CN111838769A - Electronic cigarette atomizing device and electronic cigarette - Google Patents

Abstract

The invention discloses an electronic cigarette atomizing device and an electronic cigarette, wherein the electronic cigarette atomizing device comprises a piezoelectric substrate, an interdigital transducer component, a heating element, a liquid guiding piece and a liquid storage part, an atomizing area is arranged on the piezoelectric substrate, the interdigital transducer component is attached to the surface of the piezoelectric substrate, the liquid guiding piece is used for conducting smoke liquid in the liquid storage part to the atomizing area, the heating element is used for transferring heat to the smoke liquid in the atomizing area, the temperature of the smoke liquid in the atomizing area is increased, and the interdigital transducer component is used for atomizing the smoke liquid in the atomizing area through emitted surface acoustic waves. The electronic cigarette atomization device provided by the invention has the advantages that the temperature of the cigarette liquid in the atomization area is increased in a heat conduction mode, and the interdigital transducer is utilized for atomization, so that the atomization effect of the interdigital transducer can be improved, and the energy utilization rate is improved.

Description

Electronic cigarette atomizing device and electronic cigarette

Technical Field

The invention relates to the field of electronic cigarettes for heating cigarette liquid, in particular to an electronic cigarette atomizing device and an electronic cigarette.

Background

Traditional electron cigarette adopts the electric heating mode, and its principle is that the tobacco tar among the oil storage device drips into heating device through oil pipe, and the high temperature through heating device is with tobacco tar evaporation atomizing formation mist steam to be inhaled along with the air by the person of sucking. The main disadvantage of this method is that the high temperature causes a series of complex decomposition, cracking, carbonization and dissolution reactions of the tobacco tar, the heating element and the oil conduit material, which easily affects the pumping quality and has potential health hazard.

In recent years, room temperature atomization techniques such as ultrasonic atomization and surface acoustic wave atomization have been developed. However, the currently adopted surface acoustic wave atomization technology generally has the defects of complex structure, poor atomization effect, low energy utilization rate and the like.

Disclosure of Invention

The invention provides an electronic cigarette atomizing device and an electronic cigarette, which are used for solving the technical problem.

The embodiment of the invention discloses an electronic cigarette atomizing device which comprises a piezoelectric substrate, an interdigital transducer component, a heating element, a liquid guiding piece and a liquid storage part, wherein an atomizing area is arranged on the piezoelectric substrate, the interdigital transducer component is attached to the surface of the piezoelectric substrate, the liquid guiding piece is used for conducting smoke liquid in the liquid storage part to the atomizing area, the heating element is used for transferring heat to the smoke liquid in the atomizing area, so that the temperature of the smoke liquid in the atomizing area is increased, and the interdigital transducer component is used for atomizing the smoke liquid in the atomizing area through emitted surface acoustic waves.

By adopting the technical scheme, the temperature of the smoke liquid in the atomization area is improved in a heat conduction mode, the interdigital transducer is recycled for atomization, the atomization effect of the interdigital transducer can be improved, and the energy utilization rate is improved.

According to another specific embodiment of the invention, the embodiment of the invention discloses an electronic cigarette atomizing device, and the interdigital transducer structure comprises a first interdigital transducer and a second interdigital transducer, wherein the first interdigital transducer and the second interdigital transducer are symmetrically arranged along the first direction, and the atomizing area is positioned between the first interdigital transducer and the second interdigital transducer.

According to another specific embodiment of the invention, the first interdigital transducer and the second interdigital transducer are annular, the annular is concave relative to the atomizing area, the distance between two opposite linear side edges of the annular from the annular to the atomizing area is gradually close in a second direction, and the second direction is the direction of the symmetry axis of the first interdigital transducer and the second interdigital transducer.

According to another specific embodiment of the invention, the embodiment of the invention discloses an electronic cigarette atomizing device, wherein the heating element is independently attached to the surface of the piezoelectric substrate or embedded in the piezoelectric substrate.

According to another specific embodiment of the invention, the embodiment of the invention discloses an electronic cigarette atomizing device, and the liquid guide piece is independently attached to the surface of the piezoelectric substrate or embedded in the piezoelectric substrate.

According to another embodiment of the invention, an electronic cigarette atomization device is disclosed, wherein the piezoelectric substrate comprises a first layer and a second layer which are overlapped along the thickness direction of the piezoelectric substrate, and the liquid guide member is clamped between the first layer and the second layer.

According to another specific embodiment of the invention, the embodiment of the invention discloses an electronic cigarette atomizing device, and a heating element is arranged opposite to an atomizing area along the thickness direction of a piezoelectric substrate.

According to another embodiment of the invention, the heating element and the interdigital transducer component are integrally processed on the piezoelectric substrate through MEMS technology.

According to another embodiment of the invention, an electronic cigarette atomizing device is disclosed, wherein the atomizing area is a depression sunken in the surface of the piezoelectric substrate.

According to another specific embodiment of the invention, the embodiment of the invention discloses an electronic cigarette atomization device, which further comprises a temperature control mechanism for controlling the heating temperature of a heating element, so that the viscosity of the cigarette liquid in an atomization area is reduced.

The embodiment of the invention also provides an electronic cigarette which comprises the electronic cigarette atomization device.

Above-mentioned technical scheme provides not produce harmful substance and the efficient electron cigarette product of atomizing, has promoted the suction and has experienced.

Drawings

Fig. 1 is a schematic structural view of an electronic cigarette atomizing device according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides an apparatus for electronic cigarette atomization, comprising a piezoelectric substrate 1, an interdigital transducer member, a heating element 4, a liquid guide 6, and a liquid reservoir 7. The piezoelectric substrate 1 is provided with an atomizing area 5, and the interdigital transducer member is attached to the surface of the piezoelectric substrate 1, for example, the interdigital transducer member can be attached to the upper surface of the piezoelectric substrate 1 in the embodiment. The liquid guiding member 6 is used for guiding the liquid smoke in the liquid storage part 7 to the atomization area 5, so that the liquid smoke exists at the position of the atomization area 5. The heating element 4 is arranged to transfer heat to the liquid in the atomisation region by means of heat conduction so that the temperature of the liquid in the atomisation region is increased. The temperature of the tobacco juice can be specifically set according to requirements. The interdigital transducer component converts an electric signal into an acoustic signal by utilizing the inverse piezoelectric effect of the piezoelectric substrate 1, forms an acoustic surface wave which has the same frequency with an external signal and propagates along the surface of the piezoelectric substrate 1, the acoustic surface wave propagates to the atomization area 5 to be contacted with the tobacco juice, and the energy carried by the acoustic surface wave can ensure that the surface tension of the tobacco juice is not enough to keep the geometrical form of the tobacco juice stable, so that aerosol is generated.

Traditionally, the cigarette liquid is atomized only by adopting forms such as surface acoustic waves, ultrasonic waves and the like, and the atomization effect is not good. The inventor finds that the cigarette liquid has high self-viscosity at normal temperature and the cigarette liquid can keep the state stably by surface tension. When the tobacco juice is heated properly to be heated, the viscosity of the tobacco juice is reduced, and then the heated tobacco juice is processed by the interdigital transducer, the generated aerosol is obviously increased, and the particle size of the smoke is smaller and more uniform.

In addition, the surface acoustic wave is adopted to atomize at normal temperature in the prior art, aerosol at normal temperature is also felt when a user sucks, and experience feeling is poor. The atomized aerosol after temperature rise can be more similar to the feeling of smoking common cigarettes when a user smokes, the fragrance is more obvious when the temperature rises, and the smoking experience is enhanced.

Further, the above-mentioned interdigital transducer means includes the first interdigital transducer 2 and the second interdigital transducer 3, the first interdigital transducer 2 and the second interdigital transducer 3 are symmetrically arranged in the first direction, and the atomization zone 5 is located between the first interdigital transducer 2 and the second interdigital transducer 3 in the first direction. When the piezoelectric substrate 1 has a cubic structure, the first direction is, for example, a length or width direction of the piezoelectric substrate 1, such as a y direction shown in fig. 1. Because the first interdigital transducer 2 and the second interdigital transducer 3 are symmetrically arranged and the atomization area 5 is arranged between the first interdigital transducer 2 and the second interdigital transducer 3, standing waves with large energy base numbers can be formed after surface acoustic waves excited by the first interdigital transducer 2 and the second interdigital transducer 3 are oppositely propagated, interfered and superposed, the standing waves are contacted with the smoke liquid in the atomization area 5, and the surface tension of the smoke liquid is not enough to keep the geometrical shape of the smoke liquid stable due to the carried energy, so that aerosol is generated. Two interdigital transducers are symmetrically arranged, and the atomization efficiency is higher.

Further in the above-described embodiment, the first interdigital transducer 2 and the second interdigital transducer 3 have a ring shape. The ring shape of the present embodiment is similar to a sector with an arc cut off the apex. Referring to fig. 1, the relative positional relationship of the annular first interdigital transducer 2 and the second interdigital transducer 3 with respect to the atomizing area 5 is set at a concave angle with respect to the atomizing area 5. For example, the first interdigital transducer 2 has a structure substantially enclosed by two straight side edges and two arcs different in arc length, and the distance between the two straight side edges of the first interdigital transducer 2 in the second direction gradually approaches from the first interdigital transducer 2 to the atomization region 5. The second direction in this embodiment is defined as the direction of the symmetry axis of the first interdigital transducer 2 and the second interdigital transducer 3, such as the x direction in fig. 1, and is in a perpendicular relationship with the above-mentioned first direction. That is, the first interdigital transducer 2 in the present embodiment has a ring shape that gradually recedes toward the atomization zone 5. Also, the shape and placement position of the second interdigital transducer 3 are the same as those of the first interdigital transducer 2, and will not be described here. By arranging the first interdigital transducer 2 and the second interdigital transducer 3 in a ring shape, the atomization efficiency can be further improved. Accordingly, in the present exemplary embodiment, the atomization zone 5 can also be designed to be circular.

In each of the above embodiments, the heating element 4 is independently attached to the surface of the piezoelectric substrate 1 or embedded in the piezoelectric substrate 1. By "independent" is meant that the heating element 4 does not overlap, contact, or otherwise overlap with other components of the electrospray device other than the piezoelectric substrate 1. For example, the heating element 4 does not come into direct contact with the atomization zone or the interdigital transducer member. Thus, the heating element 4 generates heat and conducts the heat to the piezoelectric substrate 1, and then the piezoelectric substrate conducts the heat to the atomization area 5, so that the heat cannot affect other components, and greater guarantee can be provided for avoiding the overhigh temperature of the atomization area 5. For example, the heating element 4 is located on the lower surface of the piezoelectric substrate 1, or the heating element 4 is provided inside the piezoelectric substrate 1, and the piezoelectric substrate 1 may be formed by forming the piezoelectric substrate 1 into two pieces, one on top of the other, and sandwiching the piezoelectric substrate 1 therebetween. Preferably, the heating element 4 can also be arranged opposite the atomization zone 5 in the vertical direction. The vertical direction is the z direction in fig. 1. For example, the heating element 4 is located directly below the atomization zone 5, improving the efficiency of heat transfer.

In the above embodiments, the liquid guide 6 is independently attached to the surface of the piezoelectric substrate 1 or embedded in the piezoelectric substrate. The meaning of "independently" here is similar to that described above. In addition, since the liquid guide 6 is in contact with the entire surface of the piezoelectric substrate 1, the heat of the heating element 4 is also transferred to the liquid guide 6, thereby generating a preheating effect. When the liquid guide 6 is fitted inside the piezoelectric substrate 1, the liquid guide 6 is not exposed to the outside, and oil leakage is reduced. Specifically, as described above, the piezoelectric substrate 1 includes the first layer and the second layer stacked together in the thickness direction thereof, and the liquid guide 6 is interposed between the first layer and the second layer. The liquid guide 6 is, for example, a liquid guide cotton or a bundle of capillaries. Furthermore, the liquid storage part 7 is arranged at the side of the piezoelectric substrate 1, and a liquid injection port 8 can be arranged on the liquid storage part 7, so that smoke liquid can be repeatedly added.

In the above embodiments, the heating element 4 and the interdigital transducer member are integrally formed on the piezoelectric substrate 1 by Micro Electro Mechanical Systems (MEMS). Therefore, the size of the whole electronic atomization device can be further reduced, heat conduction is accelerated, the whole structure is compact, stability is good, and cleaning and maintenance are convenient.

In the above embodiments, the atomization region 5 is a depression recessed in the surface of the piezoelectric substrate. Specifically, in the present embodiment, the atomization region 5 is located on the upper surface of the piezoelectric substrate 1, and the bottom surface of the atomization region 5 is lower than the upper surface. In this way the liquid smoke located in the atomising region 5 is less prone to unwanted diffusion and avoids contact with the interdigital transducer members.

In each of the above embodiments, the heating element 4 itself may be selected from a material that is not higher than a predetermined temperature. In addition, a temperature control mechanism (not shown) may be provided for controlling the heating temperature of the heating element 4 to a predetermined value. The preset value can be set according to the physical parameters of different tobacco liquids, the smoking effect and other factors. In this embodiment, the heating temperature is only required to be set to a temperature that reduces the viscosity of the tobacco liquid in the atomization zone. The viscosity of the tobacco juice is reduced, and the atomization efficiency of the tobacco juice is improved.

In addition, the invention also provides an electronic cigarette which comprises the electronic cigarette atomization device in each embodiment. Adopt above-mentioned electron smog spinning disk atomiser's electron cigarette, can realize promoting the taste to the high efficiency gasification of tobacco juice.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (11)

1. The utility model provides an electron smog spinning disk atomiser, its characterized in that, includes piezoelectricity base, interdigital transducer component, heating element, drain and stock solution portion, be equipped with the atomization zone on the piezoelectricity base, the laminating of interdigital transducer component in the surface of piezoelectricity base, the drain be used for with tobacco juice conduction in the stock solution portion extremely the atomization zone, wherein heating element is used for with heat transfer extremely tobacco juice in the atomization zone makes tobacco juice temperature in the atomization zone risees, the interdigital transducer component is used for right through the surface acoustic wave that sends the tobacco juice in the atomization zone atomizes.

2. The electronic aerosolization device of claim 1, wherein the interdigital transducer member comprises a first interdigital transducer and a second interdigital transducer, the first interdigital transducer and the second interdigital transducer being symmetrically disposed along a first direction and the aerosolization zone being located between the first interdigital transducer and the second interdigital transducer.

3. The electronic aerosolization device of claim 2, wherein the first interdigital transducer and the second interdigital transducer are annular, the annular shape being concave relative to the aerosolization region, and wherein from the annular shape to the aerosolization region, opposing linear sides of the annular shape are progressively closer together in a second direction that is in the direction of the axes of symmetry of the first interdigital transducer and the second interdigital transducer.

4. The electronic aerosolization device of any one of claims 1-3, wherein the heating element is independently attached to a surface of the piezoelectric substrate or embedded within the piezoelectric substrate.

5. The electronic aerosolization device of claim 4, wherein the liquid-conducting member is independently attached to a surface of the piezoelectric substrate or embedded within the piezoelectric substrate.

6. The electronic aerosolization device of claim 5, wherein the piezoelectric substrate comprises first and second layers stacked along a thickness thereof, the liquid-directing member being sandwiched between the first and second layers.

7. The electronic aerosolization device of claim 4, wherein the heating element is disposed opposite the aerosolization region along a thickness of the piezoelectric substrate.

8. The electronic aerosolization device of claim 4, wherein the heating element and the interdigital transducer member are integrally machined into the piezoelectric substrate via MEMS technology.

9. The electronic aerosolization device of any of claims 1-3, 5-8, wherein the aerosolization area is a depression recessed in a surface of the piezoelectric substrate.

10. The electronic aerosolization device of any one of claims 1-3, 5-8, further comprising a temperature control mechanism for controlling a heating temperature of the heating element such that a viscosity of the tobacco liquid in the aerosolization region is reduced.

11. An electronic cigarette, comprising an electronic aerosolization device according to any one of claims 1-10.

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