CN212046907U

CN212046907U - Power battery package and car

Info

Publication number: CN212046907U
Application number: CN202020070355.9U
Authority: CN
Inventors: 张苗莉; 鲁慧才; 廖慧红; 许伟; 朱挺
Original assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-12-01
Anticipated expiration: 2030-01-14

Abstract

The utility model discloses a power battery pack, which comprises a shell, at least two beams and a bracket, wherein the two ends of the beams are lapped with the frame of the shell; the support is arranged at the lap joint of the cross beam and the frame of the shell. The utility model also discloses an automobile has used foretell power battery package frame construction. The utility model relates to a power battery package simple structure has promoted the security performance of the battery package that the side post bumped through addding the support in crossbeam and casing overlap joint department.

Description

Power battery package and car

Technical Field

The utility model belongs to the power battery field, concretely relates to power battery package and car.

Background

In recent years, the national and global requirements for automobile exhaust emission are becoming more stringent, and therefore, the development of electric automobiles is hot. The battery pack is used as a core component of the electric automobile, and a battery module used for storing electric energy is loaded in the battery pack to provide power for the electric automobile. In the running process of the electric automobile, the battery pack can be subjected to corresponding vibration or impact due to external vibration or impact; however, the battery pack has a low mode and poor strength and rigidity; once the battery pack is subjected to vibration or impact, the battery pack is easily extruded and deformed, and the risk of leaking liquid and fire is generated. In the prior art, the total arrangement of the whole vehicle and the space in the vehicle are adjusted in order to improve the anti-extrusion capacity of the battery pack, the design and planning of the whole vehicle are influenced, or the battery module is placed into a frame structure, the electric vehicle is subjected to vibration or impact, and when the battery pack is subjected to corresponding vibration or impact, the frame structure resists the vibration or impact, so that the power battery pack and the vehicle which protect the battery module are used, and liquid leakage is prevented. However, the frame structure in the conventional battery pack has difficulty in resisting vibration or impact of large strength.

SUMMERY OF THE UTILITY MODEL

To the technical problem in the background art, the utility model provides a power battery package and car that has fallen battery package and has received extruded risk promotes vehicle side collision's security performance.

The utility model discloses a realize through following technical scheme:

a power battery pack comprises a shell, cross beams and a support, wherein at least two cross beams are arranged in the shell, and two ends of each cross beam are in lap joint with a frame of the shell; the support is arranged at the lap joint of the cross beam and the frame of the shell.

Further, the power battery pack further comprises a battery module, and the battery module is arranged in a cavity formed by the cross beam and the shell.

Furthermore, the cross beam is of a frame structure with a trapezoidal section; a second supporting piece and at least two first supporting pieces are arranged inside the cross beam, and the first supporting pieces are parallel to the end face of the cross beam; the second supporting piece and the first supporting piece are arranged at an included angle and are not in contact with each other.

Further, at least two first supporting pieces are made of the same material and have different thicknesses.

Further, the casing is square, and at least two crossbeams are parallel to each other and arranged along the width direction of the casing.

Furthermore, the interval between at least two crossbeams is even.

Furthermore, the support is of a frame structure with a triangular cross section, and a third support piece and a fourth support piece which are perpendicular to each other and connected end to end are arranged in the support.

Furthermore, the beam is respectively and fixedly connected with the automobile seat beam structure and the automobile middle channel structure.

Furthermore, a longitudinal beam is arranged in the shell, and the longitudinal beam and the cross beam are perpendicular and crosswise arranged in the shell.

The utility model also provides an automobile, used the aforesaid arbitrary power battery package.

Adopt above-mentioned technical scheme, the utility model provides a power battery package and car has following beneficial effect:

1. the support is additionally arranged at the lap joint of the frame of the cross beam and the shell, so that the distance between the cross beams of the battery pack is reduced, and the transverse deformation of the battery pack is relatively reduced when the battery pack is extruded by the same obstacle avoidance force, thereby reducing the risk that the battery pack is extruded, and improving the safety performance of the battery pack collided by the side posts. The support is added to the lap joint of the battery pack beam and the frame, the stability of the beam can be further enhanced, when the battery pack frame is extruded, the cross section of the beam connected with the frame is relatively increased, so that the strength and the stability of the beam are increased, the strength of the structure of the whole battery pack is indirectly improved, and the safety performance of the side column collision is improved.

2. The cross section of the cross beam is a trapezoidal cross section, so that the stability of the cross beam is improved, the internal support of the cross beam is of a structure with different thicknesses, and the structural strength of the battery pack frame is improved and the risk of extrusion of the battery pack is reduced during side column collision; and the material utilization rate is also ensured to be optimal.

3. Through being connected to seat crossbeam structure and well channel structure with the crossbeam, further improved the bending strength and the structural stability of battery package structure, not only be favorable to the side column to bump the operating mode, this kind of connection also is favorable to the positive operating mode.

4. The utility model discloses a battery package simple structure can not influence the original overall arrangement of current battery package, can not influence whole car and always arrange and car inner space.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

Fig. 1 is a schematic structural diagram of a power battery pack frame structure according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a cross beam in a power battery pack frame structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a bracket structure when the bracket is triangular in the power battery pack frame structure according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a trapezoidal support structure of a power battery pack frame structure of the present invention.

Wherein the reference numerals in the figures correspond to: 1-shell, 2-cross beam, 3-battery module, 4-bracket, 5-longitudinal beam, 31-battery component, 21-first support member, 22-second support member, 31-third support member, 32-fourth support member, 41-fifth support member and 42-sixth support member.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, 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. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

As shown in fig. 1, a power battery pack includes a housing 1, beams 2, a battery module 3 and a support 4, wherein at least two beams 2 are arranged inside the housing 1, two ends of each beam 2 are overlapped with a frame of the housing 1, and the battery module 3 is arranged in a cavity formed by the beams 2 and the housing 1; the support 4 is arranged at the lap joint of the cross beam 2 and the frame of the shell 1. The battery module 3 is constituted by a plurality of battery packs 31. Whole battery package is by a little cavity is cut apart into to crossbeam 2, has increased the holistic intensity of battery package when the side post bumps like this, has reduced the risk that the battery package receives the extrusion at whole car post bumps the in-process, avoids appearing battery package weeping phenomenon of catching a fire. Crossbeam 2 still connects seat crossbeam structure and well channel structure through threaded connection's mode, has further improved the bending strength and the structural stability of battery package structure, not only is favorable to the side column to bump the operating mode, and this kind of connection also is favorable to the positive operating mode. In another embodiment of the present invention, the cross beam 2 is connected to the seat cross beam structure and the center channel structure by riveting; the present invention is not limited to the connection mode.

The embodiment of the utility model provides a through adding support 4 in the frame overlap joint of battery package crossbeam 2 and casing 1, can make the distance between each crossbeam 2 of battery package reduce, like this when receiving the extrusion of the same obstacle avoidance power, the lateral deformation of battery package will reduce relatively, thereby reduce the risk that the battery package receives the extrusion, promoted the security performance of the battery package that the side post bumped; in addition, add support 4 and can also strengthen crossbeam 2's stability in battery package crossbeam 2 and the frame overlap joint of casing 1, when the battery package frame received the extrusion, crossbeam 2 increased with the cross-section that the frame is connected relatively to increased crossbeam 2's intensity and stability, indirectly improved the intensity of the structure of whole battery package, also improved the side post and bumped holistic security performance. The embodiment of the utility model provides a casing 1 is squarely, two at least between the crossbeam 2 be parallel to each other and along casing 1's width direction arranges. As shown in fig. 1, the number of the beams 2 is three, and in other embodiments of the present invention, the number of the beams 2 may be other values than three; the embodiment of the utility model provides a do not make the limit to the quantity of crossbeam 2. Furthermore, the cross beams 2 are uniformly distributed in the shell at intervals.

In the embodiment of the present invention, as shown in fig. 2, the cross beam 2 is a frame structure with a trapezoidal cross section. A second support 22 and at least two first supports 21 are arranged inside the cross beam 2, and the first supports 21 are parallel to the end face of the cross beam 2; the second supporting members 22 and the first supporting members 21 are disposed at an included angle and are not in contact with each other, wherein at least two of the first supporting members 21 have the same material and different thicknesses. The cross section of the battery pack cross beam adopts a trapezoidal structure with different thicknesses, so that the material utilization rate and the structural stability are improved, the cross section of the cross beam adopts a trapezoidal structure with different thicknesses, the structural strength of a battery pack frame is improved in side column collision, and the risk of extrusion of a battery pack is reduced; and the material utilization rate is also ensured to be optimal.

In the embodiment of the present invention, as shown in fig. 3, the support 4 is a frame structure with a triangular cross section, and is internally provided with a third support member 31 and a fourth support member 32 which are perpendicular to each other and connected end to end. The embodiment of the utility model provides a through inside third support piece 31 and the fourth support piece 32 that sets up mutually perpendicular and end to end at the triangle-shaped frame, improved support 4's intensity and stability.

In other embodiments of the present invention, the support 4 may be trapezoidal (as shown in fig. 4) or have other shapes, and the present invention does not limit the specific shape of the support 4. When the support 4 is a trapezoid frame, a fifth support member 41 and a sixth support member 42 which are perpendicular to each other and connected end to end are arranged inside the trapezoid frame, so that the strength and stability of the support 4 are improved.

The embodiment of the utility model provides a still provide a car, the car has used the embodiment of the utility model provides a power battery package.

The embodiment of the utility model provides a power electric vehicle package and car adds support 4 through the frame overlap joint department at crossbeam 2 and casing 1, makes the distance between battery package crossbeam reduce, like this when receiving the same obstacle avoidance force extrusion, the transverse deformation of battery package will reduce relatively to reduce the battery package and receive extruded risk, promoted the security performance of the battery package that the side post bumped. The support 4 is added at the lap joint of the battery pack beam 2 and the frame, so that the stability of the beam 2 can be enhanced, and when the battery pack frame is extruded, the section of the beam 2 connected with the frame is relatively increased, so that the strength and the stability of the beam 2 are increased, the structural strength of the whole battery pack is indirectly improved, and the safety performance of the whole side column collision is improved; the cross section of the cross beam 2 is a trapezoidal cross section, so that the stability of the cross beam is improved, the internal support of the cross beam is of a structure with different thicknesses, and the structural strength of the battery pack frame is improved and the risk of extrusion of the battery pack is reduced during side column collision; the material utilization rate is also ensured to be optimal; the crossbeam 2 is connected to the seat crossbeam structure and the middle channel structure, so that the bending strength and the structural stability of the battery pack structure are further improved, the working condition of side column collision is facilitated, and the front working condition is also facilitated by the connection; the embodiment of the utility model provides a battery package simple structure can not influence the original overall arrangement of current battery package, can not influence whole car and always arrange and car inner space.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The power battery pack is characterized by comprising a shell (1), cross beams (2) and a support (4), wherein at least two cross beams (2) are arranged in the shell (1), and two ends of each cross beam (2) are in lap joint with a frame of the shell (1); the support (4) is arranged at the lap joint of the cross beam (2) and the frame of the shell (1).

2. The power battery pack according to claim 1, further comprising a battery module (3), wherein the battery module (3) is disposed in a cavity formed by the cross beam (2) and the housing (1).

3. The power battery pack according to claim 2, wherein the cross beam (2) is a frame structure with a trapezoidal cross section; a second support member (22) and at least two first support members (21) are arranged in the cross beam (2), and the first support members (21) are parallel to the end face of the cross beam (2); the second supporting piece (22) and the first supporting piece (21) are arranged in an included angle mode and are not in contact with each other.

4. The power battery pack according to claim 3, wherein at least two of the first supports (21) have the same material and different thicknesses.

5. The power battery pack according to claim 1, wherein the housing (1) is square, and at least two of the cross beams (2) are parallel to each other and arranged along the width direction of the housing (1).

6. The power battery pack according to claim 5, wherein at least two of the cross beams (2) are evenly spaced.

7. The power battery pack according to claim 1, wherein the bracket (4) is a frame structure with a triangular cross section, and a third supporting member (31) and a fourth supporting member (32) which are perpendicular to each other and are connected end to end are arranged in the frame structure.

8. The power battery pack according to any one of claims 1 to 7, wherein the cross member (2) is further fixedly connected with a cross member structure of a seat of the automobile and a channel structure in the automobile, respectively.

9. The power battery pack according to claim 8, characterized in that a longitudinal beam (5) is further arranged in the housing, and the longitudinal beam (5) is arranged in the housing (1) perpendicular to and crosswise to the transverse beam (2).

10. An automobile, characterized in that the power battery pack according to any one of claims 1 to 9 is applied.