CN205083368U - Infrared light -operated hand dryer - Google Patents
Infrared light -operated hand dryer Download PDFInfo
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- CN205083368U CN205083368U CN201520824187.7U CN201520824187U CN205083368U CN 205083368 U CN205083368 U CN 205083368U CN 201520824187 U CN201520824187 U CN 201520824187U CN 205083368 U CN205083368 U CN 205083368U
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Abstract
The utility model discloses an infrared light -operated hand dryer, its characteristic includes: 220V alternating current power supply, 12V half -wave rectification constant voltage power supply, infrared light -operated circuit, light control signal amplifier circuit, electrical heating and fan drive circuit. The hand dryer market owning amount that adds the fever type is the biggest, and its heating power is bigger usually, and is many more than 1500W, and the power of motor generally is 200W, and the typical characteristics of this kind of hand dryer are that the wind -warm syndrome is very high, rely on the wind than the higher temperature, walk hosepipe on hand, and its advantage is that the noise is little, so it has received the favor in the spaces that need peace and quiet such as office building. Experiment through multiple scheme, the utility model discloses use the power drive element of bidirectional thyristor as electrical heating and fan to be aided with that a small amount of ordinary components and parts have realized that infrared light -operated hand dryer circuit structure is simple, dependable performance, requirement that the cost is low.
Description
Technical field
The utility model belongs to application of electronic technology field, is about a kind of infrared light control hand dryer.
Background technology
Hand dryer is that it is divided into induction type automatic hand dryer and manual hand dryer with oven dry both hands or the sanitary equipment electrical equipment drying up both hands between a kind of bathroom.It to be mainly used between hotel, restaurant, scientific research institution, hospital, place of public amusement or domestic hygiene etc.
The hand dryer market owning amount of hot type is maximum, usually its heating power is larger, many at more than 1500W, and power of motor is generally 200W, the typical feature of this hand dryer is that wind-warm syndrome is very high, and rely on the wind than higher temperature, the water-band on handle is walked, its advantage is that noise is little, therefore receives office building etc. and to need peace and quiet the favor in space.Through the test of kinds of schemes, the utility model uses bidirectional triode thyristor as the power drive element of electrical heating and blower fan, and is aided with a small amount of common components and parts and achieves the requirement that infrared light control hand dryer circuit structure is simple, dependable performance, cost are low.
Below describe that infrared light control hand dryer described in the utility model is involved necessary in implementation process, guardian technique content in detail.
Utility model content
Goal of the invention and beneficial effect: the hand dryer market owning amount of hot type is maximum, usually its heating power is larger, many at more than 1500W, and power of motor is generally 200W, the typical feature of this hand dryer is that wind-warm syndrome is very high, and rely on the wind than higher temperature, the water-band on handle is walked, its advantage is that noise is little, therefore receives office building etc. and to need peace and quiet the favor in space.Through the test of kinds of schemes, the utility model uses bidirectional triode thyristor as the power drive element of electrical heating and blower fan, and is aided with a small amount of common components and parts and achieves the requirement that infrared light control hand dryer circuit structure is simple, dependable performance, cost are low.
Circuit working principle: the circuit of infrared light control hand dryer is made up of 220V AC power, 12V halfwave rectifier voltage-stabilized power supply, Infrared emitting and receiving circuit (that is: light-operated circuit) and electrical heating and fan drive circuit.220V AC power through electric capacity C2 and resistance R5 step-down current limliting, then carries out halfwave rectifier through silicon rectifier silicon diode D4, finally obtains 12V voltage-stabilized power supply by after silicon voltage regulator diode DW voltage stabilizing.
Infrared light control hand dryer is that infrared light emission pipe D1 is faced the below that photosensitive receiving tube D2 is installed on hand dryer, when staff does not enter hand dryer, the infrared light direct irradiation that infraluminescence pipe D1 sends is on photosensitive receiving tube D2, at this moment photosensitive receiving tube D2 conducting makes its resistance very little, the grid potential of enhancement mode N channel field-effect pipe VT1 is very low and end, silicon rectifier diode D3 is made to export as low level, bidirectional triode thyristor BCR is in cut-off, thus electrical heating wire RL and blower fan are not worked without electricity.
When staff enters hand dryer, the infrared light that infraluminescence pipe D1 sends is blocked by hand, what photosensitive receiving tube D2 resistance was become is very large, the grid potential of enhancement mode N channel field-effect pipe VT1 becomes high level, enhancement mode N channel field-effect pipe VT1 conducting simultaneously, make silicon rectifier diode D3 export as high level like this, thus control bidirectional triode thyristor BCR conducting, make electrical heating wire RL and blower fan obtain electric starting working.The resistance of regulator potentiometer RP, can change the sensitivity of light-operated circuit.Electrochemical capacitor C1 in circuit establishes in order to stabilization.
Technical characteristic: infrared light control hand dryer, it comprises 220V AC power, 12V halfwave rectifier voltage-stabilized power supply, infrared light control circuit, optically-controlled signal amplifying circuit, electrical heating and fan drive circuit, it is characterized in that:
Infrared light control circuit: it is made up of infrared light emission diode D1, resistance R1 and photodiode D2, trimmer potentiometer RP and resistance R2, the positive pole of infrared light emission diode D1 is by resistance R1 connection circuit positive pole VCC, the negative pole connection circuit ground GND of infrared light emission diode D1, the positive pole of photodiode D2 connects one end of trimmer potentiometer RP by resistance R2, the other end of trimmer potentiometer RP and the negative pole connection circuit ground GND of movable end connection circuit positive pole VCC, photodiode D2 thereof;
Optically-controlled signal amplifying circuit: it is made up of enhancement mode N channel field-effect pipe VT1, resistance R3 and resistance R4, the grid of enhancement mode N channel field-effect pipe VT1 connects the positive pole of photodiode D2, the drain electrode of enhancement mode N channel field-effect pipe VT1 passes through resistance R4 connection circuit ground GND by the source electrode of resistance R3 connection circuit positive pole VCC, enhancement mode N channel field-effect pipe VT1;
Electrical heating and fan drive circuit: it is by silicon rectifier diode D3, electrochemical capacitor C1, bidirectional triode thyristor BCR, electrical heating wire RL and blower fan composition, the positive pole of silicon rectifier diode D3 connects the source electrode of enhancement mode N channel field-effect pipe VT1, the negative pole of silicon rectifier diode D3 meets the positive pole of electrochemical capacitor C1 and the control pole G of bidirectional triode thyristor BCR, the negative pole of electrochemical capacitor C1 and the first anode T1 connection circuit ground GND of bidirectional triode thyristor BCR, the second plate T2 of bidirectional triode thyristor BCR connects one end of electrical heating wire RL and one end of blower fan, the live wire end L of the other end of electrical heating wire RL and another termination 220V AC power of blower fan,
12V halfwave rectifier voltage-stabilized power supply: it is made up of electric capacity C2, resistance R5, silicon rectifier diode D4 and silicon voltage regulator diode DW, the technical parameter that silicon voltage regulator diode DW uses is 12V, the live wire end L of 220V AC power connects one end of electric capacity C3 and one end of resistance R5, the positive pole of the other end of electric capacity C3 and another termination silicon rectifier diode D4 of resistance R5, the negative pole of silicon rectifier diode D4 connects the negative pole of silicon voltage regulator diode DW, the positive pole connection circuit ground GND of silicon voltage regulator diode DW;
The positive pole of 12V halfwave rectifier voltage-stabilized power supply is connected with circuit anode VCC, and the negative pole of 12V halfwave rectifier voltage-stabilized power supply is connected with the zero line side N of circuit ground GND and 220V AC power.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit working schematic diagram of the infrared light control hand dryer embodiment that the utility model provides.
Detailed description of the invention
According to the infrared light control hand dryer circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in utility model content, and components and parts technical parameter described in embodiment requires and circuit production main points are carried out enforcement and can be realized the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.
The technical parameter of components and parts and selection requirement thereof
The model that infrared light emission diode D1 and photosensitive reception diode D2 adopts is respectively SE303 and PH302;
VT1 is enhancement mode N channel field-effect pipe, and the model selected is IRFZ22;
D3 and D4 is silicon rectifier diode, and the model selected is 1N4007;
DW is silicon voltage regulator diode, and the technical parameter of use is 12V, power is 1W;
BCR is bidirectional triode thyristor, and the technical parameter of use is 450V, 15A;
RP WH7-A type trimmer potentiometer, its resistance is 320K Ω;
Rl ~ R4 resistance adopts 1/8W metalfilmresistor, and its resistance is respectively 7.2K Ω, 62K Ω, 120K Ω, 8.2K Ω; The resistance of resistance R5 is 510K Ω, power is 1W;
C1 uses CD11-25V type electrochemical capacitor, and capacity is 68 μ F, electric capacity C2 is decompression capacitor, and its capacity is 0.68 μ F/450V;
RL is electrical heating wire, and the technical parameter of use is 220V, 1500W;
Blower fan uses series-wound motor and permanent magnet motor, and its technical parameter is 220V, 160W.
Circuit production main points and circuit debugging thereof
Because the circuit structure of infrared light control hand dryer is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present utility model only needs to carry out simple debugging and can normally work.
Circuit components layout of the present utility model, circuit structure design, its shape and size etc. thereof of outward appearance are not all key technologies of the present utility model; neither the claimed technology contents of the utility model; because not affecting the utility model specific implementation process, therefore do not illustrate one by one in the description.
Claims (1)
1. an infrared light control hand dryer, it comprises 220V AC power, 12V halfwave rectifier voltage-stabilized power supply, infrared light control circuit, optically-controlled signal amplifying circuit, electrical heating and fan drive circuit, it is characterized in that:
Described infrared light control circuit is made up of infrared light emission diode D1, resistance R1 and photodiode D2, trimmer potentiometer RP and resistance R2, the positive pole of infrared light emission diode D1 is by resistance R1 connection circuit positive pole VCC, the negative pole connection circuit ground GND of infrared light emission diode D1, the positive pole of photodiode D2 connects one end of trimmer potentiometer RP by resistance R2, the other end of trimmer potentiometer RP and the negative pole connection circuit ground GND of movable end connection circuit positive pole VCC, photodiode D2 thereof;
Described optically-controlled signal amplifying circuit is made up of enhancement mode N channel field-effect pipe VT1, resistance R3 and resistance R4, the grid of enhancement mode N channel field-effect pipe VT1 connects the positive pole of photodiode D2, the drain electrode of enhancement mode N channel field-effect pipe VT1 passes through resistance R4 connection circuit ground GND by the source electrode of resistance R3 connection circuit positive pole VCC, enhancement mode N channel field-effect pipe VT1;
Described electrical heating and fan drive circuit are by silicon rectifier diode D3, electrochemical capacitor C1, bidirectional triode thyristor BCR, electrical heating wire RL and blower fan composition, the positive pole of silicon rectifier diode D3 connects the source electrode of enhancement mode N channel field-effect pipe VT1, the negative pole of silicon rectifier diode D3 meets the positive pole of electrochemical capacitor C1 and the control pole G of bidirectional triode thyristor BCR, the negative pole of electrochemical capacitor C1 and the first anode T1 connection circuit ground GND of bidirectional triode thyristor BCR, the second plate T2 of bidirectional triode thyristor BCR connects one end of electrical heating wire RL and one end of blower fan, the live wire end L of the other end of electrical heating wire RL and another termination 220V AC power of blower fan,
Described 12V halfwave rectifier voltage-stabilized power supply is made up of electric capacity C2, resistance R5, silicon rectifier diode D4 and silicon voltage regulator diode DW, the technical parameter that silicon voltage regulator diode DW uses is 12V, the live wire end L of 220V AC power connects one end of electric capacity C3 and one end of resistance R5, the positive pole of the other end of electric capacity C3 and another termination silicon rectifier diode D4 of resistance R5, the negative pole of silicon rectifier diode D4 connects the negative pole of silicon voltage regulator diode DW, the positive pole connection circuit ground GND of silicon voltage regulator diode DW;
The positive pole of described 12V halfwave rectifier voltage-stabilized power supply is connected with circuit anode VCC, and the negative pole of 12V halfwave rectifier voltage-stabilized power supply is connected with the zero line side N of circuit ground GND and 220V AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520824187.7U CN205083368U (en) | 2015-10-21 | 2015-10-21 | Infrared light -operated hand dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520824187.7U CN205083368U (en) | 2015-10-21 | 2015-10-21 | Infrared light -operated hand dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205083368U true CN205083368U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520824187.7U Expired - Fee Related CN205083368U (en) | 2015-10-21 | 2015-10-21 | Infrared light -operated hand dryer |
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| CN (1) | CN205083368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105147171A (en) * | 2015-10-21 | 2015-12-16 | 周云侠 | Infrared light-controlled hand drying device |
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2015
- 2015-10-21 CN CN201520824187.7U patent/CN205083368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105147171A (en) * | 2015-10-21 | 2015-12-16 | 周云侠 | Infrared light-controlled hand drying device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20161021 |
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| CF01 | Termination of patent right due to non-payment of annual fee |