Aerosol-generating device

Abstract

The utility model provides an aerosol generating device. A main body comprises a circuit, a first electric connection terminal and a first heater electrically connected with the circuit; the first heater is configured to be inserted into the aerosol generating product for heating, one end of the first electric connection terminal is electrically connected with the circuit, and the other end of the first electric connection terminal is exposed on the shell of the main body; the extractor comprises a second heater, a temperature measuring element with a resistance temperature coefficient and a third electric connection terminal; the second heater is configured to heat around the aerosol generating product, the temperature measuring element is used for measuring the temperature of the second heater, one end of the third electric connection terminal is electrically connected with the temperature measuring element, and the other end of the third electric connection terminal is exposed on the shell of the extractor; when the extractor is connected with the main body, the other end of the first electrical connection terminal is kept in contact with the other end of the third electrical connection terminal to form electrical connection. The problem that the lead is easy to damage is avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and particularly relates to an aerosol generation device. Background Art

[0002] Smoking articles such as cigarettes and cigars burn tobacco during use to produce smoke. Some products have been tried to provide alternatives to these products that burn tobacco. Examples of such products are so-called heat-not-burn products, which release compounds by heating tobacco rather than burning it.

[0003] An existing aerosol generation device uses a central heating method (which can also be called an internal heating method) and a circumferential heating method (which can also be called an external heating method) to heat an aerosol generation article, so that the aerosol generation article can be heated more sufficiently and the utilization rate of the aerosol generation article can be improved. The device usually arranges a central heater, a battery cell, etc. on a main body detachably connected to an extractor, and a circumferential heater is arranged on the extractor. The circumferential heater is electrically connected to the battery cell on the main body through a lead wire. The problem thus existing is that when extracting the aerosol generation article through the extractor, the lead wire is easily damaged, thereby affecting the use of the circumferential heater. Summary of the Utility Model

[0004] The present application provides an aerosol generation device to solve the problem that the lead wire is easily damaged when the extractor extracts the aerosol generation article.

[0005] On the one hand, the present application provides an aerosol generation device, including:

[0006] A main body, including a circuit, a first electrical connection terminal and a first heater electrically connected to the circuit; the first heater is configured to be at least partially inserted into the interior of the aerosol generation article for heating, one end of the first electrical connection terminal is electrically connected to the circuit, and the other end of the first electrical connection terminal is exposed on the housing of the main body;

[0007] An extractor, detachably connected to the main body; the extractor includes a second heater, a third electrical connection terminal and a temperature measuring element with a resistance temperature coefficient; the second heater is configured to heat around at least part of the aerosol generation article, the temperature measuring element is used to measure the temperature of the second heater, one end of the third electrical connection terminal is electrically connected to the temperature measuring element, and the other end of the third electrical connection terminal is exposed on the housing of the extractor;

[0008] Wherein, when the extractor is connected to the main body, the other end of the first electrical connection terminal and the other end of the third electrical connection terminal remain in contact to form an electrical connection.

[0009] In one example, the body further includes a second electrical connection terminal spaced from the first electrical connection terminal. One end of the second electrical connection terminal is electrically connected to one end of the first electrical connection terminal, and the other end of the second electrical connection terminal is exposed on the housing of the body.

[0010] The extractor further includes a fourth electrical connection terminal. One end of the fourth electrical connection terminal is electrically connected to one end of the third electrical connection terminal, and the other end of the fourth electrical connection terminal is exposed on the housing of the extractor and is spaced from the other end of the third electrical connection terminal.

[0011] When the extractor is connected to the body, the other end of the second electrical connection terminal remains in contact with the other end of the fourth electrical connection terminal to form an electrical connection.

[0012] In one example, the first electrical connection terminal includes a first positive electrical connection terminal and a first negative electrical connection terminal, the second electrical connection terminal includes a second positive electrical connection terminal and a second negative electrical connection terminal, the third electrical connection terminal includes a third positive electrical connection terminal and a third negative electrical connection terminal, and the fourth electrical connection terminal includes a fourth positive electrical connection terminal and a fourth negative electrical connection terminal.

[0013] One end of the first positive electrical connection terminal, one end of the second positive electrical connection terminal, one end of the first negative electrical connection terminal, and one end of the second negative electrical connection terminal are electrically connected to the circuit, and the other ends of the first positive electrical connection terminal, the second positive electrical connection terminal, the first negative electrical connection terminal, and the second negative electrical connection terminal are exposed on the housing of the body.

[0014] One end of the third positive electrical connection terminal and one end of the fourth positive electrical connection terminal are electrically connected to one end of the temperature measuring element, one end of the third negative electrical connection terminal and one end of the fourth negative electrical connection terminal are electrically connected to the other end of the temperature measuring element, and the other ends of the third positive electrical connection terminal, the fourth positive electrical connection terminal, the third negative electrical connection terminal, and the fourth negative electrical connection terminal are exposed on the housing of the extractor at intervals.

[0015] In one example, the extractor further includes a circuit board. One end of the third electrical connection terminal and one end of the fourth electrical connection terminal are electrically connected to the temperature measuring element through the circuit board.

[0016] In one example, the housing of the extractor includes an outer shell and a bracket at least partially located inside the outer shell. The bracket includes a body spaced from the outer shell and an extension extending from the outer surface of the body toward the inner surface of the outer shell.

[0017] The body has a first accommodation cavity for accommodating at least part of the aerosol generating article; the second heater is disposed within the body; the bottom wall of the body has an opening communicating with the first accommodation cavity, and one end of the first heater can extend into the first accommodation cavity through the opening;

[0018] The other end of the third electrical connection terminal and the other end of the fourth electrical connection terminal are exposed between the housing and the body after passing through the extension portion.

[0019] In one example, the main body has a second accommodation cavity for accommodating at least part of the body;

[0020] The main body further has a surface facing the extension portion, and the other ends of the first electrical connection terminal and the second electrical connection terminal are exposed on the surface.

[0021] In one example, the circuit includes a constant current circuit and a voltage detection circuit;

[0022] The constant current circuit is electrically connected to one end of the first electrical connection terminal to apply a constant current to the temperature measuring element;

[0023] The voltage detection circuit is electrically connected to one end of the second electrical connection terminal to detect the voltage of the temperature measuring element.

[0024] In one example, the second heater includes a first substrate and a first resistive heating element disposed on the first substrate, and the first resistive heating element is made of a material having a resistance temperature coefficient, thereby forming the temperature measuring element.

[0025] In one example, the first heater includes a second substrate and a second resistive heating element disposed on the second substrate, and the second resistive heating element is made of a material having a resistance temperature coefficient.

[0026] On the other hand, the present application provides an aerosol generating device, including:

[0027] A main body, including a battery cell, a first electrical connection terminal, a circuit electrically connected to the battery cell, and a first heater electrically connected to the circuit; the first heater is configured to at least partially insert into the interior of the aerosol generating article for heating, one end of the first electrical connection terminal is electrically connected to the circuit, and the other end of the first electrical connection terminal is exposed on the housing of the main body;

[0028] An extractor, detachably connected to the main body; the extractor includes a second heater and a third electrical connection terminal; the second heater is configured to heat at least a part of the aerosol-generating article, one end of the third electrical connection terminal is electrically connected to the second heater, and the other end of the third electrical connection terminal is exposed on the housing of the extractor;

[0029] Wherein, when the extractor is connected to the main body, the other end of the first electrical connection terminal remains in contact with the other end of the third electrical connection terminal to form an electrical connection, so that the circuit can control the power supply from the battery cell to the first heater and / or the second heater.

[0030] In the aerosol-generating device provided in the present application, when the extractor is connected to the main body, the first electrical connection terminal on the main body remains in contact with the third electrical connection terminal on the extractor to form an electrical connection, avoiding the problem that the lead is easily damaged when using a lead connection, and improving the user experience. Description of the Drawings

[0031] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0032] Figure 1 is a schematic diagram of the aerosol-generating device provided by the embodiment of the present application;

[0033] Figure 2 is Figure 1 a schematic cross-sectional view of;

[0034] Figure 3 is Figure 1 an exploded schematic view of;

[0035] Figure 4 is Figure 3 a schematic cross-sectional view of;

[0036] Figure 5 is another perspective schematic view of the extractor provided by the embodiment of the present application;

[0037] Figure 6 is a circuit schematic diagram of the extractor and the main body provided by the embodiment of the present application;

[0038] Figure 7 is another circuit schematic diagram of the extractor and the main body provided by the embodiment of the present application;

[0039] Figure 8 is yet another circuit schematic diagram of the extractor and the main body provided by the embodiment of the present application. Detailed implementation manners

[0040] For ease of understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific implementation manners. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and similar expressions used in this specification are only for the purpose of illustration.

[0041] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in this specification in the description of the present application are only for the purpose of describing specific implementation manners and are not used to limit the present application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0042] As Figures 1-5 shown, an aerosol generating device provided in an embodiment of the present application includes a main body 100 and an extractor 200 detachably connected to the main body 100.

[0043] The housing of the main body 100 is composed of a main housing 101a, an upper housing 101b, and a bottom housing 101c. The main housing 101a is sleeved on the upper housing 101b, and the bottom housing 101c is provided at the bottom of the main housing 101a. The upper housing 101b is provided with a second accommodation cavity 101b1.

[0044] A bracket 102 is provided inside the housing of the main body 100. The bracket 102 cooperates with the housing of the main body 100, thereby mainly dividing the space inside the housing of the main body 100 into three different spaces: a space near the upper end of the housing of the main body 100, mainly used for accommodating the second accommodation cavity 101b1 of the upper housing 101b; a space near the left side of the housing of the main body 100, mainly used for accommodating the battery cell 103; a space near the right side of the housing of the main body 100, mainly used for the circuit 104.

[0045] An opening (not shown) is provided at the bottom of the second accommodation cavity 101b1. The first heater 105 is configured to be needle-shaped or sheet-shaped, and is shown as needle-shaped in the figure. The lower end of the first heater 105 is held at the opening at the bottom of the second accommodation cavity 101b1 through a flange or other similar structural members, and the upper end of the first heater 105 extends into the second accommodation cavity 101b1 and forms a free end. With such a configuration, the first heater 105 can be inserted into the inside of the aerosol generating article for heating, thereby generating an inhalable aerosol.

[0046] The first heater 105 can heat the aerosol generating article by one or more of heat conduction, electromagnetic induction, chemical reaction, infrared action, resonance, photoelectric conversion, and photothermal conversion.

[0047] In one example, the first heater 105 includes a second substrate and a second resistive heating element disposed on the second substrate. The second resistive heating element is made of a material having a resistance temperature coefficient. Thus, the second resistive heating element can be used not only for heating but also for measuring the temperature of the first heater 105, that is, as a temperature measuring element.

[0048] The battery cell 103 provides power for operating the aerosol generating device. The battery cell 103 can be, but is not limited to, a lithium iron phosphate (LiFePO4) battery, a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, etc. The battery cell 103 can be a primary battery or a secondary battery.

[0049] The circuit 104 is electrically connected to the battery cell 103 and the first heater 105. The circuit 104 can control the overall operation of the aerosol generating device.

[0050] The housing of the extractor 200 is composed of an outer shell 201a, a top cover 201b, and a bracket 201c.

[0051] The top cover 201b is provided on the top of the outer shell 201a. An insertion port 201b1 is provided on the top cover 201b, and the aerosol generating article can be removably inserted into the extractor 200 through the insertion port 201b1.

[0052] The bracket 201c is located inside the outer shell 201a. The bracket 201c includes a body 201c1 spaced from the outer shell 201a and an extension 201c2 extending from the outer surface of the body 201c1 toward the inner surface of the outer shell 201a. The body 201c1 is configured as a tubular structure, and its internal space forms a first accommodation cavity 201c11 communicating with the insertion port 201b1 to accommodate at least a part of the aerosol generating article. The bottom wall of the body 201c1 has an opening 201c12 communicating with the first accommodation cavity 201c11.

[0053] When the extractor 200 is connected to the main body 100, the body 201c1 is accommodated in the second accommodation cavity 101b1, and the upper end of the first heater 105 can extend into the first accommodation cavity 201c11 through the opening 201c12, so as to be inserted into the aerosol generating article for heating. The outer shell 201a is sleeved on the upper shell 101b and abuts against the main shell 101a, and the outer surface of the outer shell 201a is flush with the outer surface of the main shell 101a.

[0054] The second heater 202 is disposed within the body 201c1. The second heater 202 may be configured as a tubular structure so as to heat at least a portion of the aerosol generating article. A heat insulating member (not shown) may also be provided between the second heater 202 and the body 201c1 to reduce heat transfer to the outside.

[0055] The second heater 202 may heat the aerosol generating article by one or more of heat conduction, electromagnetic induction, chemical reaction, infrared action, resonance, photoelectric conversion, and photothermal conversion.

[0056] In one example, the second heater 202 includes a first substrate and a first resistive heating element disposed on the first substrate. The first resistive heating element is made of a material having a resistance temperature coefficient. Thus, the first resistive heating element can be used both for heating and for measuring the temperature of the second heater 202, that is, used as a temperature measuring element.

[0057] When the first resistive heating element is used both for heating and for measuring the temperature of the second heater 202, the main body 100 further includes a first electrical connection terminal 106 and a second electrical connection terminal 107; correspondingly, the extractor 200 further includes a circuit board 203, a third electrical connection terminal 204, and a fourth electrical connection terminal 205.

[0058] The first electrical connection terminal 106 and the second electrical connection terminal 107 are spaced apart. The first electrical connection terminal 106 includes a first positive electrical connection terminal 106a and a first negative electrical connection terminal 106b. The second electrical connection terminal 107 includes a second positive electrical connection terminal 107a and a second negative electrical connection terminal 107b. The third electrical connection terminal 204 includes a third positive electrical connection terminal 204a and a third negative electrical connection terminal 204b. The fourth electrical connection terminal 205 includes a fourth positive electrical connection terminal 205a and a fourth negative electrical connection terminal 205b.

[0059] Please refer to Figure 6 for understanding. In Figure 5 , R1 represents the resistance value of the first resistive heating element. "1" in the box represents one end of the electrical connection terminal, and "2" in the box represents the other end of the electrical connection terminal.

[0060] As shown in Figure 6As shown, one end of the first positive electrical connection terminal 106a, one end of the second positive electrical connection terminal 107a, one end of the first negative electrical connection terminal 106b, and one end of the second negative electrical connection terminal 107b are electrically connected to the circuit 104, and the other ends of the first positive electrical connection terminal 106a, the second positive electrical connection terminal 107a, the first negative electrical connection terminal 106b, and the second negative electrical connection terminal 107b are exposed on the housing of the main body 100; specifically, the upper housing 101b has a surface facing the extension portion 201c2, and the other ends of the first positive electrical connection terminal 106a, the second positive electrical connection terminal 107a, the first negative electrical connection terminal 106b, and the second negative electrical connection terminal 107b are exposed on this surface.

[0061] One end of the third positive electrical connection terminal 204a and one end of the fourth positive electrical connection terminal 205a are connected together and electrically connected to one end of the first resistive heating element in the second heater 202. One end of the third negative electrical connection terminal 204b and one end of the fourth negative electrical connection terminal 205b are connected together and electrically connected to the other end of the first resistive heating element in the second heater 202. The other ends of the third positive electrical connection terminal 204a, the fourth positive electrical connection terminal 205a, the third negative electrical connection terminal 204b, and the fourth negative electrical connection terminal 205b are spaced apart and exposed on the housing of the extractor 200. Specifically, one end of the first resistive heating element and the other end of the first resistive heating element are both soldered to the circuit board 203; one end of the third positive electrical connection terminal 204a, one end of the fourth positive electrical connection terminal 205a, one end of the third negative electrical connection terminal 204b, and one end of the fourth negative electrical connection terminal 205b are fixed to the circuit board 203, and can be fixed to the circuit board 203 by means such as plugging, fixing through structural members, soldering, etc., and then the electrical connection is realized by the circuits on the circuit board 203; the other ends of the third positive electrical connection terminal 204a, the fourth positive electrical connection terminal 205a, the third negative electrical connection terminal 204b, and the fourth negative electrical connection terminal 205b pass through the extension portion 201c2 and are exposed between the outer shell 201a and the main body 201c1.

[0062] Thus, when the extractor 200 is connected to the main body 100, the other end of the first positive electrical connection terminal 106a remains in contact with the other end of the third positive electrical connection terminal 204a to form an electrical connection, the other end of the second positive electrical connection terminal 107a remains in contact with the other end of the fourth positive electrical connection terminal 205a to form an electrical connection, the other end of the first negative electrical connection terminal 106b remains in contact with the other end of the third negative electrical connection terminal 204b to form an electrical connection, and the other end of the second negative electrical connection terminal 107b remains in contact with the other end of the fourth negative electrical connection terminal 205b to form an electrical connection. Conversely, when the extractor 200 is separated from the main body 100, i.e., when the extractor 200 extracts the aerosol-generating article, the electrical connection between the above terminals is disconnected.

[0063] When an electrical connection is formed by maintaining contact between the above terminals, the circuit 104 can control the battery cell 103 to independently supply power to the first heater 105 and the second heater 202, so that one of them works independently or both work simultaneously. In addition, the circuit 104 can determine whether the aerosol-generating device can operate by checking the status of the components of the aerosol-generating device. Further, the aerosol-generating device further includes a button, and the operation of the aerosol-generating device can be realized by pressing the button.

[0064] In one example, the circuit 104 includes a constant current circuit 1041 and a voltage detection circuit 1042;

[0065] The constant current circuit 1041 is electrically connected to one end of the first electrical connection terminal 106 to apply a constant current to the first resistive heating element in the second heater 202; the voltage detection circuit 1042 is electrically connected to one end of the second electrical connection terminal 107 to detect the voltage of the first resistive heating element in the second heater 202. The voltage detection circuit 1042 can adopt an ADC detection circuit.

[0066] Specifically, as Figure 7 shown, one end of the constant current circuit 1041 is electrically connected to one end of the first positive electrical connection terminal 106a, and one end of the constant current circuit 1041 is electrically connected to one end of the first negative electrical connection terminal 106b; one end of the voltage detection circuit 1042 is electrically connected to one end of the second positive electrical connection terminal 107a, and one end of the voltage detection circuit 1042 is electrically connected to one end of the second negative electrical connection terminal 107b. R2 in the figure is the contact resistance between the second electrical connection terminal 107 and the fourth electrical connection terminal 205, and R3 is the contact resistance between the first electrical connection terminal 106 and the third electrical connection terminal 204.

[0067] Assume that the constant current applied to the first resistive heating element is I1, and the voltage of the first resistive heating element detected by the voltage detection circuit 1042 is U1. Then, according to Ohm's law, the resistance value R1 of the first resistive heating element can be calculated. When detecting the voltage of the first resistive heating element through the voltage detection circuit 1042, since the current in the loop where R1 and R2 are located is basically zero and there is no voltage drop across the contact resistance R2, the voltage of the first resistive heating element detected is relatively accurate, and the calculated resistance value R1 of the first resistive heating element is also very accurate.

[0068] Based on the calculated resistance value R1 of the first resistive heating element, the circuit 104 can determine the temperature of the second heater 202.

[0069] It can be understood that since the second resistive heating element in the first heater 105 is also made of a material with a resistance temperature coefficient, the resistance value of the second resistive heating element can also be calculated through the Figure 7 circuit and method shown, and thus the temperature of the first heater 105 can be determined.

[0070] It should be noted that in other examples, the second heater 202 is only used to heat the aerosol generating article, and it is also feasible to separately set a temperature measuring element for measuring the temperature of the second heater 202. In this example, the temperature measuring element is made of a material with a resistance temperature coefficient and is arranged close to the second heater 202, for example, attached to the outer surface of the second heater 202 or close to the outer surface of the second heater 202; the temperature measuring element is electrically connected through the aforementioned third electrical connection terminal 204 and fourth electrical connection terminal 205, and the first electrical connection terminal 106 and second electrical connection terminal 107 are arranged in the main body 100. The specific structural design and measurement method can refer to the previous part. In this example, the heating method of the second heater 202 is not limited, and the electrical connection method with the circuit 104 or the battery cell 103 is not limited.

[0071] Figure 8 shows a different circuit schematic diagram from Figure 7 . As Figure 8 shown, different from Figure 7 , in this example, the first electrical connection terminal 106 and the third electrical connection terminal 204 are not provided, and R2 in the figure is the contact resistance between the second electrical connection terminal 107 and the fourth electrical connection terminal 205. Through the current in the loop where R1 and R2 are located and the detected voltage, the actually calculated resistance value includes the resistance value of the contact resistance R2. Therefore, compared with Figure 7 the wiring method and calculation method, the accuracy of the calculated resistance value R1 of the first resistive heating element is relatively poor. UsuallyFigure 8 It is applicable to measure resistances above the ohm level.

[0072] It should be noted that the description and drawings of this application provide preferred embodiments of this application. However, this application can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations to the content of this application. The purpose of providing these embodiments is to make the understanding of the disclosed content of this application more thorough and comprehensive. Moreover, the above technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as within the scope described in the description of this application; further, for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of this application.

Claims

1. An aerosol generating device, characterized in that, Comprising: A body, including a circuit, a first electrical connection terminal, and a first heater electrically connected to the circuit; The first heater is configured to be at least partially inserted into the interior of the aerosol-generating article for heating. One end of the first electrical connection terminal is electrically connected to the circuit, and the other end of the first electrical connection terminal is exposed on the housing of the body; An extractor, detachably connected to the body; the extractor includes a second heater, a third electrical connection terminal, and a temperature-measuring element having a resistance temperature coefficient; The second heater is configured to heat at least part of the aerosol-generating article. The temperature-measuring element is used to measure the temperature of the second heater. One end of the third electrical connection terminal is electrically connected to the temperature-measuring element, and the other end of the third electrical connection terminal is exposed on the housing of the extractor; Wherein, when the extractor is connected to the body, the other end of the first electrical connection terminal remains in contact with the other end of the third electrical connection terminal to form an electrical connection.

2. The aerosol generating device according to claim 1, wherein The body further includes a second electrical connection terminal spaced from the first electrical connection terminal. One end of the second electrical connection terminal is electrically connected to one end of the first electrical connection terminal, and the other end of the second electrical connection terminal is exposed on the housing of the body; The extractor further includes a fourth electrical connection terminal. One end of the fourth electrical connection terminal is electrically connected to one end of the third electrical connection terminal, and the other end of the fourth electrical connection terminal is exposed on the housing of the extractor and is spaced from the other end of the third electrical connection terminal; When the extractor is connected to the body, the other end of the second electrical connection terminal remains in contact with the other end of the fourth electrical connection terminal to form an electrical connection.

3. The aerosol generating device according to claim 2, characterized in that, The first electrical connection terminal includes a first positive electrical connection terminal and a first negative electrical connection terminal. The second electrical connection terminal includes a second positive electrical connection terminal and a second negative electrical connection terminal. The third electrical connection terminal includes a third positive electrical connection terminal and a third negative electrical connection terminal. The fourth electrical connection terminal includes a fourth positive electrical connection terminal and a fourth negative electrical connection terminal; One end of the first positive electrical connection terminal, one end of the second positive electrical connection terminal, one end of the first negative electrical connection terminal, and one end of the second negative electrical connection terminal are electrically connected to the circuit. The other end of the first positive electrical connection terminal, the other end of the second positive electrical connection terminal, the other end of the first negative electrical connection terminal, and the other end of the second negative electrical connection terminal are exposed on the housing of the body; One end of the third positive electrical connection terminal and one end of the fourth positive electrical connection terminal are electrically connected to one end of the temperature-measuring element. One end of the third negative electrical connection terminal and one end of the fourth negative electrical connection terminal are electrically connected to the other end of the temperature-measuring element. The other end of the third positive electrical connection terminal, the other end of the fourth positive electrical connection terminal, the other end of the third negative electrical connection terminal, and the other end of the fourth negative electrical connection terminal are spaced and exposed on the housing of the extractor.

4. The aerosol generating device according to claim 2, wherein The extractor further includes a circuit board, and one end of the third electrical connection terminal and one end of the fourth electrical connection terminal are electrically connected to the temperature measuring element through the circuit board.

5. The aerosol generating device according to claim 2, wherein The housing of the extractor includes an outer shell and a bracket at least partially located inside the outer shell. The bracket includes a body spaced from the outer shell and an extension extending from the outer surface of the body toward the inner surface of the outer shell; The body has a first accommodation cavity for accommodating at least a part of the aerosol-generating article; The second heater is disposed inside the body; the bottom wall of the body has an opening communicating with the first accommodation cavity, and one end of the first heater can extend into the first accommodation cavity through the opening; The other ends of the third electrical connection terminal and the fourth electrical connection terminal are exposed between the outer shell and the body after passing through the extension.

6. The aerosol generating device according to claim 5, wherein, The main body has a second accommodation cavity for accommodating at least a part of the body; The main body further has a surface facing the extension, and the other ends of the first electrical connection terminal and the second electrical connection terminal are exposed on the surface.

7. The aerosol generating device according to claim 2, wherein, The circuit includes a constant current circuit and a voltage detection circuit; The constant current circuit is electrically connected to one end of the first electrical connection terminal to apply a constant current to the temperature measuring element; The voltage detection circuit is electrically connected to one end of the second electrical connection terminal to detect the voltage of the temperature measuring element.

8. The aerosol generating device according to claim 1, wherein The second heater includes a first base body and a first resistive heating element disposed on the first base body. The first resistive heating element is made of a material having a resistance temperature coefficient, thereby forming the temperature measuring element.

9. The aerosol generating device according to claim 1, wherein The first heater includes a second base body and a second resistive heating element disposed on the second base body. The second resistive heating element is made of a material having a resistance temperature coefficient.

10. An aerosol generating device, characterized in that, Comprising: A main body, including a battery cell, a first electrical connection terminal, a circuit electrically connected to the battery cell, and a first heater electrically connected to the circuit; The first heater is configured to be at least partially inserted into the interior of the aerosol-generating article for heating. One end of the first electrical connection terminal is electrically connected to the circuit, and the other end of the first electrical connection terminal is exposed on the housing of the main body; An extractor detachably connected to the main body; the extractor includes a second heater and a third electrical connection terminal; the second heater is configured to heat around at least a part of the aerosol-generating article. One end of the third electrical connection terminal is electrically connected to the second heater, and the other end of the third electrical connection terminal is exposed on the housing of the extractor; Wherein, when the extractor is connected to the main body, the other end of the first electrical connection terminal and the other end of the third electrical connection terminal remain in contact to form an electrical connection, so that the circuit can control the battery cell to supply power to the first heater and / or the second heater.

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