WO2022161033A1

WO2022161033A1 - Atomizing core having bottom atomizing cavity

Info

Publication number: WO2022161033A1
Application number: PCT/CN2021/140053
Authority: WO
Inventors: 林光榕; 郑贤彬
Original assignee: 惠州市新泓威科技有限公司
Priority date: 2021-01-29
Filing date: 2021-12-21
Publication date: 2022-08-04
Also published as: CN112956749A

Abstract

An atomizing core having a bottom atomizing cavity, arranged in an atomizing seat of an electronic atomizing device, and comprising a shell (1), a liquid guide (2), and a heating piece (3). The shell (1) is provided with an upper opening (11), a lower opening (12), and sidewall through holes (10) in the middle; the liquid guide (2) is sleeved on the inner wall of the shell (1); the sidewall through holes (10) are blocked by the outer wall of the liquid guide (2); the liquid guide (2) is provided with a vertical middle through hole (21); the middle through hole (21) is communicated with the upper opening (11) and the lower opening (12) of the shell (1); the heating piece (3) is provided at the bottom of the liquid guide (2); a bottom cavity for constituting an atomizing cavity (16) is formed below the heating piece (3) at the lower end of the inside of the shell (1); an upper cavity for constituting a vapor outlet cavity (17) is formed above the liquid guide (2) at the upper end of the inside of the shell (1). Heating is uniform and a large amount of vapor is generated; small droplets or water vapor can be effectively prevented from being smoked into the mouth of a user and use experience of the user is improved; the shell (1) is provided, such that the liquid guide (2) made of a porous ceramic material inside the shell (1) can be protected and the service life of a product is prolonged.

Description

Atomizer core with bottom atomization chamber

technical field

The present invention relates to the technical field of electronic atomization equipment, and more particularly, the present invention relates to an atomizing core with an atomizing cavity at the bottom.

Background technique

Electronic atomization equipment generally includes a battery assembly and an atomizer. The battery assembly is installed with a battery that supplies power to the atomizer. The atomizer includes an atomizing core installed on the atomizing seat. The atomizing core can be powered on. The solution to be atomized, that is, the liquid to be atomized, is heated and atomized into a vapor mist or aerosol.

Electronic atomization equipment specifically includes electronic cigarette equipment for smoking cessation, medical liquid atomization equipment, etc. Its basic task is to provide a heating process to convert the liquid smoke, liquid medicine and other solutions stored in the electronic atomization equipment into vapor, mist, Aerosols, vapors, etc.

In the existing atomizing cores, one of the materials used as the liquid-conducting body is generally a long glass fiber rope or cotton rope, and the other is an atomizing core made of ceramics, and the heating materials used for heating are electric heating wires. , the heating wire is directly wound on the glass fiber rope or cotton rope or placed on the cylindrical ceramic inner wall. Due to the small contact area between the heating wire and the liquid conducting body, there are problems of small heating area, small atomization and uneven heating. In addition, the existing atomizing cores all need to be arranged in the atomizing cavity formed by the atomizing seat, and the structure of the atomizing cavity is not arranged on the atomizing core body, so the vapor mist formed after the atomization liquid is heated and evaporated Or the aerosol is directly carried upward by the air flow, and the small droplets that are not atomized or condensed are also easily entrained by the air flow directly upward and sucked out without hindrance, which cannot effectively prevent fogging. The existing atomizing core made of porous ceramics has poor strength due to the influence of sintering temperature and material, and is prone to breakage due to external force or immersion in the liquid to be atomized during use, resulting in damage or reduced fogging. effect.

technical problem

The purpose of the present invention is to provide an atomizing core with a bottom atomizing cavity in order to overcome the deficiencies of the above technologies.

technical solutions

The technical scheme of the present invention is realized as follows: an atomizing core with an atomizing cavity at the bottom, which is arranged on the atomizing seat of the electronic atomization device, includes a casing, a liquid conducting sheet and a heating sheet, and the casing is provided with an upper opening. , a lower opening and a side wall through hole, the liquid guide is sleeved on the inner wall of the casing, the side wall through hole is blocked by the liquid guide outer wall, the liquid guide is provided with a vertical middle through hole, the The middle through hole is communicated with the upper opening and the lower opening of the casing, the heat generating sheet is arranged at the bottom of the liquid guide, and the interior of the casing is located below the heat generating sheet with a bottom cavity for forming an atomization cavity , the interior of the casing is located above the liquid guide and is provided with an upper cavity for forming a mist outlet.

Preferably, it also includes electrode leads, the electrode leads are arranged at both ends of the heating sheet, and the electrode leads extend downward from the lower opening of the casing.

Preferably, the casing is made of a heat-resistant metal material or a heat-resistant dense ceramic material, and the liquid conducting liquid is made of a porous ceramic material.

Preferably, the materials constituting the casing, the liquid conducting and the heat generating sheet are placed in a mold and then sintered into one body.

Preferably, the liquid guiding portion is provided with a liquid suction convex portion located at the side wall through hole, and the liquid suction convex portion is blocked in the side wall through hole.

Preferably, a laterally protruding spacer is provided on the outer wall of the casing below the side wall through hole, and liquid filling holes are provided on both sides of the spacer.

Preferably, the lower section of the casing is larger than the upper section thereof, and the lower section of the liquid guide is larger than the upper section thereof.

Preferably, the casing is composed of an upper round tube and a lower square tube, and correspondingly, the liquid guide is composed of an upper cylinder and a lower cuboid.

Preferably, the casing is composed of an upper circular tube and a lower circular tube, and correspondingly, the liquid guide is composed of an upper cylindrical body and a lower cylindrical body.

Preferably, the heat generating sheet is disposed on the bottom surface of the liquid-conducting liquid or embedded in a position close to the bottom surface inside the liquid-conducting liquid.

Preferably, the heat-generating sheet is configured by a heat-generating resistive material such that a heat-generating paste is printed on the bottom of the conductive liquid.

Preferably, the heat-generating sheet is composed of a heat-generating sheet-shaped resistor, and the sheet-shaped resistor is etched into a uniformly distributed route with a middle through hole surrounding the liquid-conducting hole.

Preferably, the heating element is made of nickel-chromium, or tungsten wire, or silver alloy, or iron-chromium-aluminum material.

beneficial effect

The present invention adopts the heating sheet as the heating resistor for heating the atomizing core. Since the contacting area between the heating sheet and the conducting liquid is large, and the heating area is also large, the heating is uniform and the amount of atomization generated is large; That is, there is a structure with an atomization cavity under the heating plate, and the vapor or aerosol formed after the atomization liquid is heated and evaporated is led down to the atomization cavity and then exported upward, and the small droplets that are not atomized or condensed Then it drips or condenses downward, so that it is not easy to be directly entrained by the airflow and sucked out, which effectively prevents small droplets or water mist from being sucked into the user's mouth and improves the user's experience. The shell can protect the liquid conducting inside, so that the conducting liquid made of porous ceramic material is not easy to be broken and damaged, and the service life of the product is improved. And the shell made of metal material has good thermal conductivity, the liquid to be atomized can be quickly heated in use, and its fluidity can be enhanced, which is helpful to use the liquid to be atomized with high viscosity.

Description of drawings

Fig. 1 is the three-dimensional structure exploded view of the atomizing core of the first embodiment of the present invention;

Fig. 2 is the side view of the atomizing core of the first embodiment of the present invention;

Fig. 3 is the front view of the atomizing core of the first embodiment of the present invention;

Fig. 4 is the sectional view of the atomizing core of the first embodiment of the present invention;

Fig. 5 is the top view of the atomizing core of the first embodiment of the present invention;

Fig. 6 is the bottom view of the atomizing core of the first embodiment of the present invention;

Fig. 7 is the three-dimensional structure diagram of the upside-down atomizing core of the first embodiment of the present invention;

8 is an exploded view of the three-dimensional structure of the atomizing core of the second embodiment of the present invention;

Fig. 9 is the front view of the atomizing core of the second embodiment of the present invention;

Fig. 10 is the sectional view of the atomizing core of the second embodiment of the present invention;

Fig. 11 is the top view of the atomizing core of the second embodiment of the present invention;

FIG. 12 is an upside-down perspective structural view of the atomizing core according to the second embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

实施例1：Example 1:

As shown in Fig. 1-Fig. 7, the atomizing core with the bottom atomizing cavity of the present invention is installed on the atomizing seat of the atomizer (not shown in the drawings). The atomizing core is composed of a casing 1, a liquid conducting 2, a heating plate 3 and an electrode lead 4. The casing 1 is provided with an upper opening 11, a lower opening 12 and a side wall through hole 10 in the middle. The casing 1 is composed of an upper circular tube 13 and a lower part. The lower part of the casing 1, namely the square tube 14, has a cross-sectional area larger than that of the upper part, namely the round pipe 13; , the spacer 15 is laterally arranged on the outer wall of the casing 1 at the junction of the upper round pipe 13 and the lower square pipe 14 , and the two sides of the spacer 15 are provided with liquid filling holes 150 . The spacer 15 is convenient to install and fix the atomizing core on the atomizing seat (not shown in the figure) of the atomizer, and isolate the atomizing seat from the liquid storage chamber. Liquid filling holes 150 are provided on both sides of the separator 15, so that after the atomizing core is installed, the liquid to be atomized can be added to the liquid storage cavity (not shown in the figure) of the atomizer through the liquid filling holes 150.

The liquid guide 2 is arranged in the inner middle section of the housing 1 , and the liquid guide 2 is provided with a liquid suction convex portion 20 located at the side wall through hole 10 , and the liquid suction convex portion 20 is blocked in the side wall through hole 10 . The liquid suction convex portion 20 is blocked in the side wall through hole 10 , so that the casing 1 and the liquid guide 2 are fitted and combined with each other more closely, so as not to be loosened. The provision of the liquid suction protrusion 20 also facilitates the integral manufacture of the housing 1 and the liquid guide 2 . The side wall through hole 10 is connected to the liquid storage chamber of the atomizer, so that the liquid suction protrusion 20 can directly absorb and conduct the liquid to be atomized from the liquid storage chamber, and conduct the liquid to be atomized to the liquid guide 2 through the liquid guide 2 At the bottom of the device, the liquid to be atomized is brought into contact with the heating sheet 3. After the heating sheet 3 is energized, the heating sheet 3 generates heat to heat and evaporate the liquid to be atomized into a mist or aerosol. The liquid guide 2 is provided with a vertical middle through hole 21 to communicate with the upper opening 11 and the lower opening 12 of the housing. The liquid guide 2 is composed of an upper cylinder 22 and a lower cuboid 23. The cross section of the lower cuboid 23 of the liquid guide 2 is larger than that of the upper cylinder 22, which is convenient for expanding the atomization area.

The heat generating sheet 3 in this embodiment is closely attached to the bottom surface of the liquid guide 2 . In other embodiments, the heat generating sheet 3 can also be embedded in the liquid guide 2 near the bottom surface thereof. The heat generating sheet 3 can also be configured by a heat generating resistive material such that a heat generating paste is printed on the bottom surface of the conductive liquid 2 .

Electrode leads 4 are provided at both ends of the heating sheet 3 , and the electrode leads 4 extend downward from the lower opening 12 of the casing. The heating sheet 3 is composed of a sheet-like resistor that can generate heat, and the sheet-like resistor is etched to have evenly distributed routes around the middle through holes 21 for conducting the liquid, as shown in FIG. 6 .

The inner lower end of the casing 1 is located below the heating plate 3 with a bottom cavity for forming an atomizing cavity 16 , and the inner upper end of the casing 1 is located above the liquid guide 2 with an upper cavity for forming a mist outlet 17 . The atomizing chamber 16 is set at the inner bottom of the casing 1, and the vapor mist or aerosol formed by heating the atomizing liquid evaporates downward to the atomizing chamber, and then leads upward through the middle through hole 21 of the liquid guiding liquid 2, wherein no atomization is performed. Or the condensed small droplets drop down or condense, so that it is not easy to be directly entrained by the airflow and sucked out, which effectively prevents the small droplets or water mist from being sucked into the user's mouth and improves the user's experience. The cross-sectional area of the lower square tube 14 of the housing 1 is larger than the cross-sectional area of the upper circular tube 13. In accordance with the housing 1, the cross-section of the lower portion 23 of the liquid conducting 2 is larger than that of the upper portion 22, so that the The heating area increases, the volume of the atomization cavity 16 increases, and the amount of vapor mist or aerosol generated per unit time increases, so that the user experience and taste are better.

The casing 1 is made of heat-resistant metal material, and the liquid conducting liquid 2 is made of porous ceramic material. The casing 1 is made of metal material, which can better protect the liquid guide 2 made of porous ceramic material, so that the liquid guide 2 is not easily broken during use. In other embodiments, the housing 1 can also be made of heat-resistant dense ceramic material.

The heat-resistant dense ceramic material also has high strength and can effectively protect the conductive liquid 2 .

The materials of the shell 1, the liquid guide 2, the heating element 3 and the electrode lead 4 are placed in the mold and then sintered together, so that the atomizing core is formed as a whole, and has its own atomizing cavity, which is assembled on the atomizer. At the same time, the upper part only needs to be connected to the suction nozzle, and the lower part only needs to be installed on the atomizing seat, which reduces the number of spare parts and makes the installation simple, which is conducive to the realization of automatic production. In addition, after the atomizing core of the present invention is assembled to the atomizer, the shell 1 of the atomizing core is directly placed in the liquid storage chamber of the atomizer, and is in direct contact with the liquid to be atomized in the liquid storage chamber. The outer shell 1 of the atomizing core is made of metal material, so that when the heating element 3 is working, its excess heat can be quickly conducted to the outer shell 1 through the liquid conducting liquid 2, and the outer shell 1 can conduct the heat to the liquid to be atomized, so that The liquid to be atomized can be quickly heated during use to increase its fluidity, so the atomizing core of the present invention can use the liquid to be atomized with a relatively high viscosity.

Embodiments of the present invention

The present invention will be described in detail below through specific embodiments.

实施例2：Example 2:

As shown in FIGS. 8-12 , the atomizing core with the bottom atomizing cavity of the present invention is installed on the atomizing seat of the atomizer (not shown in the drawings). The atomizing core is composed of a casing 1, a liquid conducting 2, a heating plate 3 and an electrode lead 4. The casing 1 is provided with an upper opening 11, a lower opening 12 and a side wall through hole 10 in the middle and lower part. The lower circular tube 18 is formed, and the cross-sectional area of the lower circular tube 18 of the housing 1 is larger than the cross-sectional area of the upper circular tube 13 .

The liquid guide 2 is arranged in the inner middle and lower sections of the casing 1 , and the side wall through hole 10 is blocked by the outer wall of the liquid guide 2 inside the casing. The side wall through hole 10 is connected to the liquid storage cavity of the atomizer, so that the liquid guide 2 can directly absorb and conduct the liquid to be atomized from the liquid storage cavity through the side wall through hole 10, and the liquid to be atomized is passed through the liquid guide 2. The liquid is conducted to the bottom of the conducting liquid 2, so that the liquid to be atomized is in contact with the heating element 3. After the heating element 3 is energized, the heating element 3 generates heat to heat and evaporate the liquid to be atomized into a mist or aerosol. The liquid guide 2 is provided with a vertical middle through hole 21 to communicate with the upper opening 11 and the lower opening 12 of the housing. Compatible with the housing 1 , the liquid guide 2 is composed of an upper cylinder 22 and a lower disc 24 . The section of the lower disc 24 of the liquid guide 2 is larger than that of the upper cylinder 22 , which is convenient for expanding the atomization area.

The heating sheet 3 is closely attached to the bottom of the liquid conducting 2 , and electrode leads 4 are provided at both ends of the heating sheet 3 , and the electrode leads 4 extend downward from the lower opening 12 of the casing. The heating sheet 3 is composed of a sheet-like resistor that can generate heat, and the sheet-like resistor is etched to have a uniformly distributed route around the middle through hole 21 for conducting the liquid, as shown in FIG. 12 . The inner lower end of the casing 1 is located below the heating plate 3 with a bottom cavity for forming the atomization chamber 16 , and the inner upper end of the casing 1 is located above the liquid guide 2 with an upper cavity for forming the mist outlet 17 . The atomizing chamber 16 is set at the inner bottom of the casing 1, and the vapor mist or aerosol formed by heating the atomizing liquid evaporates downward to the atomizing chamber and then leads upwards through the middle through hole 21 of the liquid guiding liquid 2, wherein no atomization is performed. Or the condensed small droplets drop down or condense, so that it is not easy to be directly entrained by the airflow and sucked out, effectively preventing the small droplets or water mist from being sucked into the user's mouth and improving the user's experience. The cross-sectional area of the lower circular tube 14 of the above-mentioned housing 1 is larger than the cross-sectional area of the upper circular tube 13, and the cross-section of the lower portion 24 of the liquid guide 2 is larger than the cross-section of the upper portion 22, so that the heating area of the liquid guide 2 and the heating sheet 3 can be increased. Larger, the volume of the atomizing cavity 16 increases, and the amount of vapor mist or aerosol generated per unit time increases, so that the user experience and taste are better. In this embodiment, the casing 1 is made of a heat-resistant metal material, and the liquid conducting material 2 is made of a porous ceramic material. The casing 1 is made of heat-resistant metal material or heat-resistant dense ceramic material, which can better protect the liquid-conducting material 2 made of porous ceramic material, so that the liquid-conducting material 2 is not easily broken during use.

The materials of the shell 1, the liquid guide 2, the heating element 3 and the electrode lead 4 are placed in the mold and then sintered together, so that the atomizing core is formed as a whole, and has its own atomizing cavity, which is assembled on the atomizer. At the same time, the upper part only needs to be connected to the suction nozzle, and the lower part only needs to be installed on the atomizing seat, which reduces the number of spare parts and makes the installation simple, which is conducive to the realization of automatic production. In addition, after the atomizing core of the present invention is assembled to the atomizer, the shell 1 of the atomizing core is directly placed in the liquid storage chamber of the atomizer, and is in direct contact with the liquid to be atomized in the liquid storage chamber. The outer shell 1 of the atomizing core is made of metal material, so that when the heating element 3 is working, its excess heat can be quickly conducted to the outer shell 1 through the liquid conducting liquid 2, and the outer shell 1 can conduct the heat to the liquid to be atomized, so that The liquid to be atomized can be preheated or quickly heated during use to increase its fluidity, so the atomizing core of the present invention can use the liquid to be atomized with a relatively high viscosity.

Industrial Applicability

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

An atomizing core with an atomizing cavity at the bottom, which is arranged on an atomizing seat of an electronic atomization device, is characterized in that it includes a casing, a liquid conducting sheet and a heating sheet, and the casing is provided with an upper opening, a lower opening and a side wall a through hole, the liquid guide is sleeved on the inner wall of the casing, the side wall through hole is blocked by the liquid guide outer wall, the liquid guide is provided with a vertical middle through hole, and the middle through hole is connected to the The upper opening and the lower opening of the casing are connected, the heating sheet is arranged at the bottom of the liquid conducting sheet, the inside of the casing is located below the heating sheet and a bottom cavity is arranged to form an atomization cavity, and the inside of the casing is An upper cavity is arranged on the top of the guiding liquid to form a mist outlet.
The atomizing core with a bottom atomizing cavity according to claim 1, further comprising electrode leads, the electrode leads are arranged at both ends of the heating plate, and the electrode leads extend from the lower part of the casing. The opening protrudes downward.
The atomizing core with an atomizing cavity at the bottom according to claim 1, wherein the shell is made of a heat-resistant metal material or a heat-resistant dense ceramic material, and the liquid conducting liquid is made of a porous ceramic material.
The atomizing core with an atomizing cavity at the bottom according to claim 3, characterized in that, the materials constituting the casing, the liquid conducting and the heating sheet are placed in a mold and then sintered into one body.
The atomizing core with an atomizing cavity at the bottom according to claim 1, wherein the liquid-conducting convex portion is provided at the through hole of the side wall, and the liquid-absorbing convex portion is blocked on the side wall. sidewall vias.
The atomizing core with an atomizing cavity at the bottom according to claim 1, wherein the outer wall of the outer casing located below the through hole of the side wall is provided with a laterally protruding spacer, and two parts of the spacer are provided on the outer wall. There is a filling hole on the side.
The atomizing core with a bottom atomizing cavity according to claim 1, wherein the lower section of the casing is larger than the upper section thereof, and the lower section of the liquid guide is larger than the upper section thereof.
The atomizing core with an atomizing cavity at the bottom according to claim 7, wherein the outer shell is composed of an upper round tube and a lower square tube, and correspondingly, the liquid guide is composed of an upper cylinder and a lower cuboid. constitute.
The atomizing core with an atomizing cavity at the bottom according to claim 7, wherein the outer shell is composed of an upper circular tube and a lower circular tube, and correspondingly, the liquid guide is composed of an upper cylinder and a lower cylinder. body composition.
The atomizing core with an atomizing cavity at the bottom according to claim 1, wherein the heating element is arranged on the bottom surface of the liquid-conducting liquid or embedded in a position close to the bottom surface inside the liquid-conducting liquid.
The atomizing core with an atomizing cavity at the bottom according to claim 1, characterized in that, the heating sheet is configured by a heatable resistive material, and the heating paste is printed on the bottom of the conductive liquid.
The atomizing core with a bottom atomizing cavity according to claim 1, wherein the heating plate is composed of a heat-generating chip resistor, and the chip resistor is etched to have a middle surrounding the liquid conducting Through-hole and evenly distributed routing.
The atomizing core with a bottom atomizing cavity according to claim 1, wherein the heating element is made of nickel-chromium, or tungsten wire, or silver alloy, or iron-chromium-aluminum material.