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  • 专利说明
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    • 专利摘要:
    electronic steam supply device, nozzle section. it is an electronic vapor supply device (1) comprising a power cell (9, 54), a vaporizer (6, 52) and a liquid storage (7, 51), where the vaporizer comprises an element heater (17, 68) and a heating element holder (20, 67), wherein the liquid storage comprises a porous material.
    公开号:BR112015000968B1
    申请号:R112015000968-9
    申请日:2013-07-15
    公开日:2021-08-03
    发明作者:Christopher Lord
    申请人:Nicoventures Trading Limited；
    IPC主号:
    专利说明:

    FIELD OF TECHNIQUE
    [001] The descriptive report refers to electronic steam supply devices. BACKGROUND
    [002] Electronic vapor delivery devices are typically cigarette size and typically function by allowing a user to inhale nicotine vapor from a liquid storage by applying a suction force to a mouthpiece. Some electronic vapor supply devices have an airflow sensor that activates when a user applies suction force and causes a heater coil to heat up and vaporize the liquid. Electronic vapor supply devices include electronic cigarettes. SUMMARY
    [003] In one embodiment, an electronic vapor supply device is provided comprising a power cell, a vaporizer and a liquid storage, where the vaporizer comprises a heating element and a heating element holder, wherein the liquid storage comprises a porous material. The heating element support can form part of the liquid storage or it can be the liquid storage. Furthermore, the heating element can be supported from its outer side by the heating element support or the heating element can be supported from its inner side by the heating element support.
    [004] One or more gaps may be provided between the heating element and the heating element support.
    [005] In another embodiment, a vaporizer is provided for use in the electronic vapor supply device, comprising a heating element and a porous heating element holder, wherein the heating element holder is a liquid storage .
    [006] In another embodiment, a nozzle is provided, which includes a heating element and a porous heating element holder, wherein the heating element holder is a liquid storage.
    [007] In another embodiment, an electronic vapor provision device is provided that comprises a heating element to vaporize the liquid; an air outlet for liquid vaporized from the heating element; and a porous heating element holder, wherein the heating element holder is a liquid storage. The electronic steam supply device may include a power cell to drive the heating element. BRIEF DESCRIPTION OF THE DRAWINGS
    [008] For a better understanding of the disclosure and to show how the exemplary embodiments can be realized in effect, reference will now be made to the accompanying drawings in: Figure 1 is a side perspective view of an electronic cigarette; Figure 2 is a schematic sectional view of an electronic cigarette having a perpendicular coil; Figure 3 is a side perspective view of a porous heating element holder; Figure 4 is a side perspective view of an element holder Figure 5 is an end view of a porous heating element holder and a coil; Figure 6 is a schematic cross-sectional view of an electronic cigarette having a parallel coil; Figure 7 is a side perspective view of an outer porous heating element holder; Figure 8 is a side perspective view of an outer porous heating element holder and a coil; Figure 9 is an end view of an element holder of external porous heating element and a coil; Figure 10 is an end view of a porous heating element holder with channels and a coil; Figure 11 is an end view of a porous heating element holder. porous heater having an octagonal cross-sectional shape and a coil; Figure 12 is an end view of a porous heater holder having a cross-sectional shape of four arms and a coil; Figure 13 is an end view of an external porous heating element holder and a coil; Figure 14 is an end view of an external porous heating element holder and a coil; and Figure 15 is an end view of a two-part external porous heating element holder and a coil. DETAILED DESCRIPTION
    [009] In one embodiment, an electronic vapor supply device is provided comprising a power cell, a vaporizer and a liquid storage, where the vaporizer comprises a heating element and a heating element holder, wherein the liquid storage comprises a porous material. The electronic vapor supply device may be an electronic cigarette. By having a liquid storage that comprises the porous material, the liquid can be retained more efficiently and also the release and storage of the liquid is more controlled through the capillary absorption action of the porous material.
    [0010] The liquid storage can comprise a solid porous material or a rigid porous material. For example, the liquid storage can comprise a porous ceramic material. A solid porous material is advantageous since it is not open to deformation, so properties can be defined and maintained. The shape can be defined at the manufacturing stage and that specific shape can be retained in the device to provide consistency in device usage.
    [0011] The liquid storage may not comprise an external liquid storage container. Providing a solid porous material does away with the need for an external liquid storage container and therefore provides a more effective storage medium.
    [0012] The porous material can be optimized for liquid retention and capillary absorption and/or for liquid glycerin retention and capillary absorption. Furthermore, the porous material can have substantially equal sized pores. The porous material can comprise pores evenly distributed throughout the material. Furthermore, the porous material can be configured such that most of the bulk material comprises open pores for liquid storage. Liquid storage can be sealed in at least a portion of an outer surface region to inhibit porosity in that region.
    [0013] The porous material may have smaller pores in a region close to the heating element and larger pores further away from the heating element. The porous material can have a pore size gradient ranging from smaller pores near the heating element to larger pores further away from the heating element.
    [0014] The liquid storage can be configured to capillary absorb liquid in the heating element. The pore configuration acts to determine the capillary absorption effect of the storage medium, such that a more efficient means of transmitting liquid to the heating element can be achieved.
    [0015] The heating element holder can form part of the liquid storage, a separate additional liquid storage or the entire liquid storage. By removing the requirement for a separate holder, the number of components is reduced providing a simpler and less expensive device that allows for more liquid storage to be used for the increased capacity.
    [0016] The heating element can be supported from its outside by the heating element support. Alternatively or additionally, the heating element can be supported from its inner side by the heating element support.
    [0017] One or more gaps may be provided between the heating element and the heating element holder. Providing a gap between the heating element and the heating element holder allows liquid to be collected and stored in the region of the gap for vaporization. The gap can also act to capillary absorb liquid in the heating element. Also, providing a gap between the heating element and the support means that a greater surface area of the heating element is exposed, thereby providing a greater surface area for heating and vaporization.
    [0018] The heating element can be a heating coil such as a wire coil. The heating coil can be spiraled so as to be supported along its length by the heating element support. Furthermore, the turns of the heating coil can be supported by the heating element support. For example, the heating coil turns may be in contact with the heating element bracket. One or more gaps can be provided between the heating coil and the heating element bracket. By providing a gap between a coil turn and the holder, liquid can be capillaryly absorbed into the gap and held in the gap for vaporization. In particular, liquid can be absorbed by capillary action through the spaces between the coil turns and into the gap between a coil turn and the support.
    [0019] The vaporizer may further comprise a vaporization cavity such that, in use, the vaporization cavity is a negative pressure cavity. At least part of the heating element can be inserted into the vaporization cavity. By heating the heating element in the vaporization cavity, which successively is a negative pressure cavity when a user inhales through the electronic cigarette, the liquid is directly vaporized and inhaled by the user.
    [0020] The electronic vapor supply device may comprise a nozzle section and the vaporizer may form part of the nozzle section. Furthermore, liquid storage can form part of the nozzle section. For example, liquid storage can substantially fill the nozzle section.
    [0021] Referring to Figure 1, there is shown an embodiment of the electronic vapor provision device 1 in the form of an electronic cigarette 1 comprising a mouthpiece 2 and a body 3. The electronic cigarette 1 is shaped like a conventional cigarette that has a cylindrical shape. The nozzle 2 has an air outlet 4 and the e-cigarette 1 is operated when a user places the nozzle 2 of the e-cigarette 1 in their mouth and inhales, drawing air through the air outlet 4. Both the nozzle 2 and the body 3 are cylindrical and are configured to connect to each other coaxially to form the shape of the conventional cigarette.
    [0022] Figures 2 show an example of the electronic cigarette 1 of Figure 1. The body 3 comprises two detachable parts, comprising a battery mounting part 5 and a vaporizer part 6 and the mouthpiece 2 comprises a liquid storage 7 The electronic cigarette 1 is shown in its assembled state, in which the detachable parts 2, 5, 6 are connected in the following order: nozzle 2, vaporizer 6, battery assembly 5. The liquid is absorbed by capillarity from the storage of liquid 7 to the vaporizer 6. The battery assembly 5 supplies electrical power to the vaporizer 6 through manual electrical contacts of the battery assembly 5 and the vaporizer 6. The vaporizer 6 vaporizes the liquid absorbed by capillary action and the vapor passes through the outlet of air 4. The liquid may, for example, comprise a solution of nicotine.
    [0023] The battery assembly 5 comprises a battery assembly housing 8, a power cell 9, electrical contacts 10 and a control circuit 11.
    [0024] The battery mounting casing 8 comprises a hollow cylinder which is open at a first end 12. For example, the battery mounting casing 8 may be plastic. The electrical contacts 10 are located at the first end 12 of the housing 8 and the power cell 9 and control circuit 11 are located in the hollow part of the housing 8. The power cell 9 can, for example, be a lithium cell.
    [0025] The control circuit 11 includes an air pressure sensor 13 and a controller 14 and is driven by the power cell 9. The controller 14 is configured to interface with the air pressure sensor 13 and to control the supply of electrical power from the power cell 9 to the vaporizer 6.
    [0026] The vaporizer 6 comprises a vaporizer casing 15, electrical contacts 16, a heating element 17, a capillary capillary absorption element 18, a vaporization cavity 19 and a heating element holder 20.
    [0027] The vaporizer casing 15 comprises a hollow cylinder which is open at both ends with an air inlet 21. For example, the vaporizer casing 15 may be formed of an aluminum alloy. The air inlet 21 comprises a hole in the vaporizer casing 15 at a first end 22 of the vaporizer casing 15. The electrical contacts 16 are located at the first end 22 of the vaporizer casing 15.
    [0028] The first end 22 of the vaporizer housing 15 is releasably connected to the first end 12 of the battery assembly housing 8 such that the electrical contacts 16 of the vaporizer are electrically connected to the electrical contacts 10 of the battery assembly . For example, device 1 can be configured such that vaporizer housing 15 connects to battery mounting housing 8 by a threaded connection.
    [0029] The heating element 17 is formed from a single wire and comprises a heating element coil 23 and two conductor cables 24, as illustrated in Figures 4 and 5. For example, the heating element may be formed of Nichrome. Coil 23 comprises a section of wire where the wire is formed in a spiral around a geometric axis A. At either end of coil 23, the wire moves away from its spiral shape to provide the conductor cables 24. The conductor cables 24 are connected to electrical contacts 16 and are thereby configured to be a path for electrical power supplied by power cell 9 to coil 23.
    [0030] The wire in coil 23 is approximately 0.12 mm in diameter. The coil is approximately 25mm long, has an inside diameter of approximately 1mm and a helix pitch of approximately 420 micrometers. The vacuum between successive turns of coil 23 is therefore approximately 300 micrometers.
    [0031] The heating element 17 is located towards the second end 25 of the vaporizer casing 15 and is oriented such that the geometric axis A of the coil 23 is perpendicular to the cylindrical axis B of the vaporizer casing 15. The coil 23 of the heating element 17 is then perpendicular to the longitudinal axis C of the electronic cigarette 1.
    [0032] The capillary absorption element 18 extends from the vaporizer housing 15 to contact with the liquid storage 7 of the nozzle 2. The capillary absorption element 18 is configured to capillary absorb liquid in the W direction from from the liquid storage 7 of the nozzle 2 to the heating element 17. In more detail, the wick 18 comprises an arc of porous material extending from a first end of the coil 23, outwards, beyond the second end 25 from the vaporizer casing 14 and back to a second end of the coil. For example, the porous material may be nickel foam, where the porosity of the foam is such that the described capillary absorption occurs.
    [0033] The vaporization cavity 19 comprises a region in the hollow part of the vaporizer casing 15 in which the liquid is vaporized. The heating element 17, the heating element holder 20 and the parts 26 of the wicking element 18 are located in the vaporization cavity 19.
    [0034] The heating element support 20 is configured to support the heating element 17 and to facilitate the vaporization of liquid by the heating element 17. The heating element support 20 is an internal support and is illustrated in Figures 3, 4 and 5. Support 20 comprises a rigid cylinder of porous ceramic material. For example, porous ceramic material is shown to have pores 20a distributed throughout the material. Support 20 is located coaxially on the spiral of heating element coil 23 and is slightly longer than coil 23 such that the ends of support 20 protrude from the ends of coil 23. The diameter of cylindrical support 20 is similar to the inner diameter of the spiral. As a result, the wire of the coil 23 is substantially in contact with the support 20 and is thereby supported, facilitating the maintenance of the shape of the coil 23. The heating element coil 23 is then spiraled or wound around. of heating element bracket 20. The solidity provides a stable and secure structure to hold coil 23 in place. The combination of support 20 and coil 23 of heating element 17 provides a heating rod 27 as illustrated in Figures 4 and 5. The heating rod is described in more detail later with reference to Figures 4 and 5.
    [0035] The surface 28 of the support 20 provides a route for the liquid from the capillary absorption element 18 to be capillaryly absorbed in and along it, enhancing the liquid provision to the surroundings of the heating element 17 to the vaporization. The surface 28 of the support 20 also provides the surface area for exposing the capillary-absorbed liquid to the heat of the heating element 17. The porosity of the support allows the liquid to be stored in the heating element support 20. The support is then , an additional liquid storage.
    [0036] The nozzle 2 comprises a nozzle housing 29. The nozzle housing 29 comprises a hollow cylinder which is open at a first end 30, with the air outlet 4 comprising a hole in the second end 31 of the housing. For example, the nozzle housing can be formed from plastic.
    [0037] The liquid storage 7 is situated in the hollow part of the nozzle housing 29. For example, the liquid storage may comprise foam, wherein the foam is substantially situated in the liquid intended for vaporization. The cross-sectional area of the liquid storage 7 is smaller than that of the hollow part of the nozzle housing so as to form an air passage 32 between the first end 30 of the nozzle housing 2 and the air outlet 4.
    [0038] The first end 30 of the nozzle housing 29 is releasably connected to the second end 25 of the vaporizer housing 15, such that the liquid storage 7 is in contact with a portion 33 of the capillary absorption element 18 which is projects from vaporizer 6.
    [0039] The liquid from the liquid storage 7 is absorbed by the capillary absorption element 18 and is capillaryly absorbed along route W through the entire capillary absorption element 18. The liquid then is capillaryly absorbed from of the capillary absorption element 18 in and along the coil 23, of the heating element 17 and in the support 20 and therealong.
    [0040] There is a continuous internal cavity 34 in the electronic cigarette 1 formed by the adjacent hollow interiors of the nozzle housing 29, the vaporizer housing 15 and the battery mounting housing 8.
    [0041] In use, a user sucks on the second end 31 of the mouthpiece 2. This causes a drop in air pressure throughout the internal cavity 34 of the electronic cigarette 1, particularly at the air outlet 4.
    [0042] The pressure drop in the internal cavity 34 is detected by the pressure sensor 13. In response to the detection of the pressure drop by the pressure sensor, the controller 14 triggers the power supply to the power cell 9 to the power element. heating 17 via electrical contacts 10, 16. The coil of heating element 17 therefore heats up. Once the coil 17 heats up, the liquid in the vaporizing cavity 19 is vaporized. In more detail, the liquid in the heating element 17 is vaporized, the liquid in the heating element holder 20 is vaporized, and the liquid in the portions 26 of the wicking element 18 that are in the immediate vicinity of the heating element 17 can be vaporized.
    [0043] The pressure drop in the internal cavity 34 also causes air from the outside of the electronic cigarette 1 to be drawn, along route F, through the internal cavity from the air inlet 21 to the outlet of air 4. As air is drawn along route F, it passes through the vaporization cavity 19 and the air passage 32. The vaporized liquid is therefore driven by the movement of air along the air passage 32 and out of the air outlet 4 to be inhaled by the user. In passing through the vaporization cavity, along route F, air moves through the heating element 17 in a direction substantially perpendicular to the geometric axis A of the coil 23.
    [0044] As the air containing the vaporized liquid is led to the air outlet 4, some part of the vapor may condense, producing a fine suspension of liquid droplets in the air flow. Furthermore, the movement of air through the vaporizer 6, as the user sucks at the mouthpiece 2, can release the fine liquid droplets from the capillary absorption element 18, the heating element 17 and/or the element holder heating 20. The air passage out of the outlet can therefore comprise an aerosol of fine liquid droplets as well as vaporized liquid.
    [0045] The pressure drop in the vaporization cavity 19 also encourages additional capillary absorption of liquid from the liquid storage 7 along the capillary absorption element 18 to the vaporization cavity 19.
    [0046] Figure 6 shows a further example of the electronic cigarette 1 of Figure 1. The body 3 is referred to herein as a battery assembly 50 and the mouthpiece 2 includes a liquid storage 51 and a vaporizer 52. electronic cigarette 1 is shown in its assembled state, in which the detachable parts 2, 3 are connected. The liquid is capillaryly absorbed from the liquid storage 51 to the vaporizer 52. The battery assembly 50 supplies electrical power to the vaporizer 52 through mutual electrical contacts of the battery assembly 50 and the nozzle 2. The vaporizer 52 vaporizes the liquid is absorbed by capillary action and the vapor passes out of the air outlet 4. The liquid may, for example, comprise a nicotine solution.
    [0047] The battery assembly 50 comprises a battery assembly housing 53, a power cell 54, electrical contacts 55 and a control circuit 56.
    [0048] The battery mounting casing 53 comprises a hollow cylinder which is open at a first end 57. For example, the battery mounting casing 53 may be plastic. The electrical contacts 55 are located at the first end 57 of the housing 53 and the power cell 54 and control circuit 56 are located in the hollow part of the housing 53. The power cell 54 may, for example, be a Lithium Cell.
    [0049] The control circuit 56 includes an air pressure sensor 58 and a controller 59 and is driven by the power cell 54. The controller 59 is configured to interface with the air pressure sensor 58 and to control the supply of electrical power from the power cell 54 to the vaporizer 52, via the electrical contacts 55.
    The nozzle 2 additionally includes a nozzle housing 60 and electrical contacts 61. The nozzle housing 60 comprises a hollow cylinder which is open at a first end 62, the air outlet 4 comprising a hole in the second end 63 of housing 60. Nozzle housing 60 also comprises an air inlet 64, which comprises a hole proximate first end 62 of housing 60. For example, nozzle housing may be formed of aluminum.
    [0051] The electrical contacts 61 are located at the first end of the housing 60. Furthermore, the first end 62 of the nozzle housing 60 is releasably connected to the first end 57 of the battery mounting housing 53 such that the electrical contacts 61 of the nozzle 2 are electrically connected to the electrical contacts 55 of the battery assembly 50. For example, the device 1 can be configured such that the nozzle housing 60 connects to the battery assembly housing 53 by a connection threaded.
    [0052] The liquid storage 51 is situated in the hollow nozzle housing 60 towards the second end 63 of the housing 60. The liquid storage 51 comprises a cylindrical tube of porous material saturated in liquid. The outer circumference of the liquid storage 51 is compatible with the inner circumference of the nozzle housing 60. The hollow portion of the liquid storage 51 provides an air passage 65. For example, the porous material of the liquid storage 51 may comprise foam, wherein the foam is substantially saturated in the liquid intended for vaporization.
    [0053] The vaporizer 52 comprises a vaporization cavity 66, a heating element holder 67 and a heating element 68.
    [0054] The vaporization cavity 66 comprises a region in the hollow part of the nozzle housing 60 in which the liquid is vaporized. Heating element 68 and a portion 69 of support 67 are located in vaporization cavity 66.
    [0055] The heating element support 67 is configured to support the heating element 68 from the outside and to facilitate the vaporization of the liquid by the heating element 68 and is illustrated in Figures 7 to 9. the support 67 is located outside the heating element 68, its size is not restricted by the size of the heating element, and so can be much larger than those of the embodiments described above. This facilitates the storage of more liquid by the porous heating element support 67 than those of the embodiments described above. The holder 67 comprises a hollow cylinder of porous and rigid material and is situated in the nozzle housing 60, towards the first end 62 of the housing 60, such that it supports the liquid storage 51. The porous material has pores 67a distributed across everywhere. The outer circumference of the holder 67 is compatible with the inner circumference of the nozzle housing 60. The hollow portion of the holder comprises a central and longitudinal channel 70 across the length of the holder 67. The channel 70 has a square cross-sectional shape, wherein the cross section is perpendicular to the longitudinal axis of the support.
    [0056] The support 67 acts as a capillary absorption element, as it is configured to capillary absorb liquid in the W direction from the liquid storage 51 of the nozzle 2 to the heating element 68. For example, the material The porous portion of the support 67 may be nickel foam, where the porosity of the foam is such that the described capillary absorption occurs. Since the liquid is absorbed by capillary action W from the liquid storage 51 to the support 67, it is stored in the porous material of the support 67. Therefore, the support 67 is an extension of the liquid storage 51.
    [0057] The heating element 68 is formed of a single wire and comprises a heating element coil 71 and two conductor cables 72, as shown in Figures 8 and 9. For example, the heating element 68 may be formed of Nichrome. Coil 71 comprises a section of wire in which the wire is formed in a spiral around a geometric axis A. At either end of the coil 71, the wire moves away from its spiral shape to provide the conductor cables 72. The cables conductors 72 are connected to electrical contacts 61 and are thereby configured to route electrical power, supplied by power cell 54, to coil 71.
    [0058] The wire of coil 71 is approximately 0.12 mm in diameter. The coil is approximately 25mm long, has an internal diameter of approximately 1mm and a spiral heave of approximately 420 micrometers. The vacuum between successive turns of coil 71 is therefore approximately 300 micrometers.
    [0059] The coil 71 of the heating element 68 is located coaxially in the channel 70 of the support. The heating element coil 71 is then wound in the channel 70 of the heating element holder 67. Furthermore, the geometry axis A of the coil 71 is then parallel to the cylindrical axis B of the nozzle housing 60 and to the longitudinal geometric axis C of the electronic cigarette 1.
    [0060] Coil 71 has the same length as support 67, such that the ends of coil 71 are flush with the ends of support 67. The outer diameter of the spiral of coil 71 is similar to the cross-sectional width of the channel 70. As a result, the wire of the coil 71 is in contact with the surface 73 of the channel 70 and is thereby supported, facilitating the maintenance of the shape of the coil 71. Each turn of the coil is in contact with the surface 73 of the channel 70 at a contact point 75 on each of the four walls 73 of channel 70. The combination of coil 71 and bracket 67 provides a heating rod 74 as illustrated in Figures 8 and 9. The heating rod 74 is described further later in more detail with reference to Figures 8 and 9.
    [0061] The inner surface 73 of the support 67 provides a surface for the liquid to be capillaryly absorbed in the coil 71 at points 75 of contact between the walls of the coil 71 and channel 70. The inner surface 73 of the support 67 also provides the area to expose the capillary-absorbed liquid to the heat of the heating element 68.
    [0062] There is a continuous internal cavity 76 in the electronic cigarette 1 formed by the adjacent hollow interiors of the mouthpiece casing 60 and the battery mounting casing 53.
    [0063] In use, a user sucks on the second end 63 of the mouthpiece casing 60. This causes a drop in air pressure throughout the internal cavity 76 of the e-cigarette 1, particularly at the air outlet 4.
    [0064] The pressure drop in the internal cavity 76 is detected by the pressure sensor 58. In response to the detection of the pressure drop by the pressure sensor 58, the controller 59 triggers the power supply from the power cell 54 to the heating element 68 via electrical contacts 55, 26. The coil of heating element 68 therefore heats up. Once the coil 17 heats up, the liquid in the vaporization cavity 66 is vaporized. In more detail, the liquid in the coil 71 is vaporized, the liquid on the inner surface 73 of the heating element support 67 is vaporized, and the liquid in the portions 22 of the support 67 that are in the immediate vicinity of the heating element 68 can be vaporized.
    [0065] The pressure drop in the inner cavity 76 also causes air outside the electronic cigarette 1 to be drawn, along route F, through the inner cavity from the air inlet 64 to the air outlet 4. As air is drawn along route F, it passes through the vaporization cavity 66, collecting the vaporized liquid and the air passage 65. The vaporized liquid is therefore led along the air passage. 65 and out of the air outlet 4 to be inhaled by the user. On passage through the vaporization cavity, along route F, air moves over the heating element 68 in a direction substantially parallel to the geometric axis A of the coil 71.
    [0066] As the air containing the vaporized liquid is led to the air outlet 4, some amount of vapor may condense, producing a fine suspension of liquid droplets in the air stream. Furthermore, the movement of air through the vaporizer 52 as the user sucks at the nozzle 2 can release fine droplets of liquid from the heating element 68 and/or the heating element holder 67. The air outlet 4 can therefore comprise an aerosol of fine liquid droplets as well as vaporized liquid.
    [0067] With reference to Figures 8 and 9, due to the cross-sectional shape of the channel, gaps 80 are formed between the inner surface 73 of the heating element support 67 and the coil 71. In more detail, where the wire from coil 71 passes between the contact points 75, a gap 80 is provided between the wire and the area of the inner surface 73 closest to the wire due to the wire substantially maintaining its spiral shape. The distance between the wire and the surface 73 at each gap 80 is in the range of 10 micrometers to 500 micrometers. Gaps 80 are configured to facilitate capillary absorption of liquid in coil 71 through capillary action on gaps 80. Gaps 80 also provide areas where liquid can accumulate prior to vaporization and thereby provide areas for liquid be stored prior to vaporization. Gaps 80 also expose more of coil 71 to increased vaporization in these areas.
    [0068] Many alternatives and variations of the modalities described above are possible. For example, the alternatives and variations of the embodiments of Figures 2 to 5 are as follows.
    [0069] Figures 10 to 12 show other examples of porous heating element supports 20 with a coil 23 wound around. These differ from the example shown in Figures 2 to 5 and differ from each other in the shape of the heating element support 20. In each of the examples in Figures 10 through 12, gaps 80 are provided between the heating element 17 and the support 20 due to the cross-sectional shape of the support. In more detail, where the coil wire 23 passes over a depression in surface 28, a gap 80 is provided between the wire and the surface area 28 immediately under the wire due to the wire substantially maintaining its spiral shape. . The gaps 80 are therefore disposed in a radial direction from the geometric axis A of the coil, between the surface 28 of the support 20 and the wire of the coil 23. The distance between the wire and the surface 28 in each gap 80 is at range from 10 micrometers to 500 micrometers. The gaps 80 are configured to facilitate capillary absorption of liquid along and along the support 20 through capillary action in the gaps 80. As with the heating rods of Figures 8 and 9, the gaps 80 are also facilitate capillary absorption of liquid in the heating element 17 from the porous support 20 through capillary action in the gaps 80. The gaps 80 also provide areas where liquid can accumulate on the surface 28 of the support 20 prior to vaporization and, thus, it provides areas for the liquid to be stored prior to vaporization. Gaps 80 also expose more of coil 23 to increased vaporization in these areas.
    [0070] Figure 10 shows a heating element support 20 that is generally cylindrical in shape, but has four surface channels 81 that run in the length direction and are equally spaced around the support 20. The coil 23 is wound around the around the support 20 and gaps 80 are provided where the coil turns overlap the channels 81. In more detail, where the coil wire 23 passes over a channel 81, a gap 80 is provided between the wire and the surface area 28 immediately under the wire.
    [0071] The heating element holder 20 is porous and stores liquid. The gaps 80 provided by channels 81 have two functions. First, they provide a means for the liquid to be capillaryly absorbed in both the coil 23 and the heating element holder 20 through capillary action. Second, they expose the surface of the coil 23 in the area of the channels 81, thereby increasing the surface of vaporization of the coil 23.
    [0072] In Figure 11, the heating element support 20 has an octagonal outer cross-sectional shape, perpendicular to the length direction. Coil 23 is wound around this support. Due to the fact that the wire in coil 23 has some stiffness, the shape of the wire is not compatible with the exact external shape of the support, but it tends to be curved. Thus, gaps 80 are provided between the octagonal outer surface of the heating element holder 20 and the curved coil 23.
    [0073] Again, the heating element holder 20 is porous for liquid storage and the gaps 80 provide a means of capillary absorption of liquid in the coil 23 and expose a larger surface of the coil 23 for increased vaporization.
    [0074] In Figure 12, the heating element support 20 has an external cross-sectional shape equal to a cross with four arms. Coil 23 is wound around support 20 and gaps 80 are provided between the respective arms and the surface of coil 23. These gaps 80 provide the same advantages already described.
    [0075] Furthermore, where channels 81 are provided in the heating element holder 20, an amount in addition to one or four channels 81 can be used.
    [0076] Furthermore, the channels 81 have been described as longitudinal grooves along the surface 28 of the cylindrical supports 20. However, the channels 81 may, for example, alternatively or additionally comprise helical grooves in the surface 28 of a cylindrical support 20, which spiral around the geometric axis of the support. Alternatively or additionally, channels 81 may comprise circumferential rings around surface 28 of support 20.
    [0077] In the embodiments, the inner support 20 is described as being slightly longer than the coil 23, such that it protrudes from either end of the coil 23. Alternatively, the support 20 may be shorter in length than the coil 23. that coil 23 and can therefore reside entirely within the confines of the coil.
    [0078] Furthermore, the alternatives and exemplary variations of the modalities of Figures 6 to 9 are as follows. Figures 13 to 15 show other examples of external porous heating element holders 67 with an inner coil 71. These differ from the example shown in Figures 7 and 9 and from each other by the shape of the heating element holder 67.
    [0079] Figure 13 shows a device similar to that shown in Figure 9, with the exception that the inner channel 70 has a circular cross-sectional shape rather than a square. This provides an arrangement where a coil 71 is fitted to the inner channel 70 and is in contact with the surface of the channel 70 along the length of the channel 70 substantially without gaps in the contact areas. This extra contact provides an increased means for liquid to be capillaryly absorbed in coil 71 and an overall decrease in the vaporization area of coil 71.
    [0080] In Figure 14, a device is shown similar to that shown in Figure 9. In this example, the outer cross-sectional shape of the heating element holder 67 is a square rather than a circle.
    [0081] Figure 15 shows a heating element support 67 comprising a first support section 85 and a second support section 86. The heating element support 67 is generally cylindrical in shape and the first support section 85 and the second support section 86 are cylinder halves with generally semi-circular cross-sections, which are joined to form the cylindrical shape of the heating element support 67.
    [0082] The first support section 85 and the second support section 86 each have a side channel 87 or groove 87, which runs along their respective lengths, along the middle of their otherwise longitudinal surfaces. , flat. When the first support section 85 is joined to the second support section 86 to form the heating element support 67, their respective side channels 87 together form the inner channel 70 of the heating element support 67.
    [0083] In this example, the combined side channels 87 form an inner channel 70 that has a square cross-sectional shape. Thus, the side channels 87 are each rectangular in cross-section. Coil 71 is located in inner channel 70 of heating element holder 67. Having a heating element holder 67 comprising two separate parts 85, 86 facilitates fabrication of that component. During fabrication, the coil 71 can be fitted into the side channel 87 of the first support section 85 and the second support section 86 can be placed on top to form the complete heating element support 67.
    [0084] Internal support channels 70 with cross-sectional shapes, in addition to those described, could be used.
    [0085] Furthermore, the coil 71 may be shorter in length than the outer support 67 and can therefore reside entirely within the limits of the support. Alternatively, coil 71 may be longer than outer support 67.
    [0086] In embodiments, support 67 may be located partially or entirely in liquid storage 51. For example, support 67 may be located coaxially in liquid storage tube 51.
    [0087] Furthermore, the alternatives and exemplary variations of the modalities described above are as follows.
    [0088] An electronic vapor supply device comprising an electronic cigarette 1 is described herein. However, other types of electronic vapor supply device are possible.
    [0089] Coil wire 23, 71 is described above as being approximately 0.12 mm thick. However, other wire diameters are possible. For example, the coil wire diameter can be in the range of 0.05mm to 0.2mm. Furthermore, the length of the coil 23, 71 may be different from that described above. For example, the length of the coil 23, 71 can be in the range of 20mm to 40mm.
    [0090] The internal diameter of the coil 23, 71 may be different from that described above. For example, the inner diameter of coil 23, 71 can be in the range of 0.5mm to 2mm.
    [0091] The pitch of the spiral coil 23, 71 may be different from that described above. For example, the pitch can be between 120 micrometers and 600 micrometers.
    [0092] Furthermore, even though the distance of vacuums between turns of the coil 23, 71 is described above as being approximately 300, different vacuum distances are possible. For example, the vacuum can be between 20 micrometers and 500 micrometers.
    [0093] The size of gaps 80 may be different from that described above.
    [0094] Furthermore, the electronic vapor provision device 1 is not restricted to the sequence of components described and other sequences could be used as the control circuit 11, 56 which is at the tip of the device or the liquid storage 7, 51 which is in the body 3 of the electronic steam supply device 1 instead of in the nozzle 2.
    [0095] The electronic steam supply device 1 of Figure 2 is described as comprising three detachable parts, the nozzle 2, the vaporizer 6 and the battery assembly 5. Alternatively, the electronic steam supply device 1 can be configured such as that these parts 2, 6, 5 are combined into a single integrated unit. In other words, the nozzle 2, vaporizer 6 and battery assembly 5 may not be detachable. As a further alternative, the nozzle 2 and the vaporizer 6 can comprise a single integrated unit or the vaporizer 6 and the battery assembly 5 can comprise a single integrated unit.
    [0096] The electronic vapor supply device 1 of Figure 6 is described as comprising two detachable parts, the mouthpiece 2 and the body comprising the battery assembly 50. Alternatively, the device 1 can be configured such that these parts 2, 50 are combined into a single integrated unit. In other words, mouthpiece 2 and body 3 may not be detachable.
    [0097] The heating element 17, 68 is not restricted to being a coil 23, 71 and may otherwise have wire as a zigzag shape.
    [0098] An air pressure sensor 13, 58 is described herein. In modalities, an airflow sensor can be used to detect that a user is sucking on the device.
    [0099] The heating element 17, 68 is not restricted to being a uniform coil.
    [00100] The porous material of the heating element holder 20, 67 can be optimized for the retention and capillary absorption of certain liquids. For example, the porous material can be optimized for the capillary retention and absorption of a nicotine solution. For example, the nicotine solution can be liquid containing nicotine diluted in a solution of propylene glycol.
    [00101] The heating element support 20, 67 is not limited to being a porous ceramic and other solid porous materials could be used as porous plastic materials or solid foams.
    [00102] Reference in this document to a vaporization cavity 19, 66 may be replaced by reference to a vaporization region.
    [00103] Although the examples have been shown and described, it will be noted by those skilled in the art that various changes and modifications can be made without departing from the scope of the invention.
    [00104] In order to address various questions and advance the technique, the entirety of this disclosure shows, by way of illustration, various modalities in which the claimed invention(s) can be practiced and provide the provision of steam superior electronic. The benefits and features of development are from a representative sample of modalities only and are not exhaustive and/or exclusive. They are presented only to aid in the understanding and teaching of the claimed resources. It should be understood that the advantages, modalities, examples, functions, features, structures and/or other aspects of disclosure are not to be considered limitations on disclosure as defined by the claims or limitations on claims equivalents and what other modalities can be used and modifications can be made without departing from the scope and/or spirit of the disclosure. Various modalities may suitably comprise, consist or essentially consist of various combinations of elements, components, resources, parts, steps, means, etc. revealed. Furthermore, the disclosure includes other inventions not presently claimed but which may be claimed in the future. Any feature of any modality can be used, independently or in combination with any other feature.
    权利要求:
    Claims (29)
    [0001]
    1. Electronic vapor supply device (1), characterized in that it comprises a power cell (9), a vaporizer (6) and a liquid storage (7), where the vaporizer (6) comprises a heating element (17) and a heating element support (20), the liquid storage (7) comprising a porous material, and the heating element support (20) being or forming part of the liquid storage (7 ).
    [0002]
    2. Electronic vapor supply device (1) according to claim 1, characterized in that the electronic vapor supply device (1) is an electronic cigarette.
    [0003]
    3. Electronic vapor provision device (1), according to claim 1 or 2, characterized in that the liquid storage (7) comprises a rigid porous material.
    [0004]
    4. Electronic vapor provision device (1) according to any one of claims 1 to 3, characterized in that the liquid storage (7) comprises a porous ceramic material.
    [0005]
    5. Electronic steam supply device (1), according to any one of claims 1 to 4, characterized in that the porous material is optimized for liquid retention and capillary absorption.
    [0006]
    6. Electronic steam supply device (1), according to claim 5, characterized in that the porous material is optimized for liquid glycerin retention and capillary absorption.
    [0007]
    7. Electronic steam supply device (1), according to any one of claims 1 to 6, characterized in that the porous material comprises pores of substantially equal sizes.
    [0008]
    8. Electronic steam supply device (1), according to any one of claims 1 to 7, characterized in that the porous material comprises pores evenly distributed throughout the material.
    [0009]
    9. Electronic steam supply device (1), according to any one of claims 1 to 7, characterized in that the porous material is configured in such a way that the majority of the material volume comprises open pores for the storage of liquid.
    [0010]
    10. Electronic vapor supply device (1) according to any one of claims 1 to 9, characterized in that the liquid storage (7) is sealed in at least part of an outer surface region to inhibit the porosity in this region.
    [0011]
    11. Electronic steam supply device (1), according to any one of claims 1 to 10, characterized in that the porous material comprises smaller pores in the region close to the heating element (17) and larger pores beyond the heating element (17).
    [0012]
    12. Electronic steam provision device (1) according to any one of claims 1 to 11, characterized in that the porous material comprises a gradient of pore sizes ranging from smaller pores close to the heating element (17 ) to larger pores beyond the heating element (17).
    [0013]
    13. Electronic vapor provision device (1) according to any one of claims 1 to 12, characterized in that the liquid storage (7) is configured, in use, to absorb the liquid into the element by capillarity heater (17).
    [0014]
    14. Electronic steam supply device (1), according to any one of claims 1 to 13, characterized in that the heating element (17) is supported, from its external side, by the support element of heating (20).
    [0015]
    15. Electronic steam supply device (1), according to any one of claims 1 to 13, characterized in that the heating element (17) is supported, from its inner side, by the support element of heating (20).
    [0016]
    16. Electronic steam supply device (1) according to any one of claims 1 to 15, characterized in that one or more gaps are provided between the heating element (17) and the heating element support ( 20).
    [0017]
    17. Electronic steam supply device (1) according to any one of claims 1 to 16, characterized in that the heating element (17) is a heating coil.
    [0018]
    18. Electronic steam supply device (1), according to claim 17, characterized in that the heating coil is a wire coil.
    [0019]
    19. Electronic steam supply device (1) according to claim 17 or 18, characterized in that the heating coil is wound so as to be supported along its length by the heating element support (20 ).
    [0020]
    20. Electronic steam supply device (1) according to any one of claims 17 to 19, characterized in that the turns of the heating coil are in contact with the heating element support (20) and are, thereby supported by the heating element support (20).
    [0021]
    21. Electronic steam supply device (1) according to any one of claims 17 to 20, characterized in that one or more gaps are provided between the heating coil and the heating element support (20).
    [0022]
    22. Electronic steam supply device (1), according to claim 21, characterized in that the one or more gaps are between the turns of the coil and the heating element support (20).
    [0023]
    23. Electronic vapor supply device (1) according to any one of claims 1 to 22, characterized in that the vaporizer (6) additionally comprises a vaporization cavity such that, in use, the vaporizer cavity vaporization is a negative pressure cavity.
    [0024]
    24. Electronic steam supply device (1), according to claim 23, characterized in that at least part of the heating element (17) is inside the vaporization cavity.
    [0025]
    25. Electronic steam supply device (1) according to any one of claims 1 to 24, characterized in that the electronic steam supply device (1) comprises a nozzle section and the vaporizer (6) forms part of the nozzle section.
    [0026]
    26. Electronic vapor supply device (1), according to claim 25, characterized in that the liquid storage (7) forms part of the nozzle section.
    [0027]
    27. Electronic vapor provision device (1) according to claim 26, characterized in that the liquid storage (7) substantially fills the nozzle section.
    [0028]
    28. Electronic steam supply device (1), according to any one of claims 1 to 27, characterized in that it additionally comprises an air outlet for the vaporized liquid from the heating element (17).
    [0029]
    29. Nozzle section for an electronic vapor supply device (1) as defined in any one of claims 1 to 28, characterized in that the nozzle section includes a vaporizer (6) and a liquid storage (7 ), the vaporizer (6) comprising a heating element (17) and a heating element support (20), the liquid storage (7) comprising a porous material, and the heating element support ( 20) is or forms part of the liquid storage (7).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112015000968B1|2021-08-03|ELECTRONIC STEAM SUPPLY DEVICE, NOZZLE SECTION.
    AU2016204511B2|2018-04-26|Electronic vapour provision device
    JP6749290B2|2020-09-02|Electronic vapor supply device
    CA2878977C|2018-05-15|Electronic smoking device
    BR122021008363B1|2021-11-16|ELECTRONIC STEAM AND VAPORIZER SUPPLY DEVICE
    同族专利:
    公开号 | 公开日
    ES2604472T3|2017-03-07|
    WO2014012906A1|2014-01-23|
    GB201212606D0|2012-08-29|
    UA110897C2|2016-02-25|
    US10588354B2|2020-03-17|
    KR20150030733A|2015-03-20|
    EP3106047A1|2016-12-21|
    GB2504076A|2014-01-22|
    JP2019047802A|2019-03-28|
    BR112015000968A2|2018-05-22|
    JP2015524258A|2015-08-24|
    KR20190000923A|2019-01-03|
    CN104684422A|2015-06-03|
    CA2878973C|2019-05-21|
    CN109123808A|2019-01-04|
    US20150208728A1|2015-07-30|
    EP2871984B1|2016-09-07|
    AU2013292106B2|2016-03-03|
    JP2017113001A|2017-06-29|
    KR102246202B1|2021-04-28|
    MY188077A|2021-11-16|
    HK1231334A1|2017-12-22|
    HK1204236A1|2015-11-13|
    US9943108B2|2018-04-17|
    AU2013292106A1|2015-02-05|
    EP2871984A1|2015-05-20|
    RU2596108C1|2016-08-27|
    PL2871984T3|2017-10-31|
    EP3446580A1|2019-02-27|
    US20180192705A1|2018-07-12|
    CA2878973A1|2014-01-23|
    US20200178604A1|2020-06-11|
    KR20210046873A|2021-04-28|
    KR20170133523A|2017-12-05|
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    法律状态:
    2018-07-03| B25G| Requested change of headquarter approved|Owner name: NICOVENTURES HOLDINGS LIMITED (GB) |
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-12-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-08-04| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-04-20| B25A| Requested transfer of rights approved|Owner name: NICOVENTURES TRADING LIMITED (GB) |
    2021-06-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/07/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    GB1212606.6A|GB2504076A|2012-07-16|2012-07-16|Electronic smoking device|
    GB1212606.6|2012-07-16|
    PCT/EP2013/064952|WO2014012906A1|2012-07-16|2013-07-15|Electronic vapour provision device|
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