BATTERY MODULE

Abstract

A battery module includes a housing element (2) made of a metallic material (3) and a lid element (4) made of a metal material (5), which are connected to one another while forming a common internal space (6) configured to accommodate a plurality of battery cells (7) by the formation of a plurality of plastic deformations (8) of the lid element (4) that are arranged so as to be spaced apart from one another, in such a way that an electrical contact is established between the housing element (2) and the lid element (4).

Claims

1. A battery module comprising: a housing element (2) made of a metallic material (3), and a lid element (4) made of a metal material (5), which are connected to one another while forming of a common internal space (6) configured so as to accommodate a plurality of battery cells (7) by the formation of a plurality of plastic deformations (8) of the lid element (4) that are spaced apart from one another, in such a way that an electrical contact is established between the housing element (2) and the lid element (4).

2. The battery module according to claim 1, wherein the lid element (4) comprises a recess (13) directly adjacent to a plastic deformation (8).

3. The battery module according to claim 1 wherein the housing element (2) comprises a circumferential rib (9), wherein the rib (9) is arranged so as to directly mechanically contact a plastic deformation (8).

4. The battery module according to claim 3, wherein the plurality of plastic deformations (8) are respectively arranged below the rib (9).

5. The battery module according to claim 1, wherein a sealing element (11) is further arranged between the housing element (2) and the lid element (4) in such a manner that the internal space (6) is closed against an environment (10) in a fluid-tight manner.

6. The battery module according to claim 4, wherein the lid element (4) or the housing element (2) forms the sealing element (11).

7. The battery module according to claim 1, wherein individual plastic deformations (8) are arranged so as to be spaced apart from one another and/or the housing element (2) of the battery module (1), and the lid element (4) are arranged so as to be spaced apart from one another in such a manner that an electromagnetic shielding of the internal space (6) against the environment (10) is formed.

8. The battery module according to claim 1, wherein the housing element (2) is configured as an aluminum die-cast housing (20).

9. The battery module according to claim 1, wherein the lid element (4) is formed as a deep-drawn part (40) made of an aluminum alloy.

10. The battery module according to claim 1, wherein the sealing element (11) is arranged on a beveled surface (12).

11. The battery module according to claim 10, wherein the sealing element (11) is arranged on the beveled surface (12) directly adjacent to a rib (9).

12. The battery module according to claim 1, wherein the metal material (3) of the housing element (2) is aluminum (30).

13. The battery module according to claim 1, wherein the metal material (5) of the lid element (4) is aluminum (50).

14. The battery module according to claim 1, wherein individual plastic deformations (8) are arranged so as to be spaced apart from one another and/or a rib (9) of the housing element (2) of the battery module (1), and the lid element (4) are arranged so as to be spaced apart from one another in such a manner that an electromagnetic shielding of the internal space (6) against the environment (10) is formed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Exemplary embodiments of the invention are illustrated in the drawings and explained in further detail in the following description.

[0027] The following are shown:

[0028] FIG. 1 in a perspective view, a cutout of an embodiment of a battery module according to the invention,

[0029] FIG. 2 a formation of a plastic deformation,

[0030] FIG. 3 in a sectional view, an embodiment of a battery module according to the invention, and

[0031] FIG. 4 in a sectional view, an embodiment of a battery module according to the invention.

DETAILED DESCRIPTION

[0032] In a perspective view, FIG. 1 shows a cutout of an embodiment of a battery module 1 according to the invention.

[0033] The battery module 1 comprises a housing element 2, which is formed from a metallic material 3, in particular aluminum 30. According to the embodiment shown in FIG. 1, the housing element 2 of the battery module 1 is preferably configured as an aluminum die-cast housing 20.

[0034] The battery module 1 further comprises a lid element, which is formed from a metallic material 5, in particular aluminum 50. According to the embodiment shown in FIG. 1, the lid element 4 is preferably configured as a deep-drawn part 40 made of an aluminum alloy.

[0035] The housing element 2 and the lid element 4 are connected to one another in the form of an internal space 6, which cannot be seen in FIG. 1. The internal space 6 is configured so as to accommodate a plurality of battery cells 7, which are also not visible in FIG. 1.

[0036] The connection of the housing element 2 and the lid element 4 is configured by means of a plurality of plastic deformations 8 of the lid element 4 that are arranged so as to be spaced apart from one another.

[0037] An electrical contact between the housing element 2 and the lid element 4 is thereby established.

[0038] Immediately adjacent to a plastic deformation 8, the lid element 4 comprises a recess 13. This provides the advantage that an easier deformation or reforming can be configured.

[0039] Furthermore, it can be seen that the housing element 2 comprises a circumferential rib 9, wherein the rib 9 is arranged in direct mechanical contact with a plastic deformation 8. A reliable mechanical and electrical connection can be established by the mechanical contact between the plastic deformation 8 and the rib 9.

[0040] The plurality of plastic deformations 8 is respectively arranged below the rib 9.

[0041] A sealing element 11 is further arranged between the housing element 2 and the lid element 4 such that the internal space 6 is sealed against an environment 10 in a fluid-tight manner.

[0042] In particular, individual plastic deformations 8 are arranged so as to be spaced apart from one another in such a manner that an electromagnetic shielding of the internal space 6 is formed against the environment 10.

[0043] Furthermore, the housing element 2 of the battery module 1, in particular the rib 9, as well as the lid element 4 are arranged so as to be spaced apart from one another in such a manner that an electromagnetic shielding of the internal space 6 is formed against the environment 10.

[0044] FIG. 2 shows a configuration of a plastic deformation 8.

[0045] The two left illustrations here show a state 80 before a plastic deformation 8, while the two right illustrations show a state after a plastic deformation 8.

[0046] Firstly, the housing element 2 and the lid element 4 can be seen. Furthermore, the recesses 13 can also be seen, which facilitate the deformation into a plastic deformation 8.

[0047] In particular, it is noted at this point that the internal space 6 can also be seen, in which a plurality of battery cells 7 are accommodated.

[0048] Furthermore, it can be seen in this case that two plastic deformations 8 are spaced apart from one another by a distance 25, such that an electromagnetic shielding of the internal space 6 is formed against the environment 10.

[0049] FIG. 3 shows an embodiment of a battery module 1 according to the invention in a sectional view.

[0050] In particular, it can be seen that the sealing element 11 is arranged between the lid element 4 and the housing element 2. In particular, the sealing element 11 is arranged between the lid element 4 and the rib 9 formed by the housing element 2.

[0051] Furthermore, it can be seen that a plastic deformation 8 is arranged below the rib 9. The plastic deformation 8 is furthermore arranged so as to be in direct mechanical contact with the rib 9.

[0052] A mechanical contact 26 is thereby formed.

[0053] Advantageously, a mechanical contact 28 is formed between the housing element 2 and the lid element 4, which comprises a so-called hard contact or stop.

[0054] By deformation of the sealing element 11 during manufacture and also over its lifetime, the sealing element 11 can form a return force 27, which results in the mechanical contact 26 formed between the plastic deformation 8 and the rib 9 being permanently and reliably established.

[0055] FIG. 4 shows an embodiment of a battery module 1 according to the invention in a sectional view.

[0056] The illustration of FIG. 4 corresponds to the illustration of FIG. 3. In addition, it can be seen here that, due to a protrusion 39 of the housing element 2 and in particular also the sealing element 11, the internal space 6 is sealed in a fluid-tight manner, in particular also against spray water 35 and jet water 36.

[0057] It can be seen that the sealing element 11 is arranged on a beveled surface 12. In particular, the beveled surface 12 is configured so as to be directly adjacent to the rib 9. In particular, the beveled surface 12 forms an angle to a horizontal during intended use of the battery module 1. A reliable drainage of a condensate 29 can thereby be achieved. In particular, this can prevent condensate 29 from remaining permanently on a sealing surface, and in particular the sealing element 11.

[0058] Further, the sealing element 11 and the protrusion 39 are arranged so as to be spaced apart from the recesses 13 so that spray water 35 and jet water 36 cannot directly hit and damage the sealing surface, and in particular the sealing element 11.

[0059] In addition, the lid element 4 and the housing element 2 are spaced apart in a lateral region of the battery module 1 by a distance 37 in such a way that capillary effects are avoided and condensate 29 can reliably drain off.