Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

DC screen charging management system and charging cut-off method for Ni-MH battery

A nickel-metal hydride battery, charging management technology, applied in the direction of secondary battery charging/discharging, battery disconnect circuit, battery circuit device, etc. To achieve the effect of realizing automatic charging strategy management, ensuring charging capacity and low cost

Active Publication Date: 2021-11-09
INNER MONGOLIA XIAOKE HYDROGEN STORAGE ALLOY CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The battery packs in the current grid-powered DC system mainly use nickel-cadmium batteries and lead-acid batteries, but the disadvantages of these two batteries are environmental pollution, difficult recycling, poor low-temperature discharge performance, and heavy maintenance workload.
The current charging process of DC screen power supply equipment adopts constant power charging, that is, as the voltage rises, the current gradually decreases, and it will continue to trickle charging after the charging is completed. The closer to full, the slower the charging, and the charging time Extended, and when fully charged, the charging mode jumps to the float charging mode, and the battery pack is charged for a long time, which will easily reduce the service life of the battery pack in the long run, and also have a great impact on the service life of the DC screen power supply equipment and its electrical components

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • DC screen charging management system and charging cut-off method for Ni-MH battery
  • DC screen charging management system and charging cut-off method for Ni-MH battery
  • DC screen charging management system and charging cut-off method for Ni-MH battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, see attached figure 1 , the present invention provides a DC screen charging management system using Ni-MH batteries, including a controller 1 and an embedded integrated touch screen 2 connected to the controller 1, a detection unit, a plurality of Ni-MH battery packs 3 and a charging module 4. A temperature sensor 5 connected to the controller 1 is provided in each nickel-metal hydride battery pack 3 . The above detection unit includes an insulation detection unit 6 , a battery inspection unit 7 , a DC detection unit 8 , an AC detection unit 9 and a switch value detection unit 10 .

[0031] The touch screen 2 is connected with the controller 1, the controller 1 is connected with the charging module 4, the charging module 4 is connected with the Ni-MH battery pack 3, the Ni-MH battery pack 3 is attached with a temperature sensor 5, and the temperature sensor 5 is connected with the controller 1. The operation of the controller 1 is realized through the tou...

Embodiment 2-3

[0054] Embodiment 2-3, this embodiment is a charging cut-off method, wherein: the DC screen charging management system and charging method of the Ni-MH battery are the same as Embodiment 1, the only difference is: the cut-off band of the Ni-MH battery pack 3 The power setting values ​​are different, specifically:

[0055] In Example 2, the cut-off setting value of the nickel-metal hydride battery pack (3) is SOC=80% of the rated capacity;

[0056] In Example 3, the cut-off setting value of the nickel-metal hydride battery pack (3) is SOC=90% of the rated capacity.

Embodiment 4

[0057] Example 4 Comparison test of DC screen charging cut-off methods for different batteries

[0058] This embodiment compares the performance of the DC screen charging cut-off methods of different batteries, as follows:

[0059] Group A: Charging Ni-MH batteries

[0060] Charge the DC panel according to the DC panel charging cut-off method provided in Example 1, wherein the DC panel collects the SOC of the electric quantity of the Ni-MH battery pack 3 to be 100% of the rated capacity, and the charging time is 2 hours.

[0061] Group B: charging nickel-chromium batteries

[0062] Use the existing conventional rate current for charging, limit the high voltage, with the charging time, the voltage is gradually increasing, and the current is decreasing. When the current drops below 0.05 rate, it will switch to trickle charging, and it will always be floating charge to maintain the charge. . This method takes more than 10 hours to charge to full charge, which is time-consuming...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a DC screen charging management system for Ni-MH batteries, which includes a controller and an embedded integrated touch screen connected to the controller, a detection unit, a plurality of Ni-MH battery packs and a charging module. A temperature sensor connected to the controller is provided in the Ni-MH battery pack; in addition, the present invention also provides a charging method based on the above-mentioned system, and the Ni-MH battery is charged in a constant current mode, compared with the existing For the constant power charging method of nickel-cadmium batteries, lead-acid batteries and lithium batteries, it has the advantages of high-voltage cut-off, fast charging, and can sensitively identify the state of power. The phenomenon of charging, the charging process close to the full charge state is consistent with the previous charging rate, and the charging time is short, which not only improves the service life of the DC panel power supply, but also ensures the service life of the components in the DC panel device.

Description

technical field [0001] The invention relates to the technical field of nickel-metal hydride battery charging control, in particular to a DC panel charging management system and a charging method for a nickel-hydrogen battery. Background technique [0002] DC panel system is the abbreviation of DC power supply operating system. It provides DC voltage for control load, power load and DC accident lighting load in power plants or substations. It is the basis of contemporary power system control and protection. The DC panel system is a brand-new digital control, protection, management, and measurement new type of DC system, which provides powerful functions for remote detection and control, and has remote control, remote adjustment, telemetry, remote signaling functions and remote communication interfaces. Including charging cabinet, charging module, monitoring module, battery pack and step-down silicon chain and other units. [0003] The battery pack is the core component of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/441H01M10/443H02J7/0031H02J7/0036Y02E60/10
Inventor 张志钢刘卫军王云波皇甫益吴发明尹亮亮赵小龙刘洋杨婷陈松
Owner INNER MONGOLIA XIAOKE HYDROGEN STORAGE ALLOY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com