Air-cooled energy storage electric box

Abstract

The utility model relates to the technical field of energy storage electric boxes, in particular to an air-cooled energy storage electric box, which comprises an upper cover assembly, a module assembly, an air-cooled lower tray assembly, a high-voltage connector panel assembly and a CSC assembly. The opening edge of the upper cover assembly is locked with the air cooling lower tray assembly, the upper cover assembly and the air cooling lower tray assembly define a cavity, the module assembly and the CSC assembly are both arranged in the cavity, the high-voltage connector panel assembly is installed on the side wall of the upper cover assembly, and the module assembly is connected with the CSC assembly and the high-voltage connector panel assembly. While the sealing performance of the energy storage electric box is ensured, the structure of the electric box is optimized, the heat dissipation effect is improved, the temperature difference of the battery cells in the box is reduced, and the energy storage electric box is suitable for being used as an outdoor product.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage electric box technical field especially relates to a forced air cooling energy storage electric box. BACKGROUND

[0002] Traditional forced air cooling electric box uses fan plus harmonica tube form to carry out heat dissipation, such as the Chinese utility model patent with the application number CN202222944690.9 and the name of harmonica tube forced air cooling electric box of cooling electric core, not only complex structure, cost is higher, and the temperature difference of electric core in electric box is big, simultaneously adopts the design of IP20, and the protection level is low, is not suitable as outdoor product uses. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that: provide a forced air cooling energy storage electric box, simple structure, and the temperature difference of electric core in the box is small, satisfies IP66 protection, is suitable as outdoor product uses.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme that: a forced air cooling energy storage electric box, including upper cover subassembly, module subassembly, forced air cooling lower tray subassembly, high voltage connector faceplate subassembly and CSC subassembly;

[0005] The opening edge of upper cover subassembly is locked with forced air cooling lower tray subassembly, and the cavity is formed by the enclosure of upper cover subassembly and forced air cooling lower tray subassembly, and module subassembly and CSC subassembly are arranged in the cavity, and high voltage connector faceplate subassembly is installed on the side wall of upper cover subassembly, and module subassembly is connected with CSC subassembly and high voltage connector faceplate subassembly respectively.

[0006] Further, it further includes a sealing gasket, and the sealing gasket is arranged between the opening edge of the upper cover subassembly and the forced air cooling lower tray subassembly.

[0007] Further, it further includes a sheet metal pressing strip, and the opening edge of the upper cover subassembly has a folded edge, and the sheet metal pressing strip, the folded edge and the sealing gasket are locked by bolts.

[0008] Further, the top surface and the side wall of the upper cover subassembly are provided with reinforcing ribs.

[0009] Further, the side wall of the upper cover subassembly is provided with a mounting port and a lock hole arranged around the mounting port, and the high voltage connector faceplate subassembly is installed at the mounting port and locked with the lock hole by fasteners.

[0010] Further, the cross-sectional shape of the lock hole is rectangular.

[0011] Further, it further includes a fuse assembly, and the fuse assembly is arranged in the cavity, and the module subassembly includes a first module and a second module, and the fuse assembly is connected with the first module and the second module respectively.

[0012] Further, the first module and the second module each comprise an end plate, a steel belt, a battery cell, a PC sheet and a buffer pad, two end plates are respectively located at two ends of the steel belt, two or more battery cells are arranged between the two end plates, and the PC sheet and the buffer pad are arranged between the end plates and the battery cells.

[0013] Further, the module assembly, the fuse assembly and the CSC assembly are locked with the air-cooled lower tray assembly.

[0014] Further, the bottom of the air-cooled lower tray assembly is provided with a heat dissipation fin.

[0015] The wind-cooled energy storage electric box has the advantages that compared with a traditional wind-cooled electric box using a fan plus a harmonica tube type for heat dissipation, the wind-cooled energy storage electric box can guarantee sealing, optimizes the electric box structure, improves the heat dissipation effect, reduces the temperature difference of battery cells in the electric box, and is suitable for use as an outdoor product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic view of the wind-cooled energy storage electric box;

[0017] Figure 2 Fig. 1 is an exploded view of the wind-cooled energy storage electric box;

[0018] Figure 3 Fig. 2 is a structural schematic view of the upper cover assembly;

[0019] Figure 4 Fig. 3 is another structural schematic view of the upper cover assembly;

[0020] Figure 5 Fig. 4 is a structural schematic view of the module assembly;

[0021] Figure 6 Fig. 5 is another structural schematic view of the module assembly;

[0022] Figure 7 Fig. 6 is a structural schematic view of the CSC assembly;

[0023] Figure 8 Fig. 7 is a structural schematic view of the high-voltage connector panel assembly;

[0024] Figure 9 Fig. 8 is a structural schematic view of the air-cooled lower tray assembly;

[0025] Label Explanation:

[0026] 1, upper cover assembly; 11, folded edge; 12, bolt; 13, reinforcing rib; 14, mounting port; 15, lock hole; 2, module assembly; 21, first module; 211, end plate; 212, steel belt; 213, battery cell; 214, PC sheet; 215, buffer pad; 22, second module; 3, air-cooled lower tray assembly; 31, heat dissipation fin; 4, high-voltage connector panel assembly; 41, high-voltage connection port; 42, low-voltage interface; 5, CSC assembly; 6, sealing pad; 7, sheet metal pressing strip; 8, fuse assembly. DETAILED DESCRIPTION

[0027] To illustrate the technical content of the utility model, the purposes and effects achieved, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0028] Please refer to Figures 1 to 9 The utility model discloses an air-cooled energy storage electric box, which comprises an upper cover assembly 1, a module assembly 2, an air-cooled lower tray assembly 3, a high-voltage connector panel assembly 4 and a CSC assembly 5.

[0029] The opening edge of the upper cover assembly 1 is locked with the air-cooled lower tray assembly 3, and the upper cover assembly 1 and the air-cooled lower tray assembly 3 form a cavity, the module assembly 2 and the CSC assembly 5 are arranged in the cavity, the high-voltage connector panel assembly 4 is arranged on the side wall of the upper cover assembly 1, and the module assembly 2 is connected with the CSC assembly 5 and the high-voltage connector panel assembly 4.

[0030] From the above description, it can be seen that the utility model has the beneficial effects that the air-cooled energy storage electric box mainly comprises an upper cover assembly 1, a module assembly 2, an air-cooled lower tray assembly 3, a high-voltage connector panel assembly 4 and a CSC assembly 5, compared with the traditional air-cooled electric box using the fan plus the organ pipe form to dissipate heat, the utility model optimizes the electric box structure while ensuring the sealing, improves the heat dissipation effect, reduces the temperature difference of the battery cell 213 in the box, and is suitable for being used as an outdoor product.

[0031] In the optional embodiment, the sealing pad 6 is arranged between the opening edge of the upper cover assembly 1 and the air-cooled lower tray assembly 3.

[0032] From the above description, it can be seen that the sealing pad 6 plays a role in increasing the air tightness of the electric box.

[0033] In the optional embodiment, the sheet metal pressing strip 7 is further included, the opening edge of the upper cover assembly 1 is provided with the folded edge 11, and the sheet metal pressing strip 7, the folded edge 11 and the sealing pad 6 are locked by the bolt 12.

[0034] In the optional embodiment, the top surface and the side wall of the upper cover assembly 1 are provided with the reinforcing rib 13.

[0035] From the above description, in order to reduce the deformation of the upper cover after forming, reinforcing ribs 13 are added to the top, side and tail of the upper cover to reinforce the strength of the upper cover.

[0036] In an optional embodiment, the side wall of the upper cover assembly 1 is provided with a mounting port 14 and a lock hole 15 arranged around the mounting port 14, and the high-voltage connector panel assembly 4 is mounted at the mounting port 14 and fastened with the lock hole 15.

[0037] From the above description, the mounting port 14 for the high-voltage connector panel is arranged on the front surface of the upper cover.

[0038] In an optional embodiment, the cross-sectional shape of the lock hole 15 is rectangular.

[0039] From the above description, unlike the traditional round hole form of the fastening hole, a rectangular hole is used around the mounting port 14 to increase the adjustment amount of the upper cover during installation.

[0040] In an optional embodiment, a fuse assembly 8 is further included, which is arranged in the cavity, and the module assembly 2 includes a first module 21 and a second module 22, and the fuse assembly 8 is connected to the first module 21 and the second module 22, respectively.

[0041] From the above description, the internal circuit of the electric box is connected in sequence from the negative input, through the fuse, to the first module 21 and the second module 22, and then outputted through the positive electrode.

[0042] In an optional embodiment, the first module 21 and the second module 22 each include an end plate 211, a steel belt 212, a battery cell 213, a PC sheet 214 and a buffer pad 215, two end plates 211 are respectively located at both ends of the steel belt 212, two or more battery cells 213 are arranged between the two end plates 211, and the PC sheet 214 and the buffer pad 215 are arranged between the end plate 211 and the battery cell 213.

[0043] From the above description, the single-row module has one end plate 211 on each side of the module for fixing the module steel belt 212, and the end plate 211 and the battery cell 213 are arranged with a heat insulation pad and a PC sheet 214 on the adjacent surface to reduce the temperature influence of the end plate 211 on the adjacent battery cell 213 during operation and reduce the temperature difference between different battery cells 213 in the electric box. The buffer pad 215 is arranged between the battery cells 213 to absorb the thickness tolerance between different battery cells 213 and also to alleviate the swelling problem of the battery cells 213 caused by circulation. Unlike the traditional BUSBAR positioning with a wire harness isolation plate, the top of the module is fixed with the BUSBAR on the PC sheet 214 by rivets, which can reduce the mold opening cost during product development, shorten the development cost of parts, and also flexibly adapt to the module requirements of different string numbers.

[0044] In an optional embodiment, mica paper is arranged between the first module 21 and the second module 22.

[0045] As can be known from the above description, after the single-mode module group is pre-assembled, the mica paper is arranged between the first module 21 and the second module 22, so as to avoid the spread of the thermal runaway of the battery cell 213 to the adjacent module.

[0046] In an optional embodiment, the module assembly 2, the fuse assembly 8 and the CSC assembly 5 are all fixed with the air-cooled lower tray assembly 3.

[0047] As can be known from the above description, the fuse assembly 8 and the CSC assembly 5 are integrally fixed on the air-cooled tray.

[0048] In an optional embodiment, the bottom cloth of the air-cooled lower tray assembly 3 is provided with heat dissipation fins 31.

[0049] As can be known from the above description, the main body of the air-cooled lower tray assembly 3 is formed by extrusion, and after the formation, different lengths can be sawed according to the length requirement of the module, so as to adapt to the battery box with different string numbers, and the bottom of the lower tray is provided with the heat dissipation fins 31, and the fins in front of the air inlet are milled by CNC, so as to reduce the heat dissipation area of the battery cell 213 in front, thereby reducing the temperature difference between different battery cells 213.

[0050] In an optional embodiment, two high-voltage connection ports 41 and one low-voltage port 42 are arranged on the high-voltage connector panel assembly 4.

[0051] As can be known from the above description, two high-voltage connectors are arranged on the left side of the high-voltage connector panel assembly 4, which are used for connecting the power lines after the assembly.

[0052] Please refer to Figures 1 to 9 The embodiment one of the utility model is: an air-cooled energy storage battery box, which comprises an upper cover assembly 1, a module assembly 2, an air-cooled lower tray assembly 3, a high-voltage connector panel assembly 4 and a CSC assembly 5.

[0053] The opening edge of the upper cover assembly 1 is fixed with the air-cooled lower tray assembly 3, the upper cover assembly 1 and the air-cooled lower tray assembly 3 form a cavity, the module assembly 2 and the CSC assembly 5 are arranged in the cavity, the high-voltage connector panel assembly 4 is installed on the side wall of the upper cover assembly 1, and the module assembly 2 is connected with the CSC assembly 5 and the high-voltage connector panel assembly 4 respectively.

[0054] The sealing gasket 6 is arranged between the opening edge of the upper cover assembly 1 and the air-cooled lower tray assembly 3. The sealing gasket 6 is made of foamed silicone rubber. The metal pressing strip 7 is arranged on the opening edge of the upper cover assembly 1, and the opening edge of the upper cover assembly 1 is provided with a folded edge 11, and the metal pressing strip 7, the folded edge 11 and the sealing gasket 6 are locked by bolts 12. The upper cover is formed by PP suction molding. Since the PP material is soft, and the suction molding process is in the form of tensile deformation, the thickness of the sealing surface area of the upper cover is thin in the middle and thick around after molding. In order to ensure the air tightness of the whole electric box, the metal pressing strip 7 is used to press the sealing surface area, so that the sealing surface of the upper cover and the sealing gasket 6 are fully pressed, and the IP66 protection requirement is ensured. The top surface and the side wall of the upper cover assembly 1 are provided with reinforcing ribs 13. The side wall of the upper cover assembly 1 is provided with a mounting opening 14 and a lock hole 15 arranged around the mounting opening 14, and the high-voltage connector panel assembly 4 is mounted at the mounting opening 14 and locked with the lock hole 15 by fasteners. The cross section of the lock hole 15 is rectangular. The fuse assembly 8 is arranged in the cavity, the module assembly 2 comprises a first module 21 and a second module 22, and the fuse assembly 8 is connected with the first module 21 and the second module 22 respectively. The first module 21 and the second module 22 each comprise an end plate 211, a steel belt 212, a battery cell 213, a PC sheet 214 and a buffer pad 215. Two end plates 211 are arranged at two ends of the steel belt 212, two or more battery cells 213 are arranged between the two end plates 211, and the PC sheet 214 and the buffer pad 215 are arranged between the end plate 211 and the battery cell 213. The buffer pad 215 can be made of MPP or silicone rubber. The thickness of the buffer pad 215 is between 2.0 and 3.5. The module assembly 2, the fuse assembly 8 and the CSC assembly 5 are locked with the air-cooled lower tray assembly 3. The bottom cloth of the air-cooled lower tray assembly 3 is provided with heat dissipation fins 31.

[0055] In summary, the air-cooled energy storage electric box mainly comprises an upper cover assembly, a module assembly, an air-cooled lower tray assembly, a high-voltage connector panel assembly and a CSC assembly. Compared with the traditional air-cooled electric box using a fan and a mouthpiece tube for heat dissipation, the air-cooled energy storage electric box optimizes the structure of the electric box, improves the heat dissipation effect, reduces the temperature difference of the battery cells in the box, and is suitable for outdoor use.

[0056] The above is only an embodiment of the present application, and does not limit the patent range of the present application. Any equivalent transformation or direct or indirect application in related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. A wind-cooled energy storage electric box, characterized in that, The upper cover assembly, the module assembly, the air-cooled lower tray assembly, the high-voltage connector panel assembly and the CSC assembly are included. The opening edge of the upper cover assembly is locked with the air-cooled lower tray assembly, and the upper cover assembly and the air-cooled lower tray assembly form a cavity, the module assembly and the CSC assembly are arranged in the cavity, the high-voltage connector panel assembly is installed on the side wall of the upper cover assembly, and the module assembly is connected with the CSC assembly and the high-voltage connector panel assembly respectively.

2. The air-cooled energy storage electric tank according to claim 1, characterized in that, A sealing gasket is further included and arranged between the opening edge of the upper cover assembly and the air-cooled lower tray assembly.

3. The air-cooled energy storage electric tank according to claim 2, characterized in that, A metal pressing strip is further included, the opening edge of the upper cover assembly has a folded edge, and the metal pressing strip, the folded edge and the sealing gasket are locked by bolts.

4. The air-cooled energy storage electric tank according to claim 1, characterized in that, The top surface and the side wall of the upper cover assembly are provided with reinforcing ribs.

5. The air-cooled energy storage electric tank according to claim 1, characterized in that, The side wall of the upper cover assembly is provided with a mounting port and a lock hole arranged around the mounting port, the high-voltage connector panel assembly is installed at the mounting port, and the high-voltage connector panel assembly is locked with the lock hole by fasteners.

6. The air-cooled energy storage electric tank according to claim 5, characterized in that, The cross-sectional shape of the lock hole is rectangular.

7. The air-cooled energy storage electric tank of claim 1, wherein, A fuse assembly is further included and arranged in the cavity, the module assembly includes a first module and a second module, and the fuse assembly is connected with the first module and the second module respectively.

8. The air-cooled energy storage electric tank according to claim 7, characterized in that, The first module and the second module each include an end plate, a steel belt, a battery cell, a PC sheet and a buffer pad, two end plates are arranged at both ends of the steel belt, two or more battery cells are arranged between the two end plates, and the PC sheet and the buffer pad are arranged between the end plates and the battery cells.

9. The air-cooled energy storage electric tank according to claim 7, characterized in that, The module assembly, the fuse assembly and the CSC assembly are locked with the air-cooled lower tray assembly.

10. The air-cooled energy storage electric tank of claim 1, wherein, The bottom of the air-cooled lower tray assembly is provided with a heat dissipation fin.

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