WO2020088337A1

WO2020088337A1 - Ultrasonic atomizing sheet

Info

Publication number: WO2020088337A1
Application number: PCT/CN2019/112928
Authority: WO
Inventors: 郭小义; 刘建福; 钟科军; 黄炜; 尹新强; 易建华; 周永权
Original assignee: 湖南中烟工业有限责任公司
Priority date: 2018-10-29
Filing date: 2019-10-24
Publication date: 2020-05-07
Also published as: CN209061458U

Abstract

An ultrasonic atomizing sheet, comprising a piezoelectric substrate (2021), a first electrode layer (2022) fixedly provided on one side surface of the piezoelectric substrate, and a second electrode layer (2023) fixedly provided on the other side surface of the piezoelectric substrate, a first protective layer (2024) being fixedly provided on the outer surface of the first electrode layer, and a second protective layer (2028) being fixedly provided in the central region of the first protective layer. The central region of the ultrasonic atomizing sheet is not easily damaged and not easy to burn out, having a long service life.

Description

Ultrasonic atomizing sheet

Technical field

The invention particularly relates to an ultrasonic atomizing sheet.

Background technique

The existing ultrasonic atomizing sheet includes a piezoelectric substrate, a first electrode layer fixed on one surface of the piezoelectric substrate, a second electrode layer fixed on the other surface of the piezoelectric substrate, and the outer surface of the first electrode layer is fixed With protective layer (usually glass glaze layer).

When using an ultrasonic atomizing sheet, contact the liquid guide with the corresponding side of the protective layer of the ultrasonic atomizing sheet, and apply an electric field to the piezoelectric substrate using the first electrode layer and the second electrode layer. The effect, that is, the piezoelectric substrate will undergo a slight deformation, thereby converting electrical energy into mechanical energy. Using the inverse piezoelectric effect, high-frequency voltage can be converted into high-frequency oscillations, thereby generating ultrasonic waves, ultrasonically atomizing smoke oil or other liquids, and generating smoke for users to consume.

The existing ultrasonic atomizing tablets have the following disadvantages during use:

First, due to the large amplitude of the central area of the ultrasonic atomizing sheet, the central area of the protective layer is easy to crack or break, the service life of the ultrasonic atomizing sheet is short, and after the protective layer is broken or damaged, the first electrode layer is exposed, leading to The liquid piece is directly in contact with the first electrode layer, which is easy to produce harmful substances, and at the same time, the debris generated by the cracked or broken protective layer is easily sucked by the user, which is harmful to human health.

Second, due to the large amplitude of the central area of the ultrasonic atomizing sheet, which results in a high temperature in the central area of the ultrasonic atomizing sheet, it is easy to scorch the liquid guide to produce harmful substances, the liquid guide has a short service life and increases the use Cost and endanger human health.

Summary of the invention

The purpose of the present invention is to provide an ultrasonic atomizing sheet with a small amplitude in the center area and a low temperature, and the center area of the protective layer is not easy to be broken or damaged, harmful substances are generated, and the service life is long. , Low cost of use, more healthy and environmentally friendly.

To solve the above technical problems, the technical solutions adopted by the present invention are:

An ultrasonic atomizing sheet includes a piezoelectric substrate, a first electrode layer fixed on one surface of the piezoelectric substrate, a second electrode layer fixed on the other surface of the piezoelectric substrate, the outer surface of the first electrode layer is fixed A first protective layer is provided; its structural feature is that it also includes a second protective layer fixed in the central area of the first protective layer.

With the above structure, since the central region of the piezoelectric substrate is provided with the first protective layer and the second protective layer, compared with the prior art where only the first protective layer is provided, the central region and the second protective layer are added The strength of the protective layer, so that the first protective layer and the second protective layer are not easy to crack or break, and the ultrasonic atomizing film has a long service life, reducing the probability of human body absorbing the debris generated by the protective layer cracking or breaking, and reducing the protective layer cracking or breaking The probability that the liquid in the liquid guide directly contacts the first electrode layer and undergoes a chemical reaction to produce harmful substances.

As a preferred manner, the second protective layer is fixed on the outer surface of the first protective layer, and the material of the second protective layer and the first protective layer are the same or different; or, the second protective layer is fixed on Within the first protective layer, the second protective layer and the first protective layer have different materials.

When the second protective layer is fixed on the outer surface of the first protective layer, the thickness of the central area of the ultrasonic atomizing sheet is greater than the thickness of the edge, that is, the position where the second protective layer is provided on the surface of the ultrasonic atomizing sheet forms a protrusion (the convex It can be a solid protrusion or a hollow protrusion), and the protrusion can strengthen the strength of the corresponding position of the ultrasonic atomizing sheet, thereby preventing the ultrasonic atomizing sheet from being cracked or damaged in the center area during high-frequency oscillation. In addition, since the thickness of the central region of the ultrasonic atomizing sheet is increased, the oscillation intensity is weakened, and the central region can be further prevented from being cracked or broken. Due to the weakening of the oscillation intensity, the temperature of the central area of the ultrasonic atomizing sheet is low, and it is not easy to scorch the liquid guide to produce harmful substances during use. The liquid guide has a long service life, reduces the cost of use, and is healthy and environmentally friendly. Furthermore, since the thickness of the central area of the ultrasonic atomizing sheet is thick, the heat transfer speed is relatively slow, and it is not easy to scorch or rot the liquid guide that is in contact with it, thereby improving the atomizing effect.

When the second protective layer is fixed in the first protective layer, the second protective layer can strengthen the central area of the first protective layer, thereby enhancing the protection of the central area of the ultrasonic atomizing sheet and preventing it from cracking or breaking.

As a preferred manner, the area of the second protective layer is 1/10 to 1/2 of the area of the first protective layer. Preferably, the area of the second protective layer is 1/5 to 1/3 of the area of the first protective layer. Taking into account the atomization performance and service life of the ultrasonic atomization sheet, it improves the user experience and reduces the cost of use.

As a preferred mode, the material of the first protective layer is glass glaze, and the material of the second protective layer is one or more of glass glaze, stainless steel, and polymer cotton mesh.

As a preferred manner, the second protective layer and the first protective layer are integrally formed or fixedly connected.

The first protective layer and the second protective layer may be separately processed and formed, for example, the first protective layer is formed first, then the second protective layer is formed, and then the first protective layer and the second protective layer are adhesively fixed or inlaid. Or, the second protective layer may be directly provided in the central area of the first protective layer through processes such as electroplating and printing.

When the second protective layer is provided in the first protective layer, the first protective layer and the second protective layer can also be integrally formed, for example, the second protective layer is placed on the first protective layer when the first protective layer is in a semi-solidified state Medium, and then sintered at a high temperature to solidify the first protective layer and the second protective layer.

As a preferred mode, the thickness of the piezoelectric substrate is uniform and flat; or, the thickness of the piezoelectric substrate is uniform and curved, and the first electrode layer is fixed on the surface of the piezoelectric piezoelectric substrate On the inner side, the second electrode layer is fixed on the outer side of the arc-shaped piezoelectric substrate.

As a preferred manner, the thicknesses of the first protective layer, the second protective layer, the first electrode layer, and the second electrode layer are all uniformly arranged.

As another preferred manner, the thickness of the first protective layer, the first electrode layer, and the second electrode layer are all uniformly set; the thickness of the second protective layer decreases from the center to the edge.

As a preferred mode, the thickness of the first protective layer is 5-50 microns, and the thickness of the second protective layer is 10-30 microns.

Compared with the prior art, the central area of the present invention is not easy to be broken or damaged, and it is not easy to scorch the liquid guide to produce harmful substances, has a long service life, low use cost, and is more healthy and environmentally friendly.

BRIEF DESCRIPTION

FIG. 1 is a top view of Embodiment 1 of the present invention.

2 is a bottom view of Embodiment 1 of the present invention.

3 is a side cross-sectional view of Embodiment 1 of the present invention.

Fig. 4 is an enlarged view of part A in Fig. 3.

5 is a schematic structural diagram of Embodiment 2 of the present invention.

6 is a schematic structural diagram of Embodiment 3 of the present invention.

7 is an enlarged view of part B in FIG. 6.

8 is a schematic structural diagram of Embodiment 4 of the present invention.

Among them, 202 is an ultrasonic atomizing sheet, 2021 is a piezoelectric substrate, 2022 is a first electrode layer, 20222 is an extension, 2023 is a second electrode layer, 2024 is a first protective layer, and 2028 is a second protective layer.

detailed description

Example one

As shown in FIGS. 1 to 4, the first embodiment of the ultrasonic atomizing sheet 202 includes a piezoelectric substrate 2021, a first electrode layer 2022 fixed on one surface of the piezoelectric substrate 2021, and a fixed other side on the piezoelectric substrate 2021. The surface of the second electrode layer 2023. The piezoelectric substrate 2021 is made of piezoelectric ceramics. Both the first electrode layer 2022 and the second electrode layer 2023 are silver layers. The first electrode layer 2022 and the second electrode layer 2023 are provided on the side surface of the piezoelectric substrate 2021 by processes such as electroplating and printing. The first electrode layer 2022 has an extension portion 20222 bent and extended to a corresponding side surface of the second electrode layer 2023 on the piezoelectric substrate 2021, so as to facilitate electrical connection with an external power source.

A first protective layer 2024 is fixed on the outer surface of the first electrode layer 2022; it also includes a second protective layer 2028 fixed on the central area of the first protective layer 2024.

Since the central region of the piezoelectric substrate 2021 is provided with the first protective layer 2024 and the second protective layer 2028, compared with the prior art where only the first protective layer 2024 is provided, the central region of the first protective layer 2024 and the second The strength of the protective layer 2028, so that the first protective layer 2024 and the second protective layer 2028 are not easy to break or break, and the ultrasonic atomizing sheet 202 has a long service life, reducing the chance of human body sucking into the debris generated by the broken or broken

protective layers

2024, 2028 In this way, the probability that the

protective layer

2024 or 2028 is broken or damaged to cause the liquid in the liquid guide to directly contact the first electrode layer 2022 and undergo a chemical reaction to generate harmful substances.

The second protective layer 2028 is fixed on the outer surface of the first protective layer 2024, and the materials of the second protective layer 2028 and the first protective layer 2024 are the same or different.

In the first embodiment, the second protective layer 2028 is fixed on the outer surface of the first protective layer 2024, and the thickness of the central area of the ultrasonic atomizing sheet 202 is greater than the thickness of the edge, that is, the surface of the ultrasonic atomizing sheet 202 is provided with a second protective layer A bulge is formed at the position of 2028. In the first embodiment, the bulge is a solid bulge, and the bulge may also be a hollow bulge, which is not shown in the drawings, but does not affect those skilled in the art to the present invention. Understanding and implementation.

The protrusions can strengthen the strength of the ultrasonic atomizing sheet 202 at the corresponding position, thereby preventing the ultrasonic atomizing sheet 202 from being vibrated or damaged in the center region during high-frequency oscillation. In addition, since the thickness of the central region of the ultrasonic atomizing sheet 202 increases, the oscillation intensity is weakened, and the central region can be further prevented from being broken or damaged. Due to the weakened oscillation intensity, the temperature in the central area of the ultrasonic atomizing sheet 202 is lower, and the atomizing effect is relatively weak. It is not easy to scorch the liquid guide to produce harmful substances during use. The liquid guide has a long service life and reduces the cost of use And healthy and environmentally friendly. Furthermore, since the thickness of the central area of the ultrasonic atomizing sheet 202 is thick, the heat transfer speed is relatively slow, and it is not easy to scorch or rot the liquid guide which is in contact with it, thereby improving the atomizing effect.

The area of the second protective layer 2028 is 1/10 to 1/2 of the area of the first protective layer 2024, preferably, the area of the second protective layer 2028 is 1/5 to 1/3 of the area of the first protective layer 2024, which can take into account ultrasonic waves The atomizing performance and service life of the atomizing film 202 improve the user experience and reduce the cost of use.

The material of the first protective layer 2024 is glass glaze, and the material of the second protective layer 2028 is a material resistant to high temperature and corrosion, such as one or more of glass glaze, stainless steel, and polymer cotton mesh.

The second protective layer 2028 and the first protective layer 2024 are integrally formed or fixedly connected.

The first protective layer 2024 and the second protective layer 2028 can be separately processed and formed, for example, the first protective layer 2024 is formed first, and then the second protective layer 2028 is formed, and then the first protective layer 2024 and the second protective layer 2028 are adhered or fixed. Mosaic fixed. Alternatively, the second protective layer 2024 may be directly provided in the central area of the first protective layer 2028 through processes such as electroplating and printing.

When the materials of the second protective layer 2028 and the first protective layer 2024 are the same, the first protective layer 2024 and the second protective layer 2028 can also be integrally formed.

The thickness of the piezoelectric substrate 2021 is uniform and flat.

The thicknesses of the first protective layer 2024, the first electrode layer 2022, and the second electrode layer 2023 are all set uniformly; the thickness of the second protective layer 2028 decreases from the center to the edge. In addition, the thickness of the second protective layer 2028 can also be uniformly set, which is not shown in the drawings, but does not affect the understanding and implementation of the present invention by those skilled in the art.

The thickness of the first protective layer 2024 is 5-50 microns, and the thickness of the second protective layer 2028 is 10-30 microns. That is, the thickness of the central area of the ultrasonic atomizing sheet 202 is 10 to 30 micrometers thicker than the thickness of the conventional ultrasonic atomizing sheet 202 without the second protective layer 2028 added.

Example 2

As shown in FIG. 5, the second embodiment of the ultrasonic atomizing sheet 202 repeats the first embodiment, the difference is that the piezoelectric substrate 2021 has a uniform thickness and a curved surface shape, and the first electrode layer 2022 is fixed on the curved surface pressure On the inner surface of the electric substrate 2021, the second electrode layer 2023 is fixed on the outer surface of the arc-shaped piezoelectric substrate 2021.

In the second embodiment, since the inner side of the ultrasonic atomizing sheet 202 in contact with the liquid guiding member is a curved surface with a slope, the liquid guiding speed is faster, the speed of atomization and smoke generation is also faster, and the liquid atomization is more Fully, the amount of smoke is greater.

Example Three

As shown in FIGS. 6-7, the third embodiment of the ultrasonic atomizing sheet 202 includes a piezoelectric substrate 2021, a first electrode layer 2022 fixed on one surface of the piezoelectric substrate 2021, and a fixed other side on the piezoelectric substrate 2021. The surface of the second electrode layer 2023. The piezoelectric substrate 2021 is made of piezoelectric ceramics. The first electrode layer 2022 and the second electrode layer 2023 are both silver layers. The first electrode layer 2022 and the second electrode layer 2023 are provided on the side surface of the piezoelectric substrate 2021 by processes such as electroplating and printing. The first electrode layer 2022 has an extension portion 20222 bent and extended to a corresponding side surface of the second electrode layer 2023 on the piezoelectric substrate 2021, so as to facilitate electrical connection with an external power source.

Since the central region of the piezoelectric substrate 2021 is provided with the first protective layer 2024 and the second protective layer 2028, compared with the prior art where only the first protective layer 2024 is provided, the central region of the first protective layer 2024 and the second The strength of the protective layer 2028, so that the first protective layer 2024 and the second protective layer 2028 are not easy to break or break, the ultrasonic atomizing sheet 202 has a long service life, and reduces the probability of the human body sucking into the debris generated by the broken or damaged

protective layers

2024, 2028 In this way, the probability that the

protective layer

The second protective layer 2028 is fixed in the first protective layer 2024, and the materials of the second protective layer 2028 and the first protective layer 2024 are different.

In the third embodiment, when the second protective layer 2028 is fixed in the first protective layer 2024, the second protective layer 2028 can strengthen the central area of the first protective layer 2024, thereby enhancing the protection of the central area of the ultrasonic atomizing sheet 202 To prevent it from cracking or breaking.

The area of the second protective layer 2028 is 1/10 to 1/2 of the area of the first protective layer 2024, preferably, the area of the second protective layer 2028 is 1/5 to 1/3 of the area of the first protective layer 2024, which can take into account ultrasonic waves The atomizing performance and service life of the atomizing sheet 202 improve the user experience and reduce the cost of use.

The material of the first protective layer 2024 is glass glaze, and the material of the second protective layer 2028 is one or more of high-temperature and corrosion-resistant materials such as stainless steel and polymer cotton mesh, which is convenient for integration with the first protective layer 2024 Solidification.

The second protective layer 2028 and the first protective layer 2024 are integrally formed. When the first protective layer 2024 is in a semi-solidified state, the second protective layer 2028 is placed in the first protective layer 2024, and then sintered at a high temperature to solidify and form the first protective layer 2024 and the second protective layer 2028.

The thickness of the piezoelectric substrate 2021 is uniform and flat.

The thickness of the first protective layer 2024 is 5-50 microns, and the thickness of the second protective layer 2028 is 10-30 microns.

Example 4

As shown in FIG. 8, the fourth embodiment of the ultrasonic atomizing sheet 202 repeats the third embodiment, except that the piezoelectric substrate 2021 has a uniform thickness and a curved surface shape, and the first electrode layer 2022 is fixed on the curved surface pressure On the inner surface of the electric substrate 2021, the second electrode layer 2023 is fixed on the outer surface of the arc-shaped piezoelectric substrate 2021.

In the fourth embodiment, since the inner side of the ultrasonic atomizing sheet 202 in contact with the liquid guide is a curved surface with a slope, the liquid guide speed is faster, the speed of atomization and smoke generation is faster, and the liquid atomization is more Fully, the amount of smoke is greater.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only schematic, not limiting, and those of ordinary skill in the art Under the enlightenment of the present invention, many forms can be made without departing from the scope of the present invention and the scope of the claims, which all fall within the protection scope of the present invention.

Claims

An ultrasonic atomizing sheet includes a piezoelectric substrate (2021), a first electrode layer (2022) fixed on one surface of the piezoelectric substrate (2021), and a fixed electrode layer on the other surface of the piezoelectric substrate (2021) A second electrode layer (2023), a first protective layer (2024) is fixed on the outer surface of the first electrode layer (2022); characterized in that it also includes a second protection fixed in the central area of the first protective layer (2024) Layer (2028).
The ultrasonic atomizing sheet according to claim 1, wherein

The second protective layer (2028) is fixed on the outer surface of the first protective layer (2024), and the material of the second protective layer (2028) and the first protective layer (2024) is the same or different;

or,

The second protective layer (2028) is fixed in the first protective layer (2024), and the materials of the second protective layer (2028) and the first protective layer (2024) are different.
The ultrasonic atomizing sheet according to claim 2, wherein the area of the second protective layer (2028) is 1/10 to 1/2 of the area of the first protective layer (2024).
The ultrasonic atomizing sheet according to claim 3, wherein the area of the second protective layer (2028) is 1/5 to 1/3 of the area of the first protective layer (2024).
The ultrasonic atomizing sheet according to claim 2, wherein the material of the first protective layer (2024) is glass glaze, and the material of the second protective layer (2028) is glass glaze, stainless steel, polymer cotton One or more in the network.
The ultrasonic atomizing sheet according to claim 2, wherein the second protective layer (2028) and the first protective layer (2024) are integrally formed or fixedly connected.
The ultrasonic atomizing sheet according to claim 2, wherein

The piezoelectric substrate (2021) has a uniform thickness and is flat plate type;

or,

The piezoelectric substrate (2021) has a uniform thickness and is arc-shaped, and the first electrode layer (2022) is fixed on the inner surface of the arc-shaped piezoelectric substrate (2021), and the second electrode layer (2023) is fixed On the outer surface of the curved piezoelectric substrate (2021).
The ultrasonic atomizing sheet according to any one of claims 1 to 7, wherein the first protective layer (2024), the second protective layer (2028), the first electrode layer (2022), the second electrode The thickness of the four layers (2023) is uniformly set.
The ultrasonic atomizing sheet according to any one of claims 1 to 7, wherein the thickness of the first protective layer (2024), the first electrode layer (2022), and the second electrode layer (2023) Both are uniformly arranged; the thickness of the second protective layer (2028) decreases from the center to the edge.
The ultrasonic atomizing sheet according to any one of claims 1 to 7, wherein the thickness of the first protective layer (2024) is 5 to 50 microns, and the thickness of the second protective layer (2028) is 10 to 30 microns.