CN220456535U - Battery pack structure - Google Patents

Abstract

The application discloses battery package structure relates to battery technology field, and it includes: the box body is of a cavity structure with an opening at one side; the cross beams are arranged in the cavity of the box body in parallel at intervals so as to divide the cavity of the box body into a plurality of accommodating spaces; a battery cell array group is arranged in each accommodating space; the cross beam fixing blocks are arranged in the box body, and the cross beams are detachably fixed in the box body through the cross beam fixing blocks. The battery pack structure of this application adopts such setting, in practical application, can be earlier with electric core row group place in the box earlier, wait for the battery to place the back, fix a plurality of crossbeams in the box through a plurality of crossbeam fixed blocks. Because no cross beam exists when the battery is placed, the installation rate of the battery cell array group can be improved.

Description

Battery pack structure

Technical Field

The application relates to the technical field of batteries, in particular to a battery pack structure.

Background

At present, with the rapid development of new energy industry, the scheme of a battery pack becomes a mainstream solution of the whole vehicle. The current design of battery packs is more and more extreme, and the volume utilization rate of battery packs is higher and higher, so that many battery manufacturers transfer more efforts from the traditional battery Pack technology To the CTP (i.e., cell To Pack) battery technology.

Specifically, the CTP battery package structure at present is provided with a plurality of crossbeams in the battery package box, and a plurality of crossbeams cut apart the battery package box into a plurality of accommodation spaces of placing the battery. Wherein the cross beam and the battery pack box body are integrally arranged, or the cross beam and the battery pack box body are welded. Then place the battery in accommodation space, and when placing the battery, because there is the crossbeam in the battery package box for the efficiency of installing the battery in the battery package box is lower.

Disclosure of Invention

Aiming at the defects in the prior art, the application provides a battery pack structure.

In order to achieve the above purpose, the technical scheme adopted is as follows: a battery pack structure, comprising: the box body is of a cavity structure with an opening at one side;

the cross beams are arranged in the cavity of the box body in parallel at intervals so as to divide the cavity of the box body into a plurality of accommodating spaces; a battery cell array group is arranged in each accommodating space;

the cross beam fixing blocks are arranged in the box body, and the cross beams are detachably fixed in the box body through the cross beam fixing blocks.

On the basis of the technical scheme, each beam comprises a beam main body part and beam mounting parts positioned at two sides of the beam main body part from the length direction of each beam; in same crossbeam, every crossbeam installation department sets up with crossbeam main part is integrative, and deviates from the open-ended one side of box, every crossbeam installation department is formed with the installation breach with crossbeam main part, the crossbeam fixed block stretches into in the installation breach is with the fixed of realization crossbeam fixed block and crossbeam.

On the basis of the technical scheme, the beam mounting part is provided with a through reserved through hole, and the beam fixing block is provided with a first threaded hole;

the beam installation part and the beam fixing block are fixed through a first fixing bolt, and the first fixing bolt penetrates through the reserved through hole and is matched with the first threaded hole in a threaded mode.

On the basis of the technical scheme, the box body comprises a bottom plate, two oppositely arranged first side plates and two oppositely arranged second side plates, wherein the two oppositely arranged first side plates and the two oppositely arranged second side plates are arranged on the periphery of the bottom plate in a surrounding mode, the two first side plates are connected through one second side plate, and any one first side plate is perpendicular to the two second side plates respectively; the second side plate and the cross beam are arranged in parallel;

the two wide side end surfaces of the battery cell array group arranged between the two cross beams are respectively fixed with the cross beams at the two sides of the battery cell array group through a structural adhesive layer;

and the battery cell array group is arranged between the second side plate and one beam adjacent to the second side plate, one wide side end face of the battery cell array group is fixed with the beam through a structural adhesive layer, and the other wide side end face is fixed with the second side plate through the structural adhesive layer.

On the basis of the technical scheme, a plurality of second threaded holes are formed in one side, close to the two first side plates, of the bottom plate of the box body along the extending direction of the first side plates; or alternatively; the two first side plates are provided with a plurality of third threaded holes along the extending direction of the first side plates at one side close to the bottom plate;

a fourth threaded hole is further formed in one side, facing the bottom plate, of each beam fixing block, and the beam fixing blocks sequentially penetrate through the second threaded holes and the fourth threaded holes through second fixing bolts, so that the beam fixing blocks are detachably fixed on the bottom plate; or alternatively; and a fifth threaded hole is further formed in one side, facing the first side plate, of each beam fixing block, and the beam fixing blocks sequentially penetrate through the third threaded hole and the fifth threaded hole through the second fixing bolts, so that the beam fixing blocks are detachably fixed on the first side plate.

On the basis of the technical scheme, the box body further comprises box body bosses, each box body boss is arranged on the inner side face of the first side plate, and two outermost electric cores of the electric core array group are propped against the box body bosses.

On the basis of the technical scheme, the two first side plates are provided with the box bosses; at least two box bosses are arranged on the inner side surface of each first side plate in each accommodating space;

on the same first side plate of the same accommodating space, a first gap which is convenient for clamping is reserved between two adjacent box bosses.

On the basis of the technical scheme, a second gap for avoiding weld flash is reserved between the inner side surface of the second side plate and the adjacent box boss;

a third gap for installing the beam fixing blocks is reserved between two box bosses adjacent to any beam fixing block.

On the basis of the technical scheme, a fourth gap is reserved between any one beam fixing block and the box boss adjacent to the beam fixing block.

On the basis of the technical scheme, the cross beam is formed by processing extruded aluminum profiles.

The beneficial effects that technical scheme that this application provided brought include:

in this application, every crossbeam both ends all are fixed in the box through the crossbeam fixed block, and a plurality of crossbeams and a plurality of crossbeam fixed block mutually support. In practical application, the battery cell array group can be placed in the box first, and after the battery is placed, the cross beams are fixed in the box through the cross beam fixing blocks. Because no cross beam exists when the battery is placed, the installation rate of the battery cell array group can be improved.

Drawings

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

Fig. 1 is an exploded view of a battery pack structure provided in an embodiment of the present application;

FIG. 2 is a partial top view of a battery pack structure provided in an embodiment of the present application;

fig. 3 is a schematic structural view of a box boss and a beam fixing block of the battery pack structure according to the embodiment of the present application;

FIG. 4 is a schematic view of a cross beam provided in an embodiment of the present application;

fig. 5 is a cross-sectional view of a battery pack structure according to an embodiment of the present application;

fig. 6 is another directional cross-sectional view of a battery pack structure provided in an embodiment of the present application;

reference numerals: 1. a case; 11. a first side plate; 12. a second side plate; 2. a cross beam; 21. reserving a through hole; 22. a mounting notch; 23. a beam mounting portion; 3. a structural adhesive layer; 4. a first fixing bolt; 5. a battery cell; 51. a cell array group; 511. a long side end face; 512. a wide side end face; 6. a beam fixing block; 61. a first threaded hole; 7. a box boss; 8. a first gap; 9. and a second gap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 6, a battery pack structure includes a case 1, a plurality of cell array groups 51, a plurality of cross members 2, and a plurality of cross member fixing blocks 6.

One side of the case 1 has an open cavity structure.

The cross beams 2 are arranged in the cavity of the box body 1 in parallel and at intervals so as to divide the cavity of the box body 1 into a plurality of accommodating spaces.

Each cell array group 51 is formed by overlapping a plurality of cells 5 back and forth, and each cell array group 51 is accommodated in the accommodating space.

Each cell array group 51 is clamped between two adjacent cross beams 2 or between one cross beam 2 and the side wall of the case 1.

The cross beam fixing blocks 6 are arranged in the box body 1, and the cross beam 2 is detachably fixed in the box body 1 through the cross beam fixing blocks 6.

In this application, every crossbeam 2 both ends all are fixed in box 1 through crossbeam fixed block 6, and a plurality of crossbeams 2 and a plurality of crossbeam fixed block 6 mutually support. In practical application, as the beam fixing blocks 6 are arranged in the box body 1, the battery cell array group 51 can be firstly placed in the box body 1, and after the battery is placed, the beams 2 are fixed in the box body 1 through the beam fixing blocks 6. Since there is no cross member 2 when the battery is placed, the rate of mounting the cell array group 51 can be increased.

As shown in fig. 3 and 4, in some embodiments, each of the cross members 2 includes a cross member main body portion and cross member mounting portions 23 located on both sides of the cross member main body portion from a length direction of each of the cross members 2; in the same beam 2, each beam mounting portion 23 is integrally provided with a beam main body portion, and on one side facing away from the opening of the case 1, each beam mounting portion 23 and the beam main body portion are formed with a mounting notch 22, and the beam fixing block 6 extends into the mounting notch 22 to fix the beam fixing block 6 and the beam 2.

Specifically, during actual composition, the beam fixing blocks 6 are fixed according to actual requirements, and then the beam 2 is straddled and fixed between the two beam fixing blocks 6.

As shown in fig. 6, the beam mounting portion 23 is further provided with a through-hole 21, and the beam fixing block 6 is provided with a first screw hole 61. The beam mounting portion 23 and the beam fixing block 6 are fixed by the first fixing bolt 4, and the first fixing bolt 4 penetrates the reserved through hole 21 and is screw-fitted to the first screw hole 61.

The battery package structure of this application, crossbeam 2 are fixed in crossbeam fixed block 6 through first fixing bolt 4, and the equipment is swift, and it is convenient to dismantle.

As shown in fig. 2, the case 1 includes a bottom plate, two oppositely disposed first side plates 11 and two oppositely disposed second side plates 12, the two first side plates 11 are connected by one second side plate 12, and any one of the first side plates 11 is perpendicular to the two second side plates 12, respectively; the second side plate 12 is arranged in parallel with the cross beam 2. The two wide side end surfaces 512 of the cell array group 51 arranged between the two cross beams 2 are respectively fixed with the cross beams 2 at two sides of the cell array group 51 through the structural adhesive layer 3; a second side plate 12 and a cell array group 51 between one beam 2 adjacent to the second side plate 12 are provided, one wide side end face 512 of the cell array group 51 is fixed with the beam 2 through a structural adhesive layer 3, and the other wide side end face 512 is fixed with the second side plate 12 through the structural adhesive layer 3.

In some embodiments, each beam securing block 6 is disposed against an inner side of the first side plate 11.

In some embodiments, each of the beam fixing blocks 6 is adhesively fixed to the first side plate 11 or the bottom plate, or each of the beam fixing blocks 6 is welded fixed to the first side plate 11 or the bottom plate.

In other embodiments, the bottom plate of the case 1 is provided with a plurality of second threaded holes (not shown) along the extending direction of the first side plates 11 (i.e., the direction in which one second side plate 12 points to the other second side plate 12) at the side near the two first side plates 11, respectively; or alternatively; the two first side plates 11 are provided with a plurality of third screw holes (not shown) along the extending direction of the first side plates 11 at the side near the bottom plate;

a fourth threaded hole (not shown in the figure) is further formed in one side, facing the bottom plate, of each beam fixing block 6, and the beam fixing blocks 6 sequentially penetrate through the second threaded hole and the fourth threaded hole through second fixing bolts (not shown in the figure), so that the beam fixing blocks 6 are detachably fixed on the bottom plate; or alternatively; each beam fixing block 6 is further provided with a fifth threaded hole (not shown in the figure) on one side facing the first side plate 11, and the beam fixing blocks 6 sequentially penetrate through the third threaded holes and the fifth threaded holes through the second fixing bolts, so that the beam fixing blocks 6 are detachably fixed on the first side plate 11.

This application is through setting up a plurality of second screw holes on the bottom plate, perhaps be provided with a plurality of third screw holes on first curb plate to this adjustment crossbeam fixed block 6 cooperates with different second screw holes (or third screw hole), and then can adjust the position of crossbeam fixed block 6 at first curb plate 11 extending direction, and then adjusts every accommodation space's size, so as to realize the adaptation of battery package to the electric core of different specifications.

As shown in fig. 2 and 3, in some embodiments, the case 1 includes case bosses 7, each case boss 7 is disposed between an inner side surface of the first side plate 11 and a long side end surface 511 of the cell array group 51, and two outermost cells 5 of the cell array group 51 are each held by the case boss 7.

Further, the two first side plates 11 are provided with a box boss 7; at least two box bosses 7 are arranged on the inner side surface of each first side plate 11 in each accommodating space; on the same first side plate 11 of the same accommodating space, a first gap 8 which is convenient for clamping is reserved between two adjacent box bosses 7. When one cell array group 51 is placed in the accommodating space, the fixture holds the two long side end surfaces 511 of each cell array group 51, and then each cell array group 51 is placed in the accommodating space. The first gap 8 thus evades the clamp.

Further, a second gap 9 (see fig. 2) for avoiding the weld flash is reserved between the inner side surface of the second side plate 12 and the adjacent box boss 7, and a gap formed by the second gap 9 can avoid the weld flash formed by welding the first side plate 11 and the second side plate 12.

Further, a third gap for installing the beam fixing block 6 is reserved between two box bosses 7 adjacent to any one beam fixing block 6.

Further, a fourth gap is reserved between any one beam fixing block 6 and the box boss 7 adjacent to the beam fixing block 6, and the fourth gap is used for a mounting gap when the beam fixing block 6 is mounted in the box 1.

Preferably, the cross beam 2 can be made of extruded aluminum profiles, and can also be made of other high-light materials.

The battery package structure of this application, in this application, every crossbeam 2 both ends all are fixed in box 1 through crossbeam fixed block 6, and a plurality of crossbeams 2 and a plurality of crossbeam fixed block 6 mutually support. In practical application, it can be seen that the battery cell array group 51 is first placed in the case 1, and after the battery is placed, the plurality of cross beams 2 are fixed in the case 1 by the plurality of cross beam fixing blocks 6. Since there is no cross member 2 when the battery is placed, the rate of mounting the cell array group 51 can be increased.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A battery pack structure, comprising:

the box body (1) is of a cavity structure with an opening at one side;

the cross beams (2) are arranged in the cavity of the box body (1) in parallel at intervals so as to divide the cavity of the box body (1) into a plurality of accommodating spaces; a battery cell array group (51) is arranged in each accommodating space;

the cross beam fixing blocks (6) are arranged in the box body (1), and the cross beam (2) is detachably fixed in the box body (1) through the cross beam fixing blocks (6).

2. A battery pack structure as claimed in claim 1, wherein: each beam (2) comprises a beam main body part and beam mounting parts (23) positioned at two sides of the beam main body part from the length direction of each beam (2); in the same crossbeam (2), every crossbeam installation department (23) sets up with crossbeam main part is integrative, and at deviating from the open-ended one side of box (1), every crossbeam installation department (23) is formed with installation breach (22) with crossbeam main part, crossbeam fixed block (6) stretch into in installation breach (22) in order to realize the fixed of crossbeam fixed block (6) and crossbeam (2).

3. A battery pack structure as claimed in claim 2, wherein: the beam mounting part (23) is provided with a through reserved through hole (21), and the beam fixing block (6) is provided with a first threaded hole (61);

the beam mounting part (23) and the beam fixing block (6) are fixed through a first fixing bolt (4), and the first fixing bolt (4) penetrates through the reserved through hole (21) and is matched with the first threaded hole (61) in a threaded mode.

4. A battery pack structure as claimed in claim 1, wherein: the box body (1) comprises a bottom plate, two oppositely arranged first side plates (11) and two oppositely arranged second side plates (12) which are arranged on the periphery of the bottom plate in a surrounding manner, wherein the two first side plates (11) are connected through one second side plate (12), and any one first side plate (11) is respectively perpendicular to the two second side plates (12); the second side plate (12) and the cross beam (2) are arranged in parallel;

two wide side end surfaces (512) of the cell array group (51) arranged between the two cross beams (2) are respectively fixed with the cross beams (2) at two sides of the cell array group (51) through a structural adhesive layer (3);

and arranging a second side plate (12) and a battery cell array group (51) between one cross beam (2) adjacent to the second side plate (12), wherein one wide side end surface (512) of the battery cell array group (51) is fixed with the cross beam (2) through a structural adhesive layer (3), and the other wide side end surface (512) is fixed with the second side plate (12) through the structural adhesive layer (3).

5. A battery pack structure as defined in claim 4, wherein:

a plurality of second threaded holes are formed in the bottom plate of the box body (1) at one side, close to the two first side plates (11), along the extending direction of the first side plates (11); or alternatively; the two first side plates (11) are provided with a plurality of third threaded holes along the extending direction of the first side plates (11) at one side close to the bottom plate;

a fourth threaded hole is further formed in one side, facing the bottom plate, of each beam fixing block (6), and the beam fixing blocks (6) sequentially penetrate through the second threaded holes and the fourth threaded holes through second fixing bolts, so that the beam fixing blocks (6) are detachably fixed on the bottom plate; or alternatively; and a fifth threaded hole is further formed in one side, facing the first side plate (11), of each beam fixing block (6), and the beam fixing blocks (6) sequentially penetrate through the third threaded hole and the fifth threaded hole through second fixing bolts, so that the beam fixing blocks (6) are detachably fixed on the first side plate (11).

6. A battery pack structure as defined in claim 4, wherein: the box body further comprises box body bosses (7), each box body boss (7) is arranged on the inner side face of the first side plate (11), and two outermost battery cores (5) of the battery cell array group (51) are propped against the box body bosses (7).

7. A battery pack structure as defined in claim 6, wherein: the two first side plates (11) are provided with box bosses (7); at least two box bosses (7) are arranged on the inner side surface of each first side plate (11) in each accommodating space;

on the same first side plate (11) of the same accommodating space, a first gap (8) which is convenient for clamping is reserved between two adjacent box body bosses (7).

8. A battery pack structure as defined in claim 7, wherein: a second gap (9) for avoiding weld flash is reserved between the inner side surface of the second side plate (12) and the adjacent box boss (7);

a third gap for installing the beam fixing blocks (6) is reserved between two box bosses (7) adjacent to any one beam fixing block (6).

9. A battery pack structure as claimed in claim 8, wherein: a fourth gap is reserved between any beam fixing block (6) and the box boss (7) adjacent to the beam fixing block (6).

10. A battery pack structure as claimed in claim 1, wherein: the cross beam (2) is formed by processing an extruded aluminum profile.