CN213816362U

CN213816362U - Battery module

Info

Publication number: CN213816362U
Application number: CN202120012219.9U
Authority: CN
Inventors: 朱圣法; 白玉龙; 李登科; 付方凯; 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: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-07-27
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses a battery field. The utility model discloses in, the battery module includes: the battery comprises a shell, a plurality of battery cells arranged in the shell, and at least one busbar which is arranged in the shell and used for positioning the battery cells; the shell comprises two oppositely arranged cover plates and two oppositely arranged end plates, each end plate is connected with the two cover plates, and the two end plates are respectively arranged at the two ends of each cover plate; the busbar is arranged opposite to the end plate, and the busbar has: the battery comprises a busbar body through which the lugs of the battery cell penetrate and at least one extension plate formed by extending the busbar body, wherein the extension plate is provided with a connecting piece connected with any cover plate. Compared with the prior art, the fixing device has the advantages that the bus bar is fixed simply and conveniently, and the battery module is firmer.

Description

Battery module

Technical Field

The utility model relates to a battery field, in particular to battery module.

Background

In recent years, the appearance of new energy automobiles plays a great role in promoting social development and environmental protection, and a power battery pack is a rechargeable battery, is a power source of the new energy automobiles, and is widely applied to the field of the new energy automobiles. Have a plurality of battery modules in the current battery package, each battery module includes shell, a plurality of electric cores of establishing ties and the busbar that passes by the utmost point ear of each electric core. At present most of modules do not fix the busbar subassembly, lean on the electric core utmost point ear after the welding to lock, perhaps accomplish the back at the assembly, through the fixed busbar subassembly of forms such as encapsulating, though can fix the busbar subassembly, nevertheless hindered soft package thermal runaway protective effect, and fixed loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery module for simple convenient fixing the busbar, and let battery module more firm.

In order to solve the above technical problem, an embodiment of the present invention provides a battery module, including: the battery comprises a shell, a plurality of battery cells arranged in the shell, and at least one busbar arranged in the shell and used for positioning the battery cells; the shell comprises two oppositely arranged cover plates and two oppositely arranged end plates, each end plate is connected with the two cover plates, and the two end plates are respectively arranged at two ends of each cover plate; the busbar is disposed opposite to the end plate, the busbar having: the battery comprises a busbar body through which the lugs of the battery core penetrate and at least one extension plate formed by extending the busbar body, wherein the extension plate is provided with a connecting piece connected with any one cover plate.

In an embodiment, the extension plate and the bus bar body are located on the same plane and are formed by extending the bus bar body towards any one of the cover plate directions, wherein the connecting member is connected with the cover plate in the extension direction of the extension plate where the connecting member is located.

In one embodiment, the cover plate has a slot, and the connector is inserted into the slot.

In one embodiment, the connector is a snap; wherein the catch extends inwardly of the housing.

In one embodiment, the end of the clip has a hook for hooking the side wall of the slot.

In an embodiment, at least a portion of the cover plate is bent toward the inside of the housing to form a first bent portion, and the engaging groove is disposed on the first bent portion.

In one embodiment, a plurality of first bending parts are arranged on the cover plate;

the extension plate is provided with a plurality of buckles.

In one embodiment, the extension plate is provided with a limiting protrusion;

the cover plate connected with the extension plate is provided with a positioning hole for inserting the limiting protrusion.

In an embodiment, at least a portion of the cover plate is bent toward the inside of the housing to form a second bent portion, and the positioning hole is formed in the second bent portion.

In an embodiment, the number of the extension plates is two, and the two extension plates are respectively arranged at two ends of the busbar body facing the two cover plates.

The utility model discloses embodiment is for prior art, because the busbar has busbar body and extension board, has the connecting piece on the extension board, when the installation busbar, the connecting piece is installed along with the busbar and is linked to each other with the apron, lets busbar and apron fixed mutually to quick convenient fixing the busbar, it is more stable firm to let the battery module.

Drawings

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

fig. 2 is an exploded view of a battery module according to an embodiment of the present invention;

FIG. 3 is an exploded view of a portion of the components of FIG. 2 at another angle;

FIG. 4 is an enlarged view of a portion of FIG. 3;

fig. 5 is a schematic structural view illustrating a cover plate of a battery module according to an embodiment of the present invention;

FIG. 6 is a partial enlarged view of B in FIG. 5;

100, a battery module; 1. a housing; (ii) a 11. An end plate; 12. an end plate; 13. a cover plate; 14. a cover plate; 15. a side plate; 16. a side plate; 2. an electric core; 3. a bus bar; 31. a busbar body; 32. an extension plate; 33. an extension plate; 4. a bus bar; 5. a connecting member; 51. a first buckle body; 52. a second buckle body; 6. a card slot; 7. a first bent portion; 70. a second bent portion; 8. a limiting bulge; 9. and (7) positioning the holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

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

Various 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.

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.

Embodiments of the present invention are described below with reference to the drawings. As shown in fig. 1 and 2, the battery module 100 includes: the battery comprises a shell 10, and a plurality of battery cells 2, a bus bar 3 and a bus bar 4 which are arranged in the shell 10. The housing 10 includes: the battery cell comprises an end plate 11 and an end plate 12 which are arranged oppositely, a cover plate 13 and a cover plate 14 which are arranged oppositely, and a side plate 15 and a side plate 16 which are arranged oppositely, wherein the end plate 11, the side plate 15, the end plate 12 and the side plate 16 are sequentially connected to form an accommodating cavity for accommodating the battery cell 2, and the cover plate 13 and the cover plate 14 seal the accommodating cavity. The battery cells 2 are sequentially arranged from the side plate 15 to the side plate 16, the battery cells 2 are connected in series, the tab on one side of each battery cell 2 faces the end plate 11, and the tab on the other side faces the end plate 12. The busbar 3 is arranged in the casing 10, is arranged opposite to the end plate 11, is close to the end plate 11, and the pole ear of the battery cell 2 facing to the end plate 11 passes through the busbar 3 and is connected with the terminal plate by copper bars. The busbar 4 is arranged in the casing 10, is arranged opposite to the end plate 12, is close to the end plate 12, and a tab of the battery cell 2 facing the end plate 12 penetrates through the busbar 4 to be connected through copper bars. Each of the busbars has: the battery core comprises a bus bar body through which the pole lugs of the battery core 2 penetrate, and at least one extension plate formed by extending the bus bar body, wherein a connecting piece connected with any one cover plate is arranged on the extension plate.

Specifically, the bus bars have the same structure, and now taking the bus bar 3 as an example, the bus bar 3 has: the bus bar comprises a bus bar body 31 and

extension plates

32 and 33 connected with the bus bar body 31, wherein the

extension plates

32 and 33 are arranged oppositely and are on the same plane with the bus bar body 31. The

extension plates

32 and 33 may be integrally formed or may be joined to the busbar body 31. The extension plate 32 extends in the direction of the cover plate 13, and the extension plate 33 extends in the direction of the cover plate 14. The extension plate 32 is connected to the cover plate 13, the extension plate 33 is connected to the cover plate 14, and the structure in which the extension plate 32 is connected to the cover plate 13 and the extension plate 33 is connected to the cover plate 14 may be the same. Now, the structure of the extension plate 32 connected to the cover plate 13 will be described in detail, the extension plate 32 is provided with a plurality of connecting members 5, and the plurality of connecting members 5 are connected to the cover plate 13. Of course, there may be 1 connecting member 5.

It is understood that a plurality of the battery cells 2 may be provided, and one battery cell may also be provided. The number of the bus bars may be 2 or only one. One of the busbars may have 1 or 2 or more extension plates. When the number of the extension plates of one bus bar is 3 or more than 3, 2 extension plates may be arranged together in the longitudinal direction.

Further, as shown in fig. 3 and 4, the cover plate 13 has a catching groove 6 formed therein, and the connector 5 is inserted into the catching groove 6. The connecting piece 5 is a buckle which extends towards the inside of the shell. The end of the buckle is provided with a hook body for hooking the side wall of the clamping groove 6, the buckle comprises a first buckle body 51 and a second buckle body 52 arranged opposite to the first buckle body 51, the first buckle body 51 and the second buckle body 52 can be extruded to enter the clamping groove 6 in a manner of being close to each other, the first buckle body 51 and the second buckle body 52 are extruded by the side wall of the clamping groove 6 to generate extrusion force for extruding the side wall of the clamping groove 6, the end parts of the first buckle body 51 and the second buckle body 52 are provided with hook bodies for hooking the side wall of the clamping groove 6, and the extension plate 32 is connected with the cover plate 13. The clip is a plastic or plastic component, and can be integrally formed with the extension plate 32. It will be appreciated that the connecting portion may also be a projecting cylinder or the like. Or the connecting part is a concave area, and the cover plate 13 is provided with a convex column part inserted into the concave area.

Further, as shown in fig. 4, 5 and 6, a bent portion 7 is formed on the cover plate 13 at least partially bent toward the inside of the housing, and the locking groove 6 is formed on the bent portion 7, so as to facilitate the insertion of the connecting portion into the locking groove 6.

In addition, a plurality of buckles are arranged on the extension plate 32, a plurality of clamping grooves 6 are arranged, and one buckle is clamped into one clamping groove 6. The bending parts 7 are provided with a plurality of bending parts, and one bending part 7 is provided with a clamping groove 6.

Further, as shown in fig. 3, 4, 5 and 6, the extending plate 32 has a limiting protrusion 8 thereon, and the cover plate 13 is provided with a positioning hole 9 for inserting the limiting protrusion 8, so that the extending plate 32 can be conveniently positioned. The limiting protrusions 8 can be provided in plurality, and the positioning holes 9 can also be provided in plurality.

As shown in fig. 3, 4, 5 and 6, a second bent portion 70 is formed by bending at least a portion of the cover 13 toward the inside of the housing 1, and the positioning hole 9 is opened in the second bent portion 70. There are a plurality of positioning holes 9, and there are a plurality of second bending portions 70, so that one positioning hole 9 can be opened on one second bending portion 70.

It will be appreciated that the stop projection could also be provided on the cover plate 13 with the locating hole in the extension plate 32.

Further, the battery module can be provided with a plurality of battery packs which are placed in the mounting shell to form the energy vehicle.

While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

Claims

1. A battery module, comprising: the battery comprises a shell, a plurality of battery cells arranged in the shell, and at least one busbar arranged in the shell and used for positioning the battery cells; the shell comprises two oppositely arranged cover plates and two oppositely arranged end plates, each end plate is connected with the two cover plates, and the two end plates are respectively arranged at two ends of each cover plate; the busbar is disposed opposite to the end plate, the busbar having: the battery comprises a busbar body through which the lugs of the battery cell penetrate and at least one extension plate formed by extending the busbar body, wherein the extension plate is provided with a connecting piece connected with any one cover plate.

2. The battery module according to claim 1, wherein the extension plate is located on the same plane as the bus bar body and is formed by extending the bus bar body toward any one of the cover plates, and wherein the connecting member is connected to the cover plate in the extension direction of the extension plate where the connecting member is located.

3. The battery module according to claim 2, wherein the cap plate has a catching groove formed thereon, and the connecting member is inserted into the catching groove.

4. The battery module according to claim 3, wherein the connecting member is a snap; wherein the catch extends inwardly of the housing.

5. The battery module according to claim 4, wherein an end of the catch has a hook body for hooking a side wall of the card slot.

6. The battery module according to claim 4, wherein the cover plate is at least partially bent toward the inside of the housing to form a first bent portion, and the engaging groove is formed on the first bent portion.

7. The battery module according to claim 6, wherein the cover plate has a plurality of first bent portions;

the extension plate is provided with a plurality of buckles.

8. The battery module according to claim 1, wherein the extension plate has a stopper protrusion thereon;

9. The battery module according to claim 8, wherein the cover plate is bent at least partially toward the inside of the housing to form a second bent portion, and the positioning hole is formed in the second bent portion.

10. The battery module according to claim 1, wherein the extending plates are provided in two, and the two extending plates are respectively provided at both ends of the busbar body facing the two cover plates.