ELECTRIC OR HYBRID MOTOR VEHICLE WITH A BATTERY INCLUDING AN INTERCONNECTION BAR

Abstract

The invention relates to an electric or hybrid motor vehicle comprising a battery comprising modules (1), said vehicle comprising an interconnecting bar configured to electrically connect said modules (1), characterized in that said interconnecting bar comprises a body (2) and at least one end shape, said end shape projecting towards said module (1). Preferably, the end shape comprises a first portion having a first axis (A) and a second portion having a second axis (B), the first axis (A) and the second axis (B) forming an angle between 90° and 180°. Figure 1

Description

Title of the invention: ELECTRIC OR HYBRID MOTOR VEHICLE COMPRISING A BATTERY INCLUDING AN INTERCONNECTION BAR

[0001] The invention relates to interconnection bars enabling the electrical connection of the modules of a battery of an electric or hybrid motor vehicle.

[0002] Prior art is known utility certificate CN206422136U, which describes a battery assembly comprising at least two modules. The two modules are positioned side by side. The two modules are electrically connected by a conductive connector. The conductive connector has a three-dimensional structure comprising folded portions that adapt to variations in position and vibrations of the two battery modules.The conductive connector comprises a first connecting portion linking the output terminal of one of the two adjacent parallel battery modules, a first extended portion bent downwards from the first connecting portion between the two modules, a second connecting portion linking the output terminal of the other adjacent parallel battery module, and a second extended portion bent downwards so that its inner surface faces the outer surface of the other battery module adjacent to the space, with the planes where the extended portions intersect. However, a drawback remains. The second connecting portion of the conductive connector is positioned in front of the modules. When an impact occurs towards the module, the conductive connector is the first to be struck. Consequently, the second connecting portion deforms and enters the module, damaging it.

[0003] The objective of the present invention is to remedy these drawbacks and to avoid the deformation of the interconnecting bar, or conductive connector, during a side impact.

[0004] To achieve this objective, the invention proposes an electric or hybrid motor vehicle comprising a front axle and a rear axle whose points of contact with the ground define a base plane defined by a first longitudinal direction corresponding to straight-line driving, by a second transverse direction orthogonal to the first longitudinal direction, and a third vertical direction orthogonal to the first and second directions and oriented away from the ground, said vehicle comprising a battery comprising modules, said modules being electrically connected via an interconnecting bar, notable in that said interconnecting bar comprises a body extending longitudinally along the first direction and at least one end shape, said end shape projecting towards said module.

[0005] Thanks to the invention, the risks of deterioration of the battery and the electrical elements attached to it are reduced.

[0006] Advantageously, said end shape comprises a first portion having a first axis and a second portion having a second axis, the first axis and the second axis forming an angle between 90° and 180°.

[0007] Preferably, the first axis and the second axis form an angle between 110° and 150°.

[0008] Alternatively, said end shape has a curved shape.

[0009] Preferably, said end shape has an arc-shaped ellipse or circle.

[0010] This configuration reduces the risk of deformation of the interconnecting bar during a lateral impact.

[0011] Preferably, said end shape comprises a first part and a second part, the first part being in contact with said battery module, said second part being substantially perpendicular to said first part along the third direction.

[0012] Advantageously, said interconnecting bar has a thickness of less than 1 cm.

[0013] Such a thickness allows for easy arrangement of the interconnecting bar in said vehicle.

[0014] Preferably, said body has a flat shape.

[0015] Preferably, the second part has a perpendicular planar shape.

[0016] Advantageously, said battery comprises a base plate on which said modules rest, said base plate having a longitudinal reinforcing rib, said reinforcing rib being positioned opposite the modules, said body being positioned between said modules and said reinforcing rib.

[0017] The reinforcing rib absorbs the shock in order to reduce the risk of deformation of said interconnecting bar.

[0018] The invention will be further detailed by the description of a non-limiting embodiment, and on the basis of the attached figure illustrating the invention, in which [Fig.1] schematically illustrates a partial view of a battery of an electric or hybrid motor vehicle according to an embodiment of the invention.

[0019] Figure 1 schematically illustrates a partial view of a battery of an electric or hybrid motor vehicle according to one embodiment of the invention. The vehicle comprises a front axle and a rear axle whose points of contact with the ground define a basic plane XY defined by a first The vehicle is divided into two longitudinal directions: X, corresponding to straight-line travel; Y, transverse and orthogonal to the first longitudinal direction X; and Z, vertical and orthogonal to both the first X and second Y directions, oriented away from the ground. The battery comprises a plurality of modules 1 and an interconnecting busbar configured to electrically connect these modules 1. Preferably, the interconnecting busbar is positioned to the right and rear of the vehicle, respectively along the second Y and first X directions, as these are areas of frequent impact. In the event of a traffic accident, it is essential to protect the battery and its associated electrical components to prevent damage.Indeed, if the battery or its associated electrical components are damaged, there is a risk of overheating or even fire. The rear right side of the vehicle is the most likely to be damaged in a traffic accident; therefore, it is necessary to minimize the risk of damage to the interconnecting bar in this area. The interconnecting bar has a body 2 extending longitudinally along the first direction X. Furthermore, the interconnecting bar has at least one end shape. Preferably, this end shape comprises a first portion 3 and a second portion 4 as illustrated in [Fig. 1]. Optionally, the first portion 3 has a planar shape along the XY base plane. The first portion 3 is preferably in contact with the battery module 1. In [Fig. 1], the body 2 and the first portion 3 are parallel to each other along the first X direction. The second portion 4 is substantially perpendicular to the first portion 3 along the third Z direction. Preferably, the second portion 4 has a planar shape. The end shape comprises a first portion and a second portion. The first portion has a first axis A. The second portion has a second axis B. The end shape projects towards the module 1.Preferably, the first axis A and the second axis B form an angle between 90° and 180°, and more preferably between 110° and 150°. In another embodiment, the end shape is curved, or even an elliptical or circular arc shape. Thus, in the event of a lateral impact along the second direction Y during a traffic accident, the risk of deformation of said interconnecting bar is reduced. Consequently, the risk of damage to said battery and the electrical components attached to it is also reduced. Optionally, said interconnecting bar has a thickness of less than 1 cm. This allows for easy installation of said interconnecting bar in said vehicle, without interfering with the connection of other electrical components to said battery. Optionally, the body 2 has a flat shape as illustrated in [Fig. 1]. In the event of an impact. In a traffic accident, the body 2 is the part of the interconnecting bar most likely to receive the impact. This configuration therefore reduces the risk of impact. Preferably, as illustrated in [Fig. 1], the vehicle has a base plate 5 on which the modules 1 of the battery rest. The base plate 5 has a longitudinal reinforcing rib 6 along the first direction X, positioned opposite the modules 1. The body 2 of the interconnecting bar is then positioned between the modules 1 and the reinforcing rib 6 along the second direction Y.

Claims

Demands

1. Electric or hybrid motor vehicle comprising a front running gear and a rear running gear whose points of contact with the ground define a base plane (XY) defined by a first longitudinal direction (X) corresponding to straight-line driving, by a second transverse direction (Y) orthogonal to the first longitudinal direction (X) and a third vertical direction (Z) orthogonal to the first direction (X) and to the second direction (Y) and is oriented away from the ground, said vehicle comprising a battery comprising modules (1), said modules (1) being electrically connected via an interconnecting bar, characterized in that said interconnecting bar comprises a body (2) extending longitudinally along the first direction (X) and at least one end shape, said end shape projecting towards said module (1).

2. Vehicle according to claim 1 characterized in that said end shape comprises a first portion having a first axis (A) and a second portion having a second axis (B), the first axis (A) and the second axis (B) forming an angle between 90° and 180°.

3. Vehicle according to claim 2 characterized in that the first axis (A) and the second axis (B) form an angle between 110° and 150°.

4. Vehicle according to claim 1 characterized in that said end shape has a curved shape.

5. Vehicle according to claim 4 characterized in that said end shape has an arc-shaped ellipse or circle.

6. Vehicle according to any one of claims 1 to 5 characterized in that said end shape comprises a first part (3) and a second part (4), the first part (3) being in contact with said battery module (1), said second part (4) being substantially perpendicular to said first part (3) along the third direction (Z).

7. Vehicle according to any one of claims 1 to 6 characterized in that said interconnecting bar has a thickness of less than 1 cm.

8. Vehicle according to any one of claims 1 to 7 characterized in that said body (2) has a flat shape.

9. Vehicle according to any one of claims 1 to 8 in combination with claim 6 characterized in that the second part (4) has a planar shape.

10. Vehicle according to any one of claims 1 to 9 characterized in that said battery comprises a base plate (5) on which said modules (1) rest, said base plate (5) having a longitudinal reinforcing rib (6) along the first direction (X), said reinforcing rib (6) being positioned opposite the modules (1), said body (2) being positioned between said modules (1) and said reinforcing rib (6).

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