DRIVE BATTERY

Abstract

A drive battery for a vehicle, in particular a motor vehicle, includes a housing, which has a plurality of partial regions, wherein one or more cell modules are respectively arranged in a first partial region and in a second partial region. A composite component is arranged between the first partial region and the second partial region in order to separate the partial regions. The composite component has a profile element of fiber-reinforced plastic, a foam body of a compressible foam and/or a silicone mat.

Claims

1. A drive battery for a motor vehicle, said drive battery comprising: a housing having a plurality of partial regions, one or more cell modules respectively arranged in a first partial region and in a second partial region of said plurality of partial regions, a composite component arranged between the first partial region and the second partial region in order to separate the first and second partial regions, wherein the composite component includes (i) a profile element of fiber-reinforced plastic, (ii) a foam body of a compressible foam, and/or (iii) a silicone mat.

2. The drive battery as claimed in claim 1, further comprising a frame element arranged between the first and second partial regions, wherein the composite component includes the profile element, and wherein the profile element extends in a manner adjoining the frame element in a longitudinal direction and is clipped to the frame element.

3. The drive battery as claimed in claim 1, wherein the composite component includes the profile element, and the profile element is formed from glass-fiber reinforced plastic.

4. The drive battery as claimed in claim 1, wherein the composite component includes the foam body and the profile element, and wherein the foam body extends in a manner adjoining the profile element in a longitudinal direction and is fastened to the profile element.

5. The drive battery as claimed in claim 4, wherein the foam body is adhesively bonded to the profile element.

6. The drive battery as claimed in claim 1, wherein the housing includes a cover, the composite component includes the foam body and the profile element, and wherein the foam body is arranged between the profile element and the cover and is formed in such a way that the foam body is compressed by the cover.

7. The drive battery as claimed in claim 1, wherein the composite component includes the foam body and the silicone mat, and the silicone mat is fastened to the foam body and, proceeding from the foam body, extends across the one or more cell modules.

8. The drive battery as claimed in claim 7, wherein the silicone mat is adhesively bonded to the foam body.

9. The drive battery as claimed in claim 1, wherein the composite component comprises (i) the profile element of fiber-reinforced plastic, (ii) the foam body of compressible foam, and (iii) the silicone mat.

10. A motor vehicle comprising the drive battery as claimed in claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Further advantageous refinements emerge from the following description and the drawing. In the drawing:

[0024] FIG. 1 schematically shows a longitudinal section through a drive battery; and

[0025] FIG. 2 schematically shows a cross section through the drive battery.

DETAILED DESCRIPTION OF THE INVENTION

[0026] FIG. 1 schematically illustrates a longitudinal section through a drive battery 100.

[0027] The drive battery 100 has a housing 102, of which a frame 104 and casing elements in the form of a battery base (not shown) and a battery cover (106) are part (cf. FIG. 2). The frame 104 has three frame beams 110, 112, 114 oriented in a longitudinal direction 108 (longitudinal beams) and two frame beams 118, 120 oriented in a transverse direction 116 (transverse beams) (cf. FIG. 1). The frame beams 110, 112, 114 are connected at a respective end to the frame beams 118, 120.

[0028] The drive battery 100 has a first partial region 122 and a second partial region 124, wherein a plurality of cell modules 126, in the example four respective cell modules 126, are arranged in each of the partial regions 122, 124 (cf. FIG. 1). The cell modules 126 are electrically connected to one another via electrical lines 128. In the example, the cell modules 126 are connected in terms of flow to a cooling channel 132 (in the form of a liquid cooling system in the example) that carries a cooling medium 130. The cooling channel 132 may be integrated in the frame beam 112, for example.

[0029] The drive battery 100 may have a connecting region 134, in which electrical connections and/or cooling connections are arranged (not shown). The electrical lines 128 may be connected to the electrical connections. The cooling channel 132 may be connected to the cooling connections.

[0030] A composite component 140 is arranged between the first partial region 122 and the second partial region 124 in order to separate the partial regions 122, 124 (only shown in FIG. 2). The composite component 140 has a profile element 142 of fiber-reinforced plastic, a foam body 144 of a compressible foam and a silicone mat 146.

[0031] The composite component 140 extends along the intermediate space 136 between the partial regions 122, 124 of the drive battery 100 through the interior space of the housing 102. The composite component 140 is matched to the interior space of the housing 102 of the drive battery 100 in terms of its dimensioning.

[0032] As already specified, a frame element in the form of a frame beam 112 is arranged between the two partial regions 122, 124, wherein the profile element 142 extends in a manner adjoining the frame element 112 in the longitudinal direction 108 and is clipped to the frame element 112 by means of clips 148 (cf. FIG. 2).

[0033] The frame element 112, the profile element 142 and the foam body 144 form a wall or barrier between the two partial regions 122, 124 of the drive battery 100.

[0034] The profile element 142 is formed from glass-fiber reinforced plastic, wherein the proportion of glass fibers can amount to at least 30 percent. The profile element 142 is formed in such a way that it is heat-resistant, in particular up to a temperature of 1000° C. (degrees Celsius). In the example, the profile element 142 is in the form of a hollow profile with a rectangular cross section.

[0035] The foam body 144 extends in a manner adjoining the profile element 142 in the longitudinal direction 108 and is fastened to the profile element 142. The foam body 144 is matched to the interior space of the housing 102 of the drive battery 100 in terms of its dimensioning. The foam body 144 may correspond to the frame element 112 in terms of its length. In the example, the foam body 144 is adhesively bonded to the profile element 142.

[0036] As already specified, the housing 102 has a cover or battery cover 106 (cf. FIG. 2), wherein the foam body 144 is arranged between the profile element 142 and the battery cover 106 and is formed in such a way that the foam body 144 is compressed by the cover 106. In other words, the foam body 144 is compressed between the profile element 106 and the cover 106 when the cover 106 is placed onto the battery housing 102.

[0037] The silicone mat 146 is fastened to the foam body 144 and, proceeding from the foam body 144, extends across the cell modules 126 to some extent (cf. FIG. 2). The silicone mat 146 extends along (for example parallel to) the surface of the cell modules 126 and/or the cover or battery cover 106. In the example, the silicone mat 146 is beveled at the free end 150 (silicone mat 146 tapers away from the cover or battery cover 106). In the example, the silicone mat 146 is adhesively bonded to the foam body 144.