CN105717816A - Hand-touch type electric kettle delay power supply controller - Google Patents
Hand-touch type electric kettle delay power supply controller Download PDFInfo
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- CN105717816A CN105717816A CN201610192196.8A CN201610192196A CN105717816A CN 105717816 A CN105717816 A CN 105717816A CN 201610192196 A CN201610192196 A CN 201610192196A CN 105717816 A CN105717816 A CN 105717816A
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- power supply
- electric kettle
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- time base
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses a hand-touch type electric kettle delay power supply controller.The controller is characterized by comprising a 220 V AC power supply, a 120 V half-wave rectifying, filtering and voltage stabilizing power supply, a contact start single-stable-state circuit, and an electric kettle power supply socket control circuit.The type selected by a time-base circuit IC1 in the touch start single-stable-state circuit is NE555.For the defect that an ordinary electric kettle can not be automatically powered off, the time-base circuit is erected into the single-stable-state timing circuit, and therefore the electric kettle can be automatically powered off after the set time of the electric kettle is up, and the electricity consumption safety of the electric kettle is ensured.
Description
Technical field
The invention belongs to electronic auto-control technology field, relate to a kind of hands touch electric kettle time delay power-supply controller of electric.
Background technology
Common electric kettle is widely used by family and office because of cheap, easy to operate, because of the function that electric kettle does not almost all automatically power off, after water is boiled, once not cut off the electricity supply in time, suddenly encounter busy go out or watch TV and forget close insulating pot power supply, light then burn out the heater strip in electric kettle, waste much unnecessary electric power；Heavy then the likely security incident such as initiation fire.
For the drawbacks described above that common electric kettle exists, hands touch electric kettle time delay power-supply controller of electric of the present invention, time base circuit is utilized to be barricaded as mono-stable timing circuit, make electric kettle after the time set arrives, the power supply of electric kettle can be automatically cut off, it is ensured that the Electrical Safety of electric kettle.
Hands touch electric kettle time delay power-supply controller of electric of the present invention described further below is involved necessity, guardian technique content in implementation process.
Summary of the invention
Goal of the invention and beneficial effect: there is the defect that can not automatically power off for common electric kettle, hands touch electric kettle time delay power-supply controller of electric of the present invention, time base circuit is utilized to be barricaded as mono-stable timing circuit, make electric kettle after the time set arrives, the power supply of electric kettle can be automatically cut off, it is ensured that the Electrical Safety of electric kettle.
Circuit operation principle: hands touch electric kettle time delay power-supply controller of electric of the present invention, it adopts time base circuit IC1 as core parts, and it is connected into mono-stable timing circuit, the non-inductive voltage of hands touched electrode C M at ordinary times, timing capacitor C2 has been discharged by the 7th foot of time base circuit IC1, the 3rd foot output low level of time base circuit IC1, at this moment the coil of DC relay J does not work without electricity, then the normally opened contact J-1 of DC relay J is in release conditions, electric kettle supply socket CZ power-off, insulating pot electrical heating wire does not work without electricity.
When to boil water, after touching hand touched electrode C M with finger, the 2nd foot that the noise signal of human body is added to time base circuit IC1 by isolation capacitance C1 triggers end, the 3rd foot making time base circuit IC1 is become high level from low level, at this moment the coil of DC relay J is because obtaining electric starting working, then the normally opened contact J-1 of DC relay J is in attracting state, obtains electric beginning to warm up in the electric kettle supply socket CZ at this moment controlled by normally opened contact J-1.Meanwhile, the internal cut-off of the 7th foot of time base circuit IC1, DC source is charged to timing capacitor C2 by potentiometer RP and resistance R1, and at this moment monostable circuit starts timing.
When timing capacitor C2 powers on and presses rise to direct current power source voltage 2/3,7th foot of time base circuit IC1 is discharged by timing capacitor C2, the 3rd foot making time base circuit IC1 is become low level from high level, monostable circuit timing process terminates, electric kettle supply socket CZ power-off, electric kettle electrical heating wire stops heating because of power-off.
Technical characteristic: hands touch electric kettle time delay power-supply controller of electric, it includes 220V alternating current power supply, 12V halfwave rectifier filtering voltage regulation power supply, touches startup monostable circuit, insulating pot power socket control circuit, it is characterised in that:
Touch and start mono-stable timing circuit: it is by hands touched electrode C M, isolation capacitance C1, time base circuit IC1, timing capacitor C2, potentiometer RP and resistance R1 composition, the model that time base circuit IC1 selects is NE555, 2nd foot of time base circuit IC1 was connected isolation capacitance C1 and was taken over touched electrode C M, 4th foot of time base circuit IC1 and the 8th foot connection circuit positive pole VCC, 6th foot of time base circuit IC1 and the positive pole of the 7th foot and timing capacitor C2 connect one end of potentiometer RP by resistance R1, the other end of potentiometer RP and movable end connection circuit positive pole VCC thereof, the negative pole of timing capacitor C2 and the 1st foot connection circuit ground GND of time base circuit IC1；
Insulating pot power socket control circuit: it is by DC relay J, protection diode D1, electric kettle supply socket CZ forms, 3rd foot of time base circuit IC1 connects one end of DC relay J coil and the negative pole of protection diode D1, the other end of DC relay J coil is connected with circuit ground GND with the positive pole of protection diode D1, the normally opened contact J-1 stationary contact of DC relay J meets the live wire end L of 220V alternating current power supply, the normally opened contact J-1 movable contact of DC relay J connects the fire line terminal of electric kettle supply socket CZ, the zero terminal connection circuit ground GND of electric kettle supply socket CZ, the protecting field line terminals of electric kettle supply socket CZ meets protection ground wire PE；
12V halfwave rectifier filtering voltage regulation power supply: it is by decompression capacitor C4, bleeder resistance R2 and silicon rectifier diode D2, silicon voltage regulator diode DW, electrochemical capacitor C3 forms, the voltage stabilizing parameter of silicon voltage regulator diode DW is 12V, the live wire end L of 220V alternating current power supply connects one end of decompression capacitor C4 and one end of bleeder resistance R2, the positive pole of the other end of decompression capacitor C4 and another termination silicon rectifier diode D2 of bleeder resistance R2, the negative pole of silicon rectifier diode D2 connects the negative pole of silicon voltage regulator diode DW and the positive pole of electrochemical capacitor C3, the positive pole of silicon voltage regulator diode DW and the negative pole connection circuit ground GND of electrochemical capacitor C3；
The positive pole of 12V halfwave rectifier filtering voltage regulation power supply is connected with circuit anode VCC, and the negative pole of 12V halfwave rectifier filtering voltage regulation power supply is connected with the zero line side N of 220V alternating current power supply and circuit ground GND.
Accompanying drawing explanation
Accompanying drawing 1 is hands one embodiment circuit fundamental diagram of touch electric kettle time delay power-supply controller of electric provided by the invention.
Detailed description of the invention
Hands touch electric kettle time delay power controller circuit fundamental diagram shown in accompanying drawing 1 and accompanying drawing explanation, and annexation between components and parts in each several part circuit described in summary of the invention, and the components and parts technical parameter described in embodiment requires and circuit production main points are carried out realizing the present invention, below in conjunction with embodiment, the correlation technique of the present invention is further described.
The technical parameter of components and parts and selection requirement thereof
IC1 is time base circuit, and model is: NE555 or selection KA555 type time base circuit；Time base circuit IC1 is 8 foot dual inline type DIP encapsulation, and each foot function is: the 1st foot is circuit ground GND；2nd foot is for triggering end；3rd foot outfan；4th pin preset end；5th foot is for controlling voltage；6th foot thresholding (threshold value)；7th foot is discharge end；8th foot connection circuit positive pole VCC；
D1 is protection diode, and the model of selection is 1N4148；
D2 is silicon rectifier diode, and the model of selection is 1N4007；
WD is Zener diode, and its voltage stabilizing technique parameter is 12V, power 1W；
The resistance of potentiometer RP is 510K Ω；
Resistance R1 selects 1/4W fixed carbon resister, and its resistance is 10K Ω；The resistance 620K Ω of bleeder resistance R2, power are the metalfilmresistor of 1W；
C1 is isolation capacitance, and its capacity is 6800PF；C2 is timing capacitor, and the vertical type aluminum shell electrochemical capacitor selecting pressure voltage to be 25V, its capacity is 1500 μ F/25V；C3 is filter capacitor, and capacity is 1000 μ F/25V；C4 is decompression capacitor, and its capacity is 0.68 μ F/450V；
J is DC relay, and the model of selection is JQX-13F-12V.
Circuit production main points, circuit debugging and using method
Because the circuit structure of hands touch electric kettle time delay power-supply controller of electric is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation in accompanying drawing 1 is welded to specifications, physical connection line and welding quality are through going through after correctly, and the circuit of the present invention has only to carry out simple debugging and gets final product normal operation；
Owing to 220V alternating current power supply adopts electric capacity pressure drop mode, in circuit debugging process, human body cuts the metal part that can not directly touch circuit board and all components and parts, to avoid electric shock accidents；
The length of delay time is determined by the capacity of resistance R1 and the resistance of potentiometer RP, timing capacitor C2, by the component values recommended in T=1.1 (RP+R1) × C2 formula and embodiment, the timing maximum duration of mono-stable timing circuit about 22 minutes；
The determination of delay time, according to the water flask average boiled required time, is then further added by 3～4 minutes, it is ensured that after water boiled a few minutes, electric kettle can automatically power off；
Require that the power inserting insulating pot in electric kettle supply socket CZ controls at below 2000W.
The circuit structure design of the present invention, components' placement; and its face shaping design and size etc. thereof are not all the key technologies of the present invention; guardian technique content that neither be claimed; because not affecting the realization of specific implementation process of the present invention and goal of the invention, therefore do not illustrate one by one in the description.
Claims (1)
1. a hands touch electric kettle time delay power-supply controller of electric, it includes 220V alternating current power supply, 12V halfwave rectifier filtering voltage regulation power supply, touches startup monostable circuit, insulating pot power socket control circuit, it is characterised in that:
Described touch starts mono-stable timing circuit by hands touched electrode C M, isolation capacitance C1, time base circuit IC1, timing capacitor C2, potentiometer RP and resistance R1 composition, the model that time base circuit IC1 selects is NE555, 2nd foot of time base circuit IC1 was connected isolation capacitance C1 and was taken over touched electrode C M, 4th foot of time base circuit IC1 and the 8th foot connection circuit positive pole VCC, 6th foot of time base circuit IC1 and the positive pole of the 7th foot and timing capacitor C2 connect one end of potentiometer RP by resistance R1, the other end of potentiometer RP and movable end connection circuit positive pole VCC thereof, the negative pole of timing capacitor C2 and the 1st foot connection circuit ground GND of time base circuit IC1；
Described insulating pot power socket control circuit is by DC relay J, protection diode D1, electric kettle supply socket CZ forms, 3rd foot of time base circuit IC1 connects one end of DC relay J coil and the negative pole of protection diode D1, the other end of DC relay J coil is connected with circuit ground GND with the positive pole of protection diode D1, the normally opened contact J-1 stationary contact of DC relay J meets the live wire end L of 220V alternating current power supply, the normally opened contact J-1 movable contact of DC relay J connects the fire line terminal of electric kettle supply socket CZ, the zero terminal connection circuit ground GND of electric kettle supply socket CZ, the protecting field line terminals of electric kettle supply socket CZ meets protection ground wire PE；
Described 12V halfwave rectifier filtering voltage regulation power supply is by decompression capacitor C4, bleeder resistance R2 and silicon rectifier diode D2, silicon voltage regulator diode DW, electrochemical capacitor C3 forms, the voltage stabilizing parameter of silicon voltage regulator diode DW is 12V, the live wire end L of 220V alternating current power supply connects one end of decompression capacitor C4 and one end of bleeder resistance R2, the positive pole of the other end of decompression capacitor C4 and another termination silicon rectifier diode D2 of bleeder resistance R2, the negative pole of silicon rectifier diode D2 connects the negative pole of silicon voltage regulator diode DW and the positive pole of electrochemical capacitor C3, the positive pole of silicon voltage regulator diode DW and the negative pole connection circuit ground GND of electrochemical capacitor C3；
The positive pole of described 12V halfwave rectifier filtering voltage regulation power supply is connected with circuit anode VCC, and the negative pole of 12V halfwave rectifier filtering voltage regulation power supply is connected with the zero line side N of 220V alternating current power supply and circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192196.8A CN105717816A (en) | 2016-03-28 | 2016-03-28 | Hand-touch type electric kettle delay power supply controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192196.8A CN105717816A (en) | 2016-03-28 | 2016-03-28 | Hand-touch type electric kettle delay power supply controller |
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| Publication Number | Publication Date |
|---|---|
| CN105717816A true CN105717816A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610192196.8A Pending CN105717816A (en) | 2016-03-28 | 2016-03-28 | Hand-touch type electric kettle delay power supply controller |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050258313A1 (en) * | 2004-04-30 | 2005-11-24 | Phase2 Concepts, Inc. | Electronic code follower relay |
| CN102361448A (en) * | 2011-08-23 | 2012-02-22 | 何林 | Touch time switch prepared by using time-base circuit NE555 |
| CN103389663A (en) * | 2013-06-27 | 2013-11-13 | 何林 | Timing switch of touch electric kettle |
| CN105071149A (en) * | 2015-08-13 | 2015-11-18 | 何林 | Electromagnetic stove unattended automatic power-off dedicated socket |
-
2016
- 2016-03-28 CN CN201610192196.8A patent/CN105717816A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050258313A1 (en) * | 2004-04-30 | 2005-11-24 | Phase2 Concepts, Inc. | Electronic code follower relay |
| CN102361448A (en) * | 2011-08-23 | 2012-02-22 | 何林 | Touch time switch prepared by using time-base circuit NE555 |
| CN103389663A (en) * | 2013-06-27 | 2013-11-13 | 何林 | Timing switch of touch electric kettle |
| CN105071149A (en) * | 2015-08-13 | 2015-11-18 | 何林 | Electromagnetic stove unattended automatic power-off dedicated socket |
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Application publication date: 20160629 |
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