Disclosure of Invention
In order to solve the problems existing in the prior art, the invention provides an atomization element which comprises an atomization core, a liquid guide element and an atomization element shell, wherein the liquid guide element is used for wrapping the outer peripheral wall of the atomization core, the inner peripheral wall of the atomization element shell is used for wrapping the outer peripheral wall of the liquid guide element, the atomization element shell is provided with a top opening, a bottom opening and an inner cavity surrounded by the atomization element shell, an atomization chamber is formed in the area containing the atomization core, one or more air guide channels communicated with the atomization chamber are arranged between the outer peripheral wall of the liquid guide element and the inner peripheral wall of the atomization element shell, one or more liquid guide holes are formed in the wall part of the atomization element shell, and at least one liquid guide hole is communicated with at least one air guide channel.
Preferably, a groove is provided on an inner peripheral wall of the atomizing element housing, so that the air guide channel is formed between the liquid guide element and the atomizing element housing.
Preferably, a groove is provided on the outer peripheral wall of the liquid guiding element, so that the air guiding channel is formed between the liquid guiding element and the atomizing element housing.
Preferably, the maximum inscribed circle diameter of the air guide channel cross section is 0.05mm to 0.5mm.
Preferably, the density of the liquid directing element is from 0.08 g/cm 3 to 0.35 g/cm 3.
Preferably, the thickness of the liquid guiding element is 0.3mm to 2mm.
Preferably, the liquid guiding element forms a three-dimensional structure of a three-dimensional network by thermal bonding of bicomponent fibers, the bicomponent fibers are provided with a sheath layer and a core layer, and the sheath layer and the core layer are of a concentric structure or an eccentric structure.
Preferably, the atomizing core is made of a porous material, and a heating material is pre-buried in the porous material.
Preferably, the aerosol bomb comprises an atomizing element as described above.
Preferably, the aerosol bomb further comprises a liquid storage element and an aerosol channel connected with the top opening of the atomizing element.
Preferably, the aerosol cartridge further comprises a liquid absorbing element mounted to the bottom of the aerosol cartridge to absorb liquid.
Preferably, the aerosol bomb further comprises a tubular condensate absorbing element disposed in the aerosol passage.
The liquid guide element made of the two-component fiber has higher strength and toughness, is not easy to fold or break during installation, can be conveniently assembled in the atomization element, is easy to realize assembly automation, improves the efficiency, saves the cost, and is particularly suitable for manufacturing large-scale consumer products such as electronic cigarettes and the like. Because the bicomponent fiber bonds to form a three-dimensional structure of the three-dimensional network, a plurality of capillary holes which are communicated with each other are formed in the liquid guide element, and the capillary holes are favorable for the rapid and stable conduction of liquid in the liquid guide element, so that the liquid consumed on the atomizing core can be rapidly supplemented. The atomization element comprises the air guide channel between the liquid guide element and the atomization element shell, and the air guide channel and the liquid guide element form a stable air-liquid exchange system, so that the atomization stability is improved.
The atomization element can be applied to atomization of various electronic cigarette liquids, is also suitable for atomization of medicines, and is also suitable for atomization of electric mosquito repellent liquid and air aromatic. In order to make the above-mentioned objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present invention and fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like elements/components are referred to by like reference numerals.
Unless otherwise indicated, terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
First embodiment
Fig. 1a is a longitudinal cross-sectional view of an atomizing element according to a first embodiment of the present disclosure, fig. 1b is a cross-sectional view of an atomizing element A-A according to a first embodiment of the present disclosure, and fig. 1c is a schematic longitudinal cross-sectional view of an aerosol cartridge 800 having an atomizing element according to a first embodiment of the present disclosure.
As shown in fig. 1a to 1c, the atomizing element according to the first embodiment of the present invention includes an atomizing core 930, a liquid guiding element 200, and an atomizing element housing 929, wherein the liquid guiding element 200 covers an outer peripheral wall of the atomizing core 930, an inner peripheral wall of the atomizing element housing 929 covers an outer peripheral wall of the liquid guiding element 200, the atomizing element housing 929 has a top opening 9291, a bottom opening 9292, and an inner cavity surrounded by the atomizing element housing 929, and an area where the inner cavity includes the atomizing core 930 forms an atomizing chamber 934.
One or more air guide channels 836 communicating with the atomizing chamber 934 are provided between the outer peripheral wall of the liquid guide element 200 and the inner peripheral wall of the atomizing element housing 929, one or more liquid guide holes 837 are provided in the wall portion of the atomizing element housing 929, and at least one liquid guide hole 837 communicates with at least one air guide channel 836.
The atomizing core 930 is preferably a tubular atomizing core 930, such as a tubular body, e.g., square tube, round tube, or the like. The liquid guiding element 200 is adapted to the atomizing core 930 and is also preferably tubular in design. The liquid guiding element 200 may partially or fully cover the outer circumferential wall of the atomizing core 930. The atomizing element housing 929 is preferably made of metal or plastic, and one or more liquid guide holes 837 are provided in a wall portion of the atomizing element housing 929. The liquid guide holes 837 may be provided in the wall portion of the atomizing element housing 929 in the axial direction, or may be provided in the wall portion of the atomizing element housing 929 in the radial direction. In this embodiment, a plurality of elongated liquid guiding holes 837 are preferably provided in the atomizing element housing 929 in the radial direction, and at least one liquid guiding hole 837 communicates with at least one air guiding channel 836.
The outer circumferential wall of the tubular liquid guiding element 200 contacts the liquid introduced from the liquid guiding hole 837 at the position of the liquid guiding hole 837, and the inner circumferential wall of the liquid guiding element 200 contacts the outer circumferential wall of the atomizing core 930, whereby the liquid guiding element 200 conducts the liquid for the atomizing core 930.
A groove B may be provided on the inner peripheral wall of the atomizing element housing 929, or a groove a may be provided on the outer peripheral wall of the liquid guide member 200, so that an air guide passage 836 is formed between the liquid guide member 200 and the atomizing element housing 929, or an air guide tube formed separately may be provided as the air guide passage 836 between the inner peripheral wall of the atomizing element housing 929 and the outer peripheral wall of the liquid guide member 200. The maximum inscribed circle diameter of the cross section of the air guide channel 836 is set to be 0.05mm to 0.5mm, such as 0.05mm, 0.08mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, depending on the application requirements of the atomizing element. In applications where the amount of atomization is small or the viscosity of the liquid is small, the maximum inscribed circle diameter of the cross-section of the air channel 836 is preferably set small. Conversely, the maximum inscribed circle diameter of the cross section of the air guide passage 836 is preferably set larger.
The thickness of the liquid guiding element 200 refers to the shortest distance that liquid is conducted from one side of the liquid guiding element 200 to the other side, and the thickness of the tubular liquid guiding element 200 is the thickness of the tube wall. The thickness of the liquid guiding element 200 is 0.3mm to 2mm, such as 0.3mm, 0.5mm, 0.8mm, 1.0mm, 1.5mm, 2mm. The liquid guiding element 200 having a smaller thickness can be preferably applied to an atomizing element having a small space, but when the thickness of the liquid guiding element 200 is smaller than 0.3mm, it is difficult to manufacture the liquid guiding element 200 uniformly. The thicker liquid guiding element 200 is stronger and more convenient to assemble, but it is generally difficult to install in a fine atomizing element when the thickness of the liquid guiding element 200 is greater than 2mm.
The density of the liquid-directing element 200 is from 0.08 g/cm 3 to 0.35 g/cm 3, such as from 0.08 g/cm 3, 0.1 g/cm 3, 0.15 g/cm 3, 0.2 g/cm 3, 0.25 g/cm 3, 0.3 g/cm 3, 0.35 g/cm 3, preferably from 0.1 to 0.3 g/cm 3. When the density is less than 0.08 g/cm 3, the strength of the liquid-guiding element 200 is insufficient, and the liquid-guiding element 200 is easily deformed or even wrinkled during assembly, which affects the stability of atomization. When the density is more than 0.35 g/cm 3, the liquid guiding speed is slow, the atomization efficiency is affected, and the hardness of the liquid guiding element 200 with high density is too high, the radial elasticity is insufficient, and the matching property of the liquid guiding element 200 in the atomization element is reduced.
The liquid guiding element 200 is a three-dimensional structure formed by thermally bonding bicomponent fibers of a sheath-core structure. The sheath and core layers of the bicomponent fibers may be concentric or eccentric. The bicomponent fibers may be filaments or staple fibers, and the filaments may be elasticized. The liquid guide element 200 made of filaments has higher rigidity, and the liquid guide element 200 made of short fibers has better elasticity. Bicomponent fibers may be selected to form a suitable liquid-directing component 200 based on the performance requirements of the liquid-directing component 200. The core layer of the bicomponent fiber is higher than the melting point of the sheath layer by more than 20 ℃, so that the core layer can keep certain rigidity when the fibers are thermally bonded, and the liquid guide element 200 with uniform gaps can be conveniently manufactured.
The sheath of the bicomponent fiber may be a polyolefin, a polyester, a low melting point copolyester, or a polyamide, such as polyethylene, polypropylene, a copolyester of ethylene terephthalate (Co-PET), polypropylene terephthalate (PTT), polybutylene terephthalate (PBT), polylactic acid, polyamide-6, and the like. When the skin layer is polyethylene, the core layer may be a polymer such as polypropylene, polyethylene terephthalate (PET for short), or the like. When the skin layer is polypropylene, the core layer may be PET, polyamide, or the like. The sheath melting point of the bicomponent fiber is lower, which is beneficial to improving the production efficiency and reducing the manufacturing cost. The sheath layer of the bicomponent fiber has a higher melting point and the liquid guiding element 200 has a higher temperature resistance, which is advantageous for increasing the working temperature of the atomizing core 930. The bicomponent fibers making up the fluid transfer element 200 of the present invention have a denier of between 1 and 30 denier, preferably between 1.5 and 10 denier. The bicomponent fiber selected in this example has a denier of 3, a sheath layer of polyethylene and a core layer of polypropylene, and the resulting liquid-guiding element 200 has a thickness of 0.6-1.2mm and a density of 0.1-0.3 g/cm 3.
The tubular atomizing core 930 is a porous material with a heating material embedded therein, such as a porous ceramic with an electric heating wire embedded therein, and liquid can permeate through the porous material. The atomizing core 930 may be circular, oval, or other geometric shape in cross-section. A portion of the outer wall of the tubular liquid guiding element 200 is introduced into the liquid to be atomized through the liquid guiding holes 837, and the liquid permeates in the liquid guiding element 200 in the axial and radial directions and is conducted through the liquid guiding element 200 to the atomizing core 930. The atomizing core 930 may include a wire 933, and the wire 933 may be connected to an external wire pin 936.
As shown in fig. 1c, an aerosol bomb 800 according to the present invention is equipped with the atomizing element described above. The aerosol cartridge 800 further comprises a liquid storage element 100 and an aerosol passage 1303 connected to a top opening 9291 of the nebulizing element. The aerosol passage 1303 may be seamlessly abutted on the top opening 9291 of the aerosol element as shown, or may be connected to the top opening 9291 by a connection mechanism or a snap-fit mechanism (not shown). The liquid storage element 100 may be integrally formed with the aerosol passage 1303, or may be assembled after being separately formed.
The liquid storage element 100 is a part for storing liquid in the aerosol bomb 800, and the liquid to be atomized, such as e-cigarette tar, air freshener, and the like, is injected into the liquid storage element 100. The liquid storage element 100 may be a cavity made of plastic or metal.
The liquid is injected into the liquid storage element 100 of the aerosol cartridge 800, the liquid reaches equilibrium after penetrating the liquid guiding element 200 and the atomizing core 930, and a certain negative pressure is formed in the liquid storage element 100, and the air guiding channel 836 is liquid-sealed due to the capillary force.
The aerosol cartridge 800 further includes a reservoir housing bottom seal 112 disposed at the bottom of the aerosol cartridge 800, the reservoir housing bottom seal 112 having a seal through hole 1122 formed therein that axially extends through the reservoir housing bottom seal 112, the seal through hole 1122 being in communication with the atomizing chamber 934 and having a seal air inlet 1121. In use, the air flow heats the atomizing core 930 while entering the atomizing chamber 934 through the seal air inlet 1121, the liquid on the atomizing core 930 is atomized and escapes from the aerosol passage 1303, and the liquid-guiding element 200 supplements the liquid to the atomizing core 930 and absorbs the liquid from the liquid-storing element 100. As atomization progresses, the negative pressure in the liquid storage element 100 increases and the gas in the atomization chamber 934 enters the liquid storage element 100 via the gas guide channel 836 and the gas guide hole 837 in communication therewith until the gas-liquid exchange system is rebalanced, whereby the gas guide element 200 and the gas guide channel 836 form a stable gas-liquid exchange system in the atomization element, thereby achieving a smooth atomization process.
Second embodiment
Fig. 2a is a longitudinal cross-sectional view of an atomizing element according to a second embodiment of the present disclosure, and fig. 2b is a schematic longitudinal cross-sectional view of an aerosol cartridge according to a second embodiment of the present disclosure. The present embodiment is similar to the first embodiment in structure, and the same parts as those of the first embodiment are not described in detail in the description of the present embodiment.
As shown in fig. 2a and 2b, the atomizing element according to the second embodiment of the present invention includes an atomizing core 930, a liquid guiding element 200, and an atomizing element housing 929, wherein the liquid guiding element 200 covers an outer circumferential wall of the atomizing core 930, an inner circumferential wall of the atomizing element housing 929 covers an outer circumferential wall of the liquid guiding element 200, the atomizing element housing 929 has a top opening 9291, a bottom opening 9292, and an inner cavity surrounded by the atomizing element housing 929, and an area containing the atomizing core 930 forms an atomizing chamber 934.
One or more air guide channels 836 communicating with the atomizing chamber 934 are provided between the outer peripheral wall of the liquid guide element 200 and the inner peripheral wall of the atomizing element housing 929, one or more liquid guide holes 837 are provided in the wall portion of the atomizing element housing 929, and at least one liquid guide hole 837 communicates with at least one air guide channel 836.
A plurality of grooves a are provided on the outer peripheral wall of the liquid guiding element 200 in the axial direction, so that a plurality of air guiding channels 836 are formed between the liquid guiding element 200 and the atomizing element housing 929, and the air guiding channels 836 communicate with the atomizing chamber 934. The atomizing element housing 929 is made of stainless steel, and two liquid guide holes 837 are provided radially opposite to each other at positions of the atomizing element housing 929 near the bottom but at different heights from the bottom, and the arc length of each liquid guide hole 837 slightly exceeds half the circumference of the atomizing element housing 929, so that each air guide channel 836 communicates with the liquid guide hole 837.
Preferably, the atomizing core 930 is porous ceramic with embedded heating wires, the maximum inscribed circle diameter of the cross section of the air guide channel 836 is 0.2mm-0.5mm, the thickness of the liquid guide element 200 is 0.8-1.5mm, the density is 0.2-0.35 g/cm 3, the liquid guide element is made by bonding bicomponent fibers with a sheath-core structure, the sheath layer of the bicomponent fibers is PBT, the core layer is PET, the liquid guide element 200 has better temperature resistance, and can be used for atomizing liquid with higher temperature, such as CBD. The aerosol bullet 800 of the present embodiment further includes a liquid absorbing member 401 mounted on the bottom of the aerosol bullet 800, whereby the leak-proof performance of the aerosol bullet 800 can be improved. The liquid absorbing element 401 may be installed below the liquid storing element housing bottom sealing portion 112 of the aerosol cartridge 800, or two liquid storing element housing bottom sealing portions 112 may be provided at the bottom of the aerosol cartridge 800, and the liquid absorbing element 401 is provided between the two liquid storing element housing bottom sealing portions 112. The working principle of this embodiment is the same as that of embodiment 1.
Third embodiment
Fig. 3a is a longitudinal cross-sectional view of an atomizing element according to a third embodiment of the present disclosure, fig. 3B is a cross-sectional view of an atomizing element A-A, fig. 3c is a cross-sectional view of an atomizing element B-B, and fig. 3d is a schematic longitudinal cross-sectional view of an aerosol cartridge according to a third embodiment of the present disclosure. The present embodiment is similar to the first embodiment in structure, and the same parts as those of the first embodiment are not described in detail in the description of the present embodiment.
As shown in fig. 3a to 3d, the atomizing element according to the third embodiment of the present invention includes an atomizing core 930, a liquid guiding element 200, and an atomizing element housing 929, wherein the liquid guiding element 200 covers an outer peripheral wall of the atomizing core 930, an inner peripheral wall of the atomizing element housing 929 covers an outer peripheral wall of the liquid guiding element 200, the atomizing element housing 929 has a top opening 9291, a bottom opening 9292, and an inner cavity surrounded by the atomizing element housing 929, and an area including the atomizing core 930 forms an atomizing chamber 934.
One or more air guide channels 836 communicating with the atomizing chamber 934 are provided between the outer peripheral wall of the liquid guide element 200 and the inner peripheral wall of the atomizing element housing 929, one or more liquid guide holes 837 are provided in the wall portion of the atomizing element housing 929, and at least one liquid guide hole 837 communicates with at least one air guide channel 836.
The atomizing element housing 929 is made of plastic, the liquid guide holes 837 are provided near the bottom of the atomizing element housing 929, and the grooves B are provided in the axial direction at the intermediate positions of the inner peripheral wall of the atomizing element housing 929 at each of the liquid guide holes 837, so that the air guide channels 836 are formed between the liquid guide element 200 and the atomizing element housing 929, and the air guide channels 836 communicate with the atomizing chamber 934 and the liquid guide holes 837 at the same time.
Preferably, the maximum inscribed circle diameter of the cross section of the air channel 836 is 0.05mm-0.3mm, the thickness of the liquid guiding element 200 is 0.5-1.2mm, the density is 0.12-0.25 g/cm 3, and the air guiding element is made by bonding bicomponent fibers of sheath-core structure, the sheath layer of the bicomponent fibers is polyethylene or Co-PET, and the core layer is polypropylene or PET. The aerosol bomb 800 of the present embodiment further includes a tubular condensate absorbing element 400 disposed in the aerosol passage 1303 for absorbing condensate in the aerosol to enhance the taste. The working principle of this embodiment is the same as that of embodiment 1.
In summary, the atomizing element and the aerosol bomb related by the invention can be widely applied to various aerosol dispersing devices. The atomizing element comprises an air guide channel between the liquid guide element and the atomizing element shell, and the air guide channel and the liquid guide element form a stable air-liquid exchange system, so that the atomizing stability is improved. The liquid guide element made of the two-component fiber has higher strength and toughness, is not easy to fold or break during installation, can be conveniently assembled in the atomization element, is easy to realize assembly automation, improves the efficiency and saves the cost. The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations be included in the scope of the following claims be embraced by the claims, which are intended to be included within the scope of the present invention.