Electromagnetic valve of electric control shock absorber

Abstract

The utility model discloses an electric control shock absorber solenoid valve which comprises a shock absorber valve shell, a valve body and a coil, the shock absorber valve shell is installed on the outer side wall of a shock absorber and communicated with the interior of the shock absorber, the valve body is installed in the shock absorber valve shell, and the end of the valve body is provided with a center protruding structure. The coil is installed between the center protruding structure of the valve body and the damper valve shell and fixed to the damper valve shell. According to the electromagnetic valve of the electric control shock absorber, a shell sleeve structure on the valve body is omitted, on the premise that the size of the electric control shock absorber is not increased, the design size of the coil is increased, the resistance of the electromagnetic valve is reduced, the heating value of the electric control shock absorber in the using process is reduced, and the service life of the electric control shock absorber is prolonged. According to the electromagnetic valve of the electric control shock absorber, the service life of a product under the large-current working condition is prolonged, the control stability of a vehicle is guaranteed, meanwhile, the complexity of valve body parts is reduced, the part machining efficiency is improved, and therefore the production cost of the electromagnetic valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic control equipment, in particular to an electromagnetic valve of an electronic control shock absorber. Background Technique

[0002] The electronic control shock absorber is an important part of the vehicle electronic control system, mainly used to adjust the vehicle body suspension system to reduce the vibration and bump of the vehicle when driving on uneven roads. The working principle of the electronic control shock absorber mainly consists of the following steps:

[0003] The first step, the sensor collects signals: During the vehicle driving process, the sensors built in the electronic control shock absorber collect the vehicle driving road condition signals and convert them into electrical signals for processing. These signals include vehicle speed, acceleration, braking, steering and other information;

[0004] The second step, the controller calculates: After receiving the collected information, the controller performs calculation and analysis processing, judges the current driving road condition and the state of the vehicle body (such as viaduct, ring road, potholed road surface, highway, etc.), formulates the driving route and path, and then generates the optimal shock absorption control parameters.

[0005] The third step, the actuator controls the shock absorber: At this time, the signal generated by the controller will be transmitted to the electronic control shock absorber. The electronic control shock absorber is composed of a shock absorber main body and an electromagnetic valve and other components. When the signal sent by the controller reaches the electronic control shock absorber, they will perform the process of compression and release in the compression air chamber. At the same time, the electromagnetic valve will control the cross-sectional area of the shock absorber and the characteristics of the shock absorption spring according to the calculation result to adapt to the needs of the vehicle body;

[0006] The fourth step, realizing the shock absorption effect: Under the control of the shock absorber actuator, the internal electromagnetic valve system controls the flow of the oil fluid, so that the vehicle has better stability and flatness during operation. By adjusting the shock absorption control parameters to adapt to the vehicle driving road condition and steering situation, the optimization of the shock absorption effect and the vehicle suspension system is realized.

[0007] As can be seen from the above, relevant electromagnetic valves are needed for the electronic control shock absorber to realize its shock absorption function. Chinese Patent (Publication No.: CN 115289165 A) discloses a damping control electromagnetic valve, and its structure is as Figure 1 shown. The end of the valve body a for installing the magnetic circuit coil c wraps the magnetic circuit coil c with its own outer shell sleeve b, and its magnetic conduction part e depends on the structure of its own outer shell sleeve b. As Figure 2 shown, it is the installation relationship of this electromagnetic valve structure in the shock absorber. This electromagnetic valve is installed inside the valve housing d of the shock absorber e to control the oil fluid pressure inside the shock absorber e. Obviously, the structure of this electromagnetic valve has the following defects:

[0008] (1) It limits the layout space of the magnetic circuit coil, thereby restricting the lower limit of the resistance and making it impossible to obtain a lower resistance.

[0009] (2) The complexity of the valve body parts is high, resulting in a relatively high production cost of the solenoid valve.

[0010] Based on this, the present utility model proposes an electronically controlled shock absorber solenoid valve to solve the above-mentioned problems. Summary of the Utility Model

[0011] The purpose of the present utility model is to provide an electronically controlled shock absorber solenoid valve, which simplifies the complexity of the valve body and achieves the effects of reducing resistance and cost.

[0012] To solve the above technical problems, the present utility model provides an electronically controlled shock absorber solenoid valve, including a shock absorber valve housing, a valve body and a coil. The shock absorber valve housing is installed on the outer side wall of the shock absorber and is in communication with the inside of the shock absorber. The valve body is installed in the shock absorber valve housing and has a central convex structure at its end. The coil is installed between the central convex structure of the valve body and the shock absorber valve housing and is fixed to the shock absorber valve housing.

[0013] Further, a first sealing ring is installed on the side wall of the valve body through a limiting groove, and the first sealing ring abuts against the inner side wall of the shock absorber valve housing. By setting the first sealing ring, a sealed installation between the valve body and the shock absorber valve housing is realized.

[0014] Further, a second sealing ring is installed on the side wall of the coil through a limiting groove, and the second sealing ring abuts against the inner side wall of the shock absorber valve housing. By setting the second sealing ring, a sealed installation between the coil and the shock absorber valve housing is realized.

[0015] Further, the coil is fixed to the shock absorber valve housing through a snap ring, and the snap ring is used to fix the coil to the shock absorber valve housing, realizing a stable installation between the entire solenoid valve and the shock absorber.

[0016] Further, an installation groove for installing the snap ring is provided on the side wall of the coil, and a fixing groove cooperating with the snap ring is provided on the inner side wall of the shock absorber valve housing.

[0017] Further, the coil and the shock absorber valve housing are fixed by an interference fit.

[0018] Further, the coil and the shock absorber valve housing are fixed by a riveting press.

[0019] Further, the central axes of the shock absorber valve housing, the valve body and the coil coincide, realizing a coaxial installation among the shock absorber valve housing, the valve body and the coil, and ensuring the use effect of the solenoid valve.

[0020] Compared with the prior art, the utility model has at least the following beneficial effects:

[0021] (1) For the electromagnetic valve of the electronically controlled shock absorber provided by the utility model, the outer shell sleeve structure on the valve body is cancelled, so that the design volume of the coil is increased without increasing the volume of the electronically controlled shock absorber, the resistance of the electromagnetic valve is reduced, and thus the heat generation during the use of the electronically controlled shock absorber is reduced, the service time of the product under the condition of large current is prolonged, and the handling stability of the vehicle is ensured;

[0022] (2) The electromagnetic valve of the electronically controlled shock absorber provided by the utility model reduces the complexity of the valve body parts, improves the part processing efficiency, and thus reduces the production cost of the electromagnetic valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a damping control electromagnetic valve in the prior art;

[0024] Figure 2 is an installation schematic diagram between a damping control electromagnetic valve in the prior art and a shock absorber;

[0025] Figure 3 is an overall structural schematic diagram of the electromagnetic valve of the electronically controlled shock absorber of the utility model.

[0026] In the figure: 1. Shock absorber valve housing; 11. Fixed groove; 2. Valve body; 21. Central convex structure; 3. Coil; 31. Placing groove; 4. First sealing ring; 5. Second sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The electromagnetic valve of the electronically controlled shock absorber of the utility model will be described in more detail below with reference to the schematic diagrams, in which the preferred embodiments of the utility model are shown. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the beneficial effects of the utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the utility model.

[0028] In the following paragraphs, the utility model will be described more specifically by way of example with reference to the drawings. The advantages and features of the utility model will be clearer according to the following description. It should be noted that the drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0029] As Figure 3 shown, an embodiment of the utility model provides an electromagnetic valve of an electronically controlled shock absorber, which includes a shock absorber valve housing 1, a valve body 2 and a coil 3.

[0030] Specifically, the shock absorber valve housing is installed on the outer side wall of the shock absorber and communicates with the inside of the shock absorber. The end of the valve body 2 has a central convex structure 21. The coil 3 is installed between the central convex structure 21 and the shock absorber valve housing 1 and is fixed to the shock absorber valve housing 1. Compared with the prior art, the outer shell of the valve body 2 cancels the outer shell sleeve structure, and the shock absorber valve housing 1 is directly used as the outer protection structure of the coil 3. The magnetic conduction circuit of the solenoid valve no longer depends on its own outer shell sleeve, but is composed of the valve body 2, the coil 3 and the shock absorber valve housing 1 together. In this way, without increasing the diameter of the shock absorber valve housing 1, a coil 3 with a larger outer diameter can be used, that is, without increasing the volume of the electronically controlled shock absorber, the design volume of the coil 3 is increased, the resistance of the solenoid valve is reduced, and the heat generation during the use of the electronically controlled shock absorber is reduced, prolonging the service time of the product under high-current conditions and ensuring the handling stability of the vehicle;

[0031] At the same time, the outer shell sleeve structure of the valve body 2 is cancelled, making the structure of the valve body 2 simpler. In this way, the valve body 2 is also processed more quickly during processing, that is, the part processing efficiency is improved and the production cost of the solenoid valve is reduced.

[0032] In a specific embodiment, a first sealing ring 4 is installed on the side wall of the valve body 2 through a limiting groove. The first sealing ring 4 abuts against the inner side wall of the shock absorber valve housing 1. By setting the first sealing ring 4, the sealed installation between the valve body 2 and the shock absorber valve housing 1 is realized.

[0033] Preferably, a second sealing ring 5 is installed on the side wall of the coil 3 through a limiting groove. The second sealing ring 5 abuts against the inner side wall of the shock absorber valve housing 1. By setting the second sealing ring 5, the sealed installation between the coil 3 and the shock absorber valve housing 1 is realized.

[0034] Specifically, the first sealing ring 4 can be arranged on the side wall of the end of the valve body 2 close to the inside of the shock absorber. By setting the first sealing ring 4, the sealed installation between the valve body 2 and the shock absorber valve housing 1 is realized, thus avoiding oil leakage into the coil 3.

[0035] The second sealing ring 5 is installed on the side wall of the joint of the coil 3. By setting the second sealing ring 5, the sealed installation between the coil 3 and the shock absorber valve housing 1 is realized, ensuring the waterproof and dustproof requirements of the solenoid valve.

[0036] In a specific embodiment, the coil 3 is fixed to the shock absorber valve housing 1 through a snap ring (not shown in the figure). The coil 3 and the shock absorber valve housing 1 are fixed by the snap ring, realizing the stable installation of the whole solenoid valve and the shock absorber.

[0037] Specifically, an installation groove 31 for installing a snap ring is formed on the side wall of the coil 3, and a fixing groove 11 for mating with the snap ring is formed on the inner side wall of the shock absorber valve housing 1. After the snap ring installed in the installation groove 31 is mated with the fixing groove 11, the valve body 2 and the coil 3 are stably installed in the shock absorber valve housing 1.

[0038] The fixation between the coil 3 and the shock absorber valve housing 1 is not limited to the above-described fixation using a snap ring, and an interference fit or press riveting method can also be used for fixation. The specific assembly processes for snap ring, interference fit, and press riveting are all conventional technical means and will not be elaborated here.

[0039] In the above specific embodiment, the central axes of the shock absorber valve housing 1, the valve body 2, and the coil 3 coincide, realizing the coaxial installation among the shock absorber valve housing 1, the valve body 2, and the coil 3, and ensuring the use effect of the solenoid valve.

[0040] In summary, compared with the prior art, the present invention has at least the following advantages:

[0041] (1) The solenoid valve for an electronically controlled shock absorber provided by the present invention cancels the outer shell sleeve structure on the valve body, realizes an increase in the coil design volume without increasing the volume of the electronically controlled shock absorber, reduces the resistance of the solenoid valve, thereby reducing the heat generation during the use of the electronically controlled shock absorber, prolonging the service time of the product under high-current working conditions, and ensuring the vehicle's handling stability.

[0042] (2) The solenoid valve for an electronically controlled shock absorber provided by the present invention reduces the complexity of the valve body parts, improves the part processing efficiency, and thus reduces the production cost of the solenoid valve.

[0043] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An electronically controlled shock absorber solenoid valve, characterized in that, It includes a shock absorber valve housing, a valve body, and a coil; The shock absorber valve housing is installed on the outer wall of the shock absorber and communicates with the inside of the shock absorber; The valve body is installed in the shock absorber valve housing and has a central convex structure at its end; The coil is installed between the central convex structure of the valve body and the shock absorber valve housing and is fixed to the shock absorber valve housing.

2. The solenoid valve of the electronically controlled shock absorber according to claim 1, wherein A first sealing ring is installed on the side wall of the valve body through a limiting groove, and the first sealing ring abuts against the inner side wall of the shock absorber valve housing.

3. The solenoid valve of the electronically controlled shock absorber according to claim 1, characterized in that, A second sealing ring is installed on the side wall of the coil through a limiting groove, and the second sealing ring abuts against the inner side wall of the shock absorber valve housing.

4. The solenoid valve of the electronically controlled shock absorber according to claim 1, wherein The coil is fixed to the shock absorber valve housing by a circlip.

5. The solenoid valve of the electronically controlled shock absorber according to claim 4, characterized in that, An installation groove for installing the circlip is formed on the side wall of the coil, and a fixing groove matched with the circlip is formed on the inner side wall of the shock absorber valve housing.

6. The solenoid valve of the electronically controlled shock absorber according to claim 1, characterized in that, The coil and the shock absorber valve housing are fixed by an interference fit.

7. The solenoid valve of the electronically controlled shock absorber according to claim 1, characterized in that, The coil and the shock absorber valve housing are fixed by press riveting.

8. The solenoid valve of the electronically controlled shock absorber according to claim 1, characterized in that, The central axes of the shock absorber valve housing, the valve body, and the coil coincide.

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