Retractable Heating Rod for Compact Tobacco Roaster
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Solution Overview
Problem
Conventional tobacco roasters with fixed heating rods are inconvenient for carrying and lack compactness, as they do not allow for adjustable heating rod lengths or efficient smoke temperature management.
Innovation Solution
A retractable heating rod with a slidable cover, a smoke tube, and a thermal insulation connecting sleeve, where the heating rod is heated by an alternating magnetic field induced by a coil, allowing for adjustable exposure and a reduced smoke temperature through an extended smoke passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed heating rod is used in a conventional tobacco roaster, then the structure is simple, but the device lacks compactness and is inconvenient for carrying
Solution Approach 1:
The heating rod is designed to be retractable rather than fixed, allowing it to extend when needed for heating and retract when not in use. This dynamic configuration enables the device to transition between operational and compact states, significantly improving portability while maintaining heating functionality.
Solution Approach 2:
The heating rod can be fully retracted into the main body of the tobacco roaster, with the rod nested within the housing structure. This nesting arrangement allows the extended heating rod to be stored compactly within the device body, reducing the overall footprint and enhancing convenience for carrying.
2Adaptability or versatility
If a fixed heating rod with non-adjustable length is used, then the manufacturing is simple, but the device lacks adaptability for different usage scenarios
Solution Approach 1:
The heating rod incorporates a sliding mechanism that allows its length to be dynamically adjusted. The rod can slide in and out of the main body along a guide tube, enabling users to extend or retract the heating portion according to different heating needs and usage scenarios, thereby enhancing versatility.
Solution Approach 2:
The heating rod structure is segmented into a fixed portion within the main body and a movable extension portion. This segmentation allows the heating rod to be divided into functional zones, with the extendable portion providing adjustable length while the fixed portion maintains structural stability, achieving adaptability without excessive complexity.
3Temperature
If the smoke passage is short, then the device structure is compact, but the smoke temperature remains high which reduces user comfort
Solution Approach 1:
The guide tube extends the smoke passage in a linear direction along the axis of the heating rod. By elongating the smoke path in this dimension, the smoke has a longer distance to travel and cool down before reaching the user, effectively reducing smoke temperature without significantly increasing the overall device volume through multi-dimensional expansion.
Solution Approach 2:
The guide tube acts as an intermediary structure between the heating rod and the user's mouth. It provides an extended pathway that allows smoke to cool as it travels through the tube, mediating the temperature reduction function while maintaining a compact overall device structure through efficient spatial arrangement.
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 provides a compact, convenient, and efficient tobacco roaster with a retractable heating rod that effectively heats tobacco materials while maintaining a lower smoke temperature, enhancing user experience and portability.
Implementation Method 1
the tobacco roaster further comprises a magnetic induction coil; when an alternating current flows through the magnetic induction coil, an alternating magnetic field is produced; an eddy current is formed in the heating rod placed in the alternating magnetic field to heat up an upper end of the heating rod
Implementation Method 2
an eddy current is formed in the heating rod placed in the alternating magnetic field to heat up an upper end of the heating rod
Implementation Method 3
the connecting sleeve comprises a thermal insulation material and is fixedly disposed between the heating rod and the guide tube
Data Source
Figure 1
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AI summary
A tobacco roaster includes a heating rod which is retractable. The heating rod includes a through hole and an air passage communicating with the through hole. The heating rod is configured to heat a tobacco material to produce smoke, and the smoke enters the air passage via the through hole.