A battery pack charging and discharging device
A technology for charging and discharging devices and battery packs, applied in battery circuit devices, circuit devices, charge equalization circuits, etc., can solve problems such as unbalanced battery series connection, and achieve the effects of small size, cost saving and high efficiency
Active Publication Date: 2022-07-29
FSP POWERLAND TECH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a high-efficiency battery pack charging and discharging device. The technical solution of the present invention is to set up a battery optimizer for each battery, which solves the problem of unbalanced battery series connection
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] In order to make the purpose and technical solutions of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0044] figure 1 A block diagram showing a first embodiment of a battery pack charging and discharging device of the present invention. like figure 1 As shown, a battery pack charging and discharging device 100 includes a first battery pack 11 in series, a first switch circuit 12, a switch S1, a second battery pack 21 in series, a second switch circuit 22, a s...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a battery pack charging and discharging device, comprising a first battery pack in series, a first switch circuit, a second battery pack in series, a second switch circuit, a first switch, a first inductor, and a second switch. A switch circuit is connected in parallel with the first series battery pack, the output terminal of the first switch circuit is connected to the first terminal of the first inductor through the first switch, and the second switch circuit is connected to the first terminal of the first inductor. Two battery packs in series are connected in parallel, the output end of the second switch circuit is connected to the first end of the first inductor through the second switch, the second end of the first inductor is connected to the first AC end, and the The series midpoint of the first series-connected battery pack and the second series-connected battery pack is connected to the second AC terminal. The charging and discharging circuit of the present invention is simple and easy to control, and achieves high efficiency.
Description
technical field [0001] The present invention relates to the field of battery charging, and in particular to a high-efficiency battery pack charging and discharging device. Background technique [0002] Compared with a single battery, battery packs are widely used in electric vehicles, grids and electricity because they can provide higher voltage and larger capacity. In the production process, due to the limited manufacturing equipment and manufacturing process, it is difficult to keep the performance parameters of a single battery consistent. During the charging and discharging process, due to the difference in voltage and capacity between individual cells, the problem of unbalanced charging and discharging of the battery pack is caused. This imbalance will result in battery aging, shortened battery life, and low energy utilization efficiency. [0003] In order to ensure the safe use of the battery pack, a battery optimizer is usually added to the battery pack in practical...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/06H02M7/72
CPCH02J7/0019H02J7/06H02M7/72H02J2207/20
Inventor 徐明孙巨禄
Owner FSP POWERLAND TECH