Passenger car ECAS electromagnetic valve

Abstract

According to the passenger car ECAS electromagnetic valve, the static iron core and the air valve are welded to the two ends of the connecting kit, and the movable iron core moves between the air valve and the static iron core, so that the high-pressure resistance of the static iron core and the air valve can be improved, and the structural stability between the air valve and the static iron core under the high-pressure environment is ensured; a spring is arranged between the static iron core and the movable iron core, the two opposite ends of the static iron core and the movable iron core are concave inwards to form spring positioning grooves, the two ends of the spring extend into the corresponding spring positioning grooves to be connected with the movable iron core and the static iron core, and when the coil is powered on to generate magnetic force, the response speed of the movable iron core can be increased through the arrangement of the spring.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valves, in particular to an ECAS solenoid valve for a passenger car. Background Art

[0002] The traditional air suspension control mode uses a mechanical height valve, that is, the height valve is opened to adjust the inflation and deflation of the airbag, so as to maintain a constant driving height of the vehicle. With the promotion of system application and the development of vehicle control technology, electronic control gradually replaces the traditional mechanical control. The electronic control system not only improves the comfort and sensitivity of operation, but also can add many auxiliary functions. The existing passenger car ECAS solenoid valve and the static iron core are prone to swing, and the stability is not high. Summary of the invention

[0003] In view of this, the utility model provides an ECAS solenoid valve for a passenger car.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A passenger car ECAS solenoid valve comprises a valve body, a solenoid valve installation cavity is formed in the valve body, a solenoid valve assembly and a connection kit are arranged in the solenoid valve installation cavity, the solenoid valve assembly comprises a static iron core, a moving iron core, a valve and a coil, a connecting groove is formed in the connection kit, the static iron core is welded and fixed to the top groove wall of the connecting groove, one end of the valve is welded and fixed to the bottom groove wall of the connecting groove, and the moving iron core is arranged between the static iron core and the valve.

[0006] Preferably, the solenoid valve mounting cavity has an upper mounting portion and a lower mounting portion, a limit step structure is provided between the upper mounting portion and the lower mounting portion, the connecting kit has a tubular connecting portion and a limit support portion, the connecting groove is a longitudinal structure opened on the tubular connecting portion, the limit support portion is arranged on a side of the tubular connecting portion close to the valve, the limit support portion is a disc structure, the limit support portion is connected to the limit step structure, and the coil is sleeved on the tubular connecting portion.

[0007] Preferably, the limit step structure includes a primary step and a secondary step, the limit support portion is fixed on the primary step, an O-ring is sleeved on one side of the tubular connecting portion close to the valve, and the secondary step abuts against the O-ring.

[0008] Preferably, an air path channel connected to the solenoid valve installation cavity is provided in the valve body, and the air path channel includes a valve body air storage channel, an air pressure detection channel and a gas inlet and outlet that are interconnected.

[0009] Preferably, an air pressure sensor is provided in the air pressure detection channel, and the air pressure sensor detects the pressure in the air pressure detection channel. A sealing assembly is provided in the valve body air storage channel, and the valve body air storage channel has an opening connected to the outside of the valve body. The bottom end of the sealing assembly extends into the opening and is sealed with the inner wall of the valve body air storage channel.

[0010] Preferably, the sealing assembly includes a sealing plug and a sealing ring, one end of the sealing plug extends into the air storage channel of the valve body through an opening, the sealing ring is sleeved on the end of the sealing plug extending into the air storage channel of the valve body, and the two ends of the sealing ring are respectively sealed with the sealing plug and the inner wall of the valve body air storage channel.

[0011] The beneficial effect of the utility model is that by welding the static iron core and the valve at the two ends of the connecting kit, and the moving iron core moves between the valve and the static iron core, such a structural setting can improve the high-pressure resistance of the static iron core and the valve, and ensure the structural stability between the valve and the static iron core under high-pressure environment. In this design, a spring is arranged between the static iron core and the moving iron core, and the opposite ends of the static iron core and the moving iron core are both concave to form a spring positioning groove, and the two ends of the spring extend into the corresponding spring positioning grooves to be connected with the moving iron core and the static iron core. When the coil is energized to generate magnetic force, the setting of the spring can improve the response speed of the moving iron core. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Attached Figure 2 For attachment Figure 1 A in the enlarged view;

[0015] Attached Figure 3 This is a cross-sectional view from another angle of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0018] The utility model provides the following technical solutions:

[0019] As attached Figure 1-3 As shown, the utility model discloses an ECAS solenoid valve for a passenger car, comprising a valve body 1, a solenoid valve installation cavity 2 is formed in the valve body 1, a solenoid valve assembly 3 and a connecting kit 4 are arranged in the solenoid valve installation cavity 2, the solenoid valve assembly 3 comprises a static iron core 5, a moving iron core 6, a valve 7 and a coil 8, a connecting through groove 9 is formed in the connecting kit 4, the static iron core 5 is welded and fixed to the top groove wall of the connecting through groove 9, one end of the valve 7 is welded and fixed to the bottom groove wall of the connecting through groove 9, and the moving iron core 6 is arranged between the static iron core 5 and the valve 7. Specifically, in the present design, by welding the static iron core 5 and the valve 7 at the two ends of the connecting kit 4, and the moving iron core 6 moves between the valve 7 and the static iron core 5, such a structural setting can improve the high-pressure resistance of the static iron core 5 and the valve 7, and ensure the structural stability between the valve 7 and the static iron core 5 under a high-pressure environment. In the present design, a spring is arranged between the static iron core 5 and the moving iron core 6, and the opposite ends of the static iron core 5 and the moving iron core 6 are both concave to form a spring positioning groove, and the two ends of the spring extend into the corresponding spring positioning grooves to be connected with the moving iron core 6 and the static iron core 5. When the coil 8 is energized to generate magnetic force, the setting of the spring can improve the response speed of the moving iron core 6.

[0020] Further, the solenoid valve installation cavity 2 has an upper installation portion 10 and a lower installation portion 11, a limit step structure 12 is provided between the upper installation portion 10 and the lower installation portion 11, the connection kit 4 has a tubular connection portion 13 and a limit support portion 14, the connection slot 9 is longitudinally arranged on the tubular connection portion 13, the limit support portion 14 is arranged on the side of the tubular connection portion 13 close to the valve 7, the limit support portion 14 is arranged in a disc structure, the limit support portion 14 is connected to the limit step structure 12, and the coil 8 is sleeved on the tubular connection portion 13. Specifically, in this embodiment, through the cooperation of the limit step structure 12 and the limit support portion 14, the position of the connection kit 4 in the solenoid valve installation cavity 2 is more stable, thereby ensuring the stable operation of the solenoid valve. The provision of the tubular connection portion 13 facilitates the sleeve and installation of the coil 8, thereby improving the assembly efficiency of the solenoid valve.

[0021] Furthermore, the position-limiting step structure 12 includes a primary step 15 and a secondary step 16, the position-limiting support portion 14 is fixed on the primary step 15, an O-ring 17 is sleeved on the side of the tubular connecting portion 13 close to the valve 7, and the secondary step 16 abuts against the O-ring 17. Such a design prevents gas leakage from the gap between the tubular connecting portion 13 and the electromagnetic valve installation cavity 2 through the sealing effect of the O-ring 17, thereby improving the sealing performance of the electromagnetic valve. At the same time, the pressing effect of the secondary step 16 on the O-ring 17 enables the O-ring 17 to better exert its sealing effect.

[0022] Furthermore, an air passage 18 communicating with the solenoid valve installation cavity 2 is provided in the valve body 1 , and the air passage 18 includes a valve body air storage passage 19 , an air pressure detection passage 20 , and a gas inlet and outlet 21 that are interconnected.

[0023] Furthermore, an air pressure sensor 22 is provided in the air pressure detection channel 20, and the air pressure sensor 22 detects the pressure in the air pressure detection channel 20. A sealing component is provided in the valve body air storage channel 19, and the valve body air storage channel 19 has an opening 23 connected to the outside of the valve body 1. The bottom end of the sealing component extends into the opening 23 and is sealed with the inner wall of the valve body air storage channel 19. The air pressure sensor 22 is used to detect the gas pressure in the air pressure detection channel 20 in real time, and transmit the detected pressure value to the control system. The control system controls the solenoid valve accordingly according to the received pressure value, thereby realizing precise control of the gas pressure. The valve body air storage channel 19 is used to store gas and is connected to external equipment through the gas inlet and outlet 21. The setting of the sealing component ensures the sealing of the valve body air storage channel 19, prevents gas leakage from the opening 23, and ensures the stability and accuracy of the gas pressure.

[0024] Furthermore, the sealing assembly includes a sealing plug 24 and a sealing ring 25, one end of the sealing plug 24 extends into the valve body gas storage channel 19 through the opening 23, and the sealing ring 25 is sleeved on the end of the sealing plug 24 extending into the valve body gas storage channel 19, and the two ends of the sealing ring 25 are respectively sealed with the sealing plug 24 and the inner wall of the valve body gas storage channel 19. Such a design ensures the sealing performance of the valve body gas storage channel 19 through the double sealing effect of the sealing plug 24 and the sealing ring 25, effectively prevents gas leakage, and improves the stability and accuracy of the gas pressure. At the same time, the sealing plug 24 extends into the valve body gas storage channel 19 through the opening 23, which facilitates the sealing and detection of the gas in the valve body gas storage channel 19.

[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A passenger car ECAS solenoid valve, comprising a valve body, wherein a solenoid valve installation cavity is formed in the valve body, and characterized in that: An electromagnetic valve assembly and a connecting kit are arranged in the electromagnetic valve installation cavity, and the electromagnetic valve assembly includes a static iron core, a moving iron core, a valve and a coil. A connecting groove is formed in the connecting kit, the static iron core is welded and fixed to the top groove wall of the connecting groove, one end of the valve is welded and fixed to the bottom groove wall of the connecting groove, and the moving iron core is arranged between the static iron core and the valve.

2. The ECAS solenoid valve for a passenger car according to claim 1, characterized in that: The solenoid valve mounting cavity has an upper mounting portion and a lower mounting portion, a limit step structure is provided between the upper mounting portion and the lower mounting portion, the connecting kit has a tubular connecting portion and a limit support portion, the connecting groove is a longitudinal structure opened on the tubular connecting portion, the limit support portion is arranged on a side of the tubular connecting portion close to the valve, the limit support portion is a disc structure, the limit support portion is connected to the limit step structure, and the coil is sleeved on the tubular connecting portion.

3. The ECAS solenoid valve for a passenger car according to claim 2, characterized in that: The limiting step structure comprises a primary step and a secondary step, the limiting support portion is fixed on the primary step, an O-ring is sleeved on one side of the tubular connecting portion close to the valve, and the secondary step abuts against the O-ring.

4. The ECAS solenoid valve for a passenger car according to claim 1, characterized in that: An air path channel connected to the electromagnetic valve installation cavity is arranged in the valve body, and the air path channel includes a valve body air storage channel, an air pressure detection channel and a gas inlet and outlet which are interconnected.

5. The ECAS solenoid valve for a passenger car according to claim 4, characterized in that: An air pressure sensor is arranged in the air pressure detection channel, and the air pressure sensor detects the pressure in the air pressure detection channel. A sealing component is arranged in the valve body air storage channel, and the valve body air storage channel has an opening connected to the outside of the valve body. The bottom end of the sealing component extends into the opening and is sealed with the inner wall of the valve body air storage channel.

6. The ECAS solenoid valve for a passenger car according to claim 5, characterized in that: The sealing assembly includes a sealing plug and a sealing ring. One end of the sealing plug extends into the air storage channel of the valve body through an opening. The sealing ring is sleeved on the end of the sealing plug extending into the air storage channel of the valve body. The two ends of the sealing ring are respectively sealed with the sealing plug and the inner wall of the air storage channel of the valve body.

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