Heated Wiper Blade Insulation Structure for Lower Energy Use
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Solution Overview
Problem
Existing wiper blades for motor vehicles require a significant amount of energy for heating, which is ecologically and economically inefficient.
Innovation Solution
The wiper blade incorporates an insulating element with an air chamber on its top surface, reducing heat loss and energy consumption by insulating the mounting area and wiper lip, while utilizing a heating device to heat the spring rail effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating element is arranged in an outer cavity of the wiper blade rubber, then the wiper blade can be heated, but a relatively large amount of energy is required for heating
Solution Approach 1:
The patent introduces an insulating element as an intermediary component between the heating element and the surrounding environment. This insulating element prevents heat loss to the environment, allowing the heating element to heat the wiper blade more efficiently with reduced energy consumption. The insulating element acts as a mediator that directs and retains thermal energy within the wiper blade structure.
Solution Approach 2:
The heating element is positioned specifically in the mounting area of the wiper strip, which is the region requiring heat input for optimal wiping performance. The insulating element is strategically placed to retain heat locally in this critical area, ensuring that thermal energy is concentrated where it is most needed rather than being distributed throughout the entire wiper blade structure.
2Reliability
If the wiper strip is connected to the spring rail via a tilting bridge, then good cleaning performance is achieved, but the structure becomes more complex
Solution Approach 1:
The wiper strip is divided into distinct functional segments: the mounting area for attachment to the spring rail, the tilting bridge as a separate articulation component, and the wiping lip for actual cleaning. This segmentation allows each component to perform its specific function optimally while maintaining overall structural efficiency. The tilting bridge acts as an independent articulation point that enables the wiping lip to adapt to the windshield surface.
Solution Approach 2:
The tilting bridge provides dynamic articulation between the mounting area and the wiping lip, allowing the wiper strip to adjust its angle and conform to the curvature of the windshield. This dynamic capability enables the wiping lip to maintain optimal contact with the glass surface throughout the wiping arc, significantly improving cleaning performance compared to a rigid connection.
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 design achieves energy savings and improved cleaning performance by minimizing heat loss and optimizing heating efficiency.
Implementation Method 1
an insulating element is provided for thermal insulation. In this way, the energy required for heating is reduced
Implementation Method 2
the spring rail has a heating element, which is arranged on the upper side
Data Source
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AI summary
The invention relates to a wiper blade (10), in particular for a motor vehicle. Said wiper blade comprises a wiper strip (14) with a longitudinal extension (L) and a heating device (30). According to the invention, an insulating element (34) for thermal insulation is provided.