CN217036768U - Cell charging and discharging device adopting redundant power supply - Google Patents
Cell charging and discharging device adopting redundant power supply Download PDFInfo
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- CN217036768U CN217036768U CN202122549295.6U CN202122549295U CN217036768U CN 217036768 U CN217036768 U CN 217036768U CN 202122549295 U CN202122549295 U CN 202122549295U CN 217036768 U CN217036768 U CN 217036768U
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Abstract
The utility model relates to a battery cell charging and discharging device adopting a redundant power supply, which is used for charging and discharging a battery cell and comprises an upper computer, a middle computer, a redundant power supply module and a charging and discharging probe board; the redundant power supply module comprises a plurality of power supply units, each power supply unit comprises a single power supply and a quick connection plate, the single power supply is inserted into the quick connection plate through a quick terminal, the quick connection plate is provided with an input power supply terminal, a direct current output terminal and a CAN bus terminal, the input power supply terminal is connected with an alternating current power supply, the direct current output terminals of all the quick connection plates are connected in parallel and then connected with a charge-discharge circuit, and the CAN bus terminal, a middle computer and an upper computer are sequentially connected; the charging and discharging probe board is provided with a charging and discharging circuit and a plurality of positive and negative probes connected with the charging and discharging circuit, and the battery core is connected with the positive and negative probes. Compared with the prior art, the utility model realizes the continuous operation and non-stop maintenance of the charge-discharge process of the battery cell, improves the utilization rate of equipment and has high efficiency.
Description
Technical Field
The utility model relates to a battery cell charging and discharging device, in particular to a battery cell charging and discharging device adopting a redundant power supply.
Background
In the manufacturing process of the lithium ion battery, formation is a very critical process, and mainly activates positive and negative substances in a battery cell in a charging and discharging mode, so that the self-discharging, charging and discharging performance and storage performance of the battery are improved. The capacity grading is to realize the capacity sorting and performance screening grading of the battery by charging and discharging the battery. The existing series formation and capacity division power supply system adopts an integrated power supply design, converts factory alternating current into direct current required by formation, and provides required electric energy for formation of a battery core.
In the use process of the series-connection formation and capacity-grading power cabinet, because the power modules adopt an integrated design, one power module is connected with one regional battery, if the power module breaks down and needs to be powered off for maintenance, the production area of the battery connected with the power module can cause production halt, and great economic loss is brought.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a battery cell charging and discharging device which can realize continuous operation and non-stop maintenance in the battery cell charging and discharging process, improve the utilization rate of equipment and has high efficiency.
The purpose of the utility model can be realized by the following technical scheme:
a cell charging and discharging device adopting a redundant power supply is used for charging and discharging a cell and comprises an upper computer, a middle computer, a redundant power supply module and a charging and discharging probe board;
the redundant power supply module comprises a plurality of power supply units, each power supply unit comprises a single power supply and a quick connection plate, the single power supply is inserted into the quick connection plate through a quick terminal, the quick connection plate is provided with an input power supply terminal, a direct current output terminal and a CAN bus terminal, the input power supply terminal is connected with an alternating current power supply, the direct current output terminals of all the quick connection plates are connected in parallel and then connected with a charge-discharge circuit, the CAN bus terminal is connected with a middle computer, and the middle computer is connected with an upper computer;
the charging and discharging probe board is provided with a charging and discharging circuit and a plurality of positive and negative probes connected with the charging and discharging circuit, and the battery core is connected with the positive and negative probes.
Furthermore, the charge and discharge circuit comprises a plurality of control sub-circuits which are sequentially connected in series and are connected with a plurality of positive and negative probes in a one-to-one correspondence manner.
Further, the control sub-circuit comprises a first electric control switch and a second electric control switch which are connected in parallel.
Furthermore, the battery core is connected in series with the first electric control switch through the anode and cathode probes.
Furthermore, the middle position machine is connected with the first electric control switch and the second electric control switch.
Furthermore, a power main switch is connected between the input power supply terminal and the alternating current power supply.
Furthermore, the middle position machine is connected with the battery core through a battery voltage sampling wire harness.
Furthermore, the middle position machine is connected with an indicator light for alarming.
Further, still include the power cabinet frame.
Further, all the single power supplies are arranged on the power supply cabinet frame side by side.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model relates to a battery cell charging and discharging device, which comprises an upper computer, a middle computer, a redundant power supply module and a charging and discharging probe board, wherein the redundant power supply module comprises a plurality of power supply units, each power supply unit comprises a single power supply and a quick connecting board, the single power supply is inserted on the quick connecting board through a quick terminal, the quick connecting board is provided with an input power supply terminal, a direct current output terminal and a CAN bus terminal, the input power supply terminal is connected with an alternating current power supply, the direct current output terminals of all the quick connecting boards are connected in parallel and then connected with a charging and discharging circuit, the CAN bus terminal is connected with the middle computer, the middle computer is connected with the upper computer, the charging and discharging probe board is provided with a charging and discharging circuit and a plurality of positive and negative probes connected with the charging and discharging circuit, a battery cell is connected with the positive and negative probes, the modular design is adopted, when one single power supply fails, the normal work of other single power supplies cannot be influenced, the single power supply with faults is cut out, the output power is automatically adjusted by the remaining single power supply, the total power of the whole power supply unit is kept unchanged, the single power supply and the quick connecting plate are connected by using the quick terminal by adopting a hot plug design, the power is not required to be cut off during maintenance, the continuous operation and non-stop maintenance in the charge-discharge process of the battery cell are realized, the utilization rate of equipment is improved, and the efficiency is high;
(2) the charging and discharging circuit comprises a plurality of control sub-circuits which correspond to the probes one by one and are sequentially connected in series, each control sub-circuit comprises a first electric control switch and a second electric control switch which are connected in parallel, the battery cells are connected with the first electric control switches in series through the positive probes and the negative probes, the middle computer is connected with the first electric control switches and the second electric control switches, the upper computer sends charging and discharging instructions to the middle computer, the middle computer receives the instructions and then controls the redundant power supply module to operate, if a certain battery cell is abnormal or reaches a cut-off condition in the operation process, the corresponding second electric control switch is closed, the corresponding first electric control switch is opened, the battery cell is isolated from the whole series circuit, and the other battery cells are still connected in series to operate normally, so that the degree of automation is high, and the safety is good;
(3) a power supply main switch is connected between an input power supply terminal and an alternating current power supply, and the switch of the whole battery cell charging and discharging process can be controlled through the power supply main switch;
(4) the host computer is connected with the battery cells through the battery voltage sampling wire harness, and collects voltage data of each battery cell 302 in real time, so that the monitoring of workers is facilitated;
(5) the host computer of the utility model is connected with an indicator light for alarming, if a single power supply fails, the indicator light gives an alarm to remind a worker to carry out fault maintenance;
(6) the utility model comprises the power cabinet frame, and all the single power supplies are arranged on the power cabinet frame side by side, so that the storage and the maintenance are convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a charge/discharge circuit;
FIG. 3 is an equivalent circuit diagram of the control sub-circuit;
the numbering in the figures illustrates:
100. the power supply cabinet comprises a power supply cabinet frame, 101 parts of a single power supply, 102 parts of a medium motor, 200 parts of a quick connection board, 201 parts of an input power supply terminal, 202 parts of a direct current output terminal, 203 parts of a CAN bus terminal, 301 parts of a charge and discharge circuit, 302 parts of a battery, 303 parts of a positive electrode probe and a negative electrode probe, 304 parts of a battery voltage sampling wiring harness, 305 parts of a direct current cable, 306 parts of a first electronic control switch, 307 parts of a second electronic control switch, 401 parts of a power supply main switch, 402 parts of a power supply cable, 403 parts of an upper computer and 404 parts of a communication network cable.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
A battery cell charging and discharging device adopting a redundant power supply is shown in figure 1 and is used for charging and discharging a battery cell 302 and comprises an upper computer 403, a middle computer 102, a redundant power supply module and a charging and discharging probe card;
the redundant power supply module comprises a power supply cabinet frame 100 and a plurality of power supply units, each power supply unit comprises a single power supply 101 and a quick connection board 200, all the single power supplies 101 are arranged on the power supply cabinet frame 100 side by side, a quick terminal is arranged on the quick connection board 200, the single power supply 101 is inserted on the quick connection board 200 through the quick terminal, as shown in fig. 2, an input power supply terminal 201, a direct current output terminal 202 and a CAN bus terminal 203 are arranged on the quick connection board 200, the input power supply terminal 201 is connected with a 380V alternating current power supply, the direct current output terminals 202 of all the quick connection boards 200 are connected with a charge-discharge circuit 301 after being connected in parallel, the CAN bus terminal 203 is connected with a middle position machine 102, and the middle position machine 102 is connected with an upper position machine 403;
the maximum power of the single power supply 101 is 30KW, and the maximum current is 100A.
The charging and discharging probe board is provided with a charging and discharging circuit 301 and a plurality of positive and negative probes 303 connected with the charging and discharging circuit 301, and the battery cell 302 is connected with the positive and negative probes 303.
A power supply main switch 401 is connected in series to a power supply cable 402 between the input power supply terminal 201 and the ac power supply.
The intermediate computer 102 is connected with the battery cells 302 through a battery voltage sampling wire harness 304, and collects voltage data of the battery cells 302 in real time, so that monitoring by workers is facilitated.
The central computer 102 is connected with an indicator light for alarming.
The working process of the battery cell charging and discharging device comprises the following steps:
when the power supply unit normally works, all the single power supplies 101 of all the power supply units are in a working state, any one of the single power supplies 101 can be used as a hot backup, the number of the single power supplies 101 is set to be N +1, the charging and discharging power of the battery cell 302 is set to be P, the output power of each single power supply 101 is set to be P/(N +1), if one single power supply 101 breaks down, the intermediate computer 102 is isolated through the quick connection plate 200, an indicator lamp gives an alarm, the output power of the remaining N single power supplies 101 is adjusted to be P/N, the output power of the whole power supply unit is kept unchanged and is continuously and normally used, the single power supply 101 which breaks down can be taken out of the quick connection plate for offline maintenance at any time, the quick connection plate 200 is inserted again after the maintenance is finished to serve as a hot backup module, the power supply unit circularly works in such a way, the continuous operation of the charging and discharging processes of the battery cell 302 is not influenced in the whole fault processing process, the equipment utilization rate is greatly improved.
Example 2
In this embodiment, the charging and discharging circuit 301 includes a plurality of control sub-circuits, which are sequentially connected in series and are connected to the plurality of positive and negative probes 303 in a one-to-one correspondence manner, as shown in fig. 3, and the control sub-circuit includes a first electrically controlled switch 306 and a second electrically controlled switch 307 connected in parallel.
The electric core 302 is connected with the first electric control switch 306 in series through the positive and negative probes 303, and the middle position machine 102 is connected with the first electric control switch 306 and the second electric control switch 307.
When the battery cells 302 are charged and discharged, the central computer 102 controls all the first electronic control switches 306 to be closed, all the second electronic control switches 307 to be opened, and the battery cells 302 are connected end to end and connected in series to form a series circuit through the direct current cable 305.
The upper computer 403 sends a charging and discharging instruction to the middle position machine 102, the middle position machine 102 receives the instruction and then controls the redundant power supply module to operate, if a certain electric core 302 is abnormal or reaches a cut-off condition in the operation process, the corresponding second electric control switch 307 is closed, the corresponding first electric control switch 306 is opened, the electric core 302 is isolated from the whole series circuit, and the rest electric cores 302 are still connected in series to operate normally.
The rest is the same as in example 1.
Embodiment 1 and embodiment 2 provide an adopt battery core charging and discharging device of redundant power supply, adopt the modularized design, when one of them single power 101 breaks down, can not influence the normal work of other single power 101, cut out the single power 101 that breaks down, remaining single power 101 adjusts output, maintain the total power of whole power supply unit unchangeable, adopt the hot plug design, use quick terminal to connect between single power 101 and the quick-connect board 200, need not cut off the power supply during maintenance, realize that battery core charging and discharging process continuous operation and maintenance do not shut down, improve equipment utilization, high efficiency.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The battery cell charging and discharging device adopting the redundant power supply is characterized by being used for charging and discharging a battery cell (302), and comprising an upper computer (403), a middle computer (102), a redundant power supply module and a charging and discharging probe card;
the redundant power supply module comprises a plurality of power supply units, each power supply unit comprises a single power supply (101) and a quick connection plate (200), the single power supply (101) is inserted into the quick connection plate (200) through a quick terminal, the quick connection plate (200) is provided with an input power supply terminal (201), a direct current output terminal (202) and a CAN bus terminal (203), the input power supply terminal (201) is connected with an alternating current power supply, the direct current output terminals (202) of all the quick connection plates (200) are connected in parallel and then connected with a charging and discharging circuit (301), the CAN bus terminal (203) is connected with a middle computer (102), and the middle computer (102) is connected with an upper computer (403);
the charging and discharging probe board is provided with a charging and discharging circuit (301) and a plurality of positive and negative probes (303) connected with the charging and discharging circuit (301), and the battery core (302) is connected with the positive and negative probes (303).
2. The battery cell charging and discharging device with the redundant power supply according to claim 1, wherein the charging and discharging circuit (301) comprises a plurality of control sub-circuits, and the plurality of control sub-circuits are sequentially connected in series and are connected with a plurality of positive and negative probes (303) in a one-to-one correspondence manner.
3. The battery cell charging and discharging device using a redundant power supply according to claim 2, wherein the control sub-circuit comprises a first electrically controlled switch (306) and a second electrically controlled switch (307) connected in parallel.
4. The battery cell charging and discharging device adopting the redundant power supply as claimed in claim 3, wherein the battery cell (302) is connected in series with the first electronic control switch (306) through the positive and negative probes (303).
5. The battery cell charging and discharging device adopting a redundant power supply according to claim 3, wherein the medium-sized motor (102) is connected with a first electrically controlled switch (306) and a second electrically controlled switch (307).
6. The battery cell charging and discharging device adopting the redundant power supply as claimed in claim 1, wherein a main power switch (401) is connected between the input power terminal (201) and the ac power supply.
7. The battery cell charging and discharging device adopting the redundant power supply as set forth in claim 1, wherein the central computer (102) is connected with the battery cell (302) through a battery voltage sampling harness (304).
8. The battery core charging and discharging device with the redundant power supply according to claim 1, wherein the central computer (102) is connected with an indicator light for alarming.
9. The battery cell charging and discharging device using a redundant power supply according to claim 1, further comprising a power cabinet frame (100).
10. The battery cell charging and discharging device adopting the redundant power supply as recited in claim 9, wherein all the single power supplies (101) are arranged side by side on the power cabinet frame (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122549295.6U CN217036768U (en) | 2021-10-22 | 2021-10-22 | Cell charging and discharging device adopting redundant power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122549295.6U CN217036768U (en) | 2021-10-22 | 2021-10-22 | Cell charging and discharging device adopting redundant power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217036768U true CN217036768U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122549295.6U Active CN217036768U (en) | 2021-10-22 | 2021-10-22 | Cell charging and discharging device adopting redundant power supply |
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| Country | Link |
|---|---|
| CN (1) | CN217036768U (en) |
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- 2021-10-22 CN CN202122549295.6U patent/CN217036768U/en active Active
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