CN219658836U

CN219658836U - Battery pack box, battery pack and vehicle

Info

Publication number: CN219658836U
Application number: CN202223416936.1U
Authority: CN
Inventors: 陈振南
Original assignee: Beijing CHJ Automobile Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-09-08
Anticipated expiration: 2032-12-20

Abstract

The embodiment of the utility model provides a battery pack box body, a battery pack and a vehicle, wherein the battery pack box body comprises a box main body and a frame; the box body is provided with a hollow cavity; the frame is arranged in the hollow cavity, the frame is connected with the box main body and encloses to form a containing groove for containing the battery, the frame comprises a first beam and a second beam, and the first beam and the second beam are intersected and define a plurality of through grooves. The battery pack box body comprises a box body and a frame, wherein the frame comprises a first beam and a second beam, the first beam is intersected with the second beam and is provided with a plurality of through grooves, and the weight of the battery pack box body can be reduced on the premise that the frame has larger supporting force and strength, so that the whole vehicle is lighter. Meanwhile, the cost in the production process of the battery pack box body can be reduced, the forming efficiency of the battery box body can be effectively improved through the framework formed by intersecting the first beam and the second beam, and the production period is shortened.

Description

Battery pack box, battery pack and vehicle

Technical Field

The utility model belongs to the technical field of vehicles, and particularly relates to a battery pack box, a battery pack and a vehicle.

Background

In the technical field of electric automobiles, a battery pack plays an important role as a power source of the electric automobile. With the development of new energy vehicle industry, the whole industry has higher and higher requirements on the safety of batteries in the battery pack.

The traditional battery pack box body mainly comprises a pair of side plates, a pair of end plates and a bottom plate, wherein the side plates, the end plates and the bottom plate are all made of metal materials, the side plates, the end plates and the bottom plate are connected together through welding, and the traditional battery pack box body is heavy in general weight and is not beneficial to the light weight of a battery pack.

Disclosure of Invention

The embodiment of the utility model provides a battery pack box, a battery pack and a vehicle, which at least can solve the problem of unbalanced weight of the battery pack box.

Embodiments of the present utility model provide a battery pack case including a case main body and a frame. The tank body has a hollow cavity. The frame is arranged in the hollow cavity, the frame is connected with the box main body and encloses to form a containing groove for containing the battery, the frame comprises a first beam and a second beam, and the first beam and the second beam are intersected and define a plurality of through grooves.

In some alternative embodiments, the flexible layer is disposed in and covers the through-slot.

In some alternative embodiments, the thickness of the flexible layer is less than the thickness of the first beam; and/or the thickness of the flexible layer is smaller than the thickness of the second beam.

In some alternative embodiments, the receiving slot includes a plurality of sub-slots disposed side-by-side along a first direction that is perpendicular to the thickness direction.

In some alternative embodiments, the frame includes a plurality of first beams spaced apart along the first direction; the frame also comprises a plurality of baffles, each baffle is arranged on the corresponding first beam, the baffles protrude towards the direction of the battery relative to the first beam, and the plurality of baffles define a plurality of sub-grooves.

In some alternative embodiments, the flexible layer is made of a material selected from one of PVC, TPE, TPU, MPPE and foam.

In some alternative embodiments, the frame includes a plurality of first beams spaced apart along the first direction and at least one second beam extending along the first direction, the second beams being connected to the plurality of first beams, respectively.

In some alternative embodiments, the tank body is an integrally formed structure.

In some alternative embodiments, the tank body is compression molded with the frame.

In some alternative embodiments, the material of the tank body is selected from one of an SMC composite material, a PCM composite material, and a carbon fiber material.

Embodiments of the second aspect of the present utility model also provide a battery pack including the battery pack case of the first aspect.

Embodiments of the third aspect of the present utility model also provide a vehicle including the battery pack of the second aspect.

The battery pack box body comprises a box body and a frame, wherein the frame comprises a first beam and a second beam, the first beam is intersected with the second beam and is provided with a plurality of through grooves, and the weight of the battery pack box body can be reduced on the premise that the frame has larger supporting force and strength, so that the whole vehicle is lighter. Meanwhile, the cost in the production process of the battery pack box body can be reduced, the forming efficiency of the battery box body can be effectively improved through the framework formed by intersecting the first beam and the second beam, and the production period is shortened.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are needed to be used in the embodiments of the present utility model will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.

Fig. 1 is a schematic view of a battery pack case according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a frame of a battery pack case according to an embodiment of the present utility model;

fig. 3 is a schematic view of the structure of a case body of a battery pack case according to an embodiment of the present utility model.

Reference numerals illustrate:

100. a battery pack case; 101. a receiving groove; 1011. a subslot;

10. a box main body;

20. a frame; 21. a first beam; 22. a second beam; 23. a through groove; 24. a flexible layer; 25. a baffle;

x, a first direction; y, second direction; z, thickness direction.

Detailed Description

Features and exemplary embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present utility model; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present utility model and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. Furthermore, 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.

The directional terms appearing in the following description are all directions shown in the drawings and do not limit the specific structure of the embodiment of the present utility model. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

In order to solve the existing technical problems, the embodiment of the utility model provides a battery pack box, a battery pack and a vehicle. For a better understanding of the present utility model, a battery pack case, a battery pack, and a vehicle device according to embodiments of the present utility model are described in detail below with reference to fig. 1 to 3.

The battery pack case provided by the embodiment of the utility model will be described first.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a battery pack case according to an embodiment of the utility model; fig. 2 is a schematic structural view of a frame of a battery pack case according to an embodiment of the present utility model.

As shown in fig. 1 and 2, the present utility model provides a battery pack case 100 including a case body 10 and a frame 20, the case body 10 having a hollow cavity. The frame 20 is disposed in the hollow cavity, the frame 20 is connected with the case body 10 and encloses a receiving groove 101 for receiving a battery, the frame 20 includes a first beam 21 and a second beam 22, and the first beam 21 and the second beam 22 intersect and define a plurality of through grooves 23.

The battery pack case 100 of the present utility model may be used as a storage device for a battery pack or may protect the battery pack.

The case body 10 has a hollow cavity, and it is understood that both ends in the height direction of the case body 10 have openings, wherein the frame 20 is provided in the opening of one end of the case body 10, and the opening of the other end can be used for the cover body to be closed. The case body 10 may have various shapes, regular, such as a rectangular parallelepiped, a square, a cylinder, etc., and may have other irregular shapes, and the shape of the case body 10 should not affect the accommodation of the battery pack, and the present utility model does not limit the specific shape of the case body 10. The tank body 10 may be made of various materials, such as steel, aluminum alloy, or other composite materials.

In the embodiment of the present utility model, the case body 10 may be an integrally formed structure or a separate structure.

And a frame 20 disposed in the hollow cavity of the case body 10, connected to the case body 10 and enclosing to form a receiving groove 101, the receiving groove 101 being used to receive the hollow cavity, the frame 20 being located at the bottom of the case body 10. The connection between the case body 10 and the frame 20 may be various, such as welding, bonding, etc., or the case body 10 and the frame 20 may be integrally formed as a single body, and the case body 10 and the frame 20 have high connection strength, and are not easily detached when they are impacted. The frame 20 may be made of various materials, such as steel, aluminum alloy, or other composite materials.

In the embodiment of the present utility model, the frame 20 includes a first beam 21 and a second beam 22, and the first beam 21 and the second beam 22 intersect and define a plurality of through slots 23, it being understood that the first beam 21, the second beam 22, and the tank body 10 enclose the plurality of through slots 23. The utility model forms the main body structure of the frame 20 through the first beam 21 and the second beam 22, and a plurality of through grooves 23 are arranged on the frame 20, so that the weight of the frame 20 can be reduced on the premise that the frame 20 can bear the battery pack and protect the battery pack from collision.

In the embodiment of the present utility model, the frame 20 includes the first beam 21 and the second beam 22, the frame 20 may include one first beam 21 and one second beam 22, or the frame 20 may include one first beam 21 and a plurality of second beams 22, or the frame 20 may include a plurality of first beams 21 and a plurality of second beams 22. The first beam 21 and the second beam 22 may be determinable according to the structure of the case body 10 or the number of battery packs.

Alternatively, the first beam 21 is arranged perpendicular to the second beam 22.

The battery pack case 100 provided in the embodiment of the utility model includes a case main body 10 and a frame 20, the frame 20 includes a first beam 21 and a second beam 22, the first beam 21 intersects with the second beam 22 and defines a plurality of through grooves 23, the frame 20 has a plurality of through grooves 23, and the weight of the battery pack case 100 can be reduced on the premise of ensuring that the frame 20 has a large supporting force and strength, so that the vehicle overall is lighter. Meanwhile, the cost in the production process of the battery pack box body 100 can be reduced, the forming efficiency of the battery box body can be effectively improved through the frame 20 formed by intersecting the first beam 21 and the second beam 22, and the production period is shortened.

In some alternative embodiments, as shown in fig. 1, a flexible layer 24 is further included, the flexible layer 24 being disposed in the through slot 23 and covering the through slot 23.

In the embodiment of the present utility model, the flexible layer 24 is disposed on the through grooves 23 and covers the through grooves 23, the flexible layer 24 may be in an integral structure, a whole piece of the flexible layer 24 is covered on the frame 20 to cover each through groove 23, and the flexible layer 24 is disposed on a side of the through groove 23 away from the battery pack. The flexible layer 24 comprises a plurality of flexible layers 24, each through slot 23 being provided with at least one flexible layer 24.

In these alternative embodiments, the battery pack case 100 further includes a flexible layer 24, the flexible layer 24 being disposed in the through groove 23 and covering the through groove 23. So arranged, on the one hand, the flexible layer 24 can seal the through groove 23, so that the battery pack is in a relatively closed space, and the heat preservation of the battery pack is realized; on the other hand, the flexible layer 24 is lighter in weight than steel plates, aluminum alloy plates, and the like, and can reduce the weight of the battery pack case 100 while achieving a better heat preservation effect. In addition, when the battery pack case 100 receives an external impact force, the flexible layer 24 can effectively disperse the impact forces of the first beam 21 and the second beam 22, can further enhance the structural strength of the battery pack case 100, and can also improve the impact-receiving capability.

In some alternative embodiments, as shown in fig. 1, the thickness of the flexible layer 24 is less than the thickness of the first beam 21.

Illustratively, the thickness of the first beam 21 and the thickness of the second beam 22 are equal, i.e. the surfaces of the first beam 21 and the second beam 22 are flush, and the thickness of the flexible layer 24 is smaller than the first beam 21, the second beam 22.

Illustratively, the thickness of the first beam 21 is greater than the thickness of the second beam 22, the thickness of the flexible layer 24 is less than the thickness of the first beam 21, the thickness of the flexible layer 24 may be equal to the thickness of the second beam 22, or the thickness of the flexible layer 24 is less than the thickness of the second beam 22.

In these alternative embodiments, the thickness of the flexible layer 24 is smaller than the thickness of the first beam 21, and it is understood that the first beam 21 and the flexible layer 24 form a height difference along the thickness direction Z of the frame 20, so that an avoidance space can be reserved for the battery pack, and the weight of the battery pack case 100 can be further reduced.

In some alternative embodiments, the thickness of the flexible layer 24 is less than the thickness of the second beam 22.

In some alternative embodiments, as shown in fig. 1 and 2, the receiving groove 101 includes a plurality of sub-grooves 1011, and the plurality of sub-grooves 1011 are arranged side by side along a first direction X, which is perpendicular to the thickness direction Z.

In the embodiment of the present utility model, the accommodating groove 101 includes 2 to 10 sub-grooves 1011.

In the embodiment of the present utility model, the number of the accommodating groove 101 including the sub-groove 1011 is 2, 3, 4, 5, 6, 7, 8, 9 or 10 within other ranges consisting of any two end points described above.

Alternatively, the accommodating groove 101 includes 2 sub-grooves 1011.

In these alternative embodiments, the accommodating groove 101 includes a plurality of sub-grooves 1011, each sub-groove 1011 is used for accommodating a battery pack, and a plurality of battery packs can be accommodated in the battery pack case 100, and the placement positions of the battery packs can be planned by the arrangement of the plurality of sub-grooves 1011, so that the problem that the battery packs are damaged due to mutual extrusion is reduced.

In some alternative embodiments, as shown in fig. 1 and 2, the frame 20 includes a plurality of first beams 21, the plurality of first beams 21 being spaced apart along the first direction X. The frame 20 further includes a plurality of baffles 25, each baffle 25 is disposed on the corresponding first beam 21, and the baffles 25 protrude toward the battery with respect to the first beam 21, and the plurality of baffles 25 define a plurality of sub-slots 1011.

In the embodiment of the present utility model, as shown in fig. 1 and 2, the frame 20 further includes a baffle plate 25, the baffle plate 25 is disposed on the first beam 21, and the baffle plate 25 protrudes toward the battery with respect to the first beam 21, and the battery pack is disposed between two adjacent baffle plates 25, that is, two adjacent baffle plates 25 define a sub-slot 1011.

Alternatively, the battery pack case 100 has a predetermined length and width, the length direction of the battery pack case 100 is parallel to the first direction X, and the width direction of the battery pack case 100 is parallel to the second direction Y.

In the embodiment of the present utility model, the baffle 25 may be connected to the first beam 21 in various manners, such as welding, clamping, riveting, bonding, etc., or the baffle 25 and the first beam 21 may be integrally formed as a single body.

Alternatively, the first beam 21 includes a first sub-beam and a second sub-beam, the baffle 25 includes a first surface and a second surface disposed opposite to each other, the first sub-beam is connected to the first surface, and the second sub-beam is connected to the second surface.

More optionally, the first sub-beam and the second sub-beam have equal widths along the first direction X.

In the embodiment of the present utility model, the baffle 25 is provided on the first beam 21 and extends in the second direction Y, and both ends of the baffle 25 are abutted against the tank main body 10.

Alternatively, the plurality of baffles 25 are equally spaced along the first direction X.

Illustratively, the frame 20 includes three first beams 21, one first beam 21 and three baffles 25, the three first beams 21 are equidistantly spaced along the first direction X, each baffle 25 is disposed on its corresponding first beam 21, and the baffles 25 protrude toward the battery with respect to the first beam 21, each baffle 25 extends along the second direction Y, both ends of each baffle 25 abut against the case body 10, and the three baffles 25 define two sub-slots 1011 for accommodating the battery packs. The second direction Y is perpendicular to the first direction X and the thickness direction Z.

In these alternative embodiments, the frame 20 includes a plurality of baffles 25, the plurality of baffles 25 defining a plurality of sub-slots 1011, and the battery pack is disposed between adjacent two of the baffles 25, and the baffles 25 are capable of effectively dispersing impact forces opposite to the respective sub-slots 1011 when the battery pack case 100 is subjected to external impact forces, thereby effectively shielding the sub-slots 1011. When the battery pack is arranged in each sub-groove 1011 defined by the plurality of baffles 25, the baffles 25 can play a good role in protecting the battery pack, so that the impact risk of the external impact force on the battery pack is reduced, and the overall safety of the battery is improved.

In some alternative embodiments, the flexible layer 24 is made of a material selected from one of PVC, TPE, TPU, MPPE and foam.

Optionally, the flexible layer 24 is made of foam. The heat preservation effect of the foam is better.

In these alternative embodiments, the flexible layer 24 is made of a material selected from one of PVC (polyvinyl chloride), TPE (tetraphenyl ethylene), TPU (thermoplastic polyurethane elastomer), MPPE (modified polyphenylene ether) or foam. Has the advantages of chemical corrosion resistance, high temperature resistance, flame retardance, strong tensile and bending resistance, good heat preservation effect and the like.

In some alternative embodiments, the frame includes a plurality of first beams 21 and at least one second beam 22, the plurality of first beams 21 being spaced apart along a first direction, the second beams 22 extending along the first direction, and the second beams 22 being respectively connected to the plurality of first beams 21.

In these alternative embodiments, the second beams 22 are connected to the plurality of first beams 21, so that not only a plurality of through grooves 23 can be defined, but also a greater supporting force and strength of the frame 20 can be ensured.

Referring to fig. 3 in combination, fig. 3 is a schematic view of the structure of the case body of the battery pack case according to the embodiment of the present utility model.

In some alternative embodiments, as shown in fig. 1 and 3, the tank body 10 is of an integrally formed construction.

In these alternative embodiments, the case body 10 is an integrally formed structure, improving the structural strength and impact resistance of the battery pack case 100. Moreover, the box body 10 is manufactured by integral processing, which is convenient for manufacturing and shaping and can reduce the manufacturing cost to a certain extent.

In some alternative embodiments, the tank body 10 is compression molded with the frame 20.

In the embodiment of the present utility model, the frame 20 is placed in a hot-pressing mold, and is molded with the case body 10, and the case body 10 is connected with the frame 20 after the molding, thereby forming a stable battery pack case 100 structure.

In these alternative embodiments, the case body 10 is compression molded with the frame 20, so that the sealability of the case body 10 after being coupled with the frame 20 can be improved, and the sealability of the battery pack case 100 can be ensured.

In some alternative embodiments, the material of the tank body 10 is selected from one of SMC composite material, PCM composite material, and carbon fiber material.

Optionally, the material of the case body 10 is PCM composite material.

In these alternative embodiments, the material of the tank body 10 is selected from one of SMC composite material, PCM composite material, carbon fiber material, which has advantages of light weight, high strength, high impact resistance, and the like.

Embodiments of the second aspect of the present utility model also provide a battery pack including the battery pack case 100 of the first aspect. The second embodiment of the present utility model has the advantages of the first embodiment of the present utility model, and will not be described herein.

The battery pack case 100 provided by the embodiment of the utility model comprises a case body 10 and a frame 20, wherein the case body 10 is made of a PCM composite material, and the case body 10 is provided with a hollow cavity. The frame 20 is arranged in the hollow cavity, the frame 20 is connected with the box main body 10 and encloses to form a containing groove 101 for containing batteries, the containing groove 101 comprises 2 sub-grooves 1011,2 sub-grooves 1011 which are arranged side by side along a first direction X, the first direction X is perpendicular to a thickness direction Z, the frame 20 comprises 3 first beams 21, 1 second beams 22 and 3 baffles 25, the 3 first beams 21 and 1 second beams 22 are intersected and define 4 through grooves 23, foam cotton is arranged in each through groove 23, and the foam cotton covers the through grooves 23. Each of the baffles 25 is disposed on the corresponding first beam 21, and the baffles 25 protrude toward the battery direction relative to the first beam 21, each of the baffles 25 extends along a second direction Y, the second direction Y is perpendicular to the first direction X and the thickness direction Z, two ends of each of the baffles 25 abut against the case main body 10, and 2 sub-slots 1011 for accommodating the battery packs are defined by 3 baffles 25.

Other constructions and operations of electronic devices according to embodiments of the present utility model will be known to those of ordinary skill in the art, and will not be described in detail herein in the description of the present utility model, the description of the terms "one embodiment," "some embodiments," "exemplarily," "in embodiments of the present utility model," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A battery pack case, comprising:

the box body is provided with a hollow cavity and is of an integrated structure;

the frame, the frame is arranged in the cavity, the frame with the case main part is connected and encloses and form the holding tank that is used for holding the battery, the frame includes first roof beam and second roof beam, first roof beam with the second roof beam intersects and defines a plurality of logical grooves.

2. The battery pack case according to claim 1, further comprising:

the flexible layer is arranged in the through groove and covers the through groove.

3. The battery pack case according to claim 2, wherein,

the thickness of the flexible layer is less than the thickness of the first beam; and/or

The thickness of the flexible layer is less than the thickness of the second beam.

4. The battery pack case according to claim 3, wherein,

the accommodating groove comprises a plurality of sub-grooves, the sub-grooves are arranged side by side along a first direction, and the first direction is perpendicular to the thickness direction.

5. The battery pack case according to claim 4, wherein,

the frame comprises a plurality of first beams which are arranged at intervals along a first direction;

the frame also comprises a plurality of baffles, each baffle is arranged on the corresponding first beam, the baffles protrude towards the direction of the battery relative to the first beam, and the plurality of baffles define a plurality of sub-grooves.

6. The battery pack case according to claim 2, wherein,

the flexible layer is made of one of PVC, TPE, TPU, MPPE or foam.

7. The battery pack case according to claim 1, wherein,

the frame comprises a plurality of first beams and at least one second beam, the first beams are arranged at intervals along a first direction, the second beams extend along the first direction, and the second beams are respectively connected with the first beams.

8. The battery pack case according to claim 1, wherein,

the box body is compression molded with the frame.

9. The battery pack case according to claim 1, wherein,

the material of the box main body is selected from one of SMC composite material, PCM composite material and carbon fiber material.

10. A battery pack comprising the battery pack case according to any one of claims 1 to 9.

11. A vehicle comprising the battery pack of claim 10.