CN102525267A - Control circuit of electric kettle - Google Patents
Control circuit of electric kettle Download PDFInfo
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- CN102525267A CN102525267A CN2011104026651A CN201110402665A CN102525267A CN 102525267 A CN102525267 A CN 102525267A CN 2011104026651 A CN2011104026651 A CN 2011104026651A CN 201110402665 A CN201110402665 A CN 201110402665A CN 102525267 A CN102525267 A CN 102525267A
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- circuit
- water level
- water
- main control
- control circuit
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Abstract
The invention discloses a control circuit of an electric kettle. The control circuit of the electric kettle comprises a main control chip, a power circuit, a temperature measuring circuit, a display circuit and a water level control circuit. The output ends of the power circuit, the temperature measuring circuit, the water level control circuit and the display circuit are connected with a corresponding port of the main control chip respectively. The water level in the kettle can be controlled by the water level control circuit in real time. In case that the water level in the kettle reaches an appointed water level, a water level probe outputs a low electric level to the I/O (Input/Output) port of the main control chip. Then the main control chip controls a water level switch to close a water inlet device. In the way, the phenomenon of water overflowing in the kettle when a user forgets to switch off water supply is effectively avoided. Meanwhile, the safety in use of the kettle is guaranteed.
Description
Technical field
The present invention relates to a kind of control circuit of electric kettle.
Background technology
Electric kettle is applied on the tea ceremony widely, and existing electric kettle can be provided with some safeguard measures, and like temperature detection, excessive low water level protection or the like, temperature detection is used to control the water-in-kettle temperature, and excessive low water level protection then prevents dry combustion method.And some electric kettle also can be provided with water supply installation now, just just can directly water filling in kettle, but, the situation that the water spill-over goes out occurs through regular meeting because water level control is set through button, and very inconvenient, and might cause the danger of leaking electricity.
Summary of the invention
The control circuit that the purpose of this invention is to provide a kind of electric kettle has added water level control, the situation that the water spill-over goes out when preventing to add water.
The present invention realizes above-mentioned purpose like this:
A kind of control circuit of electric kettle; Comprise main control chip, power circuit, temperature measurement circuit, display circuit and water-level control circuit, the output of power circuit, temperature measurement circuit, water-level control circuit and display circuit links to each other respectively at the main control chip corresponding ports.
Wherein, said water-level control circuit comprises water level probe, the I/O port that water level probe links to each other with power output end and is connected to main control chip simultaneously through pull-up resistor R26, and water level switch links to each other with another I/O port of main control chip.
Wherein, said temperature measurement circuit comprises temperature sensor, and the output serial connection current-limiting resistance of temperature sensor links to each other with the I/O port of main control chip.
Wherein, said display circuit comprises that charactron shows and indicator lamp shows, charactron shows and the indicator lamp demonstration links to each other with the I/O port of main control chip.
The invention has the beneficial effects as follows: can control the water level in the kettle in real time through water-level control circuit; Specify water level in case arrive; I/O port by water level probe output low level to main control chip; Turn-off water feed apparatus by main control chip control water level switch again, can prevent effectively that like this user from forgetting the situation that supplies water and cause the water-in-kettle spill-over to go out of closing, and also can ensure the safety that kettle uses simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is a wiring diagram of the present invention.
The specific embodiment
With reference to Fig. 1, Fig. 2; A kind of control circuit of electric kettle; Comprise main control chip, power circuit, temperature measurement circuit, display circuit and water-level control circuit, the output of power circuit, temperature measurement circuit, water-level control circuit and display circuit links to each other respectively at the main control chip corresponding ports.Can control the water level in the kettle in real time through water-level control circuit; Specify water level in case arrive; I/O port by water level probe output low level to main control chip; Turn-off water feed apparatus by main control chip control water level switch again, can prevent effectively that like this user from forgetting the situation that supplies water and cause the water-in-kettle spill-over to go out of closing, and also can ensure the safety that kettle uses simultaneously.
Wherein, said water-level control circuit comprises water level probe, the I/O port that water level probe links to each other with power output end and is connected to main control chip simultaneously through pull-up resistor R26, and water level switch links to each other with another I/O port of main control chip.
Wherein, said temperature measurement circuit comprises temperature sensor, and the output serial connection current-limiting resistance of temperature sensor links to each other with the I/O port of main control chip.
Wherein, said display circuit comprises that charactron shows and indicator lamp shows, charactron shows and the indicator lamp demonstration links to each other with the I/O port of main control chip.
Claims (4)
1. the control circuit of an electric kettle; It is characterized in that: comprise main control chip, power circuit, temperature measurement circuit, display circuit and water-level control circuit, the output of power circuit, temperature measurement circuit, water-level control circuit and display circuit links to each other respectively at the main control chip corresponding ports.
2. the control circuit of a kind of electric kettle according to claim 1; It is characterized in that: said water-level control circuit comprises water level probe and water level switch; The I/O port that water level probe links to each other with power output end and is connected to main control chip simultaneously through pull-up resistor R26, water level switch links to each other with another I/O port of main control chip.
3. the control circuit of a kind of electric kettle according to claim 1, it is characterized in that: said temperature measurement circuit comprises temperature sensor, the output serial connection current-limiting resistance of temperature sensor links to each other with the I/O port of main control chip.
4. the control circuit of a kind of electric kettle according to claim 1 is characterized in that: said display circuit comprises that charactron shows and indicator lamp shows, charactron shows and indicator lamp shows and links to each other with the I/O port of main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104026651A CN102525267A (en) | 2011-12-07 | 2011-12-07 | Control circuit of electric kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104026651A CN102525267A (en) | 2011-12-07 | 2011-12-07 | Control circuit of electric kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102525267A true CN102525267A (en) | 2012-07-04 |
Family
ID=46334282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104026651A Pending CN102525267A (en) | 2011-12-07 | 2011-12-07 | Control circuit of electric kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102525267A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599805A (en) * | 2012-01-13 | 2012-07-25 | 张永超 | Control circuit of electric kettle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135143A (en) * | 1983-02-01 | 1984-08-22 | Ti Russell Hobbs Ltd | Electric heating appliance |
| GB2207503A (en) * | 1987-07-18 | 1989-02-01 | Emi Plc Thorn | Boiling detection device |
| CN101169661A (en) * | 2007-11-22 | 2008-04-30 | 广东亿龙电器股份有限公司 | Liquid level induction control device and electric appliance possessing the liquid level induction control device |
| CN201184967Y (en) * | 2008-04-24 | 2009-01-21 | 顾永洪 | Control circuit for multifunctional instantaneously-heated type water jug |
| WO2009060192A2 (en) * | 2007-11-07 | 2009-05-14 | Otter Controls Limited | Liquid heating vessel and control |
| CN201822620U (en) * | 2010-09-20 | 2011-05-11 | 广东浩特电器有限公司 | Automatic heat-preserving electric heating kettle |
| CN202408472U (en) * | 2011-12-07 | 2012-09-05 | 张永超 | Control circuit of electric kettle |
-
2011
- 2011-12-07 CN CN2011104026651A patent/CN102525267A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135143A (en) * | 1983-02-01 | 1984-08-22 | Ti Russell Hobbs Ltd | Electric heating appliance |
| GB2207503A (en) * | 1987-07-18 | 1989-02-01 | Emi Plc Thorn | Boiling detection device |
| WO2009060192A2 (en) * | 2007-11-07 | 2009-05-14 | Otter Controls Limited | Liquid heating vessel and control |
| CN101169661A (en) * | 2007-11-22 | 2008-04-30 | 广东亿龙电器股份有限公司 | Liquid level induction control device and electric appliance possessing the liquid level induction control device |
| CN201184967Y (en) * | 2008-04-24 | 2009-01-21 | 顾永洪 | Control circuit for multifunctional instantaneously-heated type water jug |
| CN201822620U (en) * | 2010-09-20 | 2011-05-11 | 广东浩特电器有限公司 | Automatic heat-preserving electric heating kettle |
| CN202408472U (en) * | 2011-12-07 | 2012-09-05 | 张永超 | Control circuit of electric kettle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599805A (en) * | 2012-01-13 | 2012-07-25 | 张永超 | Control circuit of electric kettle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120704 |