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Precision Components for Every Modern Car Charging System

JONHON manufactures the essential high-voltage interconnect components that are the backbone of every modern car charging system. Our connectors, inlets, and harnesses are engineered for seamless integration, whether it's for the vehicle's on board charger or the external charging station. We design for maximum efficiency, safety, and durability, ensuring reliable communication and power flow. With our deep expertise in ev charging networks and standards, we provide the technology that makes car charging system components perform flawlessly, from the evse electric vehicle supply equipment to the vehicle's battery.
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Why choose us?

Engineered by the World's Largest Team of Interconnection Experts

Our EV chargers benefit from the expertise of over 3600 engineers, including a dedicated team of 400 focused on EV solutions. This massive engineering capacity allows us to innovate rapidly and solve complex challenges in charging technology, ensuring our chargers are at the forefront of performance and safety.

Built on a Foundation of Extensive EV-Specific Patents

With over 300 authorized patents specifically related to electric vehicle technology, our EV chargers are protected by a vast portfolio of intellectual property. This means you are getting a product that incorporates unique, proven solutions for efficiency, durability, and smart charging capabilities that are not available elsewhere.

Designed in Accordance with Leading Industry Standards

Our engineers have played a key role in shaping the future of EV charging by formulating 7 IEC standards and over 10 Chinese standards. Our EV chargers are developed with this deep standard-setting expertise, guaranteeing compliance, safety, and interoperability with charging networks and vehicles globally.

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A car charging system for an electric vehicle is a comprehensive assembly of components and software that manages the transfer of electrical energy from an external power source to the vehicle's high-voltage battery. This system includes both the off-board infrastructure (the charging station or Electric Vehicle Supply Equipment) and the on-board components. The off-board system provides the AC or DC power, communication protocols, and safety controls. The on-board system includes the charging inlet, cabling, the on-board charger (for AC charging), the battery management system (BMS), and the high-voltage distribution unit that routes power to the battery. A critical element bridging these two halves is the physical connector—the charging gun and inlet—which must perform flawlessly under all conditions. JONHON is a world-class manufacturer specializing in the high-voltage interconnect components that are fundamental to the safety and reliability of any car charging system. Our charging inlets, mounted on the vehicle, are engineered to withstand years of environmental exposure and repeated plug-ins. Our charging guns, used on the station side, are designed for ergonomic ease and exceptional durability. JONHON's engineering team, with over 400 dedicated EV engineers and over 300 EV-related patents, focuses on optimizing these components for high electrical performance, thermal management, and mechanical robustness. Safety is an integral part of the car charging system, and JONHON's connectors incorporate high voltage interlock (HVIL) circuits that work with the vehicle's BMS and the charging station to ensure power is only applied when a secure connection is verified. This prevents arcing and protects users and technicians. Furthermore, our deep involvement in formulating 7 IEC standards ensures our components are designed for global interoperability, a key requirement for modern car charging systems. For automotive OEMs and Tier 1 suppliers, partnering with JONHON means integrating interconnect solutions that enhance the overall safety, reliability, and user experience of the entire car charging system. Please contact us to discuss your specific requirements.

Frequently Asked Questions

Has JONHON contributed to industry standards?

Yes, our technical experts have played a significant leadership role in the industry by formulating 7 international IEC standards and over 10 Chinese national standards for electric vehicle connectivity.
Our solutions are trusted globally by a wide customer base, with over 600 international clients relying on our products for their EV applications.
To support our global customers, we have established a subsidiary in Germany, tech centers in Korea and America, three local hubs in Germany, Estonia, and Vietnam, and a subsidiary in Vietnam. We also have 8 branch offices and 14 domestic tech support locations.
Reliability is at the core of our philosophy. We achieve it through our "Focusing on customer needs and quality" approach, leveraging our vast engineering expertise, patented technologies, and adherence to strict international standards we helped create.

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Customer Reviews

Franziska Bauer

Coordinating a large charger installation in Germany was made easy by JONHON's local subsidiary. They handled all the technical specifications for the local grid and managed the permitting support, acting as a true local partner.

Toomas Lepp

Our charging site in Estonia had a network integration issue. The team from JONHON's local hub in Estonia was on-site within hours to diagnose and fix the problem. Their regional responsiveness is exceptional.

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Engineered by a Dedicated Team of EV Specialists

Engineered by a Dedicated Team of EV Specialists

JONHON's EV chargers are developed by a highly specialized team of approximately 400 engineers within its electric vehicle business unit. This focused expertise, drawn from a total engineering force of over 3600, ensures that the chargers are designed with a deep understanding of electric vehicle architectures, charging protocols, and the specific demands of high-voltage systems for optimal performance and safety.