CN1658103A - Shock-proof energy-saving controller for electric cooker - Google Patents
Shock-proof energy-saving controller for electric cooker Download PDFInfo
- Publication number
- CN1658103A CN1658103A CN 200510049152 CN200510049152A CN1658103A CN 1658103 A CN1658103 A CN 1658103A CN 200510049152 CN200510049152 CN 200510049152 CN 200510049152 A CN200510049152 A CN 200510049152A CN 1658103 A CN1658103 A CN 1658103A
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- CN
- China
- Prior art keywords
- electric cooker
- ground wire
- electric
- key
- circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Abstract
A shock-proof energy-saving controller for electric-cooker is made up of a one-chip computer and the executive system. In this product, the input end on the one-chip computer is linked with electricity-measuring device for the ground wire, while the output end is linked with control circuit in the electric heater of the electric-cooker. The control circuit includes a switch pipe and a relay, and the relay's normally open contact is connected with the inlet line and the outgoing line on the electric source. The voltage of the monitor for the zero line of ground wire is reduced by a voltage transformer or a resistor-capacitor unit across the zero line and the ground wire, and the diode will be linked with the base electrode of the switch ripe after rectification and voltage-stabilizing. In the electric-cooker controlling system, an hour-setting key, a minute-setting key and a night-electricity key are located. This invention can make the electric-cooker working during valley-electricity-time, so as to make full use of valley-electricity and save resources. At the same time, if the ground wire is electrified, it can cut off the ground wire and the electric source in time, which means, this product can protect personal safety in the situation that the ground wire lose efficacy or the ground connection is insecure.
Description
Technical field the invention belongs to the singlechip technology electric control Application for Field of being in.
Before background technology the invention applying date, no matter electric cooker is that machinery control or Electronic Control are not all established the night letter key, it is the period work of paddy electricity in the night letter period automatically that electric cooker is not had, use the paddy electricity to make troubles for the user that the peak valley ammeter is housed, also national paddy section electric power resource is not fully utilized.Simultaneously because the earth wire charged protecting that product lacks pipe ground wire and basic insulation when losing efficacy simultaneously brings hidden danger for user's safety.
The purpose of summary of the invention the invention provides a kind of shock-proof energy-saving controller for electric cooker.
The invention solves the technical scheme that its technical matters adopts: comprise single-chip microcomputer and topworks, the single-chip microcomputer input end is connected with earth wire charged testing device, the single-chip microcomputer output terminal is connected with electric cooker electric heater control circuit, this control circuit comprises switching tube and relay composition, the inlet wire and the outlet of the normally opened contact serial connection power supply of relay, zero earth line test device is by transformer or the resistance-capacitance depressurization of cross-over connection between zero line and ground wire, be connected with the base stage of switching tube after diode rectification and the voltage stabilizing, in the electric cooker control device, be provided with key hour is set, minute key is set and night letter is provided with key.Mu balanced circuit and switching tube that earth wire charged testing device is made up of transformer or resistance-capacitance depressurization circuit, diode rectification and stabilivolt are formed, and its input end cross-over connection is between zero-power line and ground wire, and its output terminal is connected with the single-chip microcomputer input end.Hour, minute are set in the electric cooker control device key and night letter key are set, be connected with the single-chip processor i/o input port respectively, the single-chip processor i/o output port connects on-off circuit, and on-off circuit connects the switch executive circuit, and the normally opened contact of switch executive circuit connects the electric cooker power supply.
The beneficial effect of the invention is: the invention may command electric cooker is in the period work of paddy electricity; help making full use of paddy; economize on resources; have simultaneously when ground wire electrification and can cut off ground wire and electric cooker power supply in real time; promptly ground connection under the unreliable or earth wire failure environment to personal safety protection, be widely used in machinery or the electronics electric cooker control device.
Description of drawings Fig. 1 is the electrical schematic diagram of the invention.Single-chip microcomputer is a 8-bit microcontroller among the figure, adopts the PIC16C57 of U.S. MICROCHIP company.E
INBe ground wire end of incoming cables, E
OUTBe ground wire leading-out terminal, L
INBe live wire end of incoming cables, L
OUTBe the live wire leading-out terminal, N is a zero line, and 12V is the 12V direct supply.G
1, G
2Be switching tube, J
1, J
2Be relay, K
1Be a hour key, K
2Be a minute key, K is the night letter key.T is power transformer, R
1C
1Be capacitance-resistance device, D
1～D
4Be commutator tube, DW is a stabilivolt 7805, Q
0Be switching tube 9013.Capacitor C
0
Embodiment is consulted Fig. 1.Cross-over connection is in zero line N and ground wire E
INBetween potential difference detecting device by transformer T or capacitance-resistance R
1C
1(among the figure shown in the dotted line) step-down, D
1～D
4Diode rectification, capacitor C
0, stabilivolt the DW mu balanced circuit and the switching tube Q that form
0Form switching tube Q
0Be connected in the single-chip processor i/o input port, I/O output port gauge tap executive circuit Q
1, Q
2, J
1, J
2The relay normally closed contact connects ground wire E
INAnd E
OUT, normally opened contact connects electric cooker live wire L
INAnd L
OUTHour key K
1, minute key K
2And night letter key K is connected with the I/O input end of single-chip microcomputer respectively.LCD is that liquid crystal display is connected with the single-chip processor i/o output terminal.
Claims (3)
1, a kind of shock-proof energy-saving controller for electric cooker, comprise single-chip microcomputer and topworks, it is characterized in that the single-chip microcomputer input end is connected with earth wire charged testing device, the single-chip microcomputer output terminal is connected with electric cooker electric heater control circuit, this control circuit comprises switching tube and relay composition, the inlet wire and the outlet of the normally opened contact serial connection power supply of relay, zero earth line test device is by transformer or the resistance-capacitance depressurization of cross-over connection between zero line and ground wire, be connected with the base stage of switching tube after diode rectification and the voltage stabilizing, in the electric cooker control device, be provided with key hour is set, minute key is set and night letter is provided with key.
2, a kind of shock-proof energy-saving controller for electric cooker according to claim 1, it is characterized in that mu balanced circuit and switching tube that earth wire charged testing device is made up of transformer or resistance-capacitance depressurization circuit, diode rectification and stabilivolt form, its input end cross-over connection is between zero-power line and ground wire, and its output terminal is connected with the single-chip microcomputer input end.
3, a kind of shock-proof energy-saving controller for electric cooker according to claim 1, it is characterized in that being provided with in the electric cooker control device hour, minute key and night letter key are set, be connected with the single-chip processor i/o input port respectively, the single-chip processor i/o output port connects on-off circuit, on-off circuit connects the switch executive circuit, and the normally opened contact of switch executive circuit connects the electric cooker power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049152 CN1658103A (en) | 2005-03-01 | 2005-03-01 | Shock-proof energy-saving controller for electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049152 CN1658103A (en) | 2005-03-01 | 2005-03-01 | Shock-proof energy-saving controller for electric cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1658103A true CN1658103A (en) | 2005-08-24 |
Family
ID=35007643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510049152 Pending CN1658103A (en) | 2005-03-01 | 2005-03-01 | Shock-proof energy-saving controller for electric cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1658103A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449430C (en) * | 2007-03-13 | 2009-01-07 | 杭州电子科技大学 | Electric rice cooker power-saving circuit |
| CN102436191A (en) * | 2011-11-03 | 2012-05-02 | 海尔集团公司 | Safe power-saving power supply control circuit and control method |
-
2005
- 2005-03-01 CN CN 200510049152 patent/CN1658103A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449430C (en) * | 2007-03-13 | 2009-01-07 | 杭州电子科技大学 | Electric rice cooker power-saving circuit |
| CN102436191A (en) * | 2011-11-03 | 2012-05-02 | 海尔集团公司 | Safe power-saving power supply control circuit and control method |
| CN102436191B (en) * | 2011-11-03 | 2017-06-23 | 青岛海尔滚筒洗衣机有限公司 | A kind of control method of power control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |