CIGARETTE HEATING DEVICE

Abstract

A cigarette heating device includes a cigarette holder, a heating cavity and a base which are connected in sequence. A top end of the heating cavity is communicated with the cigarette holder, the heating cavity is connected with a power supply device, and the power supply device is disposed at the base. The heating cavity includes a shell and a heating assembly for heating and baking a cigarette, the heating assembly is electrically connected with the power supply device, the shell surrounds an outer side of the heating assembly, and two ends of the shell are connected with the cigarette holder and the base, respectively. An air passage is disposed at a bottom end of the shell, and the heating cavity is communicated with an external environment through the air passage for air to enter and exit the heating cavity.

Claims

1. A cigarette heating device, comprising a cigarette holder, a heating cavity and a base which are connected in sequence, wherein a top end of the heating cavity is communicated with the cigarette holder, the heating cavity is connected with a power supply device, and the power supply device is disposed at the base, the heating cavity comprises a shell and a heating assembly for heating and baking a cigarette, the heating assembly is electrically connected with the power supply device, the shell surrounds an outer side of the heating assembly, and two ends of the shell are connected with the cigarette holder and the base, respectively; and an air passage is disposed at a bottom end of the shell, and the air passage communicates the heating cavity with an external environment for air to enter and exit the heating cavity.

2. The cigarette heating device according to claim 1, wherein an air gap is disposed between the heating assembly and the shell, and a width of the air gap ranges from 0.5 mm to 1.5 mm.

3. The cigarette heating device according to claim 2, wherein the heating assembly comprises a heating body, a heating pedestal and a heat insulator, the heating body is disposed on a top surface of the heating pedestal and is configured for being inserted into the cigarette for heating; and the heat insulator is disposed at a periphery of the heating body and is capable of accommodating the cigarette, and the heat insulator is detachably connected with the heating pedestal.

4. The cigarette heating device according to claim 3, wherein the shell has a hollow structure, and the shell is detachably connected with the heat insulator.

5. The cigarette heating device according to claim 4, wherein the air passage comprises a first air hole and a second air hole, and an air buffer cavity for buffering air reserve is disposed between the first air hole and the second air hole.

6. The cigarette heating device according to claim 5, wherein the heat insulator is provided with a plurality of third air holes, and the third air holes are uniformly distributed around a periphery of the heat insulator, and communicate the air gap with an inner wall of the heat insulator at the same time.

7. The cigarette heating device according to claim 3, wherein the heat insulator is further provided with an expansion cavity for temporarily storing baking smoke, and the expansion cavity is annular, and is disposed around an outer wall of the cigarette.

8. The cigarette heating device according to claim 1, wherein the base is provided with a hollow layer for heat insulation, the hollow layer is located between the heating cavity and the power supply device, and a height of the hollow layer ranges from 1.5 mm to 3 mm.

9. The cigarette heating device according to claim 5, wherein a size of the first air hole is not equal to a size of the second air hole.

10. The cigarette heating device according to claim 5, wherein a size of the first air hole is equal to a size of the second air hole, and the first air hole and the second air hole are located on a same horizontal line.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a structure sectional view of Embodiment 1.

[0019] FIG. 2 is a structure exploded view of the present invention.

[0020] FIG. 3 is a structure sectional view of a heat insulator.

[0021] FIG. 4 is a schematic structure view of a shell.

[0022] FIG. 5 is a structure sectional view of Embodiment 2.

[0023] In the drawings, 1 refers to cigarette holder, 2 refers to heating cavity, 3 refers to base, 4 refers to cigarette, 5 refers to shell, 6 refers to heating assembly, 7 refers to air passage, 8 refers to air gap, 9 refers to hollow layer, 61 refers to heating body, 62 refers to heating pedestal, 63 refers to heat insulator, 71 refers to first air hole, 72 refers to second air hole, 73 refers to air buffer cavity, 631 refers to third air hole, and 632 refers to expansion cavity.

DESCRIPTION OF THE EMBODIMENTS

[0024] The drawings are only for illustrative purposes, and cannot be understood as limiting the patent. In order to better illustrate the embodiments, some parts in the drawings may be omitted, enlarged or reduced, and do not represent actual sizes of products. For those skilled in the art, it is understandable that some well-known structures in the drawings and the descriptions may be omitted. The positional relationship described in the drawings is only for illustrative purposes, and cannot be understood as limiting the patent.

Embodiment 1

[0025] As shown in FIG. 1 to FIG. 2, this embodiment provides a cigarette heating device, which includes a cigarette holder 1, a heating cavity 2 and a base 3 which are connected in sequence. A top end of the heating cavity 2 is communicated with the cigarette holder 1, the heating cavity 2 is connected with a power supply device, and the power supply device is disposed at the base 3. Specifically, the power supply device includes a rechargeable battery, a power adapter and a charging interface which are connected in series, the charging interface is a micro USB interface, and the charging interface may be disposed on a bottom surface of the base 3.

[0026] The heating cavity 2 includes a shell 5 and a heating assembly 6 for heating and baking a cigarette 4, and the heating assembly 6 is electrically connected with the power supply device.

[0027] Specifically, as shown in FIG. 4, the shell 5 has a hollow structure, which is disposed around an outer side of the heating assembly 6, an air gap 8 of 1 mm is disposed between the shell 5 and the heating assembly 6, and two ends of the shell 5 are connected with the cigarette holder 1 and the base 3, respectively. Meanwhile, a plurality of air passages 7 are disposed at the bottom end of the shell 5. In this embodiment, the air passage 7 is divided into a first air hole 71 and a second air hole 72. Further, a size of the first air hole 71 is equal to a size of the second air hole 72, and the first air hole and the second air hole are located on a same horizontal line. Moreover, an air buffer cavity 73 for buffering air reserve is also disposed between the first air hole 71 and the second air hole 72.

[0028] In addition, the heating assembly 6 includes a heating body 61, a heating pedestal 62 and a heat insulator 63. The heating body 61 is disposed on a top surface of the heating pedestal 62 and is used for being inserted into the cigarette 4 for heating. The heat insulator 63 is disposed on a periphery of the heating body 61 and is capable of accommodating the cigarette 4, and the heat insulator 62 is detachably connected with the heating pedestal 62. Meanwhile, the heat insulator 63 is connected and fixed with the shell 5 by a thread. Specifically, as shown in FIG. 3, the heat insulator 63 is provided with a plurality of third air holes 631, and the third air holes 631 are uniformly distributed around a periphery of the heat insulator 63, and communicate the air gap 8 with an inner wall of the heat insulator 63 at the same time. The air enters from the first air hole 71, passes through the air buffer cavity 73, then enters the air gap 8 from the second air hole 72, and finally enters the heat insulator 63 from the third air hole 631, and the air is supplied to the cigarette 4 for heating and baking.

[0029] Further, the heat insulator 63 is further provided with an expansion cavity 632 for temporarily storing baking smoke, and the expansion cavity 632 is annular, and is disposed around an outer wall of the cigarette 4. When the cigarette 4 is heated and baked to generate the smoke, the expansion cavity 632 expands a smoke mixing space, so that the smoke has a sufficient space for fully diffusing and mixing. Meanwhile, the smoke is effectively stored, and a stability of a taste is ensured under a condition of continuously sucking the smoke.

[0030] Further, the base 3 is provided with a hollow layer 9 for heat insulation, the hollow layer 9 is located between the heating cavity 2 and the power supply device, and a height of the hollow layer is 2 mm in this embodiment. Specifically, connecting brackets are disposed around a periphery of the hollow layer 9, a middle part is hollowed, and the air is used for heat insulation. Moreover, a pipeline is also disposed in the hollow layer for connecting the heating cavity 6 with the power supply device. The hollow layer 9 is disposed between the heating cavity 2 and the power supply device, which is mainly used for reducing heat transfer from the heating cavity 2 to the power supply device, thus avoiding the power supply device from being abnormal due to overheating.

[0031] A specific implementation manner of this embodiment is as follows. When in use, the cigarette 4 is extended into the heat insulator 63 of the heating cavity 2 from a top part of the cigarette holder 1, and abuts against a top surface of the heating pedestal 62, and the heating body 61 is inserted into the cigarette 4. The cigarette heating device is started up, the air enters from the first air hole 71 at the bottom end of the shell 5, passes through the air buffer cavity 73, then enters the air gap 8 in the heating cavity 2 from the second air hole 72, and finally enters the heat insulator 63 from the third air hole 631 at a side wall of the heat insulator 63, and the air is supplied to the cigarette 4 for heating and baking. The cigarette 4 generates the smoke after heated and baked, and a part of smoke is stored in the expansion cavity 632, so that the smoke has a sufficient space for fully diffusing and mixing, and the stability of the taste is ensured under the condition of continuously sucking the smoke. The air buffer cavity 73 buffers air in the heating cavity 2 and air in the external environment to ensure sufficient air reserve. Moreover, the air buffer cavity strengthens an airflow vortex, and effectively blocks leakage caused by reverse flow of the smoke. In addition, heat insulation is strengthened by disposing the air gap 8 and the hollow layer 9, so that the user does not feel too hot when touching. Meanwhile, heat transfer from the heating cavity 2 to the power supply device is reduced, thus avoiding the power supply device from being abnormal due to overheating.

Embodiment 2

[0032] As shown in FIG. 5, this embodiment also provides a cigarette heating device, which has a structure and a principle similar to that in the Embodiment 1, except that in this embodiment, a plurality of air passages 7 are disposed at the bottom end of the shell 5 of the heating cavity 2, and the air passages 7 are directly communicated with the air gap 8 in the heating cavity 2 and the external environment for the air to enter and exit the heating cavity 2.

[0033] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, but are not intended to limit the implementations of the present invention. For those of ordinary skills in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary or possible to exhaust all the implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall all fall within the scope of protection claimed by the present invention.