CN2759313Y - Temperature controller of coffeepot and coffeepot - Google Patents
Temperature controller of coffeepot and coffeepot Download PDFInfo
- Publication number
- CN2759313Y CN2759313Y CN 200420061562 CN200420061562U CN2759313Y CN 2759313 Y CN2759313 Y CN 2759313Y CN 200420061562 CN200420061562 CN 200420061562 CN 200420061562 U CN200420061562 U CN 200420061562U CN 2759313 Y CN2759313 Y CN 2759313Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- microprocessor
- temperature
- coffee pot
- heater
- 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
Links
Images
Landscapes
- Cookers (AREA)
- Control Of Temperature (AREA)
Abstract
The utility model discloses a coffee pot temperature controller and a coffee pot. The coffee pot temperature controller comprises a microprocessor, a temperature measurement circuit and a control circuit, wherein the temperature measurement circuit can detect the temperature of a coffee pot heating device, and detection signals can be input into the microprocessor; the microprocessor can output control signals to the control circuit; the control circuit can switch off or switch on a power supply of the heating device. The coffee pot comprises a pot body, a heating device which is arranged in the pot body, and a temperature controller which can control the switching on or the switching off of the coffee pot according to the temperature value of the coffee pot, wherein the temperature controller has the structure. The utility model has the advantages that because the coffee pot temperature controller and the coffee pot adopt the method that the temperature of the heating devices are detected and controlled by the microprocessor, the control temperature point arranged by the microprocessor can be adjusted by programs. The same coffee pot temperature controller has more wide adaptability. The design of a whole machine manufacturer is convenient, and the cost is reduced.
Description
[technical field]
The utility model relates to coffee pot, specifically relates to a kind of coffee pot temperature controller and contains the coffee pot of this controller.
[background technology]
Most in the market coffee pot all is to utilize a radiator valve (a kind of bimetal leaf temperature regulating device) to control the temperature of heating tube, and when temperature was low, bimetal leaf was connected, thereby connect heater strip and begin heating, when temperature was higher, the bimetal leaf automatic disconnection stopped heating.Its connected mode is that radiator valve is connected in the heating circuit, utilizes the principle of expanding with heat and contract with cold to turn on and off heater strip automatically when the heater strip temperature is below or above the control temperature spot.Because each complete machine producer is in design coffee pot heater strip and shell, there are differences at aspects such as sealing, heat radiations, the temperature spot that their heater strip will be controlled also just has nothing in common with each other, if adopt above-mentioned radiator valve to control then might need to customize the radiator valve of distinct temperature point, increase cost.And because the temperature spot of radiator valve is non-adjustable, just need to change radiator valve if will adjust temperature spot, greatly reduce the flexibility of complete machine design.
[summary of the invention]
The purpose of this utility model is to propose a kind of coffee pot of controlling the adjustable coffee pot temperature controller of temperature spot and containing this controller.
The technical scheme that realizes above-mentioned purpose is: a kind of coffee pot temperature controller, comprise microprocessor, temperature measurement circuit and control circuit, described temperature measurement circuit detects the temperature of coffee pot heater and with the detection signal input microprocessor, described microprocessor is with the control signal output control circuit, and described control circuit turn-offs or connect the power supply of heater.
Described temperature measurement circuit can preferably such structure: comprise electric capacity, thermistor, reference resistance and discharge circuit, the one I/O mouth order series thermal-sensitive resistance and the described electric capacity of microprocessor are formed first charge circuit, connect in proper order reference resistance and described electric capacity of the 2nd I/O mouth of microprocessor is formed second charge circuit, and the 3rd I/O mouth order discharged in series circuit and the described electric capacity of microprocessor are formed discharge loop.
Described discharge circuit can be realized with discharge resistance simply.
Described control circuit can preferably such structure: comprise on-off circuit and heater controller, the turn-on and turn-off of on-off circuit control heater controller, the heater controller turn-offs or connects the power supply of heater, and described microprocessor is by the turn-on and turn-off of the 4th I/O mouth gauge tap circuit.
Described on-off circuit is triode preferably, and its base stage is electrically connected with the 4th I/O mouth of microprocessor, the emitter stage heater controller of connecting with colelctor electrode, and described heater controller is relay or controllable silicon preferably.
The utility model also proposes a kind of coffee pot, comprise the kettle body, be located at the interior heater of kettle body and control the temperature controller that it turns on and off according to its temperature value, described temperature controller promptly adopts the structure of mentioning in the aforementioned schemes, and the various preferred versions of aforementioned its each several part all are applicable to this coffee pot.
When the temperature measurement circuit in the temperature controller adopts the aforementioned preferred version that comprises thermistor, described thermistor be arranged at can sensing heater temperature the position.
The utility model adopts technique scheme, beneficial technical effects is: the 1) method that detects and control owing to the temperature that adopts microprocessor to heater, can adjust the control temperature spot that microprocessor is provided with by program, make same coffee pot temperature controller that adaptability widely be arranged, greatly facilitate the design of complete machine producer and reduced its cost; 2) temperature measurement circuit of ingenious design only need adopt the primary element and the simple digital measurement that can carry out temperature that is connected of microprocessor of minute quantity, and dependable performance is with low cost.
[description of drawings]
Below by embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail:
Fig. 1 is a kind of preferred version circuit diagram of coffee pot temperature controller.
Fig. 2 is a kind of preferred version circuit diagram of temperature controller and heater in the coffee pot.
Fig. 3 is the another kind of preferred version circuit diagram of temperature controller and heater in the coffee pot.
[specific embodiment]
Embodiment one, a kind of coffee pot temperature controller in conjunction with Fig. 1, comprise microprocessor, temperature measurement circuit and control circuit.Temperature measurement circuit comprises capacitor C, thermistor Rntc, reference resistance Rref and as the discharge resistance R1 of discharge circuit, one end of thermistor, reference resistance and discharge resistance connects I/Ontc, I/Oref and three I/O mouths of I/Otest of microprocessor respectively, and other end parallel connection is after the capacitor C earthing potential.Control circuit comprises as the triode T of on-off circuit with as the relay K of heater controller, and the base stage of triode T connects the I/Ocon mouth of microprocessor, emitter stage and colelctor electrode SRE K, relay K two ends parallel diode L through current-limiting resistance R2.Described diode L is used for when turn-offing relay eliminating relay coil and having inverse electromotive force as the back discharge loop.
Temperature measurement circuit also can adopt other temperature measurement circuit patterns at present commonly used in this example, as long as temperature value can be offered microprocessor with the form of numeral.
Embodiment two, a kind of coffee pot, in conjunction with Fig. 2, comprise heater and control the temperature controller that it turns on and off according to its temperature value, described temperature controller adopts the structure among the embodiment one, described heater is the heating wire loop by switch S control, thermistor Rntc in the temperature controller is arranged near can respond to its temperature the heating wire H position, and relay K gauge tap S turns on and off.
The concrete course of work is
The thermometric process:
(1) microprocessor is made as low level output with the I/Otest mouth, and other mouthful is made as input, promptly by discharge resistance R1 capacitor C is discharged, and time-delay is until having put;
(2) microprocessor is made as high level output with the I/Oref mouth, and other mouthful is made as input, promptly by reference resistance Rref capacitor C charged.Simultaneously, the zero clearing of microprocessor internal timer also picks up counting, and when detecting the I/Otest mouth and be high level, illustrates that capacitor C is full of, stops timing, and timer is noted Rref from beginning to be charged to the time T ref that charging finishes.
(3) repeat (1);
(4) microprocessor is made as high level output with the I/Ontc mouth, and other mouthful is made as input, promptly by thermistor Rntc capacitor C charged.Simultaneously, the zero clearing of microprocessor internal timer also picks up counting, and when detecting the I/Otest mouth and be high level, illustrates that capacitor C is full of, stops timing, and timer is noted reference resistance Rntc from beginning to be charged to the time T ntc that charging finishes.
(5) microprocessor utilizes formula Rntc=Tntc*Rref/Tref that the data of being gathered are carried out the multiplication and division processing, calculates a resistance of thermistor.
(6) microprocessor repeats the resistance that a plurality of (being generally about 8) thermistor is gathered in above-mentioned steps (1)～(5), calculates its mean value.
(7) the microprocessor relevant temperature value of tabling look-up and drawing its induction according to the mean value of thermistor.
Control procedure:
Microprocessor compares temperature value and the predefined control temperature value that temperature measurement circuit obtains, if be lower than this value, then the I/Ocon mouth is made as high level output, turn-on relay K, and then the power supply of relay connection heater heats; If surpass this value, then the I/Ocon mouth is made as low level output, relay K is turn-offed, then heater stop heating.
In real work, the signal lamp by microprocessor control can also be set on coffee pot, be provided with when being in heated condition when judging that temperature is lower than, the indicator lamp of bright a kind of color (or the indicator lamp flicker etc.); Be in when stopping heated condition the indicator lamp of bright another kind of color (or indicator lamp long bright etc.) when judging that temperature is higher than to be provided with.Can certainly indicate heating (temperature) state by other modes.
Embodiment three, a kind of coffee pot in conjunction with Fig. 3, are compared with embodiment two, and difference is to use the controllable silicon K1 that is connected in the heater loop to replace relay K as the heater controller, and the resistance R 3 of connecting with K1 is as current-limiting resistance.The course of work is with embodiment two.
Claims (10)
1, a kind of coffee pot temperature controller, comprise temperature measurement circuit and control circuit, it is characterized in that: also comprise microprocessor, described temperature measurement circuit detects the temperature of coffee pot heater and with the detection signal input microprocessor, described microprocessor is with the control signal output control circuit, and described control circuit turn-offs or connect the power supply of heater.
2, coffee pot temperature controller according to claim 1, it is characterized in that: described temperature measurement circuit comprises electric capacity, thermistor, reference resistance and discharge circuit, the one I/O mouth order series thermal-sensitive resistance and the described electric capacity of microprocessor are formed first charge circuit, connect in proper order reference resistance and described electric capacity of the 2nd I/O mouth of microprocessor is formed second charge circuit, and the 3rd I/O mouth order discharged in series circuit and the described electric capacity of microprocessor are formed discharge loop.
3, coffee pot temperature controller according to claim 2, it is characterized in that: described discharge circuit is a discharge resistance.
4, according to claim 1 or 2 or 3 described coffee pot temperature controllers, it is characterized in that: described control circuit comprises on-off circuit and heater controller, the turn-on and turn-off of on-off circuit control heater controller, the heater controller turn-offs or connects the power supply of heater, and described microprocessor is by the turn-on and turn-off of the 4th I/O mouth gauge tap circuit.
5, coffee pot temperature controller according to claim 4, it is characterized in that: described on-off circuit comprises that base stage is electrically connected with the 4th I/O mouth of microprocessor, connect with the colelctor electrode triode of heater controller of emitter stage, described heater controller is relay or controllable silicon.
6, a kind of coffee pot, comprise the kettle body, be located at the interior heater of kettle body and control the temperature controller that it turns on and off according to its temperature value, it is characterized in that: described temperature controller comprises microprocessor, temperature measurement circuit and control circuit, described temperature measurement circuit detects the temperature of coffee pot heater and with the detection signal input microprocessor, described microprocessor is with the control signal output control circuit, and described control circuit turn-offs or connect the power supply of heater.
7, coffee pot according to claim 6, it is characterized in that: described temperature measurement circuit comprises electric capacity, thermistor, reference resistance and discharge circuit, the one I/O mouth order series thermal-sensitive resistance and the described electric capacity of microprocessor are formed first charge circuit, connect in proper order reference resistance and described electric capacity of the 2nd I/O mouth of microprocessor is formed second charge circuit, the 3rd I/O mouth of microprocessor order discharged in series circuit and described electric capacity are formed discharge loop, described thermistor be arranged at can sensing heater temperature the position.
8, coffee pot according to claim 7 is characterized in that: described discharge circuit is a discharge resistance.
9, according to claim 6 or 7 or 8 described coffee pots, it is characterized in that: described control circuit comprises on-off circuit and heater controller, the turn-on and turn-off of on-off circuit control heater controller, the heater controller turn-offs or connects the power supply of heater, and described microprocessor is by the turn-on and turn-off of the 4th I/O mouth gauge tap circuit.
10, coffee pot according to claim 9, it is characterized in that: described on-off circuit comprises that base stage is electrically connected with the 4th I/O mouth of microprocessor, connect with the colelctor electrode triode of heater controller of emitter stage, described heater controller is relay or controllable silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061562 CN2759313Y (en) | 2004-09-29 | 2004-09-29 | Temperature controller of coffeepot and coffeepot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061562 CN2759313Y (en) | 2004-09-29 | 2004-09-29 | Temperature controller of coffeepot and coffeepot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759313Y true CN2759313Y (en) | 2006-02-22 |
Family
ID=36081518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061562 Expired - Fee Related CN2759313Y (en) | 2004-09-29 | 2004-09-29 | Temperature controller of coffeepot and coffeepot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759313Y (en) |
-
2004
- 2004-09-29 CN CN 200420061562 patent/CN2759313Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101518409B (en) | Electric cooking appliance and heating control method thereof | |
| CN101513325B (en) | Electric cooking appliance and heating control method thereof | |
| CN107289474B (en) | Control method of induction cooker and induction cooker | |
| CN107708243A (en) | Electromagnetic heating cooker and control method and control device thereof | |
| CN107145173A (en) | Temperature sampling circuit, temperature sampling control method and household electrical appliance | |
| CN209269378U (en) | Heating control apparatus and heating vessel for heating vessel | |
| CN209966067U (en) | Cooking utensil | |
| CN2759313Y (en) | Temperature controller of coffeepot and coffeepot | |
| CN112839398B (en) | Electromagnetic heating device and dry burning detection method thereof | |
| CN206519171U (en) | Thermostat water bath | |
| CN208876130U (en) | A kind of controller of electric rice cooker of anti-Spill stopping pan | |
| CN102727021A (en) | Intelligent control DC (direct current) low-voltage electric heating quilt/blanket and intelligent control circuit of intelligent control DC low-voltage electric heating quilt/blanket | |
| CN204634073U (en) | Electromagnetic heating system and switching tube thereof open control device | |
| CN206760486U (en) | Aquarium Intelligent heating rod | |
| CN201364508Y (en) | Zero-voltage trigger electronic thermostat | |
| CN208188700U (en) | A kind of electric blanket temperature control device and electric blanket | |
| CN2384247Y (en) | Electric heating auto-controller | |
| CN2553349Y (en) | Hot water yield display device for electric water heater | |
| CN2574557Y (en) | Handy dinner machine | |
| CN201054793Y (en) | Sensing heating cable temperature adjuster | |
| CN106028479A (en) | Micro-computer automatic temperature control electric frying pan | |
| CN2164061Y (en) | Pressure-regulating timing temp controller | |
| CN2127589Y (en) | Intelligent control device of mult-functional electric pot | |
| CN202995491U (en) | Simple constant-temperature control circuit | |
| CN212409906U (en) | Temperature detection circuit and pressure cooking appliance |
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 HEERTAI E-INTELLIGENT CONTROL CO., LTD. Free format text: FORMER NAME OR ADDRESS: HEERTAI ELECTRONIC SCI-TECH CO., LTD. SHENZHEN |
|
| CP01 | Change in the name or title of a patent holder |
Address after: D building, block ten, Institute of international technology innovation, South ten road, hi tech Zone, Guangdong, Shenzhen, China: 518057 Patentee after: Shenzhen heertai electronic intelligent control Limited by Share Ltd Address before: D building, block ten, Institute of international technology innovation, South ten road, hi tech Zone, Guangdong, Shenzhen, China: 518057 Patentee before: Heertai Electronic Sci. & Tech. Co., Ltd., Shenzhen City |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Description item change Correct: ShenZhen H&T Intelligent Control CO., LTD. False: Shenzhen heertai electronic intelligent control Limited by Share Ltd Number: 35 Page: 872 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: BIBLIOGRAPHIC CHANGE; FROM: SHENZHEN HEERTAI E-INTELLIGENT CONTROL CO., LTD. TO: SHENZHEN AND INTELLIGENT CONTROL AND THAILAND CO. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20110929 |