Battery tray and battery pack

Abstract

The utility model discloses a battery tray and a battery pack, and relates to the technical field of energy storage, the battery tray comprises a tray body, and the tray body is integrally provided with reinforcing ribs; the supporting beam assembly comprises a first supporting beam and a second supporting beam, the first supporting beam is used for mounting the battery module, and the second supporting beam is used for connecting the tray body with the first supporting beam. According to the battery tray provided by the utility model, the reinforcing ribs are integrally arranged on the tray body, so that the aim of improving the rigidity of the battery tray is fulfilled, the number of parts is reduced, the final assembly forming time is shortened, the production efficiency of the battery tray and a battery pack is improved, the welding amount is reduced, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and more specifically, to a battery tray and a battery pack. Background Art

[0002] In order to increase the rigidity of the traditional battery tray, multiple reinforcements are welded at the bottom and frame of the tray to achieve the purpose of improving the rigidity of the tray. At the same time, for hoisting operations, hanging ears need to be welded at the position of the tray frame. However, the above reinforcement measures will result in more parts, a large amount of welding, and high costs.

[0003] Therefore, how to improve the rigidity of the pallet while reducing the number of parts has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a battery tray so as to reduce the number of parts while improving the rigidity of the tray.

[0005] Another object of the present invention is to provide a battery pack having the above-mentioned battery tray.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A battery tray, comprising:

[0008] A pallet body, wherein the pallet body is integrally provided with reinforcing ribs;

[0009] A support beam assembly, the support beam assembly includes a first support beam and a second support beam, the first support beam is used to install the battery module, and the second support beam is used to connect the tray body and the first support beam.

[0010] Optionally, the battery tray further includes a cooling plate for dissipating heat from the battery module;

[0011] The cooling plate is connected to the second supporting beam, and the first supporting beam is arranged on the cooling plate.

[0012] Optionally, in the above-mentioned battery tray, the cooling plate includes a cooling pipeline, and a liquid inlet and a liquid outlet connected to the cooling pipeline are respectively provided on the cooling plate.

[0013] Optionally, in the above-mentioned battery tray, the reinforcing ribs include a plurality of stamping ribs, and the stamping ribs are arranged in a criss-cross pattern.

[0014] Optionally, in the above-mentioned battery tray, the stamped rib includes at least one convex rib, and the convex rib protrudes in a direction away from the cooling plate to form a liquid collecting trough on the tray body, and at least one drainage hole is provided on the tray body, and the drainage hole is connected to the liquid collecting trough.

[0015] Optionally, in the above-mentioned battery tray, a supporting portion is provided on the second supporting beam, and the tray body, the cooling plate and the first supporting beam are respectively connected to the supporting portion.

[0016] Optionally, in the above battery tray, the tray body, the cooling plate and the first support beam are connected to the same side of the support portion; or,

[0017] The cooling plate and the first supporting beam are connected to the same side of the supporting portion, and the tray body is connected to a side of the supporting portion opposite to the cooling plate.

[0018] Optionally, in the above-mentioned battery tray, a notch for mounting the tray body is provided on the support portion, and the tray body and the support portion are on the same plane to form a first support plane for supporting the cooling plate.

[0019] Optionally, in the above battery tray, a connecting end is provided on the tray body, and the connecting end is bent to form a first fitting portion and a second fitting portion arranged opposite to the first fitting portion;

[0020] The supporting portion is fitted with the first fitting portion, the cooling plate is connected to the connecting end of the tray body, and the cooling plate is fitted with the second fitting portion, and the connecting end of the tray body and the cooling plate are on the same plane to form a second supporting plane for supporting the first supporting beam.

[0021] Optionally, in the above battery tray, the support beam assembly is formed by extrusion, rolling or bending; and / or,

[0022] The second support beam is provided with a hoisting hole.

[0023] A battery pack comprises a battery module and a battery tray as described above, wherein a cooling plate is provided on the tray body, and the battery module is fitted with the cooling plate, and the battery module is mechanically fastened to the first support beam.

[0024] The battery tray provided by the utility model has reinforcing ribs on the tray body, and the reinforcing ribs and the tray body are an integrated structure to improve the rigidity of the tray body, and is installed and fixed to the battery module through a first support beam, and the tray body and the first support beam are simultaneously connected to the second support beam to achieve fixation between the battery tray and the battery module.

[0025] Compared with the traditional method of increasing the rigidity of the battery tray, the battery tray provided by the utility model achieves the purpose of increasing the rigidity of the battery tray by integrally providing reinforcing ribs on the tray body, thereby reducing the number of parts, shortening the assembly molding time, and improving the production efficiency of the battery tray and battery pack, while reducing the amount of welding and reducing the production cost.

[0026] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 An exploded view of a battery tray provided in an embodiment of the utility model;

[0029] Figure 2 A top view of a battery tray provided in an embodiment of the utility model;

[0030] Figure 3 The embodiment of the utility model provides Figure 2 AA section view in;

[0031] Figure 4 The embodiment of the utility model provides Figure 3 A partial enlarged view of the middle A;

[0032] Figure 5 The embodiment of the utility model provides Figure 2 BB section diagram in;

[0033] Figure 6 A top view of a tray body provided in an embodiment of the utility model;

[0034] Figure 7 A right side view of the tray body provided by the embodiment of the utility model;

[0035] Figure 8 The embodiment of the utility model provides Figure 7A partial enlarged view of point B in the middle;

[0036] Fig. 9 A schematic diagram of the connection of the battery tray provided in the embodiment of the utility model Figure 1 ;

[0037] Fig.10 A schematic diagram of the connection of the battery tray provided in the embodiment of the utility model Figure 2 ;

[0038] Fig.11 A schematic diagram of the connection of the battery tray provided in the embodiment of the utility model Figure 3 ;

[0039] Fig.12 A schematic diagram of the connection of the battery tray provided in the embodiment of the utility model Figure 4 ;

[0040] Fig.13 A top view of a battery pack provided in an embodiment of the utility model;

[0041] Fig.14 The embodiment of the utility model provides Fig.13 CC profile in ;

[0042] Fig.15 The embodiment of the utility model provides Fig.14 A partial enlarged view of point C in the middle.

[0043] Wherein, 100 is the tray body, 101 is the reinforcing rib, 1011 is the stamping rib, 1012 is the convex rib, 1013 is the drainage hole, 102 is the connecting end, 1021 is the first fitting part, and 1022 is the second fitting part;

[0044] 200 is a support beam assembly, 201 is a first support beam, 202 is a second support beam, 2021 is a support portion, 2022 is a notch, 2023 is a first support plane, 2024 is a second support plane, 2025 is a hoisting hole, and 2026 is a fastener;

[0045] 300 is a cooling plate, 301 is a liquid inlet, and 302 is a liquid outlet;

[0046] 400 is a battery module. DETAILED DESCRIPTION

[0047] The core of the utility model is to provide a battery tray so as to reduce the number of parts while improving the rigidity of the tray.

[0048] Another core of the present invention is to provide a battery pack having the above-mentioned battery tray.

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] like Figures 1 to 12 As shown, the embodiment of the utility model discloses a battery tray, including a tray body 100 and a support beam assembly 200 .

[0051] It should be noted that the battery pack is an important component of new energy vehicles. It is not only a storage unit for electrical energy, but also the smallest unit of the power battery system. Generally speaking, a battery pack usually includes a battery module and a battery tray. Among them, the battery module is a unit assembled from multiple battery cells to provide higher voltage and capacity, and the battery cells can be connected in series or parallel to increase the total voltage or total capacity of the system. The battery tray is the load-bearing structure of the battery pack, which is used to fix and protect the battery module, and also facilitates the installation and maintenance of the entire battery pack.

[0052] In order to increase the rigidity of the traditional battery tray, multiple reinforcements are welded at the bottom and frame of the tray to achieve the purpose of increasing the rigidity of the tray. In order to hoist the tray, it is necessary to weld lugs at the frame of the tray. Specifically, multiple reinforcement plates are welded in parallel at the bottom of the tray to increase the rigidity of the bottom of the tray, and multiple reinforcement beams are welded at the frame of the tray to increase the rigidity of the frame of the tray. From the above, it can be seen that in order to meet the rigidity and hoisting requirements of the traditional battery tray, multiple parts need to be welded, resulting in more parts, a large amount of welding, and a high cost.

[0053] The battery tray disclosed in the embodiment of the utility model achieves the purpose of improving the rigidity of the battery tray, reducing the number of parts, shortening the assembly molding time, improving the production efficiency of the battery tray and the battery pack, and reducing the amount of welding and reducing the production cost by providing a reinforcing rib 101 on the tray body 100, and the reinforcing rib 101 and the tray body 100 are an integrated structure.

[0054] The following will be combined Figures 1 to 12 The battery tray disclosed in the embodiment of the utility model is specifically explained and illustrated.

[0055] Among them, Figure 1 and Figure 6As shown, the tray body 100 is provided with a reinforcing rib 101, and the reinforcing rib 101 and the tray body 100 are an integrated structure to improve the rigidity of the tray body 100. Specifically, the tray body 100 can directly form the reinforcing rib 101 by forging. Of course, the reinforcing rib 101 can also be formed by stamping after the tray body 100 is formed. In this embodiment, it is preferred to form the reinforcing rib 101 by stamping. Compared with the traditional method of using split welding reinforcements on the tray to improve the rigidity, by integrally arranging the reinforcing rib 101 on the tray body 100, while improving the structural strength and rigidity of the tray, the number of parts is reduced, and the amount of welding is reduced, thereby reducing the production cost of the battery tray.

[0056] In order to improve the carrying capacity of the battery tray, such as Figures 1 to 5 As shown, the support beam assembly 200 includes a first support beam 201 and a second support beam 202, and the tray body 100 is connected to the second support beam 202, and the first support beam 201 is connected to the second support beam 202, and the battery module 400 is connected to the first support beam 201 by mechanical fastening, so that the battery module 400 is fixed to the tray body 100, as shown in FIG. Figures 13 to 15 Specifically, in order to improve the stability of the battery module 400 assembly, there are at least two second support beams 202. When there are two second support beams 202, the two second support beams 202 are respectively located on two opposite sides of the tray body 100. At the same time, there are at least two first support beams 201, the first support beams 201 are perpendicular to the second support beams 202, and the two ends of the first support beams 201 are respectively connected to the second support beams 202 on the two opposite sides of the tray body 100 to form a frame structure system, so that the frame serves as a load-bearing body, thereby improving the load-bearing performance of the battery tray.

[0057] It should be noted that the number of the first support beams 201 may also be one, three or four. When the number of the first support beams 201 is one, the first support beam 201 may be arranged at the mid-span position so that one or more battery modules 400 connected to the first support beam 201 can ensure installation stability. The number of the first support beams 201 may also be two, three or four to improve the stability of the assembly of the battery module 400, and more battery modules 400 may be installed, thereby increasing the total voltage or total capacity of the battery pack. Of course, the number of the second support beams 202 may also be one, three or four, that is, the second support beam 202 may be arranged on one side of the tray body 100, or the second support beam 202 may be arranged on three sides or four sides of the tray body 100.

[0058] like Fig.13 and Fig.14As shown, in a specific embodiment, the tray body 100 is rectangular, and the tray body 100 has long sides and short sides that are perpendicular to each other. The number of first support beams 201 is four, the number of second support beams 202 is two, and the two second support beams 202 are respectively located at the two long sides of the tray body 100, wherein two first support beams 201 are arranged at the mid-span position of the tray body 100, and the other two first support beams 201 are respectively located at the two short sides of the tray body 100. In addition, the number of battery modules 400 is four, and the two ends of each battery module 400 are respectively connected and fixed to the first support beams 201 at the short sides of the tray body 100 and the first support beams 201 at the mid-span position of the tray body 100 by mechanical fastening. Of course, the number of the first support beams 201 can also be three, that is, a first support beam 201 is set at the mid-span position of the tray body 100, and the first support beam 201 at the mid-span position of the tray body 100 is widened, so that the two battery modules 400 can share the first support beam 201 at the mid-span position of the tray body 100, so as to further reduce the number of parts and reduce the production cost of the battery tray.

[0059] Furthermore, if Figure 1 As shown, the support beam assembly 200 is formed by extrusion, rolling or bending of a profile with high rigidity, thereby improving the strength and rigidity of the first support beam 201 and the second support beam 202, thereby further improving the load-bearing performance of the battery tray. At the same time, a hoisting hole 2025 is provided on the second support beam 202 to facilitate the hoisting operation of the battery tray. Compared with the traditional method of welding the hanging ears at the position of the tray frame, the number of tray parts is reduced, the assembly molding time is shortened, the assembly efficiency is improved, and the welding amount is reduced, thereby reducing the cost of the battery tray. In order to improve the stability of the hoisting operation, two hoisting holes 2025 are provided on each second support beam 202, thereby forming four hoisting point positions to ensure the stability of the hoisting operation. Of course, three, four or more hoisting holes 2025 can also be provided on the second support beam 202 to achieve the adjustability of the hoisting position.

[0060] Furthermore, if Figures 1 to 3As shown, the battery tray also includes a cooling plate 300, and the cooling plate 300 is connected to the second support beam 202, and the first support beam 201 is arranged on the cooling plate 300. By installing the battery module 400 on the first support beam 201, part of the surface of the battery module 400 is in contact with the cooling plate 300, so as to dissipate heat and cool the battery module 400, and ensure the stability of the battery pack. Specifically, the cooling plate 300 includes a cooling pipeline, and the cooling plate 300 is respectively provided with a liquid inlet 301 and a liquid outlet 302 connected to the cooling pipeline. By allowing the cooling medium to flow into the cooling plate 300 from the liquid inlet 301 and out of the liquid outlet 302, a cooling cycle is formed, thereby improving the heat dissipation efficiency of the cooling plate 300.

[0061] In a specific embodiment, the cooling plate 300 adopts a water-cooled plate, that is, the cooling medium is cooled by water, so as to further reduce the manufacturing cost of the battery pack. At the same time, in order to facilitate the connection of the external device with the liquid inlet 301 and the liquid outlet 302 of the cooling plate 300, a bend pipe is respectively provided at the position of the liquid inlet 301 and the liquid outlet 302, so that it can be connected to the external device through the bend pipe. Among them, the bend pipe can be welded to the position of the liquid inlet 301 and the liquid outlet 302 of the cooling plate 300, or it can be connected to the position of the liquid inlet 301 and the liquid outlet 302 of the cooling plate 300 in a detachable manner, such as by threaded connection, plug-in or snap-on detachable manner. It should be noted that the cooling medium can not only be water, but also a mixed liquid of ethylene glycol and water, so as to form a coolant with antifreeze performance, which can prevent the cooling medium from freezing in a low temperature environment, resulting in reduced heat dissipation efficiency. Of course, the cooling medium can also be oil, such as transformer oil, which not only has a heat dissipation and cooling effect, but also has good insulation performance.

[0062] In order to ensure the uniformity of the rigidity and strength of the tray body 100, as Figure 6As shown, in a specific embodiment, the reinforcing rib 101 includes a plurality of stamping ribs 1011 formed by stamping, and each stamping rib 1011 is arranged in a crisscross manner to ensure the uniformity of the rigidity and strength of the pallet body 100 and avoid the local deformation of the pallet body 100. At the same time, at the mid-span position where the pallet body 100 is subjected to greater force, the number and width of the stamping ribs 1011 are increased to increase the bearing capacity of the mid-span position of the pallet body 100, thereby avoiding the deformation of the mid-span position of the pallet body 100 due to greater force. Specifically, when the pallet body 100 is rectangular, at the mid-span position of the pallet body 100, two stamping ribs 1011 are arranged along the short sides parallel to the pallet body 100, and the stamping ribs 1011 along the long sides parallel to the pallet body 100 are widened to increase the bearing capacity of the mid-span position of the pallet body 100. Of course, at the mid-span position of the pallet body 100, the stamping ribs 1011 parallel to the short sides of the pallet body 100 can also be widened, and two stamping ribs 1011 can be set along the long sides parallel to the pallet body 100 to increase the load-bearing performance at the mid-span position of the pallet body 100. Alternatively, the number and width of the stamping ribs 1011 can be increased in both directions to improve the load-bearing performance at the mid-span position of the pallet body 100. It should be noted that the stamping ribs 1011 can also be distributed in a ring shape, or in a diagonal cross distribution, etc., which is not limited herein.

[0063] Furthermore, if Figures 6 to 8 As shown, the stamping rib 1011 includes at least one convex rib 1012, and the convex rib 1012 protrudes in a direction away from the cooling plate 300 to form a liquid collecting groove on the tray body 100, and at least one drainage hole 1013 is provided on the tray body 100, and the drainage hole 1013 is connected to the liquid collecting groove. Through the liquid collecting groove formed on the tray body 100, the condensed water formed at the bottom of the cooling plate 300, the leakage of the cooling plate 300 or the foreign liquid can be collected in an orderly manner and discharged through the drainage hole 1013 connected to the liquid collecting groove, thereby improving the safety of the battery pack. In this embodiment, as shown in FIG. Figures 7 and 8 As shown, the number of ribs 1012 is one, and it is arranged on the long side of the tray body 100. At the same time, the number of drainage holes 1013 is one, and the drainage hole 1013 is arranged at one end of the ribs 1012 and is connected to the liquid collecting groove formed by the ribs 1012 on the tray body 100, that is, the drainage hole 1013 is arranged in the liquid collecting groove, so that the liquid in the liquid collecting groove can be smoothly discharged from the drainage hole 1013. Of course, the number of ribs 1012 is not limited to one, that is, the number of liquid collecting grooves formed by the ribs 1012 on the tray body 100 is not limited to one, and the number of ribs 1012 can be two, three or more, and the distribution form of the ribs 1012 can be as follows Figure 6The strip distribution shown may also be a ring distribution or a polygonal distribution, etc. The number of drainage holes 1013 is not limited to one, but may be two, three or more arranged in the liquid collecting tank, thereby improving the drainage efficiency of the drainage tank and further ensuring the safety of the battery pack.

[0064] Furthermore, the tray body 100, the cooling plate 300 and the first support beam 201 can be directly fixed to the second support beam 202 by welding, friction stir welding or bonding, or can be fixed to the second support beam 202 by a detachable method, such as bolt connection, riveting, snap connection and mortise and tenon connection or one or more combination connection methods. Figure 4 As shown, the tray body 100, the cooling plate 300 and the first support beam 201 are connected and fixed to the second support beam 202 in a detachable manner, so as to facilitate the disassembly and maintenance of the battery pack, reduce the amount of welding, and reduce the cost of the battery tray. Specifically, the tray body 100, the cooling plate 300 and the first support beam 201 and the second support beam 202 are connected and fixed by fasteners 2026, wherein the fasteners 2026 can be bolts or self-tapping screws.

[0065] like Figures 9 to 12 As shown, in order to facilitate the connection between the tray body 100, the cooling plate 300, the first support beam 201 and the second support beam 202, and to ensure the connection strength between the tray body 100, the cooling plate 300, the first support beam 201 and the second support beam 202, a support portion 2021 is provided on the second support beam 202, and the tray body 100, the cooling plate 300 and the first support beam 201 are respectively connected to the support portion 2021. Specifically, the second support beam 202 and the support portion 2021 are an integrated structure, and the second support beam 202 is formed by bending the profile multiple times to form a closed rectangular cross-section, and an extended edge extending outward is formed at the closing position, so that the support portion 2021 connected to the tray body 100, the cooling plate 300 and the first support beam 201 is formed at the position of the extended edge. The extended edge is formed by stacking the head end and the tail end of the profile, and can be fixed by welding or bonding, and of course, can also be connected and fixed with the tray body 100, the cooling plate 300 and the first support beam 201 through the fastener 2026. It should be noted that the support portion 2021 can also adopt a split structure with the second support beam 202, that is, the second support beam 202 is formed by bending the profile for multiple times to form a closed rectangular cross-section, and then the support portion 2021 is fixed to the bottom of the second support beam 202 by welding or bonding. Of course, the support portion 2021 can also be fixed to the bottom of the second support beam 202 by screws.

[0066] In a specific embodiment, if Fig. 9As shown, the tray body 100, the cooling plate 300 and the first support beam 201 are connected to the same side of the support portion 2021, that is, the tray body 100, the cooling plate 300 and the first support beam 201 are placed on the support portion 2021 of the second support beam 202 in sequence, and the tray body 100, the cooling plate 300, the first support beam 201 and the support portion 2021 are connected and fixed by fasteners 2026. Of course, as Fig.10 As shown, the cooling plate 300 and the first support beam 201 can also be connected to the same side of the support portion 2021, and the tray body 100 can be connected to the side of the support portion 2021 opposite to the cooling plate 300, that is, the cooling plate 300 is placed on the upper surface of the support portion 2021, and the first support beam 201 is placed on the cooling plate 300, and the tray body 100 is fitted with the lower surface of the support portion 2021, and the tray body 100, the cooling plate 300, the first support beam 201 and the support portion 2021 are connected and fixed by fasteners 2026. It should be noted that the tray body 100, the cooling plate 300, the first support beam 201 and the support portion 2021 can also be connected and fixed by welding or bonding.

[0067] In another specific embodiment, Fig.11As shown, a notch 2022 for mounting the tray body 100 is provided on the support portion 2021 of the second support beam 202, and the tray body 100 and the support portion 2021 are on the same plane to form a first support plane 2023 for supporting the cooling plate 300. Specifically, the profile has a first side edge and a second side edge that are arranged opposite to each other, and the first side edge is a side edge located at the head end of the profile, and the second side edge is a side edge located at the tail end of the profile. When the profile is bent multiple times to form a closed rectangular cross-section, and an extended edge extending outward is formed at the closing position, the length of the first side edge of the profile extending outward is less than the length of the second side edge of the profile extending outward, thereby forming a notch 2022 on the support portion 2021. During assembly, the tray body 100 is placed on the bottom wall of the slot 2022 of the support portion 2021, and the upper surface of the tray body 100 is in the same plane as the upper surface of the support portion 2021, thereby forming a first support plane 2023, and the cooling plate 300 is placed on the first support plane 2023, and the first support beam 201 is placed on the cooling plate 300. At this time, the cooling plate 300, the first support beam 201 and the support portion 2021 are connected and fixed by fasteners 2026. Since the tray body 100 is located between the bottom wall of the slot 2022 and the cooling plate 300, the fastening force applied by the fasteners 2026 to the cooling plate 300 and the support portion 2021 causes the bottom wall of the slot 2022 and the cooling plate 300 to apply a clamping force to the tray body 100, thereby fastening the tray body 100. In addition, when there are two second support beams 202, and the two second support beams 202 are located on opposite sides of the tray body 100, by installing the two side edges of the tray body 100 in the notches 2022 on the support portions 2021 of the two second support beams 202, respectively, the movement of the tray body 100 in the direction perpendicular to the second support beams 202 can be limited, further ensuring the stability of the connection between the tray body 100, the cooling plate 300, the first support beam 201 and the support portions 2021 of the second support beams 202. It should be noted that the tray body 100 can also be fixed in the notches 2022 on the support portions 2021 of the second support beams 202 by welding or bonding, so as to limit the movement of the tray body 100 in the direction parallel to the second support beams 202, thereby improving the connection strength and stability of the tray body 100. Of course, a second support beam 202 may also be provided on the four sides of the tray body 100, so that the four sides of the tray body 100 are installed in the groove 2022 on the support portion 2021 of the second support beam 202 to limit the movement of the tray body 100 in the direction parallel to the second support beam 202 and the direction perpendicular to the second support beam 202.

[0068] In another specific embodiment, Fig.12As shown, a connection end 102 is provided on the tray body 100, and the connection end 102 is formed by bending to form a first fitting portion 1021 and a second fitting portion 1022 arranged opposite to the first fitting portion 1021. Among them, the support portion 2021 is fitted with the first fitting portion 1021, the cooling plate 300 is connected to the connection end 102 of the tray body 100, and the cooling plate 300 is fitted with the second fitting portion 1022, and the connection end 102 of the tray body 100 and the cooling plate 300 are on the same plane to form a second support plane 2024 for supporting the first support beam 201. Specifically, the connection end 102 of the tray body 100 is bent to form a first groove on the lower surface of the tray body 100, and a second groove is formed on the upper surface of the tray body 100, and the first fitting portion 1021 is located on the side wall of the first groove, and the second fitting portion 1022 is located on the side wall of the second groove. During assembly, the support portion 2021 of the second support beam 202 is installed in the first groove, and the end of the support portion 2021 of the second support beam 202 is in contact with the first fitting portion 1021, and the lower surface of the support portion 2021 of the second support beam 202 is in the same plane as the lower surface of the tray body 100. The cooling plate 300 is installed in the second groove, and the end of the cooling plate 300 is in contact with the second fitting portion 1022, and the upper surface of the connection end 102 of the tray body 100 is ensured to be in the same plane as the upper surface of the cooling plate 300, so as to form a second support plane 2024, and the first support beam 201 is placed on the second support plane 2024, and the first support beam 201, the connection end 102 of the tray body 100 and the support portion 2021 of the second support beam 202 are connected and fixed by the fastener 2026. Since the cooling plate 300 is located between the bottom wall of the second groove and the first support beam 201, the fastening force applied by the fastener 2026 to the first support beam 201, the tray body 100 and the support portion 2021 causes the bottom wall of the second groove and the first support beam 201 to apply a clamping force to the cooling plate 300, thereby fastening the cooling plate 300. In addition, when there are two second support beams 202, the two second support beams 202 are located on opposite sides of the tray body 100, and the two opposite sides of the tray body 100 are provided with connecting ends 102. By installing the two sides of the cooling plate 300 in the second grooves on the connecting ends 102 on the two side edges of the tray body 100, the movement of the cooling plate 300 in the direction perpendicular to the second support beam 202 can be limited, and the stability of the connection between the tray body 100, the cooling plate 300, the first support beam 201 and the support portion 2021 of the second support beam 202 is further ensured. It should be noted that the cooling plate 300 can also be fixed in the second groove of the connecting end 102 of the tray body 100 by welding or bonding to limit the movement of the cooling plate 300 in a direction parallel to the second support beam 202 and improve the connection strength and stability of the cooling plate 300.Of course, second support beams 202 may be provided on all four sides of the tray body 100, and connecting ends 102 may be provided on all four sides of the tray body 100, so that all four sides of the cooling plate 300 may be installed in second grooves on the connecting ends 102 of the tray body 100 to limit the movement of the cooling plate 300 in directions parallel to and perpendicular to the second support beam 202.

[0069] like Figures 13 to 15 As shown, the embodiment of the utility model further discloses a battery pack, including a battery module 400 and a battery tray. The battery tray is the battery tray disclosed in the above embodiment, and therefore has all the technical effects of the above battery tray, which will not be described in detail herein. Among them, a cooling plate 300 is provided on the tray body 100, and the battery module 400 is fitted with the cooling plate 300, and the battery module 400 is mechanically fastened to the first support beam 201. Specifically, the battery module 400 is mechanically fastened to the first support beam 201 so that part of the surface of the battery module 400 is fitted with the cooling plate 300, thereby achieving the purpose of cooling and dissipating the heat of the battery module 400 and ensuring the stability of the battery pack operation.

[0070] The terms "first" and "second" in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0071] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery tray, characterized in that: include: A tray body (100), wherein the tray body (100) is integrally provided with reinforcing ribs (101); A support beam assembly (200), the support beam assembly (200) comprising a first support beam (201) and a second support beam (202), the first support beam (201) being used to install a battery module (400), and the second support beam (202) being used to connect the tray body (100) and the first support beam (201).

2. The battery tray according to claim 1, characterized in that: Also included is a cooling plate (300) for dissipating heat from the battery module (400); The cooling plate (300) is connected to the second supporting beam (202), and the first supporting beam (201) is arranged on the cooling plate (300).

3. The battery tray according to claim 2, characterized in that: The cooling plate (300) comprises a cooling pipeline, and the cooling plate (300) is respectively provided with a liquid inlet (301) and a liquid outlet (302) which are in communication with the cooling pipeline.

4. The battery tray according to claim 2, characterized in that: The reinforcing ribs (101) include a plurality of stamping ribs (1011), and each of the stamping ribs (1011) is arranged in a crisscross pattern.

5. The battery tray according to claim 4, characterized in that: The stamping rib (1011) includes at least one convex rib (1012), and the convex rib (1012) protrudes in a direction away from the cooling plate (300) to form a liquid collecting trough on the tray body (100), and at least one drainage hole (1013) is provided on the tray body (100), and the drainage hole (1013) is connected to the liquid collecting trough.

6. The battery tray according to claim 2, characterized in that: The second support beam (202) is provided with a support portion (2021), and the tray body (100), the cooling plate (300) and the first support beam (201) are respectively connected to the support portion (2021).

7. The battery tray according to claim 6, characterized in that: The tray body (100), the cooling plate (300) and the first support beam (201) are connected to the same side of the support portion (2021); or, The cooling plate (300) and the first support beam (201) are connected to the same side of the support portion (2021), and the tray body (100) is connected to the side of the support portion (2021) opposite to the cooling plate (300).

8. The battery tray according to claim 6, characterized in that: The support portion (2021) is provided with a slot (2022) for mounting the tray body (100), and the tray body (100) and the support portion (2021) are on the same plane to form a first support plane (2023) for supporting the cooling plate (300).

9. The battery tray according to claim 6, characterized in that: The tray body (100) is provided with a connecting end (102), and the connecting end (102) is bent to form a first fitting portion (1021) and a second fitting portion (1022) arranged opposite to the first fitting portion (1021); The supporting portion (2021) is bonded to the first bonding portion (1021), the cooling plate (300) is connected to the connecting end (102) of the tray body (100), and the cooling plate (300) is bonded to the second bonding portion (1022), and the connecting end (102) of the tray body (100) and the cooling plate (300) are on the same plane to form a second supporting plane (2024) for supporting the first supporting beam (201).

10. The battery tray according to any one of claims 1 to 9, characterized in that: The support beam assembly (200) is formed by extrusion, rolling or bending; and / or, The second support beam (202) is provided with a hoisting hole (2025).

11. A battery pack, characterized in that: It comprises a battery module (400) and a battery tray as claimed in any one of claims 1 to 10, wherein a cooling plate (300) is provided on the tray body (100), and the battery module (400) is fitted with the cooling plate (300), and the battery module (400) is connected to the first support beam (201) by mechanical fastening.

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