CN206923684U - Low temperature smoking set - Google Patents

Abstract

The utility model discloses a kind of low temperature smoking set, the inner tube being fixed on including outer tube and suit in outer tube, gap is left between the outer tube and inner tube turns into inlet channel, the outer tube bottom is provided with the air admission hole connected with inlet channel, said inner tube is provided with cell body in one end of air admission hole, the cigarette bullet room for inserting for cigarette and being connected with inlet channel is provided with the other end, the cigarette bullet interior is provided with the heater for being heated to cigarette and being electrically connected with cell body.The utility model by by heat unnecessary in smoking set it is directional guide to long and narrow inlet channel, and the transfer of heat is realized under the cooling effect of charge air flow, heat is avoided to continue to shift to outer tube and cause the too high situation of surface temperature to occur, the heat that charge air flow absorbs is again introduced into cigarette, so that the nebulization efficiency of tobacco-containing material is higher, heat energy caused by heater element is taken full advantage of.

Description

low temperature smoking set

technical field

The utility model relates to the technical field of smoking articles, in particular to a low-temperature smoking article.

Background technique

Traditional cigarettes need to be ignited by an open flame to produce tobacco smoke. Tobacco releases thousands of harmful mixtures during high-temperature combustion. The mixture is composed of volatiles, semi-volatiles and non-volatiles present in the particles, such as carbon monoxide , phenols, aldehydes, nicotine (nicotine), tobacco tar, etc., while electronic atomization e-liquid, low-temperature baking or non-burning tobacco can effectively reduce the production of harmful substances.

Although the electronic cigarettes and low-temperature cigarettes currently on the market can reduce the generation of harmful substances in the smoking process, they still need to be further improved in terms of user experience. The specific performance is: when the cigarette is heated, the temperature on the surface of the smoking device will rise sharply. If the user pumps for a little longer, the surface temperature can be as high as 50-60°C, which will inevitably cause hot hands. Some existing conventional heat insulation solutions are to install heat insulation layers such as airgel and felt on the inside of the shell. This way of restricting the outward diffusion of heat is effective at the initial stage of heating, but as the heating time becomes longer, because The heat cannot be effectively transferred, and can only be gradually diffused to the outer casing, resulting in a continuous rise in surface temperature and failing to achieve a reliable heat insulation effect.

Utility model content

The technical problem to be solved by the utility model is to provide a low-temperature smoking set aiming at the deficiencies of the prior art.

In order to solve the above-mentioned technical problems, the low-temperature smoking set provided by the utility model includes an outer tube and an inner tube fixed inside the outer tube. There is an air intake hole connected to the air intake passage, a battery body is installed in one end of the inner tube close to the air intake hole, and a cartridge chamber for inserting cigarettes and communicating with the air intake passage is provided in the other end. A heating device that heats the cigarette and is electrically connected to the battery body is provided in the pod chamber.

Further, the gap between the outer tube and the inner tube is kept below 0.5mm.

Further, the outer wall of the inner tube is provided with a plurality of annular protrusions arranged at intervals in the axial direction, and there is a gap between the top surface of the annular protrusions and the outer tube.

Further, in a preferred solution, a heat-insulating tube with an open top is inserted in the pod chamber, and the open end of the heat-insulating tube protrudes from the inner tube and is sealedly connected with the outer tube. There is a gap between them to become an air passage, the top wall of the inner tube is provided with air holes, and the bottom end of the heat-insulating pipe is provided with an air inlet of the heating chamber, and the air inlet passage, air hole, air passage, and heating chamber inlet The pores are connected in sequence to form an airflow channel.

Preferably, the gap between the heat insulating tube and the inner tube is between 0.05mm-0.5mm.

Further, the heating device includes a heating element base arranged in the inner tube and between the battery body and the heat insulation tube, and a heating element fixed on the heating element base, and one end of the heating element passes through the heating chamber The air inlet extends into the heat insulation tube, and the other end is electrically connected with the battery body.

Further, the bottom end of the heat-insulating pipe abuts against the base of the heating element, and the outer bottom surface of the heat-insulating pipe is provided with a groove communicating with the air inlet of the heating chamber and the air passage.

Further, in the low-temperature smoking set adopting the above-mentioned technical solution, the bottom end of the outer tube is provided with

a base, and the base seals and blocks the bottom end of the inner tube.

Further, the battery body includes a battery, a main board electrically connected to the battery, buttons arranged on the main board, and a charging interface arranged on the base.

Compared with the prior art, the beneficial effect of the utility model is: by directing the excess heat in the smoking set to the air intake channel, and realizing the transfer of heat under the cooling effect of the intake air flow, avoiding the continuous heat transfer to the air intake channel. The transfer of the outer tube causes the surface temperature to be too high, and the heat absorbed by the intake air flow enters the cigarette again, which makes the atomization efficiency of the tobacco material higher and makes full use of the heat energy generated by the heating element; at the same time, due to the air intake hole Located at the bottom of the outer tube, the air inlet channel is narrow and long, and the heat exchange efficiency is higher; there is a ring-shaped protrusion on the outer wall of the inner tube, when the air flow passes through the ring-shaped protrusion on the surface of the inner tube of the smoking set, the air flow section becomes smaller, and the air flow passes through the ring-shaped protrusion After lifting, the airflow section increases, and the airflow speed increases when the airflow section decreases, which can effectively cool down the inner tube wall surface of the peripheral attachment of the annular protrusion. There is a gap between the heat insulation tube and the inner tube for further heat insulation. Through the gap between the inner tube of the smoking set and the heat-insulating tube, it enters the cigarette branch, so that the temperature of the entire outer tube of the smoking set can be cooled to a certain extent and a small amount of heat that would otherwise be wasted can be recovered.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the explosion diagram of the utility model;

Fig. 3 is a cross-sectional view of the utility model heat insulation pipe;

Among them: 1-outer tube; 2-inner tube; 3-air intake channel; 4-base; 5-air intake hole; 6-battery body; 7-heating cavity; 10-sealing ring; 11-air passage; 12-air hole; 13-heating chamber air intake; 14-annular protrusion; 15-heating element base; 16-heating element; 17-groove; 19-battery; 20-main board; 21-charging interface; 22-button.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, the low-temperature smoking set provided by the utility model includes an outer tube 1 and an inner tube 2 set inside the outer tube 1, and the bottom end of the inner tube 2 is sealed and connected with the outer tube 1 by riveting. (Certainly also can choose any other suitable connecting structure to seal), there is a gap between the outer tube 1 and the inner tube 2 to become the air intake passage 3, and a base 4 is provided at the bottom of the outer tube 1, and the base 4 will The bottom end of the tube 2 is sealed, and the bottom wall of the outer tube 1 is provided with an air intake hole 5 communicating with the air intake passage 3. A battery body 6 is installed in one end of the inner tube 2 close to the air intake hole 5, and a battery body 6 is installed in the other end. There is a pod chamber 8 for inserting cigarettes and communicating with the air intake passage 3. The pod chamber 8 is provided with a heating device that heats the cigarettes and is electrically connected to the battery body 6. Set at the end far away from the pod chamber 8, the intake air flows rapidly in the narrow air intake passage 3, thereby taking away the heat absorbed by the inner tube 2, and at the same time, the intake air forms the heat insulation layer of the inner and outer tubes of the smoking device, preventing the smoking device from The outer tube 1 absorbs excessive heat, and maintains the temperature of the outer tube 1 of the smoking appliance at a lower level.

In order to improve the heat transfer efficiency, the inner tube 2 is preferably made of metal tubes with high heat conduction efficiency, such as magnesium alloy tubes, aluminum alloy tubes or copper tubes, and the outer tube 1 can be made of the same material as the inner tube 2. Non-metallic tubes can be used. When both the inner tube 2 and the outer tube 1 of the smoking set are made of non-metallic tubes, in order to gather the heat absorbed by the inner tube 2 on the outer surface and take it away with the rapidly passing airflow, the The outer surface of the inner tube 2 is provided with at least one metal covering layer with good thermal conductivity. The metal covering layer can be a metal coating or a metal foil adhered to the surface, wherein the constituent material of the metal covering layer is Magnesium alloy, aluminum alloy or copper. Similarly, a metal covering layer can also be provided on the inner surface of the outer pipe 1 of the smoking appliance, and its function is the same as that described above. In addition, in order to reduce the impact of the radiant heat of the inner tube 2 on the outer tube 1, a reflective coating can be provided on the inner surface of the outer tube 1. The reflective coating can be made of a material with a low heat absorption coefficient, such as indium tin oxide (ITO) , titanium dioxide, etc.

In order to make the intake air flow rapidly pass through the long and narrow intake passage 3, the gap between the outer tube 1 and the inner tube 2 is kept below 0.5 mm.

As shown in Fig. 1 and Fig. 2, adopting a preferred solution of the above structure, the pod chamber 8 is inserted with a heat insulating tube 9 with an open top, and the open end of the heat insulating tube protrudes from the inner tube 2 and passes through the The sealing ring 10 is sealed and connected with the outer pipe 1, and there is also a gap between the heat-insulating pipe 9 and the inner pipe 2, and the gap shown becomes the air passage 11. Preferably, the gap between the heat-insulating pipe 9 and the inner pipe 2 The gap is between 0.05mm-0.5mm, and the gap in such a range can allow the air to pass through the air passage 11 rapidly, improving the heat exchange efficiency. A plurality of air holes 12 are arranged on the wall surface of the top end of the inner tube 2, and the inner chamber of the heat insulating pipe 9 becomes a heating chamber 7, and the bottom end of the heat insulating pipe 9 is provided with a heating chamber air inlet 13, and the air inlet passage 3. The air hole 13, the air passage 11, and the heating chamber air inlet 13 are sequentially connected to form an air flow channel, wherein the material of the heat insulation pipe can be PEK, PEEK, PPS, etc.

As shown in Figure 1, in order to improve the cooling efficiency, a plurality of annular protrusions 14 arranged at intervals along the axial direction are also provided on the outer wall of the inner tube 2, and there is also a space between the top surface of the annular protrusions 14 and the outer tube 1. There is a gap, the airflow section becomes smaller when the airflow passes through the annular protrusion 14, the airflow section increases after the airflow passes through the annular protrusion 14, and the airflow velocity increases when the airflow section decreases, thereby effectively cooling the inner tube wall surface around the annular protrusion 14. In order to prevent whistling when the airflow passes through the annular protrusion 14 , the end surface of the annular protrusion 14 is configured as an arc surface with a smooth transition.

As shown in Figures 1-3, the heating device includes a heating element base 15 disposed in the inner tube between the battery body 6 and the heat insulation tube 9, and a heating element 16 fixed on the heating element base 15, so One end of the heating element 16 extends into the heat insulating tube 9 through the air inlet 13 of the heating chamber, and the other end is electrically connected to the battery body 6, and the bottom end of the insulating tube 9 is connected to the heating element base 15 Abutting against each other, a groove 17 communicating with the heating cavity air inlet 13 and the air passage 11 is provided on the outer bottom surface of the heat insulating pipe 9. The width of the groove 17 is narrow, so that the airflow flowing in from the air passage 11 Quickly pass through the groove 17, so as to more effectively take away the heat at the root of the heating element 16, and a step is formed on the inner wall of the inner tube 2, and the heating element base 15 is supported by a bracket 18 located in the inner tube 2 inside the tube 2 and abut against the stepped surface.

As shown in Figures 1 and 2, the battery body 6 includes a battery 19, a main board 20 electrically connected to the battery 19, a charging interface 21 arranged on the base 4 for charging the battery and extending out of the outer tube to connect with the main board. 20 is connected to the button 22, and the heating element 16 is electrically connected to the main board 20.

The above-mentioned embodiments are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the embodiments here. And the obvious changes or changes derived therefrom are still within the protection scope of the present utility model.

Claims (9)

1. a kind of low temperature smoking set, including outer tube and suit are fixed on the inner tube in outer tube, it is characterised in that：The outer tube and inner tube Between leave gap and turn into inlet channel, the outer tube bottom is provided with the air admission hole connected with inlet channel, and said inner tube is close Cell body is installed in one end of air admission hole, the cigarette bullet room for inserting for cigarette and being connected with inlet channel, institute are provided with the other end State cigarette bullet interior and be provided with the heater for being heated to cigarette and being electrically connected with cell body.

2. low temperature smoking set according to claim 1, it is characterised in that：Gap between outer tube and inner tube is maintained at 0.5mm Below.

3. low temperature smoking set according to claim 1, it is characterised in that：Said inner tube outer wall is provided with multiple axially spaced The annular protrusion of laying, gap is left between the top surface and outer tube of the annular protrusion.

4. low temperature smoking set according to claim 1, it is characterised in that：The cigarette bullet interior is fitted with the heat-insulated of top end opening Pipe, instlated tubular openend are stretched out from inner tube and are tightly connected with outer tube, and leaving gap between the instlated tubular and inner tube turns into Air flue is crossed, said inner tube top wall is provided with stomata, and the instlated tubular bottom is provided with heating chamber air admission hole, and the air inlet is led to Road, stomata, air flue, heating chamber air admission hole excessively are sequentially communicated to form gas channel.

5. low temperature smoking set according to claim 4, it is characterised in that：Gap between instlated tubular and inner tube is in 0.05mm- Between 0.5mm.

6. low temperature smoking set according to claim 4, it is characterised in that：The heater includes being arranged in inner tube and position Heater element pedestal, the heater element being fixed on heater element pedestal between cell body and instlated tubular, the heating member Part one end is stretched into the instlated tubular through the heating chamber air admission hole, and the other end electrically connects with cell body.

7. low temperature smoking set according to claim 6, it is characterised in that：The instlated tubular bottom and the heater element pedestal Abut against, the heating chamber air admission hole is communicated with the instlated tubular outer bottom and crosses the groove of air flue.

8. according to the low temperature smoking set described in claim any one of 1-7, it is characterised in that：The outer tube bottom is provided with base, institute Base is stated to block said inner tube bottom end seal.

9. low temperature smoking set according to claim 1, it is characterised in that：The cell body includes battery, electrically connected with battery Mainboard, the button being arranged on mainboard and the charging inlet being arranged on base.