Squeeze mode giant electrorheological fluid damper

Patent metadata

Field	Value
Publication number	US-11808317-B2
Application number	US-202217893228-A
Country	US
Kind code	B2
Filing date	Aug 23, 2022
Priority date	Aug 24, 2021
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A squeeze mode giant electrorheological fluid damper is disclosed. The squeeze mode giant electrorheological fluid damper comprises a support, a container and a connecting structure, wherein the support comprises a bottom plate, guide shafts and a top plate, the guide shaft is vertically fixed on the bottom plate, and the top plate is slidably arranged on the guide shaft; the container comprises a container body and two spiral spring pieces coaxially arranged in the container body, the container body is fixed on the bottom plate, the bottoms of the two spiral spring pieces are fixed to the bottom of the container, the two spiral spring pieces are not in contact with each other and are spaced by 180°; the top of the connecting structure is fixedly connected with the top plate, and the bottom of the connecting structure is fixedly connected with the tops of the two spiral spring pieces.

First claim

What is claimed is:

1. A squeeze mode giant electrorheological fluid damper, comprising:
a support, the support comprising a bottom plate, guide shafts and a top plate, the guide shafts being vertically fixed on the bottom plate, and the top plate being slidably arranged on the guide shafts; wherein one of the bottom plate and the top plate is used for being connected with a fixed platform, and another one of the bottom plate and the top plate is used for being connected with a load to receive vibration energy;
a container, the container comprising a container body and two spiral spring pieces coaxially arranged in the container body, the container body being fixed on the bottom plate, the bottoms of the two spiral spring pieces being fixed to a bottom of the container, and the two spiral spring pieces being not in contact with each other and being spaced by 180°; wherein the container body is made of an insulating material and used for accommodating an electrorheological fluid with reinforced rheological property; and each of the two spiral spring pieces is made of a conductive material, and the two spiral spring pieces are used for being connected with a positive electrode and a negative electrode respectively to generate an electric field; and
a connecting structure, a top of the connecting structure being fixedly connected with the top plate, a bottom of the connecting structure being fixedly connected with tops of the two spiral spring pieces, and the connecting structure being made of an insulating material.

2. The squeeze mode giant electrorheological fluid damper according to claim 1 , wherein the support further comprises guide shaft supports and linear bearings, the guide shaft supports are fixed on the bottom plate, a bottom of each of the guide shafts is fixed on a corresponding one of the guide shaft supports, the linear bearings are fixed on the top plate, and each of the guide shafts is slidably connected with a corresponding one of the linear bearings.

3. The squeeze mode giant electrorheological fluid damper according to claim 1 , wherein the connecting structure comprises a connecting shaft support, a connecting shaft and a connecting plate, the connecting shaft support is fixed on the top plate, the connecting plate is fixedly connected with tops of the two spiral spring pieces at same time, a top of the connecting shaft is fixedly connected with the connecting shaft support, and a bottom of the connecting shaft is fixedly connected with the connecting plate.

4. The squeeze mode giant electrorheological fluid damper according to claim 1 , wherein the container comprises an upper container cover and a lower container bottom plate, the upper container cover is fixed on the lower container bottom plate, the lower container bottom plate is fixed on the bottom plate, and the connecting structure passes through the upper container cover.

5. The squeeze mode giant electrorheological fluid damper according to claim 4 , wherein each of the bottom plate and the lower container bottom plate is of an integrated structure.

6. The squeeze mode giant electrorheological fluid damper according to claim 4 , wherein a lower surface of the upper container cover is provided with a boss used for being in limited contact with an inner side wall of the lower container bottom plate.

7. The squeeze mode giant electrorheological fluid damper according to claim 4 , wherein a first wire passing hole, a second wire passing hole and a wire passing groove are formed in a bottom of the lower container bottom plate, the first wire passing hole is used for allowing a first wire to pass through, the second wire passing hole is used for allowing a second wire to pass through, and the wire passing groove is used for allowing the first wire and the second wire to be embedded; and the first wire and the second wire are respectively used for connecting the two spiral spring pieces with the positive electrode and the negative electrode of an external power supply.

8. The squeeze mode giant electrorheological fluid damper according to claim 1 , wherein the container body and the connecting structure are both made of polyformaldehyde plastics.

9. The squeeze mode giant electrorheological fluid damper according to claim 1 , wherein each of the two spiral spring pieces is made of copper.

Assignees

• Univ Shanghai

Inventors

• Sun Yi
• Lu Ben
• Pu Huayan
• Wang Min
• Ding Jiheng
• Jia Wenchuan
• Peng Yan
• Luo Jun

Classifications

• F16F13/007 Primary

  the damper being a fluid damper · CPC title

• F16F2222/12

  Fluid damping · CPC title

• F16F2224/02

  solids · CPC title

• F16F2224/0208

  Alloys · CPC title

• F16F2224/043

  electrorheological · CPC title