Brake hydraulic pressure control device and straddle-type vehicle

Abstract

This invention provides a brake hydraulic control device for a motorcycle, which improves the airtightness between the main body and the cover within the housing and prevents leakage of sealing material to the outside of the brake hydraulic control device, while also achieving miniaturization compared to conventional devices. The brake hydraulic control device of this invention includes a housing that covers the winding of a hydraulic regulating valve for opening and closing the flow path of the brake fluid and a circuit board for controlling the energization of the winding. The housing includes a main body with an opening and a cover that covers the opening and is mounted on the main body. The main body has a groove on the outer periphery of the opening, and the cover has an insertion wall that inserts into the groove. Spaces for storing sealing material are formed between the outer periphery of the groove and the insertion wall, and between the inner periphery of the groove and the insertion wall. The length of the outer periphery extending toward the cover is longer than the length of the inner periphery extending toward the cover.

Description

Technical Field

[0001] This invention relates to a brake hydraulic control device for a straddle-type vehicle and a straddle-type vehicle equipped with the brake hydraulic control device. Background Technology

[0002] In conventional motorcycles and similar vehicles, there are vehicles equipped with a brake hydraulic control device for performing anti-lock braking (ABS). This brake hydraulic control device increases or decreases the pressure of the brake fluid in the brake fluid circuit and adjusts the braking force generated on the wheels when the rider operates the brake lever or other input components. Such a brake hydraulic control device is a modular system comprising a flow path that forms part of the brake fluid circuit, a winding that drives a hydraulic regulating valve to open and close the flow path, and a circuit board that controls the energization of the winding.

[0003] Specifically, the modular brake hydraulic control device includes: a base having a flow path for brake fluid; a winding erected on the base, and a hydraulic regulating valve that drives the opening and closing of the brake fluid flow path; a circuit board that controls the energization of the winding; and a housing connected to the base, covering the winding and the circuit board. Furthermore, the housing includes a main body and a cover. The main body is connected to the base. Additionally, the main body has an opening for housing the circuit board and the like within the housing. The cover is mounted on the main body, covering the opening of the main body (see, for example, Patent Document 1).

[0004] In conventional modular brake hydraulic control devices, a brake hydraulic control device has been proposed that improves the airtightness between the main body and the cover within the housing to prevent moisture and other substances from intruding into the housing. Specifically, the conventional brake hydraulic control device that improves the airtightness between the main body and the cover within the housing has the following structure: The main body has a groove portion on the outer periphery of the opening that faces the opening of the cover. On the other hand, the cover has an insertion wall that extends toward the main body and inserts into the groove portion. Furthermore, the groove portion and the aforementioned insertion wall are sealed with a sealing material.

[0005] In conventional brake hydraulic control devices that improve airtightness between the main body and the cover within the housing, sealing material is filled into a groove in the main body when the cover is installed, and then the insert wall of the cover is inserted into the groove. However, when the insert wall of the cover is inserted into the groove, there is a possibility that the sealing material filling the groove leaks to the outside of the outer peripheral wall of the groove. In other words, when the insert wall of the cover is inserted into the groove, there is a possibility that the sealing material filling the groove leaks to the outside of the brake hydraulic control device. Therefore, in conventional brake hydraulic control devices that improve airtightness between the main body and the cover within the housing, a brake hydraulic control device is proposed that provides a wall portion surrounding the outer peripheral wall of the groove (the portion where the sealing material leaks to the outside of the brake hydraulic control device) on the cover, thereby suppressing the leakage of sealing material to the outside of the brake hydraulic control device.

[0006] Patent document 1: Japanese Patent Application Publication No. 2014-069779.

[0007] As described above, conventional brake hydraulic control devices that improve airtightness between the main body and the cover within the housing and prevent leakage of sealing material to the outside of the brake hydraulic control device rely on a large amount of wall portion disposed on the outer periphery of the main body in a direction perpendicular to the opposing directions of the main body and the cover. Therefore, conventional brake hydraulic control devices that improve airtightness between the main body and the cover within the housing and prevent leakage of sealing material to the outside of the brake hydraulic control device have the problem of being difficult to miniaturize. Summary of the Invention

[0008] This invention was made in response to the aforementioned problems, and its object is to provide a brake hydraulic control device that improves the airtightness between the main body and the cover within the housing, and prevents leakage of sealing material to the outside of the brake hydraulic control device, while also achieving miniaturization compared to conventional methods. Furthermore, an object of this invention is to provide a straddle-type vehicle equipped with such a brake hydraulic control device.

[0009] The brake hydraulic control device of the present invention is a brake hydraulic control device for a motorcycle, comprising: a base having a flow path for brake fluid; a winding erected on the base and a hydraulic adjustment valve that drives the opening and closing of the flow path; a circuit board that controls the energization of the winding; and a housing connected to the base and covering the winding and the circuit board; the housing comprising: a main body connected to the base and having an opening; and a cover covering the opening and mounted on the main body; the main body having a groove on the outer periphery of the opening facing the opening of the cover, and the cover having an insertion wall extending toward the main body and inserting into the groove. The aforementioned groove portion and the aforementioned insertion wall are sealed by a sealing material. The aforementioned brake hydraulic control device for a straddle-type vehicle is characterized in that the aforementioned groove portion includes: a bottom; an outer peripheral wall, which constitutes the outer peripheral side of the groove portion and extends from the aforementioned bottom to the aforementioned cover; and an inner peripheral wall, which constitutes the inner peripheral side of the groove portion and extends from the aforementioned bottom to the aforementioned cover; a space for storing the aforementioned sealing material is formed between the aforementioned outer peripheral wall and the aforementioned insertion wall, and between the aforementioned inner peripheral wall and the aforementioned insertion wall; when the opposing direction of the aforementioned main body portion and the aforementioned cover is set as a first direction, the length of the aforementioned outer peripheral wall in the aforementioned first direction is longer than the length of the aforementioned inner peripheral wall in the aforementioned first direction.

[0010] Furthermore, the straddle-type vehicle of the present invention is equipped with the brake hydraulic control device of the present invention.

[0011] Invention Effects

[0012] In the brake hydraulic control device of the present invention, the length of the outer peripheral wall of the groove portion in the first direction (the length of the main body portion and the cover facing each other in the opposite direction) 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 of the present invention, sealing material that leaks to the outside of the brake hydraulic control device in conventional brake hydraulic control devices can be stored between the outer peripheral wall of the groove portion and the insertion wall. That is, in the brake hydraulic control device of the present invention, even without the wall portion for preventing sealing material leakage to the outside of the brake hydraulic control device provided with the cover of conventional brake hydraulic control devices, sealing material leakage to the outside of the brake hydraulic control device can be prevented. Therefore, the brake hydraulic control device of the present invention can prevent the brake hydraulic control device from becoming too large in the direction perpendicular to the facing direction of the main body portion and the cover, and can prevent sealing material leakage to the outside of the brake hydraulic control device.

[0013] Here, the brake hydraulic control device houses within its housing a winding that drives the hydraulic adjustment valve and a circuit board that controls the energization of that winding. Therefore, the housing of a conventional brake hydraulic control device requires a certain length in the direction between the main body and the cover. Thus, even if the length of the outer peripheral wall of the groove in the first direction is longer than the length of the inner peripheral wall of the groove in the first direction, the brake hydraulic control device of the present invention will not be larger in the direction between the main body and the cover compared to conventional brake hydraulic control devices.

[0014] Therefore, the brake hydraulic control device of the present invention can be miniaturized compared with conventional brake hydraulic control devices that improve the airtightness between the main body and the cover in the housing and suppress the leakage of sealing material to the outside of the brake hydraulic control device. Attached Figure Description

[0015] Figure 1 This is a diagram showing a schematic structure of a bicycle equipped with a braking system having a braking hydraulic control device according to an embodiment of the present invention.

[0016] Figure 2 This is a diagram showing a schematic structure of the braking system according to an embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional view of the brake hydraulic control device according to an embodiment of the present invention.

[0018] Figure 4 This is a view of the cover of the housing of the brake hydraulic control device according to an embodiment of the present invention, viewed from the main body side of the housing.

[0019] Figure 5 yes Figure 3 An enlarged view of part A.

[0020] Figure 6 This is a cross-sectional view showing the main part around the groove of the main body of the housing in a conventional brake hydraulic control device.

[0021] Figure 7 This is a cross-sectional view of the main part around the groove portion of the main body of the housing in a modified example of the brake hydraulic control device according to an embodiment of the present invention.

[0022] Figure 8 This is a diagram illustrating an example of another shape of the insert wall in a modified embodiment of the brake hydraulic control device according to an embodiment of the present invention.

[0023] Figure 9 This is a diagram illustrating an example of another shape of the insert wall in a modified embodiment of the brake hydraulic control device according to an embodiment of the present invention.

[0024] Figure 10This is a cross-sectional view of the main part around the groove portion of the main body of the housing in a modified example of the brake hydraulic control device according to an embodiment of the present invention.

[0025] Figure 11 This is viewed from the side of the main body of the shell. Figure 10 A diagram of the cover of the housing of the brake hydraulic control device is shown. Detailed Implementation

[0026] The brake hydraulic control device and the straddle-type vehicle of the present invention will be described below with reference to the accompanying drawings.

[0027] Furthermore, the following description focuses on the application of this invention to bicycles (e.g., two-wheeled vehicles, three-wheeled vehicles, etc.), but the invention can also be used in other straddle-type vehicles besides bicycles. Other straddle-type vehicles besides bicycles include, for example, two-wheeled motor vehicles, three-wheeled motor vehicles, and off-road vehicles that use at least one of an engine and an electric motor as a drive source. Furthermore, "bicycle" refers to any means of transportation that can be propelled on a road by the force applied to the pedals. That is, bicycles include ordinary bicycles, electric-assisted bicycles, electric bicycles, etc. Additionally, two-wheeled or three-wheeled motor vehicles refer to so-called motorized bicycles, which include motorcycles, scooters, electric scooters, etc.

[0028] Furthermore, the structures and operations described below are merely examples, and the brake hydraulic control device and the motorcycle of the present invention are not limited to such structures and operations. For example, the brake hydraulic control device of the present invention will be described below as a pumpless type, but the brake hydraulic control device of the present invention may also include a pump to assist the flow of brake fluid. Furthermore, the braking system equipped with the brake hydraulic control device of the present invention will be described below as performing anti-lock braking control only on the braking force generated by the front wheel, but the braking system equipped with the brake hydraulic control device of the present invention may perform anti-lock braking control only on the braking force generated by the rear wheel, or it may perform anti-lock braking control on both the braking force generated by the front wheel and the braking force generated by the rear wheel.

[0029] Furthermore, in all figures, the same or similar components or parts are labeled with the same reference numerals or the reference numerals are omitted. Additionally, detailed constructions are appropriately simplified or omitted in the illustrations. Furthermore, repetitive descriptions are appropriately simplified or omitted.

[0030] <Integration of a braking system with hydraulic brake control into a bicycle>

[0031] The following describes the installation of a braking system equipped with the brake hydraulic control device of this embodiment onto a bicycle.

[0032] Figure 1This is a diagram showing a schematic structure of a bicycle equipped with a braking system having the brake hydraulic control device according to an embodiment of the present invention. Additionally, in Figure 1 The image shows bicycle 200 as a two-wheeled vehicle, but bicycle 200 can also be a tricycle or other types of bicycle.

[0033] The bicycle 200, as an example of a straddle-type vehicle, includes a frame 210, a swivel unit 230, a saddle 218, pedals 219, a rear wheel 220, and a rear wheel brake unit 260.

[0034] The frame 210 includes, for example, a head tube 211 that provides axle support to the steering column 231 of the slewing unit 230, an upper tube 212 and a lower tube 213 connected to the head tube 211, a seat tube 214 connected to the upper tube 212 and the lower tube 213 and holding the saddle 218, and a strut 215 connected to the upper and lower ends of the seat tube 214 and holding the rear wheel 220 and the rear wheel brake unit 260.

[0035] The slewing unit 230 includes a steering column 231, a handlebar 232 held in the steering column 231, a handlebar 233 held in the handlebar 232, a brake operating unit 240 mounted on the handlebar 233, a front fork 216 connected to the steering column 231, a front wheel 217 rotatably held in the front fork 216, and a front wheel brake unit 250. The front fork 216 is located 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.

[0036] The brake operating unit 240 includes a mechanism for operating the front wheel brake unit 250 and a mechanism for operating the rear wheel brake unit 260. For example, the mechanism for operating the front wheel brake unit 250 is located on the right end of the handlebar 233, and the mechanism for operating the rear wheel brake unit 260 is located on the left end of the handlebar 233.

[0037] The bicycle 200 constructed in this manner includes a brake hydraulic control device 1. In this embodiment, the brake hydraulic control device 1 is installed on the front fork 216 of the slewing section 230. The brake hydraulic control device 1 is a unit responsible for controlling the hydraulic pressure of the brake fluid in the front wheel brake 250. In addition, the rear wheel brake 260 may be a type of brake that generates braking force by increasing the hydraulic pressure of the brake fluid, or it may be a type of brake that generates braking force mechanically (e.g., a type of brake that generates braking force by tensioning a metal wire).

[0038] Furthermore, the bicycle 200 includes a power supply unit 270 that serves as the power source for the brake hydraulic control device 1. The power supply unit 270 is, for example, mounted on the downtube 213 of the frame 210. The power supply unit 270 can be a battery, or it can be a generator. The generator may include, for example, a generator that generates electricity through the movement of the bicycle 200 (e.g., a hub motor that generates electricity through the rotation of the front wheel 217 or the rear wheel 220, a generator that is a drive source for the front wheel 217 or the rear wheel 220 and generates regenerative power, etc.), or a generator that generates electricity using sunlight, etc.

[0039] In other words, the bicycle 200 is equipped with a braking system 100 that includes at least a brake operating unit 240, a front wheel brake unit 250, a brake hydraulic control device 1, and a power supply unit 270. The braking system 100 can perform anti-lock braking control by controlling the hydraulic pressure of the brake fluid in the front wheel brake unit 250 using the brake hydraulic control device 1.

[0040] <Structure of the Braking System>

[0041] The structure of the braking system in the embodiment will be described.

[0042] Figure 2 This is a diagram showing a schematic structure of the braking system according to an embodiment of the present invention.

[0043] The brake hydraulic control device 1 includes a base 10. A main cylinder port 11, a wheel cylinder port 12, and a flow path 13 connecting the main cylinder port 11 and the wheel cylinder port 12 are formed in the base 10.

[0044] Flow path 13 is the flow path for brake fluid. 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 are connected via the first flow path 14 and the second flow path 15. In addition, the inlet end of the third flow path 16 is connected to the middle section of the second flow path 15.

[0045] The brake operating unit 240 is connected to the master cylinder port 11 via a fluid pipe 101. The brake operating unit 240 includes a brake lever 241, a master cylinder 242, and a reservoir 243. The master cylinder 242 has a piston (not shown) that moves in conjunction with the user's operation of the brake lever 241, and is connected to the inlet side of the first flow path 14 via the fluid pipe 101 and the master cylinder port 11. By moving the piston, the hydraulic pressure of the brake fluid in the first flow path 14 increases or decreases. In addition, the brake fluid of the master cylinder 242 is stored in the reservoir 243.

[0046] A front wheel brake unit 250 is connected to the wheel cylinder port 12 via a hydraulic pipe 102. The front wheel brake unit 250 includes a wheel cylinder 251 and a rotor 252. The wheel cylinder 251 is mounted on the lower end of the front fork 216. The wheel cylinder 251 has a piston (not shown) that moves hydraulically in conjunction with the hydraulic pipe 102, and is connected to the outlet side of the second flow path 15 via the hydraulic pipe 102 and the wheel cylinder port 12. The rotor 252 is held on the front wheel 217 and rotates together with the front wheel 217. Due to the movement of the piston, the brake pad (not shown) presses against the rotor 252, thereby braking the front wheel 217.

[0047] Furthermore, the brake hydraulic control device 1 includes a hydraulic regulating valve 20 for opening and closing the flow path 13, and a winding 70 for driving the hydraulic regulating valve 20. In this embodiment, the brake hydraulic control device 1 includes an inlet valve 21 and an outlet valve 22 as the hydraulic regulating valve 20. The inlet valve 21 is located between the outlet side of the first flow path 14 and the inlet side of the second flow path 15, opening and closing the flow of brake fluid between the first flow path 14 and the second flow path 15. The outlet valve 22 is located between the outlet side of the third flow path 16 and the inlet side of the fourth flow path 17, opening and closing the flow of 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 of the inlet valve 21 and the outlet valve 22.

[0048] Furthermore, in this embodiment, the brake hydraulic control device 1 includes a winding 70 comprising a winding 71 for driving the inlet valve 21 and a winding 73 for driving the outlet valve 22. For example, when the winding 71 is not energized, the inlet valve 21 allows bidirectional flow of brake fluid. Moreover, when the winding 71 is energized, the inlet valve 21 closes, blocking the flow of brake fluid. That is, in this embodiment, the inlet valve 21 is a solenoid valve that opens when not energized. Similarly, for example, when the winding 73 is not energized, the outlet valve 22 blocks the flow of brake fluid. Moreover, when the winding 73 is energized, the outlet valve 22 opens, allowing bidirectional flow of brake fluid. That is, in this embodiment, the outlet valve 22 is a solenoid valve that closes when not energized.

[0049] In addition, 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 passing through the outlet valve 22.

[0050] Furthermore, the brake hydraulic control device 1 includes a hydraulic sensor 103 for detecting the hydraulic pressure of the brake fluid in the wheel cylinder 251. The hydraulic sensor 103 is located in the second flow path 15 or the third flow path 16.

[0051] Furthermore, the brake hydraulic control device 1 includes a control unit 30. The control unit 30 receives signals from various sensors, such as the hydraulic sensor 103 and a wheel speed sensor (not shown) for detecting the rotational speed of the front wheel 217. The various parts of the control unit 30 can be centrally located or distributed. The control unit 30 can be configured to include, for example, a microcomputer, a microprocessor unit, etc., and may also include firmware or other updatable structures, as well as program modules that execute according to instructions from a central processing unit, etc.

[0052] The control unit 30 controls the energization of windings 71 and 73. Specifically, the control unit 30 controls the actuation (opening and closing) of inlet valve 21 by controlling the energization of winding 71. Furthermore, the control unit 30 controls the actuation (opening and closing) of outlet valve 22 by controlling the energization of winding 73. That is, the control unit 30 controls the hydraulic pressure of brake fluid in wheel cylinder 251, and thus controls the braking force of front wheel 217, by controlling the opening and closing of inlet valve 21 and outlet valve 22.

[0053] Furthermore, in this embodiment, the structure of the control unit 30 that controls at least the energization of the windings 71 and 73 is constituted by the circuit board 31 described below. 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 windings 71 and 73.

[0054] For example, when the front wheel 217 is braked by the user operating the brake lever 241, the control unit 30 determines that the front wheel 217 is locked or has the possibility of locking based on the signal from the wheel speed sensor (not shown), and then starts anti-lock braking control.

[0055] If anti-lock braking control is initiated, the control unit 30 energizes the winding 71 and closes the inlet valve 21, blocking the flow of brake fluid from the master cylinder 242 to the wheel cylinder 251, thereby suppressing the pressurization of the brake fluid in the wheel cylinder 251. Conversely, the control unit 30 energizes the winding 73 and opens the outlet valve 22, allowing brake fluid to flow from the wheel cylinder 251 to the accumulator 23, thereby depressurizing the brake fluid in the wheel cylinder 251. This releases or prevents the front wheel 217 from locking up. If the control unit 30 determines, based on the signal from the hydraulic sensor 103, that the brake fluid in the wheel cylinder 251 has been depressurized to a predetermined value, it de-energizes the winding 73 and closes the outlet valve 22, and then de-energizes the winding 71 for a short time while opening the inlet valve 21, pressurizing the brake fluid in the wheel cylinder 251. The control unit 30 can perform the pressure increase / decrease of the wheel cylinder 251 only once, or it can repeat this process multiple times.

[0056] If the anti-lock braking control ends and the brake lever 241 returns, the master cylinder 242 becomes atmospheric pressure, and the brake fluid in the wheel cylinder 251 returns. Furthermore, when the anti-lock braking control ends and the brake lever 241 returns, the outlet valve 22 is opened. If the pressure of the brake fluid in the flow path 13 is 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 without pressurization (i.e., without a pump) and returns to the flow path 13, eventually returning to the master cylinder 242.

[0057] <Structure of the Brake Hydraulic Control Device>

[0058] The brake hydraulic control device 1 includes a base 10, a winding 70, a circuit board 31, and a housing 40. The structure of the brake hydraulic control device 1 according to this embodiment will be described below.

[0059] Figure 3 This 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 50 and a cover 60. Furthermore, as described below, the main body 50 includes a groove 52, and the cover 60 includes an insertion wall 61 that inserts into the groove 52. Figure 3 This is a cross-sectional view obtained by cutting the shell 40 with an imaginary plane. This imaginary plane is parallel to a first direction, which is the opposing direction between the main body 50 and the cover 60, and passes 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. Furthermore, the first direction, which is the opposing direction between the main body 50 and the cover 60, will be referred to below as the first direction Y. Additionally, [further details to be added] Figure 3 In the sectional view shown, the direction perpendicular to the first direction Y is represented as the second direction X.

[0060] also, Figure 4 This is a view of the cover of the housing of the brake hydraulic control device according to an embodiment of the present invention, viewed from the side of the main body of the housing. Additionally, in Figure 4 In the diagram, the shape of the opening of the groove portion 52 of the main body portion 50 is represented by an imaginary line, namely a double-dotted line.

[0061] The base 10 is, for example, a generally rectangular component made of aluminum alloy. The surfaces of the base 10 may be flat, may include bends, and may also include steps. A winding 71 and a winding 73, serving as a winding 70, are erected on the surface 18 of the base 10.

[0062] In detail, as described above, the brake hydraulic control device 1 of this 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 10. The inlet valve 21 is movably disposed in the recess 24, which connects the outlet side of the first flow path 14 and the inlet side of the second flow path 15. Furthermore, by moving within the recess 24, the inlet valve 21 opens and closes the flow of brake fluid between the first flow path 14 and the second flow path 15. Similarly, the outlet valve 22 is movably disposed in the recess 25, which connects the outlet side of the third flow path 16 and the inlet side of the fourth flow path 17. Furthermore, by moving within the recess 25, the outlet valve 22 opens and closes the flow of brake fluid between the third flow path 16 and the fourth flow path 17. With the inlet valve 21 disposed in the recess 24, a portion of the inlet valve 21 protrudes from the surface 18 toward the outside of the base 10. The winding 71 that drives the inlet valve 21 is erected on the surface 18 of the base 10 in such a way that it surrounds the protruding portion of the inlet valve 21. Similarly, with the outlet valve 22 in the recess 25, a portion of the outlet valve 22 protrudes from the surface 18 toward the outside of the base 10. The winding 73 that drives the outlet valve 22 is erected on the surface 18 of the base 10 in such a way that it surrounds the protruding portion of the outlet valve 22.

[0063] The circuit board 31, which controls the energization of windings 71 and 73, is electrically connected to windings 71 and 73. In this embodiment, the circuit board 31 is electrically connected to winding 71 via connection terminal 72 and to winding 73 via connection terminal 74.

[0064] The housing 40 is connected to the base 10 and covers the winding 70 and the circuit board 31. In this embodiment, the housing 40 is connected to surface 18 of the base 10. Furthermore, as described above, the brake hydraulic control device 1 of this embodiment includes a hydraulic sensor 103. In this embodiment, the hydraulic sensor 103 is also covered by the housing 40.

[0065] As described above, the housing 40 includes a main body 50 and a cover 60. The main body 50 is connected to the housing 40. Furthermore, an opening 51 is formed in the main body 50. The opening 51 is used, for example, when housing a circuit board 31 or the like within the housing 40. In this embodiment, the opening 51 is, for example, generally quadrilateral and is formed at a position facing the circuit board 31. The cover 60 covers the opening 51 and is mounted to the main body 50. Furthermore, to prevent moisture and the like from entering the housing 40 from between the main body 50 and the cover 60, the airtightness between the main body 50 and the cover 60 is improved within the housing 40 by means of the following structure.

[0066] Figure 5 for Figure 3 An enlarged view of part A. Figure 5In the diagram, the left side of the paper represents the outer side of the housing 40, and the right side represents the inner side of the housing 40. That is, in... Figure 5 In the middle, the left side of the paper shows the outer side of the brake hydraulic control device 1.

[0067] The main body 50 has a groove 52 on the outer periphery of the opening 51 that opens toward the cover 60. For example... Figure 4 As shown, in this embodiment, when viewed from the cover 60 side, the shape of the opening of the groove portion 52 corresponds to the shape of the opening 51, and is a roughly quadrilateral border shape. The groove portion 52 includes a bottom 53, an outer peripheral wall 54 forming the outer peripheral side of the groove portion 52 and extending from the bottom 53 toward the cover 60, and an inner peripheral wall 55 forming the inner peripheral side of the groove portion 52 and extending from the bottom 53 toward the cover 60. Furthermore, 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.

[0068] On the other hand, the cover 60 has an insertion wall 61 that extends toward the main body 50 and inserts into the groove 52. For example... Figure 4 As shown, in this embodiment, when viewed from the main body 50 side, the shape of the insertion wall 61 corresponds to the shape of the groove 52, and is a roughly quadrilateral border shape. When the insertion wall 61 is inserted into the groove 52, spaces 80 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. These spaces 80 are for storing sealing material. Furthermore, by sealing the groove 52 and the insertion wall 61 with the sealing material stored in the spaces 80, the housing 40 of this embodiment improves the airtightness between the main body 50 and the cover 60. Additionally, in this embodiment, a space 80 for storing sealing material is also formed between the bottom 53 of the groove 52 and the insertion wall 61.

[0069] When the cover 60 is installed on the main body 50, the housing 40 constructed in this manner first fills the groove 52 of the main body 50 with sealing material. Then, the insertion wall 61 of the cover 60 is inserted into the groove 52 filled with sealing material. As a result, the sealing material in the groove 52 is pushed by the insertion wall 61 and flows into the space between the outer peripheral wall 54 and the insertion wall 61, and between the inner peripheral wall 55 and the insertion wall 61. Furthermore, 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, sealing the space between the groove 52 and the insertion wall 61.

[0070] However, it is known that in conventional brake hydraulic control devices, the airtightness between the main body and the cover is improved by means of a groove provided in the main body and an insertion wall provided in the cover and inserted into the groove of the main body. Hereinafter, a conventional brake hydraulic control device with such a housing will be described. Furthermore, when describing the conventional brake hydraulic control device below, for structures identical to those of the brake hydraulic control device 1 of this embodiment, reference numerals with "300" added to the reference numerals representing the structure of the brake hydraulic control device 1 of this embodiment will be used.

[0071] Figure 6 This is a cross-sectional view showing the main part around the grooved portion of the main body of the housing in a conventional brake hydraulic control device. Figure 6 It is by means of Figure 3 The same cross-section was used to cut through the conventional brake hydraulic control device 301 to observe the difference. Figure 3 The diagram at the same position as part A. Therefore, in Figure 6 In the diagram, the left side of the paper represents the outer side of the conventional housing 340, and the right side represents the inner side of the conventional housing 340. That is, in... Figure 6 In the middle, the left side of the paper shows the external side of the conventional brake hydraulic control device 301.

[0072] The main body 350 of the housing 340 of the conventional brake hydraulic control device 301, like the main body 50 of this embodiment, has a groove 352 on the outer periphery of the opening 351 that opens toward the cover 360 of the housing 340. Here, the groove 352 differs from the groove 52 of this embodiment in 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. Furthermore, the cover 360 of the housing 340 of the conventional brake hydraulic control device 301, like the cover 60 of this embodiment, has an insertion wall 361 that extends toward the main body 350 and inserts into the groove 352. Moreover, when the insertion wall 361 is inserted into the groove 352, spaces for storing sealing material are formed between the outer peripheral wall 354 and the insertion wall 361, and between the inner peripheral wall 355 and the insertion wall 361.

[0073] The installation of the cover 360 onto the main body 350 is similar to that of the housing 40 in this embodiment, with sealing material filling the groove 352 of the main body 350. Then, the insertion wall 361 of the cover 360 is inserted into the groove 352 filled with sealing material. Here, when spaces are formed between the outer peripheral wall 354 and the insertion wall 361, and between the inner peripheral wall 355 and the insertion wall 361, the amount of sealing material flowing towards the outer peripheral wall 354 and the inner peripheral wall 355 differs depending on the insertion position and depth of the insertion wall 361 into the groove 352. That is, depending on the insertion position and depth of the insertion wall 361 into the groove 352, the amount of sealing material flowing towards the outer peripheral wall 354 is sometimes greater than intended.

[0074] 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. Therefore, in the conventional brake hydraulic control device 301, when the amount of sealing material flowing towards the outer peripheral wall 354 is relatively large, the sealing material filling the groove portion 352 may sometimes leak to the outside of the outer peripheral wall 354 (e.g., Figure 6 (See part B shown). Therefore, in the conventional brake hydraulic control device 301, in order to prevent the sealing material from leaking to the outside of the brake hydraulic control device 301, a wall portion 362 surrounding the outer side of the outer peripheral wall 354 is provided as a cover. As a result, the conventional brake hydraulic control device 301 is large in the second direction X due to the amount of the wall portion 362, making it difficult to miniaturize.

[0075] On the other hand, in the brake hydraulic control device 1 of this embodiment, as described above, the length of the outer peripheral wall 54 of the groove portion 52 of the main body portion 50 of the housing 40 in the first direction Y is longer than the length of the inner peripheral wall 55 in the first direction Y. Therefore, in the brake hydraulic control device 1 of this embodiment, even when the amount of sealing material flowing towards the outer peripheral wall 54 is large, the sealing material that would leak 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 of this embodiment, even without the wall portion 362 provided by the cover 360 of the conventional brake hydraulic control device 301, the leakage of sealing material to the outside of the brake hydraulic control device 1 can be suppressed. Therefore, the brake hydraulic control device 1 of this embodiment can suppress the enlargement in the second direction X and can suppress the leakage of sealing material to the outside of the brake hydraulic control device 1.

[0076] Here, conventional brake hydraulic control devices house the windings that drive the hydraulic adjustment valve and the circuit board that controls the energization of these windings within the housing. Therefore, the housing of a conventional brake hydraulic control device requires a certain length in the direction between the main body and the cover. Thus, as in this embodiment, even if 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, the brake hydraulic control device 1 of this embodiment will not be larger in the first direction Y compared to conventional brake hydraulic control devices.

[0077] Therefore, the brake hydraulic control device 1 of this embodiment can be miniaturized compared to conventional brake hydraulic control devices that improve the airtightness between the main body and the cover in the housing and suppress leakage of sealing material to the outside of the brake hydraulic control device.

[0078] <Effects of the brake hydraulic control device>

[0079] The effects of the brake hydraulic control device of the embodiment will be explained.

[0080] The brake hydraulic control device 1 of this embodiment includes a base 10 having a brake fluid flow path 13, a winding 70 erected on the base 10 and driving a hydraulic regulating valve 20 to open and close the flow path 13, a circuit board 31 controlling the energization of the winding 70, and a housing 40 connected to the base 10 and covering the winding 70 and the circuit board 31. The housing 40 includes a main body 50 connected to the base 10 and having an opening 51, and a cover 60 covering the opening 51 and mounted on the main body 50. The main body 50 has a groove 52 on the outer periphery of the opening 51 that opens toward the cover 60. The cover 60 has an insertion wall 61 extending toward the main body 50 and inserted into the groove 52. Furthermore, the groove 52 and the insertion wall 61 of the brake hydraulic control device 1 are sealed with a sealing material. The brake hydraulic control device 1 is, for example, a brake hydraulic control device for a bicycle 200, i.e., a straddle-type vehicle. The groove portion 52 includes a bottom 53, an outer peripheral wall 54 forming the outer peripheral side of the groove portion 52 and extending from the bottom 53 toward the cover 60, and an inner peripheral wall 55 forming the inner peripheral side of the groove portion 52 and extending from the bottom 53 toward the cover 60. Furthermore, spaces 80 for storing sealing material 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. Additionally, 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.

[0081] In 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 control device 1 of this embodiment can suppress its enlargement in the second direction X and can suppress leakage of sealing material to the outside of the brake hydraulic control device 1. Furthermore, as described above, the brake hydraulic control device 1 of this embodiment does not become larger in the first direction Y compared to conventional brake hydraulic control devices. Therefore, the brake hydraulic control device 1 of this embodiment can be miniaturized compared to conventional brake hydraulic control devices that improve the airtightness between the main body and the cover in the housing and suppress leakage of sealing material to the outside of the brake hydraulic control device.

[0082] Furthermore, as described above, the brake hydraulic control device 1 of this embodiment does not require the wall portion 362 provided by the cover 360 of the conventional brake hydraulic control device 301. This wall portion 362 sometimes hinders the improvement of the aesthetics of the brake hydraulic control device 301. That is, the brake hydraulic control device 1 of this embodiment is more aesthetically pleasing than the conventional brake hydraulic control device 301 which has the wall portion 362.

[0083] Preferably, the brake hydraulic control device 1 of this embodiment is mounted on a motorcycle such as a bicycle 200. Compared with vehicles such as four-wheeled motor vehicles, motorcycles have less freedom in the layout of parts, and therefore less freedom in mounting the brake hydraulic control device. Therefore, when mounting a brake hydraulic control device that improves the airtightness between the main body and the cover within the housing and prevents leakage of sealing material to the outside of the brake hydraulic control device on a motorcycle, the brake hydraulic control device 1 of this embodiment, which can be miniaturized compared to conventional devices, is more suitable. Furthermore, compared with vehicles such as four-wheeled motor vehicles, the brake hydraulic control device is easier to observe from the outside of a motorcycle. Therefore, by mounting the brake hydraulic control device 1 of this embodiment, which can prevent leakage of sealing material to the outside of the brake hydraulic control device, on a motorcycle, it is possible to prevent damage to the aesthetics of the motorcycle.

[0084] <Variation Example>

[0085] Figure 7 This is a cross-sectional view of the main portion surrounding the groove portion of the main body of the housing in a modified example of the brake hydraulic control device according to an embodiment of the present invention. Figure 7 It is by means of Figure 3 The same cross-section is used to cut a modified example of the brake hydraulic control device 1 for observation. Figure 3 The diagram at the same position as part A. Therefore, in Figure 7 In the diagram, the left side of the paper represents the outer side of the housing 40, and the right side represents the inner side of the housing 40. That is, in... Figure 7 In the middle, the left side of the paper shows the outer side of a modified example of the brake hydraulic control device 1.

[0086] exist Figures 1-5 The structure between the bottom 53 of the groove 52 and the insertion wall 61 is not specifically mentioned. Preferably, the bottom 53 of the groove 52 and the insertion wall 61 are connected by, for example, a... Figure 7 The structure is configured in this manner. Here, when describing the structure between the bottom 53 of the groove portion 52 and the insertion wall 61, in... Figure 7 In the cross-section shown, the center line 64, the outer peripheral line 65, the inner peripheral line 66, the outer peripheral region 81, and the inner peripheral region 82 are defined as follows: The center line 64 is a straight line passing through the center point of the second direction X and parallel to the first direction Y, located at the root 63 of the insertion region 62, where the insertion wall 61 is located inside the groove portion 52. The outer peripheral line 65 is a straight line passing through the point closest to the outer peripheral wall 54 in the insertion region 62 and parallel to the first direction Y. The inner peripheral line 66 is a straight line passing through the point closest to the inner peripheral wall 55 in the insertion region 62. The outer peripheral region 81 is the area surrounded by the insertion wall 61, the center line 64, the outer peripheral line 65, and the bottom 53 of the groove portion 52. The inner peripheral region 82 is the area surrounded by the insertion wall 61, the center line 64, the inner peripheral line 66, and the bottom 53 of the groove portion 52.

[0087] When defining the outer peripheral region 81 and the inner peripheral region 82 in this manner, it is preferable that the area of ​​the inner peripheral region 82 is larger than the area of ​​the outer peripheral region 81. Furthermore, in Figure 7 In this design, the insertion region 62 is asymmetrical about the centerline 64, resulting in an area larger than the area of ​​the outer peripheral region 81. Because the inner peripheral region 82 is larger than the outer peripheral region 81, when the insertion wall 61 of the cover 60 is inserted into the groove 52 filled with sealing material, the pressure exerted by the sealing material in the outer peripheral region 81 is greater than the pressure exerted by the sealing material in the inner peripheral region 82. Consequently, when the insertion wall 61 is inserted into the groove 52 filled with sealing material, the sealing material in the groove 52 flows more easily towards the inner peripheral wall 55 than towards the outer peripheral wall 54. Therefore, by making the area of ​​the inner peripheral region 82 larger than the area of ​​the outer peripheral region 81, leakage of sealing material to the outside of the brake hydraulic control device 1 can be further suppressed.

[0088] In addition, Figure 7 In a modified example of the brake hydraulic control device 1 shown, an inclined portion formed by a flat surface is provided on the inner periphery of the end of the insertion wall 61, so that the area of ​​the inner peripheral region 82 is larger than the area of ​​the outer peripheral region 81. However, this shape is only one example.

[0089] Figure 8 and Figure 9These figures are illustrations of an example of another shape of the insert wall in a modified embodiment of the brake hydraulic control device according to the present invention. These figures are drawn with reference to... Figure 3 The same cross-section is used to cut a modified example of the brake hydraulic control device 1 for observation. Figure 3 The figures are at the same position as part A. Therefore, in these figures, the left side of the paper represents the outer side of the housing 40, and the right side represents the inner side of the housing 40. That is, in these figures, the left side of the paper represents the outer side of a modified example of the brake hydraulic control device 1.

[0090] For example, Figure 8 As shown, an inclined portion formed by a curved surface is provided at the inner periphery of the end of the insertion wall 61, which also allows the insertion region 62 to have an asymmetrical shape with the center line 64 as the axis of symmetry, making the area of ​​the inner periphery region 82 larger than the area of ​​the outer periphery region 81. Furthermore, in Figure 8 In this design, although the inclined portion is formed by a curved surface protruding towards the bottom 53 of the groove portion 52, it can also be formed by a curved surface protruding to the side opposite to the bottom 53 of the groove portion 52. Even with this method of forming the inclined portion, the insertion region 62 can be made asymmetrical about the centerline 64, allowing the area of ​​the inner peripheral region 82 to be larger than the area of ​​the outer peripheral region 81. Furthermore, for example, Figure 9 As shown, even if at least one stepped portion is formed on the inner periphery of the end of the insertion wall 61, the insertion area 62 can be made asymmetrical about the center line 64, and the area of ​​the inner periphery region 82 can be larger than the area of ​​the outer periphery region 81. Regardless of the shape of the inner periphery of the end of the insertion wall 61, as long as the area of ​​the inner periphery region 82 is larger than the area of ​​the outer periphery region 81, when the insertion wall 61 is inserted into the groove 52 filled with sealing material, the sealing material in the groove 52 can easily flow to the inner periphery wall 55 side, thereby further suppressing the leakage of sealing material to the outside of the brake hydraulic control device 1.

[0091] Figure 10 This is a cross-sectional view showing the main portion around the groove of the main body of the housing in a modified example of the brake hydraulic control device according to an embodiment of the present invention. Figure 10 It is by means of Figure 3 The same cross-section is used to cut a modified example of the brake hydraulic control device 1 for observation. Figure 3 The diagram at the same position as part A. Therefore, in Figure 10 In the diagram, the left side of the paper represents the outer side of the housing 40, and the right side represents the inner side of the housing 40. That is, in... Figure 10 In the middle, the left side of the paper shows the outer side of a modified example of the brake hydraulic control device 1.

[0092] also, Figure 11 This is viewed from the side of the main body of the shell. Figure 10 A diagram showing the cover of the housing of the brake hydraulic control device. Additionally, in Figure 11 In the middle, the shape of the opening of the groove portion 52 of the main body portion 50 is represented by a double-dotted line as an imaginary line.

[0093] The brake hydraulic control device 1 is preferably equipped with at least one of a first positioning part 91 and a second positioning part 92.

[0094] The first positioning part 91 positions the main body 50 and the cover 60 of the housing 40 in a direction perpendicular to the first direction Y. When the insertion wall 61 is inserted into the groove 52 filled with sealing material, if there are spaces between the outer peripheral wall 54 and the insertion wall 61, and between the inner peripheral wall 55 and the insertion wall 61, the amount of sealing material flowing to the outer peripheral wall 54 and the inner peripheral wall 55 will be uneven if the insertion position of the insertion wall 61 into the groove 52 is uneven. Here, by providing the first positioning part 91, the insertion position of the insertion wall 61 into the groove 52 is stable, and therefore the amount of sealing material flowing to the outer peripheral wall 54 is also stable. Therefore, by providing the first positioning part 91, leakage of sealing material to the outside of the brake hydraulic control device 1 can be further suppressed.

[0095] Here, as Figure 10 and Figure 11 As shown, the first positioning part 91 is preferably a protrusion disposed between the outer peripheral wall 54 and the insertion wall 61. By utilizing the longer outer peripheral wall 54 in the first direction Y, the main body 50 and the cover 60 are positioned in a direction perpendicular to the first direction Y, and the insertion position of the insertion wall 61 on the groove 52 is further stabilized, which can further suppress the leakage of sealing material to the outside of the brake hydraulic control device 1. Furthermore, when the first positioning part 91 is a protrusion disposed between the outer peripheral wall 54 and the insertion wall 61, as Figure 10 and Figure 11 As shown, the first positioning part 91 is preferably fixed to the insertion wall 61 of the cover 60. When the first positioning part 91 is fixed to the insertion wall 61 of the cover 60, the first positioning part 91, which would otherwise be an obstacle when filling the groove 52 of the main body 50 with sealing material, is not present around the groove 52. Therefore, when the first positioning part 91 is fixed to the insertion wall 61 of the cover 60, the amount of sealing material filling at each position in the groove 52 is stable, thus further suppressing the leakage of sealing material to the outside of the brake hydraulic control device 1.

[0096] Furthermore, the number of protrusions that form the first positioning part 91 is not limited to Figure 10 and Figure 11 The number shown is arbitrary, as long as it allows for positioning of the main body 50 and the cover 60 in a direction perpendicular to the first direction Y. Furthermore, the aforementioned first positioning part 91 provides an effect that can be achieved regardless of whether the brake hydraulic control device 1 has a second positioning part 92.

[0097] The second positioning part 92 positions the main body 50 and the cover 60 of the housing 40 in the first direction Y. When the insertion wall 61 is inserted into the groove 52 filled with sealing material, if the insertion depth of the insertion wall 61 into the groove 52 is uneven, the amount of sealing material flowing to the outer peripheral wall 54 side will also be uneven. Here, by providing the second positioning part 92, the insertion depth of the insertion wall 61 into the groove 52 is stable, and therefore the amount of sealing material flowing to the outer peripheral wall 54 side is also stable. Therefore, by providing the second positioning part 92, leakage of sealing material to the outside of the brake hydraulic control device 1 can be further suppressed.

[0098] Here, as Figure 10 and Figure 11 As shown, the second positioning portion 92 is preferably a protrusion disposed between the end of the outer peripheral wall 54 and the cover 60. By disposing the second positioning portion 92 in this position, it functions as a wall portion that restricts the flow of sealing material that is about to leak from the groove portion 52 to the outside of the outer peripheral wall 54. Therefore, by disposing the second positioning portion 92 in this position, leakage of sealing material to the outside of the brake hydraulic control device 1 can be further suppressed. Furthermore, when the second positioning portion 92 is a protrusion disposed between the end of the outer peripheral wall 54 and the cover 60, as... Figure 10 and Figure 11 As shown, the second positioning part 92 is preferably fixed to the cover 60 and contacts the end of the outer peripheral wall 54. When the second positioning part 92 is fixed to the cover 60, the second positioning part 92, which serves as an obstacle during the filling of the sealing material, is not present around the groove 52 when the sealing material is filled. Therefore, when the second positioning part 92 is fixed to the cover 60, the amount of sealing material filling at each position in the groove 52 is stable, thus further suppressing the leakage of sealing material to the outside of the brake hydraulic control device 1.

[0099] Furthermore, the number of protrusions that form the second positioning part 92 is not limited to Figure 10 and Figure 11 The number shown is arbitrary, as long as it allows for positioning of the main body 50 and the cover 60 in the first direction Y. Furthermore, the effect of the second positioning part 92 is an effect that can be obtained regardless of whether the brake hydraulic control device 1 has the first positioning part 91.

[0100] The brake hydraulic control device 1 of this embodiment has been described above. However, the brake hydraulic control device of the present invention is not limited to the description of this embodiment, and can also be implemented by appropriately combining a part of the structure described in this embodiment.

[0101] Explanation of reference numerals in the attached figures

[0102] 1: Brake hydraulic control device

[0103] 10: Matrix

[0104] 11: Main cylinder port

[0105] 12: Wheel cylinder port

[0106] 13: Flow path

[0107] 14: 1st flow path

[0108] 15: 2nd flow path

[0109] 16: 3rd flow path

[0110] 17: 4th flow path

[0111] 18: Noodles

[0112] 20: Hydraulic regulating valve

[0113] 21: Inlet valve

[0114] 22: Outlet valve

[0115] 23: Accumulator

[0116] 24: concave part

[0117] 25: concave part

[0118] 30: Control Department

[0119] 31: Circuit board

[0120] 40: Shell

[0121] 50: Main body

[0122] 51: Opening

[0123] 52: Groove section

[0124] 53: Bottom

[0125] 54: Peripheral wall

[0126] 55: Inner peripheral wall

[0127] 60: Cover

[0128] 61: Insertion Wall

[0129] 62: Insertion area

[0130] 63: Roots

[0131] 64: Center line

[0132] 65: Outer peripheral straight line

[0133] 66: Inner peripheral straight line

[0134] 70: Winding

[0135] 71: Winding

[0136] 72: Connection terminal

[0137] 73: Winding

[0138] 74: Connection terminal

[0139] 80: Space

[0140] 81: Peripheral region

[0141] 82: Inner peripheral region

[0142] 91: First Positioning Section

[0143] 92: Second Positioning Section

[0144] 100: Braking System

[0145] 101: Liquid pipe

[0146] 102: Liquid pipe

[0147] 103: Hydraulic sensor

[0148] 200: Bicycle

[0149] 210: Chassis

[0150] 211: Head tube

[0151] 212: Top tube

[0152] 213: Lower pipe

[0153] 214: Seat tube

[0154] 215: Support pole

[0155] 216: Front fork

[0156] 217: Front wheel

[0157] 218: Saddle

[0158] 219: Pedal

[0159] 220: Rear wheel

[0160] 230: Rotating part

[0161] 231: Steering column

[0162] 232: Handlebar

[0163] 233: Handlebars

[0164] 240: Brake operating unit

[0165] 241: Brake lever

[0166] 242: Master cylinder

[0167] 243: Liquid reservoir

[0168] 250: Front wheel brake unit

[0169] 251: Wheel cylinder

[0170] 252: Rotor

[0171] 260: Rear wheel brake unit

[0172] 270: Power Supply Unit

[0173] 301: Brake hydraulic control device (conventional)

[0174] 340: Casing (Previous)

[0175] 350: Main body (previous)

[0176] 351: Opening (Previously)

[0177] 352: Groove section (previously)

[0178] 354: Outer wall (previously)

[0179] 355: Inner peripheral wall (previously)

[0180] 360: Cover (in the past)

[0181] 361: Insertion Wall (Previous)

[0182] 362: Wall section (previously)

Claims

1. A brake hydraulic control device (1) for a straddle-type vehicle (200), the brake hydraulic control device (1) comprising a base (10), a winding (70), a circuit substrate (31), a housing (40), the base (10) forming a flow path (13) for brake fluid, the winding (70) being erected on the base (10) and driving a hydraulic adjusting valve (20) that opens and closes the flow path (13), the circuit substrate (31) controlling electric conduction to the winding (70), the housing (40) being attached to the base (10) and covering the winding (70) and the circuit substrate (31), the housing (40) including a main body portion (50) and a cover (60), the main body portion (50) being attached to the base (10) and forming an opening portion (51), the cover (60) covering the opening portion (51) and being attached to the main body portion (50), the main body portion (50) having a groove portion (52) that opens toward the cover (60) on an outer peripheral side of the opening portion (51), the cover (60) having an insertion wall (61) that extends toward the main body portion (50) and is inserted into the groove portion (52), a space (80) in which a sealing material is filled being formed between the groove portion (52) and the insertion wall (61), the brake hydraulic control device (1) being characterized in that the groove portion (52) includes a bottom portion (53), an outer peripheral wall (54), and an inner peripheral wall (55), the outer peripheral wall (54) constitutes a wall on an outer peripheral side of the groove portion (52) and extends from the bottom portion (53) toward the cover (60), the inner peripheral wall (55) constitutes a wall on an inner peripheral side of the groove portion (52) and extends from the bottom portion (53) toward the cover (60), the space (80) in which the sealing material is filled is formed between the outer peripheral wall (54) and the insertion wall (61) through the bottom portion (53) and between the bottom portion (53) and the insertion wall (61) to between the inner peripheral wall (55) and the insertion wall (61), when a direction in which the main body portion (50) and the cover (60) face each other is defined as a first direction (Y), a direction perpendicular to the first direction (Y) is defined as a second direction (X), and an end portion of the outer peripheral wall (54) on a side away 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 cover (60) and the top portion of the outer peripheral wall (54), in the second direction (X), an outer side of the gap is not covered by the cover (60), a length of the first direction (Y) of the outer peripheral wall (54) is longer than a length of the first direction (Y) of the inner peripheral wall (55), further, the cover (60) includes a second positioning portion (92) that positions the main body portion (50) and the cover (60) in the first direction (Y). The aforementioned second positioning portion (92) is a protrusion provided to protrude from the aforementioned lid (60) toward the aforementioned top portion of the aforementioned outer peripheral wall (54), and is a protrusion disposed between the aforementioned top portion and the aforementioned lid (60) and in contact with the aforementioned top portion.

2. The brake hydraulic pressure control device (1) according to claim 1, characterized in that, in a cross section of the casing (40) obtained by cutting the casing (40) with an imaginary plane parallel to the aforementioned first direction (Y) and passing through the aforementioned insertion wall (61), the aforementioned outer peripheral wall (54), and the aforementioned inner peripheral wall (55), a straight line passing through a center point of the aforementioned second direction (X) of a root (63) of an insertion region (62) of an area inside the aforementioned groove portion (52) of the aforementioned insertion wall (61) and parallel to the aforementioned first direction (Y) is set as a center line (64), a straight line passing through a point of the aforementioned insertion region (62) closest to the aforementioned outer peripheral wall (54) side and parallel to the aforementioned first direction (Y) is set as an outer peripheral side straight line (65), a straight line passing through a point of the aforementioned insertion region (62) closest to the aforementioned inner peripheral wall (55) side and parallel to the aforementioned first direction (Y) is set as an inner peripheral side straight line (66), an area surrounded by the aforementioned insertion wall (61), the aforementioned center line (64), the aforementioned outer peripheral side straight line (65), and the aforementioned bottom portion (53) is set as an outer peripheral side region (81), an area surrounded by the aforementioned insertion wall (61), the aforementioned center line (64), the aforementioned inner peripheral side straight line (66), and the aforementioned bottom portion (53) is set as an inner peripheral side region (82), In this case, an area of the aforementioned inner peripheral side region (82) is larger than an area of the aforementioned outer peripheral side region (81).

3. The brake hydraulic pressure control device (1) according to claim 2, characterized in that, the aforementioned insertion region (62) is an asymmetric shape with the aforementioned center line (64) as a symmetric axis.

4. The brake hydraulic pressure control device (1) according to any one of claims 1 to 3, characterized in that, a first positioning portion (91) is provided, the aforementioned first positioning portion (91) positioning the aforementioned main body portion (50) and the aforementioned lid (60) in the aforementioned second direction (X).

5. The brake hydraulic pressure control device (1) according to claim 4, characterized in that, the aforementioned first positioning portion (91) is a protrusion, disposed between the aforementioned outer peripheral wall (54) and the aforementioned insertion wall (61).

6. The brake hydraulic pressure control device (1) according to claim 5, characterized in that, the aforementioned first positioning portion (91) is fixed to the aforementioned insertion wall (61).

7. A straddled vehicle (200), characterized by comprising the brake hydraulic pressure control device (1) according to any one of claims 1 to 6. ​

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