Efficient energy feedback type variable damping electromagnetic suspension structure

Abstract

The utility model discloses an efficient energy feedback type variable damping electromagnetic suspension structure, which relates to the technical field of automobile electromagnetic suspension structures, and comprises an upper cylinder barrel, the upper cylinder barrel comprises an outer cylinder barrel and an inner cylinder barrel, a lower cylinder barrel is nested between the outer cylinder barrel and the inner cylinder barrel, an annular winding is arranged in the upper cylinder barrel, and a damping coil is arranged in the lower cylinder barrel. A cylindrical winding is arranged on the outer wall of an inner cylinder barrel of the upper cylinder barrel, a magnetism isolating material is arranged on the inner wall of the inner cylinder barrel of the upper cylinder barrel, a cylindrical component extending in the axis direction is arranged at the bottom of the lower cylinder barrel, a piston is arranged at the top of the cylindrical component, a plurality of liquid through holes are formed in the surface of the piston, an electromagnetic coil is arranged in the piston, and a first circuit is arranged in the cylindrical component. The energy feedback device has the advantages of being simple in structure, small and exquisite in size and efficient in energy feedback, damping adjustment is rapid, comfort and controllability of a vehicle can be considered, and meanwhile energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electromagnetic suspension structures, in particular to a high-efficiency energy-feeding variable damping electromagnetic suspension structure. Background Art

[0002] New energy vehicles are generally heavier than traditional vehicles, and traditional passive mechanical suspension can no longer meet their driving comfort and control requirements. Therefore, many new energy vehicles and luxury cars on the market are equipped with active suspension or semi-active suspension. Active suspension can be roughly divided into two categories: one is electronically controlled active hydraulic suspension, and the other is electronically controlled air suspension; semi-active suspension mostly adopts CDC and FSD electromagnetic shock absorption solutions. Both solutions adjust the damping size by changing the throttling area of ​​the valve body.

[0003] Electronically controlled active hydraulic suspension and air suspension consume a lot of electricity and have no energy feedback function, which is not in line with the current concept of energy conservation and environmental protection. The scanning frequency of CDC and FSD electromagnetic shock absorption solutions is low, and it is difficult to respond in time when facing complex road conditions. It has no significant effect on improving the comfort and handling of the car, and it also consumes energy. Utility Model Content

[0004] The utility model provides a high-efficiency energy-feeding variable damping electromagnetic suspension structure, which solves 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] A high-efficiency energy-feeding variable damping electromagnetic suspension structure comprises an upper cylinder, wherein the upper cylinder comprises an outer cylinder and an inner cylinder, a lower cylinder is nested between the outer cylinder and the inner cylinder, an annular winding is arranged inside the upper cylinder, a cylindrical winding is arranged on the outer wall of the inner cylinder of the upper cylinder, a magnetic isolation material is arranged on the inner wall of the inner cylinder of the upper cylinder, a columnar component extending along the axial direction is arranged at the bottom of the lower cylinder, a piston is arranged at the top of the columnar component, a plurality of liquid holes are arranged on the surface of the piston, an electromagnetic coil is arranged inside the piston, a first circuit is arranged inside the columnar component, and a cylindrical permanent magnet is arranged on the lower cylinder.

[0007] As an optimal technical solution of the utility model, the upper cylinder is fixedly connected to the upper end cover, the upper end cover is connected to the body, the lower cylinder is fixedly connected to the lower end cover, the lower end cover is connected to the body, and a mechanical spring is provided between the upper end cover and the lower end cover.

[0008] As a preferred technical solution of the utility model, an upper rubber gasket is provided on the lower cylinder.

[0009] As a preferred technical solution of the utility model, a lower rubber gasket is provided on the upper cylinder.

[0010] As a preferred technical solution of the utility model, the cylindrical winding is connected to a second circuit, and the second circuit is connected to a car battery.

[0011] As a preferred technical solution of the utility model, the first circuit is connected to the second circuit, and the second circuit is connected to the automobile battery.

[0012] The utility model has the following benefits:

[0013] When the car is driving on the road, the bumps and vibrations on the road are transmitted to the wheels. The mechanical energy of the suspension vibration driven by the wheels is converted into electrical energy through the relative movement between the permanent magnets and windings arranged on the upper and lower cylinders in the suspension, and the electrical energy is stored in the car battery. When driving under complex road conditions or intense driving, the car battery supplies current to the electromagnetic coil of the piston in the electromagnetic suspension through the circuit arranged in the columnar member, and changes the arrangement of the magnetorheological fluid molecules inside the piston to adjust the damping. The reaction adjustment time is fast, which can effectively improve the comfort and stability of the vehicle. The utility model has the characteristics of simple structure, small size, and efficient energy feedback. It can achieve rapid damping adjustment, take into account the comfort and handling of the vehicle, and save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a sectional view of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the external structure of the utility model.

[0016] Figure 3 It is a cross-sectional view of the upper cylinder barrel of the utility model.

[0017] Figure 4 It is a cross-sectional view of the lower cylinder of the utility model.

[0018] Figure 5 It is an isometric view of the piston and cylindrical component of the utility model.

[0019] Figure 6 It is a schematic diagram of the internal structure of the piston and the cylindrical component of the utility model.

[0020] Figure 7 It is a schematic diagram of external circuit connection of the suspension cylinder of the utility model.

[0021] In the figure: 1, upper cylinder; 2, lower cylinder; 3, annular winding; 4, upper rubber gasket; 5, lower rubber gasket; 6, cylindrical permanent magnet; 7, cylindrical winding; 8, upper end cover; 9, lower end cover; 10, columnar member; 11, piston; 12, magnetic isolation material; 13, mechanical spring; 14, liquid hole; 15, electromagnetic coil; 16, first circuit; 17, car battery; 18, second circuit; 19, third circuit. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. Example 1

[0024] See also Figure 1-Figure 7 A high-efficiency energy-feeding variable damping electromagnetic suspension structure comprises an upper cylinder 1, wherein the upper cylinder 1 comprises an outer cylinder and an inner cylinder, a lower cylinder 2 is nested between the outer cylinder and the inner cylinder, an annular winding 3 is arranged inside the upper cylinder 1, a cylindrical winding 7 is arranged on the outer wall of the inner cylinder of the upper cylinder 1, a magnetic isolation material 12 is arranged on the inner wall of the inner cylinder of the upper cylinder 1, a columnar component 10 extending along the axial direction is arranged at the bottom of the lower cylinder 2, a piston 11 is arranged at the top of the columnar component 10, a plurality of liquid holes 14 are arranged on the surface of the piston 11, an electromagnetic coil 15 is arranged in the piston 11, a first circuit 16 is arranged in the columnar component 10, and a cylindrical permanent magnet 6 is arranged on the lower cylinder 2.

[0025] The upper cylinder 1 is fixedly connected to the upper end cover 8, which is connected to the vehicle body; the lower cylinder 2 is fixedly connected to the lower end cover 9, which is connected to the vehicle body; and a mechanical spring 13 is provided between the upper end cover 8 and the lower end cover 9.

[0026] An upper rubber gasket 4 is provided on the lower cylinder 2 .

[0027] The upper cylinder 1 is provided with a lower rubber gasket 5 .

[0028] The cylindrical winding 7 is connected to a second line 18 , and the second line 18 is connected to a vehicle battery 17 .

[0029] The first line 16 is connected to a second line 18 , and the second line 18 is connected to a vehicle battery 17 .

[0030] During the implementation of the utility model, when the wheel is running on the road, the vibration of the wheel drives the lower cylinder 2 to move up and down between the outer cylinder and the inner cylinder connected to the upper cylinder 1 of the vehicle body. At this time, the cylindrical permanent magnet 6 outside the lower cylinder 2 moves relative to the winding arranged inside the outer cylinder in the upper cylinder 1 and the cylindrical winding 7 of the inner cylinder in the upper cylinder 1, generating induced electromotive force and current, which are stored in the automobile battery 17 through the circuit. In this process, the cylindrical permanent magnet 6 on the outer wall of the lower cylinder 2 is equivalent to the mover, and the annular winding 3 inside the outer cylinder in the upper cylinder 1 and the cylindrical winding 7 on the outer wall of the inner cylinder are equivalent to the stator. When the cylindrical permanent magnet 6 on the outer wall of the lower cylinder 2 moves up and down between the outer cylinder and the inner cylinder of the upper cylinder 1, the windings arranged in the outer cylinder and the inner cylinder will generate induced electromotive force and current, which effectively improves the efficiency of energy feeding. The electric energy generated by the suspension is stored in the automobile battery 17 through the second line 18.

[0031] When the vehicle is in a more extreme environment: such as high-speed cornering, rapid lane change, emergency braking, rapid acceleration, etc., which may cause the center of gravity of the vehicle body to change significantly, the vehicle battery 17 is connected to the first line 16 arranged in the cylindrical component 10 through the third line 19, and outputs a corresponding current to the electromagnetic coil 15 inside the piston 11, so that a magnetic field is generated around the piston. The magnetorheological fluid inside the piston is affected by the magnetic field, and the arrangement of its liquid molecules changes, so that the resistance of the magnetorheological fluid when passing through the piston liquid hole 14 changes, thereby changing the damping of the suspension, and providing sufficient support to the vehicle in the above situation.

[0032] In order to prevent the cylindrical permanent magnet 6 outside the lower cylinder from interfering with the magnetorheological fluid inside the lower cylinder, the inner wall of the cavity of the lower cylinder is made of magnetic isolation material 12.

[0033] In order to prevent the top of the lower cylinder from directly colliding with the top of the inner part of the upper cylinder, an upper rubber gasket 4 and a lower rubber gasket 5 are respectively provided on the surface of the lower cylinder.

[0034] The utility model has the characteristics of simple structure, compact size and efficient energy feedback, realizes rapid damping adjustment, can take into account both vehicle comfort and controllability, and also saves energy.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-efficiency energy-feeding variable damping electromagnetic suspension structure, comprising an upper cylinder, characterized in that: The upper cylinder comprises an outer cylinder and an inner cylinder, the lower cylinder is nested between the outer cylinder and the inner cylinder, an annular winding is arranged inside the upper cylinder, a cylindrical winding is arranged on the outer wall of the inner cylinder of the upper cylinder, a magnetic isolation material is arranged on the inner wall of the inner cylinder of the upper cylinder, a columnar component extending along the axial direction is arranged at the bottom of the lower cylinder, a piston is arranged at the top of the columnar component, a plurality of liquid holes are arranged on the surface of the piston, an electromagnetic coil is arranged inside the piston, a first circuit is arranged inside the columnar component, and a cylindrical permanent magnet is arranged on the lower cylinder.

2. The high-efficiency energy-feeding variable damping electromagnetic suspension structure according to claim 1 is characterized in that: The upper cylinder is fixedly connected to the upper end cover, which is connected to the vehicle body; the lower cylinder is fixedly connected to the lower end cover, which is connected to the vehicle body; and a mechanical spring is arranged between the upper end cover and the lower end cover.

3. The high-efficiency energy-feeding variable damping electromagnetic suspension structure according to claim 2 is characterized in that: An upper rubber gasket is arranged on the lower cylinder.

4. The high-efficiency energy-feeding variable damping electromagnetic suspension structure according to claim 3 is characterized in that: A lower rubber gasket is arranged on the upper cylinder.

5. The high-efficiency energy-feeding variable damping electromagnetic suspension structure according to claim 1 is characterized in that: The cylindrical winding is connected to a second line, and the second line is connected to a vehicle battery.

6. The high-efficiency energy-feeding variable damping electromagnetic suspension structure according to claim 5 is characterized in that: The first line is connected to the second line, and the second line is connected to the vehicle battery.

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