CN209849865U

CN209849865U - Cast welding mould cavity structure

Info

Publication number: CN209849865U
Application number: CN201920041491.2U
Authority: CN
Inventors: 张�林; 王军安; 徐建刚; 夏诗忠; 刘长来
Original assignee: Camel Group Xiangyang Storage Battery Co Ltd
Current assignee: Camel Group Xiangyang Storage Battery Co Ltd
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2019-12-27
Anticipated expiration: 2029-01-10

Abstract

The utility model discloses a cast joint mould die cavity structure. Belongs to the technical field of cast welding of pole plates and busbars for manufacturing lead-acid storage batteries. The storage battery mainly solves the problem that the edge pole plate falls after the pole plate and the bus bar are cast and welded to be molded in the existing storage battery. It is mainly characterized in that: comprises a cast-weld mould cavity capable of accommodating a bus bar; a chamfering mechanism is arranged at the edge of the die cavity close to the position of the bus bar in the cast-weld die cavity; the chamfering mechanism is matched with the part of the plate lug on the outermost side of the pole group, which is inserted into the bus bar; the upper part of the chamfering mechanism is an arc-shaped top, and the lower part of the chamfering mechanism vertically extends to the bottom of the die cavity. The pole plate lugs are deformed inwards by stress after being inserted, and the insertion position of the outermost pole plate lug is changed. The utility model has the characteristics of simple structure, can prevent effectively that the plate ear cast joint back polar plate from falling the piece, improving production efficiency and extension battery life, the cast joint shaping of mainly used battery polar plate ear and busbar.

Description

Cast welding mould cavity structure

Technical Field

The utility model belongs to the technical field of lead acid battery board ear and busbar cast joint. In particular to a cast-weld mould cavity structure for combining a lead-acid storage battery pole plate and a bus bar in cast-weld mode.

Background

The starting lead-acid battery is widely applied to the market as a starting power and an energy storage power supply of a modern automobile. The polar plates and the bus bar are required to be connected by cast welding in the production, assembly and manufacturing processes of the battery, and the positive and negative polar plates in each unit cell can be connected in series to form a unit cell. In the production process, a lead pump is used for pouring molten lead alloy into a cast-weld mold cavity through a liquid conveying pipe, the tab is inserted into liquid alloy in a bus bar cavity when pouring is finished, and when the temperature of the liquid lead alloy is reduced to be lower than a solid phase temperature, the liquid lead alloy is solidified, so that the connection between the tab and a bus bar is established. In the production process, the outermost pole plate and the outermost layer of the busbar are close to the edge of a mold cavity during cast welding, the cast welding of the outermost pole plate is incomplete, so that the pole plate is broken, and the capacity and the service life of the storage battery can be influenced in the later period.

Disclosure of Invention

The utility model aims at providing a prevent that ear cast joint back polar plate from falling cast joint mould cavity structure of piece to above-mentioned weak point, guarantee that outmost polar plate and busbar marginal distance are > 1mm at least after the cast joint is accomplished, prevent that follow-up polar plate from falling the piece problem, improve production efficiency, extension battery life.

The technical solution of the utility model is that: the utility model provides a cast joint mould die cavity structure, includes the cast joint mould die cavity that can hold the busbar, its characterized in that: and a chamfering mechanism is arranged at the edge of the die cavity close to the position of the bus bar in the die cavity of the cast-weld die.

The technical solution of the utility model in the chamfer mechanism with the board ear of board ear row outside insert the part of busbar and cooperate.

The technical solution of the utility model in chamfer mechanism upper portion be the arc top, the lower part extends to the mould cavity bottom perpendicularly.

The technical solution of the utility model in the arc top upper end of chamfer mechanism and the upper end parallel and level of busbar position.

The technical solution of the utility model in the arc top lower extreme of chamfer mechanism and the lateral part edge at busbar position between distance > 1 mm.

The utility model discloses because the mould die cavity border position that is close to busbar position in cast joint mould die cavity is equipped with chamfer mechanism, the part that the busbar was inserted to the board ear in chamfer mechanism and board ear row outside cooperatees, upper portion is the arc top behind the chamfer mechanism chamfer, therefore in the cast joint in-process of utmost point ear and busbar, make polar plate board ear position produce inside deformation through the atress after inserting, change the inserted position of outmost polar plate board ear, it is better with the busbar fusion effect to make the cast joint in-process outmost board ear, more do not influence busbar shaping and drawing of patterns process, the improvement production efficiency that reaches when being convenient for produce has been solved to the cast joint back busbar border polar plate and has fallen the piece phenomenon, the polar plate in the battery use has been avoided falling the piece phenomenon, the battery performance also obtains improving.

The utility model has the characteristics of simple structure, can prevent effectively that the lug from cast joint back polar plate from falling the piece, improving production efficiency and extension battery life. The utility model discloses the cast joint shaping of mainly used battery polar plate board ear and busbar.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 4 of the present invention.

Fig. 5 is a schematic position diagram of the chamfering mechanism, the plate lugs, and the bus bar according to embodiment 1 of the present invention.

Reference numerals: 1. a cast-weld mold cavity; 2. a chamfering mechanism; 3. a bus bar; 4. a polar plate; 5. and (5) a plate ear.

Detailed Description

As shown in fig. 1 and 5. The embodiment 1 of the utility model provides a cast joint mould cavity structure, including the cast joint mould cavity 1 that can hold busbar 3, the mould cavity border position that is close to busbar 3 place position in cast joint mould cavity 1 is equipped with chamfer mechanism 2. The chamfering mechanism 2 is fitted to a portion where the lug 5 at the outermost side of the pole group is inserted into the bus bar 3. The upper part of the chamfering mechanism 2 is an arc-shaped top part, and the lower part of the chamfering mechanism vertically extends to the bottom of the mold cavity. The upper end of the arc top is flush with the upper end of the position of the bus bar 3, and the distance between the lower end of the arc top and the side edge of the position of the bus bar is more than 1 mm. The polar plate 4 enters the cast-weld mold cavity 1 through insertion, the polar plate on the outermost edge of the plate lug 5 is in insertion contact with the cast-weld mold chamfering structure 2, the plate lug 5 deforms after being stressed, the position of the plate lug 5 inserted into the busbar is changed, the motion track position of the plate lug 5 moves inwards, the edge plate lug 5 can be better combined with the busbar for forming, and after cast-weld in the cast-weld mold cavity 1 is finished, the busbar 3 cannot interfere with the whole process of the cast-weld mold chamfering structure 2 in the demolding process.

Embodiments 2 to 4 of the present invention are shown in fig. 2 to 4, respectively. The chamfer structure 2 can be applied to the cavity of the bus bar forming mold of each embodiment, and the function is the same as that of embodiment 1.

Claims

1. The utility model provides a cast joint mould cavity structure, includes cast joint mould cavity (1) that can hold busbar (3), its characterized in that: a chamfering mechanism (2) is arranged at the edge of the die cavity close to the position of the bus bar (3) in the cast-weld die cavity (1); the chamfering mechanism (2) is matched with a part of the plate lug (5) on the outermost side of the pole group, which is inserted into the bus bar (3); the upper part of the chamfering mechanism (2) is an arc-shaped top part, and the lower part of the chamfering mechanism vertically extends to the bottom of a mold cavity; the upper end of the arc-shaped top of the chamfering mechanism (2) is flush with the upper end of the position of the busbar (3).

2. The cast-weld mold cavity structure according to claim 1, wherein: the distance between the lower end of the arc-shaped top of the chamfering mechanism (2) and the side edge of the position where the bus bar (3) is located is larger than 1 mm.