Battery pack and energy storage system

Abstract

The utility model provides a battery pack and an energy storage system, and relates to the technical field of batteries, and the battery pack comprises a shell, and a first limiting clamping groove and a second limiting clamping groove which are formed in the shell; the orientation of the notch of the first limiting clamping groove is opposite to that of the notch of the second limiting clamping groove; and the battery pack is configured to be clamped on the mounting bracket through the first limiting clamping groove and the second limiting clamping groove. The battery pack can be clamped and fixed through the first limiting clamping groove and the second limiting clamping groove with opposite notches, the installation process is simplified, and the installation efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and more particularly to a battery pack and an energy storage system. Background Art

[0002] With the development of technology, electrical equipment has become more and more popular, and energy storage battery packs have developed rapidly. During the use of an energy storage battery pack, multiple energy storage battery packs need to be fixed in specific positions to form an energy storage system. Therefore, a suitable installation structure needs to be provided on the energy storage battery pack.

[0003] In the related art, energy storage battery packs are usually installed and fixed using hanging ears. During the assembly of the energy storage system, fasteners for fixing the hanging ears need to be installed on the hanging ears one by one, and the installation is very cumbersome. Summary of the Utility Model

[0004] Embodiments of this application provide a battery pack and an energy storage system, which simplify the installation process and improve the installation efficiency.

[0005] In a first aspect, embodiments of this application provide a battery pack, including a housing and a first limiting slot and a second limiting slot provided on the housing;

[0006] The notch direction of the first limiting slot is opposite to the notch direction of the second limiting slot;

[0007] The battery pack is configured to be clamped to an installation bracket through the first limiting slot and the second limiting slot.

[0008] In some embodiments, the housing includes a first end and a second end located at opposite ends in a first direction;

[0009] The first limiting slot and the second limiting slot are provided at at least one end of the housing in a second direction; the second direction is perpendicular to the first direction;

[0010] The notch direction of the first limiting slot faces away from the second end, and the notch direction of the second limiting slot faces away from the first end.

[0011] In some embodiments, a bending structure is provided at at least one end of the housing in the second direction, the bending structure is close to the first end, and a first limiting slot is formed between the bending structure and the housing;

[0012] And / or, a limiting block is provided at the bottom of at least one end of the second end of the housing in the second direction, the limiting block is close to the second end;

[0013] A second limiting slot is formed between the limiting block and the housing.

[0014] In some embodiments, the notch of the first limiting card slot extends along the third direction, the notch of the second limiting card slot extends along the second direction, and the third direction, the first direction, and the second direction are perpendicular to each other in pairs.

[0015] In some embodiments, the width of the notch of the first limiting card slot is h, and the distance that the bending structure protrudes from the housing is H, where 0.5H ≤ h ≤ 0.7H.

[0016] In some embodiments, the distance H that the bending structure protrudes from the housing is 6 mm - 16 mm;

[0017] And / or, the width L of the bending structure is 15 mm - 30 mm.

[0018] In some embodiments, the notch of the first limiting card slot is provided with a draft angle; the draft angle is 1° - 4°.

[0019] In some embodiments, the housing includes a shell and a bottom plate. The bottom plate is located below the shell, and the shell and the bottom plate are connected;

[0020] Both the first limiting card slot and the second limiting card slot are provided on the bottom plate.

[0021] In some embodiments, the bottom plate is a liquid cooling plate;

[0022] One end of the liquid cooling plate is provided with a liquid cooling pipe and at least one anti-collision hanging ear, and the distance that the anti-collision hanging ear protrudes from the liquid cooling plate is greater than the distance that the liquid cooling pipe protrudes from the liquid cooling plate.

[0023] In some embodiments, the difference between the distance that the anti-collision hanging ear protrudes from the liquid cooling plate and the distance that the liquid cooling pipe protrudes from the liquid cooling plate is t, and t ≥ 3 mm.

[0024] In some embodiments, the battery pack further includes lifting lugs. A plurality of lifting lugs are distributed in the circumferential direction of the housing, and the lifting lugs are detachably connected to the housing.

[0025] In a second aspect, the present application provides an energy storage system, including the battery pack as above and a mounting bracket;

[0026] The mounting bracket is provided with a first limiting buckle and a second limiting buckle, and the first limiting buckle and the second limiting buckle are respectively clamped with the first limiting card slot and the second limiting card slot on the battery pack;

[0027] In some embodiments, the first limiting buckle is detachably connected to the mounting bracket, and the second limiting buckle is fixedly arranged on the mounting bracket.

[0028] In some embodiments, the first limiting buckle includes a connecting portion and a clamping portion connected to each other;

[0029] The connecting portion is detachably connected to the mounting bracket;

[0030] The clamping portion is provided with a groove, and the first limiting buckle is clamped with the first limiting card slot through the groove.

[0031] Advantages of the embodiments of the present application:

[0032] In the embodiments of the present application, the battery pack includes a housing, and a first limiting card slot and a second limiting card slot provided on the housing. The openings of the first limiting card slot and the second limiting card slot face away from each other. When the battery pack is installed on the mounting bracket, it can be installed and fixed through the first limiting card slot and the second limiting card slot with opposite openings, so as to clamp and fix the battery pack from two opposite directions, simplifying the installation process and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 is the three-dimensional structure of the battery pack provided by the embodiment of the present application Figure 1 ;

[0035] Figure 2 is Figure 2 the enlarged structure diagram at A in

[0036] Figure 3 is the three-dimensional structure of the battery pack provided by the embodiment of the present application Figure 2 ;

[0037] Figure 4 is Figure 3 the enlarged structure diagram at B in

[0038] Figure 5 is the bottom view of the battery pack provided by the present application;

[0039] Figure 6 is Figure 5 the enlarged structure diagram at C in

[0040] Figure 7 is the structure diagram of the first limiting card slot provided by the embodiment of the present application;

[0041] Figure 8 is the structure diagram of the anti-collision hanging ear provided by the present application;

[0042] Figure 9 is the top view of the battery pack provided by the present application;

[0043] Figure 10 isFigure 9 The enlarged structure diagram at position D in

[0044] Figure 11 is the schematic structural diagram of the battery pack installed on the mounting bracket provided by this application;

[0045] Figure 12 is Figure 11 The enlarged structure diagram at position E in

[0046] Figure 13 is Figure 11 The enlarged structure diagram at position F in

[0047] Figure 14 is the schematic structural diagram of the energy storage system provided by this application;

[0048] Figure 15 is the schematic structural diagram of the first limit buckle provided by this application.

[0049] Explanation of reference numerals:

[0050] 100, battery pack; 1, outer shell; 11, housing; 12, bottom plate; 121, first limit card slot; 1211, bending structure; 122, second limit card slot; 1221, limit block; 123, installation groove; 124, lifting lug; 1241, installation part; 1242, hoisting part; 125, liquid cooling pipe; 126, anti-collision hanging ear; 2, mounting bracket; 21, first limit buckle; 211, connecting part; 212, clamping part; 22, second limit buckle; 3, container; 200, energy storage system. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application. In addition, it should be understood that the specific implementation manners described herein are only used to explain and illustrate this application, and are not used to limit this application. In this application, unless otherwise stated, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; and "inner" and "outer" refer to the outline of the device.

[0052] To reduce the occurrence of the above problems, as Figure 1-2As shown in the figure, an embodiment of the present application provides a battery pack 100, which includes a housing 1 and a first limiting slot 121 and a second limiting slot 122 provided on the housing 1. Among them, the notch directions of the first limiting slot 121 and the second limiting slot 122 are opposite to each other. The battery pack 100 can be clamped on the mounting bracket 2 through the first limiting slot 121 and the second limiting slot 122 with opposite notch directions, so as to realize the installation and fixation of the battery pack 100.

[0053] Exemplarily, as Figure 1 shown, the housing 1 is a cuboid structure. The housing 1 includes a first end plate and a second end plate at opposite ends in the first direction X, and a first side plate and a second side plate connecting the first end plate and the second end plate. The first side plate and the second side plate are respectively arranged at opposite ends in the second direction Y.

[0054] The first limiting slot 121 can be arranged on the first end plate of the battery pack 100, and the second limiting slot can be arranged on the second end plate of the battery pack 100. Or, the first limiting slot 121 can be arranged on the first side plate and the second side plate of the battery pack 100, and the second limiting slot can be arranged on the second end plate of the battery pack 100. Or, both the first limiting slot 121 and the second limiting slot 122 are arranged on the first side plate and the second side plate of the battery pack 100. Since the notch directions of the first limiting slot 121 and the second limiting slot 122 are opposite to each other, when the battery pack 100 is fixed through the first limiting slot 121 and the second limiting slot 122, the battery pack 100 can be fixed from two opposite directions, thus simplifying the installation process of the battery pack 100 and improving the installation efficiency. In addition, when the battery pack 100 is clamped and fixed, the influence of bumps or vibrations on the battery pack 100 can also be reduced, thereby improving the installation stability of the battery pack 100 and reducing the safety risk.

[0055] In the related art, if hanging ears are used for fixation, the mounting holes on the hanging ears need to be strictly aligned, and a relatively large gap needs to be reserved for operating the installation of fasteners, thus increasing the complexity of installation and the installation difficulty. If the reserved gap is increased to reduce the installation difficulty, the space utilization rate in the energy storage system will be reduced. In the present application, the installation and fixation method using slots is adopted. The docking of the slot and the buckle is relatively convenient, and there is no need to install fasteners in a narrow gap. Therefore, the complexity of installation is reduced and the installation efficiency is improved.

[0056] In addition, when the mounting ears are used for installation, the mounting ears are usually dispersedly distributed around the circumference of the battery pack 100, and then installed and fixed by multiple dispersed mounting ears, which is equivalent to fixing by multiple "points" dispersedly arranged around the circumference of the battery pack 100. When the battery pack 100 encounters bumps during transfer or vibrations during operation, it is easy to cause one or more mounting ears to loosen, thereby causing the installation stability of the battery pack 100 to deteriorate or even fall off. In the present application, the first limit card slot 121 and the second limit card slot 122 with opposite notches are used to fix the battery pack 100, so that the battery pack 100 is clamped in the first direction X, thereby reducing the impact of shaking on the battery pack 100 and improving stability.

[0057] In some embodiments, the housing 1 includes a first end and a second end located at opposite ends of the first direction X, and the first limit slot 121 and the second limit slot 122 are disposed at at least one end of the housing 1 in the second direction Y, wherein the second direction Y is perpendicular to the first direction X, and the notch of the first limit slot 121 faces a direction away from the second end, and the notch of the second limit slot 122 faces a direction away from the first end. In other words, the first limit slot 121 and the second limit slot 122 are disposed on the first side plate and / or the second side plate of the battery pack 100.

[0058] Exemplarily, the first limit slot 121 and the second limit slot 122 may be respectively disposed on the first side plate and the second side plate of the battery pack 100. The first limit slot 121 and the second limit slot 122 may also be disposed on the first side plate or the second side plate of the battery pack 100 at the same time. The first limit slot 121 and the second limit slot 122 may also be disposed on the first side plate and the second side plate of the battery pack 100 at the same time.

[0059] By arranging the first limiting slot 121 and the second limiting slot 122 at at least one end of the battery pack 100 in the second direction Y, that is, on the side plate of the battery pack 100 , the installation efficiency of the battery pack 100 can be improved and the stability after installation can be improved.

[0060] It is understandable that the first limiting slot 121 and the second limiting slot 122 may also be arranged in other ways. Since the slots of the first limiting slot 121 and the second limiting slot 122 face opposite to each other, when the battery pack 100 is fixed by the first limiting slot 121 and the second limiting slot 122, it can be clamped and fixed.

[0061] In some other embodiments, the first limiting slot 121 and the second limiting slot 122 are respectively arranged at the first end and the second end of the housing 1 opposite to each other in the first direction X, and the notch of the first limiting slot 121 faces away from the second end, and the notch of the second limiting slot 122 faces away from the first end. That is to say, the first limiting slot 121 and the second limiting slot 122 are respectively arranged on the first end plate and the second end plate of the battery pack 100, and the notch of the first limiting slot 121 faces away from the second end plate, and the notch of the second limiting slot 122 faces away from the first end plate.

[0062] The battery pack 100 can be clamped and fixed on the mounting bracket 2 through the first limiting slot 121 and the second limiting slot 122 respectively arranged on the first end plate and the second end plate, so as to improve the installation efficiency of the battery pack 100.

[0063] In some other embodiments, the first limiting slot 121 is arranged at at least one end of the housing 1 in the second direction Y, the second limiting slot 122 is arranged at the second end of the housing 1, and the notch of the first limiting slot 121 faces away from the second end, and the notch of the second limiting slot 122 faces away from the first end. That is to say, the first limiting slot 121 can be arranged on the first side plate and / or the second side plate of the battery pack 100, the second limiting slot 122 is arranged on the second end plate of the battery pack 100, and the notches of the first limiting slot 121 and the second limiting slot 122 face away from each other.

[0064] The battery pack 100 can be clamped and fixed through the first limiting slot 121 arranged on the first side plate and / or the second side plate, and the second limiting slot 122 arranged on the second end plate, so as to improve the installation efficiency of the battery pack 100.

[0065] In some other embodiments, the first limiting slot 121 is arranged at the first end of the housing 1, the second limiting slot 122 is arranged at at least one end of the housing 1 in the second direction Y, and the notch of the first limiting slot 121 faces away from the second end, and the notch of the second limiting slot 122 faces away from the first end. That is to say, the first limiting slot 121 can be arranged on the first end plate of the battery pack 100, the second limiting slot 122 is arranged on the first side plate and / or the second side plate of the battery pack 100, and the notches of the first limiting slot 121 and the second limiting slot 122 face away from each other.

[0066] The battery pack 100 can be clamped and fixed through the first limiting slot 121 arranged on the first end plate, and the second limiting slot 122 arranged on the first side plate and / or the second side plate, so as to improve the installation efficiency of the battery pack 100.

[0067] In some embodiments, the housing 1 is provided with a bending structure 1211 at at least one end in the second direction Y. The bending structure 1211 is close to the first end, and a first limiting slot 121 is formed between the bending structure 1211 and the housing 1.

[0068] Exemplarily, as Figure 2 , 5 and 6 show, the bending structure 1211 can be in a shape similar to an "L". One end of the bending structure 1211 is connected to the side plate at at least one end of the housing 1 in the second direction Y, so as to form a first limiting slot 121 with the side plate.

[0069] Furthermore, the first limiting slots 121 are distributed on the first side plate and the second side plate at opposite ends of the housing 1 in the second direction Y, facilitating the installation and fixation of different positions of the battery pack 100.

[0070] Exemplarily, as Figure 1 , 3 and 5 show, the bending structure 1211 is arranged at one end of the first side plate and the second side plate close to the first end plate, forming a first limiting slot 121 with the notch facing away from the second end plate.

[0071] In some embodiments, the housing 1 is provided with at least one limiting block 1221 at at least one end in the second direction Y. The limiting block 1221 is close to the second end; a second limiting slot 122 is formed between the limiting block 1221 and the housing 1. That is, the second limiting slot 122 is formed by the limiting block 1221 at the bottom of at least one end of the housing 1 in the second direction Y and the housing 1 body, without protruding from the housing 1, reducing the space occupation and making full use of the structure of the housing 1 itself, improving the structural stability of the second limiting slot 122.

[0072] Exemplarily, as Figure 3-4 shows, a limiting block 1221 is respectively arranged at the bottom of opposite ends of the housing 1 in the second direction Y. A groove structure with the notch facing away from the first end is formed between the limiting block 1221 and the housing 1, which is the second limiting slot 122.

[0073] The bending structure 1211 is arranged at a position close to the first end of the housing 1, and the limiting block 1221 is arranged close to the second end of the housing 1, so that the formed first limiting slot 121 and second limiting slot 122 are respectively located at positions close to the first end and the second end of the housing 1. When the first limiting slot 121 and the second limiting slot 122 are used to install and fix the battery pack 100, the length of the clamped part of the housing 1 can be increased, thereby improving the stability.

[0074] It should be understood that in addition to the above-mentioned outer shell 1, the first limiting slot 121, and the second limiting slot 122, the battery pack 100 further includes components such as a battery module, a battery management system (BMS), and a fuse. The components such as the battery module, the BMS, and the fuse can be arranged in a similar or the same manner as in the prior art, and will not be specifically described herein.

[0075] In some embodiments, as Figure 1-4 shown, the notch of the first limiting slot 121 extends along the third direction Z, and the notch of the second limiting slot 122 extends along the second direction Y. The third direction Z, the second direction Y, and the second direction Y are perpendicular to each other in pairs. That is, the notch extension directions of the first limiting slot 121 and the second limiting slot 122 are perpendicular to each other. By making the notch extension directions of the first limiting slot 121 and the second limiting slot 122 perpendicular to each other, when the battery pack 100 is fixed through the first limiting slot 121 and the second limiting slot 122, the battery pack 100 can be limited from the vertical direction and the horizontal direction respectively, improving the installation stability.

[0076] In some embodiments, the width of the notch of the first limiting slot 121 is h, and the distance that the bending structure 1211 protrudes from the outer shell 1 is H, where 0.5H ≤ h ≤ 0.7H.

[0077] As Figure 7 shown, in order to facilitate the clamping through the notch of the first limiting slot 121 during the installation of the battery pack 100 and ensure that the structure of the first limiting slot 121 has a certain structural strength, the width h of the notch of the first limiting slot 121 and the distance H that the bending structure 1211 protrudes from the outer shell 1 satisfy the condition of 0.5H ≤ h ≤ 0.7H.

[0078] In some embodiments, the distance that the bending structure 1211 protrudes from the outer shell 1 is 6 mm - 16 mm. That is to say, the distance that the structure of the first limiting slot 121 protrudes from the outer shell 1 is 6 mm - 16 mm.

[0079] If the distance that the first limiting slot 121 protrudes from the outer shell 1 is too large, it will cause more occupation of the space outside the battery pack 100. During the installation of the battery pack 100, in order to avoid interference, a large gap will be formed between the battery pack 100 and the installation structure, thus affecting the space utilization rate of the energy storage system. If the protruding distance of the first limiting slot 121 is too small, there will be a problem of low structural strength, increasing the risk of fracture.

[0080] As Figure 7As shown, the bending structure 1211 is provided on the side plate of the housing 1. To control the size of the bending structure 1211 and ensure its structural strength, the distance H by which the bending structure 1211 protrudes from the housing 1 can be set to 6 mm - 16 mm. Exemplarily, the distance H by which the bending structure 1211 protrudes from the housing 1 can be set to 6 mm, 8 mm, 10 mm, 12 mm, or 16 mm.

[0081] The width L of the bending structure 1211 can be set to 15 mm - 30 mm to ensure the structural strength of the bending structure 1211. Exemplarily, the width L of the bending structure 1211 can be set to 15 mm, 18 mm, 21 mm, 24 mm, 27 mm, or 30 mm.

[0082] In some embodiments, a draft angle is provided at the notch of the first limiting slot 121; the draft angle is 1° - 4°.

[0083] By providing a draft angle at the notch of the first limiting slot 121, when installing the battery pack 100, it is convenient for the buckle to be inserted into the notch of the first limiting slot 121, improving the installation efficiency.

[0084] The draft angle is set to 1° - 4°, which not only facilitates the docking of the first limiting slot 121 and the buckle but also avoids a too large difference in width at different positions of the notch, resulting in a reduction in structural strength.

[0085] In some embodiments, as Figure 1 shown, the housing 1 includes a housing body 11 and a bottom plate 12. The bottom plate 12 is located below the housing body 11, and the housing body 11 and the bottom plate 12 are connected;

[0086] Both the first limiting slot 121 and the second limiting slot 122 are provided on the bottom plate 12.

[0087] As Figure 1-4 shown, the housing 1 includes an upper and a lower part. The bottom plate 12 is located below the housing body 11, and the housing body 11 and the bottom plate 12 are connected to form an integral body. Both the first limiting slot 121 and the second limiting slot 122 are provided on the bottom plate 12. By fixing the bottom plate 12, the installation of the battery pack 100 is realized. After the battery pack 100 is installed, the bottom plate 12 is clamped and fixed by the first limiting slot 121 and the second limiting slot 122. Since the bottom plate 12 and the housing body 11 are connected, the overall installation and fixation of the battery pack 100 are achieved.

[0088] In some embodiments, as Figure 9-10 shown, the bottom plate 12 is a liquid cooling plate;

[0089] One end of the liquid cooling plate is provided with a liquid cooling pipe 125 and at least one anti-collision hanging ear 126, and the distance that the anti-collision hanging ear 126 protrudes from the liquid cooling plate is greater than the distance that the liquid cooling pipe 125 protrudes from the liquid cooling plate.

[0090] The liquid cooling pipe 125 provided on the liquid cooling plate is used for liquid inlet and outlet to achieve liquid cooling of the battery pack 100. In order to prevent the liquid cooling pipe 125 from being collided and deformed during the transfer and hoisting of the battery pack 100, at least one anti-collision hanging ear 126 is also provided at the same end of the liquid cooling plate where the liquid cooling pipe 125 is provided. Since the protruding distance of the anti-collision hanging ear 126 is greater than the protruding distance of the liquid cooling pipe 125, it can protect the liquid cooling pipe 125.

[0091] Exemplarily, as Figure 10 shown, the difference between the distance that the anti-collision hanging ear 126 protrudes from the liquid cooling plate and the distance that the liquid cooling pipe 125 protrudes from the liquid cooling plate is t, and t≥3mm. By setting t≥3mm, the liquid cooling pipe 125 can be effectively protected, and the distance that the anti-collision hanging ear 126 protrudes from the battery pack 100 can be prevented from being too long, thereby reducing the interference between the anti-collision hanging ear 126 and other structures.

[0092] In some embodiments, as Figure 2 、 3 and shown in 7, the battery pack 100 further includes lifting lugs 124. A plurality of lifting lugs 124 are distributed in the circumferential direction of the outer shell 1, and the lifting lugs 124 are detachably connected to the outer shell 1.

[0093] When the battery pack 100 is installed in the energy storage system 200, it needs to be hoisted. The battery pack 100 can be hoisted by the lifting lugs 124 provided on the circumferential direction of the outer shell 1, so as to transfer the battery pack 100 to a suitable position.

[0094] In some embodiments, as Figure 2 、 4 、shown in 6 and 8, the lifting lug 124 includes a mounting portion and a hoisting portion;

[0095] A plurality of mounting grooves 123 are provided on the side plate of the outer shell 1, and the mounting portion 1241 is clamped with the mounting groove 123.

[0096] Exemplarily, as Figure 8As shown, the lifting lug 124 is generally L-shaped. One end of the L-shape is provided with an installation part 1241 for connecting with the installation slot 123 on the side plate of the housing 1. The other end of the L-shape is provided with a lifting part 1242, and a lifting hole is arranged in the lifting part 1242 for realizing the lifting of the battery pack 100. Setting the lifting lug 124 as L-shaped can reduce the distance that the lifting lug 124 protrudes from the housing 1 after installation, thereby improving the space utilization rate and reducing the interference between the lifting lug 124 and other structures; during lifting, the lifting lug 124 is installed into the installation slot 123. After the lifting is completed, the lifting lug 124 can be disassembled from the battery pack 100 to reduce the space occupied by the lifting lug 124 and achieve weight reduction of the battery pack 100.

[0097] Exemplarily, the installation part 1241 is an I-shaped buckle, and the shape of the installation slot 123 is adapted to it, which can realize the quick disassembly and assembly of the lifting lug 124.

[0098] In a second aspect, as Figure 11-13 shown, the present application provides an energy storage system 200, including the battery pack 100 and the installation bracket 2 as described above;

[0099] The installation bracket 2 is provided with a first limit buckle 21 and a second limit buckle 22, and the first limit buckle 21 and the second limit buckle 22 are respectively snap-connected with the first limit slot 121 and the second limit slot 122 on the battery pack 100.

[0100] By respectively snap-connecting the first limit buckle 21 with the first limit slot 121 and the second limit buckle 22 with the second limit slot 122, the battery pack 100 can be clamped between the first limit buckle 21 and the second limit buckle 22, thereby realizing the installation of the battery pack 100.

[0101] In some embodiments, the first limit buckle 21 is detachably connected to the installation bracket 2, and the second limit buckle 22 is fixedly arranged on the installation bracket 2.

[0102] When installing the battery pack 100, the second limit slot 122 can be first snap-connected with the second limit buckle 22 fixedly arranged on the installation bracket 2, and then the first limit buckle 21 detachably connected to the installation bracket 2 is snapped into the first limit slot 121, and then the first limit buckle 21 is connected to the installation bracket 2, thereby improving the convenience of installing the battery pack 100.

[0103] As Figure 15 shown, in some embodiments, the first limit buckle 21 includes a connecting part 211 and a clamping part 212 connected to each other;

[0104] The connecting part 211 is connected to the installation bracket 2;

[0105] The clamping portion 212 is provided with a groove, and the first limiting buckle 21 is clamped with the first limiting slot 121 through the groove.

[0106] The second limiting buckle 22 is fixedly arranged on the mounting bracket 2 and has a clamping hole matching the limiting block 1221. When the battery pack 100 is mounted on the mounting bracket 2, the limiting block 1221 is clamped with the clamping hole to realize the mounting and fixing of the battery pack 100.

[0107] Specifically, as Figure 11-13 shown in FIGS. 14 and 15, when the battery pack 100 is mounted on the mounting bracket 2, it is placed into the mounting bracket 2 along the first direction X. The second limiting buckle 22 is fixedly arranged inside the mounting bracket 2, and the first limiting buckle 21 is movably connected to the end of the mounting bracket 2. A set of corresponding second limiting buckles 22 and first limiting buckles 21 are arranged in parallel. When the battery pack 100 is mounted on the mounting bracket 2, the second limiting slot 122 at the rear end of the battery pack 100 is clamped with the second limiting buckle 22 fixedly arranged on the mounting bracket 2, and then the clamping portion 212 in the first limiting buckle 21 is clamped and connected with the first limiting slot 121, and the connecting portion 211 in the first limiting buckle 21 is mounted on the mounting bracket 2, thereby realizing the mounting of the battery pack 100.

[0108] For the convenience of mounting and fixing the battery pack 100, the second limiting buckle 22 can be fixedly arranged on the mounting bracket 2, while the first limiting buckle 21 can be movably connected to the mounting bracket 2. During the mounting process, first, the second limiting slot 122 on the battery pack 100 is clamped and connected with the second limiting buckle 22 on the mounting bracket, then the first limiting buckle 21 is limitedly connected with the first limiting slot 121 on the battery pack 100, and then the first limiting buckle 21 is fixed to the mounting bracket 2.

[0109] It should be noted that, in order to better show the connection relationship between the mounting bracket 2 and the battery pack 100, Figure 12 only a partial structure of the mounting bracket 2 is shown in FIGS. 14 and 15.

[0110] Furthermore, as Figure 14 shown in FIG. 16, the energy storage system 200 further includes a container 3, and the mounting bracket 2 is arranged in the container 3 to provide protection for the battery pack 100 and the mounting bracket 2.

[0111] The embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A battery pack, characterized in that: It comprises a housing and a first limit card slot and a second limit card slot arranged on the housing; The notch direction of the first limit slot is opposite to the notch direction of the second limit slot; The battery pack is configured to be clamped on the mounting bracket through the first limiting slot and the second limiting slot.

2. The battery pack according to claim 1, characterized in that: The housing comprises a first end and a second end located at opposite ends of a first direction; The first limit slot and the second limit slot are arranged at least at one end of the housing in the second direction; the second direction is perpendicular to the first direction; The notch of the first limiting slot faces a direction away from the second end, and the notch of the second limiting slot faces a direction away from the first end.

3. The battery pack according to claim 2, characterized in that: The housing is provided with a bending structure at at least one end in the second direction, the bending structure is close to the first end, and the first limiting slot is formed between the bending structure and the housing; And / or, a limiting block is provided at the bottom of at least one end of the housing in the second direction, and the limiting block is close to the second end; The second limiting slot is formed between the limiting block and the housing.

4. The battery pack according to claim 2, characterized in that: The notch of the first limiting slot extends along a third direction, the notch of the second limiting slot extends along the second direction, and the third direction, the first direction and the second direction are perpendicular to each other.

5. The battery pack according to claim 3, characterized in that: The slot width of the first limiting slot is h, the distance that the bending structure protrudes from the housing is H, and 0.5H≤h≤0.7H.

6. The battery pack according to claim 5, characterized in that: The distance H of the bending structure protruding from the housing is 6mm-16mm; And / or, the width L of the bending structure is 15 mm-30 mm.

7. The battery pack according to claim 2, characterized in that: The notch of the first limiting slot is provided with a draft angle; the draft angle is 1°-4°.

8. The battery pack according to any one of claims 1 to 7, characterized in that: The housing comprises a shell and a bottom plate, wherein the bottom plate is located below the shell, and the shell and the bottom plate are connected; The first limit slot and the second limit slot are both arranged on the bottom plate.

9. The battery pack according to claim 8, characterized in that: The bottom plate is a liquid cooling plate; A liquid cooling tube and at least one anti-collision hanging ear are provided at one end of the liquid cooling plate, and the distance that the anti-collision hanging ear protrudes from the liquid cooling plate is greater than the distance that the liquid cooling tube protrudes from the liquid cooling plate.

10. The battery pack according to claim 9, characterized in that: The difference between the distance that the anti-collision hanging ear protrudes from the liquid cooling plate and the distance that the liquid cooling tube protrudes from the liquid cooling plate is t, and t≥3mm.

11. The battery pack according to any one of claims 1 to 7 or 9 to 10, characterized in that: The battery pack further comprises a lifting ear, a plurality of the lifting ears are distributed in the circumference of the shell, and the lifting ears are detachably connected to the shell.

12. An energy storage system, characterized in that: Comprising a battery pack and a mounting bracket as described in any one of claims 1 to 11; The mounting bracket is provided with a first limit buckle and a second limit buckle, and the first limit buckle and the second limit buckle are respectively engaged with a first limit slot and a second limit slot on the battery pack.

13. The energy storage system according to claim 12, characterized in that: The first limiting buckle is detachably connected to the mounting bracket, and the second limiting buckle is fixedly arranged on the mounting bracket.

14. The energy storage system according to claim 13, characterized in that: The first limit buckle comprises a connecting portion and a clamping portion connected to each other; The connecting portion is detachably connected to the mounting bracket; The clamping portion is provided with a groove, and the first position-limiting buckle is clamped with the first position-limiting clamping slot through the groove.

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