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Battery system for vehicle, comprising slopes for distributing cooling water

A battery system, slope technology, applied in the field of hybrid or electric vehicles, to avoid hot spots and fire recurrence

Active Publication Date: 2017-05-31
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, even if these different systems were able to access the battery compartment with cooling water flow, the different systems could leave some hotter areas that have the potential to start new fires depending on the flow potential in the compartment. point of risk

Method used

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  • Battery system for vehicle, comprising slopes for distributing cooling water
  • Battery system for vehicle, comprising slopes for distributing cooling water
  • Battery system for vehicle, comprising slopes for distributing cooling water

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Embodiment Construction

[0032] figure 1 and figure 2 A battery system 12 is shown, said battery system forming a substantially parallelepipedal assembly fixed horizontally under the rear floor 2 of the vehicle, said battery system comprising Electrochemical unit 22 in. The closed compartment 20 is able to protect the unit 22 and its electrical contacts, in particular from external splashes of water or dust or external air, to ensure the integrity and safety of the unit and its electrical contacts.

[0033] The rear floor 2 comprises a forwardly facing cross member 4 and a rearwardly facing flange 6 of the floor, said cross member and said flange forming a reinforcement which surrounds a battery system 12 located below. The floor is also reinforced by two longitudinal stiffeners 8 fixed below and above the battery system 12 .

[0034] The reinforcements 4, 8 surrounding the battery system 12 have a large mass and constitute rigid parts capable of fixing the system while resisting durability constr...

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Abstract

The invention relates to a battery system for a hybrid or electric vehicle, comprising electrochemical cells (22) arranged in a closed compartment (20), said system being designed so as to receive a flow of water from an external supply point (10) in order to cool the cells in the event of heating or fire, characterized in that it comprises slopes (24) situated above the compartment, which ensure the distribution of the water from the supply point (10) to all of the cells (22).

Description

technical field [0001] The invention relates to a battery system arranged to make fighting fires easier, and to a hybrid or electric motor vehicle equipped with such a battery system. Background technique [0002] A hybrid or electric vehicle comprises an energy accumulator for propulsion comprising an electrochemical unit delivering a relatively high voltage, which is also referred to below as a battery and which can be powered according to various known technologies implement. [0003] The battery is capable of recovering energy generated when the vehicle brakes to send current to the drive motor. On some vehicles, the battery can also be charged directly from an external power distribution network. [0004] Drive batteries arranged in closed compartments usually include a cooling system to ensure performance, longevity and safety. Especially Li-ion cells with high mass-dependent energy densities require special tracking of the Li-ion cell's operating conditions, such a...

Claims

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Application Information

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IPC IPC(8): H01M10/625H01M10/6567A62C3/07A62C3/16
CPCA62C3/07A62C3/16H01M10/625H01M10/6567H01M2200/00Y02E60/10
Inventor S·弗洛凯B·费里奥M·潘松W·德雅尔丹
Owner PEZHO SITROEN AUTOMOBILS SA
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