EP3626089B1 - Back-räucher-set umfassend ein blattförmiges heizelement - Google Patents

Back-räucher-set umfassend ein blattförmiges heizelement Download PDF

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Publication number
EP3626089B1
EP3626089B1 EP19198577.9A EP19198577A EP3626089B1 EP 3626089 B1 EP3626089 B1 EP 3626089B1 EP 19198577 A EP19198577 A EP 19198577A EP 3626089 B1 EP3626089 B1 EP 3626089B1
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EP
European Patent Office
Prior art keywords
heating element
sheet
smoking set
set according
shaped substrate
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Active
Application number
EP19198577.9A
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English (en)
French (fr)
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EP3626089A1 (de
Inventor
Xingfu Zhang
Riming Fang
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Shenzhen Smoore Technology Ltd
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Shenzhen Smoore Technology Ltd
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Publication of EP3626089A1 publication Critical patent/EP3626089A1/de
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Publication of EP3626089B1 publication Critical patent/EP3626089B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/03—Electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/262—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an insulated metal plate
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to cigarette substitutes, and specifically to a baked smoking set.
  • Publication CN 207 411 491 U discloses a heating device for an electronic cigarette comprising a heating sheet with a plurality of fins as well as blade portions arranged at the edges of the heating sheet.
  • Publication CN 205 757 216 U discloses a heating device for an electronic cigarette comprising a ceramic heating plate on which a heating resistance is printed.
  • Publication CN 107 874 322 A discloses a heating device for an electronic cigarette comprising a metallic substrate.
  • the technical solution of the invention adopted for solving the technical problem is to construct a baked smoking set, comprising a tubular sleeve and a sheet-shaped heating element detachably inserted into the sleeve, wherein;
  • the heating element comprises a first surface and a second surface opposite to the first surface in a thickness direction; the blade portion comprises a chamfer on an edge of the first surface and/or the second surface adjacent to the first side, and a chamfer on an edge of the first surface and/or the second surface adjacent to the second side; each chamfer is a bevel or a fillet.
  • the chamfers are provided respectively on two opposite sides in a width direction of the first surface and the second surf ace, and the blade portions of the first side and the second side transform the first side and the second side of the heating element to round edges or sharp edges.
  • the edge of the first surface or the second surface adjacent to the first side is provided with the chamfer, and the edge of the first surface or the second surface adjacent to the second side is provided with the chamfer, to transform the first side and the second side to sharp edges.
  • one end of the heating element is provided with a sharp head that facilitates inserting into a cigarette.
  • the sheet-shaped substrate is made of a metallic or an alloy material, and the blade portion is formed by punching.
  • the sheet-shaped substrate comprises a flat surface between the blade portions on the two opposite sides of the heating element, and the conductive path is printed in an area of the flat surface.
  • the heating element further comprises an isolation layer covered outside the conductive path.
  • the isolation layer is a glaze layer formed by sintering a glass glaze, and an outer surface of the heating element is covered by the isolation layer.
  • Implementing the baked smoking set of the invention has the following advantageous effects: since the two sides of the heating element become thinner gradually, when the heating element is inserted into a cigarette received in the sleeve, pressures of the two sides of the heating element on tobaccos can be reduced, and tobaccos proximal to the two sides corresponding to the blade portions may not be subjected to large extrusion or compression, thereby relieving the pressures on tobaccos proximal to the two sides, and improving atomizing efficiency of tobaccos.
  • the blade portion also can represent a smooth transition, to prevent tobaccos from sticking on the two sides of the heating element.
  • a baked smoking set in one preferable embodiment of the invention comprises a tubular sleeve 1, and a heating assembly 2 comprising a heating element 21, a leading wire 22 and a mounting base 23.
  • the heating element 21 is in a sheet shape, and is detachably inserted into the sleeve 1.
  • the heating element 21 comprises a first end A and a second end B opposite to the first end A in a length direction, and the first end A is configured to be inserted into the sleeve 1 of the baked smoking set.
  • the heating element 21 comprises a first side C and a second side D opposite to the first side C in a width direction, and the first side C and the second side D are provided with a blade portion 211 respectively that allows a thickness of the heating element 21 to gradually decrease towards an edge in the width direction.
  • a central line of the heating element 21 is coaxial with a center of the sleeve 1, and distances from two opposite sides in the width direction of the heating element 21 to an inner wall surface of the sleeve 1 respectively are equivalent.
  • the blade portions 211 also can represent a smooth transition, to prevent tobaccos from sticking on the two sides of the heating element 21.
  • the heating element 21 comprises a first surface E and a second surface F opposite to the first surface E in a thickness direction, and the blade portions 211 comprises chamfers on edges of the first surface E and the second surface F adjacent to the first side C, and chamfers on the edges of the first surface E and the second surface F adjacent to the second side D.
  • Each chamfer can be a bevel or a fillet.
  • the edges of the first surface E and the second surface F adjacent to the first side C are respectively provided with the chamfer, and the edges of the first surface E and the second surface F adjacent to the second side D are respectively provided with the chamfer, and the blade portions 211 of the first side C and the second side D transform the first side C and the second side D of the heating element 21 to round edges or sharp edges.
  • the blade portions 211 may comprise a chamfer only on the edge of the first surface E or the second surface F adjacent to the first side C, and a chamfer only on the edge of the first surface E or the second surface F adjacent to the second side D, to transform the first side C and the second side D to sharp edges, so as to facilitate once punch forming.
  • the heating element 21 comprises a sheet-shaped substrate 212 made of a metallic material, an insulating layer 213 covered on the sheet-shaped substrate 212, and a conductive path 214 disposed outside the insulating layer 213.
  • the leading wire 22 is connected to the conductive path 214, and the leading wire 22 is led outwardly.
  • the conductive path 214 can be supplied with power through the leading wire 22, so that the conductive path 214 generates heat to atomize tobaccos.
  • the heating element 21 is made of a metallic or an alloy material
  • the sheet-shaped substrate 212 may use metallic materials, such as stainless steel or titanium alloy, preferably stainless steel, such as 430 and 304 stainless steel.
  • a thickness of the sheet-shaped substrate 212 is generally 0.2 to 0.8 mm, and the sheet-shaped substrate 212 is formed by punch forming or wire cutting, which is low in cost.
  • the blade portions 211 on the sheet-shaped substrate 212 made of a metallic material can be formed by punching to further save cost.
  • Dimensions of length, width and the like of the heating element 21 are fitted with diameter and length of the cigarette, which facilitates sufficient heating of tobaccos.
  • the sheet-shaped substrate 212 made of a metallic material, as a main body of the heating element 21, has a high toughness, so that fracture of the heating element 21 can be effectively prevented under long-term high temperature and mechanical shock, such as, cigarette loading, and the like. Meanwhile, the sheet-shaped substrate 212 made of a metallic material has a good thermal conductive performance, which ensures uniformity of a surface temperature of the heating element 21, and facilitates heating the non-combustible cigarette to obtain an optimized taste.
  • the area exceeding 215 degrees Celsius around the heating element 21 made of stainless steel is larger than that around the heating element 21 made of ceramic such as zirconium oxide and the like, so the atomizing efficiency of the heating element 21 made of stainless steel is higher, and taste is better.
  • the first end A of the sheet-shaped substrate 212 is provided with a sharp head 215 that facilitates inserting into a cigarette 3.
  • the sharp head 215 can guide insertion of the heating element 21, and reduce a resistant force when inserting.
  • the sheet-shaped substrate 212 comprises a flat surface 2121 between the blade portions 211 on the two opposite sides of the heating element 21, and the conductive path 214 is printed in an area of the flat surface 2121.
  • the blade portions 211 are disposed outwardly by two opposite sides in a width direction of the flat surface 2121.
  • the insulating layer 213 is formed by sintering at 400 to 1000 °C after a surface of the sheet-shaped substrate 212 is covered by a glass slurry containing silicon oxide, calcium oxide, and aluminum oxide, and since the sheet-shaped substrate 212 made of a metallic or an alloy material is conductive, the insulating layer 213 can prevent a short circuit between the sheet-shaped substrate 212 and the conductive path 214.
  • the insulating layer 213 is covered on the sheet-shaped substrate 212 by the way of spraying or printing, and a thickness of the insulating layer 213 can be designed according to pressure resistance requirements between the conductive path 214 and the sheet-shaped substrate 212. Generally, the insulating layer 213 has a thickness less than 0.1 mm.
  • the conductive path 214 is located on one side of the insulating layer 213.
  • the insulating layer 213 also can be provided only on one side of the sheet-shaped substrate 212 which the conductive path 214 is disposed, and when the heating element 21 is made of a non-metallic and non-conductive material, the insulating layer 213 also can be removed.
  • the conductive path 214 as a resistance heater, can be a conductive layer formed on the insulating layer 213 in a manner of such as physical vapor deposition, or electroplating, or printing.
  • the conductive path 214 comprises a heating resistor 2141, and an electrical connection portion electrically connected to the heating resistor 2141.
  • the heating resistor 2141 and the electrical connection portion are arranged along a length direction of the sheet-shaped substrate 212, and conductive electrodes 2142 are connected to an external circuit.
  • the electrical connection portion comprises two conductive electrodes 2142 electrically connected to the heating resistor 2141.
  • the leading wires 22 are connected to the conductive electrodes 2142, and are led out from one end away from the heating resistor 2141 along a length direction of the heating element 21, i.e., the heating resistor 2141 and the conductive electrodes 2142 are arranged in a direction from the first end A to the second end B, and the leading wires 22 are led outwardly from the second end B.
  • the heating resistor 2141 can be formed by sintering after printing with any one of silver-palladium resistance slurry, ruthenium-palladium resistance slurry, platinum slurry and nickel-based slurry.
  • the heating resistor 2141 can be flexibly patterned, and an appropriate resistance value desired for the heating element 21 is obtained in cooperation with the slurry properties and a thickness of the heating resistor 2141.
  • the resistance value of the heating element 21 is usually between 0.3 to 2.0 ⁇ , and the thickness of the heating resistor 2141 is usually less than 0.1mm, preferably, less than 20 1 ⁇ m.
  • the conductive electrode 2142 is formed by sintering after printing with silver-based slurry having a relatively low resistivity.
  • the heating resistor 2141 can be powered to generate heat, and the leading wire 22 can be connected to the conductive electrodes 2142 by the way of high temperature brazing with silver-copper solder, or pure silver solder, or nickel solder under a protective atmosphere of 600 to 1100 °C.
  • the leading wire 22 is connected to the conductive electrode 2142 by the way of tin welding with a high-temperature welding paste, and a use temperature is greater than 300 °C.
  • through holes 2122 are provided in a section of a length direction of the sheet-shaped substrate 212 where the conductive electrode 2142 is located.
  • the through holes 2122 can isolate heat, and reduce heat delivered to the second end B.
  • the section corresponding to the conductive electrode 2142 has a relatively low temperature, tobaccos cannot be sufficiently atomized, and tobacco shreds can store and absorb a certain amount of tobacco tar, so the tobacco tar can be prevented or reduced from leakage.
  • the heating element 21 further comprises an isolation layer 216 covered outside the conductive path 214.
  • the isolation layer 216 is a glaze layer formed by sintering a glass glaze, and a thickness is usually less than 0.1 mm thereof. Two sides of the sheet-shaped substrate 212 are covered by the isolation layer 216 respectively.
  • the glaze layer allows a surface of the heating element 21 to be smooth, and has a small roughness to reduce adhesion of smoke stains and smoke tar after baking of tobaccos, and facilitate scrubbing.
  • the isolation layer 216 also can be covered only on one side where the conductive path 214 is located.
  • a width of the heating element 21 from the first end A to the second end B gradually increases, so the heating element 21 is in a sword shape; the first end A is narrow, combining with a thinning structure of the blade portion 211, so that a resistant force is relatively small when the heating element 21 is inserted, to facilitate insertion, and accumulation of tobaccos on sides of the heating element 21 also can be effectively reduced.
  • a bottom of the heating element becomes wider to facilitate increasing strength of the heating element 21, and prevent fracture of the heating element due to inserting and pulling the cigarette several times.
  • an angle between the two opposite sides in a width direction of the sharp head 215 is greater than an angle between the two opposite sides in a width direction of the second end B of the heating element 21.
  • the heating element 21 also can be a triangle.
  • the mounting base 23 is sleeved on the second end B of the heating element 21, i.e., sleeved on the end led out of the leading wires 22 of the heating element 21, and sleeved onto the electrical connection portion.
  • the mounting base 23 also can be an individual component, which is separately mounted on the heating element 21.
  • the sharp head 215 is located on one end of the heating element 21 away from the mounting base 23, and the mounting base 23 and the sharp head 215 are respectively located on two opposite ends of the heating element 21. After one end of the sharp head 215 of the heating element 21 is inserted into the sleeve 1, the mounting base 23 abuts against an outer end of the sleeve 1, to define an insertion depth of the heating element 21.
  • through holes 2122 are provided in the section of a length direction of the sheet-shaped substrate 212 where the conductive electrode 2142 is located, transmission of heat to the second end B is reduced, and excess temperature of the mounting base 23 also can be prevented.
  • the mounting base 23 is formed by injection molding using high-molecular polymer, and the commonly used material is polyether-etherketone, high-temperature nylon and the like.

Landscapes

  • Resistance Heating (AREA)

Claims (9)

  1. Back-Räucher-Set, umfassend eine röhrenförmige Hülse (1) und ein blattförmiges Heizelement (21), das lösbar in die Hülse (1) eingeführt ist, wobei
    das Heizelement (21) eine erste Seite (C) und eine zweite Seite (D) gegenüber der ersten Seite (C) in einer Breitenrichtung umfasst, wobei die erste Seite (C) und die zweite Seite (D) jeweils mit einem Klingenabschnitt (211) bereitgestellt sind, der ermöglicht, dass eine Dicke des Heizelements (21) in Richtung einer Kante in der Breitenrichtung allmählich abnimmt, wobei eine Mittellinie des Heizelements (21) koaxial mit einer Mitte der Hülse (1) ist und Abstände von zwei gegenüberliegenden Seiten in der Breitenrichtung des Heizelements (21) zu einer Innenwandoberfläche der Hülse (1) jeweils äquivalent sind,
    wobei das Heizelement (21) ein blattförmiges Substrat (212), eine Isolierschicht (213), die auf dem blattförmigen Substrat (212) bedeckt ist, und einen leitenden Weg (214) umfasst, der auf der Isolierschicht (213) angeordnet ist, und der leitende Weg (214) Wärme erzeugt, nachdem er mit Strom versorgt wurde,
    wobei das Heizelement (21) ein erstes Ende (A) und ein zweites Ende (B) gegenüber dem ersten Ende (A) in einer Längsrichtung des Heizelements (21) umfasst und das erste Ende (A) konfiguriert ist, um in die röhrenförmige Hülse (1) des Back-Räucher-Sets eingeführt zu werden, wobei eine Breite des Heizelements (21) von dem ersten Ende (A) zu dem zweiten Ende (B) allmählich zunimmt.
  2. Back-Räucher-Set nach Anspruch 1, dadurch gekennzeichnet, dass das Heizelement (21) eine erste Oberfläche (E) und eine zweite Oberfläche (F) gegenüber der ersten Oberfläche (E) in einer Dickenrichtung umfasst;
    wobei die Klingenabschnitte (211) eine Fase an einer Kante der ersten Oberfläche (E) und/oder der zweiten Oberfläche (F) benachbart zu der ersten Seite (C) und eine Fase an einer Kante der ersten Oberfläche (E) und/oder der zweiten Oberfläche (F) benachbart zu der zweiten Seite (D) umfassen; wobei jede Fase eine Abschrägung oder eine Verrundung ist.
  3. Back-Räucher-Set nach Anspruch 2, dadurch gekennzeichnet, dass die Fasen jeweils an zwei gegenüberliegenden Seiten in einer Breitenrichtung der ersten Oberfläche (E) und der zweiten Oberfläche (F) bereitgestellt sind und die Klingenabschnitte (211) der ersten Seite (C) und der zweiten Seite (D) die erste Seite (C) und die zweite Seite (D) des Heizelements (21) in runde Kanten oder scharfe Kanten umwandeln.
  4. Back-Räucher-Set nach Anspruch 2, dadurch gekennzeichnet, dass die Kante der ersten Oberfläche (E) oder der zweiten Oberfläche (F) benachbart zur ersten Seite (C) mit der Fase bereitgestellt ist und die Kante der ersten Oberfläche (E) oder der zweiten Oberfläche (F) benachbart zu der zweiten Seite (D) mit der Fase bereitgestellt ist, um die erste Seite (C) und die zweite Seite (D) in scharfe Kanten umzuwandeln.
  5. Back-Räucher-Set nach Anspruch 1, dadurch gekennzeichnet, dass ein Ende des Heizelements (21) mit einem scharfen Kopf (215) bereitgestellt ist, der das Einführen in eine Zigarette (3) erleichtert.
  6. Back-Räucher-Set nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das blattförmige Substrat (212) aus einem metallischen oder einem Legierungsmaterial hergestellt ist und der Klingenabschnitt (211) durch Stanzen gebildet ist.
  7. Back-Räucher-Set nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das blattförmige Substrat (212) eine flache Oberfläche (2121) zwischen den Klingenabschnitten (211) auf den zwei gegenüberliegenden Seiten des Heizelements (21) umfasst und der leitende Weg (214) in einem Bereich der flachen Oberfläche (2121) gedruckt ist.
  8. Back-Räucher-Set nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Heizelement (21) ferner eine Isolationsschicht (216) umfasst, die außerhalb des leitenden Weges (214) bedeckt ist.
  9. Back-Räucher-Set nach Anspruch 8, dadurch gekennzeichnet, dass die Isolationsschicht (216) eine Glasurschicht ist, die durch Sintern einer Glasglasur gebildet wird, und eine äußere Oberfläche des Heizelements (21) durch die Isolationsschicht (216) bedeckt ist.
EP19198577.9A 2018-09-21 2019-09-20 Back-räucher-set umfassend ein blattförmiges heizelement Active EP3626089B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811110771.0A CN109123806A (zh) 2018-09-21 2018-09-21 烘烤烟具

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EP3626089A1 EP3626089A1 (de) 2020-03-25
EP3626089B1 true EP3626089B1 (de) 2023-05-10

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EP (1) EP3626089B1 (de)
JP (1) JP6874079B2 (de)
KR (1) KR102331993B1 (de)
CN (1) CN109123806A (de)

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CN113710112A (zh) * 2020-07-28 2021-11-26 深圳麦克韦尔科技有限公司 加热片、雾化器及电子雾化装置
CN113197359A (zh) * 2021-04-28 2021-08-03 深圳麦克韦尔科技有限公司 一种发热体及电子雾化装置
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