CN205053980U - Dry hand device of staff induction type - Google Patents
Dry hand device of staff induction type Download PDFInfo
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- CN205053980U CN205053980U CN201520834871.3U CN201520834871U CN205053980U CN 205053980 U CN205053980 U CN 205053980U CN 201520834871 U CN201520834871 U CN 201520834871U CN 205053980 U CN205053980 U CN 205053980U
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Abstract
The utility model discloses a dry hand device of staff induction type, its characteristic includes: 220V alternating current power supply, 12V half -wave rectification constant voltage power supply, induction antenna and radio frequency oscillation circuit, voltage -multiplying detection and DC signal amplifier circuit, electrical heating and fan drive circuit. It is the biggest to add fever type hand dryer market owning amount, and its heating power is many more than 1000W usually, and general the about 200W of fan power, and the typical characteristics of this kind of hand dryer are that the wind -warm syndrome is very high, rely on the wind of higher temperature, evaporates on hand the drop of water and blow away, and its advantage is that the noise is little, so it has received the favor in the places that need peace and quiet such as office building. Experiment through multiple scheme, dry hand device of staff induction type utilize the response mode to use the bidirectional thyristor as the power drive component of electrical heating and fan, and be aided with a small amount of ordinary components and parts realized dry hand device of staff induction type circuit structure simply, dependable performance, low in cost's requirement.
Description
Technical field
The utility model belongs to electronic auto-control technology field, relates to the dry arm device of a kind of staff induction type.
Background technology
Hand dryer is that it mainly contains the types such as infrared-type automatic hand dryer, the dry arm device of induction type and manual hand dryer for drying both hands or drying up the sanitary equipment electric heating appliance of both hands between a kind of bathroom.It such as to be mainly used between hotel, restaurant, scientific research institution, hospital, place of public amusement or domestic hygiene at the place.
The hand dryer market owning amount of hot type is maximum, usually its heating power is larger, many at more than 1000W, and power of fan is generally about 200W, the typical feature of this hand dryer is that wind-warm syndrome is very high, relies on the wind of higher temperature, and the globule evaporation on handle blows away, its advantage is that noise is little, and therefore it receives office building etc. and to need peace and quiet the favor in place.Through the test of kinds of schemes, the dry arm device of staff induction type described in the utility model utilizes induction mode, and use bidirectional triode thyristor as the power drive element of electrical heating and blower fan, and be aided with that a small amount of common components and parts achieve that staff induction type dry arm device circuit structure is simple, dependable performance, cheap requirement.
Below describe that the dry arm device of staff induction type 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 1000W, and power of fan is generally about 200W, the typical feature of this hand dryer is that wind-warm syndrome is very high, relies on the wind of higher temperature, and the globule evaporation on handle blows away, its advantage is that noise is little, and therefore it receives office building etc. and to need peace and quiet the favor in place.Through the test of kinds of schemes, the dry arm device of staff induction type described in the utility model utilizes induction mode, and use bidirectional triode thyristor as the power drive element of electrical heating and blower fan, and be aided with that a small amount of common components and parts achieve that staff induction type dry arm device circuit structure is simple, dependable performance, cheap requirement.
Circuit working principle: the dry arm device of staff induction type forms resistance-capacitance depressurization half-wave rectifier voltage circuit by decompression capacitor C6, bleeder resistance R6 and silicon rectifier diode D3, voltage-stabiliser tube DW and electrochemical capacitor C5, electrochemical capacitor C5 is the filter capacitor of 12V D.C. regulated power supply.
The dry arm device of staff induction type is made up of induction antenna TX, RF oscillatory circuit, multiplication of voltage detection and direct current signal amplifying circuit, electrical heating and fan drive circuit.NPN type triode BG1 and peripheral cell form RF oscillatory circuit in circuit, and induction antenna TX is connected on the colelctor electrode of NPN type triode BG1.When staff is not close to induction antenna TX, the oscillating circuit normal oscillation of NPN type triode BG1 composition, now the emitter stage of NPN type triode BG1 exports radio frequency voltage signal becomes direct current signal after the detection of detector diode D1 ~ D2 multiplication of voltage, this signal can control NPN type triode BG2 conducting or cut-off, the collector terminal of NPN type triode BG2 is low level, bidirectional triode thyristor BCR ends because of triggerless, makes electrical heating wire RL and blower fan FJ be in holding state without electricity.
When staff near induction antenna will be induced by induction antenna TX and " " between electric capacity, and the increase of capacitance will reduce the amount of oscillator positive feedback until oscillating circuit stops oscillation, once oscillating circuit failure of oscillation, RF detection circuit just no longer exports direct current signal, now NPN type triode BG2 will end, the collector terminal of NPN type triode BG2 is high level, thus the bidirectional triode thyristor BCR in electrical heating and fan drive circuit is triggered, make electrical heating wire RL and blower fan FJ obtain electric starting working.
Technical scheme: the dry arm device of staff induction type, it comprises 220V AC power, 12V halfwave rectifier voltage-stabilized power supply, induction antenna and RF oscillatory circuit, multiplication of voltage detection and direct current signal amplifying circuit, electrical heating and fan drive circuit, it is characterized in that:
Induction antenna and RF oscillatory circuit: it is by induction antenna TX, NPN type triode BG1, oscillator coil L1, tunable capacitor C2, resistance R1, electric capacity C1 and load resistance R2 forms, one end of base stage connecting resistance R1 of NPN type triode BG1 and one end of electric capacity C1, the other end connection circuit positive pole VCC of resistance R1, the other end connection circuit ground GND of electric capacity C1, the colelctor electrode of NPN type triode BG1 meets induction antenna TX, one end of oscillator coil L1 and one end of tunable capacitor C2, the other end connection circuit positive pole VCC of oscillator coil L1, the emitter stage of NPN type triode BG1 connects the other end of tunable capacitor C2 and one end of load resistance R2, the other end connection circuit ground GND of load resistance R2,
Multiplication of voltage detection and direct current signal amplifying circuit: it is by coupling capacitance C3, detector diode D1 ~ D2 and filter capacitor C4, resistance R3, NPN type triode BG2 and, resistance R4 forms, the emitter stage of the one termination NPN type triode BG1 of coupling capacitance C3, the negative pole of another termination detector diode D1 of coupling capacitance C3 and the positive pole of detector diode D2, the positive pole connection circuit ground GND of detector diode D1, the negative pole of detector diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4, the base stage of NPN type triode BG2 connects the negative pole of detector diode D2 by resistance R3, the colelctor electrode of NPN type triode BG2 is by resistance R4 connection circuit positive pole VCC, the emitter stage connection circuit ground GND of NPN type triode BG2,
Electrical heating and fan drive circuit: it is made up of resistance R5, bidirectional triode thyristor BCR, electrical heating wire RL and blower fan FJ, the control pole G of bidirectional triode thyristor BCR connects the colelctor electrode of NPN type triode BG2 by resistance R5, the first anode T1 of bidirectional triode thyristor BCR connects one end of electrical heating wire RL and one end of blower fan FJ, the live wire end L of the other end of electrical heating wire RL and another termination 220V AC power of blower fan FJ; The second plate T2 connection circuit ground GND of bidirectional triode thyristor BCR;
12V halfwave rectifier voltage-stabilized power supply: it is by decompression capacitor C6, bleeder resistance R6 and silicon rectifier diode D3, silicon voltage regulator diode DW, electrochemical capacitor C5 forms, the technical parameter of silicon voltage regulator diode DW is 12V, the live wire end L of 220V AC power connects one end of decompression capacitor C6 and one end of bleeder resistance R6, the positive pole of the other end of decompression capacitor C6 and another termination silicon rectifier diode D3 of bleeder resistance R6, the negative pole of silicon rectifier diode D3 connects the negative pole of silicon voltage regulator diode DW and the positive pole of electrochemical capacitor C5, the positive pole of silicon voltage regulator diode DW and the negative pole connection circuit ground GND of electrochemical capacitor C5,
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 dry arm device of staff induction type; In accompanying drawing 1, the material therefor of induction antenna TX and preparation method refer to the explanation in following examples.
Detailed description of the invention
According to the staff induction type dry arm device 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.
Components and parts title and technical parameter table
| Element number | Components and parts title | Technical parameter | Quantity | Remarks |
| BG1 | NPN type triode | 2CS9018、β≥120 | 1 | Plastic packaging |
| BG2 | NPN type triode | 2CS9014、β≥180 | 1 | Plastic packaging |
| D1、D2 | Detector diode | Glassivation 1N60 | 2 | Detector diode |
| L1 | Oscillator coil | 3mH ~ 4mH colour coding inductance | 1 | |
| R1 | Resistance | 1/8W、10KΩ | 1 | Biasing resistor |
| R2 | Load resistance | 1/8W、4.7KΩ | 1 | |
| R3 | Resistance | 1/8W、3.3KΩ | 1 | Coupling |
| R4 | Resistance | 2.2KΩ | 1 |
| R5 | Resistance | 12KΩ | 1 | |
| R6 | Resistance | 510KΩ、1W | 1 | |
| C1 | Electric capacity | 0.01μF | 1 | Ceramic disc capacitor |
| C2 | Tunable capacitor | 5～20PF | 1 | Oscillating capacitance |
| C3 | Electric capacity | 680PF | 1 | Capacity is unsuitable large |
| C4 | Filter capacitor | 2.2μF | 1 | Electrochemical capacitor |
| C5 | Filter capacitor | 1000μF | 1 | Electrochemical capacitor |
| C6 | Decompression capacitor | 0.68μF/450V | 1 | |
| TX | Induction antenna | Area > 50mm × 50mm | 1 | Thickness 1mm aluminium sheet |
| FJ | Blower fan | 1600W | 1 | |
| RL | Electrical heating wire | 180W | 1 group |
Circuit production main points and circuit debugging
The making of induction antenna TX: select thickness to be 1mm aluminium sheet or copper sheet, the long 50mm of size of induction antenna, wide 50mm;
Because the circuit structure of the dry arm device of staff induction type 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;
The starting of oscillation of the size adjustable RF oscillatory circuit of tunable capacitor C2 capacity, failure of oscillation two critical values, be mainly used in regulating staff distance to wait sensitivity.Oscillator coil L1 is colour coding inductance in fig. 1, and inductance value is 3mH ~ 4mH, if when the inductance value of oscillator coil is greater than 4mH, needs the capacity suitably increasing tunable capacitor C2, thus enables RF oscillatory circuit starting of oscillation smoothly; Other dc point does not need debugging normally to work substantially.
Circuit structure design of the present utility model, components' placement; and its face shaping and size etc. thereof are not all key technologies of the present utility model; neither the claimed guardian technique content of the utility model; because not affecting the realization of the utility model specific implementation process and utility model object, therefore do not illustrate one by one in the description.
Claims (1)
1. the dry arm device of staff induction type, it comprises 220V AC power, 12V halfwave rectifier voltage-stabilized power supply, induction antenna and RF oscillatory circuit, multiplication of voltage detection and direct current signal amplifying circuit, electrical heating and fan drive circuit, it is characterized in that:
Described induction antenna and RF oscillatory circuit are by induction antenna TX, NPN type triode BG1, oscillator coil L1, tunable capacitor C2, resistance R1, electric capacity C1 and load resistance R2 forms, one end of base stage connecting resistance R1 of NPN type triode BG1 and one end of electric capacity C1, the other end connection circuit positive pole VCC of resistance R1, the other end connection circuit ground GND of electric capacity C1, the colelctor electrode of NPN type triode BG1 meets induction antenna TX, one end of oscillator coil L1 and one end of tunable capacitor C2, the other end connection circuit positive pole VCC of oscillator coil L1, the emitter stage of NPN type triode BG1 connects the other end of tunable capacitor C2 and one end of load resistance R2, the other end connection circuit ground GND of load resistance R2,
Described multiplication of voltage detection and direct current signal amplifying circuit are by coupling capacitance C3, detector diode D1 ~ D2 and filter capacitor C4, resistance R3, NPN type triode BG2 and, resistance R4 forms, the emitter stage of the one termination NPN type triode BG1 of coupling capacitance C3, the negative pole of another termination detector diode D1 of coupling capacitance C3 and the positive pole of detector diode D2, the positive pole connection circuit ground GND of detector diode D1, the negative pole of detector diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4, the base stage of NPN type triode BG2 connects the negative pole of detector diode D2 by resistance R3, the colelctor electrode of NPN type triode BG2 is by resistance R4 connection circuit positive pole VCC, the emitter stage connection circuit ground GND of NPN type triode BG2,
Described electrical heating and fan drive circuit are made up of resistance R5, bidirectional triode thyristor BCR, electrical heating wire RL and blower fan FJ, the control pole G of bidirectional triode thyristor BCR connects the colelctor electrode of NPN type triode BG2 by resistance R5, the first anode T1 of bidirectional triode thyristor BCR connects one end of electrical heating wire RL and one end of blower fan FJ, the live wire end L of the other end of electrical heating wire RL and another termination 220V AC power of blower fan FJ; The second plate T2 connection circuit ground GND of bidirectional triode thyristor BCR;
Described 12V halfwave rectifier voltage-stabilized power supply is by decompression capacitor C6, bleeder resistance R6 and silicon rectifier diode D3, silicon voltage regulator diode DW, electrochemical capacitor C5 forms, the technical parameter of silicon voltage regulator diode DW is 12V, the live wire end L of 220V AC power connects one end of decompression capacitor C6 and one end of bleeder resistance R6, the positive pole of the other end of decompression capacitor C6 and another termination silicon rectifier diode D3 of bleeder resistance R6, the negative pole of silicon rectifier diode D3 connects the negative pole of silicon voltage regulator diode DW and the positive pole of electrochemical capacitor C5, the positive pole of silicon voltage regulator diode DW and the negative pole connection circuit ground GND of electrochemical capacitor C5,
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 |
|---|---|---|---|
| CN201520834871.3U CN205053980U (en) | 2015-10-23 | 2015-10-23 | Dry hand device of staff induction type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834871.3U CN205053980U (en) | 2015-10-23 | 2015-10-23 | Dry hand device of staff induction type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205053980U true CN205053980U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520834871.3U Expired - Fee Related CN205053980U (en) | 2015-10-23 | 2015-10-23 | Dry hand device of staff induction type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205053980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105167696A (en) * | 2015-10-23 | 2015-12-23 | 周芸 | Human hand induction type hand drying device |
-
2015
- 2015-10-23 CN CN201520834871.3U patent/CN205053980U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105167696A (en) * | 2015-10-23 | 2015-12-23 | 周芸 | Human hand induction type hand drying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160302 Termination date: 20161023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |