CN215531660U - Atomizer - Google Patents

Abstract

The utility model relates to the field of atomization devices and discloses an atomizer. The atomizer includes the liquid cup, the atomizing piece, a pedestal, the top shell, liquid detection circuitry, locate controller and atomizing piece drive circuit in the top shell, the liquid cup provides the required liquid of atomizing for the atomizing piece, the top shell is located between liquid cup and the base, atomizing piece drive circuit is connected with atomizing piece and controller respectively, atomizing piece drive circuit is under the control of controller, provide drive voltage to the atomizing piece, liquid detection circuitry includes metal response piece and signal conditioning circuit, the inner wall that the top shell was located to the metal response piece is close to one side of liquid cup, signal conditioning circuit is connected with metal response piece and controller respectively. Because the metal induction sheet for detecting the liquid does not need to be in contact with the liquid in the liquid cup, the liquid in the liquid cup can be prevented from being polluted, and the accuracy of liquid detection can be ensured.

Description

Atomizer

Technical Field

The utility model relates to the technical field of atomization devices, in particular to an atomizer.

Background

The atomizer is a device with liquid atomization, in the atomizer, be provided with the liquid cup and come to provide liquid for the atomizing piece, the atomizing piece is with liquid atomization, the liquid of liquid cup reduces along with the increase of atomization time, liquid when the liquid cup uses up the back, if atomizing piece continuation work this moment, the atomizing piece can burn the damage futilely, then, detect the liquid of liquid cup through setting up liquid detection circuitry, detect the liquid of liquid cup and use up the back, give control system a signal, in order to stop the atomizer work, thereby can avoid atomizing piece to burn the damage futilely.

At present, a liquid detection circuit arranged in an atomizer is generally in a probe type, and a probe extends into a liquid cup and is in direct contact with liquid in the liquid cup, so that whether the liquid exists in the liquid cup can be detected. Because the liquid cup can be filled with different liquids, the liquid has the risk of being polluted by the probe, and because the viscosities of the different liquids are different, the probe can be coated by the more viscous liquid, at the moment, the accuracy of liquid detection can be influenced, and the cleaning is not facilitated. Therefore, the conventional liquid detection method has disadvantages, and it is necessary to improve the conventional liquid detection method.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an atomizer, which can solve the technical problem that the liquid detection effect of the atomizer in the related art is not ideal.

The embodiment of the utility model provides the following technical scheme for solving the technical problems:

in a first aspect, embodiments of the present invention provide a nebulizer, comprising:

a liquid cup for storing liquid;

an atomizing member for atomizing the liquid;

a base;

the top shell is arranged between the liquid cup and the base;

the controller is arranged in the top shell;

the atomization piece driving circuit is arranged in the top shell and is respectively connected with the atomization piece and the controller;

The liquid detection circuit comprises a metal induction sheet and a signal conditioning circuit, the metal induction sheet is arranged on one side, close to the liquid cup, of the inner wall of the top shell, and the signal conditioning circuit is connected with the metal induction sheet and the controller respectively.

Optionally, the liquid cup includes stock solution storehouse and transition storehouse, the transition storehouse with stock solution storehouse intercommunication, the transition storehouse is used for with the liquid in stock solution storehouse is provided the atomizing piece.

Optionally, the signal conditioning circuit comprises:

the coupling circuit is connected with the metal induction sheet and is used for coupling the oscillation signal sensed by the metal induction sheet to obtain an oscillation voltage signal;

the rectifying circuit is connected with the coupling circuit and is used for rectifying the oscillating voltage signal to obtain a rectified voltage signal;

and the filter circuit is respectively connected with the rectifying circuit and the controller and is used for processing the rectified voltage signal to obtain a liquid detection signal and outputting the detection signal to the controller.

Optionally, the coupling circuit includes a first resistor and a first capacitor;

one end of the first resistor is connected with the metal induction sheet, the other end of the first resistor is connected with one end of the first capacitor, and the other end of the first capacitor is connected with the rectifying circuit.

Optionally, the rectifying circuit comprises a diode;

the anode of the diode is connected with one end of the first capacitor, and the cathode of the diode is connected with the filter circuit.

Optionally, the filter circuit includes a second resistor, a third resistor, a second capacitor, and a third capacitor;

one end of the second resistor, one end of the third resistor, one end of the second capacitor and the cathode of the diode are connected together, the other ends of the second resistor and the second capacitor are grounded, the other end of the third resistor is connected with the controller and one end of the third capacitor respectively, and the other end of the third capacitor is grounded.

Optionally, a power supply module is further included;

the power module is arranged in the top shell and is respectively connected with the controller and the atomization piece driving circuit.

Optionally, the atomization member driving circuit comprises a voltage boosting circuit and an oscillating circuit;

the boosting circuit is connected with the power supply module and used for boosting the voltage output by the power supply module to obtain boosted voltage;

the oscillating circuit is respectively connected with the booster circuit, the controller and the atomizing part and used for converting the booster voltage into oscillating voltage to be applied to the atomizing part according to the control signal output by the controller so as to enable the atomizing part to vibrate.

Optionally, the atomizing element comprises a piezoelectric transducer plate and a screen plate;

the piezoelectric transduction piece and the screen mesh piece are tightly attached to each other, and the piezoelectric transduction piece and the screen mesh piece are connected with the atomization piece driving circuit.

Optionally, the controller is a microcontroller or a single chip microcomputer.

The embodiment of the utility model has the beneficial effects that: an atomizer is provided. The atomizer includes the liquid cup, the atomizing piece, a pedestal, the top shell, liquid detection circuitry, locate controller and atomizing piece drive circuit in the top shell, the liquid cup provides the required liquid of atomizing for the atomizing piece, the top shell is located between liquid cup and the base, atomizing piece drive circuit is connected in atomizing piece and controller respectively, atomizing piece drive circuit is under the control of controller, provide drive voltage to the atomizing piece, liquid detection circuitry includes metal response piece and signal conditioning circuit, the inner wall that the top shell was located to the metal response piece is close to one side of liquid cup, signal conditioning circuit is connected with metal response piece and controller respectively. Because the metal induction sheet for detecting the liquid does not need to be in contact with the liquid in the liquid cup, the liquid in the liquid cup can be prevented from being polluted, and the accuracy of liquid detection can be ensured.

Drawings

The embodiments are illustrated by way of example only in the accompanying drawings, in which like reference numerals refer to similar elements and which are not to be construed as limiting the embodiments, and in which the figures are not to scale unless otherwise specified.

FIG. 1 is a perspective view of an atomizer according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an atomizing assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an atomizer according to an embodiment of the present invention;

FIG. 4 is an enlarged view of detail A labeled in FIG. 3;

fig. 5 is a block diagram of a circuit configuration of an atomizer according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an atomizing member according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a liquid detection circuit according to an embodiment of the present invention;

fig. 8 is a schematic circuit diagram of a liquid detection circuit according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, an atomizer 100 according to an embodiment of the present invention includes an atomizing part 10 and a main body part 20.

The atomizing unit 100 includes a housing 11, a liquid cup 12, and an atomizing assembly 13.

The liquid cup 12 is disposed in the housing 11, and the liquid cup 11 is used for storing liquid, which may be liquid medicine or other liquid substances. One side of the housing 11 is provided with a mounting opening 111, and the mounting opening 111 is used for mounting the atomizing assembly 13.

As shown in fig. 2, the atomizing assembly 13 includes a mounting plate 131, a first sealing ring 132, an atomizing member 133, a second sealing ring 134, and a cavity 135.

One end of the cavity 135 is detachably mounted on the mounting port 111, and the other end of the cavity 135 is provided with a mist outlet 1351. The mounting plate 131 is used for mounting the atomizing element 133, and the mounting plate 131 is provided with a through hole 1311. When the atomizer 100 works, the liquid stored in the liquid cup 11 is supplied to the atomizing member 133 through the through hole 1311, the atomizing member 133 contacts with the liquid, the atomizing member 133 vibrates by itself to atomize the liquid, and the atomized matter is output through the mist outlet 1351. The first and second sealing rings 132 and 134 serve to prevent liquid from leaking out from the edge of the atomizing member 133.

The liquid cup 12 includes a liquid storage chamber 121 and a transition chamber 122, one end of the transition chamber 122 is communicated with the liquid storage chamber 121, and the other end of the transition chamber 122 is opposite to the through hole 1311, so that the liquid stored in the liquid storage chamber 121 can be provided to the atomizing member 133 through the transition chamber 122. Through setting up transition storehouse 122, on the one hand, transition storehouse 122 can store the less part liquid that comes from stock solution storehouse 121 for atomizing 133 during operation only with a small amount of liquid contact, be favorable to atomizing, on the other hand can avoid stock solution storehouse 121 to remain too much liquid when atomizing is close to the end.

Referring to fig. 5, the main body portion 20 includes a top case 21, a controller 22, an atomizing element driving circuit 23, a liquid detecting circuit 24, a power module 25, and a base 26. The controller 22, the atomizing member driving circuit 23 and the power supply module 25 are all provided in the top case 21.

The atomization member driving circuit 23 is respectively connected with the controller 22 and the atomization member 133, when atomization operation is required, the controller 22 outputs a control signal to the atomization member driving circuit 23, and the atomization member driving circuit 23 obtains a driving voltage according to the control signal and applies the driving voltage to the atomization member 133, so that the atomization member 133 realizes high-frequency vibration, and liquid is liquefied.

The controller 22 may be any general purpose processor, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), single chip, arm (acorn RISC machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Also, the controller 22 may be any conventional processor, controller, microcontroller, or state machine. The controller 22 may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP, and/or any other such configuration. In this embodiment, the controller 22 is a microcontroller or a single chip microcomputer.

The power module 25 is connected to the controller 22 and the atomizing element driving circuit 23, respectively, the power module 25 can supply power to the controller 22 and the atomizing element driving circuit 23, and the controller 22 can also stop outputting by controlling the power module 25. The energy source of the power module 25 includes an external power source (e.g., commercial power) and an internal power source (e.g., a battery), among others.

Specifically, the atomizing member driving circuit 23 includes a voltage boosting circuit 231 and an oscillation circuit.

The booster circuit 231 is connected to the power module 25, and the booster circuit 231 can boost the voltage output from the power module 25 to obtain a boosted voltage.

The oscillation circuit 232 is connected to the booster circuit 231, the controller 22, and the atomizing element 133, respectively, and the oscillation circuit 232 converts the boosted voltage into an oscillation voltage (driving voltage) to be applied to the atomizing element 133 according to a control signal output from the controller 22, so as to vibrate the atomizing element 133.

Referring to fig. 6, the atomizing element 133 includes a piezoelectric transducer piece 1331 and a mesh piece 1332, the piezoelectric transducer piece 1331 and the mesh piece 1332 are disposed closely, and both the piezoelectric transducer piece 1331 and the mesh piece 1332 are connected to the oscillation circuit 232. The piezoelectric transducer piece 1331 includes a positive terminal 13311 and a resonance generating region 13312, the mesh piece 1332 includes a negative terminal 13321 and a mesh 13322, and the positive terminal 13311 and the negative terminal 13321 are connected to the output terminal of the oscillation circuit 232.

When the oscillation voltage output from the oscillation circuit 232 is applied to the piezoelectric transducer piece 1331 and the mesh piece 1332, the piezoelectric transducer piece 1331 and the mesh piece 1332 are energized to vibrate at high frequency, and at this time, the mesh 13322 atomizes the liquid under high frequency vibration. When the liquid in the liquid cup 12 is used up, the piezoelectric transducer piece 1331 and the screen piece 1332 vibrate at high frequency and cannot atomize the liquid, at this time, the piezoelectric transducer piece 1331 and the screen piece 1332 generate a buzzing sound, the buzzing sound can be used as a voice prompt to remind a user, and then the user can judge whether the liquid is in the liquid cup 12 by whether the atomizer 100 generates the buzzing sound. The piezoelectric transducer 1331 may be made of piezoelectric effect ceramics, and the mesh 1332 may be made of alloy mesh or polymer mesh.

Referring to fig. 3 and 4, the top case 21 is disposed between the liquid cup 12 and the bottom base 26, and the metal sensing piece 241 is disposed on a side of the inner wall of the top case 21 close to the liquid cup 12.

Referring to fig. 7, the liquid detection circuit 24 includes a metal sensor plate 241 and a signal conditioning circuit 242, and the signal conditioning circuit 242 is connected to the metal sensor plate 141 and the controller 22, respectively.

When liquid exists in the liquid cup 12, a high-frequency oscillation signal generated when the atomizing member 133 vibrates at a high frequency is transmitted through the liquid, so that the metal induction sheet 241 closely attached to the lower portion of the liquid cup 12 can receive the high-frequency oscillation signal like a communication antenna, and the signal conditioning circuit 242 couples the high-frequency oscillation signal to generate a voltage signal and output the voltage signal to the controller 22. Thus, if the controller 22 receives the voltage signal, it indicates that liquid is present in the liquid cup 12; if the controller 22 does not receive the voltage signal, it indicates that no liquid is present in the liquid cup 12. Therefore, the liquid detection circuit 24 can detect whether liquid exists in the liquid cup 12, so that when no liquid exists in the liquid cup 12, the controller 22 can immediately control the atomizer 100 to stop working, so as to avoid dry burning damage to the atomizing element 133.

Since the metal sensing piece 241 is not in contact with the liquid in the liquid cup 12, the liquid in the liquid cup 12 can be prevented from being polluted by the detection method, and the accuracy of liquid detection can be ensured.

Specifically, as shown in fig. 7, the signal conditioning circuit 242 includes a coupling circuit 2421, a rectifying circuit 2422, and a filtering circuit 2423.

The coupling circuit 2421 is connected to the metal sensing piece 241, and the coupling circuit 2421 can couple the oscillation signal sensed by the metal sensing piece 241 to obtain an oscillation voltage signal.

The rectifying circuit 2422 is connected to the coupling circuit 2421, and the rectifying circuit 2422 can rectify the oscillating voltage signal to obtain a rectified voltage signal.

The filter circuit 2423 is connected to the rectifier circuit 2422 and the controller 22, respectively, and the filter circuit 2423 can process the rectified voltage signal to obtain a liquid detection signal and output the liquid detection signal to the controller 22.

Referring to fig. 8, the coupling circuit 2421 includes a first resistor R1 and a first capacitor C1, the rectifying circuit 2422 includes a diode D1, and the filter circuit 2423 includes a second resistor R2, a third resistor R3, a second capacitor C2 and a third capacitor C3.

One end of a first resistor R1 is connected with the metal sensing sheet 241, the other end of the first resistor R1 is connected with one end of a first capacitor C1, the other end of the first capacitor C1 is connected with the anode of a diode D1, the cathode of a diode D1, one end of a second resistor R2, one end of a third resistor R3 and one end of the second capacitor C2 are connected together, the other end of the second resistor R2 and the other end of the second capacitor C2 are grounded, the other end of the third resistor R3 is connected with one end of the controller 22 and one end of the third capacitor C3 respectively, and the other end of the third capacitor C3 is grounded.

Finally, it is to be understood that the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present disclosure, and which are provided for the purpose of providing a more thorough understanding of the present disclosure. In the light of the above, the above features are combined with each other and many other variations of the different aspects of the utility model described above are considered to be within the scope of the present description; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. An atomizer, comprising:

a liquid cup for storing liquid;

an atomizing member for atomizing the liquid;

a base;

the top shell is arranged between the liquid cup and the base;

the controller is arranged in the top shell;

the atomization piece driving circuit is arranged in the top shell and is respectively connected with the atomization piece and the controller;

The liquid detection circuit comprises a metal induction sheet and a signal conditioning circuit, the metal induction sheet is arranged on one side, close to the liquid cup, of the inner wall of the top shell, and the signal conditioning circuit is connected with the metal induction sheet and the controller respectively.

2. The atomizer of claim 1, wherein said liquid cup comprises a reservoir and a transition chamber, said transition chamber being in communication with said reservoir, said transition chamber being configured to provide liquid from said reservoir to said atomizing member.

3. The nebulizer of claim 1, wherein the signal conditioning circuit comprises:

the coupling circuit is connected with the metal induction sheet and is used for coupling the oscillation signal sensed by the metal induction sheet to obtain an oscillation voltage signal;

the rectifying circuit is connected with the coupling circuit and is used for rectifying the oscillating voltage signal to obtain a rectified voltage signal;

and the filter circuit is respectively connected with the rectifying circuit and the controller and is used for processing the rectified voltage signal to obtain a liquid detection signal and outputting the liquid detection signal to the controller.

4. The nebulizer of claim 3, wherein the coupling circuit comprises a first resistor and a first capacitor;

One end of the first resistor is connected with the metal induction sheet, the other end of the first resistor is connected with one end of the first capacitor, and the other end of the first capacitor is connected with the rectifying circuit.

5. The nebulizer of claim 4, wherein the rectifying circuit comprises a diode;

the anode of the diode is connected with one end of the first capacitor, and the cathode of the diode is connected with the filter circuit.

6. The nebulizer of claim 5, wherein the filter circuit comprises a second resistor, a third resistor, a second capacitor, and a third capacitor;

one end of the second resistor, one end of the third resistor, one end of the second capacitor and the cathode of the diode are connected together, the other ends of the second resistor and the second capacitor are grounded, the other end of the third resistor is connected with the controller and one end of the third capacitor respectively, and the other end of the third capacitor is grounded.

7. The nebulizer of claim 1, further comprising a power module;

the power module is arranged in the top shell and is respectively connected with the controller and the atomization piece driving circuit.

8. The nebulizer of claim 7, wherein the nebulizer drive circuit comprises a boost circuit and an oscillation circuit;

the boosting circuit is connected with the power supply module and used for boosting the voltage output by the power supply module to obtain boosted voltage;

the oscillating circuit is respectively connected with the booster circuit, the controller and the atomizing part and used for converting the booster voltage into oscillating voltage to be applied to the atomizing part according to the control signal output by the controller so as to enable the atomizing part to vibrate.

9. The nebulizer of any one of claims 1 to 8, wherein the nebulizing element comprises a piezoelectric transducer plate and a mesh plate;

the piezoelectric transduction piece and the screen mesh piece are tightly attached to each other, and the piezoelectric transduction piece and the screen mesh piece are connected with the atomization piece driving circuit.

10. The nebulizer of any one of claims 1 to 8, wherein the controller is a microcontroller or a single chip microcomputer.

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