A type of surround-heating cup

Abstract

This utility model belongs to the field of heated tobacco product technology, and specifically relates to a heating cup with surround heating, including a heating chamber, a receiving chamber, a heat transfer part, and a heating part. The upper part of the heating chamber is used to receive the tobacco cartridge, which is the receiving chamber. The lower part of the heating chamber is provided with the heat transfer part and the heating part. The inner wall of the heating chamber has several longitudinally extending grooves. The heating part is located below the heat transfer part and is in contact with the heating part. The heat transfer part is a sheet-like metal that is fixedly in contact with the inner wall of the heating chamber on all sides. The side of the heating chamber and the heat transfer part can heat the tobacco cartridge simultaneously. The inner wall of the heating chamber with grooves can preheat the air, and the heat transfer part reheats the air, forming surround heating, which improves heating efficiency and smoke output speed from multiple directions. Compared with the heating devices in the prior art that only have a heating mesh at the bottom, the heating cup of this utility model greatly improves the heating uniformity.

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 an enclosed heating system. Background Technology

[0002] Heating cups are commonly used heating components in HNB devices. Existing heating cups usually have a heating element at the bottom air inlet. After the heating element heats the air, it draws in the hot air and moves it from bottom to top. The heat can only be transferred from the bottom to the top, which results in uneven heating.

[0003] In view of this, the present invention aims to provide a heating cup with a surround heating design, which has a novel structure to increase the heating area of ​​the heating cup, thereby improving the uniformity of heating. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a heating cup with a surround heating design. This cup has a novel structure to increase the heating area and thus improve the uniformity of heating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heating cup includes a heating chamber, a heat transfer section, and a heating section. The upper part of the heating chamber is a receiving chamber for receiving a cigarette cartridge. Several longitudinally extending grooves are provided on the inner wall of the heating chamber. The heat transfer section is located inside the heating chamber and below the receiving chamber. The heat transfer section is a sheet-like metal whose periphery is fixedly in contact with the inner wall of the heating chamber. The heating section is located below the heat transfer section and is in contact with the heating section.

[0007] Preferably, the receiving cavity is a hollow tube with an outer circular shape and an inner elliptical shape. The minor axis of the inner elliptical cavity is slightly smaller than the diameter of the compatible tobacco cartridge. In actual use, the cylindrical tobacco cartridge is appropriately compressed into an elliptical cylinder and then placed into the heating cup. In the heating cup, the tobacco cartridge is kept in a slightly compressed state. At this time, the inside of the tobacco cartridge is more compact, which helps the heat transfer inside the tobacco cartridge. In addition, the metal receiving cavity and the tobacco cartridge can also make closer contact, improving the heating effect.

[0008] The groove 1 serves as an airflow channel. During inhalation, the airflow enters the tail of the tobacco cartridge from the top of the groove 1 and passes through the groove 1. After being preheated by the side wall of the heating chamber and the circular heat transfer part, the airflow enters the tobacco cartridge from the tail and is then drawn upwards.

[0009] The heat transfer part can be integrally formed with the heating cavity, or formed separately and then fixed using conventional manufacturing processes. Preferably, the circular heat transfer part is integrally formed with the heating cavity. The heat transfer part can be a circular or elliptical metal sheet, adapted to the interior of the heating cavity. The lower surface of the heat transfer part is in contact with the heating part, providing a large heat transfer area. The heat from the heating part can be quickly and efficiently transferred to the heat transfer part, which then transfers the heat to the heating cavity. Both the heating part and the circular heat transfer part can simultaneously transfer heat to the cavity wall, thereby significantly increasing the temperature of the sidewall of the heating cavity. Without a heat transfer part, the heating part and the heating cavity only have line contact, resulting in a small contact area, poor heat transfer to the sidewall of the heating cavity, and poor overall heating effect. The heat transfer part creates a heating cup with a uniform temperature on the sides and bottom, providing a surrounding heating effect. Furthermore, while the sidewall heats the tobacco cartridge, it also preheats the air within the groove, further improving heating efficiency and smoke output speed.

[0010] Preferably, inside the heating chamber, a support portion is also provided above the heat transfer section. The support portion consists of several protrusions extending inward from the inner wall of the heating chamber. The support portion is used to support the cartridge, thereby forming a cavity between the tail of the cartridge and the circular heat transfer section, and air flows into the cavity along the groove.

[0011] Preferably, the boss of the support part is set to avoid the groove. That is, the groove is not set on the side of the heating chamber corresponding to the boss. The groove extends into the cavity formed by the tail of the cartridge and the heat transfer part. This setting can further reduce the suction resistance.

[0012] Preferably, the heating element is fixed by a fixing part, which includes a locking copper ring and a second groove. The locking copper ring is a metal semicircle with hooks at both ends. During assembly, pinching the hooks at both ends in the first state 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 second groove on the inner wall of the heating cavity below the heating element. After releasing the hooks at both ends, the diameter of the metal semicircle returns to the first state and fits into the second groove, thus achieving the fixed encapsulation of the heating element. Beneficial effects

[0013] Compared to existing technologies, this invention, through the setting of the heat transfer part, allows the heating chamber side and the heat transfer part to heat the e-cigarette cartridge simultaneously. Utilizing the inner wall of the heating chamber with a groove, the heating chamber side can also preheat the air, and the heat transfer part further heats the air, forming an enveloping heating effect. This not only improves heating efficiency and smoke output speed, but also significantly enhances heating uniformity compared to existing heating devices that only have a heating mesh at the bottom, avoiding the unpleasant experience of burning the e-cigarette cartridge due to overheating. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Figure 3 This is a top view of the present invention.

[0017] Figure 4 This is a cross-sectional view of the cavity in this utility model.

[0018] Figure 5 This is a schematic diagram of the positioning copper ring in this utility model. Detailed Implementation

[0019] This embodiment provides a surround-type heating cup, including a heating chamber 1, a receiving chamber 2, a heat transfer part 3, and a heating part 4;

[0020] The upper part of the heating chamber 1 is used to accommodate the cigarette cartridge, which is called the receiving chamber 2. The lower part of the heating chamber 1 is provided with a heat transfer part 3 and a heating part 4.

[0021] The inner wall of the heating chamber 1 is provided with several longitudinally extending grooves 5;

[0022] The heating part 4 is located below the heat transfer part 3, and the heat transfer part 3 is in contact with the heating part 4;

[0023] The heat transfer part 4 is a sheet of metal that is fixedly in contact with the inner wall of the heating chamber 1 on all four sides.

[0024] The receiving cavity 2 is a tubular body with an outer circular shape and an inner elliptical shape.

[0025] The heat transfer part 3 is integrally formed with the heating cavity 1, or they are formed separately and then fixedly connected.

[0026] Inside the heating chamber 1, the upper part of the heat transfer part 3 is also provided with a support part 6, which consists of several protrusions extending inward from the inner wall of the heating chamber 1.

[0027] The boss of the bearing part 6 is positioned to avoid the groove 5.

[0028] The heating part 4 is fixed by a fixing part, which includes a locking copper ring 7 and a groove 8, which is formed on the inner wall of the heating chamber 1.

[0029] The positioning copper ring 7 is a metal semicircle with hook-shaped ends.

[0030] The heat transfer part 3 is a circular or elliptical metal sheet.

[0031] 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 surround-type heating cup, characterized in that, It includes a heating chamber (1), a receiving chamber (2), a heat transfer section (3), and a heating section (4); The upper part of the heating chamber (1) is used to accommodate the cigarette cartridge, which is called the accommodating chamber (2); the lower part of the heating chamber (1) is provided with a heat transfer part (3) and a heating part (4). The inner wall of the cavity (2) is provided with several longitudinally extending grooves (5); The heating part (4) is located below the heat transfer part (3), and the heat transfer part (3) is in contact with the heating part (4); The heat transfer part (3) is a sheet of metal that is fixedly in contact with the inner wall of the heating cavity (1) on all sides.

2. A heating cup with surround heating as described in claim 1, characterized in that, The cavity (2) is a tubular body with an outer circle and an inner ellipse.

3. A heating cup with surround heating as described in claim 1, characterized in that, The heat transfer part (3) and the heating cavity (1) are integrally formed, or they are formed separately and then fixedly connected.

4. A heating cup with surround heating as described in claim 1, characterized in that, Inside the heating chamber (1), the upper part of the heat transfer part (3) is also provided with a support part (6), which is a number of protrusions extending inward from the inner wall of the heating chamber (1).

5. A heating cup with surround heating as described in claim 1, characterized in that, The boss of the bearing part (6) is set to avoid the groove (5).

6. A heating cup with surround heating as described in claim 1, characterized in that, The heating part (4) is fixed by the fixing part, which includes a locking copper ring (7) and a matching groove (8). The groove (8) is opened on the inner wall of the heating chamber (1).

7. A heating cup with surround heating as described in claim 1, characterized in that, The positioning copper ring (7) is a metal semicircle with hooks at both ends.

8. A heating cup with surround heating as described in claim 1, characterized in that, The heat transfer part (3) is a circular or elliptical metal sheet.

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