WO2018176617A1 - Atomizing device - Google Patents

Abstract

An atomizing device, having an atomizing member (U7) and a control system controlling the operation of the atomizing member (U7). The control system comprises: a controller (U1) and a frequency output module (U6) electrically connected to the controller (U1) by means of a frequency control circuit and electrically connected to the atomizing member (U7) by means of an amplifier circuit, such that the controller (U1) can adjust the operating state of the atomizing member (U7) by means of an output signal from the frequency output module (U6); and a feedback circuit, electrically connected to the controller (U1) and the atomizing member (U7), and used to feed back operating current of an output terminal of the atomizing member (U7) to the controller (U1). By means of the feedback circuit arranged between the atomizing member (U7) and the controller (U1), the controller (U1) can determine, according to a size of an operating current of the atomizing member (U7) at different frequencies, a corresponding output frequency of the frequency output module (U6) to enable the atomizing member (U7) to operate at a resonance frequency, such that the controller (U1) can enable the atomizing member (U7) to operate at the resonance frequency by means of the frequency output module (U6) outputting a signal at said corresponding frequency, allowing the atomizing device to achieve maximum atomization.

Description

Fog device Technical field

The utility model relates to an air conditioning device, in particular to a fogging device.

Background technique

Existing humidifiers, aromatherapy devices and the like with fogging function generally generate vibration by the vibration of the atomizing sheet, and the principle is that the atomizing sheet is generated after applying a certain frequency of alternating voltage on both ends of the atomizing sheet. Vibration causes the liquid water molecular structure to break up to produce water mist. The existing fogging device usually works by driving the atomizing piece at a fixed frequency. Ideally, the fixed frequency should be preset to be the same as the resonant frequency of the atomizing piece, so that the fogging amount of the fogging device can be maximized. value. However, individual differences in the atomized sheet may cause differences in the resonant frequency of the atomizing sheet of the same specification, and the atomizing sheet may also change the resonant frequency due to component aging or temperature influence, and the preset fixed frequency is usually associated with the atomizing sheet. The resonance frequencies are inconsistent, resulting in a small amount of fogging of the fogging device. In view of this, the present application is specifically filed.

Utility model content

The technical problem to be solved by the present invention is to provide a fogging device to solve the problem that the fogging amount of the existing fogging device is small.

In order to solve the above technical problem, the utility model provides a fogging device, which has an atomizing piece and a control system for controlling the working of the atomizing piece; the control system comprises: a controller; a frequency output module electrically connected to the frequency control circuit The controller is electrically connected to the atomizing sheet through an amplifying circuit, so that the controller can adjust an operating state of the atomizing sheet by controlling an output signal of the frequency output module; a feedback circuit, an electrical connection The controller and the atomizing sheet are used to feed back an operating current of the output end of the atomizing sheet to the controller.

The utility model can also be further optimized by the following means.

Preferably, the amplifying circuit includes: a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a fourth resistor, a fifth resistor, a field effect transistor, a first inductor, and a second voltage regulator. The seventh capacitor is an electrolytic capacitor; the feedback circuit includes a sixth resistor; the signal output end of the frequency output module is connected to the first end of the sixth capacitor, and the fourth resistor The first end of the FET, the gate of the FET is connected to the second end of the sixth capacitor, the second end of the fourth resistor, and the first end of the fifth resistor, the FET The drain is connected to the second end of the first inductor, the first end of the ninth capacitor, and the cathode of the second Zener diode, and the source of the FET is connected to the first end of the sixth resistor a positive end of the second Zener diode, a second end of the fifth resistor, an output end of the atomizing sheet, and a second end of the ninth capacitor connected to an input end of the atomizing sheet The first end of the first inductor is connected to the anode of the seventh capacitor, the first end of the eighth capacitor, the cathode of the seventh capacitor, the second end of the eighth capacitor, and the sixth The second end of the resistor is connected to ground.

Preferably, the amplifying circuit further includes a seventh resistor and an eighth resistor connected in parallel with the sixth resistor.

Preferably, the feedback circuit further includes a second resistor and a fifth capacitor, wherein the first end of the fifth capacitor is connected to the feedback signal input end of the controller and the first end of the second resistor. The second end of the second resistor is connected to the first end of the sixth resistor and the source of the FET.

Preferably, the controller is a QA8F12048N3 single chip microcomputer.

Preferably, the frequency output module is a 46R064B chip.

Preferably, the fogging device further has a fan that drives the flow of water mist generated by the fogging device, and the controller electrically connects the fan through a fan driving circuit, the fan driving circuit comprising: a triode; The base is connected to the fan drive end of the controller, the collector of the triode is connected to the fan, and the emitter of the triode is grounded.

Preferably, the power supply circuit of the fogging device for connecting the external power module includes: a second capacitor, a third capacitor, a three-terminal regulator and a first Zener diode, wherein the third capacitor is an electrolytic capacitor; The input end of the terminal regulator is connected to the first end of the second capacitor, and the output end of the three-terminal regulator is connected to the anode of the third capacitor and the cathode of the first regulator.

Preferably, the three-terminal regulator is 78L05.

Preferably, the fogging device is a humidifier or an aromatizer.

By adopting the above technical solution, the utility model can obtain the following technical effects: by configuring a feedback circuit between the atomizing sheet and the controller, the controller can determine the atomizing sheet according to the working current magnitude when the atomizing sheet operates at different frequencies. The output frequency corresponding to the frequency output module when operating at the resonant frequency, so that the controller can output the output through the frequency output module The signal of the corresponding frequency is such that the atomizing sheet operates at the resonant frequency, so that the fogging device has the largest amount of fogging.

DRAWINGS

1 is a connection diagram of a control system of the fogging device of the present invention;

FIG. 2 is a diagram showing the circuit connection relationship of the utility model fogging device.

Reference numeral

U1, controller; U2, debugging module; U3, fan module; U4, three-terminal regulator; U5, external power module; U6, frequency control module; U7, atomizer.

detailed description

Referring to FIG. 1 and FIG. 2, the fogging device of the present invention has an atomizing sheet U7 and a control system for controlling the operation of the atomizing sheet; the control system comprises: a controller U1; and a frequency output module U6, which is electrically connected through a frequency control circuit. The controller U1 is electrically connected to the atomizing sheet U7 through an amplifying circuit, so that the controller U1 can adjust the working state of the atomizing sheet (U7) by controlling the output signal of the frequency output module U6; the feedback circuit is electrically connected to the controller. U1 and the atomizing sheet U7 are used to feed back the operating current of the output end of the atomizing sheet U7 to the controller U1.

The fogging device of the utility model comprises a controller U1, a fan U3, a light module, a frequency control module U6 and an atomizing sheet U7. The controller U1 has an external terminal for externally debugging the module U2 to debug the controller U1 through the debug module U2. The external power module U5 is connected to the control system of the fogging device through a power circuit to supply power to the fog device. The fan is used to drive the water mist generated by the fogging device, and the controller U1 controls the fan to operate through the fan driving circuit. The light module is composed of LED lights of different colors. For example, the LED 1 in FIG. 2 can be a red light, the LED 2 can be a green light, and the controller U1 drives the LED light to operate through a light driving circuit.

The controller U1 can be a QA8F12048N3 microcontroller, which is composed of an 8-bit RISC MCU core, timer, ROM and RAM memory, I/O driver, PFD driver, PWM driver, analog LCD driver, AD converter, timer, clock generator. And other components. The frequency output module U6 can be a 46R064B chip. The second end and the fifth end of the frequency output module U6 are connected to the fifth end of the controller U1, and the first end of the frequency output module U6 is connected to the atomizing piece through the amplifying circuit. U7. The frequency output module can generate a driving signal of a certain frequency, for example, a high frequency signal of up to 1.7M, and the controller U1 can control the output frequency of the frequency output module through the PFD driving, and after being amplified by the amplifying circuit, the atomizing sheet U7 is driven. jobs. The atomizing sheet U7 port 1 is connected to the 11 end of the controller U1 through a feedback circuit, and the controller U1 can receive the information of the operating current of the atomizing sheet U7. When the atomizing sheet is turned on, the controller U1 may first control the frequency output module U6 to drive the atomizing sheet U7 to operate at different frequencies, and determine the frequency corresponding to the resonant frequency of the atomizing sheet U7 according to the change of the electrical signal received by the feedback circuit. The output frequency of the output module U6, such as when the frequency output module U6 outputs a high-frequency signal of 1.3-1.4M according to the received electrical signal, and the operating current of the atomizing sheet U7 fluctuates within the maximum range, the output of the frequency output module U6 can be roughly determined. When 1.35M high frequency signal, the atomizing sheet U7 corresponds to the resonant frequency, and the controller U1 can control the frequency output module U6 to output a high frequency signal of 1.35M according to the information.

The power supply circuit of the fogging device for connecting the external power module U5 includes: a second capacitor C2, a third capacitor C3, a three-terminal regulator U4 and a first Zener diode D1, and a third capacitor C3 is an electrolytic capacitor; The input end of the voltage regulator U4 is connected to the first end of the second capacitor C2, and the output end of the three-terminal regulator U4 is connected to the anode of the third capacitor C3 and the cathode of the first Zener diode D1. The three-terminal regulator converts the high voltage to a low voltage, such as converting the +12V voltage of the external power module U5 to a voltage of +5V. The three-terminal regulator can be a 78L05 regulator.

As shown in FIG. 2, in an embodiment, the amplifying circuit includes: a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a fourth resistor R4, a fifth resistor R5, and a field effect transistor Q2. The first inductor L1, the second Zener diode D2, and the seventh capacitor are electrolytic capacitors; the feedback circuit includes a second resistor R2, a fifth capacitor C5, a sixth resistor R6, and a seventh resistor connected in parallel with the sixth resistor R6. R7 and eighth resistor R8. The signal output end 1 of the frequency output module U6 is connected to the first end of the sixth capacitor C6 and the first end of the fourth resistor R4, and the gate of the FET Q2 is connected to the second end and the fourth resistor of the sixth capacitor C6. The second end of R4 and the first end of the fifth resistor R5, the drain of the field effect transistor Q2 is connected to the second end of the first inductor L1, the first end of the ninth capacitor C9, and the cathode of the second Zener diode D2. The source of the FET Q2 is connected to the first end of the sixth resistor R6, the first end of the seventh resistor R7, the first end of the eighth resistor R8, the anode of the second Zener diode D2, and the fifth resistor R5. The second end, the output end 1 of the atomizing sheet U7, and the second end of the ninth capacitor C9 are connected to the input end 2 of the atomizing sheet U7. The first end of the first inductor L1 is connected to the anode of the seventh capacitor C7, the first end of the eighth capacitor C8, the cathode of the seventh capacitor C7, the second end of the eighth capacitor C8, and the second end of the sixth resistor R6. Commonly connected to the ground, the first end of the fifth capacitor C5 is connected to the feedback signal input end 11 of the controller U1 and the first end of the second resistor R2, and the second end of the second resistor R2 is connected to the sixth resistor R6. One end, the source of the FET Q2; the first end of the first inductor L1 is connected to the voltage input terminal of the external power module U5, and the port can be +25V.

The second Zener diode D2 can be a TVS tube. The first inductor L1 is for preventing the oscillating signal from interfering with the power source. In another embodiment, the seventh resistor R7 and the eighth resistor R8 may be omitted, and the resistance of the sixth resistor R6 may be changed instead. In another embodiment, the field effect transistor Q2 can also be replaced by a triode. Compared to the triode, the FET Q2 has the advantage of low heat generation.

The fan driving circuit comprises: a transistor Q1; the base of the transistor Q1 is connected to the fan driving end 7 of the controller, the collector of the transistor Q1 is connected to one end of the fan, and the emitter of the transistor Q1 is grounded.

The positive poles of LED1 and LED2 are respectively connected to port 9 and port 10 of controller U1, and the negative poles are respectively grounded, so that controller U1 can control LED1 and LED2 to operate.

The port 8 of the controller U1 is externally connected to the working voltage error correction circuit, and includes a first resistor R1, a fourth capacitor C4 and a variable resistor VR1. The port 8 of the controller U1 is connected to the first end of the first resistor R1, The first end of the fourth capacitor C4, the first end and the third end of the variable resistor VR1, the second end of the first resistor R1 and the second end of the fourth capacitor C4 are connected to the ground, and the variable resistor VR1 is The two ends are connected to the output of the three-terminal regulator +5V. When the output of the three-terminal stabilizer +5V is not actually outputting the voltage of +5V, the port 8 of the controller U1 detects the information, and can further combine the information through the alarm module connected to the controller U1 (not shown). An alarm is issued for the user to make corrections. The first Zener diode D1 can be a TVS tube.

The fogging device of the present invention may be a humidifier or an aromatherapy device.

The above is the specific embodiment of the present invention. Many variations and modifications may be made by those skilled in the art without departing from the scope of the invention. These are all within the scope of protection of the present invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims (10)

A fogging device having an atomizing sheet (U7) and a control system for controlling the operation of the atomizing sheet; wherein the control system comprises: Controller (U1); a frequency output module (U6) electrically connected to the controller (U1) through a frequency control circuit and electrically connected to the atomizing sheet (U7) through an amplifying circuit, so that the controller (U1) can pass through the control station An output signal of the frequency output module (U6) to adjust an operating state of the atomizing sheet (U7); A feedback circuit electrically connects the controller (U1) and the atomizing sheet (U7) for feeding back an operating current of the output end of the atomizing sheet (U7) to the controller (U1). The fogging device according to claim 1, wherein the amplifying circuit comprises: a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a fourth resistor, a fifth resistor, a field effect transistor, and a An inductor, a second voltage regulator, the seventh capacitor is an electrolytic capacitor; the feedback circuit includes a sixth resistor; The signal output end of the frequency output module (U6) is connected to the first end of the sixth capacitor and the first end of the fourth resistor, and the gate of the FET is connected to the sixth capacitor. a second end, a second end of the fourth resistor, a first end of the fifth resistor, a drain of the FET is connected to the second end of the first inductor, and the first end of the ninth capacitor a cathode of the second Zener tube, a source of the FET is connected to a first end of the sixth resistor, a positive pole of the second Zener diode, a second end of the fifth resistor, An output end of the atomizing sheet, a second end of the ninth capacitor is connected to an input end of the atomizing sheet, and a first end of the first inductor is connected to a positive pole of the seventh capacitor, the first The first end of the eight capacitor, the negative terminal of the seventh capacitor, the second end of the eighth capacitor, and the second end of the sixth resistor are connected to ground. The fogging device according to claim 2, wherein said amplifying circuit further comprises a seventh resistor and an eighth resistor connected in parallel with said sixth resistor. The device of claim 2, wherein the feedback circuit further comprises a second resistor and a fifth capacitor, wherein the first end of the fifth capacitor is connected to the feedback signal input end of the controller The first end of the second resistor is connected to the first end of the sixth resistor and the source of the FET. The fogging device according to claim 1, wherein the controller (U1) is a QA8F12048N3 single chip microcomputer. The fogging device according to claim 1, wherein the frequency output module (U6) is a 46R064B chip. The fogging device according to claim 1, wherein the fogging device further has a fan that drives a mist flow generated by the fogging device, and the controller (U1) electrically connects the fan through a fan driving circuit. The fan driving circuit includes: a triode; a base of the triode is connected to a fan driving end of the controller, a collector of the triode is connected to the fan, and an emitter of the triode is grounded. The fogging device according to claim 1, wherein the fogging device is configured to connect the power supply of the external power module. The circuit includes: a second capacitor, a third capacitor, a three-terminal regulator (U4), and a first Zener diode, wherein the third capacitor is an electrolytic capacitor; and an input end of the three-terminal regulator is connected to the second The first end of the capacitor, the output end of the three-terminal regulator is connected to the anode of the third capacitor and the cathode of the first regulator. The fogging device according to claim 8, wherein the three-terminal regulator is 78L05. The fogging device according to any one of claims 1 to 8, wherein the fogging device is a humidifier or an aromatizer.

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