Abstract: The present invention relates to a brushless motor and especially to a rotor of brushless motor. The rotor of brushless motor includes a front cover, a cylindrical casing and a magnet adhered to the inner face of the cylindrical casing. The cylindrical casing is provided with some grooves on its outside surface. The present invention has made the best of the outside surface of the cylindrical casing of the rotor. In this case, an excellent heat dissipating effect can be achieved without changing the structure of the motor since the flow rate of air and the heat dissipating contact area between the air and the rotor is improved during the rotation.

Abstract: The utility model relates to a anti-slippery Velcro tape, comprising a flexible belt (1) and a hook (2) which is arranged at one end of the flexible belt (1), wherein a male sticky part (12) and a female sticky part (11) are provided on the front side of the flexible belt (1), and a non-slip layer (3) is provided on the back side of the flexible belt (1). In the anti-slippery Velcro tape according to the present utility model, the non-slip layer arranged on the back side of the flexible belt makes it has an anti-slippage function. When bundling items, the friction on the contact surface between the back side of the flexible belt and the items will increase so as to prevent slipping, and the items can then be bundled tightly and firmly, bringing convenience to users.

Abstract: An air-cooled motor is disclosed, comprising a motor shaft, a stator and a rotor which are disposed co-axially, said motor shaft being fitted with a fixed seat for supporting said stator and being operatably connected with said rotor and rotatably connected with said stator, said stator having a coil coupled to conductive wires; further comprising a front cover disposed at the front side of said rotor and having wind channels, wherein a front end portion of said rotor in the proximity of said front cover is provided with an air-inflow disk which has one or more air intake grooves each passing obliquely therethrough to form a windward angle relative to the rotation direction of said rotor; and said motor further comprises an air-exhausting disk which has one or more air outlet grooves each passing obliquely therethrough to form a windward angle relative to the rotation direction of said rotor.