Flue-curing tobacco device and heating assembly with vacuum heat insulation effect

Abstract

The invention relates to a flue-curing tobacco device and a heating assembly with a vacuum heat insulation effect. The heating assembly comprises an outer pipe and an inner pipe. The outer pipe sleeves the inner pipe, the two ends of the outer pipe are fixedly connected to the outer wall surface of the inner pipe, and a vacuum area is formed between the inner wall surface of the outer pipe and theinner pipe. The inner pipe includes an inner pipe body and a heating circuit which is disposed on the surface of the inner pipe body and used for heating after being energized, and an axial positionof the heating circuit on the inner pipe body is located in an axial interval where the vacuum area is located. The inner pipe of the heating assembly does not participate in direct heating, the speedof heat dissipation of the inner pipe to the outside can be decreased, and rapid dissipation of heat to the outside can be avoided; in addition, the inner pipe does not participate in direct heating,there is no need to arrange a special heat insulation structure between the outer pipe and the inner pipe, the fixing mode between the outer pipe and the inner pipe can be simplified, a heating partand a heat insulation part are more compact in size, there are fewer parts, the structural design is simple, the size of a product is decreased, and the product is more convenient to carry.

Description

technical field [0001] The invention relates to the field of cigarette substitutes, more specifically, relates to a smoking appliance for baking and a heating assembly for vacuum heat insulation. Background technique [0002] Vacuum heat insulation tubes are commonly used for low-temperature cigarettes. In the existing technology, heat pipes and vacuum heat insulation tubes are generally separated. Since heat pipes are high-temperature parts, in order to keep the heat pipes and vacuum heat insulation tubes relatively fixed, other High temperature resistant, low thermal conductivity materials to fix, generally high temperature resistant plastics. [0003] Discrete heating tubes and vacuum insulation tubes have the following disadvantages: [0004] 1. The heating pipe is a high-temperature part, which needs other materials with high temperature resistance and low thermal conductivity to fix it. Generally, high temperature resistant plastics are used, and the price of these ma...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a heating element for a smoking appliance and vacuum heat insulation in view of the defects of the prior art that the above-mentioned heat is easy to dissipate and the heat insulation structure is complicated.

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