Heater for cigarette-like electronic cigarette with excellent heat transfer efficiency and manufacturing method thereof
AssigneeLattron Co. Ltd.
InventorsJae-choon Lee, Choung-Kook Lee, Young-seong Wang
Life of this patent
Estimating the term…
Abstract
A heater for a cigarette-like electronic cigarette and a method of manufacturing the heater are provided. The heater is provided with a heat transfer efficiency improved by strengthening a bonding force between a cigarette support portion and a heater portion by thermally pressing and bonding the cigarette support portion and the heater portion together using a heat-dissipating adhesive layer with a heat-dissipating filler added to a high-heat-resistant thermoplastic polyimide resin.
Claims12
A heater for an electronic cigarette, the heater comprising:
- a cigarette support portion configured to support a cigarette;
- a heater portion located on an outer side of the cigarette support portion to heat the cigarette bound to the cigarette support portion;
- and
- a heat-dissipating adhesive layer coated on a surface of the cigarette support portion to bond the cigarette support portion and the heater portion together,
- wherein
- the heater portion is located on an outer side of the heat-dissipating adhesive layer in a radial direction of the cigarette support portion,
- the cigarette support portion includes a polymer or ceramic material having a heat resistance of 350° C. or more,
- the heat-dissipating adhesive layer is comprised of:
- a thermoplastic polyimide resin;
- and
- a heat-dissipating filler dispersed and arranged in the thermoplastic polyimide resin,
- the heat-dissipating filler is added in an amount of 20-50 by weight based on 100 by weight of the thermoplastic polyimide resin,
- an adhesive force between the heat-dissipating adhesive layer and the cigarette support portion is 1.0 kgf/cm to 1.61 kgf/cm, and
- the heater has a thermal conductivity of 0.5-1.2 W/m·k.
A method of manufacturing a heater for an electronic cigarette, the method comprising:
- forming a heat-dissipating adhesive layer on an outer surface of a cigarette support portion, wherein the cigarette support portion includes a polymer or ceramic material having a heat resistance of 350° C. or more;
- arranging a heater portion to surround outside of the cigarette support portion on which the heat-dissipating adhesive layer is formed, wherein the heater portion is arranged on an outer side of the heat-dissipating adhesive layer in a radial direction of the cigarette support portion;
- and
- bonding the cigarette support portion and the heater portion together with the heat-dissipating adhesive layer by thermally pressing the cigarette support portion and the heater portion to obtain the heater,
- wherein
- the heat-dissipating adhesive layer is comprised of:
- a thermoplastic polyimide resin;
- and
- a heat-dissipating filler dispersed and arranged in the thermoplastic polyimide resin,
- the heat-dissipating filler is added in an amount of 20-50 by weight based on 100 by weight of the thermoplastic polyimide resin, and
- an adhesive force between the heat-dissipating adhesive layer and the cigarette support portion is 1.0 kgf/cm to 1.61 kgf/cm, and
- the heater has a thermal conductivity of 0.5-1.2 W/m·k.
Dependencies are inferred from the claim text.