CN116268601A - Ultrasonic atomizing sheet, atomizer and aerosol generating device - Google Patents
Ultrasonic atomizing sheet, atomizer and aerosol generating device Download PDFInfo
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- CN116268601A CN116268601A CN202111569102.1A CN202111569102A CN116268601A CN 116268601 A CN116268601 A CN 116268601A CN 202111569102 A CN202111569102 A CN 202111569102A CN 116268601 A CN116268601 A CN 116268601A
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- 239000000443 aerosol Substances 0.000 title claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 164
- 229910052751 metal Inorganic materials 0.000 claims abstract description 77
- 239000002184 metal Substances 0.000 claims abstract description 77
- 239000010410 layer Substances 0.000 claims description 86
- 239000012790 adhesive layer Substances 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 3
- 238000003466 welding Methods 0.000 abstract description 27
- 238000000889 atomisation Methods 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 210000003298 dental enamel Anatomy 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention provides an ultrasonic atomizing sheet, an atomizer and an aerosol generating device, wherein in the ultrasonic atomizing sheet structure, a first metal sheet is arranged on a first electrode layer, a first lug extending out of the area where a piezoelectric ceramic sheet is arranged on the first metal sheet, a second metal sheet is arranged on a second electrode layer, a second lug extending out of the area where the piezoelectric ceramic sheet is arranged on the second metal sheet, and voltage can be respectively applied to the first surface and the second surface of the piezoelectric ceramic sheet through a power supply device only by welding two leads on the parts of the first lug and the second lug extending out of the area where the piezoelectric ceramic sheet is arranged. When the ultrasonic atomization sheet works, as the first electrode lug and the second electrode lug extend out of the area where the piezoelectric ceramic sheet is located respectively, welding spots can be guaranteed to be located outside the ceramic area of the piezoelectric ceramic sheet, the defect that stress of the piezoelectric ceramic at the welding spots is unbalanced can be eliminated, the influence on vibration performance of the piezoelectric ceramic is avoided, and dark cracking or direct cracking of the piezoelectric ceramic is prevented.
Description
Technical Field
The invention belongs to the technical field of simulated smoking, and particularly relates to an ultrasonic atomization sheet, an atomizer and an aerosol generating device.
Background
The aerosol generating device generally comprises an atomizer and a power supply device electrically connected with the atomizer, and the atomizer can heat and atomize aerosol forming matrixes stored in the atomizer under the electric driving action of the power supply device so as to be sucked by a user to achieve the effect of simulating smoking.
Currently, in the structure of an ultrasonic atomizing sheet of an atomizer, an electrode layer is generally disposed on a piezoelectric ceramic, and a lead wire is welded in a ceramic region of the piezoelectric ceramic (including the case where the lead wire is welded on the piezoelectric ceramic and the case where the lead wire is welded on the electrode layer), and a voltage is applied to the piezoelectric ceramic through the lead wire connected to a power supply so as to resonate the piezoelectric ceramic. When the ultrasonic atomization sheet works, the lead wire is directly welded in the ceramic area of the piezoelectric ceramic, so that the phenomenon that the stress of the piezoelectric ceramic at the welding point is obviously increased easily occurs, the piezoelectric ceramic is unbalanced in vibration, the vibration performance of the piezoelectric ceramic is affected, and the internal dark crack or direct crack of the piezoelectric ceramic can be caused under the condition of unbalanced stress.
Disclosure of Invention
Based on the above-mentioned problems existing in the prior art, an object of an embodiment of the present invention is to provide an ultrasonic atomization sheet, so as to solve the problems that in the prior art, a lead wire is directly welded in a ceramic area of a piezoelectric ceramic, so that stress of the piezoelectric ceramic at a welding point is obviously increased, vibration performance of the piezoelectric ceramic is affected, and internal dark crack or direct crack of the piezoelectric ceramic is caused.
In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided an atomizer comprising:
the piezoelectric ceramic piece is provided with a through hole in a penetrating mode at the middle position, and the two ends of the piezoelectric ceramic piece along the axial direction of the through hole are respectively provided with a first surface and a second surface;
a first electrode layer laminated on the first surface;
a second electrode layer laminated on the second surface;
the first metal sheet is arranged on one surface of the first electrode layer, which is away from the piezoelectric ceramic sheet, and is electrically connected with the first electrode layer; and
the second metal sheet is arranged on one surface of the second electrode layer, which is away from the piezoelectric ceramic sheet, and is electrically connected with the second electrode layer, and micropores are formed at the positions of the second metal sheet corresponding to the through holes;
the piezoelectric ceramic chip comprises a piezoelectric ceramic chip and a first metal sheet, wherein the piezoelectric ceramic chip is arranged on the piezoelectric ceramic chip, a first electrode lug is arranged on the first metal sheet, a second electrode lug is arranged on the second metal sheet, at least part of the first electrode lug extends out of an area where the piezoelectric ceramic chip is located, the part of the first electrode lug extending out of the area where the piezoelectric ceramic chip is located is used for being electrically connected with a power supply device, at least part of the second electrode lug extends out of the area where the piezoelectric ceramic chip is located, and the part of the first electrode lug extending out of the area where the piezoelectric ceramic chip is located is used for being electrically connected with the power supply device.
Further, the first metal sheet is a first annular protection sheet which is arranged on one surface, deviating from the piezoelectric ceramic sheet, of the first electrode layer, the first tab is arranged on the periphery of the first annular protection sheet, and the first tab extends along the radial direction of the through hole.
Further, the first annular hole of the first annular protection sheet corresponds to the through hole, the first annular protection sheet is provided with a surrounding edge which is used for being inserted into the through hole in a matched mode to position the first annular protection sheet, and the surrounding edge is formed by the first annular hole, is close to one end of the piezoelectric ceramic sheet and extends along the axial direction of the first annular hole, so that the surrounding edge can be inserted into the through hole.
Further, the second metal sheet includes a second annular protection sheet and a metal membrane part, wherein the second annular protection sheet is arranged on one surface of the second electrode layer, which is away from the piezoelectric ceramic sheet, the metal membrane part is arranged at a second annular hole of the second annular protection sheet, the micropore is arranged at the metal membrane part, the second electrode lug is arranged at the periphery of the second annular protection sheet, and the second electrode lug extends along the radial direction of the through hole.
Further, the first metal sheet is a first annular protection sheet which is arranged on one surface of the first electrode layer, which is away from the piezoelectric ceramic sheet, the second metal sheet comprises a second annular protection sheet which is arranged on one surface of the second electrode layer, which is away from the piezoelectric ceramic sheet, and a metal membrane part which is arranged at a second annular hole of the second annular protection sheet and is provided with micropores, and the first annular protection sheet and the second annular protection sheet are symmetrically arranged.
Further, the ultrasonic atomizing sheet further comprises a first conductive adhesive layer for bonding the first electrode layer and the first metal sheet, and/or the ultrasonic atomizing sheet further comprises a second conductive adhesive layer for bonding the second electrode layer and the second metal sheet.
Further, the first conductive adhesive layer and/or the second conductive adhesive layer is a conductive silver adhesive layer.
Further, the first electrode layer is a first conductive silver layer plated or printed on the first surface, and/or the second electrode layer is a second conductive silver layer plated or printed on the second surface.
Based on the above-mentioned problems in the prior art, it is a second object of an embodiment of the present invention to provide an atomizer having an ultrasonic atomizing sheet according to any one of the above-mentioned aspects.
In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided an atomizer comprising the ultrasonic atomizing sheet provided in any one of the above aspects.
Based on the above-mentioned problems existing in the prior art, it is a third object of an embodiment of the present invention to provide an aerosol generating device having an ultrasonic atomizing sheet or atomizer according to any one of the above-mentioned aspects.
In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided an aerosol generating device comprising the ultrasonic atomizing sheet or the atomizer provided in any one of the above aspects.
Compared with the prior art, the one or more technical schemes in the embodiment of the invention have at least one of the following beneficial effects:
in the ultrasonic atomizing sheet structure, the first metal sheet is arranged on the first electrode layer, the first lug extending out of the area where the piezoelectric ceramic sheet is arranged on the first metal sheet, the second metal sheet is arranged on the second electrode layer, and the second lug extending out of the area where the piezoelectric ceramic sheet is arranged on the second metal sheet. Thus, only two leads electrically connected to the power supply device are needed to be welded on the parts of the first electrode lug and the second electrode lug, which extend out of the area where the piezoelectric ceramic piece is located, so that voltage can be applied to the first surface and the second surface of the piezoelectric ceramic piece through the power supply device. When the ultrasonic atomization sheet works, as the first electrode lug and the second electrode lug extend out of the area where the piezoelectric ceramic sheet is located respectively, welding spots can be guaranteed to be located outside the ceramic area of the piezoelectric ceramic sheet, the defect that stress of the piezoelectric ceramic at the welding spots is uneven due to the fact that stress of the piezoelectric ceramic at the welding spots is obviously increased can be overcome, the vibration performance of the piezoelectric ceramic is affected due to the fact that stress of the piezoelectric ceramic at the welding spots is uneven is avoided, and the problem that the inside of the piezoelectric ceramic is dark-cracked or directly cracked due to the fact that stress of the piezoelectric ceramic is uneven can be effectively prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an ultrasonic atomizing sheet according to an embodiment of the present invention;
FIG. 2 is a schematic view of the front view of the ultrasonic atomizing sheet shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the ultrasonic atomizing sheet shown in FIG. 2;
fig. 4 is a schematic structural view of a first metal sheet according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second metal sheet according to an embodiment of the present invention;
fig. 6 is an exploded view of the ultrasonic atomizing sheet shown in fig. 1.
Wherein, each reference sign in the figure:
1-a piezoelectric ceramic piece; 11-through holes; 12-a first side; 13-a second side;
2-a first electrode layer; 3-a second electrode layer;
4-a first metal sheet; 41-a first annular ring;
5-a second metal sheet; 51-a second annular protective sheet; 52-a metal diaphragm portion; 53-a second annular ring;
6-a first tab; 7-a second lug; 8-surrounding edges; 9-ceramic region;
10-a first conductive adhesive layer; 20-a second conductive adhesive layer; 30-leading wires; 40-welding spots.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1 to 6, an ultrasonic atomizing sheet according to an embodiment of the present invention will be described. The ultrasonic atomization sheet provided by the embodiment of the invention is suitable for an atomizer of an aerosol generating device, and the aerosol generating device comprises the atomizer and a power supply device (not shown) electrically connected with the atomizer. When the ultrasonic atomizer is used, the power supply device is used for supplying electric energy to the ultrasonic atomizing sheet of the atomizer, and the piezoelectric element (the piezoelectric ceramic sheet 1) of the ultrasonic atomizing sheet can convert the electric energy into mechanical energy through the inverse piezoelectric effect under the electric driving effect, and repeatedly deforms to generate vibration. During the vibration of the piezoelectric ceramic sheet 1, the aerosol-forming substrate can be pressed out of the micropores, thereby forming a mist of fine particles.
Referring to fig. 1, fig. 2 and fig. 6 in combination, the ultrasonic atomizing sheet provided in the embodiment of the invention includes a piezoelectric ceramic sheet 1, a first electrode layer 2, a second electrode layer 3, a first metal sheet 4 and a second metal sheet 5, wherein a through hole 11 is arranged at a central position of the piezoelectric ceramic sheet 1 in a penetrating manner, and two ends of the piezoelectric ceramic sheet 1 along an axial direction of the through hole 11 are respectively provided with a first surface 12 and a second surface 13. In order to apply voltages to the first surface 12 and the second surface 13 of the piezoelectric ceramic sheet 1, respectively, so that the piezoelectric ceramic sheet 1 vibrates, it is necessary to provide the first electrode layer 2 on the first surface 12 of the piezoelectric ceramic sheet 1 and the second electrode layer 3 on the second surface 13 of the piezoelectric ceramic sheet 1. Specifically, the first electrode layer 2 is stacked on the first surface 12 of the piezoelectric ceramic plate 1, the first metal sheet 4 is disposed on a surface of the first electrode layer 2 facing away from the piezoelectric ceramic plate 1, and the first metal sheet 4 is electrically connected with the first electrode layer 2. The second electrode layer 3 is laminated on the second surface 13 of the piezoelectric ceramic plate 1, the second metal sheet 5 is arranged on one surface of the second electrode layer 3, which is away from the piezoelectric ceramic plate 1, the second metal sheet 5 is electrically connected with the second electrode layer 3, and micropores are formed at positions of the second metal sheet 5 corresponding to the through holes 11. Referring to fig. 2, 4 and 5, the first metal sheet 4 is provided with a first tab 6 for welding a lead 30 or for abutting a thimble, the second metal sheet 5 is provided with a second tab 7 for abutting a thimble, at least part of the first tab 6 extends out of the area where the piezoelectric ceramic sheet 1 is located, and at least part of the second tab 7 extends out of the area where the piezoelectric ceramic sheet 1 is located. In use, voltage can be applied to the first surface 12 and the second surface 13 of the piezoelectric ceramic sheet 1 by the power supply device only by welding the two leads 30 to the first tab 6 and the second tab 7, respectively. Thus, when the ultrasonic atomizing sheet works, as the first tab 6 and the second tab 7 respectively extend out of the area where the piezoelectric ceramic sheet 1 is located, the welding spots 40 can be ensured to be positioned outside the ceramic area 9 (the ceramic area 9 refers to the area in the broken line in fig. 2) of the piezoelectric ceramic sheet 1, that is, the lead wires 30 are not required to be directly welded in the ceramic area 9 of the piezoelectric ceramic sheet 1, so that the defect that the stress of the piezoelectric ceramic at the welding spots 40 is obviously increased to be unbalanced is eliminated, the vibration performance of the piezoelectric ceramic is influenced due to the unbalanced stress of the piezoelectric ceramic at the welding spots 40, and the problem that the internal dark crack or the direct crack of the piezoelectric ceramic is caused due to the unbalanced stress of the piezoelectric ceramic can be effectively prevented. It can be understood that when the thimble is abutted to the first tab 6 and/or the second tab 7, the first tab 6 and the second tab 7 respectively extend out of the area where the piezoelectric ceramic plate 1 is located, so that the contacts are located outside the ceramic area 9 of the piezoelectric ceramic plate 1, and the defect that the stress of the piezoelectric ceramic at the welding point 40 is obviously increased and unbalanced can be eliminated.
Compared with the prior art, the ultrasonic atomization sheet provided by the embodiment of the invention has the advantages that the first metal sheet 4 is arranged on the first electrode layer 2, the first lug 6 extending out of the area where the piezoelectric ceramic sheet 1 is arranged on the first metal sheet 4, the second metal sheet 5 is arranged on the second electrode layer 3, and the second lug 7 extending out of the area where the piezoelectric ceramic sheet 1 is arranged on the second metal sheet 5, and only two leads 30 electrically connected with the anode and the cathode of the power supply device are required to be respectively welded on the parts where the first lug 6 and the second lug 7 extend out of the area where the piezoelectric ceramic sheet 1 are respectively arranged, so that voltage can be respectively applied to the first surface 12 and the second surface 13 of the piezoelectric ceramic sheet 1 through the power supply device. Therefore, when the ultrasonic atomization sheet works, as the first lug 6 and the second lug 7 respectively extend out of the area where the piezoelectric ceramic sheet 1 is positioned, the welding spots 40 can be ensured to be positioned outside the ceramic area 9 of the piezoelectric ceramic sheet 1, the defect that the stress of the piezoelectric ceramic at the welding spots 40 is obviously increased and is unbalanced can be eliminated, the problem that the vibration performance of the piezoelectric ceramic is influenced due to the unbalanced stress of the piezoelectric ceramic at the welding spots 40 can be avoided, and the problem that the internal dark crack or the direct crack of the piezoelectric ceramic is caused due to the unbalanced stress of the piezoelectric ceramic can be effectively prevented.
Referring to fig. 1 and 6 in combination, in some embodiments, the piezoelectric ceramic plate 1 is in a ring shape, and the inner ring of the piezoelectric ceramic plate 1 is surrounded to form a through hole 11. In other embodiments, the piezoelectric ceramic sheet 1 may have a square, oval, diamond shape, etc., and the center of the piezoelectric ceramic sheet 1 has a through hole 11. Referring to fig. 1 and fig. 2 in combination, in some embodiments, the projection of the first tab 6 in the vertical direction is not coincident with the projection of the second tab 7 in the vertical direction, that is, the first tab 6 and the second tab 7 have a certain interval along the circumferential direction of the piezoelectric ceramic sheet 1, so as to facilitate the wiring installation of the ultrasonic atomization sheet.
Referring to fig. 1, fig. 4 and fig. 6 in combination, in some embodiments, the first metal sheet 4 is a first annular protection sheet, and the first annular protection sheet is covered on a surface of the first electrode layer 2 facing away from the piezoelectric ceramic sheet 1, that is, the shapes and sizes of the first annular protection sheet and the first electrode layer 2 are identical, so as to fully ensure that the first annular protection sheet and the first electrode layer 2 are fully overlapped. Of course, the shape and size of the first annular protection sheet and the first electrode layer 2 may be different. It will be appreciated that the first annular protective sheet, i.e. the first metal sheet 4, may be, but is not limited to, stainless steel or titanium. Therefore, the first annular protection sheet replaces the glass enamel protection layer on the first electrode layer 2, and can simultaneously conduct electricity and keep the integrity of the first face 12 of the piezoelectric ceramic sheet 1, so that the stress balance of the first face 12 of the piezoelectric ceramic sheet 1 is facilitated. In order to ensure that the first tab 6 is not located in the area where the piezoelectric ceramic piece 1 is located, so as to ensure that the lead 30 and the welding spot 40 of the first tab 6 are not located in the area where the piezoelectric ceramic piece 1 is located, the first tab 6 is arranged on the periphery of the first annular protection piece, and the first tab 6 extends along the radial direction of the through hole 11, so that the projection of the first tab 6 in the vertical direction is not overlapped with the projection of the piezoelectric ceramic piece 1 in the vertical direction, the welding spots 40 are all located outside the ceramic area 9 of the piezoelectric ceramic piece 1, the defect that the stress of the piezoelectric ceramic at the welding spots 40 is obviously increased and is uneven is overcome, the vibration performance of the piezoelectric ceramic is not only prevented from being influenced due to the uneven stress of the piezoelectric ceramic at the welding spots 40, but also the problem that the inside of the piezoelectric ceramic is dark or direct cracking is effectively prevented. It will be appreciated that referring to fig. 4 in combination, in some embodiments, the first tab 6 may be integrally formed with the first annular protection sheet, i.e., the first metal sheet 4. That is, when the first annular protection sheet, i.e., the first metal sheet 4, is a metal sheet such as stainless steel or titanium, the first tab 6 may be extended from the first annular protection sheet, i.e., the first metal sheet 4.
Referring to fig. 1, 3 and 6 in combination, in some embodiments, a first annular hole 41 of the first annular protection piece is disposed corresponding to the through hole 11, a surrounding edge 8 is disposed on the first annular protection piece, that is, the first metal piece 4, the surrounding edge 8 is located near one end of the piezoelectric ceramic piece 1 by the first annular hole 41 and extends axially along the first annular hole 41, and the surrounding edge 8 is used for being inserted into the through hole 11 in a matching manner to position the first annular protection piece. When the piezoelectric ceramic plate 1 is used, the surrounding edge 8 is only required to be inserted into the through hole 11, the surrounding edge 8 and the through hole 11 are utilized to form a concentric circle close-fitting positioning structure, and the first annular protection plate and the annular piezoelectric ceramic plate 1 are favorably assembled while keeping good concentricity in the process of assembling the first annular protection plate and the annular piezoelectric ceramic plate 1, so that the first annular protection plate and the annular piezoelectric ceramic plate 1 are concentrically aligned in the middle, and the stress balance of the piezoelectric ceramic plate 1 can be ensured.
Referring to fig. 3, 5 and 6 in combination, in some embodiments, the second metal sheet 5 includes a second annular protection sheet 51 covering a surface of the second electrode layer 3 facing away from the piezoelectric ceramic sheet 1 and a metal membrane portion 52 disposed at a second annular hole 53 of the second annular protection sheet 51, and the micro-holes are disposed in the metal membrane portion 52. The shape and the size of the second annular protection sheet 51 and the second electrode layer 3 are identical, so as to fully ensure that the second annular protection sheet 51 and the second electrode layer 3 are completely overlapped. Of course, the shape and size of the second annular protective sheet 51 and the second electrode layer 3 may be different. It is understood that the second annular protective sheet 51 may be, but is not limited to, stainless steel or titanium. In this way, the second annular protection sheet 51 replaces the glass enamel protection layer on the second electrode layer 3, and can simultaneously give consideration to conductivity and simultaneously maintain the integrity of the second surface 13 of the piezoelectric ceramic sheet 1, thereby being beneficial to the stress balance of the second surface 13 of the piezoelectric ceramic sheet 1. In order to ensure that the second lug 7 is not located in the area where the piezoelectric ceramic piece 1 is located, so as to ensure that the lead 30 and the welding spot 40 of the second lug 7 are not located in the area where the piezoelectric ceramic piece 1 is located, the second lug 7 is arranged on the periphery of the second annular protection piece 51, and the second lug 7 extends along the radial direction of the through hole 11, so that the projection of the second lug 7 in the vertical direction is not overlapped with the projection of the piezoelectric ceramic piece 1 in the vertical direction, the welding spots 40 are all located outside the ceramic area 9 of the piezoelectric ceramic piece 1, the defect that the stress of the piezoelectric ceramic is obviously increased at the welding spots 40 and is uneven is overcome, the vibration performance of the piezoelectric ceramic is influenced due to the stress imbalance of the piezoelectric ceramic at the welding spots 40 is avoided, and the problem that the inside of the piezoelectric ceramic is dark or directly broken due to the stress imbalance of the piezoelectric ceramic is effectively prevented. It will be appreciated that referring to fig. 5 in combination, in some embodiments, the second tab 7 may be integrally formed with the second annular protective sheet 51. That is, when the second annular protection sheet 51 is a metal sheet such as stainless steel or titanium, the second tab 7 may be extended from the second annular protection sheet 51.
Referring to fig. 3 and 6 in combination, in some embodiments, the first metal sheet 4 is a first annular protection sheet that is disposed on a side of the first electrode layer 2 facing away from the piezoelectric ceramic sheet 1, the second metal sheet 5 includes a second annular protection sheet 51 that is disposed on a side of the second electrode layer 3 facing away from the piezoelectric ceramic sheet 1, and a metal membrane portion 52 that is disposed at a second annular hole 53 of the second annular protection sheet 51 and has micropores, and the first annular protection sheet and the second annular protection sheet 51 are symmetrically disposed. Through carrying out the symmetry with first annular protection piece and second annular protection piece 51 and setting up, reduce the extra stress to piezoceramics piece 1, be favorable to the piezoceramics piece 1 on first electrode layer 2 and the second electrode layer 3 complete symmetry and complete for piezoceramics piece 1 after the high pressure polarization, at the radial vibration more even output of along through-hole 11, thereby make the vibration of piezoceramics piece 1 more stable, effectively prevent to lead to the fact inside dark crack or the direct fracture of piezoceramics because of piezoceramics atress is unbalanced.
Referring to fig. 6 in combination, in some embodiments, the ultrasonic atomizing sheet further includes a first conductive adhesive layer 10 for bonding the first electrode layer 2 and the first metal sheet 4. After the first electrode layer 2 is plated or printed on the first surface 12 of the piezoelectric ceramic plate 1, conductive adhesive is coated on the surface, facing away from the piezoelectric ceramic plate 1, of the first electrode layer 2, the first metal plate 4 is combined on the first electrode layer 2, and a first conductive adhesive layer 10 is formed between the first electrode layer 2 and the first metal plate 4.
Referring to fig. 6 in combination, in some embodiments, the ultrasonic atomizing sheet further includes a second conductive adhesive layer 20 for bonding the second electrode layer 3 and the second metal sheet 5. After the second electrode layer 3 is plated or printed on the second surface 13 of the piezoelectric ceramic plate 1, conductive adhesive is coated on the surface, facing away from the piezoelectric ceramic plate 1, of the second electrode layer 3, the second metal plate 5 is combined on the second electrode layer 3, and a second conductive adhesive layer 20 is formed between the second electrode layer 3 and the second metal plate 5. It should be noted that the first conductive adhesive layer 10 and/or the second conductive adhesive layer 20 may be, but not limited to, a conductive silver adhesive layer, that is, a conductive silver adhesive, for example, a conductive copper adhesive.
In some embodiments, the first electrode layer 2 may be, but is not limited to, a first conductive silver layer plated or printed on the first face 12 of the piezoelectric ceramic sheet 1, and the first electrode layer 2 may also be a first conductive gold layer or a first conductive copper layer provided on the first face 12 of the piezoelectric ceramic sheet 1, etc. The second electrode layer 3 may be, but is not limited to, a second conductive silver layer plated or printed on the second face 13. The second electrode layer 3 may also be a second conductive gold layer or a second conductive copper layer or the like provided on the second face 13 of the piezoelectric ceramic sheet 1.
The embodiment of the invention also provides an atomizer, which comprises the ultrasonic atomization sheet provided by any embodiment. Since the atomizer has all the technical features of the ultrasonic atomizing sheet provided in any of the above embodiments, it has the same technical effects as the ultrasonic atomizing sheet described above.
The embodiment of the invention also provides an aerosol generating device, which comprises the ultrasonic atomization sheet or the atomizer provided by any embodiment. Since the aerosol generating device has all the technical features of the ultrasonic atomizing sheet or atomizer provided in any one of the embodiments described above, it has the same technical effects as the ultrasonic atomizing sheet or atomizer described above.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. An ultrasonic atomizing sheet, comprising:
the piezoelectric ceramic piece is provided with a through hole in a penetrating mode at the middle position, and the two ends of the piezoelectric ceramic piece along the axial direction of the through hole are respectively provided with a first surface and a second surface;
a first electrode layer laminated on the first surface;
a second electrode layer laminated on the second surface;
the first metal sheet is arranged on one surface of the first electrode layer, which is away from the piezoelectric ceramic sheet, and is electrically connected with the first electrode layer; and
the second metal sheet is arranged on one surface of the second electrode layer, which is away from the piezoelectric ceramic sheet, and is electrically connected with the second electrode layer, and micropores are formed at the positions of the second metal sheet corresponding to the through holes;
the piezoelectric ceramic chip comprises a piezoelectric ceramic chip and a first metal sheet, wherein the piezoelectric ceramic chip is arranged on the piezoelectric ceramic chip, a first electrode lug is arranged on the first metal sheet, a second electrode lug is arranged on the second metal sheet, at least part of the first electrode lug extends out of an area where the piezoelectric ceramic chip is located, the part of the first electrode lug extending out of the area where the piezoelectric ceramic chip is located is used for being electrically connected with a power supply device, at least part of the second electrode lug extends out of the area where the piezoelectric ceramic chip is located, and the part of the second electrode lug extending out of the area where the piezoelectric ceramic chip is located is used for being electrically connected with the power supply device.
2. The ultrasonic atomizing sheet of claim 1, wherein the first metal sheet is a first annular protective sheet disposed on a side of the first electrode layer facing away from the piezoelectric ceramic sheet, the first tab is disposed on an outer periphery of the first annular protective sheet, and the first tab extends in a radial direction of the through hole.
3. The ultrasonic atomizing sheet of claim 2, wherein a first annular hole of the first annular protective sheet is provided in correspondence with the through hole, and a peripheral edge for being fitted into the through hole to position the first annular protective sheet is provided on the first annular protective sheet, the peripheral edge being adjacent to one end of the piezoelectric ceramic sheet from the first annular hole and extending axially along the first annular hole so that the peripheral edge is insertable into the through hole.
4. The ultrasonic atomizing sheet according to claim 1, wherein the second metal sheet includes a second annular protective sheet provided on a face of the second electrode layer facing away from the piezoelectric ceramic sheet and a metal membrane portion provided at a second annular hole of the second annular protective sheet, the micro-holes are provided in the metal membrane portion, the second electrode lugs are provided on an outer periphery of the second annular protective sheet, and the second electrode lugs extend in a radial direction of the through-hole.
5. The ultrasonic atomizing sheet of claim 1, wherein the first metal sheet is a first annular protective sheet disposed on a side of the first electrode layer facing away from the piezoelectric ceramic sheet, the second metal sheet includes a second annular protective sheet disposed on a side of the second electrode layer facing away from the piezoelectric ceramic sheet, and a metal membrane portion disposed at a second annular hole of the second annular protective sheet and having micropores, and the first annular protective sheet and the second annular protective sheet are disposed symmetrically.
6. The ultrasonic atomizing sheet of claim 1, further comprising a first conductive adhesive layer for bonding the first electrode layer to the first metal sheet, and/or further comprising a second conductive adhesive layer for bonding the second electrode layer to the second metal sheet.
7. The ultrasonic atomizing sheet of claim 6, wherein the first conductive adhesive layer and/or the second conductive adhesive layer is a conductive silver adhesive layer.
8. The ultrasonic atomizing sheet of any one of claims 1 to 7, wherein the first electrode layer is a first conductive silver layer plated or printed on the first face, and/or the second electrode layer is a second conductive silver layer plated or printed on the second face.
9. An atomizer comprising an ultrasonic atomizer sheet according to any one of claims 1 to 8.
10. An aerosol generating device comprising an ultrasonic aerosol sheet as claimed in any one of claims 1 to 8 or an atomizer as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111569102.1A CN116268601A (en) | 2021-12-21 | 2021-12-21 | Ultrasonic atomizing sheet, atomizer and aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111569102.1A CN116268601A (en) | 2021-12-21 | 2021-12-21 | Ultrasonic atomizing sheet, atomizer and aerosol generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116268601A true CN116268601A (en) | 2023-06-23 |
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ID=86782043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111569102.1A Pending CN116268601A (en) | 2021-12-21 | 2021-12-21 | Ultrasonic atomizing sheet, atomizer and aerosol generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116268601A (en) |
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2021
- 2021-12-21 CN CN202111569102.1A patent/CN116268601A/en active Pending
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