CN218919237U - BMS mainboard and BDU's integrated structure and battery package - Google Patents

Abstract

The utility model provides an integrated structure of a BMS main board and a BDU and a battery pack, and the integrated structure of the BMS main board and the BDU comprises a BDU lower shell arranged between a front panel of a battery pack lower shell and a battery module, and a BDU electric device and the BMS main board arranged in the BDU lower shell, wherein the BDU lower shell is provided with a front side wall facing one side of the front panel, a rear side wall facing one side of the battery module, a first avoiding part for avoiding a convex mounting part on the front panel is arranged on the front side wall, and a second avoiding part for avoiding an external conducting bar is arranged on the rear side wall. According to the integrated structure of the BMS main board and the BDU, the BMS main board is integrated in the BDU lower shell, the occupied area of the battery pack space can be reduced, the first avoiding part and the second avoiding part are arranged, the space between the front panel and the battery module can be fully utilized, and the space utilization rate of the battery pack can be effectively improved.

Description

BMS mainboard and BDU's integrated structure and battery package

Technical Field

The utility model relates to the technical field of power batteries, in particular to an integrated structure of a BMS main board and a BDU. Meanwhile, the utility model also relates to a battery pack with the integrated structure of the BMS main board and the BDU.

Background

A BMS (battery management system) is a system for managing batteries, and generally has a function of measuring the voltage of the batteries, preventing or avoiding abnormal conditions such as overdischarge, overcharge, and over-temperature of the batteries. The BDU (battery pack circuit breaking unit) is a protection battery module in the PDU (power distribution unit) of the new energy automobile, is an important component of the whole control system of the new energy automobile, and plays a role in coordinating the function conversion and energy distribution of high-voltage accessories such as a driving motor control system, a battery management system, a charging management system, an electric air conditioner, an electric power steering and the like.

The BMS and the BDU are generally disposed at the front end of the battery pack, but are limited by the relative arrangement of the BMS and the BDU in the prior art, which results in a large space occupied by the BDU and the BMS in the battery pack, which affects the improvement of the energy density of the battery pack. And, be limited by BDU casing self structure, lead to the BDU to be difficult to make full use of battery module and high voltage connector between the space to lead to the inside space utilization of battery package lower, further influence the promotion of the energy density of battery package.

Disclosure of Invention

In view of the above, the present utility model is directed to an integrated structure of a BMS motherboard and a BDU, so as to facilitate improving the space utilization inside a battery pack.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the integrated structure of the BMS main board and the BDU comprises a BDU lower shell arranged between a front panel of a battery pack lower shell and a battery module, and BDU electric devices and the BMS main board arranged in the BDU lower shell, wherein the BMS main board is arranged above the BDU electric devices in the height direction of the BDU lower shell, and the BDU electric devices are connected with the battery module through external conductive bars;

the BDU lower shell is provided with a front side wall facing one side of the front panel and a rear side wall facing one side of the battery module, the front side wall is provided with a first avoiding part for avoiding a convex installation part on the front panel, the rear side wall is provided with a second avoiding part for avoiding an external conductive row, and the first avoiding part and the second avoiding part are all arranged along the height direction of the BDU lower shell in an extending mode.

Further, the first avoiding portion is an opening formed in the front side wall, and the second avoiding portion is an avoiding groove formed in the rear side wall and recessed toward the inside of the BDU lower shell.

Further, the opening is rectangular, and in the direction from the front side wall to the rear side wall, a space is formed between the projected edge of the opening and the boss mounting portion, and the space size is not smaller than 2mm.

Further, the BDU electric device further comprises an inner conductive bar arranged at the top of the BDU electric device, wherein the inner conductive bar is provided with a first connecting end extending towards the front panel and a second connecting end extending towards the rear side wall and protruding out;

the inner conducting bar is used for connecting different sub-electric devices in the BDU electric device, the first connecting end is detachably connected with the high-voltage connector penetrating through the front panel, and the second connecting end is detachably connected with the outer conducting bar.

Further, the BDU electric device comprises a pre-charging resistor, and the pre-charging resistor is positioned below the first connecting end along the height direction of the BDU lower shell; and/or the number of the groups of groups,

along the direction of height of the BDU lower shell, the second connecting end is located above the outer conducting bar, a first through hole is formed in the first connecting end, a second through hole is formed in the outer conducting bar, a nut is arranged at the bottom of the outer conducting bar, and the second connecting end is connected with the outer conducting bar through bolts penetrating through the first through hole, the second through hole and being in threaded connection with the nut.

Further, the BDU electrical device is connected to a low voltage connector mounted on the front panel; the BDU lower shell comprises a bottom wall provided with a front side wall and a rear side wall, and a placement groove for positioning and placing the low-voltage connector before installation is formed in the bottom wall.

Further, in a direction perpendicular to the front side wall to the rear side wall, a connection side wall connecting two ends of the front side wall and the rear side wall is arranged on the bottom wall, and the BDU electric device and the BMS main board are located in an area formed by the bottom wall, the front side wall, the rear side wall and the two connection side walls; and the two connecting side walls are respectively provided with a slave board connector connected with the BMS main board, and the slave board connectors are used for being connected with BMS slave boards in the battery pack.

Further, a plurality of fixing columns are arranged on the bottom wall at intervals, each fixing column extends and is arranged along the height direction of the BDU, and the BMS main board is arranged between each fixing column and the BDU upper shell.

Further, the BDU upper shell is arranged on the BDU lower shell, and in the height direction of the BDU lower shell, the projection of the BDU upper shell covers the BDU lower shell and the connection points of the BDU electric devices and the external conductive bars.

Compared with the prior art, the utility model has the following advantages:

according to the integrated structure of the BMS main board and the BDU, the BMS main board is integrated in the BDU lower shell, the occupied area of the battery pack space can be reduced, the first avoidance part and the second avoidance part are arranged, the space between the front panel and the battery module can be fully utilized, the space utilization rate of the battery pack can be effectively improved, meanwhile, the first avoidance part and the second avoidance part are arranged in an extending mode along the height direction of the BDU lower shell, the BDU lower shell can be installed from top to bottom along the height direction of the battery pack when being installed, the disassembly convenience is improved, and the integrated structure has a good use effect.

In addition, by being provided with the mounting groove for positioning and placing the low-voltage connector before installation on the bottom wall, the low-voltage connector which is assembled in the BDU lower shell in advance in the transportation process can be prevented from shaking, and damage to the low-voltage connector in the transportation process can be prevented.

In addition, through the projection that makes BDU go up the casing cover BDU lower casing and BDU electric device and the tie point of outside electrically conductive row, can protect the inside BDU, when avoiding personnel later stage electric shock risk, also can omit the helmet of setting up the tie point at BDU electric device and outside electrically conductive row, save the cost.

Another object of the present utility model is to provide a battery pack including the integrated structure of the BMS motherboard and the BDU as described above.

According to the battery pack, the integrated structure of the BMS main board and the BDU is arranged, so that the space utilization rate inside the battery pack is improved, and the energy density of the battery pack is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is an exploded view of parts of an integrated structure of a BMS motherboard and a BDU according to an embodiment of the present utility model;

fig. 2 is a schematic diagram illustrating a top view of a part of an integrated structure of a BMS motherboard and a BDU according to an embodiment of the present utility model;

fig. 3 is a schematic view illustrating a back view of a part of an integrated structure of a BMS motherboard and a BDU according to an embodiment of the present utility model;

fig. 4 is a schematic diagram illustrating another top view of a part of an integrated structure of a BMS motherboard and a BDU according to an embodiment of the present utility model;

fig. 5 is a top view illustrating a part of the structure of the integrated structure of the BMS motherboard and the BDU according to an embodiment of the present utility model;

fig. 6 is a schematic view showing a part of the structure of a battery pack according to an embodiment of the present utility model;

fig. 7 is an enlarged view of a portion a in fig. 6.

Reference numerals illustrate:

1. a battery module; 2. a battery pack lower case; 201. a front panel; 2011. a projection mounting portion; 3. a BDU lower shell; 301. a front sidewall; 3011. an opening; 302. a rear sidewall; 3021. an avoidance groove; 4. BMS main board; 5. an outer conductive bar; 6. an inner conductive bar; 601. a first connection end; 602. a second connection end; 7. BDU electric devices; 701. pre-charging a resistor; 702. a relay; 8. a high voltage connector; 9. a low voltage connector; 10. a placement groove; 11. a bolt; 12. a slave board connector; 13. an upper shell of the BDU; 14. and fixing the column.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

This embodiment relates to an integrated configuration of BMS mainboard and BDU, including locating the BDU lower casing 3 of casing 2 under the battery package between front panel 201 and the battery module 1 to and locate BDU electric component 7 and BMS mainboard 4 under the BDU in casing 3, along BDU lower casing 3 direction of height, the top of BDU electric component 7 is located to BMS mainboard 4, and BDU electric component 7 links to each other through outside busbar 5 with battery module 1.

The BDU lower shell 3 is provided with a front side wall 301 facing one side of the front panel 201, a rear side wall 302 facing one side of the battery module 1, a first avoiding portion for avoiding a convex mounting portion 2011 on the front panel 201 is arranged on the front side wall 301, a second avoiding portion for avoiding an outer conductive bar 5 is arranged on the rear side wall 302, and the first avoiding portion and the second avoiding portion are all arranged in an extending mode along the height direction of the BDU lower shell 3.

Based on the above overall description, as a preferred embodiment, as shown in fig. 1 to 7, in this embodiment, the first avoidance portion is an opening 3011 provided on the front side wall 301, and the second avoidance portion is a avoidance groove 3021 provided on the rear side wall 302 and recessed into the BDU lower housing 3. So set up, when installing BDU lower casing 3, can be from last decurrent, directly place BDU lower casing 3 to the assigned position, and the setting of first portion of dodging and second dodging, then guarantee that BDU lower casing 3 can not receive the hindrance at the in-process that descends to the installation of being convenient for. And, the arrangement of the first avoidance part and the second avoidance part also enables the BDU to fully utilize the space between the battery module 1 and the front panel 201, thereby improving the space utilization rate in the battery pack.

It should be noted that, the protrusion mounting portion 2011 described in this embodiment includes a plurality of mounting protrusions disposed on the side of the front sidewall 301 facing the BDU and protruding toward the BDU, and the purpose of the mounting protrusions is to be tapped by screws, and in specific implementation, as shown in fig. 2 and 7, the high-voltage connector 8, the low-voltage connector 9, and the front panel 201, and the upper case and the front panel 201 of the battery pack may be connected by the screws tapped into the mounting protrusions. In addition, through the plurality of installation protrusions that set up, also can be for high-pressure connection and the low-voltage connector 9 to break out into the part in BDU lower casing 3 and prescribe a limit in advance the installation space to make things convenient for in the follow-up assembly process, high-voltage connector 8 and low-voltage connector 9's inserts.

Still as a preferred embodiment, as shown in fig. 1 and 4, the opening 3011 in this embodiment is rectangular, and in the direction from the front side wall 301 to the rear side wall 302, a space is formed between the projected edge of the opening 3011 and the protrusion mounting portion 2011, and the space size is not less than 2mm, and in a specific implementation, the space between the projected edge of the opening 3011 and the mounting protrusions located at two sides of the width direction of the battery pack is not less than 2mm, and may be specifically 2mm, 3mm, 4mm, or the like, so that it is sufficient to ensure that the BDU lower housing 3 is not blocked by the mounting protrusions when being mounted to the battery module 1 and the front panel 201 from top to bottom.

In addition, as shown in fig. 3, two avoidance grooves 3021 are provided on the rear side wall 302 of the BDU lower case 3 at intervals to avoid the external conductive bars 5 respectively connected to the positive and negative electrodes of the battery module 1. In a specific implementation, the width of the avoiding groove 3021 is larger than the width of the outer conductive bar 5, so that the bottom-up movement of the BDU lower housing 3 is not affected.

As a preferred embodiment, the integrated structure of the BMS motherboard and the BDU of the present embodiment further includes an inner conductive bar 6 disposed on top of the BDU electrical device 7, and the inner conductive bar 6 has a first connection end 601 extending toward the front panel 201 and a second connection end 602 extending toward the rear sidewall 302 and protruding. The inner conductive strip 6 is used for connecting different sub-electric devices in the BDU electric device 7, the first connection end 601 is detachably connected with the high-voltage connector 8 penetrating through the front panel 201, and the second connection end 602 is detachably connected with the outer conductive strip 5.

As shown in fig. 4 and 5, two internal conductive bars 6 are provided in the present embodiment in total, including a main positive internal conductive bar connected between the positive electrode of the battery module 1 and the positive electrode of the high voltage connector 8, and a main negative internal conductive bar connected between the negative electrode of the battery module 1 and the negative electrode of the high voltage connector 8. The BDU electrical device 7 described above includes a relay 702 connected to the inner conductor bar 6. One end of the inner conductive strip 6 extending from the relay 702 towards the high voltage connector 8, which is close to the high voltage connector 8, that is, the lower surface of the first connecting end 601 is attached to the upper surface of the connecting point where the high voltage connector 8 extends into the BDU housing, and a separate output electrode base is not required to support and position the inner conductive strip 6.

In addition, as shown in fig. 3, along the height direction of the BDU lower housing 3, the second connection end 602 is located above the outer conductive strip 5, a first via hole is provided on the second connection end 602, a second via hole is provided on the outer conductive strip 5, and a nut is provided at the bottom of the outer conductive strip 5, and the second connection end 602 is connected to the outer conductive strip 5 by a bolt 11 passing through the first via hole, the second via hole and screwed into the nut. The connection between the first connection end 601 and the high voltage connector 8 is the same as the connection between the second connection end 602 and the external conductive bar 5, except that the first connection end 601 is located above and below the connection point of the high voltage connector 8.

Furthermore, still as a preferred embodiment, in this embodiment, the BDU electric device 7 includes a pre-charge resistor 701, and the pre-charge resistor 701 is located below the first connection end 601 along the height direction of the BDU lower housing 3. As shown in fig. 4 and 5, the precharge resistor 701 is a strip-shaped component, and by arranging the precharge resistor 701 below the first connection end 601, the space below the connection position of the inner conductive strip 6 and the high-voltage connector 8 can be fully utilized, which is beneficial to reducing the volume of the BDU and preventing the occupation space of the BDU from being too large.

It should be noted that the above-mentioned arrangement of the precharge resistor 701 below the first connection terminal 601 is merely a preferred embodiment, and the precharge resistor 701 may be arranged at other positions in the BDU according to the spatial arrangement situation in the BDU. The connection between the second connection end 602 and the external conductive strip 5 is also only a preferred option, and other connection methods, such as welding, may be used in the implementation.

The BDU electrical device 7 is connected to the low voltage connector 9 mounted on the front panel 201, and the BDU lower housing 3 includes a bottom wall provided with a front side wall 301 and a rear side wall 302, and a seating groove 10 for positioning the low voltage connector 9 before mounting is provided on the bottom wall. As shown in fig. 4 and 5, the seating groove 10 may be provided according to the outer shape of the low pressure connector 9, and the low pressure connector 9 may be inserted into the seating groove 10 to prevent shaking during transportation. After the BDU lower housing 3 is mounted to the battery pack lower housing 2, the worker only needs to remove the low voltage connector 9 from the mounting groove 10 and mount it to the front panel 201.

In addition, the BDU electric device 7 described in the present embodiment includes other electric devices that are normally provided in the BDU in the related art, in addition to the precharge resistor 701 and the relay 702 described above.

In the direction perpendicular to the front side wall 301 to the rear side wall 302, the bottom wall is provided with a connecting side wall connecting the two ends of the front side wall 301 and the rear side wall 302, the BDU electric device 7 and the BMS motherboard 4 are located in the area formed by the bottom wall, the front side wall 301, the rear side wall 302 and the two connecting side walls, the two connecting side walls are provided with a slave board connector 12 connected with the BMS motherboard 4, and the slave board connector 12 is used for connecting with a BMS slave board in the battery pack. Through being provided with from board connector 12, be convenient for realize BMS mainboard 4 and BMS from being connected between the board, when carrying out the integral packaging, the installation length is shorter and arrange simple communication pencil, can realize BMS mainboard 4 and BMS from the communication between the board.

In addition, still be provided with the BDU pencil in BDU lower shell 3, connect the BMS mainboard 4 and the first connection pencil of BDU electrical component 7 to and connect the BMS mainboard 4 and the second connection pencil of slave board connector 12, BDU pencil, first connection pencil, second connection pencil bind together, and arrange between BDU lower shell 3 and BDU electrical component 7. So set up, after installing the BMS mainboard 4 to BDU electrical component 7's top, can directly peg graft first connection pencil and second connection pencil in the position department that corresponds on the mainboard. And after setting up BMS mainboard 4 inside BDU, then can shorten the pencil length that needs to arrange by a wide margin to also the casing of accessible BDU realizes the protection to BMS mainboard 4, need not to set up independent protective structure for BMS mainboard 4.

In order to facilitate the arrangement of the BMS motherboard 4 on the BDU lower housing 3, as shown in fig. 1, 4 and 5, a plurality of fixing posts 14 are disposed on the bottom wall at intervals, each fixing post 14 extends along the height direction of the BDU, and the BMS motherboard 4 is disposed between each fixing post 14 and the BDU upper housing 13. In particular, four fixing columns 14 are provided in this embodiment, and the four fixing columns 14 are disposed corresponding to four corners of the BMS motherboard 4 respectively, so that the BMS motherboard 4 is mounted more firmly. Of course, other numbers of fixing posts 14 may be provided, such as three, five, six, etc.

In addition, the integrated structure of BMS mainboard and BDU of this embodiment still includes the BDU upper housing 13 of locating on the BDU lower housing 3, on the BDU lower housing 3 direction of height, the projection of BDU upper housing 13 covers the BDU lower housing 3 and the tie point of BDU electrical component 7 and outside electric conductor 5, so, can protect the BDU inside, when avoiding personnel later stage electric shock risk, also can omit the helmet of setting up the tie point at BDU electrical component 7 and outside electric conductor 5, saves the cost. In addition, in the embodiment, instead of the fixing column 14 being provided on the BDU lower housing 3, the fixing column 14 may be provided on the BDU upper housing 13, and the BMS main board 4 may be connected to the fixing column 14 and then may be held above the BDU electric device 7.

The integrated structure of BMS mainboard and BDU of this embodiment, through with the BMS mainboard 4 integration in BDU lower casing 3, reducible battery package space area, and the setting of portion is dodged to first dodging and the second, but still make full use of the space between front panel 201 and the battery module 1, and then can effectively promote battery package space utilization, simultaneously, first dodging portion and second dodge the portion all along the BDU lower casing 3 direction of height extends and arranges, installs along battery package direction of height top-down when also can making BDU lower casing 3 install, promotes the dismouting convenience, and can have good result of use.

Example two

The present embodiment relates to a battery pack including the integrated structure of the BMS motherboard and the BDU in the first embodiment.

The battery pack of this embodiment is favorable to promoting the space utilization of battery pack inside through being equipped with the integrated configuration of BMS mainboard and BDU in embodiment one, and then promotes the energy density of battery pack.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. BMS mainboard and BDU's integrated configuration, its characterized in that:

the battery pack comprises a BDU lower shell (3) arranged between a front panel (201) of the battery pack lower shell (2) and a battery module (1), and BDU electric devices (7) and a BMS main board (4) arranged in the BDU lower shell (3), wherein the BMS main board (4) is arranged above the BDU electric devices (7) along the height direction of the BDU lower shell (3), and the BDU electric devices (7) are connected with the battery module (1) through external conducting bars (5);

the BDU lower shell (3) is provided with a front side wall (301) facing one side of the front panel (201), a rear side wall (302) facing one side of the battery module (1), a first avoiding part for avoiding a convex installation part (2011) on the front panel (201) is arranged on the front side wall (301), a second avoiding part for avoiding an external conducting bar (5) is arranged on the rear side wall (302), and the first avoiding part and the second avoiding part are all arranged along the height direction of the BDU lower shell (3).

2. The BMS motherboard and BDU integrated structure according to claim 1, wherein:

the first avoidance part is an opening (3011) formed in the front side wall (301), and the second avoidance part is an avoidance groove (3021) formed in the rear side wall (302) and recessed toward the inside of the BDU lower shell (3).

3. The BMS motherboard and BDU integrated structure according to claim 2, wherein:

the opening (3011) is rectangular, and in the direction from the front side wall (301) to the rear side wall (302), a space is formed between the projected edge of the opening (3011) and the boss mounting portion (2011), and the size of the space is not less than 2mm.

4. The BMS motherboard and BDU integrated structure according to claim 2, wherein:

the BDU electric device further comprises an inner conductive bar (6) arranged on the top of the BDU electric device (7), wherein the inner conductive bar (6) is provided with a first connecting end (601) extending towards the front panel (201) and a second connecting end (602) extending towards the rear side wall (302) and protruding;

the inner conducting bar (6) is used for connecting different sub-electric devices in the BDU electric device (7), the first connecting end (601) is detachably connected with the high-voltage connector (8) penetrating through the front panel (201), and the second connecting end (602) is detachably connected with the outer conducting bar (5).

5. The BMS motherboard and BDU integrated structure according to claim 4, wherein:

the BDU electric device (7) comprises a pre-charging resistor (701), and the pre-charging resistor (701) is positioned below the first connecting end (601) along the height direction of the BDU lower shell (3); and/or the number of the groups of groups,

along the direction of height of casing (3) under the BDU, second link (602) are located the top of outside conducting strip (5), be equipped with first via hole on second link (602), be equipped with the second via hole on outside conducting strip (5), and be equipped with the nut in the bottom of outside conducting strip (5), second link (602) with outside conducting strip (5) are through wearing to pass first via hole second via hole and spiro union in bolt (11) in the nut link to each other.

6. The BMS motherboard and BDU integrated structure according to claim 1, wherein:

the BDU electrical device (7) is connected with a low-voltage connector (9) arranged on the front panel (201);

the BDU lower shell (3) comprises a bottom wall provided with a front side wall (301) and a rear side wall (302), and a placement groove (10) for positioning and placing the low-voltage connector (9) before installation is arranged on the bottom wall.

7. The BMS motherboard and BDU integrated structure according to claim 6, wherein:

in the direction perpendicular to the front side wall (301) to the rear side wall (302), connecting side walls connecting two ends of the front side wall (301) and the rear side wall (302) are arranged on the bottom wall, and the BDU electric device (7) and the BMS main board (4) are positioned in an area formed by the bottom wall, the front side wall (301), the rear side wall (302) and the two connecting side walls;

and the two connecting side walls are respectively provided with a slave board connector (12) connected with the BMS main board (4), and the slave board connectors (12) are used for being connected with BMS slave boards in the battery pack.

8. The BMS motherboard and BDU integrated structure according to claim 6, wherein:

a plurality of fixing columns (14) are arranged on the bottom wall at intervals, each fixing column (14) extends and is arranged along the height direction of the BDU, and the BMS main board (4) is arranged between each fixing column (14) and the BDU upper shell (13).

9. The BMS motherboard and BDU integrated structure according to any one of claims 1 to 8, characterized in that:

the BDU lower shell (3) is arranged on the BDU upper shell (13), and in the height direction of the BDU lower shell (3), the projection of the BDU upper shell (13) covers the BDU lower shell (3) and the connection point of the BDU electric device (7) and the external conductive row (5).

10. A battery pack, characterized in that:

an integrated structure comprising the BMS motherboard of any of claims 1 to 9 and a BDU.

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