CN203386088U - Liquid mosquito-repellent incense heater control circuit with sensor - Google Patents
Liquid mosquito-repellent incense heater control circuit with sensor Download PDFInfo
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- CN203386088U CN203386088U CN201320493754.6U CN201320493754U CN203386088U CN 203386088 U CN203386088 U CN 203386088U CN 201320493754 U CN201320493754 U CN 201320493754U CN 203386088 U CN203386088 U CN 203386088U
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- voltage stabilizing
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Abstract
The utility model provides a liquid mosquito-repellent incense heater control circuit with a sensor, which belongs to the home appliance field. The working principle of the control circuit is that a 220-volt alternating current is connected with a fuse tube FUSE2, a resistor R1, a diode D2, a Zener diode D3 and capacitors C1, C2 to form an AC-DC conversion circuit; and a direct current source is supplied to a CPU and a temperature sampling circuit as their working power sources. A gear state can be changed through a key S1. Corresponding control temperature and time are selected. PTC heating temperature can be controlled by detecting a temperature sensor Rt.
Description
Technical field
The utility model relates to a kind of control circuit of isothermal liquid mosquito-repellent incense heater, particularly well heater.
Background technology
Existing vaporizer mosquito liquid well heater is due to a large amount of PTC heating elements that adopt.And the PTC Curie point has the duty that individual difference realizes unified temperature on can't stricti jurise.So that the speed difference that evaporates, produce the difference with liquid and repelling effect.
Summary of the invention
Each mosquito-repellent incense that allows that the utility model designs for the problems referred to above just has identical working temperature, and can control the belt sensor vaporizer mosquito liquid control circuit for heater of volatilization effect.
The utility model by NTC resistance R t, ptc heater, CPU, voltage stabilizing diode D3, diode D2 and D with AD, controllable silicon SCR, work gear indication LED lamp D1 D4 D5, resistance R 1-R5, capacitor C 1 C2, trigger button S1, protective tube FUSE2 form.It is characterized in that AC power pass through L the N place in circuit, the L utmost point connects protective tube FUSE2 mono-end, the protective tube FUSE2 other end is connected with resistance R 1 one ends, resistance R 1 other end is connected with diode D2 anode, and the other end of diode D2 is connected with voltage stabilizing element D3 negative pole, voltage stabilizing element D3 anode extremely is connected with power supply N.C1, C2 are simultaneously in parallel with voltage stabilizing element D3.Above circuit forms ac-dc conversion output direct current of voltage regulation.The direct-current power supply CPU work formed at voltage stabilizing element D3 negative pole also provides 3 gear LED light D1, D4, D5 power supply by R2, and 3 gear LED light negative terminals connect CPU LED control pin, form gear and control.Trigger button S1 mono-another termination of termination voltage stabilizing element D3 negative pole CPU KEY1 forms shift adjusting circuit.R3 mono-termination voltage stabilizing element D3 negative pole, the end of another termination CPUAD0 and NTC resistance R t, the sampling of another termination power of NTC resistance R t N utmost point formation temperature and testing circuit.The A end of controllable silicon SCR goes out to hold power taking from FUSE2, the G end of SCR connects current-limiting resistance R5 mono-end by the D6 negative terminal, and the R5 other end and CPU OUT are connected to form the SCR control loop, and controllable silicon SCR K end is connected with PC well heater one end, the PTC other end is connected with N, forms heating circuit.
The beneficial effects of the utility model are: the core control circuit of this well heater can be realized the unification of PTC working temperature, and the purpose of the simultaneity evaporated, be convenient for people to living needs.
Below by the drawings and specific embodiments, the utility model is described further
The accompanying drawing explanation
Fig. 1 is the utility model circuit diagram
Specific embodiments
Referring to Fig. 1, AC power by L the N place in circuit, the L utmost point connects protective tube FUSE2 mono-end, the protective tube FUSE2 other end is connected with resistance R 1 one ends, resistance R 1 other end is connected with diode D2 anode, and the other end of diode D2 is connected with voltage stabilizing element D3 negative pole, voltage stabilizing element D3 anode extremely is connected with power supply N.C1 C2 simultaneously in parallel with voltage stabilizing element D3.Above circuit forms ac-dc conversion output direct current of voltage regulation.The direct-current power supply CPU work formed at voltage stabilizing element D3 negative pole also provides 3 gear LED light D1, D4, D5 power supply by R2, and 3 gear LED light negative terminals connect CPU LED control pin, form gear and control.Trigger button S1 mono-another termination of termination voltage stabilizing element D3 negative pole CPU KEY1 forms shift adjusting circuit.R3 mono-termination voltage stabilizing element D3 negative pole, the end of another termination CPUAD0 and NTC resistance R t, the sampling of another termination power of NTC resistance R t N utmost point formation temperature and testing circuit.The A end of controllable silicon SCR goes out to hold power taking from FUSE2, the G end of SCR connects current-limiting resistance R5 mono-end by the D6 negative terminal, and the R5 other end and CPU OUT are connected to form the SCR control loop, and controllable silicon SCR K end is connected with ptc heater one end, the PTC other end is connected with N, forms heating circuit.
Principle of work:
Exchanging 220v meets protective tube FUSE2, resistance R 1, diode D2, voltage stabilizing diode D3 capacitor C 1, C2 and forms ac-dc conversion circuit.Direct current provides CPU and temperature sampling circuit working power.By button, S1 changes range state, selects corresponding control temperature and time, and by the detected temperatures sensor, Rt controls the PTC heating-up temperature.The core control circuit of this well heater can be realized the unification of PTC working temperature, and the purpose of the simultaneity evaporated, be convenient for people to living needs.
Claims (1)
1. the vaporizer mosquito liquid control circuit for heater of a belt sensor, by NTC resistance R t, ptc heater, CPU, voltage stabilizing diode D3 with AD, diode D2, D6 controllable silicon SCR, work gear indication LED lamp D1 D4 D5, resistance R 1-R5, capacitor C 1 C2, trigger button S1, protective tube FUSE2 form, it is characterized in that:
A. AC power by L the N place in circuit, the L utmost point connects protective tube FUSE2 mono-end, the protective tube FUSE2 other end is connected with resistance R 1 one ends, resistance R 1 other end is connected with diode D2 anode, and the other end of diode D2 is connected with voltage stabilizing element D3 negative pole, voltage stabilizing element D3 anode extremely is connected with power supply N, C1 C2 simultaneously in parallel with voltage stabilizing element D3, above circuit forms ac-dc conversion output direct current of voltage regulation;
B. the direct-current power supply CPU work formed at voltage stabilizing element D3 negative pole also provides 3 gear LED light D1, D4, D5 power supply by R2, and 3 gear LED light negative terminals connect CPU LED control pin, form gear to control;
C. trigger button S1 mono-another termination of termination voltage stabilizing element D3 negative pole CPU KEY1 forms shift adjusting circuit, R3 mono-termination voltage stabilizing element D3 negative pole, the end of another termination CPUAD0 and NTC resistance R t, the sampling of another termination power of NTC resistance R t N utmost point formation temperature and testing circuit;
D. the A of controllable silicon SCR end goes out to hold power taking from FUSE2, the G end of SCR connects current-limiting resistance R5 mono-end by the D6 negative terminal, and the R5 other end and CPU OUT are connected to form the SCR control loop, and controllable silicon SCR K end is connected with PC well heater one end, the PTC other end is connected with N, forms heating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493754.6U CN203386088U (en) | 2013-08-14 | 2013-08-14 | Liquid mosquito-repellent incense heater control circuit with sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493754.6U CN203386088U (en) | 2013-08-14 | 2013-08-14 | Liquid mosquito-repellent incense heater control circuit with sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203386088U true CN203386088U (en) | 2014-01-08 |
Family
ID=49874557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320493754.6U Expired - Lifetime CN203386088U (en) | 2013-08-14 | 2013-08-14 | Liquid mosquito-repellent incense heater control circuit with sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203386088U (en) |
-
2013
- 2013-08-14 CN CN201320493754.6U patent/CN203386088U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
| CX01 | Expiry of patent term |