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DC power supply system for lithium-ion battery power and communication

A storage battery and lithium-ion technology, which is applied in the field of electricity, can solve the problems that cannot be applied to the electric power and communication industries, and achieve the effects of high safety, good explosion-proof and safety, and long service life

Active Publication Date: 2018-11-20
WUHAN RUIY POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, this mode of operation or use cannot be applied to the power and communication industries that require continuous uninterrupted DC power

Method used

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  • DC power supply system for lithium-ion battery power and communication

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like figure 1 As shown, a DC power supply system for lithium-ion battery power and communication, including: a rectification unit and a charging unit. Among them, the rectification unit includes AC input circuit, DC monitoring device (PM, with LCD display), switching value monitoring device (FC) and insulation monitoring device (JY), one or more rectification modules (such as: figure 1 FMK1, FMK2 and FMK3), output bus (+ZM, -ZM), feed-out loop and isolation diode (D2). Wherein, the input terminal of the rectification module is connected to the AC input circuit, and the output terminal of the rectification module is connected to the DC output bus. The rectifier mo...

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PUM

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Abstract

The invention relates to a DC power system for power and communication, which adopts a lithium ion storage battery as an energy storage unit. An AC power supply is connected to the input end of a rectifier module through an AC input circuit; the AC power supply is converted into a required DC power supply through the rectifier module; the continuous DC power supply is provided for an external load through an output bus and a feed-out loop; the negative pole of an isolation diode is connected with the positive pole of the output bus, and the positive pole of the isolation diode is connected with the positive pole of a charging bus; the isolation diode is used for preventing the output current of the rectifier module from entering a charging unit through reverse cut-off when the rectifier module works normally; and when the rectifier module works abnormally, and the output voltage drops or stops outputting, the current of the lithium ion storage battery can be input to the output bus uninterruptedly through the forward direction of the isolation diode. The system can provide stable, reliable and uninterrupted DC power supply while charging the storage battery.

Description

technical field [0001] The invention relates to the field of electricity, in particular to a DC power supply system for electric power and communication using a lithium-ion storage battery as a backup power supply. Background technique [0002] At present, most of the energy storage units of DC power supply equipment widely used in power and communication systems are lead-acid batteries, and lithium-ion batteries, which are environmentally friendly and safe, are not used as energy storage units. In addition, the DC power supply system using lead-acid batteries only has a charging unit (module) without another independent rectification unit. While charging the lead-acid battery, the charging module can also provide continuous DC power to the external load. Continuously providing reliable DC power to loads is the key to DC systems for power and communication. [0003] Since the charging characteristics of lithium-ion batteries are different from those of lead-acid batteries,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/02H02J9/06
CPCH02J7/00H02J7/0029H02J7/00302H02J7/00304H02J7/022H02J9/06H02J2007/0067
Inventor 成汉平
Owner WUHAN RUIY POWER EQUIP CO LTD