Electrical heater for use in an electrical smoking article with tobacco flavor and process for producing such an electrical heater

    公开(公告)号:CZ294965B6

    公开(公告)日:2005-04-13

    申请号:CZ306095

    申请日:1995-04-06

    Abstract: In the present invention, there is disclosed an electrical heater for use in a smoking article having a source of electrical energy for heating tobacco flavor medium, the heater comprising: a) a substrate layer (300) of electrically conducting material; b) an electrically insulating layer (310) deposited on at least a portion of said substrate layer (300); and c) an electrically resistive heater element (122) deposited on said electrically insulating layer (310). A first end of said heater element (122) is electrically connected to said electrically conducting substrate (300), wherein a second end of said heater element (122) and a portion of said heater element (122) between the first and second ends of said heater element (122) are electrically insulated from said electrically conducting substrate layer (300) by said electrically insulating layer (310). Said substrate layer (300) and said second end of said heater element (122) are adapted to be electrically connected to the source (37) of electrical energy to heat said heating element (122). A process for producing the above-described electrical heater comprises the following steps: 1) providing an electrically conducting material; 2) forming (a) a plurality of blades from the electrically conducting material having gaps therebetween, and (b) a common end section, the blades extending from the common end section; 3) forming an electrical insulating layer (310) on at least one of the plurality of electrically conducting blades; 4) forming an electrically resistive heater on the formed electrical insulating layer (310) in such a manner that a first end of the heater is in electrical contact with the at least one electrically conducting blade; 5) forming an electrical contact on a second end of the formed heater; and 6) placing the plurality of blades and the common end section into a cylindrical receptacle to receive an inserted cigarette (23).

    TUBULAR HEATER USED IN ELECTRICAL SMOKER°S ARTICLE

    公开(公告)号:CZ306095A3

    公开(公告)日:1996-07-17

    申请号:CZ306095

    申请日:1995-04-06

    Abstract: A cylindrical tube is provided of a mechanically strong and flexible electrical conductor such as a metal and has a plurality of separated regions. An electrically insulating layer such as a ceramic is applied on the outer surface except for one exposed portion. Electrically resistive heaters are then applied to the insulated regions and are electrically connected at one end to the underlying electrical conducting region. The electrical conductor is connected to the negative terminal of a power source. The other end of all the heaters are adapted to be connected to the positive terminal of the source. Accordingly, an electrically resistive heating circuit is formed wherein the tube serves as a common for all of the heating elements. The tubular heater can comprise an exposed end hub with a plurality of blades extending therefrom. Each blade can have an individual heater deposited thereon. Alternatively, every other blade can have a heater deposited thereon. The blades having no heater function as barriers to minimize outward escape of generated vapors. These barrier blades also function as heat sinks for the heaters on adjacent blades.

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