Charging pile with zero standby power consumption

Abstract

The invention discloses a charging pile with zero standby power consumption. The charging pile comprises first to Nth charging modules, a CAN communication bus, a monitoring system and a dry contact control bus, wherein first control terminals of the first to Nth modules are all connected with the monitoring system through the CAN communication bus; second control terminals of the first to Nth modules are all connected with the monitoring system through the dry contact control bus; the monitoring system is used for monitoring whether the charging modules output electric currents through the CAN communication bus; if the monitoring system does not detect that the charging modules output electric currents, the monitoring system sends first control signals to the charging modules through the CAN communication bus; the charging modules start to enter a standby mode after receiving the first control signals; and after the charging modules stay in the standby mode for a preset time, the monitoring system sends second control signals to the charging modules through the dry contact control bus to turn off auxiliary power supplies in the charging modules. The charging pile can realize zero standby power consumption.

Description

Technical field [0001] The invention relates to a charging pile, in particular to a charging pile with zero standby power consumption. Background technique [0002] At present, electric vehicle charging piles are composed of charging modules, monitoring, billing, display, AC and DC power distribution, etc. The charging module is the core component of the charging pile. A charging pile generally consists of several charging modules working in parallel to provide sufficient charging current. The work of the charging module is controlled by the monitoring system, which controls the startup, shutdown, output voltage and output current of the charging module through the CAN communication bus. When there is no car charging, the monitoring system will close the charging module through CAN communication and make the charging module in a standby state. When the charging module is in standby, it needs to accept the commands of the monitoring system at all times. Therefore, the auxiliary ...

AI Technical Summary

Problems solved by technology

When the charging module is in standby, it needs to accept the command of the monitoring system at all times, so the auxiliary power supply inside the charging module must be in the running state all the time, and the auxiliary power supply will generate losses. Each charging module will generate a loss of 10-20 watts. For a configuration of 8 As far as the charging pile of a charging module is concerned, there will be a loss of up to 160W during standby. If there is no car charging for one night, there will be a loss of 1-2 kWh of electricity, and there will be a power loss of about 600 kWh a year.

At the same time, the auxiliary power supply inside the charging module is always in working condition, which will also affect the service life of the charging module

Images