CN205194803U - Device is separated to monomer battery - Google Patents

Abstract

The utility model provides a single storage battery detachment device, comprising a first terminal, a diode assembly, a switch and a second terminal, the first terminal is connected to the second terminal through the diode assembly and the switch, wherein , the first terminal is connected to the cathode of the diode assembly, the second terminal is connected to the anode of the diode assembly, and the diode assembly conducts in one direction. When in use, the switch is disconnected, the first terminal is connected to the negative pole of the battery connected to the positive pole of the faulty single battery, the second terminal is connected to the positive pole of the battery connected to the negative pole of the faulty single battery, and the switch After closing, the diode assembly is turned on, and the current is transmitted from the second terminal through the switch and the diode assembly to the first terminal, so that the faulty single battery is disconnected while the whole group of batteries is still in conduction, so as to realize the fault single Detach the battery without power failure.

Description

Single battery detachment device

technical field

The utility model relates to the field of electric power systems, in particular to a device for detaching single storage batteries.

Background technique

The DC power supply system in the power system provides reliable working power for control, signal, relay protection, automatic devices and emergency lighting, etc. It is an important part of the safe operation of the power system. The reliability and safety of the DC power system itself directly affects The safety of the entire power system. With the continuous increase of the commissioning time of the DC power system of the substation, problems exposed in the DC power system are not uncommon. The most prominent problem is that the long-term operation of the battery pack will frequently cause problems such as single battery lagging and deterioration, resulting in the failure of the battery pack. Consistency differences, and the reduction of the capacity of a single battery will lead to a decrease in the performance of the entire battery pack like the short-board effect of a wooden barrel. At this time, it is necessary to detach the damaged single battery from the battery pack, and install it into the battery pack after the new single battery is purchased. However, the battery pack is often put into operation for a long time, and it is difficult for the manufacturer to provide the same type of battery, and the entire replacement cycle is long.

At present, the processing method of detaching the damaged single storage battery from the storage battery pack is: stop the operation of the storage battery pack, then detach the damaged single storage battery, and then connect the storage battery pack. With such a treatment method, for substations with dual batteries and double charges, it is necessary to change the operation mode of the DC power system and withdraw one of the battery packs, which has great potential safety hazards; and for old-fashioned substations with only single battery and single charge, when After the only group of battery packs stops running, all secondary equipment in the station can only be directly provided by the charger. If there is a loss of AC voltage or a fault in the charger, all secondary equipment in the station will lose power and cannot be used for The operation of the power system provides a reliable guarantee.

Utility model content

Aiming at the problem in the above-mentioned prior art that the process of replacing a faulty single battery cannot be operated with electricity, the utility model provides a single battery detachment device, which can replace a faulty single battery when the battery pack is not powered off, thereby providing The operation of the power system provides a reliable guarantee.

The scheme of the present utility model is as follows:

The unit battery detachment device includes a first terminal, a diode assembly, a switch and a second terminal, the first terminal is connected to the second terminal through the diode assembly and the switch, wherein the first terminal is connected to The cathode of the diode assembly and the second terminal are connected to the anode of the diode assembly, and the diode assembly conducts in one direction;

When in use, the switch is disconnected, the first terminal is connected to the negative pole of the battery connected to the positive pole of the faulty single battery, the second terminal is connected to the positive pole of the battery connected to the negative pole of the faulty single battery, and the switch After closing, the diode assembly conducts, and the current of the storage battery pack is transmitted from the second terminal through the switch and the diode assembly to the first terminal.

In the unit battery detachment device of the present utility model, the negative electrode of the one-way conducting diode assembly is connected to the first terminal, and the positive electrode is connected to the second terminal; when in use, the switch is disconnected, and the first terminal is connected The negative pole of the battery connected to the positive pole of the faulty single battery, the second terminal is connected to the positive pole of the battery connected to the negative pole of the faulty single battery, after the switch is closed, the diode assembly is turned on, and the current flows from the second terminal Through the switch and the diode assembly, it is transmitted to the first terminal, so that the faulty single battery is disconnected while the whole set of batteries is still in conduction, so as to realize the disconnection of the faulty single battery without power failure.

In one of the embodiments, the diode assembly includes a connecting piece and more than two diodes, and the connecting piece can be selectively connected to any one of the diodes.

In this embodiment, for storage battery packs of different capacities, corresponding diodes can be selected through the connecting piece, thereby improving the application flexibility of the device.

In one of the embodiments, the diode is a spiral diode. The spiral diode is small in size and light in weight, thereby improving the convenience of using the device for detaching the single storage battery.

In one of the embodiments, the device for disconnecting the single storage battery further includes an indicator light connected in series with the switch, the indicator light is connected between the first terminal and the second terminal; the switch is closed Afterwards, if the diode component is turned on, the indicator light is on.

The indicator light can detect whether the performance of the diode assembly is normal, which further improves the convenience of using the unit battery detachment device.

Description of drawings

FIG. 1 is a schematic structural view of a battery cell detaching device according to an embodiment;

Fig. 2 is a schematic structural view of a battery cell detaching device according to an embodiment;

Fig. 3 is a schematic structural view of a battery cell detaching device of another embodiment;

FIG. 4 is a schematic structural diagram of a self-test circuit of a diode assembly in an embodiment.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 for a schematic structural diagram of an embodiment of a device for separating a battery cell.

The device for detaching a battery cell includes a first terminal 100, a diode assembly 101, a switch 102 and a second terminal 103, the first terminal 100 is connected to the second terminal 103 through the diode assembly 101 and the switch 102 , wherein the first terminal 100 is connected to the cathode of the diode assembly 101, the second terminal 103 is connected to the anode of the diode assembly 101, and the diode assembly 101 conducts in one direction;

When in use, the switch 102 is disconnected, the first terminal 100 is connected to the negative pole of the battery connected to the positive pole of the faulty battery cell, and the second terminal 103 is connected to the positive pole of the battery connected to the negative pole of the faulty battery cell. After the switch 102 is closed, the diode assembly 101 is turned on, and the current of the battery pack is transmitted from the second terminal 103 to the first terminal 100 through the switch 102 and the diode assembly 101 .

In this embodiment, the cathode of the diode assembly 101 that conducts in one direction is connected to the first terminal 100, and the anode is connected to the second terminal 103; when in use, the switch 102 is turned off, and the first terminal 100 Connect the negative pole of the battery connected to the positive pole of the faulty single battery, the second terminal 103 is connected to the positive pole of the battery connected to the negative pole of the faulty single battery, after the switch 102 is closed, the diode assembly 101 conducts, and the current flows from the second The terminal 103 is transmitted to the first terminal 100 through the switch 102 and the diode assembly 101, so the battery pack can work normally. For the faulty single battery, the current comes out from the positive pole of the faulty single battery and reaches the negative pole of the diode assembly 101, so for the faulty single battery, the circuit is blocked, and the battery will not be short-circuited.

In one embodiment, the diode assembly 101 includes a connecting piece and more than two diodes, and the connecting piece can be selectively connected to any one of the diodes.

In this embodiment, for storage battery packs of different capacities, corresponding diodes can be selected through the connecting piece, thereby improving the application flexibility of the device.

Specifically, when the switch 102 is turned off, the first terminal 100 and the second terminal 103 can be connected to battery packs of different capacities, and for battery packs of different capacities, corresponding diodes can be selected through the connecting piece, so After the switch 102 is closed, the selected diode is turned on, and the current of the battery pack is transmitted from the second terminal 103 to the first terminal 100 through the switch 102 , the diode and the connecting piece. Therefore, the device uses corresponding diodes according to the actual capacity of the battery pack, which improves the flexibility of application.

In one embodiment, the diode 101 is a spiral diode.

The spiral diode is small in size and light in weight, thereby improving the convenience of using the device for detaching the single storage battery.

Fig. 2 is a schematic structural diagram of a preferred embodiment of the unit battery detaching device, please refer to Fig. 2 , the part inside the dotted line box represents the unit battery detaching device.

In the battery pack, the "faulty battery" is damaged, and battery A and battery B are normal batteries. At this time, it is necessary to use a single battery detachment device to facilitate the staff to detach the faulty battery. The specific steps are as follows:

First turn off the switch, select the spiral diode D1 corresponding to the actual capacity of the battery pack through the connecting piece, and connect the terminal A (namely the first terminal post) and terminal B (namely the second terminal post) of the device to the battery respectively. The negative pole of A and the positive pole of battery B;

After the connection is completed, close the switch, the current of the battery pack flows from the positive pole of the battery B to the positive pole of the spiral diode D1 through the terminal B, flows out from the negative pole of the spiral diode D1, and reaches the negative pole of the battery A through the terminal A, the circuit is normal, and the battery The group works fine.

Moreover, for the faulty battery, the current comes out from the positive pole of the faulty battery and reaches the negative pole of the spiral diode D1, so for the faulty battery, the circuit is blocked and the battery will not be short-circuited. Disconnect the connecting wires at both ends of the faulty battery, take out the faulty battery, connect the negative pole of battery A to the positive pole of battery B with a short wire, and finally remove the device, and the work is completed.

Please refer to FIG. 3 for a schematic structural view of another embodiment of a device for detaching a battery cell.

In one of the embodiments, the unit battery disconnecting device further includes an indicator light 300 connected in series with the switch 102, and the indicator light 300 is connected between the first terminal 100 and the second terminal 103 ; After the switch 102 is closed, if the diode assembly 101 is turned on, the indicator light 300 is on.

The indicator light 300 can detect whether the performance of the diode assembly 101 is normal, which further improves the convenience of using the single battery detachment device and enhances user experience.

Specifically, when the switch 102 is turned off, the first terminal 100 and the second terminal 103 are connected to the battery pack, and after the switch 102 is closed, if the diode assembly 101 is turned on, the indicator light 300 is on. It is determined that the performance of the diode assembly 101 is normal; otherwise, it is determined that the diode assembly 101 is faulty.

Please refer to FIG. 4 for a schematic structural diagram of a diode assembly self-test circuit in an embodiment.

Switch the handle of the self-test circuit switch (that is, the KK shown in the figure) to check whether the performance of the diode D1 is normal: after the power is turned on, when the KK handle is switched to ①-② on (that is, when the switch is closed), the indicator HR lights up, proving The performance of diode D1 is normal, otherwise it proves that diode D1 is faulty.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (4)

1. cell batteries dissembling device, it is characterized in that, comprise the first binding post, diode assembly, switch and the second binding post, described first binding post is connected with described second binding post by diode assembly, switch, wherein, first binding post connects the negative pole of diode assembly, the positive pole of the second binding post connection diode assembly, described diode assembly one-way conduction;

During use, described switch disconnects, described first binding post connects the negative pole of the storage battery be connected with Trouble ticket accumulator body positive pole, described second binding post connects the positive pole of the storage battery be connected with Trouble ticket accumulator body negative pole, after described switch is closed, described diode assembly conducting, the electric current of batteries transfers to the first binding post from the second binding post by switch, diode assembly.

2. cell batteries dissembling device according to claim 1, is characterized in that, described diode assembly comprises brace and plural diode, and in the selectable and described diode of described brace, any one is connected.

3. cell batteries dissembling device according to claim 2, is characterized in that, described diode is spiral diode.

4. cell batteries dissembling device according to claim 1, is characterized in that, also comprises the indicator light of connecting with described switch, and described indicator light is connected between described first binding post and the second binding post; After described switch is closed, if described diode assembly conducting, then described indicator light lights.