Tapered Sheet Heating Element for Baked Smoking Set
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Solution Overview
Problem
Existing baked smoking sets face issues with tobacco extrusion and residual smoke soot due to uniform heating element widths, and structural weakness leading to fracture during insertion and use.
Innovation Solution
A sheet-shaped heating element with a narrow first end and gradually widening width, featuring blade portions with chamfers for reduced tobacco extrusion and increased strength, and an insulating layer to prevent short circuits and oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the heating element has a uniform width, then the manufacturing is simple, but tobacco accumulates densely at sides causing residual smoke soot
Solution Approach 1:
The heating element transitions from a uniform width design to an asymmetric tapered design where the width gradually decreases from the mounting end to the front end. This asymmetric geometry prevents tobacco from accumulating densely at the sides, thereby reducing residual smoke soot while remaining manufacturable through standard forming processes.
Solution Approach 2:
Different sections of the heating element are given different widths to serve different functions: the wider mounting end provides structural support and ease of insertion, while the narrower front end reduces tobacco accumulation. This local variation in geometry optimizes both performance and manufacturing.
2Ease of operation
If the heating element root has a smaller width, then the insertion is easier, but the structural strength is low causing fracture during use
Solution Approach 1:
The heating element employs asymmetric width distribution along its length, with a wider root section that provides sufficient structural strength to prevent fracture during repeated insertion and use, while the narrower front section facilitates easy insertion into the cartridge.
Solution Approach 2:
The heating element can be viewed as segmented into different functional zones: a wider root portion for structural integrity and insertion, and a narrower working portion for heating. This segmentation allows optimization of each zone for its specific function.
3Strength
If the heating element width increases from front to mounting end, then the strength increases, but the tobacco extrusion at front end increases
Solution Approach 1:
The heating element uses asymmetric tapered geometry where the width gradually decreases from the mounting end toward the front end. This creates an optimal balance: the wider mounting end ensures structural strength, while the progressively narrower profile toward the front minimizes tobacco extrusion and accumulation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution facilitates easy insertion of the heating element, reduces tobacco accumulation and extrusion, enhances structural strength to prevent fracture, and ensures efficient heating and atomization of tobacco.
Implementation Method 1
a conductive path disposed on the insulating layer, and the conductive path generates heat after being powered
Data Source
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AI summary
The utility model relates to a baked smoking set and a heating element thereof. The heating element is in a sheet shape, and comprises a first end and a second end opposite to the first end; the first end is configured to be inserted into a sleeve of the baked smoking set, and a width from the first end to the second end becomes wider gradually. The heating element is in a sword shape, and the first end is narrow, so that a resistant force is relatively small when the heating element is inserted, to facilitate insertion, and accumulation of tobaccos on sides of the heating element also can be effectively reduced. A bottom of the heating element becomes wider to facilitate increasing strength of the heating element, and prevent fracture of the heating element due to inserting and pulling the cigarette several times.