Heating assembly

Patent metadata

Field	Value
Publication number	US-12274303-B2
Application number	US-202217677956-A
Country	US
Kind code	B2
Filing date	Feb 22, 2022
Priority date	Aug 17, 2021
Publication date	Apr 15, 2025
Grant date	Apr 15, 2025

Abstract

A heating assembly includes a main body and a high-frequency control assembly. The main body includes a heating chamber provided with a first opening. The main body further includes a heating element disposed in the heating chamber. The high-frequency control assembly is disposed outside the heating chamber. When in use, a tobacco material passes through the first opening and is disposed into the heating chamber; when the high-frequency control assembly is energized, an electromagnetic filed is produced, and the heating element produces heat to heat the tobacco material.

First claim

The invention claimed is:

1. A heating assembly, comprising a main body and a high-frequency control assembly; wherein:
the main body comprises a heating chamber provided with a first opening;
the main body further comprises a heating element disposed in the heating chamber;
the heating element comprises an elongated sheet and a tube;
one end of the tube is a sealed end, and the other end of the tube is an open end;
the elongated sheet comprises a notch extending along a length of the heating element;
the tube is fixedly disposed in the notch, and the sealed end of the tube abuts against a base of the notch;
the tube comprises a first side wall, a second side wall, and a thermal air chamber surrounded by the first side wall and the second side wall;
the first side wall and the second side wall are convex with respect to the elongated sheet;
each of the first side wall and the second side wall comprises at least one first through hole;
the high-frequency control assembly is disposed outside the heating chamber;
when in use, a tobacco material passes through the first opening and is disposed into the heating chamber; and
when the high-frequency control assembly is energized, an electromagnetic filed is produced, and the heating element produces heat to heat the tobacco material.

2. The heating assembly of claim 1 , wherein the high-frequency control assembly comprises a coil and a power supply unit; the coil is configured to produce an electromagnetic field that enables the heating element to produce heat; the power supply unit is electrically connected to the coil to provide alternating current to the coil; the coil is wound into a helix with a hollow space; and the heating chamber is disposed in the hollow space.

3. The heating assembly of claim 2 , wherein the power supply unit comprises a battery and a high-frequency control board; the battery is electrically connected to the high-frequency control board to supply power to the high-frequency control board; the high-frequency control board is further electrically connected to the coil and a temperature sensor so as to provide alternating current to the coil and receive information about the temperature changes of the heating element.

4. The heating assembly of claim 3 , wherein the main body further comprises a housing and a bracket; the housing comprises a first end provided with a cavity; the bracket is disposed in the housing; the bracket comprises an empty space; and the high-frequency control assembly is disposed in the empty space and the coil is disposed in the cavity.

5. The heating assembly of claim 4 , wherein the main body further comprises a cover provided with a first end; the first end is concave to form a first recess; the first recess comprises a first bottom wall provided with a second opening; the cover further comprises an air duct communicating with the second opening; and the air duct extends into the hollow space.

6. The heating assembly of claim 5 , wherein the main body further comprises a fixing member configured to hold the tobacco material; one end of the fixing member is concave to form a second recess; the second recess comprises a second bottom wall and the first opening is disposed on the second bottom wall; the fixing member comprises a sliding member disposed in the second recess and slidable along an inner wall of the second recess; the other end of the fixing member is in the form of a necked part which is matched with an inner wall of the first recess in size and shape; the fixing member further comprises a hollow tube communicating with first opening through the necked part; the hollow tube corresponds with the first opening; and the hollow tube functions as the heating chamber.

7. The heating assembly of claim 6 , wherein the fixing member is detachably disposed in the cavity; the necked part is disposed into the first recess; the hollow tube is disposed through the second opening into the air duct; and an air channel is formed between an outer wall of the hollow tube and an inner wall of the air duct.

8. The heating assembly of claim 7 , wherein the main body further comprises a seal member disposed in one end of the air duct and configured to seal the air channel; the seal member comprises a third recess provided with a second through hole; one end of the heating element is fixedly disposed in the third recess so that the thermal air chamber communicates with the second through hole; and the temperature sensor comprises a conducting wire connected through the second through hole to the high-frequency control board.

9. The heating assembly of claim 1 , wherein the heating assembly further comprises a temperature sensor and the thermal air chamber comprises a separate chamber; the temperature sensor is disposed in the separate chamber; the heating element is in an elongated shape; the separate chamber is disposed in the middle of the heating element and extends along the length of the heating element.

Assignees

• Shenzhen Eigate Technology Co Ltd
• Aspire North America Llc

Inventors

• Liu Tuanfang

Classifications

• H05B6/108

  for heating a fluid · CPC title

• A24F40/51

  Arrangement of sensors · CPC title

• A24F40/57

  Temperature control · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24F40/48

  Fluid transfer means, e.g. pumps · CPC title