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Storage battery safety protection device and implementation method

A technology of a safety protection device and an implementation method, applied in the field of battery safety protection devices, can solve the problems of affecting the working state of the load, damage to the life of the battery, fluctuation of the DC line voltage, etc., and achieve the effects of avoiding the heating of the battery, prolonging the life, and reducing waste.

Inactive Publication Date: 2016-04-06
GUANGZHOU HONGHUAI ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ①The DC screen has an over-current protection function. The instantaneous large current will cause the DC screen to be protected and shut down, and a huge voltage fluctuation will be generated on the DC line, which will affect the working state of the load;
[0005] ② Instantaneous high current impact may damage the DC screen;
[0006] ③Unlimited high current may damage the battery;
When the battery is fully charged, the battery is always in a floating charge state; this traditional DC system composition mode is extremely destructive to the life of the battery

Method used

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  • Storage battery safety protection device and implementation method
  • Storage battery safety protection device and implementation method
  • Storage battery safety protection device and implementation method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Such as Figure 1-Figure 3 As shown, the battery safety protection device of the present invention is installed between the DC circuit and the battery, and is characterized in that it includes a PWM module, a CPU module, a temperature detection module, a voltage detection module, a current detection module and an interface module, and the PWM module , a temperature detection module, a voltage detection module, a current detection module and an interface module are all connected to the CPU module;

[0047] The PWM module is used to control the voltage and current of battery charging;

[0048] The CPU module is used to collect the signals of the current detection module, the voltage detection module and the temperature detection module, and control the PWM module to realize the precise control of the battery charging voltage and current;

[0049] The temperature detection module is used to detect the working environment temperature of the battery and the temperature of t...

Embodiment 2

[0068] This embodiment takes the 220V battery pack with 108 2V cells common in substations as an example. If there are 8 inferior cells that cannot be used, the 8 inferior cells can be withdrawn, and the remaining 100 cells can continue to be used. The method is to change the floating charging voltage of the DC panel to the battery pack from the original 240V to 223V, which changes the original output voltage of the DC panel in the DC system. On the other hand, the change of the output voltage of the DC panel often results in The manufacturer needs to send a special person to make changes, and the operation is cumbersome. Using the battery protection device of the present invention, input the nominal voltage and the number of cells of the current battery pack in the display module, and the CPU module will send instructions to the PWM module, and the 240V floating charge voltage output by the current DC screen will be output through the PWM The module is adjusted to 223V output...

Embodiment 3

[0071] When the air conditioner in the computer room fails or the power of the air conditioner is insufficient or there is no air conditioner installed at all, such as in hot seasons such as summer, when the indoor temperature in the computer room is relatively high and it is not suitable for charging the battery, the temperature detection module of the battery protection device of the present invention collects the current working environment temperature Higher, such as greater than 35°C, the CPU module determines that the current temperature is a dangerous charging temperature for the battery pack, and controls the PWM module to reduce the output voltage to be equal to the voltage of the battery pack, so as to stop charging the battery pack at high temperature to avoid battery pack expansion Or thermal runaway. At the same time, the current detection module detects the current at the battery pack terminal. When the detected current value is negative, it indicates that the batt...

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PUM

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Abstract

The invention discloses a storage battery safety protection device and an implementation method. The storage battery safety protection device is mounted between a direct current circuit and a storage battery. The device comprises a PWM module, a CPU module, a temperature detection module, a voltage detection module, a current detection module and an interface module, wherein the PWM module, the temperature detection module, the voltage detection module, the current detection module and the interface module are respectively connected with the CPU module. According to the storage battery safety protection device and the implementation method, voltage and current applied to the storage battery by the external direct current circuit are intelligently adjusted by the CPU according to the data such as the monomer capacity, amount, voltage, working environment temperature and storage battery temperature of a storage battery pack, so that the purposes of protecting storage batteries, a rectifier and system security are reached.

Description

technical field [0001] The invention relates to the research field of storage batteries, in particular to a storage battery safety protection device and a realization method. Background technique [0002] DC systems are widely used in various fields of communication and information processing. The traditional DC system is mainly composed of DC panels (rectifiers) and batteries. In actual use, the battery pack plays an extremely important role as a backup power supply and is the heart of the entire DC system. At present, the DC system mainly uses the valve-regulated lead-acid battery as the backup power supply. The service life of the valve-regulated lead-acid battery has a great relationship with the working environment, the floating charge voltage, and the discharge maintenance cycle. [0003] In many occasions, the DC panel needs to supply power to the load, and the voltage supplied to the load is generally set as the floating charge voltage of the battery pack. When the...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J9/04
CPCH02J7/00302H02J7/00304H02J7/007H02J9/04
Inventor 黄尚南
Owner GUANGZHOU HONGHUAI ENERGY TECH CO LTD