Charge-discharge device jointly used by multiple storage battery

A technology for charging and discharging devices and battery packs, which is applied in the direction of battery circuit devices, circuit devices, and the arrangement of multiple synchronous batteries. cost effect

Inactive Publication Date: 2017-01-11
北京正合盛技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on the above description, due to the restriction that batteries of different specifications cannot be mixed, on the one hand, users need to purchase brand new batteries to ensure the uninterrupted operation of the main equipment. Serious waste

Method used

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  • Charge-discharge device jointly used by multiple storage battery
  • Charge-discharge device jointly used by multiple storage battery
  • Charge-discharge device jointly used by multiple storage battery

Examples

Experimental program
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Embodiment Construction

[0030] Such as figure 1 As shown, the shared charging and discharging device for multiple battery packs provided by the embodiment of the present invention includes:

[0031] A DC busbar, the output interface of the negative electrode 10 of the DC busbar is connected to at least two charging and discharging DC-DC units 11, and the charging and discharging DC-DC unit is used to connect to the input interface of the battery;

[0032] A rectifier connected to the charging and discharging DC-DC unit through the DC busbar, and each of the charging and discharging DC-DC units is connected to one of the rectifiers;

[0033] A control unit, the signal input end of the control unit is connected to the charging and discharging DC-DC unit 11 for detecting the signal of the charging and discharging DC-DC unit 11, and the control unit is connected to the charging and discharging unit through a CAN bus The DC-DC unit 11 communicates.

[0034] Preferably, as Figure 4 As shown, a communic...

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PUM

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Abstract

The invention provides a charge-discharge device jointly used by multiple storage battery,including DC bus: the output interface of negative pole of DC bus connects at least two charge-discharge DC-DC units and the charge-discharge DC-DC unit is used for connection with input interface of storage battery; rectifier:the rectifier connects the charge-discharge DC-DC unit through DC bus and each charge-discharge DC-DC unit connects a rectifier; and control unit: the signal input end of control unit connects the charge-discharge DC-DC unit for detecting the signal of charge-discharge DC-DC unit and the control unit communicates with the charge-discharge DC-DC unit through CAN bus.By this device, the storage battery with different specifications can be connected into DC bus in parallel without worrying the damages of storage battery on this account, so as to avoid the restriction of parallel connection for storage battery with the same specification and fully use the current storage battery to reduce the operation cost of power supply system.

Description

technical field [0001] The invention relates to the technical field of storage battery charging, in particular to a charging and discharging device shared by multiple storage battery groups. Background technique [0002] At present, the DC power supply system has strict requirements on the configuration of battery packs. All batteries configured in the same DC system should use battery packs of the same brand, model or even the same batch, so as to reduce the performance difference between battery packs or single cells. Adverse effects on the safe operation of the power supply system. For example, two sets of batteries with different capacities of 500Ah and 100Ah are not allowed to be used in parallel, otherwise, the performance degradation of one of the batteries will be accelerated. Finally, it will lead to the disorder of the operation of the DC power supply system and cause safety accidents. For the same reason, when the battery capacity cannot meet the safe operation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0013H02J7/0063
Inventor 李新领
Owner 北京正合盛技术有限公司
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