CN204061260U - A kind of draught fan control circuit - Google Patents
A kind of draught fan control circuit Download PDFInfo
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- CN204061260U CN204061260U CN201420448383.4U CN201420448383U CN204061260U CN 204061260 U CN204061260 U CN 204061260U CN 201420448383 U CN201420448383 U CN 201420448383U CN 204061260 U CN204061260 U CN 204061260U
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Abstract
A kind of draught fan control circuit, comprise blower fan port, three phase rectifier module, dual power supply module, low voltage disconnection module and power management module, dual power supply module comprises storage battery, thyristor, the first reference diode and the first resistance; Low voltage disconnects module and comprises N-channel MOS pipe and the second resistance; Energy supply control module comprises integrated stable voltage circuit, the second reference diode, inductance and one second electric capacity that a model is LM2576.The draught fan control circuit that the utility model provides has dual power supply function and low voltage break function, has good self-startup ability, avoids the normal endless loop state occurred in prior art.
Description
Technical field
The utility model relates to a kind of circuit, is specifically related to a kind of draught fan control circuit.
Background technique
The mode that traditional draught fan control circuit adopts storage battery single power supply, low voltage to disconnect.This mode there will be an endless loop: if the power supply voltage of storage battery is lower than the setting voltage of break function, draught fan control circuit will disconnect, and draught fan control circuit oneself cannot recover automatically, reason be draught fan control circuit only battery tension is enough high can work time, the luminous energy of output could be charged a battery by draught fan control circuit by blower fan, even if blower fan exports and has electricity after controller of fan disconnects, but battery tension is inadequate, controller of fan low voltage disconnects, so this part electric energy cannot be charged to inside storage battery.Blower fan electric energy cannot be charged to storage battery, and battery tension would not rise, and controller of fan would not restart.
Model utility content
In order to make up the defect of prior art, draught fan control circuit is made to have self-startup ability, the draught fan control circuit that the utility model provides a kind of dual power supply, low voltage to disconnect; Concrete technological scheme is as follows:
A kind of draught fan control circuit, comprise blower fan port, three phase rectifier module, dual power supply module, low voltage disconnection module and power management module, wherein, blower fan port comprises pin 1, pin 2, pin 3 and pin 4; Wherein:
Pin 1, the pin 2 of blower fan port are connected with pin 3 is corresponding with U, V, W of the threephase AC that blower fan exports; In the inside of blower fan port, pin 4 and pin 1 are connected, and pin 5 and pin 2 are connected, and pin 6 is communicated with pin 3;
Three phase rectifier module comprises input end and output terminal, and wherein input end comprises U pin, V pin and W pin, distinguishes the pin 4 of connecting fan port, pin 5 and pin 6; Output terminal comprises three phase rectifier module positive pole and three phase rectifier module negative;
Dual power supply module comprises storage battery, thyristor, the first reference diode and the first resistance; Wherein, three phase rectifier module positive pole connects the positive pole of thyristor, and the negative pole of thyristor connects the positive pole of storage battery; The positive pole of three phase rectifier module positive pole and storage battery is connected to power management module respectively; The positive pole of three phase rectifier module positive pole and storage battery is also connected to the negative pole of the first reference diode respectively; The positive pole of the first reference diode is by the first resistance eutral grounding, and the positive pole of the first reference diode is also connected to three phase rectifier module negative by the first resistance;
Low voltage disconnects module and comprises N-channel MOS pipe and the second resistance; Wherein, the grid of N-channel MOS pipe connects the positive pole of the first reference diode, and the drain electrode of N-channel MOS pipe connects the positive pole of three phase rectifier module positive pole and storage battery respectively by the second resistance, the drain electrode of N-channel MOS pipe is also connected to power management module; The grid of N-channel MOS pipe and sources connected in parallel are in the two ends of the first resistance;
Energy supply control module comprises integrated stable voltage circuit, the second reference diode, inductance and one second electric capacity that a model is LM2576; Integrated stable voltage circuit comprises pin 1, pin 2, pin 3, pin 4 and pin 5; Wherein, the pin 1 of integrated stable voltage circuit connects the positive pole of three phase rectifier module positive pole and storage battery respectively, and the pin 5 of integrated stable voltage circuit connects the drain electrode of N-channel MOS pipe; The pin 2 of integrated stable voltage circuit connects the second reference diode negative pole, the plus earth of the second reference diode; The pin 2 of integrated stable voltage circuit is also successively by inductance, the second electric capacity by the minus earth of the second electric capacity; The positive pole of the pin 4 of integrated stable voltage circuit, inductance, the second electric capacity connects a DC electrical source.
Preferably, dual power supply module also comprises the first diode, the second diode, the 3rd diode and the 4th diode; Wherein: three phase rectifier module positive pole is connected to the pin 1 of integrated stable voltage circuit by the first diode; The positive pole of storage battery is connected to the pin 1 of integrated stable voltage circuit by the second diode; First resistance is by the 4th diode ground connection; Second resistance is also by the pin 4 of the 3rd diode connecting fan port.
Preferably, power management module also comprises the first electric capacity; The positive pole of the first electric capacity connects the negative pole of the first diode, the minus earth of the first electric capacity.
Preferably, three phase rectifier module comprise the three-phase rectifier that a model is 6RI50-120, the model of thyristor is MDK100-16, and the model of N-channel MOS pipe is IRFS3006, the model of the first reference diode is BZX84-A36, and the model of the second reference diode is MBR360; The model of the first diode, the second diode, the 3rd diode and the 4th diode is IN4007.
Compared with prior art, the draught fan control circuit that the utility model provides, has:
Dual power supply function: the direct current export blower fan rectification and battery tension are as two-way input simultaneously to controller power source module for power supply;
Low voltage break function: when the direct current that battery tension and blower fan rectification export is simultaneously lower than permission electric discharge minimum voltage; controller disconnects own power source automatically by hardware circuit; the protection storage battery that no longer works unduly discharges; when the direct current that battery tension or blower fan rectification export is higher than permission electric discharge minimum voltage; controller opens own power source automatically by hardware circuit, starts working.
The draught fan control circuit that the utility model provides has good self-startup ability, avoids the normal endless loop state occurred in prior art.
Accompanying drawing explanation
Fig. 1 is draught fan control circuit circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, by way of example the effect of the concrete structure of the utility model circuit, working principle and generation is described further, fully understands the utility model to enable those skilled in the art.
Embodiment 1:
As shown in Figure 1, a kind of draught fan control circuit, comprise blower fan port XS1, three phase rectifier module D1, dual power supply module, low voltage disconnection module and power management module, blower fan port comprises pin 1, pin 2, pin 3 and pin 4; Wherein:
Pin 1, the pin 2 of blower fan port XS1 are connected with pin 3 is corresponding with U, V, W of the threephase AC that blower fan exports; In the inside of blower fan port, pin 4 and pin 1 are connected, and pin 5 and pin 2 are connected, and pin 6 is communicated with pin 3;
Three phase rectifier module D1 comprises input end and output terminal, and wherein input end comprises U pin, V pin and W pin, distinguishes the pin 4 of connecting fan port, pin 5 and pin 6; Output terminal comprises three phase rectifier module positive pole and three phase rectifier module negative;
Dual power supply module comprises storage battery (not shown, " BAT+ " represents the positive pole of storage battery), thyristor V23, the first reference diode V4 and the first resistance R15; Wherein, three phase rectifier module positive pole connects the positive pole of thyristor V23, and the negative pole of thyristor V23 connects the positive pole (i.e. BAT+) of storage battery; The positive pole of three phase rectifier module positive pole and storage battery is connected to power management module respectively; The positive pole of three phase rectifier module positive pole and storage battery is also connected to the negative pole of the first reference diode V4 respectively; The positive pole of the first reference diode V4 is by the first resistance R15 ground connection, and the positive pole of the first reference diode V4 is also connected to three phase rectifier module negative by the first resistance R15;
Low voltage disconnects module and comprises N-channel MOS pipe V9 and the second resistance R14; Wherein, the grid of N-channel MOS pipe V9 connects the positive pole V4 of the first reference diode, the drain electrode of N-channel MOS pipe V9 connects the positive pole of three phase rectifier module positive pole and storage battery respectively by the second resistance R14, the drain electrode of N-channel MOS pipe V9 is also connected to power management module; The grid of N-channel MOS pipe V9 and sources connected in parallel are in the two ends of the first resistance R15;
Power management module comprises integrated stable voltage circuit N1, the second reference diode V1 that a model is LM2576, inductance L 1 and one second electric capacity C1; Integrated stable voltage circuit N1 comprises pin 1, pin 2, pin 3, pin 4 and pin 5; Wherein, the pin 1 of integrated stable voltage circuit N1 connects the positive pole of three phase rectifier module positive pole and storage battery respectively, and the pin 5 of integrated stable voltage circuit N1 connects the drain electrode of N-channel MOS pipe V9; The pin 2 of integrated stable voltage circuit N1 connects the second reference diode V1 negative pole, the plus earth of the second reference diode V1; The pin 2 of integrated stable voltage circuit N1 is also successively by inductance L 1, second electric capacity C1 and by the minus earth of the second electric capacity C1; The positive pole of the pin 4 of integrated stable voltage circuit N1, inductance, the second electric capacity connects the DC electrical source of a 5V.
Particularly, in order to make circuit of the present utility model more stable, avoid occurring current reflux phenomenon, in the present embodiment, draught fan control circuit also comprises at least 4 diodes, i.e. diode V20, diode V2, diode V21, diode V22; The positive pole of three phase rectifier module cathode connecting diode V20, and be connected to the pin 1 of integrated stable voltage circuit and the negative pole of reference diode V4 respectively by the negative pole of diode V20; The positive pole of the cathode connecting diode V2 of storage battery, and be connected to the pin 1 of integrated stable voltage circuit and the negative pole of reference diode V4 respectively by the negative pole of diode V2; Resistance R15 connects the positive pole of diode V21, and passes through the minus earth of diode V21; Resistance R15 also connects the positive pole of diode V22, and is connected to three phase rectifier module negative by diode V22 negative pole.
The concrete principle of the draught fan control circuit that the present embodiment provides is as follows:
Dual power supply principle: blower fan port XS1 is connected on blower fan, the U of Ac, V and W carries out AC-DC converter through three phase rectifier module D1, direct current FJ+ is exported by three phase rectifier module output terminal, direct current FJ+ outputs to battery positive voltage BAT+ by silicon controlled rectifier tube module V23 on the one hand, direct current FJ+ is through counnter attack diode V20 on the other hand, BAT+ is connected to reference diode V4 negative pole through counnter attack diode V2, GND(and ground connection is arrived respectively after reference diode V4 and resistance R15) and three phase rectifier module negative (i.e. the negative pole of three phase rectifier module output terminal), as previously mentioned, in order to prevent electric current reverse, resistance R15 ground connection and be respectively equipped with diode V21 and diode V22 before being connected to three phase rectifier module negative, further, FJ+ and battery positive voltage provide working power respectively by the pin 1 being all connected to integrated stable voltage circuit N1 after counnter attack diode V20 and counnter attack diode V2 for it,
Low voltage disconnects principle: when the pin 5 of integrated stable voltage circuit N1 is low level, power management module work; When the pin 5 of integrated stable voltage circuit N1 is high level, power management module does not work; When between the grid of N-channel MOS pipe V9 and source electrode, voltage is greater than 5V (Vgs>5V), N-channel MOS pipe V9 conducting, the now drain electrode of N-channel MOS pipe V9 and source conduction, the 5th pin ground connection of integrated stable voltage circuit N1, for low level, power management module work; When between the grid of N-channel MOS pipe V9 and source electrode, voltage is less than 5V (Vgs<5V), N-channel MOS pipe V9 ends, the drain electrode that N-channel MOS pipe V9 ends and source electrode end, and the 5th pin of integrated stable voltage circuit N1 is high level, and power management module does not work.Reference diode V4 its voltage within the scope of reasonable back current is constant.
More specifically, when FJ+, BAT+ are greater than 42V, reference diode V4 pressure drop 36V, between the grid-source voltage of N-channel MOS pipe V9, namely Vgs voltage is about greater than 5V, N-channel MOS pipe V9 conducting, the pin 5 of integrated stable voltage circuit N1 is pulled to low level, power management module work, system works;
When FJ+, BAT+ are less than 42V, reference diode V4 pressure drop 36V, between the grid-source voltage of N-channel MOS pipe V9, namely Vgs voltage is about less than 5V, and N-channel MOS pipe V9 ends, and integrated stable voltage circuit N1 pin 5 is pulled to high level, integrated stable voltage circuit N1 does not work, and system does not work;
When FJ+, BAT+ have a recovery to be greater than 42V, reference diode pressure drop 36V, between the grid-source voltage of N-channel MOS pipe V9, namely Vgs voltage is about greater than 5V, N-channel MOS pipe V9 conducting, the pin 5 of integrated stable voltage circuit N1 is pulled to low level, power management module work, and system is resumed work automatically;
Particularly, in order to increase the stability of circuit, eliminate power supply fluctuation, be also connected with an electric capacity C3 at the 1st pin of integrated stable voltage circuit N1, the pin 1 of integrated stable voltage circuit N1 connects the positive pole of electric capacity C3, the minus earth of electric capacity C3.
More specifically, in the present embodiment, in order to make the whole structure of draught fan control circuit better, the model of three phase rectifier module D1 is 6RI50G-120, the model of thyristor V23 is MDK100-16, the model of N-channel MOS pipe V9 is IRFS3006, and the model of reference diode V4 is BZX84-A36, and the model of reference diode V1 is MBR360; The model of diode V20, diode V2, diode V21 and diode V22 is IN4007.
In the present embodiment, describe more details, but should be clear and definite, these details are only preferred embodiment of the present utility model, not be used for limiting the scope of the utility model patent, do not have these details, those skilled in the art also can realize the technical solution of the utility model according to the record in embodiment, reaches effect of the present utility model.Protection domain of the present utility model is as the criterion with claims and its equivalent transformation, is directly or indirectly used in the technical field that other are relevant, also should falls within scope of patent protection of the present utility model.
Claims (9)
1. a draught fan control circuit, comprise blower fan port, three phase rectifier module, dual power supply module, low voltage disconnection module and power management module, wherein, described blower fan port comprises pin 1, pin 2, pin 3 and pin 4; It is characterized in that: pin 1, the pin 2 of described blower fan port are connected with pin 3 is corresponding with U, V, W of the threephase AC that blower fan exports; In the inside of described blower fan port, pin 4 and pin 1 are connected, and pin 5 and pin 2 are connected, and pin 6 is communicated with pin 3; Described three phase rectifier module comprises input end and output terminal, and wherein said input end comprises U pin, V pin and W pin, connects the pin 4 of described blower fan port, pin 5 and pin 6 respectively; Described output terminal comprises three phase rectifier module positive pole and three phase rectifier module negative;
Described dual power supply module comprises storage battery, thyristor, the first reference diode and the first resistance; Wherein, described three phase rectifier module positive pole connects the positive pole of described thyristor, and the negative pole of described thyristor connects the positive pole of described storage battery; The positive pole of described three phase rectifier module positive pole and described storage battery is connected to described power management module respectively; The positive pole of described three phase rectifier module positive pole and described storage battery is also connected to the negative pole of described first reference diode respectively; The positive pole of described first reference diode is by described first resistance eutral grounding, and the positive pole of described first reference diode is also connected to three phase rectifier module negative by described first resistance;
Described low voltage disconnects module and comprises N-channel MOS pipe and the second resistance; Wherein, the grid of described N-channel MOS pipe connects the positive pole of described first reference diode, the drain electrode of described N-channel MOS pipe connects the positive pole of described three phase rectifier module positive pole and described storage battery respectively by described second resistance, the drain electrode of described N-channel MOS pipe is also connected to described power management module; The grid of described N-channel MOS pipe and sources connected in parallel are in the two ends of described first resistance;
Described energy supply control module comprises integrated stable voltage circuit, the second reference diode, inductance and one second electric capacity that a model is LM2576; Described integrated stable voltage circuit comprises pin 1, pin 2, pin 3, pin 4 and pin 5; Wherein, the pin 1 of described integrated stable voltage circuit connects the positive pole of described three phase rectifier module positive pole and described storage battery respectively, and the pin 5 of described integrated stable voltage circuit connects the drain electrode of described N-channel MOS pipe; The pin 2 of described integrated stable voltage circuit connects described second reference diode negative pole, the plus earth of described second reference diode; The pin 2 of described integrated stable voltage circuit is also successively by described inductance, described second electric capacity by the minus earth of described second electric capacity; The positive pole of the pin 4 of described integrated stable voltage circuit, described inductance, described second electric capacity connects a DC electrical source.
2. a kind of draught fan control circuit according to claim 1, is characterized in that: described dual power supply module also comprises the first diode, the second diode, the 3rd diode and the 4th diode; Wherein: described three phase rectifier module positive pole is connected to the pin 1 of described integrated stable voltage circuit by described first diode;
The positive pole of described storage battery is connected to the pin 1 of described integrated stable voltage circuit by described second diode;
Described first resistance is by described 4th diode ground connection;
Described second resistance also connects the pin 4 of described blower fan port by described 3rd diode.
3. a kind of draught fan control circuit according to claim 2, is characterized in that: described power management module also comprises the first electric capacity; The positive pole of described first electric capacity connects the negative pole of described first diode, the minus earth of described first electric capacity.
4. a kind of draught fan control circuit according to claim 2, is characterized in that: described three phase rectifier module comprise the three-phase rectifier that a model is 6RI50-120.
5. a kind of draught fan control circuit according to claim 2, is characterized in that: the model of described thyristor is MDK100-16.
6. a kind of draught fan control circuit according to claim 2, is characterized in that: the model of described N-channel MOS pipe is IRFS3006.
7. a kind of draught fan control circuit according to claim 2, is characterized in that: the model of described first reference diode is BZX84-A36.
8. a kind of draught fan control circuit according to claim 2, is characterized in that: the model of described second reference diode is MBR360.
9. a kind of draught fan control circuit according to claim 2, is characterized in that: the model of described first diode, described second diode, described 3rd diode and described 4th diode is IN4007.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448383.4U CN204061260U (en) | 2014-08-11 | 2014-08-11 | A kind of draught fan control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448383.4U CN204061260U (en) | 2014-08-11 | 2014-08-11 | A kind of draught fan control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204061260U true CN204061260U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420448383.4U Expired - Fee Related CN204061260U (en) | 2014-08-11 | 2014-08-11 | A kind of draught fan control circuit |
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| Country | Link |
|---|---|
| CN (1) | CN204061260U (en) |
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2014
- 2014-08-11 CN CN201420448383.4U patent/CN204061260U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20200811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |