Heating cup with end heating function

Abstract

The utility model belongs to the technical field of heating non-combustion cigarettes, and particularly relates to an end heating cup which comprises a positioning portion, a containing cavity and a heating portion from top to bottom. The positioning part comprises a boss extending outwards from the top of the containing cavity, and a plurality of first vent holes are formed in the boss. The containing cavity comprises an upper-section cylinder and a lower-section cylinder, the outer diameter and the inner diameter of the upper-section cylinder are smaller than those of the lower-section cylinder respectively, and a second vent hole is formed in the upper portion of the lower-section cylinder; the heating part is arranged in the containing cavity and located on the lower portion of the second vent hole. Compared with the prior art, on one hand, air preheating can be achieved in the side wall air inlet process, the heating uniformity is improved, on the other hand, the cavity wall of the containing cavity makes direct contact with the smoke cartridge to preheat the smoke cartridge, and the heating efficiency is greatly optimized. According to the heating cup with the novel structure, the heating uniformity of the smoke cartridge and the smoking experience are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of heated non-combustible cigarette technology, and specifically relates to a heating cup with end heating. Background Technology

[0002] Heated cigarettes are healthier than traditional cigarettes. The heating element is the core component of heated cigarette devices. Existing heated cigarette devices include a heating tube and a heating cup. The heating tube heats the cigarette by printing conductive paste on the side wall. This structure results in uneven and insufficient heating of the central area of ​​the cigarette cartridge. The heating cup has a heating mesh at the bottom, which heats the air and provides an airflow channel. Inhalation causes the hot air to rise and heat the cigarette cartridge. This heating method makes the bottom prone to scorching in the later stages of inhalation, and the smoke production time is short.

[0003] In view of this, the present invention aims to provide a heating cup with end heating, which, through a clever structural design, controls the airflow speed, prolongs the burning time of the cigarette cartridge, and the heated cup cavity has a preheating effect on the air in the air guiding channel after heat conduction. Utility Model Content

[0004] The purpose of this invention is to provide a heating cup with end heating in order to address the shortcomings of the existing technology. Through its ingenious structural design, it controls the airflow speed, prolongs the burning time of the e-cigarette cartridge, and the heated cup cavity has a preheating effect on the air in the air guiding channel after heat conduction.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heating cup with end heating includes, from top to bottom, a positioning part, a receiving cavity, and a heating part;

[0007] The positioning part includes a boss extending outward from the top of the receiving cavity, and the boss has several vent holes.

[0008] The cavity includes an upper cylinder and a lower cylinder. The outer diameter and inner diameter of the upper cylinder are smaller than those of the lower cylinder, respectively. The upper part of the lower cylinder has two vent holes.

[0009] The heating element is located inside the receiving cavity and below the second vent. The receiving cavity is used to hold the cigarette cartridge.

[0010] After assembling the lightweight heating cup into the smoking device, a heat insulation component is fitted onto the outside of the heating cup. Because the outer diameter of the upper cylindrical section of the receiving cavity is smaller than that of the lower cylindrical section, there is a gap between the heat insulation component and the upper cylindrical section of the receiving cavity; this gap serves as an air passage. During inhalation, cold air enters the gap between the heat insulation component and the upper cylindrical section of the receiving cavity through vent hole one on the positioning part, and then enters the receiving cavity through vent hole two on the upper part of the lower cylindrical section of the receiving cavity. After being heated by the heating part, it enters the tobacco cartridge. Compared to existing heating cups, this design controls the airflow speed, prolongs the tobacco cartridge burning time, and the heated receiving cavity of the heating cup has a preheating effect on the air in the air passage.

[0011] As an improvement to the heating cup with end heating of the present invention, a supporting part is provided above the heating part. The supporting part is one or more protrusions extending inward from the inner wall of the receiving cavity. The supporting part is located inside the receiving cavity, below the second vent and above the heating part. The supporting part, which is provided in the form of a protrusion, prevents the tail of the tobacco cartridge from directly contacting the heating part, forming a cavity, thereby creating a tail air guiding space. The airflow enters the cavity of the lower cylindrical section of the receiving cavity through the second vent, is heated, and then enters the tobacco cartridge upward. This design avoids the tobacco cartridge from burning and reduces airflow resistance.

[0012] As an improvement to the end-heated heating cup of the present invention, a sealing part is provided below the heating part for fixing the heating element, located in the lower part of the heating part and inside the receiving cavity. The sealing part can be a conventional sealing and fixing structure, including sealing rings, welding, etc.

[0013] As an improvement to the heating cup with end heating of the present invention, the encapsulation part includes a locking copper ring and a groove adapted thereto. The locking copper ring is a metal semicircle with hooks at both ends. During assembly, in the first state, pinching the hooks at both ends can make the metal semicircle become approximately elliptical. At this time, the locking copper ring is in the second state, and it is inserted into the groove on the inner wall of the receiving cavity below the heating part. After releasing the hooks at both ends, the diameter of the metal semicircle returns to the first state, fitting against the groove, thus achieving fixed encapsulation of the heating part.

[0014] As an improvement to the heating cup with end heating of the present invention, the heating part is a heating mesh or a heating plate.

[0015] As an improvement to the end-heating cup of the present invention, a circular base is provided between the supporting part and the heating part. The circular base is preferably integrally formed with the receiving cavity. On the one hand, the base avoids excessive temperature at the tail of the tobacco cartridge, which could cause scorching later. On the other hand, it can increase the contact area between the heating part and the receiving cavity, enhance the heat transfer effect between the heating part and the receiving cavity, and increase the temperature of the cavity wall. This not only helps to preheat the air in the air guide channel, but also helps the upper cylindrical part of the receiving cavity to heat the tobacco cartridge, further improving the heating uniformity and heating efficiency.

[0016] As an improvement to the heating cup with end heating of the present invention, the circular base is integrally formed with the inner wall of the receiving cavity.

[0017] As an improvement to the heating cup with end heating of the present invention, the locking copper ring is a metal semicircle with hook-shaped ends, and the groove is located on the inner wall of the receiving cavity below the heating part.

[0018] As an improvement to the heating cup with end heating of the present invention, the upper cylindrical section has an elliptical or circular cross-section. An elliptical cross-section is preferred.

[0019] As an improvement to the heating cup with end heating of the present invention, both the inner and outer surfaces of the receiving cavity are polished with sandpaper of 800 grit or higher to make them smooth surfaces.

[0020] Beneficial effects

[0021] This invention proposes a novel heating cup structure. Through a variable-diameter cavity that is narrower at the top and wider at the bottom, combined with upper and lower vents, air is drawn from the side wall to the tail of the tobacco cartridge. This zigzag airflow channel, combined with the thermal conductivity of the metal heating cup, allows for preheating of the air during side wall intake. Compared to existing heating tubes with unidirectional airflow channels that cannot preheat the air, this improves heating uniformity. Furthermore, the direct contact between the cavity wall and the tobacco cartridge preheats the cartridge, significantly optimizing heating efficiency compared to heating cups that cannot preheat the cartridge. This novel heating cup structure greatly enhances the uniformity of tobacco cartridge heating and the vaping experience. Attached Figure Description

[0022] Figure 1 This is the front view of the present invention.

[0023] Figure 2 This is a top-down view of the present invention.

[0024] Figure 3 This is a three-dimensional cross-sectional view of the bottom of this utility model.

[0025] Figure 4 This is a three-dimensional cross-sectional view of the top of this utility model.

[0026] Figure 5 This is a schematic diagram of the positioning copper ring of this utility model.

[0027] Figure 6 This is a cross-sectional view of the present invention after the smoke cartridge is assembled.

[0028] Figure 7 This is a cross-sectional view of the present invention after the smoke cartridge is assembled.

[0029] Among them, 1: positioning part; 1-1: boss; 1-2: vent hole one; 2: receiving cavity; 2-1: upper cylinder; 2-2: lower cylinder; 2-3: vent hole two; 3: bearing part; 4: base; 5: heating part; 6: sealing part; 6-1: locking copper ring; 6-2: groove; 7: e-cigarette cartridge. Detailed Implementation

[0030] Example 1

[0031] This embodiment provides a heating cup with end heating, which includes, from top to bottom, a positioning part 1, a receiving cavity 2, a supporting part 3, a circular base 4, a heating part 5, and a sealing part 6. The supporting part 3, the base 4, the heating part 5, and the sealing part 6 are all disposed in the receiving cavity 2.

[0032] The positioning part 1 is located on the top outer surface of the receiving cavity 2, and includes an outwardly extending boss 1-1, on which a plurality of vent holes 1-2 are provided.

[0033] The receiving cavity 2 is used to receive the smoke cartridge 7. The receiving cavity 2 includes an upper cylindrical section 2-1 and a lower cylindrical section 2-2. The outer diameter and inner diameter of the upper cylindrical section 2-1 are smaller than the outer diameter and inner diameter of the lower cylindrical section 2-2, respectively. The upper part of the lower cylindrical section 2-2 has a vent hole 2-3.

[0034] The lower cylindrical section 2-2 has a support part 3 in the middle, which is one or more protrusions extending inward on the inner wall of the receiving cavity 2;

[0035] The circular base 4 is located below the support part 3, and the circular base 4 is integrally formed with the inner wall of the receiving cavity 2;

[0036] The heating element 5 is located below the circular base 4. The heating element 5 is a heating plate, and the heating plate is connected to a wire.

[0037] The encapsulation part 6 is located below the heating part 5. The encapsulation part 6 includes a locking copper ring 6-1 and a groove 6-2. The locking copper ring 6-1 is a metal semicircle with hooks at both ends. During assembly, in the first state, pinching the hooks at both ends can reduce the diameter of the metal semicircle. At this time, the locking copper ring 6-1 is in the second state, and it is inserted into the groove 6-2 on the inner wall of the receiving cavity 2 below the heating part 5. After releasing the hooks at both ends, the diameter of the metal semicircle is restored, returning to the first state, and it fits into the groove 6-2 to achieve the fixed encapsulation of the heating part 5.

[0038] The heating cup is made of aluminum alloy; the inner and outer surfaces of the receiving cavity 2 are polished with sandpaper of 800 grit or higher.

[0039] Example 2

[0040] This embodiment provides a heating cup with end heating, which includes, from top to bottom, a positioning part 1, a receiving cavity 2, a supporting part 3, a heating part 5, and a sealing part 6. The supporting part 3, the heating part 5, and the sealing part 6 are all disposed in the receiving cavity 2.

[0041] The positioning part 1 is located on the top outer surface of the receiving cavity 2, and includes an outwardly extending boss 1-1, on which a plurality of vent holes 1-2 are provided.

[0042] The receiving cavity 2 is used to receive the smoke cartridge 7. The receiving cavity 2 includes an upper cylindrical section 2-1 and a lower cylindrical section 2-2. The outer diameter and inner diameter of the upper cylindrical section 2-1 are smaller than the outer diameter and inner diameter of the lower cylindrical section 2-2, respectively. The upper part of the lower cylindrical section 2-2 has a vent hole 2-3.

[0043] The lower cylindrical section 2-2 has a support part 3 in the middle, which is one or more protrusions extending inward on the inner wall of the receiving cavity 2;

[0044] The heating element 5 is located below the support element 3. The heating element 5 is a heating plate, and the heating plate is connected to a wire.

[0045] The encapsulation part 6 is located below the heating part 5. The encapsulation part 6 includes a locking copper ring 6-1 and a groove 6-2. The locking copper ring 6-1 is a metal semicircle with hooks at both ends. During assembly, in the first state, pinching the hooks at both ends can reduce the diameter of the metal semicircle. At this time, the locking copper ring is in the second state, and it is inserted into the groove 6-2 on the inner wall of the receiving cavity 2 below the heating part. After releasing the hooks at both ends, the diameter of the metal semicircle is restored, returning to the first state, and it fits into the groove 6-2 to achieve the fixed encapsulation of the heating part 5.

[0046] The heating cup is made of aluminum alloy; both the inner and outer surfaces of the cavity are polished with sandpaper of 800 grit or higher.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating cup with end heating, characterized in that, From top to bottom, it includes a positioning part (1), a receiving cavity (2), and a heating part (5); The positioning part (1) includes a boss (1-1) extending outward from the top of the receiving cavity (2), and the boss (1-1) has a plurality of vent holes (1-2); The cavity (2) includes an upper cylinder (2-1) and a lower cylinder (2-2). The outer diameter and inner diameter of the upper cylinder (2-1) are smaller than the outer diameter and inner diameter of the lower cylinder (2-2), respectively. The upper part of the lower cylinder (2-2) has a second vent hole (2-3). The heating part (5) is located inside the receiving cavity (2) and below the second vent (2-3).

2. The heating cup with end heating according to claim 1, characterized in that, The heating part (5) has a support part (3) above it, which is one or more protrusions extending inward from the inner wall of the receiving cavity (2).

3. The heating cup with end heating according to claim 1, characterized in that, The heating part (5) has a sealing part (6) below it.

4. The end-heated heating cup according to claim 3, characterized in that, The encapsulation part (6) includes a locking copper ring (6-1) and a groove (6-2) adapted thereto.

5. The end-heated heating cup according to claim 1, characterized in that, The heating part (5) is a heating mesh or heating plate.

6. The end-heated heating cup according to claim 1, characterized in that, A circular base (4) is provided between the support part (3) and the heating part (5).

7. The end-heated heating cup according to claim 6, characterized in that, The circular base (4) is integrally formed with the inner wall of the receiving cavity (2).

8. The end-heated heating cup according to claim 4, characterized in that, The locking copper ring (6-1) is a metal semicircle with hooks at both ends, and the groove (6-2) is located on the inner wall of the receiving cavity (2) below the heating part (5).

9. The end-heated heating cup according to claim 1, characterized in that, The upper cylindrical section (2-1) has an elliptical or circular cross-section.

10. The end-heated heating cup according to claim 1, characterized in that, The inner and outer surfaces of the cavity (2) are polished with sandpaper of 800 grit or higher.

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