Liquid Cartridge Apparatus for Micro Particle Generator

Abstract

A liquid cartridge device for a fine particle generating device is disclosed. According to one embodiment of the present disclosure, a liquid cartridge device configured to be connected to a handle portion of an aerosol generating device for a user to grasp, comprises: a storage portion configured to store a liquid composition including an aerosol generating substance; an aerosol generating portion coupled to the storage portion in the height direction and including a generating space configured to generate an aerosol from the aerosol generating substance inside, wherein the aerosol generating portion comprises: a liquid delivery means configured to absorb the liquid composition supplied from the storage portion, extending longitudinally in a direction perpendicular to the height direction and disposed in the generating space; a heating member configured to generate an aerosol by heating the liquid composition absorbed by the liquid delivery means, and including a plurality of contact portions formed at each of both ends; an inner case configured to electrically connect the heating member and a power source included in the handle portion; and an outer case configured to surround at least a portion of the inner case, including a plurality of through holes configured to penetrate at least a portion of each of the plurality of terminal portions. A liquid cartridge device is provided, comprising a joint member configured to cover at least a portion of each of the plurality of contact portions and to connect each of the plurality of contact portions to each of the plurality of terminal portions.

Description

Technology Field

[0001] The present disclosure relates to a liquid cartridge device for a microparticle generating device. Background Technology

[0002] The content described in this section merely provides background information regarding the present disclosure and does not constitute prior art.

[0003] Recently, there has been an increasing demand for alternative methods to overcome the disadvantages of conventional cigarettes. For example, there is an increasing demand for methods that generate aerosols by heating a liquid composition containing an aerosol-generating substance within a liquid cartridge device, rather than by burning a cigarette to generate aerosols. Recently, electronic cigarettes, which heat a liquid composition to atomize it and then inhale the atomized vapor, are being actively used.

[0004] A conventional liquid cartridge device includes a terminal at the bottom of the liquid cartridge device to heat a liquid composition by supplying power. The conventional liquid cartridge device joins a structure including the terminal and a structure including a heating member for heating the liquid composition by press-fitting. Through the press-fitting of multiple structures, the heating member is electrically connected to the terminal by making physical contact in a line contact manner, which is a two-dimensional structure. However, this contact method has a problem in that the physical contact force between the terminal and the heating member decreases due to a decrease in press-fit force between multiple structures over time or due to external impact. The decrease in the physical contact force between the terminal and the heating member can cause a change in the electrical resistance applied to the heating member. As a result, there is a problem of reduced efficiency due to increased battery consumption of the microparticle generator.

[0005] In addition, there is a problem that changes in the electrical resistance applied to the heating element affect the flavor of the tobacco, and the amount of vapor is reduced as the amount of heating decreases, thereby lowering the user's smoking satisfaction. The problem to be solved

[0006] The liquid cartridge device of the present disclosure can increase productivity by preventing entanglement between multiple heating members during production by including a plurality of contact portions including curves and / or curved surfaces at both ends of the heating member.

[0007] The liquid cartridge device of the present disclosure can implement a stable electrical connection structure by firmly connecting a plurality of contact portions and a plurality of terminal portions.

[0008] The liquid cartridge device of the present disclosure can maintain a constant level of user satisfaction with smoking by preventing changes in electrical resistance through the implementation of a stable electrical connection structure between a plurality of contact parts and a plurality of terminal parts.

[0009] The problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art from the description below. means of solving the problem

[0010] According to one embodiment of the present disclosure, a liquid cartridge device configured to be connected to a handle portion of an aerosol generating device for a user to grasp, comprises: a storage portion configured to store a liquid composition including an aerosol generating substance; an aerosol generating portion coupled to the storage portion in the height direction and including a generating space configured to generate an aerosol from the aerosol generating substance inside, wherein the aerosol generating portion comprises: a liquid delivery means configured to absorb the liquid composition supplied from the storage portion, extending longitudinally in a direction perpendicular to the height direction and disposed in the generating space; a heating member configured to generate an aerosol by heating the liquid composition absorbed by the liquid delivery means, and including a plurality of contact portions formed at each of both ends; an inner case configured to electrically connect the heating member and a power source included in the handle portion; and an outer case configured to surround at least a portion of the inner case, including a plurality of through holes configured to penetrate at least a portion of each of the plurality of terminal portions. A liquid cartridge device is provided, comprising a joint member configured to cover at least a portion of each of the plurality of contact portions and to connect each of the plurality of contact portions to each of the plurality of terminal portions.

[0011] According to another embodiment of the present disclosure, a liquid cartridge device configured to be connected to a handle portion of an aerosol generating device for a user to grasp, comprises: a storage portion configured to store a liquid composition comprising an aerosol generating substance; and an aerosol generating portion coupled to the storage portion in the height direction and comprising a generating space configured to generate an aerosol from the aerosol generating substance, wherein the aerosol generating portion comprises: a liquid delivery means extending longitudinally in a direction perpendicular to the height direction and disposed in the generating space and configured to absorb the liquid composition supplied from the storage portion; a heating member comprising a plurality of contact portions at each end and wound around the liquid delivery means and configured to generate an aerosol by heating the liquid composition absorbed by the liquid delivery means; and an inner case comprising a plurality of terminal portions configured to electrically connect the heating member and a power source included in the handle portion. A liquid cartridge device is provided that includes a plurality of through holes configured to penetrate at least a portion of each of the plurality of terminal portions, and an outer case configured to surround at least a portion of the inner case, wherein the plurality of contact portions and / or the plurality of terminal portions are physically and chemically connected by a thermal fusion by an electric arc. Effects of the invention

[0012] The liquid cartridge device of the present disclosure includes a plurality of contact portions including curves and / or curved surfaces at both ends of the heating member, thereby preventing entanglement between the plurality of heating members during production and increasing productivity.

[0013] The liquid cartridge device of the present disclosure has the effect of enabling a stable electrical connection structure by firmly connecting a plurality of contact parts and a plurality of terminal parts.

[0014] The liquid cartridge device of the present disclosure has the effect of preventing changes in electrical resistance and maintaining a constant level of user satisfaction with smoking by implementing a stable electrical connection structure between a plurality of contact parts and a plurality of terminal parts. Brief explanation of the drawing

[0015] FIG. 1 is a perspective view showing a liquid cartridge device according to one embodiment of the present disclosure. FIG. 2 is an exploded perspective view of a liquid cartridge device according to one embodiment of the present disclosure. FIG. 3 is a planar cross-sectional view of an aerosol generating section of a liquid cartridge device according to one embodiment of the present disclosure. FIG. 4 is a side cross-sectional view of an aerosol generating part of a liquid cartridge device according to one embodiment of the present disclosure. FIG. 5 is a drawing showing a plurality of terminal portions of the present disclosure and an aerosol generating portion formed around them. . FIG. 6a is a drawing showing a plurality of contact parts according to a first embodiment of the present disclosure. FIG. 6b is a drawing showing a plurality of contact parts according to a second embodiment of the present disclosure. FIG. 6c is a drawing showing a plurality of contact parts according to a third embodiment of the present disclosure. Specific details for implementing the invention

[0016] Some embodiments of the present disclosure are described in detail below with reference to the exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the present disclosure, if it is determined that a detailed description of related known components or functions could obscure the essence of the present disclosure, such detailed description is omitted.

[0017] In describing the components of the embodiments according to the present disclosure, symbols such as first, second, i), ii), a), b), etc., may be used. These symbols are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the symbols. When a part in the specification is described as 'comprising' or 'having' a component, this means that, unless explicitly stated otherwise, it does not exclude other components but may include additional components.

[0018] In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are used merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms.

[0019] Where it is stated that one component is 'connected', 'combined', or 'joined' to another component, it should be understood that while the component may be directly connected or joined to the other component, another component may also be 'connected', 'combined', or 'joined' between each component.

[0020] Terms such as 'part', 'module', etc., as described in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware, software, or a combination of hardware and software.

[0021] Unless otherwise stated, it should be noted that the description of any one embodiment may also apply to other embodiments.

[0022] The description of the invention disclosed below, together with the accompanying drawings, is intended to describe exemplary embodiments of the invention and is not intended to represent the only embodiment in which the invention may be practiced.

[0023] The liquid cartridge device of the present disclosure may be configured to be connected to a handle portion of an aerosol generating device for a user to grasp.

[0024] FIG. 1 is a perspective view showing a liquid cartridge device according to one embodiment of the present disclosure.

[0025] FIG. 2 is an exploded perspective view of a liquid cartridge device according to one embodiment of the present disclosure.

[0026] FIG. 3 is a planar cross-sectional view of an aerosol generating section of a liquid cartridge device according to one embodiment of the present disclosure.

[0027] FIG. 4 is a side cross-sectional view of an aerosol generating part of a liquid cartridge device according to one embodiment of the present disclosure.

[0028] FIG. 5 is a drawing showing a plurality of terminal portions of the present disclosure and an aerosol generating portion formed around them. .

[0029] FIG. 6a is a drawing showing a plurality of contact parts according to a first embodiment of the present disclosure.

[0030] FIG. 6b is a drawing showing a plurality of contact parts according to a second embodiment of the present disclosure.

[0031] FIG. 6c is a drawing showing a plurality of contact parts according to a third embodiment of the present disclosure.

[0032] In the present disclosure, the height direction may mean the Z-axis direction shown in the drawings, the longitudinal direction may mean the X-axis direction, and the transverse direction may mean the Y-axis direction. However, it is not necessarily limited thereto.

[0033] Referring to FIGS. 1 to 6c, a liquid cartridge device (1) according to one embodiment of the present disclosure may include a storage unit (10) and an aerosol generating unit (100).

[0034] The storage unit (10) may be configured to store a liquid composition containing an aerosol generating substance. The storage unit (10) may be configured to be coupled in the height direction with the aerosol generating unit (100) to be described later. The storage unit (10) may include a coupling groove (11) at a position corresponding to a plurality of coupling protrusions (152) formed on the outer case (150) of the aerosol generating unit (100). By including a plurality of coupling protrusions (152) and a plurality of coupling grooves (11), the storage unit (10) can be easily coupled to the aerosol generating unit (100).

[0035] The storage unit (10) may be configured to supply a liquid composition containing an aerosol generating substance to the aerosol generating unit (100).

[0036] The aerosol generating unit (100) may be configured to be coupled to the storage unit (10) in the height direction. The aerosol generating unit (100) may include a generating space (170) configured to generate an aerosol from an aerosol generating material inside.

[0037] An aerosol generating unit (100) according to one embodiment of the present disclosure may include some or all of a liquid delivery means (110), a heating member (120), an inner case (130), an outer case (150), and a joint member (160).

[0038] The liquid delivery means (110) may be configured to absorb a liquid composition supplied from the storage unit (10). The liquid delivery means (110) may be extended longitudinally and disposed in the generating space (170). More specifically, the liquid delivery means (110) may be disposed in a plurality of seating grooves (131) formed in the inner case (130) to be described later.

[0039] The liquid delivery means (110) may be configured to allow a heating member (120), to be described later, to be wound. The liquid delivery means (110) may include a winding portion (111) and a seating portion (112).

[0040] The winding portion (111) may have a central portion formed with a first diameter (D1). The winding portion (111) may be an area where the heating member (120) is wound.

[0041] The seating portion (112) is formed at both ends of the winding portion (111) and can be configured to be seated in a plurality of seating grooves formed in the inner case (130). The seating portion (112) can be formed with a second diameter (D2). Here, the second diameter (D2) may be a larger diameter than the first diameter (D1). By doing so, the effect of preventing the wound heating member (120) from detaching from the liquid delivery means (110) is achieved.

[0042] The liquid delivery means (110) may be composed of materials such as silica wick and cotton. However, it is not necessarily limited to these.

[0043] The heating member (120) may be configured to generate an aerosol by heating a liquid composition absorbed by the liquid delivery means (110). The heating member (120) may be configured such that its central portion is wound onto the winding portion (111) of the liquid delivery means (110). The heating member (120) may be composed of materials such as copper, iron, molybdenum, nickel, stainless steel, and tantalum. Additionally, it may be an alloy of two or more of the aforementioned materials. However, the material of the heating member (120) is not necessarily limited to these.

[0044] The heating member (120) may include a plurality of contact portions (121) at both ends. The plurality of contact portions (121) may be configured so that each contacts a plurality of terminal portions (140) to be described later in order to receive power for heating.

[0045] Referring to FIGS. 6a to 6c, the plurality of contact portions (121) may be any one of the plurality of contact portions (121a) according to the first embodiment, the plurality of contact portions (121b) according to the second embodiment, and the plurality of contact portions (121c) according to the third embodiment. However, the shape of the plurality of contact portions (121) of the present disclosure is not necessarily limited thereto and may be formed in various shapes.

[0046] Each of the plurality of contact portions (121a) according to the first embodiment may be formed in a loop shape wound with an axis parallel to the longitudinal direction. The loop shape may be a shape wound to have a constant radius. The number of turns of each of the plurality of contact portions (121a) according to the first embodiment may be any one of 0.1 turns to 5 turns. Preferably, it may be within 0.1 turns to 3 turns.

[0047] The wound pitch of each of the plurality of contact portions (121a) according to the first embodiment, that is, the spacing between the heating members (120) when each of the plurality of contact portions (121a) according to the first embodiment is wound, may be equal to or greater than the wire diameter of the heating member (120). Preferably, it may be one to two times the wire diameter of the heating member (120).

[0048] Each of the plurality of contact portions (121b) according to the second embodiment may be formed in a spherical shape.

[0049] Each of the plurality of contact portions (121c) according to the third embodiment may be formed in a loop shape wound around an axis parallel to the height direction. The loop shape may be a shape wound to have a constant radius. The number of turns of each of the plurality of contact portions (121c) according to the third embodiment may be any one of 0.1 turns to 5 turns. Preferably, it may be within 0.1 turns to 3 turns.

[0050] The wound pitch of each of the plurality of contact portions (121c) according to the third embodiment, that is, the spacing between the heating members (120) when each of the plurality of contact portions (121c) according to the third embodiment is wound, may be equal to or greater than the wire diameter of the heating member (120). Preferably, it may be one to two times the wire diameter of the heating member (120).

[0051] The heating member (120) of the present disclosure includes a plurality of contact portions (121) formed in a shape including a curve and / or a curved surface, thereby preventing the plurality of heating members (120) from getting tangled with each other during mass production. In addition, the heating member (120) of the present disclosure can be configured to be coupled with a plurality of terminal portions (140) without a separate processing step for the plurality of contact portions (121) after being inserted into an inner case (130). Thus, there is an effect of improving productivity.

[0052] The inner case (130) may be configured to accommodate a liquid delivery means (110) and a heating member (120). The inner case (130) may include a generating space (170) configured to generate an aerosol from an aerosol generating material. The inner case (130) may be composed of materials such as Liquid Crystal Polymer (LCP), Polyphthalamide (PPA), Polycyclohexylenedimethylene Terephthalate (PCT), Polyether Ether Ketone (PEEK), Polycarbonate (PC), and Polystyrene (HIPS). However, it is not necessarily limited thereto.

[0053] The inner case (130) may include a plurality of mounting grooves (131). The plurality of mounting grooves (131) may be configured to allow the liquid delivery means (110) to be mounted.

[0054] The inner case (130) may include a first guide part (133) for guiding the aerosol generated in the generation space (170) toward the aerosol generating device.

[0055] The inner case (130) may include a plurality of terminal portions (140) at the bottom. The plurality of terminal portions (140) may be configured to be electrically connected to each of the power sources included in the heating member (120) and the handle portion of the aerosol generating device. The inner case (130) may be formed by an outsert injection molding method centered on the plurality of terminal portions (140). However, it is not necessarily limited thereto.

[0056] Each of the plurality of terminal portions (140) may include some or all of the external connection portion (141), the first contact surface (142), the second contact surface (143), and the extension portion (144).

[0057] Each of the plurality of terminal portions (140) can be configured to correspond to the position of each of the plurality of contact portions (121) formed at both ends of the heating member (120).

[0058] Each of the multiple terminal portions (140) may be composed of a base material such as copper, copper alloy, iron, aluminum, or manganese, and the surface of the base material may be plated with nickel, tin (Sn), gold, silver, etc., and may be an alloy of two or more of the above-mentioned materials. However, it is not necessarily limited to this and may be composed of a conductive material.

[0059] The external connection portion (141) may be formed on a first surface on one side in the height direction of the terminal portion (140). The external connection portion (141) may be configured to be connected to a power source included in the handle portion of the aerosol generating device. The external connection portion (141) may be formed in a shape that protrudes to penetrate the through hole (151) of the outer case (150) to be described later.

[0060] The first contact surface (142) and the second contact surface (143) may be configured to be connected to each of the plurality of contact portions (121) formed at both ends of the heating member (120). The first contact surface (142) and the second contact surface (143) may be formed on a second surface that is opposite to the first surface. The first contact surface (142) may be formed on one side of the second surface in the transverse direction. The second contact surface (143) may be formed on the other side of the second surface in the transverse direction.

[0061] Referring to FIG. 3, a liquid cartridge device (1) for a microparticle generating device according to one embodiment of the present disclosure may be configured such that one of a plurality of contact portions (121) is connected to a first contact surface (142) of one of a plurality of terminal portions (140). Another of the plurality of contact portions (121) may be configured to be connected to a second contact surface (143) of another of the plurality of terminal portions (140). By doing so, a heating member (120) may be electrically connected to a terminal portion (140) having a different polarity.

[0062] The extension portion (144) may be formed in a shape that extends toward the opposite longitudinal direction where each of the plurality of terminal portions (140) faces each other. Referring to FIG. 5, by including the extension portion (144), it can be configured to facilitate mass production.

[0063] The outer case (150) may be configured to surround at least a portion of the inner case (130). The outer case (150) may be composed of materials such as Liquid Crystal Polymer (LCP), Polyphthalamide (PPA), Polycyclohexylenedimethylene Terephthalate (PCT), Polyether Ether Ketone (PEEK), Polycarbonate (PC), and Polystyrene (HIPS). However, it is not necessarily limited thereto. The outer case (150) may be composed separately from the inner case (130), but is not necessarily limited thereto and may be formed integrally while maintaining their respective functions. The method of forming integrally may be injection molding, etc.

[0064] The outer case (150) may include a plurality of coupling protrusions (152) on the side coupled to the storage portion (10). Each of the plurality of coupling protrusions (152) may be configured to be fitted and coupled with each of the plurality of coupling grooves (11) formed in the storage portion (10).

[0065] The outer case (150) may include a second guide portion (153) formed to communicate with a first guide portion (133) formed in the inner case (130). The aerosol generated in the generation space (170) may be guided toward the aerosol generating device via the first guide portion (133) and the second guide portion (153).

[0066] The outer case (150) may include a plurality of through holes (151) configured to allow at least a portion of each of the plurality of terminal portions (140) to pass through. More specifically, each of the plurality of through holes (151) may be configured to allow an external connection portion (141) formed in each of the plurality of contact portions (121) to pass through.

[0067] The inner case (130) and the outer case (150) may each be composed of separate parts, but are not necessarily limited thereto and may be formed as a single unit while maintaining their respective functions. The method of forming as a single unit may be injection molding, etc.

[0068] The joint member (160) may be configured to physically, chemically, and electrically connect each of the plurality of contact portions (121) and each of the plurality of terminal portions (140). Referring to FIG. 4, the joint member (160) may be configured to cover at least a portion of each of the plurality of contact portions (121) arranged to correspond to the first contact surface (142) and the second contact surface (143), respectively. That is, the joint member (160) may cover each of the plurality of contact portions (121) of the heating member (120) and the first contact surface (142) and the second contact surface (143) of the plurality of terminal portions (140) corresponding to each of the plurality of contact portions (121), or cover a portion of them in the form of a fillet. By doing so, a stable mechanical and electrical coupling structure can be realized.

[0069] The joint member (160) may be composed of materials such as silver epoxy, conductive paste, and tin-silver-copper alloy (SAC soler). However, it is not necessarily limited thereto. Before undergoing the curing process, the joint member (160) may be in a fluid gel or paste state. The joint member (160) can firmly bond the first contact surface (142) and the second contact surface (143) of the plurality of terminal parts (140) and each of the plurality of contact parts (121) of the heating member (120) through the curing process. The curing process may be performed using a chamber oven or a reflow oven, etc. However, it is not necessarily limited thereto.

[0070] Conventional liquid cartridge devices are configured such that both ends of a heating element are formed in an L-shaped bent form including a straight section, thereby making simple line contact with a terminal. Consequently, in conventional liquid cartridge devices, only a portion of the outer circumference of the straight section at both ends of the heating element makes line contact with the terminal. Conventional liquid cartridge devices join a structure including a terminal and a structure including a heating element for heating a liquid composition by press-fitting. This contact method has a problem in that the physical contact force between the terminal and the heating element decreases due to a reduction in press-fit force caused by spring back between multiple structures over time or due to external impact. A decrease in physical contact force can cause a change in the electrical resistance applied to the heating element. Such a change in electrical resistance causes a change in the heating temperature of the heating element or increases the battery consumption of the aerosol generator, thereby causing a problem of reduced efficiency.

[0071] A liquid cartridge device (1) according to one embodiment of the present disclosure can be configured such that at least a portion of each of the plurality of contact parts (121) and a plurality of terminal parts (140) are electrically connected through surface contact via physical and chemical bonding by joining one of the first contact surface (142) and the second contact surface (143) with each of the plurality of contact parts (121) using a joint member (160). In addition, by implementing a stable connection structure using the joint member (160), the stability of the electrical connection can be ensured without being affected by external shocks, etc. By implementing a stable electrical connection structure, changes in the contact area between the plurality of contact parts (121) and the plurality of terminal parts (140) over time can be prevented, thereby ensuring that the electrical resistance applied to the heating member (120) remains constant. Accordingly, the battery consumption and vaporization amount of the fine particle generating device are fundamentally prevented from changing rapidly over time, thereby ensuring that the user's smoking satisfaction remains constant.

[0072] Hereinafter, an exemplary production process of a liquid cartridge device (1) according to one embodiment of the present disclosure is described. However, it is not necessarily limited thereto.

[0073] Referring to FIG. 5, a plurality of terminal portions (140) can be formed in a state where the extension portion (144) is coupled to a frame, etc. using a press process.

[0074] The inner case (130) can be formed by an outsert injection molding method centered on a plurality of terminal portions (140). The external connection portion (141) can be configured to be exposed on one side in the height direction of the inner case (130).

[0075] The heating member (120) may be configured such that its central portion is wound onto the winding portion (111) of the liquid delivery means (110). A predetermined joint member (160) may be applied to at least a portion of the plurality of contact portions (121). Here, the predetermined joint member (160) may be an amount sufficient to cover the first contact surface (142) and the second contact surface (143) of each of the plurality of contact portions (121) and the corresponding plurality of terminal portions (140). The liquid delivery means (110) on which the heating member (120) is wound may be seated in the plurality of seating grooves (131) of the inner case (130).

[0076] When the heating member (120) is seated in a plurality of seating grooves (131) of the inner case (130), each of the plurality of contact portions (121) formed at both ends of the heating member (120) may be in contact with a second surface of a plurality of terminal portions (140) formed at the bottom of the inner case (130). More specifically, one of the plurality of contact portions (121) may be in contact with a first contact surface (142) of one of the plurality of terminal portions (140). Another of the plurality of contact portions (121) may be in contact with a second contact surface (143) of another of the plurality of terminal portions (140).

[0077] A heating member (120) is seated in a plurality of seating grooves (131) of an inner case (130), and a curing process can be performed using a chamber oven or a reflow oven, etc. As the curing process is performed, a joint member (160) in a gel state or paste state having fluidity can be cured.

[0078] After the curing process is performed, the outer case (150) can be formed by a double injection method centered on the inner case (130). By doing so, it is possible to form the outer case (150) and the inner case (130) without any spaced-out gap between them.

[0079] An aerosol generating unit (not shown) according to another embodiment of the present disclosure may include some or all of a liquid delivery means (110), a heating member (120), an inner case (130), and an outer case (150).

[0080] Since the components of an aerosol generating unit (not shown) according to another embodiment of the present disclosure may be identical to the components of an aerosol generating unit (100) according to one embodiment, except for the components specifically described below, a detailed description of the identical parts is omitted.

[0081] An aerosol generating unit (not shown) according to another embodiment of the present disclosure may supply a certain amount of voltage and high current to each of the plurality of contact parts (121) and / or the first contact surface (142) and the second contact surface (143) of the plurality of terminal parts (140) corresponding to each of the plurality of contact parts (121) in order to electrically connect the plurality of contact parts (121) and the plurality of terminal parts (140) at both ends of a heating member (120). After that, the plurality of contact parts (121) and the plurality of terminal parts (140) may be brought into contact with each other so that a strong electric field is formed between the plurality of contact parts (121) and the plurality of terminal parts (140). As a result, an electric arc may be generated, and heat of a high temperature may be generated. The plurality of contact parts (121) and the plurality of terminal parts (140) may be physically and chemically bonded by melting to form a molten pool and then solidifying. By doing this, a stable electrical connection structure can be implemented. This physicochemical bonding forms a stronger bonding force than a simple physical contact method, which has the effect of ensuring the stability of the electrical connection without being affected by external shocks. By implementing a stable electrical connection structure, changes in the electrical resistance applied to the heating element (120) due to changes in the contact area over time can be prevented, thereby preventing a decrease in battery usage efficiency and ultimately maintaining the consumer's smoking satisfaction at a constant level.

[0082] The above description is merely an illustrative explanation of the technical concept of the present embodiment, and a person skilled in the art to which the present embodiment belongs would be able to make various modifications and variations within the scope of the essential characteristics of the present embodiment. Accordingly, the present embodiments are intended to explain, not limit, the technical concept of the present embodiment, and the scope of the technical concept of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present embodiment. Explanation of the symbols

[0083] 1: Liquid cartridge device 10: Storage section 100: Aerosol generating unit 110: Liquid delivery means 111: Winding section 112: Settlement 120: Heating element 130: Inner case 131: Landing Home 133: 1st Judo Division 140: Multiple terminal sections 141: External connection 142: First contact surface 143: Second contact surface 144: Extension part 150: Outer case 151: Through hole 152: Connecting protrusion 153: 2nd Judo Division 160: Joint member 170: Generation space

Claims

Claim 1 A liquid cartridge device configured to be connected to a handle portion of an aerosol generating device for a user to grip, comprising: a storage portion configured to store a liquid composition containing an aerosol generating substance; and an aerosol generating portion coupled to the storage portion in the height direction and including a generating space configured to generate an aerosol from the aerosol generating substance inside, wherein the aerosol generating portion comprises: a liquid delivery means configured to absorb the liquid composition supplied from the storage portion, extending longitudinally in a direction perpendicular to the height direction and disposed in the generating space; a heating member configured to generate an aerosol by heating the liquid composition absorbed by the liquid delivery means, and including a plurality of contact portions formed at each end; an inner case configured to electrically connect the heating member and a power source included in the handle portion; and an outer case configured to surround at least a portion of the inner case, including a plurality of through holes configured to penetrate at least a portion of each of the plurality of terminal portions. A liquid cartridge device comprising a joint member configured to cover at least a portion of each of the plurality of contact portions and to connect each of the plurality of contact portions to each of the plurality of terminal portions. Claim 2 A liquid cartridge device according to claim 1, wherein each of the plurality of terminal portions includes an external connection portion formed on a first surface on one side in the height direction, and the external connection portion protrudes to penetrate the through hole of the outer case. Claim 3 In claim 2, the liquid cartridge device wherein each of the plurality of terminal portions comprises, when the direction perpendicular to the height direction and the longitudinal direction is defined as the transverse direction, a first contact surface on one side of the transverse direction of a second surface opposite to the first surface and a second contact surface on the other side of the transverse direction opposite to the one side of the transverse direction. Claim 4 A liquid cartridge device according to claim 3, wherein one of the plurality of contact parts is in contact with the first contact surface of one of the plurality of terminal parts, and another of the plurality of contact parts is in contact with the second contact surface of another of the plurality of terminal parts. Claim 5 A liquid cartridge device in claim 2, wherein each of the plurality of terminal portions includes an extension portion formed to extend in the longitudinal direction, but in a direction opposite to the direction facing each other. Claim 6 In claim 1, the joint member is a liquid cartridge device composed of any one of epoxy, conductive paste, tin-silver-copper alloy, or a mixture thereof. Claim 7 A liquid cartridge device according to claim 1, wherein the outer case and the inner case are formed integrally. Claim 8 A liquid cartridge device according to claim 1, wherein the outer case and the inner case are formed by double injection molding so as not to have a spaced-apart space between the outer case and the inner case. Claim 9 A liquid cartridge device configured to be connected to a handle portion of an aerosol generating device for a user to grip, comprising: a storage portion configured to store a liquid composition containing an aerosol generating substance; and an aerosol generating portion coupled to the storage portion in the height direction and including a generating space configured to generate an aerosol from the aerosol generating substance inside, wherein the aerosol generating portion comprises: a liquid delivery means configured to absorb the liquid composition supplied from the storage portion, extending longitudinally in a direction perpendicular to the height direction and disposed in the generating space; a heating member configured to generate an aerosol by heating the liquid composition absorbed by the liquid delivery means, each having a plurality of contact portions at each end and wound around the liquid delivery means; and an inner case including a plurality of terminal portions configured to electrically connect the heating member and a power source included in the handle portion. A liquid cartridge device comprising a plurality of through holes configured to allow at least a portion of each of the plurality of terminal portions to pass through, and an outer case configured to surround at least a portion of the inner case, wherein the plurality of contact portions and / or the plurality of terminal portions are physicochemically connected by a thermal fusion by an electric arc.

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