Storage battery charging voltage stabilizing circuit
A voltage stabilizing circuit and battery technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of battery over-discharge, long power outage, battery failure, etc., and achieve simple design structure, prolong service life, and protect equipment. Effect
Inactive Publication Date: 2016-03-02
STATE GRID CORP OF CHINA +2
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Problems solved by technology
The high cost of batteries accounts for a large proportion of investment, which causes huge economic losses to operators
[0003] According to the battery manufacturer's anatomical analysis of the scrapped VRLA batteries used in outdoor equipment, it is believed that the main reason for the end of battery life is that the power grid environment in the area where the outdoor equipment is located has frequent power outages and the power outage time is too long, resulting in frequent over-discharging and under-charging of the batteries, resulting in Sulfation occurs in the battery and fails
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[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0016] In order to stabilize the current flow direction in the grid and filter the electromagnetic waves that are too high or too low in the circuit, the charging and voltage stabilizing circuit designed by the present invention is as follows figure 1 shown. Wherein the fuse is connected with the transformer, and one end of the output terminal of the transformer is connected with the positive pole of D3 and the negative pole of D1, and the other end is connected with the positive pole of D4 and the negative pole of D2. The diode D5 is connected between the Vin terminal and the +Vout terminal of the three-terminal regulator integrated chip IC. In addition, the capacitor C1 is connected to the Vin terminal of the three-terminal regulator integrated...
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The invention discloses a storage battery charging voltage stabilizing circuit. The storage battery charging voltage stabilizing circuit comprises diodes D1-D5, a transformer T1, electrolytic capacitors C1-C3, a three-end voltage stabilizing integrated chip IC, resistors R1-R2, an adjustable resistor PR1 and a protective tube. According to the storage battery charging voltage stabilizing circuit, the unidirectional conduction principle of the diodes is utilized, a voltage direction of a charging output circuit is effectively controlled, a problem of poor stability caused by an AC current is solved, the filtering effect of the diodes is further utilized, electric waves outputted by the electric network is stabilized to be a constant value, so a circuit voltage of the output end is a constant value. The storage battery charging voltage stabilizing circuit effectively solves problems of over-discharging and insufficient charging of a storage battery caused by instability of the external electric network, and service life of the battery is effectively prolonged.
Description
technical field [0001] The invention relates to the field of battery charging, in particular to a voltage stabilizing circuit for battery charging. Background technique [0002] With the rapid development of the communication industry in recent years, trunk optical cables, microwave unmanned stations, mobile base stations and other facilities have been successively established, and a large number of battery packs are used in these devices. However, in recent years, many operators have generally reported that there are major problems with batteries used in outdoor equipment. Taking the commonly used valve-controlled sealed lead-acid VRLA battery as an example, for the same kind of VRLA battery from the same manufacturer, the service life of the battery used for outdoor equipment is much lower than that of the normal battery, far below the design life of the battery, such as a battery with a capacity of 2V The average service life of the battery is less than 3 years, and the ...
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IPC IPC(8): H02J7/00
Inventor 王允龙崔孝强李占海于晓光
Owner STATE GRID CORP OF CHINA