Atomizing sheet

Abstract

The utility model discloses an atomizing sheet, which comprises a base, a piezoelectric ceramic and a flexible circuit board, the base comprises an inner ring part, an atomizing part and a positive pole pin, and the positive pole pin is used for being connected with a positive pole of an external power supply; the piezoelectric ceramic is in contact with the inner ring part; the flexible circuit board comprises a first annular circuit board and an extension part, and the extension part is electrically connected with the first annular circuit board and is used for being connected with a negative electrode of an external power supply; the first annular circuit board is attached to the end, away from the inner ring part, of the piezoelectric ceramic, and a negative electrode feed point is formed on the portion, attached to the piezoelectric ceramic, of the first annular circuit board. According to the utility model, the positive electrode pin and the inner ring part can be connected into an integrated structure, and the extension part and the first annular circuit board can be connected into an integrated structure. Electric connection with an external power supply does not need to be led out in a welding spot welding wire mode, and the risks of poor contact and short circuit caused by loose welding spots or too small welding spots can be reduced. And the integrated structure can reduce energy loss in the electric energy transmission process, so that the atomization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomization device technical field especially relates to an atomization piece. BACKGROUND

[0002] The atomization piece is the core of a humidifier or an atomizer, generally composed of a piezoelectric ceramic ring and a metal diaphragm, which changes water into mist through high-frequency oscillation. When in use, the piezoelectric ceramic ring is powered to generate several hundred thousand vibrations per second, driving the metal diaphragm to vibrate. The metal diaphragm of the atomization piece continuously hits the liquid surface while in contact with water or liquid medicine, causing the water or liquid medicine to be sprayed out of the micropores of the metal diaphragm in the form of mist.

[0003] In the related art, the atomization piece leads out the positive and negative poles through soldering points and soldering wires, and the soldering position is small, which can easily cause poor contact and short circuit. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides an atomization piece, which can cancel the soldering points and soldering wires, and reduce or even avoid the risk of poor contact and short circuit.

[0005] According to the atomization piece of the first aspect of the utility model, the base includes an inner ring part, an atomization part and a positive electrode lead, the inner ring part is made of a metal material, and the atomization part is arranged in the hollow area of the inner ring part; the piezoelectric ceramic is in contact with the inner ring part; the flexible circuit board includes a first annular circuit board and an extension part, the extension part is electrically connected with the first annular circuit board; the first annular circuit board is attached to one end of the piezoelectric ceramic away from the inner ring part, and a negative pole feed point is formed in the part where the first annular circuit board is attached to the piezoelectric ceramic; wherein the positive electrode lead and the inner ring part are connected as an integral structure, and the positive electrode lead is used for connecting the positive pole of an external power supply; and / or the extension part and the first annular circuit board are connected as an integral structure, and the extension part is used for connecting the negative pole of an external power supply.

[0006] According to the atomization piece of the utility model, the positive electrode lead and the inner ring part can be connected as an integral structure, and the extension part and the first annular circuit board can be connected as an integral structure. The atomization piece can be electrically connected with an external power supply without the need for soldering points and soldering wires, which can reduce the risk of poor contact and short circuit caused by loose soldering points or small soldering points. In addition, the integral structure can reduce energy loss in the process of electric energy transmission, thereby improving the atomization efficiency.

[0007] According to some embodiments of the utility model, the atomization piece further includes a first temperature sensor and / or a breathing sensing detection probe electrically connected with the first annular circuit board.

[0008] According to some embodiments of the utility model, the flexible circuit board further includes a second annular circuit board and a connecting part, the connecting part connects the second annular circuit board and the first annular circuit board, the second annular circuit board is arranged along the axial direction of the inner ring part and is spaced apart from the first annular circuit board, and an insulating layer is filled between the second annular circuit board and the first annular circuit board, the atomizing piece further includes a second temperature sensor and / or a liquid deficiency detection probe electrically connected with the second annular circuit board.

[0009] According to some embodiments of the utility model, the base further includes an outer ring part and a plurality of support parts, the outer ring part is arranged at the periphery of the inner ring part, and the plurality of support parts are arranged along the outer periphery of the inner ring part and are spaced apart from each other, and each support part connects the inner ring part and the outer ring part.

[0010] According to some embodiments of the utility model, the support part and the inner ring part are connected as an integral structure, and at least one of the support parts protrudes from the outer sidewall of the outer ring part to form the positive electrode lead.

[0011] According to some embodiments of the utility model, part of the structure of the support part is arranged in a bent manner, and / or part of the structure of the support part is arranged in an inclined manner with respect to the radial direction of the inner ring part.

[0012] According to some embodiments of the utility model, the inner ring part and the plurality of support parts are an integral metal structure, the outer ring part is an injection molding part, and part of the structure of the plurality of support parts is embedded in the outer ring part.

[0013] According to some embodiments of the utility model, the inner edge and the outer edge of the first annular circuit board are insulatively connected with the inner ring part to form a sealed cavity between the first annular circuit board and the inner ring part, and the piezoelectric ceramic is arranged in the sealed cavity.

[0014] According to some embodiments of the utility model, the first annular circuit board includes a board body and a conductive adhesive layer, the conductive adhesive layer is filled between the board body and the piezoelectric ceramic, and the conductive adhesive layer is electrically connected with the board body to form the negative electrode feed point.

[0015] According to some embodiments of the utility model, the atomizing part is a high polymer diaphragm with an atomizing hole, the edge of the high polymer diaphragm is connected with the inner ring part and covers the hollow area of the inner ring part, or the inner ring part and the atomizing part are an integral metal sheet, the atomizing part is located in the hollow area of the inner ring part, and the atomizing part has an atomizing hole.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples, in which:

[0018] Figure 1 It is structure schematic diagram of atomizing piece of the utility model embodiment;

[0019] Figure 2 It is structure schematic diagram of atomizing piece of the utility model embodiment;

[0020] Figure 3 It is structure schematic diagram of atomizing piece of the utility model embodiment;

[0021] Figure 4 It is structure schematic diagram of atomizing piece of the utility model embodiment;

[0022] Reference signs:

[0023] 100, atomizing piece;

[0024] 10, base;11, inner ring part;12, atomizing part;121, atomizing hole;13, positive electrode pin;14, outer ring part;15, support part;

[0025] 20, piezoelectric ceramic;

[0026] 30, flexible circuit board;31, first annular circuit board;311, board body;312, conductive adhesive layer;32, extension;33, second annular circuit board;34, connecting part;

[0027] 41, first temperature sensor;42, breathing sensing detection probe;43, second temperature sensor;44, liquid deficiency detection probe;

[0028] 50, insulating layer;51, limiting groove. DETAILED DESCRIPTION

[0029] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0030] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of up, down, front, back, left, right, etc. indicated is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] In one aspect, this application provides an atomizing sheet that can be applied to humidifiers, aromatherapy machines, medical atomization devices, etc.

[0035] In some embodiments, such as Figure 1 and Figure 2 As shown, the atomizing plate 100 includes a base 10, a piezoelectric ceramic 20, and a flexible circuit board 30.

[0036] The piezoelectric ceramic 20 is typically ring-shaped. Exhibiting the piezoelectric effect, it can deform and vibrate under the influence of an applied electric field. Specifically, the upper and lower end faces of the piezoelectric ceramic 20 are connected to the negative and positive terminals of an external power source, respectively. The negative and positive terminals of the external power source apply voltages to the upper and lower ends of the piezoelectric ceramic 20, thereby creating an electric field inside the piezoelectric ceramic 20 and causing it to vibrate.

[0037] The base 10 includes an inner ring 11, an atomizing section 12, and a positive electrode pin 13. The inner ring 11 is made of a metallic material, and the lower end face of the piezoelectric ceramic 20 contacts the inner ring 11. The inner ring 11 not only serves as a support structure but also allows for stable power transmission by connecting to the positive terminal of an external power source via the positive electrode pin 13. The atomizing section 12 is located in the hollow region of the inner ring 11 and is also directly opposite the hollow region of the piezoelectric ceramic 20. Vibrations generated by the piezoelectric ceramic 20 are transmitted to the atomizing section 12 through the inner ring 11, allowing the atomizing section 12 to contact the liquid and disperse it into tiny droplets.

[0038] The flexible circuit board 30 includes a first annular circuit board 31 and an extension 32, the extension 32 being electrically connected to the first annular circuit board 31. The first annular circuit board 31 is attached to the upper surface of the piezoelectric ceramic 20, and the portion of the first annular circuit board 31 attached to the piezoelectric ceramic 20 forms a negative electrode feed point. The extension 32 is used to connect to the negative electrode of an external power supply. The negative electrode feed point is the portion of the first annular circuit board 31 that is in direct contact with the piezoelectric ceramic 20 and conducts electricity. The negative electrode feed point is electrically connected to the negative electrode of the external power supply through the extension 32, thereby forming an electric field acting on the piezoelectric ceramic 20 between the negative electrode feed point and the inner ring portion 11.

[0039] In this embodiment, the positive pin 13 and the inner ring portion 11 can be connected as a single unit, and the extension portion 32 and the first annular circuit board 31 can be connected as a single unit. This eliminates the need for soldering wires to connect to an external power source, reducing the risk of poor contact and short circuits caused by loose or excessively small solder joints. Furthermore, the single unit structure reduces energy loss during power transmission, thereby improving atomization efficiency.

[0040] The negative electrode feed point can be ring-shaped, matching the shape of the upper surface of the piezoelectric ceramic 20, thereby forming a more uniform and tighter contact with the piezoelectric ceramic 20. The ring-shaped negative electrode feed point, in conjunction with the inner ring 11, forms a complete circuit transmission path. This improves the uniformity and stability of electrical energy transmission to the piezoelectric ceramic 20 and optimizes the vibration effect of the piezoelectric ceramic 20.

[0041] In some embodiments, the first ring circuit board 31 is not only used to form the negative feed point, but can also be equipped with some functional devices, such as the first temperature sensor 41, the breathing sensing detection probe 42, etc., to realize specific electrical functions.

[0042] like Figures 1 to 3 As shown, the atomizing plate 100 may include a first temperature sensor 41. The first temperature sensor 41 can detect the ambient temperature before atomization starts and modify the sweep frequency time during the atomization start-up process according to the ambient temperature to achieve the optimal atomization frequency.

[0043] The first low-temperature sensor is directly mounted on the first annular circuit board 31. Specifically, the outer edge size of the first annular circuit board 31 is larger than the outer edge size of the piezoelectric ceramic 20, that is, a part of the structure of the first annular circuit board 31 is located outside the piezoelectric ceramic 20, and the part can be attached to the inner ring part 11 through an insulating heat-conducting film. The first temperature sensor 41 is arranged on the part of the first annular circuit board 31 located outside the piezoelectric ceramic 20, and the detection result of the first temperature sensor 41 is actually the temperature of the inner ring part 11. Since the inner ring part 11 is made of metal, it has good heat conduction performance, so that the detection result of the first temperature sensor 41 can reflect the temperature of the atomization part 12. When the atomization work is performed, whether the atomization part 12 is invalid or structurally damaged can be judged according to the comparison result of the temperature of the atomization part 12 detected by the first temperature sensor 41 and the calibration temperature.

[0044] When the atomization sheet 100 is applied to a medical atomization device, the atomization sheet 100 can include a breathing detection sensing probe, which can detect the breathing pattern of a patient, so as to control the atomization sheet 100 to optimize the effect of atomization treatment according to the breathing pattern.

[0045] As shown in Figure 1 , Figure 2 and Figure 4 , the inner edge size of the first annular circuit board 31 is smaller than the inner edge size of the piezoelectric ceramic 20, the outer edge size of the first annular circuit board 31 is larger than the outer edge size of the piezoelectric ceramic 20, and the inner edge and the outer edge of the first annular circuit board 31 are insulatedly connected with the inner ring part 11. For example, the connection can be achieved by insulating glue, insulating coating or insulating film, so as to realize electrical isolation between the first annular circuit board 31 and the inner ring part 11, prevent current leakage and short circuit. A sealed cavity is formed between the first annular circuit board 31 and the inner ring part 11, and the piezoelectric ceramic 20 is arranged in the sealed cavity, so as to isolate the piezoelectric ceramic 20 from the external environment, especially from the liquid to be atomized, such as water and medicine.

[0046] The first annular circuit board 31 includes a board body 311 and a conductive adhesive layer 312. The board body 311 has a circuit layer, and the circuit layer is electrically connected with an external power supply and the conductive adhesive layer 312. The conductive adhesive layer 312 is filled between the board body 311 and the piezoelectric ceramic 20, and the conductive adhesive layer 312 is electrically connected with the board body 311 to form a negative electrode feed point. The external power supply transmits current to the conductive adhesive layer 312 through the circuit layer of the board body 311. The conductive adhesive layer 312 has conductivity and adhesion, can pre-assemble the piezoelectric ceramic 20 and the board body 311 together, and can also improve the contact stability of the conductive feed point with the upper end surface of the piezoelectric ceramic 20, and reduce the contact resistance.

[0047] The bottom surface of the plate body 311 can be subjected to copper exposure treatment to form conductive feeding points. The conductive feeding points can be in the form of dots, and the number of the conductive feeding points can be one, two, three or more. The shape of the conductive feeding points can also be arc-shaped or ring-shaped. The present application does not make any limitation in this regard, as long as the conductive adhesive layer 312 can completely cover all the conductive feeding points, and the shape of the conductive adhesive layer 312 matches the shape of the upper end surface of the piezoelectric ceramic 20.

[0048] In some embodiments, as shown in Figure 1 and Figure 3 , the flexible circuit board 30 further comprises a second ring-shaped circuit board 33 and a connecting portion 34 connecting the second ring-shaped circuit board 33 and the first ring-shaped circuit board 31. The second ring-shaped circuit board 33 is arranged along the axial direction of the inner ring portion 11 and spaced apart from the first ring-shaped circuit board 31, i.e., the first ring-shaped circuit board 31 and the second ring-shaped circuit board 33 are spaced apart along the height direction. An insulating layer 50 is filled between the first ring-shaped circuit board 31 and the second ring-shaped circuit board 33 to ensure electrical isolation, leaving only one conductive path of the connecting portion 34 to prevent accidental current flow between the first ring-shaped circuit board 31 and the second ring-shaped circuit board 33, thereby ensuring the stability and safety of the circuit. Other functional devices, such as a second temperature sensor 43 and a liquid shortage detection probe 44, can be provided on the second circuit board to achieve specific electrical functions.

[0049] The atomizing sheet 100 can comprise a second temperature sensor 43 electrically connected to the second ring-shaped circuit board 33. The second temperature sensor 43 can detect the temperature of the liquid medicine to prevent the inactivation of the medicine due to high temperature during atomization.

[0050] The atomizing sheet 100 can further comprise a liquid shortage detection probe 44 electrically connected to the second ring-shaped circuit board 33. The liquid shortage detection probe 44 has a spring needle. When the liquid medicine is sufficient, the spring needle can detect the signal transmitted by the atomizing diaphragm. When the liquid medicine is consumed, the sinusoidal signal disappears, and it can be determined that the liquid is in a shortage state.

[0051] As shown in Figure 1 , Figure 2 and Figure 4 , the first ring-shaped circuit board 31, the second ring-shaped circuit board 33, the connecting portion 34 and the extension portion 32 together form an integrated flexible circuit board 30. The first ring-shaped circuit board 31, the second ring-shaped circuit board 33, the connecting portion 34 and the extension portion 32 have a continuous circuit therein, which can eliminate the interfaces and connection points of different components.

[0052] The side wall of the insulating layer 50 can be provided with a limiting groove 51, and the connecting portion 34 is arranged in the limiting groove 51. The design of the limiting groove 51 can ensure that the connecting portion 34 will not be misaligned or deviated during manufacturing and assembly, thereby improving the stability and reliability of the entire flexible circuit board 30.

[0053] The insulating layer 50 can be a silicone pad, a resin pad, etc., and this application does not limit it.

[0054] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, the base 10 also includes an outer ring portion 14 and multiple support portions 15. The outer ring portion 14 is used to connect or fix to an external structure, thereby installing the atomizing plate 100 inside the medical atomizing device. The outer ring portion 14 is located around the inner ring portion 11, and multiple support portions 15 are spaced apart along the outer periphery of the inner ring portion 11, with each support portion 15 connecting the inner ring portion 11 and the outer ring portion 14. The multiple support portions 15 together effectively support the inner ring portion 11, forming multiple connection points, which can maintain the stable vibration of the inner ring portion 11. The multiple connection points tend to be evenly distributed, thereby further improving the stability and vibration uniformity of the inner ring portion 11.

[0055] The inner ring 11 and multiple support parts 15 form an integral metal structure, which improves the connection strength between the inner ring 11 and the support parts 15 to withstand high-frequency vibration. The outer ring 14 is an injection-molded part, and each of the multiple support parts 15 has a portion of its structure embedded in the outer ring 14. The integral metal structure composed of the inner ring 11 and multiple support parts 15 can be fixed to the outer ring 14 by ultrasonic welding, or the integral metal structure composed of the inner ring 11 and multiple support parts 15 can be used as an insert to form the outer ring 14. The outer ring 14 is sequentially connected to multiple support parts 15, so that a portion of the support parts 15 is wrapped by the outer ring 14, improving the connection stability between the support parts 15 and the outer ring 14 and preventing the support parts 15 and the inner ring 11 from shifting or falling off. Furthermore, the injection-molded outer ring 14 acts as an insulator, effectively isolating external electrical interference.

[0056] The outer ring 14 can be made of materials such as PP (polypropylene) and ABS (acrylonitrile-butadiene-styrene copolymer).

[0057] like Figure 1 and Figure 3 As shown, one of the support portions 15 can be used as the positive pin 13, that is, one of the support portions 15 extends to protrude from the outer side wall of the outer ring portion 14, and the support portion 15 with this protruding structure is the positive pin 13. The portion of the support portion 15 protruding from the outer side wall of the outer ring portion 14 is used for electrical connection with the positive terminal of an external power supply, while the other portions of the support portion 15 can still serve to support the inner ring portion 11.

[0058] The support portion 15 is a slender metal sheet with certain elastic properties. When the piezoelectric ceramic 20 drives the inner ring portion 11 and the atomizing portion 12 to vibrate, the support portion 15 can deform due to its elasticity, thereby increasing the amplitude of the inner ring portion 11 and the atomizing portion 12.

[0059] In the first example of the above embodiment, part of the structure of the support portion 15 can be bent. The bent portion can be L-shaped, Z-shaped, wavy, spiral or other complex shapes. The bent support portion 15 can further improve the elastic performance and help to increase the amplitude of the inner ring portion 11.

[0060] In the second example of the above embodiment, part of the structure of the support portion 15 can also be radially inclined relative to the inner ring portion 11. By increasing the length of the support portion 15, the elastic performance of the support portion 15 can be further improved, thereby increasing the amplitude of the inner ring portion 11.

[0061] It should be noted that multiple continuous inclined structures can form a bent structure, that is, the first example and the second example can be combined with each other.

[0062] In one specific implementation, the support portion 15 includes three segments. The first segment is connected to the outer wall of the inner ring portion 11, and the third segment is embedded in the inner ring portion 11 from the inner wall of the outer ring portion 14. The first segment and the third segment are spaced apart in the circumferential direction, and both the first segment and the third segment extend radially. The second segment connects the first segment and the third segment, and the second segment extends in the circumferential direction.

[0063] In some embodiments, such as Figure 1 and Figure 2 As shown, the atomizing section 12 can be a polymer membrane with atomizing holes 121, such as a polyimide (PI) membrane. The edge of the polymer membrane is connected to the inner ring section 11 and covers the hollow area of ​​the inner ring section 11. The polymer membrane and the inner ring section 11 can be fixed by adhesive bonding. The atomizing holes 121 are evenly distributed on the membrane for atomizing liquid into tiny particles. The size, shape, and distribution of these holes can be adjusted according to specific application requirements.

[0064] The atomizing section 12 can also be a metal diaphragm, such as a steel diaphragm, a palladium-nickel alloy diaphragm, or a titanium-plated metal diaphragm. The edge of the metal diaphragm is connected to the inner ring section 11 and covers the hollow area of ​​the inner ring section 11. The edge of the metal diaphragm is tightly connected to the inner ring section 11, usually by welding, bonding, or other mechanical fixing methods. Alternatively, the metal diaphragm and the inner ring section 11 can be a single piece of metal. The metal diaphragm is located in the hollow area of ​​the inner ring section 11 and has atomizing holes 121 for atomizing the liquid into tiny particles.

[0065] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An atomizing sheet, characterized by, The base comprises an inner ring part, an atomization part and a positive electrode pin, the inner ring part is made of metal material, and the atomization part is arranged in the hollow area of the inner ring part. A piezoelectric ceramic is in contact with the inner ring part. A flexible circuit board comprises a first annular circuit board and an extension part, the extension part is electrically connected with the first annular circuit board; the first annular circuit board is attached to one end of the piezoelectric ceramic away from the inner ring part, and the part of the first annular circuit board attached to the piezoelectric ceramic is formed with a negative electrode feed point. The positive electrode pin is connected with the inner ring part as an integral structure, and the positive electrode pin is used for connecting the positive electrode of an external power supply; and / or the extension part and the first annular circuit board are connected as an integral structure, and the extension part is used for connecting the negative electrode of an external power supply. The atomization sheet further comprises a first temperature sensor and / or a breathing sensing detection probe electrically connected with the first annular circuit board.

2. The atomizing sheet of claim 1, wherein The flexible circuit board further comprises a second annular circuit board and a connecting part, the connecting part connects the second annular circuit board and the first annular circuit board; the second annular circuit board and the first annular circuit board are arranged in an axial direction of the inner ring part, and an insulating layer is filled between the second annular circuit board and the first annular circuit board.

3. The atomizing sheet of claim 1, wherein The atomization sheet further comprises a second temperature sensor and / or a liquid deficiency detection probe electrically connected with the second annular circuit board. The base further comprises an outer ring part and a plurality of support parts, the outer ring part is arranged at the periphery of the inner ring part; a plurality of the support parts are arranged in an interval along the outer periphery of the inner ring part, and each of the support parts connects the inner ring part and the outer ring part.

4. The atomizing sheet of claim 1, wherein The support part and the inner ring part are connected as an integral structure, and at least one of the support parts protrudes from the outer side wall of the outer ring part to form the positive electrode pin.

5. The atomizing sheet of claim 4, wherein Part of the structure of the support part is arranged in a bending mode, and / or part of the structure of the support part is arranged in an inclined mode relative to the radial direction of the inner ring part.

6. The atomizing sheet of claim 4, wherein The inner ring part and the plurality of support parts are an integral metal structure, and the outer ring part is an injection molding part, and part of the structure of the plurality of support parts is embedded in the outer ring part.

7. The atomizing sheet of claim 4, wherein The inner edge and the outer edge of the first annular circuit board are insulatedly connected with the inner ring part to form a sealed cavity between the first annular circuit board and the inner ring part, and the piezoelectric ceramic is arranged in the sealed cavity.

8. The atomizing sheet according to any one of claims 1 to 7, wherein The first annular circuit board comprises a board body and a conductive adhesive layer, the conductive adhesive layer is filled between the board body and the piezoelectric ceramic, and the conductive adhesive layer is electrically connected with the board body to form the negative electrode feed point.

9. The atomizing sheet according to any one of claims 1 to 7, wherein The atomization part is a high polymer film sheet with an atomization hole, the edge of the high polymer film sheet is connected with the inner ring part and covers the hollow area of the inner ring part; or 10. The atomizing sheet according to any one of claims 1 to 7, wherein The inner ring part and the atomization part are an integral metal sheet, the atomization part is located in the hollow area of the inner ring part, and the atomization part has an atomization hole. ​

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