CN212934705U - Lead-acid storage battery - Google Patents

Abstract

The invention relates to a lead-acid storage battery, which comprises a battery case and a polar plate arranged in the battery case, and is characterized in that the polar plate at least comprises two bent polar plates, the bent polar plates are formed by mutually stacking a series of positive and negative polar plates, the positive polar plates form a positive central line along the extending direction of polar lugs, the negative polar plates form a negative central line along the extending direction of the polar lugs, and the positive central line is perpendicular to the negative central line. The horizontal battery has the advantages of small internal resistance, low cost, simple assembly process, higher safety and good consistency.

Description

Lead-acid storage battery

Technical Field

The utility model relates to a lead acid battery field.

Background

The lead accumulator is widely used in the fields of automobile starting power supply, uninterrupted power supply, power supply and energy storage power supply from electric bicycle to diesel submarine, etc. because of its advantages of stability, reliability, no memory effect, low cost, capacity of being made into single large-capacity battery, etc., its output and energy storage amount are still the first of chemical power supply. The horizontal battery is used as one of lead-acid storage batteries, and because the polar plate of the horizontal battery is horizontally placed in the using process, the layering phenomenon of sulfuric acid electrolyte is effectively reduced. The composite lead wire used in the grid weaving process has the characteristics of good tensile resistance and corrosion resistance, and the ribs of the woven grid are more uniform and dense, so that the high-current charge and discharge performance is stronger. Horizontal batteries have been an elongated structure in a single grid in a "straight" arrangement. The adaptability to the domestic market is extremely low, and some manufacturers make the horizontal battery into two 6V batteries and then serially connect the two batteries from the outside to form a 12V horizontal battery. But one more end face is welded, so that the using amount of lead and tin solder is increased, and the cost is increased. The internal bending type horizontal battery saves external series connection, turns directly inside, has smaller internal resistance and saves lead and tin solder. The cost is lower. The assembly process is simpler, and the safety is higher. The structure of two 6V external serial connections is changed due to the fact that the internal connection is integrated. The overall consistency is better.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a quasi-bipolar horizontal battery, include the battery case, place in polar plate in the battery case, its characterized in that, the polar plate includes two polar plates of bending at least, the polar plate of bending is piled up mutually by a series of positive and negative polar plates and is formed, positive plate forms positive central line along utmost point ear direction of stretching out, the negative plate forms negative central line along utmost point ear direction of stretching out, positive central line with negative central line is perpendicular to each other.

Furthermore, the battery shell also comprises a unipolar plate and a bipolar plate, the bent polar plate is connected with the bipolar plate, and the bipolar plate is connected with the unipolar plate.

Further, the size of the bent polar plate is consistent with that of the bipolar plate.

Furthermore, the bent polar plate and the bipolar plate are separated by a sealing element, and the bipolar plate and the unipolar plate are separated by a sealing element.

Furthermore, the sealing element is an I-shaped plastic piece.

The utility model discloses a horizontal battery internal resistance is little, with low costs, assembly process is simple, the security is higher, the uniformity is good.

Drawings

Fig. 1 is a schematic view of a horizontal battery of the present invention;

fig. 2 is a schematic diagram of the horizontal cell seal of the present invention.

Detailed Description

The present invention will be further described with reference to the following detailed description of the embodiments.

A quasi-bipolar horizontal battery comprises a battery case 1, wherein the battery case is provided with a polar plate placing groove 2 and a battery case opening 3, a bent polar plate 4, a bipolar plate 5 and a unipolar plate 6 are placed in the polar plate placing groove, and the polar plate placing groove 2 is formed by the inner wall of the battery case 1 and a partition 10 to form a U-shaped channel. The polar plate 4 of bending is piled up each other by a series of positive negative grids and is formed, positive grid stretches out the direction along utmost point ear 7 and forms positive central line X, negative grid stretches out the direction along utmost point ear and forms negative central line Y, positive central line X with negative central line Y is mutually perpendicular, thereby realizes the utility model aims at. The bent plate 4 is preferably of the same size as the other plates. The utility model discloses a polar plate 4 of bending is 2, also can be 4 or more for needs. The polar plates are isolated by a sealing element 8, the sealing element 7 between the single cells is cast into an I-shaped plastic part, and silica gel sealing strips are embedded at two sides of the plastic part. As shown in fig. 2, the inter-cell sealing element 8 comprises a sealing component 11 coated with silica gel and a channel 12 filled with epoxy glue, the sealing element is used for isolating gas and liquid channels, preventing the inter-cell cross cells from causing short circuit, a tab 9 of a polar plate close to an opening of a battery case extends out of the opening 3 of the battery case and can be cast and welded at one time to form a bus bar, and a side cover is bonded after the tab is welded with a terminal, so that the assembly is completed.

In addition to the above embodiments, the technical features or technical data of the present invention can be selected and combined again within the scope disclosed in the claims and the specification of the present invention to constitute new embodiments, which can be realized by those skilled in the art without creative efforts, and therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.

Claims (5)

1. A lead-acid storage battery comprises a battery case and a polar plate placed in the battery case, and is characterized in that the polar plate at least comprises two bent polar plates, the bent polar plates are formed by mutually stacking a series of positive and negative polar plates, the positive polar plates form a positive central line along the extending direction of polar lugs, the negative polar plates form a negative central line along the extending direction of the polar lugs, and the positive central line and the negative central line are mutually perpendicular.

2. The lead-acid battery of claim 1, further comprising a unipolar plate and a bipolar plate within the battery case, wherein the bent plate is connected to the bipolar plate, and wherein the bipolar plate is connected to the unipolar plate.

3. The lead-acid battery of claim 2, wherein said bent plates are in conformity with the dimensions of said bipolar plate.

4. The lead-acid battery of claim 3, wherein said bent plate is separated from said bipolar plate by a seal, and said bipolar plate is separated from said unipolar plate by a seal.

5. The lead-acid battery of claim 4, wherein the seal is an "I" shaped plastic part.

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