CN2207663Y - Speed governer of electrical fan - Google Patents
Speed governer of electrical fan Download PDFInfo
- Publication number
- CN2207663Y CN2207663Y CN 94240762 CN94240762U CN2207663Y CN 2207663 Y CN2207663 Y CN 2207663Y CN 94240762 CN94240762 CN 94240762 CN 94240762 U CN94240762 U CN 94240762U CN 2207663 Y CN2207663 Y CN 2207663Y
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- CN
- China
- Prior art keywords
- resistance
- circuit
- capacitor
- integrated circuit
- voltage
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a speed governor of electrical fans. The utility model comprises a rectification circuit, a bidirectional thyristor circuit, a thyristor triggering circuit, a triggering-sensitivity regulating circuit, a touching signal input circuit for overcoming the shortcomings of high cost and unable to realize stepless speed regulation if a tapped iron-core reactor is used to carry out speed regulation. The thyristor triggering circuit mainly adopts an integrated circuit LS7232; the rectification circuit offers DC power supply to the utility model. The signal of anatomy induction is input into the integrated circuit LS7232 by the touching signal input circuit via a touching flap, thereby, altering the angle of flow of the bidirectional thyristor circuit, which alters the voltage at the two ends of a motor. Stepless speed regulation can be realized when the utility model is used for electric fans.
Description
The utility model relates to a kind of fan governor.
At present, the speed regulation of various electric fans all adopts the method for the impedance that changes tapped iron core reactor to realize.Reactor needs iron core and coil, has increased weight and volume, the manufacturing process complexity, and the cost of material is also very high, and uses reactor in electric fan, and the power factor of circuit is reduced.In addition, the mechanical type appliance switch is generally used in the switching of the resistance value of reactor, as toggle switch, key switch etc.On the one hand, speed change has level, can not realize speed governing smoothly.On the other hand, the mechanical type appliance switch damages easily, and particularly the contact in the switch burns out or loose contact easily.
Goal of the invention of the present utility model is a kind of fan governor that can realize stepless speed regulation of design.
Technical solution of the present utility model is, fan governor, and it comprises:
A, rectification circuit have resistance R
1, diode D
1, voltage-stabiliser tube D
2With capacitor C
1Resistance R
1An end be connected resistance R with the input B of AC power
1The other end and diode D
1Negative electrode connect.Diode D
1Anode and voltage-stabiliser tube D
2Anode connect voltage-stabiliser tube D
2Negative electrode be connected with the input A of AC power.Capacitor C
1Be connected in parallel on voltage-stabiliser tube D
2Two ends;
B, bidirectional triode thyristor circuit have bidirectional triode thyristor pipe TLC, resistance R
7With capacitor C
4The first anode T of bidirectional triode thyristor pipe TLC
1Be connected second plate T with the input B of AC power
2Be connected with the input C of fan motor DS, the input D of motor DS is connected with ac power input end A.By resistance R
7With capacitor C
4The two ends of the series circuit of forming respectively with the first anode T of bidirectional triode thyristor pipe TLC
1With second plate T
2Connect;
Its special character is that it also comprises:
C, thyristor gating circuit have integrated circuit (IC), resistance R
2, resistance R
3, capacitor C
2With capacitor C
3Integrated circuit (IC) adopts LS7232,1,2 pin and the voltage-stabiliser tube D of integrated circuit (IC)
2Negative electrode connect 6,7 pin and the voltage-stabiliser tube D of integrated circuit (IC)
2Anode connect.3 pin of integrated circuit (IC) and 4 pin respectively with capacitor C
2With capacitor C
3An end connect capacitor C
2With capacitor C
3The other end and voltage-stabiliser tube D
2Negative electrode connect.Resistance R
2An end be connected with ac power input end B, the other end is connected with 4 pin of integrated circuit (IC).Resistance R
5An end be connected with 8 pin of integrated circuit (IC), the other end is connected with the control utmost point G of bidirectional triode thyristor pipe TLC;
D, trigger sensitivity regulating circuit have adjustable resistance W
1And resistance R
3By adjustable resistance W
1And resistance R
3One end and the voltage-stabiliser tube D of the series circuit of forming
2Negative electrode connect, the other end is connected with 5 pin of integrated circuit (IC);
E, touch signal input circuit have the sheet M of touch and resistance R
4Touching sheet M is sheet metal, it and resistance R
4An end connect resistance R
4The other end be connected with 5 pin of integrated circuit (IC).
Trigger sensitivity regulating circuit of the present utility model can have adjustable resistance W
1, resistance R
3And K switch, by adjustable resistance W
1, resistance R
3One end and the voltage-stabiliser tube D of the series circuit of forming with K switch
2Negative electrode connect, the other end is connected with 5 pin of integrated circuit (IC).
The utility model only utilizes human body sensing, touches the smooth stepless speed-regulating that sheet M can realize electric fan with finger touch, can select various wind speed like this.Owing to saved reactor and mechanical type appliance switch, made weight saving of the present utility model, volume-diminished, simple in structure, cost reduction, and prolonged useful life.Since have K switch in the trigger sensitivity regulating circuit, when K switch disconnects, electric fan speed circulation change, the natural wind that fan-out is soft.When K switch is closed,, regulate adjustable resistance W according to different service conditions
1, can change trigger sensitivity, easy to use.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Accompanying drawing is a circuit diagram of the present utility model, and as Figure of abstract.
As shown in drawings, rectification circuit has resistance R
1, diode D
1, voltage-stabiliser tube D
2With capacitor C
1Resistance R
1An end be connected the other end and diode D with the input B of 220V AC power
1Negative electrode connect.Diode D
1Anode and voltage-stabiliser tube D
2Anode connect voltage-stabiliser tube D
2Negative electrode be connected with the input A of 220V AC power.Capacitor C
1Be connected in parallel on voltage-stabiliser tube D
2Two ends.Alternating current 220V voltage is through resistance R
1Step-down, diode D
1Halfwave rectifier is again through voltage-stabiliser tube D
2Slicing voltage stabilizing and capacitor C
1After the filtering, obtain the direct current of 15V, for integrated circuit (IC) provides power supply; The bidirectional triode thyristor circuit has bidirectional triode thyristor pipe TLC, resistance R
7With capacitor C
4The first anode T of bidirectional triode thyristor pipe TLC
1Be connected second plate T with the input B of AC power
2Be connected with the input C of fan motor DS, the input D of motor DS is connected with ac power input end A.By resistance R
7With capacitor C
4The two ends of the series circuit of forming respectively with the first anode T of bidirectional triode thyristor pipe TLC
1With second plate T
2Connect.Indicator light X and resistance R
6The two ends of the series circuit of forming respectively with the first anode T of bidirectional triode thyristor pipe TLC
1With second plate T
2Connect,, can find whether operate as normal of electronic circuit by viewing lamp.By resistance R
8With capacitor C
5The two ends of the series circuit of forming are connected with input C, the D of motor DS respectively.G can change the angle of flow of bidirectional triode thyristor pipe TLC by the control utmost point, thereby changes the average voltage that is added in motor DS two ends, reaches the purpose of speed governing.Resistance R
7With capacitor C
4The capacitance-resistance absorption circuit of forming bidirectional triode thyristor pipe TLC.Resistance R
8With capacitor C
5Form 3 subharmonic of motor DS, the bleed-off circuit of 5 subharmonic, to guarantee the operate as normal of motor DS under different angle of flow states; Thyristor gating circuit has integrated circuit (IC), resistance R
2, resistance R
5, capacitor C
2With capacitor C
3, integrated circuit (IC) adopts LS7232.1,2 pin and the voltage-stabiliser tube D of integrated circuit (IC)
2Negative electrode connect 6,7 pin and the voltage-stabiliser tube D of integrated circuit (IC)
2Anode connect.3 pin of integrated circuit (IC) and 4 pin respectively with capacitor C
2With capacitor C
3An end connect capacitor C
2With capacitor C
3The other end and voltage-stabiliser tube D
2Negative electrode connect.Resistance R
2An end be connected with ac power input end B, the other end is connected with 4 pin of integrated circuit (IC).Resistance R
5An end become 8 pin of IC circuit to be connected with tool, the other end is connected with the control utmost point G of bidirectional triode thyristor pipe TLC.Capacitor C
2The minimum pilot angle of decision bidirectional triode thyristor pipe TLC, capacitor C
3The maximum conduction angle of decision bidirectional triode thyristor pipe TLC.Resistance R
2Zero crossing detection resistance for the 220V alternating current.The trigger impulse of the 8 pin output of integrated circuit (IC) is through resistance R
5The control utmost point G of input bidirectional triode thyristor pipe TLC is in order to the angle of flow of control bidirectional triode thyristor pipe TLC; The trigger sensitivity regulating circuit has adjustable resistance W
1, resistance R
3And K switch.By adjustable resistance W
1, resistance R
3One end and the voltage-stabiliser tube D of the series circuit of forming with K switch
2Negative electrode connect, the other end is connected with 5 pin of integrated circuit (IC).When K switch disconnects, the rotating speed speed circulation change of motor DS, the natural wind that the electric fan fan-out is soft.When K switch is closed, can regulate adjustable resistance W according to different environments for use
1Thereby, change trigger sensitivity; The touch signal input circuit has the sheet M of touch and resistance R
4Touching sheet M is sheet metal, it and resistance R
4An end connect resistance R
4The other end be connected with 5 pin of integrated circuit (IC).The induced signal of human body is by touching sheet M through resistance R
45 pin of input ic IC, thereby the output of control integrated circuit IC8 pin reach the purpose of speed governing.The rotating speed speed of fan motor DS, the time length that touches sheet M with human body touch is relevant, and rotating speed changed continuously with the touch time, realized smooth stepless speed-regulating.
Claims (2)
1, fan governor, it comprises:
A, rectification circuit have resistance (R
1), diode (D
1), voltage-stabiliser tube (D
2) and capacitor (C
1), resistance (R
1) an end be connected resistance (R with the input (B) of AC power
1) the other end and diode (D
1) negative electrode connect diode (D
1) anode and voltage-stabiliser tube (D
2) anode connect voltage-stabiliser tube (D
2) negative electrode be connected capacitor (C with the input (A) of AC power
1) be connected in parallel on voltage-stabiliser tube (D
2) two ends;
B, bidirectional triode thyristor circuit have bidirectional triode thyristor pipe (TLC), resistance (R
7) and capacitor (C
4), the first anode (T of bidirectional triode thyristor pipe (TLC)
1) be connected second plate (T with the input (B) of AC power
2) be connected with the input (C) of fan motor (DS), the input (D) of motor (DS) is connected with ac power input end (A), by resistance (R
7) and capacitor (C
4) series circuit formed two ends respectively with the first anode (T of bidirectional triode thyristor pipe (TLC)
1) and second plate (T
2) connect;
It is characterized in that it also comprises:
C, thyristor gating circuit have integrated circuit (IC), resistance (R
2), resistance (R
5), capacitor (C
2) and capacitor (C
3), integrated circuit (IC) adopts LS7232, (1) of integrated circuit (IC), (2) pin and voltage-stabiliser tube (D
2) negative electrode connect (6) of integrated circuit (IC), (7) pin and voltage-stabiliser tube (D
2) anode connect, (3) pin of integrated circuit (IC) and (4) pin respectively with capacitor (C
2) and capacitor (C
3) an end connect capacitor (C
2) and capacitor (C
3) the other end and voltage-stabiliser tube (D
2) negative electrode connect resistance (R
2) an end be connected with ac power input end (B), the other end is connected resistance (R with (4) pin of integrated circuit (IC)
5) an end be connected with (8) pin of integrated circuit (IC), the other end is connected with the control utmost point (G) of bidirectional triode thyristor pipe (TLC);
D, trigger sensitivity regulating circuit have adjustable resistance (W
1) and resistance (R
3), by adjustable resistance (W
1) and resistance (R
3) end and the voltage-stabiliser tube (D of the series circuit formed
2) negative electrode connect, the other end is connected with (5) pin of integrated circuit (IC);
E, touch signal input circuit have touch sheet (M) and resistance (R
4), touching sheet (M) is sheet metal, it and resistance (R
4) an end connect resistance (R
4) the other end be connected with (5) pin of integrated circuit (IC).
According to the described fan governor of claim 1, it is characterized in that 2, the trigger sensitivity regulating circuit has adjustable resistance (W
1), resistance (R
3) and switch (K), by adjustable resistance (W
1), resistance (R
3) and an end and the voltage-stabiliser tube (D of the series circuit formed of switch (K)
2) negative electrode connect, the other end is connected with (5) pin of integrated circuit (IC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240762 CN2207663Y (en) | 1994-06-11 | 1994-06-11 | Speed governer of electrical fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240762 CN2207663Y (en) | 1994-06-11 | 1994-06-11 | Speed governer of electrical fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207663Y true CN2207663Y (en) | 1995-09-13 |
Family
ID=33847701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94240762 Expired - Fee Related CN2207663Y (en) | 1994-06-11 | 1994-06-11 | Speed governer of electrical fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207663Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353655C (en) * | 2003-03-04 | 2007-12-05 | 艾斯恩科技股份有限公司 | Digitally regulating power controller |
-
1994
- 1994-06-11 CN CN 94240762 patent/CN2207663Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353655C (en) * | 2003-03-04 | 2007-12-05 | 艾斯恩科技股份有限公司 | Digitally regulating power controller |
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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 |