Magnetic liquid sealing device having heat conductive rod and heat dissipating jacket

A magnetic liquid sealing device having a heat conductive rod and a heat dissipating jacket, comprising:

• a shaft casing defining a shaft chamber therein;
• a rotating shaft rotatably provided in the shaft chamber, and extending from one end of the shaft chamber to the other end of the shaft chamber;
• two bearings individually fitted over the rotating shaft;
• two pole shoes individually fitted over the rotating shaft and located between the two bearings, magnetic liquid being absorbed between an inner peripheral surface of each pole shoe and an outer peripheral surface of the rotating shaft, and an outer peripheral surface of each pole shoe having a blind hole extending along a radial direction of the pole shoe;
• and
• a permanent magnet fitted over the rotating shaft and located between the two pole shoes;
• wherein the heat conductive rod is inserted in the blind hole;
• and
• wherein the heat dissipating jacket is fitted over the shaft casing and connected with the heat conductive rod through a connecting member.