Charging device and charging system

A charging device and charging system technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problems of easy-to-wear batteries, danger, no DC shunt function, etc., to extend service life, improve applicability and flexibility Effect

Pending Publication Date: 2019-01-29
上海锦督智能科技有限公司
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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 technical solution of the present invention is that the existing charging mode has no DC shunt function, and the charging mode with fixed parameters is easy to wear out the battery and even cause danger

Method used

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  • Charging device and charging system
  • Charging device and charging system

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Embodiment Construction

[0022] The existing charging device directly provides DC current to the rechargeable battery after AC-DC conversion. Since there is no DC shunt function, it is impossible to distribute a suitable DC charging current to the rechargeable battery according to actual needs. The technical solution of the present invention utilizes the control unit to control the distribution of power from the AC / DC conversion unit to the DC conversion unit, and the DC conversion unit outputs a corresponding DC current according to the distributed power, thereby realizing the DC shunt function. Further, the control unit controls the distribution of power from the AC / DC conversion unit to the DC conversion unit according to the state of the rechargeable battery, so that the DC conversion unit outputs a charging voltage and a charging current that match the state of the rechargeable battery, so as to realize the charging process of the rechargeable battery. protection of.

[0023] The technical soluti...

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PUM

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Abstract

The technical scheme of the invention discloses a charging device and a charging system. The charging device comprises an AC/DC conversion unit, a DC conversion unit and a control unit, wherein the control unit is suitable for acquiring matched charging parameters according to a state of a rechargeable battery, and allocating corresponding power to the DC conversion unit from the AC/DC conversionunit according to the charging parameters; the charging parameters comprise a charging current; and the DC conversion unit is suitable for outputting a charging voltage and a charging current according to the allocated power. The charging device and the charging system realize the DC shunt function, output the charging parameters matched with the instantaneous state of the battery, effectively protect the battery during the charging process, prolong the service life of the battery, and avoid the potential safety hazards.

Description

technical field [0001] The invention belongs to the technical field of rechargeable batteries, and in particular relates to a charging device and a charging system for charging batteries. Background technique [0002] As a new type of battery, lithium battery is widely used in the fields of electric bicycles, electric motorcycles and energy vehicles due to its high safety, high stability, long life and environmental protection. [0003] The existing two-wheel ternary lithium battery charger adopts a three-stage charging mode (constant current, constant voltage, and conversion cut-off), and provides DC current to the rechargeable battery after AC-DC conversion. Since there is no DC shunt function, it is usually only for A single battery is charged and can only provide a fixed charging current. [0004] Most of the current battery protection boards for electric bicycles or electric motorcycles use hard board control and protection, namely current, voltage, temperature, short ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/04H02J7/00
CPCH02J7/045H02J7/0013
Inventor 沈文鸿包瑞星包燕锋刘鲁新
Owner 上海锦督智能科技有限公司
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