Battery box

Abstract

The present disclosure provides a battery box, comprising a base assembly, a main control box assembly, at least one battery box assembly, and a plurality of pairs of connecting plates, wherein the plurality of battery box assemblies are stacked between the base assembly and the main control box assembly in the height direction; the base assembly comprises a base box body; the main control box assembly comprises a main control box body and a main control device arranged in the main control box body; each battery box assembly comprises a battery box body and a battery device arranged in the battery box body, a first maintenance opening is formed in the top of the battery box body, a wiring through hole is formed in the bottom of each of the battery box body and the main control box body, and the main control device is connected to the battery device by means of a cable penetrating through the wiring through hole; the base box body and the battery box body, the battery box body and the main control box body, and adjacent battery box bodies are fixedly connected by means of the paired connecting plates; and each pair of connecting plates are symmetrically arranged on two sides of the corresponding assembly in a first horizontal direction. The battery box provided in the present disclosure has a compact structure, low transport cost, attractive appearance and high safety, and cables are built in the battery box.

Description

battery box Technical Field

[0001] The present disclosure relates to the field of energy storage, and in particular, to a battery box. Background Art

[0002] Modular stacked battery boxes have larger overall dimensions, higher transportation costs, and poor aesthetics and safety.

[0003] Summary of the Invention

[0004] The present disclosure aims to provide a battery box and a semiconductor process equipment, wherein the battery box has a compact structure, low transportation cost, and high aesthetics and safety.

[0005] To achieve the above objectives, the present disclosure provides a battery box, comprising a base assembly, a main control box assembly, at least one battery box assembly, and a plurality of pairs of connection plates, wherein a plurality of the battery box assemblies are stacked in a height direction between the base assembly and the main control box assembly, the base assembly comprising a base box body, the main control box assembly comprising a main control box body and a main control device disposed in the main control box body, the battery box assembly comprising a battery box body and a battery device disposed in the battery box body, the top of the battery box body having a first maintenance opening, the bottoms of the battery box body and the main control box body both having wiring through-holes, the main control device and the battery device being connected via cables passing through the wiring through-holes;

[0006] The base box and the battery box, the battery box and the main control box, and adjacent battery boxes are fixedly connected via pairs of connecting plates, and each pair of connecting plates is symmetrically arranged on both sides of the corresponding component along the first horizontal direction.

[0007] As an embodiment of the present disclosure, a first sealing strip surrounding the first maintenance opening is provided on the top of the battery box, and the first sealing strip seals the gap between the top of the battery box and the bottom of the box above it.

[0008] As one embodiment of the present disclosure, the top of the base box body has a second maintenance opening, and the top of the base box body is provided with a second sealing strip surrounding the second maintenance opening, and the second sealing strip seals the gap between the top of the base box body and the bottom of the battery box body above it.

[0009] As one embodiment of the present disclosure, the top of the battery case has a pair of first alignment portions extending along the first horizontal direction, and the two first alignment portions are respectively located on both sides of the first maintenance opening along a second horizontal direction, the second horizontal direction intersecting the first horizontal direction, and the bottom of the battery case has a pair of second alignment portions extending along the first horizontal direction;

[0010] The top of the base box has a pair of third alignment portions extending along the first horizontal direction, and the two third alignment portions are respectively located on both sides of the second maintenance opening along the second horizontal direction; the bottom of the main control box has a pair of fourth alignment portions extending along the first horizontal direction;

[0011] The first alignment portion is located between the two second alignment portions of the corresponding battery box or between the two fourth alignment portions of the corresponding main control box; the third alignment portion is located between the two second alignment portions of the corresponding battery box.

[0012] As an embodiment of the present disclosure, the spacing distance between each pair of the first alignment parts is consistent with the spacing distance between the two third alignment parts, and the spacing distance between each pair of the second alignment parts is consistent with the spacing distance between the two fourth alignment parts.

[0013] As an embodiment of the present disclosure, the battery box includes a first bottom plate, a pair of first side plates, and a pair of first end plates, wherein the two first side plates are connected to both sides of the first bottom plate along the second horizontal direction, and the first bottom plate and the first side plates are formed as one piece, and the two first end plates are fixedly connected to both sides of the first bottom plate along the first horizontal direction, and the first side plates and the first end plates surround each other to form the first maintenance opening;

[0014] The base box includes a second bottom plate, a pair of second side plates and a pair of second end plates, the two second side plates are connected to both sides of the second bottom plate along the second horizontal direction, and the second bottom plate and the second side plates are formed as one piece, the two second end plates are fixedly connected to both sides of the second bottom plate along the first horizontal direction, and the second side plates and the second end plates surround to form the second maintenance opening.

[0015] As an embodiment of the present disclosure, the main control box includes a top cover, a third bottom plate, a pair of third side plates and a pair of third end plates, the two third side plates are connected to both sides of the third bottom plate along the second horizontal direction, and the third bottom plate and the third side plates are formed as one piece, the two third end plates are fixedly connected to both sides of the third bottom plate along the first horizontal direction, the third side plates and the third end plates surround to form a third maintenance opening, and the top cover seals the third maintenance opening.

[0016] As an embodiment of the present disclosure, the top of the third side plate and the third end plate is provided with a third sealing strip surrounding the third maintenance opening, and the third sealing strip seals the gap between the top of the third side plate and the third end plate and the top cover.

[0017] As an embodiment of the present disclosure, the first alignment portion is formed at the top of the first side panel, the bottom of the first side panel extends to one side of the bottom of the first bottom panel and forms the second alignment portion; the third alignment portion is formed at the top of the second side panel; the bottom of the third side panel extends to one side of the bottom of the third bottom panel and forms the fourth alignment portion.

[0018] As an embodiment of the present disclosure, the battery box is formed with a pair of first mounting holes and a pair of second mounting holes on both sides along the first horizontal direction, the base box is formed with a pair of third mounting holes on both sides along the first horizontal direction, and the main control box is formed with a pair of fourth mounting holes on both sides along the first horizontal direction;

[0019] The connecting plate has a pair of first alignment holes and a pair of second alignment holes, the positions of the first alignment holes correspond one-to-one to the positions of the second mounting holes of the corresponding battery box or one-to-one to the positions of the fourth mounting holes of the corresponding main control box; the positions of the second alignment holes correspond one-to-one to the positions of the first mounting holes of the corresponding battery box or one-to-one to the positions of the third mounting holes of the corresponding base box; the connecting plate is fixedly connected to the corresponding box by fasteners that pass through the respective alignment holes and mounting holes one-to-one.

[0020] The battery box provided by the present disclosure includes a base assembly, a main control box assembly, and at least one battery box assembly stacked therebetween. The boxes of adjacent assemblies are fixedly connected by connecting plates on both sides. In actual use, the connecting plates can be removed as needed and the number of stacked battery box assemblies can be changed to flexibly adjust the output power of the battery box. Furthermore, the base box and the battery box, the battery box and the main control box, and adjacent battery boxes are all fixedly connected by paired connecting plates. The connecting plates are attached to both sides of each box, which can effectively reduce the overall size of the battery box, improve the compactness of the battery box structure, and reduce the transportation cost of the battery box. Furthermore, the connecting plates can ensure that the surfaces of the upper and lower boxes to which they are attached are flush with each other, thereby ensuring that the outer surfaces of the multiple boxes are coplanar, improving the overall aesthetics of the battery box.

[0021] In addition, the top of the battery box has a first maintenance opening, and the bottom of the battery box and the main control box both have wiring holes. The main control device and the battery device are connected by cables passing through the wiring holes. Therefore, regardless of whether the battery box adopts the top or bottom wiring method, the cables can be connected from the inside of the battery box to the external wiring interface through multiple wiring holes, avoiding the external placement of the cables, thereby improving the overall aesthetics and safety of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] FIG1 is a schematic structural diagram of a battery box provided in an embodiment of the present disclosure;

[0024] FIG2 is a side view of a battery box provided in an embodiment of the present disclosure along a second horizontal direction;

[0025] FIG3 is a side view of a battery box provided in an embodiment of the present disclosure along a first horizontal direction;

[0026] FIG4 is a schematic structural diagram of a battery box assembly in a battery box provided in an embodiment of the present disclosure;

[0027] FIG5 is a side view of a battery box assembly in a battery box provided in an embodiment of the present disclosure along a first horizontal direction;

[0028] FIG6 is a schematic structural diagram of a base assembly in a battery box provided in an embodiment of the present disclosure;

[0029] FIG7 is a side view of a base assembly in a battery box provided in an embodiment of the present disclosure along a first horizontal direction;

[0030] FIG8 is a schematic structural diagram of a main control box assembly in a battery box provided in an embodiment of the present disclosure;

[0031] FIG9 is a side view of the main control box assembly in the battery box provided by an embodiment of the present disclosure along a first horizontal direction.

[0032] Explanation of the accompanying figures: Battery box 100; first maintenance opening 101; first bottom plate 110; first alignment groove 111; first side plate 120; first alignment portion 121; second alignment portion 122; first end plate 130; first handle groove 131; first sealing strip 140; first mounting hole 151; second mounting hole 152; base box 200; second maintenance opening 201; second bottom plate 210; second side plate 220; third alignment portion 221; second end plate 230; second sealing strip 240; third mounting hole 250; main control box 300; third maintenance opening 301; third Bottom plate 310; second alignment groove 311; third side plate 320; fourth alignment portion 321; third end plate 330; second handle groove 331; top cover 340; top plate 341; mounting plate 342; third alignment hole 343; third sealing strip 350; fourth mounting hole 360; connecting plate 400; first alignment hole 410; second alignment hole 420; battery device 10; first mounting plate 11; battery module 12; battery management slave unit 13; master control unit 20; second mounting plate 21; power control module 22; battery management master unit 23; wiring through hole 30. DETAILED DESCRIPTION

[0033] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0034] With the development of modern industry, the global energy crisis and air pollution are becoming increasingly prominent. Traditional fuel energy sources are declining, and the harm they cause to the environment is becoming increasingly prominent. The world is turning its attention to renewable energy, hoping that it can transform humanity's energy structure and maintain long-term sustainable development. As a result, the application of power batteries is becoming increasingly widespread. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment, aerospace, and many other fields. As the application of batteries continues to expand, their market demand is also growing.

[0035] In order to facilitate flexible adjustment of the number of battery packs according to actual needs, modular stacked battery boxes have become a common power supply solution. Modular stacked battery boxes usually include a main control box and multiple battery boxes. The main control box and multiple battery boxes are stacked and detachably fixedly connected through connectors such as pins. The number of battery boxes can be flexibly increased or decreased according to needs.

[0036] However, in the relevant modular stacking battery boxes, the boxes are connected to each other through connectors and positioning pins, and the connector and positioning pin structures are all convex structures, which leads to a larger overall size of the battery box and higher transportation costs; and the box is generally a sheet metal part, and processing errors can easily cause the appearance of the two battery boxes to be not in the same plane after stacking, affecting the overall aesthetics of the battery box; in addition, the external wiring interface of the battery box is on the side of the main control box at the top, and the wiring method is top wiring. When the system requires bottom wiring, the cable needs to be external, further affecting the overall aesthetics and safety of the battery box.

[0037] In order to solve the above technical problems, the embodiment of the present disclosure provides a battery box, as shown in Figures 1 to 3, the battery box includes a base assembly, a main control box assembly, at least one battery box assembly and multiple pairs of connecting plates 400, multiple battery box assemblies are stacked in the height direction and arranged between the base assembly and the main control box assembly, the base assembly includes a base box body 200, as shown in Figures 4 to 5, the main control box assembly includes a main control box body 300 and a main control device 20 arranged in the main control box body 300, as shown in Figures 8 to 9, the battery box assembly includes a battery box body 100 and a main control device 20 arranged in the battery box The battery device 10 in the body 100 has a first maintenance opening 101 on the top of the battery box 100, and the bottom of the battery box 100 and the main control box 300 both have wiring holes 30. The main control device 20 and the battery device 10 are connected by cables passing through the wiring holes 30; the base box 200 and the battery box 100, the battery box 100 and the main control box 300, and the adjacent battery boxes 100 are fixedly connected by pairs of connecting plates 400, and each pair of connecting plates 400 is symmetrically arranged on both sides of the corresponding components along the first horizontal direction.

[0038] The battery box provided in the embodiment of the present disclosure includes a base assembly, a main control box assembly, and at least one battery box assembly stacked therebetween. The boxes of adjacent assemblies are fixedly connected by connecting plates 400 on both sides. In actual use, the connecting plates 400 can be removed as needed and the number of stacked battery box assemblies can be changed to flexibly adjust the output power of the battery box. Furthermore, the base box 200 and the battery box 100, the battery box 100 and the main control box 300, and the adjacent battery boxes 100 are all fixedly connected by paired connecting plates 400. The connecting plates 400 are attached to both sides of each box, which can effectively reduce the overall size of the battery box, improve the compactness of the battery box structure, and reduce the transportation cost of the battery box. Furthermore, the connecting plates 400 can ensure that the surfaces of the upper and lower boxes to which they are attached are flush with each other, thereby ensuring that the outer surfaces of the multiple boxes are coplanar, thereby improving the overall aesthetics of the battery box.

[0039] In addition, the top of the battery box 100 has a first maintenance opening 101, and the bottom of the battery box 100 and the main control box 300 both have wiring holes 30. The main control device 20 and the battery device 10 are connected by cables passing through the wiring holes 30. Therefore, regardless of whether the battery box adopts an upper or lower wiring outlet method, the cables can be connected from the inside of the battery box to the external wiring interface through multiple wiring holes 30, avoiding the external placement of the cables, thereby improving the overall aesthetics and safety of the battery box.

[0040] Specifically, the base housing 200 and the battery housing 100 are fixedly connected via a pair of connecting plates 400, and the pair of connecting plates 400 are symmetrically arranged on either side of the base housing 200 and the battery housing 100 in the first horizontal direction. The battery housing 100 and the main control housing 300 are fixedly connected via a pair of connecting plates 400, and the pair of connecting plates 400 are symmetrically arranged on either side of the battery housing 100 and the main control housing 300 in the first horizontal direction. Adjacent battery housings 100 are fixedly connected via a pair of connecting plates 400, and the pair of connecting plates 400 are symmetrically arranged on either side of the adjacent battery housings 100 in the first horizontal direction.

[0041] As an embodiment of the present disclosure, as shown in Figures 4 and 5, the battery device 10 includes a first mounting plate 11, a battery module 12 and a battery management slave control unit 13. The first mounting plate 11 is fixedly arranged in the battery box 100, and the battery module 12 and the battery management slave control unit 13 are both fixedly arranged on the first mounting plate 11.

[0042] That is to say, the first mounting plate 11 is arranged in the battery box 100 and fixed to the battery box 100, and the battery module 12 and the battery management slave control unit 13 are both arranged on the first mounting plate 11 and fixed to the first mounting plate 11, so that the battery module 12 and the battery management slave control unit 13 are both fixed to the battery box 100 through the first mounting plate 11.

[0043] As an embodiment of the present disclosure, as shown in Figures 8 to 9, the main control device 20 includes a second mounting plate 21, a power control module 22 and a battery management main control unit 23. The second mounting plate 21 is fixedly set in the main control box 300, and the power control module 22 and the battery management main control unit 23 are both fixedly set on the second mounting plate 21.

[0044] That is to say, the second mounting plate 21 is arranged in the main control box 300 and is fixed to the main control box 300, and the power control module 22 and the battery management main control unit 23 are both arranged on the second mounting plate 21 and are fixed to the second mounting plate 21, so that the power control module 22 and the battery management main control unit 23 are both fixed to the battery box 100 through the second mounting plate 21.

[0045] In order to ensure the sealing and waterproof performance of the battery box, as an embodiment of the present disclosure, as shown in Figures 4 and 5, a first sealing strip 140 surrounding the first maintenance opening 101 is provided on the top of the battery box 100. The first sealing strip 140 seals the gap between the top of the battery box 100 and the bottom of the box above it.

[0046] For example, if another battery case 100 is stacked on top of one battery case 100, the first sealing strip 140 provided on the top of the lower battery case 100 is used to seal the gap between the top of the lower battery case 100 and the bottom of the upper battery case 100. For example, if a main control case 300 is stacked on top of one battery case 100, the first sealing strip 140 provided on the top of the lower battery case 100 is used to seal the gap between the top of the lower battery case 100 and the bottom of the upper main control case 300.

[0047] As shown in Figures 6 and 7, the top of the base box 200 has a second maintenance opening 201, and the top of the base box 200 is provided with a second sealing strip 240 surrounding the second maintenance opening 201. The second sealing strip 240 seals the gap between the top of the base box 200 and the bottom of the battery box 100 above it.

[0048] In the related technical solutions, the connector part connecting the boxes needs to be made into a separate waterproof structure, which is relatively complicated. However, in the embodiment of the present disclosure, the boxes are connected only through the wiring through-hole 30 and the maintenance openings (for example, the first maintenance opening 101 and the second maintenance opening 201). Therefore, only the maintenance openings need to be sealed with sealing strips, which can ensure the sealing and waterproof performance of the entire battery box, and further ensure the safety of the battery box.

[0049] In order to further ensure the alignment accuracy between the various boxes of the battery box, so as to ensure the structural stability and aesthetics of the battery box, as an embodiment of the present disclosure, as shown in Figures 4 to 5, the top of the battery box 100 has a pair of first alignment parts 121 extending along the first horizontal direction, and the two first alignment parts 121 are respectively located on both sides of the first maintenance opening 101 along the second horizontal direction, and the second horizontal direction intersects with the first horizontal direction. The bottom of the battery box 100 has a pair of second alignment parts 122 extending along the first horizontal direction; as shown in Figures 6 to 7, the base box 200 The top has a pair of third alignment portions 221 extending along the first horizontal direction, and the two third alignment portions 221 are respectively located on both sides of the second maintenance opening 201 along the second horizontal direction; as shown in Figures 8 to 9, the bottom of the main control box 300 has a pair of fourth alignment portions 321 extending along the first horizontal direction; the first alignment portion 121 is located between the two second alignment portions 122 of the corresponding battery box 100 or between the two fourth alignment portions 321 of the corresponding main control box 300; the third alignment portion 221 is located between the two second alignment portions 122 of the corresponding battery box 100.

[0050] In one embodiment of the present disclosure, the two first alignment portions 121 on the top of the battery box 100 are inserted between the two corresponding second alignment portions 122 or the two fourth alignment portions 321 above them, and the two third alignment portions 221 on the top of the base box 200 are inserted between the two corresponding second alignment portions 122 above them, thereby utilizing the locking limit between the alignment portions to ensure the alignment accuracy between the multiple boxes along the second horizontal direction, thereby ensuring the structural stability and aesthetics of the battery box.

[0051] For example, if another battery case 100 is stacked on top of one battery case 100, the two first alignment portions 121 at the top of the lower battery case 100 are inserted between the two second alignment portions 122 at the bottom of the upper battery case 100. For example, if a main control case 300 is stacked on top of one battery case 100, the two first alignment portions 121 at the top of the lower battery case 100 are inserted between the two fourth alignment portions 321 at the bottom of the upper main control case 300.

[0052] As an embodiment of the present disclosure, the spacing distance between each pair of first alignment portions 121 is consistent with the spacing distance between the two third alignment portions 221, and the spacing distance between each pair of second alignment portions 122 is consistent with the spacing distance between the two fourth alignment portions 321, thereby unifying the shape specifications of the alignment portions at the top and bottom of different boxes, thereby improving the convenience of configuring the number and types of boxes in the battery box.

[0053] As an embodiment of the present disclosure, as shown in Figures 4 to 5, the battery box 100 includes a first bottom plate 110, a pair of first side plates 120 and a pair of first end plates 130, the two first side plates 120 are connected to both sides of the first bottom plate 110 along the second horizontal direction, and the first bottom plate 110 and the first side plate 120 are formed as one piece, the two first end plates 130 are fixedly connected to both sides of the first bottom plate 110 along the first horizontal direction, and the first side plates 120 and the first end plates 130 surround to form a first maintenance opening 101; as shown in Figures 6 to 7, the base box 200 includes a second bottom plate 210, a pair of second side plates 220 and a pair of second end plates 230, the two second side plates 220 are connected to both sides of the second bottom plate 210 along the second horizontal direction, and the second bottom plate 210 and the second side plates 220 are formed as one piece, the two second end plates 230 are fixedly connected to both sides of the second bottom plate 210 along the first horizontal direction, and the second side plates 220 and the second end plates 230 surround to form a second maintenance opening 201.

[0054] As an embodiment of the present disclosure, the first bottom plate 110 and the first side plate 120 are integrally formed aluminum extrusion profiles, and the second bottom plate 210 and the second side plate 220 are integrally formed aluminum extrusion profiles.

[0055] To facilitate carrying the battery box 100 , as one embodiment of the present disclosure, as shown in FIG. 4 and FIG. 5 , a portion of the first end plate 130 is recessed into the battery box 100 to form a first handle groove 131 .

[0056] To further facilitate the transportation of the battery box 100 , as one embodiment of the present disclosure, the two paired first end plates 130 of the battery box 100 are both formed with a first handle groove 131 .

[0057] In order to further ensure the alignment accuracy between the various boxes of the battery box, so as to ensure the structural stability and aesthetics of the battery box, as an embodiment of the present disclosure, as shown in Figures 4 to 5, a pair of first alignment grooves 111 extending along the first horizontal direction are formed at the bottom of the first base plate 110, and the first alignment portion 121 and the third alignment portion 221 are both accommodated in the corresponding first alignment grooves 111 one by one.

[0058] For example, if one battery case 100 is stacked on top of another battery case 100, the two first alignment portions 121 at the top of the lower battery case 100 are correspondingly received in the two first alignment grooves 111 at the bottom of the upper battery case 100. For example, if one battery case 100 is stacked on a base case 200, the two third alignment portions 221 at the top of the lower base case 200 are correspondingly received in the two first alignment grooves 111 at the bottom of the upper battery case 100.

[0059] As one embodiment of the present disclosure, as shown in FIG. 5 , the sidewall of the first alignment groove 111 is in contact with the side surface of the second alignment portion 122 .

[0060] That is, a side wall of the first alignment groove 111 serves as a side surface of the second alignment portion 122 , and the first alignment groove 111 and the second alignment portion 122 are continuously formed without any spacing structure in between.

[0061] As an embodiment of the present disclosure, as shown in Figures 8 to 9, the main control box 300 includes a top cover 340, a third bottom plate 310, a pair of third side plates 320 and a pair of third end plates 330. The two third side plates 320 are connected to both sides of the third bottom plate 310 along the second horizontal direction, and the third bottom plate 310 and the third side plates 320 are formed as one body. The two third end plates 330 are fixedly connected to both sides of the third bottom plate 310 along the first horizontal direction. The third side plates 320 and the third end plates 330 surround to form a third maintenance opening 301, and the top cover 340 seals the third maintenance opening 301.

[0062] As an embodiment of the present disclosure, the third bottom plate 310 and the third side plate 320 are integrally formed aluminum extrusion profiles.

[0063] To facilitate carrying the main control box 300 , as one embodiment of the present disclosure, as shown in FIG. 9 , a portion of the third end plate 330 is recessed into the main control box 300 to form a second handle groove 331 .

[0064] To further facilitate the transportation of the main control box 300 , as one embodiment of the present disclosure, the two third end plates 330 of the main control box 300 are both formed with a second handle groove 331 .

[0065] As an embodiment of the present disclosure, as shown in FIG. 4 and FIG. 8 , the wiring through hole 30 extends along the second horizontal direction, thereby ensuring the wiring space of the wiring through hole 30 without increasing the first horizontal dimension (width) of the battery box.

[0066] As an embodiment of the present disclosure, as shown in Figures 4 and 8, the two side edges of the wiring through hole 30 along the second horizontal direction are arc-shaped edges, that is, the wiring through hole 30 is a waist-shaped through hole, thereby avoiding the sharp structure on the inner edge of the wiring through hole 30 to scratch the cable, further ensuring the safety of the battery box.

[0067] In order to ensure the sealing and waterproof performance of the battery box, as an embodiment of the present disclosure, as shown in Figures 8 to 9, the top of the third side plate 320 and the third end plate 330 is provided with a third sealing strip 350 surrounding the third maintenance opening 301. The third sealing strip 350 seals the gap between the top of the third side plate 320 and the third end plate 330 and the top cover 340.

[0068] In order to further ensure the alignment accuracy between the various boxes of the battery box and to ensure the structural stability and aesthetics of the battery box, as an embodiment of the present disclosure, as shown in Figure 9, a pair of second alignment grooves 311 extending along the first horizontal direction are formed at the bottom of the third base plate 310, and the first alignment parts 121 of the battery box 100 below the main control box 300 are accommodated in the second alignment grooves 311 one by one.

[0069] As one embodiment of the present disclosure, as shown in FIG. 9 , the sidewall of the second alignment groove 311 is connected to the side surface of the fourth alignment portion 321 .

[0070] That is, a side wall of the second alignment groove 311 serves as a side surface of the fourth alignment portion 321 , and the second alignment groove 311 and the fourth alignment portion 321 are continuously formed without any spacing structure in between.

[0071] As an embodiment of the present disclosure, as shown in Figures 4 to 5, a first alignment portion 121 is formed at the top of the first side plate 120, and the bottom of the first side plate 120 extends to the bottom side of the first bottom plate 110 and forms a second alignment portion 122; as shown in Figures 6 to 7, a third alignment portion 221 is formed at the top of the second side plate 220; as shown in Figure 9, the bottom of the third side plate 320 extends to the bottom side of the third bottom plate 310 and forms a fourth alignment portion 321.

[0072] As an embodiment of the present disclosure, as shown in Figures 4 to 5, the battery box 100 is formed with a pair of first mounting holes 151 and a pair of second mounting holes 152 on both sides along the first horizontal direction. As shown in Figures 6 to 7, the base box 200 is formed with a pair of third mounting holes 250 on both sides along the first horizontal direction. As shown in Figure 9, the main control box 300 is formed with a pair of fourth mounting holes 360 on both sides along the first horizontal direction. As shown in Figures 1 and 3, the connecting plate 400 has a pair of first alignment holes 410 and a pair of second alignment holes 420. The first alignment holes 41 The position of 0 corresponds one-to-one to the position of the second mounting hole 152 of the corresponding battery box 100 or one-to-one to the position of the fourth mounting hole 360 ​​of the corresponding main control box 300; the position of the second alignment hole 420 corresponds one-to-one to the position of the first mounting hole 151 of the corresponding battery box 100 or one-to-one to the position of the third mounting hole 250 of the corresponding base box 200; the connecting plate 400 is fixedly connected to the corresponding box by fasteners that pass through each alignment hole and mounting hole one-to-one (in order to facilitate observation of the alignment holes and mounting holes, the fasteners are omitted in the drawings).

[0073] For example, a battery case 100 is stacked on a base case 200, and the second alignment hole 420 of the connecting plate 400 corresponds one-to-one to the third mounting hole 250 of the base case 200 located below, and the first alignment hole 410 corresponds one-to-one to the second mounting hole 152 of the battery case 100 located above. The fasteners pass through the second alignment holes 420 and the third mounting holes 250 one-to-one to connect the connecting plate 400 to the base case 200 located below, and the fasteners pass through the first alignment holes 410 and the second mounting holes 152 one-to-one to connect the connecting plate 400 to the battery case 100 located above, thereby connecting the base case 200 and the battery case 100 stacked on the base case 200 through the connecting plate 400.

[0074] For example, if one battery case 100 is stacked on another battery case 100, the second alignment hole 420 of the connecting plate 400 corresponds one-to-one to the first mounting hole 151 of the battery case 100 below, and the first alignment hole 410 corresponds one-to-one to the second mounting hole 152 of the battery case 100 above. Fasteners pass through the second alignment holes 420 and the first mounting holes 151 one-to-one to connect the connecting plate 400 to the battery case 100 below, and fasteners pass through the first alignment holes 410 and the second mounting holes 152 one-to-one to connect the connecting plate 400 to the battery case 100 above, thereby connecting one battery case 100 to another battery case 100 stacked on the one battery case 100 through the connecting plate 400.

[0075] For example, the main control box 300 is stacked on a battery box 100, and the second alignment hole 420 of the connecting plate 400 corresponds one-to-one to the first mounting hole 151 of the battery box 100 located below, and the first alignment hole 410 corresponds one-to-one to the fourth mounting hole 360 ​​of the main control box 300 located above. The fasteners pass through each second alignment hole 420 and the first mounting hole 151 one-to-one to connect the connecting plate 400 to the battery box 100 located below, and the fasteners pass through each first alignment hole 410 and the fourth mounting hole 360 ​​one-to-one to connect the connecting plate 400 to the main control box 300 located above, thereby connecting a battery box 100 and the main control box 300 stacked on the battery box 100 through the connecting plate 400.

[0076] As an embodiment of the present disclosure, as shown in FIG. 1 and FIG. 3 , the distance between the two first alignment holes 410 in a pair is smaller than the distance between the two second alignment holes 420 in a pair.

[0077] As an embodiment of the present disclosure, as shown in Figure 8, the third side panel 320 is formed with fifth mounting holes on both sides along the first horizontal direction, the top cover 340 includes a top panel 341 and a mounting plate 342 surrounding the top panel 341 and forming an integral body with the top panel 341, the mounting plate 342 is sleeved on the outer side of the third side panel 320 and the third end panel 330, and a pair of third alignment holes 343 are formed on both sides of the mounting plate 342 along the first horizontal direction, and the top cover 340 is fixedly connected to the third side panel 320 by fasteners that pass through each third alignment hole 343 and the fifth mounting hole one by one.

[0078] As an embodiment of the present disclosure, the fastener may be a screw.

[0079] In summary, the battery box provided by the embodiment of the present disclosure has a compact structure, low transportation cost, high aesthetics and safety.

[0080] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A battery box, wherein: The invention comprises a base assembly, a main control box assembly, at least one battery box assembly and a plurality of pairs of connecting plates, wherein a plurality of the battery box assemblies are stacked and arranged between the base assembly and the main control box assembly in a height direction, the base assembly comprises a base box body, the main control box assembly comprises a main control box body and a main control device arranged in the main control box body, the battery box assembly comprises a battery box body and a battery device arranged in the battery box body, the top of the battery box body has a first maintenance opening, the bottoms of the battery box body and the main control box body both have wiring through holes, and the main control device and the battery device are connected by cables passing through the wiring through holes; The base box and the battery box, the battery box and the main control box, and the adjacent battery boxes are fixedly connected via pairs of connecting plates, and each pair of connecting plates is symmetrically arranged on both sides of the corresponding component along the first horizontal direction.

2. The battery box according to claim 1, wherein: A first sealing strip surrounding the first maintenance opening is disposed on the top of the battery box, and the first sealing strip seals a gap between the top of the battery box and the bottom of the box above it.

3. The battery box according to claim 2, wherein: The top of the base box has a second maintenance opening, and the top of the base box is provided with a second sealing strip surrounding the second maintenance opening, and the second sealing strip seals the gap between the top of the base box and the bottom of the battery box above it.

4. The battery box according to claim 3, wherein: The top of the battery box has a pair of first alignment parts extending along the first horizontal direction, and the two first alignment parts are respectively located on both sides of the first maintenance opening along the second horizontal direction, the second horizontal direction intersects with the first horizontal direction, and the bottom of the battery box has a pair of second alignment parts extending along the first horizontal direction; The top of the base box has a pair of third alignment parts extending along the first horizontal direction, and the two third alignment parts are respectively located on both sides of the second maintenance opening along the second horizontal direction; the bottom of the main control box has a pair of fourth alignment parts extending along the first horizontal direction; The first alignment portion is located between the two second alignment portions of the corresponding battery box or between the two fourth alignment portions of the corresponding main control box; the third alignment portion is located between the two second alignment portions of the corresponding battery box.

5. The battery box according to claim 4, wherein: The spacing distance between each pair of the first alignment parts is consistent with the spacing distance between the two third alignment parts, and the spacing distance between each pair of the second alignment parts is consistent with the spacing distance between the two fourth alignment parts.

6. The battery box according to claim 4, wherein: The battery box includes a first bottom plate, a pair of first side plates and a pair of first end plates, the two first side plates are connected to the two sides of the first bottom plate along the second horizontal direction, and the first bottom plate and the first side plates are formed as one body, the two first end plates are fixedly connected to the two sides of the first bottom plate along the first horizontal direction, and the first side plates and the first end plates surround to form the first maintenance opening; The base box includes a second bottom plate, a pair of second side plates and a pair of second end plates, the two second side plates are connected to the two sides of the second bottom plate along the second horizontal direction, and the second bottom plate and the second side plates are formed as a whole, the two second end plates are fixedly connected to the two sides of the second bottom plate along the first horizontal direction, and the second side plates and the second end plates surround to form the second maintenance opening.

7. The battery box according to claim 6, wherein: The main control box includes a top cover, a third bottom plate, a pair of third side plates and a pair of third end plates, the two third side plates are connected to the two sides of the third bottom plate along the second horizontal direction, and the third bottom plate and the third side plates are formed as a whole, the two third end plates are fixedly connected to the two sides of the third bottom plate along the first horizontal direction, the third side plates and the third end plates surround to form a third maintenance opening, and the top cover seals the third maintenance opening.

8. The battery box according to claim 7, wherein: The third side plate and the top of the third end plate are provided with a third sealing strip surrounding the third maintenance opening, and the third sealing strip seals the gap between the top of the third side plate and the third end plate and the top cover.

9. The battery box according to claim 7, wherein: The first alignment portion is formed at the top of the first side plate, and the bottom of the first side plate extends to the bottom side of the first bottom plate to form the second alignment portion; the third alignment portion is formed at the top of the second side plate; the bottom of the third side plate extends to the bottom side of the third bottom plate to form the fourth alignment portion.

10. The battery box according to any one of claims 1 to 9, wherein: The battery box is formed with a pair of first mounting holes and a pair of second mounting holes on both sides along the first horizontal direction, the base box is formed with a pair of third mounting holes on both sides along the first horizontal direction, and the main control box is formed with a pair of fourth mounting holes on both sides along the first horizontal direction; The connecting plate has a pair of first alignment holes and a pair of second alignment holes, the positions of the first alignment holes correspond one-to-one with the positions of the second mounting holes of the corresponding battery box or one-to-one with the positions of the fourth mounting holes of the corresponding main control box; the positions of the second alignment holes correspond one-to-one with the positions of the first mounting holes of the corresponding battery box or one-to-one with the positions of the third mounting holes of the corresponding base box; the connecting plate is fixedly connected to the corresponding box by fasteners that pass through the alignment holes and mounting holes one-to-one.

Images