Heating Coil Insulation Bridges for OLED Evaporator Stability
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Solution Overview
Problem
The expanding and contracting of heating coils in OLED evaporators lead to deformation and potential short circuits due to external forces, affecting the stability of the evaporator.
Innovation Solution
A heating source with a protective component made of insulation material, such as C/Csi composite, is used to restrict the deformation range of the heating coil, preventing contact between adjacent heater strips and reducing the likelihood of short circuits. This includes insulation bridges between heater strips and insulation linings between the heating coil and container to disperse deforming forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the heating coil is made larger and more integrated to accommodate larger crucibles, then the heating capacity and crucible size are improved, but the heating coil becomes more susceptible to deformation and short circuit due to thermal expansion and external forces
Solution Approach 1:
The patent introduces an insulation bridge as an intermediary component between adjacent heater strips. This insulation bridge acts as a mediator that prevents direct contact between heater strips while allowing thermal energy to pass through, thereby preventing short circuits caused by coil deformation during thermal expansion and contraction cycles
Solution Approach 2:
The heating coil is segmented into multiple independent heater strips with insulation bridges between them. This segmentation allows each heater strip to expand and contract independently without causing the entire coil to deform, reducing the risk of mutual contact and short circuits while maintaining heating effectiveness
2Temperature
If the heating coil undergoes thermal expansion and contraction during operation, then the heating function is maintained, but the coil and crucible deform due to external forces causing adjacent heater strips to contact and cement
Solution Approach 1:
The patent changes the physical parameters of the heating coil system by introducing insulation bridges with specific mechanical and thermal properties. These bridges allow the coil to undergo thermal expansion and contraction while maintaining structural integrity and preventing deformation that would lead to heater strip contact
Solution Approach 2:
The insulation bridges are installed beforehand between adjacent heater strips to provide cushioning and spacing. This pre-positioned cushioning prevents the heater strips from coming into contact during thermal expansion and contraction, eliminating the risk of cementation and short circuits before they can occur
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 effectively reduces the possibility of heating coil short circuits and enhances the stability of the heating coil and the overall evaporator, ensuring consistent operation.
Implementation Method 1
two ends of the heating coil are connected to a power source to receive voltages to generate heat
Implementation Method 2
the protective component is insulation material, and two ends of the heating coil are connected to a power source to receive voltages to generate heat, and the protective component is located on the heating coil to restrict a deformation range of the heating coil
Data Source
AI summary
The present invention discloses a heating source, applied in an evaporator of organic light emitting diode to heat a heating container in the evaporator, wherein the heating source comprises a heating coil and a protective component, and the protective component is insulation material, and two ends of the heating coil are connected to a power source to receive voltages to generate heat, and the protective component is located on the heating coil to restrict a deformation range of the heating coil for restricting contact of two adjacent heater strips in the heating coil and preventing the short circuit the two adjacent heater strips. Therefore, the present invention reduces the possibility of the heating coil short circuit and raises the stability of the heating coil, and thus, the stability of the evaporator applied with the heating coil can be provided.