A single-stage excitation unit with external magneto-rheological damping

Abstract

The invention provides an external magneto-rheological seat damper single-stage excitation unit which is placed outside a magneto-rheological damping cylinder. The excitation unit and the magneto-rheological damping cylinder are connected together through a quick connector and a pneumatic pipe. The external magneto-rheological seat damper single-stage excitation unit comprises a copper sleeve 1, a coil 2, an H-shaped magnetic core 3, an end cover 4, a quick connector threaded hole 5 and a through hole flow channel 6. The external magneto-rheological seat damper single-stage excitation unit avoids the shortcomings that manufacturing cost is high as a deep hole for leading wires needs to be machined on a piston rod, and the number of turns of a wound coil is limited by internal space. The size and the flow channel of the excitation coil can be freely designed, and the limit of the piston rod for design of a magnetic path and the flow channel of the excitation coil is eliminated.

Description

technical field [0001] The invention relates to a single-stage excitation unit of an external magnetorheological seat damper, in particular to adopting a split design, placing the excitation unit outside the cylinder body of the magnetorheological damper, and using a soft magnetic alloy material as the magnetic core The utility model relates to a single-stage excitation unit for a high-temperature-resistant enameled wire wound coil, which belongs to the field of manufacturing technology. Background technique [0002] Magneto-rheological fluid is an intelligent and controllable fluid material with excellent performance. The magnetorheological seat damper is a device with controllable damping under the action of a magnetic field by using the characteristics of magnetorheological fluid. It has broad application prospects in aviation, automobile and other fields . Compared with the traditional automobile damping system, the magneto-rheological damper can automatically adjust th...

AI Technical Summary

Problems solved by technology

At present, the magneto-rheological fluid seat damper adopts an integrated structure in which the excitation coil is wound on the piston of the cylinder body. The wires are routed in it, and the manufacturing cost is relatively high

At the same time, the number of turns of the wound coil is limited under the constraints of the internal space. In addition, because of the limitation of the piston rod, the magnetic circuit and flow channel design of the excitation coil are restricted. Usually, the magnetic circuit can only be designed at the end of the piston away from the piston rod. and runner design, only half of the effective magnetic field is utilized

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