US-12616249-B2 - Vapor generation device

US12616249B2US 12616249 B2US12616249 B2US 12616249B2US-12616249-B2

Abstract

A vapor generation device includes a housing. The housing includes a near end and a far end opposite to each other in a length direction, the near end being provided with a first opening, and the far end being provided with a second opening. The housing is internally provided with: a cavity, located between the first opening and the second opening; and a heater, extending in an axial direction of the cavity and surrounding at least a part of the cavity, and configured to heat an inhalable material received in the cavity, at least a part of the heater close to the far end including an inner diameter-reduced region, to provide a stop for the inhalable material received in the cavity during use. In the foregoing vapor generation device, an inner diameter-reduced part of the heater abuts against the inhalable material to provide support.

Inventors

Zuqiang Qi
Weifeng GONG
Jiamao Luo
Baoling LEI
Zhongli Xu
Yonghai Li

Assignees

SHENZHEN FIRST UNION TECHNOLOGY CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20210714
Priority Date: 20200714

Claims (20)

1 . A vapor generation device, configured to heat an inhalable material to generate an aerosol for inhalation, the device comprising a housing, comprising a near end and a far end opposite to each other in a length direction, the near end being provided with a first opening, and the far end being provided with a second opening; wherein the housing is internally provided with: a cavity, located between the first opening and the second opening, the inhalable material being removably received in the cavity through the first opening, and the second opening being configured for external air to enter the cavity; and a heater, located between the first opening and the second opening, constructed to extend in an axial direction of the cavity and surround at least a part of the cavity, and configured to heat the inhalable material received in the cavity, at least a part of the heater close to the far end comprising an inner diameter-reduced region configured to be a stop of the inhalable material moved in the cavity so that the inhalable material stays outside the inner diameter reduced region, the inner diameter reduced region further configured to receive and re-vaporize direct drops from the inhalable material after the inhalable material is heated.
2 . The vapor generation device according to claim 1 , further comprising: a hollow tube, located between the heater and the second opening, and providing an airflow path between the second opening and the cavity, the hollow tube being constructed to surround at least a part of the heater close to the far end and provide support for the heater.
3 . The vapor generation device according to claim 2 , wherein an outer surface of the at least a part of the heater close to the far end is provided with a groove extending in an axial direction of the heater; and an inner wall of the hollow tube is provided with a convex edge at least partially extending into the groove, to prevent the heater from rotating around a central axis.
4 . The vapor generation device according to claim 2 , wherein the hollow tube comprises a first part close to the heater in an axial direction, and a second part close to the second opening in the axial direction; and an inner diameter of the first part is greater than an inner diameter of the second part.
5 . The vapor generation device according to claim 4 , wherein the hollow tube further comprises a third part located between the first part and the second part; and an inner diameter of the third part gradually decreases in a direction toward the second part.
6 . The vapor generation device according to claim 5 , wherein an end portion of the heater close to the far end abuts against an inner wall of the third part, to form a stop.
7 . The vapor generation device according to claim 1 , wherein an end portion of the heater close to the far end is constructed to gradually contract inwardly to form the inner diameter-reduced region.
8 . The vapor generation device according to claim 1 , wherein the heater is an induction heater capable of being penetrated by a changing magnetic field to generate heat, to heat the inhalable material; the heater comprising: a first heating section and a second heating section sequentially arranged in the axial direction, to facilitate independent heating of different parts of the inhalable material; a first metal material, connected to the first heating section; a second metal material, connected to the second heating section; and a third metal material, having a material different from that of the first metal material and the second metal material, wherein a first thermocouple is formed between the first metal material and the third metal material to sense a temperature of the first heating section, and a second thermocouple is formed between the second metal material and the third metal material to sense a temperature of the second heating section.
9 . The vapor generation device according to claim 8 , wherein the heater further comprises a third heating section located between the first heating section and the second heating section; and the third heating section avoids the changing magnetic field, and generates heat by receiving heat transferred from the first heating section and the second heating section to heat the inhalable material.
10 . The vapor generation device according to claim 9 , wherein the third metal material is connected to the third heating section.
11 . The vapor generation device according to claim 3 , wherein the hollow tube comprises a first part close to the heater in an axial direction, and a second part close to the second opening in the axial direction; and an inner diameter of the first part is greater than an inner diameter of the second part.
12 . The vapor generation device according to claim 11 , wherein the hollow tube further comprises a third part located between the first part and the second part; and an inner diameter of the third part gradually decreases in a direction toward the second part.
13 . The vapor generation device according to claim 12 , wherein an end portion of the heater close to the far end abuts against an inner wall of the third part, to form a stop.
14 . The vapor generation device according to claim 2 , wherein an end portion of the heater close to the far end is constructed to gradually contract inwardly to form the inner diameter-reduced region.
15 . The vapor generation device according to claim 3 , wherein an end portion of the heater close to the far end is constructed to gradually contract inwardly to form the inner diameter-reduced region.
16 . The vapor generation device according to claim 2 , wherein the heater is an induction heater capable of being penetrated by a changing magnetic field to generate heat, to heat the inhalable material; the heater comprising: a first heating section and a second heating section sequentially arranged in the axial direction, to facilitate independent heating of different parts of the inhalable material; a first metal material, connected to the first heating section; a second metal material, connected to the second heating section; and a third metal material, having a material different from that of the first metal material and the second metal material, wherein a first thermocouple is formed between the first metal material and the third metal material to sense a temperature of the first heating section, and a second thermocouple is formed between the second metal material and the third metal material to sense a temperature of the second heating section.
17 . The vapor generation device according to claim 16 , wherein the heater further comprises a third heating section located between the first heating section and the second heating section; and the third heating section avoids the changing magnetic field, and generates heat by receiving heat transferred from the first heating section and the second heating section to heat the inhalable material.
18 . The vapor generation device according to claim 17 , wherein the third metal material is connected to the third heating section.
19 . The vapor generation device according to claim 3 , wherein the heater is an induction heater capable of being penetrated by a changing magnetic field to generate heat, to heat the inhalable material; the heater comprising: a first heating section and a second heating section sequentially arranged in the axial direction, to facilitate independent heating of different parts of the inhalable material; a first metal material, connected to the first heating section; a second metal material, connected to the second heating section; and a third metal material, having a material different from that of the first metal material and the second metal material, wherein a first thermocouple is formed between the first metal material and the third metal material to sense a temperature of the first heating section, and a second thermocouple is formed between the second metal material and the third metal material to sense a temperature of the second heating section.
20 . The vapor generation device according to claim 19 , wherein the heater further comprises a third heating section located between the first heating section and the second heating section; and the third heating section avoids the changing magnetic field, and generates heat by receiving heat transferred from the first heating section and the second heating section to heat the inhalable material.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a 35 U.S.C. § 371 National Phase conversion of International (PCT) Patent Application No. PCT/CN2021/106313, filed on Jul. 14, 2021, which claims priority to Chinese Patent Application No. 202021386153.1, filed with the China National Intellectual Property Administration on Jul. 14, 2020 and entitled “VAPOR GENERATION DEVICE”, which is incorporated herein by reference in its entirety. The PCT International Patent Application was filed and published in Chinese. TECHNICAL FIELD This application relates to the field of heat-not-burn e-cigarette device technologies, and in particular, to a vapor generation device. BACKGROUND Tobacco products (such as cigarettes and cigars) burn tobacco during use to produce tobacco smoke. Attempts are made to replace these tobacco-burning products by manufacturing products that release compounds without being burnt. An example of the products is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products, where the non-tobacco products may or may not contain nicotine. As the related art, there is a heating device for heating a tobacco product by peripheral heating provided in Invention Patent No. 201680037678.4. Specifically, the heating device heats, through a tubular heater, tobacco products accommodated in a tubular hollow of the heater. The heating device is provided with a hollow tube extending into the tubular heater, a front end of the tobacco product inserted into the tubular heater abuts against the hollow tube to be fixed, and the condensate of an aerosol drops onto the hollow tube and then seeps out of a housing, which causes pollution. SUMMARY To solve the problem of condensate pollution in the related art, embodiments of this application provide a vapor generation device, configured to heat an inhalable material to generate an aerosol for inhalation, the vapor generation device including a housing, including a near end and a far end opposite to each other in a length direction, the near end being provided with a first opening, and the far end being provided with a second opening; where the housing is internally provided with: a cavity, located between the first opening and the second opening, the inhalable material being removably received in the cavity through the first opening, and the second opening being configured for external air to enter the cavity; and a heater, located between the first opening and the second opening, constructed to extend in an axial direction of the cavity and surround at least a part of the cavity, and configured to heat the inhalable material received in the cavity, at least a part of the heater close to the far end including an inner diameter-reduced region, to provide a stop for the inhalable material received in the cavity during use. In the foregoing vapor generation device, an inner diameter-reduced part of the heater abuts against the inhalable material to provide support. In this way, scraps or condensate flowing out of an end portion of the inhalable material can be at least partially received by the inner diameter-reduced part of the heater to be re-vaporized, thereby reducing the pollution caused by direct seepage of the condensate. In a more exemplary implementation, the vapor generation device further includes: a hollow tube, located between the heater and the second opening, and providing an airflow path between the second opening and the cavity, the hollow tube being constructed to surround at least a part of the heater close to the far end, and provide support for the heater. In a more exemplary implementation, an outer surface of the at least a part of the heater close to the far end is provided with a groove extending in an axial direction of the heater; and an inner wall of the hollow tube is provided with a convex edge at least partially extending into the groove, to prevent the heater from rotating around a central axis. In a more exemplary implementation, the hollow tube includes a first part close to the heater in an axial direction, and a second part close to the second opening in the axial direction; and an inner diameter of the first part is greater than an inner diameter of the second part. In a more exemplary implementation, the hollow tube further includes a third part located between the first part and the second part; and an inner diameter of the third part gradually decreases in a direction toward the second part. In a more exemplary implementation, an end portion of the heater close to the far end abuts against an inner wall of the third part, to form a stop. In a more exemplary implementation, an end portion of the heater close to the far end is constructed to gradually contract inwardly to form the inner diameter-reduced region. In a more exemplary implementation, the heater is an induction heater capable of being penetrated by a changing magnetic f