Attachment assembly, tolerance compensation assembly for an attachment device, and assembly method for attaching a battery module to a cooling device
AssigneeAudi AG
InventorDirk Hoefner
Life of this patent
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Abstract
An attachment assembly with a battery module, a cooling device, and an attachment device for attaching the battery module to the cooling device. The battery module is arranged on the cooling device. A heat-conducting element is arranged between the battery module and the cooling device. The battery module has a first attachment component. The attachment assembly has a second attachment component, which is provided by a part of the cooling device or is connected to the cooling device. The first attachment component is attached to the second attachment component by the attachment device.
Claims10
An attachment assembly for securing a battery module of a motor vehicle, the attachment assembly comprising:
- a cooling device for cooling the battery module, and
- an attachment device comprising a screw head which secures the battery module against the cooling device,
- wherein a thermally conductive element is provided to fill gaps between the battery module and the cooling device,
- wherein the battery module comprises a first attachment component comprising a cylindrical passage, which is secured by the attachment device to a second attachment component,
- wherein the second attachment component is part of the cooling device or is connected to the cooling device,
- wherein the attachment device is configured to accommodate a gap between the first and second attachment components in an installed state,
- wherein the screw head has a larger diameter than the cylindrical passage, and
- wherein the attachment device is screwed into the second attachment component until a
- predetermined screw torque is reached and, in the installed state, there is a gap between the screw head and the first attachment component.
A method for securing a battery module against a cooling device for cooling the battery module, comprising:
- applying a thermally conductive element to the cooling device, the thermally conductive element provided to fill gaps between the cooling device and the battery module,
- arranging the battery module on the cooling device, and
- securing the battery module against the cooling device using an attachment device, the attachment device comprising a screw head,
- wherein the battery module comprises a first attachment component comprising a cylindrical passage, which is secured by the attachment device to a second attachment component,
- wherein the second attachment component is part of the cooling device or is connected to the cooling device,
- wherein the attachment device is configured to accommodate a gap between the first and second attachment components in an installed state,
- wherein the screw head has a larger diameter than the cylindrical passage, and
- wherein the attachment device is screwed into the second attachment component until a
- predetermined screw torque is reached and, in the installed state, there is a gap between the screw head and the first attachment component.
Dependencies are inferred from the claim text.