CN201752273U - Stepless temperature regulating hair drier - Google Patents
Stepless temperature regulating hair drier Download PDFInfo
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- CN201752273U CN201752273U CN2010201616450U CN201020161645U CN201752273U CN 201752273 U CN201752273 U CN 201752273U CN 2010201616450 U CN2010201616450 U CN 2010201616450U CN 201020161645 U CN201020161645 U CN 201020161645U CN 201752273 U CN201752273 U CN 201752273U
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Abstract
The utility model relates to a stepless temperature regulating hair drier, which comprises a plastic shell, a power source switch, a regulating knob, an electric heating cord, a power source circuit, a single-chip microcomputer, a zero-crossing detection circuit, a temperature regulating circuit and a heating control circuit, wherein the power source circuit supplies a power source, the single-chip microcomputer is used of centralized control, the zero-crossing detection circuit is connected with the single-chip microcomputer, the temperature regulating circuit is connected with the single-chip microcomputer, and the heating control circuit is used for controlling heating power of the electric heating cord. Besides, a power source module of the hair drier adopts a half-bridge structure to rectify and adopts a voltage stabilizing tube to stabilize voltage, AC voltage of 220V of the alternating-current power source is divided and limited by the zero-crossing detection circuit and then is connected with a port of the single-chip microcomputer, the temperature regulating circuit is provided with an adjustable resistor and a charging capacitor and detects set temperature according to charging and discharging time, the adjustable resistor is connected with the regulating knob, and resistivity of the adjustable resistor can be changed by adjusting the regulating knob, the heating control circuit is provided with a thyristor which is connected with the electric heating cord, and the thyristor is controlled by the single-chip microcomputer via a trigger triode. The stepless temperature regulating hair drier has the advantages that heating power of the hair drier can be regulated in a stepless form so that air outflow temperature can be controlled, and the hair drier is simple in structure and reliable in performance.
Description
Technical field
The utility model relates to a kind of warm hair-dryer of stepless temperature-regulating.
Background technology
Warm hair-dryer has been from having produced till now much year, still except updating in appearance, and also keeps the most basic requirement at 26S Proteasome Structure and Function, can only provide three kinds of air-out: cold wind, warm braw and hot blast.
Summary of the invention
In order to overcome deficiency of the prior art, the utility model provides a kind of warm hair-dryer of stepless temperature-regulating, can the step-less adjustment leaving air temp, and simple in structure, dependable performance.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of warm hair-dryer of stepless temperature-regulating, comprise and mould shell, power switch, adjusting knob, electrical heating wire comprises the power circuit that power supply is provided, carry out central controlled single-chip microcomputer, the zero-crossing detection circuit that is connected with described single-chip microcomputer with the temperature regulation circuit that described single-chip microcomputer is connected, is used to control the heating control circuit of described electrical heating wire heating power.
Described power module adopts half-bridge structure to carry out rectification and the employing voltage-stabiliser tube carries out voltage stabilizing.
Described zero cross detection circuit, resistance R 5 one ends are set connect AC power 220VAC, the other end connects the negative electrode of resistance R 6, resistance R 7 and diode D4, described resistance R 6 other end ground connection, the plus earth of described diode D4, described resistance R 7 other ends connect the port A. of capacitor C 3 and described single-chip microcomputer, described capacitor C 3 other end ground connection.
Described temperature regulation circuit is provided with adjustable resistance R11, a termination power VCC, and the other end links to each other with capacitor C 5 with the port C of described single-chip microcomputer, described capacitor C 5 other end ground connection.
Described adjustable resistance R11 is connected with described adjusting knob, regulates the resistance that described adjusting knob can change described adjustable resistance R11.
Described heating control circuit, controllable silicon T1 is set to be connected with described electrical heating wire, described controllable silicon T1 two ends parallel resistance R8 and capacitor C 4, the gate pole of described controllable silicon T1 connects the emitter stage of triode Q1 by resistance R 9, the colelctor electrode of described triode Q1 connects power supply VCC, and base stage connects the port B of described single-chip microcomputer by resistance R 10.
The beneficial effects of the utility model mainly show: 1, can the step-less adjustment leaving air temp; 2, by regulating heating power, the control leaving air temp; 3, simple in structure, dependable performance.
Description of drawings
Fig. 1 is the outside drawing of the warm hair-dryer of stepless temperature-regulating;
Fig. 2 is the power circuit principle figure of the warm hair-dryer of stepless temperature-regulating;
Fig. 3 is the zero-crossing detection circuit schematic diagram of the warm hair-dryer of stepless temperature-regulating;
Fig. 4 is the temperature regulation circuit schematic diagram of the warm hair-dryer of stepless temperature-regulating;
Fig. 5 is the heating control circuit schematic diagram of the warm hair-dryer of stepless temperature-regulating.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1-5, a kind of warm hair-dryer of stepless temperature-regulating, comprise and mould shell 1, power switch 2, adjusting knob 3, electrical heating wire, comprise the power circuit that power supply is provided, carry out central controlled single-chip microcomputer 4, the zero-crossing detection circuit that is connected with described single-chip microcomputer 4, with the temperature regulation circuit that described single-chip microcomputer 4 is connected, be used to control the heating control circuit of described electrical heating wire heating power.
Described power module adopts half-bridge structure to carry out rectification and the employing voltage-stabiliser tube carries out voltage stabilizing.Adopt circuit structure as shown in Figure 2.The end of the AC power 220VAC of input connects resistance R 1, and the other end is as the ground GND of system.Described resistance R 1 other end connects capacitor C 1, described capacitor C 1 two ends parallel resistance R2.Described capacitor C 1 other end connects the negative electrode of diode D1 and the anode of diode D2.The anode of described diode D1 connects ground GND, and the negative electrode of described diode D2 is by the negative electrode of resistance R 3 connection voltage-stabiliser tube D3, and the anode of described voltage-stabiliser tube D3 connects ground GND, and its two ends shunt capacitance C2 and resistance R 4 generate power supply VCC.
Described zero cross detection circuit, adopt circuit as shown in Figure 3, resistance R 5 one ends are set connect AC power 220VAC, the other end connects the negative electrode of resistance R 6, resistance R 7 and diode D4, described resistance R 6 other end ground connection, the plus earth of described diode D4, described resistance R 7 other ends connect the port A. of capacitor C 3 and described single-chip microcomputer 4, described capacitor C 3 other end ground connection.Described zero-crossing detection circuit is by detecting the changing moment of the later signal of dividing potential drop from the low level to the high level or the zero crossing that is similar to low level changing moment conduct from high level.
Described temperature regulation circuit adopts circuit structure as shown in Figure 4, and adjustable resistance R11 is set, a termination power VCC, and the other end links to each other with capacitor C 5 with the port C of described single-chip microcomputer 4, described capacitor C 5 other end ground connection.At first, described single-chip microcomputer 4 output port C are low level, are capacitor C 5 discharges; Then, it is the input port that described single-chip microcomputer 4 is provided with port C, and adjustable resistance R11 gives capacitor C 5 chargings, and picks up counting, and along with the voltage rising at capacitor C 5 two ends, described single-chip microcomputer 4 detects port C and is input as high level, stops timing.Described single-chip microcomputer 4 was directly proportional with the resistance of described adjustable resistance R11 by the detected charging interval of port C.
Described adjustable resistance R11 is connected with described adjusting knob 3, regulates the resistance that described adjusting knob 3 can change described adjustable resistance R11, and the resistance of described adjustable resistance R11 is corresponding with the setting leaving air temp.
Described heating control circuit, controllable silicon T1 is set to be connected with described electrical heating wire, described controllable silicon T1 two ends parallel resistance R8 and capacitor C 4, the gate pole of described controllable silicon T1 connects the emitter stage of triode Q1 by resistance R 9, the colelctor electrode of described triode Q1 connects power supply VCC, and base stage connects the port B of described single-chip microcomputer 4 by resistance R 10.Described single-chip microcomputer 4 is regulated the power of described electrical heating wire by the ON time of controlling described controllable silicon T1.
In sum, the utility model provides a kind of warm hair-dryer of stepless temperature-regulating, and by Single-chip Controlling, by detecting the external setting-up temperature, the heating power of control electrical heating wire changes leaving air temp.This utility model is simple in structure, and dependable performance is easy to use.
Claims (6)
1. the warm hair-dryer of a stepless temperature-regulating, comprise and mould shell, power switch, adjusting knob, electrical heating wire is characterized in that: comprise the power circuit that power supply is provided, carry out central controlled single-chip microcomputer, the zero-crossing detection circuit that is connected with described single-chip microcomputer with the temperature regulation circuit that described single-chip microcomputer is connected, is used to control the heating control circuit of described electrical heating wire heating power.
2. the warm hair-dryer of a kind of stepless temperature-regulating as claimed in claim 1 is characterized in that: described power module, adopt half-bridge structure to carry out rectification and adopt voltage-stabiliser tube to carry out voltage stabilizing.
3. the warm hair-dryer of a kind of stepless temperature-regulating as claimed in claim 1, it is characterized in that: described zero cross detection circuit, resistance R 5 one ends are set connect AC power 220VAC, the other end connects the negative electrode of resistance R 6, resistance R 7 and diode D4, described resistance R 6 other end ground connection, the plus earth of described diode D4, described resistance R 7 other ends connect the port A. of capacitor C 3 and described single-chip microcomputer, described capacitor C 3 other end ground connection.
4. the warm hair-dryer of a kind of stepless temperature-regulating as claimed in claim 1, it is characterized in that: described temperature regulation circuit is provided with adjustable resistance R11, a termination power VCC, the other end links to each other with capacitor C 5 with the port C of described single-chip microcomputer, described capacitor C 5 other end ground connection.
5. the warm hair-dryer of a kind of stepless temperature-regulating as claimed in claim 4 is characterized in that: described adjustable resistance R11, be connected with described adjusting knob, and regulate the resistance that described adjusting knob can change described adjustable resistance R11.
6. the warm hair-dryer of a kind of temperature step-less adjustment as claimed in claim 1, it is characterized in that: described heating control circuit, controllable silicon T1 is set to be connected with described electrical heating wire, described controllable silicon T1 two ends parallel resistance R8 and capacitor C 4, the gate pole of described controllable silicon T1 connects the emitter stage of triode Q1 by resistance R 9, the colelctor electrode of described triode Q1 connects power supply VCC, and base stage connects the port B of described single-chip microcomputer by resistance R 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201616450U CN201752273U (en) | 2010-04-17 | 2010-04-17 | Stepless temperature regulating hair drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201616450U CN201752273U (en) | 2010-04-17 | 2010-04-17 | Stepless temperature regulating hair drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201752273U true CN201752273U (en) | 2011-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201616450U Expired - Fee Related CN201752273U (en) | 2010-04-17 | 2010-04-17 | Stepless temperature regulating hair drier |
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| Country | Link |
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| CN (1) | CN201752273U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595663A (en) * | 2012-01-20 | 2012-07-18 | 中山赛特奥日用科技有限公司 | Power-adjustable eclectic heater for heating volatile substance |
| CN103227500A (en) * | 2013-03-25 | 2013-07-31 | 江西赛维Ldk太阳能高科技有限公司 | Multi-wire sawing machine for silicon chips and power supply circuit thereof |
| CN107718559A (en) * | 2017-10-24 | 2018-02-23 | 黑龙江省科学院自动化研究所 | A kind of hand-held material extrusion equipment |
| CN111103909A (en) * | 2019-12-24 | 2020-05-05 | 追觅科技(上海)有限公司 | Electric hair drier circuit board temperature control circuit and method |
-
2010
- 2010-04-17 CN CN2010201616450U patent/CN201752273U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595663A (en) * | 2012-01-20 | 2012-07-18 | 中山赛特奥日用科技有限公司 | Power-adjustable eclectic heater for heating volatile substance |
| CN103227500A (en) * | 2013-03-25 | 2013-07-31 | 江西赛维Ldk太阳能高科技有限公司 | Multi-wire sawing machine for silicon chips and power supply circuit thereof |
| CN103227500B (en) * | 2013-03-25 | 2015-11-04 | 江西赛维Ldk太阳能高科技有限公司 | A kind of multi-wire cutting machine for silicon wafer and power supply circuits thereof |
| CN107718559A (en) * | 2017-10-24 | 2018-02-23 | 黑龙江省科学院自动化研究所 | A kind of hand-held material extrusion equipment |
| CN111103909A (en) * | 2019-12-24 | 2020-05-05 | 追觅科技(上海)有限公司 | Electric hair drier circuit board temperature control circuit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20110417 |