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Cracking the charge station thermal code
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Whether for carbon emission reduction, tax incentive, or cost-saving, electric vehicle (EV) sales have been surging. The rising number of EVs causes the increasing infrastructure of charging stations. The more EVs on the road, the more charging stations to be built.
What is a charging station?
Charging station, also known as the EV charger, is the equipment that provides electrical power for charging plug-in electric vehicles (PHEV) and EVs (hybrids are charged by regeneration or by the engine). There are two types of charging current, AC and DC, and three levels of charging stations (see chart ).
AC charging stations can be installed at home, workplace, or in public. DC ones are often installed in public due to their high costs.
EV charging station is defined in level 1, 2, and 3. Currently, Level 2 is most commonly used for daily EV charging whilst level 1 is way too slow for driving on daily basis. Level 3 is DC fast charging, which only takes 30 to 40 mins to charge batteries from 10% to 80%.
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The faster the better! Drivers want to hit the road asap, thus, reducing charging time is a critical issue for charging station providers. Superfast charging requires high power (kW) to reduce charging time, however, high power delivery will generate heat and result in potential overheating risk. Proper thermal management helps tackle heat efficiency, achieve optimal performance and
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boost charging speed. Heat sink, air cooling, and liquid cooling are thermal products commonly implemented for charging stations that we’d like to share with you.
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Heat Sink
To efficiently dissipate the heat, enable fast charging, and stabilize the operating system without overheating issues. Heat sinks are extensively implemented in the EV industry. Based on the requirement of thermal performance and application. Zaward can assist our customers in the development and provide comprehensive cooling solutions, from diversified process heat sinks, such as extruded, cold-forged, die-cast, bonded, skived, FSW, stamped and CNC machine, etc, to tackle the heat issues.
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Air Cooling
AC fan offers constant airflow with less power consumption and generates massive CFM with corrosion resistance particularly suitable for tough, arduous industrial working environments. Compacted with high-quality bearing, silicon steel, and enameled wire advance reliability specifically for operating temperatures from -20 to 70℃.
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Liquid cooling
To fulfill a higher level of charging, the liquid cooling system is one of the critical factors. Cold plate is a popular thermal solution in many applications, such as EV battery packs, vehicle inverters, and EV charging stations. It employs the heat pipe, path, or tube to the heat sink with flowing liquid that intelligently absorbs heat sources in a cycled process-evaporating, adiabatic transporting, and condensing. This process offers supreme thermal conductivity, flexible channel design, high stability, and a long lifetime whilst ensuring equipment operation under proper temperature, it is recommended for high power consumption equipment
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Zaward provides comprehensive product lines of thermal solutions. From DC/AC fan, diversified processes of heat sink, to peripheral components such as heat pipes, fan guards, and thermal pads. We are always well prepared to solve any cooling issues with our best passion for customers worldwide.
For more product details, please feel free to visit our website. Any inquiries about thermal solutions are welcome. If you have any questions, please contact us. Any topics you want to know more about, share your thoughts with us.
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With best regards,
ZAWARD CORPORATION
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Carmen Chen/ Managing Director
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© 2020 ZAWARD CORPORATION.
5F.-4, No.130, Jiankang Rd., Zhonghe Dist., New Taipei City 23585, Taiwan
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