CN203130570U - High-power exhaust fan time-base circuit intermittent control device - Google Patents
High-power exhaust fan time-base circuit intermittent control device Download PDFInfo
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- CN203130570U CN203130570U CN 201320053300 CN201320053300U CN203130570U CN 203130570 U CN203130570 U CN 203130570U CN 201320053300 CN201320053300 CN 201320053300 CN 201320053300 U CN201320053300 U CN 201320053300U CN 203130570 U CN203130570 U CN 203130570U
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Abstract
The utility model discloses a high-power exhaust fan time-base circuit intermittent control device which comprises a 220V alternating current power supply, an alternating current step-down circuit and a full-bridge rectifying circuit, 12V direct current voltage-stabilization and filter circuit, a square-wave generating circuit and a duty ratio adjusting circuit, a photosensitive two-way switch drive circuit and a high-power exhaust fan control circuit. The high-power exhaust fan time-base circuit intermittent control device is characterized in that a time-base circuit IC1 in the square-wave generating circuit and the duty ratio adjusting circuit is NE555, and a photoelectric coupler G1 in the photosensitive two-way switch drive circuit is MOC3061. In some occasions, an exhaust fan is needed for intermittent operation and also needed for long-term operation without burnout. Time-base circuits are connected to form the square-wave generating circuit, high level output by the square-wave generating circuit is used for controlling breakover and cut-off of a two-way switch in the photoelectric coupler, and therefore the high-power exhaust fan can operate continuously. Operation and stop time of the exhaust fan can be changed through square wave output width adjustment.
Description
Technical field
The utility model belongs to the electron controls technology field, relates to intermittently control gear of a kind of high-power ventilating fan time base circuit.
Background technique
Common ventilating fan generally has only speed-regulating function, and common ventilating fan will keep the commentaries on classics of not stopping transport of constant rotating speed in case select to determine speed always.In actual use, some occasion needs the intermittently discontinuity running of high-power ventilating fan, as: use high-power ventilating fan aeration-cooling in summer in the factory floor, air-dry some article, need the ventilating fan can natural wind simulating especially, need the high-power ventilating fan can intermittent running first, second can allow high-power ventilating fan long-term operation and can not burnt out.The utility model utilizes time base circuit to be connected into square wave generation circuit, utilize the high level of square wave generation circuit output controlling the middle two-way switch conducting of photo coupler (MOC3061) and ending, thereby make intermittently intermittent working of high-power ventilating fan, reach the effect of natural wind simulating.By regulating the width of square wave output, can change ventilating fan running and the time that shuts down.
The high-power ventilating fan time base circuit intermittently circuit of control gear all uses common components and parts to make, and fabricating cost only needs tens yuan, is well suited for developing multi-functional ventilating fan in batches for factory.
Below describe intermittently control gear related relevant technologies content in implementation process of high-power ventilating fan time base circuit described in the utility model in detail.
The model utility content
Goal of the invention and beneficial effect: common ventilating fan generally has only speed-regulating function, and common ventilating fan will keep the commentaries on classics of not stopping transport of constant rotating speed in case select to determine speed always.In actual use, some occasion needs intermittently running by phased manner of ventilating fan, as: use the ventilating fan cooling in summer, air-dry some article or be used for room ventilation, need the ventilating fan can natural wind simulating especially, need the ventilating fan can intermittent running first, second can allow the ventilating fan long-term operation and can not burnt out.The utility model utilizes time base circuit to be connected into square wave generation circuit, utilize the high level of square wave generation circuit output controlling the middle two-way switch conducting of photo coupler (MOC3061) and ending, thereby make intermittently intermittent working of ventilating fan, reach the effect of natural wind simulating.By regulating the width of square wave output, can change ventilating fan running and the time that shuts down.
The circuit working principle: time base circuit (NE555) is connected into the square wave generation circuit of EDM Generator of Adjustable Duty Ratio in the high-power ventilating fan time base circuit control gear circuit at intermittence.Between the 3rd pin output high period of time base circuit (NE555), (photo coupler (MOC3061) is to be a kind of of media transmission electrical signal---light---power conversion device with light to zero passage break-make type photo coupler, and it is made up of light emitting source and light receiver two-part.Light emitting source and light receiver are assembled in the same closed shell, isolate with transparent insulator to each other.The pin of light emitting source is input end, and the pin of light receiver is output terminal, and light emitting source commonly used is light emitting diode, and light receiver is photodiode).After light emitting source end in the photo coupler obtains the above forward current of 10mA, can make inner infrared light emitting diode emission infrared light, the high-power ventilating fan entry into service of 220V ac power supply is connected in conducting when photosensitive two-way switch makes 220V Ac zero passage in the zero passage break-make type photo coupler.During the 3rd pin output low level of time base circuit (NE555), the two-way switch in the photo coupler is turned off, and high-power ventilating fan shuts down.
Photo coupler (MOC3061) itself has certain power drive ability, generally need not add the power drive element, and its inner two-way switch can directly be controlled the running of ventilating fan motor.But when the more high-power ventilating fan of control, must use the power expansion circuit shown in the accompanying drawing 1.When device is made, can select components and parts according to the technical parameter that embodiment gives.
Potentiometer RP be used for to regulate dutycycle, and the data of giving can allow ventilating fan running time be 60 seconds in embodiment's circuit, and ventilating fan shut down 60 seconds.The value of change capacitor C 3 or the value of potentiometer RP can change the operation cycle of square wave generation circuit.
Technological scheme: high-power ventilating fan time base circuit is control gear intermittently, it comprises 220V ac power supply, Ac reduction voltage circuit and full bridge rectifier, 12V DC voltage-stabilizing and eliminator, square wave generation circuit and duty cycle adjustment circuit, photosensitive two-way switch drive circuit and high-power ventilating fan control circuit, it is characterized in that:
Ac reduction voltage circuit and full bridge rectifier: it is made up of capacitor C 1, resistance R 1 and full-bridge rectification element QZ, one termination 220V ac power supply live wire end L of one end of capacitor C 1 and resistance R 1, one end of another termination full-bridge rectification element QZ input end of the other end of capacitor C 1 and resistance R 1, another termination 220V ac power supply zero line side N of full-bridge rectification element QZ input end, the just very circuit anode VCC of full-bridge rectification element QZ output terminal, the negative pole connection circuit ground GND of full-bridge rectification element QZ output terminal;
12V DC voltage-stabilizing and eliminator: it is made up of reference diode DW, electrochemical capacitor C2, the anodal VCC of the anodal connection circuit of the negative pole of reference diode DW and electrochemical capacitor C2, the negative pole connection circuit ground GND of the positive pole of reference diode DW and electrochemical capacitor C2;
Square wave generation circuit and duty cycle adjustment circuit: it is by time base circuit IC1, resistance R 3, resistance R 4, capacitor C 3, potentiometer RP and switching diode D1～D2 forms, the model that time base circuit IC1 selects for use is NE555, the anodal VCC of the 4th pin of time base circuit IC1 and the 8th pin connection circuit, the 7th pin of time base circuit IC1 connects an end and an end of resistance R 4 and the negative pole of switching diode D1 of potentiometer RP by resistance R 3, the anodal VCC of the other end connection circuit of resistance R 4, the positive pole of the activity termination switching diode D1 of potentiometer RP and the positive pole of switching diode D2, the negative pole of switching diode D2 connects the 6th pin of time base circuit IC1 and an end of the 2nd pin and capacitor C 3, the 1st pin connection circuit ground GND of the other end of capacitor C 3 and time base circuit IC1, the 3rd pin of time base circuit IC1 connects photosensitive two-way switch drive circuit;
Photosensitive two-way switch drive circuit: it is by time base circuit IC1, resistance R 2, photo coupler G1 and form, the model that photo coupler G1 selects for use is MOC3061, the 3rd pin of time base circuit IC1 connects the 1st pin of photo coupler G1, the 2nd pin connection circuit ground GND of photo coupler G1 by resistance R 2;
High-power ventilating fan control circuit: it is made up of photo coupler G1, bidirectional triode thyristor SCR, resistance R 5, resistance R 6 and ventilating fan power socket CZ, the 6th pin of photo coupler G1 meets bidirectional triode thyristor SCR first anode T1 and 220V ac power supply live wire end L by resistance R 5, the 4th pin of photo coupler G1 connects the control utmost point of bidirectional triode thyristor SCR and an end of resistance R 6, another termination bidirectional triode thyristor SCR second plate T2 of resistance R 6 and the end of ventilating fan power socket CZ, another termination 220V ac power supply zero line side N of ventilating fan power socket CZ.
Description of drawings
Accompanying drawing 1 is embodiment's circuit working of high-power ventilating fan time base circuit control gear at intermittence schematic diagram that the utility model provides.
Embodiment
According to high-power ventilating fan time base circuit control gear circuit working schematic diagram at intermittence and the description of drawings shown in the accompanying drawing 1, and according to annexation between the components and parts in the described each several part circuit of model utility content, and the components and parts technical parameter described in the mode of execution requires and the circuit production main points are implemented to realize the utility model, below in conjunction with embodiment correlation technique of the present utility model is further described.
The selection of components and parts and technical parameter thereof
| Element number haoHAO number | The components and parts title | Model or technical order | Quantity | Remarks |
| IC1 | Time base circuit | NE555, |
1 | |
| G1 | Photo coupler | MOC3061 | 1 | Zero passage break-make type |
| QZ | The full-bridge rectification element | 1A、 |
1 | Or 4 1N4007 |
| SCR | Bidirectional triode thyristor | BTA20-600TW(20A/600V) | 1 | Trigger current≤5mA |
| D1、D2 | Switching diode | 1N4148 | 2 | |
| CW | Reference diode | 1W、 |
1 | |
| RP | Linear potentiometer | 1W、 |
1 | |
| R1 | Metal film resister | 1W、330KΩ | 1 | |
| R2 | Metal |
1/4W、 |
1 | |
| R3 | Metal |
1/4W、1KΩ | 1 | |
| R4 | Metal |
1/4W、 |
1 | |
| R5 | Resistance | 1/4W 62Ω | 1 | |
| R6、 | Resistance | 1/4W 510Ω | 1 | |
| C1 | Electric capacity | 0.68μF/ |
1 | Vertical |
| C2 | Electrochemical capacitor | 1000μF/ |
1 | Vertical |
| C3 | Electric capacity | 0.1μF/ |
1 | Vertical |
| CZ | High-power ventilating fan power socket | 3A、 |
1 |
Circuit production main points, circuit debugging and using method
Intermittently the circuit structure of control gear is fairly simple because of high-power ventilating fan time base circuit, as long as the electronic parts and components performance of selecting for use generally speaking is intact, and the components and parts annexation in the accompanying drawing 1 is welded to specifications, after physical connection line and welding quality are correct through scrutiny, circuit of the present utility model does not need to carry out any debugging substantially, as long as correctly in ventilating fan power socket CZ, insert high-power ventilating fan, and connect the 220V ac power supply, high-power ventilating fan time base circuit intermittently control gear gets final product proper functioning;
Because power supply adopts electric capacity pressure drop mode, in debugging and test process, human body can not directly touch the metal part of circuit board and all components and parts, to avoid electric shock accidents;
If circuit need debug, be that the device circuit debugging is convenient, circuit such as 12V DC voltage-stabilizing and eliminator, square wave generation circuit and duty cycle adjustment circuit, photosensitive two-way switch drive circuit can be debugged respectively;
Requirement is inserted the power control of ventilating fan and is advisable below 200W in ventilating fan power socket CZ.
Claims (1)
1. high-power ventilating fan time base circuit control gear intermittently, it comprises 220V ac power supply, Ac reduction voltage circuit and full bridge rectifier, 12V DC voltage-stabilizing and eliminator, square wave generation circuit and duty cycle adjustment circuit, photosensitive two-way switch drive circuit and high-power ventilating fan control circuit, it is characterized in that:
Described Ac reduction voltage circuit and full bridge rectifier are made up of capacitor C 1, resistance R 1 and full-bridge rectification element QZ, one termination 220V ac power supply live wire end L of one end of capacitor C 1 and resistance R 1, one end of another termination full-bridge rectification element QZ input end of the other end of capacitor C 1 and resistance R 1, another termination 220V ac power supply zero line side N of full-bridge rectification element QZ input end, the just very circuit anode VCC of full-bridge rectification element QZ output terminal, the negative pole connection circuit ground GND of full-bridge rectification element QZ output terminal;
Described 12V DC voltage-stabilizing and filtered electrical routing zener DW, electrochemical capacitor C2 form, the anodal VCC of the anodal connection circuit of the negative pole of reference diode DW and electrochemical capacitor C2, the negative pole connection circuit ground GND of the positive pole of reference diode DW and electrochemical capacitor C2;
Described square wave generation circuit and duty cycle adjustment circuit are by time base circuit IC1, resistance R 3, resistance R 4, capacitor C 3, potentiometer RP and switching diode D1～D2 forms, the model that time base circuit IC1 selects for use is NE555, the anodal VCC of the 4th pin of time base circuit IC1 and the 8th pin connection circuit, the 7th pin of time base circuit IC1 connects an end and an end of resistance R 4 and the negative pole of switching diode D1 of potentiometer RP by resistance R 3, the anodal VCC of the other end connection circuit of resistance R 4, the positive pole of the activity termination switching diode D1 of potentiometer RP and the positive pole of switching diode D2, the negative pole of switching diode D2 connects the 6th pin of time base circuit IC1 and an end of the 2nd pin and capacitor C 3, the 1st pin connection circuit ground GND of the other end of capacitor C 3 and time base circuit IC1, the 3rd pin of time base circuit IC1 connects photosensitive two-way switch drive circuit;
Described photosensitive two-way switch drive circuit is by time base circuit IC1, resistance R 2, photo coupler G1 and form, the model that photo coupler G1 selects for use is MOC3061, the 3rd pin of time base circuit IC1 connects the 1st pin of photo coupler G1, the 2nd pin connection circuit ground GND of photo coupler G1 by resistance R 2;
Described high-power ventilating fan control circuit is made up of photo coupler G1, bidirectional triode thyristor SCR, resistance R 5, resistance R 6 and ventilating fan power socket CZ, the 6th pin of photo coupler G1 meets bidirectional triode thyristor SCR first anode T1 and 220V ac power supply live wire end L by resistance R 5, the 4th pin of photo coupler G1 connects the control utmost point of bidirectional triode thyristor SCR and an end of resistance R 6, another termination bidirectional triode thyristor SCR second plate T2 of resistance R 6 and the end of ventilating fan power socket CZ, another termination 220V ac power supply zero line side N of ventilating fan power socket CZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053300 CN203130570U (en) | 2013-01-31 | 2013-01-31 | High-power exhaust fan time-base circuit intermittent control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053300 CN203130570U (en) | 2013-01-31 | 2013-01-31 | High-power exhaust fan time-base circuit intermittent control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130570U true CN203130570U (en) | 2013-08-14 |
Family
ID=48938551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053300 Expired - Fee Related CN203130570U (en) | 2013-01-31 | 2013-01-31 | High-power exhaust fan time-base circuit intermittent control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130570U (en) |
-
2013
- 2013-01-31 CN CN 201320053300 patent/CN203130570U/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: 20130814 Termination date: 20140131 |