Battery pack and vehicle with same

Abstract

The utility model discloses a battery pack and a vehicle with the same, the battery pack comprises a battery pack, the battery pack comprises two battery cell groups arranged at intervals along a third direction, each battery cell group comprises a plurality of battery cells arranged in a second direction, and the second direction is perpendicular to the third direction; and the number of the acquisition circuit boards is multiple, each battery cell group corresponds to at least one acquisition circuit board, and the multiple corresponding acquisition circuit boards in the same battery pack are located on the sides, close to each other, of the two battery cell groups respectively. According to the battery pack disclosed by the utility model, the battery pack comprises the two battery core groups which are arranged at intervals along the third direction, and the plurality of acquisition circuit boards in the same battery pack are respectively positioned on the sides, close to each other, of the two battery core groups, so that the daisy chain line length of the acquisition circuit boards can be simplified, and the length of a low-voltage wire harness is reduced; and the requirement on the constraint wire harness is relatively reduced, so that the wiring in the battery pack is cleaner and tidier, the safety and reliability of the battery pack are improved, and the potential safety hazard of the battery pack is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a battery pack and a vehicle having the same. Background Art

[0002] In the related art, due to the large number of components in the battery pack, the long and large number of lines, and the messy routing between components, there are certain safety hazards, and the safety and reliability of the battery pack cannot be guaranteed. Utility Model Content

[0003] In order to solve the problem of messy wiring of battery packs in the prior art, the utility model provides a battery pack.

[0004] The utility model also provides a vehicle, which comprises the above-mentioned battery pack.

[0005] The battery pack according to the embodiment of the utility model includes: a battery pack, the battery pack includes two battery cell groups arranged at intervals along a third direction, each of the battery cell groups includes a plurality of battery cells arranged in a second direction, and the second direction is perpendicular to the third direction; a collection circuit board, there are multiple collection circuit boards, each of the battery cell groups corresponds to at least one of the collection circuit boards, and the corresponding multiple collection circuit boards in the same battery pack are respectively located on one side of the two battery cell groups close to each other.

[0006] According to the battery pack of the embodiment of the utility model, the battery pack includes two battery cell groups spaced apart along a third direction, each battery cell group corresponds to at least one acquisition circuit board, and the corresponding multiple acquisition circuit boards in the same battery pack are respectively located on one side of the two battery cell groups close to each other. This can simplify the daisy chain line length of the acquisition circuit board, reduce the length of the low-voltage wiring harness, and relatively reduce the requirements for constraining the wiring harness, so that the wiring in the battery pack is cleaner and tidier, thereby improving the safety and reliability of the battery pack and reducing the potential safety hazards of the battery pack.

[0007] In addition, the battery pack according to the utility model may also have the following additional technical features:

[0008] In some embodiments, the battery pack is a plurality of batteries stacked in a first direction, and the third direction, the second direction and the first direction are perpendicular to each other.

[0009] In some embodiments, the battery pack further includes: a BDU module, wherein the BDU module is disposed on one side of the second direction of the plurality of battery packs, and among two adjacent battery packs, the total current input pole of one battery pack and the total current output pole of the other battery pack are both connected to the BDU module so that the two adjacent battery packs are connected in series through the BDU module, and the second direction is perpendicular to the first direction.

[0010] In some embodiments, the battery cells of a plurality of the battery packs have the same layout.

[0011] In some embodiments, the multiple battery cells in each battery cell group are connected in series, and the multiple battery cell groups in the same battery pack are connected in series.

[0012] In some embodiments, each of the battery cells has a positive electrode and a negative electrode disposed at two ends of the third direction, and the positive electrodes of two adjacent battery cells in the same battery cell group are located at two opposite ends of the third direction.

[0013] In some embodiments, each of the battery cells has a positive electrode and a negative electrode arranged at both ends of the third direction, and the two adjacent battery cell groups in the same battery pack are respectively the first battery cell group and the second battery cell group, and the two battery cells opposite to each other in the third direction are respectively the first battery cell and the second battery cell, and the positive electrodes of the first battery cell and the second battery cell are located at opposite ends of the third direction.

[0014] In some embodiments, two adjacent battery cell groups in the same battery pack are connected via a first connecting row.

[0015] In some embodiments, the first connecting row is located on a side of the battery pack away from the BDU module, and the corresponding first connecting rows in a plurality of the battery packs have the same extension direction, are flush at both ends in the length direction, and are relatively arranged in the first direction.

[0016] In some embodiments, a total current input terminal and a total current output terminal of each battery pack are located at one end of the battery pack close to the BDU module.

[0017] In some embodiments, the battery pack further includes: a rear-drive high-voltage port, which is disposed on a side of the plurality of battery packs away from the BDU module and is connected to the BDU module via a second connecting row.

[0018] In some embodiments, projections of the first connecting row and the second connecting row on a plane perpendicular to the first direction have no intersection.

[0019] The utility model also provides a vehicle having the above embodiment.

[0020] According to the vehicle of the embodiment of the utility model, by being provided with the above-mentioned battery pack, the battery pack includes two battery cell groups spaced apart along a third direction, each battery cell group corresponds to at least one acquisition circuit board, and the corresponding multiple acquisition circuit boards in the same battery pack are respectively located on one side of the two battery cell groups close to each other, which can simplify the daisy chain line length of the acquisition circuit board, reduce the length of the low-voltage wiring harness, and relatively reduce the requirements for constraining the wiring harness, so that the wiring in the battery pack is cleaner and tidier, thereby improving the safety and reliability of the battery pack and reducing the potential safety hazards of the battery pack.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a three-dimensional diagram of a battery pack according to an embodiment of the utility model from a first angle;

[0024] Figure 2 is a perspective view of a battery pack according to an embodiment of the utility model from a second angle;

[0025] Figure 3 is a three-dimensional diagram of a battery pack according to an embodiment of the utility model from a third angle;

[0026] Figure 4 is a perspective view of a battery pack according to an embodiment of the present utility model from a fourth angle, wherein the BDU module is not shown;

[0027] Figure 5 is a circuit diagram of a battery pack according to an embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the connection between the battery group and the BDU module of the battery pack according to an embodiment of the utility model.

[0029] Reference numerals:

[0030] 100. Battery pack;

[0031] 1. Battery pack; 11. Cell pack; 111. Cell; 12. Current total input pole; 121. First current total input pole; 122. Second current total input pole; 13. Current total output pole; 131. First current total output pole; 132. Second current total output pole; 14. First connecting bar; 15. Second connecting bar; 16. Connecting piece; 17. First battery pack; 18. Second battery pack;

[0032] 2. BDU module;

[0033] 3. Rear drive high pressure port;

[0034] 4. Collect circuit boards. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] A battery pack 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0040] like Figure 1 and Figure 2As shown, the battery pack 100 according to the embodiment of the present utility model includes a battery group 1 and a collection circuit board 4.

[0041] Specifically, refer to the attached Figure 1 and attached Figure 5 As shown, the battery pack 1 includes a Figure 1 As shown in FIG. 1 , two battery cell groups 11 are spaced apart from each other, each battery cell group 11 includes two battery cell groups 11 in the second direction (see FIG. Figure 1 The multiple battery cells 111 are arranged in the front-to-back direction (as shown in the second direction) and the second direction is perpendicular to the third direction, so that the number of battery cells 111 in the battery pack 100 can be increased, the battery cells 111 can be arranged more compactly in the battery pack 100, the space utilization of the battery pack 100 in the second direction and the third direction is improved, the energy density of the battery pack 100 is increased, and the cruising range is improved to meet the user's usage needs.

[0042] For example, the number of the battery cells 111 arranged in the second direction in each battery cell group 11 may be two, four, six, eight or ten.

[0043] Optionally, the battery cell 111 can be a short battery cell or a long battery cell. It should be noted that short battery cells and long battery cells have clear definitions in this field. A short battery cell is a battery cell whose length does not exceed a first preset value, and a long battery cell is a battery cell whose length exceeds a second preset value. The above-mentioned first preset value and second preset value may be equal or unequal, and even the first preset value may be greater than the second preset value. Exemplarily, the length of a short battery cell may be 400mm-900mm, and the length of a long battery cell may be 600mm-1200mm.

[0044] In some embodiments, the length of each battery cell 111 may be 400 mm-900 mm, that is, each battery cell 111 may be a short battery cell, and two battery cell groups 11 are arranged side by side to increase the arrangement density of the battery cells 111 .

[0045] Further, see Attachment Figure 1 and attached Figure 2 As shown, the acquisition circuit board 4 is used for low-voltage signal acquisition. There are multiple acquisition circuit boards 4, and each battery cell group 11 corresponds to at least one acquisition circuit board 4. The corresponding multiple acquisition circuit boards 4 in the same battery pack 1 are respectively located on the side close to each other of the two battery cell groups 11, which can simplify the daisy chain line length of the acquisition circuit board 4, reduce the length of the low-voltage wiring harness, and relatively reduce the requirements for constraining the wiring harness, so that the wiring in the battery pack 100 is cleaner and tidier, thereby improving the safety and reliability of the battery pack 100 and reducing the safety hazards of the battery pack 100.

[0046] According to the battery pack 100 of the embodiment of the utility model, the battery pack 1 includes two battery cell groups 11 arranged at intervals along a third direction, each battery cell group 11 corresponds to at least one acquisition circuit board 4, and the corresponding multiple acquisition circuit boards 4 in the same battery pack 1 correspond to the two battery cell groups 11 one by one and are respectively located on the side of the two battery cell groups 11 close to each other, which can simplify the daisy chain line length of the acquisition circuit board 4, reduce the length of the low-voltage wiring harness, and relatively reduce the requirements for constraining the wiring harness, so that the wiring in the battery pack 100 is cleaner and tidier, thereby improving the safety and reliability of the battery pack 100 and reducing the potential safety hazards of the battery pack 100.

[0047] In some embodiments of the present invention, refer to the attached Figure 2 and attached Figure 4 As shown, the battery pack 1 is in a first direction (see attached Figure 2 There are multiple battery packs 100 stacked in an upper and lower direction (as shown in the upper and lower directions), each battery pack 1 includes two battery cell groups 11 spaced apart along a third direction, each battery cell group 11 includes a plurality of battery cells 111 arranged in the second direction, the number of battery cells 111 in the battery pack 100 can be increased, the battery cells 111 can be arranged more compactly in the battery pack 100, the space utilization of the battery pack 100 in the first direction can be improved, the energy density of the battery pack 100 can be further increased, the cruising range can be improved, and the user's usage requirements can be met, and the third direction, the second direction and the first direction are perpendicular to each other.

[0048] For example, two, three, or four battery packs 1 may be stacked in the first direction.

[0049] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the battery pack 100 also includes a BDU module 2 (battery energy distribution unit), which is arranged in the second direction of the plurality of battery packs 1 (see attached Figure 1 On one side of the front-to-back direction shown in the second direction, in two adjacent battery groups 1 in the first direction, the total current input pole 12 of one battery group 1 and the total current output pole 13 of the other battery group 1 are both connected to the BDU module 2 so that the two adjacent battery groups 1 are connected in series through the BDU module 2, and the second direction is perpendicular to the first direction.

[0050] It can be understood that, in two adjacent battery groups 1 in the first direction, the total current input pole 12 of one battery group 1 is connected to the relay protection module, and the total current output pole 13 is directly connected to the main positive relay of the BDU module 2, and the total current output pole 13 of the other battery group 1 is connected to the relay protection module, and the total current input pole 12 is directly connected to the main negative relay of the BDU module 2. This can enable the stacked multi-layer battery groups 1 to be connected within the BDU module 2 while meeting the power requirements, thereby simplifying the high-voltage connection structure of the stacked battery pack 100 and improving the safety of the battery pack 100.

[0051] It should be noted that the relay protection module is a relay other than the main positive relay or the main negative relay, and the connection of the high-voltage circuit needs to be connected together through the relay protection module, the main positive relay and the main negative relay. In addition, the disconnection of the high-voltage circuit can be disconnected through the relay protection module, the main positive relay and the main negative relay, the passive disconnection of the fuse of the main negative relay, the active and passive integrated fuse, or the disconnection unit of the main circuit in other BDU modules 2.

[0052] In a specific example, see the attached Figure 2 and attached Figure 6 As shown, there are two battery packs 1, the two battery packs 1 are a first battery pack 17 and a second battery pack 18, and the first battery pack 17 and the second battery pack 18 are in the up and down direction (such as Figure 6 The first battery group 17 is located on the upper side of the second battery group 18, the total current input pole 12 includes a first total current input pole 121 of the first battery group 17 and a second total current input pole 122 of the second battery group 18, the total current output pole 13 includes a first total current output pole 131 of the first battery group 17 and a second total current output pole 132 of the second battery group 18, the first total current input pole 121 and the second total current output pole 132 are both connected to the relay protection module, and the first total current output pole 131 and the second total current input pole 122 are directly connected to the BDU module 2, so that the first battery group 17 and the second battery group 18 are connected in series through the BDU module 2.

[0053] Of course, the utility model is not limited to this. Two adjacent battery groups 1 in the first direction may also be connected in parallel through the BDU module 2. It can be understood that the total current input pole 12 and the total current output pole 13 of the two adjacent battery groups 1 may be directly connected to the BDU module 2; or, in the two adjacent battery groups 1, the total current input pole 12 and the total current output pole 13 of one battery group 1 are connected to the relay protection module, and the total current input pole 12 and the total current output pole 13 of the other battery group 1 are directly connected to the BDU module 2.

[0054] In some embodiments of the present invention, refer to the attached Figure 5 As shown, multiple battery cells 111 in each battery cell group 11 are connected in series, and multiple battery cell groups 11 in the same battery group 1 are connected in series, so that all battery cells 111 in the same battery group 1 are connected in series, ensuring the layout of the high-voltage circuit of the battery pack 100.

[0055] Specifically, refer to the attached Figure 1 and attached Figure 3 As shown, two adjacent cells 111 in each cell group 11 are connected in series through a connecting piece 16, the connecting piece 16 is located at one end of the cell group 11 along the second direction, and both ends of the connecting piece 16 in the length direction are respectively connected to the positive or negative electrodes of two adjacent cells 111 in the same cell group 11, so that multiple cells 111 in each cell group 11 are connected in series. Of course, the utility model is not limited to this, and multiple cells 111 in each cell group 11 can also be electrically connected through a busbar.

[0056] In some embodiments of the present invention, refer to the attached Figure 5 As shown, each battery cell 111 has a positive electrode and a negative electrode arranged at both ends of the third direction, and the positive electrodes of two adjacent battery cells 111 in the same battery cell group 11 are located at opposite ends of the third direction, so that the positive electrode and the negative electrode in each battery cell 111 are respectively located at both ends of the third direction, which can increase the spacing between different electrodes, prevent the risk of high-voltage arc breakdown, facilitate the arrangement and assembly of multiple battery cells 111, ensure the reliability of the assembly of the battery cells 111, and facilitate the connecting piece 16 to connect two adjacent battery cells 111 in the same battery cell group 11 in series.

[0057] In some embodiments of the present invention, refer to the attached Figure 5 As shown, each battery cell 111 has a positive electrode and a negative electrode arranged at both ends of the third direction, and the two adjacent battery cell groups 11 in the same battery pack 1 are respectively the first battery cell group and the second battery cell group, and the two battery cells 111 opposite to each other in the third direction of the first battery cell group and the second battery cell group are respectively the first battery cell and the second battery cell, and the positive electrodes of the first battery cell and the second battery cell are located at opposite ends of the third direction, so that the total current input electrode 12 and the total current output electrode 13 of the same battery pack 1 can be staggered, simplifying the design difficulty of the BDU module 2, reducing the high voltage risk on the side of the battery pack 1 close to the BDU module 2, and improving the safety and reliability of the battery pack 100.

[0058] In a further embodiment of the present invention, refer to the attached Figure 3As shown, two adjacent battery cell groups 11 in the same battery pack 1 are connected through the first connecting row 14, so that the number of interfaces for electrically connecting the BDU module 2 with multiple battery packs 1 can be reduced, and the number of wirings between the BDU module 2 and multiple battery packs 1 can be reduced, thereby reducing the risk of high-voltage breakdown. It can be understood that two adjacent battery cells 111 in the same battery cell group 11 are connected in series through the connecting piece 16, and two adjacent battery cell groups 11 in the same battery pack 1 are connected in series through the first connecting row 14, so that all battery cells 111 in the same battery pack 1 are connected in series, ensuring the layout of the high-voltage circuit of the battery pack 100. Optionally, the first connecting row 14 is a metal conductive member, for example, the second connecting row 15 can be a copper bar, an aluminum bar, or a copper-aluminum composite member.

[0059] In a further embodiment of the present invention, refer to the attached Figure 3 As shown, the first connection row 14 is located on the side of the battery pack 1 away from the BDU module 2, and the extension direction of the corresponding first connection row 14 in the plurality of battery packs 1 (refer to the attached Figure 3 The third direction shown in the figure) is consistent with the length direction (see the attached Figure 3 The two ends of the third direction) are flush and arranged relative to each other in the first direction, avoiding the horizontal and vertical staggered layout between the first connection rows 14 corresponding to the multiple battery groups 1, ensuring sufficient electrical spacing, effectively reducing the electrical safety risks under various safety abuse test conditions, and improving the safety and reliability of the battery pack 100.

[0060] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the total current input pole 12 and the total current output pole 13 of each battery group 1 are located at one end of the battery group 1 close to the BDU module 2, which can facilitate the connection of the total current input pole 12 and the total current output pole 13 of each battery group 1 with the BDU module 2, ensuring that two adjacent battery groups 1 in the first direction are connected in series through the BDU module 2, simplifying the routing between the BDU module 2 and multiple battery groups 1, and facilitating the high-voltage circuit layout of the battery pack 100.

[0061] In a specific example, see the attached Figure 6 As shown, there are two battery packs 1, the two battery packs 1 are a first battery pack 17 and a second battery pack 18, and the first battery pack 17 and the second battery pack 18 are in the up and down direction (such as Figure 6The first battery group 17 is located on the upper side of the second battery group 18, the total current input pole 12 includes a first total current input pole 121 of the first battery group 17 and a second total current input pole 122 of the second battery group 18, the total current output pole 13 includes a first total current output pole 131 of the first battery group 17 and a second total current output pole 132 of the second battery group 18, and the first total current input pole 121 and the second total current output pole 132 are both connected to the BDU module 2 so that the first battery group 17 and the second battery group 18 are connected in series through the BDU module 2.

[0062] In such Figure 5 and Figure 6 In the example shown, current flows from the BDU module 2 through the second current total input pole 122 of the second battery group 18 into a cell group 11 of the second battery group 18 to power the cell 111. Through the connection of the first connecting row 14 of the second battery group 18, current flows from one cell group 11 to the adjacent cell group 11, and then flows back to the BDU module 2 through the second current total output pole 132 of the second battery group 18. The adjacent first battery group 17 and the second battery group 18 are connected in series through the relay protection module of the BDU module 2. Current flows from the relay protection module through the first current total input pole 121 of the first battery group 17 into a cell group 11 of the first battery group 17 to power the cell 111. Through the connection of the first connecting row 14 of the first battery group 17, current flows from one cell group 11 to the adjacent cell group 11, and then returns to the BDU module 2 through the first current total output pole 131 of the first battery group 17, thereby realizing the high-voltage circuit of the battery pack 100, complying with the electrical safety design, and ensuring the safety and reliability of the battery pack 100.

[0063] In some embodiments of the present invention, the BDU module 2 includes a relay protection module. In two adjacent battery groups 1, the total current input pole 12 of one battery group 1 and the total current output pole 13 of the other battery group 1 are both connected to the relay protection module so that the two adjacent battery groups 1 are connected or disconnected through the relay protection module.

[0064] Specifically, the relay protection module includes a static contact, a moving contact and a driving member, the static contact includes a first static contact and a second static contact, in two adjacent battery groups 1, the total current input pole 12 of one battery group 1 is electrically connected to the first static contact, and the total current output pole 13 of the other battery group 1 is electrically connected to the second static contact, the moving contact can be driven by the driving member and has a first position and a second position, in the first position, the moving contact is in contact with both the first static contact and the second static contact, the moving contact is connected to the first static contact, the second static contact and the two adjacent battery groups 1, in the second position, the moving contact is spaced apart from at least one of the first static contact and the second static contact, and the moving contact is disconnected from at least one of the first static contact and the second static contact.

[0065] It can be understood that when the relay protection module receives a high-level signal (typical value 5V), the driving member drives the moving contact to move to the first position in the direction close to the static contact, and the moving contact contacts both the first static contact and the second static contact, the moving contact and the static contact are closed, and the first static contact, the moving contact, the second static contact and the two adjacent battery packs 1 are connected to achieve electrical connection between the two adjacent battery packs 1; when the relay protection module receives a low-level signal (typical value 0V), the driving voltage of the driving member is disconnected, the moving contact moves to the second position in the direction away from the static contact, the moving contact is spaced from at least one of the first static contact and the second static contact, the moving contact and the static contact are disconnected, and the electrical connection between the two adjacent battery packs 1 is actively disconnected. When thermal runaway or electrolyte leakage occurs, a current loop cannot be formed, which can slow down the speed of thermal runaway fire to a certain extent, reduce the severity of thermal runaway, and improve safety and reliability.

[0066] In other embodiments of the utility model, a switching device is provided in the BDU module 2. In two adjacent battery groups 1, the total current input pole 12 of one battery group 1 and the total current output pole 13 of the other battery group 1 are both connected to the switching device so that the two adjacent battery groups 1 are connected or disconnected through the switching device. The structure is simple, the assembly is convenient, the control logic is simpler, and the reliability is higher.

[0067] In other embodiments of the present invention, in two adjacent battery groups 1, the total current input pole 12 of one battery group 1 and the total current output pole 13 of the other battery group 1 can be directly connected through a conductive bus outside the BDU module 2 without passing through the BDU module 2, thereby reducing the difficulty of assembling the battery pack 100.

[0068] In a further embodiment of the present invention, refer to the attached Figure 1 and attached Figure 3 As shown, the battery pack 100 also includes a rear-drive high-voltage port 3, which is arranged on a side of the plurality of battery packs 1 away from the BDU module 2 and connected to the BDU module 2 through a second connection row 15. One end of the rear-drive high-voltage port 3 away from the second connection row 15 is connected to the rear-drive motor electronic control, and the rear-drive motor electronic control can be driven through the second connection row 15 to provide energy, so as to realize charging of the battery pack 100 through the second connection row 15. In combination with the front-drive high-voltage port of the battery pack 100, the front-drive high-voltage port and the rear-drive high-voltage port 3 can simultaneously charge the battery pack 100, and the setting of the second connection row 15 can reduce the wiring of the vehicle level outside the battery pack 100, simplify the vehicle wiring harness layout, and improve the disassembly and assembly efficiency of the battery pack 100. Optionally, the second connection row 15 is a metal conductive member, for example, the second connection row 15 can be a copper bar, an aluminum bar, or a copper-aluminum composite member.

[0069] In a further embodiment of the present invention, refer to the attached Figure 3 and attached Figure 5 As shown, the projections of the first connection row 14 and the second connection row 15 on the plane perpendicular to the first direction have no intersection, so that the electrical gap between the first connection row 14 and the second connection row 15 can be reasonably controlled, avoiding the staggered layout of the first connection row 14 and the second connection row 15, making the wiring clean and tidy, reducing the high voltage risk of the battery pack 100, and ensuring the electrical safety of the battery pack 100 while also improving the EMC (electromagnetic compatibility) test reliability capability.

[0070] In a further embodiment of the present invention, refer to the attached Figure 5 As shown, the layouts of the battery cells 111 of multiple battery packs 1 are the same, which can ensure the consistency of the stacking assembly of the battery cells 111, reduce design and production materials, avoid increasing process design and control requirements, reduce the production risk of the battery pack 100, and speed up the production cycle and improve production efficiency.

[0071] The present invention also provides a vehicle having the battery pack 100 of the above embodiment.

[0072] According to the vehicle of the embodiment of the utility model, by being provided with the above-mentioned battery pack 100, the battery pack 1 includes two battery cell groups 11 arranged at intervals along the third direction, and the two acquisition circuit boards 4 correspond to the two battery cell groups 11 one by one and are respectively located on the side of the two battery cell groups 11 close to each other, which can simplify the daisy chain line length of the acquisition circuit board 4, reduce the length of the low-voltage wiring harness, and relatively reduce the requirements for constraining the wiring harness, so that the wiring in the battery pack 100 is cleaner and tidier, thereby improving the safety and reliability of the battery pack 100 and reducing the safety hazards of the battery pack 100.

[0073] The battery pack 100 and other structures and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0075] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: A battery pack (1), the battery pack (1) comprising two battery cell groups (11) arranged at intervals along a third direction, each of the battery cell groups (11) comprising a plurality of battery cells (111) arranged in a second direction, the second direction being perpendicular to the third direction; A collection circuit board (4), wherein the collection circuit boards (4) are multiple, each of the battery cell groups (11) corresponds to at least one of the collection circuit boards (4), and the corresponding multiple collection circuit boards (4) in the same battery group (1) are respectively located on one side of two battery cell groups (11) close to each other.

2. The battery pack according to claim 1, characterized in that: The battery pack (1) is a plurality of batteries stacked in a first direction, and the third direction, the second direction and the first direction are perpendicular to each other.

3. The battery pack according to claim 2, characterized in that: Also includes: A BDU module (2), the BDU module (2) being arranged on one side of the second direction of the plurality of battery groups (1), wherein in two adjacent battery groups (1), the total current input pole (12) of one battery group (1) and the total current output pole (13) of the other battery group (1) are both connected to the BDU module (2) so that the two adjacent battery groups (1) are connected in series through the BDU module (2), and the second direction is perpendicular to the first direction.

4. The battery pack according to claim 3, characterized in that: The layout of the battery cells (111) of the plurality of battery packs (1) is the same.

5. The battery pack according to any one of claims 1 to 4, characterized in that: The multiple battery cells (111) in each battery cell group (11) are connected in series, and the multiple battery cell groups (11) in the same battery group (1) are connected in series.

6. The battery pack according to any one of claims 1 to 4, characterized in that: Each of the battery cells (111) has a positive electrode and a negative electrode disposed at two ends of the third direction, and the positive electrodes of two adjacent battery cells (111) in the same battery cell group (11) are located at two opposite ends of the third direction.

7. The battery pack according to any one of claims 1 to 4, characterized in that: Each of the battery cells (111) has a positive electrode and a negative electrode arranged at two ends of the third direction; two adjacent battery cell groups (11) in the same battery group (1) are respectively a first battery cell group and a second battery cell group; two battery cells (111) opposite to each other in the third direction of the first battery cell group and the second battery cell group are respectively a first battery cell and a second battery cell; and the positive electrodes of the first battery cell and the second battery cell are located at opposite ends of the third direction.

8. The battery pack according to claim 3, characterized in that: Two adjacent battery cell groups (11) in the same battery group (1) are connected via a first connecting row (14).

9. The battery pack according to claim 8, characterized in that: The first connection row (14) is located on a side of the battery pack (1) away from the BDU module (2); the first connection rows (14) corresponding to the plurality of battery packs (1) have the same extension direction, are flush at both ends in the length direction and are arranged opposite to each other in the first direction.

10. The battery pack according to claim 3, characterized in that: The total current input pole (12) and the total current output pole (13) of each battery pack (1) are both located at one end of the battery pack (1) close to the BDU module (2).

11. The battery pack according to claim 8, characterized in that: The battery pack (100) further comprises: A rear-drive high-voltage port (3), the rear-drive high-voltage port (3) being arranged on a side of the plurality of battery packs (1) away from the BDU module (2) and connected to the BDU module (2) via a second connection row (15).

12. The battery pack according to claim 11, characterized in that: The projections of the first connecting row (14) and the second connecting row (15) on a plane perpendicular to the first direction do not intersect.

13. A vehicle, characterized in that: Comprising a battery pack (100) according to any one of claims 1 to 12.

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