Encoder based on economical security performance is high

The utility model discloses an encoder based on economical security performance is high, including the protection casing, protection housing face is equipped with the trip protections switch, protection casing one side is equipped with heat dissipation mechanism, the bottom of protection casing is equipped with the support base, the internal rotary supporting rod that is equipped with of protective housing, the last cover of rotary supporting rod is equipped with the code wheel, the top of code wheel is equipped with the fender dish, the top of fender dish is equipped with the optical detection board. Beneficial effect: protecting through the protection casing, having improved the protection to the switch, the electrical property protection is carried out through the trip protections switch to effect that improve to use, carries out timely cutting off to the problem of power, guarantees the safety protection of switch, has improved the stability in use of switch, and carries out timelyheat dissipation through