EP4070674B1

EP4070674B1 - Novel electronic cigarette cartridge

Info

Publication number: EP4070674B1
Application number: EP21167064.1A
Authority: EP
Inventors: Haofeng YAO; Xianfeng XIAO
Original assignee: Shenzhen Yuanwu Technology Co Ltd
Current assignee: Shenzhen Yuanwu Techonology Co Ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2024-02-07
Anticipated expiration: 2041-04-06
Also published as: PL4070674T3; EP4070674A1; RS65355B1

Description

TECHNICAL FIELD

The present invention relates to the field of electronic cigarettes, in particular to a novel electronic cigarette cartridge.

BACKGROUND

China is the largest tobacco consumer and producer in the world, and China is one of the countries having the largest number of smokers. However, it is well known that smoking is harmful to health. Traditional cigarettes will produce tar and other poisonous substances under a high temperature (600°C-800°C). These poisonous substances not only irreversibly damage the respiratory system of humans, but also lower the immune response of humans, which causes human to suffer from serious diseases. In view of this, heat-not-burn products are developed, especially, the heat-not-burn products with herbs rather than tobacco are superior to those ordinary heat-not-burn tobacco products.
Currently, herbal cigarette cartridges available on the market have the following shortcomings: the smoke concentration is low during use, the herbal granules are likely to fall out of the heating zone, the smoke may burn the mouth due to its excessively high temperature, and the herbal cigarette cartridges have difficulties in automated production. CN112401318A discloses a wrinkle-formed filter plug and an electronic cigarette cartridge thereof. A composite cooling paper sheet prepared through a wrinkle forming process is used as the cigarette cartridge filter plug and assembled in a herbal cigarette cartridge for use. US2020/397047A1 discloses a herbal cigarette that includes a cylindrical hard paper tube, two silica gel isolation partitions with through holes and herbal cut cigarettes; wherein one of the two isolation partitions with the through holes is provided inside the cylindrical hard paper tube; an internal cavity of the cylindrical hard paper tube is divided into a filling cavity and a smoke collecting cavity by one of the isolation partitions with through holes; the herbal cut cigarettes are filled in the filling cavity; another isolation partition with the through holes is provided at an end of the cylindrical hard paper tube; the smoke collecting cavity is formed between the two isolation partitions with through holes.

SUMMARY

The shortcomings of the heat-not-burn cigarette cartridges identified in the prior art include the smoke concentration is low during use, the herbal granules are likely to fall out of the heating zone, the smoke may burn the mouth due to its excessively high temperature, and the herbal cigarette cartridges have difficulties in automated production.
In view of the above-mentioned problems, the present invention provides a novel electronic cigarette cartridge. In use, the heat in the heating zone is well retained, and the herbal granules will not fall out of the heating zone. The smoke generated after heating passes through a filter mechanism and then is divided into multiple groups to increase the contact area between the smoke and the filter, so as to cool the smoke. Then, the smoke enters the air tube to be cooled again, so that the temperature of the smoke is cooled to a moderate temperature for the human body, which greatly improves user experience. The novel electronic cigarette cartridge of the present invention has a simple structure, and can realize fully automated production during production, which greatly reduces production costs.
The present invention provides a novel electronic cigarette cartridge according to claim 1.
In the present invention, since the filter plug is provided with a vent channel, the smoke passing through the filter plug can be grouped by the vent channel to increase the contact area between the smoke and the filter plug to improve the filtering effect. Also, since the filter plug is made of rubber, and the filter plug is in an interference fit with the inner wall of the peripheral paper tube, the herbal granules will not fall into the empty tube zone, and the heat in the heating zone is retained during use, thereby increasing the produced amount of smoke. When being inhaled, the smoke is grouped and enters the empty tube zone only through the vent channel in the filter plug. Also, since the filter is made of cotton, and the filter is in an interference fit with the inner wall of the peripheral paper tube, in use, the smoke enters the empty tube zone and then is mixed with the air in the empty tube zone, and is thus cooled. Besides, since both ends of the filter plug are provided with chamfers, the filter plug can play a guiding role when assembled in the peripheral paper tube, thereby realizing automated production.
Preferably, the vent channel is further arranged on the inside or/and the periphery of the filter plug.
Preferably, the vent channel is preferably circular or square.
Preferably, the filter is made of an organic cotton material, and the filter is in an interference fit with the inner wall of the peripheral paper tube.
Preferably, the granules are herbal granules.
The present invention has the following technical effects. The filter plug is employed to retain the heat in the heating zone during use, thereby increasing the produced amount of smoke. The filter plug is employed to prevent herbal granules from falling into other zones, and to group the smoke through the small holes in the filter plug to enter the empty tube zone. By arranging the filter plug, the contact area between the smoke and the filter is increased to improve the effect of cooling the smoke. The empty tube zone is designed to mix smoke and air to cool the smoke. The filter plug is provided with chamfers for guidance, thereby realizing automated production.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of the structure of a novel electronic cigarette cartridge of the present invention; and
FIG. 2 is a schematic view of the internal structure of the novel electronic cigarette cartridge of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present invention will be further described below with reference to the drawings and embodiments.

Embodiment 1

As shown in FIG. 1, the present invention mainly includes the following components.
As shown in FIG. 1, 1-1 represents the heating zone, wherein the herbal granules are located in the heating zone, 1-2 represents the filter plug, 1-3 represents the empty tube zone, 1-4 represents the peripheral paper tube, and 1-5 represents the filter, 1-6 represents the granule sealing paper.
As shown in FIG. 1, the filter plug 1-2 is made of rubber, and is in an interference fit with the inner wall of the paper tube 1-4 to prevent granules from falling into the empty tube zone, while preventing the heat in the heating zone from dissipation during use, thereby increasing the produced amount of smoke. When being inhaled, the smoke can only enter the empty tube through the small holes in the filter plug.
As shown in FIG. 2, 2-1 represents the vent channel of the filter plug, the passing smoke is grouped by the vent channel to increase the contact area between the smoke and the filter plug to improve the filtering effect.
As shown in FIG. 1, the filter 1-5 is made of an organic cotton material, and is in an interference fit with the inner wall of the peripheral paper tube 1-4. In use, the smoke enters the empty tube zone 1-3 and is then mixed with the air in the empty tube zone 1-3, and is thus cooled.
As shown in FIG. 1, since the filter plug 1-2 is in an interference fit with the inner wall of the peripheral paper tube 1-4, the filter plug 1-2 is provided with chamfers to play a guiding role when assembled in the peripheral paper tube1-4, thereby realizing automated production.
The foregoing descriptions are only preferred embodiments of the present invention, and are further detailed descriptions of the present invention in combination with the specific preferred embodiments. It cannot be considered that the specific implementation of the present invention is limited to these descriptions.

Claims

A novel electronic cigarette cartridge, comprising a heating zone (1-1) with a front end and a rear end, said heating zone being located at one end of the electronic cigarette cartridge,
an empty tube zone (1-3), a filter (1-5) provided at the opposite end of the electronic cigarette cartridge, at the rear end of the empty tube zone, a peripheral paper tube (1-4) and a granule sealing paper (1-6), said granule sealing paper being provided at the front end of the heating zone, and a filter plug (1-2) that is located between the heating zone (1-1) and the empty tube zone (1-3), at the rear end of the heating zone, wherein the peripheral paper tube (1-4) surrounds an outer periphery of each of the heating zone (1-1), an outer periphery of the filter plug (1-2), an outer periphery of the empty tube zone (1-3) and an outer periphery of the filter (1-5); the filter plug (1-2) is provided with a vent channel (2-1);

the filter (1-5) is made of cotton; the heating zone (1-1) is filled with granules,

the filter plug (1-2) is made of rubber, and the filter plug (1-2) is in an interference fit with an inner wall of the peripheral paper tube (1-4); and both ends of the filter plug (1-2) are provided with chamfers.
The electronic cigarette cartridge according to claim 1, characterized in that, the vent channel (2-1) is arranged on an inside or/and a periphery of the filter plug (1-2).
The electronic cigarette cartridge according to claim 2, characterized in that, the vent channel (2-1) is circular or square.
The electronic cigarette cartridge according to claim 1, characterized in that, the filter (1-5) is made of an organic cotton material, and the filter (1-5) is in an interference fit with the inner wall of the peripheral paper tube (1-4).
The electronic cigarette cartridge according to any one of claims 2-4, characterized in that, the granules are herbal granules.