Support assembly and energy storage device

Abstract

The utility model provides a supporting assembly and an energy storage device, and relates to the technical field of energy storage. The supporting assembly is used for supporting a battery module, and comprises a box body, and the box body comprises a bottom wall and a peripheral side wall; the supporting beam is arranged on the bottom wall, and the supporting beam is used for supporting the battery module; and the reinforcing component is connected with the supporting beam and the peripheral side wall. By arranging the reinforcing component, the supporting beam and the box body are integrated, so that the mechanical strength of the supporting beam and the box body is improved to cope with mechanical accidents in the transportation and use process, the probability that the battery module is damaged due to impact is reduced, and normal use of the battery module is ensured. Therefore, the technical problems of poor reliability and poor safety in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and particularly relates to a support assembly and an energy storage device. Background Art

[0002] In a household energy storage system, a battery module is a core component, and the battery module realizes charging and discharging cycles under the coordination of other intelligent hardware and software.

[0003] In the related art, the battery module is fixed on the bottom plate of the battery box through fasteners to provide protection for the battery module through the battery box.

[0004] However, when mechanical accidents such as bumps and knocks occur to the battery box, relative movement will occur between the battery module and the battery box, causing the battery module to be impacted, resulting in potential hazards such as failure, fire, and even explosion of the battery module, so that the product has technical problems of poor reliability and poor safety. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, a first aspect of the utility model provides a support assembly.

[0007] A second aspect of the utility model provides an energy storage device.

[0008] In view of this, a first aspect of the utility model provides a support assembly for supporting a battery module. The support assembly includes: a box body, the box body includes a bottom wall and a peripheral side wall; a support beam, the support beam is arranged on the bottom wall, and the support beam is used for supporting the battery module; a strengthening member, the strengthening member connects the support beam and the peripheral side wall.

[0009] In this technical solution, a support assembly is defined. The support assembly includes a box body and a support beam, and the support beam can provide positioning and support for the battery module in the energy storage device.

[0010] The battery module is used for storing electric energy. The battery module is arranged in the box body, and the box body can provide shielding protection outside the battery module to prevent the battery module from being damaged by external impacts and can reduce the probability of electric leakage.

[0011] Among them, the box body includes a peripheral side wall and a bottom wall. The battery module is located above the bottom wall, and the peripheral side wall surrounds the battery module. The support beam is arranged on the bottom wall, and the battery module is fixed on the support beam. The support beam can provide positioning and support for the battery module, so that the battery module can be fixed at a predetermined installation position. Moreover, the support beam connected to the bottom wall can also absorb part of the impact in place of the bottom wall when the bottom wall is impacted, thereby enhancing the structural strength of the bottom wall and reducing the probability of deformation and damage of the bottom wall.

[0012] On this basis, the support assembly is further provided with a strengthening member, and the strengthening member is connected to the support beam and the peripheral side wall of the box body at the same time, so that the side wall of the box body, the support beam and the bottom wall of the box body are combined into one through connection. When the side wall or the bottom wall of the box body is impacted, the impact force can be transmitted between the side wall, the support beam and the bottom wall, that is, the overall structure composed of the side wall of the box body, the support beam and the bottom wall of the box body resists the impact force together, thereby reducing the probability of deformation of the overall structure and reducing the probability of collision between the battery module and the box body.

[0013] It can be seen from this that by providing the strengthening member in this application, the support beam and the box body are integrated, thereby improving the mechanical strength of the support beam and the box body to cope with mechanical accidents during transportation and use, reducing the probability of damage to the battery module due to impact, and ensuring the normal use of the battery module. Furthermore, the technical problems of poor reliability and poor safety in the related art are solved.

[0014] In addition, the above-mentioned support assembly provided by the present utility model may further have the following additional technical features:

[0015] In some technical solutions of the present utility model, optionally, the strengthening member includes: a first strengthening beam, the end face of the first strengthening beam is connected to the support beam, and the side face of the first strengthening beam is connected to the peripheral side wall.

[0016] In this technical solution, the strengthening member includes a first strengthening beam. The first strengthening beam is strip-shaped. One end face of the first strengthening beam is connected to the support beam, specifically, it can be welded to the top of the support beam, and one side face of the first strengthening beam is connected to the peripheral side wall adjacent to the support beam, and it can also be welded to the peripheral side wall.

[0017] When the peripheral side wall and the bottom wall of the box body connected by the first strengthening beam are impacted in a mechanical accident, the impact force can be transmitted between the peripheral side wall, the first strengthening beam, the support beam and the bottom wall, so as to jointly resist the impact force, reducing the probability of deformation of any one of the peripheral side wall, the first strengthening beam, the support beam and the bottom wall due to impact, thereby improving the mechanical strength of the box body and the support beam, and effectively protecting the battery module inside the box body and above the support beam. Moreover, the first strengthening beam has strong bending and torsion resistance. When the peripheral side wall is directly impacted, the first strengthening beam can provide support for the peripheral side wall, reducing the probability of deformation or even fracture of the peripheral side wall under direct impact, thereby improving the impact resistance of the peripheral side wall and the mechanical strength of the box body, and further achieving the technical effects of improving structural stability, safety and reliability of the battery module.

[0018] In some technical solutions of the present utility model, optionally, the first strengthening beam extends in the height direction of the box body; the number of the first strengthening beams is multiple, and the multiple first strengthening beams are spaced apart along the length direction of the support beam.

[0019] In this technical solution, the first reinforcing beam extends in the height direction of the box body, that is, the length direction of the first reinforcing beam coincides with the height direction of the box body, while the support beam is horizontally arranged on the bottom plate. The first reinforcing beam extending in the height direction and the support beam are vertically combined into a T-shaped structure. The T-shaped structure has strong structural stability, can resist strong impact force, and can reduce the possibility of the support beam and the first reinforcing beam being misaligned and deformed, thereby achieving the technical effects of improving mechanical strength and structural stability.

[0020] On this basis, the number of the first reinforcing beams is multiple, and the multiple first reinforcing beams are spaced apart along the length direction of the support beam above the support beam. By arranging multiple first reinforcing beams at intervals above the support beam, the impact force can be shared by the multiple first reinforcing beams, thereby reducing the probability of the support beam and the first reinforcing beam being bent or even broken, further improving the mechanical strength and the structural stability.

[0021] In some technical solutions of the present utility model, optionally, the reinforcing component further includes: a fixing component, which is arranged on the support beam and is used for connecting the battery module.

[0022] In this technical solution, the reinforcing component further includes a fixing component, which is arranged above the support beam and is used for connecting the battery module to fix the battery module above the support beam. Specifically, the fixing component includes a plurality of mounting posts, and the plurality of mounting posts are spaced apart on the support beam. The battery module is fixed above the mounting posts, and the mounting posts can provide positioning and support for the battery module.

[0023] By setting the fixing component, the battery module can be lifted, so that the support beam is spaced from the battery module, thereby leaving a deformation margin of the support beam between the battery module and the support beam. When subjected to an external impact, even if the impact force is transmitted to the support beam to cause the support beam to have a reversible deformation, the reserved space can ensure that the support beam will not squeeze or collide with the battery module, thereby achieving the technical effects of improving the positioning stability and reliability of the battery module and reducing the failure rate of the battery module.

[0024] In some technical solutions of the present utility model, optionally, the reinforcing component further includes: a reinforcing sheet metal, which connects the peripheral side wall and the fixing component and is spaced from the support beam; a reinforcing rib, which is arranged on the reinforcing sheet metal.

[0025] In this technical solution, the reinforcing component also includes a reinforcing sheet metal, which is horizontally arranged above the support beam, one side of the reinforcing sheet metal is connected to the fixing component, and the other side of the reinforcing sheet metal is connected to the surrounding side wall adjacent to the support beam. When the surrounding side wall is subjected to external impact, the support beam can provide support to the surrounding side wall through the fixing component and the reinforcing sheet metal to reduce the probability of irreversible deformation of the surrounding side wall. In addition, there is space between the reinforcing sheet metal and the support beam, which can be used to arrange the wiring harness assembly connecting the battery module, thereby reducing the difficulty of wiring inside the support component and optimizing the internal space layout of the support component.

[0026] On this basis, reinforcing ribs are horizontally provided on the side of the reinforced sheet metal facing away from the supporting beam. The reinforcing ribs have strong anti-bending and torsion capabilities. By setting up the reinforcing ribs, part of the impact force can be shared by the reinforced sheet metal to reduce the probability of irreversible deformation of extremely strong sheet metal, thereby achieving the technical effect of improving mechanical strength and improving structural stability.

[0027] In some technical solutions of the utility model, optionally, the peripheral side wall includes a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall and the second side wall are opposite, and the third side wall and the fourth side wall are opposite; the support beam connects the first side wall and the second side wall, the reinforcement component connects the support beam and the third side wall, and / or the reinforcement component connects the support beam and the fourth side wall.

[0028] In this technical solution, the box body is square, and the peripheral side walls of the box body include a first side wall and a second side wall opposite to each other, and the first side wall and the second side wall correspond to the two long sides of the square box body. The peripheral side walls of the box body also include a third side wall and a fourth side wall opposite to each other, and the third side wall and the fourth side wall correspond to the two wide sides of the square box body. The first side wall, the fourth side wall, the second side wall and the third side wall are connected end to end to form a peripheral side wall surrounding the battery module.

[0029] On this basis, the support beam is horizontally arranged between the first side wall and the second side wall, that is, the length direction of the support beam is consistent with the width direction of the box body. By setting the support beam between the first side wall and the second side wall, the length of the support beam can be reduced while effectively supporting the battery module, which on the one hand reduces the production cost, and on the other hand provides convenient conditions for the lightweight design of the support component.

[0030] Specifically, there are two support beams, one of which is arranged close to the third side wall, and two first reinforcing beams are arranged on the support beam arranged close to the third side wall, and the two first reinforcing beams connect the third side wall and the first support beam. Another support beam is close to the fourth side wall, and the support beam arranged close to the fourth side wall is connected to the reinforcing sheet metal through a fixing component, and the reinforcing sheet metal is connected to the fourth side wall, and reinforcing ribs are arranged above the reinforcing sheet metal.

[0031] By jointly supporting the battery module with two support beams, bilateral positioning of the battery module can be achieved, thereby improving the positioning stability of the battery module and reducing the possibility of misalignment of the battery module. On this basis, by respectively arranging a strengthening component on the two support beams, the third side wall, the strengthening beam, the bottom wall and the fourth side wall can be connected into a whole, so as to resist external impacts through this overall structure, and further achieve the technical effects of improving mechanical strength and reducing the failure rate of the battery module.

[0032] In some technical solutions of the present utility model, optionally, the support assembly further includes: a second strengthening beam, and the second strengthening beam is arranged on the first side wall and / or the second side wall.

[0033] In this technical solution, at least one of the first side wall and the second side wall is provided with a second strengthening beam, and the second strengthening beam can provide support inside the first side wall and the second side wall to reduce the probability of irreversible deformation of the first side wall and the second side wall under external impacts, thereby improving the mechanical strength of the box body and effectively protecting the battery module inside the box body.

[0034] Specifically, the second strengthening beam extends along the height direction of the box body, and the number of the second strengthening beams is multiple, and the multiple second strengthening beams are spaced apart along the length direction of the box body, so as to further enhance the mechanical strength of the box body.

[0035] The second aspect of the present utility model provides an energy storage device, and the energy storage device includes: a support assembly in any of the above technical solutions, the box body includes an opening, and the energy storage device further includes: a battery module, the battery module is arranged on the support beam and is located inside the box body; a cover body, the cover body is flange-connected to the box body, and the cover body covers the opening; a sealing ring, the sealing ring is arranged between the cover body and the box body, and the sealing ring is used to seal the gap between the cover body and the box body.

[0036] In this technical solution, an energy storage device provided with the support assembly in any of the above technical solutions is defined. Therefore, this energy storage device has the advantages of the support assembly in any of the above technical solutions and can achieve the technical effects that the support assembly in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0037] The battery module is used to store electric energy. The battery module is arranged inside the box body, and an opening is provided at the top of the box body. The battery module can be loaded into the inside of the box body through the opening. During subsequent use, the user can also maintain and repair the battery module inside the box body at the opening.

[0038] On this basis, the energy storage device further includes a cover body, which is covered above the opening, and the cover body and the box body are flange-connected. On the one hand, flange connection has the advantage of being detachable, which can provide convenient conditions for disassembling and assembling the battery module and reduce the difficulty of replacing and maintaining the battery module. On the other hand, flange connection has strong sealing performance, which can reduce the probability of sealing dead angles between the box body and the cover body.

[0039] Wherein, a sealing ring is clamped between the cover body and the box body, and the sealing ring surrounds the periphery of the opening. The sealing ring can fill the gap between the cover body and the box body, thereby sealing the gap between the cover body and the box body to prevent pollutants such as dust and liquid from entering the interior of the box body, reducing the probability of the battery module failing and being damaged due to pollutants, and further achieving the technical effects of improving the sealing performance of the energy storage device, reducing the failure rate of the battery module, and extending the service life of the battery module.

[0040] In some technical solutions of the present utility model, optionally, the box body includes a top surface, the opening is provided on the top surface, and the sealing ring is press-fitted between the cover body and the top surface; the sealing ring is foam-molded on the cover body.

[0041] In this technical solution, one side of the box body facing the cover body includes a top surface, the opening is opened in the central area of the top surface, and the top surface is flange-connected to the cover body.

[0042] On this basis, the sealing ring is foam-molded on the lower surface of the cover body, and the foam-molded sealing ring is arranged opposite to the top surface. After foaming is completed, the cover body can be covered above the top surface, and the sealing ring is clamped between the end surface under flange connection and the cover body, so that the foam-molded sealing ring deforms under extrusion and fills the gap between the cover body and the top surface through deformation, preventing pollutants from entering the inner side of the box body between the cover body and the top surface, and further achieving the technical effects of improving the sealing reliability of the energy storage device and reducing the failure rate of the battery module. At the same time, forming the sealing ring by the foaming process can reduce the process complexity of the energy storage device and is beneficial to reducing the production cost of the energy storage device.

[0043] In some technical solutions of the present utility model, optionally, the cover body includes through holes, and the energy storage device further includes: nuts, which are arranged on the top surface, the number of nuts is multiple, and the multiple nuts are distributed around the opening, and the through holes are opposite to the nuts; a connecting component, the connecting component passes through the through holes, and the connecting component is connected to the nuts, and the connecting component is used to press-fit the cover body on the nuts.

[0044] In this technical solution, through holes are provided on the cover body, the number of through holes is multiple, and the multiple through holes are arranged in an array along a loop on the cover body. Correspondingly, nuts are provided on the top surface of the box body, and the number of nuts is the same as the number of through holes. During the assembly process, the multiple through holes and the multiple nuts correspond one by one.

[0045] The energy storage device further includes a connecting component. The connecting component passes through the cover body through a through hole and is screwed to a nut below the through hole. By connecting multiple groups of through holes and nuts through multiple connecting components respectively, the flange connection between the cover body and the box body can be completed.

[0046] Specifically, during the assembly process, the cover body is initially positioned on the box body first, so that the sealing ring abuts against the top surface, and the through hole is aligned with the nut. Then, the cover body is pressed downward by inserting the connecting component. During this process, the sealing ring is compressed and deformed until the lower surface of the cover body is assembled with the upper surface of the nut. At this time, the sealing ring deformed under compression fills the gap between the cover body and the top surface to achieve effective sealing.

[0047] Specifically, in this application, by cooperating with a sealing ring on the basis of flange connection, the waterproof level of the energy storage device can be improved to IP67.

[0048] Specifically, the connecting component includes a screw and a bolt.

[0049] In some technical solutions of the present utility model, optionally, in the height direction of the box body, the size range of the nut is: greater than or equal to 1 mm and less than or equal to 3 mm.

[0050] In this technical solution, in the height direction of the box body, the size of the nut is the height of the nut. The height of the nut corresponds to the distance that the nut protrudes from the top surface. After assembly, the top surface of the nut contacts the bottom surface of the cover body, and this distance corresponds to the height available for accommodating the sealing ring.

[0051] On this basis, the height of the nut needs to be greater than or equal to 1 mm and less than or equal to 3 mm.

[0052] By defining that the height of the nut is greater than or equal to 1 mm, enough layout space can be reserved for the sealing ring to ensure that the cover body can be smoothly pressed above the nut, reducing the sealing assembly difficulty of the energy storage device.

[0053] By defining that the height of the nut is less than or equal to 3 mm, the gap between the cover body and the top surface can be reduced on the basis of meeting the space layout requirements of the sealing ring, thereby reducing the sealing difficulty of the sealing ring for this gap and improving the sealing effect between the cover body and the box body.

[0054] Specifically, the height of the nut is 2 mm, and the thickness of the sealing ring is greater than the height of the nut to ensure that the sealing ring can be compressed.

[0055] In some technical solutions of the utility model, optionally, the energy storage device also includes: a positioning pin, which is arranged on the side of the cover body facing the opening, and the cover body includes a first posture and at least one second posture; when the cover body is in the first posture, the positioning pin avoids the battery module, and the cover body can be buckled on the box body; when the cover body is in the second posture, the positioning pin interferes with the battery module, and the cover body cannot be buckled on the box body.

[0056] In this technical solution, a positioning pin is provided on the side of the cover body facing the box body, and the positioning pin avoids the top surface of the box body and faces the opening of the box body. During the assembly process, the internal structure of the box body must be assembled first, and then the cover body is buckled. During the buckling process of the cover body, the positioning pin extends into the interior of the box body.

[0057] The positioning pin is eccentrically arranged on the cover body. When the cover body is initially positioned above the box body, the cover body includes a first posture and at least one second posture.

[0058] For example, when the horizontal cross section of the box body is rectangular, the cover body placed on the box body includes two possible positions, one positive and one negative, the correct placement posture is the first posture, and the reverse placement posture corresponds to the second posture. Or when the horizontal cross section of the box body is square, the cover body placed on the box body includes one first posture and three second postures.

[0059] On this basis, when the cover body originally positioned above the box body is in the correct first posture, the positioning pin can smoothly reach the internal space of the box body, and the positioning pin will not interfere with the internal structure of the box body, and the cover body can be smoothly pressed onto the top surface through the connecting parts.

[0060] When the cover is initially positioned on the box and is in the wrong second posture, the positioning pin will be blocked by the battery module in the box, causing the positioning pin to be unable to continue to move downward. At this time, the cover is lifted up and the connecting nut of the connecting component cannot be operated, thereby promptly reminding the worker or user that the pre-assembly posture of the cover is wrong.

[0061] It can be seen that by setting the positioning pins, a fool-proof design of the cover can be achieved to avoid misplaced installation of the cover, thereby achieving the technical effect of improving the assembly accuracy of the energy storage device and improving the yield rate of the energy storage device.

[0062] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] 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:

[0064] Figure 1 An exploded view of an energy storage device according to an embodiment of the utility model is shown;

[0065] Figure 2 shows a schematic structural diagram of a support assembly according to an embodiment of the present invention;

[0066] Figure 3 shows a schematic structural diagram of a support assembly according to an embodiment of the present invention;

[0067] Figure 4 shows a schematic structural diagram of an energy storage device according to an embodiment of the present invention.

[0068] Among them, Figures 1 to 4 the correspondence between the reference numerals and the component names in is:

[0069] 100 support assembly, 110 box body, 1102 opening, 1104 top surface, 112 bottom wall, 114 peripheral side wall, 1142 first side wall, 1144 second side wall, 1146 third side wall, 1148 fourth side wall, 120 support beam, 130 battery module, 140 strengthening member, 142 first strengthening beam, 144 strengthening sheet metal, 146 strengthening rib, 150 fixing member, 160 second strengthening beam, 170 cover body, 172 sealing ring, 174 through hole, 180 nut, 182 connecting plate, 190 positioning pin, 200 energy storage device. Detailed implementation manners

[0070] In order to be able to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0071] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0072] The following refers to Figures 1 to 4 Describe the support assembly and the energy storage device according to some embodiments of the present invention.

[0073] As Figure 1 , Figure 2 and Figure 3As shown in the figure, an embodiment of the present utility model provides a support assembly 100 for supporting a battery module 130. The support assembly 100 includes: a box body 110, the box body 110 includes a bottom wall 112 and a peripheral side wall 114; a support beam 120, the support beam 120 is arranged on the bottom wall 112, and the support beam 120 is used for supporting the battery module 130; a strengthening member 140, the strengthening member 140 connects the support beam 120 and the peripheral side wall 114.

[0074] In this embodiment, a support assembly 100 is defined. The support assembly 100 includes a box body 110 and a support beam 120. The support beam 120 can provide positioning and support for the battery module 130 in the energy storage device 200.

[0075] The battery module 130 is used for storing electric energy. The battery module 130 is arranged in the box body 110. The box body 110 can provide shielding protection outside the battery module 130 to prevent the battery module 130 from being damaged by external impacts and can reduce the probability of electric leakage.

[0076] Among them, the box body 110 includes a peripheral side wall 114 and a bottom wall 112. The battery module 130 is located above the bottom wall 112, and the peripheral side wall 114 surrounds the battery module 130 on all sides. The support beam 120 is arranged on the bottom wall 112, and the battery module 130 is fixed on the support beam 120. The support beam 120 can provide positioning and support for the battery module 130, so that the battery module 130 can be fixed at a predetermined installation position. Moreover, the support beam 120 connected to the bottom wall 112 can also absorb part of the impact in place of the bottom wall 112 when the bottom wall 112 is impacted, thereby enhancing the structural strength of the bottom wall 112 and reducing the probability of deformation and damage of the bottom wall 112.

[0077] On this basis, the support assembly 100 is further provided with a strengthening member 140. The strengthening member 140 connects the support beam 120 and the peripheral side wall 114 of the box body 110 at the same time, thereby combining the side wall of the box body 110, the support beam 120 and the bottom wall 112 of the box body 110 into an integrated whole through connection. When the side wall of the box body 110 or the bottom wall 112 of the box body 110 is impacted, the impact force can be transmitted between the side wall, the support beam 120 and the bottom wall 112, that is, the overall structure composed of the side wall of the box body 110, the support beam 120 and the bottom wall 112 of the box body 110 resists the impact force together, thereby reducing the probability of deformation of the overall structure and reducing the probability of collision between the battery module 130 and the box body 110.

[0078] It can be seen that by providing the strengthening member 140 in the present application, the support beam 120 and the box body 110 are integrated, thereby improving the mechanical strength of the support beam 120 and the box body 110 to cope with mechanical accidents during transportation and use, reducing the probability of damage to the battery module 130 due to impact, and ensuring the normal use of the battery module 130. Furthermore, the technical problems of poor reliability and poor safety existing in the related art are solved.

[0079] As Figure 1 and Figure 3 shown, in some embodiments of the present utility model, optionally, the strengthening member 140 includes: a first strengthening beam 142, the end face of the first strengthening beam 142 is connected to the support beam 120, and the side face of the first strengthening beam 142 is connected to the peripheral side wall 114.

[0080] In this embodiment, the strengthening member 140 includes a first strengthening beam 142. The first strengthening beam 142 is strip-shaped. One end face of the first strengthening beam 142 is connected to the support beam 120, specifically, it can be welded to the top of the support beam 120, and one side face of the first strengthening beam 142 is connected to the peripheral side wall 114 adjacent to the support beam 120, and it can also be welded to the peripheral side wall 114.

[0081] When the peripheral side wall 114 and the bottom wall 112 of the box body 110 connected by the first strengthening beam 142 are impacted during a mechanical accident, the impact force can be transmitted between the peripheral side wall 114, the first strengthening beam 142, the support beam 120 and the bottom wall 112, so as to jointly resist the impact force, reduce the probability of deformation of any one of the peripheral side wall 114, the first strengthening beam 142, the support beam 120 and the bottom wall 112 due to impact, thereby improving the mechanical strength of the box body 110 and the support beam 120, and effectively protecting the battery module 130 inside the box body 110 and above the support beam 120. Moreover, the first strengthening beam 142 has strong bending and torsion resistance. When the peripheral side wall 114 is directly impacted, the first strengthening beam 142 can provide support for the peripheral side wall 114, reduce the probability of deformation or even fracture of the peripheral side wall 114 under direct impact, thereby improving the impact resistance of the peripheral side wall 114, improving the mechanical strength of the box body 110, and further achieving the technical effects of improving the structural stability, improving the safety and reliability of the battery module 130.

[0082] As Figure 1 and Figure 3 shown, in some embodiments of the present utility model, optionally, the first strengthening beam 142 extends in the height direction of the box body 110 ( Figure 3 indicated by the arrow a in Figure 3 ); the number of the first strengthening beams 142 is multiple, and the multiple first strengthening beams 142 are spaced apart along the length direction of the support beam 120 (

[0083] In this embodiment, the first reinforcing beam 142 extends in the height direction of the box body 110, that is, the length direction of the first reinforcing beam 142 coincides with the height direction of the box body 110, and the support beam 120 is horizontally arranged on the bottom plate, and the first reinforcing beam 142 extending in the height direction and the support beam 120 are vertically combined into a T-shaped structure. The T-shaped structure has strong structural stability, can withstand strong impact force, and can reduce the possibility of misalignment and deformation of the support beam 120 and the first reinforcing beam 142, thereby achieving the technical effect of improving mechanical strength and improving structural stability.

[0084] On this basis, there are multiple first reinforcing beams 142, and the multiple first reinforcing beams 142 are spaced apart above the support beam 120 along the length direction of the support beam 120. By arranging multiple first reinforcing beams 142 at intervals above the support beam 120, the impact force can be distributed through the multiple first reinforcing beams 142, thereby reducing the probability of bending or even breaking of the support beam 120 and the first reinforcing beams 142, further improving the mechanical strength and improving the structural stability.

[0085] like Figure 2 As shown, in some embodiments of the present invention, optionally, the reinforcing component 140 further includes: a fixing component 150 , the fixing component 150 is disposed on the support beam 120 , and the fixing component 150 is used to connect the battery module 130 .

[0086] In this embodiment, the reinforcing component 140 further includes a fixing component 150, which is disposed above the support beam 120 and is used to connect the battery module 130 to fix the battery module 130 above the support beam 120. Specifically, the fixing component 150 includes a plurality of mounting columns, which are spaced apart on the support beam 120, and the battery module 130 is fixed above the mounting columns, which can provide positioning and support for the battery module 130.

[0087] By providing the fixing member 150, the battery module 130 can be lifted, so that the support beam 120 is spaced apart from the battery module 130, thereby reserving a deformation margin of the support beam 120 between the battery module 130 and the support beam 120. When subjected to an external impact, even if the impact force is transmitted to the support beam 120 to cause the support beam 120 to undergo a reversible deformation, the reserved space can ensure that the support beam 120 will not squeeze or collide with the battery module 130, thereby achieving the technical effect of improving the positioning stability and reliability of the battery module 130 and reducing the failure rate of the battery module 130.

[0088] like Figure 1 and Figure 2As shown, in some embodiments of the present utility model, optionally, the strengthening component 140 further includes: a strengthening sheet metal 144, the strengthening sheet metal 144 connects the peripheral side wall 114 and the fixing component 150, and the strengthening sheet metal 144 is spaced apart from the support beam 120; a strengthening rib 146, the strengthening rib 146 is disposed on the strengthening sheet metal 144.

[0089] In this embodiment, the strengthening component 140 further includes a strengthening sheet metal 144. The strengthening sheet metal 144 is horizontally arranged above the support beam 120. One side of the strengthening sheet metal 144 is connected to the fixing component 150, and the other side of the strengthening sheet metal 144 is connected to the peripheral side wall 114 adjacent to the support beam 120. When the peripheral side wall 114 is subjected to an external impact, the support beam 120 can provide support to the peripheral side wall 114 through the fixing component 150 and the strengthening sheet metal 144, so as to reduce the probability of irreversible deformation of the peripheral side wall 114. Moreover, there is a space between the strengthening sheet metal 144 and the support beam 120, and this space can be used to arrange the wiring harness assembly connecting the battery module 130, thereby reducing the wiring difficulty inside the support assembly 100 and optimizing the internal space layout of the support assembly 100.

[0090] On this basis, a strengthening rib 146 is horizontally arranged on the side of the strengthening sheet metal 144 facing away from the support beam 120. The strengthening rib 146 has strong bending and torsion resistance. By arranging the strengthening rib 146, part of the impact force can be shared for the strengthening sheet metal 144, so as to reduce the probability of irreversible deformation of the extremely strong sheet metal, and further achieve the technical effects of improving the mechanical strength and the structural stability.

[0091] Such as Figure 2 and Figure 3 As shown, in some embodiments of the present utility model, optionally, the peripheral side wall 114 includes a first side wall 1142, a second side wall 1144, a third side wall 1146 and a fourth side wall 1148. The first side wall 1142 and the second side wall 1144 are opposite, and the third side wall 1146 and the fourth side wall 1148 are opposite; the support beam 120 connects the first side wall 1142 and the second side wall 1144, and the strengthening component 140 connects the support beam 120 and the third side wall 1146, and / or the strengthening component 140 connects the support beam 120 and the fourth side wall 1148.

[0092] In this embodiment, the box body 110 is square. The peripheral side wall 114 of the box body 110 includes opposite first side wall 1142 and second side wall 1144, and the first side wall 1142 and the second side wall 1144 correspond to two long sides of the square box body 110. The peripheral side wall 114 of the box body 110 further includes opposite third side wall 1146 and fourth side wall 1148, and the third side wall 1146 and the fourth side wall 1148 correspond to two wide sides of the square box body 110. The first side wall 1142, the fourth side wall 1148, the second side wall 1144, and the third side wall 1146 are connected end to end to form the peripheral side wall 114 surrounding the battery module 130 on all four sides.

[0093] On this basis, the support beam 120 is horizontally arranged between the first side wall 1142 and the second side wall 1144, that is, the length direction of the support beam 120 is consistent with the width direction of the box body 110. By arranging the support beam 120 between the first side wall 1142 and the second side wall 1144, the length of the support beam 120 can be reduced while effectively supporting the battery module 130. On the one hand, the production cost is reduced, and on the other hand, it provides convenient conditions for the lightweight design of the support assembly 100.

[0094] Specifically, there are two support beams 120. One of the support beams 120 is arranged close to the third side wall 1146, and two first strengthening beams 142 are arranged on the support beam 120 close to the third side wall 1146, and the two first strengthening beams 142 connect the third side wall 1146 and the first support beam 120. The other support beam 120 is close to the fourth side wall 1148, and the support beam 120 close to the fourth side wall 1148 is connected to the strengthening sheet metal 144 through the fixing member 150, the strengthening sheet metal 144 is connected to the fourth side wall 1148, and a strengthening rib 146 is arranged above the strengthening sheet metal 144.

[0095] By jointly supporting the battery module 130 with the two support beams 120, bilateral positioning of the battery module 130 can be achieved, thereby improving the positioning stability of the battery module 130 and reducing the possibility of misalignment of the battery module 130. On this basis, by respectively arranging a strengthening member 140 on the two support beams 120, the third side wall 1146, the strengthening beam, the bottom wall 112, and the fourth side wall 1148 can be connected into a whole, so as to resist external impacts through this overall structure, and further achieve the technical effects of improving mechanical strength and reducing the failure rate of the battery module 130.

[0096] As Figure 1 and Figure 3 shown, in some embodiments of the present utility model, optionally, the support assembly 100 further includes: a second strengthening beam 160, and the second strengthening beam 160 is arranged on the first side wall 1142 and / or the second side wall 1144.

[0097] In this embodiment, at least one of the first side wall 1142 and the second side wall 1144 is provided with a second reinforcing beam 160. The second reinforcing beam 160 can provide support inside the first side wall 1142 and the second side wall 1144, so as to reduce the probability of irreversible deformation of the first side wall 1142 and the second side wall 1144 under external impact, thereby enhancing the mechanical strength of the box body 110 and effectively protecting the battery module 130 inside the box body 110.

[0098] Specifically, the second reinforcing beam 160 extends along the height direction of the box body 110, and the number of the second reinforcing beams 160 is multiple. The multiple second reinforcing beams 160 are spaced apart along the length direction of the box body 110, thereby further enhancing the mechanical strength of the box body 110. As Figure 1 and Figure 4 shown, an embodiment of the present utility model provides an energy storage device 200. The energy storage device 200 includes: the support assembly 100 in any of the above embodiments. The box body 110 includes an opening 1102. The energy storage device 200 further includes: a battery module 130, the battery module 130 is arranged on the support beam 120, and the battery module 130 is located inside the box body 110; a cover body 170, the cover body 170 is flange-connected to the box body 110, and the cover body 170 covers the opening 1102; a sealing ring 172, the sealing ring 172 is arranged between the cover body 170 and the box body 110, and the sealing ring 172 is used to seal the gap between the cover body 170 and the box body 110.

[0099] In this embodiment, an energy storage device 200 provided with the support assembly 100 in any of the above embodiments is defined. Therefore, the energy storage device 200 has the advantages of the support assembly 100 in any of the above embodiments and can achieve the technical effects that the support assembly 100 in any of the above embodiments can achieve. To avoid repetition, it will not be elaborated here.

[0100] The battery module 130 is used for storing electric energy. The battery module 130 is arranged inside the box body 110. An opening 1102 is provided at the top of the box body 110. The battery module 130 can be loaded into the inside of the box body 110 through the opening 1102. During subsequent use, the user can also maintain and repair the battery module 130 inside the box body 110 at the opening 1102.

[0101] On this basis, the energy storage device 200 further includes a cover body 170. The cover body 170 covers above the opening 1102, and the cover body 170 is flange-connected to the box body 110. On the one hand, the flange connection has the advantage of being detachable, which can provide convenient conditions for disassembling and assembling the battery module 130 and reduce the difficulty of replacing and maintaining the battery module 130. On the other hand, the flange connection has strong sealing performance, which can reduce the probability of sealing dead corners between the box body 110 and the cover body 170.

[0102] Among them, a sealing ring 172 is clamped between the cover body 170 and the box body 110. The sealing ring 172 surrounds the periphery of the opening 1102. The sealing ring 172 can fill the gap between the cover body 170 and the box body 110, thereby sealing the gap between the cover body 170 and the box body 110 to prevent pollutants such as dust and liquid from entering the interior of the box body 110, reducing the probability of the battery module 130 failing or being damaged due to pollutants, and further achieving the technical effects of improving the sealing performance of the energy storage device 200, reducing the failure rate of the battery module 130, and extending the service life of the battery module 130.

[0103] As Figure 1 and Figure 4 shown, in some embodiments of the present invention, optionally, the box body 110 includes a top surface 1104, the opening 1102 is provided on the top surface 1104, and the sealing ring 172 is press-fitted between the cover body 170 and the top surface 1104; the sealing ring 172 is foam-molded on the cover body 170.

[0104] In this embodiment, one side of the box body 110 facing the cover body 170 includes a top surface 1104, the opening 1102 is opened in the central area of the top surface 1104, and the top surface 1104 is flange-connected to the cover body 170.

[0105] On this basis, the sealing ring 172 is foam-molded on the lower surface of the cover body 170. The foam-molded sealing ring 172 is disposed opposite to the top surface 1104. After the foaming is completed, the cover body 170 can be covered above the top surface 1104, and the sealing ring 172 is clamped between the end surface under the flange connection and the cover body 170, so that the foam-molded sealing ring 172 deforms under extrusion and fills the gap between the cover body 170 and the top surface 1104 through the deformation, preventing pollutants from entering the inner side of the box body 110 between the cover body 170 and the top surface 1104, and further achieving the technical effects of improving the sealing reliability of the energy storage device 200 and reducing the failure rate of the battery module 130. At the same time, forming the sealing ring 172 by the foaming process can reduce the process complexity of the energy storage device 200, which is beneficial to reducing the production cost of the energy storage device 200.

[0106] As Figure 1 and Figure 4 shown, in some embodiments of the present invention, optionally, the cover body 170 includes a through hole 174, and the energy storage device 200 further includes: nuts 180, which are provided on the top surface 1104. The number of nuts 180 is multiple, and the multiple nuts 180 are distributed around the opening 1102. The through hole 174 is opposite to the nuts 180; a connecting member, the connecting member passes through the through hole 174, and the connecting member is connected to the nuts 180. The connecting member is used to press-fit the cover body 170 onto the nuts 180.

[0107] In this embodiment, the cover 170 is provided with through holes 174, and the number of the through holes 174 is multiple. The multiple through holes 174 are arranged along a loop line on the cover 170 to form an array. Correspondingly, nuts 180 are provided on the top surface 1104 of the box body 110, and the number of the nuts 180 is the same as that of the through holes 174. During the assembly process, the multiple through holes 174 and the multiple nuts 180 correspond to each other one by one.

[0108] The energy storage device 200 further includes connecting components. The connecting components pass through the cover 170 through the through holes 174 and are screwed to the nuts 180 below the through holes 174. The flange connection between the cover 170 and the box body can be completed by connecting multiple groups of through holes 174 and nuts 180 through multiple connecting components respectively.

[0109] Specifically, during the assembly process, the cover 170 is initially positioned on the box body first, so that the sealing ring 172 abuts against the top surface 1104, and the through holes 174 are aligned with the nuts 180. Then, the cover 170 is pressed down by inserting the connecting components. During this process, the sealing ring 172 is compressed and deformed until the lower surface of the cover 170 is assembled with the upper surface of the nut 180. At this time, the sealing ring 172 deformed under pressure fills the gap between the cover 170 and the top surface 1104 to achieve effective sealing.

[0110] Specifically, in the present application, through sealing in cooperation with the sealing ring 172 on the basis of flange connection, the waterproof level of the energy storage device 200 can be improved to IP67.

[0111] Specifically, the connecting components include screws and bolts.

[0112] In some embodiments of the present utility model, optionally, in the height direction of the box body 110, the size range of the nut 180 is: greater than or equal to 1 mm and less than or equal to 3 mm.

[0113] In this embodiment, in the height direction of the box body 110, the size of the nut 180 is the height of the nut 180. The height of the nut 180 corresponds to the distance that the nut 180 protrudes from the top surface 1104. After the assembly is completed, the top surface 1104 of the nut 180 contacts the bottom surface of the cover 170, and this distance corresponds to the height available for accommodating the sealing ring 172.

[0114] On this basis, the height of the nut 180 needs to be greater than or equal to 1 mm and less than or equal to 3 mm.

[0115] By limiting the height of the nut 180 to be greater than or equal to 1 mm, sufficient layout space can be reserved for the sealing ring 172, ensuring that the cover 170 can be smoothly pressed above the nut 180 and reducing the sealing assembly difficulty of the energy storage device 200.

[0116] By limiting the height of the nut 180 to be less than or equal to 3 mm, the gap between the cover 170 and the top surface 1104 can be reduced on the basis of meeting the spatial layout requirements of the sealing ring 172, thereby reducing the sealing difficulty of the sealing ring 172 for this gap and improving the sealing effect between the cover 170 and the box body.

[0117] Specifically, the height of the nut 180 is 2 mm, and the thickness of the sealing ring 172 is greater than the height of the nut 180 to ensure that the sealing ring 172 can be compressed.

[0118] Such as Figure 4 As shown, in some embodiments of the present invention, optionally, the energy storage device 200 further includes: a positioning pin 190, the positioning pin 190 is provided on the side of the cover 170 facing the opening 1102, and the cover 170 includes a first posture and at least one second posture; when the cover 170 is in the first posture, the positioning pin 190 avoids the battery module 130, and the cover 170 can be buckled on the box body 110; when the cover 170 is in the second posture, the positioning pin 190 interferes with the battery module 130, and the cover 170 cannot be buckled on the box body 110.

[0119] In this embodiment, a positioning pin 190 is provided on the side of the cover 170 facing the box body, and the positioning pin 190 avoids the top surface 1104 of the box body and is opposite to the opening 1102 of the box body. During the assembly process, the internal structure of the box body needs to be assembled first, and then the cover 170 is buckled. During the process of buckling the cover 170, the positioning pin 190 extends into the box body.

[0120] The positioning pin 190 is eccentrically arranged on the cover 170. When the cover 170 is initially positioned above the box body, the cover 170 includes a first posture and at least one second posture.

[0121] For example, when the horizontal cross-section of the box body is rectangular, the cover 170 placed on the box body includes two possibilities of being correct and reversed, the correct posture is the first posture, and the reversed posture corresponds to the second posture. Or when the horizontal cross-section of the box body is square, the cover 170 placed on the box body includes a first posture and three second postures.

[0122] On this basis, when the cover 170 initially positioned above the box body is in the first posture, the positioning pin 190 can smoothly extend into the internal space of the box body, and the positioning pin 190 does not interfere with the internal structure of the box body, and the cover 170 can be smoothly pressed on the top surface 1104 through the connecting component.

[0123] When the upper cover 170 of the box body is initially positioned in the wrong second posture, the positioning pin 190 will be blocked by the battery module 130 in the box body, resulting in the positioning pin 190 being unable to continue to probe downwards. At this time, the cover 170 is lifted up, and the connecting component connecting nut 180 cannot be operated, thus timely reminding the worker or user that the pre-assembly posture of the cover 170 is incorrect.

[0124] It can be seen that by setting the positioning pin 190, the anti-fooling design of the cover 170 can be realized, avoiding the misalignment installation of the cover 170, and further achieving the technical effects of improving the assembly accuracy of the energy storage device 200 and increasing the yield rate of the energy storage device 200.

[0125] Specifically, a connecting plate 182 is further provided on the top surface 1104. A screw hole is provided on the connecting plate 182. The screw passing through the cover 170 can be inserted into the screw hole to further enhance the connection stability between the cover 170 and the box body.

[0126] It should be clear that in the claims, the description and the drawings of the present invention, the term "a plurality" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for more convenient description of the present invention and to make the description process more simple, rather than to indicate or imply that the device or element referred to must have the specific orientation, be constructed and operated in the specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; the terms "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific situations of the above data.

[0127] In the claims, the description and the drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the description and the drawings of the present invention, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0128] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A support assembly for supporting a battery module, characterized in that: include: A box body, the box body comprising a bottom wall and a peripheral side wall; A support beam, the support beam is arranged on the bottom wall, and the support beam is used to support the battery module; a reinforcing member connecting the support beam and the peripheral side wall; The reinforcing member comprises: A first reinforcing beam, wherein an end surface of the first reinforcing beam is connected to the supporting beam, and a side surface of the first reinforcing beam is connected to the peripheral side wall.

2. The support assembly according to claim 1, characterized in that: The first reinforcing beam extends in the height direction of the box body; There are multiple first reinforcing beams, and the multiple first reinforcing beams are distributed at intervals along the length direction of the support beam.

3. The support assembly according to claim 1, characterized in that: The reinforcing member comprises: A fixing component is arranged on the support beam and is used to connect the battery module.

4. The support assembly according to claim 3, characterized in that: The reinforcement component also includes: A reinforcing sheet metal, wherein the reinforcing sheet metal connects the peripheral side wall and the fixing component, and the reinforcing sheet metal is spaced apart from the supporting beam; The reinforcing ribs are arranged on the reinforcing sheet metal.

5. The support assembly according to any one of claims 1 to 4, characterized in that: The peripheral side wall includes a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall is opposite to the second side wall, and the third side wall is opposite to the fourth side wall; The support beam connects the first side wall and the second side wall, the reinforcement component connects the support beam and the third side wall, and / or the reinforcement component connects the support beam and the fourth side wall.

6. The support assembly according to claim 5, characterized in that Also includes: A second reinforcing beam, wherein the second reinforcing beam is arranged on the first side wall and / or the second side wall.

7. An energy storage device, characterized in that: include: The support assembly according to any one of claims 1 to 6, wherein the housing comprises an opening; A battery module, wherein the battery module is arranged on the support beam and is located in the box; A cover body, the cover body is connected to the box body flange, and the cover body covers the opening; A sealing ring is arranged between the cover body and the box body, and is used to seal the gap between the cover body and the box body.

8. The energy storage device according to claim 7, characterized in that: The box body comprises a top surface, the opening is arranged on the top surface, and the sealing ring is press-fitted between the cover body and the top surface; The sealing ring is foam-molded on the cover body.

9. The energy storage device according to claim 8, characterized in that: The cover body includes a through hole, and the support assembly further includes: Nuts are arranged on the top surface, the number of the nuts is multiple, the multiple nuts are distributed around the opening, and the through holes are opposite to the nuts; A connecting component is inserted into the through hole and connected to the nut, and is used to press the cover onto the nut.

10. The energy storage device according to claim 9, characterized in that: In the height direction of the box body, the size of the nut ranges from greater than or equal to 1 mm to less than or equal to 3 mm.

11. The energy storage device according to claim 7, characterized in that: Also includes: A positioning pin, the positioning pin is arranged on a side of the cover body facing the opening, and the cover body includes a first posture and at least one second posture; When the cover is in the first posture, the positioning pin avoids the battery module, and the cover can be buckled on the box; When the cover is in the second posture, the positioning pin interferes with the battery module, and the cover cannot be buckled on the box.

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