CN2268946Y - Controller for electric heating - Google Patents
Controller for electric heating Download PDFInfo
- Publication number
- CN2268946Y CN2268946Y CN 96215406 CN96215406U CN2268946Y CN 2268946 Y CN2268946 Y CN 2268946Y CN 96215406 CN96215406 CN 96215406 CN 96215406 U CN96215406 U CN 96215406U CN 2268946 Y CN2268946 Y CN 2268946Y
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- CN
- China
- Prior art keywords
- circuit
- temperature
- pin
- cabinet
- electric
- 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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- Cookers (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The utility model relates to a controller for electric heating, which is composed of a machine box, a power supply input plug, an electronic control circuit, a controlled power supply output socket and a temperature inductor. When used, the temperature inductor can be affixed on a cover of an electric heating cooker; the electronic control circuit is composed of a power supply part, a timer chip control circuit, an output drive circuit, a heating indication circuit, a temperature sensor and a setting temperature alarm circuit. The controller for electric heating improves automatic temperature controlling, heating or heat-insulating functions to the ordinary electric cooker according to the temperature which is set by users, and the controller for electric heating has the effect of small size, low consumption, low price and convenient use.
Description
The utility model relates to a kind of electric heating temperature control device that electrical heated appliance is carried out design temperature control.
At present, domestic electric heating cookers such as popular " electric cooker ", " insulating pot ", " electric heater ", because price is low and easy to maintenance, the town and country use amount is very big in China.But because described popular electric-heating cooking utensil does not have the automatic control function of design temperature, wherein electric cooker is also only boiled the anti-protected by temperature limitation function of sticking with paste of meal dry, but adopt heating membrane type continuously, shortcoming is: at first in use, especially heat up water, cook congee, boil in a covered pot over a slow fire when enduring food, need someone guard, otherwise overflow, dryout, burn phenomenon; Next is to heat the characteristic of cooking that membrane type does not meet most of foods continuously, and not only flavour is not good, and waste of energy is serious.
The purpose of this utility model is to popular electric-heating cooking utensil has increased small and exquisite, the low consumption, inexpensive, easy to use of carrying out temperature automatically controlled heating or heat insulation function by user's design temperature, popular electric-heating cooking utensil at a low price can be upgraded to a kind of electric heating temperature control device with the high-grade electric-heating cooking utensil of expensive robotization.
The utility model by: cabinet 1, power input plug 2, electronic control circuit, controlled source accessory power outlet 5, temperature inductor 4 five parts are formed, cabinet is combined as a whole with screw or hasp by drain pan and case, the conduction inserted sheet of power input plug 2 is directly installed on the cabinet drain pan, can be plugged in user's the supply socket together with cabinet 1, the circuit board of electronic control circuit and electric elements thereof are installed in the inside of cabinet 1; It is characterized in that: temperature sensor 4 can be placed in the collection groove of cabinet drain pan lower end together with its lead-in wire, pulls out lead-in wire during use, and sensor is attached at covering of electric-heating cooking utensil 3, and controlled source accessory power outlet 5 is set directly on the case of cabinet 1; Electronic control circuit is made up of: power transformer 6, current rectifying and wave filtering circuit 7, electronics integrated regulator 8, integrated timer chip controls circuit 9, output driving circuit 10, heating indicating circuit 11, design temperature regulating circuit 12, temperature sensor 4 and constant temperature warning circuit 13; Described integrated timer chip controls circuit 9 is 555 o'clock base chips, and its pin 2 is connected to by temperature control regulator potentiometer R
1, the design temperature regulating circuit 12 of composition, pin 5 is connected to by U
5-U
8The temperature sensor of forming 4, pin 4,7,8 connects power positive end, and pin 1 connects ground-side of power, and pin 3 is the output terminal of integrated timer chip controls circuit 9, the triode U of pin 3 and output driving circuit
13Base stage be connected triode U
13Collector in be serially connected with relay J
1The line bag, J
1The contact be serially connected in connecing in the ac power supply circuit of controlled source socket 5, pin 2 constantly compares with the signal of pin 5, when the temperature that is heated article in the cooker does not reach design temperature, pin 3 output high level, J
1Adhesive, the controlled source accessory power outlet gets electric, when reaching design temperature to temperature that surpass to set, pin 3 output low levels, J
1Disconnect controlled source accessory power outlet dead electricity; Described pin 3 output terminals also with one by U
15, U
14With loudspeaker Y
1The constant temperature warning circuit of forming 13 is connected, and when pin 3 output low levels, sends alerting signal.
The utility model integrates the version of cabinet, power input plug, electronic control circuit and controlled source accessory power outlet, saved the forceful electric power connecting conducting wire, compact not only, easy to use safe, reduce cost, and need not user's electric-heating cooking utensil is done directly to use this temperature controller under the situation of any change.This device control accuracy height except that being directly used in electric-heating cooking utensil control, also can be used for fuel oils such as control electromagnetic valve, motorized valve, electromagnet, combustion vapour cooker carries out design temperature control.Suitably expand the output current size or the out-put supply number of phases by relay, friendship (directly) stream contactor, can be to electric dry oven, realize incubator, incubator, send out pure the pond, equipment such as water carries out design temperature control and warning on the greenhouse, poultry hatching chamber, seed germinating cabinet, boiler stagnation temperature.
The drawing explanation:
Fig. 1 is the structural representation of electric heating temperature control device of the present utility model.
Fig. 2 is an electric heating temperature control device electrical schematic diagram of the present utility model.
The utility model principle of work is as follows: power transformer 6 is used for the 220V voltage from the electrical network input, be reduced to safe low-voltage output, not only can provide the operating voltage that adapts with electronic control circuit, and electronic control circuit and electrical network are reliably isolated, it is safer that temperature controller is used.Current rectifying and wave filtering circuit 7 is rectified into influent stream voltage with the low-voltage of power transformer 6 outputs, and behind the filtering pulsation electric wave, supplies with electronics integrated regulator 8 and output driving circuit 10 uses; Electronics integrated regulator 8 will be stablized into the precision voltage source of high stability from the direct supply of current rectifying and wave filtering circuit 7 inputs, and supplying temperature sensor 4 and other control circuit use, and will be precise and stable to guarantee the control of entire circuit system.Integrated timer chip 555 time base circuits are core components of this temperature controller, be used for temperature with the electric-heating cooking utensil of temperature sensor 4 detections, constantly compare with 12 predefined control temperature spots of design temperature regulating circuit, when the temperature that is heated article in cooker does not reach design temperature, the 3 pin output high-level control signal of 555 chips, the one, drive output driving circuit 10, make relay J
1The contact adhesive, controlled source accessory power outlet 5, controlled electric-heating cooking utensil is continued the energising heating, the 2nd, drive heating indicating circuit 11, make " heating " pilot lamp on the skin plate light, tell the user, the electric-heating cooking utensil heating of switching on this moment, when in case the cooker temperature is heated to design temperature, 555 chips are the output low level control signal immediately, cuts off the heating power supply of electric-heating cooking utensil, and burner on light extinguishes, simultaneously, drive constant temperature warning circuit 13 and send the continuous alarm sound of " ticking-tick-tick ", the prompting user, the article in the electric-heating cooking utensil have been heated to predetermined temperature, can take, or be handled.Otherwise when the temperature for the treatment of article in the electric-heating cooking utensil dropped to than the low certain numerical value of design temperature naturally, next Control Circulation was carried out again automatically, until reaching the desirable effect of cooking.The mode of cooking of this automatic backlash heating need not the special messenger and keeps an eye on, and the food flavour of cooking is better, and can save a large amount of electricity charge.
The initial designs purpose of 555 chips is as timer usefulness, wherein has one to go up comparer A
1, this is high precision, high sensitivity comparer that a double-mirror constant current source is done load.In general the use, A
1Only, be far from bringing into play its function as circuit reset usefulness.The utility model is with the comparer A on 555 chips
1With following comparer A
2Differential type threshold voltage testing circuit of common composition.Last comparer A
1Instead not to i.e. 5 pin of input end, with following comparer A
2Reverse input end 2 pin between, that access is got by temperature sensor 4 conversion, with control the relevant threshold voltage of temperature upper lower limit value, after open loop is amplified, compare with the voltage that is connected on 12 preset of design temperature regulating circuit on 2 pin, with comparative result, decide the state of a control of output circuit.The 5th pin also provides direct-current working volts to temperature sensor 5 simultaneously.
Constant temperature warning circuit 13 is provided with K switch
1, keep the environment peace and quiet so that turn-off alarm sound in some occasion.
Temperature sensor 4 is made up of several semiconductor diodes and extension line, will semiconductor diode be mounted on the metal conducting strip after the series connection, and diode and lead-in wire and metal conducting strip mutually insulated on electric encapsulates with resin material and forms.Because of forward " junction voltage/temperature " family curve of semiconductor diode PN junction, it has good linearty, very high precision and repeatability, thereby this electric heating temperature control utensil has high control precision.
The jack structure of controlled source accessory power outlet 5 is that two slots are all arranged in each jack, is equipped with a slice elastic metallic conducting strip in each slot, and the elastic force direction of every conducting strip is all towards the jack central plane.
This device is applicable to the design temperature and the controlling alarm of various device.
Claims (1)
- A kind of electric heating temperature control device, it by: cabinet 1, power input plug 2, electronic control circuit, controlled source accessory power outlet 5, temperature inductor 4 five parts are formed, cabinet is combined as a whole with screw or hasp by drain pan and case, the conduction inserted sheet of power input plug 2 is directly installed on the cabinet drain pan, can be plugged in user's the supply socket together with cabinet 1, the circuit board of electronic control circuit and electric elements thereof are installed in the inside of cabinet 1; It is characterized in that: temperature sensor 4 can be placed in the collection groove of cabinet drain pan lower end together with its lead-in wire, pulls out lead-in wire during use, and sensor is attached at covering of electric-heating cooking utensil 3, and controlled source accessory power outlet 5 is set directly on the case of cabinet 1; Electronic control circuit is made up of: power transformer 6, current rectifying and wave filtering circuit 7, electronics integrated regulator 8, integrated timer chip controls circuit 9, output driving circuit 10, heating indicating circuit 11, design temperature regulating circuit 12, temperature sensor 4 and constant temperature warning circuit 13; Described integrated timer chip controls circuit 9 is 555 o'clock base chips, and its pin 2 is connected to by temperature control regulator potentiometer R 1, the design temperature regulating circuit 12 of composition, pin 5 is connected to by U 5-U 8The temperature sensor of forming 4, pin 4,7,8 connects power positive end, and pin 1 connects ground-side of power, and pin 3 is the output terminal of integrated timer chip controls circuit 9, the triode U of pin 3 and output driving circuit 13Base stage be connected triode U 13Collector in be serially connected with relay J 1The line bag, J 1The contact be serially connected in connecing in the ac power supply circuit of controlled source socket 5, pin 2 constantly compares with the signal of pin 5, when the temperature that is heated article in the cooker does not reach design temperature, pin 3 output high level, J 1Adhesive, the controlled source accessory power outlet gets electric, when reaching design temperature to temperature that surpass to set, pin 3 output low levels, J 1Disconnect controlled source accessory power outlet dead electricity; Described pin 3 output terminals also with one by U 15, U 14With loudspeaker Y 1The constant temperature warning circuit of forming 13 is connected, and when pin 3 output low levels, sends alerting signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215406 CN2268946Y (en) | 1996-07-10 | 1996-07-10 | Controller for electric heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215406 CN2268946Y (en) | 1996-07-10 | 1996-07-10 | Controller for electric heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2268946Y true CN2268946Y (en) | 1997-11-26 |
Family
ID=33897208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96215406 Expired - Fee Related CN2268946Y (en) | 1996-07-10 | 1996-07-10 | Controller for electric heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2268946Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139775A (en) * | 2011-03-04 | 2011-08-03 | 南通富士通微电子股份有限公司 | Preheating system for plastic packaging product |
| CN109806504A (en) * | 2019-03-21 | 2019-05-28 | 雅安职业技术学院 | A kind of temperature automatically controlled Radiation lamp for medical use |
-
1996
- 1996-07-10 CN CN 96215406 patent/CN2268946Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139775A (en) * | 2011-03-04 | 2011-08-03 | 南通富士通微电子股份有限公司 | Preheating system for plastic packaging product |
| CN109806504A (en) * | 2019-03-21 | 2019-05-28 | 雅安职业技术学院 | A kind of temperature automatically controlled Radiation lamp for medical use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |