Heating cigarette smoking set
By designing a cylindrical heating element and internal cavity structure in the heated cigarette device, uniform heating of the airflow and the cigarette is achieved, solving the problems of high heat loss of the heat source and uneven heating of the cigarette, thus improving the user experience.
Patent Information
- Application Number
- CN202423086692.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing heated cigarette devices suffer from excessive heat loss of the heat source and uneven heating of the cigarette, affecting the user's smoking experience.
Design a heated cigarette device, including a cylindrical heating element and an inner cavity. The inner cavity is divided into an airflow channel, a flow chamber, and a receiving chamber. The heating element exchanges heat with the gas in the airflow channel to preheat the gas. The gas enters the receiving chamber to heat the cigarette. Heat transfer is optimized through thermally conductive materials and heat exchange components to reduce heat diffusion loss.
It achieves uniform heating of the cigarette, improves heat utilization, reduces heat diffusion loss, and enhances the user's smoking experience.
Smart Images
Figure CN223614212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoking accessories, and in particular to heated cigarette smoking accessories. Background Technology
[0002] Heated cigarettes are a type of novel tobacco product. They work by electrically heating the cigarette at a low temperature, producing smoke without combustion. Because tobacco has a low thermal conductivity, heat from the heat source is more easily conducted to surrounding components, resulting in high overall energy consumption and low heat utilization efficiency. Furthermore, the heat source cannot effectively conduct heat throughout the cigarette, leading to uneven heating, less smoke, and a negative impact on the user's smoking experience. Utility Model Content
[0003] According to one aspect of the present invention, the present invention provides a heated cigarette device to solve the problems of excessive heat loss of the heat source and uneven heating of the cigarette in the prior art, which affect the user's experience.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] Heated cigarette devices, including:
[0006] The base has an inner cavity;
[0007] The heating element is cylindrical and is disposed in the inner cavity, which divides the inner cavity into an airflow channel and a receiving cavity for accommodating the cigarette. One end of the heating element is spaced apart from the cavity wall of the inner cavity to form a flow passage. The airflow channel is used for the entry of external air. The airflow channel, the flow passage, and the receiving cavity are connected in sequence. The heating element can generate heat to heat the cigarette located in the receiving cavity and exchange heat with the gas in the airflow channel.
[0008] As a preferred embodiment of a heated cigarette device, the inner cavity wall is cylindrical, and the centerline of the inner cavity coincides with the centerline of the heating element.
[0009] As a preferred embodiment of a heated cigarette device, the outer peripheral wall of the heating element is provided with heat exchange protrusions, which are made of a heat-conducting material.
[0010] As a preferred embodiment of heated cigarette devices, the heat exchange protrusions extend along the gas flow direction.
[0011] As a preferred embodiment of heated cigarette devices, the device also includes a heat exchanger made of a thermally conductive material, which is connected to the heating element. The heat exchanger has a first through hole and a second through hole. The airflow channel is connected to the flow cavity through the first through hole, and the flow cavity is connected to the receiving cavity through the second through hole.
[0012] As a preferred embodiment of a heated cigarette device, the heat exchanger has a plurality of first through holes, which are spaced apart along the circumference of the heat exchanger; the heat exchanger also has a plurality of second through holes, which are spaced apart along the circumference of the heat exchanger.
[0013] As a preferred embodiment of a heated cigarette device, the number of the first through holes is greater than the number of the second through holes, and the diameter of the second through holes is greater than the diameter of the first through holes.
[0014] As a preferred embodiment of heated cigarette devices, a foam material is also included that fills the flow cavity and is connected to the heating element.
[0015] As a preferred embodiment of a heated cigarette device, the flow cavity has a bottom wall and a side wall. The bottom wall is located at the end of the flow cavity away from the heating element, and a guide wall is provided between the bottom wall and the side wall. The guide wall is arc-shaped.
[0016] As a preferred option for heated cigarette devices, the base is made of heat-insulating material.
[0017] The beneficial effects of this utility model are:
[0018] This utility model provides a heated cigarette device, including a base and a heating element. The base has an inner cavity, and the heating element is cylindrical and disposed in the inner cavity, which is divided into an airflow channel and a receiving cavity for accommodating the cigarette. One end of the heating element is spaced apart from the cavity wall to form a flow passage. The airflow channel is used for the entry of external air. The airflow channel, the flow passage, and the receiving cavity are connected in sequence. The heating element can generate heat to heat the cigarette located in the receiving cavity and exchange heat with the gas in the airflow channel. This allows the external air to exchange heat with the heating element when passing through the airflow channel, thereby preheating the gas. The heated gas enters the receiving cavity and can evenly heat the cigarette. In addition, the heat exchange between the heating element and the gas in the airflow channel can reduce the heat conducted to the outer shell, thereby reducing the heat loss through diffusion through the outer shell. Attached Figure Description
[0019] Figure 1 This is a cross-sectional view of the heated cigarette device in an embodiment of this utility model;
[0020] Figure 2 This is a schematic diagram of the heat exchanger in an embodiment of this utility model.
[0021] In the picture:
[0022] 1. Base; 11. Airflow channel; 12. Receiving cavity; 13. Flow cavity; 131. Guide wall;
[0023] 2. Heating element;
[0024] 3. Heat exchanger; 31. First through hole; 32. Second through hole. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0029] Heated cigarettes are a type of novel tobacco product. They work by electrically heating the cigarette at a low temperature, producing smoke without combustion. Because tobacco has a low thermal conductivity, heat from the heat source is more easily conducted to surrounding components, resulting in high overall energy consumption and low heat utilization efficiency. Furthermore, the heat source cannot effectively conduct heat throughout the cigarette, leading to uneven heating, less smoke, and a negative impact on the user's smoking experience.
[0030] In response, this embodiment provides a heated cigarette device to solve the problems of excessive heat loss of the heat source and uneven heating of the cigarette in the prior art, which affect the user's experience. It can be used in the field of cigarette device technology.
[0031] Reference Figures 1-2 The heated cigarette device includes a base 1 and a heating element 2. The base 1 has an inner cavity, and the heating element 2 is cylindrical and disposed in the inner cavity, dividing the inner cavity into an airflow channel 11 and a receiving cavity 12 for accommodating the cigarette. One end of the heating element 2 is spaced apart from the cavity wall to form a flow passage 13. The airflow channel 11 is used for the entry of external air. The airflow channel 11, the flow passage 13, and the receiving cavity 12 are connected in sequence. The flow path of the gas in the heated cigarette device is as follows: Figure 1 As indicated by the arrow in the diagram. The heating element 2 generates heat to heat the cigarette located in the receiving cavity 12 and exchanges heat with the gas in the airflow channel 11, so that the outside air can exchange heat with the heating element 2 when passing through the airflow channel 11, thereby preheating the gas. The heated gas enters the receiving cavity 12 and can evenly heat the cigarette. In addition, the heat exchange between the heating element 2 and the gas in the airflow channel 11 can also reduce the heat conducted to the outer shell 1, thereby reducing the heat loss through diffusion through the outer shell 1.
[0032] Specifically, the heating element 2 includes a housing and a heating core disposed inside the housing. The heat emitted by the heating core can be conducted to the housing and then to the cigarette.
[0033] Continue to refer to Figures 1-2 The inner cavity wall is cylindrical, and the center line of the inner cavity coincides with the center line of the heating element 2, so that the airflow channel 11 between the outer wall of the heating element 2 and the inner cavity wall is arranged around the outer wall of the heating element 2, and the width of the airflow channel 11 is the same at different positions.
[0034] Continue to refer to Figures 1-2 The outer peripheral wall of the heating element 2 is provided with heat exchange protrusions that extend toward the airflow channel 11. The heat exchange protrusions are made of thermally conductive material, so that heat exchange can occur between the heat exchange protrusions and the gas in the airflow channel 11, thereby further improving the heat exchange efficiency between the gas and the heating element 2.
[0035] Optionally, the heat exchange protrusions extend along the gas flow direction, thereby reducing the obstruction of gas flow by the heat exchange protrusions.
[0036] Continue to refer to Figures 1-2 The heated cigarette device also includes a heat exchanger 3 made of a heat-conducting material. The heat exchanger 3 is connected to the heating element 2. The heat exchanger 3 has a first through hole 31 and a second through hole 32. The airflow channel 11 is connected to the flow cavity 13 through the first through hole 31, and the flow cavity 13 is connected to the receiving cavity 12 through the second through hole 32. This arrangement allows the heat generated by the heating element 2 to be transferred to the heat-conducting element 3, so that the heating element 2 can heat the heat-conducting element 3 while heating the cigarette, thereby preheating the gas passing through the first through hole 31 and the second through hole 32.
[0037] Continue to refer to Figures 1-2 The heat exchanger 3 has multiple first through holes 31, which are spaced apart along the circumference of the heat exchanger 3; the heat exchanger 3 also has multiple second through holes 32, which are spaced apart along the circumference of the heat exchanger 3, so that the gas can pass through the heat exchanger 3 evenly along the circumference of the heat exchanger 3, thereby making the gas evenly heated and flowing evenly into the receiving cavity 12.
[0038] In the above structure, since the airflow channel 11 is connected to the flow cavity 13 through the first through hole 31, and the flow cavity 13 is connected to the receiving cavity 12 through the second through hole 32, and the airflow channel 11 is located outside the receiving cavity 12, the multiple first through holes 31 are also arranged outside the second through holes 32. In this embodiment, the number of first through holes 31 is greater than the number of second through holes 32 to accommodate the above features. In order to match the gas flow rate in the multiple first through holes 31 with the gas flow rate in the multiple second through holes 32, the diameter of the second through hole 32 is larger than the diameter of the first through hole 31.
[0039] As an alternative, the heat exchanger 3 can be omitted, and the heated cigarette device also includes foam material filled in the flow cavity 13 and connected to the heating element 2. The foam material has dense pores, which also serve the functions of heat exchange and ventilation.
[0040] Continue to refer to Figures 1-2 The flow cavity 13 has a bottom wall and a side wall. The bottom wall is located at the end of the flow cavity 13 away from the heating element 2. Gas needs to enter the flow cavity 13 from the end of the flow cavity 13 close to the heating element 2 and then flow out again through the end close to the heating element 2. In order to reduce the flow resistance of the gas, a guide wall 131 is provided between the bottom wall and the side wall. The guide wall 131 is arc-shaped so that the transition between the bottom wall and the side wall is smooth, which can reduce the flow resistance of the gas.
[0041] Continue to refer to Figures 1-2 The base 1 is made of heat-insulating material, thereby reducing the heat conducted from the heating element 2 to the base 1 and thus preventing heat loss.
[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A heated cigarette smoking device, characterized in that, include: The base (1) has an inner cavity; The heating element (2) is cylindrical and is disposed in the inner cavity, which divides the inner cavity into an airflow channel (11) and a receiving cavity (12) for accommodating the cigarette. One end of the heating element (2) is spaced apart from the cavity wall of the inner cavity to form a flow passage (13). The airflow channel (11) is used for the entry of external air. The airflow channel (11), the flow passage (13) and the receiving cavity (12) are connected in sequence. The heating element (2) can generate heat to heat the cigarette located in the receiving cavity (12) and exchange heat with the gas in the airflow channel (11).
2. The heated cigarette smoking device according to claim 1, characterized in that, The inner cavity wall is cylindrical, and the center line of the inner cavity coincides with the center line of the heating element (2).
3. The heated cigarette smoking device according to claim 1, characterized in that, The outer peripheral wall of the heating element (2) is provided with heat exchange protrusions, which are made of thermally conductive material.
4. The heated cigarette smoking device according to claim 3, characterized in that, The heat exchange protrusions extend along the direction of gas flow.
5. The heated cigarette smoking device according to any one of claims 1-4, characterized in that, It also includes a heat exchanger (3) made of thermally conductive material, the heat exchanger (3) being connected to the heating element (2), the heat exchanger (3) having a first through hole (31) and a second through hole (32), the airflow channel (11) being connected to the flow cavity (13) through the first through hole (31), and the flow cavity (13) being connected to the receiving cavity (12) through the second through hole (32).
6. The heated cigarette smoking device according to claim 5, characterized in that, The heat exchanger (3) has a plurality of first through holes (31), which are spaced apart along the circumferential direction of the heat exchanger (3); the heat exchanger (3) has a plurality of second through holes (32), which are spaced apart along the circumferential direction of the heat exchanger (3).
7. The heated cigarette smoking device according to claim 6, characterized in that, The number of first through holes (31) is greater than the number of second through holes (32), and the diameter of the second through holes (32) is greater than the diameter of the first through holes (31).
8. The heated cigarette smoking device according to any one of claims 1-4, characterized in that, It also includes a foam material that fills the flow cavity (13) and is connected to the heating element (2).
9. The heated cigarette smoking device according to any one of claims 1-4, characterized in that, The flow cavity (13) has a bottom wall and a side wall. The bottom wall is located at the end of the flow cavity (13) away from the heating element (2). A guide wall (131) is provided between the bottom wall and the side wall. The guide wall (131) is arc-shaped.
10. The heated cigarette smoking device according to any one of claims 1-4, characterized in that, The base (1) is made of heat-insulating material.