Gallery View: Smaller, faster EV charging stations on the way

Growing popularity of electric vehicles drives initiatives in charging station design, manufacturing.

Increasing adoption of electric vehicles will boost demand for charging stations for residential and commercial installations. Market volume of these recharging points is projected to reach about 2.798 million units by 2027, posting a CAGR of 17.5 percent from 2017, according to Research and Markets. In 2020, the total was approximately 905,000 units valued at $26.09 billion.

In China, government support for construction of EV charging stations exists in the form of both funding and mandates. "China State Grid and China Southern Grid, China's two state-owned electric utilities, both have programs to promote the development of electric vehicle charging infrastructure," according to Columbia University's Guide to Chinese Climate Policy.

With a growing market and a conducive industry environment, Chinese manufacturers of EV charging stations are pushing on with their product development initiatives, focusing on smaller designs and fast chargers. Some are introducing smart features for efficient charging, based on the available power capacity of the vehicle being charged.

AC, DC and AC/DC charging types are widely available in China. By rated voltage, there are 200 to 500V, 350 to 700V and 500 to 950V versions, providing charging current of 80, 100, 125, 160, 200 or 250A.

Standard charging stations have 32A output current and 12kW rated power, while fast charging types deliver up to 80A and 120kW. All have overload, overheating and short-circuit protection. Water resistance ratings range from IP54 to IP65.

Products typically carry CB, CE, RoHS, TÜV and UL approval.

Key components used in the manufacture of EV charging stations include control modules, smart meters, charging plugs, LEDs and circuit breakers. These and housing materials are sourced from domestic or foreign suppliers, depending on customers' preferences.

Input costs and product prices are expected to stabilize in 2022.

220VAC, 0 to 32A output

Jiangsu Acrel Electrical Macturing Co. Ltd's EV charging station, the AEV-AC007D-9955, has 220VAC±15 percent input voltage, 220VAC, 0 to 32A output and 45 to 55Hz operating frequency. Rated power is 7kW. This IP65-rated unit, with a single-phase three-wire input connection, operates in-20 to 55 C.

The negotiable minimum order is for delivery within three days.

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7kW rated power

Rated at 7kW, this AEV-AC007D-5804 EV charging station from Jiangsu Acrel Electrical Mfg Co. Ltd has 220VAC±15 percent input voltage, 220VAC, 0 to 32A output, 45 to 55Hz operating frequency and -20 to 55 C operating temperature. The IP65-rated unit uses a single-phase three-wire input connection.

Order quantity is negotiable. Delivery is within three days.

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3.7, 7.2, 11, 22kW power ratings

Available in 3.7, 7.2, 11 and 22kW versions, the DLB-9791 EV charging station from Zhejiang Inovus Technology Co. Ltd has 230V±20 percent rated supply voltage in single- phase version and 400V±20 percent in three-phase counterpart. It rated operating frequency is 50/60Hz and current rating 16 or 32A . This IP55-rated unit meets IEC 61851, CB, CE and RoHS requirements.

A minimum order of 50 cartons is for delivery within 15 days.

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Rated at 400 to 415VAC, 50/60Hz

The EWB-432-TC2 EV charging station from Zhejiang Inovus Technology Co. Ltd has 400 to 415VAC rated supply voltage, 50/60Hz operating frequency, 32A current and 22kW power. This IP55-rated unit meets CB, CE and RoHS standards.

A minimum order of 50 cartons has a 25-day lead time.

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Single-, three-phase versions

This E5T2332_10y EV charging station from Zhejiang Vekon Technology Co. Ltd comes in single- and three-phase and cable and socket versions, all with an IP55 rating. It meets IEC 61851-1 requirements.

Order quantity is negotiable. Lead time is 15 days.

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IP55 rating

Zhejiang Vekon Technology Co. Ltd's E5T2332_2aa EV charging station is available in single- and three-phase versions with an IP55 rating. This product complies with IEC 61851-1 standards.

The minimum order is negotiable. Delivery takes 15 days.

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