CN105770959A - Control system of ultraviolet LED array based on single chip microcomputer - Google Patents
Control system of ultraviolet LED array based on single chip microcomputer Download PDFInfo
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- CN105770959A CN105770959A CN201610236890.5A CN201610236890A CN105770959A CN 105770959 A CN105770959 A CN 105770959A CN 201610236890 A CN201610236890 A CN 201610236890A CN 105770959 A CN105770959 A CN 105770959A
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- Prior art keywords
- led
- chip microcomputer
- single chip
- array
- ultraviolet led
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/11—Apparatus for controlling air treatment
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Led Device Packages (AREA)
Abstract
A control system of an ultraviolet LED array based on a single chip microcomputer comprises a circuit substrate, an ultraviolet LED luminous source, an ultraviolet ray filter lens, an LED drive circuit, an MCU controller, a single chip microcomputer control unit, a heat dissipation unit and an active catalyst layer.An 89C52 series single chip microcomputer is adopted in the single chip microcomputer control unit, and the combination of a PIC series single chip microcomputer and an output port extended chip can also be adopted.A 5V power supply is adopted for the single chip microcomputer control unit, a 4*4 array keyboard is adopted for inputting, the keyboard comprises the number keys of 0 to 9, a reset key and function keys, and a four-bit LED digital tube is used for input displaying.An additional 8-bit data bus is used for gate control over the LED array, the work LED number is set through the keyboard, and the single chip microcomputer controls a gating unit to work.
Description
Technical field
The present invention relates to the method for designing of the control system of a kind of SCM Based ultraviolet LED array.
Background technology
Ultraviolet has been widely used in every field as important sterilization means.And traditional ultraviolet mercury lamp
Response speed is slow, power consumption height, and drive circuit burden is big, heating height, and because volume, the problem of power
It is difficult to make control array, affects control efficiency.
Ultraviolet LED refers generally to the centre of luminescence wavelength LED at below 405nm, and LED industry generally will be sent out
Optical wavelength is referred to as near ultraviolet LED when being positioned at 355～405nm, and is referred to as deep ultraviolet LED when being shorter than 300nm.
The energy gap using most material GaN at present in the research and production of LED is 3.4eV, corresponding
Emission wavelength is 365nm, just near ultraviolet band scope, therefore, typically uses near ultraviolet LED
GaN is as base material.And deep ultraviolet LED expands band gap by adding Al in base material GaN, it is thus achieved that shorter
Emission wavelength.According to more detailed wave band and purposes, ultraviolet LED can be divided into following three classes: (1) UVA:
Wavelength, between 315～405nm, is mainly used in solidification, medical treatment, printing, photoetching, currency examination and photocatalysis etc.；
(2) UVB: wavelength, between 280～315nm, is mainly used in medical treatment, bioanalysis (such as DNA) etc.；
(3) UVC: wavelength is less than 280nm, is mainly used in sterilize (water, air cleaning) and component analysis etc..
Although ultraviolet LED is existing at present is applied to the fields such as sterilization, sterilization on a small quantity, but based on Based Intelligent Control system
There is not been reported for the composite disinfecting taste removal integrated apparatus of many LED array of system.
Similar with ultraviolet LED, the catalytic oxidation technologies such as photocatalyst also has obtained extensively should in air purification field
With, the air purifying process of catalysis oxidation is combined by the present invention with ultraviolet LED decontamination system.
Summary of the invention
It is an object of the invention to utilize high-energy source efficiency LED luminous source based on, it is provided that a kind of intelligence
Hybrid system controlled, that sterilization taste removal is effective.
For solve above-mentioned technical problem, the present invention by the following technical solutions:
A kind of sterilization deodorizing device based on single-chip microcomputer and ultraviolet LED array, including circuit substrate, ultraviolet LED
Luminous source, ultraviolet ray filter, LED drive circuit, MCU controller, single chip control unit, heat radiation
Unit, active catalyst layer；Between described circuit substrate uses double-side copper foil construction in order to heat radiation and reserved etc.
Away from LED component array of receptacles, described LED component jack is filled with heat-conducting, described heat-conducting
Contacting with the Copper Foil of circuit board, described Copper Foil contacts with heat-sink unit, it is achieved the rapid release of heat；Single
Sheet machine control unit realizes the selection of ultraviolet LED array by the way of address strobe, passes through charactron simultaneously
The quantity of the display ultraviolet LED of work now；LED drive circuit, the quantity of MCU controller and LED
The quantity of luminous source is identical, gates also by single-chip microcomputer；Described heat-sink unit includes fin, radiation air
Fan, described fin surface is coated with the composite coating of nano titanium oxide and activated alumina, fin
Temperature raises the Air purification that can strengthen described composite coating, by the effect of radiator fan, accelerates
Air current flow, on the one hand can promote heat radiation, on the other hand also improve the efficiency of Air purification.Heat radiation mould
It is provided with temperature sensor in group and adds thermal resistance, single-chip microcomputer completing temperature control.
Compared with existing similar techniques, the present invention has following technical effect that
1, by using ultraviolet LED luminous source, power significantly declines；
2, by design and the Based Intelligent Control of single-chip microcomputer of array, it is achieved work LED location, work
The flexible control of LED quantity；
3, by perfect heat dissipation design and the utilization of heat, the clean-up effect of catalyst is promoted.
4, by the control that heat radiation module temperature is interval, clean-up effect is further enhanced.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the control system of a kind of SCM Based ultraviolet LED array.
Detailed description of the invention
Below in conjunction with the accompanying drawings, elaborate, as it is shown in figure 1, one is based on single-chip microcomputer and ultraviolet LED battle array
The sterilization deodorizing device of row, drives including circuit substrate, ultraviolet LED luminous source, ultraviolet ray filter, LED
Galvanic electricity road, MCU controller, single chip control unit, heat-sink unit, active catalyst layer.
Circuit substrate aspect, uses double-side copper foil construction, and inner core liner plate can use metal or ceramic material further
Strengthen heat radiation.The LED component being provided with array-like on circuit substrate supports jack, can optionally install
Many group ultraviolet LED luminous source devices.Each array point position is respectively provided with and uniquely gates address wire, and its gating is former
Reason is similar to the data bit of random access memory and accesses, and for technology known to those of ordinary skill in the art, repeats no more.
Heat radiation aspect, for the heat radiation of further accentuator substrate, carries out metal in described support jack
Change process or be filled with heat-conducting, described metal or heat-conducting with for heat dissipation for circuit board Copper Foil and
Metal basal board or the ceramic material of liner contact, it is achieved the quick release of heat.And described heat radiation Copper Foil and interior
The metal basal board of lining or ceramic material finally contact with heat radiation module.Described heat radiation module uses common metal
Fin, its shape can be multilayer chip or curved, installs small-sized heat radiating fan inside fin additional,
Heat radiation diameter can select the DC fan of 8cm or 12cm according to the size of fin, it is simple to single-chip microcomputer root
According to temperature controlled fan rotating speed.The effect of fan has 2 points, and one is to strengthen radiating effect further, and two are to speed up
Air flows, and strengthens air purification effect.Air cleaning aspect, at described fin surface coated with nano dioxy
Changing the composite coating of titanium and activated alumina, the temperature of fin raises the sky that can strengthen described composite coating
Gas purification, it is achieved that effective utilization of used heat.
Fin is embedded with temperature sensor, and is connected with single-chip microcomputer, is provided with simultaneously and adds thermal resistance.Yin Na
Rice titanium dioxide is relevant with ambient temperature, in order to add further to the activity of Air purification with activated alumina
Strong air purification effect, utilizes temperature sensor and adds thermal resistance and the closed loop control of single-chip microcomputer so that heat radiation mould
The temperature of group controls in 45-60 degree Celsius range.When temperature is less than 45 degrees Celsius, radiator fan stall,
Heating resistance performance, until the temperature of temperature sensor detection reaches above-mentioned interval, closes and adds thermal resistance.Such as temperature
Degree higher than 60 degrees Celsius, then opens radiator fan, simultaneously according to the lifting of temperature, linearly improves fan
Rotating speed.The PWM control mode of rotation speed of the fan is technological means known to those of ordinary skill in the art, at this not
Repeat again.
Ultraviolet LED luminescence aspect, uses the wavelength UV LED component less than 280nm.Because native system is to adopt
With LED array, in order to ensure Disinfection Effect and control efficiency, often group LED component all configures accordingly
MCU unit and drive circuit.Described MCU unit is connected with drive circuit, and being driven by 220V voltage should
Drive circuit, and drive circuit is connected with ultraviolet LED, it is achieved the rational driving of LED.In order to strengthen purple
The disinfection efficiency of outer LED, and filter the light wave of wavelength more long-wave band, outside ultraviolet LED, use ultraviolet filtering
Sheet, it is ensured that the wavelength of the ultraviolet light of final output meets desired extent.Further, ultraviolet LED module is even
It is connected to aforementioned heat radiation module.
Single chip control unit aspect, can use 89C52 series monolithic (to include later stage modified model such as STC
Serial model No.), it is possible to use PIC series monolithic to add the combination of delivery outlet extended chip.Single-chip Controlling list
Unit uses 5V power supply to power, and input uses 4*4 array keyboard, and keyboard includes ten key and reset
Key and some function keys, output uses 4 LED charactrons to show.Separately reserve 8bit data/address bus pair
LED array carries out gating control.Being worked No. LED by keyboard to set up, this gating unit of Single-chip Controlling enters
Row work, and shown by after LED charactron two.LED charactron first can be as LED work
Making status indication position, 0 is standby mode, and 1 is part LED operation pattern, 2 whole LED operation moulds
Formula；Second can as heat radiation module duty marker bit, 0 for natural heat dissipation state (i.e. add thermal resistance and
Radiator fan does not works), 1 is heating mode (i.e. heating resistance performance, radiator fan does not works), and 2 are
Cooling mode (the most only radiator fan work).
Further, radiator fan could be arranged to two-way operation, i.e. rotating forward, reversing mode alternate run, or
Invert 1 minute when person starts, enter co-rotating mode afterwards.So can reduce the dust attachment of fin surface,
Improve radiating efficiency and air purification efficiency.
Claims (6)
1. the control system of a SCM Based ultraviolet LED array, it is characterised in that: include circuit base
Plate, ultraviolet LED luminous source, ultraviolet ray filter, LED drive circuit, MCU controller, single-chip microcomputer
Control unit, heat-sink unit, active catalyst layer；Described single chip control unit uses 89C52 series list
Sheet machine, it is possible to use PIC series monolithic to add the combination of delivery outlet extended chip, described single chip control unit
Using 5V power supply to power, input uses 4*4 array keyboard, and keyboard includes ten key and reset key
And function key, output uses 4 LED charactrons to show.Separately reserve 8bit data/address bus to LED battle array
Row carry out gating control, are worked No. LED by keyboard to set up, and this gating unit of Single-chip Controlling is operated,
And being shown by after LED charactron two, LED charactron first can be as LED operation state mark
Note position, 0 is standby mode, and 1 is part LED operation pattern, 2 whole LED operation patterns；Second
Position can be as heat radiation module duty marker bit, and 0 (i.e. adds thermal resistance and radiator fan for natural heat dissipation state
Do not work), 1 is heating mode (i.e. heating resistance performance, radiator fan does not works), and 2 is cooling mode
(the most only radiator fan work), described circuit substrate uses double-side copper foil construction in order to heat radiation and reserved
The LED component array of receptacles of spacing, is filled with heat-conducting, described heat conduction material in described LED component jack
Matter contacts with the Copper Foil of circuit board, and described Copper Foil contacts with heat-sink unit, it is achieved the rapid release of heat.
The control system of a kind of SCM Based ultraviolet LED array the most according to claim 1, its
It is characterised by: described heat-sink unit uses multilayer chip or curved metal fin, and it is provided with PWM
Fan and add thermal resistance.
The control system of a kind of SCM Based ultraviolet LED array the most according to claim 2, its
It is characterised by: described metal fin surface-coated has the composite coating of nano titanium oxide and activated alumina.
The control system of a kind of SCM Based ultraviolet LED array the most according to claim 2, its
It is characterised by: described DC fan can install 1 or 2, and size can select 8cm or 12cm,
If installing 2 fans, then fan rotation direction needs identical.
The control system of a kind of SCM Based ultraviolet LED array the most according to claim 1, its
Be characterised by: described LED drive circuit, MCU controller quantity identical with the quantity of LED luminous source,
Gate also by single-chip microcomputer.
The control system of a kind of SCM Based ultraviolet LED array the most according to claim 1, its
It is characterised by: described ultraviolet LED luminous source selects the wavelength uv-LED device less than 280nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610236890.5A CN105770959B (en) | 2016-04-15 | 2016-04-15 | A kind of control system of SCM Based ultraviolet LED array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610236890.5A CN105770959B (en) | 2016-04-15 | 2016-04-15 | A kind of control system of SCM Based ultraviolet LED array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105770959A true CN105770959A (en) | 2016-07-20 |
| CN105770959B CN105770959B (en) | 2018-05-22 |
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| CN201610236890.5A Active CN105770959B (en) | 2016-04-15 | 2016-04-15 | A kind of control system of SCM Based ultraviolet LED array |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009049010A (en) * | 2007-08-13 | 2009-03-05 | Sgf Associates Inc | Power led lighting device |
| CN102333986A (en) * | 2009-06-10 | 2012-01-25 | 史瑞许·D·戴许庞德 | Customizable, long-lasting, thermally efficient, environmentally friendly solid-state lighting |
| US8926121B2 (en) * | 2013-02-15 | 2015-01-06 | Youjin Wu | Portable light with spectrum control means |
| CN104984885A (en) * | 2015-07-31 | 2015-10-21 | 苏州虞联材料科技有限公司 | Multi-band LED UV curing apparatus |
| CN205698627U (en) * | 2016-04-15 | 2016-11-23 | 镇江市高等专科学校 | A kind of control system of SCM Based ultraviolet LED array |
-
2016
- 2016-04-15 CN CN201610236890.5A patent/CN105770959B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009049010A (en) * | 2007-08-13 | 2009-03-05 | Sgf Associates Inc | Power led lighting device |
| CN102333986A (en) * | 2009-06-10 | 2012-01-25 | 史瑞许·D·戴许庞德 | Customizable, long-lasting, thermally efficient, environmentally friendly solid-state lighting |
| US8926121B2 (en) * | 2013-02-15 | 2015-01-06 | Youjin Wu | Portable light with spectrum control means |
| CN104984885A (en) * | 2015-07-31 | 2015-10-21 | 苏州虞联材料科技有限公司 | Multi-band LED UV curing apparatus |
| CN205698627U (en) * | 2016-04-15 | 2016-11-23 | 镇江市高等专科学校 | A kind of control system of SCM Based ultraviolet LED array |
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| Publication number | Publication date |
|---|---|
| CN105770959B (en) | 2018-05-22 |
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Address after: No. 518, changxiangxi Avenue, University Park, Dantu District, Zhenjiang City, Jiangsu Province Patentee after: Zhenjiang College Address before: 212003 No. 61, Xuefu Road, Zhenjiang, Jiangsu Patentee before: Zhenjiang College |