Wind Turbine Blade Heating Module With Integrated Conductive Wires
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Solution Overview
Problem
Existing electric heating modules for wind turbine blades require complex and labor-intensive connections, making installation and maintenance difficult due to the need for extensive wiring and space, which complicates ice removal and reduces power generation efficiency.
Innovation Solution
An electric heating module structure with integrally formed positive and negative conductive wires laid along the lengthwise direction of the blade, eliminating the need for external connections and reducing the number of wires, integrated with a carbon fiber and glass fiber cloth structure for enhanced strength and ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals led out from two sides of the electric heating module are connected by a cylindrical cable via plastic tubes and bus bars, then electrical connection is achieved, but the connection becomes complicated and requires large connection space
Solution Approach 1:
The patent merges the electric heating module with the conductive wires by integrally forming the wires with the module. This eliminates the need for separate connection components such as plastic tubes, bus bars, and cylindrical cables, thereby simplifying the connection structure while maintaining electrical connectivity.
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate connection components (plastic tubes, bus bars, cylindrical cables) from the system. By directly integrating the conductive wires with the heating module, it removes the complex multi-step connection process while preserving the essential electrical connection function.
2Reliability
If terminals led out from two sides of the electric heating module are connected by a cylindrical cable via plastic tubes and bus bars, then electrical connection is achieved, but it requires a larger space for refitting and has great processing depth
Solution Approach 1:
The patent combines the electric heating module and conductive wires into a single integrated structure. This merging eliminates the need for additional connection space, plastic tubes, and bus bars, thereby significantly reducing the volume required for installation and refitting operations.
3Reliability
If the electric heating module uses complex connection structures with plastic tubes and bus bars, then electrical connection is established, but it requires a large amount of work when recovering the blade surface
Solution Approach 1:
The patent merges the heating module and conductive wires into an integrated unit, which dramatically reduces the number of installation steps. This eliminates the need for separate operations of connecting plastic tubes, bus bars, and cables, thereby improving installation efficiency and reducing the workload for blade surface recovery.
4Reliability
If conductive wires are laid along the widthwise direction of the blade, then connection is achieved, but the number of positive and negative conductive wires increases
Solution Approach 1:
The patent changes the layout dimension of conductive wires from widthwise to lengthwise direction. By aligning the wires along the blade's length, it reduces the number of wires required while maintaining effective electrical connection, as the lengthwise arrangement allows for more efficient current distribution with fewer parallel pathways.
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
Simplifies the installation and maintenance process, improves electrical connection efficiency, reduces processing work, and enhances power generation by facilitating direct and efficient heating of the blade surface to melt ice without compromising the blade's structure.
Implementation Method 1
the electric heating module is woven by a carbon fiber material... the electric heating module can be powered on and heated to melt the ice on the blade
Implementation Method 2
the electric heating module can be powered on and heated to melt the ice on the blade
Data Source
Figure 1~2
Figure 3~4
AI summary
An electric heating module structure, an installation method, a forming method, and a wind turbine are provided. The electric heating module structure is configured for melting ice on a blade, and includes an electric heating module, a positive conductive wire and a negative conductive wire. The positive conductive wire and the negative conductive wire are integrally formed with the electric heating module, to supply power to the electric heating module. The integrally formed electric heating module, the positive conductive wire and the negative conductive wire are laid in an outer layer of the blade. The electric heating module structure according to embodiments of the present disclosure can reduce damages to the outer layer of the blade as much as possible while meeting a heating requirement, and is simple to operate. The electric heating module structure according to embodiments of the present disclosure can improve installation efficiency of the ice melting system, and has simple electrical connection. The electric heating module structure according to embodiments of the present disclosure simplifies fabricating process, simplifies refitting process on the blade, reduces an amount of processing work on the blade, reduces refitting difficulty, and reduces working time.