Automobile brake system electromagnetic valve with buffer structure

Abstract

The utility model relates to the technical field of automobile brake system solenoid valve, especially to a kind of automobile brake system solenoid valve with buffer structure, including valve body, both ends of valve body are connected with connecting pipe;One end bottom in valve body is equipped with the first baffle of inclined arrangement, the top of first baffle is equipped with second baffle, the other side of second baffle is connected with the third baffle of inclined arrangement, the other side of third baffle is connected with the fourth baffle of inclined arrangement, the top of fourth baffle is equipped with the fifth baffle of L type, the other side top of fifth baffle is connected with sixth baffle.The utility model is equipped with first compression spring and second compression spring on connecting shaft, respectively act on sealing plate and moving iron core, effectively buffer the impact force in its movement process, avoid the collision damage caused by electromagnetic force instantaneous action, prolong the service life of solenoid valve.

Description

Technical Field

[0001] This utility model relates to the field of automotive braking system solenoid valve technology, and in particular to an automotive braking system solenoid valve with a buffer structure. Background Technology

[0002] The automotive braking system refers to the specialized braking mechanism installed on a vehicle to ensure safe driving and improve the vehicle's average speed. Among these mechanisms, the solenoid valve, as the actuator of the electronic control system, enables rapid response and precise adjustment of braking pressure. In other words, the solenoid valve controls the release and recovery of brake fluid pressure to prevent wheel lock-up and optimize braking distance.

[0003] Existing solenoid valves operate by using the magnetism of an electromagnet to control the movement of an iron core, thus opening and closing the valve. However, during the movement of the iron core, the magnetic force is often triggered suddenly and instantaneously, causing the iron core to easily collide with the valve body. These collisions inevitably affect both the valve body and the iron core. Therefore, we propose a solenoid valve for automotive braking systems with a buffer structure. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a solenoid valve for an automotive braking system with a buffer structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a solenoid valve for an automotive braking system with a buffer structure, comprising a valve body, with connecting pipes connected to both ends of the valve body; An inclined first guide plate is installed at the bottom of one end of the valve body. A second guide plate is installed on top of the first guide plate. An inclined third guide plate is connected to the other side of the second guide plate. An inclined fourth guide plate is connected to the other side of the third guide plate. An L-shaped fifth guide plate is installed on top of the fourth guide plate. A sixth guide plate is connected to the top of the other side of the fifth guide plate. An L-shaped seventh guide plate is installed on the other side of the sixth guide plate. The other side of the seventh guide plate is fixed to the inner wall of the valve body. An inclined eighth guide plate is provided at the end of the valve body near the first guide plate. The end of the eighth guide plate is fixed to the inner wall of the valve body. A gap is left between the top of the eighth guide plate and the fifth guide plate, and a gap is left between the bottom of the eighth guide plate and the valve body. The ends of the first, second, third, fourth, fifth, sixth, and seventh guide plates are all fixed to the inner wall of the valve body. A first through hole is provided in the middle of the second guide plate, and a second through hole is provided in the middle of the sixth guide plate. A sealing plate is provided between the second guide plate and the fifth guide plate, and the sealing plate corresponds to the first through hole. A connecting shaft is vertically installed on the top of the sealing plate. The top of the connecting shaft slides through the fifth guide plate and passes through the second through hole. The top of the connecting shaft also slides through the top of the valve body and is placed in the sleeve. The other end of the sleeve is fixed on the fixed iron core. The fixed iron core is set on the chassis. The chassis is fixed on the top of the valve body. A coil is set in the chassis, and the connecting shaft is placed in the coil. A moving iron core is fixed on the connecting shaft. The moving iron core slides through the top of the valve body, and the bottom of the moving iron core corresponds to the second through hole. A second compression spring is sleeved on the sleeve. One end of the second compression spring is fixed on the moving iron core, and the other end of the second compression spring is fixed on the fixed iron core. A first compression spring is sleeved on the bottom of the connecting shaft. One end of the first compression spring is fixed on the sealing plate, and the other end of the first compression spring is fixed on the fifth guide plate.

[0006] Preferably, a control box is mounted on the top of the chassis via a bracket, and a controller is installed inside the control box. The controller is connected to the coil via wires.

[0007] Preferably, a first limiting strip is provided along the bottom edge of the sealing plate, and the first limiting strip is fixed on the top of the second guide plate.

[0008] Preferably, a second limiting strip is provided along the bottom edge of the moving iron core, and the second limiting strip is fixed on the top of the sixth guide plate.

[0009] Preferably, an elastic rubber plate is installed along the edge of the sealing plate, and the outer wall of the rubber plate is fixed to the corresponding eighth guide plate, fourth guide plate, and inner wall of the valve body.

[0010] Preferably, a limiting tube is fitted onto the bottom of the connecting shaft, and the top of the limiting tube is fixed to the bottom of the fifth guide plate.

[0011] Preferably, a connecting flange is installed on the end of the connecting pipe away from the valve body.

[0012] The design scheme proposed in this utility model has the following beneficial effects in application: 1. This utility model provides a first compression spring and a second compression spring on the connecting shaft, which act on the sealing plate and the moving iron core respectively, effectively buffering the impact force during their movement, avoiding collision damage caused by the instantaneous action of electromagnetic force, and extending the service life of the solenoid valve.

[0013] 2. This utility model forms a reasonable hydraulic oil flow path by setting multiple inclined and L-shaped guide plates, realizing the diversion and guidance of hydraulic oil, improving the stability and response speed of fluid control, and enhancing the sealing performance and structural strength of the valve body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a cross-sectional front view of the present invention.

[0015] In the diagram: 1. Valve body; 2. Connecting pipe; 3. Connecting flange; 4. Chassis; 5. Control box; 6. Bracket; 7. First guide plate; 8. Second guide plate; 9. Third guide plate; 10. Fourth guide plate; 11. Fifth guide plate; 12. Sixth guide plate; 13. Seventh guide plate; 14. Eighth guide plate; 15. First through hole; 16. First limiting strip; 17. Second through hole; 18. Second limiting strip; 19. Sealing plate; 20. Rubber plate; 21. Connecting shaft; 22. Moving iron core; 23. Sleeve; 24. Fixed iron core; 25. Coil; 26. Limiting pipe; 27. First compression spring; 28. Second compression spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Example Reference Figures 1-4 A solenoid valve for an automotive braking system with a buffer structure includes a valve body 1, with connecting pipes 2 connected to both ends of the valve body 1. A connecting flange 3 is installed on the end of the connecting pipe 2 away from the valve body 1 for connecting the two ends of the valve body 1 to the hydraulic components of the automotive braking system.

[0018] A first guide plate 7 is installed at one bottom of the valve body 1 at an angle. A second guide plate 8 is installed on top of the first guide plate 7. A third guide plate 9 is connected to the other side of the second guide plate 8 at an angle. A fourth guide plate 10 is connected to the other side of the third guide plate 9 at an angle. An L-shaped fifth guide plate 11 is installed on top of the fourth guide plate 10. A sixth guide plate 12 is connected to the top of the other side of the fifth guide plate 11. An L-shaped seventh guide plate 13 is installed on the other side of the sixth guide plate 12. The other side of the seventh guide plate 13 is fixed to the inner wall of the valve body 1. An eighth guide plate 14 is provided at one end of the valve body 1 near the first guide plate 7 at an angle. The end of the eighth guide plate 14 is fixed to the inner wall of the valve body 1, and there is a gap between the top of the eighth guide plate 14 and the fifth guide plate 11, and a gap between the bottom of the eighth guide plate 14 and the valve body 1. The ends of the first guide plate 7, the second guide plate 8, the third guide plate 9, the fourth guide plate 10, the fifth guide plate 11, the sixth guide plate 12, and the seventh guide plate 13 are all fixed to the inner wall of the valve body 1. When the hydraulic oil flows into the valve body 1 from the connecting pipe 2 near the eighth guide plate 14, the hydraulic oil will be split from the upper and lower sides of the second guide plate 8, with one part flowing to the sixth guide plate 12 and the other part flowing to the second guide plate 8.

[0019] Specifically, the valve body 1 is sealed and separated by the action of the first guide plate 7, the second guide plate 8, the third guide plate 9, the fourth guide plate 10, the fifth guide plate 11, the sixth guide plate 12, and the seventh guide plate 13.

[0020] A first through hole 15 is provided in the middle of the second guide plate 8, and a second through hole 17 is provided in the middle of the sixth guide plate 12. The hydraulic cylinder can pass through the through hole and flow out from another connecting pipe 2. A sealing plate 19 is provided between the second guide plate 8 and the fifth guide plate 11. The sealing plate 19 corresponds to the first through hole 15. A connecting shaft 21 is vertically installed on the top of the sealing plate 19. The top of the connecting shaft 21 slides through the fifth guide plate 11 and passes through the second through hole 17. The top of the connecting shaft 21 also slides through the top of the valve body 1 and is placed in the sleeve 23. The other end of the sleeve 23 is fixed on the fixed iron core 24. The fixed iron core 24 is set on the housing 4. The housing 4 is fixed on the top of the valve body 1, so that the sealing plate 19 can be raised and lowered above the first through hole 15 to achieve the blocking or opening operation of the first through hole 15.

[0021] A coil 25 is installed inside the housing 4, and a connecting shaft 21 is placed inside the coil 25. A moving iron core 22 is fixed on the connecting shaft 21. The moving iron core 22 slides through the top of the valve body 1, and the bottom of the moving iron core 22 corresponds to the second through hole 17. The moving iron core 22 provides power for its movement. Under the lifting and lowering movement of the moving iron core 22, the second through hole 17 can be blocked or opened. A second compression spring 28 is sleeved on the sleeve 23. One end of the second compression spring 28 is fixed on the moving iron core 22, and the other end of the second compression spring 28 is fixed on the fixed iron core 24. A first compression spring 27 is sleeved on the bottom of the connecting shaft 21. One end of the first compression spring 27 is fixed on the sealing plate 19, and the other end of the first compression spring 27 is fixed on the fifth guide plate 11.

[0022] Specifically, after the coil 25 is energized, magnetic field lines are formed within the coil 25, thereby applying a vertical force to the moving iron core 22. When the moving iron core 22 descends and blocks the second through hole 17, the sealing plate 19 can be pushed down by the transmission of the connecting shaft 21, thus blocking the first through hole 15. This makes the guide plate that isolates the valve body 1 a solid structure, preventing hydraulic oil from passing through the valve body 1. During the movement of the sealing plate 19 and the moving iron core 22, two compression springs... The spring provides elastic force to the sealing plate 19 and the moving iron core 22 respectively, thereby providing a buffering effect on the contact between the sealing plate 19 and the second guide plate 8, and the contact between the moving iron core 22 and the sixth guide plate 12, thus protecting the sealing plate 19, the moving iron core 22, and the guide plates. When the coil 25 provides an upward magnetic force to the moving iron core 22, the force of the compressed spring after stretching will also act on the sealing plate 19 and the moving iron core 22 to rise and open the through hole, allowing the hydraulic oil to pass through the valve body 1 stably.

[0023] Furthermore, a first limiting strip 16 is provided along the bottom edge of the sealing plate 19. The first limiting strip 16 is fixed on the top of the second guide plate 8 to improve the sealing performance of the sealing plate 19 on the second guide plate 8 in sealing the first through hole 15. A second limiting strip 18 is provided along the bottom edge of the moving iron core 22. The second limiting strip 18 is fixed on the top of the sixth guide plate 12 to improve the sealing performance of the moving iron core 22 on the sixth guide plate 12 in sealing the second through hole 17.

[0024] Specifically, a control box 5 is mounted on the top of the chassis 4 via a bracket 6. The control box 5 contains a controller, which is connected to the coil 25 via wires. In actual use, the controller can be one of the following: a control host, a control motherboard, or a PLC logic controller. In addition, an electrical interface is also provided on the control box 5, which is connected to the controller via wires to supply power to the coil 25.

[0025] It should be noted that an elastic rubber plate 20 is installed along the edge of the sealing plate 19. The outer wall of the rubber plate 20 is fixed to the corresponding eighth guide plate 14, fourth guide plate 10, and inner wall of valve body 1, sealing the space above the second guide plate 8 and ensuring that the hydraulic oil channels on both sides above the eighth guide plate 14 do not interfere with each other.

[0026] Furthermore, a limiting tube 26 is fitted on the bottom of the connecting shaft 21, and the top of the limiting tube 26 is fixed to the bottom of the fifth guide plate 11 to limit the rising height of the sealing plate 19.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solenoid valve for an automotive braking system with a buffer structure, characterized in that: Includes a valve body (1), with connecting pipes (2) connected to both ends of the valve body (1); A first guide plate (7) is installed at one bottom of the valve body (1) at an incline. A second guide plate (8) is installed on top of the first guide plate (7). A third guide plate (9) is connected to the other side of the second guide plate (8). A fourth guide plate (10) is connected to the other side of the third guide plate (9). An L-shaped fifth guide plate (11) is installed on top of the fourth guide plate (10). A sixth guide plate (12) is connected to the top of the other side of the fifth guide plate (11). An L-shaped seventh guide plate (13) is installed on the other side of the sixth guide plate (12). The other side of the seventh guide plate (13) is fixed to the inner wall of the valve body (1). An eighth guide plate (14) is provided at one end of the valve body (1) near the first guide plate (7) with an inclination. The end of the eighth guide plate (14) is fixed to the inner wall of the valve body (1), and there is a gap between the top of the eighth guide plate (14) and the fifth guide plate (11), and a gap between the bottom of the eighth guide plate (14) and the valve body (1). The ends of the first guide plate (7), the second guide plate (8), the third guide plate (9), the fourth guide plate (10), the fifth guide plate (11), the sixth guide plate (12), and the seventh guide plate (13) are all fixed to the inner wall of the valve body (1). A first through hole (15) is provided in the middle of the second guide plate (8), and a second through hole (17) is provided in the middle of the sixth guide plate (12). A sealing plate (19) is provided between the second guide plate (8) and the fifth guide plate (11). The sealing plate (19) corresponds to the first through hole (15). A connecting shaft (21) is vertically installed on the top of the sealing plate (19). The top of the connecting shaft (21) slides through the fifth guide plate (11) and passes through the second through hole (17). The top of the connecting shaft (21) also slides through the top of the valve body (1) and is placed in the sleeve (23). The other end of the sleeve (23) is fixed on the fixed iron core (24). The fixed iron core (24) is set on the chassis (4). The chassis (4) is fixed on the top of the valve body (1). A coil (25) is set in the chassis (4). The connecting shaft (21) is placed in the coil (25). A movable iron core (22) is fixed on the connecting shaft (21). The movable iron core (22) slides through the top of the valve body (1), and the bottom of the movable iron core (22) corresponds to the second through hole (17). A second compression spring (28) is sleeved on the sleeve (23). One end of the second compression spring (28) is fixed on the movable iron core (22), and the other end of the second compression spring (28) is fixed on the fixed iron core (24). A first compression spring (27) is sleeved on the bottom of the connecting shaft (21). One end of the first compression spring (27) is fixed on the sealing plate (19), and the other end of the first compression spring (27) is fixed on the fifth guide plate (11).

2. The solenoid valve for an automotive braking system with a buffer structure according to claim 1, characterized in that: A control box (5) is mounted on the top of the chassis (4) via a bracket (6). A controller is installed inside the control box (5), and the controller is connected to the coil (25) via a wire.

3. The solenoid valve for an automotive braking system with a buffer structure according to claim 1, characterized in that: A first limiting strip (16) is provided along the bottom edge of the sealing plate (19), and the first limiting strip (16) is fixed on the top of the second guide plate (8).

4. The solenoid valve for an automotive braking system with a buffer structure according to claim 1, characterized in that: A second limiting strip (18) is provided at the bottom edge of the moving iron core (22), and the second limiting strip (18) is fixed on the top of the sixth guide plate (12).

5. The solenoid valve for an automotive braking system with a buffer structure according to claim 3, characterized in that: An elastic rubber plate (20) is installed along the edge of the sealing plate (19), and the outer wall of the rubber plate (20) is fixed to the inner wall of the corresponding eighth guide plate (14), fourth guide plate (10), and valve body (1).

6. The solenoid valve for an automotive braking system with a buffer structure according to claim 1, characterized in that: A limiting tube (26) is fitted on the bottom of the connecting shaft (21), and the top of the limiting tube (26) is fixed on the bottom of the fifth guide plate (11).

7. The solenoid valve for an automotive braking system with a buffer structure according to claim 1, characterized in that: A connecting flange (3) is installed on the end of the connecting pipe (2) away from the valve body (1).

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