A clean bench control circuit

Abstract

The invention relates to a clean bench control circuit. A clean bench comprises a glass door, an ultraviolet lamp, an illuminating lamp and a fan; the clean bench control circuit comprises a microcontroller, a clock circuit, a key module and a liquid crystal display screen and further comprises a function module and a microswitch used for detecting whether the glass door is in a closing state; the function module is connected with the microswitch through an execution module, and the microswitch is connected with an input end of the microcontroller; the function module comprises relays JK5 and JK6 for controlling the glass door, a relay JK3 for controlling the ultraviolet lamp, a relay JK2 for controlling the illuminating lamp and a silicon-controlled switch element for controlling the fan. Interlocking is formed among the glass door, the ultraviolet lamp, the illuminating lamp and the fan, and the problems about air flowing, simultaneous switching on of the ultraviolet lamp and the illuminating lamp and the like due to the fact that radiation of the ultraviolet lamp is produced to a human body and the fan cannot play a role are avoided.

Description

technical field [0001] The invention relates to a purple clean table control circuit, which belongs to the technical field of medical equipment. Background technique [0002] The clean workbench (referred to as "clean bench") is an equipment for creating a local high-clean air environment. The main sterilization and disinfection equipment is a special ultraviolet disinfection lamp. It is widely used in areas that require partial purification, such as laboratories, precision instruments, biopharmaceuticals, photoelectric industry, microbial research, etc. It is the most ideal special equipment for scientific research, pharmaceuticals, medical and health, and electronic optical instruments. At present, the basic control of glass doors, ultraviolet lamps, lighting lamps and fans is mostly opened and closed directly through buttons, regardless of whether the glass doors are closed or whether the ultraviolet lamps, lighting lamps and fans are turned on, resulting in ultraviolet r...

AI Technical Summary

Problems solved by technology

At present, the basic control of glass doors, ultraviolet lamps, lighting lamps and fans is mostly opened and closed directly through buttons, regardless of whether the glass doors are closed or whether the ultraviolet lamps, lighting lamps and fans are turned on, resulting in ultraviolet radiation. , The fan cannot function to achieve air flow, the UV lamp and the lighting lamp are turned on at the same time, etc.

In addition, the current clean bench control circuit is not perfect enough to realize functions such as alarm and data storage

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