Waterproof Micro Switches: Essential Components for EV Charging Solutions

07/18/2025

With the global shift toward sustainable transportation, new energy vehicles (NEVs) are rapidly replacing traditional fuel-powered cars. Supporting this green transformation is the growing infrastructure of electric vehicle (EV) charging systems, including charging piles, charging guns, and onboard charging components. Ensuring the safe and efficient operation of these systems are small yet powerful components—waterproof micro switches.

Designed for durability, precision, and resistance to harsh environments, waterproof micro switches play a crucial role in the functionality and reliability of EV charging devices.


The Role of Charging Piles in the EV Ecosystem

Much like traditional gas dispensers at fuel stations, charging piles serve as the energy transfer point for electric vehicles. These units supply electricity to the EV’s battery through a connection with a charging gun, a hand-held connector operated by the user.

Charging piles can be:

  • Fixed on the ground or mounted to a wall, depending on installation needs

  • Installed in public buildings, such as shopping malls, office complexes, airports, and public parking areas

  • Deployed in residential communities or large-scale EV charging stations

To operate safely and reliably in these various environments—often outdoors and exposed to the elements—charging equipment must be equipped with robust, waterproof components.


Why Waterproof Micro Switches Are Crucial

EV charging systems operate under strict performance requirements. They must function reliably regardless of weather, temperature, or operating frequency. Waterproof micro switches provide the necessary resilience to support these conditions.

These switches are designed with sealed enclosures to meet high waterproof ratings (commonly IP67 or above), preventing water, dust, and debris from entering the switch mechanism. They also offer long mechanical life—capable of withstanding millions of actuations—making them ideal for daily, high-frequency use.

In EV charging systems, waterproof micro switches are commonly used to detect and control key functions, such as:

  • Plug-in detection in the charging gun (confirming a secure connection to the vehicle)

  • Safety interlock mechanisms to prevent current flow before full connection

  • Access panel status (open/closed detection) in charging piles

  • Mechanical interface triggers for system feedback and diagnostics


Versatile Design Options for Diverse Charging Needs

Waterproof micro switches used in EV charging systems are available in a variety of actuation and electrical configurations, making them suitable for both standard and custom designs.

Key features include:

  • Lever options: Standard straight lever, roller lever, or customized actuators to meet specific design needs

  • Terminal choices: Solder, PCB mount, or quick-connect terminals for easy installation

  • Voltage adaptability: Compatible with low-voltage signal control or higher-voltage power switching, depending on the charging level (e.g., Level 1, 2, or DC fast charging)

This wide range of design options allows manufacturers to integrate waterproof micro switches seamlessly into all types of EV chargers—from compact residential wall boxes to high-power public charging stations.


Built for Harsh Environments and Reliable Performance

The outdoor and semi-public environments where EV chargers are installed often expose equipment to extreme conditions such as:

  • Rain and humidity

  • Temperature fluctuations

  • Dust and debris

  • Frequent mechanical usage

Yibao’s waterproof micro switches are engineered to perform reliably in these conditions. Constructed from high-quality, corrosion-resistant materials, they maintain consistent electrical performance even after prolonged exposure to moisture and rough handling. Their sealed housing ensures the internal contacts remain protected, extending product life and reducing maintenance costs.


Supporting the Growth of New Energy Vehicles

Yibao Switch is proud to support the rapid expansion of the EV market with a reliable line of waterproof micro switches tailored to the demands of modern charging systems. We understand that safety, durability, and performance are non-negotiable when it comes to energy infrastructure—and we meet these needs with globally certified, precision-manufactured components.

Whether you’re developing charging equipment for public stations, private residences, or commercial fleets, Yibao’s waterproof micro switches offer the protection, flexibility, and long-term performance your designs require.


Choose Yibao Switch—Smart Components for the New Energy Era.