CN211507709U

CN211507709U - Battery box

Info

Publication number: CN211507709U
Application number: CN201922502741.0U
Authority: CN
Inventors: 刘军超
Original assignee: Weihai Xingchi New Energy Technology Co ltd
Current assignee: Weihai Xingchi New Energy Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-15
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a battery box, box and case lid including the cuboid, the box includes bottom plate and 2 long curb plates and 2 short curb plates of perpendicular to bottom plate respectively, be equipped with banding long fixed block and short fixed block on the bottom plate, long fixed block is parallel with long curb plate, and short fixed block is parallel with short curb plate, keeps away from short curb plate of short fixed block, keeps away from long curb plate, short fixed block and the long fixed block of long fixed block and encloses the regional backup pad that is equipped with the parallel to the bottom plate, interval between backup pad and the bottom plate is less than the height of long fixed block and short fixed block. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, the installation of battery in the battery box is more stable, the configuration optimization of battery box, rationally distributed group battery and battery management system.

Description

Battery box

Technical Field

The utility model relates to the technical field of batteries, specific be a battery box for holding and fixed lithium cell.

Background

The battery pack is an energy source for electric vehicles and various electric devices, and two main components of the battery pack are a battery core and a battery management system. Traditional battery electric core is fixed through simple and easy frame, and is packaged into an organic whole with the battery package. Because the application object of the battery pack is mainly a battery module on an electric automobile or engineering machinery, the working environment of the battery pack is mostly complex or severe, especially vibration, and therefore the fixing effect of the battery cell in the battery box directly influences the failure rate and the service life of the battery pack. The fixation is not good, the connection between the battery connecting piece and the battery electrode is unstable, sparks are easy to generate, and potential safety hazards exist. In addition, the battery pack is a whole package, a battery management system and an external interface are required to be arranged in the battery pack, and the optimization of the structure of the battery pack is also an important index for reflecting the performance of the battery pack

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, configuration optimization's battery box is particularly suitable for on-vehicle lithium cell and battery management system's integration.

The technical scheme of the utility model is that:

the utility model provides a battery box, includes the box and the case lid of cuboid, the box includes bottom plate and 2 long curb plates and 2 short curb plates of perpendicular to bottom plate respectively, be equipped with banding long fixed block and short fixed block on the bottom plate, long fixed block is parallel with long curb plate, and short fixed block is parallel with short curb plate, keeps away from the short curb plate of short fixed block, keeps away from the long curb plate of long fixed block, is equipped with the backup pad that is on a parallel with the bottom plate in the region that short fixed block and long fixed block enclose, interval between backup pad and the bottom plate is less than the height of long fixed block and short fixed block.

The long fixing block and the short fixing block are formed by hollow square tubes and are fixedly connected with the bottom plate. Keep away from the short curb plate of short fixed block, keep away from long curb plate, short fixed block and the long fixed block of long fixed block and enclose into the battery and place the region, the utility model discloses a how stable the fixing of aim at battery is in this region, and the reduction is rocked and is strikeed.

The battery pack is characterized in that a square battery pack is formed after the batteries are combined, the bottom surface of the battery pack falls on the supporting plate, the long fixing block and the short fixing block are higher than the supporting plate, and the long fixing block and the short fixing block limit the battery pack at the base of the battery pack. In the traditional fixing mode, the baffle is directly contacted with the bottom plate, the baffle is a sheet-shaped thin plate and has certain elasticity, and the clamping position of the baffle on the base of the battery pack is far less stable than the clamping position of the fixing block on the base of the battery pack.

The backup pad forms the isolation between group battery and box bottom plate, prevents to bump hard striking between group battery bottom and the box bottom plate, simultaneously, has also played insulating effect. In addition, once the bottom plate of the box body is abraded, the bottom of the battery pack cannot be directly contacted with the outside.

Still be equipped with L shape first baffle and second baffle in the box, first baffle includes mutually perpendicular's short face and long face, and the short face is fixed with the up end bolt of long fixed block, the second baffle includes mutually perpendicular's short face and long face, and the short face is fixed with the up end bolt of short fixed block.

The long surface of the baffle plate limits the battery pack at the middle part and the upper part of the battery pack.

And a pull rod is arranged between the long surface of the first baffle and the long side surface far away from the first baffle. One end of the pull rod is fixed on the long side plate through a bolt, and the other end of the pull rod is fixed on the long surface of the first baffle plate, so that the battery pack is stably fixed in the box body from top to bottom.

The short fixed block is located 4/5 of box length direction, and the battery management system's that leaves the place area between the short lateral plate that is close to short fixed block and the short fixed block.

The one side that the backup pad was kept away from to the long face of second baffle is equipped with the mounting panel, be equipped with the through-hole on the short curb plate that the mounting panel corresponds. The through hole is used for installing an interface between the battery management system and the outside.

The mounting plate provides a fixation point for the battery management system.

And damping gaskets are arranged on one sides of the long surfaces of the first baffle and the second baffle, which are close to the supporting plate.

Preferably, a vibration damping gasket is also arranged between the support plate and the battery pack.

Preferably, the long side plate and the short side plate adjacent to the battery pack and the battery pack have heretofore been provided with vibration-damping gaskets.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the installation of the batteries in the battery box is more stable, the structure of the battery box is optimized, and the battery pack and the battery management system are reasonably distributed.

Drawings

FIG. 1 is a left side view of the present invention

FIG. 2 is a schematic view of the structure of the opening of the box body

FIG. 3 is a top view of the opening of the box body

FIG. 4 is a cross-sectional view along the short side plate

FIG. 5 is a cross-sectional view along the long side plate of the present invention

In the figure:

1. case body 2, case cover 11 and bottom plate

12. Long side plate 13, short side plate 14, support plate

15. First baffle 16, second baffle 17, pull rod

18. Through hole 111, long fixing block 112 and short fixing block

161. Mounting plate

Detailed Description

The working process of the example is as follows:

as shown in fig. 1, 2, 4, and 5, a battery box includes a rectangular box body 1 and a box cover 2, where the box body 1 includes a

bottom plate

11 and 2

long side plates

12 and 2 short side plates 13 perpendicular to the bottom plate 11, a strip-shaped long fixing block 111 and a strip-shaped short fixing block 112 are disposed on the bottom plate 11, the long fixing block 111 is parallel to the long side plate 12, the short fixing block 112 is parallel to the short side plate 13, a support plate 14 parallel to the bottom plate 11 is disposed in an area surrounded by the short side plate 13 far away from the short fixing block 112, the long side plate 12 far away from the long fixing block 111, the short fixing block 112, and the long fixing block 111, and a distance between the support plate 14 and the bottom plate 11 is smaller than heights of the long fixing block 111 and.

The long fixing block 111 and the short fixing block 112 are formed of hollow square pipes, and the long fixing block 111 and the short fixing block 112 are fixedly connected with the bottom plate 11. Keep away from short curb plate 13 of short fixed block 112, keep away from long curb plate 12 of long fixed block 111, short fixed block 112 and long fixed block 111 and enclose into the battery and place the region, the utility model discloses a how stable the fixing in this region of aim at battery reduces and rocks and the striking.

As shown in fig. 2, 4 and 5, a plurality of batteries are combined to form a square battery pack, the bottom surface of the battery pack is placed on the support plate 14, the long fixing blocks 111 and the short fixing blocks 112 are higher than the support plate 14, and the long fixing blocks 111 and the short fixing blocks 112 limit the battery pack at the base of the battery pack. In the traditional fixing mode, the baffle is directly contacted with the bottom plate 11, and the baffle is a sheet-shaped thin plate which has certain elasticity and is far less stable in clamping the base of the battery pack than the fixing block.

The support plate 14 provides isolation between the battery pack and the base plate 11 to prevent hard-to-hard impact between the bottom of the battery pack and the base plate 11, and also provides insulation. In addition, once the bottom plate 11 of the case is worn, the bottom of the battery pack is not in direct contact with the outside.

Still be equipped with L shape first baffle 15 and second baffle 16 in the box 1, first baffle 15 includes mutually perpendicular's short face and long face, and short face and the up end bolt fastening of long fixed block 111, second baffle 16 includes mutually perpendicular's short face and long face, and short face and the up end bolt fastening of short fixed block 112.

As shown in fig. 2 and 3, a pull rod 17 is disposed between the long surface of the first baffle 15 and the long side surface far away from the first baffle 15. One end of the pull rod 17 is fixed on the long side plate 12 through a bolt, and the other end of the pull rod 17 is fixed on the long surface of the first baffle plate 15, so that the battery pack is stably fixed in the box body from top to bottom.

The short fixing block 112 is located at 4/5 in the length direction of the box body 1, and a placement area of the battery management system is left between the short fixing block 112 and the short side plate 13 close to the short fixing block 112.

The long surface of the second baffle 16 is provided with a mounting plate 161 on the side far away from the support plate 14, and the short side plate 13 corresponding to the mounting plate 161 is provided with a through hole 18. The through-hole 18 is used to mount an interface of the battery management system with the outside.

Mounting plate 161 provides a fixed location for the battery management system.

The long surfaces of the first baffle 15 and the second baffle 16 are provided with damping gaskets on one side close to the support plate 14.

Preferably, a vibration damping spacer is also provided between the support plate 14 and the battery pack.

Preferably, the long side plates 12 and the short side plates 13 adjacent to the battery pack and the battery pack have heretofore been provided with vibration-damping gaskets.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a battery box, includes the box and the case lid of cuboid, its characterized in that: the box includes the bottom plate and 2 long curb plates and 2 short curb plates of perpendicular to bottom plate respectively, be equipped with banding long fixed block and short fixed block on the bottom plate, long fixed block is parallel with long curb plate, and short fixed block is parallel with short curb plate, keeps away from short curb plate of short fixed block, keeps away from long curb plate of long fixed block, is equipped with the backup pad that is on a parallel with the bottom plate in the region that long fixed block and long fixed block enclose, the interval between backup pad and the bottom plate is less than the height of long fixed block and short fixed block.

2. The battery box according to claim 1, characterized in that: still be equipped with L shape first baffle and second baffle in the box, first baffle includes mutually perpendicular's short face and long face, and the short face is fixed with the up end bolt of long fixed block, the second baffle includes mutually perpendicular's short face and long face, and the short face is fixed with the up end bolt of short fixed block.

3. The battery box according to claim 2, characterized in that: and a pull rod is arranged between the long surface of the first baffle and the long side surface far away from the first baffle.

4. The battery box according to claim 3, characterized in that: the one side that the backup pad was kept away from to the long face of second baffle is equipped with the mounting panel, be equipped with the through-hole on the short curb plate that the mounting panel corresponds.

5. The battery box according to claim 4, characterized in that: and damping gaskets are arranged on one sides of the long surfaces of the first baffle and the second baffle, which are close to the supporting plate.