CN217239626U

CN217239626U - Battery box and new energy automobile

Info

Publication number: CN217239626U
Application number: CN202122326626.XU
Authority: CN
Inventors: 李锐; 代康伟; 盛军; 李彦良
Original assignee: Beijing Electric Vehicle Co Ltd
Current assignee: Beijing Electric Vehicle Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-08-19
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a battery box and new energy automobile, battery box includes: the lower box body is internally provided with an accommodating space; support the skeleton, support the skeleton and establish in accommodation space, support the skeleton and include first supporting beam and second supporting beam, first supporting beam and second supporting beam support respectively under between two relative lateral walls of box, wherein, first supporting beam, the assembly chamber of the rectangle that allows the battery module assembly is injectd with the lateral wall of box down to the second supporting beam, the width in assembly chamber is greater than the width of battery module, and the corner assembly of the neighbouring first supporting beam of battery module and second supporting beam, so that construct first headspace between battery module and the box lateral wall. According to the utility model discloses battery box through set up the supporting framework in the box down, can improve the structural strength and the anti deformability of box down, through construct first headspace in the assembly intracavity, can provide the deformation space for battery box.

Description

Battery box and new energy automobile

Technical Field

The utility model belongs to the technical field of the electronic battery and specifically relates to a battery box and new energy automobile are related to.

Background

The consequence of the pure electric vehicle collision accident is different from the traditional fuel vehicle. The pure electric vehicle not only can cause deformation of a vehicle body and mechanical injury of passengers, but also can cause the deformation and cracking of a battery pack or a module due to the impact or extrusion of a high-voltage system, so that electric leakage, thermal shock, explosion, combustion and the like occur, and the passengers can be possibly damaged by electricity, chemistry, battery explosion, combustion and the like. The collision safety performance of the conventional fuel vehicle can be developed only around the passengers, and the basic idea is to reduce the mechanical injury of the passengers by controlling the acceleration and deformation of the vehicle body. The collision safety performance of the pure electric vehicle considers two key points of a passenger and a power battery pack, and the damage value of the passenger is not only concerned. Safety protection of the power battery in case of collision is also considered.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a battery box, battery box structural strength is high, the anti deformability is good, and still reserve and have the deformation space.

According to the utility model discloses battery box includes: the refrigerator comprises a lower box body, a door body and a door body, wherein an accommodating space is formed in the lower box body; support chassis, support chassis establishes in the accommodation space, support chassis includes first supporting beam and second supporting beam, first supporting beam with the second supporting beam supports respectively between two lateral walls that the box is relative down, wherein, first supporting beam the second supporting beam with the lateral wall of box prescribes a limit to the assembly chamber of the rectangle that allows the assembly of battery module down, the width in assembly chamber is greater than the width of battery module, just the battery module is close to first supporting beam with the corner assembly of second supporting beam, so that the battery module with construct first headspace between the box lateral wall.

According to the utility model discloses battery box through set up the supporting framework in the box down, can improve the structural strength and the anti deformability of box down, through construct first headspace in the assembly intracavity, can provide the deformation space for battery box, can be so that battery box also be difficult for influencing battery module even receive great impact.

In addition, according to the utility model discloses a battery box can also have following additional technical characterstic:

in some embodiments of the utility model, the lower box body comprises a box bottom plate, a first assembly part is formed on the box bottom plate, and the battery module is assembled on the box bottom plate through the first assembly part.

In some embodiments of the present invention, a second assembly part is formed on the first support beam and/or the second support beam, and the battery module is assembled on the first support beam and/or the second support beam through the second assembly part.

In some embodiments of the present invention, the lower box further comprises a box frame, and the box frame is disposed along an edge of the box bottom plate.

In some embodiments of the present invention, the battery box includes a first box and a second box in sequence, the accommodating space is located in the second box, and a second reserved space is further formed in the second box, and the second reserved space is located in the accommodating space away from one side of the first box.

In some embodiments of the present invention, the lower box further includes a third supporting beam, and the third supporting beam is supported in the second reserved space along the length direction of the battery box.

In some embodiments of the present invention, one of the first support beam and the second support beam extends along a length direction of the battery box to be in the same straight line with the third support beam.

In some embodiments of the utility model, the lower box body further comprises a spacing beam, the spacing beam is arranged between the accommodating space and the second reserved space, so as to separate the accommodating space from the spacing space.

In some embodiments of the present invention, the first supporting beam and the second supporting beam are respectively provided with a plurality of supporting beams, a plurality of supporting beams are arranged at equal intervals, and a plurality of supporting beams are arranged at equal intervals.

Additionally, the utility model discloses still provide a new energy automobile of battery box that has above-mentioned embodiment.

According to the utility model discloses new energy automobile includes automobile frame and the battery box of assembly in automobile frame. Therefore, through the battery box provided with the embodiment, when the new energy automobile is collided, the battery module in the battery box can not be easily influenced, the battery module is not collided, safety problems such as short circuit or thermal runaway are not easily caused, and then the new energy automobile can be ensured not to be subjected to phenomena such as fire and explosion after collision because of the battery module, so that the safety of passengers in the automobile can be ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an angle of a lower case of a battery box according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of another angle of the lower case of the battery box according to the embodiment of the present invention.

Reference numerals are as follows:

a lower box body 10, a first box body 11, a second box body 12, a first reserved space 13, a second reserved space 14, a third supporting beam 15, a spacing beam 16,

A support framework 20, a first support beam 21, a second support beam 22,

A battery module 30.

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 only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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 to implicitly indicate 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 description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 of ordinary skill in the art.

A battery box according to an embodiment of the present invention is described below with reference to fig. 1 and 2.

As shown in fig. 1 and fig. 2, the battery box according to the embodiment of the present invention includes a lower box 10 and a supporting framework 20, a containing space is formed in the lower box 10, the supporting framework 20 is disposed in the containing space, the supporting framework 20 includes a first supporting beam 21 and a second supporting beam 22, the first supporting beam 21 and the second supporting beam 22 are respectively supported between two opposite side walls of the lower box 10, therefore, the structural strength of the lower box 10 can be effectively improved through the first supporting beam 21 and the second supporting beam 22, when the battery box is collided, the lower box 10 can have better anti-collision ability, and thus, the battery box can be prevented from being affected by the battery in the battery box after being collided.

Further, when the battery box is collided with by a large force, some deformation inevitably occurs, and thus, in the present application, the first support beam 21, the second support beam 22 and the side wall of the lower case 10 are made to define a rectangular fitting cavity allowing the battery module 30 to be fitted, wherein the width of the fitting cavity is greater than the width of the battery module 30, and the battery module 30 is fitted adjacent to the corners of the first support beam 21 and the second support beam 22, so that the first reserve space 13 is constructed between the battery module 30 and the side wall of the case. That is, when the first support beam 21 and the second support beam 22 are designed, the assembly cavity defined by the first support beam 21, the second support beam 22 and the side wall of the lower case 10 is larger than the battery module 30 at least in the width direction, so that when the battery is placed or assembled, the battery module 30 and the side wall of the case can be easily spaced to form the first reserved space 13, and thus, even if the battery case is deformed due to a large impact, the battery module 30 in the battery case is not affected.

Here, the size of the first headspace 13 may be designed according to actual circumstances, and for example, when the battery box is mounted on an electric train, the collision force that the electric train generally receives is 30N, and in this case, the maximum deformation amount of the battery box under the action of the collision force may be experimentally measured, and the first headspace 13 of the battery box may be designed.

In addition, it should be noted that, in an example, the structure of the battery box may be a rectangular parallelepiped as shown in fig. 1, the first support beams 21 and the second support beams 22 are respectively arranged along the length direction and the width direction of the battery box, for convenience of description, the first support beams 21 are arranged to extend along the length direction of the battery box, the second support beams 22 are arranged to extend along the width direction of the battery box, in fig. 1, the number of the first support beams 21 is two, and the number of the second support beams 22 is one, so that the assembly cavities described in this application are formed into four, and two cavities for assembling the battery module 30 are not within the limit range of the assembly cavity described in this application, that is, the volumes of the two cavities in the middle can be designed according to the volume of the battery module 30, and are not limited herein.

In another example, the structure of the battery box may not be a rectangular parallelepiped, and thus, a cavity that does not allow the battery module 30 to be assembled may be formed between the first support beam 21, the second support beam 22 and the side wall of the lower case 10, that is, the volume of the cavity is smaller than the volume of the battery module 30, and for this cavity, the limitation of the assembly cavity described in this application is not included, and the cavity is formed mostly at the corners of the case, so that a certain deformation space may be provided to the battery box to some extent.

Therefore, according to the utility model discloses according to the battery box, through set up supporting framework 20 in box 10 under, can improve the structural strength and the anti deformability of box 10 down, construct first headspace 13 through assembling the intracavity, can provide the deformation space for the battery box, can be so that the battery box also be difficult for influencing battery module 30 even receive great impact.

In some embodiments of the present invention, the lower case 10 includes a case bottom plate, a first assembly part is formed on the case bottom plate, the battery module 30 is assembled on the case bottom plate through the first assembly part, and further, a second assembly part is formed on the first supporting beam 21 and/or the second supporting beam 22, and the battery module 30 is assembled on the first supporting beam 21 and/or the second supporting beam 22 through the second assembly part. Thus, in the first example, the battery module 30 may be mounted on the case floor by the first fitting member; in a second example, the battery module 30 may be mounted on the first support beam 21 by a second fitting; in a third example, the battery module 30 may be fitted on the second support beam 22 by a second fitting; in the fourth example, the battery module 30 may be simultaneously mounted on the case floor, the first support beam 21, and the second support beam 22 by the first and second mounting members.

The utility model discloses an in some embodiments, lower box 10 still includes the box frame, and the box frame sets up along the edge of box bottom plate, from this, can further improve the structural strength of lower box 10 through setting up the box frame to improve the anti collision ability of battery box.

In some embodiments of the present invention, in the length direction of the battery box, the battery box sequentially includes the first box 11 and the second box 12, the accommodating space is located in the second box 12, and the second reserving space 14 is formed in the second box 12, and the second reserving space 14 is located on one side of the accommodating space away from the first box 11.

As shown in fig. 1, in the length direction of the battery box, the two ends of the accommodating space are respectively formed with a first box body 11 and a second reserved space 14, so that, in the width direction, the battery module 30 can provide a space for the deformation of the battery box through the first reserved space 13, in the length direction, the battery module can respectively offset the collision force and the deformation through the first box body 11, and provide a space for the deformation of the battery box through the second reserved space 14, thereby protecting the battery module 30 installed in the accommodating space in all directions.

Further, a third supporting beam 15 may be included in the battery box, and the third supporting beam 15 may be supported in the second reserved space 14 along the length direction of the battery box, so that the battery box may better bear the impact force from the length direction of the battery box, and the third supporting beam 15 may be provided in plurality, and the plurality of third supporting beams 15 are uniformly spaced apart.

Further, one of the first support beam 21 and the second support beam 22 extends in the length direction of the battery box so as to be in line with the third support beam 15. For example, as shown in fig. 1, the first support beam 21 extends in the longitudinal direction of the battery box so that the first support beam 21 and the third support beam 15 are aligned, and the resistance of the battery box against the collision force from the longitudinal direction of the battery box can be further improved.

Further, a spacing beam 16 can be further arranged in the battery box, and the spacing beam 16 is arranged between the accommodating space and the second reserved space 14 to separate the accommodating space from the spacing space, so that the accommodating space can be better sealed, and the structural strength of the battery box can be further improved.

Further, the first support beam 21 and the second support beam 22 are respectively provided in plural numbers, the plural first support beams 21 are arranged at regular intervals, and the plural second support beams 22 are arranged at regular intervals.

Additionally, the utility model discloses still provide a new energy automobile of battery box who has above-mentioned embodiment.

According to the utility model discloses new energy automobile includes automobile frame and the battery box of assembly in automobile frame. Therefore, when the new energy automobile is collided, the battery module 30 in the battery box can not be easily influenced, the battery module 30 cannot be collided, safety problems such as short circuit or thermal runaway cannot occur easily, and then the new energy automobile can be prevented from being subjected to fire, explosion and other phenomena after collision because of the battery module 30, and safety of passengers in the automobile can be guaranteed.

In a specific example, the battery box is arranged at the longitudinal beam after being assembled in the automobile frame, and at the moment, only the position of the first reserved space 13 needs to be oriented to or just opposite to the longitudinal beam during assembly, so that when the longitudinal beam deforms and collides with the battery box, the first reserved space 13 can provide a space for deformation of the battery box, the battery module 30 cannot be influenced, and the protection effect of the battery module 30 is good.

Other configurations and operations of the battery box and the new energy automobile according to the embodiments of the present invention are known to those skilled in the art, and will not be described in detail herein.

In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean 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 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery box, comprising:

the lower box body is internally provided with an accommodating space;

support chassis, support chassis establishes in the accommodation space, support chassis includes first supporting beam and second supporting beam, first supporting beam with the second supporting beam supports respectively between two lateral walls that the box is relative down, wherein, first supporting beam the second supporting beam with the lateral wall of box prescribes a limit to the assembly chamber of the rectangle that allows the assembly of battery module down, the width in assembly chamber is greater than the width of battery module, just the battery module is close to first supporting beam with the corner assembly of second supporting beam, so that the battery module with construct first headspace between the box lateral wall.

2. The battery box according to claim 1, wherein the lower case includes a case bottom plate on which a first assembly part is formed, and the battery module is mounted on the case bottom plate through the first assembly part.

3. A battery box according to claim 1 or 2, characterized in that a second fitting member is formed on the first support beam and/or the second support beam, and the battery module is fitted on the first support beam and/or the second support beam by the second fitting member.

4. The battery box of claim 2, wherein the lower box further comprises a box frame disposed along an edge of the box bottom panel.

5. The battery box according to claim 1, wherein the battery box comprises a first box body and a second box body in sequence in a length direction of the battery box, the accommodating space is located in the second box body, a second reserved space is further formed in the second box body, and the second reserved space is located on one side, away from the first box body, of the accommodating space.

6. The battery box according to claim 5, characterized in that the lower box body further comprises a third support beam supported in the second headspace along the length direction of the battery box.

7. A battery box according to claim 6, wherein one of the first and second support beams extends in a length direction of the battery box so as to be in line with the third support beam.

8. The battery box according to claim 1, wherein the first support beam and the second support beam are respectively provided in plural numbers, the plural first support beams are arranged at regular intervals, and the plural second support beams are arranged at regular intervals.

9. A new energy automobile is characterized by comprising:

an automobile frame;

the battery box of any of claims 1-8, which fits within the vehicle frame.