A hydraulic block, hydraulic module and vehicle

Abstract

The hydraulic block, the hydraulic module and the vehicle are disclosed. The hydraulic block comprises a hydraulic block base body, a front brake fluid pipeline, an assembly cavity and a rear brake fluid pipeline are arranged on the hydraulic block base body, an outlet end of the front brake fluid pipeline is connected to a bottom of the assembly cavity, an inlet end of the rear brake fluid pipeline is connected to a side wall of the assembly cavity, an abutting surface and a vertical surface are arranged on an inner wall of the assembly cavity, the abutting surface and the vertical surface form a stepped structure, a communication groove is arranged on the abutting surface, one end of the communication groove is in communication with the inlet end of the rear brake fluid pipeline, and the other end of the communication groove is in communication with the assembly cavity. The hydraulic block for the brake system disclosed herein is convenient to process and reliable to control.

Description

Technical Field

[0001] This application relates to, but is not limited to, hydraulic braking technology, particularly a hydraulic block, a hydraulic module, and a vehicle. Background Technology

[0002] With the continuous development and upgrading of the automotive industry, the power sources of automobiles have gradually shifted from internal combustion engines to diversified approaches. Along with this diversification, automotive braking systems are also undergoing upgrades. Traditional vacuum boosters have been gradually replaced by electric motor-assisted brake boosters. The current mainstream trend is the One Box intelligent booster, which integrates ESC (Electronic Stability Controller) functionality. The One Box's hydraulic control block is a crucial component of the intelligent booster, integrating all brake fluid control lines.

[0003] In current hydraulic control blocks, the return oil of the foot-feel simulator is usually achieved by adding a 360° annular groove inside the simulator mounting cavity. This groove is used to guide the brake fluid discharged from the foot-feel simulator into the annular groove. The brake fluid in the annular groove enters the brake fluid reservoir through horizontal and vertical boreholes that are connected to the annular groove.

[0004] For this type of hydraulic control block with 360°, the 360° annular groove is difficult to machine and requires high processing technology, which increases the manufacturing cost of the hydraulic control block. Summary of the Invention

[0005] This application provides a hydraulic block, a hydraulic module, and a vehicle, which are easy to process and reliable to control.

[0006] This application provides a hydraulic block for a braking system. The hydraulic block includes a hydraulic block base, on which a brake fluid front end pipeline, an assembly cavity, and a brake fluid rear end pipeline are provided. The outlet end of the brake fluid front end pipeline is connected to the bottom of the assembly cavity, and the inlet end of the brake fluid rear end pipeline is connected to the side wall of the assembly cavity.

[0007] The inner wall of the assembly cavity is provided with an abutment surface and a vertical surface, which form a stepped structure; a connecting groove is provided on the abutment surface, one end of which is connected to the inlet end of the brake fluid rear pipeline, and the other end is connected to the assembly cavity.

[0008] Furthermore, the inlet end of the brake fluid rear pipeline forms a first opening on the contact surface, and the inlet end of the brake fluid rear pipeline forms a second opening on the vertical surface, with the first opening and the second opening communicating with each other;

[0009] One end of the connecting groove is connected to the first opening.

[0010] Furthermore, the number of the connecting grooves is one, and the connecting groove extends along the radial direction of the assembly cavity; or, the number of the connecting grooves is set to two, and the two connecting grooves are respectively located on both sides of the inlet end of the brake fluid rear end pipeline; or, the number of the connecting grooves is multiple, and the multiple connecting grooves are arranged side by side to connect the brake fluid rear end pipeline and the assembly cavity.

[0011] Furthermore, the connecting groove is a straight groove; or, the connecting groove is an arc-shaped groove, with its center located on the side of the abutment surface near the central axis of the assembly cavity.

[0012] Furthermore, the brake fluid rear pipeline includes a pipeline body and a connecting channel disposed at the front end of the pipeline body. The pipeline body extends along the length direction of the hydraulic block base. One end of the connecting channel is connected to the pipeline body, and the other end extends to the contact surface as the inlet end of the brake fluid rear pipeline and is connected to the connecting groove.

[0013] Furthermore, the hydraulic block base is also provided with a reservoir interface groove, and the brake fluid rear pipeline extends axially and connects to the bottom of the reservoir interface groove.

[0014] Furthermore, the facade is a cylindrical surface, and the contact surface is a plane perpendicular to the facade.

[0015] This application embodiment also provides a hydraulic module, which includes a sliding block and the aforementioned hydraulic block. The sliding block is installed in the assembly cavity and divides the assembly cavity into a first cavity and a second cavity. The first cavity is connected to the front end pipeline of the brake fluid, and the second cavity is connected to the rear end pipeline of the brake fluid.

[0016] The brake fluid in the first cavity can push the sliding block to move, thereby pressing the brake fluid in the second cavity into the brake fluid rear pipeline.

[0017] Furthermore, the hydraulic module also includes a reset device, which includes a mounting sleeve and an elastic element;

[0018] The mounting sleeve and the sliding block enclose to form the second cavity, or the mounting sleeve, a portion of the inner wall of the assembly cavity, and the sliding block enclose to form the second cavity;

[0019] One end of the elastic element is disposed inside the mounting sleeve, and the other end abuts against the sliding block to provide a restoring force.

[0020] Furthermore, the sliding block includes a first hollow cylindrical segment extending toward the mounting sleeve, the space within the first hollow cylindrical segment serving as part of the second cavity;

[0021] An overflow hole is formed on the wall of the first hollow cylindrical section.

[0022] Furthermore, the mounting sleeve includes a second hollow cylindrical segment extending toward the sliding block, and the second hollow cylindrical segment is sleeved on the outside of the first hollow cylindrical segment, the first hollow cylindrical segment and the second hollow cylindrical segment forming the second cavity;

[0023] The end of the second hollow cylindrical segment protrudes radially outward, forming an annular gap between the end of the second hollow cylindrical segment and the first hollow cylindrical segment, and the annular gap communicates with the flow hole.

[0024] This application also provides a vehicle that includes the aforementioned hydraulic module.

[0025] Compared to some other technologies, this application has the following advantages:

[0026] The hydraulic block for a braking system provided in this application embodiment has a connecting groove on the abutment surface within the assembly cavity. The connecting groove connects the brake fluid rear pipeline and the assembly cavity, allowing the brake fluid in the assembly cavity to enter the brake fluid rear pipeline through the connecting groove. The connecting groove is located on the abutment surface, has a shorter path, and can be extended radially, eliminating the need for the existing 360° annular groove. This simplifies processing and reduces the manufacturing cost of the hydraulic block.

[0027] The hydraulic module provided in this application embodiment has the aforementioned hydraulic block. A sliding block is installed within the assembly cavity of the hydraulic block, dividing the assembly cavity into a first cavity and a second cavity. The sliding block slides within the assembly cavity, pumping brake fluid from the second cavity into the brake fluid rear pipeline. This results in a shorter brake fluid flow path and more reliable braking. The hydraulic module also has a lower cost, facilitating the reduction of normal manufacturing costs.

[0028] The vehicle provided in this application embodiment has the aforementioned hydraulic module, which has low manufacturing cost, reliable braking, and improves user satisfaction.

[0029] Other features and advantages of this application will be set forth in the following description. Attached Figure Description

[0030] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0031] Figure 1 This is a schematic diagram of the structure of a hydraulic control block in the prior art;

[0032] Figure 2 This is a schematic diagram of the structure of the hydraulic block described in the embodiments of this application. Figure 1;

[0033] Figure 3 This is a schematic diagram of the structure of the hydraulic module described in the embodiment of this application;

[0034] Figure 4 for Figure 3 Enlarged view of the structure at the middle sliding block;

[0035] Figure 5 This is a schematic diagram of the structure of the hydraulic block described in the embodiments of this application. Figure 2 ;

[0036] Figure 6 for Figure 5 Enlarged view of the structure at the middle assembly cavity.

[0037] Illustration:

[0038] 1-Hydraulic block base, 11-Brake fluid front end pipeline, 12-Assembly cavity, 121-First cavity, 122-Second cavity, 123-Abutting surface, 124-Connecting groove, 125-First opening, 126-Vertical surface, 127-Second opening, 13-Brake fluid rear end pipeline, 14-Reservoir tank interface groove, 2-Sliding block, 21-First hollow cylindrical section, 211-Flow hole, 3-Reset device, 31-Mounting sleeve, 311-Second hollow cylindrical section, 312-Annular gap, 32-Elastic element, 33-Guide rod, 4-Annular groove. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0040] Existing hydraulic control blocks, besides facing difficulties in machining the annular groove 4, also suffer from excessively long and bend-heavy brake fluid rear-end lines. Figure 1 As shown, the brake fluid in the rear brake fluid line cannot directly enter the brake fluid reservoir. It needs to pass through a transverse brake fluid line and another longitudinal brake fluid line to reach the reservoir. Because the longitudinal rear brake fluid line connected to the annular groove 4 is quite deep, under current technological conditions, it requires a larger diameter than other brake fluid lines to be machined. This necessitates the use of steel balls of a different size to seal this brake fluid line, increasing the variety of parts and increasing the risk of material mixing.

[0041] This application provides a hydraulic block for a braking system, such as... Figures 2 to 6As shown, the hydraulic block includes a hydraulic block base 1. The hydraulic block base 1 is provided with a brake fluid front end pipe 11, an assembly cavity 12, and a brake fluid rear end pipe 13. The outlet end of the brake fluid front end pipe 11 is connected to the bottom of the assembly cavity 12, and the inlet end of the brake fluid rear end pipe 13 is connected to the side wall of the assembly cavity 12. The side wall of the assembly cavity 12 is provided with an abutment surface 123 and a vertical surface 126, which form a stepped structure. A connecting groove 124 is provided on the abutment surface 123. One end of the connecting groove 124 is connected to the inlet end of the brake fluid rear end pipe 13, and the other end is connected to the assembly cavity 12.

[0042] The brake fluid front-end line 11 is connected to the assembly cavity 12, and the assembly cavity 12 is connected to the brake fluid rear-end line 13, which is used to connect to the reservoir. The brake fluid flows along the aforementioned path to achieve a simulated foot feel effect when braking.

[0043] In the axial direction, the axially extending portion of the brake fluid front end pipe 11 (i.e. Figure 2 The brake fluid front-end line 11 is indicated in the label. Figure 2 The portion extending axially (shown only in the diagram) can be located within the assembly cavity 12, allowing the brake fluid front end pipe 11 to connect to the bottom of the assembly cavity 12 simply by extending axially, without further bends or turns. The brake fluid rear end pipe 13 is arranged parallel to the assembly cavity 12 in the axial direction. In other words, the brake fluid rear end pipe 13 cannot connect to the bottom of the assembly cavity 12 when extending axially only. When extending axially, the brake fluid rear end pipe 13 connects to the wall surface of the stepped structure of the assembly cavity 12 (e.g., Figure 2 (As shown); one end of the connecting groove 124 is connected to the inlet end of the brake fluid rear pipeline 13 on the wall (abutment surface 123) at the stepped structure, and the other end of the connecting groove 124 is connected to the assembly cavity 12, so that the brake fluid in the assembly cavity 12 can enter the brake fluid rear pipeline 13 through the connecting groove 124. (As shown) Figure 2 In the orientation shown, the connecting groove 124 is set on a horizontal surface, which is convenient for processing; while the annular groove 4 in the prior art is set on the inner circumferential surface and has a certain depth in the radial direction, which is more difficult to process.

[0044] It should be understood that when the brake fluid rear end line 13 and the assembly cavity 12 are arranged parallel to each other in the axial direction and the distance between them is far (not shown in the figure), in other words, when the brake fluid rear end line 13 cannot communicate with the assembly cavity 12 when it only extends in the axial direction, the brake fluid rear end line 13 can extend obliquely toward the assembly cavity 12 to communicate with the inner wall of the assembly cavity 12, and form the inlet end of the brake fluid rear end line 13 on the abutment surface 123.

[0045] In practical applications, the facade 126 is the inner wall of the assembly cavity 12, and can be a cylindrical wall; the abutment surface 123 is a plane perpendicular to the facade 126. A foot-sensor simulator can be installed inside the assembly cavity 12. After the foot-sensor simulator is installed into the assembly cavity 12, it abuts against the abutment surface 123 axially; the outer peripheral surface of the foot-sensor simulator and the facade 126 can have a clearance fit. A connecting groove 124 is provided on the abutment surface 123. The connecting groove 124 has a certain depth in the axial direction, and the connecting groove 124 and the abutment end face of the foot-sensor simulator form a complete channel for brake fluid to pass through.

[0046] Of course, the angle between the contact surface 123 and the facade 126 can be 90° (i.e., perpendicular), or other angles. That is, the contact surface 123 and the facade 126 may not be precisely perpendicular, and there may be a certain angle between the contact surface 123 and the cross section perpendicular to the facade 126.

[0047] In the actual processing, with the brake fluid rear pipeline 13 already connected to the assembly cavity 12 and an inlet end formed on the inner wall of the assembly cavity 12, the machining tool (such as a milling cutter) enters the assembly cavity 12 axially and machines the connecting groove 124 on the abutment surface 123. There is no need for the complicated operation of machining the annular groove 4 by rotating 360° circumferentially. The machining of the connecting groove 124 is convenient and quick, reducing the manufacturing cost of the hydraulic block.

[0048] In addition, the hydraulic control block, as a main component of the intelligent booster, serves as the mounting base for other components. The hydraulic control block is machined with mounting interfaces for other components, including but not limited to motors, controllers, manual master cylinders, electric master cylinders, foot-sensing simulators, and liquid storage tanks. These structures have little impact on the technical problems to be solved by the embodiments of this application, and will not be described in detail here.

[0049] In one exemplary embodiment, such as Figure 5 and Figure 6 As shown, the inlet end of the brake fluid rear pipeline 13 forms a first opening 125 on the contact surface 123, and the inlet end of the brake fluid rear pipeline forms a second opening 127 on the vertical surface 126. The first opening 125 and the second opening 127 are connected; one end of the connecting groove 124 is connected to the first opening 125.

[0050] The first opening 125 is located on the contact surface 123. At the same time, the connecting groove 124 is also provided on the contact surface 123. The connecting groove 124 is connected to the first opening 125, so that the connecting groove 124 can be connected to the inlet end of the brake fluid rear pipeline 13.

[0051] The abutment surface 123 is annular, and the radial interior of the abutment surface 123 is the space of the assembly cavity 12; at the first opening 125, the connecting groove 124 passes through the abutment surface 123 radially to connect the assembly cavity 12 and the first opening 125.

[0052] After the foot-feed simulator is installed into the assembly cavity 12, the foot-feed simulator will press against the second opening 127, which will block and seal the second opening 127. Of course, no sealing is required here, and whether brake fluid flows through this area does not affect the normal entry of brake fluid into the rear brake fluid line 13.

[0053] In one exemplary embodiment, the number of connecting grooves 124 is one, and the connecting groove 124 extends radially along the assembly cavity 12; or, the number of connecting grooves 124 is set to two, and the two connecting grooves 124 are respectively located on both sides of the inlet end of the brake fluid rear pipeline 13, such as... Figure 5 and Figure 6 As shown; or, the number of connecting grooves 124 is multiple, and multiple connecting grooves 124 are arranged side by side to connect the brake fluid rear end pipe 13 and the assembly cavity 12.

[0054] There are several ways to specifically set the connecting groove 124. For example, the connecting groove 124 can be set as one, and at the first opening 125, the connecting groove 124 can connect the assembly cavity 12 and the first opening 125 by radially penetrating the abutment surface 123.

[0055] Of course, the number of connecting slots 124 can be two or more, and can be adjusted according to actual needs.

[0056] In one exemplary embodiment, the connecting groove 124 is a straight groove; or, the connecting groove 124 is an arc-shaped groove, with its center located on the side of the abutment surface 123 near the central axis of the assembly cavity 12, such as... Figure 5 and Figure 6 As shown.

[0057] The connecting groove 124 can be a straight groove, which is simple in form and easy to process. The connecting groove 124 can also be an arc groove, with the center of the circle located on the side of the abutment surface 123 near the central axis of the assembly cavity 12, so as to shorten the length of the connecting groove 124 as much as possible and make the corner angle at the connection of the two ends of the connecting groove 124 as smooth as possible, avoiding sharp bends.

[0058] In an exemplary embodiment, the brake fluid rear pipeline 13 includes a pipeline body and a connecting channel (not shown in the figure) disposed at the front end of the pipeline body. The pipeline body extends along the length direction of the hydraulic block base 1. One end of the connecting channel is connected to the pipeline body, and the other end extends to the contact surface 123 as the inlet end of the brake fluid rear pipeline 13 and is connected to the connecting groove 124.

[0059] When the brake fluid rear end line 13 and the assembly cavity 12 are arranged parallel to each other in the axial direction and the distance between them is large, in other words, when the brake fluid rear end line 13 cannot communicate with the assembly cavity 12 when it only extends in the axial direction, the brake fluid rear end line 13 (i.e. the connecting channel) can extend obliquely toward the assembly cavity 12 to communicate with the inner wall of the assembly cavity 12, and form the inlet end of the brake fluid rear end line 13 on the abutment surface 123.

[0060] The connection channel can be a through hole formed separately in the subsequent processing.

[0061] In one exemplary embodiment, such as Figure 2 and Figure 3 As shown, a reservoir interface groove 14 is also provided on the hydraulic block base 1, and the brake fluid rear end pipe 13 extends axially and is connected to the bottom of the reservoir interface groove 14.

[0062] The reservoir interface is connected to the reservoir. Brake fluid in the brake fluid downstream line 13 can enter the reservoir through the reservoir interface slot 14.

[0063] In one exemplary embodiment, such as Figure 6 As shown, elevation 126 is a cylindrical surface, and contact surface 123 is a plane perpendicular to elevation 126.

[0064] The vertical surface 126 is the inner wall of the assembly cavity 12, and can be a cylindrical wall. The abutment surface 123 is a plane perpendicular to the vertical surface 126. A foot-sensor simulator can be installed inside the assembly cavity 12. After the foot-sensor simulator is installed into the assembly cavity 12, it abuts against the abutment surface 123 axially. The outer peripheral surface of the foot-sensor simulator and the vertical surface 126 can be in clearance fit. A connecting groove 124 is provided on the abutment surface 123. The connecting groove 124 has a certain depth in the axial direction. The connecting groove 124 and the abutment end face of the foot-sensor simulator form a complete channel for brake fluid to pass through.

[0065] Of course, the angle between the contact surface 123 and the facade 126 can be 90° (i.e., perpendicular), or other angles. That is, the contact surface 123 and the facade 126 may not be precisely perpendicular, and there may be a certain angle between the contact surface 123 and the cross section perpendicular to the facade 126.

[0066] The hydraulic block provided in this application uses a connecting groove 124 instead of the existing 360° annular groove 4 structure. This eliminates the need to create an annular groove 4 on the circumferential surface; the connecting groove 124 can be machined axially on the contact surface 123, reducing the amount of machining and lowering the machining difficulty. The connecting groove 124 is connected to the brake fluid reservoir via a longitudinal brake fluid rear-end pipe 13. Compared to the prior art, this reduces the machining of two brake fluid pipes and the use of two steel balls, increasing the production cycle time and eliminating the risk of mixing different types of steel balls.

[0067] This application also provides a hydraulic module, such as... Figure 3 and Figure 4 As shown, the hydraulic module includes a sliding block 2 and the aforementioned hydraulic block. The sliding block 2 is installed in the assembly cavity 12 and divides the assembly cavity 12 into a first cavity 121 and a second cavity 122. The first cavity 121 is connected to the front end of the brake fluid pipeline 11, and the second cavity 122 is connected to the rear end of the brake fluid pipeline 13. The brake fluid in the first cavity 121 can push the sliding block 2 to move, and pump the brake fluid in the second cavity 122 into the rear end of the brake fluid pipeline 13.

[0068] Slider 2 can be a foot-feel simulator.

[0069] The sliding block 2 divides the assembly cavity 12 into a relatively independent first cavity 121 and a second cavity 122. The brake fluid in the first cavity 121 and the second cavity 122 will not mix. A sealing ring can be provided on the outer peripheral surface of the sliding block 2 to achieve the above-mentioned separation effect and ensure the sliding seal of the sliding block 2 during the sliding process.

[0070] When the brake pedal is depressed, the brake fluid in the front brake fluid line 11 enters the first chamber 121 and pushes the sliding block 2 downward. The sliding block 2 compresses the brake fluid in the second chamber 122 into the rear brake fluid line 13, and finally into the reservoir, providing appropriate resistance to simulate the feel of a brake pedal. The aforementioned front and rear lines refer to the flow direction of the brake fluid along this path. For example, the front brake fluid line 11 is located upstream of the assembly chamber 12, and the rear brake fluid line 13 is located downstream of the assembly chamber 12.

[0071] In one exemplary embodiment, such as Figure 3 and Figure 4 As shown, the hydraulic module also includes a reset device 3, which includes a mounting sleeve 31 and an elastic element 32; the mounting sleeve 31 and the sliding block 2 are arranged to form a second cavity 122, or the mounting sleeve 31, part of the inner wall of the assembly cavity 12 and the sliding block 2 are arranged to form a second cavity 122; one end of the elastic element 32 is disposed in the mounting sleeve 31, and the other end abuts against the sliding block 2 to provide a reset force.

[0072] The hydraulic module also includes a reset device 3, that is, after the user releases the pedal, the sliding block 2, i.e. the brake fluid, automatically resets to prepare for the next time the user presses the pedal.

[0073] After the user releases the pedal, the elastic element 32 pushes the sliding block 2 to reset the sliding block 2. The sliding block 2 pushes the brake fluid in the first cavity 121 into the brake fluid front end pipe 11, and the brake fluid in the reservoir enters the second cavity 122 through the brake fluid rear end pipe 13.

[0074] The elastic element 32 can be a spring.

[0075] In one exemplary embodiment, such as Figure 4 As shown, the sliding block 2 includes a first hollow cylindrical section 21 extending toward the mounting sleeve 31, and the space inside the first hollow cylindrical section 21 serves as part of the second cavity 122; an overflow hole 211 is formed on the wall of the first hollow cylindrical section 21.

[0076] The second cavity 122 is connected to the connecting groove 124 through the flow hole 211, so that the brake fluid in the second cavity 122 enters the reservoir through the flow hole 211, the connecting groove 124, and the brake fluid rear end pipe 13.

[0077] The space formed by the first hollow cylindrical segment 21 facilitates the installation of the elastic element 32.

[0078] In one exemplary embodiment, such as Figure 4 As shown, the mounting sleeve 31 includes a second hollow cylindrical section 311 extending toward the sliding block 2, and the second hollow cylindrical section 311 is sleeved on the outside of the first hollow cylindrical section 21. The first hollow cylindrical section 21 and the second hollow cylindrical section 311 surround each other to form a second cavity 122. The end of the second hollow cylindrical section 311 protrudes radially outward, so that an annular gap 312 is formed between the end of the second hollow cylindrical section 311 and the first hollow cylindrical section 21. The annular gap 312 communicates with the flow hole 211.

[0079] The first hollow cylindrical segment 21 is inserted into the second hollow cylindrical segment 311, while the second hollow cylindrical segment 311 remains stationary (i.e., the mounting sleeve 31 remains stationary). The first hollow cylindrical segment 21 moves axially relative to the second hollow cylindrical segment 311 to compress the elastic element 32. The elastic element 32 is installed inside the first hollow cylindrical segment 21. A guide rod 33 may also be provided inside the first hollow cylindrical segment 21, and the elastic element 32 is sleeved on the outside of the guide rod 33 to ensure the normal expansion and contraction of the elastic element 32.

[0080] An annular gap 312 is formed between the end of the second hollow cylindrical section 311 and the first hollow cylindrical section 21. The annular gap 312 has a certain length in the axial direction to ensure that the flow hole 211 can always communicate with the annular gap 312 during the axial movement of the first hollow cylindrical section 21, thus preventing the flow hole 211 from being blocked. The flow path of the brake fluid in the second cavity 122 is: second cavity 122 — flow hole 211 — annular gap 312 — connecting groove 124 — brake fluid rear end pipe 13 — reservoir.

[0081] In actual use, when the vehicle needs to brake, the driver presses the brake pedal. Part of the brake fluid inside the master cylinder (connected to the brake fluid supply module via the front brake fluid line 11) is pushed by the piston into the upper part of the foot-feed simulator piston (i.e., the first chamber 121). The brake fluid is then pushed by the foot-feed simulator piston into the connecting groove 124. After passing through the connecting groove 124, the brake fluid enters the rear brake fluid line 13, which is connected to the connecting groove 124. Finally, the brake fluid enters the brake fluid reservoir through the reservoir interface. When the braking process ends, the brake pedal is released, and the pistons of the master cylinder and the foot-feed simulator return to their original positions under the action of their respective springs. The brake fluid flows from the reservoir through the rear brake fluid line 13 and the connecting groove 124, finally entering the lower chamber of the foot-feed simulator piston (i.e., the second chamber 122), completing one braking cycle.

[0082] This application also provides a vehicle that includes the aforementioned hydraulic module.

[0083] The vehicle provided in this application embodiment has the aforementioned hydraulic module, which has low manufacturing cost, reliable braking, and improves user satisfaction.

[0084] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "one end", and "one side" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0085] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "connection," "assembly," and "installation" should be interpreted broadly. For example, the term "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0086] The embodiments described in this application are exemplary and not limiting, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with or in lieu of any other feature or element in any other embodiment.

[0087] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application can also be combined with any conventional features or elements to form a unique technical solution as defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other technical solutions to form another unique technical solution as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

Claims

1. A hydraulic block for a braking system, characterized in that, The system includes a hydraulic block base, on which a brake fluid front end pipeline, an assembly cavity, and a brake fluid rear end pipeline are provided. The outlet end of the brake fluid front end pipeline is connected to the bottom of the assembly cavity, and the inlet end of the brake fluid rear end pipeline is connected to the side wall of the assembly cavity. The inner wall of the assembly cavity is provided with an abutment surface and a vertical surface, and the abutment surface and the vertical surface form a stepped structure; a connecting groove is provided on the abutment surface, one end of the connecting groove is connected to the inlet end of the brake fluid rear pipeline, and the other end is connected to the assembly cavity. The contact surface is an annular plane, and the connecting groove extends along the radial direction of the contact surface and penetrates the radial inner edge of the contact surface to connect the assembly cavity and the inlet end of the brake fluid rear pipeline. The facade is cylindrical, and the contact surface is perpendicular to the facade. The inlet end of the brake fluid rear pipeline forms a first opening on the contact surface, and the inlet end of the brake fluid rear pipeline forms a second opening on the vertical surface, with the first opening and the second opening communicating with each other. One end of the connecting groove is connected to the first opening.

2. The hydraulic block for a braking system according to claim 1, characterized in that, The number of the connecting slots is one, and the connecting slot extends radially along the assembly cavity; or, The number of the connecting grooves is set to two, and the two connecting grooves are respectively located on both sides of the inlet end of the brake fluid rear pipeline; or, The number of the connecting slots is three or more, and the three or more connecting slots are arranged side by side to connect the brake fluid rear pipeline and the assembly cavity.

3. The hydraulic block for a braking system according to claim 1, characterized in that, The connecting groove is a straight groove; or... The connecting groove is an arc-shaped groove, and its center is located on the side of the abutment surface near the central axis of the assembly cavity.

4. The hydraulic block for a braking system according to claim 1, characterized in that, The brake fluid rear pipeline includes a pipeline body and a connecting channel disposed at the front end of the pipeline body. The pipeline body extends along the length direction of the hydraulic block base. One end of the connecting channel is connected to the pipeline body, and the other end extends to the abutment surface as the inlet end of the brake fluid rear pipeline and is connected to the connecting groove.

5. The hydraulic block for a braking system according to any one of claims 1 to 4, characterized in that, The hydraulic block base is also provided with a reservoir interface groove, and the brake fluid rear end pipeline extends axially and connects to the bottom of the reservoir interface groove.

6. A hydraulic module, characterized in that, Includes a sliding block and a hydraulic block as described in any one of claims 1 to 5, wherein the sliding block is installed in the assembly cavity and divides the assembly cavity into a first cavity and a second cavity, the first cavity being connected to the front end of the brake fluid pipeline and the second cavity being connected to the rear end of the brake fluid pipeline; The brake fluid in the first cavity can push the sliding block to move, thereby pressing the brake fluid in the second cavity into the brake fluid rear pipeline.

7. The hydraulic module according to claim 6, characterized in that, It also includes a reset device, which comprises a mounting sleeve and an elastic element; The mounting sleeve and the sliding block enclose to form the second cavity, or the mounting sleeve, a portion of the inner wall of the assembly cavity, and the sliding block enclose to form the second cavity; One end of the elastic element is disposed inside the mounting sleeve, and the other end abuts against the sliding block to provide a restoring force.

8. The hydraulic module according to claim 7, characterized in that, The sliding block includes a first hollow cylindrical segment extending toward the mounting sleeve, the space within the first hollow cylindrical segment serving as part of the second cavity; An overflow hole is formed on the wall of the first hollow cylindrical section.

9. The hydraulic module according to claim 8, characterized in that, The mounting sleeve includes a second hollow cylindrical segment extending toward the sliding block, and the second hollow cylindrical segment is sleeved on the outside of the first hollow cylindrical segment, the first hollow cylindrical segment and the second hollow cylindrical segment forming the second cavity; The end of the second hollow cylindrical segment protrudes radially outward, forming an annular gap between the end of the second hollow cylindrical segment and the first hollow cylindrical segment, and the annular gap communicates with the flow hole.

10. A vehicle, characterized in that, Includes the hydraulic module as described in any one of claims 6 to 9.

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