CN2139751Y - Automatic controller for electric fan - Google Patents
Automatic controller for electric fan Download PDFInfo
- Publication number
- CN2139751Y CN2139751Y CN 92226731 CN92226731U CN2139751Y CN 2139751 Y CN2139751 Y CN 2139751Y CN 92226731 CN92226731 CN 92226731 CN 92226731 U CN92226731 U CN 92226731U CN 2139751 Y CN2139751 Y CN 2139751Y
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Abstract
The utility model relates to a controller enabling the electric fan to adjust the speed or be automatically turned on or turned off with the change of the environment temperature. The connected 220V electric source is arranged on time-base integrated circuit after rectification, filtering and voltage stabilization. The circuit connected with a potentiometer in series can control the lowest opening temperature value and a timing circuit controls the input end of the integrated circuit. The integrated circuit generates a simulation signal changing with the temperature to trigger the controlled silicon by current limitation to form the alternating current voltage changing with the simulation signal in order to adjust the wind speed and simulate the natural wind.
Description
The utility model relates to the electric fan temperature control equipment.
Temperature control electric fan of the prior art can only be opened or turn-off by adjusting temperature, can not realize temperature regulate speed.
The purpose of this utility model provides and a kind ofly electric fan cut-off automatically and the controller of automatic speed regulation with variation of ambient temperature, and can produce the natural wind simulating effect.
The purpose of this utility model realizes by following measure, the A of 220V power supply connection circuit, A ' end, from A end lead-in wire shunt capacitance C1 and resistance R 1 and step-down, the anode of another terminating diode D2 after its parallel connection, the negative electrode of diode D2 connects the pin 8 of time-base circuit IC1, the anode tap of diode D2 connects A ' end after meeting diode D1, negative electrode from diode D2 draws three branch roads, meet diode D3, capacitor C 2 respectively and by the series circuit of resistance R 2, R3 and potentiometer W, the resistance that changes W can be adjusted minimum unlatching temperature value.The other end of above-mentioned each branch road all connects A ' end, behind A ' end lead-in wire series capacitance C3, resistance R 5 and diode D4, connect the pin 7 of time-base integrated circuit IC1, the input of the timing circuit control integrated circuit IC1 that forms by resistance R 4, R5, capacitor C 3 and diode D4, thereby its output then produces temperature variant analog signal, after resistance R 6 current limlitings, go to trigger controllable silicon SCR.At BB ' termination load electric fan, realize adjusting wind speed.Lead-in wire connecting resistance R4 between the D of the line place point of the C of the line place point of self-resistance R2 and resistance R 3 and resistance R 5 and capacitor C 3, the D of line place point lead-in wire connects the pin two and 6 of time-base integrated circuit, the pin one of integrated circuit (IC) 1 connects the lead-in wire of A ' end, connect the control utmost point of controllable silicon SCR behind its pin 3 series resistance R6, the negative electrode of controllable silicon SCR and anode connect and B ' point respectively at A ', and wiring point A point lead-in wire connects the B point.
Time-base integrated circuit IC1 is the NE555 time-base circuit, and described controllable silicon SCR is the TLC336 thyristor.
Narrate below in conjunction with drawings and Examples.
Fig. 1 is the circuit connection diagram of this controller.
With reference to accompanying drawing is an embodiment of the present utility model, and its structure as mentioned above.The principle that its control is cut-off is: when ambient temperature was lower than 27 ℃, resistance R 2 resistances diminished, and resistance R 3 resistances increase, the C point voltage raises, by resistance R 4 to D points, voltage increases, when D point current potential high power supply voltage 1/3, the pin two of control integrated circuit IC1, make its pin 3 be electronegative potential, to the controllable silicon SCR control utmost point, controllable silicon SCR is ended through resistance R 6, and power cutoff, when ambient temperature was higher than 27 ℃, resistance R 2 resistances increased, and it is big that resistance R 3 resistances become, the C point voltage reduces, through resistance R 4 to D points, voltage decreases, when the D point voltage is lower than supply voltage 2/3, the pin 6 of control integrated circuit IC1, its pin 3 is a high potential, to the controllable silicon SCR control utmost point, makes the controllable silicon SCR conducting through resistance R 6, and power-on, reach the Push And Release purpose of electric fan.
The principle of its control rate is: when ambient temperature is low, the C point is a high potential, give capacitor C 3 charging and very fast abundances through resistance R 4, when the C3 both end voltage was higher than 1/3 supply voltage, the pin 3 of integrated circuit (IC) 1 was an electronegative potential, and controllable silicon SCR is ended, fan power turn-offs, this moment, pin 7 be an electronegative potential, and the D point voltage gives capacitor C 3 chargings simultaneously, discharged through resistance R 5, diode D4 to the pin 7 of integrated circuit (IC) 1 in addition.When ambient temperature raises gradually, the C point voltage also raises with temperature and reduces gradually, also decrease through R4 to D point voltage, when capacitor C 3 voltages when resistance R 5, diode D4 are lower than 2/3 supply voltage to pin 7 discharges of integrated circuit (IC) 1, the IC3 pin is a high potential, and trigger the controllable silicon SCR conducting, open fan power.Ambient temperature is high more, and 3 charging intervals of capacitor C are also long more, and the 3 high potential times of pin of integrated circuit (IC) 1 are also long more, and the controllable silicon SCR ON time is prolonged, and adjusts wind speed and forms the natural wind simulating effect thereby reach.
Claims (2)
1, a kind of controller that can make electric fan cut-off and adjust automatically rotating speed automatically with variation of ambient temperature, the A that it is characterized in that 220V power supply connection circuit, A ' end, from A end lead-in wire shunt capacitance C1 and resistance R 1 and step-down, the anode of another terminating diode D2 after its parallel connection, the negative electrode of diode D2 connects the pin 8 of time-base circuit IC1, the anode tap of diode D2 connects A ' end after meeting diode D1, negative electrode from diode D2 draws three branch roads, meet diode D3 respectively, capacitor C 2 reaches by resistance R 2, the series circuit of R3 and potentiometer W, the other end of above-mentioned each branch road all connects A ' end, from A ' end lead-in wire series capacitance C3, connect the pin 7 of time-base integrated circuit IC1 behind resistance R 5 and the diode D4, lead-in wire connecting resistance R4 between the D of the line place point of the C of the line place point of self-resistance R2 and resistance R 3 and resistance R 5 and capacitor C 3, the D of line place point lead-in wire connects the pin two and 6 of time-base integrated circuit, the pin one of integrated circuit (IC) 1 connects the lead-in wire of A ' end, connect the control utmost point of controllable silicon SCR behind its pin 3 series resistance R6, the negative electrode of controllable silicon SCR and anode connect and B ' point respectively at A ', and wiring point A point lead-in wire connects the B point.
2, controller according to claim 1 is characterized in that above-mentioned time-base integrated circuit IC1 is the NE555 time-base circuit, and described controllable silicon SCR is the TLC336 thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92226731 CN2139751Y (en) | 1992-07-02 | 1992-07-02 | Automatic controller for electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92226731 CN2139751Y (en) | 1992-07-02 | 1992-07-02 | Automatic controller for electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2139751Y true CN2139751Y (en) | 1993-08-04 |
Family
ID=33770920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92226731 Expired - Fee Related CN2139751Y (en) | 1992-07-02 | 1992-07-02 | Automatic controller for electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2139751Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278723A (en) * | 2011-04-29 | 2011-12-14 | 郭修 | LED power supply device |
-
1992
- 1992-07-02 CN CN 92226731 patent/CN2139751Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278723A (en) * | 2011-04-29 | 2011-12-14 | 郭修 | LED power supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |