CN204651950U - The online discharge system of a kind of storage battery - Google Patents

Abstract

The utility model discloses an online battery discharge system, which comprises a plurality of storage battery groups, acquisition units corresponding to the number of storage battery groups, a DC switching power supply, load equipment and a server, the output end of the DC switching power supply and the input end of the load equipment connected, the battery pack is respectively connected to a DC switching power supply and an acquisition unit, the acquisition unit is connected to a server, and the DC switching power supply is connected to the server through a control interface. The utility model is simple in structure, does not need to connect dummy loads, and does not need to connect circuits in series in the power supply system, greatly reducing fault points. The utility model utilizes the adjustable characteristics of the DC switching power supply and the actual load for online discharge, and collects battery information through the acquisition unit It is transmitted to the server for display, which is convenient for the staff to monitor the status of the battery in real time during the discharge process, effectively improves the safety of the device, and greatly improves the maintenance efficiency. The utility model can be widely used in the field of storage battery testing.

Description

A storage battery online discharge system

technical field

The utility model relates to a discharge device, in particular to an online discharge system for storage batteries.

Background technique

The power supply is regarded as the heart of the communication system, providing continuous power for the system—electric energy, and the battery is used as the backup power supply of the communication system. When the external power failure or other reasons cause a power outage, the battery is to ensure the uninterrupted power supply of the communication system and ensure the smooth flow of the network. The only and last line of defense, its safe operation is self-evident for the reliability and security of the communication system. the

Most of the backup batteries currently used in communication equipment rooms or mobile base stations are valve regulated lead-acid batteries (Valve Regulated Lead-Acid Battery), referred to as VRLA batteries. Compared with the traditional lead-acid battery, its maintenance-free, no leakage, no acid mist, small self-discharging electrodes, more than 10 years of life, and compact structure have made it a large number of equipment in China after the 1990s. Electric power, communication, railway and other communication room base stations.

At present, most of the battery online discharge schemes mainly have the following two methods:

One is to directly connect the booster unit in series between the battery and the output of the switching power supply. Although this solution can realize online discharge, an additional circuit is connected in series in the power system, which adds a point of failure to the system, and it is difficult to guarantee the power supply system. absolute safety;

Another common solution is to first separate the battery from the power supply system, then use the DC inverter as the load of the battery to discharge the battery, and connect the inverter output to the load device to achieve the purpose of energy recovery. In fact, this kind of solution is not considered to be online discharge, but can only realize energy recovery, and it also requires manual stripping of the battery, which increases the workload of the staff.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide an on-line battery discharge system with simple structure and high safety.

The technical scheme adopted in the utility model is:

An online battery discharge system, comprising a plurality of battery packs, acquisition units corresponding to the number of battery packs, a DC switching power supply, load equipment and a server, the output end of the DC switching power supply is connected to the input end of the load equipment, and the battery The groups are respectively connected to a DC switching power supply and an acquisition unit, the acquisition unit is connected to a server, the DC switching power supply is provided with a control interface, and the DC switching power supply is connected to the server through the control interface.

As a further improvement of the utility model, a fuse is also connected between the DC switching power supply and the battery pack.

As a further improvement of the utility model, the acquisition unit includes a voltage acquisition module, a current acquisition module, an internal resistance measurement module and a battery temperature acquisition module, and the battery pack is connected with the voltage acquisition module, the current acquisition module, the internal resistance measurement module and the battery temperature acquisition module respectively. The battery temperature acquisition module is connected, and the voltage acquisition module, current acquisition module, internal resistance measurement module and battery temperature acquisition module are all connected to the server.

As a further improvement of the utility model, the DC switching power supply is provided with a control input panel.

The beneficial effects of the utility model are:

The utility model provides a storage battery online discharge system with a simple structure, no need to connect dummy loads, no need to connect circuits in series in the power supply system, and greatly reduce fault points. The battery information is collected by the collection unit and transmitted to the server for display, which facilitates the staff to monitor the battery status in real time during the discharge process, effectively improves the safety of the device, and greatly improves the maintenance efficiency.

Description of drawings

The specific embodiment of the utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is a schematic block diagram of a storage battery online discharge system of the present invention;

Fig. 2 is a schematic block diagram of an acquisition unit of a storage battery online discharge system of the present invention.

Detailed ways

With reference to Fig. 1, a kind of accumulator online discharging system of the present utility model comprises a plurality of storage battery packs, the acquisition unit corresponding to the number of storage battery packs, DC switching power supply, load equipment and server, the output terminal of described DC switching power supply and the connection of load equipment The input end is connected, the storage battery pack is respectively connected with a DC switching power supply and an acquisition unit, the acquisition unit is connected with a server, the DC switching power supply is provided with a control interface, and the DC switching power supply is connected with the server through the control interface.

As a further preferred embodiment, a fuse is further connected between the DC switching power supply and the battery pack.

Referring to Fig. 2, further as a preferred embodiment, the acquisition unit includes a voltage acquisition module, a current acquisition module, an internal resistance measurement module and a battery temperature acquisition module, and the battery pack is respectively connected to the voltage acquisition module, the current acquisition module, the internal resistance The measurement module is connected to the battery temperature acquisition module, and the voltage acquisition module, current acquisition module, internal resistance measurement module and battery temperature acquisition module are all connected to the server.

As a further preferred embodiment, the DC switching power supply is provided with a control input panel.

Specific examples are as follows:

Assuming that the power system is configured with two sets of batteries, and one of the sets of batteries A needs to be discharged online,

The operation steps are as follows:

1. Disconnect the fuse of battery B. At this time, battery B is disconnected from the system, and battery A is running online. The switching power supply performs floating charging on battery A. Even if the mains power fails, because battery A is fully charged online, The load equipment will not be powered off;

2. Adjust the DC voltage output to the end-of-discharge voltage through the panel or control interface of the DC switching power supply;

3. The end-of-discharge voltage is lower than the full charge voltage of the battery, but it can meet the minimum power supply requirements of the load equipment. At this time, because the voltage value (end-of-discharge voltage) output by the switching power supply is lower than the voltage output ratio of battery A, battery A starts to discharge the load equipment. At this time, even if the capacity of battery pack A is insufficient or the battery failure causes the voltage to drop rapidly, because The switching power supply is in the online working state, which can supply power to the load equipment without causing the system to power down, and the power system is safe;

4. The acquisition unit collects the discharge process of battery A in real time, and when the staff checks that the discharge termination condition is reached, the discharge can be stopped immediately;

5. Through the panel or control interface of the DC switching power supply, reset the output of the switching power supply to the automatic charging mode, and charge the battery pack A that has been discharged until the battery pack A is fully charged and converts to the float charging mode;

6. Close the fuse of battery B to complete the discharge operation of battery pack A.

The above is a specific description of the preferred implementation of the present utility model, but the utility model creation is not limited to the described embodiments, and those skilled in the art can also make various equivalents without violating the spirit of the present utility model. Modifications or replacements, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application.

Claims (4)

1. the online discharge system of storage battery, it is characterized in that: comprise multiple batteries, the collecting unit corresponding with batteries quantity, direct-current switch power supply, load equipment and server, the output of described direct-current switch power supply is connected with the input of load equipment, described batteries is connected with direct-current switch power supply and collecting unit respectively, described collecting unit is connected with server, described direct-current switch power supply is provided with control interface, and described direct-current switch power supply is connected with server by control interface.

2. the online discharge system of a kind of storage battery according to claim 1, is characterized in that: be also connected with fusible link between described direct-current switch power supply and batteries.

3. the online discharge system of a kind of storage battery according to claim 2, it is characterized in that: described collecting unit comprises voltage acquisition module, current acquisition module, internal resistance measurement module and battery temperature acquisition module, described batteries is connected with voltage acquisition module, current acquisition module, internal resistance measurement module and battery temperature acquisition module respectively, and described voltage acquisition module, current acquisition module, internal resistance measurement module are all connected with server with battery temperature acquisition module.

4. the online discharge system of a kind of storage battery according to claim 1, is characterized in that: described direct-current switch power supply is provided with control inputs panel.