A charging connector for an electric vehicle

Abstract

The invention relates to a charging connector for an electric vehicle. The charging connector comprises a power side connector (1) and a vehicle side connector (2). The vehicle side connector (2) consists of a box body (3) and an electric connection socket (4); a self-centering tapered opening-closing clamp sleeve (7) is arranged on the box body (3); the box body (3) includes a clamp sleeve opening-closing guiding part (3.2); and the self-centering tapered opening-closing clamp sleeve (7) is arranged in the clamp sleeve opening-closing guiding part in a sliding manner. The self-centering tapered opening-closing clamp sleeve (7) includes an upper tapered clamp sleeve (7.1), a lower tapered clamp sleeve (7.2), and an electromagnetic opening-closing device (13). Besides, the power side connector (1) includes a plug (14) and a tapered clamping positioning part (17). At an actuation position, the self-centering tapered opening-closing clamp sleeve (7) sleeves the tapered clamping positioning part (17) for cooperative positioning. On the basis of the design of the tapered self-centering clamp sleeve having cooperation with the electromagnetic opening-closing device as well as the design of a power interruption structure popping out in a case of leakage, the plugging positioning function and the leakage protection function are enhanced substantially.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a charging connector for electric vehicles. Background technique [0002] As people pay more and more attention to the earth's environment, electric vehicles are becoming more and more popular in life. Therefore, charging the on-board battery pack is a problem that must be solved. When charging, insert the charging plug on the charging pile into the charging socket of the electric vehicle, and then turn on the switch of the charging pile to charge the on-board battery pack. [0003] The charging connectors of electric vehicles are mostly cylindrical. Corresponding socket contacts are also mostly cylindrical. By inserting the pin-shaped plug terminal provided on the opposite plug into the interior of the cylindrical socket contact, the inner peripheral surface of the socket contact contacts the outer peripheral surface of the plug terminal, and conducts electricity be...

AI Technical Summary

Problems solved by technology

There are also leakages caused by raindrops, water droplets, etc. This is a very dangerous thing, and measures must be taken to cut off the power

For the frequent use of the charging connector, the guiding structure of the charging connector becomes more and more loose. If there is a slight external force to pull the cable, it will cause a virtual gap between the plug terminal and the jack contact. This will cause heat rise, or serious damage accidents such as discharge breakdown

[0004] In the existing charging equipment, a lock-type mechanical locking device is usually used between the power supply side connector and the vehicle side connector. If the rocker mechanism in the charging plug is abnormally pressed during the charging process, it will cause The connector is separated; only relying on the mechanical locking device, it is difficult to ensure that the power side connector and the vehicle side connector are in a reliable connection state during the charging process

[0005] It is necessary to design a charging connector structure with simple structure and high reliability to solve the common problems in the industry

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