A support device and energy storage module

Abstract

This invention discloses a support device and a liquid-cooled module. The support device, used to support energy storage cells, includes a base and a frame reinforcement. The base is an open box with a flange, and the bottom of the box has a load-bearing bottom wall for supporting the energy storage cells. The frame reinforcement is formed by multiple frame strips fixedly connected and enclosing each other. Each frame strip has a bottom edge, a top edge, and a connecting edge for connecting the bottom edge and the top edge. The bottom edge is adapted to be fixedly connected to the load-bearing bottom wall and used to support the load-bearing bottom wall, and the top edge is adapted to be fixedly connected to the flange and used to support the flange. The energy storage module uses the above-described support device. This application is low in cost and high in strength.

Description

Technical Field

[0001] This invention relates to the field of energy storage, and more specifically to a support device and an energy storage module. Background Technology

[0002] Energy storage systems typically consist of multiple energy storage modules. Each module includes multiple energy storage cells and a housing for these cells. The bottom of the housing usually has a support and a liquid cooling plate. The energy storage cells are attached to the liquid cooling plate for heat dissipation. Existing support components are often integrally molded using a die-casting process, which is costly and has low strength. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned defects or problems in the prior art and to provide a support device and energy storage module that are low in cost and high in strength.

[0004] To achieve the above objectives, the present invention and its preferred embodiments employ the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical Solution 1: A support device for supporting energy storage cells, comprising: a base, which is an open box with a flange, the bottom of the box having a load-bearing bottom wall for supporting the energy storage cells; and a frame reinforcement, which is formed by multiple frame strips fixedly connected and enclosing each other, each frame strip having a bottom edge, a top edge, and a connecting edge for connecting the bottom edge and the top edge as a whole, the bottom edge being adapted to be fixedly connected to the load-bearing bottom wall and used to support the load-bearing bottom wall, and the top edge being adapted to be fixedly connected to the flange and used to support the flange.

[0006] Based on technical solution one, there is also technical solution two, in which the flange is located at the open end of the box body.

[0007] Based on technical solution two, there is also technical solution three, in which the four corners of the frame reinforcement are laminated and welded.

[0008] Based on technical solution three, there is also technical solution four. In technical solution four, the frame strips are enclosed to form a cuboid structure and connected as one unit. The layer welding is only located on the connecting edge of each long frame strip of the cuboid structure.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five, each frame bar is a C-shaped channel steel with its opening facing inward. The bottom wall of each frame bar forms the connecting edge, the top side wall of each frame bar forms the top edge, and the bottom side wall of each frame bar forms the bottom edge. The width of the bottom edge of each frame bar is greater than the width of the top edge. Each frame bar includes two first frame bars forming the long side of a cuboid structure and two second frame bars forming the short side of a cuboid structure. The bottom wall of the first frame bar is provided with extension walls at both ends, which are adapted to extend outward relative to its two side walls. The two ends of the second frame bar are respectively provided with abutment walls that are perpendicular to its bottom wall and two side walls. The two extension walls of each first frame bar are adapted to abut the abutment walls of the two second frame bars located on the same side and welded to them to form the laminated weld. The free ends of the two side walls of each first frame bar are adapted to abut the free ends of the two corresponding side walls of the two second frame bars and welded to them.

[0010] Based on technical solution five, there is also technical solution six. In technical solution six, each frame strip has upward protruding screws spaced apart along its extension direction on its top edge. The flange has through holes corresponding to each screw so that the flange is suitable for screwing with the top edge. The flange is also welded to the top edge at intervals. The bottom edge is welded to the bottom edge of the load-bearing bottom wall at intervals.

[0011] Based on technical solution six, technical solution seven is also provided. Technical solution seven further includes rollers; each first frame bar is provided with at least two rollers whose axes are perpendicular to the length direction of the first frame bar along its length direction, and the rollers are partially embedded in the first frame bar and their bottoms extend out of the bottom edge.

[0012] Based on technical solution seven, technical solution eight is also provided. In technical solution eight, the first frame bar includes a body, several mounting parts, and several lifting parts. The body is a C-shaped channel steel. The bottom edge of the first frame bar has a clearance hole suitable for the roller to extend. Each mounting part is distributed in the groove of the body along the extension direction of the connecting edge and is welded to the body. It has a mounting wall opposite to the connecting edge of the first frame bar. The mounting shaft of the roller is fixedly connected to the bottom wall of the groove and the mounting wall of the first frame bar. Each lifting part is distributed in the groove of the body along the extension direction of the connecting edge and is welded to the body. The lifting part has a first hanging hole, and the connecting edge has a second hanging hole at the position corresponding to the lifting part. Each mounting part and each lifting part of each first frame bar is distributed at intervals along the extension direction of the connecting edge.

[0013] Based on any one of technical solutions one to eight, a technical solution nine is also provided. Technical solution nine further includes a liquid cooling plate and at least two support beams arranged along the length direction of the first frame bar and extending along the length direction of the second frame bar. The base is integrally formed by stamping. The load-bearing bottom wall is provided with a plurality of reinforcing ribs spaced apart along the extension direction of the first frame bar and extending along the length direction of the second frame bar. The load-bearing bottom wall is also adapted to support the liquid cooling plate and be fixedly connected to it. The support beams are adapted to avoid the liquid cooling plate being fixedly connected to the base and are used to support the energy storage cell.

[0014] Technical Solution 10: The present invention also provides an energy storage module, characterized in that it adopts the support device described in any one of Technical Solutions 1 to 9.

[0015] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0016] In Technical Solution 1 and its preferred embodiments, the load-bearing bottom wall of the base supports the energy storage cells, thus the base experiences the greatest stress. A frame reinforcement is provided, consisting of multiple frame strips fixedly connected and enclosing each other. Each frame strip has a bottom edge, a top edge, and a connecting edge for integrating the bottom and top edges, giving the frame high strength. The bottom edge is adapted to be fixedly connected to and support the load-bearing bottom wall, forming a reinforced structure between the edge of the load-bearing bottom wall and the bottom edge. Simultaneously, the top edge is fixedly connected to and supports the flange, forming a reinforced structure between the flange and the bottom edge of the base. Therefore, the frame reinforcement provides reinforcement in both the upper and lower parts of the entire base. During the hoisting of the energy storage module, the frame strips of the frame reinforcement serve as hoisting points, and the weight of the energy storage cells is entirely supported by the load-bearing bottom wall, resulting in the greatest stress on the load-bearing bottom wall of the base. If the base support is only fixed to the bottom edge of the frame strip, the middle of the base support is prone to collapse and the top edge of the frame reinforcement will flip up. In technical solution one, after the top edge is connected to the flange, the point where the base support is subjected to the greatest force during hoisting is at the flange, that is, at the connection between the flange and the top edge. Therefore, the outer frame reinforcement is not easy to flip outward. On this basis, the bottom edge of the frame strip supports the load-bearing bottom wall and is fixed to the load-bearing bottom wall, so that both the upper and lower ends of the base support are pulled, and multiple reinforcement connections are formed between the base support and the outer frame in the vertical and horizontal directions, so that the base support and the outer frame are not easy to deform and the strength of the entire support device is improved. Similarly, if the base support is only fixed to the top edge of the frame strip, the middle of the base support will also collapse and cause the top edge of the outer frame reinforcement to flip up. However, after the bottom edge is fixed to the load-bearing bottom wall, the edge of the load-bearing bottom wall can be subjected to force, thereby preventing the middle of the base support from collapsing. The supporting device is formed by a base and a frame reinforcement. Compared with the one-piece molding process using die casting, the overall cost is lower. Therefore, this technical solution can achieve both high load-bearing strength and significantly reduce costs.

[0017] In technical solution two and its preferred embodiments, the flange is located at the open end of the box body, which simplifies the processing and allows the reinforcing structure of the base to be distributed at both the upper and lower ends of the base. Compared to when the flange is located in the middle of the vertical direction of the base, the base is less prone to deformation. In embodiments where the flange is not located at the open end of the box body, the flange can be formed by bending the side wall of the box body downwards and then outwards.

[0018] In technical solution three and its preferred embodiments, the four corners of the frame reinforcement are laminated and welded, which further greatly improves the strength of the frame reinforcement and makes the structure of the entire frame reinforcement more stable and less prone to deformation.

[0019] In technical solution four and its preferred embodiments, the frame strips are enclosed to form a cuboid structure and connected as a whole. The layer welding is only located on the connecting edge of each long frame strip of the cuboid structure. Compared with the corner parts (bottom edge, connecting edge and top edge) of the frame reinforcement being layered and welded, the cost is lower and the processing is simpler and more controllable. Moreover, the layer welding on the connecting edge of each long frame strip can greatly enhance the strength of the longer frame strips. When the support device supports the energy storage cell, it can ensure that the entire support device is not easily deformed and has high strength. In addition, the layer welding between the connecting edge of the long frame strip and the short frame strip also strengthens the strength of the short frame strip.

[0020] In technical solution five and its preferred embodiments, each frame strip is a C-shaped channel steel with the opening facing inward. C-shaped channel steel is easy to process and has high strength. The width of the bottom edge of each frame strip is greater than the width of the top edge, which is beneficial for the bottom support to be placed in the frame reinforcement and for the bottom edge to support and be fixed to the load-bearing bottom wall, and the top edge to support and be fixed to the flange. The first frame strip is provided with an extension wall, and the two ends of the second frame strip are provided with abutment walls. The extension wall abuts the abutment wall and is welded to it to form a layered weld, which is simple to process and easy to operate. The two ends of the two slot side walls of the first frame strip are respectively adapted to abut the free ends of the two slot side walls of the two second frame strips and be welded to them, so that the top and bottom edges of the first frame strip are also welded to the top and bottom edges of the second frame strip. Moreover, the welding here only forms a weld line, which is cheaper than welding the entire surface. Therefore, in this solution, the strength of the frame reinforcement can be enhanced by a small amount of surface welding (extension wall and abutment wall) and line welding (short edge of bottom edge and short edge of top edge), which is inexpensive.

[0021] In technical solution six and its preferred embodiments, the screws can be used to pre-position the base when it is placed inside the frame reinforcement, and can also be used to pre-position the outer cover when the support device is connected to the outer cover of the energy storage module, thereby reducing the installation difficulty; the flange is welded to the top edge at intervals, and the bottom edge is welded to the bottom edge of the load-bearing bottom wall at intervals, which not only reduces the cost compared to full welding, but also avoids the deformation of the base and frame strip caused by processing errors, thus ensuring the stability of the structure at a low cost.

[0022] In technical solution seven and its preferred embodiments, when the energy storage module adopts the support device of technical solution seven, the rollers make it easy to push the entire energy storage module into and pull it out of the cabinet, thus making the installation and maintenance of the energy storage module more labor-saving and simple.

[0023] In technical solution eight and its preferred embodiments, when the energy storage module is stationary, the strength of the entire energy storage module is basically supported by the rollers. Therefore, the rollers should also have high strength. In this technical solution, by setting up mounting parts, which are welded to the main body, and the mounting shaft of the rollers are fixed to the bottom wall of the groove and the mounting wall of the first frame bar, the rollers also have high strength. The lifting parts are welded to the connecting edge of the first frame bar, and a first hanging hole is formed on the lifting parts. A second hanging hole is opened at the position corresponding to the connecting edge and the lifting parts. Therefore, when the energy storage module is lifted, the first hanging hole and the second hanging hole form a reinforcing structure, which avoids deformation of the first frame bar. The lifting parts and mounting parts on each first frame bar are arranged at intervals along the first direction, so that the first frame bar forms a reinforcing structure at intervals, which further improves the strength of the first frame bar.

[0024] In technical solution nine and its preferred embodiments, the setting of reinforcing ribs increases the strength of the load-bearing bottom wall and can be integrally formed by stamping process, which is inexpensive. Each reinforcing rib extends along the length direction of the second frame bar. When the energy storage cells extend along the length direction of the first frame bar and multiple energy storage cells are arranged along the length direction of the second frame bar, each reinforcing rib can support multiple energy storage cells, resulting in better load-bearing performance. The liquid cooling plate can be used to dissipate heat for the energy storage cells, and the setting of the support beam facilitates the support of the energy storage cells.

[0025] Technical solution ten adopts the support device from technical solutions one through nine, and accordingly has the technical advantages of technical solutions one through nine. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the support device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the support device supporting the energy storage cell according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the base of an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the frame reinforcement and rollers according to an embodiment of the present invention;

[0031] Figure 5 for Figure 4 Partial exploded view;

[0032] Figure 6 This is a side view of the support device according to an embodiment of the present invention;

[0033] Figure 7 for Figure 6 A cross-sectional view along the AA direction;

[0034] Figure 8 for Figure 6 A cross-sectional view along the BB direction;

[0035] Explanation of key figure labels:

[0036] 10 base support; 11 flange; 111 through hole; 12 load-bearing bottom wall; 13 reinforcing rib; 20 frame reinforcement; 21 first frame strip; 211 body; 2111 extension wall; 2112 second hanging hole; 212 hoisting component; 2121 first hanging hole; 213 mounting component; 2131 mounting wall; 214 clearance hole; 22 second frame strip; 221 abutting wall; 23 bottom edge; 24 top edge; 241 screw; 242 nut; 25 connecting edge; 30 liquid cooling plate; 40 support beam; 50 roller; 60 energy storage cell; 100 energy storage module. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0039] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0040] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection by other means or components.

[0041] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0042] See Figure 1-2 , Figure 1-2 A support device is shown for an energy storage module 100. In this embodiment, the energy storage module 100 includes two cell packs arranged along a first direction. Each cell pack includes N energy storage cells 60 arranged along a second direction perpendicular to the first direction and extending along the first direction. The length direction of the energy storage cells 60 is the first direction, and the width direction of the energy storage cells 60 is the second direction. Figure 1-2 In this context, the first direction is the front-to-back direction, and the second direction is the left-to-right direction. N is a positive integer greater than 1; in this embodiment, N is 4.

[0043] The support device includes a base 10, a frame reinforcement 20, and rollers 50. Figure 1 The diagram also shows structures such as the liquid cooling plate 30 and the support beam 40 that supports the energy storage cell 60.

[0044] See Figure 3The base 10 is a stamped, open box with a flange 11. The bottom of the box has a load-bearing bottom wall 12 for supporting the energy storage cells 60. In this embodiment, the flange 11 is located at the open end of the box. In embodiments where the flange 11 is not located at the open end, the flange 11 can be formed by bending downwards and then outwards from the side wall of the box. A plurality of through holes 111 are spaced apart on the flange 11. The load-bearing bottom wall 12 has a plurality of reinforcing ribs 13 spaced apart along a first direction and extending along a second direction. The reinforcing ribs 13 increase the strength of the load-bearing bottom wall 12 and allow each reinforcing rib 13 to support each cell in the cell pack, resulting in better support performance.

[0045] See Figure 4-8 The frame reinforcement 20 is formed by multiple frame strips fixed to each other and enclosing each other. Each frame strip has a bottom edge 23, a top edge 24, and a connecting edge 25 for connecting the bottom edge 23 and the top edge 24 as a whole. See [reference needed] Figure 7 The bottom edge 23 is adapted to be fixedly connected to and used to support the load-bearing bottom wall 12, and the top edge 24 is adapted to be fixedly connected to and used to support the flange 11. See also Figure 4-5 Each frame strip has an upwardly protruding screw 241 spaced along its extension direction on its top edge 24, and a nut 242 spaced along its extension direction on its top edge 24. The nuts 242 and screws 241 are spaced apart. The through holes 111 of the flange 11 correspond to the nuts 242 and screws 241, so that the flange 11 is suitable for screwing with the top edge 24. The flange 11 is also welded to the top edge 24 at intervals. The bottom edge 23 is welded to the bottom edge of the load-bearing bottom wall 12 at intervals. The screw 241 can be used to pre-position the base support 10 when it is placed inside the frame reinforcement 20. The screw 241 can also be used to position the outer cover when the support device is connected to the outer cover of the energy storage module 100, thereby reducing the installation difficulty. The flange 11 is welded to the top edge 24 at intervals, and the bottom edge 23 is welded to the bottom edge of the load-bearing bottom wall 12 at intervals. Compared with full welding, this not only reduces the cost, but also avoids the deformation of the base support 10 and frame strip caused by processing errors, thus ensuring the stability of the structure at a lower cost.

[0046] In this embodiment, both the base 10 and the frame reinforcement 20 are made of sheet metal.

[0047] The liquid cooling plate 30, supported by the load-bearing bottom wall 12, is used to dissipate heat from the energy storage cell 60. Figure 1A total of three support beams 40 are shown. The three support beams 40 are arranged along the first direction and extend along the second direction. Each support beam 40 is screwed and welded to the bottom support 10. When the support beam 40 is screwed and welded to the bottom support 10, the liquid cooling plate 30 should be avoided. The front end of the liquid cooling plate 30 is provided with a liquid inlet joint and a liquid outlet joint. Therefore, the support beam 40 at the front end avoids the liquid cooling plate 30 to form a three-section structure. In this embodiment, the cross-section of the support beam 40 at the front end is in a "ji" shape; both ends of the support beam 40 in the middle are welded to the side wall of the bottom support 10, and the other parts are screwed to the bearing bottom wall 12. The liquid cooling plate 30 should be provided with holes corresponding to the screwing positions of the middle support beam 40 for the screws 241 to pass through. The cross-section of the support beam 40 in the middle is in a groove shape with the opening facing downwards; the rear end of the support beam 40 at the rear is welded to the rear side wall of the bottom support 10, and the front end is screwed to the bearing bottom wall 12. The cross-section of the support beam 40 at the rear is in a groove shape with the opening facing downwards. The different cross-sections of the three support beams 40 cause each support beam 40 to form multiple bends, having greater strength, and at the same time minimizing the impact on the liquid cooling plate 30. Both ends of each energy storage cell 60 are respectively supported on two support beams 40.

[0048] Preferably in this embodiment, laminated welding is formed at the four corners of the frame reinforcement 20.

[0049] Specifically, referring to Figure 4-5 , each frame bar is a C-shaped channel steel with the opening facing inwards. The bottom wall of the groove of each frame bar forms a connecting edge 25, the side wall of the groove at the top of each frame bar forms a top edge 24, the side wall of the groove at the bottom of each frame bar forms a bottom edge 23, and the width of the bottom edge 23 of each frame bar is greater than the width of the top edge 24; the frame bars enclose to form a cuboid structure and are connected as a whole. The frame bars include two first frame bars 21 forming the long sides of the cuboid structure and two second frame bars 22 forming the short sides of the cuboid structure; wherein, the extending direction of the first frame bar 21 is the first direction, and the extending direction of the second frame bar 22 is the second direction.

[0050] In order to reduce costs, the laminated welding is only located on the connecting edge 25 of each long frame bar (the first frame bar 21) of the cuboid structure. Compared with the laminated welding formed on each part (the bottom edge 23, the connecting edge 25, and the top edge 24) at the corners of the frame reinforcement 20, the cost is lower, the processing is simpler and more controllable, and the laminated welding formed on the connecting edge 25 of each long frame bar can greatly strengthen the strength of the longer frame bar. When the supporting device supports the energy storage cell 60, it can ensure that the entire supporting device is not easily deformed and has high strength; in addition, the laminated welding of the connecting edge 25 of the long frame bar and the short frame bar also strengthens the strength of the short frame bar.

[0051] Specifically in this embodiment, referring to Figure 4-5 and Figure 8The first frame bar 21 has extension walls 2111 at both ends of its bottom wall, which are adapted to extend outward relative to its two side walls; the second frame bar 22 has abutment walls 221 at both ends, which are perpendicular to its bottom wall and two side walls; the two extension walls 2111 of each first frame bar 21 are adapted to abut against the abutment walls 221 of the two second frame bars 22 located on the same side and welded to them to form a laminated weld; the free ends of the two side walls of each first frame bar 21 are adapted to abut against the free ends of the two corresponding side walls of the two second frame bars 22 and welded to them. The first frame strip 21 has extension walls 2111 at both ends, and the second frame strip 22 has abutment walls 221 at both ends. The extension walls 2111 abut against the abutment walls 221 and are welded to them to form a layered weld, which is simple to process and easy to operate. The free ends of the two groove sidewalls of the first frame strip 21 are respectively adapted to abut against the free ends of the two corresponding groove sidewalls of the two second frame strips 22 and are welded to them, so that the top edge 24 and bottom edge 23 of the first frame strip 21 are also welded to the top edge 24 and bottom edge 23 of the second frame strip 22. Moreover, the welding here only forms a welding line, which is cheaper than welding the entire surface. Therefore, the strength of the frame reinforcement 20 can be enhanced by a small amount of surface welding (extension walls 2111 and abutment walls 221) and line welding (short edge of bottom edge 23 and short edge of top edge 24), which is inexpensive.

[0052] To meet the hoisting requirements of the energy storage module 100, each frame should also be equipped with hoisting holes. Specifically, in this embodiment, see [link to relevant documentation]. Figure 4-5 and Figure 7 The lifting holes are located on the first frame bar 21. Specifically, the first frame bar 21 includes a body 211 and several lifting components 212. The body 211 is a C-shaped channel steel, with a top edge 24, a bottom edge 23, and a connecting edge 25 formed on it. Each lifting component 212 is distributed along a first direction within the groove of the body 211 and welded to the body 211. A first hanging hole 2121 is provided on the lifting component 212, and a second hanging hole 2112 is provided on the connecting edge 25 at a position corresponding to the lifting component 212. The first hanging hole 2121 and the second hanging hole 2112 together form the lifting hole. Since the lifting component 212 is welded to the connecting edge 25 of the first frame bar 21, the first hanging hole 2121 and the second hanging hole 2112 form a reinforcing structure during the lifting of the energy storage module 100, preventing deformation of the first frame bar 21.

[0053] Each first frame 21 is provided with at least two rollers 50 whose axes are perpendicular to the length direction of the first frame 21. The rollers 50 are partially embedded in the first frame 21 and their bottoms extend out of the bottom edge 23. The arrangement of the rollers 50 makes it easy to push the entire energy storage module 100 into and pull it out of the cabinet, thereby making the installation and maintenance of the energy storage module 100 easier and simpler.

[0054] Specifically, see Figure 4-5 and Figure 7 The first frame strip 21 also includes several mounting parts 213. The bottom edge 23 of the first frame strip 21 has clearance holes 214 suitable for the roller 50 to extend out. Each mounting part 213 is distributed in the groove of the body 211 along the first direction and welded to the body 211. It has a mounting wall 2131 opposite to the connecting edge 25 of the first frame strip 21. The mounting shaft of the roller 50 is fixedly connected to the bottom wall of the groove of the first frame strip 21 and the mounting wall 2131. Figure 7 In this embodiment, the mounting component 213 is stepped, and the connecting edge 25 and bottom edge 23 of the mounting component 213 to the body 211 are welded. In this embodiment, the rollers 50 of the two first frame bars 21 are symmetrically arranged. When the energy storage module 100 is stationary, the strength of the entire energy storage module 100 is basically supported by the rollers 50; therefore, the rollers 50 should also have considerable strength. In this embodiment, by setting the mounting component 213, which is welded to the body 211, and the mounting shaft of the roller 50 being fixedly connected to the bottom wall of the groove and the mounting wall 2131 of the first frame bar 21, the roller 50 also has considerable strength. Figure 4-5 It can also be seen that each hoisting component 212 and each mounting component 213 on each first frame bar 21 are arranged at intervals along the first direction, so that the first frame bar 21 forms a reinforcing structure at intervals, which further improves the strength of the first frame bar 21.

[0055] In this embodiment, the load-bearing bottom wall 12 of the base 10 supports the energy storage cell 60, thus the base 10 experiences the greatest force. A frame reinforcement 20 is provided, which is formed by multiple frame strips fixedly connected and enclosing each other. Each frame strip has a bottom edge 23, a top edge 24, and a connecting edge 25 for connecting the bottom edge 23 and the top edge 24 as a whole, giving the frame reinforcement 20 high strength. The bottom edge 23 is adapted to be fixedly connected to the load-bearing bottom wall 12 and used to support the load-bearing bottom wall 12, thus ensuring the load-bearing capacity is sufficient. The edge of the heavy-duty bottom wall 12 and the bottom edge 23 form a reinforcing structure. Simultaneously, the top edge 24 is fixed to the flange 11 and serves to support the flange 11, thus forming a reinforcing structure between the flange 11 and the bottom edge 23 of the base support 10. Consequently, the frame forms a reinforcing structure along both the upper and lower edges of the entire base support 10. During the hoisting of the energy storage module 100, the frame bars of the frame reinforcement 20 serve as hoisting points, and the weight of the energy storage cells 60 is supported by the load-bearing bottom wall 12. Under the greatest stress, if the bottom support 10 is only fixed to the bottom edge 23 of the frame strip, the middle of the bottom support 10 is prone to collapse, causing the top edge 24 of the frame reinforcement 20 to flip upwards. In this embodiment, after the top edge 24 is connected to the flange 11, the point where the bottom support 10 experiences the greatest stress during hoisting is at the flange 11, that is, at the connection between the flange 11 and the top edge 24. Therefore, the outer frame reinforcement is not easy to flip outwards. On this basis, the bottom edge 23 of the frame strip supports the load-bearing bottom wall 12 and is fixed to the load-bearing bottom wall 12, so that the upper part of the bottom support 10... Both ends are under tension, creating multiple reinforcing connections between the base support 10 and the outer frame in both vertical and horizontal directions. This prevents deformation of both the base support 10 and the outer frame, improving the overall strength of the support device. Similarly, if the base support 10 is only fixed to the top edge 24 of the frame strip, the middle of the base support 10 will collapse, causing the top edge 24 of the outer frame reinforcement to flip upwards. However, the fixed connection between the bottom edge 23 and the load-bearing bottom wall 12 allows the edge of the load-bearing bottom wall 12 to bear the force, thus preventing the middle of the base support 10 from collapsing. The base support 10 is formed using a stamping process, and the frame reinforcement 20 can also be formed using a similar process, resulting in a lower overall cost. Therefore, this embodiment achieves both high load-bearing strength and significantly reduces costs.

[0056] The flange 11 is located at the open end of the box, which simplifies the manufacturing process and allows the reinforcing structure of the base 10 to be distributed at both the upper and lower ends of the base 10. Compared to the flange 11 being located in the middle of the vertical direction of the base 10, the base 10 is less prone to deformation. The four corners of the frame reinforcement 20 are laminated and welded, which further greatly improves the strength of the frame reinforcement 20, making the entire frame reinforcement 20 structure more stable and less prone to deformation.

[0057] This embodiment also provides an energy storage module 100, see [link]. Figure 2 It adopts the support device in Embodiment 1 and has the same advantages as Embodiment 1.

[0058] It should be understood that in practical applications, the energy storage module 100 will also include electrical components such as an outer casing, battery cells, copper busbars, terminals, fuse switches, and sensors. The supporting device is fixedly connected to the outer casing to form a housing that can accommodate the battery cells. The battery cells can be connected in series via copper busbars and then electrically connected to external devices via terminals. This part is prior art and will not be described in detail here. The outer casing can also be a box structure with a bottom flange, so the screws 241 on the top edge 24 can also be pre-positioned on the outer casing.

[0059] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A support device for supporting an energy storage cell (60), characterized in that, include: The base (10) is an open box with a flange (11), and the bottom of the box is provided with a load-bearing bottom wall (12) for supporting the energy storage cell (60); and The frame reinforcement (20) is formed by fixing multiple frame strips together and enclosing each other. Each frame strip has a bottom edge (23), a top edge (24), and a connecting edge (25) for connecting the bottom edge (23) and the top edge (24) into one piece. The bottom edge (23) is adapted to be fixed to the load-bearing bottom wall (12) and used to support the load-bearing bottom wall (12). The top edge (24) is adapted to be fixed to the flange (11) and used to support the flange (11). Each frame strip is a C-shaped channel steel with the opening facing inward. The bottom wall of the channel of each frame strip forms the connecting edge (25). The top side wall of the channel of each frame strip forms the top edge (24). The bottom side wall of the channel of each frame strip forms the bottom edge (23). The width of the bottom edge (23) of each frame strip is greater than the width of the top edge (24). The four corners of the frame reinforcement (20) are formed by stacked welding. Each frame includes two first frame bars (21) forming the long side of the cuboid structure and two second frame bars (22) forming the short side of the cuboid structure. It also includes rollers (50); each first frame (21) is provided with at least two rollers (50) with their axes perpendicular to the length direction of the first frame (21) along its length direction, the rollers (50) being partially embedded in the first frame (21) and their bottoms extending out of the bottom edge (23).

2. The support device as described in claim 1, characterized in that, The flange (11) is located at the opening end of the box body.

3. A support device as described in claim 2, characterized in that, The frame strips are enclosed to form a cuboid structure and connected as one unit. The layered welding is only located on the connecting edge (25) of each long frame strip of the cuboid structure.

4. A support device as described in claim 3, characterized in that, The first frame bar (21) is provided with extension walls (2111) at both ends of the bottom wall of the groove, which are adapted to extend outward relative to its two side walls; the second frame bar (22) is provided with abutment walls (221) at both ends of the groove bottom wall and the two side walls of the groove, respectively. The two extension walls (2111) of each first frame bar (21) are respectively adapted to abut against the abutment walls (221) of the two second frame bars (22) located on the same side and welded thereto to form the laminated weld; The free ends of the two slot sidewalls of each first frame bar (21) are respectively adapted to abut and weld to the free ends of the two corresponding slot sidewalls of the two second frame bars (22).

5. A support device as described in claim 4, characterized in that, Each frame strip has an upwardly protruding screw (241) spaced along its extension direction on its top edge (24). The flange (11) has a through hole (111) corresponding to each screw (241) so that the flange (11) is suitable for screwing with the top edge (24). The flange (11) is also welded to the top edge (24) at intervals. The bottom edge (23) is welded to the bottom edge of the load-bearing bottom wall (12) at intervals.

6. A support device as described in claim 5, characterized in that, The first frame bar (21) includes a body (211), several mounting parts (213) and several lifting parts (212), wherein the body (211) is a C-shaped channel steel; The bottom edge (23) of the first frame strip (21) is provided with a clearance hole (214) suitable for the roller (50) to extend out. Each mounting component (213) is distributed in the groove of the body (211) along the extension direction of the connecting edge (25) and welded to the body (211). It has a mounting wall (2131) opposite to the connecting edge (25) of the first frame bar (21). The mounting shaft of the roller (50) is fixedly connected to the bottom wall of the groove of the first frame bar (21) and the mounting wall (2131). Each lifting component (212) is distributed in the groove of the body (211) along the extension direction of the connecting edge (25) and welded to the body (211). The lifting component (212) is provided with a first hanging hole (2121), and the connecting edge (25) is provided with a second hanging hole (2112) at the position corresponding to the lifting component (212). Each mounting component (213) and each lifting component (212) of each first frame (21) are spaced apart along the extension direction of the connecting edge (25).

7. A support device as described in any one of claims 1-6, characterized in that, It also includes a liquid cooling plate (30) and at least two support beams (40) arranged along the length direction of the first frame bar (21) and extending along the length direction of the second frame bar (22); the base (10) is integrally formed by stamping process, and the load-bearing bottom wall (12) is provided with a plurality of reinforcing ribs (13) extending along the length direction of the second frame bar (22) at intervals along the extension direction of the first frame bar (21). The load-bearing bottom wall (12) is also adapted to support the liquid cooling plate (30) and be fixed to it; the support beams (40) are adapted to avoid the liquid cooling plate (30) being fixed to the base (10) and are used to support the energy storage cell (60).

8. An energy storage module (100), characterized in that, It employs the support device as described in any one of claims 1-7.

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