CN211980691U

CN211980691U - Battery module

Info

Publication number: CN211980691U
Application number: CN202020708073.7U
Authority: CN
Inventors: 郭家豪; 张国祥; 徐博豪; 潘安金; 侯永坤; 江吉兵
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-20
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a battery module, including two end plates, two at least electric core groups and at least one baffle, every electric core group includes a plurality of electric cores, and the baffle setting is between two adjacent electric core groups, and the both sides of baffle are laminated with the side of an electric core group respectively, and two end plates set up the one end at the electric core group respectively, and the end plate is bow-shaped, and the end plate is provided with a plurality of strengthening ribs including the flat board and the arc that are connected between flat board and the arc, and the one end laminating of flat board and electric core group, the both ends of baffle are connected with an end plate respectively. The utility model discloses a battery module adopts the structure of end plate and baffle collocation, and a baffle forms the frame construction of I shape with two end plates, is arcuate end plate and has higher intensity and the ability of resisting the deformation, can satisfy double electric core and even the intensity needs of the big module of multirow electric core, and the battery module is difficult for taking place to warp because of the inflation of electric core.

Description

Battery module

Technical Field

The utility model relates to a battery technology field especially relates to a battery module that structural strength is high.

Background

What current big module structure adopted is curb plate and end plate welded mode, this kind of structure increases along with the size of module, the length of structure increases thereupon, except causing the waste of material, along with the increase of structure length, its self rigidity also can descend thereupon, and current end plate structure is regular cube structure, its own structural strength is limited, especially in the structure of big module, the quantity of electric core is more, the expansive force stack of a plurality of electric cores, very big requirement has been proposed to structural strength.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery module has higher structural strength, is difficult for taking place to warp because of the inflation of electric core.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a battery module, includes two end plates, two at least electric core groups and at least one baffle, every the electric core group includes a plurality of electric cores, the baffle sets up between two adjacent electric core groups, the both sides of baffle respectively with one the side laminating of electric core group, two the end plate sets up respectively the one end of electric core group, the end plate is bow-shaped, the end plate is including the flat board and the arc that are connected, flat board with be provided with a plurality of strengthening ribs between the arc, flat board with the one end laminating of electric core group, the both ends of baffle respectively with one the end plate is connected.

As an optimized scheme of the utility model, set up a plurality of runners that supply the coolant liquid to flow in the baffle, the both ends of baffle are provided with a liquid cooling joint respectively.

As an optimized scheme of the utility model, the confession has been seted up on the end plate the first through-hole that the liquid cooling joint passed.

As an optimized scheme of the utility model, the both sides of battery module all are provided with an at least fixed band, the both ends of fixed band respectively with one arc fixed connection.

As an optimized scheme of the utility model, the second through-hole has been seted up on the arc, the fixed band by passing the first fastener of second through-hole with end plate fixed connection.

As a preferable aspect of the present invention, the first fastening member is a rivet.

As an optimized scheme of the utility model, dull and stereotyped with still be provided with at least one fixed part between the arc, follow on the fixed part the third through-hole has been seted up to the direction of height of end plate, the top of fixed part with dull and stereotyped the top interval of arc sets up, the end plate is fixed by the second fastener that passes the third through-hole.

As an optimized scheme of the utility model, the quantity of fixed part is two and sets up respectively the both sides of end plate.

As a preferred scheme of the utility model, the strengthening rib is deep floor, promptly, the strengthening rib is platelike structure, adjacent two deep floor is the setting of V type.

As a preferred scheme of the utility model, the both ends of baffle all are provided with first joint portion, be provided with second joint portion on the flat board, first joint portion can with second joint portion matches, makes the baffle with the end plate joint.

The utility model has the advantages that:

the utility model discloses a battery module adopts the structure of end plate and baffle collocation, and a baffle forms the frame construction of I shape with two end plates, is arcuate end plate and has higher intensity and the ability of resisting the deformation, can satisfy double electric core and even the intensity needs of the big module of multirow electric core, and the battery module is difficult for taking place to warp because of the inflation of electric core.

Drawings

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

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

In the figure:

1. an end plate; 11. a flat plate; 12. an arc-shaped plate; 13. reinforcing rib plates; 14. a first through hole; 15. a second through hole; 16. a fixed part; 2. a partition plate; 3. a liquid cooling joint; 4. fixing belts; 5. a first fastener; 6. a second fastener; 100. and the electric core group.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Furthermore, in the description of the present invention, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 and fig. 2, the battery module of this embodiment includes two end plates 1, a baffle 2 and two electric core groups 100, each electric core group 100 includes a plurality of electric cores, baffle 2 is disposed between two electric core groups 100, the both sides of baffle 2 are laminated with the side of an electric core group 100 respectively, two end plates 1 set up the one end at electric core group 100 respectively, end plate 1 is bow-shaped, end plate 1 includes a flat plate 11 and an arc 12, flat plate 11 is connected with arc 12, preferably, the both ends of arc 12 are respectively connected with the both ends of flat plate 11 in a one-to-one correspondence, be provided with a plurality of deep floor boards 13 between flat plate 11 and arc 12, flat plate 11 is laminated with the one end of electric core group 100, the both ends of baffle 2 are connected with an end plate 1 respectively. It should be noted that the arcuate shape referred to in this application is a pattern consisting of a chord and an arc subtended by the chord. It should be noted that a substantially arcuate configuration is also contemplated as falling within the scope of the present application.

The battery module of this embodiment adopts the structure of end plate 1 and 2 collocation of baffle, and a baffle 2 forms the frame construction of I shape with two end plates 1, is that arcuate end plate 1 has higher intensity and resists the ability of warping, can satisfy double electric core and even the intensity needs of the big module of multirow electric core, and the battery module is difficult for taking place to warp because of the inflation of electric core. Compared with the existing flat plate type structure, the arched end plate 1 saves more materials, so that the weight of the end plate 1 is lower, and the energy density of the battery module is favorably improved.

The above embodiments include two electric core sets 100, in other embodiments, the number of the electric core sets 100 is three or four or more, and correspondingly, a partition plate 2 is disposed between two adjacent electric core sets 100 to meet the requirement of structural strength.

Preferably, a plurality of runners (not shown in the figure) that supply the coolant liquid to flow are seted up in baffle 2, the both ends of baffle 2 are provided with a liquid cooling joint 3 respectively, thereby make a baffle 2 outside promoting battery module intensity as the structure, can also act as the liquid cooling board, because a baffle 2 can cool off for two electric core groups 100 simultaneously, need not to set up solitary liquid cooling board for every electric core group 100, be favorable to reducing cooling system's volume and weight, promote battery module's energy density.

Furthermore, the end plate 1 is provided with a first through hole 14 for the liquid cooling joint 3 to pass through, so that the liquid cooling joint 3 can extend out of the end plate 1, and an external pipeline can be conveniently connected with the liquid cooling joint 3.

Preferably, both sides of the battery module are provided with at least one fixing band 4, and both ends of the fixing band 4 are respectively fixedly connected with an arc-shaped plate 12. The fixing bands 4 connect the two end plates 1 to fix the electric core assembly 100, and in the illustrated embodiment, two fixing bands 4 are disposed on both sides of the battery module, and the fixing bands 4 may be made of manganese steel, so that they have a high yield strength.

Furthermore, a second through hole 15 is formed in the arc-shaped plate 12, and the fixing band 4 is fixedly connected with the end plate 1 through a first fastener 5 penetrating through the second through hole 15.

Specifically, first fastener 5 is the rivet, compares in screwed connection's mode, adopts rivet connection can not take place the problem that the pine takes off, compares in with fixed band 4 direct welding to end plate 1 on, rivet connection is less to end plate 1's damage, and is convenient for fixed band 4's change or dismantlement.

Preferably, at least one fixing portion 16 is further disposed between the flat plate 11 and the arc-shaped plate 12, a third through hole (not shown in the figure) is disposed on the fixing portion 16 along the height direction of the end plate 1, the top end of the fixing portion 16 is spaced from the top ends of the flat plate 11 and the arc-shaped plate 12, and the end plate 1 is fixed by a second fastening member 6 passing through the third through hole. The battery module is generally further provided with a base plate (not shown), and the second fastening member 6 is coupled to the base plate after passing through the third through hole, thereby fixing the end plate 1. The above arrangement can prevent the tip of the second fastening member 6 from protruding from the end plate 1, and prevent the protruding second fastening member 6 from obstructing the installation of other components of the battery module.

Specifically, the second fastening member 6 is a bolt.

Further, the number of the fixing portions 16 is two and is respectively provided on both sides of the end plate 1. The two fixing portions 16 enable one end plate 1 to be fixed by the two second fastening members 6, and the fixing effect of the second fastening members 6 on the end plate 1 can be further improved due to the fact that the two fixing portions 16 are far apart.

Preferably, two adjacent reinforcing rib plates 13 are arranged in a V shape, so that a stable triangular structure is formed between the two adjacent reinforcing rib plates 13 and the flat plate 11 or the arc-shaped plate 12, and the end plate 1 has high structural strength.

Preferably, both ends of the partition board 2 are provided with first clamping portions (not shown in the figure), the flat plate 11 is provided with second clamping portions (not shown in the figure), and the first clamping portions can be matched with the second clamping portions to clamp the partition board 2 with the end plate 1. Since the flat plate 11 is tightly attached to one end of the cell assembly 100, if the connecting members such as screws are used to connect the end plate 1 and the partition plate 2, there is not enough space for installing the connecting members, so the end plate 1 and the partition plate 2 are connected by clamping.

As a preferred embodiment of the present invention, in the description of the present specification, reference to the description of the terms "preferred", "further" or the like means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only used to illustrate the detailed embodiments of the present invention, and the present invention is not limited to the above detailed embodiments, i.e. the present invention must not be implemented depending on the detailed embodiments. It should be clear to those skilled in the art that any improvement of the present invention, to the equivalent replacement of each raw material of the present invention, the addition of auxiliary components, the selection of specific modes, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. The utility model provides a battery module, its characterized in that includes two end plates, two at least electric core groups and at least one baffle, every the electric core group includes a plurality of electric cores, the baffle sets up between two adjacent electric core groups, the both sides of baffle respectively with one the side laminating of electric core group, two the end plate sets up respectively the one end of electric core group, the end plate is bow-shaped, the end plate is including the flat board and the arc that are connected, flat board with be provided with a plurality of strengthening ribs between the arc, flat board with the one end laminating of electric core group, the both ends of baffle respectively with one the end plate is connected.

2. The battery module according to claim 1, wherein the partition plate has a plurality of flow passages for the cooling fluid to flow through, and a liquid cooling connector is disposed at each end of the partition plate.

3. The battery module according to claim 2, wherein the end plate has a first through hole for the liquid-cooled connector to pass through.

4. The battery module according to any one of claims 1 to 3, wherein at least one fixing band is disposed on each of two sides of the battery module, and each end of the fixing band is fixedly connected to one of the arc-shaped plates.

5. The battery module according to claim 4, wherein the arc-shaped plate is provided with a second through hole, and the fixing band is fixedly connected with the end plate by a first fastener penetrating through the second through hole.

6. The battery module according to claim 5, wherein the first fastener is a rivet.

7. The battery module according to any one of claims 1 to 3, wherein at least one fixing portion is further disposed between the flat plate and the arc-shaped plate, a third through hole is formed in the fixing portion in the height direction of the end plate, the top end of the fixing portion is spaced from the top ends of the flat plate and the arc-shaped plate, and the end plate is fixed by a second fastening member passing through the third through hole.

8. The battery module according to claim 7, wherein the number of the fixing parts is two and the fixing parts are respectively disposed at both sides of the end plate.

9. The battery module according to any one of claims 1 to 3, wherein the reinforcing ribs are reinforcing rib plates, and two adjacent reinforcing rib plates are arranged in a V shape.

10. The battery module according to any one of claims 1 to 3, wherein first clamping portions are arranged at two ends of the partition plate, second clamping portions are arranged on the flat plate, and the first clamping portions can be matched with the second clamping portions to clamp the partition plate with the end plate.