Heating assembly for aerosol-generating device

Abstract

A heating assembly for an aerosol-generating device is provided, the heating assembly including: a first substrate layer being an electrically isolating substrate layer; a heating element arranged on the first substrate layer; a second substrate layer being an electrically isolating substrate layer and arranged covering the heating element and the first substrate layer; a temperature sensor arranged on the second substrate layer; and a third substrate layer being an electrically isolating substrate layer and arranged at least partly covering the temperature sensor and the second substrate layer, and one or more of: a first adhesive layer disposed between the first substrate layer and the heating element, a second adhesive layer disposed between the heating element and the second substrate layer, a third adhesive layer disposed between the second adhesive layer and the temperature sensor, and a fourth adhesive layer disposed between the temperature sensor and the third substrate layer.

1 .- 15 . (canceled) 
     
     
         16 . A heating assembly for an aerosol-generating device, the heating assembly comprising:
 a first substrate layer, the first substrate layer being an electrically isolating substrate layer;   a heating element arranged on the first substrate layer;   a second substrate layer, the second substrate layer being an electrically isolating substrate layer, wherein the second substrate layer is arranged covering the heating element and the first substrate layer;   a temperature sensor arranged on the second substrate layer; and   a third substrate layer, the third substrate layer being an electrically isolating substrate layer, wherein the third substrate layer is arranged at least partly covering the temperature sensor and covering the second substrate layer,   wherein one or more of:
 a first adhesive layer disposed between the first substrate layer and the heating element, 
 a second adhesive layer disposed between the heating element and the second substrate layer, 
 a third adhesive layer disposed between the second adhesive layer and the temperature sensor, and 
 a fourth adhesive layer disposed between the temperature sensor and the third substrate layer. 
   
     
     
         17 . The heating assembly according to  claim 16 , wherein the heating element is a resistive heater. 
     
     
         18 . The heating assembly according to  claim 16 , wherein the heating element comprise a heating track. 
     
     
         19 . The heating assembly according to  claim 16 , wherein the heating element is printed on the first substrate layer. 
     
     
         20 . The heating assembly according to  claim 16 , wherein the heating assembly is rolled into a tube. 
     
     
         21 . The heating assembly according to  claim 16 , wherein the temperature sensor comprises two contacts. 
     
     
         22 . The heating assembly according to  claim 16 , wherein the third substrate layer comprises at least two openings. 
     
     
         23 . The heating assembly according to  claim 21 ,
 wherein the third substrate layer comprises at least two openings, and   wherein the at least two openings are aligned such that the two contacts are not covered by the third substrate layer.   
     
     
         24 . The heating assembly according to  claim 16 , wherein a heat shrink layer is arranged around the heating assembly. 
     
     
         25 . The heating assembly according to  claim 24 , wherein the heat shrink layer is made of PEEK. 
     
     
         26 . The heating assembly according to  claim 16 , wherein one or more of the first substrate layer, the second substrate layer, and the third substrate layer comprise a polyamide film. 
     
     
         27 . An aerosol-generating device comprising the heating assembly according to  claim 16 . 
     
     
         28 . The aerosol-generating device according to  claim 27 ,
 further comprising a cavity configured to receive an aerosol-generating article,   wherein the heating assembly is arranged at least partly surrounding the cavity.   
     
     
         29 . The aerosol-generating device according to  claim 28 ,
 wherein a sidewall of the cavity is formed of a stainless-steel tube, and   wherein the heating assembly is mounted on the stainless-steel tube.   
     
     
         30 . A method for manufacturing a heating assembly for an aerosol-generating device, the method comprising the steps of:
 providing a first substrate layer, the first substrate layer being an electrically isolating substrate layer;   arranging a heating element on the first substrate layer;   arranging a second substrate layer covering the heating element and the first substrate layer, the second substrate layer being an electrically isolating substrate layer;   arranging a temperature sensor on the second substrate layer;   arranging a third substrate layer at least partly covering the temperature sensor and covering the second substrate layer, the third substrate layer being an electrically isolating substrate layer; and   providing one or more of:
 a first adhesive layer between the first substrate layer and the heating element, 
 a second adhesive layer between the heating element and the second substrate layer, 
 a third adhesive layer between the second adhesive layer and the temperature sensor, and 
 a fourth adhesive layer between the temperature sensor and the third substrate layer.