Dynamic battery equalization device and electric vehicle
A battery balancing and battery technology, applied in electric vehicles, battery/fuel cell control devices, vehicle energy storage, etc., can solve the problems of high cost, large volume, complex structure, etc., achieve simple structure, achieve cross-group balance, volume small effect
Pending Publication Date: 2020-03-31
重庆广亿源电池有限公司
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Problems solved by technology
[0003] In the long-term research and development process, the inventor of the present application found that the equalization circuit components used in the equalization system of the battery pack in the prior art are numerous, complex in structure, large in size and high in cost, and are not suitable for daily use
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the 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. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0018] see Figure 1-3 , figure 1 is a schematic structural diagram of an embodiment of a dynamic battery balancing device of the present application, figure 2 yes figure 1 Schematic diagram of the local structure of the switch assembly, image 3 yes figure 2 Schematic diagram of the local structure of the first contact in .
[0019] The dynamic battery balancing device 10 is connected to the battery pack 2 , and the battery pack 2 includes a plurality ...
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The invention provides a dynamic battery equalization device and an electric vehicle. The dynamic battery equalization device is connected with a battery pack, the battery pack comprises a plurality of batteries connected in series, and the dynamic battery equalization device comprises a monitor respectively connected with the plurality of batteries; a motorized battery; a switch assembly; a controller. The switch assembly comprises a plurality of first contacts arranged in a straight line, a guide rail, a connecting piece and a second contact, wherein the controller is used for controlling the connecting piece to move along the guide rail, so that the other end of the connecting piece is selectively connected with the first contact, and the maneuvering battery balances the battery to be equalized. By means of the mode, the maneuvering batteries can be made to selectively balance the batteries to be balanced through the switch assembly, the two parallel battery packs can be balanced atthe same time, and then cross-pack balance is achieved.
Description
technical field [0001] The present application relates to the technical field of battery balancing, in particular to a dynamic battery balancing device and an electric vehicle. Background technique [0002] Both electric vehicles and hybrid vehicles require battery packs as energy storage systems. A battery pack usually consists of multiple cells connected in series. Due to various factors in the battery manufacturing process and use process, there may be inconsistencies in the remaining power values between the batteries connected in series. Imbalances between cells reduce the usable capacity of the entire battery pack. At present, most of the battery balancing systems on electric vehicles match a set of balancing circuits for each battery unit to balance bad batteries. [0003] During the long-term research and development process, the inventors of the present application found that the equalization circuit components used in the equalization system of the battery pac...
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IPC IPC(8): B60L58/22
CPCY02T10/70
Inventor 胡林玉余晓华王海洋
Owner 重庆广亿源电池有限公司