Magneto-rheological damper with multiple external round-hole damping channels

The utility model discloses a magneto-rheological damper with multiple external round-hole damping channels, and relates to the technical field of devices for adjusting damping properties by changing fluid vicidity. The damper comprises the external round-hole damping channels, a magneto-rheological fluid cavity, an energy storage cavity, a piston assembly and electromagnetic coil assemblies. Compared with a conventional magneto-rheological damper of a ring valve structure, the evenly-distributed round-hole damping channels are arranged outside the magneto-rheological fluid cavity through the structure, the magneto-rheological fluid through flow area is large, the advantage of being small in damping force under the zero magnetic field condition is achieved, meanwhile, the damping force under the condition of the action of a magnetic field can be improved by arranging the electromagnetic coil assemblies, and therefore the advantage of being wide in damping force adjusting range is achieved.