Hydraulic braking device, braking equipment and vehicle

Abstract

The invention provides a hydraulic braking device, braking equipment and a vehicle, and relates to the technical field of hydraulic pressure. The hydraulic braking device comprises a body, a piston and a pressure valve assembly. The body is arranged on a vehicle; the body comprises a piston cavity and a connecting port, and the piston cavity is communicated with the brake through the connecting port; the piston is arranged in the piston cavity in a sealed mode, the piston cavity can be used for containing brake fluid, and the piston can move relative to the piston cavity so as to change the size of the piston cavity. The body further comprises a valve set cavity, and at least one part of the pressure valve assembly is arranged in the valve set cavity. The valve group cavity is communicated with the piston cavity, and / or the valve group cavity is communicated with the connector; the pressure valve assembly is used for adjusting the pressure in the valve bank cavity. By means of the hydraulic braking device, the size of the hydraulic braking device can be reduced, and cost is saved.

Description

Technical Field

[0001] This application relates to the field of hydraulic technology, and in particular to a hydraulic braking device, braking equipment and vehicle. Background Technology

[0002] During vehicle operation, the hydraulic braking system generates friction in the brakes through hydraulic transmission according to the driver's braking command, thereby slowing down or stopping the vehicle. In order to reduce the occurrence of vehicle lock-up during braking, an anti-lock braking system is usually added.

[0003] Hydraulic braking devices and anti-lock braking systems in related technologies are large in size and have high production costs when connected due to the inclusion of multiple complex mechanical components and hydraulic pipelines. Summary of the Invention

[0004] This application provides a hydraulic braking device, braking equipment, and vehicle that can reduce the size of the hydraulic braking device and save costs.

[0005] In a first aspect, this application provides a hydraulic braking device for connection to a brake. The hydraulic braking device includes: a body, a piston, and a pressure valve assembly. The body is disposed on a vehicle. The body includes a piston cavity and a connection port, the piston cavity being connected to the brake via the connection port. A piston seal is disposed within the piston cavity, the piston cavity being used to contain brake fluid, and the piston being movable relative to the piston cavity to change the volume of the piston cavity. The body also includes a valve assembly cavity, at least a portion of which is disposed within the valve assembly cavity. The valve assembly cavity is connected to the piston cavity, and / or the valve assembly cavity is connected to the connection port. The pressure valve assembly is used to regulate the pressure within the valve assembly cavity.

[0006] The hydraulic braking device provided in this application includes a piston cavity on its main body. The piston cavity can be used to contain brake fluid. A piston is disposed in the piston cavity. Therefore, when the piston moves relative to the piston cavity, the volume of the piston cavity decreases, and the pressure of the brake fluid contained in the piston cavity increases. Since the piston cavity is connected to the brake through a connection port, the brake fluid can flow to the brake through the connection port. The increased pressure of the brake fluid can provide braking force to the brake, causing the vehicle to decelerate or stop. The main body also includes a valve assembly cavity. At least a part of the pressure valve assembly is disposed in the valve assembly cavity. Since the valve assembly cavity is connected to the piston cavity, when the pressure valve assembly adjusts the pressure in the valve assembly cavity, the pressure in the piston cavity will also change accordingly, thereby adjusting the pressure of the brake fluid in the piston cavity, adjusting the braking force generated by the brake fluid on the brake, and reducing the possibility of wheel lock-up. In one or more cases, the valve assembly cavity is connected to the connection port. Since the piston cavity is connected to the brake through the connection port, by changing the pressure in the valve assembly cavity, the pressure at the connection port can be changed, thereby changing the braking force generated by the brake fluid on the brake, and reducing the possibility of wheel lock-up. This structure allows both the pressure valve assembly for adjusting the braking force and the piston structure for providing braking force to the brake to be housed within the same body, achieving both braking and anti-lock braking effects simultaneously. Compared to related technologies where hydraulic braking devices and anti-lock braking systems require multiple complex mechanical components and hydraulic lines, the hydraulic braking device provided in this application reduces the number of mechanical components and the complexity of the hydraulic braking device's mechanical components and hydraulic lines by simultaneously housing both the pressure valve assembly for adjusting the braking force and the piston structure for providing braking force to the brake within the same body. Therefore, applying the hydraulic braking device provided in this application can reduce the size of the hydraulic braking device and save costs.

[0007] In one possible implementation of this application, the body further includes a storage cavity, which is connected to both the valve assembly cavity and the piston cavity, and can be used to store brake fluid.

[0008] In one possible implementation of this application, the valve assembly cavity includes a first cavity, and the pressure valve assembly includes a pressure reducing valve disposed within the first cavity; the first cavity is in communication with the piston cavity, and / or the first cavity is in communication with a connection port; the pressure reducing valve is used to reduce the pressure within the first cavity.

[0009] In one possible implementation of this application, the liquid inlet of the first cavity is connected to the piston cavity, and / or the liquid inlet of the first cavity is connected to the connection port; the liquid outlet of the first cavity is connected to the storage cavity; the pressure reducing valve can move relative to the first cavity to make the first cavity and the piston cavity in a connected state or a blocked state; and / or the pressure reducing valve can move relative to the first cavity to make the first cavity and the connection port in a connected state or a blocked state.

[0010] In one possible implementation of this application, the pressure reducing valve can move out of the first cavity to reduce the space occupied by the pressure reducing valve within the first cavity.

[0011] In one possible implementation of this application, the valve assembly cavity further includes a second cavity, and the pressure valve assembly further includes a booster valve disposed in the second cavity; the second cavity is connected to the piston cavity, and / or the second cavity is connected to the connection port; the booster valve can move into the second cavity to increase the space occupied by the booster valve in the second cavity.

[0012] In one possible implementation of this application, both the pressure boosting valve and the pressure reducing valve are sealed to the body.

[0013] In one possible implementation of this application, the pressure boosting valve and the pressure reducing valve are solenoid valves.

[0014] In one possible implementation of this application, the pressure valve assembly is disposed on either side of the body in the vehicle's forward direction.

[0015] In one possible implementation of this application, the storage cavity and the piston cavity are connected through a first channel of the body, and when the piston moves relative to the piston cavity to provide pressure to the brake fluid, the outlet of the first channel connecting the piston cavity is closed.

[0016] In one possible implementation of this application, the hydraulic braking device further includes a control unit electrically connected to the pressure valve assembly. The control unit is used to control the movement of the pressure valve assembly within the valve assembly cavity to regulate the pressure within the valve assembly cavity.

[0017] Secondly, this application provides a braking device, which includes a brake and a hydraulic braking device as described in the first aspect, wherein the hydraulic braking device is connected to the brake via a connection port.

[0018] Thirdly, this application provides a vehicle, which includes a wheel speed sensor and a braking device of the second aspect. The wheel speed sensor is used to acquire the wheel rotation speed of the vehicle. The wheel speed sensor is electrically connected to a control unit and is used to transmit commands to the pressure valve assembly of the braking device according to the wheel rotation speed. Attached Figure Description

[0019] Figure 1 A schematic diagram of the hydraulic braking device provided in this application installed on the vehicle handlebars;

[0020] Figure 2 A schematic diagram of the hydraulic braking device provided in this application;

[0021] Figure 3 Exploded view of the hydraulic braking device provided in this application;

[0022] Figure 4 A cross-sectional view (one of) of the hydraulic braking device provided in this application;

[0023] Figure 5 A cross-sectional view (second part) of the hydraulic braking device provided for this application;

[0024] Figure 6 A cross-sectional view (third part) of the hydraulic braking device provided for this application;

[0025] Figure 7 A cross-sectional view (fourth part) of the hydraulic braking device provided for this application;

[0026] Figure 8 A schematic diagram of the working principle of the hydraulic braking device provided in this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Body; 11-Piston cavity; 12-Connecting port; 13-Valve assembly cavity; 131-First cavity; 1311-Inlet; 1312-Outlet; 132-Second cavity; 14-Storage cavity; 141-Groove; 142-Cover; 143-Seal; 144-Screw; 15-Flow channel; 2-Piston; 21-First end; 22-Second end; 23-Elastic element; 3-Pressure valve assembly; 31-Pressure reducing valve; 311-First fixing part; 312-First moving part; 32-Pressure boosting valve; 321-Second fixing part; 322-Second moving part; 33-Electromagnetic coil; 34-Electromagnetic valve cover; 35-Wire; 36-Connector; 37-Valve cover sealing ring; 4-Brake lever; 5-Brake; Y-Vehicle forward direction. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0030] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0031] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0032] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0033] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0034] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0035] With increasing user awareness of safety and a rapidly growing market demand for high safety standards, most vehicles are now equipped with dual-channel hydraulic anti-lock braking systems (ABS). Some electric two-wheelers are expanding into medium and high-speed applications. The inclusion of ABS in electric two-wheelers can improve vehicle safety, especially for motorcycles with engine displacements exceeding 150 cubic centimeters (cc).

[0036] In emergency situations, the ABS system stabilizes the motorcycle by controlling the braking force of each wheel, allowing the driver to better control the motorcycle and perform steering maneuvers while braking, which helps avoid obstacles and maintain vehicle stability. The vehicles provided in this application include electric two-wheelers, motorcycles, etc.

[0037] Reference Figure 1This application provides a vehicle including a wheel speed sensor and a braking device. The wheel speed sensor is used to acquire the wheel rotation speed of the vehicle. The control unit of the braking device is electrically connected to the wheel speed sensor. The control unit is used to transmit commands to the pressure valve assembly 3 of the braking device according to the wheel rotation speed.

[0038] In this embodiment, a wheel speed sensor is used to acquire the real-time wheel rotation speed of the vehicle. The wheel speed sensor is typically mounted on the wheel or drive shaft and senses and measures changes in the magnetic field or magnetic flux during wheel rotation. Wheel speed sensors generally include magnetoelectric wheel speed sensors and Hall effect wheel speed sensors, and a suitable wheel speed sensor can be selected according to the needs of different vehicles.

[0039] In this embodiment, the braking device further includes a pressure valve assembly 3, which is connected to the hydraulic transmission system. The pressure valve assembly 3 is used to adjust the pressure in the brake cylinder, thereby adjusting the braking force transmitted to the brake 5, adjusting the friction between the brake 5 and the wheel, and reducing the possibility of wheel lock-up.

[0040] In this embodiment, the control unit receives wheel speed information from the wheel speed sensor and processes and analyzes this data in real time. Based on the preset algorithm and logic, the control unit can determine the vehicle's driving status and braking requirements. Based on the data processing results, the control unit sends precise instructions to the pressure valve assembly 3 of the braking system to adjust the magnitude and distribution of braking pressure.

[0041] The vehicle provided in this application embodiment can obtain the dynamic changes in the vehicle's wheel speed by real-time monitoring of wheel speed, such as abnormal situations like slippage and wheel lock-up. After this information is transmitted to the control unit of the braking device, the control unit can optimize the distribution of braking force by adjusting the pressure valve assembly 3, thereby reducing wheel lock-up or excessive slippage and effectively improving the stability and safety of the vehicle during emergency braking and driving on slippery roads.

[0042] Reference Figure 1 and Figure 8 This application provides a braking device, which includes a brake 5 and a hydraulic braking device, wherein the hydraulic braking device is connected to the brake 5 through a connection port 12.

[0043] In this embodiment, the most basic function of the braking device is to decelerate and eventually stop the vehicle. When the driver applies the brakes, the braking system generates friction to slow the rotational speed of the wheels, thereby decelerating the vehicle and eventually stopping it. The braking device typically includes a brake 5, a brake booster system, a hydraulic or pneumatic transmission system, a master cylinder, and wheel cylinders, etc.

[0044] In this embodiment, the connector 12 can be an integral part of the hydraulic braking device or a separate part, with the connector 12 connected to the hydraulic braking device. For example, the connector 12 and the hydraulic braking device can use a threaded quick connector, which can be tightened and loosened by rotation, ensuring the reliability of the connection and improving the operating efficiency.

[0045] The braking device provided in this application embodiment has a hydraulic brake 5 connected to the brake 5 via a connection port 12, and the hydraulic brake 5 can provide braking force to the brake 5.

[0046] Hydraulic braking devices and anti-lock braking systems in related technologies are large in size and have high production costs when connected due to the inclusion of multiple complex mechanical components and hydraulic pipelines.

[0047] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 This application provides a hydraulic braking device for connection with a brake 5. The hydraulic braking device includes a body 1, a piston 2, and a pressure valve assembly 3. The main body 1 is mounted on a vehicle. The main body 1 includes a piston chamber 11 and a connection port 12. The piston chamber 11 is connected to the brake 5 via the connection port 12. A piston 2 is sealed within the piston chamber 11, which can contain brake fluid. The piston 2 can move relative to the piston chamber 11 to change the volume of the piston chamber 11. The main body 1 also includes at least a portion of a pressure valve assembly 3 disposed within a valve assembly chamber 13. The valve assembly chamber 13 is connected to the piston chamber 11, and / or the valve assembly chamber 13 is connected to the connection port 12. The pressure valve assembly 3 is used to regulate the pressure within the valve assembly chamber 13, adjusting the braking force generated by the brake fluid on the brake 5, thus reducing wheel lock-up. Alternatively, the valve assembly chamber 13 and the connection port 12 are connected. Since the piston chamber 11 is connected to the brake 5 via the connection port 12, changing the pressure within the valve assembly chamber 13 can change the pressure at the connection port 12, thereby changing the braking force generated by the brake fluid on the brake 5 and reducing wheel lock-up.

[0048] In the embodiments of this application, reference is made to Figure 1 The main body 1 is mounted on the handlebar of the vehicle. At least a portion of the main body 1 can be embedded in the internal structure of the handlebar, minimizing its external space occupation and maintaining a clean appearance. Alternatively, a dedicated bracket or module can be attached to the outside of the handlebar for mounting the main body 1. The main body 1 and the handlebar can also be manufactured as a single unit, forming a unified structure in both function and appearance. The main body 1 can be made of high-strength, corrosion-resistant, and wear-resistant materials such as stainless steel or aluminum alloy.

[0049] In this embodiment, the hydraulic braking device can be connected to the vehicle's lever assembly, which is a transmission device between the brake lever and other parts of the braking system. It is responsible for transmitting the force applied by the rider to the brake lever 4 to the actuators such as the brake pump or brake caliper.

[0050] In the embodiments of this application, reference is made to Figure 1 and Figure 4 The first end 21 of piston 2 is located inside piston cavity 11, and the second end 22 is located outside piston cavity 11. The end of the second end 22 can abut against brake lever 4. When the rider applies force to brake lever 4, brake lever 4 pushes piston 2 into piston cavity 11, increasing the pressure inside piston cavity 11. An elastic element 23 is also provided on the first end 21 of piston 2. When the rider removes the force applied to brake lever 4, elastic element 23 can provide piston 2 with a restoring force to move out of piston cavity 11, thereby reducing the pressure inside piston cavity 11.

[0051] In this embodiment, the piston cavity 11 is a space or region inside the body 1. The shape and size of the piston cavity 11 are typically determined based on the size and shape of the piston 2, so that the piston 2 can move smoothly and effectively within the piston cavity 11. The piston cavity 11 can be used to contain brake fluid. As the piston 2 moves within the piston cavity 11, the volume of the piston cavity 11 can be changed, and the brake fluid can be compressed or released accordingly to generate the braking force required for braking.

[0052] In this embodiment, if the pressure inside the piston chamber 11 increases, the pressure of the brake fluid increases, and the braking force transmitted to the brake 5 will increase; conversely, if the pressure inside the piston chamber 11 decreases, the pressure of the brake fluid decreases, and the braking force transmitted to the brake 5 will decrease.

[0053] In this embodiment, the piston 2 is sealed inside the piston cavity 11. At least one sealing ring can be provided on the circumference of the piston 2, and the sealing ring is tightly fitted to the inner wall of the piston cavity 11 to reduce brake fluid leakage. Alternatively, at least one sealing groove can be provided on the inner wall of the piston cavity 11, and the sealing ring is provided in the sealing groove. The sealing ring is tightly fitted to the outer wall of the piston 2 on the circumference to reduce brake fluid leakage.

[0054] In the embodiments of this application, reference is made to Figure 3 , Figure 6 and Figure 7 The piston cavity 11 is connected to the brake 5 through the connecting port 12. The connecting port 12 can be integrally formed with the body 1, connecting the connecting port 12 and the piston cavity 11; see reference. Figure 3Alternatively, the connection port 12 can be designed separately from the body 1 and connected to the body 1 via a threaded connection or other means, thus connecting the connection port 12 and the piston cavity 11. For example, an intermediate transition component (such as a distribution block, a flow collector, etc.) is provided between the connection port 12 and the piston cavity 11. This component is used to distribute and transmit hydraulic pressure, which can increase the flexibility and maintainability of the system.

[0055] In this embodiment, the valve assembly cavity 13 is a space or region inside the main body 1. The valve assembly cavity 13 is used to house the pressure valve assembly 3 and can also be used to contain brake fluid. The part of the pressure valve assembly 3 used to regulate the pressure inside the valve assembly cavity 13 is located inside the valve assembly cavity 13, while the other part used to control the movement of the pressure valve assembly 3 is located outside the valve assembly cavity 13.

[0056] In this embodiment, the body 1 has a channel between the valve assembly cavity 13 and the piston cavity 11 that can connect the valve assembly cavity 13 and the piston cavity 11; or, the body 1 has channels in the valve assembly cavity 13 that are respectively used to connect the piston cavity 11 and the connection port 12; or the body 1 has a channel between the valve assembly cavity 13 and the connection port 12 to allow brake fluid to flow between the piston cavity 11, the valve assembly cavity 13, and the connection port 12.

[0057] The hydraulic braking device provided in this application embodiment includes a piston cavity 11 on the main body 1. The piston cavity 11 can be used to contain brake fluid. A piston 2 is disposed inside the piston cavity 11. Therefore, when the piston 2 moves relative to the piston cavity 11, the volume inside the piston cavity 11 decreases, and the pressure of the brake fluid contained in the piston cavity 11 increases. Since the piston cavity 11 is connected to the brake 5 through the connection port 12, the brake fluid can flow to the brake 5 through the connection port 12. The increase in the pressure of the brake fluid can provide braking force to the brake 5, so that the vehicle decelerates or stops. The main body 1 also includes a valve assembly cavity 13, with at least a portion of the pressure valve assembly 3 disposed within it. Since the valve assembly cavity 13 is connected to the piston cavity 11, when the pressure valve assembly 3 adjusts the pressure within the valve assembly cavity 13, the pressure within the piston cavity 11 also changes, thereby adjusting the pressure of the brake fluid within the piston cavity 11 and adjusting the braking force generated by the brake fluid on the brake 5, reducing wheel lock-up. Alternatively, the valve assembly cavity 13 may be connected to a connection port 12. Since the piston cavity 11 is connected to the brake 5 via the connection port 12, changing the pressure within the valve assembly cavity 13 alters the pressure at the connection port 12, thereby changing the braking force generated by the brake fluid on the brake 5 and reducing wheel lock-up. This structure allows both the pressure valve assembly 3, which adjusts the braking force, and the piston 2 structure, which provides braking force to the brake 5, to be simultaneously housed within the main body 1, achieving both braking and anti-lock effects simultaneously. Compared to related technologies where hydraulic braking devices and anti-lock braking systems require multiple complex mechanical components and hydraulic lines, the hydraulic braking device provided in this application reduces the number of mechanical components and the complexity of the hydraulic braking device's mechanical components and hydraulic lines by simultaneously incorporating the pressure valve assembly 3 for adjusting the braking force and the piston 2 structure for providing braking force to the brake 5 within the body 1. Therefore, applying the hydraulic braking device provided in this application can reduce the size of the hydraulic braking device and save costs.

[0058] Furthermore, compared to existing technologies that separately install ABS components on the vehicle, the hydraulic braking device provided in this application integrates the pressure valve assembly 3, which adjusts the braking force, with the vehicle's braking system. When it is necessary to add or replace an ABS system on a vehicle, only the body 1 of the original hydraulic braking device needs to be removed and replaced with the body 1 of the hydraulic braking device provided in this application (the body 1 is equipped with the pressure valve assembly 3). Thus, without removing other components of the vehicle, the hydraulic braking device in the vehicle can be replaced with a braking system featuring the ABS system provided in this application. Therefore, the hydraulic braking device provided in this application also facilitates the replacement, addition, and maintenance of the vehicle's ABS system.

[0059] This application provides a hydraulic braking device, with reference to... Figure 4 , Figure 5 , Figure 6 and Figure 7 The main body 1 also includes a storage cavity 14, which is connected to the valve assembly cavity 13 and the piston cavity 11 respectively. The storage cavity 14 can be used to store brake fluid.

[0060] In this embodiment, the storage cavity 14 can be a region and space disposed inside the body 1, or it can be a cavity formed within a structure connected to the body 1. It is used to store brake fluid, provide brake fluid to the piston cavity 11 and valve group cavity 13 when the hydraulic braking device is working, and recover the brake fluid that flows back from the piston cavity 11 and valve group cavity 13 when the hydraulic braking device is not performing braking operation or when the hydraulic braking device is performing anti-lock operation.

[0061] In this embodiment, a one-way valve can be used to connect the storage chamber 14 and the valve assembly chamber 13, allowing the brake fluid in the storage chamber 14 to flow into the piston chamber 11. However, when the pressure in the piston chamber 11 increases, the brake fluid in the piston chamber 11 will not flow back into the storage chamber 14, thereby improving the braking effect of the brake fluid in the piston chamber 11.

[0062] In this embodiment, the storage cavity 14 can be configured as a one-piece closed cavity or an open cavity. For example, see... Figure 3 and Figure 4 The main body 1 has a groove 141, and a cover 142 is placed over the opening of the groove 141, forming a first cavity 131 between the grooves 141. The groove 141 is used to contain brake fluid. A sealing element 143 is also provided between the cover 142 and the groove 141. The cover 142 can be sealed to the main body 1 by screws 144 to reduce brake fluid leakage. The connection between the cover 142 and the main body 1 can also be achieved by other connection methods.

[0063] The hydraulic braking device provided in this application embodiment has a storage chamber 14 that is connected to the valve assembly chamber 13 and the piston chamber 11 respectively. The brake fluid stored in the storage chamber 14 can flow into the valve assembly chamber 13 and the piston chamber 11. When the vehicle braking and anti-lock braking system are working, the brake fluid can achieve the corresponding braking effect by flowing in different chambers.

[0064] Reference Figure 3 , Figure 6 and Figure 7This application provides a hydraulic braking device, wherein the valve assembly 13 includes a first cavity 131, and the pressure valve assembly 3 includes a pressure reducing valve 31, which is disposed in the first cavity 131; the first cavity 131 is connected to the piston cavity 11, and / or the first cavity 131 is connected to the connection port 12; the pressure reducing valve 31 is used to reduce the pressure in the first cavity 131.

[0065] In this embodiment, the valve assembly cavity 13 may contain multiple functional areas or sub-cavities, which can be used to accommodate valve bodies or components with different functions.

[0066] In this embodiment, the pressure valve assembly 3 includes a pressure reducing valve 31, which is used to reduce the pressure within the first cavity 131. The pressure reducing valve 31 can be an electric pressure reducing valve 31, controlling the fluid pressure via an electric motor; or it can be a pneumatic pressure reducing valve 31, controlling the fluid pressure via air or gas pressure. For example, the pneumatic pressure reducing valve 31 can be directly installed within the first cavity 131, with its inlet and outlet correctly connected to the fluid passage of the first cavity 131 to allow brake fluid flow. Depending on the requirements, the pressure reducing valve 31 and the inner wall of the first cavity 131 on the body 1 can be connected by threaded connections or snap-fit ​​methods.

[0067] The hydraulic braking device provided in this application embodiment has a first chamber 131 and a piston chamber 11 connected. The pressure reducing valve 31 reduces the pressure in the first chamber 131, and the pressure in the piston chamber 11 also decreases. The piston chamber 11 is connected to the brake 5 through the connection port 12. That is, when the first chamber 131 and / or the connection port 12 are connected, the pressure reducing valve 31 reduces the pressure in the first chamber 131, and the pressure in the connection port 12 also decreases. Therefore, the braking force transmitted to the brake 5 will be reduced, which can alleviate the phenomenon of vehicle lock-up during braking.

[0068] This application provides a hydraulic braking device, with reference to... Figure 5 and Figure 7 The inlet 1311 of the first cavity 131 is connected to the piston cavity 11, and / or the inlet 1311 of the first cavity 131 is connected to the connection port 12; the outlet 1312 of the first cavity 131 is connected to the storage cavity 14; the pressure reducing valve 31 can move relative to the first cavity 131 to make the first cavity 131 and the piston cavity 11 in a connected state or a blocked state; and / or the pressure reducing valve 31 can move relative to the first cavity 131 to make the first cavity 131 and the connection port 12 in a connected state or a blocked state.

[0069] In this embodiment, the pressure reducing valve 31 is movable relative to the first cavity 131 to allow the first cavity 131 to be in a connected or blocked state with the connection port 12. For example, the body of the pressure reducing valve 31 can be a rotatable component, and the connection or blockage with the connection port 12 of the first cavity 131 is controlled by rotation. When the pressure reducing valve 31 rotates to a certain position, the channel inside the pressure reducing valve 31 aligns with the connection port 12 of the first cavity 131, achieving a connected state; when rotated to another position, the channel is blocked, achieving a blocked state.

[0070] The hydraulic braking device provided in this application embodiment allows the pressure reducing valve 31 to move relative to the first chamber 131, enabling the first chamber 131 and the piston chamber 11 to be in a connected or blocked state. The inlet 1311 of the first chamber 131 is connected to the piston chamber 11, and the outlet 1312 of the first chamber 131 is connected to the storage chamber 14. When the first chamber 131 and the piston chamber 11 are in a connected state, because the piston 2 applies pressure to the brake fluid during braking, the brake fluid flows from the inlet 1311 into the first chamber 131 and then back into the storage chamber 14. The pressure inside the piston chamber 11 decreases accordingly, reducing the pressure on the brake fluid. This reduces the pressure exerted by the brake fluid on the brake 5 when the wheel is about to lock up, allowing the wheel to resume rotation. When the pressure reducing valve 31 blocks the connection between the first chamber 131 and the piston chamber 11, the pressure inside the piston chamber 11 recovers and can continue to increase according to the movement of the piston 2, thereby further increasing the braking force of the brake 5.

[0071] Since the piston cavity 11 is connected to the brake 5 through the connection port 12, the above-mentioned effect can be achieved whether the first cavity 131 is directly connected to the connection port 12 or the first cavity 131 is simultaneously connected to the piston cavity 11 and the connection port 12.

[0072] This application provides a hydraulic braking device in which the pressure reducing valve 31 can move out of the first cavity 131 to reduce the space occupied by the pressure reducing valve 31 in the first cavity 131.

[0073] In this embodiment, the pressure reducing valve 31 can move outward from the first cavity 131. For example, the pressure reducing valve 31 can be a component that can slide along a side wall or the bottom of the first cavity 131. When it is necessary to reduce the space occupied by the pressure reducing valve 31 in the first cavity 131, the pressure reducing valve 31 can be slid outward along the sliding track by manual, electric or pneumatic operation.

[0074] In another example, the pressure reducing valve 31 can be a retractable component, comprising a fixed part and a movable part. The movable part is connected to the fixed part by a spring or the like, allowing it to extend and retract within a certain range. By retracting the movable part towards the fixed part, the space occupied by the pressure reducing valve 31 within the first cavity 131 can be reduced.

[0075] In the hydraulic braking device provided in this application embodiment, when the pressure reducing valve 31 moves outward from the first cavity 131, the space occupied by the pressure reducing valve 31 in the first cavity 131 decreases, the space in the first cavity 131 increases, the pressure in the first cavity 131 decreases, and the brake fluid can flow into the first cavity 131 from the piston cavity 11 through the inlet 1311. The pressure in the piston cavity 11 decreases accordingly, and the pressure on the brake fluid decreases. As a result, when the wheel is about to lock up, the pressure exerted by the brake fluid on the brake 5 decreases, allowing the wheel to resume rotation.

[0076] This application provides a hydraulic braking device, with reference to... Figure 4 , Figure 5 , Figure 6 and Figure 7 The valve assembly 13 also includes a second cavity 132, and the pressure valve assembly 3 also includes a booster valve 32, which is disposed in the second cavity 132. The second cavity 132 is connected to the piston cavity 11, and / or the second cavity 132 is connected to the connection port 12. The booster valve 32 can move into the second cavity 132 to increase the space occupied by the booster valve 32 in the second cavity 132.

[0077] In this embodiment, the valve assembly cavity 13 may contain multiple functional areas or sub-cavities. A pressure boosting valve 32 is provided in the second cavity 132 to increase the pressure within the valve assembly cavity 13. The first cavity 131 and the second cavity 132 are unidirectionally connected, allowing brake fluid to flow unidirectionally from the first cavity 131 into the second cavity 132. This reduces the risk of brake fluid flowing back into the first cavity 131 when the pressure boosting valve 32 increases the pressure within the second cavity 132, thus minimizing its impact on the pressure boosting effect.

[0078] In this embodiment, a one-way valve is used to connect the second cavity 132 and the storage cavity 14 so that brake fluid can enter the second cavity 132 from the storage cavity 14. However, when the pressure boosting valve 32 increases the pressure in the second cavity 132, the brake fluid will not flow back from the second cavity 132 to the storage cavity 14, so that the brake fluid in the pressure boosting valve 32 flows into the piston 2 cavity 11 or the connection port 12, thereby improving the pressure boosting effect of the pressure boosting valve 32.

[0079] In this embodiment, the second cavity 132 is connected to the piston cavity 11, and / or the second cavity 132 is connected to the connection port 12. A flow channel 15 can be provided on the main body 1 to connect the second cavity 132 to the piston cavity 11 and / or the second cavity 132 to the connection port 12, so that brake fluid can flow between the second cavity 132, the piston cavity 11, and the connection port 12. Alternatively, the second cavity 132 can be connected to the piston cavity 11 and / or the connection port 12 via an external pipe or hose.

[0080] In this embodiment, the pressure boosting valve 32 can move into the second cavity 132 to increase the space occupied by the pressure boosting valve 32 within the second cavity 132. For example, the pressure boosting valve 32 can be a rotatable component, and it can be threadedly connected to the inner wall of the second cavity 132. By operating the portion of the pressure boosting valve 32 located outside the second cavity 132, the pressure boosting valve 32 located inside the second cavity 132 can be rotated into the second cavity 132.

[0081] In another embodiment, the pressure booster valve 32 can be a retractable component, including a fixed part and a movable part. The movable part is connected to the fixed part by a spring or the like, and the movable part can extend and retract within a certain range. By extending the movable part toward the fixed part, the space occupied by the pressure booster valve 32 within the second cavity 132 can be increased.

[0082] The hydraulic braking device provided in this application embodiment has a pressure boosting valve 32 disposed in the second cavity 132. When the pressure boosting valve 32 moves into the second cavity 132, it occupies the volume of the second cavity 132, and the pressure in the second cavity 132 increases. Since the second cavity 132 is connected to the piston cavity 11, and / or the second cavity 132 is connected to the connection port 12, and the piston cavity 11 is connected to the brake 5 through the connection port 12, when the pressure in the second cavity 132 increases, the pressure in the piston cavity 11 and the connection port 12 will also increase. Therefore, the braking force transmitted to the brake 5 will increase to provide sufficient braking force.

[0083] This application provides a hydraulic braking device in which both the pressure boosting valve 32 and the pressure reducing valve 31 are sealed to the body 1.

[0084] In this embodiment, since the pressure boosting valve 32 can move relative to the second cavity 132 and the pressure reducing valve 31 can move relative to the first cavity 131, the pressure reducing valve 31 can be provided with a first fixing part 311 and a first moving part 312, and the pressure boosting valve 32 can be provided with a second fixing part 321 and a second moving part 322. The first moving part 312 can move within the first cavity 131, and the second moving part 322 can move within the second cavity 132. The first fixing part 311 and the second fixing part 321 are used to connect with the body 1.

[0085] In this embodiment, the connection between the fixing part and the body 1 can be a threaded connection, a snap-fit ​​connection, or the like. A sealing part can be provided in the area where the fixing part and the body 1 are connected. The material of the sealing part can be selected to have properties such as oil resistance, wear resistance, and temperature resistance. At the same time, metal sealing surfaces or coating sealing technologies can also be used to improve the sealing performance of the area where the fixing part and the body 1 are connected.

[0086] The hydraulic braking device provided in this application embodiment can reduce the leakage of brake fluid from the connection between the pressure boosting valve 32, the pressure reducing valve 31 and the body 1, which would affect the pressure regulation of the piston chamber 11 and the valve group chamber 13, since both the pressure boosting valve 32 and the pressure reducing valve 31 are sealed to the body 1.

[0087] This application provides a hydraulic braking device, wherein the pressure boosting valve 32 and the pressure reducing valve 31 are solenoid valves.

[0088] In the embodiments of this application, reference is made to Figure 3 and Figure 7 At least a portion of the pressure valve assembly 3 is disposed inside the valve assembly cavity 13, and the other portion is exposed outside the body 1. An electromagnetic coil 33 is disposed on the pressure valve assembly 3 exposed outside the body 1. When the electromagnetic coil 33 is energized, it can control the movement of the pressure valve assembly 3.

[0089] In this embodiment, to increase the stability of the electromagnetic coil 33 and provide protection for the electromagnetic coil 33 and the solenoid valve, the pressure valve assembly 3 may further include a solenoid valve cover 34 disposed outside the electromagnetic coil 33. A wire 35 for supplying power to the electromagnetic coil 33 is connected to the solenoid valve cover 34, and the wire 35 is electrically connected to the vehicle's power supply device. The wire 35 is electrically connected to the electromagnetic coil 33 through the solenoid valve cover 34 to supply power to the electromagnetic coil 33.

[0090] In this embodiment, the solenoid valve cover 34 can be connected to the body 1 by means of snap-fit, welding, or other methods. For example, the solenoid valve cover 34 can be installed on the body 1 by means of connector 36. In order to further improve the stability of the pressure valve assembly 3, a valve cover sealing ring 37 can be added between the solenoid coil 33 and the solenoid valve cover 34 to improve the sealing performance between the solenoid coil 33 and the solenoid valve cover 34.

[0091] The hydraulic braking device provided in this application embodiment uses solenoid valves 32 and 31. When the pressure in the valve assembly cavity 13 needs to be adjusted, the electromagnet is energized, which generates a magnetic force to attract the valve core, causing the pressure boosting valve 32 and the pressure reducing valve 31 to open. When the power is off, the magnetic force disappears, causing the pressure boosting valve 32 and the pressure reducing valve 31 to close. During this process, the response time of the pressure boosting valve 32 and the pressure reducing valve 31 to the electromagnetic field is short, which can quickly control the movement of the valve body.

[0092] This application provides a hydraulic braking device, wherein the pressure valve assembly 3 is disposed on any side of the body 1 in the vehicle's forward direction Y.

[0093] In this embodiment, the hydraulic braking device is mounted on the vehicle handlebars and connected to a lever assembly on the handlebars. The brake lever 4 of the lever assembly is used to push the piston 2 to move when the driver performs the braking operation. Therefore, referring to... Figure 1 The hydraulic braking device and the handle can be arranged side by side along the Y direction perpendicular to the vehicle's forward direction, so that the brake lever 4 can push the piston 2 to move.

[0094] To save space and reduce the space occupied by the hydraulic braking device on the handle, the pressure valve assembly 3 can be positioned on either side of the main body 1 in the vehicle's forward direction Y. This can also be understood as positioning the pressure valve assembly 3 on the side of the main body 1 facing the driver or away from the driver. This avoids occupying too much space in the handle perpendicular to the vehicle's forward direction Y, allowing for a more compact structure for the hydraulic braking device and handle. This structure also allows the pressure valve assembly 3 to avoid contact with the brake lever 4 in the direction of its movement. When the driver applies pressure to the brake lever 4, the contact between the brake lever 4 and the pressure valve assembly 3 is reduced, thus minimizing the impact of the brake lever 4's movement under pressure on the pressure valve assembly 3.

[0095] The hydraulic braking device provided in this application embodiment can reduce the space occupied by the pressure valve assembly 3 on the handlebar by setting the pressure valve assembly 3 on any side of the body 1 in the forward direction Y of the vehicle, making the handlebar structure more compact and smaller in size.

[0096] This application provides a hydraulic braking device in which the storage chamber 14 and the piston chamber 11 are connected through a first channel of the body 1. When the piston 2 moves relative to the piston chamber 11 to provide pressure to the brake fluid, the outlet of the first channel connected to the piston chamber 11 is closed.

[0097] In this embodiment, the closure of the outlet of the first channel connecting the piston cavity 11 can be achieved by the piston 2 moving relative to the piston cavity 11 to provide pressure to the brake fluid, and the piston 2 blocking the outlet of the first channel connecting the piston cavity 11 through its own structure when it reaches a certain position. Alternatively, a switch can be provided at the outlet of the first channel connecting the piston cavity 11, controlled by the movement of the piston 2; when the piston 2 moves relative to the piston cavity 11 to provide pressure to the brake fluid, the switch closes.

[0098] In the hydraulic braking device provided in this application embodiment, when the piston 2 is not moving, brake fluid can flow from the storage chamber 14 into the piston chamber 11. When the piston 2 moves, pressure needs to be provided to the brake fluid. Closing the outlet of the storage chamber 14 to the piston chamber 11 can reduce brake fluid backflow and improve the braking effect.

[0099] This application provides a hydraulic braking device, which also includes a control unit. The control unit is electrically connected to the pressure valve assembly 3 and is used to control the movement of the pressure valve assembly 3 within the valve assembly cavity 13 to regulate the pressure within the valve assembly cavity 13.

[0100] In this embodiment, the control unit may include a processor, a controller input interface, and an output interface. The input interface can be connected to the wheel speed sensor to transmit the wheel speed information acquired by the wheel speed sensor to the processor of the control unit. The output interface connects the controller and the pressure valve assembly 3. The processor processes the wheel speed information to obtain information for controlling the pressure valve assembly 3 to adjust the pressure. The controller transmits the control information to the pressure valve assembly 3 through the output interface, and the pressure valve assembly 3 executes accordingly to adjust the pressure.

[0101] The hydraulic braking device provided in this application embodiment, through the electrical connection between the control unit and the pressure valve assembly 3, can precisely control the movement of the pressure valve assembly 3 within the valve assembly cavity 13, and automatically regulate the pressure within the valve assembly cavity 13, thereby improving the performance, stability and automation of the braking system.

[0102] Figure 8 This illustration shows the working principle of the hydraulic braking device provided in the embodiments of this application, while referring to... Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The working process of the hydraulic braking device provided in this application embodiment is as follows: When the driver needs to brake during driving, he applies force to the brake lever 4. The brake lever 4 pushes the piston 2 of the hydraulic braking device into the piston cavity 11, reducing the pressure in the piston cavity 11. Consequently, the brake fluid in the piston cavity 11 is compressed, and the brake fluid transmits the braking force to the brake 5, which then performs the braking action. When the wheel speed sensor detects the wheel speed information during braking, it transmits it to the control unit. When the control unit detects that the wheel is in or about to lock up, the control unit controls the pressure reducing valve 31 in the pressure valve assembly 3 to work, reducing the pressure in the first cavity 131. Since the first cavity 131 and the piston cavity 11 and / or the connection port 12 are connected, the pressure in the piston cavity 11 and / or the connection port 12 decreases, thereby reducing the pressure of the brake fluid in the piston cavity 11 and / or the connection port 12. The braking force of the brake 5 decreases, the wheel temporarily resumes rotation, and the wheel lockup phenomenon is alleviated. After the wheels resume rotation, the control unit stops the pressure reducing valve 31 in the pressure valve assembly 3 and activates the pressure boosting valve 32, increasing the pressure in the second chamber 132, thereby increasing the braking force of the brake 5 and causing the brake 5 to perform the braking action. To reduce the dangerous situation caused by the vehicle locking up, the above-mentioned hydraulic braking device operates continuously during the braking phase until the vehicle comes to a complete stop.

[0103] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A hydraulic braking device for connection to a brake, characterized in that, include: The body is mounted on a vehicle; the body includes a piston cavity and a connection port, the piston cavity being connected to the brake via the connection port; A piston, which is sealed within a piston cavity, the piston cavity being used to contain brake fluid, and the piston being movable relative to the piston cavity to change the volume of the piston cavity; The pressure valve assembly further includes a valve group cavity, at least a portion of which is disposed within the valve group cavity; the valve group cavity is connected to the piston cavity, and / or the valve group cavity is connected to the connection port; the pressure valve assembly is used to regulate the pressure within the valve group cavity.

2. The hydraulic braking device according to claim 1, characterized in that, The main body also includes a storage cavity, which is connected to the valve assembly cavity and the piston cavity respectively, and the storage cavity can be used to store the brake fluid.

3. The hydraulic braking device according to claim 2, characterized in that, The valve assembly includes a first cavity, and the pressure valve assembly includes a pressure reducing valve disposed within the first cavity; the first cavity is connected to the piston cavity, and / or the first cavity is connected to the connection port; the pressure reducing valve is used to reduce the pressure within the first cavity.

4. The hydraulic braking device according to claim 3, characterized in that, The liquid inlet of the first cavity is connected to the piston cavity, and / or the liquid inlet of the first cavity is connected to the connection port; the liquid outlet of the first cavity is connected to the storage cavity; The pressure reducing valve may move relative to the first cavity to make the first cavity and the piston cavity in a connected or blocked state; and / or the pressure reducing valve may move relative to the first cavity to make the first cavity and the connection port in a connected or blocked state.

5. The hydraulic braking device according to claim 3, characterized in that, The pressure reducing valve can move out of the first cavity to reduce the space occupied by the pressure reducing valve within the first cavity.

6. The hydraulic braking device according to claim 3, characterized in that, The valve assembly cavity further includes a second cavity, and the pressure valve assembly further includes a booster valve, which is disposed in the second cavity; the second cavity is connected to the piston cavity, and / or the second cavity is connected to the connection port; the booster valve can move into the second cavity to increase the space occupied by the booster valve in the second cavity.

7. The hydraulic braking device according to claim 6, characterized in that, Both the booster valve and the pressure reducing valve are sealed to the main body.

8. The hydraulic braking device according to claim 6, characterized in that, The booster valve and the pressure reducing valve are solenoid valves.

9. The hydraulic braking device according to any one of claims 1 to 8, characterized in that, The pressure valve assembly is located on either side of the body in the direction of vehicle travel.

10. The hydraulic braking device according to any one of claims 3 to 8, characterized in that, The storage cavity and the piston cavity are connected through a first channel of the body. When the piston moves relative to the piston cavity to provide pressure to the brake fluid, the outlet of the first channel connecting the piston cavity is closed.

11. The hydraulic braking device according to any one of claims 1 to 8, characterized in that, It also includes a control unit, which is electrically connected to the pressure valve assembly. The control unit is used to control the movement of the pressure valve assembly within the valve assembly cavity to regulate the pressure within the valve assembly cavity.

12. A braking device, characterized in that, include: Brake; The hydraulic braking device according to any one of claims 1 to 11, wherein the hydraulic braking device is connected to the brake through the connection port.

13. A vehicle, characterized in that, include: Wheel speed sensors are used to obtain the wheel speed of the vehicle; The braking device of claim 12; the wheel speed sensor is electrically connected to the control unit and is used to transmit commands to the pressure valve assembly of the braking device according to the wheel speed.

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