Connection between two battery modules of a battery system
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsPhilip Kotter, Anas Mnif, Tuncay Idikurt, Thomas Hoefler
Life of this patent
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Abstract
The invention relates to a device for producing an electrically conductive connection between two battery modules of an electrically drivable motor vehicle, comprising at least one clamping unit, which is composed of metal and can be clamped to a connection pole of a battery cell of a battery module or can be clamped to a cell connector that is arranged on the connection pole and that connects the connection pole in an electrically conductive manner to a connection pole of a further battery cell of the battery module.
Claims15
An apparatus configured to produce an electrically conductive connection between two battery modules of an electrically driveable motor vehicle, wherein the apparatus comprising:
- a clamping unit composed of metal,
- wherein the clamping unit is configured to be fixedly clamped to a terminal pole of a battery cell of a battery module or to a cell connector arranged on the terminal pole that connects the terminal pole to a terminal pole of a further battery cell of the battery module in an electrically conductive fashion,
- wherein the clamping unit comprises one of a U-shaped and a C-shaped form, wherein the clamping unit has two clamping limbs and a web that connects the two clamping limbs to one another, and wherein, when the clamping unit is fixedly clamped to the terminal pole or to the cell connector, respectively, at least one of the clamping limbs and the web is elastically deformed such that a restoring force is generated as a result of contact with the terminal pole or with the cell connector, respectively, and
- wherein at least one of the two clamping limbs has at least two spring lamellae arranged to run transversely with respect to the web, spaced apart from one another and parallel to one another;
- and
- a housing that accommodates the clamping unit and is composed of an electrically insulating material and has two elastically deformable protective limbs which are arranged parallel to one another and to the clamping limbs,
- wherein, on at least one protective limb, on a side of the protective limb which faces toward the respective other protective limb, there is arranged at least one protective rib which runs parallel to the spring lamellae and which engages from the outside between two mutually adjacently arranged spring lamellae such that, when the clamping unit is not fixedly clamped to the terminal pole or to the cell connector, respectively, the spacing between the protective rib and the protective limb situated opposite said protective rib is smaller than the spacing of the spring lamellae to the clamping limb situated opposite said spring lamellae.
A connecting device for producing an electrically conductive connection between two battery modules of an electrically driveable motor vehicle, wherein the connecting device has at least one flexible electrical conductor and at least one apparatus, which is connected in electrically conductive fashion to the flexible electrical conductor, wherein the apparatus comprises:
- a clamping unit composed of metal,
- wherein the clamping unit is configured to be fixedly clamped to a terminal pole of a battery cell of a battery module or to a cell connector arranged on the terminal pole that connects the terminal pole to a terminal pole of a further battery cell of the battery module in an electrically conductive fashion,
- wherein the clamping unit comprises one of a U-shaped and a C-shaped form, wherein the clamping unit has two clamping limbs and a web that connects the two clamping limbs to one another, and wherein, when the clamping unit is fixedly clamped to the terminal pole or to the cell connector, respectively, at least one of the clamping limbs and the web is elastically deformed such that a restoring force is generated as a result of contact with the terminal pole or with the cell connector, respectively, and
- wherein at least one of the two clamping limbs has at least two spring lamellae arranged to run transversely with respect to the web, spaced apart from one another and parallel to one another;
- and
- a housing that accommodates the clamping unit and is composed of an electrically insulating material and has two elastically deformable protective limbs which are arranged parallel to one another and to the clamping limbs,
- wherein, on at least one protective limb, on a side of the protective limb which faces toward the respective other protective limb, there is arranged at least one protective rib which runs parallel to the spring lamellae and which engages from the outside between two mutually adjacently arranged spring lamellae such that, when the clamping unit is not fixedly clamped to the terminal pole or to the cell connector, respectively, the spacing between the protective rib and the protective limb situated opposite said protective rib is smaller than the spacing of the spring lamellae to the clamping limb situated opposite said spring lamellae.
An assembly for producing an electrically conductive connection between two battery modules of an electrically driveable motor vehicle, having at least one cell connector by way of which terminal poles of two battery cells of a battery module are connectable to one another in an electrically conductive fashion by way of an apparatus, wherein the apparatus comprises:
- a clamping unit composed of metal,
- wherein the clamping unit is configured to be fixedly clamped to a terminal pole of a battery cell of a battery module or to a cell connector arranged on the terminal pole that connects the terminal pole to a terminal pole of a further battery cell of the battery module in an electrically conductive fashion,
- wherein the clamping unit comprises one of a U-shaped and a C-shaped form, wherein the clamping unit has two clamping limbs and a web that connects the two clamping limbs to one another, and wherein, when the clamping unit is fixedly clamped to the terminal pole or to the cell connector, respectively, at least one of the clamping limbs and the web is elastically deformed such that a restoring force is generated as a result of contact with the terminal pole or with the cell connector, respectively, and
- wherein at least one of the two clamping limbs has at least two spring lamellae arranged to run transversely with respect to the web, spaced apart from one another and parallel to one another;
- and
- a housing that accommodates the clamping unit and is composed of an electrically insulating material and has two elastically deformable protective limbs which are arranged parallel to one another and to the clamping limbs,
- wherein, on at least one protective limb, on a side of the protective limb which faces toward the respective other protective limb, there is arranged at least one protective rib which runs parallel to the spring lamellae and which engages from the outside between two mutually adjacently arranged spring lamellae such that, when the clamping unit is not fixedly clamped to the terminal pole or to the cell connector, respectively, the spacing between the protective rib and the protective limb situated opposite said protective rib is smaller than the spacing of the spring lamellae to the clamping limb situated opposite said spring lamellae.
Dependencies are inferred from the claim text.