surface 71a of the male connector housing 71 is narrower than that of other portions. It becomes a maze structure.

  Furthermore, a third embodiment of the labyrinth seal structure 92 is shown in FIG. In the labyrinth seal structure 92b according to the third embodiment, a shielding flange 102 that protrudes outward (to the peripheral wall 20 side) is formed on the outer peripheral surface of the opening of the female connector housing 73 that fits with the male connector housing 71. It is characterized in that it is provided. The shielding flange 102 is located closer to the peripheral wall portion 20 than the axis A of the vent hole 96.

  By setting the axis A of the ventilation hole 96 that vents to the external space and the shielding flange 102 to overlap, the ventilation hole 96 is provided to be blocked from the external space. In addition, a portion near the opening of the vent 96 facing the external space has a narrow maze structure between the outer surface 77a of the wall 77 and the shielding flange 102.

  In this way, by providing a member that shields the air holes 96 formed in the wall 77 of the housing main body 68 from the external space, the labyrinth seal structures 92, 92a, and 92b can be obtained. With this labyrinth seal structure 92, 92a, 92b, it is possible to prevent water from entering the ventilation hole 96 from the outside space as much as possible. In addition, the labyrinth seal structures 92, 92a, and 92b can be configured to be appropriately combined to form a labyrinth structure that more effectively suppresses the entry of water.

  The brake control device 10 according to the embodiment of the present invention is basically configured as described above. Next, the function and effect will be described.

  In the present embodiment, since the ventilation hole 96 and the communication hole 88 are covered with the common waterproof ventilation member 98 from the inside of the housing main body 68, the ventilation hole 96 and the communication hole 88 are formed by the single waterproof ventilation member 98. Both can be made waterproof at the same time. Further, in this embodiment, the housing chamber 48 and the connector chamber 86 can be held at atmospheric pressure by ventilating with the external space, and the pressure change can be prevented. As a result, in this embodiment, it is possible to suitably prevent water from entering the housing main body 68 even when the connector 70 is attached or detached, while suppressing an increase in cost due to the provision of a separate waterproof member. The assembling property at the time of attachment / detachment can be improved.

  Further, in the present embodiment, the vent hole 96 is formed in the wall portion 77 between the flange portion 20 a (the peripheral wall portion side) of the housing main body portion 68 and the male connector housing 71 that forms the connector chamber 86. With this configuration, the position of the opening of the air vent 96 facing the outer space of the housing main body 68 is surrounded by the flange 20a (peripheral wall side) of the housing main body 68 and the male connector housing 71 ( It is possible to make it a position where it is difficult for direct water to be caught, and it is possible to avoid the intrusion of water from the vent hole 96 as much as possible.

  Further, in the present embodiment, the waterproof ventilation member 98 is fixed to a position inside the housing main body 68 and straddling the one side surface 71a of the male connector housing 71 when viewed from the connector chamber 86 side. With this configuration, the waterproof ventilation member 98 can be stably fixed to the waterproof ventilation member 98 at a position where it is difficult to directly contact water, and the ventilation hole 96 and the communication hole 88 are provided in common. The waterproof ventilation member 98 can be efficiently covered.

  Furthermore, in this embodiment, the right side surface (one side surface) 12d of the base body 12 protrudes toward the vent hole 96 from the flange portion 20a (the peripheral wall portion 20) of the housing main body portion 68, and the housing main body portion 68 and It is fixed. Furthermore, in this embodiment, a part of the base body 12 protruding toward the vent hole 96 is set so as to overlap with the axis A of the vent hole 96. With this configuration, the labyrinth seal structure 92 is formed by a part of the base body 12 protruding to the male connector housing 71 side (the vent hole 96 side) (see FIG. 4). The labyrinth seal structure 92 can effectively prevent water from directly hitting the vent hole 96 and the waterproof vent member 98.

  Furthermore, in the present embodiment, the shielding rib 100 extending toward the male connector housing 71 is provided on the flange portion 20a (the peripheral wall portion 20) of the housing main body 68. By comprising in this way, it becomes the labyrinth seal structure 92a with the shielding rib 100 extended toward the male connector housing 71 side (refer FIG. 5). The labyrinth seal structure 92a can effectively prevent water from directly hitting the vent hole 96 and the waterproof vent member 98.

  In this embodiment, the female connector housing 73 of the female connector portion 70b is provided with a shielding flange 102 that covers the vent hole 96 from the outside. With this configuration, the labyrinth seal structure 92b is formed by the shielding flange 102 that covers the vent hole 96 from the outside (see FIG. 6). The labyrinth seal structure 92b can effectively prevent water from directly hitting the vent hole 96 and the waterproof vent member 98.

  In this case, the arrangement of the male connector portion 70 a and the female connector portion 70 b is reversed, the female connector housing 73 is formed integrally with the housing main body 68, and the male connector housing 71 is fitted to the female connector housing 73. A shielding flange 102 may be provided. That is, the shield flange 102 may be provided on the male connector portion 70b.

  In the above description, the brake control device 10 that is suitably used for a motorcycle is illustrated, but the above-described technical matters may be applied to a brake control device used for a four-wheeled vehicle.

10 Vehicle brake hydraulic pressure control device (hydraulic pressure control device)
12 Base 12d Left side (one side)
16 Control housing (housing)
20 peripheral wall portion 48 housing chamber 70 connector 70a male connector portion (connector portion)
70b Female connector (connector to which harness is connected)
71 Male connector housing 71a One side 72 Coil assembly (electric part)
73 Female connector housing 74 Control board (electrical parts)
86 Connector room 88 Communication hole 96 Vent hole 98 Waterproof vent member 100 Shield rib 102 Shield flange 106 Wire harness part (harness)

Claims (6)

In a hydraulic control device comprising a base, a housing attached to one surface of the base and containing an electrical component therein, and a connector electrically connected to the electrical component,
The housing is provided with a vent hole that ventilates the housing chamber in the housing and the outside, and a communication hole that communicates the housing chamber and the connector chamber in the connector,
Each of the openings of the vent hole and the communication hole is covered from the inside of the housing by a common waterproof ventilation member. The hydraulic control device according to claim 1, wherein
The hydraulic control device according to claim 1, wherein the vent hole is formed between a peripheral wall portion of the housing in which the electrical component is accommodated and a connector housing forming the connector chamber. The hydraulic control device according to claim 2, wherein
The hydraulic control device according to claim 1, wherein the waterproof ventilation member is fixed at a position inside the housing and straddling one side surface of the connector housing as viewed from the connector chamber side. The hydraulic control device according to any one of claims 1 to 3,
The hydraulic pressure control device according to claim 1, wherein the base is fixed to the housing at a position where one side surface of the base protrudes toward the vent hole. The hydraulic control device according to any one of claims 1 to 4,
The hydraulic pressure control device according to claim 1, wherein a shielding rib extending toward the vent hole is provided on a peripheral wall portion of the housing. The hydraulic control device according to any one of claims 1 to 4,
The connector has a connector to which a harness is connected, a connector to which the harness is connected, and a connector part that is detachably provided, and either the connector to which the harness is connected or the connector part has: A hydraulic pressure control device, characterized in that a shielding flange extending to the vent hole side is provided.

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