CN219626767U

CN219626767U - Battery box cover capable of preventing connecting sheet from bending and shorting

Info

Publication number: CN219626767U
Application number: CN202320421751.5U
Authority: CN
Inventors: 王媛; 刘应春; 詹新举
Original assignee: Wuhu Etc Battery Ltd
Current assignee: Wuhu Etc Battery Ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-09-01
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses a battery case cover capable of preventing a connecting sheet from bending and shorting, which relates to the technical field of power batteries and comprises an upper cover plate and a lower cover plate, wherein pole pieces and gaskets are respectively arranged on two sides of the lower end of the lower cover plate, a plurality of mounting holes are respectively formed in the gaskets and the lower cover plate in a communicating manner, the connecting sheet is welded on the pole pieces, one end of the connecting sheet is provided with a through hole, a double-end buckle is arranged in the mounting hole, and the bottom end of the double-end buckle is arranged in the through hole and is abutted against the gaskets. According to the utility model, one end of the connecting piece is clamped on the gasket through the double-end buckle, and the other end of the connecting piece is welded on the pole piece, so that the connecting piece is stably installed without bending risk, and meanwhile, the requirements of different connecting piece lengths are met by adjusting the positions of the double-end buckle in the installing holes.

Description

Battery box cover capable of preventing connecting sheet from bending and shorting

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery box cover capable of preventing a connecting sheet from being bent and shorted.

Background

At present, in trial production and mass production of power battery cells, the problem of short circuit in the cells can be caused by bending of long suspension connecting sheets, and the rejection rate caused by short circuit is high. The loss of the delivered battery cell caused by the safety risk caused by the short circuit is immeasurable, so that the reduction and the avoidance of the risk of the short circuit in the battery cell are an extremely important task for the structural design of the battery cell. Accordingly, there is a need for a battery case cover that prevents bending shorts of the tabs to solve the above-described problems.

Disclosure of Invention

The utility model aims to provide a battery box cover for preventing bending and short-circuiting of a connecting sheet, so as to solve the defects caused by the prior art.

The utility model provides a prevent battery case lid of connection piece buckling short circuit, includes upper cover plate and lower apron, pole piece and gasket are installed respectively to the lower extreme both sides of lower apron, the gasket all is equipped with the intercommunication on the lower apron and has a plurality of mounting hole, the welding has the connection piece on the pole piece, the one end of connection piece is equipped with the through-hole, install double-end buckle in the mounting hole, the bottom of double-end buckle is installed in the through-hole and is connected the connection piece butt on the gasket.

Preferably, the lower cover plate is provided with an explosion-proof groove, the upper cover plate is provided with an explosion-proof hole, the explosion-proof groove is inserted in the explosion-proof hole, and the upper end of the explosion-proof groove is welded with an explosion-proof valve.

Preferably, the bottom side of the upper cover plate is provided with a plurality of buckles, the lower cover plate is provided with holes with the same number as the buckles, and the buckles are arranged in the holes to connect the upper cover plate and the lower cover plate together.

Preferably, the lower cover plate is provided with a liquid injection hole, and the liquid injection hole is provided with a sealant nail.

Preferably, the upper end of the lower cover plate is provided with symmetrical mounting grooves, electrode rivets are mounted in the mounting grooves, the bottom sides of the electrode rivets are welded on the pole pieces, the upper end of the upper cover plate is provided with symmetrical electrode pressing plates, and the upper ends of the electrode rivets are welded on the electrode pressing plates on the same side.

The utility model has the advantages that: according to the utility model, one end of the connecting piece is clamped on the gasket through the double-end buckle, and the other end of the connecting piece is welded on the pole piece, so that the connecting piece is stably installed without bending risk, and meanwhile, the requirements of different connecting piece lengths are met by adjusting the positions of the double-end buckle in the installing holes.

Drawings

Fig. 1 and fig. 2 are schematic structural views of the present utility model at different overall angles.

Fig. 3 is a schematic view of the structure of the assembly of the present utility model.

Wherein: 1-an upper cover plate; 2-a lower cover plate; 3-pole pieces; 4-a gasket; 5-mounting holes; 6-connecting sheets; 7-through holes; 8-double-ended buckle; 9-an explosion-proof tank; 10-explosion-proof holes; 11-explosion-proof valve; 12-cramps; 13-holes; 14-filling holes; 15-sealing glue nails; 16-mounting slots; 17-electrode rivets; 18-electrode press plate.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1 to 3, a battery case cover capable of preventing a connecting piece from being bent and shorted comprises an upper cover plate 1 and a lower cover plate 2, wherein a pole piece 3 and a gasket 4 are respectively arranged on two sides of the lower end of the lower cover plate 2, a plurality of mounting holes 5 are respectively formed in the gasket 4 and the lower cover plate 2 in a communicating manner, a connecting piece 6 is welded on the pole piece 3, a through hole 7 is formed in one end of the connecting piece 6, a double-end buckle 8 is arranged in the mounting hole 5, and the bottom end of the double-end buckle 8 is arranged in the through hole 7 and is abutted to the connecting piece 6 on the gasket 4.

In this embodiment, an explosion-proof groove 9 is formed in the lower cover plate 2, an explosion-proof hole 10 is formed in the upper cover plate 1, the explosion-proof groove 9 is inserted into the explosion-proof hole 10, and an explosion-proof valve 11 is welded to the upper end of the explosion-proof groove 9.

In this embodiment, the bottom side of the upper cover plate 1 is provided with a plurality of studs 12, the lower cover plate 2 is provided with holes 13 equal to the studs 12 in number, and the studs 12 are installed in the holes 13 to connect the upper cover plate 1 and the lower cover plate 2 together.

In this embodiment, the lower cover plate 2 is provided with a liquid injection hole 14, and a sealant nail 15 is installed on the liquid injection hole 14. The bottom side of lower apron 2 has welded the aluminium shell case, install the book core in the aluminium shell case, through annotate liquid hole 14 to aluminium shell incasement injection electrolyte to form the return circuit through electrolyte and the positive negative pole of book core and be used for storing and output electric power, sealed glue nail 15 is used for sealing annotating liquid hole 14, avoids electrolyte to spill from the aluminium shell incasement.

In this embodiment, the upper end of the lower cover plate 2 is provided with a symmetrical mounting groove 16, an electrode rivet 17 is mounted in the mounting groove 16, the bottom side of the electrode rivet 17 is welded on the pole piece 3, the upper end of the upper cover plate 1 is provided with a symmetrical electrode pressing plate 18, and the upper ends of the electrode rivets 17 are welded on the electrode pressing plates 18 on the same side.

The working principle of the utility model is as follows: the position of the through hole 7 communicated with the mounting hole 5 is adjusted, one end of the connecting sheet 6 is abutted against the lower end of the pole piece 3, then the connecting sheet 6 is fixed in the mounting hole 5 and the through hole 7 through the double-head buckle 8 and welded with the pole piece 3, then the electrode rivet 17 is mounted in the mounting groove 16 and the electrode rivet 17 is welded on the connecting sheet 6, the upper cover plate 1 is inserted into the hole 13 through the cramp 12, so that the upper cover plate 1 and the lower cover plate 2 are clamped together, the explosion-proof groove 9 is inserted into the explosion-proof hole 10, the explosion-proof valve 11 is welded at the upper end of the explosion-proof groove 9, and the electrode pressing plate 18 is welded at the upper end of the electrode rivet 17.

According to the utility model, one end of the connecting piece 6 is clamped on the gasket 4 through the double-end buckle 8, and the other end of the connecting piece 6 is welded on the pole piece 3, so that the connecting piece 6 is stably installed without bending risk, and meanwhile, the requirements of different connecting pieces 6 in length are met by adjusting the positions of the double-end buckle 8 in the mounting holes 5.

It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.

Claims

1. A prevent that connection piece from buckling battery case lid of short circuit which characterized in that: including upper cover plate (1) and lower apron (2), pole piece (3) and gasket (4) are installed respectively to lower extreme both sides of lower apron (2), all be equipped with on gasket (4) and the lower apron (2) and communicate there are a plurality of mounting hole (5), the welding has connection piece (6) on pole piece (3), the one end of connection piece (6) is equipped with through-hole (7), install double-end buckle (8) in mounting hole (5), the bottom of double-end buckle (8) is installed in through-hole (7) and is connected connection piece (6) butt on gasket (4).

2. The battery case cover for preventing bending short circuit of connecting sheet according to claim 1, wherein: the anti-explosion device is characterized in that an anti-explosion groove (9) is formed in the lower cover plate (2), an anti-explosion hole (10) is formed in the upper cover plate (1), the anti-explosion groove (9) is inserted into the anti-explosion hole (10), and an anti-explosion valve (11) is welded at the upper end of the anti-explosion groove (9).

3. The battery case cover for preventing bending short circuit of connecting sheet according to claim 1, wherein: the bottom side of upper cover plate (1) is equipped with a plurality of pintle (12), be equipped with on lower apron (2) with pintle (12) equal hole (13) of quantity, pintle (12) are installed and are in the hole (13) link together upper cover plate (1) and lower apron (2).

4. The battery case cover for preventing bending short circuit of connecting sheet according to claim 1, wherein: the lower cover plate (2) is provided with a liquid injection hole (14), and a sealant nail (15) is arranged on the liquid injection hole (14).

5. The battery case cover for preventing bending short circuit of connecting sheet according to claim 1, wherein: the upper end of lower apron (2) is equipped with symmetrical mounting groove (16), install electrode rivet (17) in mounting groove (16), electrode rivet (17) bottom side welds on pole piece (3), electrode clamp plate (18) of symmetry are installed to the upper end of upper apron (1), electrode rivet (17)'s upper end welding machine is on electrode clamp plate (18) of homonymy.