Connection device with fluid connection and equipotential bonding

Abstract

The invention relates to a connection device (1) for a high-voltage storage device of a motor vehicle for connection to a temperature control device of the high-voltage storage device and to a high-voltage storage device-external, temperature control fluid-carrying line of a temperature control system of the motor vehicle, comprising - a fluid connection (2) made of an electrically insulating material for mechanical connection to a reference potential carrying part of the high-voltage storage device and for coupling to the temperature control device and the line for forming a fluid-carrying flow path (8) between the temperature control device and the line, and - a potential equalization device (10) for providing potential equalization between the temperature control device and the reference potential by means of the temperature control fluid, comprising a first electrical conducting element (11) which is arranged in a through-opening (13) in a wall (9) of the fluid connection (2) surrounding the flow path (8) and is at least adjacent to the flow path (8) for electrical contact with the temperature control fluid flowing through the flow path (8), and a second electrical conducting element (12) which is electrically and mechanically connected to the first conducting element (11), is arranged on an outside of the fluid connection (2) and can be electrically connected to the reference potential by mechanically connecting the fluid connection (2) and the part.

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