Electric vehicle alternating current charging gun with integrated control circuit hidden in gun body

Abstract

The invention discloses an electric vehicle alternating current charging gun with a control circuit hidden in a gun body. The charging gun comprises a power plug, a gun connecting electric wire, a charging control circuit component, a charging plug assembly, a gun body, a tail cover, a connecting plate and a cover plate. The power plug, the gun connecting electric wire, the charging control circuit component and the charging plug assembly are electrically connected, and the charging plug assembly and the charging control circuit component are both arranged in the charging gun body. The charging control circuit part is integrated in the gun body, so that an upper shell and a lower shell of a charging control box are omitted, cost is reduced, and the charging gun is miniaturized and integrated. The electric plug assembly, the tail cover, the connecting plate, a switch and the gun body are sealed, so all connecting positions of the charging gun are sealed, and the protection level is improved to IP67 from existing IP55. Drain holes are formed in the lowest positions of the front-end low-position cavity and the tail low-position cavity of the gun body, so even if a small amount of leaked water exists, the leaked water can be drained in time, short circuit of a control circuit cannot be caused, and the service life of the charging gun is prolonged.

Description

Technical field: [0001] The invention relates to the technical field of charging guns for electric vehicles, in particular to AC charging guns for new energy electric vehicles. Background technique: [0002] The existing AC charging guns for new energy electric vehicles include power plugs, connecting wires, charging control boxes, connecting wires, charging gun bodies, charging plugs and dust covers. The charging control box is the charging control part in the charging device. , the integrated control circuit is installed in the box. The new energy electric vehicle AC charging gun with this structure is not only connected in segments, but also the charging control part and the charging plug part are set separately. The integrated circuit board in the charging control part is a whole piece The single-board structure not only needs to be sealed and installed with a special large-section charging control box, but the two ends of the connecting box line are respectively connect...

AI Technical Summary

Problems solved by technology

[0002] The existing AC charging guns for new energy electric vehicles include power plugs, connecting wires, charging control boxes, connecting wires, charging gun bodies, charging plugs and dust covers. The charging control box is the charging control part in the charging device. , the integrated control circuit is installed in the box. The new energy electric vehicle AC charging gun with this structure is not only connected in segments, but also the charging control part and the charging plug part are set separately. The integrated circuit board in the charging control part is a whole piece The single-board structure not only needs to be sealed and installed with a special large-section charging control box, but the two ends of the connecting box line are respectively connected to the integrated circuit board and the power plug in the charging control box, and the two ends of the connecting gun line are respectively connected to the The integrated circuit board of the charging control box and the charging plug are sealed and connected, and the wires between the power plug and the charging plug are connected in four places, and the charging control box is required to be installed indoors to prevent leakage and short circuit in the rain, and is used to package the charging control integration The charging control box of the circuit board needs to be specially molded and pressed, and the gun body of the charging gun also needs to be molded and pressed. The structure of the product is complex, there are many parts, and the requirements for production, assembly and use are high. It cannot be integrated with the charging gun, it is inconvenient to use and maintain, and it does not meet the requirements of product miniaturization. Users require that the charging control box and the charging gun be integrated, and the structure is compact

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