CN212676379U

CN212676379U - Battery module and battery pack

Info

Publication number: CN212676379U
Application number: CN202021277888.0U
Authority: CN
Inventors: 卢勇; 任宇航; 李立国; 田硕; 华剑锋; 孟庆然
Original assignee: Suzhou Key New Power Technology Co ltd
Current assignee: Suzhou Key New Power Technology Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-09
Anticipated expiration: 2030-07-03

Abstract

The utility model provides a battery module and a battery pack, wherein the battery module comprises a battery pack and two end plates, wherein the battery pack comprises at least one battery cell; the two end plates are respectively arranged at two ends of the battery pack, the bottom mounting surface of the end plate in the vertical direction is higher than the bottom surface of the battery pack, and an avoiding space for avoiding the bottom beam is formed in the area between the bottom mounting surface of the end plate and the bottom surface of the battery pack. By adopting the scheme, the avoiding space for avoiding the bottom beam is formed in the area between the bottom mounting surface of the end plate and the bottom surface of the battery pack, so that the bottom beam can be avoided through the avoiding space after the battery module is placed into the box body, interference can not occur, and the overall height of the bottom beam and the battery module is reduced. Compared with the prior art, after the battery module uses the higher electric core, under the condition that the height of the bottom beam is not reduced or the height of the box body is improved, the battery module can still be arranged in the box body, and therefore the compactness and the energy storage performance of the battery pack are improved.

Description

Battery module and battery pack

Technical Field

The utility model relates to a battery module technical field particularly, relates to a battery module and battery package.

Background

Generally, a bottom beam with certain mechanical strength is arranged at the bottom of the battery box body and used for fixing the battery module. Because the bottom beam has a certain height, the problem of selecting the battery cell with a completely proper size and meeting the performance requirement is solved under the condition that the height of the bottom beam cannot be reduced or the height of the box body cannot be increased. Often can discover to have the electric core that satisfies the performance requirement but the size is bigger than normal slightly when selecting electric core, to the battery module that contains this type of electric core, the bottom of battery module can interfere with the floorbar, can't pack into the box in. It is necessary to optimally design the existing battery module.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery module and battery package to make the battery module match with the floorbar better, thereby make the battery package pack into the great electric core of size under the condition that does not increase the height.

In order to achieve the above object, according to an aspect of the present invention, the present invention provides a battery module, including: a battery pack including at least one cell; the casing, set up in the casing the group battery, the casing includes two end plates, two the end plate sets up respectively the both ends of group battery are in vertical direction the bottom surface of end plate is higher than the bottom surface of group battery, the bottom installation face of end plate with the region between the bottom surface of group battery forms the space of dodging the floorbar.

Further, the housing further comprises: the two ends of the side plate are respectively connected with the two end plates; the battery pack is characterized in that the number of the side plates is two, the two side plates are arranged at intervals, and the battery pack is located in an area formed by the two end plates and the two side plates in a surrounding mode.

Further, the side plate has a bottom flange supporting a bottom surface of the battery pack and a side flange connected to the end plate.

The utility model discloses an on the other hand provides a battery package, the battery package includes box, battery module and floorbar, the battery module is foretell battery module, the floorbar sets up on the diapire of box, the battery module sets up in the cavity of box, wherein, the floorbar with the space matching of dodging of battery module.

Furthermore, the bottom beam protrudes out of the bottom wall of the box body, and the bottom mounting surface of the end plate of the battery module is connected with the bottom beam.

Further, the battery pack further comprises a bolt and a nut, the nut is fixed on the bottom beam, the bolt penetrates through the end plate and the bottom beam, and the bolt is connected with the nut.

Further, the bottom beams are two, a groove is formed between the two bottom beams and the bottom wall of the box body, and the bottom surface of the battery cell in the battery module is located in the groove.

The technical scheme of the utility model is applied to provide a battery module, which comprises a battery pack and a shell, wherein the battery pack comprises at least one battery cell; the battery pack is arranged in the shell, the shell comprises two end plates, the two end plates are respectively arranged at two ends of the battery pack, the bottom mounting surface of the end plate in the vertical direction is higher than the bottom surface of the battery pack, and an avoiding space for avoiding the bottom beam is formed in the area between the bottom mounting surface of the end plate and the bottom surface of the battery pack. By adopting the scheme, the avoidance space for avoiding the bottom beam is formed in the area between the bottom surface of the end plate and the bottom surface of the battery pack, so that the bottom beam can be avoided through the avoidance space after the battery module is placed into the box body, interference can not occur, and the overall height of the bottom beam and the battery module is reduced. Compared with the prior art, after the battery module uses the higher electric core, under the condition that the height of the bottom beam is not reduced or the height of the box body is improved, the battery module can still be arranged in the box body, and therefore the compactness and the energy storage performance of the battery pack are improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a battery pack provided by an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a battery pack; 20. an end plate; 21. avoiding a space; 30. a side plate; 31. folding the bottom edge; 32. folding the edges laterally; 40. a box body; 50. a bottom beam.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in the accompanying drawings, embodiments of the present invention provide a battery module, including: a battery pack 10, the battery pack 10 including at least one cell; a housing, set up in the casing group battery 10, the casing includes two end plates 20, two end plates 20 set up respectively the both ends of group battery 10, in vertical direction end plate 20's bottom mounting surface is higher than the bottom surface of group battery 10, end plate 20's bottom mounting surface with regional formation between the bottom surface of group battery 10 dodges the space 21 of dodging floorbar 50.

By adopting the scheme, the area between the bottom mounting surface of the end plate 20 and the bottom surface of the battery pack 10 forms the avoiding space 21 for avoiding the bottom beam 50, so that the battery module can avoid the bottom beam 50 through the avoiding space 21 after being placed in the box body 40, interference can not occur, and the overall height of the bottom beam 50 and the battery module is reduced. Compared with the prior art, after the battery module uses the higher electric core, the battery module still can be put into the box 40 under the condition of not reducing the height of the bottom beam 50 or improving the height of the box 40, thereby improving the compactness and the energy storage performance of the battery pack.

In the present embodiment, there are two end plates 20, the two end plates 20 are disposed at intervals, and the battery pack 10 is located between the two end plates 20. By providing the two end plates 20, both sides of the battery pack 10 can be supported and fixed, respectively.

Alternatively, the end plate 20 includes a plate body and a positioning protrusion provided on a bottom mounting surface of the plate body, a lower surface of the plate body is a bottom surface of the end plate 20, and a lower surface of the positioning protrusion is flush with a bottom surface of the battery pack 10. The positioning projection is one or more, by which positioning of the end plate 20 can be facilitated at the time of assembly.

In this embodiment, the case in the battery module further includes: and a side plate 30, wherein both ends of the side plate 30 are respectively connected with the two end plates 20. Can improve battery module's structural strength through setting up the curb plate.

In the present embodiment, the number of the side plates 30 is two, the two side plates 30 are disposed at intervals, and the battery pack 10 is located in an area surrounded by the two end plates 20 and the two side plates 30. This can further improve the stability of the battery module.

Specifically, the side plate 30 has a bottom flange 31 and a side flange 32, wherein the bottom flange 31 supports the bottom surface of the battery pack 10 and the lower surface of the positioning protrusion, and the side flange 32 is coupled to the end plate 20. This allows the battery pack 10 to be supported and the end plate 20 to be positioned by the bottom folded edge 31 of the side plate 30. The connection of the side panels 30 to the end panels 20 is accomplished by side flaps 32. Specifically, the side flaps 32 and the end plate 20 may be welded or connected by fasteners.

Another embodiment of the utility model provides a battery pack, battery pack include box 40, battery module and floorbar 50, and the battery module is foretell battery module, and floorbar 50 sets up on the diapire of box 40, and the battery module sets up in the cavity of box 40, and wherein, the space 21 matches of dodging of floorbar 50 and battery module. In this case, the structural strength of the battery pack can be improved by the base beam 50. Because the battery module is provided with the avoiding space 21, at least a part of the structure of the bottom beam 50 can be assembled in the avoiding space 21 during assembly, so that interference can not occur, and the overall height of the bottom beam 50 and the battery module is reduced. Compared with the prior art, after the battery module uses the higher electric core, the battery module still can be put into the box 40 under the condition of not reducing the height of the bottom beam 50 or improving the height of the box 40, thereby improving the compactness and the energy storage performance of the battery pack.

In the present embodiment, the bottom beams 50 protrude from the bottom wall of the case 40, and the bottom mounting surfaces of the end plates 20 of the battery module are connected to the bottom beams 50. The bottom mounting surface of the end plate 20 of the battery module is connected to the bottom beam 50, so that the battery module can be fixed, and the structural strength is improved.

Specifically, the battery pack further includes a bolt and a nut, the nut being fixed to the bottom beam 50, the bolt passing through the end plate 20 and the bottom beam 50, the bolt being coupled with the nut. So set up, be convenient for assemble the battery package to structural strength is high. Alternatively, the end plate 20 may be connected to the bottom beam 50 by welding.

Optionally, the bottom beam 50 includes first, second, third, and fourth flaps connected in series, wherein the first flap is connected to a side wall of the carton 40, the fourth flap is connected to a bottom wall of the carton 40, and the second flap is spaced apart from the bottom wall of the carton 40. This arrangement can improve the structural strength of the bottom beam 50, and can facilitate the connection of the bottom beam 50 to the box body 40. Wherein, a nut can be arranged below the second folded plate. The bottom beam 50 may be connected to the case 40 by welding. The bottom beams 50 may be provided in two, and the two bottom beams 50 are respectively matched with the two avoiding spaces 21 of the battery module.

In this embodiment, there are two bottom beams 50, a groove is formed between the two bottom beams 50 and the bottom wall of the box 40, and the bottom surface of the battery cell in the battery module is located in the groove. A plurality of battery modules and a plurality of bottom beams 50 may also be provided in the battery pack, each battery module being fitted with two bottom beams 50.

Further, the bottom surface of the battery module is spaced apart from the bottom wall of the case 40. This eliminates manufacturing tolerances and ensures a secure connection of the end plate 20 to the bottom beam 50. The distance between the bottom surface of the battery module and the bottom wall of the case 40 is not less than 1 mm.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

Claims

1. A battery module, comprising:

a battery pack (10), the battery pack (10) comprising at least one cell;

the casing, set up in the casing group battery (10), the casing includes two end plates (20), two end plate (20) set up respectively the both ends of group battery (10), in vertical direction the bottom mounting surface of end plate (20) is higher than the bottom surface of group battery (10), the bottom installation face of end plate (20) with regional formation between the bottom surface of group battery (10) dodges space (21) of dodging floorbar (50).

2. The battery module according to claim 1, wherein the housing further comprises:

the two ends of the side plate (30) are respectively connected with the two end plates (20); the number of the side plates (30) is two, the two side plates (30) are arranged at intervals, and the battery pack (10) is located in an area formed by the two end plates (20) and the two side plates (30) in a surrounding mode.

3. The battery module according to claim 2, wherein the side plates (30) have bottom flaps (31) and side flaps (32), wherein the bottom flaps (31) support the bottom surface of the battery pack (10), and the side flaps (32) are connected to the end plates (20).

4. A battery pack, characterized in that the battery pack comprises a case (40), a battery module according to any one of claims 1 to 3, and a bottom beam (50), wherein the bottom beam (50) is disposed on a bottom wall of the case (40), and the battery module is disposed in a cavity of the case (40), wherein the bottom beam (50) is matched with an escape space (21) of the battery module.

5. The battery pack according to claim 4, wherein the bottom beams (50) protrude from the bottom wall of the case (40), and the bottom mounting surfaces of the end plates (20) of the battery module are connected to the bottom beams (50).

6. The battery pack according to claim 5, further comprising a bolt and a nut, the nut being fixed to the bottom beam (50), the bolt passing through the end plate (20) and the bottom beam (50), and the bolt being connected to the nut.

7. The battery pack according to claim 4, wherein the number of the bottom beams (50) is two, a groove is formed between the two bottom beams (50) and the bottom wall of the box body (40), and the bottom surface of the battery cell in the battery module is located in the groove.