Loop-Heated Wiper Blade for Low-Temperature Wiping
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Solution Overview
Problem
Existing wiper blades with heating devices are complex and costly to manufacture due to their design, which affects their performance and efficiency.
Innovation Solution
A wiper blade with a heating element configured as a loop, simplifying manufacturing and improving heating performance by being integrated into the wiper blade structure, including an end cap, fastening means, and liquid guide, allowing for better contact and heating distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating device with an elongate heating element is arranged in an outer cavity of the window wiper rubber, then heating performance is improved, but manufacturing complexity increases and production cost rises
Solution Approach 1:
The heating element is configured in a loop shape instead of a straight elongate form. This loop configuration allows the heating element to be easily integrated into the wiper blade structure during manufacturing, simplifying the production process while maintaining effective heating coverage in critical areas such as the end cap and outlet opening regions
2Temperature
If a heating device with an elongate heating element is arranged in an outer cavity of the window wiper rubber, then heating performance is improved, but production cost increases
Solution Approach 1:
The loop-shaped heating element simplifies the manufacturing process by eliminating the need for complex assembly operations required for elongate heating elements. The loop configuration can be directly integrated into the extruded wiper strip, reducing labor costs and production time while maintaining effective heating performance
Solution Approach 2:
The heating element is materially bonded within the wiper strip structure, merging the heating function with the structural component. This integration eliminates separate assembly steps and reduces overall production complexity, leading to cost-effective manufacturing while ensuring good thermal contact for effective heating
3Temperature
If the loop is arranged in the region of the outlet opening, then heating of the outlet opening is improved, but manufacturing precision requirements increase
Solution Approach 1:
The loop-shaped heating element concentrates heating capacity in specific critical regions such as the outlet opening and end cap areas. The loop configuration naturally positions heating zones where they are most needed, providing localized thermal enhancement without requiring high-precision positioning during manufacturing
Solution Approach 2:
The heating element is embedded within the wiper strip structure through material bonding, combining the heating function with the structural component. This integration ensures proper positioning of the loop relative to the outlet opening during the extrusion process, eliminating the need for separate positioning operations and reducing manufacturing precision requirements
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 loop configuration simplifies production, enhances heating performance, and maintains wiping efficiency even at low temperatures, resulting in a cost-effective and effective wiper blade.
Implementation Method 1
a heating element (28) which is configured as a loop (34)
Data Source
AI summary
The invention relates to a wiper blade (10), in particular for a motor vehicle. Said wiper blade comprises a heating device with an elongated heating element (28). According to the invention, the heating element (28) comprises at least one loop (34).