WO2022048459A1

WO2022048459A1 - Anti-condensation liquid atomization core, atomizer and aerosol generating device

Info

Publication number: WO2022048459A1
Application number: PCT/CN2021/113806
Authority: WO
Inventors: 陈强; 赵贯云
Original assignee: 深圳市吉迩科技有限公司
Priority date: 2020-09-02
Filing date: 2021-08-20
Publication date: 2022-03-10
Also published as: CN112107033A

Abstract

An anti-condensation liquid atomization core (2), an atomizer and an aerosol generating device. The atomization core (2) comprises a sleeve (21) having oil intake holes (211) and air inlets (212), a heating piece (22) is provided within the sleeve (21), an oil guide piece (23) is wrapped between the heating piece (22) and the sleeve (21), and an atomization cavity is formed in the inner side of the heating piece (22). A joint (24) is also provided within the sleeve (21), the joint is provided below the heating piece (22) and is connected to the heating piece (22) by means of a positive electrode wire (28) and a negative electrode wire (29). An insulating ring (26) and an oil seal (25) are also provided between the joint (24) and the sleeve (21). The air inlets (212) are provided on the sleeve (21) between the heating piece (22) and the joint (24), and the inner wall of the sleeve above the air inlets (212) makes contact with the oil guide piece (23). A condensate will be driven by airflow of the air inlets (212) to flow upwards and is adsorbed on the oil guide piece (23), and the condensate in the high-temperature oil guide piece (23) is atomized again and taken out of the atomization core (2); meanwhile, the joint (24) and the sleeve (21) are double sealed by means of the insulating ring (26) and the oil seal (25), so that liquid leakage or oil leakage is further prevented.

Description

A kind of anti-condensation liquid atomizing core, atomizer and aerosol generating device

This application claims the priority of the Chinese patent application with the application number 202010912226.4 and the invention titled "An anti-condensation liquid atomizing core, atomizer and aerosol generating device" submitted to the China Patent Office on September 02, 2020, The entire contents of which are incorporated herein by reference.

technical field

The application belongs to the technical field of atomizers, and in particular relates to an anti-condensation liquid atomizing core, an atomizer and an aerosol generating device.

Background technique

The atomizer is composed of a nozzle assembly with an oil tank, an atomizing core and an electrode assembly. The atomizing core is the core component of the atomizer, which is mainly used to heat and atomize the e-liquid stored in the atomizer. discharge. The internal structural components of the existing atomizing core are mainly composed of an inner bracket with a heating resistance wire and an outer oil guiding part, which are assembled into a sleeve, and the bottom is sealed to form an atomizing core. The cost of these atomizing cores is high, the assembly is more complicated, the positive and negative leads are not designed to prevent oil leakage, and the condensate will flow out along the positive and negative leads, which reduces the user experience and affects the service life of the product.

Application content

The purpose of the present application is to provide an anti-condensation liquid atomizing core, an atomizer and an aerosol generating device, so as to overcome the defects of the high cost of the existing atomizing core and the easy outflow of condensate.

In order to achieve the above purpose, the present application provides an anti-condensation liquid atomizing core, comprising a sleeve with an oil inlet and an air inlet, a heating sheet, an oil guide, a joint, an oil seal and an insulating ring, characterized in that the The heating piece is arranged in the sleeve, the oil guiding member is wrapped between the heating piece and the sleeve, and an atomizing cavity is formed inside the heating piece; the joint is also arranged in the sleeve , the joint is arranged under the heating piece, and is connected with the heating piece through the positive wire and the negative wire; the insulating ring and the oil seal are also arranged between the joint and the sleeve, and the insulating ring It is arranged above the oil seal; the air inlet hole is arranged on the sleeve between the heating plate and the joint, and the inner wall of the sleeve above the air inlet hole is in contact with the oil guide member.

The joint is sealed and fixed with the sleeve through the insulating ring and the oil seal. Compared with the conventional joint that is only sealed by the oil seal, the insulating ring can separate the positive wire and the negative wire, ensuring that The normal use of the heating film can also improve the sealing performance of the atomizing core and prevent liquid leakage or oil leakage. Between the air inlet hole and the heating plate and the joint, the condensate accumulation will be stored in the middle of the air inlet hole, but the condensate has tension, and the air inlet hole will lock the condensate in a short time. When the user sucks, the airflow enters from the air inlet, and the condensate will flow upwards. There is an oil guide on the upper part. The condensate will be adsorbed on the oil guide. Out of the atomizer core. The oil guiding member can be made of absorbent materials such as cotton and porous ceramics.

Preferably, the inner side of the sleeve is provided with a first cavity and a second cavity, and the diameter of the second cavity is smaller than the diameter of the first cavity and larger than the diameter of the atomization cavity; The heat generating sheet and the oil guiding member are installed in the first cavity. That is, a step is formed at the connection between the first cavity and the second cavity, the outer side of the oil guide member is placed on the step, and the inner side of the oil guide member is suspended above the second cavity. Preferably, the suspended portion of the oil guide member is larger than the portion of the oil guide member placed on the step. It is more conducive to the absorption of condensate. Preferably, grooves may be provided at the steps, which may be used to store spilled e-liquid.

Preferably, the air inlet hole is arranged in the lower part of the second cavity; the oil inlet hole is arranged in the middle or lower part of the first cavity. The air hole can be buffered in the second cavity before entering the atomizing cavity.

Preferably, there are more than two air inlet holes, which are arranged at intervals along the circumferential direction of the sleeve. The air inlet holes can be arranged into a plurality of small holes, which is more conducive to the adsorption of the condensate.

Preferably, an installation groove is provided on the outer side of the sleeve between the heat generating sheet and the joint, and an O-ring is installed in the installation groove, and the O-ring is arranged above the air inlet hole. Preferably, the O-ring is arranged on the upper part of the second cavity. When connecting with the suction nozzle assembly with the oil tank, it is more favorable to seal the oil tank.

Preferably, the heating sheet is annular, and its cross section is circular, square or polygonal.

Preferably, the lower ends of the positive wire and the negative wire are respectively arranged on the inner side and the outer side of the insulating ring. The negative electrode wire can be bent and arranged according to the shape of the insulating member during installation.

Preferably, the joint includes a joint body, and the middle and lower parts of the joint body are sequentially provided with a first boss and a second boss; the sleeve between the top end of the joint body and the first boss The inner side is provided with a mounting boss, and the inner side of the lower end of the sleeve is provided with a mounting groove; both sides of the insulating ring are respectively provided with grooves matching the first boss and the mounting boss; the sealing ring There are grooves and protrusions matching the second bosses and the mounting grooves. Preferably, the diameter of the joint body above the first boss is larger than the diameter of the joint body below the first boss. That is, the contact surface of the insulating ring and the joint and the contact surface of the oil seal and the joint are not on the same vertical line, and the contact surfaces are staggered, which is more conducive to sealing.

Another technical solution of the present application: an atomizer, comprising a suction nozzle assembly with an oil tank, an electrode assembly and an anti-condensation liquid atomization core, wherein the anti-condensation liquid atomization core includes an oil inlet hole and an air intake The sleeve, the heating piece, the oil guide, the joint, the oil seal and the insulating ring, the heating piece is arranged in the sleeve, and the oil guide is wrapped between the heating piece and the sleeve. An atomizing cavity is formed on the inner side of the heating plate; the joint is also provided in the sleeve, the joint is arranged below the heating plate, and is connected with the heating plate through a positive wire and a negative wire; the joint is connected to the heating plate. The insulating ring and the oil seal are also arranged between the sleeves, and the insulating ring is arranged above the oil seal; the air inlet hole is arranged on the sleeve between the heating sheet and the joint, so The inner wall of the sleeve above the air inlet is in contact with the oil guide;

The upper casing of the electrode assembly is provided with a vent hole, and the vent hole communicates with the air inlet hole.

Further, the housing is also provided with an air-adjusting ring, and the air-adjusting ring is provided with an air supply port. By rotating the adjustment ring, the communication area between the air port and the air supply port can be adjusted, thereby adjusting the size of the air intake. .

Preferably, the inner side of the sleeve is provided with a first cavity and a second cavity, and the diameter of the second cavity is smaller than the diameter of the first cavity and larger than the diameter of the atomization cavity; The heat generating sheet and the oil guiding member are installed in the first cavity.

Preferably, the air inlet hole is arranged in the lower part of the second cavity; the oil inlet hole is arranged in the middle or lower part of the first cavity.

Preferably, there are more than two air inlet holes, which are arranged at intervals along the circumferential direction of the sleeve.

Preferably, an installation groove is provided on the outer side of the sleeve between the heat generating sheet and the joint, and an O-ring is installed in the installation groove, and the O-ring is arranged above the air inlet hole.

Preferably, the lower ends of the positive wire and the negative wire are respectively arranged on the inner side and the outer side of the insulating ring.

Preferably, the joint includes a joint body, and the middle and lower parts of the joint body are sequentially provided with a first boss and a second boss; the sleeve between the top end of the joint body and the first boss The inner side is provided with a mounting boss, and the inner side of the lower end of the sleeve is provided with a mounting groove; both sides of the insulating ring are respectively provided with grooves matching the first boss and the mounting boss; the sealing ring There are grooves and protrusions matching the second bosses and the mounting grooves.

Yet another technical solution of the present application: an aerosol generating device, comprising a host and the above-mentioned atomizer, wherein the atomizer is installed on the host.

Compared with the prior art, the present application has the following beneficial effects:

1. In this application, an air inlet hole is arranged on the sleeve between the heating plate and the joint, and is composed of a plurality of small holes, and the condensate generated during the atomization process will be gathered and stored in the middle of the air inlet hole, However, the condensate has tension, and the air inlet will lock it for a short time. When the user sucks, the airflow enters from the air inlet and will flow upward with the condensate. There is an oil guide on the upper part, and the condensate will be adsorbed on the guide. On the oil parts, with the high temperature, the condensate will be atomized again and taken out of the atomizing core.

2. The atomizing core of this application is formed by a combination of a sleeve, an oil guide, a heating plate, an O-ring, an insulating ring, an oil seal and a contact. The entire atomizing core only uses two hardware parts, one is the sleeve and the other is Contact, others use silicone material for sealing and insulation, simple structure and low cost.

3. The joint of the atomizing core of the present application is sealed by the insulating ring and the oil seal. Compared with the conventional joint that is only sealed by the oil seal, the insulating ring can separate the positive wire and the negative wire, ensuring that the The normal use of the heating sheet can also improve the sealing performance of the atomizing core and further prevent liquid leakage or oil leakage.

Description of drawings

FIG. 1 is a schematic structural diagram of the anti-condensation liquid atomizing core of the present application.

FIG. 2 is a cross-sectional view of the anti-condensation liquid atomizing core of the present application.

FIG. 3 is an exploded view of the anti-condensation liquid atomizing core of the present application.

FIG. 4 is a schematic structural diagram of the atomizer of the present application.

FIG. 5 is a schematic view of the split structure of the atomizer of the present application.

Description of main reference signs:

1. Suction nozzle assembly; 11. Housing; 111. Air vent; 12. Air adjusting ring; 121. Air supply port;

2, atomizing core; 21, sleeve; 211, oil inlet; 212, air inlet; 213, first cavity; 214, second cavity; 215, installation groove; 216-installation boss; 22 , heating plate; 23, oil guide; 24, joint; 241, joint body; 242, first boss; 243, second boss; 25, oil seal; 26, insulating ring; 27, O-ring; 28, Positive line; 29. Negative line;

3. Electrode components.

detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implying the number of indicated technical features. Thus, features delimited with "first", "second" may expressly or implicitly include at least one of said features. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

Example 1

As shown in Figures 1-3, an anti-condensation liquid atomizing core 2 includes a sleeve 21 with an oil inlet 211 and an air inlet 212, a heating plate 22, an oil guide 23, a joint 24, an oil seal 25, an insulation Ring 26 and O-ring 27. The sleeve 21 is provided with the heating element 22 , the oil guiding member 23 is wrapped between the heating element 22 and the sleeve 21 , an atomizing cavity is formed inside the heating element 22 , and the atomization Inlet at the bottom of the cavity and outlet at the top. The sleeve 21 is also provided with the joint 24 , the joint 24 is arranged below the heating element 22 and is connected to the heating element 22 through a positive wire 28 and a negative wire 29 . The air inlet hole is provided on the sleeve 21 between the heating plate and the joint 24 , and the inner wall of the sleeve 21 above the air inlet hole is in contact with the oil guide member 23 . The oil guiding member 23 can be made of absorbent materials such as cotton and porous ceramics.

Further, the inner side of the sleeve 21 is provided with a first cavity 213 negative wire 29 and a second cavity 214, the diameter of the second cavity 214 is smaller than the diameter of the negative wire 29 of the first cavity 213, and larger than the diameter of the atomizing cavity; the heating element 22 and the oil guide 23 are installed in the negative wire 29 of the first cavity 213, and the heating element 22 and the oil guide 23 are A space is left between the top and the inside of the negative wire 29 of the first cavity 213 to facilitate the installation of the suction nozzle assembly 1 . Specifically, a step is formed at the connection between the negative wire 29 of the first cavity 213 and the second cavity 214 , the outer side of the oil guide member 23 is placed on the step, and the inner side of the oil guide member 23 is suspended in the above the second cavity 214 . Preferably, the suspended portion of the oil guide member 23 is larger than the portion of the oil guide member 23 placed on the step. It is more conducive to the absorption of condensate. In other embodiments, grooves may be provided at the steps, which may be used to store spilled e-liquid.

Further, the air inlet hole is arranged in the lower part of the second cavity 214 ; the oil inlet hole 211 is arranged in the lower part of the middle part of the negative wire 29 of the first cavity 213 . There are two or more air inlet holes, which are arranged at intervals along the circumferential direction of the sleeve 21 . That is, the air inlet holes can be arranged into a plurality of small holes, which is more conducive to the adsorption of the condensate.

Further, the heating sheet is annular, and its cross-section is circular. Of course, in other embodiments, the cross-sectional area of the heating sheet may also be a square or a polygon. The lower ends of the positive wire 28 and the negative wire 29 are respectively disposed on the inner side and the outer side of the insulating ring 26 .

The insulating ring 26 and the oil seal 25 are further arranged between the joint 24 and the sleeve 21 , and the insulating ring 26 is arranged above the oil seal 25 . Further, the joint 24 includes a joint body 214 , a first boss 242 and a second boss 243 are arranged in the middle and the lower part of the joint body 214 in sequence; the top of the joint body 214 and the first boss 242 The inner side of the sleeve 21 is provided with a mounting boss 216, and the inner side of the lower end of the sleeve 21 is provided with a mounting groove 215; the two sides of the insulating ring 26 are respectively provided with the first boss 242 and the first boss 242. A groove matching the mounting boss 216 ; the sealing ring is provided with a groove and a protrusion matching the second boss 243 and the mounting groove 215 . Preferably, the diameter of the joint body 214 above the first boss 242 is larger than the diameter of the joint body 214 below the first boss 242 . That is, the contact surface of the insulating ring 26 and the joint 24 and the contact surface of the oil seal 25 and the joint 24 are not on the same vertical line, and the contact surfaces are staggered, which is more conducive to sealing.

Further, an installation groove is provided on the outer side of the sleeve 21 between the heating plate 22 and the joint 24, and an O-ring 27 is installed in the installation groove, and the O-ring 27 is arranged on the air inlet. above the hole. Preferably, the O-ring 27 is provided on the upper part of the second cavity 214 . When connecting with the suction nozzle assembly 1 with an oil tank, it is more favorable to seal the oil tank.

The assembly steps of the anti-condensation liquid atomizing core 2 are as follows:

(1) Wrap the heating sheet 22 on the lower end of the step of the jig, and then wrap the oil guide 23 on the heating sheet 22 in a full circle;

(2) Insert the wrapped heating element 22 along the sleeve 21 onto the inner step of the sleeve 21 (ie, the bottom end of the first cavity 213 ), and do not remove the jig;

(3) Separate the positive line 28 and the negative line 29, install the insulating ring 26, make one inside and one outside, get stuck inside the sleeve 21, and cut off the excess lines;

(4) Set the oil seal 25 and the contact well first, and then plug it on the insulating ring 26. The oil seal 25 is flush with the bottom of the sleeve 21 and is not loose;

(5) Remove the fixture, and the atomizing core 2 is completed.

The jig is cylindrical and divided into upper and lower sections. The diameter of the upper section of the jig is larger than the diameter of the lower section of the jig, that is, a step is formed between the upper section of the jig and the lower section of the jig. The diameter of the upper section is consistent with the diameter of the negative wire 29 of the first cavity 213 of the sleeve 21 , and the diameter of the lower section of the fixture is consistent with the diameter of the atomization cavity.

Example 2

As shown in Figures 4-5, an atomizer includes a nozzle assembly 1 with an oil tank, an electrode assembly 3, and the anti-condensation liquid atomizing core 2 described in Embodiment 1. A shell on the upper part of the electrode assembly 3 The body 11 is provided with an air vent 111, and the air vent communicates with the air intake hole. Further, the housing 11 is also provided with an air adjusting ring 12, and the air adjusting ring 12 is provided with an air supply port 121. By rotating the adjusting ring, the communication area between the air port 111 and the air supply port 121 can be adjusted, and further Adjust the size of the intake air.

The atomizer can also be assembled with the host to form an aerosol generating device. The atomizer is installed on the host and fixed by magnets or the like.

In conclusion, the present invention has simple structure and low cost. The condensate generated by the atomizing core 2 will flow upward under the air flow of the air inlet and be adsorbed on the oil guide 23. With the high temperature, the condensate in the oil guide 23 will be re-atomized and taken out of the atomizing core. 2. Prevent leakage of condensate; at the same time, the joint 24 and the sleeve 21 are double-sealed by the insulating ring 26 and the oil seal 25 to further prevent liquid leakage or oil leakage.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many changes and modifications are possible in light of the above teachings. The exemplary embodiments were chosen and described for the purpose of explaining certain principles of the invention and their practical application, to thereby enable one skilled in the art to make and utilize various exemplary embodiments and various different aspects of the invention. Choose and change. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

An anti-condensation liquid atomizing core, comprising a sleeve with an oil inlet and an air inlet, a heating piece, an oil guide, a joint, an oil seal and an insulating ring, the heating piece is arranged in the sleeve, and the heating piece is arranged in the sleeve. The oil guide member is wrapped between the heating plate and the sleeve, and an atomization cavity is formed inside the heating plate; the joint is also arranged in the sleeve, and the joint is arranged under the heating plate and is The positive and negative wires are connected to the heating plate; the insulating ring and the oil seal are also arranged between the joint and the sleeve, and the insulating ring is arranged above the oil seal; the air inlet is provided with On the sleeve between the heating sheet and the joint, the inner wall of the sleeve above the air inlet is in contact with the oil guide.
The anti-condensation liquid atomizing core according to claim 1, wherein a first cavity and a second cavity are arranged up and down inside the sleeve, and the diameter of the second cavity is smaller than the diameter of the first cavity. The diameter is larger than the diameter of the atomization cavity; the heating plate and the oil guide member are installed in the first cavity.
The anti-condensation liquid atomizing core according to claim 2, wherein the air inlet hole is arranged in the lower part of the second cavity; the oil inlet hole is arranged in the middle or lower part of the first cavity.
The anti-condensation liquid atomizing core according to claim 1, wherein there are two or more air inlet holes, which are arranged at intervals along the circumferential direction of the sleeve.
The anti-condensation liquid atomizing core according to claim 1, wherein an installation groove is provided on the outer side of the sleeve between the heating plate and the joint, and an O-ring is installed in the installation groove, and the O-ring is installed in the installation groove. The ring is arranged above the air inlet hole.
The anti-condensation liquid atomizing core according to claim 1, wherein the heating plate is annular, and its cross section is circular, square or polygonal.
The anti-condensation liquid atomizing core according to claim 1, wherein the lower ends of the positive wire and the negative wire are respectively arranged on the inner side and the outer side of the insulating ring.
The anti-condensation liquid atomizing core according to claim 1, wherein the joint comprises a joint body, and the middle part and the lower part of the joint body are sequentially provided with a first boss and a second boss; the top end of the joint body is connected with The inner side of the sleeve between the first bosses is provided with a mounting boss, and the inner side of the lower end of the sleeve is provided with a mounting groove; both sides of the insulating ring are respectively provided with the first boss and the a groove matching the mounting boss; the sealing ring is provided with a groove and a protrusion matching the second boss and the mounting groove.
An atomizer, comprising a suction nozzle assembly with an oil tank, an electrode assembly and an anti-condensation liquid atomization core, wherein the anti-condensation liquid atomization core includes a sleeve with an oil inlet hole and an air inlet, a heating plate, a guide An oil piece, a joint, an oil seal and an insulating ring, the heating element is arranged in the sleeve, the oil guiding element is wrapped between the heating element and the sleeve, and an atomizing cavity is formed inside the heating element; The joint is also provided in the sleeve, the joint is arranged below the heating plate, and is connected to the heating plate through the positive wire and the negative wire; there is also a joint between the joint and the sleeve. The insulating ring and the oil seal, the insulating ring is arranged above the oil seal; the air inlet hole is arranged on the sleeve between the heating sheet and the joint, and the inner wall of the sleeve above the air inlet hole contact with the oil guide;

The upper casing of the electrode assembly is provided with a vent hole, and the vent hole communicates with the air inlet hole.
The atomizer according to claim 9, wherein the housing is further provided with an air adjusting ring, and the air adjusting ring is provided with an air supply port, and by rotating the adjusting ring, the difference between the air port and the air supply port can be adjusted. Connecting area, and then adjust the size of the intake air.
The atomizer according to claim 9, wherein a first cavity and a second cavity are provided up and down inside the sleeve, the diameter of the second cavity is smaller than the diameter of the first cavity, and is larger than the diameter of the atomizing cavity; the heating plate and the oil guiding member are installed in the first cavity.
The atomizer according to claim 11, wherein the air inlet hole is arranged in the lower part of the second cavity; the oil inlet hole is arranged in the middle or lower part of the first cavity.
The atomizer according to claim 9, wherein there are two or more air inlet holes, which are arranged at intervals along the circumferential direction of the sleeve.
The atomizer according to claim 9, wherein an installation groove is provided on the outer side of the sleeve between the heating plate and the joint, and an O-ring is installed in the installation groove, and the O-ring is provided with an O-ring. above the air inlet.
The atomizer according to claim 9, wherein the heating plate is annular, and its cross section is circular, square or polygonal.
The atomizer according to claim 9, wherein the lower ends of the positive and negative wires are respectively disposed on the inner side and the outer side of the insulating ring.
The atomizer according to claim 9, wherein the joint comprises a joint body, and the middle and lower parts of the joint body are sequentially provided with a first boss and a second boss; A mounting boss is provided on the inner side of the sleeve between a boss, and a mounting groove is provided on the inner side of the lower end of the sleeve; both sides of the insulating ring are respectively provided with the first boss and the mounting boss a matching groove; the sealing ring is provided with grooves and protrusions matching with the second boss and the mounting groove.
An aerosol generating device, comprising a main body and an atomizer as claimed in claim 9, wherein the atomizer is installed on the main body.