CN219106399U

CN219106399U - Battery pack

Info

Publication number: CN219106399U
Application number: CN202223500731.1U
Authority: CN
Inventors: 梁人
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-30
Anticipated expiration: 2032-12-27

Abstract

The utility model provides a battery pack, wherein a bottom cover plate is detachably sealed at the bottom of a box body frame; the bracket is arranged on one side of the box body frame far away from the bottom cover plate; the bearing base is arranged on one side of the bracket, which is close to the bottom cover plate. The detachable base is arranged on the support, a first matching part is arranged on a first lug of the support, a second lug of the base is arranged on one side of the first lug away from the first matching part, and then the first fixing part sequentially penetrates through the second lug and the first lug and is detachably connected with the first matching part, so that the bottom of the battery pack power-off module is detached, and the technical problem of difficulty in overhauling the battery pack power-off module is solved.

Description

Battery pack

Technical Field

The utility model relates to the technical field of battery modules, in particular to a battery pack.

Background

With the rapid development of the pure electric vehicles, the battery system is more important as a power source of the pure electric vehicles, and has more convenience in maintenance.

At present, the battery pack is basically installed at the bottom of a vehicle, and the electric quantity of the battery pack can be improved as much as possible because the longitudinal space of the bottom is the largest. However, in the related art, the battery pack generally includes a BDU (battery pack circuit breaking unit), and the BDU module is often mounted on a lower case of the battery pack from top to bottom, so that when the BDU module is overhauled, the whole battery pack needs to be disassembled, which is time-consuming, laborious and inconvenient.

Disclosure of Invention

Embodiments of the present utility model provide a battery pack that can support the removal of a battery pack power down module from the bottom without the need to remove the entire battery pack.

Embodiments of the present utility model provide a battery pack including

A box frame;

the bottom cover plate is detachably sealed at the bottom of the box body frame;

the bracket is arranged on one side of the box body frame away from the bottom cover plate; the bracket comprises a bracket main body, a first lug and a first matching part, wherein the first lug is connected with the bracket main body, and the first matching part is arranged at one side of the first lug far away from the bottom cover plate;

the bearing base is arranged on one side, close to the bottom cover plate, of the bracket and is detachably connected with the bracket; the bearing base comprises a base body and a second lug, and the second lug is connected with the base body;

the battery pack power-off module is arranged on the bearing base

The second lug is arranged on one side of the first lug, which is close to the bottom cover plate; the battery pack further comprises a first fixing part, and a part of the first fixing part penetrates through the second lug and the first lug and is detachably connected with the first matching part.

In an embodiment, the bracket further comprises third lugs connected to both side ends of the bracket body; the third lug is arranged on one side of the box body frame, which is close to the bottom cover plate;

the box body frame comprises a frame body and a second matching part arranged on one side of the frame body away from the bottom cover plate; the battery pack further includes a second fixing member, a portion of which penetrates the third lug and the frame body and is detachably connected with the second fitting portion.

In an embodiment, the height of the first lug is greater than the height of the third lug based on the bottom cover plate.

In one embodiment, the bracket main body comprises a top plate, a first side plate and a second side plate, wherein the first side plate is connected and arranged on opposite sides of the top plate, and the second side plate is arranged between the two first side plates and connected with the top plate;

the first lug is connected to the first side plate or the second side plate, and the third lug is connected to the first side plate or the second side plate.

In an embodiment, the first side plate and the second side plate are spaced apart from each other.

In one embodiment, the first mating portion is provided with a threaded bore; the first fixing part is in threaded connection with the first matching part.

In an embodiment, the first mating portion is integrally formed with the first ledge.

In one embodiment, the battery pack power-off module comprises an electronic device and an electrical connector, wherein the electronic device is arranged on the bearing base;

one end of the electric connecting piece is connected with the electronic device, and the other end of the electric connecting piece is used for being detachably connected with an external circuit.

In an embodiment, the electrical connector is provided with a first connection hole and a second connection hole, the first connection hole is located at one side of the electrical connector close to the electronic device, and the second connection hole is located at one side of the electrical connector far away from the electronic device; the battery pack further comprises a third fixing part which penetrates through the first connecting hole to be connected with the electronic device;

and a third matching part is arranged on one side of the second connecting hole away from the bottom cover plate.

In an embodiment, the electrical connector further includes a third connecting hole disposed between the first connecting hole and the second connecting hole, and the battery pack further includes a fourth fixing member fixedly connected with the carrying base through the third connecting hole.

In one embodiment, the battery pack further includes a cushion pad disposed between the bottom cover plate and the case frame.

In an embodiment, the battery pack further comprises an upper cover plate, wherein the upper cover plate is arranged on the bracket and the box frame, and the upper cover plate is fixedly connected with the box frame.

The embodiment of the utility model has the beneficial effects that:

in the embodiment of the utility model, the bottom cover plate is detachably sealed at the bottom of the box body frame; the bracket is arranged on one side of the box body frame far away from the bottom cover plate; the bearing base is arranged on one side of the bracket, which is close to the bottom cover plate. The detachable base is arranged on the support, a first matching part is arranged on a first lug of the support, a second lug of the base is arranged on one side of the first lug away from the first matching part, and then the first fixing part sequentially penetrates through the second lug and the first lug and is detachably connected with the first matching part, so that the bottom of the battery pack power-off module is detached, and the technical problem of difficulty in overhauling the battery pack power-off module is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view illustrating a cross-section of a battery pack according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a perspective view of a bracket of a battery pack according to an embodiment of the present utility model;

fig. 4 is a partial perspective view of a battery pack power-off module of a battery pack according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of an electrical connector of a battery pack according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

Referring to fig. 1, an embodiment of the present utility model provides a battery pack 100, which includes a case frame 10, a bottom cover plate 20, a bracket 30, a carrying base 40, and a battery pack power-off module 50.

The bottom cover 20 is detachably sealed to the bottom of the case frame 10. The bracket 30 is provided on a side of the case frame 10 remote from the bottom cover 20. The carrying base 40 is disposed on a side of the bracket 30 adjacent to the bottom cover plate 20. The load-bearing base 40 is detachably connected to the bracket 30. The battery pack power-off module 50 is disposed on the load-bearing base 40.

The bracket 30 includes a bracket body 31, a first lug 32, and a first fitting portion 33. The first lug 32 is connected to the bracket body 31, and the first fitting portion 33 is disposed at a side of the first lug 32 away from the bottom cover plate 20.

The load bearing base 40 includes a base body 41 and a second ledge 42. The second lug 42 is connected to the base body 41.

The second lug 42 is disposed on a side of the first lug 32 adjacent the bottom closure flap 20. The battery pack 100 further includes a first fixing member 61. Portions of the first fixing member 61 penetrate the second lugs 42, the first lugs 32, and are detachably connected with the first fitting portions 33.

In the present embodiment, since the first fixing member 61 passes through the second lugs 42, the first lugs 32 in this order from the bottom up, and then is detachably connected with the first fitting portion 33. When the battery pack needs to be overhauled, a maintainer does not need to detach the battery pack from the external main part, and only needs to detach the bottom cover plate 20, so that the bottom of the battery pack power-off module 50 can be detached, and the technical problem that the battery pack power-off module is difficult to overhaul is solved.

Alternatively, the external host may be a vehicle.

Alternatively, the first mating portion 33 is provided with a threaded hole, i.e. the first mating portion 33 may be a nut. The first fixing member 61 is a screw. The first fixing member 61 is screwed to the first fitting portion 33.

Alternatively, in some embodiments, the first fixing element 61 and the first mating portion 33 may be detachably connected by a snap fit or an interference fit.

Optionally, the first mating portion 33 is integrally formed with the first lug 32. By the arrangement, the assembly efficiency is improved, and the stability of the assembly and the assembly is also improved.

In some embodiments, the first mating portion 33 may also be welded, glued or snapped onto the first ledge 32.

In addition, since the bottom cover 20 cannot carry heavy articles, the bracket 30 is used to connect the carrying base 40.

Optionally, the battery pack 100 further includes a cushion 70, and the cushion 70 is disposed between the bottom cover plate 20 and the case frame 10.

The cushion pad 70 is made of a flexible material, which can prevent the bottom cover plate 20 and the case frame 10 from scraping or colliding with each other during assembly; meanwhile, the sealing effect is achieved, and the risk of water vapor invasion is reduced.

Optionally, the battery pack 100 further includes an upper cover 80, and the upper cover 80 is disposed on the bracket 30 and the case frame 10. The upper cover 80 is fixedly connected with the case frame 10.

The upper cover plate 80 is encapsulated on the upper surface of the bracket 30, and serves to protect the battery pack power-off module 50.

Referring to fig. 2, in the present embodiment, the bracket 30 further includes third lugs 34, and the third lugs 34 are connected to two side ends of the bracket main body 31. The third lug 34 is provided on the side of the tank frame 10 adjacent to the bottom deck 20.

The case frame 10 includes a frame body 11 and a second fitting portion 12 provided on a side of the frame body 11 remote from the bottom cover 20. The battery pack 100 further includes a second fixing member 62. Portions of the second fixing member 62 penetrate the third lugs 34 and the frame body 11 and are detachably connected to the second fitting portion 12.

Since the second fixing member 62 sequentially passes through the third lug 34 and the frame body 11 from bottom to top and is then detachably connected with the second fitting portion 12, the bottom detachment of the bracket 30 can be achieved, thereby improving the technical problem of difficulty in repairing the battery pack power-off module.

Referring to fig. 3, the stand body 31 includes a top plate 310, a first side plate 311 and a second side plate 312, wherein the first side plate 311 is disposed on opposite sides of the top plate 310. The second side plate 312 is disposed between the two first side plates 311 and is connected to the top plate 310.

The first lug 32 is connected to the first side plate 311 or the second side plate 312. The third lug 34 is connected to the first side plate 311 or the second side plate 312.

That is, the first and

second lugs

32 and 34 may be simultaneously connected to the first side plate 311 or the second side plate 312; alternatively, the first lug 32 may be connected to one of the first side plate 311 and the second side plate 312, and the third lug 34 may be connected to the other of the first side plate 311 and the second side plate 312.

The height of the first lugs 32 is greater than the height of the third lugs 34, based on the bottom cover plate 20.

It will be appreciated that since the bearing base 40 needs to occupy a certain space, the bracket 30 is connected to the frame 11 by the third lug 34 in the lower position, and is connected to the bearing base 40 by the first lug 32 in the higher position, so that the space is reasonably designed to provide the bearing base 40 on the bracket 30.

Optionally, a space is provided between the first side plate 311 and the second side plate 312. That is, the first side plate 311 and the second side plate 312 are not connected, and a gap is formed between the first side plate 311 and the second side plate 312, so that the positions of the first side plate 311 and the second side plate 312 can be finely adjusted, and the convenience of assembly is improved; the first side plate 311 and the second side plate 312 are also allowed to have a larger deformation space.

The third lug 34 is provided with a through hole 34a, and the second fixing member 62 is connected to the second fitting portion 12 through the through hole 34 a.

Optionally, the second mating portion 12 is provided with a threaded bore. The second fixing member 62 is a screw. The second fixing member 62 is screwed with the second fitting portion 12.

Alternatively, in some embodiments, the second fixing member 62 and the second mating portion 12 may be detachably connected by a snap fit or an interference fit.

Optionally, the second mating portion 12 is integrally formed with the third ledge 34. By the arrangement, the assembly efficiency is improved, and the stability of the assembly and the assembly is also improved.

In some embodiments, the second mating portion 12 may also be welded, glued or snapped onto the third ledge 34.

Optionally, the bracket body 31, the first lug 32 and the third lug 34 are integrally formed. In some embodiments, the bracket body 31 may also be fixedly connected to the first lug 32 and the third lug 34 by a mechanical connection.

Referring to fig. 4, a battery pack power-off module 50 includes electronics 51 and electrical connections 52. The electronics 51 are arranged on the carrier base 40.

One end of the electrical connector 52 is connected to the electronic device 51, and the other end of the electrical connector 52 is used for detachable connection with an external circuit.

That is, when the battery pack power-off module 50 needs to be disassembled, the outer ends of the electrical connectors 52 can be disassembled for easy maintenance.

Referring to fig. 5 and fig. 4, the electrical connector 52 is provided with a first connecting hole 52a and a second connecting hole 52b. The first connection hole 52a is located at a side of the electrical connector 52 close to the electronic device 51. The second connection hole 52b is located at a side of the electrical connector 52 remote from the electronic device 51. The battery pack 100 further includes a third fixing member 63, and the third fixing member 63 is connected with the electronic device 51 through the first connection hole 52 a.

The second coupling hole 52b is provided with a third fitting portion 53 at a side thereof remote from the bottom cover plate 20.

Alternatively, the electrical connection 52 may be an input and/or output pole connection. The electronic device 51 may be a high voltage electrical device.

When the second connection hole 52b is connected to the external high-voltage busbar, an external fixing member is used to detachably connect the third fitting portion 53 through the high-voltage busbar and the second connection hole 52b from bottom to top. The battery pack power down module 50 is easily removed from the bottom by an service person.

Alternatively, the third fitting portion 53 may be a nut. The third mating portion 53 may be integrally formed with the electrical connector 52, or may be mechanically fastened to the electrical connector 52.

Optionally, the electrical connector 52 further includes a third connection hole 52c disposed between the first connection hole 52a and the second connection hole 52b. The battery pack 100 further includes a fourth fixing member 64, and the fourth fixing member 64 is fixedly coupled to the load-bearing base 40 through the third coupling hole 52c.

In this embodiment, the fourth fixing component 64 is used to fix the electrical connector 52 on the carrying base 40, so as to play a role in fixing and avoid loosening the electrical connector 52.

Alternatively, the fourth fixing member 64 may be a screw such as a screw, a bolt, or the like; and may also be used for inserts, snaps, etc. that are in mating engagement with the load bearing base 40.

The embodiment of the utility model has the beneficial effects that:

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims

1. A battery pack, comprising

A box frame;

the battery pack power-off module is arranged on the bearing base;

2. The battery pack according to claim 1, wherein the bracket further comprises third lugs connected to both side ends of the bracket body; the third lug is arranged on one side of the box body frame, which is close to the bottom cover plate;

3. The battery pack of claim 2, wherein the height of the first ledge is greater than the height of the third ledge, based on the bottom cover plate.

4. The battery pack according to claim 3, wherein the stand body includes a top plate, a first side plate and a second side plate, the first side plate being disposed on opposite sides of the top plate in connection, the second side plate being disposed between the two first side plates and being connected to the top plate;

the first lug is connected to the first side wall or the second side plate, and the third lug is connected to the first side plate or the second side plate.

5. The battery pack of claim 4, wherein the first side plate is spaced apart from the second side plate.

6. The battery pack according to any one of claims 1 to 5, wherein the first fitting portion is provided with a screw hole; the first fixing part is in threaded connection with the first matching part.

7. The battery pack of any one of claims 1 to 5, wherein the first mating portion is integrally formed with the first tab.

8. The battery pack of any one of claims 1 to 5, wherein the battery pack de-energizing module comprises electronics and electrical connections, the electronics being disposed on the load-bearing base;

9. The battery pack of claim 8, wherein the electrical connector is provided with a first connection hole and a second connection hole, the first connection hole being located on a side of the electrical connector that is close to the electronic device, and the second connection hole being located on a side of the electrical connector that is far from the electronic device; the battery pack further comprises a third fixing part which penetrates through the first connecting hole to be connected with the electronic device;

10. The battery pack of claim 9, wherein the electrical connector further comprises a third connection aperture disposed between the first connection aperture and the second connection aperture, the battery pack further comprising a fourth securing member fixedly coupled to the load-bearing base through the third connection aperture.

11. The battery pack of claim 1, further comprising a cushion disposed between the bottom cover plate and the case frame.