Aerosol-generating device

Abstract

Disclosed is an aerosol-generating device. The aerosol-generating device disclosed herein comprises: a body providing an insertion space that is open on one side; a heater for heating the insertion space; at least one sensor disposed adjacent to the insertion space; a circuit board on which the at least one sensor is disposed; and a heat spreading body in contact with the circuit board, wherein at least a portion of the heat spreading body may extend in a direction away from the heater.

Description

Aerosol generator

[0001] The present disclosure relates to an aerosol generating device.

[0002] An aerosol generator is designed to extract a specific component from a medium or substance through an aerosol. The medium may contain various components. The components contained in the medium may include various flavoring substances. For example, the components contained in the medium may include nicotine, herbal ingredients, and / or coffee ingredients. Recently, extensive research has been conducted on such aerosol generators.

[0003] The aerosol generating device uses an internal heater in the shape of a blade or rod that is inserted into an aerosol generating material to heat the aerosol generating material, or an external heater in the shape of a cylinder that receives and heats the aerosol generating material inside.

[0004] Heat generated by the heater is transferred to the outside of the heater. In conventional aerosol generators, the temperature of sensors within the device increases due to heat transferred to the outside of the heater, which can cause malfunctions or failures in the sensors.

[0005] The present disclosure aims to solve the above-mentioned and other problems.

[0006] Another object may be to provide an aerosol generating device having a heat spreader in contact with a circuit board connected to at least one sensor and extending in a direction away from the heater.

[0007] Another object may be to provide an aerosol generating device in which the heat spreader is positioned so as to contact a surface of the circuit board opposite to the surface on which the sensors are positioned.

[0008] Another object may be to provide an aerosol generating device in which the heat spreader has a bent shape corresponding to the shape in which the circuit board is bent.

[0009] Another object may be to provide an aerosol generating device in which the heat spreader extends downwards beyond the heater.

[0010] Another object may be to provide an aerosol generating device in which a heat dissipating body is positioned adjacent to an inlet passage.

[0011] Another object may be to provide an aerosol generating device having at least one heat sink disposed outside of a heat spreader.

[0012] Another object may be to provide an aerosol generating device having a TIM disposed between a heat spreader and a body casing and in contact with the heat spreader and the body casing.

[0013] According to one aspect of the present disclosure for achieving the above-described object, an aerosol generating device is provided, comprising: a body providing an insertion space with one side opened; a heater for heating the insertion space; at least one sensor disposed adjacent to the insertion space; a circuit board on which the at least one sensor is disposed; and a heat spreader in contact with the circuit board, wherein at least a portion of the heat spreader extends in a direction spaced apart from the heater.

[0014] According to at least one embodiment of the present disclosure, a heat spreader is provided that is in contact with a circuit board connected to at least one sensor and extends in a direction away from the heater, thereby diffusing heat generated by the heater and transferred to the sensor, thereby minimizing an increase in the temperature of the sensor.

[0015] According to at least one embodiment of the present disclosure, the heat spreader is arranged to contact a surface opposite to a surface on which sensors are arranged on the circuit board, thereby simplifying the structure of the heat spreader.

[0016] According to at least one embodiment of the present disclosure, the heat spreader has a bent shape corresponding to the shape in which the circuit board is bent, thereby increasing the contact area between the heat spreader and the circuit board, so that heat can be effectively transferred from the sensor to the heat spreader.

[0017] According to at least one embodiment of the present disclosure, the heat spreader extends below the heater so as to transmit or diffuse heat generated by the heater and transmitted to the sensor in a direction away from the heater and the sensor.

[0018] According to at least one embodiment of the present disclosure, a heat spreader is disposed adjacent to an inlet passage, so that the heat spreader can be cooled by outside air flowing through the inlet passage.

[0019] According to at least one embodiment of the present disclosure, at least one heat dissipator is provided disposed outside the heat spreader, so as to effectively transfer heat emitted from the heat spreader to the outside of the device.

[0020] According to at least one embodiment of the present disclosure, a TIM is provided between a heat spreader and a body casing and in contact with the heat spreader and the body casing, thereby effectively transferring heat emitted from the heat spreader to other structures within the device.

[0021] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will be apparent to 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 by way of example only.

[0022] FIG. 1 and FIG. 2 are drawings illustrating an aerosol generating device according to embodiments of the present disclosure.

[0023] FIG. 3 is a front perspective view of an aerosol generating device according to one embodiment of the present disclosure.

[0024] FIG. 4 is an exploded perspective view of a heater assembly of an aerosol generating device according to one embodiment of the present disclosure.

[0025] FIG. 5 is a cross-sectional view of a heater assembly of an aerosol generating device according to one embodiment of the present disclosure.

[0026] FIG. 6 is a drawing illustrating an electrically conductive track of a heater assembly according to one embodiment of the present disclosure.

[0027] Figure 7 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from the front.

[0028] Fig. 8 is a perspective view showing a state in which a circuit board, a heat spreader, and a TIM of an aerosol generating device according to one embodiment of the present disclosure are combined.

[0029] Fig. 9 is a perspective view showing a circuit board, a heat spreader, and a TIM of an aerosol generating device according to one embodiment of the present disclosure separated.

[0030] FIG. 10 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from the side.

[0031] Fig. 11 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from above.

[0032] Fig. 12 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from the front.

[0033] Fig. 13 is a perspective view showing a state in which a circuit board, a heat spreader, and a TIM of an aerosol generating device according to one embodiment of the present disclosure are combined.

[0034] Fig. 14 is a perspective view showing a circuit board, a heat spreader, and a TIM of an aerosol generating device according to one embodiment of the present disclosure separated.

[0035] FIG. 15 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from the side.

[0036] Figure 16 is a block diagram of an aerosol generating device according to one embodiment of the present disclosure.

[0037] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components are assigned the same reference numerals, and redundant descriptions thereof will be omitted.

[0038] The suffixes "module" and "part" used for components in the following description may be assigned or used interchangeably solely for the convenience of writing the specification. "Module" and "part" do not, by themselves, have distinct meanings or roles.

[0039] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate understanding of the embodiments disclosed in this specification, and the technical concepts disclosed in this specification are not limited by the attached drawings. It should be understood that the attached drawings include all modifications, equivalents, and substitutes included within the spirit and technical scope of the present disclosure.

[0040] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components. However, these components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0041] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, although it should be understood that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0042] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0043] Throughout this specification, the direction of the aerosol generator (1) may be defined based on an orthogonal coordinate system. In the orthogonal coordinate system, the x-axis direction may be defined as the left-right direction of the aerosol generator (1). The y-axis direction may be defined as the front-back direction of the aerosol generator (1). The z-axis direction may be defined as the up-down direction of the aerosol generator (1).

[0044]

[0045] Figures 1 and 2 illustrate an aerosol generating device (1) according to embodiments of the present disclosure.

[0046] Referring to FIGS. 1 and 2, the aerosol generating device (1) may include at least one of a power source (11), a control unit (12), a sensor (13), and a heater (18). At least one of the power source (11), the control unit (12), the sensor (13), and the heater (18) may be disposed inside the body (10) of the aerosol generating device (1). The body (10) may provide an insertion space (43) that is opened upward so that a stick (S), which is an aerosol generating article, may be inserted. The insertion space (43) may be formed by being recessed toward the inside of the body (10) to a predetermined depth so that at least a portion of the stick (S) can be inserted. The depth of the insertion space (43) may correspond to the length of a region of the stick (S) containing an aerosol generating material and / or a medium. The lower end of the stick (S) may be inserted into the inside of the body (10), and the upper end of the stick (S) may protrude outside the body (10). The user can inhale air by placing the top of the stick (S) exposed to the outside in his mouth.

[0047] The heater (18) can heat the stick (S). The heater (18) can extend upwardly around the space where the stick (S) is inserted. For example, the heater (18) can be in the form of a tube having a hollow space therein. The heater (18) can be arranged around the insertion space (43). The heater (18) can be arranged to surround at least a portion of the insertion space (43). The heater (18) can heat the insertion space (43) or the stick (S) inserted into the insertion space (43). The heater (18) can include an electrical resistance heater and / or an induction heater.

[0048] For example, referring to FIG. 1, the heater (18) may be a resistive heater. For example, the heater (18) may include an electrically conductive track, and the heater (18) may be heated as current flows through the electrically conductive track. The heater (18) may be electrically connected to a power source (11). The heater (18) may be directly heated by receiving current from the power source (11).

[0049] For example, referring to FIG. 2, the aerosol generator (1) may include an induction coil (181) surrounding a heater (18). The induction coil (181) may heat the heater (18). The heater (18) may be heated by a magnetic field generated by an AC current flowing through the induction coil (181). The magnetic field may penetrate the heater (18) and generate an eddy current within the heater (18). The eddy current may generate heat in the heater (18).

[0050] Meanwhile, a susceptor may be included inside the stick (S), and the susceptor inside the stick (S) may be heated by a magnetic field generated by an AC current flowing through the induction coil (181).

[0051] The power source (11) can supply power to operate the components of the aerosol generator (1). The power source (11) can be referred to as a battery. The power source (11) can supply power to at least one of the control unit (12), the sensor (13), and the heater (18). When the aerosol generator (1) includes an induction coil (181), the power source (11) can supply power to the induction coil (181).

[0052] The control unit (12) can control the overall operation of the aerosol generator (1). The control unit (12) can be mounted on a printed circuit board. The control unit (12) can control the operation of at least one of the power supply (11) and the sensor (13). The control unit (12) can control the operation of a display, motor, etc. installed in the aerosol generator (1). The control unit (12) can check the status of each component of the aerosol generator (1) to determine whether the aerosol generator (1) is in an operable state.

[0053] The control unit (12) can analyze the results detected by the sensor (13) and control the processes to be performed thereafter. For example, the control unit (12) can control the power supplied to the heater (18) so that the operation of the heater (18) is started or ended based on the results detected by the sensor (13). For example, the control unit (12) can control the amount of power supplied to the heater (18) and the time for which the power is supplied so that the heater (18) can be heated to a predetermined temperature or maintained at an appropriate temperature based on the results detected by the sensor (13).

[0054] The sensor (13) may include at least one of a temperature sensor, a puff sensor, and an insertion detection sensor. For example, the sensor (13) may sense at least one of the temperature of the heater (18), the temperature of the power source (11), and the temperature inside and outside the body (10). For example, the sensor (13) may sense the user's puff. For example, the sensor (13) may sense whether the stick (S) is inserted into the insertion space (43).

[0055]

[0056] Fig. 3 is a front perspective view of an aerosol generating device (1) according to one embodiment of the present disclosure.

[0057] Referring to FIG. 3, the body (10) may include an elongated side wall (102), a cover (106) forming one end, a base (108) forming the other end, and a door (110) for opening and closing the insertion space (43). The body (10) may have a cylindrical shape that is elongated in one direction.

[0058] The body (10) may include a side wall (102) forming an outer surface. The side wall (102) may have a curved surface. The side wall (102) may include a curved surface extending along the circumferential direction of the body (10).

[0059] The side wall (102) may include a first side wall (103). The first side wall (103) may extend in the circumferential direction of the body (10). The first side wall (103) may be bent in the circumferential direction of the body (10) and form a space therein. One side of the first side wall (103) may be open. The cross section of the first side wall (103) may have a loop shape with one side open.

[0060] The side wall (102) may include a second side wall (104). The second side wall (104) may extend in the longitudinal direction of the body (10). The second side wall (104) may be joined to the first side wall (103). The second side wall (104) may be positioned between both ends of the first side wall (103) in the circumferential direction and may form a surface continuous with the first side wall (103). The second side wall (104) may cover one side of the first side wall (103) that is opened in the lateral direction.

[0061] The body (10) may include a cover (106) forming one end in the longitudinal direction. The cover (106) may be joined to one end in the longitudinal direction of the first side wall (103).

[0062] The body (10) may include a door (110). The door (110) may be coupled to a cover (106). The door (110) may open and close the insertion space (43, see FIGS. 1 and 2) in a sliding manner. A rail (107) may be formed on the cover (106). The door (110) may slide along the rail (107).

[0063] The body (10) may include a base (108) forming a longitudinal end. The base (108) may be coupled to the longitudinal end of the first side wall (103).

[0064] The body (10) may include a first curved portion (105a) connecting the cover (106) and the second side wall (104). The first curved portion (105a) may be curved to connect the cover (106) and the second side wall (104).

[0065] The body (10) may include a second curved portion (105b) connecting the base (108) and the second side wall (104). The second curved portion (105b) may be curved to connect the base (108) and the second side wall (104).

[0066] By forming a part where the side wall (102) and the cover (106) are connected in a round shape through a first curved part (105a), and forming a part where the side wall (102) and the base (108) are connected in a round shape through a second curved part (105b), the resistance of the body (10) to external impact can be improved.

[0067]

[0068] FIG. 4 is an exploded perspective view of a heater assembly (18) of an aerosol generating device according to one embodiment of the present disclosure, and FIG. 5 is a cross-sectional view of a heater assembly (18) of an aerosol generating device according to one embodiment of the present disclosure.

[0069] Referring to FIGS. 4 and 5, a heater (18) may be disposed within the body (10, see FIGS. 1 to 3). The heater (18) may be referred to as a heater assembly. The heater assembly (18) may have a tube shape or a cylindrical shape including a hollow portion therein. The heater assembly (18) may surround an insertion space (43). The heater assembly (18) may provide the insertion space (43). The insertion space (43) or a stick (S) inserted into the insertion space (43) may be heated by the heater assembly (18).

[0070] The heater assembly (18) may include a susceptor (210), an electrically conductive track (220), and an insulator (230).

[0071] The susceptor (210) may have a cylindrical shape. The susceptor (210) may be located at the innermost side of the hollow heater assembly (18). The susceptor (210) may be arranged on the inner side of the electrically conductive track (220). The susceptor (210) may surround at least a portion of the insertion space (43). At least a portion of the inner surface of the susceptor (210) may be in contact with the outer surface of the stick (S) inserted into the insertion space (43). The susceptor (210) may be referred to as a heat transfer body, a heat conducting portion, a heat spreading portion, or a pipe. The susceptor (210) may be made of, but is not limited to, stainless steel, aluminum, or an alloy.

[0072] In the circumferential direction of the susceptor (210) or the circumferential direction of the insertion space (43), one end (211) of the susceptor (210) may be spaced apart from the other end (212) of the susceptor (210). A gap (G1) may be formed between the one end (211) and the other end (212) of the susceptor (210). The gap (G1) may be formed to be long in the longitudinal direction of the insertion space (43). As the width of the gap (G1) increases, the area of ​​the portion of the stick (S) that is not heated by the gap (G1) may increase. Therefore, the gap (G1) may be formed to have a maximum width such that the width of the aerosol generated from the stick (S) is greater than or equal to a set minimum amount.

[0073] Accordingly, during the process of manufacturing the susceptor (210) or the process of heating or cooling the susceptor (210), the phenomenon of the shape of the susceptor (210) being distorted or parts of the susceptor (210) overlapping each other can be prevented.

[0074] The electrically conductive track (220) may have a cylindrical shape. The electrically conductive track (220) may be arranged on the outside of the susceptor (210). The electrically conductive track (220) may surround at least a portion of the susceptor (210). The electrically conductive track (220) may receive power from a power source (11, see FIGS. 1 and 2) and generate heat. The electrically conductive track (220) may be referred to as a heat generating unit. The electrically conductive track (220) may be formed by etching a metal thin film with a laser. The electrically conductive track (220) may be made of, but is not limited to, stainless steel, copper, aluminum, or an alloy.

[0075] An insulator (230) may be arranged on one side of the electrically conductive track (220). The insulator (230) may be arranged on the inner and / or outer side of the electrically conductive track (220) and may have a cylindrical shape. The insulator (230) may cover the electrically conductive track (220). In the longitudinal direction of the insertion space (43), the insulator (230) may extend further upward and downward than the electrically conductive track (220). In the radial direction of the insertion space (43), the insulator (230) may be arranged between the susceptor (210) and the electrically conductive track (220).

[0076] The insulator (230) may be formed of a material having flexibility and heat resistance. The insulator (230) may include, but is not limited to, polyimide or polyetheretherketone (PEEK), and may include other materials having elasticity, heat resistance, and electrical insulation properties.

[0077] Brackets (241, 242) can be attached to the upper and lower sides of the heater assembly (18). The brackets (241, 242) can include a first bracket (241) attached or attached to the upper side of the heater assembly (18) corresponding to the opening of the insertion space (43) and a second bracket (242) attached or attached to the lower side of the heater assembly (18).

[0078] The first bracket (241) may include a first bracket body (2411), a first flange (2412), an insertion hole (2413), and an alignment groove (2414). The first bracket body (2411) may have a cylindrical shape. The first bracket body (2411) may be attached to or press-fitted to the upper portion of the heater assembly (18). The first flange (2412) may protrude radially outward from the upper end of the first bracket body (2411). The insertion hole (2413) may be formed to vertically penetrate the central portion of the first bracket (241). The alignment groove (2414) may be formed by recessing one side of the first flange (2412) in a radially inward direction. The alignment groove (2414) may have a shape corresponding to a protrusion provided on the body (10). The alignment groove (2414) can be coupled to a protrusion provided on the body (10). The alignment groove (2414) can prevent the heater assembly (18) from rotating on the body (10), and the heater assembly (18) can be stably coupled to the body (10).

[0079] The second bracket (242) may include a second bracket body (2421), a second flange (2422), and a hole (2424). The second bracket body (2421) may have a cylindrical shape. The second bracket body (2421) may be attached to or press-fitted to the lower portion of the heater assembly (18). The second flange (2422) may protrude radially outward from the lower end of the second bracket body (2421). The hole (2424) may be formed to vertically penetrate the central portion of the second bracket (242).

[0080] The insertion hole (2413) of the first bracket (241) can communicate with the upper side of the insertion space (43). The hole (2424) of the second bracket (242) can communicate with the lower side of the insertion space (43). The stick (S) can be inserted into the insertion space (43) through the insertion hole (2413). Outside air can be introduced from the outside of the heater assembly (18) through the end of the stick (S) and into the inside of the stick (S) through the hole (2424). The inner surface of the first bracket body (2411) can support at least a part of the outer surface of the stick (S) inserted into the insertion space (43). The upper surface (2423) of the second bracket body (2421) can support at least a part of the lower side of the stick (S) inserted into the insertion space (43).

[0081] Brackets (241, 242) may be made of, but are not limited to, stainless steel, aluminum, polyetheretherketone (PEEK) or an alloy.

[0082] A stick detection sensor (133) may be disposed in the heater assembly (18). The stick detection sensor (133) may detect insertion and / or removal of the stick (S). The stick detection sensor (133) may be disposed to surround at least a portion of the lower side of the heater assembly (18). The stick detection sensor (133) may be disposed below the susceptor (210) and the electrically conductive track (220) in the longitudinal direction of the insertion space (43). The stick detection sensor (133) may be disposed to contact a portion of an insulator (230) extending downwardly of the electrically conductive track (220) and surround a portion of the outer edge of the insulator (230). The stick detection sensor (133) may be spaced apart from the susceptor (210) and the electrically conductive track (220) in the longitudinal direction of the insertion space (43).

[0083] Accordingly, heat transferred to the stick detection sensor (133) by the susceptor (210) and the electrically conductive track (220) can be minimized. In addition, the accuracy of stick (S) detection by the stick detection sensor (133) can be increased.

[0084] A stick recognition sensor (not shown) may be disposed on one side of the heater assembly (18). The stick recognition sensor may be disposed at a position corresponding to an area of ​​a stick (S) inserted into the insertion space (43). The stick recognition sensor may detect a specific substance disposed on an area of ​​the stick (S). For example, the specific substance may be disposed on a wrapper corresponding to an area of ​​the stick (S). The stick recognition sensor may detect at least one of the type of the stick (S) and whether the stick (S) is genuine by detecting the specific substance.

[0085] Although not shown in the drawing, a casing may be coupled to a side surface of the heater assembly (18). The casing may include a first casing that surrounds a portion of the side surface of the heater assembly (18) and a second casing that surrounds the remainder of the side surface of the heater assembly (18). The first casing and the second casing may be coupled to surround the side surface of the heater assembly (18) and may be coupled to brackets (241, 242) coupled to the upper and lower ends of the heater assembly (18).

[0086]

[0087] FIG. 6 is a drawing illustrating an electrically conductive track (220) of a heater assembly (18) according to one embodiment of the present disclosure.

[0088] Referring to Fig. 6, the electrically conductive track (220) may have a cylindrical shape. The electrically conductive track (220) may receive power from a power source (11, see Figs. 1 and 2) and generate heat. The heat generated from the electrically conductive track (220) may heat the medium and / or moisturizer of a stick (S, see Figs. 1 and 2) inserted into an insertion space (43, see Figs. 1 and 2), thereby generating an aerosol.

[0089] The electrically conductive track (220) may include a heating track (221) and a connecting portion (222). The heating track (221) may include at least one track (221a, 221b, 221c). The first track (221a) may be arranged at the outermost end of the electrically conductive track (220) and may be rectangular overall. The second track (221b) may be arranged inside the first track (221a). The third track (221c) may be arranged inside the second track (221b).

[0090] The first to third tracks (221a, 221b, 221c) may include at least one bent portion and may have a meandering shape. The first to third tracks (221a, 221b, 221c) may be spaced apart from each other. The first to third tracks (221a, 221b, 221c) may have one end connected to each other and the other end connected to each other. In other words, the first to third tracks (221a, 221b, 221c) may be connected in parallel to each other.

[0091] The width (Wa) of the first track (221a) may be less than or equal to the width (Wb) of the second track (221b). The width (Wb) of the second track (221b) may be less than or equal to the width (Wc) of the third track (221c). The length of the first track (221a) may be less than or equal to the length of the second track (221b). The length of the second track (221b) may be less than or equal to the length of the third track (221c). The gap (G2) between the second track (221b) and the first track (221a) or the third track (221c) may be less than the width (Wa) of the first track (221a), the width (Wb) of the second track (221b), and the width (Wc) of the third track (221c).

[0092] Accordingly, in the electrically conductive track (220), the resistance deviation of the first track (221a) arranged on the outside and the second track (221b) and third track (221c) arranged on the inside can be reduced, and the deviation of the amount of heat generated in each track can be reduced.

[0093] In addition, since the spacing between the tracks is relatively narrower than the width of the tracks, the heating area of ​​the electrically conductive track (220) can be increased, and the insertion space (43) or the stick (S) inserted into the insertion space (43) can be evenly heated by the electrically conductive track (220).

[0094] The connecting portion (222) may protrude outward from one side of the heating track (221). The connecting portion (222) may be formed integrally with the heating track (221). The connecting portion (222) may be exposed from an insulator (230) covering the electrically conductive track (220). The connecting portion (222) may include a first connecting portion (222a) and a second connecting portion (222b). The first connecting portion (222a) may be connected to one end of the first to third tracks (221a, 221b, 221c), and the second connecting portion (222b) may be connected to the other end of the first to third tracks (221a, 221b, 221c).

[0095] The lead (223) can be connected to the electrically conductive track (220). The lead (223) can be connected to the connecting portion (222). The lead (223) can be extended in a long direction in which the connecting portion (222) protrudes. The lead (223) can electrically connect the electrically conductive track (220) to the power source (11). The lead (223) can include a first lead (223a) in contact with the first connecting portion (222a) and a second lead (223b) in contact with the second connecting portion (222b). Power can be supplied to the electrically conductive track (220) through the first lead (223a) and the second lead (223b). The lead (223) can be attached to the connecting portion (222) by welding. However, the method of attaching the lead (223) to the connecting portion (222) is not limited thereto.

[0096]

[0097] Fig. 7 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from the front. Fig. 7 illustrates a cross-section of a body (10) along line BB of Fig. 3.

[0098] Referring to Fig. 7, the aerosol generating device (1) may include a body (10). The body (10) may provide an insertion space (43). The insertion space (43) may be open on one side and may extend in the longitudinal direction of the body (10). The insertion space (43) may accommodate a stick (S, see Figs. 1, 2, and 5) therein.

[0099] The body casing (111) can be placed inside the body (10). The body casing (111) can support the body (10) inside the body (10). At least a portion of the body casing (111) can be coupled to or in contact with the inner surface of the body (10). The body casing (111) can accommodate a heater (18) therein.

[0100] The body casing (111) may include a first body casing (111a) and a second body casing (111b). The first body casing (111a) may extend in the circumferential direction of the insertion space (43). The first body casing (111a) may form an outer surface of the body casing (111). The second body casing (111b) may be connected to the first body casing (111a) and may be arranged inside the first body casing (111a). The second body casing (111b) may have at least one space formed therein. At least one space may be formed between the first body casing (111a) and the second body casing (111b). The second body casing (111b) may be formed integrally with the first body casing (111a).

[0101] The body casing (111) may be provided with a support portion (111c). The support portion (111c) may protrude from one side of the heat spreader (520) toward the heat spreader (520) and may contact one side of the heat spreader (520) to support the heat spreader (520).

[0102] The heater (18) can surround the insertion space (43). The heater (18) can have a cylindrical shape having a hollow interior. At least a portion of the insertion space (43) can be formed inside the heater (18). The heater (18) can extend in the longitudinal direction of the insertion space (43). The heater (18) can heat the insertion space (43) and / or the stick (S) accommodated in the insertion space (43).

[0103] The heater (18) can be combined with a heater casing (243, 244). The heater casing (243, 244) can surround the outside of the heater (18). The heater casing (243, 244) can include a first heater casing (243) and a second heater casing (244). The first heater casing (243) can surround a portion of a side surface of the heater (18). The second heater casing (244) can surround the remaining portion of the side surface of the heater (18). The first heater casing (243) and the second heater casing (244) can be combined to surround a side surface of the heater (18). The first heater casing (243) and the second heater casing (244) can be combined with the first bracket (241, see FIGS. 4 and 5) and the second bracket (242, see FIGS. 4 and 5), respectively.

[0104] The heater (18) and the heater casing (243, 244) can be accommodated in the internal space of the second body casing (111b). The internal space where the heater (18) and the heater casing (243, 244) are accommodated can be referred to as a heater receiving portion. The heater receiving portion can have a substantially cylindrical shape. The heater receiving portion can be extended in the longitudinal direction of the insertion space (43).

[0105] An inflow path (P) may be formed inside the body casing (111). The inflow path (P) may be formed inside the second body casing (111b). The inflow path (P) may be connected to the outside of the body (10) and the insertion space (43). The inflow path (P) may be connected to the insertion space (43) through the inflow hole (2424).

[0106] The inlet passage (P) may include a first passage, a third passage (P1, P2, P3). The third passage (P3) may be connected to the insertion space (43). The third passage (P3) may extend from the lower side of the insertion space (43) in a direction intersecting the longitudinal direction of the insertion space (43). The second passage (P2) may be connected to the third passage (P3). The second passage (P2) may extend from one end of the third passage (P3) in the longitudinal direction of the insertion space (43). The second passage (P2) may connect the third passage (P3) and the first passage (P1). The first passage (P1) may be connected to the second passage (P2). The first passage (P1) may extend from the upper end of the second passage (P2) in a direction intersecting the longitudinal direction of the insertion space (43). The first flow path (P1) can be connected to the outside of the body casing (111). The external air of the aerosol generator (1) can be introduced into the body (10) through a gap provided in the body (10), pass through the first flow path to the third flow path (P1, P2, P3), and flow into the insertion space (43) through the inlet hole (2424).

[0107] At least one sensor (132, 133) may be provided within the body (10). At least one sensor (132, 133) may be positioned adjacent to the insertion space (43). At least one sensor (132, 133) may be connected to a circuit board (510). At least one sensor (132, 133) may be mounted on the circuit board (510) and electrically connected to the control unit (12) through the circuit board (510).

[0108] At least one sensor (132, 133) may include a stick detection sensor (133) that detects a stick accommodated in the insertion space (43) and a puff sensor (132) that is in communication with the insertion space (43). The stick detection sensor (133) and the puff sensor (132) may be arranged adjacent to each other.

[0109] The stick detection sensor (133) may be positioned adjacent to the insertion space (43). The stick detection sensor (133) may be positioned facing the insertion space (43). The stick detection sensor (133) may be positioned at a position corresponding to an area of ​​the stick (S) inserted into the insertion space (43). The stick detection sensor (133) may detect whether the stick (S) is inserted or removed from the insertion space (43). The stick detection sensor (133) may detect at least one of the type of the stick (S) and whether the stick (S) is genuine.

[0110] The puff sensor (132) may be arranged on one side of the inflow path (P). The puff sensor (132) may output a signal corresponding to the internal pressure or internal pressure change of the inflow path (P). The puff sensor (132) may output a signal corresponding to the user's puff. The puff sensor (132) may be communicated with the inflow path (P) and the insertion space (43). The puff sensor (132) may be arranged to face a direction intersecting the direction in which the stick detection sensor (133) faces. The puff sensor (132) may be arranged to face the inflow path (P).

[0111] The circuit board (510) may be connected to a connecting board (560). At least one sensor (132, 133) may be connected to one side of the circuit board (510), and a connector (540) may be connected to the other side of the circuit board (510). The connector (540) may be mounted on the circuit board (510). The circuit board (510) may be connected to the connecting board (560) via the connector (540). The control unit (12) may be provided on the connecting board (560) or another board. The circuit board (510) may be connected to another board provided in the body (10) and / or the control unit (12) via the connecting board (560).

[0112] At least a portion of the circuit board (510) may be in contact with a heat spreader (520). The heat spreader (520) may be disposed adjacent to at least one sensor (132, 133) disposed on the circuit board (510). The heat spreader (520) may be referred to as a sensor heat spreader. The heat spreader (520) may extend in a direction in which the circuit board (510) extends. For example, the circuit board (510) may extend at least a portion in a direction away from the heater (18) (e.g., in the opposite direction of the x-direction or the opposite direction of the z-direction), and the heat spreader (520), like the circuit board (510), may extend at least a portion in a direction away from the heater (18).

[0113] The detailed structure related to the circuit board (510) and the heat spreader (520) is described in detail below through FIGS. 8 and 9, etc.

[0114]

[0115] FIG. 8 is a perspective view showing a state in which a circuit board, a heat spreader, and a TIM of an aerosol generator according to one embodiment of the present disclosure are combined, and FIG. 9 is a perspective view showing a state in which a circuit board, a heat spreader, and a TIM of an aerosol generator according to one embodiment of the present disclosure are separated.

[0116] Referring to FIGS. 8 and 9, the circuit board (510) may include a first substrate (511) to a fourth substrate (514).

[0117] The second substrate (512) may be connected to the first substrate (511) and may extend in a first direction (e.g., opposite to the x direction). The third substrate (513) may be connected to the second substrate (512) and may extend in a second direction (e.g., opposite to the z direction). The fourth substrate (514) may be connected to the third substrate (513) and may extend in a third direction (e.g., opposite to the y direction). The first substrate (511) to the fourth substrate (514) may be an integral substrate that is connected to each other.

[0118] The circuit board (510) may have a shape in which at least a portion is bent. The first connection portion (515) is disposed between the first substrate (511) and the second substrate (512) and may be bent in one direction. The second connection portion (516) is disposed between the second substrate (512) and the third substrate (513) and may be bent in a direction intersecting the direction in which the first connection portion (515) is bent. The third connection portion (517) is disposed between the third substrate (514) and the fourth substrate (514) and may be bent in a direction intersecting the direction in which the first connection portion (515) is bent. The circuit board (510) may include an FPCB (flexible printed circuit board). The circuit board (510) may include a polyimide film, but the material of the circuit board (510) is not limited thereto.

[0119] The first substrate (511) can be connected to a stick detection sensor (133). The stick detection sensor (133) can be mounted on one surface of the first substrate (511). The surface of the first substrate (511) on which the stick detection sensor (133) is mounted can face the insertion space (43). The second substrate (512) can be connected to a puff sensor (132). The puff sensor (132) can be mounted on one surface of the second substrate (512). The surface of the second substrate (512) on which the puff sensor (132) is mounted can face the inflow path (P). The direction in which the surface on which the stick detection sensor (133) is mounted on the first substrate (511) faces (e.g., x direction) and the direction in which the surface on which the puff sensor (132) is mounted on the second substrate (512) faces (e.g., the opposite direction of the z direction) may be different.

[0120] The stick detection sensor (133) and the puff sensor (132) may be arranged on the same surface of the circuit board (510) based on the thickness direction of the circuit board (510). In other words, the surface on which the stick detection sensor (133) is mounted on the first substrate (511) and the surface on which the puff sensor (132) is mounted on the second substrate (512) may form one surface that is connected to each other through the first connecting portion (515).

[0121] The third substrate (513) may be extended in a second direction. The third substrate may be referred to as an extension. The second direction may correspond to the longitudinal direction of the insertion space (43). The third substrate (513) may have a narrower width at the lower side than at the upper side. The upper portion (5131) of the third substrate may extend from one end of the second substrate (512) or the second connection portion (516), and may extend downwardly to a certain length while having a certain width. The lower portion (5132) of the third substrate may be connected to the upper portion (5131) and the fourth substrate (514), and may have a narrower width than the upper portion (5131) and may extend downwardly.

[0122] The circuit board (510) may extend downwardly below the heater (18) in the longitudinal direction of the insertion space (43) (see FIG. 7). For example, the upper portion (5131) of the third substrate may extend downwardly below the heater (18). For example, the lower portion (5132) of the third substrate may be positioned downwardly below the heater (18) in the longitudinal direction of the insertion space (43). In other words, the third substrate (513) may extend downwardly to a certain length while having a certain width, and may have a narrower width below the heater (18).

[0123] The fourth substrate (514) can be connected to a connector (540). A connector (540) can be mounted on one surface of the fourth substrate (514). The connector (540) can be connected to a connecting substrate (560). The circuit board (510) can be connected to another substrate and / or a control unit (12) provided in the body (10) through the connecting substrate (560).

[0124] The heat spreader (520) may include a first part (521) to a fourth part (524).

[0125] The second part (522) may be connected to the first part (521) and may extend in the first direction. The third part (523) may be connected to the second part (522) and may extend in the second direction. The first part (521) to the third part (523) may be an integral heat spreader connected to each other. The fourth part (524) may be arranged to be spaced apart from the first part (521) to the third part (523).

[0126] The heat spreader (520) may be formed of a material having a higher thermal conductivity than the circuit board (510). For example, the heat spreader (520) may include at least one of graphite, copper, gold, silver, nanocrystals, and aluminum.

[0127] The heat spreader (520) may be in contact with at least a portion of the circuit board (510). For example, the first part (521) may be in contact with the first substrate (511). The second part (522) may be in contact with the second substrate (512). The third part (523) may be in contact with the third substrate (513). The fourth part (524) may be in contact with the fourth substrate (514).

[0128] The heat spreader (520) may cover at least a portion of the circuit board (510). For example, the first part (521) may contact the other surface of the first substrate (511) and cover at least a portion of the other surface. The second part (522) may contact the other surface of the second substrate (512) and cover at least a portion of the other surface. The third part (523) may contact one surface of the third substrate (513) and cover at least a portion of the one surface. The fourth part (524) may contact one surface of the fourth substrate (514) and cover at least a portion of the one surface.

[0129] The heat spreader (520) may have a shape corresponding to at least a portion of the circuit board (510). For example, the first part (521) may have a shape corresponding to the first substrate (511). The second part (522) may have a shape corresponding to the second substrate (512). The third part (523) may have a shape corresponding to at least a portion of the third substrate (513). The fourth part (524) may have a shape corresponding to at least a portion of the fourth substrate (514).

[0130] The heat spreader (520) can be in contact with a surface opposite to the surface on which the stick detection sensor (133) and the puff sensor (132) are disposed. For example, the first part (521) can be in contact with a surface opposite to the surface on which the stick detection sensor (133) is mounted on the first substrate (511). The second part (522) can be in contact with a surface opposite to the surface on which the puff sensor (132) is mounted on the second substrate (512).

[0131] Accordingly, the heat spreader (520) is arranged to contact the surface opposite to the surface on which the sensors (132, 133) are arranged on the circuit board (510), thereby simplifying the structure of the heat spreader (520).

[0132] The heat spreader (520) may have a shape in which at least a portion is bent. The first bending portion (525) is positioned between the first part (521) and the second part (522) and may be bent in one direction. The second bending portion (526) is positioned between the second part (522) and the third part (523) and may be bent in a direction intersecting the direction in which the second bending portion (526) is bent.

[0133] The heat spreader (520) can be bent into a shape corresponding to the bent shape of the circuit board (510). For example, the first bending portion (525) can be bent into a shape corresponding to the bent shape of the first connecting portion (515). The second bending portion (526) can be bent into a shape corresponding to the bent shape of the second connecting portion (516).

[0134] Accordingly, the heat spreader (520) has a bent shape corresponding to the shape in which the circuit board (510) is bent, thereby increasing the contact area between the heat spreader (520) and the circuit board (510), so that heat can be effectively transferred from the sensor (132, 133) to the heat spreader (520).

[0135] In addition, since the fourth part (524) that comes into contact with the fourth substrate (514) on which the connector (540) is mounted has a structure in which it is not connected to the first to third parts (521, 522, 523) but is spaced apart, the shape of the heat spreader (520) can be prevented from being deformed or the heat spreader (520) from being damaged during the process in which the connector (540) is connected to the connecting substrate (560).

[0136] The heat spreader (520) may extend downwardly from the heater (18) in the longitudinal direction of the insertion space (43) (see FIG. 7). For example, the third part (523) may extend downwardly from the heater (18). The third part (523) may have a shape corresponding to at least a portion of the upper portion (5131) and the lower portion (5132) of the third substrate. The third part (523) may extend downwardly to a certain length while having a certain width, and may have a width that becomes narrower downwardly from the heater (18).

[0137] Accordingly, the heat spreader (520) extends lower than the heater (18), so that the heat generated by the heater (18) and transmitted to the sensor (132, 133) can be transmitted or diffused in a direction away from the heater (18) and the sensor (132, 133).

[0138] The TIM (Thermal interface materials, 530) can be in contact with the heat spreader (520). The TIM (530) can extend in a direction in which the heat spreader (520) extends. The TIM (530) can have a shape corresponding to at least a portion of the heat spreader (520). For example, the TIM (530) can have a shape corresponding to a third part (523) of the heat spreader (520) and cover one side of the third part (523). One surface of the third part (523) can be in contact with one surface of the third substrate (513) of the circuit board (510), and the other surface of the third part (523) can be in contact with one surface of the TIM (530). The TIM (530) can include thermal cream or a sealer, etc. The TIM (530) may have one surface in contact with the heat spreader (520) and the other surface in contact with at least a portion of the body casing (111).

[0139] Accordingly, the TIM (530) is placed between the heat spreader (520) and the body casing (111) and comes into contact with the heat spreader (520) and the body casing (111), thereby effectively transferring the heat emitted from the heat spreader (520) to other structures within the device.

[0140] Meanwhile, TIM (530) is not necessarily required, and the heat spreader (520) may be in direct contact with the body casing (111) to transfer heat to other structures within the device.

[0141]

[0142] Fig. 10 is a cross-sectional view of an aerosol generating device according to an embodiment of the present disclosure when viewed from the side, and Fig. 11 is a cross-sectional view of an aerosol generating device according to an embodiment of the present disclosure when viewed from the top. Fig. 10 illustrates a cross-section of a body (10) along line CC of Fig. 3, and Fig. 11 illustrates a cross-section of a body (10) along line AA of Fig. 3. In Fig. 10, the body (10) is omitted.

[0143] Referring to FIG. 10 together with FIG. 7, the heat spreader (520) may be arranged adjacent to the inlet passage (P). For example, the first part (521) and the second part (522) of the heat spreader (520) may be arranged above the first passage (P1) and adjacent to the first passage (P1). For example, the third part (523) of the heat spreader (520) may be arranged on one side of the first passage (P1) and the second passage (P2) and adjacent to the first passage (P1) and the second passage (P2). The direction in which the third part (523) extends may correspond to the direction in which the second passage (P2) extends.

[0144] When a user inhales aerosol using an aerosol generator (1), the temperature of the flowing air in the first flow path (P1) through which outside air is introduced may be lower than that in the second flow path (P2) and the third flow path (P3). In the heat spreader (520), the first part (521) and the second part (522), which are arranged adjacent to the sensors (132, 133), may receive more heat than the third part (523) and the fourth part (524).

[0145] By placing the first part (521) and the second part (522) adjacent to the first flow path (P1) through which air with a relatively lowest temperature flows, the heat spreader (520) can be effectively cooled.

[0146] In addition, since the third part (523) has a structure that extends in the direction in which the second euro (P2) extends, the heat spreader (520) can be effectively cooled.

[0147] When a user operates the aerosol generator (1) and does not inhale, a portion of the air heated by the heater (18) may flow into the inlet passage (P) through the inlet hole (2424). Even in this case, the temperature of the air flowing in the first passage (P1), which is relatively farthest away from the inlet hole (2424), may be lower than that in the second passage (P2) and the third passage (P3).

[0148] By placing the first part (521) and the second part (522) adjacent to the first flow path (P1) through which air with a relatively lowest temperature flows, the influence of heated air within the inlet flow path (P) can be minimized.

[0149]

[0150] Referring to FIG. 11 together with FIG. 10, at least one heat dissipator (300, 400) may be disposed inside the body (10). The heat dissipator (300, 400) may be referred to as a body heat dissipator or a heater heat dissipator. The first heat dissipator (300) may be disposed outside the heat spreader (520) and the heater (18) in the radial direction of the insertion space (43). The first heat dissipator (300) may surround at least a portion of the outside of the heat spreader (520) and the heater (18). The first heat dissipator (300) may be disposed spaced apart from the heat spreader (520) and the heater (18) in the radial direction of the insertion space (43). The first heat dissipator (300) may have a shape corresponding to the inner surface of the body (10). The first radiator (300) can be placed facing the inner surface of the body (10).

[0151] A second heat dissipator (400) may be disposed inside the body casing (111). The second heat dissipator (400) may be disposed in a space (114) formed between the first body casing (111a) and the second body casing (111b). This space may be referred to as a heat dissipator receiving portion. The heat dissipator receiving portion (114) may be formed between the inner surface of the first body casing (111a) and the outer surface of the second body casing (111b). The heat dissipator receiving portion (114) may be formed along the inner circumference of the first body casing (111a). The heat dissipator receiving portion (114) may extend in the longitudinal direction of the insertion space (43).

[0152] The second heat dissipator (400) may be arranged on the outside of the second body casing (111b). The second heat dissipator (400) may surround at least a portion of the second body casing (111b) in the circumferential direction of the insertion space (43). The second heat dissipator (400) may be arranged outside the heat spreader (520) and the heater (18) in the radial direction of the insertion space (43). The second heat dissipator (400) may surround at least a portion of the outside of the heat spreader (520) and the heater (18). The second heat dissipator (400) may be arranged to be spaced apart from the heat spreader (520) and the heater (18) in the radial direction of the insertion space (43). The second heat radiator (400) may be arranged so that at least a portion thereof is spaced apart from the outer wall and inner wall of the heat radiator receiving portion (114) in the radial direction of the insertion space (43). A gap may be formed between the inner surface of the second heat radiator (400) and the inner wall of the heat radiator receiving portion (114) and / or between the outer surface of the second heat radiator (400) and the outer wall of the heat radiator receiving portion (114). The second heat radiator (400) may be arranged on the inner side of the first heat radiator (300) in the radial direction of the insertion space (43).

[0153] At least a portion of the heat spreader (520) may be in contact with one side of the body casing (111). For example, the third part (523) of the heat spreader (520) may be in contact with one side of the second body casing (111b). The third part (523) of the heat spreader (520) may be disposed within a space formed in the second body casing (111b) and may be in contact with a surface adjacent to the positions where the first heat spreader (300) and the second heat spreader (400) are disposed.

[0154] Meanwhile, when TIM (530) is provided, one surface of the TIM (530) may be in contact with the heat spreader (520), and the other surface may be in contact with at least a portion of the body casing (111). The other surface of the TIM (530) may be in contact with a surface adjacent to the positions where the first heat dissipator (300) and the second heat dissipator (400) are arranged.

[0155] Accordingly, by providing at least one heat dissipator (300, 400) disposed outside the heat spreader (520), heat emitted from the heat spreader (520) can be effectively transferred to the outside of the device.

[0156]

[0157] Fig. 12 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure, viewed from the front. Fig. 12 illustrates a cross-section of the body (10) along line BB of Fig. 3. Features of the configuration of Fig. 12 that overlap with those previously disclosed in Figs. 7 to 11 will not be described in detail.

[0158] Referring to FIG. 12, at least a portion of the circuit board (510) may be in contact with a heat spreader (520). The heat spreader (520) may be disposed adjacent to at least one sensor (132, 133) disposed on the circuit board (510). The heat spreader (520) may extend in a direction in which the circuit board (510) extends. For example, the circuit board (510) may extend at least a portion in a direction away from the heater (18) (e.g., in the opposite direction of the x-direction), and the heat spreader (520) may extend at least a portion in a direction away from the heater (18), like the circuit board (510).

[0159] The body casing (111) may be provided with a support portion (111c). The support portion (111c) may protrude from one side of the heat spreader (520) toward the heat spreader (520) and may contact one side of the heat spreader (520). For example, the support portion (111c) may protrude downward toward the second part (522) of the heat spreader (520) and may contact the upper side of the second part (522) to support the second part (522).

[0160] The TIM (550) may be placed on one side of the heat spreader (520). One side of the TIM (550) may be in contact with the heat spreader (520), and the other side may be in contact with the body casing (111). For example, the TIM (550) may be placed on the upper side of the second part (522) of the heat spreader (520), so that one side may be in contact with the upper surface of the second part (522), and the other side may be in contact with the body casing (111).

[0161]

[0162] Fig. 13 is a perspective view showing a state in which a circuit board, a heat spreader, and a TIM of an aerosol generator according to an embodiment of the present disclosure are combined, and Fig. 14 is a perspective view showing a state in which a circuit board, a heat spreader, and a TIM of an aerosol generator according to an embodiment of the present disclosure are separated. Detailed descriptions of features that overlap with those disclosed in Figs. 7 to 11 among the configurations of Figs. 13 and 14 will be omitted.

[0163] Referring to FIGS. 13 and 14, the circuit board (510) may include a first substrate (511) to a fourth substrate (514).

[0164] The circuit board (510) may have a shape in which at least a portion is bent. The first connecting portion (515) is disposed between the first substrate (511) and the second substrate (512) and may be bent in one direction. The second connecting portion (516) is disposed between the second substrate (512) and the third substrate (513) and may be bent in a direction intersecting the direction in which the first connecting portion (515) is bent. The third connecting portion (517) is disposed between the third substrate (514) and the fourth substrate (514) and may be bent in a direction intersecting the direction in which the first connecting portion (515) is bent.

[0165] The first substrate (511) can be connected to a stick detection sensor (133). The stick detection sensor (133) can be mounted on one surface of the first substrate (511). The surface of the first substrate (511) on which the stick detection sensor (133) is mounted can face the insertion space (43). The second substrate (512) can be connected to a puff sensor (132). The puff sensor (132) can be mounted on one surface of the second substrate (512). The surface of the second substrate (512) on which the puff sensor (132) is mounted can face the inflow path (P). The direction in which the surface on which the stick detection sensor (133) is mounted on the first substrate (511) faces (e.g., x direction) and the direction in which the surface on which the puff sensor (132) is mounted on the second substrate (512) faces (e.g., the opposite direction of the z direction) may be different.

[0166] The stick detection sensor (133) and the puff sensor (132) may be arranged on the same surface of the circuit board (510) based on the thickness direction of the circuit board (510). In other words, the surface on which the stick detection sensor (133) is mounted on the first substrate (511) and the surface on which the puff sensor (132) is mounted on the second substrate (512) may form one surface that is connected to each other through the first connecting portion (515).

[0167] The heat spreader (520) may include a first part (521), a second part (522), and a fourth part (524).

[0168] The first part (521) can be in contact with the first substrate (511). The second part (522) can be connected to the first part (521) and extend in a first direction along which the second substrate (512) extends. The second part (522) can be in contact with the second substrate (512). The first part (521) and the second part (522) can be an integral heat spreader that are connected to each other. The fourth part (524) can be disposed spaced apart from the first part (521) and the second part (522). The fourth part (524) can be in contact with the fourth substrate (514).

[0169] The heat spreader (520) may have a shape corresponding to at least a portion of the circuit board (510). For example, the first part (521) may have a shape corresponding to the first substrate (511). The second part (522) may have a shape corresponding to the second substrate (512). The fourth part (524) may have a shape corresponding to at least a portion of the fourth substrate (514).

[0170] The heat spreader (520) can be in contact with a surface opposite to the surface on which the stick detection sensor (133) and the puff sensor (132) are disposed. For example, the first part (521) can be in contact with a surface opposite to the surface on which the stick detection sensor (133) is mounted on the first substrate (511). The second part (522) can be in contact with a surface opposite to the surface on which the puff sensor (132) is mounted on the second substrate (512).

[0171] The heat spreader (520) can be bent into a shape corresponding to the bent shape of the circuit board (510). For example, the first bending portion (525) can be bent into a shape corresponding to the bent shape of the first connecting portion (515).

[0172] The TIM (550) may be placed on one side of the heat spreader (520). The TIM (550) may be placed on the upper side of the second part (522) of the heat spreader (520), so that one side may be in contact with the upper surface of the second part (522), and the other side may be in contact with the body casing (111).

[0173] A TIM (550) may be provided with a groove (552). The groove (552) may be formed by recessing one side of the TIM (550). The groove (552) may surround at least a portion of the support member (111c). The support member (111c) may penetrate the groove (552) and contact a portion of the heat spreader (520) exposed on the lower side of the groove (552) to support the heat spreader (520).

[0174] Accordingly, the heat spreader (520) is firmly supported within the body casing (111), and at the same time, the heat emitted from the heat spreader (520) can be effectively transferred to other structures within the device through the TIM (550).

[0175]

[0176] Fig. 15 is a cross-sectional view of an aerosol generating device according to an embodiment of the present disclosure, viewed from the side. Fig. 15 illustrates a cross-section of a body (10) along line CC of Fig. 3. In Fig. 15, the body (10) is omitted. Features of the configuration of Fig. 15 that overlap with those previously disclosed in Figs. 7 to 11 will not be described in detail.

[0177] Referring to FIG. 15 together with FIG. 12, the heat spreader (520) may be positioned adjacent to the inlet passage (P). For example, the first part (521) and the second part (522) of the heat spreader (520) may be positioned above the first passage (P1) and adjacent to the first passage (P1).

[0178] When a user inhales aerosol using an aerosol generating device (1), the temperature of the air flowing through the first passage (P1) into which outside air is introduced may be lower than that of the second passage (P2) and the third passage (P3).

[0179] By placing the first part (521) and the second part (522) adjacent to the first flow path (P1) through which air with a relatively lowest temperature flows, the heat spreader (520) can be effectively cooled.

[0180] When the user operates the aerosol generator (1) and does not inhale, a portion of the air heated by the heater (18) may flow into the inlet passage (P) through the inlet hole (2424). Even in this case, the temperature of the air flowing in the first passage (P1), which is relatively farthest away from the inlet hole (2424), may be lower than that in the second passage (P2) and the third passage (P3).

[0181] By placing the first part (521) and the second part (522) adjacent to the first flow path (P1) through which air with a relatively lowest temperature flows, the influence of heated air within the inlet flow path (P) can be minimized.

[0182]

[0183] Fig. 16 is a block diagram of an aerosol generating device (1) according to one embodiment of the present disclosure.

[0184] The aerosol generator (1) may include a power source (11), a control unit (12), a sensor (13), an output unit (14), an input unit (15), a communication unit (16), a memory (17), and at least one heater (18, 24). However, the internal structure of the aerosol generator (1) is not limited to that illustrated in Fig. 16. That is, a person having ordinary skill in the art related to the present embodiment will understand that some of the components illustrated in Fig. 16 may be omitted or new components may be added depending on the design of the aerosol generator (1).

[0185] The sensor (13) can detect the status of the aerosol generator (1) or the status around the aerosol generator (1) and transmit the detected information to the control unit (12). Based on the detected information, the control unit (12) can control the aerosol generator (1) so that various functions such as controlling the operation of the cartridge heater (24) and / or heater (18), restricting smoking, determining whether a stick (S) and / or cartridge (19) is inserted, and displaying a notification are performed.

[0186] The sensor (13) may include at least one of a temperature sensor (131), a puff sensor (132), an insertion detection sensor (133), a reuse detection sensor (134), a motion detection sensor (137), and a humidity sensor (138).

[0187] The temperature sensor (131) can detect the temperature at which the cartridge heater (24) and / or the heater (18) is heated. The aerosol generator (1) may include a separate temperature sensor that detects the temperature of the cartridge heater (24) and / or the heater (18), or the cartridge heater (24) and / or the heater (18) itself may serve as a temperature sensor.

[0188] The temperature sensor (131) can output a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18). For example, the temperature sensor (131) can include a resistance element whose resistance value changes in response to a change in the temperature of the cartridge heater (24) and / or the heater (18). It can be implemented by a thermistor, which is an element that utilizes the property of changing resistance depending on temperature. At this time, the temperature sensor (131) can output a signal corresponding to the resistance value of the resistance element as a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18). For example, the temperature sensor (131) can be configured as a sensor that detects the resistance value of the cartridge heater (24) and / or the heater (18). At this time, the temperature sensor (131) can output a signal corresponding to the resistance value of the cartridge heater (24) and / or the heater (18) as a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18).

[0189] A temperature sensor (131) may be placed around the power source (11) to monitor the temperature of the power source (11). The temperature sensor (131) may be placed adjacent to the power source (11). For example, the temperature sensor (131) may be attached to one side of a battery, which is the power source (11). For example, the temperature sensor (131) may be mounted on one side of a printed circuit board.

[0190] A temperature sensor (131) is placed inside the body (10) and can detect the internal temperature of the body (10).

[0191] The puff sensor (132) can detect the user's puff based on various physical changes in the airflow path. The puff sensor (132) can output a signal corresponding to the puff. For example, the puff sensor (132) can be a pressure sensor. The puff sensor (132) can output a signal corresponding to the internal pressure of the aerosol generating device. Here, the internal pressure of the aerosol generating device (1) can correspond to the pressure of the airflow path through which the gas flows. The puff sensor (132) can be arranged in correspondence to the airflow path through which the gas flows in the aerosol generating device (1).

[0192] The stick detection sensor (133) can detect insertion and / or removal of the stick (S). The stick detection sensor may be referred to as an insertion detection sensor. The insertion detection sensor (133) can detect a signal change according to the insertion and / or removal of the stick (S). The insertion detection sensor (133) may be installed around the insertion space. The insertion detection sensor (133) can detect the insertion and / or removal of the stick (S) according to a change in permittivity within the insertion space. For example, the insertion detection sensor (133) may be an inductive sensor and / or a capacitance sensor.

[0193] An inductive sensor may include at least one coil. The coil of the inductive sensor may be positioned adjacent to an insertion space. For example, when a magnetic field changes around a current-flowing coil, the characteristics of the current flowing in the coil may change according to Faraday's law of electromagnetic induction. Here, the characteristics of the current flowing in the coil may include the frequency of the alternating current, the current value, the voltage value, the inductance value, the impedance value, etc.

[0194] An inductive sensor can output a signal corresponding to the characteristics of the current flowing through the coil. For example, an inductive sensor can output a signal corresponding to the inductance value of the coil.

[0195] A capacitance sensor may include a conductor. The conductor of the capacitance sensor may be positioned adjacent to the insertion space. The capacitance sensor may output a signal corresponding to the electromagnetic properties of the surroundings, for example, the electrostatic capacitance around the conductor. For example, when a stick (S) including a wrapper made of a metallic material is inserted into the insertion space, the electromagnetic properties around the conductor may be changed by the wrapper of the stick (S).

[0196] A reuse detection sensor (134) can detect whether the stick (S) has been reused. The reuse detection sensor (134) may be a color sensor. The color sensor can detect the color of the stick (S). The color sensor can detect the color of a portion of a wrapper that wraps the outside of the stick (S). The color sensor can detect a value for an optical characteristic corresponding to the color of an object based on light reflected from the object. For example, the optical characteristic may be a wavelength of light. The color sensor may be implemented as a single component with the proximity sensor, or may be implemented as a separate component distinct from the proximity sensor.

[0197] At least some of the wrappers constituting the stick (S) may change color due to the aerosol. The reuse detection sensor (134) may be positioned corresponding to a position where at least some of the wrappers whose color changes due to the aerosol are disposed when the stick (S) is inserted into the insertion space. For example, before the stick (S) is used by a user, the color of at least some of the wrappers may be a first color. At this time, as at least some of the wrappers are wetted by the aerosol generated by the aerosol generating device (1) while passing through the stick (S), the color of at least some of the wrappers may change to a second color. Meanwhile, the color of at least some of the wrappers may be maintained at the second color after changing from the first color to the second color.

[0198] A motion detection sensor (137) can detect the movement of the aerosol generating device. The motion detection sensor (137) can be implemented with at least one of an acceleration sensor and a gyro sensor.

[0199] The humidity sensor (138) can detect the humidity of the aerosol generator and / or the cartridge. The humidity sensor (138) can detect the humidity of the outside air and / or the humidity inside the cartridge. The humidity sensor (138) can be implemented by a capacitive sensor, etc. The humidity sensor (138) can be placed on the outside of the body (10) or located on a path through which outside air flows in, and can measure the humidity around the aerosol generator (1). The humidity sensor (138) can be located in the storage unit (C1) of the cartridge (19), and can measure the humidity inside the cartridge (19).

[0200] In addition to the sensors (131 to 138) described above, the sensor (13) may further include at least one of a barometric pressure sensor, a magnetic sensor, a position sensor (GPS), and a proximity sensor. Since the functions of each sensor can be intuitively inferred by a person skilled in the art from its name, a detailed description thereof may be omitted.

[0201] The output unit (14) can output information on the status of the aerosol generator (1) and provide it to the user. The output unit (14) may include at least one of a display (141), a haptic unit (142), and an audio output unit (143), but is not limited thereto. When the display (141) and the touch pad form a layered structure to form a touch screen, the display unit (141) can be used as an input device in addition to an output device.

[0202] The display (141) can visually provide information about the aerosol generator (1) to the user. For example, the information about the aerosol generator (1) may refer to various information such as the charging / discharging status of the power supply (11) of the aerosol generator (1), the preheating status of the heater (18), the insertion / removal status of the stick (S) and / or cartridge (19), the mounting / removal status of the upper case, or the status in which the use of the aerosol generator (1) is restricted (e.g., detection of an abnormal item), and the display (141) can output the above information to the outside. For example, the display (141) may be in the form of an LED light-emitting element. For example, the display (141) may be a liquid crystal display panel (LCD), an organic light-emitting display panel (OLED), etc.

[0203] The haptic unit (142) can provide tactile information about the aerosol generator (1) to the user by converting an electrical signal into a mechanical stimulus or an electrical stimulus. For example, the haptic unit (142) can generate a vibration corresponding to the completion of the initial preheating when the initial power is supplied to the cartridge heater (24) and / or heater (18) for a set period of time. The haptic unit (142) can include a vibration motor, a piezoelectric element, or an electrical stimulation device.

[0204] The acoustic output unit (143) can provide information about the aerosol generator (1) to the user audibly. For example, the acoustic output unit (143) can convert an electrical signal into an acoustic signal and output it to the outside.

[0205] The power source (11) can supply power used to operate the aerosol generator (1). The power source (11) can supply power so that the cartridge heater (24) and / or the heater (18) can be heated. In addition, the power source (11) can supply power required for the operation of other components provided in the aerosol generator (1), such as a sensor (13), an output unit (14), an input unit (15), a communication unit (16), and a memory (17). The power source (11) can be a rechargeable battery or a disposable battery. For example, the power source (11) can be a lithium polymer (LiPoly) battery, but is not limited thereto.

[0206] Although not shown in FIG. 16, the aerosol generator (1) may further include a power protection circuit. The power protection circuit may be electrically connected to the power source (11) and include a switching element.

[0207] The power protection circuit can block the power supply (11) according to certain conditions. For example, the power protection circuit can block the power supply (11) when the voltage level of the power supply (11) is higher than a first voltage corresponding to overcharge. For example, the power protection circuit can block the power supply (11) when the voltage level of the power supply (11) is lower than a second voltage corresponding to overdischarge.

[0208] The heater (18) can receive power from the power source (11) and heat the medium or aerosol generating material within the stick (S). Although not illustrated in FIG. 16, the aerosol generating device (1) may further include a power conversion circuit (e.g., a DC / DC converter) that converts the power of the power source (11) and supplies it to the cartridge heater (24) and / or the heater (18). In addition, when the aerosol generating device (1) generates the aerosol by induction heating, the aerosol generating device (1) may further include a DC / AC converter that converts the direct current power of the power source (11) into alternating current power.

[0209] The control unit (12), sensor (13), output unit (14), input unit (15), communication unit (16), and memory (17) can receive power from the power source (11) and perform their functions. Although not illustrated in FIG. 16, the device may further include a power conversion circuit, such as an LDO (low dropout) circuit or a voltage regulator circuit, that converts the power of the power source (11) and supplies it to each component. In addition, although not illustrated in FIG. 16, a noise filter may be provided between the power source (11) and the heater (18). The noise filter may be a low pass filter. The low pass filter may include at least one inductor and a capacitor. The cutoff frequency of the low pass filter may correspond to the frequency of the high frequency switching current applied from the power source (11) to the heater (18). The low pass filter can prevent high frequency noise components from being applied to a sensor (13), such as an insertion detection sensor (133).

[0210] In one embodiment, the cartridge heater (24) and / or heater (18) may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials may be metals or metal alloys including, but not limited to, titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, and the like. Additionally, the heater (18) may be implemented as, but not limited to, a metal wire, a metal plate having a track disposed thereon, a ceramic heater, and the like.

[0211] In another embodiment, the heater (18) may be an induction heating type heater. For example, the heater (18) may include a susceptor that heats the aerosol generating material by generating heat through a magnetic field applied by a coil.

[0212] The input unit (15) can receive information input from a user or output information to the user. For example, the input unit (15) can be a touch panel. The touch panel can include at least one touch sensor that detects touch. For example, the touch sensor can include, but is not limited to, a capacitive touch sensor, a resistive touch sensor, a surface acoustic wave touch sensor, an infrared touch sensor, etc.

[0213] The display (141) and the touch panel may be implemented as a single panel. For example, the touch panel may be inserted into the display (141) (on-cell type or in-cell type). For example, the touch panel may be added-on to the display panel (141).

[0214] Meanwhile, the input unit (15) may include, but is not limited to, buttons, key pads, dome switches, jog wheels, jog switches, etc.

[0215] The memory (17) is hardware that stores various data processed in the aerosol generator (1), and can store data processed and data to be processed in the control unit (12). The memory (17) may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The memory (17) may store data on the operation time of the aerosol generator (1), the maximum number of puffs, the current number of puffs, at least one temperature profile, and a user's smoking pattern.

[0216] The communication unit (16) may include at least one component for communication with another electronic device. For example, the communication unit (16) may include at least one of a short-range communication unit and a wireless communication unit.

[0217] The short-range wireless communication unit may include, but is not limited to, a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a near field communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, an UWB (ultra wideband) communication unit, an Ant+ communication unit, etc.

[0218]

[0219] *204 The wireless communication unit may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., LAN or WAN) communication unit, etc.

[0220] Although not shown in FIG. 16, the aerosol generator (1) further includes a connection interface such as a USB (universal serial bus) interface, and can transmit and receive information or charge a power source (11) by connecting to another external device through a connection interface such as a USB interface.

[0221] The control unit (12) can control the overall operation of the aerosol generator (1). In one embodiment, the control unit (12) may include at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. Furthermore, it will be understood by those skilled in the art to which the present embodiment pertains that the processor may be implemented as other types of hardware.

[0222] The control unit (12) can control the temperature of the heater (18) by controlling the supply of power from the power source (11) to the heater (18). The control unit (12) can control the temperature of the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18) sensed by the temperature sensor (131). The control unit (12) can adjust the power supplied to the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18). For example, the control unit (12) can determine a target temperature for the cartridge heater (24) and / or the heater (18) based on a temperature profile stored in the memory (17).

[0223] The aerosol generator (1) may include a power supply circuit (not shown) electrically connected to the power supply (11) between the power supply (11) and the cartridge heater (24) and / or the heater (18). The power supply circuit may be electrically connected to the cartridge heater (24), the heater (18), or the induction coil (181). The power supply circuit may include at least one switching element. The switching element may be implemented by a bipolar junction transistor (BJT), a field effect transistor (FET), or the like. The control unit (12) may control the power supply circuit.

[0224] The control unit (12) can control power supply by controlling the switching of the switching elements of the power supply circuit. The power supply circuit may be an inverter that converts direct current power output from the power source (11) into alternating current power. For example, the inverter may be configured as a full-bridge circuit or a half-bridge circuit including a plurality of switching elements.

[0225] The control unit (12) can turn on the switching element so that power is supplied from the power source (11) to the cartridge heater (24) and / or the heater (18). The control unit (12) can turn off the switching element so that power is cut off to the cartridge heater (24) and / or the heater (18). The control unit (12) can control the current supplied from the power source (11) by controlling the frequency and / or duty ratio of the current pulse input to the switching element.

[0226] The control unit (12) can control the voltage output from the power source (11) by controlling the switching of the switching element of the power supply circuit. The power conversion circuit can convert the voltage output from the power source (11). For example, the power conversion circuit can include a buck converter that steps down the voltage output from the power source (11). For example, the power conversion circuit can be implemented using a buck-boost converter, a zener diode, etc.

[0227] The control unit (12) can control the on / off operation of the switching element included in the power conversion circuit to adjust the level of the voltage output from the power conversion circuit. When the on state of the switching element continues, the level of the voltage output from the power conversion circuit may correspond to the level of the voltage output from the power source (11). The duty ratio for the on / off operation of the switching element may correspond to the ratio of the voltage output from the power conversion circuit to the voltage output from the power source (11). As the duty ratio for the on / off operation of the switching element decreases, the level of the voltage output from the power conversion circuit may decrease. The heater (18) can be heated based on the voltage output from the power conversion circuit.

[0228] The control unit (12) can control power to be supplied to the heater (18) using at least one of the pulse width modulation (PWM) method and the proportional-integral-differential (PID) method.

[0229] For example, the control unit (12) can control a current pulse having a predetermined frequency and duty ratio to be supplied to the heater (18) using the PWM method. The control unit (12) can control the power supplied to the heater (18) by adjusting the frequency and duty ratio of the current pulse.

[0230] For example, the control unit (12) can determine a target temperature that is the target of control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18) by using the PID method, which is a feedback control method using a difference value between the temperature of the heater (18) and the target temperature, a value obtained by integrating the difference value over time, and a value obtained by differentiating the difference value over time.

[0231] The control unit (12) can prevent the cartridge heater (24) and / or the heater (18) from overheating. For example, the control unit (12) can control the operation of the power conversion circuit so that the supply of power to the cartridge heater (24) and / or the heater (18) is cut off based on the temperature of the cartridge heater (24) and / or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can reduce the amount of power supplied to the cartridge heater (24) and / or the heater (18) by a certain percentage based on the temperature of the cartridge heater (24) and / or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can determine that the aerosol generating substance contained in the cartridge (19) is exhausted based on the temperature of the cartridge heater (24) exceeding the limit temperature, and can cut off the supply of power to the cartridge heater (24).

[0232] The control unit (12) can control the charging and discharging of the power source (11). The control unit (12) can check the temperature of the power source (11) based on the output signal of the temperature sensor (131).

[0233] When a power line is connected to the battery terminal of the aerosol generator (1), the control unit (12) can check whether the temperature of the power source (11) is higher than or equal to the first limit temperature, which is a standard for blocking charging of the power source (11). If the temperature of the power source (11) is lower than the first limit temperature, the control unit (12) can control the power source (11) to be charged based on a preset charging current. If the temperature of the power source (11) is higher than or equal to the first limit temperature, the control unit (12) can block charging of the power source (11).

[0234] When the power of the aerosol generator (1) is turned on, the control unit (12) can check whether the temperature of the power source (11) is higher than or equal to the second limit temperature, which is a standard for blocking discharge of the power source (11). If the temperature of the power source (11) is lower than the second limit temperature, the control unit (12) can control to use the power stored in the power source (11). If the temperature of the power source (11) is higher than or equal to the second limit temperature, the control unit (12) can stop using the power stored in the power source (11).

[0235] The control unit (12) can calculate the remaining capacity of the power stored in the power source (11). For example, the control unit (12) can calculate the remaining capacity of the power source (11) based on the voltage and / or current sensing values ​​of the power source (11).

[0236] The control unit (12) can determine whether a stick (S) is inserted into the insertion space through the insertion detection sensor (133). The control unit (12) can determine that the stick (S) is inserted based on the output signal of the insertion detection sensor (133). If it is determined that the stick (S) is inserted into the insertion space, the control unit (12) can control to supply power to the cartridge heater (24) and / or the heater (18). For example, the control unit (12) can supply power to the cartridge heater (24) and / or the heater (18) based on the temperature profile stored in the memory (17).

[0237] The control unit (12) can determine whether the stick (S) is removed from the insertion space. For example, the control unit (12) can determine whether the stick (S) is removed from the insertion space through the insertion detection sensor (133). For example, the control unit (12) can determine that the stick (S) is removed from the insertion space when the temperature of the heater (18) is higher than a limited temperature or when the temperature change slope of the heater (18) is higher than a set slope. When it is determined that the stick (S) is removed from the insertion space, the control unit (12) can cut off the power supply to the cartridge heater (24) and / or the heater (18).

[0238] The control unit (12) can control the power supply time and / or power supply amount to the heater (18) according to the state of the stick (S) detected by the sensor (13). The control unit (12) can check the level range that includes the level of the signal of the capacitance sensor based on a lookup table. The control unit (12) can determine the moisture content of the stick (S) according to the checked level range.

[0239] When the stick (S) is in an over-humidified state, the control unit (12) can control the power supply time to the heater (18) to increase the preheating time of the stick (S) compared to the normal state.

[0240] The control unit (12) can determine whether the stick (S) inserted into the insertion space has been reused through the reuse detection sensor (134). For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor with a first reference range that includes a first color, and if the sensing value is included in the first reference range, it can determine that the stick (S) has not been used. For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor with a second reference range that includes a second color, and if the sensing value is included in the second reference range, it can determine that the stick (S) has been used. If it is determined that the stick (S) has been used, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or the heater (18).

[0241] The control unit (12) can determine whether the aerosol generating material of the cartridge (19) is exhausted. For example, the control unit (12) can preheat the cartridge heater (24) and / or the heater (18) by applying power, and determine whether the temperature of the cartridge heater (24) exceeds a limited temperature during the preheating period. If the temperature of the cartridge heater (24) exceeds the limited temperature, the control unit (12) can determine that the aerosol generating material of the cartridge (19) is exhausted. If the control unit (12) determines that the aerosol generating material of the cartridge (19) is exhausted, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or the heater (18).

[0242] The control unit (12) can make a judgment regarding the user's inhalation through the puff sensor (132). For example, the control unit (12) can determine whether a puff has been generated based on the sensing value of the signal of the puff sensor. For example, the control unit (12) can determine the intensity of the puff based on the sensing value of the signal of the puff sensor (132). If the number of puffs reaches a preset maximum number of puffs or if no puffs are detected for a preset time or longer, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or heater (18).

[0243] The control unit (12) can control the output unit (14) based on the result detected by the sensor (13). For example, when the number of puffs counted through the puff sensor (132) reaches a preset number, the control unit (12) can notify the user that the aerosol generator (1) will soon be terminated through at least one of the display (141), the haptic unit (142), and the sound output unit (143). For example, the control unit (12) can notify the user through the output unit (14) based on the determination that the stick (S) does not exist in the insertion space. For example, the control unit (12) can notify the user through the output unit (14) based on the determination that the cartridge (19) and / or the upper case is not mounted. For example, the control unit (12) can transmit information about the temperature of the cartridge heater (24) and / or the heater (18) to the user through the output unit (14).

[0244] The control unit (12) can store and update the history of the event that occurred in the memory (17) based on the occurrence of a predetermined event. The event may include operations such as detection of insertion of the stick (S), initiation of heating of the stick (S), detection of puff, termination of puff, detection of overheating of the cartridge heater (24) and / or heater (18), detection of overvoltage application to the cartridge heater (24) and / or heater (18), termination of heating of the stick (S), power on / off of the aerosol generator (1), initiation of charging of the power supply (11), detection of overcharge of the power supply (11), termination of charging of the power supply (11), etc. performed in the aerosol generator (1). The history of the event may include the date and time when the event occurred, log data corresponding to the event, etc. For example, when the predetermined event is detection of insertion of the stick (S), the log data corresponding to the event may include data on the sensing value of the insertion detection sensor (133), etc. For example, if a given event is overheating detection of the cartridge heater (24) and / or heater (18), log data corresponding to the event may include data on the temperature of the cartridge heater (24) and / or heater (18), the voltage applied to the cartridge heater (24) and / or heater (18), the current flowing through the cartridge heater (24) and / or heater (18), etc.

[0245] The control unit (12) can control to form a communication link with an external device, such as a user's mobile terminal. When data regarding authentication is received from the external device through the communication link, the control unit (12) can release the restriction on the use of at least one function of the aerosol generator (1). Here, the data regarding authentication can include data indicating completion of user authentication for a user corresponding to the external device. The user can perform user authentication through the external device. The external device can determine whether user data is valid based on the user's birthday, a unique number representing the user, etc., and can receive data regarding the use authority of the aerosol generator (1) from an external server. The external device can transmit data indicating completion of user authentication to the aerosol generator (1) based on the data regarding the use authority. When the user authentication is completed, the control unit (12) can release the restriction on the use of at least one function of the aerosol generator (1). For example, the control unit (12) can release the restriction on the use of the heating function that supplies power to the heater (18) when user authentication is completed.

[0246] The control unit (12) can transmit data on the status of the aerosol generator (1) to an external device via a communication link formed with the external device. Based on the received status data, the external device can output the remaining capacity of the power supply (11) of the aerosol generator (1), the operation mode, etc. through the display of the external device.

[0247] An external device may transmit a location search request to the aerosol generator (1) based on an input that initiates location search of the aerosol generator (1). When receiving a location search request from the external device, the control unit (12) may control at least one of the output devices to perform an operation corresponding to the location search based on the received location search request. For example, in response to the location search request, the haptic unit (142) may generate vibration. For example, in response to the location search request, the display (141) may output an object corresponding to the location search and the end of the search.

[0248] The control unit (12) can control to perform a firmware update when receiving firmware data from an external device. The external device can check the current version of the firmware of the aerosol generator (1) and determine whether a new version of the firmware exists. When an input requesting firmware download is received, the external device can receive a new version of the firmware data and transmit the new version of the firmware data to the aerosol generator (1). The control unit (12) can control to perform a firmware update of the aerosol generator (1) upon receiving a new version of the firmware data.

[0249] The control unit (12) can transmit data on the sensing value of at least one sensor (13) to an external server (not shown) through the communication unit (16), and receive and store a learning model generated by learning the sensing value through machine learning such as deep learning from the server. The control unit (12) can perform an operation of determining a user's inhalation pattern, an operation of generating a temperature profile, etc. using the learning model received from the server. The control unit (12) can store, in the memory (17), the sensing value data of at least one sensor (13) and data for learning an artificial neural network (ANN). For example, the memory (17) can store a database for each component provided in the aerosol generating device (1) for learning the artificial neural network (ANN), and weights and biases forming the artificial neural network (ANN) structure. The control unit (12) can learn data on the sensing values ​​of at least one sensor (13), the user's suction pattern, the temperature profile, etc., stored in the memory (17), and generate at least one learning model used for determining the user's suction pattern, generating the temperature profile, etc.

[0250]

[0251] As described above, according to at least one embodiment of the present disclosure, a heat spreader is provided that is in contact with a circuit board connected to at least one sensor and extends in a direction away from the heater, thereby diffusing heat generated by the heater and transferred to the sensor, thereby minimizing an increase in the temperature of the sensor.

[0252] According to at least one embodiment of the present disclosure, the heat spreader is arranged to contact a surface opposite to a surface on which sensors are arranged on the circuit board, thereby simplifying the structure of the heat spreader.

[0253] According to at least one embodiment of the present disclosure, the heat spreader has a bent shape corresponding to the shape in which the circuit board is bent, thereby increasing the contact area between the heat spreader and the circuit board, so that heat can be effectively transferred from the sensor to the heat spreader.

[0254] According to at least one embodiment of the present disclosure, the heat spreader extends below the heater so as to transmit or diffuse heat generated by the heater and transmitted to the sensor in a direction away from the heater and the sensor.

[0255] According to at least one embodiment of the present disclosure, a heat spreader is disposed adjacent to an inlet passage, so that the heat spreader can be cooled by outside air flowing through the inlet passage.

[0256] According to at least one embodiment of the present disclosure, at least one heat dissipator is provided disposed outside the heat spreader, so as to effectively transfer heat emitted from the heat spreader to the outside of the device.

[0257] According to at least one embodiment of the present disclosure, a TIM is provided between a heat spreader and a body casing and in contact with the heat spreader and the body casing, thereby effectively transferring heat emitted from the heat spreader to other structures within the device.

[0258]

[0259] Referring to FIGS. 1 to 16, an aerosol generating device (1) according to one aspect of the present disclosure includes: a heater (18) for heating the insertion space (43); at least one sensor (132, 133) disposed adjacent to the insertion space (43); a circuit board (510) on which the at least one sensor (132, 133) is disposed; and a heat spreader (520) in contact with the circuit board (510), wherein at least a portion of the heat spreader (520) may extend in a direction spaced apart from the heater (18).

[0260] In addition, according to another aspect of the present disclosure, the at least one sensor (132, 133) includes a stick detection sensor (133) that detects a stick accommodated in the insertion space (43); and a puff sensor (132) that is in communication with the insertion space (43); wherein the stick detection sensor (133) is arranged to face the insertion space (43), and the puff sensor (132) may be arranged to face a direction intersecting the direction in which the stick detection sensor (133) faces.

[0261] In addition, according to another aspect of the present disclosure, the stick detection sensor (133) and the puff sensor (132) are disposed on the same surface of the circuit board (510) based on the thickness direction of the circuit board (510), and the heat spreader (520) can be in contact with a surface opposite to the surface on which the stick detection sensor (133) and the puff sensor (132) are disposed.

[0262] In addition, according to another aspect of the present disclosure, the circuit board (510) includes a first connecting portion (515) that is bent between the stick detection sensor (133) and the puff sensor (132), and the heat spreader (520) can be bent into a shape corresponding to the shape in which the first connecting portion (515) is bent.

[0263] In addition, according to another aspect of the present disclosure, the circuit board (510) includes a second connecting portion (516) that is spaced apart from the first connecting portion (515) and is bent in a direction crossing the direction in which the first connecting portion (515) is bent; and an extension portion (513) that is elongated in one direction from the second connecting portion (516), and the heat spreader (520) can be bent in a shape corresponding to a shape in which the second connecting portion (516) is bent, and can be elongated in a shape corresponding to a shape in which the extension portion (513) is extended.

[0264] Additionally, according to another aspect of the present disclosure, the heat spreader (520) may extend downward from the heater (18) in the longitudinal direction of the insertion space (43).

[0265] In addition, according to another aspect of the present disclosure, the heat spreader (520) may be disposed adjacent to the inflow path (P) that is connected to the insertion space (43) and through which outside air is introduced.

[0266] In addition, according to another aspect of the present disclosure, the body casing (111) is disposed inside the body (10) and has the inflow path (P) formed therein, and the heat spreader (520) is disposed inside the body casing (111) and can be in contact with one side of the body casing (111).

[0267] In addition, according to another aspect of the present disclosure, it may include at least one heat dissipator (300, 400) disposed within the body casing (111) and disposed outside the heat spreader (520) in the radial direction of the insertion space (43).

[0268] Additionally, according to another aspect of the present disclosure, the heat spreader (520) may extend in an extending direction and include a TIM (530, 550) in contact with the heat spreader (520).

[0269] In addition, according to another aspect of the present disclosure, a body casing (111) is disposed inside the body (10) and supports the body (10), and the TIM (530, 550) may have one surface in contact with the heat spreader (520) and the other surface in contact with the body casing (111).

[0270] In addition, according to another aspect of the present disclosure, the body casing (111) may include a support portion (111c) that protrudes toward the heat spreader (520) and contacts one side of the heat spreader (520), and the TIM (550) may include a groove (552) that is formed with one side recessed and surrounds at least a portion of the support portion (111c).

[0271] In addition, according to another aspect of the present disclosure, the circuit board (510) includes a flexible printed circuit board (FPCB), and the heat spreader (520) may be formed of a material having a higher thermal conductivity than the circuit board (510).

[0272] Additionally, according to another aspect of the present disclosure, the heat spreader (520) may include at least one of graphite, copper, gold, silver, nanocrystals, and aluminum.

[0273]

[0274] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0275] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0276] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. A body providing an insertion space with one side open; A heater for heating the above insertion space; At least one sensor positioned adjacent to the insertion space; a circuit board on which at least one sensor is arranged; and Including a heat spreader in contact with the circuit board, The above thermal diffuser is, An aerosol generating device, at least a portion of which extends in a direction away from the heater.

2. In paragraph 1, At least one sensor above, A stick detection sensor that detects a stick accommodated in the above insertion space; and A puff sensor communicating with the above insertion space; The above stick detection sensor is positioned toward the insertion space, An aerosol generating device in which the above puff sensor is positioned so as to face a direction intersecting the direction in which the above stick detection sensor faces.

3. In paragraph 2, The above stick detection sensor and the above puff sensor, Based on the thickness direction of the circuit board, it is placed on the same surface of the circuit board, The above thermal diffuser is, An aerosol generating device that contacts a surface opposite to the surface on which the stick detection sensor and the puff sensor are arranged.

4. In paragraph 2, The above circuit board, A first connecting portion that is bent between the stick detection sensor and the puff sensor is included, The above thermal diffuser is, An aerosol generating device in which the first connecting portion is bent into a shape corresponding to the bent shape.

5. In paragraph 4, The above circuit board, A second connecting portion spaced apart from the first connecting portion and bent in a direction intersecting the direction in which the first connecting portion is bent; and Including an extension portion extending in one direction from the second connecting portion, The above thermal diffuser is, An aerosol generating device in which the second connecting portion is bent into a shape corresponding to the bent shape and the extension portion is extended into a shape corresponding to the extended shape.

6. In paragraph 5, The above thermal diffuser is, An aerosol generating device extending downward from the heater in the longitudinal direction of the above insertion space.

7. In paragraph 1, It includes an inlet passage that is connected to the above insertion space and through which outside air is introduced, The above thermal diffuser is, An aerosol generating device positioned adjacent to the above inflow path.

8. In paragraph 7, A body casing is disposed inside the body and has the inflow path formed therein, The above thermal diffuser is, An aerosol generating device disposed within the body casing and in contact with one side of the body casing.

9. In paragraph 8, An aerosol generating device comprising at least one heat dissipator disposed within the body casing and disposed outside the heat dissipator in the radial direction of the insertion space.

10. In paragraph 1, An aerosol generating device further comprising a TIM extending in the direction in which the heat spreader extends and coming into contact with the heat spreader.

11. In paragraph 10, A body casing is disposed inside the body and supports the body, The above TIM is, An aerosol generating device having one side in contact with the heat spreader and the other side in contact with the body casing.

12. In paragraph 11, The above body casing is, It includes a support portion that protrudes toward the heat spreader and comes into contact with one side of the heat spreader, The above TIM is, An aerosol generating device comprising a groove formed by indentation on one side and surrounding at least a portion of the support.

13. In paragraph 1, The above circuit board, Includes FPCB (flexible printed circuit board), An aerosol generating device in which the above heat spreader is formed of a material having a higher thermal conductivity than the above circuit board.

14. In paragraph 1, The above thermal diffuser is, An aerosol generating device comprising at least one of graphite, copper, gold, silver, nanocrystals and aluminum.

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