Battery pack balancing method and device based on wireless charging
A technology of equalization device and wireless charging, applied in battery circuit devices, circuit devices, charge equalization circuits, etc., can solve problems such as battery cell inconsistency, battery pack safety impact, etc., to facilitate equalization processing, improve efficiency, and reduce work. amount of effect
Inactive Publication Date: 2019-09-06
北京市亿微科技有限公司
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Problems solved by technology
These battery packs are usually formed by connecting multiple battery cells in series and parallel, and different battery cells will have imbalance due to individual differences in the process of charging and discharging, resulting in inconsistency of each battery cell, such inconsistency in During use, it will affect the safety of the overall battery pack
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.
[0038] It should ...
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The invention provides a battery pack balancing method and device based on wireless charging, and relates to the technical field of battery management. According to the battery pack balancing method based on the wireless charging provided by an embodiment of the invention, through voltage balancing equipment comprising a first power conversion module and a receiving coil, when the receiving coil generates an induced current and a single battery corresponding to the receiving coil is in a state that a voltage of the single battery is lower than a preset voltage, voltage balancing is carried outon the single battery with the abnormal voltage, so that the voltage of the single battery in a battery pack can be kept in a relatively balanced state. According to the battery pack balancing method, a wireless charging form is used, so that the operation of connecting a charging line is reduced, the efficiency of battery balancing operation is improved, the workload of workers is reduced, the operation process is safer and more reliable, and the single battery in the battery pack can be balanced conveniently.
Description
technical field [0001] The present application relates to the field of battery management, in particular, to a method and device for equalizing battery packs based on wireless charging. Background technique [0002] Electric energy is widely used as an energy source, and more and more products use batteries as energy sources or use batteries for energy storage. For example, electric vehicles use battery packs as a power source, and new energy power stations use battery packs to store electricity generated by solar and wind energy. These battery packs are usually formed by connecting multiple battery cells in series and parallel, and different battery cells will have imbalance due to individual differences in the process of charging and discharging, resulting in inconsistency of each battery cell, such inconsistency in During use, it will affect the safety of the overall battery pack. Therefore, there is an urgent need for a solution that can realize the balance of the batt...
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IPC IPC(8): H02J7/00H02J50/40
CPCH02J7/0018H02J7/0022H02J7/025H02J50/40
Inventor 时玮
Owner 北京市亿微科技有限公司