Conductive Plastic Arch Heating Element for T-Joint Pipe Fusion
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Solution Overview
Problem
Conventional methods for connecting plastic pipes, such as butt fusion and electro-fusion, are inefficient for creating T-shaped connections and often require heavy equipment, while existing techniques struggle with reliable fusion in branch configurations.
Innovation Solution
A method and structure using an arch-shaped heating element made of conductive plastic, with an electricity supply assembly and cover, that applies power alternately to ensure uniform heating and fusion of plastic pipes in a T-shaped configuration, addressing the inefficiencies of prior methods by ensuring consistent fusion quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electro-fusion socket method is used to connect plastic pipes, then pipes can be bonded together, but the equipment is heavy and structure is complex
Solution Approach 1:
The heating element is divided into multiple independent heating zones (first heating zone, second heating zone, third heating zone) that can be independently controlled. This segmentation allows targeted heating of specific pipe connection areas, reducing the need for heavy universal heating equipment while maintaining bonding reliability.
Solution Approach 2:
The patent replaces the mechanical heating system (external heating plates or sockets requiring mechanical pressure and complex thermal conduction) with an electromagnetic heating system (induction heating coils) that generates heat directly through electromagnetic induction. This substitution eliminates heavy mechanical pressing equipment and complex thermal management systems.
2Reliability
If conventional electro-fusion socket method is used to connect plastic pipes, then pipes can be bonded together, but the equipment is heavy to carry to working site
Solution Approach 1:
The patent replaces the mechanical heating system (external heating plates or sockets requiring mechanical pressure and complex thermal conduction) with an electromagnetic heating system (induction heating coils) that generates heat directly through electromagnetic induction. This substitution eliminates heavy mechanical pressing equipment and complex thermal management systems.
Solution Approach 2:
The heating element is divided into multiple independent heating zones (first heating zone, second heating zone, third heating zone) that can be independently controlled. This segmentation allows targeted heating of specific pipe connection areas, reducing the need for heavy universal heating equipment while maintaining bonding reliability.
3Manufacturing precision
If uniform heating is applied to the heating element, then fusion quality improves, but energy consumption increases
Solution Approach 1:
The patent implements dynamic control of heating zones, where the first, second, and third heating zones can be operated independently with different power levels. This allows the system to apply heat dynamically - using higher power in zones requiring more heating and lower or zero power in zones that don't need heating, thereby maintaining fusion quality while reducing overall energy consumption.
Solution Approach 2:
Different heating zones are configured with different heating characteristics to match the specific thermal requirements of different pipe connection areas. This local quality approach ensures that each zone provides the precise heating needed for its specific location, avoiding energy waste in areas that already have sufficient heat or don't require heating.
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 method achieves reliable and efficient T-shaped connections between plastic pipes, enhancing fusion quality and simplifying the connection process by uniformly heating the arch-shaped heating element, thus overcoming the limitations of existing techniques.
Implementation Method 1
an arch-shaped heating element made of conductive plastic material that generates heat using electricity applied thereto
Data Source
AI summary
Disclosed herein is a method and structure for connecting first (110) and second (120) plastic pipes to each other. The structure includes: an arch-shaped heating element (130) which is made of conductive plastic material and has an arch cross-sectional shape to cover the connection hole (111), with an opening (131) formed in a central portion of the arch-shaped heating element (130); an electricity supply assembly including a plurality of unit electricity supplies disposed around the opening (131) in different directions, each of the unit electricity supplies including a pair of electric connection terminals (140) disposed parallel to each other in the arch-shaped heating element (130) on opposite sides of the opening (131); and the second plastic pipe (120) provided on the end thereof with a cover (121) covering at least an outer surface of the arch-shaped heating element (130).