CN202166149U - Temperature adjuster of an air curtain machine - Google Patents
Temperature adjuster of an air curtain machine Download PDFInfo
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- CN202166149U CN202166149U CN2011202022416U CN201120202241U CN202166149U CN 202166149 U CN202166149 U CN 202166149U CN 2011202022416 U CN2011202022416 U CN 2011202022416U CN 201120202241 U CN201120202241 U CN 201120202241U CN 202166149 U CN202166149 U CN 202166149U
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Abstract
The utility model discloses a temperature adjuster of an air curtain machine, belonging to the technology of the air curtain machine. The object of the utility model is to provide a temperature adjuster special for the air curtain machine based on a single-chip microcomputer technology capable of reducing the cost of the air curtain machine and ensuring the safety of an engine room. The temperature adjuster comprises a control unit, a temperature sampling unit, an execution unit, a fan and a heater, characterized in that: the execution unit also comprises a fan driving unit and a heater driving unit; the control unit comprises a temperature signal receiving end, a fan control signal output end and a heating control signal output end; the temperature signal receiving end of the control unit is connected with the signal output end of the temperature sampling unit; the fan control signal output end of the control unit is connected with the fan driving unit and the driving signal output end of the fan driving unit is connected with the fan; the heater control signal output end of the control unit is connected with the heater driving unit and the driving signal output end of the heater driving unit is connected with the heater.
Description
Technical field
The utility model relates to air curtain, especially a kind of thermoregulator that is exclusively used in air curtain.
Background technology
The special-purpose thermoregulator of air curtain is in order to guarantee the single integrated form heater of air curtain, or a plurality of integrated form heater work system is under-50 ℃-55 ℃ high and low temperature environment, can safe and reliable operation and the special-purpose temperature controller of special exploitation, design.
For the air curtain cabin temperature inside control with time delays control function and telecommunication control function, traditional temperature controller adopts the higher PLC controller of cost more.
The utility model content
The goal of the invention of the utility model is to reduce the air curtain cost, guarantees cabin safety, provides a kind of air curtain based on singlechip technology special-purpose thermoregulator.
The technical scheme that the utility model adopts is such: comprise control module, temperature sampling unit, performance element, blower fan and heater, said performance element comprises blower fan driver element and heater-driven unit again; Said control module has temperature signal receiving terminal, blower fan control signal output and heating control signal output; The temperature signal receiving terminal of said control module is connected with the signal output part of temperature sampling unit; The blower fan control signal output of said control module is connected with the blower fan driver element, and the driving signal output part of blower fan driver element is connected with blower fan; The heater control signal output of said control module is connected with the heater-driven unit, and the driving signal output part of heater-driven unit is connected with heater.
The supplementary technology scheme of the utility model is:
Preferably, said control module is a single-chip microcomputer.
Preferably, said performance element also comprises first resistance, second resistance, first triode, second triode, fan power and heater power source;
Said blower fan driver element is first relay; Said heater-driven unit is second relay;
First universal I/O port of said single-chip microcomputer links to each other with the base stage of first triode through first resistance; The grounded emitter of first triode; The colelctor electrode of said first triode is connected with the signal input part of first relay, and first relay and blower fan, fan power form circuit loop;
Second universal I/O port of said single-chip microcomputer links to each other with the base stage of second triode through second resistance; The grounded emitter of second triode; The colelctor electrode of said second triode is connected with the signal input part of second relay, and second relay and heater, heater power source form circuit loop.
Preferably, said temperature sampling unit comprises AD sampling A, operational amplifier, reference voltage generating circuit, thermistor, adjustable resistance, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance;
The reference voltage of the generation of said reference voltage generating circuit is connected to the inverting input of operational amplifier through the 4th resistance;
One end of said the 3rd resistance is connected with an end of thermistor, thermistor other end ground connection, another termination 2.5V direct voltage source of the 3rd resistance; The 3rd resistance is connected with the input of just thinking of operational amplifier through the 5th resistance with the public connecting end of thermistor; Said adjustable resistance is parallel to the thermistor two ends;
Between the output and anti-phase input method of said the 6th resistance as feedback resistance cross-over connection and operational amplifier;
The output of operational amplifier is connected with the analog signal output of AD conversion chip;
The digital signal output end of said AD conversion chip is connected with the temperature signal receiving terminal of single-chip microcomputer.
Preferably, said reference voltage generating circuit comprises anti-phase follower, the 7th resistance and the 8th resistance; One end of said the 7th resistance is connected with an end of the 8th resistance; Another termination 2.5V direct voltage source of the 7th resistance; The other end ground connection of the 8th resistance, the 7th resistance is connected anti-phase follower output reference voltage with the common port of the 8th resistance with the normal phase input end of anti-phase follower.
Preferably, also comprise temperature information display circuit and decoder; Said temperature information display circuit is connected with the parallel delivery outlet of 8 bit data of single-chip microcomputer through decoder.
Preferably, also comprise the 9th resistance, the 3rd sensor, the 3rd relay, alarm and alarm power supply; The 3rd universal I/O port of said single-chip microcomputer links to each other with the base stage of the 3rd triode through the 9th resistance; The grounded emitter of the 3rd triode; The colelctor electrode of said the 3rd triode is connected with the signal input part of the 3rd relay, and the 3rd relay and alarm, alarm power supply form circuit loop.
Preferably, also comprise the RS485 chip, the serial ports of said single-chip microcomputer is connected with host computer through the RS485 chip.
In sum, owing to adopted technique scheme, the utility model beneficial effect is: adopt the function of PLC controller in the chip microcontroller prior art, effectively reduce product cost, and system wiring is easy, the operation is simple and easy.
Description of drawings
Fig. 1 is the utility model module frame chart.
Fig. 2 is the utility model circuit theory diagrams.
Fig. 3 is the circuit theory diagrams of temperature sampling circuit in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Like Fig. 1, the air curtain thermoregulator comprises control module, temperature sampling unit, performance element, blower fan and heater, and said performance element comprises blower fan driver element and heater-driven unit again; Said control module has temperature signal receiving terminal, blower fan control signal output and heating control signal output; The temperature signal receiving terminal of said control module is connected with the signal output part of temperature sampling unit; The blower fan control signal output of said control module is connected with the blower fan driver element, and the driving signal output part of blower fan driver element is connected with blower fan; The heater control signal output of said control module is connected with the heater-driven unit, and the driving signal output part of heater-driven unit is connected with heater.
Like Fig. 2,3, the specific embodiment of the utility model is: said control module is the 80C51 single-chip microcomputer.
Said temperature sampling unit comprises AD sampling A, operational amplifier, reference voltage generating circuit, thermistor PT100, adjustable resistance Y1, resistance R 3, resistance R 4, resistance R 5 and resistance R 6.
The reference voltage of the generation of said reference voltage generating circuit is connected to the inverting input of operational amplifier through resistance R 4.
One end of said resistance R 3 is connected with the end of thermistor PT100, thermistor PT100 other end ground connection, another termination 2.5V direct voltage source of resistance R 3; Resistance R 3 is connected with the normal phase input end of operational amplifier through resistance R 5 with the public connecting end of thermistor PT100; Said adjustable resistance Y1 is parallel to thermistor PT100 two ends.Adjustable resistance Y1 is parallelly connected with thermistor PT100, and purpose is in order to make calculating in the software design by linear process, when hardware designs, and must be with temperature and the linear variation of digital quantity that is transformed into single-chip microcomputer.For guaranteeing the linear relationship of thermistor PT100 and actual temperature; When the temperature value of the representative of thermistor PT100 and actual value have certain deviation; Can proofread and correct through regulating adjustable resistance Y1, guarantee the linear relationship that the resistance at parallelly connected two ends is directly proportional with actual temperature.
Between the output and anti-phase input method of resistance R 6 as feedback resistance cross-over connection and operational amplifier.
The output of operational amplifier is connected with the analog signal output of AD conversion chip, the temperature signal that the output of AD conversion chip is 8, and 8 signal output part DB0-DB7 of AD conversion chip are connected with the P3 mouth of 80C51 single-chip microcomputer.
An embodiment of said reference voltage generating circuit is: comprise anti-phase follower, resistance R 7 and resistance R 8; One end of said resistance R 7 is connected with an end of resistance R 8; Another termination 2.5V direct voltage source of resistance R 7; The other end ground connection of resistance R 8, resistance R 7 is connected anti-phase follower output reference voltage with the common port of resistance R 8 with the normal phase input end of anti-phase follower.
Said blower fan driver element is first relay; Said heater-driven unit is second relay.
The P2.4 pin of said single-chip microcomputer links to each other with the base stage of triode Q1 through resistance R 1; The grounded emitter of triode Q1; The colelctor electrode of said triode Q1 is connected with the signal input part of relay K 1; Relay K 1 and blower fan, fan power form circuit loop (represent the interface of relay K 1 and blower fan, fan power among the figure with J1, blower fan and fan power do not draw among the figure).During P2.4 pin output high level, triode Q1 is in magnifying state, when relay K 1 has enough current drives, and relay K 1 closure, blower fan and fan power form closed-loop path, blower fan work.
The P2.3 pin of said single-chip microcomputer links to each other with the base stage of triode Q2 through resistance R 2; The grounded emitter of triode Q2; The colelctor electrode of said triode Q2 is connected with the signal input part of relay K 2; Relay K 2 and heater, heater power source form circuit loop (represent the interface of relay K 2 and heater, heater power source among the figure with J2, heater and heater power source do not draw among the figure).During P2.3 pin output high level, triode Q2 is in magnifying state, when relay K 2 has enough current drives, and relay K 2 closures, heater and heater power source form closed-loop path, heater work.
The utility model can also comprise the temperature information display circuit, is used for single-chip microcomputer the temperature signal of receiving is shown to the user; Said temperature information display circuit realizes that with charactron the parallel delivery outlet P0 mouth of 8 bit data of single-chip microcomputer is connected with charactron through decoder 74HC573.
In addition; The utility model can also comprise with alarm; The P2.5 pin of single-chip microcomputer links to each other with the base stage of triode Q3 through resistance R 9, the grounded emitter of triode Q3, and the colelctor electrode of said triode Q3 is connected with the signal input part of relay K 3; Relay K 3 and alarm, alarm power supply form circuit loop (represent the interface of relay K 3 and alarm, alarm power supply among the figure with J3, alarm and alarm power supply do not draw among the figure).During P2.5 pin output high level, triode Q3 is in magnifying state, when relay K 3 has enough current drives, and relay K 3 closures, alarm and alarm power supply power supply form closed-loop path, alarm work.
For the temperature signal that single-chip microcomputer is received reaches host computer, realize the Centralized Monitoring of host computer to temperature data, the serial ports of single-chip microcomputer also is connected with host computer through the RS485 chip.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. an air curtain thermoregulator comprises control module, temperature sampling unit, performance element, blower fan and heater, it is characterized in that, said performance element comprises blower fan driver element and heater-driven unit again; Said control module has temperature signal receiving terminal, blower fan control signal output and heating control signal output; The temperature signal receiving terminal of said control module is connected with the signal output part of temperature sampling unit; The blower fan control signal output of said control module is connected with the blower fan driver element, and the driving signal output part of blower fan driver element is connected with blower fan; The heater control signal output of said control module is connected with the heater-driven unit, and the driving signal output part of heater-driven unit is connected with heater.
2. a kind of air curtain thermoregulator according to claim 1 is characterized in that said control module is a single-chip microcomputer.
3. a kind of air curtain thermoregulator according to claim 2 is characterized in that said performance element also comprises first resistance, second resistance, first triode, second triode, fan power and heater power source;
Said blower fan driver element is first relay; Said heater-driven unit is second relay;
First universal I/O port of said single-chip microcomputer links to each other with the base stage of first triode through first resistance; The grounded emitter of first triode; The colelctor electrode of said first triode is connected with the signal input part of first relay, and first relay and blower fan, fan power form circuit loop;
Second universal I/O port of said single-chip microcomputer links to each other with the base stage of second triode through second resistance; The grounded emitter of second triode; The colelctor electrode of said second triode is connected with the signal input part of second relay, and second relay and heater, heater power source form circuit loop.
4. a kind of air curtain thermoregulator according to claim 3; It is characterized in that said temperature sampling unit comprises AD sampling A, operational amplifier, reference voltage generating circuit, thermistor, adjustable resistance, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance;
The reference voltage of the generation of said reference voltage generating circuit is connected to the inverting input of operational amplifier through the 4th resistance;
One end of said the 3rd resistance is connected with an end of thermistor, thermistor other end ground connection, another termination 2.5V direct voltage source of the 3rd resistance; The 3rd resistance is connected with the input of just thinking of operational amplifier through the 5th resistance with the public connecting end of thermistor; Said adjustable resistance is parallel to the thermistor two ends;
Between the output and anti-phase input method of said the 6th resistance as feedback resistance cross-over connection and operational amplifier;
The output of operational amplifier is connected with the analog signal output of AD conversion chip;
The digital signal output end of said AD conversion chip is connected with the temperature signal receiving terminal of single-chip microcomputer.
5. a kind of air curtain thermoregulator according to claim 4 is characterized in that said reference voltage generating circuit comprises anti-phase follower, the 7th resistance and the 8th resistance; One end of said the 7th resistance is connected with an end of the 8th resistance; Another termination 2.5V direct voltage source of the 7th resistance; The other end ground connection of the 8th resistance, the 7th resistance is connected anti-phase follower output reference voltage with the common port of the 8th resistance with the normal phase input end of anti-phase follower.
6. a kind of air curtain thermoregulator according to claim 2 is characterized in that, also comprises temperature information display circuit and decoder; Said temperature information display circuit is connected with the parallel delivery outlet of 8 bit data of single-chip microcomputer through decoder.
7. a kind of air curtain thermoregulator according to claim 2 is characterized in that, also comprises the 9th resistance, the 3rd sensor, the 3rd relay, alarm and alarm power supply; The 3rd universal I/O port of said single-chip microcomputer links to each other with the base stage of the 3rd triode through the 9th resistance; The grounded emitter of the 3rd triode; The colelctor electrode of said the 3rd triode is connected with the signal input part of the 3rd relay, and the 3rd relay and alarm, alarm power supply form circuit loop.
8. according to any described a kind of air curtain thermoregulator in the claim 1 to 7, it is characterized in that, also comprise the RS485 chip, the serial ports of said single-chip microcomputer is connected with host computer through the RS485 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202022416U CN202166149U (en) | 2011-06-16 | 2011-06-16 | Temperature adjuster of an air curtain machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202022416U CN202166149U (en) | 2011-06-16 | 2011-06-16 | Temperature adjuster of an air curtain machine |
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| Publication Number | Publication Date |
|---|---|
| CN202166149U true CN202166149U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202022416U Expired - Fee Related CN202166149U (en) | 2011-06-16 | 2011-06-16 | Temperature adjuster of an air curtain machine |
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| Country | Link |
|---|---|
| CN (1) | CN202166149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940840A (en) * | 2017-11-29 | 2018-04-20 | 泛仕达机电股份有限公司 | A kind of antifreeze heater circuit of wind turbine and control method |
| CN108954649A (en) * | 2018-07-27 | 2018-12-07 | 陈继珍 | A kind of intelligent type energy saving environmental protection air curtain |
-
2011
- 2011-06-16 CN CN2011202022416U patent/CN202166149U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940840A (en) * | 2017-11-29 | 2018-04-20 | 泛仕达机电股份有限公司 | A kind of antifreeze heater circuit of wind turbine and control method |
| CN108954649A (en) * | 2018-07-27 | 2018-12-07 | 陈继珍 | A kind of intelligent type energy saving environmental protection air curtain |
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Legal Events
| 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 |
Granted publication date: 20120314 Termination date: 20150616 |
|
| EXPY | Termination of patent right or utility model |