CN204921332U - Air pump speed governing circuit - Google Patents
Air pump speed governing circuit Download PDFInfo
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- CN204921332U CN204921332U CN201520660378.4U CN201520660378U CN204921332U CN 204921332 U CN204921332 U CN 204921332U CN 201520660378 U CN201520660378 U CN 201520660378U CN 204921332 U CN204921332 U CN 204921332U
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Abstract
The utility model discloses an air pump speed governing circuit, including resistance R1 to R6, piezo -resistor R7, piezo -resistor R8, optoelectronic coupler A, bidirectional thyristor jin zha pipe D, electric capacity C1, electric capacity C2, three -terminal interface B1 and both ends interface B2, pull -up resistance R2 is connected to the last port of optoelectronic coupler A 1, and pull -up resistance R1 are connected to the last port 2 of optoelectronic coupler A, and interface B1's port 1, bidirectional thyristor jin zha pipe D's port 1, piezo -resistor R7 and electric capacity C3, optoelectronic coupler A's port 4 connecting resistance R3's one end is connected simultaneously to optoelectronic coupler A's port 3. The utility model discloses an above -mentioned principle can realize that it is the control delay time time to carry out the people since zero point to the air pump to the realization is to air pump speed adjustment, and the air pump speed that this method was adjusted is more accurate, still sets up filtering subtotal protection circuit part in this circuit, long service life.
Description
Technical field
The utility model relates to air pump field, is specifically related to air pump alignment circuit.
Background technique
Air pump speed governing mainly refers to a kind of micro air pump regulating air pump flow parameter by automatically controlled mode.Its most outstanding feature is just the use of the barrier film of applicable speed change work and high-grade full-function brushless electric machine.It can regulate motor speed by the pulse wide modulation of electronic circuit (PWM) function, thus changes flow.Easier compared with " flow control valve " scheme that installs additional in pipeline, be more suitable for automatic control." speed governing air pump " requirement to brushless electric machine, barrier film, moving parts is very high, and manufacturing process is also very exquisite.Corresponding product has fml series, FAC etc.In existing air pump speed governing field; owing to cannot realize carrying out time delay to air pump from zero point, thus cause air pump governing speed inaccurate, in addition; lack protection and filtering part in existing air pump speed governing field, easily by other signal disturbing and working life not long.
Model utility content
The utility model overcomes the deficiencies in the prior art; air pump alignment circuit is provided; can realize carrying out manual control delay time to air pump from zero point; thus the adjustment realized air pump speed; the air pump speed that the method regulates is more accurate; filtering part and protective circuit part are also set in this circuit, long service life.
For solving above-mentioned technical problem, the utility model is by the following technical solutions: air pump alignment circuit, comprise resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, piezoresistance R7, piezoresistance R8, photo coupler A, bidirectional triode thyristor gold brake tube D, electric capacity C1, electric capacity C2, three end interface B1 and two end interface B2, port one on described photo coupler A connects pull-up resistor R2, port 2 on photo coupler A connects pull-up resistor R1, the port one of the port 3 of photo coupler A connection interface B1 simultaneously, the port one of bidirectional triode thyristor gold brake tube D, piezoresistance R7 and electric capacity C3, one end of the port 4 contact resistance R3 of photo coupler A, the other end of resistance R3 also connects port 2 and electric capacity C1 one end of bidirectional triode thyristor gold brake tube D simultaneously, the electric capacity C1 the other end connects the port 3 of bidirectional triode thyristor gold brake tube D, resistance R4 is connected in parallel on the two ends of electric capacity C1, the port 2 of photo coupler A also arranges air pump connecting end PUMP, series resistors R5 and electric capacity C2 successively between the port one of described bidirectional triode thyristor gold brake tube D and port 3, piezoresistance R7 is connected between the port one of described three end interface B1 and port 3, the port 2 of three end interface B1 is unsettled, also connect piezoresistance R8 between the port 3 and the port 3 of bidirectional triode thyristor gold brake tube D of three end interface B1, piezoresistance R8 and the common port of three end interface B1 are connected the port one of two end interface B2, electric capacity C3 one end and resistance R6 one end simultaneously, and the resistance R6 the other end also connects the port 2 of two end interface B2 and the port 3 of bidirectional triode thyristor gold brake tube D simultaneously.
Air pump alignment circuit is accessed by air pump connecting end PUMP for needing the air pump of speed governing, photodiode on photo coupler A is connected and is sent light source, the intensity of light depends on the size of exciting current, this illumination is mapped to after on the light receiver on the photo coupler that is packaged together, photoelectric current is created because of photoelectric effect, drawn by light receiver output terminal, so just can realize low tension to light, then by the conversion of light to high-tension electricity.High-tension electricity after conversion is through the rectified action of bidirectional triode thyristor gold brake tube D, when sinusoidal voltage is in positive half cycle, only when controlling the port 2 additional trigger impulse of pole i.e. bidirectional triode thyristor gold brake tube D, controllable silicon is just triggered conducting, load just has voltage to export, therefore by changing the time controlling extremely to go up trigger impulse arrival, the mean value of output voltage in further regulating load can be carried out, reaches the effect of controlled rectification.After two end interface B2 connect machine operation, make port one and port 3 conducting of bidirectional triode thyristor gold brake tube D, the port 2 controlling pole i.e. bidirectional triode thyristor gold brake tube D works under the triggering of photo coupler A induced voltage, and the time that the trigger impulse that photo coupler A produces arrives then can manual control.And three end interface B1 have three road interfaces, Ke Jiang mono-road interface connects zero-detection circuit, remake for bidirectional triode thyristor gold brake tube D trigger after zero-detection circuit detects zero point, the time that the time of time delay then can trigger by controlling bidirectional triode thyristor gold brake tube D reaches manual control.Pull-up resistor R1 wherein and pull-up resistor R2 is then then for protecting three end interface B1 and two end interface B2 to be damaged by excessive voltage respectively for the protection of the port one of photo coupler A and port 2, piezoresistance R7 and piezoresistance R8.Electric capacity C3 and resistance R6, resistance R5 and electric capacity C2, electric capacity C1 and resistance R3 then form RC filtering, for the clutter in filtering circuit.This circuit can realize carrying out manual control delay time to air pump from zero point, thus realized the adjustment to air pump speed, and the air pump speed that the method regulates is more accurate, also arranges filtering part and protective circuit part, long service life in this circuit.
The model of described photo coupler A is MOC3021.This model can trigger in time, ensures the efficiency of air pump speed governing.
The model of described bidirectional triode thyristor gold brake tube D is BTA12.When Ac zero passage, sinusoidal wave voltage is size variation, has no-voltage, and triggering and conducting again again when voltage is zero, is just equivalent to have turned off if do not trigger it, this makes it possible to detect accurately start zero point to carry out time delay.
Motor is connected between the interface 1 of described two end interface B2 and interface 2.
Compared with prior art, the beneficial effects of the utility model are:
1, this circuit can realize carrying out manual control delay time to air pump from zero point; thus the adjustment realized air pump speed; the air pump speed that the method regulates is more accurate; many places RC filtering part is also set in this circuit; piezoresistance R7 and piezoresistance R8 for the protection of three end interfaces and two end interfaces, long service life.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Be further elaborated the utility model below in conjunction with accompanying drawing, embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, the utility model comprises the resistance R1 of 5.1 kilo-ohms, the resistance R2 in 510 Europe, the resistance R3 in 820 Europe, the resistance R4 of one kilo-ohm, the resistance R5 in every 0.5 watt of 510 Europe, the resistance R6 of 1 kilo-ohm, the piezoresistance R7 of AC470V/10K, the piezoresistance R8 of AC470V/10K, photo coupler A, bidirectional triode thyristor gold brake tube D, the electric capacity C1 of 102/2KV, the electric capacity C2 of 102/2KV, the electric capacity C3 of 0.1UF/AC275V, three end interface B1 and two end interface B2, pull-up resistor R1 is all connected 3.3V power supply with R2 one end, three end interface B1 connect AC220V power supply and zero cross detection circuit, port one on described photo coupler A connects pull-up resistor R2, port 2 on photo coupler A connects pull-up resistor R1, the port one of the port 3 of photo coupler A connection interface B1 simultaneously, the port one of bidirectional triode thyristor gold brake tube D, piezoresistance R7 and electric capacity C3, one end of the port 4 contact resistance R3 of photo coupler A, the other end of resistance R3 also connects port 2 and electric capacity C1 one end of bidirectional triode thyristor gold brake tube D simultaneously, the electric capacity C1 the other end connects the port 3 of bidirectional triode thyristor gold brake tube D, resistance R4 is connected in parallel on the two ends of electric capacity C1, and the port 2 of photo coupler A also arranges air pump connecting end PUMP, series resistors R5 and electric capacity C2 successively between the port one of described bidirectional triode thyristor gold brake tube D and port 3, piezoresistance R7 is connected between the port one of described three end interface B1 and port 3, the port 2 of three end interface B1 is unsettled, also connect piezoresistance R8 between the port 3 and the port 3 of bidirectional triode thyristor gold brake tube D of three end interface B1, piezoresistance R8 and the common port of three end interface B1 are connected the port one of two end interface B2, electric capacity C3 one end and resistance R6 one end simultaneously, and the resistance R6 the other end also connects the port 2 of two end interface B2 and the port 3 of bidirectional triode thyristor gold brake tube D simultaneously.Light emitting diode positive pole on photo coupler A connects pull-up resistor R2, and negative pole connects air pump connecting end PUMP.
Air pump alignment circuit is accessed by air pump connecting end PUMP for needing the air pump of speed governing, photodiode on photo coupler A is connected and is sent light source, the intensity of light depends on the size of exciting current, this illumination is mapped to after on the light receiver on the photo coupler that is packaged together, photoelectric current is created because of photoelectric effect, drawn by light receiver output terminal, so just can realize low tension to light, then by the conversion of light to high-tension electricity.High-tension electricity after conversion is through the rectified action of bidirectional triode thyristor gold brake tube D, when sinusoidal voltage is in positive half cycle, only when controlling the port 2 additional trigger impulse of pole i.e. bidirectional triode thyristor gold brake tube D, controllable silicon is just triggered conducting, load just has voltage to export, therefore by changing the time controlling extremely to go up trigger impulse arrival, the mean value of output voltage in further regulating load can be carried out, reaches the effect of controlled rectification.After two end interface B2 connect machine operation, make port one and port 3 conducting of bidirectional triode thyristor gold brake tube D, the port 2 controlling pole i.e. bidirectional triode thyristor gold brake tube D works under the triggering of photo coupler A induced voltage, and the time that the trigger impulse that photo coupler A produces arrives then can manual control.And three end interface B1 have three road interfaces, Ke Jiang mono-road interface connects zero-detection circuit, remake for bidirectional triode thyristor gold brake tube D trigger after zero-detection circuit detects zero point, the time that the time of time delay then can trigger by controlling bidirectional triode thyristor gold brake tube D reaches manual control.Pull-up resistor R1 wherein and pull-up resistor R2 is then then for protecting three end interface B1 and two end interface B2 to be damaged by excessive voltage respectively for the protection of the port one of photo coupler A and port 2, piezoresistance R7 and piezoresistance R8.Electric capacity C3 and resistance R6, resistance R5 and electric capacity C2, electric capacity C1 and resistance R3 then form RC filtering, for the clutter in filtering circuit.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: the model of photo coupler A is MOC3021.This model can trigger in time, ensures the efficiency of air pump speed governing.
The model of described bidirectional triode thyristor gold brake tube D is BTA12.When Ac zero passage, sinusoidal wave voltage is size variation, has no-voltage, and triggering and conducting again again when voltage is zero, is just equivalent to have turned off if do not trigger it, this makes it possible to detect accurately start zero point to carry out time delay.
Motor is connected between the interface 1 of described two end interface B2 and interface 2.
Motor is connected between the interface 1 of described two end interface B2 and interface 2.For triggering bidirectional triode thyristor gold brake tube D.
Just this model utility can be realized as mentioned above.
Claims (4)
1. air pump alignment circuit, it is characterized in that: comprise resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, piezoresistance R7, piezoresistance R8, photo coupler A, bidirectional triode thyristor gold brake tube D, electric capacity C1, electric capacity C2, three end interface B1 and two end interface B2, port one on described photo coupler A connects pull-up resistor R2, port 2 on photo coupler A connects pull-up resistor R1, the port one of the port 3 of photo coupler A connection interface B1 simultaneously, the port one of bidirectional triode thyristor gold brake tube D, piezoresistance R7 and electric capacity C3, one end of the port 4 contact resistance R3 of photo coupler A, the other end of resistance R3 also connects port 2 and electric capacity C1 one end of bidirectional triode thyristor gold brake tube D simultaneously, the electric capacity C1 the other end connects the port 3 of bidirectional triode thyristor gold brake tube D, resistance R4 is connected in parallel on the two ends of electric capacity C1, the port 2 of photo coupler A also arranges air pump connecting end PUMP, series resistors R5 and electric capacity C2 successively between the port one of described bidirectional triode thyristor gold brake tube D and port 3, piezoresistance R7 is connected between the port one of described three end interface B1 and port 3, the port 2 of three end interface B1 is unsettled, also connect piezoresistance R8 between the port 3 and the port 3 of bidirectional triode thyristor gold brake tube D of three end interface B1, piezoresistance R8 and the common port of three end interface B1 are connected the port one of two end interface B2, electric capacity C3 one end and resistance R6 one end simultaneously, and the resistance R6 the other end also connects the port 2 of two end interface B2 and the port 3 of bidirectional triode thyristor gold brake tube D simultaneously.
2. air pump alignment circuit according to claim 1, is characterized in that: the model of described photo coupler A is MOC3021.
3. air pump alignment circuit according to claim 1, is characterized in that: the model of described bidirectional triode thyristor gold brake tube D is BTA12.
4. air pump alignment circuit according to claim 1, is characterized in that: connect motor between the interface 1 of described two end interface B2 and interface 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520660378.4U CN204921332U (en) | 2015-08-30 | 2015-08-30 | Air pump speed governing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520660378.4U CN204921332U (en) | 2015-08-30 | 2015-08-30 | Air pump speed governing circuit |
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| Publication Number | Publication Date |
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| CN204921332U true CN204921332U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520660378.4U Active CN204921332U (en) | 2015-08-30 | 2015-08-30 | Air pump speed governing circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065246A (en) * | 2015-08-30 | 2015-11-18 | 成都千里电子设备有限公司 | Circuit for adjusting speed of air pump |
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2015
- 2015-08-30 CN CN201520660378.4U patent/CN204921332U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065246A (en) * | 2015-08-30 | 2015-11-18 | 成都千里电子设备有限公司 | Circuit for adjusting speed of air pump |
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Address after: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park Patentee after: Sichuan Trinidad times Yikang medical Polytron Technologies Inc Address before: 610000 Sichuan city of Chengdu province Chenghua District two East 3rd Ring Rd section of Longtan Industrial Park Patentee before: Chengdu a thousand li Electronics Equipment Co., Ltd |