Column:News Release time:2025-08-06 Number of readers:64
In the rapidly evolving world of electric vehicles (EVs), every detail matters. From battery capacity to charging speed, each component in an EV ecosystem plays a vital role in enhancing performance and user experience. Among these, the automobile charging gun acts as the crucial link between the power grid and the vehicle. But within this essential device lies an unsung hero: the micro switch.
At Dewo Electronics, we specialize in manufacturing precision micro-switches that bring reliability, safety, and performance to a wide range of applications—including the heart of EV charging technology. In this blog, we’ll explore the application of Dewo micro-switches in charging guns, their benefits, and how they contribute to efficient and safe EV charging.
As electric mobility surges forward, the demand for a robust charging infrastructure continues to grow. One of the key components of this ecosystem is the car charging port, which is also known as the electric vehicle charging interface or charging cable. It’s more than just a cable; it’s a technologically advanced component designed to safely and efficiently transfer energy from the charging station to the vehicle’s battery.
Different EVs and charging environments require varying levels of power transfer, which has led to the development of several types of charging guns:
Level 1 Charging Guns: Basic home charging, using 120V outlets. These are ideal for overnight charging.
Level 2 Charging Guns: Common in residential and commercial settings, operating at 240V, offering faster charging with J1772 connectors.
DC Fast Charging Guns: High-voltage chargers (400V+), typically equipped with CCS or CHAdeMO connectors for rapid public charging.
Wireless Charging Guns: Still emerging, these use inductive charging technology and promise a cable-free future.
Each of these systems requires high-precision internal components to ensure smooth operation—and that’s where Dewo micro-switches come into play.
The charging gun may appear simple on the outside, but inside it houses a series of intricate components, including micro-switches, that ensure safety, functionality, and reliability. Dewo micro-switches are embedded in key mechanisms such as:
Trigger switches that detect when the gun is connected or disconnected.
Locking mechanisms that ensure the connector stays securely in place during charging.
Temperature detection systems that disengage the charging process in the event of overheating.
Status indicators that provide real-time feedback to users.
These switches serve as critical signal points—enabling or disabling current flow, communicating with the vehicle’s control unit, and ensuring mechanical actions are synchronized with electrical processes.
When selecting components for high-demand EV applications, performance and reliability are non-negotiable. Dewo micro-switches are engineered specifically for such standards. Here's why manufacturers trust Dewo:
Dewo switches are built to withstand millions of cycles, ensuring longevity in repeated connect/disconnect operations—vital for daily-use charging stations.
Our micro-switches operate with tight actuation tolerances, ensuring that even the slightest trigger—like inserting or removing a connector—activates the desired response instantly and accurately.
One of the critical requirements for EV charging systems—especially in outdoor or public environments—is resistance to water and environmental hazards. Dewo micro-switches are available in IP67-rated waterproof configurations, ensuring optimal performance even under rain, high humidity, or dusty conditions. This feature is essential for:
Outdoor charging stations
Harsh or variable weather environments
High-pressure car wash areas
By maintaining sealing integrity, Dewo switches protect internal electronics from corrosion, short circuits, or mechanical failure—making them ideal for reliable long-term operation in challenging conditions.
Given the space constraints inside modern charging guns, Dewo offers compact switch designs with customizable mounting options to fit seamlessly within various assemblies.
Dewo micro-switches can handle high currents and extreme temperatures, making them ideal for DC fast charging applications where thermal stress is a significant factor.
In EV charging, safety is paramount. Dewo switches ensure secure connections and proper engagement detection, preventing risks such as arcing, overheating, or accidental disconnection during charging.
Integrating Dewo micro-switches into EV charging guns is straightforward, thanks to our modular design and technical support. Here's a typical application process:
Connector Housing Design: Engineers design the internal space of the charging gun to include mounting points for the micro-switch.
Trigger Integration: The micro-switch is mounted behind the trigger mechanism, detecting user interaction.
Wiring & Communication: Switches are wired into the vehicle communication interface, enabling real-time feedback.
Testing & Calibration: Each assembled unit is rigorously tested to ensure precise actuation and durability.
Dewo also provides custom engineering services to optimize switch placement and performance for unique charging gun designs.
Ultimately, the goal of any EV charging system is to provide fast, safe, and user-friendly charging. The Dewo micro switches play a subtle but crucial role in achieving this goal. By ensuring every interaction with the charging gun—plugging in, locking, charging, and unplugging—happens seamlessly and safely, our switches help:
Minimize energy loss
Prevent user error
Enable smart diagnostics
Increase charging speed without compromising safety
Ensure dependable operation even in wet or dusty environments
In commercial EV fleets and public infrastructure, where environmental unpredictability is a factor, Dewo’s waterproof micro-switches provide unmatched stability and resilience.
As electric vehicles continue to replace combustion-engine models across the globe, the demand for high-quality charging systems will only grow. At Dewo Electronics, we are proud to contribute to this future with our innovative, waterproof, and dependable micro-switches.
Whether you're an EV manufacturer, charging station designer, or automotive system integrator, choosing Dewo means choosing precision, protection, and peace of mind.
Do you want to incorporate the Dewo waterproof micro switch into your charging gun design? Contact us today for technical consultations, samples, or customized solutions. Join the movement toward a smarter, cleaner automotive future—with Dewo at the switch.
