Atomizer circuit and atomizer

Abstract

The embodiment of the utility model provides an atomizer circuit and an atomizer, and relates to the technical field of atomizers. The atomizer circuit comprises an oscillation signal generating module, a frequency adjusting module and an atomizing sheet. The oscillation signal generation module is connected with the frequency adjusting module and the atomization sheet. According to the atomizer circuit, the frequency of the output signal of the oscillation signal generation module can be adjusted through the frequency adjusting module, so that the frequency of the output signal of the oscillation signal generation module is matched with the lead-free piezoelectric ceramic atomization piece, and the good atomization effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to an atomizer circuit. BACKGROUND

[0002] Compared with traditional compression type and heating type atomizers, piezoelectric atomizers are widely used in new type atomization equipment, especially medical atomizers, due to their high efficiency, uniformity, quietness, simple structure and easy miniaturization.

[0003] The core component of such a medical atomizer is a piezoelectric ceramic atomization sheet. In the prior art, the atomization sheet is obtained by attaching a metal sheet to the surface of a piezoelectric ceramic. The metal sheet has a certain number of holes for passing liquid. When working, the atomizer circuit provides a certain frequency of current to the piezoelectric ceramic ring sheet to make it vibrate at a certain frequency, and the liquid is squeezed out of the micro-holes and ultrasonic atomized.

[0004] Currently, the atomizer circuits on the market are usually designed for lead-based atomization sheets. The frequency of the lead-based atomizer circuit does not match the resonant frequency of the lead-free piezoelectric ceramic, resulting in poor atomization effect of the lead-free piezoelectric ceramic atomizer.

[0005] How to design a circuit to match the resonant frequency of the circuit with the lead-free piezoelectric ceramic atomization sheet is a technical problem to be solved. CONTENT OF THE INVENTION

[0006] The present application aims to provide an atomizer circuit and an atomizer to solve the technical problems of the atomizer circuit in the prior art.

[0007] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions.

[0008] In a first aspect, the embodiments of the present application provide an atomizer circuit, comprising an oscillation signal generation module, a frequency adjustment module and an atomization sheet.

[0009] The oscillation signal generation module is connected with the frequency adjustment module and the atomization sheet respectively.

[0010] The frequency adjustment module is used to adjust the frequency of the output signal of the oscillation signal generation module, so that the frequency of the output signal of the oscillation signal generation module matches the lead-free piezoelectric ceramic atomization sheet.

[0011] Optionally, the frequency adjustment module comprises a potentiometer.

[0012] The first end of the oscillation signal generation module is connected with the fixed end of the potentiometer, and the second end of the oscillation signal generation module is connected with the movable end of the potentiometer.

[0013] Optionally, the oscillation signal generation module comprises a first signal generation module and a signal conversion module.

[0014] The first signal generation module is connected with the frequency adjustment module; and the first signal generation module is connected with the atomizing piece through the signal conversion module.

[0015] The first signal generation module is configured to output a switch driving signal, and the switch driving signal is converted into an oscillation signal through the signal conversion module.

[0016] Optionally, in the case that the oscillation signal generation module comprises a first signal generation module and a signal conversion module, the frequency adjustment module comprises a potentiometer.

[0017] A first end of the first signal generation module is connected with a fixed end of the potentiometer, a second end of the first signal generation module is connected with a movable end of the potentiometer, and a third end of the first signal generation module is connected with the atomizing piece through the signal conversion module.

[0018] Optionally, the first signal generation module comprises a timer chip and a first capacitor.

[0019] A threshold input end of the timer chip and an output end of the timer chip are connected with the frequency adjustment module, respectively.

[0020] The threshold input end of the timer chip and a trigger end of the timer chip are connected with a first end of the first capacitor, and a second end of the first capacitor is grounded.

[0021] The output end of the timer chip is connected with the atomizing piece through the signal conversion module.

[0022] Optionally, the first signal generation module further comprises a second capacitor.

[0023] A control voltage end of the timer chip is connected with a first end of the second capacitor, and a second end of the second capacitor is grounded.

[0024] Optionally, in the case that the first signal generation module comprises a timer chip and a first capacitor, the frequency adjustment module comprises a potentiometer.

[0025] The output end of the timer chip is connected with a fixed end of the potentiometer, or the threshold input end of the timer chip is connected with a movable end of the potentiometer, or the output end of the timer chip is connected with the movable end of the potentiometer, and the threshold input end of the timer chip is connected with the fixed end of the potentiometer.

[0026] Optionally, the signal conversion module comprises a MOS tube, a resistance unit, a third capacitor and a first inductor.

[0027] The first signal generation module connects the control end of the MOS transistor through the resistance unit; the first end of the MOS transistor is grounded, and the second end of the MOS transistor is connected to the first end of the first inductor, and the second end of the first inductor is connected to a power supply;

[0028] The first end of the first inductor is connected to the first end of the third capacitor, the second end of the third capacitor is connected to the first end of the atomizing sheet, and the second end of the atomizing sheet is grounded.

[0029] Optionally, on the basis that the signal conversion module comprises a MOS transistor, a resistance unit, a third capacitor and a first inductor, the first signal generation module comprises a timer chip and a first capacitor;

[0030] The threshold input end of the timer chip and the output end of the timer chip are respectively connected to the frequency adjustment module;

[0031] The threshold input end of the timer chip and the trigger end of the timer chip are connected together with the first end of the first capacitor, and the second end of the first capacitor is grounded;

[0032] The output end of the timer chip is connected to the control end of the MOS transistor through the resistance unit.

[0033] In a second aspect, the embodiments of the present application provide an atomizer, which comprises the atomizer circuit of the first aspect.

[0034] Compared with the prior art, the present application has the following beneficial effects:

[0035] The atomizer circuit provided by the embodiments of the present application can adjust the frequency of the output signal of the oscillation signal generation module through the frequency adjustment module, so that the frequency of the output signal of the oscillation signal generation module matches the lead-free piezoelectric ceramic atomizing sheet, thereby achieving a good atomization effect. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0037] Figure 1 A schematic diagram of an atomizer circuit provided by the embodiments of the present application, which comprises an oscillation signal generation module, a frequency adjustment module and an atomizing sheet;

[0038] Figure 2A schematic diagram of an atomizer circuit including an oscillation signal generation module, a potentiometer and an atomizing piece is provided for an embodiment of the present application.

[0039] Figure 3 A schematic diagram of an atomizer circuit including an oscillation signal generation module, a potentiometer, a resistor and an atomizing piece is provided for an embodiment of the present application.

[0040] Figure 4 A schematic diagram of an atomizer circuit including a first signal generation module, a signal conversion module, a frequency adjustment module and an atomizing piece is provided for an embodiment of the present application.

[0041] Figure 5 A schematic diagram of an atomizer circuit including a first signal generation module, a signal conversion module, a potentiometer and an atomizing piece is provided for an embodiment of the present application.

[0042] Figure 6 A schematic diagram of an atomizer circuit using an NE555 chip is provided for an embodiment of the present application.

[0043] Figure 7 A schematic diagram of a capacitor connected to a CONT port of an NE555 chip is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. The described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application described in the accompanying drawings can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0046] In the description of the present application, it should be noted that:

[0047] The relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations;

[0048] "Connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium.

[0049] As Figure 1 Embodiments of the present application provide an atomizer circuit, which comprises an oscillation signal generation module, a frequency adjustment module and an atomizer.

[0050] The oscillation signal generation module, the frequency adjustment module and the atomizer have the following connection relationship: the oscillation signal generation module is connected with the frequency adjustment module and the atomizer respectively.

[0051] The function of the frequency adjustment module includes: adjusting the frequency of the output signal of the oscillation signal generation module, so that the frequency of the output signal of the oscillation signal generation module matches the lead-free piezoelectric ceramic atomizer.

[0052] The frequency adjustment module can be in the form of adjustable resistance, adjustable capacitance, etc. In an embodiment, the frequency adjustment module comprises a potentiometer.

[0053] In the case where the frequency adjustment module comprises a potentiometer, the way of adjusting the frequency of the output signal of the oscillation signal generation module includes: changing the resistance value of the potentiometer.

[0054] As Figure 2 The frequency adjustment module comprises a potentiometer, and the potentiometer has the following connection relationship: the moving terminal and one fixed terminal of the potentiometer are connected with two different ports of the oscillation signal generation module, i.e. the first terminal of the oscillation signal generation module is connected with the fixed terminal of the potentiometer, and the second terminal of the oscillation signal generation module is connected with the moving terminal of the potentiometer.

[0055] As Figure 3 The frequency adjustment module can further comprise a resistor, and the potentiometer and the resistor are connected in series, so as to prevent the potentiometer from being adjusted to a too small resistance value and causing short circuit effect.

[0056] As Figure 4 The oscillation signal generation module can comprise a first signal generation module and a signal conversion module.

[0057] The first signal generation module and the signal conversion module have the following connection relationship:

[0058] The first signal generation module is connected with the frequency adjustment module;

[0059] The first signal generation module is connected with the atomizer through the signal conversion module.

[0060] The function of the first signal generation module includes: outputting a switch driving signal.

[0061] The function of the signal conversion module includes: converting the switch driving signal into an oscillation signal through the signal conversion module.

[0062] As Figure 5 , the first signal generation module can include a timer chip U1 and a capacitor C2. Figure 4 The first end of the first signal generation module is connected to the fixed end of the potentiometer.

[0063] The second end of the first signal generation module is connected to the moving end of the potentiometer.

[0064] The third end of the first signal generation module is connected to the atomizing sheet through the signal conversion module.

[0065] As

[0066] , the first signal generation module can include a timer chip U1 and a capacitor C2. Figure 6

[0067] The timer chip U1 has the following connection relationship:

[0068] The threshold input end THRES of the timer chip U1 and the output end OUT of the timer chip U1 are connected to the frequency adjustment module.

[0069] The threshold input end THRES of the timer chip U1 and the trigger end TRIG of the timer chip U1 are connected to the first end of the capacitor C2, and the second end of the capacitor C2 is grounded.

[0070] The output end OUT of the timer chip U1 is connected to the atomizing sheet SP1 through the signal conversion module.

[0071] In an embodiment, the timer chip U1 can use NE555 chip. The atomizing sheet can use lead-free piezoelectric ceramic atomizer PIEZO, and the resonance frequency of the lead-free piezoelectric ceramic atomizer PIEZO can be 120 kHz. The resistance of the potentiometer PR1 can be 10KΩ.

[0072] For the embodiment using NE555 chip, each pin is as follows:

[0073] Pin 1 is connected to the negative ground GND.

[0074] Pin 2 is connected to the first end of the capacitor C2, and the second end of the capacitor C2 is grounded.

[0075] Pin 3 is connected to the second end of the potentiometer PR1 and the first end of the resistor unit R1, and the second end of the resistor unit R1 is connected to the gate of the MOS tube Q1.

[0076] Pin 4 is connected to the positive electrode VCC2 of the constant voltage DC power supply.

[0077] Pin 5 is connected to the first end of the capacitor C3, and the second end of the capacitor C3 is grounded. ​

[0078] Pin 6 connects the first terminal of potentiometer PR1 to the first terminal of capacitor C2;

[0079] Pin 7 is left unconnected;

[0080] Pin 8 is connected to the positive terminal VCC2 of the constant voltage DC power supply.

[0081] like Figure 7 The first signal generation module may also include capacitor C3; the control voltage terminal of timer chip U1 is connected to the first terminal of capacitor C3, and the second terminal of capacitor C3 is grounded.

[0082] The beneficial effects of capacitor C3 include: making the timer chip U1 work more stably.

[0083] like Figure 6 Based on the first signal generation module, which may include a timer chip U1, a potentiometer PR1 is used as a frequency adjustment module, with the following connection relationship:

[0084] The output terminal OUT of timer chip U1 is connected to the fixed terminal of potentiometer PR1;

[0085] The threshold input terminal THRES of timer chip U1 is connected to the moving terminal of potentiometer PR1.

[0086] You can also Figure 6 The moving and fixed terminals of potentiometer PR1 are reversed:

[0087] The output terminal OUT of timer chip U1 is connected to the moving terminal of potentiometer PR1;

[0088] The threshold input terminal THRES of timer chip U1 is connected to the fixed terminal of potentiometer PR1.

[0089] One implementation of the signal conversion module is as follows: Figure 6 The signal conversion module includes a MOSFET Q1, a resistor R1, a capacitor C1, and a first inductor L1.

[0090] In one embodiment, the MOSFET Q1 can be an IRLZ44N N-channel field-effect transistor.

[0091] like Figure 7 The MOSFET Q1, resistor R1, capacitor C1, and first inductor L1 are connected as follows:

[0092] The first signal generation module is connected to the control terminal of MOS transistor Q1 via resistor unit R1;

[0093] The first terminal of MOSFET Q1 is grounded, the second terminal of MOSFET Q1 is connected to the first terminal of the first inductor L1, and the second terminal of the first inductor L1 is connected to the power supply VCC2.

[0094] The first end of the first inductor L1 is connected to the first end of the capacitor C1, the second end of the capacitor C1 is connected to the first end of the atomizing sheet SP1, and the second end of the atomizing sheet SP1 is grounded.

[0095] Figure 7 In the illustrated embodiment, the circuit parameters can be selected as follows:

[0096] The inductor L1 is 680 μH;

[0097] The resistance unit R1 has a resistance of 10 Ω;

[0098] The capacitor C1 is 100 nF;

[0099] The capacitor C2 is 10 nF;

[0100] The capacitor C3 is 100 nF;

[0101] The positive electrode of the constant-voltage DC power supply VCC2 has a voltage value of 12 V.

[0102] In one embodiment, the power supply of the atomizer can use the same power supply VCC2 as the first inductor L1. The power supply can be a constant-voltage DC power supply.

[0103] Based on the above embodiment, the present embodiment further provides an atomizer, which comprises the atomizer circuit described above. By adjusting the frequency adjustment module in the atomizer circuit, the frequency of the output signal of the oscillation signal generation module can be adjusted, so that the frequency of the output signal of the oscillation signal generation module matches the lead-free piezoelectric ceramic atomizing sheet, thereby achieving a good atomization effect. When the atomizing sheet is replaced, other circuit structures do not need to be changed. For different models of atomizing sheets, the resonant frequency can be matched to achieve the best atomization effect.

[0104] In general, the present application proposes an atomizer circuit and an atomizer, which relate to the technical field of atomizers. The atomizer circuit comprises an oscillation signal generation module, a frequency adjustment module and an atomizing sheet. The oscillation signal generation module is connected to the frequency adjustment module and the atomizing sheet. The atomizer circuit can adjust the frequency of the output signal of the oscillation signal generation module through the frequency adjustment module, so that the frequency of the output signal of the oscillation signal generation module matches the lead-free piezoelectric ceramic atomizing sheet, thereby achieving a good atomization effect.

[0105] The device and system embodiments described above are only illustrative, and part or all of the modules can be selected to achieve the purpose of the present embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0106] The above merely provides the preferred embodiments of the present application, and the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed by the present application can be easily thought by any person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An atomizer circuit, characterized by, The oscillation signal generation module, the frequency adjustment module and the atomizing sheet are included. The oscillation signal generation module is connected with the frequency adjustment module and the atomizing sheet respectively. The frequency adjustment module is used for adjusting the frequency of the output signal of the oscillation signal generation module, so that the frequency of the output signal of the oscillation signal generation module matches the lead-free piezoelectric ceramic atomizing sheet.

2. The atomizer circuit of claim 1, wherein, The frequency adjustment module includes a potentiometer. The first end of the oscillation signal generation module is connected with the fixed end of the potentiometer, and the second end of the oscillation signal generation module is connected with the moving end of the potentiometer.

3. The atomizer circuit of claim 1, wherein, The oscillation signal generation module includes a first signal generation module and a signal conversion module. The first signal generation module is connected with the frequency adjustment module, and the first signal generation module is connected with the atomizing sheet through the signal conversion module. The first signal generation module is used for outputting a switch driving signal, and the switch driving signal is converted into an oscillation signal through the signal conversion module.

4. The atomizer circuit of claim 3, wherein, The frequency adjustment module includes a potentiometer. The first end of the first signal generation module is connected with the fixed end of the potentiometer, the second end of the first signal generation module is connected with the moving end of the potentiometer, and the third end of the first signal generation module is connected with the atomizing sheet through the signal conversion module.

5. The atomizer circuit of claim 3, wherein, The first signal generation module includes a timer chip and a first capacitor. The threshold input end of the timer chip and the output end of the timer chip are connected with the frequency adjustment module respectively. The threshold input end of the timer chip and the trigger end of the timer chip are connected with the first end of the first capacitor together, and the second end of the first capacitor is grounded. The output end of the timer chip is connected with the atomizing sheet through the signal conversion module.

6. The atomizer circuit of claim 5, wherein, The first signal generation module further includes a second capacitor. The control voltage end of the timer chip is connected with the first end of the second capacitor, and the second end of the second capacitor is grounded.

7. The atomizer circuit of claim 5, wherein, The frequency adjustment module includes a potentiometer. The output end of the timer chip is connected with the fixed end of the potentiometer, or the output end of the timer chip is connected with the moving end of the potentiometer, and the threshold input end of the timer chip is connected with the fixed end of the potentiometer.

8. The atomizer circuit of claim 3, wherein, The signal conversion module includes a MOS tube, a resistance unit, a third capacitor and a first inductor. The first signal generation module is connected with the control end of the MOS tube through the resistance unit, the first end of the MOS tube is grounded, the second end of the MOS tube is connected with the first end of the first inductor, and the second end of the first inductor is connected with a power supply. The first end of the first inductor is connected with the first end of the third capacitor, the second end of the third capacitor is connected with the first end of the atomizing sheet, and the second end of the atomizing sheet is grounded.

9. The atomizer circuit of claim 8, wherein, The first signal generation module includes a timer chip and a first capacitor. The threshold input end of the timer chip and the output end of the timer chip are connected with the frequency adjustment module respectively. The threshold input end of the timer chip and the trigger end of the timer chip are connected with the first end of the first capacitor together, and the second end of the first capacitor is grounded. The output terminal of the timer chip is connected to the control terminal of the MOS transistor through the resistance unit.

10. An atomizer characterized by, The nebulizer comprises a nebulizer circuit according to any one of claims 1 to 9.

Images