CN211573834U - Frequency conversion direct current brushless non-inductive electric fan with wireless remote control - Google Patents
Frequency conversion direct current brushless non-inductive electric fan with wireless remote control Download PDFInfo
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- CN211573834U CN211573834U CN202020094536.5U CN202020094536U CN211573834U CN 211573834 U CN211573834 U CN 211573834U CN 202020094536 U CN202020094536 U CN 202020094536U CN 211573834 U CN211573834 U CN 211573834U
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Abstract
The utility model discloses a take wireless remote control's brushless noninductive electric fan of frequency conversion direct current, include: the system comprises an MCU microcomputer control unit, a voltage detection unit, an AC-to-DC 24V voltage stabilization unit, a DC-DC voltage stabilization 5V unit, an RF wireless module extension unit, a line control speed regulation unit, a sound prompt unit and a brushless motor drive unit; the MCU microcomputer control unit is respectively connected with the voltage detection unit, the DC-DC voltage stabilization 5V unit, the line control speed regulation unit and the brushless motor driving unit. The utility model has the advantages of accurate voltage monitoring, the electrodeless speed governing of drive-by-wire, wireless radio frequency remote control, overcurrent protection, locked rotor protection, short-circuit protection, the operation has audible cue, and is energy-conserving, the silence, high rotational speed non-maintaining brushless non-inductive motor drive can set to regularly close through the remote controller, the cotton mode of sleeping, the electrodeless speed governing of PWM frequency conversion such as operating mode, wind-force is more even, user experience is better.
Description
Technical Field
The utility model relates to a household electrical appliances field especially relates to a take wireless remote control's brushless noninductive electric fan of frequency conversion direct current.
Background
The main part of the alternating current motor fan is an alternating current motor, the working principle of the alternating current motor fan is that an electrified coil is stressed in a magnetic field to rotate electric energy and convert the electric energy into mechanical energy to drive fan blades to rotate, so that the purpose of accelerating air circulation is achieved, and the alternating current motor fan is mainly used for cooling and relieving summer heat and circulating air.
The existing electric fan uses an alternating current motor, needs to be distinguished by fixed voltage AC110V or AC220V, and has the defects of large heating of the alternating current motor, low conversion efficiency, higher noise, uneven gear wind power, basically no remote control function and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a frequency conversion direct current brushless non-inductive electric fan with wireless remote control.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a frequency conversion direct current brushless noninductive electric fan with wireless remote control comprises: the system comprises an MCU microcomputer control unit, a voltage detection unit, an AC-to-DC 24V voltage stabilization unit, a DC-DC voltage stabilization 5V unit, an RF wireless module extension unit, a line control speed regulation unit, a sound prompt unit and a brushless motor drive unit; the MCU microcomputer control unit is respectively connected with the voltage detection unit, the DC-DC voltage stabilization 5V unit, the line control speed regulation unit and the brushless motor drive unit, the voltage detection unit is further connected with the AC-to-DC 24V voltage stabilization unit, the DC-DC voltage stabilization 5V unit is further respectively connected with the AC-to-DC 24V voltage stabilization unit and the RF wireless module extension unit, the line control speed regulation unit is further respectively connected with the RF wireless module extension unit and the sound prompt unit, and the sound prompt unit is further connected with the brushless motor drive unit.
Preferably, the model of the MCU microcomputer control unit is an FU6831 singlechip.
Preferably, the brushless motor driving unit includes driving MOS transistors Q4, Q5, Q6, Q7, Q8, Q9, and the driving MOS transistors Q4 and Q5, Q6 and Q7, and Q8 and Q9 are connected in series and then in parallel, respectively.
Preferably, the brushless motor driving unit further includes a short-circuit protection resistor RS 1.
Preferably, the voltage detection unit comprises resistors R48 and R54 and a capacitor C36, one end of the resistor R48 is connected with a power supply, the other end of the resistor R48 is connected with the MCU microcomputer control unit and the ground through R54 and R55, and the end of the resistor R54 connected with the MCU microcomputer control unit is also connected with the ground through a capacitor C36.
Preferably, the wire control speed regulation unit is a stepless speed regulation potentiometer.
Preferably, the wire control speed regulation unit comprises a potentiometer VR1, a wire holder VR, a resistor R31, R32, R33 and a capacitor C24, the potentiometer VR1 is connected with the resistors R31, R32 and R33 through the wire holder VR respectively, the other end of the resistor R31 is connected with a power supply, the other end of the resistor R32 is grounded, the other end of the resistor R33 is connected with the MCU microcomputer control unit, and one end of the resistor R33 connected with the MCU microcomputer control unit is also grounded through the capacitor C24.
Preferably, the maximum resistance of the potentiometer VR1 is 10k ohms.
To sum up, take wireless remote control's brushless noninductive electric fan of frequency conversion direct current have accurate voltage monitoring, the electrodeless speed governing of drive-by-wire, wireless radio frequency remote control, overcurrent protection, locked-rotor protection, short-circuit protection, the operation has audible cue, energy-conservation, silence, high rotational speed non-maintaining brushless noninductive motor drive can set to regularly closing through the remote controller, the cotton mode of sleeping, the electrodeless speed governing of PWM frequency conversion such as mode of operation, wind-force is more even, user experience advantage such as better.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic circuit diagram of the MCU microcomputer control unit of the present invention;
fig. 3 is a schematic circuit diagram of the AC-to-DC 24V voltage stabilization unit of the present invention;
fig. 4 is a schematic circuit diagram of the voltage detection unit and the brushless motor driving unit according to the present invention;
fig. 5 is a schematic circuit diagram of the DC-DC voltage stabilization 5V unit, the RF wireless module extension unit, the line control speed regulation unit, and the voice prompt unit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1-5, the utility model provides a take wireless remote control's frequency conversion direct current brushless noninductive electric fan, include: the system comprises an MCU microcomputer control unit, a voltage detection unit, an AC-to-DC 24V voltage stabilization unit, a DC-DC voltage stabilization 5V unit, an RF wireless module extension unit, a line control speed regulation unit, a sound prompt unit and a brushless motor drive unit; the MCU microcomputer control unit is respectively connected with the voltage detection unit, the DC-DC voltage stabilization 5V unit, the line control speed regulation unit and the brushless motor drive unit, the voltage detection unit is further connected with the AC-to-DC 24V voltage stabilization unit, the DC-DC voltage stabilization 5V unit is further respectively connected with the AC-to-DC 24V voltage stabilization unit and the RF wireless module extension unit, the line control speed regulation unit is further respectively connected with the RF wireless module extension unit and the sound prompt unit, and the sound prompt unit is further connected with the brushless motor drive unit.
In the embodiment of the invention, the MCU microcomputer control unit is a main control unit, and after the detected current and voltage signals are input into the MCU microcomputer control unit, corresponding control signals are output to control the working states of other units through calculation and analysis. The AC-to-DC 24V voltage stabilizing unit is used for voltage conversion and power supply, and converts AC100V-240V input into DC24V safe voltage for driving a direct current brushless motor. The DC-DC voltage stabilization 5V unit is used for converting 24V direct current voltage into 5V direct current voltage, and the MCU microcomputer control unit obtains 24V and 5V double-voltage power supply. The sound prompt unit is used for sending out corresponding prompt tones when the wire control and wireless remote control are carried out or abnormal protection is carried out, and the prompt tones can be set in advance. The RF wireless module extension unit is a wireless radio frequency remote control extension interface, and after the RF433 wireless module is welded, an infrared remote controller is used for realizing wireless remote control on the electric fan. The wire control unit controls the brushless motor driving unit through the MCU microcomputer control unit, so that the wind speed is controlled and regulated, and the wind speed can be regulated when no remote controller exists. The brushless motor driving unit is used for driving the electric fan, and the electric fan products do not need a braking function and do not need to control the starting and stopping positions, so that the electric fan can be started without a Hall, a reverse electrodynamic circuit is not needed to detect, overcurrent detection, locked rotor protection detection, short circuit protection detection and low-cost safe operation are reserved. The utility model discloses a take wireless remote control's brushless noninductive electric fan of frequency conversion direct current has realized wide voltage input, can be suitable for all over the world AC100V-240V and trun into direct current 24V safe voltage and drive efficient brushless motor.
To sum up, take wireless remote control's brushless noninductive electric fan of frequency conversion direct current have accurate voltage monitoring, the electrodeless speed governing of drive-by-wire, wireless radio frequency remote control, overcurrent protection, locked-rotor protection, short-circuit protection, the operation has audible cue, energy-conservation, silence, the brushless noninductive motor drive of high rotational speed non-maintaining can set to regularly closing through the remote controller, the cotton mode of sleeping, the mode, wait the electrodeless speed governing of PWM frequency conversion, wind-force is more even, advantages such as user experience is better.
As a preferred embodiment of the present invention, as shown in fig. 2, the model of the MCU microcomputer control unit is FU6831 single chip microcomputer, and other single chip microcomputers capable of implementing the functions of the present invention are also possible as known to those skilled in the art.
As a preferred embodiment of the present invention, the brushless motor driving unit includes driving MOS transistors Q4, Q5, Q6, Q7, Q8, Q9, and the driving MOS transistors Q4 and Q5, Q6 and Q7, Q8, and Q9 are connected in series and then in parallel, respectively. As shown in fig. 2 and 4, the AMP0O pin of the MCU microcomputer control unit is used for over-current detection and constant power detection AD port, and cooperates with the electronic torque gear to make the MCU output different PWM signals to drive the driving MOS transistors Q4, Q5, Q6, Q7, Q8, and Q9.
The embodiment of the utility model provides an in, because of fan class product does not need brake function, need not to control the start-stop position, can not have hall start admittedly, also need not reverse electrodynamic type circuit to detect yet, remain and overflow the detection, the locked-rotor protection detects, short-circuit protection detects, low-cost safe operation
As a preferred embodiment of the present invention, the brushless motor driving unit further includes a disconnection protection resistor RS 1. As shown in fig. 2 and 4, the MCU microcomputer control unit precisely controls protection, VHALF is a reference voltage output by the MCU microcomputer control unit and added with overcurrent input detection, and its value is 2.5V or other amplitude, in order to prevent inaccurate detection due to too small working current, AMP0O is a current detection voltage amplified by the MCU microcomputer control unit and is an overcurrent protection and locked rotor protection detection port, and itrp is an independent motor short circuit protection port, and when a large current and a high voltage are detected, the MCU microcomputer control unit immediately cuts off the driving MOS transistors Q4, Q5, Q6, Q7, Q8, and Q9 in a microsecond time to achieve protection.
As a preferred embodiment of the present invention, the voltage detection unit includes resistors R48, R54 and a capacitor C36, one end of the resistor R48 is connected to the power supply, the other end is connected to the MCU microcomputer control unit and the ground through R54 and R55, and the resistor R54 is connected to the ground through the capacitor C36.
The embodiment of the utility model provides an in, voltage detection unit is used for AC voltage to DC voltage 24V's detection, and voltage can start in normal within range motor side, guarantees brushless motor energy-efficient operation, extension motor life.
As a preferred embodiment of the present invention, the wire control speed regulation unit is a stepless speed regulation potentiometer. The wire control unit is a stepless speed regulation potentiometer arranged on the machine and can adjust the wind speed for use without a remote controller.
As a preferred embodiment of the present invention, the wire control speed regulation unit includes a potentiometer VR1, a connection base VR, a resistor R31, R32, R33 and a capacitor C24, the potentiometer VR1 is connected to the resistors R31, R32 and R33 through the connection base VR, the other end of the resistor R31 is connected to the power supply, the other end of the resistor R32 is grounded, the other end of the resistor R33 is connected to the MCU microcomputer control unit, and the resistor R33 is grounded through the capacitor C24 at the end connected to the MCU microcomputer control unit. Preferably, the maximum resistance of the potentiometer VR1 is 10k ohms.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a take wireless remote control's brushless noninductive electric fan of frequency conversion direct current which characterized in that includes: the system comprises an MCU microcomputer control unit, a voltage detection unit, an AC-to-DC 24V voltage stabilization unit, a DC-DC voltage stabilization 5V unit, an RF wireless module extension unit, a line control speed regulation unit, a sound prompt unit and a brushless motor drive unit; the MCU microcomputer control unit is respectively connected with the voltage detection unit, the DC-DC voltage stabilization 5V unit, the line control speed regulation unit and the brushless motor drive unit, the voltage detection unit is further connected with the AC-to-DC 24V voltage stabilization unit, the DC-DC voltage stabilization 5V unit is further respectively connected with the AC-to-DC 24V voltage stabilization unit and the RF wireless module extension unit, the line control speed regulation unit is further respectively connected with the RF wireless module extension unit and the sound prompt unit, and the sound prompt unit is further connected with the brushless motor drive unit.
2. The variable-frequency direct-current brushless non-inductive electric fan with the wireless remote control as claimed in claim 1, wherein the type of the MCU microcomputer control unit is an FU6831 singlechip.
3. The variable frequency DC brushless non-inductive electric fan with wireless remote control as claimed in claim 1, wherein said brushless motor driving unit comprises driving MOS transistors Q4, Q5, Q6, Q7, Q8, Q9, said driving MOS transistors Q4 and Q5, Q6 and Q7, Q8 and Q9 connected in series and then in parallel respectively.
4. The variable-frequency direct-current brushless non-inductive electric fan with wireless remote control according to claim 3, wherein the brushless motor driving unit further comprises a short-circuit protection resistor RS 1.
5. The variable-frequency direct-current brushless and non-inductive electric fan with the wireless remote control as claimed in claim 1, wherein the voltage detection unit comprises resistors R48 and R54 and a capacitor C36, one end of the resistor R48 is connected with a power supply, the other end of the resistor R48 is connected with the MCU microcomputer control unit and the ground through R54 and R55 respectively, and one end of the resistor R54 connected with the MCU microcomputer control unit is also connected with the ground through a capacitor C36.
6. The variable-frequency direct-current brushless non-inductive electric fan with the wireless remote control as claimed in claim 1, wherein the line control speed regulation unit is a stepless speed regulation potentiometer.
7. The frequency conversion direct current brushless non-inductive electric fan with wireless remote control as claimed in claim 1, wherein the speed control unit comprises a potentiometer VR1, a connector base VR, resistors R31, R32, R33 and a capacitor C24, the potentiometer VR1 is connected with the resistors R31, R32 and R33 through the connector base VR, the other end of the resistor R31 is connected with a power supply, the other end of the resistor R32 is grounded, the other end of the resistor R33 is connected with the MCU microcomputer control unit, and the end of the resistor R33 connected with the MCU microcomputer control unit is further grounded through the capacitor C24.
8. The frequency-conversion direct-current brushless and non-inductive electric fan with wireless remote control as claimed in claim 7, wherein the maximum resistance of the potentiometer VR1 is 10k ohms.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020094536.5U CN211573834U (en) | 2020-01-16 | 2020-01-16 | Frequency conversion direct current brushless non-inductive electric fan with wireless remote control |
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| CN202020094536.5U CN211573834U (en) | 2020-01-16 | 2020-01-16 | Frequency conversion direct current brushless non-inductive electric fan with wireless remote control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219819A (en) * | 2019-07-12 | 2019-09-10 | 中山格智美电器有限公司 | A kind of integrated remote control circuit of the electric machine built-in of electric fan |
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- 2020-01-16 CN CN202020094536.5U patent/CN211573834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219819A (en) * | 2019-07-12 | 2019-09-10 | 中山格智美电器有限公司 | A kind of integrated remote control circuit of the electric machine built-in of electric fan |
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