CN212725447U

CN212725447U - Upper shell and power battery pack

Info

Publication number: CN212725447U
Application number: CN202021244086.XU
Authority: CN
Inventors: 杨聪; 钱佳博; 赵立志; 王铄; 王海东
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-16
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to the technical field of vehicles, in particular to go up casing and power battery package. Go up the casing and include unevenness's upper cover, the convex part of upper cover includes first strengthening rib, first strengthening rib includes first main part and the first extension portion that sets up in pairs, first main part spanes the upper cover sets up, and is a pair of the first end of first extension portion sets up to certainly different positions department orientation with one side of first main part is kept away from the direction of first main part extends, and is a pair of the second end orientation of first extension portion extends each other. Go up the casing and set up the upper cover into unevenness's structure to the convex part at the upper cover is equipped with first strengthening rib, like this, under the prerequisite that does not influence the installation space of casing, is showing the bulk rigidity and the intensity that improve the casing through the concrete structure of rational design upper cover, thereby has improved the security performance of power battery package.

Description

Upper shell and power battery pack

Technical Field

The utility model relates to the technical field of vehicles, in particular to go up casing and power battery package.

Background

With the national vigorous popularization of new energy fields, electric vehicles have become the mainstream trend in the future. The power battery pack is used as a power supply component which is the most core of the whole vehicle, and determines key indexes of driving range, cost, service life, safety, maintainability and the like of the whole vehicle.

At present, the existing power battery pack comprises a module and a housing, the housing is provided with a cavity, and the module is packaged in the cavity to be protected by the housing, so that the protection requirement of the module is met. Wherein, the shell includes casing and the last casing of assembly on casing down, but, the top surface of going up the casing is planar structure usually, causes the casing to receive the collision easily and takes place deformation, can damage the module even, and the security performance is relatively poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an go up casing and power battery package to solve among the prior art power battery package and cause the safety problem of easy deformation because of going up the casing and being planar structure.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model discloses a first aspect provides an go up the casing, it includes unevenness's upper cover to go up the casing, the convex part of upper cover includes first strengthening rib, first strengthening rib includes first main part and the first extension that sets up in pairs, first main part spanes the upper cover sets up, and is a pair of first extension's first end sets up to certainly different positions department orientation with one side of first main part is kept away from the direction of first main part extends, and is a pair of first extension's second end orientation extends each other.

Optionally, the first extension portion is provided with an L-shaped structure.

Optionally, the first body portion is configured to extend in a width direction of the upper cover.

Optionally, the concave portion of the upper cover includes a second reinforcing rib, the second reinforcing rib includes a second main body portion and a second outer extension portion, the first main body portion is arranged in parallel with the second main body portion, and the second outer extension portion is arranged to extend from one side of the second main body portion to the outer edge of the upper cover.

Optionally, the convex portion of the upper cover includes a third rib disposed between the first rib and the second rib, and the third rib is parallel to the first main body portion and disposed across the upper cover.

Optionally, the convex portion of the upper cover includes a fourth reinforcing rib, the fourth reinforcing rib is disposed on a side of the first reinforcing rib away from the second reinforcing rib, and the fourth reinforcing rib extends in a direction perpendicular to the first main body portion.

Optionally, the convex portion of the upper cover includes a plurality of the fourth reinforcing ribs arranged side by side.

Optionally, the upper shell has a frame extending downward from an outer edge of the upper cover, and the frame has a fifth reinforcing rib protruding outward in a height direction.

Optionally, the outer edge of the upper cover has a plurality of arc corners and a plurality of straight sides extending in different directions, the arc corners are disposed between two adjacent straight sides and are bent toward the center of the upper cover, the frame includes a plurality of rounded corners and a plurality of straight plates, the straight plates extend downward from the straight sides, the fifth reinforcing rib is disposed on the straight plates, two adjacent straight plates are connected through the rounded corners, and the rounded corners are disposed obliquely outward from the arc corners of the upper cover and are bent toward the center of the upper cover.

The utility model discloses the second aspect provides a power battery package, power battery package includes lower casing.

Compared with the prior art, go up casing and power battery package have following advantage:

the upper cover of the upper shell is of an uneven structure, and the convex part of the upper cover is provided with the first reinforcing rib, so that the overall rigidity and strength of the upper shell are obviously improved by reasonably designing the specific structure of the upper cover on the premise of not influencing the installation space of the upper shell; when the upper cover receives external impact, a part of impact action can be outwards transmitted along the extending direction of the first main body part and the first extending part, so that the deformation of the upper cover is reduced, and the upper cover is prevented from damaging internal parts (such as modules) of the power battery pack due to large deformation, and the safety performance of the power battery pack is improved.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a top view of a power battery pack according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an upper housing of the power battery pack shown in fig. 1.

Description of reference numerals:

1. a first reinforcing rib; 2. a first main body portion; 3. a first extension portion; 4. a second reinforcing rib; 5. a second main body portion; 6. a second epitaxial portion; 7. a third reinforcing rib; 8. a fourth reinforcing rib; 9. a frame; 10. A rounded corner portion; 11. fifthly, strengthening the tendons; 12. flanging; 13. and (5) sealing rings.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

The utility model discloses a first aspect provides an go up casing, as shown in fig. 1 and 2, it includes unevenness's upper cover to go up the casing, the convex part of upper cover includes first strengthening rib 1, first strengthening rib 1 includes first main part 2 and the first extension 3 that sets up in pairs, first main part 2 spanes the upper cover sets up, and is a pair of first end of first extension 3 sets up to certainly different positions department orientation with one side of first main part 2 are kept away from the direction of first main part 2 is extended, and is a pair of the second end orientation of first extension 3 extends each other.

Through the technical scheme, the utility model provides an upper casing and power battery package, the upper casing sets up the upper cover into unevenness's structure to the convex part of upper cover is equipped with first strengthening rib 1, like this, under the prerequisite that does not influence the installation space of upper casing, through the concrete structure of reasonable design upper cover come showing the whole rigidity and the intensity that improves the upper casing, improved the mode of power battery package; when the upper cover receives external impact, a part of impact action can be transmitted outwards along the extending direction of the first main body part 2 and the first outer extending part 3, so that the deformation of the upper cover is reduced, and the upper cover is prevented from damaging internal parts (such as modules) of the power battery pack due to large deformation, thereby improving the safety performance of the power battery pack.

Further, for convenience of manufacturing and processing, the first extension portion 3 is provided with an L-shaped structure.

Further, first main part 2 sets up to follow the width direction of upper cover extends, under the prerequisite of the bulk strength and the rigidity of guaranteeing the upper cover, has shortened the processing length of first strengthening rib 1, still is favorable to the guide liquid to arrange away from the upper cover, has avoided phenomena such as ponding, hydrops to appear in the upper cover.

In order to further enhance the overall strength and rigidity of the upper cover, as shown in fig. 1, the concave portion of the upper cover includes a second reinforcing rib 4, the second reinforcing rib 4 includes a second main body portion 5 and a second extension portion 6, the first main body portion 2 is disposed parallel to the second main body portion 5, and the second extension portion 6 is disposed to extend from one side of the second main body portion 5 to the outer edge of the upper cover.

Through above-mentioned structure, the upper cover forms certain difference in height between first strengthening rib 1 and second strengthening rib 4, is favorable to satisfying the hydrophobic demand of last casing, has prevented that the vehicle from appearing casing ponding hydrops phenomenon under rainy day or other working conditions of wading, has optimized the corrosion resisting property of whole package. Specifically, when the liquid falls on the right side portion of the upper cover shown in fig. 1, which is located on the first bead 1, the liquid is discharged from the long side of the upper cover by the guiding action of the first body portion 2 of the first bead 1; when the liquid falls on the left portion of the upper cover shown in fig. 1, which is located on the first reinforcing bead 1, then: one part of liquid is discharged from the long side of the upper cover along the extending direction of the first reinforcing ribs 1, and the other part of liquid flows into the profile formed by the second reinforcing ribs 4 with lower positions and is discharged, so that liquid accumulation formed by the upper cover at the pair of first outer extension parts 3 of the first reinforcing ribs 1 is avoided, and the corrosion resistance of the upper cover is optimized.

In order to further enhance the overall strength and rigidity of the upper cover, the convex portion of the upper cover includes a third reinforcing rib 7 provided between the first reinforcing rib 1 and the second reinforcing rib 4, and the third reinforcing rib 7 is provided in parallel with the first body portion 2 and across the upper cover.

Further, the convex part of upper cover includes fourth strengthening rib 8, fourth strengthening rib 8 sets up keeping away from of first strengthening rib 1 one side of second strengthening rib 4, fourth strengthening rib 8 is along the perpendicular to the direction of first main part 2 extends, through setting up the fourth strengthening rib 8 different with the extending direction of first main part 2, is favorable to further strengthening the intensity of upper cover. Specifically, in view of the fact that the extending directions of the first, second, and third reinforcing

beads

1, 4, and 7 are more aligned with the width direction of the upper cover, in order to optimize the overall strength of the upper cover, the fourth reinforcing bead 8 is provided to extend in the length direction of the upper cover.

In order to further optimize the protection performance of the upper cover, the convex part of the upper cover comprises a plurality of fourth reinforcing ribs 8 arranged side by side, so that the overall strength and rigidity of the upper cover are enhanced.

It is worth mentioning that the upper shell is provided with a frame 9 formed by downwards extending from the outer edge of the upper cover, and the frame 9 is provided with a fifth reinforcing rib 11 protruding outwards in the height direction, so that the overall strength and rigidity of the frame 9 are enhanced, the occurrence of large deformation when the frame 9 is impacted by the outside is avoided, and the integrity and the non-damage of the internal module are protected.

Further, the outer edge of the upper cover has a plurality of arc corners and a plurality of straight sides extending in different directions, the arc corners are disposed between two adjacent straight sides and are bent toward the center of the upper cover, the frame 9 includes a plurality of rounded portions 10 and a plurality of straight portions, the straight portions extend downward from the straight sides, the fifth reinforcing rib 11 is disposed on the straight portions, two adjacent straight portions are connected by the rounded portions 10, and the rounded portions 10 are bent from the arc corners of the upper cover toward the center of the upper cover and are disposed obliquely outward. By the structure, the whole upper cover is manufactured in an integrated forming mode, and the production defects of the upper cover are reduced, so that the overall strength and rigidity of the upper cover are improved; for example, go up the casing and adopt panel beating stamping forming mode, through above-mentioned strengthening rib structure, be favorable to reducing the resilience phenomenon of last casing after panel beating stamping forming, the size precision of last casing after the shaping has been guaranteed, fillet 10 can also be alleviated and the casing appears in the fillet shaping difficulty because of the punching press is too deep in addition, tear or fold scheduling problem, the bulk strength of last casing after the shaping has been guaranteed, in addition, the casing can also bear higher internal pressure on the panel beating, the safety of power battery package after thermal runaway has been guaranteed. In addition, the bottom of the frame 9 has an outward turned flange 12 for fitting with the top of the upper housing; in order to ensure good air tightness of the whole power battery pack, the flanging 12 is hermetically assembled with the upper shell through the sealing ring 13.

The utility model discloses the second aspect still provides a power battery package, power battery package includes lower casing.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an upper casing, its characterized in that, upper casing includes unevenness's upper cover, the convex part of upper cover includes first strengthening rib (1), first strengthening rib (1) includes first main part (2) and first extension portion (3) that set up in pairs, first main part (2) span the upper cover sets up, and is a pair of the first end of first extension portion (3) sets up to certainly different positions department orientation with the same side of first main part (2) are kept away from the direction of first main part (2) extends, and is a pair of the second end orientation of first extension portion (3) extends each other.

2. Upper housing according to claim 1, wherein the first outer extension (3) is provided as an L-shaped structure.

3. The upper case according to claim 1, wherein the first main body portion (2) is provided to extend in a width direction of the upper cover.

4. The upper case according to claim 1, wherein the recess of the upper cover comprises a second reinforcing rib (4), the second reinforcing rib (4) comprises a second main body portion (5) and a second extension portion (6), the first main body portion (2) is arranged in parallel with the second main body portion (5), and the second extension portion (6) is arranged to extend from one side of the second main body portion (5) to an outer edge of the upper cover.

5. The upper case according to claim 4, wherein the convex portion of the upper cover includes a third bead (7) disposed between the first bead (1) and the second bead (4), the third bead (7) being parallel to the first body portion (2) and disposed across the upper cover.

6. The upper case according to claim 4, wherein the convex portion of the upper cover includes a fourth reinforcing rib (8), the fourth reinforcing rib (8) being provided on a side of the first reinforcing rib (1) remote from the second reinforcing rib (4), the fourth reinforcing rib (8) extending in a direction perpendicular to the first main body portion (2).

7. The upper shell according to claim 6, wherein the convex portion of the upper cover comprises a plurality of said fourth reinforcing ribs (8) arranged side by side.

8. The upper shell according to any one of claims 1 to 7, wherein the upper shell has a rim (9) extending downward from an outer edge of the upper cover, and the rim (9) has a fifth reinforcing rib (11) protruding outward in a height direction.

9. The upper shell according to claim 8, wherein the outer edge of the upper cover has a plurality of arc corners and a plurality of straight sides extending in different directions, the arc corners are disposed between two adjacent straight sides and are bent toward the center of the upper cover, the frame (9) includes a plurality of rounded portions (10) and a plurality of straight portions, the straight portions extend downward from the straight sides, the fifth reinforcing rib (11) is disposed on the straight portions, two adjacent straight portions are connected by the rounded portions (10), and the rounded portions (10) are bent from the arc corners of the upper cover in a direction toward the center of the upper cover and are disposed obliquely outward.

10. A power battery pack, characterized in that the power battery pack comprises an upper housing according to any one of claims 1-9.