Rear Slider Window Heater Grid With Wireless Power Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional slider window assemblies for vehicles, particularly rear slider windows, face challenges in efficiently defogging or defrosting the movable window panel across its entire range of motion without the need for a wired connection.
Innovation Solution
The implementation of electrically conductive traces or heater grids on the window panels, combined with wireless power transfer technology using transmitters and receivers, allows for the defogging or defrosting of the movable window panel regardless of its position between the closed and opened positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wired connection is used to power the heater grid on the movable window panel, then electrical power can be reliably transmitted, but the window panel's range of motion is constrained and the system complexity increases
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless electromagnetic power transmission system. The transmitter embedded in the frame generates electromagnetic fields that couple with receiver coils on the movable panel, eliminating physical cables and connectors that would constrain panel movement while maintaining reliable power delivery for the heater grid across the full range of motion.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium to transfer electrical power between the stationary frame and the movable panel. The transmitter converts electrical power to electromagnetic energy, which then couples through the air gap to the receiver coils on the panel, serving as a non-contact intermediary that enables power transmission without mechanical connection.
2Device complexity
If a wired connection is used to power the heater grid, then the system structure is simpler, but the movable panel cannot move freely across its entire range of motion
Solution Approach 1:
The patent substitutes the mechanical cable and connector system with an electromagnetic wireless power transmission system. This replacement eliminates the physical constraints that would limit panel movement, allowing the panel to slide freely across its entire range of motion while maintaining power supply to the heater grid at any position.
Solution Approach 2:
The patent creates a dynamic power transmission system where the electromagnetic coupling between transmitter and receiver automatically maintains power delivery as the panel moves. The system adapts to changing positions and orientations of the panel, maintaining effective power transmission throughout the full range of motion without requiring mechanical adjustment or reconnection.
3Ease of operation
If wireless power transfer is implemented, then the movable panel can move freely without wired constraints, but the device complexity increases
Solution Approach 1:
The patent divides the wireless power transmission system into separate functional segments: a transmitter unit embedded in the stationary frame and receiver coils integrated into the movable panel. This segmentation allows each component to be optimized independently and simplifies the overall system architecture, reducing complexity while enabling free panel movement.
Solution Approach 2:
The patent merges the wireless power transmission functionality with existing structural components of the window assembly. The transmitter is integrated into the frame structure, and receiver coils are incorporated into the panel assembly, combining multiple functions (structural support, power reception, and heater power supply) into unified components rather than adding separate independent systems.
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 solution ensures consistent and efficient heating or defrosting of the movable window panel without the constraints of a wired connection, maintaining functionality across the full range of motion.
Implementation Method 1
The transmitter, when operated, generates a magnetic field at or near the receiver, and the receiver, responsive to the magnetic field, generates electrical voltage for powering the electrically conductive traces of the movable window panel
Implementation Method 2
The heater grids are disposed at a surface of the fixed and movable window panels and comprise electrically conductive traces or busbars at which electrical connectors are disposed for electrically connecting the busbars and heater grids to a wire harness of the vehicle
Data Source
AI summary
A vehicular rear slider window assembly includes a fixed window panel, a movable window panel, and a frame portion fixed relative to the fixed window panel. The fixed window panel has an opening, and the movable window panel is movable along upper and lower rails of the frame portion between a closed position and an opened position. Electrically conductive traces are established at a surface of the fixed window panel, and electrically conductive traces are established at a surface of the movable window panel. Electrical power to the electrically conductive traces of the movable window panel is provided wirelessly throughout all positions of the movable window panel between and including the opened position and the closed position.