Vibration damping device for unmanned vehicle controllers

Abstract

A vibration damping device for an unmanned vehicle controller includes a rigid base, a controller base, and a plurality of elastic cantilever arms. The rigid base has an installation area, the controller base is located in the installation area and can accommodate an unmanned vehicle controller. The elastic cantilever arms are spaced around the controller base and connected between the controller base and the rigid base. The controller base has a damping interface and at least one spring sandwiched between opposing first and second plates. This invention forms a vibration damping structure that combines elastic support, damping energy dissipation, and spring vibration reduction. When mounted on an unmanned vehicle with a rigid base, it can reduce the interference of external vibrations on the unmanned vehicle controller.

Claims

1. A vibration damping device for an unmanned vehicle controller, comprising: A rigid foundation having an installation area; a controller base located in the installation area and spaced apart from the rigid foundation, the controller base for mounting an unmanned vehicle controller and including a first plate, a second plate and a vibration damping assembly; the vibration damping assembly including a damping interface and at least one spring, the damping interface including at least one damping material layer, and the damping interface and the at least one spring being spaced apart between the first plate and the second plate; and a plurality of elastic cantilever arms spaced apart around the controller base and each having a first end and a second end, the first end of each elastic cantilever arm being connected to the rigid foundation, and the second end of each elastic cantilever arm being connected to the controller base.

2. The vibration damping device as claimed in claim 1, wherein each of the elastic cantilever forms a hollow portion, and each hollow portion extends from the corresponding first end toward the corresponding second end.

3. The vibration damping device as claimed in claim 2, wherein the rigid base is an annular body, the mounting area is formed by the rigid base, the controller base is located in the center of the mounting area, and at least one of the first plate and the second plate is a metal plate.

4. The vibration damping device as described in claim 3, wherein the first plate and the second plate are polygonal plates disposed opposite to each other, the first plate having at least three first corner portions, and the second plate having at least three second corner portions; a first through hole is formed in each of the first corner portions, and a second through hole is formed in each of the second corner portions, each of the first through holes being opposite to the corresponding second through hole; the controller base includes a plurality of connectors, each connector being disposed through the corresponding first through hole and the corresponding second through hole; the at least one spring includes a plurality of springs, each spring being sleeved on the corresponding connector and abutting against the periphery of the corresponding first through hole and the periphery of the corresponding second through hole at both ends.

5. The vibration damping device as claimed in claim 4, wherein the damping interface is sandwiched between a first intermediate portion of the first plate and a second intermediate portion of the second plate, wherein the first intermediate portion is the area of ​​the first plate located within the first corner portions, and the second intermediate portion is the area of ​​the second plate located within the second corner portions; each connector has a rod portion, each rod portion passing through a corresponding first through hole and a corresponding second through hole; the second end of each elastic cantilever has a sleeve hole, each sleeve hole being fitted onto the corresponding rod portion.

6. The vibration damping device as described in claim 5, wherein the controller base includes a plurality of first connector seats and a plurality of second connector seats; each first connector seat abuts against a surface of a corresponding first corner portion away from a corresponding second corner portion, and each first connector seat is provided with a first connecting hole, each first connecting hole communicating with a corresponding first through hole; each second connector seat abuts against a surface of a corresponding second corner portion away from a corresponding first corner portion, and each second connector seat is provided with a second connecting hole, each second connecting hole communicating with a corresponding second through hole; each rod portion passes through a corresponding first connecting hole, a corresponding first through hole, a corresponding second through hole, a corresponding second connecting hole, and a corresponding sleeve hole.

7. The vibration damping device as claimed in claim 6, wherein each of the second ends abuts against the surface of the corresponding second connector seat away from the second plate; each connector includes a bolt and a nut, each bolt has a head, each shank is a screw and connected to the corresponding head, each shank extends through the corresponding sleeve hole, and each nut is screwed into the portion of the corresponding shank that extends through the corresponding sleeve hole.

8. The vibration damping device as claimed in claim 7, wherein the head of each bolt abuts against the corresponding first connector seat, and each nut is screwed into the corresponding rod portion and abuts against the corresponding second end portion, such that the corresponding first connector seat, the corresponding first corner portion, the corresponding second corner portion, the corresponding second connector seat and the corresponding second end portion are clamped between the corresponding head and the corresponding nut, and the first plate and the second plate are clamped together with a predetermined pressure at the damping interface.

9. The vibration damping device as claimed in claim 6, wherein a first fastening portion is formed by protruding from the edge of each of the first connecting seats toward the corresponding second corner portion, and each first fastening portion fastens to the edge of the corresponding first corner portion; and a second fastening portion is formed by protruding from the edge of each of the second connecting seats toward the corresponding first corner portion, and each second fastening portion fastens to the edge of the corresponding second corner portion.

10. The vibration damping device as claimed in claim 1, wherein the damping interface comprises a plurality of damping material layers having different damping coefficients, elastic moduli, or densities; each elastic cantilever extends from the first end to the second end along an arcuate extension path, and the width of each elastic cantilever in a local tangential direction perpendicular to the arcuate extension path gradually decreases from the first end to the second end.

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