Hydraulic pressure control unit and saddled vehicle

Abstract

The present invention provides a hydraulic pressure control unit for a saddled vehicle, with which greater compactness can be achieved than with hydraulic pressure control units in the prior art. A hydraulic pressure control unit according to the present invention comprises a coil that drives a hydraulic pressure adjustment valve for opening and closing an internal flow path through which brake fluid flows, a control substrate that controls the state of conduction to the coil, and a connection terminal that electrically connects the coil and the control substrate. The connection terminal is provided with: a coil-side connection part that is electrically connected to the coil; a first arm part that extends from the base part toward the control substrate; a substrate-side connection part that is provided to the first arm part, is press-fitted into the control substrate, and is electrically connected to the control substrate; a second arm part that branches from the base part, extends toward a housing for accommodating the control substrate, and is different from the first arm part; and a housing-side connection part that is provided to the second arm part and is press-fitted into the housing.

Description

[0001] [Document name] Statement

[0002] [Title of invention] Hydraulic pressure control unit and saddle-type vehicle

[0003] [Technical Field]

[0004]

[001] The present invention relates to a hydraulic control unit for a saddle-ride type vehicle, and to a saddle-ride type vehicle equipped with the hydraulic control unit.

[0005] [Background technology]

[0006] [.002] Some conventional vehicles are equipped with a hydraulic control unit that controls the hydraulic pressure of brake fluid in a hydraulic circuit filled with brake fluid. For example, when the driver of the vehicle operates an input device such as a brake lever, the hydraulic control unit increases or decreases the hydraulic pressure of the brake fluid in the hydraulic circuit to adjust the braking force generated at the wheels and perform anti-lock brake control. Such a conventional hydraulic control unit includes a base body having an internal flow path that connects the wheel cylinders and the master cylinder, a hydraulic pressure adjustment valve that opens and closes the internal flow path, a coil that drives the hydraulic pressure adjustment valve, a control board that controls the state of electricity flow to the coil, and a housing that houses the control board (see, for example, Patent Document 1).

[0007]

[003] In addition, in such a conventional hydraulic control unit, the control board and the coil are electrically connected by a connection terminal attached to the housing. Specifically, the connection terminal of the conventional hydraulic control unit includes a coil-side connection portion electrically connected to the coil, a board-side connection portion press-fitted into the control board and electrically connected to the control board, and a housing-side connection portion press-fitted into the housing. In the connection terminal of the conventional hydraulic control unit, the board-side connection portion and the housing-side connection portion are provided on a single arm extending from a base.

[0008] [Prior art documents]

[0009] [Patent documents]

[0010]

. 0 0 4

[0011] [Patent Document 1] International Publication No. 2019 / 220231

[0012] Summary of the Invention

[0013] [Problem to be solved by the invention]

[0014] [.0 0 5] Due to processing errors in the housing and control board, etc., an error occurs in the relative position of the point where the board-side connection part of the control board is press-fitted relative to the point where the housing-side connection part of the housing is press-fitted. Furthermore, when the hydraulic control unit is in operation, heat generated from the coils, etc. causes the housing and control board to thermally expand. At this time, differences in the thermal expansion coefficients of the housing and the control board also cause an error in the relative position of the point where the board-side connection part of the control board is press-fitted relative to the point where the housing-side connection part of the housing is press-fitted. In connection terminals of conventional hydraulic control units for vehicles, this error is absorbed by deformation of the part of the arm between the board-side connection part and the housing-side connection part. Hereinafter, the part of the arm that absorbs the above-mentioned error by deformation will be referred to as the error absorption part.

[0015] [. 0 0 6] Here, straddle-type vehicles, which are a type of vehicle, have less freedom in component layout and therefore less freedom in mounting hydraulic control units than vehicles such as four-wheeled automobiles. For this reason, there has been a demand for miniaturization of hydraulic control units mounted on straddle-type vehicles. However, when a conventional hydraulic control unit is miniaturized, the length of the error absorption portion (the portion between the board-side connection portion and the housing-side connection portion in the arm) becomes shorter. For this reason, when a conventional hydraulic control unit is miniaturized, if the error absorption portion is deformed due to the above-mentioned error, the bending stress generated in the error absorption portion may become excessive. For this reason, conventional hydraulic control units have had the problem of being difficult to miniaturize.

[0016]

[007] The present invention has been made in light of the above-mentioned problems, and has as its first object to provide a hydraulic control unit for a saddle-ride type vehicle that can be made smaller than conventional units. Also, as a second object of the present invention, to provide a saddle-ride type vehicle equipped with such a hydraulic control unit.

[0017] [Means for solving the problem]

[0018]

[0008] A hydraulic control unit according to the present invention is a hydraulic control unit for a brake system mounted on a saddle-ride type vehicle and capable of performing antilock brake control, and comprises: a base body having an internal flow path that connects a wheel cylinder and a master cylinder; a hydraulic pressure regulating valve that opens and closes the internal flow path; a coil that drives the hydraulic pressure regulating valve; a control board that controls the state of current supply to the coil; a housing that accommodates the control board; and a connection terminal that electrically connects the coil and the control board, wherein the connection terminal comprises: a coil-side connection portion electrically connected to the coil; a first arm portion that extends from a base body toward the control board; a board-side connection portion that is provided on the first arm portion and press-fitted into the control board to electrically connect the control board; a second arm portion that is an arm portion different from the first arm portion and extends from the base body toward the housing; a housing-side connecting portion press-fitted into the housing.

[0019]

[0009] The saddle-ride type vehicle according to the present invention is equipped with the hydraulic pressure control unit according to the present invention.

[0020] [Effects of the Invention]

[0021]

[0010] In the connection terminal of the hydraulic control unit according to the present invention, the board-side connection portion and the housing-side connection portion are provided on different arms. Therefore, in the connection terminal of the hydraulic control unit according to the present invention, the portion between the board-side connection portion and the base portion on the first arm becomes the error absorption portion. Therefore, the connection terminal of the hydraulic control unit according to the present invention can ensure a longer error absorption portion compared to the connection terminal of a conventional hydraulic control unit. Therefore, the hydraulic control unit according to the present invention can suppress bending stress occurring in the error absorption portion more than conventionally. In addition, because the board-side connection portion and the housing-side connection portion are provided on different arms, it can be made smaller than conventional hydraulic control units.

[0022] [Brief description of the drawing]

[0023] [ 0 0 1 1 ]

[0024] [Figure 1] A diagram showing the configuration of a saddle-type vehicle equipped with a brake system equipped with a hydraulic control unit according to an embodiment of the present invention.

[0025] [Figure 2] A diagram showing the configuration of a brake system equipped with a hydraulic control unit according to an embodiment of the present invention.

[0026] [Figure 3] A partial cross-sectional view of a hydraulic control unit according to an embodiment of the present invention, viewed from the side.

[0027] [Figure 4] A perspective view showing the coil and connection terminal of the hydraulic control unit according to an embodiment of the present invention.

[0028] [Figure 5] A diagram of the coil and connection terminal of a hydraulic control unit according to an embodiment of the present invention, observed in a direction along the axis of the coil.

[0029] FIG. 6 is a side view showing a connection terminal of a hydraulic control unit according to an embodiment of the present invention.

[0030] FIG. 7 is a side view showing a connection terminal of a modified example of the hydraulic control unit according to the embodiment of the present invention; FIG. 8 is a view showing the configuration of a brake system including a modified example of the hydraulic control unit according to the embodiment of the present invention;

[0031] DETAILED DESCRIPTION OF THE INVENTION

[0032]

[0012] The following describes a hydraulic control unit and a straddle-type vehicle according to the present invention with reference to the drawings. The following describes an example in which the hydraulic control unit according to the present invention is mounted on a motorcycle, which is an example of a straddle-type vehicle. However, the hydraulic control unit according to the present invention may also be mounted on other straddle-type vehicles other than motorcycles. Examples of other straddle-type vehicles other than motorcycles include bicycles (e.g., two-wheeled vehicles, three-wheeled vehicles, etc.), three-wheeled vehicles using at least one of an engine and an electric motor as a drive source, and buggies. Furthermore, a bicycle generally refers to any vehicle that can be propelled on a road by applying force to pedals. In other words, bicycles include ordinary bicycles, electrically assisted bicycles, and electric bicycles. Furthermore, two-wheeled or three-wheeled motor vehicles refer to so-called motorcycles, which include motorcycles, scooters, electric scooters, etc.

[0033]

[0013] In the following description, an example is given in which the hydraulic control unit according to the present invention is used in a brake system having one hydraulic circuit, but the number of hydraulic circuits in a brake system in which the hydraulic control unit according to the present invention is used is not limited to one. A brake system in which the hydraulic control unit according to the present invention is used may have two or more hydraulic circuits.

[0034]

[0014] Furthermore, the configurations, operations, etc. described below are merely examples, and the present invention is not limited to such configurations, operations, etc. Furthermore, in each drawing, the same or similar members or parts may be denoted by the same reference numerals or may not be denoted by the reference numerals. Furthermore, detailed structures may be simplified or omitted as appropriate.

[0035] [ 0 0 1 5 ] Embodiments.

[0036] <Configuration and Operation of Brake System for Straddle-Type Vehicle> The configuration and operation of a brake system equipped with a hydraulic pressure control unit according to this embodiment will be described. Fig. 1 is a diagram showing the configuration of a straddle-type vehicle equipped with a brake system equipped with a hydraulic pressure control unit according to an embodiment of the present invention. Fig. 2 is a diagram showing the configuration of a brake system equipped with a hydraulic pressure control unit according to an embodiment of the present invention.

[0037]

[0016] As shown in Fig. 1 and Fig. 2, the brake system 10 is mounted on a saddle-riding vehicle 200. The saddle-riding vehicle 200 is, for example, a motorcycle powered by an engine. The saddle-riding vehicle 200 includes a body 1, a handlebar 2 rotatably held on the body 1, a front wheel 3 rotatably held together with the handlebar 2 on the body 1, and a rear wheel 4 rotatably held on the body 1.

[0038]

[0017] The brake system 10 includes a brake lever 11 and a hydraulic circuit 12 filled with brake fluid. The brake lever 11 is provided on the handlebars 2 and is operated by the driver's hand. The hydraulic circuit 12 generates a braking force in a rotor 3a that rotates together with the front wheels 3 according to the amount of operation of the brake lever 11. The rotor 4a that rotates together with the rear wheels 4 generates a braking force according to the amount of operation of the brake pedal 13. The brake pedal 13 is provided below the body 1 and is operated by the driver's foot. The mechanism that generates a braking force according to the amount of operation of the brake pedal 13 may be a mechanism that generates a braking force by increasing the pressure of the brake fluid, or may be a mechanism that generates a braking force mechanically (for example, a mechanism that generates a braking force by generating tension in a wire).

[0039]

[0018] Here, the brake lever 11 and the brake pedal 13 are examples of a brake input unit. For example, a brake pedal other than the brake pedal 13 provided on the body 1 may be used as a brake input unit instead of the brake lever 11. Also, for example, a brake lever other than the brake lever 11 provided on the handlebar 2 may be used as a brake input unit instead of the brake pedal 13.

[0040]

[0019] The hydraulic circuit 12 includes a master cylinder 21 incorporating a piston (not shown), a reservoir 22 attached to the master cylinder 21, a brake caliper 23 having brake pads (not shown), and a wheel cylinder 24 that operates the brake pads (not shown) of the brake caliper 23.

[0041]

[0020] An internal flow path 40 that connects the wheel cylinder 24 and the master cylinder 21 is formed in the base 110 of the hydraulic control unit 100. Specifically, the internal flow path 40 communicates with the master cylinder 21 via a liquid pipe 15 described below, and communicates with the wheel cylinder 24 via a liquid pipe 16 described below. In this embodiment, a main flow path 41 and a sub-flow path 42 are formed in the base 110 as the internal flow path 40. The hydraulic control unit 100 also includes a hydraulic pressure adjustment valve 25 that opens and closes the internal flow path 40, and a coil 70 that drives the hydraulic pressure adjustment valve 25. In this embodiment, the hydraulic control unit 100 is provided with an inlet valve 26 and a release valve 27 as the hydraulic pressure regulating valve 25. Also, in this embodiment, the coil 70 is provided with an inlet valve coil 71 that drives the inlet valve 26 and a release valve coil 72 that drives the release valve 27.

[0042]

[0021] Specifically, in the hydraulic circuit 12, the master cylinder 21 and the wheel cylinders 24 are connected via a fluid pipe 15 connected between the master cylinder 21 and a master cylinder port MP formed in the base 11O, a main flow path 41 formed in the base 11O, and a fluid pipe 16 connected between the wheel cylinder 24 and a wheel cylinder port WP formed in the base 11O. Brake fluid in the wheel cylinder 24 is released via a sub-flow path 42 to a main flow path intermediate portion 41a, which is an intermediate portion of the main flow path 41.

[0043]

[0022] Inlet valve 26 is provided in a region of main flow path 41 closer to wheel cylinder 24 than main flow path intermediate portion 41a. Opening and closing operation of inlet valve 26 opens and closes the flow path portion of main flow path 41 where inlet valve 26 is installed, thereby controlling the flow rate of brake fluid flowing through this region. In secondary flow path 42, from upstream to downstream, there are provided release valve 27, accumulator 28 for storing brake fluid, and pump 50. Opening and closing operation of release valve 27 opens and closes the flow path portion of secondary flow path 42 where release valve 27 is installed, thereby controlling the flow rate of brake fluid flowing through this region. Pump 50 applies pressure to the brake fluid in secondary flow path 42 to move the brake fluid. That is, the pump 50 moves the brake fluid in the internal flow path 40. Specifically, the pump 50 returns the brake fluid that has been released from the wheel cylinder 24 to the internal flow path 40 to the master cylinder 21.

[0044]

[0023] A master cylinder hydraulic pressure sensor 30 is provided in the main flow path 41 in an area closer to the master cylinder 21 than the inlet valve 26, for detecting the hydraulic pressure of the brake fluid in the master cylinder 21. A wheel cylinder hydraulic pressure sensor 31 is provided in the main flow path 41 in an area closer to the wheel cylinder 24 than the inlet valve 26, for detecting the hydraulic pressure of the brake fluid in the wheel cylinder 24.

[0045]

[0024] In other words, the main flow path 41 connects the master cylinder port MP and the wheel cylinder port WP via the inlet valve 26. The sub-flow path 42 is defined as a part or all of the flow path that releases the brake fluid in the wheel cylinder 24 to the master cylinder 21 via the release valve 2?. In other words, the sub-flow path 42 also connects the master cylinder port MP and the wheel cylinder port WP.

[0046]

[0025] The inlet valve 26 is a solenoid valve that switches the flow of brake fluid at its installation location from open to closed when the inlet valve coil 71 changes from a non-energized state to an energized state. The release valve 27 is a solenoid valve that switches the flow of brake fluid toward the accumulator 28 through its installation location from closed to open when the release valve coil 72 changes from a non-energized state to an energized state. This makes it possible to perform pressure reduction control of the hydraulic circuit 12 (in other words, anti-lock brake control). Note that some conventional hydraulic control units perform automatic pressure increase control by sending brake fluid from the master cylinder to the wheel cylinders using a pump. The hydraulic control unit 100 according to this embodiment may be configured to perform such automatic pressure increase control.

[0047]

[0033] <Configuration of hydraulic control unit> Figure 3 is a partial cross-sectional side view of a hydraulic control unit according to an embodiment of the present invention. The base 110 is formed of a metal such as an aluminum alloy and has, for example, a substantially rectangular parallelepiped shape. Each side of the base 110 may be flat, may include a curved portion, or may include a step. A hydraulic pressure adjustment valve 25 is provided on a side surface 110a of the base 110 so that a portion of the hydraulic pressure adjustment valve 25 protrudes from the side surface 110a. The hydraulic pressure adjustment valve 25 is covered by a housing 120.

[0048]

[0034] The housing 120 is made of, for example, resin and has, for example, a substantially rectangular parallelepiped shape. Each side of the housing 120 may be flat, may include a curved portion, or may include a step. The housing 120 is attached to, for example, the side surface 110a of the base 110. The housing 120 also houses the control board 61. Specifically, the housing 120 includes a main body 121 and a lid 122. The main body 121 has a substantially box-like shape with an opening on the side facing the side surface 110a of the base 110. The lid 122 covers the end of the main body 121 opposite the base 110. The control board 61 is arranged in a space surrounded by the main body portion 121 and the lid portion 122.

[0049]

[0035] As described above, the control board 61 controls the energization state of the coil 70. For this reason, the control board 61 is electrically connected to the coil 70 via the connection terminal 80 attached to the housing 120. When the housing 120 is attached to the base 110, the coil 70 that drives the hydraulic pressure regulating valve 25 is disposed so as to surround the portion of the hydraulic pressure regulating valve 25 that protrudes from the side surface 110a. Hereinafter, the connection terminal 80 will be described in detail with reference to FIG. 3 and FIGS. 4 to 6 described below.

[0050]

[0036] Fig. 4 is a perspective view showing the coil and connection terminal of the hydraulic control unit according to the embodiment of the present invention. Fig. 5 is a view of the coil and connection terminal of the hydraulic control unit according to the embodiment of the present invention, observed in a direction along the axis of the coil. Fig. 6 is a side view showing the connection terminal of the hydraulic control unit according to the embodiment of the present invention. For example, two connection terminals 80 are electrically connected to the coil 70. The connection terminal 80 is made of a conductive material and includes a coil-side connection portion 85, a base portion 83, a first arm portion 81, a board-side connection portion 86, a second arm portion 82, and a housing-side connection portion 87.

[0051]

[0037] The coil side connection portion 85 is a portion electrically connected to the coil 70. The coil side connection portion 85 is electrically connected to the coil 70 and is also electrically connected to the base portion 83. A first arm portion 81 extends from the base portion 83 toward the control board 61. A board side connection portion 86 is provided on this first arm portion 81. The board side connection portion 86 is press-fitted into a hole 61 a in the control board 61 and is electrically connected to the control board 61. In this embodiment, the board side connection portion 86 is provided in the middle of the first arm portion 81. However, the present invention is not limited to this, and the board side connection portion 86 may be provided at the tip portion of the first arm portion 81.

[0052]

[0038] Furthermore, a second arm 82, which is an arm different from the first arm 81, extends from the base 83 toward the housing 120. This second arm 82 is provided with a housing side connecting portion 87. The housing side connecting portion 87 is a portion that is press-fitted into the hole 123 of the housing 120. In other words, the housing side connecting portion 87 is a portion that is fixed to the housing 120. In this embodiment, the housing side connecting portion 87 is provided at the tip of the second arm 82. However, the present invention is not limited to this, and the housing side connecting portion 87 may be provided at a midpoint of the second arm 82.

[0053]

[0039] In this embodiment, the coil side connecting portion 85 is electrically connected to the base portion 83 by the connecting portion 84. In this embodiment, the connecting portion 84 is provided with a deformable spring portion 84a. Due to assembly errors of the hydraulic control unit 100 and differences after processing of the components of the hydraulic control unit 100, an error occurs in the relative position of the hole 61a of the control board 61 and the hole 123 of the housing 120 with respect to the point where the coil side connecting portion 85 of the coil 70 is connected. This error is absorbed by the deformation of the spring portion 84a.

[0054]

[0040] In addition, the connection terminal 80 according to this embodiment is arranged in the order of the coil side connection portion 85, the board side connection portion 86, and the housing side connection portion 87. More specifically, when the coil 70 and the connection terminal 80 are observed in a direction along the axis θa of the coil 70, the connection terminal 80 is arranged in the order of the coil side connection portion 85, the board side connection portion 86, and the housing side connection portion 87 in a direction away from the axis θa. However, the arrangement order of these connection portions is merely an example. For example, the connection terminal 80 may be arranged in the order of the coil side connection portion 85, the housing side connection portion 87, and the board side connection portion 86. That is, when observing the coil 70 and the connection terminal 80 in a direction along the axis 70a of the coil 70, the connection terminal 80 may be arranged in the order of the coil side connection portion 85, the housing side connection portion 87, and the board side connection portion 86 in a direction away from the axis 70a.

[0055]

[0041] Here, due to processing errors of the housing 120 and the control board 61, an error occurs in the relative position of the hole 61a, into which the board-side connection portion 86 of the control board 61 is press-fitted, with respect to the hole 123, into which the housing-side connection portion 87 of the housing 120 is press-fitted. Furthermore, during operation of the hydraulic control unit 100, heat generated from the coil 70 and the like causes thermal expansion of the housing 120 and the control board 61. At this time, an error also occurs in the relative position of the hole 61a of the control board 61 with respect to the hole 123 of the housing 120 due to differences in the thermal expansion coefficients of the housing 120 and the control board 61. In the connection terminal 80 of the hydraulic control unit 100 according to this embodiment, this error is absorbed by deformation of the portion of the first arm 81 between the board-side connection portion 86 and the base portion 83. Hereinafter, the portion of the arm that absorbs the error by deformation will be referred to as the error absorption portion.

[0056]

[0042] Meanwhile, straddle-type vehicles, which are a type of vehicle, have less freedom in component layout and therefore less freedom in mounting hydraulic control units than vehicles such as four-wheeled automobiles. For this reason, there has been a demand for miniaturization of hydraulic control units mounted on straddle-type vehicles. However, miniaturization of conventional hydraulic control units has been difficult. Specifically, in the connection terminal of a conventional hydraulic control unit, the board-side connection portion and the housing-side connection portion are provided on a single arm extending from the base. Therefore, in the connection terminal of a conventional hydraulic control unit, the portion between the board-side connection portion and the housing-side connection portion on the arm serves as the error absorption portion. Therefore, if the conventional hydraulic control unit is made smaller, the length of the error absorption portion will be shortened. Therefore, when a conventional hydraulic control unit is downsized, if the error absorbing portion is deformed by the above-mentioned error, the bending stress generated in the error absorbing portion may become excessive. For this reason, it has been difficult to downsize conventional hydraulic control units.

[0057]

[0043] On the other hand, in the connection terminal 80 of the hydraulic control unit 100 according to this embodiment, as described above, the portion of the first arm 81 between the board-side connection portion 86 and the base 83 becomes the error absorption portion. Therefore, the connection terminal 80 of the hydraulic control unit 100 according to this embodiment can ensure a longer error absorption portion compared to the connection terminals of conventional hydraulic control units. For this reason, the hydraulic control unit 100 according to this embodiment can suppress bending stress generated in the error absorption portion more than conventional hydraulic control units, and can be made smaller than conventional hydraulic control units.

[0058]

[0044] Here, it is preferable that the hydraulic control unit 100 according to this embodiment has the following configuration.

[0059]

[0045] Preferably, the thickness of at least a portion of the region between the base 83 and the board-side connection portion 86 in the first arm 81 is thinner than the thickness of the region between the base 83 and the housing-side connection portion 87 in the second arm 82. In the connection terminal 80 configured in this manner, the error absorbing portion is more flexible, so that the bending stress generated in the error absorbing portion can be more effectively suppressed. Therefore, the connection terminal 80 configured in this manner can further miniaturize the hydraulic control unit 100.

[0060]

[0046] Preferably, the connection terminal 80 has a first protrusion 88 extending in the opposite direction from the first arm 81 from the connection point with the first arm 81 at the base 83. In the connection terminal 80 configured in this manner, when the board-side connection portion 86 is press-fitted into the hole 61a of the control board 61, the first protrusion 88 can be held with a jig or the like, thereby aligning the hole 61a with the board-side connection portion 86. Therefore, in the connection terminal 80 configured in this manner, it is easy to press-fit the board-side connection portion 86 into the hole 61a of the control board 61. Therefore, the connection terminal 80 configured in this manner can improve the assembly of the hydraulic control unit 100.

[0061]

[0047] Preferably, the housing-side connection part 87 is disposed between the base 83 and the control board 61. In the connection terminal 80 configured in this manner, the housing-side connection part 87 can be disposed between the control board 61 and the base 110 (below the control board 61 in Fig. 3). This makes it possible to reduce the dimension of the hydraulic control unit 100 in the width direction (the left-right direction on the paper in Fig. 3) compared to when the connection terminal 80 is disposed opposite the end of the control board 61. Therefore, the connection terminal 80 configured in this manner enables the hydraulic control unit 100 to be made smaller.

[0062]

[0048] Preferably, the connection terminal 80 is formed by bending a metal plate. The connection terminal 80 configured in this manner is easy to manufacture, thereby reducing the manufacturing cost of the hydraulic control unit 100.

[0063]

[0049] When the connection terminal 80 is formed by bending a metal plate and two connection terminals 80 are electrically connected to the coil 70, the two connection terminals 80 are preferably arranged in the following position. When the coil 70 and the two connection terminals 80 are observed in a direction along the axis 70a of the coil 70, the two connection terminals 80 approach each other as they move away from the axis 70a of the coil 70 up to the intermediate portion 80a, and then move away from each other as they move away from the axis 70a from the intermediate portion 80a. For example, in the example shown in Figs. 4 and 5, the intermediate portion 80a is arranged in the region from the coil side connection portion 85 to the housing side connection portion 87.

[0064]

[0050] When the housing-side connection portion 87 of the connection terminal 80 is press-fitted into the hole 123 of the housing 120, a jig is required to press the connection portion of the base 83 with the second arm 82 toward the housing 120. At this time, if the two connection terminals 80 are arranged in the above-mentioned orientation, the above-mentioned connection portions of the two connection terminals 80 can be pressed simultaneously with one jig. Furthermore, when the board-side connection portion 86 of the connection terminal 80 is press-fitted into the hole 61a of the control board 61, the control board 61 is pressed toward the board-side connection portion 86 of the connection terminal 80. During this pressing, a jig is required to support the connection portion of the base 83 with the first arm 81 and to receive the pressing force applied to that portion. In this case, when the two connection terminals 80 are arranged in the above-mentioned posture, the above-mentioned connection points of the two connection terminals 80 can be supported simultaneously by one jig.

[0065]

[0051] Furthermore, when the two connection terminals 80 are arranged in the above-mentioned position, the area occupied by the portions of these connection terminals 80 that protrude toward the outer periphery of the coil 70 can be reduced. The occupied area is the area between the portions of these connection terminals 80 that protrude toward the outer periphery of the coil 70, and is an area in which components of the hydraulic control unit 100 cannot be arranged. Therefore, when the two connection terminals 80 are arranged in the above-mentioned position, the hydraulic control unit 100 can be further downsized.

[0052]

[0066] <Modification> Fig. 7 is a side view showing a connection terminal of a modification of the hydraulic control unit according to the embodiment of the present invention. The connection terminal 80 shown in Fig. 7 has a second protrusion 89 extending in the opposite direction from the second arm portion 82 from the connection point of the base 83 with the second arm portion 82. In the connection terminal 80 configured in this manner, when the housing-side connection portion 87 is press-fitted into the hole 123 of the housing 120, the second protrusion 89 can be held with a jig or the like to align the hole 123 with the housing-side connection portion 87. Therefore, in the connection terminal 80 configured in this manner, the housing-side connection portion 87 can be easily press-fitted into the hole 123 of the housing 120. Therefore, the connection terminal 80 configured in this manner can improve the assembly ease of the hydraulic control unit 100.

[0067]

[0053] Fig. 8 is a diagram showing the configuration of a brake system equipped with a modified hydraulic control unit according to an embodiment of the present invention. Some conventional hydraulic control units are configured to return brake fluid released from wheel cylinders to internal flow paths to the master cylinder without a pump. The hydraulic control unit 100 may also be configured to return brake fluid released from wheel cylinders 24 to internal flow paths 40 to the master cylinder 21 without a pump. Such a hydraulic control unit 100 may be configured, for example, as shown in Fig. 8. Specifically, the hydraulic control unit 100 does not include a pump 50 or a motor 51 that drives the pump 50. In the hydraulic control unit 100 configured as described above, when the hydraulic pressure of the brake fluid in the accumulator 28 becomes higher than the hydraulic pressure of the brake fluid in the master cylinder 21, the pressure difference causes the brake fluid in the accumulator 28 to return to the master cylinder 21.

[0068]

[0054] <Effects of the hydraulic pressure control unit> The effects of the hydraulic pressure control unit according to this embodiment will be described.

[0069]

[0055] The hydraulic control unit 100 according to this embodiment is a hydraulic control unit for a brake system 10 that is mounted on a saddle-ride type vehicle 200 and is capable of performing anti-lock brake control. The hydraulic control unit 100 includes a base 110 having an internal flow path 40 that connects a wheel cylinder 24 and a master cylinder 21, a hydraulic pressure regulating valve 25 that opens and closes the internal flow path 40, a coil 70 that drives the hydraulic pressure regulating valve 25, a control board 61 that controls the energization state of the coil 70, a housing 120 that accommodates the control board 61, and a connection terminal 80 that electrically connects the coil 70 and the control board 61. The connection terminal 80 includes a coil side connection portion 85 electrically connected to the coil 70, a first arm portion 81 extending from the base portion 83 toward the control board 61, a board side connection portion 86 provided on the first arm portion 81, pressed into the control board 61, and electrically connected to the control board 61, a second arm portion 82 which is an arm portion different from the first arm portion 81 and extends from the base portion 83 toward the housing 12 〇, and a housing side connection portion 87 provided on the second arm portion 82 and pressed into the housing 12 〇.

[0070]

[0056] As described above, the connection terminal 80 of the hydraulic control unit 100 configured in this manner can ensure a longer error absorption portion than the connection terminal of a conventional hydraulic control unit. Therefore, the hydraulic control unit 100 configured in this manner can suppress bending stress generated in the error absorption portion more than conventional hydraulic control units, and can be made smaller than conventional hydraulic control units.

[0071]

[0057] Although the hydraulic control unit 100 according to this embodiment has been described above, the hydraulic control unit according to the present invention is not limited to the description of this embodiment. The hydraulic control unit according to the present invention may be embodied in only a part of this embodiment.

[0072] [Explanation of symbols]

Claims

[Document name] Scope of claims

1. A hydraulic control unit (100) for a brake system (io) mounted on a saddle-ride type vehicle (200) and capable of performing antilock brake control, comprising: a base (110) having an internal flow path (40) that connects a wheel cylinder (24) and a master cylinder (21); a hydraulic pressure regulating valve (25) that opens and closes the internal flow path (40); a coil (70) that drives the hydraulic pressure regulating valve (25); a control board (61) that controls the state of current flow to the coil (70); a housing (120) that houses the control board (61); and a connection terminal (80) that electrically connects the coil (70) and the control board (61). and the connection terminal (80) comprises: a coil-side connection portion (85) electrically connected to the coil (70); a first arm portion (81) extending from a base portion (83) toward the control board (61); a board-side connection portion (86) provided on the first arm portion (81), press-fitted into the control board (61), and electrically connected to the control board (61); a second arm portion (82) extending from the base portion (83) toward the housing (120), the second arm portion being an arm portion different from the first arm portion (81); and a housing-side connection portion (87) provided on the second arm portion (82) and press-fitted into the housing (120). To ( 1 0 0 ).

2. A hydraulic control unit (100) according to claim 1, wherein the thickness of at least a portion of the region of the first arm portion (81) between the base portion (83) and the board-side connecting portion (86) is thinner than the thickness of the region of the second arm portion (82) between the base portion (83) and the housing-side connecting portion (87).

3. The hydraulic control unit (100) according to claim 1 or claim 2, wherein the connection terminal (80) has a first protrusion (88) extending in a direction opposite to the first arm portion (81) from a connection point of the base portion (83) with the first arm portion (81).

4. The hydraulic control unit (100) according to claim 3, wherein the connection terminal (80) has a second protrusion (89) extending in a direction opposite to the second arm portion (82) from a connection point of the base portion (83) with the second arm portion (82).

5. A hydraulic control unit (100) according to claim 1 or claim 2, wherein the housing-side connection portion (87) is arranged between the base portion (83) and the control board (61).

6. A hydraulic control unit (100) according to claim 1 or claim 2, wherein the connection terminal (80) is formed by bending a metal plate. [Claim ?] The two connection terminals (80) are electrically connected to the coil (70), and when the coil (70) and the two connection terminals (80) are observed in a direction along the axis (70a) of the coil (70), The two connection terminals (80) approach each other as they move away from the axis (70a) up to the intermediate portion (80a), and from the intermediate portion (80a) they move away from the axis (70a). The hydraulic control unit (100) according to claim 6, wherein the hydraulic control units (100) are in a position where they move away from each other as they move apart.

8. When the coil (70) and the two connection terminals (80) are observed in a direction along the axis (70a), The two connection terminals (80) are arranged in the direction away from the axis (70a) in the order of the coil-side connection portion (85), the board-side connection portion (86), and the housing-side connection portion (87). The intermediate portion (80a) is formed by connecting the coil-side connection portion (85) to the housing-side connection portion (87). The hydraulic control unit (100) according to claim 7, wherein the hydraulic control unit (100) is arranged in an area up to 87.

9. A hydraulic control unit (100) according to claim 1 or claim 2, comprising: a pump (50) that returns brake fluid that has been released from the wheel cylinder (24) to the internal flow path (40) to the master cylinder (21); and a motor (51) that drives the pump (50). [Claim 1 ○] A hydraulic control unit (100) according to claim 1 or claim 2, wherein the brake fluid released from the wheel cylinder (24) to the internal flow path (40) is returned to the master cylinder (21) in a pumpless manner.

11. A saddle-ride type vehicle (200) equipped with a hydraulic pressure control unit (100) according to claim 1 or claim 2.

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