CN215816127U

CN215816127U - Power battery pack with drainage function and vehicle with power battery pack

Info

Publication number: CN215816127U
Application number: CN202121709790.2U
Authority: CN
Inventors: 韦仲宁; 李雪青; 何建松
Original assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Current assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-02-11
Anticipated expiration: 2031-07-26

Abstract

The utility model provides a take power battery package of drainage function, includes battery package epitheca, battery package inferior valve and locates the battery package epitheca with electric core and carry the sleeve between the battery package inferior valve, be equipped with on the power battery package and run through the battery package epitheca the battery package inferior valve and carry telescopic fixed orifices, be equipped with on the carry sleeve with the fixed orifices intercommunication just runs through carry telescopic water drainage tank. According to the utility model, the drainage groove is formed in the mounting sleeve, so that accumulated water above the power battery pack can be drained timely, potential safety hazards caused by accumulated water above the power battery pack can be eliminated, and the maintenance experience of a user can be improved.

Description

Power battery pack with drainage function and vehicle with power battery pack

Technical Field

The utility model relates to the field of automobiles, in particular to a power battery pack with a water drainage function and a vehicle with the power battery pack.

Background

In order to meet the requirement of the user on the cruising mileage and be limited by the overall layout of the automobile, a power battery pack of the electric automobile is generally hung below a floor below a seat, the power battery pack is heavier, generally about 400kg, and cannot achieve a good fixing effect only by connecting two sides of the power battery pack to a body-in-white longitudinal beam, so that the power battery pack needs a middle hanging point to increase the fixing strength of the power battery pack and the floor. However, because the area of the upper shell of the battery pack is large, after the power battery pack is fixed on a floor, the upper shell of the power battery pack can be corroded due to water accumulation of an automobile, the water accumulation can penetrate through the shell to enter the power battery pack after long-term use, the safety performance of the power battery pack is affected, and in addition, when the power battery pack is detached or replaced, the water accumulation can flow down along the power battery pack to affect the maintenance feeling of a user.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a power battery pack with a drainage function and a vehicle with the power battery pack, and the power battery pack can drain accumulated water on the top of the power battery pack in time through the arrangement of a drainage groove, so that the problems of safety and poor maintenance feeling caused by the accumulated water on the top of the power battery pack are effectively avoided.

The embodiment of the utility model provides a power battery pack with a drainage function, which comprises a battery pack upper shell, a battery pack lower shell, a battery core and a mounting sleeve, wherein the battery core and the mounting sleeve are arranged between the battery pack upper shell and the battery pack lower shell, the power battery pack is provided with a fixing hole penetrating through the battery pack upper shell, the battery pack lower shell and the mounting sleeve, and the mounting sleeve is provided with a drainage groove communicated with the fixing hole and penetrating through the mounting sleeve.

According to an embodiment of the utility model, the fixing hole and the drain groove extend in an axial direction of the mount sleeve.

According to one embodiment of the utility model, the diameter of the end of the mounting sleeve adjacent to the vehicle body is larger than the diameter of the end of the mounting sleeve remote from the vehicle body.

According to an embodiment of the present invention, the height of the mounting sleeve is smaller than the height of the battery core near the mounting sleeve, a positioning recess is formed at the battery core near the mounting sleeve, the position of the battery pack upper case corresponding to the mounting sleeve is recessed downward, a positioning protrusion is formed on the surface facing the mounting sleeve, and the positioning protrusion is located in the positioning recess when the battery pack upper case is mounted.

According to one embodiment of the utility model, the lower end of the mounting sleeve is welded to the lower battery pack shell, and the upper end of the mounting sleeve abuts against the positioning protrusion.

According to one embodiment of the utility model, the vehicle body floor is provided with a mounting hole corresponding to the fixing hole, and the power battery pack is fixed on the vehicle body floor through a fixing piece penetrating through the fixing hole and the mounting hole.

According to one embodiment of the utility model, the mounting seat is welded on the vehicle body floor, the mounting hole is a threaded hole formed in the mounting seat, and the fixing piece is used for fixing the power battery pack to the vehicle body floor through matching with the threaded hole.

According to one embodiment of the present invention, the middle portion of the mounting seat is provided with an upward flange, and the screw hole is formed in an inner surface of the flange.

According to one embodiment of the utility model, the outer edge of the mounting seat is provided with a flash, which abuts against the outer edge of the mounting seat.

According to one embodiment of the utility model, a boss formed by stamping is arranged on a vehicle body floor, a fixing frame for fixing the power battery pack is welded at the position of the boss, and the mounting seat is welded on the fixing frame.

The embodiment of the utility model also provides a vehicle, and the power battery pack with the water drainage function is arranged at the bottom of the vehicle body of the vehicle.

According to the utility model, by optimizing the structure of the mounting sleeve in the power battery pack and arranging the drainage grooves in the mounting sleeve, accumulated water above the power battery pack can be drained timely, potential safety hazards caused by accumulated water above the power battery pack can be eliminated, and the maintenance feeling of a user can be improved.

Drawings

Fig. 1 is a schematic view of an assembled state of a power battery pack with a drainage function provided by the utility model on a vehicle body floor.

FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. 1.

Fig. 3 is a schematic perspective view of the mounting sleeve of the present invention.

10-power battery pack, 11-battery pack upper shell, 111-positioning protrusion, 12-battery pack lower shell, 13-battery core, 131-positioning recess, 14-mounting sleeve, 141-shaft hole, 142-drainage groove, 143-support table, 15-fixing hole, 20-fixing piece, 30-vehicle body floor, 31-boss, 32-fixing frame, 321-mounting seat, 322-flange, 323-mounting hole and 324-flash.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1 and 2, the power battery pack 10 with a drainage function of the present invention includes a battery pack upper shell 11, a battery pack lower shell 12, and a battery core 13 and a mounting sleeve 14 disposed between the battery pack upper shell 11 and the battery pack lower shell 12. The power battery pack 10 is provided with a fixing hole 15 penetrating through the battery pack upper shell 11, the mounting sleeve 14 and the battery pack lower shell 12 from top to bottom, the vehicle body floor 30 is provided with a mounting hole 323 corresponding to the fixing hole 15, and the power battery pack 10 is fixed below the vehicle body floor 30 through a fixing piece 20 penetrating through the fixing hole 15 and the mounting hole 323. The mounting sleeve 14 is provided with a drainage groove 142 which is communicated with the fixing hole 15 and penetrates through the mounting sleeve 14, and accumulated water above the battery pack upper shell 11 can be drained through the drainage groove 142.

In the present invention, a plurality of battery cells 13 are disposed between the battery pack upper case 11 and the battery pack lower case 12, and the battery cells 13 may be circular, rectangular, etc. and are arranged between the battery pack upper case 11 and the battery pack lower case 12 in an array manner. The mounting sleeve 14 is disposed between some of the battery cells 13, and has a lower end fixed to the battery pack lower case 12 by welding or the like, and an upper end abutting against the battery pack upper case 11. The shape of the battery cell 13 near the mounting sleeve 14 is designed according to the shape of the mounting sleeve 14, so that the shape of the battery cell 13 is just matched with the shape of the mounting sleeve 14, and the arrangement of the mounting sleeve 14 does not affect the overall shape of the power battery pack 10 and the arrangement of the battery cells 13 therein.

Referring to fig. 3, the middle portion of the mounting sleeve 14 is provided with a shaft hole 141 axially penetrating through the mounting sleeve 14, and the battery pack upper case 11 and the battery pack lower case 12 are provided with through holes corresponding to the shaft hole 141, the through holes being aligned with the shaft hole 141 of the mounting sleeve 14 up and down to form a fixing hole 15 penetrating through the battery pack upper case 11, the mounting sleeve 14 and the battery pack lower case 12. The wall of the shaft hole 141 of the mounting sleeve 14 is provided with a drain groove 142 which communicates with the shaft hole 141 and axially penetrates the mounting sleeve 14. In this embodiment, the drainage channel 142 is a groove formed in the wall of the shaft hole 141 and recessed radially outward, and the depth of the groove in the radial direction of the mounting sleeve 14 is 3-5 mm, so that the drainage effect is ensured, the drainage channel 142 is not easily blocked by muddy water, and the structural strength of the mounting sleeve 14 is not affected. In order to make the drainage smooth, the size of the through holes formed on the upper battery pack case 11 and the lower battery pack case 12 should be slightly larger than the size of the shaft hole 141 of the mounting sleeve 14, so that the accumulated water can enter and drain out of the shaft hole 141 of the mounting sleeve 14. In the present embodiment, the number of the drain grooves 142 is two, which are respectively located at two opposite sides of the shaft hole 141 in the radial direction, and it is understood that the present invention is not limited to the number of the drain grooves 142, and may be one or more. In the embodiment where the drain grooves 142 are plural, the drain grooves 142 are preferably uniformly distributed along the circumferential direction of the shaft hole 141. It should be noted that the inner and outer surfaces of the mounting sleeve 14 are treated by the same process, including but not limited to zinc plating, nickel plating, dacromet, etc., so that the inner and outer surfaces of the mounting sleeve 14 have excellent corrosion resistance.

Further, in the present invention, the diameter of the end of the mounting sleeve 14 adjacent to the vehicle body is larger than the diameter of the end of the mounting sleeve 14 away from the vehicle body, and a cylindrical support 143 is formed at the upper part of the mounting sleeve 14. The height of the mounting sleeve 14 is smaller than the height of the battery cell 13 near the mounting sleeve 14, a positioning recess 131 is formed at the battery cell 13 near the mounting sleeve 14, correspondingly, the position of the battery pack upper case 11 corresponding to the mounting sleeve 14 is recessed downward, a positioning protrusion 111 is formed on the surface facing the mounting sleeve 14, the dimensions of the positioning protrusion 111 and the positioning recess 131 are substantially the same as those of the supporting table 143, when the battery pack upper case 11 is mounted, the positioning protrusion 111 is located in the positioning recess 131, a good positioning effect is achieved for mounting the battery pack upper case 11, and after the battery pack upper case 11 is mounted, the positioning protrusion 111 abuts against the supporting table 143, so that the contact area between the mounting sleeve 14 and the battery pack upper case 11 can be increased.

With reference to fig. 1 and fig. 2, a boss 31 formed by downward stamping is disposed on the vehicle body floor 30 corresponding to the mounting sleeve 14, in addition, a fixing frame 32 for fixing the power battery pack 10 is welded at the position of the boss 31, and the connection strength between the vehicle body floor 30 and the power battery pack 10 can be increased by the stamped boss 31 and the additionally added fixing frame 32.

Further, the mounting seat 321 is fixed on the fixing frame 32 by welding, the shape of the mounting seat 321 may be circular, rectangular, hexagonal, etc., and the size of the mounting seat 321 is substantially the same as the size of the positioning protrusion 111 of the battery pack upper case 11, and when the shape of the mounting seat 321 is non-circular, the meaning that the size of the mounting seat 321 is substantially the same as the size of the positioning protrusion 111 of the battery pack upper case 11 means that the axial projection of the positioning protrusion 111 is tangent to at least one side of the axial projection of the mounting seat 321, and preferably, the axial projection of the positioning protrusion 111 is an inscribed circle of the axial projection of the mounting seat 321. The middle portion of the mounting seat 321 is provided with an upward flange 322, and the inner surface of the flange 322 forms the mounting hole 323. In the present embodiment, the mounting holes 323 are preferably screw holes to facilitate fixing the power battery pack 10 to the underside of the vehicle body floor 30 by fasteners 20 such as bolts. Furthermore, the fixing frame 32 is provided with a flange 324 at the outer edge of the mounting seat 321, and in the embodiment where the mounting seat 321 is non-circular, the flange 324 abuts against the outer edge of the mounting seat 321, so that the mounting seat 321 can be prevented from rotating when welding is loosened, and the connection stability between the vehicle body floor 30 and the power battery pack 10 can be further ensured.

In conclusion, the structure of the mounting sleeve in the power battery pack is optimized, and the drainage grooves are formed in the shaft holes of the mounting sleeve, so that accumulated water above the power battery pack can be drained timely, potential safety hazards caused by the accumulated water above the power battery pack can be eliminated, and the maintenance experience of a user can be improved.

In addition, the embodiment of the utility model also provides a vehicle, and the power battery pack with the water drainage function is arranged at the bottom of the vehicle body of the vehicle.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a take power battery package of drainage function, its characterized in that, power battery package (10) include battery package epitheca (11), battery package inferior valve (12) and locate battery package epitheca (11) with electric core (13) and carry sleeve (14) between battery package inferior valve (12), be equipped with on power battery package (10) and run through battery package epitheca (11), battery package inferior valve (12) and fixed orifices (15) of carry sleeve (14), be equipped with on carry sleeve (14) with fixed orifices (15) intercommunication just runs through the water drainage tank (142) of carry sleeve (14).

2. The power battery pack with a drain function according to claim 1, wherein the fixing hole (15) and the drain groove (142) extend in an axial direction of the mounting sleeve (14).

3. The power battery pack with the water drainage function according to claim 1, wherein the diameter of the end, close to the vehicle body, of the mounting sleeve (14) is larger than the diameter of the end, far away from the vehicle body, of the mounting sleeve (14).

4. The power battery pack with the water drainage function according to claim 1, wherein the height of the mounting sleeve (14) is smaller than the height of the battery cell (13) near the mounting sleeve (14), a positioning recess (131) is formed at the battery cell (13) near the mounting sleeve (14), the battery pack upper case (11) is recessed downward corresponding to the position of the mounting sleeve (14), a positioning protrusion (111) is formed on the surface facing the mounting sleeve (14), and the positioning protrusion (111) is located in the positioning recess (131) when the battery pack upper case (11) is mounted.

5. The power battery pack with the water drainage function according to claim 4, wherein the lower end of the mounting sleeve (14) is welded to the battery pack lower case (12), and the upper end of the mounting sleeve (14) abuts against the positioning protrusion (111).

6. The power battery pack with the drain function according to claim 1, wherein a mounting hole (323) is provided on the vehicle body floor (30) corresponding to the fixing hole (15), and the power battery pack (10) is fixed to the vehicle body floor (30) by a fixing member (20) penetrating the fixing hole (15) and the mounting hole (323).

7. The power battery pack with the water drainage function according to claim 6, wherein the mounting seat (321) is welded on the vehicle body floor (30), the mounting hole (323) is a threaded hole formed in the mounting seat (321), and the fixing member (20) fixes the power battery pack (10) to the vehicle body floor (30) through matching with the threaded hole.

8. The power battery pack with the drain function according to claim 7, wherein the mounting seat (321) is provided at a middle portion thereof with an upward flange (322), and the threaded hole is formed at an inner surface of the flange (322).

9. The power battery pack with the water drainage function as claimed in claim 8, wherein a flange (324) is arranged on the outer edge of the mounting seat (321), and the flange (324) abuts against the outer edge of the mounting seat (321).

10. The power battery pack with the water drainage function according to claim 7, wherein a boss (31) formed by stamping is arranged on the vehicle body floor (30), a fixing frame (32) for fixing the power battery pack is welded at the position of the boss (31), and the mounting seat (321) is welded on the fixing frame (32).

11. A vehicle, characterized in that the underbody of the vehicle is provided with the drainage-equipped power battery pack according to any one of claims 1 to 10.