A kind of battery grid
Technical field
The present invention relates to storage battery field, especially relate to the grid of lead acid accumulator.
Background technology
Lead acid accumulator price is lower, mature technology, and monomer capacity is widely used in numerous areas more greatly.The battery grid of lead acid accumulator is the battery pole plates for the manufacture of lead acid accumulator.Traditional lead acid accumulator plate grid all devises a lug, this lug forms the lug of the battery pole plates of lead acid accumulator, during use by bus-bar by all positive poles of lead acid accumulator monomer or the tab welding of negative plates to together, formation bus-bar extends out, the bus-bar extended out or weld with adjacent monomer, or reach battery case outside by terminal.
The lug of polar plate of lead acid storage battery converges the electric current of whole pole plate, lug just becomes the position of full wafer pole plate conductive capability most critical, the grid rib be connected with lug or the local defect of crossbeam can cause full wafer pole plate electricity cannot charge and discharge, and lug position is the bottleneck that full wafer pole plate high rate during charging-discharging improves.
Summary of the invention
The object of this invention is to provide a kind of novel lead acid accumulator plate grid structure, the polar plate of lead acid storage battery that this lead acid accumulator plate grid structure is made has saves consumption of lead, reduction pole plate resistance, improves the advantage of storage battery power characteristic.
The present invention's technical scheme used is: a kind of battery grid, and comprise some perpendicular ribs, some transverse rod strips, rib is connected to rib screen frame anyhow, along formation lug that the direction of perpendicular rib stretches out on grid.。
During use, directly welded by lug between the positive and negative grid utilizing the present invention to make and just connected together, compare with present lead acid accumulator, eliminate this component of bus-bar, thus consumption of lead can be saved in a large number, pole plate resistance can be reduced simultaneously, improve the power of storage battery.
As preferably, lug is the lug that perpendicular rib extends.
As preferably, each perpendicular rib extends lug respectively.
As preferably, lug is the lug for directly welding with the lug on opposite polarity grid.
As preferably, the spacing between perpendicular rib is less than the spacing between transverse rod strip.Preferred further, the spacing between transverse rod strip is 1.5 times to 2.5 times of the spacing between perpendicular rib.Existing lead acid accumulator, the gravity casting spacing of erecting between rib is greater than the spacing between transverse rod strip, but the few of help of the conduction of transverse rod strip to pole plate.The present invention, under ensureing that the spacing between perpendicular rib is less than the prerequisite of the spacing between transverse rod strip, spacing between perpendicular rib is generally 7 millimeters to 12 millimeters, spacing between transverse rod strip is then 10 millimeters to 18 millimeters, grid can directly be cast in perpendicular rib direction, it is just fewer that the quantity of transverse rod strip retains, and the object of reserve part transverse rod strip is the distortion in order to reduce perpendicular rib.This preferred version, is conducive to the effective rate of utilization improving material, improves the power of storage battery.
As preferably, the outer side edges of outermost two perpendicular ribs is respectively equipped with support ear.Preferred further, the number of the support ear that the outer side edges of outermost two perpendicular ribs is provided with is two, wherein away from support ear distance outermost two transverse rod strips of lug center line between distance be not equal to distance between the center line of support ear distance outermost two transverse rod strips of lug.Here, the center line of described outermost two transverse rod strips, refer to parallel with outermost two transverse rod strips and to the equidistant straight line of outermost two transverse rod strips, namely, the support ear away from lug and the support ear near lug with this center line for axis becomes asymmetric distribution.When positive and negative grid oppositely place by overlap, the spacing between the support ear on positive and negative grid is not less than 10mm.This preferred version, support ear of the present invention is conducive to the accurate location utilizing pole plate of the present invention, prevents pole plate to be partial to the side of pole group, thus is conducive to the reliability and the serviceability that improve lead acid accumulator.In addition during the reverse lamination of positive and negative pole plate, can ensure that the support ear of positive and negative pole plate is dislocation, thus be short-circuited by support ear between positive and negative pole plate when can prevent positive and negative pole plate lamination.
As preferably, be connected with the perpendicular rib fillet of outermost two apart from lug transverse rod strip farthest.Preferred further, the radius of corner that distance lug transverse rod strip is farthest connected with the perpendicular rib fillet of outermost two is more than or equal to 3 millimeters and is less than or equal to 10 millimeters.This preferred version, is conducive to the reliability improving grid.
As preferably, the cross section of perpendicular rib and transverse rod strip is rectangle, chamfering rectangle, round rectangle, rhombus or ellipse, and support ear is rectangular, circular arc, triangle or trapezoidal.
In sum, the beneficial effect that the present invention brings is: greatly can reduce consumption of lead when manufacturing lead acid accumulator and pole plate resistance, improve the power of storage battery simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the positive plate made of grid of the present invention and negative plate structure chart when using;
Fig. 3 is the structure chart of sealing strip of the present invention;
Fig. 4 is the structure chart of sealing strip fixed structure of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
As shown in Figure 1, grid of the present invention comprises perpendicular rib 1, transverse rod strip 2, anyhow rib is connected to rib screen frame, grid forms lug 3 along the direction of perpendicular rib 1 stretches out, lug 3 preferably erects the lug that rib 1 extends, in addition, preferably each perpendicular rib 1 extends lug 3 respectively, the object that the quantity of lug 3 and the quantity of perpendicular rib 1 are consistent to better implement the present invention.Wherein, the spacing between perpendicular rib 1 is less than the spacing between transverse rod strip 2, and the spacing between transverse rod strip 2 is 1.5 times to 2.5 times of the spacing between perpendicular rib 1.The present embodiment, the spacing between perpendicular rib 1 is 8 millimeters, and the spacing between transverse rod strip 2 is 16 millimeters.In addition, the cross section of perpendicular rib 1 and transverse rod strip 2 is rectangle, chamfering rectangle, round rectangle, rhombus or ellipse, and the cross section that the present embodiment erects rib 1 and transverse rod strip 2 is round rectangle.
As preferably, the outer side edges of the perpendicular rib 1 of outermost two is respectively equipped with support ear 4, the number of the support ear 4 that the outer side edges of the perpendicular rib 1 of the present embodiment outermost two is provided with is two, wherein away from lug 3 support ear 4 apart from outermost two transverse rod strips 2 center line between distance be not equal near lug 3 support ear 4 apart from outermost two transverse rod strips 2 center line between distance.In addition, support ear 4 is rectangular, circular arc, triangle or trapezoidal, and support ear can also be hollow-core construction.The present embodiment, support ear 4 is rectangular, and support ear is away from the predominate fillet of perpendicular rib.
As preferably, distance lug 3 transverse rod strip 2 is farthest connected with perpendicular rib 1 fillet of outermost two, the radius of corner that distance lug 3 transverse rod strip 2 is farthest connected with perpendicular rib 1 fillet of outermost two is further more than or equal to 3 millimeters and is less than or equal to 10 millimeters, and the radius of corner that the present embodiment is connected with perpendicular rib 1 fillet of outermost two away from the transverse rod strip 2 of lug 3 equals 5 millimeters.
As shown in Figure 2, the positive plate made of positive grid of the present invention and negative grid and negative plate are oppositely overlapping in same single lattice of battery case places.For two monomer series-connected connections of pole group adjacent in battery case: the lug of positive plate directly welds to the corresponding lug of the negative plate of adjacent single lattice.In the group's monomer of same pole: the lug of positive plate is positioned at group's monomer the same side, pole, the lug of negative plate is positioned at group's monomer the same side, pole, and the lug of positive plate and the lug of negative plate are positioned at the relative both sides of pole group's monomer; The lug of positive plate is provided with sealing strip 31, and the lug of negative plate is also provided with sealing strip 31; And the sealing strip on each positive plate is in turn connected to form positive pole partition panel 3a, the partition sealing strip on each negative plate is in turn connected to form negative pole partition panel 3b; The first casting glue groove 32 is formed between contiguous positive pole partition panel and negative pole partition panel, the lug of the positive plate of one of them pole group's monomer is positioned at this first casting glue groove, the lug of the negative plate of another pole group's monomer is also positioned at this first casting glue groove, the lug one_to_one corresponding of the positive and negative pole plate in same first casting glue groove, and be welded to connect between the lug of positive plate with the lug of corresponding negative plate; Weld forms weld part 73(solder joint), be filled with casting glue in described first casting glue groove.
As shown in Figure 3,4, partition sealing strip downside is provided with fixed part 314, and partition sealing strip upper side is provided with the support portion 311 matched with described fixed part, coordinates fixing between two partition sealing strips be connected to each other by fixed part with support portion.Described fixed part is protruding/accommodation cavity, and described support portion is for holding cavity/projection.Projection comprises trapezoidal projection and some columnar projections 316 being arranged on trapezoidal protruding 315 end faces, and described accommodation cavity comprises trapezoidal groove 312 and some cylindrical recesses 313 be arranged on trapezoidal groove bottom surface.The inner bottom surface of battery case body is provided with the holding tank/spacing block set matched with fixed part.
The specific embodiment of the above is only the present invention's preferably execution mode, not limits specific embodiment of the invention scope with this.The equivalence change that all shapes according to the present invention, structure are done all ought to be included in the present invention.