Exercise bike

Abstract

An exercise bike is provided, including a frame, a treading device mounted on the frame, a bike headstock device mounted on the front of the frame and a seat device mounted on the rear of the frame. The treading device includes a belt wheel, two treading rods connected with the belt wheel drive, and two pedals respectively connected to the ends of the two treading rods. The present application also includes a permanent magnet synchronous motor with wheel hub shape, a control circuit and an energy dissipation device. The permanent magnet synchronous motor is electrically connected with the energy dissipation device, the control circuit is electrically connected with the permanent magnet synchronous motor and controls the current passing through the permanent magnet synchronous motor, so as to solve the problem of the poor resistance adjustment effect of the resistance device of the existing exercise bike.

What is claimed is: 
     
         1 . An exercise bike, comprising a frame, a treading device mounted on the frame, a bike headstock device mounted on a front of the frame and a seat device mounted on a rear of the frame, wherein the treading device comprises a belt wheel, two treading rods connected with the belt wheel through the belt wheel shaft for transmission, and two pedals respectively connected to ends of the two treading rods, and further comprises a permanent magnet synchronous motor with wheel hub shape, a control circuit and an energy dissipation device; a rotating shaft of the permanent magnet synchronous motor is installed on the frame through a bearing, the belt wheel is connected with the permanent magnet synchronous motor through a drive belt, the permanent magnet synchronous motor is electrically connected with the energy dissipation device, the control circuit is electrically connected with the permanent magnet synchronous motor and controls current passing through the permanent magnet synchronous motor. 
     
     
         2 . The exercise bike according to  claim 1 , wherein the exercise bike further comprises an inertia wheel, and the inertia wheel is embedded on the permanent magnet synchronous motor. 
     
     
         3 . The exercise bike according to  claim 1 , wherein the energy dissipation device is a power resistor. 
     
     
         4 . The exercise bike according to  claim 1 , wherein the exercise bike further comprises a host computer, and the host computer is connected with the control circuit signal via signals, so as to transmit a resistance control instruction sent from the host computer to the control circuit. 
     
     
         5 . The exercise bike according to  claim 4 , wherein the host computer is a controller set on the handlebar of the bike headstock device, and the resistance is set by the controller. 
     
     
         6 . The exercise bike according to  claim 4 , wherein the host computer is an intelligent terminal, and the intelligent terminal is provided with an application program, and the resistance is set by the application program.