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Pipeline communication type power supply system and safety management method thereof

A power system and pipeline technology, applied in circuits, electrical components, secondary batteries, etc., can solve problems such as hidden dangers of battery pack safety, insufficient battery pack design and management methods, etc., to protect personal safety and property, and respond quickly in real time. , the effect of improving safety

Active Publication Date: 2019-04-30
JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a pipeline-connected power supply system and a safety management method for the pipeline-connected power supply system in view of the deficiencies in the prior art, so as to solve the problems caused by the design and management methods of existing battery packs. There are deficiencies, which lead to technical problems of potential safety hazards in battery packs

Method used

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  • Pipeline communication type power supply system and safety management method thereof
  • Pipeline communication type power supply system and safety management method thereof
  • Pipeline communication type power supply system and safety management method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] see figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a pipeline-connected power supply system, figure 2 It is a structural schematic diagram of a single cell, and the power system includes:

[0046] A pipeline connection type power supply system, comprising a battery pack 10 and a pipeline connection control device;

[0047]The pipeline connection control device includes an external pipeline 211, and a flame retardant liquid tank 221 connected to the external pipeline 211; a flame retardant solenoid valve 222 is provided in the external pipeline 211; wherein, the flame retardant liquid tank 221 can be used to store liquid nitrogen, water , aqueous solution, or other flame retardant liquid or coolant;

[0048] The battery pack 10 includes several single cells 110; the end of the external pipe 211 away from the flame retardant liquid tank 221 is provided with several branch pipes 212 for connecting the single cells 110; The flame retardant l...

Embodiment 2

[0067] This embodiment is optimized on the basis of Embodiment 1, so that this power supply system can be applied to the closed battery pack 10, please refer to image 3 , which is a schematic structural diagram of another pipeline-connected power supply system, which specifically includes:

[0068] The battery pack 10, the external pipeline 211, and the flame retardant liquid tank 221 connected to the external pipeline 211; a flame retardant solenoid valve 222 is provided between the external pipeline 211 and the flame retardant liquid tank 221; wherein, the flame retardant liquid tank 221 can be used Store liquid nitrogen, water, aqueous solution, or other flame-retardant liquids or coolants;

[0069] The battery pack 10 includes several single cells 110; the end of the external pipe 211 away from the flame retardant liquid tank 221 is provided with several branch pipes 212 corresponding to the single cells 110;

[0070] Each branch pipe 212 is equipped with a branch soleno...

Embodiment 3

[0075] Correspondingly, the present invention also provides a safety management method for a pipeline-connected power supply system, which is applicable to the power supply system mentioned in Embodiment 1 or Embodiment 2. Please refer to Figure 4 , which is a flow chart of a safety management method for a pipeline-connected power supply system, the method specifically includes the following steps:

[0076]S1: Obtain the real-time status of each single cell in the battery pack, the real-time status includes the temperature and voltage of the single cell;

[0077] Specifically, the battery pack also includes a battery state monitoring module; the battery state monitoring module includes several state acquisition modules arranged on the single cells, and the state collection modules of the battery state monitoring module obtain the data of each single cell in the battery pack. real-time status;

[0078] S2: Determine whether the temperature and voltage of each single cell exce...

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Abstract

The invention discloses a pipeline communication type power supply system and a safety management method thereof. The system includes a battery pack and a pipeline communication control device. The pipeline communication control device includes an external pipeline and a flame retardant liquid tank. A flame retardant solenoid valve is arranged between the external pipeline and the flame retardantliquid tank. The battery pack includes cells. The external pipeline is provided with branch pipes. The branch pipes are provided with branch flow solenoid valves. The branch pipes are independently controlled. Once the power supply system monitors abnormal heat or voltage abnormality of cells, the pipeline communication control device separately opens the branch flow solenoid valve corresponding to the cells without disturbing the other cells, and then opens the flame retardant solenoid valve to separately deliver flame retardant liquid or a coolant in the flame retardant liquid tank to the cells through the branch flow pipe of the external pipeline, thereby preventing thermal runaway from spreading to the other cells and preventing the thermal runaway from further spreading and burning the whole battery pack or even burning a vehicle, which effectively improve the safety of the battery pack.

Description

technical field [0001] The present application relates to the technical field of battery energy, and in particular to a pipeline-connected power supply system and a safety management method thereof. Background technique [0002] The power lithium-ion battery is a new high-energy battery that is commonly used at present. Because of its high energy, high battery voltage, wide operating temperature range, and long storage life, it has become the main power source of electric vehicles. The current design of the power battery pack of new energy vehicles is mainly to connect the single cells in groups to form a battery pack, and cooperate with BMS (BATTERY MANAGEMENT SYSTEM, battery management system) to monitor the voltage and temperature of each single cell. monitor. [0003] However, the energy-intensive battery packs in the prior art are mainly composed of flammable materials. Once a short circuit, overcharge, etc. occur, the single cell is prone to thermal runaway, and due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/34H01M10/0525H01M10/42H01M10/48A62C2/24A62C3/16H01M50/581
CPCA62C2/24A62C3/16H01M10/0525H01M10/425H01M10/486H01M2010/4271H01M50/581Y02E60/10
Inventor 陈景新许盼
Owner JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
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