CN107035707B - LED light guide fan control circuit, control method and light guide fan - Google Patents

LED light guide fan control circuit, control method and light guide fan Download PDF

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Publication number
CN107035707B
CN107035707B CN201710289723.1A CN201710289723A CN107035707B CN 107035707 B CN107035707 B CN 107035707B CN 201710289723 A CN201710289723 A CN 201710289723A CN 107035707 B CN107035707 B CN 107035707B
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China
Prior art keywords
led
fan
control
driving circuit
capacitor
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CN201710289723.1A
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CN107035707A (en
Inventor
周佳秀
杨希海
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Guangzhou Yijia Electronic Co ltd
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Guangzhou Rongfeng Electronics Co ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/005—Decorative aspects, i.e. features which have no effect on the functioning of the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • F21V33/0096—Fans, e.g. ceiling fans
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

The invention discloses an LED light guide fan control circuit, a control method and a light guide fan, wherein the control circuit comprises a motor driving circuit, an LED driving circuit, an MCU module, a key control circuit and a synchronous control circuit; the key control circuit is used for sending key signals to the MCU module, the MCU module is used for generating a first control signal and a second control signal according to the key signals, and sending the first control signal to the motor driving circuit to control the operation of the motor, and sending the second control signal to the LED driving circuit to control the operation of the corresponding LED lamp; the MCU module is used for acquiring the rotating speed of the fan through the synchronous control circuit and the motor driving circuit, generating a synchronous signal according to the rotating speed of the fan and sending the synchronous signal to the LED driving circuit to control the display of the LED lamp. The invention realizes the synchronous control of the fan rotating speed and the LED light display in the LED light guide fan.

Description

LED light guide fan control circuit, control method and light guide fan
Technical Field
The present invention relates to a light guiding fan, and more particularly, to an LED light guiding fan and control thereof.
Background
Aiming at the current electronic competition market of comparing fire explosion, the traditional fan is only used for radiating heat for the computer case, so that the requirement of changing the market day to day is not met. Therefore, an LED light guide fan has been developed, in which an LED lamp is combined with a conventional fan, and when the fan is rotated, various colors of light are displayed through the LED lamp to increase the cool feeling of the device. However, in order to meet the requirements of electronic competition, the problems and contradictions of the fan in aspects of appearance, air quantity, power balance and light effect control method exist, the existing LED light guide fan generally aims at solving the heat dissipation problem of the LED light guide fan, and the problem of synchronization between the fan and the display effect of the LED lamp is difficult to solve; in addition, the LED lamp of the existing LED light guide fan is generally exposed outside, so that dust is easily accumulated, and the service life of the LED lamp is influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide an LED light guide fan control circuit which can solve the problem of synchronous control of lamplight and a fan in an LED light guide fan in the prior art.
In order to overcome the defects of the prior art, the second object of the invention is to provide a control method of an LED light-guiding fan, which can solve the problem of synchronous control of lamplight and the fan in the LED light-guiding fan in the prior art.
In order to overcome the defects of the prior art, the invention aims to provide an LED light guide fan which can solve the problems of synchronous control of lamplight and the fan and exposure of the LED lamp in the LED light guide fan in the prior art.
One of the purposes of the invention is realized by adopting the following technical scheme:
the LED light guide fan control circuit comprises a motor drive circuit, an LED drive circuit, an MCU module, a key control circuit and a synchronous control circuit;
the output end of the key control circuit, the input end of the LED drive circuit, the input end of the motor drive circuit and the output end of the synchronous control circuit are respectively and electrically connected with the MCU module; the input end of the synchronous control circuit is also electrically connected with the motor driving circuit;
the key control circuit is used for sending key signals to the MCU module, the MCU module is used for generating a first control signal and a second control signal according to the key signals, and sending the first control signal to the motor driving circuit to control the working state of the motor, and sending the second control signal to the LED driving circuit to control the working state of the LED lamp;
the motor driving circuit is also used for acquiring the rotating speed of the fan and sending the rotating speed to the MCU module through the synchronous control circuit, and the MCU module is used for generating a synchronous signal according to the rotating speed of the fan and sending the synchronous signal to the LED driving circuit to control the working state of the LED lamp.
Preferably, the power supply module further comprises a power supply module, wherein the power supply module comprises a 12V power supply and a power supply driving circuit for providing 3.3V power supply; the power supply driving circuit comprises a voltage stabilizer U1, a capacitor C1 and a capacitor C2, wherein an input end IN of the voltage stabilizer U1 is connected with a 12V power supply, and an output end OUT outputs a 3.3V power supply; the input end IN of the voltage stabilizer U1 is grounded through a capacitor C1, and the output end OUT is grounded through a capacitor C2; the ground end GND of the voltage regulator U1 is grounded;
the power supply driving circuit is used for providing 3.3V power supply for the MCU module.
Preferably, the MCU module comprises a control chip U2, a resistor R7, a resistor R9, a capacitor C4 and a capacitor C5; one end of the resistor R7 is used for being connected with a 3.3V power supply, and the other end of the resistor R7 is connected with a reset end REST of the control chip U2; the reset end REST is grounded through a capacitor C3; the ground terminal VSS of the control chip U2 is grounded; the power supply end VDD of the control chip U2 is connected with a 3.3V power supply, and is grounded through a capacitor C5, and the VCAP end of the control chip U2 is grounded through a capacitor C4; the LED-KEY end of the control chip U2 is connected with a 3.3V power supply through a resistor R9; the Same end of the control chip U2 is connected with the output end of the synchronous control circuit;
the KEY control circuit comprises a switch S1, one end of the switch S1 is connected with the LED-KEY end of the control chip U2, and the other end of the switch S1 is grounded.
Preferably, the LED driving circuit includes a plurality of LED positive electrode driving circuits and three LED negative electrode driving circuits; the LED lamps are formed by connecting a plurality of three-color lamp groups in parallel; the control chip U2 further comprises a plurality of first output ends and three second output ends, the first output ends, the three-color lamp groups and the LED positive electrode driving circuits are in one-to-one correspondence, and each first output end is connected to the positive electrode of the corresponding three-color lamp group through the corresponding LED positive electrode driving circuit;
the cathodes of the R lamps, the cathodes of the B lamps and the cathodes of the G lamps in each three-color lamp group are respectively connected to corresponding second output ends through corresponding LED cathode driving circuits.
Preferably, each LED positive electrode driving circuit comprises a first resistor, a first triode, a second triode and a second resistor; one end of the first resistor is connected with a first output end of the control chip, and the other end of the first resistor is connected with the base electrode of the first triode; the emitter of the first triode is grounded, and the collector of the first triode is connected with a 12V power supply through a second resistor; the collector electrode of the second triode is connected with the positive electrode of a three-color lamp group, the emitter electrode of the second triode is connected with a 12V power supply, and the base electrode of the second triode is connected with the collector electrode of the first triode;
each LED negative electrode driving circuit comprises a third triode and a third resistor, wherein a second output end of the control chip U2 is connected with a base electrode of the third triode through the third resistor, an emitting electrode of the third triode is grounded, and a collecting electrode of the third triode is connected with a negative electrode of a B lamp or a negative electrode of an R lamp or a negative electrode of a G lamp of a three-color lamp group.
Preferably, the synchronous control circuit comprises a diode D1, a capacitor C8 and a resistor R0, wherein the cathode of the diode D1 is connected with the motor driving circuit, and the anode of the diode D1 is connected with the MCU module through the resistor R0; the anode of the diode D1 is also grounded through a capacitor C8.
Preferably, the infrared remote control circuit further comprises an IR remote control circuit, wherein the IR remote control circuit comprises a resistor R10, a resistor R11, an IR infrared receiving head, a capacitor C6 and a capacitor C7; the output end OUT of the IR infrared receiving head is connected with the MCU module through a resistor R11, the grounding end GND is grounded, and the power supply end VCC is grounded through a capacitor C6; one end of the resistor R10 is connected with 3.3V connection, and the other end is grounded through a capacitor C7.
Preferably, the fan also comprises a rotating speed detection circuit, wherein the rotating speed detection circuit is used for detecting the rotating speed of the fan; the motor driving circuit comprises a Hall IC of a Hall sensor, a capacitor C10 and a capacitor C9, and the FG end of the Hall IC of the Hall sensor is connected with the synchronous control driving circuit; the MOTR end is connected with the motor, and the MOTL end is connected with the rotating speed detection circuit; the MOTR end is grounded through a capacitor C10; the MOTL terminal is also connected to ground through a capacitor C9.
The second purpose of the invention is realized by adopting the following technical scheme:
the control method of the LED light guide fan is executed by an MCU module of the LED light guide fan control circuit, and comprises the following steps:
when a remote control signal is received, the MCU module is used for generating a first fan control signal and a first LED lamp control signal and sending the first fan control signal to the motor driving circuit, so that the motor driving circuit controls the working state of the motor and sends the first LED lamp control signal to the LED driving circuit, and the display light effect of the LED lamp is controlled.
When a key signal is received, the MCU module is used for judging a working mode according to the key signal;
when the working mode is a normal mode, the MCU module is used for generating a second LED lamp control signal according to the key signal and sending the second LED lamp control signal to the LED drive circuit so as to control the LED lamp to display a corresponding light effect;
when the working mode is a synchronous mode, the MCU module is used for acquiring the rotating speed of the fan through the synchronous control circuit and the motor driving circuit, and generating a corresponding third LED lamp control signal according to the rotating speed of the fan in the synchronous mode and sending the third LED lamp control signal to the LED driving circuit, so that the display of the LED lamp is synchronous with the fan.
The third purpose of the invention is realized by adopting the following technical scheme:
the LED light guide fan comprises a first fan frame, fan blades and a second fan frame which is matched with the first fan frame, wherein a center shaft and four brackets fixedly connected with the center shaft are arranged in the first fan frame; one end of each bracket is fixed with the middle shaft, and the other end of each bracket is fixedly connected with the outer wall of the first fan frame; the fan blades are arranged on the central shaft and rotate along the central shaft; a first mounting groove is formed between the outer wall of the first fan frame and the inner wall of the first fan frame, and an LED lamp is arranged in the first mounting groove; a second mounting groove corresponding to the first mounting groove is formed between the outer wall of the second fan frame and the inner wall of the second fan frame; when the first fan frame and the second fan frame are mounted together, a closed cavity is formed between the first mounting groove and the second mounting groove, and the LED lamp is arranged in the cavity; the inner wall of the second fan frame is a light-transmitting inner wall;
the first fan frame or the second fan frame is internally provided with an LED light guide fan control circuit for executing the above.
Compared with the prior art, the invention has the beneficial effects that: the invention can realize the synchronous control of the LED lamp and the fan of the LED light guide fan; meanwhile, the display effect of the LED lamp of the LED light guide fan is not affected, and the service life of the LED lamp is prolonged.
Drawings
FIG. 1 is a block diagram of a control circuit provided by the present invention;
FIG. 2 is a circuit diagram of a power driving circuit provided by the present invention;
FIG. 3 is a circuit diagram of an MCU module provided by the invention;
FIG. 4 is a circuit diagram of a key control circuit according to the present invention;
FIG. 5 is a circuit diagram of a synchronous control circuit provided by the present invention;
FIG. 6 is a circuit diagram of an IR remote control circuit provided by the invention;
FIG. 7 is a circuit diagram of a motor driving circuit according to the present invention;
fig. 8 is a circuit diagram of an LED positive electrode driving circuit provided by the present invention;
FIG. 9 is a circuit diagram of the connection between the LED lamp and the LED cathode driving circuit;
FIG. 10 is an exploded view of the structure of the LED light-guiding fan according to the present invention;
FIG. 11 is a schematic top view of the first fan frame of FIG. 10;
FIG. 12 is a schematic view of the bottom structure of the first fan frame in FIG. 10;
FIG. 13 is a schematic view of a second fan frame in FIG. 10;
fig. 14 is a flow chart diagram of a control method provided by the present invention.
In the figure: 01. a first fan frame; 11. an outer wall of the first fan frame; 12. the inner wall of the first fan frame; 13. a first fan frame leg; 02. a second fan frame; 21. an outer wall of the second fan frame; 22. the inner wall of the second fan frame; 23. a second fan frame leg; 03. a fan blade; 04. a center shaft; 05. a bracket; 51. a wire slot; 06. a screw hole; 07. an LED lamp.
Detailed Description
The invention will be further described with reference to the accompanying drawings and detailed description below:
as shown in FIG. 1, the invention provides an LED light guide fan control circuit, which comprises a motor driving circuit, an LED driving circuit, an MCU module, a power module, an IR remote control circuit, a key control circuit and a synchronous control circuit.
The power supply module comprises a 12V power supply and a power supply driving circuit for providing 3.3V power supply, wherein the 12V power supply is used for realizing driving power supply for the motor, the LED lamp and the fan; and the 3.3V power supply is a power supply for powering the chip. The power supply driving circuit is used for providing 3.3V power supply for the MCU module and the IR remote control circuit, and the LED driving circuit is connected with the 12V power supply.
As shown IN fig. 2, the power supply driving circuit includes a voltage regulator U1, a capacitor C1 and a capacitor C2, where an input terminal IN of the voltage regulator U1 is connected to a 12V power supply terminal (i.e., a power supply terminal VCC), and an output terminal OUT outputs a 3.3V power supply (i.e., a power supply terminal VDD); the input end IN of the voltage stabilizer U1 is grounded through a capacitor C1, and the output end OUT is grounded through a capacitor C2; the ground GND of the voltage regulator U1 is grounded. The 12V power supply can be obtained through an external power supply interface, and the input/output interface J2 can provide 12V power supply for the power supply driving module and also provides 12V power supply for the LED driving circuit. Wherein the model of the voltage stabilizer U1 is AMS1117-3.3.
Further, the input end of the LED driving circuit, the output end of the IR remote control circuit, the output end of the key driving circuit, the output end of the synchronous control circuit and the input end of the motor driving circuit are respectively and electrically connected with the MCU module. The input end of the synchronous control circuit is also electrically connected with the motor driving circuit.
The LED driving circuit is used for controlling the working state of the LED lamp; the motor driving circuit is used for controlling the working state of the motor, so that the motor controls the rotation of the fan. The IR remote control circuit is used for receiving remote control signals sent by a remote control and forwarding the remote control signals to the MCU module; the MCU module is used for sending a first control signal to the motor driving circuit and sending a second control signal to the LED driving circuit, so that the motor driving circuit controls the work of the motor according to the first control signal, and the LED driving circuit controls the working state of the LED lamp according to the second control signal. For example, when a user turns on the fan and the LED lamp by remote control, the MCU module receives a remote control signal through the IR remote control circuit to control the motor driving circuit to drive the motor and the LED driving circuit to drive the LED lamp.
The key control circuit is used for sending key signals to the MCU module, and the MCU module is used for judging the working mode of the LED light guide fan according to the key signals.
In addition, the motor driving circuit is also connected with the rotating speed detecting circuit and is used for acquiring the rotating speed of the fan and sending the rotating speed to the MCU module through the synchronous control circuit. The MCU module is used for generating a third control signal according to the rotating speed of the fan and the corresponding working mode, and sending the third control signal to the LED driving circuit so as to control the display of the LED lamp.
According to the invention, the working modes of the LED light guide fan are switched through the key control circuit, wherein the working modes comprise a normal mode and a synchronous mode. After a user presses a corresponding key through remote control, the MCU module judges the working mode of the LED light guide fan according to the key signal, and further controls the working states of the fan and the LED lamp. In the conventional mode, the display effect of the LED lamp is irrelevant to the rotating speed of the fan, such as full brightness, snowflake effect, flickering effect and the like; in the synchronous mode, the display effect of the LED lamp is synchronous with the rotating speed of the fan, the rotating speed of the fan corresponds to the display of the LED lamp one by one, and the corresponding relation is designed in advance, for example, the rotating speed of the fan is 20, and the LED lamp is fully lighted; the fan rotation speed is 30, and the LED lamp is completely turned off.
That is, in the invention, the rotation switch of the fan and the display switch of the LED lamp are controlled by remote control; the working state of the LED light guide fan can be switched through the key.
As shown in fig. 3, the MCU module includes a control chip U2, a resistor R7, a flashlight C3, a capacitor C4, and a capacitor C5, where one end of the resistor R7 is connected to a 3.3V power supply, and the other end is connected to the NRST end of the control chip U2, and the other end of the resistor R7 is further grounded through the capacitor C3. Namely, the resistor R7, the capacitor C3 and the NRST terminal of the control chip U2 form a reset circuit for resetting the control chip U2. The VDD terminal of the control chip U2 is connected to a 3.3V power supply, and the VDD terminal is also grounded through a capacitor C5.
As shown in fig. 4, the KEY control circuit includes a switch S1, one end of the switch S1 is connected to the LED-KEY end of the control chip U2, and the other end of the switch S1 is grounded. The operating mode of the LED lamp is switched by the switch S1. The LED lamp can freely switch the working modes of the LED lamp, provides various appearance display effects for the LED light guide fan, and increases the cool sense of the LED light guide fan.
Further, the LED driving circuit comprises a plurality of LED positive electrode driving circuits and three LED negative electrode driving circuits. The LED lamp is formed by connecting a plurality of three-color lamp groups in parallel. The control chip U2 further comprises a plurality of first output ends and three second output ends, and the first output ends, the three-color lamp groups and the LED positive electrode driving circuits are in one-to-one correspondence; each first output end is connected to the positive electrode of the corresponding three-color lamp group through the corresponding LED positive electrode driving circuit. The cathodes of the R lamps, the cathodes of the B lamps and the cathodes of the G lamps in each three-color lamp group are respectively connected to corresponding second output ends through corresponding LED cathode driving circuits.
Preferably, in the present invention, nine three-color lamp sets are adopted, as shown in fig. 3, the first output ends of the corresponding control chip U2 are respectively the output ends D1 to D9, and the second output end of the control chip U2 is respectively the output end B, the output end R, and the output end G. Each trichromatic lamp group comprises two trichromatic lamps connected in series through corresponding resistors. Each three-color lamp group can independently operate. Nine corresponding LED positive electrode driving circuits and three corresponding LED negative electrode driving circuits are arranged.
As shown in fig. 8, one of the LED positive electrode driving circuits includes a resistor R1, a transistor Q2, a transistor Q3, and a resistor R2; one end of the resistor R1 is electrically connected with the output end D1, and the other end of the resistor R1 is connected with the base electrode of the triode Q2; the emitter of the triode Q2 is grounded, and the collector of the triode Q2 is connected with a 12V power supply through a resistor R2; the collector of the triode Q3 is connected with the positive electrode (the end of the LED21 shown in the figure) of a three-color lamp group, the emitter of the triode Q3 is connected with a 12V power supply, and the base of the triode Q3 is connected with the collector of the triode Q2.
As shown in fig. 9, the three LED cathode driving circuits are each composed of a resistor and a MOS transistor, and specifically include a transistor Q20, a transistor Q21, a transistor Q22, a resistor R24, a resistor R30, and a resistor R36.
The output end B of the control chip U2 is connected with the base electrode of the triode Q20 through a resistor R24, the output end R of the control chip U2 is connected with the base electrode of the triode Q21 through a resistor R30, and the output end G of the control chip U2 is connected with the base electrode of the triode Q22 through a resistor R36; the emitter of the triode Q20, the emitter of the triode Q21 and the emitter of the triode Q22 are all grounded; the collector of the triode Q20 is connected with the cathode of the B lamp of each three-color lamp group, the collector of the triode Q21 is connected with the cathode of the R lamp of each three-color lamp group, and the collector of the triode Q22 is connected with the cathode of the G lamp of each three-color lamp group.
The invention controls the display of R lamp, G lamp and B lamp in the three-color lamp group through the output signals of the output end B, the output end R, the output end G and the output ends D1 to D9 of the MCU module.
As shown in fig. 7, the motor driving circuit includes a Hall IC, a capacitor C9, and a capacitor C10, wherein an FG end (pin 1) of the Hall IC is electrically connected to an output end of the synchronous control circuit, a MOTR end (pin 2) is electrically connected to the motor, and a MOTL end (pin 3) is electrically connected to an output end of the rotation speed detecting circuit; the MOTR terminal (pin 2) is also grounded through a capacitor C10, the MOTL terminal (pin 3) is also grounded through a capacitor C9, and pin 4 is grounded. The rotation speed detection circuit is used for detecting the rotation speed of the fan.
The remote control in the invention adopts the technology of IR infrared rays, namely, a corresponding IR infrared receiving head is arranged on the LED light guide fan, and the IR infrared receiving head is used for receiving remote control signals. Correspondingly, a corresponding IR infrared transmitting head is arranged on the remote controller and is used for transmitting remote control signals. When a user uses the remote controller, a remote control signal is sent out through an IR infrared transmitter on the remote controller, and the IR infrared receiver receives the remote control signal and forwards the remote control signal to the MCU module, so that the MCU module can recognize and judge the remote control signal and then send a corresponding signal to a corresponding control circuit or driving circuit.
As shown in fig. 6, the IR remote control circuit includes an IR infrared receiving head, a resistor R11 and an RC filter circuit, wherein an output terminal OUT of the IR infrared receiving head is electrically connected with an IR terminal of the control chip U2 through the resistor R11, and a ground terminal GND is grounded. The RC filter circuit comprises a capacitor C6, a capacitor C7 and a resistor R10, wherein one end of the resistor R10 is connected with a 3.3V power supply. The other end of the resistor R10 is grounded through a capacitor C7, and the VCC end of the IR infrared receiving head is grounded through a capacitor C6.
As shown in fig. 5, the synchronous control circuit includes a resistor R0, a capacitor C8 and a diode D1, wherein the positive electrode of the diode D1 is electrically connected to the FG end of the motor driving circuit, and the negative electrode is connected to the Same end of the control chip U2 through the resistor R0. The cathode of the diode D1 is also grounded through a capacitor C8. The control chip U2 is used for acquiring the rotating speed of the fan through the synchronous control circuit and the motor driving circuit, and generating corresponding PWM signals to the LED positive electrode driving circuit and the LED negative electrode driving circuit according to the rotating speed of the fan, so that the R lamp, the G lamp and the B lamp in the LED lamp are controlled to be displayed, and the display of the LED lamp is synchronous with the rotating speed of the fan.
Working principle:
remote control: the MCU module can control the operation of the fan and the operation of the LED lamp by receiving a remote control signal of the IR remote control circuit.
Switching operation mode control: the switch S1 is used for sending a key signal to the MCU module, so that the MCU module can switch and adjust the working mode of the LED lamp according to the key signal, namely, the MCU module sends a corresponding control signal to the LED negative electrode driving circuit and the LED positive electrode driving circuit, and the working state of the LED lamp is controlled. The operation modes are a normal mode and a synchronous mode.
Synchronous control: the MCU module is also used for acquiring the rotating speed of the fan through the synchronous control circuit and the motor driving circuit, so that corresponding PWM signals are generated for the LED positive electrode driving circuit and the LED negative electrode driving circuit according to the rotating speed of the fan and the working mode, and the R lamp, the G lamp and the B lamp in the corresponding three-color lamp group are controlled to be displayed, so that the display of the LED lamp and the rotating speed of the fan are synchronous.
In addition, in the synchronous mode, the corresponding relation between the rotating speed of the fan and the display effect of the LED lamp is preset in the MCU module. The MCU module monitors the rotating speed of the fan in real time, obtains a corresponding PWM signal according to the rotating speed of the fan, and then sends the PWM signal to the LED positive electrode driving circuit and the LED negative electrode driving circuit, so that the work of the LED lamp is controlled.
The invention also provides a control method of the LED light guide fan, which comprises the following steps:
when a remote control signal is received, the MCU module is used for generating a first fan control signal and a first LED lamp control signal and sending the first fan control signal to the motor driving circuit, so that the motor driving circuit controls the working state of the motor and sends the first LED lamp control signal to the LED driving circuit, and further, the display light effect of the LED lamp is controlled.
That is, the invention can control the rotation of the fan and the display of the LED lamp by remote control.
When the key signal is received, the MCU module is used for judging the key signal to judge the working mode;
the invention can control the working modes of the LED light guide fan through the keys, and the working modes are generally divided into a conventional mode and a synchronous mode. The conventional mode generally refers to a relatively common LED light display mode, such as snowflake display, blinking display, full-lit. The synchronous mode corresponds to the display effect of the LED lamp in the conventional mode, and the display of the LED lamp is synchronous with the rotating speed of the fan. For example, when the rotating speed of the fan is 20, the LED lamp shows snowflake effect; when the rotating speed of the fan is 30, the LED lamp shows a full-lighting effect. In the synchronous mode, the relation between the rotation speed of the fan and the display effect of the LED lamp is designed in advance.
As shown in fig. 14, when the working mode is the normal mode, the MCU module is configured to generate a second LED control signal according to the key signal and send the second LED control signal to the LED driving circuit, so as to control the LED lamp to display a corresponding light effect.
When the working mode is the synchronous mode, the MCU module is used for acquiring the rotating speed of the fan through the synchronous control circuit and the motor driving circuit, and generating a third LED lamp control signal according to the rotating speed of the fan and the synchronous mode and sending the third LED lamp control signal to the LED driving circuit, so that the display frequency of the LED lamp is synchronous with the rotating speed of the fan. Specifically, the MCU firstly obtains the rotating speed of the fan, then generates a corresponding PWM signal according to the rotating speed and the working mode of the fan, and controls the LED positive electrode driving circuit and the LED negative electrode driving circuit according to the PWM signal, so that the display states of the R lamp, the G lamp and the B lamp in the LED lamp are controlled, and the fan and the LED lamp are synchronized.
As shown in fig. 10 to 13, the present invention further provides an LED light guiding fan, which includes a first fan frame 01, fan blades 03, and a second fan frame 02 mounted in cooperation with the first fan frame 01, wherein a center shaft 04 and four brackets 05 fixedly connected with the center shaft 04 are disposed in the first fan frame 01; one end of each bracket 05 is fixed with the middle shaft 04, and the other end is fixedly connected with the outer wall 11 of the first fan frame; the fan blades 03 are arranged on the middle shaft 04 and rotate along the middle shaft 04; a first mounting groove is formed between the outer wall 11 of the first fan frame and the inner wall 12 of the first fan frame, and an LED lamp 07 is arranged in the first mounting groove; a second mounting groove corresponding to the first mounting groove is formed between the outer wall 21 of the second fan frame and the inner wall 22 of the second fan frame; when the first fan frame 01 and the second fan frame 02 are mounted together, a closed cavity is formed between the first mounting groove and the second mounting groove, and the LED lamp 07 is arranged in the cavity; the inner wall 22 of the second fan frame is a light-transmitting inner wall;
the first fan frame 01 or the second fan frame 02 is internally provided with the LED light guide fan control circuit.
Preferably, the LED lamp 07 may also be an LED lamp strip.
Preferably, a plurality of first fan frame legs 13 which are symmetrically and uniformly distributed are further arranged on the outer side of the outer wall 11 of the first fan frame, and a second fan frame leg 23 which corresponds to the first fan frame leg 13 is also arranged on the outer side of the outer wall 21 of the second fan frame. The first fan frame leg 13 and the second fan frame leg 23 are fixedly connected by a screw installed in the screw hole 06, so that the first fan frame 01 and the second fan frame 02 are fixedly installed together. In addition, the first fan frame leg 13 and the second fan frame leg 23 may be fixedly connected by providing corresponding fastening slots.
In addition, a motor is arranged in the middle shaft 04, and the fan blades 03 can rotate along the middle shaft 04 under the drive of the motor. The motor is connected with a motor driving circuit in the control circuit and can work under the action of the motor driving circuit.
Preferably, one bracket 05 of the four brackets 05 is provided with a wire slot 51, and the wire slot 51 is used for placing connection wires of the motor and the control circuit.
Further, the control circuit can be arranged in the fan frame of the LED light guide fan according to specific conditions, for example, a PCB formed by the circuit modules is arranged in the fan frame inner groove, the fan is arranged in the center shaft 04 in a driving mode, and the IR infrared receiving head is hidden in the fan frame.
Preferably, the control circuit provided by the invention can also be applied to other LED light guide fans commonly used in the market.
Through setting up LED lamp 07, control circuit in the fan frame of LED leaded light fan, not only realized the various outward appearance display effect of LED leaded light fan, also prolonged the life of LED lamp simultaneously, broken through traditional single fan and lamp area independent control's mode.
The above-described solutions and concepts make other various corresponding changes and modifications, all of which shall fall within the scope of the appended claims.

Claims (10)

1. The LED light guide fan control circuit is characterized by comprising a motor driving circuit, an LED driving circuit, an MCU module, a key control circuit and a synchronous control circuit;
the output end of the key control circuit, the input end of the LED drive circuit, the input end of the motor drive circuit and the output end of the synchronous control circuit are respectively and electrically connected with the MCU module; the input end of the synchronous control circuit is also electrically connected with the motor driving circuit;
the key control circuit is used for sending key signals to the MCU module, the MCU module is used for generating a first control signal and a second control signal according to the key signals, and sending the first control signal to the motor driving circuit to control the working state of the motor, and sending the second control signal to the LED driving circuit to control the working state of the LED lamp;
the motor driving circuit is also used for acquiring the rotating speed of the fan and sending the rotating speed to the MCU module through the synchronous control circuit, and the MCU module is used for generating a synchronous signal according to the rotating speed of the fan and sending the synchronous signal to the LED driving circuit to control the working state of the LED lamp.
2. The LED light directing fan control circuit of claim 1, further comprising a power module comprising a 12V power supply and a power drive circuit for providing 3.3V power; the power supply driving circuit comprises a voltage stabilizer U1, a capacitor C1 and a capacitor C2, wherein an input end IN of the voltage stabilizer U1 is connected with a 12V power supply, and an output end OUT outputs a 3.3V power supply; the input end IN of the voltage stabilizer U1 is grounded through a capacitor C1, and the output end OUT is grounded through a capacitor C2; the ground end GND of the voltage regulator U1 is grounded;
the power supply driving circuit is used for providing 3.3V power supply for the MCU module.
3. The LED light guide fan control circuit of claim 2, wherein the MCU module comprises a control chip U2, a resistor R7, a resistor R9, a capacitor C4, and a capacitor C5; one end of the resistor R7 is used for being connected with a 3.3V power supply, and the other end of the resistor R7 is connected with a reset end REST of the control chip U2; the reset end REST is grounded through a capacitor C3; the ground terminal VSS of the control chip U2 is grounded; the power supply end VDD of the control chip U2 is connected with a 3.3V power supply, and is grounded through a capacitor C5, and the VCAP end of the control chip U2 is grounded through a capacitor C4; the LED-KEY end of the control chip U2 is connected with a 3.3V power supply through a resistor R9; the Same end of the control chip U2 is connected with the output end of the synchronous control circuit;
the KEY control circuit comprises a switch S1, one end of the switch S1 is connected with the LED-KEY end of the control chip U2, and the other end of the switch S1 is grounded.
4. The LED light directing fan control circuit of claim 3, wherein the LED drive circuit comprises a plurality of LED positive drive circuits and three LED negative drive circuits; the LED lamps are formed by connecting a plurality of three-color lamp groups in parallel; the control chip U2 further comprises a plurality of first output ends and three second output ends, the first output ends, the three-color lamp groups and the LED positive electrode driving circuits are in one-to-one correspondence, and each first output end is connected to the positive electrode of the corresponding three-color lamp group through the corresponding LED positive electrode driving circuit;
the cathodes of the R lamps, the cathodes of the B lamps and the cathodes of the G lamps in each three-color lamp group are respectively connected to corresponding second output ends through corresponding LED cathode driving circuits.
5. The LED light directing fan control circuit of claim 4, wherein each LED positive drive circuit comprises a first resistor, a first triode, a second triode, and a second resistor; one end of the first resistor is connected with a first output end of the control chip, and the other end of the first resistor is connected with the base electrode of the first triode; the emitter of the first triode is grounded, and the collector of the first triode is connected with a 12V power supply through a second resistor; the collector electrode of the second triode is connected with the positive electrode of a three-color lamp group, the emitter electrode of the second triode is connected with a 12V power supply, and the base electrode of the second triode is connected with the collector electrode of the first triode;
each LED negative electrode driving circuit comprises a third triode and a third resistor, wherein a second output end of the control chip U2 is connected with a base electrode of the third triode through the third resistor, an emitting electrode of the third triode is grounded, and a collecting electrode of the third triode is connected with a negative electrode of a B lamp or a negative electrode of an R lamp or a negative electrode of a G lamp of a three-color lamp group.
6. The LED light guide fan control circuit of any one of claims 1-5, wherein the synchronization control circuit comprises a diode D1, a capacitor C8 and a resistor R0, the cathode of the diode D1 is connected with the motor driving circuit, and the anode is connected with the MCU module through the resistor R0; the anode of the diode D1 is also grounded through a capacitor C8.
7. The LED light directing fan control circuit of any of claims 1-5, further comprising an IR remote control circuit comprising resistor R10, resistor R11, IR infrared receiver head, capacitor C6, and capacitor C7; the output end OUT of the IR infrared receiving head is connected with the MCU module through a resistor R11, the grounding end GND is grounded, and the power supply end VCC is grounded through a capacitor C6; one end of the resistor R10 is connected with 3.3V connection, and the other end is grounded through a capacitor C7.
8. The LED light guide fan control circuit of any of claims 1-5, further comprising a rotational speed detection circuit for detecting a rotational speed of the fan; the motor driving circuit comprises a Hall sensor Hall IC, a capacitor C10 and a capacitor C9, and the FG end of the Hall sensor Hall IC is connected with the synchronous control driving circuit; the MOTR end is connected with the motor, and the MOTL end is connected with the rotating speed detection circuit; the MOTR end is grounded through a capacitor C10; the MOTL terminal is also connected to ground through a capacitor C9.
9. A control method of an LED light guide fan, the control method being executed by an MCU module of the LED light guide fan control circuit according to any one of claims 1 to 8, comprising the steps of:
when a remote control signal is received, the MCU module is used for generating a first fan control signal and a first LED lamp control signal and sending the first fan control signal to the motor driving circuit, so that the motor driving circuit controls the working state of the motor and sends the first LED lamp control signal to the LED driving circuit, and the display light effect of the LED lamp is controlled;
when a key signal is received, the MCU module is used for judging a working mode according to the key signal;
when the working mode is a normal mode, the MCU module is used for generating a second LED lamp control signal according to the key signal and sending the second LED lamp control signal to the LED drive circuit so as to control the LED lamp to display a corresponding light effect;
when the working mode is a synchronous mode, the MCU module is used for acquiring the rotating speed of the fan through the synchronous control circuit and the motor driving circuit, and generating a corresponding third LED lamp control signal according to the rotating speed of the fan in the synchronous mode and sending the third LED lamp control signal to the LED driving circuit, so that the display of the LED lamp is synchronous with the fan.
10. The LED light guide fan is characterized by comprising a first fan frame, fan blades and a second fan frame which is matched with the first fan frame, wherein a center shaft and four brackets fixedly connected with the center shaft are arranged in the first fan frame; one end of each bracket is fixed with the middle shaft, and the other end of each bracket is fixedly connected with the outer wall of the first fan frame; the fan blades are arranged on the central shaft and rotate along the central shaft; a first mounting groove is formed between the outer wall of the first fan frame and the inner wall of the first fan frame, and an LED lamp is arranged in the first mounting groove; a second mounting groove corresponding to the first mounting groove is formed between the outer wall of the second fan frame and the inner wall of the second fan frame; when the first fan frame and the second fan frame are mounted together, a closed cavity is formed between the first mounting groove and the second mounting groove, and the LED lamp is arranged in the cavity; the inner wall of the second fan frame is a light-transmitting inner wall;
the LED light guide fan control circuit according to any one of claims 1 to 8 is provided in the first or second fan frame.
CN201710289723.1A 2017-04-27 2017-04-27 LED light guide fan control circuit, control method and light guide fan Active CN107035707B (en)

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Publication number Priority date Publication date Assignee Title
CN109139528B (en) * 2018-09-25 2024-03-22 东莞市觅智智能家居有限公司 Fan detection system and detection method
CN113803282B (en) * 2020-06-16 2023-06-20 华润微集成电路(无锡)有限公司 Circuit structure and method for realizing fan rotation speed display light effect

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2544124Y (en) * 2002-04-24 2003-04-09 扬特科技股份有限公司 Radiation fan with lamp light effect
CN2568849Y (en) * 2002-07-31 2003-08-27 王启涛 Radiating fan with lamplight effect
CN2641353Y (en) * 2003-09-10 2004-09-15 欣瑞联电子(深圳)有限公司 Heat radiation fan equipment with LED
CN203098347U (en) * 2013-01-11 2013-07-31 安徽工程大学 Remote control color screen fan device
CN203476759U (en) * 2013-05-29 2014-03-12 高立 Sixteen-color adjustable fan controller
CN204942033U (en) * 2015-08-28 2016-01-06 佛山市科聚电子有限公司 A kind of radio control circuit for fan LED
CN205249580U (en) * 2015-12-23 2016-05-18 深圳市中孚光电科技有限公司 Light modulation control circuit with fan and shutoff function
CN205533319U (en) * 2016-01-15 2016-08-31 东莞市富士多实业投资有限公司 LED becomes light fan
CN205858766U (en) * 2016-07-13 2017-01-04 广州捷特航模科技有限公司 A kind of radiator fan
CN206092473U (en) * 2016-10-11 2017-04-12 东莞虹盛电子科技有限公司 Two light rings radiator fan that gives out light; give off light
CN207004866U (en) * 2017-04-27 2018-02-13 广州市荣峰电子有限公司 A kind of LED leaded lights fan control circuitry and LED leaded light fan

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2544124Y (en) * 2002-04-24 2003-04-09 扬特科技股份有限公司 Radiation fan with lamp light effect
CN2568849Y (en) * 2002-07-31 2003-08-27 王启涛 Radiating fan with lamplight effect
CN2641353Y (en) * 2003-09-10 2004-09-15 欣瑞联电子(深圳)有限公司 Heat radiation fan equipment with LED
CN203098347U (en) * 2013-01-11 2013-07-31 安徽工程大学 Remote control color screen fan device
CN203476759U (en) * 2013-05-29 2014-03-12 高立 Sixteen-color adjustable fan controller
CN204942033U (en) * 2015-08-28 2016-01-06 佛山市科聚电子有限公司 A kind of radio control circuit for fan LED
CN205249580U (en) * 2015-12-23 2016-05-18 深圳市中孚光电科技有限公司 Light modulation control circuit with fan and shutoff function
CN205533319U (en) * 2016-01-15 2016-08-31 东莞市富士多实业投资有限公司 LED becomes light fan
CN205858766U (en) * 2016-07-13 2017-01-04 广州捷特航模科技有限公司 A kind of radiator fan
CN206092473U (en) * 2016-10-11 2017-04-12 东莞虹盛电子科技有限公司 Two light rings radiator fan that gives out light; give off light
CN207004866U (en) * 2017-04-27 2018-02-13 广州市荣峰电子有限公司 A kind of LED leaded lights fan control circuitry and LED leaded light fan

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