An aerosol-generating device comprising a detachable housing portion

Abstract

An aerosol-generating device is provided, including: a first housing portion defining a chamber configured to receive an aerosol-forming substrate; a second housing portion; a heater positioned within the first housing portion; a power supply positioned within the second housing portion; control circuitry configured to control a supply of power from the power supply to the heater; and a first button and a second button each positioned on the first housing portion or the second housing portion, the first button having at least one of a different size and a different shape from the second button, the first button being configured to activate a first function of the aerosol-generating device, the second button being configured to activate a second function of the aerosol-generating device, and the first function being different from the second function. An aerosol-generating system including the aerosol-generating device and an aerosol-generating article is also provided.

1 - 108 . (canceled) 
     
     
         109 . An aerosol-generating device, comprising:
 a first housing portion defining a chamber configured to receive an aerosol-forming substrate;   a second housing portion;   a heater positioned within the first housing portion;   a power supply positioned within the second housing portion;   control circuitry configured to control a supply of power from the power supply to the heater; and   a first button and a second button each positioned on the first housing portion or the second housing portion,   wherein the first button has at least one of a different size and a different shape from the second button,   wherein the first button is configured to activate a first function of the aerosol-generating device,   wherein the second button is configured to activate a second function of the aerosol-generating device, and   wherein the first function is different from the second function.   
     
     
         110 . The aerosol-generating device according to  claim 109 ,
 wherein the power supply is a first power supply, and   wherein the aerosol-generating device further comprises a second power supply positioned within the first housing portion.   
     
     
         111 . The aerosol-generating device according to  claim 110 , wherein the control circuitry is further configured to control a supply of power from the second power supply to the heater. 
     
     
         112 . The aerosol-generating device according to  claim 111 , wherein the control circuitry is further configured to:
 supply power from the first power supply to the heater during at least one of a preheating phase and a main heating phase, and   supply power from the second power supply to the heater during at least one of a preheating phase and a main heating phase.   
     
     
         113 . The aerosol-generating device according to  claim 112 , wherein the control circuitry is further configured to supply power from the first power supply or the second power supply to the heater during the preheating phase to heat the heater or a susceptor to an operating temperature. 
     
     
         114 . The aerosol-generating device according to  claim 112 , wherein the control circuitry is further configured to supply power from the first power supply or the second power supply to the heater during the main heating phase to maintain a temperature of the heater within an operating temperature range. 
     
     
         115 . The aerosol-generating device according to  claim 110 ,
 wherein the second housing portion is configured for removable attachment to the first housing portion,   wherein the second power supply is a rechargeable power supply, and   wherein the control circuitry is further configured to control a supply of power from the first power supply to the second power supply for recharging the second power supply when the second housing portion is attached to the first housing portion.   
     
     
         116 . The aerosol-generating device according to  claim 110 ,
 wherein the first power supply has a first electrical charge storage capacity,   wherein the second power supply has a second electrical charge storage capacity, and   wherein the first electrical charge storage capacity is different from the second electrical charge storage capacity.   
     
     
         117 . The aerosol-generating device according to  claim 109 , wherein the heater is an inductive heater. 
     
     
         118 . The aerosol-generating device according to  claim 109 ,
 wherein the second housing portion is configured for removable attachment to the first housing portion, and   wherein the control circuitry is further configured to control the supply of power from the power supply to the heater when the second housing portion is attached to the first housing portion.   
     
     
         119 . The aerosol-generating device according to  claim 118 , further comprising a layer of material positioned between the first housing portion and the second housing portion when the second housing portion is attached to the first housing portion. 
     
     
         120 . The aerosol-generating device according to  claim 119 , wherein the material is at least one of a magnetic material and an electrically conductive material. 
     
     
         121 . The aerosol-generating device according to  claim 119 , wherein the layer of material forms a magnetic shield. 
     
     
         122 . The aerosol-generating device according to  claim 109 , wherein the first function is a first heating profile. 
     
     
         123 . The aerosol-generating device according to  claim 122 , wherein the second function is a second heating profile. 
     
     
         124 . The aerosol-generating device according to  claim 123 , wherein the first heating profile is different from the second heating profile. 
     
     
         125 . The aerosol-generating device according to  claim 109 , wherein the control circuitry has a low power mode, and an operating mode that uses more power than the low power mode. 
     
     
         126 . The aerosol-generating device according to  claim 125 , wherein the control circuitry is further configured to transition from the low power mode to the operating mode in response to detecting activation of at least one of the first button and the second button. 
     
     
         127 . The aerosol-generating device according to  claim 109 , wherein the control circuitry is further configured to perform at least one of the following:
 activate the first function in response to detecting activation of the first button for a predetermined length of time, and   activate the second function in response to detecting activation of the second button for a predetermined length of time.   
     
     
         128 . An aerosol-generating system, comprising:
 an aerosol-generating device according to  claim 109 ; and   an aerosol-generating article comprising an aerosol-forming substrate.