CN106361209A - Pyroelectric infrared automatic hand drier - Google Patents
Pyroelectric infrared automatic hand drier Download PDFInfo
- Publication number
- CN106361209A CN106361209A CN201611015499.9A CN201611015499A CN106361209A CN 106361209 A CN106361209 A CN 106361209A CN 201611015499 A CN201611015499 A CN 201611015499A CN 106361209 A CN106361209 A CN 106361209A
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- Prior art keywords
- audion
- infrared
- electric capacity
- resistance
- circuit
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/48—Drying by means of hot air
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/955—Proximity switches using a capacitive detector
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Central Heating Systems (AREA)
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
The present invention relates to a kind of hand dryer, specifically a kind of heat is released infrared automatic hand drier, is belonged to electronic technology field.
Background technology
In public arenas such as school, airport station, hotel, stadium, people are not often suitable after washing one's hands
Wiping handss, damp handss can only dry or wipe on clothes towel as possible, if arrange public towel to seem unhygienic again,
Therefore occur in that on the market as the special automatic hand dryer being equipped with public arena.After washing one's hands, handss are stretched in automatic hand dryer
Under air outlet, automatic hand dryer can send comfortable cold wind or hot blast automatically, dries up handss rapidly, and work as handss and leave and automatically do
During the blowing mouth of handss device, its blowing-out shutdown automatically again, very convenient.In order to realize above-mentioned automatic sensing function, most from
Dynamic hand dryer is all to be controlled using infrared induction circuit, but the infrared induction circuit of routine will be related to infrared
Penetrate and receiving device, the electrical equipment of use is many, and control circuit is relatively complicated, and fault rate is higher.
In recent years, human body pyroelectricity infrared sensor achieves rapid progress, because the body temperature of human body is constant, therefore
Human infrared radiation can reach certain scope, and human body pyroelectricity infrared sensor is exactly to pass through to detect that normal human is sent
Come detected, this is a kind of passive-type infrared sensor to strong infra-red radiation, and this type sensor does not need infrared emission
And receiving device, do not affected by ambient visible light, can be used to directly to accept infrared ray that target object launched and
It is converted into voltage signal output.It is therefore desirable to be able to exploitation is a kind of to be realized using human body heat-releasing electric transducer automatically
The hand dryer of inducing function.
Content of the invention
It is an object of the invention to provide a kind of heat releases infrared automatic hand drier, red to solve the routine that existing hand dryer adopts
Outside line sensor circuit will be related to transmitting and receiving device, use the problems such as electrical equipment is many, control circuit is complicated, fault rate is high.
The concrete technical scheme of the present invention is:
A kind of heat releases infrared automatic hand drier, and its circuit adopts 220v civil power through transformator t1 transformation and rectifier bridge d1～d4 all-wave
Rectification, then filter through electric capacity c1 successively, three terminal regulator 7806 voltage stabilizing, after electric capacity c2 filtering, obtain direct current 6v power supply to rear class
Infrared induction control circuit power.
Described infrared induction control circuit adopts human body pyroelectricity infrared sensor sd02 module and time base circuit ne555 core
Piece is built, and 6v power supply connects 1 foot power input of sd02 module, 3 foot earth terminal ground connection of sd02 module, 2 foot outfans
Connect the positive pole of electric capacity c3 and one end of resistance r1, the minus earth of electric capacity c3, the base stage of another termination audion q1 of resistance r1,
The grounded emitter of audion q1, one end of colelctor electrode connecting resistance r3 and the base stage of audion q2, the other end of resistance r3 and three
The emitter stage of pole pipe q2 connects 6v power supply, and the colelctor electrode of audion q2 connects the 4 of ne555 chip, 8 feet, and 8 feet of ne555 chip also connect
One end of connecting resistance r2 and the negative pole of diode d5, the positive pole of the other end of resistance r2 and diode d5 connects ne555 core jointly
The 2 of piece, the positive pole of 6 feet and electric capacity c4, the minus earth of electric capacity c4,1 foot ground connection of ne555 chip, 3 foot series resistor r4 are followed by
The base stage of audion q3, the grounded emitter of audion q3, one end of collector connecting relay k coil and diode d6 are just
Pole, the other end of relay k coil and the negative pole of diode d6 connect 6v power supply.
220v civil power controls break-make by being serially connected in l On line switch s, is parallel with heater circuit between n line and l line,
In heater circuit, l line after one end connecting valve s of relay k moving together contact k1, another termination of moving together contact k1
One end of ptc heater, the other end of ptc heater is connected with n line, and fan electromotor m is connected in parallel on the two ends of ptc heater.
Described electric capacity c1, c3, c4 are respectively adopted 220 μ f, 1 μ f, the electrochemical capacitor of 10 μ f, and electric capacity c2 adopts the electricity of 2.2 μ f
Hold, resistance r1, r2, r3, r4 are respectively adopted the resistance of 100k ω, 470k ω, 10k ω, 1k ω, and diode d5 and d6 is respectively adopted
1n4735 and 1n4001, audion q1 and q3 are respectively adopted npn audion s9013 and s8050, and audion q2 adopts pnp
Audion s8850, relay k adopt jzc-22f-dc6v relay, and ptc heater adopts the ptc heater of 400w.
Advantages of the present invention is: compares with using the hand dryer of conventional infrared induction circuit, the heat of the present invention is released infrared
Automatic hand dryer can directly be sensed it is not necessary to be equipped with infrared emission and receiving device, therefore to human body pyroelectricity infrared ray
Will not be affected by the obstruct of barrier and other light, stable work in work, and the hand dryer of the present invention is using electrically
Element is few, and control circuit is simple, and fault rate is low, highly promotes.
Brief description
Fig. 1 releases the circuit diagram of infrared automatic hand drier for heat of the present invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, heat of the present invention release infrared automatic hand drier circuit adopt 220v civil power through transformator t1 transformation and
Rectifier bridge d1～d4 all wave rectification, then filter through electric capacity c1 successively, three terminal regulator 7806 voltage stabilizing, after electric capacity c2 filtering, obtain
Direct current 6v power supply is powered to the infrared induction control circuit of rear class.
Described infrared induction control circuit adopts human body pyroelectricity infrared sensor sd02 module and time base circuit ne555 core
Piece is built, and 6v power supply connects 1 foot power input of sd02 module, 3 foot earth terminal ground connection of sd02 module, 2 foot outfans
Connect the positive pole of electric capacity c3 and one end of resistance r1, the minus earth of electric capacity c3, the base stage of another termination audion q1 of resistance r1,
The grounded emitter of audion q1, one end of colelctor electrode connecting resistance r3 and the base stage of audion q2, the other end of resistance r3 and three
The emitter stage of pole pipe q2 connects 6v power supply, and the colelctor electrode of audion q2 connects the 4 of ne555 chip, 8 feet, and 8 feet of ne555 chip also connect
One end of connecting resistance r2 and the negative pole of diode d5, the positive pole of the other end of resistance r2 and diode d5 connects ne555 core jointly
The 2 of piece, the positive pole of 6 feet and electric capacity c4, the minus earth of electric capacity c4,1 foot ground connection of ne555 chip, 3 foot series resistor r4 are followed by
The base stage of audion q3, the grounded emitter of audion q3, one end of collector connecting relay k coil and diode d6 are just
Pole, the other end of relay k coil and the negative pole of diode d6 connect 6v power supply.
220v civil power controls break-make by being serially connected in l On line switch s, is parallel with heater circuit between n line and l line,
In heater circuit, l line after one end connecting valve s of relay k moving together contact k1, another termination of moving together contact k1
One end of ptc heater, the other end of ptc heater is connected with n line, and fan electromotor m is connected in parallel on the two ends of ptc heater.
The operation principle that the heat of the present invention releases infrared automatic hand drier is: after the s that closes a switch makes power on circuitry, when nobody will
When handss stretch into below hand dryer air outlet, sd02 module is not received by human body pyroelectricity infrared ray, and its 2 foot exports low level,
Audion q1 and q2 does not work all in cut-off state, ne555 chip, and relay k is in dead electricity release conditions, and relay k moves
Close contact k1 to disconnect, ptc heater and fan electromotor m all do not work.
When someone stretches into handss below hand dryer air outlet, sd02 module receives human body pyroelectricity infrared ray, its 2 foot
Output high level, makes audion q1 and q2 saturation conduction, ne555 chip obtains electric work, and its 3 foot exports high level, audion q3
Conducting, relay k obtains electric adhesive, and relay k moving together contact k1 closes, and ptc heater and fan electromotor m start working, from dry
Handss device air outlet blows out hot blast.Meanwhile, electric capacity c4 is charged by resistance r2, so that 6 foot voltages of ne555 chip is constantly risen
Height, after certain time, 6 foot voltages rise to 4v(2/3vcc) more than when, ne555 chip internal circuits overturn, and 3 feet are changed into low
Level, audion q3 ends, relay k dead electricity release conditions, and relay k moving together contact k1 disconnects, and ptc heater and fan are electric
Machine m quits work.When 6 foot voltages of ne555 chip not yet rise to 4v, if now opened hand-held, 2 feet of sd02 module
Output low level can be overturn, so that audion q1 and q2 is ended, ne555 chip dead electricity, and then make relay k shift to an earlier date dead electricity release,
Ptc heater and fan electromotor m quit work.
Above-mentioned legend is only the exemplary embodiments of the present invention, is not limited to the present invention, all spirit in the present invention and
Any modification made within principle or equivalent and improvement etc., should be included within the scope of the present invention.
Claims (2)
1. a kind of heat releases infrared automatic hand drier, it is characterized in that: the circuit of described hand dryer adopts 220v civil power through transformator t1
Transformation and rectifier bridge d1～d4 all wave rectification, then filter through electric capacity c1 successively, three terminal regulator 7806 voltage stabilizing, electric capacity c2 filters
Afterwards, obtain direct current 6v power supply to power to the infrared induction control circuit of rear class；
Described infrared induction control circuit is entered using human body pyroelectricity infrared sensor sd02 module and time base circuit ne555 chip
Row builds, and 6v power supply connects 1 foot power input of sd02 module, 3 foot earth terminal ground connection of sd02 module, 2 foot output termination electricity
Hold the positive pole of c3 and one end of resistance r1, the minus earth of electric capacity c3, the base stage of another termination audion q1 of resistance r1, three poles
The grounded emitter of pipe q1, one end of colelctor electrode connecting resistance r3 and the base stage of audion q2, the other end of resistance r3 and audion
The emitter stage of q2 connects 6v power supply, and the colelctor electrode of audion q2 connects the 4 of ne555 chip, 8 feet, and 8 feet of ne555 chip are also connected with electricity
Resistance one end of r2 and the negative pole of diode d5, the positive pole of the other end of resistance r2 and diode d5 connects ne555 chip jointly
2nd, the positive pole of 6 feet and electric capacity c4, the minus earth of electric capacity c4,1 foot ground connection of ne555 chip, 3 foot series resistor r4 are followed by three poles
The base stage of pipe q3, the grounded emitter of audion q3, one end of collector connecting relay k coil and the positive pole of diode d6, continue
The negative pole of the other end of electrical equipment k coil and diode d6 connects 6v power supply；
220v civil power controls break-make by being serially connected in l On line switch s, is parallel with heater circuit between n line and l line, in heating
In device circuit, l line after one end connecting valve s of relay k moving together contact k1, another termination ptc of moving together contact k1 adds
One end of hot device, the other end of ptc heater is connected with n line, and fan electromotor m is connected in parallel on the two ends of ptc heater.
2. heat according to claim 1 releases infrared automatic hand drier, it is characterized in that: described electric capacity c1, c3, c4 are respectively adopted
220 μ f, 1 μ f, the electrochemical capacitor of 10 μ f, electric capacity c2 adopt 2.2 μ f electric capacity, resistance r1, r2, r3, r4 be respectively adopted 100k ω,
470k ω, 10k ω, the resistance of 1k ω, diode d5 and d6 is respectively adopted 1n4735 and 1n4001, and audion q1 and q3 adopts respectively
With npn audion s9013 and s8050, audion q2 adopts pnp audion s8850, relay k to adopt jzc-22f-
Dc6v relay, ptc heater adopts the ptc heater of 400w.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611015499.9A CN106361209A (en) | 2016-11-18 | 2016-11-18 | Pyroelectric infrared automatic hand drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611015499.9A CN106361209A (en) | 2016-11-18 | 2016-11-18 | Pyroelectric infrared automatic hand drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106361209A true CN106361209A (en) | 2017-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611015499.9A Pending CN106361209A (en) | 2016-11-18 | 2016-11-18 | Pyroelectric infrared automatic hand drier |
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| Country | Link |
|---|---|
| CN (1) | CN106361209A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594724A (en) * | 2018-06-22 | 2018-09-28 | 苏州宏云智能科技有限公司 | Ceiling type multifunctional controller system based on infrared signal |
| CN110111525A (en) * | 2019-05-24 | 2019-08-09 | 蔡宸熙 | A kind of fire-fighting early warning system Internet-based |
| CN111028635A (en) * | 2019-12-19 | 2020-04-17 | 北京中诚博睿教育科技有限公司 | Electronic automatic hand dryer teaching aid for children intelligence development |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202665414U (en) * | 2012-05-03 | 2013-01-16 | 成都智利达科技有限公司 | Simple, easy and automatic hand drier |
| CN104257315A (en) * | 2014-09-12 | 2015-01-07 | 成都威邦科技有限公司 | Infrared automatic hand drier circuit |
| CN105231941A (en) * | 2015-10-21 | 2016-01-13 | 吴圣铎 | Infrared light-operated hand drier |
| CN205641569U (en) * | 2016-05-11 | 2016-10-12 | 宋新军 | Hand dryer control circuit |
-
2016
- 2016-11-18 CN CN201611015499.9A patent/CN106361209A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202665414U (en) * | 2012-05-03 | 2013-01-16 | 成都智利达科技有限公司 | Simple, easy and automatic hand drier |
| CN104257315A (en) * | 2014-09-12 | 2015-01-07 | 成都威邦科技有限公司 | Infrared automatic hand drier circuit |
| CN105231941A (en) * | 2015-10-21 | 2016-01-13 | 吴圣铎 | Infrared light-operated hand drier |
| CN205641569U (en) * | 2016-05-11 | 2016-10-12 | 宋新军 | Hand dryer control circuit |
Non-Patent Citations (1)
| Title |
|---|
| 全新实用电路集粹编辑委员会: "《全新实用电路集粹 下》", 31 January 2006 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594724A (en) * | 2018-06-22 | 2018-09-28 | 苏州宏云智能科技有限公司 | Ceiling type multifunctional controller system based on infrared signal |
| CN110111525A (en) * | 2019-05-24 | 2019-08-09 | 蔡宸熙 | A kind of fire-fighting early warning system Internet-based |
| CN111028635A (en) * | 2019-12-19 | 2020-04-17 | 北京中诚博睿教育科技有限公司 | Electronic automatic hand dryer teaching aid for children intelligence development |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20170201 |