CN-224204289-U - Battery device and electricity utilization device

Abstract

The application is suitable for the technical field of batteries, and provides a battery device and an electricity utilization device. The battery device comprises a high-voltage box and two battery modules distributed along a first direction, wherein each battery module comprises a plurality of battery cells arranged in an array, each row of battery cells is arranged along the first direction, each row of battery cells is arranged along a second direction in any battery module, the positive and negative poles of all battery cells in the same row are identical in distribution, the positive and negative poles of the battery cells in adjacent rows are opposite in distribution, all battery cells of the two battery modules are electrically connected to form a total positive output pole and a total negative output pole, the total positive output pole and the total negative output pole are respectively arranged on the two battery modules and are respectively arranged on the two adjacent battery cells along the first direction, and the total positive output pole and the total negative output pole are respectively connected with the high-voltage box through output buses. The battery device and the power utilization device provided by the application can improve the space utilization rate of the battery device.

Inventors

• XIE SHUGUANG
• LIU GENGSHENG

Assignees

• 宁德时代新能源科技股份有限公司

Dates

Publication Date

20260505

Application Date

20250327

Priority Date

20241126

Claims (19)

1. 1. The battery device is characterized by comprising a high-voltage box and two battery modules distributed along a first direction, wherein each battery module comprises a plurality of battery cells arranged in an array, and the positive electrode and the negative electrode of any battery cell are distributed at intervals along the first direction; In any one of the battery modules, each column of the battery cells is arranged along the first direction, and each row of the battery cells is arranged along a second direction, wherein the second direction is crossed with the first direction; In any battery module, the positive and negative electrode distribution of all the battery cells in the same column are the same, and the positive and negative electrode distribution of the battery cells in adjacent columns are opposite; The battery module comprises a plurality of battery cells, a plurality of battery modules, a plurality of output buses, a plurality of high-voltage boxes, a plurality of battery cells, a plurality of output buses, a plurality of output electrodes, a plurality of output buses, a plurality of output electrodes and a plurality of output electrodes.
2. 2. The battery device according to claim 1, wherein the positive and negative electrode distributions of all the battery cells of both the battery modules are the same, and the total positive output electrode and the total negative output electrode are disposed adjacently.
3. 3. The battery device of claim 2, wherein all of the battery cells in each of the battery modules are connected in series, and two of the battery modules are connected in series.
4. 4. The battery device according to claim 3, wherein at least one of the battery modules has one column number and a plurality of row numbers, and wherein all of the battery cells are sequentially connected in series through the first bus bar disposed along the first direction in the battery module having the one column number and the plurality of row numbers.
5. 5. The battery device according to claim 3, wherein at least one of the battery modules has one row number and a plurality of columns, and wherein all of the battery cells are sequentially connected in series through the first bus bars arranged in the second direction in the battery modules having the one row number and the plurality of columns.
6. 6. The battery device according to claim 3, wherein at least one of the battery modules has a plurality of rows and columns, and wherein the battery cells in the same column are sequentially connected in series by the first bus bars arranged in the first direction to form a series module, and wherein all of the series modules are sequentially connected in series by the first bus bars arranged in the second direction.
7. 7. The battery device according to claim 5 or 6, wherein all the battery cells are arranged in a two-dimensional matrix, and two of the battery modules are arranged side by side or side by side.
8. 8. The battery device according to claim 7, wherein the number of columns of the two battery modules is even and the same, and serial poles of the two battery modules are adjacently arranged and connected by a second bus bar, the serial poles being electrodes to which the battery module is connected with the other battery module.
9. 9. The battery device according to claim 7, wherein the number of columns of the two battery modules is odd and the same, and the serial poles of the two battery modules are respectively arranged at both ends of the same column or the same row and are connected by a second bus bar, and the serial poles are electrodes for connecting the battery module with another battery module.
10. 10. The battery device according to claim 9, further comprising a case, wherein the high-voltage case and the battery module are both provided in the case, and wherein the second bus bar is placed on a side wall of the case.
11. 11. The battery device according to any one of claims 1 to 6, wherein the number of columns of two of the battery modules is the same or different, and/or the number of rows of two of the battery modules is the same or different.
12. 12. The battery device of any one of claims 1-6, wherein a spacing between the total positive output pole and the total negative output pole is less than a spacing between two electrodes on the high voltage cartridge.
13. 13. The battery device of any one of claims 1-6, wherein the output buss bar comprises an aluminum bar and a copper bar connected to each other, the aluminum bar being connected to the battery cell and the copper bar being connected to the high voltage box.
14. 14. The battery device of claim 13, wherein the copper bar comprises a hard copper bar and a soft copper bar connected to each other, the hard copper bar being connected to the aluminum bar, the soft copper bar being connected to the high voltage box.
15. 15. The battery device of claim 14, wherein the aluminum bar, the hard copper bar, and the soft copper bar are welded in sequence.
16. 16. The battery device of claim 14, wherein a spacing between the total positive output electrode and the total negative output electrode is less than a spacing between two electrodes on the high voltage cartridge, the soft copper bar being of a bent configuration.
17. 17. The battery device of claim 13, wherein the aluminum bar is duralumin bar.
18. 18. The battery device of any one of claims 1-6, wherein the output buss is connected to the electrode of the high voltage box by a fastener.
19. 19. An electrical device comprising a battery device according to any one of claims 1-18 for providing electrical energy.

Description

Battery device and electricity utilization device The application is required to submit the national intellectual property office and the application number to be 2024, 11 and 26 days 202411697981.X, priority of chinese patent application entitled "battery device and electric device", the entire contents of which are incorporated herein by reference. Technical Field The application belongs to the technical field of batteries, and particularly relates to a battery device and an electric device. Background In the current high-voltage connection technology, a total positive output electrode and a total negative output electrode, which are used for being connected with a high-voltage box, in a battery module are positioned at two ends of the same row or the same column of the battery module. The total positive output pole and the total negative output pole are connected with a high-voltage box in the battery device through long copper bars or long aluminum bars. The existence of the long copper bar or the long aluminum bar occupies the internal space of the battery device, and the space utilization rate of the battery device is reduced. Disclosure of utility model In view of the above, the present application provides a battery device and an electric device, which aim to improve the space utilization of the battery device. In a first aspect, the embodiment of the application provides a battery device, which comprises a high-voltage box and two battery modules distributed along a first direction, wherein each battery module comprises a plurality of battery cells arranged in an array, positive poles and negative poles of any battery cell are distributed at intervals along the first direction, each row of battery cells are distributed along a second direction in any battery module along the first direction, the second direction is arranged in a crossing manner with the first direction, positive poles and negative poles of all battery cells in the same row are distributed identically, positive poles and negative poles of all battery cells in adjacent rows are distributed inversely, all battery cells of two battery modules are electrically connected to form a total positive output pole and a total negative output pole, the total positive output pole and the total negative output pole are respectively arranged on two battery modules and are arranged on two adjacent battery cells along the first direction, and the total positive output pole and the total negative output pole are respectively connected with the high-voltage box through an output busbar. According to the battery device provided by the embodiment of the application, the connection mode of the battery cells in the battery device is changed, so that the total positive output electrode and the total negative output electrode of the battery module formed by all the battery cells are positioned on two adjacent battery cells and are not positioned at two ends of the same row any more, so that the distance between the total positive output electrode and the total negative output electrode is smaller, and therefore, the high-voltage box can be arranged adjacent to the total positive output electrode and the total negative output electrode, the length of the output bus between the high-voltage box and the total positive output electrode and/or the total negative output electrode is smaller, the output bus occupies smaller space, and the space utilization rate of the battery device is improved to a certain extent. In some embodiments, all of the battery cells of the two battery modules have the same positive and negative distribution, and the total positive output pole and the total negative output pole are disposed adjacent. By adopting the scheme provided by the embodiment, compared with the arrangement between the total positive output pole and the total negative output pole, the distance between the total positive output pole and the total negative output pole can be further reduced, so that the length of the output bus bar between the high-voltage box and the total positive output pole and/or the total negative output pole can be further reduced, the output bus bar is further reduced, and the space utilization rate of the battery device is improved to a certain extent. In some embodiments, all of the battery cells in each battery module are connected in series, and two battery modules are connected in series. All the battery monomers are connected in series, so that the electric quantity of the battery device is larger, and the use requirement of a large-electric-quantity use environment can be met. In some embodiments, at least one of the battery modules has one column number and a plurality of column numbers, and all of the battery cells are sequentially connected in series through the first bus bars arranged along the first direction. By adopting the scheme provided by the embodiment, in the battery module with one column number, the length of the first bu