CN212803690U - High-speed military single-phase axial flow fan drive controller - Google Patents
High-speed military single-phase axial flow fan drive controller Download PDFInfo
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- CN212803690U CN212803690U CN202021653635.9U CN202021653635U CN212803690U CN 212803690 U CN212803690 U CN 212803690U CN 202021653635 U CN202021653635 U CN 202021653635U CN 212803690 U CN212803690 U CN 212803690U
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Abstract
The utility model relates to an axial-flow fan control field, the technical scheme of adoption is: the utility model provides a high-speed military single-phase axial fan drive controller, is including the drive module, information acquisition module and the back electromotive force absorption circuit that are used for driving axial fan, information acquisition module links to each other with drive module, back electromotive force absorption circuit with drive module's drive output links to each other. The circuit design of the driving controller has the characteristics of reverse connection prevention of a power supply, high safety, high power amplification reaction speed, high reliability, low distortion rate, wide applicable frequency, wide applicable voltage range and the like.
Description
Technical Field
The utility model relates to an axial fan control field, concretely relates to high-speed for military use single-phase axial fan drive controller.
Background
The single-phase axial flow fan is a ventilation device with gas flowing parallel to a fan shaft, and is commonly applied to occasions with higher flow requirements and lower pressure requirements, a driving control circuit of the single-phase axial flow fan is generally of a civil fan, a fan and the like, a control mode mainly adopts a constant pressure and a constant speed, and the rotating speed is generally within 1 ten thousand; however, in some fields, the axial flow fan needs to meet the requirements of higher rotating speed and air volume and meet the requirements of adjustable voltage and adjustable speed by control, but a drive control circuit of a common civil fan or a fan cannot meet the requirements, and the axial flow fan can generate larger counter electromotive force when being started at high speed, so that components of the drive control circuit can be damaged.
Disclosure of Invention
An object of the utility model is to provide a high-speed for military use single-phase axial fan drive controller.
In order to realize the purpose of the utility model, the utility model adopts the technical proposal that: a high-speed military single-phase axial flow fan driving controller comprises a driving module for driving an axial flow fan, an information acquisition module and a back electromotive force absorption circuit, wherein the information acquisition module is connected with the driving module, and the back electromotive force absorption circuit is connected with a driving output end of the driving module;
the back electromotive force absorption circuit comprises a resistor R11, a resistor R12, a diode D5 and a diode D6, wherein the positive electrode end of the diode D5 is connected with the second end of the driving output of the driving module, the negative electrode end of the diode D5 is connected with the first end of the resistor R11, and the second end of the resistor R11 is connected with the first end of the driving output of the driving module; the positive end of the diode D6 is connected with the first end of the driving output of the driving module, the negative end of the diode D6 is connected with the first end of the two resistors R12, and the second end of the two resistors R12 is connected with the second end of the driving output of the driving module.
Preferably, drive module includes driver chip, full-bridge circuit, sampling circuit, hall detection circuit and speed governing circuit all link to each other with driver chip's input, driver chip's control end links to each other with full-bridge circuit, driver chip's sampling end links to each other with sampling circuit, sampling circuit establishes ties in full-bridge circuit.
Preferably, the speed regulation circuit comprises a resistor R5, a resistor R6 and a capacitor C8, a first end of the resistor R5 is a power input end, a second end of the resistor R5 is respectively connected with a first end of a resistor R6, a first end of a capacitor C8 and an input end of the driving chip, and second ends of the resistor R6 and the capacitor C8 are both grounded.
Preferably, the full-bridge circuit comprises a MOS transistor V2, a MOS transistor V3, a MOS transistor V4, a MOS transistor V5, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D3, a diode D4, a diode D7, a diode D8, and a diode D9; the first end of the MOS transistor V2 is connected with the first end of a resistor R7, and the second end of the resistor R7 is connected with the ninth pin of the driving chip;
the second end of the MOS tube V2 is respectively connected with the second end of the MOS tube V3, the positive end of the diode D3, the negative end of the diode D4 and the positive end of the diode D5;
the third end of the MOS transistor V2 is respectively connected with the third end of the MOS transistor V4, the cathode end of the diode D3 and the cathode end of the diode D7, and the third end of the MOS transistor V2 is a power supply input end;
the first end of the MOS tube V3 is connected with the first end of a resistor R8, the second end of the resistor R8 is connected with the tenth pin of the driving chip, and the third end of the MOS tube V3 is respectively connected with the sampling circuit and the third end of the MOS tube V5;
the first end of the MOS transistor V5 is connected with the first end of a resistor R10, and the second end of the resistor R10 is connected with the twelfth pin of the driving chip; the second end of the MOS tube V5 is respectively connected with the second end of the MOS tube V4, the positive end of the diode D7, the negative end of the diode D8 and the positive end of the diode D6;
the first end of the MOS transistor V4 is connected with the first end of a resistor R9, and the second end of the resistor R9 is connected with the eleventh pin of the driving chip;
the positive terminal of the diode D4 and the positive terminal of the diode D8 are both grounded.
Preferably, the sampling circuit comprises a resistor R13, a resistor R14, a resistor R15, a resistor R16 and a capacitor C10, and first ends of the resistor R13, the resistor R14, the resistor R15, the resistor R16 and the capacitor C10 are all connected to a thirteenth pin of the driver chip and a third end of the MOS transistor V3; and second ends of the resistor R13, the resistor R14, the resistor R15, the resistor R16 and the capacitor C10 are all grounded.
Preferably, the information acquisition module comprises a processor and an output interface circuit, and the output interface circuit and the driving module are both connected with the processor.
Preferably, the power supply further comprises a power supply module, the power supply module comprises a power supply conversion circuit and a power supply reverse connection prevention circuit, the input end of the power supply reverse connection prevention circuit is a power supply access end, and the output end of the power supply reverse connection prevention circuit is connected with the input end of the power supply conversion circuit.
The beneficial effects of the utility model are concentrated and are embodied in: the utility model has simple and reliable circuit and small volume, on one hand, the integrated chip is utilized, and the peripheral circuit can be reduced; on the other hand, the MCU is utilized to output a control signal, thereby facilitating the debugging of a user; secondly, a full-bridge circuit is adopted to realize power amplification; the circuit design of the driving controller has the characteristics of reverse connection prevention of a power supply, high safety, high power amplification reaction speed, high reliability, low distortion rate, wide applicable frequency, wide applicable voltage range and the like.
Drawings
FIG. 1 is a block diagram of the overall circuit of the present invention;
fig. 2 is a circuit diagram of the power module of the present invention;
fig. 3 is a circuit diagram of the driving module of the present invention;
fig. 4 the utility model discloses information acquisition module circuit diagram.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, a high-speed military single-phase axial flow fan driving controller includes a driving module for driving an axial flow fan, an information collecting module, a back electromotive force absorbing circuit and a power module, wherein the information collecting module is connected with the driving module, the back electromotive force absorbing circuit is connected with a driving output end of the driving module, and the power module provides a working power supply for the driving controller;
specifically, as shown in fig. 3, the back electromotive force absorption circuit includes a resistor R11, a resistor R12, a diode D5, and a diode D6, wherein the positive terminal of the diode D5 is connected to the second terminal of the driving output of the driving module, the negative terminal of the diode D5 is connected to the first terminal of the resistor R11, and the second terminal of the resistor R11 is connected to the first terminal of the driving output of the driving module; the positive terminal of the diode D6 is connected with the first end of the drive output of the drive module, the negative terminal of the diode D6 is connected with the first end of the two resistors R12, the second end of the two resistors R12 is connected with the second end of the drive output of the drive module, and the resistors R11, R12, the diode D5 and the diode D6 are arranged to prevent the brushless motor from generating overlarge back electromotive force to damage the drive module, so that the reliability and the safety of the circuit are improved.
As shown in fig. 2, the power supply module includes a power supply conversion circuit and a power supply reverse connection prevention circuit, the power supply reverse connection prevention circuit is used for protecting a rear-stage circuit from being damaged by an input reverse voltage, and the power supply conversion circuit is used for converting and filtering an input power supply voltage to improve the stability of an output voltage; the power supply anti-reverse connection circuit comprises a diode D1 and a polar capacitor C1, the power supply conversion module comprises a power supply chip V1, a polar capacitor C2, a polar capacitor C3, a polar capacitor C4, a capacitor C9 and a diode D2, the positive end of the diode D1 is an input power supply positive end, the negative end of the diode D1 is respectively connected with the positive end of the polar capacitor C1, the positive end of the polar capacitor C2, the positive end of the polar capacitor C3, the first end of the diode D2 and the third end (IN) of the power supply chip V1, the first end (OUT) of the power supply chip V1 is respectively connected with the positive end of the polar capacitor C4 and the first end of the capacitor C9, and the voltage output by the first end (OUT) of the power supply chip V1 is + 5V;
the negative electrode end of the polar capacitor C1, the negative electrode end of the polar capacitor C2, the negative electrode end of the polar capacitor C3, the negative electrode end of the polar capacitor C4, the second end of the diode D2, the second end of the capacitor C9, the second end of the power chip V1 and the fourth end of the power chip V1 are all grounded.
Further, the drive module includes driver chip U3, full-bridge circuit, sampling circuit, hall detection circuit and speed governing circuit, in this embodiment, the preferred BP6108F chip that adopts of driver chip U3, hall detection circuit and speed governing circuit all link to each other with driver chip U3's input, driver chip U3's control end links to each other with full-bridge circuit, driver chip U3's sampling end links to each other with sampling circuit, sampling circuit establishes ties in full-bridge circuit, and driver chip U3 control end is output in turn, and then control full-bridge circuit drive DC brushless motor rotates, and speed governing circuit realizes speed control through the input signal voltage who changes driver chip.
Specifically, as shown in fig. 4, the speed regulation circuit includes a resistor R5, a resistor R6, and a capacitor C8, a first end of the resistor R5 is a power input end and is connected to a negative end of a diode D1 of the power module, a second end of the resistor R5 is respectively connected to a first end of a resistor R6, a first end of a capacitor C8, and a second pin ADJ of the driving chip U3, and second ends of the resistor R6 and the capacitor C8 are both grounded, in this embodiment, by adjusting resistance values of the resistor R5 and the resistor R6, the resistor R5 or the resistor R6 may adopt a potentiometer, which is convenient to adjust, and changes a voltage value input to the second pin ADJ of the driving chip U3, so as to adjust a rotation speed of the axial flow fan.
The full-bridge circuit comprises an MOS tube V2, an MOS tube V3, an MOS tube V4, an MOS tube V5, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D3, a diode D4, a diode D7, a diode D8 and a diode D9; a first end of the MOS transistor V2 is connected with a first end of a resistor R7, and a second end of the resistor R7 is connected with a ninth pin PI of a driving chip U3;
the second end of the MOS tube V2 is respectively connected with the second end of the MOS tube V3, the positive end of the diode D3, the negative end of the diode D4 and the positive end of the diode D5;
the third end of the MOS transistor V2 is respectively connected with the third end of the MOS transistor V4, the cathode end of the diode D3 and the cathode end of the diode D7, and the third end of the MOS transistor V2 is a power input end and is connected with the cathode end of the diode D1 of the power module;
the first end of the MOS tube V3 is connected with the first end of a resistor R8, the second end of the resistor R8 is connected with a tenth pin NI of a drive chip U3, and the third end of the MOS tube V3 is respectively connected with a sampling circuit and the third end of the MOS tube V5;
the first end of the MOS transistor V5 is connected with the first end of a resistor R10, and the second end of the resistor R10 is connected with a pin N2 of a twelfth transistor of a drive chip U3; the second end of the MOS tube V5 is respectively connected with the second end of the MOS tube V4, the positive end of the diode D7, the negative end of the diode D8 and the positive end of the diode D6;
the first end of the MOS transistor V4 is connected with the first end of a resistor R9, and the second end of the resistor R9 is connected with a pin P2 of an eleventh transistor U3 of a driving chip U3;
the positive terminal of the diode D4 and the positive terminal of the diode D8 are both grounded.
Furthermore, the sampling circuit comprises a resistor R13, a resistor R14, a resistor R15, a resistor R16 and a capacitor C10, wherein first ends of the resistor R13, the resistor R14, the resistor R15, the resistor R16 and the capacitor C10 are connected with a thirteenth pin CS + of the driving chip U3 and a third end of the MOS transistor V3; the second ends of the resistor R13, the resistor R14, the resistor R15, the resistor R16 and the capacitor C10 are all grounded, the working current of the axial flow fan is monitored through a thirteenth pin CS + of the driving chip U3, if the working current of the axial flow fan exceeds a set value, the driving signal of the driving chip U3 stops outputting, the MOS tube V2, the MOS tube V3, the MOS tube V4 and the MOS tube V5 are all closed, the axial flow fan stops working, and the safety of the operation of the axial flow fan is improved.
As shown in fig. 4, the hall detection circuit includes a hall sensor U2, a resistor R3, a resistor R4, and a capacitor C7, and the hall sensor U2 preferably adopts an MA7020 chip; the information acquisition module comprises a processor U1 and an output interface circuit, the processor preferably adopts STM32 series single chips, wherein a resistor R2 and a capacitor C6 form a reset circuit of the processor, the resistor R1 and the capacitor C5 form the output interface circuit, the first end of the resistor R1 is connected with a PB3 pin of the processor U1, the second end of the resistor R1 is connected with the first end of the capacitor C5, the second end of the capacitor C5 is grounded, and the common end of the resistor R1 and the capacitor C5 is an output interface;
a PB4 pin of the processor U1 is connected with a first end of a resistor R3, a second pin of the resistor R3 is respectively connected with a first end of a resistor R4, a first end of a capacitor C7, a third end (OUT) of a Hall sensor U2 and a sixth end (HA +) of a driving chip U3, and a second end of the resistor R4 and a first end (VIN) of a Hall sensor U2 are both connected with a first end (OUT) of a power supply chip V1 of the power supply module; the Hall sensor detects the commutation moment of the direct current brushless fan, the processor collects signals output by the Hall sensor to calculate the rotating speed of the fan, and the output interface outputs rotating speed information, so that a user can debug the axial flow fan conveniently.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.
Claims (7)
1. The utility model provides a high-speed military single-phase axial fan drive controller which characterized in that: the system comprises a driving module for driving an axial flow fan, an information acquisition module and a back electromotive force absorption circuit, wherein the information acquisition module is connected with the driving module, and the back electromotive force absorption circuit is connected with a driving output end of the driving module;
the back electromotive force absorption circuit comprises a resistor R11, a resistor R12, a diode D5 and a diode D6, wherein the positive electrode end of the diode D5 is connected with the second end of the driving output of the driving module, the negative electrode end of the diode D5 is connected with the first end of the resistor R11, and the second end of the resistor R11 is connected with the first end of the driving output of the driving module; the positive end of the diode D6 is connected with the first end of the driving output of the driving module, the negative end of the diode D6 is connected with the first end of the two resistors R12, and the second end of the two resistors R12 is connected with the second end of the driving output of the driving module.
2. The high-speed military single-phase axial flow fan drive controller of claim 1, wherein: the drive module comprises a drive chip, a full-bridge circuit, a sampling circuit, a Hall detection circuit and a speed regulation circuit, wherein the Hall detection circuit and the speed regulation circuit are connected with the input end of the drive chip, the control end of the drive chip is connected with the full-bridge circuit, the sampling end of the drive chip is connected with the sampling circuit, and the sampling circuit is connected in the full-bridge circuit in series.
3. The high-speed military single-phase axial flow fan drive controller of claim 2, wherein: the speed regulation circuit comprises a resistor R5, a resistor R6 and a capacitor C8, wherein the first end of the resistor R5 is a power input end, the second end of the resistor R5 is connected with the first end of the resistor R6, the first end of the capacitor C8 and the input end of the driving chip respectively, and the second ends of the resistor R6 and the capacitor C8 are both grounded.
4. The high-speed military single-phase axial flow fan drive controller of claim 2, wherein: the full-bridge circuit comprises an MOS tube V2, an MOS tube V3, an MOS tube V4, an MOS tube V5, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a diode D3, a diode D4, a diode D7, a diode D8 and a diode D9; the first end of the MOS transistor V2 is connected with the first end of a resistor R7, and the second end of the resistor R7 is connected with the ninth pin of the driving chip;
the second end of the MOS tube V2 is respectively connected with the second end of the MOS tube V3, the positive end of the diode D3, the negative end of the diode D4 and the positive end of the diode D5;
the third end of the MOS transistor V2 is respectively connected with the third end of the MOS transistor V4, the cathode end of the diode D3 and the cathode end of the diode D7, and the third end of the MOS transistor V2 is a power supply input end;
the first end of the MOS tube V3 is connected with the first end of a resistor R8, the second end of the resistor R8 is connected with the tenth pin of the driving chip, and the third end of the MOS tube V3 is respectively connected with the sampling circuit and the third end of the MOS tube V5;
the first end of the MOS transistor V5 is connected with the first end of a resistor R10, and the second end of the resistor R10 is connected with the twelfth pin of the driving chip; the second end of the MOS tube V5 is respectively connected with the second end of the MOS tube V4, the positive end of the diode D7, the negative end of the diode D8 and the positive end of the diode D6;
the first end of the MOS transistor V4 is connected with the first end of a resistor R9, and the second end of the resistor R9 is connected with the eleventh pin of the driving chip;
the positive terminal of the diode D4 and the positive terminal of the diode D8 are both grounded.
5. The high-speed military single-phase axial flow fan drive controller of claim 4, wherein: the sampling circuit comprises a resistor R13, a resistor R14, a resistor R15, a resistor R16 and a capacitor C10, wherein the first ends of the resistor R13, the resistor R14, the resistor R15, the resistor R16 and the capacitor C10 are connected with the thirteenth pin of the driving chip and the third end of the MOS transistor V3; and second ends of the resistor R13, the resistor R14, the resistor R15, the resistor R16 and the capacitor C10 are all grounded.
6. The high-speed military single-phase axial flow fan drive controller of claim 1, wherein: the information acquisition module comprises a processor and an output interface circuit, and the output interface circuit and the driving module are connected with the processor.
7. The high-speed military single-phase axial flow fan drive controller of claim 1, wherein: the power supply module comprises a power supply conversion circuit and a power supply reverse connection prevention circuit, the input end of the power supply reverse connection prevention circuit is a power supply access end, and the output end of the power supply reverse connection prevention circuit is connected with the input end of the power supply conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021653635.9U CN212803690U (en) | 2020-08-10 | 2020-08-10 | High-speed military single-phase axial flow fan drive controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021653635.9U CN212803690U (en) | 2020-08-10 | 2020-08-10 | High-speed military single-phase axial flow fan drive controller |
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| Publication Number | Publication Date |
|---|---|
| CN212803690U true CN212803690U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021653635.9U Active CN212803690U (en) | 2020-08-10 | 2020-08-10 | High-speed military single-phase axial flow fan drive controller |
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| Country | Link |
|---|---|
| CN (1) | CN212803690U (en) |
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- 2020-08-10 CN CN202021653635.9U patent/CN212803690U/en active Active
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