Humidification control circuit of ultrasonic nebulizer

Abstract

The utility model relates to the technical field of atomizers, in particular to an ultrasonic atomizer humidification control circuit and a power supply, and the power supply comprises a DC5V power supply and a DC3V power supply. The water level detection circuit comprises a dry reed H, a magnet T, a resistor R1, a variable resistor RT1 and a double-voltage comparator LM393; one end of the dry reed H is electrically connected with DC5V, the other end of the dry reed H is electrically connected with a pin 3 of the double-voltage comparator LM393 through a resistor R1, and a magnet T is arranged on one side of the dry reed; one end of the variable resistor RT1 is electrically connected with DC5V, the other end of the variable resistor RT1 is grounded, and the adjustable end of the variable resistor RT1 is electrically connected with a pin 3 and a pin 2 of the double-voltage comparator LM393.

Description

Technical Field

[0001] This utility model relates to the field of atomizer technology, specifically to a humidification control circuit for an ultrasonic atomizer. Background Technology

[0002] Ultrasonic atomizers produce an atomization effect through high-frequency electronic oscillations, typically at frequencies of 1.7MHz or 2.4MHz, far exceeding the range of human hearing. The atomizing plate, as the core component, breaks down liquid water molecules through high-frequency resonance, creating a naturally drifting water mist without the need for heating or the addition of any chemical reagents. Ultrasonic atomizers utilize the directional pressure of ultrasound to cause the liquid surface to bulge, creating cavitation around the bulging surface and atomizing the liquid into small-molecule vapors.

[0003] However, current ultrasonic atomizers are not very convenient to use because they cannot detect water level drops in a timely manner and the atomization size is not easy to adjust. Utility Model Content

[0004] This invention provides a humidification control circuit for an ultrasonic atomizer to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An ultrasonic atomizer humidification control circuit includes:

[0007] The power supply includes DC5V and DC3V;

[0008] A water level detection circuit includes: a reed switch H, a magnet T, a resistor R1, a variable resistor RT1, and a dual voltage comparator LM393; one end of the reed switch H is electrically connected to DC 5V, and the other end of the reed switch H is electrically connected to pin 3 of the dual voltage comparator LM393 via the resistor R1; a magnet T is provided on one side of the reed switch; one end of the variable resistor RT1 is electrically connected to DC 5V, and the other end of the variable resistor RT1 is grounded; the adjustable terminal of the variable resistor RT1 is electrically connected to pin 3 and pin 2 of the dual voltage comparator LM393 respectively.

[0009] An atomizing circuit includes a capacitor C1, an inductor L1, a resistor R4, a capacitor C2, an atomizing plate Y, a capacitor C3, a transistor Q2, and an inductor L2. One end of capacitor C1 is electrically connected to DC 5V, and the other end of capacitor C1 is electrically connected to the base of transistor Q2 via inductor L1, resistor R4, and resistor R5. One end of the atomizing plate Y is electrically connected to the collector of transistor Q2, and the other end of the atomizing plate Y is electrically connected to capacitor C2 and resistor R5. Capacitor C3 is connected to both the collector and base of transistor Q2, and the emitter of transistor Q2 is grounded via inductor L2.

[0010] As a preferred embodiment of this utility model, the humidification control circuit further includes a display circuit, which includes a working display circuit and a water shortage display circuit; one end of the working display circuit and one end of the water shortage display circuit are both electrically connected to DC3.3V, and the other end of the working display circuit and the other end of the water shortage display circuit are both electrically connected to pin 1 of the dual voltage comparator LM393.

[0011] As a preferred embodiment of this utility model, the working display circuit includes a resistor R2 and an LED LD2; one end of the resistor R2 is connected to DC3.3V, and the other end of the resistor R2 is electrically connected to pin 1 of the LM393 via the LED LD2.

[0012] As a preferred embodiment of this utility model, the water shortage display circuit includes a resistor R3 and an LED lamp LD1; one end of the resistor R3 is electrically connected to DC3.3V, and the other end of the resistor R3 is electrically connected to pin 1 of the LM393 via the LED lamp LD1.

[0013] As a preferred embodiment of this utility model, the humidification control circuit further includes an atomization adjustment circuit, which is configured as an adjustable resistor RT2. One end of the adjustable resistor RT2 is electrically connected to the inductor L1, and the other end and the adjustable end of the adjustable resistor RT2 are both electrically connected to DC5V.

[0014] As a preferred embodiment of this utility model, pins 7 and 6 of the dual voltage comparator LM393 are electrically connected, pin 8 of the dual voltage comparator LM393 is electrically connected to DC5V, and pin 4 of the dual voltage comparator LM393 is grounded.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) In this utility model, when the atomizer has sufficient water, the magnet T approaches the reed H, and the reed H closes under the action of the magnetic field. At the same time, IN+ is at a high potential. When IN+ is greater than IN-, pin 1 outputs a low level and LED LD2 lights up, which means that the atomizer has sufficient water. When the atomizer has low water, the magnet T disengages from the reed H, the reed H opens, IN+ is at a low potential, and pin 1 outputs a high level and LED LD1 lights up, which means that the atomizer is short of water.

[0017] (2) In this utility model, when it is necessary to adjust the size of the atomizer, the resistance value of resistor RT2 is adjusted, which will adjust the frequency of capacitor C1, inductor L1, capacitor C2 and atomizer plate; thereby adjusting the size of the atomizer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the circuit working principle of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] For an example, please refer to... Figure 1 This utility model provides a technical solution:

[0021] An ultrasonic atomizer humidification control circuit includes:

[0022] The power supply includes DC5V and DC3V;

[0023] A water level detection circuit includes: a reed switch H, a magnet T, a resistor R1, a variable resistor RT1, and a dual voltage comparator LM393; one end of the reed switch H is electrically connected to DC 5V, and the other end of the reed switch H is electrically connected to pin 3 of the dual voltage comparator LM393 via the resistor R1; a magnet T is provided on one side of the reed switch; one end of the variable resistor RT1 is electrically connected to DC 5V, and the other end of the variable resistor RT1 is grounded; the adjustable terminal of the variable resistor RT1 is electrically connected to pin 3 and pin 2 of the dual voltage comparator LM393 respectively.

[0024] An atomizing circuit includes a capacitor C1, an inductor L1, a resistor R4, a capacitor C2, an atomizing plate Y, a capacitor C3, a transistor Q2, and an inductor L2. One end of capacitor C1 is electrically connected to DC 5V, and the other end of capacitor C1 is electrically connected to the base of transistor Q2 via inductor L1, resistor R4, and resistor R5. One end of the atomizing plate Y is electrically connected to the collector of transistor Q2, and the other end of the atomizing plate Y is electrically connected to capacitor C2 and resistor R5. Capacitor C3 is connected to both the collector and base of transistor Q2, and the emitter of transistor Q2 is grounded via inductor L2.

[0025] Among them, magnet T is placed in the water tank to sense the water level. When the water level of the atomizer is sufficient, magnet T approaches reed H, and reed H closes under the action of the magnetic field. At the same time, IN+ is at a high potential. When IN+ is greater than IN-, pin 1 outputs a low level.

[0026] When the atomizer water level drops, magnet T disengages from reed H, reed H disconnects, IN+ becomes low, and pin 1 outputs a high level.

[0027] Reference Figure 1 In this embodiment, the humidification control circuit further includes a display circuit, which includes a working display circuit and a water shortage display circuit. One end of the working display circuit and one end of the water shortage display circuit are both electrically connected to DC 3.3V, and the other ends of the working display circuit and the water shortage display circuit are both electrically connected to pin 1 of the dual voltage comparator LM393. The working display circuit includes a resistor R2 and an LED LD2. One end of the resistor R2 is connected to DC 3.3V, and the other end of the resistor R2 is electrically connected to pin 1 of the LM393 via the LED LD2. The water shortage display circuit includes a resistor R3 and an LED LD1. One end of the resistor R3 is electrically connected to DC 3.3V, and the other end of the resistor R3 is electrically connected to pin 1 of the LM393 via the LED LD1.

[0028] Specifically, when the atomizer has sufficient water level, the magnet T approaches the reed switch H, causing the reed switch H to close under the influence of the magnetic field. At the same time, IN+ is at a high potential. When IN+ is greater than IN-, pin 1 outputs a low level, and LED LD2 lights up, indicating that the atomizer has sufficient water level. When the atomizer water level drops, the magnet T disengages from the reed switch H, causing the reed switch H to open. IN+ is at a low potential, and pin 1 outputs a high level, and LED LD1 lights up, indicating that the atomizer is low on water.

[0029] Reference Figure 1In this embodiment, the humidification control circuit further includes an atomization adjustment circuit, which is configured as an adjustable resistor RT2. One end of the adjustable resistor RT2 is electrically connected to the inductor L1, and the other end and the adjustable end of the adjustable resistor RT2 are both electrically connected to DC5V.

[0030] Specifically, when it is necessary to adjust the atomization size, the resistance value of resistor RT2 is adjusted, which in turn adjusts the frequency of capacitor C1, inductor L1, capacitor C2, and atomizing plate, thereby adjusting the atomization size.

[0031] Reference Figure 1 In this embodiment, pins 7 and 6 of the dual voltage comparator LM393 are electrically connected, pin 8 of the dual voltage comparator LM393 is electrically connected to DC5V, and pin 4 of the dual voltage comparator LM393 is grounded.

[0032] The working principle of this utility model:

[0033] (1) In this utility model, when the atomizer has sufficient water level, the magnet T approaches the reed H, and the reed H closes under the action of the magnetic field. At the same time, IN+ is at a high potential. When IN+ is greater than IN-, pin 1 outputs a low level and LED LD2 lights up, which means that the atomizer has sufficient water level. When the atomizer has low water level, the magnet T disengages from the reed H, the reed H opens, IN+ is at a low potential, and pin 1 outputs a high level and LED LD1 lights up, which means that the atomizer is short of water.

[0034] (2) In this utility model, when it is necessary to adjust the size of the atomizer, the resistance value of resistor RT2 is adjusted, which will adjust the frequency of capacitor C1, inductor L1, capacitor C2 and atomizer plate; thereby adjusting the size of the atomizer.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A humidification control circuit for an ultrasonic atomizer, comprising: The power supply includes DC5V and DC3V; A water level detection circuit includes: a reed switch H, a magnet T, a resistor R1, a variable resistor RT1, and a dual voltage comparator LM393; one end of the reed switch H is electrically connected to DC 5V, and the other end of the reed switch H is electrically connected to pin 3 of the dual voltage comparator LM393 via the resistor R1; a magnet T is provided on one side of the reed switch; one end of the variable resistor RT1 is electrically connected to DC 5V, and the other end of the variable resistor RT1 is grounded; the adjustable terminal of the variable resistor RT1 is electrically connected to pin 3 and pin 2 of the dual voltage comparator LM393 respectively. An atomizing circuit includes a capacitor C1, an inductor L1, a resistor R4, a capacitor C2, an atomizing plate Y, a capacitor C3, a transistor Q2, and an inductor L2. One end of capacitor C1 is electrically connected to DC 5V, and the other end of capacitor C1 is electrically connected to the base of transistor Q2 via inductor L1, resistor R4, and resistor R5. One end of the atomizing plate Y is electrically connected to the collector of transistor Q2, and the other end of the atomizing plate Y is electrically connected to capacitor C2 and resistor R5. Capacitor C3 is connected to both the collector and base of transistor Q2, and the emitter of transistor Q2 is grounded via inductor L2.

2. The humidification control circuit for an ultrasonic atomizer according to claim 1, characterized in that: The humidification control circuit also includes a display circuit, which includes a working display circuit and a water shortage display circuit. One end of the working display circuit and one end of the water shortage display circuit are electrically connected to DC3.3V, and the other end of the working display circuit and the other end of the water shortage display circuit are electrically connected to pin 1 of the dual voltage comparator LM393.

3. The humidification control circuit for an ultrasonic atomizer according to claim 2, characterized in that: The working display circuit includes a resistor R2 and an LED LD2; one end of the resistor R2 is connected to DC 3.3V, and the other end of the resistor R2 is electrically connected to pin 1 of the LM393 via the LED LD2.

4. The humidification control circuit for an ultrasonic atomizer according to claim 2, characterized in that: The water shortage display circuit includes a resistor R3 and an LED LD1; one end of the resistor R3 is electrically connected to DC 3.3V, and the other end of the resistor R3 is electrically connected to pin 1 of the LM393 via the LED LD1.

5. The humidification control circuit for an ultrasonic atomizer according to claim 1, characterized in that: The humidification control circuit also includes an atomization adjustment circuit, which is configured as an adjustable resistor RT2. One end of the adjustable resistor RT2 is electrically connected to the inductor L1, and the other end and the adjustable end of the adjustable resistor RT2 are both electrically connected to DC5V.

6. The humidification control circuit for an ultrasonic atomizer according to claim 1, characterized in that: Pins 7 and 6 of the dual voltage comparator LM393 are electrically connected, pin 8 of the dual voltage comparator LM393 is electrically connected to DC5V, and pin 4 of the dual voltage comparator LM393 is grounded.

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