阅读说明：本技术 一种轻型铅蓄电池 (Light lead accumulator ) 是由 王新虎 刘孝伟 阙奕鹏 于 2020-04-17 设计创作，主要内容包括：本发明公开了一种轻型铅蓄电池,包括电池箱体以及电池箱体内的极板组件,所述极板组件包括极耳、若干板栅以及若干起间隔作用的隔板,所述板栅包括塑料边框以及位于塑料边框内的复合铅丝,所述塑料边框设有连接端,所述连接端设有若干用于插接复合铅丝的第一通孔,所述极耳与连接端固定连接,复合铅丝与极耳固定连接,所述隔板位于相邻两板栅之间,隔板与塑料边框密封连接,隔板与电池箱体的内壁固定连接。(The invention discloses a light lead storage battery, which comprises a battery box body and a plate assembly in the battery box body, wherein the plate assembly comprises a lug, a plurality of grids and a plurality of separators which play a role in spacing, the grids comprise a plastic frame and composite lead wires positioned in the plastic frame, the plastic frame is provided with a connecting end, the connecting end is provided with a plurality of first through holes for inserting the composite lead wires, the lug is fixedly connected with the connecting end, the composite lead wires are fixedly connected with the lug, the separators are positioned between two adjacent grids, the separators are hermetically connected with the plastic frame, and the separators are fixedly connected with the inner wall of the battery box body.)

1. The utility model provides a light-duty lead accumulator, includes the polar plate subassembly in battery box and the battery box, characterized by the polar plate subassembly includes utmost point ear, a plurality of grid and a plurality of baffles that play the interval effect, the grid includes the plastics frame and is located the compound plumbous silk of plastics frame, the plastics frame is equipped with the link, the link is equipped with a plurality of first through-holes that are used for pegging graft compound plumbous silk, utmost point ear and link fixed connection, compound plumbous silk pass first through-hole and utmost point ear fixed connection, the baffle is located between two adjacent grids, baffle and plastics frame sealing connection, the outside edge of a plurality of baffles respectively with the inner wall fixed connection of battery box.

2. The light-duty lead storage battery of claim 1, wherein said composite lead wire includes a core body for reinforcing and an outer structure for covering said core body, said core body is made of glass fiber, and said outer structure is made of 0.3SnPb alloy.

3. The light-weight lead-acid battery as claimed in claim 1, wherein the plastic frame has ribs, and the ribs have second through holes for passing the composite lead wire therethrough.

4. The light-duty lead storage battery of claim 1, wherein said tab is formed by casting and punching.

5. The light-weight lead-acid battery as claimed in claim 1, wherein the plastic frame is injection molded.

6. The light-duty lead-acid battery as claimed in claim 1, wherein said plastic frame is made of polyethylene, polypropylene or acrylonitrile-butadiene-styrene copolymer.

7. The light-weight lead-acid battery as recited in claim 1, wherein the end of said tab adjacent to the plastic frame is formed as a mating end, said mating end having a channel configuration, said connecting end engaging said channel configuration.

8. An electric vehicle, characterized in that: a light-duty lead storage battery comprising the 'a light-duty lead storage battery' according to any one of claims 1 to 7.

Technical Field

The invention relates to a storage battery, in particular to a light lead storage battery.

Background

The lead accumulator is widely used as the first of the chemical power sources for uninterrupted power supply, power supply from electric bicycle to diesel submarine, and also for the reason that it has the advantages of stability, reliability, no memory effect, low price, and can be made into single large-capacity battery. A grid of a conventional lead-acid battery is made of a lead or lead alloy plate, for example, a "grid for a lead-acid battery and a lead-acid battery" disclosed in chinese patent document, and publication No. CN104541394B, which has an upper frame bone constituting an upper side, a lower frame bone constituting a lower side, and a mesh portion located between the upper frame bone and the lower frame bone and formed by intersecting ribs, in which mesh portion a ratio Wu/W of an upper half of a mass Wu to a total mass W is 62.5% or more and 67% or less, and a coating layer having a Sn content larger than that of the ribs is provided on at least a part of a surface of the ribs, the coating layer not being provided on a surface of the lower frame bone. The lead has high density, so that the weight of the storage battery is high, and meanwhile, an active substance in the lead storage battery expands in the charging and discharging process, and the lead grid cannot bear excessive internal pressure due to loss of the lead grid, so that the lead grid is broken, and finally, the positive electrode and the negative electrode are in short circuit.

Disclosure of Invention

The invention provides a light lead storage battery, aiming at overcoming the problems that a lead grid of the existing lead storage battery is too heavy and the lead grid is likely to generate short circuit along with the expansion of an active substance after being used for a long time, and the invention can reduce the whole weight of the battery by reducing the weight of the grid and simultaneously avoid the short circuit caused by the expansion of the active substance.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a light-duty lead accumulator, includes the polar plate subassembly in battery box and the battery box, the polar plate subassembly includes utmost point ear, a plurality of grid and a plurality of baffles that play the interval effect, the grid includes the plastics frame and is located the compound plumbous silk of plastics frame, the plastics frame is equipped with the link, the link is equipped with a plurality of first through-holes that are used for pegging graft compound plumbous silk, utmost point ear and link fixed connection, compound plumbous silk pass first through-hole and utmost point ear fixed connection, the baffle is located between two adjacent grids, baffle and plastics frame sealing connection, the outside edge of a plurality of baffles respectively with the inner wall fixed connection of battery box. The plastic frame has the advantages that the plastic frame is used for fixing the composite lead wires, the weight of the grids is reduced due to the adoption of the plastic material, meanwhile, the plastic frame restrains active substances among the grids, according to the chemical principle of the lead storage battery, the active substances can expand in the charging and discharging process, and corrosion and expansion of a battery box body are caused. The separator has the functions of separating different positive and negative grids, enclosing the plastic frame and the separators at two sides to form an independent cavity, and respectively arranging positive and negative active substances in the cavity to meet the electrochemical principle of the lead storage battery during charging and discharging. The edge of baffle and the inner wall contact of battery box, and the edge of plastics frame is located the plane within range that the baffle edge encloses, consequently has the certain distance between the inner wall of plastics frame and battery box, for the deformation headspace of plastics frame, also avoids external force to strike direct action on grid tray simultaneously, causes the weeping.

Preferably, the composite lead wire comprises a core body and an outer layer structure, wherein the core body plays a reinforcing role, the outer layer structure wraps the core body, the core body is made of glass fiber materials, and the outer layer structure is made of 0.3SnPb alloy materials. The composite lead wire has the function of conducting electricity, and leads out charges generated by chemical reaction of active substances to the lug, and because the original lead alloy grid is improved into the plastic frame matched with the composite lead wire in order to reduce the weight, the radial dimension of the composite lead wire is far smaller than the axial dimension of the composite lead wire, in order to improve the structural strength of the composite lead wire and avoid the fracture of the composite lead wire, 0.3SnPb alloy is covered on the surface layer of the glass fiber core body by adopting the processes of coating, electroplating and the like, so that the structural strength of the glass fiber core body is improved while the conductivity of the glass fiber core body is met.

Preferably, the plastic frame is provided with a plurality of rib plates, and the rib plates are provided with a plurality of second through holes for allowing the composite lead wires to pass through. The ribbed plate is used to increase the structural strength of the plastic frame and maintain the shape of the composite lead wire.

Preferably, the tab is formed by casting and punching. Firstly, the basic shape of the tab is processed by a casting process, and then the excess rim charge of the tab is removed by a pressing process, so that the tab meets the precision requirement.

Preferably, the plastic frame is injection molded.

Preferably, the plastic frame is made of polyethylene, polypropylene or acrylonitrile-butadiene-styrene copolymer material. The engineering plastic has strong acid resistance and can avoid the corrosion of active substances.

Preferably, one end of the lug, which is close to the plastic frame, is designed to be a matching end, the matching end is provided with a groove-shaped structure, and the connecting end is embedded with the groove-shaped structure. And the connecting end of the plastic frame is filled into the groove-shaped structure through an injection molding process, so that the tab is firmly connected with the plastic frame.

Preferably, an electric vehicle comprising the "a light lead storage battery" according to any one of claims 1 to 7.

Therefore, the invention has the following beneficial effects: (1) the weight of the grid is reduced by adopting the plastic material; (2) the plastic frame restrains active materials among the grids, so that the problem of short circuit caused by grid breakage along with expansion of the active materials is avoided; (3) the composite lead wire meets the conductivity and improves the structural strength; (4) the plastic frame is matched with the composite lead wire, so that the creep deformation of the grid can be inhibited, the softening and falling of active substances of the anode and the cathode are avoided, and the service life of the battery is prolonged.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure at a grid of the present invention.

Fig. 3 is a schematic view of another structure at a grid of the present invention.

Fig. 4 is a schematic view of the structure at the plastic rim of the present invention.

Fig. 5 is a structural schematic diagram at a tab of the invention.

In the figure: 1. the battery box body 2, the polar plate assembly 3, the partition plate 4, the plastic frame 5, the polar ear 6, the ribbed plate 7, the composite lead wire 8, the connecting end 9, the first through hole 10, the second through hole 11, the matching end 12 and the groove structure.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.