Patent ID: 8382505

Claim:
An arc-preventing apparatus for preventing a separate cord-type hair dryer from being damaged by an arc, the arc-preventing apparatus comprising: a male connector having a first stopping groove and a second stopping groove; a female connector housing having an elastic piece formed in one side thereof and an opening formed in the other side thereof, in which the elastic piece is expanded as the male connector is inserted and returned as the male connector is released, in which a stopping protrusion is formed in the elastic piece; a stopper being formed in one side of the female connector which is installed in a power contact unit of the main body of the hair dryer, and protruded or retracted by a first elastic body; and a rod being inserted into a rotation shaft formed in the side opposite to the stopper, wherein the rod rotates on the rotation shaft by the predetermined angle along a second elastic body and a guide groove as an on/off switch of the hair dryer is moved down, while being biased the elastic force of the second elastic body, in which one end of the rod is inserted into and released from the opening, and wherein the first stopping groove and the second stopping groove are coupled to the stopping protrusion formed in one end of the rod and the stopper, respectively, and wherein the separate cord-type hair dryer is damaged by the arc when the male connector formed at one end of a separate-type power source cord is disconnected from the female connector installed in the main body of the hair dryer under a load condition, and wherein the arc-preventing apparatus is installed in the power contact unit of the hair dryer, and the male and the female connector are fixed or released by the on/off switch of the hair dryer.