CN214898727U - Battery box, battery package and vehicle - Google Patents

Abstract

The utility model relates to a battery technology field, the utility model provides a battery box, battery package and vehicle, this battery box includes the bottom plate structure, the framework and separate the structure, it just is used for separating the first substructure of a plurality of that forms a plurality of subspace and locating on the bottom plate structure and relative both ends connect in a plurality of second substructure of the inside wall of framework including locating in the framework, the direction that sets up of first substructure sets up the direction with the second substructure and interlocks each other, the relative both ends of first substructure are connected on the inside wall of framework, the terminal surface that the second substructure deviates from the bottom plate structure is connected in the terminal surface of the first substructure that corresponds towards the bottom plate structure. The installation requirement of the installation position through changing the partition structure piece in order to satisfy the overlength module can also improve the shock resistance of framework simultaneously.

Description

Battery box, battery package and vehicle

Technical Field

The utility model relates to a battery technology field especially provides a battery box, have battery package of this battery box and have vehicle of this battery package.

Background

With the development of the power battery industry, each enterprise pursues higher volume grouping rate and quality grouping rate on the premise of ensuring safety, so that design concepts such as blade batteries and ultra-long modules appear so as to improve the volume grouping rate and the quality grouping rate.

To super long module, the structure of battery box has also changed, places for adapting to super long module, either cancels the crossbeam in the box, or cancels the longeron, however, satisfying under the condition of high volume percentage of uniting and high quality percentage of uniting, the whole mechanical strength of battery box has but reduced, like this, takes great potential safety hazard for the battery band.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery box aims at solving the problem that current battery box leads to whole mechanical strength low under the condition of adaptation overlength module.

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

in a first aspect, the application provides a battery box, including the bottom plate structure, enclose the framework of locating the bottom plate structure and separate the structure, separate the structure including locate in the framework and be used for separating the accommodation space of framework and form a plurality of first substructure member of a plurality of subspaces and locate on the bottom plate structure and relative both ends connect in a plurality of second substructure members of the inside wall of framework, the direction that sets up of first substructure member sets up the direction with the second substructure member and interlocks each other, the relative both ends of first substructure member are connected on the inside wall of framework, the terminal surface that the second substructure member deviates from the bottom plate structure connects in the terminal surface of the first substructure member of correspondence towards the bottom plate structure.

The utility model has the advantages that: the utility model provides a battery box through the installation demand that changes the mounted position of separating the structure in order to satisfy super long module, simultaneously, can also improve the shock resistance of framework. Specifically, the partition structure comprises two kinds of sub-beams, wherein one kind of the sub-beams is a first sub-structure for partitioning an accommodating space formed by enclosing the frame body and the bottom plate structure into a plurality of sub-spaces, and the mechanical strength of the frame body is increased by utilizing each first sub-structure; the other type is a second sub-structure arranged on the bottom plate structure, and the installation position of the second sub-structure is between the bottom plate structure and the end face, facing the bottom plate structure, of each first sub-structure, namely, the second sub-structure is only used for supporting the frame body, so that the mechanical strength of the frame body is further improved, and the frame body does not occupy the accommodating space of the frame body.

In one embodiment, the first sub-structure member has a first wide surface arranged along a length direction of the first sub-structure member, the second sub-structure member has a second wide surface arranged along a length direction of the second sub-structure member, the first wide surface is perpendicular to the bottom plate structure member, the second wide surface is parallel to the bottom plate structure member, the first wide surface is arranged along a width direction of the frame body, and the second wide surface is arranged along a length direction of the frame body, or the second wide surface is arranged along a width direction of the frame body, and the first wide surface is arranged along a length direction of the frame body.

Through adopting above-mentioned technical scheme, place the direction according to overlength module, adjust the mounted position of first substructure spare and second substructure spare to satisfy the diversified demand of placing of battery module.

In one embodiment, the end surface of the second sub-structural member facing away from the bottom plate structural member is provided with a first connecting structure for fixing the battery module.

Through adopting above-mentioned technical scheme, utilize first connection structure to fix the battery module on the second substructure spare to ensure the installation stability of battery module in the accommodation space.

In one embodiment, the second sub-structure includes a first protection plate and a second protection plate stacked in the thickness direction, opposite ends of the first protection plate are connected to the inner side wall of the frame, and the second protection plate is provided with a first connection structure.

Through adopting above-mentioned technical scheme, first guard plate plays the effect that absorbs external impact to ensure that the framework is unlikely to the atress and warp and cause the influence to battery module in it, and the second guard plate then plays the effect of supporting and fixed battery module.

In one embodiment, the first protection plate and/or the second protection plate are internally provided with lightening hole structures and a plurality of reinforcing ribs for spacing the lightening hole structures.

By adopting the technical scheme, the weight of the whole battery box body is reduced by arranging the lightening hole structures in the first protection plate and/or the second protection plate, so that the total weight of the battery pack is reduced, the endurance of a vehicle is improved, and meanwhile, the structure of the lightening hole structures can be strengthened by the reinforcing ribs.

In one embodiment, the frame body is provided with a second connecting structure for fixing the battery module.

Through adopting above-mentioned technical scheme, utilize second connection structure to fix the battery module on the framework, further improve the installation stability of battery module in the accommodation space.

In one embodiment, the floor structure is a liquid cooled panel.

Through adopting above-mentioned technical scheme, utilize the liquid cooling board as the bottom plate structure of battery box, when guaranteeing structural stability, still can utilize the liquid cooling board to carry out the heat exchange to the battery module to guarantee the operating temperature of battery module.

In one embodiment, the liquid cooling plate comprises a first liquid cooling sub-plate and a second liquid cooling sub-plate which are stacked along the thickness direction and are communicated with each other, the frame body is enclosed in the first liquid cooling sub-plate, and the second liquid cooling sub-plate is abutted to the battery module.

Through adopting above-mentioned technical scheme, divide into first liquid cooling daughter board and second liquid cooling daughter board of intercommunication each other from the thickness direction with the liquid cooling board, wherein, first liquid cooling daughter board plays the effect of support and connection framework to enclose with the framework and form the accommodation space, and the second liquid cooling daughter board then directly contacts with the battery module, is used for carrying out the heat exchange to the battery module.

In a second aspect, the present application further provides a battery pack, which includes a battery module and the above battery box, wherein the battery module is installed in the battery box, a first installation position adapted to a frame body of the battery box is provided at opposite ends of the battery module, and a second installation position adapted to a bottom plate structure of the battery box is provided at the battery module.

The utility model has the advantages that: the utility model provides a battery pack, on the basis that has above-mentioned battery box, fail safe nature is higher, also has higher volume percentage of uniting and quality percentage of uniting simultaneously.

In a third aspect, the present application further provides a vehicle including the battery pack described above.

The utility model has the advantages that: the utility model provides a vehicle, on the basis that has above-mentioned battery package, its installation reliability is higher, and has higher continuation of the journey mileage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a battery box provided in an embodiment of the present invention;

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

fig. 3 is a cross-sectional view of a battery case according to an embodiment of the present invention;

fig. 4 is another exploded view of the battery box according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second substructure part of a battery box according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the battery box body 100, the bottom plate structural member 10, the frame body 20, the partition structural member 30, the first sub-structural member 31, the second sub-structural member 32, the first wide surface 31a, the second wide surface 32a, the first connecting structure 41, the first protection plate 321, the second protection plate 322, the lightening hole structure 30a, the reinforcing rib 30b, the second connecting structure 42, the first liquid cooling sub-plate 11, the second liquid cooling sub-plate 12, the battery module 200, the first mounting position 201 and the second mounting position 202.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The length and width of the super-long module and the blade battery are large, so that when the super-long module and the blade battery are placed in a battery box, the size of the accommodating space of the battery box needs to be adjusted, namely, a cross beam or a longitudinal beam in the original battery box is removed most directly to obtain a proper space size, however, mechanical properties such as impact resistance of the battery box with the cross beam or the longitudinal beam removed are reduced, and potential hazards are caused to the use safety of a battery pack.

Referring to fig. 1 and fig. 2, in order to solve the above problem, the present application provides a battery case 100. Specifically, the battery box 100 includes a bottom plate structure 10, a frame 20 surrounding the bottom plate structure 10 and forming an accommodating space, and a partition structure 30. The partition structure 30 includes a plurality of first sub-structures 31 disposed in the frame 20 and a plurality of second sub-structures 32 disposed on the bottom plate structure 10 and having opposite ends connected to the inner side wall of the frame 20. Here, each first sub-structure 31 is used to partition the accommodating space of the frame 20 into a plurality of sub-spaces to meet the placement requirement of the extra-long module, that is, the length, width and height of each sub-space are matched with the length, width and height of the extra-long module, and each second sub-structure is used to improve the deformation resistance of the frame in the length or width direction. The arrangement direction of the first sub-structural members 31 and the arrangement direction of the second sub-structural members 32 are staggered with each other. It is understood that the arrangement direction of the first and second sub-structures 31 and 32 corresponds to the length and width direction of the frame body 20, that is, if each first sub-structure 31 can be arranged along the length direction of the frame body 20, each second sub-structure 32 is arranged along the width direction of the frame body 20, and if each first sub-structure 31 can be arranged along the width direction of the frame body 20, each second sub-structure 32 is arranged along the length direction of the frame body 20. The opposite ends of the first sub-structure 31 are connected to the inner side wall of the frame 20, and the end surface of the second sub-structure 32 departing from the bottom plate structure 10 is connected to the end surface of the corresponding first sub-structure 31 facing the bottom plate structure 10. Here, the end surface of the second sub-structure 32 away from the bottom plate structure 10 is a top end surface, the other end surface is a bottom end surface, the end surface of the first sub-structure 31 facing the bottom plate structure 10 is a bottom end surface, and the other end surface is a top end surface, it can be understood that the top end surface of the second sub-structure 32 is connected with the bottom end surface of the first sub-structure 31, that is, the two are not arranged in a cross manner, so that the two can meet the requirement of separating the accommodating space into a plurality of subspaces, the second sub-structure 32 can provide the anti-deformation support in the length or width direction of the frame 20, and the volume of each sub-space is not reduced.

The utility model provides a battery box 100, through the installation demand that changes the mounted position of separating structure 30 in order to satisfy super long module, simultaneously, can also improve framework 20's shock resistance. Specifically, the partition structure 30 includes two kinds of sub-beams, one is a first sub-structure 31 for partitioning an accommodating space formed by enclosing the frame 20 and the bottom plate structure 10 into a plurality of sub-spaces, and the mechanical strength of the frame 20 is increased by using each first sub-structure 31; the other is the second sub-structure 32 disposed on the bottom plate structure 10, and the mounting position of the second sub-structure 32 is between the bottom plate structure 10 and the end face of each first sub-structure 31 facing the bottom plate structure 10, that is, the second sub-structure 32 is only used for supporting the frame 20, so as to further improve the mechanical strength of the frame 20 without occupying the accommodating space of the frame 20.

When the number of the first sub-structures 31 and the second sub-structures 32 is two or more, the first sub-structures 31 are spaced apart from each other along the length or the width direction of the frame body 20, and the second sub-structures 32 are spaced apart from each other along the width or the length direction of the frame body 20.

Referring to fig. 1 and 2, in one embodiment, the first sub-structure member 31 has a first wide surface 31a arranged along a length direction of the first sub-structure member 31, where the first sub-structure member 31 is a strip-shaped plate with a square-shaped width cross section, and the first wide surface 31a refers to a larger circumferential side surface of the first sub-structure member 31. The second substructure member 32 has a second wide surface 32a running in the longitudinal direction of the second substructure member 32, where the second substructure member 32 is a strip-shaped plate with a square cross-section, and the second wide surface 32a is an enlarged circumferential side surface of the second substructure member 32. The first wide surface 31a is perpendicular to the floor structure and the second wide surface 32a is parallel to the floor structure. It can be understood that the first sub-structure 31 stands on the inner side of the bottom surface of the bottom plate structure, the second sub-structure 32 is in a flat state, i.e. parallel to the inner side of the bottom surface of the bottom plate structure, the first wide surface 31a is arranged along the width direction of the frame body, the second wide surface 32a is arranged along the length direction of the frame body, at this time, the first sub-structure 31 is arranged along the width direction of the frame body 20, and the second sub-structure 32 is arranged along the length direction of the frame body 20, i.e. the length of the first sub-structure 31 corresponds to the length of the super-long module, and each super-long module is sequentially arranged in the corresponding sub-space along the length direction of the frame body 20. Of course, the orientation of the first and second sub-structures 31 and 32 is adjusted according to the change of the placement direction of the super-long module, for example, the second wide surface 32a is provided along the width direction of the frame 20, and the first wide surface 31a is provided along the length direction of the frame. It is understood that, in this case, the first sub-structure 31 is disposed along the length direction of the frame body 20, and the second sub-structure 32 is disposed along the width direction of the frame body 20, that is, each super-long module is sequentially disposed in the corresponding sub-space along the width direction of the frame body 20.

Through adopting above-mentioned technical scheme, place the direction according to overlength module, select the mounted position of first substructure 31 and second substructure 32 to satisfy the diversified demand of placing of battery module.

Referring to fig. 1, 3, 4 and 5, in one embodiment, a first connecting structure 41 for fixing a battery module is disposed on an end surface of the second sub-structural member 32 facing away from the bottom plate structural member 10. By adopting the above technical scheme, the first connecting structure 41 is utilized to fix the battery module on the second sub-structure 32, so as to ensure the installation stability of the battery module in the accommodating space. Specifically, the first connecting structure 41 may be a threaded hole, and similarly, a corresponding threaded hole is also formed in the battery module, and two threaded holes are sequentially formed through screws, so that the battery module is fixed on the second sub-structural member 32. Of course, the first connecting structure 41 may also be a snap structure disposed on the end surface of the second sub-structural member 32, that is, the battery module is fixed on the end surface of the second sub-structural member 32 by a snap-fit manner, besides the above-mentioned threaded hole.

Specifically, referring to fig. 2 and 5, in an embodiment, the second sub-structure 32 includes a first protection plate 321 and a second protection plate 322 stacked along a thickness direction, opposite ends of the first protection plate 321 are connected to an inner sidewall of the frame 20, and the second protection plate 322 is provided with a first connection structure 41. It can be understood that the first protection plate 321 plays a role of absorbing external impact to ensure that the frame body 20 is not deformed by force to affect the battery modules therein, for example, the impact along the length direction or the width direction of the frame body 20 can be absorbed. And the second protection plate 322 plays a role of supporting and fixing the battery module. Preferably, the length of the second protection plate 322 is less than that of the first protection plate 321, so that opposite ends of the second protection plate 322 do not contact the inner sidewall of the frame 20.

Referring to fig. 5, in one embodiment, the first protection plate 321 and/or the second protection plate 322 have weight-reducing hole structures 30a formed therein. By adopting the technical scheme, the weight of the whole battery box body 100 is reduced by arranging the lightening hole structures 30a in the first protection plate 321 and/or the second protection plate 322, so that the total weight of the battery pack is reduced, and the endurance of a vehicle is improved. Here, the lightening hole structure 30a may have various structural forms, for example, the lightening hole structure 30a is a plurality of through holes extending in a length direction of the first shielding plate 321 or the second shielding plate 322, and a sectional shape of the through holes is not limited, and may be a square, a circle, a triangle, and the like. Meanwhile, in order to ensure the structural strength of the lightening hole structure, a plurality of reinforcing ribs 30b are arranged in the lightening hole structure.

Referring to fig. 1 and 2, in one embodiment, the frame 20 is provided with a second connecting structure 42 for fixing the battery module. Through adopting above-mentioned technical scheme, utilize second connection structure 42 to fix the battery module on framework 20, further improve the installation stability of battery module in the accommodation space. Specifically, the second connecting structure 42 can be a threaded hole, and similarly, a corresponding threaded hole is also formed in the battery module, and two threaded holes are sequentially formed through screws, so that the battery module is fixed on the frame body 20. Of course, the second connecting structure 42 may also be a snap structure provided on the frame body 20, that is, the battery module is fixed on the frame body 20 by a snap-fit manner, besides the above-mentioned threaded hole.

Referring to fig. 2, in one embodiment, the floor structure 10 is a liquid-cooled panel. As can be appreciated, the liquid cooling plate is used as the bottom plate structure 10 of the battery box 100, so that the structural stability is ensured, and at the same time, the liquid cooling plate can be used for exchanging heat with the battery module, thereby ensuring the working temperature of the battery module.

In another embodiment, the floor structure 10 is a conventional plate. It will be appreciated that the plate body may be a solid plate body or a hollow plate body. Can realize the support and the fixed of battery module can.

Referring to fig. 2, in an embodiment, the liquid cooling plate includes a first liquid cooling sub-plate 11 and a second liquid cooling sub-plate 12 stacked in a thickness direction and connected to each other, the frame 20 surrounds the first liquid cooling sub-plate 11, and the second liquid cooling sub-plate 12 abuts against the battery module. Through adopting above-mentioned technical scheme, divide into first liquid cooling daughter board 11 and the second liquid cooling daughter board 12 of intercommunication each other from the thickness direction with the liquid cooling board, wherein, first liquid cooling daughter board 11 plays the effect of supporting and connecting frame body 20 to enclose with frame body 20 and form the accommodation space, and second liquid cooling daughter board 12 then directly contacts with the battery module, is used for carrying out the heat exchange to the battery module.

Referring to fig. 1 and 2, in one embodiment, a plurality of mounting slots are formed on the bottom plate structure 10, and the second sub-structure 32 is mounted in the corresponding mounting slots. Specifically, the first protection plate 321 and the second protection plate 322 of the second sub-structure 32 are all arranged in the mounting groove, so that the end surface of the second protection plate 322 is flush with the end surface of the bottom plate structure 10, the whole inner bottom surface of the battery box 100 is flat, and the battery box is more suitable for mounting a battery module.

In a second aspect, please refer to fig. 1 and fig. 6, the present application further provides a battery pack, which includes a battery module 200 and the battery case 100, wherein the battery module 200 is installed in the battery case 100, two opposite ends of the battery module 200 are provided with a first installation position 201 adapted to a frame body of the battery case 100, and the battery module 200 is provided with a second installation position 202 adapted to a bottom plate structure of the battery case 100. It can be understood that the first mounting position 201 may be a screw fixing position, which is disposed at the first mounting position 201 by screws, so that the circumferential side of the battery module 200 is connected with the frame body of the battery case, and the second mounting position 202 may be a mounting hole, which is penetrated through the first mounting position 201 by screws, so that the bottom surface of the battery module 200 is connected with the bottom plate structural member of the battery case, so that the bending rigidity of the entire battery module 200 can be improved and the deformation in the vertical direction can be reduced. Specifically, the number of the first installation positions 201 and the second installation positions 202 can be selected according to actual installation requirements.

The utility model provides a battery pack, on the basis that has above-mentioned battery box 100, its fail safe nature is higher, also has higher volume percentage of uniting and quality percentage of uniting simultaneously.

In a third aspect, the present application further provides a vehicle including the battery pack described above.

The utility model provides a vehicle, on the basis that has above-mentioned battery package, its installation reliability is higher, and has higher continuation of the journey mileage.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a battery box, includes the bottom plate structure, encloses and locates the framework and the partition structure of bottom plate structure, its characterized in that: partition structure is including locating just be used for inciting somebody to action in the frame the accommodation space of frame is separated and is formed the first substructure of a plurality of subspace and is located on the bottom plate structure and relative both ends connect respectively in a plurality of second substructure on the relative inside wall of frame, the direction that sets up of first substructure with the second substructure sets up the direction and interlocks each other, the relative both ends of first substructure connect respectively in on the relative inside wall of frame, the second substructure deviates from the end connection of bottom plate structure is in corresponding first substructure orientation the terminal surface of bottom plate structure.

2. The battery case according to claim 1, characterized in that: the first sub-structure member is provided with a first wide surface arranged along the length direction of the first sub-structure member, the second sub-structure member is provided with a second wide surface arranged along the length direction of the second sub-structure member, the first wide surface is perpendicular to the bottom plate structure member, the second wide surface is parallel to the bottom plate structure member, the first wide surface is arranged along the width direction of the frame body, the second wide surface is arranged along the length direction of the frame body, or the second wide surface is arranged along the width direction of the frame body, and the first wide surface is arranged along the length direction of the frame body.

3. The battery case according to claim 1, characterized in that: and a first connecting structure for fixing the battery module is arranged on the end face of the second substructure member, which deviates from the bottom plate structure.

4. The battery case of claim 3, wherein: the second sub-structure includes first guard plate and the second guard plate of range upon range of setting along thickness direction, the relative both ends of first guard plate connect in the inside wall of framework, be equipped with on the second guard plate first connection structure.

5. The battery case according to claim 4, characterized in that: and lightening hole structures and a plurality of reinforcing ribs for spacing the lightening hole structures are arranged in the first protection plate and/or the second protection plate.

6. The battery case according to claim 1, characterized in that: and a second connecting structure for fixing the battery module is arranged on the frame body.

7. The battery case according to any one of claims 1 to 6, characterized in that: the bottom plate structural member is a liquid cooling plate.

8. The battery case according to claim 7, characterized in that: the liquid cooling board includes first liquid cooling daughter board and the second liquid cooling daughter board that sets up and communicate each other along thickness direction range upon range of, the framework is enclosed and is located first liquid cooling daughter board, second liquid cooling daughter board butt in battery module.

9. The utility model provides a battery package, includes battery module, its characterized in that: the battery box comprises the battery box body as claimed in any one of claims 1 to 8, wherein the battery module is installed in the battery box body, the opposite ends of the battery module are provided with first installation positions matched with the frame body of the battery box body, and the battery module is provided with second installation positions matched with the bottom plate structural member of the battery box body.

10. A vehicle, characterized in that: comprising the battery pack according to claim 9.

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