Heat Pipe Heating Device Steam Leakage Prevention
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Solution Overview
Problem
Existing heating devices with heat pipes are prone to short-circuits in the power-supply connection unit due to steam leakage from crimped portions, especially when the crimped portion is located near the power-supply connection unit.
Innovation Solution
The heating device incorporates heat pipes with crimped portions positioned on one end, while the power-supply connection unit is placed on the opposite end, and additional heat pipes are arranged parallel to the heat-generating element to manage thermal stress and vapor pressure, preventing steam leakage and potential short-circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the power-supply connection unit is disposed on one end side where the crimped portion of the heat pipe is located, then the device structure is simplified, but steam leakage from the crimped portion causes short-circuits in the power-supply connection unit
Solution Approach 1:
The power-supply connection unit is extracted from the vicinity of the crimped portion and disposed on the opposite end of the heat pipe, separating the electrical connection function from the thermal stress zone to prevent steam-induced short-circuits while maintaining structural simplicity
2Reliability
If additional heat pipes are arranged parallel to the heat-generating element, then thermal stress and vapor pressure are managed effectively, but the device complexity increases
Solution Approach 1:
The thermal management function is segmented by arranging multiple heat pipes in parallel, with each heat pipe independently managing thermal stress and vapor pressure, thereby enhancing reliability through distributed thermal control while maintaining a regular, manageable structure
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 effectively suppresses the occurrence of short-circuits in the power-supply connection unit by directing steam leakage away from the power-supply connection unit and uniformly managing temperature increases across the heating area, enhancing the reliability and safety of the heating device.
Implementation Method 1
a heat pipe that is disposed on a portion of the heating unit different from the contact portion
Implementation Method 2
a heating element is printed on a substrate that is formed of a plate-shaped heat pipe
Data Source
AI summary
A heating device includes a heating unit that heats a member to be heated, which is transported, as a result of a contact portion of the heating unit being in contact with the member to be heated, a heat pipe that contacts with a portion of the heating unit different from the contact portion in such a manner as to extend in a widthwise direction crossing a transport direction of the member to be heated and that includes a crimped portion formed at a first end of the heat pipe, and a power-supply connection unit that is disposed on a second end side of the heat pipe and that is connected to a wiring line through which power is supplied to the heating unit.