Oxygen-deficient heating appliance with sealed bottom

By using a conical heating element and a vacuum insulation layer design, the problems of incomplete release of tobacco aroma components and reduced oxygen content in traditional heated cigarettes are solved, thereby improving heating uniformity and safety.

CN223745803UActive Publication Date: 2026-01-02CHINA TOBACCO HENAN IND CO LTD
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Patent Information

Application Number
CN202423013187.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-01-02
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Traditional heated cigarettes have difficulty fully releasing the aroma components of tobacco, and the reduced oxygen content in the tobacco segment leads to uneven heating, making them prone to breakage and posing a risk of burns.

Method used

The design employs a conical heating element and a vacuum insulation layer to create a sealed heating environment, ensuring that the cigarette is heated under oxygen-deficient conditions, eliminating stress concentration points, and improving heating uniformity and safety.

Benefits of technology

It achieves complete release of tobacco aroma components, avoids uneven heating and the risk of burns, and improves the strength and safety of the heating element.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an oxygen-deficient heating appliance with a sealed bottom. The oxygen-deficient heating appliance comprises an upper shell, a lower shell and a heating element, an interlayer is arranged between the upper shell and the lower shell, the heating element is located in the upper shell and fixed to the interlayer, a heating bin is arranged on the portion, located on the peripheral side of the heating element, of the upper shell, the heating bin is used for being connected with a cigarette, and the cigarette is connected to the heating element in an inserted mode; a power module is arranged in the lower shell and electrically connected with the heating element so as to control the heating element to heat the cigarette. The special-cone-shaped heating element structure is used, the oxygen-deficient heating technology is utilized, in the process that the cigarette is inserted into the heating bin, sealing is gradually formed at the bottom through the designed bottom size of the heating element, and a sealed heating environment is formed in the cigarette. The special conical structure can eliminate the bottom stress, improve the strength of the heating element and improve the heating uniformity at the same time.
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Description

TECHNICAL FIELD

[0001] The utility model relates to heating cigarette technical field, more specifically, relate to a bottom sealed oxygen -poor heating appliance. BACKGROUND

[0002] Traditional cigarette is through the direct combustion tobacco mode release nicotine and flavor, satisfy consumer's demand. The heating does not burn cigarette is the new type tobacco product that utilizes the heating equipment of the matched heating tobacco, does not make it burn and obtains nicotine and flavor, satisfies consumer's while relative traditional cigarette to the smoking demand has the characteristics of reducing the focus and reducing the harm. The heating temperature of heating cigarette is far lower than traditional cigarette combustion temperature, therefore the tobacco aroma component of heating cigarette is difficult to release completely, make heating cigarette difficult to be recognized by traditional cigarette smoker. If heating cigarette is inserted into the heating equipment, after starting heating, no longer enters air, then the oxygen content in the tobacco section will decrease along with the heating process, at this moment, even if the temperature of heating bin is increased, the tobacco section will not burn, the increase of temperature can make the tobacco aroma component release completely. SUMMARY

[0003] One object of the utility model is to provide a bottom sealed oxygen -poor heating appliance new technical scheme, to solve the problem raised in the above background art.

[0004] According to the first aspect of the utility model, a bottom sealed oxygen -poor heating appliance is provided, including upper shell, lower shell and heating element;

[0005] The upper shell and the lower shell are provided with a partition, the heating element is located in the upper shell, and is fixed on the partition, the upper shell is located on the circumferential side of the heating element and is provided with a heating bin, the heating bin is used for connecting a cigarette, and the cigarette is inserted on the heating element;

[0006] The lower shell is provided with a power module, and the power module is electrically connected with the heating element to control the heating element to heat the cigarette.

[0007] Optionally, according to the bottom sealed oxygen -poor heating appliance of the utility model, the heating element is of a conical structure, and the diameter of one end close to the partition is greater than the diameter of one end of the inserted cigarette.

[0008] Optionally, according to the bottom sealed oxygen -poor heating appliance of the utility model, the oblique edge of the longitudinal section of the heating element is of a concave arc structure.

[0009] Optionally, according to the bottom sealed oxygen -poor heating appliance of the utility model, the end of the cigarette is provided with an insertion hole, and the insertion hole is matched with the heating element.

[0010] Optionally, the bottom-sealed oxygen-poor heating appliance has a distance between the circumference of the plug hole and the outer diameter of the cigarette greater than a distance between the bottom of the heating element and the heating chamber.

[0011] Optionally, the bottom-sealed oxygen-poor heating appliance has a control module and a start button on the outer side wall of the lower shell, the power module is electrically connected with the control module and the start button, the start button is used to control heating and stopping of the heating element, and the control module is used to adjust the temperature of the heating element.

[0012] Optionally, the bottom-sealed oxygen-poor heating appliance has a ring-shaped heat insulation layer in the upper shell, so as to lock the heat of the heating element in the heating chamber.

[0013] Optionally, the bottom-sealed oxygen-poor heating appliance has a ring-shaped heat insulation layer in the upper shell, so as to lock the heat of the heating element in the heating chamber.

[0014] The bottom-sealed oxygen-poor heating appliance uses an asymmetric taper heating element structure and utilizes oxygen-poor heating technology, the bottom of the heating element is gradually sealed by the designed size during the process of inserting the cigarette into the heating chamber, and a sealed heating environment is formed in the cigarette; the bottom of the heating element of the current inner core heating appliance is a stress concentration point and is prone to breakage, and the heating is uneven, the asymmetric taper structure can eliminate the bottom stress, improve the strength of the heating element, and improve the uniformity of heating.

[0015] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0017] Figure 1 A structure schematic view of the bottom-sealed oxygen-poor heating appliance disclosed by the present application;

[0018] Figure 2 A structure schematic view of the bottom-sealed oxygen-poor heating appliance disclosed by the present application;

[0019] Legend of the figures:

[0020] 1-upper shell; 2-lower shell; 3-heating element; 4-cigarette; 5-power module; 6-start button; 7-control module; 8-plug hole; 9-heating chamber; 10-heat insulation layer. DETAILED DESCRIPTION

[0021] Various exemplary embodiments of the present application will now be described in detail with reference to the drawings. Note that the relative arrangement of the components and steps illustrated in these embodiments, numerical expressions, and numerical values are merely illustrative and do not limit the scope of the present application, unless specifically stated otherwise.

[0022] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the scope of the application or its application or uses.

[0023] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0024] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0025] According to Figure 1 and Figure 2 The present application provides a bottom-sealed oxygen-poor heating appliance, comprising an upper shell 1, a lower shell 2, and a heating element 3.

[0026] A partition is provided between the upper shell 1 and the lower shell 2, the heating element 3 is located in the upper shell 1 and fixed on the partition, the upper shell 1 is provided with a heating bin 9 on the circumferential side of the heating element 3, the heating bin 9 is used to connect a cigarette 4, and the cigarette 4 is inserted into the heating element 3.

[0027] A power module 5 is provided in the lower shell 2, the power module 5 is electrically connected with the heating element 3 to control the heating element 3 to heat the cigarette 4.

[0028] Further, the heating element 3 is in a conical structure, the diameter of one end close to the partition is greater than the diameter of one end of the inserted cigarette 4. The oblique edge of the longitudinal section of the heating element 3 is in a concave arc structure.

[0029] In the present embodiment, the hetero-conical heating element 3 structure is used, the oxygen-poor heating technology is used, and during the insertion of the cigarette 4 into the heating bin 9, the bottom of the cigarette 4 is gradually sealed by the designed bottom size of the heating element 3, and a sealed heating environment is formed inside the cigarette 4. The bottom of the heating element 3 of the current inner core heating appliance is a stress concentration point and is easy to break, and the heating is not uniform, the hetero-conical structure can eliminate the bottom stress, improve the strength of the heating element 3, and improve the uniformity of heating.

[0030] Further, the end of the cigarette 4 is provided with a plug hole 8 which cooperates with the heating element 3. The plug hole 8 realizes the positioning connection between the cigarette 4 and the heating element 3, so that the cigarette 4 is subjected to the size change of the heating element 3 during the process of being inserted into the heating bin 9, thereby uniformly spreading to the four directions with the plug hole 8 as the center, so as to fill the gap between the heating element 3 and the circumferential surface of the heating bin 9.

[0031] Further, the distance between the circumferential surface of the plug hole 8 and the outer diameter of the cigarette 4 is greater than the distance between the bottom of the heating element 3 and the heating bin 9, which guarantees the sealing of the cigarette 4 in the heating bin 9, thereby avoiding the air from entering the heating bin 9, reducing the oxygen content, and enabling the cigarette 4 to be heated in an oxygen-poor environment.

[0032] Further, the outer side wall of the lower shell 2 is further provided with a control module 7 and a start button 6, the power module 5 is electrically connected with the control module 7 and the start button 6, and the start button 6 is used for controlling the heating and stopping of the heating element 3, and the control module 7 is used for adjusting the temperature of the heating element 3. The start button 6 and the control module 7 adopted in the present application are the conventional heating non-combustion cigarette technology in the prior art, and the present application will not be described in detail.

[0033] Further, the upper shell 1 is further provided with an annular heat insulation layer 10, so as to lock the heat of the heating element 3 in the heating bin 9, and the heat insulation layer 10 is a vacuum annular cavity. In the implementation, the heat of the heating bin 9 cannot be transmitted through the medium by the vacuum heat insulation layer 10, so as to avoid the problem of causing accidental scalding during the heating process.

[0034] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A bottom-sealed, oxygen-depleted heating appliance, characterized in that, The application relates to a heating device for a cigarette, which comprises an upper shell, a lower shell and a heating element. A partition is arranged between the upper shell and the lower shell, the heating element is arranged in the upper shell and fixed on the partition, the upper shell is provided with a heating bin on the circumferential side of the heating element, the heating bin is used for connecting a cigarette, and the cigarette is inserted into the heating element. A power module is arranged in the lower shell, the power module is electrically connected with the heating element, so as to control the heating element to heat the cigarette.

2. The bottom-sealed, oxygen-depleted heating appliance of claim 1, wherein, The heating element is in a conical structure, the diameter of one end of the heating element close to the partition is larger than the diameter of one end of the inserted cigarette.

3. The bottom-sealed, oxygen-depleted heating appliance of claim 2, wherein, The oblique edge of the longitudinal section of the heating element is in a concave arc structure.

4. The bottom-sealed, oxygen-depleted heating appliance of claim 3, wherein, The end of the cigarette is provided with an insertion hole, and the insertion hole is matched with the heating element.

5. The bottom-sealed, oxygen-depleted heating appliance of claim 4, wherein, The distance between the circumferential surface of the insertion hole and the outer diameter of the cigarette is larger than the distance between the bottom of the heating element and the heating bin.

6. The bottom-sealed, oxygen-depleted heating appliance of claim 1, wherein, A control module and a starting button are further arranged on the outer side wall of the lower shell, the power module is electrically connected with the control module and the starting button, the starting button is used for controlling the heating and stopping of the heating element, and the control module is used for adjusting the temperature of the heating element.

7. The bottom-sealed, oxygen-depleted heating appliance of claim 1, wherein, A ring-shaped heat insulation layer is further arranged in the upper shell, so as to seal the heat of the heating element in the heating bin.

8. The bottom-sealed, oxygen-depleted heating appliance of claim 7, wherein, The heat insulation layer is a ring-shaped cavity in vacuum.