Connecting structure for energy storage system box body, energy storage system and power utilization device

Abstract

The utility model discloses a connecting structure used for an energy storage system box body, an energy storage system and an electric device, the connecting structure used for the energy storage system box body comprises a first connecting assembly, the first connecting assembly is suitable for being electrically connected with a battery cell in the box body, and the first connecting assembly comprises a first clamping part; and the second connecting assembly is electrically connected with the first connecting assembly, the second connecting assembly comprises a second clamping part, and the second clamping part is in clamping fit with the first clamping part. Through clamping connection between the second clamping connection part and the first clamping connection part, connection between the second connecting assembly and the first connecting assembly can be firmer and tighter, and in the moving and carrying process of the energy storage system, the second connecting assembly is not prone to falling off from the first connecting assembly; the stability and reliability of electric connection between the second connecting assembly and the first connecting assembly are guaranteed, the energy storage system is prevented from being disassembled and assembled again, and therefore operation can be simpler, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric devices, in particular to a connection structure for an energy storage system box, an energy storage system and an electric device. Background Art

[0002] In the related art, the boxes in the energy storage system need to be electrically connected together through a connection structure, and the connection mechanism includes a first connection component and a second connection component. However, the first connection component and the second connection component are electrically connected directly by plugging, and during the movement and transportation of the energy storage system, the first connection component and the second connection component are prone to looseness, resulting in poor connection between the first connection component and the second connection component, so that the energy storage system needs to be disassembled and re-plugged, which is cumbersome and inconvenient to use. 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 proposes a connection structure for an energy storage system box, which can ensure the stability and reliability of the electrical connection between the second connection component and the first connection component, avoid the energy storage system from being disassembled and reassembled, thereby making the operation simpler and the use more convenient.

[0004] The utility model further proposes an energy storage system.

[0005] The utility model further proposes an electricity-consuming device.

[0006] According to the utility model, the connection structure for the energy storage system box includes: a first connection component, the first connection component is suitable for electrically connecting to the battery cell in the box, the first connection component includes: a first clamping portion; a second connection component, the second connection component is electrically connected to the first connection component, the second connection component includes: a second clamping portion, the second clamping portion is clamped and matched with the first clamping portion.

[0007] According to the connection structure for the energy storage system box of the utility model, the connection between the second connecting component and the first connecting component can be made more firm and tight through the clamping connection between the second clamping part and the first clamping part. During the movement and transportation of the energy storage system, the second connecting component is not easy to fall off from the first connecting component, thereby ensuring the stability and reliability of the electrical connection between the second connecting component and the first connecting component, avoiding the energy storage system from being disassembled and reassembled, thereby making the operation simpler and the use more convenient.

[0008] In some examples of the present invention, one of the first clamping portion and the second clamping portion is configured as a clamping strip having a clamping slot, and the other of the first clamping portion and the second clamping portion is configured as a clamping hook, which is clamped and matched with the clamping slot.

[0009] In some examples of the present invention, the first connecting component also includes: a first connecting member and a first insulating member, the first insulating member is sleeved outside the first connecting member, and the first clamping portion is arranged on the outer wall of the first insulating member; the second connecting component also includes: a second connecting member and a second insulating member, the second insulating member is sleeved outside the second connecting member, the second connecting member is electrically connected to the first connecting member, and the second clamping portion is arranged at one end of the second insulating member facing the first clamping portion.

[0010] In some examples of the present invention, the first connecting component also includes: a first limiting portion, which is arranged on the outer wall of the first insulating member; a second limiting portion is arranged at one end of the second insulating member facing the first connecting component, and the second limiting portion is limitedly matched with the first limiting portion.

[0011] In some examples of the present invention, one of the first limiting portion and the second limiting portion is configured as a limiting block, and the other of the first limiting portion and the second limiting portion is configured as a limiting groove, and the limiting groove cooperates with the limiting block in limiting manner.

[0012] In some examples of the present invention, the first connecting member is configured as a plug-in column, and one end of the second connecting member facing the first connecting member is configured as a deformable claw-shaped structure, and the plug-in column is plugged into the claw-shaped structure.

[0013] In some examples of the present invention, the first connecting component further includes: a third connecting member, wherein the third connecting member is electrically connected to an end of the first connecting member away from the second connecting member.

[0014] In some examples of the present invention, the first connecting component further includes: a third insulating member, the third insulating member is sleeved on the first insulating member, and a mounting hole is provided on the third insulating member.

[0015] In some examples of the present invention, the first connecting component further includes: a sealing member, a matching groove is provided on a side of the third insulating member away from the second connecting member, and the sealing member is provided in the matching groove.

[0016] In some examples of the present invention, a plurality of reinforcing ribs are arranged on one side of the third insulating member adjacent to the second connecting member, and the plurality of reinforcing ribs are arranged crosswise with each other.

[0017] In some examples of the present invention, the third insulating member and the second insulating member are an integrally formed structure.

[0018] In some examples of the present invention, the second connection component further includes: a fourth connection member, there are two second connection members, and two ends of the fourth connection member are electrically connected to the two second connection members respectively.

[0019] In some examples of the present invention, an outer wall of the fourth connecting member is provided with an insulating layer.

[0020] According to the utility model, the energy storage system comprises: a first box and a second box, wherein the first box and the second box are both provided with battery cells; the above-mentioned connection structure for the box of the energy storage system, wherein the number of the first connection components is two, the second connection component is electrically connected between the two first connection components, the two first connection components are respectively fixed to the first box and the second box, and the two first connection components are respectively electrically connected to the battery cells in the first box and the battery cells in the second box; or the number of the connection structures is two, wherein one of the first connection components of one of the connection structures is electrically connected to the battery cells in the first box, and one of the first connection components of the other connection structure is electrically connected to the battery cells in the second box, and another of the first connection components of one of the connection structures is electrically connected to another of the first connection components of the other connection structure.

[0021] The electric device according to the utility model comprises: the energy storage system mentioned above.

[0022] 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

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic structural diagram of a first connection component at a first angle;

[0025] Figure 2 is a schematic structural diagram of the first connecting component at a second angle;

[0026] Figure 3 is a cross-sectional view of a first connection assembly;

[0027] Figure 4 is a schematic structural diagram of a second connection component;

[0028] Figure 5is a cross-sectional view of a second connection assembly;

[0029] Figure 6 is a schematic diagram of a partial structure of a second connection component;

[0030] Figure 7 is a partial structural schematic diagram of an energy storage system according to an embodiment of the utility model;

[0031] Figure 8 It is a partial cross-sectional view of an energy storage system according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] 1. Connection structure;

[0034] 10. First connecting component; 11. First clamping portion; 110. Clamping slot; 12. First connecting member; 13. First insulating member; 14. First limiting portion; 15. Third connecting member; 150. Connecting hole; 16. Third insulating member; 160. Mounting hole; 161. Matching groove; 162. Reinforcing rib; 17. Sealing member; 20. Second connecting component; 21. Second clamping portion; 22. Second connecting member; 23. Second insulating member; 24. Second limiting portion; 25. Fourth connecting member; 250. First connecting portion; 251. Second connecting portion; 26. Insulating layer; 2. Energy storage system; 30. First box; 40. Second box. DETAILED DESCRIPTION

[0035] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0036] Reference below Figure 1-Figure 8 A connection structure 1 for a box of an energy storage system 2 according to an embodiment of the utility model is described. The connection structure 1 is applied to the energy storage system 2 and is electrically connected between two boxes.

[0037] like Figure 7 and Figure 8As shown, according to an embodiment of the utility model, the connection structure 1 for the box of the energy storage system 2 includes: a first connection component 10 and a second connection component 20. Generally, two first connection components 10 are provided, and the two first connection components 10 are respectively connected to the two boxes of the energy storage system 2, and one first connection component 10 is suitable for being electrically connected to the battery cell in one of the boxes, and the other first connection component 10 is suitable for being electrically connected to the battery cell in the other box. The second connection component 20 is electrically connected between the two first connection components 10, so that the two first connection components 10 can be electrically connected together, so that the battery cells in the two boxes can be electrically connected together to achieve series connection, thereby increasing the charge of the energy storage system 2 and making it more durable. Among them, the first connection component 10 can be a male component, and the second connection component 20 can be a female component.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the first connection component 10 includes: a first clamping portion 11, and the second connection component 20 includes: a second clamping portion 21, and the second clamping portion 21 is clamped and matched with the first clamping portion 11. Specifically, the two first connection components 10 are first electrically connected to the battery cells in the two boxes respectively, and then the second connection component 20 is electrically connected to the two first connection components 10, and after the second connection component 20 is electrically connected to the two first connection components 10, the second connection component 20 is firmly clamped together with the two first connection components 10 by clamping the second clamping portion 21 with the first clamping portion 11.

[0039] Therefore, through the clamping connection between the second clamping portion 21 and the first clamping portion 11, the connection between the second connecting component 20 and the first connecting component 10 can be made more firm and tight. During the movement and transportation of the energy storage system 2, the second connecting component 20 is not easy to fall off from the first connecting component 10, thereby ensuring the stability and reliability of the electrical connection between the second connecting component 20 and the first connecting component 10 and avoiding the energy storage system 2 from being disassembled and reassembled, thereby making the operation simpler and the use more convenient.

[0040] It should be noted that if Figure 1 and Figure 4 As shown, a plurality of first clamping parts 11 and a plurality of second clamping parts 21 can be provided, and the plurality of first clamping parts 11 are arranged at intervals, and the plurality of second clamping parts 21 are arranged at intervals, and the plurality of first clamping parts 11 and the plurality of second clamping parts 21 are matched one by one, so that the clamping points between the second connecting component 20 and the first connecting component 10 can be increased, and the clamping range can be larger, thereby further improving the connection strength between the second connecting component 20 and the first connecting component 10.

[0041] Among them, Figure 1 , Figure 4 and Figure 5 As shown, one of the first clamping part 11 and the second clamping part 21 is set as a clamping strip, and a clamping slot 110 is set on the clamping strip, and the other of the first clamping part 11 and the second clamping part 21 is set as a hook, and the hook is clamped and matched with the clamping slot 110. In other words, the first clamping part 11 and the second clamping part 21 can be a matching structure of a clamping strip and a hook, for example: the first clamping part 11 is a clamping strip, and the second clamping part 21 is a hook, and a clamping slot 110 is provided on the clamping strip. Through the clamping cooperation of the hook and the clamping slot 110, the second connecting component 20 is firmly and tightly connected with the first connecting component 10, so that the operation is simple and convenient, and the installation efficiency can be improved. In addition, the structures of the clamping strip, the clamping slot 110 and the clamping hook are simple, and the processing and setting are more convenient, which can reduce the cost to a certain extent.

[0042] Specifically, Figure 1-Figure 6 As shown, the first connecting component 10 also includes: a first connecting member 12 and a first insulating member 13, the first insulating member 13 is sleeved outside the first connecting member 12, and the first clamping portion 11 is arranged on the outer wall of the first insulating member 13, and the second connecting component 20 also includes: a second connecting member 22 and a second insulating member 23, the second insulating member 23 is sleeved outside the second connecting member 22, the second connecting member 22 is electrically connected to the first connecting member 12, and the second clamping portion 21 is arranged at one end of the second insulating member 23 facing the first clamping portion 11.

[0043] The first connecting member 12 is a part of the first connecting component 10 that performs electrical connection, and the first insulating member 13 is a part of the first connecting component 10 that performs insulation protection. The first insulating member 13 is sleeved outside the first connecting member 12, so that the first insulating member 13 can insulate the first connecting member 12, prevent the first connecting member 12 from leaking out, and prevent people from accidentally touching the first connecting member 12 during installation and fixing, thereby preventing electric shock. In addition, the first insulating member 13 can also prevent the external environment from affecting the first connecting member 12, thereby making the electrical connection of the first connecting member 12 more stable and reliable.

[0044] Similarly, the second connecting member 22 is the part of the second connecting component 20 that plays the role of electrical connection. The second connecting member 22 is electrically connected to the first connecting member 12, so that the electrical connection between the second connecting component 20 and the first connecting component 10 can be achieved. The second insulating member 23 is the part of the second connecting component 20 that plays the role of insulation protection. The second insulating member 23 is sleeved on the outside of the second connecting member 22. The second insulating member 23 can be sleeved on the second connecting member 22 by hot melting, so that the second insulating member 23 can insulate the second connecting member 22 to prevent the second connecting member 22 from leaking out, and to prevent people from accidentally touching the second connecting member 22 during installation and fixing, thereby preventing electric shock. In addition, the second insulating member 23 can also prevent the external environment from affecting the second connecting member 22, thereby making the electrical connection of the second connecting member 22 more stable and reliable.

[0045] The first clamping portion 11 is arranged on the outer wall of the first insulating member 13, and the second clamping portion 21 is arranged at one end of the second insulating member 23 facing the first clamping portion 11. In this way, the position setting between the first clamping portion 11 and the second clamping portion 21 is more reasonable, avoiding the first clamping portion 11 from interfering with the first connecting member 12, and the second clamping portion 21 from interfering with the second connecting member 22. Moreover, when the second connecting member 22 is electrically connected to the first connecting member 12, the clamping fit between the first clamping portion 11 and the second clamping portion 21 is facilitated.

[0046] Furthermore, if Figure 1-Figure 5 As shown, the first connection assembly 10 further includes: a first limiting portion 14, the first limiting portion 14 is arranged on the outer wall of the first insulating member 13, and a second limiting portion 24 is arranged at one end of the second insulating member 23 facing the first connection assembly 10, and the second limiting portion 24 is limitedly matched with the first limiting portion 14. The first limiting portion 14 is a portion that functions as a limiting portion in the first connection assembly 10, and the second limiting portion 24 is a portion that functions as a limiting portion in the second connection assembly 20, and the second limiting portion 24 is limitedly matched with the first limiting portion 14, so that after the second connection member 22 is electrically connected to the first connection member 12, the second connection assembly 20 can be prevented from rotating circumferentially relative to the first connection assembly 10, thereby improving the stability and reliability of the connection between the second connection assembly 20 and the first connection assembly 10.

[0047] The first limiting portion 14 is arranged on the outer wall of the first insulating member 13, and the second limiting portion 24 is located at one end of the second insulating member 23 facing the first connecting component 10. Similarly, the position setting between the first limiting portion 14 and the second limiting portion 24 is more reasonable, avoiding the first limiting portion 14 from interfering with the first connecting member 12, and the second limiting portion 24 from interfering with the second connecting member 22. Moreover, when the second connecting member 22 is electrically connected to the first connecting member 12, the first limiting portion 14 and the second limiting portion are convenient for the snap-fitting between them.

[0048] Among them, Figure 1 and Figure 4 As shown, one of the first limiting portion 14 and the second limiting portion 24 is configured as a limiting block, and the other of the first limiting portion 14 and the second limiting portion 24 is configured as a limiting groove, and the limiting groove cooperates with the limiting block. That is to say, the first limiting portion 14 and the second limiting portion 24 can be a matching structure of a limiting block and a limiting groove, for example: the first limiting portion 14 is a limiting block, and the second clamping portion 21 is a limiting groove. Through the limiting cooperation of the limiting block and the limiting groove, the connection between the second connecting component 20 and the first connecting component 10 can be made more stable and reliable. When the second connecting component 20 is connected to the first connecting component 10, the limiting block can also be aligned with the limiting groove for installation and connection, which plays a guiding role, making the installation and connection between the second connecting component 20 and the first connecting component 10 simpler and more convenient, which can improve the installation efficiency. Moreover, the positions of the first limiting portions 14 of different first connecting components 10 are different, which can play a fool-proof role and avoid the second connecting component 20 from being connected to the first connecting component 10. In addition, the structure of the limiting block and the limiting groove is simple, and the processing and setting are more convenient, which can reduce the cost to a certain extent.

[0049] In addition, if Figure 1 , Figure 4 and Figure 6 As shown, the first connector 12 is configured as a plug-in column, and the end of the second connector 22 facing the first connector 12 is configured as a deformable claw-shaped structure, and the plug-in column is plugged into the claw-shaped structure. In other words, the structure of the first connector 12 is a plug-in column, for example, a cylindrical plug-in column, and the structure of the end of the second connector 22 facing the first connector 12 is a claw-shaped structure. Before the first connector 12 is connected to the second connector 22, the claw-shaped structure remains in its original state. When the first connector 12 is connected to the second connector 22, the plug-in column can be directly plugged into the claw-shaped structure. At this time, the claw-shaped structure will gradually deform, and the plug-in column is clamped in the claw-shaped structure, so that there is no need to pre-crimp the cable. In this way, the connection between the first connector 12 and the second connector 22 is simple and convenient, which can improve the assembly efficiency, and the claw-shaped structure can clamp the plug-in column, so that the connection between the first connector 12 and the second connector 22 is more secure, ensuring the stability and reliability of the electrical connection between the first connector 12 and the second connector 22.

[0050] Of course, if Figure 1-Figure 3As shown, the first connection assembly 10 also includes: a third connection member 15, the third connection member 15 is electrically connected to the end of the first connection member 12 away from the second connection member 22, and a connection hole 150 is provided on the third connection member 15. The third connection member 15 is mainly used to electrically connect to the battery cell in the box of the energy storage system 2, and the shape can be a horizontal rectangle. The third connection member 15 is electrically connected to the end of the first connection member 12 away from the second connection member 22. It can be understood that one end of the first connection member 12 needs to be electrically connected to the second connection member 22, then the third connection member 15 can be electrically connected to the other end of the first connection member 12, so that it is convenient for the third connection member 15 to extend into the box of the energy storage system 2, and the third connection member 15 is connected to the first connection member 12, so that a connection path can be formed between the first connection member 12, the second connection member 22 and the third connection member 15, so as to realize the connection between the two boxes of the energy storage system 2. The third connecting member 15 is provided with a connecting hole 150 , so that the positive and negative terminals of the battery cells inside the box can be connected to the connecting hole 150 by screws, thereby being electrically connected to the third connecting member 15 .

[0051] According to an optional embodiment of the present utility model, Figure 1-Figure 3 As shown, the first connection assembly 10 also includes: a third insulating member 16, the third insulating member 16 is sleeved on the first insulating member 13, and a mounting hole 160 is provided on the third insulating member 16. First, the third insulating member 16 can play a role in installation and fixing. The mounting holes 160 can be provided at the four corners of the third insulating member 16, and then the mounting holes 160 are used to fix the third connecting member 10 with the box screws of the energy storage system 2, so that the first connecting assembly 10 can be firmly connected to the box of the energy storage system 2. In addition, the third insulating member 16 can play an insulating role, insulating the box of the energy storage system 2 from the external structure to avoid accidental electric shock. The third insulating member 16 is sleeved on the first insulating member 13, so that a part of the first insulating member 13 is located outside the box of the energy storage system 2, mainly to facilitate the electrical connection between the first connecting member 12 and the second connecting member 22, and the other part is located inside the box of the energy storage system 2, which facilitates the sealing of the box of the energy storage system 2 to a certain extent.

[0052] Secondly, if Figure 2 and Figure 3As shown, the first connecting component 10 also includes: a sealing member 17, a matching groove 161 is provided on the side of the third insulating member 16 away from the second connecting member 22, and the sealing member 17 is arranged in the matching groove 161. The sealing member 17 can mainly play a sealing role. The matching groove 161 is provided on the side of the third insulating member 16 away from the second connecting member 22, and the matching groove 161 can play a limiting role, so that the sealing member 17 can be stably and reliably arranged in the matching groove 161, and it is not easy to fall off. Specifically, when the third insulating member 16 and the box body of the energy storage system 2 are installed, the sealing member 17 between the third insulating member 16 and the box body of the energy storage system 2 is compressed, thereby playing a sealing role to prevent gas leakage inside the box body of the energy storage system 2. The sealing member 17 can be a rubber sealing ring, and the rubber sealing ring can be arranged in the matching groove 161 by bonding.

[0053] In addition, if Figure 1 As shown, a plurality of reinforcing ribs 162 are arranged on one side of the third insulating member 16 adjacent to the second connecting member 22, and the plurality of reinforcing ribs 162 are arranged crosswise. The reinforcing ribs 162 can play an effect of strengthening the structural strength. The reinforcing ribs 162 are arranged on the side of the third insulating member 16 adjacent to the second connecting member 22, so that the reinforcing ribs 162 can be arranged on the side of the third insulating member 16 away from the second connecting member 22, thereby avoiding the formation of a gap between the third insulating member 16 and the box body of the energy storage system 2, which affects the sealing effect. Moreover, the reinforcing ribs 162 can strengthen the structural strength of the third insulating member 16, and the third insulating member 16 is not easily damaged when being installed and fixed to the box body of the energy storage system 2. In addition, there are a plurality of reinforcing ribs 162, and the plurality of reinforcing ribs 162 are arranged crosswise, so that the setting range of the reinforcing ribs 162 can be larger, and the structural strength between the plurality of reinforcing ribs 162 can be greater, thereby further improving the structural strength of the third insulating member 16.

[0054] It should be noted that if Figure 1 As shown, the third insulating member 16 and the second insulating member 23 are an integrally formed structure. That is to say, the third insulating member 16 and the second insulating member 23 are an integral structural member, which facilitates the installation of the third insulating member 16 and the second insulating member 23. The third insulating member 16 and the second insulating member 23 do not need to be connected and fixed, which makes installation simpler and more convenient. In addition, only one template is needed during processing, which can reduce the production cost to a certain extent.

[0055] Alternatively, if Figure 5 and Figure 6As shown, the second connection component 20 also includes: a fourth connection member 25, there are two second connection members 22, and the two ends of the fourth connection member 25 are electrically connected to the two second connection members 22 respectively. That is to say, in addition to the second connection member 22, the second connection component 20 also includes a fourth connection member 25, there are two second connection members 22, the two second connection members 22 are electrically connected to the first connection members 12 of the first connection components 10 on the two boxes, and then the two ends of the fourth connection member 25 are electrically connected to the two second connection members 22 respectively, and the fourth connection member 25 and the second connection member 22 can be welded, so that the two second connection members 22 will be connected and conductive, so that the battery cells in the two boxes can be connected and conductive, and the series connection is realized, thereby increasing the charge of the energy storage system 2. The fourth connection member 25 can be a hard copper busbar, and the fourth connection member 25 is the main body connected between the second connection members 22, and can be customized according to the input and output current of the box of the energy storage system 2, and the relative position of the first connection assembly 10 on the two boxes.

[0056] Specifically, Figure 5 and Figure 6 As shown, the fourth connector 25 includes: a first connector 250 and two second connectors 251. In the first direction, the two second connectors 251 are connected to the two second connectors 22 one by one. In the second direction, the first connector 250 is electrically connected between the two second connectors 251. The first direction is perpendicular to the second direction. That is to say, when the fourth connector 25 is electrically connected to the second connector 22, the second connector 251 and the second connector 22 are in a straight line along the first direction, while the first connector 250 and the second connector 251 are at a right angle. This can avoid the need to bend the fourth connector 25 when the second connector 22 is electrically connected to the first connector 12 when the fourth connector 25 is a straight cable, which is not convenient for the plug-in fit between the second connector 22 and the first connector 12. It can also avoid the problem of large stress at the bending corner after the fourth connector 25 is bent, which is easy to be damaged, thereby making the structure of the fourth connector 25 more stable and reliable. Of course, such a setting can also reduce the space occupied by the bending part to a certain extent.

[0057] In addition, Figure 4 and Figure 5As shown, the outer wall of the fourth connection member 25 is provided with an insulating layer 26. Specifically, the insulating layer 26 refers to the insulating portion of the second connection component 20 obtained by the dipping method to cover the outer wall of the fourth connection member 25, so that the insulating layer 26 can insulate the fourth connection member 25, prevent the fourth connection member 25 from leaking out, and prevent personnel from accidentally touching the fourth connection member 25 during installation and fixing, thereby preventing electric shock. In addition, the insulating layer 26 can also prevent the external environment from affecting the fourth connection member 25, so that the electrical connection of the fourth connection member 25 can be more stable and reliable.

[0058] like Figure 7 and Figure 8 As shown, the energy storage system 2 according to the embodiment of the utility model includes: a first box body 30, a second box body 40 and the connection structure 1 for the box body of the energy storage system 2 described in the above embodiment, the first box body 30 and the second box body 40 are both provided with battery cells, there are two first connection components 10, the two first connection components 10 are respectively fixed on the first box body 30 and the second box body 40, and the two first connection components 10 are respectively electrically connected to the battery cells in the first box body 30 and the battery cells in the second box body 40.

[0059] Specifically, two first connection components 10 are generally provided, and the second connection component 20 is electrically connected between the two first connection components 10. The two first connection components 10 are respectively fixed to the first box 30 and the second box 40, and the first connection component 10 connected to the first box 30 is suitable for being electrically connected to the battery cell in the first box 30, and the first connection component 10 connected to the second box 40 is suitable for being electrically connected to the battery cell in the second box 40. The second connection component 20 is electrically connected between the two first connection components 10, so that the two first connection components 10 can be electrically connected together, so that the battery cells in the two boxes can be electrically connected together, and connected in series, so that the amount of charge of the energy storage system 2 can be increased, and the use is more durable.

[0060] Alternatively, there are two connection structures 1, wherein a first connection component 10 of one connection structure 1 is electrically connected to the battery cell in the first box 30, and a first connection component 10 of another connection structure 1 is electrically connected to the battery cell in the second box 40, and another first connection component 10 of one connection structure 1 is electrically connected to another first connection component 10 of another connection structure 1. In other words, two connection structures 1 are provided, wherein one end of one connection structure 1 is electrically connected to the battery cell in the first box 30, and one end of the other connection structure 1 is electrically connected to the battery cell in the second box 40, and then the other ends of the two connection structures 1 are connected together, so that the battery cells in the two boxes can be connected in parallel through the two connection structures 1, which can also increase the amount of charge of the energy storage system 2 and make it more durable.

[0061] The electrical device according to the embodiment of the utility model includes: the energy storage system 2 described in the above embodiment.

[0062] 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.

[0063] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] 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 connection structure (1) for a box of an energy storage system (2), characterized in that: include: A first connecting component (10), the first connecting component (10) being suitable for being electrically connected to a battery cell in a box, the first connecting component (10) comprising: a first clamping portion (11); A second connecting component (20), the second connecting component (20) is electrically connected to the first connecting component (10), and the second connecting component (20) comprises: a second clamping portion (21), the second clamping portion (21) is clamped and matched with the first clamping portion (11).

2. The connection structure (1) for the box of the energy storage system (2) according to claim 1, characterized in that: One of the first clamping portion (11) and the second clamping portion (21) is configured as a clamping strip, on which a clamping slot (110) is provided, and the other of the first clamping portion (11) and the second clamping portion (21) is configured as a clamping hook, which is clamped and matched with the clamping slot (110).

3. The connection structure (1) for the box of the energy storage system (2) according to claim 1, characterized in that: The first connecting component (10) further comprises: a first connecting member (12) and a first insulating member (13), wherein the first insulating member (13) is sleeved outside the first connecting member (12), and the first clamping portion (11) is arranged on the outer wall of the first insulating member (13); The second connecting component (20) further comprises: a second connecting member (22) and a second insulating member (23), wherein the second insulating member (23) is sleeved outside the second connecting member (22), the second connecting member (22) is electrically connected to the first connecting member (12), and the second clamping portion (21) is arranged at one end of the second insulating member (23) facing the first clamping portion (11).

4. The connection structure (1) for the box of the energy storage system (2) according to claim 3, characterized in that: The first connection assembly (10) further comprises: a first limiting portion (14), wherein the first limiting portion (14) is arranged on the outer wall of the first insulating member (13); A second limiting portion (24) is provided at one end of the second insulating member (23) facing the first connecting assembly (10), and the second limiting portion (24) is in limiting cooperation with the first limiting portion (14).

5. The connection structure (1) for the box of the energy storage system (2) according to claim 4, characterized in that: One of the first limiting portion (14) and the second limiting portion (24) is configured as a limiting block, and the other of the first limiting portion (14) and the second limiting portion (24) is configured as a limiting groove, and the limiting groove cooperates with the limiting block in limiting manner.

6. The connection structure (1) for the box of the energy storage system (2) according to claim 3, characterized in that: The first connecting member (12) is configured as a plug-in column, and one end of the second connecting member (22) facing the first connecting member (12) is configured as a deformable claw-shaped structure, and the plug-in column is plugged into the claw-shaped structure.

7. The connection structure (1) for the box of the energy storage system (2) according to claim 3, characterized in that: The first connecting component (10) further comprises: a third connecting member (15), wherein the third connecting member (15) is electrically connected to an end of the first connecting member (12) away from the second connecting member (22).

8. The connection structure (1) for the box of the energy storage system (2) according to claim 3, characterized in that: The first connecting component (10) further comprises: a third insulating member (16), the third insulating member (16) being sleeved on the first insulating member (13), and a mounting hole (160) being provided on the third insulating member (16).

9. The connection structure (1) for the box of the energy storage system (2) according to claim 8, characterized in that: The first connecting component (10) further comprises: a sealing member (17); a matching groove (161) is provided on a side of the third insulating member (16) away from the second connecting member (22); and the sealing member (17) is arranged in the matching groove (161).

10. The connection structure (1) for the box of the energy storage system (2) according to claim 8, characterized in that: A plurality of reinforcing ribs (162) are arranged on one side of the third insulating member (16) adjacent to the second connecting member (22), and the plurality of reinforcing ribs (162) are arranged in a cross-like manner.

11. The connection structure (1) for a box of an energy storage system (2) according to claim 8, characterized in that: The third insulating member (16) and the second insulating member (23) are an integrally formed structure.

12. The connection structure (1) for a box of an energy storage system (2) according to claim 3, characterized in that: The second connection assembly (20) further comprises: a fourth connection member (25), the second connection members (22) are two, and two ends of the fourth connection member (25) are respectively electrically connected to the two second connection members (22).

13. The connection structure (1) for a box of an energy storage system (2) according to claim 12, characterized in that: An outer wall of the fourth connecting member (25) is provided with an insulating layer (26).

14. An energy storage system (2), characterized in that: include: A first box (30) and a second box (40), wherein the first box (30) and the second box (40) are both provided with battery cells; The connection structure (1) for a box of an energy storage system (2) according to any one of claims 1 to 13, wherein there are two first connection components (10), the second connection component (20) is electrically connected between the two first connection components (10), the two first connection components (10) are respectively fixed to the first box (30) and the second box (40), and the two first connection components (10) are respectively electrically connected to the battery cells in the first box (30) and the battery cells in the second box (40); or There are two connection structures (1), wherein one of the first connection components (10) of one of the connection structures (1) is electrically connected to a battery cell in the first box (30), and one of the first connection components (10) of another of the connection structures (1) is electrically connected to a battery cell in the second box (40), and another of the first connection components (10) of one of the connection structures (1) is electrically connected to another of the first connection components (10) of another of the connection structures (1).

15. An electrical device, characterized in that: include: The energy storage system (2) as claimed in claim 14.

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