WO2021031911A1 - Low-temperature baking smoking set having spiral side air inlet, and low-temperature baking smoking set having cigarette side air inlet - Google Patents

Abstract

A low-temperature baking smoking set having a spiral side air inlet, comprising a housing (1) provided with a cigarette insertion cavity (4) and a heating body (2) provided in the cigarette insertion cavity (4) and heating a cigarette (5). One end of the cigarette insertion cavity (4) is a cigarette insertion end (401), and the other end is a closed end (402). An airflow groove (6) spirally extending from the cigarette insertion end (401) to the closed end (402) is provided on an inner wall of the cigarette insertion cavity (4). The airflow groove (6) and a side wall of the cigarette (5) matched and inserted into the cigarette insertion cavity (4) enclose an air inlet passage where the external air is in communication with an air inlet end of the cigarette. According to the low-temperature baking smoking set having a spiral side air inlet, the spiral air inlet passage is directly provided in the cigarette insertion cavity (4), and the condensate formed during the heating process of the cigarette (5) is concentrated in the cigarette insertion cavity (4), and does not flow to other parts of the smoking set. The smoking set is convenient to clean. At the same time, the air in the air inlet passage can take away some heat on the surface of the cigarette (5), thereby reducing the heat conduction to the housing (1) of the product.

Description

Low-temperature roasting smoking set with side spiral air intake, low-temperature roasting smoking set with side air intake of cigarette Technical field

The invention belongs to the technical field of smoking articles, and particularly relates to a low-temperature roasting smoking set with side spiral air intake and a low-temperature roasting smoking set with side air intake of cigarettes.

Background technique

Existing smoking sets on the market generally use straight-through air passages. The air passages are too long, and the condensate is too long. It is not easy to clean. The gas enters the smoking set. The smoking set is prone to failure and shortens the life of the device.

Chinese patents 2017206386809, 2018205939467, 2018205939467, etc. disclose a low-temperature smoking set with side air intake. By providing a side air inlet channel between the cigarette insertion cavity and the casing, the air inlet channel communicates with the bottom of the cigarette insertion cavity. So as to achieve the purpose of reducing the temperature of the casing of the smoking device by heat exchange, but the above patent still has the problem that the condensate enters the smoking device and pollutes the smoking device.

technical problem

The technical problem to be solved by the present invention is to provide a low-temperature roasting smoking appliance which is convenient to clean and can be air-intaken from the side of the cigarette or spirally from the side.

Technical solutions

To this end, one aspect of the present application provides a low-temperature roasting smoking set with side spiral air intake, which includes a housing provided with a cigarette insertion cavity and a heating element arranged in the cigarette insertion cavity to heat the cigarettes. One end of the cigarette insertion cavity is a cigarette insertion end, and the other end is a closed end.

The inner wall of the cigarette insertion cavity is provided with an airflow groove spirally extending from the cigarette insertion end to the closed end, and the airflow groove matches the side wall of the cigarette inserted in the cigarette insertion cavity Enclosed is an air inlet passage that communicates external air with the air inlet end of the cigarette.

Further, it also includes a driving assembly, and the heating element can rotate relative to the cigarette in the cigarette insertion cavity driven by the driving assembly.

Further, the inner bottom surface of the closed end is provided with a cigarette limiting rib, and an air inlet groove connecting the air inlet channel and the air inlet end of the cigarette is formed between the adjacent cigarette limiting ribs.

Further, the heating element has a rod shape or a sheet shape.

Further, a circuit board is further provided in the casing, and the electrode of the heating element is electrically connected to the battery in the casing through the circuit board.

Further, the driving assembly is a driving motor, one end of the heating body is fixedly connected with the output shaft of the driving motor, and the other end is inserted into the cigarette insertion cavity through a hole on the closed end.

Further, a dust cover that can shield the insertion end of the cigarette is provided on the housing.

Further, the cross-sectional contour line of the air flow groove is arc-shaped.

Further, the cross-sectional area of the air intake passage is between 1.1-1.5 square millimeters.

Further, the inner surface of the cigarette insertion cavity is glazed.

Further, the cigarette insertion cavity is divided into a heating section and a transition section, wherein the heating section is close to the closed end, the transition section is close to the cigarette insertion end, and the heating element is located in the heating section.

On the one hand, the present application provides a low-temperature roasting smoking set with air intake from the side of the cigarette, comprising a housing provided with a cigarette insertion cavity and a heating element arranged in the cigarette insertion cavity to heat the cigarette. The cigarette One end of the insertion cavity is the cigarette insertion end, and the other end is the closed end.

The inner wall of the cigarette insertion cavity is provided with at least one airflow groove extending from the cigarette insertion end to the closed end, and the airflow groove matches the side of the cigarette inserted in the cigarette insertion cavity The wall encloses an air inlet passage that communicates external air with the air inlet end of the cigarette.

It also includes a drive assembly, and the heating element can rotate relative to the cigarette in the cigarette insertion cavity driven by the drive assembly.

Beneficial effect

Compared with the prior art, at least one embodiment of the present application has the following beneficial effects.

1. The bottom of the cigarette insertion cavity is closed, and the air inlet channel is directly arranged in the cigarette insertion cavity. The condensate formed during the heating process of the cigarette and the dropped tobacco will be concentrated in the cigarette insertion cavity. It will not flow to other parts of the smoking set, and the smoking set is easy to clean.

2. The intake passage is designed in a spiral shape, and the air in the intake passage can take away part of the heat on the surface of the cigarette, thereby reducing heat transfer to the product shell.

3. The heating element is arranged on the inner circumference of the cigarette insertion cavity, and the air inlet channel passes through the high temperature zone. The condensate can only be formed when the heating element is finished and the temperature changes from high to low, so that there is little condensate formed.

4. The cigarette has a cleaning effect on the side wall of the cigarette insertion cavity when the cigarette is inserted and unplugged, so as to ensure that the cigarette does not have too much tobacco smell after use.

5. The heating element is designed as a rotatable structure, and the driving mechanism is used to drive the heating element to rotate relative to the cigarette, while the heating element and the cigarette are separated into motion, which is a good solution to the tobacco and the heating element after the cigarette is smoked The problem of adhesion, avoiding excessive residues of shredded tobacco on the heating element, reducing the burden of cleaning the heating element, and effectively preventing the smoking material from falling out of the smoking set, and the operation is also very convenient.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

Figure 2 is an exploded view of Embodiment 1 of the present invention.

Figure 3 is a partial cross-sectional view of Embodiment 1 of the present invention.

Figure 4 is a side cross-sectional view of Embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of the cigarette in Example 1 of the present invention after being inserted into the smoking device.

FIG. 6 is a schematic diagram of the airflow direction of Embodiment 1 of the present invention.

Fig. 7 is a first schematic diagram of the arrangement of the air intake passage in the cigarette insertion cavity in the first embodiment of the present invention.

Fig. 8 is a schematic diagram of the arrangement of the air intake passage in the cigarette insertion cavity in the first embodiment of the present invention.

Fig. 9 is a schematic diagram showing the fit of the cigarette in Example 1 of the present invention with the smoking set adopting the air intake channel arrangement form in Fig. 7.

Fig. 10 is a schematic diagram showing the fit of the cigarette in Example 1 of the present invention with the smoking set adopting the air intake channel arrangement form in Fig. 8.

11 is a schematic diagram of the connection between the dust cover, the sliding rail and the upper cover in Embodiment 1 of the present invention.

Figure 12 is an exploded schematic diagram of the dust cover, slide rail and upper cover in Embodiment 1 of the present invention.

Fig. 13 is a schematic diagram of a closed state of the dust cover according to Embodiment 1 of the present invention.

FIG. 14 is a schematic diagram of the dustproof cover in the open state of Embodiment 1 of the present invention.

Fig. 15 is a top view of the upper cover of the embodiment 1 of the present invention.

Fig. 16 is a bottom view of the upper cover of the embodiment 1 of the present invention.

Fig. 17 is a schematic structural diagram of Embodiment 2 of the present invention.

Figure 18 is a partial cross-sectional view of Embodiment 2 of the present invention.

Fig. 19 is a schematic diagram of the cigarette in Example 2 of the present invention inserted into the smoking device.

Among them: 1-shell, 101-bottom cover; 102-upper cover; 1021-upper cover body; 1022-upper bracket cover; 1023-upper cover device parts; 103-bracket; 2-heating element; 3-battery; 4 Cigarette insertion cavity; 401-cigarette insertion end; 402-closed end; 5-cigarette; 6-air flow groove; 7-drive assembly; 701-deceleration drive motor; 702-rotating holder; 703-heater Fixing seat; 8-cigarette limiting rib; 9-control button; 10-circuit board; 11-cigarette holder; 12-cigarette socket; 13-dust cover; 14-sliding groove; 15-sliding rail; 16 -Groove; 17-Elastic arm; 18-Protruding part; 19-First limiting recess; 20-Second limiting recess; 21-Vibration motor.

The best mode of the invention

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Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Example 1.

Referring to Figures 1 and 2, a low-temperature baking smoking set with air intake from the side of the cigarette includes a casing 1, a heating element 2 and a battery 3 for powering the heating element 2. The casing 1 is provided with a cigarette insertion cavity 4, One end of the cigarette insertion cavity 4 is a cigarette insertion end 401, and the other end is a closed end 402. The heating element 2 is arranged in the side of the cigarette insertion cavity 4 close to the closed end 402, so as to be inserted into the cigarette insertion cavity 4 The cigarettes are heated. In order to facilitate the insertion of the heating element 2 into the low-temperature cigarette 5 to heat the smoking material, the end of the heating element 2 facing the cigarette insertion end 401 can be designed to be sharp, and the shape of the heating element 2 can be designed to be rod-shaped, sheet-shaped or Other shapes of revolution.

3 and 4, in this embodiment, at least one air flow groove 6 extending from the cigarette insertion end 401 to the closed end 402 is provided on the inner side wall of the cigarette insertion cavity 4, and the air flow groove 6 matches The side wall of the cigarette 5 inserted in the cigarette insertion cavity 4 encloses an air inlet passage that communicates the external air with the air inlet end of the cigarette. In addition, a driving assembly 7 that drives the heating element 2 to rotate in the cigarette insertion cavity 4 is also provided in the housing 1.

The air inlet end of the cigarette in the present invention usually refers to the other end opposite to the end of the cigarette filter. When the cigarette 5 is heated and sucked, the user inhales from the filter, so that the inside of the cigarette forms a negative The airflow enters the cigarette from the other end of the cigarette (i.e. the intake end of the cigarette), and is then sucked into the mouth by the user. For cigarettes without a filter, when they are inhaled, the end where airflow enters is the cigarette inlet end.

In this embodiment, the bottom of the cigarette insertion cavity 4 is closed, and the air inlet channel is directly arranged in the cigarette insertion cavity 4. The condensate formed during the heating process of the cigarette and the dropped tobacco will be concentrated in the cigarette insertion cavity 4. It is placed in the cavity 4 without flowing to other parts of the smoking set, and the smoking set is convenient to clean. In addition, the heating element 2 is designed as a rotatable structure, and the drive assembly 7 is used to drive the heating element 2 to rotate relative to the cigarette, so that the heating element 2 and the cigarette separate and move, which is a good solution to the tobacco and heat generation after the cigarette is smoked. The adhesion problem of the body 2 avoids the excessive residue of tobacco shreds on the heating body 2 and reduces the burden of cleaning the heating body 2. At the same time, it can effectively prevent the smoking material from falling out of the smoking set. In addition, the operation is very convenient.

Referring to Figure 5, Figure 6, Figure 7 and Figure 9, in order to ensure the uniformity of the air intake, the air intake passages are evenly arranged along the circumferential direction of the cigarette insertion cavity 4. This embodiment is illustrated with two air intake passages. The cigarette is composed of a tobacco section and a filter section. When the cigarette is inserted into the cigarette insertion cavity 4, the filter section is at least partially exposed from the housing 1. When the user inhales , Enclose the filter section for suction. Under the action of suction negative pressure, the outside air enters the cigarette from the inlet end of the cigarette through the air inlet channel to bring the smoke generated by the heating of the tobacco section to the user’s mouth, in order to reduce the smoke temperature and increase For suction taste, a condensation transition section can also be set between the tobacco section and the filter section. Of course, as shown in Figs. 8 and 10, an air intake passage can be directly provided.

In this embodiment, the bottom of the cigarette insertion cavity 4 is closed, and the air inlet channel is directly arranged in the cigarette insertion cavity 4. The condensate formed during the heating process of the cigarette and the dropped tobacco will be concentrated in the cigarette insertion cavity 4. It is placed in the cavity 4 without flowing to other parts of the smoking set, and the entire smoking set can be cleaned by cleaning tools such as a brush, which is very convenient to clean. In addition, the cigarette has a cleaning effect on the inner wall of the cigarette insertion cavity 4 when the cigarette is inserted and unplugged, so as to ensure that the appliance does not have too much tobacco smell after use.

In addition, even if a small amount of smoke is reversed from the intake end of the cigarette into the cigarette insertion cavity 4, because the intake passage passes through the high temperature zone, the reversed smoke can only form condensate, and it can only be completed after the heating element 2 works. It can only form when the temperature changes from high to low, so that very little condensate is formed.

In particular, by glazing the inner wall of the cigarette insertion cavity 4, since the surface of the cigarette insertion cavity 4 is smooth, condensate will not be adsorbed on the inner wall, and a small amount of condensate will be adsorbed on the paper wall of the cigarette.

In order to facilitate the disassembly and assembly of components, in one embodiment, the housing 1 can be formed by buckling two half-shells, and the housing 1 can be made of plastic, glass, ceramic, or metal.

2-6, in one embodiment, in order to ensure sufficient air flow, the air inlet channel is arranged in parallel with the cigarette insertion cavity 4, that is to say, the air inlet channel and the central axis of the cigarette insertion cavity 4 Parallel, the cross-sectional area of the intake channel is between 1.1-1.5 square millimeters, and the cross-section is preferably a myopic circular or elliptical shape, but it is not limited to this, as long as sufficient ventilation can be ensured. When the cross-sectional area is less than 1.1 square millimeters, there is insufficient air intake, causing the user's suction power to increase, or even unable to smoke; when the cross-sectional area is greater than 1.5 square millimeters, in the adjacent two suction gaps In the meantime, due to the user's need to ventilate, the negative suction pressure decreases or disappears, and the smoke is easily reverted from the cigarette to the air intake channel, resulting in an increase in condensate. To overcome this situation, it is necessary to set a corresponding smoke stop The cost of equipment and smoking accessories has been increased.

1 and 3, the inner bottom surface of the closed end 402 of the cigarette insertion cavity 4 is provided with a cigarette limiting rib 8 and an air inlet groove is formed between adjacent cigarette limiting ribs 8. When the cigarette is inserted, the bottom end directly abuts against the limiting rib 8 of the cigarette to limit the position, and the airflow entering from the air inlet channel enters the bottom end of the cigarette through the air inlet groove. In order to minimize the airflow resistance, the cross-sectional area of the air inlet groove is designed to be greater than or equal to the cross-sectional area of the airflow channel and is smoothly connected to the airflow channel.

Referring to Figure 1, a button 9 for controlling the switch of the smoking device is provided on the housing 1, and a light indicator area is provided on the housing 1. The light indicator area is used to display the current power of the smoking device. If the power is insufficient, the user can Use the smoking set after charging.

1 and 2, it can be understood that in the actual design, the drive assembly 7 includes a decelerating drive motor 701, which is connected to the heating body fixing seat 703 via the rotating fixing frame 702, the heating body lower bracket 703, and The heating element 2 is fixedly installed on the heating element fixing seat 703, and the heating element 2 is driven to rotate by the driving motor 701. The heating section of the heating element 2 passes through the perforation on the closed end 402 of the cigarette insertion cavity 4 into the cigarette insertion cavity 4, thereby heating the cigarettes inside. The driving motor 701 is powered by the battery 3 and is controlled by the circuit board 10 in the housing 1. When the circuit board 10 controls the battery 3 to supply power to the motor, the motor drives the heating element 2 to rotate in the cigarette insertion cavity 4, and the cigarette The stick cannot overcome the static frictional resistance between the cigarette insertion cavity 4 and cannot rotate, so that the heating element 2 rotates relative to the cigarette, so that the adhesion between the heating element 2 and the smoking material is separated, and the problem is solved. The problem that the smoking material falls into the cigarette insertion cavity 4 when it is discharged.

In this embodiment, the heating element 2 can be rotated in the cigarette insertion cavity, so that centrifugal force can be used to spin off the shredded tobacco adhered to the heating element 2 and the number of times of cleaning the heating element 2 can be reduced. The battery 3, the circuit board 10, the driving motor 701, the heating element 2 and the control button 9 are electrically connected to form a control circuit. As for the specific structure of the control circuit, those skilled in the art can choose according to the design needs. It is a conventional technical means. This will not be repeated here.

In practical applications, by writing a control program, when the smoking of cigarettes is completed, a control command is generated through the circuit board 10 to drive the motor 701 to rotate left and right, and the drive motor 701 drives the heating element 2 to rotate left and right together twice for two seconds each time. Compared with the unidirectional rotation of the heating element 2, the adhered tobacco shreds are separated more thoroughly, and the winding problem of the energized line between the heating element 2 and the circuit board can be avoided, and the practicability is strong and the effect is good.

1 and 3, it should be noted that the cigarette insertion cavity 4 can be divided into a heating section and a transition section. The end near the closed end is the heating section. The heating element 2 is located in the heating section. The transition section does not have heating. Function, the cigarette insertion cavity 4 of the above structure, even if the smoke is reversed to form a small amount of condensate, because the condensate generally collects at the bottom of the cigarette insertion cavity 4, that is, only the heating section needs to be cleaned, and there is no need to The entire smoking set is cleaned, and the maintenance cost of the smoking set is reduced.

In this embodiment, the heating section heats the cigarette. The transition section has no heating function. When the cigarette is inserted, the tobacco section enters the heating section. When the smoke passes through the transition section from the cigarette, the transition section has no heating effect, so it can By obtaining effective cooling, the length of the exposed part of the cigarette can be reduced, the cigarette can be effectively prevented from being thrown out of the smoking appliance, and the anti-throwing performance of the cigarette can be improved.

1 and 2, this embodiment shows a specific structure of the cigarette insertion cavity 4: it includes a cigarette holder 11, the inner cavity of the cigarette holder 11 constitutes the cigarette insertion cavity 4, The top is provided with a cigarette insertion port 12 directly connected with the cigarette insertion cavity 4, and the cigarette is inserted into the cigarette insertion cavity 4 from the cigarette insertion port 12. The battery 3 is energized to the heating element 2 through the circuit board 10, and the circuit board 10 controls the startup, shutdown or intermittent power supply of the heating element 2. The heating element 2 is fixed on the heating element fixing seat 703, and the main heating part of the heating element 2 is set in the cigarette holder 11. When the smoking appliance is in use, the cigarette is inserted into the cigarette holder 11 through the cigarette socket 12 on the housing 1 , Is heated by the heating element 2.

In order to ensure uniform heating and reliability of transmission, the cigarette holder 11, the rotating fixing frame 702, the heating body lower bracket 703, the heating body fixing seat 703, the heating body 2 and the driving motor 701 are preferably arranged coaxially.

Referring to Figures 1 and 2, it is conceivable that, in order to facilitate the disassembly and assembly of parts, the casing 1 of the smoking set of this embodiment includes a bottom cover 101 with an opening at the top and an upper cover 102 covered on the bottom cover 101, and a dust cover 13 is slidably mounted on the upper cover 102. The driving assembly 7, the cigarette holder 11, the heating element 2, the battery 3 and the circuit board 10 are inserted in the bottom cover 101 and fixed by the upper cover 102. The bottom cover 101 is provided with a bracket 103, and the bracket 103 is provided with an installation station. The drive assembly 7, the heating element 2, the battery 3, and the circuit board 10 are inserted from the open end of the bottom cover 101 and installed on the bracket 103. At the station, when the upper cover 102 is closed on the bottom cover 101, components such as the drive assembly 7, the heating element 2, the battery 3, and the circuit board 10 are clamped and fixed on the corresponding installation station.

In this embodiment, the housing 1 adopts the structural design of the upper cover 102 and the bottom cover 101, which can facilitate the installation and disassembly of the heating element 2 and other components. The upper cover 102 and the bottom cover 101 can be connected by snapping or magnetic adsorption. .

In the foregoing embodiment, the battery 3 may be a nickel-hydrogen battery, a lithium-ion battery, or a hydrogen battery. When the rechargeable battery 3 is used, a USB charging interface may also be provided on the housing 1. The heating element 2 can be a porous ceramic heating element 2, of course, it can also be printed with a resistance layer on the substrate, but during production, the component ratio of the resistance layer needs to be controlled to make a uniformly mixed metal or alloy powder. And make the resistance paste, and then print the resistance paste on the substrate according to the preset shape, and make the electrode penetrate the heating element fixing seat 703 to form the electrode lead end, and finally put it into the high temperature furnace for heating, namely Can be made into heating element 2.

Referring to Figure 1, Figure 11 and Figure 12, in order to prevent dust and other substances from entering the smoking set from the smoking port 12 and contaminating the smoking set, an openable and closable dust cover for shielding the smoking port 12 can also be provided on the housing 1. 13.

Specifically, a sliding groove 14 is provided on the upper cover 102 of the housing, and the dust-proof cover 13 is slidably mounted on the sliding groove 14 via the sliding rail 15 for opening or closing the cigarette socket 12.

When the smoking set is not in use, slide the dust cover to cover the cigarette socket 12 to prevent dust from falling from the cigarette socket 12 into the cigarette socket cavity and pollute the flue; when the user needs to smoke, slide the dust cover 13 Expose the cigarette socket 12, insert the cigarette 4 into the cigarette socket cavity from the cigarette socket 12, and heat the tobacco material in the cigarette 4 by the heating element to start smoking. As for the specific connection method between the dust cover and the sliding rail 15, screw connection, bonding or buckle connection can be adopted.

Referring to Figure 13, Figure 14 and Figure 15, the smoking device of this embodiment, the side wall of the slide groove 14 is provided with a groove 16 extending along the sliding direction of the dust cover 13, and the slide rail 15 is provided with elasticity inserted into the groove 16 The arm 17, the elastic arm 17 is formed with a protrusion 18 that slides against the first inner side wall of the groove 16, and the first inner side wall is provided with a first limiting recess 19 and a second limiting recess along the extending direction of the chute The recess 20, when the protrusion 18 is driven by the dust cover to slide into the first limiting recess 19, the dust cover completely shields the smoke insertion opening 12; when the protrusion 18 is driven by the dust cover to reverse When the second limiting recess 20 is slidably locked, the cigarette insertion opening 12 is completely exposed, facilitating the insertion of cigarettes; wherein, the first inner side wall is the inner side wall of the groove close to the dust cover.

Referring to Figures 11-16, in this embodiment, the groove 16 is provided with a first limiting recess 19 and a second limiting recess 20, and the elastic arm 17 is provided with a slidable engagement in the limiting recess And under the action of external force, the protrusion 18 can slide out from the inside. When the dust cover 13 is pushed to move closely to the smoking set body 1 along the chute 5, the protrusion 18 is driven by the elastic arm 17 to closely adhere to the first inner side The wall slides. When the protrusion 18 slides into the first limiting recess 19, and the sliding distance of the dust cover is limited, the dust cover just shields the cigarette insertion opening 12, and when the protrusion 18 slides into The second limiting recess 20, when the sliding distance of the dust cover is limited, the dust cover just exposes the smoke insertion opening 12. During the sliding process, the elastic force provided by the elastic arm 17 makes the entire dust cover sliding process When the dust cover slides to the closed position or the open position, it will reflect the hand feel and the user experience is good.

Referring to Figure 13, Figure 14 and Figure 16, in the actual design, in order to ensure the smoothness of sliding, the elastic arm 17 can be symmetrically arranged in two groups on the sliding rail 15 along the sliding direction of the dust cover. Correspondingly, the groove 16 is also arranged Two groups.

12 and 16, the upper cover 102 includes an upper cover body 1021, an upper bracket cover 1022 arranged in the upper cover body 1021, and an upper cover device 1023 arranged between the upper cover body 1021 and the dust cover 13. A limiting recess 19 and a second limiting recess 20 are provided on the inner surface of the upper cover 1021.

Referring to Fig. 1, in order to prevent heat from being transferred to the housing 1, a heat insulating member can be arranged between the housing 1 and the periphery of the cigarette insertion cavity 4 or air heat can be used directly. When the heat insulating member is used for heat insulation, The heat-insulating member can be a vacuum tube or heat-insulating cotton, etc. A vibration motor 21 can be provided in the housing 1 to indicate the completion of heating. When the set heating time or heating temperature is reached, the control circuit controls the vibration motor 21 to start, and the housing 1 Vibration, prompts that the heating is completed or the set temperature is reached, and the heating element 2 stops working or keeps warm.

Example 2.

Referring to Figures 17-19, and embodiment 1, the embodiment of the present application provides a low-temperature roasting smoking set with side spiral air intake. A spiral from the cigarette insertion end 401 is provided on the inner side wall of the cigarette insertion cavity 4 The air flow groove 6 extending to the closed end 402, the air flow groove 6 and the side wall of the cigarette 5 matched and inserted in the cigarette insertion cavity 4 enclose an air inlet passage that communicates the external air with the air inlet end of the cigarette The other structures of Embodiment 2 are the same as those of Embodiment 1, and will not be repeated here. In this embodiment, the air intake channel is designed in a spiral shape, and the air in the air intake channel can take away part of the heat on the surface of the cigarette, thereby reducing heat conduction to the product shell.

The above-mentioned embodiments are merely examples to clearly illustrate the present invention, rather than limiting the implementation manners. 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 unnecessary and impossible to list all the embodiments here. The obvious changes or modifications derived from this are still within the protection scope of the present invention.

Industrial applicability

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Sequence Listing Free Content

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Claims (15)

1. The low-temperature roasting smoking set with side spiral air intake includes a shell provided with a cigarette insertion cavity and a heating element arranged in the cigarette insertion cavity to heat the cigarette, and one end of the cigarette insertion cavity is the cigarette The insertion end and the other end are closed ends, which are characterized by:

   The inner wall of the cigarette insertion cavity is provided with an airflow groove spirally extending from the cigarette insertion end to the closed end, and the airflow groove matches the side wall of the cigarette inserted in the cigarette insertion cavity Enclosed is an air intake passage connecting the outside air with the air intake end of the cigarette.
2. The low-temperature roasting smoking set according to claim 1, further comprising a driving assembly, and the heating body is driven by the driving assembly to rotate relative to the cigarette in the cigarette insertion cavity.
3. The low-temperature baking smoking set according to claim 2, wherein the driving assembly is a driving motor, one end of the heating element is fixedly connected with the output shaft of the driving motor, and the other end is from the perforation on the closed end. Insert into the cigarette insertion cavity.
4. The low-temperature roasting smoking set according to claim 1 or 2, characterized in that: the inner bottom surface of the closed end is provided with cigarette limiting ribs, and adjacent to the cigarette limiting ribs are formed to connect the air inlet channel An air inlet groove communicating with the air inlet end of the cigarette.
5. The low-temperature roasting smoking set according to claim 1 or 2, characterized in that: the outer shell is provided with a dust cover that can shield the insertion end of the cigarette.
6. The low-temperature baking smoking set according to claim 1 or 2, wherein the cross-sectional contour line of the air flow groove is arc-shaped.
7. The low-temperature roasting smoking set according to claim 1 or 2, wherein the inner surface of the cigarette insertion cavity is glazed.
8. The low-temperature roasting smoking set according to claim 1 or 2, characterized in that: the cigarette insertion cavity is divided into a heating section and a transition section, wherein the heating section is close to the closed end, the transition section is close to the cigarette insertion end, and the heating element Located in the heating section.
9. The low-temperature roasting smoking set with air intake from the side of the cigarette includes a shell provided with a cigarette insertion cavity and a heating element arranged in the cigarette insertion cavity to heat the cigarette, and one end of the cigarette insertion cavity is a cigarette The end of the branch is inserted and the other end is the closed end, which is characterized by:

   The inner wall of the cigarette insertion cavity is provided with at least one airflow groove extending from the cigarette insertion end to the closed end, and the airflow groove matches the side of the cigarette inserted in the cigarette insertion cavity The wall encloses an air inlet passage connecting the outside air with the air inlet end of the cigarette;

   It also includes a drive assembly, and the heating element can rotate relative to the cigarette in the cigarette insertion cavity driven by the drive assembly.
10. The low-temperature roasting smoking set according to claim 9, characterized in that: the inner bottom surface of the closed end is provided with cigarette limiting ribs, and adjacent to the cigarette limiting ribs are formed to connect the air inlet channel and the smoke An air inlet groove connected to the branch air inlet end.
11. The low-temperature roasting smoking set according to claim 9, wherein the air inlet passage is evenly arranged along the circumferential direction of the cross section of the cigarette insertion cavity.
12. The low-temperature baking smoking set according to claim 9, wherein the drive assembly is a drive motor, one end of the heating element is fixedly connected to the output shaft of the drive motor, and the other end is from the perforation on the closed end. Insert into the cigarette insertion cavity.
13. The low-temperature roasting smoking set according to claim 9, wherein the cross-sectional contour line of the air flow groove is arc-shaped.
14. The low-temperature roasting smoking set according to claim 9, wherein the air inlet passage is parallel to the axis of the cigarette insertion cavity and the cross-sectional area is between 1.1-1.5 square millimeters.
15. The low-temperature roasting smoking set according to claim 9, wherein the cigarette insertion cavity is divided into a heating section and a transition section, wherein the heating section is close to the closed end, the transition section is close to the cigarette insertion end, and the heating element is located at the heating section. Within paragraph.