CN102828982A - Speed regulating device of air exchange fan - Google Patents
Speed regulating device of air exchange fan Download PDFInfo
- Publication number
- CN102828982A CN102828982A CN 201210358627 CN201210358627A CN102828982A CN 102828982 A CN102828982 A CN 102828982A CN 201210358627 CN201210358627 CN 201210358627 CN 201210358627 A CN201210358627 A CN 201210358627A CN 102828982 A CN102828982 A CN 102828982A
- Authority
- CN
- China
- Prior art keywords
- air exchange
- speed
- ventilation fan
- exchange fan
- regulating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a speed regulating device of an air exchange fan. The speed regulating device of the air exchange fan comprises a 220V alternating current power supply, a resistor-capacitor phase-shifting circuit, a bidirectional triode thyristor control circuit and the air exchange fan. Various air exchange fans on the market work at only one rotating speed and cannot be regulated in rotating speed when in use. The speed regulating device of the air exchange fan, provided by the invention, can be used for regulating the rotating speed of the air exchange fan as required. When rapid air exchange in a room is needed, the air exchange fan can work at a full speed; when long-term air exchange in the room is needed, the air exchange fan can run at a low speed; and thus, not only can unnecessary power waste be effectively avoided, but also the air exchange fan can be effectively protected from being burned out due to overhigh temperature after long-term operation. The speed regulating device of the air exchange fan, provided by the invention, is simple in circuit and completely adopts common elements so as to be suitable for mass development and applied to industrial mass development of novel air exchange fans with speed regulating functions.
Description
Technical field
The invention belongs to the electron controls technology application, is about a kind of ventilation fan arrangements for speed regulation.
Background technique
The characteristics of various ventilation fans are that the rotating speed of ventilation fan has only a kind of speed on the market, can't regulate the running speed of ventilation fan in the use.When room or confined space need long-time ventilation, can only let the long-time full-speed operation of ventilation fan, so both wasted electric power, also make the ventilation fan motor long easily because of the operating time, cause motor overheating and burnt out.
Ventilation fan arrangements for speed regulation of the present invention can be adjusted the running speed of ventilation fan as required.When the room needs ventilation fast, can let the ventilation fan full speed operation; When the room needs long-time ventilation, can let the ventilation fan low-speed running; So both can effectively stop unnecessary power wastage, and can also effectively protect the ventilation fan motor can be because of overheated not the burning out of long-time running.
Below specify ventilation fan arrangements for speed regulation of the present invention related relevant technologies content in implementation process.
Summary of the invention
Goal of the invention and beneficial effect: the characteristics of various ventilation fans are that the rotating speed of ventilation fan has only a kind of speed on the market, can't regulate the running speed of ventilation fan in the use.When room or confined space need long-time ventilation, can only let the long-time full-speed operation of ventilation fan, so both wasted electric power, also make the ventilation fan motor long easily because of the operating time, cause motor overheating and burnt out.
Ventilation fan arrangements for speed regulation of the present invention can be adjusted the running speed of ventilation fan as required.When the room needs ventilation fast, can let the ventilation fan full speed operation; When the room needs long-time ventilation, can let the ventilation fan low-speed running; So both can effectively stop unnecessary power wastage, and can also effectively protect the ventilation fan motor can be because of overheated not the burning out of long-time running.It is simple that ventilation fan arrangements for speed regulation of the present invention have a circuit, all uses common components and parts, is well suited for exploitation in batches, is applicable to that factory's exploitation has the air scavenger fan of speed-regulating function.
The circuit working principle: the rc phase shifter circuit in the circuit of ventilation fan arrangements for speed regulation is made up of linear potentiometer RP, adaptive resistance R 1, capacitor C 1 and two-way triggering diode KS, and rc phase shifter circuit is being controlled the angle of flow of bidirectional triode thyristor SCR.When capacitor C 1 voltage through adaptive resistance R 1 when charging rises to two-way triggering diode KS conducting voltage with linear potentiometer RP; The bidirectional triode thyristor SCR conducting that is triggered; Make the ventilation fan entry into service; The resistance of linear adjustment potentiometer RP can change capacitor C 1 charge rate, thereby changes the angle of flow of bidirectional triode thyristor SCR at the positive and negative half cycle of 220V Ac, makes ventilation fan obtain different alternating voltages; When the resistance of linear potentiometer RP reduces, the angle of flow of bidirectional triode thyristor SCR when the positive and negative half cycle of 220V Ac will increase, and the alternating voltage that ventilation fan is obtained increases thereupon, and the rotary speed of ventilation fan is just accelerated; Otherwise when the resistance of linear potentiometer RP increased, the angle of flow of bidirectional triode thyristor SCR when the positive and negative half cycle of 220V Ac will diminish, and the alternating voltage that ventilation fan is obtained and then reduces, and the rotating speed of ventilation fan also decreases; Through the resistance of adjustment linear potentiometer RP, realized the function of ventilation fan speed governing.
Technological scheme: the ventilation fan arrangements for speed regulation, it is made up of 220V Ac, rc phase shifter circuit, control circuit of bidirectional thyristor and ventilation fan, and its characteristic comprises:
Rc phase shifter circuit: form by linear potentiometer RP, adaptive resistance R 1, capacitor C 1 and two-way triggering diode KS; The control utmost point G of the termination bidirectional triode thyristor SCR of two-way triggering diode KS; One end of another termination capacitor C 1 of two-way triggering diode KS and an end of adaptive resistance R 1; The zero line side N of another termination 220V Ac of capacitor C 1; An end and the movable end thereof of the other end wiring property potentiometer RP of adaptive resistance R 1, the first anode T1 of another termination bidirectional triode thyristor SCR of linear potentiometer RP;
The first anode T1 of bidirectional triode thyristor SCR in the control circuit of bidirectional thyristor connects an end of ventilation fan, the live wire end L of another termination 220V Ac of ventilation fan, and the second plate T2 of bidirectional triode thyristor SCR meets the zero line side N of 220V Ac.
Description of drawings
Accompanying drawing 1 is an embodiment's of a ventilation fan arrangements for speed regulation provided by the invention circuit working schematic diagram.
Embodiment
Technical requirements according to the components and parts of the circuit working schematic diagram of ventilation fan arrangements for speed regulation shown in the accompanying drawing 1 and description of drawings and the following stated is implemented, and can realize the present invention.
The selection of components and parts and technical parameter thereof
SCR is a bidirectional triode thyristor, and the model of selecting for use is 3CTSI or DB3;
KS is a bidirectional trigger diode, and the model of selecting for use is 2CTS or BCR3AM;
It is the 1W metal film resister that resistance is selected RTX-1 type power for use, and adaptive resistance R 1 resistance is 8.2～12K Ω; The resistance of linear potentiometer RP is 27K Ω;
Capacitor C 1 is selected electric capacity of the dacron for use, and capacity is 0.1 μ F, require the withstand voltage >=200V of capacitor C 1;
The power that the ventilation fan motor is selected for use is 30～50W.
Circuit production main points and circuit debugging
When making the circuit of ventilation fan arrangements for speed regulation; As long as the electronic parts and components performance of selecting for use is intact; And the components and parts annexation in the accompanying drawing is welded to specifications, physical connection line and welding quality through scrutiny errorless after, circuit is as long as debugging gets final product proper functioning a little;
When circuit debugging; At first in circuit, insert the ventilation fan of 30～50W; Linear adjustment potentiometer RP changes the alternating current voltage at ventilation fan two ends between 130～218V; If the change in voltage interval differs bigger, can suitably adjust the resistance or the different linear potentiometer RP of transposing resistance of adaptive resistance R 1;
Then potentiometer RP is transferred to the minimum position of resistance, the alternating voltage of surveying ventilation fan motor two ends with multimeter should if be lower than the resistance that 200V can slightly reduce adaptive resistance R 1, make it to reach requirement more than 200V;
Adjust the resistance of linear potentiometer RP at last, make ventilation fan respectively in maximum speed and minimum speed running, the circuit of adjusting can come into operation.
Claims (1)
1. ventilation fan arrangements for speed regulation, it is made up of 220V Ac, rc phase shifter circuit, control circuit of bidirectional thyristor and ventilation fan, and its characteristic comprises:
Described rc phase shifter circuit is made up of linear potentiometer RP, adaptive resistance R 1, capacitor C 1 and two-way triggering diode KS; The control utmost point G of the termination bidirectional triode thyristor SCR of two-way triggering diode KS; One end of another termination capacitor C 1 of two-way triggering diode KS and an end of adaptive resistance R 1; The zero line side N of another termination 220V Ac of capacitor C 1; An end and the movable end thereof of the other end wiring property potentiometer RP of adaptive resistance R 1, the first anode T1 of another termination bidirectional triode thyristor SCR of linear potentiometer RP;
The first anode T1 of bidirectional triode thyristor SCR in the described control circuit of bidirectional thyristor connects an end of ventilation fan, the live wire end L of another termination 220V Ac of ventilation fan, and the second plate T2 of bidirectional triode thyristor SCR meets the zero line side N of 220V Ac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210358627 CN102828982A (en) | 2012-09-20 | 2012-09-20 | Speed regulating device of air exchange fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210358627 CN102828982A (en) | 2012-09-20 | 2012-09-20 | Speed regulating device of air exchange fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828982A true CN102828982A (en) | 2012-12-19 |
Family
ID=47332235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210358627 Withdrawn CN102828982A (en) | 2012-09-20 | 2012-09-20 | Speed regulating device of air exchange fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102828982A (en) |
-
2012
- 2012-09-20 CN CN 201210358627 patent/CN102828982A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20121219 |