A hand-held charger

Abstract

A hand-held charger (1) is described. The charger (1) is adapted to receive an aerosol generating device (100). The charger (1) includes an outer housing (2) having a first main side (4), a second main side, opposite the first main side, and an opening (10) between the first and second main sides. A docking assembly (12) of the charger (1) is adapted to be transitioned between an inserting configuration that allows the aerosol generating device (100) to be inserted into the docking assembly, and a retaining configuration that retains the received aerosol generating device (100) in the outer housing (2). The docking assembly (12) includes a cover (12b) that covers the opening (10) when the docking assembly (12) is in the retaining configuration. A charging terminal is mechanically and electrically connectable to the aerosol generating device (100) when retained in the docking assembly (12). The charger (1) also includes a wireless charging assembly with a first receiving coil for wireless inductive charging, and a printed circuit board assembly. The printed circuit board has a printed circuit board and one or more electronic components mounted on the printed circuit board that define a power circuit adapted to supply power received from the first receiving coil to the charging terminal.

Description

[0001] A HAND-HELD CHARGER

[0002] Technical Field

[0003] The present disclosure relates generally to a portable (hand-held) charger, and in particular to a charger that is adapted to charge an energy storage device, e.g., a rechargeable battery, of an aerosol generating device. The aerosol generating device is adapted to heat aerosol generating material to generate an aerosol for inhalation by a user.

[0004] A wireless charging assembly of the charger may be used for direct wireless charging of the energy storage device of the aerosol generating device, or for wireless charging of an internal energy storage device (e.g., a rechargeable battery) of the charger.

[0005] Technical Background

[0006] Devices which heat, rather than bum, an aerosol generating material to produce an aerosol for inhalation have become popular with consumers in recent years. A commonly available reduced-risk or modified-risk device is the heated material aerosol generating device, or so- called heat-not-bum device. Devices of this type generate an aerosol or vapour by heating an aerosol generating material to a temperature typically in the range 150°C to 300°C, and in some cases as high as 350°C. This temperature range is quite low compared to an ordinary cigarette. Heating the aerosol generating material to a temperature within this range, without burning or combusting the aerosol generating material, generates a vapour which typically cools and condenses to form an aerosol for inhalation by a user of the device.

[0007] The aerosol generating material may be a solid or liquid. For example, the aerosol generating article may include a solid or semi-solid substrate of plant derived material, such as tobacco, or it may include a wick and a heater to produce vapour from aerosol generating liquid stored in a capsule or tank. When a user operates the aerosol generating device, liquid that has soaked into the wick is heated by the heater, producing a vapour which cools and condenses to form an aerosol which may then be inhaled. An aerosol generating article (sometimes called a pod or cartridge) may be received in the aerosol generating device and may include a liquid store, a liquid transfer element (e.g., a wick) and a heater. Electrical contacts may provide an electrical connection between the heater and an energy storage device of the aerosol generating device. The energy storage device may be a rechargeable battery that may be charged from an external power source such as a universal serial bus (USB) charger, for

[0008] P51800WO-6605 example. A stick that looks like an ordinary cigarette may also be used as an aerosol generating article.

[0009] In some arrangements, the aerosol generating device may be charged by inserting it into a portable (hand-held) charger (sometimes called a “pocket charger”). The charger may include an energy storage device such as a rechargeable battery that may be used instead of an external power source to charge the battery of the aerosol generating device when it is inserted into the charger. The battery of the charger may be charged from an external power source such as a USB charger, for example. The battery of the aerosol generating device may hold enough charge to provide the user with a few consecutive vaping sessions (e.g., two or three) before its battery needs to be recharged by inserting it into the charger. The battery of the charger may have a larger capacity and may hold enough charge to allow the aerosol generating device to be charged multiple times before it needs to be re-charged from the external power source.

[0010] Wireless charging of portable consumer devices is known. The portable consumer device may include a wireless charging assembly with a receiving coil suitable for wireless inductive charging of a rechargeable battery of the portable consumer device. A wireless external power source such as a wireless charger will include an inductive transmitting coil that creates an electromagnetic field when an electric current flows through it. The inductive transmitting coil and the inductive receiving coil may also be referred to as a primary coil and a secondary coil, respectively. When the receiving coil of the wireless charging assembly of the portable consumer device is in close proximity with the wireless charger, the electromagnetic field generates an electric current in the receiving coil of the wireless charging assembly that may be provided to a charging circuit and used to charge the battery. Wireless charging is a convenient way to charge the battery without having to physically and / or mechanically connect a charging cable to the portable consumer device. New ingress protection standards may also mean that wired charging assemblies, e.g., those that might include a plug socket such as a USB socket (receptacle) for receiving a USB charging cable (plug), and which therefore also require an opening in the housing, may no longer be suitable for use in portable consumer devices. Using wireless charging may also avoid the need for a user to carry or use a separate charging cable.

[0011] There is a need for an improved aerosol generating system with an aerosol generating device and a charger where the charger is designed specifically for wireless charging of a battery or

[0012] P51800WO-6605 other energy storage device using a wireless charging assembly that is positioned within a housing of the charger. In particular, there is a need for an improved charger that has a mechanical structure that is suitable for wireless charging.

[0013] Summary of the Disclosure

[0014] According to a first aspect of the present disclosure, there is provided a hand-held charger (or “pocket charger”) adapted to receive an aerosol generating device, the charger comprising: an outer housing having a first main side, a second main side, opposite the first main side, and an opening between the first and second main sides; a docking assembly adapted to be transitioned between an inserting configuration that allows the aerosol generating device to be inserted into the docking assembly, and a retaining configuration that retains the received aerosol generating device in the outer housing, wherein the docking assembly includes a cover (or “door”) that covers the opening when the docking assembly is in the retaining configuration; a charging terminal mechanically and electrically connectable to the aerosol generating device (e.g., to a complementary charging terminal of the aerosol generating device) when retained in the docking assembly; a wireless charging assembly comprising a first receiving coil for wireless inductive charging that is mounted to the outer housing; and a printed circuit board assembly (PCBA) comprising a printed circuit board (PCB) and one or more electronic components mounted on the PCB and defining a power circuit adapted to supply power received from the first receiving coil to the charging terminal.

[0015] The charger may be used to provide efficient wireless charging if it is not possible to fit a wireless charging assembly inside the housing of the aerosol generating device. Typically, a receiving coil for wireless charging has a wide and flat shape to provide good charging efficiency. On the contrary, the aerosol generating device preferably has a small and rounded shape so that it may be easily grasped by the user. There is therefore a direct contradiction between the preferred shape of the receiving coil and the preferred shape of the housing of the aerosol generating device. On the other hand, because a hand-held charger is already designed to receive and retain the aerosol generating device inside its outer housing, and also already contains other internal components, its shape may be suitable for implementing wireless charging by including a wireless charging assembly.

[0016] P51800WO-6605 The first receiving coil is mounted to the outer housing, either directly or more typically indirectly by one or more interposing components as described below. For example, if the first receiving coil is mounted on a main surface of a substrate (e.g., a shielding member) the opposite main surface may be mounted to the outer housing. One or more interposing layers such as heat dissipating and / or protecting layers may also be provided between the first receiving coil (or the substrate) and the outer housing. It should therefore not be assumed that the first receiving coil is fixed directly to the outer housing. In fact, the first receiving coil may simply be captured between the outer housing and a second cover or panel that forms part of the exterior of the charger. If the first receiving coil is mounted on the docking assembly, it may result in complicated internal wiring. It may also be difficult to find an appropriate space on the docking assembly that is sufficiently flat and wide to accommodate the first receiving coil. These problems may be overcome by mounting the first receiving coil on the outer housing.

[0017] The aerosol generating device may comprise: a first energy storage device (e.g., a first rechargeable battery); a heating chamber adapted to receive an aerosol generating article; and a heater adapted to heat the aerosol generating article when received in the heating chamber. A part of the heater may also be implemented in the aerosol generating article.

[0018] The aerosol generating device may have a first end that comprises the heating chamber and an opening that allows the aerosol generating article to be received in the heating chamber. The aerosol generating device may have a second end, opposite the first end.

[0019] The charger may comprise a second energy storage device, e.g., a second rechargeable battery. The second energy storage device may be adapted to charge the first energy storage device when the aerosol generating device is retained in the docking assembly, and in particular the first energy storage device may be charged through the charging terminal of the charger that is mechanically and electrically connectable to the aerosol generating device when retained in the docking assembly. The charging terminal of the charger may be mechanically and electrically connectable to a complementary charging terminal of the aerosol generating device, for example. A magnetic connection may be used around the respective charging terminals so that a secure connection may be maintained. The charging terminal of the charger may be electrically connected to the second energy storage device by a

[0020] P51800WO-6605 suitable charging circuit (e.g., a charging integrated circuit (IC)) so that power from the second energy storage device may be supplied to the charging terminal for charging the aerosol generating device. The power circuit may also be adapted to supply power received from the first receiving coil directly to the charging terminal of the charger, i.e., so that power from the first receiving coil is not supplied to the second energy storage device, and then from the second energy storage device to the charging terminal, but is instead supplied directly to the charging terminal through the power circuit. If the charger includes a second energy storage device, the power from the first receiving coil may be supplied to the second energy storage device and / or directly to the charging terminal as required. Unavoidable losses are normally incurred when the second energy storage device of the charger is charged and discharged - i.e., when an electric charge is inputted to the second energy storage device and outputted from it. Supplying the generated power from the first receiving coil directly to the charging terminal of the charger therefore avoids such losses and the overall efficiency of the wireless charging may be increased. A direct supply of power from the first receiving coil to the charging terminal of the charger may also be beneficial when the wireless charging assembly receives power from wireless charging and the second energy storage device is in a fully -charged state.

[0021] In some arrangements, the second energy storage device may also be charged from an external power source by using a charging cable and the charger may include a wired charging assembly. The wired charging assembly may comprise a charging socket (or receptacle) for receiving a charging cable (plug), for example. The charging socket (or receptacle) may be a USB socket such as a USB type-C (USB-C) socket, for example. The charging cable (plug) may be a USB charging cable such as a USB-C charging cable, for example. The user may then selectively charge the second energy storage device wirelessly using the wireless charging assembly or by using a charging cable. The charging socket or receptacle of the wired charging assembly may be mounted on a rear surface of the PCB. If the charger comprises both wireless and wired charging assemblies, wireless charging may be used only when wired charging is unavailable. This is because the efficiency of wired charging is normally higher than the efficiency of wireless charging.

[0022] The one or more electronic components mounted on the PCB and that define the power circuit may include a controller, e.g., a microprocessor unit (MCU), and a wireless charging receiver circuit that may both be implemented as integrated circuits (ICs). The electric current generated in the first receiving coil is an alternating current (AC) current. The wireless

[0023] P51800WO-6605 charging receiver circuit may be adapted to convert the AC current to a direct current (DC) current. The DC current may have an appropriate amplitude and this may be output by the wireless charging receiver circuit, or by a converter circuit that is electrically connected to the wireless charging receiver circuit and the charging terminal and / or the second energy storage device if provided.

[0024] The opening in the outer housing may provide access to an interior space of the outer housing in which the docking assembly is located and which is shaped and sized to accommodate the aerosol generating device when it is retained in the docking assembly in the retaining configuration. In the inserting configuration, at least part of the docking assembly may extend out of the outer housing so that the user may insert the aerosol generating device into the docking assembly. At least part of the opening is uncovered by the cover (or “door”) when the docking assembly is in the inserting configuration. The docking assembly may pivot when moving between the retaining and inserting configurations. In particular, the docking assembly may be pivotally mounted to the outer housing or to an inner chassis or rigid support of the charger.

[0025] The outer housing and the cover (or “door”) preferably form part of the exterior of the charger. The outer housing may be formed from a suitable plastics material or a metal or metal alloy such as aluminium, for example.

[0026] The first receiving coil preferably comprises a plurality of turns arranged substantially in a common plane. The first receiving coil may be formed of wire having a suitable outer diameter, and may have any suitable length, width and thickness. The receiving coil may have any suitable nominal operating voltage.

[0027] A shielding member may be provided to shield the internal components of the charger from the electromagnetic field that is generated by an inductive transmitting coil of an external wireless charger, for example, during wireless charging. The shielding member may be a ferrite sheet or a sheet of ferrite-containing material, for example. It will be understood that ferrite is typically an iron-oxide containing magnetic ceramic material. The shielding member may be positioned between the first receiving coil and the internal components. In one arrangement, the wireless charging assembly may include a shielding member as a substrate on which the first receiving coil is mounted or in which the first receiving coil is embedded. Alternatively, the first receiving coil may be mounted on an outer main surface of a non-

[0028] P51800WO-6605 shielding substrate or embedded in the substrate, and a shielding member may be mounted on an inner main surface of the substrate - i.e., on the main surface of the substrate facing towards the internal components.

[0029] The first receiving coil may be located at the first main side of the outer housing. This may allow the first receiving coil to be relatively wide and flat for more efficient wireless charging.

[0030] The first receiving coil (and any substrate) may be received in a recess in an outer surface of the first main side of the outer housing. Locating the first receiving coil in a recess may minimise the distance between the first receiving coil and the transmitting coil of the external wireless charger during wireless charging, for example as compared with positioning the first receiving coil inside the outer housing or mounting it to the inner surface of the first main side of the outer housing. Minimising the distance between the receiving coil and the transmitting coil may improve wireless charging efficiency. This arrangement is also beneficial in view of avoiding any interference between the first receiving coil and the internal components of the charger - i.e., those components that are located inside the outer housing. It also allows the first receiving coil to be added to the charger after it has been mostly assembled.

[0031] A heat dissipating layer may be positioned between the first receiving coil and the outer surface of the first main side of the outer housing. If the first receiving coil is mounted on, or embedded in, a substrate, the heat dissipating layer may be positioned between the substrate and the outer housing. The heat dissipating layer may help to dissipate or transfer heat generated by the first receiving coil during wireless charging into the outer housing. The heat dissipating layer may also be received in the recess in the outer surface, underneath the first receiving coil. The heat dissipating layer may be a thermally conductive adhesive tape or an adhesive foil made from a suitable metal or metal alloy such as aluminium, for example.

[0032] A protecting layer may be positioned between the first receiving coil and the heat dissipating layer. If the first receiving coil is mounted on, or embedded in, a substrate, the heat dissipating layer may be positioned between the substrate and the heat dissipating layer. The protecting layer may be a plastics or polymer material, e.g., a layer of polyphenylene sulphide (PPS) material. In one arrangement, a second protecting layer may be positioned between the first receiving coil and a second cover or panel - see below - that may cover the first receiving coil. In other words, the first receiving coil (and any substrate) may be sandwiched

[0033] P51800WO-6605 between two protecting layers, for example an inner protecting layer between the first receiving coil and the outer housing and an outer protecting layer between the first receiving coil and the second cover or panel. The protecting layers may be larger than the first receiving coil (and any substrate) and they may be sealed together around their periphery, e.g., by welding or gluing. In one particular example, the protecting layers may be sealed by a vacuum ultrasonic welding process where the edges of the protecting layers are heated under vacuum and sealed together so as to enclose the first receiving coil (and any substrate) in a protective envelope. The protecting layers may be sealed around any lead wires that extend from the first receiving coil - e.g., the at least one first wire mentioned below that electrically connects the first receiving coil to the PCBA. In this arrangement, the first receiving coil is effectively sealed inside the protective envelope for improve ingress protection. A heat dissipating layer may be adhered to an inner main surface of the protective envelope that faces towards the outer surface, i.e., to a main surface of the inner protecting layer. Alternatively or additionally, a heat dissipating layer may be adhered to an inner main surface of a substrate - i.e., on the main surface of the substrate facing towards the outer housing. The first receiving coil may be mounted on an outer main surface of the substrate - i.e., on the main surface facing away from the outer housing and towards the underside of the second cover or panel.

[0034] As mentioned briefly above, the charger may comprise a second cover or panel that covers the recess and which forms part of the exterior of the charger. The second cover or panel therefore covers and protects the first receiving coil that is received in the recess. The first receiving coil, and any substrate or other layers, may therefore be captured in the recess between the outer housing and the second cover or panel and it is not necessary to fix any component to the outer housing. The second cover or panel may be a press-fit in the recess so that no mechanical fixings are required to fix the second cover or panel to the outer housing. The second cover or panel is preferably made of a suitable non-electrically conductive material that does not interfere with wireless charging. For example, the second cover or panel may be made of a plastics material because an electrically conductive material cannot be positioned between the first receiving coil of the wireless charging assembly and the transmitting coil of the external wireless charger if a wireless connection between the receiving and transmitting coils is to be established. The second cover or panel may be used to cover the recess even if the charger does not include a wireless charging assembly - e.g., if there is no first receiving coil positioned in the recess. This may provide a uniform appearance for the charger irrespective of whether or not it has a wireless charging assembly.

[0035] P51800WO-6605 If the charger does not have a wireless charging assembly, the second cover or panel may be sized accordingly - i.e., so that it would occupy the space within the recess that would otherwise be occupied by the first receiving coil and any substrate.

[0036] The charger may comprise a first through-hole in the first main side of the outer housing. At least one first wire may be electrically connected between the first receiving coil and the PCBA, e.g., to a surface of the PCB. Each first wire may pass through the first through-hole. If a heat dissipating layer is positioned between the first receiving coil and the outer housing, it may include a through-hole that is aligned with the first through-hole. The outer housing may further comprise a third side opposite the opening. The third side may extend between the first and second main sides. The third side may be flat or curved, for example. The first through-hole may be positioned closer to the third side than the opening. This means that each first wire does not interfere with the docking assembly. Providing a direct path for the first wire(s) through the outer housing means that the first wire(s) may also have a shorter length, which may reduce electrical losses. As noted above, the electric current flowing in the first wire(s) is the AC current that is generated by the first receiving coil. The electrical losses may therefore include skin effect losses, for example, which may be proportional to the length of the first wire(s). The end of the first wire(s) may further comprise a first connector that is compatible with a first connector mounted to the PCB. For example, one of the first connectors may be a male-type connector and the other may be a female-type connector that can be engaged together, i.e., the first connectors are “plug-in” connectors.

[0037] The charger may comprise a third cover that covers the PCBA, in particular it may contact a front surface of the PCB. The third cover may be positioned within the outer housing and is designed to protect the PCBA and prevent its movement. The third cover may be formed as a substantially planar member. A second through-hole may be provided in the third cover. The first wire(s) may also pass through the second through-hole. More particularly, the second through-hole may allow access through the third cover to the underlying surface of the PCB and the first connector that is mounted to the PCB may be aligned with the second through- hole. Providing a direct path for the first wire(s) through the outer housing and the third cover means that the first wire(s) may have a shorter length, which may reduce electrical losses.

[0038] The first and second main sides of the outer housing may be spaced apart along a transverse axis of the charger, where the transverse axis is perpendicular to a longitudinal axis of the charger. The third side and the opening of the outer housing may be spaced apart along a

[0039] P51800WO-6605 lateral axis of the charger, where the lateral axis is perpendicular to both the longitudinal and transverse axes of the charger. The first and second through-holes may be offset when viewed along a direction that is parallel to a normal of the first main side of the outer housing, e.g., when viewed along the transverse axis. Because the first and second through-holes are not directly aligned, it may minimise the passage of dust etc. from outside the outer housing towards the PCBA.

[0040] The charger may further comprise a chassis or rigid support. A mechanical fixing (e.g., a screw) may be used to fix the third cover and the PCB to the chassis. The mechanical fixing may be received in a third through-hole that is formed in the third cover. The mechanical fixing and the first through-hole may be at least partially aligned or overlapping when viewed along a direction that is parallel to a normal of the first main side of the outer housing, e.g., when viewed along the transverse axis. This may minimise the passage of dust etc. to the PCBA and also provides a convenient way to fix the position of the PCB within the outer housing.

[0041] The docking assembly may further comprise a gear mechanism that allows the docking assembly to transition between the retaining and inserting configurations. The gear mechanism may be positioned inside the outer housing and may be closer to the second main side of the outer housing than the first main side. This means that each first wire does not interfere with the gear mechanism. Providing a direct path for the first wire(s) through the outer housing means that the first wire(s) may have a shorter length, which may reduce electrical losses.

[0042] The gear mechanism may be supported on a chassis or rigid support. The chassis that supports the gear mechanism may be the same chassis to which the third cover and PCB are fixed, or a separate chassis. The first main side of the outer housing, the PCBA, the chassis, the gear mechanism, and the second main side of the outer housing may be arranged in that order along a direction that is parallel to a normal of the first main side - i.e., along the transverse axis. A rear surface of the PCB may be supported by the chassis. Spacing the PCBA away from the first receiving coil may protect the one or more electronic components that are mounted on the PCB from the electromagnetic field generated during wireless charging. This particular order of the internal components may also be beneficial because it allows a single chassis having a simple design to securely support both the PCB and the gear mechanism on respective surfaces.

[0043] P51800WO-6605 As noted above, if the charger includes a charging socket or receptacle adapted to receive a charging plug of a charging cable, the charging socket or receptacle may be mounted on the rear surface of the PCB. This may avoid any interference between the gear mechanism and the charging socket or receptacle.

[0044] The wireless charging assembly may further comprise a second receiving coil for wireless inductive charging. The second receiving coil may be mounted to the outer housing, either directly or more typically indirectly by one or more interposing components as described above. For example, if the second receiving coil is mounted on a main surface of a substrate (e.g., a shielding member) the opposite main surface may be mounted to the outer housing. One or more interposing layers such as heat dissipating and / or protecting layers may also be provided between the second receiving coil (or the substrate) and the outer housing. It should therefore not be assumed that the second receiving coil is fixed directly to the outer housing. The second receiving coil may be positioned at the second main side of the outer housing. The first and second receiving coils may therefore be positioned at opposite main sides of the outer housing. This allows the charger to provide wireless charging by placing either the first or second main side of the outer housing adjacent the external wireless charger without significantly increasing the complexity of the internal structure of the charger. At least one second wire may be electrically connected between the second receiving coil and a front face of the PCB by detouring the gear mechanism. The second receiving coil may be substantially the same as the first receiving coil. In one arrangement, the wireless charging assembly may include a second shielding member as a second substrate on which the second receiving coil is mounted or in which the second receiving coil is embedded. Alternatively, the second receiving coil may be mounted on an outer main surface of a non-shielding second substrate or embedded in the second substrate, and a second shielding member may be mounted on an inner main surface of the second substrate - i.e., on the main surface of the second substrate facing towards the internal components. The second receiving coil (and any second substrate) may be received in a recess in the second main side of the outer housing. A heat dissipating layer and / or one or more protecting layers may be provided adjacent the second receiving coil as described above for the first receiving coil. The end of the second wire(s) may further comprise a second connector that is compatible with a second connector mounted to the PCB. For example, one of the second connectors may be a male-type connector and the other may be a female-type connector that can be engaged together, i.e., the second connectors are “plug-in” connectors.

[0045] P51800WO-6605 A fourth through-hole may be provided in the second main side of the outer housing. The second wire(s) may be received through the fourth through-hole. If a heat dissipating layer is positioned between the second receiving coil and the outer housing, it may include a through- hole that is aligned with the fourth through-hole. The gear mechanism may be positioned adjacent the third side of the outer housing. The fourth through-hole may be positioned closer to the opening than the third side. This means that each second wire does not interfere with the gear mechanism.

[0046] The aerosol generating article may comprise aerosol generating material.

[0047] The aerosol generating material may comprise any type of solid or semi-solid material. Example types of aerosol generating solids include powder, granules, pellets, shreds, strands, particles, gel, strips, loose leaves, cut fdler, porous material, foam material or sheets. The aerosol generating material may comprise plant derived material and in particular, may comprise tobacco. It may advantageously comprise reconstituted tobacco, for example including tobacco and any one or more of cellulose fibres, tobacco stalk fibres and inorganic fillers. The solid or semi-solid aerosol generating material may be heated by the heater of the aerosol generating aerosol generating device - e.g., when arranged in the heating chamber.

[0048] The aerosol generating material may comprise an aerosol-former. Examples of aerosolformers include polyhydric alcohols and mixtures thereof such as glycerine or propylene glycol. Typically, the aerosol generating material may comprise an aerosol-former content of between approximately 5% and approximately 50% on a dry weight basis. In some embodiments, the aerosol generating material may comprise an aerosol-former content of between approximately 10% and approximately 22% on a dry weight basis, and possibly approximately 15% on a dry weight basis.

[0049] The aerosol generating device may be adapted to heat the aerosol generating material or substrate, without burning the aerosol generating material, to volatise at least one component of the aerosol generating material and thereby generate a heated vapour which cools and condenses to form an aerosol for inhalation by a user of the aerosol generating device. The volatile compounds released from the aerosol generating material may include nicotine or flavour compounds such as tobacco flavouring.

[0050] P51800WO-6605 In general terms, a vapour is a substance in the gas phase at a temperature lower than its critical temperature, which means that the vapour may be condensed to a liquid by increasing its pressure without reducing the temperature, whereas an aerosol is a suspension of fine solid particles or liquid droplets, in air or another gas. It should, however, be noted that the terms ‘aerosol’ and ‘vapour’ may be used interchangeably in this specification, particularly with regard to the form of the inhalable medium that is generated for inhalation by a user.

[0051] When the aerosol generating material is depleted, the aerosol generating article may be removed from the aerosol generating device and a new article may be inserted.

[0052] The aerosol generating article may comprise a mouthpiece through which the generated aerosol may be inhaled.

[0053] According to any second aspect of the present disclose, there is provided an aerosol generating system comprising an aerosol generating device and a hand-held charger, both as described above.

[0054] Brief Description of the Drawings

[0055] Figure 1 is a diagrammatic perspective view of a hand-held charger with a docking assembly in a retaining position and showing a first main side of the outer housing;

[0056] Figure 2 is a diagrammatic perspective view of the charger of Figure 1 showing a second main side of the outer housing;

[0057] Figure 3 is a diagrammatic perspective view of the charger of Figure 1 showing a first receiving coil located in a recess in the first main side of the outer housing;

[0058] Figure 4 is a diagrammatic perspective view of the charger of Figure 1 showing a second receiving coil located in a recess in the second main side of the outer housing;

[0059] Figure 5 is a diagrammatic exploded view of the charger of Figure 1 showing a first receiving coil, a cover or panel, a heat dissipating layer, and a protecting layer;

[0060] Figure 6 is a diagrammatic exploded view of a first receiving coil and a pair of protective layers;

[0061] Figure 7 is a diagrammatic perspective view of a protective envelope comprising a first receiving coil sealed inside protective layers;

[0062] Figure 8 is a diagrammatic perspective view showing a heat dissipating layer fixed to a surface of the protective envelope of Figure 7;

[0063] P51800WO-6605 Figure 9 is a diagrammatic perspective view showing a heat dissipating layer fixed to a surface of a substrate on which the first receiving coil is mounted;

[0064] Figure 10 is a diagrammatic perspective view showing a first main side of an outer housing;

[0065] Figure 11 is a diagrammatic perspective view showing a second main side of the outer housing of Figure 10;

[0066] Figure 12 is a diagrammatic perspective view showing a first receiving coil, a second receiving coil, an energy storage device of the charger, and a cover part of the docking assembly;

[0067] Figure 13 is a diagrammatic perspective view showing a cover part of a docking assembly, a charging terminal of the charger, protective envelopes enclosing first and second receiving coils, a printed circuit board of the charger mounted to a chassis, and a cover that covers the printed circuit board;

[0068] Figure 14 is a diagrammatic perspective view showing a docking assembly, a printed circuit board of the charger mounted to a chassis, and a cover that covers the printed circuit board;

[0069] Figure 15 is a diagrammatic perspective view showing a docking assembly, a printed circuit board of the charger mounted to a chassis, and a gear mechanism;

[0070] Figure 16 is a diagrammatic top view of a printed circuit board and a cover that covers the printed circuit board;

[0071] Figure 17 is a diagrammatic view of the cover of Figure 16;

[0072] Figure 18 is a diagrammatic view of a first main side of an outer housing showing the offset between openings in the outer housing and a cover, and the overlap between the opening in the outer housing and a mechanical fixing; and

[0073] Figure 19 is a diagrammatic perspective view showing the charger of Figure 1 with the docking assembly in an inserting configuration that allows the user to insert the aerosol generating device into the docking assembly.

[0074] Detailed Description of Embodiments

[0075] Embodiments of the present disclosure will now be described by way of example only and with reference to the accompanying drawings.

[0076] Referring initially to Figures 1 to 4 there is shown diagrammatically an example of a handheld charger (or “pocket charger”) 1. The charger 1 includes an outer housing 2 having a first main side 4 and a second main side 6. The first and second main sides 4, 6 are spaced apart along a transverse axis of the charger 1 - the transverse axis is labelled “Z” in Figure 1 and is perpendicular to both a longitudinal axis (labelled “X”) and a lateral axis (labelled “Y”) of the

[0077] P51800WO-6605 charger 1 as shown. The outer housing 2 also includes a flat third side 8 and an opening 10 that is between the first and second main sides 4, 6. The third side 8 may also be curved, for example.

[0078] The charger 1 includes a docking assembly 12. The docking assembly 12 includes a retaining part 12a as shown in Figures 14, 15 and 19 that is sized and shaped to receive an aerosol generating device 100 that is shown in Figure 1 and in dashed lines in Figures 14 and 15. The aerosol generating device 100 includes an energy storage device 102, e.g., a rechargeable battery, a heating chamber 104 adapted to receive an aerosol generating article 106 such as a stick that looks like an ordinary cigarette and which contains tobacco material, and a heater 108 adapted to heat the aerosol generating article 106 when received in the heating chamber 104. The heating chamber 104 may be provided at an upper end 100a of the aerosol generating device 100. The upper end 100a of the aerosol generating device 100 may also include an opening 110 that allows the aerosol generating article 106 to be received in the heating chamber 104. The aerosol generating device 100 may have a lower end 100b, opposite the upper end 100a. The energy storage device 102 of the aerosol generating device 100 may be provided at the lower end 100b.

[0079] The docking assembly 12 also includes a cover part 12b (or “door”). The front face of the cover part 12b as shown is angled, but it may be flat or curved, for example. As shown, the front of the docking assembly 12 is pivotally mounted at a lower part of the retaining part 12a and a pair of pivot locations 14 are shown in Figures 14 and 15. The pivot locations 14 may comprise a protrusion adapted to engage with a corresponding opening provided on an inner chassis. The docking assembly 12 is adapted to be transitioned between an inserting configuration that is shown in Figure 19, where an upper end of the retaining part 12a extends out of the outer housing 2 so that the user may insert the aerosol generating device 100 into the docking assembly 12, and a retaining configuration that is shown in Figures 1 to 5. In the retaining configuration, the aerosol generating device 100 is retained inside the outer housing 2 and the cover part 12b completely covers the opening 10 of the outer housing 2.

[0080] The charger 1 includes a charging terminal 16 that is shown in Figure 13. The charging terminal 16 is positioned at a lower end of the retaining part 12a, which retaining part has been omitted in Figure 13 for improved clarity. The charging terminal 16 is mechanically and electrically connectable to the aerosol generating device 100 when the aerosol generating device is retained in the docking assembly 12. In particular, the charging terminal 16 is

[0081] P51800WO-6605 mechanically and electrically connected to a complementary charging terminal (not shown) at the lower end 100b of the aerosol generating device 100. A magnetic connection may be used around the respective charging terminals so that a secure connection may be maintained. Alternatively, by employing wireless charging, the mechanical connection between the charging terminal 16 and the aerosol generating device 100 may be omitted.

[0082] The charger 1 includes a wireless charging assembly 18 that includes a first receiving coil 20 for wireless inductive charging. The wireless charging assembly 18 also includes a second receiving coil 22 for wireless inductive charging, but it will be readily understood that in some arrangements the second receiving coil 22 may be omitted.

[0083] The charger 1 includes a printed circuit board assembly (PCBA) 24 shown in Figures 13 to 15 that includes a printed circuit board (PCB) 26 and one or more electronic components (not shown) mounted on the PCB 26. As described in more detail below, the one or more electronic components (not shown) define a power circuit that is adapted to supply power received from the first and second receiving coils 20, 22 to the charging terminal 16.

[0084] The charger 1 includes an internal energy storage device 28, e.g., a rechargeable battery, shown in Figure 12. The energy storage device 28 is adapted to charge the energy storage device 102 of the aerosol generating device 100 when it is retained in the docking assembly 12. In particular the energy storage device 102 of the aerosol generating device 100 may be charged through the charging terminal 16 of the charger 1 that is mechanically and electrically connected to the complementary charging terminal (not shown) of the aerosol generating device 100 when retained in the docking assembly 12. The charging terminal 16 of the charger 1 is electrically connected to the energy storage device 28 so that power from the energy storage device 28 may be supplied to the charging terminal 16 for charging the aerosol generating device 100. The power circuit is also adapted to supply power received from the first and second receiving coils 20, 22 directly to the charging terminal 16 of the charger 1, i.e., so that power from the first and second receiving coils 20, 22 is not supplied to the energy storage device 28, but is instead supplied directly to the charging terminal 16 through the power circuit. The power from the first and second receiving coils 20, 22 may be supplied to the energy storage device 28 and / or directly to the charging terminal 16 as required. Unavoidable losses are normally incurred when the energy storage device 28 of the charger 1 is charged and discharged - i.e., when an electric charge is inputted to the energy storage device 28 and outputted from it. Supplying the generated power from the first and second

[0085] P51800WO-6605 receiving coils 20, 22 directly to the charging terminal 16 of the charger 1 therefore avoids such losses and the overall efficiency of the wireless charging may be increased. A direct supply of power from the first and second receiving coils 20, 22 to the charging terminal 16 of the charger 1 may also be beneficial when the wireless charging assembly receives power from wireless charging and the energy storage device 28 is in a fully-charged state. Such a direct supply of power from the first and second receiving coils 20, 22 to the charging terminal 16 of the charger 1 may be realised by a power-path function implemented in a charging IC for charging the energy storage device 28.

[0086] The energy storage device 28 may also be charged by using a USB charging cable (e.g., a USB-C charging cable) and the charger 1 may include a wired charging assembly (not shown). A charging socket or receptacle (e.g., a USB-C socket) of the wired charging assembly (not shown) may be mounted on a rear surface 26b of the PCB 26. If the charger 1 comprises both wireless and wired charging assemblies, wireless charging may be used only when wired charging is unavailable. This is because the efficiency of wired charging is normally higher than the efficiency of wireless charging. At the moment, the infrastructure for wireless charging may be limited for some users as compared with wired charging. Providing the option for both wireless and wired charging may give the user more opportunities for useful charging depending on the availability of infrastructure.

[0087] The outer housing 2 and the cover part 12b of the docking assembly 12 form part of the exterior of the charger 1. The outer housing 2 may be formed from a suitable plastics material or a metal or metal alloy such as aluminium, for example.

[0088] The first and second receiving coils 20, 22 both comprise a plurality of turns arranged substantially in a common plane. The first and second receiving coils 20, 22 are formed of wire having a suitable outer diameter, and may have any suitable length, width and thickness. The first and second receiving coils 20, 22 may have any suitable nominal operating voltage.

[0089] Referring to Figure 5, the wireless charging assembly 18 includes a substrate 30 that is formed as a ferrite sheet or a sheet of ferrite-containing material. The first receiving coil 20 is mounted on the outer main surface 30a of the substrate 30. The substrate 30 is a shielding member that shields the internal components of the charger 1 from the electromagnetic field that is generated by an inductive transmitting coil of an external wireless charger, for example, during wireless charging. The second receiving coil 22 may also be mounted to a

[0090] P51800WO-6605 substrate in the same way. In Figures 3 and 4, the substrates have been omitted for improved clarity so that only the first and second receiving coils 20, 22 are shown.

[0091] Figure 5 shows how the first receiving coil 20 and the substrate 30 are received in a recess 32 in the outer surface 4a of the first main side 4 of the outer housing 2. Locating the first receiving coil 20 in the recess 32 minimises the distance between the first receiving coil 20 and the transmitting coil of the external wireless charger during wireless charging, for example as compared with positioning the first receiving coil 20 inside the outer housing 2 or mounting it to the inner surface of the first main side 4 of the outer housing 2. Minimising the distance between the first receiving coil 20 and the transmitting coil may improve wireless charging efficiency.

[0092] A heat dissipating layer 34 and a protecting layer 36 are also located in the recess 32 and are positioned between the substrate 30 and the outer surface 4a. The heat dissipating layer 34 helps to dissipate or transfer heat generated by the first receiving coil 20 during wireless charging into the outer housing 2. The heat dissipating layer may be a thermally conductive adhesive tape or an adhesive foil made from a suitable metal or metal alloy such as aluminium, for example. The protecting layer may be a plastics or polymer material, e.g., a layer of polyphenylene sulphide (PPS) material. A high temperature of the first receiving coil 20 may negatively affect the wireless charging efficiency. Providing a heat dissipating layer 34 is beneficial in dissipating or transferring the heat from the first receiving coil 20 to the outer housing 2, thereby cooling the first receiving coil 20.

[0093] Figure 4 shows how the second receiving coil 22 is received in a recess 38 in the outer surface 6a of the second main side 6 of the outer housing 2. The first and second receiving coils 20, 22 are therefore positioned at opposite main sides of the outer housing 2. This allows the charger 1 to provide wireless charging by placing either the first or second main side 4, 6 of the outer housing 2 adjacent the external wireless charger without significantly increasing the complexity of the internal structure of the charger 1. It means that a user of the hand-held charger 1 may not need to pay attention to which of the main sides contacts with the external wireless charger. Although Figure 4 only shows the second receiving coil 22 for clarity, it will be understood that if the second receiving coil 22 is mounted on a substrate, the substrate will also be received in the recess 38, along with a heat dissipating layer and a protecting layer as described above. Locating the second receiving coil 22 in the recess 38 minimises the distance between the second receiving coil 22 and the transmitting coil of the external

[0094] P51800WO-6605 wireless charger during wireless charging, for example as compared with positioning the second receiving coil 22 inside the outer housing 2 or mounting it to the inner surface of the second main side 6 of the outer housing 2. Minimising the distance between the second receiving coil 22 and the transmitting coil may improve wireless charging efficiency.

[0095] Referring to Figures 6 and 7, the first receiving coil 20 and the substrate 30 may be sandwiched between two protecting layers, for example an inner protecting layer 40 and an outer protecting layer 42. The protecting layers 40, 42 are larger than the first receiving coil 20 and the substrate 30 and they are sealed together around their periphery, e.g., by welding or gluing. In one particular example, the protecting layers 40, 42 may be sealed by a vacuum ultrasonic welding process where the edges of the protecting layers 40, 42 are heated under vacuum and sealed together so as to enclose the first receiving coil 20 and the substrate 30 in a protective envelope 44. As shown in Figure 7, the protecting layers 40, 42 may be sealed around a pair of first wires 46 that extend from the first receiving coil 20. The first receiving coil 20 and the substrate 30 are therefore effectively sealed inside the protective envelope 44 to improve ingress protection. A heat dissipating layer 48 may be adhered to the protective envelope 44 - see Figure 8, for example. The second receiving coil 22 and any mounting substrate may be similarly sealed inside a protective envelope 50 in the same way. The protecting layers of the protective envelope 50 may be sealed around a pair of second wires 52 extending from the second receiving coil 22. A heat dissipating layer 48 may be adhered to the protective envelope 50 as shown in Figure 13.

[0096] As shown in Figure 9, a heat dissipating layer 54 may be adhered directly to an inner main surface of the substrate 30 - i.e., to the main surface of the substrate 30 facing towards the outer housing 2. If the second receiving coil 22 is mounted on an outer main surface of a substrate, a heat dissipating layer may be adhered directly to an inner main surface of the substrate in the same way.

[0097] The charger 1 includes a cover or panel 56 that covers the recess 32 in the first main side 4 of the outer housing 2, and a cover or panel 58 that covers the recess 38 in the second main side 6 of the outer housing 2. The cover or panel 56 covers and protects the first receiving coil 20. The cover or panel 58 covers and protects the second receiving coil 22. The covers or panels 56, 58 are a press-fit in the respective recess 32, 38 so that no mechanical fixings are required to fix the covers or panels 56, 58 to the outer housing 2. The covers or panels 56, 58 are preferably made of a suitable non-electrically conductive material that does not interfere with

[0098] P51800WO-6605 wireless charging. For example, the covers or panels 56, 58 may be made of a plastics material.

[0099] The charger 1 includes a first through-hole 60 in the first main side 4 of the outer housing 2. As shown in Figures 3, 5 and 10, the first through-hole 60 is located in the recess 32. The first wires 46 pass through the first through-hole 60 and electrically connect the first receiving coil 20 to the PCB 26 - see Figures 3, 13 and 15, for example. The heat dissipating layer 34 shown in Figure 5 also has an aligned through-hole 62 through which the first wires 46 also pass.

[0100] The first through-hole 60 is positioned closer to the third side 8 than the opening 10. This means that the first wires 46 do not interfere with the docking assembly 12. Providing a direct path for the first wires 46 through the outer housing 2 means that the first wires 46 may also have a shorter length, which may reduce electrical losses. As noted above, the electric current flowing in the first wires 46 is the AC current that is generated by the first receiving coil 20. The electrical losses may therefore include skin effect losses, for example, which may be proportional to the length of the first wires 46. The end of the first wires 46 includes a first connector 64 that is compatible with a first connector 66 mounted to the PCB 26. For example, one of the first connectors may be a male-type connector and the other may be a female-type connector that can be engaged together, i.e., the first connectors 64, 66 are “plugin” connectors.

[0101] The charger 1 includes a cover 68 that covers part of the PCB 26. The cover 68 includes a second through-hole 70. The first wires 46 pass through the second through-hole 70. In practice, the second through-hole 70 allows the first connector 64 at the end of the first wires 46 to engage with the first connector 66 that is mounted on the front face 26a of the PCB 26. The PCB 26 and the cover 68 are clearly shown in Figure 16. Figure 17 shows just the cover 68.

[0102] Figure 18 shows that the first and second through-holes 60, 70 are offset when viewed along a direction that is parallel to a normal of the first main side 4 of the outer housing 2, e.g., when viewed along the transverse axis. Because the first and second through-holes 60, 70 are not directly aligned, it may minimise the passage of dust etc. from outside the outer housing 2 towards the PCBA 24.

[0103] P51800WO-6605 The charger 1 also includes a chassis or rigid support 72. A mechanical fixing (e.g., a screw 74) is used to fix the cover 68 and the PCB 26 to the chassis 72. The screw 74 is received in a third through-hole 76 of the cover 68 - see Figure 17 where the screw 74 has been omitted for clarity. Figure 18 also shows that the third through-hole 76 (and the screw 74, which is not shown) is at least partially aligned or overlapping with the first through-hole 60 when viewed along a direction that is parallel to a normal of the first main side 4 of the outer housing 2, e.g., when viewed along the transverse axis. This may minimise the passage of dust etc. to the PCBA 24 and also provides a convenient way to fix the position of the PCB 26 within the outer housing 2.

[0104] The docking assembly 12 includes a gear mechanism 78 that allows the docking assembly 12 to transition between the retaining and inserting configurations. The gear mechanism 78 is positioned inside the outer housing 2 and is closer to the second main side 6 of the outer housing 2 than the first main side 4 - see Figure 15, for example. This means that the first wires 46 do not interfere with the gear mechanism 78. Providing a direct path for the first wires 46 through the outer housing 2 means that the first wires 46 may have a shorter length, which may reduce electrical losses.

[0105] The gear mechanism 78 is supported on the chassis 72. The first main side 4 of the outer housing 2, the PCB 26, the chassis 72, the gear mechanism 78, and the second main side 6 of the outer housing 2 are arranged in that order along a direction that is parallel to a normal of the first main side - i.e., along the transverse axis. A rear surface 26b of the PCB 26 is supported by the chassis 72. Spacing the PCBA 24 away from the first receiving coil 20 protects the one or more electronic components that are mounted on the PCB 24 from the electromagnetic field generated during wireless charging.

[0106] The second wires 52 are electrically connected between the second receiving coil 22 and the front face 26a of the PCB 26 by detouring the gear mechanism 78. This detouring is shown in Figure 15, for example. The end of the second wires 52 includes a second connector 80 that is compatible with a second connector 82 mounted to the front face 26a of the PCB 26. For example, one of the second connectors may be a male-type connector and the other may be a female-type connector that can be engaged together, i.e., the second connectors 80, 82 are “plug-in” connectors.

[0107] P51800WO-6605 A fourth through-hole 84 is provided in the second main side 6 of the outer housing 2. As shown in Figures 4 and 11, the second through-hole 84 is located in the recess 38. The second wires 52 pass through the second through-hole 84 and electrically connect the second receiving coil 22 to the PCB 26 - see Figures 4, 14 and 15, for example. The gear mechanism 78 is positioned adjacent the third side 8 of the outer housing 2. The fourth through-hole 84 is positioned closer to the opening 10 than the third side 8. This means that the second wires 52 do not interfere with the gear mechanism 78.

[0108] Although exemplary embodiments have been described in the preceding paragraphs, it should be understood that various modifications may be made to those embodiments without departing from the scope of the appended claims. Thus, the breadth and scope of the claims should not be limited to the above-described exemplary embodiments.

[0109] Any combination of the above-described features in all possible variations thereof is encompassed by the present disclosure unless otherwise indicated herein or otherwise clearly contradicted by context.

[0110] Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise”, “comprising”, and the like, are to be construed in an inclusive as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to”.

[0111] P51800WO-6605

Claims

- 23 -Claims1. A hand-held charger (1) adapted to receive an aerosol generating device (100), the charger (1) comprising: an outer housing (2) having a first main side (4), a second main side (6), opposite the first main side (4), and an opening (10) between the first and second main sides (4, 6); a docking assembly (12) adapted to be transitioned between an inserting configuration that allows the aerosol generating device (100) to be inserted into the docking assembly (12), and a retaining configuration that retains the received aerosol generating device (100) in the outer housing (2), wherein the docking assembly (12) includes a cover (12b) that covers the opening (10) when the docking assembly (12) is in the retaining configuration; a charging terminal (16) mechanically and electrically connectable to the aerosol generating device (100) when retained in the docking assembly (12); a wireless charging assembly (18) comprising a first receiving coil (20) for wireless inductive charging that is mounted to the outer housing (2); and a printed circuit board assembly (24) comprising a printed circuit board (26) and one or more electronic components mounted on the printed circuit board (26) and defining a power circuit adapted to supply power received from the first receiving coil (20) to the charging terminal (16).

2. A charger (1) according to claim 1, further comprising an energy storage device (28), wherein the power circuit is adapted to supply power received from the first receiving coil (20) directly to the charging terminal (16).

3. A charger (1) according to claim 1 or claim 2, wherein the outer housing (2) and the cover (12b) form part of the exterior of the charger (1) and the first receiving coil (20) is located at the first main side (4) of the outer housing (2).

4. A charger (1) according to claim 3, wherein the first receiving coil (20) is received in a recess (32) in an outer surface (4a) of the first main side (4) of the outer housing (2).

5. A charger (1) according to claim 4, further comprising a heat dissipating layer (34, 48) positioned between the first receiving coil (20) and the outer surface (4a) of the first main side (4) of the outer housing (2).P51800WO-66056. A charger (1) according to claim 5, further comprising a second cover (56) that covers the recess (32) and which forms part of the exterior of the charger (1).

7. A charger (1) according to any of claims 3 to 6, further comprising: a first through-hole (60) in the first main side (4) of the outer housing (2); and at least one first wire (46) electrically connected between the first receiving coil (20) and the PCBA (24), each first wire (46) passing through the first through-hole (60); wherein the outer housing (2) further comprises a third side (8) opposite the opening (10); and wherein the first through-hole (60) is positioned closer to the third side (8) than the opening (10).

8. A charger (1) according to claim 7, further comprising: a third cover (68) that at least partially covers the PCB (26); and a second through-hole (70) in the third cover (68); wherein each first wire (46) also passes through the second through-hole (70).

9. A charger (1) according to claim 8, wherein the first and second through-holes (60, 70) are offset when viewed along a direction that is parallel to a normal of the first main side (4) of the outer housing (2).

10. A charger (1) according to claim 8 or claim 9, further comprising: a chassis (72); and a mechanical fixing (74) that fixes the third cover (68) and the PCB (26) to the chassis (72), the mechanical fixing (74) being received in a third through-hole (76) in the third cover (68); wherein the mechanical fixing (74) and the first through-hole (60) are at least partially aligned or overlapping when viewed along a direction that is parallel to a normal of the first main side (4) of the outer housing (2).

11. A charger (1) according to any of claims 3 to 6, further comprising: a first through-hole (60) in the first main side (4) of the outer housing (2); and at least one first wire (46) electrically connected between the first receiving coil (20) and the PCBA (24), each first wire (46) passing through the first through-hole (60);P51800WO-6605wherein the docking assembly (12) further comprises a gear mechanism (78) that is positioned closer to the second main side (6) of the outer housing (2) than the first main side (4).

12. A charger (1) according to claim 11, further comprising a chassis (72) that supports the gear mechanism (78); wherein the first main side (4) of the outer housing (2), the PCBA (26), the chassis (72), the gear mechanism (78), and the second main side (6) of the outer housing (2) are arranged in this order along a direction that is parallel to a normal of the first main side (4); and wherein a rear surface (26b) of the PCB (26) is supported by the chassis (72).

13. A charger (1) according to claim 12, further comprising a charging socket or receptacle adapted to receive a charging plug of a charging cable, the charging socket or receptacle being mounted on the rear surface (26b) of the PCB (26).

14. A charger (1) according to claim 12 or claim 13, wherein the wireless charging assembly (18) further comprises: a second receiving coil (22) for wireless inductive charging; and at least one second wire (52) electrically connected between the second receiving coil (22) and a front face (26a) of the PCB (26) by detouring the gear mechanism (78).

15. A charger (1) according to claim 14, further comprising a fourth through-hole (84) in the second main side (6) of the outer housing (2); wherein each second wire (52) is received through the fourth through-hole (84); wherein the outer housing (2) further comprises a third side (8) opposite the opening (10); and wherein the fourth through-hole (84) is positioned closer to the opening (10) than the third side (8).P51800WO-6605

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