CN202331082U - External automatic controller for electric food warmer - Google Patents
External automatic controller for electric food warmer Download PDFInfo
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- CN202331082U CN202331082U CN2011204639336U CN201120463933U CN202331082U CN 202331082 U CN202331082 U CN 202331082U CN 2011204639336 U CN2011204639336 U CN 2011204639336U CN 201120463933 U CN201120463933 U CN 201120463933U CN 202331082 U CN202331082 U CN 202331082U
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Abstract
The utility model relates to an external automatic controller for an electric food warmer. The external automatic controller is characterized in that a relay J1 is used as a loop switch for turning off and turning on a power source output circuit; the turn-off and turn-on time and duration of the power source output circuit are controlled by a single-chip microcomputer IC1 according to the state of a power source control switch K1 and a functional selector switch K2; a power source input circuit is subjected to voltage reduction and rectification through a voltage reduction rectification circuit and a secondary voltage reduction circuit and then is connected with a power source input interface of the single-chip microcomputer IC1; other I/O (Input/Output) interfaces of the single-chip microcomputer IC1 are respectively connected with the power source control switch K1, the functional selector switch K2, an indicating device and the relay J1; and the relay J1 is also connected with an L line of the power source input circuit and an L line of the power source output circuit. The external automatic controller has multiple cooking control functions, is safe, durable and suitable for high-power electric heating appliances and can be widely applied to the automatic control of the electric heating appliances for daily use.
Description
Technical field
The utility model relates to a kind of controller, specifically a kind of external self-actuated controller that is used for electric food warmer.
Background technology
Current; Along with the continuous development of electronic technology and reaching its maturity of electron controls technology; Various electric heating kitchen tools such as electric cooker, electric cooking pot, electric pressure cooking saucepan etc. get into people's life in succession, wherein from having only 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, automatic boiling etc.; Of a great variety, complete.But existing electric heating kitchen tools major part is that control circuit is integrated in kitchen tools inside and realizes the automatic control to the electric heating kitchen tools by the control panel of being located on the kitchen tools.Such electric heating kitchen tools make control apparatus be prone to aging, scaling loss because of the long-time close of control circuit in hot environment, even have the potential safety hazard that is prone to 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 ordinary electric rice cooker self-actuated controller; This controller adopts the energising and automatic power-off time of external self-actuated controller and temperature measurement circuit sensor control ordinary electric rice cooker, thereby realizes the automatic control to ordinary electric rice cooker.This patent can overcome the above-mentioned limitation of existing electric heating kitchen tools, can't control electric heating kitchen tools heating power, the limitation that control function is single automatically but exist.
Summary of the invention
For overcoming the limitation of prior art, the purpose of the utility model provides a kind of multiple culinary art control function, safe, durable and be applicable to the external self-actuated controller of high power electrothermal pot that has.
To achieve these goals; The utility model adopts following technical scheme: a kind of external self-actuated controller that is used for electric food warmer; Include housing; Be assembled in the control circuit components and parts of enclosure interior, connect the power supply input circuit of civil power, connect the power output circuit of electric food warmer; Be located at CS and indicating device on the 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 the 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, and power supply input circuit inserts the power input interface of single-chip microcomputer IC1 behind 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 power control switch K1, function change-over switch K2, indicating device and relay J 1, and said relay J 1 is also connected to the L line of power supply input circuit, the L line and the step-down rectifying circuit of power output circuit.
Preferably, said step-down rectifying circuit is by capacitor C 1, diode D1, and stabilivolt D2, D3, capacitor C 2 constitutes.
Preferably, said secondary reduction voltage circuit is made up of three-terminal voltage-stabilizing pipe IC2 and capacitor C 3.
Preferably, said indicating device by LED1～LED5 totally 5 pilot lamp form, be respectively applied for the indication said self-actuated controller the different capacity state.
Preferably, said single-chip microcomputer IC1 is also connected to the auditory tone cues device.
Preferably, said auditory tone cues device is indicative hummer.
Preferably, said single-chip microcomputer IC1 is a Samsung S3F9454BZZ-DK94 integrated manipulator.
Preferably, said relay J 1 is an electromagnetic relay.
Preferably, said CS K1, function change-over switch K2 are touch switch.
Preferably, said function change-over switch K2 can circulate 5 kinds of different power states are set.
Adopt technique scheme compared with prior art; It is characterized in that time and the lasting duration according to conducting of State Control power output circuit and the shutoff of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1; 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 the time and the lasting duration of power output circuit conducting and shutoff respectively, 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 novel employing external of these family expenses avoids control circuit too near and be prone to defective aging, scaling loss apart from heater, has safety, durable advantage, also is applicable to the control to the high power electrothermal pot, highly versatile simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model shell.
Fig. 2 is the utility model circuit block diagram.
Fig. 3 is the utility model circuit theory diagrams.
Among the figure: 10-controller housing, 20-power supply input circuit, 21-power supply input circuit interface, 30-step-down rectifying circuit, 40-secondary reduction voltage circuit; 50-single-chip microcomputer IC1,60-indicating device, 61-LED1,62-LED2,63-LED3; 64-LED4,65-LED5,70-power control switch K1,80-function change-over switch K2; 90-auditory tone cues device, 100-relay J 1,110-power output circuit, 111-power output circuit interface.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As shown in Figure 1; Controller housing is provided with power control switch K1, function change-over switch K2 and indicating device; Indicating device by LED1～LED5 totally 5 LED lights constitute; Also be provided with power supply input circuit interface and power output circuit interface on the controller housing, be electrically connected with mains supply and electric food warmer respectively.
Like Fig. 2, shown in 3; The power supply input circuit that connects civil power inserts the power input interface of single-chip microcomputer IC1 behind 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 suggestion device, and relay is also connected to the L line of power supply input circuit, the 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 constitutes, and it becomes the 12V direct current with the step-down of 220V alternating current, rectification, filtering is that relay J 1 provides working power.
The secondary reduction voltage circuit is made up 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 lights constitute; 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.
The auditory tone cues device is made up 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 of which 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.
The time and the lasting duration setting of relay J 1 shutoff and conducting also are kept among the single-chip microcomputer IC1, and the time and the lasting duration of relay J 1 shutoff and conducting were seen table 1 when wherein function change-over switch K2 was in the difference in functionality shelves:
The time and the lasting duration correspondence table of shutoff of table 1 relay and conducting
| 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 through capacitor C 1 step-down, and by diode D1 half-wave rectification, rectification becomes DC voltage again; Load on 12V stabilivolt D2 and the D3; Through capacitor C 2 filtering, thereby obtain the 12V DC voltage, for relay J 1 provides WV.Relay J 1 WV is supplied with according to the State Control of power control switch K1 and function change-over switch K2 by single-chip microcomputer IC1, 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, presses the power control switch K1 of controller then; This moment, controller was in holding state, and pilot lamp LED1～LED5 is the running lamp form and flows; Press function change-over switch K2, controller gets into 5 shift functions and selects, and when the user selected a certain function shelves, corresponding pilot lamp was bright, and controller is in function corresponding shelves duty.
According to the different operating state of power control switch K1 and function change-over switch K2, the time and the lasting duration of J1 conducting of single-chip microcomputer IC1 pilot relay and shutoff are:
When K1 conducting and K2 were in " insulation " function shelves, pilot lamp LED1 was bright, and 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, turn-offs 35 seconds again ..., so back and forth; Continue 300 minutes, end to supply with the WV of relay J 1 then;
When K1 conducting and K2 were in " slow fire " function shelves, pilot lamp LED2 was bright, and 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, turn-offs 22 seconds again ..., so back and forth; Continue 80 minutes, end to supply with the WV of relay J 1 then;
When K1 conducting and K2 were in " slow fire " function shelves, pilot lamp LED3 was bright, and 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, turn-offs 11 seconds again ..., so back and forth; Continue 60 minutes, end to supply with the WV of relay J 1 then;
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 end to supply with the WV of relay J 1 then;
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 end to supply with the WV of relay J 1 then.
Certainly, the above-mentioned preferred implementation that just discloses the utility model, the variation and the modification that are equal in any employing the utility model claim scope are all in the utility model claim scope.
Claims (10)
1. external self-actuated 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; Connect the power output circuit of electric food warmer, be located at CS and indicating device on the 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 the 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 inserts the power input interface of single-chip microcomputer IC1 behind 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 power control switch K1, function change-over switch K2, indicating device and relay J 1, and said relay J 1 is also connected to the L line of power supply input circuit, the L line and the step-down rectifying circuit of power output circuit.
2. external self-actuated controller as claimed in claim 1 is characterized in that: said step-down rectifying circuit is by capacitor C 1, diode D1, and stabilivolt D2, D3, capacitor C 2 constitutes.
3. external self-actuated controller as claimed in claim 1 is characterized in that: said secondary reduction voltage circuit is made up of three-terminal voltage-stabilizing pipe IC2 and capacitor C 3.
4. external self-actuated controller as claimed in claim 1 is characterized in that: said indicating device by LED1～LED5 totally 5 pilot lamp form, be respectively applied for the indication said self-actuated controller the different capacity state.
5. external self-actuated controller as claimed in claim 1 is characterized in that: said single-chip microcomputer IC1 is also connected to the auditory tone cues device.
6. external self-actuated controller as claimed in claim 5 is characterized in that: said auditory tone cues device is indicative hummer.
7. external self-actuated controller as claimed in claim 1 is characterized in that: said single-chip microcomputer IC1 is a Samsung S3F9454BZZ-DK94 integrated manipulator.
8. external self-actuated controller as claimed in claim 1 is characterized in that: said relay J 1 is electromagnetic relay.
9. external self-actuated controller as claimed in claim 1 is characterized in that: said CS K1, function change-over switch K2 are touch switch.
10. external self-actuated controller as claimed in claim 1 is characterized in that: said function change-over switch K2 can circulate 5 kinds of different power states are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204639336U CN202331082U (en) | 2011-11-21 | 2011-11-21 | External automatic controller for electric food warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204639336U CN202331082U (en) | 2011-11-21 | 2011-11-21 | External automatic controller for electric food warmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331082U true CN202331082U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204639336U Expired - Fee Related CN202331082U (en) | 2011-11-21 | 2011-11-21 | External automatic controller for electric food warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331082U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123469A (en) * | 2011-11-21 | 2013-05-29 | 陈国鑫 | External automatic controller applied to electric food warmer |
| CN104298274A (en) * | 2013-07-17 | 2015-01-21 | 鸿合科技有限公司 | Temperature control system and temperature control method |
| CN105867450A (en) * | 2016-04-12 | 2016-08-17 | 广东美的厨房电器制造有限公司 | Cooking equipment and control method thereof |
-
2011
- 2011-11-21 CN CN2011204639336U patent/CN202331082U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123469A (en) * | 2011-11-21 | 2013-05-29 | 陈国鑫 | External automatic controller applied to electric food warmer |
| CN104298274A (en) * | 2013-07-17 | 2015-01-21 | 鸿合科技有限公司 | Temperature control system and temperature control method |
| CN104298274B (en) * | 2013-07-17 | 2016-06-22 | 鸿合科技有限公司 | A kind of temperature control system and Temp. control method |
| CN105867450A (en) * | 2016-04-12 | 2016-08-17 | 广东美的厨房电器制造有限公司 | Cooking equipment and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131121 |