Thermal runaway protection device, power supply device and thermal runaway protection method
A protection device and thermal runaway technology, applied in battery/fuel cell control devices, electrical devices, electric vehicles, etc., can solve problems such as unfavorable power battery safety applications, and achieve the effect of preventing thermal runaway and improving safety.
Inactive Publication Date: 2019-09-06
HUATING HEFEI POWER TECH
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Problems solved by technology
[0003] The power battery of traditional electric vehicles has no corresponding measures to prevent this phenomenon, which is not conducive to the safe application of power batteries
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[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0038] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art witho...
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The embodiment of the invention provides a thermal runaway protection device, a power supply device and a thermal runaway protection method. The thermal runaway protection device, the power supply device and the thermal runaway protection method are used for preventing thermal runaway of a battery pack. The battery pack is used for supplying power to an external load; and the thermal runaway protection device comprises a battery management system and a control switch. One end of the control switch is connected to the battery pack after being connected to the battery management system; and theother end of the control switch is connected with the battery pack. When detecting spray explosion of the battery pack, the battery management system controls the control switch to be closed so that the battery pack, the battery management system and the control switch form a closed loop; and therefore, each single battery included by the battery pack is disconnected to stop supplying power to theexternal load. Through the design, each single battery included by the battery pack can be immediately disconnected to prevent the battery pack from generating the thermal runaway phenomenon when thebattery pack generates spray explosion; and therefore, the safety of the battery pack is enhanced.
Description
technical field [0001] The present application relates to the technical field of new energy batteries, in particular, to a thermal runaway protection device, a power supply device and a thermal runaway protection method. Background technique [0002] The power battery is the energy core of the electric vehicle, which provides power for the driving of the electric vehicle. However, during the production, assembly and actual use of the power battery, due to defects in the inside or outside of the battery cells it contains, it may cause the monomer The battery exploded. When the positive and negative electrodes of the battery cells of a single battery discharge more, and overlap with the collector plate to form a short circuit in the same series, it will cause thermal runaway of the battery module and the entire package, endangering the safety of the driver and passengers . [0003] The power battery of the traditional electric vehicle has no corresponding measures to prevent...
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IPC IPC(8): B60L3/00B60L3/04B60L58/10
CPCB60L3/0046B60L3/04B60L58/10Y02T10/70
Inventor 孙亚洲张广平劳力周鹏
Owner HUATING HEFEI POWER TECH