Attachment assembly, tolerance compensation assembly for an attachment device, and assembly method for attaching a battery module to a cooling device

A tolerance compensation assembly for an attachment device for attaching a battery module to a cooling device for cooling the battery module and for providing tolerance compensation between the battery module and the cooling device in a particular attachment direction, which extends in the direction from the battery module to the cooling device, comprising:

• a clamping cone, which can be arranged on a screw grip of a screw of the attachment device;
• and
• an expansion sleeve, by which the screw can be inserted with an end facing away from a screw head,
• wherein the expansion sleeve and the clamping cone are designed such that, when the expansion sleeve has relative movement with respect to the screw with the clamping cone arranged on the screw grip and the end of the screw passing through the expansion sleeve, such that the screw head moves in the direction of the expansion sleeve, and an end of the expansion sleeve facing the screw head, said end tapering in the direction of the screw head, is pushed partially over the clamping cone and expands.

An assembly method for attaching a battery module to a cooling device for cooling the battery module by an attachment device, comprising:

• the battery module is arranged on the cooling device;
• wherein a thermally conductive element is arranged on the cooling device such that the thermally conductive element is arranged between the cooling device and the battery module, before the battery module is attached by the attachment device;
• and
• the battery module has a first attachment component, which is attached to a second attachment component by the attachment device, said attachment component being provided by a part of the cooling device or being connected to the cooling device;
• wherein a tolerance between the first attachment component and the second attachment component in a particular attachment direction, which extends in the direction from the battery module to the cooling device, is compensated for during attachment of the first attachment component to the second attachment component, due to the attachment device.