Induction Heating for Vehicle Window Hardware Soldering
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Solution Overview
Problem
Existing methods for soldering hardware to vehicle windows, such as resistance soldering, are inefficient and do not consistently achieve strong bonds, particularly when dealing with dielectric substrates like glass.
Innovation Solution
An apparatus incorporating induction heating devices, integrated into a vehicle window assembly fixture, allows for precise heating of hardware items adhered with solder on a glass substrate, using adjustable positioning mechanisms and controllers to optimize heat application on both substrate and hardware surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If resistance soldering is used to bond hardware to glass substrates, then the process is relatively simple to implement, but the soldering time is excessive and bond strength is insufficient
Solution Approach 1:
The patent replaces resistance soldering (electrical/thermal system) with induction heating (electromagnetic system). The induction heating device generates a magnetic field that induces eddy currents in the hardware, heating it rapidly through electromagnetic induction rather than resistive heating, thereby reducing soldering time while maintaining ease of operation
Solution Approach 2:
The patent changes the heating mechanism from resistive to inductive, fundamentally altering the thermal processing parameters. Induction heating provides more rapid and controlled heating with higher power density, enabling faster soldering cycles and improved bond strength without complicating the manufacturing process
2Ease of manufacture
If resistance soldering is used to bond hardware to glass substrates, then the process is relatively simple to implement, but the bond strength achieved is insufficient
Solution Approach 1:
The patent replaces resistance soldering with induction heating, which delivers more concentrated and controllable thermal energy to the solder joint. The electromagnetic induction process heats the hardware and solder more efficiently, achieving higher temperatures faster and maintaining them more precisely, thereby creating stronger bonds while keeping the process straightforward
Solution Approach 2:
The induction heating device operates with periodic alternating magnetic fields that induce corresponding periodic eddy currents in the hardware. This periodic heating action allows for precise temperature control and rapid thermal cycles, enabling optimal soldering conditions that produce superior bond strength
3Productivity
If induction heating is used to solder hardware to vehicle windows, then soldering time is reduced and bond strength is improved, but the device complexity increases
Solution Approach 1:
The induction heating device is designed with a universal fixture that can accommodate different hardware configurations and window sizes. The system integrates multiple functions (heating, positioning, and support) into a single apparatus, reducing overall system complexity while maintaining improved soldering performance
Solution Approach 2:
The patent combines the induction heating coil, positioning mechanisms, and support fixture into an integrated assembly. By merging these components into a unified device rather than separate systems, the patent reduces operational complexity while achieving rapid soldering and strong bonds
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 approach significantly reduces soldering times and achieves bond strengths comparable to or exceeding those of resistance soldering methods, with flexible operation of induction heating devices and precise control over the heating process.
Implementation Method 1
use induction heating to solder an item of hardware to a dielectric substrate, preferably a glass substrate
Implementation Method 2
An induction heating device emits a magnetic field towards the solder spots to heat these by induction
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
An apparatus and a method of using induction heating to solder an item of hardware to a glass substrate (18), wherein the glass substrate, is a vehicle window, the substrate and bonded item(s) of hardware forming a vehicle window assembly.