CN103123469A - External automatic controller applied to electric food warmer - Google Patents
External automatic controller applied to electric food warmer Download PDFInfo
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- CN103123469A CN103123469A CN2011103711092A CN201110371109A CN103123469A CN 103123469 A CN103123469 A CN 103123469A CN 2011103711092 A CN2011103711092 A CN 2011103711092A CN 201110371109 A CN201110371109 A CN 201110371109A CN 103123469 A CN103123469 A CN 103123469A
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Abstract
The invention relates to an external automatic controller applied to electric food warmers. The external automatic controller applied to electric food warmers is characterized in that a relay J 1 serves as a circuit breaker which can be switched on and off to control a power supply output circuit, the time and duration of switching on and off are controlled through a single chip I C 1 according to the states of a power supply control switch K 1 and a function shifting switch K 2, a power supply input circuit is stepped down and rectified through a stepping down and rectifying circuit and a secondary stepping down circuit and connected to the power supply input interface of the single chip I C 1, and other I/O interfaces of the single chip I C 1 are respectively connected with the power supply control switch K 1, the function shifting switch K 2, an indicating device and the relay J 1. The relay J 1 is connected to the L line of the power supply input circuit, L line of the power supply output circuit and the stepping down and rectifying circuit. The external automatic controller applied to electric food warmers has the advantages of having various control functions for cooking, durable services, being safe, suitable for electric heating appliances with high power, and widely used for automation control of household electric heating appliances.
Description
Technical field
The present invention relates to a kind of controller, specifically a kind of external automatic controller for electric food warmer.
Background technology
Current, along with the development of electronic technology and reaching its maturity of electron controls technology, various Electrothermic kitchen tools such as electric cooker, electric cooking pot, electric pressure cooking saucepan etc. enter people's life in succession, wherein from only having the simple function electric cooker of energising heating, the disconnected heat of outage, to have regularly, the multi-functional full-automatic electric food warmer of insulation, boiling automatically etc., of a great variety, complete.But existing Electrothermic kitchen tool major part is that control circuit is integrated in kitchen tools is inner and realize automatic control to Electrothermic kitchen tool by being located at control panel on kitchen tools.Such Electrothermic kitchen tool makes easily aging, scaling loss of control apparatus because control circuit closely is in hot environment for a long time, even has the potential safety hazard of easy short circuit, blast on fire.Particularly for the high power electrothermal kitchen tools, above-mentioned limitation is more obvious.
Notification number is CN 2358795Y, the day for announcing is that the utility model patent on January 19th, 2000 also discloses a kind of automatic controller for common electric cooker, this controller adopts external automatic controller and temperature measurement circuit sensor to control energising and the auto-breaking time of ordinary electric rice cooker, thereby realizes the automatic control to ordinary electric rice cooker.This patent can overcome the above-mentioned limitation of existing Electrothermic kitchen tool, can't automatic controlled electric heating kitchen tools heating power but exist, control the limitation of function singleness.
Summary of the invention
For overcoming the limitation of prior art, the purpose of this invention is to provide and a kind ofly have multiple culinary art and control function, safe, durable and be applicable to the external automatic controller of high power electrothermal pot.
to achieve these goals, the present invention adopts following technical scheme: a kind of external automatic controller for electric food warmer, include housing, be assembled in the control circuit components and parts of enclosure interior, the power supply input circuit that connects civil power, the power output circuit that connects electric food warmer, be located at gauge tap and indicating device on housing, it is characterized in that: by the circuit switching of relay J 1 as power output circuit shutoff and conducting, it turn-offs and time and the lasting duration of conducting are controlled according to the state of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1, power supply input circuit is through step-down rectifying circuit, the power input interface of access single-chip microcomputer IC1 after the step-down rectifier of secondary reduction voltage circuit, other I/O interface of single-chip microcomputer IC1 is connected respectively to power control switch K1, function change-over switch K2, indicating device and relay J 1, described relay J 1 is also connected to the L line of power supply input circuit, L line and the step-down rectifying circuit of power output circuit.
Preferably, described step-down rectifying circuit is by capacitor C 1, diode D1, and stabilivolt D2, D3, capacitor C 2 consists of.
Preferably, described secondary reduction voltage circuit is made of three-terminal voltage-stabilizing pipe IC2 and capacitor C 3.
Preferably, described indicating device by LED1～LED5 totally 5 pilot lamp form, respectively corresponding " insulation ", " slow fire ", " slow fire ", " intense fire ", " quick-fried " 5 function shelves.
Preferably, described single-chip microcomputer IC1 is also connected to sound prompt device.
Preferably, described sound prompt device is indicative hummer.
Preferably, described single-chip microcomputer IC1 is Samsung S3F9454BZZ-DK94 integrated manipulator.
Preferably, described relay J 1 is electromagnetic relay.
Preferably, described gauge tap K1, function change-over switch K2 are touch switch.
Preferably, described function change-over switch K2 circulation is provided with " insulation ", " slow fire ", " slow fire ", " intense fire ", " quick-fried " 5 function shelves.
Adopt technique scheme compared with prior art, it is characterized in that being controlled according to the state of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1 time and the lasting duration of power output circuit turn-on and turn-off, function change-over switch K2 circulation is provided with insulation, slow fire, slow fire, intense fire, 5 function shelves of quick-fried, each function shelves is controlled respectively time and the lasting duration of power output circuit turn-on and turn-off, thereby realizes the automatic function control to the electric food warmer that is connected to power output circuit; Secondly, each function shelves is also to corresponding pilot lamp should be arranged, and when electric food warmer was in certain function shelves, corresponding pilot lamp was bright, and operation interface is directly perceived, convenient; In addition, the present invention adopts external, avoids that control circuit is too closely and easily aging apart from heater, the defective of scaling loss, has advantages of safety, durable, also is applicable to the control to the high power electrothermal pot simultaneously, highly versatile.
Description of drawings
Fig. 1 is the structural representation of shell of the present invention.
Fig. 2 is circuit block diagram of the present invention.
Fig. 3 is circuit theory diagrams of the present invention.
In figure: 10-controller housing, 20-power supply input circuit, 21-power supply input circuit interface, the 30-step-down rectifying circuit, 40-secondary reduction voltage circuit, 50-single-chip microcomputer IC1, the 60-indicating device, 61-LED1,62-LED2,63-LED3,64-LED4,65-LED5,70-power control switch K1,80-function change-over switch K2,90-sound prompt device, 100-relay J 1,110-power output circuit, 111-power output circuit interface.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, be provided with power control switch K1, function change-over switch K2 and indicating device on controller housing, indicating device by LED1～LED5 totally 5 LED light consist of, also be provided with power supply input circuit interface and power output circuit interface on controller housing, be electrically connected to mains supply and electric food warmer respectively.
As shown in Fig. 2,3, the power supply input circuit that connects civil power accesses the power input interface of single-chip microcomputer IC1 after the step-down rectifier of step-down rectifying circuit, secondary reduction voltage circuit, other I/O interface of single-chip microcomputer IC1 is connected respectively to indicating device, power control switch K1, function change-over switch K2, relay J 1 and sound prompt device, and relay is also connected to the L line of power supply input circuit, L line and the step-down rectifying circuit of power output circuit.Wherein:
Single-chip microcomputer IC1 adopts Samsung S3F9454BZZ-DK94 integrated manipulator.
Power supply input circuit connects the 220V civil power by the power supply input circuit interface.
Step-down rectifying circuit is by capacitor C 1, diode D1, stabilivolt D2 and D3, and capacitor C 2 consists of, and it becomes the 12V direct current with the step-down of 220V alternating current, rectification, filtering provides working power for relay J 1.
The secondary reduction voltage circuit is made of three-terminal voltage-stabilizing pipe IC2, capacitor C 3, and it reduces to the 5V direct current with the 12V direct current, and it is connected to the power input interface of single-chip microcomputer IC1, and IC1 provides working power for single-chip microcomputer.
Indicating device by LED1～LED5 totally 5 LED light consist of, it is connected to 18,17,16,15,13 and No. 14 I/O lines of single-chip microcomputer IC1, and indicating control is in " insulation ", " slow fire ", " slow fire ", " intense fire ", " quick-fried " 5 kinds of duties respectively.
Sound prompt device is made of hummer MICROPHONE1, and No. 12 I/O lines that it is connected to function change-over switch K2 and single-chip microcomputer IC1 when the user presses function change-over switch K2, send the buzzing voice prompt.
Relay J 1 adopts electromagnetic relay, the one supply pin is connected to No. 19 I/O lines of single-chip microcomputer IC1 through triode Q1, resistance R 2, another supply pin is connected to the L line of power supply input circuit and the L line of power output circuit, and the shutoff of relay J 1 and conducting are controlled according to the state of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1.
Power control switch K1 and function change-over switch K2 adopt touch switch, are connected respectively to 18, No. 13 I/O lines of single-chip microcomputer IC1.
Power output circuit is connected to electric food warmer through the power output circuit interface.
Time and the lasting duration setting of relay J 1 shutoff and conducting also are kept in single-chip microcomputer IC1, and when wherein function change-over switch K2 is in the difference in functionality shelves, time and the lasting duration of relay J 1 shutoff and conducting see Table 1:
Table 1 relay turn-offs and time and the lasting duration correspondence of conducting are shown
| The function shelves | ON time (second) | Turn-off time (second) | Lasting duration (minute) |
| Insulation | 3～9 | 21～63 | 300 |
| Slow fire | 5～25 | 7～37 | 80 |
| Slow fire | 8～38 | 4～19 | 60 |
| Intense fire | Long logical | —— | 45 |
| Quick-fried | Long logical | —— | 30 |
The principle of work of circuit is: the 220V alternating current is by capacitor C 1 step-down, then by diode D1 half-wave rectification, rectification becomes DC voltage, load on 12V stabilivolt D2 and D3, through capacitor C 2 filtering, thereby obtain the 12V DC voltage, for relay J 1 provides operating voltage.Relay J 1 operating voltage is controlled according to the state of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1 and is supplied with, when relay J 1 has 12V voltage to supply with, and 1 action of relay J, power output circuit can provide the 220V alternating current; When relay J 1 did not have 12V voltage to supply with, relay J 1 was moved again, and power output circuit cuts off the power supply at once.
During use, the power supply input circuit interface of controller is connected to mains supply, and the power output circuit interface connects electric food warmer, then presses the power control switch K1 of controller, this Time Controller is in holding state, and pilot lamp LED1～LED5 is the running lamp form and flows; Press function change-over switch K2, controller enters 5 shift functions and selects, and when the user selected a certain function shelves, corresponding pilot lamp was bright, and controller is in corresponding function shelves duty.
According to the different operating state of power control switch K1 and function change-over switch K2, time and the lasting duration of single-chip microcomputer IC1 pilot relay J1 turn-on and turn-off are:
When K1 conducting and K2 are in " insulation " function shelves, pilot lamp LED1 is bright, this moment, the duty of single-chip microcomputer IC1 pilot relay J1 was: conducting 5 seconds, turn-offed 35 seconds, conducting is 5 seconds again, then turn-offs 35 seconds ..., and so forth, continue 300 minutes, then end to supply with the operating voltage of relay J 1;
When K1 conducting and K2 are in " slow fire " function shelves, pilot lamp LED2 is bright, this moment, the duty of single-chip microcomputer IC1 pilot relay J1 was: conducting 15 seconds, turn-offed 22 seconds, conducting is 15 seconds again, then turn-offs 22 seconds ..., and so forth, continue 80 minutes, then end to supply with the operating voltage of relay J 1;
When K1 conducting and K2 are in " slow fire " function shelves, pilot lamp LED3 is bright, this moment, the duty of single-chip microcomputer IC1 pilot relay J1 was: conducting 22 seconds, turn-offed 11 seconds, conducting is 22 seconds again, then turn-offs 11 seconds ..., and so forth, continue 60 minutes, then end to supply with the operating voltage of relay J 1;
When K1 conducting and K2 were in " intense fire " function shelves, pilot lamp LED4 was bright, and this moment, the duty of single-chip microcomputer IC1 pilot relay J1 was: long logical state, continue 45 minutes, and then end to supply with the operating voltage of relay J 1;
When K1 conducting and K2 were in " quick-fried " function shelves, pilot lamp LED5 was bright, and this moment, the duty of single-chip microcomputer IC1 pilot relay J1 was: long logical state, continue 30 minutes, and then end to supply with the operating voltage of relay J 1.
Certainly, the above-mentioned the preferred embodiment of the present invention that just discloses, the variation and the modification that are equal in any employing claim scope of the present invention are all in claim scope of the present invention.
Claims (10)
1. external automatic controller that is used for electric food warmer, include housing, be assembled in the control circuit components and parts of enclosure interior, the power supply input circuit that connects civil power, the power output circuit that connects electric food warmer, be located at gauge tap and indicating device on housing, it is characterized in that: by the circuit switching of relay J 1 as power output circuit shutoff and conducting, it turn-offs and time and the lasting duration of conducting are controlled according to the state of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1, power supply input circuit is through step-down rectifying circuit, the power input interface of access single-chip microcomputer IC1 after the step-down rectifier of secondary reduction voltage circuit, other I/O interface of single-chip microcomputer IC1 is connected respectively to power control switch K1, function change-over switch K2, indicating device and relay J 1, described relay J 1 is also connected to the L line of power supply input circuit, L line and the step-down rectifying circuit of power output circuit.
2. external automatic controller as claimed in claim 1 is characterized in that: described step-down rectifying circuit is by capacitor C 1, diode D1, and stabilivolt D2, D3, capacitor C 2 consists of.
3. external automatic controller as claimed in claim 1, it is characterized in that: described secondary reduction voltage circuit is made of three-terminal voltage-stabilizing pipe IC2 and capacitor C 3.
4. external automatic controller as claimed in claim 1 is characterized in that: described indicating device by LED1～LED5 totally 5 pilot lamp form, respectively corresponding " insulation ", " slow fire ", " slow fire ", " intense fire ", " quick-fried " 5 function shelves.
5. external automatic controller as claimed in claim 1, it is characterized in that: described single-chip microcomputer IC1 is also connected to sound prompt device.
6. external automatic controller as claimed in claim 5, it is characterized in that: described sound prompt device is indicative hummer.
7. external automatic controller as claimed in claim 1, it is characterized in that: described single-chip microcomputer IC1 is Samsung S3F9454BZZ-DK94 integrated manipulator.
8. external automatic controller as claimed in claim 1 is characterized in that: described relay J 1 is electromagnetic relay.
9. external automatic controller as claimed in claim 1, it is characterized in that: described gauge tap K1, function change-over switch K2 are touch switch.
10. external automatic controller as claimed in claim 1 is characterized in that: described function change-over switch K2 circulation is provided with " insulation ", " slow fire ", " slow fire ", " intense fire ", " quick-fried " 5 function shelves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103711092A CN103123469A (en) | 2011-11-21 | 2011-11-21 | External automatic controller applied to electric food warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103711092A CN103123469A (en) | 2011-11-21 | 2011-11-21 | External automatic controller applied to electric food warmer |
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| Publication Number | Publication Date |
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| CN103123469A true CN103123469A (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103711092A Pending CN103123469A (en) | 2011-11-21 | 2011-11-21 | External automatic controller applied to electric food warmer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201016Y (en) * | 1994-10-19 | 1995-06-21 | 方俊雄 | Full automatic ceramic health-care pot |
| CN2358795Y (en) * | 1999-02-09 | 2000-01-19 | 张维廉 | Automatic controller for common electric cooker |
| JP2003052548A (en) * | 2001-08-20 | 2003-02-25 | Tiger Vacuum Bottle Co Ltd | Multifunctional cooking plate |
| CN2562702Y (en) * | 2001-11-18 | 2003-07-30 | 周衍增 | Micro computer sealed integrated electric pan |
| US6624392B2 (en) * | 2001-07-11 | 2003-09-23 | Acerne Enterprises, Llc | Multifunctional cooking system |
| CN202331082U (en) * | 2011-11-21 | 2012-07-11 | 陈国鑫 | External automatic controller for electric food warmer |
-
2011
- 2011-11-21 CN CN2011103711092A patent/CN103123469A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201016Y (en) * | 1994-10-19 | 1995-06-21 | 方俊雄 | Full automatic ceramic health-care pot |
| CN2358795Y (en) * | 1999-02-09 | 2000-01-19 | 张维廉 | Automatic controller for common electric cooker |
| US6624392B2 (en) * | 2001-07-11 | 2003-09-23 | Acerne Enterprises, Llc | Multifunctional cooking system |
| JP2003052548A (en) * | 2001-08-20 | 2003-02-25 | Tiger Vacuum Bottle Co Ltd | Multifunctional cooking plate |
| CN2562702Y (en) * | 2001-11-18 | 2003-07-30 | 周衍增 | Micro computer sealed integrated electric pan |
| CN202331082U (en) * | 2011-11-21 | 2012-07-11 | 陈国鑫 | External automatic controller for electric food warmer |
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Application publication date: 20130529 |