CN106325330A - Thermostatic control circuit for bird egg incubator - Google Patents
Thermostatic control circuit for bird egg incubator Download PDFInfo
- Publication number
- CN106325330A CN106325330A CN201610914075.XA CN201610914075A CN106325330A CN 106325330 A CN106325330 A CN 106325330A CN 201610914075 A CN201610914075 A CN 201610914075A CN 106325330 A CN106325330 A CN 106325330A
- Authority
- CN
- China
- Prior art keywords
- resistance
- module
- control circuit
- temperature control
- incubator
- 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.)
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Abstract
The invention provides a thermostatic control circuit for a bird egg incubator. A timer comprises an NE555 module, a resistor and a capacitor. When the temperature of the bird egg incubator is lower than a set temperature, the resistance value of a thermistor with a negative temperature coefficient is high, a pin 2 of the NE555 module is low in potential, the timer starts time-count cycle, a pin 3 of the NE555 module outputs high level, a bidirectional thyristor VS is conducted, a heater EH starts heating, and an indicator lamp Ne is turned on. When the temperature in the incubator is higher than a set value and time-count cycle is not yet completed, as the resistance value of the thermistor is reduced, the pin 2 of the NE555 module is turned to high potential, the heater EH is cut off after timing cycle is finished, otherwise, heating is continued, and thermostatic control is achieved. The whole circuit is provided with fewer elements, control lines are simple, temperature control is accurate, operation is stable, the temperature is not easily out of control, and the thermostatic control circuit is excellent in use effect.
Description
Technical field
The present invention relates to a kind of control circuit, the constant temperature control circuit of a kind of incubator for poultry, belong to electronics skill
Art field.
Background technology
The mode that poultry hatching typically used poultry to sit on eggs in the past is carried out, and this mode can be only applied to the small-scale of family
Hatching.Along with development and the progress of science and technology of society, the most modern poultry producer hatches poultry on a large scale and typically uses special
Incubator for poultry carry out, this hatching pattern is independent of poultry and sits on eggs, but use incubator is carried out electric heating warming method
Carrying out artificial incubation, this mode hatching efficiency is high, time saving and energy saving, can operate with scale.For incubator for poultry, in order to
Guaranteeing hatching success, the most important temperature constant sought in holding case, therefore incubator for poultry is generally fitted provided with perseverance
The temperature inside the box is automatically adjusted by temperature control circuit.But, the constant temperature control circuit of incubator for poultry on the market is generally deposited
In place of some shortcomings, mainly using element numerous, control complex circuit, temperature controls inaccuracy, after working long hours
It is susceptible to temperature control fault, brings loss to raiser.Therefore developing a control simple, temperature control is accurately and working stability
Incubator for poultry constant temperature control circuit seem necessary.
Summary of the invention
It is an object of the invention to provide the constant temperature control circuit of a kind of incubator for poultry, to solve existing incubator for poultry
Constant temperature control circuit uses element numerous, controls complex circuit, and temperature controls inaccuracy, is susceptible to temperature after working long hours
The problems such as hardover failure.
The concrete technical scheme of the present invention is:
A kind of constant temperature control circuit of incubator for poultry, it uses time base circuit NE555 module to build as control core,
Wherein 220V civil power is after transformator T transformation, rectifier bridge D1～D4 all wave rectification, forms the DC output end at positive and negative the two poles of the earth；Directly
The negative pole of stream outfan, as ground end, connects one end of resistance R5, electricity after the positive pole forward concatenation diode D5 of DC output end
The resistance positive pole of another termination capacitor C1 of R5, one end of resistance R1,4 feet of NE555 module and 8 feet, one end of adjustable resistance RP
And adjustable side, the minus earth of electric capacity C1；Another termination the 5 of NE555 module, 7 feet and one end of electric capacity C2, the electric capacity of resistance R1
The other end ground connection of C2；The other end concatenation critesistor Rt of adjustable resistance RP is followed by 2 feet and the one of resistance R3 of NE555 module
End, the other end ground connection of resistance R3；1 foot ground connection of NE555 module, one end of 3 foot connecting resistance R2 and R4, the other end of resistance R2
Connect the control pole of bidirectional thyristor VS, the positive pole of the other end sending and receiving optical diode D6 of resistance R4, the negative pole of light emitting diode D6
Ground connection；The L line of 220V civil power connects one end of heater, the first anode of another termination bidirectional thyristor VS of heater, two-way
The second plate of IGCT VS connects the N line of 220V civil power.
The value relatable of described adjustable resistance RP, critesistor Rt and resistance R3 need to meet Rt+RP=2R3.
Described resistance R4 uses the resistance of 470 Ω, and light emitting diode D6 uses red LED display lamp, bidirectional thyristor VS
Using KS10A/500V, adjustable resistance RP to use WS-0.5W type, critesistor Rt uses MF12 series.
Advantages of the present invention is: compare with the constant temperature control circuit of common incubator for poultry, incubator for poultry of the present invention
Constant temperature control circuit uses time base circuit NE555 module to build as control core, the timing consisted of NE555 module
Bidirectional thyristor is controlled by device, and then the start and stop state controlling heater reaches the purpose of constant temperature.The present invention is whole
Component is few, controls circuit simple, and temperature controls accurately, and working stability is also less likely to occur temperature even if working long hours
Out-of-control phenomenon, using effect is the best.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the constant temperature control circuit of incubator for poultry of the present invention.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, the constant temperature control circuit of the incubator for poultry of the present invention uses time base circuit NE555 module as control
Core processed builds, and wherein 220V civil power is after transformator T transformation, rectifier bridge D1～D4 all wave rectification, forms positive and negative the two poles of the earth
DC output end；The negative pole of DC output end, as ground end, connects after the positive pole forward concatenation diode D5 of DC output end
One end of resistance R5, the positive pole of another termination capacitor C1 of resistance R5, one end of resistance R1,4 feet of NE555 module and 8 feet, can
Adjust one end and adjustable side, the minus earth of electric capacity C1 of resistance RP；Another termination the 5 of NE555 module, 7 feet and the electricity of resistance R1
Hold one end of C2, the other end ground connection of electric capacity C2；The other end concatenation critesistor Rt of adjustable resistance RP is followed by NE555 module
2 feet and one end of resistance R3, the other end ground connection of resistance R3；1 foot ground connection of NE555 module, the one of 3 foot connecting resistance R2 and R4
End, the control pole of another termination bidirectional thyristor VS of resistance R2, the positive pole of the other end sending and receiving optical diode D6 of resistance R4, send out
The minus earth of optical diode D6；The L line of 220V civil power connects one end of heater, another termination bidirectional thyristor of heater
The first anode of VS, the second plate of bidirectional thyristor VS connects the N line of 220V civil power.Described adjustable resistance RP, critesistor Rt
Rt+RP=2R3 need to be met with the value relatable of resistance R3.
The constant temperature control circuit workflow of the incubator for poultry of the present invention is: 220V civil power is through transformator T transformation, rectification
Bridge D1～D4 all wave rectification, after diode D5 isolation, resistance R5 dividing potential drop and electric capacity C1 filtering, provide+12V's to NE555 module
Running voltage.NE555 module and resistance R1, electric capacity C2 form intervalometer, timing t=R1C2.Temperature when incubator for poultry
When degree is less than design temperature, the resistance of the critesistor Rt of negative temperature coefficient is relatively big, and 2 feet of NE555 module are in electronegative potential, fixed
Time device start time-count cycle, NE555 module 3 feet output high level, bidirectional thyristor VS turn on, light emitting diode D6 lights,
Heater EH heats；When higher than setting value, time-count cycle not yet completes the temperature inside the box, owing to the resistance of critesistor Rt becomes
Little, NE555 module 2 feet overturn to high potential, heater EH is just cut off after timing cycle terminates, otherwise heating continue into
OK, thermostatically controlled purpose is thus reached.The purpose arranging timing cycle is to consider that incubator for poultry has thermal inertia.
Above-mentioned legend is only the exemplary embodiments of the present invention, is not limited to the present invention, all spirit in the present invention and
Any amendment made within principle or equivalent and improvement etc., should be included within the scope of the present invention.
Claims (3)
1. a constant temperature control circuit for incubator for poultry, is characterized in that: described constant temperature control circuit uses time base circuit NE555
Module builds as control core, and wherein 220V civil power is after transformator T transformation, rectifier bridge D1～D4 all wave rectification, shape
Become the DC output end at positive and negative the two poles of the earth；The negative pole of DC output end concatenates two grades as ground end, the positive pole forward of DC output end
After pipe D5 connect resistance R5 one end, the positive pole of another termination capacitor C1 of resistance R5, one end of resistance R1, the 4 of NE555 module
Foot and 8 feet, one end of adjustable resistance RP and adjustable side, the minus earth of electric capacity C1；Another termination NE555 module of resistance R1
5,7 feet and one end of electric capacity C2, the other end ground connection of electric capacity C2；The other end concatenation critesistor Rt of adjustable resistance RP is followed by
2 feet of NE555 module and one end of resistance R3, the other end ground connection of resistance R3；1 foot ground connection of NE555 module, 3 foot connecting resistances
One end of R2 and R4, the control pole of another termination bidirectional thyristor VS of resistance R2, the other end sending and receiving optical diode of resistance R4
The positive pole of D6, the minus earth of light emitting diode D6；The L line of 220V civil power connects one end of heater, another termination of heater
The first anode of bidirectional thyristor VS, the second plate of bidirectional thyristor VS connects the N line of 220V civil power.
Constant temperature control circuit the most according to claim 1, is characterized in that: described adjustable resistance RP, critesistor Rt and electricity
The value relatable of resistance R3 need to meet Rt+RP=2R3.
Constant temperature control circuit the most according to claim 1, is characterized in that: described resistance R4 uses the resistance of 470 Ω, luminous
Diode D6 uses red LED display lamp, and bidirectional thyristor VS uses KS10A/500V, adjustable resistance RP to use WS-0.5W type,
Critesistor Rt uses MF12 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914075.XA CN106325330A (en) | 2016-10-20 | 2016-10-20 | Thermostatic control circuit for bird egg incubator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610914075.XA CN106325330A (en) | 2016-10-20 | 2016-10-20 | Thermostatic control circuit for bird egg incubator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106325330A true CN106325330A (en) | 2017-01-11 |
Family
ID=57818988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610914075.XA Pending CN106325330A (en) | 2016-10-20 | 2016-10-20 | Thermostatic control circuit for bird egg incubator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106325330A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201966453U (en) * | 2011-03-21 | 2011-09-07 | 北京联合大学 | Temperature control socket for electric soldering iron |
| CN102183980A (en) * | 2011-04-28 | 2011-09-14 | 刘家发 | Temperature control timer prepared from time-base circuit |
| US20150083708A1 (en) * | 2012-06-13 | 2015-03-26 | Edan Instruments, Inc. | Self-calibration temperature control device and method |
| CN204496316U (en) * | 2015-04-12 | 2015-07-22 | 陈照明 | A kind of Intelligent heating circuit based on 555 timers |
| CN104834335A (en) * | 2015-04-30 | 2015-08-12 | 苏州锟恩电子科技有限公司 | Thermostatic control circuit for fowl egg hatching |
| CN204557248U (en) * | 2015-04-22 | 2015-08-12 | 郑州职业技术学院 | A kind of electron temperature automaton |
| CN204595641U (en) * | 2015-05-15 | 2015-08-26 | 富阳怀邦机械有限公司 | A kind of high-precision temperature regulating circuit |
-
2016
- 2016-10-20 CN CN201610914075.XA patent/CN106325330A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201966453U (en) * | 2011-03-21 | 2011-09-07 | 北京联合大学 | Temperature control socket for electric soldering iron |
| CN102183980A (en) * | 2011-04-28 | 2011-09-14 | 刘家发 | Temperature control timer prepared from time-base circuit |
| US20150083708A1 (en) * | 2012-06-13 | 2015-03-26 | Edan Instruments, Inc. | Self-calibration temperature control device and method |
| CN204496316U (en) * | 2015-04-12 | 2015-07-22 | 陈照明 | A kind of Intelligent heating circuit based on 555 timers |
| CN204557248U (en) * | 2015-04-22 | 2015-08-12 | 郑州职业技术学院 | A kind of electron temperature automaton |
| CN104834335A (en) * | 2015-04-30 | 2015-08-12 | 苏州锟恩电子科技有限公司 | Thermostatic control circuit for fowl egg hatching |
| CN204595641U (en) * | 2015-05-15 | 2015-08-26 | 富阳怀邦机械有限公司 | A kind of high-precision temperature regulating circuit |
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Application publication date: 20170111 |