Pressure maintaining electromagnetic valve for vehicle electric control system

Abstract

The utility model discloses a pressure maintaining solenoid valve for a vehicle electric control system, which comprises a pressure maintaining solenoid valve, a water outlet pipe is fixedly arranged at the lower part of the outer surface of the left side of the pressure maintaining solenoid valve, a water inlet pipe is fixedly arranged at the lower part of the outer surface of the right side of the pressure maintaining solenoid valve, and an internal thread ring is arranged at the right end of the inner cavity of the water inlet pipe; a junction box is fixedly installed on the upper portion of the outer surface of the right side of the water inlet pipe, a filtering assembly is installed in the water inlet pipe, and the filtering assembly comprises a fine filtering cylinder, a primary filtering cylinder, a fixing ring, a second limiting ring, a positioning hole, a positioning pin and a rubber ring. According to the pressure maintaining electromagnetic valve for the vehicle electronic control system, the filtering assembly is arranged, impurities are conveniently filtered out through the primary filtering cylinder and the fine filtering cylinder, normal work of the electromagnetic valve is protected, the sealing performance of an external pipeline of a water inlet pipe is improved through the rubber ring, the limiting effect is achieved through the positioning pin and the positioning hole, and the pressure maintaining electromagnetic valve is convenient to use. The stability of the rubber ring is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle ABS pump accessories, specifically a pressure-holding solenoid valve for vehicle electronic control systems. Background Technology

[0002] The main function of the pressure-holding solenoid valve in the vehicle's ABS pump is to maintain stable braking pressure. When pressure holding is required, the solenoid valve will be in the middle position, closing all channels and cutting off the power to the electric hydraulic pump, causing it to stop working. In this way, the braking pressure in the brake wheel cylinder can maintain its current state and will not change due to external factors. This pressure-holding function is crucial for ensuring the vehicle's driving stability under emergency braking or complex road conditions.

[0003] In automotive ABS (Anti-lock Braking System), solenoid valves are key control components; they use electromagnetic force to control the movement of the valve core, thereby managing the flow of brake fluid. When the solenoid valve is energized, the electromagnetic force generated by the solenoid coil lifts the closing element from the valve seat, opening the valve and allowing brake fluid to flow. When the power is off, the electromagnetic force disappears, and the spring presses the closing element back onto the valve seat, closing the valve and preventing brake fluid from flowing.

[0004] The pressure-holding solenoid valve in the existing technology lacks a filtering structure. There may be tiny impurities or particles in the braking system. If these impurities enter the solenoid valve, they may block the valve port, affect the movement of the valve core, or damage the sealing surface, thereby causing the solenoid valve to malfunction or fail.

[0005] Therefore, we propose a pressure-holding solenoid valve for vehicle electronic control systems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a pressure-holding solenoid valve for vehicle electronic control systems. It features an advantage such as the ability to effectively filter out impurities and protect the normal operation of the solenoid valve when a filter screen is installed, thus effectively solving the problems in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pressure-holding solenoid valve for a vehicle electronic control system, comprising a pressure-holding solenoid valve, an outlet pipe fixedly installed on the lower part of the left outer surface of the pressure-holding solenoid valve, an inlet pipe fixedly installed on the lower part of the right outer surface of the pressure-holding solenoid valve, an internal threaded ring provided at the right end of the inner cavity of the inlet pipe, a junction box fixedly installed on the upper part of the right outer surface of the inlet pipe, a filter assembly installed inside the inlet pipe, the filter assembly comprising a fine filter cartridge, a primary filter cartridge, a fixing ring, a second limiting ring, a positioning hole, a positioning pin and a rubber ring, and a first limiting ring fixedly installed at the end of the inner cavity of the inlet pipe near the first limiting ring.

[0010] Preferably, both the fine filter cartridge and the primary filter cartridge are fixedly installed on the left outer surface of the fixing ring, and the primary filter cartridge is located inside the fine filter cartridge.

[0011] Preferably, the second limiting ring is fixedly installed on the outer wall of the fixed ring, and the positioning hole is opened on the right outer surface of the second limiting ring.

[0012] Preferably, the positioning pin is fixedly installed on the left outer surface of the rubber ring, and the rubber ring is located on the right outer surface of the second limiting ring.

[0013] Preferably, the outer wall of the positioning pin is inserted into the positioning hole.

[0014] Preferably, after the filter assembly is installed inside the water inlet pipe, the second limiting ring is located on the right outer surface of the first limiting ring.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a pressure-holding solenoid valve for a vehicle electronic control system, which has the following advantages:

[0017] 1. The pressure-holding solenoid valve for a vehicle electronic control system is equipped with a filter assembly, which, through a pre-filter and a fine filter, facilitates the filtration of impurities and protects the normal operation of the solenoid valve.

[0018] 2. The pressure-holding solenoid valve for the vehicle electronic control system increases the sealing of the external pipe of the water inlet pipe through the setting of the rubber ring, and the setting of the positioning pin and positioning hole plays a limiting role, thereby improving the stability of the rubber ring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a pressure-holding solenoid valve for a vehicle electronic control system according to the present invention.

[0020] Figure 2 This is a side cross-sectional view of the water inlet pipe in a pressure-holding solenoid valve for a vehicle electronic control system according to this utility model.

[0021] Figure 3 This is a side cross-sectional view of the filter component in a pressure-holding solenoid valve for a vehicle electronic control system according to this utility model.

[0022] Figure 4 This utility model relates to a pressure-holding solenoid valve for a vehicle electronic control system. Figure 3 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Pressure-holding solenoid valve; 2. Junction box; 3. Outlet pipe; 4. Inlet pipe; 5. Filter assembly; 6. First limit ring; 7. Internal threaded ring; 8. Fine filter cartridge; 9. Primary filter cartridge; 10. Fixing ring; 11. Second limit ring; 12. Positioning hole; 13. Positioning pin; 14. Rubber ring. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] This embodiment is a pressure-holding solenoid valve for a vehicle electronic control system.

[0026] like Figure 1-4 As shown, the device includes a pressure-holding solenoid valve 1. A water outlet pipe 3 is fixedly installed on the lower part of the left outer surface of the pressure-holding solenoid valve 1, and a water inlet pipe 4 is fixedly installed on the lower part of the right outer surface of the pressure-holding solenoid valve 1. An internal threaded ring 7 is provided at the right end of the inner cavity of the water inlet pipe 4. A junction box 2 is fixedly installed on the upper part of the right outer surface of the water inlet pipe 4. A filter assembly 5 is installed inside the water inlet pipe 4. The filter assembly 5 includes a fine filter cartridge 8, a primary filter cartridge 9, a fixing ring 10, a second limiting ring 11, a positioning hole 12, a positioning pin 13, and a rubber ring 14. A first limiting ring 6 is fixedly installed at the end of the inner cavity of the water inlet pipe 4 near the first limiting ring 6.

[0027] Both the fine filter cartridge 8 and the primary filter cartridge 9 are fixedly installed on the left outer surface of the fixing ring 10, with the primary filter cartridge 9 located inside the fine filter cartridge 8; the second limiting ring 11 is fixedly installed on the outer wall of the fixing ring 10, and the positioning hole 12 is opened on the right outer surface of the second limiting ring 11; the positioning pin 13 is fixedly installed on the left outer surface of the rubber ring 14, with the rubber ring 14 located on the right outer surface of the second limiting ring 11; the outer wall of the positioning pin 13 and the positioning hole 12 are inserted into each other; after the filter assembly 5 is installed inside the water inlet pipe 4, the second limiting ring 11 is limited to the right outer surface of the first limiting ring 6.

[0028] It should be noted that this utility model is a pressure-holding solenoid valve for a vehicle electronic control system. The pressure-holding solenoid valve 1, junction box 2, water outlet pipe 3, water inlet pipe 4, and internal threaded ring 7 described in this article are all prior art and can be effectively known to those skilled in the art. Specific details will not be elaborated further. The filter assembly 5 is installed inside the water inlet pipe 4. During installation, the filter assembly 5 is inserted into the water inlet pipe 4, and the first limiting ring 6 limits the second limiting ring 11. A rubber ring 14 is installed on one side of the outer surface of the second limiting ring 11. A positioning pin 13 is inserted into the positioning hole 12. The positioning hole 12 and positioning pin 13 improve the stability of the rubber ring 14 after installation. After installing the filter assembly 5, the external pipe is connected to the position of the internal threaded ring 7 in the water inlet pipe 4. The rubber ring 14 is compressed, improving the sealing performance. The primary filter cartridge 9 and the fine filter cartridge 8 facilitate the removal of impurities, ensuring the normal operation of the pressure-holding solenoid valve 1.

[0029] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 limitations, 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 said element.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pressure-holding solenoid valve for a vehicle electronic control system, comprising a pressure-holding solenoid valve (1), wherein a water outlet pipe (3) is fixedly installed on the lower part of the left outer surface of the pressure-holding solenoid valve (1), and a water inlet pipe (4) is fixedly installed on the lower part of the right outer surface of the pressure-holding solenoid valve (1), wherein an internal threaded ring (7) is provided at the right end of the inner cavity of the water inlet pipe (4), and a junction box (2) is fixedly installed on the upper part of the right outer surface of the water inlet pipe (4), characterized in that: The inlet pipe (4) is equipped with a filter assembly (5), which includes a fine filter cartridge (8), a primary filter cartridge (9), a fixing ring (10), a second limiting ring (11), a positioning hole (12), a positioning pin (13), and a rubber ring (14). The first limiting ring (6) is fixedly installed at one end of the inner cavity of the inlet pipe (4) near the first limiting ring (6).

2. The pressure-holding solenoid valve for a vehicle electronic control system according to claim 1, characterized in that: Both the fine filter cartridge (8) and the primary filter cartridge (9) are fixedly installed on the left outer surface of the fixing ring (10), and the primary filter cartridge (9) is located inside the fine filter cartridge (8).

3. The pressure-holding solenoid valve for a vehicle electronic control system according to claim 2, characterized in that: The second limiting ring (11) is fixedly installed on the outer wall of the fixed ring (10), and the positioning hole (12) is opened on the right outer surface of the second limiting ring (11).

4. A pressure-holding solenoid valve for a vehicle electronic control system according to claim 3, characterized in that: The positioning pin (13) is fixedly installed on the left outer surface of the rubber ring (14), and the rubber ring (14) is located on the right outer surface of the second limiting ring (11).

5. A pressure-holding solenoid valve for a vehicle electronic control system according to claim 4, characterized in that: The outer wall of the positioning pin (13) is inserted into the positioning hole (12).

6. A pressure-holding solenoid valve for a vehicle electronic control system according to claim 5, characterized in that: After the filter assembly (5) is installed inside the water inlet pipe (4), the second limiting ring (11) is limited to the right outer surface of the first limiting ring (6).

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