Pyroelectric infrared automatic hand drier

A technology of pyro-infrared and hand dryers, applied in the electronic field, can solve the problems of using many electrical components, high failure rate, complex control circuit, etc., and achieve the effect of fewer electrical components, low failure rate and simple control circuit

Inactive Publication Date: 2017-02-01
GUANGXI UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pyro-infrared automatic hand dryer to solve the problems that the conventional infrared induction circui

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pyroelectric infrared automatic hand drier

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] The present invention will be further described below in conjunction with the drawings.

[0013] Such as figure 1 As shown, the circuit of the pyro-infrared automatic hand dryer of the present invention adopts 220V mains voltage transformed by transformer T1 and full-wave rectification by rectifier bridge D1~D4, followed by filtering by capacitor C1, three-terminal regulator 7806 for voltage stabilization, and capacitor After C2 filtering, a DC 6V power supply is obtained to supply power to the infrared induction control circuit of the subsequent stage.

[0014] The infrared induction control circuit is constructed using the human body pyroelectric infrared sensor SD02 module and the time base circuit NE555 chip. The 6V power supply is connected to the 1-pin power input terminal of the SD02 module, the 3-pin ground terminal of the SD02 module is grounded, and the 2-pin output terminal is connected The positive pole of capacitor C3 and one end of resistor R1, the negative pol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a pyroelectric infrared automatic hand drier. A circuit of the pyroelectric infrared automatic hand drier is provided with an infrared induction control circuit; the infrared induction control circuit is constructed by use of a human body pyroelectric infrared sensor SD02 module and a time-base circuit NE555 chip; the human body pyroelectric infrared sensor is used for inducing hands so as to control the output state of the NE555 chip; the output of the NE555 chip is utilized to control actuation and release of a control relay K so as to control the start and stop of operation of a PTC heater and a fan motor M. Compared with a hand drier adopting a conventional infrared induction circuit, the pyroelectric infrared automatic hand drier is capable of directly inducing pyroelectricity infrared rays of a human body, dispenses with an infrared emission device and an infrared receiving device, is free from obstruction of obstacles and influence of other light rays, and is stable in working performance; furthermore, the hand drier provided by the invention is less in used electric elements, simple in control circuit, low in failure rate and worthy of popularization.

Description

technical field [0001] The invention relates to a hand dryer, in particular to a thermal release infrared automatic hand dryer, which belongs to the field of electronic technology. Background technique [0002] In public places such as schools, airports, stations, hotels, stadiums, etc., people often do not have suitable towels to wipe their hands after washing their hands. The wet hands can only be dried as much as possible or wiped on the clothes. It is unhygienic to set up public towels. Therefore, there are automatic hand dryers specially equipped for public places on the market. After washing your hands, put your hands under the air outlet of the automatic hand dryer, and the automatic hand dryer will automatically send out comfortable cold or hot air to dry your hands quickly, and when your hands leave the air outlet of the automatic hand dryer, it will It also automatically stops the wind and shuts down, which is very convenient. In order to realize the above-mentio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A47K10/48H03K17/955
CPCA47K10/48H03K17/955
Inventor 龙邹
Owner GUANGXI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap