Aerosol generating device

Abstract

The utility model relates to the technical field of atomization, and particularly discloses an aerosol generating device which comprises a heating body, a heating cavity is formed in the heating body, and the heating cavity is provided with an insertion opening for an aerosol generating substrate to be inserted; the circuit board is located outside the heating cavity; the connecting lead is located outside the heating cavity; the connecting lead comprises a wire core and a sleeve; the wire core is arranged in the sleeve, one end of the wire core is connected with the outer side of the heating body, and the other end of the wire core extends in the direction away from the inserting opening and is connected with the circuit board. The wire core is provided with a blocking area, and the blocking area and the sleeve form a blocking structure so as to prevent oil and / or aerosol from flowing to the circuit board through a gap between the wire core and the sleeve. According to the aerosol generating device, the blocking area is arranged on the wire core, the blocking area and the sleeve form a blocking structure, flowing of liquid can be blocked, aerosol generating matrixes are prevented from being directly leaked to the circuit board along the connecting lead, the circuit board is protected against damage, and the service life of the aerosol generating device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, in particular to an aerosol generating device. Background Art

[0002] In the aerosol generating device, a heating body is provided to heat the aerosol generating substrate in order to generate aerosol. A connecting lead is provided between the heating body and the circuit board to supply power for electrical heating. The aerosol generating substrate can be heated in the heating cavity of the heating body, but during the heating process, the oil (such as smoke oil, etc.) overflowing from the aerosol generating substrate and the condensed aerosol may leak out of the heating cavity. If these oils and condensed aerosols leak onto the circuit board, it may cause the circuit board to fail.

[0003] However, in conventional aerosol generating devices, oil and condensed aerosol may enter the sleeve of the connecting lead and leak from the sleeve along the connecting lead to the circuit board. Summary of the invention

[0004] The utility model provides an aerosol generating device for solving the problem that the oil overflowed from the aerosol generating matrix and the condensed aerosol may enter the sleeve of the connecting lead and leak from the sleeve along the connecting lead to the circuit board.

[0005] In one embodiment, an aerosol generating device is provided, comprising:

[0006] A heating body, wherein a heating cavity is formed in the heating body, and the heating cavity has an insertion port for inserting an aerosol generating matrix;

[0007] A circuit board is located outside the heating chamber;

[0008] A connecting lead, the connecting lead is located outside the heating chamber; the connecting lead includes a wire core and a sleeve; the wire core is arranged in the sleeve, one end of the wire core is connected to the outside of the heating body, and the other end extends in a direction away from the insertion port and is connected to the circuit board; the connection between the wire core and the circuit board and the heating body is farther away from the air outlet of the aerosol generating device; the wire core is provided with a barrier area, and the barrier area and the sleeve form a barrier structure to prevent the oil overflowing from the aerosol generating matrix and / or the condensed aerosol from flowing toward the circuit board through the gap between the wire core and the sleeve.

[0009] In one embodiment, the sleeve includes a first port at an end closer to the heating body for the wire core to pass through; the wire core is arranged in a bending structure in the blocking area, and the blocking structure includes a first bending portion; the distance from the first bending portion to the insertion port is smaller than the distance from the first port of the sleeve to the insertion port.

[0010] In one embodiment, the barrier structure also includes a second bending portion, the first bending portion and the second bending portion are connected via the connecting lead, the second bending portion is closer to the first port than the first bending portion, and the distance from the second bending portion to the insertion port is greater than the distance from the first port to the insertion port.

[0011] In one embodiment, when the oil and / or condensed aerosol overflowed from the aerosol generating substrate accumulates at the second bent portion and reaches a full state, the liquid level reaches the first port.

[0012] In one embodiment, the second bent portion is closer to the heating body than the first bent portion.

[0013] In one embodiment, the wire core is made of plastic metal, and / or the sleeve is made of insulating material.

[0014] In one embodiment, a blocking member is provided in the blocking area, and the blocking member blocks the gap between the wire core and the sleeve.

[0015] In one embodiment, the wire core is provided with a plurality of blocking areas.

[0016] In one embodiment, the aerosol generating device also includes a shell, and the heating body, the circuit board and the connecting lead are arranged in the shell; the outer side of the heating body cooperates with the shell to form a sealed leak-proof chamber, and the wire core is connected to the outer side of the heating body in the leak-proof chamber; the circuit board is arranged outside the leak-proof chamber.

[0017] In one embodiment, an insertion channel is formed in the shell, and the insertion channel is used for inserting the aerosol generating matrix; the first end of the insertion channel is connected to the outside, and the second end of the insertion channel is connected to the insertion port of the heating chamber.

[0018] According to the aerosol generating device of the above embodiment, since the barrier area of ​​the wire core and the sleeve form a barrier structure, the oil and / or condensed aerosol overflowed from the aerosol generating matrix can be prevented from entering the gap between the wire core and the sleeve; or when the oil and / or condensed aerosol overflowed from the aerosol generating matrix enters the sleeve of the connecting lead, these liquids can be prevented from flowing toward the circuit board, thereby preventing the overflowed oil and / or condensed aerosol from leaking along the connecting lead onto the circuit board. Thus, the circuit board is protected from damage and the service life of the aerosol generating device is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a heating body and connecting leads in an embodiment;

[0020] Figure 2 A three-dimensional schematic diagram of a heating body and connecting leads in an embodiment;

[0021] Figure 3 A schematic diagram of the internal structure of an aerosol generating device in one embodiment;

[0022] Figure 4 is a three-dimensional schematic diagram of an aerosol generating device in an embodiment;

[0023] Figure 5 is a bottom schematic diagram of an aerosol generating device in one embodiment;

[0024] Figure 6 A schematic diagram of a structure in which the barrier area is a bent structure in an embodiment;

[0025] Figure 7 It is another structural schematic diagram of an embodiment in which the barrier area has a bent structure;

[0026] Figure 8 A cross-sectional schematic diagram of a sealed state in one embodiment;

[0027] Fig. 9 is a cross-sectional schematic diagram of a sealing state in another structure in an embodiment;

[0028] Fig.10 A cross-sectional schematic diagram of a full state in one embodiment;

[0029] Fig.11 It is a cross-sectional schematic diagram of a blocking member provided in a blocking area in an embodiment;

[0030] Fig.12 It is a cross-sectional schematic diagram of an embodiment in which a plurality of blocking members are arranged in the blocking area;

[0031] Fig.13 is a cross-sectional view of an aerosol generating device in one embodiment;

[0032] The reference numerals are as follows:

[0033] an aerosol generating device 1;

[0034] Heating body 10, tube body 11, heating cavity 12, insertion port 13, first heating circuit 14, second heating circuit 15;

[0035] Circuit board 20, hard circuit board part 201, flexible circuit board part 202, power supply 21, working button 22, charging interface 23;

[0036] Connecting lead 30, first connecting lead 301, second connecting lead 302, third connecting lead 303; wire core 31, blocking area 312, sleeve 32, first port 321, second port 322, first bending portion 33, second bending portion 34, blocking member 35;

[0037] an aerosol generating substrate 40;

[0038] Shell 50 , through hole 51 , avoidance port 52 , air outlet 53 , leak-proof chamber 54 , bracket 55 , insertion channel 56 , air flow channel 57 . DETAILED DESCRIPTION

[0039] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0040] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0041] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0042] In one embodiment, an aerosol generating device is provided. The aerosol generating device has a heating body and a circuit board. A heating cavity is formed in the heating body. The heating cavity has an insertion port for inserting an aerosol generating matrix, and the aerosol generating matrix can be heated to form an aerosol. The heating body is electrically connected to the circuit board, and the circuit board is located outside the heating cavity, and can be used to control the heating body for heating. The aerosol generating device also includes a connecting lead, which is located outside the heating cavity. The connecting lead includes a wire core and a sleeve. The wire core is arranged in the sleeve, wherein one end of the wire core is connected to the outside of the heating body, and the other end extends in a direction away from the insertion port and is connected to the circuit board. The wire core is provided with a barrier area, and the barrier area and the sleeve form a barrier structure to prevent the oil overflowing from the aerosol generating matrix and / or the condensed aerosol from flowing to the circuit board through the gap between the wire core and the sleeve. Since the connecting lead is baked by the heating body, the connection between the wire core and the sleeve may no longer be tight in a high temperature environment, and the oil (such as smoke oil, etc.) overflowing from the aerosol generating matrix and the condensed aerosol may enter the gap between the wire core and the sleeve. In this embodiment, the barrier structure prevents the oil overflowing from the aerosol generating matrix and the condensed aerosol from entering the sleeve of the connecting lead, or when the oil overflowing from the aerosol generating matrix and the condensed aerosol enter the sleeve of the connecting lead, these liquids are prevented from flowing toward the circuit board, thereby preventing the oil overflowing from the aerosol generating matrix and the condensed aerosol from directly leaking onto the circuit board along the connecting lead, ensuring that the circuit board is not damaged and increasing the service life of the aerosol generating device.

[0043] Please refer to Figures 1 to 13 In this embodiment, the aerosol generating device 1 mainly includes a heating body 10 , a circuit board 20 and a connecting lead 30 .

[0044] like Figure 1 As shown, the heating body 10 may include a hollow tube 11 and a heating circuit disposed on the surface of the tube 11. The tube 11 may be cylindrical, and the inner hollow area of ​​the tube 11 forms a heating cavity 12, and the heating cavity 12 has an insertion port 13 for inserting the aerosol generating substrate 40.

[0045] like Figure 2As shown, the heating circuit on the surface of the tube body 11 can be connected to the connecting lead 30 to form a loop. The heating circuit can be an electric heating type, and heat energy is generated by the consumption of electric energy through the resistance in the heating circuit. The aerosol generating matrix 40 can be heated directly or indirectly by means of the heating body 10, and the heating body 10 can directly contact the aerosol generating matrix 40 to achieve heating; the heating body 10 can also be used to heat the airflow flowing through to form a hot airflow, and the aerosol generating matrix 40 is heated by the hot airflow when it flows through the aerosol generating matrix 40. In other embodiments, other types of heating structures can also be used, such as electromagnetic heating. An electromagnetic coil can be set on the tube body 11, and electromagnetic induction is used to heat the metal parts buried in the tube body 11 and / or the aerosol generating matrix 40.

[0046] In this embodiment, at least two heating circuits may be provided on the surface of the tube body 11, and each heating circuit is connected to the connecting lead 30 to form a loop. At least two heating circuits can improve the efficiency of heating.

[0047] In this embodiment, the heating body 10 is provided with a first heating circuit 14 and a second heating circuit 15. The heating body 10 is connected with a first connecting lead 301, a second connecting lead 302 and a third connecting lead 303. The first heating circuit 14 is provided between the first connecting lead 301 and the second connecting lead 302, and the first connecting lead 301 and the second connecting lead 302 are connected with the first heating circuit 14 to form a first loop; the second heating circuit 15 is provided between the second connecting lead 302 and the third connecting lead 303, and the second connecting lead 302 and the third connecting lead 303 are connected with the second heating circuit 15 to form a second loop. The first heating circuit 14 and the second heating circuit 15 share a connecting lead 30, which can reduce costs. When more heating circuits are provided on the heating body 10, these heating circuits can also reduce the number of connecting leads 30 by sharing the connecting lead 30, for example, the positive or negative pole of each heating circuit is connected to the same connecting lead 30. Of course, an implementation method in which the connecting lead 30 is not shared between the heating circuits is also feasible. In other embodiments, only one heating circuit may be provided in the heating body 10. In this case, the number of connecting leads 30 required for the heating body 10 is small, and the risk of leakage of oil and / or condensed aerosol is relatively low.

[0048] In this embodiment, the circuit board 20 can be used to control the heating body 10 to heat, so that the heating body 10 can heat the aerosol generating matrix 40, thereby generating an aerosol. In practical applications, the circuit board 20 can also control other parts in the aerosol generating device 1 that need to be powered on and controlled. For example, when an indicator light and a screen are provided on the aerosol generating device 1, the indicator light and the screen can be connected to the circuit board 20 so as to be controlled. The circuit board 20 may include a PCB (Printed Circuit Board) or other types. In this embodiment, the circuit board 20 may be a combination of multiple separate sub-circuit boards, or it may be a complete circuit board 20. When the circuit board 20 includes multiple separate sub-circuit boards, the part directly connected to the connecting lead 30 may have corresponding electronic components; the part directly connected to the connecting lead 30 may also be used only for transfer, that is, it is not directly provided with electronic components, and is connected to electronic components on other sub-circuit boards through conductive lines.

[0049] The power supply 21 and electronic components such as sensors of the aerosol generating device 1 may be connected to the circuit board 20 or arranged on the circuit board 20. The circuit board 20 may be arranged along the height direction (i.e. Figure 3 The circuit board 20 can be fixedly connected to the housing 50 of the aerosol generating device 1 by means of snap connection or screw connection.

[0050] The circuit board 20 can be hard or flexible; the circuit board 20 can also be a combination of hard and flexible, that is, some areas use hard circuit boards and some areas use flexible circuit boards. Figure 3 As shown, the circuit board 20 includes a hard circuit board portion 201 and a flexible circuit board portion 202. The edge of the hard circuit board portion 201 is connected to the flexible circuit board portion 202, and the circuits therein are also connected. The connecting lead 30 is connected to the hard circuit board portion 201. The flexible circuit board 20 is provided with a working button 22, such as Figure 4 As shown, the working button 22 can be set to a desired position and exposed through the through hole 51 on the housing 50. The working button 22 is used to control the working state of the heating body 10, for example, to make the heating body 10 enter the working state or stop the working state.

[0051] In this embodiment, the circuit board 20 may also be connected to a charging interface 23, and the charging interface 23 is electrically connected to the power supply 21 through the circuit board 20. The power supply 21 can store electrical energy and provide electrical energy to the aerosol generating device 1. The bottom of the housing 50 may be provided with an escape opening 52, such as Figure 5As shown, the end of the charging interface 23 is exposed from the bottom of the shell through the avoidance opening 52 at the bottom of the shell, and the charging interface 23 is used to plug in the mobile power supply 21 or the mains to charge the power supply 21. In this embodiment, the avoidance opening 52 at the bottom of the shell 50 can be combined with the air inlet into one opening. The bottom referred to in this application is the side of the aerosol generating device 1 away from the air outlet 53, and the top is the side of the aerosol generating device 1 close to the air outlet 53.

[0052] In this embodiment, the wire core 31 of the connecting lead 30 is the part of the connecting lead 30 that realizes the conductive function. The wire core 31 is arranged in the sleeve 32 and is wrapped by the sleeve 32. The sleeve 32 can wrap the wire core 31 as much as possible to protect the wire core 31. The sleeve 32 includes a first port 321 and a second port 322. The wire core 31 passes through the two ports of the sleeve 32 to be electrically connected to the heating body 10 and the circuit board 20. Among them, the first port 321 is a port closer to the heating body 10, and the second port 322 is a port closer to the circuit board 20.

[0053] The wire core 31 can be made of any conductive material, such as a conductive metal. The sleeve 32 used to protect the wire core 31 can provide insulation protection for the insulating material, such as plastic. In addition, the thermal conductivity of the sleeve 32 can also be weaker than that of the wire core 31, providing a certain degree of thermal insulation for the wire core 31, thereby ensuring a more stable electrical connection state.

[0054] The connection point between the connecting lead 30 and the circuit board 20 is farther from the air outlet 53 of the aerosol generating device 1 than the heating body 10. In this embodiment, the connecting lead 30 is connected to the hard circuit board part 201, and the hard circuit board part 201 is closer to the bottom of the aerosol generating device 1 than the flexible circuit board part 202.

[0055] The blocking area 312 can be set at any position of the portion of the wire core 31 where the sleeve 32 is sleeved. As long as a blocking structure is formed between the two ends of the sleeve 32, the oil and / or condensed aerosol entering from one side of the heating body 10 can be blocked. In practical applications, if other openings are formed on the sleeve 32 of the connecting lead 30, the blocking area 312 can be set in a direction closer to the heating body 10 than the opening to prevent the oil and / or condensed aerosol from leaking from the opening.

[0056] In this embodiment, the wire core 31 may be provided with a plurality of blocking areas 312, and a certain interval may be provided between the plurality of blocking areas 312, and the blocking areas 312 will form a plurality of blocking structures with the sleeve 32. When some of the blocking structures fail, the remaining blocking structures can continue to function, and have higher reliability.

[0057] In this embodiment, the wire core 31 is configured as a bent structure in the blocking area 312, and the blocking structure includes a first bent portion 33; the distance from the first bent portion 33 to the insertion port 13 is smaller than the distance from the first end 321 of the sleeve 32 to the insertion port 13. Figure 6 As shown, in the direction shown, the first bend 33 is higher than the first port 321 of the sleeve 32. When the user uses the aerosol generating device 1, the insertion port 13 will be located above the gravity direction. Under the action of gravity, the oil and / or condensed aerosol in the connecting lead 30 (i.e., between the wire core 31 and the sleeve 32) will not be able to cross the first bend 33, so that the oil and / or condensed aerosol will not leak along the inside of the connecting lead 30 to the circuit board 20. In addition, the first port 321 of the sleeve 32 can be oriented away from the insertion port 13, and the oil and / or condensed aerosol will not easily enter the connecting lead 30 through the first port 321. The method of setting the wire core 31 as a bending structure is easy to produce and manufacture. The first bend 33 only needs to bend the connecting lead 30 once at least, and the structure is simple. The liquid blocked by the barrier structure is mainly oil and / or condensed aerosol. Therefore, for ease of understanding, this embodiment directly uses oil and / or condensed aerosol as examples of liquids for explanation. It can be understood that if other liquids flow into the interior of the connecting lead 30, they can also be blocked.

[0058] In this embodiment, the wire core 31 of the connecting lead 30 can be made of plastic metal, and the plastic metal includes but is not limited to one of the conductive metal materials with plasticity such as gold, silver, copper, aluminum, or alloys containing these metals. The wire core 31 of the plastic metal has plasticity and can be bent and plastic while still maintaining a deformed state. By using plastic metal as the wire core 31 of the connecting lead 30, it can be ensured that the connecting lead 30 maintains its shape well, thereby forming a long-term effect of preventing oil and / or condensed aerosol from leaking to the circuit board 20.

[0059] In one embodiment, an aerosol generating device 1 is provided. The difference between the aerosol generating device 1 and the above-mentioned embodiment is that the barrier structure also includes a second bending portion 34, and the second bending portion 34 can accumulate oil and / or condensed aerosol to form a seal to prevent the aerosol from reaching the circuit board 20 through the connecting lead 30.

[0060] In this embodiment, the first bending portion 33 and the second bending portion 34 are connected by a connecting lead 30, and the second bending portion 34 is closer to the first port 321 than the first bending portion 33, that is, the oil and / or condensed aerosol entering from the first port 321 will first flow to the second bending portion 34, and may reach the first bending portion 33 after passing through the second bending portion 34.

[0061] The distance from the second bending portion 34 to the insertion port 13 is greater than the distance from the first port 321 to the insertion port 13. Figure 7 As shown, the insertion port 13 of the aerosol generating device 1 is above the direction shown in the figure. In the direction shown in the figure, the second bend portion 34 is lower than the first port 321 of the sleeve 32, and is also lower than the first bend portion 33. The wire core 31 of the connecting lead 30 forms an S-shaped bend structure. Since the second bend portion 34 is lower than the first bend portion 33, the oil and / or condensed aerosol can flow to the position of the second bend portion 34 after entering from the first port 321, but cannot cross the first bend portion 33. The two ends of the second bend portion 34 form a communicating vessel, and the liquid level of the oil and / or condensed aerosol around the second bend portion 34 will remain level. As shown in FIG. Figure 8 As shown, the oil and / or condensed aerosol can accumulate at the second bend portion 34 and form a sealed state. In the sealed state, the spaces at both ends of the oil and / or condensed aerosol are separated. After the second bend portion 34 forms a sealed state, it can prevent non-liquid aerosol from directly reaching the circuit board 20 through the connecting lead 30, thereby further protecting the circuit board 20. In other embodiments, the wire core 31 can be bent in more sections to form more barrier areas 312. Multiple barrier structures can improve the effectiveness of blocking the leakage of oil and / or condensed aerosol, thereby better protecting the circuit board 20. In this embodiment, the first port 321 of the sleeve 32 can face the direction of the insertion port 13, and the oil and / or condensed aerosol can easily pass through the first port 321 to enter the second bend portion 34 to form a seal.

[0062] In other embodiments, the wire core 31 of the connecting lead 30 may also be bent into other shapes. Fig. 9 As shown, the wire core 31 of the connecting lead 30 can be bent counterclockwise twice to form a runway-like state. In the direction shown, the lower part of the runway-shaped bending structure serves as the first bending portion 33, which can accumulate oil and / or condensed aerosol and form a seal; the upper part of the runway-shaped bending structure is higher than the first port 321 of the sleeve 32, serving as the second bending portion 34 to prevent oil and / or condensed aerosol from passing over.

[0063] In this embodiment, the oil and / or condensed aerosol can accumulate in the second bent portion 34 to reach a full state. When the oil and / or condensed aerosol reaches a full state, the liquid level of the oil and / or condensed aerosol reaches the first port 321. Fig.10 As shown, when the liquid level of the oil and / or condensed aerosol has reached the first port 321 of the sleeve 32, the accumulated oil and / or condensed aerosol in the liquid accumulation section has reached the maximum level, and more oil and / or condensed aerosol will no longer enter the gap between the core 31 and the sleeve 32, forming a blockage.

[0064] In this embodiment, the second bent portion 34 is closer to the heating body 10 than the first bent portion 33. The area close to the heating body 10 will have a higher temperature due to the baking of the heating body 10. Fig.10 , the first port 321 of the sleeve 32 is arranged beside the second bending portion 34, which is close to the position of the heating body 10. When the oil and / or the condensed aerosol accumulate in the second bending portion 34 and reach a full state or accumulate to a certain extent, the oil and / or the condensed aerosol accumulated near the first port 321 of the sleeve 32 can be atomized due to the high temperature baking of the heating body 10, thereby reducing the oil and / or the condensed aerosol accumulated in the wire core 31 and the sleeve 32. The oil and / or the condensed aerosol in the wire core 31 and the sleeve 32 can be accumulated, and can also be consumed due to the baking of the heating body 10, and a balanced state can be reached. In the balanced state, the oil and / or the condensed aerosol in the connecting lead 30 can form a sealed state to prevent the aerosol from reaching the area of ​​the circuit board 20 along the connecting lead 30. It is also not easy to accumulate excessive oil and / or condensed aerosol, so that the oil and / or condensed aerosol in the connecting lead 30 is not easy to leak along the connecting lead 30 to the circuit board 20 during use.

[0065] In one embodiment, an aerosol generating device 1 is provided. The difference between the aerosol generating device 1 and the above-mentioned embodiment is that a blocking member 35 is provided in the blocking area 312, and the gap between the wire core 31 and the sleeve 32 is blocked by the blocking member 35 to block the liquid from flowing in the gap between the wire core 31 and the sleeve 32. The blocking member 35 is provided in the blocking area 312 to achieve blocking, which is not restricted by the shape of the connecting lead 30, and the structure is relatively simple and easy to produce.

[0066] The blocking member 35 may be a material that is impermeable to liquids, such as a colloid, etc. The blocking member 35 may completely fill the position of the sleeve 32 in the blocking area 312, thereby forming a blocking structure. Fig.11 As shown, the blocking member 35 can be arranged at the first port 321 of the sleeve 32, and a barrier structure is formed at the first port 321, which can prevent oil and / or condensed aerosol from entering the gap between the core 31 and the sleeve 32. In other embodiments, the blocking member 35 can be arranged at any position between the first port 321 and the second port 322 of the sleeve 32, and a barrier structure can be formed with the sleeve 32 at any position, which can prevent oil and / or condensed aerosol from leaking to the circuit board 20 through the connecting lead 30. In other embodiments, a plurality of blocking members 35 can be provided, such as Fig.12 As shown, a plurality of blocking members 35 are arranged at intervals along the line core 31 to form local blocking at different positions with high reliability.

[0067] In one embodiment, different barrier structures may also be formed on the connecting lead 30 at the same time, for example Fig.11 and Fig.12 As shown. The wire core 31 may be provided with a blocking member 35 while being provided with a bending structure. In practical applications, if only the blocking member 35 is provided to form a blocking structure, the wire core 31 may not be bent into the specific shapes in the above-mentioned embodiments.

[0068] In one embodiment, an aerosol generating device 1 is provided. The difference between the aerosol generating device 1 and the above-mentioned embodiment is that a sealed leak-proof chamber 54 is formed around the heating body 10 to further reduce the possibility of leakage of oil and / or condensed aerosol.

[0069] like Fig.13 Shown, indicated Figure 4 In the cross-sectional view along line AA, there is a gap between the outer side of the tube body 11 of the heating body 10 and the shell 50, and an independent leakproof chamber 54 is formed between the tube body 11 and the shell 50. The leakproof chamber 54 is on the outer side of the heating body 10, and is therefore isolated from the heating chamber 12 of the heating body 10, which can prevent the oil and / or condensed aerosol from entering the leakproof chamber 54. The wire core 31 of the connecting lead 30 is connected to the outer side of the heating body 10 in the leakproof chamber 54, thereby reducing the possibility of the oil and / or condensed aerosol contacting the connecting lead 30, and the leakproof effect is better. In addition, even if the sealing of the leakproof chamber 54 is reduced due to thermal expansion and contraction and the oil and / or condensed aerosol enter, a part of the oil and / or condensed aerosol can be accumulated in the relatively sealed leakproof chamber 54 to prevent it from easily leaking to other areas. The leak-proof chamber 54 also allows the outer side of the heating body 10 to be separated from the shell 50 by a certain distance, thereby achieving a heat insulation effect and preventing a large amount of heat from being conducted to the shell 50 .

[0070] In this embodiment, the housing 50 can be composed of multiple parts, and the combined housing 50 has a stable and unique shape, and the parts that make up the housing 50 cannot rotate or stretch during use. Of course, some structures in the housing 50 can be disassembled, for example, the power supply 21 can be replaced by disassembling part of the housing 50.

[0071] The heating body 10 can be arranged on the bracket 55, and one end of the leakproof chamber 54 can be sealed by the bracket 55 and the housing 50. The connecting lead 30 can pass through the leakproof chamber 54 through the bracket 55 and finally be connected to the circuit board 20.

[0072] In this embodiment, a plug-in channel 56 is also formed in the shell 50, and the plug-in channel 56 is used for inserting the aerosol generating matrix 40; the first end of the plug-in channel 56 is connected to the air outlet 53; and the second end of the plug-in channel 56 is connected to the heating chamber 12. When the aerosol generating matrix 40 is inserted, it passes through the air outlet 53 and the plug-in channel 56 in sequence and reaches the heating chamber 12. The shell 50 is in contact with the end of the heating body 10 near the air outlet 53, so that the end of the leak-proof chamber 54 near the air outlet 53 is closed, and the liquid oil and / or condensed aerosol is prevented from leaking from the area between the plug-in channel 56 and the heating chamber 12. The other end of the heating chamber 12 is connected to the air flow channel 57. When suction is performed, the gas enters the air flow channel 57 from the air inlet, and arrives at the heating chamber 12 in the heating body 10 along the air flow channel 57, and is discharged from the air outlet 53 after passing through the plug-in channel 56.

[0073] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An aerosol generating device, characterized in that: include: A heating body, wherein a heating cavity is formed in the heating body, and the heating cavity has an insertion port for inserting an aerosol generating matrix; A circuit board is located outside the heating chamber; A connecting lead, the connecting lead is located outside the heating chamber; the connecting lead includes a wire core and a sleeve; the wire core is arranged in the sleeve, one end of the wire core is connected to the outside of the heating body, and the other end extends in a direction away from the insertion port and is connected to the circuit board; the wire core is provided with a barrier area, and the barrier area and the sleeve form a barrier structure to prevent the oil overflowing from the aerosol generating matrix and / or the condensed aerosol from flowing toward the circuit board through the gap between the wire core and the sleeve.

2. The aerosol generating device according to claim 1, characterized in that The sleeve includes a first port at an end close to the heating body for the wire core to pass through; the wire core is arranged in a bending structure in the blocking area, and the blocking structure includes a first bending portion, and the distance from the first bending portion to the insertion port is smaller than the distance from the first port of the sleeve to the insertion port.

3. The aerosol generating device according to claim 2, characterized in that The barrier structure also includes a second bending portion, the first bending portion and the second bending portion are connected via the connecting lead, the second bending portion is closer to the first port than the first bending portion, and the distance from the second bending portion to the insertion port is greater than the distance from the first port to the insertion port.

4. The aerosol generating device according to claim 3, characterized in that When the oil and / or condensed aerosol overflowed from the aerosol generating substrate accumulates at the second bent portion and reaches a full state, the liquid level reaches the first port.

5. The aerosol generating device according to claim 3, characterized in that The second bent portion is closer to the heating body than the first bent portion.

6. The aerosol generating device according to claim 2, characterized in that The wire core is made of plastic metal, and / or the sleeve is made of insulating material.

7. The aerosol generating device according to claim 1, wherein: A blocking piece is arranged in the blocking area, and the blocking piece blocks the gap between the wire core and the sleeve.

8. The aerosol generating device according to any one of claims 1 to 7, characterized in that: The wire core is provided with a plurality of blocking areas.

9. The aerosol generating device according to claim 1, wherein: The aerosol generating device also includes a shell, and the heating body, the circuit board and the connecting lead are arranged in the shell; a sealed leak-proof chamber is formed between the outer side of the heating body and the shell, and the wire core is connected to the outer side of the heating body in the leak-proof chamber; the circuit board is arranged outside the leak-proof chamber.

10. The aerosol generating device according to claim 9, characterized in that An insertion channel is formed in the shell, and the insertion channel is used for inserting the aerosol generating matrix. The first end of the insertion channel is connected to the outside, and the second end of the insertion channel is connected to the insertion port of the heating chamber.

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