Pivoting Wiper Adapter Connection for Stable Electrical Contact
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Solution Overview
Problem
Existing windscreen wiper devices face challenges in securely and efficiently connecting the wiper blade adapter to the wiper arm adapter, particularly during movements, which can lead to inadvertent detachment and complex assembly processes.
Innovation Solution
The design incorporates a movable electrical connection element mounted on the wiper arm adapter via a bearing element, allowing for a rotatable or pivotable connection with a coupling element and stop element to secure the connection, reducing degrees of freedom and ensuring a positive fit, while also including a sealing element for protection against liquids and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wiper blade adapter is movably mounted on the wiper arm adapter via a bearing element, then the wiper blade adapter can pivot during operation, but the electrical connection may become detached during movement
Solution Approach 1:
The electrical connection unit is integrated into the bearing element structure, combining the mechanical pivot function with the electrical connection function in a single integrated component. This merging ensures that the electrical connection moves together with the mechanical joint, preventing detachment during wiper operation.
Solution Approach 2:
The electrical connection element is designed to be movable relative to the wiper arm adapter through the bearing element, allowing it to dynamically follow the pivot movements of the wiper blade adapter while maintaining continuous electrical contact. This dynamic design accommodates the range of motion without compromising connection stability.
2Ease of manufacture
If the electrical connection element is fixed on the wiper arm adapter, then the assembly is simple, but the connection cannot accommodate movement and may detach
Solution Approach 1:
The electrical connection element is designed to be movable relative to the wiper arm adapter through the bearing element, allowing it to dynamically follow the pivot movements of the wiper blade adapter while maintaining continuous electrical contact. This dynamic design accommodates the range of motion without compromising connection stability.
Solution Approach 2:
The bearing element acts as an intermediary mechanism between the fixed wiper arm adapter and the movable wiper blade adapter, enabling the electrical connection element to move smoothly while maintaining reliable electrical contact throughout the pivot range.
3Reliability
If multiple electrical connection elements are used, then comprehensive electrical connection is achieved, but the device complexity increases
Solution Approach 1:
Multiple electrical connection elements are integrated into a single electrical connection unit that is incorporated into the bearing element structure. This merging approach provides comprehensive electrical connectivity while maintaining a compact and simple overall design, avoiding the complexity of separate connection mechanisms.
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 provides a secure, easy-to-assemble, and reliable electrical connection that prevents unintended detachment and ensures airtight and watertight protection, enhancing operational comfort and durability.
Implementation Method 1
The electrical connection element is mounted via the bearing element so as to be movable, in particular rotatable or pivotable, at least relative to the wiper arm adapter
Implementation Method 2
In particular, in one embodiment of the electrical connection element and the electrical connection element as coils, it is conceivable for an electrical connection to be made inductively via the electrical connection unit
Implementation Method 3
the electrical connection element and the electrical connection element are at least, in particular at least largely, fastened to one another via a frictional connection
Data Source
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AI summary
The invention relates to a windscreen wiper device having: at least one wiper blade adapter (32a; 32b); at least one wiper arm adapter (30a; 30b); and at least one electric connection unit (38a; 38b) for electrically connecting at least one line element (34a; 34b) of the wiper arm adapter (30a; 30b) to at least one electric attachment element (40a; 40b) of the wiper blade adapter (32a; 32b), wherein the wiper blade adapter (32a; 32b) is mounted on the wiper arm adapter (30a; 30b) via at least one bearing element (36a; 36b), in particular a bearing pin, of the wiper arm adapter (30a; 30b) so as to be movable, in particular pivotable. According to the invention, the electric connection unit (38a; 38b) comprises at least one electric connection element (42a; 42b), which is arranged on the wiper arm adapter (30a; 30b) and is mounted via the bearing element (36a; 36b) so as to be moveable, in particular rotatable or pivotable, at least relative to the wiper arm adapter (30a; 30b).