Emergency stop switching circuit in accord with CE (Communate Europpene) requirements of electric treadmill

Abstract

The invention relates to an emergency stop switching circuit in accord with CE (Communate Europpene) requirements of an electric treadmill and belongs to fitness equipment. The emergency stop switching circuit comprises an emergency stop signal trigger amplifying circuit, a microprocessor controlling circuit, a GBT modular circuit and a motor, wherein the emergency stop signal trigger amplifying circuit comprises an emergency stop button, a resistance-capacitance filter circuit, a coupling resistor, a triode and an optical coupler; the base of the triode is connected with the output end of the coupling resistor; the input end of the optical coupler is connected with the collector of the triode; and the output end of the optical coupler is connected with a reset terminal of a microprocessor. In the invention, a behindhand mechanical way is abandoned and a micro processing circuit way is adopted; the emergency stop switching circuit is directly controlled by the microprocessor, electricshock hazards can be avoided, the working life and reliability can be enhanced and the production cost can be reduced; the personal safety in emergency can be guaranteed and the machine faults can bereduced to completely accord with the CE requirements; and therefore, the emergency stop switching circuit can be widely applied to all kinds of treadmills.

Description

Technical field [0001] The present invention belongs to the field of fitness equipment technology, and it is more clear about design innovation involving electric treadmills to meet the CE requirements. Background technique [0002] Most of the traditional electric treadmills have no emergency stop switch. Once emergency conditions such as machine failure or human accidents need to be stopped immediately, it is often caught off guard by causing serious consequences.Electric treadmills currently entering the European community need to pass CE (European Community) certification and meet the CE requirements.There are still many domestic electric treadmills that do not meet the CE requirements. [0003] In recent years, many domestic electric treadmills have met the CE safety certification requirements.However, its emergency stop switch is generally mechanical method, which can be generally divided into two ways: mechanical buttons directly control the strong power input and use wea...

AI Technical Summary

Problems solved by technology

However, the first method directly controls the strong current input, which is prone to electric shock accidents; the second method uses mechanical-electrical relays, and its contacts have short mechanical life, high material costs, and poor reliability.

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