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TECHNICAL FIELD
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The present application relates to a wall mountable Direct Current (DC) electric vehicle charger.
BACKGROUND
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Nowadays, electric vehicles comprise an onboard Alternate Current (AC) to DC converter that allows battery charging with AC electric power, a type of power easily available in many places requiring relatively simple chargers. Due to its size, weight and cost, the onboard converter is limited in amount of power, which entails, in the case of many vehicle models, the charging process usually taking several hours before completion.
In order to charge faster, higher power converters are used off board, supplying DC power to the electric vehicle's battery. For example, document US2013020993A1 disclose such a charger. Since fast charging DC chargers require considerable power, these are normally embodied in floor standing units, not suitable to installation in every place.
The document IEC 61851-23:2014, an international standard prepared and published by the International Electrotechnical Commission, gives the requirements for DC electric vehicle charging stations, for conductive connection to the vehicle, with an AC or DC input voltage up to 1000 V AC and up to 1500 V DC according to IEC 60038. It provides the general requirements for the control communication between a DC electric vehicle charging station and an electric vehicle. The requirements for digital communication between DC electric vehicle charging station and electric vehicle for control of DC charging are defined in IEC 61851-24.
Wall mountable chargers overcome the cited problems since they have a reduced weight and size, allowing an easy installation procedure in most places. The problem is that these are usually only achieved for the AC type.
SUMMARY
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The present application discloses a wall mountable electric vehicle charger, comprising: two fixing wall supports mounted on the back of the charger, used to fix the charger to the wall and to create a space between these in which the airflow circulates; a modular AC to DC converter unit comprising at least one removable/insertable high frequency AC to DC power converter module placed in the interior back of the charger; a cooling system with input and output channels placed on the back of the charger spaced between 1 cm to 20 cm apart; a wireless network interface; and a central processing unit configured to control the cooling system and to operate the wireless network interface to communicate with a mobile computational device;
wherein the number of high frequency power converter modules included in the modular AC to DC converter unit adjustable in order to achieve the desired output power.
In one embodiment, the electric vehicle charger further comprises a movable front panel wherein the power converter modules are inserted and removed through the entry created by moving said panel.
In another embodiment, the wireless network interface uses any of the following communication protocols: Wi-Fi; Bluetooth; Infrared; Near Field Communication; or any other wireless communication protocol.
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(20min delay)