Battery module assembly and method for assembling the battery module assembly
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DEUTZ AG
- Filing Date
- 2025-11-16
- Publication Date
- 2026-06-09
Smart Images
Figure 2026094044000001_ABST
Abstract
Claims
1. A battery module assembly comprising: a first battery module (2) and a second battery module (3), each containing one or more battery cells; a battery monitoring unit (4); a retaining element (6) positioned between the first battery module (2) and the second battery module (3), having a receiving portion (7) on which the battery monitoring unit (4) is positioned; and a wiring plate (8) supported by shape fitting on the retaining element (6), having a guide (9) for holding the cable (10) of a low-voltage cable (11) for the battery monitoring unit (4).
2. The battery module assembly according to claim 1, characterized in that the retaining element (6) is positioned between the longitudinal side surface (LS2) of the first battery module (2) and the longitudinal side surface (LS3) of the second battery module (3), and the wiring plate (8) is positioned on an upper surface (OS2, OS3) that extends laterally with respect to at least one of the longitudinal side surfaces (LS2, LS3) of the battery modules (2, 3).
3. The battery module assembly according to claim 2, characterized in that at least one side element (31) is positioned on a side surface (QS2, QS3) that extends laterally with respect to at least one longitudinal side surface (LS2, LS3) and top surface (OS2, OS3) of the battery module (2, 3), and is supported by a retaining element (6) by shape fitting.
4. The battery module assembly according to claim 3, characterized in that at least one side element (31) has at least one receiving portion (40) on its outer surface (39) opposite to the retaining element (6) for inserting a busbar (41) for a high-voltage connection (42) between battery modules (2, 3).
5. The battery module assembly according to any one of claims 1 to 4, characterized in that the guides of the wiring plate (8) are each formed as grooves (9) of the wiring plate (8), a plurality of locking elements (21) are arranged along the grooves (9) at intervals from one another, and the cables (10) that protrude beyond the grooves (9) are held by shape fitting.
6. The battery module assembly according to any one of claims 1 to 5, characterized in that the wiring plate (8) has at least one recess (45) for receiving an electrical connector (13) of a low-voltage cable (11).
7. The battery module assembly according to any one of claims 1 to 6, characterized in that a wiring plate (8) is provided with holes (48) for securing cable ties.
8. The battery module assembly according to any one of claims 1 to 7, further comprising a third battery module equipped with a battery monitoring unit (4), wherein an additional retaining element (58) is positioned between the second battery module and the third battery module, and a wiring plate (8) is supported by both retaining elements (6, 58) in a shape-fitting manner.
9. The battery module assembly according to any one of claims 1 to 8, characterized in that the wiring plate (8) has a positioning element (53) in the edge region (52) for aligning the cable loop of the low-voltage cable (11) with an opening in a cover located above the wiring plate (8).
10. The battery module assembly according to any one of claims 1 to 9, characterized in that the first module level (M) includes battery modules (2, 3), retaining elements (6, 58), wiring plates (8) and / or side elements (31), and the second module level is positioned on the first module level (M).
11. The battery module assembly according to any one of claims 1 to 10, characterized in that the retaining elements (6, 58), the wiring plate (8), and / or the side element (31) are made of foamed plastic, in particular foamed polypropylene (EPP).
12. The assembly method for the battery module assembly includes the following steps: - The first battery module (2) and the second battery module (3) are mounted in series along the longitudinal axis (LW), and a gap (14) is formed between the first battery module (2) and the second battery module (3). - The battery monitoring unit (4) is fixed to the receiving portion (7) of the holding element (6), - Insert the retaining element (6) with the battery monitoring unit (4) attached into the gap (14) described above. - The wiring plate (8) is fixed to the retaining element (6) so that it is supported by a shape fit with the retaining element (6), - The cable (10) is held in place by the guide (9), and the cable (10) of the low-voltage cable system (11) for the battery monitoring unit (4) is secured to the guide (9) on the wiring plate (8).
13. The retaining element (6) is inserted between the longitudinal side surface (LS1) of the first battery module (2) and the longitudinal side surface (LS2) of the second battery module (3). The method according to 12, characterized in that a wiring plate (8) is placed on the upper side (63) that extends laterally with respect to the longitudinal side surface (LS1, LS2) of at least one of the battery modules (2, 3).
14. The method according to 12 or 13, characterized in that, before fixing the wiring plate (8), at least one side element (31) is positioned on a lateral side (64) that extends laterally to the longitudinal side (LS1, LS2) and upper side (63) of at least one battery module and is supported by shape fitting with the retaining element (6).
15. The method according to any one of claims 12 to 14, characterized in that, before fixing the side element (31), a busbar (41) for electrically connecting the battery modules (2, 3) is inserted into a receiving portion (40) of the side element (31) located on the outside (39) opposite to the retaining element (6).