Liquid container for controlling the temperature of battery cells, comprising two main bodies

Abstract

A liquid container for controlling the temperature of battery cells (1) comprises two main bodies (2a, 2b), which, when assembled, delimit a flow channel (3). For ultrasonic welding, one main body (2a) has an at least partially peripherally extending groove (7) and one main body (2b) has an at least partially peripherally extending tongue (8) for insertion into the groove (7). A stable and fluid-tight connection between the main bodies (2a, 2b) is possible. Before the ultrasonic welding the width (11) of the tongue (8) exceeds the width (12) of the groove (7) and the lateral surfaces (13) of the tongue (8) form peripherally extending welding surfaces that are seated against the groove walls (14).

Dependencies are inferred from the claim text.