Abstract: An axially rotating electric heating device for extracting tobacco includes a heating cavity outer shell, a heating cavity inner shell, and a heating assembly. The heating assembly includes a heating cavity that accommodates a smoking product and a heating element located in a cigarette heating cavity. The heating cavity is surrounded by the heating cavity inner shell; the heating element is inserted into the smoking product so as to heat the smoking product. The heating cavity inner shell is located at the front end of the heating assembly; the heating cavity outer shell and the heating cavity inner shell form an integral body; the heating cavity may rotate relative to the axis of the heating element to separate the smoking product from the heating element, thereby facilitating the extraction of the smoking product after smoking is finished.

Abstract: A needle-type heater (9) includes a needle-shaped heating body and a heating element (20), wherein: the needle-shaped heating body includes a tapered cap (18) and a heater substrate (19) connected with a bottom of the tapered cap (18); and the heating element (20) is attached to the heater substrate (19) in a way of coated printing. A production method of the needle-type heater (9) and an electrically heated cigarette with the needle-type heater (9) are also provided. The needle-type heater (9) can fully heat a tobacco product, and the tobacco product is easier to be inserted into a heating cavity (8), so that it is convenient to replace the tobacco product and use.

Abstract: Disclosed are a method for controlling the temperature of a heating apparatus in an electrically-heated smoking system and an electrically-heated smoking system, the method includes: providing a constant or variable preset temperature value; outputting a constant current to a heating apparatus by a constant current source; and controlling an actual temperature of the heating apparatus to be maintained at a preset temperature, wherein the temperature control step comprises: obtaining a voltage value corresponding to the constant current at the two ends of the electrical heating apparatus; deriving the actual temperature value of the heating apparatus according to the voltage value; comparing the actual temperature value of the heating apparatus with the preset temperature; and maintaining the actual temperature value of the heating apparatus at the preset temperature by adjusting a heating power supply.

Abstract: An axially rotating electric heating device for extracting tobacco, comprising a heating cavity outer shell, a heating cavity inner shell, and a heating assembly; the heating assembly comprises a heating cavity that accommodates a smoking product and a heating element located in a cigarette heating cavity; the heating cavity is surrounded by the heating cavity inner shell; the heating element may be inserted into the smoking product so as to heat the smoking product; the heating cavity inner shell is located at the front end of the heating assembly; the heating cavity outer shell and the heating cavity inner shell form an integral body; the heating cavity may rotate relative to the axis of the heating element to separate the smoking product from the heating element, thereby facilitating the extraction of the smoking product after smoking is finished.

Abstract: A needle-type heater (9) includes a needle-shaped heating body and a heating element (20), wherein: the needle-shaped heating body includes a tapered cap (18) and a heater substrate (19) connected with a bottom of the tapered cap (18); and the heating element (20) is attached to the heater substrate (19) in a way of coated printing. A production method of the needle-type heater (9) and an electrically heated cigarette with the needle-type heater (9) are also provided. The needle-type heater (9) can fully heat a tobacco product, and the tobacco product is easier to be inserted into a heating cavity (8), so that it is convenient to replace the tobacco product and use.