CN113262923B - Microporous atomizing sheet and atomizing device - Google Patents
Microporous atomizing sheet and atomizing device Download PDFInfo
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- CN113262923B CN113262923B CN202010092473.4A CN202010092473A CN113262923B CN 113262923 B CN113262923 B CN 113262923B CN 202010092473 A CN202010092473 A CN 202010092473A CN 113262923 B CN113262923 B CN 113262923B
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- 239000000919 ceramic Substances 0.000 claims abstract description 137
- 239000002184 metal Substances 0.000 claims abstract description 90
- 239000003292 glue Substances 0.000 claims description 61
- 239000000443 aerosol Substances 0.000 claims 2
- 238000009957 hemming Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 14
- 238000000889 atomisation Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007688 edging Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 238000000222 aromatherapy Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
Landscapes
- Special Spraying Apparatus (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention relates to a microporous atomizing sheet and an atomizing device, wherein the microporous atomizing sheet comprises a first piezoelectric ceramic and a metal film, the first piezoelectric ceramic comprises a main body part and an edge wrapping part, and the edge wrapping part surrounds the main body part; the height of the edge wrapping part is larger than that of the main body part, the part of the edge wrapping part higher than the main body part and the main body part are enclosed together to form a containing space, and the main body part is provided with a first hollow area; the metal diaphragm is adhered to the main body of the first piezoelectric ceramic and is positioned in the accommodating space of the first piezoelectric ceramic, a micropore area is arranged on the metal diaphragm, the position of the micropore area corresponds to the first hollowed-out area, and more than one micropore is arranged in the micropore area. According to the microporous atomizing sheet and the atomizing device, the metal membrane is arranged in the accommodating space of the first piezoelectric ceramic, and the first piezoelectric ceramic is hard in material and not easy to deform under stress, so that the metal membrane is not easy to be influenced by external force, and the problem of easy degumming between the metal membrane and the piezoelectric ceramic is avoided.
Description
Technical Field
The invention relates to the technical field of atomizing devices, in particular to a microporous atomizing sheet and an atomizing device.
Background
The microporous atomizing sheet in the market generally comprises piezoelectric ceramic and a metal film, and has the main functions of breaking solution into fine mist drops by using high-frequency vibration of the piezoelectric ceramic to form atomized steam, and has wide application in various fields such as household humidification, aromatherapy and beauty treatment, surface spraying, air purification, medical appliances and the like. The size of the metal membrane in the existing microporous atomization sheet is generally larger than that of the piezoelectric ceramic, so that the piezoelectric ceramic is conveniently bonded on the metal membrane by using bonding glue. However, the microporous atomizing sheet with the structure has the problem that degumming easily occurs in the using process, namely, the problem that the metal film sheet and the piezoelectric ceramic are easily separated when the outer edge of the metal film sheet is subjected to the action of external force.
Disclosure of Invention
Based on this, it is necessary to provide a microporous atomizing sheet and an atomizing device against the problem that the metal membrane and the piezoelectric ceramic of the conventional microporous atomizing sheet are easily separated.
The microporous atomizing sheet comprises a first piezoelectric ceramic and a metal film, wherein the first piezoelectric ceramic comprises a main body part and an edge wrapping part, and the edge wrapping part surrounds the main body part; the height of the edge wrapping part is larger than that of the main body part, the part of the edge wrapping part higher than the main body part and the main body part are enclosed together to form a containing space, and the main body part is provided with a first hollow area; the metal diaphragm is adhered to the main body of the first piezoelectric ceramic, and is positioned in the accommodating space of the first piezoelectric ceramic, a micropore area is arranged on the metal diaphragm, the position of the micropore area corresponds to the first hollow area, and more than one micropore is arranged in the micropore area.
In one embodiment, the difference in height between the edge covering portion and the main body portion is the depth of the accommodating space, and the depth of the accommodating space is greater than or equal to the thickness of the metal film.
In one embodiment, the microwells are tapered, rectangular, or cylindrical in shape; when the shape of the micropore is conical, the aperture of the micropore near one end of the first piezoelectric ceramic is smaller than that of the micropore far from one end of the first piezoelectric ceramic.
In one embodiment, the micropore area of the metal membrane is recessed towards the first hollowed-out area to form a groove part, and the micropore is arranged in the groove part.
In one embodiment, the groove portion is spherical or trapezoidal.
In one embodiment, at least one first glue overflow groove is formed on one surface, to which the first piezoelectric ceramic is adhered, of the metal membrane.
In one embodiment, an edge of the first piezoceramic body portion corresponds to an edge of the metal diaphragm; the edge of the first piezoelectric ceramic main body part and/or the position of the first piezoelectric ceramic close to the first hollow area is provided with the first glue overflow groove.
In one embodiment, the piezoelectric ceramic device further comprises a second piezoelectric ceramic, wherein one surface of the metal membrane is adhered to the main body of the first piezoelectric ceramic, and the other surface of the metal membrane is adhered to the second piezoelectric ceramic.
In one embodiment, the second piezoelectric ceramic is located above the accommodating space; or at least a part of the second piezoelectric ceramic is accommodated in the accommodating space.
In one embodiment, the difference between the heights of the edge covering part and the main body part is the depth of the accommodating space, and the sum of the thickness of the metal film sheet and the thickness of the second piezoelectric ceramic is smaller than or equal to the depth of the accommodating space.
In one embodiment, at least one second glue overflow groove is formed on one surface of the second piezoelectric ceramic, which is adhered to the metal membrane.
In one embodiment, the second piezoelectric ceramic is provided with a second hollow area at a position corresponding to the first hollow area.
In one embodiment, an edge of the second piezoelectric ceramic corresponds to an edge of the metal diaphragm; and the edge of the second piezoelectric ceramic and/or the position of the second piezoelectric ceramic close to the second hollow area is provided with the second glue overflow groove.
The invention also provides an atomization device which comprises the microporous atomization sheet.
The microporous atomizing sheet and the atomizing device have the beneficial effects that:
according to the microporous atomizing sheet and the atomizing device, the metal membrane is arranged in the accommodating space formed by surrounding the edge-covering part and the main body part of the first piezoelectric ceramic, and the first piezoelectric ceramic is hard in material and not easy to deform under stress, so that the metal membrane is not easy to be influenced by external force, and the problem of easy degumming between the metal membrane and the piezoelectric ceramic is further avoided.
Drawings
Fig. 1 is a schematic view of an exploded structure of a microporous atomizer plate according to an embodiment of the present invention.
Fig. 2 is a schematic view of the overall structure of a microporous atomizer plate according to an embodiment of the present invention.
Fig. 3 is a longitudinal sectional view of a microporous atomizer sheet according to an embodiment of the present invention, before the first piezoelectric ceramic and the metal membrane are bonded.
Fig. 4 is a longitudinal sectional view of a microporous atomizer sheet according to an embodiment of the present invention after bonding a first piezoelectric ceramic and a metal membrane.
Fig. 5 is a schematic view of an exploded structure of a microporous atomizer plate according to another embodiment of the present invention.
Fig. 6 is a longitudinal sectional view of a microporous atomizer sheet according to another embodiment of the present invention after bonding a first piezoelectric ceramic and a metal membrane.
Fig. 7 is a schematic view of an exploded structure of a microporous atomizer plate according to still another embodiment of the present invention.
Fig. 8 is a longitudinal cross-sectional view of a microporous atomizer plate according to another embodiment of the present invention, before the first piezoelectric ceramic and the metal membrane are bonded.
Fig. 9 is a longitudinal sectional view of a microporous atomizer sheet according to still another embodiment of the present invention after bonding a first piezoelectric ceramic and a metal membrane.
Fig. 10 is a schematic structural view of an atomization device according to an embodiment of the present invention.
Reference numerals:
the device comprises an atomization device 10, an atomization liquid container 20, a microporous atomization sheet 30, a vibrator 40, a first piezoelectric ceramic 100, a main body 110, a first hollowed-out area 111, a binding part 120, a containing space 130 and a first glue overflow groove 140; a metal membrane 200, a micropore area 210, micropores 211 and a groove portion 220; the second piezoelectric ceramic 300, the second hollow area 310 and the second glue overflow groove 320.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like are used herein for illustrative purposes only and do not represent the only embodiment.
The invention provides a microporous atomizing sheet and an atomizing device, wherein the atomizing device comprises the microporous atomizing sheet. In an embodiment, the structure of the microporous atomizing sheet is shown in fig. 1 and fig. 2, where fig. 1 is a schematic diagram of an explosion structure of the microporous atomizing sheet, fig. 2 is a schematic diagram of an overall structure of the microporous atomizing sheet after assembly, and as can be seen from fig. 1 and fig. 2, the microporous atomizing sheet includes a first piezoelectric ceramic 100 and a metal membrane 200, the first piezoelectric ceramic 100 is annularly disposed, and includes a main body portion 110 and a covered edge portion 120, the main body portion 110 is located in a central area, the covered edge portion 120 is located in an edge area, the covered edge portion 120 surrounds the main body portion 110, a first hollow area 111 is disposed in the center of the main body portion 110, the metal membrane 200 is adhered to the main body portion 110 of the first piezoelectric ceramic 100 through adhesive, a microporous region 210 is disposed on the metal membrane 200, the position of the microporous region 210 corresponds to the first hollow area 111, and the microporous region 210 is provided with more than one micropore 211. In a particular embodiment, the microwells 211 are arranged in a multi-row annular arrangement or array in the microwell region 210.
As shown in fig. 3, which is a longitudinal sectional view of the first piezoelectric ceramic 100 and the metal film 200 before being bonded, and fig. 4, which is a longitudinal sectional view of the first piezoelectric ceramic 100 and the metal film 200 after being bonded, it can be seen from fig. 3 and 4 that the height H1 of the edge-covering portion 120 is greater than the height H2 of the main body portion 110, a portion of the edge-covering portion 120 higher than the main body portion 110 and the main body portion 110 enclose together to form the accommodating space 130, and the metal film 200 is bonded to the main body portion 110 of the first piezoelectric ceramic 100 and is located in the accommodating space 130 of the first piezoelectric ceramic 100. In addition, as shown in fig. 3 and 4, a difference Δh1 between the height H1 of the edge covering portion 120 and the height H2 of the main body portion 110 is a depth of the accommodating space 130, and the depth of the accommodating space 130 is greater than the thickness H3 of the metal film 200. It is understood that in other embodiments, the depth of the accommodating space 130 may be equal to the thickness H3 of the metal film 200, and the upper surface of the metal film 200 is flush with the upper surface of the edging 120. Note that, the height H1 of the edge covering portion 120 refers to the dimension of the edge covering portion 120 in the thickness direction of the first piezoelectric ceramic 100, and the height H2 of the main body portion 110 refers to the dimension of the main body portion 110 in the thickness direction of the first piezoelectric ceramic 100.
After receiving the driving signal, the first piezoelectric ceramic 100 vibrates at a high speed with a predetermined frequency, and drives the metal membrane 200 to make a high-speed bending motion with the same frequency, and the bending Zhang Yundong generates a sufficient extrusion force on the atomized liquid in each micropore 211, breaks the atomized liquid into tiny particles, throws away from the surface of the metal membrane 200 to form atomized vapor, and the extrusion and discharge directions of the atomized vapor are shown by arrows in fig. 4. In addition, as shown in fig. 3 and 4, the micro-hole area 210 of the metal film 200 is recessed toward the first hollow area 111 to form a groove portion 220, and the micro-holes 211 are disposed in the groove portion 220, so that the atomized liquid can be more dispersed when being extruded and discharged. In addition, in particular embodiments, the shape of the micro-holes 211 may be tapered, rectangular, or cylindrical; in a preferred embodiment, the shape of the micro-holes 211 is tapered, and the aperture of the end of the micro-holes 211 close to the first piezoelectric ceramic 100 is smaller than the aperture of the end far from the first piezoelectric ceramic 100, that is, the aperture of the micro-holes 211 is reduced along the direction in which the atomized liquid is extruded and discharged, so that atomized liquid drops are extruded and discharged through the tapered micro-holes 211, and thus the atomized liquid drops are scattered less and discharged at a higher speed when the atomized liquid is extruded and discharged. In addition, the shape of the groove 220 of the metal diaphragm 200 is not limited in the present invention, and in the embodiment shown in fig. 3 and 4, the shape of the groove 220 is spherical, and it is understood that in other embodiments, the shape of the groove 220 may be trapezoidal or the like.
In addition, in one embodiment, as shown in fig. 1, 3 and 4, a first glue overflow groove 140 is disposed on a surface of the first piezoelectric ceramic 100, to which the metal film 200 is attached, where the first glue overflow groove 140 is located at an edge of the main body 110 of the first piezoelectric ceramic 100, and a position of the first glue overflow groove 140 corresponds to an edge of the metal film 200, so as to prevent glue from overflowing to a surface of the metal film 200, away from the first piezoelectric ceramic 100, and improve a product yield after assembling the microporous atomization sheet. In addition, the arrangement of the first glue overflow groove 140 can accommodate more adhesive glue, further improves the adhesive strength between the metal film 200 and the first piezoelectric ceramic 100, and reduces the possibility of degumming. The first glue overflow groove 140 is annular. In other embodiments, the first glue groove 140 may be in discrete points, which are all distributed on substantially the same circumference. Alternatively, the first glue-overflowing grooves 140 may be arc-shaped grooves separated from each other, and the arc-shaped grooves may be distributed on the same circumference.
In addition, in one embodiment, as shown in fig. 3, the width of the edge covering portion 120 is W1, the width W1 is greater than or equal to 0.3mm and less than or equal to 2mm, the width of the first glue overflow groove 140 is W2, the width W2 is greater than or equal to 0.5mm and less than or equal to 2mm, the height of the first glue overflow groove 140 is H7, and the height H7 is greater than or equal to 0.3mm and less than or equal to 1mm. Note that, the height H7 of the first glue overflow groove 140 refers to the dimension of the first glue overflow groove 140 along the thickness direction of the first piezoelectric ceramic 100, the width W1 of the edge covering portion 120 refers to the dimension of the edge covering portion 120 along the radial direction of the first piezoelectric ceramic 100, and the width W2 of the first glue overflow groove 140 refers to the dimension of the first glue overflow groove 140 along the radial direction of the first piezoelectric ceramic 100. In addition, in the embodiment shown in fig. 3, the longitudinal cross-sectional shape of the first glue overflow groove 140 is rectangular, and it is understood that, in other embodiments, the longitudinal cross-sectional shape of the first glue overflow groove 140 may be inverted triangle or semicircle, and the groove diameter of the end of the first glue overflow groove 140 near the metal film 200 is larger than the groove diameter of the end far from the metal film 200.
In another embodiment, as shown in fig. 5 and 6, the number of the first glue overflow grooves 140 is two, wherein one of the first glue overflow grooves 140 is located at the edge of the main body 110 of the first piezoelectric ceramic 100 and corresponds to the edge of the metal film 200, so as to prevent the adhesive glue from overflowing to the surface of the metal film 200 away from the first piezoelectric ceramic 100; the other first glue overflow groove 140 is located at a position of the first piezoelectric ceramic 100 near the first hollow area 111, so as to prevent the adhesive glue from overflowing to the micro-hole area 210 of the metal film 200 to block the micro-holes 211. In the embodiment shown in fig. 5 and 6, the two first glue overflow grooves 140 can accommodate more adhesive glue, and the two first glue overflow grooves 140 are spaced apart, so that the adhesive strength between the metal film 200 and the first piezoelectric ceramic 100 can be further improved, and the edge or the micropore area 210 of the metal film 200 is prevented from being separated from the first piezoelectric ceramic 100. It is understood that in other embodiments, only one first glue overflow groove 140 may be disposed on the first piezoelectric ceramic 100, where the first glue overflow groove 140 is located near the first hollow area 111 of the first piezoelectric ceramic 100, so as to prevent the adhesive glue from overflowing to the micro-hole area 210 of the metal film 200 to block the micro-holes 211. In addition, it is understood that in other embodiments, the number of the first glue grooves 140 may be more than two.
In addition, in another embodiment, as shown in fig. 7, 8 and 9, in which fig. 7 is an exploded structure schematic view of the microporous atomization sheet, it can be seen from fig. 7 that the microporous atomization sheet further includes a second piezoelectric ceramic 300, and the metal film 200 is located between the first piezoelectric ceramic 100 and the second piezoelectric ceramic 300, that is, one surface of the metal film 200 is adhered to the main body 110 of the first piezoelectric ceramic 100, and the other surface is adhered to the second piezoelectric ceramic 300. The first piezoelectric ceramic 100 and the second piezoelectric ceramic 300 are frequency-synchronized and vibrate in the same direction, thereby generating resonance, so that the atomization amount increases. As can be seen from fig. 7 to 9, the second hollow area 310 is formed in the central portion of the second piezoelectric ceramic 300, the position of the second hollow area 310 corresponds to the position of the microporous area 210 of the metal diaphragm 200 and the first hollow area 111 of the first piezoelectric ceramic 100, the microporous area 210 of the metal diaphragm 200 is recessed toward the first hollow area 111 of the first piezoelectric ceramic 100 to form the groove 220, and the micropores 211 are formed in the groove 220, as shown in fig. 8, the longitudinal sectional view before the first piezoelectric ceramic 100, the metal diaphragm 200 and the second piezoelectric ceramic 300 are bonded is shown in fig. 8, and the longitudinal sectional view after the first piezoelectric ceramic 100, the metal diaphragm 200 and the second piezoelectric ceramic 300 are bonded is shown in fig. 9.
In addition, as shown in fig. 8 and 9, the thickness of the second piezoelectric ceramic 300 is H4, the thickness of the edge covering portion 120 of the first piezoelectric ceramic 100 is H5, the thickness of the main body portion 110 of the first piezoelectric ceramic 100 is H6, the thickness of the metal film sheet 200 is H3, the difference Δh2 between the height H5 of the edge covering portion 120 and the height H6 of the main body portion 110 is the depth of the accommodating space 130, and the sum of the thickness H3 of the metal film sheet 200 and the thickness H4 of the second piezoelectric ceramic 300 is smaller than the depth of the accommodating space 130, so that both the second piezoelectric ceramic 300 and the metal film sheet 200 are accommodated in the accommodating space 130. It is understood that, in other embodiments, the sum of the thickness H3 of the metal film 200 and the thickness H4 of the second piezoelectric ceramic 300 may be equal to the depth of the accommodating space 130, and the upper surface of the second piezoelectric ceramic 300 is flush with the upper surface of the edge covering portion 120 of the first piezoelectric ceramic 100. Alternatively, in other embodiments, the sum of the thickness H3 of the metal film 200 and the thickness H4 of the second piezoelectric ceramic 300 is less than or equal to the depth of the accommodating space 130, the metal film 200 is completely accommodated in the accommodating space 130, and at least a portion of the second piezoelectric ceramic 300 is accommodated in the accommodating space 130. Alternatively, in other embodiments, the thickness H3 of the metal film 200 is equal to the depth of the accommodating space 130, that is, the upper surface of the metal film 200 is flush with the upper surface of the edging 120, and at this time, the second piezoelectric ceramic 300 is located above the accommodating space 130. When the second piezoelectric ceramic 300 is located above the accommodating space 130, the size of the second piezoelectric ceramic 300 in the radial direction is not limited, and may be greater than the radial size of the accommodating space 130, or may be less than or equal to the radial size of the accommodating space 130.
In addition, as shown in fig. 8 and 9, an annular first glue overflow groove 140 is formed on a surface of the first piezoelectric ceramic 100, to which the metal film 200 is attached, where the first glue overflow groove 140 is located at a position of the first piezoelectric ceramic 100 near the first hollow area 111, so as to prevent the adhesive glue from overflowing to the micropore area 210 of the metal film 200 and blocking the micropores 211; an annular second glue overflow groove 320 is formed in one surface, to which the metal film 200 is adhered, of the second piezoelectric ceramic 300, the second glue overflow groove 320 corresponds to the first glue overflow groove 140, and is located at a position, close to the second hollow area 310, of the second piezoelectric ceramic 300, so that adhesive is prevented from overflowing to the micropore area 210 of the metal film 200 to block the micropores 211. It is understood that in another embodiment, the first glue overflow groove 140 may be located at an edge position of the main body 110 of the first piezoelectric ceramic 100, and the second glue overflow groove 320 corresponds to the first glue overflow groove 140 and is located at an edge position of the second piezoelectric ceramic 300. Alternatively, in other embodiments, the positions of the second glue overflow groove 320 and the first glue overflow groove 140 may not correspond, that is, the first glue overflow groove 140 may be located at a position of the first piezoelectric ceramic 100 near the first hollow area 111, and the second glue overflow groove 320 is located at an edge position of the second piezoelectric ceramic 300; alternatively, the first glue overflow groove 140 may be located at an edge position of the main body 110 of the first piezoelectric ceramic 100, and the second glue overflow groove 320 is located at a position of the second piezoelectric ceramic 300 near the second hollow area 310.
In addition, it is understood that in other embodiments, two first glue overflow grooves 140 may be disposed on the first piezoelectric ceramic 100, where one first glue overflow groove 140 is located at an edge of the main body 110 of the first piezoelectric ceramic 100, and the other first glue overflow groove 140 is located at a position of the first piezoelectric ceramic 100 near the first hollow area 111. Two second glue overflow grooves 320 may be disposed on the second piezoelectric ceramic 300, where one second glue overflow groove 320 is located at an edge of the second piezoelectric ceramic 300, and the other second glue overflow groove 320 is located at a position of the second piezoelectric ceramic 300 close to the second hollow area 310. In this way, the metal film 200 can be prevented from being separated from the first piezoelectric ceramic 100 or the second piezoelectric ceramic 300 more effectively.
In one embodiment, the atomizing device 10 is configured as shown in fig. 10, and includes an atomized liquid container 20, a microporous atomizing sheet 30, and a vibrator 40, where the atomized liquid container 20 and the vibrator 40 are connected to the microporous atomizing sheet 30, and atomized liquid is stored in the atomized liquid container 20. When the atomizing device 10 works, atomized liquid is led into the microporous atomizing sheet 30, and the vibrator 40 drives the microporous atomizing sheet 30 to vibrate at high frequency, so that the atomized liquid in the microporous atomizing sheet 30 is smashed to form atomized vapor.
According to the microporous atomizing sheet and the atomizing device, the metal film 200 is arranged in the accommodating space 130 formed by enclosing the edge covering part 120 and the main body part 110 of the first piezoelectric ceramic 100, and the first piezoelectric ceramic 100 is hard in material and not easy to deform under stress, so that the metal film 200 is not easy to be influenced by external force, and the problem of easy degumming between the metal film 200 and the piezoelectric ceramic is further avoided.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (13)
1. A microporous atomizer sheet, comprising:
a first piezoelectric ceramic including a main body portion and a hemming portion surrounding the main body portion; the height of the edge wrapping part is larger than that of the main body part, the part of the edge wrapping part higher than the main body part and the main body part are enclosed together to form a containing space, and the main body part is provided with a first hollow area; and
The metal diaphragm is adhered to the main body of the first piezoelectric ceramic and is positioned in the accommodating space of the first piezoelectric ceramic, a micropore area is arranged on the metal diaphragm, the position of the micropore area corresponds to the first hollow area, and more than one micropore is arranged in the micropore area.
2. The microporous atomizer sheet according to claim 1, wherein the difference in height between the edge covering portion and the main body portion is the depth of the receiving space, and the depth of the receiving space is greater than or equal to the thickness of the metal film sheet.
3. The microporous atomizer sheet according to claim 1, wherein said micropores are tapered, rectangular or cylindrical in shape; when the shape of the micropore is conical, the aperture of the micropore near one end of the first piezoelectric ceramic is smaller than that of the micropore far from one end of the first piezoelectric ceramic.
4. The microporous atomizing sheet according to claim 1, wherein the microporous region of the metal film sheet is recessed toward the first hollowed-out region to form a groove portion, and the micropores are provided in the groove portion.
5. The microporous atomizer sheet according to claim 4, wherein the groove portion has a spherical shape or a trapezoid shape.
6. The microporous atomizing sheet according to claim 1, wherein at least one first glue overflow groove is formed on a surface of the first piezoelectric ceramic, to which the metal film is attached.
7. The microporous aerosol of claim 6, wherein an edge of the first piezoceramic body portion corresponds to an edge of the metal diaphragm; the edge of the first piezoelectric ceramic main body part and/or the position of the first piezoelectric ceramic close to the first hollow area is provided with the first glue overflow groove.
8. The microporous atomizer plate according to claim 1, further comprising a second piezoelectric ceramic, wherein one surface of said metal film is bonded to said main body portion of said first piezoelectric ceramic, and the other surface is bonded to said second piezoelectric ceramic.
9. The microporous atomizer plate according to claim 8, wherein said second piezoelectric ceramic is located above said receiving space; or at least a part of the second piezoelectric ceramic is accommodated in the accommodating space.
10. The microporous atomizer plate according to claim 9, wherein a height difference between the edge covering portion and the main body portion is a depth of the accommodating space, and a sum of a thickness of the metal film sheet and a thickness of the second piezoelectric ceramic is less than or equal to the depth of the accommodating space.
11. The microporous atomizing sheet according to claim 8, wherein at least one second glue overflow groove is provided on a surface of the second piezoelectric ceramic to which the metal film is attached.
12. The microporous aerosol of claim 11, wherein a second hollow region is disposed at a location of the second piezoelectric ceramic corresponding to the first hollow region; an edge of the second piezoelectric ceramic corresponds to an edge of the metal diaphragm; and the edge of the second piezoelectric ceramic and/or the position of the second piezoelectric ceramic close to the second hollow area is provided with the second glue overflow groove.
13. An atomising device comprising a microporous atomising sheet as claimed in any one of claims 1 to 12.
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| CN202010092473.4A CN113262923B (en) | 2020-02-14 | 2020-02-14 | Microporous atomizing sheet and atomizing device |
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| CN202010092473.4A CN113262923B (en) | 2020-02-14 | 2020-02-14 | Microporous atomizing sheet and atomizing device |
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| CN113714022A (en) * | 2021-09-26 | 2021-11-30 | 佛山市科日压电器件有限公司 | Laminated atomizing sheet and atomizing equipment |
| CN116264914A (en) * | 2021-12-17 | 2023-06-20 | 深圳摩尔雾化健康医疗科技有限公司 | Micropore atomization assembly and electronic atomization device |
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