A lithium-ion battery pack system with high electromagnetic compatibility

A lithium-ion battery pack and electromagnetic compatibility technology, which is applied in the manufacture of battery pack components, non-aqueous electrolyte storage batteries, and electrolyte storage batteries, can solve problems such as high cost and difficulty in modification, and reduce conduction emission and radiation emission. , Enhance the effect of PCB board radio frequency anti-interference ability

Active Publication Date: 2017-11-28
SHANGHAI AEROSPACE POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent believes that the PCB board greatly affects the electromagnetic compatibility performance of the entire system, but it will cost a lot of money to rectify the PCB board, and some PCB boards inside the system have already been finalized, making it difficult to make major changes. Modify the PCB board to improve the electromagnetic compatibility performance

Method used

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  • A lithium-ion battery pack system with high electromagnetic compatibility
  • A lithium-ion battery pack system with high electromagnetic compatibility
  • A lithium-ion battery pack system with high electromagnetic compatibility

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Embodiment Construction

[0046] based on the following Figure 1 ~ Figure 3 , specifically explain the preferred embodiment of the present invention.

[0047] Such as figure 1 As shown, the present invention provides a lithium-ion battery pack system with high electromagnetic compatibility, comprising:

[0048] System frame 1;

[0049] Several battery modules 8, which are arranged in the system frame 1, and each battery module 8 includes several single cells connected in series or in parallel;

[0050] LECU (Local Electric Control Unit) component 2, which is fixed in the system frame 1;

[0051] BMU (Battery Management Unit, Battery Management Unit) component 3, which is fixed in the system frame 1;

[0052] A high-voltage wire harness 4, which connects several battery modules 8 in series, and the high-voltage wire harness 4 is connected to the system frame 1 through a high-voltage connector 9;

[0053] A low-voltage wiring harness 5, which is connected to the BMU component 3 and connected to the...

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Abstract

A lithium-ion battery pack system with high electromagnetic compatibility, including a system frame, several battery modules, LECU components, BMU components, high-voltage wiring harnesses, low-voltage wiring harnesses, communication wiring harnesses and module sampling wiring harnesses. The high-voltage wire harness adopts a multi-layer structure, and adopts a vertical wiring method with the low-voltage wire harness, which enhances the anti-interference ability of the system's radio frequency. It can reduce the internal high-frequency noise of the system and transmit it to the outside through the low-voltage wiring harness. The communication harness adopts a twisted pair connection, which not only enhances the system's radio frequency anti-interference ability, but also reduces the external radiation emission of high-frequency noise. The BMU components The sealing method and grounding method of the metal shell of the PCB board enhance the anti-interference ability of the PCB board and the anti-interference ability of the system conduction.

Description

technical field [0001] The invention relates to the field of lithium-ion battery systems for electric vehicles, in particular to a lithium-ion battery pack system with high electromagnetic compatibility. Background technique [0002] Electromagnetic Compatibility EMC refers to the ability of equipment to work normally in an electromagnetic environment. In the power system, when the voltage and current of the circuit change rapidly in a very short period of time, the external environment of the equipment will undergo complex changes, resulting in electromagnetic interference. [0003] The battery pack system is an important component in an electric vehicle. A battery pack system with good electromagnetic compatibility can not only ensure that the system can work normally in the electromagnetic environment inside the vehicle, but also avoid the system’s damage to other electronic devices in the vehicle. Generate electromagnetic interference, which greatly improves the reliabi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/058H01M2/20B60L11/18H01M50/24H01M50/249H01M50/284H01M50/502
CPCH01M10/058B60L50/66B60L58/19H01M2220/20H01M50/502Y02T90/16Y02T10/70Y02E60/10Y02P70/50
Inventor 郁辰侯敏李立楠那伟曹辉王东
Owner SHANGHAI AEROSPACE POWER TECH
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