Reed Technology for Isolation Measuring at E-Cars

New challenges in electric and hybrid vehicle drivetrains have forced designers to look for new ways to isolate high voltage levels in these systems. Typical systems were run on 12 or 24V, however these systems are now being run off of 400V and higher. This introduces a completely new set of requirements for OEM’s and system module suppliers. The new requirements now must isolate these high voltage levels from other electrical systems in the vehicle, and also ensure the passengers are isolated as well.
The isolation requirement is necessary for many applications within the electric and hybrid vehicles, including the battery system, DC/DC converter, inverters and charging systems that tie into the power grid. These vehicles require an internal measuring system in order to ensure these levels are isolated between the electronic components and frame of the vehicle. In order to connect or isolate these two systems for measuring, a high isolation relay is required.
Reed relays from MEDER electronic are able to fulfill this requirement. Despite their small size, these relays have an isolation resistance of over 10 T Ohms. These relays offer very high breakdown voltages, exceeding 5kVDC across the contacts. Another advantage of these reed relays is low power consumption, as they only need power during the switching process. This improves the overall efficiency of the system. Reed relays from MEDER electronic are well sealed, making them a robust solution in these harsh environments.

Isolation Measuring E-Car English

Isolation Measuring E-Car German

KT Relays Series / LI Relays Series 

Reed Sensor Solution for E-Car Connector Detecting

Around 100 years after their invention, electric vehicles are experiencing a renaissance. If you believe the message of the IAA in Frankfurt, most cars will soon rely on electricity and it is considered a challenge to ensure the safe and efficient charging cycle of electric vehicles.
To avoid potential electrical accidents and arcs, the current flow between the plug and socket must be continuously monitored. This means tiny sensors continually check the correct position of the connector into the port and interrupt the power supply should the need arise. There is an option to control additional functions with the sensors, such as an immobilizer, power indicator, locking, etc.
Ideal for this application are MEDER Reed sensors. These are hermetically sealed and therefore resistant to any environmental influences such as heat, rain, ice and cold. MEDER’s high quality sensors can achieve over one billion cycles, moreover reed switches are very environmentally friendly as they consume no power and for switching only one permanent magnet is required. These products are designed to the customers requirements for the magnetic sensitivity and assembly method. MEDER Reed products mean owners of electric cars don’t have to worry when charging their vehicles and thus make a significant contribution to the security and the development of electrically driven automobiles.

E-Car Connector Detecting English

E-Car Connector Detecting German

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MK21 / MK22 / MK23

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