Nicotine vaping section, and nicotine vaping device including the nicotine vaping section

Abstract

The nicotine e-vapor section (12) includes a housing (13), a wick (64) within a chamber (72) defined within the housing (13), a heater (60) in heating proximity to the wick (64), and a reservoir (62) configured to contain a nicotine pre-vapor formulation including nicotine. The nicotine e-vapor section (12) defines at least one first channel (66), the at least one first channel (66) configured to communicate the nicotine pre-vapor formulation from the reservoir (62) to the wick (64). The nicotine e-vapor section (12) further defines at least one first air passage (68), the at least one first air passage (68) configured to allow air to enter the reservoir (62). The nicotine e-vapor device (10) includes the nicotine e-vapor section (12).

Description

Technical Field

[0001] Exemplary embodiments generally relate to a nicotine e-vaping section and a nicotine e-vaping device including the nicotine e-vaping section.

Background Art

[0002] A nicotine e-vaping device uses a heater to at least partially volatilize a nicotine pre-vapor formulation to produce a nicotine vapor.

Summary of the Invention

[0003] At least one exemplary embodiment is directed to a nicotine e-vaping section.

[0004] In one exemplary embodiment, the nicotine e-vaping section includes a housing, a core within a chamber defined within the housing, a heater in heating proximity to the core, and a reservoir configured to contain a nicotine pre-vapor formulation, the nicotine pre-vapor formulation including nicotine, the nicotine e-vaping section defining at least one first channel configured to communicate the nicotine pre-vapor formulation from the reservoir to the core, and the nicotine e-vaping section further defining at least one first air passage configured to enable air to enter the reservoir.

[0005] In one exemplary embodiment, the total flow area of the at least one first channel is greater than the total flow area of the at least one first air passage.

[0006] In one exemplary embodiment, the total flow area of the at least one first channel is from about 0.75 square millimeters to 1.25 square millimeters, and the total flow area of the at least one first air passage is from about 0.1 square millimeters to 0.2 square millimeters.

[0007] In one exemplary embodiment, the ratio of the total flow area of at least one first channel to the total flow area of at least one first air passage is from about 9:1 to 5:1.

[0008] In one exemplary embodiment, the flow area of each of the at least one first air passage is about 0.12 square millimeters or less.

[0009] In one exemplary embodiment, the wick does not extend into the reservoir, and the wick does not extend into at least one first channel.

[0010] In one exemplary embodiment, the at least one first channel includes two or more channels.

[0011] In one exemplary embodiment, at least one first vent hole is defined within the nicotine e-vaping section, and the at least one first vent hole is configured to allow airflow to enter the chamber.

[0012] In one exemplary embodiment, the discharge end of the at least one first vent hole is positioned to face directly the heater.

[0013] In one exemplary embodiment, the at least one first vent hole is configured to allow airflow to enter the chamber in a first direction, and the chamber is configured to flow the airflow away from the heater in a second direction across at least a portion of the heater, and the first direction and the second direction are substantially perpendicular to each other.

[0014] In one exemplary embodiment, the heater includes at least one first flat heating surface, and the first direction is substantially perpendicular to the at least one first flat heating surface.

[0015] In one exemplary embodiment, at least one first air inlet is defined by a housing, and the at least one first air inlet forms a nicotine e-vaping device in fluid communication with at least one vent when the nicotine e-vaping section is connected to the power section.

[0016] In one exemplary embodiment, a first wall of the reservoir at least partially defines at least one first channel and at least one first air passage, the wick is connected to an outer surface of the first wall, the wick covers a discharge end of the at least one first channel, and the at least one first air passage includes an inlet end positioned adjacent to the wick.

[0017] In one exemplary embodiment, the wick is connected to a wall of the chamber, the heater overlaps and directly contacts the wick, the heater includes at least one first flat heating surface facing the interior of the chamber, and the at least one first flat heating surface includes an opening exposing a surface area of the wick to the interior of the chamber.

[0018] In one exemplary embodiment, the wick is a thin pad.

[0019] In one exemplary embodiment, the nicotine e-vaping section further includes a nicotine pre-vapor formulation within the reservoir, and the nicotine pre-vapor formulation further includes a nicotine vapor former and at least one flavorant.

[0020] At least another exemplary embodiment includes a nicotine e-vaping device.

[0021] In one exemplary embodiment, a nicotine e-vaping device includes a nicotine e-vaping section having a housing, a wick within a chamber defined within the housing, a heater in proximity to heat the wick, and a reservoir configured to contain a nicotine pre-vapor formulation, the nicotine pre-vapor formulation including nicotine, the nicotine e-vaping section defining at least one first channel configured to communicate the nicotine pre-vapor formulation from the reservoir to the wick. The nicotine e-vaping section further defines at least one first air passage configured to allow air to enter the reservoir. A power section configured to connect to the nicotine e-vaping section, the power section including a power source and a control circuit configured to selectively send current from the power source to the heater.

[0022] In one exemplary embodiment, the total flow area of at least one first channel is greater than the total flow area of at least one first air passage.

[0023] In one exemplary embodiment, the total flow area of at least one first channel is from about 0.75 square millimeters to 1.25 square millimeters, and the total flow area of at least one first air passage is from about 0.1 square millimeters to 0.2 square millimeters.

[0024] In one exemplary embodiment, the ratio of the total flow area of at least one first channel to the total flow area of at least one first air passage is from about 9:1 to 5:1.

[0025] In one exemplary embodiment, the respective flow area of at least one first air passage is about 0.12 square millimeters or less.

[0026] In one exemplary embodiment, the wick does not extend into the reservoir, and the wick does not extend into at least one first channel.

[0027] In one exemplary embodiment, at least one first channel includes two or more channels.

[0028] In one exemplary embodiment, at least one first vent hole is defined within the nicotine e-vaping section, at least one first vent hole is configured to allow airflow to enter the chamber, and the discharge end of at least one first vent hole is positioned to directly face the heater.

[0029] In one exemplary embodiment, at least one first vent hole is configured to allow airflow to enter the chamber in a first direction, and the chamber is configured to flow the airflow away from the heater in a second direction, at least partially across the heater, and the first direction and the second direction are substantially perpendicular to each other.

[0030] In one exemplary embodiment, at least one first air inlet is defined by the housing, and at least one first air inlet forms a nicotine e-vaping device in fluid communication with at least one vent hole when the nicotine e-vaping section is connected to the power section.

[0031] In one exemplary embodiment, the first wall of the reservoir at least partially defines at least one first channel and at least one first air passage, the wick is connected to the outer surface of the first wall, the wick covers the discharge end of at least one first channel, and at least one first air passage includes an inlet end positioned adjacent to the wick.

[0032] In one exemplary embodiment, the core is connected to the wall of the chamber, the heater overlaps and directly contacts the core, the heater includes at least one first flat heating surface facing the interior of the chamber, and the at least one first flat heating surface includes an opening exposing the surface area of the core to the interior of the chamber.

[0033] In one exemplary embodiment, the core is a thin pad.

[0034] In one exemplary embodiment, the nicotine e-vaping device further includes a first pair of electrical connections at a first end of the nicotine e-vaping section and a second pair of electrical connections at a second end of the power section, the first pair of electrical connections being mating with the second pair of electrical connections to electrically connect a power source to the heater.

[0035] In one exemplary embodiment, the nicotine e-vaping device further includes at least one first sensor in the power section, the power section being in fluid communication with the chamber, the at least one first sensor being configured to measure at least one of a pressure drop, an air flow direction, or both a pressure drop and an air flow direction, and the circuit being operably connected to the at least one first sensor and the power source, the circuit being configured to cause the power source to send a current to the heater when the at least one first sensor senses a vaping state.

[0036] In one exemplary embodiment, the nicotine e-vaping device further includes a nicotine pre-vapor formulation in a reservoir, the nicotine pre-vapor formulation including a nicotine vapor former and at least one flavorant.

[0037] The various features and advantages of the non-limiting embodiments of this specification should become clearer when considered in conjunction with the detailed description and the accompanying drawings. The accompanying drawings are provided for illustrative purposes only and should not be construed as limiting the claims. The accompanying drawings are not considered to be drawn to scale unless otherwise specified. For clarity purposes, the various dimensions in the drawings may be exaggerated.

Brief Description of the Drawings

[0038]

Figure 1

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Modes for Carrying Out the Invention

[0039] Several detailed exemplary embodiments are disclosed herein. However, the details of the specific structural and functional aspects disclosed herein are merely exemplary for the purpose of describing the exemplary embodiments. However, the exemplary embodiments can be embodied in numerous alternative forms and should not be construed as limited to the exemplary embodiments described herein only.

[0040] Accordingly, while the exemplary embodiments are capable of various modifications and alternative forms, the exemplary embodiments are shown by way of example in the drawings and are described in detail herein. However, it is understood that there is no intention to limit the exemplary embodiments to the specific forms disclosed, and on the contrary, the exemplary embodiments are intended to cover all modifications, equivalents, and alternatives. Like numerals refer to like elements throughout the description of the figures.

[0041] It is understood that when an element or layer is referred to as being "on," "connected to," "coupled to," or "covering" another element or layer, this can mean directly on, directly connected to, directly coupled to, or directly covering the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, no intervening elements or layers are present. Like numerals refer to like elements throughout this specification.

[0042] Of course, terms such as first, second, third, etc. may be used herein to describe various elements, regions, layers, or sections, and these elements, regions, layers, or sections should not be limited by these terms. These terms are only used to distinguish one element, region, layer, or section from another. Thus, the first element, region, layer, or section discussed below could also be termed a second element, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0043] Spatial relationship terms (e.g., "below", "beneath", "lower", "above", "upper", and the like) may be used herein to facilitate description of the relationship between one element or feature and another as illustrated in the figures. Of course, the spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature will then be oriented "above" the other element or feature. Thus, the term "below" may encompass both upward and downward orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relationship descriptors used herein are to be interpreted accordingly.

[0044] The terms used in this specification are for the purpose of describing various exemplary embodiments only and are not intended to limit the exemplary embodiments. As used in this specification, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When used in this specification, the terms "includes", "including", "comprises", and "comprising" identify the presence of the stated features, integers, steps, operations, or elements, but it will be further understood that they do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.

[0045] When the terms "about" or "substantially" are used in combination with a numerical value in this specification, unless otherwise clearly defined, it is intended that the accompanying numerical value include a tolerance of plus or minus 10 percent of the stated numerical value.

[0046] Unless otherwise defined, all terms (including technical and scientific terms) used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments belong. Terms (including those defined in commonly used dictionaries) should be interpreted as having a meaning that conforms to their meaning in the context of the relevant technical field and should not be interpreted in an idealized or overly formal sense, unless explicitly defined as such in this specification.

[0047] The hardware may be implemented using a processing or control circuit including, but not limited to, one or more processors, one or more central processing units (CPUs), one or more microcontrollers, one or more arithmetic logic units (ALUs), one or more digital signal processors (DSPs), one or more microcomputers, one or more field programmable gate arrays (FPGAs), one or more system on chips (SoCs), one or more programmable logic units (PLUs), one or more microprocessors, one or more application specific integrated circuits (ASICs), or any other device having the ability to respond to and execute instructions in a defined manner.

[0048] FIG. 1 is a perspective view of a nicotine electronic vaping (e-vaping) device 10 according to an exemplary embodiment. The nicotine e-vaping device 10 may be considered an e-vaping nicotine delivery system (ENDS) device. In an exemplary embodiment, the nicotine e-vaping device 10 includes two sections, a cartridge or pod 12, which is a first nicotine e-vaping section, and a power section 14. In an exemplary embodiment, the first nicotine e-vaping section 12 is connectable to the power section 14. In another exemplary embodiment, the nicotine e-vaping device 10 is a single unit that does not include separately connectable sections. In another exemplary embodiment, the nicotine e-vaping device 10 includes three or more sections.

[0049] In an exemplary embodiment, the first nicotine e - vaping section 12 defines one or more outlets 16 at an end of the first nicotine e - vaping section 12. In an exemplary embodiment, the power section 14 includes at least one air intake 18 for the nicotine e - vaping device 10. In an exemplary embodiment, the power section 14 includes one or more indicator lights 20 indicating at least one of the capacities of the nicotine e - vaping device 10, the power section 14, and the first nicotine e - vaping section 12, and the capacity may include, as described in more detail herein, power level, nicotine pre - vapor formulation level, etc. In an exemplary embodiment, the one or more indicator lights 20 are light - emitting diodes (LEDs). In an exemplary embodiment, the one or more indicator lights 20 are filament lights, incandescent lights, or other suitable types of lights.

[0050] Figure 2 is another perspective view of the nicotine e - vaping device 10 according to an exemplary embodiment. In an exemplary embodiment, the nicotine e - vaping device 10 includes a power connector 22. In an exemplary embodiment, the power connector 22 may be, for example, a USB connector, a micro - USB connector, or another connector for connecting the nicotine e - vaping device 10 to a power source.

[0051] FIG. 3 is a view of an end of a first nicotine e - vaping section (pod) 12 of the nicotine e - vaping device 10 according to an exemplary embodiment. In the exemplary embodiment, the first nicotine e - vaping section 12 includes a first housing 13. In the exemplary embodiment, the first nicotine e - vaping section includes a connector 24 configured to connect the first nicotine e - vaping section 12 to the power section 14. In the exemplary embodiment, the connector 24 includes a connection structure 26 that includes one or more ribs 26a1 (shown in FIG. 3). The one or more ribs 26a1 create a friction fit with the power section 14. In the exemplary embodiment, the connection structure 26 may include tabs, magnets, detents, latches, snap fits, or other suitable structures by which the connector 24 connects the first nicotine e - vaping section 12 to the power section 14. In the exemplary embodiment, the connector 24 connects the first nicotine e - vaping section 12 to the power section 14 via a friction fit.

[0052] In an exemplary embodiment, the first housing 13 defines at least one air intake port 36. In an exemplary embodiment, the first housing 13 of the connector 24 defines at least one air intake port 36 that is aligned with at least one air intake port 18 (see at least FIG. 4) defined by the power section 14. In an exemplary embodiment, the first nicotine e-vaping section 12 includes a first end face 32, and the distal end 34 of the first housing 13 extends beyond the first end face 32. In an exemplary embodiment, the distal end 34 of the first housing 13 that extends beyond the first end face 32 defines at least one air intake port 36. In an exemplary embodiment, the at least one air intake port 36 includes one air intake port, two air intake ports, or three or more air intake ports. In an exemplary embodiment, the size of the at least one air intake port 36 is adjusted to control the desired draw resistance (RTD) for the first nicotine e-vaping section 12. In an exemplary embodiment, the first end face 32 at least partially defines at least one vent hole 30. In an exemplary embodiment, the first nicotine e-vaping section 12 includes an electrical contact (electrical connection) 28. In an exemplary embodiment, the electrical contact 28 is on the first end face 32.

[0053] FIG. 4 is a perspective view of the power section 14 of the nicotine e-vaping device 10 according to an exemplary embodiment. In an exemplary embodiment, the power section includes a housing 15. In an exemplary embodiment, the distal end 40 of the housing 15 extends beyond the third end face 42 of the power section 14. In an exemplary embodiment, the distal end 40 of the housing 15 that extends beyond the third end face 42 of the power section 14 defines at least one air intake port 18. In an exemplary embodiment, the at least one air intake port 18 includes a pair of air intake ports.

[0054] In an exemplary embodiment, the power section 14 includes an electrical contact (electrical connection) 44 that can mate with the electrical contact 28 of the first second section 12 when the first nicotine e-vaping section 12 is connected to the power section 14. In an exemplary embodiment, the power section 14 includes at least one hole 46 defined by a third end face 42.

[0055] FIG. 5 is a cutaway view of a nicotine e-vaping device 10 according to an exemplary embodiment. In an exemplary embodiment, the first nicotine e-vaping section 12 includes a reservoir 62 configured to contain a nicotine pre-vapor formulation 21 (see FIG. 6). In an exemplary embodiment, and as described in more detail herein, the wick 64 is configured to absorb the nicotine pre-vapor formulation 21 and transport the nicotine pre-vapor formulation 21 from the reservoir 62 to the heater 60. The heater 60 at least partially vaporizes the nicotine pre-vapor formulation 21 to form a nicotine vapor within the chamber 72. Nicotine vapor, nicotine aerosol, and nicotine dispersion are used interchangeably and refer to a substance produced or output by the disclosed device or device element, the claimed device or device element, or an equivalent thereof that contains nicotine. In one embodiment, as described in more detail herein, the nicotine vapor within the chamber 72 is drawn out of the chamber 72 through at least one vent hole 30 and through the chamber 72 via an air flow exiting from one or more outlets 16 (see the fluid flow described in FIG. 6).

[0056] In an exemplary embodiment, when the first nicotine e-vaping section 12 is connected to the power section 14, an internal space 29 is defined between the first nicotine e-vaping section 12 and the power section 14. Specifically, the internal space 29 is at least partially defined by a first end face 32 of the first nicotine e-vaping section 12 (see FIG. 3), a third end face 42 of the power section 14 (see FIG. 4), and the distal ends 34 / 40 of the respective first nicotine e-vaping section 12 and power section 14. In an exemplary embodiment, ambient air from outside the nicotine e-vaping device 10 enters the internal space 29 through at least one air inlet 18 of the power section 14 and at least one air inlet 36 of the first nicotine e-vaping section 12. In an exemplary embodiment, the at least one air inlet 18 and the at least one air inlet 36 are at least partially aligned when the first nicotine e-vaping section 12 is connected to the power section 14. In an exemplary embodiment, the internal space 29 is in fluid communication with at least one vent hole 30 and a chamber 72, and is in fluid communication with the interior 53 of the power section 14 through at least one vent hole 46.

[0057] In an exemplary embodiment, the power section 14 includes a power source 50. The power source 50 may include a battery. In an exemplary embodiment, the battery is one of a lithium-ion battery or a variant thereof (e.g., a lithium-ion polymer battery). In an exemplary embodiment, the battery is a nickel-metal hydride battery, a nickel-cadmium battery, a lithium-manganese battery, a lithium-cobalt battery, a fuel cell, or a solar cell. Other power sources or battery technologies may be used.

[0058] In an exemplary embodiment, the power section 14 includes a control system 58. In an exemplary embodiment, the control system 58 includes a controller 54 operably connected to a power source 50 and at least one sensor 52. In an exemplary embodiment, the controller 54 of the control system 58 calculates and controls the operation of the elements of the nicotine e-vaping device 10 as described herein. In an exemplary embodiment, the control system 58 includes a control circuit 55 that enables recharging of the power source 50. In an exemplary embodiment, the at least one sensor 52 includes at least one of a pressure sensor and a temperature sensor. The at least one sensor 52 may be located within at least one of the power section 14 and the first nicotine e-vaping section 12. In an exemplary embodiment, the at least one sensor 52 is located inside 53 the power section 14. In an exemplary embodiment, at least one hole 46 (FIG. 4) places the internal space 29 in fluid communication with the inside 53 of the power section 14. In an exemplary embodiment, the at least one sensor 52 is operably configured to measure one or more of the following: the resistance of the heater 60, the temperature of the heater 60, and the draw of air flow through the nicotine e-vaping device 10. In an exemplary embodiment, the control system 58 receives input signal(s) from the at least one sensor 52, and the control system 58 controls the operation of the nicotine e-vaping device 10, including supplying current from the power source 50 to the heater 60 to vaporize the nicotine pre-vapor formulation 21, based at least in part on the signal(s) from the at least one sensor 52. In an exemplary embodiment, the control system 58 causes the power source 50 to selectively send current to one or more indicator lights 20. In an exemplary embodiment, the control system 58 is operably and electrically connected to the heater 60 via electrical contacts 28 / 44 that enable the control system 58 to selectively send current to the heater 60. In an exemplary embodiment, the control system 58 is operably and electrically connected to the power connector 22 to control the charging regimen of the power source 50.

[0059] In an exemplary embodiment, an airflow through the nicotine e-vaping device 10 activates the nicotine e-vaping device 10. At least one sensor 52 may be configured to generate an output indicative of at least one of an airflow, a magnitude of the airflow, and a direction of the airflow, and a control system 58 receives the output output from at least one sensor 52 and determines whether one or both of the following internal conditions exist: (1) the direction of the airflow indicates an extraction of the airflow through the nicotine e-vaping device 10 (relative to the blowing out of air through the nicotine e-vaping device 10), and (2) the magnitude of the airflow exceeds a threshold. In some exemplary embodiments, only one condition may be sufficient to activate the heater 60, and in other embodiments, two or all conditions may need to be met before activating the heater 60. When these internal conditions of the nicotine e-vaping device 10 are satisfied, the control system 58 electrically connects the power supply 50 to the heater 60, thereby activating the heater 60. In an exemplary embodiment, at least one sensor 52 generates a variable output signal that is at least partially correlated with the magnitude of the pressure drop sensed by at least one sensor 52. In an exemplary embodiment, the control system 58 sends a variable current to the heater 60 based on the variable output signal from at least one sensor 52.

[0060] In an exemplary embodiment, the control system 58 calculates the capacity of the nicotine e-caping device 10. In an exemplary embodiment, the control system 58 performs this calculation through at least some inputs from at least one sensor 52. In an exemplary embodiment, the control system 58 receives a signal from at least one sensor 52 indicating an airflow moving through the nicotine e-caping device 10. In an exemplary embodiment, the control system 58 includes one or more look-up tables containing aggregated data or values. Based on the signal(s) received from at least one sensor 52 and based on one or more look-up tables, the control system 58 can calculate one or more of the number of draws through the nicotine e-caping device 10 or through the first nicotine e-caping section 12, the temperature of the heater 60, the resistance of the heater 60, the total or cumulative volume of airflow through at least one of the nicotine e-caping device 10 and the first nicotine e-caping section 12, the usage period of the first nicotine e-caping 12, the depletion of the nicotine pre-vaporized formulation 21 in the storage unit 62, the remaining capacity of the nicotine pre-vaporized formulation 21 in the storage unit 62, the dryness of the wick 64. In an exemplary embodiment, the control system 58 calculates the capacity of the power supply 50. In an exemplary embodiment, the control system 58 performs this calculation through at least some inputs from at least one sensor 52 in combination with data or values from one or more look-up tables. In an exemplary embodiment, the control system 58 receives a signal indicating the current level output discharged from the power supply 50 from at least one sensor 52, the control circuit 55, or both at least one sensor 52 and the control circuit 55. In an exemplary embodiment, the control system 58 selectively sends current from the power supply 50 to one or more indicator lights 20 to visually reflect the result of one or more capacity determinations made by the control system 58.

[0061] In an exemplary embodiment, the power section 14 is used until the energy of the power source 50 is depleted or drops below a specific threshold. In an exemplary embodiment, the power source 50 is rechargeable and reusable, and the control circuit 55 in the control system 58 enables the power source 50 to be charged by an external power source connected to the power connector 22. In an exemplary embodiment, the power section 14 is rechargeable via solar power or via an inductive charging station. In some exemplary embodiments, the control circuit 55 of the control system 58 supplies power for a desired (or alternatively, determined) number of withdrawals until the energy of the power source 50 is depleted or the energy of the power source 50 drops below a specific threshold after being charged, and then the control circuit 55 needs to reconnect to an external charging device.

[0062] In an exemplary embodiment, the first nicotine e-vaping section 12 is disposable. In this embodiment, the first nicotine e-vaping section 12 may be discarded after the depletion of the nicotine pre-vapor formulation 21 in the storage unit 62. In an exemplary embodiment, the first nicotine e-vaping section 12 is not disposable. In an exemplary embodiment, the nicotine e-vaping device 10 is a single section, and the structures of the power section 14 and the first nicotine e-vaping section 12 are included within a single section. In an exemplary embodiment, the nicotine e-vaping device 10 includes three or more sections.

[0063] FIG. 6 is a cutaway view of the first nicotine e-vaping section 12 according to an exemplary embodiment example. For the sake of brevity, the above-mentioned reference numerals are generally not described here. In an exemplary embodiment, the first housing 13 and the inner housing 33 surround the internal elements of the first nicotine e-vaping section 12. In an exemplary embodiment, the inner housing 33 defines at least one vent hole 30.

[0064] In one embodiment, the storage unit 62 is defined by a first storage unit housing (wall) 37 and a second storage unit housing (wall) 39. In an exemplary embodiment, the first storage unit housing 37 includes a distal end portion 37a that slides within the inner wall 39a of the second storage unit housing 39 and joins the first storage unit housing 37 to the second storage unit housing 39 via a friction fit connection. In an exemplary embodiment, the distalmost end 45 of the second storage unit housing 39 contacts the ledge 47 of the first housing 13, and the cutout region 43 holds the gasket 41 to form a liquid-tight seal between the first storage unit housing 37 and the second storage unit housing 39. In an exemplary embodiment, the storage unit 62 is defined by one continuous wall or housing, or three or more walls or housings. In an exemplary embodiment, the capacity of the storage unit 62 provides sufficient nicotine pre-vapor formulation 21 for the first nicotine e-vaping section 12 to produce approximately 10 to 20 draws before disposal of the first nicotine e-vaping section 12. In an exemplary embodiment, the capacity of the storage unit 62 provides sufficient nicotine pre-vapor formulation 21 for the first nicotine e-vaping section 12 to produce more than 20 draws before disposal of the first nicotine e-vaping section 12.

[0065] In an exemplary embodiment, the first nicotine e-vaping section 12 includes a channel 65 between the reservoir 62 and the chamber 72. In an exemplary embodiment, the first reservoir housing 37 defines one or more of the channels 65. In an exemplary embodiment, the channel 65 includes one or more first channels (first microchannels) 66 defined to be present between the reservoir 62 and the wick 64. In an exemplary embodiment, the one or more first channels 66 include only one channel, or two channels, or three or more channels. In an exemplary embodiment, the one or more first channels 66 enable the wick 64 to transport the flow 67 of the nicotine pre-vapor formulation 21 from the reservoir 62 to the wick 64 at least partially by the capillary force provided by the wick 64. In an exemplary embodiment, the one or more first channels 66 enable the wick 64 to transport the flow 67 of the nicotine pre-vapor formulation 21 from the reservoir 62 to the wick 64 at least partially by the capillary force provided by the small diameter of the one or more first channels 66. In an exemplary embodiment, as described below, the flow 67 of the nicotine pre-vapor formulation 21 is at least partially assisted by an air flow 69 entering the reservoir 62.

[0066] In an exemplary embodiment, the one or more first channels 66 include at least two channels to reduce the possibility that the one or more first channels 66 may be partially or completely blocked by bubbles that may prevent or block the flow 67 of the nicotine pre-vapor formulation 21 from moving through the one or more first channels 66. In an exemplary embodiment, the wick 64 does not extend directly into the reservoir 62. In an exemplary embodiment, there is no capillary structure or wicking system between the reservoir 62 and the wick 64 or within the one or more first channels 66, and the sole mode of transport of the nicotine pre-vapor formulation 21 from the reservoir 62 to the wick 64 is through the communication of the one or more first channels 66.

[0067] In an exemplary embodiment, channel 65 includes one or more second channels (air passages) 68. In an exemplary embodiment, one or more second channels (second microchannels) 68 include only one channel, or two channels, or three or more channels. In an exemplary embodiment, one or more second channels 68 are defined between reservoir 62 and chamber 72. In an exemplary embodiment, one or more first channels 68 are positioned adjacent to core 64. In an exemplary embodiment, one or more second channels 68 avoid at least one of core 64 and heater 60. In an exemplary embodiment, one or more second channels 68 allow airflow 69 to move from chamber 72 to reservoir 62 as nicotine pre-vapor formulation 21 is displaced from reservoir 62. In an exemplary embodiment, airflow 69 is facilitated or assisted by the pressure generated in chamber 72 due to the passage of incoming airflow 31 and the flow of nicotine vapor 73 in chamber 72. In an exemplary embodiment, airflow 69 is facilitated or assisted by a displacement (vacuum) force as nicotine pre-vapor formulation 21 is displaced and depleted from reservoir 62. In an exemplary embodiment, one or more second channels 68 are defined between reservoir 62 and nicotine vapor channel 70, or another portion of the first nicotine e-vaping section 12 other than chamber 72, or ambient air.

[0068] In an exemplary embodiment, the first total flow product of one or more first channels 66 is greater than the second total flow product of one or more second channels 68. In an exemplary embodiment, the ratio of the first total cross-sectional area of one or more first channels 66 to the second total cross-sectional area of one or more second channels 68 is from about 10:1 to 4:1, or from about 9:1 to 5:1, or about 7:1. In an exemplary embodiment, the first total flow product of one or more first channels 66 is from about 0.5 square millimeters to 1.5 square millimeters, or from about 0.75 square millimeters to 1.25 square millimeters, or about 1 square millimeter. In an exemplary embodiment, the second total flow product of one or more second channels 68 is from about 0.075 square millimeters to 0.225 square millimeters, or from about 0.1 square millimeters to 0.2 square millimeters, or about 0.15 square millimeter. In an exemplary embodiment, each of the one or more second channels 68 is small enough such that the nicotine pre-vapor formulation 21 cannot move through the one or more second channels 68. The size of each of the one or more second channels 68 depends on factors including the smoothness of each of the one or more second channels 68, the material defining the one or more second channels 68 (first storage housing 37), the surface tension of the nicotine pre-vapor formulation 21, and the like. Assuming that the one or more second channels 68 include two channels in an exemplary embodiment, the flow product of each of the channels 68 is about 0.12 square millimeters or less, or about 0.1 square millimeters or less, or about 0.075 square millimeters or less. Other ranges of values are contemplated for the sizes of the one or more first channels 66 and the one or more second channels 68, and for the ratio of the total flow products of the one or more first channels 66 and the one or more second channels 68.

[0069] In an exemplary embodiment, the wick 64 is on the wall 76 of the chamber 72. In an exemplary embodiment, the wall 76 is at least partially formed by the first reservoir housing 37. In an exemplary embodiment, the wick 64 is embedded in the wall 76 by a fixed section 78 of the wall 76. In an exemplary embodiment, the heater 60 is in heating proximity to the wick 64 such that the heater 60 is close enough to the wick 64 to at least partially vaporize the nicotine pre-vapor formulation 21 absorbed by the wick 64. That is, the heater 60 is close enough to the wick 64 such that the heater 60 can at least partially vaporize the nicotine pre-vapor formulation 21 absorbed by the wick 64.

[0070] In an exemplary embodiment, the wick 64 is a thin pad. In an exemplary embodiment, the wick 64 is rectangular. In an exemplary embodiment, the wick 64 is square, circular, or another shape. In an exemplary embodiment, the wick 64 is sized to absorb enough nicotine pre-vapor formulation 21 to produce a single draw from the first nicotine e-vaping section 12. In an exemplary embodiment, the wick 64 is made of a porous material, an absorbent material, or a porous and absorbent material having the ability to absorb the nicotine pre-vapor formulation 21. In an exemplary embodiment, the wick 64 is made of a fibrous material including glass or ceramic filaments, filaments. In an exemplary embodiment, the wick 64 does not extend into the reservoir 62. In an exemplary embodiment, the wick 64 does not extend into one or more of the first channels 66. In an exemplary embodiment, the wick 64 holds from about 5 cubic millimeters to 15 cubic millimeters, or from about 7.5 cubic millimeters to 12.5 cubic millimeters, or about 10 cubic millimeters of the nicotine pre-vapor formulation 21. In an exemplary embodiment, the heater 60 and the wick 64 vaporize the nicotine pre-vapor formulation 21 in about 0.2 seconds.

[0071] In another exemplary embodiment, heater 60 is in direct contact with core 64. In an exemplary embodiment, heater 60 is on the surface of core 64. In an exemplary embodiment, heater 60 includes a flat surface 80 that extends across at least a portion of the surface of the core, as described in more detail with reference to FIG. 8. In an exemplary embodiment, the flat surface 80 of heater 60 faces the interior of chamber 72. In an exemplary embodiment, heater 60 is on the first side of core 64 that faces away from the second side of core 64, and the second side of core 64 faces one or more first channels 66.

[0072] In an exemplary embodiment, at least one vent 30 includes an outlet (discharge end) 30a that directs the incoming air stream 31 toward the heater 60. In an exemplary embodiment, the outlet 30a is in close proximity to the heater 60. In an exemplary embodiment, the outlet 30a is at a distance of about 1.0 mm to 2.0 mm from the heater 60, or about 1.2 mm to 1.5 mm from the heater 60, or about 1.3 mm from the heater 60. In an exemplary embodiment, the outlet 30a faces the heater 60. In an exemplary embodiment, the outlet 30a directs the incoming air stream 31 toward the central position 71 (see FIG. 8) of the heater 60. In an exemplary embodiment, the flow of the nicotine vapor 73 in the chamber 72 passes across at least a portion of the heater 60. In an exemplary embodiment, by facing the outlet 30a toward the heater 60, a turbulent flow state is created at the heater 60 so that intimate mixing of the incoming air stream 31 and the nicotine vapor from the heater 60 can occur. In an exemplary embodiment, the incoming air stream 31 also provides air pressure in one or more second channels 68, toward, or near thereto, to further move the air stream 69 from the chamber 72 to the reservoir 62. In an exemplary embodiment, the incoming air stream 31 enters the chamber 72 in a first direction, and the chamber 72 causes the incoming air stream 31 to flow away across the heater 60 in a second direction, and the first direction and the second direction are substantially perpendicular to each other. In an exemplary embodiment, the first direction is substantially perpendicular to the flat surface 80 (see FIG. 8) of the heater 60. In an exemplary embodiment, the second direction is substantially parallel to the flat surface 80 of the heater 60. In an exemplary embodiment, the size of the flow product of at least one vent 30 is adjusted to control the desired RTD for the first nicotine e-vaping section 12. In an exemplary embodiment, the inlet 30b of at least one vent 30 is not directly exposed to the ambient air during the operation of the nicotine e-vaping device 10 because the ambient air passes through at least one air intake 18 and at least one air intake 36 instead before reaching at least one vent 30.

[0073] In an exemplary embodiment, the nicotine vapor channel 70 is defined within the first nicotine e-vaping section 12. In an exemplary embodiment, the nicotine vapor channel 70 is at least partially defined by the first housing 13, the first storage housing 37, and the second storage housing 39. In an exemplary embodiment, the nicotine vapor channel 70 is in fluid communication with the chamber 72 and one or more outlets 16, and the nicotine vapor channel 70 directs the flow of the nicotine vapor 73 from the chamber 72 towards the one or more outlets 16.

[0074] In an exemplary embodiment, the post 74 and the electrical contact 75 electrically connect the electrical contact 28 to the heater 60.

[0075] In an exemplary embodiment, the airflow enters the nicotine e-vaping device 10 through at least one air inlet 18 (FIG. 4), passes through at least one air outlet 36, the internal space 29 (FIG. 5), and at least one vent hole 30 into the chamber 72. In the chamber 72, the airflow 31 at least partially entrains the nicotine vapor volatilized from the heater 60, and the resulting nicotine vapor 73 moves from the heater 60 through the nicotine vapor channel 70 before exiting the nicotine e-vaping device 10 through one or more outlets 16. In an exemplary embodiment, during use of the first nicotine e-vaping section 12, a flow 67 of the nicotine pre-vapor formulation moves from the reservoir 62 through one or more first channels 66 to the wick 64 and is at least partially volatilized by the heater 60, while an airflow 69 enters the reservoir 62 through one or more second channels 68. FIG. 7 is another cutaway view (perspective view A-A of FIG. 6) of the first nicotine e-vaping section 12 according to an exemplary embodiment. For the sake of brevity, the aforementioned reference numerals are generally not described here. In an exemplary embodiment, the distal end portion 33a of the internal housing 33 at least partially defines the chamber 72. In an exemplary embodiment, the internal housing 33 fits within the first housing 13, and a first contact surface 77 of the internal housing 33 contacts a second contact surface 76 to ensure that the internal housing is accurately positioned within the first housing 13. In an exemplary embodiment, the internal housing 33 is retained within the first housing 13 via a friction fit.

[0076] In an exemplary embodiment, the outlet 30a faces the heater 60 and the wick 64, and the outlet 30a is positioned substantially centered at the central position 71 of the heater 60 (shown in FIG. 8).

[0077] In an exemplary embodiment, the distal end portion 37a of the first reservoir housing 37 has an elliptical cross-section as shown in FIG. 7.

[0078] In an exemplary embodiment, the second storage housing 39 is adhesively connected inside the first housing 13 and the first storage housing 37 is adhesively connected to the second storage housing 39 via the application of an adhesive on one or more surfaces where the second storage housing 39 and the first housing 13 contact each other and on one or more surfaces where the first storage housing 37 and the second storage housing 39 contact each other. In an exemplary embodiment, the internal housing 33 is adhesively connected to at least one of the first storage housing and the first housing 13 using the application of an adhesive at the surface contact locations. In an exemplary embodiment, the adhesive (sealant) is a silicone-based adhesive that provides a liquid and airtight seal, or another suitable sealant. In an exemplary embodiment, the first storage housing 37, the second storage housing 39, the internal housing 33 and the first housing 13 are held together via friction (press) fit and no adhesive is used to assemble the first nicotine e-vaping section 12.

[0079] FIG. 8 is a cutaway view of the first nicotine e-vaping section 12 (perspective view B-B of FIG. 7) according to an exemplary embodiment. This figure shows the elements along the wall 76 of the chamber 72 in more detail. For the sake of brevity, the reference numerals mentioned above are generally not described here. In an exemplary embodiment, the heater 60 includes a heating element 61. In an exemplary embodiment, the heating element 61 is a flat metal structure. In an exemplary embodiment, the heating element 61 is a thin structure, a wire structure, or a thin wire structure. In an exemplary embodiment, the heating element 61 is in the shape of a wave (e.g., a sine wave) or an "S" shape. In an exemplary embodiment, the heating element 61 is shaped to maximize surface contact with the core 64. In an exemplary embodiment, the heating element defines an opening 82 within the heating element 61, and the opening exposes the surface area of the core 64 to the interior of the chamber 72. In an exemplary embodiment, the heater 60, or the heating element 61 of the heater 60, forms a substantially flat surface 80. In an exemplary embodiment, the heater 60 is composed of iron aluminide (e.g., FeAl or Fe3Al). In one embodiment, the heater 60 is a wire coil, a planar body, a ceramic body, a single wire, a cage of resistance wires, or any other suitable form configured to vaporize the nicotine pre-vapor formulation 21. In at least one exemplary embodiment, the heater 60 is formed of any suitable electrically resistive material(s). In another exemplary embodiment, the heater 60 is a ceramic heater having an electrically resistive layer on its outer surface.

[0080] In an exemplary embodiment, the central position 71 of the heater 60, which is a portion of the heater 60 facing the outlet 30a, includes a flat surface 80. In an exemplary embodiment, the central position 71 of the heater 60 corresponds to at least one central region of the heater 60 and the heating element 61.

[0081] In an exemplary embodiment, the heater 60 includes electrical contacts 84. In an exemplary embodiment, the electrical contacts 84 are electrically connected to the power source 50. In an exemplary embodiment, the electrical contacts 84 of the heater 60 are electrically connected to the electrical contacts 75 and the post 74 of the first nicotine e-vaping section 12, and the post 74 is then electrically connected to the electrical contacts 28 of the first nicotine e-vaping section 12 and the electrical contacts 44 of the power section 14. In an exemplary embodiment, one of the electrical contacts 44 is electrically connected to the power source 50, and the other electrical contacts 44 are connected to the control circuit 55, such that the control circuit 55 of the control system 58 can selectively send current from the power source 50 through the electrical contacts 28 of the first nicotine e-vaping section 12 and through the post 74 and the electrical contacts 75 to the electrical contacts 44 of the power section, activating the heater 60.

[0082] In an exemplary embodiment, one or more second channels 68 are on the side surface of the core 64. In an exemplary embodiment, the one or more second channels 68 are not covered by the core 64, and the one or more first channels 66 are covered by the core 64.

[0083] Some of the advantages of the exemplary embodiments include the following.

[0084] A. Gravity independence: Several factors, including the relatively small nicotine pre-vapor formulation mass, the small size of the one or more first channels 66, and the geometric shape of the elements of the first nicotine e-vaping section 12, at least partially assist in making the nicotine e-vaping device 10 operate such that it is less or not dependent on gravity to communicate the nicotine pre-vapor formulation 21 to the core 64 and the heater 60. That is, the orientation of the nicotine e-vaping device 10 does not affect or change the performance of the nicotine e-vaping device 10. These factors at least partially assist in reducing leakage and ensuring that a desired uniform amount of the nicotine pre-vapor formulation 21 is applied to the core and vaporized by the heater 60.

[0085] B. Reduced power size: Several factors, including a relatively small nicotine pre-vaporizer formulation mass and the geometric shape of the elements of the first nicotine e-vaping section 12, enable a relatively small power source 50. This may assist the charging scheme of the nicotine e-vaping device 10.

[0086] The nicotine pre-vaporizer formulation contains nicotine. In an exemplary embodiment, a flavorant (at least one flavorant) is included within the nicotine pre-vaporizer formulation 21. In an exemplary embodiment, the nicotine pre-vaporizer formulation 21 is at least one of a liquid formulation, a solid formulation, or a gel formulation, including at least one nicotine vapor former such as water, beads, a solvent, an active ingredient, ethanol, a plant extract, a natural or artificial flavor, glycerin, and propylene glycol, and combinations thereof (but not limited thereto).

[0087] In an exemplary embodiment, at least one nicotine vapor former of the nicotine pre-vaporizer formulation includes diols (such as propylene glycol and 1,3-propanediol), glycerin, and combinations, or partial combinations thereof. Various amounts of nicotine vapor formers can be used. For example, in some exemplary embodiments, at least one nicotine pre-vaporizer former is included in an amount in the range of about 20 weight percent based on the weight of the nicotine pre-vaporizer formulation 21 to about 90 weight percent based on the weight of the nicotine pre-vaporizer formulation 21 (e.g., the nicotine vapor former is about 50 percent to about 80 percent, or about 55 percent to 75 percent, or about 60 percent to 70 percent). As another example, in an exemplary embodiment, the nicotine pre-vaporizer formulation 21 includes a weight ratio of diol to glycerin in the range of about 1:4 to 4:1, and the diol is propylene glycol, or 1,3-propanediol, or a combination thereof. In an exemplary embodiment, this ratio is about 3:2. Other amounts or ranges may be used.

[0088] In an exemplary embodiment, the nicotine pre-vaporizer formulation 21 contains water. Various amounts of water can be used. For example, in some exemplary embodiments, water is present in an amount ranging from about 5 weight percent based on the weight of the nicotine pre-vaporizer formulation 21 to about 40 weight percent based on the weight of the nicotine pre-vaporizer formulation 21, or in an amount ranging from about 10 weight percent based on the weight of the nicotine pre-vaporizer formulation 21 to about 15 weight percent based on the weight of the nicotine pre-vaporizer formulation 21. Other amounts or ratios may be used. For example, in an exemplary embodiment, the remaining portion of the nicotine pre-vaporizer formulation 21 that is not water (and nicotine or flavorant) is a vapor former (described above), the nicotine vapor former is 30 weight percent to 70 weight percent propylene glycol, and the remaining portion of the nicotine vapor former is glycerin. Other amounts or ratios may be used.

[0089] In an exemplary embodiment, the nicotine pre-vaporizer formulation 21 contains at least one flavorant in an amount ranging from about 0.2 weight percent to about 15 weight percent (e.g., the flavorant can be in the range of about 1 percent to 12 percent, or about 2 percent to 10 percent, or about 5 percent to 8 percent). In an exemplary embodiment, the at least one flavorant can be at least one of a natural flavorant, an artificial flavorant, or a combination of a natural flavorant and an artificial flavorant. For example, the at least one flavorant can include menthol and the like.

[0090] In an exemplary embodiment, the nicotine pre-vapor formulation 21 contains nicotine in an amount in the range of about 1 weight percent to about 10 weight percent. For example, the nicotine is in the range of about 2 percent to 9 percent, or about 2 percent to 8 percent, or about 2 percent to 6 percent. In an exemplary embodiment, a portion of the nicotine pre-vapor formulation 21 that is not nicotine or a flavoring agent contains 10 to 15 weight percent water, and the remaining portion of the nicotine pre-vapor formulation 21 is a mixture of propylene glycol and a nicotine vapor former in a weight ratio in the range of 60:40 to 40:60. Other combinations, amounts or ranges may be used.

[0091] Although exemplary embodiments have been disclosed herein, it will be appreciated that other variations may be possible. Such variations are not to be regarded as departing from the spirit and scope of the disclosure, and all such modifications as would be obvious to one of ordinary skill in the art are intended to be included within the scope of the following claims.

Claims

1. A nicotine e-vaping section, including a housing, a core within a chamber defined within the housing, a heater in close proximity to heating the core, a storage section configured to contain a nicotine pre-vapor formulation, the nicotine pre-vapor formulation including a storage section containing nicotine, the nicotine e-vaping section defining at least one first channel configured to communicate the nicotine pre-vapor formulation from the storage section to the core, the nicotine e-vaping section further defining at least one first air passage configured to allow air to enter the storage section, the total flow area of the at least one first air passage being from 0.1 square millimeter to 0.2 square millimeter and the ratio of the total flow area of the at least one first channel to the total flow area of the at least one first air passage being from 9:1 to 5:

1. A nicotine e-vaping section.

2. The nicotine e-vaping section according to claim 1, wherein the total flow area of the at least one first channel is greater than the total flow area of the at least one first air passage.

3. The nicotine e-vaping section according to claim 1 or 2, wherein the total flow area of the at least one first channel is from 0.75 square millimeter to 1.25 square millimeter.

4. The nicotine e-vaping section according to any one of claims 1 to 3, wherein the flow area of each of the at least one first air passage is 0.12 square millimeter or less.

5. The nicotine e-vaping section according to any one of claims 1 to 4, wherein the core does not extend into the storage portion and the core does not extend into the at least one first channel. **Claim 6** The nicotine e-vaping section according to any one of claims 1 to 5, wherein the at least one first channel includes two or more channels. **Claim 7** The nicotine e-vaping section according to any one of claims 1 to 6, wherein at least one first vent hole is defined within the nicotine e-vaping section and is configured to allow an air flow to enter the chamber. **Claim 8** The nicotine e-vaping section according to claim 7, wherein an exhaust end of the at least one first vent hole is positioned to directly face the heater. **Claim 9** The nicotine e-vaping section according to claim 7 or 8, wherein the at least one first vent hole is configured to allow the air flow to enter the chamber in a first direction, and the chamber is configured to allow the air flow to flow away from the heater in a second direction that at least partially crosses the heater, and the first direction and the second direction are perpendicular to each other. **Claim 10** The nicotine e-vaping section according to claim 9, wherein the heater includes at least one first flat heating surface, and the first direction is perpendicular to the at least one first flat heating surface. **Claim 11** The nicotine e-vaping section according to any one of claims 7 to 10, wherein at least one first air inlet is defined by the housing and is in fluid communication with the at least one first vent hole to form a nicotine e-vaping device when the nicotine e-vaping section is connected to a power section.

12. The first wall of the storage part at least partially defines the at least one first channel and the at least one first air passage, the core is connected to the outer surface of the first wall, the core covers the discharge end of the at least one first channel, and the at least one first air passage includes an inlet end positioned adjacent to the core. The nicotine e-vaping section according to claims 1 to 11.

13. The core is connected to the wall of the chamber, the heater overlaps the core and directly contacts the core, the heater includes at least one first flat heating surface facing the interior of the chamber, and the at least one first flat heating surface includes an opening exposing the surface area of the core to the interior of the chamber. The nicotine e-vaping section according to any one of claims 1 to 12.

14. Further comprising the nicotine pre-vapor formulation in the storage part, The nicotine pre-vapor formulation further includes a nicotine vapor forming body and at least one flavoring agent. The nicotine e-vaping section according to any one of claims 1 to 13.

15. A nicotine e-vaping section, A housing, A core in a chamber defined within the housing, A heater in heating proximity to the core, and, A storage part configured to contain a nicotine pre-vapor formulation, the nicotine pre-vapor formulation including a storage part containing nicotine. The nicotine e-vaping section defines at least one first channel, and the at least one first channel is configured to communicate the nicotine pre-vapor formulation from the storage part to the core. The nicotine e-vaping section further defines at least one first air passage, and the at least one first air passage is configured to allow air to enter the storage part. The total flow area of the at least one air passage is 0.1 square millimeter to 0.2 square millimeter. The ratio of the total flow area of the at least one first channel to the total flow area of the at least one first air passage is 9:1 to 5:

1. A nicotine e-vaping section, A power section configured to be connected to the nicotine e-vaping section, A power source, and A control circuit configured to selectively send current from the power source to the heater. The power section includes the control circuit. A nicotine e-vaping device comprising the above.

16. The nicotine e-vaping device according to claim 15, wherein the total flow area of the at least one first channel is larger than the total flow area of the at least one first air passage.

17. The nicotine e-vaping device according to claim 15 or 16, wherein the total flow area of the at least one first channel is 0.75 square millimeter to 1.25 square millimeter.

18. The nicotine e-vaping device according to any one of claims 15 to 17, wherein the flow area of each of the at least one first air passage is 0.12 square millimeter or less.

19. The nicotine e-vaping device according to any one of claims 15 to 18, wherein the core does not extend into the storage part and the core does not extend into the at least one first channel.

20. The nicotine e-vaping device according to any one of claims 15 to 19, wherein the at least one first channel includes two or more channels.

21. At least one first vent hole is defined within the nicotine e-vaping section, the at least one first vent hole being configured to allow an airflow to enter the chamber, and a discharge end of the at least one first vent hole being positioned to directly face the heater, the nicotine e-vaping device according to any one of claims 15 to 20. Claim 22 The at least one first vent hole is configured to allow the airflow to enter the chamber in a first direction, and the chamber is configured to allow the airflow to flow away from the heater in a second direction across at least a portion of the heater, the first direction and the second direction being substantially perpendicular to each other, the nicotine e-vaping device according to claim 21. Claim 23 At least one first air inlet is defined by the housing, the at least one first air inlet being in fluid communication with the at least one first vent hole to form a nicotine e-vaping device when the nicotine e-vaping section is connected to a power section, the nicotine e-vaping device according to claim 21 or 22. Claim 24 A first wall of the storage portion at least partially defines the at least one first channel and the at least one first air passage, the core being connected to an outer surface of the first wall, the core covering a discharge end of the at least one first channel, the at least one first air passage including an inlet end positioned adjacent to the core, the nicotine e-vaping device according to any one of claims 15 to 23. Claim 25 The core is connected to the wall of the chamber, the heater overlaps the core and is in direct contact with the core, the heater includes at least one first flat heating surface facing the interior of the chamber, and the at least one first flat heating surface includes an opening exposing a surface area of the core to the interior of the chamber. The nicotine e-vaping device according to any one of claims 15 to 24.

26. A first pair of electrical connections at a first end of the nicotine e-vaping section, And a second pair of electrical connections at a second end of the power section, wherein the first pair of electrical connections is mating with the second pair of electrical connections, and electrically connecting the power source to the heater. The nicotine e-vaping device according to any one of claims 15 to 25.

27. At least one first sensor in the power section, wherein the power section is in fluid communication with the chamber, and the at least one first sensor is configured to measure at least one of a pressure drop, an air flow direction, or both the pressure drop and the air flow direction. At least one first sensor, A circuit operably connected to the at least one first sensor and the power source, and configured to cause the power source to send current to the heater when the at least one first sensor senses a vaping state. The nicotine e-vaping device according to any one of claims 15 to 26, further comprising a circuit.

28. Further comprising the nicotine pre-vapor formulation in the storage portion, The nicotine pre-vapor formulation includes a nicotine vapor former and at least one flavoring agent. The nicotine e-vaping device according to any one of claims 15 to 26.

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