KR20230030399A - Cartridge and device for generating aerosol with the same - Google Patents

Abstract

A cartridge and an aerosol generating device including the same are disclosed. The cartridge of the present disclosure comprises: a first chamber which stores liquid; a second chamber which has an inlet and an outlet; a wick which is located in the second chamber, and is connected to the first chamber; and a heater which heats the wick. The second chamber may include a curved surface forming at least a portion of the second chamber between the inlet and the outlet.

Description

Cartridge and aerosol generating device including the same {CARTRIDGE AND DEVICE FOR GENERATING AEROSOL WITH THE SAME}

The present disclosure relates to a cartridge and an aerosol generating device including the same.

Aerosol generating devices are for extracting certain components from a medium or substance through an aerosol. The medium may contain materials of various components. Substances included in the medium may be flavor substances of various components. For example, the substance included in the medium may include a nicotine component, an herbal component, and/or a coffee component. Recently, many studies on these aerosol generating devices have been conducted.

The present disclosure aims to solve the foregoing and other problems.

Another object may be to relieve the flow resistance caused by air passing through the interior of the cartridge.

Another object may be to uniformly entrain the air to the aerosol generated inside the cartridge.

Another purpose may be to prevent turbulence from occurring when air passes through the interior of the cartridge.

Another purpose may be to increase the quantity or density of entrained aerosols in the inhaled air.

According to one aspect of the present disclosure for achieving the above object, a first chamber for storing a liquid; a second chamber having an inlet and an outlet; a wick located in the second chamber and connected to the first chamber; The cartridge may include a heater for heating the wick, and the second chamber may include a curved surface forming at least a part of the second chamber between the inlet and the outlet. .

According to at least one of the embodiments of the present disclosure, flow resistance generated while air passes through the inside of the cartridge may be reduced.

According to at least one of the embodiments of the present disclosure, it is possible to prevent vortexes from occurring when air passes through the inside of the cartridge.

According to at least one of the embodiments of the present disclosure, air may be uniformly accompanied by aerosol generated inside the cartridge.

According to at least one of the embodiments of the present disclosure, the amount or density of aerosols entrained in the inhaled air may be increased.

Additional scope of applicability of the present disclosure will become apparent from the detailed description that follows. However, since various changes and modifications within the spirit and scope of the present disclosure can be clearly understood by those skilled in the art, it should be understood that the detailed description and specific examples such as preferred embodiments of the present disclosure are given as examples only.

1 to 24 are diagrams illustrating examples of aerosol generating devices according to embodiments of the present disclosure.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted.

The suffixes "module" and "unit" for components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinct from each other by themselves.

In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, the technical idea disclosed in this specification is not limited by the accompanying drawings, and all changes included in the spirit and technical scope of the present disclosure , it should be understood to include equivalents or substitutes.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

Hereinafter, the z-direction shown in the coordinate system may be defined as an upward direction, and a direction opposite to the z-direction may be defined as a downward direction. The x-axis direction may be defined as a posterior direction, and a direction opposite to the x-axis direction may be defined as a forward direction. The y-axis direction may be defined as the right direction, and the opposite direction may be defined as the left direction.

Referring to FIG. 1 , the aerosol generating device 100 may include at least one of a battery 10, a controller 20, a heater 30, and a cartridge 40. At least one of the battery 10, the controller 20, and the heater 30 may be disposed inside the case 110 of the aerosol generating device 100. The cartridge 40 may be detachably coupled to one side of the case 110 .

The case 110 may have an insertion space 50 into which the stick 200 is inserted. The insertion space 50 is open to the outside and may be extended long. The heater 30 may be formed around the insertion space 50 . The cartridge 40 and the insertion space 50 may be arranged side by side to face each other. The internal structure of the aerosol generating device 100 is not limited to that shown. The stick 200 may be inserted into the insertion space 50 and protrude out of the case 110 . The user may perform an inhalation operation with the stick 200 in the mouth.

The battery 10 may supply power so that at least one of the controller 20, the heater 30, and the cartridge 40 operates. The battery 10 may supply power necessary for the display, sensor, motor, etc. installed in the aerosol generating device 100 to operate.

The controller 20 may control the overall operation of the aerosol generating device 100. The controller 20 may control the operation of at least one of the battery 10 , the heater 20 and the cartridge 40 . The controller 20 may control the operation of the display, sensor, motor, etc. installed in the aerosol generating device 100. The controller 20 may check the state of each component of the aerosol generating device 100 to determine whether the aerosol generating device 100 is in an operable state.

The heater 30 may generate heat by power supplied from the battery 10 . The heater 30 may heat the stick 200 inserted into the aerosol generating device 100.

Cartridge 40 may generate an aerosol. The aerosol generated in the cartridge 40 may pass through the stick 200 inserted into the aerosol generating device 100 and be delivered to the user.

Referring to FIG. 2 , the cartridge 40 may include a first container 41 and a second container 42 . The second container 42 may be coupled to an upper side of the first container 41 . The cartridge inlet 414 may be formed by opening one side of the cartridge 40 . The cartridge inlet 414 may be formed by opening one side of the first container 41 . The cartridge inlet 414 may be formed by opening one side of the second container 42 . The cartridge inlet 414 may communicate with the outside. Air outside the cartridge 40 may be introduced into the cartridge 40 through the cartridge inlet 414 .

Referring to FIG. 3 , the first container 41 may have a first chamber C1 therein. The first chamber C1 may store liquid. The cartridge inlet 414 may be formed by opening an upper end of the first container 41 .

The second container 42 may have a second chamber C2 therein. The second chamber C2 may be separated from the first chamber C1. The second chamber C2 may be disposed below the first chamber C1.

The wick 61 may be installed inside the second chamber C2. The wick 61 may be connected to the first chamber C1. The wick 61 may receive the liquid stored in the first chamber C1 from the first chamber C1.

The heater 62 may be installed inside the second chamber C2. The heater 62 may wind the wick 61 . The heater 62 may heat the wick 61 . When the heater 62 heats the wick 61 supplied with the liquid, aerosol may be generated around the wick 61 in the second chamber C2 .

The chamber inlet 542 may be formed by opening one side of the second chamber C2. The chamber outlet 543 may be formed by opening the other side of the second chamber C2. The chamber inlet 542 may communicate with the second chamber C2. The chamber outlet 543 may communicate with the second chamber C2. The chamber inlet 542 and the chamber outlet 543 may be disposed to face each other with respect to the second chamber C2. The chamber inlet 542 and the chamber outlet 543 may be disposed to face each other around the wick 61 . Chamber inlet 542 may be referred to as inlet 542 . The chamber outlet 543 may be referred to as an outlet 543 .

The inlet channel 541 may be formed between the chamber inlet 542 and the cartridge inlet 414 . The inlet channel 541 may connect the chamber inlet 542 and the cartridge inlet 414 . The inlet channel 541 may extend downward from the cartridge inlet 414 toward the chamber inlet 542 . The inlet channel 541 may be separated from the first chamber C1. The inflow channel 541 may be separated from the second chamber C2. The inlet channel 541 may be formed parallel to the first chamber C1. In the vicinity of the chamber inlet 542 , the inlet channel 541 may be bent toward the chamber inlet 542 to communicate with the chamber inlet 542 .

The discharge channel 544 may be formed by opening the second container 42 . The discharge channel 544 may communicate with the chamber outlet 543 . The discharge channel 544 may communicate with the outside of the cartridge 40 . The discharge channel 544 may be opened in the forward and backward directions. The discharge channel 544 may extend long in the front-rear direction. The discharge port 512 may be formed so that the front side of the second container 42 protrudes forward. The discharge channel 544 is formed inside the discharge port 512 and may be surrounded by the discharge port 512 .

Air outside the cartridge 40 may be introduced into the second chamber C2 by sequentially passing through the cartridge inlet 414, the inlet channel 541, and the chamber inlet 542. Air introduced into the second chamber C2 may flow out of the cartridge 40 by sequentially passing through the chamber outlet 543 and the discharge channel 544 . The air introduced into the second chamber C2 may be accompanied by an aerosol.

Referring to FIGS. 4 and 5 , the chamber inlet 542 may be opened in the forward and backward directions. The chamber inlet 542 may be opened toward the wick 61 . The chamber outlet 543 may be opened in the forward and backward directions. The chamber outlet 543 may be opened toward the wick 61 . The wick 61 may be disposed between the chamber inlet 542 and the chamber outlet 543 . The chamber inlet 542 and the chamber outlet 543 are disposed side by side with the wick 61 interposed therebetween, and may face each other.

The wick 61 may extend long in the left and right directions. The wick 61 may elongate in a direction crossing the direction in which the chamber inlet 542 is opened. The wick 61 may elongate in a direction crossing the direction in which the chamber outlet 543 is opened. The wick 61 may have an elongated cylindrical shape. A cross section of the wick 61 may be circular.

The center line L may be defined as an imaginary line extending between the center of the chamber inlet 542 and the center of the chamber outlet 543 . The center line L may extend long from the chamber inlet 542 to the chamber outlet 543 . The wick 61 may overlap the center line (L). The wick 61 may extend long in a direction crossing the longitudinal direction of the center line (L). The center of the wick 61 may coincide with the center line (L) or may be adjacent to the center line (L).

A horizontal width W2 of the chamber inlet 542 may be greater than a vertical width W1. The diameter of the chamber inlet 542 may be longer in the longitudinal direction of the wick 61 . A horizontal width W4 of the chamber outlet 543 may be greater than a vertical width W3. The diameter of the chamber outlet 543 may be longer in the longitudinal direction of the wick 61 . The chamber inlet 542 and/or the chamber outlet 543 may be opened long in the longitudinal direction of the wick 61 facing the wick 61 .

A vertical width W1 of the chamber inlet 542 and a vertical width W3 of the chamber outlet 543 may be the same or similar to each other. The left-right width W2 of the chamber inlet 542 and the left-right width W4 of the chamber outlet 543 may be the same or similar to each other.

The width W0 of the wick 61 may be the same as or similar to the width W1 of the chamber inlet 542 in the vertical direction. The width W0 of the wick 61 may be the same as or similar to the width W3 of the chamber outlet 543 in the vertical direction.

At least one side of the second chamber C2 may have a curved surface formed to be curvature. The curved surface may cover or cover at least a portion of the second chamber C2. The curved surface may constitute at least a part of the outer shape of the second chamber C2.

The second chamber C2 may have an inlet curved surface 52 . The inlet curved surface 52 may be formed to be curved around the chamber inlet 542 . The inlet curved surface 52 may cover one side of the second chamber C2 around the chamber inlet 542 . A rear end of the inlet curve surface 52 may be connected to the circumference of the chamber inlet 542 . The inlet curved surface 52 may extend from the circumference of the chamber inlet 542 to the outside of the circumference of the chamber inlet 542 toward the front. The inlet curved surface 52 may have a bowl shape surrounding the rear space of the wick 61 . The inlet curved surface 52 may cover the rear side of the wick 61 . The inlet curve surface 52 may be formed as a continuous surface.

The second chamber (C2) may have a discharge curve surface (53). The discharge curve surface 53 may be formed to be curved around the chamber discharge port 543 . The discharge curve surface 53 may cover the other side of the second chamber C2 around the chamber discharge port 543 . A front end of the discharge curve surface 53 may be connected to the circumference of the chamber discharge port 543 . The discharge curve surface 53 may extend from the circumference of the chamber outlet 543 toward the rear to the outside around the chamber outlet 543 . The discharge curve surface 53 may have a bowl shape surrounding the front space of the wick 61 . The discharge curve surface 53 may cover the front side of the wick 61 . The discharge curve surface 53 may be formed as a continuous surface.

The second chamber C2 may have a connection surface 55 . The connection surface 55 may be formed between the front end of the inlet curve surface 52 and the rear end of the discharge curve surface 53 . The connection surface 55 may connect the front end of the inlet curve surface 52 and the rear end of the discharge curve surface 53 . The connection surface 55 may form a circumference of a plane in the up, down, left, and right directions of the second chamber C2. The connection surface 55 may extend in the front-rear direction. The connecting surface 55 may have no curvature or very little curvature.

The second chamber C2 may be surrounded by an inlet curve surface 52, an outlet curve surface 53, and a connection surface 55. The rear of the second chamber C2 may be covered by the inlet curved surface 52 . The front of the second chamber C2 may be covered by the discharge curve surface 53. The connection surface 55 may cover the upper and lower peripheries of the wick 61 . The connection surface 55 may cover the left and right peripheries of the wick 61 .

The inlet channel 541 may communicate with the chamber inlet 542 . The inflow channel 541 may extend in a direction crossing the direction in which the chamber inlet 542 is opened. The inlet channel 541 extends vertically and may be bent toward the chamber inlet 542 near the chamber inlet 542 . The inlet channel surface 511 may surround the inlet channel 541 . The inlet channel surface 511 may be bent and connected to the circumference of the chamber inlet 542 and the inlet curved surface 52 .

The channel curve surface 513 may be formed at a portion where the inlet channel surface 511 is bent. The channel curve surface 513 may be connected to the inlet curve surface 52 .

The inlet curve surface 52 may be integrally connected to the inlet channel surface 511 . The inlet curve surface 52 and the inlet channel surface 511 may form a continuous surface. The discharge curve surface 53 may be integrally connected to the inner surface of the discharge port 512 . The discharge curve surface 53 and the inner surface of the discharge port 512 may form a continuous surface. The inner surface of the discharge port 512 may be referred to as a discharge channel surface 512 .

Referring to FIGS. 6 and 7 , the inlet curve surface 52 may include a first inlet curve surface 521 and a second inlet curve surface 522 .

The first inlet curved surface 521 may surround the chamber inlet 542 . The first inlet curved surface 521 may extend along the circumference of the chamber inlet 542 . The chamber inlet 542 may be formed inside the first inlet curved surface 521 . The rear end of the first inlet curve surface 521 may be connected to the inlet channel surface 511 . The rear end of the first inlet curve surface 521 may be connected to the channel curve surface 513 .

The first inlet curved surface 521 may extend from the rear of the chamber inlet 542 toward the front so that the circumference of the chamber inlet 542 gradually widens. The first inflow curve surface 521 may have a tapered shape. The first inflow curve surface 521 may be formed to be curvature. The first inlet curved surface 521 may form a center of curvature outside the chamber inlet 542 and/or the second chamber C2. The first inflow curve surface 521 may be formed to be convex from the outside to the inside of the first inlet curve surface 521 . The first inflow curve surface 521 may have a bell-mouth shape.

The rear end of the second inlet curve surface 522 may be connected to the front end of the first inlet curve surface 521 . The second inlet curve surface 522 may form a continuous surface with the first inlet curve surface 521 . An inflection point and/or an inflection surface may be formed between the second inflow curve surface 522 and the first inflow curve surface 521 . The front end of the second inflow curve surface 522 may be connected to the rear end of the connection surface 55 .

The second inlet curve surface 522 may extend from the front end of the first inlet curve surface 521 toward the front so that the second chamber C2 gradually widens. The second inflow curve surface 522 may have a tapered shape. The second inflow curve surface 522 may be formed to be curvature. The second inflow curve surface 522 may form a center of curvature toward the inside of the second chamber C2. The second inflow curve surface 522 may be formed to be convex from the inside to the outside of the second inlet curve surface 522 . The center of curvature of the second inlet curve surface 522 may be adjacent to or overlap the wick 61 .

The channel curve surface 513 can smoothly guide the flow of air toward the chamber inlet 542 and the second chamber C2, which are directional directions, while reducing flow resistance. Air may flow from the inlet channel 541 to the chamber inlet 542 and be introduced into the second chamber C2. Air flowing through the inlet channel 541 may be guided to the chamber inlet 542 and the second chamber C2 along the inlet channel surface 511 and the channel curve surface 513 .

Accordingly, resistance to air flowing from the inlet channel 541 to the chamber inlet 542 and flow loss may be reduced.

The first inlet curved surface 521 can gently guide the air to diffuse around the wick 61 while reducing flow resistance. Air passing through the chamber inlet 542 may diffuse from the chamber inlet 542 toward the wick 61 along the first inlet curved surface 521 around the chamber inlet 542 .

The second inlet curved surface 522 may gently guide air to pass around the wick 61 while reducing flow resistance. Air introduced from the chamber inlet 542 may flow between the wick 61 and the second inlet curved surface 522 along the second inlet curved surface 522 . The second inlet curved surface 522 may collect air discharged from the chamber inlet 542 and diffused in the direction of flow. The second inlet curved surface 522 can prevent a decrease in flow efficiency or vortex, which occurs when the air flowing from the chamber inlet 542 toward the periphery of the wick 61 is abruptly turned.

Accordingly, diffusion efficiency of the air flowing from the chamber inlet 542 to the second chamber C2 may be improved. In addition, diffusion efficiency of air around the wick 61 can be increased. In addition, it is possible to prevent vortexes from being generated around the wick 61 or around the corner of the second chamber C2. Also, the air can entrain the aerosol more uniformly. Also, the amount by which the air entrains the aerosol can be improved.

Referring to FIGS. 6 and 8 , the discharge curve surface 53 may include a first discharge curve surface 531 and a second discharge curve surface 532 .

The first discharge curve surface 531 may surround the chamber discharge port 543 . The first discharge curve surface 531 may extend along the circumference of the chamber discharge port 543 . The chamber discharge port 543 may be formed inside the first discharge curve surface 531 . A front end of the first discharge curve surface 531 may be connected to the discharge channel surface 512 .

The first discharge curve surface 531 may extend from the front of the chamber discharge port 543 toward the rear side so that the circumference of the chamber discharge port 543 gradually widens. The first discharge curve surface 531 may gradually narrow from the rear of the chamber discharge port 543 toward the front. The first discharge curve surface 531 may have a tapered shape. The first discharge curve surface 531 may be formed to be curvature. The first discharge curve surface 531 may form a center of curvature outside the chamber outlet 543 and/or the second chamber C2. The first discharge curve surface 531 may be formed to be convex from the outside to the inside of the first discharge curve surface 531 . The first discharge curve surface 531 may have a bell-mouth shape.

The front end of the second discharge curve surface 532 may be connected to the rear end of the first discharge curve surface 531 . The second discharge curve surface 532 may gradually narrow toward the front of the second chamber C2. The second discharge curve surface 532 may form a continuous surface with the first discharge curve surface 531 . An inflection point and/or an inflection surface may be formed between the second discharge curve surface 532 and the first discharge curve surface 531 . The rear end of the second discharge curve surface 532 may be connected to the front end of the connection surface 55 .

The second discharge curve surface 532 may extend from the rear end of the first discharge curve surface 531 toward the rear so that the second chamber C2 gradually widens. The second discharge curve surface 532 may have a tapered shape. The second discharge curve surface 532 may be formed to be curvature. The second discharge curve surface 532 may form a center of curvature toward the inside of the second chamber C2. The second discharge curve surface 532 may be formed to be convex from the inside to the outside of the second discharge curve surface 532 . The center of curvature of the second discharge curve surface 532 may be adjacent to or overlap the wick 61 .

The second discharge curve surface 532 may gently guide air to flow into the chamber outlet 543 while passing around the wick 61 while reducing flow resistance. Air passing around the wick 61 may flow between the wick 61 and the second discharge curve surface 532 along the second discharge curve surface 532 . The second discharge curve surface 532 may collect air passing around the wick 61 to the periphery of the chamber outlet 543, which is the direction of flow. The second discharge curve surface 532 can prevent a decrease in flow efficiency or vortex, which is caused by the air flowing from the periphery of the wick 61 to the chamber discharge port 543 abruptly turning.

The first discharge curve surface 531 may gently guide air to gather from the periphery of the wick 61 to the chamber outlet 543 while reducing flow resistance. Air passing around the wick 61 may be collected inside the chamber outlet 543 along the first discharge curve surface 531 . The first discharge curve surface 531 is caused by collision resistance between air flowing into the chamber outlet 543 from the periphery of the chamber outlet 543, or when the air flowing into the chamber outlet 543 is abruptly deflected. It is possible to reduce flow efficiency or prevent vortex flow.

Accordingly, flow efficiency of air flowing from the second chamber C2 or the periphery of the wick 61 to the chamber inlet 543 may be improved. In addition, it is possible to prevent vortexes from being generated around the wick 61 or around the corner of the second chamber C2. Also, the air can entrain the aerosol more uniformly. Also, the amount by which the air entrains the aerosol can be improved.

Referring to Figures 4 and 9, the wick 61 may be elongated in a direction crossing the center line (L). The wick 61 may be disposed perpendicular to the center line (L). The wick 61 may be disposed to elongate left and right between the chamber inlet 542 and the chamber outlet 543 .

The chamber inlet 542 may open toward the wick 61 in the forward and backward directions. The chamber inlet 542 may be opened in a direction crossing the longitudinal direction of the wick 61 . The chamber inlet 542 may have a longer width W2 along the longitudinal direction of the wick 61 . The chamber inlet 542 may have a width W2 longer in the left-right direction than the width W1 in the vertical direction.

The chamber outlet 543 may be opened in the forward and backward directions toward the wick 61 . The chamber outlet 543 may be opened in a direction crossing the longitudinal direction of the wick 61 . The chamber outlet 543 may have a longer width W4 along the longitudinal direction of the wick 61. The chamber outlet 543 has a longer width W4 in the left-right direction than the width W3 in the vertical direction. can be formed

The inlet curve surface 52 may gradually expand from the chamber inlet 542 toward both ends of the wick 61 disposed in the second chamber C2. The width W2 of the first inlet curved surface 521 in the left-right direction may gradually expand from the rear end of the chamber inlet 542 toward the front end. The second inlet curve surface 522 may gradually expand in width from the chamber inlet 542 toward the periphery of both ends of the wick 61 .

Accordingly, the air introduced into the second chamber C2 from the chamber inlet 542 can be uniformly diffused toward the elongated wick 61 . In addition, flow resistance of air flowing from the chamber inlet 542 to the periphery of both ends of the wick 61 is reduced, and flow efficiency can be improved by preventing vortex generation. Also, the amount by which the air entrains the aerosol can be improved.

The discharge curve surface 53 may gradually narrow from the periphery of both ends of the wick 61 disposed in the second chamber C2 toward the chamber outlet 543. The width W4 of the first discharge curve surface 531 in the left-right direction may gradually decrease from the rear end to the front end of the chamber discharge port 543 . The second discharge curve surface 532 may gradually narrow in width from the periphery of both ends of the wick 61 toward the chamber outlet 543 .

Accordingly, the air flowing from the second chamber C2 to the chamber outlet 543 can be uniformly collected from the long-extended wick 61 . In addition, around both ends of the wick 61, flow resistance of air toward the chamber discharge port 543 is reduced, and flow efficiency can be improved by preventing vortex generation. Also, the amount by which the air entrains the aerosol can be improved.

Referring to FIGS. 10 to 13 , the curved surface may cover only a part of the second chamber C2. The curved surface may be formed around the chamber outlet 543 , and the periphery of the chamber inlet 542 may be covered by the flat surface 56 . The curved surface is formed around the lower side of the chamber outlet 543, and the rest may be covered by the flat surface 56. The curved surface may be formed around the upper side of the chamber outlet 543, and the rest may be covered by the flat surface 56.

The curved surface may be formed around the chamber inlet 542 , and the periphery of the chamber outlet 543 may be covered by the flat surface 56 . The curved surface may be formed around the lower side of the chamber inlet 542, and the rest may be covered by the flat surface 56. The curved surface is formed on the upper side of the chamber inlet 542, and the rest may be covered by the flat surface 56.

A curved surface may cover one side of the second chamber C2 and the other may be covered by the flat surface 56 . The position where the curved surface is disposed is not limited to the above-described embodiment. Plane 56 may be entirely flat or may be mostly flat.

Referring to FIG. 14 , the second chamber C2 may have a spherical shape. The second inflow curve surface 522 and the second discharge curve surface 532 may be connected to each other. The curvature of the second inlet curve surface 522 and the curvature of the second discharge curve surface 532 may be the same or similar to each other. The center of curvature of the second inlet curve surface 522 and the center of curvature of the second outlet curve surface 532 may be the same or adjacent to each other. The center of curvature of the second inlet curve surface 522 and the center of curvature of the second discharge curve surface 532 may be the same as or adjacent to the center of the wick 61 .

Accordingly, it is possible to prevent a vortex caused by the air flow from occurring inside the second chamber C2. In addition, flow resistance to air flowing around the wick 61 can be reduced and flow efficiency can be improved. In addition, the amount of aerosol entrained by the air can be increased.

Referring to FIG. 15 , the second chamber C2 may be formed in an ellipsoid shape. The second inflow curve surface 522 and the second discharge curve surface 532 may be connected to each other. The second inflow curve surface 522 and the discharge curve surface 532 may be convex outward from the second chamber C2. The longitudinal length D1 of the second chamber C2 may be longer than the vertical length D2 of the second chamber C2. The second chamber C2 may be formed longer from the chamber inlet 542 toward the chamber outlet 543 . The second chamber (C2) may be formed longer in the flow direction of the air. Upper and lower ends of the second chamber C2 may be disposed closer to the wick 61 .

Accordingly, the straightness of the air passing through the second chamber C2 is improved, and the flow efficiency of the air as it turns along the path may be reduced. In addition, inside the second chamber C2, the air flows closer to the wick 61, and the amount or density of the aerosol in the air accompanying the aerosol can be increased.

Referring to FIG. 16 , the lower portion of the channel curve surface 513 and the second inlet curve surface 522 may be integrally connected. A lower portion of the channel curve surface 513 and the second inlet curve surface 522 may form a continuous surface. The channel curve surface 513 and the second inlet curve surface 522 may be convex to the outside of the second chamber C2. The curvature of the channel curve surface 513 and the curvature of the lower portion of the second inlet curve surface 522 connected to the channel curve surface 513 may be the same. The curvature of the lower part of the second chamber C2 may be smaller than the curvature of the upper part of the second chamber C2. An inflection point and/or an inflection surface may not be formed between the second channel curve surface 513 and the second inlet curve surface 522 .

Accordingly, the air introduced into the second chamber C2 through the chamber inlet 542 from the inlet channel 541 does not turn, and the straightness of the flow can be improved. In addition, since the air does not collide with a wall formed around the chamber inlet 542, resistance to flow may be reduced and air flow efficiency may be improved.

Referring to FIG. 17 , the first inflow curve surface 521 may be absent. The first discharge curve surface 531 may be absent. Around the chamber inlet 542 , the rear side of the second chamber C2 may be covered by the second inlet curved surface 522 . Around the chamber discharge port 543 , the front side of the second chamber C2 may be covered by the second discharge curve surface 532 .

Referring to FIG. 18 , the width of the first inlet curve surface 521 may gradually increase from the rear end of the chamber inlet 542 toward the front end. The width W1 of the rear end of the first inlet curve surface 521 may be the same as the wick 61 or similar to the width W0 of the wick 61 . The width W10 of the front end of the first inflow curve surface 521 may be greater than the width W0 of the wick 61. The front end of the first inflow curve surface 521 may be connected to the rear end of the connection surface 55 . The first inlet curved surface 521 may have a bell mouth shape extending toward the wick 61 .

The width of the first discharge curve surface 531 may gradually become narrower from the rear end of the chamber discharge port 543 toward the front end. The width W3 of the front end of the first discharge curve surface 531 may be the same as or similar to the wick 61 . The width W30 of the rear end of the first discharge curve surface 531 may be greater than the width W0 of the wick 61 . The rear end of the first discharge curve surface 531 may be connected to the front end of the connection surface 55 . The first discharge curve surface 531 may have a bell mouth shape extending toward the wick 61 .

Referring to FIG. 19 , an inlet slope 523 may be formed around the chamber inlet 542 . The inflow slope 523 may gradually expand toward the front. The inflow slope 523 may gradually expand toward the wick 61 . The inlet inclined surface 523 may be inclined outward toward the wick 61 . The inflow slope 523 may have a truncated cone shape or a truncated elliptical cone shape. The inflow slope 523 may not have a curvature. The inlet slope 523 may be formed between the first inlet curve surface 521 and the second inlet curve surface 522 . The inlet inclined surface 523 may connect between the first inlet curve surface 521 and the second inlet curve surface 522 .

The discharge slope 533 may be formed around the chamber outlet 543 . The discharge slope 533 may gradually narrow toward the front. The discharge slope 533 may gradually expand toward the wick 61 . The discharge slope 533 may be inclined outward toward the wick 61 . The discharge slope 533 may have a truncated shape such as a truncated cone or an elliptical truncated cone. The discharge slope 533 may not have a curvature. The discharge slope 533 may be formed between the first discharge curve surface 531 and the second discharge curve surface 532 . The discharge slope 533 may connect between the first discharge curve surface 531 and the second discharge curve surface 532 .

Referring to FIGS. 20 to 23 , the introduction channel 5410 may be in communication with the outside of the cartridge 40 by opening one side of the second container 42 . The inlet channel 5410 may communicate with the rear end of the chamber inlet 542 . The intake channel 5410 may not be bent. The inflow channel 5410 may be opened in the forward and backward directions. The inflow channel 5410 may extend long in the forward and backward directions. The inlet channel 5410 may be formed parallel to the outlet channel 544 . The inlet channel 5410 and the outlet channel 544 may face each other.

Accordingly, the length of the passage flowing into the second chamber C2 from the outside of the cartridge 40 may be shortened, and the suction force required for the user to suck air may be reduced. In addition, when the air flows from the inlet channel 5410 toward the chamber inlet 542, the air does not turn, and the straightness of the air flow is improved inside the cartridge 40, so that the flow efficiency can be improved.

Referring to FIG. 24 , the baffle 58 may be installed in the chamber inlet 542 . The baffle 58 may be installed between the second chamber C2 and the inflow channel 541 . The baffle 58 may have a plurality of holes. The baffle 58 blocks the chamber inlet 542 and has a plurality of holes so that the second chamber C2 and the inlet channel 541 communicate with each other. The baffle 58 may have a perforated plate or mesh shape. Air may be introduced into the second chamber C2 through the baffle 58 from the introduction channel 541 . The baffle 58 can even out the flow rate of air introduced into the second chamber C2.

Accordingly, air can be evenly diffused from the chamber inlet 542 to the second chamber C2 and the surroundings of the wick 61 . In addition, the amount or density of the aerosol entrained by the air may be increased.

Referring to Figures 1 to 24, the cartridge 40 according to an aspect of the present disclosure, a first chamber (C1) for storing a liquid; a second chamber (C2) having an inlet (542) and an outlet (543); wicks 61 and 61 located in the second chamber C2 and connected to the first chamber C1; And, a heater 62 for heating the wick 61 and 61 is included, and the second chamber C2 is: Between the inlet 542 and the outlet 543, the second chamber C2 It may include a curved surface forming at least a part of.

According to another aspect of the present disclosure, the second chamber (C2) forms the second chamber (C2) around the outlet 543, and the discharge curve surface 53 formed to be curved can include

According to another aspect of the present disclosure, the discharge curve surface 53 surrounds the discharge port 543 and forms a center of curvature to the outside of the second chamber C2, and the second chamber ( C2) may include a first discharge curve surface 531 that gradually narrows from the inside toward the outside.

According to another aspect of the present disclosure, the first discharge curve surface 531 may have a bell-mouth shape.

According to another aspect of the present disclosure, the discharge curve surface 53 is formed convexly from the inside to the outside of the second chamber C2, and the discharge port 543 from the second chamber C2. ) It may include a second discharge curve surface 532 that gradually narrows in a direction toward.

According to another aspect of the present disclosure, the discharge curve surface 53 surrounds the discharge port 543 and forms a center of curvature to the outside of the second chamber C2, and the discharge port 543 a first discharge curve surface 531 gradually narrowing from the inside to the outside of the; And it is formed convexly from the inside to the outside of the second chamber C2, and gradually narrows in a direction from the second chamber C2 toward the discharge port 543, and the first discharge curve surface 531 and It may include a second discharge curve surface 532 connected to form a continuous surface.

According to another aspect of the present disclosure, the second chamber (C2) forms the second chamber (C2) around the inlet 542, and the inlet curve surface 52 formed to be curved can include

According to another aspect of the present disclosure, the inlet curve surface 52 surrounds the inlet 542 and forms a center of curvature to the outside of the second chamber C2, and the second chamber ( C2) may include a first inflow curve surface 521 that gradually expands from the outside toward the inside.

According to another aspect of the present disclosure, the first inflow curve surface 521 may have a bell mouth shape.

According to another aspect of the present disclosure, the inlet curve surface 52 is formed to be convex from the inside to the outside of the second chamber C2, and from the inlet 542 to the second chamber C2. ) It may include a second inlet curved surface 522 that gradually expands in a direction toward.

According to another aspect of the present disclosure, the inlet curve surface 52 surrounds the inlet 542 and forms a center of curvature to the outside of the second chamber C2, and the second chamber ( a first inlet curve surface 521 gradually narrowing from the inside to the outside of C2); And it is formed convexly from the inside to the outside of the second chamber C2, gradually expands in a direction from the inlet 542 toward the second chamber C2, and is connected to the first inlet curve surface 521. It may include a second inlet curved surface 522 forming a continuous surface.

According to another aspect of the present disclosure, the wick 61 is disposed to extend long to one side between the inlet 542 and the outlet 543, and the inlet 542 has the It opens toward the wick 61 in a direction crossing the longitudinal direction of the wick 61, and may have a longer width W2 along the longitudinal direction of the wick 61.

According to another aspect of the present disclosure, the outlet 543 is opened toward the wick 61 in a direction crossing the longitudinal direction of the wick 61, and the length of the wick 61 The width W4 may be formed longer along the direction.

According to another aspect of the present disclosure, the second chamber C2 gradually expands from the inlet 542 toward the periphery of both ends of the wick 61 to form the second chamber C2. It may include an inlet curve surface 52 that does.

According to another aspect of the present disclosure, the second chamber C2 is gradually narrowed from the periphery of both ends of the wick 61 toward the outlet 543 to form the second chamber C2. It may include a discharge curve surface 53 that does.

According to another aspect of the present disclosure, the second chamber C2 may have a spherical shape.

According to another aspect of the present disclosure, the second chamber C2 may have an ellipsoidal shape extending from the inlet 542 toward the outlet 543 .

According to another aspect of the present disclosure, the cartridge 40 extends long in a direction crossing the direction in which the inlet 542 is opened, and is bent toward the inlet 542 so that the inlet 542 ) and an inflow channel 541 in communication with; and a channel curve surface 513 that is curved at the bent portion of the inlet channel 541 and covers one side of the inlet channel 541 .

According to another aspect of the present disclosure, the second chamber (C2) forms the second chamber (C2) around the inlet 542, and to the inside of the second chamber (C2). It may include a second inlet curve surface 522 having a portion forming a center of curvature and being connected to the channel curve surface 513 to form a continuous surface.

According to another aspect of the present disclosure, in the cartridge 40, the inlet 542 and the outlet 543 are opened to face each other with the wick 61 interposed therebetween, and the inlet ( 542) and the outside in communication, and may further include an inlet channel 541 extending in one direction toward the wick 61.

According to another aspect of the present disclosure, the cartridge 40 may further include a baffle 58 installed at the inlet 542 and having a plurality of holes.

Another cartridge 40 according to another aspect of the present disclosure includes a first chamber C1 for storing a liquid; a second chamber (C2) having an inlet 542 and an outlet 543; a wick 61 located in the second chamber C2 and connected to the first chamber C1; And, it includes a heater 62 for heating the wick 61, and the second chamber C2: at least one of the inlet 542 and the outlet 543 from the periphery of the wick 61 It may include a surface forming the second chamber C2 while gradually narrowing toward the .

Certain or other embodiments of the present disclosure described above are not mutually exclusive or distinct from each other. Certain embodiments or other embodiments of the present disclosure described above may be combined or combined in their respective components or functions (Certain embodiments or other embodiments of the disclosure described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the disclosure described above may be combined with another or combined with each other in configuration or function).

For example, configuration A described in a specific embodiment and/or drawing may be combined with configuration B described in another embodiment and/or drawing. That is, even if the coupling between components is not directly described, it means that coupling is possible except for cases where coupling is impossible (For example, a configuration "A" described in one embodiment of the disclosure and the drawings). and a configuration "B" described in another embodiment of the disclosure and the drawings may be combined with each other. Namely, although the combination between the configurations is not directly described, the combination is possible except in the case where it is described that the combination is impossible).

The above detailed description should not be construed as limiting in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention (although embodiments have been described with reference to a number of illustrative embodiments Its, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure.More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims.In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art).

Claims (21)

a first chamber for storing liquid;
a second chamber having an inlet and an outlet;
a wick located in the second chamber and connected to the first chamber; and,
Including a heater for heating the wick,
The second chamber is:
and a curved surface forming at least a portion of the second chamber between the inlet and the outlet. According to claim 1,
The second chamber,
The cartridge forms the second chamber in the periphery of the outlet and includes a curved discharge surface. According to claim 2,
The discharge curve surface,
A cartridge comprising a first discharge curve surface surrounding the discharge port, forming a center of curvature toward the outside of the second chamber, and gradually narrowing from the inside to the outside of the second chamber. According to claim 3,
The first discharge curve surface,
A cartridge having a bell-mouth shape. According to claim 2,
The discharge curve surface,
A cartridge comprising a second discharge curve surface convexly formed from the inside to the outside of the second chamber and gradually narrowing in a direction from the second chamber toward the discharge port. According to claim 2,
The discharge curve surface,
a first discharge curve surface surrounding the discharge port, forming a center of curvature toward the outside of the second chamber, and gradually narrowing from the inside to the outside of the discharge port; and
The second discharge curve surface is convexly formed from the inside of the second chamber toward the outside, gradually narrows in a direction from the second chamber toward the discharge port, and is connected to the first discharge curve surface to form a continuous surface. Cartridge containing a. According to claim 1,
The second chamber,
The cartridge forms the second chamber in the periphery of the inlet and includes an inlet curved surface formed to be curvature. According to claim 7,
The inflow curve surface,
A cartridge including a first inlet curve surface surrounding the inlet, forming a center of curvature toward the outside of the second chamber, and gradually extending from the outside to the inside of the second chamber. According to claim 8,
The first inflow curve surface,
A cartridge having a bell mouth shape. According to claim 7,
The inflow curve surface,
A cartridge comprising a second inlet curve surface formed convexly from the inside to the outside of the second chamber and gradually extending in a direction from the inlet toward the second chamber. According to claim 7,
The inflow curve surface,
a first inlet curve surface surrounding the inlet, forming a center of curvature toward the outside of the second chamber, and gradually narrowing from the inside to the outside of the second chamber; and
A second inlet curve surface that is convexly formed from the inside to the outside of the second chamber, gradually expands in a direction from the inlet toward the second chamber, and is connected to the first inlet curve surface to form a continuous surface. Cartridge containing. According to claim 1,
The wick,
Between the inlet and the outlet, it is arranged to extend to one side,
At least one of the inlet and the outlet,
A cartridge that opens toward the wick in a direction crossing the longitudinal direction of the wick, and has a longer width along the longitudinal direction of the wick. According to claim 12,
The second chamber,
A cartridge comprising an inlet curved surface that gradually expands from the inlet port toward the periphery of both ends of the wick and forms the second chamber. According to claim 12,
The second chamber,
and a discharge curve surface which gradually narrows from the periphery of both ends of the wick towards the discharge port and forms the second chamber. According to claim 1,
The second chamber,
A cartridge having a spherical shape. According to claim 1,
The second chamber,
A cartridge having an ellipsoidal shape elongated from the inlet toward the outlet. According to claim 1,
an inlet channel extending in a direction crossing the direction in which the inlet is opened, and bent toward the inlet to communicate with the inlet; and
The cartridge further comprises a channel curve surface formed at a bent portion of the inlet channel and covering one side of the inlet channel. According to claim 17,
The second chamber,
A second inlet curve surface having a portion forming the second chamber around the inlet, forming a center of curvature toward the inside of the second chamber, and being connected to the channel curve surface to form a continuous surface. Cartridge to do. The inlet and the outlet,
Opened to face each other with the wick interposed therebetween,
A cartridge further comprising an inlet channel communicating with the outside and extending in one direction toward the wick. According to claim 1,
A cartridge further comprising a baffle installed at the inlet and having a plurality of holes. a first chamber for storing liquid;
a second chamber having an inlet and an outlet;
a wick located in the second chamber and connected to the first chamber; and,
Including a heater for heating the wick,
The second chamber is:
A cartridge comprising a surface forming the second chamber while gradually narrowing from a periphery of the wick toward at least one of the inlet and the outlet.

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