CN212854268U - Atomizer nozzle - Google Patents

Abstract

The application provides an atomizer nozzle, which comprises a medicine cavity and a nozzle, wherein the medicine cavity is used for containing liquid medicine, the medicine cavity is provided with a transverse hole communicated with the nozzle, and a grid type atomization generating sheet is hermetically arranged on the outer side of the transverse hole; the nozzle presses the grid type atomization generating sheet against the outer side of the transverse hole to seal the transverse hole; a first sealing washer is arranged between the grid type atomization generating piece and the transverse hole; and a second sealing gasket is arranged between the nozzle and the grid type atomization generating sheet. The utility model provides an atomizer shower nozzle utilizes first seal ring and second seal ring from both sides centre gripping latticed atomizing generating piece for the electrode contact of the latticed atomizing generating piece that needs the power supply can be sealed and isolated, avoids liquid and electrode contact short circuit to damage the atomizer.

Description

Atomizer nozzle

Technical Field

The application relates to the field of respiratory disease treatment application, in particular to a suction type therapeutic instrument for treating respiratory diseases, such as cold, fever, cough, asthma, sore throat, rhinitis, chronic pharyngitis, tonsillitis, bronchitis and the like, and particularly relates to an atomizer nozzle.

Background

Respiratory diseases such as cold, fever, cough, asthma, sore throat, rhinitis, chronic pharyngitis, tonsillitis, bronchitis, etc. are often treated using inhalation therapeutic devices, such as nebulizers. Compressed atomizers and mesh atomizers are two types of atomizers commonly used.

The basic working principle of the mesh type atomizer, sometimes called as mesh type atomizer, micropore atomizer, etc., is to utilize piezoelectric ceramics to make a metal sheet with micropores generate high-frequency vibration, and the liquid on one side of the metal sheet is sprayed to the other side of the metal sheet through the mesh type micropores on the metal sheet under the high-frequency vibration, thereby completing the atomization of the liquid. The basic principles of the grid-type atomizer are the prior art, and those skilled in the art can easily find out the relevant academic papers through the internet, for example: a novel vibrating mesh type atomizer (mechanical and electronic, 2013, chenxi, etc.), a novel piezoelectric actuation mesh type atomizer design (southeast university, 2006, zhuyin), a development of a medical mesh type atomizer (electronic technology and software engineering, 2014, Shenlili), and the like. Grid atomizers are increasingly gaining attention due to their small size and their portability.

CN 105728214a discloses an atomizer nozzle, which is to install a gasket, an atomizing module, a fixing element and an inner cover between an outer cover and a medicine container, so that the piezoelectric material of the atomizing module and the micro-mesh are completely separated by the fixing element and the gasket. The technical problem that this prior art will solve is, avoid taking place to contact from little mesh spun atomizing liquid medicine molecule and piezoelectric material and produce heavy metal pollution, however the technical solution structure that this prior art adopted is too complicated, needs additionally to increase gasket, fixed element and inner cup around atomizing module, and the structure is more, and the connection gap is more, produces the liquid medicine very easily and leaks, and this prior art also does not provide the electric connection structure who drives atomizing module in addition.

Disclosure of Invention

The technical problem to be solved by the present application is to provide an atomizer head to reduce or avoid the aforementioned problems.

In order to solve the technical problem, the application provides an atomizer nozzle, which comprises a medicine cavity for containing liquid medicine and a nozzle, wherein the medicine cavity is provided with a transverse hole communicated with the nozzle, and the outer side of the transverse hole is hermetically provided with a grid type atomization generating piece; the nozzle presses the grid type atomization generating sheet against the outer side of the transverse hole to seal the transverse line hole; a first sealing washer is arranged between the grid type atomization generating piece and the transverse hole; and a second sealing gasket is arranged between the nozzle and the grid type atomization generating sheet.

Preferably, the grid type atomization generating sheet comprises a metal sheet with a micropore in the middle, a piezoelectric ceramic ring with a middle channel and an annular shielding film, wherein the piezoelectric ceramic ring is clamped between the metal sheet and the annular shielding film; the first sealing gasket is disposed proximate to the metal sheet; the second sealing gasket is disposed proximate the annular shielding film.

Preferably, the nozzle is provided with an annular flange extending from one side of the annular shielding film into the intermediate channel and abutting against the metal sheet.

Preferably, the grid type atomization generating sheet is connected with two electrode contacts through leads.

Preferably, the electrode contact transversely penetrates through the side wall of the atomizer spray head, and the tail end of the electrode contact extends into a cavity below the medicine cavity.

Preferably, a third sealing gasket is provided around the outside of the grid-like atomization generator plate.

Preferably, the nozzle is fixedly connected to the outer side of the atomizer head through a screw.

Preferably, a plurality of vent openings are evenly distributed around the circumference of the nozzle.

The utility model provides an atomizer shower nozzle utilizes first seal ring and second seal ring from both sides centre gripping latticed atomizing generating piece for the electrode contact of the latticed atomizing generating piece that needs the power supply can be sealed and isolated, avoids liquid and electrode contact short circuit to damage the atomizer. This application is through the both sides of simple seal ring centre gripping latticed atomizing generating piece, cooperates the annular shielding film of side shielding and directly utilizes the annular flange shielding piezoceramics circle's of nozzle intermediate channel simultaneously, need not to increase extra structure and can realize the shielding of full aspect, has avoided liquid medicine and piezoceramics to take place to contact and has produced heavy metal pollution.

Drawings

The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application. Wherein the content of the first and second substances,

FIG. 1 is a perspective view of a spray head of an atomizer in accordance with an embodiment of the present application;

FIG. 2 shows a cross-sectional view of an atomizer head according to an embodiment of the present application;

FIG. 3 shows an exploded perspective view of a spray head of an atomizer in accordance with yet another embodiment of the present application;

FIG. 4 shows a schematic structural view of a nozzle for an atomizer head according to the present application;

FIG. 5 shows a cross-sectional view of the nozzle of FIG. 4;

FIG. 6 is a schematic diagram showing the structure of a grid-type atomization generator sheet for use in the atomizer head of the present application;

fig. 7 is a sectional view showing the mesh-type atomization generator sheet shown in fig. 4.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present application, embodiments of the present application will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

Based on the defects of the prior art, the present application provides an atomizer head, as shown in fig. 1-7, wherein the atomizer head 2 of the present application includes a medicine cavity 21 for containing a liquid medicine and a nozzle 25, a cap 29 is disposed at the top end of the medicine cavity, the medicine cavity 21 has a transverse hole 22 communicated with the nozzle 25, a grid type atomization generating sheet 23 is hermetically mounted outside the transverse hole 22, the grid type atomization generating sheet 23 is connected with two electrode contacts 24 through wires, the electrode contacts 24 transversely penetrate through the side wall of the atomizer head 2, and the ends of the electrode contacts 24 extend into a cavity below the medicine cavity 21. The electrode contacts 24 may be electrically connected to other power supplies and control circuitry (not shown). The mesh-type atomization generating sheet 23 may be any commercially available product, and the structure and principle thereof are well known, and those skilled in the art can understand the contents by referring to the contents recorded in the background art, and thus the details are not described herein.

Further, the nozzle 25 is fixedly connected to the outside of the atomizer head 2 by a screw 28, and the mesh-type atomizing generating sheet 23 is pressed against the outside of the lateral hole 22 to seal the lateral hole 22. A first sealing gasket 221 is provided between the grid-type atomization initiation plate 23 and the transverse holes 22. A second sealing gasket 222 is provided between the nozzle 25 and the grid-type atomization generator sheet 23. The first sealing washer 221 and the second sealing washer 222 clamp the grid-type atomization generation sheet 23 from two sides, so that the electrode contact 24 of the grid-type atomization generation sheet 23 needing power supply can be sealed and isolated, and liquid is prevented from being short-circuited with the electrode contact 24 to damage the atomizer. The first sealing washer 221 may be used to prevent the liquid medicine in the medicine cavity 21 from leaking from the edge of the medicine cavity 21 and flowing to the electrode contact 24 to cause a short circuit, and the second sealing washer 222 may be used to prevent the atomized liquid medicine from condensing and flowing to the electrode contact 24. For positioning purposes, the outside of the atomizer head 2 is provided with a groove around the transverse bore 22 for receiving a first sealing gasket 221; similarly, the inside of the nozzle 25 is also provided with a groove for receiving a second sealing washer 222, as shown.

Further, in order to prevent the liquid from penetrating the electrode contact 24 in case, a third sealing washer 223 is disposed around the outside of the grid-type atomization generating sheet 23 to isolate the grid-type atomization generating sheet 23 from the electrode contact 24, so as to prevent the leaked liquid from reaching the electrode contact 24 and causing a short circuit. Likewise, the outer side of the atomizer head 2 is provided with grooves surrounding the grid-like atomization generator sheet 23.

Further, in one embodiment, a control circuit board and a battery (not shown) electrically connected to the electrode contact 24 may be disposed in the cavity below the drug cavity 21, or a base connected to the atomizer head may be disposed in the cavity, and a control circuit board and a battery electrically connected to the electrode contact 24 may be disposed in the base. The control circuit board can be used for converting direct current of the battery into oscillating current with a certain frequency, and is used for driving the piezoelectric ceramics of the grid type atomization generating sheet 23 to enable the metal sheet with the micropores to generate high-frequency vibration, and under the directional high-frequency vibration of the liquid medicine in the medicine cavity 21, the liquid medicine is sprayed out from the micropores in the middle of the grid type atomization generating sheet 23 to one side of the nozzle 25 to finish atomization. In order to control the operation of the equipment, structures such as a touch switch, a charging interface and the like can be arranged on the outer side of the sprayer nozzle.

In order to avoid breath holding of the patient during operation, a plurality of ventilation openings 251 are uniformly distributed around the nozzle 25 to supplement and mix external warm air during inhalation, and simultaneously reduce stimulation of low temperature of the airflow atomization process to the pharynx of the patient, thereby improving the comfort of the patient.

Further, in order to avoid heavy metal pollution caused by contact between atomized liquid medicine molecules sprayed from the micro-pores and the piezoelectric ceramics, the application provides a simplified structural form compared with the prior art, namely, the nozzle 25 is directly used for setting the abutting flange to shield the piezoelectric ceramic ring.

Referring specifically to fig. 4-7, it can be seen that the grid-type atomization generator sheet 23 includes a metal sheet 231 having a micro-hole in the center, a piezoelectric ceramic ring 232 having a middle channel 234, and an annular shielding film 233, the piezoelectric ceramic ring 232 being sandwiched between the metal sheet 231 and the annular shielding film 233. The annular shielding film 233 is an insulating film and is attached to the side surface of the piezoelectric ceramic ring 232, so that the side surface of the piezoelectric ceramic ring 232 can be completely prevented from contacting the liquid medicine, and an additional side shielding structure can be omitted compared with the prior art. The first sealing gasket 221 is disposed adjacent to the metal sheet 231; a second sealing gasket 222 is disposed adjacent to the annular shielding film 233. In order to avoid the pollution of the middle channel 234 of the piezoelectric ceramic ring 232 to the liquid medicine, the nozzle 25 of the present application is provided with an annular flange 254 extending into the middle channel 234 from the annular shielding film 233 side and abutting against the metal sheet 231, and the middle channel 234 of the piezoelectric ceramic ring 232 can be shielded by directly using the annular flange 254 of the nozzle 25.

This application is through the both sides of simple seal ring centre gripping latticed atomizing generating piece, cooperates the annular shielding film of side shielding and directly utilizes the annular flange shielding piezoceramics circle's of nozzle intermediate channel simultaneously, need not to increase extra structure and can realize the shielding of full aspect, has avoided liquid medicine and piezoceramics to take place to contact and has produced heavy metal pollution.

It should be appreciated by those skilled in the art that while the present application is described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is thus given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims and are to be interpreted as combined with each other in a different embodiment so as to cover the scope of the present application.

The above description is only illustrative of the present invention and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of this application shall fall within the scope of this application.

Claims (8)

1. A spray head of an atomizer comprises a medicine cavity (21) for containing liquid medicine and a nozzle (25), and is characterized in that the medicine cavity (21) is provided with a transverse hole (22) communicated with the nozzle (25), and the outer side of the transverse hole (22) is hermetically provided with a grid type atomization generating sheet (23); the nozzle (25) presses the grid type atomization generating sheet (23) to the outer side of the transverse hole (22) to seal the transverse hole (22); a first sealing gasket (221) is arranged between the grid type atomization generating sheet (23) and the transverse holes (22); a second sealing gasket (222) is arranged between the nozzle (25) and the grid type atomization generating sheet (23).

2. A nebulizer head according to claim 1, wherein the mesh-type nebulization generating sheet (23) comprises a metal sheet (231) having a micro-hole in the middle, a piezoceramic ring (232) having a middle channel (234), and an annular shielding film (233), the piezoceramic ring (232) being sandwiched between the metal sheet (231) and the annular shielding film (233); the first sealing gasket (221) is disposed proximate to the metal sheet (231); the second sealing gasket (222) is disposed proximate to the annular shielding film (233).

3. Atomiser head according to claim 2, characterised in that the nozzle (25) is provided with an annular flange (254) which projects from the side of the annular screening membrane (233) into the intermediate channel (234) and bears against the metal sheet (231).

4. An atomizer head according to one of claims 1 to 3, characterized in that the grid-like sheet (23) is connected to two electrode contacts (24) by means of wires.

5. An atomiser nozzle as claimed in claim 4, characterised in that the electrode contact (24) extends transversely through a side wall of the atomiser nozzle (2), the tip of the electrode contact (24) projecting into a cavity below the chamber (21).

6. Atomiser nozzle according to claim 5, characterised in that a third sealing gasket (223) is arranged around the outside of the grid-like atomisation generating plate (23).

7. Atomiser head according to claim 1, characterised in that the nozzle (25) is fixedly attached to the outside of the atomiser head (2) by means of a screw (28).

8. Atomiser head according to claim 1, characterised in that the nozzle (25) has a plurality of ventilation openings (251) distributed uniformly around its periphery.

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