Wiper Connecting Unit Fluid Retention and Spoiler Sealing
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Solution Overview
Problem
Existing windshield wiper connection units fail to effectively prevent water spraying over during operation, as they do not adequately manage fluid flow around the wiper blade and arm components.
Innovation Solution
The design incorporates arcuate fluid retention elements on the base body of the windshield wiper connection unit, which are integrated with the spoiler receiving area and extend transversely to the longitudinal direction, forming a sealing interface with the spoiler unit to prevent fluid escape and ingress, thereby enhancing water management and reducing spray-over.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional connection units are used, then the structure is simple, but water spraying over cannot be prevented
Solution Approach 1:
The base body is segmented into functional zones including a spoiler receiving area and fluid retention elements. The fluid retention element is further divided into a first portion and a second portion that extend in different directions, creating multiple sealing interfaces with the spoiler unit to prevent water spray from different angles.
Solution Approach 2:
The fluid retention element acts as an intermediary component between the base body and the spoiler unit. It creates a sealing interface that prevents water from passing through the connection unit, while maintaining the structural integrity and allowing relative movement between the base body and spoiler unit.
2Object-affected harmful factors
If the spoiler receiving area has a curved edge, then fluid flow is improved, but manufacturing precision requirements increase
Solution Approach 1:
The edge of the spoiler receiving area is designed with a curved contour instead of sharp angles. This curvature allows water and air to flow smoothly around the spoiler unit, preventing turbulence and spray generation. The curved geometry is integrated into the base body molding process, making it a inherent feature rather than a post-processing element.
3Reliability
If fluid retention elements are added, then water leakage is prevented, but device complexity increases
Solution Approach 1:
The fluid retention element is merged with the base body as an integrated structure rather than a separate component. The first portion and second portion of the fluid retention element are formed as continuous extensions of the base body, eliminating the need for additional fasteners or assembly steps while maintaining the sealing function.
Solution Approach 2:
The base body is designed to perform multiple functions: it provides structural support for the spoiler unit, creates sealing interfaces through its curved edges and fluid retention elements, and allows for relative movement between components. This multi-functionality reduces the need for separate dedicated components for each function.
Data Source
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AI summary
The invention is based on a wiper connecting unit with a basic body (12) for connecting a wiper blade adapter (14) to a wiper arm (16) of a wiper. It is proposed that the basic body (12) has a spoiler receiving region (20) arranged on one side (18) of the wiper arm.