CN218648054U

CN218648054U - Battery pack

Info

Publication number: CN218648054U
Application number: CN202223185787.2U
Authority: CN
Inventors: 何亚飞
Original assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Current assignee: Envision Power Technology Jiangsu Co Ltd; Envision Ruitai Power Technology Shanghai Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-17
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to a kind of battery pack, including at least two battery modules, the battery module extends along the first direction and arranges along the second direction perpendicular to the first direction, each battery module includes the casing and is located the electric core subassembly in the casing, two adjacent battery modules are equipped with first connecting piece and second connecting piece respectively along two sides that the second direction is relative to each other; the first connecting piece and the second connecting piece are matched with each other to limit the displacement of two adjacent battery modules in the second direction, so that the battery modules are prevented from moving in the shell.

Description

Battery pack

Technical Field

The utility model relates to a battery technology field, concretely relates to battery pack.

Background

In recent years, the appearance of new energy automobiles plays a great role in promoting social development and environmental protection, and the power battery pack serving as a rechargeable battery is a power source of the new energy automobiles and is widely applied to the field of the new energy automobiles.

In the prior art, a plurality of battery modules are usually assembled in a housing, and the housing can play a role in fixing and protecting, such as water resistance, fire resistance, pressure resistance and the like. In order to let the battery module can smoothly assemble to the shell, need have the assembly allowance between the assembly area in battery module and the shell, if the assembly allowance undersize then can provide the degree of difficulty of assembly, and if the assembly allowance then can lead to the battery module to take place the drunkenness in the shell, need additionally fix the battery module, not only increased the assembly degree of difficulty of battery package, still reduced the efficiency of assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery package, the design has connection structure to restrict the drunkenness between the adjacent battery module between the battery module of this battery package.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a battery pack, comprising:

the battery module comprises at least two battery modules, a first connecting piece and a second connecting piece, wherein the battery modules extend along a first direction and are arranged along a second direction perpendicular to the first direction; the first connecting piece and the second connecting piece are matched with each other to limit the displacement of the two adjacent battery modules in the second direction.

In one embodiment, the first connecting member is provided with an insertion portion extending along a third direction, the second connecting member is provided with a receiving portion extending along the third direction, the insertion portion is located in the receiving portion, and the third direction is perpendicular to the first direction and the second direction.

In one embodiment, the insertion portion is a convex strip extending along the first direction, the accommodating portion is a concave groove extending along the first direction, and the length of the accommodating portion along the first direction is not less than the length of the insertion portion along the first direction.

In one embodiment, the first connector includes a protrusion extending from a sidewall of the housing, and the insertion portion extends from the protrusion.

In one embodiment, the second connector includes a first extension extending from a sidewall of the housing and a second extension extending from the first extension in the third direction, the first extension, the second extension, and the sidewall of the housing collectively defining the recess.

In one embodiment, the insertion portion is a protruding strip extending along the first direction, the second connector includes a first extending portion extending from a sidewall of the housing, and the receiving portion is a through hole penetrating through the first extending portion along the third direction.

In one embodiment, the insertion portion is a plurality of protruding strips, the protruding strips are arranged at intervals along the first direction, the accommodating portion is a plurality of through holes, and the protruding strips extend into the through holes respectively.

In one embodiment, the first connector includes a protruding portion extending from a sidewall of the housing in the second direction, and the insertion portion extends from the protruding portion in a third direction.

In one embodiment, the protruding portion extends in the second direction from one end of the housing in the third direction, and the insertion portion extends toward the other end of the housing in the third direction; the first extension is spaced apart from the one end.

In one embodiment, the protruding portion is spaced apart from one end of the housing in the third direction, the insertion portion extending toward the one end; the first extension portion extends in the second direction from one end of the housing in the third direction.

The utility model adopts the above technical scheme, the beneficial effect who has is, the utility model provides a battery package is equipped with first connecting piece and second connecting piece respectively in two adjacent battery module sides relative each other along the second direction, and first connecting piece and second connecting piece can cooperate each other to restrict the displacement of two adjacent battery modules in the second direction, two adjacent battery module drunkenness in the second direction have been avoided, therefore battery module and shell can have great assembly allowance, so as to make things convenient for the installation of battery module, avoid battery module to take place the drunkenness in the shell through first connecting piece and second connecting piece cooperation simultaneously, need not additionally fix the battery module, the assembly degree of difficulty of battery package can be reduced, simultaneously can also improve the efficiency of assembly.

Drawings

Fig. 1 shows a schematic diagram of a battery pack according to an embodiment of the present invention.

Fig. 2 shows a schematic perspective view of two adjacent battery modules according to an embodiment of the present invention when they are connected to each other.

Fig. 3 is a schematic front view illustrating the connection between two adjacent battery modules according to an embodiment of the present invention.

Fig. 4 shows an enlarged view at a in fig. 3.

Fig. 5 shows a first structural schematic diagram of the interconnection of the first connecting member and the second connecting member according to an embodiment of the present invention.

Fig. 6 shows a second structural diagram of the interconnection of the first connecting member and the second connecting member according to an embodiment of the present invention.

Fig. 7 shows a third structural diagram of the interconnection of the first connecting member and the second connecting member according to an embodiment of the present invention.

Reference numerals are as follows: 100. a battery pack; 1. a battery module; 10. a housing; 21. a first connecting member 211, an insertion portion; 212. a protruding portion; 22. a second connecting member; 221. an accommodating portion; 222. a first extension portion; 223. a second extension portion; 3. a box body.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment can be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising", will be understood to have an open, inclusive meaning, i.e., will be interpreted to mean "including, but not limited to", unless the context requires otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

As shown in fig. 1 to 4, the present embodiment provides a battery pack, the battery pack 100 includes a case 3 and at least two battery modules 1 installed in the case, and the external shape of the case can be determined according to actual needs, for example, the case has a rectangular parallelepiped structure. The battery modules 1 extend along a first direction and are arranged along a second direction perpendicular to the first direction, each battery module 1 comprises a shell 10 and an electric core assembly positioned in the shell 10, and two side surfaces, opposite to each other, of two adjacent battery modules 1 along the second direction are respectively provided with a first connecting piece 21 and a second connecting piece 22. In the present embodiment, referring to fig. 2, the first direction is the length direction of the battery module 1, the second direction is the width direction of the battery module 1, and the third direction in the afternoon is the height direction of the battery module 1.

First connecting piece 21 and second connecting piece 22 cooperate each other to restrict the displacement of two adjacent battery modules 1 in the second direction, the drunkenness of two adjacent battery modules in the second direction has been avoided, therefore battery module and shell can have great assembly allowance, with the installation of convenient battery module, avoid battery module to take place the drunkenness in the shell through first connecting piece and second connecting piece cooperation simultaneously, need not fix battery module extra, the assembly degree of difficulty of battery package can be reduced, can also improve the efficiency of assembly simultaneously.

Referring to fig. 3 and 4, the first connecting member 21 is provided with an insertion portion 211 extending in a third direction, the second connecting member 22 is provided with a receiving portion 221 extending in the third direction, the insertion portion 211 is located in the receiving portion 221, and the third direction is perpendicular to the first direction and the second direction. Since the insertion portion 211 of the first connecting member 21 protrudes into the receiving portion 221 of the second connecting member 22 in the third direction, the first connecting member 21 and the second connecting member 22 can cooperate with each other to limit the displacement of the adjacent two battery modules 1 in the second direction; meanwhile, when the battery module is installed, the first connecting piece 21 on the battery module 1 is only required to be aligned with the second connecting piece 22 of the adjacent battery module 1, and the third direction is placed into the box body to enable the inserting portion 211 of the two adjacent battery modules 1 to extend into the accommodating portion 221, so that the positioning and limiting of the two battery modules 1 in the second direction can be realized, and the battery modules 1 are conveniently assembled in the box body.

As a first structure of the first connecting member 21 and the second connecting member 22, referring to fig. 5, the insertion portion 211 of the first connecting member 21 is a convex strip extending along the first direction, the accommodating portion 221 of the second connecting member 22 is a concave groove extending along the first direction, the length of the accommodating portion 221 along the first direction is not less than the length of the insertion portion 211 along the first direction, and the convex strip extends into the concave groove to limit the displacement of two adjacent battery modules 1 in the second direction. Preferably, the first connecting member 21 includes a protruding part 212, the protruding part 212 extending from a sidewall of the housing 10 of the battery module 1 in the second direction, and the insertion part 211 extending from the protruding part 212 in the third direction. The second connector 22 includes a first extension 222 and a second extension 223, the first extension 222 extending from a sidewall of the case 10 of the battery module 1 in the second direction, the second extension 223 extending from the first extension 222 in the third direction, the first extension 222, the second extension 223 and the sidewall of the case 10 collectively defining a groove.

As a second structure of the first and

second connection members

21 and 22, referring to fig. 6 and 7, the insertion portion 211 of the first connection member 21 is a convex strip extending in the first direction, the second connection member 22 includes a first extension portion 222, the first extension portion 222 extends from the sidewall of the housing 10 of the battery module 1 in the second direction, and the receiving portion 221 of the second connection member 22 is a through hole penetrating the first extension portion 222 in the third direction. The size and the number of the convex strips are corresponding to those of the through holes, and each convex strip is inserted into the corresponding through hole to limit the displacement of the two adjacent battery modules 1 in the second direction. Preferably, the insertion portion 211 is a plurality of protruding strips, the protruding strips are arranged at intervals along the first direction, the corresponding accommodating portions 222 are also a plurality of through holes, and the protruding strips extend into the corresponding through holes respectively.

More preferably, the first connector 21 includes a protruding portion 212, the protruding portion 212 extends from the sidewall of the housing 10 in the second direction, and the insertion portion 211 extends from the protruding portion 212 in the third direction. The arrangement of the first link 21 and the second link 22 may be as shown in fig. 6, in which the protruding portion 212 extends in the second direction from one end of the housing 10 in the third direction, and the insertion portion 211 extends toward the other end of the housing 10 in the third direction; the first extension 222 is spaced apart from one end of the housing 10 opposite the battery module 1.

The first link 21 and the second link 22 may be provided as shown in fig. 7, in which the protruding portion 212 is spaced apart from one end of the housing 10 in the third direction, and the insertion portion 211 extends toward the one end; the first extension 222 extends in the second direction from one end of the housing 10 in the third direction.

It is further preferred that the length of the insertion portion 211 in the third direction is equal to the sum of the distance from the protrusion 212 to the first extension 222 and the size of the first extension 222 in the third direction.

In addition, the first and second connecting

members

21 and 22 of both structures may be integrally formed with the housing 10 of the corresponding battery module 1. In the prior art, the housing 10 of the battery module 1 is usually a profile made of an aluminum alloy material by extrusion molding, the first connecting member 21 and the second connecting member 22 can be directly formed on the outer side surface of the housing during the extrusion molding of the housing, and the through holes of the second connecting member 22 can be formed by punching or other conventional machining after the housing is formed.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications of the invention can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. A battery pack, comprising:

2. The battery pack according to claim 1, wherein the first coupling member is provided with an insertion portion extending in a third direction, the second coupling member is provided with a receiving portion extending in the third direction, the insertion portion is located in the receiving portion, and the third direction is perpendicular to the first direction and the second direction.

3. The battery pack according to claim 2, wherein the insertion portion is a convex strip extending in the first direction, the receiving portion is a concave groove extending in the first direction, and a length of the receiving portion in the first direction is not smaller than a length of the insertion portion in the first direction.

4. The battery pack of claim 3, wherein the first connector includes a protrusion extending from a sidewall of the housing, the insert extending from the protrusion.

5. The battery pack of claim 4, wherein the second connector includes a first extension extending from a sidewall of the housing and a second extension extending from the first extension in the third direction, the first extension, the second extension, and the sidewall of the housing collectively defining the groove.

6. The battery pack according to claim 2, wherein the insertion portion is a rib extending in the first direction, the second connector includes a first extension extending from a sidewall of the case, and the receiving portion is a through hole extending through the first extension in the third direction.

7. The battery pack of claim 6, wherein the insertion portion is a plurality of ribs spaced apart along the first direction, the receiving portion is a plurality of through holes, and the plurality of ribs extend into the plurality of through holes, respectively.

8. The battery pack of claim 7, wherein the first connector includes a protrusion extending from a sidewall of the housing in the second direction, and the insert extends from the protrusion in a third direction.

9. The battery pack according to claim 8, wherein the protruding portion extends in the second direction from one end of the case in the third direction, and the insertion portion extends toward the other end of the case in the third direction; the first extension is spaced apart from the one end.

10. The battery pack according to claim 8, wherein the protruding portion is spaced apart from one end of the case in the third direction, the insertion portion extending toward the one end; the first extension portion extends in the second direction from one end of the housing in the third direction.