CN211314937U - Three-cylinder electric control shock absorber for automobile - Google Patents

Abstract

The utility model relates to a part field for vehicle chassis especially relates to a three automatically controlled shock absorbers for car. A three section of automatically controlled shock absorbers for car, by the shock absorber main part and with the bypass jar of shock absorber main part intercommunication constitutes, the shock absorber main part comprises piston rod assembly, oil blanket director assembly, working cylinder, intermediate tube and oil storage cylinder assembly, the intermediate tube cup joints in the oil storage cylinder assembly, the working cylinder cup joints in the intermediate tube, the piston rod assembly cup joints in the working cylinder, the annular opening part between piston rod assembly and the oil storage cylinder assembly is equipped with oil blanket director assembly, the intermediate tube both ends are closed up, and the middle waist of receiving, its waist department both sides of receiving be equipped with the opening with bypass jar intercommunication. The utility model discloses following beneficial effect has: by using the three-cylinder structure, part of oil in the working cylinder is introduced into the bypass valve, so that the structure is compact, and meanwhile, the three-cylinder vibration absorber has the advantages of large adjustable range of the single-cylinder vibration absorber and long stroke of the double-cylinder vibration absorber.

Description

Three-cylinder electric control shock absorber for automobile

Technical Field

The utility model relates to a part field for vehicle chassis especially relates to a three automatically controlled shock absorbers for car.

Background

An electronically controlled shock absorber for an automobile generally refers to an electronically controlled damping adjustable shock absorber applied to a semi-active suspension, which can input different currents through an external power supply, thereby changing the damping characteristics of the shock absorber to generate a required force. The existing electric control shock absorbers on the market are mostly single-cylinder and double-cylinder shock absorbers, the adjustable range of the single-cylinder electric control shock absorber is large, but the cylinder body is long, a large installation space is needed, the double-cylinder electric control shock absorbers are mostly controlled by a proportional valve, the requirement on the installation space is small, and the adjustable range is small. How to avoid the defects of the two electronic control shock absorbers is the problem to be solved by the inventor.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide an automatically controlled shock absorber of compact structure, the adjustable range of set single-tube shock absorber is big, the long advantage of binocular shock absorber stroke.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a three section of automatically controlled shock absorbers for car, by the shock absorber main part and with the bypass jar of shock absorber main part intercommunication constitutes, the shock absorber main part comprises piston rod assembly, oil blanket director assembly, working cylinder, intermediate tube and oil storage cylinder assembly, the intermediate tube cup joints in the oil storage cylinder assembly, the working cylinder cup joints in the intermediate tube, the piston rod assembly cup joints in the working cylinder, the annular opening part between piston rod assembly and the oil storage cylinder assembly is equipped with oil blanket director assembly, the intermediate tube both ends are closed up, and the middle waist of receiving, its waist department both sides of receiving be equipped with the opening with bypass jar intercommunication.

Preferably, the bypass cylinder is composed of an electromagnet, a valve body, a bypass inner cylinder, a bypass outer cylinder and a bypass valve system, the bypass outer cylinder is provided with an opening communicated with the opening on the intermediate pipe, the bypass inner cylinder is sleeved in the bypass outer cylinder, the bypass valve system is sleeved in the bypass inner cylinder, and the valve body and the electromagnet are respectively arranged at the openings at two ends of the bypass outer cylinder.

Preferably, the electromagnet is fixedly connected with the bypass outer cylinder, an accommodating cavity is formed in the center of the bottom of the electromagnet, a return spring is arranged in the accommodating cavity, the valve body is connected with the bypass outer cylinder in a sliding mode, and a tenon matched with the accommodating cavity is arranged at the top of the valve body and abuts against the return spring.

The utility model discloses following beneficial effect has: by using a three-cylinder structure, part of oil in the working cylinder is introduced into the bypass valve, so that the structure is compact, and meanwhile, the three-cylinder vibration absorber has the advantages of large adjustable range of a single-cylinder vibration absorber and long stroke of a double-cylinder vibration absorber; it is easy to adapt.

Drawings

FIG. 1 is an assembly view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view illustrating the flow direction of the recovery oil path according to the present invention;

fig. 5 is a schematic view illustrating the flow direction of the compression oil path according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The three-cylinder electric control shock absorber for the automobile shown in the figures 1, 2, 3, 4 and 5 comprises a shock absorber main body 1 and a bypass cylinder 2 communicated with the shock absorber main body 1, wherein the shock absorber main body 1 comprises a piston rod assembly 11, an oil seal guider assembly 12, a working cylinder 13, a middle pipe 14 and an oil storage cylinder assembly 15, the middle pipe 14 is sleeved in the oil storage cylinder assembly 15, the working cylinder 13 is sleeved in the middle pipe 14, the piston rod assembly 11 is sleeved in the working cylinder 13, the oil seal guider assembly 12 is arranged at an annular opening between the piston rod assembly 11 and the oil storage cylinder assembly, two ends of the middle pipe 14 are closed, the middle part is closed, and openings are arranged at two sides of the waist closing position of the middle part and communicated with the bypass cylinder 2. The bypass cylinder 2 is composed of an electromagnet 21, a valve body 22, a bypass inner cylinder 23, a bypass outer cylinder 24 and a bypass valve system 25, wherein the bypass outer cylinder 24 is provided with an opening communicated with the opening on the intermediate pipe 14, the bypass inner cylinder 23 is sleeved in the bypass outer cylinder 24, the bypass valve system 25 is sleeved in the bypass inner cylinder 23, and the valve body 22 and the electromagnet 21 are respectively arranged at openings at two ends of the bypass outer cylinder 24. The electromagnet 21 is fixedly connected with the bypass outer cylinder 24, an accommodating cavity is formed in the center of the bottom of the electromagnet 21, a return spring 211 is arranged in the accommodating cavity, the valve body 22 is connected with the bypass outer cylinder 24 in a sliding mode, and a tenon 221 matched with the accommodating cavity is arranged at the top of the valve body and abuts against the return spring 211. The utility model discloses electro-magnet 21 circular telegram, valve body 22 is opened, records as state 1, and electro-magnet 21 cuts off the power supply, and valve body 22 closes, records as state 0, and like this, the valve body 22 of controlling both ends electro-magnet 21 control has four kinds of states: 00.01.10.11, the more oil paths, the smoother the oil flow, so when the two end valves of the shock absorber are closed in the 00 state, the damping force is the maximum. The utility model discloses shock absorber compression stroke is down for the piston, extrudees compression chamber fluid, and compression intracavity fluid divides three routes to be extruded: one path flows through the flow valve, one path flows through the compression valve, and the third path flows through the bypass cylinder. The first two paths are conventional oil passages and are not described in detail. And after the third path of oil flows out of the compression cavity, the third path of oil flows into a gap between the working cylinder and the middle pipe through a preformed hole at the bottom of the working cylinder, flows into the bypass inner cylinder through the gap, flows into the gap between the bypass inner cylinder and the bypass outer cylinder through a bypass compression regulating valve system, flows back to the gap between the middle pipe and the working cylinder through a recovery channel, and finally flows back to a recovery cavity of the shock absorber through an opening at the top of the working cylinder to finish the circulation of the oil in the whole compression stroke. The shock absorber has a rebound stroke opposite the compression stroke.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. A three-cylinder electric control shock absorber for an automobile is composed of a shock absorber main body (1) and a bypass cylinder (2) communicated with the shock absorber main body (1), it is characterized in that the shock absorber main body (1) is composed of a piston rod assembly (11), an oil seal guider assembly (12), a working cylinder (13), a middle pipe (14) and an oil storage cylinder assembly (15), the intermediate pipe (14) is sleeved in the oil storage cylinder assembly (15), the working cylinder (13) is sleeved in the intermediate pipe (14), the piston rod assembly (11) is sleeved in the working cylinder (13), an oil seal guider assembly (12) is arranged at an annular opening between the piston rod assembly (11) and the oil storage cylinder assembly, the two ends of the middle tube (14) are closed, the middle part is waisted, and openings are arranged on the two sides of the waisted part and communicated with the bypass cylinder (2).

2. The three-cylinder electric control shock absorber for the automobile according to claim 1, wherein the bypass cylinder (2) is composed of an electromagnet (21), a valve body (22), a bypass inner cylinder (23), a bypass outer cylinder (24) and a bypass valve system (25), the bypass outer cylinder (24) is provided with an opening communicated with the opening on the intermediate pipe (14), the bypass inner cylinder (23) is sleeved in the bypass outer cylinder (24), the bypass valve system (25) is sleeved in the bypass inner cylinder (23), and the openings at two ends of the bypass outer cylinder (24) are respectively provided with the valve body (22) and the electromagnet (21).

3. The electrically controlled shock absorber for three tubes of an automobile according to claim 2, characterized in that the electromagnet (21) is fixedly connected with the bypass outer tube (24), a containing cavity is arranged at the bottom center position of the electromagnet (21), a return spring (211) is arranged in the containing cavity, the valve body (22) is connected with the bypass outer tube (24) in a sliding manner, and a tenon (221) matched with the containing cavity is arranged at the top of the valve body and abuts against the return spring (211).

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