Power battery pack and vehicle

Abstract

The utility model belongs to the technical field of batteries, and discloses a power battery pack and a vehicle, the power battery pack comprises a box body, a partition plate, a total negative bridging copper bar and a liquid cooling assembly, the battery pack is divided into two areas, namely a power distribution bin for accommodating a power distribution box and a battery bin for accommodating a battery module, and the power distribution bin and the battery bin are independently sealed and arranged in different areas through the partition plate; the battery module and the distribution box are connected through the copper bars, the maintenance, disassembly and assembly of the battery module and the distribution box are not influenced mutually, the sealing performance and safety of the battery pack body are not influenced, the energy density can be improved to the maximum extent, the maintenance and safety can be achieved, the total negative bridging copper bars penetrate through the partition plates, and the total negative bridging copper bars and the partition plates are formed through injection molding, so that the sealing performance and reliability of the whole battery pack are ensured; the liquid cooling assembly comprises a liquid cooling pipe and an external pipe, the liquid cooling pipe fixedly penetrates through the through hole and is connected to the liquid cooling plate of the battery module, the external pipe is detachably connected with the liquid cooling pipe, conventional plastic cooling pipe internal connection is replaced, long-distance conveying in the battery pack is avoided, and the liquid cooling pipe does not need to be pulled out and inserted in the later period.

Description

Technical Field

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

[0002] The power battery system consists of a battery pack and its accessory structures, high and low voltage wiring harnesses, as well as electrical components such as a distribution box, BDU relays, and high and low voltage connectors.

[0003] To facilitate installation and power output, electrical components such as the distribution box, BDU relays, high and low voltage connectors are generally installed in the front of the battery box. However, this will take up too much space in the vehicle, making the layout of the entire vehicle not compact. In addition, a long cable is required to connect the low-voltage battery and the power battery pack, which increases the difficulty of wiring and related costs. In addition, there are sealing problems with the battery pack shell at the crossing point. Moreover, if the battery system fails, it is usually necessary to first remove the battery pack from the vehicle as a whole, and then open the box cover to check the problem item by item, which is not conducive to maintenance and diagnosis. At the same time, conventional plastic cooling pipes are arranged in the battery pack. In order to achieve a better cooling effect, they need to be arranged over a long distance, occupying a large space and precise cutting. When repairing the battery pack, the cooling pipes need to be removed, which may cause coolant leakage and contaminate the battery module, affecting the reliability of the battery pack.

[0004] Therefore, there is an urgent need for power battery packs and vehicles to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a power battery pack, in which the distribution box and the battery module are independently sealed, arranged in partitions, and maintained and disassembled without affecting each other. They are independently sealed, arranged in partitions, and connected by copper bars. The maintenance and disassembly of the battery module and the distribution box do not affect each other, and do not affect the sealing and safety of the battery pack body.

[0006] In order to solve the above problems existing in the prior art, the utility model adopts the following technical solutions:

[0007] Power battery pack, including:

[0008] A box body, wherein the box body is provided with a through hole, and the box body comprises a power distribution compartment and a battery compartment, wherein the power distribution compartment has a first accommodating cavity for accommodating a power distribution box, and the battery compartment has a second accommodating cavity for accommodating a battery module;

[0009] A partition, the partition is arranged between the power distribution compartment and the battery compartment, and the partition is used to separate the first accommodating cavity and the second accommodating cavity;

[0010] A total negative crossover copper bar, the total negative crossover copper bar is passed through the partition, and the total negative crossover copper bar and the partition are injection molded, one end of the total negative crossover copper bar is connected to the total negative interface of the distribution box, and the other end of the total negative crossover copper bar is connected to the negative electrode of the battery module through the module negative electrode copper bar;

[0011] A liquid cooling assembly, the liquid cooling assembly comprising a liquid cooling pipe and an external pipe, the liquid cooling pipe is fixedly inserted through the through hole and connected to the liquid cooling plate of the battery module, and the external pipe is detachably connected to the liquid cooling pipe.

[0012] Preferably, the power battery pack also includes a fuse and a total positive cross-over copper bar, the fuse is installed on the box body, the total positive cross-over copper bar is penetrated through the partition, and the total positive cross-over copper bar and the partition are injection molded, one end of the total positive cross-over copper bar is connected to the fuse through the fuse copper bar, and the other end of the total positive cross-over copper bar is connected to the positive electrode of the battery module through the module positive electrode copper bar.

[0013] Preferably, the power battery also includes a first connecting member and a sealing plate, a mounting opening is provided at the bottom of the power distribution bin, the sealing plate is arranged at the mounting opening, a first mounting hole is provided on the sealing plate, a first connecting hole is provided at the bottom edge of the power distribution bin, and the first connecting member passes through the first mounting hole and is connected to the first connecting hole.

[0014] Preferably, the power battery further includes a first sealing gasket, which is sandwiched between the sealing plate and the bottom edge of the power distribution compartment.

[0015] Preferably, along the direction from the bottom of the box body to the top of the box body, the cross-sectional areas of the power distribution compartment and the battery compartment gradually decrease, and the longitudinal cross-sectional shape of the power distribution box is a trapezoidal structure.

[0016] Preferably, the power battery further includes a discharge connector and a charge connector, the power distribution box is provided with a positive charging interface and a negative charging interface, the positive charging interface is connected to the positive pole of the charge connector through a copper busbar, the negative charging interface is connected to the negative pole of the charge connector through a copper busbar, the power distribution box is further provided with a positive discharge interface and a negative discharge interface, the positive discharge interface is connected to the positive pole of the discharge connector through a copper busbar, the negative discharge interface is connected to the negative pole of the discharge connector through a copper busbar.

[0017] Preferably, the box body further includes a first upper cover and a second upper cover, the top of the power distribution compartment and the top of the battery compartment both have openings, and the first upper cover and the second upper cover are respectively covered on the opening of the power distribution compartment and the opening of the battery compartment.

[0018] Preferably, the power battery pack also includes a second connecting member, there are multiple second connecting members, the first upper cover and the second upper cover are both provided with a second mounting hole, the top edges of the power distribution compartment and the battery compartment are both provided with a second connecting hole, and the second connecting member passes through the second mounting hole and is connected to the second connecting hole.

[0019] Preferably, the power battery pack further includes a second sealing gasket, which is sandwiched between the top of the box body and the first upper cover and the second upper cover.

[0020] In order to achieve the above-mentioned object, the utility model also provides a vehicle, including a base and the above-mentioned power battery pack, wherein the power battery pack is installed on the base.

[0021] The beneficial effects of the utility model are:

[0022] The power battery pack provided by the utility model comprises a box body including a distribution compartment and a battery compartment. The distribution compartment has a first accommodation chamber for accommodating a distribution box, and the battery compartment has a second accommodation chamber for accommodating a battery module. A partition is arranged between the distribution compartment and the battery compartment, and the partition is used to separate the first accommodation chamber and the second accommodation chamber. The battery module and the distribution box are independently sealed and arranged in partitions through the partition, and are connected through a copper busbar. The maintenance and disassembly of the battery module and the distribution box do not affect each other, and do not affect the sealing and safety of the battery pack body, which can maximize the energy density and achieve maintenance and safety. The total negative cross-connect copper busbar is passed through the partition, and the total negative cross-connect copper busbar and the partition are injection molded to achieve the copper busbar passing through the partition in a sealed manner, thereby ensuring the sealing and reliability of the battery pack as a whole. One end of the total negative cross-connect copper busbar is connected to the total negative interface of the distribution box, and the other end of the total negative cross-connect copper busbar is connected to the negative electrode of the battery module through the module negative copper busbar. The liquid cooling assembly includes a liquid cooling tube and an external tube. The liquid cooling tube is fixedly inserted into the through hole and connected to the liquid cooling plate of the battery module. The external tube is detachably connected to the liquid cooling tube. The external tube is connected to the liquid cooling tube by quick plugging, replacing the internal connection of the conventional plastic cooling tube, avoiding long-distance transportation in the battery pack, and eliminating the need to plug and unplug the liquid cooling tube later. It occupies a small space and has a high degree of integration. When repairing the battery pack, it is necessary to avoid plugging and unplugging the liquid cooling tube in the box to prevent the coolant from contaminating the battery module. The welding connection method has better strength, sealing and durability.

[0023] The vehicle provided by the utility model includes a base and a power battery pack, and the power battery pack is installed on the base. The battery module and the distribution box are independently sealed by a partition, arranged in partitions, and connected by a copper busbar, replacing the traditional connector wiring harness connection, effectively reducing the bending space occupation and reducing costs. The maintenance and disassembly of the battery module and the distribution box do not affect each other, and do not affect the sealing and safety of the battery pack body, which can maximize the energy density and achieve maintenance and safety. The total negative cross-connect copper busbar is fixedly connected to the partition through an injection molding process, so that the copper busbar can pass through the partition in a sealed manner, ensuring the overall sealing and reliability of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a power battery pack provided by an embodiment of the utility model;

[0025] Figure 2 Schematic diagram of the explosion of the power battery pack provided in the embodiment of the utility model Figure 1 ;

[0026] Figure 3 A schematic diagram of the structure of a power distribution box provided in an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the internal structure of a power battery pack provided by an embodiment of the utility model;

[0028] Figure 5 Schematic diagram of the explosion of the power battery pack provided in the embodiment of the utility model Figure 2 .

[0029] Reference numerals:

[0030] 100. distribution box; 200. battery module; 1. box body; 2. distribution compartment; 3. battery compartment; 4. first accommodating chamber; 5. second accommodating chamber; 6. partition; 7. total negative jumper copper bar; 8. module negative copper bar; 9. liquid cooling pipe; 10. external pipe; 11. liquid cooling plate; 12. fuse; 13. total positive jumper copper bar; 14. fuse copper bar; 15. module positive copper bar; 16. first connecting piece; 17. sealing plate; 18. mounting port; 19. first mounting hole; 20. first connecting hole; 21. first sealing gasket; 22. discharge connector; 23. charging connector; 24. positive charging interface; 25. negative charging interface; 26. positive discharge interface; 27. negative discharge interface; 28. first upper cover; 29. ​​second upper cover; 30. second connecting piece; 31. second mounting hole; 32. second connecting hole; 33. second sealing gasket. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 or an electrical connection; 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.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] like Figure 1-Figure 5As shown, in this embodiment, the power battery pack includes a box body 1, a partition 6, a total negative cross-connect copper bar 7 and a liquid cooling assembly. Among them, the box body 1 is provided with a through hole, and the box body 1 includes a power distribution compartment 2 and a battery compartment 3. The power distribution compartment 2 has a first accommodating chamber 4 for accommodating the power distribution box 100, and the battery compartment 3 has a second accommodating chamber 5 for accommodating the battery module 200. The partition 6 is arranged between the power distribution compartment 2 and the battery compartment 3, and the partition 6 is used to separate the first accommodating chamber 4 and the second accommodating chamber 5. The total negative cross-connect copper bar 7 is penetrated by the partition 6, and the total negative cross-connect copper bar 7 and the partition 6 are injection molded. One end of the total negative cross-connect copper bar 7 is connected to the total negative interface of the power distribution box 100, and the other end of the total negative cross-connect copper bar 7 is connected to the negative electrode of the battery module 200 through the module negative electrode copper bar 8. The liquid cooling assembly includes a liquid cooling tube 9 and an external tube 10. The liquid cooling tube 9 is fixedly inserted into the through hole and connected to the liquid cooling plate 11 of the battery module 200. The external tube 10 is detachably connected to the liquid cooling tube 9. Specifically, the battery pack is divided into two areas, namely, a distribution compartment 2 for accommodating the distribution box 100 and a battery compartment 3 for accommodating the battery module 200. The battery module 200 and the distribution box 100 are independently sealed by a partition 6, arranged in partitions, and connected by copper busbars, replacing the traditional connector wiring harness connection, effectively reducing the bending space occupied and reducing costs. The maintenance and disassembly of the battery module 200 and the distribution box 100 do not affect each other, and do not affect the sealing and safety of the battery pack body, which can maximize the energy density and achieve maintenance and safety. The total negative interface of the distribution box 100 is connected to the negative electrode of the battery module 200 through the total negative jumper copper bar 7. The total negative jumper copper bar 7 is fixedly connected to the partition 6 through the injection molding process, so that the copper bar passes through the partition 6 in a sealed manner, ensuring the sealing and reliability of the battery pack as a whole. The liquid cooling tube 9 is made of aluminum material. The liquid cooling tube 9 is passed through the through hole of the side wall of the box body 1 and is welded and fixed to the box body 1. The external pipe 10 is L-shaped. The external pipe 10 is connected to the liquid cooling tube 9 by a quick plug-in method, replacing the conventional plastic cooling tube internal connection, avoiding long-distance transportation in the battery pack, and no need to plug and unplug the liquid cooling tube 9 later. It occupies a small space and has a high degree of integration. When repairing the battery pack, avoid plugging and unplugging the liquid cooling tube 9 in the box body 1 to avoid contaminating the battery module 200 with coolant. The welding connection method has better strength, sealing and durability.

[0036] Further, continue to refer to Figure 1-Figure 5The power battery pack also includes a fuse 12 and a total positive crossover copper bar 13. The fuse 12 is installed in the box body 1. The total positive crossover copper bar 13 is passed through the partition 6, and the total positive crossover copper bar 13 is injection molded with the partition 6. One end of the total positive crossover copper bar 13 is connected to the fuse 12 through the fuse copper bar 14, and the other end of the total positive crossover copper bar 13 is connected to the positive electrode of the battery module 200 through the module positive copper bar 15. Specifically, the total positive crossover copper bar 13 is used to connect the positive electrode of the battery module 200 and the fuse 12, and the total positive crossover copper bar 13 is injection molded with the partition 6 to form a seal, so that the copper bar passes through the partition 6 in a sealed manner, ensuring the sealing and reliability of the battery pack as a whole.

[0037] Further, continue to refer to Figure 1-Figure 5 The power battery further includes a first connector 16 and a sealing plate 17. A mounting opening 18 is provided at the bottom of the power distribution bin 2. The sealing plate 17 is disposed at the mounting opening 18. A first mounting hole 19 is provided at the sealing plate 17. A first connecting hole 20 is provided at the bottom edge of the power distribution bin 2. The first connector 16 passes through the first mounting hole 19 and is connected to the first connecting hole 20. Specifically, the first connector 16 is a nut. The power distribution bin 2 and the sealing plate 17 are fixedly mounted on the sealing plate 17 by the riveting studs on the sealing plate 17. The riveting studs can ensure the sealing performance. The locking and fixing are then completed by multiple first connectors 16. The sealing plate 17 and the power distribution bin 2 are then installed upward from the mounting opening 18 at the bottom of the box body 1. The power battery also includes a first sealing gasket 21, which is clamped between the sealing plate 17 and the bottom edge of the distribution box 2. The first sealing gasket 21 is made of silicone. The top seal between the sealing plate 17 and the box body 1 is completed by the first sealing gasket 21. After installation, the low-voltage wiring harness and the high-voltage board, the low-voltage relay control interface and the high-voltage relay acquisition control interface are connected to the wiring harness according to the low-voltage schematic diagram. The low-voltage relay control interface is connected to the battery pack low-voltage output interface and the high-voltage board through a low-voltage line, which is used to control the relay in the distribution box 100. The high-voltage relay acquisition control interface is connected to the high-voltage board through a low-voltage wiring harness, which is used to detect the adhesion status of the two ends of the relay in the distribution box 100. Finally, the low-voltage wiring harness is connected to the low-voltage connector on the front panel to output outside the battery pack.

[0038] Further, continue to refer to Figure 1-Figure 5 Along the direction from the bottom of the box body 1 to the top of the box body 1, the cross-sectional areas of the power distribution compartment 2 and the battery compartment 3 gradually decrease, and the longitudinal cross-sectional shape of the power distribution box 100 is a trapezoidal structure, which improves the injection molding strength and the anti-rotation method.

[0039] Further, continue to refer to Figure 1-Figure 5The power battery also includes a discharge connector 22 and a charge connector 23. The distribution box 100 is provided with a positive charging interface 24 and a negative charging interface 25. The positive charging interface 24 is connected to the positive pole of the charge connector 23 through a copper busbar, and the negative charging interface 25 is connected to the negative pole of the charge connector 23 through a copper busbar. The distribution box 100 is also provided with a positive discharge interface 26 and a negative discharge interface 27. The positive discharge interface 26 is connected to the positive pole of the discharge connector 22 through a copper busbar, and the negative discharge interface 27 is connected to the negative pole of the discharge connector 22 through a copper busbar. Specifically, the distribution box 100 is open from top to bottom. Since the high and low voltage connectors on the front panel of the battery pack are close to each other and the distance between the positive and negative poles is small, frequent disassembly and assembly of the copper busbars of the connectors is prone to high voltage hazards. Therefore, the copper busbars connected to the distribution box 100 are connected and installed from top to bottom. The purpose is to remove the distribution box 100 from the bottom without removing the nuts connecting the distribution box 100 and the copper busbars, and the bolts fixing the copper busbars and the connectors. This allows the copper busbars and connectors to remain intact, and the connectors are integrated with the copper busbars. The disassembly and assembly effect is more reliable, the surrounding space can be tighter, and the space utilization rate is higher.

[0040] Further, continue to refer to Figure 1-Figure 5 The box body 1 further includes a first upper cover 28 and a second upper cover 29. The top of the power distribution compartment 2 and the top of the battery compartment 3 both have openings. The first upper cover 28 and the second upper cover 29 are respectively covered with the openings of the power distribution compartment 2 and the openings of the battery compartment 3. Specifically, the power distribution box 100 and the battery module 200 can be taken out or installed respectively by opening the first upper cover 28 and the second upper cover 29. The power battery pack further includes a second connector 30. There are multiple second connectors 30. The first upper cover 28 and the second upper cover 29 are both provided with a second mounting hole 31. The top edges of the power distribution compartment 2 and the battery compartment 3 are both provided with a second connecting hole 32. The second connecting member 30 passes through the second mounting hole 31 and is connected to the second connecting hole 32. The first upper cover 28 and the second upper cover 29 can be fixed to the box body 1 through the second connector 30 to seal the power distribution compartment 2 and the battery compartment 3.

[0041] Further, continue to refer to Figure 1-Figure 5 The power battery pack further includes a second sealing gasket 33, which is sandwiched between the top of the box body 1 and the first upper cover 28 and the second upper cover 29. Specifically, the second sealing gasket 33 is made of silicone material and is used to seal the first upper cover 28 and the second upper cover 29 with the top of the box body 1. The maintenance and disassembly of the distribution box 100 in the power distribution compartment 2 does not affect the sealing and safety of the battery body, so as to achieve the effect that the battery module and the distribution box 100 are independent of each other.

[0042] This embodiment also provides a vehicle, including a base and the above-mentioned power battery pack, which is installed on the base. Specifically, the battery module 200 and the distribution box 100 are independently sealed by the partition 6, arranged in partitions, and connected by copper busbars, replacing the traditional connector wiring harness connection, effectively reducing the bending space occupation and cost reduction, and the maintenance and disassembly of the battery module 200 and the distribution box 100 do not affect each other, and do not affect the sealing and safety of the battery pack body, which can maximize the energy density and achieve maintenance and safety. The total negative cross-connect copper busbar 7 is fixedly connected to the partition 6 through an injection molding process, so that the copper busbar passes through the partition 6 in a sealed manner, ensuring the sealing and reliability of the battery pack as a whole.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A power battery pack, characterized in that: include: A box body (1), the box body (1) being provided with a through hole, the box body (1) comprising a power distribution compartment (2) and a battery compartment (3), the power distribution compartment (2) having a first accommodating cavity (4) for accommodating a power distribution box (100), and the battery compartment (3) having a second accommodating cavity (5) for accommodating a battery module (200); A partition (6), the partition (6) being arranged between the power distribution compartment (2) and the battery compartment (3), the partition (6) being used to separate the first accommodating chamber (4) and the second accommodating chamber (5); A total negative cross-connect copper bar (7), the total negative cross-connect copper bar (7) is passed through the partition (6), and the total negative cross-connect copper bar (7) and the partition (6) are injection molded, one end of the total negative cross-connect copper bar (7) is connected to the total negative interface of the distribution box (100), and the other end of the total negative cross-connect copper bar (7) is connected to the negative electrode of the battery module (200) through the module negative electrode copper bar (8); A liquid cooling component, the liquid cooling component comprising a liquid cooling pipe (9) and an external pipe (10), the liquid cooling pipe (9) being fixedly arranged through the through hole and connected to a liquid cooling plate (11) of the battery module (200), and the external pipe (10) being detachably connected to the liquid cooling pipe (9).

2. The power battery pack according to claim 1, characterized in that: The power battery pack further comprises a fuse (12) and a total positive crossover copper bar (13), wherein the fuse (12) is mounted on the box (1), the total positive crossover copper bar (13) is passed through the partition (6), and the total positive crossover copper bar (13) and the partition (6) are injection molded, one end of the total positive crossover copper bar (13) is connected to the fuse (12) via a fuse copper bar (14), and the other end of the total positive crossover copper bar (13) is connected to the positive electrode of the battery module (200) via a module positive electrode copper bar (15).

3. The power battery pack according to claim 1, characterized in that: The power battery further comprises a first connecting member (16) and a sealing plate (17); a mounting opening (18) is provided at the bottom of the power distribution compartment (2); the sealing plate (17) is arranged at the mounting opening (18); a first mounting hole (19) is provided on the sealing plate (17); a first connecting hole (20) is provided at the bottom edge of the power distribution compartment (2); the first connecting member (16) passes through the first mounting hole (19) and is connected to the first connecting hole (20).

4. The power battery pack according to claim 3, characterized in that: The power battery further comprises a first sealing gasket (21), wherein the first sealing gasket (21) is sandwiched between the sealing plate (17) and the bottom edge of the power distribution compartment (2).

5. The power battery pack according to claim 1, characterized in that: Along the direction from the bottom of the box body (1) to the top of the box body (1), the cross-sectional areas of the power distribution compartment (2) and the battery compartment (3) gradually decrease, and the longitudinal cross-sectional shape of the power distribution box (100) is a trapezoidal structure.

6. The power battery pack according to claim 1, characterized in that: The power battery further comprises a discharge connector (22) and a charge connector (23); the power distribution box (100) is provided with a positive charge interface (24) and a negative charge interface (25); the positive charge interface (24) is connected to the positive electrode of the charge connector (23) via a copper busbar, and the negative charge interface (25) is connected to the negative electrode of the charge connector (23) via a copper busbar; the power distribution box (100) is further provided with a positive discharge interface (26) and a negative discharge interface (27); the positive discharge interface (26) is connected to the positive electrode of the discharge connector (22) via a copper busbar, and the negative discharge interface (27) is connected to the negative electrode of the discharge connector (22) via a copper busbar.

7. The power battery pack according to claim 1, characterized in that: The box body (1) further comprises a first upper cover (28) and a second upper cover (29); the top of the power distribution compartment (2) and the top of the battery compartment (3) both have openings; the first upper cover (28) and the second upper cover (29) are respectively arranged to cover the opening of the power distribution compartment (2) and the opening of the battery compartment (3).

8. The power battery pack according to claim 7, characterized in that: The power battery pack further comprises a second connecting member (30), the number of the second connecting members (30) is plural, the first upper cover (28) and the second upper cover (29) are both provided with a second mounting hole (31), the top edges of the power distribution compartment (2) and the battery compartment (3) are both provided with a second connecting hole (32), and the second connecting member (30) passes through the second mounting hole (31) and is connected to the second connecting hole (32).

9. The power battery pack according to claim 7, characterized in that: The power battery pack further comprises a second sealing gasket (33), wherein the second sealing gasket (33) is sandwiched between the top of the box body (1) and the first upper cover (28) and the second upper cover (29).

10. A vehicle, characterized in that It comprises a base and the power battery pack according to any one of claims 1 to 9, wherein the power battery pack is mounted on the base.

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