Battery and system comprising battery and vehicle body

Abstract

A battery for an electrically operated vehicle, comprising a housing cover (1) arranged above the battery cell (3), a substructure (2) arranged below the battery cell (3) and comprising longitudinal struts (4), transverse struts (5) and diagonal struts (6), the substructure (2) can be connected to the vehicle body (7) in such a way that a part of the load is distributed in a targeted manner into the struts of the substructure (2) in order to absorb and distribute the load in the longitudinal direction and in the diagonal direction and in the transverse direction.

Description

Technical Field

[0001] The utility model relates to a battery used for an electric vehicle. Background Art

[0002] A battery having a recess with reinforcing pillars is known from DE 10 2016 121 247. The recess comprises reinforcing pillars in the lateral direction. The battery interior space of the battery is divided by structural elements. Utility Model Content

[0003] The device according to the invention comprises a battery for an electrically operated vehicle, the battery comprising a housing cover, a substructure and a battery cell, wherein

[0004] -The housing cover is arranged above the battery cell,

[0005] - a substructure is arranged below the battery cells and comprises longitudinal struts, transverse struts and diagonal struts in order to absorb and distribute loads in the longitudinal, diagonal and transverse directions,

[0006] The substructure can be connected to the vehicle body in such a way that part of the load is distributed in a targeted manner to the struts of the substructure.

[0007] According to the configuration of the invention with the substructure and the battery cells, loads acting on the battery can be dissipated and absorbed by interaction with the vehicle body. This makes it possible to distribute the loads between the upper load path, which is mainly located in the vehicle body, and the lower load path, which is located in the battery substructure, thereby making it possible to design the battery interior substantially without structural elements, since substantially no forces flow through the battery interior.

[0008] Preferably, the housing cover is designed in such a way that a part of the load is distributed in a targeted manner in the housing cover. This makes it possible to distribute the load additionally to the housing cover.

[0009] Preferably, the housing cover comprises longitudinal struts and transverse struts, wherein the longitudinal structure or the transverse structure is designed to absorb and distribute loads in the longitudinal direction, the diagonal direction and the transverse direction. This makes it possible to absorb and distribute loads in different directions, so that essentially no loads are absorbed by the battery cells.

[0010] Preferably, the housing cover comprises side edges, wherein the side edges are arranged laterally around the battery cells, extend at the height of the battery cells and are formed for sealing the connection to the substructure. The side edges can achieve sealing of the battery in order to protect it from the ingress of external elements such as water and dust, and can achieve additional structural reinforcement of the battery and thereby achieve improved protection of the battery cells.

[0011] Preferably, the substructure is geometrically flat with a constant cross-sectional height. By reducing the connection points and the constant height in the substructure, this can achieve a reduction in structural weak points and thereby a more stable substructure.

[0012] Preferably, the battery additionally comprises a corrugation zone, which is arranged on the longitudinal sides of the substructure and is designed to absorb loads by deformation. This allows for an additional protection of the battery cells, which is directly integrated into the substructure or connected to it.

[0013] Preferably, the crumple zone includes the region from the longitudinal sides of the substructure to the outer edge of the vehicle body of the vehicle. This makes it possible to absorb loads over a large surface area of ​​the crumple zone.

[0014] Preferably, the battery additionally comprises an inner bottom, wherein the inner bottom comprises the upper side of the lower structure. This allows the battery cells to be fixed and the thermal management system to be integrated in the battery interior.

[0015] Preferably, the substructure and the housing cover consist of hot-formed sheet metal. Hot forming allows a high degree of deep drawing of the sheet metal, whereby the production of the geometric shapes of the substructure and the housing cover is possible.

[0016] In a further preferred embodiment, the substructure and the housing cover comprise cast elements and / or foam-filled composite components and / or stamped sheet metal parts and / or welded extruded components.

[0017] The dependent claims describe further advantageous embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] A preferred embodiment is explained in detail based on the following drawings. It is shown here:

[0019] Figure 1 FIG. 1 is an exploded view showing a first embodiment of a battery according to the present invention.

[0020] Figure 2 showing an isometric view of a first embodiment,

[0021] Figure 3 FIG. 1 shows a cross section of a first embodiment of a battery according to the present invention,

[0022] Figure 4 An isometric view showing a second embodiment, and

[0023] Figure 5 A cross section of a second embodiment of a battery according to the present invention is shown. DETAILED DESCRIPTION

[0024] Figure 1 , Figure 2 and Figure 3 A first embodiment of a battery for an electric vehicle according to the utility model is shown. The battery comprises a housing cover 1, a substructure 2 and a battery cell 3. The housing cover 1 is arranged above the battery cell 3. The housing cover 1 is configured to absorb loads. The substructure 2 is arranged below the battery cell 3. The substructure 2 comprises longitudinal struts 4, transverse struts 5 and diagonal struts 6. The struts are configured to absorb and distribute loads in the longitudinal direction, the diagonal direction and the transverse direction. The substructure 2 can be connected to the vehicle body 7 so that a part of the load is distributed in a targeted manner to the struts 4, 5, 6 of the substructure 2. The housing cover 1 is configured so that a part of the load is distributed in a targeted manner to the housing cover 1. The connection is formed by a bolt connection 11 between the vehicle body 7 and the side frame 12 of the substructure 2 and the struts 4, 5, 6. The housing cover 1 comprises longitudinal struts 4, transverse struts 5 and diagonal struts 6. The longitudinal struts 4 and the transverse struts 5 are designed to absorb and distribute loads in the longitudinal direction, the diagonal direction and the transverse direction. The housing cover 1 comprises a side edge 8. The side edge 8 is arranged around the battery cell 3 in the lateral direction and is designed for sealing the connection with the substructure 2. The housing cover 1 extends at the height of the battery cell 3. The substructure 2 is designed to be flat in geometry with a constant cross-sectional height. The battery comprises an inner bottom 10. The inner bottom 10 comprises the upper side of the substructure 2. The cells are fastened to the inner bottom by means of adhesive and screws. The substructure 2 and the housing cover 1 comprise thermoformed components.

[0025] Figure 3 A system consisting of a battery and a vehicle body 7 is shown. The loads acting on the battery are distributed to the substructure 2 and the housing cover 1. The loads are essentially absorbed by the substructure 2 and the housing cover 1. Connecting elements 13 with bolts 11 are arranged at some locations between the housing cover 1 and the substructure 2. The connecting elements ensure the stability of the basic structure, thereby minimizing the oscillations (Aufschwingen) or bending of the substructure 2 or the housing cover 1. In addition, the connecting element 13 is designed to ensure a defined spacing of 100 mm between the housing cover 1 and the substructure 2. In addition, the connecting element 13 assists in mounting the housing cover 1 on the substructure 2. A lower bottom protection portion 14 is arranged below the battery. The lower bottom protection portion 14 includes the lower side of the substructure 2.

[0026] Figure 4 and Figure 5A second embodiment of a battery according to the invention is shown. Compared to the first embodiment, the battery additionally comprises a corrugation zone 9. The corrugation zone 9 is arranged at the longitudinal side of the substructure 2 and is designed to absorb loads. The corrugation zone 9 includes an area from the longitudinal side of the battery to the outer edge of the vehicle body 7. The height of the corrugation zone 9 is the height of the substructure 2. The corrugation zone 9 includes thermoformed components connected to each other. All other features of the second embodiment correspond to the features of the first embodiment.

Claims

1. A battery for an electrically operated vehicle, the battery comprising a housing cover (1), a substructure (2) and a battery cell (3), wherein - the housing cover (1) is arranged above the battery cell (3), The substructure (2) is arranged below the battery cells (3) and comprises longitudinal struts (4), transverse struts (5) and diagonal struts (6) in order to absorb and distribute loads in the longitudinal, diagonal and transverse directions, The substructure (2) can be connected to the vehicle body (7) in such a way that a portion of the load is distributed in a targeted manner to the struts of the substructure (2). 2 . The battery according to claim 1 , wherein the housing cover ( 1 ) is designed in such a way that a portion of the load is distributed in a targeted manner in the housing cover ( 1 ).

3. A battery according to claim 1 or 2, wherein the housing cover (1) comprises longitudinal struts (4), transverse struts (5) and diagonal struts (6) for absorbing the load, wherein the longitudinal struts (4) or the transverse struts (5) are configured to absorb and distribute the load in the longitudinal direction, the diagonal direction and the transverse direction.

4. A battery according to claim 1 or 2, wherein the housing cover (1) comprises a side edge (8), and the side edge (8) is arranged laterally around the battery cell (3), extends at the height of the battery cell (3) and is configured to seal the connection with the lower structure (2). 5 . The battery according to claim 1 , wherein the substructure ( 2 ) is geometrically flat with a constant cross-sectional height.

6. The battery according to claim 1 or 2, wherein the battery additionally comprises corrugation zones (9) which are arranged at the longitudinal sides of the substructure (2) and are designed to absorb loads.

7. The battery according to claim 6, wherein the corrugation zone (9) comprises an area from a longitudinal side of the battery to an outer edge of a vehicle body (7) of the vehicle.

8. The battery according to claim 1 or 2, wherein the battery additionally comprises an inner bottom (10), wherein the inner bottom (10) comprises the upper side of the lower structure (2).

9. The battery according to claim 6, wherein the substructure (2), the housing cover (1), the corrugation zone (9) and / or the housing cover (1) comprise stamped sheet metal, welded extruded components, cast elements and / or foam-filled composite components.

10. A system consisting of a battery according to any one of claims 1 to 8 and a vehicle body, wherein the battery is connected to the vehicle body so that the load acting on the battery is distributed to the lower structure (2) and the shell cover (1) and is substantially absorbed by the lower structure (2) and the shell cover (1).

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