Handheld nebulizer and nebulization module used

Abstract

Handheld nebulizer, characterized in that it includes the following: a control handle; and a misting assembly, wherein the misting assembly is detachably connected to the control handle, the misting assembly comprising the following: a medicine cup, wherein the medicine cup forms a detachable connection with the control handle and is electrically connected; a mouthpiece, wherein the mouthpiece forms a detachable connection with the outer wall of the medicine cup; and a nebulization module, wherein the nebulization module is detachably clamped between the medicine cup and the mouthpiece, and wherein the nebulization module is simultaneously electrically connected to the medicine cup.

Description

TECHNICAL AREA

[0001] The present application relates to the field of nebulization technology, in particular to a hand-held nebulizer and a nebulization module used therein. BACKGROUND TECHNOLOGY

[0002] A nebulizer, a medical device for home use, is widely employed for the treatment of respiratory illnesses. The nebulizer plate, its core component, is in constant contact with the medication fluid, which can easily lead to the formation of limescale deposits or drug crystals. This can clog the mouthpiece channel in which the nebulizer plate sits, significantly reducing nebulization efficiency. Therefore, replacing the nebulizer plate becomes necessary.

[0003] Most existing nebulizer plates are attached directly to a mouthpiece by soldering connectors. Furthermore, the nebulizer plate is encased in waterproof silicone for sealing purposes, meaning it generally cannot be removed and replaced.

[0004] Furthermore, in some cases, the existing nebulizer mouthpiece is connected to the nebulizer body by means of a screw connection. If the nebulizer plate becomes clogged, the user must disassemble and replace the mouthpiece using a special tool. The procedure is complicated, time-consuming, and difficult, and often the user is forced to send the device in for repair or replace the entire unit, further complicating user maintenance. At the same time, screws tend to rust with prolonged use, which in turn can lead to components seizing, impairing the normal use of the device, and creating safety hazards. Additionally, the manufacturing process involves screwing and soldering connections, which makes the work cumbersome and reduces efficiency.In other cases, the mouthpiece of the nebulizer is formed as a single piece with the nebulizing body, making maintenance even more impossible for the user.

[0005] To this end, it is necessary to propose a handheld nebulizer and a nebulization module used with it, in order to allow for convenient replacement of the inner nebulization plate and thus facilitate its disassembly and maintenance. CONTENT OF THE REGISTRATION

[0006] To solve at least one of the aforementioned problems, the present application proposes a handheld nebulizer and a nebulization module used therein to enable convenient replacement of the nebulization plate inside the handheld nebulizer, thus facilitating the disassembly and maintenance of the nebulization plate.

[0007] This is achieved through the present application using the following technical solutions: In a first aspect, one embodiment of the present application provides a handheld nebulizer comprising: a control handle; and a misting assembly, wherein the misting assembly is detachably connected to one end of the control handle, the misting assembly comprising the following: a medicine cup, wherein the medicine cup forms a detachable connection with the control handle and is electrically connected; a mouthpiece, wherein the mouthpiece forms a detachable connection with the outer wall of the medicine cup; and a nebulization module, wherein the nebulization module is detachably clamped between the medicine cup and the mouthpiece, and wherein the nebulization module is simultaneously electrically connected to the medicine cup.

[0008] In one embodiment, a connecting cylinder is provided on the outer wall of the medicine cup, wherein the nebulization module is received in the connecting cylinder and wherein the mouthpiece forms a snap connection with the connecting cylinder and rests against the nebulization module.

[0009] In one embodiment, a mounting slot is provided in the connecting cylinder, wherein the mouthpiece comprises a mouthpiece cap, wherein the nebulizing module and the mouthpiece cap are both received in the mounting slot, and wherein the outer wall of the mouthpiece cap forms a snap connection with the inner wall of the mounting slot.

[0010] In one embodiment, at least two locking projections are provided on the inner wall of the mounting slot, wherein at least two L-shaped slots are provided on the outer wall of the mouthpiece cap, wherein the at least two L-shaped slots correspond to the at least two locking projections, and wherein the locking projections are engaged in the L-shaped slots.

[0011] In one embodiment, a first positive and negative conductive pin is provided on the bottom wall of the connecting cylinder, wherein the nebulization module contacts the first positive and negative conductive pin to form an electrical connection.

[0012] In one embodiment, a liquid drainage groove is provided inside the medicine cup, the nebulization module comprising the following: a misting plate, wherein the misting plate comprises the following: a nebulizer; and a flexible printed circuit board attached to one side of the nebulizer body, wherein the flexible printed circuit board is electrically connected to the nebulizer body and electrically connected to the first positive and negative conductive pins; and a silicone sealing housing, wherein the silicone sealing housing is fitted over the atomizing plate and surrounds the flexible printed circuit board to provide watertight protection for the flexible printed circuit board, wherein the silicone sealing housing comprises the following: a first wall, wherein a mist discharge groove is opened in the first wall to discharge the generated nebulized medicinal fluid when the nebulizer plate performs nebulization; and a second wall opposite the first wall, wherein a liquid inlet groove is open in the second wall so that the medicinal liquid to be nebulized can flow into the nebulization plate; and a protective housing, wherein the protective housing is fitted over the silicone sealing housing, the protective housing comprising the following: a third wall adjoining the first wall, with a fogging channel open in the third wall, communicating with the fog discharge groove; and a fourth wall opposite the third wall and adjacent to the second wall, wherein a through-slot is opened in the fourth wall, the liquid inlet groove passing through the through-slot to communicate with the liquid outlet groove.

[0013] In one embodiment, a connecting piece is provided on the second wall, wherein the liquid inlet groove passes through the connecting piece, the connecting piece protruding from the protective housing through the through-slot to rest against the medicine cup and allow the liquid inlet groove to communicate with the liquid outlet groove; and / or a projection is provided on the third wall, wherein the projection is inserted into the mouthpiece, and wherein the nebulization channel passes through the projection.

[0014] In one embodiment, a level sensor is provided in the liquid drainage groove, wherein the level sensor is electrically connected to the control handle.

[0015] In one embodiment, a conductive contact point is provided on the medicine cup, wherein a second positive and negative conductive pin is provided on the control handle corresponding to the conductive contact point, wherein the second positive and negative conductive pin contacts the conductive contact point in order to be electrically connected.

[0016] In one embodiment, the control handle comprises a handle housing, a main control board, a display, and a battery, wherein the main control board, the display, and the battery are all rigidly connected inside the handle housing, with one side of the display being flush with the outer surface of the handle housing, and wherein the main control board is electrically connected to the display, the battery, and the nebulizer assembly, respectively.

[0017] In another aspect, an embodiment of the present application further provides a nebulization module, wherein the nebulization module is used in the above-mentioned handheld nebulizer, the nebulization module comprising the following: a misting plate, wherein the misting plate comprises the following: a nebulizer; and a flexible printed circuit board attached to one side of the nebulizer body, wherein the flexible printed circuit board is electrically connected to the nebulizer plate; a silicone sealing housing, wherein the silicone sealing housing is fitted over the atomizing plate and surrounds the flexible printed circuit board to provide watertight protection for the flexible printed circuit board, wherein the silicone sealing housing comprises the following: a first wall, wherein a mist discharge groove is opened in the first wall to discharge the generated nebulized medicinal fluid when the nebulizer plate performs nebulization; and a second wall opposite the first wall, wherein a liquid inlet groove is open in the second wall so that the medicinal liquid to be nebulized can flow into the nebulization plate; and a protective housing, wherein the protective housing is fitted over the silicone sealing housing, the protective housing comprising the following: a third wall adjoining the first wall, with a fogging channel open in the third wall, communicating with the fog discharge groove; and a fourth wall opposite the third wall and adjacent to the second wall, wherein a through-slot is opened in the fourth wall, the liquid inlet groove passing through the through-slot to communicate with the liquid outlet groove of the medicine cup.

[0018] In one embodiment, a connecting nozzle is provided on the second wall, wherein the liquid inlet groove passes through the connecting nozzle, and the connecting nozzle protrudes from the protective housing through the through-slot.

[0019] In one embodiment, a projection is provided on the third wall, with the misting channel passing through the projection.

[0020] In one embodiment, positive and negative electrical contact points are provided on the flexible circuit board, wherein a first escape hole is provided on the silicone sealing housing corresponding to the positive and negative electrical contact points, and wherein a second escape hole is provided on the protective housing corresponding to the positive and negative electrical contact points.

[0021] In one embodiment, the silicone sealing housing comprises: a first sealing housing, wherein the first sealing housing comprises a receiving slot, the atomizing plate being received in the receiving slot; and a second sealing housing, wherein the second sealing housing forms a snap connection with the first sealing housing and extends into the receiving slot to clamp the atomizing plate.

[0022] In one embodiment, the first sealing housing comprises the second wall, wherein the second sealing housing comprises the first wall.

[0023] In one embodiment, the protective housing comprises: a first protective housing, wherein a mounting slot is provided inside the first protective housing, the silicone sealing housing being embedded in the mounting slot; and a second protective housing, wherein the second protective housing is snap-fitted to the first protective housing and clamps the silicone sealing housing.

[0024] In one embodiment, the first protective housing comprises the fourth wall, wherein the second protective housing comprises the third wall.

[0025] The handheld nebulizer and nebulization module provided by an embodiment of the present application have one or more of the following advantageous effects: The handheld nebulizer provided by an embodiment of the present application uses a detachably connected control handle and nebulizer assembly, which facilitates disassembly and replacement of the nebulizer assembly. Furthermore, when replacing the nebulizer module within the nebulizer assembly, the mouthpiece can first be removed, and then the nebulizer module can be taken out of the medicine cup. After replacement, the nebulizer module is then placed back into the medicine cup and secured with the mouthpiece, thus completing the nebulizer module replacement process quickly and conveniently.

[0026] The nebulization module provided by one embodiment of the present application uses the protective housing to cover the silicone sealing housing, and the silicone sealing housing to seal and provide watertight protection for the nebulization plate. This creates an independent, watertight, and protective structure for the nebulization plate, allowing for easy assembly and disassembly of the entire module. During assembly, the protective housing is aligned directly with and inserted into the mounting slot of the medicine cup. After insertion, the nebulization plate is also electrically connected to the nebulizer's control handle. At this point, assembly can be quickly and conveniently completed by closing the mouthpiece.

[0027] In summary, the handheld nebulizer provided by one embodiment of the present application allows for convenient replacement of the inner nebulizing plate to facilitate disassembly and maintenance. The nebulization module provided by one embodiment of the present application can integrate the nebulizing plate into a single structure to further simplify replacement of the nebulizing plate within the nebulizer. ILLUSTRATION OF THE ATTACHED FIGURES Fig. Figure 1 is an exploded view of the hand nebulizer according to an embodiment of the present application. Fig. 2 is another exploded view of the in Fig. 1 handheld nebulizer shown. Fig. 3 is a local enlarged view of section A of the in Fig. 2 handheld nebulizers shown. Fig. 4 is an exploded view of the control handle of the in Fig. 1 handheld nebulizer shown. Fig. 5 is a sectional view of the in Fig. 1. Hand nebulizer shown after assembly. Fig. Figure 6 is a schematic perspective view of the fogging assembly and the face mask of the [unclear text]. Fig. 1 handheld nebulizer shown. Fig. 7 is an exploded view of the in Fig. 6 fogging assembly shown. Fig. 8 is a sectional view of the Fig. 7 shown fogging assembly after assembly. Fig. 9 is a schematic perspective view of the mouthpiece of the in Fig. 1 handheld nebulizer shown. Fig. Figure 10 is an exploded view of the nebulization module of the [unclear text]. Fig. 6 fogging assembly shown. Fig. 11 is an exploded view of the in Fig. 10 fogging modules shown from a different perspective. Fig. 12 is a block diagram of the internal components of the in Fig. 1 handheld nebulizer shown.

[0028] The reference symbols are as follows: Handheld nebulizer 1000; Control handle 1, second positive and negative conductive pin 11, handle housing 12, outer surface 120, first housing cover 121, connection opening 1211, second housing cover 122, sealing element 1221, start button 1222, base housing 123, screw hole 1231, main control board 13, display 14, battery 15, slide rail 101, conductive contact point 102; Misting assembly 2; Medical cup 21, outer wall 210, connecting cylinder 211, mounting slot 2111, locking projection 21111, first positive and negative conductive pin 2112, stop sliding groove 2113, liquid drain groove 212, level sensor 2121, conductive contact point 213, clamping slot 214, sealing cap 215, liquid reservoir 216; Mouthpiece 23, outer wall 230, L-shaped slot 231, mouth section 233, mouthpiece cap 235; Nebulization module 22; Protective housing 221, through slot 2211, nebulization channel 2212, second escape hole 2213, first protective housing 22101, mounting slot 221011, locking slot 221012, stop projection 221013, second protective housing 22102, locking latch 221021, third wall 221a, fourth wall 221b, projection 221c, Silicone sealing housing 222, first wall 222a, second wall 222b, connecting piece 2221, liquid inlet groove 22211, mist outlet groove 2222, first escape hole 2223, first sealing housing 22201, receiving slot 222011, second sealing housing 22202, Nebulizing plate 223, nebulizing body 2230, flexible circuit board 2231, positive and negative electrical contact points 22311; Face mask 3. SPECIFIC EXECUTION FORM

[0029] In order to explain the technical solution of the present application more clearly and completely, the present application is further described below with reference to the attached drawings.

[0030] With reference to the Fig. 1 and Fig. 2. The present application provides a handheld nebulizer 1000, which facilitates the replacement of the nebulization module and comprises a control handle 1 and a nebulization assembly 2. The control handle 1 supplies power to the nebulization assembly 2. The nebulization assembly 2 is detachably connected to one end of the control handle 1. The nebulization assembly 2 comprises a medicine cup 21, a nebulization module 22, and a mouthpiece 23. One end of the medicine cup 21 is detachably connected to one end of the control handle 1 and is electrically connected. The medicine cup 21 serves to store the medicine fluid and simultaneously supplies the medicine fluid to the nebulization module 22. The nebulization module 22 is permanently connected to one side of the medicine cup 21 by means of the mouthpiece 23. The mouthpiece 23 forms a detachable connection to one side of the medicine cup 21 and communicates with the nebulization module 22.The mouthpiece 23 can be connected to an external face mask 3 to facilitate use by the user. The nebulizer module 22 is electrically connected to the medicine cup 21. During use, the medical fluid supplied to the medicine cup 21 is nebulized by the nebulizer module 22 and then exits the mouthpiece 23.

[0031] In this embodiment, the control handle 1 is detachably or quickly interchangeably combined with the nebulizer assembly 2, which facilitates disassembly and replacement of the nebulizer assembly 2. Furthermore, when replacing the nebulizer module 22 within the nebulizer assembly 2, the mouthpiece 23 can first be detached from the medicine cup 21. Then, the nebulizer module 22 can be removed from the medicine cup 21. After replacement, the nebulizer module 22 is placed back into the medicine cup 21. The nebulizer module 22 is then secured using the mouthpiece 23. The secured nebulizer module 22 is electrically connected to the control handle 1 via the medicine cup 21. At this point, the replacement process of the nebulizer module 22 is completed quickly and conveniently.

[0032] In summary, the 1000 handheld nebulizer, which facilitates the replacement of the nebulization module, allows for convenient replacement of the internal nebulization plate to simplify disassembly and maintenance.

[0033] With reference to the Fig. 3, Fig. 7 and Fig. In this embodiment, a connecting cylinder 211 is provided on the outer wall 210 of the medicine cup 21. The nebulizer module 22 is housed in the connecting cylinder 211. The mouthpiece 23 forms a snap-fit ​​connection with the connecting cylinder 211 and rests against the nebulizer module 22. The connecting cylinder 211 protrudes outwards to facilitate quick positioning and assembly of the nebulizer module 22 and the mouthpiece 23. When replacing the nebulizer module 22, the mouthpiece 23 is directly detached from the connecting cylinder 211. The nebulizer module 22 is then removed and, after replacement, reinserted into the connecting cylinder 211. Finally, the mouthpiece 23 is reattached to the connecting cylinder 211, thus completing the replacement of the nebulizer module 22 and securing it in place.A sealing cap 215 is rotatably mounted on the upper section of the medicine cup 21, which serves to seal the upper section of the medicine cup 21 so that the user can open the sealing cap and pour the medical fluid into the medicine cup 21.

[0034] In this embodiment, a mounting slot 2111 is provided inside the connecting cylinder 211. The nebulizer module 22 and the nozzle 23 are both received in the mounting slot 2111. The outer wall 230 of the nozzle 23 forms a snap-fit ​​connection with the inner wall of the mounting slot 2111. The arrangement of the mounting slot 2111 facilitates the provision of a stop channel for mounting the nebulizer module 22 and the nozzle 23, which contributes to increased assembly efficiency.

[0035] In this embodiment, at least two locking projections 21111 are provided on the inner wall of the mounting slot 2111. At least two L-shaped slots 231 are provided on the outer wall 230 of the mouthpiece 23. Specifically, in this embodiment, the mouthpiece 23 comprises a mouth section 233 located at the front and a mouthpiece cap 235 located at the rear, near the nebulization module 22. The at least two L-shaped slots 231 are provided on the outer wall of the mouthpiece cap 235. The at least two L-shaped slots 231 correspond to the at least two locking projections 21111. The locking projection 21111 is received in the L-shaped slot 231. During assembly of the mouthpiece 23, the mouthpiece cap 235 of the mouthpiece 23 is inserted into the mounting slot 2111.The opening 2311 of the L-shaped slot 231 is then aligned with and inserted into the locking projection 21111, so that the locking projection 21111 slides along the L-shaped slot 231. The mouthpiece 23 is then rotated forward so that the locking projection 21111 slides along the direction of the L-shaped slot 231 to the end of the L-shaped slot 231. At this point, the locking connection of the mouthpiece 23 with the connecting cylinder 211 is complete.

[0036] In this embodiment, a first positive and negative conductive pin 2112 is provided on the bottom wall of the connecting cylinder 211. One side of the nebulizing module 22 is electrically connected to the first positive and negative conductive pin 2112. The first positive and negative conductive pin 2112 is divided into two conductive pins, one being a positive conductive pin and the other a negative conductive pin. The two conductive pins each contact one side of the nebulizing module 22, thereby forming an electrical contact connection.Since the nebulization module 22 must be supplied with power to nebulize the medical fluid, the nebulization module 22 forms an electrical connection with the first positive and negative conductive pin 2112 after the nebulization module 22 is inserted into the mounting slot 2111 and the mouthpiece 23 is attached, thus ensuring the normal functioning of the nebulization module 22.

[0037] With reference to the Fig. 7, Fig. 10 and Fig. In this embodiment, the nebulization module 22 comprises a protective housing 221, a silicone sealing housing 222, a nebulization plate 223, and a flexible printed circuit board 2231. The nebulization plate 223 is firmly enclosed in the silicone sealing housing 222. The silicone sealing housing 222 is firmly enclosed in the protective housing 221. One side of the silicone sealing housing 222 is tightly connected to and communicates with the medicine cup 21. The nebulization plate 223 comprises a nebulization body 2230 and a flexible printed circuit board 2231, which is located on one side of the nebulization body 2230. The flexible printed circuit board 2231 is electrically connected to the nebulization body 2230. The flexible circuit board 2231 forms an electrical contact connection with the first positive and negative conductive pin 2112. The protective housing 221 is divided into a positive housing and a negative housing.The positive and negative housings jointly clamp the silicone sealing housing 222 securely. The silicone sealing housing 222 comprises a positive and a negative socket. These positive and negative sockets jointly clamp the atomizing plate 223 securely, thereby improving the water resistance of the flexible printed circuit board 2231 to prevent the ingress of water mist into the board. The protective housing 221, the silicone sealing housing 222, and the atomizing plate 223 form an integrated structure for easy replacement. Positive and negative electrical contact points 22311 are provided on the side wall of the flexible printed circuit board 2231.When the nebulizer module 22 is inserted into the mounting slot 2111, the positive and negative electrical contact points 22311 make contact with the first positive and negative conductive pins 2112, thus forming an electrical connection and supplying power to the flexible circuit board 2231 and the nebulizer body 2230. No soldering is required for assembly, increasing ease of assembly while simultaneously reducing contact resistance and improving electrical reliability. During nebulization, the control handle 1 sends a nebulization command to the flexible circuit board 2231. The flexible circuit board 2231 then controls the current output to the nebulizer body 2230. The nebulizer body 2230 nebulizes the medical fluid that has entered the medicine cup 21 by means of high-frequency vibration.

[0038] With reference to the Fig. 5 and Fig. In this embodiment, a liquid drain groove 212 is provided on one side of the medicine cup 21. A liquid inlet groove 22211 is provided on one side of the silicone sealing housing 222. The liquid inlet groove 22211 is aligned with the nebulizing plate 223. The liquid drain groove 212 communicates with the liquid inlet groove 22211. The medical fluid is placed in the medicine cup 21, enters the liquid inlet groove 22211 through the liquid drain groove 212, and thus contacts the nebulizing plate 223. The medical fluid is nebulized by the high-frequency vibration of the nebulizing plate 223.

[0039] In this embodiment, a level sensor 2121 is provided in the liquid drain groove 212. The level sensor 2121 is electrically connected to the control handle 1. A conductive contact point 102 is provided on the control handle 1. The conductive contact point 102 is electrically connected to the main control board 13 inside the control handle 1. The level sensor 2121 contacts the conductive contact point 102 and forms an electrical connection. The level sensor 2121 serves to detect whether medical fluid is present in the liquid drain groove 212. If medical fluid is present in the liquid drain groove 212, the level sensor 2121 transmits a signal representing "medicinal fluid present" to the main control board 13 inside the control handle 1.If no medication fluid is present in the liquid drain groove 212, indicating that no medication fluid is present in the medication cup 21, the level sensor 2121 transmits a signal representing "no medication fluid present" to the main control board 13 inside the control handle 1. Therefore, if the medication fluid is to be nebulized, the user can press the start button 1222 on the control handle 1 to send a nebulization instruction to the main control board 13. Simultaneously, if the main control board 13 receives the signal sent by the level sensor 2121 representing "medication fluid present," the main control board 13 outputs a control signal to the flexible circuit board 2231 to control the flexible circuit board 2231 to supply current to the nebulization plate 223. The nebulizer plate 223 starts and nebulizes the medical fluid entering the nebulizer plate 223.When the main control board 13 receives the signal sent by the level sensor 2121, which represents "no medical fluid present", the main control board 13 does not output a control signal to the flexible circuit board 2231 at that time, even if the user presses the start button 1222 of the control handle 1. The nebulizer plate 223 does not start operation, thus preventing the nebulizer plate 223 from operating without medical fluid.

[0040] With reference to the Fig. In this embodiment, a conductive contact point 213 is provided at one end of the medicine cup 21. The conductive contact point 213 is electrically connected to the first positive and negative conductive pin 2112. A second positive and negative conductive pin 11 is provided at one end of the control handle 1. The second positive and negative conductive pin 11 is electrically connected to the conductive contact point 213. The second positive and negative conductive pin 11 comprises two conductive pins, one being a positive conductive pin and the other a negative conductive pin. The two conductive pins each contact the two conductive contact points on the conductive contact point 213, thereby forming an electrical contact connection. A clamping slot 214 is provided at one end of the medicine cup 21. A slide rail 101 is provided at one end of the control handle 1.The slide rail 101 is inserted into the clamping slot 214. The second positive and negative conductive pin 11 is located on one side of the slide rail 101. When the medicine cup 21 needs to be assembled on the control handle 1, the slide rail 101 is inserted laterally into the clamping slot 214 by aligning the slide rail 101 and is then secured there. After the medicine cup 21 is secured, the second positive and negative conductive pin 11 forms an electrical contact with the conductive contact point 213.

[0041] With reference to the Fig. 4 and Fig. In this embodiment, the control handle 1 comprises a handle housing 12, a main control board 13, a display 14, and a battery 15. The main control board 13 and the battery 15 are fixedly mounted inside the handle housing 12. The display 14 is mounted in the opening of the handle housing 12 and is exposed through the opening. One side of the display 14 is flush with the outer wall 120 of the handle housing 12. The main control board 13 is electrically connected to the display 14, the battery 15, the nebulizer assembly 2, the level sensor 2121, and the second positive and negative conductive pin 11. The battery 15 is a rechargeable battery, for example, a rechargeable lithium battery, which can be connected to and recharged from an external power source via the main control board 13.The display 14, when in use under the control of the main control board 13, can show information such as the charge level of the battery 15, the operating stage of the nebulizer assembly 2, or the presence of medical fluid in the liquid drain groove 212. The handle housing 12 comprises a first housing cover 121, a second housing cover 122, and a base housing 123. The first housing cover 121 and the second housing cover 122 are arranged symmetrically. The main control board 13, the display 14, and the battery 15 are all rigidly mounted between the first housing cover 121 and the second housing cover 122. One side of the display 14 is flush with one side of the second housing cover 122. The base housing 123 is rigidly connected to the bottom section of the first housing cover 121 and the second housing cover 122. Several connection openings 1211 are located on the surface of the first housing cover 121.A sealing element 1221 is provided at the edge of the second housing cover 122. The sealing element 1221 is positioned corresponding to the connecting opening 1211 and closes the connecting opening 1211. A screw hole 1231 is open on the surface of the base housing 123. Screw pillars are provided on the inner walls of the first housing cover 121 and the second housing cover 122. The base housing 123, the first housing cover 121, and the second housing cover 122 are fastened together by the interaction of the screw hole 1231 with the screw pillars. In other embodiments, the base housing 123 can be firmly connected to the first housing cover 121 and the second housing cover 122 in a different way, for example, by a snap-fit ​​connection.In this embodiment, the connection between the first housing cover 121 and the second housing cover 122 can be positioned by the arrangement of the connecting opening 1211 and the sealing element 1221. Simultaneously, the joint can be sealed. The sealing element 1221 can also improve the user's grip and increase grip friction when the user holds the handle housing 12. The connection between the first housing cover 121, the second housing cover 122, and the base housing 123 can be fastened by the arrangement of the screw hole 1231 and the screw posts. A start button 1222 is provided on the second housing cover 122. The start button 1222 is electrically connected to the main control board 13. The start button 1222 is located on one side of the display 14. The start button 1222 is used to switch the nebulizer assembly 2 on and off.A charging port is provided on the back of the first housing cover 121. The charging port is electrically connected to the main control board 13. After the charging cable has been inserted into the charging port, the battery 15 can be charged.

[0042] With reference to the Fig. 1, Fig. 2 to Fig. 3, Fig. 5 as well Fig. 8 to Fig.Figure 11 of the embodiment of the present application also provides a nebulization module 22 for easy replacement. The nebulization module 22 comprises a protective housing 221, a silicone sealing housing 222, and a nebulization plate 223. The silicone sealing housing 222 is annular and has two opposing walls: the first wall 222a and the second wall 222b. A nebulization outlet groove 2222 is open on the first wall 222a. A liquid inlet groove 22211 is open on the second wall 222b. The nebulization outlet groove 2222 and the liquid inlet groove 22211 are aligned with each other. The silicone sealing housing 222 encloses the edge region of the nebulization plate 223. The protective housing 221 encloses the silicone sealing housing 222. The protective housing 221 has two opposing walls: the third wall 221a and the fourth wall 221b. The third wall 221a borders the first wall 222a. A fogging duct 2212 is open at the third wall 221a.The fourth wall 221b adjoins the second wall 222b. A through-slot 2211 is open in the fourth wall 221b. The atomizing channel 2212 is aligned with the atomizing outlet groove 2222, and the through-slot 2211 is aligned with the liquid inlet groove 22211. A connecting piece 2221 is provided on the second wall 222b of the silicone sealing housing 222. The connecting piece 2221 protrudes from the protective housing 221 through the through-slot 2211.

[0043] In this embodiment, the silicone sealing housing 222 also serves as the silicone waterproof housing. The nebulizer plate 223 is mounted inside the silicone sealing housing 222. The silicone sealing housing 222 provides waterproof protection for the nebulizer plate 223. The protective housing 221 is then used to protect the silicone sealing housing 222, so that the nebulizer plate 223 forms an independent structure for waterproofing and protection, which facilitates assembly and disassembly. During assembly of the nebulizer plate 223, the protective housing 221 is aligned directly with and inserted into the mounting slot 2111 of the connecting cylinder 211 of the medicine cup 21. After insertion, the nebulizer plate 223 is electrically connected to the main control board 13 inside the control handle 1.At this point, the assembly can be completed by closing the nebulization module with the mouthpiece cap 235 of the mouthpiece 23, which is convenient and quick.

[0044] In summary, the easily replaceable nebulization module 22 provided in the embodiment of the present application can combine the nebulization plate 223 and the sealing housing or protective housing arranged outside the nebulization plate 223 into an integrated structure in order to facilitate the replacement of the nebulization plate 223 in the hand nebulizer 1000.

[0045] In this embodiment, a connecting piece 2221 is provided on the second wall 222b of the silicone sealing housing 222. The connecting piece 2221 protrudes from the protective housing 221 through the through-slot 2211. When the nebulizer module 22 is installed in the handheld nebulizer 1000, the connecting piece 2221 connects and communicates with the liquid drain groove 212 on the medicine cup 21. The liquid drain groove 212 communicates with the liquid reservoir 216. During nebulization, the medicine fluid flows from the liquid drain groove 212 into the connecting piece 2221 and from there to the nebulizer plate 223 for nebulization.

[0046] In this embodiment, a through-slot 2211 is provided in the fourth wall 221b of the protective housing 221. The connecting piece 2221 passes through the through-slot 2211. The through-slot 2211 serves to deflect the connecting piece 2221 and simultaneously allows the rear end of the connecting piece 2221 to be supported by the rigid structure, namely the protective housing. This facilitates the connecting piece 2221 coming into contact with the medical cup 21 and smoothly connecting the liquid inlet groove 22211 and the liquid outlet groove 212.

[0047] In this embodiment, the liquid inlet groove 22211 extends through the connecting nozzle 2221. The liquid inlet groove 22211 borders the nebulizing plate 223. The liquid inlet groove 22211 serves to provide a flow channel for the medical fluid towards the nebulizing plate 223, so that the medical fluid can flow smoothly into the nebulizing plate 223 for nebulization.

[0048] In this embodiment, a mist drain groove 2222 is provided on the first wall 222a of the silicone sealing housing 222. The mist drain groove 2222 borders the nebulizing plate 223. When the nebulizing plate 223 is supplied with current for nebulization, the nebulized medical fluid flows outwards from the mist drain groove 2222.

[0049] In this embodiment, a nebulization channel 2212 is provided on the third wall 221a of the protective housing 221. The nebulization channel 2212 communicates with the nebulization outlet groove 2222. The nebulization channel 2212 can provide a flow channel for the nebulized medical fluid to drain outwards. Specifically, in this embodiment, a projection 221c is provided on the third wall 221a. The nebulization channel 2212 expands and passes through the projection 221c. The projection 221c can be inserted into the mouthpiece 23 and connected to it. The mouthpiece 23 is then connected to the face mask 3. Since the nebulization channel 2212 extends outwards to the mouthpiece 23 and even passes through the mouthpiece 23, it is avoided that water droplets remain in the gaps of the mouthpiece 23 and in the gaps between the nebulization plate 223 and the silicone sealing housing 222 during the nebulization process.

[0050] In this embodiment, a flexible printed circuit board 2231 is provided on one side of the nebulizer body 2230. The flexible printed circuit board 2231 is electrically connected to the nebulizer body 2230. The flexible printed circuit board 2231 is located in the silicone sealing housing 222. After the nebulizer module 22 is inserted into the mounting slot 2111, the flexible printed circuit board 2231 contacts the first positive and negative conductive pins 2112 in the mounting slot 2111, thereby forming an electrical connection with the main control board 13 in the control handle 1. During nebulization, the main control board 13 supplies current to the flexible printed circuit board 2231. The flexible printed circuit board 2231 then provides current to the nebulizer body 2230 for actuation. The nebulizer body 2230 nebulizes the liquid by means of high-frequency vibration.

[0051] In this embodiment, positive and negative electrical contact points 22311 are provided on the flexible circuit board 2231. A first escape hole 2223 is provided on one side of the silicone sealing housing 222. The positive and negative electrical contact points 22311 are aligned with the first escape hole 2223. A second escape hole 2213 is provided on one side of the protective housing 221. The first escape hole 2223 is aligned with the second escape hole 2213. After the nebulizer module 22 is inserted into the mounting slot 2111, the first positive and negative conductive pin 2112 successively pass through the second escape hole 2213 and the first escape hole 2223, and then contact the positive and negative electrical contact points 22311. The positive and negative electrical contact points 22311 are divided into a positive electrical contact point and a negative electrical contact point.The first positive and negative conductive pin 2112 is also divided into a positive conductive pin and a negative conductive pin. Upon contact, the positive conductive pin forms an electrical contact connection with the positive electrical contact point, and the negative conductive pin forms an electrical contact connection with the negative electrical contact point, thereby forming an electrical circuit between the nebulizer board 223 and the main control board 13.

[0052] In this embodiment, the silicone sealing housing 222 comprises a first sealing housing 22201 and a second sealing housing 22202, i.e., the first waterproof casing and the second waterproof casing. A receiving slot 222011 is provided in the first sealing housing 22201. The nebulizer body 2230 is received in the receiving slot 222011. The second sealing housing 22202 is firmly connected to the first sealing housing 22201 and extends into the receiving slot 222011. The second sealing housing 22202 clamps the nebulizer body 2230 securely. To facilitate the assembly of the nebulizer plate 223, the silicone sealing housing 222 is divided into two parts, namely the first sealing housing 22201 and the second sealing housing 22202.During assembly of the atomizing plate 223, the atomizing plate 223 is first inserted into the receiving slot 222011, and then the second sealing housing 22202 is closed onto the first sealing housing 22201, and the atomizing body 2230 is clamped in place. The first sealing housing 22201 and the second sealing housing 22202 are snapped into place. At this point, the first sealing housing 22201 and the second sealing housing 22202 seal the flexible circuit board 2231 of the atomizing plate 223, isolating it from the atomizing area of ​​the atomizing body 2230, so that no water mist drips down onto the flexible circuit board 2231 during atomization and a short circuit is effectively prevented. The connecting piece 2221 and the liquid inlet groove 22211 are both provided on the first sealing housing 22201. The mist outlet groove 2222 is provided on the second sealing housing 22202.

[0053] In this embodiment, the protective housing 221 comprises a first protective housing 22101 and a second protective housing 22102. A mounting slot 221011 is provided in the first protective housing 22101. The silicone sealing housing 222 is embedded in the mounting slot 221011. The second protective housing 22102 is firmly connected to the first protective housing 22101 and clamps the silicone sealing housing 222 securely. To facilitate the assembly of the silicone sealing housing 222, which is encased by the atomizing plate 223, the protective housing 221 is divided into two parts: the first protective housing 22101 and the second protective housing 22102. When encased, the silicone sealing housing 222 is embedded in the mounting slot 221011. The second protective housing 22102 is then closed onto the first protective housing 22101, so that the silicone sealing housing 222, which is encased with the atomizing plate 223, is secured in the protective housing 221.The first protective housing 22101 and the second protective housing 22102 are fastened by a snap-fit ​​connection. A snap-fit ​​slot 221012 is provided at one end of the first protective housing 22101. A snap-fit ​​latch 221021 is provided at one end of the second protective housing 22102. The snap-fit ​​latch 221021 engages in the snap-fit ​​slot 221012, thus forming a snap-fit ​​connection between the first protective housing 22101 and the second protective housing 22102. This facilitates quick assembly. The through-slot 2211 is provided on the first protective housing 22101. The nebulizing channel 2212 is provided on the second protective housing 22102.

[0054] In this embodiment, to facilitate the positioned mounting of the atomizing module 22 in the mounting slot 2111, several stop projections 221013 are provided on the outer circumferential side of the first protective housing 22101. The multiple stop projections 221013 are evenly distributed around the outer circumference of the first protective housing 22101. Several stop sliding grooves 2113 are provided in the mounting slot 2111. Each of the multiple stop projections 221013 corresponds to the multiple stop sliding grooves 2113. When the atomizing module 22 is inserted into the mounting slot 2111, the stop projections 221013 slide in the stop sliding grooves 2113 to prevent deflection of the atomizing module 22 during the mounting process.

[0055] Naturally, the handheld nebulizer and the nebulization module of the present application can also have many other embodiments. Other embodiments that a person skilled in the art achieves on the basis of this embodiment without any creative activity all fall within the scope of protection of the present application.

[0056] The present application proposes a handheld nebulizer and a nebulization module used therein, which facilitate the replacement of the nebulization module, and the application relates to the field of nebulization technology. The handheld nebulizer comprises a control handle and a nebulization assembly, wherein the nebulization assembly is detachably connected to the control handle. The nebulization assembly comprises: a medicine cup, wherein the medicine cup forms a detachable connection with the control handle and is electrically connected; a mouthpiece, wherein the mouthpiece forms a detachable connection with the outer wall of the medicine cup; and a nebulization module, wherein the nebulization module is detachably clamped between the medicine cup and the mouthpiece, and wherein the nebulization module is simultaneously electrically connected to the medicine cup.The hand-held nebulizer and nebulization module provided by embodiment of the present application enable convenient replacement of the inner nebulization plate to facilitate disassembly and maintenance of the nebulization plate.

Claims

[1] Handheld nebulizer, characterized by that it includes the following: a control handle; and a misting assembly, wherein the misting assembly is detachably connected to the control handle, the misting assembly comprising the following: a medicine cup, wherein the medicine cup forms a detachable connection with the control handle and is electrically connected; a mouthpiece, wherein the mouthpiece forms a detachable connection with the outer wall of the medicine cup; and a nebulization module, wherein the nebulization module is detachably clamped between the medicine cup and the mouthpiece, and wherein the nebulization module is simultaneously electrically connected to the medicine cup. [2] Handheld nebulizer according to claim 1, characterized by, that a connecting cylinder is provided on the outer wall of the medicine cup, wherein the nebulization module is received in the connecting cylinder, and wherein the mouthpiece forms a snap connection with the connecting cylinder and rests against the nebulization module. [3] Handheld nebulizer according to claim 2, characterized by , that a mounting slot is provided in the connecting cylinder, wherein the mouthpiece comprises a mouthpiece cap, wherein the nebulizing module and the mouthpiece cap are both received in the mounting slot, and wherein the outer wall of the mouthpiece cap forms a snap connection with the inner wall of the mounting slot. [4] Handheld nebulizer according to claim 3, characterized bythat at least two locking projections are provided on the inner wall of the mounting slot, wherein at least two L-shaped slots are provided on the outer wall of the mouthpiece cap, wherein the at least two L-shaped slots correspond to the at least two locking projections, and wherein the locking projections are engaged in the L-shaped slots. [5] Handheld nebulizer according to claim 2, characterized by , that a first positive and negative conductive pin is provided on the bottom wall of the connecting cylinder, wherein the nebulization module contacts the first positive and negative conductive pin to form an electrical connection. [6] Handheld nebulizer according to claim 5, characterized by , that: The medicine cup has a liquid drainage groove inside it. The nebulization module includes the following: a misting plate, wherein the misting plate comprises the following: a nebulizer; and a flexible printed circuit board attached to one side of the nebulizer body, wherein the flexible printed circuit board is electrically connected to the nebulizer body and electrically connected to the first positive and negative conductive pins; and a silicone sealing housing, wherein the silicone sealing housing is fitted over the atomizing plate and surrounds the flexible printed circuit board to provide watertight protection for the flexible printed circuit board, wherein the silicone sealing housing comprises the following: a first wall, wherein a mist discharge groove is opened in the first wall to discharge the generated nebulized medicinal fluid when the nebulizer plate performs nebulization; and a second wall opposite the first wall, wherein a liquid inlet groove is open in the second wall so that the medicinal liquid to be nebulized can flow into the nebulization plate; and a protective housing, wherein the protective housing is fitted over the silicone sealing housing, the protective housing comprising the following: a third wall adjoining the first wall, with a fogging channel open in the third wall, communicating with the fog discharge groove; and a fourth wall opposite the third wall and adjacent to the second wall, wherein a through-slot is opened in the fourth wall, the liquid inlet groove passing through the through-slot to communicate with the liquid outlet groove. [7] Handheld nebulizer according to claim 6, characterized by, that a connecting nozzle is provided on the second wall, wherein the liquid inlet groove passes through the connecting nozzle, the connecting nozzle protruding through the through-slot from the protective housing to rest against the medicine cup and allow the liquid inlet groove to communicate with the liquid outlet groove; and / or that a projection is provided on the third wall, wherein the projection is inserted into the mouthpiece, and wherein the nebulization channel passes through the projection. [8] Handheld nebulizer according to claim 7, characterized by , that a level sensor is provided in the liquid drainage groove, wherein the level sensor is electrically connected to the control handle. [9] Handheld nebulizer according to claim 1, characterized by, that a conductive contact point is provided on the medicine cup, wherein a second positive and negative conductive pin is provided on the control handle corresponding to the conductive contact point, wherein the second positive and negative conductive pin contacts the conductive contact point in order to be electrically connected. [10] Handheld nebulizer according to claim 1, characterized by , that the control handle comprises a handle housing, a main control board, a display and a battery, wherein the main control board, the display and the battery are all rigidly connected inside the handle housing, with one side of the display being flush with the outer surface of the handle housing, and wherein the main control board is electrically connected to the display, the battery and the nebulizer assembly, respectively. [11] Nebulization module, characterized by, that the nebulization module is used in the handheld nebulizer according to claim 1, wherein the nebulization module comprises the following: a misting plate, wherein the misting plate comprises the following: a nebulizer; and a flexible printed circuit board attached to one side of the nebulizer body, wherein the flexible printed circuit board is electrically connected to the nebulizer body; a silicone sealing housing, wherein the silicone sealing housing is fitted over the atomizing plate and surrounds the flexible printed circuit board to provide watertight protection for the flexible printed circuit board, wherein the silicone sealing housing comprises the following: a first wall, wherein a mist discharge groove is opened in the first wall to discharge the generated nebulized medicinal fluid when the nebulizer plate performs nebulization; and a second wall opposite the first wall, wherein a liquid inlet groove is open in the second wall so that the medicinal liquid to be nebulized can flow into the nebulization plate; and a protective housing, wherein the protective housing is fitted over the silicone sealing housing, the protective housing comprising the following: a third wall adjoining the first wall, with a fogging channel open in the third wall, communicating with the fog discharge groove; and a fourth wall opposite the third wall and adjacent to the second wall, wherein a through-slot is opened in the fourth wall, the liquid inlet groove passing through the through-slot to communicate with the liquid outlet groove of the medicine cup. [12] Nebulization module according to claim 11, characterized by, that a connecting nozzle is provided on the second wall, wherein the liquid inlet groove passes through the connecting nozzle, and the connecting nozzle protrudes from the protective housing through the through-slot. [13] Nebulization module according to claim 12, characterized by , that a projection is provided on the third wall, with the fogging duct passing through the projection. [14] Nebulization module according to claim 13, characterized by that positive and negative electrical contact points are provided on the flexible circuit board, wherein a first escape hole is provided on the silicone sealing housing corresponding to the positive and negative electrical contact points, and wherein a second escape hole is provided on the protective housing corresponding to the positive and negative electrical contact points. [15] Nebulization module according to claim 14, characterized by , that the silicone sealing housing includes the following: a first sealing housing, wherein the first sealing housing comprises a receiving slot, the atomizing plate being received in the receiving slot; and a second sealing housing, wherein the second sealing housing forms a snap connection with the first sealing housing and extends into the receiving slot to clamp the atomizing plate. [16] Nebulization module according to claim 15, characterized by , that the first sealing housing encompasses the second wall, wherein the second sealing housing encompasses the first wall. [17] Nebulization module according to claim 16, characterized by , that the protective housing includes the following: a first protective housing, wherein a mounting slot is provided inside the first protective housing, the silicone sealing housing being embedded in the mounting slot; and a second protective housing, wherein the second protective housing is snap-fitted to the first protective housing and clamps the silicone sealing housing. [18] Nebulization module according to claim 17, characterized by , that the first protective enclosure includes the fourth wall, with the second protective enclosure including the third wall.

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