Emergency stop switch circuit meeting CE requirements for electric treadmill

Abstract

The invention relates to an emergency stop switch circuit meeting the CE requirements for an electric treadmill, which comprises an emergency stop switch, a first optical coupler, a main relay coil, a diode, a collector, a triode, a safety switch, an MCU1, an MCU2 and a second optical coupler, wherein the emergency stop switch, the first optical coupler and the main relay coil are connected to +12V power supply; the collector of the triode is connected with a cathode of the diode; the safety switch is connected with +5V power supply and the receiving end of the first optical coupler; the MCU1 is connected with the other end of the first optical coupler; the MCU2 is connected with the MCU1; the transmitting end of the second optical coupler is connected with the MCU2, and the receiving end of the second optical coupler is connected between a base electrode of the triode and the ground; a control contact of a main relay is connected with a main circuit of the whole machine; and the MCU1 and the MCU2 are connected with a main control panel and a drive plate respectively. Not only the emergency stop switch circuit and the safety switch are arranged but also the two devices are associated with each other. The invention has the poly-protection function, can guarantee the personal safety under the emergency condition, reduce machine faults and perform maintenance in time, and completely meet the CE requirements, and can be widely popularized and applied in the electric treadmill.

Description

technical field [0001] The invention belongs to the technical field of fitness equipment, and more specifically relates to the design and 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 circuit. Once emergency situations such as machine failure or human accident need to be stopped immediately, they are often unprepared and cause serious consequences. [0003] At present, many electric treadmills on the market have emergency stop switch circuits and safety switches, which can be roughly divided into two types. One can be said to be independent of each other. The emergency stop switch is used to directly disconnect the relay and cut off the main circuit, but it has nothing to do with the microprocessor. The additional safety switch is used to disconnect the action signal of the microprocessor. The other ki...

AI Technical Summary

Problems solved by technology

Most of the electric treadmills mentioned above thus do not comply with CE requirements

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