Wide-range integrated metering and billing device for electric automobile direct current battery chargers
A technology for DC charging and electric vehicles, which is applied to coin-operated equipment for distributing discrete items, coin-operated equipment for renting items, and instruments. It can solve problems such as high cost, low verification efficiency, and complicated operation. Improve efficiency, reduce verification costs, and reduce disputes
Pending Publication Date: 2018-08-14
STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT
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- Application Information
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Problems solved by technology
[0004] The distribution of DC chargers in the city is relatively scattered, and the chargers can only be verified by means of real loads. The verification efficiency is low, the operation is complicated, and the cost is high.
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[0029] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0030] Such as figure 2 The electric vehicle DC charger wide range integrated metering and billing device integrates the original shunt, metering unit and billing control unit, and packages the shunt, metering unit and billing control unit in one body, that is, the same shell in vivo. The metering unit is responsible for the collection and metering of the electric energy used by the DC charger, and sends the collected voltage, current and electric energy information to the billing control unit; the billing control unit is responsible for interacting with the user to complete the charging mode selection, charging equipment control, and charging cost calculation; the shunt provides the current sampling signal to the metering unit, and performs voltage sampling through the resistor divider; the metering unit and the bil...
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The invention discloses a wide-range integrated metering and billing device for electric automobile direct current battery chargers. The direct current battery chargers are distributed dispersively inthe city, the battery chargers can only be verified by means of real load, the verification efficiency is low, the operation is complicated, and the cost is higher. The wide-range integrated meteringand billing device comprises a measurement unit, a billing control unit and a shunt, and the measurement unit, the charging control unit and the shunt are respectively encapsulated in a same shell body; the measurement unit is responsible for the collection and measurement of the power consumption amount of the direct current battery chargers and transmitting collected voltage, current and powerconsumption amount information to the billing control unit; the billing control unit is responsible for interacting with users to complete charging mode selection, charging equipment control and charging expense calculation. The wide-range integrated metering and billing device for the electric automobile direct current battery chargers has the advantages that the verification efficiency can be improved, the verification cost is reduced, behaviors such as replacing shunt are effectively avoided, and the accuracy of electric energy metering and billing of the direct current battery chargers andthe requirements for installation and verification are ensured.
Description
technical field [0001] The invention belongs to the field of electric energy metering and billing, in particular to a wide range integrated metering and billing device for an electric vehicle DC charger. Background technique [0002] At present, the metering scheme of DC chargers for electric vehicles generally adopts the method of attaching a shunt to a DC electric energy meter to measure electric energy. When the current passes through the shunt, the current is sampled, and the sampling signal is connected to the DC electric energy meter for measurement. , did not use an integrated design for packaging, resulting in the possibility of the shunt being replaced during use, which is prone to disputes and lacks credibility. In addition, the metering unit and billing control unit of the DC charger are installed separately, the functions of each part are repeated, and the utilization rate is low. The two functional units occupy a large space inside the charger, and the layout an...
Claims
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IPC IPC(8): G07F15/00
CPCG07F15/005
Inventor 陆春光袁健杨思洁
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT