Braking device, braking apparatus, and vehicle

Abstract

The application provides a brake device, a braking device and a vehicle, and relates to the technical field of brake devices. The brake device can reduce the number of parts of the brake device, thereby facilitating the reduction of the volume and weight of the brake device and the reduction of the cost of the brake device. The brake device comprises a base body, a piston and a control assembly. The base body can be arranged on a vehicle body. The base body comprises a piston cavity, a storage cavity and a connecting port. The storage cavity is in communication with the piston cavity. The connecting port is used for being connected with a brake. The storage cavity is used for storing a braking medium. The piston is matched with the piston cavity. The piston is slidingly arranged in the piston cavity. The base body further comprises a mounting cavity matched with the control assembly. The mounting cavity is in communication with the piston cavity, the connecting port and the storage cavity respectively. At least a part of the control assembly is arranged in the mounting cavity. The control assembly can move relative to the base body to block the communication between the mounting cavity and the connecting port, to block the communication between the piston cavity and the mounting cavity and / or to communicate the connecting port and the storage cavity through the mounting cavity.

Description

Technical Field

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

[0002] Anti-lock braking system (ABS) is widely used in various vehicles. ABS can prevent the wheels from locking up during emergency braking, thereby maintaining the vehicle's handling and directional stability and improving driving safety. Utility Model Content

[0003] This application provides a braking device, braking equipment, and vehicle that can reduce the number of parts in the braking device, thereby reducing the size and weight of the braking device and lowering its cost.

[0004] In a first aspect, this application provides a braking device, comprising: a base, a piston, and a control assembly; wherein the base is disposed on a vehicle body, the base includes a piston chamber, a storage chamber, and a connection port, the storage chamber communicating with the piston chamber, the connection port being used to connect with a brake, and the storage chamber being used to store a braking medium; the piston is matched with the piston chamber, and the piston is slidably disposed in the piston chamber; the base further includes a mounting cavity matched with the control assembly, the mounting cavity communicating with the piston chamber, the connection port, and the storage chamber respectively, at least a portion of the control assembly being disposed in the mounting cavity, and the control assembly being movable relative to the base to block the communication between the mounting cavity and the connection port, and to block the communication between the piston chamber and the mounting cavity, and / or to connect the connection port and the storage chamber through the mounting cavity.

[0005] The braking device provided in this application embodiment, because its base includes a piston chamber and a connecting port, facilitates the placement of the piston within the base through the piston chamber and the sealing connection between the brake and the braking device through the connecting port. Furthermore, an mounting cavity is provided within the base to facilitate the installation of the control component within it. Simultaneously, the control component is configured to move relative to the base. By changing the position of the control component within the mounting cavity, the communication or blockage between the mounting cavity and the connecting port, the piston chamber and the mounting cavity, and the mounting cavity and the storage cavity can be altered. This allows for control of the flow direction and flow path of the braking medium within the braking device. Compared to related technologies that use a pressure pump and a pressure pump to control the pressure between the braking device and the brake, the braking device provided in this application embodiment, through its control component, can simultaneously execute braking actions, maintain pressure in the brake for continuous braking, and depressurize the brake to prevent wheel lock-up. Therefore, the braking device provided in this application embodiment can reduce the number of parts, thereby reducing the size and weight of the braking device and lowering its cost.

[0006] In one possible implementation of this application, the control component includes a brake, the mounting cavity includes a first mounting cavity, the brake is disposed in the first mounting cavity, the first mounting cavity is in communication with the piston cavity, the brake is capable of switching between a first state and a second state relative to the substrate, when the brake is in the first state, the piston cavity and the connection port are in communication through the first mounting cavity, when the brake is in the second state, the brake blocks the piston cavity and the connection port.

[0007] In one possible implementation of this application, the storage cavity is connected to the first mounting cavity; the brake can also switch from a second state to a third state relative to the substrate. When the brake is in the third state, the brake blocks the piston cavity from the connection port and connects the connection port to the first mounting cavity, so that the connection port is connected to the storage cavity.

[0008] In one possible implementation of this application, the substrate further includes a second mounting cavity and a first channel, the second mounting cavity being connected to the first mounting cavity via the first channel, and the second mounting cavity being connected to a storage cavity; when the braking member is in a first state and a second state, both the first mounting cavity and the first channel are blocked; when the braking member is in a third state, the first mounting cavity is connected to the first channel; the braking device further includes an energy storage component disposed in the second mounting cavity, the energy storage component being used to openably block the first channel and the second mounting cavity; when the pressure in the first channel is greater than the pressure applied to the first channel by the energy storage component, the energy storage component moves relative to the substrate to make the first channel connected to the second mounting cavity.

[0009] In one possible implementation of this application, the energy storage component includes a slider and a first elastic member. The slider is slidably disposed in a second mounting cavity and is sealed to the cavity wall of the second mounting cavity. The first elastic member abuts against the slider and is used to apply a force toward the first channel to the slider.

[0010] In one possible implementation of this application, the second mounting cavity and the storage cavity are connected through a second channel; the braking device further includes a first check valve disposed in the second channel; when the combined force of the pressure in the first channel and the pressure applied to the first channel by the energy storage component is greater than the opening pressure of the first check valve, the first check valve opens, and the first channel and the second channel are connected through the second mounting cavity.

[0011] In one possible implementation of this application, the mounting cavity includes a third mounting cavity, and the substrate also includes a third channel. The third mounting cavity is connected to the second channel, and the third mounting cavity is connected to the storage cavity through the third channel. The control component also includes an oil return element, and the braking device also includes a second check valve. The oil return element is disposed in the third mounting cavity and is used to push the braking medium in the third mounting cavity into the third channel. The second check valve is disposed in the third channel. When the pressure of the braking medium applied to the third mounting cavity by the oil return element is greater than the opening pressure of the second check valve, the second check valve opens, and the third mounting cavity and the storage cavity are connected through the third channel.

[0012] In one possible implementation of this application, the oil return component includes a first coil, a first fixing member, a first moving member, and a first pushing member; the first fixing member is fixedly disposed in the third mounting cavity and located at one end of the third mounting cavity near the third channel; the first moving member is slidably disposed on the base and located at one end of the first fixing member away from the third channel; the first coil is sleeved on the first fixing member and the first moving member; the first pushing member is slidably disposed on the first fixing member, one end of the first pushing member abuts against the first moving member, and the other end extends into the third mounting cavity.

[0013] In one possible implementation of this application, the braking component includes a body, a first sealing member, and a driving assembly; the body is disposed in a first mounting cavity and has a first flow channel communicating with a piston cavity; the driving assembly is connected to the body and surrounds it to form a second flow channel communicating with a connection port and with the first flow channel; the first sealing member is located between the second flow channel and the first flow channel and is connected to the driving assembly; when the driving assembly drives the first sealing member to move to the first flow channel, the first flow channel is blocked from the second flow channel.

[0014] In one possible implementation of this application, the braking component further includes a second sealing component; the driving assembly also has a third flow channel, which communicates with the second flow channel and is connected to the storage cavity; the second sealing component is disposed between the second flow channel and the third flow channel and is connected to the driving assembly; under the action of the driving assembly, the second sealing component abuts against the third flow channel to block the second flow channel from the third flow channel; when the driving assembly drives the first sealing component to move to the first flow channel, the driving assembly can also drive the second sealing component to move away from the third flow channel so that the third flow channel communicates with the storage cavity.

[0015] In one possible implementation of this application, the driving component includes a second coil, a second fixing member, a second moving member, a second pushing member, and a second elastic member; the second fixing member is fixedly disposed in the first mounting cavity and connected to the body, at one end of the first flow channel; the second moving member is slidably disposed on the base and located on the side of the second fixing member away from the body; the second coil is sleeved on the second fixing member and the second moving member; the second flow channel passes through the second fixing member and the second moving member, the second pushing member is slidably disposed within the second flow channel, and the first sealing member is disposed at the end of the second pushing member near the first flow channel; the second elastic member is disposed at the end of the second pushing member near the third flow channel, and the second sealing member is disposed at the end of the second elastic member away from the second pushing member, and under the force of the second elastic member, the second sealing member abuts against the third flow channel.

[0016] Secondly, this application provides a braking device, which includes: a brake and a braking apparatus provided in any one of the first aspects; wherein the braking apparatus is connected to the brake via a connection port.

[0017] The braking device provided in this application includes any of the braking devices provided above, which reduces the number of parts in the braking device, thereby reducing the size and weight of the braking device and lowering its cost.

[0018] Thirdly, this application provides a vehicle comprising: a vehicle body, wheel speed sensors, and the braking device provided in the second aspect above; wherein, the wheel speed sensors are disposed on the vehicle body for acquiring the rotational speed of the wheels mounted on the vehicle body; brakes are disposed corresponding to the wheels, the braking device is disposed on the vehicle body, and the wheel speed sensors are electrically connected to the controller of the braking device.

[0019] The vehicle provided in this application, by including the aforementioned braking device, can reduce the number of parts in the braking system, thereby reducing its size and weight and lowering wheel costs. Furthermore, wheel speed sensors can monitor wheel rotation speed in real time, acquiring dynamic changes in wheel speed, such as slippage or wheel lock-up. Based on this information, the braking system can be controlled to perform corresponding pressurization, pressure holding, or depressurization actions, adjusting the braking force applied to the wheels to an appropriate range. This reduces the occurrence of wheel lock-up and slippage, improving vehicle stability and safety during emergency braking and on slippery surfaces. Attached Figure Description

[0020] Figure 1 Schematic diagram of the braking device provided in this application Figure 1 ; Figure 2 An exploded structural diagram of the braking device provided in this application; Figure 3 Schematic diagram of the braking device provided in this application Figure 2 ; Figure 4 Schematic cross-sectional view of the braking device provided in this application Figure 1 ; Figure 5 Schematic cross-sectional view of the braking device provided in this application Figure 2 ; Figure 6 Schematic cross-sectional view of the braking device provided in this application Figure 3 ; Figure 7 Schematic cross-sectional view of the braking device provided in this application Figure 4 ; Figure 8 Provided for this application Figure 5 A magnified structural diagram of part A in the middle; Figure 9 A schematic diagram of the braking device provided in this application.

[0021] Explanation of reference numerals in the attached figures: 1-Base; 11-Piston chamber; 12-Connecting port; 13-First mounting chamber; 14-Second mounting chamber; 15-Third mounting chamber; 16-Storage chamber; 17-First channel; 18-Second channel; 19-Third channel; 10-Fourth channel; 2-Piston; 3-Brake component; 31-Body; 32-First sealing component; 33-Drive assembly; 331-Second coil; 332-Second fixing component; 333-Second moving component; 334-Second pushing component; 335-Second elastic component; 336-Third elastic component; 337-Second fixing sleeve; 338-Retaining component; 339-Pressure... 330-Flow channel component; 34-Second sealing component; 35-First flow channel; 36-Second flow channel; 37-Third flow channel; 4-Energy storage component; 41-Sliding component; 42-First elastic component; 43-Adjusting component; 5-First one-way valve; 6-Return oil component; 61-First coil; 62-First fixing component; 63-First moving component; 64-First pushing component; 65-First fixing sleeve; 7-Second one-way valve; 81-Brake handle; 82-Sealing cover; 83-Sealing ring; 84-Screw; 85-Cover body; 86-Brake; 87-Connector; 9-Wheel; Y-Radial; Z-Axial. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] As electric two-wheelers expand into medium and high-speed ranges, from a safety perspective, the configuration of ABS on electric two-wheelers is becoming increasingly important.

[0029] ABS enhances vehicle safety in several ways: Improved braking performance: ABS significantly reduces braking distance and reduces vehicle skidding on wet or gravel roads, thus increasing driving safety. Enhanced vehicle stability: In emergencies, ABS allows drivers to steer while braking, helping to avoid obstacles and maintain vehicle stability. Increased driver confidence: ABS's working principle ensures the brakes maintain optimal braking performance, giving drivers more confidence in handling various complex road conditions. Reduced tire lock-up: ABS monitors wheel speed and, before wheel lock-up, adjusts brake pressure and controls braking force balance to prevent lock-up and maintain vehicle control. Improved braking effectiveness: ABS controls the braking force of each tire to make the vehicle more stable, allowing drivers to better control the vehicle in emergency situations and reducing accidents. Enhanced safety performance: Compared to traditional braking systems, ABS offers better safety performance. When drivers face dangerous situations, ABS makes the vehicle easier to control, reducing the occurrence of accidents. Reduced traffic accident rate: According to statistics, vehicles equipped with ABS can reduce the traffic accident rate by up to 38%.

[0030] This application provides a braking device that is connected to a brake to form a braking system. This braking device reduces the number of parts, thus reducing its size and weight, and consequently lowering its cost. (See also...) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 Schematic diagram of the braking device provided in this application Figure 1 , Figure 2 This is an exploded structural diagram of the braking device provided in this application. Figure 3 Schematic diagram of the braking device provided in this application Figure 2 , Figure 4 Schematic cross-sectional view of the braking device provided in this application Figure 1 , Figure 5 Schematic cross-sectional view of the braking device provided in this application Figure 2 The braking device provided in the embodiments of this application will be described below with reference to the examples in the accompanying drawings.

[0031] The braking device provided in this application includes: a base 1, a piston 2, and a control assembly; wherein, the base 1 can be disposed on a vehicle body, the base 1 includes a piston chamber 11, a storage chamber 16, and a connection port 12, the storage chamber 16 communicates with the piston chamber 11, the connection port 12 is used to connect with a brake 86, and the storage chamber 16 is used to store braking medium; the piston 2 is matched with the piston chamber 11, and the piston 2 is slidably disposed in the piston chamber 11; the base 1 also includes a mounting cavity matched with the control assembly, the mounting cavity communicates with the piston chamber 11, the connection port 12, and the storage chamber 16 respectively, at least a part of the control assembly is disposed in the mounting cavity, the control assembly can move relative to the base 1 to block the communication between the mounting cavity and the connection port 12, and block the communication between the piston chamber 11 and the mounting cavity, and / or connect the connection port 12 and the storage chamber 16 through the mounting cavity.

[0032] In this embodiment, the base 1 can provide a mounting foundation and support for other components in the braking device, and can also be used to mount the braking device on a vehicle, such as mounting the braking device on the handlebars of the vehicle body. For example, the base 1 can be made of metal, composite materials, etc., and can be manufactured by processes such as casting, injection molding, and machining.

[0033] For example, a piston chamber 11, a connection port 12, and a storage chamber 16 can be provided within the base 1. The piston chamber 11 can be configured as a blind hole in an approximately cylindrical shape. The connection port 12 can be provided at the edge of the base 1. For example, the connection port 12 can be a threaded hole to facilitate the fixed and sealed connection of the connector 87 of the pipeline connected to the brake 86 to the base 1 through the threaded hole.

[0034] In this embodiment, a piston 2 can be disposed within the piston cavity 11. The piston 2 can be an approximately cylindrical structure that matches the piston cavity 11. The piston 2 can be slidably disposed within the piston cavity 11, and a sealing ring or similar device can be fitted onto the piston 2 to seal and slide it in connection with the piston cavity 11. The piston cavity 11 can store braking medium, which can be alcohol-based brake fluid, mineral oil-based brake fluid, synthetic brake fluid, etc.

[0035] For example, a brake handle 81 can be rotatably mounted on the base 1 and connected to the piston 2. In this way, by holding the brake handle 81, the piston 2 can be moved to slide within the piston chamber 11, thereby driving the flow of the braking medium.

[0036] In another example, a storage cavity 16 can be provided on the base 1 to store the braking medium. For example, in the vertical direction, the storage cavity 16 can be provided at the upper end of the base 1, and the piston cavity 11 can be provided on the lower side of the storage cavity 16. A through hole can be provided on the cavity wall between the storage cavity 16 and the piston cavity 11. The through hole can be located within the stroke range of the piston 2 in the piston cavity 11. The storage cavity 16 and the piston cavity 11 can be connected through the through hole, so that the braking medium in the storage cavity 16 can flow into the piston cavity 11. After the piston 2 slides relative to the piston cavity 11, the through hole can be blocked by the piston 2, so that a completely sealed space can be formed in the piston cavity 11, and pressure can be applied to the braking medium in the piston cavity 11.

[0037] In another example, a sealing ring 83 and a sealing cover 82 can be provided for the storage cavity 16. The sealing cover 82 and the sealing ring 83 can be fixed to the opening of the storage cavity 16 by screws 84 to seal the opening of the storage cavity 16.

[0038] In this embodiment, a mounting cavity can be provided on the base 1, and the mounting cavity can be connected to the piston cavity 11, the connection port 12, and the storage cavity 16 through different channels or pipes. A control component capable of generating motion can be provided in the mounting cavity; for example, the control component may include an electromagnetic component, a motor, etc.

[0039] For example, under normal braking conditions, the piston chamber 11 and the connection port 12 can be connected through the mounting cavity, thereby allowing the braking medium in the piston chamber 11 to be pushed into the connection port 12 through the mounting cavity. When a stable pressure needs to be continuously applied to the brake 86 connected to the braking device, the movement of the control component within the mounting cavity can be used to block the connection between the piston chamber 11 and the mounting cavity, and also to block the connection between the connection port 12 and the mounting cavity, thus preventing the braking medium at the connection port 12 from flowing back and keeping it within the brake 86. When it is necessary to reduce the pressure in the brake 86 connected to the braking device, the movement of the control component within the mounting cavity can be used to block the connection between the piston chamber 11 and the mounting cavity, and to connect the connection port 12 with the mounting cavity and the storage cavity 16 with the mounting cavity, thereby allowing the braking medium at the connection port 12 to flow back through the mounting cavity to the storage cavity 16, thus reducing the pressure in the brake 86.

[0040] The braking device provided in this application embodiment includes a base 1 with a piston chamber 11 and a connection port 12. This facilitates the placement of the piston 2 within the base 1 via the piston chamber 11 and the sealing connection of the brake 86 to the braking device via the connection port 12. Furthermore, a mounting cavity is provided within the base 1 to facilitate the installation of the control component within it. The control component is configured to move relative to the base 1. By changing the position of the control component within the mounting cavity, the communication or blockage between the mounting cavity and the connection port 12, the piston chamber 11 and the mounting cavity, and the mounting cavity and the storage cavity 16 can be altered. This allows for the control of the flow direction of the braking medium and whether the braking medium flows through a channel. Compared to related technologies, which use a pressure pump and a pressure pump in the braking device to control the pressure between the braking device and the brake 86, the braking device provided in this application embodiment can, through the control component, both execute the braking action, maintain the pressure of the brake 86 for continuous braking, and depressurize the brake 86 to prevent wheel 9 from locking up. Therefore, the braking device provided in this application embodiment can reduce the number of parts in the braking device, thereby reducing the size and weight of the braking device and lowering its cost. In some possible embodiments of this application, the control component includes a brake element 3, and the mounting cavity includes a first mounting cavity 13. The brake element 3 is disposed in the first mounting cavity 13, which is connected to the piston cavity 11. The brake element 3 can switch between a first state and a second state relative to the base 1. When the brake element 3 is in the first state, the piston cavity 11 and the connection port 12 are connected through the first mounting cavity 13. When the brake element 3 is in the second state, the brake element 3 blocks the piston cavity 11 from the connection port 12.

[0041] In this embodiment, a first mounting cavity 13 can be provided in the base 1, and the first mounting cavity 13 can be connected to both the piston cavity 11 and the connection port 12, that is, the piston cavity 11 and the connection port 12 can be connected through the first mounting cavity 13. A braking element 3 can be provided in the first mounting cavity 13 to change the state within the first mounting cavity 13.

[0042] For example, the brake element 3 can be configured to move relative to the base 1, thereby allowing the brake element 3 to be in at least a first state or a second state through its movement. For instance, in the first state, the brake element 3 is connected to the piston chamber 11 and the first mounting chamber 13, and the first mounting chamber 13 is connected to the connection port 12. In this state, the braking medium in the piston chamber 11 can flow through the first mounting chamber 13 to the connection port 12. In the second state, the piston chamber 11 is connected to the first mounting chamber 13, but the connection between the first mounting chamber 13 and the connection port 12 is blocked by the brake element 3. In this state, the braking medium in the piston chamber 11 cannot flow through the first mounting chamber 13 to the connection port 12, and the braking medium at the connection port 12 cannot flow to the first mounting chamber 13.

[0043] The braking device provided in this application embodiment, by configuring the brake element 3 to switch between a first state and a second state, allows the brake element 3 to be controlled in the first state when braking is required. This enables the piston chamber 11 and the connection port 12 to communicate through the first mounting cavity 13, allowing the braking medium in the piston chamber 11 to flow through the first mounting cavity 13 to the connection port 12, thereby achieving braking action. After the wheel speed decreases, the brake element 3 can be controlled in the second state, blocking the communication between the connection port 12 and the first mounting cavity 13. This prevents the braking medium in the brake 86 from flowing back to the connection port 12, thus maintaining pressure in the brake 86 and achieving stable and continuous braking action. Compared to related technologies that use a pressure pump and a pressure pump in the braking device to control the pressure between the braking device and the brake 86, the braking device provided in this application embodiment can achieve both braking action and pressure maintenance in the brake 86 through a single brake element 3. Therefore, the braking device provided in this application embodiment can reduce the number of parts in the braking device, thereby reducing the size and weight of the braking device and lowering its cost.

[0044] In some possible embodiments of this application, such as Figure 2 and Figure 4 As shown, the storage cavity 16 is connected to the first mounting cavity 13; the brake member 3 can also switch from the second state to the third state relative to the base 1. When the brake member 3 is in the third state, the brake member 3 blocks the piston cavity 11 from the connection port 12 and connects the connection port 12 to the first mounting cavity 13 so that the connection port 12 is connected to the storage cavity 16.

[0045] In this embodiment, other pipelines can be installed in the base 1 to connect the first mounting cavity 13 and the storage cavity 16. The brake member 3 can also be configured to be in a third state relative to the base 1 during its movement relative to the base 1. This allows the brake member 3 to switch from a second state to a third state. In the third state, the brake member 3 can keep the piston cavity 11 and the connection port 12 blocked, while connecting the connection port 12 to the first mounting cavity 13. This allows the connection port 12 to connect to the storage cavity 16 via the first mounting cavity 13, enabling the braking medium flowing through the connection port 12 to the brake 86 to flow back into the storage cavity 16 via the connection port 12 and the first mounting cavity 13, thereby reducing the braking force applied to the wheel 9.

[0046] The braking device provided in this application embodiment connects both the storage chamber 16 and the piston chamber 11 to the first mounting chamber 13, and the brake element 3 is configured to switch from a second state to a third state. When the braking force applied to the wheel 9 by the braking device is too large, causing the wheel 9 to stop rotating, the brake element 3 can be controlled to immediately switch from the second state to the third state. This allows the braking medium to flow back into the storage chamber 16 through the connection port 12 and the first mounting chamber 13, thereby reducing the pressure applied to the brake 86 and reducing the braking force, thus reducing the risk of the wheel 9 locking up. The brake element 3 in this application embodiment can switch between the first, second, and third states. A single brake element 3 can control the pressurization (pushing the braking medium to the connection port 12 via the piston 2), pressure holding (continuously preventing the braking medium from flowing back at the connection port 12), and pressure reduction (allowing the braking medium at the connection port 12 to flow back into the storage chamber 16), which is beneficial for further reducing the number of components in the braking device.

[0047] In some possible embodiments of this application, reference is made to Figure 6 , Figure 6 Schematic cross-sectional view of the braking device provided in this application Figure 3 The base 1 also includes a second mounting cavity 14 and a first channel 17. The second mounting cavity 14 is connected to the first mounting cavity 13 through the first channel 17, and the second mounting cavity 14 is connected to the storage cavity 16. When the braking member 3 is in the first state and the second state, both the first mounting cavity 13 and the first channel 17 are blocked. When the braking member 3 is in the third state, the first mounting cavity 13 is connected to the first channel 17. The braking device also includes an energy storage component 4, which is disposed in the second mounting cavity 14. The energy storage component 4 is used to openably block the first channel 17 and the second mounting cavity 14. When the pressure in the first channel 17 is greater than the pressure applied to the first channel 17 by the energy storage component 4, the energy storage component 4 moves relative to the base 1 to make the first channel 17 connected to the second mounting cavity 14.

[0048] In this embodiment, a second mounting cavity 14 can be provided in the substrate 1, and a first channel 17 can be provided between the second mounting cavity 14 and the first mounting cavity 13. The first channel 17 can be a duct extending from the substrate 1. One end of the first channel 17 can be connected to the first mounting cavity 13, and the other end of the first channel 17 can be connected to the second mounting cavity 14. The second mounting cavity 14 can be connected to the storage cavity 16. For example, a duct connecting the second mounting cavity 14 and the storage cavity 16 can be provided in the substrate 1, or a pipe connecting the second mounting cavity 14 and the storage cavity 16 can be provided outside the substrate 1.

[0049] For example, when the brake member 3 is in the first state and the second state, the brake member 3 can block the communication between the first mounting cavity 13 and the first channel 17. When the brake member 3 is in the third state, the first mounting cavity 13 and the first channel 17 are in a connected state.

[0050] In this embodiment, an energy storage component 4 matching the second mounting cavity 14 can be provided in the second mounting cavity 14 to control the braking medium flowing back to the storage cavity 16 through the first channel 17. For example, the energy storage component 4 can be configured to produce elastic deformation, and a part of the energy storage component 4 can abut against the end of the second mounting cavity 14 connected to the first channel 17, while another part of the energy storage component 4 can abut against the plug or against the cavity wall of the second mounting cavity 14.

[0051] For example, when the energy storage component 4 is in its normal state (not subjected to pressure applied through the first channel 17), the energy storage component 4 can block the end connecting the second mounting cavity 14 and the first channel 17 to block the connection between the first channel 17 and the second mounting cavity 14. When the brake component 3 is in the third state, and the brake medium flows back from the connection port 12 through the first mounting cavity 13 to the first channel 17, the pressure in the first channel 17 increases until the pressure in the first channel 17 is greater than the elastic force of the energy storage component 4 itself. At this time, the energy storage component 4 moves away from the first channel 17. At this time, the first channel 17 is connected to the storage cavity 16 through the second mounting cavity 14. The brake medium flows back to the storage cavity 16, which reduces the pressure of the brake medium at the connection port 12 (brake 86), thereby reducing the braking force.

[0052] The braking device provided in this application embodiment, since the second mounting cavity 14 is connected to the first mounting cavity 13 through the first channel 17, and an energy storage component 4 is provided in the second mounting cavity 14, when the brake member 3 is in the third state, the energy storage component 4 can control the blocking or connection between the first channel 17 and the second mounting cavity 14, thereby controlling the flow of the braking medium returning from the connection port 12 through the first mounting cavity 13, the first channel 17 and the second mounting cavity 14 to the storage cavity 16. Compared to directly connecting the first mounting cavity 13 and the storage cavity 16 through the first channel 17, etc., by controlling the opening and closing between the first channel 17 and the storage cavity 16 through the energy storage component 4, the braking medium can be returned in a controllable manner, thereby controlling the pressure applied to the brake 86 to decrease at the required rate, which is beneficial to improving the stability of the control of the braking force applied to the wheel 9 by the braking device.

[0053] In some possible embodiments of this application, such as Figure 6 As shown, the energy storage component 4 includes a slider 41 and a first elastic member 42. The slider 41 is slidably disposed in the second mounting cavity 14 and is sealed to the cavity wall of the second mounting cavity 14. The first elastic member 42 abuts against the slider 41 and is used to apply a force to the slider 41 toward the first channel 17.

[0054] In this embodiment, the energy storage component 4 can be configured to include a slider 41 and a first elastic member 42. For example, the slider 41 can be configured as a disc shape matching the shape of the second mounting cavity 14. If the second mounting cavity 14 is a circular hole, the slider 41 can be configured as a matching disc shape, and a sealing ring can be fitted on the slider 41 to seal the connection between the slider 41 and the cavity wall of the second mounting cavity 14. The first elastic member 42 can be made of a material capable of elastic deformation. For example, the first elastic member 42 can be a compression spring, a rubber block, etc. The first elastic member 42 can be disposed at the end of the slider 41 away from the first channel 17. For example, the end of the first elastic member 42 away from the slider 41 can be fixed to the cavity wall of the second mounting cavity 14, so that the first elastic member 42 applies a force toward the first channel 17 to the slider 41, thereby causing the end face of the slider 41 to abut against the bottom wall of the second mounting cavity 14 and blocking the first channel 17.

[0055] For example, an adjusting member 43 can be provided for the second mounting cavity 14. For instance, an internal thread can be provided on the inner wall of the opening edge of the second mounting cavity 14, and an external thread matching the internal thread can be provided on the adjusting member 43. The adjusting member 43 is then sealed at the opening of the second mounting cavity 14 via a threaded connection to block the second mounting cavity 14. One end of the first elastic member 42, away from the sliding member 41, can be abutted against the adjusting member 43. By adjusting the position of the adjusting member 43 within the second mounting cavity 14, the compression amount of the first elastic member 42 can be adjusted, thereby changing the pressure exerted by the energy storage component 4 on the first channel 17.

[0056] The braking device provided in this application embodiment includes a sliding member 41 and a first elastic member 42. The sliding member 41 can be slid in the second mounting cavity 14 to block or connect the first channel 17 with the second mounting cavity 14. The first elastic member 42 can apply an elastic force to the sliding member 41, so as to control the pressure of the braking medium flowing back in the first channel 17 when the first channel 17 is connected to the second mounting cavity 14 by adjusting the compression amount of the first elastic member 42.

[0057] In some possible embodiments of this application, such as Figure 6 As shown, the second mounting cavity 14 and the storage cavity 16 are connected through the second channel 18; the braking device also includes a first check valve 5, which is disposed in the second channel 18; when the pressure in the first channel 17 and the pressure applied to the first channel 17 by the energy storage component 4 are greater than the opening pressure of the first check valve 5, the first check valve 5 opens, and the first channel 17 and the second channel 18 are connected through the second mounting cavity 14.

[0058] In this embodiment, a channel serving as the second channel 18 can be provided in the substrate 1, or a pipe serving as the second channel 18 can be provided outside the substrate 1. One end of the second channel 18 is connected to the storage cavity 16, and the other end is connected to the second mounting cavity 14.

[0059] For example, a first check valve 5 can be provided in the second channel 18 to control the one-way flow between the second mounting cavity 14 and the second channel 18. For instance, the first check valve 5 may include a first spring, a first steel ball, and a first valve body. The first valve body can be fixed inside the second channel 18. A tapered through-hole with an inner diameter smaller than that of the first steel ball is provided within the first valve body, with the smaller end of the tapered through-hole facing the second mounting cavity 14. The first spring can be positioned at the end of the first steel ball away from the second mounting cavity 14, so that the first steel ball is pressed against the tapered through-hole by the first spring. In this way, the first check valve 5 can stably block the flow from the second channel 18 to the second mounting cavity 14. When the pressure on the first steel ball is greater than the thrust exerted by the first spring on the first steel ball, the first check valve 5 opens, and the second mounting cavity 14 is connected to the second channel 18.

[0060] For example, when the pressure of the braking medium in the first channel 17 applied to the sliding member 41 is greater than the thrust applied to the sliding member 41 by the first elastic member 42, the sliding member 41 slides away from the first channel 17, thereby allowing the braking medium in the first channel 17 to flow through the second mounting cavity 14 to the first channel 17. At this time, the opening pressure of the first check valve 5 (first steel ball) is the resultant force of the pressure provided by the braking medium in the first channel 17 and the thrust applied to the sliding member 41 by the first elastic member 42. When this resultant force is greater than the opening pressure, the first check valve 5 opens, and the braking medium in the first channel 17 can flow through the second mounting cavity 14 and the second channel 18 to the storage cavity 16.

[0061] The braking device provided in this application embodiment, due to the presence of a first one-way valve 5 in the second channel 18, can prevent the braking medium in the storage chamber 16 from flowing into the second mounting chamber 14. Furthermore, the cooperation between the first one-way valve 5 and the energy storage component 4 can control the pressure on the braking medium in the first channel 17 when it is connected to the second mounting chamber 14, thereby improving the reliability of controlling the braking medium flowing back into the storage chamber 16 through the first channel 17.

[0062] In some possible embodiments of this application, reference is made to Figure 7 , Figure 7 Schematic cross-sectional view of the braking device provided in this application Figure 4 .like Figure 6 and Figure 7As shown, the mounting cavity includes a third mounting cavity 15, and the base 1 also includes a third channel 19. The third mounting cavity 15 is connected to the second channel 18, and the third mounting cavity 15 is connected to the storage cavity 16 through the third channel 19. The control component also includes an oil return element 6, and the braking device also includes a second check valve 7. The oil return element 6 is disposed in the third mounting cavity 15 and is used to push the braking medium in the third mounting cavity 15 into the third channel 19. The second check valve 7 is disposed in the third channel 19. When the pressure of the braking medium applied to the third mounting cavity 15 by the oil return element 6 is greater than the opening pressure of the second check valve 7, the second check valve 7 opens, and the third mounting cavity 15 and the storage cavity 16 are connected through the third channel 19.

[0063] In this embodiment, a third mounting cavity 15 and a third channel 19 can be provided in the base 1. The third channel 19 can be provided between the third mounting cavity 15 and the storage cavity 16 so that the third mounting cavity 15 and the storage cavity 16 are connected through the third channel 19.

[0064] In this embodiment, a second one-way valve 7 can be provided within the third channel 19 to control the one-way communication from the third mounting cavity 15 to the third channel 19. For example, the second one-way valve 7 may include a second spring, a second steel ball, and a second valve body. The second valve body can be fixed within the third channel 19 at one end near the storage cavity 16. A tapered through-hole with an inner diameter smaller than that of the second steel ball is provided within the second valve body, with the smaller end of the tapered through-hole facing the third mounting cavity 15. The second spring can be positioned at the end of the second steel ball away from the third mounting cavity 15, so that the second steel ball is pressed against the tapered through-hole by the second spring. In this way, the second one-way valve 7 can achieve stable blocking of the connection between the storage cavity 16 and the third channel 19. When the pressure on the second steel ball is greater than the thrust exerted by the second spring on the second steel ball, the second one-way valve 7 opens, and the third mounting cavity 15 communicates with the storage cavity 16 through the third channel 19.

[0065] In this embodiment, a return oil component 6 can be provided in the third mounting cavity 15 to allow the braking medium in the second channel 18, the third mounting cavity 15, and the third channel 19 to flow through the second one-way valve 7 and be pushed into the storage cavity 16. For example, the return oil component 6 can be configured to be a movable structure, meaning that a portion of the return oil component 6 can move within the third mounting cavity 15. As the return oil component 6 moves from the third mounting cavity 15 toward the second one-way valve 7, the space in the third mounting cavity 15 decreases, thereby applying pressure to the braking medium within the third mounting cavity 15. When the pressure of the braking medium in the third mounting cavity 15 exceeds the thrust applied by the second spring to the second steel ball, the second one-way valve 7 opens, thus pushing the braking medium in the third mounting cavity 15 into the storage cavity 16 through the return oil component 6.

[0066] For example, the brake element 3 and the return oil element 6 can be installed in adjacent areas on the base 1, with a portion of the brake element 3 located outside the first mounting cavity 13 and a portion of the return oil element 6 located outside the third mounting cavity 15. Matching covers 85 can be provided for the brake element 3 and the return oil element 6, and the covers 85 can be fixed to the base 1 by screws 84 to seal the brake element 3 and the return oil element 6 on the base 1. A sealing ring 83 can also be provided between the cover 85 and the base 1 to improve the sealing performance between the cover 85 and the base 1.

[0067] The braking device provided in this application embodiment connects the third mounting cavity 15 and the storage cavity 16 through a third channel 19, and a second one-way valve 7 is provided in the third channel 19. The opening or closing of the second one-way valve 7 can be controlled by the oil return component 6 provided in the third mounting cavity 15, thereby pushing the braking medium that flows back to the third mounting cavity 15 through the second channel 18 into the storage cavity 16. For example, when it is detected that the speed of the wheel 9 is about to reach zero while the vehicle body is still high, it is necessary to quickly and significantly reduce the pressure applied to the brake 86 through the braking device. At this time, the oil return component 6 can be controlled to perform an oil return action to quickly push the braking medium in the third mounting cavity 15 into the storage cavity 16, thereby quickly reducing the pressure in the second channel 18. This allows the braking medium that has passed through the first channel 17, the second mounting cavity 14, and the first one-way valve 5 to quickly and smoothly flow back to the third mounting cavity 15, thereby achieving timely reduction of the pressure of the brake 86.

[0068] In some possible embodiments of this application, such as Figure 6 and Figure 7 As shown, the oil return component 6 includes a first coil 61, a first fixing member 62, a first moving member 63, and a first pushing member 64; the first fixing member 62 is fixedly disposed in the third mounting cavity 15 and is located at one end of the third mounting cavity 15 near the third channel 19; the first moving member 63 is slidably disposed on the base 1 and is located at one end of the first fixing member 62 away from the third channel 19; the first coil 61 is sleeved on the first fixing member 62 and the first moving member 63; the first pushing member 64 is slidably disposed on the first fixing member 62, one end of the first pushing member 64 abuts against the first moving member 63, and the other end extends into the third mounting cavity 15.

[0069] In this embodiment, the oil return component 6 can be configured as a structure that generates movement through electromagnetic action. For example, a first fixing component 62, a first moving component 63, and a first pushing component 64 can be provided. A portion of the first fixing component 62 can be fixedly disposed within the third mounting cavity 15, and a through hole matching the first pushing component 64 can be provided on the first fixing component 62. The first pushing component 64 can be inserted into the first fixing component 62. The first pushing component 64 can be a rod-shaped structure, and one end of the first pushing component 64 can extend into the third mounting cavity 15. The first moving component 63 can be slidably disposed on the base 1, and the first moving component 63 is located at the end of the first fixing component 62 away from the third mounting cavity 15.

[0070] For example, a matching first fixing sleeve 65 can be provided for the first fixing member 62 and the first moving member 63. The first fixing sleeve 65 can be barrel-shaped, with one open end of the first fixing sleeve 65 fitted onto the first fixing member 62 and fixedly connected to it. The first moving member 63 can be disposed inside the first fixing sleeve 65, and the first moving member 63 can be clearance-fitted with the first fixing sleeve 65 so that the first moving member 63 can slide relative to the first fixing member 62 within the first fixing sleeve 65. For example, both the first fixing member 62 and the first moving member 63 can be configured as approximately cylindrical structures, and both can be made of materials with good magnetic permeability, such as soft magnetic materials like low-carbon steel, silicon steel, or alloy steel. The first pushing member 64 can be made of hard plastic, etc., and can be sealed and slidably connected to the first fixing member 62, with the other end of the first pushing member 64 detachably abutting against the first moving member 63.

[0071] In another example, a first coil 61 can be provided outside the first fixing sleeve 65. The first coil 61 can be sleeved on the first fixing sleeve 65, and the first coil 61 can surround at least a portion of the first moving member 63 and at least a portion of the first fixing member 62. In this way, when the first coil 61 is energized, both the first fixing member 62 and the first moving member 63 can generate magnetic fields. Since the magnetic poles at opposite ends of the first fixing member 62 and the first moving member 63 are opposite, the first fixing member 62 can generate a magnetic attraction force on the first moving member 63, causing the first moving member 63 to move towards the first fixing member 62, thereby driving the first pushing member 64 to move into the third mounting cavity 15.

[0072] The braking device provided in this application embodiment includes a return oil component 6 comprising a matching first coil 61, a first fixing member 62, and a first moving member 63. Applying current to the first coil 61 generates a magnetic field in the first fixing member 62 and the first moving member 63, causing them to approach each other under magnetic force. This allows the first moving member 63 to drive the first pushing member 64, which slides through the first fixing member 62, to move relative to the third mounting cavity 15. Since the return oil component 6 generates movement relative to the third mounting cavity 15 through electric and magnetic fields, it reduces the number of parts in the return oil component 6 and improves the sensitivity and timeliness of its return oil action, thereby enhancing the stability and reliability of the braking device.

[0073] In some possible embodiments of this application, reference is made to Figure 8 , Figure 8 Provided for this application Figure 5 An enlarged structural diagram of part A. (See diagram below.) Figure 5 and Figure 8 As shown, the braking component 3 includes a body 31, a first sealing component 32, and a drive assembly 33. The body 31 is disposed in the first mounting cavity 13 and has a first flow channel 35, which communicates with the piston cavity 11. The drive assembly 33 is connected to the body 31 and forms a second flow channel 36, which communicates with the connection port 12 and the first flow channel 35. The first sealing component 32 is located between the second flow channel 36 and the first flow channel 35 and is connected to the drive assembly 33. When the drive assembly 33 drives the first sealing component 32 to move to the first flow channel 35, the first flow channel 35 is blocked from the second flow channel 36.

[0074] In this embodiment, a body 31 and a drive assembly 33 matching the first mounting cavity 13 can be provided. For example, both the body 31 and the drive assembly 33 can be set to an approximately cylindrical shape. The body 31 and the drive assembly 33 can be arranged along the axial direction Z of the first mounting cavity 13, and the body 31 and the drive assembly 33 can be fixedly connected by means of bonding, welding, etc. The body 31 can be fixed to one end of the first mounting cavity 13 near the storage cavity 16 by means of threaded connection, snap-fit, bonding, etc., so as to fix the body 31 and the drive assembly 33 in the first mounting cavity 13.

[0075] For example, a first flow channel 35 can be provided through the body 31, and the axial direction Z of the first flow channel 35 can be parallel to the axial direction Z of the first mounting cavity 13. A second flow channel 36 can be provided at one end of the drive assembly 33 near the body 31. For example, a portion of the second flow channel 36 extends along the axial direction Z of the first mounting cavity 13 to communicate with the first flow channel 35, and another portion of the second flow channel 36 can extend along the radial direction Y of the first mounting cavity 13 to communicate with the corresponding fourth channel 10. The fourth channel 10 is located between the first mounting cavity 13 and the connection port 12. The connection port 12 and the first mounting cavity 13 can be connected through the fourth channel 10, thereby enabling the second flow channel 36 to communicate with the connection port 12.

[0076] In another example, a first sealing member 32 can be fixedly disposed at one end of the drive assembly 33 near the body 31. For example, the first sealing member 32 can be a sphere that is directly larger than the first flow channel 35. The drive assembly 33 can be configured to move along the axial direction Z of the first mounting cavity 13. In this way, after the drive assembly 33 drives the first sealing member 32 to move along the axial direction Z until it abuts against the opening of the first flow channel 35, it can block the first flow channel 35 and the second flow channel 36, thereby preventing the braking medium at the connection port 12 from flowing into the piston cavity 11 through the second flow channel 36 and the first flow channel 35, thus achieving pressure holding of the brake 86. After the drive assembly 33 drives the first sealing member 32 to move along the Z axis until it separates from the opening of the first flow channel 35, the first flow channel 35 can be connected to the second flow channel 36. After the piston 2 moves in the piston chamber 11, the braking medium in the piston chamber 11 can flow through the first flow channel 35, the second flow channel 36, and the fourth channel 10 to reach the connection port 12, thereby pressurizing the brake 86.

[0077] The braking device provided in this application embodiment includes a brake component 3 comprising a body 31 and a drive assembly 33. A first flow channel 35 communicating with the piston chamber 11 can be provided on the body 31, and a second flow channel 36 can be provided between the drive assembly 33 and the body 31. After the brake component 3 is installed in the first mounting cavity 13, the piston chamber 11 and the connection port 12 can be connected through the first flow channel 35 and the second flow channel 36. Furthermore, a first sealing component 32 matching the first flow channel 35 is provided on the drive assembly 33. The drive assembly 33 can drive the first sealing component 32 to move towards the first flow channel 35, thereby sealing the first flow channel 35. This facilitates control of the backflow of the braking medium through the first flow channel 35, and thus achieves reliable pressure maintenance for the brake 86 connected to the connection port 12 (ensuring the brake 86 continuously provides stable braking force).

[0078] In some possible embodiments of this application, the braking member 3 further includes a second blocking member 34; the driving assembly 33 also has a third flow channel 37, which communicates with the second flow channel 36 and is connected to the storage cavity 16; the second blocking member 34 is disposed between the second flow channel 36 and the third flow channel 37 and is connected to the driving assembly 33; under the action of the driving assembly 33, the second blocking member 34 abuts against the third flow channel 37 to block the second flow channel 36 and the third flow channel 37; when the driving assembly 33 drives the first blocking member 32 to move to the first flow channel 35, the driving assembly 33 can also drive the second blocking member 34 to move away from the third flow channel 37 so that the third flow channel 37 communicates with the storage cavity 16.

[0079] In this embodiment, a third flow channel 37 can be provided in the drive assembly 33, with one end of the third flow channel 37 connected to the first channel 17 and the other end of the third channel 19 connected to the second channel 18. The portion of the third flow channel 37 near the second flow channel 36 can be configured as a variable-diameter channel, such as a portion of the third flow channel 37 being configured as a tapered channel. Correspondingly, a matching second sealing member 34 can be provided within the tapered channel portion of the third flow channel 37; for example, the second sealing member 34 can be configured as a sphere.

[0080] For example, the second sealing member 34 can be connected to a portion of the drive assembly 33, so that the drive assembly 33 can push the second sealing member 34 to abut against the opening of the third flow channel 37 near the second flow channel 36, thereby sealing the third flow channel 37 and blocking the communication between the second flow channel 36 and the third flow channel 37. Thus, when the first flow channel 35 and the second flow channel 36 are connected, the braking medium in the piston chamber 11, after flowing from the first flow channel 35 into the second flow channel 36, can only flow into the fourth channel 10 (connection port 12) and cannot flow into the third flow channel 37. When the first flow channel 35 and the second flow channel 36 are blocked by the first sealing member 32, the braking medium in the second flow channel 36 (at the connection port 12) cannot flow into the third flow channel 37, thereby achieving continuous and stable pressure maintenance for the brake 86.

[0081] In another example, the drive assembly 33 can drive the first sealing member 32 to abut against the first flow channel 35 and drive the second sealing member 34 to move away from the third flow channel 37, thereby blocking the first flow channel 35 from the second flow channel 36 and connecting the second flow channel 36 with the third flow channel 37. At this time, the braking medium at the connection port 12 can flow to the storage cavity 16 through the second flow channel 36 and the third flow channel 37, thereby reducing the pressure on the brake 86.

[0082] The braking device provided in this application embodiment includes a third flow channel 37 connected to the second flow channel 36 by the drive assembly 33. A matching second sealing member 34 is provided in the third flow channel 37. The drive assembly 33 can drive the second sealing member 34 to seal the third flow channel 37, and the drive assembly 33 can drive the first sealing member 32 to seal the first flow channel 35, thereby achieving stable pressure holding for the brake 86 connected to the connection port 12. Furthermore, by configuring the drive assembly 33 to simultaneously drive the first sealing member 32 to seal the first flow channel 35 and to move the second sealing member 34 away from the third flow channel 37, the brake member 3 can block the piston chamber 11 from the connection port 12 and connect the connection port 12 to the storage chamber 16, thereby achieving stable pressure reduction for the brake 86 connected to the connection port 12. Thus, the same brake member 3 can control the pressurization, pressure holding, and pressure reduction functions of the brake 86 connected to the connection port 12, simplifying the structure of the braking device.

[0083] In some possible embodiments of this application, such as Figure 8 As shown, the drive assembly 33 includes a second coil 331, a second fixing member 332, a second moving member 333, a second pushing member 334, and a second elastic member 335; the second fixing member 332 is fixedly disposed in the first mounting cavity 13 and connected to the body 31, at one end of the first flow channel 35; the second moving member 333 is slidably disposed on the base 1 and located on the side of the second fixing member 332 away from the body 31; the second coil 331 is sleeved on the second fixing member 332 and the second moving member 333; the second flow channel 334... 6. The second fixing member 332 and the second moving member 333 pass through the second pushing member 334, which slides through the second flow channel 36. The first sealing member 32 is disposed at the end of the second pushing member 334 near the first flow channel 35. The second elastic member 335 is disposed at the end of the second pushing member 334 near the third flow channel 37. The second sealing member 34 is disposed at the end of the second elastic member 335 away from the second pushing member 334. Under the force of the second elastic member 335, the second sealing member 34 abuts against the third flow channel 37.

[0084] In this embodiment, the driving component 33 can be configured to generate motion through electromagnetic action. For example, the driving component 33 can be configured to include a second fixing member 332, a second moving member 333, a second pushing member 334, and a second coil 331. A portion of the second fixing member 332 can be fixedly disposed within the first mounting cavity 13, and the second fixing member 332 can be connected to the body 31. The second moving member 333 can be slidably disposed on the base 1, with the second moving member 333 located at the end of the second fixing member 332 away from the body 31. A portion of the second flow channel 36 can be disposed on the second fixing member 332, and another portion of the second flow channel 36 can be disposed on the second moving member 333. The second flow channel 36 can penetrate through the second fixing member 332 and the second moving member 333. A portion of the second flow channel 36 can be configured as a channel that matches the second pusher 334, thereby allowing the second pusher 334 to pass through the second flow channel 36. The second pusher 334 can be a rod-shaped structure, allowing one end of the second pusher 334 to extend to a position close to the first flow channel 35. There is a gap between the second pusher 334 and the sidewall of the second flow channel 36 to keep the second flow channel 36 unobstructed.

[0085] For example, one end of the second fixing member 332 can be fixedly connected to the first mounting cavity 13. A matching second fixing sleeve 337 can be provided for the second fixing member 332 and the second moving member 333. The second fixing sleeve 337 can be barrel-shaped, with one open end of the second fixing sleeve 337 fitted onto the second fixing member 332 and fixedly connected to it. The second moving member 333 can be disposed inside the second fixing sleeve 337, and the second moving member 333 can be clearance-fitted with the second fixing sleeve 337 so that the second moving member 333 can slide relative to the second fixing member 332 in the second fixing sleeve 337.

[0086] For example, both the second fixing member 332 and the second moving member 333 can be configured as approximately cylindrical structures. Both the second fixing member 332 and the second moving member 333 can be made of materials with good magnetic permeability, such as soft magnetic materials like low-carbon steel, silicon steel, and alloy steel. The second pushing member 334 can be made of materials such as hard plastic, copper, and aluminum. A convex ring can be provided in the part of the rod-shaped second pushing member 334 located inside the second moving member 333. Correspondingly, the second flow channel 36 inside the second moving member 333 can be configured as a stepped hole. This stepped hole includes two openings, with the opening closer to the second fixing member 332 having a smaller diameter and the opening farther from the second fixing member 332 having a larger diameter. This allows the convex ring on the second pushing member 334 to be located in the larger diameter part of the stepped hole, thereby enabling the second moving member 333 to drive the second pushing member 334 to move in the axial direction Z away from the first flow channel 35.

[0087] In another example, a flow channel 330 can be provided within the second fixed sleeve 337, with a portion of the flow channel 330 located at the end of the second moving member 333 away from the second fixed member 332. A third flow channel 37 corresponding to the second flow channel 36 can be provided on the flow channel 330. For example, clearance channels (not shown in the figure) can be provided on the second fixed member 332 and the second moving member 333, such as... Figure 8 As shown, in a direction perpendicular to the paper and inwards, the clearance channel can be set on the portion of the second fixed member 332 and the second moving member 333 located behind the second flow channel 36. The clearance channel can penetrate the second moving member 333 along the Z-axis and extend on the second fixed member 332 to correspond to the first channel 17. Another portion of the flow channel member 330 can extend into the clearance channel. Another portion of the third flow channel 37 can be set on the portion of the flow channel member 330 located in the clearance channel (with clearance fit to the clearance channel), so that the third flow channel 37 does not pass through the second fixed sleeve 337 but extends through the second moving member 333 and the second fixed member 332 to the position corresponding to the first channel 17.

[0088] In another example, the second sealing member 34 can be fixed to one end of the second pushing member 334 near the first flow channel 35. A second elastic member 335 can be provided at one end of the second pushing member 334 located within the second moving member 333. For example, the second elastic member 335 can be a compression spring. One end of the second elastic member 335 can be fixed to the second pushing member 334, and the second sealing member 34 can be fixed to the other end of the second elastic member 335 near the third flow channel 37. For instance, a retaining member 338 can be provided between the second elastic member 335 and the second sealing member 34. The retaining member 338 is slidably disposed within the second flow channel 36 in the second moving member 333. The second sealing member 34 can be fixed to one end of the retaining member 338 near the third flow channel 37. For example, the retaining member 338 can be in the form of a stepped shaft, comprising two mandrels fixed together. The outer diameter of the mandrel closer to the second elastic member 335 is larger, which can be greater than the outer diameter of the second elastic member 335, while the outer diameter of the mandrel farther from the second elastic member 335 is smaller. A pressure ring 339 can be fixedly installed at one end of the second flow channel 36 of the second moving part 333 near the third flow channel 37. The inner diameter of the pressure ring 339 is smaller than the outer diameter of the mandrel with the larger outer diameter on the retaining member 338. The mandrel with the smaller outer diameter of the retaining member 338 slides through the pressure ring 339, and the second sealing member 34 is fixed on the mandrel with the smaller outer diameter of the retaining member 338. The pressure ring 339 can be manufactured separately and then fixed to the second moving part 333 by means of threaded connection, bonding, welding, etc. The pressure ring 339 can also be integrally formed with the second moving part 333.

[0089] In another example, a third elastic member 336 can be provided between the second fixed member 332 and the second moving member 333. For instance, the third elastic member 336 can be sleeved on the middle portion of the second pushing member 334, and the third elastic member 336 can abut against the second fixed member 332 and the second moving member 333 along the axial direction Z, respectively. For example, the second elastic member 335 can be a compression spring. The third elastic member 336 can also be provided at other positions between the second fixed member 332 and the second moving member 333.

[0090] In another example, a second coil 331 can be provided outside the second fixed sleeve 337. The second coil 331 can be sleeved on the second fixed sleeve 337, and the second coil 331 can surround at least a portion of the second moving member 333 and at least a portion of the second fixed member 332. When the second coil 331 is energized, both the second fixed member 332 and the second moving member 333 can generate magnetic fields. The magnetic poles at opposite ends of the second fixed member 332 and the second moving member 333 are opposite. The second fixed member 332 can generate a magnetic attraction force on the second moving member 333, causing the second moving member 333 to move closer to the second fixed member 332. The magnitude of the magnetic attraction force generated by the second fixed member 332 on the second moving member 333 can be controlled by controlling the magnitude of the current applied to the second coil 331, thereby controlling the distance the second moving member 333 moves along the Z-axis towards the second fixed member 332.

[0091] Thus, under normal conditions (when the braking device is not in use), the second moving member 333 is in the first position (farthest position) away from the second fixed member 332 along the axial direction Z under the action of the second elastic member 335. At this time, the second moving member 333 drives the second pushing member 334 to be in the position away from the first flow channel 35 along the axial direction Z through the cooperation of the stepped hole and the convex ring on the second pushing member 334, thereby making the second sealing member 34 also in the position away from the first flow channel 35, so that the first flow channel 35 and the second flow channel 36 are connected.

[0092] When it is necessary to block the connection between the first flow channel 35 and the second flow channel 36, a first current can be applied to the second coil 331, so that the second fixing member 332 generates a first magnetic attraction force on the second moving member 333. At this time, the second moving member 333 moves a first distance along the axial direction Z towards the second fixing member 332 and is in the second position. Under the action of the third elastic member 336, the second pushing member 334 also moves a first distance towards the second fixing member 332 along with the second moving member 333, thereby driving the first sealing member 32 to abut against the first flow channel 35, thereby blocking the connection between the first flow channel 35 and the second flow channel 36. The second sealing member 34 remains in the position of abutting against the third flow channel 37 and blocks the third flow channel 37, thereby achieving pressure maintenance on the brake 86 connected to the connection port 12.

[0093] When it is necessary to reduce the pressure on the brake 86 connected to the connection port 12, a second current can be applied to the second coil 331. The second current is greater than the first current, causing the second fixing member 332 to generate a second magnetic attraction force on the second moving member 333 that is greater than the first magnetic attraction force. At this time, the second moving member 333 moves a second distance along the axial direction Z towards the second fixing member 332 and is in the third position. During this process, the pressure ring 339 on the second moving member 333 drives the retaining member 338 to move along the axial direction Z away from the third flow channel 37. Under the action of the third elastic member 336, the second pushing member 334 still presses the first sealing member 32 against the first flow channel 35. At this time, the first flow channel 35 and the second flow channel 36 remain blocked, while the second flow channel 36 and the third flow channel 37 are in a connected state, thereby reducing the pressure on the brake 86 connected to the connection port 12.

[0094] It should be noted that, under normal conditions, the distance between the larger outer diameter portion of the mandrel of retainer 338 and pressure ring 339 along the axial direction Z is greater than or equal to the first distance.

[0095] The braking device provided in this application embodiment includes a matching second coil 331, a second fixing member 332, and a second moving member 333 in the driving assembly 33 of the braking member 3. By controlling the magnitude of the current applied to the second coil 331, the second fixing member 332 and the second moving member 333 can generate magnetic fields of different magnitudes. This allows the second fixing member 332 and the second moving member 333 to approach each other at different distances under the action of different magnitudes of magnetic attraction. In this way, the second moving member 333 can drive the second pushing member 334, which slides through the second fixing member 332, to move towards the first flow channel 35, and can also drive the second blocking member 34 to move away from the third flow channel 37. Since the braking element 3 generates at least two kinds of motion relative to the first mounting cavity 13 through electric field and magnetic field, the same braking element 3 can be used to control the three connected or blocked states between the first flow channel 35 and the second flow channel 36, and between the second flow channel 36 and the third flow channel 37. This helps to reduce the number of parts in the braking device and improves the sensitivity and timeliness of the braking element 3 in performing each action, which is beneficial to improving the stability and reliability of the braking device.

[0096] In addition, this application also provides a braking device, referring to... Figure 9 , Figure 9 This is a schematic diagram of the braking device provided in this application. The braking device includes: a brake 86 and a braking apparatus provided in any of the above embodiments; wherein the braking apparatus is connected to the brake 86 through a connection port 12.

[0097] In this embodiment, the most basic function of the braking device is to decelerate and eventually stop the vehicle. When the driver performs the braking action, the braking device can reduce the rotational speed of the wheels 9 by generating friction, thereby decelerating the vehicle and eventually stopping it. The braking device typically includes a brake 86, a brake booster system, a hydraulic transmission system or a pneumatic transmission system, a master cylinder, and wheel cylinders, etc.

[0098] In this embodiment, the brake 86 may include a disc brake 86, a drum brake 86, etc. The brake 86 includes a rotating element, a brake caliper (brake shoe), etc. The rotating element can be fixed on the wheel hub of the wheel 9, and the brake caliper is connected to the connection port 12 of the braking device through a brake medium pipeline. In this way, the braking device can apply hydraulic pressure to the brake caliper, so that the brake caliper clamps the rotating element and generates a large frictional force.

[0099] For example, the brake element 3 and the return oil element 6 in the braking device of the above embodiment can be disposed on the brake 86. For instance, a first mounting cavity 13, a second mounting cavity 14, a third mounting cavity 15, a first channel 17, a second channel 18, a third channel 19, and a fourth channel 10 can be provided on the caliper body to mount the brake element 3 and the return oil element 6 on the caliper body. In this way, a piston cavity 11, a storage cavity 16, and a connection port 12 are provided on the base 1, the piston 2 is installed in the base 1, and the base 1 and the caliper body are connected through a brake medium pipeline.

[0100] The braking device provided in this application includes the braking device provided in any of the above embodiments. Therefore, the number of parts of the braking device can be reduced, which is beneficial to reducing the size and weight of the braking device and reducing the cost of the braking device.

[0101] This application embodiment also provides a vehicle, which includes: a vehicle body, a wheel speed sensor, and a braking device provided in the above embodiment; wherein, the wheel speed sensor is disposed on the vehicle body and is used to obtain the rotational speed of the wheel 9 installed on the vehicle body; the brake 86 is disposed corresponding to the wheel 9, the braking device is disposed on the vehicle body, and the wheel speed sensor is electrically connected to the controller of the braking device.

[0102] In this embodiment of the application, the vehicle may be an electric vehicle, a fuel vehicle, a gas vehicle, a hybrid vehicle, etc., and may be a two-wheeled vehicle, a three-wheeled vehicle, a four-wheeled vehicle, etc., and may be a passenger car, a freight vehicle, etc. This embodiment of the application does not limit the type of vehicle.

[0103] In this embodiment, the vehicle body is the main structure of the vehicle, which can provide seating for passengers and can also carry cargo. Wheels 9 can be installed on the vehicle body. Wheel speed sensors are used to obtain the real-time rotational speed of the wheels 9. Wheel speed sensors are typically installed on the wheels 9 or the drive shaft, sensing and measuring changes in the magnetic field or magnetic flux during the rotation of the wheels 9. 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.

[0104] In this embodiment, the brake 86 can be mounted on the vehicle body, such as fixing a portion of the brake 86 to the frame and fixing the other portion of the brake 86 to the wheel hub of the wheel 9. The brake device can be fixed to the vehicle's handlebars or to the foot pedal area of ​​the vehicle body, allowing external force to be applied to the piston 2 of the brake device by hand or foot. The wheel speed sensor can be electrically connected to the controller of the brake device, and the controller is electrically connected to the brake component 3 and the return oil component 6.

[0105] For example, the wheel speed obtained by the wheel speed sensor can be processed and analyzed in real time. According to the preset algorithm and logic, the controller can determine the driving status and braking demand of the vehicle. Based on the data processing results, the controller can send control signals to the braking component 3, the oil return component 6, etc., to control the magnitude of the braking force applied to the wheel 9.

[0106] The vehicle provided in this application embodiment includes the braking device provided in the above embodiment. Therefore, the number of parts in the braking device can be reduced, which is beneficial to reducing the size and weight of the braking device and reducing the cost of the wheel 9. Furthermore, the wheel speed sensor can monitor the rotational speed of the wheel 9 in real time. The wheel speed sensor can obtain the dynamic changes in wheel speed, such as slippage, lock-up, and other abnormal conditions. Based on this information, the braking device can be controlled to perform corresponding pressurization, pressure holding, or pressure reduction actions, thereby adjusting the braking force applied to the wheel 9 to an appropriate range. This can reduce the occurrence of wheel 9 lock-up and slippage, which is beneficial to improving the stability and safety of the vehicle during emergency braking and driving on slippery roads.

[0107] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A braking device for connection to a brake, characterized in that, The braking device includes: A base body is disposed on a vehicle body. The base body includes a piston chamber, a storage chamber, and a connection port. The storage chamber communicates with the piston chamber, the connection port is used to connect with the brake, and the storage chamber is used to store the braking medium. A piston that matches the piston chamber and is slidably disposed in the piston chamber; The control component, the base further includes a mounting cavity that matches the control component, the mounting cavity being in communication with the piston cavity, the connection port and the storage cavity respectively, at least a portion of the control component being disposed in the mounting cavity, the control component being movable relative to the base to block the communication between the mounting cavity and the connection port, and to block the communication between the piston cavity and the mounting cavity, and / or to connect the connection port and the storage cavity through the mounting cavity.

2. The braking device according to claim 1, characterized in that, The control component includes a braking element, the mounting cavity includes a first mounting cavity, the braking element is disposed in the first mounting cavity, the first mounting cavity is in communication with the piston cavity, the braking element is capable of switching between a first state and a second state relative to the base body, when the braking element is in the first state, the piston cavity and the connection port are in communication through the first mounting cavity, when the braking element is in the second state, the braking element blocks the piston cavity from the connection port.

3. The braking device according to claim 2, characterized in that, The storage cavity is connected to the first mounting cavity; The braking element can also switch from the second state to the third state relative to the base. When the braking element is in the third state, the braking element blocks the piston chamber from the connection port and connects the connection port to the first mounting cavity, so that the connection port is connected to the storage cavity.

4. The braking device according to claim 3, characterized in that, The base also includes a second mounting cavity and a first channel. The second mounting cavity is connected to the first mounting cavity through the first channel, and the second mounting cavity is connected to the storage cavity. When the braking member is in the first state and the second state, both the first mounting cavity and the first channel are blocked. When the brake is in the third state, the first mounting cavity is in communication with the first channel; The braking device further includes an energy storage component disposed in the second mounting cavity. The energy storage component is used to openably block the first channel from the second mounting cavity. When the pressure in the first channel is greater than the pressure applied to the first channel by the energy storage component, the energy storage component moves relative to the base to make the first channel communicate with the second mounting cavity.

5. The braking device according to claim 4, characterized in that, The energy storage component includes a slider and a first elastic member. The slider is slidably disposed in the second mounting cavity and is sealed to the cavity wall of the second mounting cavity. The first elastic member abuts against the slider and is used to apply a force toward the first channel to the slider.

6. The braking device according to claim 4, characterized in that, The second mounting cavity is connected to the storage cavity via a second channel; The braking device further includes a first one-way valve, which is disposed in the second channel; when the combined force of the pressure in the first channel and the pressure applied to the first channel by the energy storage component is greater than the opening pressure of the first one-way valve, the first one-way valve opens, and the first channel and the second channel are connected through the second mounting cavity.

7. The braking device according to claim 6, characterized in that, The mounting cavity includes a third mounting cavity, and the substrate further includes a third channel. The third mounting cavity is connected to the second channel, and the third mounting cavity is connected to the storage cavity through the third channel. The control component further includes a return oil element, and the braking device further includes a second one-way valve. The return oil element is disposed in the third mounting cavity and is used to push the braking medium in the third mounting cavity into the third channel. The second one-way valve is disposed in the third channel. When the pressure of the braking medium applied to the third mounting cavity by the return oil element is greater than the opening pressure of the second one-way valve, the second one-way valve opens, and the third mounting cavity and the storage cavity are connected through the third channel.

8. The braking device according to claim 7, characterized in that, The oil return component includes a first coil, a first fixing member, a first moving member, and a first pushing member; the first fixing member is fixedly disposed in the third mounting cavity and located at one end of the third mounting cavity near the third channel; the first moving member is slidably disposed on the base and located at one end of the first fixing member away from the third channel; the first coil is sleeved on the first fixing member and the first moving member; the first pushing member is slidably disposed on the first fixing member, one end of the first pushing member abuts against the first moving member, and the other end extends into the third mounting cavity.

9. The braking device according to any one of claims 3 to 8, characterized in that, The braking component includes a body, a first sealing component, and a drive assembly; The main body is disposed in the first mounting cavity, and the main body has a first flow channel, which communicates with the piston cavity; the driving assembly is connected to the main body and surrounds it to form a second flow channel, which communicates with the connection port and the first flow channel; the first sealing member is located between the second flow channel and the first flow channel and is connected to the driving assembly; when the driving assembly drives the first sealing member to move to the first flow channel, the first flow channel is blocked from the second flow channel.

10. The braking device according to claim 9, characterized in that, The braking component also includes a second sealing component; The drive assembly further includes a third flow channel, which communicates with the second flow channel and is connected to the storage cavity; the second sealing member is disposed between the second flow channel and the third flow channel and is connected to the drive assembly; under the action of the drive assembly, the second sealing member abuts against the third flow channel to block the connection between the second flow channel and the third flow channel; when the drive assembly drives the first sealing member to move to the first flow channel, the drive assembly can also drive the second sealing member to move away from the third flow channel so that the third flow channel communicates with the storage cavity.

11. The braking device according to claim 10, characterized in that, The drive assembly includes a second coil, a second fixing member, a second moving member, a second pushing member, and a second elastic member; The second fixing member is fixedly disposed in the first mounting cavity and connected to the body, at one end of the first flow channel; the second moving member is slidably disposed on the base and located on the side of the second fixing member away from the body; the second coil is sleeved on the second fixing member and the second moving member; The second flow channel passes through the second fixed member and the second moving member. The second pushing member slides through the second flow channel. The first blocking member is disposed at the end of the second pushing member close to the first flow channel. The second elastic member is disposed at the end of the second pushing member close to the third flow channel. The second blocking member is disposed at the end of the second elastic member away from the second pushing member. Under the force of the second elastic member, the second blocking member abuts against the third flow channel.

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

13. A vehicle, characterized in that, include: Body; A wheel speed sensor, which is disposed on the vehicle body, is used to obtain the rotational speed of the wheels installed on the vehicle body; The braking device of claim 12, wherein the brake is provided correspondingly to the wheel, the braking device is provided on the vehicle body, and the wheel speed sensor is electrically connected to the controller of the braking device.

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