TWI899741B - Heat-not-burn cartridge - Google Patents

Abstract

The invention belongs to the technical field of electronic cigarettes and discloses a heat-not-burn cigarette. The heat-not-burn cigarette includes a connector assembly, a metal sleeve and a paper tube. The connector assembly includes a plugging portion, a smoke generating portion, a cooling portion, and a filtering portion that sequentially abut against each other along a first direction. The cooling portion includes a cooling cylinder and a throttling plate. A circulation groove is arranged on an outer wall of the cooling cylinder. The circulation groove penetrates to both axial ends of the cooling cylinder. The throttling plate is installed in a middle channel of the cooling cylinder. A flow hole is provided on the throttling plate. The metal sleeve is set on the outsides of the plugging portion, the smoke generating portion, the cooling portion and the filtering portion. The paper tube is set on the outsides of the filtering portion and part of the metal sleeve. In the present invention, the metal sleeve is set on the outsides of the cooling portion, the smoke generating portion, and the plugging portion. Compared with the existing paper tube pod, it can conduct the heat from the cooling part more efficiently, and the thermal conductivity is stronger. Compared with existing paper cartridges, the heat-not-burn cigarette with the metal sleeve can conduct heat from the cooling portion more efficiently and has stronger thermal conductivity. The metal sleeve can dissipate heat from the smoke generating portion and the plugging portion at the same time, so that the smoke generating portion can be heated more safely and reliably.

Description

Heat-not-burn fireworks

The present invention relates to the field of electronic cigarette technology, and more particularly to a heat-not-burn fireworks cartridge.

Existing heat-not-burn cigarette cartridges are usually made of a plug part, a smoke-generating part, a cooling part, and a filter part connected in series and wrapped in a paper tube. When in use, the heat-not-burn cigarette cartridge needs to be inserted into the cigarette burner, so that the heating components such as the heating needle or heating plate in the cigarette burner are inserted into the smoke-generating part, and the smoke-generating part is heated to generate an aerosol. The aerosol is first cooled by the cooling part, then filtered by the filter part, and finally inhaled by the user. However, in the existing heat-not-burn cigarette cartridges, the cooling effect of the cooling part is insufficient, which affects the filtering effect of the filter part, damages the safety and reliability of the heat-not-burn cigarette cartridge and the cigarette burner structure, and reduces the user experience.

The present invention provides a heat-not-burn smoke bomb that can achieve more efficient cooling. A heat-not-burn smoke bomb comprises: A serial assembly comprising a plug portion, a smoke-generating portion, a cooling portion, and a filter portion, arranged in abutment with each other in a first direction. The cooling portion comprises a cooling cylinder and a throttle plate. A flow groove is provided on the outer wall of the cooling cylinder, extending to both axial ends of the cooling cylinder. The throttle plate is disposed in the central channel of the cooling cylinder and is provided with a flow hole. A metal sleeve is mounted on the outer sides of the plug portion, the smoke-generating portion, and the cooling portion. A paper tube is mounted on the outer sides of the filter portion and a portion of the metal sleeve.

Optionally, a plurality of the flow grooves are evenly distributed along the circumferential direction on the outer wall of the cooling cylinder.

Optionally, a plurality of ridges are provided on the outer wall of the cooling cylinder, and a flow groove is formed between two adjacent ridges.

Optionally, the convex strip extends in a straight line along the first direction.

Optionally, the ribs extend spirally around the axis of the cooling cylinder.

Alternatively, the width of the flow groove gradually increases from the groove bottom to the groove opening of the flow groove.

Optionally, the throttle plate is located at the middle position of the cooling cylinder in the axial direction.

Optionally, the axial length of the metal sleeve is equal to the sum of the lengths of the plug portion, the smoke-generating portion and the temperature-cooling portion.

Alternatively, the axial length of the paper tube is equal to the sum of the lengths of the filtering portion and the cooling portion.

Alternatively, the diameter of the filter portion is equal to the outer diameter of the metal sleeve, and the filter portion abuts against one end of the metal sleeve.

Beneficial Effects of the Invention: A metal sleeve is installed around the cooling section, smoke generator, and plug. Compared to existing paper-cylinder-mounted smoke bombs, this design can more efficiently transfer heat away from the cooling section, resulting in enhanced thermal conductivity. Furthermore, the metal sleeve can dissipate heat from both the smoke generator and the plug simultaneously, allowing for safer and more reliable heating of the smoke generator. Because the metal sleeve has less elastic deformation than a paper cylinder, when the smoke generator is squeezed, it deforms only toward the plug and cooling section. The central channel of the cooling cylinder accommodates the deformed and protruding smoke-generating section, preventing the compression of the smoke-generating section, which would otherwise reduce the internal air gap and increase the suction resistance. The throttle plate in the cooling cylinder acts as a throttling plate, increasing the contact area with the airflow and preventing excessive airflow and velocity from affecting the cooling and heat dissipation performance of the cooling section. The flow grooves on the outer wall of the cooling cylinder act as flow guides, further increasing the contact area with the airflow and improving the cooling and heat dissipation performance.

The following describes embodiments of the present invention in detail. Examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and intended to explain the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be interpreted broadly. For example, these terms may refer to fixed or removable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

In the description of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature and the second feature being in contact not directly but through another feature therebetween. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or diagonally below the second feature, or may simply mean that the first feature is lower in level than the second feature.

The technical solution of the present invention is further described below with reference to the drawings and through specific implementation methods.

As shown in Figures 1-9, the present invention provides a heat-not-burn fireworks bomb, including a serial assembly 1, a metal sleeve 2, and a paper tube 3. Among them, the series assembly 1 includes a plug part 11, a smoke-generating part 12, a cooling part 13 and a filter part 14 that are sequentially abutted along a first direction. The cooling part 13 includes a cooling cylinder 131 and a throttle plate 132. A circulation groove 1311 is provided on the outer wall of the cooling cylinder 131. The circulation groove 1311 passes through the two axial ends of the cooling cylinder 131. The throttle plate 132 is provided in the middle channel of the cooling cylinder 131. The throttle plate 132 is provided with a circulation hole 1321. The metal sleeve 2 is sleeved on the outer sides of the plug part 11, the smoke-generating part 12 and the cooling part 13. The paper tube 3 is sleeved on the outer sides of the filter part 14 and part of the metal sleeve 2.

In the present invention, a metal sleeve 2 is sleeved on the outer side of the cooling part 13, the smoke-generating part 12 and the plug part 11. Compared with the existing paper cylinder smoke bomb, the heat of the cooling part 13 can be conducted out more efficiently, and the thermal conductivity is stronger. In addition, the metal sleeve 2 can dissipate heat to the smoke-generating part 12 and the plug part 11 at the same time, so that the smoke-generating part 12 can be heated more safely and reliably. Since the elastic deformation of the metal sleeve 2 is smaller than that of the paper cylinder, when the smoke-generating part 12 is squeezed, it can only move toward the plug part 11 and the cooling part 13. The middle channel of the cooling cylinder 131 can accommodate the deformed and protruding smoke-generating part 12, avoiding the problem of the internal air gap becoming smaller and the suction resistance increasing due to the compression and compaction of the smoke-generating part 12. The throttle plate 132 in the cooling cylinder 131 plays a throttling role, increasing the contact area with the airflow, and avoiding the airflow volume and flow rate being too large to affect the cooling and heat dissipation effect of the cooling part 13. The flow groove 1311 on the outer wall of the cooling cylinder 131 plays a guiding role, further increasing the contact area with the airflow, and improving the cooling and heat dissipation effect.

Specifically, the plug part 11 is made of agglomerated herbs and has a leak-proof and breathable effect. It is sealed at one end of the metal sleeve 2 and can prevent the smoke-generating part 12 from escaping from the metal sleeve 2.

More specifically, the smoke-generating portion 12 is made of agglomerated herbs, has a lower density than the plug portion 11, and is capable of generating an aerosol when heated.

In this embodiment, the plug portion 11 and the smoke-generating portion 12 are both cylindrical structures. The axial length of the plug portion 11 is smaller than that of the smoke-generating portion 12. The plug portion 11 and the smoke-generating portion 12 are prepared by mixing tobacco with alcohol reagents, ester reagents, flavors, etc. The preparation process and material selection are conventional settings in the field and will not be repeated here.

Specifically, the cooling part 13 is made of high-temperature-resistant, odorless food-grade plastic, and the filtering part 14 is made of filter cotton. The preparation process and material selection are conventional settings in this field and will not be repeated here.

More specifically, the metal sleeve 2 is made of a high-temperature-resistant, high-ductility, strong-toughness thin-body metal rolled material, such as aluminum foil, copper foil, and other high-thermal-conductivity materials. The paper tube 3 is made of a high-temperature conductive paper material. The preparation process and material selection are conventional settings in this field and will not be repeated here.

Specifically, a plurality of flow slots 1311 are evenly distributed along the circumference of the outer wall of the cooling cylinder 131. By evenly distributing a plurality of flow slots 1311, the airflow is more dispersed and balanced, further increasing the contact area between the airflow and the cooling cylinder 131, and improving the cooling and heat dissipation effect.

More specifically, a plurality of ridges 1312 are provided on the outer wall of the cooling cylinder 131, and a flow groove 1311 is formed between two adjacent ridges 1312. The above structure is simple to form and easy to process.

In one embodiment, the ridges 1312 extend linearly along the first direction, thereby facilitating smoother airflow. In another embodiment, the ridges 1312 extend spirally around the axis of the cooling cylinder 131, thereby increasing the contact area between the airflow and the cooling cylinder 131. In actual configuration, the extension pattern of the ridges 1312 can be adjusted to meet varying suction resistance requirements.

In this embodiment, the width of the flow groove 1311 gradually increases from the bottom to the groove opening, and the cross section of the ridge 1312 is rectangular. The above arrangement makes the flow groove 1311 easier to form and more convenient to process.

Specifically, the throttle plate 132 is located in the middle of the cooling cylinder 131 in the axial direction, which makes assembly easier. The ends of the smoke-generating part 12, the cooling part 13 and the filtering part 14 can be directly abutted without considering the position of the cooling part 13.

In one embodiment, a flow hole 1321 is provided at the center of the throttle plate 132, and the diameter of the flow hole 1321 can be determined according to design requirements. In another embodiment, a plurality of flow holes 1321 are evenly distributed on the throttle plate 132, so that the circulating airflow is more dispersed and smooth. In one embodiment, a single throttle plate 132 is provided, and in another embodiment, a plurality of throttle plates 132 can be provided at intervals, and the flow holes 1321 on different throttle plates 132 are staggered.

In this embodiment, the cooling cylinder 131 and the throttle plate 132 are integrally formed. The cross section of the middle channel of the cooling cylinder 131 is circular, and the throttle plate 132 is a disc structure.

Specifically, the axial length of the metal sleeve 2 is equal to the sum of the lengths of the plug part 11, the smoke-generating part 12, and the cooling part 13. The above arrangement allows the plug part 11, the smoke-generating part 12, and the cooling part 13 to be completely wrapped in the metal sleeve 2, making the structure safer.

More specifically, the axial length of the paper tube 3 is equal to the combined lengths of the filter section 14 and the cooling section 13. This arrangement ensures that the filter section 14 is completely enclosed by the paper tube 3, creating a safer structure. Furthermore, the paper tube 3 extends outside the metal sleeve 2 to completely cover the cooling section 13, further reliably connecting the plug section 11, the smoke generating section 12, the cooling section 13, and the filter section 14 together more securely.

In this embodiment, the diameter of the filter portion 14 is equal to the outer diameter of the metal sleeve 2, and the filter portion 14 abuts against one end of the metal sleeve 2. The above arrangement makes the positioning of the metal sleeve 2 more accurate and the outer wall of the paper tube 3 more flat.

1: Connector assembly 11: Plug 12: Smoke generator 13: Cooling unit 131: Cooling cylinder 1311: Flow channel 1312: Ribbon 132: Throttle plate 1321: Flow hole 14: Filter 2: Metal sleeve 3: Paper tube

Figure 1 is a schematic diagram of the structure of a heat-not-burn incense bomb according to an embodiment of the present invention; Figure 2 is a cross-sectional view of the heat-not-burn incense bomb according to an embodiment of the present invention; Figure 3 is an enlarged view of point A in Figure 2; Figure 4 is a schematic diagram of the structure of the heat-not-burn incense bomb according to an embodiment of the present invention, omitting the paper tube; Figure 5 is a schematic diagram of the structure of the heat-not-burn incense bomb according to an embodiment of the present invention, one direction after omitting the paper tube and filter; Figure 6 is a schematic diagram of the structure of the heat-not-burn incense bomb according to an embodiment of the present invention, another direction after omitting the paper tube and filter; Figure 7 is a schematic diagram of the structure of the heat-not-burn incense bomb according to an embodiment of the present invention, omitting the metal sleeve and paper tube; Figure 8 is a schematic diagram of the structure of the cooling unit according to an embodiment of the present invention. Figure 9 is a cross-sectional view of the cooling unit according to an embodiment of the present invention.

1: Serial assembly 2: Metal sleeve 3: Paper tube

Claims (5)

A heat-not-burn smoke bomb is characterized by comprising: a serial assembly (1), comprising a plug portion (11), a smoke-generating portion (12), a cooling portion (13), and a filter portion (14) abutting against each other in sequence along a first direction, wherein the cooling portion (13) comprises a cooling cylinder (131) and a throttle plate (132), wherein a flow groove (1311) is provided on the outer wall of the cooling cylinder (131), wherein the flow groove (1311) extends to both axial ends of the cooling cylinder (131), wherein the throttle plate (132) is provided in the middle channel of the cooling cylinder (131), and wherein the throttle plate (132) is provided with a flow hole (1321); A metal sleeve (2) is sleeved on the outer sides of the plug portion (11), the smoke-generating portion (12) and the cooling portion (13); and a paper tube (3) is sleeved on the outer sides of the filter portion (14) and part of the metal sleeve (2); wherein a plurality of flow grooves (1311) are uniformly distributed along the circumferential direction on the outer wall of the cooling cylinder (131); wherein a plurality of ribs (1312) are provided on the outer wall of the cooling cylinder (131), and a flow groove (1311) is formed between two adjacent ribs (1312); wherein the ribs (1312) extend spirally around the axis of the cooling cylinder (131); There are multiple throttle plates (132), and the multiple throttle plates (132) are arranged at intervals along the length direction of the cooling cylinder (131). The flow holes (1321) on different throttle plates (132) are arranged in staggered positions. A heat-not-burn fireworks bomb as described in claim 1, wherein the width of the circulation groove (1311) gradually increases from the groove bottom to the groove mouth of the circulation groove (1311). The heat-not-burn smoke bomb as described in claim 1, wherein the axial length of the metal sleeve (2) is equal to the sum of the lengths of the plug portion (11), the smoke-generating portion (12) and the cooling portion (13). A heat-not-burn firework bomb as described in claim 1, wherein the axial length of the paper tube (3) is equal to the sum of the lengths of the filter portion (14) and the cooling portion (13). A heat-not-burn firework bomb as described in any one of claims 1 to 4, wherein the diameter of the filter portion (14) is equal to the outer diameter of the metal sleeve (2), and the filter portion (14) abuts against one end of the metal sleeve (2).