Magnetic coupling element

The utility model provides a magnetic coupling element which comprises a shell, the shell is of a box-packed structure with an opening in the top, and a magnetizer is connected in the shell in a sliding mode. An elastic piece is fixedly connected between the magnetizer and the bottom of the interior of the shell. A fixing groove is formed in the top of the magnetizer, and a magnetic attraction piece is arranged in the fixing groove. An induction groove is formed in the bottom of the magnetizer; a temperature sensor is clamped in the induction groove; a heat conduction part is arranged between the temperature sensor and the magnetizer; the temperature sensor is externally connected with one end of a wire; the other end of the wire penetrates through the bottom of the shell and is connected with a wiring terminal. According to the utility model, the magnetic attraction piece and the temperature sensor are additionally arranged, and the heat conduction part for temperature detection precision is additionally arr