Battery pack

Abstract

The utility model discloses a battery pack. The battery pack comprises a box shell, a battery module, a panel and a cable assembly, the box shell is provided with a cavity and an opening communicated with the cavity, 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 the cable assembly is arranged in the cavity. And the cable assembly is electrically connected with the battery module and each socket on the panel respectively. According to the battery pack, the detachable panel is arranged, and a plurality of sockets can be integrated on the panel, so that the battery pack is convenient to assemble, 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, in particular to a battery pack. Background Art

[0002] A battery pack usually includes a box shell, a battery module and multiple sockets. The box shell has a cavity, the battery module is arranged in the cavity, and each socket is arranged on the box shell. The sockets are usually arranged in different areas of the box shell, for example, on different sides of the box shell, which makes it difficult to assemble each socket, and also makes the space utilization of the battery pack poor, and the battery pack is not convenient to use.

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

[0004] The utility model provides a battery pack.

[0005] In order to achieve the above-mentioned utility model purpose, the present application provides a battery pack.

[0006] A battery pack, comprising:

[0007] A box shell, wherein the box shell has a cavity and an opening communicating with the cavity;

[0008] A battery module, wherein the battery module is disposed in the cavity;

[0009] A panel, the panel is detachably connected to the box shell, the panel covers the opening, and a plurality of sockets are arranged on the panel;

[0010] A cable assembly is disposed in the cavity, and the cable assembly is electrically connected to the battery module and each socket on the panel.

[0011] Optionally, the panel has a convex shell wall;

[0012] At least part of the socket is arranged on the convex shell wall.

[0013] Optionally, the socket includes any one or more of a positive high voltage connector socket, a negative high voltage connector socket and an MSD socket.

[0014] Optionally, an explosion-proof ventilation valve is provided on the panel.

[0015] Optionally, the cable assembly includes an interlocking harness assembly, a first bracket is provided on the inner side of the panel, and the interlocking harness assembly is connected to the first bracket.

[0016] Optionally, a second bracket is provided on the inner side of the panel;

[0017] The cable assembly includes a copper bar connected to the second bracket.

[0018] Optionally, the box shell is provided with a thread groove around the edge of the opening;

[0019] One end of a plurality of fasteners passes through the panel and is threadedly connected to the corresponding thread grooves.

[0020] Optionally, the box shell is provided with a rivet nut around the edge of the opening, and the rivet nut has the thread groove;

[0021] The fastener is threadedly connected to the thread groove.

[0022] Optionally, the battery pack further comprises a sealing gasket, which is attached to the box shell and the panel and covers a gap between the box shell and the panel.

[0023] Optionally, the box shell includes a bottom plate, an upper cover and two end plates;

[0024] The upper cover is connected to the bottom plate, and two ports are formed between the upper cover and the bottom plate;

[0025] The two end plates are connected to the bottom plate and the upper cover, and the two end plates cover corresponding ports respectively;

[0026] The opening is arranged on the end plate.

[0027] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of a battery pack provided in an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the structure of the box shell of the battery pack provided in an embodiment of the present application;

[0031] Figure 3 is a schematic diagram of a partial structure of a battery pack provided in an embodiment of the present application;

[0032] Figure 4 is a schematic diagram of the internal structure of a battery pack provided in an embodiment of the present application;

[0033] Figure 5 is a schematic diagram of the inner structure of the end plate of the battery pack provided in an embodiment of the present application;

[0034] In the figure, 1. box shell; 11. opening; 12. rivet nut; 13. end plate; 2. battery module; 3. panel; 31. protruding shell wall; 31. positive high-voltage connector socket; 32. negative high-voltage connector socket; 33. MSD socket; 34. explosion-proof vent valve; 35. first bracket; 36. second bracket; 4. MSD module; 5. interlocking harness assembly; 6. snap-fit; 7. fastener; 8. copper busbar.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figures 1 to 5As shown, an embodiment of the present application provides a battery pack, including: a box shell 1, a battery module 2, a panel 3 and a cable assembly. The box shell 1 has a cavity and an opening 11 connected to the cavity, the battery module 2 is arranged in the cavity, the panel 3 is detachably connected to the box shell 1, the panel 3 covers the opening 11, a plurality of sockets are arranged on the panel 3, and the cable assembly is arranged in the cavity, and the cable assembly is electrically connected to the battery module 2 and each socket on the panel 3 respectively.

[0040] The battery pack of the present application is provided with a detachable panel 3, on which a plurality of sockets can be integrated, so as to facilitate the assembly of the battery pack and improve the utilization rate of the internal space of the battery pack and the convenience of operation.

[0041] In some possible implementations, the panel 3 has a convex shell wall 31, and at least part of the sockets are arranged on the convex shell wall 31. The panel 3 is provided with a convex shell wall 31, which can help increase the space of the cavity, and increase the space for accommodating the cable assembly in the PACK, such as the space for accommodating the copper bus 8. The cable assembly includes the copper bus and other cables.

[0042] In some possible implementation schemes, the socket includes any one or more of a positive high voltage connector socket 31, a negative high voltage connector socket 32, and an MSD socket 33. Preferably, a plurality of sockets are provided on the panel 3, and each socket may be a positive high voltage connector socket 31, a negative high voltage connector socket 32, and an MSD socket 33. The MSD module 4 and the MSD socket 33 are pluggable. The positive high voltage connector socket 31, the negative high voltage connector socket 32, and the MSD socket 33 may be fastened to the panel 3 by bolts. The positive high voltage connector socket 31 and the negative high voltage connector socket 32 ​​are quick-plug sockets for convenient plug-in connection with external cables.

[0043] In some possible implementation schemes, an explosion-proof vent valve 34 is provided on the panel 3. The explosion-proof vent valve 34 is fastened to the panel 3 by bolts.

[0044] In some possible embodiments, the cable assembly includes an interlocking harness assembly 5, a first bracket 35 is provided on the inner side of the panel 3, and the interlocking harness assembly 5 is connected to the first bracket 35. The interlocking harness assembly 5 can be connected to the control assembly (such as the BMU module) and each socket of the battery pack to detect whether the corresponding module is plugged into each socket. The interlocking harness assembly 5 is a conventional component in the cable assembly of the battery pack, and the present application does not limit its principle and structure. The first bracket 35 can be welded to the back of the panel 3, and the first bracket 35 can be connected to the snap-on member 6 by snap-on connection. The interlocking harness assembly 5 extends through the snap-on member 6 and is fixed by the snap-on member 6. The present application does not limit the specific structure of the snap-on member 6, and the snap-on member can directly select the conventional plastic snap-on member in the field. The snap-on member encloses a through-port, and the cable can be arranged through the through-port.

[0045] In some possible embodiments, a second bracket 36 is provided on the inner side of the panel 3, and the cable assembly includes a copper bar 8, which is connected to the second bracket 36. The copper bar 8 can be used to connect the battery module 2 and the corresponding socket. The copper bar 8 can be fastened to the corresponding socket by bolts. The copper bar 8 is fixed to the second bracket 36 in a limited position, so that the cables inside the cavity are regular and not messy. A snap fastener 6 can also be provided on the second bracket 36, and the copper bar 8 can be fixed to the snap fastener 6 on the second bracket 36 in a limited position.

[0046] In some possible implementation schemes, the box shell 1 is provided with a thread groove around the edge of the opening 11 , and one end of a plurality of fasteners 7 passes through the panel 3 and is threadedly connected to the corresponding thread groove.

[0047] For example, the box shell 1 is provided with a rivet nut 12 around the edge of the opening 11, the rivet nut 12 has the thread groove, and the fastener 7 is threadedly connected to the thread groove. The provision of the rivet nut 12 can not only reliably fix the panel 3 on the box shell 1, but also achieve IP67 sealing.

[0048] In some possible implementations, the battery pack further includes a sealing gasket, which is attached to the box shell 1 and the panel 3, and covers the gap between the box shell 1 and the panel 3. The sealing gasket can extend along the edge of the opening 11 of the box shell 1, and can be a closed ring, so that the installed panel 3 can reach the IP67 protection level. The overall structure greatly improves the space utilization of the battery pack and has excellent sealing safety. The sealing gasket can be located between the box shell and the panel, and the fastener can pass through the sealing gasket.

[0049] In some possible embodiments, the box shell includes a bottom plate, an upper cover and two end plates 13, the upper cover is connected to the bottom plate, two ports are formed between the upper cover and the bottom plate, the two end plates 13 are connected to the bottom plate and the upper cover, the two end plates 13 respectively cover corresponding ports, and the opening 11 is set on one of the end plates 13.

[0050] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

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, and a plurality of sockets are arranged on the panel; A cable assembly is disposed in the cavity, and the cable assembly is electrically connected to the battery module and each socket on the panel.

2. The battery pack according to claim 1, characterized in that: The panel has a convex shell wall; At least part of the socket is arranged on the convex shell wall.

3. The battery pack according to claim 1, characterized in that: The socket includes any one or more of a positive high voltage connector socket, a negative high voltage connector socket and an MSD socket.

4. The battery pack according to claim 1, characterized in that: An explosion-proof vent valve is arranged on the panel.

5. The battery pack according to claim 1, characterized in that: The cable assembly includes an interlocking harness assembly. A first bracket is arranged on the inner side of the panel, and the interlocking harness assembly is connected to the first bracket.

6. The battery pack according to claim 1, characterized in that: A second bracket is provided on the inner side of the panel; The cable assembly includes a copper bar connected to the second bracket.

7. 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 the corresponding thread grooves.

8. The battery pack according to claim 7, 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; The fastener is threadedly connected to the thread groove.

9. The battery pack according to claim 1, characterized in that: A sealing gasket is included, and the sealing gasket is attached to the box shell and the panel, and the sealing gasket covers the gap between the box shell and the panel.

10. The battery pack according to claim 1, characterized in that: The box shell includes a bottom plate, an upper cover and two end plates; The upper cover is connected to the bottom plate, and two ports are formed between the upper cover and the bottom plate; The two end plates are connected to the bottom plate and the upper cover, and the two end plates cover corresponding ports respectively; The opening is arranged on the end plate.

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