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Independent power supply and operating method thereof

A technology of independent power supply and operation method, applied in circuits, current collectors, electric vehicles, etc., can solve the problems of short life of lead-acid batteries, large voltage difference between single cells, pollution of nickel-cadmium batteries, etc., to solve the problem of overcharge and overdischarge and the effect of the expansion of the monomer pressure difference

Pending Publication Date: 2021-01-01
包头昊明稀土新电源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, nickel-cadmium batteries, lead-acid batteries, lithium-ion batteries and nickel-metal hydride batteries are used as independent power supplies. The cadmium electrode pollution of nickel-cadmium batteries is limited by application. The life of lead-acid batteries is short and needs to be replaced once a year. Lithium-ion batteries There are safety problems, and there are problems of low temperature resistance
The nickel-metal hydride battery with rare earth elements as the main component of the battery electrode material is resistant to high and low temperatures, and has high safety. It is more suitable as an independent power supply, but there is a problem of large voltage difference between single batteries after long-term use.

Method used

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  • Independent power supply and operating method thereof
  • Independent power supply and operating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, this embodiment proposes an independent power supply with long service life. Including rare earth new power supply, parallel charger, battery management system, discharge contactor, charging contactor.

[0033] The rare earth new power supply is used as an independent power supply, and the rare earth new power supply is composed of several rare earth single batteries connected in series to form an independent power supply. In this embodiment, 10 single cells are included, and the rated voltage of each single cell is 2.4V, and the 10 single cells are connected in series to form an independent power supply of 24V. Through the dual protection combination of the parallel charger and the battery management system, the integration of the unscheduled unified charging and discharge protection of the single battery of the rare earth new power supply is realized, and the overcharge and overdischarge of the rare earth new power supply and the single batter...

Embodiment 2

[0043] like figure 2 As shown, this embodiment proposes an operating method of an independent power supply, and on the basis of the independent power supply in Embodiment 1, an operating method thereof is proposed.

[0044] Include the following steps:

[0045] Step 1: Power up the battery management system.

[0046] Close the air switch, turn on the external power supply, the AC power of the external power supply is converted into DC power through the AC / DC converter, and then stabilized by the DC / DC converter to supply power to the battery management system; if the external power supply is dead, press the non-self-locking switch And keep it for 1s-2s, the voltage of the discharge end of the rare earth new power supply is regulated by the DC / DC converter, and then supplied to the battery management system.

[0047] Step 2: The battery management system controls the discharge contactor and the charging contactor to be connected, the external power supply supplies power to t...

example 1

[0062] A 24V DC motor needs a stable 24V power supply, configure a 24V independent power supply, and run according to the following procedures:

[0063] a. Install 10 rare-earth single batteries, parallel charger with 10 charging ports, battery management system, discharge contactor, non-self-locking switch, charging contactor, DC / DC and AC / DC, and connect the lines, Then connect the air switch at the input end, press the non-self-locking switch, keep it for 2s, DC / DC is connected, and the battery management system is powered on;

[0064] b. After the battery management system is powered on, the default discharge contactor and charging contactor are connected by default. If the external power supply has input power, the parallel charger will charge each single battery, and the independent power supply will output 24V to the outside;

[0065] c. The total charging amount input by the parallel charger is sent to the battery management system through communication. The battery ma...

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PUM

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Abstract

The invention relates to an independent power supply and an operation method thereof. The independent power supply comprises a rare earth new power supply, a parallel charger, a battery management system, a discharge contactor and a charge contactor, the discharge contactor is arranged at the discharge end of the rare earth new power supply; the parallel charger comprises a main charger, the maincharger is provided with charging interfaces, the number of the charging interfaces is the same as that of the single batteries, the charging interfaces are correspondingly connected with the single batteries, and the input end of the parallel charger is connected with a charging contactor; and the parallel charger is connected with the battery management system through a communication line. The battery management system is connected with the rare earth new power supply, the discharge contactor and the charge contactor to control the on-off of the charge contactor and the discharge contactor.According to the invention, the problems of over-charging and over-discharging of the rare earth new power supply and voltage difference expansion of the single battery are solved.

Description

technical field [0001] The present invention relates to the field of power battery terminal applications, and more specifically, to an independent power supply and an operating method thereof. Background technique [0002] At present, devices such as DC motors, low-voltage photovoltaic base stations, and low-voltage signal devices all require 24V uninterrupted independent power supply. Due to the relatively narrow range of operating conditions of the devices, intermittent silence is required, and low power consumption is maintained during the silence. To meet the needs of high-power output and unmanned operation, it is required that the uninterrupted independent power supply not only has high safety and adapts to high and low temperature environments, but also can start automatically and run stably and reliably for a long time. [0003] At present, nickel-cadmium batteries, lead-acid batteries, lithium-ion batteries and nickel-metal hydride batteries are used as independent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/0013H02J7/0068H02J7/0063H02J7/0018H02J7/00302H02J7/00306H02J7/0031H01M10/441Y02E60/10
Inventor 蒋志军郑兴杰吴保华毕野袁爱东兰刚李文峰侯传宝石蕾
Owner 包头昊明稀土新电源科技有限公司