With the integrated development of smart devices and power systems, single-function power interfaces can no longer meet the diverse power supply and data/auxiliary charging needs of multiple devices. The **AC three-prong integrated USB composite socket** has become an ideal connection solution for electric mobility, lithium battery packs, industrial power supplies, and smart device terminals, thanks to its advantages of "high integration, space saving, and robust durability."
I. Core Product Features
1. High Integration, Significantly Saving Panel Space
This socket integrates a standard **AC three-prong socket (IEC 60320 standard interface)** and a **USB output interface** into a unified housing. There is no need to drill multiple mounting holes on the device enclosure, greatly simplifying device panel design and production assembly processes.
2. Dual Power Supply Support, Balancing High-Power and Portable Charging
Main interface (three-prong port): ** Supports high-voltage AC/DC main power input (e.g., 220V AC input or battery main circuit), with strong load capacity, meeting the main power supply and charging needs of the device.
USB interface: ** Additionally integrates a 5V/quick-charge USB output interface, which can directly provide auxiliary power to mobile phones, GPS navigation devices, smart vehicle equipment, or BMS diagnostic modules, without the need for an external adapter.
3. Secure and Anti-Disconnection, Supporting Screw-Mount Installation
The housing features **dual-ear screw mounting holes (Flange Mount)** on both sides, allowing it to be securely fastened to the chassis or device panel with screws. Compared with ordinary embedded sockets, its pull-out resistance and vibration resistance are significantly improved, ensuring it will not loosen or detach even under bumpy conditions or frequent plugging and unplugging.
4. High-Quality Flame-Retardant Materials and High-Conductivity Copper Contacts
Shell: Made of high-strength engineering plastic (such as PA66/PBT), featuring excellent **UL94 V-0 flame retardant** performance, resistant to high temperatures and breakage.
Pins/Contacts: Internal connectors use high-purity brass with nickel or tin plating, offering low contact resistance and minimal temperature rise, ensuring electrical safety under prolonged high-load operation.
II. Typical Application Areas
Leveraging the dual advantages of "main power + auxiliary interface," this composite socket is widely used in the following scenarios:
Light Electric Vehicles and Lithium Battery Packs: Charging ports for battery packs in e-bikes, e-motorcycles, floor scrubbers, and golf carts; the USB interface can power onboard accessories or support BMS system regulation.
Outdoor Energy Storage and Portable Power Stations: Serves as a standard input/output interface on portable power station panels.
Industrial Automation and Cabinet Power: Power supply for industrial equipment control boxes, server cabinets, and communication base station panels, accommodating both main power and USB power for on-site maintenance devices.
Smart Home and Commercial Terminals: Integrated power interfaces for smart charging stations, vending machines, digital signage, and similar devices.
III. Summary
The integrated power socket with USB not only delivers the convenience of "one plug, multiple uses" but also, through its compact modular design, helps customers optimize internal product structure and reduce production time. In hardware designs pursuing high integration and reliability, it is a quality choice that balances practicality and cost-effectiveness.
Salt spray testing: certain models feature a stainless steel housing with nano-coating technology, providing resistance to salt spray corrosion in coastal and industrial areas, preventing performance failure caused by increased contact resistance.

