A pump, a braking device, a braking apparatus, and a vehicle

Abstract

The application provides a pump, a brake device, a brake equipment and a vehicle, and relates to the technical field of pumps. The pump can reduce the number of parts in the pump, is beneficial to reducing the volume and weight of the pump, and can improve the flexibility of the pump in various devices or equipment. The pump comprises a fixed part, a moving part, a pushing part and a coil. The moving part is movable relative to the fixed part and has a gap between the fixed part. The pushing part is in sliding connection with the fixed part and extends to be connected with the moving part. The coil is arranged correspondingly with the fixed part and the moving part. The fixed part and the moving part have magnetic conductivity. In the case that the coil applies current, the fixed part and the moving part generate magnetism. Under the action of the magnetic force, the moving part drives the pushing part to move relative to the fixed part.

Description

Technical Field

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

[0002] Anti-lock braking systems (ABS) are widely used in various vehicles. ABS prevents the wheels from locking up during emergency braking, thereby maintaining vehicle handling and directional stability to improve driving safety. Related technologies include a return pump in the ABS system to deliver brake fluid to the reservoir. Utility Model Content

[0003] This application provides a pump, braking device, braking equipment, and vehicle that can reduce the number of parts in the pump, thereby reducing the pump's size and weight and improving the flexibility of the pump's placement in various devices or equipment.

[0004] In a first aspect, this application provides a pump comprising: a fixed member, a moving member, a pushing member, and a coil; wherein the moving member is movable relative to the fixed member and has a gap between them; the pushing member is slidably connected to the fixed member and extends to connect with the moving member; the coil is correspondingly disposed with both the fixed member and the moving member, both of which are magnetically conductive, and when a current is applied to the coil, both the fixed member and the moving member generate magnetism, and under the action of the magnetic field force, the moving member drives the pushing member to move relative to the fixed member.

[0005] The pump provided in this application includes a matching coil, a fixed component, and a moving component. By applying current to the coil, both the fixed and moving components generate magnetic fields, causing them to approach each other under magnetic attraction. Furthermore, the push component is slidably connected to the fixed component, allowing the moving component to drive the push component relative to the fixed component. This alters the size of the cavity in the device or equipment using the pump, thereby achieving the pump's function. Since the pump uses electric and magnetic fields to induce relative motion between the moving and fixed components, it reduces the number of parts in the pump and improves the pump's sensitivity and responsiveness. It also allows for smaller fixed and moving components, reducing the overall size of the pump. Therefore, the pump provided in this application reduces the number of parts, resulting in a smaller pump size and weight, and thus increasing the flexibility of its placement in various devices or equipment.

[0006] In one possible implementation of this application, the fixing member has a first cavity and a sliding hole that match the pushing member. The sliding hole is located at the end of the fixing member away from the moving member. A portion of the pushing member is located in the first cavity and abuts against the moving member. Another portion of the pushing member can extend out of the fixing member through the sliding hole.

[0007] In one possible implementation of this application, the pump further includes a first elastic element disposed in the first cavity and connected to the pusher, the first elastic element being used to apply a force toward the moving member to the pusher.

[0008] In one possible implementation of this application, the pump further includes a fixed sleeve, which encloses a motion cavity that matches the moving member. The moving member is slidably disposed within the motion cavity, and a fixed member is disposed at the opening of the motion cavity and fixedly connected to the fixed sleeve.

[0009] In one possible implementation of this application, the coil is arranged radially outside the fixed sleeve; along the axial direction of the fixed sleeve, the fixed sleeve includes a first fixed sleeve section and a second fixed sleeve section, the outer diameter of the first fixed sleeve section is larger than the outer diameter of the second fixed sleeve section, the fixing member is fixedly connected to the first fixed sleeve section, and at least a portion of the moving member is located inside the second fixed sleeve section.

[0010] In one possible implementation of this application, the pump further includes a second elastic element disposed between the fixed sleeve and the moving member, the second elastic element being used to apply a force toward the fixed member to the moving member.

[0011] In one possible implementation of this application, the fastener and the fixing sleeve are sealed together.

[0012] In one possible implementation of this application, the pump further includes a housing and a cover, the cover having a perforation that matches the fixing member, the cover being fitted onto the end of the fixing member away from the moving member, and the housing being fitted onto the coil and sealed to the cover.

[0013] Secondly, this application provides a braking device, which includes: a base, a piston, and a pump provided in any one of the first aspects; wherein, the base can be disposed on a vehicle body, the base includes a piston chamber, a storage chamber, and a connection port, the storage chamber is connected to the piston chamber, the connection port is used to connect to a brake, and the storage chamber is used to store braking medium; the piston is matched with the piston chamber, and the piston is slidably disposed in the piston chamber; the base also includes a mounting cavity matched with the pump, the mounting cavity is connected to the connection port and the storage chamber respectively, at least a part of the pump is disposed in the mounting cavity, and the moving part drives the pushing part to move in the mounting cavity to change the space size in the mounting cavity.

[0014] The braking device provided in this application, 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, a mounting cavity is provided within the base, facilitating the installation of the pump within it. Simultaneously, by connecting the connecting port to the storage cavity in the base through the mounting cavity, the movement of the pump's driving component can be controlled, thereby pushing the braking medium from the mounting cavity into the storage cavity, thus controlling the backflow of the braking medium. Since the pump uses electric and magnetic fields to induce relative movement between the moving and stationary components, it helps reduce the number of parts and the pump's size, and improves the pump's sensitivity and responsiveness, thus facilitating the installation of the pump within the braking device and enhancing the reliability of the braking device's operation.

[0015] Thirdly, this application provides a braking device, which includes: a brake and the braking device provided in the second aspect above; wherein the braking device is connected to the brake through a connection port.

[0016] The braking device provided in this application, by including the braking device provided in the second aspect above, is advantageous in reducing the number of parts and the size of the pump, and can improve the sensitivity and timeliness of the pump's action, thereby facilitating the miniaturization of the braking device and improving the reliability of the braking device's operation.

[0017] Fourthly, this application provides a vehicle comprising: a vehicle body, wheel speed sensors, and braking devices provided in the above embodiments; 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, braking devices are disposed on the vehicle body, and the wheel speed sensors are electrically connected to the controller of the braking devices.

[0018] The vehicle provided in this application, by including the braking device described in the third aspect above, helps to reduce the number of parts and the size of the pump, thereby improving the sensitivity and timeliness of the pump's operation. This facilitates the miniaturization of the braking device and enhances its reliability. Furthermore, wheel speed sensors can monitor wheel rotation speed in real time, capturing dynamic changes in wheel speed, such as slippage or wheel lock-up. Based on this information, the braking device can be controlled to perform corresponding actions, adjusting the braking force applied to the wheels to an appropriate range. This reduces the occurrence of wheel lock-up and slippage, improving the vehicle's stability and safety during emergency braking and on slippery surfaces. Attached Figure Description

[0019] Figure 1 A cross-sectional structural schematic diagram of the pump provided in this application; Figure 2 An exploded view of the pump provided in this application; Figure 3 This is a schematic diagram of the braking device provided in this application.

[0020] Explanation of reference numerals in the attached figures: 1-Pump; 11-Fixed component; 111-First cavity; 112-Sliding hole; 12-Moving component; 121-First sliding section; 122-Second sliding section; 13-Pushing component; 131-Slider; 132-Push rod; 14-Coil; 15-First elastic component; 16-Fixed sleeve; 161-First section of fixed sleeve; 162-Second section of fixed sleeve; 17-Second elastic component; 18-Housing shell; 181-Flanged edge; 19-Cover; 10-Bracket; 2-Base; Y-Radial; Z-Axial. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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%.

[0029] In related technologies, an electric motor is installed in the ABS system to drive the brake fluid in the brake circuit back to its original position. Alternatively, an electromagnetic pump is installed in the ABS system to drive the brake fluid in the brake circuit back to its original position. This shift from an "electrically driven" to an "electricallyless" ABS system provides users with safer braking performance and a more refined driving experience. However, in these technologies, the electromagnetic pump in the ABS system has a complex structure and large size, which complicates the overall structure of the braking device and makes it inconvenient to arrange the various components within the braking system.

[0030] This application provides a pump that can be used in braking devices, but is not limited to braking devices; it can be used in any applicable scenario. This pump reduces the number of parts, which is beneficial for reducing its size and weight, and improves its flexibility in placement in various devices or equipment. (Refer to...) Figure 1 and Figure 2 , Figure 1 This is a cross-sectional structural schematic diagram of the pump provided in this application. Figure 2 The following is an exploded view of the pump provided in this application. The pump provided in the embodiments of this application will be described below with reference to the examples in the accompanying drawings.

[0031] The pump 1 provided in this embodiment includes: a fixed member 11, a moving member 12, a pushing member 13, and a coil 14; wherein, the moving member 12 is movable relative to the fixed member 11 and has a gap between them; the pushing member 13 is slidably connected to the fixed member 11 and extends to connect with the moving member 12; the coil 14 is correspondingly provided with both the fixed member 11 and the moving member 12, both the fixed member 11 and the moving member 12 are magnetic, and when current is applied to the coil 14, both the fixed member 11 and the moving member 12 generate magnetism, and under the action of the magnetic field force, the moving member 12 drives the pushing member 13 to move relative to the fixed member 11.

[0032] In this embodiment, the pump 1 can be configured as a structure that generates motion through electromagnetic action. For example, a fixed component 11, a moving component 12, and a coil 14 can be provided. Both the fixed component 11 and the moving component 12 can be made of magnetically conductive materials, such as soft magnetic materials like low-carbon steel, silicon steel, or alloy steel. Corresponding coils 14 can be provided for the fixed component 11 and the moving component 12, and the fixed component 11 and the moving component 12 can be arranged sequentially along the axial direction Z. For example, if the coil 14 is set as a cylinder, the coil 14 can be sleeved on the fixed component 11 and the moving component 12 along the axial direction Z. In this way, when a current is applied to the coil 14, the coil 14 can generate a magnetic field. At this time, both the fixed part 11 and the moving part 12, which are magnetically conductive, can generate magnetism. Since the magnetic fields of the fixed part 11 and the moving part 12 are in the same direction, that is, the magnetic poles of the opposite ends of the fixed part 11 and the moving part 12 are opposite, a magnetic attraction force can be generated between the fixed part 11 and the moving part 12. Under the action of the magnetic attraction force, the fixed part 11 and the moving part 12 can move closer to each other.

[0033] For example, the structure of the fixing member 11, the moving member 12, and the coil 14 can be configured according to the application scenario of the pump 1. For instance, a cavity matching the fixing member 11, the moving member 12, and the coil 14 can be provided in the target device or equipment where the pump 1 is applied, so that the fixing member 11 can be fixed in the target device or equipment by means of bonding, snap-fitting, welding, threaded connection, etc. The moving member 12 can be slidably disposed in the target device or equipment, with a certain distance gap between the moving member 12 and the fixing member 11. The coil 14 can be fixed in the target device or equipment, with one part of the coil 14 sleeved on the fixing member 11 and the other part of the coil 14 sleeved on the moving member 12.

[0034] In this embodiment, a pusher 13 can be provided in the pump 1, and the pusher 13 can be slidably connected to the fixing member 11. For example, the pusher 13 can be made of a hard plastic or similar material, and can be configured as a rod, allowing the rod-shaped pusher 13 to slide through the fixing member 11. Alternatively, the pusher 13 can be configured as a cylindrical shape that matches the fixing member 11, allowing the cylindrical pusher 13 to be sleeved on the fixing member 11, thereby enabling the pusher 13 to slide relative to the fixing member 11 along the axial direction Z.

[0035] For example, the end of the pushing member 13 near the moving member 12 can be connected to the moving member 12, such as by making the pushing member 13 and the moving member 12 detachably abutting against each other. In this way, as the moving member 12 moves relative to the fixed member 11 in the Z-axis direction towards the fixed member 11, the moving member 12 can drive the pushing member 13 to move relative to the fixed member 11. This allows the pushing member 13 to move within the cavity of the target device or equipment, changing the size of the space within the cavity, thereby enabling the intake or discharge of fluid into or from the target device or equipment. The frequency and amplitude of the movement of the pushing member 13 relative to the fixed member 11 can be adjusted by controlling the magnitude and frequency of the current applied to the coil 14.

[0036] The pump 1 provided in this application embodiment includes a matching coil 14, a fixed member 11, and a moving member 12. Applying current to the coil 14 generates a magnetic field in both the fixed member 11 and the moving member 12, causing them to approach each other under magnetic attraction. Furthermore, the pushing member 13 is slidably connected to the fixed member 11. The moving member 12 drives the pushing member 13 to move relative to the fixed member 11, thereby changing the size of the cavity in the device or equipment using the pump 1, thus realizing the function of the pump 1. Since the pump 1 uses electric and magnetic fields to generate relative movement between the moving member 12 and the fixed member 11, it is beneficial to reduce the number of parts in the pump 1 and improve the sensitivity and responsiveness of the pump 1's actions. It also allows for smaller volumes of the fixed member 11 and the moving member 12, thereby reducing the overall size of the pump 1. Therefore, the pump 1 provided in this application embodiment can reduce the number of parts in the pump 1, which is beneficial for reducing the pump 1's size and weight, thereby improving the flexibility of the pump 1's placement in various devices or equipment.

[0037] In some possible embodiments of this application, such as Figure 1 and Figure 2 As shown, the fixing member 11 has a first cavity 111 that matches the pushing member 13 and a sliding hole 112. The sliding hole 112 is located at one end of the fixing member 11 away from the moving member 12. A part of the pushing member 13 is located in the first cavity 111 and abuts against the moving member 12. Another part of the pushing member 13 can extend to the outside of the fixing member 11 through the sliding hole 112.

[0038] In this embodiment, the pusher 13 can be slidably disposed within the fixing member 11, and a portion of the pusher 13 can extend to the outside of the fixing member 11, so that the moving member 12 drives the pusher 13 to slide along the axial direction Z within the fixing member 11.

[0039] For example, a first cavity 111 matching the pusher 13 can be provided at one end of the fixing member 11 near the moving member 12, and a sliding hole 112 can be provided at one end of the fixing member 11 away from the moving member 12, wherein the inner diameter of the sliding hole 112 is smaller than the inner diameter of the first cavity 111. Correspondingly, the pusher 13 can be configured to include a slider 131 and a push rod 132, wherein the outer diameter of the push rod 132 is smaller than the outer diameter of the slider 131, the outer diameter of the slider 131 is smaller than the inner diameter of the first space and is close to the inner diameter of the first space, and the outer diameter of the push rod 132 is smaller than the inner diameter of the sliding hole 112 and is close to the inner diameter of the slider 131. In this way, the slider 131 can be located in the first space, the push rod 132 can pass through the sliding hole 112, and the slider 131 can pass out of the first space and abut against the moving member 12. Thus, as the moving part 12 drives the slider 131 to slide along the Z axis in the first space, the slider 131 can drive the push rod 132 to move in the sliding hole 112, thereby changing the length of the part of the push rod 132 located outside the fixed part 11.

[0040] The pump 1 provided in this application embodiment has a pusher 13 that slides through the first cavity 111 and the sliding hole 112 on the fixed member 11. This allows a part of the pusher 13 to move out of the fixed member 11 through the sliding hole 112, and another part of the pusher 13 to abut against the moving member 12 through the first cavity 111. This not only makes it easier for the moving member 12 to drive the pusher 13 to move relative to the fixed member 11, but also reduces the space occupied by the pusher 13 in the pump 1, which is beneficial to the miniaturization of the pump 1.

[0041] In some possible embodiments of this application, such as Figure 1 and Figure 2 As shown, the pump 1 also includes a first elastic element 15, which is disposed in the first cavity 111 and connected to the pusher 13. The first elastic element 15 is used to apply a force toward the moving member 12 to the pusher 13.

[0042] In this embodiment, a first elastic element 15 can be provided on the pusher 13 so that the pusher 13 can move along the axial direction Z towards the moving element 12 through the first elastic element 15.

[0043] For example, along the Z-axis, the depth of the first cavity 111 can be set to be greater than the length of the slider 131. After the slider 131 moves into the first cavity 111, there will still be extra space inside the first cavity 111. The first elastic element 15 can be disposed in the first cavity 111. For example, the first elastic element 15 can be a compression spring, an elastic rubber sleeve, a silicone sleeve, etc. The first elastic element 15 can be sleeved on the push rod 132 of the pusher 13, and the inner diameter of the first elastic element 15 is smaller than the outer diameter of the slider 131 of the pusher 13, so that the two ends of the first elastic element 15 abut against the slider 131 and the bottom wall of the first cavity 111, respectively.

[0044] The pump 1 provided in this application embodiment has a first elastic element 15 on the pushing member 13. When the magnetic field on the moving member 12 disappears, the first elastic element 15 can promptly drive the pushing member 13 to move closer to the moving member 12. This allows the push rod 132 of the pushing member 13 to retract in time, and the pushing member 13 can drive the moving member 12 to move away from the fixed member 11 in time. This allows the moving member 12 to maintain the original gap with the fixed member 11, making it easier for the moving member 12 to drive the pushing member 13 to move closer to the fixed member 11 again under the action of the magnetic field. This improves the sensitivity and timeliness of the retraction of the pushing member 13.

[0045] In some possible embodiments of this application, such as Figure 1 and Figure 2 As shown, the pump 1 also includes a fixed sleeve 16, which encloses a motion cavity that matches the moving part 12. The moving part 12 is slidably disposed in the motion cavity, and the fixed part 11 is disposed at the opening of the motion cavity and is fixedly connected to the fixed sleeve 16.

[0046] In this embodiment, a matching fixing sleeve 16 can be provided for the fixing member 11 and the moving member 12 to limit the relative position and relative movement of the fixing member 11 and the moving member 12.

[0047] For example, the fixing sleeve 16 can be configured as a barrel shape to form a moving cavity within the fixing sleeve 16. For instance, both the fixing member 11 and the moving member 12 can be configured as approximately cylindrical structures, and the fixing sleeve 16 can be configured as a barrel shape (open at one end along the axial direction Z, with a bottom wall at the other end). The moving member 12 can be disposed in the moving cavity within the fixing sleeve 16, and the moving member 12 can be clearance-fitted with the fixing sleeve 16 so that the moving member 12 can slide relative to the fixing member 11 along the axial direction Z within the fixing sleeve 16. The open end of the fixing sleeve 16 can be sleeved onto the fixing member 11, and the fixing sleeve 16 and the fixing member 11 can be fixedly connected.

[0048] The pump 1 provided in this application embodiment has a fixing sleeve 16 for the fixing member 11 and the moving member 12. The fixing member 11 and the moving member 12 can be placed in the fixing sleeve 16, which makes it convenient to limit the relative position and relative movement of the fixing member 11 and the moving member 12 through the fixing sleeve 16, and makes it convenient to install the fixing member 11 and the moving member 12 in the device or equipment using the pump 1 through the fixing sleeve 16.

[0049] In some possible embodiments of this application, such as Figure 1 and Figure 2 As shown, the coil 14 is arranged on the radial Y side of the fixed sleeve 16; along the axial Z of the fixed sleeve 16, the fixed sleeve 16 includes a first fixed sleeve section 161 and a second fixed sleeve section 162. The outer diameter of the first fixed sleeve section 161 is larger than the outer diameter of the second fixed sleeve section 162. The fixing member 11 is fixedly connected to the first fixed sleeve section 161, and at least a part of the moving member 12 is located inside the second fixed sleeve section 162.

[0050] In this embodiment, the coil 14 can be disposed on the outside of the fixed sleeve 16. For example, a support 10 can be provided for the coil 14. The support 10 can be configured as a cylindrical shape that matches the fixed sleeve 16. For instance, if a portion of the support 10 is cylindrical, the coil 14 can be wound around the cylindrical portion of the support 10, and the cylindrical portion of the support 10 can be fitted onto the fixed sleeve 16, thereby placing the coil 14 on the radially Y-shaped outer side of the fixed sleeve 16. For example, along the axial direction Z (the arrangement direction of the moving member 12 and the fixed member 11), a portion of the coil 14 can be fitted onto the fixed member 11, and another portion of the coil 14 can be fitted onto the moving member 12. In this way, when the coil 14 is energized, both the fixed member 11 and the moving member 12 can be within the magnetic field generated by the coil 14.

[0051] For example, the fixing sleeve 16 can be configured as a structure including a first fixing sleeve segment 161 and a second fixing sleeve segment 162, which can be an integral structure. For instance, the fixing sleeve 16 can be made of a metallic material, such as austenitic or ferritic stainless steel, and can be formed by stamping. The fixing sleeve 16 can also be made of a non-metallic material. The first fixing sleeve segment 161 can be cylindrical, and the second fixing sleeve segment 162 can be cylindrical, with the outer diameter of the first fixing sleeve segment 161 being larger than the outer diameter of the second fixing sleeve segment 162. The wall thicknesses of the first fixing sleeve segment 161 and the second fixing sleeve segment 162 are the same or nearly the same, thus forming the fixing sleeve 16 with a boss structure.

[0052] In another example, the moving part 12 can be configured to include a first sliding segment 121 and a second sliding segment 122. The outer diameter of the first sliding segment 121 is smaller than the outer diameter of the second sliding segment 122, and the outer diameter of the first sliding segment 121 is adapted to the inner diameter of the second segment 162 of the fixed sleeve, while the outer diameter of the second sliding segment 122 is adapted to the inner diameter of the first segment 161 of the fixed sleeve. This allows the first sliding segment 121 of the moving part 12 to be located within the second segment 162 of the fixed sleeve, and the second sliding segment 122 of the moving part 12 to be located within the first segment 161 of the fixed sleeve. One end of the fixing member 11 can be inserted into the open end of the first segment 161 of the fixed sleeve, and the fixing member 11 can be fixedly connected to the first segment 161 of the fixed sleeve. For example, the fixing member 11 can be fixedly connected to the first segment 161 of the fixed sleeve by welding, bonding, interference fit, or other methods.

[0053] The pump 1 provided in this embodiment reduces the radial Y-distance between the coil 14 and the first segment 161 of the fixed sleeve 16 by placing the coil 14 on the radially Y-side outside the fixed sleeve 16 and making the outer diameter of the first segment 161 of the fixed sleeve 16 larger than the outer diameter of the second segment 162 of the fixed sleeve. This reduces the radial Y-distance between the fixing member 11 and the coil 14, thereby facilitating the generation of a stronger magnetic field by the fixing member 11. Furthermore, the fixed sleeve 16 can act as a magnetic shield, which helps reduce the impact of electromagnetic interference and magnetic leakage on the movement of the pump 1.

[0054] In some possible embodiments of this application, such as Figure 1 and Figure 2 As shown, the pump 1 also includes a second elastic element 17, which is disposed between the fixed sleeve 16 and the moving member 12. The second elastic element 17 is used to apply a force toward the fixed member 11 to the moving member 12.

[0055] In this embodiment, a second elastic element 17 can be provided on the moving member 12 so that the moving member 12 can move along the axial direction Z towards the fixed member 11 through the second elastic element 17.

[0056] For example, along the Z-axis, a second cavity can be provided at the end of the moving member 12 away from the fixed member 11. A second elastic member 17 can be disposed within the second cavity. For example, the second elastic member 17 can be a compression spring, an elastic rubber sleeve, a silicone sleeve, etc. One end of the second elastic member 17 can abut against the bottom wall of the second cavity, and the other end can abut against the bottom wall of the fixed sleeve 16, thereby placing the second elastic member 17 between the fixed sleeve 16 and the moving member 12. In this way, the second elastic member 17 can apply a force towards the fixed member 11 along the Z-axis to the moving member 12, thereby ensuring that the moving member 12 is always in contact with the pushing member 13 along the Z-axis. By providing a second cavity on the moving member 12 that matches the second elastic member 17, the weight of the moving member 12 can be reduced, thereby improving the timeliness of the movement of the moving member 12 under the action of magnetic force and the first elastic member 15. The force applied to the moving member 12 by the second elastic member 17 is less than the force applied to the pushing member 13 by the first elastic member 15.

[0057] The pump 1 provided in this application embodiment has a second elastic element 17 for the moving part 12. After the first elastic element 15 drives the pushing element 13 to move closer to the moving part 12, so that the pushing element 13 drives the moving part 12 to move away from the fixed part 11 along the axial direction Z, the second elastic element 17 can apply a force to the moving part 12 along the axial direction Z toward the fixed part 11. This can reduce the occurrence of separation between the moving part 12 and the pushing element 13 along the axial direction Z, thereby reducing the risk of gaps between the moving part 12 and the pushing element 13. Furthermore, when the coil 14 generates a magnetic field again, the idle stroke of the moving part 12 relative to the pushing element 13 can be eliminated, which helps to reduce the risk of vibration and untimely response of the pump 1 during operation.

[0058] In some possible embodiments of this application, the fastener 11 is sealed to the fastener sleeve 16.

[0059] In this embodiment, the fastener 11 and the fixing sleeve 16 can be fixedly connected, and the fastener 11 and the fixing sleeve 16 can be sealed together. For example, the opening of the fixing sleeve 16 can be welded to the fastener 11 in a circle; adhesive can be applied between the fixing sleeve 16 and the fastener 11; or the fixing sleeve 16 and the fastener 11 can be tightly fitted together with an interference fit, and a sealing ring can be provided between the fixing sleeve 16 and the fastener 11 to seal the connection between the fastener 11 and the fixing sleeve 16.

[0060] For example, a sealing ring can be provided in the sliding hole 112 of the fixing member 11, and the push rod 132 of the push member 13 can be inserted into the sealing ring, so that the push member 13 and the fixing member 11 can slide and be sealed together.

[0061] The pump 1 provided in this application embodiment has a sealed connection between the fixing member 11 and the fixing sleeve 16, which can form a sealed space inside the fixing sleeve 16. This can seal the moving member 12, the second elastic member 17, etc. inside the fixing sleeve 16, thereby reducing the impact of the external environment on the parts inside the pump 1.

[0062] In some possible embodiments of this application, such as Figure 1 and Figure 2 As shown, the pump 1 also includes a housing 18 and a cover 19. The cover 19 has a through hole that matches the fixing member 11. The cover 19 is sleeved on the end of the fixing member 11 away from the moving member 12. The housing 18 is sleeved on the coil 14 and is sealed to the cover 19.

[0063] In this embodiment, a housing 18 and a cover 19 can be provided in the pump 1 to seal the coil 14 and other components. For example, the housing 18 can be cylindrical to match the coil 14. An opening matching the fixing sleeve 16 can be provided at one end of the housing 18, and a flange 181 can be provided at the edge of the opening of the housing 18, extending into the housing 18. The bracket 10 supporting the coil 14 can be inserted between the housing wall of the housing 18 and the flange 181 to fix the coil 14 inside the housing 18. The flange 181 can be sleeved on the outside of the second section 162 of the fixing sleeve 16. A cover 19 matching the opening of the housing 18 can be provided at the other end of the housing 18. A through hole matching the fixing member 11 can be provided on the cover 19 to connect the fixing member 11 through the cover 19 to the fixing sleeve 16, thus fixing the cover 19 to the housing 18.

[0064] For example, sealant or similar material can be applied between the flange 181 and the second section 162 of the fixing sleeve to seal the housing 18 and the fixing sleeve 16. The housing 18 and the cover 19 can be sealed together by means of bonding, threaded connection, welding, etc. A wire-passing hole can be provided on the housing 18 to allow the copper wire or the like in the coil 14 to pass through the housing 18.

[0065] The pump 1 provided in this application embodiment, by sleeved housing 18 on coil 14 and sealingly connected cover 19 to housing 18, can provide protection for coil 14 and the like through housing 18 and cover 19, and can keep coil 14 in a closed environment, which is beneficial to reduce the influence of external environment on coil 14 and the like.

[0066] In addition, this application also provides a braking device, referring to... Figure 3 , Figure 3This is a schematic diagram of the braking device provided in this application. The braking device includes: a base 2, a piston, and a pump 1 provided in any of the above embodiments; wherein, the base 2 can be disposed on the vehicle body, the base 2 includes a piston chamber, a storage chamber, and a connection port, the storage chamber is connected to the piston chamber, the connection port is used to connect to the brake, and the storage chamber is used to store the braking medium; the piston is matched with the piston chamber, and the piston is slidably disposed in the piston chamber; the base 2 also includes a mounting cavity matched with the pump 1, the mounting cavity is connected to the connection port and the storage chamber respectively, at least a part of the pump 1 is disposed in the mounting cavity, and the moving part 12 drives the pushing part 13 to move in the mounting cavity to change the space size in the mounting cavity.

[0067] In this embodiment, the base 2 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 2 can be made of metal, composite materials, etc., and can be manufactured through processes such as casting, injection molding, and machining.

[0068] For example, a piston chamber, a connection port, and a storage chamber can be provided within the base 2. The piston chamber can be configured as a near-cylindrical blind hole. A connection port can be provided at the edge of the base 2. For example, the connection port can be a threaded hole to facilitate the fixed and sealed connection of the connector of the pipeline connected to the brake to the base 2 through the threaded hole.

[0069] In this embodiment, a piston can be disposed within the piston cavity. The piston can be an approximately cylindrical structure that matches the piston cavity. The piston can be slidably disposed within the piston cavity, and a sealing ring or similar device can be fitted onto the piston to seal and slide it in the piston cavity. The piston cavity can store braking medium, which can be alcohol-based brake fluid, mineral oil-based brake fluid, synthetic brake fluid, etc.

[0070] For example, a brake handle can be rotatably mounted on the base 2 and connected to the piston. This allows the piston to slide within the piston chamber by gripping the brake handle, thereby propelling the flow of the braking medium.

[0071] In another example, a storage cavity can be provided on the base 2 to store the braking medium. For example, in the vertical direction, the storage cavity can be provided at the upper end of the base 2, and the piston cavity can be provided on the lower side of the storage cavity. A through hole can be provided on the cavity wall between the storage cavity and the piston cavity. The through hole can be located within the stroke range of the piston in the piston cavity. The storage cavity and the piston cavity can be connected through the through hole, so that the braking medium in the storage cavity can flow into the piston cavity. After the piston slides relative to the piston cavity, the through hole can be blocked by the piston, so that a completely sealed space can be formed in the piston cavity, and pressure can be applied to the braking medium in the piston cavity.

[0072] In this embodiment, an installation cavity can be provided in the base 2, and the installation cavity can be connected to both the storage cavity and the connection port, that is, the storage cavity and the connection port can be connected through the installation cavity. The installation cavity can be set to a cavity that matches the pump 1 provided in any of the above embodiments, so that the pump 1 can be placed in the installation cavity and the pusher 13 can be located in the space of the installation cavity.

[0073] For example, after the braking medium flows into the mounting cavity at the connection port, current can be applied to the coil 14 to cause a portion of the pusher 13 to move within the mounting cavity, thereby increasing the pressure within the mounting cavity and pushing the braking medium within the mounting cavity into the storage cavity.

[0074] The braking device provided in this application embodiment, since the base 2 includes a piston chamber and a connecting port, facilitates the placement of the piston within the base 2 through the piston chamber, and facilitates the sealing connection between the brake and the braking device through the connecting port. Furthermore, an mounting cavity is provided within the base 2, facilitating the installation of the pump 1 within the mounting cavity. Simultaneously, by connecting the connecting port to the storage cavity in the base 2 through the mounting cavity, the movement of the pushing member 13 in the pump 1 can be controlled, thereby pushing the braking medium in the mounting cavity into the storage cavity through the pump 1, thus controlling the backflow of the braking medium. Since the pump 1 causes relative movement between the moving member 12 and the fixed member 11 through electric and magnetic fields, it helps reduce the number of parts and the volume of the pump 1, and improves the sensitivity and responsiveness of the pump 1's actions, thus facilitating the placement of the pump 1 in the braking device, and thereby improving the reliability of the braking device's operation.

[0075] This application also provides a braking device, which includes a brake and the braking device provided in the above embodiments; wherein the braking device is connected to the brake through a connection port.

[0076] In this embodiment, the most basic function of the braking device is to decelerate and eventually stop the vehicle. When the driver applies the brakes, the braking device reduces the rotational speed of the wheels by generating friction, thereby decelerating the vehicle and eventually stopping it. The braking device typically includes a brake, a brake booster system, a hydraulic or pneumatic transmission system, a master cylinder, and wheel cylinders, etc.

[0077] In this embodiment, the brake may include a disc brake, a drum brake, etc. The brake includes a rotating element, a brake caliper (brake shoe), etc. The rotating element can be fixed on the wheel hub, and the brake caliper is connected to the brake device through a brake medium pipeline. In this way, the brake device can apply hydraulic pressure to the brake caliper, causing the brake caliper to clamp the rotating element and generate a large frictional force.

[0078] For example, the pump 1 in the braking device of the above embodiment can be installed on the brake, such as by providing a mounting cavity on the caliper body to install the pump 1 on the caliper body. In this way, a piston cavity, a storage cavity and a connection port are provided on the base 2, the piston is installed in the base 2, and the base 2 and the caliper body are connected through a brake medium pipeline.

[0079] The braking device provided in this application embodiment includes the braking device provided in the above embodiment. Therefore, it is beneficial to reduce the number of parts and the volume of pump 1, and can improve the sensitivity and timeliness of pump 1 in performing actions, thereby facilitating the miniaturization of the braking device and improving the reliability of the braking device.

[0080] This application also provides a vehicle, which includes: a vehicle body, wheel speed sensors, and braking devices provided in the above embodiments; wherein, the wheel speed sensors are disposed on the vehicle body and are used to obtain the rotational speed of the wheels installed on the vehicle body; the 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.

[0081] 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.

[0082] In this embodiment, the vehicle body is the main structure of the vehicle, which can provide seating for passengers and also carry cargo. Wheels can be installed on the vehicle body. Wheel speed sensors are used to obtain the real-time rotational speed of the wheels. Wheel speed sensors are typically installed on the wheels or drive shafts, sensing and measuring changes in the magnetic field or magnetic flux during wheel rotation. Wheel speed sensors generally include magnetoelectric wheel speed sensors and Hall effect wheel speed sensors, and a suitable wheel speed sensor can be selected according to the needs of different vehicles.

[0083] In this embodiment, the brake can be mounted on the vehicle body, such as fixing one part of the brake to the frame and the other part to the wheel hub. The brake can be fixed to the vehicle's handlebars or to the foot pedal area, allowing external force to be applied to the brake piston by hand or foot. The wheel speed sensor can be electrically connected to the brake controller, and the controller can be electrically connected to pump 1.

[0084] 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 pump 1, etc., to control the pressure of the braking medium in the brake, thereby controlling the amount of braking force applied to the wheels.

[0085] The vehicle provided in this application embodiment, by including the braking device provided in the above embodiment, is advantageous in reducing the number of parts and the size of pump 1, and can improve the sensitivity and timeliness of pump 1's action, thereby facilitating the miniaturization of the braking device and improving its operational reliability. Furthermore, the wheel speed sensor can monitor the 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 device can be controlled to perform corresponding actions, adjusting the braking force applied to the wheels to an appropriate range. This reduces the occurrence of wheel lock-up and slippage, improving the vehicle's stability and safety during emergency braking and driving on slippery roads.

[0086] 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 pump, characterized in that, include: Fasteners; A moving component, which is movable relative to the fixed component and has a gap between them; A pushing member, which is slidably connected to the fixed member and extends to be connected to the moving member; A coil is provided, which is correspondingly arranged with the fixed part and the moving part. The fixed part and the moving part are both magnetic. When a current is applied to the coil, the fixed part and the moving part generate magnetism. Under the action of the magnetic field force, the moving part drives the pushing part to move relative to the fixed part.

2. The pump according to claim 1, characterized in that, The fixing member has a first cavity and a sliding hole that match the pushing member. The sliding hole is located at one end of the fixing member away from the moving member. A portion of the pushing member is located in the first cavity and abuts against the moving member. Another portion of the pushing member can extend through the sliding hole to the outside of the fixing member.

3. The pump according to claim 2, characterized in that, The pump further includes a first elastic element disposed in the first cavity and connected to the pusher, the first elastic element being used to apply a force toward the moving member to the pusher.

4. The pump according to claim 1, characterized in that, The pump also includes a fixed sleeve, which encloses a motion cavity that matches the moving component. The moving component is slidably disposed within the motion cavity, and the fixed component is disposed at the opening of the motion cavity and is fixedly connected to the fixed sleeve.

5. The pump according to claim 4, characterized in that, The coil is arranged radially outside the fixed sleeve; Along the axial direction of the fixed sleeve, the fixed sleeve includes a first fixed sleeve section and a second fixed sleeve section. The outer diameter of the first fixed sleeve section is larger than the outer diameter of the second fixed sleeve section. The fixing member is fixedly connected to the first fixed sleeve section, and at least a portion of the moving member is located within the second fixed sleeve section.

6. The pump according to claim 4, characterized in that, The pump further includes a second elastic element disposed between the fixed sleeve and the moving member, the second elastic element being used to apply a force toward the fixed member to the moving member; and / or The fastener is sealed to the fastening sleeve.

7. The pump according to any one of claims 1 to 6, characterized in that, The pump also includes a housing and a cover, the cover having a through hole that matches the fixing member, the cover being fitted onto the end of the fixing member away from the moving member, the housing being fitted onto the coil and being sealed to the cover.

8. A braking device, characterized in that, include: 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, and the connection port is used to connect to a brake. The storage chamber is used to store braking medium. A piston that matches the piston chamber and is slidably disposed in the piston chamber; According to any one of claims 1 to 7, the base further includes a mounting cavity matching the pump, the mounting cavity communicating with the connection port and the storage cavity respectively, at least a portion of the pump being disposed in the mounting cavity, and the moving member driving the pushing member to move within the mounting cavity to change the space size within the mounting cavity.

9. A braking device, characterized in that, include: Brake; The braking device according to claim 8, wherein the braking device is connected to the brake via the connection port.

10. 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 according to claim 9, 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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