Box body of battery pack, battery cluster with box body and battery cluster assembly

Abstract

The utility model provides a box body of a battery pack, a battery cluster with the same and a battery cluster assembly, the box body of the battery pack comprises a U-shaped tray, the tray comprises a bottom plate and two side plates, the bottom plate is horizontally arranged, the side plates are vertically arranged, the number of the side plates is two, and the lower ends of the two side plates are respectively connected with the two ends of the bottom plate in a first direction; the side frames are of vertically-arranged rectangular frame structures, the number of the side frames is two, the side frames are arranged on the two sides, in the second direction, of the bottom plate respectively, the lower ends of the side frames are fixed to the bottom plate, the two ends, in the first direction, of the side frames are connected with the side plates respectively, and the side frames and the tray are matched to define a containing cavity used for containing the battery module. According to the box body of the battery pack, the tray and the side frame are arranged, the tray is matched with the side frame, the battery module can be prevented from sliding out of the containing cavity, the use safety of the battery pack is guaranteed, meanwhile, the tray is simple in structure and convenient to produce, and therefore the production cost of the box body can be reduced.

Description

Technical Field

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

[0002] In the existing battery cluster, in order to assemble multiple battery modules, the box is usually divided into multiple accommodating chambers. This structural form is difficult to design and complex in structure, which is not conducive to the production of the box. At the same time, it will increase the production cost of the box and cannot meet the cost reduction needs of the battery cluster. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a box body of a battery pack, which can reduce production costs.

[0004] The utility model also provides a battery cluster having the box of the battery pack.

[0005] The utility model also provides a battery cluster assembly having the battery cluster.

[0006] According to the battery pack box of the embodiment of the utility model, it includes: a tray, which is U-shaped and includes a bottom plate and a side plate, the bottom plate is horizontally arranged, the side plate is vertically arranged, the number of the side plates is two, and the lower ends of the two side plates are respectively connected to the two ends of the bottom plate in a first direction; a side frame, the side frame is a vertically arranged rectangular frame structure, the number of the side frames is two and they are respectively arranged on both sides of the bottom plate in a second direction, the lower end of the side frame is fixed to the bottom plate, and the two ends of the side frame in the first direction are respectively connected to the side plates, and the side frame cooperates with the tray to define a accommodating cavity for accommodating a battery module.

[0007] According to the box body of the battery pack of the utility model, a tray and a side frame are provided, and the tray and the side frame cooperate to prevent the battery module from sliding out of the accommodating cavity, thereby ensuring the safe use of the battery pack. At the same time, the tray has a simple structure and is easy to produce, thereby reducing the production cost of the box body.

[0008] According to some embodiments of the utility model, the side frame includes: two first rods, the two first rods extend along the first direction and are arranged at intervals in the up and down direction; two second rods, the two second rods extend up and down, the two second rods are respectively arranged at the two ends of the first rod in the first direction and respectively connect the ends of the same end of the two first rods; at least one intermediate rod, the intermediate rod extends up and down, and when there are multiple intermediate rods, the multiple intermediate rods are arranged at intervals along the first direction.

[0009] According to some optional embodiments of the utility model, the two side edges of the base plate in the second direction are formed with a plurality of first fixing holes that pass through the base plate up and down, the first rod is formed with a plurality of second fixing holes that pass through the first rod up and down, and the base plate is connected to the first rod by fasteners passing through the first fixing holes and the second fixing holes.

[0010] According to some embodiments of the present utility model, the bottom plate is formed with a heat exchange channel and a liquid inlet and a liquid outlet connected to the heat exchange channel.

[0011] A battery cluster according to an embodiment of the second aspect of the utility model comprises: a plurality of battery packs, the plurality of battery packs being stacked up and down, the battery pack comprising a box body and a battery module of the battery pack according to the first aspect of the utility model, the battery module being arranged in the accommodating cavity, and a top cold plate, the top cold plate being arranged on the upper side of the battery module of the uppermost battery pack, wherein the bottom plate is connected to the side frame of the box body located on the lower side of the bottom plate by fasteners.

[0012] According to the battery cluster of the utility model, by setting the box of the battery pack of the first embodiment, multiple battery packs can be stacked and placed, and the height of the box is small, so that the space occupied by the box can be reduced. At the same time, the boxes of adjacent battery packs are fixedly connected by fasteners, which can not only ensure the connection strength of the boxes of adjacent battery packs and prevent a single battery pack from being separated from other battery packs, but also facilitate the fixation of adjacent battery packs and save fixation time. In addition, it is possible to achieve double-sided cooling of the battery module, thereby ensuring the cooling effect and effectively avoiding the temperature difference on both sides of the battery module, thereby increasing the service life of the battery pack and improving the safety performance of the battery pack.

[0013] According to some optional embodiments of the present invention, the battery cluster further includes: a protective plate, which is vertically arranged and disposed on both sides of the plurality of battery packs in the second direction, and the protective plate is fixedly connected to the plurality of boxes.

[0014] According to some optional embodiments of the present invention, the battery cluster further includes: a pallet, on which the plurality of battery packs are supported, and a side wall of the pallet is formed with insertion holes for transporting the battery cluster.

[0015] According to some embodiments of the present invention, the bottom plate is formed with a heat exchange channel and a liquid inlet and a liquid outlet connected to the heat exchange channel, and the battery cluster also includes: a liquid cooling pipeline assembly, the liquid cooling pipeline assembly is arranged on one side of the multiple battery packs in the first direction, the liquid cooling pipeline assembly has a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to the liquid inlets and liquid outlets of the multiple bottom plates, and the liquid inlet pipe and the liquid outlet pipe are respectively connected to the inlet and outlet of the top cold plate.

[0016] A battery cluster according to an embodiment of the third aspect of the present invention includes the battery cluster according to the second aspect of the present invention, wherein there are multiple battery clusters, and the multiple battery clusters are sequentially arranged and connected along the second direction.

[0017] According to the battery cluster assembly of the utility model, by setting the battery cluster of the first embodiment mentioned above, double-layer cooling can be provided for the battery module to prevent thermal runaway damage of the battery module. At the same time, it can also facilitate the movement and loading and unloading of multiple battery clusters and improve the transfer efficiency.

[0018] According to some embodiments of the present invention, the battery cluster assembly also includes: a first connecting plate, which extends vertically and is arranged on both sides of the multiple battery clusters in the first direction, and the first connecting plate is connected between the boxes of two adjacent battery clusters through fasteners; a second connecting plate, which is horizontally set and arranged on the top of the multiple battery clusters, and the second connecting plate is connected between two adjacent battery clusters through fasteners.

[0019] 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

[0020] Figure 1 is a schematic diagram of a battery cluster assembly at an angle according to an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of another angle of the battery cluster assembly shown in FIG.

[0022] Figure 3 yes Figure 2 Schematic diagram of the battery cluster shown in;

[0023] Figure 4 yes Figure 3 A schematic diagram of an angle of the battery cluster shown in FIG. 1 , excluding the protective plate;

[0024] Figure 5 yes Figure 4 A schematic diagram of the battery cluster shown in another angle;

[0025] Figure 6 yes Figure 4 A schematic diagram of another angle of the battery cluster shown in ;

[0026] Figure 7 yes Figure 4 A schematic diagram of a battery cluster at another angle shown in FIG.

[0027] Figure 8 yes Figure 6 A schematic diagram of a battery pack shown in ;

[0028] Fig. 9 yes Figure 6 An exploded view of the battery pack shown in;

[0029] Fig.10 yes Fig. 9 A schematic diagram of a battery module shown in;

[0030] Fig.11 yes Fig.10 A partial enlarged view of the middle A;

[0031] Fig.12 yes Fig. 9 Schematic diagram of the battery module shown in .

[0032] Reference numerals:

[0033] 100, box body;

[0034] 10. tray; 11. bottom plate; 111. first fixing hole; 112. connecting hole; 12. side plate;

[0035] 20, side frame; 21, first rod; 211, second fixing hole; 22, second rod; 23, middle rod;

[0036] 110. Battery module;

[0037] 200, battery pack;

[0038] 300, top cold plate;

[0039] 400, protective plate;

[0040] 500, support plate; 510, insertion hole;

[0041] 600, liquid cooling pipeline assembly;

[0042] 1000, battery cluster;

[0043] 2000, first connecting plate;

[0044] 3000, second connecting plate;

[0045] 1. Battery cluster. DETAILED DESCRIPTION

[0046] 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0047] Please refer to the following Figure 1-Figure 12 A box body 100 of a battery pack according to an embodiment of the present invention is described.

[0048] Reference Figure 1 , Figure 8 , Fig. 9 and Fig.10 According to the battery pack box 100 of the embodiment of the present utility model, the battery pack box 100 includes: a tray 10 and a side frame 20.

[0049] Specifically, the tray 10 is U-shaped and includes a bottom plate 11 and side plates 12. The bottom plate 11 is horizontally arranged, and the side plates 12 are vertically arranged. There are two side plates 12, and the lower ends of the two side plates 12 (such as Fig.10 The lower ends of the side plates 12 shown in the figure are respectively connected to the bottom plate 11 in the first direction (such as Fig.10 The two ends of the front-to-back direction (as shown) Fig.10 The side frame 20 is a vertically arranged rectangular frame structure, and the number of the side frames 20 is two and they are respectively arranged on the bottom plate 11 in the second direction (such as Fig.10 on both sides (as shown in the left and right directions) Fig.10 The left and right sides of the bottom plate 11 shown in FIG. 1 ), the lower end of the side frame 20 (as shown in FIG. Fig.10 The lower end of the side frame 20 shown in the figure is fixed to the bottom plate 11, and the two ends of the side frame 20 in the first direction (such as Fig.10 The front end and the rear end of the side frame 20 are respectively connected to the side plate 12 , and the side frame 20 cooperates with the tray 10 to define a receiving cavity for receiving the battery module 110 .

[0050] For example, Figure 1 , Figure 8 , Fig. 9 and Fig.10As shown, the bottom plate 11 is a rectangular plate extending in the front-to-back direction, the side plates 12 are arranged vertically, and the side plates 12 are connected to the front and back sides of the bottom plate 11, the lower end of the side plate 12 arranged on the front side is connected to the front side of the bottom plate 11, and the lower end of the side plate 12 arranged on the rear side is connected to the rear side of the bottom plate 11, so that the two side plates 12 and one bottom plate 11 form a U-shaped tray 10, the side frames 20 are arranged vertically, and the side frames 20 are arranged on the left and right sides of the bottom plate 11, the lower end of the side frame 20 arranged on the left side is fixedly connected to the left side of the bottom plate 11, and the lower end of the side frame 20 arranged on the right side is fixedly connected to the right side of the bottom plate 11, and the two side frames 20 and the tray 10 form a receiving cavity with an open top. Preferably, the side plates 12 are fixedly connected to the bottom plate 11, and this connection form has a simple structure and is convenient for operation.

[0051] When storing the battery module 110 in the battery pack box 100, first place the tray 10, then place a battery module 110 in the accommodating cavity of the tray 10, then install the side frames 20 on the left and right sides of the tray 10, and the lower ends of the side frames 20 are fixedly connected to the bottom plate 11, then stack a tray 10 upwards, then place a battery module 110 in the accommodating cavity of the tray 10, then install the side frames 20 on the left and right sides of the tray 10, and then repeat the above steps until all the battery modules 110 are stored in the accommodating cavity. At this time, the storage of the battery modules 110 is completed.

[0052] The box body 100 of the battery pack of the utility model is provided with a tray 10 and a side frame 20. After the battery module 110 is installed in the accommodating cavity, the side frame 20 can limit the battery module 110, thereby preventing the battery module 110 from sliding out of the accommodating cavity, and ensuring the safety of the battery pack 200. At the same time, the side frame 20 and the side plate 12 cooperate to form an annular structure, which can enclose the circumference of the battery module 110. Even if the battery module 110 expands and deforms, the side frame 20 and the side plate 12 cooperate to effectively prevent the side plate 12 from deforming, thereby ensuring the safety of the battery pack 200. In addition, the tray 10 is a U-shaped structure formed by the bottom plate 11 and the two side plates 12. This tray 10 has a simple structure and is easy to produce, thereby reducing the production cost of the box body 100. At the same time, the tray 10 and the two side frames 20 form an accommodating cavity, and there is no redundant structure occupying the space of the accommodating cavity, thereby ensuring the storage space of the battery module 110.

[0053] According to the battery pack box 100 of the embodiment of the utility model, a tray 10 and a side frame 20 are provided. The tray 10 and the side frame 20 cooperate to prevent the battery module 110 from sliding out of the accommodating cavity, thereby ensuring the safe use of the battery pack 200. At the same time, the tray 10 has a simple structure and is easy to produce, thereby reducing the production cost of the box 100.

[0054] According to some embodiments of the present invention, referring to Figure 8 , Fig. 9 and Fig.10 The side frame 20 includes: two first rods 21, two second rods 22 and at least one middle rod 23, that is, the side frame 20 may include one, two or three or more middle rods 23. The two first rods 21 are arranged along a first direction (such as Fig.10 The front-to-back direction shown in FIG. 1 ) and the upper-lower direction (as shown in FIG. Fig.10 The two second rods 22 extend up and down, and the two second rods 22 are respectively arranged at both ends of the first rod 21 in the first direction (as shown in the upper and lower directions); Fig.10 The front end and the rear end of the first rod 21 shown in the figure) are respectively connected to the ends of the same end of the two first rods 21; the intermediate rod 23 extends up and down, and when there are multiple intermediate rods 23, the multiple intermediate rods 23 are arranged at intervals along the first direction.

[0055] In this way, the first rod 21, the second rod 22 and the middle rod 23 form a rectangular side frame 20, which can ensure the structural strength of the side frame 20, prevent damage to the side frame 20, and at the same time ensure the blocking force of the side frame 20 on the battery module 110, which can effectively prevent the battery module 110 from sliding out of the accommodation cavity. In addition, multiple middle rods 23 can further strengthen the structural strength of the side frame 20, thereby further improving the structural strength of the side frame 20 and the blocking force of the side frame 20 on the battery module 110.

[0056] For example, Figure 8 , Fig. 9 and Fig.10 As shown, the first rod 21 is extended in the front-to-back direction, and the two first rods 21 are arranged at intervals in the up-down direction. The second rod 22 is extended in the up-to-down direction, and the two second rods 22 are arranged at intervals in the front-to-back direction. The upper and lower ends of the second rod 22 arranged on the front side are respectively connected to the front ends of the two first rods 21, and the upper and lower ends of the second rod 22 arranged on the rear side are respectively connected to the rear ends of the two first rods 21. The middle rod 23 is arranged vertically, and the upper and lower ends of the middle rod 23 are respectively connected to the two first rods 21, and four are arranged in the middle. The four middle rods 23 are arranged at intervals in the front-to-back direction. In this way, the side frame 20 forms a rectangular frame structure.

[0057] According to some optional embodiments of the present invention, referring to Fig.10 and Fig.11 , the bottom plate 11 is in the second direction (such as Fig.11 The two side edges (such as Fig.11The left and right edges of the bottom plate 11 shown in the figure are formed with a plurality of first fixing holes 111 that pass through the bottom plate 11 from top to bottom, that is, the two side edges of the bottom plate 11 in the second direction can be formed with two, three or four or more first fixing holes 111 that pass through the bottom plate 11 from top to bottom, and the first rod 21 is formed with a plurality of second fixing holes 211 that pass through the first rod 21 from top to bottom, that is, the first rod 21 can be formed with two, three or four or more second fixing holes 211 that pass through the first rod 21 from top to bottom, and the bottom plate 11 and the first rod 21 are connected to each other through the first fixing holes 111 and the second fixing holes 211 by fasteners.

[0058] In this way, the fastener passes through the first fixing hole 111 and the second fixing hole 211 to fix the bottom plate 11 and the first rod 21, so that the bottom plate 11 and the side frame 20 can be fixedly connected, thereby ensuring the connection strength between the bottom plate 11 and the side frame 20 and preventing the side frame 20 from separating from the bottom plate 11. At the same time, the connection form of the fastener connection has a simple structure and is easy to operate.

[0059] For example, Fig.10 and Fig.11 As shown, the left and right edges of the bottom plate 11 are provided with a plurality of first fixing holes 111 penetrating the bottom plate 11 in the up-down direction, and the plurality of first fixing holes 111 are arranged at intervals in the front-back direction, and the first rod 21 is provided with a plurality of second fixing holes 211 penetrating the bottom plate 11 in the up-down direction, and the plurality of second fixing holes 211 are arranged at intervals in the front-back direction, and the fasteners pass through the first fixing holes 111 and the second fixing holes 211 in sequence from top to bottom. Preferably, the fasteners are bolts, which are low in cost and convenient for mass use.

[0060] According to some embodiments of the present invention, referring to Figure 8 , Fig. 9 and Fig.10 The bottom plate 11 is formed with a heat exchange channel and a liquid inlet and a liquid outlet connected to the heat exchange channel. Thus, the heat exchange channel can cool the battery module 110 to prevent the battery module 110 from being damaged by thermal runaway. The liquid inlet and the liquid outlet are connected to the heat exchange channel, so that the refrigerant in the heat exchange channel can flow normally, thereby ensuring the cooling effect of the heat exchange channel.

[0061] For example, Figure 8 , Fig. 9 and Fig.10 As shown, the heat exchange flow channel is arranged inside the bottom plate 11, and the liquid inlet and the liquid outlet are arranged on the front side of the bottom plate 11, and the openings of the liquid inlet and the liquid outlet face upward.

[0062] According to the battery cluster 1000 of the second embodiment of the utility model, Figure 4 , Figure 5 and Figure 6, including: a plurality of battery packs 200 and a top cold plate 300, that is, the battery cluster 1000 may include two, three or four or more battery packs 200. The plurality of battery packs 200 are stacked up and down, and the battery pack 200 includes the box 100 and the battery module 110 of the battery pack of the first aspect of this embodiment, and the battery module 110 is arranged in the accommodating cavity, and the top cold plate 300 is arranged on the upper side of the battery module 110 of the uppermost battery pack 200 (such as Figure 4 The upper side of the battery module 110 shown in FIG. 1 ), wherein the bottom plate 11 is connected to the bottom side of the bottom plate 11 (such as Figure 4 The side frame 20 of the box body 100 is connected to the lower side of the bottom plate 11 shown.

[0063] For example, Figure 4 , Figure 5 and Figure 6 As shown, multiple battery packs 200 are stacked in the vertical direction, and on the battery packs 200 connected in the vertical direction, the bottom plate 11 and the box 100 below the bottom plate 11 are fixedly connected by fasteners, and the topmost battery module 110 is provided with a top cold plate 300. Preferably, the fastener is a bolt, which has a simple structure, low cost, and is convenient for mass use.

[0064] According to the battery cluster 1000 of the embodiment of the utility model, by setting the box 100 of the battery pack of the first embodiment, multiple battery packs 200 can be stacked and placed, and the height of the box 100 is small, so that the space occupied by the box 100 can be reduced. At the same time, the boxes 100 of adjacent battery packs are fixedly connected by fasteners, which can not only ensure the connection strength of the boxes 100 of adjacent battery packs and prevent a single battery pack 200 from being separated from other battery packs 200, but also facilitate the fixation of adjacent battery packs 200 and save fixation time. In addition, it is possible to achieve double-sided cooling of the battery module 110, thereby ensuring the cooling effect and effectively avoiding the temperature difference between the two sides of the battery module 110, thereby increasing the service life of the battery pack 200 and improving the safety performance of the battery pack 200.

[0065] Furthermore, if Figure 8 , Fig. 9 and Fig.10 As shown, the gap between the battery module 110 and the accommodating cavity is filled with thermal conductive adhesive, thereby ensuring that the heat emitted by the battery module 110 is transferred to the heat exchange flow channel through the thermal conductive adhesive, thereby effectively preventing the battery module 110 from being damaged by thermal runaway.

[0066] According to some embodiments of the present invention, referring to Figure 3 and Figure 4 The battery cluster 1000 may further include: a protective plate 400, the protective plate 400 is vertically arranged and arranged between the plurality of battery packs 200 in the second direction (eg Figure 3on both sides (as shown in the left and right directions) Figure 3 The left and right sides of the battery pack 200 shown in the figure), the protective plate 400 is fixedly connected to the multiple boxes 100. Therefore, the protective plate 400 can provide protection for the battery module 110 in the second direction to prevent the battery pack 200 from being damaged. At the same time, the protective plate 400 cooperates with the side plate 12 and the cold plate to cover the battery module 110 in the accommodating cavity, thereby further improving the protection effect of the battery module 110.

[0067] For example, Figure 3 and Figure 4 As shown, the protection plate 400 is a vertically arranged rectangular plate, and the protection plate 400 is disposed on the left and right sides of the plurality of battery packs 200 .

[0068] According to some embodiments of the present invention, referring to Figure 3 and Figure 4 The battery cluster 1000 may further include: a pallet 500, on which a plurality of battery packs 200 are supported, and a plug-in hole 510 for transporting the battery cluster 1000 is formed on the side wall of the pallet 500. When the battery pack 200 is placed on the pallet 500, it is convenient for a forklift to move the battery pack 200, thereby facilitating the movement and loading and unloading of the battery pack 200. At the same time, the pallet 500 is provided with the plug-in hole 510, so that the fork arm of the forklift can be conveniently extended into the plug-in hole 510 to transport the battery pack 200.

[0069] For example, Figure 3 and Figure 4 As shown, a rectangular insertion hole 510 is provided in the middle of the support plate 500, and the insertion hole 510 penetrates the tray 10 along the front-back direction. Preferably, the support plate 500 is a steel support plate 500, so that the strength of the support plate 500 can be ensured.

[0070] According to some embodiments of the present invention, referring to Figure 3 , Figure 4 and Figure 5 The bottom plate 11 is formed with a heat exchange channel and a liquid inlet and a liquid outlet connected to the heat exchange channel. The battery cluster 1000 also includes: a liquid cooling pipeline assembly 600, which is arranged on the plurality of battery packs 200 in the first direction (such as Figure 4 The front-to-back direction shown) on one side (such as Figure 4 The liquid cooling circuit assembly 600 has a liquid inlet pipe and a liquid outlet pipe, which are respectively connected to the liquid inlets and liquid outlets of the multiple bottom plates 11, and the liquid inlet pipe and the liquid outlet pipe are respectively connected to the inlet and outlet of the top cold plate 300.

[0071] In this way, the liquid inlet pipe of the liquid cooling pipe assembly 600 is connected to the liquid inlet of the bottom plate 11 and the top cold plate 300, and the liquid outlet pipe of the liquid cooling pipe assembly 600 is connected to the liquid outlet pipe of the bottom plate 11 and the top cold plate 300, thereby forming a closed flow path, which can ensure the cooling effect of the top cold plate 300 and multiple bottom plates 11 on the battery module 110, and thus effectively prevent thermal runaway of the battery module 110.

[0072] For example, Figure 3 , Figure 4 and Figure 5 As shown, the liquid cooling pipe assembly 600 is arranged on the front side of the battery pack 200, the liquid inlets and liquid outlets of the multiple bottom plates 11 are arranged on the front side of the bottom plate 11, and the openings of the liquid inlets and liquid outlets of the bottom plate 11 face upward, and the liquid inlet and liquid outlet of the top cold plate 300 are arranged on the front side of the top cold plate 300, and the openings of the liquid inlet and liquid outlet of the top cold plate 300 are arranged downward, so that the connection between the liquid cooling pipe assembly 600 and the liquid inlet and liquid outlet can be facilitated, and at the same time, the space occupied by the top cold plate 300 can be reduced, which is convenient for the arrangement of other structures.

[0073] According to the battery cluster assembly 1 of the third embodiment of the utility model, refer to Figure 1 and Figure 2 , including the battery cluster 1000 of the second aspect of the present embodiment, the number of the battery clusters 1000 is multiple, that is, the number of the battery clusters 1000 can be two, three or four or more, and the multiple battery clusters 1000 are arranged along the second direction (such as Figure 2 The left and right directions shown in the figure are arranged sequentially and connected.

[0074] According to the battery cluster assembly 1 of the embodiment of the utility model, by setting the battery cluster 1000 of the first aspect embodiment mentioned above, double-layer cooling can be provided for the battery module 110 to prevent the battery module 110 from being damaged by thermal runaway. At the same time, the movement and loading and unloading of multiple battery clusters 1000 can be facilitated to improve the transfer efficiency.

[0075] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The battery cluster assembly 1 further includes: a first connecting plate 2000 and a second connecting plate 3000. The first connecting plate 2000 extends vertically and is arranged between the plurality of battery clusters 1000 in the first direction (eg Figure 1 The front-to-back direction shown) on both sides (such as Figure 1 The first connecting plate 2000 is connected between the boxes 100 of two adjacent battery clusters 1000 by fasteners; the second connecting plate 3000 is horizontally arranged and arranged on the top of the plurality of battery clusters 1000 (such as Figure 1The second connecting plate 3000 is connected between two adjacent battery clusters 1000 by fasteners.

[0076] In this way, during the transportation of multiple battery clusters 1000, the first connecting plate 2000 and the second connecting plate 3000 can strengthen the connection strength between adjacent battery clusters 1000 to avoid separation of adjacent battery clusters 1000. At the same time, the fixed center of gravity of multiple battery clusters 1000 is lower than the center of gravity of a single battery cluster 1000, thereby effectively preventing the battery clusters 1000 from tipping over, thereby ensuring the safety of the transfer of multiple battery clusters 1000.

[0077] For example, Figure 1 and Figure 2 As shown, the first connecting plate 2000 is arranged vertically, and the first connecting plate 2000 is provided at the front and rear sides of the battery cluster 1000. The second connecting plate 3000 is arranged horizontally and extends in the front-to-back direction, and the second connecting plate 3000 connects the tops of two adjacent battery clusters 1000. Preferably, the fastener is a bolt, which has a simple structure, low cost, and is convenient for mass use.

[0078] According to some embodiments of the present invention, referring to Figure 1 , Figure 2 and Fig.11 The bottom plate 11 is in the first direction (eg Fig.11 A connection hole 112 is formed on the end surface of the bottom plate 11 in the second direction (such as the front and rear direction shown in FIG. Fig.11 The left and right directions shown) on both ends (such as Fig.11 Thus, the connection holes 112 can facilitate the fixation of the first connection plate 2000 and the adjacent battery clusters 1000, and further facilitate the fixed connection of the adjacent battery clusters 1000. At the same time, the connection holes 112 are formed at both ends of the bottom plate 11, and when the adjacent battery clusters 1000 are connected, the width of the first connection plate 2000 can be reduced, and further the production cost of the first connection plate 2000 can be reduced.

[0079] For example, Figure 1 , Figure 2 and Fig.11 As shown, connection holes 112 are formed on the front and rear sides of the bottom plate 11, two connection holes 112 are set on the front side of the bottom plate 11, and the two connection holes 112 are respectively set at the left and right ends of the bottom plate 11, and two connection holes 112 are set on the rear side of the bottom plate 11, and the two connection holes 112 are respectively set at the left and right ends of the bottom plate 11.

[0080] According to some embodiments of the present invention, referring to Figure 1 and Figure 2There are two battery clusters 1000, and the two battery clusters 1000 are arranged side by side. There are two fork arms on the forklift, so that the two battery clusters 1000 can be conveniently inserted into the insertion holes 510 on the battery cluster 1000, respectively, so that the number of battery clusters 1000 can match the number of fork arms, thereby ensuring the transportation efficiency of the battery clusters 1000. At the same time, the two battery clusters 1000 are arranged side by side, which takes up less space and can further facilitate transportation.

[0081] Reference below Figure 1-Figure 12 A battery cluster assembly 1 according to an embodiment of the present invention is described.

[0082] According to the battery cluster assembly 1 of the embodiment of the utility model, the battery cluster assembly 1 includes: two adjacent battery clusters 1000, a first connecting plate 2000 and a second connecting plate 3000, the two battery clusters 1000 are arranged side by side, the first connecting plate 2000 is arranged vertically and connected to the front sides of the two adjacent battery clusters 1000, the second connecting plate 3000 is arranged horizontally and extends in the front-to-back direction, and the second connecting plate 3000 is connected to the tops of the two adjacent battery clusters 1000.

[0083] The battery cluster 1000 includes: a plurality of battery packs 200, a top cold plate 300, a protective plate 400, a support plate 500 and a liquid cooling pipeline assembly 600. Specifically, the battery pack 200 is supported on the support plate 500, and the plurality of battery packs 200 are stacked up and down, the top cold plate 300 is arranged on the upper side of the uppermost battery pack 200, and a liquid inlet and a liquid outlet are provided on the top cold plate 300, the protective plate 400 is arranged on the left and right sides of the plurality of battery packs 200, the liquid cooling pipeline assembly 600 is arranged on the front side of the plurality of battery packs 200, the liquid cooling pipeline assembly 600 includes a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the liquid inlet on the top cold plate 300, the liquid outlet pipe is connected to the liquid outlet on the top cold plate 300, and the support plate 500 is provided with an insertion hole 510, which is arranged in the middle of the support plate 500 and penetrates the support plate 500 in the front-to-back direction.

[0084] The battery pack 200 includes a box body 100 and a battery module 110 . The box body 100 defines a receiving cavity, and the battery module 110 is disposed in the receiving cavity of the box body 100 .

[0085] The box body 100 includes: a tray 10 and two side frames 20. Specifically, the tray 10 includes: a bottom plate 11 and two side plates 12. The bottom plate 11 is arranged horizontally and extends in the front-to-back direction. A plurality of first fixing holes 111 are provided at the left and right edges of the bottom plate 11. The first fixing holes 111 penetrate the bottom plate 11 in the up-down direction, and the plurality of first fixing holes 111 are arranged at intervals in the front-to-back direction. A liquid inlet and a liquid outlet are provided at the front side of the bottom plate 11. The liquid inlet of the bottom plate 11 is connected to the liquid inlet pipe, and the liquid outlet of the bottom plate 11 is connected to the liquid outlet pipe. A connecting hole 112 is provided at the front and rear ends of the bottom plate 11. Two connecting holes 112 are provided at the front side of the bottom plate 11. The two connecting holes 112 are provided at the The holes 112 are respectively arranged at the left and right ends of the bottom plate 11, and two connecting holes 112 are respectively arranged on the rear side of the bottom plate 11. The two connecting holes 112 are respectively arranged at the left and right ends of the bottom plate 11. The side plates 12 are arranged vertically, and the side plates 12 are arranged at the front and rear sides of the bottom plate 11. The lower end of the side plate 12 arranged at the front side is screwed to the front end of the bottom plate 11, and the lower end of the side plate 12 arranged at the rear side is screwed to the rear end of the bottom plate 11. The side frame 20 is arranged on the left and right sides of the bottom plate 11, and the lower end of the side frame 20 arranged on the left side is connected to the left edge of the bottom plate 11, and the lower end of the side frame 20 arranged on the right side is connected to the right edge of the bottom plate 11.

[0086] The side frame 20 includes: two first rods 21, two second rods 22 and four intermediate rods 23. Specifically, the first rod 21 is extended in the front-to-back direction, the two first rods 21 are arranged at intervals in the up-down direction, the first rod 21 is provided with a second fixing hole 211 penetrating the first rod 21 in the up-down direction, the second fixing holes 211 are arranged at intervals in the front-to-back direction on the first rod 21, the second rod 22 is arranged vertically, and the upper and lower ends of the two second rods 22 are respectively connected to the front end and the rear end of the first rod 21, the intermediate rod 23 is arranged vertically, the intermediate rod 23 is arranged at intervals in the front-to-back direction, and the two ends of the intermediate rod 23 are connected to the first rod 21.

[0087] When assembling the battery cluster 1000, the battery pack 200 needs to be assembled first. When assembling the battery pack 200, the tray 10 is first placed on the bottom plate 11 of the pallet 500, and then the battery module 110 is installed in the accommodating cavity of the tray 10, and then the side frame 20 is installed on the left and right sides of the battery module 110, and the lower end of the side frame 20 is screwed to the end of the bottom plate 11, and then the gap between the battery module 110 and the accommodating cavity is filled with thermal conductive adhesive. At this time, one battery pack 200 is assembled, and then another tray 10 is stacked upwards, and then the battery module 110 is placed in the accommodating cavity of the tray 10, and then the side frame 20 is installed on the left and right sides of the battery module 110, and the lower end of the side frame 20 is screwed to the end of the bottom plate 11, and then the battery pack 200 is assembled. The gap between the battery module 110 and the accommodating cavity is filled with thermal conductive adhesive. At this time, another battery pack 200 is assembled, and the above steps are repeated until all battery modules 110 are loaded into the corresponding trays 10. Then, the top cold plate 300 is installed on the uppermost battery module 110, and the openings of the liquid inlet and the liquid outlet of the top cold plate 300 are set downward. Then, the liquid cooling pipeline assembly 600 is connected to the front side of multiple battery packs 200. It should be noted that the liquid inlet pipe is connected to the liquid inlets of the top cold plate 300 and multiple bottom plates 11, and the liquid outlet pipe is connected to the liquid outlets of the top cold plate 300 and multiple bottom plates 11. Then, two protective plates 400 are respectively covered on the left and right sides of the multiple battery packs 200. At this time, the assembly of a battery cluster 1000 is completed.

[0088] When transferring or loading and unloading the battery cluster assembly 1, it is necessary to arrange the two battery clusters 1000 side by side in the left-right direction, then arrange the first connecting plate 2000 vertically, and connect the two first connecting plates 2000 to the front and rear sides of the two adjacent battery clusters 1000 respectively, and then fix them to the connecting holes 112 of the bottom plate 11 with fasteners, and then extend the second connecting plate 3000 in the front-to-back direction, and connect the second connecting plate 3000 to the tops of the two adjacent battery clusters 1000, and then insert the two fork arms of the forklift into the corresponding insertion holes 510 to complete the transfer or loading and unloading of the battery cluster assembly 1.

[0089] The battery cluster assembly 1 of the utility model is provided with the battery cluster 1000 of the second embodiment, and the battery pack box 100 of the first embodiment is provided on the battery cluster 100 of the second embodiment, and the tray 10 and the side frame 20 are provided on the box 100 of the battery pack. The tray 10 and the side frame 20 cooperate to prevent the battery module 110 from sliding out of the accommodating cavity, thereby ensuring the safety of the battery pack 200. At the same time, the tray 10 has a simple structure and is easy to produce, thereby reducing the production cost of the box 100. In addition, multiple battery packs 200 can be stacked, and the height of the box 100 is small, thereby reducing the space occupied by the box 100. Furthermore, it is convenient to move and load and unload multiple battery clusters 100, thereby improving the transfer efficiency.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0091] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0092] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0094] 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 box, characterized in that: include: A tray, the tray is U-shaped and includes a bottom plate and side plates, the bottom plate is horizontally arranged, the side plates are vertically arranged, the number of the side plates is two, and the lower ends of the two side plates are respectively connected to the two ends of the bottom plate in the first direction; The side frame is a vertically arranged rectangular frame structure. There are two side frames, which are respectively arranged on both sides of the base plate in the second direction. The lower end of the side frame is fixed to the base plate, and the two ends of the side frame in the first direction are respectively connected to the side plates. The side frame cooperates with the tray to define a receiving cavity for accommodating the battery module.

2. The box of the battery pack according to claim 1, characterized in that: The side frame comprises: Two first rods, the two first rods extend along a first direction and are spaced apart in a vertical direction; Two second rods, the two second rods extending up and down, the two second rods being respectively arranged at two ends of the first rod in the first direction and respectively connecting the ends of the same end of the two first rods; At least one intermediate rod extends up and down. When there are multiple intermediate rods, the multiple intermediate rods are arranged at intervals along the first direction.

3. The box of the battery pack according to claim 2, characterized in that: The bottom plate is formed with a plurality of first fixing holes penetrating the bottom plate vertically on both side edges in the second direction, the first rod is formed with a plurality of second fixing holes penetrating the first rod vertically, and the bottom plate and the first rod are connected to each other through fasteners passing through the first fixing holes and the second fixing holes.

4. The battery pack box according to claim 1, characterized in that: The bottom plate is formed with a heat exchange channel and a liquid inlet and a liquid outlet communicated with the heat exchange channel.

5. A battery cluster, characterized in that: include: A plurality of battery packs, wherein the plurality of battery packs are stacked up and down, wherein the battery pack comprises a box body and a battery module according to any one of claims 1 to 4, wherein the battery module is arranged in the accommodating cavity, a top cold plate, the top cold plate being arranged on the upper side of the battery module of the uppermost battery pack, Wherein, the bottom plate is connected to the side frame of the box body located at the lower side of the bottom plate through fasteners.

6. The battery cluster according to claim 5, characterized in that: Also includes: A protective plate is vertically arranged and disposed on both sides of the plurality of battery packs in the second direction, and the protective plate is fixedly connected to the plurality of boxes.

7. The battery cluster according to claim 5, characterized in that: Also includes: A tray, a plurality of the battery packs are supported on the tray, and a side wall of the tray is formed with insertion holes for transporting the battery clusters.

8. The battery cluster according to claim 5, characterized in that: The bottom plate is formed with a heat exchange channel and a liquid inlet and a liquid outlet communicating with the heat exchange channel, and the battery cluster further includes: A liquid cooling pipe assembly, wherein the liquid cooling pipe assembly is arranged on one side of the plurality of battery packs in the first direction, and the liquid cooling pipe assembly has a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe and the liquid outlet pipe are respectively connected to the liquid inlets and liquid outlets of the plurality of bottom plates, and the liquid inlet pipe and the liquid outlet pipe are respectively connected to the inlet and outlet of the top cold plate.

9. A battery cluster assembly, characterized in that: Comprising the battery cluster according to any one of claims 5 to 8, there are multiple battery clusters, and the multiple battery clusters are arranged in sequence and connected along the second direction.

10. The battery cluster assembly according to claim 9, characterized in that: The battery cluster assembly also includes: a first connecting plate extending vertically and arranged on both sides of the plurality of battery clusters in the first direction, the first connecting plate being connected between boxes of two adjacent battery clusters by fasteners; The second connecting plate is horizontally arranged on top of the plurality of battery clusters, and the second connecting plate is connected between two adjacent battery clusters via a fastener.

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