Wiper Blade Fluid Channel Wind Deflector Design
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Solution Overview
Problem
Conventional wiper blade devices face challenges in efficiently dispensing wiper fluid over a significant portion of the wiper fluid output channel, especially when exposed to external air flows, such as during vehicle movement, leading to suboptimal cleaning efficiency and fluid usage.
Innovation Solution
The wiper blade device incorporates a wiper strip unit with a wiper fluid supply channel that extends over a substantial section of the wiper fluid output channel, featuring a wind deflector unit and directional control valve to ensure consistent and independent fluid dispensing, regardless of external air influences, and includes heating wires for improved wiper lip flexibility at low temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wiper fluid dispensing channel is exposed to external air flows during vehicle movement, then the vehicle can move freely, but the wiper fluid dispensing becomes suboptimal and cleaning efficiency decreases
Solution Approach 1:
The wind deflector unit is designed to redirect external air flows that would otherwise disrupt wiper fluid dispensing. By strategically positioning the deflector, the patent converts the harmful air flow into a beneficial pattern that directs air along the deflector surface, preventing direct interference with the fluid dispensing channel while maintaining vehicle movement freedom
2Reliability
If the wiper fluid supply channel extends over a substantial section adjacent to the dispensing channel, then fluid dispensing consistency is improved, but the device complexity increases
Solution Approach 1:
The supply channel and dispensing channel are merged into a single integrated wiper strip unit structure. The supply channel extends alongside the dispensing channel within the same structural component, allowing fluid to flow from the supply channel into the dispensing channel at multiple points. This merging approach ensures consistent fluid availability without requiring separate, complex external piping systems
3Loss of substance
If conventional wiper blade devices are used without extended supply channels, then the device complexity is lower, but the fluid usage efficiency is suboptimal
Solution Approach 1:
The extended supply channel provides continuous fluid availability along the entire length of the dispensing channel, ensuring that wiper fluid is consistently supplied to all dispensing points throughout the wiping cycle. This continuous supply mechanism prevents fluid depletion at any section, optimizing fluid usage efficiency while the integrated design keeps structural complexity manageable
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 configuration enables efficient, fluid-saving, and effective cleaning of vehicle windows by maintaining consistent wiper fluid dispensing and improving cleaning performance, especially in windy conditions and low temperatures, while optimizing fluid usage and enhancing user convenience through tool-free assembly.
Implementation Method 1
heating wires for improved wiper lip flexibility at low temperatures
Data Source
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AI summary
The invention relates to a wiper blade device (10) with at least one wiper blade adapter (14) connecting to at least one wiper arm (20), at least one spring rail (12), and at least one wiper strip unit (16), which has at least one wiper lip (18) and at least one wiper fluid dispensing channel (28), which includes at least one dispensing element (24) for dispensing wiper fluid (26). It is proposed that the at least one wiper strip unit (16) includes at least one wiper fluid supply channel (22) for supplying wiper fluid (26) to the wiper fluid dispensing channel (28), wherein the wiper fluid supply channel (22) extends over at least a substantial section of the wiper fluid dispensing channel (28) adjacent to the wiper fluid dispensing channel (28).