Customized Automotive Wireless Charging Module for In-Car Applications

Customized 20W/22W Automotive Wireless Charging Module for 12V/24V Vehicle Systems

Project Overview

For automotive electronics manufacturers and vehicle accessory developers, wireless charging modules need to meet more than just charging requirements. They must also fit limited installation spaces, work reliably with the vehicle's power system, and integrate smoothly into the existing interior design.

For this project, our customer was looking for a customized automotive wireless charging solution for in-car wireless charging applications.

Based on the customer's installation requirements, we developed a compact automotive wireless charging module integrating wireless charging coils and a PCBA circuit board, designed for 12V/24V vehicle power systems and supporting charging power up to 20W/22W.

The coil structure was customized according to the customer's installation space and charging area requirements.

Customer Requirements

The customer needed a wireless charging solution suitable for automotive applications with the following requirements:

• Support 12V and 24V automotive power systems
• Wireless charging power up to 20W/22W
• Multi-coil design for a wider charging area
• Customized coil arrangement according to installation space
• Integrated PCBA circuit board
• Compact structure for in-car installation
• Stable operation in automotive environments
• Customized mounting and connection options
• Suitable for OEM/ODM automotive electronic projects

The key challenge was to achieve a balance between charging performance, coil positioning, installation space and system integration.

Our Customized Solution

1. Multi-Coil Wireless Charging Design

To provide a more flexible charging area inside the vehicle, we designed a multi-coil wireless charging structure.

The coils are precisely arranged on the module to improve magnetic coupling with compatible wireless charging devices.

This design is particularly suitable for automotive applications where the position of the smartphone may vary during driving.

Key benefits:

• Expanded effective charging area
• Improved coil-to-device coupling
• Flexible installation design
• Suitable for different automotive interior structures

2. Integrated PCBA Circuit Board

The wireless charging coils are combined with a customized PCBA circuit board to create a more complete wireless charging module.

The PCBA handles the required charging control and electrical functions, reducing the customer's need to separately source and integrate different components.

This helps simplify the customer's product development and assembly process.

Module concept:

Wireless Charging Coil → PCBA Control → Automotive Power Input → Wireless Charging Output

3. Designed for 12V/24V Automotive Systems

The module is designed for applications using common 12V/24V automotive electrical systems.

This makes the solution suitable for different vehicle-related applications and automotive electronic products.

The power system can be customized according to the customer's project requirements.

4. Customized Mounting Structure

Automotive interior spaces are often highly customized, so a standard wireless charging module may not always fit directly into the customer's product.

For this project, we provided a customized mounting and coil arrangement solution based on the customer's installation requirements.

The coil size, arrangement, connection method and overall structure can be adjusted for different applications.

Application Scenarios

This customized automotive wireless charging module can be used in various vehicle-related applications, including:

• Automotive wireless charging pads
• Car center console charging systems
• In-car smartphone charging modules
• Automotive aftermarket accessories
• Vehicle infotainment systems
• Smart cockpit applications
• Commercial vehicle charging systems
• Customized automotive electronic devices
• OEM/ODM wireless charging products

Why Choose a Customized Solution?

Every vehicle interior has different requirements for space, coil positioning, power input, mounting structure and connection method.

A customized wireless charging module can be developed according to the customer's actual product structure rather than forcing a standard module into an unsuitable installation space.

Our engineering team can work with customers on:

Coil Design → Coil Arrangement → PCBA Integration → Mechanical Structure → Connection → Sample → Mass Production

This provides a complete OEM/ODM development path for automotive wireless charging projects.