Brake hydraulic control device and saddle-type vehicle

Abstract

Provided is a brake hydraulic pressure control device for a saddle-ride type vehicle, the brake hydraulic pressure control device being capable of increasing airtightness between a body portion and a lid in a housing, suppressing a leak of a seal material to the outside of the brake hydraulic pressure control device, and being downsized compared with a conventional device. The brake hydraulic pressure control device according to this invention comprises a housing which covers a coil for driving a hydraulic pressure adjustment valve for opening and closing a flow passage of a brake fluid and a circuit board for controlling current supply to the coil. The housing includes a body portion in which an opening portion is formed, and a lid which covers the opening portion and is attached to the body portion. The body portion includes a groove portion on the outer peripheral side of the opening portion. The lid includes an insertion wall inserted into the groove portion. A space for storing a seal material is formed between an outer peripheral wall of the groove portion and the insertion wall and between an inner peripheral wall of the groove portion and the insertion wall. The length of the outer peripheral wall extending toward the lid is longer than the length of the inner peripheral wall extending toward the lid.

Description

Technical Field

[0001] The present invention relates to a brake hydraulic control device for a saddle-type vehicle and a saddle-type vehicle equipped with the brake hydraulic control device.

Background Art

[0002] Some conventional vehicles such as saddle-type vehicles are equipped with a brake hydraulic control device for performing an anti-lock brake operation on the brake system. This brake hydraulic control device adjusts the braking force generated on the wheels by increasing or decreasing the pressure of the brake fluid in the brake fluid circuit while the vehicle occupant is operating an input part such as a brake lever. Among such brake hydraulic control devices, there are those in which a flow path constituting a part of the brake fluid circuit, a coil for driving a hydraulic adjustment valve for opening and closing the flow path, and a circuit board for controlling energization to the coil are unitized.

[0003] Specifically, the unitized brake hydraulic control device includes a base body in which a flow path for the brake fluid is formed, a coil erected on the base body for driving a hydraulic adjustment valve for opening and closing the flow path for the brake fluid, a circuit board for controlling energization to the coil, and a housing connected to the base body for covering the coil and the circuit board. The housing includes a main body part and a lid. The main body part is connected to the base body. An opening used when housing a circuit board or the like in the housing is formed in the main body part. The lid is attached to the main body part and covers the opening of the main body part (see, for example, Patent Document 1).

[0004] In a conventional unitized brake hydraulic control device, in order to prevent moisture and the like from entering the housing between the main body portion and the lid, there has been proposed one in which the airtightness between the main body portion and the lid in the housing is improved. A conventional brake hydraulic control device that improves the airtightness between the main body portion and the lid in the housing has a specific configuration as follows. The main body portion has a groove portion that opens toward the lid on the outer peripheral side of the opening portion. On the other hand, the lid has an insertion wall that extends toward the main body portion and is inserted into the groove portion. And the space between the groove portion and the insertion wall is sealed with a sealing material.

[0005] Here, in a conventional brake hydraulic control device that improves the airtightness between the main body portion and the lid in the housing, when attaching the lid to the main body portion, a sealing material is filled in the groove portion of the main body portion, and then the insertion wall of the lid is inserted into the groove portion. At this time, when inserting the insertion wall of the lid into the groove portion, the sealing material filled in the groove portion may leak to the outside of the outer peripheral wall of the groove portion. In other words, when inserting the insertion wall of the lid into the groove portion, the sealing material filled in the groove portion may leak to the outside of the brake hydraulic control device. For this reason, there has also been proposed a conventional brake hydraulic control device that improves the airtightness between the main body portion and the lid in the housing, in which a wall portion surrounding the outside of the outer peripheral wall of the groove portion (the portion where the sealing material leaks to the outside of the brake hydraulic control device) is provided on the lid to prevent the sealing material from leaking to the outside of the brake hydraulic control device.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] As described above, a conventional brake hydraulic control device that aims to improve the airtightness between the main body and the lid in the housing and to prevent the sealing material from leaking outside the brake hydraulic control device becomes larger in the direction perpendicular to the facing direction of the main body and the lid by the amount of the wall portion disposed on the outer peripheral side of the main body. For this reason, there has been a problem that it is difficult to miniaturize a conventional brake hydraulic control device that aims to improve the airtightness between the main body and the lid in the housing and to prevent the sealing material from leaking outside the brake hydraulic control device.

[0008] The present invention has been made in view of the above problems, and is a brake hydraulic control device that aims to improve the airtightness between the main body and the lid in the housing and to prevent the sealing material from leaking outside the brake hydraulic control device, and an object thereof is to obtain a brake hydraulic control device that can be miniaturized more than before. Further, an object of the present invention is to obtain a saddle-riding type vehicle equipped with such a brake hydraulic control device.

Means for Solving the Problems

[0009] The brake hydraulic control device according to the present invention includes a base body in which a flow path for brake fluid is formed, a coil that stands on the base body and drives a hydraulic adjustment valve for opening and closing the flow path, a circuit board that controls energization to the coil, and a housing that is connected to the base body and covers the coil and the circuit board. The housing includes a main body portion that is connected to the base body and has an opening formed therein, and a lid that covers the opening and is attached to the main body portion. The main body portion has a groove portion that opens toward the lid on the outer peripheral side of the opening. The lid has an insertion wall that extends toward the main body portion and is inserted into the groove portion. The brake hydraulic control device for a saddle-riding type vehicle is such that the space between the groove portion and the insertion wall is sealed with a sealing material. The groove portion includes a bottom portion, an outer peripheral wall that constitutes the wall on the outer peripheral side of the groove portion and extends from the bottom portion toward the lid, and an inner peripheral wall that constitutes the wall on the inner peripheral side of the groove portion and extends from the bottom portion toward the lid. A space for storing the sealing material is formed between the outer peripheral wall and the insertion wall and between the inner peripheral wall and the insertion wall. When the direction in which the main body portion and the lid face each other is defined as the first direction, the length of the outer peripheral wall in the first direction is longer than the length of the inner peripheral wall in the first direction.

[0010] Moreover, the saddle-riding type vehicle according to the present invention is provided with the brake hydraulic control device according to the present invention.

Effect of the Invention

[0011] In the brake hydraulic control device according to the present invention, the length of the outer peripheral wall of the groove portion in the first direction (the length in the direction in which the main body portion and the lid face each other) is longer than the length of the inner peripheral wall of the groove portion in the first direction. Therefore, in the brake hydraulic control device according to the present invention, a sealing material that leaks to the outside of the brake hydraulic control device in the conventional brake hydraulic control device can be stored between the outer peripheral wall of the groove portion and the insertion wall. That is, in the brake hydraulic control device according to the present invention, even if the wall portion provided in the lid of the conventional brake hydraulic control device is not provided in order to suppress the leakage of the sealing material to the outside of the brake hydraulic control device, the leakage of the sealing material to the outside of the brake hydraulic control device can be suppressed. For this reason, the brake hydraulic control device according to the present invention can suppress the leakage of the sealing material to the outside of the brake hydraulic control device while suppressing the increase in size of the brake hydraulic control device in the direction perpendicular to the direction in which the main body portion and the lid face each other.

[0012] Here, in the brake hydraulic control device, a coil that drives a hydraulic pressure adjusting valve and a circuit board that controls energization to the coil are housed in a housing. For this reason, originally, the housing of the brake hydraulic control device requires a certain length in the direction in which the main body portion and the lid face each other. Therefore, even if the length of the outer peripheral wall of the groove portion in the first direction is made longer than the length of the inner peripheral wall of the groove portion in the first direction, the brake hydraulic control device according to the present invention does not increase in size in the direction in which the main body portion and the lid face each other compared to the conventional brake hydraulic control device. For this reason, the brake hydraulic control device according to the present invention can be made smaller than a conventional brake hydraulic control device that improves the airtightness between the main body portion and the lid in the housing and suppresses the leakage of the sealing material to the outside of the brake hydraulic control device.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0014] Hereinafter, a brake hydraulic control device and a saddle-riding type vehicle according to the present invention will be described with reference to the drawings.

[0015] In the following, the case where the present invention is applied to a bicycle (e.g., a two-wheeled bicycle, a three-wheeled bicycle, etc.) will be described. However, the present invention may be applied to other saddle-riding type vehicles other than bicycles. Other saddle-riding type vehicles other than bicycles are, for example, motorcycles, three-wheeled motorcycles, and buggies, etc., which use at least one of an engine and an electric motor as a drive source. Also, a bicycle means all vehicles that can be propelled on the road by the pedaling force applied to the pedals. That is, bicycles include ordinary bicycles, electric assist bicycles, electric bicycles, etc. Also, a motorcycle or a three-wheeled motorcycle means a so-called motorbike, and motorbikes include motorcycles, scooters, electric scooters, etc.

[0016] Also, the configurations, operations, etc. described below are examples, and the brake hydraulic control device and the saddle-riding type vehicle according to the present invention are not limited to such configurations, operations, etc. For example, in the following, the case where the brake hydraulic control device according to the present invention is a pump-less type is described. However, the brake hydraulic control device according to the present invention may be provided with a pump that assists the flow of the brake fluid. Also, in the following, the case where the brake system equipped with the brake hydraulic control device according to the present invention performs anti-lock brake control only on the braking force generated on the front wheels is described. However, the brake system equipped with the brake hydraulic control device according to the present invention may perform anti-lock brake control only on the braking force generated on the rear wheels, or may perform anti-lock brake control on both the braking force generated on the front wheels and the braking force generated on the rear wheels.

[0017] Also, in each figure, the same or similar members or parts are given the same reference numerals, or the assignment of reference numerals is omitted. Also, the illustration of the detailed structure is appropriately simplified or omitted. Also, duplicate explanations are appropriately simplified or omitted.

[0018] <Mounting of a Brake System Equipped with a Brake Hydraulic Control Device on a Bicycle> The mounting of a braking system equipped with a brake hydraulic control device according to the present embodiment on a bicycle will be described. FIG. 1 is a diagram showing a schematic configuration of a bicycle on which a braking system equipped with a brake hydraulic control device according to an embodiment of the present invention is mounted. In FIG. 1, the case where the bicycle 200 is a two-wheeled vehicle is shown, but the bicycle 200 may be another bicycle such as a tricycle.

[0019] A bicycle 200, which is an example of a saddle-riding type vehicle, includes a frame 210, a turning part 230, a saddle 218, pedals 219, a rear wheel 220, and a rear wheel braking part 260.

[0020] The frame 210 includes, for example, a head tube 211 that pivotally supports the steering column 231 of the turning part 230, a top tube 212 and a down tube 213 that are connected to the head tube 211, a seat tube 214 that is connected to the top tube 212 and the down tube 213 and holds the saddle 218, and stays 215 that are connected to the upper and lower ends of the seat tube 214 and hold the rear wheel 220 and the rear wheel braking part 260.

[0021] The turning part 230 includes a steering column 231, a handle stem 232 held by the steering column 231, a handlebar 233 held by the handle stem 232, a braking operation part 240 attached to the handlebar 233, a front fork 216 connected to the steering column 231, a front wheel 217 rotatably held by the front fork 216, and a front wheel braking part 250. The front fork 216 is provided on both sides of the front wheel 217. One end of the front fork 216 is connected to the steering column 231, and the other end is connected to the rotation center of the front wheel 217.

[0022] The braking operation unit 240 includes a mechanism used as an operation unit of the front wheel braking unit 250 and a mechanism used as an operation unit of the rear wheel braking unit 260. For example, the mechanism used as an operation unit of the front wheel braking unit 250 is disposed on the right end side of the handlebar 233, and the mechanism used as an operation unit of the rear wheel braking unit 260 is disposed on the left end side of the handlebar 233.

[0023] The bicycle 200 configured as described above is provided with the brake hydraulic control device 1. In the present embodiment, the brake hydraulic control device 1 is attached to the front fork 216 of the turning unit 230. The brake hydraulic control device 1 is a unit responsible for controlling the hydraulic pressure of the brake fluid of the front wheel braking unit 250. Note that the rear wheel braking unit 260 may be a type of braking unit that generates braking force by increasing the hydraulic pressure of the brake fluid, or may be a type of braking unit that mechanically generates braking force (for example, a type of braking unit that generates braking force by generating tension in a wire, etc.).

[0024] Further, the bicycle 200 is provided with a power supply unit 270 that serves as a power source for the brake hydraulic control device 1. The power supply unit 270 is attached to, for example, the down tube 213 of the frame 210. The power supply unit 270 may be a battery or a generator. The generator includes, for example, one that generates electricity by the running of the bicycle 200 (for example, a hub dynamo that generates electricity by the rotation of the front wheel 217 or the rear wheel 220, an electric motor that is a drive source of the front wheel 217 or the rear wheel 220 and generates regenerative power, etc.), one that generates electricity by sunlight, and the like.

[0025] That is, the bicycle 200 is equipped with a brake system 100 that includes at least the braking operation unit 240, the front wheel braking unit 250, the brake hydraulic control device 1, and the power supply unit 270. The brake system 100 can execute antilock brake control by controlling the hydraulic pressure of the brake fluid of the front wheel braking unit 250 by the brake hydraulic control device 1.

[0026] <Configuration of Brake System>

[0027] The configuration of the braking system according to the embodiment will be described. FIG. 2 is a diagram showing a schematic configuration of a braking system according to an embodiment of the present invention. The brake hydraulic control device 1 includes a base body 10. In the base body 10, a master cylinder port 11, a wheel cylinder port 12, and a flow path 13 that communicates the master cylinder port 11 and the wheel cylinder port 12 are formed.

[0028] The flow path 13 is a flow path for brake fluid. The flow path 13 includes a first flow path 14, a second flow path 15, a third flow path 16, and a fourth flow path 17. The master cylinder port 11 and the wheel cylinder port 12 communicate with each other via the first flow path 14 and the second flow path 15. Further, an end portion on the inlet side of the third flow path 16 is connected to an intermediate portion of the second flow path 15.

[0029] The brake operation unit 240 is connected to the master cylinder port 11 via a liquid pipe 101. The brake operation unit 240 includes a brake lever 241, a master cylinder 242, and a reservoir 243. The master cylinder 242 includes a piston portion (not shown) that moves in conjunction with the operation of the user of the brake lever 241, and is connected to the inlet side of the first flow path 14 via the liquid pipe 101 and the master cylinder port 11. By the movement of the piston portion, the hydraulic pressure of the brake fluid in the first flow path 14 increases or decreases. Further, the brake fluid of the master cylinder 242 is stored in the reservoir 243.

[0030] The front wheel brake unit 250 is connected to the wheel cylinder port 12 via the liquid pipe 102. The front wheel brake unit 250 includes a wheel cylinder 251 and a rotor 252. The wheel cylinder 251 is attached to the lower end of the front fork 216. The wheel cylinder 251 is provided with a piston portion (not shown) that moves in conjunction with the liquid pressure of the liquid pipe 102, and is connected to the outlet side of the second flow path 15 via the liquid pipe 102 and the wheel cylinder port 12. The rotor 252 is held by the front wheel 217 and rotates together with the front wheel 217. By the movement of the piston portion, a brake pad (not shown) is pressed against the rotor 252, thereby braking the front wheel 217.

[0031] Further, the brake hydraulic pressure control device 1 includes a hydraulic pressure adjustment valve 20 that opens and closes the flow path 13, and a coil 70 that drives the hydraulic pressure adjustment valve 20. In the present embodiment, the brake hydraulic pressure control device 1 includes an inlet valve 21 and an outlet valve 22 as the hydraulic pressure adjustment valve 20. The inlet valve 21 is provided between the outlet side of the first flow path 14 and the inlet side of the second flow path 15, and opens and closes the flow of the brake fluid between the first flow path 14 and the second flow path 15. The outlet valve 22 is provided between the outlet side of the third flow path 16 and the inlet side of the fourth flow path 17, and opens and closes the flow of the brake fluid between the third flow path 16 and the fourth flow path 17. The hydraulic pressure of the brake fluid is controlled by the opening and closing operations of the inlet valve 21 and the outlet valve 22.

[0032] Also, in the present embodiment, the brake hydraulic control device 1 includes, as coils 70, a coil 71 that drives the inlet valve 21 and a coil 73 that drives the outlet valve 22. For example, when the coil 71 is de-energized, the inlet valve 21 opens the flow of the brake fluid in both directions. When the coil 71 is energized, the inlet valve 21 closes to block the flow of the brake fluid. That is, in the present embodiment, the inlet valve 21 is a normally open solenoid valve. Also, for example, when the coil 73 is de-energized, the outlet valve 22 blocks the flow of the brake fluid. When the coil 73 is energized, the outlet valve 22 opens to allow the flow of the brake fluid in both directions. That is, in the present embodiment, the outlet valve 22 is a normally closed solenoid valve.

[0033] Further, the brake hydraulic control device 1 includes an accumulator 23. The accumulator 23 is connected to the outlet side of the fourth flow path 17, and stores the brake fluid that has passed through the outlet valve 22.

[0034] Also, the brake hydraulic control device 1 includes a hydraulic pressure sensor 103 for detecting the hydraulic pressure of the brake fluid in the wheel cylinder 251. The hydraulic pressure sensor 103 is provided in the second flow path 15 or the third flow path 16.

[0035] Also, the brake hydraulic control device 1 includes a control unit 30. Signals from various sensors such as the hydraulic pressure sensor 103 and a wheel speed sensor (not shown) for detecting the rotational speed of the front wheel 217 are input to the control unit 30. Note that each part of the control unit 30 may be arranged together or may be arranged dispersedly. The control unit 30 may be configured to include, for example, a microcomputer, a microprocessor unit, etc., or may be configured to include an updatable one such as firmware, or may be configured to include a program module executed by a command from a CPU or the like.

[0036] The control unit 30 controls the energization of the coils 71 and 73. Specifically, the control unit 30 controls the driving (opening and closing operation) of the inlet valve 21 by controlling the energization of the coil 71. Further, the control unit 30 controls the driving (opening and closing operation) of the outlet valve 22 by controlling the energization of the coil 73. That is, the control unit 30 controls the hydraulic pressure of the brake fluid in the wheel cylinder 251, that is, the braking force of the front wheel 217, by controlling the opening and closing operations of the inlet valve 21 and the outlet valve 22.

[0037] In the present embodiment, at least the configuration for controlling the energization of the coils 71 and 73 among the configurations of the control unit 30 is configured by a circuit board 31 described later. That is, the circuit board 31 controls the driving of the inlet valve 21 and the outlet valve 22 by controlling the energization of the coils 71 and 73.

[0038] For example, when the front wheel 217 is being braked by the operation of the brake lever 241 by the user, if the control unit 30 determines from the signal of a wheel speed sensor (not shown) that the front wheel 217 is locked or may be locked, the anti-lock brake control is started.

[0039] When the anti-lock brake control is started, the control unit 30 energizes the coil 71, closes the inlet valve 21, and blocks the flow of the brake fluid from the master cylinder 242 to the wheel cylinder 251, thereby suppressing the pressure increase of the brake fluid in the wheel cylinder 251. On the other hand, the control unit 30 energizes the coil 73, opens the outlet valve 22, and allows the flow of the brake fluid from the wheel cylinder 251 to the accumulator 23, thereby reducing the pressure of the brake fluid in the wheel cylinder 251. As a result, the lock of the front wheel 217 is released or avoided. When the control unit 30 determines from the signal of the hydraulic pressure sensor 103 that the brake fluid in the wheel cylinder 251 has been depressurized to a predetermined value, the control unit 30 de-energizes the coil 73 to close the outlet valve 22, and for a short period of time, de-energizes the coil 71 to open the inlet valve 21 to increase the pressure of the brake fluid in the wheel cylinder 251. The control unit 30 may increase and decrease the pressure of the wheel cylinder 251 only once, or may repeat it a plurality of times.

[0040] When the anti-lock brake control ends and the brake lever 241 is returned, the inside of the master cylinder 242 becomes an atmospheric pressure state, and the brake fluid in the wheel cylinder 251 is returned. Also, when the anti-lock brake control ends and the brake lever 241 is returned, the outlet valve 22 is opened. When the pressure of the brake fluid in the flow path 13 becomes lower than the pressure of the brake fluid stored in the accumulator 23, the brake fluid stored in the accumulator 23 is discharged out of the accumulator 23 at a boostless (i.e., pumpless) pressure and returns into the flow path 13, and eventually returns to the master cylinder 242.

[0041] <Configuration of the Brake Fluid Pressure Control Device> The brake fluid pressure control device 1 includes a base body 10, a coil 70, a circuit board 31, and a housing 40. Hereinafter, the configuration of the brake fluid pressure control device 1 according to the present embodiment will be described.

[0042] FIG. 3 is a cross-sectional view of a brake hydraulic control device according to an embodiment of the present invention. Specifically, the housing 40 of the brake hydraulic control device 1 includes a main body portion 50 and a lid 60. Further, as will be described later, the main body portion 50 includes a groove portion 52, and the lid 60 includes an insertion wall 61 inserted into the groove portion 52. FIG. 3 is a cross-sectional view of the housing 40 cut along a virtual plane parallel to the first direction, which is the direction in which the main body portion 50 and the lid 60 face each other, and passing through the insertion wall 61, the outer peripheral wall 54 of the groove portion 52, and the inner peripheral wall 55 of the groove portion 52. Hereinafter, the first direction, which is the direction in which the main body portion 50 and the lid 60 face each other, will be denoted as the first direction Y. Also, in the cross-sectional view shown in FIG. 3, the direction perpendicular to the first direction Y will be denoted as the second direction X. FIG. 4 is a view of the lid of the housing of the brake hydraulic control device according to the embodiment of the present invention as seen from the side of the main body portion of the housing. In FIG. 4, the shape of the opening of the groove portion 52 of the main body portion 50 is shown by a two-dot chain line, which is an imaginary line.

[0043] The base body 10 is, for example, a substantially rectangular parallelepiped member made of an aluminum alloy. Each surface of the base body 10 may be flat, may include a curved portion, or may include a step. Coils 71 and 73, which are coils 70, are erected on the surface 18 of the base body 10.

[0044] Specifically, as described above, the brake hydraulic control device 1 according to the present embodiment includes an inlet valve 21 and an outlet valve 22 as a hydraulic adjustment valve 20. On the other hand, recesses 24 and 25 are formed in the base body 10. In the recess 24, the outlet side of the first flow path 14 communicates with the inlet side of the second flow path 15, and the inlet valve 21 is provided movably. Then, as the inlet valve 21 moves within the recess 24, the flow of the brake fluid between the first flow path 14 and the second flow path 15 is opened and closed. Further, in the recess 25, the outlet side of the third flow path 16 communicates with the inlet side of the fourth flow path 17, and the outlet valve 22 is provided movably. Then, as the outlet valve 22 moves within the recess 25, the flow of the brake fluid between the third flow path 16 and the fourth flow path 17 is opened and closed. In a state where the inlet valve 21 is provided in the recess 24, a part of the inlet valve 21 protrudes from the surface 18 of the base body 10 to the outside. The coil 71 that drives the inlet valve 21 is erected on the surface 18 of the base body 10 so as to surround the protruding portion of the inlet valve 21. Similarly, in a state where the outlet valve 22 is provided in the recess 25, a part of the outlet valve 22 protrudes from the surface 18 of the base body 10 to the outside. The coil 73 that drives the outlet valve 22 is erected on the surface 18 of the base body 10 so as to surround the protruding portion of the outlet valve 22.

[0045] A circuit board 31 that controls the energization of the coil 71 and the coil 73 is electrically connected to the coil 71 and the coil 73. In the present embodiment, the circuit board 31 is electrically connected to the coil 71 via a connection terminal 72 and is electrically connected to the coil 73 via a connection terminal 74.

[0046] The housing 40 is connected to the base body 10 and covers the coil 70 and the circuit board 31. In the present embodiment, the housing 40 is connected to the surface 18 of the base body 10. Further, as described above, the brake hydraulic control device 1 according to the present embodiment includes a hydraulic sensor 103. In the present embodiment, the hydraulic sensor 103 is also covered by the housing 40.

[0047] As described above, this housing 40 includes a main body portion 50 and a lid 60. The main body portion 50 is connected to the housing 40. Further, an opening 51 is formed in the main body portion 50. The opening 51 is used, for example, when storing the circuit board 31 or the like in the housing 40. In the present embodiment, the opening 51 is, for example, substantially rectangular and is formed at a position facing the circuit board 31. The lid 60 covers the opening 51 and is attached to the main body portion 50. Further, in order to prevent moisture or the like from entering the housing 40 between the main body portion 50 and the lid 60, the housing 40 improves the airtightness between the main body portion 50 and the lid 60 by the following configuration.

[0048] FIG. 5 is an enlarged view of part A in FIG. 3. In FIG. 5, the left side of the drawing is the outside of the housing 40, and the right side of the drawing is the inside of the housing 40. That is, in FIG. 5, the left side of the drawing is the outside of the brake hydraulic pressure control device 1.

[0049] The main body portion 50 includes a groove portion 52 that opens toward the lid 60 on the outer peripheral side of the opening 51. As shown in FIG. 4, in the present embodiment, the shape of the opening of the groove portion 52 is a substantially rectangular frame shape corresponding to the shape of the opening 51 when viewed from the lid 60 side. This groove portion 52 includes a bottom portion 53, an outer peripheral wall 54 that constitutes the wall on the outer peripheral side of the groove portion 52 and extends from the bottom portion 53 toward the lid 60, and an inner peripheral wall 55 that constitutes the wall on the inner peripheral side of the groove portion 52 and extends from the bottom portion 53 toward the lid 60. Further, the length of the outer peripheral wall 54 in the first direction Y is longer than the length of the inner peripheral wall 55 in the first direction Y.

[0050] On one hand, the lid 60 extends toward the main body 50 and has an insertion wall 61 inserted into the groove 52. As shown in FIG. 4, in this embodiment, the shape of the insertion wall 61 is a substantially rectangular frame shape corresponding to the shape of the groove 52 when viewed from the main body 50 side. In a state where the insertion wall 61 is inserted into the groove 52, a space 80 is formed between the outer peripheral wall 54 and the insertion wall 61, and between the inner peripheral wall 55 and the insertion wall 61. This space 80 is a space where the sealing material is stored. Then, by sealing the space between the groove 52 and the insertion wall 61 with the sealing material stored in the space 80, the housing 40 according to this embodiment improves the airtightness between the main body 50 and the lid 60. In this embodiment, a space 80 where the sealing material is stored is also formed between the bottom 53 of the groove 52 and the insertion wall 61.

[0051] When attaching the lid 60 to the main body 50 of the housing 40 configured as described above, first, the groove 52 of the main body 50 is filled with a sealing material. Then, the insertion wall 61 of the lid 60 is inserted into the groove 52 filled with the sealing material. As a result, the sealing material in the groove 52 is pushed against the insertion wall 61 and flows between the outer peripheral wall 54 and the insertion wall 61, and between the inner peripheral wall 55 and the insertion wall 61. Then, the sealing material is stored between the outer peripheral wall 54 and the insertion wall 61, and between the inner peripheral wall 55 and the insertion wall 61, and the space between the groove 52 and the insertion wall 61 is sealed with the sealing material.

[0052] Incidentally, in the housing of a conventional brake hydraulic control device as well, there is known one in which the airtightness between the main body and the lid is improved by a groove provided in the main body and an insertion wall provided on the lid and inserted into the groove of the main body. Hereinafter, a conventional brake hydraulic control device having such a housing will be described. When describing the conventional brake hydraulic control device below, for the components having the same configuration as those of the brake hydraulic control device 1 according to this embodiment, the reference numerals of the components of the brake hydraulic control device 1 according to this embodiment will be appended with "300".

[0053] FIG. 6 is a cross-sectional view of a main part showing the periphery of a groove portion of a main body portion of a housing in a conventional brake hydraulic control device. This FIG. 6 is a view obtained by cutting the conventional brake hydraulic control device 301 in the same cross-section as in FIG. 3 and observing the same position as part A in FIG. 3. For this reason, in FIG. 6, the left side of the drawing is the outside of the conventional housing 340, and the right side of the drawing is the inside of the conventional housing 340. That is, in FIG. 6, the left side of the drawing is the outside of the conventional brake hydraulic control device 301.

[0054] The main body portion 350 of the housing 340 of the conventional brake hydraulic control device 301 is provided with a groove portion 352 that opens toward the lid 360 of 340 on the outer peripheral side of the opening portion 351, similarly to the main body portion 50 according to the present embodiment. Here, the difference between the groove portion 352 and the groove portion 52 according to the present embodiment is that the length of the outer peripheral wall 354 in the first direction Y is not longer than the length of the inner peripheral wall 355 in the first direction Y. Further, the lid 360 of the housing 340 of the conventional brake hydraulic control device 301 is provided with an insertion wall 361 that extends toward the main body portion 350 and is inserted into the groove portion 352, similarly to the lid 60 according to the present embodiment. Further, in a state where the insertion wall 361 is inserted into the groove portion 352, a space for storing a sealing material is formed between the outer peripheral wall 354 and the insertion wall 361, and between the inner peripheral wall 355 and the insertion wall 361.

[0055] The attachment of the lid 360 to the main body portion 350 is the same as that of the housing 40 according to the present embodiment, and the groove portion 352 of the main body portion 350 is filled with a sealing material. Then, the insertion wall 361 of the lid 360 is inserted into the groove portion 352 filled with the sealing material. Here, when spaces are formed on both sides between the outer peripheral wall 354 and the insertion wall 361 and between the inner peripheral wall 355 and the insertion wall 361, depending on the insertion position and insertion depth of the insertion wall 361 into the groove portion 352, the amount of the sealing material flowing to the outer peripheral wall 354 side and the amount of the sealing material flowing to the inner peripheral wall 355 side will be different. That is, depending on the insertion position and insertion depth of the insertion wall 361 into the groove portion 352, the amount of the sealing material flowing to the outer peripheral wall 354 side may be more than the assumed amount.

[0056] At this time, as described above, in the housing 340 of the conventional brake hydraulic control device 301, the length of the outer peripheral wall 354 in the first direction Y is not longer than the length of the inner peripheral wall 355 in the first direction Y. For this reason, in the conventional brake hydraulic control device 301, when the amount of the sealing material flowing to the outer peripheral wall 354 side increases, the sealing material filled in the groove portion 352 may leak to the outside of the outer peripheral wall 354 (for example, the location B shown in FIG. 6). For this reason, in the conventional brake hydraulic control device 301, in order to suppress the leakage of the sealing material to the outside of the brake hydraulic control device 301, a wall portion 362 surrounding the outside of the outer peripheral wall 354 is provided on the lid. For this reason, the conventional brake hydraulic control device 301 becomes larger in the second direction X by the amount of the wall portion 362, and it is difficult to miniaturize.

[0057] On the other hand, in the brake hydraulic control device 1 according to the present embodiment, as described above, in the groove portion 52 of the main body portion 50 of the housing 40, the length of the outer peripheral wall 54 in the first direction Y is longer than the length of the inner peripheral wall 55 in the first direction Y. For this reason, in the brake hydraulic control device 1 according to the present embodiment, even when the amount of the sealing material flowing to the outer peripheral wall 54 side increases, the sealing material that leaks to the outside of the outer peripheral wall 354 in the conventional brake hydraulic control device 301 can be stored between the outer peripheral wall 54 of the groove portion 52 and the insertion wall 61. That is, in the brake hydraulic control device 1 according to the present embodiment, even if it does not include the wall portion 362 provided in the lid 360 of the conventional brake hydraulic control device 301, it is possible to suppress the leakage of the sealing material to the outside of the brake hydraulic control device 1. For this reason, the brake hydraulic control device 1 according to the present embodiment can suppress the leakage of the sealing material to the outside of the brake hydraulic control device 1 while suppressing an increase in size in the second direction X.

[0058] Here, conventionally, in the brake hydraulic control device, a coil that drives a hydraulic pressure adjustment valve and a circuit board that controls energization to the coil are housed inside the housing. For this reason, originally, the housing of the brake hydraulic control device requires a certain length in the direction in which the main body part and the lid face each other. Therefore, even if the length of the outer peripheral wall 54 in the first direction Y is made longer than the length of the inner peripheral wall 55 in the first direction Y as in the present embodiment, the brake hydraulic control device 1 according to the present embodiment does not become larger in the first direction Y compared to the conventional brake hydraulic control device. Therefore, the brake hydraulic control device 1 according to the present embodiment can be made smaller compared to the conventional brake hydraulic control device that improves the airtightness between the main body part and the lid in the housing and suppresses the sealant from leaking to the outside of the brake hydraulic control device.

[0059] <Effect of Brake Hydraulic Control Device> The effect of the brake hydraulic control device according to the embodiment will be described.

[0060] The brake hydraulic pressure control device 1 according to this embodiment includes a base body 10 in which a flow path 13 for brake fluid is formed, a coil 70 that stands on the base body 10 and drives a hydraulic pressure adjustment valve 20 that opens and closes the flow path 13, a circuit board 31 that controls energization to the coil 70, and a housing 40 that is connected to the base body 10 and covers the coil 70 and the circuit board 31. The housing 40 includes a main body portion 50 that is connected to the base body 10 and has an opening 51 formed therein, and a lid 60 that covers the opening 51 and is attached to the main body portion 50. The main body portion 50 has a groove portion 52 that opens toward the lid 60 on the outer peripheral side of the opening 51. The lid 60 has an insertion wall 61 that extends toward the main body portion 50 and is inserted into the groove portion 52. And, in the brake hydraulic pressure control device 1, the space between the groove portion 52 and the insertion wall 61 is sealed with a sealing material. The brake hydraulic pressure control device 1 is, for example, a brake hydraulic pressure control device for a saddle-riding type vehicle such as a bicycle 200. The groove portion 52 includes a bottom portion 53, an outer peripheral wall 54 that forms the wall on the outer peripheral side of the groove portion 52 and extends from the bottom portion 53 toward the lid 60, and an inner peripheral wall 55 that forms the wall on the inner peripheral side of the groove portion 52 and extends from the bottom portion 53 toward the lid 60. Also, a space 80 in which a sealing material is stored is formed between the outer peripheral wall 54 and the insertion wall 61 and between the inner peripheral wall 55 and the insertion wall 61. Further, the length of the outer peripheral wall 54 in the first direction Y is longer than the length of the inner peripheral wall 55 in the first direction Y.

[0061] In the brake hydraulic pressure control device 1 according to this embodiment, the length of the outer peripheral wall 54 in the first direction Y is longer than the length of the inner peripheral wall 55 in the first direction Y. Therefore, as described above, the brake hydraulic pressure control device 1 according to this embodiment can suppress the leakage of the sealing material to the outside of the brake hydraulic pressure control device 1 while suppressing the increase in size in the second direction X. Also, as described above, the brake hydraulic pressure control device 1 according to this embodiment does not increase in size in the first direction Y compared to the conventional brake hydraulic pressure control device. Therefore, the brake hydraulic pressure control device 1 according to this embodiment can improve the airtightness between the main body portion and the lid in the housing, and can be made smaller compared to the conventional brake hydraulic pressure control device that aims to suppress the leakage of the sealing material to the outside of the brake hydraulic pressure control device.

[0062] Also, as described above, the brake hydraulic control device 1 according to the present embodiment does not require the wall portion 362 provided in the lid 360 of the conventional brake hydraulic control device 301. This wall portion 362 may hinder the improvement of the aesthetics of the brake hydraulic control device 301. That is, the brake hydraulic control device 1 according to the present embodiment can improve the aesthetics compared to the conventional brake hydraulic control device 301 provided with the wall portion 362.

[0063] Preferably, the brake hydraulic control device 1 according to the present embodiment is mounted on a saddle-type vehicle such as a bicycle 200. Compared with vehicles such as automobiles, saddle-type vehicles have a lower degree of freedom in component layout and a lower degree of freedom in mounting a brake hydraulic control device. For this reason, when mounting a brake hydraulic control device that improves the airtightness between the main body portion and the lid in the housing and suppresses the leakage of the sealing material to the outside of the brake hydraulic control device on a saddle-type vehicle, the brake hydraulic control device 1 according to the present embodiment that can be made smaller than before is suitable. In addition, compared with vehicles such as automobiles, the brake hydraulic control device is more visible from the outside in a saddle-type vehicle. Therefore, by mounting the brake hydraulic control device 1 according to the present embodiment that can suppress the leakage of the sealing material to the outside of the brake hydraulic control device on a saddle-type vehicle, it is possible to suppress the deterioration of the aesthetics of the saddle-type vehicle.

[0064] <Modification Example> FIG. 7 is a cross-sectional view of a main part showing the periphery of a groove portion of a main body portion of a housing in a modification example of a brake hydraulic control device according to an embodiment of the present invention. This FIG. 7 is a view obtained by cutting a modification example of the brake hydraulic control device 1 in the same cross-section as FIG. 3 and observing the same position as part A in FIG. 3. For this reason, in FIG. 7, the left side of the drawing is the outside of the housing 40, and the right side of the drawing is the inside of the housing 40. That is, in FIG. 7, the left side of the drawing is the outside of the modification example of the brake hydraulic control device 1.

[0065] In FIGS. 1 to 5, the configuration between the bottom portion 53 of the groove portion 52 and the insertion wall 61 was not particularly mentioned. It is preferable that the configuration between the bottom portion 53 of the groove portion 52 and the insertion wall 61 be configured as shown in FIG. 7, for example. Here, when explaining the configuration between the bottom portion 53 of the groove portion 52 and the insertion wall 61, in the cross section shown in FIG. 7, a center line 64, an outer peripheral side straight line 65, an inner peripheral side straight line 66, an outer peripheral side region 81, and an inner peripheral side region 82 are defined as follows. At the root portion 63 of the insertion region 62, which is a region located inside the groove portion 52 of the insertion wall 61, a straight line passing through the center point in the second direction X and parallel to the first direction Y is defined as the center line 64. A straight line passing through the point on the outermost peripheral wall 54 side in the insertion region 62 and parallel to the first direction Y is defined as the outer peripheral side straight line 65. A straight line passing through the point on the innermost peripheral wall 55 side in the insertion region 62 and parallel to the first direction Y is defined as the inner peripheral side straight line 66. A region surrounded by the insertion wall 61, the center line 64, the outer peripheral side straight line 65, and the bottom portion 53 of the groove portion 52 is defined as the outer peripheral side region 81. A region surrounded by the insertion wall 61, the center line 64, the inner peripheral side straight line 66, and the bottom portion 53 of the groove portion 52 is defined as the inner peripheral side region 82.

[0066] When the outer peripheral side region 81 and the inner peripheral side region 82 are defined in this way, it is preferable that the area of the inner peripheral side region 82 be larger than the area of the outer peripheral side region 81. In FIG. 7, the area of the inner peripheral side region 82 is made larger than the area of the outer peripheral side region 81 by making the insertion region 62 an asymmetric shape with the center line 64 as the axis of symmetry. By making the area of the inner peripheral side region 82 larger than the area of the outer peripheral side region 81, when the insertion wall 61 of the lid 60 is inserted into the groove portion 52 filled with the sealing material, the pressure generated in the sealing material existing in the outer peripheral side region 81 is larger than the pressure generated in the sealing material existing in the inner peripheral side region 82. As a result, when the insertion wall 61 is inserted into the groove portion 52 filled with the sealing material, the sealing material in the groove portion 52 tends to flow toward the inner peripheral wall 55 side rather than the outer peripheral wall 54 side. Therefore, by making the area of the inner peripheral side region 82 larger than the area of the outer peripheral side region 81, it is possible to further suppress the leakage of the sealing material to the outside of the brake fluid pressure control device 1.

[0067] In the modification of the brake hydraulic control device 1 shown in FIG. 7, an inclined portion formed as a flat surface is provided at the tip inner peripheral portion of the insertion wall 61, so that the area of the inner peripheral side region 82 is made larger than the area of the outer peripheral side region 81. However, this shape is merely an example.

[0068] FIGS. 8 and 9 are views showing an example of another shape of the insertion wall in a modification of the brake hydraulic control device according to an embodiment of the present invention. These views are views obtained by cutting a modification of the brake hydraulic control device 1 in the same cross section as in FIG. 3 and observing the same position as the A portion in FIG. 3. For this reason, in these views, the left side of the drawing is the outside of the housing 40, and the right side of the drawing is the inside of the housing 40. That is, in these views, the left side of the drawing is the outside of the modification of the brake hydraulic control device 1.

[0069] For example, as shown in FIG. 8, even if an inclined portion formed as a curved surface is provided at the tip inner peripheral portion of the insertion wall 61, the insertion region 62 can be made asymmetric with the center line 64 as the axis of symmetry, and the area of the inner peripheral side region 82 can be made larger than the area of the outer peripheral side region 81. In FIG. 8, the inclined portion is formed as a curved surface that protrudes toward the bottom 53 of the groove portion 52, but the inclined portion may be formed as a curved surface that protrudes on the side opposite to the bottom 53 of the groove portion 52. Even if the inclined portion is formed in this way, the insertion region 62 can be made asymmetric with the center line 64 as the axis of symmetry, and the area of the inner peripheral side region 82 can be made larger than the area of the outer peripheral side region 81. Also, for example, as shown in FIG. 9, even if at least one stepped portion is formed at the tip inner peripheral portion of the insertion wall 61, the insertion region 62 can be made asymmetric with the center line 64 as the axis of symmetry, and the area of the inner peripheral side region 82 can be made larger than the area of the outer peripheral side region 81. Regardless of the shape of the tip inner peripheral portion of the insertion wall 61, if the area of the inner peripheral side region 82 is larger than the area of the outer peripheral side region 81, when the insertion wall 61 is inserted into the groove portion 52 filled with the sealing material, the sealing material in the groove portion 52 easily flows toward the inner peripheral wall 55 side, and it is possible to further suppress the sealing material from leaking to the outside of the brake hydraulic control device 1.

[0070] FIG. 10 is a cross-sectional view of a main part showing the periphery of a groove portion of a main body portion of a housing in a modified example of a brake hydraulic control device according to an embodiment of the present invention. This FIG. 10 is a view obtained by cutting a modified example of the brake hydraulic control device 1 in the same cross-section as FIG. 3 and observing the same position as part A in FIG. 3. Therefore, in FIG. 10, the left side of the drawing is the outside of the housing 40, and the right side of the drawing is the inside of the housing 40. That is, in FIG. 10, the left side of the drawing is the outside of the modified example of the brake hydraulic control device 1. Further, FIG. 11 is a view of the lid of the housing of the brake hydraulic control device shown in FIG. 10 as viewed from the side of the main body portion of the housing. In FIG. 11, the shape of the opening of the groove portion 52 of the main body portion 50 is shown by a two-dot chain line which is an imaginary line. The brake hydraulic control device 1 preferably includes at least one of a first positioning portion 91 and a second positioning portion 92.

[0071] The first positioning portion 91 positions the main body portion 50 and the lid 60 of the housing 40 in a direction perpendicular to the first direction Y. When inserting the insertion wall 61 into the groove portion 52 filled with the sealing material, when spaces are formed between the outer peripheral wall 54 and the insertion wall 61 and between the inner peripheral wall 55 and the insertion wall 61, if the insertion position of the insertion wall 61 into the groove portion 52 varies, the amount of the sealing material flowing to the outer peripheral wall 54 side and the amount of the sealing material flowing to the inner peripheral wall 55 side will also vary. Here, by providing the first positioning portion 91, the insertion position of the insertion wall 61 into the groove portion 52 is stabilized, so that the amount of the sealing material flowing to the outer peripheral wall 54 side is also stabilized. Therefore, by providing the first positioning portion 91, it is possible to further suppress the sealing material from leaking to the outside of the brake hydraulic control device 1.

[0072] Here, as shown in FIGS. 10 and 11, the first positioning portion 91 is a protrusion, and it is preferably disposed between the outer peripheral wall 54 and the insertion wall 61. By using the outer peripheral wall 54 that is long in the first direction Y to position the main body portion 50 and the lid 60 in a direction perpendicular to the first direction Y, the insertion position of the insertion wall 61 into the groove portion 52 becomes more stable, and further leakage of the sealing material to the outside of the brake hydraulic control device 1 can be suppressed. Further, when the first positioning portion 91 is a protrusion disposed between the outer peripheral wall 54 and the insertion wall 61, as shown in FIGS. 10 and 11, the first positioning portion 91 is preferably fixed to the insertion wall 61 of the lid 60. When the first positioning portion 91 is fixed to the insertion wall 61 of the lid 60, when filling the groove portion 52 of the main body portion 50 with the sealing material, the first positioning portion 91 that becomes an obstacle when filling the sealing material does not exist around the groove portion 52. Therefore, when the first positioning portion 91 is fixed to the insertion wall 61 of the lid 60, the filling amount of the sealing material at each position in the groove portion 52 is stabilized, and further leakage of the sealing material to the outside of the brake hydraulic control device 1 can be suppressed.

[0073] Note that the number of protrusions serving as the first positioning portion 91 is not limited to the number shown in FIGS. 10 and 11, and is arbitrary as long as the main body portion 50 and the lid 60 can be positioned in a direction perpendicular to the first direction Y. Further, the effects of the first positioning portion 91 described above are effects obtained regardless of whether the brake hydraulic control device 1 includes the second positioning portion 92.

[0074] The second positioning portion 92 positions the main body portion 50 and the lid 60 of the housing 40 in the first direction Y. When inserting the insertion wall 61 into the groove portion 52 filled with the sealing material, if the insertion depth of the insertion wall 61 into the groove portion 52 varies, the amount of the sealing material flowing to the outer peripheral wall 54 side also varies. Here, by providing the second positioning portion 92, the insertion depth of the insertion wall 61 into the groove portion 52 is stabilized, so that the amount of the sealing material flowing to the outer peripheral wall 54 side is also stabilized. Therefore, by providing the second positioning portion 92, leakage of the sealing material to the outside of the brake hydraulic control device 1 can be further suppressed.

[0075] Here, as shown in FIGS. 10 and 11, the second positioning portion 92 is a protrusion, and it is preferably disposed between the end of the outer peripheral wall 54 and the lid 60. By disposing the second positioning portion 92 at this position, the second positioning portion 92 functions as a wall portion that restricts the flow of the sealing material that is about to leak from the inside of the groove portion 52 to the outside of the outer peripheral wall 54. Therefore, by disposing the second positioning portion 92 at this position, it is possible to further suppress the leakage of the sealing material to the outside of the brake hydraulic control device 1. Further, when the second positioning portion 92 is a protrusion disposed between the end of the outer peripheral wall 54 and the lid 60, as shown in FIGS. 10 and 11, the second positioning portion 92 is preferably fixed to the lid 60 and in contact with the end of the outer peripheral wall 54. When the second positioning portion 92 is fixed to the lid 60, when filling the groove portion 52 of the main body portion 50 with the sealing material, the second positioning portion 92 that becomes an obstacle when filling the sealing material does not exist around the groove portion 52. Therefore, when the second positioning portion 92 is fixed to the lid 60, the filling amount of the sealing material at each position in the groove portion 52 is stabilized, and thus it is possible to further suppress the leakage of the sealing material to the outside of the brake hydraulic control device 1.

[0076] Note that the number of protrusions that serve as the second positioning portion 92 is not limited to the number shown in FIGS. 10 and 11, and is arbitrary as long as the main body portion 50 and the lid 60 can be positioned in the first direction Y. Further, the effects of the second positioning portion 92 described above are effects obtained regardless of whether the brake hydraulic control device 1 includes the first positioning portion 91.

[0077] As described above, the brake hydraulic control device 1 according to the present embodiment has been described. However, the brake hydraulic control device according to the present invention is not limited to the description of the present embodiment, and may be implemented by appropriately combining only a part of the configurations described in the present embodiment.

Description of Reference Numerals

[0078] 1 Brake hydraulic control device, 10 Base body, 11 Master cylinder port, 12 Wheel cylinder port, 13 Flow path, 14 First flow path, 15 Second flow path, 16 Third flow path, 17 Fourth flow path, 18 Surface, 20 Hydraulic adjustment valve, 21 Inlet valve, 22 Outlet valve, 23 Accumulator, 24 Recess, 25 Recess, 30 Control unit, 31 Circuit board, 40 Housing, 50 Body part, 51 Opening, 52 Groove part, 53 Bottom part, 54 Outer peripheral wall, 55 Inner peripheral wall, 60 Cover, 61 Insertion wall, 62 Insertion region, 63 Root part, 64 Center line, 65 Outer peripheral side straight line, 66 Inner peripheral side straight line, 70 Coil, 71 Coil, 72 Connection terminal, 73 Coil, 74 Connection terminal, 80 Space, 81 Outer peripheral side region, 82 Inner peripheral side region, 91 First positioning part, 92 Second positioning part, 100 Brake system, 101 Liquid pipe, 102 Liquid pipe, 103 Hydraulic sensor, 200 Bicycle, 210 Frame, 211 Head tube, 212 Top tube, 213 Down tube, 214 Seat tube, 215 Stay, 216 Front fork, 217 Front wheel, 218 Saddle, 219 Pedal, 220 Rear wheel, 230 Swivel part, 231 Steering column, 232 Handle stem, 233 Handlebar, 240 Braking operation part, 241 Brake lever, 242 Master cylinder, 243 Reservoir, 250 Front wheel braking part, 251 Wheel cylinder, 252 Rotor, 260 Rear wheel braking part, 270 Power supply unit, 301 Brake hydraulic control device (conventional), 340 Housing (conventional), 350 Body part (conventional), 351 Opening (conventional), 352 Groove part (conventional), 354 Outer peripheral wall (conventional), 355 Inner peripheral wall (conventional), 360 Cover (conventional), 361 Insertion wall (conventional), 362 Wall part (conventional).

Claims

【Claim 1】 A base body (10) in which a brake fluid passage (13) is formed, a coil (70) that stands on the base body (10) and drives a hydraulic control valve (20) for opening and closing the passage (13), a circuit board (31) for controlling energization of the coil (70), a housing (40) connected to the base body (10) and covering the coil (70) and the circuit board (31), characterized in that it comprises: the housing (40) includes: a main body portion (50) connected to the base body (10) and having an opening (51) formed therein, a lid (60) covering the opening (51) and attached to the main body portion (50), characterized in that it comprises: the main body portion (50) has a groove portion (52) that opens toward the lid (60) on the outer peripheral side of the opening (51), the lid (60) has an insertion wall (61) that extends toward the main body portion (50) and is inserted into the groove portion (52), a brake fluid pressure control device (1) for a straddle-type vehicle (200), wherein a space between the groove portion (52) and the insertion wall (61) is sealed with a sealing material, the groove portion (52) includes: a bottom portion (53), an outer peripheral wall (54) that forms the wall on the outer peripheral side of the groove portion (52) and extends from the bottom portion (53) toward the lid (60), an inner peripheral wall (55) that forms the wall on the inner peripheral side of the groove portion (52) and extends from the bottom portion (53) toward the lid (60), characterized in that it comprises: a space (80) is formed that extends from between the outer peripheral wall (54) and the insertion wall (61), through between the bottom portion (53) and the insertion wall (61), to between the inner peripheral wall (55) and the insertion wall (61), and is filled with the sealing material, a first direction (Y) is defined as the direction in which the main body portion (50) and the lid (60) face each other, a second direction (X) is defined as a direction perpendicular to the first direction (Y), when an end portion of the outer peripheral wall (54) on the side farther from the bottom portion (53) in the first direction (Y) is defined as a top portion, the space (80) is connected to a gap formed between the lid (60) and the top portion of the outer peripheral wall (54), in the second direction (X), the outside of the gap is not covered by the lid (60), the length of the outer peripheral wall (54) in the first direction (Y) is longer than the length of the inner peripheral wall (55) in the first direction (Y), furthermore, the lid (60) includes a second positioning portion (92) for positioning the main body portion (50) and the lid (60) in the first direction (Y). The second positioning portion (92) projects from the lid (60) toward the top of the outer peripheral wall (54), is disposed between the top and the lid (60), and is a protrusion (92) that contacts the top. Brake hydraulic control device (1). **Claim 2** In a cross-section obtained by cutting the housing (40) with a virtual plane that is parallel to the first direction (Y) and passes through the insertion wall (61), the outer peripheral wall (54), and the inner peripheral wall (55), A straight line parallel to the first direction (Y) passing through the center point in the second direction (X) at the root (63) of the insertion region (62), which is a region located inside the groove portion (52) of the insertion wall (61), is defined as the center line (64), A straight line parallel to the first direction (Y) passing through the point on the insertion region (62) closest to the outer peripheral wall (54) is defined as the outer peripheral side straight line (65), A straight line parallel to the first direction (Y) passing through the point on the insertion region (62) closest to the inner peripheral wall (55) is defined as the inner peripheral side straight line (66), A region surrounded by the insertion wall (61), the center line (64), the outer peripheral side straight line (65), and the bottom portion (53) is defined as the outer peripheral side region (81), When a region surrounded by the insertion wall (61), the center line (64), the inner peripheral side straight line (66), and the bottom portion (53) is defined as the inner peripheral side region (82), The area of the inner peripheral side region (82) is larger than the area of the outer peripheral side region (81). The brake hydraulic control device (1) according to claim 1. **Claim 3** The insertion region (62) has an asymmetric shape with the center line (64) as the axis of symmetry. The brake hydraulic control device (1) according to claim 2. **Claim 4** A first positioning portion (91) for positioning the main body portion (50) and the lid (60) in the second direction (X) is provided. The brake hydraulic control device (1) according to any one of claims 1 to 3. **Claim 5** The first positioning portion (91) is a protrusion and is disposed between the outer peripheral wall (54) and the insertion wall (61). The brake hydraulic control device (1) according to claim 4. **Claim 6** The first positioning portion (91) is fixed to the insertion wall (61). The brake hydraulic control device (1) according to claim 5. **Claim 7** A saddle-riding type vehicle (200) includes the brake hydraulic control device (1) according to any one of claims 1 to 6. Saddle-riding type vehicle (200).

Images