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 invention belongs to the technical field of fitness equipment, and more specifically relates to the design innovation of an emergency stop switch circuit of an electric treadmill that meets CE requirements. Background technique [0002] Most of the traditional electric treadmills are not equipped with an emergency stop switch. Once the emergency situation such as machine failure or human accident needs to be stopped immediately, it is often caught by surprise and leads to serious consequences. At present, electric treadmills entering the European Community must pass CE (European Community) certification and meet CE requirements. However, there are still many domestic electric treadmills that do not meet 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, which can be roughly divided into two methods: mechanical ...

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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