Electromagnetic adjusting structure of electro-hydraulic active suspension shock absorber of passenger car

Abstract

The utility model relates to the technical field of passenger car electro-hydraulic active suspension shock absorbers, in particular to a passenger car electro-hydraulic active suspension shock absorber electromagnetic adjusting structure which comprises a cylinder body, an oil storage cavity and an air chamber are arranged in the cylinder body, magnetorheological fluid is filled in the oil storage cavity, a piston rod is inwards inserted in the top of the cylinder body, and a piston rod is arranged in the piston rod. According to the utility model, the cylinder body is filled with the magnetorheological fluid, the electromagnetic fluid is added into the damping oil, the vibration of the road surface can change the magnetic fields of the constant-value electromagnetic coil and the equidirectional electromagnetic coil, so that the constant-value electromagnetic coil and the equidirectional electromagnetic coil can change the vibration of the road surface, and the vibration of the constant-value electromagnetic coil and the equidirectional electromagnetic coil is reduced. The magnetorheological fluid becomes thick, the flow velocity of the magnetorheological fluid changes, and the damping value changes.

Description

Technical Field

[0001] The utility model relates to the technical field of electro-hydraulic active suspension shock absorbers for passenger cars, in particular to an electromagnetic adjustment structure of an electro-hydraulic active suspension shock absorber for a passenger car. Background Art

[0002] In order to rapidly attenuate the vibration of the frame and the body and improve the smoothness and comfort of the car's driving, the car suspension system is generally equipped with a shock absorber. The double-acting cylinder shock absorber is widely used in cars. The shock absorber is a vulnerable part during the use of the car. The working quality of the shock absorber will directly affect the stability of the car's driving and the life of other parts. However, the structure of the shock absorber of the shock absorption system in the prior art includes a spring and a hydraulic cylinder, which has the disadvantages of slow response and non-adjustable strength. The damping force generated by the shock absorber is the same at any time, but when the car is driving on roads with different road conditions such as highways, mountain roads, muddy roads, cement roads, etc., the damping force requirements of the shock absorber are not the same, which leads to a smaller effect of the shock absorber assembly under special road conditions, which is easy to cause danger.

[0003] Therefore, it is particularly important to design an electromagnetic adjustment structure for an electro-hydraulic active suspension shock absorber for a passenger car to change the above technical defects and improve the overall practicality. Utility Model Content

[0004] The utility model aims to provide an electromagnetic adjustment structure of an electro-hydraulic active suspension shock absorber for a passenger car to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electromagnetic adjustment structure of an electro-hydraulic active suspension shock absorber for a passenger car comprises a cylinder body, an oil storage chamber and an air chamber are arranged inside the cylinder body, the oil storage chamber is filled with magnetorheological fluid, a piston rod is inserted inwardly from the top of the cylinder body, a fixed-value electromagnetic coil is arranged at the bottom end of the piston rod, a fixed rod head is installed inside the cylinder body and at the bottom of the air chamber, a return spring is arranged on the top of the fixed rod head, a push plate is installed on the top of the return spring, electric telescopic rods are installed on both sides of the fixed rod head, and a same-direction electromagnetic coil is installed on the top of the push plate.

[0007] As a preferred solution of the utility model, a vibration frequency monitor is arranged on the left side of the cylinder body, and a receiving and transmitting regulator is arranged on the right side of the cylinder body.

[0008] As a preferred solution of the utility model, the receiving and transmitting regulator is respectively connected to the vibration frequency monitor, the fixed value electromagnetic coil, and the electric telescopic rod through wires, and the connection method is electrical connection.

[0009] As a preferred solution of the utility model, the electric telescopic rod adopts a small linear electric push rod.

[0010] As a preferred solution of the utility model, the driving ends of the two groups of electric telescopic rods are respectively fixedly connected to the left and right sides of the bottom of the pushing plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, an electromagnetic adjustment structure of an electro-hydraulic active suspension shock absorber for a passenger car is set up, and magnetorheological fluid is filled inside the cylinder body. The electromagnetic fluid is added to the shock-absorbing oil. The vibration of the road surface will cause the magnetic field of the fixed-value electromagnetic coil and the same-direction electromagnetic coil to change, the magnetorheological fluid becomes thicker, the flow rate of the magnetorheological fluid will change, and the damping value will change. In addition, a same-direction electromagnetic coil is added inside the cylinder body. The vibration generated by the car during driving will be monitored and evaluated by the vibration frequency monitor. After the damping force demand is analyzed, the electric telescopic rod can be driven by the receiving and sending regulator to the same-direction electromagnetic coil. The position of the magnetic coil is adjusted, thereby adjusting the distance between the fixed electromagnetic coil and the same-direction electromagnetic coil. When the damping value needs to be increased to enhance the strength of the shock absorber, the distance between the fixed electromagnetic coil and the same-direction electromagnetic coil is increased to increase the current, increase the repulsive force generated by the same-direction magnetic field, and enhance the strength of the shock absorber. When the damping value needs to be reduced to weaken the strength of the shock absorber, the distance between the fixed electromagnetic coil and the same-direction electromagnetic coil is shortened to reduce the current, reduce the repulsive force generated by the same-direction magnetic field, and weaken the strength of the shock absorber, thereby achieving the purpose of adjusting the damping force of the shock absorber for different road surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 This is the internal structure diagram of the cylinder body of the utility model;

[0015] Figure 3 It is an enlarged schematic diagram of structure A of the utility model.

[0016] In the figure: 1. Cylinder body; 2. Oil storage chamber; 3. Air chamber; 4. Magnetorheological fluid; 5. Piston rod; 6. Fixed value electromagnetic coil; 7. Fixed rod head; 8. Reset spring; 9. Push plate; 10. Electric telescopic rod; 11. Same direction electromagnetic coil; 12. Vibration frequency monitor; 13. Receiving and transmitting regulator. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0021] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0022] An electromagnetic adjustment structure of an electro-hydraulic active suspension shock absorber for a passenger car comprises a cylinder body 1, wherein an oil storage chamber 2 and an air chamber 3 are arranged inside the cylinder body 1, wherein the oil storage chamber 2 is filled with a magnetorheological fluid 4, wherein the electromagnetic fluid is added to the shock-absorbing oil, and the road vibration will cause the magnetic fields of a fixed-value electromagnetic coil 6 and a co-directional electromagnetic coil 11 to change, the magnetorheological fluid becomes thick, the flow rate of the magnetorheological fluid will change, and the damping value will change. A piston rod 5 is inserted inwardly from the top of the cylinder body 1, and a fixed-value electromagnetic coil 6 is arranged at the bottom end of the piston rod 5. A fixed rod head 7 is installed inside the cylinder body 1 and at the bottom of the air chamber 3, a return spring 8 is arranged on the top of the fixed rod head 7, and a push plate 9 is installed on the top of the return spring 8. Electric telescopic rods 10 are installed on both sides of the fixed rod head 7, and a co-directional electromagnetic coil 11 is installed on the top of the push plate 9. A vibration frequency monitor 12 is arranged on the left side of the cylinder body 1 for monitoring road vibration data, and a receiving and transmitting regulator 13 is arranged on the right side of the cylinder body 1 for receiving and sending commands.

[0023] The receiving and transmitting regulator 13 is respectively connected to the vibration frequency monitor 12, the fixed value electromagnetic coil 6, and the electric telescopic rod 10 through wires, and the connection method is electrical connection. The electric telescopic rod 10 adopts a small linear electric push rod, and the driving ends of the two groups of electric telescopic rods 10 are respectively fixedly connected to the left and right sides of the bottom of the pushing plate 9.

[0024] The working process of the utility model is as follows: the cylinder body 1 is filled with magnetorheological fluid 4, which is electromagnetic fluid added to the shock-absorbing oil. The road vibration will change the magnetic field of the fixed value electromagnetic coil 6 and the same direction electromagnetic coil 11, the magnetorheological fluid becomes thicker, the flow rate of the magnetorheological fluid will change, and the damping value will change. In addition, the same direction electromagnetic coil 11 is added inside the cylinder body 1. The vibration generated by the car during driving will be monitored and evaluated by the vibration frequency monitor 12. After analyzing the damping force demand, the electric telescopic rod 10 can be driven by the receiving and transmitting regulator 13 to adjust the position of the same direction electromagnetic coil 11. Adjustment, thereby adjusting the distance between the fixed electromagnetic coil 6 and the same-direction electromagnetic coil 11. When the damping value needs to be increased to enhance the strength of the shock absorber, the distance between the fixed electromagnetic coil 6 and the same-direction electromagnetic coil 11 is increased to increase the current, increase the repulsive force generated by the same-direction magnetic field, and enhance the strength of the shock absorber. When the damping value needs to be reduced to weaken the strength of the shock absorber, the distance between the fixed electromagnetic coil 6 and the same-direction electromagnetic coil 11 is shortened to reduce the current, reduce the repulsive force generated by the same-direction magnetic field, and weaken the strength of the shock absorber, thereby achieving the purpose of adjusting the damping force of the shock absorber for different road surfaces.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic adjustment structure of an electro-hydraulic active suspension shock absorber for a passenger car, comprising a cylinder body (1), characterized in that: An oil storage chamber (2) and an air chamber (3) are provided inside the cylinder body (1), the oil storage chamber (2) is filled with magnetorheological fluid (4), a piston rod (5) is inserted inwardly from the top of the cylinder body (1), a fixed value electromagnetic coil (6) is provided at the bottom end of the piston rod (5), a fixed rod head (7) is installed inside the cylinder body (1) and at the bottom of the air chamber (3), a return spring (8) is provided at the top of the fixed rod head (7), a push plate (9) is installed at the top of the return spring (8), electric telescopic rods (10) are installed on both left and right sides of the fixed rod head (7), and a same-direction electromagnetic coil (11) is installed on the top of the push plate (9).

2. The electromagnetic adjustment structure of a passenger car electro-hydraulic active suspension shock absorber according to claim 1, characterized in that: A vibration frequency monitor (12) is arranged on the left side of the cylinder body (1), and a receiving and transmitting regulator (13) is arranged on the right side of the cylinder body (1).

3. The electromagnetic adjustment structure of a passenger car electro-hydraulic active suspension shock absorber according to claim 2, characterized in that: The receiving and transmitting regulator (13) is respectively connected to the vibration frequency monitor (12), the fixed value electromagnetic coil (6), and the electric telescopic rod (10) through wires, and the connection method is electrical connection.

4. The electromagnetic adjustment structure of a passenger car electro-hydraulic active suspension shock absorber according to claim 1, characterized in that: The electric telescopic rod (10) adopts a small linear electric push rod.

5. The electromagnetic adjustment structure of a passenger car electro-hydraulic active suspension shock absorber according to claim 1, characterized in that: The driving ends of the two sets of electric telescopic rods (10) are respectively fixedly connected to the left and right sides of the bottom of the pushing plate (9).

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