CN204519127U - A kind of self-constant temperature fries tea machine - Google Patents
A kind of self-constant temperature fries tea machine Download PDFInfo
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- CN204519127U CN204519127U CN201520091281.6U CN201520091281U CN204519127U CN 204519127 U CN204519127 U CN 204519127U CN 201520091281 U CN201520091281 U CN 201520091281U CN 204519127 U CN204519127 U CN 204519127U
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Abstract
The utility model discloses a kind of self-constant temperature and fry tea machine, comprise boiler, the kitchen range top and be located at the frame that stir-fries on the kitchen range top, the erection that stir-fries has motor and stir-fries spoon, the furnace bottom of the kitchen range top is provided with main heater strip, it is constant that main heater strip is controlled by a temperature control unit control boiler heat, also comprises constant temperature control circuit, ring width control circuit, heater circuit, indicating circuit.Main heater strip is controlled by temperature control unit and carries out thermostatic control to boiler under normal circumstances, to ensure that it can stir-fry at a certain temperature, but crossing cold or other situations when weather causes the temperature-difference of the temperature on stove edge and furnace bottom too high, the thermoelectric voltage exported is higher than positive threshold voltage, the auxiliary resistance silk heating at pot edge place will be arranged on by heater circuit, promote pot edge temperature, both temperature differences are made to be less than the preset value of user, realize constant temperature regulation and control all the time, and can carry out when ventilation shaft blocks reporting to the police and shield the control signal of temperature control unit, ensure that security of the present utility model.
Description
Technical field
The utility model relates to a kind of stir-fry tea machine, fries tea machine more specifically to a kind of self-constant temperature.
Background technology
Tealeaves is the important agricultural product of China, forms with the tender leaf frying of tea tree.Tealeaves of today has manual frying and mechanical frying to form, and the tea quality of manual frying is good, but efficiency is low, frangible, wastes blue or green tealeaves.Along with the continuous renewal of frying tea equipment, automanual Domestic machine for treating tea is day by day popularized, and it is convenient and convenient to bring to numerous tea growers, so promote machinery to fry tea, just becomes the necessary ways of current industry Promote Competitive.But existing stir-fry tea machine precision is not high, nearly all just transfer in frame by traditional native stove, mechanization degree is low, is unfavorable for raising the efficiency further.How to improve machinery and fry this defect of tea, become the problem that industry equipment development personnel are devoted to capture.In application process also middle discovery, the stir-fry tea machine heating of conventional gas heating is uneven.
So, market discloses a kind of electric machine for heating tea that a kind of application number is 201310345709.0, by arranging roundabout one-tenth relative to semicircular first heater strip of one-tenth and the second heater strip, the real-time monitoring feedback heater to furnace temperature is realized by sensor, play a thermostatically controlled effect, but generally, due to the setting of combustion flue, the temperature of temperature often higher than stove edge of furnace bottom is a lot, but tealeaves can be caused like this to be heated in switching process inequality, cause frying tea quality to be affected, particularly when external condition is cold, quality is more easily affected.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide one to detect respectively along temperature bottom temperature and stove and asks poor, ensures that its stove can not be too low along temperature.
For achieving the above object, the utility model provides following technical scheme: a kind of self-constant temperature fries tea machine, comprise boiler, the kitchen range top and the frame that stir-fries be located on the kitchen range top, the described erection that stir-fries has motor and stir-fries spoon, the furnace bottom of the described kitchen range top is provided with main heater strip, it is constant that described main heater strip is controlled by a temperature control unit control boiler heat, it is characterized in that: the stove of the described kitchen range top is provided with auxiliary heating silk along place, also comprise constant temperature control circuit, described constant temperature control circuit comprises sensor circuit, for the temperature of the furnace bottom and stove edge that detect boiler respectively, and export thermoelectric voltage, ring width control circuit, is connected to sensor circuit, when described thermoelectric voltage exports heating signal higher than during positive threshold voltage, when described thermoelectric voltage is lower than negative threshold voltage, and output abnormality signal,
Heater circuit, is connected to ring width control circuit, when receiving heating signal, controls described auxiliary heating silk enable; Indicating circuit, is connected to ring width control circuit, indicates heating work state when receiving heating signal.
Main heater strip is controlled by temperature control unit and carries out thermostatic control to boiler under normal circumstances, to ensure that it can stir-fry at a certain temperature, but crossing cold or other situations when weather causes the temperature-difference of the temperature on stove edge and furnace bottom too high, the thermoelectric voltage exported is higher than positive threshold voltage, the auxiliary resistance silk heating at pot edge place will be arranged on by heater circuit, promote pot edge temperature, make both temperature differences be less than the preset value of user, realize constant temperature regulation and control all the time.
The utility model can be set to further: described sensor circuit comprises the first testing circuit, for detecting the bottom temperature of boiler, and exports the first thermometric voltage; Second testing circuit, for detecting the stove of boiler along temperature, and exports the second thermometric voltage; Difference channel, is connected to the first testing circuit and the second testing circuit, receives the first thermometric voltage and the second thermometric voltage, and exports thermoelectric voltage.Detected respectively by the first temperature measurement circuit and the second temperature measurement circuit, ensure that the precision of detection, again reduce disturbance.
The utility model can be set to further: described constant temperature control circuit also comprises exception control circuit, is connected to ring width control circuit, receives abnormal signal and exports shielded signal; Main heating wire screened circuit, an end is connected to be located between temperature control unit and main heater strip, for shielding the heating signal that temperature control unit sends.Also may there is a kind of situation, be exactly the temperature of temperature lower than stove edge of furnace bottom, the reason of this situation of general appearance is the thermal current effect because line clogging causes, make whole kitchen range top upper temp higher, now be prone to accidents, so detect this abnormal signal, make the signal conductively-closed of temperature control signals unit, main heater strip can not continue heating boiler, ensure that safe handling.
The utility model can be set to further: described indicating circuit also comprises warning circuit, is connected to ring width control circuit, when receiving abnormal signal, reminds user's abnormality.When there being abnormal signal to produce, the same alarm of circuit, can play the effect that is reminded user.
Compared to prior art, the utility model creates following beneficial effect: main heater strip is controlled by temperature control unit and carries out thermostatic control to boiler under normal circumstances, to ensure that it can stir-fry at a certain temperature, but crossing cold or other situations when weather causes the temperature-difference of the temperature on stove edge and furnace bottom too high, the thermoelectric voltage exported is higher than positive threshold voltage, the auxiliary resistance silk heating at pot edge place will be arranged on by heater circuit, promote pot edge temperature, both temperature differences are made to be less than the preset value of user, realize constant temperature regulation and control all the time, and can carry out when ventilation shaft blocks reporting to the police and shield the control signal of temperature control unit, ensure that security of the present utility model.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of the utility model embodiment;
Fig. 2 is the circuit diagram one of the utility model embodiment;
Fig. 3 is the circuit diagram two of the utility model embodiment.
Reference numeral: a1, boiler; A11, stove edge; A12, furnace bottom; A2, the kitchen range top; A21, ventilation shaft; A3, stir-fry frame; A31, motor; A32, stir-fry spoon; A33, temperature control panel; A41, main heater strip; A42, auxiliary heating silk; 11, the first testing circuit; 12, the second testing circuit; 2, difference channel; 31, the first comparator; 32, the second comparator; 41, indicating circuit; 42, warning circuit; 51, heater circuit; 52, exception control circuit; 6, main heating wire screened circuit.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the utility model embodiment is described further.
A kind of self-constant temperature fries tea machine, comprise boiler a1, kitchen range top a2 and the frame a3 that stir-fries be located on kitchen range top a2, the described frame a3 that stir-fries is provided with motor a31 and stir-fries a spoonful a32, the furnace bottom a12 of described kitchen range top a2 is provided with main heater strip a41, it is constant that described main heater strip a41 is controlled by a temperature control unit control boiler a1 heat, user can arrange temperature and the heat time of needs by temperature control panel a33, ventilation shaft a21 is used for realizing controlling thermal current, improve the efficiency of heating surface, the stove of described kitchen range top a2 is provided with auxiliary heating silk a42 along place, also comprise constant temperature control circuit, described constant temperature control circuit comprises
Described sensor circuit comprises the first testing circuit 11, for detecting furnace bottom a12a11 temperature, and exports the first thermometric voltage; Second testing circuit 12, for detecting stove along a11a12 temperature, and exports the second thermometric voltage; First testing circuit 11 comprise be connected in series with power level and ground end between the first adjustable resistance R1 and the first thermistor R2; Second testing circuit 12 comprise be connected in series with power level and ground end between the second adjustable resistance R3 and the second thermistor R4, because generally stove to be less than the temperature of furnace bottom a12 along the temperature in a11, so can be controlled detected temperatures output voltage by the resistance of adjustment first adjustable resistance R1 and the second adjustable resistance R3 when detecting, first adjustable resistance R1 maximum value and the second adjustable resistance R3 maximum value are preferably 1000 ohm, and described two thermistors are all high-precision linear semistor.
Difference channel 2, is connected to the first testing circuit 11 and the second testing circuit 12, receives the first thermometric voltage and the second thermometric voltage, and export thermoelectric voltage.Difference channel 2 comprises the amplifier that a model is 741, the 5th resistance R5 is connected with between the node that its positive input terminal and the first adjustable resistance R1 and the first thermistor R2 are formed, and be connected with the 6th resistance R6 between ground end, the 7th resistance R7 is connected with between the node that its negative input end and the second adjustable resistance R3 and the second thermistor R4 are formed, and be connected with the 8th resistance R8 between self output, by arranging the isobaric subtracter of formation one like this, its output voltage is that the first thermometric voltage and the second thermometric voltage ask poor result.Described 5th, the 6th, the 7th, the 8th resistance R8 resistance all elects 10 kilo-ohms as.
Ring width control circuit 3, is connected to sensor circuit, when described thermoelectric voltage exports the first heating signal higher than during positive threshold voltage Vref1, when described thermoelectric voltage is lower than negative threshold voltage Vref2, exports the second heating signal; Described ring width control circuit comprises the first comparator 31, and its positive input terminal receives thermoelectric voltage, and its negative input end receives positive threshold voltage; Second comparator 32, its negative input end receives thermoelectric voltage, and its positive input terminal receives negative threshold voltage.Described negative threshold voltage is obtained by precision resister dividing potential drop by power-level, and positive threshold voltage is obtained by power supply positive level dividing potential drop, then this does not repeat.
Heater circuit 51, is connected to ring width control circuit, when receiving heating signal, controls described auxiliary heating silk a42 enable; Comprise the first switching tube Q1, it controls pole and is connected to the output of the first comparator 31, and controls auxiliary electrical heated filament Rl1 and work.
Exception control circuit 52, is connected to ring width control circuit, receives abnormal signal and exports shielded signal; Comprise second switch pipe Q2, it controls pole and is connected to the second comparator 32, and the coil controlling DC relay KM1 obtains dead electricity.
A command switch is connected between the source electrode that its first switching tube Q1 and second switch pipe Q2 shares and power supply, can when not needing to use, shielding auxiliary electrical heated filament Rl1 and relay K M1 work, but do not shield indicating circuit 41 and warning circuit 42 works, the current duty of prompting user.
Indicating circuit 41, is connected to ring width control circuit, indicates heating work state when receiving heating signal.Comprise the first luminous tube EL1 that is connected to the first comparator output terminal, its color is chosen as amber light.
Warning circuit 42, is connected to ring width control circuit, when receiving abnormal signal, reminds user's abnormality.Comprise and holding with being connected in series with and the buzzer SP of the first comparator output terminal and the second luminous tube EL2, the second luminous tube EL2 is chosen as red light.
Main heating wire screened circuit 6, end is connected to be located between temperature control unit and main heater strip a41, for shielding the heating signal that temperature control unit sends.Comprising the 3rd switching tube Q3, for controlling main electric-heating-wire-heating, between its 3rd switching tube and control pole, being also connected to relay normally open contact km1, when relay contact is by adhesive, the control of shielding control unit.
The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a self-constant temperature fries tea machine, comprise boiler, the kitchen range top and be located at the frame that stir-fries on the kitchen range top, the described erection that stir-fries has motor and stir-fries spoon, the furnace bottom of the described kitchen range top is provided with main heater strip, it is constant that described main heater strip is controlled by a temperature control unit control boiler heat, it is characterized in that: the stove of the described kitchen range top is provided with auxiliary heating silk along place, also comprises constant temperature control circuit, and described constant temperature control circuit comprises
Sensor circuit, for the temperature of the furnace bottom and stove edge that detect boiler respectively, and exports thermoelectric voltage;
Ring width control circuit, is connected to sensor circuit, when described thermoelectric voltage exports heating signal higher than during positive threshold voltage, when described thermoelectric voltage is lower than negative threshold voltage, and output abnormality signal;
Heater circuit, is connected to ring width control circuit, when receiving heating signal, controls described auxiliary heating silk enable;
Indicating circuit, is connected to ring width control circuit, indicates heating work state when receiving heating signal.
2. a kind of self-constant temperature according to claim 1 fries tea machine, it is characterized in that: described sensor circuit comprises
First testing circuit, for detecting the bottom temperature of boiler, and exports the first thermometric voltage;
Second testing circuit, for detecting the stove of boiler along temperature, and exports the second thermometric voltage;
Difference channel, is connected to the first testing circuit and the second testing circuit, receives the first thermometric voltage and the second thermometric voltage, and exports thermoelectric voltage.
3. a kind of self-constant temperature according to claim 1 and 2 fries tea machine, it is characterized in that: described constant temperature control circuit also comprises
Exception control circuit, is connected to ring width control circuit, receives abnormal signal and exports shielded signal;
Main heating wire screened circuit, an end is connected to be located between temperature control unit and main heater strip, for shielding the heating signal that temperature control unit sends.
4. a kind of self-constant temperature according to claim 3 fries tea machine, it is characterized in that: described indicating circuit also comprises
Warning circuit, is connected to ring width control circuit, when receiving abnormal signal, reminds user's abnormality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091281.6U CN204519127U (en) | 2015-02-07 | 2015-02-07 | A kind of self-constant temperature fries tea machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520091281.6U CN204519127U (en) | 2015-02-07 | 2015-02-07 | A kind of self-constant temperature fries tea machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204519127U true CN204519127U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520091281.6U Expired - Fee Related CN204519127U (en) | 2015-02-07 | 2015-02-07 | A kind of self-constant temperature fries tea machine |
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| CN (1) | CN204519127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105410222A (en) * | 2015-12-21 | 2016-03-23 | 衡阳智源农业科技有限公司 | Novel tea leaf stirring-frying machine |
| CN113973932A (en) * | 2021-10-29 | 2022-01-28 | 四川绿源春茶业有限公司 | Temperature-controlled tea roller continuous fixation machine |
-
2015
- 2015-02-07 CN CN201520091281.6U patent/CN204519127U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105410222A (en) * | 2015-12-21 | 2016-03-23 | 衡阳智源农业科技有限公司 | Novel tea leaf stirring-frying machine |
| CN113973932A (en) * | 2021-10-29 | 2022-01-28 | 四川绿源春茶业有限公司 | Temperature-controlled tea roller continuous fixation machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160207 |