Battery pack and vehicle

Abstract

The utility model discloses a battery pack and a vehicle. The battery pack comprises a shell; the battery pack is positioned in the shell; an electrical module including a first electrical portion and a second electrical portion; wherein the first electrical part and the second electrical part are located at the two ends of the battery pack in the first direction respectively, the battery pack is located between the first electrical part and the second electrical part in the first direction, and the first electrical part and the second electrical part are arranged in the second direction; the second direction is perpendicular to the first direction; the height size of the battery pack is larger than or equal to the height size of the first electrical part, and the height size of the battery pack is larger than or equal to the height size of the second electrical part. According to the battery pack provided by the embodiment of the utility model, the size increase of the battery pack caused by overhigh height is avoided, and the utilization rate of the internal space of the battery pack is improved.

Description

Technical Field

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

[0002] With the iteration and update of vehicle technology, the technology of battery-body integration continues to develop, that is, the battery pack is directly integrated into the chassis of the vehicle to achieve a higher degree of integration. The battery pack includes a shell, an upper cover, a battery pack and electrical connection components. The battery pack also includes an upper cover, and a mounting cavity is defined between the shell and the upper cover. The battery pack and the electrical connection components are arranged in the mounting cavity, that is, the battery pack and the electrical connection components are located between the shell and the upper cover. The upper cover of the battery pack is located at the bottom of the vehicle body and is used to act as a chassis of the vehicle body, bearing the weight of the entire battery pack.

[0003] In the prior art, the electrical connection components of the battery pack are higher than the battery group, resulting in an uneven outer contour of the battery pack, thus leaving room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery pack to improve the utilization rate of the internal space of the battery pack.

[0005] The utility model also provides a vehicle.

[0006] A battery pack according to an embodiment of the first aspect of the utility model includes: a shell; a battery pack, the battery pack is located in the shell; an electrical module, the electrical module includes a first electrical part and a second electrical part; wherein, the first electrical part and the second electrical part are respectively located at two ends of the battery pack in a first direction, the battery pack is located between the first electrical part and the second electrical part in the first direction, the first electrical part and the second electrical part are both arranged along a second direction, and the second direction is perpendicular to the first direction; the height dimension of the battery pack is greater than or equal to the height dimension of the first electrical part, and the height dimension of the battery pack is greater than or equal to the height dimension of the second electrical part.

[0007] According to the battery pack of the embodiment of the utility model, by setting the electrical module as the first electrical part and the second electrical part, the electrical layout in the battery pack can be facilitated, and the spatial arrangement of the electrical module inside the battery pack can be optimized. In the prior art, the space occupied by the electrical module in the battery pack is smaller than the space occupied by the battery pack, but the height dimension of the electrical module is larger than the height dimension of the battery pack. In order to accommodate the electrical module in the shell, it is necessary to increase the size of the shell, which also increases the size of the entire battery pack, reducing the utilization rate of the internal space of the battery pack. In the present application, the height dimension of the battery pack is greater than or equal to the height dimension of the first electrical part and the second electrical part, thereby avoiding the increase in the size of the battery pack due to excessive height and improving the utilization rate of the internal space of the battery pack.

[0008] In some embodiments, a first inspection opening is provided on the first side wall of the shell corresponding to the first electrical part, and the shell further includes a first inspection cover covering the first inspection opening, and the first inspection cover is openably connected to the first side wall.

[0009] In some embodiments, the battery pack also includes a support frame, which is located in the shell, and the first electrical part is installed on the support frame; the first electrical part includes a first detachable device that is detachably mounted on the support frame, and the projection of the first detachable device on the first side wall is completely located in the first inspection port.

[0010] In some embodiments, a plurality of first mounting holes are provided on a side of the support frame facing the first inspection port, and the plurality of first mounting holes are distributed in sequence along the second direction; the bottom of the first detachable device is a mounting plate, and the mounting plate is placed on the support frame, and a downwardly extending flange is formed on the side of the mounting plate facing the first inspection port, and a second mounting hole corresponding to the first mounting hole is provided on the flange, so that fasteners can be passed through the second mounting hole and the first mounting hole in sequence for fixation.

[0011] In some embodiments, the support frame includes at least two support cross bars distributed along the first direction, each of the support cross bars is arranged along the second direction, at least two of the support cross bars are provided with the first mounting holes, and the support cross bars close to the first inspection port are provided with avoidance grooves corresponding to the first mounting holes away from the first inspection port; at least two flanges distributed along the first direction are provided on the mounting plate, and each flange is provided with the second mounting hole.

[0012] In some embodiments, the support frame also includes four supporting longitudinal rods, each of which extends along the first direction, and the four supporting longitudinal rods are respectively arranged in sequence as a first longitudinal rod, a second longitudinal rod, a third longitudinal rod and a fourth longitudinal rod; the supporting cross rod is connected between the first longitudinal rod and the second longitudinal rod, and the supporting cross rod is connected between the third longitudinal rod and the fourth longitudinal rod; the first electrical part includes two first detachable components, and the two first detachable components are respectively located on the supporting cross rods on both sides; the first electrical part also includes: a first electrical shell and a second detachable component, the first electrical shell is installed on the second longitudinal rod and the third longitudinal rod, and the second detachable component is detachably connected to the first electrical shell.

[0013] In some embodiments, the second electrical part includes a second electrical housing, and the second electrical part is detachably connected to the housing.

[0014] In some embodiments, it also includes: a liquid cooling plate, wherein the liquid cooling plate is located below the battery pack and the electrical module, and the bottom plate of the shell is a bottom protective plate located below the liquid cooling plate.

[0015] In some embodiments, the liquid cooling plate is provided with a second inspection port corresponding to the second electrical part, and the second electrical part is detachable and can be removed from the bottom through the second inspection port; the bottom guard plate is detachably connected under the liquid cooling plate, and the bottom guard plate covers the second inspection port.

[0016] In some embodiments, the bottom guard plate is provided with a first sealing ring arranged around the second inspection port, and the first sealing ring abuts against the liquid cooling plate; or, it also includes a second inspection cover covering the second inspection port, the second inspection cover is detachably connected to the liquid cooling plate, the second inspection cover is located above the bottom guard plate, and the second inspection cover is provided with a second sealing ring arranged around the second inspection port.

[0017] The vehicle according to the embodiment of the second aspect of the utility model further includes the battery pack of the embodiment of the first aspect of the utility model. By adopting the above-mentioned battery pack, the degree of integration between the vehicle and the battery pack can be improved.

[0018] 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

[0019] 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:

[0020] Figure 1is an overall schematic diagram of a battery pack according to an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram showing the positional relationship between the electrical module and the battery pack at one viewing angle;

[0022] Figure 3 It is a schematic diagram of the positional relationship between the electrical module and the battery pack from another perspective;

[0023] Figure 4 is a schematic structural diagram of an electrical module according to an embodiment of the utility model;

[0024] Figure 5 is an exploded view of a battery pack according to an embodiment of the utility model at one viewing angle;

[0025] Figure 6 is a schematic diagram of a partial structure of a battery pack according to an embodiment of the utility model;

[0026] Figure 7 It is a partial structural diagram of a battery pack according to an embodiment of the utility model at a viewing angle;

[0027] Figure 8 is a partial structural diagram of a battery pack including a wiring harness according to an embodiment of the utility model;

[0028] Fig. 9 This is a partial structural diagram of a battery pack according to an embodiment of the utility model without a wiring harness

[0029] Fig.10 is a schematic structural diagram of a support frame according to an embodiment of the utility model;

[0030] Fig.11 It is a structural schematic diagram of a mounting plate and a support frame assembled at one viewing angle according to an embodiment of the utility model;

[0031] Fig.12 It is a schematic diagram of the structure of the mounting plate and the support frame according to an embodiment of the utility model assembled from another viewing angle;

[0032] Fig.13 is a structural schematic diagram of the mounting plate and the support frame according to an embodiment of the utility model assembled at another viewing angle;

[0033] Fig.14 is a structural schematic diagram of a portion of a first detachable component and a mounting plate according to an embodiment of the utility model;

[0034] Fig.15 is a structural schematic diagram of a portion of a first detachable component and a mounting plate according to an embodiment of the utility model;

[0035] Fig.16It is a structural schematic diagram of a second detachable component and a first electrical housing according to an embodiment of the utility model;

[0036] Fig.17 It is an overall schematic diagram of a vehicle according to an embodiment of the utility model.

[0037] Reference numerals:

[0038] Vehicles 1000;

[0039] Battery pack 100;

[0040] Shell 1, first side wall 10, first inspection opening 11, first fixing hole 111, first inspection cover 12, second flange 13;

[0041] Battery pack 2;

[0042] Electrical module 3, first electrical part 30, first BDU module 301, first electrical shell 3011, BMS main control board 302, BMS slave control board 303, mounting plate 304, flange 305, second mounting hole 306, first electrical shell 3011, protective cover 3012, fuse 3013, second electrical part 31, second BDU module 311, second electrical shell 312, electrical connection structure 32, wiring harness 321, copper bus 322, first bolt 34, second bolt 35;

[0043] Support frame 4, support longitudinal rod 40, first longitudinal rod 401, second longitudinal rod 402, third longitudinal rod 403, fourth longitudinal rod 404, support cross rod 41, first mounting hole 411, avoidance groove 412;

[0044] A partition assembly 5, a first partition 51, and a second partition 52;

[0045] Liquid cooling plate 6, second inspection port 61, first sealing ring 62;

[0046] Bottom guard plate 7;

[0047] A second inspection cover 8, a second sealing ring 81;

[0048] The first direction D1 is the front-rear direction, and the second direction D2 is the left-right direction. DETAILED DESCRIPTION

[0049] 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.

[0050] In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, 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, unless otherwise specified, "multiple" means two or more.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Reference below Figure 1-Figure 17 A battery pack 100 according to an embodiment of the present invention is described.

[0053] like Figure 1-Figure 4 As shown, the battery pack 100 according to the embodiment of the present invention includes a housing 1 , a battery group 2 and an electrical module 3 .

[0054] The battery pack 2 is located in the housing 1 .

[0055] The electrical module 3 includes a first electrical part 30 and a second electrical part 31; wherein the first electrical part 30 and the second electrical part 31 are respectively located in the battery pack 100 in the first direction D1 (such as Figure 1 In the first direction D1, the battery pack 2 is located between the first electrical part 30 and the second electrical part 31. Specifically, in the first direction D1, the battery pack 100 includes the first electrical part 30, the battery pack 2, and the second electrical part 31 in sequence.

[0056] The first electrical part 30 and the second electrical part 31 are both along the second direction D2 (eg Figure 1 Specifically, the first electrical part 30 is arranged at the rear side of the battery pack 2 along the first direction D1, and the second electrical part 31 is arranged at the front side of the battery pack 2 along the first direction D1.

[0057] In the prior art, the electrical module includes a BDU (i.e., Battery Disconnect Unit) and a BMS (i.e., Battery Management System). The BDU implements the functions of high voltage on / off and safety protection through the control of the BMS. In actual applications, the electrical modules are concentrated on one side of the battery pack, and a long bus is set to realize the electrical connection inside the battery pack, and the long bus includes at least three.

[0058] The present application divides the electrical module 3 into a first electrical part 30 and a second electrical part 31 , which can reduce the circuit connections running through the front and back of the battery pack 100 , thereby reducing the application cost of the electrical connection and the weight of the battery pack 100 , and optimizing the electrical layout within the battery pack 100 .

[0059] Unlike the closest prior art, the present application Figure 3 As shown, the height dimension d0 of the battery pack 2 is greater than or equal to the height dimension d1 of the first electrical part 30, and the height dimension d0 of the battery pack 2 is greater than or equal to the height dimension d2 of the second electrical part 31. According to the wooden barrel principle, the height dimension of the shell 1 reflects the height dimension of the battery pack 100, and the height dimension of the shell 1 is determined by the component with the largest height dimension inside the shell 1. In the present application, the height dimension d0 of the battery pack 2 is greater than or equal to the height dimension of the electrical module 3, so the height dimension d0 of the battery pack 2 determines the height dimension of the battery pack 100, and the battery pack 2 is the core component inside the battery pack 100. It is more reasonable for the height dimension of the battery pack 100 to be determined by the battery pack 2, and the structure of the battery pack 100 is optimized.

[0060] It can be understood that both the first direction D1 and the second direction D2 are perpendicular to the height direction.

[0061] According to the battery pack 100 of the embodiment of the utility model, by setting the electrical module 3 as the first electrical part 30 and the second electrical part 31, the electrical layout in the battery pack 100 can be facilitated, and the spatial arrangement of the electrical module 3 inside the battery pack 100 can be optimized. In the prior art, the space occupied by the electrical module in the battery pack is smaller than the space occupied by the battery pack, and the height dimension of some electrical modules is larger than the height dimension of the battery pack. In order to accommodate the electrical module in the shell, it is necessary to increase the size of the shell, which also increases the size of the entire battery pack and reduces the utilization rate of the internal space of the battery pack. In the present application, the height dimension d0 of the battery pack 2 is greater than or equal to the height dimension of the electrical module 3, thereby avoiding the increase in the size of the battery pack 100 caused by the excessive height of the electrical module 3 and improving the utilization rate of the internal space of the battery pack 100.

[0062] like Figure 2 and Figure 4As shown, in some embodiments, the first electrical portion 30 is electrically connected to the second electrical portion 31 , and the first electrical portion 30 is electrically connected to the battery pack 2 .

[0063] Specifically, if Figure 4-Figure 7 As shown, the first electrical part 30 includes a first BDU module 301, a BMS main control board 302 and a BMS slave control board 303, and the second electrical part 31 includes a second BDU module 311. The BMS main control board 302 and the BMS slave control board 303 realize the functions of high voltage on / off and safety protection by controlling the first BDU module 301 and the second BDU module 311. The BMS main control board 302 and the BMS slave control board 303 are connected by a wiring harness 32, and the BMS main control board 302 and the BMS slave control board 303 are connected to the first BDU module 301 and the second BDU module 311 by a wiring harness 32. The first BDU module 301 is located in the middle of the battery pack 2 in the second direction D2, and the first BDU module 301 is connected to the battery pack 2 through a copper bus 33. The second BDU module 311 is located at the front side of the battery pack 2 in the first direction D1, and the second BDU module 311 is connected to the battery pack 2 through a copper bus 33. In the first electrical part 30 , the BMS main control board 302 , the first BDU module 301 , and the BMS slave control board 303 are sequentially arranged along the second direction D2 .

[0064] For example, Figure 8 and Fig. 9 As shown, in the first electrical module 3, the BMS slave control board 303 includes at least one, and the BMS slave control board 303 can collect and transmit the battery cell data of the battery pack 2, and transmit it to the BMS main control board 302 through the wiring harness 32. Therefore, the BMS slave control board 303 can be set according to the number of battery cells in the battery pack 2.

[0065] In some specific embodiments, in order to ensure that there is enough margin above and below the electrical module 3 to remove and install the wires during disassembly and assembly, the difference between the height dimension d0 of the battery pack 2 and the height dimension d1 of the first electrical part 30 can be set to be at least 20 mm, and the difference between the height dimension d0 of the battery pack 2 and the height dimension d2 of the second electrical part 31 can be set to be at least 20 mm.

[0066] Specifically, the BMS slave control board 303 includes two, and the two BMS slave control boards 303 are stacked along the height direction. Among them, the size of the BMS slave control board 303 in the first direction D1 is 86.5mm, the size in the second direction D2 is 240mm, and the height dimension is 19.7mm. The height of the two BMS slave control boards 303 after stacking is 48.7mm. The size of the BMS main control board 302 in the first direction D1 is 102mm, the size of the BMS main control board 302 in the second direction is 260mm, and the height dimension of the BMS main control board 302 is 24mm. The size of the first BDU module 301 in the first direction D1 is 103mm, the size of the first BDU module 301 in the second direction D2 is 153mm, and the height dimension of the first BDU module 301 is 85.5mm. Along the second direction D2, the size of the BMS slave control board 303, the BMS main control board 302 and the first BDU module 301 in the first electrical part 301 is at least 653mm.

[0067] Combination Figure 2 and Figure 3 As shown, the height dimensions of the first electrical part 30 and the second electrical part 31 are both lower than the battery pack 2 .

[0068] like Figure 6 As shown, in some embodiments, the housing 1 includes a first side wall 10. A first inspection port 11 is provided on the first side wall 10 of the housing 1, and the first inspection port 11 is provided corresponding to the position of the first electrical part 30. Through the first inspection port 11 on the housing 1, the first electrical part 30 corresponding to the position of the first inspection port 11 can be maintained without disassembling the entire battery pack 100, thereby simplifying the steps of maintaining the battery pack 100 and improving the maintenance efficiency.

[0069] like Figure 6 As shown, the housing 1 further includes a first inspection cover 12, which can cover the first inspection opening 11, and the first inspection cover 12 can be opened and closed and connected to the first side wall 10. The first inspection cover 12 can protect the internal structure of the battery pack 100 to prevent dust, moisture, etc. from entering the battery pack 100 through the first inspection opening 11.

[0070] Specifically, if Fig.13 As shown, the first side wall 10 is the rear side wall of the housing 1 in the first direction D1, and the first inspection opening 11 is located in the middle of the first side wall 10. The first side wall 10 has a plurality of first fixing holes 111, which are arranged at intervals along the circumference of the first inspection opening 11. The first inspection cover 12 can cover the first inspection opening 11, and the first inspection cover 12 includes a plurality of through holes corresponding to the positions of the first fixing holes 111, and the first fixing holes 111 and the through holes are connected by fasteners to improve the stability of the connection.

[0071] Specifically, if Fig. 9 As shown, the size of the first inspection port 11 in the second direction D2 is 720 mm, and the height of the first inspection port 11 is 70 mm. Compared with the first electrical part 30, the size of the first electrical part 30 in the second direction D2 can be smaller than the size of the first inspection port 11 in the second direction D2, and the height of the first electrical part 30 is smaller than the height of the first inspection port 11, so that the BMS main control board 302, the BMS slave control board 303 and the first BDU module 301 in the first electrical part 30 can be respectively passed through the first inspection port 11.

[0072] like Fig.10 As shown, in some embodiments, the battery pack 100 further includes a support frame 4, the support frame 4 is located in the housing 1, and the first electrical part 30 is installed on the support frame 4. The support frame 4 can provide support force to the first electrical part 30, reduce the shaking of the first electrical part 30 during the movement of the battery pack 100, and thus improve the safety of the battery pack 100. The first electrical part 30 includes a first detachable device, and the first detachable device is detachably mounted on the support frame 4. The first detachable device has a projection on the first side wall 10, and the projection is completely located in the first inspection port 11, that is, the first detachable device can pass through the first inspection port 11 along the first direction D1. In the electrical module 3 inside the battery pack 100, relative to the battery pack 2, the first detachable device is a consumable part, and the frequency of repair or replacement of the first detachable device is high. Therefore, the first detachable device can be taken out through the first inspection port 11 for repair and replacement without disassembling the entire battery pack 100, thereby improving the efficiency and pertinence of the repair.

[0073] Specifically, the first detachable component includes a BMS main control board 302 and a BMS slave control board 303 .

[0074] like Figure 12-13 As shown, in some embodiments, a plurality of first mounting holes 411 are provided on a side of the support frame 4 facing the first inspection port 11, and the plurality of first mounting holes 411 are distributed sequentially along the second direction D2; the bottom of the first detachable device is a mounting plate 304, and the mounting plate 304 is placed on the support frame 4, and a downwardly extending flange 305 is formed on a side of the mounting plate 304 facing the first inspection port 11, and a second mounting hole 306 corresponding to the first mounting hole 411 is provided on the flange 305, so that the first bolt 34 can pass through the second mounting hole 306 and the first mounting hole 411 sequentially for fixing.

[0075] like Fig.10 and Fig.11As shown, in some embodiments, the support frame 4 includes at least two support crossbars 41 distributed along the first direction, each support crossbar 41 is arranged along the second direction, at least two support crossbars 41 are provided with first mounting holes 411, and the support crossbar 41 close to the first inspection opening 11 is provided with an avoidance groove 412, the avoidance groove 412 corresponds to the first mounting hole 411 away from the first inspection opening 11, so that the first mounting hole 411 away from the first inspection opening 11 can be contacted through the avoidance groove 412. The mounting plate 304 is provided with at least two flanges 305 distributed along the first direction, and each flange is provided with a second mounting hole 306.

[0076] Specifically, Fig.10 and Fig.11 As shown, the support frame 4 includes four support cross bars 41 distributed along the first direction, each support cross bar 41 is extended along the second direction D2, two of the support cross bars 41 are close to the first inspection port 11, and the other two support cross bars 41 are far away from the first inspection port 11, each support cross bar is provided with a first mounting hole 411, and the support cross bar 41 close to the first inspection port 11 is provided with an avoidance groove 412, the avoidance groove 412 corresponds to the first mounting hole 411 far away from the first inspection port 11, so that the first mounting hole 411 far away from the first inspection port 11 can be contacted through the avoidance groove 412.

[0077] like Figure 10-13 As shown, in some embodiments, the support frame 4 is provided with a first mounting hole 411, the first mounting hole 411 includes a plurality of holes and is arranged on the side of the support frame 4 facing the first inspection port 11, and the plurality of first mounting holes 411 are sequentially distributed along the second direction D2. The first detachable device includes a mounting plate 304, the mounting plate 304 is located at the bottom of the first detachable device, the mounting plate 304 is placed on the support frame 4, the side of the mounting plate 304 facing the first inspection port 11 forms a flange 305 extending downward, and the flange 305 is provided with a second mounting hole corresponding to the first mounting hole 411, the first bolt 34 can pass through the second mounting hole 306 and the first mounting hole 411 in sequence, to achieve the fixation between the mounting plate 304 and the support frame 4, and improve the stability and reliability of the connection, and the first bolt 34 is arranged on the support frame 4 along the second direction D2, which can reduce interference during disassembly and assembly, and improve the efficiency of installation or disassembly; and the flange 305 can also locate the installation position of the mounting plate 304, and assist the fixation between the mounting plate 304 and the support frame 4.

[0078] The mounting plate 304 can receive the first detachable component, thereby increasing the mounting area of ​​the first detachable component and improving the stability of the internal structure of the battery pack 100. The flange 305 of the mounting plate 304 faces one side of the first inspection opening 11 and is folded downward, changing the mounting direction of the first bolt 34. The mounting direction of the first bolt 34 faces the first inspection opening 11, thereby reducing the difficulty of installation.

[0079] like Fig.14 and Fig.15 As shown, in some specific examples, the flange 305 is a whole long strip, and a second mounting hole is provided at a position corresponding to the first mounting hole 411 .

[0080] like Fig.14 and Fig.15 As shown, in some other specific examples, the flange 305 is a long strip with an avoidance groove 412 , and the flanges 305 are respectively arranged at corresponding positions of the first mounting holes 411 .

[0081] like Fig.11 As shown, in some embodiments, the battery pack 100 further includes a partition assembly 5, which is disposed in the housing 1. The partition assembly 5 includes a first partition 51, which is located between the battery pack 2 and the electrical module 3, and the first partition 51 is extended along the second direction D2. The first partition 51 separates the electrical module 3 from the battery pack 2, partitions the interior of the battery pack 100, reduces interference between the battery pack 2 and the first electrical part 30, and optimizes the layout within the battery pack 100.

[0082] For example, the first partition 51 includes two first partitions, one first partition 51 separating the battery pack 2 and the first electrical part 30, and one first partition 51 separating the battery pack 2 and the second electrical part 31. The height dimension of the first partition 51 along the vertical direction is lower than the height dimension d0 of the battery pack 2.

[0083] For example, Fig.11 As shown, the partition assembly 5 also includes a second partition 52 that spans between the battery packs 2, and the second partition 52 is connected to the housing by fasteners. Specifically, the second partition 52 includes one disposed in the middle of the first direction D1 of the battery pack 100. The second partition 52 is connected to the housing 1 by fasteners, and the second partition 52 here acts as a reinforcing rib located in the middle of the battery pack 100, thereby improving the rigidity of the battery pack 100.

[0084] For example, an insulating sleeve may be provided on the outside of the partition assembly 5 to improve the safety of the battery pack 100 .

[0085] like Fig.10As shown, in some embodiments, the support frame 4 further includes four supporting longitudinal rods 40, each supporting longitudinal rod 40 is extended along the first direction D1, and the four supporting longitudinal rods 40 are respectively arranged in sequence as a first longitudinal rod 401, a second longitudinal rod 402, a third longitudinal rod 403 and a fourth longitudinal rod 404. A supporting cross bar 41 is connected between the first longitudinal rod 401 and the second longitudinal rod 402, and a supporting cross bar 41 is connected between the third longitudinal rod 403 and the fourth longitudinal rod 404. The first electrical part 30 includes two first detachable components, and the two first detachable components are respectively located on the supporting cross bars 41 on both sides. Therefore, the supporting longitudinal rods 40 and the supporting cross rods 41 in the supporting frame 4 can support the first detachable device. By setting the supporting frame 4 as a combination of the supporting longitudinal rods 40 and the supporting cross rods 41, compared with setting the supporting frame 4 as a whole supporting plate, on the one hand, the supporting longitudinal rods 40 and the supporting cross rods 41 are light in weight, which can meet the structural strength while reducing the weight of the entire battery pack 100; on the other hand, the production and manufacturing process of the supporting longitudinal rods 40 is simple, which can reduce production costs and improve production efficiency.

[0086] Specifically, a support cross bar 41 is connected between the first longitudinal bar 401 and the second longitudinal bar 402, and the support cross bar 41 includes two. The two support cross bars 41 are arranged along the first direction D1, and each support cross bar 41 includes a first mounting hole 411. The support cross bar 41 near the rear of the first direction D1 includes an avoidance groove 412, and the support cross bar near the front of the first direction D1 does not have the avoidance groove 412. At the first mounting hole 411, the first support cross bar 412 and the second support cross bar 413 have the same height dimension. At the avoidance groove 412 of the support cross bar 41, the height dimension of the support cross bar 41 with the avoidance groove 412 is lower than the height dimension of the support cross bar 41 without the avoidance groove 412.

[0087] like Figure 7 and Fig.16 In some embodiments, the first electrical part 30 further includes a first electrical shell 3011 and a second detachable component, the first electrical shell 3011 is mounted on the second longitudinal rod 402 and the third longitudinal rod 403, and the second detachable component is detachably connected to the first electrical shell 3011. Thus, the second detachable component and the first detachable component are installed independently of each other, and only the faulty electrical component can be removed during maintenance, thereby reducing the waste of time and energy and improving maintenance efficiency.

[0088] Specifically, the second detachable device may be a fuse 3013 in the first BDU module 301. After the battery pack 100 fails and the electrical connection is cut off, the fuse 3013 needs to be replaced or manually reset. The first BDU module 301 is provided with a protective cover 3012, which is provided on one side of the fuse 3013 close to the first inspection port 11. The first electrical housing 3011 is connected to the protective cover 3012 through a snap 30121, and the fuse 3013 is fixed to the first electrical housing 3011 through a second bolt 35.

[0089] like Figure 4 and Fig.11 As shown, in some embodiments, the second electrical part 31 includes a second electrical shell 312, and the second electrical part 31 is detachably connected to the housing 1. Therefore, by providing the second electrical shell 312, the interference between the second electrical part 31 and the battery pack 2 can be reduced, and the installation position of the second electrical part 31 can be prompted.

[0090] Specifically, the second electrical shell 312 is disposed above the second electrical part 31, and the second electrical shell 312 is connected to the housing 1 by fasteners. The second inspection port 61 is located at the lower side of the battery pack 100, and the installation direction of the second electrical part 31 is the up-down direction. When the second electrical part 31 is installed and fixed, the second electrical part 31 passes upward through the second inspection port 61, and the second electrical shell 312 is located at the upper side of the installation position of the second electrical part 31, which can block the second electrical part 31 from continuing to move upward, thereby positioning the installation position of the second electrical part 31 and reducing the interference between the second electrical part 31 and the battery pack 2.

[0091] like Figure 6 In some embodiments, the battery pack 100 further includes a liquid cooling plate 6, which is located below the battery pack 2 and the electrical module 3. The liquid cooling plate 6 can exchange heat with the battery pack 2 to remove the heat generated during the use of the battery pack 2. The bottom plate of the housing 1 is a bottom guard plate 7 located below the liquid cooling plate 6. The bottom guard plate 7 protects the liquid cooling plate 6 and other structures inside the housing 1.

[0092] like Figure 6In some embodiments, the liquid cooling plate 6 is provided with a second inspection port 61 corresponding to the second electrical part 31, and the second electrical part 31 is detachably installed in the housing 1 and can be removed from the bottom through the second inspection port 61; the bottom guard plate 7 is detachably connected to the bottom of the housing 1, and the bottom guard plate 7 covers the second inspection port 61. The second electrical part 31 is inspected through the bottom of the battery pack 100, and the first electrical part 30 is inspected through the side of the battery pack 100. The first inspection port 11 faces the horizontal direction and the second inspection port 61 faces the vertical direction, and the first inspection port 11 and the second inspection port 61 face directions orthogonal. As a result, the inspection of the first electrical part 30 and the second electrical part 31 do not interfere with each other and can be carried out simultaneously, thereby improving the inspection efficiency.

[0093] like Figure 6 As shown, in some embodiments, a first sealing ring 62 is provided on the bottom guard plate 7 around the second inspection port 61, and the first sealing ring 62 abuts against the liquid cooling plate 6 to reduce short circuit of the battery pack 100 caused by liquid leakage.

[0094] like Figure 6 As shown, the battery pack 100 further includes a second inspection cover 8 covering the second inspection opening 61, the second inspection cover 8 is detachably connected to the liquid cooling plate 6, the second inspection cover 8 is located above the bottom guard plate 7, and a second sealing ring 81 is provided on the second inspection cover 8 around the second inspection opening 61. The second inspection cover 8 can protect the internal structure of the battery pack 100 to prevent dust, moisture, etc. from entering the battery pack 100 through the second inspection opening 61.

[0095] The vehicle 1000 according to the embodiment of the present invention further includes the battery pack 100 according to the embodiment of the present invention. By adopting the above-mentioned battery pack 100, the integration degree of the vehicle 1000 and the battery pack 100 can be improved.

[0096] Specifically, if Fig.14 As shown, the first inspection opening 11 of the battery pack 100 is perpendicular to the bottom of the vehicle 1000 and is located at the rear of the vehicle 1000; the second inspection opening 61 is facing the side away from the vehicle body and is located at the front of the vehicle 1000.

[0097] The bottom guard plate 7 of the battery pack 100 serves as the bottom plate of the vehicle 1000 . On the one hand, it can support and protect the internal structure of the battery pack 100 , and on the other hand, it improves the integration of the battery pack 100 and the vehicle 1000 .

[0098] like Figure 1As shown, the side wall of the battery pack 100 housing 1 also includes a second flange 13 away from the battery pack 100, the second flange 13 extends along the first direction D1, and includes two second flanges 13, which are respectively arranged on both sides of the battery pack 100. The second flange 13 includes a fixing hole, and the fixing hole and the vehicle 1000 are connected by a fastener.

[0099] Other configurations and operations of the vehicle 1000 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail herein. In the description of the utility model, "first feature" and "second feature" may include one or more of the features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0100] In the description of the present utility model, unless otherwise clearly specified and limited, a first feature "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 "above", "above" and "above" a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0101] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0102] 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: case; a battery pack, the battery pack being located in the housing; an electrical module, the electrical module comprising a first electrical part and a second electrical part; Wherein, the first electrical part and the second electrical part are respectively located at two ends of the battery pack in a first direction, the battery pack is located between the first electrical part and the second electrical part in the first direction, the first electrical part and the second electrical part are both arranged along a second direction, and the second direction is perpendicular to the first direction; The height dimension of the battery pack is greater than or equal to the height dimension of the first electrical part, and the height dimension of the battery pack is greater than or equal to the height dimension of the second electrical part.

2. The battery pack according to claim 1, characterized in that: A first inspection opening is provided on the first side wall of the shell corresponding to the first electrical part. The shell further comprises a first inspection cover covering the first inspection opening. The first inspection cover is openably connected to the first side wall.

3. The battery pack according to claim 2, characterized in that: It also includes a support frame, the support frame is located in the housing, and the first electrical part is installed on the support frame; The first electrical part includes a first detachable component detachably mounted on the support frame, and a projection of the first detachable component on the first side wall is completely located within the first inspection opening.

4. The battery pack according to claim 3, characterized in that: A plurality of first mounting holes are provided on one side of the support frame facing the first inspection opening, and the plurality of first mounting holes are distributed in sequence along the second direction; The bottom of the first detachable device is a mounting plate, which is placed on the support frame. A downwardly extending flange is formed on the side of the mounting plate facing the first inspection port, and a second mounting hole corresponding to the first mounting hole is provided on the flange so that fasteners can pass through the second mounting hole and the first mounting hole in sequence for fixation.

5. The battery pack according to claim 4, characterized in that: The support frame includes at least two support cross bars distributed along the first direction, each of the support cross bars is arranged along the second direction, at least two of the support cross bars are provided with the first mounting holes, and the support cross bars close to the first inspection opening are provided with avoidance grooves corresponding to the first mounting holes away from the first inspection opening; The mounting plate is provided with at least two flanges distributed along the first direction, and each flange is provided with the second mounting hole.

6. The battery pack according to claim 5, characterized in that: The support frame further comprises four supporting longitudinal rods, each of which is extended along the first direction, and the four supporting longitudinal rods are respectively and sequentially arranged as a first longitudinal rod, a second longitudinal rod, a third longitudinal rod and a fourth longitudinal rod; The supporting cross bar is connected between the first longitudinal bar and the second longitudinal bar, and the supporting cross bar is connected between the third longitudinal bar and the fourth longitudinal bar; The first electrical part includes two first detachable components, and the two first detachable components are respectively located on the supporting crossbars on both sides; The first electrical part further includes: a first electrical shell and a second detachable component, the first electrical shell is mounted on the second longitudinal rod and the third longitudinal rod, and the second detachable component is detachably connected to the first electrical shell.

7. The battery pack according to any one of claims 1 to 6, characterized in that: The second electrical part includes a second electrical shell, and the second electrical part is detachably connected to the housing.

8. The battery pack according to any one of claims 1 to 6, characterized in that: Also includes: A liquid cooling plate is located below the battery pack and the electrical module, and the bottom plate of the shell is a bottom guard plate located below the liquid cooling plate.

9. The battery pack according to claim 8, characterized in that: The liquid cooling plate is provided with a second inspection port corresponding to the second electrical part, and the second electrical part can be removed detachably from below through the second inspection port; The bottom guard plate is detachably connected below the liquid cooling plate, and the bottom guard plate covers the second inspection port.

10. The battery pack according to any one of claims 1 to 6, characterized in that: The difference between the height dimension of the battery pack and the height dimension of the first electrical part is at least 20 mm, and the difference between the height dimension of the battery pack and the height dimension of the second electrical part is at least 20 mm.

11. A vehicle, characterized in that: It also includes a battery pack according to any one of claims 1-10.

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