e-cigarettes

Abstract

An electronic cigarette is described, comprising a housing sleeve having an open end and a closed end; and a functional insert including electrical components, wherein the functional insert is arranged to be introduced through the open end of the housing sleeve and held within the housing sleeve. By assembling the functional electronic components together onto the functional insert, and by providing a device housing in the form of a sleeve, the assembly process is simplified, thereby reducing the complexity of the assembly procedure, since the functional components can be assembled in a first assembly step and then subsequently fitted into the housing in a single step.

Description

Technical Field

[0001] This invention relates to personal vaporization devices, such as electronic cigarettes. In particular, this invention relates to an electronic cigarette configured to receive a disposable cartridge containing vaporizable material. Background Technology

[0002] Electronic cigarettes are an alternative to regular cigarettes. Instead of producing burning smoke, electronic cigarettes vaporize a liquid that can be inhaled by the user. The liquid typically includes aerosol-forming substances such as glycerin or propylene glycol, which produce vapor. Other common substances in the liquid are nicotine and a variety of different flavorings. Several different types of electronic cigarettes exist, and they can generally be categorized as liquid vaporizers, heated tobacco vaporizers, or combinations thereof (i.e., hybrid devices).

[0003] Electronic cigarettes are typically handheld inhaler systems, comprising a mouthpiece and a power supply. They are generally configured to accept disposable cartridges containing vaporizable material. These electronic cigarettes further include a power supply and a cartridge holder that holds the cartridge and heats the substrate to produce inhalable vapor to be inhaled through the mouthpiece.

[0004] This known device presents several problems. One issue is that the manufacture and assembly of the device is not straightforward, as multiple functional components must be assembled together within a housing; it can be a time-consuming process requiring considerable skill. Even slight variations in the positioning of the functional components during assembly can lead to performance variations between devices.

[0005] The purpose of this invention is to provide an electronic cigarette that solves some of the problems mentioned above. Summary of the Invention

[0006] According to a first aspect of the invention, an electronic cigarette is provided, comprising: a housing sleeve having an open end and a closed end; a functional insert including a battery and an electronic circuit system for supplying power from the battery to a cartridge received in the cartridge housing during use; wherein the functional insert is arranged to be introduced through the open end of the housing sleeve and held within the housing sleeve. By incorporating the functional electronic components together onto the functional insert, and by providing a housing in the form of a sleeve, the assembly process is simplified, thereby reducing the complexity of the assembly procedure, since the functional components can be assembled in a first assembly step and then subsequently fitted into the housing in a single step. Repeatable assembly of the functional components in proper arrangement before fitting individual integral structures into the housing is also simpler when performing this process on individual integral structures, thereby reducing variations in the performance of the electronic cigarette. By providing a housing in the form of a separate integral sleeve, the housing can also be made in a robust shape to withstand impacts and better protect the functional components. In some examples, functional inserts may include alternative batteries and electrical circuit systems or other electrical components besides them.

[0007] The term "functional insert" refers to a component that includes the functional parts of the device, that is, the parts associated with the function of generating an aerosol for inhalation, particularly electrical parts. The functional insert is preferably an integral component to which the functional element of the electronic cigarette is attached or housed. In this way, the functional insert can be assembled in a first step, and then in a subsequent second step, the function can be moved as an integral component and positioned within the housing, preferably secured in place with one or more fasteners.

[0008] Specifically, the functional insert is arranged during the initial assembly of the device to be introduced through the open end of the housing sleeve and then secured in place.

[0009] The outer casing sleeve preferably comprises a hollow tubular housing with an open end and a closed end, through which a functional insert can be inserted into the device during assembly. The closed end is "closed" because the insert can only be introduced through the open end, but the closed end may include one or more openings, for example, for accommodating an air inlet and / or a charging port.

[0010] As used herein, the terms "inhaler" or "electronic cigarette" can include electronic cigarettes configured to deliver an aerosol to a user, the aerosol including an aerosol for smoking. An aerosol for smoking can refer to an aerosol with a particle size of 0.5-7 micrometers. The particle size can be less than 10 or 7 micrometers. Electronic cigarettes can be portable. The terms "inhaler" or "electronic cigarette" are also intended to cover "heat-not-burn" devices that produce an aerosol by heating a material (e.g., tobacco) in a manner sufficient to release vapor without burning the material.

[0011] The functional insert preferably includes, in addition to the battery, a cartridge holder for receiving a removable cartridge containing a liquid to be vaporized; and an electronic circuitry system for supplying power from the battery to the cartridge housed in the cartridge holder during use. These components require careful assembly and relative positioning; therefore, providing them as an integral functional insert significantly reduces manufacturing complexity. The functional insert preferably includes one or more of the following: a PCB; an airflow sensor for sensing inhalation at the mouthpiece to activate power supply to the cartridge in the cartridge holder; a charging port for connecting the battery to a mains power supply; and a connection mechanism for connecting to the mouthpiece.

[0012] The cartridge holder is preferably a first cartridge holder configured to receive a first cartridge for connecting the first cartridge to a battery and providing a vapor flow path through the cartridge to the mouthpiece. The first cartridge is preferably an atomizing cartridge, i.e., a cartridge comprising: a liquid reservoir; a heating element arranged to heat the liquid to generate an aerosol; a vapor flow path that delivers the generated aerosol through the cartridge to an outlet near the mouthpiece; and electrical contacts for connection to corresponding contacts in the cartridge holder, enabling the supply of power to the heating element. The first cartridge may include an aerosol-forming substance, such as propylene glycol and / or glycerol, and may contain other substances, such as nicotine and acids. The liquid L may also contain flavorings, such as tobacco, menthol, or fruit flavors. The mouthpiece may include a vapor outlet through which the user inhales the vapor generated in the first cartridge when the mouthpiece is in a closed position.

[0013] Preferably, the cartridge holder is arranged such that during use, when the cartridge is received in the cartridge holder, the cartridge is at least partially, preferably substantially, located within the outer casing of the electronic cigarette. Preferably, the cartridge holder is arranged such that during use, when the cartridge is received in the cartridge holder, the cartridge is completely located within the outer casing of the electronic cigarette. Particularly preferably, the functional insert is arranged such that the functional insert is completely located within the outer casing, and the cartridge holder is completely positioned within the functional insert. Preferably, the first end of the functional insert is flush with the open end of the outer casing, and the opening to the cartridge holder is positioned on the first end of the functional insert. In this way, the cartridge is received within the outer casing, providing a more compact device and making the cartridge holder easily accessible. Furthermore, the opening to the cartridge holder can be sealed by the mouthpiece portion that contacts the first end of the functional insert.

[0014] Preferably, the electronic cigarette further includes: a mouthpiece portion (also referred to as a mouthpiece), which is preferably movably connected to the outer casing sleeve or the functional insert via a connecting mechanism; wherein the connecting mechanism is configured to allow the mouthpiece portion to move relative to the functional insert between a closed position and an open position, in which the first cartridge housing is enclosed in the electronic cigarette; and in the open position, the first cartridge housing is exposed to receive the first cartridge, while the mouthpiece portion remains connected to the functional insert or the outer casing sleeve via the connecting mechanism.

[0015] Preferably, the functional insert includes a first end positioned at the open end of the housing sleeve and a second end positioned toward the closed end of the housing sleeve. The electronic cigarette further includes a mouthpiece movable between an open position and a closed position via a moving mechanism (preferably a hinge mechanism) that connects the mouthpiece to the first end of the functional insert. In this way, the first cartridge can be inserted into and removed from the first cartridge housing in a simple and user-friendly manner without disconnecting the mouthpiece from the device, thus preventing the risk of loss or damage to the mouthpiece component. By connecting the mouthpiece to the functional insert, the moving mechanism (e.g., a hinge mechanism) can be assembled onto the functional insert rather than the housing, thereby simplifying the manufacturing process.

[0016] The functional insert may include a first contact surface at a first end of the functional insert, and the mouthpiece may include a second contact surface, wherein when the mouthpiece is brought to a closed position, the first and second contact surfaces are combined such that the first and second contact surfaces contact or are closely adjacent. The first and second contact surfaces may be aligned in the closed position so as to abut or approach each other, with a portion of one or both surfaces exposed in the open position. A first cartridge holder may be disposed in the first contact surface, wherein movement of the mouthpiece to the open position exposes at least a portion of the first cartridge holder, allowing the first cartridge to be received. One or both contact surfaces may be substantially perpendicular to the extension axis of the functional insert, or one or both contact surfaces may be at an angle to the extension axis.

[0017] Preferably, the mouthpiece portion includes a second cartridge holder configured to receive a second cartridge. Therefore, the characteristics of the generated vapor can be configured as a combination of two vapors generated from the respective cartridge, allowing for adjustment and enhancement of vapor characteristics, thereby improving the user experience. Preferably, the second cartridge is replaceable. The second cartridge can be inserted into the second cartridge holder through an opening in the second cartridge holder. The second cartridge holder can be provided via a mouthpiece channel extending from a vapor outlet through the mouthpiece to an internal opening in a second contact surface through which vapor is drawn in. When the mouthpiece is in the closed position, the second contact surface is adjacent to the first cartridge holder. The opening in the cartridge holder can be provided by a vapor outlet in the mouthpiece portion, allowing the second cartridge to be inserted when the mouthpiece is in the closed position. The second cartridge can be configured to provide a mouthpiece through which the user inhales the generated vapor. Specifically, when the second cartridge is inserted, a portion of the second cartridge can protrude from the mouthpiece portion, thereby providing a mouthpiece.

[0018] The second cartridge may also include aerosol-forming substances such as tobacco, propylene glycol, and / or glycerol, and may contain other substances such as nicotine and acids. The liquid may also contain flavorings such as tobacco, menthol, or fruit flavors. Preferably, the second cartridge comprises a tobacco matrix. In this way, the vapor generated in the first cartridge passes through the tobacco matrix, thereby absorbing compounds that give the generated vapor an improved flavor and nicotine content, thus enhancing the user experience.

[0019] Preferably, the electronic cigarette is arranged such that a vapor flow path is created between the first and second cartridges when the mouthpiece is brought to the closed position. Specifically, when the first cartridge is received in a first cartridge housing, the second cartridge is received in a second cartridge housing, and the mouthpiece is brought to the closed position, a fluid connection is formed between the first cartridge, the second cartridge, and the mouthpiece. In this way, before the user inhales vapor through the mouthpiece, the vapor generated in the first cartridge flows through the second cartridge, which imparts new properties to the generated vapor. Therefore, a wide range of vapor characteristics can be provided, thereby enhancing the user experience, and the inhaled vapor can have improved flavor or active ingredient content.

[0020] Preferably, the hinge mechanism connecting the nozzle to the first end of the functional insert includes an internal lever, one end of which is fixedly connected to the nozzle portion, and the opposite end is rotatably connected to a receiving portion located in the functional insert. By providing an internal hinge mechanism, the mechanism is protected within the functional insert, thereby increasing the lifespan of the mechanism, and the external shape of the device can be consistent, thus improving usability.

[0021] Preferably, the lever is L-shaped, and the lever connects the center point of the nozzle portion to a point near the edge of the functional insert. This allows the inner lever to provide increased displacement of the nozzle portion with only minor movement of the lever. In particular, the lever may be connected near the radial end of the first contact surface and near the center of the second contact surface.

[0022] Preferably, the receiving portion includes an elongated slot configured to retain the rotating end of the lever while allowing the lever to rotate within and move linearly along the slot. In this way, the displacement of the mouthpiece from the functional insert in the open position can be increased as the mouthpiece rotates and translates away from the functional insert. This allows the opening of the first cartridge housing to be exposed even with reduced rotation of the mouthpiece, thereby reducing the space required for the hinge mechanism.

[0023] The functional insert can be elongated, and the elongated slot can be at least approximately aligned with the extension axis of the functional insert, such that when the mouthpiece portion moves to the open position, the mouthpiece portion both rotates relative to the functional insert and moves linearly away from the functional insert. Therefore, the mouthpiece portion moves away from the functional insert in a direction aligned with the extension axis of the e-cigarette, thereby ensuring that the first contact surface is fully exposed for cartridge replacement. The linear movement of the mouthpiece portion allows the opening of the functional insert cartridge housing to be released with minimal rotation of the mouthpiece portion, thereby allowing the introduction of the first cartridge.

[0024] Preferably, the electronic cigarette further includes a first retaining element configured to releasably retain the mouthpiece portion in a closed position. In this way, the mouthpiece is fixedly held in the closed position to prevent accidental opening that could result in loss of the cartridge, while also allowing the user to easily overcome the retaining force required to open the device when needed.

[0025] Preferably, the electronic cigarette further includes a second retaining element configured to releasably retain the mouthpiece portion in the open position, such that the mouthpiece portion is bistable and in an equilibrium position in both the open and closed positions. Therefore, the mouthpiece is stably held in the open and closed positions, thereby increasing the ease of replacing one or both cartridges. Preferably, the first and / or second retaining elements include magnets. The term "magnet" can include one or more of permanent magnets, magnets of different polarities, or ferromagnetic materials. Preferably, when the mouthpiece moves between the open and closed positions, the mouthpiece is always under the action of one or both magnetic retaining elements, thereby ensuring that the mouthpiece is brought from any point within its range of movement to one of the two stable equilibrium positions. Preferably, the electronic cigarette further includes a biasing element configured to bias the mouthpiece to the closed position.

[0026] Preferably, the functional insert includes a battery and is elongated; wherein the first cartridge housing and the battery extend side-by-side in the elongation direction, and a hinge mechanism is located above the battery. This effectively utilizes the space provided by the functional insert within the housing sleeve.

[0027] Preferably, the mouthpiece portion includes a seal configured to abut against the vapor outlet of the first cartridge when the mouthpiece is in the closed position to form a fluid connection between the first cartridge and the mouthpiece. In some examples, the seal has a first side and an opposite second side, the first side configured to abut against the first cartridge and the second side configured to abut against a second cartridge when the mouthpiece is in the closed position to form a fluid connection between the first and second cartridges. Preferably, when the mouthpiece is in the open position, the seal is away from the opening leading to the first cartridge housing, and when in the closed position, the seal contacts the opening. The seal may be part of the mouthpiece. In this way, the seal does not interfere with the replacement of the first cartridge.

[0028] Preferably, the housing sleeve further includes a circumferentially extending edge around the inner surface of the sleeve at the open end; wherein the functional insert is configured to engage with the edge. In this way, the edge engages with the functional insert to secure the functional insert within the housing. In particular, the edge may be arranged to engage the functional insert to hold it in the correct position within the housing sleeve, for example, such that a first end of the functional insert is aligned with the open end of the housing sleeve.

[0029] Preferably, the functional insert includes a circumferential edge extending around its outer surface, wherein the circumferential edge is arranged to contact the edge of the housing sleeve to hold the functional insert in place within the housing sleeve. This provides a simple means of positioning the functional insert correctly within the housing.

[0030] Preferably, the housing sleeve includes a first orifice on its inner surface, and the functional insert includes a corresponding second orifice arranged to align with the first orifice when the functional insert is received in the housing sleeve, allowing the housing sleeve and the functional insert to be attached by fasteners (e.g., screws) passing through these aligned orifices. Specifically, the first orifice may be located near or at the open end of the housing sleeve to provide a channel for easy securing of the orifices together. In this way, the functional insert can be secured in place within the housing sleeve with minimal securing devices, allowing for quick and simple assembly of the electronic cigarette.

[0031] Preferably, the functional insert includes a housing for accommodating electrical components. Preferably, the functional insert includes a first housing portion and a second housing portion; wherein the first housing portion and the second housing portion are configured to connect along a longitudinal interface to enclose the electrical components within. This provides additional protection for the electronic components housed within the housing of the functional insert and the outer sleeve. This arrangement is easy to assemble, allowing the electrical components to be arranged before enclosing them from either side with these housing portions to provide an integral functional insert for insertion into the housing sleeve. Preferably, the housing, and / or the first housing portion and the second housing portion, comprises a thermoplastic material suitable for thermoplastic or ultrasonic welding.

[0032] Preferably, the first shell portion and the second shell portion are offset relative to each other, such that one shell portion extends further than the other shell portion in the direction toward the closed end of the shell sleeve. This allows certain functional components to remain exposed, allowing access while retaining these functional components within the shell, for example, allowing them to be replaced.

[0033] Preferably, the first and second shell portions include engagement structures configured to attach to each other, wherein these engagement structures provide snap-locking or friction engagement. This further improves the ease of assembling the functional insert before it is fitted into the housing.

[0034] Preferably, the housing sleeve further includes at least one guide rail arranged along its inner surface, and the functional insert includes a slot configured to engage with the guide rail. Preferably, the guide rail and slot are arranged such that the functional insert can only be inserted in a predetermined orientation. This ensures the correct orientation of the functional insert relative to the housing sleeve. Preferably, the guide rail further includes orifices for receiving fasteners to attach the insert to the housing sleeve. The functional insert may further include orifices arranged to align with orifices on the guide rail, such that the functional insert can be secured to the housing, for example, by screws passing through both orifices. This process can be performed once the functional insert is inserted, as the orifices can be easily accessed through the open end, thus improving ease of assembly.

[0035] Preferably, the functional insert includes a first end and a second end, the first end including an opening leading to the cartridge holder, and the second end located at the opposite end of the functional insert; wherein the first end of the functional insert is angled such that the functional insert has an increased length along a longitudinal line passing through the cartridge holder. In this way, more space is provided for the cartridge holder within the functional insert, thereby allowing for the reception of larger cartridges.

[0036] Preferably, the functional insert is elongated and includes a battery and a cartridge housing; wherein the battery and the cartridge are positioned side-by-side along the elongation axis of the functional insert. In this way, the volume of the functional insert is effectively utilized.

[0037] In another aspect of the invention, a kit is provided comprising: an electronic cigarette and a removable cartridge, wherein the electronic cigarette includes: a housing sleeve having an open end and a closed end; a functional insert including a cartridge holder arranged to receive the removable cartridge and electrical components, wherein the functional insert is arranged to be introduced through the open end of the housing sleeve and held within the housing sleeve. In another aspect of the invention, a first cartridge configured for use with an electronic cigarette as defined in any of the appended claims is provided.

[0038] In another aspect of the invention, a method for assembling an electronic cigarette is provided, the method comprising: providing a functional insert including electrical components and a housing sleeve having an open end and a closed end; and introducing the functional insert through the open end of the housing sleeve and fixing the functional insert such that the functional insert is held within the housing sleeve. Attached Figure Description

[0039] The invention will now be described with reference to the accompanying drawings, which illustrate embodiments of the invention by way of example, and in the drawings, similar features are indicated by the same reference numerals, and in the drawings:

[0040] Figure 1A and Figure 1B The functional insert and the outer casing sleeve according to the present invention are shown respectively;

[0041] Figure 2A and Figure 2B An electronic cigarette according to the present invention is shown;

[0042] Figure 3 The mouthpiece portion of the electronic cigarette according to the present invention is shown schematically.

[0043] Figure 4 An electronic cigarette according to the present invention is illustrated schematically;

[0044] Figure 5A and Figure 5B The functional insert for an electronic cigarette according to the present invention is illustrated schematically;

[0045] Figure 5C and Figure 5D An alternative arrangement of the functional insert for an electronic cigarette according to the present invention is illustrated schematically;

[0046] Figure 6 The outer casing sleeve of the electronic cigarette according to the present invention is shown schematically.

[0047] Figure 7A and Figure 7B The functional insert and the corresponding outer casing sleeve according to the present invention are schematically shown respectively;

[0048] Figure 8 An electronic cigarette according to the present invention is illustrated schematically;

[0049] Figure 9 A portion of an electronic cigarette according to the present invention is illustrated schematically. Detailed Implementation

[0050] Figures 1 and 2 schematically illustrate an electronic cigarette 1, which includes a housing sleeve 10 and a functional insert 20. The housing sleeve has an open end 11 and a closed end 12. The functional insert includes the electrical components of the device. The functional insert 20 is arranged to be introduced into the open end 11 of the housing sleeve 10 and held within the housing sleeve 10. These features provide numerous advantages. In particular, this structure allows for a modular assembly process, in which the functional electronic components of the device can be assembled into a single integral component, namely the functional insert 20, and this can be easily introduced into the housing sleeve 10 to form the complete device 1, such as... Figure 2A As shown. The source allows for disassembly and repair of the device by simply removing the housing sleeve when needed. Further advantages in temperature management can be achieved by suspending the functional insert within the housing sleeve 10 to minimize heat conduction from the heater components to the housing. Furthermore, the housing sleeve 10 can be formed as a single integral component, thus providing enhanced strength and fracture resistance. Numerous further technical advantages regarding specific components of the device are described below.

[0051] Figure 1A and Figure 1B Exemplary embodiments of the functional insert 20 and the outer casing sleeve 10 are shown schematically, respectively. Figure 2A and Figure 2B An electronic cigarette, formed by a functional insert 20 held within a housing sleeve 10, is schematically shown in external and cross-sectional views. Figure 2A As shown, the electronic cigarette 1 has a generally elongated body extending from the base end 2 to the mouthpiece end 3, wherein the mouthpiece portion 30 is positioned at the mouthpiece end 3. Figure 1A As shown, the functional insert 20 includes functional components of the device 1, namely, electronic components that provide the aerosol generating function of the device 1. In particular, the functional insert includes a first cartridge holder 21 for receiving a first removable cartridge 40, a power source in the form of a battery 22, and an electronic circuit system for controllably supplying power from the battery 22 to the cartridge 40 received in the cartridge holder 21 during use.

[0052] The electronic cigarette 1 includes a mouthpiece portion 30 connected to a functional insert 20. The mouthpiece portion 30 is movable relative to the functional insert 20 between an open position and a closed position via a connecting mechanism 31. In the open position, a first cartridge holder 21 is exposed to receive a first cartridge 40; in the closed position, the first cartridge holder 21 is enclosed within the electronic cigarette 1. In this manner, the mouthpiece portion 30 can be moved to the open position while remaining connected to the functional insert 20 via the connecting mechanism 31, allowing the cartridge 40 to be inserted into the first cartridge holder 21 of the functional insert 20. The mouthpiece portion 30 can then return to the closed position to enclose the received first cartridge 40 within the device 12.

[0053] The electronic cigarette 1 is assembled by placing the functional insert 20 inside the housing speed 10 to form Figure 2AThe complete electronic cigarette 1 is shown. During use, the user inhales through the mouthpiece 30, simultaneously supplying power to the cartridge received in the cartridge holder 21, causing the heating element to heat up and vaporize the aerosol contained in the cartridge 40, thereby allowing the aerosol to be inhaled by the user through the mouthpiece 30. The device shown further includes a second cartridge holder 32 disposed in the mouthpiece 30. The second cartridge holder is arranged to receive a second cartridge 41. The first cartridge holder 21, the second cartridge holder 32, and the mouthpiece are arranged such that when the mouthpiece is closed, the first cartridge 40 received in the first cartridge holder 21 forms a sealed fluid passage through the second cartridge 41 received in the second cartridge holder 32 to the mouthpiece, such that the inhaled vapor may include components from both the first cartridge 40 and the second cartridge 41. Figure 1A , Figure 2A and Figure 2B As shown, the second cartridge 41 is arranged to protrude from the mouthpiece 30 when received in the mouthpiece, such that a portion of the second cartridge 41 provides part of the mouthpiece from which the user can inhale the generated vapor.

[0054] The functional insert 20 has several different features in Figure 2B The cross-sectional view is shown. Specifically, Figure 2B A battery 22 and an electronic circuit system 23 are shown, which are arranged to supply power from the battery to a cartridge 40 received in a first (main) cartridge housing 21. Figure 2B This further illustrates how, when the mouthpiece 30 is in a closed configuration, the second cartridge 41 received in the second cartridge holder 32 within the mouthpiece 30 is sealed to the first cartridge 40 received in the first cartridge holder 21. In this manner, the aerosol generated within the first cartridge is drawn through the second cartridge 41 via an air outlet 42 located in the protruding portion of the second cartridge 41 that serves as the mouthpiece, such that the inhaled aerosol includes components from both the first cartridge 40 and the second cartridge 41.

[0055] As shown in Figures 1 and 2, both the functional insert 20 and the housing sleeve 10 include corresponding elongated shapes with substantially similar dimensions, such that when the electronic cigarette 1 is assembled, the functional insert 20 is completely located within the housing sleeve 10. Figure 2A and Figure 2B As shown. The body of the functional insert 20 extends between a first end 24 and a second base end 25, the first end including an opening leading to the first cartridge housing 21. The electronic cigarette 1 is arranged such that the first end 24 of the functional insert 20 is positioned at the open end 11 of the outer casing sleeve 10, and the second base end 25 of the functional insert 20 is positioned at the closed end 12 of the outer casing sleeve 10. The mouthpiece 30 of the electronic cigarette 1 is connected to the first end 24 of the functional insert 20 via a moving mechanism 31.

[0056] like Figure 3 As most clearly shown, the connection mechanism 31 between the nozzle portion 30 and the functional insert 20 is preferably configured as a hinge mechanism 70. For example... Figure 1A , Figure 2B and Figure 4 As seen, the hinge mechanism 70 is connected to the first end 24 of the functional insert 20 and is arranged to be completely enclosed within the electronic cigarette 1 when the mouthpiece is in the closed configuration. This is advantageous because the hinge mechanism 70 is not visible from the outside of the electronic cigarette 1, so that the user's hand will not interfere with the hinge mechanism 70 when using the device. Furthermore, when the mouthpiece 30 is in the closed position, the hinge mechanism 70 can be protected within the electronic cigarette 1.

[0057] like Figure 3 and Figure 4 As best shown, the hinge mechanism 70 includes a lever 72, which includes a first connecting end 74 fixedly connected to the nozzle portion 30 and a second connecting end 76 rotatably connected to the receiving portion 77 of the functional insert 20. The second connecting end 76 can be configured as a rotary joint 76. The rotary joint 76 can be in the form of a pin or shaft, which is fixed within the receiving portion 77 of the functional insert 20 such that the rotary joint 76 defines an axis of rotation about which the lever 72 can rotate.

[0058] The goal is to create an electronic cigarette device 1 with a compact and ergonomic shape. Therefore, it is necessary to reduce the internal space required for the hinge mechanism 70. Consequently, the movement of the lever 72 in the horizontal direction of the electronic cigarette 1 should be reduced. Therefore, the hinge mechanism 70 can be designed to provide a combination of rotational and linear movement of the mouthpiece portion when it moves to the open position.

[0059] The hinge mechanism 70 can be configured to allow the mouthpiece portion 30 to rotate and move axially away from the functional insert 20. This allows the opening 26 of the first cartridge housing 21 to be exposed with reduced rotation of the mouthpiece portion 30, thereby reducing the space required for the hinge mechanism 70. To achieve rotational and linear movement of the mouthpiece portion 30, such as... Figure 2B As shown, the receiving portion 77 is in the form of an elongated axial slot 77, and the rotary joint 76 at the rotating end 76 of the lever 72 is fixed in this receiving portion. The linear slot 77 and the lever 72 are fixed so that the rotating end of the lever 72 can rotate within the slot 77 and move linearly in a direction corresponding to the elongation axis of the slot 77. In this way, when the suction nozzle portion 30 is moved to the open position, the lever 72 can rotate and translate.

[0060] Therefore, the linear slot 77 defines end positions that include limits to linear movement, where the end positions correspond to the positions of the rotary joint 76 when the nozzle portion 30 is in the closed and open positions, respectively. Thus, as... Figure 2B As shown, when the suction nozzle is in the closed position, the connector 76 at the rotating end of the lever 72 is located at the lower end of the linear slot, and as... Figure 4 As shown, when the nozzle part 4 is in the open position, the connector 76 is located in the upper end of the linear groove 77.

[0061] like Figure 2B As shown, a limiting surface S can be provided on the axial extension connected to the functional insert 20, and when the nozzle reaches the fully open position, this limiting surface encounters a corresponding surface of the lever 72, thereby limiting further rotation of the lever 72. In other words, the functional insert 20 includes an inner surface S arranged to encounter the lever when the lever 72 rotates to prevent further rotation at a certain point. This surface S can be set as part of a first end 24 of the functional insert, which extends along the elongation axis of the functional insert 20 in a direction toward the nozzle 30.

[0062] The linear movement of the mouthpiece portion 30 allows the opening 26 of the main cartridge housing 21 to be released with minimal rotation of the mouthpiece portion 30, enabling the introduction of the first cartridge 40. This also reduces the space required for the hinge mechanism 70 in the functional insert 20.

[0063] One or more retaining elements 88, preferably in the form of magnetic elements, can be positioned to facilitate rotational and linear movement of the nozzle portion 30 provided by the hinge mechanism 70. Specifically, the magnetic element 88b (see...) Figure 2B The lever 72 can be set on the limiting surface S, and the corresponding magnetic material 88a can be set on the opposite surface of the lever 72, so that when the user initially opens the nozzle part 4, the lever 72 is rotated and linearly translated upward, so that the corresponding magnets meet, and then the nozzle part 30 is fixed in a stable open position.

[0064] The lever 72 is substantially L-shaped and includes a horizontal portion 73, a vertical portion 75, and a connector 76, as shown. Figure 3 As shown. The L-shape allows a point towards the lower center of the nozzle portion 30 to connect to a point on the radial end of the upper surface near the first end of the functional insert 20. This allows for an internal lever mechanism and increases the displacement of the nozzle portion 30 from the functional insert with a small degree of rotation.

[0065] Figure 5A and Figure 5B Further details of the functional insert 20 are shown. (See attached image.) Figure 5A and Figure 5BAs shown, the functional insert may include a housing 50 that accommodates the electronic components of the functional insert 20. Specifically, the housing 50 includes a first housing portion 51 and a second housing portion 52. The first housing portion 51 and the second housing portion 52 are arranged such that these housing portions are connected along a longitudinal interface extending along the elongation axis of the functional insert 20. The first housing portion 51 and the second housing portion 52 thereby encapsulate the functional electronic components within the housing 50. The first housing portion 51 and the second housing portion 52 may include a thermoplastic material to allow the first housing portion 51 and the second housing portion 52 to be welded along the longitudinal interface to seal the housing 50 around the internal electronic components. In other examples of the invention, the first housing portion 51 and the second housing portion 52 may include corresponding engagement structures configured to attach to each other, thereby allowing the first housing portion 51 and the second housing portion 52 to releasably engage with each other to seal the electronic components. For example, the engagement structures may allow a snap-lock or friction-fit connection between the housing portions 51, 52.

[0066] One or more portions of the housing portions 51, 52 may be removable to allow internal electronic components to be serviced, replaced, or repaired. The housing 50 of the functional insert 20 also includes a circumferential edge 53 extending around the outer surface of the housing 50 at a first end 24 of the functional insert 20. The edge 53 of the functional insert engages with a corresponding feature within the housing 10 to assist in securing the functional insert 20 in the correct position within the housing 10, as will be described. Figure 5B As shown, the functional insert 20 further includes a longitudinal slot 54 that extends along the outer surface of the housing in a direction corresponding to the elongation axis of the functional insert 20.

[0067] like Figure 5C As shown, the first shell portion 51 and the second shell portion 52 may be offset relative to each other when assembled together. In other words, at least one of the distal ends of the first shell portion 51 and the second shell portion 52 is offset relative to each other.

[0068] For example, such as Figure 5D As shown, one of the shell portions 51 and 52 can be shorter than the other. For example, the length difference can be between 50% and 75%. When the first shell portion 51 and the second shell portion are assembled to each other, this leaves some components exposed. If replacement is required, the exposed components can be removed more easily, or the exposed components can be assembled to the insert after the first shell portion 51 and the second shell portion 52 are attached to each other.

[0069] In this embodiment, only one of the shell portions 51 and 52 contacts the bottom portion of the shell sleeve. This also allows for the arrangement of separate components, such as air passage components or plugs 300, in the bottom of the shell sleeve, as shown in Figures 7 to 8. Figure 9 A more detailed description.

[0070] like Figure 6 As shown, the outer casing sleeve 10 further includes a circumferential protrusion 13 (i.e., an inner edge on the inner surface of the casing) that extends radially inward from the inner surface of the outer casing sleeve 10 and circumferentially around the inner surface near the first open end 11 of the outer casing sleeve 10. When the functional insert 20 is inserted into the outer casing sleeve 10, the circumferential protrusion 13 is arranged to meet the corresponding edge 53 of the functional insert 20, such that the functional insert 20 is held within the outer casing sleeve 10. This ensures that the functional insert is held in the correct position along the length of the casing, for example, ensuring that the cartridge housing opening 26 is aligned with the open end of the casing 10.

[0071] Figure 6 A guide rail 14 is also shown, which extends downward from the circumferential protrusion 13 toward the closed end 12 along the elongation axis of the housing 10 and along the inner surface within the housing sleeve 10. The guide rail 14 is configured to... Figure 5B The corresponding slots 54 in the outer surface of the housing 50 of the functional insert 20 shown engage. In this way, the functional insert 20 must be inserted into the housing 10 in the correct orientation so that the guide rails 14 engage with the slots 54 to guide the functional insert 20 into the housing 10, thus holding the functional insert in the correct position. For example, this can be used to ensure that the functional insert 20 is correctly oriented in the device, and, for example, to ensure that the air inlet and charging port within the functional insert are correctly aligned with the corresponding openings in the closed end 12 of the housing sleeve 10. A plurality of guide rails 14 may be circumferentially positioned around the inner surface of the housing 10, with corresponding slots 54 arranged on the functional insert 20 to receive the guide rails. (See Figure 5 and...) Figure 6 In the example, two guide rails 14 are disposed on opposite surfaces within the housing 10, and corresponding slots 54 are disposed on opposite surfaces along the elongation axis of the functional insert 20.

[0072] The housing sleeve 10 and the functional insert preferably also include means for securing the functional insert 20 to the housing sleeve when the functional insert is properly received in the correct position within the housing sleeve 10. (See Figure 5 and...) Figure 6In the example shown, both the housing sleeve 10 and the functional insert include fastening features in the form of orifices 15 and 55. Specifically, orifices 15 are provided on the top surface of the guide rail 14 within the housing sleeve, and corresponding orifices 55 are provided on the edge 53 of the functional insert, wherein orifices 15 and 55 are positioned to align when the functional insert 20 is received in the correct position within the housing sleeve 10. The functional insert 20 can then be secured to the housing sleeve using fasteners such as screws, which engage through the two sets of orifices 15 and 55. In this way, the functional insert 20 can be secured within the housing sleeve 10 with a minimal number of fastening devices, thereby allowing for easy removal of the functional insert. Figure 4 Fasteners, in this case screws, are shown positioned within functional insert openings 55 on the upper surface of the functional insert below the mouthpiece 30. In this way, the screws are easily accessible, allowing for simple assembly of the electronic cigarette 1.

[0073] like Figure 5B As shown, preferably, the first end 24 of the functional insert 20 is angled to provide a greater longitudinal length of the functional insert along the portion of the insert 20 including the cartridge holder 21. In other words, the functional insert 20 is shaped to have a length that varies in the elongation direction from the first end 24 to the second end 25. In particular, the inclined surface at the first end 24 provides a greater longitudinal length of the functional insert in the region including the cartridge holder 21. This allows the cartridge holder 21 to occupy a larger volume of the device, thereby allowing the device to receive a larger cartridge 40 with a longer usage duration. As described above, the first cartridge holder 21 and the battery 22 are preferably positioned side-by-side in the functional insert 20. The battery and the first cartridge holder can be aligned along the elongation axis of the functional insert 20, thereby providing the most efficient way to maximize the volume of both the battery 22 and the elongated cartridge holder 21 in a functional insert 20 of a given size.

[0074] Figure 7 and Figure 8 An alternative example of an electronic cigarette 1 according to the present invention is shown. Similar to the foregoing examples, the electronic cigarette 1 includes a housing sleeve 100 having an open end and a closed end 102. Similar to the foregoing embodiments, the housing sleeve 100 has an air inlet 117 positioned on the closed end. The electronic cigarette 1 also includes a functional insert 200, such as… Figure 7A As shown, the functional insert includes electrical components, including a cartridge holder 221 arranged to receive a removable cartridge 40, wherein the functional insert 200 is arranged to be introduced through an opening end 101 of the housing sleeve 100 and fixed within the housing sleeve 100 to form an electronic cigarette 1.

[0075] Figure 7 to Figure 9The example differs from the previously described electronic cigarette 1 in that it further includes an air passage plug 210 disposed within the housing sleeve 100 between the closed end 102 of the housing sleeve 100 and the functional insert 200. The air passage plug 300 includes an air passage 310 that provides at least a portion of the airflow path connecting the air inlet 117 of the housing sleeve 100 to the cartridge housing 221. The air passage plug 300 is a material plug occupying a portion of the internal volume of the housing sleeve 100 at the first end 102. Specifically, the air passage plug 300 may comprise a piece of material that substantially fills the internal volume of the closed end 102 of the housing sleeve 100 and extends a length L1 from the closed end 102 toward the open end 101.

[0076] The air passage plug 300 serves multiple purposes. First, it allows air to flow into the device 1 only through a defined airflow path 310. In some devices that do not include such an air passage plug, air can enter the device through openings in the housing (e.g., a charging port), resulting in a reduced pressure drop when drawn in through the nozzle and potentially affecting aerosol generation and the proper triggering of the pressure sensor to activate the device. Furthermore, the air passage plug 300 protects the electrical components of the functional insert 200 by preventing contact between the functional insert 200 and the closed end within the housing sleeve 100.

[0077] By managing the airflow path into the device through the air passage 310 within the air passage plug 300, it is ensured that the airflow pressure applied at the nozzle due to suction is directed to the sensor, and the sensor is not triggered by airflow through the opening at the base of the device onto the airflow sensor. This also reduces the unused internal volume of the device, which could lead to a lack of sensor response. The air passage plug 300 is preferably made of a resiliently deformable material (e.g., an elastic material) that deforms to the shape of the internal volume within the housing sleeve 100 and provides shock absorption within the device to protect the electrical components of the functional insert 200. The air passage plug 300 also provides a seal across the cross-section of the internal volume of the housing sleeve 100, restricting airflow into the housing sleeve 100 except through the passage via the air passage 310. The air passage plug 300 preferably extends a length L1 from the closed end 102 of the housing sleeve toward the open end, a length equivalent to more than 25% of the total housing length L2 measured from the closed end 102 to the open end 101. This provides ample shock absorption to prevent damage from accidental drops of the device, and also offers the advantage of being able to properly position the cartridge holder 221 and arrange the cartridge air inlet within the device.

[0078] The air passage 310 is preferably arranged such that it passes through the air passage plug 300, that is, the air passage passes through the deformable elastomeric material block from the center. The air passage 310 and the air passage plug 300 accommodating the air passage can extend upwards from the closed end of the device until they are sufficient to engage with the inlet at the base of the cartridge holder, such that the air passage directly connects the air inlet of the housing 100 to the air inlet of the cartridge holder 221 (not shown). For example... Figure 7A In other examples shown, the elastomeric material forming the air channel plug 300 may extend only a certain distance along the length of the shell, thereby leaving a gap between the air channel plug 300 and the air inlet of the cartridge holder 221 and leaving an open internal volume of the shell.

[0079] The functional insert 200 preferably contacts the air passage plug 300 within the housing sleeve to provide shock absorption and prevent significant contact between the functional insert and the housing sleeve that could provide forces sufficient to damage the component. More preferably, the functional insert 200 engages with the air passage plug 300 such that they are attached together, and the functional insert 200 and the air passage plug 300 can be assembled into a single assembly, which can then be inserted and secured within the housing sleeve 100. This provides a significant advantage in terms of manufacturing simplicity.

[0080] The connection between the functional insert 200 and the air channel plug 300 can be achieved in a variety of different ways. Figure 7A In the example, PCB 220 extends along the elongation axis of device 1 toward a second base end 102 from its connection with battery 222 and cartridge housing 221, where it engages with a slot 301 provided in air channel plug 300. In this way, PCB 220, connected to the electronic components of functional insert 200, extends downward along the elongation axis toward the closed end of housing 100 and within a slot provided in air channel plug 300, which secures the PCB, thereby providing a mechanical connection between functional insert 200 and air channel plug 300.

[0081] The above and regarding Figure 7 and Figure 8 The electronic cigarette 1 may also include a charging port 302, which allows the device to be connected to a power source to charge the battery 222. (See Figures 7 and...) Figure 8In the example, the charging port 302 is disposed within the air channel plug 300 and connected to the electronic components of the functional insert 200 via an electrical circuit system 303. This provides another connection between the air channel plug 300 and the functional insert 200. Specifically, the charging port 302 is generally arranged to receive a metal orifice of a corded charger and can be fully or partially positioned within the elastomeric material of the air channel plug 300, with the open end of the charging port extending from the base such that it protrudes sufficiently to align with an orifice at the closed end 102 of the housing sleeve 100. The charging port 302 can be connected to the PCB 220 within a slot 301 within the air channel plug 300. In this way, using the existing features of these components, i.e., without requiring any additional fixing components, a mechanical and electrical connection is provided between the functional insert 200 and the air channel plug 300.

[0082] When the functional insert 200 and the connected air passage plug 300 are positioned Figure 7B When the air channel plug 300 is inside the housing sleeve 100, the lower end 304 of the air channel plug 300, including the charging port 302, engages with the interior of the closed end 102 of the housing sleeve 100. The charging port 302 is aligned with a corresponding opening in the base of the housing sleeve 100, and the opening 217 of the air channel 310 of the air channel plug 300 is aligned with the air inlet 117 at the base of the closed end 102 of the housing sleeve 100.

[0083] As mentioned above, in Figure 7A and Figure 7B In the example, a nozzle portion 30 is provided at the first end 224 of the functional insert 200, wherein the nozzle portion 30 is hingedly connected to the functional insert such that when the functional insert 200 is received within the housing sleeve 100, the nozzle can... Figure 7A The device moves between the open and closed positions shown, in which the open end 101 of the outer casing sleeve is sealed, and the second cartridge holder 32 is connected to the first cartridge holder 221 of the functional insert 200. These components are as described above with respect to Figures 1 to 200. Figure 6 As described.

[0084] Figure 8Another example of an electronic cigarette 1 is schematically shown, comprising a functional insert 200 and an air passage plug 300 received within a housing sleeve 100 to form the electronic cigarette 1. As described above, the air passage plug 300 includes a plug of resilient material positioned within the housing sleeve at a closed end to separate the inner surface of the closed end from the functional insert 200 and to provide damping performance and control over the airflow path from the air inlet 117 at the closed end 102 of the housing sleeve 100 to the first cartridge housing 221. As described above, a PCB 220 connected to the functional insert 200 extends downward along the elongation axis of the electronic cigarette 1 to engage with a slot 301, thereby providing a mechanical connection between the air passage plug 300 and the functional insert 200.

[0085] Figure 8 The air flow sensor housing 240 is further shown, which houses the air flow sensor (such as...) Figure 9 (As shown) An airflow sensor is housed within an internal cavity arranged to hold it. This internal cavity is in fluid communication with the first cartridge holder 221, such that the airflow sensor is triggered when the user inhales at the mouthpiece 30. The airflow sensor is also connected to a power source to activate power supply from the battery to the heater upon detecting a change in air pressure corresponding to the user's inhalation at the device. Figure 8 As shown, the airflow sensor housing 240 also includes a separate airflow passage 241 that is not connected to the internal chamber. The airflow passage 241 connects to the airflow path 310 within the airflow channel plug 300. Therefore, the airflow passage 241 of the airflow sensor housing 240 and the airflow path 310 of the airflow plug together provide an airflow path from the air inlet 117 in the housing sleeve 100 to the cartridge holder 221. The airflow sensor housing 240 may also comprise a material similar to that of the airflow plug 300, such as a resiliently deformable material (e.g., an elastic material). The airflow plug 300 and the airflow sensor housing 240 together provide an airflow path from the inlet to the cartridge holder 221 and ensure that this airflow path does not pass over the airflow sensor. This prevents the airflow sensor from being triggered by airflow passing through the inlet 117, but only by the decrease in air pressure caused by the user inhaling at the mouthpiece, which is directly delivered to the internal chamber of the airflow sensor housing. (Refer to...) Figure 9 These features are described in more detail.

[0086] Figure 9 An enlarged portion of the base end 102 of the electronic cigarette 1, opposite to the mouthpiece end 101, is shown. Figure 9An air passage plug 300 is shown positioned between the functional insert 200 and the inner surface of the closed base end 102 of the housing 100. Similarly, a PCB 220 connected to the functional insert 200 extends downward into the slot 301 of the air passage plug 300 and is connected via an electrical circuit system 303 to a charging port 302, which is embedded in the air passage plug and accessible through an opening at the base of the housing sleeve 100.

[0087] Figure 9 The airflow path from the inlet 117 in the outer casing 100 to the smoke cartridge holder 221 is depicted by a series of arrows A. Figure 9 An air flow sensor 242 is also shown, positioned within an internal cavity 243 within the surrounding air sensor housing 240. (See also:) Figure 9 As shown in the cross-sectional view, the airflow sensor cavity 243 is connected to the airflow path leading to the mouthpiece via an airflow cavity inlet 244. The airflow cavity inlet 244 extends upward from the cavity 243 within the sensor housing 240 toward the cartridge holder 221, and pressure changes caused, for example, by the user's inhalation are transmitted to the airflow sensor cavity 243.

[0088] Figure 9 An airflow passage 241 extending from the air inlet 117 through the airflow sensor housing 240 is also shown. As clearly shown in the figures, the airflow passage 241 is separated from the airflow sensor chamber 243, ensuring that the airflow passing through this path does not pass over the airflow sensor 242. This ensures improved functionality of the airflow sensor 242, particularly enhanced responsiveness.

[0089] In this example, the air channel plug 300 extends upward from the closed end 102 of the housing to meet the airflow sensor housing 240. Furthermore, an airflow channel 310 provided in the air channel plug 300 directly connects the air inlet 117 in the housing sleeve 100 to the airflow through channel 241 in the airflow sensor housing 240. Therefore, the air channel plug 300 and the airflow sensor housing 240 together form an airflow path from the air inlet to the cartridge holder 221. Specifically, as indicated by arrow A, air enters the air inlet 117, passes through the airflow channel 310 of the air channel plug 300, enters the airflow through channel 241 of the airflow sensor housing 240, and is guided to the base of the cartridge holder 221 to extract the vapor generated therein and carry the vapor to the mouthpiece 30. Because there is no direct airflow from the inlet to the airflow sensor, the airflow sensor is more sensitive to changes in airflow pressure caused by inhalation at the mouthpiece.

Claims

1. An electronic cigarette comprising: an outer housing sleeve having an open end and a closed end; a functional insert comprising a battery and electronic circuitry for supplying electrical power from the battery to a cartomizer received in a cartomizer seat during use; wherein the functional insert is arranged to be introduced through the open end of the outer housing sleeve and retained within the outer housing sleeve, wherein the functional insert comprises a first housing portion and a second housing portion; wherein the first and second housing portions are configured to be connected along a longitudinal interface to enclose the electrical components within, wherein the first and second housing portions are offset relative to each other such that one housing portion extends further in a direction towards the closed end of the housing sleeve than the other housing portion.

2. The electronic cigarette of claim 1, wherein, the functional insert comprises a cartomizer seat for receiving a removable cartomizer containing a liquid to be vaporized.

3. The electronic cigarette of claim 2, wherein, the cartomizer seat is arranged such that during use, when a cartomizer is received in the cartomizer seat, the cartomizer is entirely located within the outer housing sleeve.

4. The electronic cigarette of claim 1, wherein, the functional insert comprises a first end positioned at the open end of the housing sleeve and a second end positioned towards the closed end of the housing sleeve, the electronic cigarette further comprising: a mouthpiece at the first end of the functional insert, the mouthpiece being movable between an open position and a closed position.

5. The electronic cigarette of claim 4, wherein, the mouthpiece is movable by a hinge mechanism connecting the mouthpiece to the first end of the functional insert.

6. The electronic cigarette of claim 5, wherein, the hinge mechanism comprises an L-shaped lever connecting a central point on the mouthpiece to a point near an edge of the first end of the functional insert.

7. The electronic cigarette of claim 1, wherein, the outer housing sleeve further comprises a rim extending circumferentially around an inner surface of the sleeve at the open end; wherein the functional insert is configured to engage with the rim.

8. The electronic cigarette of claim 7, wherein, the functional insert comprises a circumferential rim extending around an outer surface of the functional insert, wherein the circumferential rim of the functional insert is arranged to contact the rim of the housing sleeve to retain the functional insert in place within the housing sleeve.

9. The electronic cigarette of any of the preceding claims 1-8, wherein, the housing sleeve comprises a first aperture on an inner surface at the open end and the functional insert comprises a corresponding second aperture arranged to align with the first aperture to allow the housing sleeve and the functional insert to be attached by a fastener passing through the aligned apertures.

10. The electronic cigarette of any of claims 1-8, wherein, the first and second housing portions comprise a thermoplastic material suitable for thermoplastic or ultrasonic welding.

11. The electronic cigarette of any of claims 1-8, wherein, the first and second housing portions comprise engagement structures configured to attach to each other, wherein the engagement structures provide a snap lock or friction fit.

12. The electronic cigarette of any of claims 1-8, wherein, the housing sleeve further comprises at least one guide rail arranged along an inner surface and the functional insert comprises a slot configured to engage with the guide rail.

13. The electronic cigarette of claim 12, wherein, the guide rail further comprises an aperture for receiving a fastener to attach the insert to the housing sleeve.

14. The electronic cigarette of any of claims 1-8, wherein, The functional insert includes a first end comprising an opening to the cartridge seat and a second end at an opposite end of the functional insert; wherein the first end of the functional insert is angled such that the functional insert has an increased length along a longitudinal line through the cartridge seat.

15. The electronic cigarette of any of the preceding claims 1-8, wherein, The functional insert is elongate and the functional insert comprises a battery and a cartridge seat; wherein the battery and the cartridge are positioned side by side along an elongate axis of the functional insert.

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