CN220252426U - Atomization drive device - Google Patents

Abstract

The utility model discloses an atomization driving device, which includes a main control circuit, a driving circuit electrically connected to the main control circuit, a peak detection circuit and an atomization piece. The peak signal output end of the peak detection circuit is connected to the The peak signal input terminal of the main control circuit is electrically connected, the driving signal output terminal of the main control circuit is electrically connected to the driving signal input terminal of the driving circuit, and the atomization control signal output terminal of the driving circuit is connected to the atomization The atomization control signal input end of the piece is electrically connected, and the frequency signal output end of the atomization piece is electrically connected to the frequency signal input end of the peak detection circuit. The utility model feeds back the atomization amount through the peak detection circuit to realize automatic adaptation to the working frequency of the atomizer piece and can adjust the atomization amount through the resistance. It has a simple structure and is convenient for adjustment.

Description

Atomization drive device

Technical field

The utility model relates to the field of atomization driving, in particular to an atomizing driving device.

Background technique

For sports venues with hard pavement such as outdoor basketball courts and tennis courts, whether the cement pavement or rubber pavement will appear partially concave after being used for a period of time, water will accumulate in the concave part of the pavement after rain, causing the court to not function properly. At present, water pushers are mainly used to remove water. Since this water removal method cannot completely remove the small amount of water remaining in the concave areas, people have begun to use atomization water removal to remove water.

Due to the inconsistent degree of depression in the concave parts of the road surface, the amount of accumulated water in the concave parts is different. For some concave parts with a large amount of water accumulation, high-frequency water removal is used to improve the water removal efficiency, while for some concave parts with less accumulated water, The concave part uses low frequency to remove water to reduce overall power consumption. However, the frequency of the existing atomizing water removal device is usually unadjustable during the working process or needs to be stopped for manual adjustment, which has low working efficiency and is not conducive to reducing power consumption; at the same time, the operator usually makes adjustments based on experience during the manual adjustment process. , it is impossible to accurately compare the amount of accumulated water with the working frequency of the atomized water removal device, resulting in the water removal frequency being too high or too low, which in turn affects the water removal efficiency and energy consumption.

In addition, the existing atomizing water removal device cannot detect the accumulated water in the concave portion in time during the water removal process. As a result, when the accumulated water is removed, it cannot be stopped in time, causing the atomizing water removing device to idle and increase energy consumption. , and after removing the water in the first recess, it is necessary to restart the machine when removing the water in the next recess, which is time-consuming and labor-intensive.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this utility model is to provide an atomization drive device to solve the problem that the existing atomization water removal device cannot adaptively adjust the working frequency, resulting in low working efficiency and power consumption. A circuit architecture is added.

In order to solve the above technical problems, one technical solution adopted by the present invention is to provide an atomization driving device, which includes a main control circuit and a driving circuit, a peak detection circuit and an atomization sheet electrically connected to the main control circuit. The peak signal output end of the peak detection circuit is electrically connected to the peak signal input end of the main control circuit, the drive signal output end of the main control circuit is electrically connected to the drive signal input end of the drive circuit, and the drive circuit The atomization control signal output end is electrically connected to the atomization control signal input end of the atomization piece, and the frequency signal output end of the atomization piece is electrically connected to the frequency signal input end of the peak detection circuit.

Further, the main control circuit includes switch SW1, chip U1, capacitor C1, resistor R1, resistor R3, and resistor R4;

The VDD pin of the chip U1 is connected to the supply voltage through the resistor R1, and the VDD pin of the chip U1 is also connected to the ground through the capacitor C1;

The VSS pin of the chip U1 is connected to ground;

The WS pin of the chip U1 is connected to ground through the resistor R3;

The EN pin of the chip U1 is grounded through the switch SW1, and the EN pin of the chip U1 is also electrically connected to the VDD pin of the chip U1 through the resistor R4;

The TEST pin of the chip U1 is electrically connected to the peak signal output terminal of the peak detection circuit;

The PWM pin of the chip U1 is electrically connected to the drive signal input terminal of the drive circuit.

Further, the drive circuit includes resistor R5, resistor R6, resistor R7, diode D1, MOS tube M1, capacitor C2 and transformer T1. One end of the resistor R5 is electrically connected to the PWM pin of the chip U1. The other end of the resistor R5 is electrically connected to the gate of the MOS tube M1. The gate of the MOS tube M1 is grounded through the resistor R6. The source of the MOS tube M1 is grounded through the resistor R7. The MOS tube M1 is grounded through the resistor R7. The source of M1 is also connected to the drain of the MOS tube M1 through the diode D1. The drain of the MOS tube M1 is also electrically connected to the atomization control signal input terminal of the atomization piece through the transformer T1. The capacitor One end of C2 is electrically connected between the transformer T1 and the drain of the MOS tube M1, and the other end is grounded.

Further, the atomization piece has a first atomization terminal WH1 and a second atomization terminal WH2 that work together;

The first end of the primary coil of the transformer T1 is connected to the drain of the MOS tube M1, and the second end of the primary coil of the transformer T1 is coupled to the fourth end of the secondary coil of the transformer T1 and then connected to the supply voltage. The third end and the fourth end of the secondary coil of the transformer T1 are electrically connected to the first atomization terminal WH1 and the second atomization terminal WH2 respectively.

Further, the peak detection circuit includes a resistor R8, a resistor R9, a resistor R10, and a resistor R11. One end of the resistor R8 is electrically connected to the frequency signal output end of the atomizer piece, and the other end of the resistor R8 is connected to the frequency signal output end of the atomizer piece. One end of the resistor R9 is electrically connected, the other end of the resistor R9 is grounded through the resistor R10, the resistor R11 is connected in parallel with the resistor R10, and the TEST pin of the chip U1 is connected between the resistor R9 and the resistor R10 and/or the resistor R10. Between R11.

Further, the resistor R10 and/or the resistor R11 are variable resistors or fixed value resistors.

Further, the atomization driving device further includes a water detection module electrically connected to the main control circuit, and the water level signal output end of the water detection module is electrically connected to the water level signal input end of the main control circuit.

Further, the water detection module is a water level sensor. The first end of the water level sensor is electrically connected to the WD pin of the chip U1. The second end of the water level sensor is used to sense the water level. The third end of the water level sensor end grounded.

Further, the atomization driving device further includes an indication circuit electrically connected to the main control circuit, and the indication signal input end of the indication circuit is electrically connected to the indication signal output end of the main control circuit.

Further, the indication circuit includes a light-emitting diode LED and a resistor R2. The LED pin of the chip U1 is electrically connected to the negative terminal of the light-emitting diode LED through the resistor R2. The positive terminal of the light-emitting diode LED is connected to the chip. VDD pin connection of U1.

The atomization driving device of the present utility model has at least the following beneficial effects: the utility model automatically adapts to the working frequency of the atomizing sheet by setting the chip to receive the atomization amount fed back by the atomizing sheet, and adjusts the division of the corresponding resistance in the peak detection circuit. The pressure changes the amount of atomization, so that the atomizer sheet can adaptively adjust the working frequency according to the amount of accumulated water, thereby adapting to the water removal of different amounts of accumulated water, improving the water removal efficiency and reducing the power consumption of water removal. In addition, the utility model is also equipped with a water detection module to detect whether there is water in the external environment to control the atomizer piece to automatically work when there is water and automatically stop when there is no water, thereby ensuring complete water removal and realizing water-free protection.

Description of drawings

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the attached picture:

Figure 1 is a circuit diagram of an embodiment of the atomization driving device of the present invention.

Detailed ways

The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations. Various details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other as long as there is no conflict.

Please refer to Figure 1. The atomization driving device of the present invention includes a main control circuit 1, a driving circuit 2 electrically connected to the main control circuit 1, a peak detection circuit 3 and an atomization piece 4. The peak signal output end of the peak detection circuit 3 is electrically connected to the peak signal input end of the main control circuit 1. The peak detection circuit 3 is used to detect the real-time operating frequency of the atomizer sheet 4. The main control circuit 1 Receive the real-time operating frequency of the atomizer sheet 4; the drive signal output end of the main control circuit 1 is electrically connected to the drive signal input end of the drive circuit 2, and the drive circuit 2 is used to operate according to the main control circuit 1. Receive the real-time operating frequency to drive the atomization piece 4 to work; the atomization control signal output end of the drive circuit 2 is electrically connected to the atomization control signal input end of the atomization piece 4, and the atomization piece 4 is The frequency signal output end is electrically connected to the frequency signal input end of the peak detection circuit 3. The atomization piece 4 is used to vibrate under the driving circuit 2 to achieve water removal. At the same time, the atomization piece 4 is removing water. During the process, the current operating frequency can be fed back to the peak detection circuit 3 in real time for adaptive adjustment of the operating frequency.

The main control circuit 1 can provide an oscillation signal for the operation of the atomizer sheet 4; the main control circuit 1 includes a switch SW1, a chip U1, a capacitor C1, a resistor R1, a resistor R3, and a resistor R4; in this embodiment, the Chip U1 is implemented using an atomization chip, and its model is preferably HK9002F08K1S8. The VDD pin of the chip U1 (that is, the positive power input pin VDD of the chip U1) is connected to the power supply voltage through the resistor R1 to power the chip U1; the power supply voltage is 4.5-5V. In this embodiment, according to the For the model of chip U1, the supply voltage is preferably 5V. The positive power input pin VDD of the chip U1 is also connected to ground through the capacitor C1, where the capacitor C1 is used for filtering. The VSS pin of the chip U1 (that is, the negative power input pin VSS of the chip U1) is connected to ground. The WS pin of the chip U1 is connected to ground through the resistor R3. The EN pin of the chip U1 serves as the atomization start control pin and is grounded through the switch SW1. The EN pin of the chip U1 is also connected to the positive power input pin VDD of the chip U1 through the resistor R4. Electrical connection, when the switch SW1 is turned off, the EN pin of the chip U1 detects a high level to keep the chip U1 and peripheral circuits closed, and when the switch SW1 is pressed, the EN pin of the chip U1 detects a low level Then trigger the whole circuit to start working. The TEST pin of the chip U1 serves as the fog amount feedback pin (that is, the peak signal input terminal of the main control circuit 1) and is electrically connected to the peak signal output terminal of the peak detection circuit 3 to receive detection from the peak detection circuit 3. to the real-time operating frequency. The PWM pin of the chip U1 serves as the atomization drive signal output pin (that is, the drive signal output end of the main control circuit 1) and is electrically connected to the drive signal input end of the drive circuit 2 to set the corresponding operating frequency to The pulse is transmitted to the drive circuit 2.

The drive circuit 2 drives the atomizer piece 4 to work after receiving the oscillation signal from the main control circuit 1. The drive circuit 2 includes a resistor R5, a resistor R6, a resistor R7, a diode D1, a MOS tube M1, a capacitor C2 and a transformer T1. . One end of the resistor R5 serves as the drive signal input end of the drive circuit 2 and is electrically connected to the PWM pin of the chip U1. The other end of the resistor R5 is electrically connected to the gate of the MOS tube M1. The MOS tube The gate of M1 is grounded through the resistor R6, the source of the MOS tube M1 is grounded through the resistor R7, and the source of the MOS tube M1 is also connected to the drain of the MOS tube M1 through the diode D1. Specifically , the positive terminal of the diode D1 is connected to the source of the MOS tube, and the negative terminal of the diode D1 is connected to the drain of the MOS tube; the MOS tube is used to be turned on or off to drive under the driving signal output by the chip U1 The atomizing piece 4 works in a timely manner, and the working frequency of the atomizing piece 4 can be adjusted by adjusting the pressure drop on the MOS tube. The drain of the MOS tube M1 is also electrically connected to the atomization control signal input terminal of the atomization piece 4 through the transformer T1, and one end of the capacitor C2 is electrically connected between the transformer T1 and the drain of the MOS tube M1. The other end is connected to ground, and the capacitor C2 is used for filtering. In this embodiment, the MOS transistor is preferably implemented using an NMOS transistor.

The first end of the primary coil of the transformer T1 is connected to the drain of the MOS tube M1, and the second end of the primary coil of the transformer T1 is coupled to the fourth end of the secondary coil of the transformer T1 and then connected to a 5V supply voltage. , the third end and the fourth end of the secondary coil of the transformer T1 serve as the atomization control signal output end of the drive circuit 2 and are electrically connected to the atomization control signal input end of the atomization piece 4 to transform the voltage. The atomizer piece 4 is input, and the atomizer piece 4 is driven to vibrate.

The peak detection circuit 3 is used to feed back the amount of atomization so that the main control circuit 1 can adapt its operating frequency and adjust the amount of atomization; the peak detection circuit 3 includes a resistor R8, a resistor R9, a resistor R10, and a resistor R11. One end of the resistor R8 serves as the frequency signal input end of the peak detection circuit 3 and is electrically connected to the frequency signal output end of the atomizer piece 4. The other end of the resistor R8 is electrically connected to one end of the resistor R9. The other end of the resistor R9 is grounded through the resistor R10. The resistor R11 is connected in parallel with the resistor R10. The TEST pin of the chip U1 is connected between the resistor R9 and the resistor R10 and/or the resistor R11. The peak detection circuit 3 The peak signal output terminal is formed between the resistor R9 and the resistor R10 and/or the resistor R11. The resistor R10 and the resistor R11 are used for voltage division. In this embodiment, the resistor R10 is a variable resistor. It should be understood that the resistor R10 and the resistor R11 are not limited to one resistor design. The resistor R10 and/or the resistor R11 It can be a variable resistor or a fixed-value resistor. Of course, the resistor R10 and the resistor R11 can also be replaced by a variable resistor, so that the atomization amount of the atomizing piece 4 can be adjusted by adjusting the resistance of the resistor R10 and the resistor R11.

The atomization piece 4 has a first atomization terminal WH1 and a second atomization terminal WH2 that work together, and the first atomization terminal WH1 and the second atomization terminal WH2 jointly serve as the atomization control signal of the atomization piece 4 The input end is electrically connected to the third end and the fourth end of the secondary coil of the transformer T1 to receive the driving signal and work in a timely manner. In this embodiment, the atomizing piece 4 can be implemented using existing technology, such as the atomizing piece 4 with a frequency of 150KHZ, which can generate 1.7Mhz high-frequency oscillation during operation to break up the liquid water molecular structure. Produce natural and elegant water mist.

In order to ensure complete water removal, as a preferred way of this embodiment, a water detection module 5 is also provided that is electrically connected to the main control circuit 1. The water level signal output end of the water detection module 5 is connected to the main control circuit 1. The water level signal input end of the control circuit 1 is electrically connected. The detection module is used to sense the water level to control the atomization sheet 4 to stop through the main control circuit 1 when there is no water or to control the atomization sheet 4 through the main control circuit 1 when there is water. 4 works automatically.

In this embodiment, the water detection module 5 is a water level sensor, and the first end of the water level sensor is a water level signal output end, which is connected to the water level signal input end of the main control circuit 1 (ie, the WD pin of the chip U1 ) is electrically connected, the second end of the water level sensor is used to sense the water level, and the third end of the water level sensor is grounded. The water level sensor is an existing module that can monitor and measure the water level. It mainly uses the current amplification principle of the triode. When the liquid level height causes the base of the triode to conduct with the positive electrode of the power supply, between the base and the emitter of the triode A current of a certain size will be generated. At this time, a current with a certain amplification factor will be generated between the collector and emitter of the triode. This current will generate a characteristic voltage through the resistor of the emitter, which will be collected by the AD converter; when the When the water level sensor detects that there is no water, it will automatically reduce the operating current. When the water level sensor detects that there is water, the signal output pin PWM of the chip U1 will output a PWM signal and automatically resume atomization.

In order to facilitate the judgment of whether the circuit is working, as a preferred way of this embodiment, an indication circuit 6 is also provided that is electrically connected to the main control circuit 1. The indication signal input end of the indication circuit 6 is connected to the indication signal input end of the main control circuit 1. The indication signal output end is electrically connected to indicate whether the main control circuit 1 is working normally. The indication circuit 6 includes a light-emitting diode LED and a resistor R2. The indication signal input terminal is formed at the positive end of the light-emitting diode LED. The positive end of the light-emitting diode LED is connected to the indication signal output end of the main control circuit 1 ( That is, the VDD pin of the chip U1 is electrically connected, and the LED pin of the chip U1 is electrically connected to the negative terminal of the light-emitting diode LED through the resistor R2; when the main control circuit 1 is working, the light-emitting diode LED Flashing or always on; when the main control circuit 1 is not working, the light-emitting diode LED is in an extinguished state.

The working principle of this utility model is as follows:

When using this atomization drive device to remove accumulated water on hard roads such as outdoor basketball courts and tennis courts, the 5V power supply voltage is connected. The power supply voltage is divided by resistor R1 and then sent to the positive power input pin of the chip U1. VDD, for chip U1 to work. Press the switch SW1 connected to the atomization start control pin EN of the chip, and chip U1 starts to work. At this time, the second end of the water level sensor detects whether there is water outside, and the first end of the water level sensor The water level signal is input from the WD pin of the chip U1 to the chip U1; when there is water, the chip U1 outputs a driving signal to the driving circuit 2 through the PWM pin, and the driving signal passes through the MOS tube M1 It is filtered by the capacitor C2 and boosted by the transformer T1 to form an atomization control signal that is input to the first atomization terminal WH1 and the second atomization terminal WH2. At the same time, a voltage of 5V is provided to the second atomization terminal WH2. The working piece 4 generates 1.7Mhz high-frequency oscillation, which can break up the molecular structure of liquid water to produce natural and elegant water mist; if the resistance of the variable resistor R10 is increased, the amount of atomization will become smaller, and vice versa. The amount becomes larger; the amount of atomization will be fed back to the TEST pin of the chip U1 through the peak signal, and the frequency of the PWM pin output signal will be adjusted internally according to the peak signal; when the water is completely removed, the second output of the water level sensor will When the first terminal of the water level sensor detects no water, the first terminal of the water level sensor inputs the water level signal from the WD pin of the chip U1 to the chip U1. The internal working current of the chip U1 automatically reduces so that the entire atomization drive device stops working or operates at a lower level. The power consumption is on standby until the second end of the water level sensor detects water, and then automatically starts again to remove water.

The atomization driving device of the present invention has the following beneficial effects: it receives the feedback atomization amount through the TEST pin of the chip U1 to automatically adapt to the working frequency of the atomization piece, and adjusts the points of the corresponding resistor R10 and resistor R11 in the peak detection circuit. The pressure changes the amount of atomization, so that the atomization piece can adaptively adjust the working frequency of the atomization piece according to the amount of accumulated water, thereby adapting to the water removal of different amounts of accumulated water, improving the water removal efficiency and reducing the power consumption of water removal. ; At the same time, a water detection module is also set up to detect whether there is water in the external environment through a water level sensor to control the atomizer sheet to automatically work when there is water and automatically stop when there is no water, thereby ensuring complete water removal and realizing water-free protection, and the utility model The circuit structure is relatively simple and easy to adjust.

The above embodiments only express the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be determined by the appended claims. The key point of protection of this utility model lies not in the program, but in the overall structure and circuit architecture of the entire atomization drive device, and does not involve computer programs.

Claims (10)

1. An atomization driving device, characterized in that it includes a main control circuit and a driving circuit electrically connected to the main control circuit, a peak detection circuit and an atomization piece, and the peak signal output end of the peak detection circuit is connected to the The peak signal input end of the main control circuit is electrically connected, the drive signal output end of the main control circuit is electrically connected to the drive signal input end of the drive circuit, and the atomization control signal output end of the drive circuit is connected to the atomizer. The atomization control signal input end of the atomization piece is electrically connected, and the frequency signal output end of the atomization piece is electrically connected to the frequency signal input end of the peak detection circuit. 2. The atomization driving device according to claim 1, characterized in that the main control circuit includes a switch SW1, a chip U1, a capacitor C1, a resistor R1, a resistor R3, and a resistor R4; The VDD pin of the chip U1 is connected to the supply voltage through the resistor R1, and the VDD pin of the chip U1 is also connected to the ground through the capacitor C1; The VSS pin of the chip U1 is connected to ground; The WS pin of the chip U1 is connected to ground through the resistor R3; The EN pin of the chip U1 is grounded through the switch SW1, and the EN pin of the chip U1 is also electrically connected to the VDD pin of the chip U1 through the resistor R4; The TEST pin of the chip U1 is electrically connected to the peak signal output terminal of the peak detection circuit; The PWM pin of the chip U1 is electrically connected to the drive signal input terminal of the drive circuit. 3. The atomization driving device according to claim 2, characterized in that the driving circuit includes a resistor R5, a resistor R6, a resistor R7, a diode D1, a MOS tube M1, a capacitor C2 and a transformer T1, and the resistor R5 One end is electrically connected to the PWM pin of the chip U1, and the other end of the resistor R5 is electrically connected to the gate of the MOS tube M1. The gate of the MOS tube M1 is grounded through the resistor R6. The MOS The source of the tube M1 is connected to the ground through the resistor R7. The source of the MOS tube M1 is also connected to the drain of the MOS tube M1 through the diode D1. The drain of the MOS tube M1 is also connected to the fog through the transformer T1. The atomization control signal input end of the atomizer is electrically connected, one end of the capacitor C2 is electrically connected between the transformer T1 and the drain of the MOS tube M1, and the other end is grounded. 4. The atomization driving device according to claim 3, wherein the atomization piece has a first atomization terminal WH1 and a second atomization terminal WH2 that work together; The first end of the primary coil of the transformer T1 is connected to the drain of the MOS tube M1, and the second end of the primary coil of the transformer T1 is coupled to the fourth end of the secondary coil of the transformer T1 and then connected to the supply voltage. The third end and the fourth end of the secondary coil of the transformer T1 are electrically connected to the first atomization terminal WH1 and the second atomization terminal WH2 respectively. 5. The atomization driving device according to claim 2, wherein the peak detection circuit includes a resistor R8, a resistor R9, a resistor R10, and a resistor R11, and one end of the resistor R8 is connected to the frequency of the atomizer sheet. The signal output end is electrically connected, the other end of the resistor R8 is electrically connected to one end of the resistor R9, the other end of the resistor R9 is grounded through the resistor R10, the resistor R11 is connected in parallel with the resistor R10, and the chip U1 The TEST pin is connected between resistor R9 and resistor R10 and/or resistor R11. 6. The atomization driving device according to claim 5, characterized in that the resistor R10 and/or the resistor R11 are variable resistors or fixed-value resistors. 7. The atomization driving device according to any one of claims 2 to 6, further comprising a water detection module electrically connected to the main control circuit, and the water level signal output end of the water detection module is connected to the water level signal output end of the water detection module. The water level signal input terminal of the main control circuit is electrically connected. 8. The atomization driving device according to claim 7, characterized in that the water detection module is a water level sensor, the first end of the water level sensor is electrically connected to the WD pin of the chip U1, and the water level sensor The second terminal senses the water level, and the third terminal of the water level sensor is grounded. 9. The atomization driving device according to any one of claims 2 to 6, further comprising an indication circuit electrically connected to the main control circuit, and the indication signal input end of the indication circuit is connected to the main control circuit. The indication signal output terminal of the control circuit is electrically connected. 10. The atomization driving device according to claim 9, characterized in that the indication circuit includes a light-emitting diode LED and a resistor R2, and the LED pin of the chip U1 is connected to the light-emitting diode LED through the resistor R2. terminal is electrically connected, and the positive terminal of the light-emitting diode LED is connected to the VDD pin of the chip U1.