CN205828538U - A kind of positive grid increased the service life - Google Patents

Abstract

A positive grid that can prolong the service life, comprising an upper frame, a lower frame, a left frame, a right frame, horizontal ribs, and vertical ribs, the upper portion of the upper frame is provided with lugs, and the thickness of the positive grid is from the upper frame to the lower The border is decremented. According to the analysis of the corrosion state of the positive grid of the failed battery, the utility model designs a positive grid whose grid thickness gradually changes. The technical solution of gradual change, while rationally using materials, effectively solves the problem of battery failure caused by positive grid corrosion that has plagued battery manufacturers for many years, and improves the service life of the battery.

Description

A positive grid with extended service life

technical field

The utility model relates to a storage battery part, in particular to a positive grid that can prolong the service life, and belongs to the technical field of storage batteries.

Background technique

The grid is an important part of the battery. On the one hand, it functions as a carrier of active substances, and plays the role of skeleton support and adhesion of active substances; on the other hand, as a conductor of current, it plays the role of current collection, confluence and transmission; The grid also acts as a current equalizer of the pole plate to evenly distribute the current to the active material. The battery grid is mostly made of lead-antimony and lead-calcium alloy materials, which are made by gravity casting, pressing belt pulling mesh and pressing belt punching and forming. The reason for the failure of lead-acid batteries is more of the corrosion of the positive grid. This is because the positive grid is always under the action of a higher electrode potential, so its main component, lead, is easily oxidized and corroded into lead oxide. As the number of charging and discharging increases, the positive grid becomes thinner and thinner, and even breaks, eventually leading to battery failure. Usually battery manufacturers prolong the anti-corrosion time of the positive plate by increasing the thickness of the positive plate grid, thereby prolonging the service life, but the increase in the thickness of the positive plate will undoubtedly increase the consumption of materials and increase the product cost. Therefore, it is very important to design a reasonable grid structure to solve the battery failure caused by the corrosion and fracture of the positive grid.

Utility model content

The purpose of the utility model is to provide a positive grid that can prolong the service life by rationally designing the positive grid structure according to the position where the positive plate is prone to corrosion and failure.

Problem described in the utility model is solved with following technical scheme:

A positive grid that can prolong the service life, comprising an upper frame, a lower frame, a left frame, a right frame, horizontal ribs, and vertical ribs, the upper portion of the upper frame is provided with plate lugs, and the thickness of the positive grid is from the upper frame to the lower The border is decremented.

For the positive grid that can prolong the service life, the thickness dimension of the upper frame of the positive grid is d1, the thickness dimension of the lower frame of the positive grid is d2, and d1/d2 is 1.4-2.3.

For the above-mentioned positive grid that can prolong the service life, the thickness of the upper frame of the positive grid is 1-5 mm.

According to the analysis of the corrosion state of the positive grid of the failed battery, the utility model designs a positive grid with a gradually changing thickness of the grid. This structure can effectively solve the problem of premature failure of the battery caused by positive grid corrosion, and reasonably control The cost of the product has the feasibility of mass promotion and application. The utility model breaks the existing design concept that the overall thickness of the grid is consistent, and proposes a technical scheme in which the thickness of the grid gradually changes from top to bottom. While using materials reasonably, it effectively solves the problem of positive grid corrosion that has plagued battery manufacturers for many years. The battery failure problem caused by it improves the service life of the battery.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an A-A sectional view (enlarged) of Fig. 1 .

The list of each label in the figure is: 1, upper frame, 2, plate lug, 3, transverse rib, 4, vertical rib, 5, right frame, 6, lower frame, 7, left frame.

detailed description

Referring to Fig. 1 and Fig. 2, the utility model comprises an upper frame 1, a lower frame 6, a left frame 7, and a right frame 5, and a horizontal rib 3 and a vertical rib 4 are arranged in a rectangular frame surrounded by the upper, lower, left, and right frames , plate lugs 2 are arranged on the upper part of the upper frame. The utility model finds by dissecting a large number of life tests and returned batteries that the corrosion of the batteries that lead to battery failure due to positive grid corrosion is mainly concentrated in the middle and upper parts of the positive grid, and the closer to the plate ear, the more serious the corrosion of the grid, so The following solution is proposed: the thickness dimension of the positive grid decreases from the upper frame to the lower frame. Through this design, the battery failure caused by the corrosion and fracture of the middle and upper part of the positive grid is solved, and at the same time, the material is reasonably used to control the cost of the battery.

Referring to Figure 2, the geometric dimensions of the thickness of the positive grid are as follows: the thickness of the upper frame is d1, the thickness of the lower frame of the positive grid is d2, and d1/d2 is 1.4 to 2.3; the thickness of the upper frame is 1-5 mm. The specific size of the positive grid depends on the use and capacity of the battery. Generally, the thickness of the positive grid for industrial batteries is relatively thick, and the thickness of the positive grid for automotive starting batteries is relatively thin.

Claims (3)

1. A positive grid that can prolong the service life, comprising an upper frame (1), a lower frame (6), a left frame (7), a right frame (5) and transverse ribs (3), vertical ribs (4), upper Plate lugs (2) are provided on the upper part of the frame, which is characterized in that the thickness of the positive grid decreases from the upper frame to the lower frame. 2. The positive grid that can prolong service life according to claim 1, characterized in that: the thickness dimension of the upper frame of the positive grid is d1, the thickness dimension of the lower frame of the positive grid is d2, and d1/d2 is 1.4～2.3. 3. The positive grid with extended service life according to claim 1, characterized in that: the thickness of the upper frame of the positive grid is 1-5 mm.