CN2600024Y - Controller of coffee pot - Google Patents
Controller of coffee pot Download PDFInfo
- Publication number
- CN2600024Y CN2600024Y CN 03224038 CN03224038U CN2600024Y CN 2600024 Y CN2600024 Y CN 2600024Y CN 03224038 CN03224038 CN 03224038 CN 03224038 U CN03224038 U CN 03224038U CN 2600024 Y CN2600024 Y CN 2600024Y
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- China
- Prior art keywords
- heating wire
- circuit
- chip microcomputer
- control
- power
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a coffee pot controller, comprising a heating wire and a dry shutdown protection circuit. The dry shutdown protection circuit includes a temperature controller, a shutdown protection trigger circuit and a heating wire shutdown circuit. The temperature controller is used to detect the temperature of the heating wire, produce corresponding control signals to control shutdown protection trigger circuit and produce trigger signals to control the switch of the heating wire shutdown circuit. Under the dry status, after testing high temperature signals, the temperature controller produces the shutdown trigger signals to stop the heating course of the heating wire, thereby playing a protection role and providing security assurances.
Description
Technical field:
The utility model relates to a kind of coffee pot, relates in particular to a kind of coffee pot control device.
Background technology:
Along with the raising gradually of living standard, various water boilers more and more are subjected to people's welcome, and coffee pot arises at the historic moment.But for existing coffee pot, can not solve, make coffee pot dryout the back and damage, even threat to life safety owing in the coffee boiling process, close the problem that causes because of forgetting.The design inconvenience of these coffee pots in addition, man-machine interface are also friendly inadequately.
The utility model content:
The purpose of this utility model is exactly in order to overcome the above problems, and proposes a kind of coffee pot controller, under dry-fire condition, can cut off the power supply automatically.
For achieving the above object; the utility model proposes a kind of coffee pot controller; comprise heating wire, dry combustion method power-off protecting circuit; described dry combustion method power-off protecting circuit comprises temperature controller and heating wire cut-off's circuit; described temperature controller is used to survey the temperature of heating wire; produce control signal corresponding, control power-off protection circuits for triggering produce the switch that triggering signal is controlled heating wire cut-off's circuit.
Owing to adopted above scheme, under dry-fire condition, test high temperature signal by temperature controller, produce the outage triggering signal, stop heating wire heating process, thereby play a protective role, improve the security of complete machine.
Description of drawings:
Fig. 1 is the circuit control block diagram of the utility model coffee pot controller embodiment;
Fig. 2 is the key circuit figure of the utility model coffee pot controller embodiment;
Fig. 3 is the utility model coffee pot controller embodiment power panel circuit diagram;
Fig. 4 is the control panel circuit diagram of the utility model coffee pot controller embodiment;
Fig. 5 is the circuit diagram of power-off protection circuits for triggering and heating wire cut-off's circuit.
The specific embodiment:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: a kind of coffee pot controller; comprise heating wire; dry combustion method power-off protecting circuit (30); single-chip microcomputer (MCU); dry combustion method power-off protecting circuit (30) comprises temperature controller (30A); power-off protection circuits for triggering (30B) and heating wire cut-off's circuit (30C); one end of temperature controller (30A) links to each other with the input (TS) of heating wire and power-off protection circuits for triggering; the other end is a low level end; the other end of heating wire links to each other with the output (RHT) of heating wire cut-off's circuit; the temperature control that the output of power-off protection circuits for triggering (30B) connects single-chip microcomputer detects pin, and the input of heating wire cut-off's circuit (30C) drives pin with single-chip microcomputer (MCU) outage and links to each other.Temperature controller (30A) is used to survey the temperature of heating wire, produces control signal corresponding, and control power-off protection circuits for triggering (30B) produce triggering signal, the Kai Heguan of control heating wire cut-off's circuit (30C).Realize the defencive function of dry combustion method outage, safe and reliable.Power-off protection circuits for triggering (30B) comprise first triode (TR3), switching diode (D4), current-limiting resistance (R8) and first electric capacity (C5), described switching diode (D4) end and current-limiting resistance (R8) are in series, the other end is as the input (TS) of power-off protection circuits for triggering, the other end of current-limiting resistance (R8) links to each other with the base stage of first triode (TR3), and the emission of first triode (TR3) is the output of power-off protection circuits for triggering (30B) very; Between the emitter stage of first triode (TR3) and colelctor electrode, be connected to first electric capacity (C5); Heating wire cut-off's circuit (30C) comprises switching diode (D3) and relay (RY1), switching diode (D3) is parallel to the control valve two ends of relay (RY1), one end of relay (RY1) switch links to each other with positive source, and the other end is as the output (RHT) of heating wire cut-off's circuit (30C).
The concrete operation principle of dry combustion method power-off protecting circuit (30) is: when temperature controller is connected; from TS end input one low level; triode TR3 conducting; make the MCU temperature control detect pin and detect low level, in case temperature controller disconnects, triode TR3 ends; make the MCU temperature control detect pin and detect high level; then disconnect relay, stop heating wire works, play a protective role.Whether the input-signal judging according to the heater strip temperature controller enters guard mode, improves the security of complete machine.
Also can comprise reservation heating control circuit and button, button is reservation heating function button and heating work mode key immediately.The reservation heating control circuit comprises timer, the button input triggers serial port with keys of single chip microcomputer and links to each other, the input of heating wire cut-off's circuit (30C) triggers port with the heating wire power on/off of single-chip microcomputer and links to each other, single-chip microcomputer (MCU) is according to the button input command, control timer clocks, and single-chip microcomputer produces interrupt signal according to the timer of its inside, produce the reservation heating signal through the output of heating wire power on/off port, the duty of control heating wire.When pushing button, trigger the serial port input signal to single-chip microcomputer through keys of single chip microcomputer, single-chip microcomputer produces corresponding response signal, carries out corresponding subprogram.For example: carry out reservation heating subprogram in the time of can setting button and press, preengage heating, when button is pressed twice continuously, carry out and heat subprogram immediately, enter heating mode immediately.A button is realized two functions, flexible working mode.The coffee pot controller has the reservation heating function, as is provided with the coffee pot Auto On Time, then just can drink reeky coffee at preset time.
Indicator lamp (LED1) links to each other with the indicator lamp control pin of single-chip microcomputer, when heating wire works, and the indicator lamp control pin of single-chip microcomputer output high level, (LED1) is bright for indicator lamp, when heating stops, the indicator lamp control pin output low level of single-chip microcomputer, indicator lamp (LED1) goes out.Show that with relay indicating light coffee pot heats, more intuitively eye-catching.
The coffee pot control device also comprises LCDs, LCDs is by MCU driving, at the inner free memory of single-chip microcomputer (MCU), duty icon memory, the central controller of single-chip microcomputer (MCU) inside is according to different control signals, correspondingly read the content in time memory and the duty icon memory, drive LCDs and show corresponding information.LCD shows can indicate coffee pot duty and demonstration real-time time, has friendly man-machine interface.Single-chip microcomputer is finished the judgement of button input and effective status as the core of controller, and according to coffee pot duty output control signal corresponding, finishes LCD simultaneously and show that control and real-time time calculate.
The full Based Intelligent Control of this coffee pot controller coffee boiling process does not need people's supervision and interference, and automatic prompting is finished in the coffee boiling, can heat automatically according to subscription time.The dry combustion method power-off protection function provides safety assurance.
Claims (7)
1. coffee pot controller; comprise heating wire; it is characterized in that: also comprise dry combustion method power-off protecting circuit (30); described dry combustion method power-off protecting circuit (30) comprises temperature controller (30A), power-off protection circuits for triggering (30B) and heating wire cut-off's circuit (30C); described temperature controller (30A) is used to survey the temperature of heating wire; produce control signal corresponding; control power-off protection circuits for triggering (30B); produce triggering signal, make the control heating wire cut-off circuit (30C) that is in series with heating wire open and turn-off.
2. coffee pot controller as claimed in claim 1; it is characterized in that: also comprise single-chip microcomputer (MCU); one end of described temperature controller (30A) links to each other with the input (TS) of heating wire and power-off protection circuits for triggering; the other end is a low level end; the other end of heating wire links to each other with the output (RHT) of heating wire cut-off's circuit; the temperature control that the output of power-off protection circuits for triggering (30B) connects single-chip microcomputer detects pin, and the input of heating wire cut-off's circuit (30C) drives pin with single-chip microcomputer (MCU) outage and links to each other.
3. coffee pot controller as claimed in claim 2, it is characterized in that: power-off protection circuits for triggering (30B) comprise first triode (TR3), switching diode (D4), current-limiting resistance (R8) and first electric capacity (C5), described switching diode (D4) end and current-limiting resistance (R8) are in series, the other end is as the input (TS) of power-off protection circuits for triggering, the other end of current-limiting resistance (R8) links to each other with the base stage of first triode (TR3), and the emission of first triode (TR3) is the output of power-off protection circuits for triggering (30B) very; Between the emitter stage of first triode (TR3) and colelctor electrode, be connected to first electric capacity (C5); Heating wire cut-off's circuit (30C) comprises switching diode (D3) and relay (RY1); switching diode (D3) is parallel to the control valve two ends of relay (RY1); the protective relay coil; one end of relay (RY1) switch links to each other with positive source, and the other end is as the output (RHT) of heating wire cut-off's circuit (30C).
4. coffee pot controller as claimed in claim 1 or 2, it is characterized in that: also comprise reservation heating control circuit and button, the reservation heating control circuit comprises timer, the button input triggers serial port with keys of single chip microcomputer and links to each other, the input of heating wire cut-off's circuit (30C) triggers port with the heating wire power on/off of single-chip microcomputer and links to each other, single-chip microcomputer (MCU) is according to the button input command, control timer, clock, single-chip microcomputer produces interrupt signal according to the timer of its inside, produce the reservation heating signal through the output of heating wire power on/off port, the duty of control heating wire.
5. coffee pot controller as claimed in claim 4 is characterized in that: described button is reservation heating function button and heating work mode key immediately.
6. coffee pot controller as claimed in claim 5, it is characterized in that: also comprise indicator lamp (LED1), described indicator lamp (LED1) links to each other with the indicator lamp control pin of single-chip microcomputer, when heating wire works, the indicator lamp control pin output high level of single-chip microcomputer, (LED1) is bright for indicator lamp, when heating stops, the indicator lamp control pin output low level of single-chip microcomputer, indicator lamp (LED1) goes out.
7. coffee pot controller as claimed in claim 6, it is characterized in that: described coffee pot control device also comprises LCDs, LCDs is by MCU driving, at the inner free memory of single-chip microcomputer (MCU), duty icon memory, the central controller of single-chip microcomputer (MCU) inside is according to different control signals, correspondingly read the content in time memory and the duty icon memory, drive LCDs and show corresponding information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224038 CN2600024Y (en) | 2003-03-07 | 2003-03-07 | Controller of coffee pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03224038 CN2600024Y (en) | 2003-03-07 | 2003-03-07 | Controller of coffee pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600024Y true CN2600024Y (en) | 2004-01-21 |
Family
ID=34163153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03224038 Expired - Fee Related CN2600024Y (en) | 2003-03-07 | 2003-03-07 | Controller of coffee pot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600024Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8263911B2 (en) | 2009-05-25 | 2012-09-11 | Pegatron Corporation | Electronic device with heating protection circuit and heating protection method thereof |
| CN104298274A (en) * | 2013-07-17 | 2015-01-21 | 鸿合科技有限公司 | Temperature control system and temperature control method |
-
2003
- 2003-03-07 CN CN 03224038 patent/CN2600024Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8263911B2 (en) | 2009-05-25 | 2012-09-11 | Pegatron Corporation | Electronic device with heating protection circuit and heating protection method thereof |
| TWI381604B (en) * | 2009-05-25 | 2013-01-01 | Pegatron Corp | Electronic apparatus with heating protection circuit and heating protecting method thereof |
| CN101901180B (en) * | 2009-05-25 | 2013-01-23 | 和硕联合科技股份有限公司 | Heating protection circuit, electronic device and heating protection method thereof |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN AND INTELLIGENT CONTROL AND THAILAND CO. Free format text: FORMER NAME OR ADDRESS: HEERTAI ELECTRONIC SCI-TECH CO., LTD. SHENZHEN |
|
| CP03 | Change of name, title or address |
Address after: International Technology Innovation Research Institute, ten South tech Road, Shenzhen hi tech Zone, Guangdong, China: 518057 Patentee after: ShenZhen H&T Intelligent Control CO., LTD. Address before: International Technology Innovation Research Institute, ten South tech Road, Shenzhen hi tech Zone, Guangdong, China: 518057 Patentee before: Heertai Electronic Sci. & Tech. Co., Ltd., Shenzhen City |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040121 Termination date: 20120307 |