Heating Roller Terminal Heat Dissipation via Tubular Opening
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Solution Overview
Problem
Conventional drying devices for printers, which include heating rollers and drums, face challenges in efficiently dissipating heat from the heating sources, risking damage to the terminals of the heat sources due to the flow of heated air.
Innovation Solution
The heating roller unit incorporates a tubular member with an opening that allows heated air to escape, intersecting the axial direction, thereby preventing heat buildup and potential damage to the heat source terminals, and includes a fitting member with projections for secure alignment and positioning within the side plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating roller unit uses a conventional heating source configuration without a tubular member, then the structure is simpler, but the terminals of the heat source are damaged due to heat buildup from heated air flow
Solution Approach 1:
A tubular member is introduced as an intermediary component between the heating source and the external environment. This tubular member directs the flow of heated air away from the terminal, serving as a protective mediator that prevents direct exposure to harmful heat while maintaining the heating function.
Solution Approach 2:
The terminal is extracted from the direct path of heated air flow by positioning it within the tubular member structure. This separation removes the terminal from the harmful thermal environment while maintaining its electrical connection function.
2Reliability
If the heating roller unit incorporates a tubular member with opening for heat dissipation, then terminal protection is improved, but the device complexity increases
Solution Approach 1:
The tubular member serves multiple functions simultaneously: it acts as a structural support element, a heat dissipation channel, and a protective enclosure for the terminal. By combining these functions into a single component, the overall device complexity is minimized while achieving multiple protective and functional goals.
Solution Approach 2:
The tubular member merges the structural support function with the heat management function. Instead of having separate components for structural integrity and heat dissipation, these functions are combined into a single integrated tubular structure that performs both roles efficiently.
3Temperature
If heated air is allowed to flow freely around the heat source terminals, then heat dissipation is improved, but terminal damage occurs due to excessive heat exposure
Solution Approach 1:
The tubular member creates a localized heat management zone around the terminal. The opening in the tubular member is strategically positioned to allow heat dissipation in specific directions away from the terminal, while maintaining protection in other areas. This localized control of heat flow protects the terminal while maintaining effective heat dissipation.
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
This configuration enhances the workability and compactness of the heating roller unit by ensuring effective heat dissipation and preventing terminal damage, while maintaining the apparatus's structural integrity and efficiency.
Implementation Method 1
a heat source disposed inside the heating roller
Implementation Method 2
The tubular member has an opening. Via the opening, an inside of the tubular member communicates with an outside in a direction intersecting with an axial direction of the heating roller
Data Source
AI summary
A heating roller unit includes a heating roller, a heat source disposed inside the heating roller, and a tubular member at an end of the heating roller. Inside the tubular member, a terminal of the heat source is disposed. The tubular member has an opening via which inside of the tubular member communicates with an outside in a direction intersecting with an axial direction of the heating roller.