Atomizing sheet unit and atomizer having the same

Abstract

The utility model relates to an atomization piece unit and an atomizer with the same. The atomization piece unit comprises: a rear shell, an accommodating groove with an opening facing forward is formed on the rear shell, a first center hole and a plurality of first water filtering holes surrounding the first center hole are formed in the accommodating groove; an atomization piece arranged in the accommodating groove and having a micro-mesh area opposite to the first center hole; and a front shell fixed in the accommodating groove to constrain the atomization piece between the front shell and the rear shell, a second center hole opposite to the micro-mesh area and a plurality of second water filtering holes surrounding the second center hole are formed in the front shell. The atomization piece unit can be quickly drained and dried after cleaning, avoiding residual cleaning liquid in the atomization piece unit and prolonging the service life.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an atomizing plate unit and an atomizer having therein. Background Technology

[0002] Nebulizers can convert liquid medications into tiny aerosol particles, allowing the medication to act directly on the patient's respiratory tract and lungs through inhalation. This helps to moisturize the airways, thin sputum, and relieve coughs and asthma, and is widely used in the prevention and adjunctive treatment of respiratory diseases.

[0003] Currently, nebulizers generally include components such as a main unit, a medication cup unit, an atomizing plate unit, an inlet one-way valve, a reservoir, a mouthpiece, and a breathing mask. When the user inhales through the mouthpiece or breathing mask, the inlet one-way valve opens, and the liquid medication in the medication cup unit is atomized into an aerosol by the atomizing plate unit and smoothly enters the patient's respiratory tract. Conversely, when the user exhales, the inlet one-way valve closes to prevent the medication from being exhaled, improving drug delivery efficiency and preventing backflow that could cause biocontamination and medication waste.

[0004] With repeated use, medication residue will accumulate in the atomizing unit. This not only affects the atomization effect but also reduces the lifespan of the atomizing unit, thus requiring regular cleaning. Because the atomizing unit has a delicate structure, if cleaning fluid remains inside, it can easily damage the internal components (especially electrical components), significantly reducing the unit's lifespan.

[0005] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0006] To address or improve to some extent the technical problem of inconvenient cleaning of atomizing plate units in existing technologies, this utility model provides an atomizing plate unit. The atomizing plate unit includes: a rear housing with a forward-opening receiving groove formed thereon, a first central hole and a plurality of first filter holes surrounding the first central hole in the receiving groove; an atomizing plate disposed within the receiving groove and having a micro-mesh area opposite to the first central hole; and a front housing fixed within the receiving groove to constrain the atomizing plate between the front housing and the rear housing, the front housing having a second central hole opposite to the micro-mesh area and a plurality of second filter holes surrounding the second central hole.

[0007] Those skilled in the art will understand that the atomizing plate unit of this invention includes a rear housing, an atomizing plate, and a front housing. A forward-opening receiving groove is formed on the rear housing for mounting the atomizing plate and the front housing. A first central hole and a plurality of first filter holes surrounding the first central hole are provided in the receiving groove. The atomizing plate is arranged in the receiving groove and has a micro-mesh area opposite to the first central hole. The front housing is fixed in the receiving groove, thus constraining the atomizing plate between the front and rear housings, thereby giving the entire atomizing plate unit a stable structure. A second central hole opposite to the micro-mesh area and a plurality of second filter holes surrounding the second central hole are also provided on the front housing. Therefore, the liquid medicine can pass through the first central hole, the micro-mesh area, and the second central hole in sequence, thereby generating a fine-particle aerosol. Furthermore, because the front and rear housings are respectively provided with a plurality of first filter holes and a plurality of second filter holes, the atomizing plate unit of this invention can be quickly drained and dried after cleaning, avoiding cleaning fluid residue inside the atomizing plate unit and extending its service life.

[0008] In the preferred embodiment of the atomizing plate unit described above, the diameters of both the first central hole and the second central hole are greater than or equal to the diameter of the micro-mesh region. The diameters of both the first and second central holes are greater than or equal to the diameter of the micro-mesh region, meaning the micro-mesh region is positioned inside the first and second central holes, respectively. This ensures that a sufficient amount of liquid medicine flows into the micro-mesh region and that the aerosol atomized through the micro-mesh region flows smoothly into the second central hole.

[0009] In the preferred embodiment of the atomizing plate unit described above, the first central hole, the micro-mesh region, and the second central hole have the same center line. Arranging the first central hole, the micro-mesh region, and the second central hole on the same center line allows the liquid to have a straight flow path, reducing flow resistance.

[0010] In the preferred embodiment of the atomizing plate unit described above, the rear housing includes: a rear housing body, the rear housing body having a bottom wall and a circumferential wall extending vertically forward along the circumferential edge of the bottom wall, wherein the bottom wall and the circumferential wall together form the receiving groove, the first central hole is formed on the bottom wall, and a plurality of the first water filter holes are formed on the bottom wall or the circumferential wall. With the above arrangement, the receiving groove can be easily formed.

[0011] In the preferred embodiment of the atomizing plate unit described above, a sealing ring mounting groove is provided on the bottom wall, surrounding the first central hole. The sealing ring mounting groove is radially located between the plurality of first filter holes and the first central hole. Furthermore, the atomizing plate unit also includes a sealing ring disposed within the sealing ring mounting groove to form a sealed connection between the bottom wall and the atomizing plate. Through this arrangement, a reliable sealed connection can be formed between the bottom wall and the atomizing plate, preventing liquid leakage and improving the efficiency of liquid usage.

[0012] In the preferred embodiment of the above-described atomizing plate unit, the sealing ring includes: an annular body extending through the first central hole; a snap-fit ​​flange surrounding the annular body and located on the side of the bottom wall near the atomizing plate, wherein the snap-fit ​​flange snaps into the sealing ring mounting groove; and an abutment flange surrounding the annular body and located on the side of the bottom wall away from the atomizing plate. The snap-fit ​​flange allows the sealing ring to be conveniently and reliably fixed in the sealing ring mounting groove. Furthermore, the abutment flange allows the atomizing plate unit to abut against other components (such as a medicine cup), thereby forming a sealed connection.

[0013] In the preferred embodiment of the atomizing plate unit described above, a linear protrusion extending along its circumferential edge and toward the atomizing plate is formed on the annular body. The linear protrusion reduces the contact area between the annular body and the atomizing plate, increasing the contact pressure between the linear protrusion and the atomizing plate, thus improving the sealing effect. Furthermore, the linear protrusion can reduce the negative impact of the compression between the front and rear housings on the vibration of the atomizing plate, ensuring the atomization rate.

[0014] In the preferred embodiment of the atomizing plate unit described above, the inner circumferential surface of the linear protrusion is flush with the inner circumferential surface of the annular body. This arrangement further reduces drug residue.

[0015] In the preferred embodiment of the atomizing plate unit described above, a plurality of limiting ribs spaced apart from each other along the circumference of the first central hole are provided on the bottom wall, and the atomizing plate is constrained between the plurality of limiting ribs. The provision of limiting ribs allows the atomizing plate to be conveniently constrained on the bottom wall.

[0016] In the preferred embodiment of the atomizing plate unit described above, dispensing grooves are provided on the bottom wall, respectively located on both sides of the first central hole; and the atomizing plate includes: a mesh sheet, wherein the mesh sheet has a micromesh within the micromesh area; a piezoelectric ceramic sheet, wherein the piezoelectric ceramic sheet surrounds the mesh sheet; and a flexible electrode sheet, wherein the flexible electrode sheet has a connector pad that forms an electrical connection with the piezoelectric ceramic sheet and an electrical connector electrode arranged in the dispensing groove. The flexible electrode sheet can be easily connected to an external power source to power the piezoelectric ceramic sheet. After the piezoelectric ceramic sheet is energized, it can drive the micromesh to vibrate at high frequency, thereby converting the liquid medicine flowing through the micromesh into an aerosol. In addition, the dispensing groove can easily fix the electrical connector electrode, improving the structural stability of the entire atomizing plate.

[0017] In the preferred embodiment of the atomizing plate unit described above, each of the dispensing grooves is provided with an electrode mounting hole, and the atomizing plate unit further includes an electrode post that is inserted into the electrode mounting hole and forms an electrical connection with the electrical connector electrode. The electrode post arrangement allows the electrical connector electrode to easily form an electrical connection with external electrical components.

[0018] In the preferred embodiment of the atomizing plate unit described above, an electrode post positioning hole is formed on the bottom wall, extending along the circumferential edge of the electrode mounting hole and in a direction away from the atomizing plate. The electrode post positioning hole improves the accuracy and efficiency of electrode post positioning and installation.

[0019] In the preferred embodiment of the atomizing plate unit described above, the micromesh protrudes towards the direction close to the second central hole. This protruding structure not only enables the micromesh to resonate at a preset frequency point or within a preset frequency range, making the vibration mode meet the atomization requirements, but also facilitates oscillation and avoids abrupt mode changes due to external influences such as droplets.

[0020] In the preferred embodiment of the atomizing plate unit described above, a plurality of spaced-apart micropores are formed on the micro-mesh, and each micropore has a large-aperture end and a small-aperture end, wherein the large-aperture end is close to the first central hole, and the small-aperture end is close to the second central hole. This arrangement allows the liquid medicine to be compressed as it flows from the large-aperture end to the small-aperture end of the micropore, thereby facilitating the formation of aerosols of tiny particles.

[0021] In the preferred embodiment of the atomizing plate unit described above, the diameter of the micropores gradually decreases along the direction from the large pore end to the small pore end to facilitate processing.

[0022] In the preferred embodiment of the aforementioned atomizing plate unit, the piezoelectric ceramic plate is positioned on the side of the mesh closer to the front housing. Positioning the piezoelectric ceramic plate on the side of the mesh closer to the front housing serves two purposes: firstly, it prevents the piezoelectric ceramic plate from contacting the liquid medication, reducing the risk of short circuits in the electrical connection; secondly, it prevents the adhesive between the piezoelectric ceramic plate and the mesh from contacting the liquid medication, avoiding drug compatibility issues. Furthermore, since the thickness of the piezoelectric ceramic plate is much greater than the thickness of the mesh, if the piezoelectric ceramic plate were placed on the side of the mesh closer to the rear housing, liquid medication would inevitably remain on the piezoelectric ceramic plate, resulting in waste of medication and potential contamination of the micromesh, affecting the atomization effect in subsequent cycles.

[0023] In the preferred embodiment of the atomizing plate unit described above, the rear housing further includes extensions extending outward from both sides of the rear housing body, and a gripping wall is provided at the end of each extension. This design allows the user to easily grasp the entire atomizing plate unit, preventing contamination of the atomizing plate.

[0024] In the preferred embodiment of the atomizing plate unit described above, each extension is provided with a bending section that allows it to deform. The bending section enables the extension to have a certain degree of deformation capability, facilitating installation.

[0025] In the preferred embodiment of the atomizing plate unit described above, a snap-fit ​​protrusion for fixing the atomizing plate unit to an external component is further provided on the bent section. The snap-fit ​​protrusion allows the entire atomizing plate unit to easily engage with an external component (e.g., a medicine cup).

[0026] In the preferred embodiment of the atomizing plate unit described above, a sealing gasket mounting groove is provided on the front housing, surrounding the second central hole. The sealing gasket mounting groove is radially located between a plurality of second filter holes and the second central hole. Furthermore, the atomizing plate unit also includes a sealing gasket disposed within the sealing gasket mounting groove to form a sealed connection between the front housing and the atomizing plate. Through this arrangement, a reliable sealed connection can be formed between the atomizing plate and the front housing, preventing aerosol leakage and improving the efficiency of aerosol utilization.

[0027] In the preferred embodiment of the atomizing plate unit described above, the front housing is fixedly connected to the rear housing by welding or bonding. This arrangement allows for convenient and quick fixation of the front housing to the rear housing.

[0028] To address or improve to some extent the technical problem of inconvenient cleaning of atomizing plate units in existing technologies, this invention provides an atomizer. The atomizer includes the atomizing plate unit as described in any of the preceding claims.

[0029] Solution 1. An atomizing plate unit (10), characterized in that the atomizing plate unit (10) comprises: a rear housing (11), on which a forward-opening receiving groove (1113) is formed, wherein a first central hole (1114) and a plurality of first water filter holes (1115) surrounding the first central hole (1114) are provided in the receiving groove (1113); an atomizing plate (12), wherein the atomizing plate (12) is arranged in the receiving groove (1113) and has It has a micro-mesh area (1211) opposite to the first central hole (1114); and a front housing (13), the front housing (13) being fixed in the receiving groove (1113) to constrain the atomizing plate (12) between the front housing (13) and the rear housing (11), and a second central hole (131) opposite to the micro-mesh area (1211) and a plurality of second filter holes (132) surrounding the second central hole (131) are provided on the front housing (13).

[0030] Scheme 2. The atomizing plate unit (10) according to Scheme 1 is characterized in that the diameters of the first central hole (1114) and the second central hole (131) are both greater than or equal to the diameter of the micro-mesh region (1211).

[0031] Scheme 3. The atomizing plate unit (10) according to Scheme 1 is characterized in that the first central hole (1114), the micro-mesh region (1211) and the second central hole (131) have the same center line.

[0032] Scheme 4. The atomizing plate unit (10) according to any one of Schemes 1-3, characterized in that the rear housing (11) includes: a rear housing body (111), the rear housing body (111) having a bottom wall (1111) and a circumferential wall (1112) extending forward along the circumferential edge of the bottom wall (1111), wherein the bottom wall (1111) and the circumferential wall (1112) together form the receiving groove (1113), and the first central hole (1114) is opened on the bottom wall (1111), and a plurality of first water filter holes (1115) are opened on the bottom wall (1111) or the circumferential wall (1112).

[0033] Solution 5. The atomizing plate unit (10) according to Solution 4 is characterized in that a sealing ring mounting groove (1116) surrounding the first central hole (1114) is provided on the bottom wall (1111), the sealing ring mounting groove (1116) being located radially between a plurality of first water filter holes (1115) and the first central hole (1114); and the atomizing plate unit (10) further includes a sealing ring (14) arranged in the sealing ring mounting groove (1116) to form a sealed connection between the bottom wall (1111) and the atomizing plate (12).

[0034] Solution 6. The atomizing plate unit (10) according to Solution 5 is characterized in that the sealing ring (14) comprises: an annular body (141) extending through the first central hole (1114); a snap-fit ​​flange (142) surrounding the annular body (141) and located on the side of the bottom wall (1111) near the atomizing plate (12), wherein the snap-fit ​​flange (142) is snapped into the sealing ring mounting groove (1116); and an abutment flange (143) surrounding the annular body (141) and located on the side of the bottom wall (1111) away from the atomizing plate (12).

[0035] Solution 7. The atomizing plate unit (10) according to Solution 6 is characterized in that a linear protrusion (1411) is formed on the annular body (141) along its circumferential edge and extending toward the atomizing plate (12).

[0036] Scheme 8. The atomizing plate unit (10) according to Scheme 7 is characterized in that the inner peripheral surface of the linear protrusion (1411) is flush with the inner peripheral surface of the annular body (141).

[0037] Scheme 9. The atomizing plate unit (10) according to Scheme 4 is characterized in that a plurality of limiting ribs (1117) are provided on the bottom wall (1111) at intervals along the circumference of the first central hole (1114), and the atomizing plate (12) is constrained between the plurality of limiting ribs (1117).

[0038] Solution 10. The atomizing plate unit (10) according to Solution 4 is characterized in that a dispensing groove (1118) is provided on the bottom wall (1111) on both sides of the first central hole (1114); and the atomizing plate (12) includes: a mesh (121) having a micromesh (1212) in the micromesh area (1211); a piezoelectric ceramic sheet (122) surrounding the micromesh area (1211); and a flexible electrode sheet (123) having a connector pad (1231) electrically connected to the piezoelectric ceramic sheet (122) and an electrical connector electrode (1232) arranged in the dispensing groove (1118).

[0039] Solution 11. The atomizing plate unit (10) according to Solution 10 is characterized in that an electrode mounting hole (1119) is provided in each of the dispensing grooves (1118), and the atomizing plate unit (10) further includes an electrode post (16) inserted into the electrode mounting hole (1119) and electrically connected to the electrical connector electrode (1232).

[0040] Solution 12. The atomizing plate unit (10) according to Solution 11 is characterized in that an electrode post positioning hole (1120) is formed on the bottom wall (1111) along the circumferential edge of the electrode mounting hole (1119) and extends in a direction away from the atomizing plate (12).

[0041] Scheme 13. The atomizing plate unit (10) according to Scheme 10, characterized in that the micro-mesh (1212) protrudes toward the direction close to the second central hole (131).

[0042] Scheme 14. The atomizing plate unit (10) according to Scheme 10 is characterized in that a plurality of micro-holes spaced apart from each other are provided on the micro-mesh (1212), each of the micro-holes being provided with a large hole end and a small hole end, wherein the large hole end is close to the first central hole (1114), and the small hole end is close to the second central hole (131).

[0043] Scheme 15. The atomizing plate unit (10) according to Scheme 14 is characterized in that the diameter of the micropores gradually decreases along the direction from the large pore end to the small pore end.

[0044] Scheme 16. The atomizing plate unit (10) according to Scheme 10, characterized in that the piezoelectric ceramic plate (122) is positioned on the side of the mesh (121) near the front housing (13).

[0045] Solution 17. The atomizing plate unit (10) according to Solution 4 is characterized in that the rear housing (11) further includes extensions (112) extending outward from both sides of the rear housing body (111), and a gripping wall (1123) is provided at the end of each extension (112).

[0046] Solution 18. The atomizing plate unit (10) according to Solution 17 is characterized in that each of the extensions (112) is provided with a bending section (1121) that allows it to deform.

[0047] Scheme 19. The atomizing plate unit (10) according to Scheme 18 is characterized in that a snap-fit ​​protrusion (1122) for fixing the atomizing plate unit (10) to an external component is further provided on the bending section (1121).

[0048] Solution 20. The atomizing plate unit (10) according to Solution 1 is characterized in that a sealing gasket mounting groove (133) surrounding the second central hole (131) is provided on the front housing (13), the sealing gasket mounting groove (133) being located radially between a plurality of second water filter holes (132) and the second central hole (131); and the atomizing plate unit (10) further includes a sealing gasket (15) disposed in the sealing gasket mounting groove (133) to form a sealed connection between the front housing (13) and the atomizing plate (12).

[0049] Scheme 21. The atomizing plate unit (10) according to Scheme 1 is characterized in that the front housing (13) is fixedly connected to the rear housing (11) by welding or bonding.

[0050] Scheme 22. An atomizer (1), characterized in that the atomizer (1) includes an atomizing plate unit (10) according to any one of Schemes 1-21. Attached Figure Description

[0051] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0052] Figure 1 This is a first structural schematic diagram of an embodiment of the atomizing plate unit of this utility model;

[0053] Figure 2 This is a first exploded structural diagram of an embodiment of the atomizing plate unit of this utility model;

[0054] Figure 3 This is a second structural schematic diagram of an embodiment of the atomizing plate unit of this utility model;

[0055] Figure 4This is a second exploded structural diagram of an embodiment of the atomizing plate unit of this utility model;

[0056] Figure 5 This is a top view of an embodiment of the atomizing plate unit of this utility model;

[0057] Figure 6 This is an embodiment of the atomizing plate unit of this utility model along Figure 5 The sectional view obtained by the AA section line shown;

[0058] Figure 7 This is a first structural schematic diagram of an embodiment of the sealing ring in the atomizing plate unit of this utility model;

[0059] Figure 8 This is a second structural schematic diagram of an embodiment of the sealing ring in the atomizing plate unit of this utility model;

[0060] Figure 9 This is a top view of an embodiment of the sealing ring in the atomizing plate unit of this utility model;

[0061] Figure 10 This is an embodiment of the sealing ring in the atomizing plate unit of this utility model. Figure 9 The sectional view obtained by the BB section line shown;

[0062] Figure 11 This is a partial structural schematic diagram of an embodiment of the atomizer of this utility model.

[0063] List of reference numerals in the attached diagram:

[0064] 1. Atomizer; 10. Atomizing plate unit; 11. Rear housing; 111. Rear housing body; 1111. Bottom wall; 1112. Circumferential wall; 1113. Receiving groove; 1114. First central hole; 1115. First water filter hole; 1116. Sealing ring mounting groove; 1117. Limiting rib; 1118. Adhesive groove; 1119. Electrode mounting hole; 1120. Electrode post positioning hole; 112. Extension; 1121. Bending section; 1122. Snap-fit ​​protrusion; 1123. Grip wall; 12. Atomizing plate; 121. Micromesh; 1211. Micromesh area; 1212. Micromesh; 122. Piezoelectric ceramic plate; 123. Flexible Electrode sheet; 1231, connector pad; 1232, electrical connector electrode; 13, front housing; 131, second center hole; 132, second filter hole; 133, sealing gasket mounting groove; 14, sealing ring; 141, annular body; 1411, linear protrusion; 142, snap-fit ​​flange; 1421, protrusion; 143, abutment flange; 15, sealing gasket; 16, electrode post; 20, liquid cup; 21, mounting plate; 211, liquid outlet; 212, electrode through hole; 213, first snap-fit ​​rib; 214, second snap-fit ​​rib; 215, third snap-fit ​​rib; 22, annular wall; 221, gripping wall clearance opening; 23, liquid storage chamber. Detailed Implementation

[0065] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0066] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0067] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] To address or improve to some extent the technical problem of inconvenient cleaning of atomizing plate units in the prior art, this utility model provides an atomizing plate unit 10. The atomizing plate unit 10 includes: a rear housing 11, on which a forward-opening receiving groove 1113 is formed, a first central hole 1114 and a plurality of first water-filtering holes 1115 surrounding the first central hole 1114 are provided; an atomizing plate 12, disposed within the receiving groove 1113 and having a micro-mesh region 1211 opposite to the first central hole 1114; and a front housing 13, fixed within the receiving groove 1113 to constrain the atomizing plate 12 between the front housing 13 and the rear housing 11, a second central hole 131 opposite to the micro-mesh region 1211 and a plurality of second water-filtering holes 132 surrounding the second central hole 131 are provided on the front housing 13.

[0069] Figure 1 This is a first structural schematic diagram of an embodiment of the atomizing plate unit of this utility model;

[0070] Figure 2 This is a first exploded structural diagram of an embodiment of the atomizing plate unit of this utility model; Figure 3 This is a second structural schematic diagram of an embodiment of the atomizing plate unit of this utility model; Figure 4 This is a second exploded structural diagram of an embodiment of the atomizing plate unit of this utility model; Figure 5 This is a top view of an embodiment of the atomizing plate unit of this utility model; Figure 6 This is an embodiment of the atomizing plate unit of this utility model along Figure 5 The sectional view obtained by the AA section line shown. Figures 1-6 As shown, in one or more embodiments, the atomizing plate unit 10 of this utility model includes a rear housing 11, an atomizing plate 12, and a front housing 13. The rear housing 11 has a forward-opening receiving groove 1113; the atomizing plate 12 is arranged within the receiving groove 1113; and the front housing 13 is fixed within the receiving groove 1113 to constrain the atomizing plate 12 between the front housing 13 and the rear housing 11.

[0071] like Figures 1-6 As shown, in one or more embodiments, the rear housing 11 includes a rear housing body 111. Based on Figure 2As shown, the rear housing body 111 has a bottom wall 1111 extending generally vertically and a circumferential wall 1112 extending vertically forward along the circumferential edge of the bottom wall 1111. The bottom wall 1111 and the circumferential wall 1112 together form a forward-opening receiving groove 1113. A generally circular first central hole 1114 is provided on the bottom wall 1111, which can be connected to other components of the nebulizer 1 (e.g., the medicine cup 20), so that liquid medicine can flow through the first central hole 1114 to the atomizing plate 12. A plurality of first filter holes 1115 are also provided on the bottom wall 1111 surrounding the first central hole 1114. Each first filter hole 1115 has a generally square, rectangular, or circular shape. Preferably, the plurality of first filter holes 1115 are all the same shape and size to facilitate manufacturing. In addition, the plurality of first filter holes 1115 are configured to be evenly spaced along the circumference of the first central hole 1114 to improve the uniformity of drainage and drying. Alternatively, the plurality of first filter holes 1115 may also be provided at other locations on the rear housing 11, for example, on the circumferential wall 1112.

[0072] See also Figure 2 , Figure 4 and Figure 6 In one or more embodiments, a sealing ring mounting groove 1116 surrounding the first central hole 1114 is further provided on the bottom wall 1111. This sealing ring mounting groove 1116 is located radially between the plurality of first filter holes 1115 and the first central hole 1114. Accordingly, the atomizing plate unit 10 of this invention also includes a sealing ring 14 disposed within the sealing ring mounting groove 1116 to form a sealing connection between the bottom wall 1111 and the atomizing plate 12. The sealing ring 14 can be made of silicone, rubber, or other suitable flexible materials.

[0073] Figure 7 This is a first structural schematic diagram of an embodiment of the sealing ring in the atomizing plate unit of this utility model; Figure 8 This is a second structural schematic diagram of an embodiment of the sealing ring in the atomizing plate unit of this utility model; Figure 9 This is a top view of an embodiment of the sealing ring in the atomizing plate unit of this utility model; Figure 10 This is an embodiment of the sealing ring in the atomizing plate unit of this utility model. Figure 9 The sectional view obtained by the BB section line shown. Figures 7-10 As shown, in one or more embodiments, the sealing ring 14 includes an annular body 141, a snap-fit ​​flange 142, and an abutment flange 143. The annular body 141 has a generally annular cross-section. In the assembled state, the annular body 141 extends through the first central hole 1114. See also... Figure 6 and Figure 10The snap-fit ​​flange 142 surrounds the annular body 141 and is located on the side of the bottom wall 1111 near the atomizing plate 12. Specifically, the snap-fit ​​flange 142 extends radially and vertically outward from the circumferential edge of the annular body 141. A protrusion 1421 extending vertically toward the flange 143 is formed at the end of the snap-fit ​​flange 142. In the assembled state, this protrusion 1421 is inserted into and constrained within the sealing ring mounting groove 1116 of the bottom wall 1111, such that the snap-fit ​​flange 142 and the sealing ring mounting groove 1116 form a snap-fit ​​engagement. See also... Figure 6 and Figure 10 The snap-fit ​​flange 142 also surrounds the annular body 141 and is located on the side of the bottom wall 1111 away from the atomizing plate 12. Specifically, the abutment flange 143 extends radially and vertically outward from the circumferential edge of the annular body 141. The abutment flange 143 is provided so that the atomizing plate unit 10 can abut against other components (such as the liquid cup 20) to form a sealed connection.

[0074] See also Figure 6 and Figure 10 In one or more embodiments, a linear protrusion 1411 extending along its circumferential edge and toward the atomizing plate 12 is formed on the annular body 141. The linear protrusion 1411 reduces the contact area between the annular body 141 and the atomizing plate 12, increasing the contact pressure between them and improving the sealing effect. Furthermore, the linear protrusion 1411 can reduce the negative impact of the compression between the front housing 13 and the rear housing 11 on the vibration of the atomizing plate 12, ensuring the atomization rate. Further, the inner circumferential surface of the linear protrusion 1411 is flush with the inner circumferential surface of the annular body 141, thereby further reducing drug residue.

[0075] See also Figure 2 In one or more embodiments, three limiting ribs 1117 spaced apart from each other circumferentially along the first central hole 1114 are provided on the bottom wall 1111, and in the assembled state, the atomizing plate 12 is constrained between the three limiting ribs 1117. Alternatively, the limiting ribs 1117 may also be provided in four, five or other suitable quantities.

[0076] See also Figure 2In one or more embodiments, the bottom wall 1111 is further provided with dispensing grooves 1118 located on the left and right sides of the first central hole 1114, respectively. Each dispensing groove 1118 has a generally square shape. Alternatively, the dispensing groove 1118 may also be circular or other suitable shapes. The dispensing grooves 1118 provide suitable mounting space for the flexible electrode sheet 123 on the atomizing plate 12. In one or more embodiments, each dispensing groove 1118 is further provided with a generally circular electrode mounting hole 1119. Accordingly, the atomizing plate unit 10 of this utility model also includes an electrode post 16, and in the assembled state, the electrode post 16 is inserted into the corresponding electrode mounting hole 1119 to form an electrical connection with the electrical connector electrode 1232 on the flexible electrode sheet 123, and the electrode post 16 can be electrically connected to an external power source.

[0077] See also Figure 4 In one or more embodiments, an electrode post positioning hole 1120 is further provided on the bottom wall 1111, extending along the circumferential edge of the electrode mounting hole 1119 and toward a direction away from the atomizing plate 12. Based on Figure 2 As shown, the electrode post positioning hole 1120 extends rearward from the bottom wall 1111. The electrode post positioning hole 1120 improves the accuracy and efficiency of the positioning and installation of the electrode post 16.

[0078] See also Figure 2 and Figure 4 In one or more embodiments, the rear housing 11 further includes extensions 112 extending outward from both sides of the rear housing body 111. The extensions 112 and the rear housing body 111 can be integrally molded using a suitable resin material via injection molding. Figure 2 As shown, the extensions 112 are located on the left and right sides of the rear housing body 111. A gripping wall 1123 is provided at the end of each extension 112. The gripping wall 1123 allows the user to easily grasp the entire atomizing plate unit 10, facilitating disassembly, assembly, and cleaning. In one or more embodiments, each gripping wall 1123 has a generally semi-circular shape. In the assembled state, the gripping wall 1123 can be inserted into the corresponding gripping wall 1123 clearance opening of other components (e.g., the medicine cup 20). Alternatively, the gripping wall 1123 can be square or other suitable shapes. In one or more embodiments, each extension 112 has a bending section 1121 that allows it to deform. Specifically, the bending section 1121 has a generally U-shaped shape. Figure 2As shown, the opening of the bent section 1121 faces forward. The bent section 1121 allows the extension section to deform in the left-right direction, facilitating assembly and disassembly. In one or more embodiments, a snap-fit ​​protrusion 1122 is also provided on the bent section 1121. Specifically, snap-fit ​​protrusions 1122 extending vertically upward and vertically downward are respectively provided at the upper and lower ends of each bent section 1121. The snap-fit ​​protrusions 1122 are arranged near the corresponding gripping wall 1123. The snap-fit ​​protrusions 1122 can easily form a snap-fit ​​engagement with structures (such as the third snap-fit ​​rib 215) on other components (such as the liquid cup 20), improving the reliability and efficiency of the atomizing plate unit 10 installation.

[0079] like Figure 2 and Figure 4 As shown, in one or more embodiments, the atomizing plate 12 includes a mesh 121. The mesh 121 has a generally circular shape. A micro-mesh region 1211 is formed in the center of the mesh 121. The micro-mesh region 1211 has a generally circular shape. Preferably, in the assembled state, the mesh 121 and the rear housing 11 are opposite to each other, and the micro-mesh region 1211 has the same centerline as the first central hole 1114 of the rear housing 11. Alternatively, the micro-mesh region 1211 may also be eccentrically disposed with respect to the first central hole 1114, as long as the flow channel is unobstructed. In one or more embodiments, the diameter of the first central hole 1114 is greater than or equal to the diameter of the micro-mesh region 1211 to ensure that a sufficient amount of liquid medicine flows to the micro-mesh region 1211. A micro-mesh 1212 is provided within the micro-mesh region 1211. The mesh 121 may be made of a suitable metal material or polymer material. In one or more embodiments, the micro-mesh 1212 protrudes toward a direction close to the second center. Figure 2 As shown, the micro-mesh 1212 protrudes forward. This protruding structure not only allows the micro-mesh 1212 to resonate at a preset frequency point or within a preset frequency range, making the vibration mode meet the atomization requirements, but also facilitates oscillation and avoids modal abrupt changes due to external influences such as droplets. In one or more embodiments, multiple spaced micropores (not shown in the figure) are formed on the micro-mesh 1212, each micropore having a large end and a small end. In the assembled state, the large end is close to the first central hole 1114 of the rear housing 11, while the small end is close to the second central hole 134 of the front housing 13. In one or more embodiments, the diameter of the micropore gradually decreases from the large end to the small end. That is, the diameter of the micropore gradually decreases from back to front. Alternatively, the diameter of the micropore can also be set in a stepped manner from the large end to the small end. Therefore, when the liquid medicine flows through the micropore, it is squeezed, thereby conveniently forming aerosols of tiny particles.

[0080] See also Figure 2 and Figure 4In one or more embodiments, the atomizing sheet 12 further includes a piezoelectric ceramic sheet 122 surrounding the micromesh region 1211. The piezoelectric ceramic sheet 122 has a generally annular shape. In the assembled state, the piezoelectric ceramic sheet 122 can be snapped between a plurality of limiting ribs 1117 of the rear housing 11, so that the atomizing sheet 12 is easily fixed to the rear housing 11. The piezoelectric ceramic sheet 122 and the mesh 121 can be connected to each other using a suitable adhesive. In one or more embodiments, the piezoelectric ceramic sheet 122 is positioned on the side of the mesh 121 closer to the front housing 13. Based on Figure 2 As shown, the piezoelectric ceramic sheet 122 is positioned in front of the mesh 121. This not only prevents the piezoelectric ceramic sheet 122 from contacting the liquid medication, reducing the risk of short circuits in the electrical connection, but also prevents the adhesive between the piezoelectric ceramic sheet 122 and the mesh 121 from contacting the liquid medication, thus avoiding drug compatibility issues. Furthermore, since the thickness of the piezoelectric ceramic sheet 122 is much greater than the thickness of the mesh 121, if the piezoelectric ceramic sheet 122 is placed on the side of the mesh 121 closer to the rear housing 11 (i.e., placed behind the mesh 121), liquid medication will inevitably remain on the piezoelectric ceramic sheet 122. This would not only waste the liquid medication but also easily contaminate the micromesh 1212, affecting the atomization effect in the next cycle.

[0081] See also Figure 2 and Figure 4 In one or more embodiments, the atomizing sheet 12 further includes a flexible electrode sheet 123. The flexible electrode sheet 123 has connector pads 1231 and electrical connector electrodes 1232 facing each other. The connector pads 1231 are electrically connected to the piezoelectric ceramic sheet 122, while the electrical connector electrodes 1232 are arranged within a dispensing groove 1118. Further, the electrical connector electrodes 1232 are electrically connected to electrode posts 16 within the dispensing groove 1118 to power the piezoelectric ceramic sheet 122. In one or more embodiments, the surface area of ​​the electrical connector electrodes 1232 is larger than the end face contact area of ​​the electrode posts 16 to ensure the reliability of the electrical connection. After the electrical connector electrodes 1232 and electrode posts 16 abut against each other, a suitable fixing adhesive is injected into the dispensing groove 1118, so that the electrical connectors not only form a stable fixed connection with the electrode posts 16 but also avoid corrosion by liquids such as cleaning solutions.

[0082] like Figures 1-6As shown, in one or more embodiments, a generally circular second central hole 131 is provided on the front housing 13. Preferably, in the assembled state, the second central hole 131, the micro-mesh region 1211, and the first central hole 1114 have the same center line. Alternatively, the second central hole 131, the first central hole 1114, and the micro-mesh region 1211 can also be eccentrically arranged, as long as the flow channel can be kept unobstructed. In one or more embodiments, the diameter of the second central hole 131 is greater than or equal to the diameter of the micro-mesh region 1211, so that the aerosol atomized by the micro-mesh region 1211 flows smoothly to the second central hole 131, avoiding the obstruction of the front housing 13 from affecting the smooth flow of the aerosol. A plurality of second water filter holes 132 surrounding the second central hole 131 are also provided on the front housing 13, further improving the efficiency of the atomizing plate unit 10 after cleaning and drying, avoiding the residue of cleaning liquid in the atomizing plate unit 10, and extending the service life. Each second water filter hole 132 has a generally square, rectangular, or circular shape. Preferably, the plurality of second filter holes 132 are all the same shape and size to facilitate processing. Furthermore, the plurality of second filter holes 132 are configured to be evenly spaced circumferentially along the second central hole 131 to further improve the uniformity of drainage and drying. In one or more embodiments, a sealing gasket mounting groove 133 surrounding the second central hole 131 is provided on the front housing 13. This sealing gasket mounting groove 133 is located radially between the plurality of second filter holes 132 and the second central hole 131. Accordingly, the atomizing plate unit 10 of this invention also includes a sealing gasket 15 disposed within the sealing gasket mounting groove 133 to form a sealed connection between the front housing 13 and the atomizing plate 12. The sealing gasket 15 may be made of silicone, rubber, or other suitable flexible materials. In one or more embodiments, the front housing 13 is fixedly connected to the rear housing 11 by welding or bonding. For example, a hot melt adhesive is provided on the circumferential edge of the front housing 13 facing the rear housing 11, and a hot melt contact surface matching the hot melt adhesive is provided in the receiving groove 1113 of the rear housing 11, so that the front housing 13 is welded to the receiving groove 1113 of the rear housing 11 by a suitable hot melt process, thereby encapsulating the atomizing sheet 12 between the front housing 13 and the rear housing 11.

[0083] Figure 11 This is a partial structural schematic diagram of an embodiment of the atomizer of this utility model. (See attached diagram.) Figure 11 As shown, in one or more embodiments, the atomizer 1 of this utility model includes the atomizing plate unit 10 described in any of the above embodiments.

[0084] like Figure 11As shown, in one or more embodiments, the atomizer 1 further includes a liquid cup 20 connected to the atomizing plate unit 10. In one or more embodiments, the liquid cup 20 includes a mounting plate 21, an annular wall 22 extending circumferentially along the mounting plate 21, and a liquid storage chamber 23 disposed on the side of the mounting plate 21 away from the atomizing plate unit 10. An outlet 211 communicating with the liquid storage chamber 23 is provided on the mounting plate 21. In the assembled state, the outlet 211 has the same center line as the first central hole 1114, the micro-mesh region 1211, and the second central hole 131 of the atomizing plate unit 10. In one or more embodiments, electrode through holes 212 are provided on the mounting plate 21, respectively located on the left and right sides of the outlet 211, so that the electrode of the external power supply can form an electrical connection with the corresponding electrode post 16 on the atomizing plate unit 10 through the electrode through holes 212, thereby energizing the piezoelectric ceramic plate 122. In one or more embodiments, four spaced-apart first snap-fit ​​ribs 213 are provided on the side of the mounting plate 21 near the atomizing plate unit 10, surrounding the liquid outlet 211. These four first snap-fit ​​ribs 213 allow the circular portion of the rear housing body 111 to be inserted therein. In one or more embodiments, four second snap-fit ​​ribs 214 are also provided on the side of the mounting plate 21 near the atomizing plate unit 10, respectively located on the upper and lower sides of the corresponding electrode through hole 212. These four second snap-fit ​​ribs 214 allow the portions of the rear housing body 111 located on both sides of the circular portion to be inserted therein. In one or more embodiments, gripping wall 1123 clearance openings are formed on the annular wall 22, respectively located on the left and right sides of the liquid outlet 211. Each gripping wall 1123 clearance opening has a generally semi-circular shape and the opening faces the atomizing plate unit 10, so that in the assembled state, the gripping wall 1123 on the atomizing plate unit 10 can be inserted into the corresponding gripping wall 1123 clearance opening. In one or more embodiments, two third snap-fit ​​ribs 215 are also provided on the annular wall 22, spaced apart from each other along the circumferential edge of the clearance opening of each gripping wall 1123. These two third snap-fit ​​ribs 215 are spaced apart from each other in the vertical direction. In the assembled state, the snap-fit ​​protrusions 1122 on the extension 112 of the rear housing 11 can form a snap-fit ​​engagement with the corresponding third snap-fit ​​ribs 215, so that the entire atomizing plate unit 10 is more stably fixed on the medicine cup 20.

[0085] It should be noted that the atomizer 1 of this utility model may also include, but is not limited to, the main unit, the one-way air inlet valve, the mist tank, the mouthpiece, and the breathing mask (not shown in the figure), etc., which will not be described in detail here.

[0086] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An atomizing plate unit (10), characterized in that, The atomizing plate unit (10) includes: The rear housing (11) has a forward-opening receiving groove (1113) formed on the rear housing (11), and a first central hole (1114) and a plurality of first filter holes (1115) surrounding the first central hole (1114) are provided in the receiving groove (1113). Atomizing plate (12), said atomizing plate (12) is arranged in said receiving groove (1113) and has a micro-mesh area (1211) opposite to the first central hole (1114); and The front housing (13) is fixed in the receiving groove (1113) to constrain the atomizing plate (12) between the front housing (13) and the rear housing (11). The front housing (13) has a second central hole (131) opposite to the micro-mesh area (1211) and a plurality of second filter holes (132) surrounding the second central hole (131).

2. The atomizing plate unit (10) according to claim 1, characterized in that, The diameters of the first central hole (1114) and the second central hole (131) are both greater than or equal to the diameter of the micro-mesh region (1211).

3. The atomizing plate unit (10) according to claim 1, characterized in that, The first central hole (1114), the micro-mesh region (1211), and the second central hole (131) have the same center line.

4. The atomizing plate unit (10) according to any one of claims 1-3, characterized in that, The rear housing (11) includes: The rear housing body (111) has a bottom wall (1111) and a circumferential wall (1112) extending forward along the circumferential edge of the bottom wall (1111), wherein the bottom wall (1111) and the circumferential wall (1112) together form the receiving groove (1113), and the first central hole (1114) is formed on the bottom wall (1111), and a plurality of first filter holes (1115) are formed on the bottom wall (1111) or the circumferential wall (1112).

5. The atomizing plate unit (10) according to claim 4, characterized in that, A sealing ring mounting groove (1116) is provided on the bottom wall (1111) surrounding the first central hole (1114), the sealing ring mounting groove (1116) being radially located between a plurality of first filter holes (1115) and the first central hole (1114); and The atomizing plate unit (10) also includes a sealing ring (14) arranged in the sealing ring mounting groove (1116) to form a sealed connection between the bottom wall (1111) and the atomizing plate (12).

6. The atomizing plate unit (10) according to claim 5, characterized in that, The sealing ring (14) includes: An annular body (141) extends through the first central hole (1114); A snap-fit ​​flange (142) surrounds the annular body (141) and is located on the side of the bottom wall (1111) near the atomizing plate (12), wherein the snap-fit ​​flange (142) snaps into the sealing ring mounting groove (1116); and Abutting flange (143) surrounds the annular body (141) and is located on the side of the bottom wall (1111) away from the atomizing plate (12).

7. The atomizing plate unit (10) according to claim 6, characterized in that, Linear protrusions (1411) are formed on the annular body (141) along its circumferential edge and extending toward the atomizing plate (12).

8. The atomizing plate unit (10) according to claim 7, characterized in that, The inner circumferential surface of the linear protrusion (1411) is flush with the inner circumferential surface of the annular body (141).

9. The atomizing plate unit (10) according to claim 4, characterized in that, A plurality of limiting ribs (1117) are provided on the bottom wall (1111) at intervals along the circumference of the first central hole (1114), and the atomizing plate (12) is constrained between the plurality of limiting ribs (1117).

10. The atomizing plate unit (10) according to claim 4, characterized in that, The bottom wall (1111) is provided with dispensing grooves (1118) located on both sides of the first central hole (1114); and The atomizing plate (12) includes: A mesh (121) is provided with micro-mesh (1212) within the micro-mesh area (1211); A piezoelectric ceramic sheet (122) surrounds the microgrid region (1211); and The flexible electrode sheet (123) has a connector pad (1231) that forms an electrical connection with the piezoelectric ceramic sheet (122) and an electrical connector electrode (1232) arranged in the dispensing groove (1118).

11. The atomizing plate unit (10) according to claim 10, characterized in that, Each of the dispensing grooves (1118) is provided with an electrode mounting hole (1119), and the atomizing plate unit (10) also includes an electrode post (16) that is inserted into the electrode mounting hole (1119) and electrically connected to the electrical connector electrode (1232).

12. The atomizing plate unit (10) according to claim 11, characterized in that, An electrode post positioning hole (1120) is formed on the bottom wall (1111) along the circumferential edge of the electrode mounting hole (1119) and extends in a direction away from the atomizing plate (12).

13. The atomizing plate unit (10) according to claim 10, characterized in that, The micromesh (1212) protrudes toward the direction of the second central hole (131).

14. The atomizing plate unit (10) according to claim 10, characterized in that, Multiple micro-holes spaced apart from each other are formed on the micro-mesh (1212). Each micro-hole is provided with a large end and a small end, wherein the large end is close to the first central hole (1114) and the small end is close to the second central hole (131).

15. The atomizing plate unit (10) according to claim 14, characterized in that, The diameter of the micropore gradually decreases from the macropore end to the micropore end.

16. The atomizing plate unit (10) according to claim 10, characterized in that, The piezoelectric ceramic sheet (122) is positioned on the side of the mesh (121) near the front housing (13).

17. The atomizing plate unit (10) according to claim 4, characterized in that, The rear housing (11) further includes extensions (112) extending outward from both sides of the rear housing body (111), and a gripping wall (1123) is provided at the end of each extension (112).

18. The atomizing plate unit (10) according to claim 17, characterized in that, Each of the extensions (112) is provided with a bending section (1121) that allows it to deform.

19. The atomizing plate unit (10) according to claim 18, characterized in that, The bent section (1121) is also provided with a snap-fit ​​protrusion (1122) for fixing the atomizing plate unit (10) to the external component.

20. The atomizing plate unit (10) according to claim 1, characterized in that, A gasket mounting groove (133) is provided on the front housing (13) surrounding the second central hole (131), the gasket mounting groove (133) being radially located between a plurality of second filter holes (132) and the second central hole (131); and The atomizing plate unit (10) further includes a sealing gasket (15) disposed in the sealing gasket mounting groove (133) to form a sealed connection between the front housing (13) and the atomizing plate (12).

21. The atomizing plate unit (10) according to claim 1, characterized in that, The front housing (13) is fixedly connected to the rear housing (11) by welding or bonding.

22. An atomizer (1), characterized in that, The atomizer (1) includes an atomizing plate unit (10) according to any one of claims 1-21.

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