CN201749383U - Temperature rising and dropping control circuit - Google Patents
Temperature rising and dropping control circuit Download PDFInfo
- Publication number
- CN201749383U CN201749383U CN2010202576516U CN201020257651U CN201749383U CN 201749383 U CN201749383 U CN 201749383U CN 2010202576516 U CN2010202576516 U CN 2010202576516U CN 201020257651 U CN201020257651 U CN 201020257651U CN 201749383 U CN201749383 U CN 201749383U
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- temperature
- temperature sensor
- transport
- resistance
- placing device
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Abstract
The utility model discloses a temperature rising and dropping control circuit, comprising temperature sensors M1 and M2, wherein the output end of the temperature sensor M1 is connected with the in-phase input end of an operational amplifier IC, and the output end of the temperature sensor M2 is connected with the opposite-phase input end of the operational amplifier IC. The output end of the operational amplifier IC is connected with a composited tube by a resistor R8, and the collector and the emitter of the composited tube are connected with power circuits of electrical equipment. The temperature sensors M1 and M2 sense the indoor and outdoor temperature difference, and the working state of the electrical equipment is adjusted according to the set temperature difference value, so that the rising and dropping of indoor temperature are realized. The natural temperature difference resource is reasonably utilized, so the resource waste is largely reduced.
Description
Technical field
The utility model relates to a kind of control circuit, especially is a kind of heating and cooling control circuit.
Background technology
Present ventilation, refrigeration plant can only come the Control work state by circuit according to the parameter of artificial setting.The control element of electrical equipment can not be analyzed indoor, outdoor actual temperature, and this temperature difference resource that exists is rationally utilized.With the blower fan is example, when Summer Morning or evening, outdoor temperature is lower than indoor temperature, open blower fan the outdoor low temperature air is introduced the indoor purpose of lowering the temperature of can realizing, and work as noon, outdoor air themperature is higher than indoor temperature, still is in opening as blower fan, indoor temperature is increased, also caused energy dissipation.
The utility model content
For overcoming above-mentioned technical matters, the utility model provide a kind of simple in structure, can be widely used in ventilating, the heating and cooling control circuit of electric refrigerator.
For realizing above-mentioned technical purpose, the utility model is achieved through the following technical solutions: a kind of heating and cooling control circuit, comprise by same model, quantity identical the temperature sensor M1 that is in series of diode, temperature sensor M2, branch road is adjusted in the rear end of temperature sensor M2 in parallel, adjust on the branch road and be in series with potentiometer R3, current-limiting resistance R2, the output terminal of temperature sensor M1 connects the in-phase input end of transport and placing device IC, the output terminal of temperature sensor M2 connects the inverting input of transport and placing device IC, transport and placing device IC output terminal connects resistance R 8, resistance R 8 other ends connect by triode T1, the complex pipe that T2 constitutes, the collector of complex pipe, emitter connecting circuit power circuit.
Above-mentioned described temperature sensor M1, M2 are in series with and adjust resistance R 1, R4, R1 ≈ R4.
The output terminal resistance in series R5 of above-mentioned described temperature sensor M2.
The utility model is compared with conventional art has following beneficial effect: by the temperature contrast of M1, M2 perception indoor and outdoor, and adjust the duty of electrical equipment according to the temperature gap of setting, realize the lifting of indoor temperature; The natural temperature differential resource is rationally utilized, reduced the waste of resource greatly.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment of the utility model.
Embodiment
Is that embodiment is described further below in conjunction with accompanying drawing to control the blower fan duty by this circuit.
A kind of heating and cooling control circuit, comprise two by same model, quantity identical diode the temperature sensor M1, the M2 that are in series, temperature sensor M1 resistance in series R1, resistance R 1 other end connects power supply, temperature sensor M1 other end ground connection; Temperature sensor M2 rear and front end is resistance in series R4, resistance R 5 respectively, resistance R 4 other ends connect power supply, resistance R 5 other end ground connection, and temperature sensor M2 rear end connects one and regulates branch road, regulate on the branch road and be in series with potentiometer R3, resistance R 2, resistance R 2 other ends connect power supply; The output terminal of temperature sensor M1 connects the in-phase input end of transport and placing device IC, the output terminal of temperature sensor M2 connects the inverting input of transport and placing device IC, the output terminal of transport and placing device IC connects triode T1 by resistance R 8, triode T1 back adopts darlington connection to connect triode T2, the collector of triode T2 connects blower fan circuit, the emitter grounding of triode T2.
Above-mentioned described resistance R 1, R4 are respectively the adjustment resistance of temperature sensor M1, temperature sensor M2, and R1 ≈ R4 guarantees to flow through 0.1 milliampere of the electric current ≈ of M1, M2.
Above-mentioned described R2 is a current-limiting resistance, and R3 is that resistance equals the potentiometer of number K to tens of K, is used to set the electric current of R5.
The resistance of above-mentioned described R5, its objective is to promoting transport and placing device IC reverse inter-input-ing voltage between tens of Europe in tens Europe.
Suppose M1, open when M2 place temperature differs T that because M1, M2 have linear negative temperature coefficient, establishing series connection diode number is N, then the every lifting of temperature is 1 ℃, and the tube voltage drop during M1, M2 work is falling-rising 2N millivolt approximately; Then, 2NT is adjusted in the voltage drop of resistance R 5 get final product by adjusting potentiometer R3.
When do heating up control: M1 is placed indoor, M2 places outdoor, and when indoor temperature 〉=outdoor temperature, transport and placing device IC inverting input voltage is greater than in-phase input end voltage, transport and placing device IC output LOW voltage, and blower fan G does not rotate; During indoor temperature＜outdoor temperature＜indoor temperature+T, transport and placing device IC reverse inter-input-ing voltage, greater than the homophase input voltage, transport and placing device IC output LOW voltage, blower fan does not rotate; During outdoor temperature＞indoor temperature+T, transport and placing device IC homophase input voltage is greater than reverse inter-input-ing voltage, transport and placing device IC output HIGH voltage, and blower fan G rotates, and the outdoor high temperature air is blown into indoor, plays the purpose of indoor intensification.
When doing cooling control: M1 is placed outdoor, M2 places indoor, and when indoor temperature≤outdoor temperature, transport and placing device IC inverting input voltage is greater than in-phase input end voltage, transport and placing device IC output LOW voltage, and blower fan G does not rotate; During outdoor temperature＜indoor temperature＜outdoor temperature+T, transport and placing device IC reverse inter-input-ing voltage is greater than the homophase input voltage, transport and placing device IC output LOW voltage, and blower fan does not rotate; During indoor temperature＞outdoor temperature+T, transport and placing device IC homophase input voltage is greater than reverse inter-input-ing voltage, transport and placing device IC output HIGH voltage, and blower fan G rotates, and outdoor Cryogenic air is blown into indoor, plays the purpose of room temperature lowering.
Claims (1)
1. heating and cooling control circuit, it is characterized in that: it comprises by same model, quantity identical the temperature sensor M1 that is in series of diode, temperature sensor M2, the rear end of temperature sensor M2 connects one and adjusts branch road, adjust on the branch road and be in series with potentiometer R3, current-limiting resistance R2, the output terminal of temperature sensor M1 connects the in-phase input end of transport and placing device IC, the output terminal of temperature sensor M2 connects the inverting input of transport and placing device IC, transport and placing device IC output terminal connects resistance R 8, resistance R 8 other ends connect complex pipe, the collector of complex pipe, emitter connecting circuit power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202576516U CN201749383U (en) | 2010-07-14 | 2010-07-14 | Temperature rising and dropping control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202576516U CN201749383U (en) | 2010-07-14 | 2010-07-14 | Temperature rising and dropping control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749383U true CN201749383U (en) | 2011-02-16 |
Family
ID=43584054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202576516U Expired - Fee Related CN201749383U (en) | 2010-07-14 | 2010-07-14 | Temperature rising and dropping control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201749383U (en) |
-
2010
- 2010-07-14 CN CN2010202576516U patent/CN201749383U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20110714 |