Wiper Blade Heating Foil Sealed Connector
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wiper devices for vehicle windows face challenges in maintaining a secure and reliable electrical connection for heating elements, particularly due to moisture penetration issues, requiring additional sealing measures to ensure functioning over the device's operating time.
Innovation Solution
A wiper blade design featuring a sealed plug connector body with an integrated adapter element, a flexible heating foil connected to the carrier rail via an adhesive layer, and a protected mounting within the wiper rubber, along with a flexible connection to the plug connector body, effectively prevents moisture entry and ensures reliable electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pin contacts or resilient contacts are used for electrical connection of heating elements, then electrical contact is achieved, but moisture penetration occurs requiring additional sealing measures
Solution Approach 1:
The patent implements a nested sealing structure where a first seal element is arranged between the pin contact and the heating foil, and a second seal element is arranged between the pin contact and the adapter element. This nested arrangement of multiple sealing components ensures that moisture is blocked at multiple levels, preventing penetration to the electrical contact while maintaining reliable electrical connection.
Solution Approach 2:
The patent introduces seal elements as intermediary components between the electrical contact components and the external environment. These seal elements act as mediators that prevent direct contact between moisture and the electrical contacts, thereby eliminating the harmful effect of moisture penetration while preserving the electrical connection function.
2Temperature
If heating foil is connected to carrier rail, then heat transfer is improved, but moisture entry risk increases
Solution Approach 1:
The patent uses a nested sealing approach where seal elements are positioned between the heating foil and the adapter element, creating multiple barriers against moisture. This allows the heating foil to be in direct thermal contact with the carrier rail for efficient heat transfer, while the nested seals prevent moisture from reaching the connection interface.
Solution Approach 2:
The patent applies local sealing measures at critical interfaces where moisture penetration is most likely to occur. The seal elements are specifically positioned at the interface between the heating foil and the adapter element, providing localized protection without interfering with the overall heat transfer function of the heating system.
3Object-affected harmful factors
If additional sealing measures are implemented, then moisture protection is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sealing functions into an integrated adapter element structure. The adapter element is designed to house both the electrical connection interface and the sealing components in a unified structure, reducing the number of separate parts and simplifying assembly while maintaining effective moisture protection.
Solution Approach 2:
The adapter element serves multiple functions: it provides the electrical connection interface, houses the sealing elements, and protects the heating foil connection. This multi-functional design reduces overall device complexity by consolidating multiple components into a single universal element that performs several protective and connective functions.
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 solution provides a secure, reliable, and cost-effective heating arrangement for wiper blades that maintains functionality over the device's lifespan by preventing moisture ingress and ensuring efficient heat transfer, while allowing for a flat and wide heating coverage.
Implementation Method 1
the heating foil is connected on the surface, in particular on the entire surface, with the at least one carrier rail, in particular by an adhesive layer on the heating foil. By a connection over the entire surface between the heating foil and the carrier rail, a particularly good heat transfer is achieved
Implementation Method 2
a heating arrangement (28) in the form of a flexible heating foil (30) which is arranged in abutting contact with the at least one carrier rail (26, 27)
Data Source
Figure 1
Figure 2~4
Figure 5
AI summary
The invention relates to a wiper device (10) for vehicle windows, in particular for vehicle windscreens, with a wiper arm (11) which carries an adapter (16) on the wiper arm side, which is able to be connected with a wiper blade (20; 20a; 20b; 70) by means of an adapter element (18; 18a) on the wiper blade side, wherein the wiper blade (20; 20a; 20b; 70) has a wiper rubber (21) and at least one carrier rail (26, 27; 71) arranged in the longitudinal direction of the wiper blade (20; 20a; 20b; 70), which is arranged in operative connection with a heating arrangement (28; 28a; 72) having an electrical connection (46; 56, 57; 76). According to the invention, provision is made that the electrical connection (46; 56; 57; 76) of the heating arrangement (28; 28a; 72) is held in a sealing manner in a first plug connector body (48; 54, 55; 77).