Lithium-ion battery pack intelligent equalization module

A battery pack and equalization module technology, which is applied in the field of satellite power supply, can solve problems such as poor equalization effect, affecting battery life and reliability, and achieve the effects of improving reliability, reducing complicated screening, and accurate location

Active Publication Date: 2018-01-05
中电科蓝天科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, domestic satellite equalization units use software equalization technology, which not only requires complex software algorithms, but also can only achieve a fixed equalization current, and the equalization effect is poor, seriously affecting battery life and reliability

Method used

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  • Lithium-ion battery pack intelligent equalization module
  • Lithium-ion battery pack intelligent equalization module
  • Lithium-ion battery pack intelligent equalization module

Examples

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Embodiment Construction

[0029] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0030] see figure 1 , an intelligent equalization module for lithium-ion battery packs, comprising:

[0031] A balanced threshold reference circuit, the balanced threshold reference circuit includes a balanced upper threshold reference circuit and a balanced lower threshold reference circuit; wherein: the balanced upper threshold reference circuit includes rated resistors R14-R22, Zener diode D2, and capacitor C4; wherein: One end of the rated resistor R14 is connected to the +12V power supply, and the other end of the rated resistor R14 is electrically connected to one end of the rated resistor R19, one end of the rated resistor R15, and the cathode of the Zener diode D2; the other end of the rated resistor R19 is the reference voltage V RE...

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Abstract

The present invention discloses a lithium ion storage battery intelligent equalization module, relating to the technical field of satellite power supply. The lithium ion storage battery intelligent equalization module is characterized in that the module comprises an equalization threshold reference circuit, an equalization upper end comparator circuit, an equalization lower end comparator circuit, a constant current feedback circuit, an upper end equalization shunt circuit and a lower end equalization shunt circuit, wherein, the equalization threshold reference circuit comprises an equalization upper end threshold reference circuit and an equalization lower end threshold reference circuit, by using the technical scheme, each equalizer and a storage battery form a sub system through pure hardware self equalization, a self equalization function is realized, equalization current changes with the change of battery voltage, the linear equalization is realized, and the intelligent equalization is truly realized.

Description

technical field [0001] The invention relates to the technical field of satellite power supplies, in particular to an intelligent equalization module with high intelligence and high reliability, which is suitable for various orbital lithium-ion battery packs. Background technique [0002] Lithium-ion battery pack intelligent equalization module is an important part of the space power supply. It always protects the space-use lithium-ion battery pack and prevents the battery itself from being damaged due to excessive voltage differences between cells, thereby prolonging the service life of the lithium-ion battery pack. Equalization charging is an essential key technology for the equalization management of lithium-ion batteries for long-life satellites. [0003] At present, domestic satellite equalization units use software equalization technology, which not only requires complex software algorithms, but also can only achieve a fixed equalization current, and the equalization ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCY02E60/10
Inventor 胡斌李玲冯利军
Owner 中电科蓝天科技股份有限公司
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