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Automatic energy-saving control system and method for exhaust fan based on infrared pyroelectric sensor

A sensor, infrared heat technology, used in pump control, machine/engine, non-variable-capacity pumps, etc., to save energy, extend service life, and improve quality of life

Inactive Publication Date: 2017-05-24
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming to solve the problem that the exhaust fan can be automatically turned on when people go to the toilet, and the exhaust fan can be turned off after a period of delay when people leave the toilet.

Method used

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  • Automatic energy-saving control system and method for exhaust fan based on infrared pyroelectric sensor
  • Automatic energy-saving control system and method for exhaust fan based on infrared pyroelectric sensor

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Embodiment Construction

[0009] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0010] Such as figure 1 As shown, the exhaust fan automatic energy-saving control system based on the infrared pyrosensor, which includes an AC power supply, a step-down rectification and voltage stabilization circuit, an infrared pyrosensor, an electronic delay circuit, a thyristor trigger circuit, a solid state relay and an exhaust fan; Among them, the AC power supply is respectively connected to the input end of the step-down rectification and stabilization circuit and the solid state relay; the output ends of the step-down rectification and stabilization circuit are respectively connected to the input ends of the infrared pyroelectric sensor, the electronic delay circuit and the thyristor trigger circuit; The output end of the release s...

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Abstract

The invention discloses an automatic energy-saving control system and method for an exhaust fan based on an infrared pyroelectric sensor. The method is characterized by being a control method which integrates an infrared pyroelectric sensor technology, an electronic timing (delay) technology, a thyristor trigger technology and a solid relay taking a two-way thyristor as a core to control an alternating-current power supply to automatically switch on and off the exhaust fan, and belongs to an energy-saving control technology that a household toilet automatically switches on the exhaust fan to exhaust air, and automatically delays to stop. When the infrared pyroelectric sensor detects that people is in a toilet, a trigger circuit triggers the solid relay taking the two-way thyristor as the core to automatically switch on the exhaust fan to exhaust air; when people leaves, a delay circuit performs delay control, so that the trigger circuit continuously triggers the solid relay taking the two-way thyristor as the core, and the exhaust fan is switched off after being delayed by certain time (for example 1-2 minutes which can be set through the delay circuit) to enter a new trigger standby state.

Description

technical field [0001] The invention relates to an automatic energy-saving control system and method for an exhaust fan based on an infrared pyrosensor. Background technique [0002] The exhaust fan is an indispensable part of the modern bathroom. It can conveniently and effectively realize the gas circulation and exchange in the bathroom, realize the air circulation and eliminate the peculiar smell in the relatively narrow space, and make outstanding contributions to improving the quality of life of modern people, bringing material And spiritual double enjoyment. However, most of the existing traditional exhaust fans use manual switches to turn on and off. Many times people forget to turn off the switch, which causes energy waste; Shows the limitations of conventional exhaust systems. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and aims to solve the problem that the exhaust fan can be automati...

Claims

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Application Information

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IPC IPC(8): F04D27/00
CPCF04D27/00
Inventor 陈贵陈秀丽唐巧林黄康韦铖张鹏冯胤翔
Owner SOUTHWEST PETROLEUM UNIV
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