High-power battery pack

Abstract

This invention provides a high-power battery pack, belonging to the field of battery technology. Its structure includes: protruding strips and elongated grooves on both outer walls of the battery cells; adjacent battery cells are connected by the protruding strips and elongated grooves; a top cover is fixedly connected to the top of the battery cells, and contacts are provided on the top cover; a cavity is provided inside the battery cells, and electrode groups are installed in the cavity; a busbar is installed on top of the electrode groups, and a terminal is provided on the busbar; an insulating sleeve is provided outside the terminal of the battery cell located in the middle of the slot, and the terminal is electrically connected to the contacts above it; the terminals of the battery cells located at both ends of the slot extend beyond the top cover. This invention improves the assembly structure between battery cells and adopts a concealed wiring mode. This invention has a compact structure, is easy to assemble, has neater wiring, and more stable overall operation.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically a high-power battery pack. Background Technology

[0002] A battery pack is a power supply device composed of multiple individual batteries connected in series or parallel. A single battery is usually called a cell, while the assembly of multiple cells is called a battery pack. The main function of a battery pack is to provide higher voltage or stronger current to meet the power demands of different devices. Output power is one of the key technical indicators of a battery pack, determining its short-term power output capability, which is crucial for the stable operation of large electric devices. To improve the power density of battery packs, one of the mainstream practices of battery manufacturers is to continuously increase the assembly density of individual battery cells. While this benefits the discharge performance of the battery pack, it places higher demands on the assembly structure. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: how to design a battery pack that is easy to assemble, compact in structure and stable.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A high-power battery pack includes battery cells, a casing, a top cover, baffles, electrode groups, busbars, ridges, slots, contacts, terminals, ribbon cables, and insulating sleeves. Several battery cells are arranged side-by-side in the casing. Ribs and slots are provided on the outer walls of both sides of each battery cell. Adjacent battery cells are connected by the ridges and slots. A top cover is fixedly connected to the top of each battery cell, and contacts are provided on the top cover. An internal cavity is provided within each battery cell, and electrode groups are installed in the cavity. A busbar is installed on top of the electrode groups, and terminals are provided on the busbar. An insulating sleeve is provided outside the terminals of the battery cells located in the middle of the casing, and these terminals are electrically connected to the contacts above them. The terminals of the battery cells located at both ends of the casing extend beyond the top cover. Baffles are fixedly covering the contacts, and terminals on the baffles electrically connect the contacts to the ribbon cables. Several ribbon cables electrically connect the individual battery cells.

[0006] Preferably, both the convex strip and the long groove have an Ω-shaped cross-section.

[0007] Preferably, there are six battery cells, and the interior of each of the six battery cells includes a first cavity, a second cavity, and a third cavity.

[0008] Preferably, the top cover includes a substrate, and the contacts are disposed on the substrate.

[0009] Preferably, the electrode group includes a positive electrode tab, a negative electrode tab, a separator, a positive electrode plate, and a negative electrode plate, wherein the positive electrode plate, the separator, and the negative electrode plate are arranged in sequence at intervals, a positive electrode tab is provided on the positive electrode plate, and a negative electrode tab is provided on the negative electrode plate.

[0010] Preferably, the outer casing of each battery cell is rectangular, and a positioning bracket is provided between the tank and the battery cell.

[0011] In the above technical solution, battery cells are arranged side by side to form the physical structure of the battery pack; the tank is used to support and fix the battery pack; the top cover is the top structure of the battery cell and is used to set the contacts; the battery cell has an internal cavity for installing the electrode group and electrolyte; the baffle is used to shield the contacts; the electrode group and busbar can adopt conventional construction; for adjacent battery cells, a combination of ridges and long slots can be used to ensure a relatively stable relative positional relationship between adjacent battery cells; the terminal is used to connect the contacts and the wiring, and several wirings connect the battery cells in series or in parallel to construct the overall structure of the battery pack; for the busbars of different battery cells, the terminal of the battery cell in the middle is provided with an insulating sleeve to ensure that it is only connected to the contacts, and the terminal of the battery cell at the end is directly exposed for wiring.

[0012] This invention provides a high-power battery pack. The technical solution improves the assembly structure between battery cells and adopts a concealed wiring pattern. This invention features a compact structure, convenient assembly, neater wiring, and more stable overall operation. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a perspective view of a single battery cell in this utility model;

[0016] Figure 4 This is a breakdown diagram of multiple battery cells in this utility model;

[0017] Figure 5 This is a perspective view of the pole group in this utility model;

[0018] Figure 6 This is a top view of the present invention after the electrode plate and busbar are installed.

[0019] Figure 7 This is a perspective view of the top cover in this utility model;

[0020] Figure 8 This is a perspective view of the terminal block and the baffle in this utility model;

[0021] In the picture:

[0022] Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, those skilled in the art will understand that with technological development and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0024] In the description of this application, it should be understood that, unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] Example 1

[0027] High-power battery packs, such as Figures 1-8As shown, the device includes a battery cell 1, a tank 2, a top cover 3, a baffle 4, an electrode group 5, a busbar 6, a protrusion 14, a long groove 15, a contact 31, a terminal 40, a ribbon cable 41, an insulating sheath 61, and a terminal 62. Several battery cells 1 are arranged side-by-side in the tank 2. Protrusions 14 and long grooves 15 are respectively provided on the outer walls of both sides of the battery cell 1. For two adjacent battery cells 1, they are connected by the protrusions 14 and long grooves 15. A top cover 3 is fixedly connected to the top of the battery cell 1, and a contact 31 is provided on the top cover 3. Inside the battery cell 1... A cavity is provided, in which a group of electrodes 5 is installed. A busbar 6 is installed on top of the group of electrodes 5. A terminal 62 is provided on the busbar 6. An insulating sleeve 61 is provided outside the terminal 62 of the battery cell 1 located in the middle of the tank 2. The terminal 62 is electrically connected to the contact 31 above it. The terminal 62 of the battery cell 1 located at both ends of the tank 2 extends beyond the top cover 3. A baffle 4 is fixedly covered outside the contact 31. The terminal 40 on the baffle 4 electrically connects the contact 31 to the ribbon cable 41. Several ribbon cables 41 electrically connect each battery cell 1.

[0028] In the above technical solution, the battery cells 1 are arranged side by side to form the physical structure of the battery pack; the tank 2 is used to support and fix the battery pack; the top cover 3 is the top structure of the battery cell 1 and is used to set the contact 31; the battery cell 1 has an internal cavity and is used to install the electrode group 5 and electrolyte; the baffle 4 is used to shield the contact 31; the electrode group 5 and the busbar 6 can adopt conventional construction; for adjacent battery cells 1, the protrusion 14 and the long groove 15 can be used to ensure that the relative positional relationship between adjacent battery cells 1 is relatively stable; the terminal 40 is used to connect the contact 31 and the ribbon cable 41, and several ribbon cables 41 connect each battery cell 1 in series or in parallel to construct the overall structure of the battery pack; for the busbar 6 of different battery cells 1, the terminal 62 of the battery cell 1 in the middle is provided with an insulating sleeve 61 to ensure that it is only connected to the contact 31, and the terminal 62 of the battery cell 1 at the end is directly passed through for wiring.

[0029] Example 2

[0030] High-power battery packs, such as Figures 1-8As shown, the device includes a battery cell 1, a tank 2, a top cover 3, a baffle 4, an electrode group 5, a busbar 6, a protrusion 14, a long groove 15, a contact 31, a terminal 40, a ribbon cable 41, an insulating sheath 61, and a terminal 62. Several battery cells 1 are arranged side-by-side in the tank 2. Protrusions 14 and long grooves 15 are respectively provided on the outer walls of both sides of the battery cell 1. For two adjacent battery cells 1, they are connected by the protrusions 14 and long grooves 15. A top cover 3 is fixedly connected to the top of the battery cell 1, and a contact 31 is provided on the top cover 3. Inside the battery cell 1... The device includes a cavity in which a group of electrodes 5 is installed. A busbar 6 is installed on top of the electrode group 5, and a terminal 62 is provided on the busbar 6. An insulating sleeve 61 is provided outside the terminal 62 of the battery cell 1 located in the middle of the tank 2. The terminal 62 is electrically connected to the contact 31 above it. The terminal 62 of the battery cell 1 located at both ends of the tank 2 extends beyond the top cover 3. A baffle 4 is fixedly covered outside the contact 31. The terminal 40 on the baffle 4 electrically connects the contact 31 to the ribbon cable 41. Several ribbon cables 41 electrically connect each battery cell 1. The cross-sectional shape of the ridge 14 and the long groove 15 is Ω-shaped. There are six battery cells 1, and the interior of each battery cell 1 includes a first cavity 11, a second cavity 12, and a third cavity 13. The top cover 3 includes a base plate 32, and the contact 31 is disposed on the base plate 32. The electrode group 5 includes a positive electrode tab 51, a negative electrode tab 52, a separator 53, a positive electrode plate, and a negative electrode plate, wherein the positive electrode plate, separator 53, and negative electrode plate are arranged alternately in sequence. A positive electrode tab 51 is provided on the positive electrode plate, and a negative electrode tab 52 is provided on the negative electrode plate. The outer shell of the battery cell 1 is all rectangular, and a positioning bracket is provided between the tank 2 and the battery cell 1.

[0031] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0032] It should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art can certainly extract some of the features as individual embodiments when reading this application.

[0033] It should be understood that the embodiments disclosed herein are illustrative of the principles of this application. Other modified embodiments are also within the scope of this application. The embodiments disclosed herein are merely examples and not limitations, and the embodiments of this application are not limited to the embodiments precisely described above.

Claims

1. A high power battery pack characterized by The system includes a battery cell (1), a tank (2), a top cover (3), a baffle (4), a group of electrodes (5), a busbar (6), a ridge bar (14), a long groove (15), a contact (31), a terminal block (40), a ribbon cable (41), an insulating sheath (61), and a terminal block (62). Several battery cells (1) are arranged side by side in the tank (2). A ridge bar (14) and a long groove (15) are respectively provided on the outer walls of both sides of the battery cell (1). For two adjacent battery cells (1), they are connected by the ridge bar (14) and the long groove (15). A top cover (3) is fixedly connected to the top of the battery cell (1). A contact (31) is provided on the top cover (3). Inside the battery cell (1) The part is provided with a cavity, in which a group of electrodes (5) is installed. A busbar (6) is installed on the top of the group of electrodes (5). A terminal (62) is provided on the busbar (6). An insulating sleeve (61) is provided outside the terminal (62) of the battery cell (1) located in the middle of the tank (2). The terminal (62) is electrically connected to the contact (31) above it. The terminal (62) of the battery cell (1) located at both ends of the tank (2) extends beyond the top cover (3). A baffle (4) is fixedly covered outside the contact (31). A terminal (40) on the baffle (4) electrically connects the contact (31) to the ribbon cable (41). Several ribbon cables (41) electrically connect each battery cell (1).

2. The high-power battery pack of claim 1, wherein, The cross-sectional shape of both the convex strip (14) and the long groove (15) is Ω-shaped.

3. The high-power battery pack of claim 1, wherein, There are six battery cells (1), and the interior of each battery cell (1) includes a first cavity (11), a second cavity (12) and a third cavity (13).

4. The high-power battery pack of claim 1, wherein, The top cover (3) includes a substrate (32) and contacts (31) are disposed on the substrate (32).

5. The high-power battery pack according to claim 1, characterized in that, The electrode group (5) includes a positive electrode tab (51), a negative electrode tab (52), a separator (53), a positive electrode plate, and a negative electrode plate. The positive electrode plate, the separator (53), and the negative electrode plate are arranged in sequence at intervals. A positive electrode tab (51) is provided on the positive electrode plate, and a negative electrode tab (52) is provided on the negative electrode plate.

6. The high-power battery pack of claim 1, wherein, The outer shell of each battery cell (1) is rectangular, and a positioning bracket is provided between the tank (2) and the battery cell (1).

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