Valve body and vehicle braking system operation control assembly

Abstract

The utility model discloses a valve body and a vehicle braking system operation control assembly. The valve body comprises a valve body main body and an internal oil way. The valve body main body comprises an electromagnetic valve mounting surface, a motor mounting surface, a bracket connecting surface and a main cylinder base mounting surface; the internal oil way is arranged in the valve body and comprises a first oil way, a second oil way and a third oil way connected with the first oil way and the second oil way, and the center line of the third oil way perpendicularly intersects with the center line of the first oil way and the center line of the second oil way. The valve body is connected with a hydraulic structural element through the mounting hole and the containing part on the outer surface of the valve body, hydraulic connection is completed through an oil way in the valve body, brake hydraulic pressure is generated and adjusted, follow-up one-time assembly with a control unit is facilitated, the assembly process is simple, the assembly efficiency is high, and the cost is low. The structure is beneficial for improving the working efficiency of the vehicle braking system operation control assembly control system.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle brake system operation control components, in particular to a valve body and a vehicle brake system operation control component. Background Art

[0002] Valve bodies are typically used to connect hydraulic components and generate and regulate brake hydraulic pressure. The valve body is connected to the hydraulic components through mounting holes and accommodating areas on its outer surface. The hydraulic connection is completed through the internal oil circuits of the valve body to generate and regulate brake hydraulic pressure.

[0003] The valve body structure used to operate the wire control brake component in the existing vehicle brake system operation control component brake system is relatively scattered, which is not conducive to the subsequent one-time assembly with the control unit. The assembly process is complicated and the assembly efficiency is low. The structure is not conducive to the operation of the vehicle brake system operation control component control system. It is necessary to optimize the valve body structure for the use of the vehicle brake system operation control component brake system. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a valve body and a vehicle brake system operation control component.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] In a first aspect, a valve body is provided, comprising:

[0007] The valve body is a block-shaped structure, including a solenoid valve mounting surface, a motor mounting surface arranged parallel to the solenoid valve mounting surface, a bracket connecting surface connecting the solenoid valve mounting surface and the motor mounting surface and arranged perpendicular to both, and a master cylinder base mounting surface arranged parallel to the bracket connecting surface;

[0008] an internal oil circuit, disposed inside the valve body, the internal oil circuit including a first oil circuit, a second oil circuit, and a third oil circuit connecting the first oil circuit and the second oil circuit, wherein a center line of the third oil circuit intersects perpendicularly with a center line of the first oil circuit and a center line of the second oil circuit, respectively; and

[0009] The solenoid valve mounting surface is provided with a solenoid valve mounting hole and a pressure sensor mounting hole. The first oil circuit is coaxially arranged with the solenoid valve mounting hole, and the second oil circuit is coaxially arranged with the pressure sensor mounting hole.

[0010] In some embodiments, the solenoid valve mounting surface is also provided with a pedal position sensor mounting hole, a pedal simulator accommodating cavity, a leak-proof groove, a weight-reducing groove, a plunger assembly mounting hole, a rotor position sensor mounting hole and a motor pin mounting hole. The plunger assembly mounting hole, the rotor position sensor mounting hole and the motor pin mounting hole all pass through the valve body from the solenoid valve mounting surface and extend to the motor mounting surface.

[0011] In certain embodiments, an anti-error step 2.6 mm higher than the solenoid valve mounting surface is provided on the periphery of the pressure sensor mounting hole.

[0012] In some embodiments, the motor mounting surface is provided with a fluid outlet for connecting to a brake wheel cylinder, and the bracket connecting surface is provided with a brake master cylinder mounting hole that passes through the valve body and extends to the master cylinder base mounting surface, and a magnetic strip assembly mounting hole that is parallel to the center line of the brake master cylinder mounting hole;

[0013] The valve body also includes a leakage hole mounting surface and an oil pot mounting surface arranged parallel to the leakage hole mounting surface. The solenoid valve mounting surface connects the leakage hole mounting surface and the oil pot mounting surface and is arranged perpendicular to both. The leakage hole mounting surface is provided with a leakage hole for connecting the plunger assembly and the anti-leakage groove, and the oil pot mounting surface is also provided with an oil pot mounting hole.

[0014] In some embodiments, the central axis of the solenoid valve mounting hole is arranged parallel to the central axis of the pressure sensor mounting hole, the central axis of the pedal position sensor mounting hole, the central axis of the pedal simulator accommodating cavity, the central axis of the leak-proof groove and the central axis of the weight reduction groove.

[0015] In some embodiments, the center axis of the plunger assembly mounting hole, the center axis of the rotor position sensor mounting hole, the center axis of the motor pin mounting hole, and the center axis of the liquid outlet are all arranged parallel to the center axis of the magnetic stripe assembly mounting hole, and the center axis of the plunger assembly mounting hole is arranged perpendicular to the center axis of the brake master cylinder mounting hole.

[0016] In some embodiments, the central axis of the leakage hole is arranged parallel to the central axis of the oil tank mounting hole and is respectively arranged perpendicular to the central axis of the anti-leakage groove and the central axis of the brake master cylinder mounting hole.

[0017] In some embodiments, the spacing between the center lines of the first oil circuit, the second oil circuit, and the third oil circuit is greater than 5.2 mm; the spacing between the center lines of the first oil circuit, the second oil circuit, and the third oil circuit and the corresponding parallel outer surfaces of the valve body is greater than 2 mm; the spacing between the center of the intersection of the third oil circuit with the first oil circuit and the second oil circuit and the corresponding parallel outer surfaces of the valve body is greater than 5.1 mm.

[0018] In certain embodiments, the solenoid valve mounting holes include a normally closed valve mounting hole, a normally open valve mounting hole, a test separator valve mounting hole, a loop isolation valve mounting hole, a plunger isolation valve mounting hole, and a simulator isolation valve mounting hole.

[0019] In a second aspect, a vehicle braking system operation control component is provided, comprising all the aforementioned valve bodies.

[0020] The beneficial effects of the present invention are as follows: the present invention connects the valve body with the hydraulic structural element through the mounting holes and the accommodating parts on the outer surface of the valve body, completes the hydraulic connection through the internal oil circuit of the valve body and realizes the generation and adjustment of the brake hydraulic pressure, which is conducive to the subsequent one-time assembly with the control unit, the assembly process is simple, the assembly efficiency is high, and the structure is conducive to improving the working efficiency of the control system of the vehicle brake system operation control component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the valve body provided in one embodiment of the present invention;

[0023] Figure 2 This is a structural diagram of the solenoid valve mounting surface in the valve body provided in one embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the internal oil circuit and the mounting surface of the leakage hole in the valve body provided in one embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the motor mounting surface in the valve body provided in one embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the mounting surface of the master cylinder base in the valve body provided in one embodiment of the present utility model. DETAILED DESCRIPTION

[0027] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, a valve body and a vehicle brake system operation control component are provided, including a valve body main body 10 and an internal oil circuit 20.

[0029] The valve body 10 is a block structure, which includes a solenoid valve mounting surface 101, a motor mounting surface 102 arranged parallel to the solenoid valve mounting surface 101, a bracket connecting surface 103 connecting the solenoid valve mounting surface 101 and the motor mounting surface 102 and arranged perpendicular to the two, and a master cylinder base mounting surface 104 arranged parallel to the bracket connecting surface 103. The solenoid valve mounting surface 101 is provided with a solenoid valve mounting hole 1011 and a pressure sensor mounting hole 1012.

[0030] like Figure 2 As shown, in one embodiment, the solenoid valve mounting surface 101 is also provided with a pedal position sensor mounting hole 1013, a pedal simulator accommodating cavity 1014, a leak-proof groove 1015, a weight reduction groove 1016, a plunger assembly mounting hole 1021, a rotor position sensor mounting hole 1022 and a motor pin mounting hole 1023. The plunger assembly mounting hole 1021, the rotor position sensor mounting hole 1022 and the motor pin mounting hole 1023 all pass through the valve body 10 from the solenoid valve mounting surface 101 and extend to the motor mounting surface 102.

[0031] It can be understood that the mounting holes of the present invention are concentratedly distributed on the solenoid valve mounting surface 101. Compared with the multi-surface scattered setting, it is conducive to the subsequent one-time assembly with the control unit, simplifies the assembly process, improves the assembly efficiency, and avoids the assembly failure caused by damage to the precision electronic components during the complicated assembly process.

[0032] like Figure 2 As shown, in one embodiment, an anti-error step 2.6 mm higher than the solenoid valve mounting surface 101 is provided on the periphery of the pressure sensor mounting hole 1012 .

[0033] It is understandable that the pressure sensor mounting hole 1012 and the adjacent steel ball riveting hole for sealing the oil circuit are both set to a diameter of 3.2 mm. While reducing the processing tool change process, improving processing efficiency, and reducing processing costs, it also causes the problem of assembly mis-pressing. Setting an anti-error step 2.6 mm higher than the solenoid valve mounting surface 101 not only retains the processing convenience advantage of avoiding multiple tool changes under the same processing diameter, but also clearly distinguishes the pressure sensor mounting hole 1012 from the adjacent steel ball riveting hole for sealing the oil circuit. At the same time, the geometric boundary is not excessively extended in structure, thereby ensuring the compactness of the valve body 10.

[0034] like Figure 2 As shown, in one embodiment, the pedal position sensor mounting hole 1013 includes a positioning riveting mounting hole.

[0035] It can be understood that the positioning rivet hole, on the one hand, provides a guarantee for the correctness of the riveted assembly position of the pedal position sensor, and on the other hand, it also plays a limiting role, avoiding the circumferential rotation of the sensor caused by vibration during long-term use and resulting in assembly misalignment and failure, thereby improving the reliability of the pedal position sensor.

[0036] like Figure 1-5 As shown, in one embodiment, the motor mounting surface 102 is provided with a fluid outlet 1024 for connecting to the brake wheel cylinder. The bracket connecting surface 103 is provided with a brake master cylinder mounting hole 1031 that penetrates the valve body main body 10 and extends to the master cylinder base mounting surface 104, as well as a magnetic strip assembly mounting hole 1032 that is parallel to the centerline of the brake master cylinder mounting hole 1031. The valve body main body 10 also includes a leak hole mounting surface 105 and an oil pot mounting surface 106 that is arranged parallel to the leak hole mounting surface 105. The solenoid valve mounting surface 101 connects the leak hole mounting surface 105 and the oil pot mounting surface 106 and is arranged perpendicular to both. The leak hole mounting surface 105 is provided with a leak hole 1051 for connecting the plunger assembly to the anti-leakage groove 1015. The oil pot mounting surface 106 is also provided with an oil pot mounting hole 1061.

[0037] As will be understood, the oil tank is mounted on the oil tank mounting surface 106, supplying oil to the entire internal oil circuit 20. Three oil tank mounting holes 1061 are provided, corresponding to the three zones of the oil tank. These zones are interconnected, ensuring that the oil circuits in each zone perform their corresponding functions while also providing backup for each other, thereby improving the operational reliability of each zone. The provision of the magnetic strip assembly mounting hole 1032 ensures reliable and accurate acquisition of the master cylinder displacement signal while preventing the magnetic strip assembly from being corroded by brake fluid or adhering to free impurities within the brake fluid, leading to poor or even no sensing.

[0038] like Figure 2 As shown, in one embodiment, the central axis of the solenoid valve mounting hole 1011 is arranged parallel to the central axis of the pressure sensor mounting hole 1012, the central axis of the pedal position sensor mounting hole 1013, the central axis of the pedal simulator accommodating cavity 1014, the central axis of the leak-proof groove 1015 and the central axis of the weight-reducing groove 1016.

[0039] like Figure 1-5 As shown, in one embodiment, the center axis of the plunger assembly mounting hole 1021, the center axis of the rotor position sensor mounting hole 1022, the center axis of the motor pin mounting hole 1023, and the center axis of the liquid outlet 1024 are all arranged parallel to the center axis of the magnetic stripe assembly mounting hole 1032, and the center axis of the plunger assembly mounting hole 1021 is arranged perpendicular to the center axis of the brake master cylinder mounting hole 1031.

[0040] like Figure 1-5As shown, in one embodiment, the central axis of the leakage hole 1051 is arranged parallel to the central axis of the oil tank mounting hole 1061 and is respectively arranged perpendicular to the central axis of the anti-leakage groove 1015 and the central axis of the brake master cylinder mounting hole 1031.

[0041] As can be understood, compared to a coaxial arrangement, the center axis of leak-proof groove 1015 is perpendicular to the center axis of leak hole 1051. This effectively reduces backflow of absorbed brake fluid due to vibration and jolts while absorbing leaked brake fluid. This enhances the functionality of leak-proof groove 1015 and extends the service life of the plunger assembly. The centerline of third oil passage 203 intersects with the centerlines of first oil passage 201 and second oil passage 202, respectively. Compared to an eccentric arrangement, this facilitates subsequent leveling and polishing of protrusions and burrs at the intersection, significantly reducing the possibility of machining debris and burrs contaminating the brake fluid during subsequent assembly operation, potentially causing malfunctions.

[0042] like Figure 2 As shown, in one embodiment, the solenoid valve mounting hole 1011 includes a normally closed valve mounting hole 1011a, a normally open valve mounting hole 1011b, a test separator valve mounting hole 1011f, a loop isolation valve mounting hole 1011c, a plunger isolation valve mounting hole 1011d and a simulator isolation valve mounting hole 1011e.

[0043] It is understood that the normally closed valve and normally open valve are mounted on the solenoid valve mounting surface 101 and connected to the brake oil outlet via the internal oil circuit 20, providing an anti-lock braking function and improving braking safety. The circuit isolation valve and plunger isolation valve are mounted on the solenoid valve mounting surface 101 and control the master cylinder and plunger to access the normally closed valve and normally open valve circuits respectively through the internal oil circuit 20, fully decoupling the master cylinder and plunger, thus resolving the problem of the lack of a vacuum booster in the wire control brake system. The simulator isolation valve is mounted on the solenoid valve mounting surface 101 and controls the simulator to access the master cylinder circuit via the internal oil circuit 20, providing the driver with a pedaling reaction force and optimizing driving comfort. The test separator valve is mounted on the solenoid valve mounting surface 101 and detects the hydraulic braking force of the oil circuit via the internal oil circuit 20, providing a fault warning function and enhancing driving safety.

[0044] Internal oil circuit 20 is located within valve body 10 and includes a first oil circuit 201, a second oil circuit 202, and a third oil circuit 203 that connects the first and second oil circuits 201, 202, and the remaining components. The centerline of third oil circuit 203 perpendicularly intersects the centerlines of first and second oil circuits 201 and 202, respectively. First oil circuit 201 is coaxial with solenoid valve mounting hole 1011, while second oil circuit 202 is coaxial with pressure sensor mounting hole 1012.

[0045] Figure 3 include Figure 2 The AA and BB cross-sectional views show the specific structure of the internal oil circuit 20 inside the valve body 10, as shown in FIG. Figure 3 As shown, in one embodiment, the spacing between the center lines of the first oil circuit 201, the second oil circuit 202 and the third oil circuit 203 is greater than 5.2 mm; the spacing between the center lines of the first oil circuit 201, the second oil circuit 202 and the third oil circuit 203 and the corresponding parallel outer surfaces of the valve body main body 10 is greater than 2 mm; the spacing between the center of the intersection of the third oil circuit 203 with the first oil circuit 201 and the second oil circuit 202 and the corresponding parallel outer surfaces of the valve body main body 10 is greater than 5.1 mm.

[0046] It is understood that the spacing between the centerlines of the first, second, and third oil circuits 201, 202, and 203 is greater than 5.2 mm, which prevents the collapse of the oil circuit walls, which can cause adverse effects such as brake fluid crossflow, while ensuring the compactness of the oil circuit distribution structure. The spacing between the centerlines of the first, second, and third oil circuits 201, 202, and 203 and the corresponding parallel outer surfaces of the valve body 10 is greater than 2 mm, which prevents the plastic deformation of the inner walls of the oil circuits during subsequent riveting of steel balls into the oil ports from affecting the flatness of the corresponding outer surfaces of the valve body, thereby interfering with the subsequent assembly of other hydraulic structural components. The spacing between the center of the intersection of the third oil circuit 203 with the first and second oil circuits 201, 202 and the corresponding parallel outer surfaces of the valve body 10 is greater than 5.1 mm, which prevents the steel ball riveting from adversely affecting the fluidity of the brake fluid in the oil circuits.

[0047] In one embodiment, the oil inlet of the third oil passage 203 is disposed on a side surface of the third oil passage 203 and intersects with the bottom surface of the pedal simulator.

[0048] It can be understood that such a setting can ensure that when the brake master cylinder is actuated, the pedal simulator can stably intake oil and transmit hydraulic pressure. At the same time, it avoids the situation where the oil inlet is set higher than or perpendicular to the bottom surface of the pedal simulator, which causes uneven distribution of the brake fluid after intake, resulting in uneven force on the piston and thus unstable movement during the feeding action, causing noise, jamming and other faults.

[0049] The above description is merely a preferred embodiment of one or more embodiments of this specification and is not intended to limit one or more embodiments of this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included in the scope of protection of one or more embodiments of this specification.

Claims

1. A valve body, characterized in that: include: The valve body includes a solenoid valve mounting surface, a motor mounting surface arranged parallel to the solenoid valve mounting surface, a bracket connecting surface connecting the solenoid valve mounting surface and the motor mounting surface and arranged perpendicular to both, and a master cylinder base mounting surface arranged parallel to the bracket connecting surface; an internal oil circuit, disposed inside the valve body, the internal oil circuit including a first oil circuit, a second oil circuit, and a third oil circuit connecting the first oil circuit and the second oil circuit, wherein a center line of the third oil circuit intersects perpendicularly with a center line of the first oil circuit and a center line of the second oil circuit, respectively; and The solenoid valve mounting surface is provided with a solenoid valve mounting hole and a pressure sensor mounting hole. The first oil circuit is coaxially arranged with the solenoid valve mounting hole, and the second oil circuit is coaxially arranged with the pressure sensor mounting hole.

2. The valve body according to claim 1, characterized in that: The solenoid valve mounting surface is also provided with a pedal position sensor mounting hole, a pedal simulator accommodating cavity, a leak-proof groove, a weight-reducing groove, a plunger assembly mounting hole, a rotor position sensor mounting hole and a motor pin mounting hole. The plunger assembly mounting hole, the rotor position sensor mounting hole and the motor pin mounting hole all pass through the valve body from the solenoid valve mounting surface and extend to the motor mounting surface.

3. The valve body according to claim 1, characterized in that: An anti-error step 2.6 mm higher than the solenoid valve mounting surface is provided on the periphery of the pressure sensor mounting hole.

4. The valve body according to claim 2, characterized in that: The motor mounting surface is provided with a liquid outlet for connecting to the brake wheel cylinder, and the bracket connecting surface is provided with a brake master cylinder mounting hole that passes through the valve body and extends to the master cylinder base mounting surface, and a magnetic strip assembly mounting hole that is parallel to the center line of the brake master cylinder mounting hole; The valve body main body also includes a leakage hole mounting surface and an oil pot mounting surface arranged parallel to the leakage hole mounting surface. The solenoid valve mounting surface connects the leakage hole mounting surface and the oil pot mounting surface and is arranged perpendicular to both. The leakage hole mounting surface is provided with a leakage hole for connecting the plunger assembly and the anti-leakage groove, and the oil pot mounting surface is also provided with an oil pot mounting hole.

5. The valve body according to claim 2, characterized in that: The central axis of the solenoid valve mounting hole is parallel to the central axis of the pressure sensor mounting hole, the central axis of the pedal position sensor mounting hole, the central axis of the pedal simulator accommodating cavity, the central axis of the leakage-proof groove and the central axis of the weight-reducing groove.

6. The valve body according to claim 4, characterized in that: The central axis of the plunger assembly mounting hole, the central axis of the rotor position sensor mounting hole, the central axis of the motor pin mounting hole, and the central axis of the liquid outlet are all arranged parallel to the central axis of the magnetic stripe assembly mounting hole, and the central axis of the plunger assembly mounting hole is arranged perpendicular to the central axis of the brake master cylinder mounting hole.

7. The valve body according to claim 4, characterized in that: The central axis of the leakage hole is arranged parallel to the central axis of the oil pot mounting hole and is respectively arranged perpendicular to the central axis of the anti-leakage groove and the central axis of the brake master cylinder mounting hole.

8. The valve body according to claim 1, characterized in that: The distances between the center lines of the first oil circuit, the second oil circuit and the third oil circuit are all greater than 5.2 mm; the distances from the center lines of the first oil circuit, the second oil circuit and the third oil circuit to the corresponding parallel outer surfaces of the valve body are all greater than 2 mm; the distances from the center of the intersection of the third oil circuit with the first oil circuit and the second oil circuit to the corresponding parallel outer surfaces of the valve body are all greater than 5.1 mm.

9. The valve body according to claim 1, characterized in that: The solenoid valve mounting holes include a normally closed valve mounting hole, a normally open valve mounting hole, a test separator valve mounting hole, a loop isolation valve mounting hole, a plunger isolation valve mounting hole and a simulator isolation valve mounting hole.

10. A vehicle braking system operation control component, characterized in that: The valve body comprises the valve body described in any one of claims 1 to 9.

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