Direct charge type electrical vehicle safety charge station/pile

Abstract

The invention discloses a direct charge type electrical vehicle safety charge station / pile comprising an alternate power supply unit, charge components, a charge management component, a charging socket or plug connected with the charge components and a previous power transmission control circuit which is arranged at the guiding end of the charging socket or plug and which is composed of a field effect transistor Q81, transistors Q82 and Q83 and peripheral components. The drain electrode of the field effect transistor and the emission electrodes of the transistors are connected to the charging socket or negative electrode of the plug, the source electrode of the field effect transistor Q81 is connected to the charging socket or negative electrode of the plug, the source electrode output end of the field effect transistor Q81 is connected to the base electrode of the transistor Q82, the grid electrode of the field effect transistor Q81 is connected to a voltage sampling circuit through a voltage stabilizing tube, the collecting electrodes of the transistors Q82 and Q83 are connected to the charging socket or negative electrode of the plug through a control relay, one switch contact end of the control relay is connected to an alternate current input, and one end is connected to one switch power supply input ends of the charging components; a charge switching on-off control circuit is formed through the transistor Q83 and the peripheral components; the base electrode of the transistor Q83 is connected to a switch-on admission control signal output end of the charge management component.

Description

technical field [0001] The invention relates to an electric vehicle charging station / pile, in particular to an electrical structure of a direct charging type electric vehicle safe charging station / pile. Background technique [0002] Electric vehicles are popularized rapidly due to the advantages of low purchase price, small size, easy storage, simple operation, convenient use and low cost of use. In order to facilitate the charging of electric vehicles and standardize the charging environment, the charging station came into being. At present, the structure of the widely popular charging station is as follows: the management system consisting of card swiping or coin-operated charging components and charging timing components is installed in a box, and the control box Lead out the power supply wire. The power supply wire is pasted on the wall in the same way as the household AC power supply and extends forward. Install a power socket at a certain distance. When the user needs ...

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the supply of 220V AC power supply, there are hidden dangers to the personal safety of the charging operator, which increases the difficulty and operational requirements of the charging operation

2. Users still use their own chargers, but the quality and performance of users' chargers are uneven, and most of them are inferior chargers. Accidents such as fires caused by chargers occur from time to time; charging also has a great impact on the performance and life of the battery. Great damage, significantly shorten the service life of the battery

3. Since the card swiping control box is far away from the electric vehicle, it is inconvenient for the user to swipe the card

4. The charging station of this structure does not have the function of rainproof and waterproof, that is, it can only be installed indoors. According to the national conditions, it is not realistic to let all electric vehicles be parked and charged indoors, so it is difficult to popularize this type of charging station.

5. The structure of the charging station still adopts the wiring form of AC power supply, which is insufficient in aesthetics

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