LID FOR A BATTERY MODULE, BATTERY MODULE ARRANGEMENT AND BATTERY

Abstract

The present invention relates to a lid for a battery module, in particular in an electric vehicle, comprising a cover section for pole-side attachment of the lid to the battery module, and tabs which are provided at opposite ends of the cover section, are arranged inclined relative to the cover section and, in a state in which the lid is installed on the battery module, extend from the cover section in a direction pointing away from the battery module.

Claims

1: A lid for a battery module, comprising a cover section for pole-side attachment of the lid to the battery module, and tabs which are provided at opposite ends of the cover section, arranged inclined relative to the cover section and, in a state in which the lid is configured to be installed on the battery module, extend from the cover section in a direction pointing away from the battery module.

2: The lid according to claim 1, wherein the tabs each form a flange, in particular for attaching the cover to a carrier structure of at least one of: a battery and a further cover of a battery module.

3: The lid according to claim 1, wherein the tabs have at least one connecting element which is complementary to a mounting tool, wherein the at least one connecting element is configured to mechanically connect the lid to the mounting tool in a detachable fashion.

4: The lid according to claim 3, wherein the at least one connecting element is a through-opening which passes through the tabs.

5: The lid according to claim 1, wherein the tabs extend along a longitudinal side of at least one of: the lid and the battery module.

6: The lid according to claim 1, wherein in the state in which the lid is mounted on the battery module the tabs project beyond the battery module along a transverse direction of at least one of: the lid and the battery module on at least one side.

7: The lid according to claim 1, wherein in the state in which it is mounted on the battery module, a width of the lid along a transverse direction (Y) of at least one of: the lid and the battery module is greater than or equal to a width of the battery module.

8: The lid according to claim 1, wherein the tabs are inclined substantially about 90° relative to the cover section.

9: The lid according to claim 1, wherein said lid has a U-shaped profile in cross section, wherein the cover section forms a web, and the tabs adjoining the web form limbs of the U-shaped profile, and wherein in the state in which the lid is mounted on the battery module the outer side of the web of the U-shaped profile at least one of: bears against the battery module and lies opposite the battery module.

10: The lid according to claim 1, wherein the cover section comprises at least one positively engaging element which is complementary to a structure of the battery module, in particular in the form of a cutout, for at least one of: positioning the lid relative to the battery module and connecting the lid to the battery module in a positively engaging fashion.

11: The lid according to claim 1, wherein the cover section has two cutouts for poles of the battery module, wherein in the mounted state on the battery module the poles are at least one of: arranged in the cutouts and project through the cutouts and are, in particular, in positively engagement therewith.

12: A battery module arrangement, in particular for an electric vehicle, having at least one battery module and one lid, wherein the lid is configured to be attached on a pole side to the battery module.

13: A battery, comprising at least two battery module arrangements, wherein at least one of the at least two battery module arrangements comprise at least one battery module and one lid, wherein the lid is configured to be attached on a pole side to the battery module, wherein the at least two battery module arrangements are connected to one another via tabs, lying opposite one another, of the lids of the battery module arrangements.

14: The battery according to claim 13, wherein the tabs, lying opposite one another, of the respective lids bear one on the other and are connected to one another in at least one of: a frictionally engaging and a materially joined fashion, in particular by means of semi-tubular punch rivets.

15: The lid according to claim 4, wherein the through-opening is at least one of: a drilled through-hole, an elongate hole, a punched-out portion, and a polygonally formed opening.

16: The lid according to claim 5, wherein the tabs extend along at least 50% of the longitudinal side of at least one of: the lid and the battery module.

17: The lid according to claim 5, wherein the tabs extend along 90% of the longitudinal side of at least one of: the lid and the battery module.

18: The lid according to claim 6, wherein the tabs have a flange for connecting to at least one of: a battery component and a further flange of an adjacent battery module, wherein the flange is formed bent outward with respect to the plane of the tab.

19: The lid according to claim 1, wherein the battery module is configured to be used in an electric vehicle.

20: The battery according to claim 13, wherein the battery is configured to be used in an electric vehicle.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0041] Preferred further embodiments of the invention are explained in more detail by means of the following description of the figures. In the figures, in each case in a schematic fashion:

[0042] FIG. 1 shows a battery module arrangement with a battery module and a lid which is attached thereto on the pole side,

[0043] FIG. 2 shows the lid, shown in FIG. 1, in a state which is detached from the battery module; and

[0044] FIG. 3 shows two battery module arrangements which are connected to one another.

DETAILED DESCRIPTION OF PREFERRED EXEMPLARY EMBODIMENTS

[0045] In the text which follows, preferred exemplary embodiments are described with reference to the figures. In this context, identical, similar or identically acting elements are provided with identical reference numbers in the different figures, and to a certain extent a repeated description of these elements is dispensed with in order to avoid redundancy.

[0046] FIG. 1 shows a battery module arrangement 10 for use in a battery of an electric vehicle. The battery module arrangement 10 comprises a battery module 12 and a lid 14 which is attached thereto on the pole side. The battery module 12 comprises a plurality of interconnected battery cells which can be connected in an electrically conductive fashion to a consumer via poles which are not shown here. The battery cells are arranged in a battery module housing 16 which the lid 14 covers on the pole side.

[0047] FIG. 2 shows the lid 14 for the battery module 12 in a state in which it is released from the battery module 12. The lid 14 comprises a cover section 18 for the pole-side attachment of the lid 14 to the battery module 12, and tabs 20 which are provided at opposite ends of the cover section 18, arranged inclined relative to the cover section 18, and in the state in which the lid 14 is installed on the battery module 12 they extend from the cover section 18 in a direction pointing away from the battery module 12.

[0048] The lid 12 is produced from an electrically insulating material, for example from a plastic. The tabs 20 extend along a longitudinal side and along a longitudinal direction X of the lid 14 and of the battery module 12. To be more precise, the tabs extend along substantially 90% of the length of the longitudinal side of the lid 14 and of the battery module 12. The lid 14 extends along a transverse direction Y of the lid 14 and of the battery module 12, which is perpendicular to the longitudinal direction X and a vertical direction Z, such that the tabs 20 project over the battery module 12 along the transverse direction Y on opposite sides of the lid 14. Correspondingly, a width of the lid 14 along the transverse direction Y is greater than a width of the battery module 12. Alternatively, the width of the lid 14 can substantially correspond to the width of the battery module 12 or be smaller than it.

[0049] The tabs 20 are inclined, in particular bent, about 90° relative to the cover section 18. Correspondingly, the lid 14 has a U-shaped profile in cross section, wherein the cover section 14 form a web, and the adjoining tabs 20 form limbs of the U-shaped profile, and wherein in the state in which the lid 14 is mounted on the battery module 12 the outer side of the web of the U-shaped profile bears against the battery module 12.

[0050] The cover section 18 comprises two positively engaging elements in the form of cutouts 22 which are complementary to a structure of the battery module 12 and have the purpose of positioning the lid 14 relative to the battery module 12 and of connecting the lid 14 in a positively engaging fashion to the battery module 12. To be more precise, the cutouts 22 are embodied in such a way that in the state in which the lid 14 is mounted on the battery module 12 they are positioned in these connecting elements (respectively not shown here) for connecting the poles of the battery module 12 in an electrically conductive fashion to a high voltage cable. The shape of the cutouts 22 is made complementary to an outer contour of the connecting elements. In this way, in a mounted state in the battery module 12 the connecting elements are in positively locking engagement with the lid 14. To be more precise, the cutouts 22 have a cross section in the form of a regular hexagon.

[0051] The cover section 18 is embodied in the form of a plate and has a shape which is complementary to that side of the battery module 12 which has the poles. In the region of its corners, the plate-shaped cover section 18 is provided with four first drilled through-holes 24 into which screws or other connecting means can be introduced in order to connect the lid 14 in a frictionally engaging fashion to the battery module 12.

[0052] Instead of the drilled through-holes 24 which are present with a round cross section, through-openings which are shaped differently can also be provided, said through-openings being able to be embodied, for example, as an elongate hole or as punched-out portion or as a polygonally formed opening, for example in the form of a rectangular or square or polygonal punched-out portion.

[0053] As is shown by FIGS. 1 and 2, the tabs 20 are provided with in each case two second drilled through-holes 26 which provide a mechanical gripping facility for more easily lifting up and moving the battery module arrangement 10. To be more precise, the second drilled through-holes 26 are configured to move into positively locking engagement with a mounting tool, in order to connect the mounting tool in a detachable fashion to the battery module arrangement 10. In other words, the second drilled through-holes 26 form connecting elements which are complementary to the mounting tool and are configured to mechanically connect the lid 14 in a detachable fashion to the mounting tool.

[0054] In addition, one of two tabs 20 of the lid 14 is provided with two recesses 28 at its upper ends, said recesses each forming a connecting point for a connecting element in the form of an edge clip, in order to secure cables or cable harnesses reliably in terms of process to the lid 14.

[0055] In the embodiment shown here, the tabs 20 each form a flange for attaching the lid 14 onto a carrier structure of a battery and/or to a further lid 14 of a further battery module 12. In other words, the tabs 20, embodied as a flange, of the lid 14 serve to secure and hold the battery module 12, coupled to the lid 14, within the battery. Correspondingly, the lid 14 forms part of a supporting structure within the battery.

[0056] FIG. 3 shows two battery module arrangements 10 which are shown in FIGS. 1 and 2 and which are arranged one next to the other along the transverse direction Y and are connected to one another in a frictionally engaging fashion by means of tabs 20 which bear on one another. In order to connect the battery module arrangements 10 in a frictionally engaging fashion, the tabs 20 which bear one on the other are connected to one another by means of semi-tubular punch rivets (not shown here). In this context, the two drilled through-holes 26 of the tabs 20 which are connected to one another are oriented relative to one another.

[0057] Insofar as applicable, all the individual features which are elucidated in the exemplary embodiments can be combined and/or interchanged with one another without departing from the scope of the invention.

LIST OF REFERENCE NUMBERS

[0058] 10 battery module arrangement [0059] 12 battery module [0060] 14 lid [0061] 16 battery module housing [0062] 18 cover section [0063] 20 tabs [0064] 22 cutout [0065] 24 first drilled through-hole [0066] 26 second drilled through-hole [0067] 28 recess