Active control molecular spring vehicle suspension

Abstract

The application discloses an active control type molecular spring vehicle suspension, which comprises a damping cavity, a piston rod, a damping piston, isolation rubber, an electric field module, a molecular spring insulation rubber capsule and a molecular spring metal cavity; the damping cavity is filled with hydraulic oil, and the damping piston generates damping force when reciprocating in the damping cavity; the top of the piston rod is connected with a vehicle frame; the isolation rubber is used for separating the damping cavity from the molecular spring insulation rubber capsule and for insulation; the molecular spring insulation rubber capsule is filled with molecular spring medium and is provided with the electric field module on the inner wall; the molecular spring insulation rubber capsule and the isolation rubber together form an insulation space; the electric field module is used for generating a controllable electric field in the molecular spring insulation rubber capsule; and the molecular spring insulation rubber capsule is arranged on the inner wall of the molecular spring metal cavity. The application is used for a vehicle suspension, and the electric field module can realize active control of the molecular spring stiffness, thereby providing a novel active suspension design scheme.

Description

Technical Field

[0001] This invention relates to a molecular spring suspension configuration that enables active control, belonging to the field of automotive active suspension design technology. Background Technology

[0002] The development of active suspension needs to adapt to the lightweight and integrated requirements of new energy vehicles. Traditional methods for active suspension in electric vehicles mostly employ air springs as the elastic element, adjusting suspension stiffness and vehicle height by inflating and deflating the airbags. However, this approach suffers from significant drawbacks such as complex structure and high cost. Molecular spring suspension is a novel type of suspension. Its hydrophobic microporous metal skeleton material exhibits polarization of its internal molecules under an external electric field. This polarization results in skeleton stiffening, and importantly, the pore size of the material decreases. This change in pore size significantly alters the stiffness characteristics of the molecular spring. Based on this, this invention designs a molecular spring suspension capable of active control. Summary of the Invention

[0003] The purpose of this invention is to provide an active control molecular spring vehicle suspension that enables active control of the vehicle suspension stiffness, which helps to improve the comfort and smoothness of the molecular spring suspension, thereby improving the vehicle's running quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An active control molecular spring vehicle suspension includes a damping cavity, a piston rod, a damping piston, an isolation rubber, an electric field module, a molecular spring insulating rubber bladder, and a molecular spring metal cavity. The damping cavity is filled with hydraulic oil, and the damping piston generates damping force when it reciprocates within the damping cavity. The top of the piston rod is connected to the vehicle body or frame, and the bottom is connected to the damping piston. The isolation rubber is disposed between the damping cavity and the molecular spring metal cavity, serving both to separate the damping cavity from the molecular spring insulating rubber bladder and to provide insulation. The molecular spring insulating rubber bladder is filled with a molecular spring medium, and an electric field module is disposed on its inner wall. The molecular spring insulating rubber bladder and the isolation rubber together form an insulating space to prevent leakage of the electric field module. The electric field module includes a pair of arc-shaped positive and negative metal plates, which generate a controllable electric field within the molecular spring insulating rubber bladder, thereby achieving active control of the molecular spring stiffness by changing the stiffness of the molecular spring. The molecular spring insulating rubber bladder is disposed on the inner wall of the molecular spring metal cavity. The damping cavity, the isolation rubber, the molecular spring insulating rubber bladder, and the molecular spring metal cavity are integrally connected.

[0006] Furthermore, damping adjustment plates are provided on both sides of the damping piston, and the damping piston is provided with normally open damping holes and normally closed damping holes. The damping adjustment plates cover the normally closed damping holes but do not cover the normally open damping holes. The damping adjustment plates are used to adjust the magnitude of the damping force.

[0007] Furthermore, the piston rod extends into the damping cavity from the top, and a sealing ring is provided on the contact surface between the piston rod and the damping cavity.

[0008] Furthermore, the damping adjustment plate includes an upper damping adjustment plate and a lower damping adjustment plate, which are located on the upper and lower sides of the damping piston, respectively, and are used to limit the flow of the normally closed damping orifice of the damping piston.

[0009] Furthermore, the insulating rubber is a circular rubber sheet with through holes around its perimeter, used for sealing the hydraulic oil in the damping cavity and for insulating the electric field module.

[0010] Furthermore, the electric field module consists of a pair of arc-shaped positive and negative electrode plates, each with a connection point for connecting to an external DC power supply, and each electrode plate is tightly attached to the inner wall of the molecular spring insulating rubber bladder.

[0011] Furthermore, the molecular spring insulating rubber bladder is an open cylindrical rubber shell with a through hole on the outer protrusion at the top of the shell.

[0012] Furthermore, the molecular spring metal cavity is an open cylindrical metal shell with a through hole on the outer protrusion at the top of the shell, and the interior of the molecular spring metal cavity is used to install the molecular spring insulating rubber bladder.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention is used in automotive suspension systems. The electric field module enables active control of the molecular spring stiffness, thereby providing a novel active suspension design. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a cross-sectional view of the damping cavity;

[0017] Figure 3 This is a cross-sectional view of the piston rod;

[0018] Figure 4 This is a cross-sectional view of the upper damping adjustment plate;

[0019] Figure 5 This is a cross-sectional view of the damping piston;

[0020] Figure 6 This is a cross-sectional view of the lower damping adjustment plate;

[0021] Figure 7 This is a cross-sectional view of the rubber separator.

[0022] Figure 8 This is an isometric view of the electric field module;

[0023] Figure 9 This is a cross-sectional view of the molecular spring insulating rubber bladder;

[0024] Figure 10 This is a cross-sectional view of the metal cavity of the molecular spring;

[0025] In the diagram, 101-damping cavity; 102-through hole at the bottom edge of the damping cavity; 103-center boss at the top of the damping cavity; 104-side sealing groove of the center through hole of the damping cavity; 105-center through hole of the damping cavity; 201-piston rod; 202-thread at the top of the piston rod; 203-thin shaft at the bottom of the piston rod; 3-sealing ring; 401-upper damping adjusting plate; 402-center through hole of the upper damping adjusting plate; 501-damping piston; 502-normally open damping hole; 503-normally closed damping hole; 5 04-Damping piston center through hole; 601-Lower damping adjustment plate; 602-Lower damping adjustment plate center through hole; 7-Nut; 801-Isolation rubber; 802-Isolation rubber edge through hole; 901-Positive electrode; 902-Positive electrode connection point; 903-Negative electrode connection point; 904-Negative electrode; 1001-Molecular spring insulating rubber bladder; 1002-Molecular spring insulating rubber bladder edge through hole; 1101-Molecular spring metal cavity; 1102-Molecular spring metal cavity edge through hole. Detailed Implementation

[0026] The invention will now be further explained with reference to the accompanying drawings.

[0027] like Figure 1The present invention illustrates an active control molecular spring vehicle suspension, comprising a damping cavity, a piston rod, a damping adjustment plate, a damping piston, an isolation rubber, an electric field module, a molecular spring insulating rubber bladder, and a molecular spring metal cavity. The damping cavity is filled with hydraulic oil, and the damping piston generates damping force when it reciprocates within the cavity. The top of the piston rod is connected to the vehicle body (or frame). The damping adjustment plate is used to adjust the magnitude of the damping force. The insulating rubber serves two purposes: separating the damping cavity from the molecular spring insulating rubber bladder and providing insulation. The electric field module generates a controllable electric field within the molecular spring insulating rubber bladder to change the stiffness of the molecular spring, thereby achieving active control of the molecular spring stiffness. The molecular spring insulating rubber bladder is filled with the molecular spring medium, and the electric field module is installed on its inner wall. The molecular spring insulating rubber bladder and the insulating rubber together form an insulating space to prevent leakage of the electric field module. The electric field module consists of a pair of arc-shaped positive and negative metal plates. When a DC power supply is connected to the positive and negative electrodes of the electric field module, an electric field is generated between the positive and negative metal plates. The electric field strength is adjusted by changing the voltage between the positive and negative electrodes. The molecular spring metal cavity is a cylindrical shell with a raised edge, and the molecular spring insulating rubber bladder is located within it.

[0028] like Figure 2 As shown, the damping cavity 101 is a stepped cylindrical shell. The bottom boss of the damping cavity 101 is provided with a circumferentially distributed damping cavity bottom edge through hole 102. The top central boss 103 of the damping cavity is provided with a damping cavity central through hole 105. The side of the central through hole is provided with a damping cavity central through hole side sealing groove 104. A sealing ring 3 is installed in the damping cavity central through hole side sealing groove 104. The damping cavity 101 is filled with hydraulic oil.

[0029] like Figure 3 As shown, the top of the piston rod 201 is connected to the vehicle body (or frame) via the piston rod top thread 202, and the bottom thin shaft 203 of the piston rod is connected to the damping piston 501, the upper damping adjusting plate 401, and the lower damping adjusting plate 601 via the nut 7.

[0030] like Figure 4 As shown, the upper damping adjustment plate 401 is located on the upper side of the damping piston 501 and is used to limit the flow of the normally closed damping orifice of the damping piston. The upper damping adjustment plate 401 is provided with a central through hole 402.

[0031] like Figure 5 As shown, the damping piston 501 is installed at the thin shaft 203 at the bottom of the piston rod. The damping piston 501 is provided with a damping piston center through hole 504, a normally closed damping hole 503 and a normally open damping hole 502 in sequence from the inside to the outside. The normally closed damping hole 503 is covered by the upper damping adjustment plate 401 and the lower damping adjustment plate 601 on the upper and lower sides, respectively.

[0032] like Figure 6As shown, the lower damping adjustment plate 601 is located below the damping piston 501 and is used to limit the flow of the normally closed damping orifice of the damping piston. The lower damping adjustment plate 601 is provided with a central through hole 602.

[0033] like Figure 7 As shown, the isolation rubber 801 is a circular rubber sheet with through holes 802 around its perimeter, used for sealing the hydraulic oil in the damping cavity 101 and for insulating the electric field module (including positive electrode 901, positive terminal 902, negative terminal 903, and negative electrode 904).

[0034] like Figure 8 As shown, the electric field module consists of a pair of arc-shaped positive and negative electrode plates (including positive electrode 901 and negative electrode 904). Each of the positive and negative electrode plates is provided with a connection point for connecting to an external DC power supply (including positive connection point 902 and negative connection point 903). The positive and negative electrode plates are each in close contact with the inner wall of the molecular spring insulating rubber bladder 1001.

[0035] like Figure 9 As shown, the molecular spring insulating rubber bladder 1001 is an open cylindrical rubber shell. The outer protrusion at the top of the shell is provided with a through hole 1002 on the edge of the molecular spring insulating rubber bladder. The molecular spring insulating rubber bladder 1001 is filled with molecular spring medium. The molecular spring insulating rubber bladder 1001 and the isolation rubber 801 together form an insulating space, which can prevent leakage of the electric field module.

[0036] like Figure 10 As shown, the molecular spring metal cavity 1101 is an open cylindrical metal shell. The outer protrusion at the top of the shell is provided with a through hole 1102 at the edge of the molecular spring metal cavity. The interior of the molecular spring metal cavity 1101 is used to install the molecular spring insulating rubber bladder 1001.

[0037] In summary, this invention discloses an active control molecular spring vehicle suspension, comprising a damping cavity, a piston rod, a damping adjustment plate, a damping piston, an isolation rubber, an electric field module, a molecular spring insulating rubber bladder, and a molecular spring metal cavity. The damping cavity is filled with hydraulic oil, and the damping piston generates damping force when it reciprocates within the cavity. The top of the piston rod is connected to the vehicle body (or frame). The damping adjustment plate is used to adjust the magnitude of the damping force. The insulating rubber serves two purposes: separating the damping cavity from the molecular spring insulating rubber bladder and providing insulation. The electric field module generates a controllable electric field within the molecular spring insulating rubber bladder to change the stiffness of the molecular spring, thereby achieving active control of the molecular spring stiffness. The molecular spring insulating rubber bladder is filled with the molecular spring medium, and the electric field module is installed on its inner wall. The molecular spring insulating rubber bladder and the insulating rubber together form an insulating space to prevent leakage of the electric field module. The electric field module consists of a pair of arc-shaped positive and negative metal plates. When a DC power supply is connected to the positive and negative electrodes of the electric field module, an electric field is generated between the positive and negative metal plates. The electric field strength is adjusted by changing the voltage between the positive and negative electrodes. The molecular spring metal cavity is a cylindrical shell with a raised edge, and the molecular spring insulating rubber bladder is located within it. This invention is used in automotive suspension systems. The electric field module enables active control of the molecular spring stiffness, thereby providing a novel active suspension design.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An active control molecular spring vehicle suspension, characterized in that: It includes a damping cavity, piston rod, damping piston, isolation rubber, electric field module, molecular spring insulating rubber bladder, and molecular spring metal cavity; The damping chamber is filled with hydraulic oil, and the damping piston generates damping force when it reciprocates within the damping chamber. The piston rod is connected to the vehicle body or frame at the top and to the damping piston at the bottom. An insulating rubber is positioned between the damping cavity and the molecular spring metal cavity, serving both to separate the damping cavity from the molecular spring insulating rubber bladder and to provide insulation. The molecular spring insulating rubber bladder is filled with the molecular spring medium, and an electric field module is installed on its inner wall. The molecular spring insulating rubber bladder and the insulating rubber together form an insulating space to prevent leakage from the electric field module. The electric field module includes a pair of arc-shaped positive and negative metal plates. The electric field module generates a controllable electric field within the molecular spring insulating rubber bladder, allowing for active control of the molecular spring stiffness by changing its stiffness. The molecular spring insulating rubber bladder is positioned on the inner wall of the molecular spring metal cavity. The damping cavity, insulating rubber, molecular spring insulating rubber bladder, and molecular spring metal cavity are rigidly connected as a single unit.

2. The active control molecular spring vehicle suspension according to claim 1, characterized in that: The damping piston is provided with damping adjustment plates on both sides. The damping piston is provided with normally open damping holes and normally closed damping holes. The damping adjustment plates cover the normally closed damping holes but do not cover the normally open damping holes. The damping adjustment plates are used to adjust the magnitude of the damping force.

3. The active control molecular spring vehicle suspension according to claim 1, characterized in that: The piston rod extends into the damping cavity from the top, and a sealing ring is provided on the contact surface between the piston rod and the damping cavity.

4. The active control molecular spring vehicle suspension according to claim 2, characterized in that: The damping adjustment plate includes an upper damping adjustment plate and a lower damping adjustment plate, which are located on the upper and lower sides of the damping piston, respectively, and are used to limit the flow of the normally closed damping orifice of the damping piston.

5. The active control molecular spring vehicle suspension according to claim 1, characterized in that: The insulating rubber is a circular rubber sheet with through holes around its perimeter, used for sealing the hydraulic oil in the damping cavity and for insulating the electric field module.

6. The active control molecular spring vehicle suspension according to claim 1, characterized in that: The electric field module consists of a pair of arc-shaped positive and negative electrode plates, each with a connection point for connecting to an external DC power supply. The positive and negative electrode plates are each in close contact with the inner wall of the molecular spring insulating rubber bladder.

7. The active control molecular spring vehicle suspension according to claim 1, characterized in that: The molecular spring insulating rubber bladder is an open cylindrical rubber shell with a through hole on the outer protrusion at the top of the shell.

8. The active control molecular spring vehicle suspension according to claim 1, characterized in that: The molecular spring metal cavity is an open cylindrical metal shell with a through hole on the outer protrusion at the top of the shell. The interior of the molecular spring metal cavity is used to install the molecular spring insulating rubber bladder.

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