Battery pack

Abstract

The utility model discloses a battery pack. The battery pack comprises a box shell, a battery module, a panel, a cable and a BMS (Battery Management System) slave plate, the box shell is provided with a cavity and an opening communicated with the cavity. And the battery module is arranged in the cavity. The panel is detachably connected to the box shell, the panel covers the opening, a plurality of sockets are arranged on the panel, and a control seat is arranged on the box shell. And the cable is positioned in the cavity and is respectively connected with the battery module and the corresponding socket. The BMS slave plate is arranged in the cavity, the input end of the BMS slave plate is connected with the battery module, and the output end of the BMS slave plate is connected to the control seat. The battery pack is provided with the detachable panel, a plurality of sockets and control seats can be integrated on the panel, the assembly difficulty is simplified, the assembly of the battery pack is facilitated, the BMS slave plate is arranged in the cavity and does not interfere with the disassembly and assembly of the panel, and the utilization rate of the internal space of the battery pack and the operation convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and more specifically, to a battery pack. Background Art

[0002] A battery pack generally includes a box shell, a battery module, a BMS slave board, and multiple sockets. The box shell has a cavity, and the battery module is disposed in the cavity. The BMS slave board is usually fixedly installed on the outside of the box shell for convenient connection of external cables. When a detachable plate is provided on the box shell, the BMS slave board may block the plate, making it inconvenient to disassemble and assemble the plate. In the prior art, each socket is disposed at a different position on the box shell. For example, each socket may be located on different sides of the box body respectively, resulting in high assembly difficulty for each socket and poor space utilization rate of the battery pack, and poor usability of the battery pack.

[0003] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0004] To solve one of the above technical defects, the present utility model provides a battery pack.

[0005] The present application provides the following technical solutions:

[0006] A battery pack, comprising:

[0007] A box shell having a cavity and an opening communicating with the cavity;

[0008] A battery module disposed in the cavity;

[0009] A panel detachably connected to the box shell, covering the opening, with multiple sockets provided on the panel, and a control seat provided on the box shell;

[0010] A cable located in the cavity and respectively connecting the battery module and the corresponding socket;

[0011] A BMS slave board disposed in the cavity, with the input end of the BMS slave board connected to the battery module and the output end of the BMS slave board connected to the control seat.

[0012] Optionally, the battery pack includes a bracket;

[0013] The bracket is located in the cavity and between the battery module and the panel, and the bracket is connected to the box shell;

[0014] The BMS slave board is mounted on the bracket.

[0015] Optionally, there is a gap cavity between the bracket and the panel;

[0016] The slave BMS is located in the gap cavity.

[0017] Optionally, the bracket includes a plate body and bent edges located at both side edges of the plate body, and the bent edges are bent toward the panel side;

[0018] A hollow portion is provided on the plate body, the slave BMS is located between the bent edges on both sides of the plate body, and the slave BMS covers the hollow portion.

[0019] Optionally, connection holes are provided on the plate body;

[0020] Fasteners pass through the connection holes and are connected to the slave BMS.

[0021] Optionally, the box housing has a bottom plate;

[0022] A limit beam and a fixed short beam are provided on the bottom plate;

[0023] The battery module and the fixed short beam are respectively located on both sides of the limit beam;

[0024] The fixed short beam is connected to the limit beam;

[0025] The bracket is connected to the fixed short beam.

[0026] Optionally, connection ears are provided on one side of the bracket facing away from the bottom plate;

[0027] A wire bundling ring is connected to the connection ear, and the wire bundling ring is used to fix the cables in the battery pack.

[0028] Optionally, the socket includes any one or more of a positive high-voltage socket, a negative high-voltage socket, and an MSD socket;

[0029] An explosion-proof valve is further provided on the panel.

[0030] Optionally, thread grooves are provided on the box housing around the opening edge;

[0031] One ends of a plurality of fasteners pass through the panel and are threadedly connected to the corresponding thread grooves, and the other ends of the fasteners are limited on the panel.

[0032] Optionally, rivet nuts are provided on the box housing around the opening edge, and the rivet nuts have the thread grooves.

[0033] By adopting the above technical solutions, the present application has the following beneficial effects:

[0034] The battery pack of the present application is provided with a detachable panel, on which multiple sockets and control seats can be integrated, simplifying the assembly difficulty and facilitating the assembly of the battery pack. Moreover, the BMS slave board is arranged in the cavity without interfering with the disassembly and assembly of the panel, improving the utilization rate of the internal space of the battery pack and the operation convenience.

[0035] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0036] As a part of the present application, the accompanying drawings are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:

[0037] Figure 1 is a partial external structure schematic diagram of the battery pack provided by the embodiment of the present application;

[0038] Figure 2 is a partial structure schematic diagram of the battery pack provided by the embodiment of the present application with the upper cover and the battery module removed;

[0039] Figure 3 is another partial perspective view of the battery pack provided by the embodiment of the present application with the upper cover and the battery module removed;

[0040] Figure 4 is a partial internal structure schematic diagram of the battery pack provided by the embodiment of the present application with the upper cover removed.

[0041] In the figures, the box shell 1, the bottom plate 11, the limiting beam 111, the fixed short beam 112, the upper cover 12, the end plate 13, the rivet nut 14, the battery module 2, the panel 3, the socket 31, the positive high-voltage socket 311, the negative high-voltage socket 312, the MSD socket 313, the explosion-proof valve 314, the cable 4, the BMS slave board 5, the bracket 6, the board body 61, the hollow part 611, the connection hole 612, the bent edge 62, the flanging 63, the connection ear 64, the MSD module 7, and the fastener 8.

[0042] It should be noted that these drawings and the text description are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Specific Embodiments

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0044] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] See Figures 1 to 4 As shown, the embodiment of the present application provides a battery pack, including: a box shell 1, a battery module 2, a panel 3, a cable 4, and a BMS slave board 5. The box shell 1 has a cavity and an opening communicating with the cavity. The battery module 2 is disposed in the cavity. The panel 3 is detachably connected to the box shell 1. The panel 3 covers the opening. A plurality of sockets 31 are provided on the panel 3, and a control seat is provided on the box shell 1. The cable 4 is located in the cavity, and the cable 4 is respectively connected to the battery module 2 and the corresponding socket 31. The BMS slave board 5 is disposed in the cavity. The input end of the BMS slave board 5 is connected to the battery module 2, and the output end of the BMS slave board 5 is connected to the control seat. The battery pack of the present application is provided with a detachable panel 3. A plurality of sockets 31 and a control seat can be integrated on the panel 3, which simplifies the assembly difficulty, facilitates the assembly of the battery pack, and the BMS slave board 5 is disposed in the cavity without interfering with the disassembly and assembly of the panel 3, improving the utilization rate of the internal space of the battery pack and the operation convenience.

[0047] As Figure 3As shown, the battery pack includes a bracket 6. The bracket 6 is located within the cavity and between the battery module 2 and the panel 3, and the bracket 6 is connected to the housing 1. The BMS slave board 5 is mounted on the bracket 6. The bracket 6 is vertically connected to the bottom of the housing 1 and mounted on the bracket 6. In the embodiment of the present application, by installing the bracket 6 in the housing 1, it facilitates the installation of the BMS slave board 5 and positions the BMS slave board 5 between the battery module 2 and the panel 3, making full use of the internal space of the battery pack. The bracket 6 can be made of insulating material, which can effectively isolate the battery module 2 and the BMS slave board 5 to prevent short circuits from occurring.

[0048] There is a gap cavity between the bracket 6 and the panel 3. The BMS slave board 5 is located within the gap cavity. That is, the BMS slave board 5 is located at one end of the bracket 6 away from the battery module 2, and the bracket 6 physically isolates the BMS slave board 5 and the battery module 2 to prevent interference between the BMS slave board 5 and the battery module 2.

[0049] In a possible implementation, as Figure 3 shown, the bracket 6 includes a plate body 61 and bent edges 62 located on both sides of the plate body 61. The bent edges 62 are bent towards the panel 3 side. The bent edges 62 and the plate body 61 form the gap cavity to facilitate the accommodation of the BMS slave board 5 within the gap cavity. A hollowed-out portion 611 is provided on the plate body 61. The BMS slave board 5 is located between the bent edges 62 on both sides of the plate body 61, and the BMS slave board 5 covers the hollowed-out portion 611. The hollowed-out portion 611 is beneficial for the heat dissipation of the BMS slave board 5 and also has a weight-reducing effect, reducing the weight of the battery pack.

[0050] As Figure 3 shown, connection holes 612 are provided on the plate body 61. Fasteners pass through the connection holes 612 and are connected to the BMS slave board 5. Threaded holes are provided on the BMS slave board 5. The fasteners can be screws. The stud of the screw passes through the connection hole 612 and is threadedly connected to the threaded hole, and the nut of the screw is limited to the side of the plate body 61 away from the panel 3 to mount the BMS slave board 5 on the bracket 6.

[0051] In a possible implementation, as Figure 3As shown, the box shell 1 has a bottom plate 11. A limiting beam 111 and a fixed short beam 112 are arranged on the bottom plate 11. The battery module 2 and the fixed short beam 112 are respectively located on both sides of the limiting beam 111. The fixed short beam 112 is connected to the limiting beam 111. The fixed short beam 112 can be connected to the limiting beam 111 by fasteners or welding. The bracket 6 is connected to the fixed short beam 112. One end of the battery module 2 is limited on the limiting beam 111, that is, the limiting beam 111 blocks the end surface of each battery module 2 close to one end of the bracket 6. The limiting beam 111 is narrow in width and is used to limit the battery module 2. If the bracket 6 is connected to the limiting beam 111, there is insufficient connection space. The short beam is vertically connected to the limiting beam 111. The bottom of the bracket 6 has a flange 63, and a connecting member passes through the flange 63 and is connected to the fixed short beam 112, and the other end of the connecting member is limited on the flange 63. The connecting member can be a bolt and a nut, a first mounting hole is provided on the flange 63, and a second mounting hole is provided on the fixed short beam 112, the screw of the bolt passes through the first connection hole 612 and the second connection hole 612 and is threadedly connected to the nut, and the nut of the bolt and the nut are limited on both sides of the fixed short beam 112 and the flange 63.

[0052] like Figure 1 As shown, the box shell 1 also includes an upper cover 12 and two end plates 13, the upper cover 12 is connected to the bottom plate 11, two ports are formed between the upper cover 12 and the bottom plate 11, the two end plates 13 are both connected to the bottom plate 11 and the upper cover 12, the two end plates 13 respectively cover the corresponding ports, and the opening is set on one of the end plates 13.

[0053] A connecting ear 64 is provided on one side of the bracket 6 away from the bottom plate 11. The connecting ear 64 is connected to a cable tie ring, which is used to fix the cables 4 in the battery pack so that the cables 4 are arranged neatly and orderly without being too messy.

[0054] like Figure 1 and Figure 2As shown, the socket 31 includes any one or more of a positive high-voltage socket 311, a negative high-voltage socket 312, and an MSD socket 313. Preferably, a plurality of sockets 31 are provided on the panel 3, and each socket 31 can be a positive high-voltage socket 311, a negative high-voltage socket 312, and an MSD socket 313 respectively. The MSD module 7 and the MSD socket 313 are pluggable. The positive high-voltage socket 311, the negative high-voltage socket 312, and the MSD socket 313 can be fastened to the panel 3 by bolts. The positive high-voltage socket 311 and the negative high-voltage socket 312 are quick-insert sockets for convenient plugging and unplugging connection with external cables. An explosion-proof valve 314 is also provided on the panel 3. The explosion-proof breather valve is fastened to the panel 3 by bolts.

[0055] In a possible implementation, as Figure 1 shown, the housing 1 is provided with threaded grooves around the edge of the opening. One end of a plurality of fasteners 8 passes through the panel 3 and is threadedly connected to the corresponding threaded grooves, and the other end of the fasteners 8 is limited on the panel 3. The fasteners 8 can be screws, the screw rods of the screws penetrate the panel 3 and are threadedly connected to the corresponding threaded grooves, and the heads of the screws are limited on the panel 3.

[0056] As Figure 3 shown, the housing 1 is provided with rivet nuts 14 around the edge of the opening, and the rivet nuts 14 have the threaded grooves. That is, the end plate 13 is provided with rivet nuts 14 on the edge of the opening, and the setting of the rivet nuts 14 can reliably fix the panel 3 on the housing 1.

[0057] The above are only the preferred embodiments of the present invention, and there is no any form of limitation to the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the technical solution scope of the present invention, can make some changes or modifications to the above-mentioned technical content to be equivalent change equivalent embodiments. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A battery pack, characterized in that, include: A box shell, wherein the box shell has a cavity and an opening communicating with the cavity; A battery module, wherein the battery module is disposed in the cavity; A panel, the panel is detachably connected to the box shell, the panel covers the opening, a plurality of sockets are arranged on the panel, and a control seat is arranged on the box shell; Cables, the cables are located in the cavity, and the cables are respectively connected to the battery modules and the corresponding sockets; A BMS slave board is disposed in the cavity, an input end of the BMS slave board is connected to the battery module, and an output end of the BMS slave board is connected to the control base.

2. The battery pack according to claim 1, characterized in that, Including bracket; The bracket is located in the cavity and between the battery module and the panel, and the bracket is connected to the box shell; The BMS slave board is mounted on the bracket.

3. The battery pack according to claim 2, characterized in that, There is a gap cavity between the bracket and the panel; The BMS slave plate is located in the gap cavity.

4. The battery pack according to claim 3, characterized in that The bracket includes a plate body and bent edges located at both side edges of the plate body, and the bent edges are bent toward one side of the panel; The plate body is provided with a hollow portion, the BMS slave plate is located between the bent edges on both sides of the plate body, and the BMS slave plate covers the hollow portion.

5. The battery pack according to claim 4, wherein, The plate body is provided with a connecting hole; The fastener passes through the connection hole and is connected to the BMS slave board.

6. The battery pack according to claim 2, wherein, The box shell has a bottom plate; The bottom plate is provided with a limiting beam and a fixed short beam; The battery module and the fixed short beam are respectively located on two sides of the limiting beam; The fixed short beam is connected to the limiting beam; The bracket is connected to the fixed short beam.

7. The battery pack according to claim 6, wherein, A connecting ear is provided on one side of the bracket away from the bottom plate; The connecting ear is connected to a cable tie ring, and the cable tie ring is used to fix the cables in the battery pack.

8. The battery pack according to claim 1, characterized in that, The socket includes any one or more of a positive high voltage socket, a negative high voltage socket, and an MSD socket; The panel is also provided with an explosion-proof valve.

9. The battery pack according to claim 1, characterized in that, The box shell is provided with a thread groove around the edge of the opening; One end of a plurality of fasteners passes through the panel and is threadedly connected to a corresponding thread groove, and the other end of the fasteners is limited on the panel.

10. The battery pack according to claim 9, characterized in that, The box shell is provided with a rivet nut around the edge of the opening, and the rivet nut has the thread groove.

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