CN108170182A - A kind of dual control thermosistor with upper and lower limit function - Google Patents
A kind of dual control thermosistor with upper and lower limit function Download PDFInfo
- Publication number
- CN108170182A CN108170182A CN201711439438.XA CN201711439438A CN108170182A CN 108170182 A CN108170182 A CN 108170182A CN 201711439438 A CN201711439438 A CN 201711439438A CN 108170182 A CN108170182 A CN 108170182A
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- resistance
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- triode
- diode
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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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of dual control thermosistors with upper and lower limit function, circuit, lighting control circuit and ON-OFF control circuit are adjusted including power module, temperature detection, it is characterized in that, the power module connects temperature detection and adjusts circuit, lighting control circuit and ON-OFF control circuit respectively, and temperature detection adjusts circuit and is also respectively connected with lighting control circuit and ON-OFF control circuit.Multifunctional temperature control switching circuit of the present invention uses the dual power supply mode that alternating current and accumulator are combined, the loss that the stoppage in transit of device generates when such design can prevent from encountering alternating current power-off, its control section is using temperature control intelligent chip as core element, the control of limit switch up and down to load is realized with reference to triode and light emitting diode, temperature indicator is additionally provided with, therefore have the advantages that degree of intelligence is high, easy to use and vdiverse in function simultaneously.
Description
Technical field
The present invention relates to a kind of temperature detect switch (TDS), specifically a kind of dual control thermosistor with upper and lower limit function.
Background technology
Temperature detect switch (TDS) is temperature regulating device common in daily life, also occupies extremely important status in the industrial production,
Traditional temperature detect switch (TDS) uses thermistor to combine common resistance composition bridge for measuring temperature as temperature control element more, thermistor
Precision is relatively low, and the thermometer precision produced is low, high place is required not apply to, and existing temperature temperature accuracy at some
Control circuit is mostly complicated, integrated level is low, and function is more single.
Invention content
The purpose of the present invention is to provide a kind of dual control thermosistor with upper and lower limit function, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical solution：
A kind of dual control thermosistor with upper and lower limit function adjusts circuit, signal light control electricity including power module, temperature detection
Road and ON-OFF control circuit, which is characterized in that the power module connects temperature detection and adjusts circuit, lighting control circuit respectively
And ON-OFF control circuit, temperature detection adjust circuit and are also respectively connected with lighting control circuit and ON-OFF control circuit.
Preferred embodiment as the present invention：The power module includes resistance R5, voltage stabilizing chip IC2, rectifier bridge T and filtering
One end connection capacitance C1 and 220V alternating current of capacitance C2, the resistance R5, the other end connection capacitance C1's of resistance R5 is another
End and the port 1 of rectifier bridge T, the port 2 of rectifier bridge T connect the voltage input end IN and capacitance C2 of voltage stabilizing chip IC2, capacitance C2
The anode of other end connection diode D3, the cathode of accumulator E, the ground terminal of voltage stabilizing chip IC2, rectifier bridge T 4 and of port
Negative pole of output end, the cathode of output terminal OUT connection diodes D1, the anode of accumulator E and the output of voltage stabilizing chip IC2 are rectified
Pole.
Preferred embodiment as the present invention：The temperature detection adjusts circuit and includes chip IC 1, potentiometer RP1 and current potential
The sliding end of the fixing end connection potentiometer RP1 of device RP2, the potentiometer RP1, fixing end, an electricity of potentiometer RP2
Sliding end, the pin 8 of chip IC 1 and the output head anode of power module of position device RP2, the pin 2 of chip IC 1 connect potentiometer
Another fixing end of RP1, the pin 3 of chip IC 1 connect another fixing end of potentiometer RP2, and the pin 4 of chip IC 1 connects
Connect the negative pole of output end of power module.
Preferred embodiment as the present invention：The lighting control circuit include diode D1, triode V1, diode D2 and
The anode of anode connection diode D2 of triode V2, diode D1 and the output head anode of power module, the moon of diode D1
Pole connects resistance R1, the collector of the other end connecting triode V1 of resistance R1, the base stage connection resistance R2 of triode V1, resistance
The pin 7 of the other end connection chip IC 1 of R2, the emitter of the emitter connecting triode V2 of triode V1 and power module
Negative pole of output end, the pin 6 of chip IC 1 connect resistance R3, the base stage of the other end connecting triode V2 of resistance R3, triode V2
Collector connection resistance R4, resistance R4 other end connection diode D2 cathode.
Preferred embodiment as the present invention：The ON-OFF control circuit include triode V3 and resistance R5, the one of resistance R5
The pin 5 of end connection chip IC 1, the base stage of the other end connecting triode V3 of resistance R5, the emitter connection electricity of triode V3
The other end of heat pipe A, the output head anode of the collector connection power module of triode V1, the other end connection electricity of electrothermal tube A
The negative pole of output end of source module.
Preferred embodiment as the present invention：The model TC620 of the chip IC 1.
Preferred embodiment as the present invention：The diode D1 and diode D2 is light emitting diode.
Preferred embodiment as the present invention：The model LM7805 of the chip IC 2.
Compared with prior art, the beneficial effects of the invention are as follows：Multifunctional temperature control switching circuit of the present invention using alternating current and
The dual power supply mode that accumulator is combined, the stoppage in transit generation of device when such design can prevent from encountering alternating current power-off
Loss, control section, as core element, are realized using temperature control intelligent chip with reference to triode and light emitting diode
The limit switch up and down of load is controlled, while is additionally provided with temperature indicator, therefore with degree of intelligence is high, easy to use and work(
Can be various the advantages of.
Description of the drawings
Fig. 1 is the circuit diagram of the dual control thermosistor with upper and lower limit function.
Fig. 2 is the circuit diagram of power module.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, a kind of dual control thermosistor with upper and lower limit function, including power module, temperature detection tune
Economize on electricity road, lighting control circuit and ON-OFF control circuit, and the power module includes resistance R5, voltage stabilizing chip IC2, rectifier bridge T
With filter capacitor C2, the temperature detection adjusts circuit and includes chip IC 1, potentiometer RP1 and potentiometer RP2, the light control
Circuit processed includes diode D1, triode V1, diode D2 and triode V2, and ON-OFF control circuit includes triode V3 and resistance
One end connection capacitance C1 and 220V alternating current of R5, the resistance R5, the other end of the other end connection capacitance C1 of resistance R5 and
The port 1 of rectifier bridge T, the port 2 of rectifier bridge T connect the voltage input end IN and capacitance C2 of voltage stabilizing chip IC2, and capacitance C2's is another
Anode, the cathode of accumulator E, the ground terminal of voltage stabilizing chip IC2, the port 4 of rectifier bridge T and the output of one end connection diode D3
Hold cathode, the cathode of the output terminal OUT connection diodes D1 of voltage stabilizing chip IC2, the anode and output head anode of accumulator E, institute
State sliding end, a fixing end of potentiometer RP2, the potentiometer RP2 of the fixing end connection potentiometer RP1 of potentiometer RP1
Sliding end, the pin 8 of chip IC 1 and the output head anode of power module, the pin 2 of chip IC 1 connects the another of potentiometer RP1
One fixing end, the pin 3 of chip IC 1 connect another fixing end of potentiometer RP2, and the pin 4 of chip IC 1 connects power supply mould
The negative pole of output end of block.The anode of anode connection diode D2 of diode D1 and the output head anode of power module, diode
The cathode connection resistance R1 of D1, the collector of the other end connecting triode V1 of resistance R1, the base stage connection resistance of triode V1
The pin 7 of the other end connection chip IC 1 of R2, resistance R2, the emitter and electricity of the emitter connecting triode V2 of triode V1
The negative pole of output end of source module, the connection resistance R3 of pin 6 of chip IC 1, the base stage of the other end connecting triode V2 of resistance R3,
The cathode of the other end connection diode D2 of collector connection the resistance R4, resistance R4 of triode V2.One end connection of resistance R5
The pin 5 of chip IC 1, the base stage of the other end connecting triode V3 of resistance R5, the emitter connection electrothermal tube A's of triode V3
The other end, the output head anode of the collector connection power module of triode V1, the other end connection power module of electrothermal tube A
Negative pole of output end.
The present invention operation principle be：The circuit given in Fig. 1 is powered by power module, and entire lighting lamp circuit passes through UPS
Power supply is powered, and ups power physical circuit is as shown in Fig. 2, it includes the capacitance-resistance voltage reduction circuit of resistance R5 and capacitance C1 compositions, bridge type
Rectification circuit T, voltage stabilizing chip IC2, filter capacitor C2, zener diode D3 and standby battery E, power circuit is by the city of 220V
Piezoelectric voltage is converted into 24V direct current electricity outputs, and also has the function of dual power supply.
Core element in Fig. 1 circuits is TC620 type temperature control chips, can be with by potentiometer RP1 and potentiometer RP2
The upper limit value T1 of environment temperature and lower limiting value T2 is set respectively, when environment temperature is higher than T2 and is less than T1,5 feet of chip IC 1
Export high level with 7 feet, so as to control the conducting of triode V3, and with the variation of temperature, 5 foot voltages of chip IC 1 with
Variation, meanwhile, the variation of the angle of flow of triode V3, after triode V3 conductings, electrothermal tube A obtains electric start-up operation, while three poles
Pipe V1 is connected, and light emitting diode D1 is lighted, and is indicated as temperature range, when temperature is higher than upper limit value T1, the 5 of chip IC 1
Foot exports low level, and 6 feet export high level, and electrothermal tube A does not work at this time, and light emitting diode D2 is lighted, and then realizes temperature
Degree is controlled always between T1 and T2, reaches double position-limiting actions.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of dual control thermosistor with upper and lower limit function adjusts circuit, signal light control including power module, temperature detection
Circuit and ON-OFF control circuit, which is characterized in that the power module connects temperature detection and adjusts circuit, signal light control electricity respectively
Road and ON-OFF control circuit, temperature detection adjust circuit and are also respectively connected with lighting control circuit and ON-OFF control circuit.
A kind of 2. dual control thermosistor with upper and lower limit function according to claim 1, which is characterized in that the power supply
Module include resistance R5, voltage stabilizing chip IC2, rectifier bridge T and filter capacitor C2, the resistance R5 one end connection capacitance C1 and
220V alternating currents, the other end of other end connection capacitance C1 of resistance R5 and the port 1 of rectifier bridge T, the port 2 of rectifier bridge T connects
Meet the voltage input end IN of voltage stabilizing chip IC2 and capacitance C2, anode, the accumulator E of the other end connection diode D3 of capacitance C2
Cathode, the ground terminal of voltage stabilizing chip IC2, the port 4 of rectifier bridge T and negative pole of output end, the output terminal OUT of voltage stabilizing chip IC2
Connect the cathode of diode D1, the anode and output head anode of accumulator E.
A kind of 3. dual control thermosistor with upper and lower limit function according to claim 1, which is characterized in that the temperature
Detection adjusts the fixing end connection electricity that circuit includes chip IC 1, potentiometer RP1 and potentiometer RP2, the potentiometer RP1
The sliding end of position device RP1, a fixing end of potentiometer RP2, the sliding end of potentiometer RP2, chip IC 1 pin 8 and power supply
The output head anode of module, the pin 2 of chip IC 1 connect another fixing end of potentiometer RP1, and the pin 3 of chip IC 1 connects
Another fixing end of potentiometer RP2, the pin 4 of chip IC 1 connect the negative pole of output end of power module.
A kind of 4. dual control thermosistor with upper and lower limit function according to claim 1, which is characterized in that the light
Control circuit includes diode D1, triode V1, diode D2 and triode V2, the anode connection diode D2's of diode D1
The output head anode of anode and power module, the cathode connection resistance R1 of diode D1, the other end connecting triode of resistance R1
The collector of V1, the pin 7 of the other end connection chip IC 1 of base stage connection the resistance R2, resistance R2 of triode V1, triode V1
The emitter of emitter connecting triode V2 and the negative pole of output end of power module, the pin 6 of chip IC 1 connect resistance R3,
The base stage of the other end connecting triode V2 of resistance R3, the other end of collector connection the resistance R4, resistance R4 of triode V2 connect
Connect the cathode of diode D2.
A kind of 5. dual control thermosistor with upper and lower limit function according to claim 1, which is characterized in that the switch
Control circuit includes triode V3 and resistance R5, the pin 5 of one end connection chip IC 1 of resistance R5, and the other end of resistance R5 connects
Connect the base stage of triode V3, the other end of the emitter connection electrothermal tube A of triode V3, the collector connection power supply of triode V1
The output head anode of module, the negative pole of output end of the other end connection power module of electrothermal tube A.
6. according to a kind of any dual control thermosistors with upper and lower limit function of claim 3-5, which is characterized in that institute
State the model TC620 of chip IC 1.
A kind of 7. dual control thermosistor with upper and lower limit function according to claim 4, which is characterized in that two pole
Pipe D1 and diode D2 is light emitting diode.
A kind of 8. dual control thermosistor with upper and lower limit function according to claim 2, which is characterized in that the chip
The model LM7805 of IC2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439438.XA CN108170182A (en) | 2017-12-27 | 2017-12-27 | A kind of dual control thermosistor with upper and lower limit function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439438.XA CN108170182A (en) | 2017-12-27 | 2017-12-27 | A kind of dual control thermosistor with upper and lower limit function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108170182A true CN108170182A (en) | 2018-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439438.XA Pending CN108170182A (en) | 2017-12-27 | 2017-12-27 | A kind of dual control thermosistor with upper and lower limit function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559526A (en) * | 2019-09-12 | 2019-12-13 | 阳权 | Control circuit of medical nutrient solution heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201270005Y (en) * | 2008-09-08 | 2009-07-08 | 北京联合大学 | Constant temperature controller for greenhouse |
| CN205092841U (en) * | 2015-10-13 | 2016-03-16 | 沈阳工学院 | Simple and practical's contactless temperature detect switch |
| CN106444900A (en) * | 2016-12-01 | 2017-02-22 | 重庆依凯科技有限公司 | Upper temperature limit and lower temperature limit control circuit applied to temperature control circuit |
| CN106647870A (en) * | 2016-12-01 | 2017-05-10 | 重庆依凯科技有限公司 | Temperature upper and lower limit control circuit designed based on adjustable voltage-stabilizing rectification technology |
| CN207924538U (en) * | 2017-12-27 | 2018-09-28 | 河南省豫煤矿机有限公司 | A kind of dual control thermosistor with upper and lower limit function |
-
2017
- 2017-12-27 CN CN201711439438.XA patent/CN108170182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201270005Y (en) * | 2008-09-08 | 2009-07-08 | 北京联合大学 | Constant temperature controller for greenhouse |
| CN205092841U (en) * | 2015-10-13 | 2016-03-16 | 沈阳工学院 | Simple and practical's contactless temperature detect switch |
| CN106444900A (en) * | 2016-12-01 | 2017-02-22 | 重庆依凯科技有限公司 | Upper temperature limit and lower temperature limit control circuit applied to temperature control circuit |
| CN106647870A (en) * | 2016-12-01 | 2017-05-10 | 重庆依凯科技有限公司 | Temperature upper and lower limit control circuit designed based on adjustable voltage-stabilizing rectification technology |
| CN207924538U (en) * | 2017-12-27 | 2018-09-28 | 河南省豫煤矿机有限公司 | A kind of dual control thermosistor with upper and lower limit function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110559526A (en) * | 2019-09-12 | 2019-12-13 | 阳权 | Control circuit of medical nutrient solution heater |
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Application publication date: 20180615 |