Battery pack shell, battery pack and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack shell, a battery pack and electric equipment. The battery pack shell comprises a tray, a containing cavity and a power distribution cavity are formed in the tray, and the containing cavity is used for containing a battery; the separating piece is arranged in the tray so as to separate the accommodating cavity from the power distribution cavity; the sealing cover covers the accommodating cavity and the power distribution cavity, the sealing cover is provided with an access hole, and the access hole is opposite to the power distribution cavity; the cover plate covers the access hole; a first sealing piece is arranged between the cover plate and the sealing cover and surrounds the access hole, and a second sealing piece is arranged between the partition piece and the sealing cover; the fixing piece sequentially penetrates through the cover plate, the first sealing piece, the sealing cover and the second sealing piece to be fixedly connected to the partition piece. When follow-up maintenance operation is needed, the battery pack can be overhauled only by dismantling the cover plate, and the sealing connection effect is improved through the arrangement of the first sealing piece and the second sealing piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery pack shell, a battery pack and an electric device. BACKGROUND

[0002] At present, with the continuous development of electric vehicles, the requirements for battery packs in electric vehicles are also increasing, both requiring compact structure and high integration, and requiring good sealing to be unaffected by the outside world and to ensure the safety of the battery pack. Usually, batteries are contained by a tray and an upper cover, and are adhesively fixed to improve the sealing effect. However, there are many key components and vulnerable parts in the battery pack, and when the battery pack is damaged, the battery pack can only be removed as a whole for maintenance, which is cumbersome to operate and has low efficiency in troubleshooting and maintenance. Therefore, in the prior art, a maintenance opening is reserved on the tray or the upper cover. However, there is a problem of poor sealing at the maintenance opening. CONTENT OF THE UTILITY MODEL

[0003] Based on this, the present application provides a battery pack shell, a battery pack and an electric device to solve the sealing problem at the maintenance opening of the battery pack.

[0004] In one aspect, the present application provides a battery pack shell, comprising:

[0005] a tray, the tray being provided with a containing cavity and a power distribution cavity, the containing cavity being used for containing batteries;

[0006] a partition, the partition being arranged in the tray to separate the containing cavity and the power distribution cavity;

[0007] a sealing cover, the sealing cover being arranged on the containing cavity and the power distribution cavity, the sealing cover being provided with a maintenance opening, the maintenance opening being opposite to the power distribution cavity;

[0008] a cover plate, the cover plate being arranged on the maintenance opening;

[0009] a first sealing member being arranged between the cover plate and the sealing cover, the first sealing member being arranged around the maintenance opening, and a second sealing member being arranged between the partition and the sealing cover;

[0010] at least one fixing member, the fixing member being fixedly connected to the partition in sequence through the cover plate, the first sealing member, the sealing cover and the second sealing member.

[0011] In one possible implementation, the tray is further provided with a plurality of connection holes arranged at intervals around the power distribution cavity, the fixing member is a plurality of fixing members, and part of the fixing members are arranged corresponding to the plurality of connection holes and are fixedly connected to the connection holes in sequence through the cover plate, the first sealing member and the sealing cover.

[0012] In one possible implementation, the partition is provided with at least one connection slot, and the fixing member is fixedly connected to the connection slot.

[0013] In a possible implementation, the connecting grooves are multiple, and the multiple connecting grooves are arranged at intervals along the length direction of the partition.

[0014] In a possible implementation, the partition is further provided with a through groove, the through groove is arranged between adjacent connecting grooves, and the through groove is used for guiding the accommodation cavity and the power distribution cavity.

[0015] In a possible implementation, the second sealing member includes at least one sealing ring, the partition is further provided with a sealing groove, the sealing groove is arranged corresponding to the connecting groove and surrounds the corresponding connecting groove, and the sealing ring is arranged in the sealing groove and abuts against the sealing cover.

[0016] In a possible implementation, the sealing cover is further provided with multiple sealing holes arranged at intervals around the access hole, and the fixing member passes through the corresponding sealing hole.

[0017] In a possible implementation, the cover plate is provided with multiple cover plate holes, the cover plate holes are arranged corresponding to the sealing holes, and the fixing member passes through the cover plate hole.

[0018] In a possible implementation, the battery pack further includes multiple fastening members, the tray is further provided with multiple fastening grooves arranged at intervals around the accommodation cavity, the sealing cover is provided with multiple fastening holes arranged corresponding to the fastening grooves, and the fastening member is fixedly connected to the fastening groove through the fastening hole, so as to connect the tray and the sealing cover.

[0019] In a possible implementation, the battery pack further includes sealing glue, and the sealing glue is arranged between the tray and the sealing cover.

[0020] In a possible implementation, along one end of the length direction of the tray, the tray has a protruding portion, and the power distribution cavity is formed inside the protruding portion.

[0021] In a possible implementation, the tray further includes a cold plate used for heat exchange with the battery, and the battery pack shell further includes an inlet joint and an outlet joint, the inlet joint and the outlet joint are in communication with the flow channel in the cold plate and are arranged on the same side of the protruding portion.

[0022] On the other hand, the application provides a battery pack including a battery, a power distribution module and the above-mentioned battery pack shell, the battery is arranged in the accommodation cavity, the power distribution module is arranged in the power distribution cavity and is electrically connected with the battery.

[0023] In a possible implementation, the battery pack further includes an electrical connecting member, the partition is further provided with a through groove, and the electrical connecting member is arranged in the through groove and connects the battery and the power distribution module.

[0024] On the other hand, the application provides a power consumption device including the above-mentioned battery pack.

[0025] The battery pack shell, the battery pack and the electric equipment provided by the application set the elements that may need to be repaired or checked and replaced in the future in the power distribution cavity, set the maintenance opening on the corresponding position of the sealing cover, and set the cover plate on the maintenance opening, so that when the repair operation is needed in the future, the cover plate only needs to be removed, and the battery pack can be repaired, and the first sealing element is arranged between the cover plate and the sealing cover, the second sealing element is arranged between the partition and the sealing cover, the fixing element passes through the cover plate, the first sealing element, the sealing cover and the second sealing element, is arranged in the partition, the fixing element of the maintenance opening is connected, the double sealing is performed on the fixing element through the first sealing element and the second sealing element, the sealing effect is improved, and the problem of poor sealing is solved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0027] Figure 1 The structural schematic diagram of the battery pack provided by the application is shown in the figure.

[0028] Figure 2 The structural schematic diagram of the battery pack provided by the application is shown in the figure. Figure 1 The structural schematic diagram of the battery pack provided by the application is shown in the figure.

[0029] Figure 3 The structural schematic diagram of the battery pack provided by the application is shown in the figure. Figure 1 The structural schematic diagram of the battery pack provided by the application is shown in the figure.

[0030] Figure 4 The structural schematic diagram of the battery pack provided by the application is shown in the figure. Figure 1 The structural schematic diagram of the battery pack provided by the application is shown in the figure.

[0031] Figure 5 The structural schematic diagram of the battery pack provided by the application is shown in the figure. Figure 2 The structural schematic diagram of the battery pack provided by the application is shown in the figure.

[0032] Explanation of reference signs:

[0033] 100-battery pack; 10-tray; 11-containing cavity; 12-power distribution cavity; 13-connection hole; 14-fastening groove; 15-protruding part; 16-cold plate; 20-partition; 21-connection groove; 22-conducting groove; 23-second sealing element; 24-sealing groove; 30-battery; 40-sealing cover; 41-maintenance opening; 42-sealing hole; 43-fastening hole; 50-cover plate; 51-cover plate hole; 60-fixing element; 70-power distribution module; 71-electric connecting element; 80-first sealing element; 90-fastening element; 101-inlet joint; 102-outlet joint. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the present application clearer, the following will be combined with the preferred embodiments of the present application and the accompanying drawings to further describe the technical solutions in the embodiments of the present application in a more detailed manner. In the drawings, identical or similar reference numerals refer to identical or similar components or components having identical or similar functions throughout. The described embodiments are part of the present application, but not all the embodiments. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application. The embodiments of the present application will be described in detail below with reference to the drawings.

[0035] In the description of the present application, it should be noted that unless specifically defined and limited, the terms “mounting”, “connection”, “connecting” should be understood in a broad sense, for example, it can be a fixed connection, or an indirect connection through an intermediate medium, or an internal communication of two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the description of the present application, it should be understood that the terms “upper”, “lower”, “front”, “back”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] The terms “first”, “second”, “third” (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0038] In addition, the terms “include” and “have” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or display including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or displays.

[0039] At present, with the continuous development of electric vehicles, the requirements for the battery pack in the electric vehicle are also increasing, which requires not only compact structure and high integration, but also good sealing performance, which is not affected by the outside world and ensures the safety of the battery pack. Usually, the battery is contained by the tray and the upper cover, and is bonded and fixed to improve the sealing effect. However, there are many key parts and vulnerable parts in the battery pack, and when the battery pack is damaged, the battery pack can only be disassembled as a whole for maintenance, which is complicated to operate and has low efficiency in troubleshooting and maintenance. Therefore, in the prior art, a maintenance opening is reserved on the tray or the upper cover. However, in the prior art, a cover plate is arranged on the maintenance opening cover, and the cover plate is connected to the sealing cover by a fixing member, and the fixing member penetrates the cover plate and the sealing cover, which can cause the sealing failure of the battery pack, and the sealing of the maintenance opening is not tight.

[0040] After repeated thinking and verification, the inventors found that if a maintenance opening is arranged on the sealing cover and the parts that may need to be repaired, replaced or inspected are placed in the corresponding position of the tray, the battery pack can be maintained through the maintenance opening, and the fixing member connecting part of the maintenance opening can be double-sealed through the inner and outer sides by arranging sealing members on both sides of the sealing cover, thereby solving the problem of poor sealing.

[0041] Therefore, the present application provides a battery pack shell, which comprises:

[0042] A tray is arranged in the battery pack shell, and the tray is provided with a containing cavity and a power distribution cavity.

[0043] A partition is arranged in the tray to separate the containing cavity and the power distribution cavity.

[0044] A sealing cover is arranged on the containing cavity and the power distribution cavity, and the sealing cover is provided with a maintenance opening opposite to the power distribution cavity.

[0045] A cover plate is arranged on the maintenance opening.

[0046] A first sealing member is arranged between the cover plate and the sealing cover, and the first sealing member surrounds the maintenance opening.

[0047] At least one fixing member is arranged to sequentially penetrate the cover plate, the first sealing member, the sealing cover and the second sealing member, and is fixedly connected to the partition.

[0048] By setting the power distribution cavity in the tray, the elements that may need to be repaired or replaced in the future are arranged in the power distribution cavity, an access hole is arranged at the corresponding position on the sealing cover, and a cover plate is arranged on the access hole, so that when repair operation is needed in the future, the cover plate only needs to be removed, and the battery pack can be repaired, and the first sealing element is arranged between the cover plate and the sealing cover, the second sealing element is arranged between the partition and the sealing cover, the fixing element passes through the cover plate, the first sealing element, the sealing cover and the second sealing element, is arranged in the partition, the fixing element of the access hole is connected, and the double sealing of the first sealing element and the second sealing element is carried out, so that the sealing effect is improved, and the problem of loose sealing is solved.

[0049] The content of the present application will be described in detail below with reference to the drawings, so that those skilled in the art can more clearly and detailedly understand the content of the present application.

[0050] Figure 1 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 2 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 1 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 3 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 1 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 4 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 1 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 5 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 2 The structural schematic diagram of the battery pack provided by the embodiment of the present application is shown.

[0051] As shown in the structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 1 As shown in the structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 2 The battery pack shell provided by the embodiment of the present application is used in the battery pack 100. The battery pack 100 includes a battery 30 and a battery pack shell. The battery 30 is arranged in the battery pack shell.

[0052] The battery pack shell includes a tray 10, a partition 20, a sealing cover 40, a cover plate 50 and a fixing element 60. The partition 20 and the battery 30 are arranged in the tray 10. The sealing cover 40 is arranged on the tray 10. The cover plate 50 is arranged on the sealing cover 40. The fixing element 60 connects the tray 10, the partition 20, the sealing cover 40 and the cover plate 50, thereby assembling to form the battery pack 100.

[0053] As shown in the structural schematic diagram of the battery pack provided by the embodiment of the present application is shown. Figure 3 The tray 10 is provided with a containing cavity 11 and a power distribution cavity 12. The containing cavity 11 and the power distribution cavity 12 are communicated. The containing cavity 11 is used for containing the battery 30. The power distribution cavity 12 is used for arranging the elements that may need to be repaired or replaced in the future.

[0054] The sealing cover 40 is arranged on the containing cavity 11 and the power distribution cavity 12. The sealing cover 40 is provided with an access hole 41, and the access hole 41 is opposite to the power distribution cavity 12. The cover plate 50 is arranged on the access hole 41.

[0055] By providing a distribution cavity 12 in the tray 10, components that may require subsequent maintenance, inspection, or replacement are placed therein. An access port 41 is provided at a corresponding position on the sealing cover 40, and a cover plate 50 is provided over the access port 41. When subsequent maintenance operations are required, the cover plate 50 covering the access port 41 can be removed to access the battery pack 100 through the access port 41.

[0056] In a possible implementation, the battery pack 100 further includes a first seal 80 . The first seal 80 is disposed between the cover plate 50 and the sealing cover 40 , and the first seal 80 is disposed around the inspection port 41 .

[0057] When the fixing member 60 connects and fixes the cover plate 50 and the sealing cover 40 , both sides of the first sealing member 80 respectively abut against the cover plate 50 and the sealing cover 40 , thereby filling the gap between the cover plate 50 and the sealing cover 40 and sealing the cover plate 50 and the sealing cover 40 .

[0058] In a possible implementation, the first sealing member 80 is sealing foam.

[0059] In a possible implementation, the battery pack 100 further includes a second sealing member 23 . The second sealing member 23 is disposed between the partition 20 and the sealing cover 40 .

[0060] The fixing member 60 passes through the cover plate 50 , the first sealing member 80 , the sealing cover 40 and the second sealing member 23 in sequence and is fixedly connected to the partition 20 .

[0061] By providing the inner second sealing member 23 and the outer first sealing member 80 , the connection of the fixing member 60 is still in a sealed state, thereby improving the sealing effect of the inspection port 41 and the power distribution cavity 12 .

[0062] like Figure 4 As shown, the tray 10 is further provided with a plurality of connection holes 13. The plurality of connection holes 13 are arranged at intervals around the opening of the distribution cavity 12.

[0063] The separator 20 is provided in the tray 10 and is located on a side of the distribution cavity 12 close to the receiving cavity 11. The separator 20 is used to separate the receiving cavity 11 from the distribution cavity 12, thereby isolating the battery 30 from the components in the distribution cavity 12.

[0064] The partition 20 is provided with at least one connecting groove 21 . The fixing member 60 is fixedly connected to the connecting groove 21 .

[0065] The connection groove 21 and the connection hole 13 have the same orientation, and in their opening directions, the connection groove 21 and the connection hole 13 surround the power distribution cavity 12 and the inspection port 41 on the sealing cover 40 .

[0066] In a possible implementation, a plurality of connection grooves 21 are arranged at intervals along the length direction of the partition 20 .

[0067] The fixing members 60 correspond to both the connection holes 13 and the connection grooves 21. Specifically, some fixing members 60 correspond to multiple connection holes 13, while some fixing members 60 sequentially pass through the cover plate 50, the first sealing member 80, and the sealing cover 40 and are fixedly connected to the connection holes 13. The remaining fixing members 60 correspond to the connection grooves 21.

[0068] The fixing member 60 passes through the cover plate 50 and the sealing cover 40 and is arranged in the connection hole 13 of the tray 10 or the connection groove 21 of the partition 20, thereby connecting and sealing the cover plate 50 on the opening of the inspection port 41 and connecting and sealing the sealing cover 40 on the opening of the distribution cavity 12.

[0069] The inspection port 41 is covered by the cover plate 50, and the sealing cover 40 covers the accommodating cavity 11 and the distribution cavity 12. The cover plate 50, the sealing cover 40 are connected to the tray 10 and the partition 20 by the fixing member 60, and are sealed by the first sealing member 80 and the second sealing member 23, thereby improving the sealing connection effect of the distribution cavity 12 and the inspection port 41.

[0070] In a possible implementation, the connection hole 13 on the tray 10 is a through hole, and may also be a blind hole.

[0071] In a possible implementation, the fixing member 60 is a bolt.

[0072] In a possible implementation, the connection hole 13 and the connection groove 21 are provided with threads, or the fixing member 60 is connected to form threads.

[0073] like Figure 5 As shown, in a possible implementation, the connection slots 21 include a plurality of connection slots 21 , and the plurality of connection slots 21 are arranged at intervals along the edge of the power distribution cavity 12 .

[0074] Since the components in the accommodating cavity 11 and the distribution cavity 12 need to be connected to each other, a connecting position is required on the separator 20. However, the space inside the battery pack 100 is small and needs to be convenient for the actual assembly process. Therefore, a lead-out position is set on the separator 20, resulting in a discontinuous contact portion between the separator 20 and the sealing cover 40. Therefore, multiple connecting grooves 21 are required to connect the separator 20 and the sealing cover 40 respectively.

[0075] In a possible implementation, the battery pack 100 further includes a power distribution module 70 . The power distribution module 70 is disposed in the power distribution cavity 12 and is electrically connected to the battery 30 .

[0076] By disposing the power distribution module 70 in the power distribution cavity 12 , the battery 30 can be controlled, thereby improving the working efficiency of the battery pack 100 .

[0077] In a possible implementation, the battery pack 100 further comprises an electrical connecting member 71. The partition 20 is further provided with a through groove 22. The through groove 22 is arranged between adjacent connecting grooves 21. The through groove 22 is used to connect the accommodating cavity 11 and the power distribution cavity 12. The electrical connecting member 71 is arranged in the through groove 22 and connects the battery 30 and the power distribution module 70.

[0078] By arranging the through groove 22 between the adjacent connecting grooves 21 and arranging the electrical connecting member 71 in the through groove 22, the battery 30 in the accommodating cavity 11 is connected with the power distribution module 70 in the power distribution cavity 12, and the electrical connection between the battery 30 and the power distribution module 70 is realized, thereby facilitating the realization of the function of the power distribution module 70.

[0079] In a possible implementation, the partition 20 is sealingly connected with the sealing cover 40.

[0080] In a possible implementation, the second sealing member 23 comprises at least one sealing ring.

[0081] The partition 20 is further provided with a sealing groove 24. The sealing groove 24 is arranged corresponding to the connecting groove 21 and surrounds the corresponding connecting groove 21. The sealing ring is arranged in the sealing groove 24 and abuts against the sealing cover 40.

[0082] By arranging the sealing ring in the sealing groove 24 and making the sealing ring abut against the sealing cover 40, the corresponding position of the partition 20 can be sealed with the sealing cover 40. Moreover, since the sealing groove 24 is arranged around the corresponding connecting groove 21, the position of the connecting groove 21 can be sealed by the second sealing member 23, thereby improving the sealing effect of the sealing connection between the partition 20 and the sealing cover 40.

[0083] Due to space limitation and actual assembly limitation, the connecting groove 21 for leading out the electrical connecting member 71 needs to be arranged between the adjacent connecting grooves 21. The sealing of the connecting groove 21 on the partition 20 cannot be realized by a whole sealing member to seal all the connecting grooves 21. Therefore, the sealing of the connecting groove 21 on the partition 20 is realized by individually sealing every other connecting groove 21, that is, a plurality of individually arranged second sealing members 23 are used to seal the corresponding connecting grooves 21.

[0084] In a possible implementation, the second sealing member 23 is a sealing strip extending along the length direction of the partition 20, and the sealing strip abuts between the upper surface of the partition 20 and the lower surface of the sealing cover 40.

[0085] In a possible implementation, the electrical connecting member 71 comprises a high-voltage copper bar and a low-voltage wire harness.

[0086] In a possible implementation, the partition 20 is made of plastic material.

[0087] In a possible implementation, the sealing cover 40 further has a plurality of sealing holes 42 which are arranged at intervals around the access hole 41.

[0088] The sealing holes 42 correspond to the fixing members 60, i.e., the sealing holes 42 are opposite to the connecting holes 13 or the connecting grooves 21.

[0089] The fixing members 60 pass through the corresponding sealing holes 42, thereby connecting the sealing cover 40.

[0090] By arranging the sealing holes 42 and making the fixing members 60 pass through the sealing holes 42, the fixing members 60 are conveniently connected to the sealing cover 40, and meanwhile, the assembly difficulty is reduced and the efficiency is improved.

[0091] In a possible implementation, the cover plate 50 is provided with a plurality of cover plate holes 51. The cover plate holes 51 are arranged around the outer periphery of the cover plate 50.

[0092] The cover plate holes 51 are arranged in correspondence with the sealing holes 42, i.e., the cover plate holes 51 correspond to the fixing members 60.

[0093] The fixing members 60 pass through the cover plate holes 51, thereby connecting the cover plate 50.

[0094] By arranging the cover plate holes 51 and making the fixing members 60 pass through the cover plate holes 51, the fixing members 60 are conveniently connected to the cover plate 50, and meanwhile, the assembly difficulty is reduced and the efficiency is improved.

[0095] In a possible implementation, the tray 10 is further provided with a plurality of fastening grooves 14. The fastening grooves 14 are arranged at intervals around the opening of the accommodating cavity 11. The sealing cover 40 is provided with a plurality of fastening holes 43. The fastening holes 43 are arranged in correspondence with the fastening grooves 14.

[0096] The battery pack 100 further includes a plurality of fastening members 90. The fastening members 90 pass through the fastening holes 43 and are fixedly connected to the fastening grooves 14, thereby connecting the tray 10 and the sealing cover 40.

[0097] By making the fastening members 90 pass through the fastening grooves 14 and the fastening holes 43, the tray 10 and the sealing cover 40 are connected and sealed, thereby sealing the accommodating cavity 11 arranged on the tray 10 and improving the sealing effect on the battery 30.

[0098] In a possible implementation, the fastening members 90 are bolts.

[0099] In a possible implementation, the fastening members 90 and the fixing members 60 are of the same structure, thereby reducing the types of elements.

[0100] In a possible implementation, the battery pack 100 further includes sealing glue which is arranged between the tray 10 and the sealing cover 40 and around the opening of the accommodating cavity 11.

[0101] By setting the sealing glue between the tray 10 and the sealing cover 40, when the fastener 90 connects and fixes the tray 10 and the sealing cover 40, the sealing glue can fill the gap between the tray 10 and the sealing cover 40, thereby sealing the tray 10 and the sealing cover 40, that is, sealing the opening of the containing cavity 11.

[0102] In a possible implementation, along one end of the length direction of the tray 10, the tray 10 has a protruding part 15, and the power distribution cavity 12 is formed inside the protruding part 15.

[0103] When the power distribution cavity 12 is arranged in the protruding part 15, the assembly work can be facilitated, and in subsequent maintenance, the maintenance opening 41 and the power distribution cavity 12 can be easily emptied, facilitating the maintenance work and improving the efficiency. At the same time, the reliability is relatively high, and when used in an electric vehicle, the position of the battery pack 100 is less affected during use.

[0104] In a possible implementation, the tray 10 further includes a cold plate 16 for heat exchange with the battery 30.

[0105] In a possible implementation, the battery pack shell further includes an inlet joint 101 and an outlet joint 102, which are arranged on the tray 10. The inlet joint 101 and the outlet joint 102 are in communication with the flow channel in the cold plate 16. The inlet joint 101 is used for the inflow of the cooling liquid, and the outlet joint 102 is used for the outflow of the cooling liquid, thereby cooling the battery pack 100.

[0106] In a possible implementation, the inlet joint 101 and the outlet joint 102 are located on the side of the tray 10 where the power distribution cavity 12 is arranged, that is, on the same side as the protruding part 15.

[0107] Arranging the power distribution cavity 12, the inlet joint 101 and the outlet joint 102 on the same side of the tray 10 can facilitate the assembly and maintenance of the battery pack 100, thereby improving the processing efficiency.

[0108] During assembly, first, the partition 20 is placed in the power distribution cavity 12, the battery 30 is placed in the containing cavity 11, and the parts that may need to be repaired, replaced or inspected later, such as the power distribution module 70, are placed in the power distribution cavity 12. Then, the battery 30 and the power distribution module 70 are connected through the electrical connecting part 71, the second sealing part 23 is arranged in the sealing groove 24, the sealing glue is applied on the edge of the tray 10, the sealing cover 40 is arranged on the tray 10, the first sealing part 80 is arranged on the sealing cover 40, the cover plate 50 is arranged on the sealing cover 40, and the tray 10, the partition 20, the sealing cover 40 and the cover plate 50 are fixed and connected through the fixing part 60 and the fastener 90, respectively, to complete the sealing.

[0109] The battery pack shell provided by the embodiments of the present application comprises a tray 10, a partition 20, a sealing cover 40, a cover plate 50 and at least one fixing member 60. The tray 10 is provided with a containing cavity 11 and a power distribution cavity 12. The containing cavity 11 is used for containing a battery 30. The partition 20 is arranged in the tray 10 to separate the containing cavity 11 from the power distribution cavity 12. The sealing cover 40 is arranged on the containing cavity 11 and the power distribution cavity 12. The sealing cover 40 is provided with an access opening 41 opposite to the power distribution cavity 12. The cover plate 50 is arranged on the access opening 41. The first sealing member 80 is arranged between the cover plate 50 and the sealing cover 40 and surrounds the access opening 41. The second sealing member 23 is arranged between the partition 20 and the sealing cover 40. The fixing member 60 is sequentially arranged through the cover plate 50, the first sealing member 80, the sealing cover 40 and the second sealing member 23 and is fixedly connected to the partition 20.

[0110] By arranging the power distribution cavity 12 in the tray 10, the elements that may need to be repaired or checked and replaced in the future are arranged in the power distribution cavity 12. The access opening 41 is arranged on the corresponding position of the sealing cover 40. The cover plate 50 is arranged on the access opening 41. Therefore, when the repair operation is needed in the future, the cover plate 50 can be removed to repair the battery pack 100. The first sealing member 80 is arranged between the cover plate 50 and the sealing cover 40. The second sealing member 23 is arranged between the partition 20 and the sealing cover 40. The fixing member 60 is arranged through the cover plate 50 and the sealing cover 40 and is arranged in the partition 20. The access opening 41 and the two sides of the sealing cover 40 are double-sealed by the first sealing member 80 and the second sealing member 23, thereby improving the sealing effect and solving the problem of poor sealing.

[0111] In addition, the embodiments of the present application further provide a battery pack 100 comprising the battery 30, the power distribution module 70 and the battery pack shell. The battery 30 is arranged in the containing cavity 11. The power distribution module 70 is arranged in the access cavity 12 and is electrically connected to the battery 30.

[0112] In a possible implementation, the battery pack 100 further comprises an electrical connecting member 71. The partition 20 is further provided with a through groove 22. The electrical connecting member 71 is arranged in the through groove 22 and is connected to the battery 30 and the power distribution module 70.

[0113] In addition, the embodiments of the present application further provide a power consumption device comprising the power consumption device and the battery pack 100 described in any of the embodiments. The battery pack 100 is used for providing electric energy for the power consumption device.

[0114] The specific structure, working principle and function of the battery pack 100 have been described in detail in the foregoing embodiments, and will not be described here.

[0115] The electric device in the embodiments of the present application can be a vehicle, for example: the vehicle can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile, etc. Correspondingly, the electric device can be a driving mechanism of the vehicle, or a control system of the vehicle.

[0116] In addition, the electric device can also be other devices, such as a mobile phone, a portable device, a notebook computer, an electric toy, an electric tool, a ship and a spacecraft, etc., wherein the spacecraft can include an airplane, a rocket, a space shuttle or a spaceship.

[0117] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack housing, characterized in that: include: A tray (10), wherein the tray (10) is provided with a receiving cavity (11) and a power distribution cavity (12), wherein the receiving cavity (11) is used to receive a battery (30); A separator (20), the separator (20) being provided in the tray (10) to separate the accommodating cavity (11) from the power distribution cavity (12); A sealing cover (40), the sealing cover (40) is provided on the accommodating cavity (11) and the power distribution cavity (12), the sealing cover (40) is provided with an inspection port (41), and the inspection port (41) is opposite to the power distribution cavity (12); a cover plate (50), the cover plate (50) being arranged to cover the inspection opening (41); A first sealing member (80) is provided between the cover plate (50) and the sealing cover (40), the first sealing member (80) being arranged around the inspection port (41), and a second sealing member (23) is provided between the partition (20) and the sealing cover (40); At least one fixing member (60), the fixing member (60) sequentially passes through the cover plate (50), the first sealing member (80), the sealing cover (40) and the second sealing member (23) to be fixedly connected to the partition (20).

2. The battery pack housing according to claim 1, wherein: The tray (10) further comprises a plurality of connection holes (13) arranged at intervals around the power distribution cavity (12); the fixing members (60) are multiple, and some of the fixing members (60) are arranged corresponding to the plurality of connection holes (13) and sequentially pass through the cover plate (50), the first sealing member (80) and the sealing cover (40) to be fixedly connected to the connection holes (13).

3. The battery pack housing according to claim 1, wherein: The partition (20) is provided with at least one connecting groove (21), and the fixing member (60) is fixedly connected to the connecting groove (21).

4. The battery pack housing according to claim 3, wherein: The connecting grooves (21) include a plurality of connecting grooves (21), and the plurality of connecting grooves (21) are arranged at intervals along the length direction of the partition (20).

5. The battery pack housing according to claim 4, wherein: The separator (20) is further provided with a conducting groove (22), the conducting groove (22) being provided between adjacent connecting grooves (21), and the conducting groove (22) being used for conducting the accommodating cavity (11) and the power distribution cavity (12).

6. The battery pack housing according to claim 3, wherein: The second sealing member (23) includes at least one sealing ring. The partition member (20) further includes a sealing groove (24). The sealing groove (24) is arranged corresponding to the connecting groove (21) and surrounds the corresponding connecting groove (21). The sealing ring is arranged in the sealing groove (24) and abuts against the sealing cover (40).

7. The battery pack housing according to any one of claims 1 to 6, characterized in that: The sealing cover (40) further comprises a plurality of sealing holes (42) arranged at intervals around the inspection opening (41), and the fixing member (60) passes through the corresponding sealing holes (42).

8. The battery pack housing according to claim 7, wherein: The cover plate (50) is provided with a plurality of cover plate holes (51), the cover plate holes (51) are arranged corresponding to the sealing holes (42), and the fixing member (60) passes through the cover plate holes (51).

9. The battery pack housing according to any one of claims 1 to 6, characterized in that: The battery pack (100) further includes a plurality of fasteners (90), the tray (10) further includes a plurality of fastening grooves (14) spaced apart around the accommodating cavity (11), the sealing cover (40) is provided with a plurality of fastening holes (43), the fastening holes (43) are arranged corresponding to the fastening grooves (14), and the fasteners (90) pass through the fastening holes (43) and are fixedly connected to the fastening grooves (14) to connect the tray (10) and the sealing cover (40).

10. The battery pack housing according to claim 9, wherein: The battery pack (100) further comprises a sealant, wherein the sealant is disposed between the tray (10) and the sealing cover (40).

11. The battery pack housing according to any one of claims 1 to 6, characterized in that: The tray (10) has a protrusion (15) along one end of the length direction of the tray (10), and the power distribution cavity (12) is formed inside the protrusion (15).

12. The battery pack housing according to claim 11, wherein: The tray (10) includes a cold plate (16) for exchanging heat with the battery (30). The battery pack housing also includes an inlet connector (101) and an outlet connector (102). The inlet connector (101) and the outlet connector (102) are in communication with a flow channel in the cold plate (16) and are arranged on the same side as the protrusion (15).

13. A battery pack, characterized in that: The invention comprises a battery (30), a power distribution module (70) and a battery pack shell according to any one of claims 1 to 12, wherein the battery (30) is arranged in the accommodating cavity (11), and the power distribution module (70) is arranged in the power distribution cavity (12) and is electrically connected to the battery (30).

14. The battery pack according to claim 13, wherein: The battery pack (100) further includes an electrical connector (71), the separator (20) is further provided with a conducting groove (22), the electrical connector (71) is provided in the conducting groove (22), and connects the battery (30) and the power distribution module (70).

15. An electrical device, characterized in that: Comprising the battery pack (100) as claimed in claim 13 or 14.

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