WO2020088336A1

WO2020088336A1 - Ultrasonic atomization piece, atomizer, and electronic cigarette

Info

Publication number: WO2020088336A1
Application number: PCT/CN2019/112927
Authority: WO
Inventors: 刘建福; 钟科军; 郭小义; 黄炜; 尹新强; 易建华; 沈礼周; 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

Abstract

Provided are an ultrasonic atomization piece, an atomizer, and an electronic cigarette, wherein an ultrasonic atomization piece (202) comprises a piezoelectric substrate (2021), a first electrode layer (2022) fixedly provided at one lateral surface of the piezoelectric substrate (2021), and a second electrode layer (2023) fixedly provided at the other lateral surface of the piezoelectric substrate (2021). A protective layer (2024) is fixedly provided at an outer surface of the first electrode layer (2022). A central area of the first electrode layer (2022) or the second electrode layer (2023) is provided with a through hole (20221, 20231).

Description

Ultrasonic atomizing sheet, atomizer and electronic cigarette

Technical field

The invention particularly relates to an ultrasonic atomizing sheet, atomizer and electronic cigarette.

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 easily broken, the service life of the ultrasonic atomizing sheet is short, and after the protective layer is ruptured, the first electrode layer is exposed, and the liquid guide is When the first electrode layer contacts, it is easy to produce harmful substances, and at the same time, the debris generated by the rupture of the 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, an atomizer and an electronic cigarette in view of the above-mentioned shortcomings of the prior art. Damaged, difficult to produce harmful substances, long service life, low use cost, 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 protective layer is provided; its structural feature is that the central area of the first electrode layer and / or the second electrode layer is provided with a through hole.

If the through hole is opened in the central area of the first electrode layer, no electrode layer is provided on the central area of the piezoelectric substrate corresponding to the side surface of the first electrode layer, so that the central area of the piezoelectric substrate does not generate back pressure during actual work The electrical effect may produce a weak reverse piezoelectric effect, thereby effectively alleviating the oscillation intensity in the central area of the ultrasonic atomizing sheet. Because the oscillation intensity of the central area of the ultrasonic atomizing sheet is weak, the central area of the protective layer is not easily broken or damaged, extending the service life of the protective layer and the ultrasonic atomizing sheet, and reducing the probability of the human body absorbing the debris generated by the rupture of the protective layer . In addition, even if the central area of the protective layer is broken, since the central area corresponding to the first electrode layer is a through hole and no electrode layer is provided, the first electrode layer will not be exposed, and the liquid guide will not directly contact the first electrode layer In order to prevent the liquid of the liquid guiding member from directly contacting the electrode layer and causing a chemical reaction to generate harmful substances. At the same time, because the oscillation intensity of the central area of the ultrasonic atomizing sheet is weak, the temperature of the central area of the ultrasonic atomizing sheet is relatively low, and it is not easy to scorch the liquid guide member during use to produce harmful substances, and the liquid guide member has a long service life and reduces The use cost is healthy and environmentally friendly.

If the through hole is opened in the central area of the second electrode layer, since the central area of the second electrode layer is formed with the through hole, the piezoelectric substrate does not have an electrode layer at the central area corresponding to the side surface of the second electrode layer, so that the piezoelectric substrate In the actual working process, the central area of the PTC does not produce reverse piezoelectric effect or weak reverse piezoelectric effect, thus effectively alleviating the oscillation intensity of the central area of the ultrasonic atomizing sheet. Because the oscillation intensity of the central area of the ultrasonic atomizing sheet is weak, the central area of the protective layer is not easy to break, extending the service life of the protective layer and the ultrasonic atomizing sheet, reducing the probability of the human body sucking the debris generated by the protective layer rupture, reducing The probability that the protective layer ruptures causes the liquid of the liquid guiding member to directly contact the first electrode layer to generate a chemical reaction and generate harmful substances. At the same time, because the oscillation intensity of the central area of the ultrasonic atomizing sheet is weak, the temperature of the central area of the ultrasonic atomizing sheet is relatively low, and it is not easy to scorch the liquid guide member during use to produce harmful substances, and the liquid guide member has a long service life and reduces The use cost is healthy and environmentally friendly.

Further, the through hole is opened in the central area of the first electrode layer; the protective layer is provided with a convex portion corresponding to the through hole, and the convex portion is provided in the through hole.

Since the convex portion is provided, the thickness of the central region of the protective layer increases, and the central region of the protective layer can be further prevented from cracking.

Further, the through hole is opened in the central area of the second electrode layer; a third electrode layer on the side surface of the piezoelectric substrate is also provided in the through hole, and a through groove is formed between the third electrode layer and the second electrode layer The third electrode layer and the second electrode layer are connected by a conductive connection layer.

With the above structure, the through groove is ring-shaped without an electrode layer and is provided in the middle region, so in the actual working process of the ultrasonic atomizing sheet, the piezoelectric substrate portion corresponding to the through groove of the electrodeless layer does not produce reverse piezoelectric effect or A weak reverse piezoelectric effect is generated, and the reverse piezoelectric effect corresponding to the third electrode layer at the center is also weak, thereby effectively alleviating the oscillation intensity in the central area of the ultrasonic atomizing sheet.

As a preferred mode, the conductive connection layer is fixed on the side surface of the piezoelectric substrate.

As a preferred manner, the first electrode layer has an extension bent to the corresponding side surface of the second electrode layer on the piezoelectric substrate.

As a preferred manner, the first electrode layer and the second electrode layer are silver layers.

As a preferred manner, the protective layer is a glass glaze layer.

As a preferred mode, the piezoelectric substrate is piezoelectric ceramic.

As a preferred manner, the conductive connection layer is a silver layer.

Based on the same inventive concept, the present invention also provides an ultrasonic atomizer, including a casing and an atomizing core in the casing, the atomizing core includes a liquid guide, and is characterized in that the atomizing core further includes the ultrasonic mist Chemical sheet, the liquid guide is in contact with the outer surface of the protective layer of the ultrasonic atomizing sheet.

Further, the bottom of the casing is provided with a lower cover, the bottom of the lower cover is connected with the bottom cover, the upper section of the atomizing core passes through the mounting hole on the lower cover and is provided in the casing, the casing is provided with a connecting sleeve, and the upper section of the atomizing core is provided on the connection Inside the sleeve, the atomizing core is detachably connected to the lower cover; the lower section of the atomizing core is set inside the bottom cover, and the atomizing core is detachably connected to the bottom cover; the first seal is sleeved outside the middle section of the atomizing core corresponding to the mounting hole Ring, the second sealing ring is set on the upper part of the atomizing core; the connecting sleeve and the lower cover are plugged and connected to the atomizing core, the first sealing ring is clamped between the mounting hole and the atomizing core, and the second sealing ring is clamped on Between the connecting sleeve and the atomizing core.

With the above structure, the atomizing core is an independent and independently replaceable structure, and the first sealing ring and the second sealing ring can be used for tightening and sealing to realize the connection between the atomizing core and the lower cover, and between the atomizing core and the connecting sleeve. The connection is stable and reliable. Therefore, the disassembly and assembly of the atomizing core can be realized by plugging and unplugging, the operation is simple, the replacement is convenient, the time is short, and the user experience is good.

As a preferred method, the atomizing core and the bottom cover are detachably connected by a rotating snap mechanism.

Further, it also includes a limit mechanism for defining the circumferential position of the atomizing core when the atomizing core is inserted and removed. The limit mechanism limits the circumferential position of the atomizing core when plugging and unplugging the atomizing core, so as to ensure the oil guiding effect and reliable operation of the atomizing core after the atomizing core is inserted into the housing.

As a preferred mode, the limit mechanism includes a first vertical clamping plate and a second vertical clamping plate that are arranged parallel to each other at the bottom of the lower cover, and the outer side wall of the atomizing core is provided with the inner wall of the first vertical clamping plate. The attached first limiting plane and the second limiting plane that can be attached to the inner side wall of the second vertical splint. When installing the atomizing core, align the first limiting plane with the first vertical clamping plate and the second limiting plane with the second vertical clamping plate, and then push the atomizing core into the mounting hole of the cover to remove the mist Put the core into the shell. The limiting effect of the first vertical clamping plate and the second vertical clamping plate can prevent the deflection of the atomizing core, thereby ensuring the oil guiding and sealing effects.

As another preferred mode, the limit mechanism includes a first limit column and a second limit column that are parallel to each other and are provided on the bottom of the lower cover. The outer side wall of the atomizing core is provided with the first limit column to cooperate with the first limit column The first limiting hole and the second limiting hole that can cooperate with the second limiting column.

As a preferred manner, the rotating snap mechanism includes a first boss and a second boss provided on the inner wall of the bottom cover, and a bottom of the outer side wall of the lower cover is provided with a first transition that can fit the first boss Surface and a first clamping groove connected with the first transition surface, the bottom of the outer side wall of the lower cover is provided with a second transition surface that can be fitted with the second boss and a second clamping groove connected with the second transition surface; When connected with the bottom cover, the first boss is clamped in the first slot, and the second boss is clamped in the second slot.

When it is necessary to install the bottom cover to the lower cover, first align the first boss to the first transition surface and the second boss to the second transition surface, then push the bottom cover in the direction of the lower cover, and finally to the first slot Rotate the bottom cover in the direction of the second card slot to assemble the bottom cover and the lower cover, and the bottom cover is not easy to fall off from the lower cover. The process of removing the bottom cover from the lower cover is the reverse of the installation process. It can be seen that the process of disassembling and assembling the bottom cover is simple and convenient and takes a short time.

Further, after the atomizing core is inserted into the housing and the lower cover, a first buckle position and a second buckle position are formed; the first buckle position and the second buckle position are relatively arranged, which is convenient for the hand to grasp the force and remove the mist Chemical core.

Based on the same inventive concept, the present invention also provides an ultrasonic electronic cigarette, which is characterized by including the aforementioned ultrasonic atomizer.

Compared with the prior art, the central area of the ultrasonic atomizing sheet in the present invention has a smaller amplitude and a lower temperature, the central area of the protective layer is not easy to break or break, and it is not easy to produce harmful substances, the use cost is low, and it is more healthy and environmentally friendly; the atomizing core The replacement process is simple and convenient, the time is short, and the user experience is good; at the same time, the conductive contact of the ultrasonic atomizer is reliable and good, and the life is long.

BRIEF DESCRIPTION

FIG. 1 is a cross-sectional view of Embodiment 1 of the ultrasonic atomizing sheet of the present invention.

2 is a top view of Embodiment 1 of the ultrasonic atomizing sheet of the present invention.

FIG. 3 is a structural diagram of FIG. 2 after removing the protective layer.

4 is a bottom view of Embodiment 1 of the ultrasonic atomizing sheet of the present invention.

5 is a diagram showing the relationship between the first embodiment of the ultrasonic atomizing sheet and the position of the liquid guide.

6 is a schematic view of the surface structure of one side of the second embodiment of the ultrasonic atomizing sheet of the present invention.

7 is a schematic diagram of the surface structure on the other side of the second embodiment of the ultrasonic atomizing sheet of the present invention.

FIG. 8 is a diagram showing the relationship between the second embodiment of the ultrasonic atomizing sheet of the present invention and the liquid conducting position.

9 is a schematic view of the surface structure of one side of the third embodiment of the ultrasonic atomizing sheet of the present invention.

10 is a front cross-sectional view of an embodiment of an atomizer.

11 is a side cross-sectional view of FIG. 10.

FIG. 12 is a schematic diagram of the assembly of FIG. 10.

13 is a connection diagram of the lower cover and the atomizing core.

14 is a schematic diagram of the structure of the atomizing core.

15 is an exploded view of the upper part of FIG.

Fig. 16 is an exploded view of the middle of Fig. 10.

Fig. 17 is an exploded view of the lower part of Fig. 10.

18 is a schematic diagram of the structure of the lower cover.

19 is a schematic diagram of the bottom cover structure.

Among them, 1 is the shell, 2 is the atomizing core, 201 is the liquid guide, 202 is the ultrasonic atomizer, 2021 is the piezoelectric substrate, 2022 is the first electrode layer, 20221 is the through hole, 20222 is the extension, and 2023 is the first Two-electrode layer, 20231 is a through hole, 2024 is a protective layer, 20241 is a convex portion, 2025 is a third electrode layer, 2026 is a through groove, 2027 is a conductive connection layer, 203 is a first sealing ring, 204 is an outer sleeve, 2041 It is the first limit plane, 2042 is the second limit plane, 205 is the atomization seat, 206 is the electronic wire, 207 is the inner sleeve, 208 is the sealing lip, 209 is the second seal ring, and 2010 is the compression spring. 3 is the lower cover, 301 is the mounting hole, 302 is the first vertical clamping plate, 303 is the second vertical clamping plate, 304 is the first transition surface, 305 is the first clamping slot, 306 is the second transition surface, and 4 is the bottom Cover, 401 is the first boss, 402 is the second boss, 6 is the first button position, 7 is the second button position, 8 is the connecting sleeve, 801 is the oil hole, 9 is the oil tank, 10 is Conductive mechanism, 1001 is a conductive ring, 1002 is an elastic electrode, 1003 is an insulating ring, 1004 is a conductive sheet, 1005 is a first screw, 1006 is an electrode sleeve, 11 is a PCB, 12 is a third sealing ring 13 is the compression ring, 14 is the oil injection cap, 1401 is the oil injection hole, 1402 is the air inlet hole, 15 is the suction nozzle, 16 is the gasket, 17 is the second screw, 18 is the air sleeve, 1801 is the air hole, 19 For the intake pipe, 20 is the outlet channel.

detailed description

As shown in FIGS. 1 to 5, 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 of the piezoelectric substrate 2021. A second electrode layer 2023 on the surface, a protective layer 2024 is fixed on the outer surface of the first electrode layer 2022; a through hole 20221 is defined in the central area of the first electrode layer 2022. 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 shape of the through hole 20221 is not limited to a circle, and may also be a trapezoid, a square, or the like.

Since the through hole 20221 is formed in the central region of the first electrode layer 2022, no electrode layer is provided on the central region of the piezoelectric substrate 2021 corresponding to the side surface of the first electrode layer 2022, so that the central region of the piezoelectric substrate 2021 is actually working There is no reverse piezoelectric effect or a weak reverse piezoelectric effect, which effectively relieves the oscillation intensity of the central area of the ultrasonic atomizing sheet 202.

As shown in FIG. 5, the oscillation intensity of the central area of the ultrasonic atomization sheet 202 is weak, so the atomization effect of the central area is relatively weak; the oscillation intensity of the outer periphery of the through hole 20221 is strong, so the atomization effect of the outer periphery of the through hole 20221 is relatively strong Therefore, the central area of the protective layer 2024 is not easily broken or damaged, prolonging the service life of the protective layer 2024 and the ultrasonic atomizing sheet 202, and reducing the probability that the human body will absorb debris generated by the cracking of the protective layer 2024. In addition, even if the central region of the protective layer 2024 is broken, since the central region corresponding to the first electrode layer 2022 is the through hole 20221 and no electrode layer is provided, the first electrode layer 2022 will not be exposed, and the liquid guide 201 will not directly The first electrode layer 2022 is in contact, so as to prevent the liquid (liquid oil, etc.) of the liquid guide 201 from directly contacting the electrode layer to generate a chemical reaction and generate harmful substances.

At the same time, due to the weaker oscillation intensity in the central area of the ultrasonic atomizing sheet 202, the temperature in the central area of the ultrasonic atomizing sheet 202 is lower, and it is not easy to scorch the liquid guide 201 to produce harmful substances during use. The liquid guide 201 is used Long lifespan, reduced use cost and health and environmental protection.

As shown in FIGS. 1 to 5, the protective layer 2024 is provided with a convex portion 20241 corresponding to the through hole 20221, and the convex portion 20241 is provided in the through hole 20221. Since the convex portion 20241 is provided, the thickness of the central area of the protective layer 2024 is increased, and the central area of the protective layer 2024 can be further prevented from cracking.

The shape of the convex portion 20241 matches the through hole 20221, so that the protective layer 2024 can better protect the first electrode layer 2022 and prevent exposure.

In the drawing, the central area of the protective layer 2024 is thicker than the edge portion, and the portion with increased thickness forms a convex portion extending into the through hole 20221. In addition, the overall thickness of the protective layer 2024 may also be uniform, and only project in the middle region to the through hole 20221 to form a convex portion extending into the through hole 20221. This method is not shown in the drawings, but does not affect the present invention. Those skilled in the art understand and implement the present invention.

The first electrode layer 2022 and the second electrode layer 2023 are silver layers.

The protective layer 2024 is a glass glaze layer.

The piezoelectric substrate 2021 is made of piezoelectric ceramics.

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.

As shown in FIGS. 6 to 8, the second 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 side of the piezoelectric substrate 2021. A second electrode layer 2023 on the surface, a protective layer 2024 is fixed on the outer surface of the first electrode layer 2022; a through hole 20231 is defined in the central area of the second electrode layer 2023. 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.

In the second embodiment, the one side surface of the piezoelectric substrate 2021 is entirely covered with the first electrode layer 2022, and the first electrode layer 2022 is covered with the protective layer 2024, so the production process of the side surface is simple. The other side surface of the piezoelectric substrate 2021 is provided with a ring-shaped second electrode layer 2023, that is, both the center area and the edge area of the side surface are electrodeless layers.

Since the through hole 20231 is formed in the central region of the second electrode layer 2023, no electrode layer is provided on the central region of the piezoelectric substrate 2021 corresponding to the side surface of the second electrode layer 2023, so that the central region of the piezoelectric substrate 2021 is actually working There is no reverse piezoelectric effect or a weak reverse piezoelectric effect, which effectively relieves the oscillation intensity of the central area of the ultrasonic atomizing sheet 202.

Because the oscillation intensity of the central area of the ultrasonic atomizing sheet 202 is weak, the central area of the protective layer 2024 is not easily broken or damaged, extending the service life of the protective layer 2024 and the ultrasonic atomizing sheet 202, and reducing the occurrence of human body absorption to the protective layer 2024. The probability of debris reduces the probability that the protective layer 2024 ruptures the liquid guide 201 and directly contacts the first electrode layer 2022 to generate harmful substances.

The protective layer 2024 is a glass glaze layer.

The piezoelectric substrate 2021 is made of piezoelectric ceramics.

As shown in FIG. 9, the third embodiment of the ultrasonic atomizing sheet 202 repeats the second embodiment, the difference is that: a third electrode layer 2025 on the side surface of the piezoelectric substrate 2021 is further provided in the through hole 20231, and the third electrode layer 2025 A through groove 2026 is formed between the second electrode layer 2023, and the third electrode layer 2025 and the second electrode layer 2023 are connected by a conductive connection layer 2027. The through groove 2026 is ring-shaped without an electrode layer and is provided in the middle region. Therefore, in the actual working process of the ultrasonic atomizing sheet 202, the piezoelectric substrate 2021 portion corresponding to the through groove 2026 without the electrode layer does not generate reverse piezoelectric effect or produce The reverse piezoelectric effect is weaker, and the reverse piezoelectric effect corresponding to the third electrode layer 2025 at the center is also weaker, thereby effectively alleviating the oscillation intensity in the central area of the ultrasonic atomizing sheet 202. Since the coverage area of the electrode layer in the middle region is reduced, the oscillation intensity of the center region relative to the portion where the second electrode layer 2023 is provided in the outer ring is weak, so that the temperature of the center region is low and the atomization effect is relatively weak.

The conductive connection layer 2027 is fixed on the side surface of the piezoelectric substrate.

The first electrode layer 2022, the second electrode layer 2023, and the conductive connection layer 2027 are all silver layers. The first electrode layer 2022, the second electrode layer 2023, and the conductive connection layer 2027 are all provided on the surface of the piezoelectric substrate 2021 by processes such as electroplating and printing. Therefore, the processing technology is simple.

The same parts of Embodiment 3 as Embodiment 2 are not repeated here, but it does not affect the understanding and implementation of the present invention by those skilled in the art.

As shown in FIGS. 10 to 19, an ultrasonic atomizer in an ultrasonic electronic cigarette includes a housing 1 and an atomizing core 2 in the housing 1, the atomizing core 2 includes a liquid guide 201, and the atomizing core 2 further includes any implementation In the ultrasonic atomizing sheet 202 described in any one of Examples 1 to 3, the liquid guide 201 is in contact with the outer surface of the protective layer 2024 of the ultrasonic atomizing sheet 202.

The bottom of the housing 1 is provided with a lower cover 3, and the bottom of the lower cover 3 is connected to the bottom cover 4. The upper section of the atomizing core 2 passes through the mounting hole 301 on the lower cover 3 and is provided in the housing 1, and the housing 1 is provided with a connecting sleeve 8, The upper section of the atomizing core 2 is provided in the connecting sleeve 8, the atomizing core 2 is detachably connected to the lower cover 3; the lower section of the atomizing core 2 is provided in the bottom cover 4, and the atomizing core 2 is detachably connected to the bottom cover 4. The first sealing ring 203 is sleeved at the position corresponding to the mounting hole 301 outside the middle section of the atomizing core 2, and the second sealing ring 209 is sleeved over the upper section of the atomizing core 2; both the connecting sleeve 8 and the lower cover 3 are plugged into and out of the atomizing core 2 In connection, the first sealing ring 203 is sandwiched between the mounting hole 301 and the atomizing core 2, and the second sealing ring 209 is sandwiched between the connecting sleeve 8 and the atomizing core 2. The inner wall of the mounting hole 301 is a smooth surface.

The atomizing core 2 is an independent and independently replaceable structure, and the first sealing ring 203 and the second sealing ring 209 can be used to tighten and seal the atomizing core 2 and the lower cover 3, and the atomizing core 2 and the connecting sleeve 8 can be realized. Stable and reliable connection between them. Therefore, the disassembly and assembly of the atomizing core 2 can be realized by plugging and unplugging, the operation is simple, the replacement is convenient, the time is short, and the user experience is good.

The atomizing core 2 and the bottom cover 4 are detachably connected by a

rotating snap mechanism

304, 305, 306, 401, 402.

The atomizer further includes a limit mechanism for defining the circumferential position of the atomizing core 2 when the atomizing core 2 is inserted and removed. The limit mechanism limits the circumferential position of the atomizing core 2 when the atomizing core 2 is inserted and removed, thereby ensuring the oil guiding effect of the atomizing core 2 after being inserted into the housing 1 and the reliable operation of the atomizing core 2.

The limiting mechanism includes a first vertical clamping plate 302 (which may be a first limiting column) and a second vertical clamping plate 303 (which may also be a second limiting column) which are provided on the bottom of the lower cover 3 and are parallel to each other. The outer side wall of the atomizing core 2 is provided with a first limiting plane 2041 (also can be a first limiting hole) that can be fit with the inner side wall of the first vertical clamping plate 302 (which can also be the first limiting column), A second limiting plane 2042 (which may also be a second limiting hole) that fits with the inner side wall of the second vertical clamping plate 303 (which may also be a second limiting column).

When installing the atomizing core 2, align the first limiting plane 2041 with the first vertical clamping plate 302, the second limiting plane 2042 with the second vertical clamping plate 303, and then align the atomizing core 2 with the lower cover 3 mounting hole Push in 301 to install the atomizing core 2 into the housing 1. The limiting effect of the first vertical clamping plate 302 and the second vertical clamping plate 303 can prevent the atomizing core 2 from deflecting, thereby ensuring oil guiding and sealing effects.

The

rotating snap mechanism

304, 305, 306, 401, 402 includes a first boss 401 and a second boss 402 provided on the inner wall of the bottom cover 4, and the bottom of the outer wall of the lower cover 3 is provided with a first boss The first transition surface 304 that fits 401 and the first clamping slot 305 that is connected to the first transition surface 304, and the bottom of the outer side wall of the lower cover 3 is provided with a second transition surface 306 that can fit the second boss 402 And a second slot connected to the second transition surface 306 (the direction of the second slot in the drawing is not shown, but does not affect the understanding and implementation of the present invention by those skilled in the art). When the lower cover 3 is connected to the bottom cover 4, the first boss 401 is locked in the first locking slot 305, and the second boss 402 is locked in the second locking slot.

When it is necessary to install the bottom cover 4 to the lower cover 3, first align the first boss 401 to the first transition surface 304 and the second boss 402 to the second transition surface 306, and then push the bottom cover toward the lower cover 3 4. Finally, rotate the bottom cover 4 toward the first slot 305 and the second slot to assemble the bottom cover 4 and the lower cover 3, and the bottom cover 4 is not easy to fall off the lower cover 3. The process of removing the bottom cover 4 from the lower cover 3 is the reverse of the installation process. It can be seen that the disassembly and assembly process of the bottom cover 4 is simple and convenient, and takes a short time.

The first transition surface 304, the first clamping groove 305, the second transition surface 306, and the second clamping groove are sequentially arranged along the circumferential direction of the side wall of the lower cover 3, and the first transition surface 304 is opposite to the second transition surface 306. The slot 305 is opposite to the second card slot. The bottom cover 4 can be detached by inserting and removing and rotating the bottom cover 90 degrees, and the atomizing core 2 is further taken out, and the process of replacing the atomizing core 2 is convenient and quick.

After the atomizing core 2 is inserted into the housing 1 and the lower cover 3, a first buckle position 6 and a second buckle position 7 are formed; the first buckle position 6 and the second buckle position 7 are relatively arranged to facilitate hand gripping Remove the atomizing core 2 by force. At the same time, the surface of the outer wall of the lower section of the atomizing core 2 is knurled, so that it is not easy to slip when the hand is held, and it is more convenient to take out the atomizing core 2.

An oil bin 9 is enclosed between the housing 1, the lower cover 3 and the connecting sleeve 8, and the oil bin 9 is in turn communicated with the atomizing surface of the ultrasonic atomizing sheet 202 through the oil hole 801 on the connecting sleeve 8, the liquid guide 201.

The ultrasonic atomizing sheet 202 is electrically connected to the conductive mechanism 10 on the bottom cover 4.

The atomizing core 2 includes an outer sleeve 204, and the ultrasonic atomizing sheet 202 is fixed in the outer sleeve 204 through an atomizing seat 205. The atomizing seat 205 is made of silicone.

The first limiting plane 2041 and the second limiting plane 2042 are both disposed on the outer side wall of the outer sleeve 204.

The second electrode layer 2023 of the ultrasonic atomizing sheet 202 is provided on the bottom surface of the ultrasonic atomizing sheet 202. The first electrode layer 2022 of the ultrasonic atomizing sheet 202 is electrically connected to one end of the electronic wire 206, and the other end of the electronic wire 206 passes through the atomizing seat 205 And bend along the outer wall of the atomizing seat 205 to the bottom surface of the atomizing seat 205; the conductive mechanism 10 includes a conductive ring 1001, an elastic electrode 1002 and an insulating ring 1003, the conductive ring 1001 is fixed in the bottom cover 4, the elastic electrode 1002 insulating ring 1003 is fixed in the conductive ring 1001; when the lower cover 3 is connected to the bottom cover 4, the elastic electrode 1002 is in contact with the second electrode layer 2023 of the ultrasonic atomizing sheet 202, and the free end of the electronic wire 206 is sandwiched between the conductive ring 1001 and the mist Between the seats 205.

After the bottom cover 4 and the lower cover 3 are connected, the second electrode layer 2023 of the ultrasonic atomizing sheet 202 relies on the elastic electrode 1002 to contact and conduct electricity, and the first electrode layer 2022 of the ultrasonic atomizing sheet 202 relies on the conductive ring 1001 to press the electronic wire 206 wire ; Conductive contact is reliable and good, long life.

The atomizing core 2 further includes an inner sleeve 207. The liquid guide 201 includes a cup-shaped oil-conducting cotton. The lower section of the inner sleeve 207 is sleeved in the upper section of the outer sleeve 204. Between the outer sleeves 204, the outer bottom surface of the oil guide cotton is in contact with the atomizing surface of the ultrasonic atomizing sheet 202. The atomizing core 2 further includes a silicone material sealing lip 208 sleeved between the outer sleeve 204 and the connecting sleeve 8. The sealing lip 208 can further enhance the tight sealing effect between the atomizing core 2 and the connecting sleeve 8 to ensure atomization Core 2 plug-in connection effect and sealing effect. The second seal ring 209 is provided between the inner sleeve 207 and the connecting sleeve 8.

The cup-shaped oil-conducting cotton is provided with a cotton-pressing spring 2010. One end of the cotton-conducting spring 2010 is in contact with the inner sleeve 207, and the other end is in contact with the inner bottom surface of the cup-shaped oil-guiding cotton.

The conductive mechanism 10 further includes a conductive sheet 1004, a first screw 1005 and an electrode sleeve 1006. The electrode sleeve 1006 is sleeved between the elastic electrode 1002 and the insulating ring 1003. The first screw 1005 fixes the PCB 11 on the conductive ring 1001 and the elastic electrode 1002 The conductive sheet 1004 is electrically connected to the PCB 11.

A third sealing ring 12 is provided between the housing 1 and the lower cover 3.

A compression ring 13 is provided between the bottom cover 4 and the lower cover 3.

The top of the housing 1 is connected to the suction nozzle 15 through the oil filling cap 14. The oil injection cap 14 is provided with an oil injection hole 1401 for injecting oil into the oil tank 9. A gasket 16 is provided between the oil filling cap 14 and the oil tank 9.

The gas insulating sleeve 18 is fixed in the oil injection cap 14 by the second screw 17.

The housing 1 is also provided with an air intake pipe 19, one end of the air intake pipe 19 is connected to the air-insulating sleeve 18, and the other end of the air intake pipe 19 extends into the cup-shaped oil-conducting cotton. An air outlet channel 20 is formed between the air inlet pipe 19 and the inner sleeve 207. An air inlet 1402 is formed in the oil injection cap 14, and an air hole 1801 is defined in the air-insulating sleeve 18. The air inlet 1402, the air inlet 1801, the air inlet pipe 19, the air outlet channel 20, and the suction nozzle 15 are communicated in sequence.

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 protective layer (2024) is fixed on the outer surface of the first electrode layer (2022); characterized in that the first electrode layer (2022) and / or the second electrode layer (2023) Through holes (20221, 20231) are provided in the central area.
The ultrasonic atomizing sheet according to claim 1, wherein the through hole (20221) is opened in the central area of the first electrode layer (2022); and the protective layer (2024) is provided with a through hole (20221) ) Corresponding convex portion (20241), the convex portion (20241) is provided in the through hole (20221).
The ultrasonic atomizing sheet according to claim 1, characterized in that the through hole (20221) is opened in the central area of the second electrode layer (2023); and the piezoelectric substrate is also provided in the through hole (20231) (2021) The third electrode layer (2025) on the side surface, a through groove (2026) is formed between the third electrode layer (2025) and the second electrode layer (2023), the third electrode layer (2025) and the second electrode layer (2023) are connected by a conductive connection layer (2027).
The ultrasonic atomizing sheet according to claim 3, wherein the conductive connecting layer (2027) is fixed on the surface of the piezoelectric substrate side.
The ultrasonic atomizing sheet according to any one of claims 1 to 3, characterized in that, the first electrode layer (2022) has a second electrode layer (2023) corresponding to the second electrode layer (2023) which is bent and extended to the piezoelectric substrate (2021) Extension of the side surface (20222).
An ultrasonic atomizer includes a housing (1) and an atomizing core (2) in the housing (1). The atomizing core (2) includes a liquid guide (201), characterized in that the atomizing core (2 ) Also includes the ultrasonic atomizing sheet (202) according to any one of claims 1 to 5, and the liquid guide (201) is in contact with the outer surface of the protective layer (2024) of the ultrasonic atomizing sheet (202).
The ultrasonic atomizer according to claim 6, characterized in that the bottom of the casing (1) is provided with a lower cover (3), the bottom of the lower cover (3) is connected with the bottom cover (4), and the upper section of the atomizing core (2) Pass through the mounting hole (301) on the lower cover (3) and set in the casing (1), the casing (1) is provided with a connecting sleeve (8), and the upper section of the atomizing core (2) is provided in the connecting sleeve (8) Inside, the atomizing core (2) is detachably connected with the lower cover (3); the lower section of the atomizing core (2) is set in the bottom cover (4), and the atomizing core (2) is detachably connected with the bottom cover (4);

The first sealing ring (203) is sleeved on the position corresponding to the mounting hole (301) outside the middle section of the atomizing core (2), and the second sealing ring (209) is sleeved on the upper section of the atomizing core (2); The lower cover (3) is connected to the atomizing core (2), the first sealing ring (203) is sandwiched between the mounting hole (301) and the atomizing core (2), and the second sealing ring (209) It is interposed between the connecting sleeve (8) and the atomizing core (2).
The ultrasonic atomizer according to claim 7, characterized in that the atomizing core (2) and the bottom cover (4) are detachably connected by a rotating snap mechanism (304, 305, 306, 401, 402).
The ultrasonic atomizer according to claim 7, further comprising a limit mechanism for defining the circumferential position of the atomizing core (2) when the atomizing core (2) is inserted and removed.
The ultrasonic atomizer according to claim 9, characterized in that the position-limiting mechanism comprises a first vertical clamping plate (302) and a second vertical clamping plate (303) which are arranged at the bottom of the lower cover (3) and are parallel to each other ), The outer side wall of the atomizing core (2) is provided with a first limit plane (2041) which can be fit with the inner side wall of the first vertical splint (302), and can correspond with the inner side wall of the second vertical splint (303) The second limit plane (2042).
The ultrasonic atomizer according to claim 9, characterized in that the limit mechanism comprises a first limit column and a second limit column parallel to each other provided at the bottom of the lower cover (3), and the atomizing core ( 2) The outer side wall is provided with a first limiting hole that can cooperate with the first limiting column and a second limiting hole that can cooperate with the second limiting column.
The ultrasonic atomizer according to claim 8, characterized in that the rotating snap mechanism (304, 305, 306, 401, 402) includes a first boss (401) provided on the inner wall of the bottom cover (4) ) And the second boss (402), the bottom of the outer side wall of the lower cover (3) is provided with a first transition surface (304) that can be attached to the first boss (401) and a phase with the first transition surface (304) The first clamping slot (305), the bottom of the outer side wall of the lower cover (3) are provided with a second transition surface (306) that can be fitted with the second boss (402) and a phase with the second transition surface (306) The second slot is connected; when the lower cover (3) is connected to the bottom cover (4), the first boss (401) is locked in the first slot (305), and the second boss (402) is locked in In the second card slot.
The ultrasonic atomizer according to claim 7, characterized in that, after the atomizing core (2) is inserted into the housing (1) and the lower cover (3), a first buckle position (6) and a second The hand clasping position (7); the first clasping position (6) and the second clasping position (7) are relatively arranged.
An ultrasonic electronic cigarette, characterized by comprising the ultrasonic atomizer according to any one of claims 6 to 13.