CN203926093U - The integrated control device of DC fan - Google Patents
The integrated control device of DC fan Download PDFInfo
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- CN203926093U CN203926093U CN201420313484.0U CN201420313484U CN203926093U CN 203926093 U CN203926093 U CN 203926093U CN 201420313484 U CN201420313484 U CN 201420313484U CN 203926093 U CN203926093 U CN 203926093U
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- fan
- chip circuit
- circuit
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Abstract
A kind of integrated control device of DC fan, comprise power circuit, single chip circuit, DC fan, single chip circuit, DC fan is electrically connected with power circuit, also comprise the vector control engine chip circuit being electrically connected with power circuit, integrated power chip circuit, vector control engine chip circuit while and single chip circuit, the electrical connection of integrated power chip circuit, integrated power chip circuit is electrically connected with DC fan simultaneously, integrated power chip circuit is for gathering, the signal of feedback DC fan also drives DC fan to rotate, vector control engine chip circuit is for receiving the order of single chip circuit and according to the collection of integrated power chip circuit, the rotating speed of the Signal Regulation DC fan of feedback, DC fan is without control panel blower fan, executive capability and the etherealize of single chip circuit MCU are improved greatly, meet the comprehensive power of direct current brushless motor, electric current, the monitoring of rotating speed and visual.
Description
Technical field
The utility model relates to a kind of integrated control device of DC fan, is particularly applicable to the DC fan in gas water-heater field.
Background technique
At present, in existing large flow forced exhausting gas water heater technology, the main whole rotating speed using scope of principal voltage amplitude modulation speed regulating control DC fan that still adopts, principal voltage amplitude modulation speed governing is by closed loop BUCK ON-OFF control circuit, buffer amplifier circuit composition, wherein closed loop BUCK ON-OFF control circuit includes again switching tube, energy storage power inductance, afterflow Schottky diode, the emitter of switching tube is connected with buffer amplifier circuit resistance, switching tube base stage is connected with buffer amplifier circuit resistance, the collector electrode of switching tube is connected with one end of energy storage power inductance and the negative pole of afterflow Schottky diode, the plus earth of afterflow Schottky diode, the other end of energy storage power inductance is connected with DC fan.Single-chip microcomputer is given certain PWM value by buffer amplifier circuit and principal voltage amplitude modulation alignment circuit, drives DC fan to move with stabilized (steady-state) speed, reaches variable voltage control object.Component number is many, causes whole DC fan control circuit complex structure, and circuit board size is large.
Because switch is large electric current PNP power tube or P type field effect transistor, the height of controlling cost, and the performance of batch property is difficult to ensure conformity; Energy storage power inductance is easily subject to the impact of magnetic material, poor reliability.
The DC fan of the principal voltage amplitude modulation speed governing of integrate control board, the necessary configuration control board of blower fan itself, cost is higher, and reaches speed-raising increasing wind DeGrain by constant voltage closed loop control.In the computing of constant voltage closed loop control, adopt a large amount of software algorithms and calculation operations time, reduced greatly the executive capability of master controller single-chip microprocessor MCU, cannot realize power and monitor in real time.
For overcoming above-mentioned defect, to developing without the control gear of control panel DC fan.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of integrated control device of DC fan, by separating the original control panel mode that carries of DC fan, the mode of high integration of compact modulation conformity in master controller single-chip microprocessor MCU again, direct current brushless motor is simplified the structure, the high integrated modular of main device single-chip microprocessor MCU processed, miniaturization, high efficiency, reduce a large amount of software model algorithm and operation time of master controller single chip circuit MCU, executive capability and the etherealize of single chip circuit MCU are improved greatly, meet the comprehensive power of direct current brushless motor, electric current, the monitoring of rotating speed and visual.
The technological scheme that the utility model solves its technical problem employing is: comprise power circuit, single chip circuit, DC fan, single chip circuit, DC fan is electrically connected with power circuit, also comprise the vector control engine chip circuit being electrically connected with power circuit, integrated power chip circuit, vector control engine chip circuit while and single chip circuit, the electrical connection of integrated power chip circuit, integrated power chip circuit is electrically connected with DC fan simultaneously, integrated power chip circuit is for gathering, the signal of feedback DC fan also drives DC fan to rotate, vector control engine chip circuit is for receiving the order of single chip circuit and according to the collection of integrated power chip circuit, the rotating speed of the Signal Regulation DC fan of feedback, DC fan is without control panel blower fan.
Also comprise the current sampling circuit being electrically connected with power circuit, linear amplification and eliminator, the input end of current sampling circuit is electrically connected with the current output terminal of integrated power chip circuit, linear amplification and the input end of eliminator and the output terminal of current sampling circuit is electrically connected, output terminal is electrically connected with the input end of vector control engine chip circuit.
Described power circuit is switch power, and output voltage is direct current safety voltage.
Described single chip circuit has I2C or SPI communication or serial communication function, and single-chip microcomputer is PIC16 series or MEGA16 series or MB95F870 series or RL78 series.
Described vector control engine chip circuit has coordinate axis transform control, phase transformation control, proportional integral PI control, motor PWM control, ADC conversion function, and vector control engine chip is TMPM370 series.
Described integrated power chip circuit has full-bridge and drives, has overvoltage, overcurrent, overheat protector function, and driving current is less than or equal to 3A, and integrated power chip is TPD4135K.
Operational amplifier in described linearity amplification and eliminator is LM358 series.
The resistance of the sample-power resistance in described current sampling circuit is less than or equal to 3 Ω.
Described DC fan is three-phase y connection direct current brushless motor, and power is less than or equal to 75W.
The utility model is compared produced beneficial effect with background technique: comprise power circuit because the utility model adopts, single chip circuit, DC fan, single chip circuit, DC fan is electrically connected with power circuit, also comprise the vector control engine chip circuit being electrically connected with power circuit, integrated power chip circuit, vector control engine chip circuit while and single chip circuit, the electrical connection of integrated power chip circuit, integrated power chip circuit is electrically connected with DC fan simultaneously, integrated power chip circuit is for gathering, the signal of feedback DC fan also drives DC fan to rotate, vector control engine chip circuit is for receiving the order of single chip circuit and according to the collection of integrated power chip circuit, the rotating speed of the Signal Regulation DC fan of feedback, DC fan is the scheme without control panel blower fan, by separating the original control panel mode that carries of DC fan, the mode of high integration of compact modulation conformity in master controller single-chip microprocessor MCU again, direct current brushless motor is simplified the structure, the high integrated modular of main device single-chip microprocessor MCU processed, miniaturization, high efficiency, reduce a large amount of software model algorithm and operation time of master controller single chip circuit MCU, executive capability and the etherealize of single chip circuit MCU are improved greatly, meet the comprehensive power of direct current brushless motor, electric current, the monitoring of rotating speed and visual.
Brief description of the drawings
Fig. 1 is connection block diagram of the present utility model;
Fig. 2 is the circuit connection diagram of Fig. 1.
Embodiment
Referring to accompanying drawing 1, accompanying drawing 2, the present embodiment comprises power circuit 1, single chip circuit 2, vector control engine chip circuit 3, integrated power chip circuit 4, DC fan 7, power circuit 1 is single chip circuit 2, vector control engine chip circuit 3, integrated power chip circuit 4, DC fan 7 provides power supply, 3 whiles and single chip circuit 2 of vector control engine chip circuit, integrated power chip circuit 4 is electrically connected, integrated power chip circuit 4 is electrically connected with DC fan 7 simultaneously, integrated power chip circuit 4 is for gathering, the signal of feedback DC fan 7 also drives DC fan 7 to rotate, vector control engine chip circuit 3 is for receiving the order of single chip circuit and gathering according to integrated power chip circuit 4, the rotating speed of the Signal Regulation DC fan of feedback, DC fan 7 is that two-phase is above without control panel blower fan.
Preferably, it also comprises the current sampling circuit 6 being electrically connected with power circuit 1, linear amplification and eliminator 5, the input end of current sampling circuit 6 is electrically connected with the current output terminal of integrated power chip circuit 4, and the input end of linear amplification and eliminator 5 is electrically connected with the output terminal of current sampling circuit 6, output terminal is electrically connected with the input end of vector control engine chip circuit 3.Current sampling circuit 6 detects integrated power chip circuit 4 real-time current of DC fan 9 is sent to vector control engine chip circuit 3 after linearity amplification and eliminator 5, vector control engine chip circuit 3 can be actual according to adjusting more more accurately of predetermined current value and actual current value PWM output signal, DC fan 7 is moved more stable.
Further, described power circuit 1 is switch power, and output voltage is direct current safety voltage, can be 10V-42V, as 10V, 12V, 24V, 36V, 40V, 42V, ensures the Electrical Safety of each circuit.
Preferably, described single chip circuit 2 has I2C or SPI communication or serial communication function, and single-chip microcomputer is PIC16 series or MEGA16 series or MB95F870 series or RL78 series.
Described vector control engine chip circuit 3 is highly integrated, there is coordinate axis transform control, phase transformation control, proportional integral PI control, motor PWM control, ADC conversion function, capable of regulating power scope 5-75W, as 5W, 10W, 20W, 30W, 50W, 75W, can realize permanent power closed loop control, vector control engine chip is TMPM370 series, as TMPM370, TMPM372, TMPM373, TMPM374, TMPM375.
Described integrated power chip circuit 4 has full-bridge and drives, has overvoltage, overcurrent, overheat protector function, and driving current is less than or equal to 3A, if 1A, 2A, 3A integrated power chip are TPD4135K.
Operational amplifier in described linearity amplification and eliminator 5 is LM358 series.
The resistance of the sample-power resistance in described current sampling circuit 6 is less than or equal to 3 Ω, can be 1 Ω, 2 Ω, 3 Ω.
Described DC fan 7 is three-phase y connection direct current brushless motor, and without band control panel, power is less than or equal to 75W, can be 10W, 20W, 30W, 50W, 75W.
Single chip circuit 2 is by setting up both-way communication with vector control engine chip circuit 3, single chip circuit 2 provides a performance number, vector control engine chip circuit 3 receives this performance number and automatically controls the rotating speed of DC fan 7 in conjunction with integrated power chip circuit 4, make it remain on above-mentioned performance number work, because vector control engine chip circuit 3 and integrated power chip circuit 4 are all high integrated chips, can utilize separately in house software to form closed loop, 2 of single chip circuits need to send order, adopt communication instruction way to manage directly to call the power parameter value that vector control engine chip circuit 3 calculates, do not need concrete parameter setting and the related operation that carry out, on DC fan 7, do not need configuration circuit plate.
DC fan 7 in the present embodiment is three direct current brushless motors, vector control engine chip circuit 3 receives after the power command of single chip circuit 2, be connected with integrated power chip circuit 4 three phase full bridge PWM inlet openings by inner three phase full bridge PWM output interface, three phase full bridge circuit output end of integrated power chip circuit 4 is connected with DC fan 7 motor windings, integrated power chip circuit 4 gathers the each phase current of DC fan 7 and voltage simultaneously, feedback, in the time that the actual value detecting is different from predefined value, vector control engine chip circuit 3 utilizes inner vector control computing, ADC transducer, pwm circuit and electric current, voltage, the pwm signal that the mathematical model software data of rotating speed calculates actual demand is laid equal stress on and is newly sent to integrated power chip circuit 4, and then realize permanent power control, reach the object of controlling rotation speed of fan.
By separating the mode of direct current brushless motor control panel, direct current brushless motor simplifies the structure, make the high integrated modular of single-chip microcomputer, miniaturization, high efficiency, 2 software model algorithm and operation times of single chip circuit are reduced in a large number, employing communication instruction calls, also improve greatly executive capability and the etherealize of single chip circuit MCU, met monitoring to the comprehensive power of DC fan 7, electric current, rotating speed and visual.
Claims (9)
1. the integrated control device of a DC fan, comprise power circuit (1), single chip circuit (2), DC fan (7), single chip circuit (2), DC fan (7) is electrically connected with power circuit (1), characterized by further comprising the vector control engine chip circuit (3) being electrically connected with power circuit (1), integrated power chip circuit (4), vector control engine chip circuit (3) while and single chip circuit (2), integrated power chip circuit (4) electrical connection, integrated power chip circuit (4) is electrically connected with DC fan (7) simultaneously, integrated power chip circuit (4) is for gathering, the signal of feedback DC fan (7) also drives DC fan (7) to rotate, vector control engine chip circuit (3) is for receiving the order of single chip circuit (2) and gathering according to integrated power chip circuit (4), the rotating speed of the Signal Regulation DC fan of feedback, DC fan (7) is without control panel blower fan.
2. the integrated control device of DC fan according to claim 1, characterized by further comprising the current sampling circuit (6) being electrically connected with power circuit (1), linear amplification and eliminator (5), the input end of current sampling circuit (6) is electrically connected with the current output terminal of integrated power chip circuit (4), and the input end of linear amplification and eliminator (5) is electrically connected with the output terminal of current sampling circuit (6), output terminal is electrically connected with the input end of vector control engine chip circuit (3).
3. the integrated control device of DC fan according to claim 1 and 2, is characterized in that described power circuit (1) is for switch power, and output voltage is direct current safety voltage.
4. the integrated control device of DC fan according to claim 1 and 2, it is characterized in that described single chip circuit (2) has I2C or SPI communication or serial communication function, single-chip microcomputer is PIC16 series or MEGA16 series or MB95F870 series or RL78 series.
5. the integrated control device of DC fan according to claim 1 and 2, it is characterized in that described vector control engine chip circuit (3) has coordinate axis transform control, phase transformation control, proportional integral PI control, motor PWM control, ADC conversion function, vector control engine chip is TMPM370 series.
6. the integrated control device of DC fan according to claim 1 and 2; it is characterized in that described integrated power chip circuit (4) has full-bridge and drives, has overvoltage, overcurrent, overheat protector function; driving current is less than or equal to 3A, and integrated power chip is TPD4135K.
7. the integrated control device of DC fan according to claim 2, is characterized in that the operational amplifier in described linearity amplification and eliminator (5) is LM358 series.
8. the integrated control device of DC fan according to claim 2, is characterized in that the resistance of the sample-power resistance in described current sampling circuit (6) is less than or equal to 3 Ω.
9. the integrated control device of DC fan according to claim 1 and 2, is characterized in that described DC fan (7) is three-phase y connection direct current brushless motor, and power is less than or equal to 75W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420313484.0U CN203926093U (en) | 2014-06-13 | 2014-06-13 | The integrated control device of DC fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420313484.0U CN203926093U (en) | 2014-06-13 | 2014-06-13 | The integrated control device of DC fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926093U true CN203926093U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420313484.0U Withdrawn - After Issue CN203926093U (en) | 2014-06-13 | 2014-06-13 | The integrated control device of DC fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047881A (en) * | 2014-06-13 | 2014-09-17 | 佛山市顺德万和电气配件有限公司 | Integration control device for direct current fan |
-
2014
- 2014-06-13 CN CN201420313484.0U patent/CN203926093U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047881A (en) * | 2014-06-13 | 2014-09-17 | 佛山市顺德万和电气配件有限公司 | Integration control device for direct current fan |
| CN104047881B (en) * | 2014-06-13 | 2016-08-03 | 佛山市顺德万和电气配件有限公司 | The integrated control device of DC fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |