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High capacity sealed lead-acid accumulator passive protector

A lead-acid battery and passive protection technology, which is applied to battery pack components, emergency protection circuit devices, circuits, etc., can solve the problem of increasing equipment investment, low-power passive protectors with small pulse currents and amplitudes, and inability to function Obvious effects and other problems, to achieve the effect of inhibiting vulcanization and prolonging the service life

Inactive Publication Date: 2006-07-12
许凤山
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The low-power passive protector used to suppress the formation of lead sulfate crystals cannot play a significant role in large-capacity sealed lead-acid batteries due to the small pulse current and amplitude
In addition, when protecting and repairing, an external DC power supply is required, which increases equipment investment

Method used

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  • High capacity sealed lead-acid accumulator passive protector
  • High capacity sealed lead-acid accumulator passive protector

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 Shown is the circuit block diagram of the large-capacity sealed lead-acid battery passive protector of the present invention, in which an undervoltage and overvoltage protection circuit 1, a pulse oscillation and pulse shaping circuit 2, and a power output circuit 3 are connected in sequence. When the voltage of the protected battery 4 is within the operating voltage range of the undervoltage and overvoltage protection circuit 1, the undervoltage and overvoltage protection circuit 1 obtains electric energy from the battery 4, and passes through the pulse oscillation circuit With the pulse shaping circuit 2, the oscillating circuit in it is made to oscillate, and the oscillating pulse is output. After being shaped and accelerated, it is sent to the control terminal of the power output circuit 3, so that the electronic switch in it is turned on, and the pulse current is applied to the Protected battery 4 to dissolve and reduce lead sulfate crystals; when the volt...

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Abstract

The passive protector for large-scale sealing lead-acid accumulator comprises: a under / over-voltage protective circuit (1), a impulse oscillation and shaping circuit (2), and a power output circuit (3). When the voltage of protected cell within operating voltage of circuit (1), the latter obtains power from cell (4) to start oscillation and output shaping acceleration oscillation impulse from circuit (2) to the control port of circuit (3) to act impulse current on cell (4) for dissolving and reducing lead sulfate crystal; when the voltage of cell (4) beyond the range of circuit (1), keeping the protector standby. This invention needs no external power for fast and security protection, can prolong service time, and inhibits sulfidization of cell plate.

Description

technical field [0001] The invention relates to a passive protector for restoring battery capacity by suppressing and gradually removing lead sulfate crystals formed inside the plate of a large-capacity sealed lead-acid battery by using an electronic pulse method, especially a passive protector for a large-capacity sealed lead-acid battery . Background technique [0002] Large-capacity sealed lead-acid batteries are usually used as backup power for various types of high-power uninterruptible power supplies (UPS). Under the influence of insufficient or unbalanced charging, a thick and hard lead sulfate crystal will gradually form inside the battery plate, which will block the spongy Pb micropores of the negative plate, hinder the mutual conversion of electric energy and chemical energy, and cause the battery capacity to gradually decrease or even scrapped. At present, for batteries whose capacity has decreased due to the formation of lead sulfate crystals, the method of lat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/18H01M2/36
CPCY02E60/12Y02E60/10
Inventor 黎勇昌刘国兵陆丕清许凤山
Owner 许凤山
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