Aerosol delivery device

Abstract

The utility model provides an aerosol delivery device which comprises a heat insulation pipe, the top of the heat insulation pipe is provided with an insertion port used for being connected with a heat-not-burn product in an inserted mode, and the bottom of the heat insulation pipe is provided with an air inlet used for being communicated with outside air. The fixing pipe is provided with an upstream, a downstream and a containing cavity located between the upstream and the downstream, the containing cavity is used for containing at least one part of the heating non-combustion product, the top end of the fixing pipe abuts against the heat insulation pipe, the downstream of the containing cavity communicates with the insertion opening, and a first communication channel is formed between the fixing pipe and the heat insulation pipe; the bottom end of the flow guide pipe abuts against the heat insulation pipe, a second communication channel is formed between the top end of the flow guide pipe and the heat insulation pipe, and a first airflow channel communicated between the air inlet and the second communication channel is formed between the heat insulation pipe and the flow guide pipe. A second airflow channel communicated between the second communication channel and the first communication channel is formed between the flow guide pipe and the fixed pipe; and the heater is supported and fixed in the fixed pipe. According to the utility model, the cooling effect is improved, and the heat utilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol delivery device. Background Technology

[0002] Currently, aerosol delivery devices can heat heat-not-burn products (such as non-combustible tobacco products) at relatively low temperatures (e.g., 250℃~500℃), thereby releasing tobacco-flavored aerosols that are delivered to consumers without combustion, thus replacing combustible tobacco products. In existing technologies, aerosol delivery devices can reach temperatures exceeding 300℃ when heating heat-not-burn products. However, the limited space within the aerosol delivery device allows heat from the heating element to easily transfer through the heat insulation tube to the outer casing where the user holds the product. This not only wastes heat and increases energy consumption but also results in a high outer casing temperature, causing burns to the user's hands and negatively impacting the user experience. Summary of the Invention

[0003] To overcome the problems of high insulation tube temperature and low heat utilization efficiency when heating non-combustible products in existing aerosol generating devices, this utility model provides an aerosol delivery device.

[0004] In view of the above technical problems, this utility model provides an aerosol delivery device, comprising:

[0005] The heat insulation tube has an interface at the top for inserting heated non-combustible products and an air inlet at the bottom for connecting to the outside air.

[0006] A fixed tube has an upstream end, a downstream end, and a receiving cavity located between the upstream and downstream ends, the receiving cavity being used to receive at least a portion of a heat-resistant non-combustible article, the top end of the fixed tube abutting the heat insulation tube, the downstream end of the receiving cavity communicating with the insertion interface, and the bottom end of the fixed tube forming a first communicating channel with the receiving cavity between the heat insulation tube and the fixed tube.

[0007] A guide pipe is disposed between the heat insulation pipe and the fixed pipe. The bottom end of the guide pipe abuts against the heat insulation pipe, and the top end of the guide pipe forms a second connecting channel with the heat insulation pipe. A first airflow channel connecting the air inlet and the second connecting channel is formed between the heat insulation pipe and the guide pipe. A second airflow channel connecting the second connecting channel and the first connecting channel is formed between the guide pipe and the fixed pipe.

[0008] The heater is supported and fixed inside the fixed tube. External airflow flows through the air inlet, the first airflow channel, the second connecting channel, the second airflow channel, and the first connecting channel to the heater and raise its temperature.

[0009] In this invention, a guide pipe is disposed between the heat insulation pipe and the fixed pipe, forming a first airflow channel and a second airflow channel that are interconnected between the heat insulation pipe and the fixed pipe. When the user draws in the heated non-combustible product, the cooler outside air first flows through the first airflow channel, absorbing heat from the heat insulation pipe while being less affected by heat from the fixed pipe, thus improving the cooling effect on the heat insulation pipe and enhancing the user experience. Then, the air flows through the second airflow channel, absorbing heat from the fixed pipe and being preheated by the heat from the fixed pipe, thereby improving heat utilization efficiency. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of an aerosol delivery device provided in an embodiment of the present invention.

[0012] Figure 2 This is an exploded structural diagram of an aerosol delivery device provided in an embodiment of the present invention.

[0013] Figure 3 This is a cross-sectional structural schematic diagram of an aerosol delivery device provided in an embodiment of the present invention.

[0014] Figure 4 This is a cross-sectional structural schematic diagram of an aerosol delivery device provided in another embodiment of the present invention.

[0015] Figure 5 This is a cross-sectional structural schematic diagram of an aerosol delivery device provided in another embodiment of the present invention.

[0016] The reference numerals in the accompanying drawings are as follows:

[0017] 100. Insulation tube; 110. Insertion interface; 120. Air inlet; 130. Outer tube; 140. Inner tube; 150. Top cover; 151. First protrusion; 160. Base; 161. Second protrusion; 170. Insulation cavity; 200. Heated non-combustible product; 300. Fixing tube; 310. Receiving cavity; 320. First connecting channel; 400. Guide tube; 410. First airflow channel; 420. Second airflow channel; 430. Second connecting channel; 500. Heater; 510. Air outlet; 520. Connecting port; 530. Heating cavity; 600. Outer shell; 610. Opening; 620. Charging port; 630. Power supply. Detailed Implementation

[0018] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] like Figures 1 to 5 As shown, this embodiment of the present invention provides an aerosol delivery device, comprising:

[0020] The heat insulation pipe 100 has an interface 110 at the top for inserting a heated non-combustible product 200, and an air inlet 120 at the bottom for connecting to the outside air.

[0021] The fixed tube 300 has an upstream end, a downstream end, and a receiving cavity 310 located between the upstream and downstream ends. The receiving cavity 310 is used to receive at least a portion of the heat-resistant non-combustible article 200. The top end of the fixed tube 300 abuts against the heat insulation tube 100. The downstream end of the receiving cavity 310 communicates with the insertion interface 110. The bottom end of the fixed tube 300 and the heat insulation tube 100 form a first communication channel 320 communicating with the receiving cavity 310.

[0022] A guide pipe 400 is disposed between the heat insulation pipe 100 and the fixed pipe 300. The bottom end of the guide pipe 400 abuts against the heat insulation pipe 100. The top end of the guide pipe 400 and the heat insulation pipe 100 form a second connecting channel 430. The heat insulation pipe 100 and the guide pipe 400 form a first airflow channel 410 connecting the air inlet 120 and the second connecting channel 430. The guide pipe 400 and the fixed pipe 300 form a second airflow channel 420 connecting the second connecting channel 430 and the first connecting channel 320.

[0023] The heater 500 is supported and fixed inside the fixed tube 300. External airflow flows through the air inlet 120, the first airflow channel 410, the second connecting channel 430, the second airflow channel 420 and the first connecting channel 320 to the heater 500 and the temperature is raised.

[0024] Understandably, "upstream" or "downstream" refers to the upstream or downstream direction of the airflow or aerosol flow. The insertion port 110 is correspondingly provided with the receiving cavity 310, allowing the heated non-combustible product 200 to be inserted into the receiving cavity 310 via the insertion port 110. The first connecting channel 320 can be located at the bottom end of the fixed tube 300, or at the bottom end of the heat insulation tube 100, or at the bottom ends of both the fixed tube 300 and the heat insulation tube 100, as long as it connects the receiving cavity 310 and the second airflow channel 420. The second connecting channel 430 can be located at the top end of the guide tube 400, or at the top end of the heat insulation tube 100, or at the top ends of both the guide tube 400 and the heat insulation tube 100, as long as it connects the first airflow channel 410 and the second airflow channel 420. The fixed tube 300 is in direct contact with the heater 500, so when the aerosol delivery device is used, the temperature on the fixed tube 300 is generally higher than the temperature on the heat insulation tube 100.

[0025] In this embodiment, the guide pipe 400 is disposed between the heat insulation pipe 100 and the fixed pipe 300, and a first airflow channel 410 and a second airflow channel 420 are formed between the heat insulation pipe 100 and the fixed pipe 300 respectively. When the user draws in the heated non-combustible product 200, the cooler outside air can first flow through the first airflow channel 410, absorbing heat from the heat insulation pipe 100 in the first airflow channel 410, while being less affected by the heat from the fixed pipe 300, thereby improving the cooling effect on the heat insulation pipe 100 and improving the user experience. Then it flows through the second airflow channel 420, absorbing heat from the fixed pipe 300 in the second airflow channel 420, and can be preheated by the heat from the fixed pipe 300, thereby improving the heat utilization efficiency.

[0026] In one embodiment, such as Figure 4 As shown, the heat insulation pipe 100 includes an outer pipe 130, an inner pipe 140, a top cover 150 connected to the top ends of the outer pipe 130 and the inner pipe 140, and a base 160 connected to the bottom ends of the outer pipe 130 and the inner pipe 140. A heat insulation cavity 170 is formed between the outer pipe 130 and the inner pipe 140. The insertion interface 110 is disposed on the top cover 150, and the air inlet 120 is disposed on the base 160. Understandably, the inner pipe 140 can be made of a high-temperature resistant material with low thermal conductivity, thereby reducing heat absorption. The outer pipe 130 can be made of a metal material with high thermal conductivity, thereby allowing heat on the outer pipe 130 to dissipate quickly into the air, preventing the user from getting burned while holding it and improving the user experience.

[0027] In one embodiment, the heat insulation pipe 100 further includes a heat insulation element disposed in the heat insulation cavity 170. The heat insulation element includes, but is not limited to, one or more materials such as air or heat insulation cotton.

[0028] In one embodiment, such as Figure 4 As shown, the top end of the fixed tube 300 abuts against the bottom end of the top cover 150, the first connecting channel 320 is located between the bottom end of the fixed tube 300 and the top end of the base 160, the guide tube 400 is disposed between the inner tube 140 and the fixed tube 300, the bottom end of the guide tube 400 abuts against the top end of the base 160, the second connecting channel 430 is located between the top end of the guide tube 400 and the bottom end of the top cover 150, and the first airflow channel 410 is located between the inner tube 140 and the guide tube 400.

[0029] In one embodiment, such as Figure 5 As shown, the heat insulation tube 100 includes a vacuum tube, a top cover 150 connected to the top end of the vacuum tube, and a base 160 connected to the bottom end of the vacuum tube. The insertion interface 110 is disposed on the top cover 150, and the air inlet 120 is disposed on the base 160. Understandably, the vacuum tube is used for heat insulation, thereby reducing the temperature transferred to the outer wall of the vacuum tube and improving the user experience.

[0030] In one embodiment, such as Figure 5 As shown, the top end of the fixed tube 300 abuts against the bottom end of the top cover 150, the first connecting channel 320 is located between the bottom end of the fixed tube 300 and the top end of the base 160, the guide tube 400 is disposed between the vacuum tube and the fixed tube 300, the bottom end of the guide tube 400 abuts against the top end of the base 160, the second connecting channel 430 is located between the top end of the guide tube 400 and the bottom end of the top cover 150, and the first airflow channel 410 is located between the vacuum tube and the guide tube 400.

[0031] In one embodiment, such as Figures 3 to 5As shown, the bottom end of the top cover 150 is provided with a plurality of first protrusions 151 with gaps. The two sides of the plurality of first protrusions 151 respectively abut against the inner sidewall of the top end of the guide pipe 400 and the outer sidewall downstream of the receiving cavity 310. The gaps between the plurality of first protrusions 151 and the top end of the guide pipe 400 together form a plurality of second connecting channels 430. Understandably, the plurality of first protrusions 151 provide support between the guide pipe 400 and the receiving cavity 310, thereby ensuring the stability of the guide pipe 400 and the receiving cavity 310. Simultaneously, the gaps between the plurality of first protrusions 151 form the plurality of second connecting channels 430, thereby ensuring the communication between the first airflow channel 410 and the second airflow channel 420.

[0032] In one embodiment, such as Figures 3 to 5 As shown, the top of the base 160 is provided with a plurality of second protrusions 161 with gaps. The tops of the plurality of second protrusions 161 abut against the bottom end of the fixing tube 300. The gaps between the plurality of second protrusions 161 and the bottom end of the fixing tube 300 together form a plurality of first communicating channels 320. Understandably, the plurality of second protrusions 161 provide support to the bottom end of the fixing tube 300, restricting the downward movement of the fixing tube 300 and ensuring the stability of the fixing tube 300. Simultaneously, the gaps between the plurality of second protrusions 161 form the plurality of first communicating channels 320, thereby ensuring communication between the second airflow channel 430 and the receiving cavity 310.

[0033] In one embodiment, such as Figures 3 to 5 As shown, the heater 500 is provided with an air outlet 510 for connecting the receiving cavity 310, a connecting port 520 for connecting the first connecting channel 320, and a heating cavity 530 for heating air to bake the heated non-combustible product 200, which is connected between the air outlet 510 and the connecting port 520.

[0034] In one embodiment, such as Figures 3 to 5 As shown, the diameter d1 of the top end of the guide pipe 400 is smaller than the diameter d2 of the bottom end of the guide pipe 400, thus forming a top-to-bottom guide opening, which guides the installation of the fixing pipe 300 and facilitates its installation. Furthermore, from the air inlet 120 to the first connecting channel 320, the distance between the guide pipe 400 and the heat insulation pipe 100 gradually decreases. The airflow velocity in the first airflow channel 410 is slower near the air inlet 120, allowing for sufficient preheating before quickly entering the second connecting channel 420.

[0035] In one embodiment, such as Figures 1 to 5 As shown, the aerosol delivery device also includes a housing 600, which has an opening 610 for inserting the heated non-combustible article 200 and a charging port 620 communicating with the air inlet 120. Understandably, the housing 600 can be located outside the heat insulation tube 100 to prevent dust or debris from entering the interior. The housing 600 can also be used by the user to hold the device, preventing burns during use. The opening 610 can be formed at the top of the housing 600, and the charging port 620 can be formed on the side wall of the housing 600. The charging port 620 has an assembly gap to allow air to pass through. The charging port 620 communicates with the air inlet 120, ensuring that outside air can enter the air inlet 120.

[0036] In one embodiment, such as Figures 3 to 5 As shown, the aerosol delivery device also includes a power supply 630 disposed within the housing 600 and used to provide energy to the heater 500.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aerosol delivery device, characterized by, The application relates to a heat insulation pipe, a fixed pipe, a flow guide pipe and a heating device. The heat insulation pipe is provided with a plug-in port for plugging a heat-not-burn product at the top and an air inlet for communicating with external air at the bottom. The fixed pipe is provided with an upstream, a downstream and a containing cavity between the upstream and the downstream, the containing cavity is used for containing at least a part of the heat-not-burn product, the top end of the fixed pipe abuts against the heat insulation pipe, the downstream of the containing cavity communicates with the plug-in port, and the bottom end of the fixed pipe and the heat insulation pipe form a first communication channel communicating with the containing cavity. The flow guide pipe is arranged between the heat insulation pipe and the fixed pipe, the bottom end of the flow guide pipe abuts against the heat insulation pipe, the top end of the flow guide pipe and the heat insulation pipe form a second communication channel, the heat insulation pipe and the flow guide pipe form a first air flow channel communicating between the air inlet and the second communication channel, and the flow guide pipe and the fixed pipe form a second air flow channel communicating between the second communication channel and the first communication channel. The heating device is supported and fixed in the fixed pipe, and external air flow passes through the air inlet, the first air flow channel, the second communication channel, the second air flow channel and the first communication channel to the heating device to be lifted in temperature.

2. An aerosol delivery device according to Claim 1, wherein, The heat insulation pipe comprises an outer pipe, an inner pipe, a top cover connected to the top end of the outer pipe and the inner pipe, and a base connected to the bottom end of the outer pipe and the inner pipe, the heat insulation cavity is formed between the outer pipe and the inner pipe, the plug-in port is arranged on the top cover, and the air inlet is arranged on the base.

3. An aerosol delivery device according to Claim 2, wherein, The heat insulation pipe further comprises a heat insulation member arranged in the heat insulation cavity.

4. An aerosol delivery device according to claim 2, wherein, The top end of the fixed pipe abuts against the bottom end of the top cover, the first communication channel is located between the bottom end of the fixed pipe and the top end of the base, the flow guide pipe is arranged between the inner pipe and the fixed pipe, the bottom end of the flow guide pipe abuts against the top end of the base, the second communication channel is located between the top end of the flow guide pipe and the bottom end of the top cover, and the first air flow channel is located between the inner pipe and the flow guide pipe.

5. The aerosol delivery device of Claim 1, wherein, The heat insulation pipe comprises a vacuum pipe, a top cover connected to the top end of the vacuum pipe, and a base connected to the bottom end of the vacuum pipe, the plug-in port is arranged on the top cover, and the air inlet is arranged on the base.

6. An aerosol delivery device according to claim 5, wherein, The top end of the fixed pipe abuts against the bottom end of the top cover, the first communication channel is located between the bottom end of the fixed pipe and the top end of the base, the flow guide pipe is arranged between the vacuum pipe and the fixed pipe, the bottom end of the flow guide pipe abuts against the top end of the base, the second communication channel is located between the top end of the flow guide pipe and the bottom end of the top cover, and the first air flow channel is located between the vacuum pipe and the flow guide pipe.

7. An aerosol delivery device according to any one of claims 2 to 6, wherein, The bottom end of the top cover is provided with a plurality of first protrusions with gaps, the two sides of the plurality of first protrusions abut against the inner side wall of the top end of the flow guide pipe and the outer side wall of the downstream of the containing cavity respectively, and the gaps between the plurality of first protrusions and the top end of the flow guide pipe jointly form a plurality of second communication channels.

8. An aerosol delivery device according to any one of claims 2 to 6, wherein, The top end of the base is provided with a plurality of second protrusions with gaps, the top ends of the plurality of second protrusions abut the bottom end of the fixed tube, and the gaps between the plurality of second protrusions and the bottom end of the fixed tube jointly form a plurality of first communication channels.

9. The aerosol delivery device of Claim 1, wherein, The heating device is provided with an air outlet for communicating with the accommodating cavity, a communication port for communicating with the first communication channel, and a heating cavity for heating air to bake the heat-not-burn product and communicating between the air outlet and the communication port.

10. The aerosol delivery device of Claim 1, wherein, The diameter d1 of the top end of the flow guide tube is less than the diameter d2 of the bottom end of the flow guide tube.

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